LegalpadDocumentSignature.php
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	<?php

	final class LegalpadDocumentSignature
	extends LegalpadDAO
	implements PhabricatorPolicyInterface {

	const VERIFIED = 0;
	const UNVERIFIED = 1;

	protected $documentPHID;
	protected $documentVersion;
	protected $signerPHID;
	protected $signerName;
	protected $signerEmail;
	protected $signatureData = array();
	protected $verified;
	protected $secretKey;

	private $document = self::ATTACHABLE;

	public function getConfiguration() {
	return array(
	self::CONFIG_SERIALIZATION => array(
	'signatureData' => self::SERIALIZATION_JSON,
	),
	) + parent::getConfiguration();
	}

	public function save() {
	if (!$this->getSecretKey()) {
	$this->setSecretKey(Filesystem::readRandomCharacters(20));
	}
	return parent::save();
	}

	public function isVerified() {
	return ($this->getVerified() != self::UNVERIFIED);
	}

	public function getDocument() {
	return $this->assertAttached($this->document);
	}

	public function attachDocument(LegalpadDocument $document) {
	$this->document = $document;
	return $this;
	}


	/* -( PhabricatorPolicyInterface )----------------------------------------- */


	public function getCapabilities() {
	return array(
	PhabricatorPolicyCapability::CAN_VIEW,
	);
	}

	public function getPolicy($capability) {
	switch ($capability) {
	case PhabricatorPolicyCapability::CAN_VIEW:
	return $this->getDocument()->getPolicy(
	PhabricatorPolicyCapability::CAN_EDIT);
	}
	}

	public function hasAutomaticCapability($capability, PhabricatorUser $viewer) {
	return ($viewer->getPHID() == $this->getSignerPHID());
	}

	public function describeAutomaticCapability($capability) {
	return null;
	}

	}