dns fix for xray(ios)

XrayConfig.swift

@@ -0,0 +1,7 @@
+import Foundation
+
+struct XrayConfig: Decodable {
+    let dns1: String?
+    let dns2: String?
+    let config: String
+}

client/platforms/ios/PacketTunnelProvider+Xray.swift

@@ -4,6 +4,7 @@ import WireGuardKitGo
 
 enum XrayErrors: Error {
     case noXrayConfig
+    case xrayConfigIsWrong
     case cantSaveXrayConfig
     case cantParseListenAndPort
     case cantSaveHevSocksConfig
@@ -26,7 +27,7 @@ extension PacketTunnelProvider {
         // Xray configuration
         guard let protocolConfiguration = self.protocolConfiguration as? NETunnelProviderProtocol,
               let providerConfiguration = protocolConfiguration.providerConfiguration,
-              let xrayConfigData = providerConfiguration[Constants.xrayConfigKey] as? Data else {
+              let configData = providerConfiguration[Constants.xrayConfigKey] as? Data else {
             xrayLog(.error, message: "Can't get xray configuration")
             completionHandler(XrayErrors.noXrayConfig)
             return
@@ -57,12 +58,29 @@ extension PacketTunnelProvider {
             return settings
         }()
 
-        let dns = ["8.8.4.4","1.1.1.1"]
-        settings.dnsSettings = NEDNSSettings(servers: dns)
-
         do {
-            let port = 10808
+            let xrayConfig = try JSONDecoder().decode(XrayConfig.self,
-            let address = "::1"
+                                                      from: configData)
+
+            var dnsArray = [String]()
+            if let dns1 = xrayConfig.dns1 {
+                dnsArray.append(dns1)
+            }
+            if let dns2 = xrayConfig.dns2 {
+                dnsArray.append(dns2)
+            }
+
+            settings.dnsSettings = !dnsArray.isEmpty
+            ? NEDNSSettings(servers: dnsArray)
+            : NEDNSSettings(servers: ["1.1.1.1"])
+
+            let xrayConfigData = xrayConfig.config.data(using: .utf8)
+
+            guard let xrayConfigData else {
+                xrayLog(.error, message: "Can't encode config to data")
+                completionHandler(XrayErrors.xrayConfigIsWrong)
+                return
+            }
 
             let jsonDict = try JSONSerialization.jsonObject(with: xrayConfigData,
                                                             options: []) as? [String: Any]
@@ -73,6 +91,9 @@ extension PacketTunnelProvider {
                 return
             }
 
+            let port = 10808
+            let address = "::1"
+
             if var inboundsArray = jsonDict["inbounds"] as? [[String: Any]], !inboundsArray.isEmpty {
                 inboundsArray[0]["port"] = port
                 inboundsArray[0]["listen"] = address

client/platforms/ios/ios_controller.mm

@@ -511,18 +511,36 @@ bool IosController::setupXray()
 {
     QJsonObject config = m_rawConfig[ProtocolProps::key_proto_config_data(amnezia::Proto::Xray)].toObject();
     QJsonDocument xrayConfigDoc(config);
+
     QString xrayConfigStr(xrayConfigDoc.toJson(QJsonDocument::Compact));
 
-    return startXray(xrayConfigStr);
+    QJsonObject finalConfig;
+    finalConfig.insert(config_key::dns1, m_rawConfig[config_key::dns1].toString());
+    finalConfig.insert(config_key::dns2, m_rawConfig[config_key::dns2].toString());
+    finalConfig.insert(config_key::config, xrayConfigStr);
+
+    QJsonDocument finalConfigDoc(finalConfig);
+    QString finalConfigStr(finalConfigDoc.toJson(QJsonDocument::Compact));
+
+    return startXray(finalConfigStr);
 }
 
 bool IosController::setupSSXray()
 {
     QJsonObject config = m_rawConfig[ProtocolProps::key_proto_config_data(amnezia::Proto::SSXray)].toObject();
     QJsonDocument ssXrayConfigDoc(config);
+
     QString ssXrayConfigStr(ssXrayConfigDoc.toJson(QJsonDocument::Compact));
 
-    return startXray(ssXrayConfigStr);
+    QJsonObject finalConfig;
+    finalConfig.insert(config_key::dns1, m_rawConfig[config_key::dns1]);
+    finalConfig.insert(config_key::dns2, m_rawConfig[config_key::dns2]);
+    finalConfig.insert(config_key::config, ssXrayConfigStr);
+
+    QJsonDocument finalConfigDoc(finalConfig);
+    QString finalConfigStr(finalConfigDoc.toJson(QJsonDocument::Compact));
+
+    return startXray(finalConfigStr);
 }
 
 bool IosController::setupAwg()