service.php

<?php
error_reporting(0);



#####################
### CONFIG OF BOT ###
#####################
define('DEBUG_FILE_NAME', ''); // if you need read debug log, you should write unique log name
define('CLIENT_ID', ''); // like 'app.67efrrt2990977.85678329' or 'local.57062d3061fc71.97850406' - This code should take in a partner's site, needed only if you want to write a message from Bot at any time without initialization by the user
define('CLIENT_SECRET', ''); // like '8bb00435c88aaa3028a0d44320d60339' - TThis code should take in a partner's site, needed only if you want to write a message from Bot at any time without initialization by the user
#####################




writeToLog($_REQUEST, 'ImBot Event Query');

$appsConfig = Array();
if (file_exists(__DIR__.'/config.php'))
	include(__DIR__.'/config.php');

// receive event "new message"
if ($_REQUEST['event'] == 'ONIMBOTMESSAGEADD')
{
	// check the event - authorize this event or not
	if (!isset($appsConfig[$_REQUEST['auth']['application_token']]))
		return false;

	// write debug log
	writeToLog($_REQUEST['data'], 'ImBot Event message add');
}
// receive event "update message"
else if ($_REQUEST['event'] == 'ONIMBOTMESSAGEUPDATE')
{
	// check the event - authorize this event or not
	if (!isset($appsConfig[$_REQUEST['auth']['application_token']]))
		return false;

	// write debug log
	writeToLog($_REQUEST['data'], 'ImBot Event message add');
}
// receive event "delete message"
else if ($_REQUEST['event'] == 'ONIMBOTMESSAGEDELETE')
{
	// check the event - authorize this event or not
	if (!isset($appsConfig[$_REQUEST['auth']['application_token']]))
		return false;

	// write debug log
	writeToLog($_REQUEST['data'], 'ImBot Event message add');
}
// receive event "open private dialog with bot" or "join bot to group chat"
else if ($_REQUEST['event'] == 'ONIMBOTJOINCHAT')
{
	// check the event - authorize this event or not
	if (!isset($appsConfig[$_REQUEST['auth']['application_token']]))
		return false;

	// write debug log
	writeToLog($_REQUEST['data'], 'ImBot Event join chat');
}
// receive event "delete chat-bot"
else if ($_REQUEST['event'] == 'ONIMBOTDELETE')
{
	// check the event - authorize this event or not
	if (!isset($appsConfig[$_REQUEST['auth']['application_token']]))
		return false;

	// unset application variables
	unset($appsConfig[$_REQUEST['auth']['application_token']]);

	// save params
	saveParams($appsConfig);

	// write debug log
	writeToLog($_REQUEST['event'], 'ImBot unregister');
}
// receive event "Application install"
else if ($_REQUEST['event'] == 'ONAPPINSTALL')
{
	// handler for events
	$handlerBackUrl = ($_SERVER['SERVER_PORT']==443||$_SERVER["HTTPS"]=="on"? 'https': 'http')."://".$_SERVER['SERVER_NAME'].(in_array($_SERVER['SERVER_PORT'], Array(80, 443))?'':':'.$_SERVER['SERVER_PORT']).$_SERVER['SCRIPT_NAME'];

	// If your application supports different localizations
	// use $_REQUEST['data']['LANGUAGE_ID'] to load correct localization

	// register new bot
	$result = restCommand('imbot.register', Array(
		'CODE' => 'servicebot',
		'TYPE' => 'S',
		'EVENT_MESSAGE_ADD' => $handlerBackUrl,
		'EVENT_MESSAGE_UPDATE' => $handlerBackUrl,
		'EVENT_MESSAGE_DELETE' => $handlerBackUrl,
		'EVENT_WELCOME_MESSAGE' => $handlerBackUrl,
		'EVENT_BOT_DELETE' => $handlerBackUrl,
		'PROPERTIES' => Array(
			'NAME' => 'ServiceBot '.(count($appsConfig)+1),
			'COLOR' => 'GREEN',
			'EMAIL' => 'test@test.ru',
			'PERSONAL_BIRTHDAY' => '2016-03-11',
			'WORK_POSITION' => 'My first service bot',
			'PERSONAL_WWW' => 'http://bitrix24.com',
			'PERSONAL_GENDER' => 'M',
			'PERSONAL_PHOTO' => base64_encode(file_get_contents(__DIR__.'/avatar.png')),
		)
	), $_REQUEST["auth"]);
	$botId = $result['result'];

	$result = restCommand('event.bind', Array(
		'EVENT' => 'OnAppUpdate',
		'HANDLER' => $handlerBackUrl
	), $_REQUEST["auth"]);

	// save params
	$appsConfig[$_REQUEST['auth']['application_token']] = Array(
		'BOT_ID' => $botId,
		'COMMAND_ECHO' => $commandEcho,
		'COMMAND_HELP' => $commandHelp,
		'COMMAND_LIST' => $commandList,
		'LANGUAGE_ID' => $_REQUEST['data']['LANGUAGE_ID'],
		'AUTH' => $_REQUEST['auth'],
	);
	saveParams($appsConfig);

