Separate out latest version check logic per flavor

app/src/fdroid/java/awais/instagrabber/utils/UpdateChecker.java

@@ -0,0 +1,64 @@
+package awais.instagrabber.utils;
+
+import android.util.Log;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+
+import org.json.JSONObject;
+
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+public class UpdateChecker {
+    private static final Object LOCK = new Object();
+    private static final String TAG = UpdateChecker.class.getSimpleName();
+
+    private static UpdateChecker instance;
+
+    public static UpdateChecker getInstance() {
+        if (instance == null) {
+            synchronized (LOCK) {
+                if (instance == null) {
+                    instance = new UpdateChecker();
+                }
+            }
+        }
+        return instance;
+    }
+
+    /**
+     * Needs to be called asynchronously
+     *
+     * @return the latest version from f-droid
+     */
+    @Nullable
+    public String getLatestVersion() {
+        HttpURLConnection conn = null;
+        try {
+            conn = (HttpURLConnection) new URL("https://f-droid.org/api/v1/packages/me.austinhuang.instagrabber").openConnection();
+            conn.setUseCaches(false);
+            conn.setRequestProperty("User-Agent", "https://Barinsta.AustinHuang.me / mailto:Barinsta@AustinHuang.me");
+            conn.connect();
+            final int responseCode = conn.getResponseCode();
+            if (responseCode == HttpURLConnection.HTTP_OK) {
+                final JSONObject data = new JSONObject(NetworkUtils.readFromConnection(conn));
+                return "v" + data.getJSONArray("packages").getJSONObject(0).getString("versionName");
+                // if (BuildConfig.VERSION_CODE < data.getInt("suggestedVersionCode")) {
+                // }
+            }
+        } catch (final Exception e) {
+            Log.e(TAG, "", e);
+        } finally {
+            if (conn != null) {
+                conn.disconnect();
+            }
+        }
+        return null;
+    }
+
+    public void onDownload(@NonNull final AppCompatActivity context) {
+        Utils.openURL(context, "https://f-droid.org/packages/me.austinhuang.instagrabber/");
+    }
+}

app/src/github/java/awais/instagrabber/utils/UpdateChecker.java

@@ -0,0 +1,61 @@
+package awais.instagrabber.utils;
+
+import android.content.Context;
+import android.util.Log;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import java.net.HttpURLConnection;
+import java.net.URL;
+
+public class UpdateChecker {
+    private static final Object LOCK = new Object();
+    private static final String TAG = UpdateChecker.class.getSimpleName();
+
+    private static UpdateChecker instance;
+
+    public static UpdateChecker getInstance() {
+        if (instance == null) {
+            synchronized (LOCK) {
+                if (instance == null) {
+                    instance = new UpdateChecker();
+                }
+            }
+        }
+        return instance;
+    }
+
+    /**
+     * Needs to be called asynchronously
+     *
+     * @return the latest version from Github
+     */
+    @Nullable
+    public String getLatestVersion() {
+        HttpURLConnection conn = null;
+        try {
+            conn = (HttpURLConnection) new URL("https://github.com/austinhuang0131/barinsta/releases/latest").openConnection();
+            conn.setInstanceFollowRedirects(false);
+            conn.setUseCaches(false);
+            conn.setRequestProperty("User-Agent", "https://Barinsta.AustinHuang.me / mailto:Barinsta@AustinHuang.me");
+            conn.connect();
+            final int responseCode = conn.getResponseCode();
+            if (responseCode == HttpURLConnection.HTTP_MOVED_TEMP) {
+                return "v" + conn.getHeaderField("Location").split("/v")[1];
+                // return !version.equals(BuildConfig.VERSION_NAME);
+            }
+        } catch (final Exception e) {
+            Log.e(TAG, "", e);
+        } finally {
+            if (conn != null) {
+                conn.disconnect();
+            }
+        }
+        return null;
+    }
+
+    public void onDownload(@NonNull final Context context) {
+        Utils.openURL(context, "https://github.com/austinhuang0131/instagrabber/releases/latest");
+    }
+}

app/src/main/java/awais/instagrabber/fragments/settings/MorePreferencesFragment.java

