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Diffstat (limited to 'packages/autoconfigbackup/crypt_acb.php')
-rw-r--r-- | packages/autoconfigbackup/crypt_acb.php | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/packages/autoconfigbackup/crypt_acb.php b/packages/autoconfigbackup/crypt_acb.php new file mode 100644 index 00000000..8c56dcaf --- /dev/null +++ b/packages/autoconfigbackup/crypt_acb.php @@ -0,0 +1,104 @@ +<?php + +/* $Id$ */ +/* + Copyright (C) 2008 Shrew Soft Inc + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, + INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. + + DISABLE_PHP_LINT_CHECKING +*/ + + function crypt_data(& $data, $pass, $opt) { + + $pspec = "/usr/bin/openssl enc {$opt} -aes-256-cbc -k {$pass}"; + $dspec = array( 0 => array("pipe", "r"), + 1 => array("pipe", "w"), + 2 => array("pipe", "e")); + + $fp = proc_open($pspec, $dspec, $pipes); + if (!$fp) + return false; + + fwrite($pipes[0], $data); + fclose($pipes[0]); + + $rslt = stream_get_contents($pipes[1]); + fclose($pipes[1]); + + proc_close($fp); + + return $rslt; + } + + function encrypt_data(& $data, $pass) { + return base64_encode(crypt_data($data, $pass, "-e")); + } + + function decrypt_data(& $data, $pass) { + return crypt_data(base64_decode($data), $pass, "-d"); + } + + function tagfile_reformat($in, & $out, $tag) { + + $out = "---- BEGIN {$tag} ----\n"; + + $size = 80; + $oset = 0; + while ($size >= 64) { + $line = substr($in, $oset, 64); + $out .= $line."\n"; + $size = strlen($line); + $oset += $size; + } + + $out .= "---- END {$tag} ----\n"; + + return true; + } + + function tagfile_deformat($in, & $out, $tag) { + + $btag_val = "---- BEGIN {$tag} ----"; + $etag_val = "---- END {$tag} ----"; + + $btag_len = strlen($btag_val); + $etag_len = strlen($etag_val); + + $btag_pos = stripos($in, $btag_val); + $etag_pos = stripos($in, $etag_val); + + if (($btag_pos === false) || ($etag_pos === false)) + return false; + + $body_pos = $btag_pos + $btag_len; + $body_len = strlen($in); + $body_len -= strlen($btag_len); + $body_len -= strlen($etag_len); + + $out = substr($in, $body_pos, $body_len); + + return true; + } + +?>
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