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phorge/src/applications/policy/capability/PhabricatorPolicyCapability.php
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PhabricatorPolicyCapability.php
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<?php
abstract class PhabricatorPolicyCapability extends Phobject {
const CAN_VIEW = 'view';
const CAN_EDIT = 'edit';
const CAN_JOIN = 'join';
/**
* Get the unique key identifying this capability. This key must be globally
* unique. Application capabilities should be namespaced. For example:
*
* application.create
*
* @return string Globally unique capability key.
*/
final public function getCapabilityKey() {
$class = new ReflectionClass($this);
$const = $class->getConstant('CAPABILITY');
if ($const === false) {
throw new Exception(
pht(
'%s class "%s" must define a %s property.',
__CLASS__,
get_class($this),
'CAPABILITY'));
}
if (!is_string($const)) {
throw new Exception(
pht(
'%s class "%s" has an invalid %s property. '.
'Capability constants must be a string.',
__CLASS__,
get_class($this),
'CAPABILITY'));
}
return $const;
}
/**
* Return a human-readable descriptive name for this capability, like
* "Can View".
*
* @return string Human-readable name describing the capability.
*/
abstract public function getCapabilityName();
/**
* Return a human-readable string describing what not having this capability
* prevents the user from doing. For example:
*
* - You do not have permission to edit this object.
* - You do not have permission to create new tasks.
*
* @return string Human-readable name describing what failing a check for this
* capability prevents the user from doing.
*/
public function describeCapabilityRejection() {
return null;
}
/**
* Can this capability be set to "public"? Broadly, this is only appropriate
* for view and view-related policies.
*
* @return bool True to allow the "public" policy. Returns false by default.
*/
public function shouldAllowPublicPolicySetting() {
return false;
}
final public static function getCapabilityByKey($key) {
return idx(self::getCapabilityMap(), $key);
}
final public static function getCapabilityMap() {
static $map;
if ($map === null) {
$capabilities = id(new PhutilSymbolLoader())
->setAncestorClass(__CLASS__)
->loadObjects();
$map = mpull($capabilities, null, 'getCapabilityKey');
}
return $map;
}
}

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