Setup client-side for integration with the wryk/tusky-api prototype.

app/src/main/java/com/keylesspalace/tusky/BaseActivity.java

@@ -35,6 +35,8 @@ import com.keylesspalace.tusky.json.SpannedTypeAdapter;
 import com.keylesspalace.tusky.json.StringWithEmoji;
 import com.keylesspalace.tusky.json.StringWithEmojiTypeAdapter;
 import com.keylesspalace.tusky.network.MastodonAPI;
+import com.keylesspalace.tusky.network.TuskyApi;
+import com.keylesspalace.tusky.util.Log;
 import com.keylesspalace.tusky.util.OkHttpUtils;
 import com.keylesspalace.tusky.util.PushNotificationClient;
 
@@ -45,11 +47,17 @@ import okhttp3.Interceptor;
 import okhttp3.OkHttpClient;
 import okhttp3.Request;
 import okhttp3.Response;
+import okhttp3.ResponseBody;
+import retrofit2.Call;
+import retrofit2.Callback;
 import retrofit2.Retrofit;
 import retrofit2.converter.gson.GsonConverterFactory;
 
 public class BaseActivity extends AppCompatActivity {
+    private static final String TAG = "BaseActivity"; // logging tag
+
     public MastodonAPI mastodonAPI;
+    public TuskyApi tuskyApi;
     protected PushNotificationClient pushNotificationClient;
     protected Dispatcher mastodonApiDispatcher;
 
@@ -59,7 +67,8 @@ public class BaseActivity extends AppCompatActivity {
 
         redirectIfNotLoggedIn();
         createMastodonAPI();
-        createTuskyAPI();
+        createTuskyApi();
+        createPushNotificationClient();
 
         /* There isn't presently a way to globally change the theme of a whole application at
          * runtime, just individual activities. So, each activity has to set its theme before any
@@ -151,9 +160,19 @@ public class BaseActivity extends AppCompatActivity {
         mastodonAPI = retrofit.create(MastodonAPI.class);
     }
 
-    protected void createTuskyAPI() {
+    protected void createTuskyApi() {
+        Retrofit retrofit = new Retrofit.Builder()
+                .baseUrl("https://" + getString(R.string.tusky_api_domain))
+                .client(OkHttpUtils.getCompatibleClient())
+                .build();
+
+        tuskyApi = retrofit.create(TuskyApi.class);
+    }
+
+    protected void createPushNotificationClient() {
+        // TODO: Switch to ssl:// when TLS support is added.
         pushNotificationClient = new PushNotificationClient(getApplicationContext(),
-                getString(R.string.tusky_api_url));
+                "tcp://" + getString(R.string.tusky_api_domain));
     }
 
     protected void redirectIfNotLoggedIn() {
@@ -187,10 +206,57 @@ public class BaseActivity extends AppCompatActivity {
     }
 
     protected void enablePushNotifications() {
-        pushNotificationClient.subscribeToTopic();
+        Callback<ResponseBody> callback = new Callback<ResponseBody>() {
+            @Override
+            public void onResponse(Call<ResponseBody> call,
+                                   retrofit2.Response<ResponseBody> response) {
+                if (response.isSuccessful()) {
+                    pushNotificationClient.subscribeToTopic(getPushNotificationTopic());
+                } else {
+                    onEnablePushNotificationsFailure();
+                }
+            }
+
+            @Override
+            public void onFailure(Call<ResponseBody> call, Throwable t) {
+                onEnablePushNotificationsFailure();
+            }
+        };
+        tuskyApi.register(getBaseUrl(), getAccessToken(), pushNotificationClient.getDeviceToken())
+                .enqueue(callback);
+    }
+
+    private void onEnablePushNotificationsFailure() {
+        Log.e(TAG, "Enabling push notifications failed.");
     }
 
     protected void disablePushNotifications() {
-        pushNotificationClient.unsubscribeToTopic();
+        Callback<ResponseBody> callback = new Callback<ResponseBody>() {
+            @Override
+            public void onResponse(Call<ResponseBody> call,
+                                   retrofit2.Response<ResponseBody> response) {
+                if (response.isSuccessful()) {
+                    pushNotificationClient.unsubscribeToTopic(getPushNotificationTopic());
+                } else {
+                    onDisablePushNotificationsFailure();
+                }
+            }
+
+            @Override
+            public void onFailure(Call<ResponseBody> call, Throwable t) {
+                onDisablePushNotificationsFailure();
+            }
+        };
+        tuskyApi.unregister(getBaseUrl(), getAccessToken(), pushNotificationClient.getDeviceToken())
+                .enqueue(callback);
+    }
+
+    private void onDisablePushNotificationsFailure() {
+        Log.e(TAG, "Disabling push notifications failed.");
+    }
+
+    private String getPushNotificationTopic() {
+        return String.format("%s/%s/%s", getBaseUrl(), getAccessToken(),
+                pushNotificationClient.getDeviceToken());
     }
 }

app/src/main/java/com/keylesspalace/tusky/network/TuskyApi.java

@@ -17,15 +17,14 @@ package com.keylesspalace.tusky.network;
 
 import okhttp3.ResponseBody;
 import retrofit2.Call;
-import retrofit2.http.Field;
 import retrofit2.http.FormUrlEncoded;
 import retrofit2.http.POST;
 
