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phab/src/applications/policy/controller/PhabricatorPolicyExplainController.php
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PhabricatorPolicyExplainController.php
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<?php
final class PhabricatorPolicyExplainController
extends PhabricatorPolicyController {
public function shouldAllowPublic() {
return true;
}
public function handleRequest(AphrontRequest $request) {
$viewer = $this->getViewer();
$phid = $request->getURIData('phid');
$capability = $request->getURIData('capability');
$object = id(new PhabricatorObjectQuery())
->setViewer($viewer)
->withPHIDs(array($phid))
->executeOne();
if (!$object) {
return new Aphront404Response();
}
$policies = PhabricatorPolicyQuery::loadPolicies(
$viewer,
$object);
$policy = idx($policies, $capability);
if (!$policy) {
return new Aphront404Response();
}
$handle = id(new PhabricatorHandleQuery())
->setViewer($viewer)
->withPHIDs(array($phid))
->executeOne();
$object_name = $handle->getName();
$object_uri = nonempty($handle->getURI(), '/');
$dialog = id(new AphrontDialogView())
->setUser($viewer)
->setClass('aphront-access-dialog aphront-policy-explain-dialog')
->setTitle(pht('Policy Details: %s', $object_name))
->addCancelButton($object_uri, pht('Done'));
$space_section = $this->buildSpaceSection(
$object,
$policy,
$capability);
$extended_section = $this->buildExtendedSection(
$object,
$capability);
$exceptions_section = $this->buildExceptionsSection(
$object,
$capability);
$object_section = $this->buildObjectSection(
$object,
$policy,
$capability,
$handle);
$dialog->appendChild(
array(
$space_section,
$extended_section,
$exceptions_section,
$object_section,
));
return $dialog;
}
private function buildSpaceSection(
PhabricatorPolicyInterface $object,
PhabricatorPolicy $policy,
$capability) {
$viewer = $this->getViewer();
if (!($object instanceof PhabricatorSpacesInterface)) {
return null;
}
if (!PhabricatorSpacesNamespaceQuery::getSpacesExist()) {
return null;
}
$space_phid = PhabricatorSpacesNamespaceQuery::getObjectSpacePHID(
$object);
$spaces = PhabricatorSpacesNamespaceQuery::getViewerSpaces($viewer);
$space = idx($spaces, $space_phid);
if (!$space) {
return null;
}
$space_policies = PhabricatorPolicyQuery::loadPolicies($viewer, $space);
$space_policy = idx($space_policies, PhabricatorPolicyCapability::CAN_VIEW);
if (!$space_policy) {
return null;
}
$doc_href = PhabricatorEnv::getDoclink('Spaces User Guide');
$capability_name = $this->getCapabilityName($capability);
$space_section = id(new PHUIPolicySectionView())
->setViewer($viewer)
->setIcon('fa-th-large bluegrey')
->setHeader(pht('Space'))
->setDocumentationLink(pht('Spaces Documentation'), $doc_href)
->appendList(
array(
array(
phutil_tag('strong', array(), pht('Space:')),
' ',
$viewer->renderHandle($space_phid)->setAsTag(true),
),
array(
phutil_tag('strong', array(), pht('%s:', $capability_name)),
' ',
$space_policy->getShortName(),
),
))
->appendParagraph(
pht(
'This object is in %s and can only be seen or edited by users '.
'with access to view objects in the space.',
$viewer->renderHandle($space_phid)));
$space_explanation = PhabricatorPolicy::getPolicyExplanation(
$viewer,
$space_policy->getPHID());
$items = array();
$items[] = $space_explanation;
$space_section
->appendParagraph(pht('Users who can see objects in this space:'))
->appendList($items);
$view_capability = PhabricatorPolicyCapability::CAN_VIEW;
if ($capability == $view_capability) {
$stronger = $space_policy->isStrongerThan($policy);
if ($stronger) {
$space_section->appendHint(
pht(
'The space this object is in has a more restrictive view '.
'policy ("%s") than the object does ("%s"), so the space\'s '.
'view policy is shown as a hint instead of the object policy.',
$space_policy->getShortName(),
$policy->getShortName()));
}
}
$space_section->appendHint(
pht(
'After a user passes space policy checks, they must still pass '.
