class.ilSendMailActivity.php

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<?php
/* Copyright (c) 1998-2016 ILIAS open source, Extended GPL, see docs/LICENSE */

require_once './Services/WorkflowEngine/interfaces/ilActivity.php';
require_once './Services/WorkflowEngine/interfaces/ilNode.php';

class ilSendMailActivity implements ilActivity, ilWorkflowEngineElement
{
    private $context;

    private $message_name;

    protected $name;

    private $parameters;

    private $outputs;

    public function __construct(ilNode $a_context)
    {
        $this->context = $a_context;
    }

    public function execute()
    {
        $workflow = $this->getContext()->getContext();
        $definitions = $workflow->getInstanceVars();

        $recipient = '';
        $subject = '';
        foreach ($this->parameters as $parameter) {
            foreach ($definitions as $definition) {
                if ($definition['id'] = $parameter) {
                    switch (strtolower($definition['role'])) {
                        case 'emailaddress':
                            $recipient = $definition['value'];
                            break;
                        case 'subject':
                            $subject = $definition['value'];
                            break;
                    }
                }
            }
        }

        $mail_data = $this->context->getContext()->getMessageDefinition($this->message_name);
        $mail_text = $this->decodeMessageText($mail_data['content']);
        $mail_text = $this->processPlaceholders($mail_text);

        require_once './Services/WorkflowEngine/classes/activities/class.ilWorkflowEngineMailNotification.php';
        $mail = new ilWorkflowEngineMailNotification();
        $mail->setSubjectText($subject);
        $mail->setBodyText($mail_text);

        $mail->send($recipient);
    }

    public function getContext()
    {
        return $this->context;
    }

    public function setName($name)
    {
        $this->name = $name;
    }

    public function getName()
    {
        return $this->name;
    }

    public function getMessageName()
    {
        return $this->message_name;
    }

    public function setMessageName($message_name)
    {
        $this->message_name = $message_name;
    }

    public function getParameters()
    {
        return $this->parameters;
    }

    public function setParameters($parameters)
    {
        $this->parameters = $parameters;
    }

    public function getOutputs()
    {
        return $this->outputs;
    }

    public function setOutputs($outputs)
    {
        $this->outputs = $outputs;
    }

    public function decodeMessageText($message_text)
    {
        return base64_decode($message_text);
    }

    public function processPlaceholders($message_text)
    {
        $matches = array();
        preg_match_all('/\[(.*?)\]/', $message_text, $matches, PREG_PATTERN_ORDER);

        foreach ($matches[0] as $match) {
            $placeholder = substr($match, 1, strlen($match) - 2);

            $handled = false;
            if (strtolower(substr($placeholder, 0, strlen('EVENTLINK'))) == 'eventlink') {
                $handled = true;
                $content = $this->getEventLink($match);
            }

            if (!$handled) {
                $content = $this->context->getContext()->getInstanceVarById($placeholder);
            }

            if (strlen($content)) {
                $message_text = str_replace($match, $content, $message_text);
            }
        }
        return $message_text;
    }

    public function getEventLink($eventlink_string)
    {
        $type = substr($eventlink_string, 1, strpos($eventlink_string, ' ') - 1);
        $params = substr($eventlink_string, strpos($eventlink_string, ' ') + 1, -1);

        $matches = array();
        preg_match_all('/\{{(.*?)\}}/', $params, $matches, PREG_PATTERN_ORDER);
        foreach ($matches[1] as $match) {
            if ($match == 'THIS:WFID') {
                $params = str_replace('{{' . $match . '}}', $this->getContext()->getContext()->getDbId(), $params);
            }
        }
        $pieces = explode(':', $params);
        global $DIC;
        $ilias = $DIC['ilias'];

        $address = ilUtil::_getHttpPath() . '/goto.php?target=wfe_WF'
            . $pieces[0] . 'EVT' . $pieces[1] . '&client_id=' . $ilias->getClientId();

        return $address;
    }
}