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<?php |
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/* (c) Anton Medvedev <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Deployer\Component\Ssh; |
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use Deployer\Deployer; |
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use Deployer\Exception\RunException; |
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use Deployer\Host\Host; |
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use Deployer\Component\ProcessRunner\Printer; |
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use Deployer\Logger\Logger; |
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use Symfony\Component\Console\Output\OutputInterface; |
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use Symfony\Component\Process\Exception\ProcessTimedOutException; |
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use Symfony\Component\Process\Process; |
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class Client |
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{ |
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private $output; |
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private $pop; |
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private $logger; |
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public function __construct(OutputInterface $output, Printer $pop, Logger $logger) |
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{ |
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$this->output = $output; |
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$this->pop = $pop; |
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$this->logger = $logger; |
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} |
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public function run(Host $host, string $command, array $config = []) |
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{ |
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$connectionString = $host->getConnectionString(); |
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$defaults = [ |
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'timeout' => $host->get('default_timeout', 300), |
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'idle_timeout' => null, |
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]; |
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$config = array_merge($defaults, $config); |
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$sshArguments = $host->getSshArguments(); |
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if ($host->getSshMultiplexing()) { |
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$sshArguments = $this->initMultiplexing($host); |
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} |
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$become = ''; |
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if ($host->has('become')) { |
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$become = sprintf('sudo -H -u %s', $host->get('become')); |
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} |
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$shellCommand = $host->getShell(); |
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if (strtolower(substr(PHP_OS, 0, 3)) === 'win') { |
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$ssh = "ssh $sshArguments $connectionString $become \"$shellCommand; printf '[exit_code:%s]' $?;\""; |
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} else { |
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$ssh = "ssh $sshArguments $connectionString $become '$shellCommand; printf \"[exit_code:%s]\" $?;'"; |
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} |
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// -vvv for ssh command |
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if ($this->output->isDebug()) { |
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$this->pop->writeln(Process::OUT, $host, "$ssh"); |
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} |
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$this->pop->command($host, $command); |
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$this->logger->log("[{$host->getAlias()}] run $command"); |
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$terminalOutput = $this->pop->callback($host); |
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$callback = function ($type, $buffer) use ($host, $terminalOutput) { |
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$this->logger->printBuffer($host, $type, $buffer); |
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$terminalOutput($type, $buffer); |
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}; |
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$command = str_replace('%secret%', $config['secret'] ?? '', $command); |
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$command = str_replace('%sudo_pass%', $config['sudo_pass'] ?? '', $command); |
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$process = Process::fromShellCommandline($ssh); |
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$process |
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->setInput($command) |
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->setTimeout($config['timeout']) |
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->setIdleTimeout($config['idle_timeout']); |
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$process->run($callback); |
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$output = $this->pop->filterOutput($process->getOutput()); |
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$exitCode = $this->parseExitStatus($process); |
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if ($exitCode !== 0) { |
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throw new RunException( |
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$host, |
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$command, |
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$exitCode, |
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$output, |
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$process->getErrorOutput() |
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); |
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} |
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return $output; |
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} |
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private function parseExitStatus(Process $process) |
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{ |
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$output = $process->getOutput(); |
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preg_match('/\[exit_code:(.*?)\]/', $output, $match); |
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if (!isset($match[1])) { |
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return -1; |
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} |
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$exitCode = (int)$match[1]; |
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return $exitCode; |
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} |
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public function connect(Host $host) |
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{ |
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if ($host->getSshMultiplexing()) { |
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$this->initMultiplexing($host); |
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} |
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} |
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private function initMultiplexing(Host $host) |
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{ |
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$sshArguments = $host->getSshArguments()->withMultiplexing($host); |
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if (!$this->isMasterRunning($host, $sshArguments)) { |
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$connectionString = $host->getConnectionString(); |
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$command = "ssh -N $sshArguments $connectionString"; |
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if ($this->output->isDebug()) { |
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$this->pop->writeln(Process::OUT, $host, '<info>ssh multiplexing initialization</info>'); |
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$this->pop->writeln(Process::OUT, $host, $command); |
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} |
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$process = Process::fromShellCommandline($command); |
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$process->setTimeout(30); // Connection timeout (time needed to establish ssh multiplexing) |
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try { |
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$process->mustRun(); |
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} catch (ProcessTimedOutException $exception) { |
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// Timeout fired: maybe there is no connection, |
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// or maybe another process established master connection. |
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// Let's try proceed anyway. |
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// TODO: Make sure only one at a time "ssh multiplexing initialization" is running. For example by doing it in master PHP process (ParallelExecutor). |
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} |
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$output = $process->getOutput(); |
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if ($this->output->isDebug()) { |
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$this->pop->printBuffer(Process::OUT, $host, $output); |
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} |
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} |
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return $sshArguments; |
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} |
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private function isMasterRunning(Host $host, Arguments $sshArguments) |
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{ |
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$command = "ssh -O check $sshArguments echo 2>&1"; |
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if ($this->output->isDebug()) { |
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$this->pop->printBuffer(Process::OUT, $host, $command); |
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} |
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$process = Process::fromShellCommandline($command); |
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$process->run(); |
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$output = $process->getOutput(); |
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if ($this->output->isDebug()) { |
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$this->pop->printBuffer(Process::OUT, $host, $output); |
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} |
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return (bool)preg_match('/Master running/', $output); |
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} |
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} |
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deployphp /
deployer
