platform: modularize api/gui, add docs-tests-web foundation, and refresh root config

selective-vpn-api/app/dns_settings_state_smartdns.go

@@ -0,0 +1,90 @@
+package app
+
+import (
+	"os"
+	"strings"
+
+	dnscfgpkg "selective-vpn-api/app/dnscfg"
+)
+
+// ---------------------------------------------------------------------
+// EN: `smartDNSAddr` contains core logic for smart d n s addr.
+// RU: `smartDNSAddr` - содержит основную логику для smart d n s addr.
+// ---------------------------------------------------------------------
+func smartDNSAddr() string {
+	return loadDNSMode().SmartDNSAddr
+}
+
+// ---------------------------------------------------------------------
+// EN: `smartDNSForced` contains core logic for smart d n s forced.
+// RU: `smartDNSForced` - содержит основную логику для smart d n s forced.
+// ---------------------------------------------------------------------
+func smartDNSForced() bool {
+	return dnscfgpkg.SmartDNSForced(os.Getenv(smartDNSForceEnv))
+}
+
+// ---------------------------------------------------------------------
+// EN: `smartdnsUnitState` contains core logic for smartdns unit state.
+// RU: `smartdnsUnitState` - содержит основную логику для smartdns unit state.
+// ---------------------------------------------------------------------
+func smartdnsUnitState() string {
+	return dnscfgpkg.UnitState(runCommand, "smartdns-local.service")
+}
+
+// ---------------------------------------------------------------------
+// EN: `runSmartdnsUnitAction` runs the workflow for smartdns unit action.
+// RU: `runSmartdnsUnitAction` - запускает рабочий процесс для smartdns unit action.
+// ---------------------------------------------------------------------
+func runSmartdnsUnitAction(action string) cmdResult {
+	res := dnscfgpkg.RunUnitAction(runCommand, "smartdns-local.service", action)
+	msg := res.Message
+	if res.OK {
+		msg = "smartdns " + strings.TrimSpace(action) + " done"
+	}
+	return cmdResult{
+		OK:       res.OK,
+		ExitCode: res.ExitCode,
+		Stdout:   res.Stdout,
+		Stderr:   res.Stderr,
+		Message:  msg,
+	}
+}
+
+// ---------------------------------------------------------------------
+// EN: `resolveDefaultSmartDNSAddr` resolves default smart d n s addr into concrete values.
+// RU: `resolveDefaultSmartDNSAddr` - резолвит default smart d n s addr в конкретные значения.
+// ---------------------------------------------------------------------
+func resolveDefaultSmartDNSAddr() string {
+	return dnscfgpkg.ResolveDefaultSmartDNSAddr(
+		os.Getenv(smartDNSAddrEnv),
+		[]string{
+			"/opt/stack/adguardapp/smartdns.conf",
+			"/etc/selective-vpn/smartdns.conf",
+		},
+		smartDNSDefaultAddr,
+	)
+}
+
+// ---------------------------------------------------------------------
+// EN: `smartDNSAddrFromConfig` loads smart d n s addr from config.
+// RU: `smartDNSAddrFromConfig` - загружает smart d n s addr из конфига.
+// ---------------------------------------------------------------------
+func smartDNSAddrFromConfig(path string) string {
+	return dnscfgpkg.SmartDNSAddrFromConfig(path)
+}
+
+// ---------------------------------------------------------------------
+// EN: `normalizeDNSUpstream` parses dns upstream and returns normalized values.
+// RU: `normalizeDNSUpstream` - парсит dns upstream и возвращает нормализованные значения.
+// ---------------------------------------------------------------------
+func normalizeDNSUpstream(raw string, defaultPort string) string {
+	return dnscfgpkg.NormalizeDNSUpstream(raw, defaultPort)
+}
+
+// ---------------------------------------------------------------------
+// EN: `normalizeSmartDNSAddr` parses smart d n s addr and returns normalized values.
+// RU: `normalizeSmartDNSAddr` - парсит smart d n s addr и возвращает нормализованные значения.
+// ---------------------------------------------------------------------
+func normalizeSmartDNSAddr(raw string) string {
+	return dnscfgpkg.NormalizeSmartDNSAddr(raw)
+}