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phorge/src/applications/differential/landing/DifferentialLandingToGitHub.php
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DifferentialLandingToGitHub.php
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<?php
final class DifferentialLandingToGitHub
extends DifferentialLandingStrategy {
private $account;
private $provider;
public function processLandRequest(
AphrontRequest $request,
DifferentialRevision $revision,
PhabricatorRepository $repository) {
$viewer = $request->getUser();
$this->init($viewer, $repository);
$workspace = $this->getGitWorkspace($repository);
try {
id(new DifferentialLandingToHostedGit())
->commitRevisionToWorkspace(
$revision,
$workspace,
$viewer);
} catch (Exception $e) {
throw new PhutilProxyException(
'Failed to commit patch',
$e);
}
try {
$this->pushWorkspaceRepository($repository, $workspace);
} catch (Exception $e) {
// If it's a permission problem, we know more than git.
$dialog = $this->verifyRemotePermissions($viewer, $revision, $repository);
if ($dialog) {
return $dialog;
}
// Else, throw what git said.
throw new PhutilProxyException(
'Failed to push changes upstream',
$e);
}
}
/**
* returns PhabricatorActionView or an array of PhabricatorActionView or null.
*/
public function createMenuItem(
PhabricatorUser $viewer,
DifferentialRevision $revision,
PhabricatorRepository $repository) {
$vcs = $repository->getVersionControlSystem();
if ($vcs !== PhabricatorRepositoryType::REPOSITORY_TYPE_GIT) {
return;
}
if ($repository->isHosted()) {
return;
}
try {
// These throw when failing.
$this->init($viewer, $repository);
$this->findGitHubRepo($repository);
} catch (Exception $e) {
return;
}
return $this->createActionView($revision, pht('Land to GitHub'))
->setIcon('fa-cloud-upload');
}
public function pushWorkspaceRepository(
PhabricatorRepository $repository,
ArcanistRepositoryAPI $workspace) {
$token = $this->getAccessToken();
$github_repo = $this->findGitHubRepo($repository);
$remote = urisprintf(
'https://%s:x-oauth-basic@%s/%s.git',
$token,
$this->provider->getProviderDomain(),
$github_repo);
$workspace->execxLocal(
'push %P HEAD:master',
new PhutilOpaqueEnvelope($remote));
}
private function init($viewer, $repository) {
$repo_uri = $repository->getRemoteURIObject();
$repo_domain = $repo_uri->getDomain();
$this->account = id(new PhabricatorExternalAccountQuery())
->setViewer($viewer)
->withUserPHIDs(array($viewer->getPHID()))
->withAccountTypes(array('github'))
->withAccountDomains(array($repo_domain))
->executeOne();
if (!$this->account) {
throw new Exception(
"No matching GitHub account found for {$repo_domain}.");
}
$this->provider = PhabricatorAuthProvider::getEnabledProviderByKey(
$this->account->getProviderKey());
if (!$this->provider) {
throw new Exception("GitHub provider for {$repo_domain} is not enabled.");
}
}
private function findGitHubRepo(PhabricatorRepository $repository) {
$repo_uri = $repository->getRemoteURIObject();
$repo_path = $repo_uri->getPath();
if (substr($repo_path, -4) == '.git') {
$repo_path = substr($repo_path, 0, -4);
}
$repo_path = ltrim($repo_path, '/');
return $repo_path;
}
private function getAccessToken() {
return $this->provider->getOAuthAccessToken($this->account);
}
private function verifyRemotePermissions($viewer, $revision, $repository) {
$github_user = $this->account->getUsername();
$github_repo = $this->findGitHubRepo($repository);
$uri = urisprintf(
'https://api.github.com/repos/%s/collaborators/%s',
$github_repo,
$github_user);
$uri = new PhutilURI($uri);
$uri->setQueryParam('access_token', $this->getAccessToken());
list($status, $body, $headers) = id(new HTTPSFuture($uri))->resolve();
// Likely status codes:
// 204 No Content: Has permissions. Token might be too weak.
// 404 Not Found: Not a collaborator.
// 401 Unauthorized: Token is bad/revoked.
$no_permission = ($status->getStatusCode() == 404);
if ($no_permission) {
throw new Exception(
"You don't have permission to push to this repository. \n".
"Push permissions for this repository are managed on GitHub.");
}
$scopes = BaseHTTPFuture::getHeader($headers, 'X-OAuth-Scopes');
if (strpos($scopes, 'public_repo') === false) {
$provider_key = $this->provider->getProviderKey();
$refresh_token_uri = new PhutilURI("/auth/refresh/{$provider_key}/");
$refresh_token_uri->setQueryParam('scope', 'public_repo');
return id(new AphrontDialogView())
->setUser($viewer)
->setTitle(pht('Stronger token needed'))
->appendChild(pht(
'In order to complete this action, you need a '.
'stronger GitHub token.'))
->setSubmitURI($refresh_token_uri)
->addCancelButton('/D'.$revision->getId())
->setDisableWorkflowOnSubmit(true)
->addSubmitButton(pht('Refresh Account Link'));
}
}
}

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