Send a notification to slack when a visitor is detected on Envoy.

slack.php

<?php

if ($_SERVER['REQUEST_METHOD'] != 'POST') {
  print 'This script should be requested by POST method.';
  exit;
}


$LOG_FILE = dirname(__FILE__).'/hook.txt';

$body = file_get_contents('php://input');

if (!$body) { throw new Exception('input is not found'); }

$payload = json_decode($body, true);


# log
file_put_contents($LOG_FILE, date("[Y-m-d H:i:s]")." ".print_r($payload,1)."\n", FILE_APPEND|LOCK_EX);



$url = $_GET['slack_webhook_url'];


$rows = array();
  foreach ($payload['payload']['attributes']['user-data'] as $array) {
  $rows[] = (array('title' => $array['field'], 'value' => $array['value']));
}

$rows[] = (array('title' => '訪問時間', 'value' => $payload['payload']['attributes']['signed-in-at']));

$message = [
  'username' => 'neo-envoy',
  'text' => sprintf('%s 様が%s %s の受付でお待ちです。',
  $payload['payload']['attributes']['full-name'],
  $payload['meta']['company']['attributes']['name'],
  $payload['meta']['location']['attributes']['name']
  ),
  'attachments' => [
    [
      'text' => $payload['payload']['attributes']['full-name'],
      'color' => 'good',
      'fields' => $rows
    ],
  ]
];


if ($payload['payload']['attributes']['host']) {
  $message['attachments'][] =
    [
      'text' => '訪問先',
      'color' => 'warning',
      'fields' => [
        [
          'title' => $payload['payload']['attributes']['host'],
          'value' => $payload['payload']['attributes']['host-email'],
        ],
      ]
    ];

}

$ch = curl_init();
$options = [
    CURLOPT_URL => $url,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_SSL_VERIFYPEER => false,
    CURLOPT_POST => true,
    CURLOPT_POSTFIELDS => http_build_query([
        'payload' => json_encode($message)
    ])
];
curl_setopt_array($ch, $options);
curl_exec($ch);
curl_close($ch);