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phab/src/applications/differential/replyhandler/DifferentialReplyHandler.php
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DifferentialReplyHandler.php
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<?php
/*
* Copyright 2012 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.
*/
final class DifferentialReplyHandler extends PhabricatorMailReplyHandler {
private $receivedMail;
public function validateMailReceiver($mail_receiver) {
if (!($mail_receiver instanceof DifferentialRevision)) {
throw new Exception("Receiver is not a DifferentialRevision!");
}
}
public function getPrivateReplyHandlerEmailAddress(
PhabricatorObjectHandle $handle) {
return $this->getDefaultPrivateReplyHandlerEmailAddress($handle, 'D');
}
public function getPublicReplyHandlerEmailAddress() {
return $this->getDefaultPublicReplyHandlerEmailAddress('D');
}
public function getReplyHandlerDomain() {
return PhabricatorEnv::getEnvConfig(
'metamta.differential.reply-handler-domain');
}
/*
* Generate text like the following from the supported commands.
* "
*
* ACTIONS
* Reply to comment, or !accept, !reject, !abandon, !resign, !reclaim.
*
* "
*/
public function getReplyHandlerInstructions() {
if (!$this->supportsReplies()) {
return null;
}
$supported_commands = $this->getSupportedCommands();
$text = '';
if (empty($supported_commands)) {
return $text;
}
$comment_command_printed = false;
if (in_array(DifferentialAction::ACTION_COMMENT, $supported_commands)) {
$text .= 'Reply to comment';
$comment_command_printed = true;
$supported_commands = array_diff(
$supported_commands, array(DifferentialAction::ACTION_COMMENT));
}
if (!empty($supported_commands)) {
if ($comment_command_printed) {
$text .= ', or ';
}
$modified_commands = array();
foreach ($supported_commands as $command) {
$modified_commands[] = '!'.$command;
}
$text .= implode(', ', $modified_commands);
}
$text .= ".";
return $text;
}
public function getSupportedCommands() {
$actions = array(
DifferentialAction::ACTION_COMMENT,
DifferentialAction::ACTION_REJECT,
DifferentialAction::ACTION_ABANDON,
DifferentialAction::ACTION_RECLAIM,
DifferentialAction::ACTION_RESIGN,
DifferentialAction::ACTION_RETHINK,
'unsubscribe',
);
if (PhabricatorEnv::getEnvConfig('differential.enable-email-accept')) {
$actions[] = DifferentialAction::ACTION_ACCEPT;
}
return $actions;
}
public function receiveEmail(PhabricatorMetaMTAReceivedMail $mail) {
$this->receivedMail = $mail;
$this->handleAction($mail->getCleanTextBody());
}
public function handleAction($body) {
// all commands start with a bang and separated from the body by a newline
// to make sure that actual feedback text couldn't trigger an action.
// unrecognized commands will be parsed as part of the comment.
$command = DifferentialAction::ACTION_COMMENT;
$supported_commands = $this->getSupportedCommands();
$regex = "/\A\n*!(" . implode('|', $supported_commands) . ")\n*/";
$matches = array();
if (preg_match($regex, $body, $matches)) {
$command = $matches[1];
$body = trim(str_replace('!' . $command, '', $body));
}
$actor = $this->getActor();
if (!$actor) {
throw new Exception('No actor is set for the reply action.');
}
switch ($command) {
case 'unsubscribe':
$this->unsubscribeUser($this->getMailReceiver(), $actor);
// TODO: Send the user a confirmation email?
return null;
}
try {
$editor = new DifferentialCommentEditor(
$this->getMailReceiver(),
$actor->getPHID(),
$command);
// NOTE: We have to be careful about this because Facebook's
// implementation jumps straight into handleAction() and will not have
// a PhabricatorMetaMTAReceivedMail object.
if ($this->receivedMail) {
$content_source = PhabricatorContentSource::newForSource(
PhabricatorContentSource::SOURCE_EMAIL,
array(
'id' => $this->receivedMail->getID(),
));
$editor->setContentSource($content_source);
$editor->setParentMessageID($this->receivedMail->getMessageID());
}
$editor->setMessage($body);
$comment = $editor->save();
return $comment->getID();
} catch (Exception $ex) {
$exception_mail = new DifferentialExceptionMail(
$this->getMailReceiver(),
$ex,
$body);
$exception_mail->setToPHIDs(array($this->getActor()->getPHID()));
$exception_mail->send();
throw $ex;
}
}
private function unsubscribeUser(
DifferentialRevision $revision,
PhabricatorUser $user) {
$revision->loadRelationships();
DifferentialRevisionEditor::removeCCAndUpdateRevision(
$revision,
$user->getPHID(),
$user->getPHID());
}
}
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