Pull request 2155: AG-27492-client-persistent-index
Squashed commit of the following:
commit 1f99640f9f0a24ade7d2325737edf83ad0da3895
Merge: 5a9211e8c 9276afd79
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date: Tue Feb 27 13:13:03 2024 +0300
Merge branch 'master' into AG-27492-client-persistent-index
commit 5a9211e8c7832700ae4f58cea25ad38ccba98efa
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date: Thu Feb 22 19:08:35 2024 +0300
all: add todo
commit a4fc94904b0b05ed5ca5ba270125a7d7fb1e6817
Author: Stanislav Chzhen <s.chzhen@adguard.com>
Date: Wed Feb 21 14:48:33 2024 +0300
all: client persistent index
This commit is contained in:
249
internal/client/index.go
Normal file
249
internal/client/index.go
Normal file
@@ -0,0 +1,249 @@
|
||||
package client
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"net"
|
||||
"net/netip"
|
||||
|
||||
"github.com/AdguardTeam/AdGuardHome/internal/aghalg"
|
||||
)
|
||||
|
||||
// macKey contains MAC as byte array of 6, 8, or 20 bytes.
|
||||
type macKey any
|
||||
|
||||
// macToKey converts mac into key of type macKey, which is used as the key of
|
||||
// the [clientIndex.macToUID]. mac must be valid MAC address.
|
||||
func macToKey(mac net.HardwareAddr) (key macKey) {
|
||||
switch len(mac) {
|
||||
case 6:
|
||||
return [6]byte(mac)
|
||||
case 8:
|
||||
return [8]byte(mac)
|
||||
case 20:
|
||||
return [20]byte(mac)
|
||||
default:
|
||||
panic(fmt.Errorf("invalid mac address %#v", mac))
|
||||
}
|
||||
}
|
||||
|
||||
// Index stores all information about persistent clients.
|
||||
type Index struct {
|
||||
// clientIDToUID maps client ID to UID.
|
||||
clientIDToUID map[string]UID
|
||||
|
||||
// ipToUID maps IP address to UID.
|
||||
ipToUID map[netip.Addr]UID
|
||||
|
||||
// macToUID maps MAC address to UID.
|
||||
macToUID map[macKey]UID
|
||||
|
||||
// uidToClient maps UID to the persistent client.
|
||||
uidToClient map[UID]*Persistent
|
||||
|
||||
// subnetToUID maps subnet to UID.
|
||||
subnetToUID aghalg.SortedMap[netip.Prefix, UID]
|
||||
}
|
||||
|
||||
// NewIndex initializes the new instance of client index.
|
||||
func NewIndex() (ci *Index) {
|
||||
return &Index{
|
||||
clientIDToUID: map[string]UID{},
|
||||
ipToUID: map[netip.Addr]UID{},
|
||||
subnetToUID: aghalg.NewSortedMap[netip.Prefix, UID](subnetCompare),
|
||||
macToUID: map[macKey]UID{},
|
||||
uidToClient: map[UID]*Persistent{},
|
||||
}
|
||||
}
|
||||
|
||||
// Add stores information about a persistent client in the index. c must be
|
||||
// non-nil and contain UID.
|
||||
func (ci *Index) Add(c *Persistent) {
|
||||
if (c.UID == UID{}) {
|
||||
panic("client must contain uid")
|
||||
}
|
||||
|
||||
for _, id := range c.ClientIDs {
|
||||
ci.clientIDToUID[id] = c.UID
|
||||
}
|
||||
|
||||
for _, ip := range c.IPs {
|
||||
ci.ipToUID[ip] = c.UID
|
||||
}
|
||||
|
||||
for _, pref := range c.Subnets {
|
||||
ci.subnetToUID.Set(pref, c.UID)
|
||||
}
|
||||
|
||||
for _, mac := range c.MACs {
|
||||
k := macToKey(mac)
|
||||
ci.macToUID[k] = c.UID
|
||||
}
|
||||
|
||||
ci.uidToClient[c.UID] = c
|
||||
}
|
||||
|
||||
// Clashes returns an error if the index contains a different persistent client
|
||||
// with at least a single identifier contained by c. c must be non-nil.
