chatwork_api.php

<?php
header('Content-type: application/json; charset=utf-8');

$api_token = "your chatwork api token";
$room_id = "your target room id";
$url = "https://api.chatwork.com/v1/rooms/$room_id/messages";

// committer name(on github) => chatwork id
$members = array(
  'yokozawa' => '111111',
  'foo' => '222222',
  'var' => '333333', 
);

// prepare upload images to target room
// http://takashabe.hatenablog.com/entry/2014/01/18/162533 @see
$success_img_id = 'success img id';
$failure_img_id = 'failure img id';

function draw_reviewer ($members, $expect_key) {
  unset($members[$expect_key]);
  $target_key = array_rand($members, 1);
  return array($target_key, $members[$target_key]);
}

// travis payload format look this. 
// https://gist.github.com/svenfuchs/1225015

function create_message($payload, $members) {
  $title = $payload['status'] === 0 ? "にっこにこにー！" : "ヴェェェ";
  $build_url = "https://magnum.travis-ci.com/" . $payload['repository']['owner_name'] 
      . "/" . $payload['repository']['name'] . "/builds/" . $payload['id'];
  $commit_url = $payload['repository']['url'] . "/commit/" . $payload['commit'];
  $committer = $payload['committer_name'];

  if ($payload['status'] === 0) {
    list($name, $id) = draw_reviewer($members, $committer);
    $message =<<<EOF
[info][title]{$title}[/title]
あなたのbuildに、にっこにっこにー！笑顔届ける矢澤にこにー！
レビューは[To:{$id}] {$name} にお願いしちゃおうかな！
[To:{$members[$committer]}] {$committer} はレビュー後にmergeとdeployを忘れないでね！
[preview id={$success_img_id} ht=150]
[/info]
EOF;
  } else {
    $message =<<<EOF
[info][title]{$title}[/title]
build失敗しちゃったじゃない！ｲﾐﾜｶﾝﾅｲ！
[To:{$members[$committer]}] {$committer} はちゃんと確認するのよ！ﾊﾔｸｼﾅｻｲﾖ！
build_url: {$build_url}
commit_url: {$commit_url}
[preview id={failure_img_id} ht=150]
[/info]
EOF;
  }
  return $message;
}

if ('POST' === $_SERVER['REQUEST_METHOD']) {
  if (!isset($_POST['payload'])) {
    header('HTTP/1.1 400 Bad Request');
      exit;
  }
 
  $payload = json_decode($_POST['payload'], true);
  $data = array('body' => create_message($payload, $members));

  $ch = curl_init();
  curl_setopt($ch, CURLOPT_URL, $url);
  curl_setopt($ch, CURLOPT_HTTPHEADER, array('X-ChatWorkToken: ' . $api_token));
  curl_setopt($ch, CURLOPT_POST, true);
  curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data, '', '&'));
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

  $response = curl_exec($ch);
  curl_close($ch);
}