/*
* Jirafeau, your web file repository
* Copyright (C) 2008 Julien "axolotl" BERNARD <axolotl@magieeternelle.org>
- * Copyright (C) 2012 Jerome Jutteau <j.jutteau@gmail.com>
+ * Copyright (C) 2015 Jerome Jutteau <j.jutteau@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
+/**
+ * Transform a string in a path by seperating each letters by a '/'.
+ * @return path finishing with a '/'
+ */
+function
+s2p ($s)
+{
+ $p = '';
+ for ($i = 0; $i < strlen ($s); $i++)
+ $p .= $s{$i} . '/';
+ return $p;
+}
+
+/**
+ * Convert base 16 to base 64
+ * @returns A string based on 64 characters (0-9, a-z, A-Z, "-" and "_")
+ */
+function
+base_16_to_64 ($num)
+{
+ $m = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_';
+ $hex2bin = array ('0000', # 0
+ '0001', # 1
+ '0010', # 2
+ '0011', # 3
+ '0100', # 4
+ '0101', # 5
+ '0110', # 6
+ '0111', # 7
+ '1000', # 8
+ '1001', # 9
+ '1010', # a
+ '1011', # b
+ '1100', # c
+ '1101', # d
+ '1110', # e
+ '1111'); # f
+ $o = '';
+ $b = '';
+ $i = 0;
+ # Convert long hex string to bin.
+ $size = strlen ($num);
+ for ($i = 0; $i < $size; $i++)
+ $b .= $hex2bin{hexdec ($num{$i})};
+ # Convert long bin to base 64.
+ $size *= 4;
+ for ($i = $size - 6; $i >= 0; $i -= 6)
+ $o = $m{bindec (substr ($b, $i, 6))} . $o;
+ # Some few bits remaining ?
+ if ($i < 0 && $i > -6)
+ $o = $m{bindec (substr ($b, 0, $i + 6))} . $o;
+ return $o;
+}
+
+/**
+ * Generate a random code.
+ * @param $l code length
+ * @return random code.
+ */
+function
+jirafeau_gen_random ($l)
+{
+ if ($l <= 0)
+ return 42;
+
+ $code="";
+ for ($i = 0; $i < $l; $i++)
+ $code .= dechex (rand (0, 15));
+
+ return $code;
+}
+
+function is_ssl() {
+ if ( isset($_SERVER['HTTPS']) ) {
+ if ( 'on' == strtolower($_SERVER['HTTPS']) )
+ return true;
+ if ( '1' == $_SERVER['HTTPS'] )
+ return true;
+ } elseif ( isset($_SERVER['SERVER_PORT']) && ( '443' == $_SERVER['SERVER_PORT'] ) ) {
+ return true;
+ } elseif (isset($_SERVER['HTTP_X_FORWARDED_PROTO'])) {
+ if ($_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https')
+ return true;
+ }
+ return false;
+}
+
+function
+jirafeau_human_size ($octets)
+{
+ $u = array ('B', 'KB', 'MB', 'GB', 'TB');
+ $o = max ($octets, 0);
+ $p = min (floor (($o ? log ($o) : 0) / log (1024)), count ($u) - 1);
+ $o /= pow (1024, $p);
+ return round ($o, 1) . $u[$p];
+}
+
+function
+jirafeau_clean_rm_link ($link)
+{
+ $p = s2p ("$link");
+ if (file_exists (VAR_LINKS . $p . $link))
+ unlink (VAR_LINKS . $p . $link);
+ $parse = VAR_LINKS . $p;
+ $scan = array();
+ while (file_exists ($parse)
+ && ($scan = scandir ($parse))
+ && count ($scan) == 2 // '.' and '..' folders => empty.
+ && basename ($parse) != basename (VAR_LINKS))
+ {
+ rmdir ($parse);
+ $parse = substr ($parse, 0, strlen($parse) - strlen(basename ($parse)) - 1);
+ }
+}
+
+function
+jirafeau_clean_rm_file ($md5)
+{
+ $p = s2p ("$md5");
+ $f = VAR_FILES . $p . $md5;
+ if (file_exists ($f) && is_file ($f))
+ unlink ($f);
+ if (file_exists ($f . '_count') && is_file ($f . '_count'))
+ unlink ($f . '_count');
+ $parse = VAR_FILES . $p;
+ $scan = array();
+ while (file_exists ($parse)
+ && ($scan = scandir ($parse))
+ && count ($scan) == 2 // '.' and '..' folders => empty.