|
||||
func (ci *Index) Clashes(c *Persistent) (err error) {
|
||||
for _, id := range c.ClientIDs {
|
||||
existing, ok := ci.clientIDToUID[id]
|
||||
if ok && existing != c.UID {
|
||||
p := ci.uidToClient[existing]
|
||||
|
||||
return fmt.Errorf("another client %q uses the same ID %q", p.Name, id)
|
||||
}
|
||||
}
|
||||
|
||||
p, ip := ci.clashesIP(c)
|
||||
if p != nil {
|
||||
return fmt.Errorf("another client %q uses the same IP %q", p.Name, ip)
|
||||
}
|
||||
|
||||
p, s := ci.clashesSubnet(c)
|
||||
if p != nil {
|
||||
return fmt.Errorf("another client %q uses the same subnet %q", p.Name, s)
|
||||
}
|
||||
|
||||
p, mac := ci.clashesMAC(c)
|
||||
if p != nil {
|
||||
return fmt.Errorf("another client %q uses the same MAC %q", p.Name, mac)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// clashesIP returns a previous client with the same IP address as c. c must be
|
||||
// non-nil.
|
||||
func (ci *Index) clashesIP(c *Persistent) (p *Persistent, ip netip.Addr) {
|
||||
for _, ip := range c.IPs {
|
||||
existing, ok := ci.ipToUID[ip]
|
||||
if ok && existing != c.UID {
|
||||
return ci.uidToClient[existing], ip
|
||||
}
|
||||
}
|
||||
|
||||
return nil, netip.Addr{}
|
||||
}
|
||||
|
||||
// clashesSubnet returns a previous client with the same subnet as c. c must be
|
||||
// non-nil.
|
||||
func (ci *Index) clashesSubnet(c *Persistent) (p *Persistent, s netip.Prefix) {
|
||||
for _, s = range c.Subnets {
|
||||
var existing UID
|
||||
var ok bool
|
||||
|
||||
ci.subnetToUID.Range(func(p netip.Prefix, uid UID) (cont bool) {
|
||||
if s == p {
|
||||
existing = uid
|
||||
ok = true
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
return true
|
||||
})
|
||||
|
||||
if ok && existing != c.UID {
|
||||
return ci.uidToClient[existing], s
|
||||
}
|
||||
}
|
||||
|
||||
return nil, netip.Prefix{}
|
||||
}
|
||||
|
||||
// clashesMAC returns a previous client with the same MAC address as c. c must
|
||||
// be non-nil.
|
||||
func (ci *Index) clashesMAC(c *Persistent) (p *Persistent, mac net.HardwareAddr) {
|
||||
for _, mac = range c.MACs {
|
||||
k := macToKey(mac)
|
||||
existing, ok := ci.macToUID[k]
|
||||
if ok && existing != c.UID {
|
||||
return ci.uidToClient[existing], mac
|
||||
}
|
||||
}
|
||||
|
||||
return nil, nil
|
||||
}
|
||||
|
||||
// Find finds persistent client by string representation of the client ID, IP
|
||||
// address, or MAC.
|
||||
func (ci *Index) Find(id string) (c *Persistent, ok bool) {
|
||||
uid, found := ci.clientIDToUID[id]
|
||||
if found {
|
||||
return ci.uidToClient[uid], true
|
||||
}
|
||||
|
||||
ip, err := netip.ParseAddr(id)
|
||||
if err == nil {
|
||||
// MAC addresses can be successfully parsed as IP addresses.
|
||||
c, found = ci.findByIP(ip)
|
||||
if found {
|
||||
return c, true
|
||||
}
|
||||
}
|
||||
|
||||
mac, err := net.ParseMAC(id)
|
||||
if err == nil {
|
||||
return ci.findByMAC(mac)
|
||||
}
|
||||
|
||||
return nil, false
|
||||
}
|
||||
|
||||
// find finds persistent client by IP address.
|
||||
func (ci *Index) findByIP(ip netip.Addr) (c *Persistent, found bool) {
|
||||
uid, found := ci.ipToUID[ip]
|
||||
if found {
|
||||
return ci.uidToClient[uid], true
|
||||
}
|
||||
|
||||
ci.subnetToUID.Range(func(pref netip.Prefix, id UID) (cont bool) {
|
||||
if pref.Contains(ip) {
|
||||
uid, found = id, true
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
return true
|
||||
})
|
||||
|
||||
if found {
|
||||
return ci.uidToClient[uid], true
|
||||
}
|
||||
|
||||
return nil, false
|
||||
}
|
||||
|
||||
// find finds persistent client by MAC.
