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-rw-r--r--plugins/enigma/lib/enigma_mime_message.php299
1 files changed, 299 insertions, 0 deletions
diff --git a/plugins/enigma/lib/enigma_mime_message.php b/plugins/enigma/lib/enigma_mime_message.php
new file mode 100644
index 000000000..feed78e03
--- /dev/null
+++ b/plugins/enigma/lib/enigma_mime_message.php
@@ -0,0 +1,299 @@
+<?php
+/*
+ +-------------------------------------------------------------------------+
+ | Mail_mime wrapper for the Enigma Plugin |
+ | |
+ | Copyright (C) 2010-2015 The Roundcube Dev Team |
+ | |
+ | Licensed under the GNU General Public License version 3 or |
+ | any later version with exceptions for skins & plugins. |
+ | See the README file for a full license statement. |
+ | |
+ +-------------------------------------------------------------------------+
+ | Author: Aleksander Machniak <alec@alec.pl> |
+ +-------------------------------------------------------------------------+
+*/
+
+class enigma_mime_message extends Mail_mime
+{
+ const PGP_SIGNED = 1;
+ const PGP_ENCRYPTED = 2;
+
+ protected $_type;
+ protected $_message;
+ protected $_body;
+ protected $_signature;
+ protected $_encrypted;
+
+
+ /**
+ * Object constructor
+ *
+ * @param Mail_mime Original message
+ * @param int Output message type
+ */
+ function __construct($message, $type)
+ {
+ $this->_message = $message;
+ $this->_type = $type;
+
+ // clone parameters
+ foreach (array_keys($this->_build_params) as $param) {
+ $this->_build_params[$param] = $message->getParam($param);
+ }
+
+ // clone headers
+ $this->_headers = $message->_headers;
+
+/*
+ if ($message->getParam('delay_file_io')) {
+ // use common temp dir
+ $temp_dir = $this->config->get('temp_dir');
+ $body_file = tempnam($temp_dir, 'rcmMsg');
+ $mime_result = $message->saveMessageBody($body_file);
+
+ if (is_a($mime_result, 'PEAR_Error')) {
+ self::raise_error(array('code' => 650, 'type' => 'php',
+ 'file' => __FILE__, 'line' => __LINE__,
+ 'message' => "Could not create message: ".$mime_result->getMessage()),
+ true, false);
+ return false;
+ }
+
+ $msg_body = fopen($body_file, 'r');
+ }
+ else {
+*/
+ // \r\n is must-have here
+ $this->_body = $message->get() . "\r\n";
+/*
+ }
+*/
+ }
+
+ /**
+ * Check if the message is multipart (requires PGP/MIME)
+ *
+ * @return bool True if it is multipart, otherwise False
+ */
+ function isMultipart()
+ {
+ return $this->_message instanceof enigma_mime_message
+ || !empty($this->_message->_parts) || $this->_message->getHTMLBody();
+ }
+
+ /**
+ * Get e-mail address of message sender
+ *
+ * @return string Sender address
+ */
+ function getFromAddress()
+ {
+ // get sender address
+ $headers = $this->_message->headers();
+ $from = rcube_mime::decode_address_list($headers['From'], 1, false, null, true);
+ $from = $from[1];
+
+ return $from;
+ }
+
+ /**
+ * Get recipients' e-mail addresses
+ *
+ * @return array Recipients' addresses
+ */
+ function getRecipients()
+ {
+ // get sender address
+ $headers = $this->_message->headers();
+ $to = rcube_mime::decode_address_list($headers['To'], null, false, null, true);
+ $cc = rcube_mime::decode_address_list($headers['Cc'], null, false, null, true);
+ $bcc = rcube_mime::decode_address_list($headers['Bcc'], null, false, null, true);
+
+ $recipients = array_unique(array_merge($to, $cc, $bcc));
+ $recipients = array_diff($recipients, array('undisclosed-recipients:'));
+
+ return $recipients;
+ }
+
+ /**
+ * Get original message body, to be encrypted/signed
+ *
+ * @return string Message body
+ */
+ function getOrigBody()
+ {
+ $_headers = $this->_message->headers();
+ $headers = array();
+
+ if ($_headers['Content-Transfer-Encoding']) {
+ $headers[] = 'Content-Transfer-Encoding: ' . $_headers['Content-Transfer-Encoding'];
+ }
+ $headers[] = 'Content-Type: ' . $_headers['Content-Type'];
+
+ return implode("\r\n", $headers) . "\r\n\r\n" . $this->_body;
+ }
+
+ /**
+ * Register signature attachment
+ *
+ * @param string Signature body
+ */
+ function addPGPSignature($body)
+ {
+ $this->_signature = $body;
+ }
+
+ /**
+ * Register encrypted body
+ *
+ * @param string Encrypted body
+ */
+ function setPGPEncryptedBody($body)
+ {
+ $this->_encrypted = $body;
+ }
+
+ /**
+ * Builds the multipart message.
