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RemoteCommandBuildStepImplementation.php
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Created
Sat, Feb 15, 07:32

RemoteCommandBuildStepImplementation.php
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<?php
final class RemoteCommandBuildStepImplementation
extends VariableBuildStepImplementation {
public function getName() {
return pht('Run Remote Command');
}
public function getGenericDescription() {
return pht('Run a command on another machine.');
}
public function getDescription() {
$settings = $this->getSettings();
return pht(
'Run \'%s\' on \'%s\'.',
$settings['command'],
$settings['sshhost']);
}
public function execute(
HarbormasterBuild $build,
HarbormasterBuildTarget $build_target) {
$settings = $this->getSettings();
$variables = $build_target->getVariables();
$command = $this->mergeVariables(
'vcsprintf',
$settings['command'],
$variables);
$future = null;
if (empty($settings['sshkey'])) {
$future = new ExecFuture(
'ssh -o "StrictHostKeyChecking no" -p %s %s %s',
$settings['sshport'],
$settings['sshuser'].'@'.$settings['sshhost'],
$command);
} else {
$future = new ExecFuture(
'ssh -o "StrictHostKeyChecking no" -p %s -i %s %s %s',
$settings['sshport'],
$settings['sshkey'],
$settings['sshuser'].'@'.$settings['sshhost'],
$command);
}
$log_stdout = $build->createLog($build_target, "remote", "stdout");
$log_stderr = $build->createLog($build_target, "remote", "stderr");
$start_stdout = $log_stdout->start();
$start_stderr = $log_stderr->start();
// Read the next amount of available output every second.
while (!$future->isReady()) {
list($stdout, $stderr) = $future->read();
$log_stdout->append($stdout);
$log_stderr->append($stderr);
$future->discardBuffers();
// Check to see if we have moved from a "Building" status. This
// can occur if the user cancels the build, in which case we want
// to terminate whatever we're doing and return as quickly as possible.
if ($build->checkForCancellation()) {
$log_stdout->finalize($start_stdout);
$log_stderr->finalize($start_stderr);
$future->resolveKill();
return;
}
// Wait one second before querying for more data.
sleep(1);
}
// Get the return value so we can log that as well.
list($err) = $future->resolve();
// Retrieve the last few bits of information.
list($stdout, $stderr) = $future->read();
$log_stdout->append($stdout);
$log_stderr->append($stderr);
$future->discardBuffers();
$log_stdout->finalize($start_stdout);
$log_stderr->finalize($start_stderr);
if ($err) {
$build->setBuildStatus(HarbormasterBuild::STATUS_FAILED);
}
}
public function validateSettings() {
$settings = $this->getSettings();
if ($settings['command'] === null || !is_string($settings['command'])) {
return false;
}
if ($settings['sshhost'] === null || !is_string($settings['sshhost'])) {
return false;
}
if ($settings['sshuser'] === null || !is_string($settings['sshuser'])) {
return false;
}
if ($settings['sshkey'] === null || !is_string($settings['sshkey'])) {
return false;
}
if ($settings['sshport'] === null || !is_int($settings['sshport']) ||
$settings['sshport'] <= 0 || $settings['sshport'] >= 65536) {
return false;
}
$whitelist = PhabricatorEnv::getEnvConfig(
'harbormaster.temporary.hosts.whitelist');
if (!in_array($settings['sshhost'], $whitelist)) {
return false;
}
return true;
}
public function getSettingDefinitions() {
return array(
'command' => array(
'name' => 'Command',
'description' => 'The command to execute on the remote machine.',
'type' => BuildStepImplementation::SETTING_TYPE_STRING),
'sshhost' => array(
'name' => 'SSH Host',
'description' => 'The SSH host that the command will be run on.',
'type' => BuildStepImplementation::SETTING_TYPE_STRING),
'sshport' => array(
'name' => 'SSH Port',
'description' => 'The SSH port to connect to.',
'type' => BuildStepImplementation::SETTING_TYPE_INTEGER,
'default' => 22), // TODO: 'default' doesn't do anything yet..
'sshuser' => array(
'name' => 'SSH Username',
'description' => 'The SSH username to use.',
'type' => BuildStepImplementation::SETTING_TYPE_STRING),
'sshkey' => array(
'name' => 'SSH Identity File',
'description' =>
'The path to the SSH identity file (private key) '.
'on the local web server.',
'type' => BuildStepImplementation::SETTING_TYPE_STRING));
}
}

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