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;
        }
}