Merge remote-tracking branch 'origin/master' into 3389-querylog-export

# Conflicts:
#	CHANGELOG.md

.github/ISSUE_TEMPLATE/bug.yml

@@ -10,52 +10,58 @@
           - 'label': >
                 I have checked the
                 [Wiki](https://github.com/AdguardTeam/AdGuardHome/wiki) and
-                [Discussions](https://github.com/AdguardTeam/AdGuardHome/discussions)
+                [Discussions](https://github.com/AdguardTeam/AdGuardHome/discussions/categories/q-a)
                 and found no answer
             'required': true
           - 'label': >
                 I have searched other issues and found no duplicates
             'required': true
           - 'label': >
-                I want to report a bug and not ask a question
+                I want to report a bug and not [ask a question or ask for
+                help](https://github.com/AdguardTeam/AdGuardHome/discussions/categories/q-a)
+            'required': true
+          - 'label': >
+                I have set up AdGuard Home correctly and [configured clients to
+                use it](https://github.com/AdguardTeam/AdGuardHome/wiki/Clients).
+                (Use the
+                [Discussions](https://github.com/AdguardTeam/AdGuardHome/discussions/categories/q-a)
+                for help with installing and configuring clients.)
             'required': true
     'id': 'prerequisites'
     'type': 'checkboxes'
   - 'attributes':
-        'description': 'On which operating system type does the issue occur?'
-        'label': 'Operating system type'
+        'description': 'On which Platform does the issue occur?'
+        'label': 'Platform (OS and CPU architecture)'
         'options':
-          - 'FreeBSD'
-          - 'Linux, OpenWrt'
-          - 'Linux, Other (please mention the version in the description)'
-          - 'macOS (aka Darwin)'
-          - 'OpenBSD'
-          - 'Windows'
-          - 'Other (please mention in the description)'
+          - 'Darwin (aka macOS)/AMD64 (aka x86_64)'
+          - 'Darwin (aka macOS)/ARM64'
+          - 'FreeBSD/386'
+          - 'FreeBSD/AMD64 (aka x86_64)'
+          - 'FreeBSD/ARM64'
+          - 'FreeBSD/ARMv5'
+          - 'FreeBSD/ARMv6'
+          - 'FreeBSD/ARMv7'
+          - 'Linux/386'
+          - 'Linux/AMD64 (aka x86_64)'
+          - 'Linux/ARM64'
+          - 'Linux/ARMv5'
+          - 'Linux/ARMv6'
+          - 'Linux/ARMv7'
+          - 'Linux/MIPS LE'
+          - 'Linux/MIPS'
+          - 'Linux/MIPS64 LE'
+          - 'Linux/MIPS64'
+          - 'Linux/PPC64 LE'
+          - 'OpenBSD/AMD64 (aka x86_64)'
+          - 'OpenBSD/ARM64'
+          - 'Windows/386'
+          - 'Windows/AMD64 (aka x86_64)'
+          - 'Windows/ARM64'
+          - 'Custom (please mention in the description)'
     'id': 'os'
     'type': 'dropdown'
     'validations':
         'required': true
-  - 'attributes':
-        'description': 'On which CPU architecture does the issue occur?'
-        'label': 'CPU architecture'
-        'options':
-          - 'AMD64'
-          - 'x86'
-          - '64-bit ARM'
-          - 'ARMv5'
-          - 'ARMv6'
-          - 'ARMv7'
-          - '64-bit MIPS'
-          - '64-bit MIPS LE'
-          - '32-bit MIPS'
-          - '32-bit MIPS LE'
-          - '64-bit PowerPC LE'
-          - 'Other (please mention in the description)'
-    'id': 'arch'
-    'type': 'dropdown'
-    'validations':
-        'required': true
   - 'attributes':
         'description': 'How did you install AdGuard Home?'
         'label': 'Installation'
@@ -63,7 +69,7 @@
           - 'GitHub releases or script from README'
           - 'Docker'
           - 'Snapcraft'
-          - 'Custom port'
+          - 'Custom package (OpenWrt, HomeAssistant, etc; please mention in the description)'
           - 'Other (please mention in the description)'
     'id': 'install'
     'type': 'dropdown'
@@ -89,21 +95,55 @@
     'validations':
         'required': true
   - 'attributes':
-        'description': 'Please describe the bug'
-        'label': 'Description'
+        'description': >
+            Please describe what you did.  An `nslookup` or a `dig` command is
+            the best way.  For crashes, please provide a full failure log.
+        'label': 'Action'
         'value': |
-            #### What did you do?
-
-            #### Expected result
-
-            #### Actual result
-
-            #### Screenshots (if applicable)
-
-            #### Additional information
-    'id': 'description'
+            ```sh
+            nslookup -debug -type=a 'www.example.com' '$YOUR_AGH_ADDRESS'
+            ```
+    'id': 'failing_action'
     'type': 'textarea'
     'validations':
         'required': true
-'description': 'File a bug report'
+  - 'attributes':
+        'description': >
+            What did you expect to see?  Please add a description and/or
+            screenshots, if applicable.
+        'label': 'Expected result'
+        'placeholder': >
+            What did you expect to see?
+    'id': 'expected'
+    'type': 'textarea'
+    'validations':
+        'required': true
+  - 'attributes':
+        'description': >
+            What happened instead?  Please add a description and/or screenshots,
+            if applicable.
+        'label': 'Actual result'
+        'placeholder': >
+            What did you see instead?
+    'id': 'result'
+    'type': 'textarea'
+    'validations':
+        'required': true
+  - 'attributes':
+        'description': >
+            Please add additional information, such as non-standard OS or port,
+            here.  You can also put screenshots here, if applicable.  For
+            example, it is better to copy and paste text from a terminal instead
+            of posting a screenshot of the terminal.
+        'label': 'Additional information and/or screenshots'
+        'placeholder': >
+            Additional OS information, screenshots of the UI, etc.
+    'id': 'additional'
+    'type': 'textarea'
+    'validations':
+        'required': false
+'description': >
+    Open a bug report.  Please do not open bug reports for questions or help
+    with configuring clients.  If you want to ask for help, use the Discussions
+    section.
 'name': 'Bug'

.github/ISSUE_TEMPLATE/feature.yml

@@ -23,19 +23,32 @@
     'id': 'prerequisites'
     'type': 'checkboxes'
   - 'attributes':
-        'description': 'Please describe the request'
-        'label': 'Description'
-        'value': |
-            #### What problem are you trying to solve?
-
-            #### Proposed solution
-
-            #### Alternatives considered
-
-            #### Additional information
-    'id': 'description'
+        'description': 'Please describe the problem you are trying to solve'
+        'label': 'The problem'
+        'placeholder': >
+            Please describe the problem you are trying to solve
+    'id': 'problem'
     'type': 'textarea'
     'validations':
         'required': true
+  - 'attributes':
+        'description': 'What feature are you proposing to solve this problem?'
+        'label': 'Proposed solution'
+        'placeholder': >
+            What feature are you proposing to solve this problem?
+    'id': 'proposed_solution'
+    'type': 'textarea'
+    'validations':
+        'required': true
+  - 'attributes':
+        'label': 'Alternatives considered and additional information'
+        'placeholder': >
+            Are there any other ways to solve the problem?
+    'id': 'additional'
+    'type': 'textarea'
+    'validations':
+        'required': false
 'description': 'Suggest a feature or an enhancement for AdGuard Home'
+'labels':
+  - 'feature request'
 'name': 'Feature request or enhancement'

.github/PULL_REQUEST_TEMPLATE

@@ -0,0 +1,20 @@
+Before submitting a PR please make sure that:
+
+1.  You have discussed your solution in an issue and have got an
+    approval from a maintainer.
+
+2.  This isn't a localization fix; please send those to our
+    [CrowdIn](https://crowdin.com/project/adguard-applications/en#/adguard-home)
+    page.
+
+3.  Your code follows our
+    [code guidelines](https://github.com/AdguardTeam/CodeGuidelines/blob/master/Go/Go.md).
+
+Add a short description here.  The description should include:
+
+1.  Which issue this PR closes (`Closes #NNNN.`) or updates (`Updates
+    #NNNN.`).
+
+2.  A short description of how the change achieves that.
+
+Do not forget to remove these instructions.

.github/workflows/build.yml

@@ -1,7 +1,7 @@
 'name': 'build'
 
 'env':
-  'GO_VERSION': '1.19.8'
+  'GO_VERSION': '1.19.10'
   'NODE_VERSION': '14'
 
 'on':

.github/workflows/lint.yml

@@ -1,7 +1,7 @@
 'name': 'lint'
 
 'env':
-  'GO_VERSION': '1.19.8'
+  'GO_VERSION': '1.19.10'
 
 'on':
   'push':

.github/workflows/potential-duplicates.yml

@@ -0,0 +1,18 @@
+'name': 'potential-duplicates'
+'on':
+    'issues':
+        'types':
+          - 'opened'
+'jobs':
+    'run':
+        'runs-on': 'ubuntu-latest'
+        'steps':
+          - 'uses': 'wow-actions/potential-duplicates@v1'
+            'with':
+                'GITHUB_TOKEN': '${{ secrets.GITHUB_TOKEN }}'
+                'state': 'all'
+                'threshold': 0.6
+                'comment': |
+                    Potential duplicates: {{#issues}}
+                     *  [#{{ number }}] {{ title }} ({{ accuracy }}%)
+                    {{/issues}}

.gitignore

@@ -21,7 +21,6 @@
 /snapcraft_login
 AdGuardHome*
 coverage.txt
-leases.db
 node_modules/
 
 !/build/gitkeep

CHANGELOG.md

@@ -14,20 +14,164 @@ and this project adheres to
 <!--
 ## [v0.108.0] - TBA
 
-## [v0.107.29] - 2023-04-26 (APPROX.)
+## [v0.107.33] - 2023-06-28 (APPROX.)
 
-See also the [v0.107.29 GitHub milestone][ms-v0.107.29].
+See also the [v0.107.33 GitHub milestone][ms-v0.107.33].
 
-[ms-v0.107.29]: https://github.com/AdguardTeam/AdGuardHome/milestone/65?closed=1
+[ms-v0.107.33]: https://github.com/AdguardTeam/AdGuardHome/milestone/68?closed=1
 
 NOTE: Add new changes BELOW THIS COMMENT.
 -->
 
 ### Added
 
+- The new HTTP API, `GET /control/querylog/export`, which can be used to
+  export query log items.  See `openapi/openapi.yaml` for the full description
+  ([#3389]).
+- The ability to set inactivity periods for filtering blocked services in the
+  configuration file ([#951]).  The UI changes are coming in the upcoming
+  releases.
+- The ability to edit rewrite rules via `PUT /control/rewrite/update` HTTP API
+  ([#1577]).
+
+### Changed
+
+#### Configuration Changes
+
+In this release, the schema version has changed from 20 to 21.
+
+- Property `dns.blocked_services`, which in schema versions 20 and earlier used
+  to be a list containing ids of blocked services, is now an object containing
+  ids and schedule for blocked services:
+
+  ```yaml
+  # BEFORE:
+  'blocked_services':
+  - id_1
+  - id_2
+
+  # AFTER:
+  'blocked_services':
+    'ids':
+    - id_1
+    - id_2
+    'schedule':
+      'time_zone': 'Local'
+      'sun':
+        'start': '0s'
+        'end': '24h'
+      'mon':
+        'start': '10m'
+        'end': '23h30m'
+      'tue':
+        'start': '20m'
+        'end': '23h'
+      'wed':
+        'start': '30m'
+        'end': '22h30m'
+      'thu':
+        'start': '40m'
+        'end': '22h'
+      'fri':
+        'start': '50m'
+        'end': '21h30m'
+      'sat':
+        'start': '1h'
+        'end': '21h'
+  ```
+
+  To rollback this change, replace `dns.blocked_services` object with the list
+  of ids of blocked services and change the `schema_version` back to `20`.
+
+### Fixed
+
+- Queries with the question-section target `.`, for example `NS .`, are now
+  counted in the statistics and correctly shown in the query log ([#5910]).
+- Safe Search not working with `AAAA` queries for domains that don't have `AAAA`
+  records ([#5913]).
+
+[#951]:  https://github.com/AdguardTeam/AdGuardHome/issues/951
+[#1577]: https://github.com/AdguardTeam/AdGuardHome/issues/1577
+[#3389]: https://github.com/AdguardTeam/AdGuardHome/issues/3389
+[#5910]: https://github.com/AdguardTeam/AdGuardHome/issues/5910
+[#5913]: https://github.com/AdguardTeam/AdGuardHome/issues/5913
+
+<!--
+NOTE: Add new changes ABOVE THIS COMMENT.
+-->
+
+
+
+## [v0.107.32] - 2023-06-13
+
+### Fixed
+
+- DNSCrypt upstream not resetting the client and resolver information on
+  dialing errors ([#5872]).
+
+
+
+
+## [v0.107.31] - 2023-06-08
+
+See also the [v0.107.31 GitHub milestone][ms-v0.107.31].
+
+### Fixed
+
+- Startup errors on OpenWrt ([#5872]).
+- Plain-UDP upstreams always falling back to TCP, causing outages and slowdowns
+  ([#5873], [#5874]).
+
+[#5872]: https://github.com/AdguardTeam/AdGuardHome/issues/5872
+[#5873]: https://github.com/AdguardTeam/AdGuardHome/issues/5873
+[#5874]: https://github.com/AdguardTeam/AdGuardHome/issues/5874
+
+[ms-v0.107.31]: https://github.com/AdguardTeam/AdGuardHome/milestone/67?closed=1
+
+
+
+## [v0.107.30] - 2023-06-07
+
+See also the [v0.107.30 GitHub milestone][ms-v0.107.30].
+
+### Security
+
+- Go version has been updated to prevent the possibility of exploiting the
+  CVE-2023-29402, CVE-2023-29403, and CVE-2023-29404 Go vulnerabilities fixed in
+  [Go 1.19.10][go-1.19.10].
+
+### Fixed
+
+- Unquoted IPv6 bind hosts with trailing colons erroneously considered
+  unspecified addresses are now properly validated ([#5752]).
+
+  **NOTE:** the Docker healthcheck script now also doesn't interpret the `""`
+  value as unspecified address.
+- Incorrect `Content-Type` header value in `POST /control/version.json` and `GET
+  /control/dhcp/interfaces` HTTP APIs ([#5716]).
+- Provided bootstrap servers are now used to resolve the hostnames of plain
+  UDP/TCP upstream servers.
+
+[#5716]: https://github.com/AdguardTeam/AdGuardHome/issues/5716
+
+[go-1.19.10]:   https://groups.google.com/g/golang-announce/c/q5135a9d924/m/j0ZoAJOHAwAJ
+[ms-v0.107.30]: https://github.com/AdguardTeam/AdGuardHome/milestone/66?closed=1
+
+
+
+## [v0.107.29] - 2023-04-18
+
+See also the [v0.107.29 GitHub milestone][ms-v0.107.29].
+
+### Added
+
 - The ability to exclude client activity from the query log or statistics by
-  editing client's settings on the Clients settings page in the UI  ([#1717],
-  [#4299]).
+  editing client's settings on the respective page in the UI ([#1717], [#4299]).
+
+### Changed
+
+- Stored DHCP leases moved from `leases.db` to `data/leases.json`.  The file
+  format has also been optimized.
 
 ### Fixed
 
@@ -38,14 +182,12 @@ NOTE: Add new changes BELOW THIS COMMENT.
 - All Safe Search services being unchecked by default.
 - Panic when a DNSCrypt stamp is invalid ([#5721]).
 
-[#1717]: https://github.com/AdguardTeam/AdGuardHome/issues/1717
-[#4299]: https://github.com/AdguardTeam/AdGuardHome/issues/4299
+[#5712]: https://github.com/AdguardTeam/AdGuardHome/issues/5712
 [#5721]: https://github.com/AdguardTeam/AdGuardHome/issues/5721
 [#5725]: https://github.com/AdguardTeam/AdGuardHome/issues/5725
+[#5752]: https://github.com/AdguardTeam/AdGuardHome/issues/5752
 
-<!--
-NOTE: Add new changes ABOVE THIS COMMENT.
--->
+[ms-v0.107.29]: https://github.com/AdguardTeam/AdGuardHome/milestone/65?closed=1
 
 
 
@@ -170,11 +312,9 @@ In this release, the schema version has changed from 17 to 20.
 [#1163]: https://github.com/AdguardTeam/AdGuardHome/issues/1163
 [#1333]: https://github.com/AdguardTeam/AdGuardHome/issues/1333
 [#1472]: https://github.com/AdguardTeam/AdGuardHome/issues/1472
-[#1717]: https://github.com/AdguardTeam/AdGuardHome/issues/1717
 [#3290]: https://github.com/AdguardTeam/AdGuardHome/issues/3290
 [#3459]: https://github.com/AdguardTeam/AdGuardHome/issues/3459
 [#4262]: https://github.com/AdguardTeam/AdGuardHome/issues/4262
-[#4299]: https://github.com/AdguardTeam/AdGuardHome/issues/4299
 [#5567]: https://github.com/AdguardTeam/AdGuardHome/issues/5567
 [#5701]: https://github.com/AdguardTeam/AdGuardHome/issues/5701
 
@@ -1940,11 +2080,15 @@ See also the [v0.104.2 GitHub milestone][ms-v0.104.2].
 
 
 <!--
-[Unreleased]: https://github.com/AdguardTeam/AdGuardHome/compare/v0.107.29...HEAD
-[v0.107.29]:  https://github.com/AdguardTeam/AdGuardHome/compare/v0.107.28...v0.107.29
+[Unreleased]: https://github.com/AdguardTeam/AdGuardHome/compare/v0.107.33...HEAD
+[v0.107.33]:  https://github.com/AdguardTeam/AdGuardHome/compare/v0.107.32...v0.107.33
 -->
 
-[Unreleased]: https://github.com/AdguardTeam/AdGuardHome/compare/v0.107.28...HEAD
+[Unreleased]: https://github.com/AdguardTeam/AdGuardHome/compare/v0.107.32...HEAD
+[v0.107.32]:  https://github.com/AdguardTeam/AdGuardHome/compare/v0.107.31...v0.107.32
+[v0.107.31]:  https://github.com/AdguardTeam/AdGuardHome/compare/v0.107.30...v0.107.31
+[v0.107.30]:  https://github.com/AdguardTeam/AdGuardHome/compare/v0.107.29...v0.107.30
+[v0.107.29]:  https://github.com/AdguardTeam/AdGuardHome/compare/v0.107.28...v0.107.29
 [v0.107.28]:  https://github.com/AdguardTeam/AdGuardHome/compare/v0.107.27...v0.107.28
 [v0.107.27]:  https://github.com/AdguardTeam/AdGuardHome/compare/v0.107.26...v0.107.27
 [v0.107.26]:  https://github.com/AdguardTeam/AdGuardHome/compare/v0.107.25...v0.107.26

README.md

@@ -466,6 +466,10 @@ bug or implementing the feature.
     Home](https://github.com/ebrianne/adguard-exporter) by
     [@ebrianne](https://github.com/ebrianne).
 
+ *  [Terminal-based, real-time traffic monitoring and statistics for your AdGuard Home
+    instance](https://github.com/Lissy93/AdGuardian-Term) by
+    [@Lissy93](https://github.com/Lissy93)
+
  *  [AdGuard Home on GLInet
     routers](https://forum.gl-inet.com/t/adguardhome-on-gl-routers/10664) by
     [Gl-Inet](https://gl-inet.com/).

bamboo-specs/bamboo.yaml

@@ -1,5 +1,8 @@
----
-!include test.yaml
-
 ---
 !include release.yaml
+
+---
+!include snapcraft.yaml
+
+---
+!include test.yaml

bamboo-specs/release.yaml

@@ -1,349 +1,290 @@
 ---
 'version': 2
 'plan':
-  'project-key': 'AGH'
-  'key': 'AGHBSNAPSPECS'
-  'name': 'AdGuard Home - Build and publish release'
+    'project-key': 'AGH'
+    'key': 'AGHBSNAPSPECS'
+    'name': 'AdGuard Home - Build and publish release'
 # Make sure to sync any changes with the branch overrides below.
 'variables':
-  'channel': 'edge'
-  'dockerGo': 'adguard/golang-ubuntu:6.3'
+    'channel': 'edge'
+    'dockerGo': 'adguard/golang-ubuntu:6.7'
 
 'stages':
-- 'Build frontend':
-    'manual': false
-    'final': false
-    'jobs':
-    - 'Build frontend'
+  - 'Build frontend':
+        'manual': false
+        'final': false
+        'jobs':
+          - 'Build frontend'
 
-- 'Make release':
-    'manual': false
-    'final': false
-    'jobs':
-    - 'Make release'
+  - 'Make release':
+        'manual': false
+        'final': false
+        'jobs':
+          - 'Make release'
 
-- 'Make and publish docker':
-    'manual': false
-    'final': false
-    'jobs':
-    - 'Make and publish docker'
+  - 'Make and publish docker':
+        'manual': false
+        'final': false
+        'jobs':
+          - 'Make and publish docker'
 
-- 'Publish to static storage':
-    'manual': false
-    'final': false
-    'jobs':
-    - 'Publish to static storage'
+  - 'Publish to static storage':
+        'manual': false
+        'final': false
+        'jobs':
+          - 'Publish to static storage'
 
-- 'Publish to Snapstore':
-    'manual': false
-    'final': false
-    'jobs':
-    - 'Publish to Snapstore'
-
-- 'Publish to GitHub Releases':
-    'manual': false
-    'final': false
-    'jobs':
-    - 'Publish to GitHub Releases'
+  - 'Publish to GitHub Releases':
+        'manual': false
+        'final': false
+        'jobs':
+          - 'Publish to GitHub Releases'
 
 'Build frontend':
-  'docker':
-    'image': '${bamboo.dockerGo}'
-    'volumes':
-      '${system.YARN_DIR}': '${bamboo.cacheYarn}'
-  'key': 'BF'
-  'other':
-    'clean-working-dir': true
-  'tasks':
-  - 'checkout':
-      'force-clean-build': true
-  - 'script':
-      'interpreter': 'SHELL'
-      'scripts':
-      - |
-        #!/bin/sh
+    'docker':
+        'image': '${bamboo.dockerGo}'
+        'volumes':
+            '${system.YARN_DIR}': '${bamboo.cacheYarn}'
+    'key': 'BF'
+    'other':
+        'clean-working-dir': true
+    'tasks':
+      - 'checkout':
+            'force-clean-build': true
+      - 'script':
+            'interpreter': 'SHELL'
+            'scripts':
+              - |
+                #!/bin/sh
 
-        set -e -f -u -x
+                set -e -f -u -x
 
-        # Explicitly checkout the revision that we need.
-        git checkout "${bamboo.repository.revision.number}"
+                # Explicitly checkout the revision that we need.
+                git checkout "${bamboo.repository.revision.number}"
 
-        make js-deps js-build
-  'artifacts':
-  - 'name': 'AdGuardHome frontend'
-    'pattern': 'build*/**'
-    'shared': true
-    'required': true
-  'requirements':
-  - 'adg-docker': 'true'
+                make js-deps js-build
+    'artifacts':
+      - 'name': 'AdGuardHome frontend'
+        'pattern': 'build/**'
+        'shared': true
+        'required': true
+    'requirements':
+      - 'adg-docker': 'true'
 
 'Make release':
-  'docker':
-    'image': '${bamboo.dockerGo}'
-    'volumes':
-      '${system.GO_CACHE_DIR}': '${bamboo.cacheGo}'
-      '${system.GO_PKG_CACHE_DIR}': '${bamboo.cacheGoPkg}'
-  'key': 'MR'
-  'other':
-    'clean-working-dir': true
-  'tasks':
-  - 'checkout':
-      'force-clean-build': true
-  - 'script':
-      'interpreter': 'SHELL'
-      'scripts':
-      - |
-        #!/bin/sh
+    'docker':
+        'image': '${bamboo.dockerGo}'
+        'volumes':
+            '${system.GO_CACHE_DIR}': '${bamboo.cacheGo}'
+            '${system.GO_PKG_CACHE_DIR}': '${bamboo.cacheGoPkg}'
+    'key': 'MR'
+    'other':
+        'clean-working-dir': true
+    'tasks':
+      - 'checkout':
+            'force-clean-build': true
+      - 'script':
+            'interpreter': 'SHELL'
+            'scripts':
+              - |
+                #!/bin/sh
 
-        set -e -f -u -x
+                set -e -f -u -x
 
-        # Explicitly checkout the revision that we need.
-        git checkout "${bamboo.repository.revision.number}"
+                # Explicitly checkout the revision that we need.
+                git checkout "${bamboo.repository.revision.number}"
 
-        # Run the build with the specified channel.
-        echo "${bamboo.gpgSecretKeyPart1}${bamboo.gpgSecretKeyPart2}"\
-                | awk '{ gsub(/\\n/, "\n"); print; }'\
-                | gpg --import --batch --yes
+                # Run the build with the specified channel.
+                echo "${bamboo.gpgSecretKeyPart1}${bamboo.gpgSecretKeyPart2}"\
+                        | awk '{ gsub(/\\n/, "\n"); print; }'\
+                        | gpg --import --batch --yes
 
-        make\
-                CHANNEL=${bamboo.channel}\
-                GPG_KEY_PASSPHRASE=${bamboo.gpgPassword}\
-                FRONTEND_PREBUILT=1\
-                PARALLELISM=1\
-                VERBOSE=2\
-                build-release
-  # TODO(a.garipov): Use more fine-grained artifact rules.
-  'artifacts':
-  - 'name': 'AdGuardHome dists'
-    'pattern': 'dist/**'
-    'shared': true
-    'required': true
-  'requirements':
-  - 'adg-docker': 'true'
+                make\
+                        CHANNEL=${bamboo.channel}\
+                        GPG_KEY_PASSPHRASE=${bamboo.gpgPassword}\
+                        FRONTEND_PREBUILT=1\
+                        PARALLELISM=1\
+                        VERBOSE=2\
+                        build-release
+    # TODO(a.garipov): Use more fine-grained artifact rules.
+    'artifacts':
+      - 'name': 'AdGuardHome dists'
+        'pattern': 'dist/**'
+        'shared': true
+        'required': true
+    'requirements':
+      - 'adg-docker': 'true'
 
 'Make and publish docker':
-  'key': 'MPD'
-  'other':
-    'clean-working-dir': true
-  'tasks':
-  - 'checkout':
-      'force-clean-build': true
-  - 'script':
-      'interpreter': 'SHELL'
-      'scripts':
-      - |
-        #!/bin/sh
+    'key': 'MPD'
+    'other':
+        'clean-working-dir': true
+    'tasks':
+      - 'checkout':
+            'force-clean-build': true
+      - 'script':
+            'interpreter': 'SHELL'
+            'scripts':
+              - |
+                #!/bin/sh
 
-        set -e -f -u -x
+                set -e -f -u -x
 
-        COMMIT="${bamboo.repository.revision.number}"
-        export COMMIT
-        readonly COMMIT
+                COMMIT="${bamboo.repository.revision.number}"
+                export COMMIT
+                readonly COMMIT
 
-        # Explicitly checkout the revision that we need.
-        git checkout "$COMMIT"
+                # Explicitly checkout the revision that we need.
+                git checkout "$COMMIT"
 
-        # Install Qemu, create builder.
-        docker version -f '{{ .Server.Experimental }}'
-        docker buildx rm buildx-builder || :
-        docker buildx create --name buildx-builder --driver docker-container\
-                --use
-        docker buildx inspect --bootstrap
+                # Install Qemu, create builder.
+                docker version -f '{{ .Server.Experimental }}'
+                docker buildx rm buildx-builder || :
+                docker buildx create --name buildx-builder --driver docker-container\
+                                --use
+                docker buildx inspect --bootstrap
 
-        # Login to DockerHub.
-        docker login -u="${bamboo.dockerHubUsername}"\
-                -p="${bamboo.dockerHubPassword}"
+                # Login to DockerHub.
+                docker login -u="${bamboo.dockerHubUsername}"\
+                        -p="${bamboo.dockerHubPassword}"
 
-        # Boot the builder.
-        docker buildx inspect --bootstrap
+                # Boot the builder.
+                docker buildx inspect --bootstrap
 
-        # Print Docker info.
-        docker info
+                # Print Docker info.
+                docker info
 
-        # Prepare and push the build.
-        env\
-                CHANNEL="${bamboo.channel}"\
-                DIST_DIR='dist'\
-                DOCKER_IMAGE_NAME='adguard/adguardhome'\
-                DOCKER_OUTPUT="type=image,name=adguard/adguardhome,push=true"\
-                VERBOSE='1'\
-                sh ./scripts/make/build-docker.sh
-      'environment':
-        DOCKER_CLI_EXPERIMENTAL=enabled
-  'final-tasks':
-  - 'clean'
-  'requirements':
-  - 'adg-docker': 'true'
+                # Prepare and push the build.
+                env\
+                        CHANNEL="${bamboo.channel}"\
+                        DIST_DIR='dist'\
+                        DOCKER_IMAGE_NAME='adguard/adguardhome'\
+                        DOCKER_OUTPUT="type=image,name=adguard/adguardhome,push=true"\
+                        VERBOSE='1'\
+                        sh ./scripts/make/build-docker.sh
+            'environment':
+                DOCKER_CLI_EXPERIMENTAL=enabled
+    'final-tasks':
+      - 'clean'
+    'requirements':
+      - 'adg-docker': 'true'
 
 'Publish to static storage':
-  'key': 'PUB'
-  'other':
-    'clean-working-dir': true
-  'tasks':
-  - 'clean'
-  - 'checkout':
-      'repository': 'bamboo-deploy-publisher'
-      'path': 'bamboo-deploy-publisher'
-      'force-clean-build': true
-  - 'script':
-      'interpreter': 'SHELL'
-      'scripts':
-      - |
-        #!/bin/sh
+    'key': 'PUB'
+    'other':
+        'clean-working-dir': true
+    'tasks':
+      - 'clean'
+      - 'checkout':
+            'repository': 'bamboo-deploy-publisher'
+            'path': 'bamboo-deploy-publisher'
+            'force-clean-build': true
+      - 'script':
+            'interpreter': 'SHELL'
+            'scripts':
+              - |
+                #!/bin/sh
 
-        set -e -f -u -x
+                set -e -f -u -x
 
-        cd ./dist/
+                cd ./dist/
 
-        CHANNEL="${bamboo.channel}"
-        export CHANNEL
+                CHANNEL="${bamboo.channel}"
+                export CHANNEL
 
-        ../bamboo-deploy-publisher/deploy.sh adguard-home-"$CHANNEL"
-  'final-tasks':
-  - 'clean'
-  'requirements':
-  - 'adg-docker': 'true'
-
-'Publish to Snapstore':
-  'docker':
-    'image': '${bamboo.dockerGo}'
-  'key': 'PTS'
-  'other':
-    'clean-working-dir': true
-  'tasks':
-  - 'clean'
-  - 'checkout':
-      'repository': 'bamboo-deploy-publisher'
-      'path': 'bamboo-deploy-publisher'
-      'force-clean-build': true
-  - 'script':
-      'interpreter': 'SHELL'
-      'scripts':
-      - |
-        #!/bin/sh
-
-        set -e -f -u -x
-
-        cd ./dist/
-
-        channel="${bamboo.channel}"
-        readonly channel
-
-        case "$channel"
-        in
-        ('release')
-              snapchannel='candidate'
-              ;;
-        ('beta')
-              snapchannel='beta'
-              ;;
-        ('edge')
-              snapchannel='edge'
-              ;;
-        (*)
-              echo "invalid channel '$channel'"
-              exit 1
-              ;;
-        esac
-
-        env\
-                SNAPCRAFT_CHANNEL="$snapchannel"\
-                SNAPCRAFT_EMAIL="${bamboo.snapcraftEmail}"\
-                SNAPCRAFT_MACAROON="${bamboo.snapcraftMacaroonPassword}"\
-                SNAPCRAFT_UBUNTU_DISCHARGE="${bamboo.snapcraftUbuntuDischargePassword}"\
-                ../bamboo-deploy-publisher/deploy.sh adguard-home-snap
-  'final-tasks':
-  - 'clean'
-  'requirements':
-  - 'adg-docker': 'true'
+                ../bamboo-deploy-publisher/deploy.sh adguard-home-"$CHANNEL"
+    'final-tasks':
+      - 'clean'
+    'requirements':
+      - 'adg-docker': 'true'
 
 'Publish to GitHub Releases':
-  'key': 'PTGR'
-  'other':
-    'clean-working-dir': true
-  'tasks':
-  - 'clean'
-  - 'checkout':
-      'repository': 'bamboo-deploy-publisher'
-      'path': 'bamboo-deploy-publisher'
-      'force-clean-build': true
-  - 'script':
-      'interpreter': 'SHELL'
-      'scripts':
-      - |
-        #!/bin/sh
+    'key': 'PTGR'
+    'other':
+        'clean-working-dir': true
+    'tasks':
+      - 'clean'
+      - 'checkout':
+            'repository': 'bamboo-deploy-publisher'
+            'path': 'bamboo-deploy-publisher'
+            'force-clean-build': true
+      - 'script':
+            'interpreter': 'SHELL'
+            'scripts':
+              - |
+                #!/bin/sh
 
-        set -e -f -u -x
+                set -e -f -u -x
 
-        channel="${bamboo.channel}"
-        readonly channel
+                channel="${bamboo.channel}"
+                readonly channel
 
-        if [ "$channel" != 'release' ] && [ "${channel}" != 'beta' ]
-        then
-              echo "don't publish to GitHub Releases for this channel"
+                if [ "$channel" != 'release' ] && [ "${channel}" != 'beta' ]
+                then
+                        echo "don't publish to GitHub Releases for this channel"
 
-              exit 0
-        fi
+                        exit 0
+                fi
 
-        cd ./dist/
+                cd ./dist/
 
-        env\
-                GITHUB_TOKEN="${bamboo.githubPublicRepoPassword}"\
-                ../bamboo-deploy-publisher/deploy.sh adguard-home-github
-  'final-tasks':
-  - 'clean'
-  'requirements':
-  - 'adg-docker': 'true'
+                env\
+                        GITHUB_TOKEN="${bamboo.githubPublicRepoPassword}"\
+                        ../bamboo-deploy-publisher/deploy.sh adguard-home-github
+    'final-tasks':
+      - 'clean'
+    'requirements':
+      - 'adg-docker': 'true'
 
 'triggers':
-# Don't use minute values that end with a zero or a five as these are often used
-# in CI and so resources during these minutes can be quite busy.
-- 'cron': '0 42 13 ? * MON-FRI *'
+    # Don't use minute values that end with a zero or a five as these are often
+    # used in CI and so resources during these minutes can be quite busy.
+  - 'cron': '0 42 13 ? * MON-FRI *'
 'branches':
-  'create': 'manually'
-  'delete':
-    'after-deleted-days': 1
-    'after-inactive-days': 30
-  'integration':
-    'push-on-success': false
-    'merge-from': 'AdGuard Home - Build and publish release'
-  'link-to-jira': true
+    'create': 'manually'
+    'delete':
+        'after-deleted-days': 1
+        'after-inactive-days': 30
+    'integration':
+        'push-on-success': false
+        'merge-from': 'AdGuard Home   - Build and publish release'
+    'link-to-jira': true
 
 'notifications':
-- 'events':
-  - 'plan-completed'
-  'recipients':
-  - 'webhook':
-      'name': 'Build webhook'
-      'url': 'http://prod.jirahub.service.eu.consul/v1/webhook/bamboo?channel=adguard-qa'
+  - 'events':
+      - 'plan-completed'
+    'recipients':
+      - 'webhook':
+            'name': 'Build webhook'
+            'url': 'http://prod.jirahub.service.eu.consul/v1/webhook/bamboo?channel=adguard-qa'
 
 'labels': []
 'other':
-  'concurrent-build-plugin': 'system-default'
+    'concurrent-build-plugin': 'system-default'
 
 'branch-overrides':
-# beta-vX.Y branches are the branches into which the commits that are needed to
-# release a new patch version are initially cherry-picked.
-- '^beta-v[0-9]+\.[0-9]+':
-    # Build betas on release branches manually.
-    'triggers': []
-    # Set the default release channel on the release branch to beta, as we may
-    # need to build a few of these.
-    'variables':
-      'channel': 'beta'
-      'dockerGo': 'adguard/golang-ubuntu:6.3'
-# release-vX.Y.Z branches are the branches from which the actual final release
-# is built.
-- '^release-v[0-9]+\.[0-9]+\.[0-9]+':
-    # Disable integration branches for release branches.
-    'branch-config':
-      'integration':
-        'push-on-success': false
-        'merge-from': 'beta-v0.107'
-    # Build final releases on release branches manually.
-    'triggers': []
-    # Set the default release channel on the final branch to release, as these
-    # are the ones that actually get released.
-    'variables':
-      'channel': 'release'
-      'dockerGo': 'adguard/golang-ubuntu:6.3'
+    # beta-vX.Y branches are the branches into which the commits that are needed
+    # to release a new patch version are initially cherry-picked.
+  - '^beta-v[0-9]+\.[0-9]+':
+        # Build betas on release branches manually.
+        'triggers': []
+        # Set the default release channel on the release branch to beta, as we may
+        # need to build a few of these.
+        'variables':
+            'channel': 'beta'
+            'dockerGo': 'adguard/golang-ubuntu:6.7'
+    # release-vX.Y.Z branches are the branches from which the actual final
+    # release is built.
+  - '^release-v[0-9]+\.[0-9]+\.[0-9]+':
+        # Disable integration branches for release branches.
+        'branch-config':
+            'integration':
+                'push-on-success': false
+                'merge-from': 'beta-v0.107'
+        # Build final releases on release branches manually.
+        'triggers': []
+        # Set the default release channel on the final branch to release, as these
+        # are the ones that actually get released.
+        'variables':
+            'channel': 'release'
+            'dockerGo': 'adguard/golang-ubuntu:6.7'

bamboo-specs/snapcraft.yaml

@@ -0,0 +1,211 @@
+---
+# This part of the release build is separate from the one described in
+# release.yaml, because the Snapcraft infrastructure is brittle, and timeouts
+# during logins and uploads often lead to release blocking.
+'version': 2
+'plan':
+    'project-key': 'AGH'
+    'key': 'AGHSNAP'
+    'name': 'AdGuard Home - Build and publish Snapcraft release'
+# Make sure to sync any changes with the branch overrides below.
+'variables':
+    'channel': 'edge'
+    'dockerGo': 'adguard/golang-ubuntu:6.7'
+    'snapcraftChannel': 'edge'
+
+'stages':
+  - 'Download release':
+        'manual': false
+        'final': false
+        'jobs':
+          - 'Download release'
+
+  - 'Build packages':
+        'manual': false
+        'final': false
+        'jobs':
+          - 'Build packages'
+
+  - 'Publish to Snapstore':
+        'manual': false
+        'final': false
+        'jobs':
+          - 'Publish to Snapstore'
+
+# TODO(a.garipov): Consider using the Artifact Downloader Task if it ever learns
+# about plan branches.
+'Download release':
+    'artifacts':
+      - 'name': 'i386_binary'
+        'pattern': 'AdGuardHome_i386'
+        'shared': true
+        'required': true
+      - 'name': 'amd64_binary'
+        'pattern': 'AdGuardHome_amd64'
+        'shared': true
+        'required': true
+      - 'name': 'armhf_binary'
+        'pattern': 'AdGuardHome_armhf'
+        'shared': true
+        'required': true
+      - 'name': 'arm64_binary'
+        'pattern': 'AdGuardHome_arm64'
+        'shared': true
+        'required': true
+    'docker':
+        'image': '${bamboo.dockerGo}'
+    'key': 'DR'
+    'other':
+        'clean-working-dir': true
+    'tasks':
+      - 'checkout':
+            'force-clean-build': true
+      - 'script':
+            'interpreter': 'SHELL'
+            'scripts':
+            - |
+              #!/bin/sh
+
+              set -e -f -u -x
+
+              env\
+                      CHANNEL="${bamboo.channel}"\
+                      VERBOSE='1'\
+                      sh ./scripts/snap/download.sh
+    'requirements':
+      - 'adg-docker': 'true'
+
+'Build packages':
+    'artifact-subscriptions':
+      - 'artifact': 'i386_binary'
+      - 'artifact': 'amd64_binary'
+      - 'artifact': 'armhf_binary'
+      - 'artifact': 'arm64_binary'
+    'artifacts':
+      - 'name': 'i386_snap'
+        'pattern': 'AdGuardHome_i386.snap'
+        'shared': true
+        'required': true
+      - 'name': 'amd64_snap'
+        'pattern': 'AdGuardHome_amd64.snap'
+        'shared': true
+        'required': true
+      - 'name': 'armhf_snap'
+        'pattern': 'AdGuardHome_armhf.snap'
+        'shared': true
+        'required': true
+      - 'name': 'arm64_snap'
+        'pattern': 'AdGuardHome_arm64.snap'
+        'shared': true
+        'required': true
+    'docker':
+        'image': '${bamboo.dockerGo}'
+    'key': 'BP'
+    'other':
+        'clean-working-dir': true
+    'tasks':
+      - 'checkout':
+            'force-clean-build': true
+      - 'script':
+            'interpreter': 'SHELL'
+            'scripts':
+            - |
+              #!/bin/sh
+
+              set -e -f -u -x
+
+              env\
+                      VERBOSE='1'\
+                      sh ./scripts/snap/build.sh
+    'requirements':
+      - 'adg-docker': 'true'
+
+'Publish to Snapstore':
+    'artifact-subscriptions':
+      - 'artifact': 'i386_snap'
+      - 'artifact': 'amd64_snap'
+      - 'artifact': 'armhf_snap'
+      - 'artifact': 'arm64_snap'
+    'docker':
+        'image': '${bamboo.dockerGo}'
+    'key': 'PTS'
+    'other':
+        'clean-working-dir': true
+    'tasks':
+      - 'checkout':
+            'force-clean-build': true
+      - 'script':
+            'interpreter': 'SHELL'
+            'scripts':
+              - |
+                #!/bin/sh
+
+                set -e -f -u -x
+
+                env\
+                        SNAPCRAFT_CHANNEL="${bamboo.snapcraftChannel}"\
+                        SNAPCRAFT_STORE_CREDENTIALS="${bamboo.snapcraftMacaroonPassword}"\
+                        VERBOSE='1'\
+                        sh ./scripts/snap/upload.sh
+    'final-tasks':
+      - 'clean'
+    'requirements':
+      - 'adg-docker': 'true'
+
+'triggers':
+    # Don't use minute values that end with a zero or a five as these are often
+    # used in CI and so resources during these minutes can be quite busy.
+    #
+    # NOTE: The time is chosen to be exactly one hour after the main release
+    # build as defined as in release.yaml.
+  - 'cron': '0 42 14 ? * MON-FRI *'
+'branches':
+    'create': 'manually'
+    'delete':
+        'after-deleted-days': 1
+        'after-inactive-days': 30
+    'integration':
+        'push-on-success': false
+        'merge-from': 'AdGuard Home - Build and publish Snapcraft release'
+    'link-to-jira': true
+
+'notifications':
+  - 'events':
+      - 'plan-completed'
+    'recipients':
+      - 'webhook':
+            'name': 'Build webhook'
+            'url': 'http://prod.jirahub.service.eu.consul/v1/webhook/bamboo?channel=adguard-qa'
+
+'labels': []
+'other':
+    'concurrent-build-plugin': 'system-default'
+
+'branch-overrides':
+    # beta-vX.Y branches are the branches into which the commits that are needed
+    # to release a new patch version are initially cherry-picked.
+  - '^beta-v[0-9]+\.[0-9]+':
+        # Build betas on release branches manually.
+        'triggers': []
+        # Set the default release channel on the release branch to beta, as we may
+        # need to build a few of these.
+        'variables':
+            'channel': 'beta'
+            'dockerGo': 'adguard/golang-ubuntu:6.7'
+            'snapcraftChannel': 'beta'
+    # release-vX.Y.Z branches are the branches from which the actual final
+    # release is built.
+  - '^release-v[0-9]+\.[0-9]+\.[0-9]+':
+        # Disable integration branches for release branches.
+        'branch-config':
+            'integration':
+                'push-on-success': false
+                'merge-from': 'beta-v0.107'
+        # Build final releases on release branches manually.
+        'triggers': []
+        # Set the default release channel on the final branch to release, as these
+        # are the ones that actually get released.
+        'variables':
+            'channel': 'release'
+            'dockerGo': 'adguard/golang-ubuntu:6.7'
+            'snapcraftChannel': 'candidate'

bamboo-specs/test.yaml

@@ -1,64 +1,64 @@
 ---
 'version': 2
 'plan':
-  'project-key': 'AGH'
-  'key': 'AHBRTSPECS'
-  'name': 'AdGuard Home - Build and run tests'
+    'project-key': 'AGH'
+    'key': 'AHBRTSPECS'
+    'name': 'AdGuard Home - Build and run tests'
 'variables':
-  'dockerGo': 'adguard/golang-ubuntu:6.3'
+    'dockerGo': 'adguard/golang-ubuntu:6.7'
 
