Add mirrors CDN url for update check and reduce https request count

Author: eritpchy

app/src/main/java/com/surcumference/fingerprint/Constant.java

@@ -25,7 +25,10 @@ public class Constant {
     public static final String HELP_URL_FAQ = "https://gitee.com/eritpchy/FingerprintPay/blob/main/README.md#%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98";
     public static final String HELP_URL_LICENSE = "https://gitee.com/eritpchy/FingerprintPay/blob/main/license.md";
     public static final String PROJECT_URL = "https://github.com/eritpchy/FingerprintPay";
-    public static final String UPDATE_URL_GITHUB = "https://api.github.com/repos/eritpchy/FingerprintPay/releases/latest";
+    public static final String[] UPDATE_URLS = new String[] {
+        "https://api.github.com/repos/eritpchy/FingerprintPay/releases/latest",
+        "https://accelerate.xdow.net/api/repos/eritpchy/FingerprintPay/releases/latest",
+    };
     //url/version/name
     public static final String UPDATE_URL_MIRROR_FILE = "https://file.xdow.net/d/download/fingerprintpay/%s/%s";
     public static final String DONATE_ID_ALIPAY = "https://qr.alipay.com/FKX012222QIU52C6LATAB7";

app/src/main/java/com/surcumference/fingerprint/network/interceptor/UrlFallbackInterceptor.java

@@ -0,0 +1,77 @@
+package com.surcumference.fingerprint.network.interceptor;
+
+import com.surcumference.fingerprint.util.log.L;
+import java.io.IOException;
+import java.util.Arrays;
+import java.util.List;
+import okhttp3.*;
+
+/**
+ * An OkHttp interceptor that tries fallback URLs when the original request fails.
+ * It will try each URL in sequence until one succeeds or all fail.
+ */
+public class UrlFallbackInterceptor implements Interceptor {
+    private final List<String> fallbackUrls;
+
+    /**
+     * Creates a new UrlFallbackInterceptor with the specified fallback URLs.
+     * 
+     * @param fallbackUrls The URLs to try if the original request fails
+     */
+    public UrlFallbackInterceptor(String... fallbackUrls) {
+        this.fallbackUrls = Arrays.asList(fallbackUrls);
+    }
+
+    @Override
+    public Response intercept(Chain chain) throws IOException {
+        Request originalRequest = chain.request();
+        IOException lastException = null;
+        
+        // Try the original request
+        try {
+            Response response = chain.proceed(originalRequest);
+            if (response.isSuccessful()) {
+                return response;
+            }
+            String body = response.body().string();
+            response.close();
+            throw new IOException("Error: request fail code: " + response.code() + " body: " + body);
+        } catch (IOException e) {
+            // Save the exception
+            lastException = e;
+            L.e("Error: request fail on url: " + originalRequest.url().toString() + " try next..", lastException);
+        }
+        
+        // Try each fallback URL
+        for (String fallbackUrl : fallbackUrls) {
+            HttpUrl newUrl = HttpUrl.parse(fallbackUrl);
+            if (newUrl == null) continue;
+            
+            Request newRequest = originalRequest.newBuilder()
+                    .url(newUrl)
+                    .build();
+            
+            try {
+                Response response = chain.proceed(newRequest);
+                if (response.isSuccessful()) {
+                    return response;
+                }
+                String body = response.body().string();
+                response.close();
+                throw new IOException("Error: request fail code: " + response.code() + " body: " + body);
+            } catch (IOException e) {
+                // Update the last exception
+                lastException = e;
+                L.e("Error: request fail on fallback url: " + fallbackUrl + " try next..", e);
+            }
+        }
+        
+        // All URLs failed, throw the last exception
+        if (lastException != null) {
+            throw lastException;
+        } else {
+            // In case no exception was caught but all responses were unsuccessful
+            throw new IOException("All URL requests failed without specific exceptions");
+        }
+    }
+}

app/src/main/java/com/surcumference/fingerprint/network/update/BaseUpdateChecker.java

@@ -4,6 +4,7 @@
 import com.surcumference.fingerprint.network.inf.IUpdateCheck;
 import com.surcumference.fingerprint.network.inf.UpdateResultListener;
 import com.surcumference.fingerprint.util.Task;
+import com.surcumference.fingerprint.util.log.L;
 
