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phab/src/applications/policy/query/PhabricatorPolicyQuery.php
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PhabricatorPolicyQuery.php
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<?php
final class PhabricatorPolicyQuery
extends PhabricatorCursorPagedPolicyAwareQuery {
private $object;
private $phids;
const OBJECT_POLICY_PREFIX = 'obj.';
public function setObject(PhabricatorPolicyInterface $object) {
$this->object = $object;
return $this;
}
public function withPHIDs(array $phids) {
$this->phids = $phids;
return $this;
}
public static function loadPolicies(
PhabricatorUser $viewer,
PhabricatorPolicyInterface $object) {
$results = array();
$map = array();
foreach ($object->getCapabilities() as $capability) {
$map[$capability] = $object->getPolicy($capability);
}
$policies = id(new PhabricatorPolicyQuery())
->setViewer($viewer)
->withPHIDs($map)
->execute();
foreach ($map as $capability => $phid) {
$results[$capability] = $policies[$phid];
}
return $results;
}
public static function renderPolicyDescriptions(
PhabricatorUser $viewer,
PhabricatorPolicyInterface $object,
$icon = false) {
$policies = self::loadPolicies($viewer, $object);
foreach ($policies as $capability => $policy) {
$policies[$capability] = $policy->renderDescription($icon);
}
return $policies;
}
protected function loadPage() {
if ($this->object && $this->phids) {
throw new Exception(
pht(
'You can not issue a policy query with both %s and %s.',
'setObject()',
'setPHIDs()'));
} else if ($this->object) {
$phids = $this->loadObjectPolicyPHIDs();
} else {
$phids = $this->phids;
}
$phids = array_fuse($phids);
$results = array();
// First, load global policies.
foreach (self::getGlobalPolicies() as $phid => $policy) {
if (isset($phids[$phid])) {
$results[$phid] = $policy;
unset($phids[$phid]);
}
}
// Now, load object policies.
foreach (self::getObjectPolicies($this->object) as $phid => $policy) {
if (isset($phids[$phid])) {
$results[$phid] = $policy;
unset($phids[$phid]);
}
}
// If we still need policies, we're going to have to fetch data. Bucket
// the remaining policies into rule-based policies and handle-based
// policies.
if ($phids) {
$rule_policies = array();
$handle_policies = array();
foreach ($phids as $phid) {
$phid_type = phid_get_type($phid);
if ($phid_type == PhabricatorPolicyPHIDTypePolicy::TYPECONST) {
$rule_policies[$phid] = $phid;
} else {
$handle_policies[$phid] = $phid;
}
}
if ($handle_policies) {
$handles = id(new PhabricatorHandleQuery())
->setViewer($this->getViewer())
->withPHIDs($handle_policies)
->execute();
foreach ($handle_policies as $phid) {
$results[$phid] = PhabricatorPolicy::newFromPolicyAndHandle(
$phid,
$handles[$phid]);
}
}
if ($rule_policies) {
$rules = id(new PhabricatorPolicy())->loadAllWhere(
'phid IN (%Ls)',
$rule_policies);
$results += mpull($rules, null, 'getPHID');
}
}
$results = msort($results, 'getSortKey');
return $results;
}
public static function isGlobalPolicy($policy) {
$global_policies = self::getGlobalPolicies();
if (isset($global_policies[$policy])) {
return true;
}
return false;
}
public static function getGlobalPolicy($policy) {
if (!self::isGlobalPolicy($policy)) {
throw new Exception(pht("Policy '%s' is not a global policy!", $policy));
}
return idx(self::getGlobalPolicies(), $policy);
}
private static function getGlobalPolicies() {
static $constants = array(
PhabricatorPolicies::POLICY_PUBLIC,
PhabricatorPolicies::POLICY_USER,
PhabricatorPolicies::POLICY_ADMIN,
PhabricatorPolicies::POLICY_NOONE,
);
$results = array();
foreach ($constants as $constant) {
$results[$constant] = id(new PhabricatorPolicy())
->setType(PhabricatorPolicyType::TYPE_GLOBAL)
->setPHID($constant)
->setName(self::getGlobalPolicyName($constant))
->setShortName(self::getGlobalPolicyShortName($constant))
->makeEphemeral();
}
return $results;
}
private static function getGlobalPolicyName($policy) {
switch ($policy) {
case PhabricatorPolicies::POLICY_PUBLIC:
return pht('Public (No Login Required)');
case PhabricatorPolicies::POLICY_USER:
return pht('All Users');
case PhabricatorPolicies::POLICY_ADMIN:
return pht('Administrators');
case PhabricatorPolicies::POLICY_NOONE:
return pht('No One');
default:
return pht('Unknown Policy');
}
}
private static function getGlobalPolicyShortName($policy) {
switch ($policy) {
case PhabricatorPolicies::POLICY_PUBLIC:
return pht('Public');
default:
return null;
}
}
private function loadObjectPolicyPHIDs() {
$phids = array();
$viewer = $this->getViewer();
if ($viewer->getPHID()) {
$projects = id(new PhabricatorProjectQuery())
->setViewer($viewer)
->withMemberPHIDs(array($viewer->getPHID()))
->execute();
foreach ($projects as $project) {
$phids[] = $project->getPHID();
}
// Include the "current viewer" policy. This improves consistency, but
// is also useful for creating private instances of normally-shared object
// types, like repositories.
