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vendor/symfony/mailer/Transport/Smtp/Stream/ProcessStream.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Mailer\Transport\Smtp\Stream;
+
+use Symfony\Component\Mailer\Exception\TransportException;
+
+/**
+ * A stream supporting local processes.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Chris Corbyn
+ *
+ * @internal
+ */
+final class ProcessStream extends AbstractStream
+{
+    private string $command;
+
+    public function setCommand(string $command): void
+    {
+        $this->command = $command;
+    }
+
+    public function initialize(): void
+    {
+        $descriptorSpec = [
+            0 => ['pipe', 'r'],
+            1 => ['pipe', 'w'],
+            2 => ['pipe', '\\' === \DIRECTORY_SEPARATOR ? 'a' : 'w'],
+        ];
+        $pipes = [];
+        $this->stream = proc_open($this->command, $descriptorSpec, $pipes);
+        stream_set_blocking($pipes[2], false);
+        if ($err = stream_get_contents($pipes[2])) {
+            throw new TransportException('Process could not be started: '.$err);
+        }
+        $this->in = &$pipes[0];
+        $this->out = &$pipes[1];
+        $this->err = &$pipes[2];
+    }
+
+    public function terminate(): void
+    {
+        if (null !== $this->stream) {
+            fclose($this->in);
+            $out = stream_get_contents($this->out);
+            fclose($this->out);
+            $err = stream_get_contents($this->err);
+            fclose($this->err);
+            if (0 !== $exitCode = proc_close($this->stream)) {
+                throw new TransportException('Process failed with exit code '.$exitCode.': '.$out.$err);
+            }
+        }
+
+        parent::terminate();
+    }
+
+    protected function getReadConnectionDescription(): string
+    {
+        return 'process '.$this->command;
+    }
+}