mattermost.php

<?php
require_once(INCLUDE_DIR.'class.signal.php');
require_once(INCLUDE_DIR.'class.plugin.php');
require_once('config.php');
class MattermostPlugin extends Plugin {
    var $config_class = "MattermostPluginConfig";
    
    function bootstrap()
    {
        Signal::connect('ticket.created', array($this, 'onTicketCreated'), 'Ticket');    
    }
    function onTicketCreated($ticket){
        try {
            global $ost;
	    $title = $ticket->getSubject() ?: 'No subject';
            $body = $ticket->getLastMessage()->getMessage() ?: 'No content';
	    $body = str_replace('<p>', '', $body);
	    $body = str_replace('</p>', '<br />' , $body);
	    $breaks = array("<br />","<br>","<br/>");
	    $body = str_ireplace($breaks, "\n", $body);
	    $body = strip_tags($body);
        $notify = $this->getConfig()->get('mattermost-notify-to');


            $payload = array(
                        'attachments' =>
                            array (
                                array ( 
                                    'pretext' => "New Ticket <" . $ost->getConfig()->getUrl() . "scp/tickets.php?id=" . $ticket->getId() . "|#" . $ticket->getNumber() . "> created, " . $notify . ", pay your attention!",
                                    'fallback' => "New Ticket <" . $ost->getConfig()->getUrl() . "scp/tickets.php?id=" . $ticket->getId() . "|#" . $ticket->getNumber() . "> created, " . $notify . ", pay your attention!",
                                    'color' => "#D00000",
                                    'fields' => 
                                    array(
                                        array (
                                            'title' => $title,
					                        'value' => "**From:** " . $ticket->getName() . " (" . $ticket->getEmail() . ")\n**Message:** " . $body, 
                                            'short' => False,
                                        ),
                                    ),
                                ),
                            ),
                        );
                        
            $data_string = utf8_encode(json_encode($payload));
            $url = $this->getConfig()->get('mattermost-webhook-url');
            $ch = curl_init($url);
            curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
            curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            curl_setopt($ch, CURLOPT_HTTPHEADER, array(
                'Content-Type: application/json',
                'Content-Length: ' . strlen($data_string))
            );
            
            if(curl_exec($ch) === false){
                throw new Exception($url . ' - ' . curl_error($ch));
            } else {
                $statusCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);

                if($statusCode != '200'){
                    throw new Exception($url . ' Http code: ' . $statusCode);
                }
            }
            curl_close($ch);
        } catch(Exception $e) {
            error_log('Error posting to Mattermost. '. $e->getMessage());
        }
    }
}