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DrydockSFTPFilesystemInterface.php
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Mon, Nov 25, 15:17

DrydockSFTPFilesystemInterface.php
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<?php
final class DrydockSFTPFilesystemInterface extends DrydockFilesystemInterface {
private $passphraseSSHKey;
private function openCredentialsIfNotOpen() {
if ($this->passphraseSSHKey !== null) {
return;
}
$credential = id(new PassphraseCredentialQuery())
->setViewer(PhabricatorUser::getOmnipotentUser())
->withIDs(array($this->getConfig('credential')))
->needSecrets(true)
->executeOne();
if ($credential->getProvidesType() !==
PassphraseCredentialTypeSSHPrivateKey::PROVIDES_TYPE) {
throw new Exception(pht('Only private key credentials are supported.'));
}
$this->passphraseSSHKey = PassphraseSSHKey::loadFromPHID(
$credential->getPHID(),
PhabricatorUser::getOmnipotentUser());
}
private function getExecFuture($path) {
$this->openCredentialsIfNotOpen();
return new ExecFuture(
'sftp -o "StrictHostKeyChecking no" -P %s -i %P %P@%s',
$this->getConfig('port'),
$this->passphraseSSHKey->getKeyfileEnvelope(),
$this->passphraseSSHKey->getUsernameEnvelope(),
$this->getConfig('host'));
}
public function readFile($path) {
$target = new TempFile();
$future = $this->getExecFuture($path);
$future->write(csprintf('get %s %s', $path, $target));
$future->resolvex();
return Filesystem::readFile($target);
}
public function saveFile($path, $name) {
$data = $this->readFile($path);
$file = PhabricatorFile::newFromFileData(
$data,
array('name' => $name));
$file->setName($name);
$file->save();
return $file;
}
public function writeFile($path, $data) {
$source = new TempFile();
Filesystem::writeFile($source, $data);
$future = $this->getExecFuture($path);
$future->write(csprintf('put %s %s', $source, $path));
$future->resolvex();
}
}

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