 'stages':
-- 'Tests':
-    'manual': false
-    'final': false
-    'jobs':
-    - 'Test'
+  - 'Tests':
+        'manual': false
+        'final': false
+        'jobs':
+          - 'Test'
 
 'Test':
-  'docker':
-    'image': '${bamboo.dockerGo}'
-    'volumes':
-      '${system.YARN_DIR}': '${bamboo.cacheYarn}'
-      '${system.GO_CACHE_DIR}': '${bamboo.cacheGo}'
-      '${system.GO_PKG_CACHE_DIR}': '${bamboo.cacheGoPkg}'
-  'key': 'TEST'
-  'other':
-    'clean-working-dir': true
-  'tasks':
-  - 'checkout':
-      'force-clean-build': true
-  - 'script':
-      'interpreter': 'SHELL'
-      'scripts':
-      - |
-        #!/bin/sh
+    'docker':
+        'image': '${bamboo.dockerGo}'
+        'volumes':
+            '${system.YARN_DIR}': '${bamboo.cacheYarn}'
+            '${system.GO_CACHE_DIR}': '${bamboo.cacheGo}'
+            '${system.GO_PKG_CACHE_DIR}': '${bamboo.cacheGoPkg}'
+    'key': 'TEST'
+    'other':
+        'clean-working-dir': true
+    'tasks':
+      - 'checkout':
+            'force-clean-build': true
+      - 'script':
+            'interpreter': 'SHELL'
+            'scripts':
+              - |
+                #!/bin/sh
 
-        set -e -f -u -x
+                set -e -f -u -x
 
-        make VERBOSE=1 ci go-tools lint
-  'final-tasks':
-  - 'clean'
-  'requirements':
-  - 'adg-docker': 'true'
+                make VERBOSE=1 ci go-tools lint
+    'final-tasks':
+      - 'clean'
+    'requirements':
+      - 'adg-docker': 'true'
 
 'branches':
-  'create': 'for-pull-request'
-  'delete':
-    'after-deleted-days': 1
-    'after-inactive-days': 5
-  'integration':
-    'push-on-success': false
-    'merge-from': 'AdGuard Home - Build and run tests'
-  'link-to-jira': true
+    'create': 'for-pull-request'
+    'delete':
+        'after-deleted-days': 1
+        'after-inactive-days': 5
+    'integration':
+        'push-on-success': false
+        'merge-from': 'AdGuard Home - Build and run tests'
+    'link-to-jira': true
 
 'notifications':
-- 'events':
-  - 'plan-status-changed'
-  'recipients':
-  - 'webhook':
-      'name': 'Build webhook'
-      'url': 'http://prod.jirahub.service.eu.consul/v1/webhook/bamboo'
+  - 'events':
+      - 'plan-status-changed'
+    'recipients':
+      - 'webhook':
+            'name': 'Build webhook'
+            'url': 'http://prod.jirahub.service.eu.consul/v1/webhook/bamboo'
 
 'labels': []
 'other':
-  'concurrent-build-plugin': 'system-default'
+    'concurrent-build-plugin': 'system-default'

client/public/login.html

@@ -19,7 +19,9 @@
         <div id="root"></div>
         <script>
             (function() {
-                document.body.dataset.theme = 'auto';
+                var prefersDark = window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches;
+                var currentTheme = prefersDark ? 'dark' : 'light';
+                document.body.dataset.theme = currentTheme;
             })();
         </script>
     </body>

client/src/__locales/ar.json

@@ -635,5 +635,6 @@
     "parental_control": "الرقابة الابويه",
     "safe_browsing": "تصفح آمن",
     "served_from_cache": "{{value}} <i>(يتم تقديمه من ذاكرة التخزين المؤقت)</i>",
-    "form_error_password_length": "يجب أن تتكون كلمة المرور من {{value}} من الأحرف على الأقل"
+    "form_error_password_length": "يجب أن تتكون كلمة المرور من {{value}} من الأحرف على الأقل",
+    "protection_section_label": "الحماية"
 }

client/src/__locales/be.json

@@ -150,7 +150,7 @@
     "dns_allowlists": "Белыя спісы DNS",
     "dns_blocklists_desc": "AdGuard Home будзе блакаваць дамены з чорных спісаў.",
     "dns_allowlists_desc": "Дамены з белых спісаў DNS будуць дазволены, нават калі яны знаходзяцца ў любым з чорных спісаў.",
-    "custom_filtering_rules": "Карыстацкія правілы фільтрацыі",
+    "custom_filtering_rules": "Карыстальніцкія правілы фільтрацыі",
     "encryption_settings": "Налады шыфравання",
     "dhcp_settings": "Налады DHCP",
     "upstream_dns": "Upstream DNS-серверы",
@@ -247,7 +247,7 @@
     "loading_table_status": "Загрузка...",
     "page_table_footer_text": "Старонка",
     "rows_table_footer_text": "радкоў",
-    "updated_custom_filtering_toast": "Занесены змены ў карыстацкія правілы",
+    "updated_custom_filtering_toast": "Карыстальніцкія правілы паспяхова захаваны",
     "rule_removed_from_custom_filtering_toast": "Карыстацкае правіла выдалена: {{rule}}",
     "rule_added_to_custom_filtering_toast": "Карыстацкае правіла дададзена: {{rule}}",
     "query_log_response_status": "Статус: {{value}}",
@@ -568,7 +568,7 @@
     "check_desc": "Праверыць фільтрацыю імя хаста",
     "check": "Праверыць",
     "form_enter_host": "Увядзіце імя хаста",
-    "filtered_custom_rules": "Адфільтраваны з дапамогай карыстацкіх правілаў фільтрацыі",
+    "filtered_custom_rules": "Адфільтраваны з дапамогай карыстальніцкіх правіл фільтрацыі",
     "choose_from_list": "Абраць са спіса",
     "add_custom_list": "Дадаць свой спіс",
     "host_whitelisted": "Хост занесены ў белы спіс",
@@ -642,5 +642,6 @@
     "anonymizer_notification": "<0>Заўвага:</0> Ананімізацыя IP уключана. Вы можаце адключыць яе ў <1>Агульных наладах</1>.",
     "confirm_dns_cache_clear": "Вы ўпэўнены, што хочаце ачысціць кэш DNS?",
     "cache_cleared": "Кэш DNS паспяхова ачышчаны",
-    "clear_cache": "Ачысціць кэш"
+    "clear_cache": "Ачысціць кэш",
+    "protection_section_label": "Ахова"
 }

client/src/__locales/cs.json

@@ -257,12 +257,12 @@
     "query_log_cleared": "Protokol dotazů byl úspěšně vymazán",
     "query_log_updated": "Protokol dotazů byl úspěšně aktualizován",
     "query_log_clear": "Vymazat protokoly dotazů",
-    "query_log_retention": "Uchování protokolů dotazů",
+    "query_log_retention": "Rotace protokolů dotazů",
     "query_log_enable": "Povolit protokol",
     "query_log_configuration": "Konfigurace protokolů",
     "query_log_disabled": "Protokol dotazu je zakázán a lze jej nakonfigurovat v <0>nastavení</0>",
     "query_log_strict_search": "Pro striktní vyhledávání použijte dvojité uvozovky",
-    "query_log_retention_confirm": "Opravdu chcete změnit uchovávání protokolu dotazů? Pokud snížíte hodnotu intervalu, některá data budou ztracena",
+    "query_log_retention_confirm": "Opravdu chcete změnit rotaci protokolu dotazů? Pokud snížíte hodnotu intervalu, některá data budou ztracena",
     "anonymize_client_ip": "Anonymizovat IP klienta",
     "anonymize_client_ip_desc": "Neukládat úplnou IP adresu klienta do protokolů a statistik",
     "dns_config": "Konfigurace DNS serveru",
@@ -668,5 +668,11 @@
     "disable_notify_for_hours": "Vypnout ochranu na {{count}} hod.",
     "disable_notify_for_hours_plural": "Vypnout ochranu na {{count}} hod.",
     "disable_notify_until_tomorrow": "Vypnout ochranu do zítřka",
-    "enable_protection_timer": "Ochrana bude zapnuta za {{time}}"
+    "enable_protection_timer": "Ochrana bude zapnuta za {{time}}",
+    "custom_retention_input": "Zadejte retenci v hodinách",
+    "custom_rotation_input": "Zadejte rotaci v hodinách",
+    "protection_section_label": "Ochrana",
+    "log_and_stats_section_label": "Protokol dotazů a statistiky",
+    "ignore_query_log": "Ignorovat tohoto klienta v protokolu dotazů",
+    "ignore_statistics": "Ignorovat tohoto klienta ve statistikách"
 }

client/src/__locales/da.json

@@ -257,12 +257,12 @@
     "query_log_cleared": "Forespørgselsloggen er blevet ryddet",
     "query_log_updated": "Forespørgselsloggen er blevet opdateret",
     "query_log_clear": "Ryd forespørgselslogfiler",
-    "query_log_retention": "Opbevar forespørgselslogger i",
+    "query_log_retention": "Rotation af forespørgselslog",
     "query_log_enable": "Aktivér log",
     "query_log_configuration": "Opsætning af logger",
     "query_log_disabled": "Forespørgselsloggen er deaktiveret og kan opsættes i <0>indstillingerne</0>",
     "query_log_strict_search": "Brug dobbelt anførselstegn til stringent søgning",
-    "query_log_retention_confirm": "Sikker på, at du vil ændre forespørgselsloggens opbevaringperiode? Mindskes intervalværdien, mistes data",
+    "query_log_retention_confirm": "Sikker på, at forespørgselsloggens rotationstid skal ændres? Mindskes intervalværdien, mistes nogle data",
     "anonymize_client_ip": "Anonymisér klient-IP",
     "anonymize_client_ip_desc": "Gem ikke fuld klient IP-adresse i logfiler eller statistikker",
     "dns_config": "DNS-serveropsætning",
@@ -668,5 +668,11 @@
     "disable_notify_for_hours": "Deaktivere beskyttelse i {{count}} time",
     "disable_notify_for_hours_plural": "Deaktivere beskyttelse i {{count}} timer",
     "disable_notify_until_tomorrow": "Deaktiver beskyttelse indtil i morgen",
-    "enable_protection_timer": "Beskyttelse deaktiveres om {{time}}"
+    "enable_protection_timer": "Beskyttelse deaktiveres om {{time}}",
+    "custom_retention_input": "Angiv opbevaringstid i timer",
+    "custom_rotation_input": "Angiv rotationstid i timer",
+    "protection_section_label": "Beskyttelse",
+    "log_and_stats_section_label": "Forespørgselslog og statistik",
+    "ignore_query_log": "Ignorér denne klient i forespørgselslog",
+    "ignore_statistics": "Ignorér denne klient i statistik"
 }

client/src/__locales/de.json

@@ -257,12 +257,12 @@
     "query_log_cleared": "Das Abfrageprotokoll wurde erfolgreich gelöscht",
     "query_log_updated": "Das Abfrageprotokoll wurde erfolgreich aktualisiert",
     "query_log_clear": "Abfrageprotokolle leeren",
-    "query_log_retention": "Abfrageprotokolle aufbewahren",
+    "query_log_retention": "Rotation der Abfrageprotokolle",
     "query_log_enable": "Protokoll aktivieren",
     "query_log_configuration": "Konfiguration der Protokolle",
     "query_log_disabled": "Das Abfrageprotokoll ist deaktiviert und kann in den <0>Einstellungen</0> konfiguriert werden.",
     "query_log_strict_search": "Doppelte Anführungszeichen für die strikte Suche verwenden",
-    "query_log_retention_confirm": "Möchten Sie die Aufbewahrung des Abfrageprotokolls wirklich ändern? Wenn Sie den Zeitabstand verringern, gehen einige Daten verloren.",
+    "query_log_retention_confirm": "Möchten Sie die Abfrageprotokollrotation wirklich ändern? Wenn Sie den Intervallwert verringern, gehen einige Daten verloren",
     "anonymize_client_ip": "Client-IP anonymisieren",
     "anonymize_client_ip_desc": "Vollständige IP-Adresse des Clients nicht in Protokollen und Statistiken speichern",
     "dns_config": "DNS-Serverkonfiguration",
@@ -668,5 +668,11 @@
     "disable_notify_for_hours": "Schutz für {{count}} Stunde deaktivieren",
     "disable_notify_for_hours_plural": "Schutz für {{count}} Stunden deaktivieren",
     "disable_notify_until_tomorrow": "Schutz bis morgen deaktivieren",
-    "enable_protection_timer": "Der Schutz wird in {{time}} wieder aktiviert"
+    "enable_protection_timer": "Der Schutz wird in {{time}} wieder aktiviert",
+    "custom_retention_input": "Rückhaltezeit in Stunden eingeben",
+    "custom_rotation_input": "Rotation in Stunden eingeben",
+    "protection_section_label": "Schutz",
+    "log_and_stats_section_label": "Abfrageprotokoll und Statistik",
+    "ignore_query_log": "Diesen Client im Abfrageprotokoll ignorieren",
+    "ignore_statistics": "Diesen Client in der Statistik ignorieren"
 }

client/src/__locales/es.json

@@ -257,12 +257,12 @@
     "query_log_cleared": "El registro de consultas se ha borrado correctamente",
     "query_log_updated": "El registro de consultas se ha actualizado correctamente",
     "query_log_clear": "Borrar registros de consultas",
-    "query_log_retention": "Retención de registros de consultas",
+    "query_log_retention": "Rotanción de registros de consultas",
     "query_log_enable": "Habilitar registro",
     "query_log_configuration": "Configuración de registros",
     "query_log_disabled": "El registro de consultas está deshabilitado y se puede configurar en la <0>configuración</0>",
     "query_log_strict_search": "Usar comillas dobles para una búsqueda estricta",
-    "query_log_retention_confirm": "¿Estás seguro de que deseas cambiar la retención del registro de consultas? Si disminuye el valor del intervalo, se perderán algunos datos",
+    "query_log_retention_confirm": "¿Está seguro de que deseas cambiar la rotación del registro de consultas? Si reduces el valor del intervalo, se perderán algunos datos",
     "anonymize_client_ip": "Anonimizar IP del cliente",
     "anonymize_client_ip_desc": "No guarda la dirección IP completa del cliente en registros o estadísticas",
     "dns_config": "Configuración del servidor DNS",
@@ -668,5 +668,11 @@
     "disable_notify_for_hours": "Desactivar la protección por {{count}} hora",
     "disable_notify_for_hours_plural": "Desactivar la protección por {{count}} horas",
     "disable_notify_until_tomorrow": "Desactivar la protección hasta mañana",
-    "enable_protection_timer": "La protección se activará en {{time}}"
+    "enable_protection_timer": "La protección se activará en {{time}}",
+    "custom_retention_input": "Ingresa la retención en horas",
+    "custom_rotation_input": "Ingresa la rotación en horas",
+    "protection_section_label": "Protección",
+    "log_and_stats_section_label": "Registro de consultas y estadísticas",
+    "ignore_query_log": "Ignorar este cliente en el registro de consultas",
+    "ignore_statistics": "Ignorar este cliente en las estadísticas"
 }

client/src/__locales/fa.json

@@ -268,6 +268,8 @@
     "blocking_mode_nxdomain": "NXDOMAIN: پاسخ با کُد NXDOMAIN",
     "blocking_mode_null_ip": "Null IP: پاسخ با آدرس آی پی صفر(0.0.0.0 برای A; :: برای AAAA)",
     "blocking_mode_custom_ip": "آی پی دستی: پاسخ با آدرس آی پی دستی تنظیم شده",
+    "theme_light": "پوسته روشن",
+    "theme_dark": "پوسته تیره",
     "upstream_dns_client_desc": "اگر این فیلد را خالی نگه دارید، AdGuard Home از سرور پیکربندی شده در <0> تنظیماتDNS </0> استفاده می کند.",
     "tracker_source": "منبع ردیاب",
     "source_label": "منبع",
@@ -567,5 +569,6 @@
     "use_saved_key": "از کلید ذخیره شده قبلی استفاده کنید",
     "parental_control": "نظارت والدین",
     "safe_browsing": "وب گردی اَمن",
-    "form_error_password_length": "رمزعبور باید حداقل {{value}} کاراکتر باشد."
+    "form_error_password_length": "رمزعبور باید حداقل {{value}} کاراکتر باشد.",
+    "protection_section_label": "حفاظت"
 }

client/src/__locales/fi.json

@@ -86,7 +86,7 @@
     "request_details": "Pyynnön tiedot",
     "client_details": "Päätelaitteen tiedot",
     "details": "Yksityiskohdat",
-    "back": "Takaisin",
+    "back": "Palaa takaisin",
     "dashboard": "Tila",
     "settings": "Asetukset",
     "filters": "Suodattimet",
@@ -146,8 +146,8 @@
     "no_servers_specified": "Palvelimia ei ole määritetty",
     "general_settings": "Yleiset asetukset",
     "dns_settings": "DNS-asetukset",
-    "dns_blocklists": "DNS-estolistat",
-    "dns_allowlists": "DNS-sallittujen listat",
+    "dns_blocklists": "DNS-estot",
+    "dns_allowlists": "DNS-sallinnat",
     "dns_blocklists_desc": "AdGuard Home estää estolistalla olevat verkkotunnukset.",
     "dns_allowlists_desc": "DNS-sallittujen listalla olevat verkkotunnukset sallitaan myös silloin, jos ne ovat jollain muulla estolistalla.",
     "custom_filtering_rules": "Omat suodatussäännöt",
@@ -257,12 +257,12 @@
     "query_log_cleared": "Pyyntöhistorian tyhjennys onnistui",
     "query_log_updated": "Pyyntöhistorian päivitys onnistui",
     "query_log_clear": "Tyhjennä pyyntöhistoria",
-    "query_log_retention": "Pyyntöhistorian säilytys",
+    "query_log_retention": "Kyselylokien kierto",
     "query_log_enable": "Käytä historiaa",
     "query_log_configuration": "Historian määritys",
     "query_log_disabled": "Pyyntöhistoria ei ole käytössä. Voit ottaa sen käyttöön <0>asetuksissa</0>",
     "query_log_strict_search": "Käytä tarkalle haulle lainausmerkkejä",
-    "query_log_retention_confirm": "Haluatko varmasti muuttaa pyyntöhistoriasi säilytysaikaa? Jos lyhennät aikaa, joitakin tietoja menetetään",
+    "query_log_retention_confirm": "Haluatko varmasti muuttaa kyselylokin kiertoa? Jos pienennät intervalliarvoa, osa tiedoista menetetään",
     "anonymize_client_ip": "Piilota päätelaitteen IP-osoite",
     "anonymize_client_ip_desc": "Älä tallenna päätelaitteen täydellistä IP-osoitetta historiaan ja tilastoihin.",
     "dns_config": "DNS-palvelimen määritys",
@@ -627,7 +627,7 @@
     "cache_optimistic": "Optimistinen välimuisti",
     "cache_optimistic_desc": "Pakota AdGuard Home vastaamaan välimuistista vaikka tiedot olisivat vanhentuneet. Pyri samalla myös päivittämään tiedot.",
     "filter_category_general": "Yleiset",
-    "filter_category_security": "Turvallisuus",
+    "filter_category_security": "Tietoturva",
     "filter_category_regional": "Alueelliset",
     "filter_category_other": "Muut",
     "filter_category_general_desc": "Listat, jotka estävät seurannan ja mainokset useimmilla laitteilla",
@@ -668,5 +668,11 @@
     "disable_notify_for_hours": "Poista suojaus käytöstä {{count}} tunniksi",
     "disable_notify_for_hours_plural": "Poista suojaus käytöstä {{count}} tunniksi",
     "disable_notify_until_tomorrow": "Poista suojaus käytöstä huomiseen asti",
-    "enable_protection_timer": "Suojaus otetaan käyttöön {{time}} kuluttua"
+    "enable_protection_timer": "Suojaus otetaan käyttöön {{time}} kuluttua",
+    "custom_retention_input": "Syötä säilytysaika tunteina",
+    "custom_rotation_input": "Syötä uudistusaika tunteina",
+    "protection_section_label": "Suojaus",
+    "log_and_stats_section_label": "Kyselyhistoria ja tilastot",
+    "ignore_query_log": "Älä huomioi tätä päätettä kyselyhistoriassa",
+    "ignore_statistics": "Älä huomioi tätä päätettä tilastoissa"
 }

client/src/__locales/fr.json

@@ -257,12 +257,12 @@
     "query_log_cleared": "Le journal des requêtes a été effacé",
     "query_log_updated": "Le journal des requêtes a été mis à jour",
     "query_log_clear": "Effacer journal des requêtes",
-    "query_log_retention": "Rétention du journal des requêtes",
+    "query_log_retention": "Rotation des journaux de requêtes",
     "query_log_enable": "Activer le journal",
     "query_log_configuration": "Configuration du journal",
     "query_log_disabled": "Le journal des requêtes est désactivé et peut être configuré dans les <0>paramètres</0>",
     "query_log_strict_search": "Utilisez les doubles guillemets pour une recherche stricte",
-    "query_log_retention_confirm": "Êtes-vous sûr de vouloir modifier la rétention des journaux de requêtes ? Si vous diminuez la valeur de l'intervalle, certaines données seront perdues",
+    "query_log_retention_confirm": "Êtes-vous sûr de souhaiter modifier la rotation des journaux de requêtes ? Si vous diminuez la valeur de l'intervalle, certaines données seront perdues",
     "anonymize_client_ip": "Anonymiser l’IP du client",
     "anonymize_client_ip_desc": "Ne pas enregistrer l’adresse IP complète du client dans les journaux et statistiques",
     "dns_config": "Configuration du serveur DNS",
@@ -668,5 +668,11 @@
     "disable_notify_for_hours": "Désactiver la protection pendant {{count}} heure",
     "disable_notify_for_hours_plural": "Désactiver la protection pendant {{count}} heures",
     "disable_notify_until_tomorrow": "Désactiver la protection jusqu'à demain",
-    "enable_protection_timer": "La protection sera activée dans {{time}}"
+    "enable_protection_timer": "La protection sera activée dans {{time}}",
+    "custom_retention_input": "Saisir la rétention en heures",
+    "custom_rotation_input": "Saisir la rotation en heures",
+    "protection_section_label": "Protection",
+    "log_and_stats_section_label": "Journal des requêtes et statistiques",
+    "ignore_query_log": "Ignorer ce client dans le journal des requêtes",
+    "ignore_statistics": "Ignorer ce client dans les statistiques"
 }

client/src/__locales/hr.json

@@ -257,12 +257,12 @@
     "query_log_cleared": "Zapisnik upita je uspješno uklonjen",
     "query_log_updated": "Zapisnik upita je uspješno ažuriran",
     "query_log_clear": "Očisti zapisnik upita",
-    "query_log_retention": "Spremanje zapisnika upita",
+    "query_log_retention": "Rotacija dnevnika upita",
     "query_log_enable": "Omogući zapise",
     "query_log_configuration": "Postavke zapisa",
     "query_log_disabled": "Zapisnik upita je onemogućen i može se postaviti u <0>postavkama</0>",
     "query_log_strict_search": "Koristite dvostruke navodnike za strogo pretraživanje",
-    "query_log_retention_confirm": "Jeste li sigurni da želite promijeniti zadržavanje zapisnika upita? Ako smanjite vrijednost intervala, neki će podaci biti izgubljeni",
+    "query_log_retention_confirm": "Jeste li sigurni da želite promijeniti rotaciju dnevnika upita? Ako smanjite vrijednost intervala, neki će se podaci izgubiti",
     "anonymize_client_ip": "Anonimiraj IP klijenta",
     "anonymize_client_ip_desc": "Ne spremajte cijelu IP adresu klijenta u zapisnike i statistike",
     "dns_config": "DNS postavke poslužitelja",
@@ -668,5 +668,11 @@
     "disable_notify_for_hours": "Isključi zaštitu na {{count}} sati",
     "disable_notify_for_hours_plural": "Isključi zaštitu na {{count}} sati",
     "disable_notify_until_tomorrow": "Isključi zaštitu do sutra",
-    "enable_protection_timer": "Zaštita će biti omogućena u {{time}}"
+    "enable_protection_timer": "Zaštita će biti omogućena u {{time}}",
+    "custom_retention_input": "Unesite zadržavanje u satima",
+    "custom_rotation_input": "Unesite rotaciju u satima",
+    "protection_section_label": "Zaštita",
+    "log_and_stats_section_label": "Zapisnik upita i statistika",
+    "ignore_query_log": "Zanemari ovog klijenta u zapisniku upita",
+    "ignore_statistics": "Ignorirajte ovog klijenta u statistici"
 }

client/src/__locales/hu.json

@@ -642,5 +642,6 @@
     "anonymizer_notification": "<0>Megjegyzés:</0> Az IP anonimizálás engedélyezve van. Az <1>Általános beállításoknál letilthatja</1> .",
     "confirm_dns_cache_clear": "Biztos benne, hogy törölni szeretné a DNS-gyorsítótárat?",
     "cache_cleared": "A DNS gyorsítótár sikeresen törlődött",
-    "clear_cache": "Gyorsítótár törlése"
+    "clear_cache": "Gyorsítótár törlése",
+    "protection_section_label": "Védelem"
 }

client/src/__locales/id.json

@@ -641,5 +641,6 @@
     "anonymizer_notification": "<0>Catatan:</0> Anonimisasi IP diaktifkan. Anda dapat menonaktifkannya di <1>Pengaturan umum</1> .",
     "confirm_dns_cache_clear": "Apakah Anda yakin ingin menghapus cache DNS?",
     "cache_cleared": "Cache DNS berhasil dibersihkan",
-    "clear_cache": "Hapus cache"
+    "clear_cache": "Hapus cache",
+    "protection_section_label": "Perlindungan"
 }

client/src/__locales/it.json

@@ -257,12 +257,12 @@
     "query_log_cleared": "Il registro richieste è stato correttamente cancellato",
     "query_log_updated": "Il registro richieste è stato correttamente aggiornato",
     "query_log_clear": "Cancella registri richieste",
-    "query_log_retention": "Conservazione dei registri richieste",
+    "query_log_retention": "Rotazione dei registri richieste",
     "query_log_enable": "Attiva registro",
     "query_log_configuration": "Configurazione registri",
     "query_log_disabled": "Il registro richieste è stato disattivato e può essere configurata dalle <0>impostazioni</0>",
     "query_log_strict_search": "Utilizzare le doppie virgolette per una ricerca precisa",
-    "query_log_retention_confirm": "Sei sicuro di voler modificare il registro delle richieste? Se il valore di intervallo dovesse diminuire, alcuni dati andranno persi",
+    "query_log_retention_confirm": "Sei sicuro di voler modificare il registro delle richieste? Se si riduce il valore dell'intervallo, alcuni dati andranno persi",
     "anonymize_client_ip": "Anonimizza client IP",
     "anonymize_client_ip_desc": "Non salvare l'indirizzo IP completo del client nel registro o nelle statistiche",
     "dns_config": "Configurazione server DNS",
@@ -668,5 +668,11 @@
     "disable_notify_for_hours": "Disattiva la protezione per {{count}} ora",
     "disable_notify_for_hours_plural": "Disattiva la protezione per {{count}} ore",
     "disable_notify_until_tomorrow": "Disattiva la protezione fino a domani",
-    "enable_protection_timer": "La protezione verrà attivata in {{time}}"
+    "enable_protection_timer": "La protezione verrà attivata in {{time}}",
+    "custom_retention_input": "Inserisci la conservazione in ore",
+    "custom_rotation_input": "Inserisci la rotazione in ore",
+    "protection_section_label": "Protezione",
+    "log_and_stats_section_label": "Registro richieste e statistiche",
+    "ignore_query_log": "Ignora questo client nel registro delle richieste",
+    "ignore_statistics": "Ignora questo cliente nelle statistiche"
 }

client/src/__locales/ja.json

@@ -257,12 +257,12 @@
     "query_log_cleared": "クエリ・ログの消去に成功しました",
     "query_log_updated": "クエリ・ログの更新が成功しました",
     "query_log_clear": "クエリ・ログを消去する",
-    "query_log_retention": "クエリ・ログの保持",
+    "query_log_retention": "クエリ・ログのローテーション",
     "query_log_enable": "ログを有効にする",
     "query_log_configuration": "ログ設定",
     "query_log_disabled": "クエリ・ログは無効になっており、<0>設定</0>で構成できます",
     "query_log_strict_search": "完全一致検索には二重引用符を使用します",
-    "query_log_retention_confirm": "クエリ・ログの保持を変更してもよろしいですか？ 期間を短くすると、一部のデータが失われます",
+    "query_log_retention_confirm": "クエリ・ログのローテーションを変更してもよろしいですか？ 間隔の値を減らすと、一部のデータが失われます",
     "anonymize_client_ip": "クライアントIPを匿名化する",
     "anonymize_client_ip_desc": "ログと統計にクライアントのフルIPアドレスを保存しないようにします。",
     "dns_config": "DNSサーバ設定",
@@ -668,5 +668,11 @@
     "disable_notify_for_hours": "保護を {{count}} 時間無効にする",
     "disable_notify_for_hours_plural": "保護を {{count}} 時間無効にする",
     "disable_notify_until_tomorrow": "明日まで保護を無効にする",
-    "enable_protection_timer": "保護は後 {{time}} で有効になります"
+    "enable_protection_timer": "保護は後 {{time}} で有効になります",
+    "custom_retention_input": "保持期間を入力してください（時間単位）",
+    "custom_rotation_input": "ローテーションを入力してください（時間単位）",
+    "protection_section_label": "AdGuardによる保護",
+    "log_and_stats_section_label": "クエリ・ログと統計情報",
+    "ignore_query_log": "クエリ・ログでこのクライアントを無視する",
+    "ignore_statistics": "統計でこのクライアントを無視する"
 }

client/src/__locales/ko.json

@@ -257,12 +257,12 @@
     "query_log_cleared": "쿼리 로그를 성공적으로 초기화했습니다",
     "query_log_updated": "질의 로그가 성공적으로 업데이트되었습니다",
     "query_log_clear": "쿼리 로그 비우기",
-    "query_log_retention": "쿼리 로그 저장 기간",
+    "query_log_retention": "쿼리 로그 로테이션",
     "query_log_enable": "로그 활성화",
     "query_log_configuration": "로그 구성",
     "query_log_disabled": "쿼리 로그가 비활성화되어 있으며 <0>설정</0>에서 설정할 수 있습니다",
     "query_log_strict_search": "검색을 제한하려면 쌍따옴표를 사용해주세요",
-    "query_log_retention_confirm": "정말로 쿼리 로그 저장 기간을 변경하시겠습니까? 저장 주기를 낮출 경우, 일부 데이터가 손실됩니다",
+    "query_log_retention_confirm": "쿼리 로그 로테이션을 변경하시겠습니까? 간격 값을 줄이면 일부 데이터가 손실됩니다.",
     "anonymize_client_ip": "클라이언트 IP 익명화",
     "anonymize_client_ip_desc": "클라이언트의 전체 IP 주소를 로그와 통계에 저장하저장하지 마세요",
     "dns_config": "DNS 서버 설정",
@@ -668,5 +668,11 @@
     "disable_notify_for_hours": "{{count}}시간 동안 보호 기능 비활성화",
     "disable_notify_for_hours_plural": "{{count}}시간 동안 보호 기능 비활성화",
     "disable_notify_until_tomorrow": "내일까지 보호 기능 비활성화",
-    "enable_protection_timer": "{{time}}에 보호 기능이 활성화됩니다."
+    "enable_protection_timer": "{{time}}에 보호 기능이 활성화됩니다.",
+    "custom_retention_input": "시간 단위로 보존 기간 입력",
+    "custom_rotation_input": "시간 단위로 로테이션 입력",
+    "protection_section_label": "보호",
+    "log_and_stats_section_label": "쿼리 로그 및 통계",
+    "ignore_query_log": "쿼리 로그에서 이 클라이언트 무시",
+    "ignore_statistics": "통계에서 이 클라이언트 무시"
 }

client/src/__locales/nl.json

@@ -257,12 +257,12 @@
     "query_log_cleared": "Het query logboek is succesvol geleegd",
     "query_log_updated": "Het query logboek is succesvol bijgewerkt",
     "query_log_clear": "Leeg query logs",
-    "query_log_retention": "Query logs bewaartermijn",
+    "query_log_retention": "Query logs rotatie",
     "query_log_enable": "Log bestanden inschakelen",
     "query_log_configuration": "Logbestanden instellingen",
     "query_log_disabled": "Het query logboek is uitgeschakeld en kan worden geconfigureerd in de <0>instellingen</0>",
     "query_log_strict_search": "Gebruik dubbele aanhalingstekens voor strikt zoeken",
-    "query_log_retention_confirm": "Weet u zeker dat u de bewaartermijn van het query logboek wilt wijzigen? Als u de intervalwaarde verlaagt, gaan sommige gegevens verloren",
+    "query_log_retention_confirm": "Weet u zeker dat u de rotatie van het querylogboek wilt wijzigen? Als u de intervalwaarde verlaagt, gaan sommige gegevens verloren",
     "anonymize_client_ip": "Cliënt IP anonimiseren",
     "anonymize_client_ip_desc": "Het volledige IP-adres van de cliënt niet opnemen in logboeken en statistiekbestanden",
     "dns_config": "DNS-server configuratie",
@@ -668,5 +668,11 @@
     "disable_notify_for_hours": "Beveiliging uitschakelen voor {{count}} uur",
     "disable_notify_for_hours_plural": "Beveiliging uitschakelen voor {{count}} uren",
     "disable_notify_until_tomorrow": "Beveiliging uitschakelen tot morgen",
-    "enable_protection_timer": "Bescherming wordt ingeschakeld over {{time}}"
+    "enable_protection_timer": "Bescherming wordt ingeschakeld over {{time}}",
+    "custom_retention_input": "Voer retentie in uren in",
+    "custom_rotation_input": "Voer rotatie in uren in",
+    "protection_section_label": "Bescherming",
+    "log_and_stats_section_label": "Aanvragenlogboek en statistieken",
+    "ignore_query_log": "Deze client negeren in het aanvragenlogboek",
+    "ignore_statistics": "Deze client negeren in de statistieken"
 }

client/src/__locales/no.json

@@ -282,6 +282,8 @@
     "blocking_mode_null_ip": "Null IP: Svar med en 0-IP-adresse (0.0.0.0 for A; :: for AAAA)",
     "blocking_mode_custom_ip": "Tilpasset IP: Svar med en manuelt valgt IP-adresse",
     "theme_auto": "Auto",
+    "theme_light": "Lyst tema",
+    "theme_dark": "Mørkt tema",
     "upstream_dns_client_desc": "Hvis dette feltet holdes tomt, vil AdGuard Home bruke tjenerne som er satt opp i <0>DNS-innstillingene</0>.",
     "tracker_source": "Sporerkilde",
     "source_label": "Kilde",
@@ -614,5 +616,6 @@
     "use_saved_key": "Bruk den tidligere lagrede nøkkelen",
     "parental_control": "Foreldrekontroll",
     "safe_browsing": "Sikker surfing",
-    "served_from_cache": "{{value}} <i>(formidlet fra mellomlageret)</i>"
+    "served_from_cache": "{{value}} <i>(formidlet fra mellomlageret)</i>",
+    "protection_section_label": "Beskyttelse"
 }

client/src/__locales/pl.json

@@ -167,6 +167,7 @@
     "enabled_parental_toast": "Włączona Kontrola Rodzicielska",
     "disabled_safe_search_toast": "Wyłączone bezpieczne wyszukiwanie",
     "enabled_save_search_toast": "Włączone bezpieczne wyszukiwanie",
+    "updated_save_search_toast": "Zaktualizowano ustawienia bezpiecznego wyszukiwania",
     "enabled_table_header": "Włączone",
     "name_table_header": "Nazwa",
     "list_url_table_header": "Adres URL listy",
@@ -221,7 +222,7 @@
     "all_lists_up_to_date_toast": "Wszystkie listy są już aktualne",
     "updated_upstream_dns_toast": "Serwery nadrzędne zostały pomyślnie zapisane",
     "dns_test_ok_toast": "Określone serwery DNS działają poprawnie",
-    "dns_test_not_ok_toast": "Serwer \"{{key}}\": nie można go użyć, sprawdź, czy napisałeś go poprawnie",
+    "dns_test_not_ok_toast": "Serwer \"{{key}}\": nie może być użyte, sprawdź, czy zapisano go poprawnie",
     "dns_test_warning_toast": "Upstream \"{{key}}\" nie odpowiada na zapytania testowe i może nie działać prawidłowo",
     "unblock": "Odblokuj",
     "block": "Zablokuj",
@@ -256,12 +257,12 @@
     "query_log_cleared": "Dziennik zapytań został pomyślnie wyczyszczony",
     "query_log_updated": "Dziennik zapytań został zaktualizowany",
     "query_log_clear": "Wyczyść dzienniki zapytań",
-    "query_log_retention": "Przechowywanie dzienników zapytań",
+    "query_log_retention": "Rotacja dzienników zapytań",
     "query_log_enable": "Włącz dziennik",
     "query_log_configuration": "Konfiguracja dzienników",
     "query_log_disabled": "Dziennik zapytań jest wyłączony i można go skonfigurować w <0>ustawieniach</0>",
     "query_log_strict_search": "Używaj podwójnych cudzysłowów do ścisłego wyszukiwania",
-    "query_log_retention_confirm": "Czy na pewno chcesz zmienić sposób przechowywania dziennika zapytań? Jeśli zmniejszysz wartość interwału, niektóre dane zostaną utracone",
+    "query_log_retention_confirm": "Czy na pewno chcesz zmienić rotację dziennika zapytań? Jeśli zmniejszysz wartość interwału, niektóre dane zostaną utracone",
     "anonymize_client_ip": "Anonimizuj adres IP klienta",
     "anonymize_client_ip_desc": "Nie zapisuj pełnego adresu IP w dziennikach i statystykach",
     "dns_config": "Konfiguracja serwera DNS",
@@ -290,6 +291,8 @@
     "rate_limit": "Limit ilościowy",
     "edns_enable": "Włącz podsieć klienta EDNS",
     "edns_cs_desc": "Dodaj opcję podsieci klienta EDNS (ECS) do żądań nadrzędnych i rejestruj wartości wysyłane przez klientów w dzienniku zapytań.",
+    "edns_use_custom_ip": "Użyj niestandardowego adresu IP dla EDNS",
+    "edns_use_custom_ip_desc": "Zezwól na użycie niestandardowego adresu IP dla EDNS",
     "rate_limit_desc": "Liczba żądań na sekundę dozwolona na klienta. Ustawienie wartości 0 oznacza brak ograniczeń.",
     "blocking_ipv4_desc": "Adres IP, który ma zostać zwrócony w przypadku zablokowanego żądania A",
     "blocking_ipv6_desc": "Adres IP, który ma zostać zwrócony w przypadku zablokowanego żądania AAAA",
@@ -343,7 +346,7 @@
     "install_devices_windows_list_2": "Przejdź do kategorii Sieć i Internet, a następnie do Centrum sieci i udostępniania.",
     "install_devices_windows_list_3": "W lewym panelu kliknij \"Zmień ustawienia adaptera\".",
     "install_devices_windows_list_4": "Kliknij prawym przyciskiem myszy aktywne połączenie i wybierz Właściwości.",
-    "install_devices_windows_list_5": "Znajdź na liście \"Protokół internetowy w wersji 4 (TCP/IPv4)\" (lub w przypadku IPv6 \"Protokół internetowy w wersji 6 (TCP/IPv6)\"), zaznacz go i ponownie kliknij na Właściwości.",
+    "install_devices_windows_list_5": "Znajdź na liście \"Protokół internetowy w wersji 4 (TCP/IPv4)\" (lub w przypadku IPv6 \"Protokół internetowy w wersji 6 (TCP/IPv6)\"), zaznacz go i ponownie kliknij Właściwości.",
     "install_devices_windows_list_6": "Wybierz opcję \"Użyj następujących adresów serwerów DNS\" i wprowadź adresy serwerów AdGuard Home.",
     "install_devices_macos_list_1": "Kliknij ikonę Apple i przejdź do Preferencje systemowe.",
     "install_devices_macos_list_2": "Kliknij Sieć.",
@@ -393,7 +396,7 @@
     "encryption_issuer": "Zgłaszający",
     "encryption_hostnames": "Nazwy hostów",
     "encryption_reset": "Czy na pewno chcesz zresetować ustawienia szyfrowania?",
-    "encryption_warning": "Uwaga!",
+    "encryption_warning": "Uwaga",
     "topline_expiring_certificate": "Twój certyfikat SSL wkrótce wygaśnie. Zaktualizuj <0>Ustawienia szyfrowania</0>.",
     "topline_expired_certificate": "Twój certyfikat SSL wygasł. Zaktualizuj <0>Ustawienia szyfrowania</0>.",
     "form_error_port_range": "Wpisz numer portu z zakresu 80-65535",
@@ -523,6 +526,10 @@
     "statistics_retention_confirm": "Czy chcesz zmienić sposób przechowania statystyk? Jeżeli obniżysz wartość interwału, niektóre dane będą utracone",
     "statistics_cleared": "Statystyki zostały pomyślnie wyczyszczone",
     "statistics_enable": "Włącz statystyki",
+    "ignore_domains": "Ignorowane domeny (każda w nowym wierszu)",
+    "ignore_domains_title": "Ignorowane domeny",
+    "ignore_domains_desc_stats": "Zapytania dla tych domen nie są zapisywane do statystyk",
+    "ignore_domains_desc_query": "Zapytania dla tych domen nie są zapisywane do dziennika",
     "interval_hours": "{{count}} godzina",
     "interval_hours_plural": "{{count}} godziny",
     "filters_configuration": "Konfiguracja filtrów",
@@ -535,7 +542,7 @@
     "password_placeholder": "Wpisz hasło",
     "sign_in": "Zaloguj się",
     "sign_out": "Wyloguj się",
-    "forgot_password": "Zapomniałeś hasła?",
+    "forgot_password": "Zapomniano hasła?",
     "forgot_password_desc": "Wykonaj <0>te kroki</0>, aby utworzyć nowe hasło do konta użytkownika.",
     "location": "Lokalizacja",
     "orgname": "Nazwa firmy",
@@ -642,5 +649,30 @@
     "anonymizer_notification": "<0>Uwaga:</0> Anonimizacja IP jest włączona. Możesz ją wyłączyć w <1>Ustawieniach ogólnych</1>.",
     "confirm_dns_cache_clear": "Czy na pewno chcesz wyczyścić pamięć podręczną DNS?",
     "cache_cleared": "Pamięć podręczna DNS została pomyślnie wyczyszczona",
-    "clear_cache": "Wyczyść pamięć podręczną"
+    "clear_cache": "Wyczyść pamięć podręczną",
+    "make_static": "Ustaw adres statyczny",
+    "theme_auto_desc": "Automatycznie (na podstawie schematu kolorów Twojego urządzenia)",
+    "theme_dark_desc": "Ciemny motyw",
+    "theme_light_desc": "Jasny motyw",
+    "disable_for_seconds": "Na {{count}} sekundę",
+    "disable_for_seconds_plural": "Na {{count}} sekund",
+    "disable_for_minutes": "Na {{count}} minutę",
+    "disable_for_minutes_plural": "Na {{count}} minut",
+    "disable_for_hours": "Na {{count}} godzinę",
+    "disable_for_hours_plural": "Na {{count}} godziny",
+    "disable_until_tomorrow": "Do jutra",
+    "disable_notify_for_seconds": "Wyłącz ochronę na {{count}} sekundę",
+    "disable_notify_for_seconds_plural": "Wyłącz ochronę na {{count}} sekund",
+    "disable_notify_for_minutes": "Wyłącz ochronę na {{count}} minutę",
+    "disable_notify_for_minutes_plural": "Wyłącz ochronę na {{count}} minut",
+    "disable_notify_for_hours": "Wyłącz ochronę na {{count}} godzinę",
+    "disable_notify_for_hours_plural": "Wyłącz ochronę na {{count}} godziny",
+    "disable_notify_until_tomorrow": "Wyłącz ochronę do jutra",
+    "enable_protection_timer": "Ochrona zostanie włączona za {{time}}",
+    "custom_retention_input": "Wprowadź retencję w godzinach",
+    "custom_rotation_input": "Wprowadź rotację w godzinach",
+    "protection_section_label": "Ochrona",
+    "log_and_stats_section_label": "Dziennik zapytań i statystyki",
+    "ignore_query_log": "Zignoruj tego klienta w dzienniku zapytań",
+    "ignore_statistics": "Ignoruj tego klienta w statystykach"
 }