	// write debug log
	writeToLog(Array($botId, $commandEcho, $commandHelp, $commandList), 'ImBot register');
}
// receive event "Application install"
else if ($_REQUEST['event'] == 'ONAPPUPDATE')
{
	// check the event - authorize this event or not
	if (!isset($appsConfig[$_REQUEST['auth']['application_token']]))
		return false;

	if ($_REQUEST['data']['VERSION'] == 2)
	{
		// Some logic in update event for VERSION 2
		// You can execute any method RestAPI, BotAPI or ChatAPI, for example delete or add a new command to the bot
		/*
		$result = restCommand('...', Array(
			'...' => '...',
		), $_REQUEST["auth"]);
		*/

		/*
		For example delete "Echo" command:

		$result = restCommand('imbot.command.unregister', Array(
			'COMMAND_ID' => $appsConfig[$_REQUEST['auth']['application_token']]['COMMAND_ECHO'],
		), $_REQUEST["auth"]);
		*/
	}
	else
	{
		// send answer message
		$result = restCommand('app.info', array(), $_REQUEST["auth"]);
	}

	// write debug log
	writeToLog($result, 'ImBot update event');
}

/**
 * Save application configuration.
 * WARNING: this method is only created for demonstration, never store config like this
 *
 * @param $params
 * @return bool
 */
function saveParams($params)
{
	$config = "<?php\n";
	$config .= "\$appsConfig = ".var_export($params, true).";\n";
	$config .= "?>";

	file_put_contents(__DIR__."/config.php", $config);

	return true;
}

/**
 * Send rest query to Bitrix24.
 *
 * @param $method - Rest method, ex: methods
 * @param array $params - Method params, ex: Array()
 * @param array $auth - Authorize data, received from event
 * @param boolean $authRefresh - If authorize is expired, refresh token
 * @return mixed
 */
function restCommand($method, array $params = Array(), array $auth = Array(), $authRefresh = true)
{
	$queryUrl = $auth["client_endpoint"].$method;
	$queryData = http_build_query(array_merge($params, array("auth" => $auth["access_token"])));

	writeToLog(Array('URL' => $queryUrl, 'PARAMS' => array_merge($params, array("auth" => $auth["access_token"]))), 'ImBot send data');

	$curl = curl_init();

	curl_setopt_array($curl, array(
		CURLOPT_POST => 1,
		CURLOPT_HEADER => 0,
		CURLOPT_RETURNTRANSFER => 1,
		CURLOPT_SSL_VERIFYPEER => 1,
		CURLOPT_URL => $queryUrl,
		CURLOPT_POSTFIELDS => $queryData,
	));

	$result = curl_exec($curl);
	curl_close($curl);

	$result = json_decode($result, 1);

	if ($authRefresh && isset($result['error']) && in_array($result['error'], array('expired_token', 'invalid_token')))
	{
		$auth = restAuth($auth);
		if ($auth)
		{
			$result = restCommand($method, $params, $auth, false);
		}
	}

	return $result;
}

/**
 * Get new authorize data if you authorize is expire.
 *
 * @param array $auth - Authorize data, received from event
 * @return bool|mixed
 */
function restAuth($auth)
{
	if (!CLIENT_ID || !CLIENT_SECRET)
		return false;

	if(!isset($auth['refresh_token']))
		return false;

	$queryUrl = 'https://oauth.bitrix.info/oauth/token/';
	$queryData = http_build_query($queryParams = array(
		'grant_type' => 'refresh_token',
		'client_id' => CLIENT_ID,
		'client_secret' => CLIENT_SECRET,
		'refresh_token' => $auth['refresh_token'],
	));

	writeToLog(Array('URL' => $queryUrl, 'PARAMS' => $queryParams), 'ImBot request auth data');

	$curl = curl_init();

	curl_setopt_array($curl, array(
		CURLOPT_HEADER => 0,
		CURLOPT_RETURNTRANSFER => 1,
		CURLOPT_URL => $queryUrl.'?'.$queryData,
	));

	$result = curl_exec($curl);
	curl_close($curl);

	$result = json_decode($result, 1);
	if (!isset($result['error']))
	{
		$appsConfig = Array();
		if (file_exists(__DIR__.'/config.php'))
			include(__DIR__.'/config.php');

		$result['application_token'] = $auth['application_token'];
		$appsConfig[$auth['application_token']]['AUTH'] = $result;
		saveParams($appsConfig);
	}
	else
	{
		$result = false;
	}

	return $result;
}

/**
 * Write data to log file. (by default disabled)
 * WARNING: this method is only created for demonstration, never store log file in public folder
 *
 * @param mixed $data
 * @param string $title
 * @return bool
 */
function writeToLog($data, $title = '')
{
	if (!DEBUG_FILE_NAME)
		return false;

	$log = "\n------------------------\n";
	$log .= date("Y.m.d G:i:s")."\n";
	$log .= (strlen($title) > 0 ? $title : 'DEBUG')."\n";
	$log .= print_r($data, 1);
	$log .= "\n------------------------\n";

	file_put_contents(__DIR__."/".DEBUG_FILE_NAME, $log, FILE_APPEND);

	return true;
}