+ && basename ($parse) != basename (VAR_FILES))
+ {
+ rmdir ($parse);
+ $parse = substr ($parse, 0, strlen($parse) - strlen(basename ($parse)) - 1);
+ }
+}
+
/**
* transforms a php.ini string representing a value in an integer
* @param $value the value from php.ini
* @returns an integer for this value
*/
-function jirafeau_ini_to_bytes($value) {
- $modifier = substr($value, -1);
- $bytes = substr($value, 0, -1);
- switch(strtoupper($modifier)) {
- case 'P':
- $bytes *= 1024;
- case 'T':
- $bytes *= 1024;
- case 'G':
- $bytes *= 1024;
- case 'M':
- $bytes *= 1024;
- case 'K':
- $bytes *= 1024;
- default:
- break;
- }
- return $bytes;
+function jirafeau_ini_to_bytes ($value)
+{
+ $modifier = substr ($value, -1);
+ $bytes = substr ($value, 0, -1);
+ switch (strtoupper ($modifier))
+ {
+ case 'P':
+ $bytes *= 1024;
+ case 'T':
+ $bytes *= 1024;
+ case 'G':
+ $bytes *= 1024;
+ case 'M':
+ $bytes *= 1024;
+ case 'K':
+ $bytes *= 1024;
+ default:
+ break;
+ }
+ return $bytes;
}
/**
* gets the maximum upload size according to php.ini
- * @returns the maximum upload size
+ * @returns the maximum upload size in bytes
*/
-function jirafeau_get_max_upload_size() {
- return min(jirafeau_ini_to_bytes(ini_get('post_max_size')), jirafeau_ini_to_bytes(ini_get('upload_max_filesize')));
+function
+jirafeau_get_max_upload_size_bytes ()
+{
+ return min (jirafeau_ini_to_bytes (ini_get ('post_max_size')),
+ jirafeau_ini_to_bytes (ini_get ('upload_max_filesize')));
}
/**
- * detects if a given filename is present in a directory and find an alternate filename
- * @param $name the initial filename
- * @param $dir the directory to explore (finishing with a '/')
- * @returns an alternate filename, possibly the initial filename
+ * gets the maximum upload size according to php.ini
+ * @returns the maximum upload size string
*/
-function jirafeau_detect_collision($name, $dir) {
- if(!file_exists($dir . $name)) {
- return $name;
- }
-
- $dot = strpos($name, '.');
- $dot = ($dot === false) ? strlen($name) : $dot;
- $first = substr($name, 0, $dot);
- $second = substr($name, $dot);
- $i = 1;
- do {
- $new_name = $first . '-' . $i . $second;
- $i++;
- } while(file_exists($dir . $new_name));
-
- return $new_name;
+function
+jirafeau_get_max_upload_size ()
+{
+ return jirafeau_human_size(
+ min (jirafeau_ini_to_bytes (ini_get ('post_max_size')),
+ jirafeau_ini_to_bytes (ini_get ('upload_max_filesize'))));
}
/**
* @param $code the error code
* @returns a string explaining the error
*/
-function jirafeau_upload_errstr($code) {
- switch($code) {