 /**
  * Created by Jason on 2017/9/9.
@@ -30,6 +31,7 @@ public void onNoUpdate() {
 
     @Override
     public void onNetErr(Exception exception) {
+        L.e(exception);
         Task.onMain(() -> {
             UpdateResultListener listener = mResultListener;
             if (listener == null) {

app/src/main/java/com/surcumference/fingerprint/network/update/UpdateFactory.java

@@ -66,7 +66,7 @@ public static void doUpdateCheck(final Context context, final boolean quite, fin
             }});
             File targetFile = FileUtils.getSharableFile(context, fileName);
             FileUtils.delete(targetFile);
-            new GithubUpdateChecker(BuildConfig.VERSION_NAME, Constant.UPDATE_URL_GITHUB,
+            new GithubUpdateChecker(BuildConfig.VERSION_NAME, Constant.UPDATE_URLS,
                     new UpdateResultListener() {
                 @Override
                 public void onNoUpdate() {

app/src/main/java/com/surcumference/fingerprint/network/update/github/GithubUpdateChecker.java

@@ -8,6 +8,7 @@
 import com.surcumference.fingerprint.R;
 import com.surcumference.fingerprint.bean.UpdateInfo;
 import com.surcumference.fingerprint.network.inf.UpdateResultListener;
+import com.surcumference.fingerprint.network.interceptor.UrlFallbackInterceptor;
 import com.surcumference.fingerprint.network.update.BaseUpdateChecker;
 import com.surcumference.fingerprint.network.update.github.bean.GithubAssetsInfo;
 import com.surcumference.fingerprint.network.update.github.bean.GithubLatestInfo;
@@ -16,28 +17,40 @@
 import com.surcumference.fingerprint.util.log.L;
 
 import java.io.IOException;
+import java.util.Arrays;
+import java.util.Collections;
 import java.util.Date;
 
 import okhttp3.Call;
 import okhttp3.Callback;
 import okhttp3.OkHttpClient;
+import okhttp3.Protocol;
 import okhttp3.Request;
 import okhttp3.Response;
 
 /**
  * Created by Jason on 2017/9/9.
  */
-
 public class GithubUpdateChecker extends BaseUpdateChecker {
 
-    public static OkHttpClient sHttpClient = new OkHttpClient();
+    public final OkHttpClient mHttpClient;
     private final String mLocalVersion;
-    private final String mUpdateUrl;
+    private final String[] mUpdateUrls;
 
-    public GithubUpdateChecker(String localVersion, String updateUrl, UpdateResultListener listener) {
+    public GithubUpdateChecker(String localVersion, String[] updateUrls, UpdateResultListener listener) {
         super(listener);
+        if (updateUrls.length == 0) {
+            throw new IllegalArgumentException("Error: expected update urls, got zero");
+        }
         this.mLocalVersion = localVersion;
-        this.mUpdateUrl = updateUrl;
+        this.mUpdateUrls = updateUrls;
+        OkHttpClient.Builder builder = new OkHttpClient.Builder()
+        .retryOnConnectionFailure(true);
+        if (updateUrls.length > 1) {
+            String[] fallbackUrls = Arrays.copyOfRange(updateUrls, 1, updateUrls.length);
+            builder.addInterceptor(new UrlFallbackInterceptor(fallbackUrls));
+        }
+        this.mHttpClient = builder.build();
     }
 
     @Override
@@ -57,7 +70,7 @@ public void onResponse(Call call, Response response) throws IOException {
                     try {
                         GithubLatestInfo info = new Gson().fromJson(replay, GithubLatestInfo.class);
                         if (!info.isDataComplete()) {
-                            onNetErr(new IllegalArgumentException("data not complete!"));
+                            onNetErr(new IllegalArgumentException("data not complete!, data: " + replay));
                             return;
                         }
                         if (BuildConfig.DEBUG || StringUtils.isAppNewVersion(mLocalVersion, info.version)) {
@@ -81,9 +94,9 @@ public void onResponse(Call call, Response response) throws IOException {
         };
 
         Request request = new Request.Builder()
-                .url(this.mUpdateUrl)
+                .url(this.mUpdateUrls[0])
                 .build();
-        sHttpClient.newCall(request).enqueue(callback);
+        mHttpClient.newCall(request).enqueue(callback);
     }
 
     private String appendUpdateExtInfo(String content, Date date, String pageUrl) {