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phab/src/applications/diffusion/gitlfs/DiffusionGitLFSAuthenticateWorkflow.php
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DiffusionGitLFSAuthenticateWorkflow.php
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<?php
final class DiffusionGitLFSAuthenticateWorkflow
extends DiffusionGitSSHWorkflow {
protected function didConstruct() {
$this->setName('git-lfs-authenticate');
$this->setArguments(
array(
array(
'name' => 'argv',
'wildcard' => true,
),
));
}
protected function identifyRepository() {
return $this->loadRepositoryWithPath($this->getLFSPathArgument());
}
private function getLFSPathArgument() {
return $this->getLFSArgument(0);
}
private function getLFSOperationArgument() {
return $this->getLFSArgument(1);
}
private function getLFSArgument($position) {
$args = $this->getArgs();
$argv = $args->getArg('argv');
if (!isset($argv[$position])) {
throw new Exception(
pht(
'Expected `git-lfs-authenticate <path> <operation>`, but received '.
'too few arguments.'));
}
return $argv[$position];
}
protected function executeRepositoryOperations() {
$operation = $this->getLFSOperationArgument();
// NOTE: We aren't checking write access here, even for "upload". The
// HTTP endpoint should be able to do that for us.
switch ($operation) {
case 'upload':
case 'download':
break;
default:
throw new Exception(
pht(
'Git LFS operation "%s" is not supported by this server.',
$operation));
}
$repository = $this->getRepository();
if (!$repository->isGit()) {
throw new Exception(
pht(
'Repository "%s" is not a Git repository. Git LFS is only '.
'supported for Git repositories.',
$repository->getDisplayName()));
}
if (!$repository->canUseGitLFS()) {
throw new Exception(
pht('Git LFS is not enabled for this repository.'));
}
// NOTE: This is usually the same as the default URI (which does not
// need to be specified in the response), but the protocol or domain may
// differ in some situations.
$lfs_uri = $repository->getGitLFSURI('info/lfs');
// Generate a temporary token to allow the user to acces LFS over HTTP.
// This works even if normal HTTP repository operations are not available
// on this host, and does not require the user to have a VCS password.
$user = $this->getUser();
$authorization = DiffusionGitLFSTemporaryTokenType::newHTTPAuthorization(
$repository,
$user,
$operation);
$headers = array(
'authorization' => $authorization,
);
$result = array(
'header' => $headers,
'href' => $lfs_uri,
);
$result = phutil_json_encode($result);
$this->writeIO($result);
$this->waitForGitClient();
return 0;
}
}
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