Bug 784157 - Google Play Campaign Tracking: Convert the INSTALL_REFERRER data to distribution prefs r=blassey

mobile/android/base/AndroidManifest.xml.in

@@ -166,6 +166,12 @@
             </intent-filter>
         </receiver>
 
+        <receiver android:name="org.mozilla.gecko.ReferrerReceiver" android:exported="true">
+            <intent-filter>
+                <action android:name="com.android.vending.INSTALL_REFERRER" />
+            </intent-filter>
+        </receiver>
+
         <activity android:name="Restarter"
                   android:process="@ANDROID_PACKAGE_NAME@Restarter"
                   android:theme="@style/Gecko">

mobile/android/base/Makefile.in

@@ -172,6 +172,7 @@ FENNEC_JAVA_FILES = \
   GeckoScreenOrientationListener.java \
   UpdateService.java \
   GeckoUpdateReceiver.java \
+  ReferrerReceiver.java \
   $(NULL)
 
 ifdef MOZ_WEBSMS_BACKEND

mobile/android/base/ReferrerReceiver.java

@@ -0,0 +1,71 @@
+/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.gecko;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.util.Log;
+
+import java.net.URLDecoder;
+import java.util.HashMap;
+
+public class ReferrerReceiver
+    extends BroadcastReceiver
+{
+    private static final String LOGTAG = "GeckoReferrerReceiver";
+
+    public static final String ACTION_INSTALL_REFERRER = "com.android.vending.INSTALL_REFERRER";
+    public static final String UTM_SOURCE = "mozilla";
+
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        if (ACTION_INSTALL_REFERRER.equals(intent.getAction())) {
+            String referrer = intent.getStringExtra("referrer");
+            if (referrer == null)
+                return;
+
+            HashMap<String, String> values = new HashMap<String, String>();
+            try {
+                String referrers[] = referrer.split("&");
+                for (String referrerValue : referrers) {
+                    String keyValue[] = referrerValue.split("=");
+                    values.put(URLDecoder.decode(keyValue[0]), URLDecoder.decode(keyValue[1]));
+                }
+            } catch (Exception e) {
+            }
+
+            String source = values.get("utm_source");
+            String campaign = values.get("utm_campaign");
+
+            if (source != null && UTM_SOURCE.equals(source) && campaign != null) {
+                try {
+                    JSONObject idPref = new JSONObject();
+                    idPref.put("name", "distribution.id");
+                    idPref.put("type", "string");
+                    idPref.put("value", "playstore");
+
+                    JSONObject versionPref = new JSONObject();
+                    versionPref.put("name", "distribution.version");
+                    versionPref.put("type", "string");
+                    versionPref.put("value", campaign);
+
+                    // Try to make sure the prefs are written as a group
+                    GeckoEvent idEvent = GeckoEvent.createBroadcastEvent("Preferences:Set", idPref.toString());
+                    GeckoAppShell.sendEventToGecko(idEvent);
+                    GeckoEvent versionEvent = GeckoEvent.createBroadcastEvent("Preferences:Set", versionPref.toString());
+                    GeckoAppShell.sendEventToGecko(versionEvent);
+                } catch (JSONException e) {
+                    Log.e(LOGTAG, "Error setting distribution prefs", e);
+                }
+            }
+        }
+    }
+}