1 files changed, 55 insertions, 0 deletions
diff --git a/vendor/swiftmailer/classes/Swift/Mime/HeaderEncoder/Base64HeaderEncoder.php b/vendor/swiftmailer/classes/Swift/Mime/HeaderEncoder/Base64HeaderEncoder.php
new file mode 100644
index 00000000..6dbc6edc
--- /dev/null
+++ b/vendor/swiftmailer/classes/Swift/Mime/HeaderEncoder/Base64HeaderEncoder.php
@@ -0,0 +1,55 @@
+<?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.
+ */
+
+/**
+ * Handles Base64 (B) Header Encoding in Swift Mailer.
+ *
+ * @author     Chris Corbyn
+ */
+class Swift_Mime_HeaderEncoder_Base64HeaderEncoder extends Swift_Encoder_Base64Encoder implements Swift_Mime_HeaderEncoder
+{
+    /**
+     * Get the name of this encoding scheme.
+     * Returns the string 'B'.
+     *
+     * @return string
+     */
+    public function getName()
+    {
+        return 'B';
+    }
+
+    /**
+     * Takes an unencoded string and produces a Base64 encoded string from it.
+     *
+     * If the charset is iso-2022-jp, it uses mb_encode_mimeheader instead of
+     * default encodeString, otherwise pass to the parent method.
+     *
+     * @param string  $string          string to encode
+     * @param int     $firstLineOffset
+     * @param int     $maxLineLength   optional, 0 indicates the default of 76 bytes
+     * @param string  $charset
+     *
+     * @return string
+     */
+    public function encodeString($string, $firstLineOffset = 0, $maxLineLength = 0, $charset = 'utf-8')
+    {
+        if (strtolower($charset) === 'iso-2022-jp') {
+            $old = mb_internal_encoding();
+            mb_internal_encoding('utf-8');
+            $newstring = mb_encode_mimeheader($string, $charset, $this->getName(), "\r\n");
+            mb_internal_encoding($old);
+
+            return $newstring;
+        }
+
+        return parent::encodeString($string, $firstLineOffset, $maxLineLength);
+    }
+}