client/src/__locales/pt-br.json

@@ -257,12 +257,12 @@
     "query_log_cleared": "O registro de consulta foi limpo com sucesso",
     "query_log_updated": "O registro da consulta foi atualizado com sucesso",
     "query_log_clear": "Limpar registros de consulta",
-    "query_log_retention": "Arquivamento de registros de consultas",
+    "query_log_retention": "Rotação de registros de consulta",
     "query_log_enable": "Ativar registro",
     "query_log_configuration": "Configuração de registros",
     "query_log_disabled": "O registro de consulta está desativado e pode ser configurado em <0>configurações</0>",
     "query_log_strict_search": "Use aspas duplas para uma pesquisa mais criteriosa",
-    "query_log_retention_confirm": "Você tem certeza de que deseja alterar o arquivamento do registro de consulta? Se diminuir o valor de intervalo, alguns dados serão perdidos",
+    "query_log_retention_confirm": "Tem a certeza de que quer alterar a rotação do registo de consulta? Se diminuir o valor do intervalo, alguns dados serão perdidos",
     "anonymize_client_ip": "Tornar anônimo o IP do cliente",
     "anonymize_client_ip_desc": "Não salva o endereço de IP completo do cliente em registros ou estatísticas",
     "dns_config": "Configuração do servidor DNS",
@@ -529,7 +529,7 @@
     "ignore_domains": "Domínios ignorados (separados por nova linha)",
     "ignore_domains_title": "Domínios ignorados",
     "ignore_domains_desc_stats": "As consultas para esses domínios não são gravadas nas estatísticas",
-    "ignore_domains_desc_query": "As consultas para esses domínios não são gravadas no log de consulta",
+    "ignore_domains_desc_query": "As consultas para esses domínios não são gravadas no registro de consulta",
     "interval_hours": "{{count}} hora",
     "interval_hours_plural": "{{count}} horas",
     "filters_configuration": "Configuração de filtros",
@@ -668,5 +668,11 @@
     "disable_notify_for_hours": "Desativar proteção por {{count}} hora",
     "disable_notify_for_hours_plural": "Desativar proteção por {{count}} horas",
     "disable_notify_until_tomorrow": "Desativar a proteção até amanhã",
-    "enable_protection_timer": "A proteção será ativada em {{time}}"
+    "enable_protection_timer": "A proteção será ativada em {{time}}",
+    "custom_retention_input": "Insira a retenção em horas",
+    "custom_rotation_input": "Insira a rotação em horas",
+    "protection_section_label": "Proteção",
+    "log_and_stats_section_label": "Registro de consultas e estatísticas",
+    "ignore_query_log": "Ignorar este cliente no registo de consultas",
+    "ignore_statistics": "Ignorar este cliente nas estatísticas"
 }

client/src/__locales/pt-pt.json

@@ -257,12 +257,12 @@
     "query_log_cleared": "O registo de consulta foi limpo com sucesso",
     "query_log_updated": "O registo da consulta foi atualizado com sucesso",
     "query_log_clear": "Limpar registos de consulta",
-    "query_log_retention": "Retenção de registos de consulta",
+    "query_log_retention": "Rotação de registros de consulta",
     "query_log_enable": "Ativar registo",
     "query_log_configuration": "Definições do registo",
     "query_log_disabled": "O registo de consulta está desativado e pode ser configurado em <0>definições</0>",
     "query_log_strict_search": "Usar aspas duplas para uma pesquisa rigorosa",
-    "query_log_retention_confirm": "Tem a certeza de que deseja alterar a retenção do registo de consulta? Se diminuir o valor do intervalo, alguns dados serão perdidos",
+    "query_log_retention_confirm": "Tem a certeza de que quer alterar a rotação do registo de consulta? Se diminuir o valor do intervalo, alguns dados serão perdidos",
     "anonymize_client_ip": "Tornar anónimo o IP do cliente",
     "anonymize_client_ip_desc": "Não gurda o endereço de IP completo do cliente em registo ou estatísticas",
     "dns_config": "Definição do servidor DNS",
@@ -529,7 +529,7 @@
     "ignore_domains": "Domínios ignorados (separados por nova linha)",
     "ignore_domains_title": "Domínios ignorados",
     "ignore_domains_desc_stats": "As consultas para estes domínios não aparecem nas estatísticas",
-    "ignore_domains_desc_query": "As consultas para estes domínios nãoaparecem no registo de consultas",
+    "ignore_domains_desc_query": "As consultas para estes domínios não aparecem no registo de consultas",
     "interval_hours": "{{count}} hora",
     "interval_hours_plural": "{{count}} horas",
     "filters_configuration": "Definição dos filtros",
@@ -668,5 +668,11 @@
     "disable_notify_for_hours": "Desativar proteção por {{count}} hora",
     "disable_notify_for_hours_plural": "Desativar proteção por {{count}} horas",
     "disable_notify_until_tomorrow": "Desativar a proteção até amanhã",
-    "enable_protection_timer": "A proteção será habilitada em {{time}}"
+    "enable_protection_timer": "A proteção será habilitada em {{time}}",
+    "custom_retention_input": "Insira a retenção em horas",
+    "custom_rotation_input": "Insira a rotação em horas",
+    "protection_section_label": "Proteção",
+    "log_and_stats_section_label": "Log de consulta e estatísticas",
+    "ignore_query_log": "Ignorar este cliente no log de consulta",
+    "ignore_statistics": "Ignorar este cliente nas estatísticas"
 }

client/src/__locales/ro.json

@@ -642,5 +642,6 @@
     "anonymizer_notification": "<0>Nota:</0> Anonimizarea IP este activată. Puteți să o dezactivați în <1>Setări generale</1>.",
     "confirm_dns_cache_clear": "Sunteți sigur că doriți să ștergeți memoria cache DNS?",
     "cache_cleared": "Cache-ul DNS a fost golit cu succes",
-    "clear_cache": "Goliți memoria cache"
+    "clear_cache": "Goliți memoria cache",
+    "protection_section_label": "Protecție"
 }

client/src/__locales/ru.json

@@ -257,12 +257,12 @@
     "query_log_cleared": "Журнал запросов успешно очищен",
     "query_log_updated": "Журнал запросов успешно обновлён",
     "query_log_clear": "Очистить журнал запросов",
-    "query_log_retention": "Сохранение журнала запросов",
+    "query_log_retention": "Частота ротации журнала запросов",
     "query_log_enable": "Включить журнал",
     "query_log_configuration": "Настройка журнала",
     "query_log_disabled": "Журнал запросов выключен, его можно включить в <0>настройках</0>",
     "query_log_strict_search": "Используйте двойные кавычки для строгого поиска",
-    "query_log_retention_confirm": "Вы уверены, что хотите изменить срок хранения запросов? При сокращении интервала данные могут быть утеряны",
+    "query_log_retention_confirm": "Вы уверены, что хотите изменить частоту ротации журнала запросов? При сокращении срока данные могут быть утеряны",
     "anonymize_client_ip": "Анонимизировать IP-адрес клиента",
     "anonymize_client_ip_desc": "Не сохранять полный IP-адрес клиента в журналах и статистике",
     "dns_config": "Настройки DNS-сервера",
@@ -668,5 +668,11 @@
     "disable_notify_for_hours": "Отключить защиту на {{count}} час",
     "disable_notify_for_hours_plural": "Отключить защиту на {{count}} часов",
     "disable_notify_until_tomorrow": "Отключить защиту до завтра",
-    "enable_protection_timer": "Защита будет включена в {{time}}"
+    "enable_protection_timer": "Защита будет включена в {{time}}",
+    "custom_retention_input": "Введите срок хранения в часах",
+    "custom_rotation_input": "Введите частоту ротации в часах",
+    "protection_section_label": "Защита",
+    "log_and_stats_section_label": "Журнал запросов и статистика",
+    "ignore_query_log": "Игнорировать этого клиента в журнале запросов",
+    "ignore_statistics": "Игнорировать этого клиента в статистике"
 }

client/src/__locales/sk.json

@@ -257,12 +257,12 @@
     "query_log_cleared": "Denník dopytov bol úspešne vymazaný",
     "query_log_updated": "Denník dopytov bol úspešne aktualizovaný",
     "query_log_clear": "Vymazať denníky dopytov",
-    "query_log_retention": "Obdobie záznamu denníka dopytov",
+    "query_log_retention": "Rotácia denníkov dopytov",
     "query_log_enable": "Zapnúť denník",
     "query_log_configuration": "Konfigurácia denníka",
     "query_log_disabled": "Protokol dopytov je vypnutý a možno ho nakonfigurovať v <0>nastaveniach</0>",
     "query_log_strict_search": "Na prísne vyhľadávanie použite dvojité úvodzovky",
-    "query_log_retention_confirm": "Naozaj chcete zmeniť uchovávanie denníku dopytov? Ak znížite hodnotu intervalu, niektoré údaje sa stratia",
+    "query_log_retention_confirm": "Naozaj chcete zmeniť rotáciu denníka dopytov? Ak znížite hodnotu intervalu, niektoré údaje sa stratia",
     "anonymize_client_ip": "Anonymizujte IP klienta",
     "anonymize_client_ip_desc": "Neukladať úplnú IP adresu klienta do protokolov a štatistík",
     "dns_config": "Konfigurácia DNS servera",
@@ -668,5 +668,11 @@
     "disable_notify_for_hours": "Vypnite ochranu na {{count}} hodinu",
     "disable_notify_for_hours_plural": "Vypnite ochranu na {{count}} hodín",
     "disable_notify_until_tomorrow": "Vypnúť ochranu do zajtra",
-    "enable_protection_timer": "Ochrana bude zapnutá o {{time}}"
+    "enable_protection_timer": "Ochrana bude zapnutá o {{time}}",
+    "custom_retention_input": "Zadajte retenciu v hodinách",
+    "custom_rotation_input": "Zadajte rotáciu v hodinách",
+    "protection_section_label": "Ochrana",
+    "log_and_stats_section_label": "Protokol dopytov a štatistiky",
+    "ignore_query_log": "Ignorovať tohto klienta v denníku dopytov",
+    "ignore_statistics": "Ignorovanie tohto klienta v štatistikách"
 }

client/src/__locales/sl.json

@@ -257,12 +257,12 @@
     "query_log_cleared": "Dnevnik poizvedb je uspešno izbrisan",
     "query_log_updated": "Dnevnik poizvedb je bil uspešno posodobljen",
     "query_log_clear": "Počisti dnevnike poizvedb",
-    "query_log_retention": "Zadrževanje dnevnikov poizvedb",
+    "query_log_retention": "Rotacija dnevnikov poizvedb",
     "query_log_enable": "Omogoči dnevni",
     "query_log_configuration": "Konfiguracija dnevnikov",
     "query_log_disabled": "Dnevnik poizvedb je onemogočen in ga je mogoče konfigurirati v <0>nastavitvah</0>",
     "query_log_strict_search": "Za strogo iskanje uporabite dvojne narekovaje",
-    "query_log_retention_confirm": "Ali ste prepričani, da želite spremeniti zadrževanje dnevnika poizvedb? Če zmanjšate vrednost intervala, bodo nekateri podatki izgubljeni",
+    "query_log_retention_confirm": "Ali ste prepričani, da želite spremeniti rotacijo dnevnika poizvedb? Če zmanjšate vrednost intervala, bodo nekateri podatki izgubljeni",
     "anonymize_client_ip": "Anonimiziraj odjemalca IP",
     "anonymize_client_ip_desc": "Ne shrani celotnega naslova IP odjemalca v dnevnikih ali statistiki",
     "dns_config": "Konfiguracija strežnika DNS",
@@ -668,5 +668,11 @@
     "disable_notify_for_hours": "Onemogoči zaščito za {{count}} uro",
     "disable_notify_for_hours_plural": "Onemogoči zaščito za {{count}} ur",
     "disable_notify_until_tomorrow": "Onemogoči zaščito do jutri",
-    "enable_protection_timer": "Zaščita bo omogočena ob {{time}}"
+    "enable_protection_timer": "Zaščita bo omogočena ob {{time}}",
+    "custom_retention_input": "Vnesite zadrževanje v urah",
+    "custom_rotation_input": "Vnesite rotacijo v urah",
+    "protection_section_label": "Zaščita",
+    "log_and_stats_section_label": "Dnevnik poizvedb in statistika",
+    "ignore_query_log": "Ignorirajte tega odjemalca v dnevniku poizvedb",
+    "ignore_statistics": "Ignoriranje tega odjemalca v statistiki"
 }

client/src/__locales/sr-cs.json

@@ -642,5 +642,6 @@
     "anonymizer_notification": "<0>Nota:</0> IP prepoznavanje je omogućeno. Možete ga onemogućiti u opštim <1>postavkama</1>.",
     "confirm_dns_cache_clear": "Želite li zaista da obrišite DNS keš?",
     "cache_cleared": "DNS keš je uspešno očišćen",
-    "clear_cache": "Obriši keš memoriju"
+    "clear_cache": "Obriši keš memoriju",
+    "protection_section_label": "Zaštita"
 }

client/src/__locales/tr.json

@@ -257,12 +257,12 @@
     "query_log_cleared": "Sorgu günlüğü başarıyla temizlendi",
     "query_log_updated": "Sorgu günlüğü başarıyla güncellendi",
     "query_log_clear": "Sorgu günlüklerini temizle",
-    "query_log_retention": "Sorgu günlüklerini sakla",
+    "query_log_retention": "Sorgu günlükleri rotasyonu",
     "query_log_enable": "Günlüğü etkinleştir",
     "query_log_configuration": "Günlük yapılandırması",
     "query_log_disabled": "Sorgu günlüğü devre dışı bırakıldı, bunu <0>ayarlar</0> kısmından yapılandırılabilirsiniz",
     "query_log_strict_search": "Tam arama için çift tırnak işareti kullanın",
-    "query_log_retention_confirm": "Sorgu günlüğü saklama süresini değiştirmek istediğinize emin misiniz? Aralık değerini azaltırsanız, bazı veriler kaybolacaktır",
+    "query_log_retention_confirm": "Sorgu günlüğü rotasyonunu değiştirmek istediğinizden emin misiniz? Aralık değerini düşürürseniz, bazı veriler kaybolacaktır.",
     "anonymize_client_ip": "İstemcinin IP adresini gizle",
     "anonymize_client_ip_desc": "İstemcinin tam IP adresini günlüklere veya istatistiklere kaydetmeyin",
     "dns_config": "DNS sunucu yapılandırması",
@@ -668,5 +668,11 @@
     "disable_notify_for_hours": "Korumayı {{count}} saatliğine devre dışı bırak",
     "disable_notify_for_hours_plural": "Korumayı {{count}} saatliğine devre dışı bırak",
     "disable_notify_until_tomorrow": "Korumayı yarına kadar devre dışı bırak",
-    "enable_protection_timer": "Koruma {{time}} içinde etkinleştirilecektir"
+    "enable_protection_timer": "Koruma {{time}} içinde etkinleştirilecektir",
+    "custom_retention_input": "Saklama süresini saat olarak girin",
+    "custom_rotation_input": "Rotasyonu saat cinsinden girin",
+    "protection_section_label": "Koruma",
+    "log_and_stats_section_label": "Sorgu günlüğü ve istatistikler",
+    "ignore_query_log": "Sorgu günlüğünde bu istemciyi yoksay",
+    "ignore_statistics": "İstatistiklerde bu istemciyi yoksay"
 }

client/src/__locales/uk.json

@@ -167,6 +167,7 @@
     "enabled_parental_toast": "«Батьківський контроль» увімкнено",
     "disabled_safe_search_toast": "Безпечний пошук вимкнено",
     "enabled_save_search_toast": "Безпечний пошук увімкнено",
+    "updated_save_search_toast": "Налаштування Безпечного пошуку оновлено",
     "enabled_table_header": "Увімкнено",
     "name_table_header": "Назва",
     "list_url_table_header": "URL списку",
@@ -290,6 +291,8 @@
     "rate_limit": "Обмеження швидкості",
     "edns_enable": "Увімкнути відправку EDNS Client Subnet",
     "edns_cs_desc": "Додавати параметр EDNS Client Subnet (ECS) до запитів до upstream-серверів, а також записувати в журнал значення, що надсилаються клієнтами.",
+    "edns_use_custom_ip": "Використання користувацької IP-адреси для EDNS",
+    "edns_use_custom_ip_desc": "Дозволити використовувати користувацьку IP-адресу для EDNS",
     "rate_limit_desc": "Кількість запитів в секунду, які може робити один клієнт. Встановлене значення «0» означатиме необмежену кількість.",
     "blocking_ipv4_desc": "IP-адреса, яку потрібно видати для заблокованого A запиту",
     "blocking_ipv6_desc": "IP-адреса, яку потрібно видати для заблокованого АААА запиту",
@@ -523,6 +526,10 @@
     "statistics_retention_confirm": "Ви впевнені, що хочете змінити тривалість статистики? Якщо зменшити значення інтервалу, деякі дані будуть втрачені",
     "statistics_cleared": "Статистику успішно очищено",
     "statistics_enable": "Увімкнути статистику",
+    "ignore_domains": "Ігноровані домени (по одному на рядок)",
+    "ignore_domains_title": "Ігноровані домени",
+    "ignore_domains_desc_stats": "Запити для цих доменів в статистику не пишуться",
+    "ignore_domains_desc_query": "Запити для цих доменів не записуються до журналу запитів",
     "interval_hours": "{{count}} година",
     "interval_hours_plural": "{{count}} годин(и)",
     "filters_configuration": "Конфігурація фільтрів",
@@ -642,5 +649,30 @@
     "anonymizer_notification": "<0>Примітка:</0> IP-анонімізацію ввімкнено. Ви можете вимкнути його в <1>Загальні налаштування</1> .",
     "confirm_dns_cache_clear": "Ви впевнені, що бажаєте очистити кеш DNS?",
     "cache_cleared": "Кеш DNS успішно очищено",
-    "clear_cache": "Очистити кеш"
+    "clear_cache": "Очистити кеш",
+    "make_static": "Зробити статичним",
+    "theme_auto_desc": "Автоматична (на основі теми вашого пристрою)",
+    "theme_dark_desc": "Темна тема",
+    "theme_light_desc": "Світла тема",
+    "disable_for_seconds": "На {{count}} секунду",
+    "disable_for_seconds_plural": "На {{count}} секунд",
+    "disable_for_minutes": "На {{count}} хвилину",
+    "disable_for_minutes_plural": "На {{count}} хвилин",
+    "disable_for_hours": "На {{count}} годину",
+    "disable_for_hours_plural": "На {{count}} годин",
+    "disable_until_tomorrow": "До завтра",
+    "disable_notify_for_seconds": "Вимкнення захисту на {{count}} секунду",
+    "disable_notify_for_seconds_plural": "Вимкнення захисту на {{count}} секунд",
+    "disable_notify_for_minutes": "Вимкнення захисту на {{count}} хвилину",
+    "disable_notify_for_minutes_plural": "Вимкнення захисту на {{count}} хвилин",
+    "disable_notify_for_hours": "Вимкнення захисту на {{count}} годину",
+    "disable_notify_for_hours_plural": "Вимкнення захисту на {{count}} годин",
+    "disable_notify_until_tomorrow": "Відключення захисту до завтра",
+    "enable_protection_timer": "Захист буде ввімкнено о {{time}}",
+    "custom_retention_input": "Введіть час в годинах",
+    "custom_rotation_input": "Введіть час в годинах",
+    "protection_section_label": "Захист",
+    "log_and_stats_section_label": "Журнал запитів і статистика",
+    "ignore_query_log": "Ігнорувати цей клієнт у журналі запитів",
+    "ignore_statistics": "Ігноруйте цей клієнт в статистиці"
 }

client/src/__locales/vi.json

@@ -642,5 +642,6 @@
     "anonymizer_notification": "<0> Lưu ý:</0> Tính năng ẩn danh IP được bật. Bạn có thể tắt nó trong <1> Cài đặt chung</1>.",
     "confirm_dns_cache_clear": "Bạn có chắc chắn muốn xóa bộ đệm ẩn DNS không?",
     "cache_cleared": "Đã xóa thành công bộ đệm DNS",
-    "clear_cache": "Xóa bộ nhớ cache"
+    "clear_cache": "Xóa bộ nhớ cache",
+    "protection_section_label": "Sự bảo vệ"
 }

client/src/__locales/zh-cn.json

@@ -257,12 +257,12 @@
     "query_log_cleared": "查询日志已成功清除",
     "query_log_updated": "已成功更新查询日志",
     "query_log_clear": "清除查询日志",
-    "query_log_retention": "查询记录保留时间",
+    "query_log_retention": "查询日志保留时间",
     "query_log_enable": "启用日志",
     "query_log_configuration": "日志配置",
     "query_log_disabled": "查询日志已禁用，在<0>这些设置</0>中能配置它们",
     "query_log_strict_search": "使用双引号进行严谨搜索",
-    "query_log_retention_confirm": "您确定要更改查询记录保留时间吗？ 如果您减少间隔时间的值， 某些数据可能会丢失。",
+    "query_log_retention_confirm": "您确定要更改查询记录保留时间吗？如果减少时间间隔数值，某些数据可能会丢失",
     "anonymize_client_ip": "匿名化客户端IP",
     "anonymize_client_ip_desc": "不要在日志和统计信息中保存客户端的完整 IP 地址",
     "dns_config": "DNS 服务配置",
@@ -668,5 +668,11 @@
     "disable_notify_for_hours": "禁用保护 {{count}} 小时",
     "disable_notify_for_hours_plural": "禁用保护 {{count}} 小时",
     "disable_notify_until_tomorrow": "禁用保护直到明天",
-    "enable_protection_timer": "保护将于 {{time}} 启用"
+    "enable_protection_timer": "保护将于 {{time}} 启用",
+    "custom_retention_input": "输入保留时间（小时）",
+    "custom_rotation_input": "输入旋转时间（小时）",
+    "protection_section_label": "防护",
+    "log_and_stats_section_label": "查询日志和统计数据",
+    "ignore_query_log": "在查询日志中忽略此客户端",
+    "ignore_statistics": "在统计数据中忽略此客户端"
 }

client/src/__locales/zh-tw.json

@@ -257,12 +257,12 @@
     "query_log_cleared": "該查詢記錄已被成功地清除",
     "query_log_updated": "該查詢記錄已被成功地更新",
     "query_log_clear": "清除查詢記錄",
-    "query_log_retention": "查詢記錄保留",
+    "query_log_retention": "查詢記錄保留時間",
     "query_log_enable": "啟用記錄",
     "query_log_configuration": "記錄配置",
     "query_log_disabled": "查詢記錄被禁用並可在<0>設定</0>中被配置",
     "query_log_strict_search": "使用雙引號於嚴謹的搜尋",
-    "query_log_retention_confirm": "您確定您想要更改查詢記錄保留嗎？如果您減少該間隔值，某些資料將被丟失",
+    "query_log_retention_confirm": "您確定要更改記錄檔保存期限嗎？如果您縮短期限部分資料可能將會遺失",
     "anonymize_client_ip": "將用戶端 IP 匿名",
     "anonymize_client_ip_desc": "不要儲存用戶端之完整的 IP 位址到記錄或統計資料裡",
     "dns_config": "DNS 伺服器配置",
@@ -668,5 +668,11 @@
     "disable_notify_for_hours": "計 {{count}} 小時禁用防護",
     "disable_notify_for_hours_plural": "計 {{count}} 小時禁用防護",
     "disable_notify_until_tomorrow": "禁用防護直到明天",
-    "enable_protection_timer": "防護將於 {{time}} 被啟用"
+    "enable_protection_timer": "防護將於 {{time}} 被啟用",
+    "custom_retention_input": "輸入保留時間（小時）",
+    "custom_rotation_input": "輸入旋轉時間（小時）",
+    "protection_section_label": "防護",
+    "log_and_stats_section_label": "查詢記錄和統計資料",
+    "ignore_query_log": "在查詢記錄中忽略此用戶端",
+    "ignore_statistics": "在統計資料中忽略此用戶端"
 }

client/src/helpers/filters/filters.js

@@ -100,6 +100,12 @@ export default {
             "homepage": "https://github.com/DandelionSprout/adfilt",
             "source": "https://adguardteam.github.io/HostlistsRegistry/assets/filter_13.txt"
         },
+        "POL_cert_polska_list_of_malicious_domains": {
+            "name": "POL: CERT Polska List of malicious domains",
+            "categoryId": "regional",
+            "homepage": "https://cert.pl/posts/2020/03/ostrzezenia_phishing/",
+            "source": "https://adguardteam.github.io/HostlistsRegistry/assets/filter_41.txt"
+        },
         "POL_polish_filters_for_pi_hole": {
             "name": "POL: Polish filters for Pi-hole",
             "categoryId": "regional",
@@ -118,6 +124,12 @@ export default {
             "homepage": "https://github.com/bkrucarci/turk-adlist",
             "source": "https://adguardteam.github.io/HostlistsRegistry/assets/filter_26.txt"
         },
+        "TUR_turkish_ad_hosts": {
+            "name": "TUR: Turkish Ad Hosts",
+            "categoryId": "regional",
+            "homepage": "https://github.com/symbuzzer/Turkish-Ad-Hosts",
+            "source": "https://adguardteam.github.io/HostlistsRegistry/assets/filter_40.txt"
+        },
         "VNM_abpvn": {
             "name": "VNM: ABPVN List",
             "categoryId": "regional",
@@ -214,6 +226,12 @@ export default {
             "homepage": "https://github.com/durablenapkin/scamblocklist",
             "source": "https://adguardteam.github.io/HostlistsRegistry/assets/filter_10.txt"
         },
+        "shadowwhisperers_malware_list": {
+            "name": "ShadowWhisperer's Malware List",
+            "categoryId": "security",
+            "homepage": "https://github.com/ShadowWhisperer/BlockLists",
+            "source": "https://adguardteam.github.io/HostlistsRegistry/assets/filter_42.txt"
+        },
         "staklerware_indicators_list": {
             "name": "Stalkerware Indicators List",
             "categoryId": "security",

client/src/helpers/trackers/trackers.json

@@ -1,5 +1,5 @@
 {
-    "timeUpdated": "2023-04-06T10:46:09.881Z",
+    "timeUpdated": "2023-06-01T00:12:12.660Z",
     "categories": {
         "0": "audio_video_player",
         "1": "comments",
@@ -19526,6 +19526,13 @@
             "companyId": "qualcomm",
             "source": "AdGuard"
         },
+        "qualcomm_location_service": {
+            "name": "Qualcomm Location Service",
+            "categoryId": 15,
+            "url": "https://www.qualcomm.com/site/privacy/services",
+            "companyId": "qualcomm",
+            "source": "AdGuard"
+        },
         "recaptcha": {
             "name": "reCAPTCHA",
             "categoryId": 8,
@@ -19533,6 +19540,55 @@
             "companyId": "google",
             "source": "AdGuard"
         },
+        "samsung": {
+            "name": "Samsung",
+            "categoryId": 8,
+            "url": "https://www.samsung.com/",
+            "companyId": "samsung",
+            "source": "AdGuard"
+        },
+        "samsungads": {
+            "name": "Samsung Ads",
+            "categoryId": 4,
+            "url": "https://www.samsung.com/business/samsungads/",
+            "companyId": "samsung",
+            "source": "AdGuard"
+        },
+        "samsungapps": {
+            "name": "Samsung Apps",
+            "categoryId": 101,
+            "url": "https://www.samsung.com/au/apps/",
+            "companyId": "samsung",
+            "source": "AdGuard"
+        },
+        "samsungmobile": {
+            "name": "Samsung Mobile",
+            "categoryId": 101,
+            "url": "https://www.samsung.com/mobile/",
+            "companyId": "samsung",
+            "source": "AdGuard"
+        },
+        "samsungpush": {
+            "name": "Samsung Push",
+            "categoryId": 8,
+            "url": null,
+            "companyId": "samsung",
+            "source": "AdGuard"
+        },
+        "samsungsds": {
+            "name": "Samsung SDS",
+            "categoryId": 10,
+            "url": "https://www.samsungsds.com/",
+            "companyId": "samsung",
+            "source": "AdGuard"
+        },
+        "samsungtv": {
+            "name": "Samsung TV",
+            "categoryId": 15,
+            "url": "https://www.samsung.com/au/tvs/",
+            "companyId": "samsung",
+            "source": "AdGuard"
+        },
         "sectigo": {
             "name": "Sectigo Limited",
             "categoryId": 5,
@@ -19589,6 +19645,13 @@
             "companyId": "telstra",
             "source": "AdGuard"
         },
+        "ubuntu": {
+            "name": "Ubuntu",
+            "categoryId": 8,
+            "url": "https://ubuntu.com/",
+            "companyId": "ubuntu",
+            "source": "AdGuard"
+        },
         "unity_ads": {
             "name": "Unity Ads",
             "categoryId": 4,
@@ -19651,6 +19714,13 @@
             "url": "https://www.3gpp.org/",
             "companyId": "3gpp",
             "source": "AdGuard"
+        },
+        "7plus": {
+            "name": "7plus",
+            "categoryId": 0,
+            "url": "https://7plus.com.au/",
+            "companyId": "7plus",
+            "source": "AdGuard"
         }
     },
     "trackerDomains": {
@@ -19843,8 +19913,8 @@
         "adfreestyle.pl": "adfreestyle",
         "adfront.org": "adfront",
         "adfrontiers.com": "adfrontiers",
-        "adgear.com": "adgear",
-        "adgrx.com": "adgear",
+        "adgear.com": "samsungads",
+        "adgrx.com": "samsungads",
         "adgebra.co.in": "adgebra",
         "adgenie.co.uk": "adgenie",
         "ad.adgile.com": "adgile",
@@ -24056,6 +24126,10 @@
         "safebrowsing.g.applimg.com": "apple",
         "applvn.com": "applovin",
         "applovin.com": "applovin",
+        "bitbucket.org": "atlassian.net",
+        "jira.com": "atlassian.net",
+        "ss-inf.net": "atlassian.net",
+        "stspg-customer.com": "statuspage.io",
         "blob.core.windows.net": "azure_blob_storage",
         "azure.com": "azure",
         "trafficmanager.net": "azure",
@@ -24063,6 +24137,21 @@
         "mobileapptracking.com": "branch",
         "bttn.io": "button",
         "cloudflare-dns.com": "cloudflare",
+        "cloudflare-dm-cmpimg.com": "cloudflare",
+        "cloudflare-ipfs.com": "cloudflare",
+        "cloudflare-quic.com": "cloudflare",
+        "cloudflare-terms-of-service-abuse.com": "cloudflare",
+        "cloudflare.tv": "cloudflare",
+        "cloudflareaccess.com": "cloudflare",
+        "cloudflareclient.com": "cloudflare",
+        "cloudflareinsights.com": "cloudflare",
+        "cloudflareok.com": "cloudflare",
+        "cloudflareportal.com": "cloudflare",
+        "cloudflareresolve.com": "cloudflare",
+        "cloudflaressl.com": "cloudflare",
+        "cloudflarestatus.com": "cloudflare",
+        "pacloudflare.com": "cloudflare",
+        "sn-cloudflare.com": "cloudflare",
         "crashlytics.com": "crashlytics",
         "phicdn.net": "digicert_trust_seal",
         "domain.glass": "domainglass",
@@ -24092,6 +24181,9 @@
         "qy.net": "iqiyi",
         "iqiyi.com": "iqiyi",
         "iq.com": "iqiyi",
+        "ironsrc.com": "ironsource",
+        "ironsrc.net": "ironsource",
+        "supersonicads.com": "ironsource",
         "karambasecurity.com": "karambasecurity",
         "kik.com": "kik",
         "apikik.com": "kik",
@@ -24121,6 +24213,23 @@
         "mozilla.com": "mozilla",
         "mozilla.net": "mozilla",
         "mozilla.org": "mozilla",
+        "flxvpn.net": "netflix",
+        "netflix.ca": "netflix",
+        "netflix.com.au": "netflix",
+        "netflix.net": "netflix",
+        "netflixdnstest1.com": "netflix",
+        "netflixdnstest10.com": "netflix",
+        "netflixdnstest2.com": "netflix",
+        "netflixdnstest3.com": "netflix",
+        "netflixdnstest4.com": "netflix",
+        "netflixdnstest5.com": "netflix",
+        "netflixdnstest6.com": "netflix",
+        "netflixdnstest7.com": "netflix",
+        "netflixdnstest8.com": "netflix",
+        "netflixdnstest9.com": "netflix",
+        "netflixinvestor.com": "netflix",
+        "netflixstudios.com": "netflix",
+        "netflixtechblog.com": "netflix",
         "nflximg.com": "netflix",
         "netify.ai": "netify",
         "nab.com": "nab",
@@ -24144,9 +24253,69 @@
         "oztam.com.au": "oztam",
         "plex.tv": "plex",
         "plex.direct": "plex",
-        "xtracloud.net": "qualcomm",
         "qualcomm.com": "qualcomm",
+        "gpsonextra.net": "qualcomm_location_service",
+        "izatcloud.net": "qualcomm_location_service",
+        "xtracloud.net": "qualcomm_location_service",
         "recaptcha.net": "recaptcha",
+        "samsungacr.com": "samsungads",
+        "samsungadhub.com": "samsungads",
+        "samsungads.com": "samsungads",
+        "samsungtifa.com": "samsungads",
+        "game-mode.net": "samsung",
+        "gos-gsp.io": "samsung",
+        "lldns.net": "samsung",
+        "pavv.co.kr": "samsung",
+        "remotesamsung.com": "samsung",
+        "samsung-gamelauncher.com": "samsung",
+        "samsung.co.kr": "samsung",
+        "samsung.com": "samsung",
+        "samsung.com.cn": "samsung",
+        "samsungcloud.com": "samsung",
+        "samsungcloudcdn.com": "samsung",
+        "samsungcloudprint.com": "samsung",
+        "samsungcloudsolution.com": "samsung",
+        "samsungcloudsolution.net": "samsung",
+        "samsungelectronics.com": "samsung",
+        "samsunghealth.com": "samsung",
+        "samsungiotcloud.com": "samsung",
+        "samsungknox.com": "samsung",
+        "samsungnyc.com": "samsung",
+        "samsungosp.com": "samsung",
+        "samsungotn.net": "samsung",
+        "samsungpositioning.com": "samsung",
+        "samsungqbe.com": "samsung",
+        "samsungrm.net": "samsung",
+        "samsungrs.com": "samsung",
+        "samsungsemi.com": "samsung",
+        "samsungsetup.com": "samsung",
+        "samsungusa.com": "samsung",
+        "secb2b.com": "samsung",
+        "smartthings.com": "samsung",
+        "ospserver.net": "samsungmobile",
+        "samsungdms.net": "samsungmobile",
+        "samsungmax.com": "samsungmobile",
+        "samsungmobile.com": "samsungmobile",
+        "secmobilesvc.com": "samsungmobile",
+        "internetat.tv": "samsungtv",
+        "samsungcloud.tv": "samsungtv",
+        "samsungsds.com": "samsungsds",
+        "push.samsungosp.com": "samsungpush",
+        "pushmessage.samsung.com": "samsungpush",
+        "scs.samsungqbe.com": "samsungpush",
+        "ssp.samsung.com": "samsungpush",
+        "aibixby.com": "samsungapps",
+        "findmymobile.samsung.com": "samsungapps",
+        "samsapps.cust.lldns.net": "samsungapps",
+        "samsung-omc.com": "samsungapps",
+        "samsungapps.com": "samsungapps",
+        "samsungdiroute.net": "samsungapps",
+        "samsungdive.com": "samsungapps",
+        "samsungdm.com": "samsungapps",
+        "samsungdmroute.com": "samsungapps",
+        "samsungmdec.com": "samsungapps",
+        "samsungvisioncloud.com": "samsungapps",
+        "sbixby.com": "samsungapps",
         "sectigo.com": "sectigo",
         "showrss.info": "showrss",
         "similarweb.io": "similarweb",
@@ -24171,6 +24340,13 @@
         "telstra.com.au": "telstra",
         "telstra.com": "telstra",
         "usertrust.com": "trustlogo",
+        "canonical.com": "ubuntu",
+        "launchpad.net": "ubuntu",
+        "launchpadcontent.net": "ubuntu",
+        "snapcraft.io": "ubuntu",
+        "snapcraftcontent.com": "ubuntu",
+        "ubuntu.com": "ubuntu",
+        "ubuntucompanyservices.co.za": "ubuntu",
         "unityads.unity3d.com": "unity_ads",
         "exp-tas.com": "vscode",
         "vscode-unpkg.net": "vscode",
@@ -24190,6 +24366,7 @@
         "yandex.kz": "yandex",
         "appmetrica.yandex.com": "yandex_appmetrica",
         "3gppnetwork.org": "3gpp",
-        "3gpp.org": "3gpp"
+        "3gpp.org": "3gpp",
+        "swm.digital": "7plus"
     }
 }

docker/dns-bind.awk

@@ -7,11 +7,10 @@
         addrs[$2] = true
         prev_line = FNR
 
-        if ($2 == "0.0.0.0" || $2 == "::") {
-            delete addrs
-            addrs["localhost"] = true
-
+        if ($2 == "0.0.0.0" || $2 == "'::'") {
             # Drop all the other addresses.
+            delete addrs
+            addrs[""] = true
             prev_line = -1
         }
     }

docker/healthcheck.sh

@@ -61,8 +61,11 @@ then
     error_exit "no DNS bindings could be retrieved from $filename"
 fi
 
+first_dns="$( echo "$dns_hosts" | head -n 1 )"
+readonly first_dns
+
 # TODO(e.burkov):  Deal with 0 port.
-case "$( echo "$dns_hosts" | head -n 1 )"
+case "$first_dns"
 in
 (*':0')
     error_exit '0 in DNS port is not supported by healthcheck'
@@ -82,8 +85,23 @@ esac
 # See https://github.com/AdguardTeam/AdGuardHome/issues/5642.
 wget --no-check-certificate "$web_url" -O /dev/null -q || exit 1
 
