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phorge/src/applications/drydock/interface/command/DrydockSSHCommandInterface.php
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DrydockSSHCommandInterface.php
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<?php
final class DrydockSSHCommandInterface extends DrydockCommandInterface {
private $passphraseSSHKey;
private $connectTimeout;
private function openCredentialsIfNotOpen() {
if ($this->passphraseSSHKey !== null) {
return;
}
$credential = id(new PassphraseCredentialQuery())
->setViewer(PhabricatorUser::getOmnipotentUser())
->withIDs(array($this->getConfig('credential')))
->needSecrets(true)
->executeOne();
if ($credential === null) {
throw new Exception(
pht(
'There is no credential with ID %d.',
$this->getConfig('credential')));
}
if ($credential->getProvidesType() !==
PassphraseCredentialTypeSSHPrivateKey::PROVIDES_TYPE) {
throw new Exception(pht('Only private key credentials are supported.'));
}
$this->passphraseSSHKey = PassphraseSSHKey::loadFromPHID(
$credential->getPHID(),
PhabricatorUser::getOmnipotentUser());
}
public function setConnectTimeout($timeout) {
$this->connectTimeout = $timeout;
return $this;
}
public function getExecFuture($command) {
$this->openCredentialsIfNotOpen();
$argv = func_get_args();
if ($this->getConfig('platform') === 'windows') {
// Handle Windows by executing the command under PowerShell.
$command = id(new PhutilCommandString($argv))
->setEscapingMode(PhutilCommandString::MODE_POWERSHELL);
$change_directory = '';
if ($this->getWorkingDirectory() !== null) {
$change_directory .= 'cd '.$this->getWorkingDirectory();
}
$script = <<<EOF
$change_directory
$command
if (\$LastExitCode -ne 0) {
exit \$LastExitCode
}
EOF;
// When Microsoft says "Unicode" they don't mean UTF-8.
$script = mb_convert_encoding($script, 'UTF-16LE');
$script = base64_encode($script);
$powershell =
'C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\powershell.exe';
$powershell .=
' -ExecutionPolicy Bypass'.
' -NonInteractive'.
' -InputFormat Text'.
' -OutputFormat Text'.
' -EncodedCommand '.$script;
$full_command = $powershell;
} else {
// Handle UNIX by executing under the native shell.
$argv = $this->applyWorkingDirectoryToArgv($argv);
$full_command = call_user_func_array('csprintf', $argv);
}
$command_timeout = '';
if ($this->connectTimeout !== null) {
$command_timeout = csprintf(
'-o %s',
'ConnectTimeout='.$this->connectTimeout);
}
return new ExecFuture(
'ssh '.
'-o LogLevel=quiet '.
'-o StrictHostKeyChecking=no '.
'-o UserKnownHostsFile=/dev/null '.
'-o BatchMode=yes '.
'%C -p %s -i %P %P@%s -- %s',
$command_timeout,
$this->getConfig('port'),
$this->passphraseSSHKey->getKeyfileEnvelope(),
$this->passphraseSSHKey->getUsernameEnvelope(),
$this->getConfig('host'),
$full_command);
}
}

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