f.php

   1 <?php
   2 /*
   3  *  Jirafeau, your web file repository
   4  *  Copyright (C) 2008  Julien "axolotl" BERNARD <axolotl@magieeternelle.org>
   5  *  Copyright (C) 2015  Jerome Jutteau <jerome@jutteau.fr>
   6  *
   7  *  This program is free software: you can redistribute it and/or modify
   8  *  it under the terms of the GNU Affero General Public License as
   9  *  published by the Free Software Foundation, either version 3 of the
  10  *  License, or (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU Affero General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU Affero General Public License
  18  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20 define('JIRAFEAU_ROOT', dirname(__FILE__) . '/');
  21
  22 require(JIRAFEAU_ROOT . 'lib/settings.php');
  23 require(JIRAFEAU_ROOT . 'lib/functions.php');
  24 require(JIRAFEAU_ROOT . 'lib/lang.php');
  25
  26 if (!isset($_GET['h']) || empty($_GET['h'])) {
  27     header('Location: ./');
  28     exit;
  29 }
  30
  31 /* Operations may take a long time.
  32  * Be sure PHP's safe mode is off.
  33  */
  34 @set_time_limit(0);
  35
  36 $link_name = $_GET['h'];
  37
  38 if (!preg_match('/[0-9a-zA-Z_-]+$/', $link_name)) {
  39     require(JIRAFEAU_ROOT.'lib/template/header.php');
  40     echo '<div class="error"><p>' . t('FILE_404') . '</p></div>';
  41     require(JIRAFEAU_ROOT.'lib/template/footer.php');
  42     exit;
  43 }
  44
  45 $link = jirafeau_get_link($link_name);
  46 if (count($link) == 0) {
  47     require(JIRAFEAU_ROOT.'lib/template/header.php');
  48     echo '<div class="error"><p>' . t('FILE_404') .
  49     '</p></div>';
  50     require(JIRAFEAU_ROOT.'lib/template/footer.php');
  51     exit;
  52 }
  53
  54 $delete_code = '';
  55 if (isset($_GET['d']) && !empty($_GET['d']) &&  $_GET['d'] != '1') {
  56     $delete_code = $_GET['d'];
  57 }
  58
  59 $crypt_key = '';
  60 if (isset($_GET['k']) && !empty($_GET['k'])) {
  61     $crypt_key = $_GET['k'];
  62 }
  63
  64 $do_download = false;
  65 if (isset($_GET['d']) && $_GET['d'] == '1') {
  66     $do_download = true;
  67 }
  68
  69 $do_preview = false;
  70 if (isset($_GET['p']) && !empty($_GET['p'])) {
  71     $do_preview = true;
  72 }
  73
  74 $p = s2p($link['hash']);
  75 if (!file_exists(VAR_FILES . $p . $link['hash'])) {
  76     jirafeau_delete_link($link_name);
  77     require(JIRAFEAU_ROOT.'lib/template/header.php');
  78     echo '<div class="error"><p>'.t('FILE_NOT_AVAIL').
  79     '</p></div>';
  80     require(JIRAFEAU_ROOT.'lib/template/footer.php');
  81     exit;
  82 }
  83
  84 if (!empty($delete_code) && $delete_code == $link['link_code']) {
  85     require(JIRAFEAU_ROOT.'lib/template/header.php');
  86     if (isset($_POST['do_delete'])) {
  87         jirafeau_delete_link($link_name);
  88         echo '<div class="message"><p>'.t('FILE_DELETED').
  89             '</p></div>';
  90     } else { ?>
  91         <div>
  92         <form action="f.php" method="post" id="submit_delete_post" class="form login">
  93         <input type="hidden" name="do_delete" value=1/>
  94         <fieldset>
  95              <legend> <?php echo t('CONFIRM_DEL') ?> </legend>
  96              <table>
  97              <tr><td>
  98              <?php echo t('GONNA_DEL') . ' "' . jirafeau_escape($link['file_name']) . '" (' . jirafeau_human_size($link['file_size']) . ').' ?>
  99              </td></tr>
 100              <tr><td>
 101                 <?php echo t('USING_SERVICE'). ' <a href="tos.php" target="_blank" rel="noopener noreferrer">' . t('TOS') . '</a>.' ?>
 102              </td></tr>
 103              <tr><td>
 104                 <input type="submit" id="submit_delete"  value="<?php echo t('DELETE'); ?>"
 105                 onclick="document.getElementById('submit_delete_post').action='<?php echo 'f.php?h=' . $link_name . '&amp;d=' . $delete_code . "';"; ?>
 106                 document.getElementById('submit_delete').submit ();"/>
 107              </td></tr>
 108              </table>
 109          </fieldset></form></div><?php
 110     }
 111     require(JIRAFEAU_ROOT.'lib/template/footer.php');
 112     exit;
 113 }
 114
 115 if ($link['time'] != JIRAFEAU_INFINITY && time() > $link['time']) {
 116     jirafeau_delete_link($link_name);
 117     require(JIRAFEAU_ROOT.'lib/template/header.php');
 118     echo '<div class="error"><p>'.
