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HeraldWebhook.php
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Created
Tue, Mar 4, 06:42

HeraldWebhook.php
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<?php
final class HeraldWebhook
extends HeraldDAO
implements
PhabricatorPolicyInterface,
PhabricatorApplicationTransactionInterface,
PhabricatorDestructibleInterface,
PhabricatorProjectInterface {
protected $name;
protected $webhookURI;
protected $viewPolicy;
protected $editPolicy;
protected $status;
protected $hmacKey;
const HOOKSTATUS_FIREHOSE = 'firehose';
const HOOKSTATUS_ENABLED = 'enabled';
const HOOKSTATUS_DISABLED = 'disabled';
protected function getConfiguration() {
return array(
self::CONFIG_AUX_PHID => true,
self::CONFIG_COLUMN_SCHEMA => array(
'name' => 'text128',
'webhookURI' => 'text255',
'status' => 'text32',
'hmacKey' => 'text32',
),
self::CONFIG_KEY_SCHEMA => array(
'key_status' => array(
'columns' => array('status'),
),
),
) + parent::getConfiguration();
}
public function getPHIDType() {
return HeraldWebhookPHIDType::TYPECONST;
}
public static function initializeNewWebhook(PhabricatorUser $viewer) {
return id(new self())
->setStatus(self::HOOKSTATUS_ENABLED)
->setViewPolicy(PhabricatorPolicies::getMostOpenPolicy())
->setEditPolicy($viewer->getPHID())
->regenerateHMACKey();
}
public function getURI() {
return '/herald/webhook/view/'.$this->getID().'/';
}
public function isDisabled() {
return ($this->getStatus() === self::HOOKSTATUS_DISABLED);
}
public static function getStatusDisplayNameMap() {
$specs = self::getStatusSpecifications();
return ipull($specs, 'name', 'key');
}
private static function getStatusSpecifications() {
$specs = array(
array(
'key' => self::HOOKSTATUS_FIREHOSE,
'name' => pht('Firehose'),
'color' => 'orange',
'icon' => 'fa-star-o',
),
array(
'key' => self::HOOKSTATUS_ENABLED,
'name' => pht('Enabled'),
'color' => 'bluegrey',
'icon' => 'fa-check',
),
array(
'key' => self::HOOKSTATUS_DISABLED,
'name' => pht('Disabled'),
'color' => 'dark',
'icon' => 'fa-ban',
),
);
return ipull($specs, null, 'key');
}
private static function getSpecificationForStatus($status) {
$specs = self::getStatusSpecifications();
if (isset($specs[$status])) {
return $specs[$status];
}
return array(
'key' => $status,
'name' => pht('Unknown ("%s")', $status),
'icon' => 'fa-question',
'color' => 'indigo',
);
}
public static function getDisplayNameForStatus($status) {
$spec = self::getSpecificationForStatus($status);
return $spec['name'];
}
public static function getIconForStatus($status) {
$spec = self::getSpecificationForStatus($status);
return $spec['icon'];
}
public static function getColorForStatus($status) {
$spec = self::getSpecificationForStatus($status);
return $spec['color'];
}
public function getStatusDisplayName() {
$status = $this->getStatus();
return self::getDisplayNameForStatus($status);
}
public function getStatusIcon() {
$status = $this->getStatus();
return self::getIconForStatus($status);
}
public function getStatusColor() {
$status = $this->getStatus();
return self::getColorForStatus($status);
}
public function getErrorBackoffWindow() {
return phutil_units('5 minutes in seconds');
}
public function getErrorBackoffThreshold() {
return 10;
}
public function isInErrorBackoff(PhabricatorUser $viewer) {
$backoff_window = $this->getErrorBackoffWindow();
$backoff_threshold = $this->getErrorBackoffThreshold();
$now = PhabricatorTime::getNow();
$window_start = ($now - $backoff_window);
$requests = id(new HeraldWebhookRequestQuery())
->setViewer($viewer)
->withWebhookPHIDs(array($this->getPHID()))
->withLastRequestEpochBetween($window_start, null)
->withLastRequestResults(
array(
HeraldWebhookRequest::RESULT_FAIL,
))
->execute();
if (count($requests) >= $backoff_threshold) {
return true;
}
return false;
}
public function regenerateHMACKey() {
return $this->setHMACKey(Filesystem::readRandomCharacters(32));
}
/* -( PhabricatorPolicyInterface )----------------------------------------- */
public function getCapabilities() {
return array(
PhabricatorPolicyCapability::CAN_VIEW,
PhabricatorPolicyCapability::CAN_EDIT,
);
}
public function getPolicy($capability) {
switch ($capability) {
case PhabricatorPolicyCapability::CAN_VIEW:
return $this->getViewPolicy();
case PhabricatorPolicyCapability::CAN_EDIT:
return $this->getEditPolicy();
}
}
public function hasAutomaticCapability($capability, PhabricatorUser $viewer) {
return false;
}
/* -( PhabricatorApplicationTransactionInterface )------------------------- */
public function getApplicationTransactionEditor() {
return new HeraldWebhookEditor();
}
public function getApplicationTransactionObject() {
return $this;
}
public function getApplicationTransactionTemplate() {
return new HeraldWebhookTransaction();
}
public function willRenderTimeline(
PhabricatorApplicationTransactionView $timeline,
AphrontRequest $request) {
return $timeline;
}
/* -( PhabricatorDestructibleInterface )----------------------------------- */
public function destroyObjectPermanently(
PhabricatorDestructionEngine $engine) {
while (true) {
$requests = id(new HeraldWebhookRequestQuery())
->setViewer($engine->getViewer())
->withWebhookPHIDs(array($this->getPHID()))
->setLimit(100)
->execute();
if (!$requests) {
break;
}
foreach ($requests as $request) {
$request->delete();
}
}
$this->delete();
}
}

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