- case UPLOAD_ERR_INI_SIZE:
- case UPLOAD_ERR_FORM_SIZE:
- return _('Your file exceeds the maximum authorized file size.');
- break;
+function
+jirafeau_upload_errstr ($code)
+{
+ switch ($code)
+ {
+ case UPLOAD_ERR_INI_SIZE:
+ case UPLOAD_ERR_FORM_SIZE:
+ return t('Your file exceeds the maximum authorized file size. ');
+ break;
+
+ case UPLOAD_ERR_PARTIAL:
+ case UPLOAD_ERR_NO_FILE:
+ return
+ t
+ ('Your file was not uploaded correctly. You may succeed in retrying. ');
+ break;
- case UPLOAD_ERR_PARTIAL:
- case UPLOAD_ERR_NO_FILE:
- return _('Your file was not uploaded correctly. You may succeed in retrying.');
- break;
+ case UPLOAD_ERR_NO_TMP_DIR:
+ case UPLOAD_ERR_CANT_WRITE:
+ case UPLOAD_ERR_EXTENSION:
+ return t('Internal error. You may not succeed in retrying. ');
+ break;
+
+ default:
+ break;
+ }
+ return t('Unknown error. ');
+}
+
+/** Remove link and it's file
+ * @param $link the link's name (hash)
+ */
- case UPLOAD_ERR_NO_TMP_DIR:
- case UPLOAD_ERR_CANT_WRITE:
- case UPLOAD_ERR_EXTENSION:
- return _('Internal error. You may not succeed in retrying.');
- break;
+function
+jirafeau_delete_link ($link)
+{
+ $l = jirafeau_get_link ($link);
+ if (!count ($l))
+ return;
+
+ jirafeau_clean_rm_link ($link);
+
+ $md5 = $l['md5'];
+ $p = s2p ("$md5");
+
+ $counter = 1;
+ if (file_exists (VAR_FILES . $p . $md5. '_count'))
+ {
+ $content = file (VAR_FILES . $p . $md5. '_count');
+ $counter = trim ($content[0]);
+ }
+ $counter--;
+
+ if ($counter >= 1)
+ {
+ $handle = fopen (VAR_FILES . $p . $md5. '_count', 'w');
+ fwrite ($handle, $counter);
+ fclose ($handle);
+ }
+
+ if ($counter == 0)
+ jirafeau_clean_rm_file ($md5);
+}
+
+/**
+ * Delete a file and it's links.
+ */
+function
+jirafeau_delete_file ($md5)
+{
+ $count = 0;
+ /* Get all links files. */
+ $stack = array (VAR_LINKS);
+ while (($d = array_shift ($stack)) && $d != NULL)
+ {
+ $dir = scandir ($d);
- default:
- break;
- }
- return _('Unknown error.');
+ foreach ($dir as $node)
+ {
+ if (strcmp ($node, '.') == 0 || strcmp ($node, '..') == 0 ||
+ preg_match ('/\.tmp/i', "$node"))
+ continue;
+
+ if (is_dir ($d . $node))
+ {
+ /* Push new found directory. */
+ $stack[] = $d . $node . '/';
+ }
+ elseif (is_file ($d . $node))
+ {
+ /* Read link informations. */
+ $l = jirafeau_get_link (basename ($node));
+ if (!count ($l))
+ continue;
+ if ($l['md5'] == $md5)
+ {
+ $count++;
+ jirafeau_delete_link ($node);
+ }
+ }
+ }
+ }
+ jirafeau_clean_rm_file ($md5);
+ return $count;
}
/**
* @param $one_time_download is the file a one time download ?
