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f.php
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f.php
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<?php
/*
* Jirafeau, your web file repository
* Copyright (C) 2008 Julien "axolotl" BERNARD <[email protected]>
* Copyright (C) 2015 Jerome Jutteau <[email protected]>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
define ('JIRAFEAU_ROOT', dirname (__FILE__) . '/');
require (JIRAFEAU_ROOT . 'lib/settings.php');
require (JIRAFEAU_ROOT . 'lib/functions.php');
require (JIRAFEAU_ROOT . 'lib/lang.php');
if (!isset ($_GET['h']) || empty ($_GET['h']))
{
header ('Location: ' . $cfg['web_root']);
exit;
}
/* Operations may take a long time.
* Be sure PHP's safe mode is off.
*/
@set_time_limit(0);
/* Remove errors. */
@error_reporting(0);
$link_name = $_GET['h'];
if (!preg_match ('/[0-9a-zA-Z_-]+$/', $link_name))
{
require (JIRAFEAU_ROOT.'lib/template/header.php');
echo '<div class="error"><p>' . t('Sorry, the requested file is not found') . '</p></div>';
require (JIRAFEAU_ROOT.'lib/template/footer.php');
exit;
}
$link = jirafeau_get_link ($link_name);
if (count ($link) == 0)
{
/* Try alias. */
$alias = jirafeau_get_alias (md5 ($link_name));
if (count ($alias) > 0)
$link = jirafeau_get_link ($alias["destination"]);
}
if (count ($link) == 0)
{
require (JIRAFEAU_ROOT.'lib/template/header.php');
echo '<div class="error"><p>' . t('Sorry, the requested file is not found') .
'</p></div>';
require (JIRAFEAU_ROOT.'lib/template/footer.php');
exit;
}
$delete_code = '';
if (isset ($_GET['d']) && !empty ($_GET['d']) && $_GET['d'] != '1')
$delete_code = $_GET['d'];
$crypt_key = '';
if (isset ($_GET['k']) && !empty ($_GET['k']))
$crypt_key = $_GET['k'];
$do_download = false;
if (isset ($_GET['d']) && $_GET['d'] == '1')
$do_download = true;
$do_preview = false;
if (isset ($_GET['p']) && !empty ($_GET['p']))
$do_preview = true;
$p = s2p ($link['md5']);
if (!file_exists (VAR_FILES . $p . $link['md5']))
{
jirafeau_delete_link ($link_name);
require (JIRAFEAU_ROOT.'lib/template/header.php');
echo '<div class="error"><p>'.t('File not available.').
'</p></div>';
require (JIRAFEAU_ROOT.'lib/template/footer.php');
exit;
}
if (!empty ($delete_code) && $delete_code == $link['link_code'])
{
jirafeau_delete_link ($link_name);
require (JIRAFEAU_ROOT.'lib/template/header.php');
echo '<div class="message"><p>'.t('File has been deleted.').
'</p></div>';
require (JIRAFEAU_ROOT.'lib/template/footer.php');
exit;
}
if ($link['time'] != JIRAFEAU_INFINITY && time () > $link['time'])
{
jirafeau_delete_link ($link_name);
require (JIRAFEAU_ROOT.'lib/template/header.php');
echo '<div class="error"><p>'.
t('The time limit of this file has expired.') . ' ' .
t('File has been deleted.') .
'</p></div>';
require (JIRAFEAU_ROOT . 'lib/template/footer.php');
exit;
}
if (empty ($crypt_key) && $link['crypted'])
{
require (JIRAFEAU_ROOT.'lib/template/header.php');
echo '<div class="error"><p>' . t('Sorry, the requested file is not found') .
'</p></div>';
require (JIRAFEAU_ROOT.'lib/template/footer.php');
exit;
}
$password_challenged = false;
if (!empty ($link['key']))
{
if (!isset ($_POST['key']))
{
require (JIRAFEAU_ROOT.'lib/template/header.php');
echo '<div>' .
'<form action = "';
echo $cfg['web_root'] . '/f.php';
echo '" ' .
'method = "post" id = "submit_post">'; ?>
<input type = "hidden" name = "jirafeau" value = "<?php echo JIRAFEAU_VERSION ?>"/><?php
echo '<fieldset>' .
'<legend>' . t('Password protection') .
'</legend><table><tr><td>' .
t('Give the password of this file') . ' : ' .
'<input type = "password" name = "key" />' .
'</td></tr>' .
'<tr><td>' .
t('By using our services, you accept our'). ' <a href="' . $cfg['web_root'] . 'tos.php' . '">' . t('Terms of Service') . '</a>.' .
'</td></tr>';
if ($link['onetime'] == 'O')
{
echo '<tr><td id="self_destruct">' .
t('Warning, this file will self-destruct after being read') .