-echo "$dns_hosts" | while read -r host
-do
-    nslookup -type=a healthcheck.adguardhome.test. "$host" > /dev/null ||\
+test_fqdn="healthcheck.adguardhome.test."
+readonly test_fqdn
+
+# The awk script currently returns only port prefixed with colon in case of
+# unspecified address.
+case "$first_dns"
+in
+(':'*)
+    nslookup -type=a "$test_fqdn" "127.0.0.1${first_dns}" > /dev/null ||\
+    nslookup -type=a "$test_fqdn" "[::1]${first_dns}" > /dev/null ||\
         error_exit "nslookup failed for $host"
-done
+    ;;
+(*)
+    echo "$dns_hosts" | while read -r host
+    do
+        nslookup -type=a "$test_fqdn" "$host" > /dev/null ||\
+            error_exit "nslookup failed for $host"
+    done
+    ;;
+esac

go.mod

@@ -3,11 +3,12 @@ module github.com/AdguardTeam/AdGuardHome
 go 1.19
 
 require (
-	github.com/AdguardTeam/dnsproxy v0.48.3
-	github.com/AdguardTeam/golibs v0.13.2
+	github.com/AdguardTeam/dnsproxy v0.50.2
+	github.com/AdguardTeam/golibs v0.13.3
 	github.com/AdguardTeam/urlfilter v0.16.1
 	github.com/NYTimes/gziphandler v1.1.1
 	github.com/ameshkov/dnscrypt/v2 v2.2.7
+	github.com/bluele/gcache v0.0.2
 	github.com/digineo/go-ipset/v2 v2.2.1
 	github.com/dimfeld/httptreemux/v5 v5.5.0
 	github.com/fsnotify/fsnotify v1.6.0
@@ -16,24 +17,24 @@ require (
 	github.com/google/gopacket v1.1.19
 	github.com/google/renameio v1.0.1
 	github.com/google/uuid v1.3.0
-	github.com/insomniacslk/dhcp v0.0.0-20221215072855-de60144f33f8
+	github.com/insomniacslk/dhcp v0.0.0-20230516061539-49801966e6cb
 	github.com/josharian/native v1.1.1-0.20230202152459-5c7d0dd6ab86
 	github.com/kardianos/service v1.2.2
 	github.com/mdlayher/ethernet v0.0.0-20220221185849-529eae5b6118
-	github.com/mdlayher/netlink v1.7.1
-	github.com/mdlayher/packet v1.1.1
+	github.com/mdlayher/netlink v1.7.2
+	github.com/mdlayher/packet v1.1.2
 	// TODO(a.garipov): This package is deprecated; find a new one or use our
 	// own code for that.  Perhaps, use gopacket.
 	github.com/mdlayher/raw v0.1.0
-	github.com/miekg/dns v1.1.53
-	github.com/quic-go/quic-go v0.33.0
-	github.com/stretchr/testify v1.8.2
+	github.com/miekg/dns v1.1.54
+	github.com/quic-go/quic-go v0.35.1
+	github.com/stretchr/testify v1.8.4
 	github.com/ti-mo/netfilter v0.5.0
 	go.etcd.io/bbolt v1.3.7
-	golang.org/x/crypto v0.8.0
-	golang.org/x/exp v0.0.0-20230321023759-10a507213a29
-	golang.org/x/net v0.9.0
-	golang.org/x/sys v0.7.0
+	golang.org/x/crypto v0.10.0
+	golang.org/x/exp v0.0.0-20230522175609-2e198f4a06a1
+	golang.org/x/net v0.11.0
+	golang.org/x/sys v0.9.0
 	gopkg.in/natefinch/lumberjack.v2 v2.2.1
 	gopkg.in/yaml.v3 v3.0.1
 	howett.net/plist v1.0.0
@@ -44,13 +45,12 @@ require (
 	github.com/aead/poly1305 v0.0.0-20180717145839-3fee0db0b635 // indirect
 	github.com/ameshkov/dnsstamps v1.0.3 // indirect
 	github.com/beefsack/go-rate v0.0.0-20220214233405-116f4ca011a0 // indirect
-	github.com/bluele/gcache v0.0.2 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 // indirect
 	github.com/golang/mock v1.6.0 // indirect
-	github.com/google/pprof v0.0.0-20230406165453-00490a63f317 // indirect
-	github.com/mdlayher/socket v0.4.0 // indirect
-	github.com/onsi/ginkgo/v2 v2.9.2 // indirect
+	github.com/google/pprof v0.0.0-20230602150820-91b7bce49751 // indirect
+	github.com/mdlayher/socket v0.4.1 // indirect
+	github.com/onsi/ginkgo/v2 v2.10.0 // indirect
 	github.com/patrickmn/go-cache v2.1.0+incompatible // indirect
 	github.com/pierrec/lz4/v4 v4.1.17 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
@@ -60,7 +60,7 @@ require (
 	github.com/quic-go/qtls-go1-20 v0.2.2 // indirect
 	github.com/u-root/uio v0.0.0-20230305220412-3e8cd9d6bf63 // indirect
 	golang.org/x/mod v0.10.0 // indirect
-	golang.org/x/sync v0.1.0 // indirect
-	golang.org/x/text v0.9.0 // indirect
-	golang.org/x/tools v0.8.0 // indirect
+	golang.org/x/sync v0.2.0 // indirect
+	golang.org/x/text v0.10.0 // indirect
+	golang.org/x/tools v0.9.3 // indirect
 )

go.sum

@@ -1,9 +1,9 @@
-github.com/AdguardTeam/dnsproxy v0.48.3 h1:h9xgDSmd1MqsPFNApyaPVXolmSTtzOWOcfWvPeDEP6s=
-github.com/AdguardTeam/dnsproxy v0.48.3/go.mod h1:Y7g7jRTd/u7+KJ/QvnGI2PCE8vnisp6EsW47/Sz0DZw=
+github.com/AdguardTeam/dnsproxy v0.50.2 h1:p1471SsMZ6SMo7T51Olw4aNluahvMwSLMorwxYV18ts=
+github.com/AdguardTeam/dnsproxy v0.50.2/go.mod h1:CQhZTkqC8X0ID6glrtyaxgqRRdiYfn1gJulC1cZ5Dn8=
 github.com/AdguardTeam/golibs v0.4.0/go.mod h1:skKsDKIBB7kkFflLJBpfGX+G8QFTx0WKUzB6TIgtUj4=
 github.com/AdguardTeam/golibs v0.10.4/go.mod h1:rSfQRGHIdgfxriDDNgNJ7HmE5zRoURq8R+VdR81Zuzw=
-github.com/AdguardTeam/golibs v0.13.2 h1:BPASsyQKmb+b8VnvsNOHp7bKfcZl9Z+Z2UhPjOiupSc=
-github.com/AdguardTeam/golibs v0.13.2/go.mod h1:7ylQLv2Lqsc3UW3jHoITynYk6Y1tYtgEMkR09ppfsN8=
+github.com/AdguardTeam/golibs v0.13.3 h1:RT3QbzThtaLiFLkIUDS6/hlGEXrh0zYvdf4bd7UWpGo=
+github.com/AdguardTeam/golibs v0.13.3/go.mod h1:wkJ6EUsN4np/9Gp7+9QeooY9E2U2WCLJYAioLCzkHsI=
 github.com/AdguardTeam/gomitmproxy v0.2.0/go.mod h1:Qdv0Mktnzer5zpdpi5rAwixNJzW2FN91LjKJCkVbYGU=
 github.com/AdguardTeam/urlfilter v0.16.1 h1:ZPi0rjqo8cQf2FVdzo6cqumNoHZx2KPXj2yZa1A5BBw=
 github.com/AdguardTeam/urlfilter v0.16.1/go.mod h1:46YZDOV1+qtdRDuhZKVPSSp7JWWes0KayqHrKAFBdEI=
@@ -31,10 +31,9 @@ github.com/digineo/go-ipset/v2 v2.2.1 h1:k6skY+0fMqeUjjeWO/m5OuWPSZUAn7AucHMnQ1M
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@@ -152,7 +127,6 @@ github.com/tklauser/go-sysconf v0.3.9 h1:JeUVdAOWhhxVcU6Eqr/ATFHgXk/mmiItdKeJPev
 github.com/tklauser/go-sysconf v0.3.9/go.mod h1:11DU/5sG7UexIrp/O6g35hrWzu0JxlwQ3LSFUzyeuhs=
 github.com/tklauser/numcpus v0.3.0 h1:ILuRUQBtssgnxw0XXIjKUC56fgnOrFoQQ/4+DeU2biQ=
 github.com/tklauser/numcpus v0.3.0/go.mod h1:yFGUr7TUHQRAhyqBcEg0Ge34zDBAsIvJJcyE6boqnA8=
-github.com/u-root/uio v0.0.0-20221213070652-c3537552635f/go.mod h1:IogEAUBXDEwX7oR/BMmCctShYs80ql4hF0ySdzGxf7E=
 github.com/u-root/uio v0.0.0-20230305220412-3e8cd9d6bf63 h1:YcojQL98T/OO+rybuzn2+5KrD5dBwXIvYBvQ2cD3Avg=
 github.com/u-root/uio v0.0.0-20230305220412-3e8cd9d6bf63/go.mod h1:eLL9Nub3yfAho7qB0MzZizFhTU2QkLeoVsWdHtDW264=
 github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
@@ -160,11 +134,10 @@ go.etcd.io/bbolt v1.3.7 h1:j+zJOnnEjF/kyHlDDgGnVL/AIqIJPq8UoB2GSNfkUfQ=
 go.etcd.io/bbolt v1.3.7/go.mod h1:N9Mkw9X8x5fupy0IKsmuqVtoGDyxsaDlbk4Rd05IAQw=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.8.0 h1:pd9TJtTueMTVQXzk8E2XESSMQDj/U7OUu0PqJqPXQjQ=
-golang.org/x/crypto v0.8.0/go.mod h1:mRqEX+O9/h5TFCrQhkgjo2yKi0yYA+9ecGkdQoHrywE=
-golang.org/x/exp v0.0.0-20230321023759-10a507213a29 h1:ooxPy7fPvB4kwsA2h+iBNHkAbp/4JxTSwCmvdjEYmug=
-golang.org/x/exp v0.0.0-20230321023759-10a507213a29/go.mod h1:CxIveKay+FTh1D0yPZemJVgC/95VzuuOLq5Qi4xnoYc=
+golang.org/x/crypto v0.10.0 h1:LKqV2xt9+kDzSTfOhx4FrkEBcMrAgHSYgzywV9zcGmM=
+golang.org/x/crypto v0.10.0/go.mod h1:o4eNf7Ede1fv+hwOwZsTHl9EsPFO6q6ZvYR8vYfY45I=
+golang.org/x/exp v0.0.0-20230522175609-2e198f4a06a1 h1:k/i9J1pBpvlfR+9QsetwPyERsqu1GIbi967PQMq3Ivc=
+golang.org/x/exp v0.0.0-20230522175609-2e198f4a06a1/go.mod h1:V1LtkGg67GoY2N1AnLN78QLrzxkLyJw7RJb1gzOOz9w=
 golang.org/x/lint v0.0.0-20200302205851-738671d3881b/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
 golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
@@ -172,40 +145,25 @@ golang.org/x/mod v0.10.0 h1:lFO9qtOdlre5W1jxS3r/4szv2/6iXxScdzjoBMXNhYk=
 golang.org/x/mod v0.10.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/net v0.0.0-20190419010253-1f3472d942ba/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20191007182048-72f939374954/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20201010224723-4f7140c49acb/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
-golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20210316092652-d523dce5a7f4/go.mod h1:RBQZq4jEuRlivfhVLdyRGr576XBO4/greRjx4P4O3yc=
 golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
 golang.org/x/net v0.0.0-20210929193557-e81a3d93ecf6/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
-golang.org/x/net v0.9.0 h1:aWJ/m6xSmxWBx+V0XRHTlrYrPG56jKsLdTFmsSsCzOM=
-golang.org/x/net v0.9.0/go.mod h1:d48xBJpPfHeWQsugry2m+kC02ZBRGRgulfHnEXEuWns=
+golang.org/x/net v0.11.0 h1:Gi2tvZIJyBtO9SDr1q9h5hEQCp/4L2RQ+ar0qjx2oNU=
+golang.org/x/net v0.11.0/go.mod h1:2L/ixqYpgIVXmeoSA/4Lu7BzTG4KIyPIryS4IsOd1oQ=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o=
-golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.2.0 h1:PUR+T4wwASmuSTYdKjYHI5TD22Wy5ogLU5qZCOLxBrI=
+golang.org/x/sync v0.2.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190322080309-f49334f85ddc/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190411185658-b44545bcd369/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190418153312-f0ce4c0180be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190606122018-79a91cf218c4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20190826190057-c7b8b68b1456/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20191008105621-543471e840be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20201009025420-dfb3f7c4e634/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201015000850-e3ed0017c211/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20201101102859-da207088b7d1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210303074136-134d130e1a04/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210315160823-c6e025ad8005/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -219,23 +177,22 @@ golang.org/x/sys v0.0.0-20220209214540-3681064d5158/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20220622161953-175b2fd9d664/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.4.1-0.20230131160137-e7d7f63158de/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.7.0 h1:3jlCCIQZPdOYu1h8BkNvLz8Kgwtae2cagcG/VamtZRU=
-golang.org/x/sys v0.7.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.9.0 h1:KS/R3tvhPqvJvwcKfnBHJwwthS11LRhmM5D59eEXa0s=
+golang.org/x/sys v0.9.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.9.0 h1:2sjJmO8cDvYveuX97RDLsxlyUxLl+GHoLxBiRdHllBE=
-golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
+golang.org/x/text v0.10.0 h1:UpjohKhiEgNc0CSauXmwYftY1+LlaC75SJwh0SgCX58=
+golang.org/x/text v0.10.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
 golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
-golang.org/x/tools v0.8.0 h1:vSDcovVPld282ceKgDimkRSC8kpaH1dgyc9UMzlt84Y=
-golang.org/x/tools v0.8.0/go.mod h1:JxBZ99ISMI5ViVkT1tr6tdNmXeTrcpVSD3vZ1RsRdN4=
+golang.org/x/tools v0.9.3 h1:Gn1I8+64MsuTb/HpH+LmQtNas23LhUVr3rYZ0eKuaMM=
+golang.org/x/tools v0.9.3/go.mod h1:owI94Op576fPu3cIGQeHs3joujW/2Oc6MtlxbF5dfNc=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

internal/aghhttp/aghhttp.go

@@ -72,8 +72,8 @@ func WriteJSONResponse(w http.ResponseWriter, r *http.Request, resp any) (err er
 // WriteJSONResponseCode is like [WriteJSONResponse] but adds the ability to
 // redefine the status code.
 func WriteJSONResponseCode(w http.ResponseWriter, r *http.Request, code int, resp any) (err error) {
-	w.WriteHeader(code)
 	w.Header().Set(httphdr.ContentType, HdrValApplicationJSON)
+	w.WriteHeader(code)
 	err = json.NewEncoder(w).Encode(resp)
 	if err != nil {
 		Error(r, w, http.StatusInternalServerError, "encoding resp: %s", err)

internal/aghnet/dhcp_unix.go

@@ -304,7 +304,7 @@ func tryConn6(req *dhcpv6.Message, c net.PacketConn) (ok, next bool, err error)
 	if !(response.Type() == dhcpv6.MessageTypeAdvertise &&
 		msg.TransactionID == req.TransactionID &&
 		rcid != nil &&
-		cid.Equal(*rcid)) {
+		cid.Equal(rcid)) {
 
 		log.Debug("dhcpv6: received message from server doesn't match our request")
 

internal/aghnet/interfaces_windows.go

@@ -1,17 +0,0 @@
-//go:build windows
-
-package aghnet
-
-import (
-	"net"
-
-	"github.com/AdguardTeam/AdGuardHome/internal/aghos"
-)
-
-// listenPacketReusable announces on the local network address additionally
-// configuring the socket to have a reusable binding.
-func listenPacketReusable(_, _, _ string) (c net.PacketConn, err error) {
-	// TODO(e.burkov):  Check if we are able to control sockets on Windows
-	// in the same way as on Unix.
-	return nil, aghos.Unsupported("listening packet reusable")
-}

internal/aghos/service.go

@@ -0,0 +1,6 @@
+package aghos
+
+// PreCheckActionStart performs the service start action pre-check.
+func PreCheckActionStart() (err error) {
+	return preCheckActionStart()
+}

internal/aghos/service_darwin.go

@@ -0,0 +1,32 @@
+//go:build darwin
+
+package aghos
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/AdguardTeam/golibs/log"
+)
+
+// preCheckActionStart performs the service start action pre-check.  It warns
+// user that the service should be installed into Applications directory.
+func preCheckActionStart() (err error) {
+	exe, err := os.Executable()
+	if err != nil {
+		return fmt.Errorf("getting executable path: %v", err)
+	}
+
+	exe, err = filepath.EvalSymlinks(exe)
+	if err != nil {
+		return fmt.Errorf("evaluating executable symlinks: %v", err)
+	}
+
+	if !strings.HasPrefix(exe, "/Applications/") {
+		log.Info("warning: service must be started from within the /Applications directory")
+	}
+
+	return err
+}

internal/aghos/service_others.go

@@ -0,0 +1,8 @@
+//go:build !darwin
+
+package aghos
+
+// preCheckActionStart performs the service start action pre-check.
+func preCheckActionStart() (err error) {
+	return nil
+}

internal/dhcpd/README.md

@@ -1,46 +1,60 @@
-# DHCP server
+ #  Testing DHCP Server
 
 Contents:
-* [Test setup with Virtual Box](#vbox)
+ *  [Test setup with Virtual Box](#vbox)
+ *  [Quick test with DHCPTest](#dhcptest)
 
-<a id="vbox"></a>
-## Test setup with Virtual Box
+##  <a href="#vbox" id="vbox" name="vbox">Test setup with Virtual Box</a>
 
-To set up a test environment for DHCP server you need:
+   ### Prerequisites
 
-* Linux host machine
-* Virtual Box
-* Virtual machine (guest OS doesn't matter)
+To set up a test environment for DHCP server you will need:
 
-### Configure client
+ *  Linux AG Home host machine (Virtual).
+ *  Virtual Box.
+ *  Virtual machine (guest OS doesn't matter).
 
-1. Install Virtual Box and run the following command to create a Host-Only network:
+   ### Configure Virtual Box
 
-        $ VBoxManage hostonlyif create
+ 1.  Install Virtual Box and run the following command to create a Host-Only 
+     network:
 
-    You can check its status by `ip a` command.
+     ```sh
+     $ VBoxManage hostonlyif create
+     ```
+     
+     You can check its status by `ip a` command.  
 
-    You can also set up Host-Only network using Virtual Box menu:
+     You can also set up Host-Only network using Virtual Box menu: 
+     
+     ```
+     File -> Host Network Manager...
+     ```
 
-        File -> Host Network Manager...
+ 2.  Create your virtual machine and set up its network:
 
-2. Create your virtual machine and set up its network:
+     ```
+     VM Settings -> Network -> Host-only Adapter
+     ```
 
-        VM Settings -> Network -> Host-only Adapter
+ 3.  Start your VM, install an OS.  Configure your network interface to use
+     DHCP and the OS should ask for a IP address from our DHCP server.
 
-3. Start your VM, install an OS.  Configure your network interface to use DHCP and the OS should ask for a IP address from our DHCP server.
+ 4.  To see the current IP addresses on client OS you can use `ip a` command on
+     Linux or `ipconfig` on Windows.
 
-4. To see the current IP address on client OS you can use `ip a` command on Linux or `ipconfig` on Windows.
+ 5.  To force the client OS to request an IP from DHCP server again, you can
+     use `dhclient` on Linux or `ipconfig /release` on Windows.
 
-5. To force the client OS to request an IP from DHCP server again, you can use `dhclient` on Linux or `ipconfig /release` on Windows.
+   ### Configure server
 
-### Configure server
+ 1.  Edit server configuration file `AdGuardHome.yaml`, for example:
 
-1. Edit server configuration file 'AdGuardHome.yaml', for example:
-
-        dhcp:
+     ```yaml
+     dhcp:
           enabled: true
           interface_name: vboxnet0
+          local_domain_name: lan
           dhcpv4:
             gateway_ip: 192.168.56.1
             subnet_mask: 255.255.255.0
@@ -54,11 +68,29 @@ To set up a test environment for DHCP server you need:
             lease_duration: 86400
             ra_slaac_only: false
             ra_allow_slaac: false
+     ```
 
-2. Start the server
+ 2.  Start the server
 
-        ./AdGuardHome
+     ```sh
+     ./AdGuardHome -v
+     ```
 
-    There should be a message in log which shows that DHCP server is ready:
+     There should be a message in log which shows that DHCP server is ready:
 
-        [info] DHCP: listening on 0.0.0.0:67
+     ```
+     [info] DHCP: listening on 0.0.0.0:67
+     ```
+
+##  <a href="#dhcptest" id="dhcptest" name="dhcptest">Quick test with DHCPTest utility</a>
+
+   ### Prerequisites
+
+ *  [DHCP test utility][dhcptest-gh].
+
+   ### Quick test
+
+The DHCP server could be tested for DISCOVER-OFFER packets with in
+interactive mode.
+
+[dhcptest-gh]: https://github.com/CyberShadow/dhcptest

internal/dhcpd/config.go

@@ -31,8 +31,16 @@ type ServerConfig struct {
 	Conf4 V4ServerConf `yaml:"dhcpv4"`
 	Conf6 V6ServerConf `yaml:"dhcpv6"`
 
-	WorkDir    string `yaml:"-"`
-	DBFilePath string `yaml:"-"`
+	// WorkDir is used to store DHCP leases.
+	//
+	// Deprecated:  Remove it when migration of DHCP leases will not be needed.
+	WorkDir string `yaml:"-"`
+
+	// DataDir is used to store DHCP leases.
+	DataDir string `yaml:"-"`
+
+	// dbFilePath is the path to the file with stored DHCP leases.
+	dbFilePath string `yaml:"-"`
 }
 
 // DHCPServer - DHCP server interface

internal/dhcpd/conn_bsd.go

@@ -1,4 +1,4 @@
-//go:build darwin
+//go:build darwin || freebsd || openbsd
 
 package dhcpd
 

internal/dhcpd/conn_bsd_internal_test.go

@@ -1,4 +1,4 @@
-//go:build darwin
+//go:build darwin || freebsd || openbsd
 
 package dhcpd
 

internal/dhcpd/conn_linux.go

@@ -1,4 +1,4 @@
-//go:build freebsd || linux || openbsd
+//go:build linux
 
 package dhcpd
 

internal/dhcpd/conn_linux_internal_test.go

@@ -1,4 +1,4 @@
-//go:build freebsd || linux || openbsd
+//go:build linux
 
 package dhcpd
 

internal/dhcpd/db.go

@@ -5,43 +5,34 @@ package dhcpd
 import (
 	"encoding/json"
 	"fmt"
-	"net"
-	"net/netip"
 	"os"
-	"time"
 
 	"github.com/AdguardTeam/golibs/errors"
 	"github.com/AdguardTeam/golibs/log"
 	"github.com/google/renameio/maybe"
+	"golang.org/x/exp/slices"
 )
 
-const dbFilename = "leases.db"
+const (
+	// dataFilename contains saved leases.
+	dataFilename = "leases.json"
 
-type leaseJSON struct {
-	HWAddr   []byte `json:"mac"`
-	IP       []byte `json:"ip"`
-	Hostname string `json:"host"`
-	Expiry   int64  `json:"exp"`
+	// dataVersion is the current version of the stored DHCP leases structure.
+	dataVersion = 1
+)
+
+// dataLeases is the structure of the stored DHCP leases.
+type dataLeases struct {
+	// Version is the current version of the structure.
+	Version int `json:"version"`
+
+	// Leases is the list containing stored DHCP leases.
+	Leases []*Lease `json:"leases"`
 }
 
-func normalizeIP(ip net.IP) net.IP {
-	ip4 := ip.To4()
-	if ip4 != nil {
-		return ip4
-	}
-	return ip
-}
-
-// Load lease table from DB
-//
-// TODO(s.chzhen):  Decrease complexity.
+// dbLoad loads stored leases.
 func (s *server) dbLoad() (err error) {
-	dynLeases := []*Lease{}
-	staticLeases := []*Lease{}
-	v6StaticLeases := []*Lease{}
-	v6DynLeases := []*Lease{}
-
-	data, err := os.ReadFile(s.conf.DBFilePath)
+	data, err := os.ReadFile(s.conf.dbFilePath)
 	if err != nil {
 		if !errors.Is(err, os.ErrNotExist) {
 			return fmt.Errorf("reading db: %w", err)
@@ -50,52 +41,30 @@ func (s *server) dbLoad() (err error) {
 		return nil
 	}
 
-	obj := []leaseJSON{}
-	err = json.Unmarshal(data, &obj)
+	dl := &dataLeases{}
+	err = json.Unmarshal(data, dl)
 	if err != nil {
 		return fmt.Errorf("decoding db: %w", err)
 	}
 
-	numLeases := len(obj)
-	for i := range obj {
-		obj[i].IP = normalizeIP(obj[i].IP)
+	leases := dl.Leases
 
-		ip, ok := netip.AddrFromSlice(obj[i].IP)
-		if !ok {
-			log.Info("dhcp: invalid IP: %s", obj[i].IP)
-			continue
-		}
+	leases4 := []*Lease{}
+	leases6 := []*Lease{}
 
-		lease := Lease{
-			HWAddr:   obj[i].HWAddr,
-			IP:       ip,
-			Hostname: obj[i].Hostname,
-			Expiry:   time.Unix(obj[i].Expiry, 0),
-			IsStatic: obj[i].Expiry == leaseExpireStatic,
-		}
-
-		if len(obj[i].IP) == 16 {
-			if lease.IsStatic {
-				v6StaticLeases = append(v6StaticLeases, &lease)
-			} else {
-				v6DynLeases = append(v6DynLeases, &lease)
-			}
+	for _, l := range leases {
+		if l.IP.Is4() {
+			leases4 = append(leases4, l)
 		} else {
-			if lease.IsStatic {
-				staticLeases = append(staticLeases, &lease)
-			} else {
-				dynLeases = append(dynLeases, &lease)
-			}
+			leases6 = append(leases6, l)
 		}
 	}
 
-	leases4 := normalizeLeases(staticLeases, dynLeases)
 	err = s.srv4.ResetLeases(leases4)
 	if err != nil {
 		return fmt.Errorf("resetting dhcpv4 leases: %w", err)
 	}
 
-	leases6 := normalizeLeases(v6StaticLeases, v6DynLeases)
 	if s.srv6 != nil {
 		err = s.srv6.ResetLeases(leases6)
 		if err != nil {
@@ -104,90 +73,54 @@ func (s *server) dbLoad() (err error) {
 	}
 
 	log.Info("dhcp: loaded leases v4:%d  v6:%d  total-read:%d from DB",
-		len(leases4), len(leases6), numLeases)
+		len(leases4), len(leases6), len(leases))
 
 	return nil
 }
 
-// Skip duplicate leases
-// Static leases have a priority over dynamic leases
-func normalizeLeases(staticLeases, dynLeases []*Lease) []*Lease {
-	leases := []*Lease{}
-	index := map[string]int{}
-
-	for i, lease := range staticLeases {
-		_, ok := index[lease.HWAddr.String()]
-		if ok {
-			continue // skip the lease with the same HW address
-		}
-		index[lease.HWAddr.String()] = i
-		leases = append(leases, lease)
-	}
-
-	for i, lease := range dynLeases {
-		_, ok := index[lease.HWAddr.String()]
-		if ok {
-			continue // skip the lease with the same HW address
-		}
-		index[lease.HWAddr.String()] = i
-		leases = append(leases, lease)
-	}
-
-	return leases
-}
-
-// Store lease table in DB
+// dbStore stores DHCP leases.
 func (s *server) dbStore() (err error) {
 	// Use an empty slice here as opposed to nil so that it doesn't write
 	// "null" into the database file if leases are empty.
-	leases := []leaseJSON{}
+	leases := []*Lease{}
 
 	leases4 := s.srv4.getLeasesRef()
-	for _, l := range leases4 {
-		if l.Expiry.Unix() == 0 {
-			continue
-		}
-
-		lease := leaseJSON{
-			HWAddr:   l.HWAddr,
-			IP:       l.IP.AsSlice(),
-			Hostname: l.Hostname,
-			Expiry:   l.Expiry.Unix(),
-		}
-
-		leases = append(leases, lease)
-	}
+	leases = append(leases, leases4...)
 
 	if s.srv6 != nil {
 		leases6 := s.srv6.getLeasesRef()
-		for _, l := range leases6 {
-			if l.Expiry.Unix() == 0 {
-				continue
-			}
-
-			lease := leaseJSON{
-				HWAddr:   l.HWAddr,
-				IP:       l.IP.AsSlice(),
-				Hostname: l.Hostname,
-				Expiry:   l.Expiry.Unix(),
-			}
-
-			leases = append(leases, lease)
-		}
+		leases = append(leases, leases6...)
 	}
 
-	var data []byte
-	data, err = json.Marshal(leases)
+	return writeDB(s.conf.dbFilePath, leases)
+}
+
+// writeDB writes leases to file at path.
+func writeDB(path string, leases []*Lease) (err error) {
+	defer func() { err = errors.Annotate(err, "writing db: %w") }()
+
+	slices.SortFunc(leases, func(a, b *Lease) bool {
+		return a.Hostname < b.Hostname
+	})
+
+	dl := &dataLeases{
+		Version: dataVersion,
+		Leases:  leases,
+	}
+
+	buf, err := json.Marshal(dl)
 	if err != nil {
-		return fmt.Errorf("encoding db: %w", err)
+		// Don't wrap the error since it's informative enough as is.
+		return err
 	}
 
-	err = maybe.WriteFile(s.conf.DBFilePath, data, 0o644)
+	err = maybe.WriteFile(path, buf, 0o644)
 	if err != nil {
-		return fmt.Errorf("writing db: %w", err)
+		// Don't wrap the error since it's informative enough as is.
+		return err
 	}
 
-	log.Info("dhcp: stored %d leases in db", len(leases))
+	log.Info("dhcp: stored %d leases in %q", len(leases), path)
 
 	return nil
 }

internal/dhcpd/dhcpd.go

@@ -15,13 +15,6 @@ import (
 )
 
 const (
-	// leaseExpireStatic is used to define the Expiry field for static
-	// leases.
-	//
-	// TODO(e.burkov): Remove it when static leases determining mechanism
-	// will be improved.
-	leaseExpireStatic = 1
-
 	// DefaultDHCPLeaseTTL is the default time-to-live for leases.
 	DefaultDHCPLeaseTTL = uint32(timeutil.Day / time.Second)
 
@@ -35,10 +28,10 @@ const (
 	defaultBackoff     time.Duration = 500 * time.Millisecond
 )
 
-// Lease contains the necessary information about a DHCP lease
+// Lease contains the necessary information about a DHCP lease.  It's used in
+// various places.  So don't change it without good reason.
 type Lease struct {
-	// Expiry is the expiration time of the lease.  The unix timestamp value
-	// of 1 means that this is a static lease.
+	// Expiry is the expiration time of the lease.
 	Expiry time.Time `json:"expires"`
 
 	// Hostname of the client.
@@ -238,7 +231,7 @@ func Create(conf *ServerConfig) (s *server, err error) {
 
 			LocalDomainName: conf.LocalDomainName,
 
-			DBFilePath: filepath.Join(conf.WorkDir, dbFilename),
+			dbFilePath: filepath.Join(conf.DataDir, dataFilename),
 		},
 	}
 
@@ -246,39 +239,26 @@ func Create(conf *ServerConfig) (s *server, err error) {
 	// [aghhttp.RegisterFunc].
 	s.registerHandlers()
 
-	v4conf := conf.Conf4
-	v4conf.InterfaceName = s.conf.InterfaceName
-	v4conf.notify = s.onNotify
-	v4conf.Enabled = s.conf.Enabled && v4conf.RangeStart.IsValid()
-
-	s.srv4, err = v4Create(&v4conf)
+	v4Enabled, v6Enabled, err := s.setServers(conf)
 	if err != nil {
-		if v4conf.Enabled {
-			return nil, fmt.Errorf("creating dhcpv4 srv: %w", err)
-		}
-
-		log.Debug("dhcpd: warning: creating dhcpv4 srv: %s", err)
-	}
-
-	v6conf := conf.Conf6
-	v6conf.Enabled = s.conf.Enabled
-	if len(v6conf.RangeStart) == 0 {
-		v6conf.Enabled = false
-	}
-	v6conf.InterfaceName = s.conf.InterfaceName
-	v6conf.notify = s.onNotify
-	s.srv6, err = v6Create(v6conf)
-	if err != nil {
-		return nil, fmt.Errorf("creating dhcpv6 srv: %w", err)
+		// Don't wrap the error, because it's informative enough as is.
+		return nil, err
 	}
 
 	s.conf.Conf4 = conf.Conf4
 	s.conf.Conf6 = conf.Conf6
 
-	if s.conf.Enabled && !v4conf.Enabled && !v6conf.Enabled {
+	if s.conf.Enabled && !v4Enabled && !v6Enabled {
 		return nil, fmt.Errorf("neither dhcpv4 nor dhcpv6 srv is configured")
 	}
 
+	// Migrate leases db if needed.
+	err = migrateDB(conf)
+	if err != nil {
+		// Don't wrap the error since it's informative enough as is.
+		return nil, err
+	}
+
 	// Don't delay database loading until the DHCP server is started,
 	// because we need static leases functionality available beforehand.
 	err = s.dbLoad()
@@ -289,6 +269,39 @@ func Create(conf *ServerConfig) (s *server, err error) {
 	return s, nil
 }
 
+// setServers updates DHCPv4 and DHCPv6 servers created from the provided
+// configuration conf.
+func (s *server) setServers(conf *ServerConfig) (v4Enabled, v6Enabled bool, err error) {
+	v4conf := conf.Conf4
+	v4conf.InterfaceName = s.conf.InterfaceName
+	v4conf.notify = s.onNotify
+	v4conf.Enabled = s.conf.Enabled && v4conf.RangeStart.IsValid()
+
+	s.srv4, err = v4Create(&v4conf)
+	if err != nil {
+		if v4conf.Enabled {
+			return true, false, fmt.Errorf("creating dhcpv4 srv: %w", err)
+		}
+
+		log.Debug("dhcpd: warning: creating dhcpv4 srv: %s", err)
+	}
+
+	v6conf := conf.Conf6
+	v6conf.InterfaceName = s.conf.InterfaceName
+	v6conf.notify = s.onNotify
+	v6conf.Enabled = s.conf.Enabled
+	if len(v6conf.RangeStart) == 0 {
+		v6conf.Enabled = false
+	}
+
+	s.srv6, err = v6Create(v6conf)
+	if err != nil {
+		return v4conf.Enabled, v6conf.Enabled, fmt.Errorf("creating dhcpv6 srv: %w", err)
+	}
+
+	return v4conf.Enabled, v6conf.Enabled, nil
+}
+
 // Enabled returns true when the server is enabled.
 func (s *server) Enabled() (ok bool) {
 	return s.conf.Enabled

internal/dhcpd/dhcpd_unix_test.go

@@ -5,7 +5,7 @@ package dhcpd
 import (
 	"net"
 	"net/netip"
-	"os"
+	"path/filepath"
 	"testing"
 	"time"
 
@@ -27,7 +27,7 @@ func TestDB(t *testing.T) {
 	var err error
 	s := server{
 		conf: &ServerConfig{
-			DBFilePath: dbFilename,
+			dbFilePath: filepath.Join(t.TempDir(), dataFilename),
 		},
 	}
 
@@ -67,8 +67,6 @@ func TestDB(t *testing.T) {
 	err = s.dbStore()
 	require.NoError(t, err)
 
-	testutil.CleanupAndRequireSuccess(t, func() (err error) { return os.Remove(dbFilename) })
-
 	err = s.srv4.ResetLeases(nil)
 	require.NoError(t, err)
 
@@ -78,36 +76,13 @@ func TestDB(t *testing.T) {
 	ll := s.srv4.GetLeases(LeasesAll)
 	require.Len(t, ll, len(leases))
 
-	assert.Equal(t, leases[1].HWAddr, ll[0].HWAddr)
-	assert.Equal(t, leases[1].IP, ll[0].IP)
-	assert.True(t, ll[0].IsStatic)
+	assert.Equal(t, leases[0].HWAddr, ll[0].HWAddr)
+	assert.Equal(t, leases[0].IP, ll[0].IP)
+	assert.Equal(t, leases[0].Expiry.Unix(), ll[0].Expiry.Unix())
 
-	assert.Equal(t, leases[0].HWAddr, ll[1].HWAddr)
-	assert.Equal(t, leases[0].IP, ll[1].IP)
-	assert.Equal(t, leases[0].Expiry.Unix(), ll[1].Expiry.Unix())
-}
-
-func TestNormalizeLeases(t *testing.T) {
-	dynLeases := []*Lease{{
-		HWAddr: net.HardwareAddr{1, 2, 3, 4},
-	}, {
-		HWAddr: net.HardwareAddr{1, 2, 3, 5},
-	}}
-
-	staticLeases := []*Lease{{
-		HWAddr: net.HardwareAddr{1, 2, 3, 4},
-		IP:     netip.MustParseAddr("0.2.3.4"),
-	}, {
-		HWAddr: net.HardwareAddr{2, 2, 3, 4},
-	}}
-
-	leases := normalizeLeases(staticLeases, dynLeases)
-	require.Len(t, leases, 3)
-
-	assert.Equal(t, leases[0].HWAddr, dynLeases[0].HWAddr)
-	assert.Equal(t, leases[0].IP, staticLeases[0].IP)
-	assert.Equal(t, leases[1].HWAddr, staticLeases[1].HWAddr)
-	assert.Equal(t, leases[2].HWAddr, dynLeases[1].HWAddr)
+	assert.Equal(t, leases[1].HWAddr, ll[1].HWAddr)
+	assert.Equal(t, leases[1].IP, ll[1].IP)
+	assert.True(t, ll[1].IsStatic)
 }
 
 func TestV4Server_badRange(t *testing.T) {

internal/dhcpd/http_unix.go

@@ -16,6 +16,7 @@ import (
 	"github.com/AdguardTeam/AdGuardHome/internal/aghnet"
 	"github.com/AdguardTeam/golibs/errors"
 	"github.com/AdguardTeam/golibs/log"
+	"github.com/AdguardTeam/golibs/netutil"
 )
 
 type v4ServerConfJSON struct {
@@ -263,6 +264,28 @@ func (s *server) handleDHCPSetConfigV6(
 	return srv6, enabled, err
 }
 
+// createServers returns DHCPv4 and DHCPv6 servers created from the provided
+// configuration conf.
+func (s *server) createServers(conf *dhcpServerConfigJSON) (srv4, srv6 DHCPServer, err error) {
+	srv4, v4Enabled, err := s.handleDHCPSetConfigV4(conf)
+	if err != nil {
+		return nil, nil, fmt.Errorf("bad dhcpv4 configuration: %s", err)
+	}
+
+	srv6, v6Enabled, err := s.handleDHCPSetConfigV6(conf)
+	if err != nil {
+		return nil, nil, fmt.Errorf("bad dhcpv6 configuration: %s", err)
+	}
+
+	if conf.Enabled == aghalg.NBTrue && !v4Enabled && !v6Enabled {
+		return nil, nil, fmt.Errorf("dhcpv4 or dhcpv6 configuration must be complete")
+	}
+
+	return srv4, srv6, nil
+}
+
+// handleDHCPSetConfig is the handler for the POST /control/dhcp/set_config
+// HTTP API.
 func (s *server) handleDHCPSetConfig(w http.ResponseWriter, r *http.Request) {
 	conf := &dhcpServerConfigJSON{}
 	conf.Enabled = aghalg.BoolToNullBool(s.conf.Enabled)
@@ -275,22 +298,9 @@ func (s *server) handleDHCPSetConfig(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	srv4, v4Enabled, err := s.handleDHCPSetConfigV4(conf)
+	srv4, srv6, err := s.createServers(conf)
 	if err != nil {
-		aghhttp.Error(r, w, http.StatusBadRequest, "bad dhcpv4 configuration: %s", err)
-
-		return
-	}
-
-	srv6, v6Enabled, err := s.handleDHCPSetConfigV6(conf)
-	if err != nil {
-		aghhttp.Error(r, w, http.StatusBadRequest, "bad dhcpv6 configuration: %s", err)
-
-		return
-	}
-
-	if conf.Enabled == aghalg.NBTrue && !v4Enabled && !v6Enabled {
-		aghhttp.Error(r, w, http.StatusBadRequest, "dhcpv4 or dhcpv6 configuration must be complete")
+		aghhttp.Error(r, w, http.StatusBadRequest, "%s", err)
 
 		return
 	}
@@ -350,8 +360,10 @@ type netInterfaceJSON struct {
 	Addrs6       []netip.Addr `json:"ipv6_addresses"`
 }
 
+// handleDHCPInterfaces is the handler for the GET /control/dhcp/interfaces
+// HTTP API.
 func (s *server) handleDHCPInterfaces(w http.ResponseWriter, r *http.Request) {
-	response := map[string]netInterfaceJSON{}
+	resp := map[string]*netInterfaceJSON{}
 
 	ifaces, err := net.Interfaces()
 	if err != nil {
@@ -362,82 +374,86 @@ func (s *server) handleDHCPInterfaces(w http.ResponseWriter, r *http.Request) {
 
 	for _, iface := range ifaces {
 		if iface.Flags&net.FlagLoopback != 0 {
-			// it's a loopback, skip it
-			continue
-		}
-		if iface.Flags&net.FlagBroadcast == 0 {
-			// this interface doesn't support broadcast, skip it
+			// It's a loopback, skip it.
 			continue
 		}
 
