DrydockSSHCommandInterface.php
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DrydockSSHCommandInterface.php
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	<?php

	final class DrydockSSHCommandInterface extends DrydockCommandInterface {

	private $credential;
	private $connectTimeout;

	private function loadCredential() {
	if ($this->credential === null) {
	$credential_phid = $this->getConfig('credentialPHID');

	$this->credential = PassphraseSSHKey::loadFromPHID(
	$credential_phid,
	PhabricatorUser::getOmnipotentUser());
	}

	return $this->credential;
	}

	public function setConnectTimeout($timeout) {
	$this->connectTimeout = $timeout;
	return $this;
	}

	public function getExecFuture($command) {
	$credential = $this->loadCredential();

	$argv = func_get_args();
	$argv = $this->applyWorkingDirectoryToArgv($argv);
	$full_command = call_user_func_array('csprintf', $argv);

	$flags = array();

	// See T13121. Attempt to suppress the "Permanently added X to list of
	// known hosts" message without suppressing anything important.
	$flags[] = '-o';
	$flags[] = 'LogLevel=ERROR';

	$flags[] = '-o';
	$flags[] = 'StrictHostKeyChecking=no';

	$flags[] = '-o';
	$flags[] = 'UserKnownHostsFile=/dev/null';

	$flags[] = '-o';
	$flags[] = 'BatchMode=yes';

	if ($this->connectTimeout) {
	$flags[] = '-o';
	$flags[] = 'ConnectTimeout='.$this->connectTimeout;
	}

	return new ExecFuture(
	'ssh %Ls -l %P -p %s -i %P %s -- %s',
	$flags,
	$credential->getUsernameEnvelope(),
	$this->getConfig('port'),
	$credential->getKeyfileEnvelope(),
	$this->getConfig('host'),
	$full_command);
	}
	}