|
||||
func (ci *Index) findByMAC(mac net.HardwareAddr) (c *Persistent, found bool) {
|
||||
k := macToKey(mac)
|
||||
uid, found := ci.macToUID[k]
|
||||
if found {
|
||||
return ci.uidToClient[uid], true
|
||||
}
|
||||
|
||||
return nil, false
|
||||
}
|
||||
|
||||
// Delete removes information about persistent client from the index. c must be
|
||||
// non-nil.
|
||||
func (ci *Index) Delete(c *Persistent) {
|
||||
for _, id := range c.ClientIDs {
|
||||
delete(ci.clientIDToUID, id)
|
||||
}
|
||||
|
||||
for _, ip := range c.IPs {
|
||||
delete(ci.ipToUID, ip)
|
||||
}
|
||||
|
||||
for _, pref := range c.Subnets {
|
||||
ci.subnetToUID.Del(pref)
|
||||
}
|
||||
|
||||
for _, mac := range c.MACs {
|
||||
k := macToKey(mac)
|
||||
delete(ci.macToUID, k)
|
||||
}
|
||||
|
||||
delete(ci.uidToClient, c.UID)
|
||||
}
|
||||
223
internal/client/index_internal_test.go
Normal file
223
internal/client/index_internal_test.go
Normal file
@@ -0,0 +1,223 @@
|
||||
package client
|
||||
|
||||
import (
|
||||
"net"
|
||||
"net/netip"
|
||||
"testing"
|
||||
|
||||
"github.com/stretchr/testify/assert"
|
||||
"github.com/stretchr/testify/require"
|
||||
)
|
||||
|
||||
// newIDIndex is a helper function that returns a client index filled with
|
||||
// persistent clients from the m. It also generates a UID for each client.
|
||||
func newIDIndex(m []*Persistent) (ci *Index) {
|
||||
ci = NewIndex()
|
||||
|
||||
for _, c := range m {
|
||||
c.UID = MustNewUID()
|
||||
ci.Add(c)
|
||||
}
|
||||
|
||||
return ci
|
||||
}
|
||||
|
||||
func TestClientIndex(t *testing.T) {
|
||||
const (
|
||||
cliIPNone = "1.2.3.4"
|
||||
cliIP1 = "1.1.1.1"
|
||||
cliIP2 = "2.2.2.2"
|
||||
|
||||
cliIPv6 = "1:2:3::4"
|
||||
|
||||
cliSubnet = "2.2.2.0/24"
|
||||
cliSubnetIP = "2.2.2.222"
|
||||
|
||||
cliID = "client-id"
|
||||
cliMAC = "11:11:11:11:11:11"
|
||||
)
|
||||
|
||||
clients := []*Persistent{{
|
||||
Name: "client1",
|
||||
IPs: []netip.Addr{
|
||||
netip.MustParseAddr(cliIP1),
|
||||
netip.MustParseAddr(cliIPv6),
|
||||
},
|
||||
}, {
|
||||
Name: "client2",
|
||||
IPs: []netip.Addr{netip.MustParseAddr(cliIP2)},
|
||||
Subnets: []netip.Prefix{netip.MustParsePrefix(cliSubnet)},
|
||||
}, {
|
||||
Name: "client_with_mac",
|
||||
MACs: []net.HardwareAddr{mustParseMAC(cliMAC)},
|
||||
}, {
|
||||
Name: "client_with_id",
|
||||
ClientIDs: []string{cliID},
|
||||
}}
|
||||
|
||||
ci := newIDIndex(clients)
|
||||
|
||||
testCases := []struct {
|
||||
want *Persistent
|
||||
name string
|
||||
ids []string
|
||||
}{{
|
||||
name: "ipv4_ipv6",
|
||||
ids: []string{cliIP1, cliIPv6},
|
||||
want: clients[0],
|
||||
}, {
|
||||
name: "ipv4_subnet",
|
||||
ids: []string{cliIP2, cliSubnetIP},
|
||||
want: clients[1],
|
||||
}, {
|
||||
name: "mac",
|
||||
ids: []string{cliMAC},
|
||||
want: clients[2],
|
||||
}, {
|
||||
name: "client_id",
|
||||
ids: []string{cliID},
|
||||
want: clients[3],
|
||||
}}
|
||||
|
||||
for _, tc := range testCases {
|
||||
t.Run(tc.name, func(t *testing.T) {
|
||||
for _, id := range tc.ids {
|
||||
c, ok := ci.Find(id)
|
||||
require.True(t, ok)
|
||||
|
||||
assert.Equal(t, tc.want, c)