@@ -193,7 +193,9 @@ public class MorePreferencesFragment extends BasePreferencesFragment {
                                            BuildConfig.VERSION_NAME + " (" + BuildConfig.VERSION_CODE + ")",
                                            -1,
                                            preference -> {
-                                               FlavorTown.updateCheck((AppCompatActivity) requireActivity(), true);
+                                               final AppCompatActivity activity = (AppCompatActivity) getActivity();
+                                               if (activity == null) return true;
+                                               FlavorTown.updateCheck(activity, true);
                                                return true;
                                            }));
         screen.addPreference(getDivider(context));

app/src/main/java/awais/instagrabber/utils/Constants.java

@@ -79,7 +79,6 @@ public final class Constants {
 //    public static final String SIGNATURE_KEY = "9193488027538fd3450b83b7d05286d4ca9599a0f7eeed90d8c85925698a05dc";
     public static final String BREADCRUMB_KEY = "iN4$aGr0m";
     public static final int LOGIN_RESULT_CODE = 5000;
-    public static final String FDROID_SHA1_FINGERPRINT = "C1661EB8FD09F618307E687786D5E5056F65084D";
     public static final String SKIPPED_VERSION = "skipped_version";
     public static final String DEFAULT_TAB = "default_tab";
     public static final String PREF_DARK_THEME = "dark_theme";

app/src/main/java/awais/instagrabber/utils/FlavorTown.java

@@ -1,104 +1,46 @@
 package awais.instagrabber.utils;
 
-import android.annotation.SuppressLint;
-import android.content.ActivityNotFoundException;
 import android.content.Context;
-import android.content.DialogInterface;
-import android.content.Intent;
-import android.content.pm.PackageInfo;
-import android.content.pm.PackageManager;
-import android.content.pm.Signature;
-import android.content.res.Resources;
-import android.net.Uri;
-import android.os.AsyncTask;
-import android.util.Log;
 import android.widget.Toast;
 
 import androidx.annotation.NonNull;
-import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.app.AppCompatActivity;
 
-import java.security.MessageDigest;
-import java.security.NoSuchAlgorithmException;
 import java.util.concurrent.ThreadLocalRandom;
 
-import javax.security.cert.CertificateException;
-import javax.security.cert.X509Certificate;
-
 import awais.instagrabber.BuildConfig;
 import awais.instagrabber.R;
-import awais.instagrabber.databinding.DialogUpdateBinding;
 
 import static awais.instagrabber.utils.Utils.settingsHelper;
 
 public final class FlavorTown {
     private static final String TAG = "FlavorTown";
-    private static final char[] HEX_ARRAY = "0123456789ABCDEF".toCharArray();
+    private static final UpdateChecker UPDATE_CHECKER = UpdateChecker.getInstance();
-    private static AlertDialog dialog;
+
+    private static boolean checking = false;
 
     public static void updateCheck(@NonNull final AppCompatActivity context) {
         updateCheck(context, false);
     }
 
