From 7ecbc9e52d4f410ba08e82aea1adccb48ff3f23f Mon Sep 17 00:00:00 2001
From: Anthony Bocci <boccianthony@yahoo.fr>
Date: Sat, 18 May 2019 20:39:12 +0200
Subject: [PATCH] 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
---
 DependencyInjection/Configuration.php    | 5 +++++
 DependencyInjection/MonologExtension.php | 3 +++
 Resources/config/schema/monolog-1.0.xsd  | 7 +++++++
 3 files changed, 15 insertions(+)

diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index 48d789a5..d49964b1 100644
--- a/DependencyInjection/Configuration.php
+++ b/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
  *
  * - socket:
  *   - connection_string: string
@@ -594,6 +595,10 @@ 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()
diff --git a/DependencyInjection/MonologExtension.php b/DependencyInjection/MonologExtension.php
index 285e9b81..500a041b 100644
--- a/DependencyInjection/MonologExtension.php
+++ b/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':
diff --git a/Resources/config/schema/monolog-1.0.xsd b/Resources/config/schema/monolog-1.0.xsd
index cf0eac87..6c23e93a 100644
--- a/Resources/config/schema/monolog-1.0.xsd
+++ b/Resources/config/schema/monolog-1.0.xsd
@@ -88,6 +88,7 @@
         <xsd:attribute name="content-type" type="xsd:string" />
         <xsd:attribute name="webhook-url" type="xsd:string" />
         <xsd:attribute name="slack-team" type="xsd:string" />
+        <xsd:attribute name="headers" type="headers" />
     </xsd:complexType>
 
     <xsd:simpleType name="level">
@@ -186,4 +187,10 @@
         </xsd:choice>
         <xsd:attribute name="code" type="xsd:integer" />
     </xsd:complexType>
+
+    <xsd:complexType name="headers">
+        <xsd:choice minOccurs="0" maxOccurs="unbounded">
+            <xsd:element name="header" type="xsd:string" />
+        </xsd:choice>
+    </xsd:complexType>
 </xsd:schema>