Pull request 2111: 6545-schema-version

Updates #6545.

Squashed commit of the following:

commit b1969128a99ff21c97feb4e7805b4b8133d7122f
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Fri Dec 15 20:04:37 2023 +0300

    home: fix import

commit 872ccea1491a8da76cc24db79247438d0ce4d256
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Fri Dec 15 20:01:15 2023 +0300

    all: output schema version

internal/configmigrate/v23.go

@@ -0,0 +1,59 @@
+package configmigrate
+
+import (
+	"fmt"
+	"net/netip"
+	"time"
+
+	"github.com/AdguardTeam/golibs/timeutil"
+)
+
+// migrateTo23 performs the following changes:
+//
+//	# BEFORE:
+//	'schema_version': 22
+//	'bind_host': '1.2.3.4'
+//	'bind_port': 8080
+//	'web_session_ttl': 720
+//	# …
+//
+//	# AFTER:
+//	'schema_version': 23
+//	'http':
+//	  'address': '1.2.3.4:8080'
+//	  'session_ttl': '720h'
+//	# …
+func migrateTo23(diskConf yobj) (err error) {
+	diskConf["schema_version"] = 23
+
+	bindHost, ok, err := fieldVal[string](diskConf, "bind_host")
+	if !ok {
+		return err
+	}
+
+	bindHostAddr, err := netip.ParseAddr(bindHost)
+	if err != nil {
+		return fmt.Errorf("invalid bind_host value: %s", bindHost)
+	}
+
+	bindPort, _, err := fieldVal[int](diskConf, "bind_port")
+	if err != nil {
+		return err
+	}
+
+	sessionTTL, _, err := fieldVal[int](diskConf, "web_session_ttl")
+	if err != nil {
+		return err
+	}
+
+	diskConf["http"] = yobj{
+		"address":     netip.AddrPortFrom(bindHostAddr, uint16(bindPort)).String(),
+		"session_ttl": timeutil.Duration{Duration: time.Duration(sessionTTL) * time.Hour}.String(),
+	}
+
+	delete(diskConf, "bind_host")
+	delete(diskConf, "bind_port")
+	delete(diskConf, "web_session_ttl")
+
+	return nil
+}