Kitkat specific fixes

app/src/main/java/gr/thmmy/mthmmy/activities/main/MainActivity.java

@@ -3,6 +3,7 @@ package gr.thmmy.mthmmy.activities.main;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.net.Uri;
+import android.os.Build;
 import android.os.Bundle;
 import android.widget.Toast;
 
@@ -11,6 +12,7 @@ import com.google.android.material.tabs.TabLayout;
 import java.util.ArrayList;
 import java.util.List;
 
+import androidx.appcompat.app.AppCompatDelegate;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentPagerAdapter;
@@ -54,6 +56,13 @@ public class MainActivity extends BaseActivity implements RecentFragment.RecentF
     private ViewPager viewPager;
     private TabLayout tabLayout;
 
+    //Fix for vector drawables on android <21
+    static {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
+            AppCompatDelegate.setCompatVectorFromResourcesEnabled(true);
+        }
+    }
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

app/src/main/java/gr/thmmy/mthmmy/base/BaseActivity.java

@@ -118,7 +118,7 @@ public abstract class BaseActivity extends AppCompatActivity {
             loadSavedBookmarks();
         }
 
-        sharedPreferences =  PreferenceManager.getDefaultSharedPreferences(this);
+        sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
 
         BaseViewModel baseViewModel = ViewModelProviders.of(this).get(BaseViewModel.class);
         baseViewModel.getCurrentPageBookmark().observe(this, thisPageBookmark -> setTopicBookmark(thisPageBookmarkMenuButton));
@@ -128,7 +128,7 @@ public abstract class BaseActivity extends AppCompatActivity {
     protected void onResume() {
         super.onResume();
         updateDrawer();
-        if(!sharedPreferences.getBoolean(getString(R.string.user_consent_shared_preference_key),false))
+        if (!sharedPreferences.getBoolean(getString(R.string.user_consent_shared_preference_key), false))
             showUserConsentDialog();
     }
 
@@ -646,7 +646,7 @@ public abstract class BaseActivity extends AppCompatActivity {
                 FirebaseMessaging.getInstance().unsubscribeFromTopic(bookmark.getId());
 
             return topicsBookmarked.get(bookmark.findIndex(topicsBookmarked)).isNotificationsEnabled();
-        } else  if (bookmark.matchExists(boardsBookmarked)) {
+        } else if (bookmark.matchExists(boardsBookmarked)) {
             boardsBookmarked.get(bookmark.findIndex(boardsBookmarked)).toggleNotificationsEnabled();
             updateBoardBookmarks();
 
@@ -760,7 +760,7 @@ public abstract class BaseActivity extends AppCompatActivity {
     }
 
     //----------------------------PRIVACY POLICY------------------
-    private void showUserConsentDialog(){
+    private void showUserConsentDialog() {
         AlertDialog.Builder builder = new AlertDialog.Builder(this, R.style.AppCompatAlertDialogStyle);
         builder.setTitle("User Agreement");
         builder.setMessage(R.string.user_agreement_dialog_text);
@@ -788,7 +788,7 @@ public abstract class BaseActivity extends AppCompatActivity {
 
     protected void showPrivacyPolicyDialog() {
         TextView privacyPolicyTextView = new TextView(this);
-        privacyPolicyTextView.setPadding(30,20,30,20);
+        privacyPolicyTextView.setPadding(30, 20, 30, 20);
         privacyPolicyTextView.setTextColor(ContextCompat.getColor(this, R.color.primary_text));
         SpannableConfiguration configuration = SpannableConfiguration.builder(this).linkResolver(new LinkResolverDef()).build();
         StringBuilder stringBuilder = new StringBuilder();
@@ -812,7 +812,7 @@ public abstract class BaseActivity extends AppCompatActivity {
             Timber.e(e, "Error in Privacy Policy dialog.");
         } finally {
             try {
-                if(reader!=null)
+                if (reader != null)
                     reader.close();
             } catch (IOException e) {
                 Timber.e(e, "Error in Privacy Policy dialog (closing reader).");
@@ -820,12 +820,12 @@ public abstract class BaseActivity extends AppCompatActivity {
         }
     }
 
-    private void addUserConsent(){
+    private void addUserConsent() {
         SharedPreferences.Editor editor = sharedPreferences.edit();
         editor.putBoolean(getString(R.string.user_consent_shared_preference_key), true).apply();
     }
 
-    private void setUserDataShareEnabled(boolean enabled){
+    private void setUserDataShareEnabled(boolean enabled) {
         SharedPreferences.Editor editor = sharedPreferences.edit();
         editor.putBoolean(getString(R.string.pref_privacy_crashlytics_enable_key), enabled).apply();
         editor.putBoolean(getString(R.string.pref_privacy_analytics_enable_key), enabled).apply();
@@ -836,7 +836,7 @@ public abstract class BaseActivity extends AppCompatActivity {
         this.mainActivity = mainActivity;
     }
 