-		var addrs []net.Addr
-		addrs, err = iface.Addrs()
-		if err != nil {
-			aghhttp.Error(
-				r,
-				w,
-				http.StatusInternalServerError,
-				"Failed to get addresses for interface %s: %s",
-				iface.Name,
-				err,
-			)
+		if iface.Flags&net.FlagBroadcast == 0 {
+			// This interface doesn't support broadcast, skip it.
+			continue
+		}
+
+		jsonIface, iErr := newNetInterfaceJSON(iface)
+		if iErr != nil {
+			aghhttp.Error(r, w, http.StatusInternalServerError, "%s", iErr)
 
 			return
 		}
 
-		jsonIface := netInterfaceJSON{
-			Name:         iface.Name,
-			HardwareAddr: iface.HardwareAddr.String(),
-		}
-
-		if iface.Flags != 0 {
-			jsonIface.Flags = iface.Flags.String()
-		}
-		// we don't want link-local addresses in json, so skip them
-		for _, addr := range addrs {
-			ipnet, ok := addr.(*net.IPNet)
-			if !ok {
-				// not an IPNet, should not happen
-				aghhttp.Error(
-					r,
-					w,
-					http.StatusInternalServerError,
-					"got iface.Addrs() element %[1]s that is not net.IPNet, it is %[1]T",
-					addr)
-
-				return
-			}
-			// ignore link-local
-			//
-			// TODO(e.burkov):  Try to listen DHCP on LLA as well.
-			if ipnet.IP.IsLinkLocalUnicast() {
-				continue
-			}
-
-			if ip4 := ipnet.IP.To4(); ip4 != nil {
-				addr := netip.AddrFrom4(*(*[4]byte)(ip4))
-				jsonIface.Addrs4 = append(jsonIface.Addrs4, addr)
-			} else {
-				addr := netip.AddrFrom16(*(*[16]byte)(ipnet.IP))
-				jsonIface.Addrs6 = append(jsonIface.Addrs6, addr)
-			}
-		}
-		if len(jsonIface.Addrs4)+len(jsonIface.Addrs6) != 0 {
-			jsonIface.GatewayIP = aghnet.GatewayIP(iface.Name)
-			response[iface.Name] = jsonIface
+		if jsonIface != nil {
+			resp[iface.Name] = jsonIface
 		}
 	}
 
-	err = json.NewEncoder(w).Encode(response)
+	_ = aghhttp.WriteJSONResponse(w, r, resp)
+}
+
+// newNetInterfaceJSON creates a JSON object from a [net.Interface] iface.
+func newNetInterfaceJSON(iface net.Interface) (out *netInterfaceJSON, err error) {
+	addrs, err := iface.Addrs()
 	if err != nil {
-		aghhttp.Error(
-			r,
-			w,
-			http.StatusInternalServerError,
-			"Failed to marshal json with available interfaces: %s",
+		return nil, fmt.Errorf(
+			"failed to get addresses for interface %s: %s",
+			iface.Name,
 			err,
 		)
 	}
+
+	out = &netInterfaceJSON{
+		Name:         iface.Name,
+		HardwareAddr: iface.HardwareAddr.String(),
+	}
+
+	if iface.Flags != 0 {
+		out.Flags = iface.Flags.String()
+	}
+
+	// We don't want link-local addresses in JSON, so skip them.
+	for _, addr := range addrs {
+		ipNet, ok := addr.(*net.IPNet)
+		if !ok {
+			// Not an IPNet, should not happen.
+			return nil, fmt.Errorf("got iface.Addrs() element %[1]s that is not"+
+				" net.IPNet, it is %[1]T", addr)
+		}
+
+		// Ignore link-local.
+		//
+		// TODO(e.burkov):  Try to listen DHCP on LLA as well.
+		if ipNet.IP.IsLinkLocalUnicast() {
+			continue
+		}
+
+		vAddr, iErr := netutil.IPToAddrNoMapped(ipNet.IP)
+		if iErr != nil {
+			// Not an IPNet, should not happen.
+			return nil, fmt.Errorf("failed to convert IP address %[1]s: %w", addr, iErr)
+		}
+
+		if vAddr.Is4() {
+			out.Addrs4 = append(out.Addrs4, vAddr)
+		} else {
+			out.Addrs6 = append(out.Addrs6, vAddr)
+		}
+	}
+
+	if len(out.Addrs4)+len(out.Addrs6) == 0 {
+		return nil, nil
+	}
+
+	out.GatewayIP = aghnet.GatewayIP(iface.Name)
+
+	return out, nil
 }
 
 // dhcpSearchOtherResult contains information about other DHCP server for
@@ -639,7 +655,7 @@ func (s *server) handleReset(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	err = os.Remove(s.conf.DBFilePath)
+	err = os.Remove(s.conf.dbFilePath)
 	if err != nil && !errors.Is(err, os.ErrNotExist) {
 		log.Error("dhcp: removing db: %s", err)
 	}
@@ -651,8 +667,8 @@ func (s *server) handleReset(w http.ResponseWriter, r *http.Request) {
 
 		LocalDomainName: s.conf.LocalDomainName,
 
-		WorkDir:    s.conf.WorkDir,
-		DBFilePath: s.conf.DBFilePath,
+		DataDir:    s.conf.DataDir,
+		dbFilePath: s.conf.dbFilePath,
 	}
 
 	v4conf := &V4ServerConf{

internal/dhcpd/http_unix_test.go

@@ -31,8 +31,7 @@ func TestServer_handleDHCPStatus(t *testing.T) {
 	s, err := Create(&ServerConfig{
 		Enabled:        true,
 		Conf4:          *defaultV4ServerConf(),
-		WorkDir:        t.TempDir(),
-		DBFilePath:     dbFilename,
+		DataDir:        t.TempDir(),
 		ConfigModified: func() {},
 	})
 	require.NoError(t, err)

internal/dhcpd/migrate.go

@@ -0,0 +1,106 @@
+package dhcpd
+
+import (
+	"encoding/json"
+	"net"
+	"net/netip"
+	"os"
+	"path/filepath"
+	"time"
+
+	"github.com/AdguardTeam/golibs/errors"
+	"github.com/AdguardTeam/golibs/log"
+)
+
+const (
+	// leaseExpireStatic is used to define the Expiry field for static
+	// leases.
+	//
+	// Deprecated:  Remove it when migration of DHCP leases will be not needed.
+	leaseExpireStatic = 1
+
+	// dbFilename contains saved leases.
+	//
+	// Deprecated:  Use dataFilename.
+	dbFilename = "leases.db"
+)
+
+// leaseJSON is the structure of stored lease.
+//
+// Deprecated:  Use [Lease].
+type leaseJSON struct {
+	HWAddr   []byte `json:"mac"`
+	IP       []byte `json:"ip"`
+	Hostname string `json:"host"`
+	Expiry   int64  `json:"exp"`
+}
+
+func normalizeIP(ip net.IP) net.IP {
+	ip4 := ip.To4()
+	if ip4 != nil {
+		return ip4
+	}
+
+	return ip
+}
+
+// migrateDB migrates stored leases if necessary.
+func migrateDB(conf *ServerConfig) (err error) {
+	defer func() { err = errors.Annotate(err, "migrating db: %w") }()
+
+	oldLeasesPath := filepath.Join(conf.WorkDir, dbFilename)
+	dataDirPath := filepath.Join(conf.DataDir, dataFilename)
+
+	file, err := os.Open(oldLeasesPath)
+	if errors.Is(err, os.ErrNotExist) {
+		// Nothing to migrate.
+		return nil
+	} else if err != nil {
+		// Don't wrap the error since it's informative enough as is.
+		return err
+	}
+
+	ljs := []leaseJSON{}
+	err = json.NewDecoder(file).Decode(&ljs)
+	if err != nil {
+		// Don't wrap the error since it's informative enough as is.
+		return err
+	}
+
+	err = file.Close()
+	if err != nil {
+		// Don't wrap the error since it's informative enough as is.
+		return err
+	}
+
+	leases := []*Lease{}
+
+	for _, lj := range ljs {
+		lj.IP = normalizeIP(lj.IP)
+
+		ip, ok := netip.AddrFromSlice(lj.IP)
+		if !ok {
+			log.Info("dhcp: invalid IP: %s", lj.IP)
+
+			continue
+		}
+
+		lease := &Lease{
+			Expiry:   time.Unix(lj.Expiry, 0),
+			Hostname: lj.Hostname,
+			HWAddr:   lj.HWAddr,
+			IP:       ip,
+			IsStatic: lj.Expiry == leaseExpireStatic,
+		}
+
+		leases = append(leases, lease)
+	}
+
+	err = writeDB(dataDirPath, leases)
+	if err != nil {
+		// Don't wrap the error since it's informative enough as is.
+		return err
+	}
+
+	return os.Remove(oldLeasesPath)
+}

internal/dhcpd/migrate_internal_test.go

@@ -0,0 +1,73 @@
+package dhcpd
+
+import (
+	"encoding/json"
+	"net"
+	"net/netip"
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+const testData = `[
+{"mac":"ESIzRFVm","ip":"AQIDBA==","host":"test1","exp":1},
+{"mac":"ZlVEMyIR","ip":"BAMCAQ==","host":"test2","exp":1231231231}
+]`
+
+func TestMigrateDB(t *testing.T) {
+	dir := t.TempDir()
+
+	oldLeasesPath := filepath.Join(dir, dbFilename)
+	dataDirPath := filepath.Join(dir, dataFilename)
+
+	err := os.WriteFile(oldLeasesPath, []byte(testData), 0o644)
+	require.NoError(t, err)
+
+	wantLeases := []*Lease{{
+		Expiry:   time.Time{},
+		Hostname: "test1",
+		HWAddr:   net.HardwareAddr{0x11, 0x22, 0x33, 0x44, 0x55, 0x66},
+		IP:       netip.MustParseAddr("1.2.3.4"),
+		IsStatic: true,
+	}, {
+		Expiry:   time.Unix(1231231231, 0),
+		Hostname: "test2",
+		HWAddr:   net.HardwareAddr{0x66, 0x55, 0x44, 0x33, 0x22, 0x11},
+		IP:       netip.MustParseAddr("4.3.2.1"),
+		IsStatic: false,
+	}}
+
+	conf := &ServerConfig{
+		WorkDir: dir,
+		DataDir: dir,
+	}
+
+	err = migrateDB(conf)
+	require.NoError(t, err)
+
+	_, err = os.Stat(oldLeasesPath)
+	require.ErrorIs(t, err, os.ErrNotExist)
+
+	var data []byte
+	data, err = os.ReadFile(dataDirPath)
+	require.NoError(t, err)
+
+	dl := &dataLeases{}
+	err = json.Unmarshal(data, dl)
+	require.NoError(t, err)
+
+	leases := dl.Leases
+
+	for i, wl := range wantLeases {
+		assert.Equal(t, wl.Hostname, leases[i].Hostname)
+		assert.Equal(t, wl.HWAddr, leases[i].HWAddr)
+		assert.Equal(t, wl.IP, leases[i].IP)
+		assert.Equal(t, wl.IsStatic, leases[i].IsStatic)
+
+		require.True(t, wl.Expiry.Equal(leases[i].Expiry))
+	}
+}

internal/dhcpd/os_windows.go

@@ -1,15 +0,0 @@
-//go:build windows
-
-package dhcpd
-
-import (
-	"net"
-
-	"github.com/AdguardTeam/AdGuardHome/internal/aghos"
-	"golang.org/x/net/ipv4"
-)
-
-// Create a socket for receiving broadcast packets
-func newBroadcastPacketConn(_ net.IP, _ int, _ string) (*ipv4.PacketConn, error) {
-	return nil, aghos.Unsupported("newBroadcastPacketConn")
-}

internal/dhcpd/routeradv.go

@@ -7,6 +7,7 @@ import (
 	"sync/atomic"
 	"time"
 
+	"github.com/AdguardTeam/golibs/errors"
 	"github.com/AdguardTeam/golibs/log"
 	"github.com/AdguardTeam/golibs/netutil"
 	"golang.org/x/net/icmp"
@@ -195,7 +196,7 @@ func createICMPv6RAPacket(params icmpv6RA) (data []byte, err error) {
 	return data, nil
 }
 
-// Init - initialize RA module
+// Init initializes RA module.
 func (ra *raCtx) Init() (err error) {
 	ra.stop.Store(0)
 	ra.conn = nil
@@ -203,8 +204,7 @@ func (ra *raCtx) Init() (err error) {
 		return nil
 	}
 
-	log.Debug("dhcpv6 ra: source IP address: %s  DNS IP address: %s",
-		ra.ipAddr, ra.dnsIPAddr)
+	log.Debug("dhcpv6 ra: source IP address: %s  DNS IP address: %s", ra.ipAddr, ra.dnsIPAddr)
 
 	params := icmpv6RA{
 		managedAddressConfiguration: !ra.raSLAACOnly,
@@ -223,18 +223,15 @@ func (ra *raCtx) Init() (err error) {
 		return fmt.Errorf("creating packet: %w", err)
 	}
 
-	success := false
 	ipAndScope := ra.ipAddr.String() + "%" + ra.ifaceName
 	ra.conn, err = icmp.ListenPacket("ip6:ipv6-icmp", ipAndScope)
 	if err != nil {
 		return fmt.Errorf("dhcpv6 ra: icmp.ListenPacket: %w", err)
 	}
+
 	defer func() {
-		if !success {
-			derr := ra.Close()
-			if derr != nil {
-				log.Error("closing context: %s", derr)
-			}
+		if err != nil {
+			err = errors.WithDeferred(err, ra.Close())
 		}
 	}()
 
@@ -269,7 +266,6 @@ func (ra *raCtx) Init() (err error) {
 		log.Debug("dhcpv6 ra: loop exit")
 	}()
 
-	success = true
 	return nil
 }
 

internal/dhcpd/v4_unix.go

@@ -256,6 +256,8 @@ func (s *v4Server) rmLeaseByIndex(i int) {
 
 // Remove a dynamic lease with the same properties
 // Return error if a static lease is found
+//
+// TODO(s.chzhen):  Refactor the code.
 func (s *v4Server) rmDynamicLease(lease *Lease) (err error) {
 	for i, l := range s.leases {
 		isStatic := l.IsStatic
@@ -340,8 +342,8 @@ func (s *v4Server) rmLease(lease *Lease) (err error) {
 // server to be configured and it's not.
 const ErrUnconfigured errors.Error = "server is unconfigured"
 
-// AddStaticLease implements the DHCPServer interface for *v4Server.  It is safe
-// for concurrent use.
+// AddStaticLease implements the DHCPServer interface for *v4Server.  It is
+// safe for concurrent use.
 func (s *v4Server) AddStaticLease(l *Lease) (err error) {
 	defer func() { err = errors.Annotate(err, "dhcpv4: adding static lease: %w") }()
 
@@ -352,22 +354,23 @@ func (s *v4Server) AddStaticLease(l *Lease) (err error) {
 	l.IP = l.IP.Unmap()
 
 	if !l.IP.Is4() {
-		return fmt.Errorf("invalid ip %q, only ipv4 is supported", l.IP)
+		return fmt.Errorf("invalid IP %q: only IPv4 is supported", l.IP)
 	} else if gwIP := s.conf.GatewayIP; gwIP == l.IP {
-		return fmt.Errorf("can't assign the gateway IP %s to the lease", gwIP)
+		return fmt.Errorf("can't assign the gateway IP %q to the lease", gwIP)
 	}
 
-	l.Expiry = time.Unix(leaseExpireStatic, 0)
 	l.IsStatic = true
 
 	err = netutil.ValidateMAC(l.HWAddr)
 	if err != nil {
+		// Don't wrap the error, because it's informative enough as is.
 		return err
 	}
 
 	if hostname := l.Hostname; hostname != "" {
 		hostname, err = normalizeHostname(hostname)
 		if err != nil {
+			// Don't wrap the error, because it's informative enough as is.
 			return err
 		}
 
@@ -385,32 +388,9 @@ func (s *v4Server) AddStaticLease(l *Lease) (err error) {
 		l.Hostname = hostname
 	}
 
-	// Perform the following actions in an anonymous function to make sure
-	// that the lock gets unlocked before the notification step.
-	func() {
-		s.leasesLock.Lock()
-		defer s.leasesLock.Unlock()
-
-		err = s.rmDynamicLease(l)
-		if err != nil {
-			err = fmt.Errorf(
-				"removing dynamic leases for %s (%s): %w",
-				l.IP,
-				l.HWAddr,
-				err,
-			)
-
-			return
-		}
-
-		err = s.addLease(l)
-		if err != nil {
-			err = fmt.Errorf("adding static lease for %s (%s): %w", l.IP, l.HWAddr, err)
-
-			return
-		}
-	}()
+	err = s.updateStaticLease(l)
 	if err != nil {
+		// Don't wrap the error, because it's informative enough as is.
 		return err
 	}
 
@@ -420,6 +400,25 @@ func (s *v4Server) AddStaticLease(l *Lease) (err error) {
 	return nil
 }
 
+// updateStaticLease safe removes dynamic lease with the same properties and
+// then adds a static lease l.
+func (s *v4Server) updateStaticLease(l *Lease) (err error) {
+	s.leasesLock.Lock()
+	defer s.leasesLock.Unlock()
+
+	err = s.rmDynamicLease(l)
+	if err != nil {
+		return fmt.Errorf("removing dynamic leases for %s (%s): %w", l.IP, l.HWAddr, err)
+	}
+
+	err = s.addLease(l)
+	if err != nil {
+		return fmt.Errorf("adding static lease for %s (%s): %w", l.IP, l.HWAddr, err)
+	}
+
+	return nil
+}
+
 // RemoveStaticLease removes a static lease.  It is safe for concurrent use.
 func (s *v4Server) RemoveStaticLease(l *Lease) (err error) {
 	defer func() { err = errors.Annotate(err, "dhcpv4: %w") }()
@@ -893,24 +892,9 @@ func (s *v4Server) handleDecline(req, resp *dhcpv4.DHCPv4) (err error) {
 		reqIP = req.ClientIPAddr
 	}
 
-	netIP, ok := netip.AddrFromSlice(reqIP)
-	if !ok {
-		log.Info("dhcpv4: invalid IP: %s", reqIP)
-
-		return nil
-	}
-
-	var oldLease *Lease
-	for _, l := range s.leases {
-		if bytes.Equal(l.HWAddr, mac) && l.IP == netIP {
-			oldLease = l
-
-			break
-		}
-	}
-
+	oldLease := s.findLeaseForIP(reqIP, mac)
 	if oldLease == nil {
-		log.Info("dhcpv4: lease with ip %s for %s not found", reqIP, mac)
+		log.Info("dhcpv4: lease with IP %s for %s not found", reqIP, mac)
 
 		return nil
 	}
@@ -924,7 +908,7 @@ func (s *v4Server) handleDecline(req, resp *dhcpv4.DHCPv4) (err error) {
 	if err != nil {
 		return fmt.Errorf("allocating new lease for %s: %w", mac, err)
 	} else if newLease == nil {
-		log.Info("dhcpv4: allocating new lease for %s: no more ip addresses", mac)
+		log.Info("dhcpv4: allocating new lease for %s: no more IP addresses", mac)
 
 		resp.YourIPAddr = make([]byte, 4)
 		resp.UpdateOption(dhcpv4.OptMessageType(dhcpv4.MessageTypeAck))
@@ -940,15 +924,32 @@ func (s *v4Server) handleDecline(req, resp *dhcpv4.DHCPv4) (err error) {
 		return fmt.Errorf("adding new lease for %s: %w", mac, err)
 	}
 
-	log.Info("dhcpv4: changed ip from %s to %s for %s", reqIP, newLease.IP, mac)
-
-	resp.YourIPAddr = net.IP(newLease.IP.AsSlice())
+	log.Info("dhcpv4: changed IP from %s to %s for %s", reqIP, newLease.IP, mac)
 
+	resp.YourIPAddr = newLease.IP.AsSlice()
 	resp.UpdateOption(dhcpv4.OptMessageType(dhcpv4.MessageTypeAck))
 
 	return nil
 }
 
+// findLeaseForIP returns a lease for provided ip and mac.
+func (s *v4Server) findLeaseForIP(ip net.IP, mac net.HardwareAddr) (l *Lease) {
+	netIP, ok := netip.AddrFromSlice(ip)
+	if !ok {
+		log.Info("dhcpv4: invalid IP: %s", ip)
+
+		return nil
+	}
+
+	for _, il := range s.leases {
+		if bytes.Equal(il.HWAddr, mac) && il.IP == netIP {
+			return il
+		}
+	}
+
+	return nil
+}
+
 // handleRelease is the handler for the DHCP Release request.
 func (s *v4Server) handleRelease(req, resp *dhcpv4.DHCPv4) (err error) {
 	mac := req.ClientHWAddr
@@ -994,11 +995,80 @@ func (s *v4Server) handleRelease(req, resp *dhcpv4.DHCPv4) (err error) {
 	return nil
 }
 
-// Find a lease associated with MAC and prepare response
-// Return 1: OK
-// Return 0: error; reply with Nak
-// Return -1: error; don't reply
-func (s *v4Server) handle(req, resp *dhcpv4.DHCPv4) int {
+// messageHandler describes a DHCPv4 message handler function.
+type messageHandler func(s *v4Server, req, resp *dhcpv4.DHCPv4) (rCode int, l *Lease, err error)
+
+// messageHandlers is a map of handlers for various messages with message types
+// keys.
+var messageHandlers = map[dhcpv4.MessageType]messageHandler{
+	dhcpv4.MessageTypeDiscover: func(
+		s *v4Server,
+		req *dhcpv4.DHCPv4,
+		resp *dhcpv4.DHCPv4,
+	) (rCode int, l *Lease, err error) {
+		l, err = s.handleDiscover(req, resp)
+		if err != nil {
+			return 0, nil, fmt.Errorf("handling discover: %s", err)
+		}
+
+		if l == nil {
+			return 0, nil, nil
+		}
+
+		return 1, l, nil
+	},
+	dhcpv4.MessageTypeRequest: func(
+		s *v4Server,
+		req *dhcpv4.DHCPv4,
+		resp *dhcpv4.DHCPv4,
+	) (rCode int, l *Lease, err error) {
+		var toReply bool
+		l, toReply = s.handleRequest(req, resp)
+		if l == nil {
+			if toReply {
+				return 0, nil, nil
+			}
+
+			// Drop the packet.
+			return -1, nil, nil
+		}
+
+		return 1, l, nil
+	},
+	dhcpv4.MessageTypeDecline: func(
+		s *v4Server,
+		req *dhcpv4.DHCPv4,
+		resp *dhcpv4.DHCPv4,
+	) (rCode int, l *Lease, err error) {
+		err = s.handleDecline(req, resp)
+		if err != nil {
+			return 0, nil, fmt.Errorf("handling decline: %s", err)
+		}
+
+		return 1, nil, nil
+	},
+	dhcpv4.MessageTypeRelease: func(
+		s *v4Server,
+		req *dhcpv4.DHCPv4,
+		resp *dhcpv4.DHCPv4,
+	) (rCode int, l *Lease, err error) {
+		err = s.handleRelease(req, resp)
+		if err != nil {
+			return 0, nil, fmt.Errorf("handling release: %s", err)
+		}
+
+		return 1, nil, nil
+	},
+}
+
+// handle processes request, it finds a lease associated with MAC address and
+// prepares response.
+//
+// Possible return values are:
+//   - "1": OK,
+//   - "0": error, reply with Nak,
+//   - "-1": error, don't reply.
+func (s *v4Server) handle(req, resp *dhcpv4.DHCPv4) (rCode int) {
 	var err error
 
 	// Include server's identifier option since any reply should contain it.
@@ -1006,47 +1076,26 @@ func (s *v4Server) handle(req, resp *dhcpv4.DHCPv4) int {
 	// See https://datatracker.ietf.org/doc/html/rfc2131#page-29.
 	resp.UpdateOption(dhcpv4.OptServerIdentifier(s.conf.dnsIPAddrs[0].AsSlice()))
 
-	// TODO(a.garipov): Refactor this into handlers.
-	var l *Lease
-	switch mt := req.MessageType(); mt {
-	case dhcpv4.MessageTypeDiscover:
-		l, err = s.handleDiscover(req, resp)
-		if err != nil {
-			log.Error("dhcpv4: handling discover: %s", err)
+	handler := messageHandlers[req.MessageType()]
+	if handler == nil {
+		s.updateOptions(req, resp)
 
-			return 0
-		}
+		return 1
+	}
 
-		if l == nil {
-			return 0
-		}
-	case dhcpv4.MessageTypeRequest:
-		var toReply bool
-		l, toReply = s.handleRequest(req, resp)
-		if l == nil {
-			if toReply {
-				return 0
-			}
-			return -1 // drop packet
-		}
-	case dhcpv4.MessageTypeDecline:
-		err = s.handleDecline(req, resp)
-		if err != nil {
-			log.Error("dhcpv4: handling decline: %s", err)
+	rCode, l, err := handler(s, req, resp)
+	if err != nil {
+		log.Error("dhcpv4: %s", err)
 
-			return 0
-		}
-	case dhcpv4.MessageTypeRelease:
-		err = s.handleRelease(req, resp)
-		if err != nil {
-			log.Error("dhcpv4: handling release: %s", err)
+		return 0
+	}
 
-			return 0
-		}
+	if rCode != 1 {
+		return rCode
 	}
 
 	if l != nil {
-		resp.YourIPAddr = net.IP(l.IP.AsSlice())
+		resp.YourIPAddr = l.IP.AsSlice()
 	}
 
 	s.updateOptions(req, resp)
@@ -1161,23 +1210,8 @@ func (s *v4Server) Start() (err error) {
 		// No available IP addresses which may appear later.
 		return nil
 	}
-	// Update the value of Domain Name Server option separately from others if
-	// not assigned yet since its value is available only at server's start.
-	//
-	// TODO(e.burkov):  Initialize as implicit option with the rest of default
-	// options when it will be possible to do before the call to Start.
-	if !s.explicitOpts.Has(dhcpv4.OptionDomainNameServer) {
-		s.implicitOpts.Update(dhcpv4.OptDNS(dnsIPAddrs...))
-	}
 
-	for _, ip := range dnsIPAddrs {
-		ip = ip.To4()
-		if ip == nil {
-			continue
-		}
-
-		s.conf.dnsIPAddrs = append(s.conf.dnsIPAddrs, netip.AddrFrom4(*(*[4]byte)(ip)))
-	}
+	s.configureDNSIPAddrs(dnsIPAddrs)
 
 	var c net.PacketConn
 	if c, err = s.newDHCPConn(iface); err != nil {
@@ -1198,10 +1232,10 @@ func (s *v4Server) Start() (err error) {
 	log.Info("dhcpv4: listening")
 
 	go func() {
-		if serr := s.srv.Serve(); errors.Is(serr, net.ErrClosed) {
+		if sErr := s.srv.Serve(); errors.Is(sErr, net.ErrClosed) {
 			log.Info("dhcpv4: server is closed")
-		} else if serr != nil {
-			log.Error("dhcpv4: srv.Serve: %s", serr)
+		} else if sErr != nil {
+			log.Error("dhcpv4: srv.Serve: %s", sErr)
 		}
 	}()
 
@@ -1212,6 +1246,28 @@ func (s *v4Server) Start() (err error) {
 	return nil
 }
 
+// configureDNSIPAddrs updates v4Server configuration with provided slice of
+// dns IP addresses.
+func (s *v4Server) configureDNSIPAddrs(dnsIPAddrs []net.IP) {
+	// Update the value of Domain Name Server option separately from others if
+	// not assigned yet since its value is available only at server's start.
+	//
+	// TODO(e.burkov):  Initialize as implicit option with the rest of default
+	// options when it will be possible to do before the call to Start.
+	if !s.explicitOpts.Has(dhcpv4.OptionDomainNameServer) {
+		s.implicitOpts.Update(dhcpv4.OptDNS(dnsIPAddrs...))
+	}
+
+	for _, ip := range dnsIPAddrs {
+		vAddr, err := netutil.IPToAddr(ip, netutil.AddrFamilyIPv4)
+		if err != nil {
+			continue
+		}
+
+		s.conf.dnsIPAddrs = append(s.conf.dnsIPAddrs, vAddr)
+	}
+}
+
 // Stop - stop server
 func (s *v4Server) Stop() (err error) {
 	if s.srv == nil {

internal/dhcpd/v4_unix_test.go

@@ -68,7 +68,6 @@ func TestV4Server_leasing(t *testing.T) {
 
 	t.Run("add_static", func(t *testing.T) {
 		err := s.AddStaticLease(&Lease{
-			Expiry:   time.Unix(leaseExpireStatic, 0),
 			Hostname: staticName,
 			HWAddr:   staticMAC,
 			IP:       staticIP,
@@ -78,7 +77,6 @@ func TestV4Server_leasing(t *testing.T) {
 
 		t.Run("same_name", func(t *testing.T) {
 			err = s.AddStaticLease(&Lease{
-				Expiry:   time.Unix(leaseExpireStatic, 0),
 				Hostname: staticName,
 				HWAddr:   anotherMAC,
 				IP:       anotherIP,
@@ -93,7 +91,6 @@ func TestV4Server_leasing(t *testing.T) {
 				" (" + staticMAC.String() + "): static lease already exists"
 
 			err = s.AddStaticLease(&Lease{
-				Expiry:   time.Unix(leaseExpireStatic, 0),
 				Hostname: anotherName,
 				HWAddr:   staticMAC,
 				IP:       anotherIP,
@@ -108,7 +105,6 @@ func TestV4Server_leasing(t *testing.T) {
 				" (" + anotherMAC.String() + "): static lease already exists"
 
 			err = s.AddStaticLease(&Lease{
-				Expiry:   time.Unix(leaseExpireStatic, 0),
 				Hostname: anotherName,
 				HWAddr:   anotherMAC,
 				IP:       staticIP,
@@ -231,7 +227,7 @@ func TestV4Server_AddRemove_static(t *testing.T) {
 		},
 		name: "with_gateway_ip",
 		wantErrMsg: "dhcpv4: adding static lease: " +
-			"can't assign the gateway IP 192.168.10.1 to the lease",
+			`can't assign the gateway IP "192.168.10.1" to the lease`,
 	}, {
 		lease: &Lease{
 			Hostname: "ip6.local",
@@ -240,7 +236,7 @@ func TestV4Server_AddRemove_static(t *testing.T) {
 		},
 		name: "ipv6",
 		wantErrMsg: `dhcpv4: adding static lease: ` +
-			`invalid ip "ffff::1", only ipv4 is supported`,
+			`invalid IP "ffff::1": only IPv4 is supported`,
 	}, {
 		lease: &Lease{
 			Hostname: "bad-mac.local",
@@ -784,7 +780,6 @@ func TestV4Server_FindMACbyIP(t *testing.T) {
 
 	s := &v4Server{
 		leases: []*Lease{{
-			Expiry:   time.Unix(leaseExpireStatic, 0),
 			Hostname: staticName,
 			HWAddr:   staticMAC,
 			IP:       staticIP,

internal/dhcpd/v6_unix.go

@@ -30,7 +30,7 @@ type v6Server struct {
 	leasesLock sync.Mutex
 	leases     []*Lease
 	ipAddrs    [256]byte
-	sid        dhcpv6.Duid
+	sid        dhcpv6.DUID
 
 	ra raCtx // RA module
 
@@ -66,8 +66,7 @@ func (s *v6Server) ResetLeases(leases []*Lease) (err error) {
 	s.leases = nil
 	for _, l := range leases {
 		ip := net.IP(l.IP.AsSlice())
-		if l.Expiry.Unix() != leaseExpireStatic &&
-			!ip6InRange(s.conf.ipStart, ip) {
+		if !l.IsStatic && !ip6InRange(s.conf.ipStart, ip) {
 
 			log.Debug("dhcpv6: skipping a lease with IP %v: not within current IP range", l.IP)
 
@@ -89,7 +88,7 @@ func (s *v6Server) GetLeases(flags GetLeasesFlags) (leases []*Lease) {
 	leases = []*Lease{}
 	s.leasesLock.Lock()
 	for _, l := range s.leases {
-		if l.Expiry.Unix() == leaseExpireStatic {
+		if l.IsStatic {
 			if (flags & LeasesStatic) != 0 {
 				leases = append(leases, l.Clone())
 			}
@@ -150,7 +149,7 @@ func (s *v6Server) rmDynamicLease(lease *Lease) (err error) {
 		l := s.leases[i]
 
 		if bytes.Equal(l.HWAddr, lease.HWAddr) {
-			if l.Expiry.Unix() == leaseExpireStatic {
+			if l.IsStatic {
 				return fmt.Errorf("static lease already exists")
 			}
 
@@ -163,7 +162,7 @@ func (s *v6Server) rmDynamicLease(lease *Lease) (err error) {
 		}
 
 		if l.IP == lease.IP {
-			if l.Expiry.Unix() == leaseExpireStatic {
+			if l.IsStatic {
 				return fmt.Errorf("static lease already exists")
 			}
 
@@ -187,7 +186,7 @@ func (s *v6Server) AddStaticLease(l *Lease) (err error) {
 		return fmt.Errorf("validating lease: %w", err)
 	}
 
-	l.Expiry = time.Unix(leaseExpireStatic, 0)
+	l.IsStatic = true
 
 	s.leasesLock.Lock()
 	err = s.rmDynamicLease(l)
@@ -274,8 +273,7 @@ func (s *v6Server) findLease(mac net.HardwareAddr) *Lease {
 func (s *v6Server) findExpiredLease() int {
 	now := time.Now().Unix()
 	for i, lease := range s.leases {
-		if lease.Expiry.Unix() != leaseExpireStatic &&
-			lease.Expiry.Unix() <= now {
+		if !lease.IsStatic && lease.Expiry.Unix() <= now {
 			return i
 		}
 	}
@@ -421,7 +419,7 @@ func (s *v6Server) commitLease(msg *dhcpv6.Message, lease *Lease) time.Duration
 		dhcpv6.MessageTypeRenew,
 		dhcpv6.MessageTypeRebind:
 
-		if lease.Expiry.Unix() != leaseExpireStatic {
+		if !lease.IsStatic {
 			s.commitDynamicLease(lease)
 		}
 	}
@@ -588,9 +586,31 @@ func (s *v6Server) packetHandler(conn net.PacketConn, peer net.Addr, req dhcpv6.
 	}
 }
 
-// initialize RA module
-func (s *v6Server) initRA(iface *net.Interface) error {
-	// choose the source IP address - should be link-local-unicast
+// configureDNSIPAddrs updates v6Server configuration with the slice of DNS IP
+// addresses of provided interface iface.  Initializes RA module.
+func (s *v6Server) configureDNSIPAddrs(iface *net.Interface) (ok bool, err error) {
+	dnsIPAddrs, err := aghnet.IfaceDNSIPAddrs(
+		iface,
+		aghnet.IPVersion6,
+		defaultMaxAttempts,
+		defaultBackoff,
+	)
+	if err != nil {
+		return false, fmt.Errorf("interface %s: %w", iface.Name, err)
+	}
+
+	if len(dnsIPAddrs) == 0 {
+		return false, nil
+	}
+
+	s.conf.dnsIPAddrs = dnsIPAddrs
+
+	return true, s.initRA(iface)
+}
+
+// initRA initializes RA module.
+func (s *v6Server) initRA(iface *net.Interface) (err error) {
+	// Choose the source IP address - should be link-local-unicast.
 	s.ra.ipAddr = s.conf.dnsIPAddrs[0]
 	for _, ip := range s.conf.dnsIPAddrs {
 		if ip.IsLinkLocalUnicast() {
@@ -606,6 +626,7 @@ func (s *v6Server) initRA(iface *net.Interface) error {
 	s.ra.ifaceName = s.conf.InterfaceName
 	s.ra.iface = iface
 	s.ra.packetSendPeriod = 1 * time.Second
+
 	return s.ra.Init()
 }
 
@@ -625,63 +646,47 @@ func (s *v6Server) Start() (err error) {
 
 	log.Debug("dhcpv6: starting...")
 
-	dnsIPAddrs, err := aghnet.IfaceDNSIPAddrs(
-		iface,
-		aghnet.IPVersion6,
-		defaultMaxAttempts,
-		defaultBackoff,
-	)
+	ok, err := s.configureDNSIPAddrs(iface)
 	if err != nil {
-		return fmt.Errorf("interface %s: %w", ifaceName, err)
+		// Don't wrap the error, because it's informative enough as is.
+		return err
 	}
 
-	if len(dnsIPAddrs) == 0 {
+	if !ok {
 		// No available IP addresses which may appear later.
 		return nil
 	}
 
-	s.conf.dnsIPAddrs = dnsIPAddrs
-
-	err = s.initRA(iface)
-	if err != nil {
-		return err
-	}
-
-	// don't initialize DHCPv6 server if we must force the clients to use SLAAC
+	// Don't initialize DHCPv6 server if we must force the clients to use SLAAC.
 	if s.conf.RASLAACOnly {
 		log.Debug("not starting dhcpv6 server due to ra_slaac_only=true")
 
 		return nil
 	}
 
-	log.Debug("dhcpv6: listening...")
-
 	err = netutil.ValidateMAC(iface.HardwareAddr)
 	if err != nil {
 		return fmt.Errorf("validating interface %s: %w", iface.Name, err)
 	}
 
-	s.sid = dhcpv6.Duid{
-		Type:          dhcpv6.DUID_LLT,
-		HwType:        iana.HWTypeEthernet,
+	s.sid = &dhcpv6.DUIDLLT{
+		HWType:        iana.HWTypeEthernet,
 		LinkLayerAddr: iface.HardwareAddr,
 		Time:          dhcpv6.GetTime(),
 	}
 
-	laddr := &net.UDPAddr{
-		IP:   net.ParseIP("::"),
-		Port: dhcpv6.DefaultServerPort,
-	}
-	s.srv, err = server6.NewServer(iface.Name, laddr, s.packetHandler, server6.WithDebugLogger())
+	s.srv, err = server6.NewServer(iface.Name, nil, s.packetHandler, server6.WithDebugLogger())
 	if err != nil {
 		return err
 	}
 
+	log.Debug("dhcpv6: listening...")
+
 	go func() {
-		if serr := s.srv.Serve(); errors.Is(serr, net.ErrClosed) {
+		if sErr := s.srv.Serve(); errors.Is(sErr, net.ErrClosed) {
 			log.Info("dhcpv6: server is closed")
-		} else if serr != nil {
-			log.Error("dhcpv6: srv.Serve: %s", serr)
+		} else if sErr != nil {
+			log.Error("dhcpv6: srv.Serve: %s", sErr)
 		}
 	}()
 

internal/dhcpd/v6_unix_test.go

@@ -44,7 +44,7 @@ func TestV6_AddRemove_static(t *testing.T) {
 
 	assert.Equal(t, l.IP, ls[0].IP)
 	assert.Equal(t, l.HWAddr, ls[0].HWAddr)
-	assert.EqualValues(t, leaseExpireStatic, ls[0].Expiry.Unix())
+	assert.True(t, ls[0].IsStatic)
 
 	// Try to remove non-existent static lease.
 	err = s.RemoveStaticLease(&Lease{
@@ -103,7 +103,7 @@ func TestV6_AddReplace(t *testing.T) {
 	for i, l := range ls {
 		assert.Equal(t, stLeases[i].IP, l.IP)
 		assert.Equal(t, stLeases[i].HWAddr, l.HWAddr)
-		assert.EqualValues(t, leaseExpireStatic, l.Expiry.Unix())
+		assert.True(t, l.IsStatic)
 	}
 }
 
@@ -121,9 +121,8 @@ func TestV6GetLease(t *testing.T) {
 
 	dnsAddr := net.ParseIP("2000::1")
 	s.conf.dnsIPAddrs = []net.IP{dnsAddr}
-	s.sid = dhcpv6.Duid{
-		Type:          dhcpv6.DUID_LLT,
-		HwType:        iana.HWTypeEthernet,
+	s.sid = &dhcpv6.DUIDLL{
+		HWType:        iana.HWTypeEthernet,
 		LinkLayerAddr: net.HardwareAddr{0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA},
 	}
 
@@ -216,9 +215,8 @@ func TestV6GetDynamicLease(t *testing.T) {
 
 	dnsAddr := net.ParseIP("2000::1")
 	s.conf.dnsIPAddrs = []net.IP{dnsAddr}
-	s.sid = dhcpv6.Duid{
-		Type:          dhcpv6.DUID_LLT,
-		HwType:        iana.HWTypeEthernet,
+	s.sid = &dhcpv6.DUIDLL{
+		HWType:        iana.HWTypeEthernet,
 		LinkLayerAddr: net.HardwareAddr{0xAA, 0xAA, 0xAA, 0xAA, 0xAA, 0xAA},
 	}
 
@@ -327,7 +325,6 @@ func TestV6_FindMACbyIP(t *testing.T) {
 
 	s := &v6Server{
 		leases: []*Lease{{
-			Expiry:   time.Unix(leaseExpireStatic, 0),
 			Hostname: staticName,
 			HWAddr:   staticMAC,
 			IP:       staticIP,
@@ -341,7 +338,6 @@ func TestV6_FindMACbyIP(t *testing.T) {
 	}
 
 	s.leases = []*Lease{{
-		Expiry:   time.Unix(leaseExpireStatic, 0),
 		Hostname: staticName,
 		HWAddr:   staticMAC,
 		IP:       staticIP,

internal/dnsforward/dnsforward_test.go

@@ -23,6 +23,7 @@ import (
 	"github.com/AdguardTeam/AdGuardHome/internal/aghtest"
 	"github.com/AdguardTeam/AdGuardHome/internal/dhcpd"
 	"github.com/AdguardTeam/AdGuardHome/internal/filtering"
+	"github.com/AdguardTeam/AdGuardHome/internal/filtering/hashprefix"
 	"github.com/AdguardTeam/AdGuardHome/internal/filtering/safesearch"
 	"github.com/AdguardTeam/dnsproxy/proxy"
 	"github.com/AdguardTeam/dnsproxy/upstream"
@@ -915,13 +916,23 @@ func TestBlockedByHosts(t *testing.T) {
 }
 
 func TestBlockedBySafeBrowsing(t *testing.T) {
-	const hostname = "wmconvirus.narod.ru"
+	const (
+		hostname  = "wmconvirus.narod.ru"
+		cacheTime = 10 * time.Minute
+		cacheSize = 10000
+	)
+
+	sbChecker := hashprefix.New(&hashprefix.Config{
+		CacheTime: cacheTime,
+		CacheSize: cacheSize,
+		Upstream:  aghtest.NewBlockUpstream(hostname, true),
+	})
 
-	sbUps := aghtest.NewBlockUpstream(hostname, true)
 	ans4, _ := (&aghtest.TestResolver{}).HostToIPs(hostname)
 
 	filterConf := &filtering.Config{
 		SafeBrowsingEnabled: true,
+		SafeBrowsingChecker: sbChecker,
 	}
 	forwardConf := ServerConfig{
 		UDPListenAddrs: []*net.UDPAddr{{}},
@@ -935,7 +946,6 @@ func TestBlockedBySafeBrowsing(t *testing.T) {
 		},
 	}
 	s := createTestServer(t, filterConf, forwardConf, nil)
-	s.dnsFilter.SetSafeBrowsingUpstream(sbUps)
 	startDeferStop(t, s)
 	addr := s.dnsProxy.Addr(proxy.ProtoUDP)
 

internal/dnsforward/filter.go

@@ -53,14 +53,14 @@ func (s *Server) beforeRequestHandler(
 // getClientRequestFilteringSettings looks up client filtering settings using
 // the client's IP address and ID, if any, from dctx.
 func (s *Server) getClientRequestFilteringSettings(dctx *dnsContext) *filtering.Settings {
-	setts := s.dnsFilter.GetConfig()
+	setts := s.dnsFilter.Settings()
 	setts.ProtectionEnabled = dctx.protectionEnabled
 	if s.conf.FilterHandler != nil {
 		ip, _ := netutil.IPAndPortFromAddr(dctx.proxyCtx.Addr)
-		s.conf.FilterHandler(ip, dctx.clientID, &setts)
+		s.conf.FilterHandler(ip, dctx.clientID, setts)
 	}
 
