#!/usr/bin/env php <?php /* +-----------------------------------------------------------------------+ | bin/decrypt.php | | | | This file is part of the RoundCube Webmail client | | Copyright (C) 2005-2009, RoundCube Dev. - Switzerland | | Licensed under the GNU GPL | | | | PURPOSE: | | Decrypt the encrypted parts of the HTTP Received: headers | | | +-----------------------------------------------------------------------+ | Author: Tomas Tevesz <ice@extreme.hu> | +-----------------------------------------------------------------------+ $Id$ */ /*- * If http_received_header_encrypt is configured, the IP address and the * host name of the added Received: header is encrypted with 3DES, to * protect information that some could consider sensitve, yet their * availability is a must in some circumstances. * * Such an encrypted Received: header might look like: * * Received: from DzgkvJBO5+bw+oje5JACeNIa/uSI4mRw2cy5YoPBba73eyBmjtyHnQ== * [my0nUbjZXKtl7KVBZcsvWOxxtyVFxza4] * with HTTP/1.1 (POST); Thu, 14 May 2009 19:17:28 +0200 * * In this example, the two encrypted components are the sender host name * (DzgkvJBO5+bw+oje5JACeNIa/uSI4mRw2cy5YoPBba73eyBmjtyHnQ==) and the IP * address (my0nUbjZXKtl7KVBZcsvWOxxtyVFxza4). * * Using this tool, they can be decrypted into plain text: * * $ bin/decrypt_received.php 'my0nUbjZXKtl7KVBZcsvWOxxtyVFxza4' \ * > 'DzgkvJBO5+bw+oje5JACeNIa/uSI4mRw2cy5YoPBba73eyBmjtyHnQ==' * 84.3.187.208 * 5403BBD0.catv.pool.telekom.hu * $ * * Thus it is known that this particular message was sent by 84.3.187.208, * having, at the time of sending, the name of 5403BBD0.catv.pool.telekom.hu. * * If (most likely binary) junk is shown, then * - either the encryption password has, between the time the mail was sent * and `now', changed, or * - you are dealing with counterfeit header data. */ if (php_sapi_name() != 'cli') { die("Not on the 'shell' (php-cli).\n"); } define('INSTALL_PATH', realpath(dirname(__FILE__).'/..') . '/'); require INSTALL_PATH . 'program/include/iniset.php'; if ($argc < 2) { die("Usage: " . basename($argv[0]) . " encrypted-hdr-part [encrypted-hdr-part ...]\n"); } $RCMAIL = rcmail::get_instance(); for ($i = 1; $i < $argc; $i++) { printf("%s\n", $RCMAIL->decrypt($argv[$i])); };