* @param $key if not empty, protect the file with this key
* @param $time the time of validity of the file
- * @param $cfg the current configuration
* @param $ip uploader's ip
+ * @param $crypt boolean asking to crypt or not
+ * @param $link_name_length size of the link name
* @returns an array containing some information
* 'error' => information on possible errors
* 'link' => the link name of the uploaded file
+ * 'delete_link' => the link code to delete file
*/
-function jirafeau_upload($file, $one_time_download, $key, $time, $cfg, $ip) {
- if(empty($file['tmp_name']) || !is_uploaded_file($file['tmp_name'])) {
- return(array('error' => array('has_error' => true, 'why' => jirafeau_upload_errstr($file['error'])), 'link' => ''));
- }
-
- /* array representing no error */
- $noerr = array('has_error' => false, 'why' => '');
-
- /* file informations */
- $md5 = md5_file($file['tmp_name']);
- $name = trim($file['name']);
- $mime_type = $file['type'];
- $size = $file['size'];
-
- /* does file already exist ? */
- $rc = false;
- if(file_exists(VAR_FILES . $md5)) {
- $rc = unlink($file['tmp_name']);
- }
- elseif(move_uploaded_file($file['tmp_name'], VAR_FILES . $md5)) {
- $rc = true;
- }
- if(!$rc)
- {
- return(array(
- 'error' => array(
- 'has_error' => true,
- 'why' => _('Internal error during file creation.')),
- 'link' => '')
- );
- }
-
- /* increment or create count file */
- $counter=0;
- if(file_exists(VAR_FILES . $md5 . '_count')) {
- $content = file(VAR_FILES . $md5 . '_count');
- $counter = trim($content[0]);
- }
- $counter++;
- $handle = fopen(VAR_FILES . $md5 . '_count', 'w');
- fwrite($handle, $counter);
- fclose($handle);
-
- /* create link file */
- $link_tmp_name = VAR_LINKS . $md5 . rand(0, 10000) . '.tmp';
- $handle = fopen($link_tmp_name, 'w');
- fwrite($handle, $name . NL . $mime_type . NL . $size . NL . $key . NL . $time . NL . $md5 . NL . ($one_time_download ? 'O' : 'R') . NL . date('U') . NL . $ip . NL);
- fclose($handle);
- $md5_link = md5_file($link_tmp_name);
- if(!rename($link_tmp_name, VAR_LINKS . $md5_link)) {
- if ($counter > 1) {
- $counter--;
- $handle = fopen(VAR_FILES . $md5 . '_count', 'w');
- fwrite($handle, $counter);
- fclose($handle);
- }
- else {
- unlink($link_tmp_name);
- unlink(VAR_FILE . $md5 . '_count');
- unlink(VAR_FILE . $md5);
- }
- return(array(
- 'error' => array(
- 'has_error' => true,
- 'why' => _('Internal error during file creation.')),
- 'link' => '')
- );
- }
- return(array('error' => $noerr, 'link' => $md5_link));
-}
-
-/**
- * tells if a mime-type is viewable in a browser
+function
+jirafeau_upload ($file, $one_time_download, $key, $time, $ip, $crypt, $link_name_length)
+{
+ if (empty ($file['tmp_name']) || !is_uploaded_file ($file['tmp_name']))
+ {
+ return (array(
+ 'error' =>
+ array ('has_error' => true,
+ 'why' => jirafeau_upload_errstr ($file['error'])),
+ 'link' => '',
+ 'delete_link' => ''));
+ }
+
+ /* array representing no error */
+ $noerr = array ('has_error' => false, 'why' => '');
+
+ /* Crypt file if option is enabled. */
+ $crypted = false;
+ $crypt_key = '';
+ if ($crypt == true && !(extension_loaded('mcrypt') == true))
+ error_log ("PHP extension mcrypt not loaded, won't encrypt in Jirafeau");
+ if ($crypt == true && extension_loaded('mcrypt') == true)
+ {
+ $crypt_key = jirafeau_encrypt_file ($file['tmp_name'], $file['tmp_name']);
+ if (strlen($crypt_key) > 0)
+ $crypted = true;
+ }
+
+ /* file informations */
+ $md5 = md5_file ($file['tmp_name']);
+ $name = str_replace (NL, '', trim ($file['name']));
+ $mime_type = $file['type'];
+ $size = $file['size'];
+
+ /* does file already exist ? */
+ $rc = false;
+ $p = s2p ("$md5");
+ if (file_exists (VAR_FILES . $p . $md5))
+ {
+ $rc = unlink ($file['tmp_name']);
+ }
+ elseif ((file_exists (VAR_FILES . $p) || @mkdir (VAR_FILES . $p, 0755, true))
+ && move_uploaded_file ($file['tmp_name'], VAR_FILES . $p . $md5))
+ {
+ $rc = true;
+ }
+ if (!$rc)
+ {
+ return (array(
+ 'error' =>
+ array ('has_error' => true,
+ 'why' => t('Internal error during file creation.')),
+ 'link' =>'',
+ 'delete_link' => ''));
+ }
+
+ /* Increment or create count file. */
+ $counter = 0;
+ if (file_exists (VAR_FILES . $p . $md5 . '_count'))
+ {
+ $content = file (VAR_FILES . $p . $md5. '_count');
+ $counter = trim ($content[0]);
+ }
+ $counter++;
+ $handle = fopen (VAR_FILES . $p . $md5. '_count', 'w');
+ fwrite ($handle, $counter);
+ fclose ($handle);
+
+ /* Create delete code. */
+ $delete_link_code = jirafeau_gen_random (5);
+
+ /* md5 password or empty. */
+ $password = '';
+ if (!empty ($key))
+ $password = md5 ($key);
+
+ /* create link file */
+ $link_tmp_name = VAR_LINKS . $md5 . rand (0, 10000) . '.tmp';
+ $handle = fopen ($link_tmp_name, 'w');
+ fwrite ($handle,
+ $name . NL. $mime_type . NL. $size . NL. $password . NL. $time .
