| 1 | <?php |
| 2 | /* |
| 3 | * Copyright (C) 2003-2004 Polytechnique.org |
| 4 | * http://opensource.polytechnique.org/ |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | |
| 21 | |
| 22 | require_once 'diogenes/diogenes.misc.inc.php'; |
| 23 | |
| 24 | /** Protect PHP code. |
| 25 | */ |
| 26 | function phpProtect($input) |
| 27 | { |
| 28 | $splits = preg_split("/(<\?php|\?>)/",$input,-1,PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY); |
| 29 | $output = ""; |
| 30 | |
| 31 | while ($block = array_shift($splits)) { |
| 32 | if ($block == "<?php") { |
| 33 | $code = array_shift($splits); |
| 34 | $end = array_shift($splits); |
| 35 | if ($end != "?>") |
| 36 | die("phpProtect : parse error"); |
| 37 | $output .= "{PHP:".base64_encode($code).":PHP}"; |
| 38 | } else { |
| 39 | $output .= $block; |
| 40 | } |
| 41 | } |
| 42 | |
| 43 | return $output; |
| 44 | } |
| 45 | |
| 46 | |
| 47 | /** Unprotect PHP code. |
| 48 | */ |
| 49 | function phpUnprotect($input) |
| 50 | { |
| 51 | $splits = preg_split("/({PHP:.+:PHP})/",$input,-1,PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY); |
| 52 | $output = ""; |
| 53 | |
| 54 | foreach ($splits as $block) { |
| 55 | if (preg_match("/{PHP:(.+):PHP}/",$block,$match)) { |
| 56 | $output .= "<?php".base64_decode($match[1])."?>"; |
| 57 | } else { |
| 58 | $output .= $block; |
| 59 | } |
| 60 | } |
| 61 | |
| 62 | return $output; |
| 63 | } |
| 64 | |
| 65 | |
| 66 | /** Convert XHTML-compliant tags to plain HTML. |
| 67 | */ |
| 68 | function xhtmlToHtml($input) |
| 69 | { |
| 70 | return html_accent(preg_replace("/<(br|img|input|p)( [^\/]*)?\/>/","<\$1\$2>",$input)); |
| 71 | } |
| 72 | |
| 73 | |
| 74 | /** Restore XHTML-compliant tags. |
| 75 | */ |
| 76 | function htmlToXhtml($input) |
| 77 | { |
| 78 | return preg_replace("/<(br|img|input)( [^>]+)?>/","<\$1\$2/>",$input); |
| 79 | } |
| 80 | |
| 81 | ?> |