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
t.Run("not_found", func(t *testing.T) {
|
||||
_, ok := ci.Find(cliIPNone)
|
||||
assert.False(t, ok)
|
||||
})
|
||||
}
|
||||
|
||||
func TestClientIndex_Clashes(t *testing.T) {
|
||||
const (
|
||||
cliIP1 = "1.1.1.1"
|
||||
cliSubnet = "2.2.2.0/24"
|
||||
cliSubnetIP = "2.2.2.222"
|
||||
cliID = "client-id"
|
||||
cliMAC = "11:11:11:11:11:11"
|
||||
)
|
||||
|
||||
clients := []*Persistent{{
|
||||
Name: "client_with_ip",
|
||||
IPs: []netip.Addr{netip.MustParseAddr(cliIP1)},
|
||||
}, {
|
||||
Name: "client_with_subnet",
|
||||
Subnets: []netip.Prefix{netip.MustParsePrefix(cliSubnet)},
|
||||
}, {
|
||||
Name: "client_with_mac",
|
||||
MACs: []net.HardwareAddr{mustParseMAC(cliMAC)},
|
||||
}, {
|
||||
Name: "client_with_id",
|
||||
ClientIDs: []string{cliID},
|
||||
}}
|
||||
|
||||
ci := newIDIndex(clients)
|
||||
|
||||
testCases := []struct {
|
||||
client *Persistent
|
||||
name string
|
||||
}{{
|
||||
name: "ipv4",
|
||||
client: clients[0],
|
||||
}, {
|
||||
name: "subnet",
|
||||
client: clients[1],
|
||||
}, {
|
||||
name: "mac",
|
||||
client: clients[2],
|
||||
}, {
|
||||
name: "client_id",
|
||||
client: clients[3],
|
||||
}}
|
||||
|
||||
for _, tc := range testCases {
|
||||
t.Run(tc.name, func(t *testing.T) {
|
||||
clone := tc.client.ShallowClone()
|
||||
clone.UID = MustNewUID()
|
||||
|
||||
err := ci.Clashes(clone)
|
||||
require.Error(t, err)
|
||||
|
||||
ci.Delete(tc.client)
|
||||
err = ci.Clashes(clone)
|
||||
require.NoError(t, err)
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
// mustParseMAC is wrapper around [net.ParseMAC] that panics if there is an
|
||||
// error.
|
||||
func mustParseMAC(s string) (mac net.HardwareAddr) {
|
||||
mac, err := net.ParseMAC(s)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
|
||||
return mac
|
||||
}
|
||||
|
||||
func TestMACToKey(t *testing.T) {
|
||||
testCases := []struct {
|
||||
want any
|
||||
name string
|
||||
in string
|
||||
}{{
|
||||
name: "column6",
|
||||
in: "00:00:5e:00:53:01",
|
||||
want: [6]byte(mustParseMAC("00:00:5e:00:53:01")),
|
||||
}, {
|
||||
name: "column8",
|
||||
in: "02:00:5e:10:00:00:00:01",
|
||||
want: [8]byte(mustParseMAC("02:00:5e:10:00:00:00:01")),
|
||||
}, {
|
||||
name: "column20",
|
||||
in: "00:00:00:00:fe:80:00:00:00:00:00:00:02:00:5e:10:00:00:00:01",
|
||||
want: [20]byte(mustParseMAC("00:00:00:00:fe:80:00:00:00:00:00:00:02:00:5e:10:00:00:00:01")),
|
||||
}, {
|
||||
name: "hyphen6",
|
||||
in: "00-00-5e-00-53-01",
|
||||
want: [6]byte(mustParseMAC("00-00-5e-00-53-01")),
|
||||
}, {
|
||||
name: "hyphen8",
|
||||
in: "02-00-5e-10-00-00-00-01",
|
||||
want: [8]byte(mustParseMAC("02-00-5e-10-00-00-00-01")),
|
||||
}, {
|
||||
name: "hyphen20",
|
||||
in: "00-00-00-00-fe-80-00-00-00-00-00-00-02-00-5e-10-00-00-00-01",
|
||||
want: [20]byte(mustParseMAC("00-00-00-00-fe-80-00-00-00-00-00-00-02-00-5e-10-00-00-00-01")),
|
||||
}, {
|
||||
name: "dot6",
|
||||
in: "0000.5e00.5301",
|
||||
want: [6]byte(mustParseMAC("0000.5e00.5301")),
|
||||
}, {
|
||||
name: "dot8",
|
||||
in: "0200.5e10.0000.0001",
|
||||