-    @SuppressLint("PackageManagerGetSignatures")
+    public static void updateCheck(@NonNull final AppCompatActivity context,
-    public static void updateCheck(@NonNull final AppCompatActivity context, final boolean force) {
+                                   final boolean force) {
-        boolean isInstalledFromFdroid = false;
+        if (checking) return;
-        final PackageInfo packageInfo;
+        checking = true;
-        try {
+        AppExecutors.getInstance().networkIO().execute(() -> {
-            packageInfo = context.getPackageManager().getPackageInfo(context.getPackageName(), PackageManager.GET_SIGNATURES);
+            final String version = UPDATE_CHECKER.getLatestVersion();
-            for (Signature signature : packageInfo.signatures) {
+            if (version == null) return;
-                final X509Certificate cert = X509Certificate.getInstance(signature.toByteArray());
-                final String fingerprint = bytesToHex(MessageDigest.getInstance("SHA-1").digest(cert.getEncoded()));
-                isInstalledFromFdroid = fingerprint.equals(Constants.FDROID_SHA1_FINGERPRINT);
-                // Log.d(TAG, "fingerprint:" + fingerprint);
-            }
-        } catch (PackageManager.NameNotFoundException | NoSuchAlgorithmException | CertificateException e) {
-            Log.e(TAG, "Error", e);
-        }
-        if (isInstalledFromFdroid) return;
-        final DialogUpdateBinding binding = DialogUpdateBinding.inflate(context.getLayoutInflater(), null, false);
-        binding.skipUpdate.setOnCheckedChangeListener((buttonView, isChecked) -> {
-            if (dialog == null) return;
-            dialog.getButton(DialogInterface.BUTTON_POSITIVE).setEnabled(!isChecked);
-        });
-        Resources res = context.getResources();
-        new UpdateChecker(version -> {
             if (force && version.equals(BuildConfig.VERSION_NAME)) {
                 Toast.makeText(context, "You're already on the latest version", Toast.LENGTH_SHORT).show();
                 return;
             }
-            final String skippedVersion = settingsHelper.getString(Constants.SKIPPED_VERSION);
+            final boolean shouldShowDialog = UpdateCheckCommon.shouldShowUpdateDialog(force, version);
-            final boolean shouldShowDialog = force || (!version.equals(BuildConfig.VERSION_NAME) && !BuildConfig.DEBUG && !skippedVersion
-                    .equals(version));
             if (!shouldShowDialog) return;
-            dialog = new AlertDialog.Builder(context)
+            UpdateCheckCommon.showUpdateDialog(context, version, (dialog, which) -> {
-                    .setTitle(res.getString(R.string.update_available, version))
+                UPDATE_CHECKER.onDownload(context);
-                    .setView(binding.getRoot())
+                dialog.dismiss();
-                    .setNeutralButton(R.string.cancel, (dialog, which) -> {
+            });
-                        if (binding.skipUpdate.isChecked()) {
+        });
-                            settingsHelper.putString(Constants.SKIPPED_VERSION, version);
-                        }
-                        dialog.dismiss();
-                    })
-                    .setPositiveButton(R.string.action_github, (dialog1, which) -> {
-                        try {
-                            context.startActivity(new Intent(Intent.ACTION_VIEW).setData(
-                                    Uri.parse("https://github.com/austinhuang0131/instagrabber/releases/latest")));
-                        } catch (final ActivityNotFoundException e) {
-                            // do nothing
-                        }
-                    })
-                    // if we don't show dialog for fdroid users, is the below required?
-                    .setNegativeButton(R.string.action_fdroid, (dialog, which) -> {
-                        try {
-                            context.startActivity(new Intent(Intent.ACTION_VIEW).setData(
-                                    Uri.parse("https://f-droid.org/packages/me.austinhuang.instagrabber/")));
-                        } catch (final ActivityNotFoundException e) {
-                            // do nothing
-                        }
-                    })
-                    .show();
-        }).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);
     }
 
     public static void changelogCheck(@NonNull final Context context) {
@@ -121,14 +63,4 @@ public final class FlavorTown {
             settingsHelper.putInteger(Constants.PREV_INSTALL_VERSION, BuildConfig.VERSION_CODE);
         }
     }
-
-    public static String bytesToHex(byte[] bytes) {
-        char[] hexChars = new char[bytes.length * 2];
-        for (int j = 0; j < bytes.length; j++) {
-            int v = bytes[j] & 0xFF;
-            hexChars[j * 2] = HEX_ARRAY[v >>> 4];
-            hexChars[j * 2 + 1] = HEX_ARRAY[v & 0x0F];
-        }
-        return new String(hexChars);
-    }
 }