'</td></tr>';
}
?><tr><td><input type="submit" id = "submit_download" value="<?php echo t('Download'); ?>"
onclick="document.getElementById('submit_post').action='
<?php
echo $cfg['web_root'] . '/f.php?h=' . $link_name . '&d=1';
if (!empty($crypt_key))
echo '&k=' . urlencode($crypt_key);
?>';
document.getElementById('submit_download').submit ();"/><?php
if ($cfg['preview'] && jirafeau_is_viewable($link['mime_type']))
{
?><input type="submit" id = "submit_preview" value="<?php echo t('Preview'); ?>"
onclick="document.getElementById('submit_post').action='
<?php
echo $cfg['web_root'] . '/f.php?h=' . $link_name . '&p=1';
if (!empty($crypt_key))
echo '&k=' . urlencode($crypt_key);
?>';
document.getElementById('submit_preview').submit ();"/><?php
}
echo '</td></tr></table></fieldset></form></div>';
require (JIRAFEAU_ROOT.'lib/template/footer.php');
exit;
}
else
{
if ($link['key'] == md5 ($_POST['key']))
$password_challenged = true;
else
{
sleep (2);
require (JIRAFEAU_ROOT.'lib/template/header.php');
echo '<div class="error"><p>' . t('Access denied') .
'</p></div>';
require (JIRAFEAU_ROOT.'lib/template/footer.php');
exit;
}
}
}
if (!$password_challenged && !$do_download && !$do_preview)
{
require (JIRAFEAU_ROOT.'lib/template/header.php');
echo '<div>' .
'<form action = "';
echo $cfg['web_root'] . '/f.php';
echo '" ' .
'method = "post" id = "submit_post">'; ?>
<input type = "hidden" name = "jirafeau" value = "<?php echo JIRAFEAU_VERSION ?>"/><?php
echo '<fieldset><legend>' . htmlspecialchars($link['file_name']) . '</legend><table>' .
'<tr><td>' .
t('You are about to download') . ' "' . htmlspecialchars($link['file_name']) . '" (' . jirafeau_human_size($link['file_size']) . ').' .
'</td></tr>' .
'<tr><td>' .
t('By using our services, you accept our'). ' <a href="' . $cfg['web_root'] . 'tos.php' . '">' . t('Terms of Service') . '</a>.' .
'</td></tr>';
if ($link['onetime'] == 'O')
{
echo '<tr><td id="self_destruct">' .
t('Warning, this file will self-destruct after being read') .
'</td></tr>';
}
?>
<tr><td><input type="submit" id = "submit_download" value="<?php echo t('Download'); ?>"
onclick="document.getElementById('submit_post').action='
<?php
echo $cfg['web_root'] . '/f.php?h=' . $link_name . '&d=1';
if (!empty($crypt_key))
echo '&k=' . urlencode($crypt_key);
?>';
document.getElementById('submit_post').submit ();"/><?php
if ($cfg['preview'] && jirafeau_is_viewable($link['mime_type']))
{
?><input type="submit" id = "submit_preview" value="<?php echo t('Preview'); ?>"
onclick="document.getElementById('submit_post').action='
<?php
echo $cfg['web_root'] . '/f.php?h=' . $link_name . '&p=1';
if (!empty($crypt_key))
echo '&k=' . urlencode($crypt_key);
?>';
document.getElementById('submit_post').submit ();"/><?php
}
echo '</td></tr>';
echo '</table></fieldset></form></div>';
require (JIRAFEAU_ROOT.'lib/template/footer.php');
exit;
}
header ('HTTP/1.0 200 OK');
header ('Content-Length: ' . $link['file_size']);
if (!jirafeau_is_viewable ($link['mime_type']) || !$cfg['preview'] || $do_download)
header ('Content-Disposition: attachment; filename="' . $link['file_name'] . '"');
else
header ('Content-Disposition: filename="' . $link['file_name'] . '"');
header ('Content-Type: ' . $link['mime_type']);
header ('Content-MD5: ' . hex_to_base64($link['md5']));
/* Read encrypted file. */
if ($link['crypted'])
{
/* Init module */
$m = mcrypt_module_open('rijndael-256', '', 'ofb', '');
/* Extract key and iv. */
$md5_key = md5 ($crypt_key);
$iv = jirafeau_crypt_create_iv ($md5_key, mcrypt_enc_get_iv_size($m));
/* Init module. */
mcrypt_generic_init ($m, $md5_key, $iv);
/* Decrypt file. */
$r = fopen (VAR_FILES . $p . $link['md5'], 'r');
while (!feof ($r))
{
$dec = mdecrypt_generic($m, fread ($r, 1024));
print $dec;
ob_flush();
}
fclose ($r);
/* Cleanup. */
mcrypt_generic_deinit($m);
mcrypt_module_close($m);
}
/* Read file. */
else
{
$r = fopen (VAR_FILES . $p . $link['md5'], 'r');
while (!feof ($r))
{
print fread ($r, 1024);
ob_flush();
}
fclose ($r);
}
if ($link['onetime'] == 'O')
jirafeau_delete_link ($link_name);
exit;
?>