app.php

#!/usr/bin/php -q
<?php

//debug
//$mail = file_get_contents("/tmp/trello2slack/record.txt",true);

require_once("Mail/mimeDecode.php");


if (!STDIN) exit("ERROR");

$mail = "";
while(!feof(STDIN)) {
  $mail .= fgets(STDIN);
}

$params['include_bodies'] = true;
$params['decode_bodies']  = true;
$params['decode_headers'] = true;
$decoder   = new Mail_mimeDecode($mail);
$structure = $decoder->decode($params);

// elements
//////////////////////////////////////////////////////////////////////////////
$from      = $structure -> headers['from'];
$to        = $structure -> headers['delivered-to'];
$subject   = $structure -> headers['subject'];
$date      = $structure -> headers['date'];
$textObj   = explode(" is due ",explode("\n",$structure -> parts[0] -> {'body'})[4]);
$task      = explode(" (",explode(" on ",$textObj[0])[0]);
$taskTitle = $task[0];
$taskUrl   = rtrim($task[1],")");
$dueDate   = $textObj[1]; 
//////////////////////////////////////////////////////////////////////////////

// read info.taxt
$slackInfo = explode("\n",file_get_contents(dirname(__FILE__)."/info.txt",true));
$domain    = $slackInfo[0];
$token     = $slackInfo[1];
$channel   = $slackInfo[2];
$botName   = $slackInfo[3];
$iconEmoji = $slackInfo[4];

$text = ">>> Task: *<$taskUrl|$taskTitle>* Due Date: *$dueDate*";
$text = trim($text);
exec("curl -X POST  --data-urlencode 'payload={\"channel\": \"$channel\", \"username\": \"$botName\", \"text\": \"$text\", \"icon_emoji\": \"$iconEmoji\"}' https://$domain.slack.com/services/hooks/incoming-webhook?token=$token");