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DifferentialMail.php
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Tue, Mar 4, 15:03

DifferentialMail.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.
*/
abstract class DifferentialMail {
protected $to = array();
protected $cc = array();
protected $actorHandle;
protected $revision;
protected $comment;
protected $changesets;
protected $inlineComments;
protected $isFirstMailAboutRevision;
protected $isFirstMailToRecipients;
protected $heraldTranscriptURI;
protected $heraldRulesHeader;
protected $replyHandler;
protected $parentMessageID;
abstract protected function renderSubject();
abstract protected function renderBody();
public function setActorHandle($actor_handle) {
$this->actorHandle = $actor_handle;
return $this;
}
public function getActorHandle() {
return $this->actorHandle;
}
protected function getActorName() {
$handle = $this->getActorHandle();
if ($handle) {
return $handle->getName();
}
return '???';
}
public function setParentMessageID($parent_message_id) {
$this->parentMessageID = $parent_message_id;
return $this;
}
public function setXHeraldRulesHeader($header) {
$this->heraldRulesHeader = $header;
return $this;
}
public function send() {
$to_phids = $this->getToPHIDs();
if (!$to_phids) {
throw new Exception('No "To:" users provided!');
}
$cc_phids = $this->getCCPHIDs();
$subject = $this->buildSubject();
$body = $this->buildBody();
$attachments = $this->buildAttachments();
$template = new PhabricatorMetaMTAMail();
$actor_handle = $this->getActorHandle();
$reply_handler = $this->getReplyHandler();
if ($actor_handle) {
$template->setFrom($actor_handle->getPHID());
}
$template
->setSubject($subject)
->setBody($body)
->setIsHTML($this->shouldMarkMailAsHTML())
->setParentMessageID($this->parentMessageID)
->addHeader('Thread-Topic', $this->getRevision()->getTitle());
foreach ($attachments as $attachment) {
$template->addAttachment(
$attachment['data'],
$attachment['filename'],
$attachment['mimetype']
);
}
$template->setThreadID(
$this->getThreadID(),
$this->isFirstMailAboutRevision());
if ($this->heraldRulesHeader) {
$template->addHeader('X-Herald-Rules', $this->heraldRulesHeader);
}
$template->setRelatedPHID($this->getRevision()->getPHID());
$phids = array();
foreach ($to_phids as $phid) {
$phids[$phid] = true;
}
foreach ($cc_phids as $phid) {
$phids[$phid] = true;
}
$phids = array_keys($phids);
$handles = id(new PhabricatorObjectHandleData($phids))->loadHandles();
$mails = $reply_handler->multiplexMail(
$template,
array_select_keys($handles, $to_phids),
array_select_keys($handles, $cc_phids));
foreach ($mails as $mail) {
$mail->saveAndSend();
}
}
protected function getSubjectPrefix() {
return PhabricatorEnv::getEnvConfig('metamta.differential.subject-prefix');
}
protected function buildSubject() {
return trim($this->getSubjectPrefix().' '.$this->renderSubject());
}
protected function shouldMarkMailAsHTML() {
return false;
}
protected function buildBody() {
$body = $this->renderBody();
$reply_handler = $this->getReplyHandler();
$reply_instructions = $reply_handler->getReplyHandlerInstructions();
if ($reply_instructions) {
$body .=
"\nREPLY HANDLER ACTIONS\n".
" {$reply_instructions}\n";
}
if ($this->getHeraldTranscriptURI() && $this->isFirstMailToRecipients()) {
$manage_uri = PhabricatorEnv::getProductionURI(
'/herald/view/differential/');
$xscript_uri = $this->getHeraldTranscriptURI();
$body .= <<<EOTEXT
MANAGE HERALD DIFFERENTIAL RULES
{$manage_uri}
WHY DID I GET THIS EMAIL?
{$xscript_uri}
Tip: use the X-Herald-Rules header to filter Herald messages in your client.
