RevisionAuthorPolicyRule.php
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	<?php

	final class RevisionAuthorPolicyRule
	extends PhabricatorPolicyRule {

	public function getObjectPolicyKey() {
	return 'revision.author';
	}

	public function getObjectPolicyName() {
	return pht('Revision Author');
	}

	public function getPolicyExplanation() {
	return pht('The author of this revision can take this action.');
	}

	public function getRuleDescription() {
	return pht('revision author');
	}

	public function canApplyToObject(PhabricatorPolicyInterface $object) {
	return ($object instanceof DifferentialRevision);
	}

	public function applyRule(
	PhabricatorUser $viewer,
	$value,
	PhabricatorPolicyInterface $object) {

	$viewer_phid = $viewer->getPHID();
	if (!$viewer_phid) {
	return false;
	}

	// Get the revision author
	$rev = id(new DifferentialRevisionQuery())
	->setViewer(PhabricatorUser::getOmnipotentUser())
	->withPHIDs(array($object->getPHID()))
	->executeOne();

	// Allow the author
	if($rev && $rev->getAuthorPHID() === $viewer->getPHID()){
	return true;
	}

	return false;
	}

	public function getValueControlType() {
	return self::CONTROL_TYPE_NONE;
	}

	}