-	return &setts
+	return setts
 }
 
 // filterDNSRequest applies the dnsFilter and sets dctx.proxyCtx.Res if the

internal/dnsforward/http_test.go

@@ -205,8 +205,8 @@ func TestDNSForwardHTTP_handleSetConfig(t *testing.T) {
 		wantSet: `validating upstream servers: validating upstream "!!!": not an ip:port`,
 	}, {
 		name: "bootstraps_bad",
-		wantSet: `checking bootstrap a: invalid address: ` +
-			`Resolver a is not eligible to be a bootstrap DNS server`,
+		wantSet: `checking bootstrap a: invalid address: bootstrap a:53: ` +
+			`ParseAddr("a"): unable to parse IP`,
 	}, {
 		name:    "cache_bad_ttl",
 		wantSet: `cache_ttl_min must be less or equal than cache_ttl_max`,
@@ -487,7 +487,8 @@ func TestServer_handleTestUpstreaDNS(t *testing.T) {
 		},
 		wantResp: map[string]any{
 			badUps: `upstream "` + badUps + `" fails to exchange: ` +
-				`couldn't communicate with upstream: dns: id mismatch`,
+				`couldn't communicate with upstream: exchanging with ` +
+				badUps + ` over tcp: dns: id mismatch`,
 		},
 		name: "broken",
 	}, {
@@ -497,7 +498,8 @@ func TestServer_handleTestUpstreaDNS(t *testing.T) {
 		wantResp: map[string]any{
 			goodUps: "OK",
 			badUps: `upstream "` + badUps + `" fails to exchange: ` +
-				`couldn't communicate with upstream: dns: id mismatch`,
+				`couldn't communicate with upstream: exchanging with ` +
+				badUps + ` over tcp: dns: id mismatch`,
 		},
 		name: "both",
 	}}

internal/dnsforward/msg.go

@@ -57,16 +57,13 @@ func (s *Server) genDNSFilterMessage(
 		return s.genBlockedHost(req, s.conf.SafeBrowsingBlockHost, dctx)
 	case filtering.FilteredParental:
 		return s.genBlockedHost(req, s.conf.ParentalBlockHost, dctx)
+	case filtering.FilteredSafeSearch:
+		// If Safe Search generated the necessary IP addresses, use them.
+		// Otherwise, if there were no errors, there are no addresses for the
+		// requested IP version, so produce a NODATA response.
+		return s.genResponseWithIPs(req, ipsFromRules(res.Rules))
 	default:
-		// If the query was filtered by Safe Search, filtering also must return
-		// the IP addresses that must be used in response.  Return them
-		// regardless of the filtering method.
-		ips := ipsFromRules(res.Rules)
-		if res.Reason == filtering.FilteredSafeSearch && len(ips) > 0 {
-			return s.genResponseWithIPs(req, ips)
-		}
-
-		return s.genForBlockingMode(req, ips)
+		return s.genForBlockingMode(req, ipsFromRules(res.Rules))
 	}
 }
 

internal/dnsforward/stats.go

@@ -123,7 +123,10 @@ func (s *Server) updateStats(
 	pctx := ctx.proxyCtx
 	e := stats.Entry{}
 	e.Domain = strings.ToLower(pctx.Req.Question[0].Name)
-	e.Domain = e.Domain[:len(e.Domain)-1] // remove last "."
+	if e.Domain != "." {
+		// Remove last ".", but save the domain as is for "." queries.
+		e.Domain = e.Domain[:len(e.Domain)-1]
+	}
 
 	if clientID := ctx.clientID; clientID != "" {
 		e.Client = clientID

internal/dnsforward/stats_test.go

@@ -46,6 +46,10 @@ type testStats struct {
 
 // Update implements the [stats.Interface] interface for *testStats.
 func (l *testStats) Update(e stats.Entry) {
+	if e.Domain == "" {
+		return
+	}
+
 	l.lastEntry = e
 }
 
@@ -54,9 +58,12 @@ func (l *testStats) ShouldCount(string, uint16, uint16, []string) bool {
 	return true
 }
 
-func TestProcessQueryLogsAndStats(t *testing.T) {
+func TestServer_ProcessQueryLogsAndStats(t *testing.T) {
+	const domain = "example.com."
+
 	testCases := []struct {
 		name           string
+		domain         string
 		proto          proxy.Proto
 		addr           net.Addr
 		clientID       string
@@ -67,6 +74,7 @@ func TestProcessQueryLogsAndStats(t *testing.T) {
 		wantStatResult stats.Result
 	}{{
 		name:           "success_udp",
+		domain:         domain,
 		proto:          proxy.ProtoUDP,
 		addr:           &net.UDPAddr{IP: net.IP{1, 2, 3, 4}, Port: 1234},
 		clientID:       "",
@@ -77,6 +85,7 @@ func TestProcessQueryLogsAndStats(t *testing.T) {
 		wantStatResult: stats.RNotFiltered,
 	}, {
 		name:           "success_tls_clientid",
+		domain:         domain,
 		proto:          proxy.ProtoTLS,
 		addr:           &net.TCPAddr{IP: net.IP{1, 2, 3, 4}, Port: 1234},
 		clientID:       "cli42",
@@ -87,6 +96,7 @@ func TestProcessQueryLogsAndStats(t *testing.T) {
 		wantStatResult: stats.RNotFiltered,
 	}, {
 		name:           "success_tls",
+		domain:         domain,
 		proto:          proxy.ProtoTLS,
 		addr:           &net.TCPAddr{IP: net.IP{1, 2, 3, 4}, Port: 1234},
 		clientID:       "",
@@ -97,6 +107,7 @@ func TestProcessQueryLogsAndStats(t *testing.T) {
 		wantStatResult: stats.RNotFiltered,
 	}, {
 		name:           "success_quic",
+		domain:         domain,
 		proto:          proxy.ProtoQUIC,
 		addr:           &net.UDPAddr{IP: net.IP{1, 2, 3, 4}, Port: 1234},
 		clientID:       "",
@@ -107,6 +118,7 @@ func TestProcessQueryLogsAndStats(t *testing.T) {
 		wantStatResult: stats.RNotFiltered,
 	}, {
 		name:           "success_https",
+		domain:         domain,
 		proto:          proxy.ProtoHTTPS,
 		addr:           &net.TCPAddr{IP: net.IP{1, 2, 3, 4}, Port: 1234},
 		clientID:       "",
@@ -117,6 +129,7 @@ func TestProcessQueryLogsAndStats(t *testing.T) {
 		wantStatResult: stats.RNotFiltered,
 	}, {
 		name:           "success_dnscrypt",
+		domain:         domain,
 		proto:          proxy.ProtoDNSCrypt,
 		addr:           &net.TCPAddr{IP: net.IP{1, 2, 3, 4}, Port: 1234},
 		clientID:       "",
@@ -127,6 +140,7 @@ func TestProcessQueryLogsAndStats(t *testing.T) {
 		wantStatResult: stats.RNotFiltered,
 	}, {
 		name:           "success_udp_filtered",
+		domain:         domain,
 		proto:          proxy.ProtoUDP,
 		addr:           &net.UDPAddr{IP: net.IP{1, 2, 3, 4}, Port: 1234},
 		clientID:       "",
@@ -137,6 +151,7 @@ func TestProcessQueryLogsAndStats(t *testing.T) {
 		wantStatResult: stats.RFiltered,
 	}, {
 		name:           "success_udp_sb",
+		domain:         domain,
 		proto:          proxy.ProtoUDP,
 		addr:           &net.UDPAddr{IP: net.IP{1, 2, 3, 4}, Port: 1234},
 		clientID:       "",
@@ -147,6 +162,7 @@ func TestProcessQueryLogsAndStats(t *testing.T) {
 		wantStatResult: stats.RSafeBrowsing,
 	}, {
 		name:           "success_udp_ss",
+		domain:         domain,
 		proto:          proxy.ProtoUDP,
 		addr:           &net.UDPAddr{IP: net.IP{1, 2, 3, 4}, Port: 1234},
 		clientID:       "",
@@ -157,6 +173,7 @@ func TestProcessQueryLogsAndStats(t *testing.T) {
 		wantStatResult: stats.RSafeSearch,
 	}, {
 		name:           "success_udp_pc",
+		domain:         domain,
 		proto:          proxy.ProtoUDP,
 		addr:           &net.UDPAddr{IP: net.IP{1, 2, 3, 4}, Port: 1234},
 		clientID:       "",
@@ -165,6 +182,17 @@ func TestProcessQueryLogsAndStats(t *testing.T) {
 		wantCode:       resultCodeSuccess,
 		reason:         filtering.FilteredParental,
 		wantStatResult: stats.RParental,
+	}, {
+		name:           "success_udp_pc_empty_fqdn",
+		domain:         ".",
+		proto:          proxy.ProtoUDP,
+		addr:           &net.UDPAddr{IP: net.IP{1, 2, 3, 5}, Port: 1234},
+		clientID:       "",
+		wantLogProto:   "",
+		wantStatClient: "1.2.3.5",
+		wantCode:       resultCodeSuccess,
+		reason:         filtering.FilteredParental,
+		wantStatResult: stats.RParental,
 	}}
 
 	ups, err := upstream.AddressToUpstream("1.1.1.1", nil)
@@ -181,7 +209,7 @@ func TestProcessQueryLogsAndStats(t *testing.T) {
 		t.Run(tc.name, func(t *testing.T) {
 			req := &dns.Msg{
 				Question: []dns.Question{{
-					Name: "example.com.",
+					Name: tc.domain,
 				}},
 			}
 			pctx := &proxy.DNSContext{

internal/filtering/blocked.go

@@ -3,8 +3,10 @@ package filtering
 import (
 	"encoding/json"
 	"net/http"
+	"time"
 
 	"github.com/AdguardTeam/AdGuardHome/internal/aghhttp"
+	"github.com/AdguardTeam/AdGuardHome/internal/schedule"
 	"github.com/AdguardTeam/golibs/log"
 	"github.com/AdguardTeam/urlfilter/rules"
 	"golang.org/x/exp/slices"
@@ -44,6 +46,15 @@ func initBlockedServices() {
 	log.Debug("filtering: initialized %d services", l)
 }
 
+// BlockedServices is the configuration of blocked services.
+type BlockedServices struct {
+	// Schedule is blocked services schedule for every day of the week.
+	Schedule *schedule.Weekly `yaml:"schedule"`
+
+	// IDs is the names of blocked services.
+	IDs []string `yaml:"ids"`
+}
+
 // BlockedSvcKnown returns true if a blocked service ID is known.
 func BlockedSvcKnown(s string) (ok bool) {
 	_, ok = serviceRules[s]
@@ -52,15 +63,22 @@ func BlockedSvcKnown(s string) (ok bool) {
 }
 
 // ApplyBlockedServices - set blocked services settings for this DNS request
-func (d *DNSFilter) ApplyBlockedServices(setts *Settings, list []string) {
+func (d *DNSFilter) ApplyBlockedServices(setts *Settings) {
+	d.confLock.RLock()
+	defer d.confLock.RUnlock()
+
 	setts.ServicesRules = []ServiceEntry{}
-	if list == nil {
-		d.confLock.RLock()
-		defer d.confLock.RUnlock()
 
-		list = d.Config.BlockedServices
+	bsvc := d.BlockedServices
+
+	// TODO(s.chzhen):  Use startTime from [dnsforward.dnsContext].
+	if !bsvc.Schedule.Contains(time.Now()) {
+		d.ApplyBlockedServicesList(setts, bsvc.IDs)
 	}
+}
 
+// ApplyBlockedServicesList appends filtering rules to the settings.
+func (d *DNSFilter) ApplyBlockedServicesList(setts *Settings, list []string) {
 	for _, name := range list {
 		rules, ok := serviceRules[name]
 		if !ok {
@@ -90,7 +108,7 @@ func (d *DNSFilter) handleBlockedServicesAll(w http.ResponseWriter, r *http.Requ
 
 func (d *DNSFilter) handleBlockedServicesList(w http.ResponseWriter, r *http.Request) {
 	d.confLock.RLock()
-	list := d.Config.BlockedServices
+	list := d.Config.BlockedServices.IDs
 	d.confLock.RUnlock()
 
 	_ = aghhttp.WriteJSONResponse(w, r, list)
@@ -106,7 +124,7 @@ func (d *DNSFilter) handleBlockedServicesSet(w http.ResponseWriter, r *http.Requ
 	}
 
 	d.confLock.Lock()
-	d.Config.BlockedServices = list
+	d.Config.BlockedServices.IDs = list
 	d.confLock.Unlock()
 
 	log.Debug("Updated blocked services list: %d", len(list))

internal/filtering/filtering.go

@@ -18,8 +18,6 @@ import (
 
 	"github.com/AdguardTeam/AdGuardHome/internal/aghhttp"
 	"github.com/AdguardTeam/AdGuardHome/internal/aghnet"
-	"github.com/AdguardTeam/dnsproxy/upstream"
-	"github.com/AdguardTeam/golibs/cache"
 	"github.com/AdguardTeam/golibs/errors"
 	"github.com/AdguardTeam/golibs/log"
 	"github.com/AdguardTeam/golibs/mathutil"
@@ -75,6 +73,12 @@ type Resolver interface {
 
 // Config allows you to configure DNS filtering with New() or just change variables directly.
 type Config struct {
+	// SafeBrowsingChecker is the safe browsing hash-prefix checker.
+	SafeBrowsingChecker Checker `yaml:"-"`
+
+	// ParentControl is the parental control hash-prefix checker.
+	ParentalControlChecker Checker `yaml:"-"`
+
 	// enabled is used to be returned within Settings.
 	//
 	// It is of type uint32 to be accessed by atomic.
@@ -99,9 +103,9 @@ type Config struct {
 
 	Rewrites []*LegacyRewrite `yaml:"rewrites"`
 
-	// Names of services to block (globally).
+	// BlockedServices is the configuration of blocked services.
 	// Per-client settings can override this configuration.
-	BlockedServices []string `yaml:"blocked_services"`
+	BlockedServices *BlockedServices `yaml:"blocked_services"`
 
 	// EtcHosts is a container of IP-hostname pairs taken from the operating
 	// system configuration files (e.g. /etc/hosts).
@@ -158,8 +162,22 @@ type hostChecker struct {
 	name  string
 }
 
+// Checker is used for safe browsing or parental control hash-prefix filtering.
+type Checker interface {
+	// Check returns true if request for the host should be blocked.
+	Check(host string) (block bool, err error)
+}
+
 // DNSFilter matches hostnames and DNS requests against filtering rules.
 type DNSFilter struct {
+	safeSearch SafeSearch
+
+	// safeBrowsingChecker is the safe browsing hash-prefix checker.
+	safeBrowsingChecker Checker
+
+	// parentalControl is the parental control hash-prefix checker.
+	parentalControlChecker Checker
+
 	rulesStorage    *filterlist.RuleStorage
 	filteringEngine *urlfilter.DNSEngine
 
@@ -168,14 +186,6 @@ type DNSFilter struct {
 
 	engineLock sync.RWMutex
 
-	parentalServer       string // access via methods
-	safeBrowsingServer   string // access via methods
-	parentalUpstream     upstream.Upstream
-	safeBrowsingUpstream upstream.Upstream
-
-	safebrowsingCache cache.Cache
-	parentalCache     cache.Cache
-
 	Config // for direct access by library users, even a = assignment
 	// confLock protects Config.
 	confLock sync.RWMutex
@@ -192,7 +202,6 @@ type DNSFilter struct {
 	// TODO(e.burkov):  Don't use regexp for such a simple text processing task.
 	filterTitleRegexp *regexp.Regexp
 
-	safeSearch   SafeSearch
 	hostCheckers []hostChecker
 }
 
@@ -289,12 +298,12 @@ func (d *DNSFilter) SetEnabled(enabled bool) {
 	atomic.StoreUint32(&d.enabled, mathutil.BoolToNumber[uint32](enabled))
 }
 
-// GetConfig - get configuration
-func (d *DNSFilter) GetConfig() (s Settings) {
+// Settings returns filtering settings.
+func (d *DNSFilter) Settings() (s *Settings) {
 	d.confLock.RLock()
 	defer d.confLock.RUnlock()
 
-	return Settings{
+	return &Settings{
 		FilteringEnabled:    atomic.LoadUint32(&d.Config.enabled) != 0,
 		SafeSearchEnabled:   d.Config.SafeSearchConf.Enabled,
 		SafeBrowsingEnabled: d.Config.SafeBrowsingEnabled,
@@ -940,19 +949,12 @@ func InitModule() {
 // be non-nil.
 func New(c *Config, blockFilters []Filter) (d *DNSFilter, err error) {
 	d = &DNSFilter{
-		refreshLock:       &sync.Mutex{},
-		filterTitleRegexp: regexp.MustCompile(`^! Title: +(.*)$`),
+		refreshLock:            &sync.Mutex{},
+		filterTitleRegexp:      regexp.MustCompile(`^! Title: +(.*)$`),
+		safeBrowsingChecker:    c.SafeBrowsingChecker,
+		parentalControlChecker: c.ParentalControlChecker,
 	}
 
-	d.safebrowsingCache = cache.New(cache.Config{
-		EnableLRU: true,
-		MaxSize:   c.SafeBrowsingCacheSize,
-	})
-	d.parentalCache = cache.New(cache.Config{
-		EnableLRU: true,
-		MaxSize:   c.ParentalCacheSize,
-	})
-
 	d.safeSearch = c.SafeSearch
 
 	d.hostCheckers = []hostChecker{{
@@ -977,11 +979,6 @@ func New(c *Config, blockFilters []Filter) (d *DNSFilter, err error) {
 
 	defer func() { err = errors.Annotate(err, "filtering: %w") }()
 
-	err = d.initSecurityServices()
-	if err != nil {
-		return nil, fmt.Errorf("initializing services: %s", err)
-	}
-
 	d.Config = *c
 	d.filtersMu = &sync.RWMutex{}
 
@@ -990,16 +987,19 @@ func New(c *Config, blockFilters []Filter) (d *DNSFilter, err error) {
 		return nil, fmt.Errorf("rewrites: preparing: %s", err)
 	}
 
-	bsvcs := []string{}
-	for _, s := range d.BlockedServices {
-		if !BlockedSvcKnown(s) {
-			log.Debug("skipping unknown blocked-service %q", s)
+	if d.BlockedServices != nil {
+		bsvcs := []string{}
+		for _, s := range d.BlockedServices.IDs {
+			if !BlockedSvcKnown(s) {
+				log.Debug("skipping unknown blocked-service %q", s)
 
-			continue
+				continue
+			}
+
+			bsvcs = append(bsvcs, s)
 		}
-		bsvcs = append(bsvcs, s)
+		d.BlockedServices.IDs = bsvcs
 	}
-	d.BlockedServices = bsvcs
 
 	if blockFilters != nil {
 		err = d.initFiltering(nil, blockFilters)
@@ -1038,3 +1038,69 @@ func (d *DNSFilter) Start() {
 	// So for now we just start this periodic task from here.
 	go d.periodicallyRefreshFilters()
 }
+
+// Safe browsing and parental control methods.
+
+// TODO(a.garipov): Unify with checkParental.
+func (d *DNSFilter) checkSafeBrowsing(
+	host string,
+	_ uint16,
+	setts *Settings,
+) (res Result, err error) {
+	if !setts.ProtectionEnabled || !setts.SafeBrowsingEnabled {
+		return Result{}, nil
+	}
+
+	if log.GetLevel() >= log.DEBUG {
+		timer := log.StartTimer()
+		defer timer.LogElapsed("safebrowsing lookup for %q", host)
+	}
+
+	res = Result{
+		Rules: []*ResultRule{{
+			Text:         "adguard-malware-shavar",
+			FilterListID: SafeBrowsingListID,
+		}},
+		Reason:     FilteredSafeBrowsing,
+		IsFiltered: true,
+	}
+
+	block, err := d.safeBrowsingChecker.Check(host)
+	if !block || err != nil {
+		return Result{}, err
+	}
+
+	return res, nil
+}
+
+// TODO(a.garipov): Unify with checkSafeBrowsing.
+func (d *DNSFilter) checkParental(
+	host string,
+	_ uint16,
+	setts *Settings,
+) (res Result, err error) {
+	if !setts.ProtectionEnabled || !setts.ParentalEnabled {
+		return Result{}, nil
+	}
+
+	if log.GetLevel() >= log.DEBUG {
+		timer := log.StartTimer()
+		defer timer.LogElapsed("parental lookup for %q", host)
+	}
+
+	res = Result{
+		Rules: []*ResultRule{{
+			Text:         "parental CATEGORY_BLACKLISTED",
+			FilterListID: ParentalListID,
+		}},
+		Reason:     FilteredParental,
+		IsFiltered: true,
+	}
+
+	block, err := d.parentalControlChecker.Check(host)
+	if !block || err != nil {
+		return Result{}, err
+	}
+
+	return res, nil
+}

internal/filtering/filtering_test.go

@@ -7,7 +7,7 @@ import (
 	"testing"
 
 	"github.com/AdguardTeam/AdGuardHome/internal/aghtest"
-	"github.com/AdguardTeam/golibs/cache"
+	"github.com/AdguardTeam/AdGuardHome/internal/filtering/hashprefix"
 	"github.com/AdguardTeam/golibs/log"
 	"github.com/AdguardTeam/golibs/testutil"
 	"github.com/AdguardTeam/urlfilter/rules"
@@ -27,17 +27,6 @@ const (
 
 // Helpers.
 
-func purgeCaches(d *DNSFilter) {
-	for _, c := range []cache.Cache{
-		d.safebrowsingCache,
-		d.parentalCache,
-	} {
-		if c != nil {
-			c.Clear()
-		}
-	}
-}
-
 func newForTest(t testing.TB, c *Config, filters []Filter) (f *DNSFilter, setts *Settings) {
 	setts = &Settings{
 		ProtectionEnabled: true,
@@ -58,11 +47,17 @@ func newForTest(t testing.TB, c *Config, filters []Filter) (f *DNSFilter, setts
 	f, err := New(c, filters)
 	require.NoError(t, err)
 
-	purgeCaches(f)
-
 	return f, setts
 }
 
+func newChecker(host string) Checker {
+	return hashprefix.New(&hashprefix.Config{
+		CacheTime: 10,
+		CacheSize: 100000,
+		Upstream:  aghtest.NewBlockUpstream(host, true),
+	})
+}
+
 func (d *DNSFilter) checkMatch(t *testing.T, hostname string, setts *Settings) {
 	t.Helper()
 
@@ -175,10 +170,14 @@ func TestSafeBrowsing(t *testing.T) {
 	aghtest.ReplaceLogWriter(t, logOutput)
 	aghtest.ReplaceLogLevel(t, log.DEBUG)
 
-	d, setts := newForTest(t, &Config{SafeBrowsingEnabled: true}, nil)
+	sbChecker := newChecker(sbBlocked)
+
+	d, setts := newForTest(t, &Config{
+		SafeBrowsingEnabled: true,
+		SafeBrowsingChecker: sbChecker,
+	}, nil)
 	t.Cleanup(d.Close)
 
-	d.SetSafeBrowsingUpstream(aghtest.NewBlockUpstream(sbBlocked, true))
 	d.checkMatch(t, sbBlocked, setts)
 
 	require.Contains(t, logOutput.String(), fmt.Sprintf("safebrowsing lookup for %q", sbBlocked))
@@ -188,18 +187,17 @@ func TestSafeBrowsing(t *testing.T) {
 	d.checkMatchEmpty(t, pcBlocked, setts)
 
 	// Cached result.
-	d.safeBrowsingServer = "127.0.0.1"
 	d.checkMatch(t, sbBlocked, setts)
 	d.checkMatchEmpty(t, pcBlocked, setts)
-	d.safeBrowsingServer = defaultSafebrowsingServer
 }
 
 func TestParallelSB(t *testing.T) {
-	d, setts := newForTest(t, &Config{SafeBrowsingEnabled: true}, nil)
+	d, setts := newForTest(t, &Config{
+		SafeBrowsingEnabled: true,
+		SafeBrowsingChecker: newChecker(sbBlocked),
+	}, nil)
 	t.Cleanup(d.Close)
 
-	d.SetSafeBrowsingUpstream(aghtest.NewBlockUpstream(sbBlocked, true))
-
 	t.Run("group", func(t *testing.T) {
 		for i := 0; i < 100; i++ {
 			t.Run(fmt.Sprintf("aaa%d", i), func(t *testing.T) {
@@ -220,10 +218,12 @@ func TestParentalControl(t *testing.T) {
 	aghtest.ReplaceLogWriter(t, logOutput)
 	aghtest.ReplaceLogLevel(t, log.DEBUG)
 
-	d, setts := newForTest(t, &Config{ParentalEnabled: true}, nil)
+	d, setts := newForTest(t, &Config{
+		ParentalEnabled:        true,
+		ParentalControlChecker: newChecker(pcBlocked),
+	}, nil)
 	t.Cleanup(d.Close)
 
-	d.SetParentalUpstream(aghtest.NewBlockUpstream(pcBlocked, true))
 	d.checkMatch(t, pcBlocked, setts)
 	require.Contains(t, logOutput.String(), fmt.Sprintf("parental lookup for %q", pcBlocked))
 
@@ -233,7 +233,6 @@ func TestParentalControl(t *testing.T) {
 	d.checkMatchEmpty(t, "api.jquery.com", setts)
 
 	// Test cached result.
-	d.parentalServer = "127.0.0.1"
 	d.checkMatch(t, pcBlocked, setts)
 	d.checkMatchEmpty(t, "yandex.ru", setts)
 }
@@ -593,8 +592,10 @@ func applyClientSettings(setts *Settings) {
 func TestClientSettings(t *testing.T) {
 	d, setts := newForTest(t,
 		&Config{
-			ParentalEnabled:     true,
-			SafeBrowsingEnabled: false,
+			ParentalEnabled:        true,
+			SafeBrowsingEnabled:    false,
+			SafeBrowsingChecker:    newChecker(sbBlocked),
+			ParentalControlChecker: newChecker(pcBlocked),
 		},
 		[]Filter{{
 			ID: 0, Data: []byte("||example.org^\n"),
@@ -602,9 +603,6 @@ func TestClientSettings(t *testing.T) {
 	)
 	t.Cleanup(d.Close)
 
-	d.SetParentalUpstream(aghtest.NewBlockUpstream(pcBlocked, true))
-	d.SetSafeBrowsingUpstream(aghtest.NewBlockUpstream(sbBlocked, true))
-
 	type testCase struct {
 		name       string
 		host       string
@@ -665,11 +663,12 @@ func TestClientSettings(t *testing.T) {
 // Benchmarks.
 
 func BenchmarkSafeBrowsing(b *testing.B) {
-	d, setts := newForTest(b, &Config{SafeBrowsingEnabled: true}, nil)
+	d, setts := newForTest(b, &Config{
+		SafeBrowsingEnabled: true,
+		SafeBrowsingChecker: newChecker(sbBlocked),
+	}, nil)
 	b.Cleanup(d.Close)
 
-	d.SetSafeBrowsingUpstream(aghtest.NewBlockUpstream(sbBlocked, true))
-
 	for n := 0; n < b.N; n++ {
 		res, err := d.CheckHost(sbBlocked, dns.TypeA, setts)
 		require.NoError(b, err)
@@ -679,11 +678,12 @@ func BenchmarkSafeBrowsing(b *testing.B) {
 }
 
 func BenchmarkSafeBrowsingParallel(b *testing.B) {
-	d, setts := newForTest(b, &Config{SafeBrowsingEnabled: true}, nil)
+	d, setts := newForTest(b, &Config{
+		SafeBrowsingEnabled: true,
+		SafeBrowsingChecker: newChecker(sbBlocked),
+	}, nil)
 	b.Cleanup(d.Close)
 
-	d.SetSafeBrowsingUpstream(aghtest.NewBlockUpstream(sbBlocked, true))
-
 	b.RunParallel(func(pb *testing.PB) {
 		for pb.Next() {
 			res, err := d.CheckHost(sbBlocked, dns.TypeA, setts)

internal/filtering/hashprefix/cache.go

@@ -0,0 +1,130 @@
+package hashprefix
+
+import (
+	"encoding/binary"
+	"time"
+
+	"github.com/AdguardTeam/golibs/log"
+)
+
+// expirySize is the size of expiry in cacheItem.
+const expirySize = 8
+
+// cacheItem represents an item that we will store in the cache.
+type cacheItem struct {
+	// expiry is the time when cacheItem will expire.
+	expiry time.Time
+
+	// hashes is the hashed hostnames.
+	hashes []hostnameHash
+}
+
+// toCacheItem decodes cacheItem from data.  data must be at least equal to
+// expiry size.
+func toCacheItem(data []byte) *cacheItem {
+	t := time.Unix(int64(binary.BigEndian.Uint64(data)), 0)
+
+	data = data[expirySize:]
+	hashes := make([]hostnameHash, len(data)/hashSize)
+
+	for i := 0; i < len(data); i += hashSize {
+		var hash hostnameHash
+		copy(hash[:], data[i:i+hashSize])
+		hashes = append(hashes, hash)
+	}
+
+	return &cacheItem{
+		expiry: t,
+		hashes: hashes,
+	}
+}
+
+// fromCacheItem encodes cacheItem into data.
+func fromCacheItem(item *cacheItem) (data []byte) {
+	data = make([]byte, len(item.hashes)*hashSize+expirySize)
+	expiry := item.expiry.Unix()
+	binary.BigEndian.PutUint64(data[:expirySize], uint64(expiry))
+
+	for _, v := range item.hashes {
+		// nolint:looppointer // The subsilce is used for a copy.
+		data = append(data, v[:]...)
+	}
+
+	return data
+}
+
+// findInCache finds hashes in the cache.  If nothing found returns list of
+// hashes, prefixes of which will be sent to upstream.
+func (c *Checker) findInCache(
+	hashes []hostnameHash,
+) (found, blocked bool, hashesToRequest []hostnameHash) {
+	now := time.Now()
+
+	i := 0
+	for _, hash := range hashes {
+		// nolint:looppointer // The subsilce is used for a safe cache lookup.
+		data := c.cache.Get(hash[:prefixLen])
+		if data == nil {
+			hashes[i] = hash
+			i++
+
+			continue
+		}
+
+		item := toCacheItem(data)
+		if now.After(item.expiry) {
+			hashes[i] = hash
+			i++
+
+			continue
+		}
+
+		if ok := findMatch(hashes, item.hashes); ok {
+			return true, true, nil
+		}
+	}
+
+	if i == 0 {
+		return true, false, nil
+	}
+
+	return false, false, hashes[:i]
+}
+
+// storeInCache caches hashes.
+func (c *Checker) storeInCache(hashesToRequest, respHashes []hostnameHash) {
+	hashToStore := make(map[prefix][]hostnameHash)
+
+	for _, hash := range respHashes {
+		var pref prefix
+		// nolint:looppointer // The subsilce is used for a copy.
+		copy(pref[:], hash[:])
+
+		hashToStore[pref] = append(hashToStore[pref], hash)
+	}
+
+	for pref, hash := range hashToStore {
+		// nolint:looppointer // The subsilce is used for a safe cache lookup.
+		c.setCache(pref[:], hash)
+	}
+
+	for _, hash := range hashesToRequest {
+		// nolint:looppointer // The subsilce is used for a safe cache lookup.
+		pref := hash[:prefixLen]
+		val := c.cache.Get(pref)
+		if val == nil {
+			c.setCache(pref, nil)
+		}
+	}
+}
+
+// setCache stores hash in cache.
+func (c *Checker) setCache(pref []byte, hashes []hostnameHash) {
+	item := &cacheItem{
+		expiry: time.Now().Add(c.cacheTime),
+		hashes: hashes,
+	}
+
+	c.cache.Set(pref, fromCacheItem(item))
+	log.Debug("%s: stored in cache: %v", c.svc, pref)
+}

internal/filtering/hashprefix/hashprefix.go

@@ -0,0 +1,245 @@
+// Package hashprefix used for safe browsing and parent control.
+package hashprefix
+
+import (
+	"crypto/sha256"
+	"encoding/hex"
+	"fmt"
+	"strings"
+	"time"
+
+	"github.com/AdguardTeam/dnsproxy/upstream"
+	"github.com/AdguardTeam/golibs/cache"
+	"github.com/AdguardTeam/golibs/log"
+	"github.com/AdguardTeam/golibs/netutil"
+	"github.com/AdguardTeam/golibs/stringutil"
+	"github.com/miekg/dns"
+	"golang.org/x/exp/slices"
+	"golang.org/x/net/publicsuffix"
+)
+
+const (
+	// prefixLen is the length of the hash prefix of the filtered hostname.
+	prefixLen = 2
+
+	// hashSize is the size of hashed hostname.
+	hashSize = sha256.Size
+
+	// hexSize is the size of hexadecimal representation of hashed hostname.
+	hexSize = hashSize * 2
+)
+
+// prefix is the type of the SHA256 hash prefix used to match against the
+// domain-name database.
+type prefix [prefixLen]byte
+
+// hostnameHash is the hashed hostname.
+//
+// TODO(s.chzhen):  Split into prefix and suffix.
+type hostnameHash [hashSize]byte
+
+// findMatch returns true if one of the a hostnames matches one of the b.
+func findMatch(a, b []hostnameHash) (matched bool) {
+	for _, hash := range a {
+		if slices.Contains(b, hash) {
+			return true
+		}
+	}
+
+	return false
+}
+
+// Config is the configuration structure for safe browsing and parental
+// control.
+type Config struct {
+	// Upstream is the upstream DNS server.
+	Upstream upstream.Upstream
+
+	// ServiceName is the name of the service.
+	ServiceName string
+
+	// TXTSuffix is the TXT suffix for DNS request.
+	TXTSuffix string
+
+	// CacheTime is the time period to store hash.
+	CacheTime time.Duration
+
+	// CacheSize is the maximum size of the cache.  If it's zero, cache size is
+	// unlimited.
+	CacheSize uint
+}
+
+type Checker struct {
+	// upstream is the upstream DNS server.
+	upstream upstream.Upstream
+
+	// cache stores hostname hashes.
+	cache cache.Cache
+
+	// svc is the name of the service.
+	svc string
+
+	// txtSuffix is the TXT suffix for DNS request.
+	txtSuffix string
+
+	// cacheTime is the time period to store hash.
+	cacheTime time.Duration
+}
+
+// New returns Checker.
+func New(conf *Config) (c *Checker) {
+	return &Checker{
+		upstream: conf.Upstream,
+		cache: cache.New(cache.Config{
+			EnableLRU: true,
+			MaxSize:   conf.CacheSize,
+		}),
+		svc:       conf.ServiceName,
+		txtSuffix: conf.TXTSuffix,
+		cacheTime: conf.CacheTime,
+	}
+}
+
+// Check returns true if request for the host should be blocked.
+func (c *Checker) Check(host string) (ok bool, err error) {
+	hashes := hostnameToHashes(host)
+
+	found, blocked, hashesToRequest := c.findInCache(hashes)
+	if found {
+		log.Debug("%s: found %q in cache, blocked: %t", c.svc, host, blocked)
+
+		return blocked, nil
+	}
+
+	question := c.getQuestion(hashesToRequest)
+
+	log.Debug("%s: checking %s: %s", c.svc, host, question)
+	req := (&dns.Msg{}).SetQuestion(question, dns.TypeTXT)
+
+	resp, err := c.upstream.Exchange(req)
+	if err != nil {
+		return false, fmt.Errorf("getting hashes: %w", err)
+	}
+
+	matched, receivedHashes := c.processAnswer(hashesToRequest, resp, host)
+
+	c.storeInCache(hashesToRequest, receivedHashes)
+
+	return matched, nil
+}
+
+// hostnameToHashes returns hashes that should be checked by the hash prefix
+// filter.
+func hostnameToHashes(host string) (hashes []hostnameHash) {
+	// subDomainNum defines how many labels should be hashed to match against a
+	// hash prefix filter.
+	const subDomainNum = 4
+
+	pubSuf, icann := publicsuffix.PublicSuffix(host)
+	if !icann {
+		// Check the full private domain space.
+		pubSuf = ""
+	}
+
+	nDots := 0
+	i := strings.LastIndexFunc(host, func(r rune) (ok bool) {
+		if r == '.' {
+			nDots++
+		}
+
+		return nDots == subDomainNum
+	})
+	if i != -1 {
+		host = host[i+1:]
+	}
+
+	sub := netutil.Subdomains(host)
+
+	for _, s := range sub {
+		if s == pubSuf {
+			break
+		}
+
+		sum := sha256.Sum256([]byte(s))
+		hashes = append(hashes, sum)
+	}
+
+	return hashes
+}
+
+// getQuestion combines hexadecimal encoded prefixes of hashed hostnames into
+// string.
+func (c *Checker) getQuestion(hashes []hostnameHash) (q string) {
+	b := &strings.Builder{}
+
+	for _, hash := range hashes {
+		// nolint:looppointer // The subsilce is used for safe hex encoding.
+		stringutil.WriteToBuilder(b, hex.EncodeToString(hash[:prefixLen]), ".")
+	}
+
+	stringutil.WriteToBuilder(b, c.txtSuffix)
+
+	return b.String()
+}
+
+// processAnswer returns true if DNS response matches the hash, and received
+// hashed hostnames from the upstream.
+func (c *Checker) processAnswer(
+	hashesToRequest []hostnameHash,
+	resp *dns.Msg,
+	host string,
+) (matched bool, receivedHashes []hostnameHash) {
+	txtCount := 0
+
+	for _, a := range resp.Answer {
+		txt, ok := a.(*dns.TXT)
+		if !ok {
+			continue
+		}
+
+		txtCount++
+
+		receivedHashes = c.appendHashesFromTXT(receivedHashes, txt, host)
+	}
+
+	log.Debug("%s: received answer for %s with %d TXT count", c.svc, host, txtCount)
+
+	matched = findMatch(hashesToRequest, receivedHashes)
+	if matched {
+		log.Debug("%s: matched %s", c.svc, host)
+
+		return true, receivedHashes
+	}
+
+	return false, receivedHashes
+}
+
+// appendHashesFromTXT appends received hashed hostnames.
+func (c *Checker) appendHashesFromTXT(
+	hashes []hostnameHash,
+	txt *dns.TXT,
+	host string,
+) (receivedHashes []hostnameHash) {
+	log.Debug("%s: received hashes for %s: %v", c.svc, host, txt.Txt)
+
+	for _, t := range txt.Txt {
+		if len(t) != hexSize {
+			log.Debug("%s: wrong hex size %d for %s %s", c.svc, len(t), host, t)
+
+			continue
+		}
+
+		buf, err := hex.DecodeString(t)
+		if err != nil {
+			log.Debug("%s: decoding hex string %s: %s", c.svc, t, err)
+
+			continue
+		}
+
+		var hash hostnameHash
+		copy(hash[:], buf)
+		hashes = append(hashes, hash)
+	}
+
+	return hashes
+}

internal/filtering/hashprefix/hashprefix_internal_test.go

@@ -0,0 +1,248 @@
+package hashprefix
+
+import (
+	"crypto/sha256"
+	"encoding/hex"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/AdguardTeam/AdGuardHome/internal/aghtest"
+	"github.com/AdguardTeam/golibs/cache"
+	"github.com/miekg/dns"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"golang.org/x/exp/slices"
+)
+
+const (
+	cacheTime = 10 * time.Minute
+	cacheSize = 10000
+)
+
+func TestChcker_getQuestion(t *testing.T) {
+	const suf = "sb.dns.adguard.com."
+
+	// test hostnameToHashes()
+	hashes := hostnameToHashes("1.2.3.sub.host.com")
+	assert.Len(t, hashes, 3)
+
+	hash := sha256.Sum256([]byte("3.sub.host.com"))
+	hexPref1 := hex.EncodeToString(hash[:prefixLen])
+	assert.True(t, slices.Contains(hashes, hash))
+
+	hash = sha256.Sum256([]byte("sub.host.com"))
+	hexPref2 := hex.EncodeToString(hash[:prefixLen])
+	assert.True(t, slices.Contains(hashes, hash))
+
+	hash = sha256.Sum256([]byte("host.com"))
+	hexPref3 := hex.EncodeToString(hash[:prefixLen])
+	assert.True(t, slices.Contains(hashes, hash))
+
+	hash = sha256.Sum256([]byte("com"))
+	assert.False(t, slices.Contains(hashes, hash))
+
+	c := &Checker{
+		svc:       "SafeBrowsing",
+		txtSuffix: suf,
+	}
+
+	q := c.getQuestion(hashes)
+
+	assert.Contains(t, q, hexPref1)
+	assert.Contains(t, q, hexPref2)
+	assert.Contains(t, q, hexPref3)
+	assert.True(t, strings.HasSuffix(q, suf))
+}
+
+func TestHostnameToHashes(t *testing.T) {
+	testCases := []struct {
+		name    string
+		host    string
+		wantLen int
+	}{{
+		name:    "basic",
+		host:    "example.com",
+		wantLen: 1,
+	}, {
+		name:    "sub_basic",
+		host:    "www.example.com",
+		wantLen: 2,
+	}, {
+		name:    "private_domain",
+		host:    "foo.co.uk",
+		wantLen: 1,
+	}, {
+		name:    "sub_private_domain",
+		host:    "bar.foo.co.uk",
+		wantLen: 2,
+	}, {
+		name:    "private_domain_v2",
+		host:    "foo.blogspot.co.uk",
+		wantLen: 4,
+	}, {
+		name:    "sub_private_domain_v2",
+		host:    "bar.foo.blogspot.co.uk",
+		wantLen: 4,
+	}}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			hashes := hostnameToHashes(tc.host)
+			assert.Len(t, hashes, tc.wantLen)
+		})
+	}
+}
+
+func TestChecker_storeInCache(t *testing.T) {
+	c := &Checker{
+		svc:       "SafeBrowsing",
+		cacheTime: cacheTime,
+	}
+	conf := cache.Config{}
+	c.cache = cache.New(conf)
+
+	// store in cache hashes for "3.sub.host.com" and "host.com"
+	//  and empty data for hash-prefix for "sub.host.com"
+	hashes := []hostnameHash{}
+	hash := sha256.Sum256([]byte("sub.host.com"))
+	hashes = append(hashes, hash)
+	var hashesArray []hostnameHash
+	hash4 := sha256.Sum256([]byte("3.sub.host.com"))
+	hashesArray = append(hashesArray, hash4)
+	hash2 := sha256.Sum256([]byte("host.com"))
+	hashesArray = append(hashesArray, hash2)
+	c.storeInCache(hashes, hashesArray)
+
+	// match "3.sub.host.com" or "host.com" from cache
+	hashes = []hostnameHash{}
+	hash = sha256.Sum256([]byte("3.sub.host.com"))
+	hashes = append(hashes, hash)
+	hash = sha256.Sum256([]byte("sub.host.com"))
+	hashes = append(hashes, hash)
+	hash = sha256.Sum256([]byte("host.com"))
+	hashes = append(hashes, hash)
+	found, blocked, _ := c.findInCache(hashes)
+	assert.True(t, found)
+	assert.True(t, blocked)
+
+	// match "sub.host.com" from cache
+	hashes = []hostnameHash{}
+	hash = sha256.Sum256([]byte("sub.host.com"))
+	hashes = append(hashes, hash)
+	found, blocked, _ = c.findInCache(hashes)
+	assert.True(t, found)
+	assert.False(t, blocked)
+
+	// Match "sub.host.com" from cache.  Another hash for "host.example" is not
+	// in the cache, so get data for it from the server.
+	hashes = []hostnameHash{}
+	hash = sha256.Sum256([]byte("sub.host.com"))
+	hashes = append(hashes, hash)
+	hash = sha256.Sum256([]byte("host.example"))
+	hashes = append(hashes, hash)
+	found, _, hashesToRequest := c.findInCache(hashes)
+	assert.False(t, found)
+
+	hash = sha256.Sum256([]byte("sub.host.com"))
+	ok := slices.Contains(hashesToRequest, hash)
+	assert.False(t, ok)
+
+	hash = sha256.Sum256([]byte("host.example"))
+	ok = slices.Contains(hashesToRequest, hash)
+	assert.True(t, ok)
+
+	c = &Checker{
+		svc:       "SafeBrowsing",
+		cacheTime: cacheTime,
+	}
+	c.cache = cache.New(cache.Config{})
+
+	hashes = []hostnameHash{}
+	hash = sha256.Sum256([]byte("sub.host.com"))
+	hashes = append(hashes, hash)
+
+	c.cache.Set(hash[:prefixLen], make([]byte, expirySize+hashSize))
+	found, _, _ = c.findInCache(hashes)
+	assert.False(t, found)
+}
+
+func TestChecker_Check(t *testing.T) {
+	const hostname = "example.org"
+
+	testCases := []struct {
+		name      string
+		wantBlock bool
+	}{{
+		name:      "sb_no_block",
+		wantBlock: false,
+	}, {
+		name:      "sb_block",
+		wantBlock: true,
+	}, {
+		name:      "pc_no_block",
+		wantBlock: false,
+	}, {
+		name:      "pc_block",
+		wantBlock: true,
+	}}
+
+	for _, tc := range testCases {
+		c := New(&Config{
+			CacheTime: cacheTime,
+			CacheSize: cacheSize,
+		})
+
+		// Prepare the upstream.
+		ups := aghtest.NewBlockUpstream(hostname, tc.wantBlock)
+
+		var numReq int
+		onExchange := ups.OnExchange
+		ups.OnExchange = func(req *dns.Msg) (resp *dns.Msg, err error) {
+			numReq++
+
+			return onExchange(req)
+		}
+
+		c.upstream = ups
+
+		t.Run(tc.name, func(t *testing.T) {
+			// Firstly, check the request blocking.
+			hits := 0
+			res := false
+			res, err := c.Check(hostname)
+			require.NoError(t, err)
+
+			if tc.wantBlock {
+				assert.True(t, res)
+				hits++
+			} else {
+				require.False(t, res)
+			}
+
+			// Check the cache state, check the response is now cached.
+			assert.Equal(t, 1, c.cache.Stats().Count)
+			assert.Equal(t, hits, c.cache.Stats().Hit)
+
+			// There was one request to an upstream.
+			assert.Equal(t, 1, numReq)
+
+			// Now make the same request to check the cache was used.
+			res, err = c.Check(hostname)
+			require.NoError(t, err)
+
+			if tc.wantBlock {
+				assert.True(t, res)
+			} else {
+				require.False(t, res)
+			}
+
+			// Check the cache state, it should've been used.
+			assert.Equal(t, 1, c.cache.Stats().Count)
+			assert.Equal(t, hits+1, c.cache.Stats().Hit)
+
+			// Check that there were no additional requests.
+			assert.Equal(t, 1, numReq)
+		})
+	}
+}

internal/filtering/http.go

@@ -8,6 +8,7 @@ import (
 	"net/url"
 	"os"
 	"path/filepath"
+	"sync"
 	"time"
 
