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phab/src/applications/herald/action/HeraldAction.php
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HeraldAction.php
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<?php
abstract class HeraldAction extends Phobject {
private $adapter;
private $viewer;
private $applyLog = array();
const STANDARD_NONE = 'standard.none';
const STANDARD_PHID_LIST = 'standard.phid.list';
const STANDARD_TEXT = 'standard.text';
const DO_STANDARD_EMPTY = 'do.standard.empty';
const DO_STANDARD_NO_EFFECT = 'do.standard.no-effect';
const DO_STANDARD_INVALID = 'do.standard.invalid';
const DO_STANDARD_UNLOADABLE = 'do.standard.unloadable';
const DO_STANDARD_PERMISSION = 'do.standard.permission';
const DO_STANDARD_INVALID_ACTION = 'do.standard.invalid-action';
const DO_STANDARD_WRONG_RULE_TYPE = 'do.standard.wrong-rule-type';
abstract public function getHeraldActionName();
abstract public function supportsObject($object);
abstract public function supportsRuleType($rule_type);
abstract public function applyEffect($object, HeraldEffect $effect);
protected function renderActionEffectDescription($type, $data) {
return null;
}
public function getActionGroupKey() {
return null;
}
public function getActionsForObject($object) {
return array($this->getActionConstant() => $this);
}
protected function getDatasource() {
throw new PhutilMethodNotImplementedException();
}
protected function getDatasourceValueMap() {
return null;
}
public function getHeraldActionStandardType() {
throw new PhutilMethodNotImplementedException();
}
public function getHeraldActionValueType() {
switch ($this->getHeraldActionStandardType()) {
case self::STANDARD_NONE:
return new HeraldEmptyFieldValue();
case self::STANDARD_TEXT:
return new HeraldTextFieldValue();
case self::STANDARD_PHID_LIST:
$tokenizer = id(new HeraldTokenizerFieldValue())
->setKey($this->getHeraldActionName())
->setDatasource($this->getDatasource());
$value_map = $this->getDatasourceValueMap();
if ($value_map !== null) {
$tokenizer->setValueMap($value_map);
}
return $tokenizer;
}
throw new PhutilMethodNotImplementedException();
}
public function willSaveActionValue($value) {
try {
$type = $this->getHeraldActionStandardType();
} catch (PhutilMethodNotImplementedException $ex) {
return $value;
}
switch ($type) {
case self::STANDARD_PHID_LIST:
return array_keys($value);
}
return $value;
}
final public function setAdapter(HeraldAdapter $adapter) {
$this->adapter = $adapter;
return $this;
}
final public function getAdapter() {
return $this->adapter;
}
final public function setViewer(PhabricatorUser $viewer) {
$this->viewer = $viewer;
return $this;
}
final public function getViewer() {
return $this->viewer;
}
final public function getActionConstant() {
$class = new ReflectionClass($this);
$const = $class->getConstant('ACTIONCONST');
if ($const === false) {
throw new Exception(
pht(
'"%s" class "%s" must define a "%s" property.',
__CLASS__,
get_class($this),
'ACTIONCONST'));
}
$limit = self::getActionConstantByteLimit();
if (!is_string($const) || (strlen($const) > $limit)) {
throw new Exception(
pht(
'"%s" class "%s" has an invalid "%s" property. Action constants '.
'must be strings and no more than %s bytes in length.',
__CLASS__,
get_class($this),
'ACTIONCONST',
new PhutilNumber($limit)));
}
return $const;
}
final public static function getActionConstantByteLimit() {
return 64;
}
final public static function getAllActions() {
return id(new PhutilClassMapQuery())
->setAncestorClass(__CLASS__)
->setUniqueMethod('getActionConstant')
->execute();
}
protected function logEffect($type, $data = null) {
if (!is_string($type)) {
throw new Exception(
pht(
'Effect type passed to "%s" must be a scalar string.',
'logEffect()'));
}
$this->applyLog[] = array(
'type' => $type,
'data' => $data,
);
return $this;
}
final public function getApplyTranscript(HeraldEffect $effect) {
$context = $this->applyLog;
$this->applyLog = array();
return new HeraldApplyTranscript($effect, true, $context);
}
protected function getActionEffectMap() {
throw new PhutilMethodNotImplementedException();
}
private function getActionEffectSpec($type) {
$map = $this->getActionEffectMap() + $this->getStandardEffectMap();
return idx($map, $type, array());
}
final public function renderActionEffectIcon($type, $data) {
$map = $this->getActionEffectSpec($type);
return idx($map, 'icon');
}