 119     t('FILE_EXPIRED') . ' ' .
 120     t('FILE_DELETED') .
 121     '</p></div>';
 122     require(JIRAFEAU_ROOT . 'lib/template/footer.php');
 123     exit;
 124 }
 125
 126 if (empty($crypt_key) && $link['crypted']) {
 127     require(JIRAFEAU_ROOT.'lib/template/header.php');
 128     echo '<div class="error"><p>' . t('FILE_404') .
 129     '</p></div>';
 130     require(JIRAFEAU_ROOT.'lib/template/footer.php');
 131     exit;
 132 }
 133
 134 $password_challenged = false;
 135 if (!empty($link['key'])) {
 136     if (!isset($_POST['key'])) {
 137         require(JIRAFEAU_ROOT.'lib/template/header.php');
 138         echo '<div>' .
 139              '<form action="f.php" method="post" id="submit_post" class="form login">'; ?>
 140              <input type = "hidden" name = "jirafeau" value = "<?php echo JIRAFEAU_VERSION ?>"/><?php
 141         echo '<fieldset>' .
 142              '<legend>' . t('PSW_PROTEC') .
 143              '</legend><table><tr><td>' .
 144              t('GIMME_PSW') . ' : ' .
 145              '<input type = "password" name = "key" autocomplete = "current-password"/>' .
 146              '</td></tr>' .
 147              '<tr><td>' .
 148              t('USING_SERVICE'). ' <a href="tos.php" target="_blank" rel="noopener noreferrer">' . t('TOS') . '</a>.' .
 149              '</td></tr>';
 150
 151         if ($link['onetime'] == 'O') {
 152             echo '<tr><td id="self_destruct">' .
 153                  t('AUTO_DESTRUCT') .
 154                  '</td></tr>';
 155         } ?><tr><td><input type="submit" id = "submit_download"  value="<?php echo t('DL'); ?>"
 156         onclick="document.getElementById('submit_post').action='<?php
 157         echo 'f.php?h=' . $link_name . '&amp;d=1';
 158         if (!empty($crypt_key)) {
 159             echo '&amp;k=' . urlencode($crypt_key);
 160         } ?>';
 161         document.getElementById('submit_download').submit ();"/><?php
 162         if ($cfg['preview'] && jirafeau_is_viewable($link['mime_type'])) {
 163             ?><input type="submit" id = "submit_preview"  value="<?php echo t('PREVIEW'); ?>"
 164             onclick="document.getElementById('submit_post').action='<?php
 165             echo 'f.php?h=' . $link_name . '&amp;p=1';
 166             if (!empty($crypt_key)) {
 167                 echo '&amp;k=' . urlencode($crypt_key);
 168             } ?>';
 169             document.getElementById('submit_preview').submit ();"/><?php
 170         }
 171         echo '</td></tr></table></fieldset></form></div>';
 172         require(JIRAFEAU_ROOT.'lib/template/footer.php');
 173         exit;
 174     } else {
 175         if ($link['key'] == md5($_POST['key'])) {
 176             $password_challenged = true;
 177         } else {
 178             sleep(2);
 179             require(JIRAFEAU_ROOT.'lib/template/header.php');
 180             echo '<div class="error"><p>' . t('ACCESS_KO') .
 181             '</p></div>';
 182             require(JIRAFEAU_ROOT.'lib/template/footer.php');
 183             exit;
 184         }
 185     }
 186 }
 187
 188 if (!$password_challenged && !$do_download && !$do_preview) {
 189     require(JIRAFEAU_ROOT.'lib/template/header.php');
 190     echo '<div>' .
 191              '<form action="f.php" method="post" id="submit_post" class="form download">'; ?>
 192              <input type = "hidden" name = "jirafeau" value = "<?php echo JIRAFEAU_VERSION ?>"/><?php
 193         echo '<fieldset><legend>' . jirafeau_escape($link['file_name']) . '</legend><table>' .
 194              '<tr><td>' .
 195              t('NOW_DOWNLOADING') . ' "' . jirafeau_escape($link['file_name']) . '" (' . jirafeau_human_size($link['file_size']) . ').' .
 196              '</td></tr>' .
 197              '<tr><td>' .
 198              t('USING_SERVICE'). ' <a href="tos.php" target="_blank" rel="noopener noreferrer">' . t('TOS') . '</a>.' .
