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phab/src/applications/repository/worker/PhabricatorRepositoryCommitHeraldWorker.php
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PhabricatorRepositoryCommitHeraldWorker.php
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<?php
final class PhabricatorRepositoryCommitHeraldWorker
extends PhabricatorRepositoryCommitParserWorker {
public function getRequiredLeaseTime() {
// Herald rules may take a long time to process.
return 4 * 60 * 60;
}
public function parseCommit(
PhabricatorRepository $repository,
PhabricatorRepositoryCommit $commit) {
$data = id(new PhabricatorRepositoryCommitData())->loadOneWhere(
'commitID = %d',
$commit->getID());
if (!$data) {
// TODO: Permanent failure.
return;
}
$adapter = HeraldCommitAdapter::newLegacyAdapter(
$repository,
$commit,
$data);
$rules = id(new HeraldRuleQuery())
->setViewer(PhabricatorUser::getOmnipotentUser())
->withContentTypes(array($adapter->getAdapterContentType()))
->needConditionsAndActions(true)
->needAppliedToPHIDs(array($adapter->getPHID()))
->needValidateAuthors(true)
->execute();
$engine = new HeraldEngine();
$effects = $engine->applyRules($rules, $adapter);
$engine->applyEffects($effects, $adapter, $rules);
$xscript = $engine->getTranscript();
$audit_phids = $adapter->getAuditMap();
if ($audit_phids) {
$this->createAudits($commit, $audit_phids, $rules);
}
$explicit_auditors = $this->createAuditsFromCommitMessage($commit, $data);
if ($repository->getDetail('herald-disabled')) {
// This just means "disable email"; audits are (mostly) idempotent.
return;
}
$this->publishFeedStory($repository, $commit, $data);
$herald_targets = $adapter->getEmailPHIDs();
$email_phids = array_unique(
array_merge(
$explicit_auditors,
$herald_targets));
if (!$email_phids) {
return;
}
$revision = $adapter->loadDifferentialRevision();
if ($revision) {
$name = $revision->getTitle();
} else {
$name = $data->getSummary();
}
$author_phid = $data->getCommitDetail('authorPHID');
$reviewer_phid = $data->getCommitDetail('reviewerPHID');
$phids = array_filter(
array(
$author_phid,
$reviewer_phid,
$commit->getPHID(),
));
$handles = id(new PhabricatorObjectHandleData($phids))
->setViewer(PhabricatorUser::getOmnipotentUser())
->loadHandles();
$commit_handle = $handles[$commit->getPHID()];
$commit_name = $commit_handle->getName();
if ($author_phid) {
$author_name = $handles[$author_phid]->getName();
} else {
$author_name = $data->getAuthorName();
}
if ($reviewer_phid) {
$reviewer_name = $handles[$reviewer_phid]->getName();
} else {
$reviewer_name = null;
}
$who = implode(', ', array_filter(array($author_name, $reviewer_name)));
$description = $data->getCommitMessage();
$commit_uri = PhabricatorEnv::getProductionURI($commit_handle->getURI());
$differential = $revision
? PhabricatorEnv::getProductionURI('/D'.$revision->getID())
: 'No revision.';
$files = $adapter->loadAffectedPaths();
sort($files);
$files = implode("\n", $files);
$xscript_id = $xscript->getID();
$manage_uri = '/herald/view/commits/';
$why_uri = '/herald/transcript/'.$xscript_id.'/';
$reply_handler = PhabricatorAuditCommentEditor::newReplyHandlerForCommit(
$commit);
$template = new PhabricatorMetaMTAMail();
$inline_patch_text = $this->buildPatch($template, $repository, $commit);
$body = new PhabricatorMetaMTAMailBody();
$body->addRawSection($description);
$body->addTextSection(pht('DETAILS'), $commit_uri);
$body->addTextSection(pht('DIFFERENTIAL REVISION'), $differential);
$body->addTextSection(pht('AFFECTED FILES'), $files);
$body->addReplySection($reply_handler->getReplyHandlerInstructions());
$body->addHeraldSection($manage_uri, $why_uri);
$body->addRawSection($inline_patch_text);
$body = $body->render();
$prefix = PhabricatorEnv::getEnvConfig('metamta.diffusion.subject-prefix');
$threading = PhabricatorAuditCommentEditor::getMailThreading(
$repository,
$commit);
list($thread_id, $thread_topic) = $threading;
$template->setRelatedPHID($commit->getPHID());
$template->setSubject("{$commit_name}: {$name}");
$template->setSubjectPrefix($prefix);
$template->setVarySubjectPrefix("[Commit]");
$template->setBody($body);
$template->setThreadID($thread_id, $is_new = true);
$template->addHeader('Thread-Topic', $thread_topic);
$template->setIsBulk(true);
$template->addHeader('X-Herald-Rules', $xscript->getXHeraldRulesHeader());
if ($author_phid) {
$template->setFrom($author_phid);
}
// TODO: We should verify that each recipient can actually see the
// commit before sending them email (T603).
