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<?php |
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/* |
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* This file is part of the pixelart Swiftmailer manipulator bundle. |
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* |
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* (c) pixelart GmbH |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Pixelart\Bundle\SwiftmailerManipulatorBundle\Swift\Plugins; |
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use Swift_Events_SendEvent; |
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use Symfony\Bundle\FrameworkBundle\Templating\EngineInterface; |
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/** |
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* Allows manipulations of messages on-the-fly. |
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*/ |
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final class ManipulatorPlugin implements \Swift_Events_SendListener |
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{ |
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/** |
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* @var EngineInterface |
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*/ |
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private $templating; |
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/** |
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* @var string |
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*/ |
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private $prependSubject; |
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/** |
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* @var string |
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*/ |
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private $prependBodyTemplate; |
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/** |
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* @var string The original subject before manipulations |
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*/ |
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private $originalSubject; |
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/** |
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* @var string The original body before manipulations |
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*/ |
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private $originalBody; |
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/** |
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* @var \Swift_Mime_Message The message that was last replaced |
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*/ |
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private $lastMessage; |
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/** |
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* @param EngineInterface $templating |
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* @param string $prependSubject |
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* @param string $prependBodyTemplate |
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*/ |
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public function __construct(EngineInterface $templating, $prependSubject, $prependBodyTemplate) |
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{ |
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$this->templating = $templating; |
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$this->prependSubject = $prependSubject; |
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$this->prependBodyTemplate = $prependBodyTemplate; |
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} |
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public function beforeSendPerformed(\Swift_Events_SendEvent $event) |
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{ |
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$message = $event->getMessage(); |
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$this->restoreMessage($message); |
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$this->prependSubject($message); |
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$this->prependBodyWithTemplate($message); |
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$this->lastMessage = $message; |
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} |
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/** |
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* @param Swift_Events_SendEvent $event |
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*/ |
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public function sendPerformed(Swift_Events_SendEvent $event) |
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{ |
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$this->restoreMessage($event->getMessage()); |
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} |
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/** |
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* @param \Swift_Mime_Message $message |
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*/ |
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private function prependSubject(\Swift_Mime_Message $message) |
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{ |
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if (null !== $this->prependSubject) { |
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$this->originalSubject = $message->getSubject(); |
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$message->setSubject(sprintf( |
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'%s %s', |
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$this->prependSubject, |
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$this->originalSubject |
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)); |
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} |
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} |
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/** |
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* @param \Swift_Mime_Message $message |
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*/ |
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private function prependBodyWithTemplate(\Swift_Mime_Message $message) |
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{ |
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if (null !== $this->prependBodyTemplate) { |
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$this->originalBody = $message->getBody(); |
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$message->setBody(sprintf( |
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"%s\n\n---------------------------------------------------------------------------\n\n%s", |
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$this->templating->render($this->prependBodyTemplate), |
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$this->originalBody |
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)); |
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} |
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} |
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/** |
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* Restore a changed message back to its original state. |
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* |
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* @param \Swift_Mime_Message $message |
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*/ |
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private function restoreMessage(\Swift_Mime_Message $message) |
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{ |
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if ($this->lastMessage === $message) { |
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if (null !== $this->originalSubject) { |
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$message->setSubject($this->originalSubject); |
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$this->originalSubject = null; |
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} |
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if (null !== $this->originalBody) { |
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$message->setBody($this->originalBody); |
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$this->originalBody = null; |
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} |
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$this->lastMessage = null; |
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} |
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} |
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} |
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pixelart /
swiftmailer-manipulator-bundle