'object policy checks.'));
return $space_section;
}
private function getStrengthInformation(
PhabricatorPolicyInterface $object,
PhabricatorPolicy $policy,
$capability) {
$viewer = $this->getViewer();
$default_policy = PhabricatorPolicyQuery::getDefaultPolicyForObject(
$viewer,
$object,
$capability);
if (!$default_policy) {
return;
}
if ($default_policy->getPHID() == $policy->getPHID()) {
return;
}
if ($default_policy->isStrongerThan($policy)) {
$info = pht(
'This object has a less restrictive policy ("%s") than the default '.
'policy for similar objects (which is "%s").',
$policy->getShortName(),
$default_policy->getShortName());
} else if ($policy->isStrongerThan($default_policy)) {
$info = pht(
'This object has a more restrictive policy ("%s") than the default '.
'policy for similar objects (which is "%s").',
$policy->getShortName(),
$default_policy->getShortName());
} else {
$info = pht(
'This object has a different policy ("%s") than the default policy '.
'for similar objects (which is "%s").',
$policy->getShortName(),
$default_policy->getShortName());
}
return $info;
}
private function getCapabilityName($capability) {
$capability_name = $capability;
$capobj = PhabricatorPolicyCapability::getCapabilityByKey($capability);
if ($capobj) {
$capability_name = $capobj->getCapabilityName();
}
return $capability_name;
}
private function buildExtendedSection(
PhabricatorPolicyInterface $object,
$capability) {
$viewer = $this->getViewer();
if (!($object instanceof PhabricatorExtendedPolicyInterface)) {
return null;
}
$extended_rules = $object->getExtendedPolicy($capability, $viewer);
if (!$extended_rules) {
return null;
}
$items = array();
foreach ($extended_rules as $extended_rule) {
$extended_target = $extended_rule[0];
$extended_capabilities = (array)$extended_rule[1];
if (is_object($extended_target)) {
$extended_target = $extended_target->getPHID();
}
foreach ($extended_capabilities as $extended_capability) {
$ex_name = $this->getCapabilityName($extended_capability);
$items[] = array(
phutil_tag('strong', array(), pht('%s:', $ex_name)),
' ',
$viewer->renderHandle($extended_target)->setAsTag(true),
);
}
}
return id(new PHUIPolicySectionView())
->setViewer($viewer)
->setIcon('fa-link')
->setHeader(pht('Required Capabilities on Other Objects'))
->appendParagraph(
pht(
'To access this object, users must have first have access '.
'capabilities on these other objects:'))
->appendList($items);
}
private function buildExceptionsSection(
PhabricatorPolicyInterface $object,
$capability) {
$viewer = $this->getViewer();
$exceptions = PhabricatorPolicy::getSpecialRules(
$object,
$viewer,
$capability,
false);
if (!$exceptions) {
return null;
}
return id(new PHUIPolicySectionView())
->setViewer($viewer)
->setIcon('fa-unlock-alt red')
->setHeader(pht('Special Rules'))
->appendParagraph(
pht(
'This object has special rules which override normal object '.
'policy rules:'))
->appendList($exceptions);
}
private function buildObjectSection(
PhabricatorPolicyInterface $object,
PhabricatorPolicy $policy,
$capability,
PhabricatorObjectHandle $handle) {
$viewer = $this->getViewer();
$capability_name = $this->getCapabilityName($capability);
$object_section = id(new PHUIPolicySectionView())
->setViewer($viewer)
->setIcon($handle->getIcon().' bluegrey')
->setHeader(pht('Object Policy'))
->appendList(
array(
array(
phutil_tag('strong', array(), pht('%s:', $capability_name)),
' ',
$policy->getShortName(),
),
))
->appendParagraph(
pht(
'In detail, this means that these users can take this action, '.
'provided they pass all of the checks described above first:'))
->appendList(
array(
PhabricatorPolicy::getPolicyExplanation(
$viewer,
$policy->getPHID()),
));
$strength = $this->getStrengthInformation($object, $policy, $capability);
if ($strength) {
$object_section->appendHint($strength);
}
return $object_section;
}
}
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