want: [8]byte(mustParseMAC("0200.5e10.0000.0001")),
|
||||
}, {
|
||||
name: "dot20",
|
||||
in: "0000.0000.fe80.0000.0000.0000.0200.5e10.0000.0001",
|
||||
want: [20]byte(mustParseMAC("0000.0000.fe80.0000.0000.0000.0200.5e10.0000.0001")),
|
||||
}}
|
||||
|
||||
for _, tc := range testCases {
|
||||
t.Run(tc.name, func(t *testing.T) {
|
||||
mac := mustParseMAC(tc.in)
|
||||
|
||||
key := macToKey(mac)
|
||||
assert.Equal(t, tc.want, key)
|
||||
})
|
||||
}
|
||||
|
||||
assert.Panics(t, func() {
|
||||
mac := net.HardwareAddr([]byte{1, 2, 3})
|
||||
_ = macToKey(mac)
|
||||
})
|
||||
}
|
||||
285
internal/client/persistent.go
Normal file
285
internal/client/persistent.go
Normal file
@@ -0,0 +1,285 @@
|
||||
package client
|
||||
|
||||
import (
|
||||
"encoding"
|
||||
"fmt"
|
||||
"net"
|
||||
"net/netip"
|
||||
"slices"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"github.com/AdguardTeam/AdGuardHome/internal/filtering"
|
||||
"github.com/AdguardTeam/AdGuardHome/internal/filtering/safesearch"
|
||||
"github.com/AdguardTeam/dnsproxy/proxy"
|
||||
"github.com/AdguardTeam/golibs/errors"
|
||||
"github.com/AdguardTeam/golibs/log"
|
||||
"github.com/AdguardTeam/golibs/netutil"
|
||||
"github.com/AdguardTeam/golibs/stringutil"
|
||||
"github.com/google/uuid"
|
||||
)
|
||||
|
||||
// UID is the type for the unique IDs of persistent clients.
|
||||
type UID uuid.UUID
|
||||
|
||||
// NewUID returns a new persistent client UID. Any error returned is an error
|
||||
// from the cryptographic randomness reader.
|
||||
func NewUID() (uid UID, err error) {
|
||||
uuidv7, err := uuid.NewV7()
|
||||
|
||||
return UID(uuidv7), err
|
||||
}
|
||||
|
||||
// MustNewUID is a wrapper around [NewUID] that panics if there is an error.
|
||||
func MustNewUID() (uid UID) {
|
||||
uid, err := NewUID()
|
||||
if err != nil {
|
||||
panic(fmt.Errorf("unexpected uuidv7 error: %w", err))
|
||||
}
|
||||
|
||||
return uid
|
||||
}
|
||||
|
||||
// type check
|
||||
var _ encoding.TextMarshaler = UID{}
|
||||
|
||||
// MarshalText implements the [encoding.TextMarshaler] for UID.
|
||||
func (uid UID) MarshalText() ([]byte, error) {
|
||||
return uuid.UUID(uid).MarshalText()
|
||||
}
|
||||
|
||||
// type check
|
||||
var _ encoding.TextUnmarshaler = (*UID)(nil)
|
||||
|
||||
// UnmarshalText implements the [encoding.TextUnmarshaler] interface for UID.
|
||||
func (uid *UID) UnmarshalText(data []byte) error {
|
||||
return (*uuid.UUID)(uid).UnmarshalText(data)
|
||||
}
|
||||
|
||||
// Persistent contains information about persistent clients.
|
||||
type Persistent struct {
|
||||
// UpstreamConfig is the custom upstream configuration for this client. If
|
||||
// it's nil, it has not been initialized yet. If it's non-nil and empty,
|
||||
// there are no valid upstreams. If it's non-nil and non-empty, these
|
||||
// upstream must be used.
|
||||
UpstreamConfig *proxy.CustomUpstreamConfig
|
||||
|
||||
// TODO(d.kolyshev): Make SafeSearchConf a pointer.
|
||||
SafeSearchConf filtering.SafeSearchConfig
|
||||
SafeSearch filtering.SafeSearch
|
||||
|
||||
// BlockedServices is the configuration of blocked services of a client.
