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phabricator/src/infrastructure/daemon/bot/handler/PhabricatorBotFeedNotificationHandler.php
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PhabricatorBotFeedNotificationHandler.php
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<?php
/**
* Watches the feed and puts notifications into channel(s) of choice.
*/
final class PhabricatorBotFeedNotificationHandler
extends PhabricatorBotHandler {
private $startupDelay = 30;
private $lastSeenChronoKey = 0;
private $typesNeedURI = array('DREV', 'TASK');
private function shouldShowStory($story) {
$story_objectphid = $story['objectPHID'];
$story_text = $story['text'];
$show = $this->getConfig('notification.types');
if ($show) {
$obj_type = phid_get_type($story_objectphid);
if (!in_array(strtolower($obj_type), $show)) {
return false;
}
}
$verbosity = $this->getConfig('notification.verbosity', 3);
$verbs = array();
switch ($verbosity) {
case 2:
$verbs[] = array(
'commented',
'added',
'changed',
'resigned',
'explained',
'modified',
'attached',
'edited',
'joined',
'left',
'removed',
);
// fallthrough
case 1:
$verbs[] = array(
'updated',
'accepted',
'requested',
'planned',
'claimed',
'summarized',
'commandeered',
'assigned',
);
// fallthrough
case 0:
$verbs[] = array(
'created',
'closed',
'raised',
'committed',
'abandoned',
'reclaimed',
'reopened',
'deleted',
);
break;
case 3:
default:
return true;
}
$verbs = '/('.implode('|', array_mergev($verbs)).')/';
if (preg_match($verbs, $story_text)) {
return true;
}
return false;
}
public function receiveMessage(PhabricatorBotMessage $message) {
return;
}
public function runBackgroundTasks() {
if ($this->startupDelay > 0) {
// the event loop runs every 1s so delay enough to fully conenct
$this->startupDelay--;
return;
}
if ($this->lastSeenChronoKey == 0) {
// Since we only want to post notifications about new stories, skip
// everything that's happened in the past when we start up so we'll
// only process real-time stories.
$latest = $this->getConduit()->callMethodSynchronous(
'feed.query',
array(
'limit' => 1,
));
foreach ($latest as $story) {
if ($story['chronologicalKey'] > $this->lastSeenChronoKey) {
$this->lastSeenChronoKey = $story['chronologicalKey'];
}
}
return;
}
$config_max_pages = $this->getConfig('notification.max_pages', 5);
$config_page_size = $this->getConfig('notification.page_size', 10);
$last_seen_chrono_key = $this->lastSeenChronoKey;
$chrono_key_cursor = 0;
// Not efficient but works due to feed.query API
for ($max_pages = $config_max_pages; $max_pages > 0; $max_pages--) {
$stories = $this->getConduit()->callMethodSynchronous(
'feed.query',
array(
'limit' => $config_page_size,
'after' => $chrono_key_cursor,
'view' => 'text',
));
foreach ($stories as $story) {
if ($story['chronologicalKey'] == $last_seen_chrono_key) {
// Caught up on feed
return;
}
if ($story['chronologicalKey'] > $this->lastSeenChronoKey) {
// Keep track of newest seen story
$this->lastSeenChronoKey = $story['chronologicalKey'];
}
if (!$chrono_key_cursor ||
$story['chronologicalKey'] < $chrono_key_cursor) {
// Keep track of oldest story on this page
$chrono_key_cursor = $story['chronologicalKey'];
}
if (!$story['text'] ||
!$this->shouldShowStory($story)) {
continue;
}
$message = $story['text'];
$story_object_type = phid_get_type($story['objectPHID']);
if (in_array($story_object_type, $this->typesNeedURI)) {
$objects = $this->getConduit()->callMethodSynchronous(
'phid.lookup',
array(
'names' => array($story['objectPHID']),
));
$message .= ' '.$objects[$story['objectPHID']]['uri'];
}
$channels = $this->getConfig('join');
foreach ($channels as $channel_name) {
$channel = id(new PhabricatorBotChannel())
->setName($channel_name);
$this->writeMessage(
id(new PhabricatorBotMessage())
->setCommand('MESSAGE')
->setTarget($channel)
->setBody($message));
}
}
}
}
}

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