Adding a second test when a delayed test fails

https://www.google.com/generate_204

V2rayNG/app/src/main/kotlin/com/v2ray/ang/AppConfig.kt

@@ -100,6 +100,7 @@ object AppConfig {
     const val GeoUrl = "https://github.com/Loyalsoldier/v2ray-rules-dat/releases/latest/download/"
     const val TgChannelUrl = "https://t.me/github_2dust"
     const val DelayTestUrl = "https://www.gstatic.com/generate_204"
+    const val DelayTestUrl2 = "https://www.google.com/generate_204"
 
     const val DNS_PROXY = "1.1.1.1"
     const val DNS_DIRECT = "223.5.5.5"

V2rayNG/app/src/main/kotlin/com/v2ray/ang/service/V2RayServiceManager.kt

@@ -248,6 +248,14 @@ object V2RayServiceManager {
                     Log.d(ANG_PACKAGE, "measureV2rayDelay: $e")
                     errstr = e.message?.substringAfter("\":") ?: "empty message"
                 }
+                if (time == -1L) {
+                    try {
+                        time = v2rayPoint.measureDelay(Utils.getDelayTestUrl(true))
+                    } catch (e: Exception) {
+                        Log.d(ANG_PACKAGE, "measureV2rayDelay: $e")
+                        errstr = e.message?.substringAfter("\":") ?: "empty message"
+                    }
+                }
             }
             val result = if (time == -1L) {
                 service.getString(R.string.connection_test_error, errstr)

V2rayNG/app/src/main/kotlin/com/v2ray/ang/util/Utils.kt

@@ -445,5 +445,14 @@ object Utils {
         val url = settingsStorage.decodeString(AppConfig.PREF_DELAY_TEST_URL)
         return if (url.isNullOrEmpty()) AppConfig.DelayTestUrl else url
     }
+
+    fun getDelayTestUrl(second: Boolean = false): String {
+        return if (second) {
+            AppConfig.DelayTestUrl2
+        } else {
+            val url = settingsStorage.decodeString(AppConfig.PREF_DELAY_TEST_URL)
+            if (url.isNullOrEmpty()) AppConfig.DelayTestUrl else url
+        }
+    }
 }