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phab/src/applications/metamta/storage/mail/PhabricatorMetaMTAMail.php
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PhabricatorMetaMTAMail.php
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<?php
/*
* Copyright 2011 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* See #394445 for an explanation of why this thing even exists.
*/
class PhabricatorMetaMTAMail extends PhabricatorMetaMTADAO {
const STATUS_QUEUE = 'queued';
const STATUS_SENT = 'sent';
const STATUS_FAIL = 'fail';
const MAX_RETRIES = 250;
const RETRY_DELAY = 5;
protected $parameters;
protected $status;
protected $message;
protected $retryCount;
protected $nextRetry;
protected $relatedPHID;
public function __construct() {
$this->status = self::STATUS_QUEUE;
$this->retryCount = 0;
$this->nextRetry = time();
$this->parameters = array();
parent::__construct();
}
public function getConfiguration() {
return array(
self::CONFIG_SERIALIZATION => array(
'parameters' => self::SERIALIZATION_JSON,
),
) + parent::getConfiguration();
}
protected function setParam($param, $value) {
$this->parameters[$param] = $value;
return $this;
}
protected function getParam($param) {
return idx($this->parameters, $param);
}
public function getSubject() {
return $this->getParam('subject');
}
public function addTos(array $phids) {
$this->setParam('to', $phids);
return $this;
}
public function addCCs(array $phids) {
$this->setParam('cc', $phids);
return $this;
}
public function addHeader($name, $value) {
$this->parameters['headers'][$name] = $value;
return $this;
}
public function setFrom($from) {
$this->setParam('from', $from);
return $this;
}
public function setReplyTo($reply_to) {
$this->setParam('reply-to', $reply_to);
return $this;
}
public function setSubject($subject) {
$this->setParam('subject', $subject);
return $this;
}
public function setBody($body) {
$this->setParam('body', $body);
return $this;
}
public function setIsHTML($html) {
$this->setParam('is-html', $html);
return $this;
}
public function getSimulatedFailureCount() {
return nonempty($this->getParam('simulated-failures'), 0);
}
public function setSimulatedFailureCount($count) {
$this->setParam('simulated-failures', $count);
return $this;
}
public function save() {
$try_send = (PhabricatorEnv::getEnvConfig('metamta.send-immediately')) &&
(!$this->getID());
$ret = parent::save();
if ($try_send) {
$class_name = PhabricatorEnv::getEnvConfig('metamta.mail-adapter');
PhutilSymbolLoader::loadClass($class_name);
$mailer = newv($class_name, array());
$this->sendNow($force_send = false, $mailer);
}
return $ret;
}
public function sendNow(
$force_send = false,
PhabricatorMailImplementationAdapter $mailer) {
if (!$force_send) {
if ($this->getStatus() != self::STATUS_QUEUE) {
throw new Exception("Trying to send an already-sent mail!");
}
if (time() < $this->getNextRetry()) {
throw new Exception("Trying to send an email before next retry!");
}
}
try {
$parameters = $this->parameters;
$phids = array();
foreach ($parameters as $key => $value) {
switch ($key) {
case 'from':
case 'to':
case 'cc':
if (!is_array($value)) {
$value = array($value);
}
foreach (array_filter($value) as $phid) {
$phids[] = $phid;
}
break;
}
}
$handles = id(new PhabricatorObjectHandleData($phids))
->loadHandles();
$params = $this->parameters;
$default = PhabricatorEnv::getEnvConfig('metamta.default-address');
if (empty($params['from'])) {
$mailer->setFrom($default);
} else if (!PhabricatorEnv::getEnvConfig('metamta.can-send-as-user')) {
$from = $params['from'];
if (empty($params['reply-to'])) {
$params['reply-to'] = $handles[$from]->getEmail();
}
$mailer->setFrom($default);
unset($params['from']);
}
foreach ($params as $key => $value) {
switch ($key) {
case 'from':
$mailer->setFrom($handles[$value]->getEmail());
break;
case 'reply-to':
$mailer->addReplyTo($value);
break;
case 'to':
$emails = array();
foreach ($value as $phid) {
$emails[] = $handles[$phid]->getEmail();
}
$mailer->addTos($emails);
break;
case 'cc':
$emails = array();
foreach ($value as $phid) {
$emails[] = $handles[$phid]->getEmail();
}
$mailer->addCCs($emails);
break;
case 'headers':
foreach ($value as $header_key => $header_value) {
$mailer->addHeader($header_key, $header_value);
}
break;
case 'body':
$mailer->setBody($value);
break;
case 'subject':
$mailer->setSubject($value);
break;
case 'is-html':
if ($value) {
$mailer->setIsHTML(true);
}
break;
default:
// Just discard.
}
}
$mailer->addHeader('X-Mail-Transport-Agent', 'MetaMTA');
} catch (Exception $ex) {
$this->setStatus(self::STATUS_FAIL);
$this->setMessage($ex->getMessage());
$this->save();
return;
}
if ($this->getRetryCount() < $this->getSimulatedFailureCount()) {
$ok = false;
$error = 'Simulated failure.';
} else {
try {
$ok = $mailer->send();
$error = null;
} catch (Exception $ex) {
$ok = false;
$error = $ex->getMessage();
}
}
if (!$ok) {
$this->setMessage($error);
if ($this->getRetryCount() > self::MAX_RETRIES) {
$this->setStatus(self::STATUS_FAIL);
} else {
$this->setRetryCount($this->getRetryCount() + 1);
$next_retry = time() + ($this->getRetryCount() * self::RETRY_DELAY);
$this->setNextRetry($next_retry);
}
} else {
$this->setStatus(self::STATUS_SENT);
}
$this->save();
}
public static function getReadableStatus($status_code) {
static $readable = array(
self::STATUS_QUEUE => "Queued for Delivery",
self::STATUS_FAIL => "Delivery Failed",
self::STATUS_SENT => "Sent",
);
$status_code = coalesce($status_code, '?');
return idx($readable, $status_code, $status_code);
}
}
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