$mails = $reply_handler->multiplexMail(
$template,
id(new PhabricatorObjectHandleData($email_phids))
->setViewer(PhabricatorUser::getOmnipotentUser())
->loadHandles(),
array());
foreach ($mails as $mail) {
$mail->saveAndSend();
}
}
private function createAudits(
PhabricatorRepositoryCommit $commit,
array $map,
array $rules) {
assert_instances_of($rules, 'HeraldRule');
$requests = id(new PhabricatorRepositoryAuditRequest())->loadAllWhere(
'commitPHID = %s',
$commit->getPHID());
$requests = mpull($requests, null, 'getAuditorPHID');
$rules = mpull($rules, null, 'getID');
foreach ($map as $phid => $rule_ids) {
$request = idx($requests, $phid);
if ($request) {
continue;
}
$reasons = array();
foreach ($rule_ids as $id) {
$rule_name = '?';
if ($rules[$id]) {
$rule_name = $rules[$id]->getName();
}
$reasons[] = 'Herald Rule #'.$id.' "'.$rule_name.'" Triggered Audit';
}
$request = new PhabricatorRepositoryAuditRequest();
$request->setCommitPHID($commit->getPHID());
$request->setAuditorPHID($phid);
$request->setAuditStatus(PhabricatorAuditStatusConstants::AUDIT_REQUIRED);
$request->setAuditReasons($reasons);
$request->save();
}
$commit->updateAuditStatus($requests);
$commit->save();
}
/**
* Find audit requests in the "Auditors" field if it is present and trigger
* explicit audit requests.
*/
private function createAuditsFromCommitMessage(
PhabricatorRepositoryCommit $commit,
PhabricatorRepositoryCommitData $data) {
$message = $data->getCommitMessage();
$matches = null;
if (!preg_match('/^Auditors:\s*(.*)$/im', $message, $matches)) {
return array();
}
$phids = DifferentialFieldSpecification::parseCommitMessageObjectList(
$matches[1],
$include_mailables = false,
$allow_partial = true);
if (!$phids) {
return array();
}
$requests = id(new PhabricatorRepositoryAuditRequest())->loadAllWhere(
'commitPHID = %s',
$commit->getPHID());
$requests = mpull($requests, null, 'getAuditorPHID');
foreach ($phids as $phid) {
if (isset($requests[$phid])) {
continue;
}
$request = new PhabricatorRepositoryAuditRequest();
$request->setCommitPHID($commit->getPHID());
$request->setAuditorPHID($phid);
$request->setAuditStatus(
PhabricatorAuditStatusConstants::AUDIT_REQUESTED);
$request->setAuditReasons(
array(
'Requested by Author',
));
$request->save();
$requests[$phid] = $request;
}
$commit->updateAuditStatus($requests);
$commit->save();
return $phids;
}
private function publishFeedStory(
PhabricatorRepository $repository,
PhabricatorRepositoryCommit $commit,
PhabricatorRepositoryCommitData $data) {
if (time() > $commit->getEpoch() + (24 * 60 * 60)) {
// Don't publish stories that are more than 24 hours old, to avoid
// ridiculous levels of feed spam if a repository is imported without
// disabling feed publishing.