 199              '</td></tr>';
 200
 201     if ($link['onetime'] == 'O') {
 202         echo '<tr><td id="self_destruct">' .
 203                  t('AUTO_DESTRUCT') .
 204                  '</td></tr>';
 205     } ?>
 206         <tr><td><input type="submit" id = "submit_download"  value="<?php echo t('DL'); ?>"
 207         onclick="document.getElementById('submit_post').action='<?php
 208         echo 'f.php?h=' . $link_name . '&amp;d=1';
 209     if (!empty($crypt_key)) {
 210         echo '&amp;k=' . urlencode($crypt_key);
 211     } ?>';
 212         document.getElementById('submit_post').submit ();"/><?php
 213
 214         if ($cfg['preview'] && jirafeau_is_viewable($link['mime_type'])) {
 215             ?><input type="submit" id = "submit_preview"  value="<?php echo t('PREVIEW'); ?>"
 216             onclick="document.getElementById('submit_post').action='<?php
 217         echo 'f.php?h=' . $link_name . '&amp;p=1';
 218             if (!empty($crypt_key)) {
 219                 echo '&amp;k=' . urlencode($crypt_key);
 220             } ?>';
 221         document.getElementById('submit_post').submit ();"/><?php
 222         }
 223     echo '</td></tr>';
 224     echo '</table></fieldset></form></div>';
 225     require(JIRAFEAU_ROOT.'lib/template/footer.php');
 226     exit;
 227 }
 228
 229 header('HTTP/1.0 200 OK');
 230 header('Content-Length: ' . $link['file_size']);
 231 if (!jirafeau_is_viewable($link['mime_type']) || !$cfg['preview'] || $do_download) {
 232     header('Content-Disposition: attachment; filename="' . $link['file_name'] . '"');
 233 } else {
 234     header('Content-Disposition: filename="' . $link['file_name'] . '"');
 235 }
 236 header('Content-Type: ' . $link['mime_type']);
 237 if ($cfg['file_hash'] == "md5") {
 238     header('Content-MD5: ' . hex_to_base64($link['hash']));
 239 }
 240 if ($cfg['litespeed_workaround']) {
 241     // Work around that LiteSpeed truncates large files.
 242     // See https://www.litespeedtech.com/support/wiki/doku.php/litespeed_wiki:config:internal-redirect
 243     if ($_GET['litespeed_workaround'] == 'phase2') {
 244         $file_web_path = preg_replace('#^' . $_SERVER['DOCUMENT_ROOT'] . '#', '', VAR_FILES);
 245         header('X-LiteSpeed-Location: ' . $file_web_path . $p . $link['hash']);
 246     } else {
 247         // Since Content-Type isn't forwarded by LiteSpeed, first
 248         // redirect to the same URL but append the file name.
 249         header('Location: ' . $_SERVER['PHP_SELF'] . '/' . $link['file_name'] . '?' .
 250                $_SERVER['QUERY_STRING'] . '&litespeed_workaround=phase2');
 251     }
 252 }
 253 /* Read encrypted file. */
 254 elseif ($link['crypted']) {
 255     /* Init module */
 256     $m = mcrypt_module_open('rijndael-256', '', 'ofb', '');
 257     /* Extract key and iv. */
 258     $hash_key = md5($crypt_key);
 259     $iv = jirafeau_crypt_create_iv($hash_key, mcrypt_enc_get_iv_size($m));
 260     /* Init module. */
 261     mcrypt_generic_init($m, $hash_key, $iv);
 262     /* Decrypt file. */
 263     $r = fopen(VAR_FILES . $p . $link['hash'], 'r');
 264     while (!feof($r)) {
 265         $dec = mdecrypt_generic($m, fread($r, 1024));
 266         print $dec;
 267     }
 268     fclose($r);
 269     /* Cleanup. */
 270     mcrypt_generic_deinit($m);
 271     mcrypt_module_close($m);
 272 }
 273 /* Read file. */
 274 else {
 275     if ($cfg['use_xsendfile']) {
 276         $file_web_path = preg_replace('#^' . $_SERVER['DOCUMENT_ROOT'] . '#', '', VAR_FILES);
 277         header('X-Sendfile: ' . $file_web_path . $p . $link['hash']);
 278     } else {
 279         $r = fopen(VAR_FILES . $p . $link['hash'], 'r');
 280         while (!feof($r)) {
 281             print fread($r, 1024);
 282         }
 283         fclose($r);
 284     }
 285 }
 286
 287 if ($link['onetime'] == 'O') {
 288     jirafeau_delete_link($link_name);
 289 }
 290 exit;
 291
 292 ?>