 	"github.com/AdguardTeam/AdGuardHome/internal/aghhttp"
@@ -415,12 +416,12 @@ type checkHostResp struct {
 func (d *DNSFilter) handleCheckHost(w http.ResponseWriter, r *http.Request) {
 	host := r.URL.Query().Get("name")
 
-	setts := d.GetConfig()
+	setts := d.Settings()
 	setts.FilteringEnabled = true
 	setts.ProtectionEnabled = true
 
-	d.ApplyBlockedServices(&setts, nil)
-	result, err := d.CheckHost(host, dns.TypeA, &setts)
+	d.ApplyBlockedServices(setts)
+	result, err := d.CheckHost(host, dns.TypeA, setts)
 	if err != nil {
 		aghhttp.Error(
 			r,
@@ -458,6 +459,80 @@ func (d *DNSFilter) handleCheckHost(w http.ResponseWriter, r *http.Request) {
 	_ = aghhttp.WriteJSONResponse(w, r, resp)
 }
 
+// setProtectedBool sets the value of a boolean pointer under a lock.  l must
+// protect the value under ptr.
+//
+// TODO(e.burkov):  Make it generic?
+func setProtectedBool(mu *sync.RWMutex, ptr *bool, val bool) {
+	mu.Lock()
+	defer mu.Unlock()
+
+	*ptr = val
+}
+
+// protectedBool gets the value of a boolean pointer under a read lock.  l must
+// protect the value under ptr.
+//
+// TODO(e.burkov):  Make it generic?
+func protectedBool(mu *sync.RWMutex, ptr *bool) (val bool) {
+	mu.RLock()
+	defer mu.RUnlock()
+
+	return *ptr
+}
+
+// handleSafeBrowsingEnable is the handler for the POST
+// /control/safebrowsing/enable HTTP API.
+func (d *DNSFilter) handleSafeBrowsingEnable(w http.ResponseWriter, r *http.Request) {
+	setProtectedBool(&d.confLock, &d.Config.SafeBrowsingEnabled, true)
+	d.Config.ConfigModified()
+}
+
+// handleSafeBrowsingDisable is the handler for the POST
+// /control/safebrowsing/disable HTTP API.
+func (d *DNSFilter) handleSafeBrowsingDisable(w http.ResponseWriter, r *http.Request) {
+	setProtectedBool(&d.confLock, &d.Config.SafeBrowsingEnabled, false)
+	d.Config.ConfigModified()
+}
+
+// handleSafeBrowsingStatus is the handler for the GET
+// /control/safebrowsing/status HTTP API.
+func (d *DNSFilter) handleSafeBrowsingStatus(w http.ResponseWriter, r *http.Request) {
+	resp := &struct {
+		Enabled bool `json:"enabled"`
+	}{
+		Enabled: protectedBool(&d.confLock, &d.Config.SafeBrowsingEnabled),
+	}
+
+	_ = aghhttp.WriteJSONResponse(w, r, resp)
+}
+
+// handleParentalEnable is the handler for the POST /control/parental/enable
+// HTTP API.
+func (d *DNSFilter) handleParentalEnable(w http.ResponseWriter, r *http.Request) {
+	setProtectedBool(&d.confLock, &d.Config.ParentalEnabled, true)
+	d.Config.ConfigModified()
+}
+
+// handleParentalDisable is the handler for the POST /control/parental/disable
+// HTTP API.
+func (d *DNSFilter) handleParentalDisable(w http.ResponseWriter, r *http.Request) {
+	setProtectedBool(&d.confLock, &d.Config.ParentalEnabled, false)
+	d.Config.ConfigModified()
+}
+
+// handleParentalStatus is the handler for the GET /control/parental/status
+// HTTP API.
+func (d *DNSFilter) handleParentalStatus(w http.ResponseWriter, r *http.Request) {
+	resp := &struct {
+		Enabled bool `json:"enabled"`
+	}{
+		Enabled: protectedBool(&d.confLock, &d.Config.ParentalEnabled),
+	}
+
+	_ = aghhttp.WriteJSONResponse(w, r, resp)
+}
+
 // RegisterFilteringHandlers - register handlers
 func (d *DNSFilter) RegisterFilteringHandlers() {
 	registerHTTP := d.HTTPRegister
@@ -480,6 +555,7 @@ func (d *DNSFilter) RegisterFilteringHandlers() {
 
 	registerHTTP(http.MethodGet, "/control/rewrite/list", d.handleRewriteList)
 	registerHTTP(http.MethodPost, "/control/rewrite/add", d.handleRewriteAdd)
+	registerHTTP(http.MethodPut, "/control/rewrite/update", d.handleRewriteUpdate)
 	registerHTTP(http.MethodPost, "/control/rewrite/delete", d.handleRewriteDelete)
 
 	registerHTTP(http.MethodGet, "/control/blocked_services/services", d.handleBlockedServicesIDs)

internal/filtering/http_test.go

@@ -8,6 +8,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/AdguardTeam/golibs/testutil"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
@@ -136,3 +137,171 @@ func TestDNSFilter_handleFilteringSetURL(t *testing.T) {
 		})
 	}
 }
+
+func TestDNSFilter_handleSafeBrowsingStatus(t *testing.T) {
+	const (
+		testTimeout = time.Second
+		statusURL   = "/control/safebrowsing/status"
+	)
+
+	confModCh := make(chan struct{})
+	filtersDir := t.TempDir()
+
+	testCases := []struct {
+		name       string
+		url        string
+		enabled    bool
+		wantStatus assert.BoolAssertionFunc
+	}{{
+		name:       "enable_off",
+		url:        "/control/safebrowsing/enable",
+		enabled:    false,
+		wantStatus: assert.True,
+	}, {
+		name:       "enable_on",
+		url:        "/control/safebrowsing/enable",
+		enabled:    true,
+		wantStatus: assert.True,
+	}, {
+		name:       "disable_on",
+		url:        "/control/safebrowsing/disable",
+		enabled:    true,
+		wantStatus: assert.False,
+	}, {
+		name:       "disable_off",
+		url:        "/control/safebrowsing/disable",
+		enabled:    false,
+		wantStatus: assert.False,
+	}}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			handlers := make(map[string]http.Handler)
+
+			d, err := New(&Config{
+				ConfigModified: func() {
+					testutil.RequireSend(testutil.PanicT{}, confModCh, struct{}{}, testTimeout)
+				},
+				DataDir: filtersDir,
+				HTTPRegister: func(_, url string, handler http.HandlerFunc) {
+					handlers[url] = handler
+				},
+				SafeBrowsingEnabled: tc.enabled,
+			}, nil)
+			require.NoError(t, err)
+			t.Cleanup(d.Close)
+
+			d.RegisterFilteringHandlers()
+			require.NotEmpty(t, handlers)
+			require.Contains(t, handlers, statusURL)
+
+			r := httptest.NewRequest(http.MethodPost, tc.url, nil)
+			w := httptest.NewRecorder()
+
+			go handlers[tc.url].ServeHTTP(w, r)
+
+			testutil.RequireReceive(t, confModCh, testTimeout)
+
+			r = httptest.NewRequest(http.MethodGet, statusURL, nil)
+			w = httptest.NewRecorder()
+
+			handlers[statusURL].ServeHTTP(w, r)
+			require.Equal(t, http.StatusOK, w.Code)
+
+			status := struct {
+				Enabled bool `json:"enabled"`
+			}{
+				Enabled: false,
+			}
+
+			err = json.NewDecoder(w.Body).Decode(&status)
+			require.NoError(t, err)
+
+			tc.wantStatus(t, status.Enabled)
+		})
+	}
+}
+
+func TestDNSFilter_handleParentalStatus(t *testing.T) {
+	const (
+		testTimeout = time.Second
+		statusURL   = "/control/parental/status"
+	)
+
+	confModCh := make(chan struct{})
+	filtersDir := t.TempDir()
+
+	testCases := []struct {
+		name       string
+		url        string
+		enabled    bool
+		wantStatus assert.BoolAssertionFunc
+	}{{
+		name:       "enable_off",
+		url:        "/control/parental/enable",
+		enabled:    false,
+		wantStatus: assert.True,
+	}, {
+		name:       "enable_on",
+		url:        "/control/parental/enable",
+		enabled:    true,
+		wantStatus: assert.True,
+	}, {
+		name:       "disable_on",
+		url:        "/control/parental/disable",
+		enabled:    true,
+		wantStatus: assert.False,
+	}, {
+		name:       "disable_off",
+		url:        "/control/parental/disable",
+		enabled:    false,
+		wantStatus: assert.False,
+	}}
+
+	for _, tc := range testCases {
+		t.Run(tc.name, func(t *testing.T) {
+			handlers := make(map[string]http.Handler)
+
+			d, err := New(&Config{
+				ConfigModified: func() {
+					testutil.RequireSend(testutil.PanicT{}, confModCh, struct{}{}, testTimeout)
+				},
+				DataDir: filtersDir,
+				HTTPRegister: func(_, url string, handler http.HandlerFunc) {
+					handlers[url] = handler
+				},
+				ParentalEnabled: tc.enabled,
+			}, nil)
+			require.NoError(t, err)
+			t.Cleanup(d.Close)
+
+			d.RegisterFilteringHandlers()
+			require.NotEmpty(t, handlers)
+			require.Contains(t, handlers, statusURL)
+
+			r := httptest.NewRequest(http.MethodPost, tc.url, nil)
+			w := httptest.NewRecorder()
+
+			go handlers[tc.url].ServeHTTP(w, r)
+
+			testutil.RequireReceive(t, confModCh, testTimeout)
+
+			r = httptest.NewRequest(http.MethodGet, statusURL, nil)
+			w = httptest.NewRecorder()
+
+			handlers[statusURL].ServeHTTP(w, r)
+			require.Equal(t, http.StatusOK, w.Code)
+
+			status := struct {
+				Enabled bool `json:"enabled"`
+			}{
+				Enabled: false,
+			}
+
+			err = json.NewDecoder(w.Body).Decode(&status)
+			require.NoError(t, err)
+
+			tc.wantStatus(t, status.Enabled)
+		})
+	}
+}

internal/filtering/rewrite/storage.go

@@ -84,7 +84,7 @@ func (s *DefaultStorage) MatchRequest(dReq *urlfilter.DNSRequest) (rws []*rules.
 		return nil
 	}
 
-	// TODO(a.garipov): Check cnames for cycles on initialisation.
+	// TODO(a.garipov): Check cnames for cycles on initialization.
 	cnames := stringutil.NewSet()
 	host := dReq.Hostname
 	for len(rrules) > 0 && rrules[0].DNSRewrite != nil && rrules[0].DNSRewrite.NewCNAME != "" {

internal/filtering/rewritehttp.go

@@ -6,6 +6,7 @@ import (
 
 	"github.com/AdguardTeam/AdGuardHome/internal/aghhttp"
 	"github.com/AdguardTeam/golibs/log"
+	"golang.org/x/exp/slices"
 )
 
 // TODO(d.kolyshev): Use [rewrite.Item] instead.
@@ -91,3 +92,62 @@ func (d *DNSFilter) handleRewriteDelete(w http.ResponseWriter, r *http.Request)
 
 	d.Config.ConfigModified()
 }
+
+// rewriteUpdateJSON is a struct for JSON object with rewrite rule update info.
+type rewriteUpdateJSON struct {
+	Target rewriteEntryJSON `json:"target"`
+	Update rewriteEntryJSON `json:"update"`
+}
+
+// handleRewriteUpdate is the handler for the PUT /control/rewrite/update HTTP
+// API.
+func (d *DNSFilter) handleRewriteUpdate(w http.ResponseWriter, r *http.Request) {
+	updateJSON := rewriteUpdateJSON{}
+	err := json.NewDecoder(r.Body).Decode(&updateJSON)
+	if err != nil {
+		aghhttp.Error(r, w, http.StatusBadRequest, "json.Decode: %s", err)
+
+		return
+	}
+
+	rwDel := &LegacyRewrite{
+		Domain: updateJSON.Target.Domain,
+		Answer: updateJSON.Target.Answer,
+	}
+
+	rwAdd := &LegacyRewrite{
+		Domain: updateJSON.Update.Domain,
+		Answer: updateJSON.Update.Answer,
+	}
+
+	err = rwAdd.normalize()
+	if err != nil {
+		// Shouldn't happen currently, since normalize only returns a non-nil
+		// error when a rewrite is nil, but be change-proof.
+		aghhttp.Error(r, w, http.StatusBadRequest, "normalizing: %s", err)
+
+		return
+	}
+
+	index := -1
+	defer func() {
+		if index >= 0 {
+			d.Config.ConfigModified()
+		}
+	}()
+
+	d.confLock.Lock()
+	defer d.confLock.Unlock()
+
+	index = slices.IndexFunc(d.Config.Rewrites, rwDel.equal)
+	if index == -1 {
+		aghhttp.Error(r, w, http.StatusBadRequest, "target rule not found")
+
+		return
+	}
+
+	d.Config.Rewrites = slices.Replace(d.Config.Rewrites, index, index+1, rwAdd)
+
+	log.Debug("rewrite: removed element: %s -> %s", rwDel.Domain, rwDel.Answer)
+	log.Debug("rewrite: added element: %s -> %s", rwAdd.Domain, rwAdd.Answer)
+}

internal/filtering/rewritehttp_test.go

@@ -0,0 +1,237 @@
+package filtering_test
+
+import (
+	"bytes"
+	"encoding/json"
+	"io"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+
+	"github.com/AdguardTeam/AdGuardHome/internal/filtering"
+	"github.com/AdguardTeam/golibs/testutil"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+// TODO(d.kolyshev): Use [rewrite.Item] instead.
+type rewriteJSON struct {
+	Domain string `json:"domain"`
+	Answer string `json:"answer"`
+}
+
+type rewriteUpdateJSON struct {
+	Target rewriteJSON `json:"target"`
+	Update rewriteJSON `json:"update"`
+}
+
+const (
+	// testTimeout is the common timeout for tests.
+	testTimeout = 100 * time.Millisecond
+
+	listURL   = "/control/rewrite/list"
+	addURL    = "/control/rewrite/add"
+	deleteURL = "/control/rewrite/delete"
+	updateURL = "/control/rewrite/update"
+
+	decodeErrorMsg = "json.Decode: json: cannot unmarshal string into Go value of type" +
+		" filtering.rewriteEntryJSON\n"
+)
+
+func TestDNSFilter_handleRewriteHTTP(t *testing.T) {
+	confModCh := make(chan struct{})
+	reqCh := make(chan struct{})
+	testRewrites := []*rewriteJSON{
+		{Domain: "example.local", Answer: "example.rewrite"},
+		{Domain: "one.local", Answer: "one.rewrite"},
+	}
+
+	testRewritesJSON, mErr := json.Marshal(testRewrites)
+	require.NoError(t, mErr)
+
+	testCases := []struct {
+		reqData     any
+		name        string
+		url         string
+		method      string
+		wantList    []*rewriteJSON
+		wantBody    string
+		wantConfMod bool
+		wantStatus  int
+	}{{
+		name:        "list",
+		url:         listURL,
+		method:      http.MethodGet,
+		reqData:     nil,
+		wantConfMod: false,
+		wantStatus:  http.StatusOK,
+		wantBody:    string(testRewritesJSON) + "\n",
+		wantList:    testRewrites,
+	}, {
+		name:        "add",
+		url:         addURL,
+		method:      http.MethodPost,
+		reqData:     rewriteJSON{Domain: "add.local", Answer: "add.rewrite"},
+		wantConfMod: true,
+		wantStatus:  http.StatusOK,
+		wantBody:    "",
+		wantList: append(
+			testRewrites,
+			&rewriteJSON{Domain: "add.local", Answer: "add.rewrite"},
+		),
+	}, {
+		name:        "add_error",
+		url:         addURL,
+		method:      http.MethodPost,
+		reqData:     "invalid_json",
+		wantConfMod: false,
+		wantStatus:  http.StatusBadRequest,
+		wantBody:    decodeErrorMsg,
+		wantList:    testRewrites,
+	}, {
+		name:        "delete",
+		url:         deleteURL,
+		method:      http.MethodPost,
+		reqData:     rewriteJSON{Domain: "one.local", Answer: "one.rewrite"},
+		wantConfMod: true,
+		wantStatus:  http.StatusOK,
+		wantBody:    "",
+		wantList:    []*rewriteJSON{{Domain: "example.local", Answer: "example.rewrite"}},
+	}, {
+		name:        "delete_error",
+		url:         deleteURL,
+		method:      http.MethodPost,
+		reqData:     "invalid_json",
+		wantConfMod: false,
+		wantStatus:  http.StatusBadRequest,
+		wantBody:    decodeErrorMsg,
+		wantList:    testRewrites,
+	}, {
+		name:   "update",
+		url:    updateURL,
+		method: http.MethodPut,
+		reqData: rewriteUpdateJSON{
+			Target: rewriteJSON{Domain: "one.local", Answer: "one.rewrite"},
+			Update: rewriteJSON{Domain: "upd.local", Answer: "upd.rewrite"},
+		},
+		wantConfMod: true,
+		wantStatus:  http.StatusOK,
+		wantBody:    "",
+		wantList: []*rewriteJSON{
+			{Domain: "example.local", Answer: "example.rewrite"},
+			{Domain: "upd.local", Answer: "upd.rewrite"},
+		},
+	}, {
+		name:        "update_error",
+		url:         updateURL,
+		method:      http.MethodPut,
+		reqData:     "invalid_json",
+		wantConfMod: false,
+		wantStatus:  http.StatusBadRequest,
+		wantBody: "json.Decode: json: cannot unmarshal string into Go value of type" +
+			" filtering.rewriteUpdateJSON\n",
+		wantList: testRewrites,
+	}, {
+		name:   "update_error_target",
+		url:    updateURL,
+		method: http.MethodPut,
+		reqData: rewriteUpdateJSON{
+			Target: rewriteJSON{Domain: "inv.local", Answer: "inv.rewrite"},
+			Update: rewriteJSON{Domain: "upd.local", Answer: "upd.rewrite"},
+		},
+		wantConfMod: false,
+		wantStatus:  http.StatusBadRequest,
+		wantBody:    "target rule not found\n",
+		wantList:    testRewrites,
+	}}
+
+	for _, tc := range testCases {
+		onConfModified := func() {
+			if !tc.wantConfMod {
+				panic("config modified has been fired")
+			}
+
+			testutil.RequireSend(testutil.PanicT{}, confModCh, struct{}{}, testTimeout)
+		}
+
+		t.Run(tc.name, func(t *testing.T) {
+			handlers := make(map[string]http.Handler)
+
+			d, err := filtering.New(&filtering.Config{
+				ConfigModified: onConfModified,
+				HTTPRegister: func(_, url string, handler http.HandlerFunc) {
+					handlers[url] = handler
+				},
+				Rewrites: rewriteEntriesToLegacyRewrites(testRewrites),
+			}, nil)
+			require.NoError(t, err)
+			t.Cleanup(d.Close)
+
+			d.RegisterFilteringHandlers()
+			require.NotEmpty(t, handlers)
+			require.Contains(t, handlers, listURL)
+			require.Contains(t, handlers, tc.url)
+
+			var body io.Reader
+			if tc.reqData != nil {
+				data, rErr := json.Marshal(tc.reqData)
+				require.NoError(t, rErr)
+
+				body = bytes.NewReader(data)
+			}
+
+			r := httptest.NewRequest(tc.method, tc.url, body)
+			w := httptest.NewRecorder()
+
+			go func() {
+				handlers[tc.url].ServeHTTP(w, r)
+
+				testutil.RequireSend(testutil.PanicT{}, reqCh, struct{}{}, testTimeout)
+			}()
+
+			if tc.wantConfMod {
+				testutil.RequireReceive(t, confModCh, testTimeout)
+			}
+
+			testutil.RequireReceive(t, reqCh, testTimeout)
+			assert.Equal(t, tc.wantStatus, w.Code)
+
+			respBody, err := io.ReadAll(w.Body)
+			require.NoError(t, err)
+			assert.Equal(t, []byte(tc.wantBody), respBody)
+
+			assertRewritesList(t, handlers[listURL], tc.wantList)
+		})
+	}
+}
+
+// assertRewritesList checks if rewrites list equals the list received from the
+// handler by listURL.
+func assertRewritesList(t *testing.T, handler http.Handler, wantList []*rewriteJSON) {
+	t.Helper()
+
+	r := httptest.NewRequest(http.MethodGet, listURL, nil)
+	w := httptest.NewRecorder()
+
+	handler.ServeHTTP(w, r)
+	require.Equal(t, http.StatusOK, w.Code)
+
+	var actual []*rewriteJSON
+	err := json.NewDecoder(w.Body).Decode(&actual)
+	require.NoError(t, err)
+
+	assert.Equal(t, wantList, actual)
+}
+
+// rewriteEntriesToLegacyRewrites gets legacy rewrites from json entries.
+func rewriteEntriesToLegacyRewrites(entries []*rewriteJSON) (rw []*filtering.LegacyRewrite) {
+	for _, entry := range entries {
+		rw = append(rw, &filtering.LegacyRewrite{
+			Domain: entry.Domain,
+			Answer: entry.Answer,
+		})
+	}
+
+	return rw
+}

internal/filtering/safebrowsing.go

@@ -1,433 +0,0 @@
-package filtering
-
-import (
-	"bytes"
-	"crypto/sha256"
-	"encoding/binary"
-	"encoding/hex"
-	"fmt"
-	"net"
-	"net/http"
-	"strings"
-	"sync"
-	"time"
-
-	"github.com/AdguardTeam/AdGuardHome/internal/aghhttp"
-	"github.com/AdguardTeam/dnsproxy/upstream"
-	"github.com/AdguardTeam/golibs/cache"
-	"github.com/AdguardTeam/golibs/log"
-	"github.com/AdguardTeam/golibs/stringutil"
-	"github.com/miekg/dns"
-	"golang.org/x/exp/slices"
-	"golang.org/x/net/publicsuffix"
-)
-
-// Safe browsing and parental control methods.
-
-// TODO(a.garipov): Make configurable.
-const (
-	dnsTimeout                = 3 * time.Second
-	defaultSafebrowsingServer = `https://family.adguard-dns.com/dns-query`
-	defaultParentalServer     = `https://family.adguard-dns.com/dns-query`
-	sbTXTSuffix               = `sb.dns.adguard.com.`
-	pcTXTSuffix               = `pc.dns.adguard.com.`
-)
-
-// SetParentalUpstream sets the parental upstream for *DNSFilter.
-//
-// TODO(e.burkov): Remove this in v1 API to forbid the direct access.
-func (d *DNSFilter) SetParentalUpstream(u upstream.Upstream) {
-	d.parentalUpstream = u
-}
-
-// SetSafeBrowsingUpstream sets the safe browsing upstream for *DNSFilter.
-//
-// TODO(e.burkov): Remove this in v1 API to forbid the direct access.
-func (d *DNSFilter) SetSafeBrowsingUpstream(u upstream.Upstream) {
-	d.safeBrowsingUpstream = u
-}
-
-func (d *DNSFilter) initSecurityServices() error {
-	var err error
-	d.safeBrowsingServer = defaultSafebrowsingServer
-	d.parentalServer = defaultParentalServer
-	opts := &upstream.Options{
-		Timeout: dnsTimeout,
-		ServerIPAddrs: []net.IP{
-			{94, 140, 14, 15},
-			{94, 140, 15, 16},
-			net.ParseIP("2a10:50c0::bad1:ff"),
-			net.ParseIP("2a10:50c0::bad2:ff"),
-		},
-	}
-
-	parUps, err := upstream.AddressToUpstream(d.parentalServer, opts)
-	if err != nil {
-		return fmt.Errorf("converting parental server: %w", err)
-	}
-	d.SetParentalUpstream(parUps)
-
-	sbUps, err := upstream.AddressToUpstream(d.safeBrowsingServer, opts)
-	if err != nil {
-		return fmt.Errorf("converting safe browsing server: %w", err)
-	}
-	d.SetSafeBrowsingUpstream(sbUps)
-
-	return nil
-}
-
-/*
-expire byte[4]
-hash byte[32]
-...
-*/
-func (c *sbCtx) setCache(prefix, hashes []byte) {
-	d := make([]byte, 4+len(hashes))
-	expire := uint(time.Now().Unix()) + c.cacheTime*60
-	binary.BigEndian.PutUint32(d[:4], uint32(expire))
-	copy(d[4:], hashes)
-	c.cache.Set(prefix, d)
-	log.Debug("%s: stored in cache: %v", c.svc, prefix)
-}
-
-// findInHash returns 32-byte hash if it's found in hashToHost.
-func (c *sbCtx) findInHash(val []byte) (hash32 [32]byte, found bool) {
-	for i := 4; i < len(val); i += 32 {
-		hash := val[i : i+32]
-
-		copy(hash32[:], hash[0:32])
-
-		_, found = c.hashToHost[hash32]
-		if found {
-			return hash32, found
-		}
-	}
-
-	return [32]byte{}, false
-}
-
-func (c *sbCtx) getCached() int {
-	now := time.Now().Unix()
-	hashesToRequest := map[[32]byte]string{}
-	for k, v := range c.hashToHost {
-		// nolint:looppointer // The subsilce is used for a safe cache lookup.
-		val := c.cache.Get(k[0:2])
-		if val == nil || now >= int64(binary.BigEndian.Uint32(val)) {
-			hashesToRequest[k] = v
-			continue
-		}
-		if hash32, found := c.findInHash(val); found {
-			log.Debug("%s: found in cache: %s: blocked by %v", c.svc, c.host, hash32)
-			return 1
-		}
-	}
-
-	if len(hashesToRequest) == 0 {
-		log.Debug("%s: found in cache: %s: not blocked", c.svc, c.host)
-		return -1
-	}
-
-	c.hashToHost = hashesToRequest
-	return 0
-}
-
-type sbCtx struct {
-	host       string
-	svc        string
-	hashToHost map[[32]byte]string
-	cache      cache.Cache
-	cacheTime  uint
-}
-
-func hostnameToHashes(host string) map[[32]byte]string {
-	hashes := map[[32]byte]string{}
-	tld, icann := publicsuffix.PublicSuffix(host)
-	if !icann {
-		// private suffixes like cloudfront.net
-		tld = ""
-	}
-	curhost := host
-
-	nDots := 0
-	for i := len(curhost) - 1; i >= 0; i-- {
-		if curhost[i] == '.' {
-			nDots++
-			if nDots == 4 {
-				curhost = curhost[i+1:] // "xxx.a.b.c.d" -> "a.b.c.d"
-				break
-			}
-		}
-	}
-
-	for {
-		if curhost == "" {
-			// we've reached end of string
-			break
-		}
-		if tld != "" && curhost == tld {
-			// we've reached the TLD, don't hash it
-			break
-		}
-
-		sum := sha256.Sum256([]byte(curhost))
-		hashes[sum] = curhost
-
-		pos := strings.IndexByte(curhost, byte('.'))
-		if pos < 0 {
-			break
-		}
-		curhost = curhost[pos+1:]
-	}
-	return hashes
-}
-
-// convert hash array to string
-func (c *sbCtx) getQuestion() string {
-	b := &strings.Builder{}
-
-	for hash := range c.hashToHost {
-		// nolint:looppointer // The subsilce is used for safe hex encoding.
-		stringutil.WriteToBuilder(b, hex.EncodeToString(hash[0:2]), ".")
-	}
-
-	if c.svc == "SafeBrowsing" {
-		stringutil.WriteToBuilder(b, sbTXTSuffix)
-
-		return b.String()
-	}
-
-	stringutil.WriteToBuilder(b, pcTXTSuffix)
-
-	return b.String()
-}
-
-// Find the target hash in TXT response
-func (c *sbCtx) processTXT(resp *dns.Msg) (bool, [][]byte) {
-	matched := false
-	hashes := [][]byte{}
-	for _, a := range resp.Answer {
-		txt, ok := a.(*dns.TXT)
-		if !ok {
-			continue
-		}
-		log.Debug("%s: received hashes for %s: %v", c.svc, c.host, txt.Txt)
-
-		for _, t := range txt.Txt {
-			if len(t) != 32*2 {
-				continue
-			}
-			hash, err := hex.DecodeString(t)
-			if err != nil {
-				continue
-			}
-
-			hashes = append(hashes, hash)
-
-			if !matched {
-				var hash32 [32]byte
-				copy(hash32[:], hash)
-
-				var hashHost string
-				hashHost, ok = c.hashToHost[hash32]
-				if ok {
-					log.Debug("%s: matched %s by %s/%s", c.svc, c.host, hashHost, t)
-					matched = true
-				}
-			}
-		}
-	}
-
-	return matched, hashes
-}
-
-func (c *sbCtx) storeCache(hashes [][]byte) {
-	slices.SortFunc(hashes, func(a, b []byte) (sortsBefore bool) {
-		return bytes.Compare(a, b) == -1
-	})
-
-	var curData []byte
-	var prevPrefix []byte
-	for i, hash := range hashes {
-		// nolint:looppointer // The subsilce is used for a safe comparison.
-		if !bytes.Equal(hash[0:2], prevPrefix) {
-			if i != 0 {
-				c.setCache(prevPrefix, curData)
-				curData = nil
-			}
-			prevPrefix = hashes[i][0:2]
-		}
-		curData = append(curData, hash...)
-	}
-
-	if len(prevPrefix) != 0 {
-		c.setCache(prevPrefix, curData)
-	}
-
-	for hash := range c.hashToHost {
-		// nolint:looppointer // The subsilce is used for a safe cache lookup.
-		prefix := hash[0:2]
-		val := c.cache.Get(prefix)
-		if val == nil {
-			c.setCache(prefix, nil)
-		}
-	}
-}
-
-func check(c *sbCtx, r Result, u upstream.Upstream) (Result, error) {
-	c.hashToHost = hostnameToHashes(c.host)
-	switch c.getCached() {
-	case -1:
-		return Result{}, nil
-	case 1:
-		return r, nil
-	}
-
-	question := c.getQuestion()
-
-	log.Tracef("%s: checking %s: %s", c.svc, c.host, question)
-	req := (&dns.Msg{}).SetQuestion(question, dns.TypeTXT)
-
-	resp, err := u.Exchange(req)
-	if err != nil {
-		return Result{}, err
-	}
-
-	matched, receivedHashes := c.processTXT(resp)
-
-	c.storeCache(receivedHashes)
-	if matched {
-		return r, nil
-	}
-
-	return Result{}, nil
-}
-
-// TODO(a.garipov): Unify with checkParental.
-func (d *DNSFilter) checkSafeBrowsing(
-	host string,
-	_ uint16,
-	setts *Settings,
-) (res Result, err error) {
-	if !setts.ProtectionEnabled || !setts.SafeBrowsingEnabled {
-		return Result{}, nil
-	}
-
-	if log.GetLevel() >= log.DEBUG {
-		timer := log.StartTimer()
-		defer timer.LogElapsed("safebrowsing lookup for %q", host)
-	}
-
-	sctx := &sbCtx{
-		host:      host,
-		svc:       "SafeBrowsing",
-		cache:     d.safebrowsingCache,
-		cacheTime: d.Config.CacheTime,
-	}
-
-	res = Result{
-		Rules: []*ResultRule{{
-			Text:         "adguard-malware-shavar",
-			FilterListID: SafeBrowsingListID,
-		}},
-		Reason:     FilteredSafeBrowsing,
-		IsFiltered: true,
-	}
-
-	return check(sctx, res, d.safeBrowsingUpstream)
-}
-
-// TODO(a.garipov): Unify with checkSafeBrowsing.
-func (d *DNSFilter) checkParental(
-	host string,
-	_ uint16,
-	setts *Settings,
-) (res Result, err error) {
-	if !setts.ProtectionEnabled || !setts.ParentalEnabled {
-		return Result{}, nil
-	}
-
-	if log.GetLevel() >= log.DEBUG {
-		timer := log.StartTimer()
-		defer timer.LogElapsed("parental lookup for %q", host)
-	}
-
-	sctx := &sbCtx{
-		host:      host,
-		svc:       "Parental",
-		cache:     d.parentalCache,
-		cacheTime: d.Config.CacheTime,
-	}
-
-	res = Result{
-		Rules: []*ResultRule{{
-			Text:         "parental CATEGORY_BLACKLISTED",
-			FilterListID: ParentalListID,
-		}},
-		Reason:     FilteredParental,
-		IsFiltered: true,
-	}
-
-	return check(sctx, res, d.parentalUpstream)
-}
-
-// setProtectedBool sets the value of a boolean pointer under a lock.  l must
-// protect the value under ptr.
-//
-// TODO(e.burkov):  Make it generic?
-func setProtectedBool(mu *sync.RWMutex, ptr *bool, val bool) {
-	mu.Lock()
-	defer mu.Unlock()
-
-	*ptr = val
-}
-
-// protectedBool gets the value of a boolean pointer under a read lock.  l must
-// protect the value under ptr.
-//
-// TODO(e.burkov):  Make it generic?
-func protectedBool(mu *sync.RWMutex, ptr *bool) (val bool) {
-	mu.RLock()
-	defer mu.RUnlock()
-
-	return *ptr
-}
-
-func (d *DNSFilter) handleSafeBrowsingEnable(w http.ResponseWriter, r *http.Request) {
-	setProtectedBool(&d.confLock, &d.Config.SafeBrowsingEnabled, true)
-	d.Config.ConfigModified()
-}
-
-func (d *DNSFilter) handleSafeBrowsingDisable(w http.ResponseWriter, r *http.Request) {
-	setProtectedBool(&d.confLock, &d.Config.SafeBrowsingEnabled, false)
-	d.Config.ConfigModified()
-}
-
-func (d *DNSFilter) handleSafeBrowsingStatus(w http.ResponseWriter, r *http.Request) {
-	resp := &struct {
-		Enabled bool `json:"enabled"`
-	}{
-		Enabled: protectedBool(&d.confLock, &d.Config.SafeBrowsingEnabled),
-	}
-
-	_ = aghhttp.WriteJSONResponse(w, r, resp)
-}
-
-func (d *DNSFilter) handleParentalEnable(w http.ResponseWriter, r *http.Request) {
-	setProtectedBool(&d.confLock, &d.Config.ParentalEnabled, true)
-	d.Config.ConfigModified()
-}
-
-func (d *DNSFilter) handleParentalDisable(w http.ResponseWriter, r *http.Request) {
-	setProtectedBool(&d.confLock, &d.Config.ParentalEnabled, false)
-	d.Config.ConfigModified()
-}
-
-func (d *DNSFilter) handleParentalStatus(w http.ResponseWriter, r *http.Request) {
-	resp := &struct {
-		Enabled bool `json:"enabled"`
-	}{
-		Enabled: protectedBool(&d.confLock, &d.Config.ParentalEnabled),
-	}
-
-	_ = aghhttp.WriteJSONResponse(w, r, resp)
-}

internal/filtering/safebrowsing_test.go

@@ -1,226 +0,0 @@
-package filtering
-
-import (
-	"crypto/sha256"
-	"strings"
-	"testing"
-
-	"github.com/AdguardTeam/AdGuardHome/internal/aghtest"
-	"github.com/AdguardTeam/golibs/cache"
-	"github.com/miekg/dns"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-)
-
-func TestSafeBrowsingHash(t *testing.T) {
-	// test hostnameToHashes()
-	hashes := hostnameToHashes("1.2.3.sub.host.com")
-	assert.Len(t, hashes, 3)
-	_, ok := hashes[sha256.Sum256([]byte("3.sub.host.com"))]
-	assert.True(t, ok)
-	_, ok = hashes[sha256.Sum256([]byte("sub.host.com"))]
-	assert.True(t, ok)
-	_, ok = hashes[sha256.Sum256([]byte("host.com"))]
-	assert.True(t, ok)
-	_, ok = hashes[sha256.Sum256([]byte("com"))]
-	assert.False(t, ok)
-
-	c := &sbCtx{
-		svc:        "SafeBrowsing",
-		hashToHost: hashes,
-	}
-
-	q := c.getQuestion()
-
-	assert.Contains(t, q, "7a1b.")
-	assert.Contains(t, q, "af5a.")
-	assert.Contains(t, q, "eb11.")
-	assert.True(t, strings.HasSuffix(q, "sb.dns.adguard.com."))
-}
-
-func TestSafeBrowsingCache(t *testing.T) {
-	c := &sbCtx{
-		svc:       "SafeBrowsing",
-		cacheTime: 100,
-	}
-	conf := cache.Config{}
-	c.cache = cache.New(conf)
-
-	// store in cache hashes for "3.sub.host.com" and "host.com"
-	//  and empty data for hash-prefix for "sub.host.com"
-	hash := sha256.Sum256([]byte("sub.host.com"))
-	c.hashToHost = make(map[[32]byte]string)
-	c.hashToHost[hash] = "sub.host.com"
-	var hashesArray [][]byte
-	hash4 := sha256.Sum256([]byte("3.sub.host.com"))
-	hashesArray = append(hashesArray, hash4[:])
-	hash2 := sha256.Sum256([]byte("host.com"))
-	hashesArray = append(hashesArray, hash2[:])
-	c.storeCache(hashesArray)
-
-	// match "3.sub.host.com" or "host.com" from cache
-	c.hashToHost = make(map[[32]byte]string)
-	hash = sha256.Sum256([]byte("3.sub.host.com"))
-	c.hashToHost[hash] = "3.sub.host.com"
-	hash = sha256.Sum256([]byte("sub.host.com"))
-	c.hashToHost[hash] = "sub.host.com"
-	hash = sha256.Sum256([]byte("host.com"))
-	c.hashToHost[hash] = "host.com"
-	assert.Equal(t, 1, c.getCached())
-
-	// match "sub.host.com" from cache
-	c.hashToHost = make(map[[32]byte]string)
-	hash = sha256.Sum256([]byte("sub.host.com"))
-	c.hashToHost[hash] = "sub.host.com"
-	assert.Equal(t, -1, c.getCached())
-
-	// Match "sub.host.com" from cache.  Another hash for "host.example" is not
-	// in the cache, so get data for it from the server.
-	c.hashToHost = make(map[[32]byte]string)
-	hash = sha256.Sum256([]byte("sub.host.com"))
-	c.hashToHost[hash] = "sub.host.com"
-	hash = sha256.Sum256([]byte("host.example"))
-	c.hashToHost[hash] = "host.example"
-	assert.Empty(t, c.getCached())
-
-	hash = sha256.Sum256([]byte("sub.host.com"))
-	_, ok := c.hashToHost[hash]
-	assert.False(t, ok)
-
-	hash = sha256.Sum256([]byte("host.example"))
-	_, ok = c.hashToHost[hash]
-	assert.True(t, ok)
-
-	c = &sbCtx{
-		svc:       "SafeBrowsing",
-		cacheTime: 100,
-	}
-	conf = cache.Config{}
-	c.cache = cache.New(conf)
-
-	hash = sha256.Sum256([]byte("sub.host.com"))
-	c.hashToHost = make(map[[32]byte]string)
-	c.hashToHost[hash] = "sub.host.com"
-
-	c.cache.Set(hash[0:2], make([]byte, 32))
-	assert.Empty(t, c.getCached())
-}
-
-func TestSBPC_checkErrorUpstream(t *testing.T) {
-	d, _ := newForTest(t, &Config{SafeBrowsingEnabled: true}, nil)
-	t.Cleanup(d.Close)
-
-	ups := aghtest.NewErrorUpstream()
-	d.SetSafeBrowsingUpstream(ups)
-	d.SetParentalUpstream(ups)
-
-	setts := &Settings{
-		ProtectionEnabled:   true,
-		SafeBrowsingEnabled: true,
-		ParentalEnabled:     true,
-	}
-
-	_, err := d.checkSafeBrowsing("smthng.com", dns.TypeA, setts)
-	assert.Error(t, err)
-
-	_, err = d.checkParental("smthng.com", dns.TypeA, setts)
-	assert.Error(t, err)
-}
-
-func TestSBPC(t *testing.T) {
-	d, _ := newForTest(t, &Config{SafeBrowsingEnabled: true}, nil)
-	t.Cleanup(d.Close)
-
-	const hostname = "example.org"
-
-	setts := &Settings{
-		ProtectionEnabled:   true,
-		SafeBrowsingEnabled: true,
-		ParentalEnabled:     true,
-	}
-
-	testCases := []struct {
-		testCache cache.Cache
-		testFunc  func(host string, _ uint16, _ *Settings) (res Result, err error)
-		name      string
-		block     bool
-	}{{
-		testCache: d.safebrowsingCache,
-		testFunc:  d.checkSafeBrowsing,
-		name:      "sb_no_block",
-		block:     false,
-	}, {
-		testCache: d.safebrowsingCache,
-		testFunc:  d.checkSafeBrowsing,
-		name:      "sb_block",
-		block:     true,
-	}, {
-		testCache: d.parentalCache,
-		testFunc:  d.checkParental,
-		name:      "pc_no_block",
-		block:     false,
-	}, {
-		testCache: d.parentalCache,
-		testFunc:  d.checkParental,
-		name:      "pc_block",
-		block:     true,
-	}}
-
-	for _, tc := range testCases {
-		// Prepare the upstream.
-		ups := aghtest.NewBlockUpstream(hostname, tc.block)
-
-		var numReq int
-		onExchange := ups.OnExchange
-		ups.OnExchange = func(req *dns.Msg) (resp *dns.Msg, err error) {
-			numReq++
-
-			return onExchange(req)
-		}
-
-		d.SetSafeBrowsingUpstream(ups)
-		d.SetParentalUpstream(ups)
-
-		t.Run(tc.name, func(t *testing.T) {
-			// Firstly, check the request blocking.
-			hits := 0
-			res, err := tc.testFunc(hostname, dns.TypeA, setts)
-			require.NoError(t, err)
-
-			if tc.block {
-				assert.True(t, res.IsFiltered)
-				require.Len(t, res.Rules, 1)
-				hits++
-			} else {
-				require.False(t, res.IsFiltered)
-			}
-
-			// Check the cache state, check the response is now cached.
-			assert.Equal(t, 1, tc.testCache.Stats().Count)
-			assert.Equal(t, hits, tc.testCache.Stats().Hit)
-
-			// There was one request to an upstream.
-			assert.Equal(t, 1, numReq)
-
-			// Now make the same request to check the cache was used.
-			res, err = tc.testFunc(hostname, dns.TypeA, setts)
-			require.NoError(t, err)
-
-			if tc.block {
-				assert.True(t, res.IsFiltered)
-				require.Len(t, res.Rules, 1)
-			} else {
-				require.False(t, res.IsFiltered)
-			}
-
-			// Check the cache state, it should've been used.
-			assert.Equal(t, 1, tc.testCache.Stats().Count)
-			assert.Equal(t, hits+1, tc.testCache.Stats().Hit)
-
-			// Check that there were no additional requests.
-			assert.Equal(t, 1, numReq)
-		})
-
-		purgeCaches(d)
-	}
-}

internal/filtering/safesearch/safesearch.go

@@ -161,12 +161,8 @@ func (ss *Default) resetEngine(
 // type check
 var _ filtering.SafeSearch = (*Default)(nil)
 