|
||||
BlockedServices *filtering.BlockedServices
|
||||
|
||||
Name string
|
||||
|
||||
Tags []string
|
||||
Upstreams []string
|
||||
|
||||
IPs []netip.Addr
|
||||
// TODO(s.chzhen): Use netutil.Prefix.
|
||||
Subnets []netip.Prefix
|
||||
MACs []net.HardwareAddr
|
||||
ClientIDs []string
|
||||
|
||||
// UID is the unique identifier of the persistent client.
|
||||
UID UID
|
||||
|
||||
UpstreamsCacheSize uint32
|
||||
UpstreamsCacheEnabled bool
|
||||
|
||||
UseOwnSettings bool
|
||||
FilteringEnabled bool
|
||||
SafeBrowsingEnabled bool
|
||||
ParentalEnabled bool
|
||||
UseOwnBlockedServices bool
|
||||
IgnoreQueryLog bool
|
||||
IgnoreStatistics bool
|
||||
}
|
||||
|
||||
// SetTags sets the tags if they are known, otherwise logs an unknown tag.
|
||||
func (c *Persistent) SetTags(tags []string, known *stringutil.Set) {
|
||||
for _, t := range tags {
|
||||
if !known.Has(t) {
|
||||
log.Info("skipping unknown tag %q", t)
|
||||
|
||||
continue
|
||||
}
|
||||
|
||||
c.Tags = append(c.Tags, t)
|
||||
}
|
||||
|
||||
slices.Sort(c.Tags)
|
||||
}
|
||||
|
||||
// SetIDs parses a list of strings into typed fields and returns an error if
|
||||
// there is one.
|
||||
func (c *Persistent) SetIDs(ids []string) (err error) {
|
||||
for _, id := range ids {
|
||||
err = c.setID(id)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
slices.SortFunc(c.IPs, netip.Addr.Compare)
|
||||
|
||||
// TODO(s.chzhen): Use netip.PrefixCompare in Go 1.23.
|
||||
slices.SortFunc(c.Subnets, subnetCompare)
|
||||
slices.SortFunc(c.MACs, slices.Compare[net.HardwareAddr])
|
||||
slices.Sort(c.ClientIDs)
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// subnetCompare is a comparison function for the two subnets. It returns -1 if
|
||||
// x sorts before y, 1 if x sorts after y, and 0 if their relative sorting
|
||||
// position is the same.
|
||||
func subnetCompare(x, y netip.Prefix) (cmp int) {
|
||||
if x == y {
|
||||
return 0
|
||||
}
|
||||
|
||||
xAddr, xBits := x.Addr(), x.Bits()
|
||||
yAddr, yBits := y.Addr(), y.Bits()
|
||||
if xBits == yBits {
|
||||
return xAddr.Compare(yAddr)
|
||||
}
|
||||
|
||||
if xBits > yBits {
|
||||
return -1
|
||||
} else {
|
||||
return 1
|
||||
}
|
||||
}
|
||||
|
||||
// setID parses id into typed field if there is no error.
|
||||
func (c *Persistent) setID(id string) (err error) {
|
||||
if id == "" {
|
||||
return errors.Error("clientid is empty")
|
||||
}
|
||||
|
||||
var ip netip.Addr
|
||||
if ip, err = netip.ParseAddr(id); err == nil {
|
||||
c.IPs = append(c.IPs, ip)
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
var subnet netip.Prefix
|
||||
if subnet, err = netip.ParsePrefix(id); err == nil {
|
||||
c.Subnets = append(c.Subnets, subnet)
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
var mac net.HardwareAddr
|
||||
if mac, err = net.ParseMAC(id); err == nil {
|
||||
c.MACs = append(c.MACs, mac)
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
err = ValidateClientID(id)
|
||||
if err != nil {
|
||||
// Don't wrap the error, because it's informative enough as is.
|
||||
return err
|
||||
}
|
||||
|
||||
c.ClientIDs = append(c.ClientIDs, strings.ToLower(id))
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// ValidateClientID returns an error if id is not a valid ClientID.
|
||||
//
|
||||
// TODO(s.chzhen): It's an exact copy of the [dnsforward.ValidateClientID] to
|
||||
// avoid the import cycle. Remove it.
|
||||
func ValidateClientID(id string) (err error) {
|
||||
err = netutil.ValidateHostnameLabel(id)
|
||||
if err != nil {
|
||||
// Replace the domain name label wrapper with our own.
|
||||
return fmt.Errorf("invalid clientid %q: %w", id, errors.Unwrap(err))
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// IDs returns a list of client IDs containing at least one element.
