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phorge/src/applications/diffusion/conduit/DiffusionQueryConduitAPIMethod.php
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DiffusionQueryConduitAPIMethod.php
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<?php
abstract class DiffusionQueryConduitAPIMethod
extends DiffusionConduitAPIMethod {
public function shouldAllowPublic() {
return true;
}
private $diffusionRequest;
private $repository;
protected function setDiffusionRequest(DiffusionRequest $request) {
$this->diffusionRequest = $request;
return $this;
}
protected function getDiffusionRequest() {
return $this->diffusionRequest;
}
protected function getRepository(ConduitAPIRequest $request) {
return $this->getDiffusionRequest()->getRepository();
}
final protected function defineErrorTypes() {
return $this->defineCustomErrorTypes() +
array(
'ERR-UNKNOWN-REPOSITORY' =>
pht('There is no matching repository.'),
'ERR-UNKNOWN-VCS-TYPE' =>
pht('Unknown repository VCS type.'),
'ERR-UNSUPPORTED-VCS' =>
pht('VCS is not supported for this method.'),
);
}
/**
* Subclasses should override this to specify custom error types.
*/
protected function defineCustomErrorTypes() {
return array();
}
final protected function defineParamTypes() {
return $this->defineCustomParamTypes() +
array(
'callsign' => 'optional string (deprecated)',
'repository' => 'optional string',
'branch' => 'optional string',
);
}
/**
* Subclasses should override this to specify custom param types.
*/
protected function defineCustomParamTypes() {
return array();
}
/**
* Subclasses should override these methods with the proper result for the
* pertinent version control system, e.g. getGitResult for Git.
*
* If the result is not supported for that VCS, do not implement it. e.g.
* Subversion (SVN) does not support branches.
*/
protected function getGitResult(ConduitAPIRequest $request) {
throw new ConduitException('ERR-UNSUPPORTED-VCS');
}
protected function getSVNResult(ConduitAPIRequest $request) {
throw new ConduitException('ERR-UNSUPPORTED-VCS');
}
protected function getMercurialResult(ConduitAPIRequest $request) {
throw new ConduitException('ERR-UNSUPPORTED-VCS');
}
/**
* This method is final because most queries will need to construct a
* @{class:DiffusionRequest} and use it. Consolidating this codepath and
* enforcing @{method:getDiffusionRequest} works when we need it is good.
*
* @{method:getResult} should be overridden by subclasses as necessary, e.g.
* there is a common operation across all version control systems that
* should occur after @{method:getResult}, like formatting a timestamp.
*/
final protected function execute(ConduitAPIRequest $request) {
$drequest = $this->getDiffusionRequest();
// We pass this flag on to prevent proxying of any other Conduit calls
// which we need to make in order to respond to this one. Although we
// could safely proxy them, we take a big performance hit in the common
// case, and doing more proxying wouldn't exercise any additional code so
// we wouldn't gain a testability/predictability benefit.
$is_cluster_request = $request->getIsClusterRequest();
$drequest->setIsClusterRequest($is_cluster_request);
$viewer = $request->getViewer();
$repository = $drequest->getRepository();
// TODO: Allow web UI queries opt out of this if they don't care about
// fetching the most up-to-date data? Synchronization can be slow, and a
// lot of web reads are probably fine if they're a few seconds out of
// date.
id(new DiffusionRepositoryClusterEngine())
->setViewer($viewer)
->setRepository($repository)
->synchronizeWorkingCopyBeforeRead();
return $this->getResult($request);
}
protected function newConduitCallProxyClient(ConduitAPIRequest $request) {
$viewer = $request->getViewer();
$identifier = $request->getValue('repository');
if ($identifier === null) {
$identifier = $request->getValue('callsign');
}
$drequest = DiffusionRequest::newFromDictionary(
array(
'user' => $viewer,
'repository' => $identifier,
'branch' => $request->getValue('branch'),
'path' => $request->getValue('path'),
'commit' => $request->getValue('commit'),
));
if (!$drequest) {
throw new Exception(
pht(
'Repository "%s" is not a valid repository.',
$identifier));
}
$repository = $drequest->getRepository();
$client = $repository->newConduitClientForRequest($request);
if ($client) {
return $client;
}
$this->setDiffusionRequest($drequest);
return null;
}
protected function getResult(ConduitAPIRequest $request) {
$repository = $this->getRepository($request);
$result = null;
switch ($repository->getVersionControlSystem()) {
case PhabricatorRepositoryType::REPOSITORY_TYPE_GIT:
$result = $this->getGitResult($request);
break;
case PhabricatorRepositoryType::REPOSITORY_TYPE_MERCURIAL:
$result = $this->getMercurialResult($request);
break;
case PhabricatorRepositoryType::REPOSITORY_TYPE_SVN:
$result = $this->getSVNResult($request);
break;
default:
throw new ConduitException('ERR-UNKNOWN-VCS-TYPE');
}
return $result;
}
}

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