Update Constant.java

app/src/main/java/com/fongmi/android/tv/Constant.java

@@ -1,16 +1,44 @@
 package com.fongmi.android.tv;
 
+import java.io.IOException;
+import java.util.concurrent.TimeUnit;
+
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+
 public class Constant {
 
-    public static final String PROXY = "https://ghproxy.com/";
-    public static final String REPO = "https://raw.githubusercontent.com/FongMi/TV/";
+    public static final String A = "https://raw.githubusercontent.com/";
+    public static final String B = "https://raw.githubusercontents.com/";
+    public static final String C = "https://ghproxy.com/";
+    public static final String D = "https://raw.iqiq.io/";
+    public static final String E = "https://raw.fastgit.org/";
+    public static final String REPO = "FongMi/TV/";
     public static final String RELEASE = "release";
+    private static final int TIME = 2;
+
+    private static String getProxy() {
+        if (isOk(A)) return A + REPO;
+        if (isOk(B)) return B + REPO;
+        if (isOk(C)) return C + A + REPO;
+        if (isOk(D)) return D + REPO;
+        if (isOk(E)) return E + REPO;
+        return "";
+    }
+
+    private static boolean isOk(String url) {
+        try {
+            return new OkHttpClient.Builder().connectTimeout(TIME, TimeUnit.SECONDS).build().newCall(new Request.Builder().url(url).build()).execute().code() == 200;
+        } catch (IOException e) {
+            return false;
+        }
+    }
 
     public static String getReleasePath(String path) {
-        return PROXY + REPO + RELEASE + path;
+        return getProxy() + RELEASE + path;
     }
 
     public static String getBranchPath(String branch, String path) {
-        return PROXY + REPO + branch + path;
+        return getProxy() + branch + path;
     }
 }