-    private void startLoginActivity(){
+    private void startLoginActivity() {
         Intent intent = new Intent(BaseActivity.this, LoginActivity.class);
         startActivity(intent);
         overridePendingTransition(R.anim.push_right_in, R.anim.push_right_out);

app/src/main/java/gr/thmmy/mthmmy/base/BaseApplication.java

@@ -5,6 +5,7 @@ import android.content.Context;
 import android.content.SharedPreferences;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
+import android.os.Build;
 import android.os.Bundle;
 import android.util.DisplayMetrics;
 import android.widget.ImageView;
@@ -25,6 +26,9 @@ import com.squareup.picasso.Picasso;
 import net.gotev.uploadservice.UploadService;
 import net.gotev.uploadservice.okhttp.OkHttpStack;
 
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
 import java.util.Objects;
 import java.util.concurrent.TimeUnit;
 
@@ -35,6 +39,8 @@ import gr.thmmy.mthmmy.R;
 import gr.thmmy.mthmmy.session.SessionManager;
 import gr.thmmy.mthmmy.utils.CrashReportingTree;
 import io.fabric.sdk.android.Fabric;
+import okhttp3.CipherSuite;
+import okhttp3.ConnectionSpec;
 import okhttp3.HttpUrl;
 import okhttp3.OkHttpClient;
 import okhttp3.Request;
@@ -82,14 +88,14 @@ public class BaseApplication extends Application {
         firebaseAnalytics = FirebaseAnalytics.getInstance(this);
         boolean enableAnalytics = settingsSharedPrefs.getBoolean(getString(R.string.pref_privacy_analytics_enable_key), false);
         firebaseAnalytics.setAnalyticsCollectionEnabled(enableAnalytics);
-        if(enableAnalytics)
+        if (enableAnalytics)
             Timber.i("Starting app with Analytics enabled.");
         else
             Timber.i("Starting app with Analytics disabled.");
 
         SharedPrefsCookiePersistor sharedPrefsCookiePersistor = new SharedPrefsCookiePersistor(getApplicationContext());
         PersistentCookieJar cookieJar = new PersistentCookieJar(new SetCookieCache(), sharedPrefsCookiePersistor);
-        client = new OkHttpClient.Builder()
+        OkHttpClient.Builder builder = new OkHttpClient.Builder()
                 .cookieJar(cookieJar)
                 .addInterceptor(chain -> {
                     Request request = chain.request();
@@ -103,9 +109,25 @@ public class BaseApplication extends Application {
                     }
                     return chain.proceed(request);
                 })
-                .callTimeout(30, TimeUnit.SECONDS)
-                .build();
-        sessionManager = new SessionManager(client, cookieJar, sharedPrefsCookiePersistor, sharedPrefs,draftsPrefs);
+                .callTimeout(30, TimeUnit.SECONDS);
+
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) { // Just for KitKats
+            // Necessary because our servers don't have the right cipher suites.
+            // https://github.com/square/okhttp/issues/4053
+            List<CipherSuite> cipherSuites = new ArrayList<>(ConnectionSpec.MODERN_TLS.cipherSuites());
+            cipherSuites.add(CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA);
+            cipherSuites.add(CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA);
+
+            ConnectionSpec legacyTls = new ConnectionSpec.Builder(ConnectionSpec.MODERN_TLS)
+                    .cipherSuites(cipherSuites.toArray(new CipherSuite[0]))
+                    .build();
+
+            builder.connectionSpecs(Arrays.asList(legacyTls, ConnectionSpec.CLEARTEXT));
+        }
+
+        client = builder.build();
+
+        sessionManager = new SessionManager(client, cookieJar, sharedPrefsCookiePersistor, sharedPrefs, draftsPrefs);
         Picasso picasso = new Picasso.Builder(getApplicationContext())
                 .downloader(new OkHttp3Downloader(client))
                 .build();
@@ -170,13 +192,13 @@ public class BaseApplication extends Application {
 
     public void setFirebaseAnalyticsCollection(boolean enabled) {
         firebaseAnalytics.setAnalyticsCollectionEnabled(enabled);
-        if(!enabled)
+        if (!enabled)
             firebaseAnalytics.resetAnalyticsData();
     }
 
     // Set up Crashlytics, disabled for debug builds
     public void startFirebaseCrashlyticsCollection() {
-        if(!Fabric.isInitialized()){
+        if (!Fabric.isInitialized()) {
             Crashlytics crashlyticsKit = new Crashlytics.Builder()
                     .core(new CrashlyticsCore.Builder().disabled(BuildConfig.DEBUG).build())
                     .build();
@@ -184,8 +206,7 @@ public class BaseApplication extends Application {
             Fabric.with(this, crashlyticsKit);
             Timber.plant(new CrashReportingTree());
             Timber.i("Crashlytics enabled.");
-        }
-        else
+        } else
             Timber.i("Crashlytics were already initialized for this app session.");
     }
 }