#!/usr/bin/env php
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<?php
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/*
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+-----------------------------------------------------------------------+
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| bin/decrypt.sh |
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| |
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| This file is part of the Roundcube Webmail client |
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| Copyright (C) 2005-2009, The Roundcube Dev Team |
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| |
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| Licensed under the GNU General Public License version 3 or |
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| any later version with exceptions for skins & plugins. |
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| See the README file for a full license statement. |
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| PURPOSE: |
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| Decrypt the encrypted parts of the HTTP Received: headers |
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+-----------------------------------------------------------------------+
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| Author: Tomas Tevesz <ice@extreme.hu> |
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+-----------------------------------------------------------------------+
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*/
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/**
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* If http_received_header_encrypt is configured, the IP address and the
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* host name of the added Received: header is encrypted with 3DES, to
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* protect information that some could consider sensitve, yet their
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* availability is a must in some circumstances.
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*
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* Such an encrypted Received: header might look like:
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*
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* Received: from DzgkvJBO5+bw+oje5JACeNIa/uSI4mRw2cy5YoPBba73eyBmjtyHnQ==
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* [my0nUbjZXKtl7KVBZcsvWOxxtyVFxza4]
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* with HTTP/1.1 (POST); Thu, 14 May 2009 19:17:28 +0200
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*
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* In this example, the two encrypted components are the sender host name
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* (DzgkvJBO5+bw+oje5JACeNIa/uSI4mRw2cy5YoPBba73eyBmjtyHnQ==) and the IP
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* address (my0nUbjZXKtl7KVBZcsvWOxxtyVFxza4).
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*
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* Using this tool, they can be decrypted into plain text:
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*
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* $ bin/decrypt.sh 'my0nUbjZXKtl7KVBZcsvWOxxtyVFxza4' \
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* > 'DzgkvJBO5+bw+oje5JACeNIa/uSI4mRw2cy5YoPBba73eyBmjtyHnQ=='
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* 84.3.187.208
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* 5403BBD0.catv.pool.telekom.hu
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* $
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*
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* Thus it is known that this particular message was sent by 84.3.187.208,
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* having, at the time of sending, the name of 5403BBD0.catv.pool.telekom.hu.
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*
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* If (most likely binary) junk is shown, then
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* - either the encryption password has, between the time the mail was sent
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* and 'now', changed, or
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* - you are dealing with counterfeit header data.
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*/
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define('INSTALL_PATH', realpath(dirname(__FILE__).'/..') . '/');
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require INSTALL_PATH . 'program/include/clisetup.php';
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if ($argc < 2) {
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die("Usage: " . basename($argv[0]) . " encrypted-hdr-part [encrypted-hdr-part ...]\n");
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}
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$RCMAIL = rcmail::get_instance();
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for ($i = 1; $i < $argc; $i++) {
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printf("%s\n", $RCMAIL->decrypt($argv[$i]));
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};
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