feature #304 Add support for headers in native mailer (anthonybocci, lyrixx)

This PR was merged into the 3.x-dev branch.

Discussion
----------

Add support for headers in native mailer

The native mailer is able to have additional headers, but it
wasn't possible to give it any headers in the configuration.
Swift mailer may have a content_type key but not native mailer.

A new "headers" key is now allowed in the handler configuration, so a
list of headers may be given to the handler. Only native mailer supports
it.

Related to #272

Commits
-------

19eaa0f Fix 'Add support for headers in native mailer'
7ecbc9e Add support for headers in native mailer

Author: lyrixx

DependencyInjection/Configuration.php

@@ -175,6 +175,7 @@
  *   - subject: string
  *   - [level]: level name or int value, defaults to DEBUG
  *   - [bubble]: bool, defaults to true
+ *   - [headers]: optional array containing additional headers: ['Foo: Bar', '...']
  *
  * - socket:
  *   - connection_string: string
@@ -347,6 +348,7 @@ public function getConfigTreeBuilder()
                         ->fixXmlConfig('excluded_http_code')
                         ->fixXmlConfig('tag')
                         ->fixXmlConfig('accepted_level')
+                        ->fixXmlConfig('header')
                         ->canBeUnset()
                         ->children()
                             ->scalarNode('type')
@@ -594,6 +596,10 @@ public function getConfigTreeBuilder()
                             ->end()
                             ->scalarNode('subject')->end() // swift_mailer and native_mailer
                             ->scalarNode('content_type')->defaultNull()->end() // swift_mailer
+                            ->arrayNode('headers') // native_mailer
+                                ->canBeUnset()
+                                ->scalarPrototype()->end()
+                            ->end()
                             ->scalarNode('mailer')->defaultValue('mailer')->end() // swift_mailer
                             ->arrayNode('email_prototype') // swift_mailer
                                 ->canBeUnset()

DependencyInjection/MonologExtension.php

@@ -540,6 +540,9 @@ private function buildHandler(ContainerBuilder $container, $name, array $handler
                 $handler['level'],
                 $handler['bubble'],
             ));
+            if (!empty($handler['headers'])) {
+                $definition->addMethodCall('addHeader', [$handler['headers']]);
+            }
             break;
 
         case 'socket':

Resources/config/schema/monolog-1.0.xsd

@@ -28,6 +28,7 @@
             <xsd:element name="tag" type="xsd:string" minOccurs="0" maxOccurs="unbounded" />
             <xsd:element name="accepted-level" type="level" minOccurs="0" maxOccurs="unbounded" />
             <xsd:element name="to-email" type="xsd:string" minOccurs="0" maxOccurs="unbounded" />
+            <xsd:element name="header" type="xsd:string" minOccurs="0" maxOccurs="unbounded" />
         </xsd:sequence>
         <xsd:attribute name="type" type="xsd:string" />
         <xsd:attribute name="priority" type="xsd:integer" />
@@ -186,4 +187,10 @@
         </xsd:choice>
         <xsd:attribute name="code" type="xsd:integer" />
     </xsd:complexType>
+
+    <xsd:complexType name="headers">
+        <xsd:sequence>
+            <xsd:any minOccurs="0" processContents="lax"/>
+        </xsd:sequence>
+    </xsd:complexType>
 </xsd:schema>

Tests/DependencyInjection/FixtureMonologExtensionTest.php

@@ -216,6 +216,17 @@ public function testPsr3MessageProcessingDisabled()
         $this->assertNotContains(array('pushProcessor', array(new Reference('monolog.processor.psr_log_message'))), $methodCalls, 'The PSR-3 processor should not be enabled', false, false);
     }
 
+    public function testNativeMailer()
+    {
+        $container = $this->getContainer('native_mailer');
+
+        $logger = $container->getDefinition('monolog.handler.mailer');
+        $methodCalls = $logger->getMethodCalls();
+
+        $this->assertCount(2, $methodCalls);
+        $this->assertSame(['addHeader', [['Foo: bar', 'Baz: inga']]], $methodCalls[1]);
+    }
+
     protected function getContainer($fixture)
     {
         $container = new ContainerBuilder();

Tests/DependencyInjection/Fixtures/xml/native_mailer.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" ?>
+
+<srv:container xmlns="http://symfony.com/schema/dic/monolog"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xmlns:srv="http://symfony.com/schema/dic/services"
+    xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd
+                        http://symfony.com/schema/dic/monolog http://symfony.com/schema/dic/monolog/monolog-1.0.xsd">
+
+    <config>
+        <handler name="mailer" type="native_mailer" to-email="foo@example.com" from-email="bar@example.com" subject="a subject">
+            <header>Foo: bar</header>
+            <header>Baz: inga</header>
+        </handler>
+    </config>
+</srv:container>

Tests/DependencyInjection/Fixtures/yml/native_mailer.yml

@@ -0,0 +1,10 @@
+monolog:
+    handlers:
+        mailer:
+            type: native_mailer
+            from_email: foo@example.com
+            to_email: bar@exemple.com
+            subject: a subject
+            headers:
+                - "Foo: bar"
+                - "Baz: inga"