PHP incoming matter-most web-hook handler.

matter-hook.php

<?php

/**8               MATTERMOST INCOMING WEBHOOK              8**/
/*                                                            */
/* NOTE: Use either standalone with URL parameters or include */
/* in a PHP script to naturally call the send_msg_mmst().     */
/* Returns true if the call is succesful, or whatever the     */
/* error.                                                     */
/* Includes defaults for most parameters to simplify usage.   */
/*                                                            */
/* @PARAMETER $message - Can be an Array or String. Required  */
/* If is an array, must use the following keys:               */
/*  'url' - The webhook url                                   */
/*  'user' - Override for the mmst user                       */
/*  'icon' - URL to an image to override the user icon        */
/*  'channel' - Specify a team channel to override Webhook    */
/*  default                                                   */
/*  'text' - Not required in this case. The message text.     */
/*                                                            */
/* @PARAMETER $target - Not required, set the default value   */
/* to your main webhook url.                                  */
/*                                                            */
/* @PARAMETER $userName - Not required, this will override    */
/* the channel username                                       */
/*                                                            */
/* @PARAMETER $icon - Not required, overrides the user icon.  */
/*                                                            */
/* @PARAMETER $channel - Not required, overrides the channel  */
/* the webhook outputs to.                                    */
/*                                                            */
/*^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^*/


function send_msg_mmst($message, $target = 'http://dev2:8065/hooks/ochkd3685fg5pnyff3wnjpaffw', $userName = 'Message Admin', $icon = 'http://linux3/img/mailAdmin.png', $channel = null) {
  $message_text = $message;
  $webhook = $target;
  if (is_array($message)) {
    $webhook = isset($message['url']) ? $message['url'] : $target;
    $message_text = isset($message['text']) ? $message['text'] : 'No Message Content';
    $userName = isset($message['user']) ? $message['user'] : $username;
    $icon = isset($message['icon']) ? $message['icon'] : $icon;
    $channel = isset($message['channel']) ? $message['channel'] : $channel;
  }
  $content['text'] = $message_text;
  $content['username'] = $userName;
  $content['icon_url'] = $icon;
  if (!is_null($channel)) {
    $content['channel'] = $channel;
  }
  $payload = 'payload='.json_encode($content);
  $result = exec_mmst_msg($webhook, $payload);
  if($result == 'ok') {
    return true;
  }
  else {
    return $result;
  }
}
// Just does our curl stuff.
function exec_mmst_msg($webhook_url, $webhook_payload) {
  $ch = curl_init();
  // set cURL options
  curl_setopt($ch, CURLOPT_URL, $webhook_url);
  curl_setopt($ch, CURLOPT_POST, 1);
  curl_setopt($ch, CURLOPT_POSTFIELDS, $webhook_payload);
  // enable return and execute
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  $server_output = curl_exec ($ch);
  // close connection
  curl_close($ch);
  // return the response from mattermost, either an error or "OK"
  return $server_output;
}
if(count($_GET)) {
  $mmst_msg = array(
    'text' => isset($_GET['message']) ? $_GET['message'] : null,
    'user' => isset($_GET['username']) ? $_GET['username'] : null,
    'url' => isset($_GET['target']) ? $_GET['target'] : null,
    'icon' => isset($_GET['icon']) ? $_GET['icon'] : null,
    'channel' => isset($_GET['channel']) ? $_GET['channel'] : null
  );
  send_msg_mmst($mmst_msg);
}