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<?php
/*
* This file is part of the Monolog package.
*
* (c) Jordi Boggiano <j.boggiano@seld.be>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Monolog\Handler;
use Monolog\Logger;
/**
* Sends notifications through the hipchat api to a hipchat room
*
* Notes:
* API token - HipChat API token
* Room - HipChat Room Id or name, where messages are sent
* Name - Name used to send the message (from)
* notify - Should the message trigger a notification in the clients
* version - The API version to use (HipChatHandler::API_V1 | HipChatHandler::API_V2)
*
* @author Rafael Dohms <rafael@doh.ms>
* @see https://www.hipchat.com/docs/api
*/
class HipChatHandler extends SocketHandler
{
/**
* Use API version 1
*/
const API_V1 = 'v1';
/**
* Use API version v2
*/
const API_V2 = 'v2';
/**
* The maximum allowed length for the name used in the "from" field.
*/
const MAXIMUM_NAME_LENGTH = 15;
/**
* The maximum allowed length for the message.
*/
const MAXIMUM_MESSAGE_LENGTH = 9500;
/**
* @var string
*/
private $token;
/**
* @var string
*/
private $room;
/**
* @var string
*/
private $name;
/**
* @var bool
*/
private $notify;
/**
* @var string
*/
private $format;
/**
* @var string
*/
private $host;
/**
* @var string
*/
private $version;
/**
* @param string $token HipChat API Token
* @param string $room The room that should be alerted of the message (Id or Name)
* @param string $name Name used in the "from" field. Not used for v2
* @param bool $notify Trigger a notification in clients or not
* @param int $level The minimum logging level at which this handler will be triggered
* @param bool $bubble Whether the messages that are handled can bubble up the stack or not
* @param bool $useSSL Whether to connect via SSL.
* @param string $format The format of the messages (default to text, can be set to html if you have html in the messages)
* @param string $host The HipChat server hostname.
* @param string $version The HipChat API version (default HipChatHandler::API_V1)
*/
public function __construct($token, $room, $name = 'Monolog', $notify = false, $level = Logger::CRITICAL, $bubble = true, $useSSL = true, $format = 'text', $host = 'api.hipchat.com', $version = self::API_V1)
{
if ($version == self::API_V1 && !$this->validateStringLength($name, static::MAXIMUM_NAME_LENGTH)) {
throw new \InvalidArgumentException('The supplied name is too long. HipChat\'s v1 API supports names up to 15 UTF-8 characters.');
}
$connectionString = $useSSL ? 'ssl://'.$host.':443' : $host.':80';
parent::__construct($connectionString, $level, $bubble);
$this->token = $token;
$this->name = $name;
$this->notify = $notify;
$this->room = $room;
$this->format = $format;
$this->host = $host;
$this->version = $version;
}
/**
* {@inheritdoc}
*
* @param array $record
* @return string
*/
protected function generateDataStream($record)
{
$content = $this->buildContent($record);
return $this->buildHeader($content) . $content;
}
/**
* Builds the body of API call
*
* @param array $record
* @return string
*/
private function buildContent($record)
{
$dataArray = array(
'notify' => $this->version == self::API_V1 ?
($this->notify ? 1 : 0) :
($this->notify ? 'true' : 'false'),
'message' => $record['formatted'],
'message_format' => $this->format,
'color' => $this->getAlertColor($record['level']),
);
// if we are using the legacy API then we need to send some additional information
if ($this->version == self::API_V1) {
$dataArray['room_id'] = $this->room;
$dataArray['from'] = $this->name;
}
return http_build_query($dataArray);
}
/**
* Builds the header of the API Call
*
* @param string $content
* @return string
*/
private function buildHeader($content)
{
if ($this->version == self::API_V1) {
$header = "POST /v1/rooms/message?format=json&auth_token={$this->token} HTTP/1.1\r\n";
} else {
// needed for rooms with special (spaces, etc) characters in the name
$room = rawurlencode($this->room);
$header = "POST /v2/room/{$room}/notification?auth_token={$this->token} HTTP/1.1\r\n";
}
$header .= "Host: {$this->host}\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: " . strlen($content) . "\r\n";
$header .= "\r\n";
return $header;
}
/**
* Assigns a color to each level of log records.
*
* @param integer $level
* @return string
*/
protected function getAlertColor($level)
{
switch (true) {
case $level >= Logger::ERROR:
return 'red';
case $level >= Logger::WARNING:
return 'yellow';
case $level >= Logger::INFO:
return 'green';
case $level == Logger::DEBUG:
return 'gray';
default:
return 'yellow';
}
}
/**
* {@inheritdoc}
*
* @param array $record
*/
protected function write(array $record)
{
parent::write($record);
$this->closeSocket();
}
/**
* {@inheritdoc}
*/
public function handleBatch(array $records)
{
if (count($records) == 0) {
return true;
}
$batchRecords = $this->combineRecords($records);
$handled = false;
foreach ($batchRecords as $batchRecord) {
if ($this->isHandling($batchRecord)) {
$this->write($batchRecord);
$handled = true;
}
}
if (!$handled) {
return false;
}
return false === $this->bubble;
}
/**
* Combines multiple records into one. Error level of the combined record
* will be the highest level from the given records. Datetime will be taken
* from the first record.
*
* @param $records
* @return array
*/
private function combineRecords($records)
{
$batchRecord = null;
$batchRecords = array();
$messages = array();
$formattedMessages = array();
$level = 0;
$levelName = null;
$datetime = null;
foreach ($records as $record) {
$record = $this->processRecord($record);
if ($record['level'] > $level) {
$level = $record['level'];
$levelName = $record['level_name'];
}
if (null === $datetime) {
$datetime = $record['datetime'];
}
$messages[] = $record['message'];
$messageStr = implode(PHP_EOL, $messages);
$formattedMessages[] = $this->getFormatter()->format($record);
$formattedMessageStr = implode('', $formattedMessages);
$batchRecord = array(
'message' => $messageStr,
'formatted' => $formattedMessageStr,
'context' => array(),
'extra' => array(),
);
if (!$this->validateStringLength($batchRecord['formatted'], static::MAXIMUM_MESSAGE_LENGTH)) {
// Pop the last message and implode the remaining messages
$lastMessage = array_pop($messages);
$lastFormattedMessage = array_pop($formattedMessages);
$batchRecord['message'] = implode(PHP_EOL, $messages);
$batchRecord['formatted'] = implode('', $formattedMessages);
$batchRecords[] = $batchRecord;
$messages = array($lastMessage);
$formattedMessages = array($lastFormattedMessage);
$batchRecord = null;
}
}
if (null !== $batchRecord) {
$batchRecords[] = $batchRecord;
}
// Set the max level and datetime for all records
foreach ($batchRecords as &$batchRecord) {
$batchRecord = array_merge(
$batchRecord,
array(
'level' => $level,
'level_name' => $levelName,
'datetime' => $datetime
)
);
}
return $batchRecords;
}
/**
* Validates the length of a string.
*
* If the `mb_strlen()` function is available, it will use that, as HipChat
* allows UTF-8 characters. Otherwise, it will fall back to `strlen()`.
*
* Note that this might cause false failures in the specific case of using
* a valid name with less than 16 characters, but 16 or more bytes, on a
* system where `mb_strlen()` is unavailable.
*
* @param string $str
* @param int $length
*
* @return bool
*/
private function validateStringLength($str, $length)
{
if (function_exists('mb_strlen')) {
return (mb_strlen($str) <= $length);
}
return (strlen($str) <= $length);
}
}