$phids[] = $viewer->getPHID();
}
$capabilities = $this->object->getCapabilities();
foreach ($capabilities as $capability) {
$policy = $this->object->getPolicy($capability);
if (!$policy) {
continue;
}
$phids[] = $policy;
}
// If this install doesn't have "Public" enabled, don't include it as an
// option unless the object already has a "Public" policy. In this case we
// retain the policy but enforce it as though it was "All Users".
$show_public = PhabricatorEnv::getEnvConfig('policy.allow-public');
foreach (self::getGlobalPolicies() as $phid => $policy) {
if ($phid == PhabricatorPolicies::POLICY_PUBLIC) {
if (!$show_public) {
continue;
}
}
$phids[] = $phid;
}
foreach (self::getObjectPolicies($this->object) as $phid => $policy) {
$phids[] = $phid;
}
return $phids;
}
protected function shouldDisablePolicyFiltering() {
// Policy filtering of policies is currently perilous and not required by
// the application.
return true;
}
public function getQueryApplicationClass() {
return 'PhabricatorPolicyApplication';
}
public static function isSpecialPolicy($identifier) {
if (self::isObjectPolicy($identifier)) {
return true;
}
if (self::isGlobalPolicy($identifier)) {
return true;
}
return false;
}
/* -( Object Policies )---------------------------------------------------- */
public static function isObjectPolicy($identifier) {
$prefix = self::OBJECT_POLICY_PREFIX;
return !strncmp($identifier, $prefix, strlen($prefix));
}
public static function getObjectPolicy($identifier) {
if (!self::isObjectPolicy($identifier)) {
return null;
}
$policies = self::getObjectPolicies(null);
return idx($policies, $identifier);
}
public static function getObjectPolicyRule($identifier) {
if (!self::isObjectPolicy($identifier)) {
return null;
}
$rules = self::getObjectPolicyRules(null);
return idx($rules, $identifier);
}
public static function getObjectPolicies($object) {
$rule_map = self::getObjectPolicyRules($object);
$results = array();
foreach ($rule_map as $key => $rule) {
$results[$key] = id(new PhabricatorPolicy())
->setType(PhabricatorPolicyType::TYPE_OBJECT)
->setPHID($key)
->setIcon($rule->getObjectPolicyIcon())
->setName($rule->getObjectPolicyName())
->setShortName($rule->getObjectPolicyShortName())
->makeEphemeral();
}
return $results;
}
public static function getObjectPolicyRules($object) {
$rules = id(new PhutilClassMapQuery())
->setAncestorClass('PhabricatorPolicyRule')
->execute();
$results = array();
foreach ($rules as $rule) {
$key = $rule->getObjectPolicyKey();
if (!$key) {
continue;
}
$full_key = $rule->getObjectPolicyFullKey();
if (isset($results[$full_key])) {
throw new Exception(
pht(
'Two policy rules (of classes "%s" and "%s") define the same '.
'object policy key ("%s"), but each object policy rule must use '.
'a unique key.',
get_class($rule),
get_class($results[$full_key]),
$key));
}
$results[$full_key] = $rule;
}
if ($object !== null) {
foreach ($results as $key => $rule) {
if (!$rule->canApplyToObject($object)) {
unset($results[$key]);
}
}
}
return $results;
}
public static function getDefaultPolicyForObject(
PhabricatorUser $viewer,
PhabricatorPolicyInterface $object,
$capability) {
$phid = $object->getPHID();
if (!$phid) {
return null;
}
$type = phid_get_type($phid);
$map = self::getDefaultObjectTypePolicyMap();
if (empty($map[$type][$capability])) {
return null;
}
$policy_phid = $map[$type][$capability];
return id(new PhabricatorPolicyQuery())
->setViewer($viewer)
->withPHIDs(array($policy_phid))
->executeOne();
}
private static function getDefaultObjectTypePolicyMap() {
static $map;
if ($map === null) {
$map = array();
$apps = PhabricatorApplication::getAllApplications();
foreach ($apps as $app) {
$map += $app->getDefaultObjectTypePolicyMap();
}
}
return $map;
}
}
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