final public function renderActionEffectColor($type, $data) {
$map = $this->getActionEffectSpec($type);
return idx($map, 'color');
}
final public function renderActionEffectName($type, $data) {
$map = $this->getActionEffectSpec($type);
return idx($map, 'name');
}
protected function renderHandleList($phids) {
if (!is_array($phids)) {
return pht('(Invalid List)');
}
return $this->getViewer()
->renderHandleList($phids)
->setAsInline(true)
->render();
}
protected function loadStandardTargets(
array $phids,
array $allowed_types,
array $current_value) {
$phids = array_fuse($phids);
if (!$phids) {
$this->logEffect(self::DO_STANDARD_EMPTY);
}
$current_value = array_fuse($current_value);
$no_effect = array();
foreach ($phids as $phid) {
if (isset($current_value[$phid])) {
$no_effect[] = $phid;
unset($phids[$phid]);
}
}
if ($no_effect) {
$this->logEffect(self::DO_STANDARD_NO_EFFECT, $no_effect);
}
if (!$phids) {
return;
}
$allowed_types = array_fuse($allowed_types);
$invalid = array();
foreach ($phids as $phid) {
$type = phid_get_type($phid);
if ($type == PhabricatorPHIDConstants::PHID_TYPE_UNKNOWN) {
$invalid[] = $phid;
unset($phids[$phid]);
continue;
}
if ($allowed_types && empty($allowed_types[$type])) {
$invalid[] = $phid;
unset($phids[$phid]);
continue;
}
}
if ($invalid) {
$this->logEffect(self::DO_STANDARD_INVALID, $invalid);
}
if (!$phids) {
return;
}
$targets = id(new PhabricatorObjectQuery())
->setViewer(PhabricatorUser::getOmnipotentUser())
->withPHIDs($phids)
->execute();
$targets = mpull($targets, null, 'getPHID');
$unloadable = array();
foreach ($phids as $phid) {
if (empty($targets[$phid])) {
$unloadable[] = $phid;
unset($phids[$phid]);
}
}
if ($unloadable) {
$this->logEffect(self::DO_STANDARD_UNLOADABLE, $unloadable);
}
if (!$phids) {
return;
}
$adapter = $this->getAdapter();
$object = $adapter->getObject();
if ($object instanceof PhabricatorPolicyInterface) {
$no_permission = array();
foreach ($targets as $phid => $target) {
if (!($target instanceof PhabricatorUser)) {
continue;
}
$can_view = PhabricatorPolicyFilter::hasCapability(
$target,
$object,
PhabricatorPolicyCapability::CAN_VIEW);
if ($can_view) {
continue;
}
$no_permission[] = $phid;
unset($targets[$phid]);
}
}
if ($no_permission) {
$this->logEffect(self::DO_STANDARD_PERMISSION, $no_permission);
}
return $targets;
}
protected function getStandardEffectMap() {
return array(
self::DO_STANDARD_EMPTY => array(
'icon' => 'fa-ban',
'color' => 'grey',
'name' => pht('No Targets'),
),
self::DO_STANDARD_NO_EFFECT => array(
'icon' => 'fa-circle-o',
'color' => 'grey',
'name' => pht('No Effect'),
),
self::DO_STANDARD_INVALID => array(
'icon' => 'fa-ban',
'color' => 'red',
'name' => pht('Invalid Targets'),
),
self::DO_STANDARD_UNLOADABLE => array(
'icon' => 'fa-ban',
'color' => 'red',
'name' => pht('Unloadable Targets'),
),
self::DO_STANDARD_PERMISSION => array(
'icon' => 'fa-lock',
'color' => 'red',
'name' => pht('No Permission'),
),
self::DO_STANDARD_INVALID_ACTION => array(
'icon' => 'fa-ban',
'color' => 'red',
'name' => pht('Invalid Action'),
),
self::DO_STANDARD_WRONG_RULE_TYPE => array(
'icon' => 'fa-ban',
'color' => 'red',
'name' => pht('Wrong Rule Type'),
),
);
}
final public function renderEffectDescription($type, $data) {
$result = $this->renderActionEffectDescription($type, $data);
if ($result !== null) {
return $result;
}
switch ($type) {
case self::DO_STANDARD_EMPTY:
return pht(
'This action specifies no targets.');
case self::DO_STANDARD_NO_EFFECT:
return pht(
'This action has no effect on %s target(s): %s.',
new PhutilNumber(count($data)),
$this->renderHandleList($data));
case self::DO_STANDARD_INVALID:
return pht(
'%s target(s) are invalid or of the wrong type: %s.',
new PhutilNumber(count($data)),
$this->renderHandleList($data));
case self::DO_STANDARD_UNLOADABLE:
return pht(
'%s target(s) could not be loaded: %s.',
new PhutilNumber(count($data)),
$this->renderHandleList($data));
case self::DO_STANDARD_PERMISSION:
return pht(
'%s target(s) do not have permission to see this object: %s.',
new PhutilNumber(count($data)),
$this->renderHandleList($data));
case self::DO_STANDARD_INVALID_ACTION:
return pht(
'No implementation is available for rule "%s".',
$data);
case self::DO_STANDARD_WRONG_RULE_TYPE:
return pht(
'This action does not support rules of type "%s".',
$data);
}
return null;
}
}
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