Start adding GCM Register service

AndroidManifest.xml

@@ -82,11 +82,26 @@
                 android:value="com.google.android.location.internal.GMS_NLP" />
         </service>
 
+        <!-- Device Checkin -->
+
+        <!-- Cloud Messaging -->
+        <service
+            android:name="org.microg.gms.gcm.PushRegisterService"
+            android:exported="true"
+            android:permission="com.google.android.c2dm.permission.RECEIVE">
+            <intent-filter>
+                <action android:name="com.google.android.c2dm.intent.REGISTER" />
+            </intent-filter>
+            <intent-filter>
+                <action android:name="com.google.android.c2dm.intent.UNREGISTER" />
+            </intent-filter>
+        </service>
+
         <!-- Services Framework -->
         <provider
             android:name="org.microg.gms.gservices.GServicesProvider"
             android:exported="true"
-            android:authorities="com.google.android.gsf.gservices"/>
+            android:authorities="com.google.android.gsf.gservices" />
 
         <provider
             android:name="org.microg.gms.feeds.SubscribedFeedsProvider"
@@ -103,7 +118,7 @@
             android:exported="true">
             <intent-filter>
                 <action android:name="com.google.android.gms.people.service.START" />
-                <category android:name="android.intent.category.DEFAULT"/>
+                <category android:name="android.intent.category.DEFAULT" />
             </intent-filter>
         </service>
 

src/org/microg/gms/gcm/GcmManager.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2013-2015 µg Project Team
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.microg.gms.gcm;
+
+import android.content.Context;
+
+import org.microg.gms.common.Utils;
+
+public class GcmManager {
+    public static String register(Context context, String app, String sender, String info) {
+        new RegisterRequest()
+                .build(Utils.getBuild(context))
+                .sender(sender)
+                .info(info)
+                .app(app, Utils.getFirstPackageSignatureDigest(context, app), 0); // TODO
+        return null;
+    }
+}

src/org/microg/gms/gcm/PushRegisterService.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright 2013-2015 µg Project Team
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.microg.gms.gcm;
+
+import android.app.IntentService;
+import android.app.PendingIntent;
+import android.content.Intent;
+import android.os.Build;
+import android.util.Log;
+
+public class PushRegisterService extends IntentService {
+    private static final String TAG = "GmsGcmRegisterService";
+
+    public PushRegisterService() {
+        super(TAG);
+    }
+
+    @Override
+    protected void onHandleIntent(Intent intent) {
+        Log.d(TAG, "onHandleIntent: " + intent);
+        try {
+            if (intent != null && intent.getAction() != null) {
+                if (intent.getAction().equalsIgnoreCase("com.google.android.c2dm.intent.REGISTER")) {
+                    register(intent);
+                } else if (intent.getAction().equalsIgnoreCase("com.google.android.c2dm.intent.UNREGISTER")) {
+                    unregister(intent);
+                }
+            }
+        } catch (Exception e) {
+            Log.w(TAG, e);
+        }
+    }
+
+    @SuppressWarnings("deprecation")
+    private String packageFromPendingIntent(PendingIntent pi) {
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) {
+            return pi.getTargetPackage();
+        } else {
+            return pi.getCreatorPackage();
+        }
+    }
+
+    private void register(Intent intent) {
+        PendingIntent pendingIntent = intent.getParcelableExtra("app");
+        String sender = intent.getStringExtra("sender");
+        String app = packageFromPendingIntent(pendingIntent);
+        Intent outIntent = new Intent("com.google.android.c2dm.intent.REGISTRATION");
+        outIntent.setPackage(app);
+        String regId = GcmManager.register(this, app, sender, null); // TODO
+        if (regId != null) {
+            outIntent.putExtra("registration_id", regId);
+        } else {
+            outIntent.putExtra("error", "SERVICE_NOT_AVAILABLE");
+        }
+        sendOrderedBroadcast(outIntent, null);
+    }
+
+    private void unregister(Intent intent) {
+
+    }
+}