-// CheckHost implements the [filtering.SafeSearch] interface for
-// *DefaultSafeSearch.
-func (ss *Default) CheckHost(
-	host string,
-	qtype rules.RRType,
-) (res filtering.Result, err error) {
+// CheckHost implements the [filtering.SafeSearch] interface for *Default.
+func (ss *Default) CheckHost(host string, qtype rules.RRType) (res filtering.Result, err error) {
 	start := time.Now()
 	defer func() {
 		ss.log(log.DEBUG, "lookup for %q finished in %s", host, time.Since(start))
@@ -196,14 +192,10 @@ func (ss *Default) CheckHost(
 		return filtering.Result{}, err
 	}
 
-	if fltRes != nil {
-		res = *fltRes
-		ss.setCacheResult(host, qtype, res)
+	res = *fltRes
+	ss.setCacheResult(host, qtype, res)
 
-		return res, nil
-	}
-
-	return filtering.Result{}, fmt.Errorf("no ipv4 addresses for %q", host)
+	return res, nil
 }
 
 // searchHost looks up DNS rewrites in the internal DNS filtering engine.
@@ -229,7 +221,11 @@ func (ss *Default) searchHost(host string, qtype rules.RRType) (res *rules.DNSRe
 }
 
 // newResult creates Result object from rewrite rule.  qtype must be either
-// [dns.TypeA] or [dns.TypeAAAA].
+// [dns.TypeA] or [dns.TypeAAAA].  If err is nil, res is never nil, so that the
+// empty result is converted into a NODATA response.
+//
+// TODO(a.garipov): Use the main rewrite result mechanism used in
+// [dnsforward.Server.filterDNSRequest].
 func (ss *Default) newResult(
 	rewrite *rules.DNSRewrite,
 	qtype rules.RRType,
@@ -243,9 +239,10 @@ func (ss *Default) newResult(
 	}
 
 	if rewrite.RRType == qtype {
-		ip, ok := rewrite.Value.(net.IP)
+		v := rewrite.Value
+		ip, ok := v.(net.IP)
 		if !ok || ip == nil {
-			return nil, nil
+			return nil, fmt.Errorf("expected ip rewrite value, got %T(%[1]v)", v)
 		}
 
 		res.Rules[0].IP = ip
@@ -255,14 +252,14 @@ func (ss *Default) newResult(
 
 	host := rewrite.NewCNAME
 	if host == "" {
-		return nil, nil
+		return res, nil
 	}
 
 	ss.log(log.DEBUG, "resolving %q", host)
 
 	ips, err := ss.resolver.LookupIP(context.Background(), qtypeToProto(qtype), host)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("resolving cname: %w", err)
 	}
 
 	ss.log(log.DEBUG, "resolved %s", ips)
@@ -276,11 +273,9 @@ func (ss *Default) newResult(
 		}
 
 		res.Rules[0].IP = ip
-
-		return res, nil
 	}
 
-	return nil, nil
+	return res, nil
 }
 
 // qtypeToProto returns "ip4" for [dns.TypeA] and "ip6" for [dns.TypeAAAA].

internal/filtering/safesearch/safesearch_test.go

@@ -1,6 +1,7 @@
 package safesearch_test
 
 import (
+	"context"
 	"net"
 	"testing"
 	"time"
@@ -71,6 +72,25 @@ func TestDefault_CheckHost_yandex(t *testing.T) {
 	}
 }
 
+func TestDefault_CheckHost_yandexAAAA(t *testing.T) {
+	conf := testConf
+	ss, err := safesearch.NewDefault(conf, "", testCacheSize, testCacheTTL)
+	require.NoError(t, err)
+
+	res, err := ss.CheckHost("www.yandex.ru", dns.TypeAAAA)
+	require.NoError(t, err)
+
+	assert.True(t, res.IsFiltered)
+
+	// TODO(a.garipov): Currently, the safe-search filter returns a single rule
+	// with a nil IP address.  This isn't really necessary and should be changed
+	// once the TODO in [safesearch.Default.newResult] is resolved.
+	require.Len(t, res.Rules, 1)
+
+	assert.Nil(t, res.Rules[0].IP)
+	assert.EqualValues(t, filtering.SafeSearchListID, res.Rules[0].FilterListID)
+}
+
 func TestDefault_CheckHost_google(t *testing.T) {
 	resolver := &aghtest.TestResolver{}
 	ip, _ := resolver.HostToIPs("forcesafesearch.google.com")
@@ -105,6 +125,56 @@ func TestDefault_CheckHost_google(t *testing.T) {
 	}
 }
 
+// testResolver is a [filtering.Resolver] for tests.
+//
+// TODO(a.garipov): Move to aghtest and use everywhere.
+type testResolver struct {
+	OnLookupIP func(ctx context.Context, network, host string) (ips []net.IP, err error)
+}
+
+// type check
+var _ filtering.Resolver = (*testResolver)(nil)
+
+// LookupIP implements the [filtering.Resolver] interface for *testResolver.
+func (r *testResolver) LookupIP(
+	ctx context.Context,
+	network string,
+	host string,
+) (ips []net.IP, err error) {
+	return r.OnLookupIP(ctx, network, host)
+}
+
+func TestDefault_CheckHost_duckduckgoAAAA(t *testing.T) {
+	conf := testConf
+	conf.CustomResolver = &testResolver{
+		OnLookupIP: func(_ context.Context, network, host string) (ips []net.IP, err error) {
+			assert.Equal(t, "ip6", network)
+			assert.Equal(t, "safe.duckduckgo.com", host)
+
+			return nil, nil
+		},
+	}
+
+	ss, err := safesearch.NewDefault(conf, "", testCacheSize, testCacheTTL)
+	require.NoError(t, err)
+
+	// The DuckDuckGo safe-search addresses are resolved through CNAMEs, but
+	// DuckDuckGo doesn't have a safe-search IPv6 address.  The result should be
+	// the same as the one for Yandex IPv6.  That is, a NODATA response.
+	res, err := ss.CheckHost("www.duckduckgo.com", dns.TypeAAAA)
+	require.NoError(t, err)
+
+	assert.True(t, res.IsFiltered)
+
+	// TODO(a.garipov): Currently, the safe-search filter returns a single rule
+	// with a nil IP address.  This isn't really necessary and should be changed
+	// once the TODO in [safesearch.Default.newResult] is resolved.
+	require.Len(t, res.Rules, 1)
+
+	assert.Nil(t, res.Rules[0].IP)
+	assert.EqualValues(t, filtering.SafeSearchListID, res.Rules[0].FilterListID)
+}
+
 func TestDefault_Update(t *testing.T) {
 	conf := testConf
 	ss, err := safesearch.NewDefault(conf, "", testCacheSize, testCacheTTL)

internal/filtering/servicelist.go

@@ -12,6 +12,14 @@ type blockedService struct {
 
 // blockedServices contains raw blocked service data.
 var blockedServices = []blockedService{{
+	ID:      "500px",
+	Name:    "500px",
+	IconSVG: []byte("<svg xmlns=\"http://www.w3.org/2000/svg\" fill=\"currentColor\" viewBox=\"0 0 50 50\"><path d=\"M 5 14 L 2.5 26 L 6.800781 26 C 6.800781 26 7.699219 24.300781 10.199219 24.300781 C 12.699219 24.300781 14 26.199219 14 28.300781 C 14 30.402344 12.5 32.800781 10.199219 32.800781 C 7.898438 32.800781 6.5 30.398438 6.5 29 L 2 29 C 2 30.199219 3 36 10.199219 36 C 15.15625 36 17.417969 33.121094 18.015625 31.898438 C 19.386719 34.34375 21.992188 36 24.984375 36 C 27.253906 36 29.777344 34.808594 32.5 32.453125 C 35.222656 34.808594 37.746094 36 40.015625 36 C 44.417969 36 48 32.410156 48 28 C 48 23.589844 44.417969 20 40.015625 20 C 37.746094 20 35.222656 21.191406 32.5 23.546875 C 29.777344 21.191406 27.253906 20 24.984375 20 C 21.832031 20 19.105469 21.847656 17.8125 24.511719 C 17.113281 23.382813 15.414063 21 11.902344 21 C 8.101563 21 7.300781 22.597656 7.300781 22.597656 C 7.300781 22.597656 7.699219 21.300781 8.300781 18 L 17 18 L 17 14 Z M 24.984375 25 C 25.453125 25 26.800781 25.226563 29.230469 27.328125 L 30.011719 28 L 29.230469 28.671875 C 26.800781 30.773438 25.453125 31 24.984375 31 C 23.339844 31 22 29.652344 22 28 C 22 26.347656 23.339844 25 24.984375 25 Z M 40.015625 25 C 41.660156 25 43 26.347656 43 28 C 43 29.652344 41.660156 31 40.015625 31 C 39.546875 31 38.199219 30.773438 35.769531 28.671875 L 34.988281 28 L 35.769531 27.328125 C 38.199219 25.226563 39.546875 25 40.015625 25 Z\"/></svg>"),
+	Rules: []string{
+		"||500px.com^",
+		"||500px.org^",
+	},
+}, {
 	ID:      "9gag",
 	Name:    "9GAG",
 	IconSVG: []byte("<svg xmlns=\"http://www.w3.org/2000/svg\" fill=\"currentColor\" viewBox=\"0 0 50 50\"><path d=\"M 44 14 C 44 13.644531 43.8125 13.316406 43.507813 13.136719 C 40.453125 11.347656 28.46875 4.847656 25.535156 3.136719 C 25.222656 2.957031 24.839844 2.957031 24.527344 3.136719 C 21.128906 5.117188 10.089844 11.621094 7.496094 13.136719 C 7.1875 13.316406 7 13.644531 7 14 L 7 20 C 7 20.378906 7.214844 20.722656 7.550781 20.894531 C 7.660156 20.949219 18.597656 26.453125 24.5 29.867188 C 24.8125 30.046875 25.195313 30.046875 25.507813 29.863281 C 27.269531 28.828125 29.117188 27.859375 30.902344 26.921875 C 32.253906 26.214844 33.636719 25.488281 35.003906 24.722656 C 35.007813 26.820313 35.003906 29.296875 35 30.40625 L 25 35.859375 L 14.480469 30.121094 C 14.144531 29.9375 13.730469 29.964844 13.417969 30.1875 L 6.417969 35.1875 C 6.140625 35.386719 5.980469 35.714844 6.003906 36.054688 C 6.023438 36.398438 6.214844 36.707031 6.515625 36.871094 L 24.542969 46.871094 C 24.695313 46.957031 24.859375 47 25.027344 47 C 25.195313 47 25.363281 46.957031 25.515625 46.875 L 43.484375 36.875 C 43.804688 36.695313 44 36.363281 44 36 C 44 36 43.992188 21.011719 44 14 Z M 25 20 L 18 16 L 25 12 L 32 16 Z\" /></svg>"),
@@ -1180,6 +1188,18 @@ var blockedServices = []blockedService{{
 		"||zuckerberg.com^",
 		"||zuckerberg.net^",
 	},
+}, {
+	ID:      "flickr",
+	Name:    "Flickr",
+	IconSVG: []byte("<svg xmlns=\"http://www.w3.org/2000/svg\" fill=\"currentColor\" viewBox=\"0 0 50 50\"><path d=\"M 9 4 C 6.2504839 4 4 6.2504839 4 9 L 4 41 C 4 43.749516 6.2504839 46 9 46 L 41 46 C 43.749516 46 46 43.749516 46 41 L 46 9 C 46 6.2504839 43.749516 4 41 4 L 9 4 z M 9 6 L 41 6 C 42.668484 6 44 7.3315161 44 9 L 44 41 C 44 42.668484 42.668484 44 41 44 L 9 44 C 7.3315161 44 6 42.668484 6 41 L 6 9 C 6 7.3315161 7.3315161 6 9 6 z M 16 17 C 11.59 17 8 20.59 8 25 C 8 29.41 11.59 33 16 33 C 20.41 33 24 29.41 24 25 C 24 20.59 20.41 17 16 17 z M 34 17 C 29.59 17 26 20.59 26 25 C 26 29.41 29.59 33 34 33 C 38.41 33 42 29.41 42 25 C 42 20.59 38.41 17 34 17 z\"/></svg>"),
+	Rules: []string{
+		"||flic.kr^",
+		"||flickr.com^",
+		"||flickr.net^",
+		"||flickrprints.com^",
+		"||flickrpro.com^",
+		"||staticflickr.com^",
+	},
 }, {
 	ID:      "gog",
 	Name:    "GOG",
@@ -1325,6 +1345,13 @@ var blockedServices = []blockedService{{
 		"||kakao.com^",
 		"||kgslb.com^",
 	},
+}, {
+	ID:      "kik",
+	Name:    "Kik",
+	IconSVG: []byte("<svg xmlns=\"http://www.w3.org/2000/svg\" fill=\"currentColor\" viewBox=\"0 0 50 50\"><path d=\"M 3.5039062 12 C 1.9347705 11.994817 0.87857579 12.97636 0.4453125 13.849609 C 0.01204921 14.722858 0 15.564453 0 15.564453 A 1.0001 1.0001 0 0 0 0 15.59375 L 0 35 A 1.0001 1.0001 0 0 0 0.00390625 35.078125 C 0.00390625 35.078125 0.05696144 35.828363 0.5390625 36.554688 C 1.0211636 37.281011 2.0459252 38.004441 3.5019531 38.001953 C 4.8916439 38.000053 5.8837351 37.273604 6.3769531 36.578125 C 6.8701712 35.882646 6.9863281 35.166016 6.9863281 35.166016 A 1.0001 1.0001 0 0 0 7 35 L 7 31.802734 L 10.167969 36.554688 L 10.130859 36.494141 C 10.511831 37.164615 11.143097 37.525465 11.742188 37.730469 C 12.341278 37.935473 12.950104 38.001953 13.5 38.001953 C 15.411725 38.001953 17 36.431487 17 34.5 C 17 34.056649 16.90825 34.03442 16.851562 33.912109 C 16.794882 33.789799 16.730864 33.671331 16.654297 33.537109 C 16.501163 33.268666 16.298339 32.944015 16.058594 32.572266 C 15.579103 31.828767 14.950355 30.90254 14.322266 29.992188 C 13.310206 28.525308 12.655222 27.610988 12.300781 27.113281 L 14.707031 24.707031 A 1.0001 1.0001 0 0 0 14.738281 24.673828 C 14.738281 24.673828 15.354706 24.012223 15.748047 23.042969 C 16.141388 22.073714 16.298687 20.56089 15.259766 19.349609 C 14.281705 18.208994 12.842689 18.141009 11.925781 18.416016 C 11.008874 18.691022 10.371094 19.222656 10.371094 19.222656 A 1.0001 1.0001 0 0 0 10.292969 19.292969 L 6.9980469 22.587891 L 6.9921875 15.646484 A 1.0001 1.0001 0 0 0 6.9902344 15.580078 C 6.9902344 15.580078 6.9441634 14.743069 6.5058594 13.875 C 6.0675579 13.006938 5.0412971 12.005313 3.5039062 12 z M 30.503906 12 C 28.93477 11.9948 27.878577 12.97636 27.445312 13.849609 C 27.012049 14.722858 27 15.564453 27 15.564453 A 1.0001 1.0001 0 0 0 27 15.59375 L 27 35 A 1.0001 1.0001 0 0 0 27.003906 35.078125 C 27.003906 35.078125 27.056966 35.828363 27.539062 36.554688 C 28.021165 37.281011 29.045925 38.004441 30.501953 38.001953 C 31.891644 38.000053 32.883735 37.273604 33.376953 36.578125 C 33.870171 35.882646 33.986328 35.166016 33.986328 35.166016 A 1.0001 1.0001 0 0 0 34 35 L 34 31.802734 L 37.167969 36.554688 L 37.130859 36.494141 C 37.511831 37.164615 38.143096 37.525465 38.742188 37.730469 C 39.341277 37.935473 39.950104 38.001953 40.5 38.001953 C 42.411725 38.001953 44 36.431487 44 34.5 C 44 34.056649 43.908251 34.03442 43.851562 33.912109 C 43.794882 33.789799 43.730864 33.671331 43.654297 33.537109 C 43.501163 33.268666 43.298339 32.944015 43.058594 32.572266 C 42.579103 31.828767 41.950355 30.90254 41.322266 29.992188 C 40.310206 28.525308 39.655222 27.610988 39.300781 27.113281 L 41.707031 24.707031 A 1.0001 1.0001 0 0 0 41.738281 24.673828 C 41.738281 24.673828 42.354706 24.012223 42.748047 23.042969 C 43.141388 22.073714 43.298687 20.56089 42.259766 19.349609 C 41.281705 18.208994 39.842689 18.141009 38.925781 18.416016 C 38.008874 18.691022 37.371094 19.222656 37.371094 19.222656 A 1.0001 1.0001 0 0 0 37.292969 19.292969 L 33.998047 22.587891 L 33.992188 15.646484 A 1.0001 1.0001 0 0 0 33.990234 15.580078 C 33.990234 15.580078 33.944164 14.743069 33.505859 13.875 C 33.067647 13.006938 32.041297 12.005313 30.503906 12 z M 21.507812 18 C 19.85324 17.98686 18.785557 19.124468 18.382812 20.09375 C 18.181441 20.578391 18.090615 21.031738 18.044922 21.375 C 18.022072 21.546631 18.011459 21.69063 18.005859 21.796875 C 18.000252 21.90312 18 22.065333 18 21.984375 L 17.982422 34.998047 A 1.0001 1.0001 0 0 0 17.990234 35.134766 C 17.990234 35.134766 18.085674 35.862804 18.576172 36.568359 C 19.06667 37.273915 20.071581 37.997467 21.486328 38 C 22.885358 38.0026 23.885897 37.278643 24.380859 36.580078 C 24.875822 35.881513 24.986328 35.160156 24.986328 35.160156 A 1.0001 1.0001 0 0 0 25 35 L 25 21.996094 C 25 21.996094 25.02572 21.084043 24.625 20.117188 C 24.224283 19.150332 23.164841 18.013078 21.507812 18 z M 46.5 24 C 44.578848 24 43 25.578848 43 27.5 C 43 29.421152 44.578848 31 46.5 31 C 48.421152 31 50 29.421152 50 27.5 C 50 25.578848 48.421152 24 46.5 24 z M 46.5 26 C 47.340272 26 48 26.659728 48 27.5 C 48 28.340272 47.340272 29 46.5 29 C 45.659728 29 45 28.340272 45 27.5 C 45 26.659728 45.659728 26 46.5 26 z\"/></svg>"),
+	Rules: []string{
+		"||kik.com^",
+	},
 }, {
 	ID:      "lazada",
 	Name:    "Lazada",
@@ -1385,6 +1412,7 @@ var blockedServices = []blockedService{{
 	Rules: []string{
 		"||aus.social^",
 		"||awscommunity.social^",
+		"||climatejustice.social^",
 		"||cyberplace.social^",
 		"||defcon.social^",
 		"||det.social^",
@@ -1438,9 +1466,10 @@ var blockedServices = []blockedService{{
 		"||mindly.social^",
 		"||mstdn.ca^",
 		"||mstdn.jp^",
+		"||mstdn.party^",
+		"||mstdn.plus^",
 		"||mstdn.social^",
 		"||muenchen.social^",
-		"||muenster.im^",
 		"||newsie.social^",
 		"||noc.social^",
 		"||norden.social^",
@@ -1469,7 +1498,6 @@ var blockedServices = []blockedService{{
 		"||techhub.social^",
 		"||theblower.au^",
 		"||tkz.one^",
-		"||todon.eu^",
 		"||toot.aquilenet.fr^",
 		"||toot.community^",
 		"||toot.funami.tech^",
@@ -1480,7 +1508,6 @@ var blockedServices = []blockedService{{
 		"||union.place^",
 		"||universeodon.com^",
 		"||urbanists.social^",
-		"||wien.rocks^",
 		"||wxw.moe^",
 	},
 }, {
@@ -1827,6 +1854,13 @@ var blockedServices = []blockedService{{
 		"||tx.me^",
 		"||usercontent.dev^",
 	},
+}, {
+	ID:      "tidal",
+	Name:    "Tidal",
+	IconSVG: []byte("<svg xmlns=\"http://www.w3.org/2000/svg\" fill=\"currentColor\" viewBox=\"0 0 50 50\"><path d=\"M 9 12 C 8.7615 12 8.5237969 12.091437 8.3417969 12.273438 L 1.2734375 19.341797 C 0.9094375 19.705797 0.9094375 20.294203 1.2734375 20.658203 L 8.3417969 27.726562 C 8.7057969 28.090563 9.2942031 28.090563 9.6582031 27.726562 L 16.726562 20.658203 C 16.908563 20.476203 17 20.2385 17 20 C 17 19.7615 16.908563 19.523797 16.726562 19.341797 L 9.6582031 12.273438 C 9.4762031 12.091437 9.2385 12 9 12 z M 17 20 C 17 20.2385 17.091438 20.476203 17.273438 20.658203 L 24.341797 27.726562 C 24.523797 27.908563 24.7615 28 25 28 C 25.2385 28 25.476203 27.908563 25.658203 27.726562 L 32.726562 20.658203 C 32.908563 20.476203 33 20.2385 33 20 C 33 19.7615 32.908563 19.523797 32.726562 19.341797 L 25.658203 12.273438 C 25.294203 11.909437 24.705797 11.909437 24.341797 12.273438 L 17.273438 19.341797 C 17.091437 19.523797 17 19.7615 17 20 z M 33 20 C 33 20.2385 33.091437 20.476203 33.273438 20.658203 L 40.341797 27.726562 C 40.705797 28.090563 41.294203 28.090563 41.658203 27.726562 L 48.726562 20.658203 C 49.090563 20.294203 49.090563 19.705797 48.726562 19.341797 L 41.658203 12.273438 C 41.294203 11.909437 40.705797 11.909437 40.341797 12.273438 L 33.273438 19.341797 C 33.091437 19.523797 33 19.7615 33 20 z M 25 28 C 24.7615 28 24.523797 28.091437 24.341797 28.273438 L 17.273438 35.341797 C 16.909437 35.705797 16.909437 36.294203 17.273438 36.658203 L 24.341797 43.726562 C 24.705797 44.090562 25.294203 44.090562 25.658203 43.726562 L 32.726562 36.658203 C 33.090563 36.294203 33.090563 35.705797 32.726562 35.341797 L 25.658203 28.273438 C 25.476203 28.091437 25.2385 28 25 28 z\"/></svg>"),
+	Rules: []string{
+		"||tidal.com^",
+	},
 }, {
 	ID:      "tiktok",
 	Name:    "TikTok",

internal/home/client.go

@@ -7,7 +7,9 @@ import (
 
 	"github.com/AdguardTeam/AdGuardHome/internal/filtering"
 	"github.com/AdguardTeam/AdGuardHome/internal/filtering/safesearch"
+	"github.com/AdguardTeam/AdGuardHome/internal/whois"
 	"github.com/AdguardTeam/dnsproxy/proxy"
+	"github.com/AdguardTeam/golibs/stringutil"
 )
 
 // Client contains information about persistent clients.
@@ -37,6 +39,19 @@ type Client struct {
 	IgnoreStatistics      bool
 }
 
+// ShallowClone returns a deep copy of the client, except upstreamConfig,
+// safeSearchConf, SafeSearch fields, because it's difficult to copy them.
+func (c *Client) ShallowClone() (sh *Client) {
+	clone := *c
+
+	clone.IDs = stringutil.CloneSlice(c.IDs)
+	clone.Tags = stringutil.CloneSlice(c.Tags)
+	clone.BlockedServices = stringutil.CloneSlice(c.BlockedServices)
+	clone.Upstreams = stringutil.CloneSlice(c.Upstreams)
+
+	return &clone
+}
+
 // closeUpstreams closes the client-specific upstream config of c if any.
 func (c *Client) closeUpstreams() (err error) {
 	if c.upstreamConfig != nil {
@@ -113,14 +128,13 @@ func (cs clientSource) MarshalText() (text []byte, err error) {
 // RuntimeClient is a client information about which has been obtained using the
 // source described in the Source field.
 type RuntimeClient struct {
-	WHOISInfo *RuntimeClientWHOISInfo
-	Host      string
-	Source    clientSource
-}
+	// WHOIS is the filtered WHOIS data of a client.
+	WHOIS *whois.Info
 
-// RuntimeClientWHOISInfo is the filtered WHOIS data for a runtime client.
-type RuntimeClientWHOISInfo struct {
-	City    string `json:"city,omitempty"`
-	Country string `json:"country,omitempty"`
-	Orgname string `json:"orgname,omitempty"`
+	// Host is the host name of a client.
+	Host string
+
+	// Source is the source from which the information about the client has
+	// been obtained.
+	Source clientSource
 }

internal/home/clients.go

@@ -14,6 +14,7 @@ import (
 	"github.com/AdguardTeam/AdGuardHome/internal/dnsforward"
 	"github.com/AdguardTeam/AdGuardHome/internal/filtering"
 	"github.com/AdguardTeam/AdGuardHome/internal/querylog"
+	"github.com/AdguardTeam/AdGuardHome/internal/whois"
 	"github.com/AdguardTeam/dnsproxy/proxy"
 	"github.com/AdguardTeam/dnsproxy/upstream"
 	"github.com/AdguardTeam/golibs/errors"
@@ -307,18 +308,6 @@ func (clients *clientsContainer) clientSource(ip netip.Addr) (src clientSource)
 	return rc.Source
 }
 
-func toQueryLogWHOIS(wi *RuntimeClientWHOISInfo) (cw *querylog.ClientWHOIS) {
-	if wi == nil {
-		return &querylog.ClientWHOIS{}
-	}
-
-	return &querylog.ClientWHOIS{
-		City:    wi.City,
-		Country: wi.Country,
-		Orgname: wi.Orgname,
-	}
-}
-
 // findMultiple is a wrapper around Find to make it a valid client finder for
 // the query log.  c is never nil; if no information about the client is found,
 // it returns an artificial client record by only setting the blocking-related
@@ -352,7 +341,7 @@ func (clients *clientsContainer) clientOrArtificial(
 	defer func() {
 		c.Disallowed, c.DisallowedRule = clients.dnsServer.IsBlockedClient(ip, id)
 		if c.WHOIS == nil {
-			c.WHOIS = &querylog.ClientWHOIS{}
+			c.WHOIS = &whois.Info{}
 		}
 	}()
 
@@ -369,7 +358,7 @@ func (clients *clientsContainer) clientOrArtificial(
 	if ok {
 		return &querylog.Client{
 			Name:  rc.Host,
-			WHOIS: toQueryLogWHOIS(rc.WHOISInfo),
+			WHOIS: rc.WHOIS,
 		}, false
 	}
 
@@ -378,6 +367,7 @@ func (clients *clientsContainer) clientOrArtificial(
 	}, true
 }
 
+// Find returns a shallow copy of the client if there is one found.
 func (clients *clientsContainer) Find(id string) (c *Client, ok bool) {
 	clients.lock.Lock()
 	defer clients.lock.Unlock()
@@ -387,20 +377,18 @@ func (clients *clientsContainer) Find(id string) (c *Client, ok bool) {
 		return nil, false
 	}
 
-	c.IDs = stringutil.CloneSlice(c.IDs)
-	c.Tags = stringutil.CloneSlice(c.Tags)
-	c.BlockedServices = stringutil.CloneSlice(c.BlockedServices)
-	c.Upstreams = stringutil.CloneSlice(c.Upstreams)
-
-	return c, true
+	return c.ShallowClone(), true
 }
 
 // shouldCountClient is a wrapper around Find to make it a valid client
 // information finder for the statistics.  If no information about the client
 // is found, it returns true.
 func (clients *clientsContainer) shouldCountClient(ids []string) (y bool) {
+	clients.lock.Lock()
+	defer clients.lock.Unlock()
+
 	for _, id := range ids {
-		client, ok := clients.Find(id)
+		client, ok := clients.findLocked(id)
 		if ok {
 			return !client.IgnoreStatistics
 		}
@@ -617,6 +605,15 @@ func (clients *clientsContainer) Add(c *Client) (ok bool, err error) {
 		}
 	}
 
+	clients.add(c)
+
+	log.Debug("clients: added %q: ID:%q [%d]", c.Name, c.IDs, len(clients.list))
+
+	return true, nil
+}
+
+// add c to the indexes. clients.lock is expected to be locked.
+func (clients *clientsContainer) add(c *Client) {
 	// update Name index
 	clients.list[c.Name] = c
 
@@ -624,10 +621,6 @@ func (clients *clientsContainer) Add(c *Client) (ok bool, err error) {
 	for _, id := range c.IDs {
 		clients.idIndex[id] = c
 	}
-
-	log.Debug("clients: added %q: ID:%q [%d]", c.Name, c.IDs, len(clients.list))
-
-	return true, nil
 }
 
 // Del removes a client.  ok is false if there is no such client.
@@ -645,92 +638,59 @@ func (clients *clientsContainer) Del(name string) (ok bool) {
 		log.Error("client container: removing client %s: %s", name, err)
 	}
 
+	clients.del(c)
+
+	return true
+}
+
+// del removes c from the indexes. clients.lock is expected to be locked.
+func (clients *clientsContainer) del(c *Client) {
 	// update Name index
-	delete(clients.list, name)
+	delete(clients.list, c.Name)
 
 	// update ID index
 	for _, id := range c.IDs {
 		delete(clients.idIndex, id)
 	}
-
-	return true
 }
 
 // Update updates a client by its name.
-func (clients *clientsContainer) Update(name string, c *Client) (err error) {
+func (clients *clientsContainer) Update(prev, c *Client) (err error) {
 	err = clients.check(c)
 	if err != nil {
+		// Don't wrap the error since it's informative enough as is.
 		return err
 	}
 
 	clients.lock.Lock()
 	defer clients.lock.Unlock()
 
-	prev, ok := clients.list[name]
-	if !ok {
-		return errors.Error("client not found")
-	}
-
-	// First, check the name index.
+	// Check the name index.
 	if prev.Name != c.Name {
-		_, ok = clients.list[c.Name]
+		_, ok := clients.list[c.Name]
 		if ok {
 			return errors.Error("client already exists")
 		}
 	}
 
-	// Second, update the ID index.
-	err = clients.updateIDIndex(prev, c.IDs)
-	if err != nil {
-		// Don't wrap the error, because it's informative enough as is.
-		return err
-	}
-
-	// Update name index.
-	if prev.Name != c.Name {
-		delete(clients.list, prev.Name)
-		clients.list[c.Name] = prev
-	}
-
-	// Update upstreams cache.
-	err = c.closeUpstreams()
-	if err != nil {
-		return err
-	}
-
-	*prev = *c
-
-	return nil
-}
-
-// updateIDIndex updates the ID index data for cli using the information from
-// newIDs.
-func (clients *clientsContainer) updateIDIndex(cli *Client, newIDs []string) (err error) {
-	if slices.Equal(cli.IDs, newIDs) {
-		return nil
-	}
-
-	for _, id := range newIDs {
-		existing, ok := clients.idIndex[id]
-		if ok && existing != cli {
-			return fmt.Errorf("id %q is used by client with name %q", id, existing.Name)
+	// Check the ID index.
+	if !slices.Equal(prev.IDs, c.IDs) {
+		for _, id := range c.IDs {
+			existing, ok := clients.idIndex[id]
+			if ok && existing != prev {
+				return fmt.Errorf("id %q is used by client with name %q", id, existing.Name)
+			}
 		}
 	}
 
-	// Update the IDs in the index.
-	for _, id := range cli.IDs {
-		delete(clients.idIndex, id)
-	}
-
-	for _, id := range newIDs {
-		clients.idIndex[id] = cli
-	}
+	clients.del(prev)
+	clients.add(c)
 
 	return nil
 }
 
 // setWHOISInfo sets the WHOIS information for a client.
-func (clients *clientsContainer) setWHOISInfo(ip netip.Addr, wi *RuntimeClientWHOISInfo) {
+func (clients *clientsContainer) setWHOISInfo(ip netip.Addr, wi *whois.Info) {
 	clients.lock.Lock()
 	defer clients.lock.Unlock()
 
@@ -742,7 +702,7 @@ func (clients *clientsContainer) setWHOISInfo(ip netip.Addr, wi *RuntimeClientWH
 
 	rc, ok := clients.ipToRC[ip]
 	if ok {
-		rc.WHOISInfo = wi
+		rc.WHOIS = wi
 		log.Debug("clients: set whois info for runtime client %s: %+v", rc.Host, wi)
 
 		return
@@ -754,7 +714,7 @@ func (clients *clientsContainer) setWHOISInfo(ip netip.Addr, wi *RuntimeClientWH
 		Source: ClientSourceWHOIS,
 	}
 
-	rc.WHOISInfo = wi
+	rc.WHOIS = wi
 
 	clients.ipToRC[ip] = rc
 
@@ -791,9 +751,9 @@ func (clients *clientsContainer) addHostLocked(
 		rc.Source = src
 	} else {
 		rc = &RuntimeClient{
-			Host:      host,
-			Source:    src,
-			WHOISInfo: &RuntimeClientWHOISInfo{},
+			Host:   host,
+			Source: src,
+			WHOIS:  &whois.Info{},
 		}
 
 		clients.ipToRC[ip] = rc

internal/home/clients_test.go

@@ -3,15 +3,13 @@ package home
 import (
 	"net"
 	"net/netip"
-	"os"
 	"runtime"
 	"testing"
 	"time"
 
 	"github.com/AdguardTeam/AdGuardHome/internal/dhcpd"
 	"github.com/AdguardTeam/AdGuardHome/internal/filtering"
-	"github.com/AdguardTeam/golibs/testutil"
-
+	"github.com/AdguardTeam/AdGuardHome/internal/whois"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
@@ -100,22 +98,8 @@ func TestClients(t *testing.T) {
 		assert.False(t, ok)
 	})
 
-	t.Run("update_fail_name", func(t *testing.T) {
-		err := clients.Update("client3", &Client{
-			IDs:  []string{"1.2.3.0"},
-			Name: "client3",
-		})
-		require.Error(t, err)
-
-		err = clients.Update("client3", &Client{
-			IDs:  []string{"1.2.3.0"},
-			Name: "client2",
-		})
-		assert.Error(t, err)
-	})
-
 	t.Run("update_fail_ip", func(t *testing.T) {
-		err := clients.Update("client1", &Client{
+		err := clients.Update(&Client{Name: "client1"}, &Client{
 			IDs:  []string{"2.2.2.2"},
 			Name: "client1",
 		})
@@ -131,7 +115,10 @@ func TestClients(t *testing.T) {
 			cliNewIP = netip.MustParseAddr(cliNew)
 		)
 
-		err := clients.Update("client1", &Client{
+		prev, ok := clients.list["client1"]
+		require.True(t, ok)
+
+		err := clients.Update(prev, &Client{
 			IDs:  []string{cliNew},
 			Name: "client1",
 		})
@@ -140,7 +127,10 @@ func TestClients(t *testing.T) {
 		assert.Equal(t, clients.clientSource(cliOldIP), ClientSourceNone)
 		assert.Equal(t, clients.clientSource(cliNewIP), ClientSourcePersistent)
 
-		err = clients.Update("client1", &Client{
+		prev, ok = clients.list["client1"]
+		require.True(t, ok)
+
+		err = clients.Update(prev, &Client{
 			IDs:            []string{cliNew},
 			Name:           "client1-renamed",
 			UseOwnSettings: true,
@@ -209,7 +199,7 @@ func TestClients(t *testing.T) {
 
 func TestClientsWHOIS(t *testing.T) {
 	clients := newClientsContainer()
-	whois := &RuntimeClientWHOISInfo{
+	whois := &whois.Info{
 		Country: "AU",
 		Orgname: "Example Org",
 	}
@@ -220,7 +210,7 @@ func TestClientsWHOIS(t *testing.T) {
 		rc := clients.ipToRC[ip]
 		require.NotNil(t, rc)
 
-		assert.Equal(t, rc.WHOISInfo, whois)
+		assert.Equal(t, rc.WHOIS, whois)
 	})
 
 	t.Run("existing_auto-client", func(t *testing.T) {
@@ -232,7 +222,7 @@ func TestClientsWHOIS(t *testing.T) {
 		rc := clients.ipToRC[ip]
 		require.NotNil(t, rc)
 
-		assert.Equal(t, rc.WHOISInfo, whois)
+		assert.Equal(t, rc.WHOIS, whois)
 	})
 
 	t.Run("can't_set_manually-added", func(t *testing.T) {
@@ -283,8 +273,8 @@ func TestClientsAddExisting(t *testing.T) {
 
 		// First, init a DHCP server with a single static lease.
 		config := &dhcpd.ServerConfig{
-			Enabled:    true,
-			DBFilePath: "leases.db",
+			Enabled: true,
+			DataDir: t.TempDir(),
 			Conf4: dhcpd.V4ServerConf{
 				Enabled:    true,
 				GatewayIP:  netip.MustParseAddr("1.2.3.1"),
@@ -296,9 +286,6 @@ func TestClientsAddExisting(t *testing.T) {
 
 		dhcpServer, err := dhcpd.Create(config)
 		require.NoError(t, err)
-		testutil.CleanupAndRequireSuccess(t, func() (err error) {
-			return os.Remove("leases.db")
-		})
 
 		clients.dhcpServer = dhcpServer