+ *
+ * @param array $params Build parameters that change the way the email
+ * is built. Should be associative. See $_build_params.
+ * @param resource $filename Output file where to save the message instead of
+ * returning it
+ * @param boolean $skip_head True if you want to return/save only the message
+ * without headers
+ *
+ * @return mixed The MIME message content string, null or PEAR error object
+ * @access public
+ */
+ function get($params = null, $filename = null, $skip_head = false)
+ {
+ if (isset($params)) {
+ while (list($key, $value) = each($params)) {
+ $this->_build_params[$key] = $value;
+ }
+ }
+
+ $this->_checkParams();
+
+ if ($this->_type == self::PGP_SIGNED) {
+ $body = "This is an OpenPGP/MIME signed message (RFC 4880 and 3156)";
+ $params = array(
+ 'content_type' => "multipart/signed; micalg=pgp-sha1; protocol=\"application/pgp-signature\"",
+ 'eol' => $this->_build_params['eol'],
+ );
+
+ $message = new Mail_mimePart($body, $params);
+
+ if (!empty($this->_body)) {
+ $headers = $this->_message->headers();
+ $params = array('content_type' => $headers['Content-Type']);
+
+ if ($headers['Content-Transfer-Encoding']) {
+ $params['encoding'] = $headers['Content-Transfer-Encoding'];
+ }
+
+ $message->addSubpart($this->_body, $params);
+ }
+
+ if (!empty($this->_signature)) {
+ $message->addSubpart($this->_signature, array(
+ 'filename' => 'signature.asc',
+ 'content_type' => 'application/pgp-signature',
+ 'disposition' => 'attachment',
+ 'description' => 'OpenPGP digital signature',
+ ));
+ }
+ }
+ else if ($this->_type == self::PGP_ENCRYPTED) {
+ $body = "This is an OpenPGP/MIME encrypted message (RFC 4880 and 3156)";
+ $params = array(
+ 'content_type' => "multipart/encrypted; protocol=\"application/pgp-encrypted\"",
+ 'eol' => $this->_build_params['eol'],
+ );
+
+ $message = new Mail_mimePart($body, $params);
+
+ $message->addSubpart('Version: 1', array(
+ 'content_type' => 'application/pgp-encrypted',
+ 'description' => 'PGP/MIME version identification',
+ ));
+
+ $message->addSubpart($this->_encrypted, array(
+ 'content_type' => 'application/octet-stream',
+ 'description' => 'PGP/MIME encrypted message',
+ 'disposition' => 'inline',
+ 'filename' => 'encrypted.asc',
+ ));
+ }
+
+ // Use saved boundary
+ if (!empty($this->_build_params['boundary'])) {
+ $boundary = $this->_build_params['boundary'];
+ }
+ else {
+ $boundary = null;
+ }
+
+ // Write output to file
+ if ($filename) {
+ // Append mimePart message headers and body into file
+ $headers = $message->encodeToFile($filename, $boundary, $skip_head);
+ if ($this->_isError($headers)) {
+ return $headers;
+ }
+ $this->_headers = array_merge($this->_headers, $headers);
+ return null;
+ }
+ else {
+ $output = $message->encode($boundary, $skip_head);
+ if ($this->_isError($output)) {
+ return $output;
+ }
+ $this->_headers = array_merge($this->_headers, $output['headers']);
+ return $output['body'];
+ }
+ }
+
+ /**
+ * Get Content-Type and Content-Transfer-Encoding headers of the message
+ *
+ * @return array Headers array
+ * @access private
+ */
+ function _contentHeaders()
+ {
+ $this->_checkParams();
+
+ $eol = !empty($this->_build_params['eol']) ? $this->_build_params['eol'] : "\r\n";
+
+ // multipart message: and boundary
+ if (!empty($this->_build_params['boundary'])) {
+ $boundary = $this->_build_params['boundary'];
+ }
+ else if (!empty($this->_headers['Content-Type'])
+ && preg_match('/boundary="([^"]+)"/', $this->_headers['Content-Type'], $m)
+ ) {
+ $boundary = $m[1];
+ }
+ else {
+ $boundary = '=_' . md5(rand() . microtime());
+ }
+
+ $this->_build_params['boundary'] = $boundary;
+
+ if ($this->_type == self::PGP_SIGNED) {
+ $headers['Content-Type'] = "multipart/signed; micalg=pgp-sha1;$eol"
+ ." protocol=\"application/pgp-signature\";$eol"
+ ." boundary=\"$boundary\"";
+ }
+ else if ($this->_type == self::PGP_ENCRYPTED) {
+ $headers['Content-Type'] = "multipart/encrypted;$eol"
+ ." protocol=\"application/pgp-encrypted\";$eol"
+ ." boundary=\"$boundary\"";
+ }
+
+ return $headers;
+ }
+}