|
||||
func (c *Persistent) IDs() (ids []string) {
|
||||
ids = make([]string, 0, c.IDsLen())
|
||||
|
||||
for _, ip := range c.IPs {
|
||||
ids = append(ids, ip.String())
|
||||
}
|
||||
|
||||
for _, subnet := range c.Subnets {
|
||||
ids = append(ids, subnet.String())
|
||||
}
|
||||
|
||||
for _, mac := range c.MACs {
|
||||
ids = append(ids, mac.String())
|
||||
}
|
||||
|
||||
return append(ids, c.ClientIDs...)
|
||||
}
|
||||
|
||||
// IDsLen returns a length of client ids.
|
||||
func (c *Persistent) IDsLen() (n int) {
|
||||
return len(c.IPs) + len(c.Subnets) + len(c.MACs) + len(c.ClientIDs)
|
||||
}
|
||||
|
||||
// EqualIDs returns true if the ids of the current and previous clients are the
|
||||
// same.
|
||||
func (c *Persistent) EqualIDs(prev *Persistent) (equal bool) {
|
||||
return slices.Equal(c.IPs, prev.IPs) &&
|
||||
slices.Equal(c.Subnets, prev.Subnets) &&
|
||||
slices.EqualFunc(c.MACs, prev.MACs, slices.Equal[net.HardwareAddr]) &&
|
||||
slices.Equal(c.ClientIDs, prev.ClientIDs)
|
||||
}
|
||||
|
||||
// ShallowClone returns a deep copy of the client, except upstreamConfig,
|
||||
// safeSearchConf, SafeSearch fields, because it's difficult to copy them.
|
||||
func (c *Persistent) ShallowClone() (clone *Persistent) {
|
||||
clone = &Persistent{}
|
||||
*clone = *c
|
||||
|
||||
clone.BlockedServices = c.BlockedServices.Clone()
|
||||
clone.Tags = slices.Clone(c.Tags)
|
||||
clone.Upstreams = slices.Clone(c.Upstreams)
|
||||
|
||||
clone.IPs = slices.Clone(c.IPs)
|
||||
clone.Subnets = slices.Clone(c.Subnets)
|
||||
clone.MACs = slices.Clone(c.MACs)
|
||||
clone.ClientIDs = slices.Clone(c.ClientIDs)
|
||||
|
||||
return clone
|
||||
}
|
||||
|
||||
// CloseUpstreams closes the client-specific upstream config of c if any.
|
||||
func (c *Persistent) CloseUpstreams() (err error) {
|
||||
if c.UpstreamConfig != nil {
|
||||
if err = c.UpstreamConfig.Close(); err != nil {
|
||||
return fmt.Errorf("closing upstreams of client %q: %w", c.Name, err)
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// SetSafeSearch initializes and sets the safe search filter for this client.
|
||||
func (c *Persistent) SetSafeSearch(
|
||||
conf filtering.SafeSearchConfig,
|
||||
cacheSize uint,
|
||||
cacheTTL time.Duration,
|
||||
) (err error) {
|
||||
ss, err := safesearch.NewDefault(conf, fmt.Sprintf("client %q", c.Name), cacheSize, cacheTTL)
|
||||
if err != nil {
|
||||
// Don't wrap the error, because it's informative enough as is.