return;
}
$author_phid = $commit->getAuthorPHID();
$committer_phid = $data->getCommitDetail('committerPHID');
$publisher = new PhabricatorFeedStoryPublisher();
$publisher->setStoryType(PhabricatorFeedStoryTypeConstants::STORY_COMMIT);
$publisher->setStoryData(
array(
'commitPHID' => $commit->getPHID(),
'summary' => $data->getSummary(),
'authorName' => $data->getAuthorName(),
'authorPHID' => $author_phid,
'committerName' => $data->getCommitDetail('committer'),
'committerPHID' => $committer_phid,
));
$publisher->setStoryTime($commit->getEpoch());
$publisher->setRelatedPHIDs(
array_filter(
array(
$author_phid,
$committer_phid,
)));
if ($author_phid) {
$publisher->setStoryAuthorPHID($author_phid);
}
$publisher->publish();
}
private function buildPatch(
PhabricatorMetaMTAMail $template,
PhabricatorRepository $repository,
PhabricatorRepositoryCommit $commit) {
$attach_key = 'metamta.diffusion.attach-patches';
$inline_key = 'metamta.diffusion.inline-patches';
$attach_patches = PhabricatorEnv::getEnvConfig($attach_key);
$inline_patches = PhabricatorEnv::getEnvConfig($inline_key);
if (!$attach_patches && !$inline_patches) {
return;
}
$encoding = $repository->getDetail('encoding', 'UTF-8');
$result = null;
$patch_error = null;
try {
$raw_patch = $this->loadRawPatchText($repository, $commit);
if ($attach_patches) {
$commit_name = $repository->formatCommitName(
$commit->getCommitIdentifier());
$template->addAttachment(
new PhabricatorMetaMTAAttachment(
$raw_patch,
$commit_name.'.patch',
'text/x-patch; charset='.$encoding));
}
} catch (Exception $ex) {
phlog($ex);
$patch_error = 'Unable to generate: '.$ex->getMessage();
}
if ($patch_error) {
$result = $patch_error;
} else if ($inline_patches) {
$len = substr_count($raw_patch, "\n");
if ($len <= $inline_patches) {
// We send email as utf8, so we need to convert the text to utf8 if
// we can.
if ($encoding) {
$raw_patch = phutil_utf8_convert($raw_patch, 'UTF-8', $encoding);
}
$result = phutil_utf8ize($raw_patch);
}
}
if ($result) {
$result = "PATCH\n\n{$result}\n";
}
return $result;
}
private function loadRawPatchText(
PhabricatorRepository $repository,
PhabricatorRepositoryCommit $commit) {
$drequest = DiffusionRequest::newFromDictionary(
array(
'user' => PhabricatorUser::getOmnipotentUser(),
'initFromConduit' => false,
'repository' => $repository,
'commit' => $commit->getCommitIdentifier(),
));
$raw_query = DiffusionRawDiffQuery::newFromDiffusionRequest($drequest);
$raw_query->setLinesOfContext(3);
$time_key = 'metamta.diffusion.time-limit';
$byte_key = 'metamta.diffusion.byte-limit';
$time_limit = PhabricatorEnv::getEnvConfig($time_key);
$byte_limit = PhabricatorEnv::getEnvConfig($byte_key);
if ($time_limit) {
$raw_query->setTimeout($time_limit);
}
$raw_diff = $raw_query->loadRawDiff();
$size = strlen($raw_diff);
if ($byte_limit && $size > $byte_limit) {
$pretty_size = phabricator_format_bytes($size);
$pretty_limit = phabricator_format_bytes($byte_limit);
throw new Exception(
"Patch size of {$pretty_size} exceeds configured byte size limit of ".
"{$pretty_limit}.");
}
return $raw_diff;
}
}
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