+ NL . $md5. NL . ($one_time_download ? 'O' : 'R') . NL . date ('U') .
+ NL . $ip . NL. $delete_link_code . NL . ($crypted ? 'C' : 'O'));
+ fclose ($handle);
+ $md5_link = substr(base_16_to_64 (md5_file ($link_tmp_name)), 0, $link_name_length);
+ $l = s2p ("$md5_link");
+ if (!@mkdir (VAR_LINKS . $l, 0755, true) ||
+ !rename ($link_tmp_name, VAR_LINKS . $l . $md5_link))
+ {
+ if (file_exists ($link_tmp_name))
+ unlink ($link_tmp_name);
+
+ $counter--;
+ if ($counter >= 1)
+ {
+ $handle = fopen (VAR_FILES . $p . $md5. '_count', 'w');
+ fwrite ($handle, $counter);
+ fclose ($handle);
+ }
+ else
+ {
+ jirafeau_clean_rm_file ($md5_link);
+ }
+ return (array(
+ 'error' =>
+ array ('has_error' => true,
+ 'why' => t('Internal error during file creation. ')),
+ 'link' =>'',
+ 'delete_link' => ''));
+ }
+ return (array ('error' => $noerr,
+ 'link' => $md5_link,
+ 'delete_link' => $delete_link_code,
+ 'crypt_key' => $crypt_key));
+}
+
+/**
+ * Tells if a mime-type is viewable in a browser
* @param $mime the mime type
* @returns a boolean telling if a mime type is viewable
*/
-function jirafeau_is_viewable($mime) {
- if(!empty($mime)) {
- // actually, verify if mime-type is an image or a text
- $viewable = array('image', 'text');
- $decomposed = explode('/', $mime);
- return in_array($decomposed[0], $viewable);
- }
- return false;
+function
+jirafeau_is_viewable ($mime)
+{
+ if (!empty ($mime))
+ {
+ /* Actually, verify if mime-type is an image or a text. */
+ $viewable = array ('image', 'text', 'video', 'audio');
+ $decomposed = explode ('/', $mime);
+ return in_array ($decomposed[0], $viewable);
+ }
+ return false;
}
-
// Error handling functions.
//! Global array that contains all registered errors.
$error_list = array ();
* @param $title the error's title
* @param $description is a human-friendly description of the problem.
*/
-function add_error ($title, $description) {
+function
+add_error ($title, $description)
+{
global $error_list;
- $error_list[] = '<p>' . $title . '<br />' . $description . '</p>';
+ $error_list[] = '<p>' . $title. '<br />' . $description. '</p>';
}
/**
* Informs whether any error has been registered yet.
* @return true if there are errors.
*/
-function has_error () {
+function
+has_error ()
+{
global $error_list;
return !empty ($error_list);
}
/**
* Displays all the errors.