EOTEXT;
}
return $body;
}
/**
* You can override this method in a subclass and return array of attachments
* to be sent with the email. Each attachment is a dictionary with 'data',
* 'filename' and 'mimetype' keys. For example:
*
* array(
* 'data' => 'some text',
* 'filename' => 'example.txt',
* 'mimetype' => 'text/plain'
* );
*/
protected function buildAttachments() {
return array();
}
public function getReplyHandler() {
if ($this->replyHandler) {
return $this->replyHandler;
}
$handler_class = PhabricatorEnv::getEnvConfig(
'metamta.differential.reply-handler');
$reply_handler = self::newReplyHandlerForRevision($this->getRevision());
$this->replyHandler = $reply_handler;
return $this->replyHandler;
}
public static function newReplyHandlerForRevision(
DifferentialRevision $revision) {
$handler_class = PhabricatorEnv::getEnvConfig(
'metamta.differential.reply-handler');
$reply_handler = newv($handler_class, array());
$reply_handler->setMailReceiver($revision);
return $reply_handler;
}
protected function formatText($text) {
$text = explode("\n", $text);
foreach ($text as &$line) {
$line = rtrim(' '.$line);
}
unset($line);
return implode("\n", $text);
}
public function setToPHIDs(array $to) {
$this->to = $this->filterContactPHIDs($to);
return $this;
}
public function setCCPHIDs(array $cc) {
$this->cc = $this->filterContactPHIDs($cc);
return $this;
}
protected function filterContactPHIDs(array $phids) {
return $phids;
// TODO: actually do this?
// Differential revisions use Subscriptions for CCs, so any arbitrary
// PHID can end up CC'd to them. Only try to actually send email PHIDs
// which have ToolsHandle types that are marked emailable. If we don't
// filter here, sending the email will fail.
/*
$handles = array();
prep(new ToolsHandleData($phids, $handles));
foreach ($handles as $phid => $handle) {
if (!$handle->isEmailable()) {
unset($handles[$phid]);
}
}
return array_keys($handles);
*/
}
protected function getToPHIDs() {
return $this->to;
}
protected function getCCPHIDs() {
return $this->cc;
}
public function setRevision($revision) {
$this->revision = $revision;
return $this;
}
public function getRevision() {
return $this->revision;
}
protected function getThreadID() {
$phid = $this->getRevision()->getPHID();
$domain = PhabricatorEnv::getEnvConfig('metamta.domain');
return "<differential-rev-{$phid}-req@{$domain}>";
}
public function setComment($comment) {
$this->comment = $comment;
return $this;
}
public function getComment() {
return $this->comment;
}
public function setChangesets($changesets) {
$this->changesets = $changesets;
return $this;
}
public function getChangesets() {
return $this->changesets;
}
public function setInlineComments(array $inline_comments) {
$this->inlineComments = $inline_comments;
return $this;
}
public function getInlineComments() {
return $this->inlineComments;
}
public function renderRevisionDetailLink() {
$uri = $this->getRevisionURI();
return "REVISION DETAIL\n {$uri}";
}
public function getRevisionURI() {
return PhabricatorEnv::getProductionURI('/D'.$this->getRevision()->getID());
}
public function setIsFirstMailToRecipients($first) {
$this->isFirstMailToRecipients = $first;
return $this;
}
public function isFirstMailToRecipients() {
return $this->isFirstMailToRecipients;
}
public function setIsFirstMailAboutRevision($first) {
$this->isFirstMailAboutRevision = $first;
return $this;
}
public function isFirstMailAboutRevision() {
return $this->isFirstMailAboutRevision;
}
public function setHeraldTranscriptURI($herald_transcript_uri) {
$this->heraldTranscriptURI = $herald_transcript_uri;
return $this;
}
public function getHeraldTranscriptURI() {
return $this->heraldTranscriptURI;
}
protected function renderHandleList(array $handles, array $phids) {
$names = array();
foreach ($phids as $phid) {
$names[] = $handles[$phid]->getName();
}
return implode(', ', $names);
}
}

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