-public interface TuskyAPI {
+public interface TuskyApi {
     @FormUrlEncoded
     @POST("/register")
-    Call<ResponseBody> register(@Field("instance_url") String instanceUrl, @Field("access_token") String accessToken, @Field("device_token") String deviceToken);
+    Call<ResponseBody> register(String instanceUrl, String accessToken, String deviceToken);
     @FormUrlEncoded
     @POST("/unregister")
-    Call<ResponseBody> unregister(@Field("instance_url") String instanceUrl, @Field("access_token") String accessToken);
+    Call<ResponseBody> unregister(String instanceUrl, String accessToken, String deviceToken);
 }

app/src/main/java/com/keylesspalace/tusky/util/PushNotificationClient.java

@@ -29,6 +29,7 @@ import org.eclipse.paho.client.mqttv3.MqttMessage;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.ArrayDeque;
+import java.util.ArrayList;
 
 import okhttp3.Interceptor;
 import okhttp3.OkHttpClient;
@@ -43,23 +44,37 @@ import static android.content.Context.NOTIFICATION_SERVICE;
 
 public class PushNotificationClient {
     private static final String TAG = "PushNotificationClient";
-    private static final String TOPIC = "tusky/notification";
     private static final int NOTIFY_ID = 666;
 
-    private enum QueuedAction {
+    private static class QueuedAction {
+        enum Type {
             SUBSCRIBE,
             UNSUBSCRIBE,
             DISCONNECT,
         }
 
+        Type type;
+        String topic;
+
+        QueuedAction(Type type) {
+            this.type = type;
+        }
+
+        QueuedAction(Type type, String topic) {
+            this.type = type;
+            this.topic = topic;
+        }
+    }
+
     private MqttAndroidClient mqttAndroidClient;
     private MastodonAPI mastodonApi;
     private ArrayDeque<QueuedAction> queuedActions;
-    private boolean subscribed;
+    private ArrayList<String> subscribedTopics;
 
     public PushNotificationClient(final @NonNull Context applicationContext,
                                   @NonNull String serverUri) {
         queuedActions = new ArrayDeque<>();
+        subscribedTopics = new ArrayList<>();
 
         // Create the MQTT client.
         String clientId = MqttClient.generateClientId();
@@ -69,8 +84,8 @@ public class PushNotificationClient {
             public void connectComplete(boolean reconnect, String serverURI) {
                 if (reconnect) {
                     flushQueuedActions();
-                    if (subscribed) {
+                    for (String topic : subscribedTopics) {
-                        subscribeToTopic();
+                        subscribeToTopic(topic);
                     }
                 }
             }
@@ -133,9 +148,9 @@ public class PushNotificationClient {
     private void flushQueuedActions() {
         while (!queuedActions.isEmpty()) {
             QueuedAction action = queuedActions.pop();
-            switch (action) {
+            switch (action.type) {
-                case SUBSCRIBE:   subscribeToTopic();   break;
+                case SUBSCRIBE:   subscribeToTopic(action.topic);   break;
-                case UNSUBSCRIBE: unsubscribeToTopic(); break;
+                case UNSUBSCRIBE: unsubscribeToTopic(action.topic); break;
                 case DISCONNECT:  disconnect();                     break;
             }
         }
@@ -144,7 +159,7 @@ public class PushNotificationClient {
     /** Disconnect from the MQTT broker. */
     public void disconnect() {
         if (!mqttAndroidClient.isConnected()) {
-            queuedActions.add(QueuedAction.DISCONNECT);
+            queuedActions.add(new QueuedAction(QueuedAction.Type.DISCONNECT));
             return;
         }
         try {
@@ -160,16 +175,16 @@ public class PushNotificationClient {
     }
 
     /** Subscribe to the push notification topic. */
-    public void subscribeToTopic() {
+    public void subscribeToTopic(final String topic) {
         if (!mqttAndroidClient.isConnected()) {
-            queuedActions.add(QueuedAction.SUBSCRIBE);
+            queuedActions.add(new QueuedAction(QueuedAction.Type.SUBSCRIBE, topic));
             return;
         }
         try {
-            mqttAndroidClient.subscribe(TOPIC, 0, null, new IMqttActionListener() {
+            mqttAndroidClient.subscribe(topic, 0, null, new IMqttActionListener() {
                 @Override
                 public void onSuccess(IMqttToken asyncActionToken) {
-                    subscribed = true;
+                    subscribedTopics.add(topic);
                     onConnectionSuccess();
                 }
 
@@ -186,14 +201,14 @@ public class PushNotificationClient {
     }
 
     /** Unsubscribe from the push notification topic. */
-    public void unsubscribeToTopic() {
+    public void unsubscribeToTopic(String topic) {
         if (!mqttAndroidClient.isConnected()) {
-            queuedActions.add(QueuedAction.UNSUBSCRIBE);
+            queuedActions.add(new QueuedAction(QueuedAction.Type.UNSUBSCRIBE, topic));
             return;
         }
         try {
-            mqttAndroidClient.unsubscribe(TOPIC);
+            mqttAndroidClient.unsubscribe(topic);
-            subscribed = false;
+            subscribedTopics.remove(topic);
         } catch (MqttException e) {
             Log.e(TAG, "An exception occurred while unsubscribing." + e.getMessage());
             onConnectionFailure();
@@ -271,4 +286,8 @@ public class PushNotificationClient {
     public void clearNotifications(Context context) {
         ((NotificationManager) (context.getSystemService(NOTIFICATION_SERVICE))).cancel(NOTIFY_ID);
     }
+
+    public String getDeviceToken() {
+        return mqttAndroidClient.getClientId();
+    }
 }

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

@@ -2,7 +2,7 @@
 <resources>
     <string name="app_name" translatable="false">Tusky</string>
     <string name="app_website" translatable="false">https://tusky.keylesspalace.com</string>
-    <string name="tusky_api_url" translatable="false">tcp://tuskyapi.keylesspalace.com</string>
+    <string name="tusky_api_domain" translatable="false">tuskyapi.keylesspalace.com</string>
     <string name="tusky_api_keystore_password" translatable="false">your_password_here</string>
 
     <string name="oauth_scheme" translatable="false">oauth2redirect</string>