Feature: Switch credentials in runtime.

DependencyInjection/Configuration.php

@@ -63,7 +63,7 @@ protected function addAndroid()
                         arrayNode("gcm")->
                             canBeUnset()->
                             children()->
-                                scalarNode("api_key")->isRequired()->cannotBeEmpty()->end()->
+                                scalarNode("api_key")->defaultValue("")->end()->
                                 booleanNode("use_multi_curl")->defaultValue(true)->end()->
                                 booleanNode("dry_run")->defaultFalse()->end()->
                             end()->

Service/Notifications.php

@@ -4,6 +4,7 @@
 
 use RMS\PushNotificationsBundle\Device\Types;
 use RMS\PushNotificationsBundle\Message\MessageInterface;
+use RMS\PushNotificationsBundle\Service\OS\AndroidGCMNotification;
 use RMS\PushNotificationsBundle\Service\OS\AppleNotification;
 
 class Notifications
@@ -99,4 +100,35 @@ public function setAPNSPemAsString($pemContent, $passphrase) {
             $appleNotification->setPemAsString($pemContent, $passphrase);
         }
     }
+
+    /**
+     * Set Apple Push Notification Service pem as filepath.
+     * Service won't use pem file passed by config anymore.
+     *
+     * @param string $pemPath
+     * @param string $passphrase
+     */
+    public function setAPNSPemPath($pemPath, $passphrase)
+    {
+        if (isset($this->handlers[Types::OS_IOS]) && $this->handlers[Types::OS_IOS] instanceof AppleNotification) {
+            /** @var AppleNotification $appleNotification */
+            $appleNotification = $this->handlers[Types::OS_IOS];
+            $appleNotification->setPemPath($pemPath, $passphrase);
+        }
+    }
+
+    /**
+     * Set Android GCM API key.
+     * Service won't use api key passed by config anymore.
+     *
+     * @param string $apiKey
+     */
+    public function setGCMApiKey($apiKey)
+    {
+        if (isset($this->handlers[Types::OS_ANDROID_GCM]) && $this->handlers[Types::OS_ANDROID_GCM] instanceof AndroidGCMNotification) {
+            /** @var AndroidGCMNotification $androidGCMNotification */
+            $androidGCMNotification = $this->handlers[Types::OS_ANDROID_GCM];
+            $androidGCMNotification->setApiKey($apiKey);
+        }
+    }
 }

Service/OS/AndroidGCMNotification.php

@@ -168,4 +168,14 @@ public function getResponses()
     {
         return $this->responses;
     }
+
+    /**
+     * Change Google GCM API key
+     *
+     * @param string $apiKey
+     */
+    public function setApiKey($apiKey)
+    {
+        $this->apiKey = $apiKey;
+    }
 }

Service/OS/AppleNotification.php

@@ -431,6 +431,23 @@ public function setPemAsString($pemContent, $passphrase) {
         $this->closeStreams();
     }
 
+    /**
+     * @param string $pemPath
+     * @param string $passphrase
+     */
+    public function setPemPath($pemPath, $passphrase)
+    {
+        if ($this->pemPath === $pemPath && $this->passphrase === $passphrase) {
+            return;
+        }
+
+        $this->pemPath = $pemPath;
+        $this->passphrase = $passphrase;
+
+        // for new pem will take affect we need to close existing streams which use cached pem
+        $this->closeStreams();
+    }
+
     /**
      * Called on kernel terminate
      */

Tests/DependencyInjection/ConfigurationTest.php

@@ -87,10 +87,7 @@ public function testNewC2DMIsAllowedWithoutOldBits()
         $this->assertEquals("123", $config["android"]["c2dm"]["source"]);
     }
 
-    /**
-     * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidConfigurationException
-     */
-    public function testGCMRequiresAPIKey()
+    public function testGCMEmptyAPIKey()
     {
         $arr = array(
             array(
@@ -101,6 +98,8 @@ public function testGCMRequiresAPIKey()
             ),
         );
         $config = $this->process($arr);
+        $this->assertEmpty($config["android"]["gcm"]["api_key"]);
+        $this->assertFalse($config["android"]["gcm"]["dry_run"]);
     }
 
     public function testGCMIsOK()