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include/swiftmailer/lib/classes/Swift/Mime/IdGenerator.php

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+<?php
+
+/*
+ * This file is part of SwiftMailer.
+ * (c) 2004-2009 Chris Corbyn
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+/**
+ * Message ID generator.
+ */
+class Swift_Mime_IdGenerator implements Swift_IdGenerator
+{
+    private $idRight;
+
+    /**
+     * @param string $idRight
+     */
+    public function __construct($idRight)
+    {
+        $this->idRight = $idRight;
+    }
+
+    /**
+     * Returns the right-hand side of the "@" used in all generated IDs.
+     *
+     * @return string
+     */
+    public function getIdRight()
+    {
+        return $this->idRight;
+    }
+
+    /**
+     * Sets the right-hand side of the "@" to use in all generated IDs.
+     *
+     * @param string $idRight
+     */
+    public function setIdRight($idRight)
+    {
+        $this->idRight = $idRight;
+    }
+
+    /**
+     * @return string
+     */
+    public function generateId()
+    {
+        // 32 hex values for the left part
+        return bin2hex(random_bytes(16)).'@'.$this->idRight;
+    }
+}