app/src/main/java/awais/instagrabber/utils/UpdateCheckCommon.java

@@ -0,0 +1,39 @@
+package awais.instagrabber.utils;
+
+import android.content.Context;
+import android.content.DialogInterface;
+
+import androidx.annotation.NonNull;
+
+import com.google.android.material.dialog.MaterialAlertDialogBuilder;
+
+import awais.instagrabber.BuildConfig;
+import awais.instagrabber.R;
+
+import static awais.instagrabber.utils.Utils.settingsHelper;
+
+public final class UpdateCheckCommon {
+
+    public static boolean shouldShowUpdateDialog(final boolean force,
+                                                 @NonNull final String version) {
+        final String skippedVersion = settingsHelper.getString(Constants.SKIPPED_VERSION);
+        return force || (!version.equals(BuildConfig.VERSION_NAME) && !BuildConfig.DEBUG && !skippedVersion
+                .equals(version));
+    }
+
+    public static void showUpdateDialog(@NonNull final Context context,
+                                        @NonNull final String version,
+                                        @NonNull final DialogInterface.OnClickListener onDownloadClickListener) {
+        AppExecutors.getInstance().mainThread().execute(() -> {
+            new MaterialAlertDialogBuilder(context)
+                    .setTitle(context.getString(R.string.update_available, version))
+                    .setNeutralButton(R.string.skip_update, (dialog, which) -> {
+                        settingsHelper.putString(Constants.SKIPPED_VERSION, version);
+                        dialog.dismiss();
+                    })
+                    .setPositiveButton(R.string.action_download, onDownloadClickListener)
+                    .setNegativeButton(R.string.cancel, null)
+                    .show();
+        });
+    }
+}

app/src/main/java/awais/instagrabber/utils/UpdateChecker.java

@@ -1,58 +0,0 @@
-package awais.instagrabber.utils;
-
-import android.os.AsyncTask;
-import android.util.Log;
-
-import androidx.annotation.NonNull;
-
-import org.json.JSONObject;
-
-import java.net.HttpURLConnection;
-import java.net.URL;
-
-import awais.instagrabber.BuildConfig;
-import awais.instagrabber.interfaces.FetchListener;
-
-public final class UpdateChecker extends AsyncTask<Void, Void, Boolean> {
-    private final FetchListener<String> fetchListener;
-    private String version;
-
-    public UpdateChecker(final FetchListener<String> fetchListener) {
-        this.fetchListener = fetchListener;
-    }
-
-    @NonNull
-    @Override
-    protected Boolean doInBackground(final Void... voids) {
-        try {
-            version = "";
-
-            HttpURLConnection conn =
-                    (HttpURLConnection) new URL("https://f-droid.org/api/v1/packages/me.austinhuang.instagrabber").openConnection();
-            conn.setUseCaches(false);
-            conn.setRequestProperty("User-Agent", "https://Barinsta.AustinHuang.me / mailto:Barinsta@AustinHuang.me");
-            conn.connect();
-
-            final int responseCode = conn.getResponseCode();
-            if (responseCode == HttpURLConnection.HTTP_OK) {
-                final JSONObject data = new JSONObject(NetworkUtils.readFromConnection(conn));
-                if (BuildConfig.VERSION_CODE < data.getInt("suggestedVersionCode")) {
-                    version = data.getJSONArray("packages").getJSONObject(0).getString("versionName");
-                    return true;
-                }
-            }
-
-            conn.disconnect();
-        } catch (final Exception e) {
-            if (BuildConfig.DEBUG) Log.e("AWAISKING_APP", "", e);
-        }
-
-        return false;
-    }
-
-    @Override
-    protected void onPostExecute(final Boolean result) {
-        if (result != null && result && fetchListener != null)
-            fetchListener.onResult("v"+version);
-    }
-}

app/src/main/res/values/strings.xml

@@ -475,4 +475,5 @@
     <string name="delete_unsuccessful">Delete unsuccessful</string>
     <string name="crash_report_subject">Barinsta Crash Report</string>
     <string name="crash_report_title">Select an email app to send crash logs</string>
+    <string name="skip_update">Skip this update</string>
 </resources>