|
||||
return err
|
||||
}
|
||||
|
||||
c.SafeSearch = ss
|
||||
|
||||
return nil
|
||||
}
|
||||
124
internal/client/persistent_internal_test.go
Normal file
124
internal/client/persistent_internal_test.go
Normal file
@@ -0,0 +1,124 @@
|
||||
package client
|
||||
|
||||
import (
|
||||
"testing"
|
||||
|
||||
"github.com/stretchr/testify/assert"
|
||||
"github.com/stretchr/testify/require"
|
||||
)
|
||||
|
||||
func TestPersistentClient_EqualIDs(t *testing.T) {
|
||||
const (
|
||||
ip = "0.0.0.0"
|
||||
ip1 = "1.1.1.1"
|
||||
ip2 = "2.2.2.2"
|
||||
|
||||
cidr = "0.0.0.0/0"
|
||||
cidr1 = "1.1.1.1/11"
|
||||
cidr2 = "2.2.2.2/22"
|
||||
|
||||
mac = "00-00-00-00-00-00"
|
||||
mac1 = "11-11-11-11-11-11"
|
||||
mac2 = "22-22-22-22-22-22"
|
||||
|
||||
cli = "client0"
|
||||
cli1 = "client1"
|
||||
cli2 = "client2"
|
||||
)
|
||||
|
||||
testCases := []struct {
|
||||
want assert.BoolAssertionFunc
|
||||
name string
|
||||
ids []string
|
||||
prevIDs []string
|
||||
}{{
|
||||
name: "single_ip",
|
||||
ids: []string{ip1},
|
||||
prevIDs: []string{ip1},
|
||||
want: assert.True,
|
||||
}, {
|
||||
name: "single_ip_not_equal",
|
||||
ids: []string{ip1},
|
||||
prevIDs: []string{ip2},
|
||||
want: assert.False,
|
||||
}, {
|
||||
name: "ips_not_equal",
|
||||
ids: []string{ip1, ip2},
|
||||
prevIDs: []string{ip1, ip},
|
||||
want: assert.False,
|
||||
}, {
|
||||
name: "ips_mixed_equal",
|
||||
ids: []string{ip1, ip2},
|
||||
prevIDs: []string{ip2, ip1},
|
||||
want: assert.True,
|
||||
}, {
|
||||
name: "single_subnet",
|
||||
ids: []string{cidr1},
|
||||
prevIDs: []string{cidr1},
|
||||
want: assert.True,
|
||||
}, {
|
||||
name: "subnets_not_equal",
|
||||
ids: []string{ip1, ip2, cidr1, cidr2},
|
||||
prevIDs: []string{ip1, ip2, cidr1, cidr},
|
||||
want: assert.False,
|
||||
}, {
|
||||
name: "subnets_mixed_equal",
|
||||
ids: []string{ip1, ip2, cidr1, cidr2},
|
||||
prevIDs: []string{cidr2, cidr1, ip2, ip1},
|
||||
want: assert.True,
|
||||
}, {
|
||||
name: "single_mac",
|
||||
ids: []string{mac1},
|
||||
prevIDs: []string{mac1},
|
||||
want: assert.True,
|
||||
}, {
|
||||
name: "single_mac_not_equal",
|
||||
ids: []string{mac1},
|
||||
prevIDs: []string{mac2},
|
||||
want: assert.False,
|
||||
}, {
|
||||
name: "macs_not_equal",
|
||||
ids: []string{ip1, ip2, cidr1, cidr2, mac1, mac2},
|
||||
prevIDs: []string{ip1, ip2, cidr1, cidr2, mac1, mac},
|
||||
want: assert.False,
|
||||
}, {
|
||||
name: "macs_mixed_equal",
|
||||
ids: []string{ip1, ip2, cidr1, cidr2, mac1, mac2},
|
||||
prevIDs: []string{mac2, mac1, cidr2, cidr1, ip2, ip1},
|
||||
want: assert.True,
|
||||
}, {
|
||||
name: "single_client_id",
|
||||
ids: []string{cli1},
|
||||
prevIDs: []string{cli1},
|
||||
want: assert.True,
|
||||
}, {
|
||||
name: "single_client_id_not_equal",
|
||||
ids: []string{cli1},
|
||||
prevIDs: []string{cli2},
|
||||
want: assert.False,
|
||||
}, {
|
||||
name: "client_ids_not_equal",
|
||||
ids: []string{ip1, ip2, cidr1, cidr2, mac1, mac2, cli1, cli2},
|
||||
prevIDs: []string{ip1, ip2, cidr1, cidr2, mac1, mac2, cli1, cli},
|
||||
want: assert.False,
|
||||
}, {
|
||||
name: "client_ids_mixed_equal",
|
||||
ids: []string{ip1, ip2, cidr1, cidr2, mac1, mac2, cli1, cli2},
|
||||
prevIDs: []string{cli2, cli1, mac2, mac1, cidr2, cidr1, ip2, ip1},
|
||||
want: assert.True,
|
||||
}}
|
||||
|
||||
for _, tc := range testCases {
|
||||
t.Run(tc.name, func(t *testing.T) {
|
||||
c := &Persistent{}
|
||||
err := c.SetIDs(tc.ids)
|
||||
require.NoError(t, err)
|
||||
|
||||
prev := &Persistent{}
|
||||
err = prev.SetIDs(tc.prevIDs)
|
||||
require.NoError(t, err)
|
||||
|
||||
tc.want(t, c.EqualIDs(prev))
|
||||
})
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user