*/
-function show_errors () {
- if (has_error ()) {
+function
+show_errors ()
+{
+ if (has_error ())
+ {
global $error_list;
echo '<div class="error">';
- foreach ($error_list as $error) {
+ foreach ($error_list as $error)
+ {
echo $error;
}
echo '</div>';
}
}
-?>
+function check_errors ($cfg)
+{
+ if (file_exists (JIRAFEAU_ROOT . 'install.php')
+ && !($cfg['installation_done'] === true))
+ {
+ header('Location: install.php');
+ exit;
+ }
+
+ /* check if the destination dirs are writable */
+ $writable = is_writable (VAR_FILES) && is_writable (VAR_LINKS);
+
+ /* Checking for errors. */
+ if (!is_writable (VAR_FILES))
+ add_error (t('The file directory is not writable!'), VAR_FILES);
+
+ if (!is_writable (VAR_LINKS))
+ add_error (t('The link directory is not writable!'), VAR_LINKS);
+
+ if (!is_writable (VAR_ASYNC))
+ add_error (t('The async directory is not writable!'), VAR_ASYNC);
+}
+
+/**
+ * Read link informations
+ * @return array containing informations.
+ */
+function
+jirafeau_get_link ($hash)
+{
+ $out = array ();
+ $link = VAR_LINKS . s2p ("$hash") . $hash;
+
+ if (!file_exists ($link))
+ return $out;
+
+ $c = file ($link);
+ $out['file_name'] = trim ($c[0]);
+ $out['mime_type'] = trim ($c[1]);
+ $out['file_size'] = trim ($c[2]);
+ $out['key'] = trim ($c[3], NL);
+ $out['time'] = trim ($c[4]);
+ $out['md5'] = trim ($c[5]);
+ $out['onetime'] = trim ($c[6]);
+ $out['upload_date'] = trim ($c[7]);
+ $out['ip'] = trim ($c[8]);
+ $out['link_code'] = trim ($c[9]);
+ if (trim ($c[10]) == 'C')
+ $out['crypted'] = true;
+ else
+ $out['crypted'] = false;
+
+ return $out;
+}
+
+/**
+ * List files in admin interface.
+ */
+function
+jirafeau_admin_list ($name, $file_hash, $link_hash)
+{
+ echo '<fieldset><legend>';
+ if (!empty ($name))
+ echo t('Filename') . ": $name ";
+ if (!empty ($file_hash))
+ echo t('file') . ": $file_hash ";
+ if (!empty ($link_hash))
+ echo t('link') . ": $link_hash ";
+ if (empty ($name) && empty ($file_hash) && empty ($link_hash))
+ echo t('List all files');
+ echo '</legend>';
+ echo '<table>';
+ echo '<tr>';
+ echo '<td>' . t('Filename') . '</td>';
+ echo '<td>' . t('Type') . '</td>';
+ echo '<td>' . t('Size') . '</td>';
+ echo '<td>' . t('Expire') . '</td>';
+ echo '<td>' . t('Onetime') . '</td>';
+ echo '<td>' . t('Upload date') . '</td>';
+ echo '<td>' . t('Origin') . '</td>';
+ echo '<td>' . t('Action') . '</td>';
+ echo '</tr>';
+
+ /* Get all links files. */
+ $stack = array (VAR_LINKS);
+ while (($d = array_shift ($stack)) && $d != NULL)
+ {
+ $dir = scandir ($d);
+ foreach ($dir as $node)
+ {
+ if (strcmp ($node, '.') == 0 || strcmp ($node, '..') == 0 ||
+ preg_match ('/\.tmp/i', "$node"))
+ continue;
+ if (is_dir ($d . $node))
+ {
+ /* Push new found directory. */
+ $stack[] = $d . $node . '/';
+ }
+ elseif (is_file ($d . $node))
+ {
+ /* Read link informations. */
+ $l = jirafeau_get_link ($node);
+ if (!count ($l))
+ continue;
+
+ /* Filter. */
+ if (!empty ($name) && !preg_match ("/$name/i", htmlspecialchars($l['file_name'])))
+ continue;
+ if (!empty ($file_hash) && $file_hash != $l['md5'])
+ continue;
+ if (!empty ($link_hash) && $link_hash != $node)
+ continue;
+ /* Print link informations. */
+ echo '<tr>';
+ echo '<td>' .
+ '<form action = "admin.php" method = "post">' .
+ '<input type = "hidden" name = "action" value = "download"/>' .
+ '<input type = "hidden" name = "link" value = "' . $node . '"/>' .
+ '<input type = "submit" value = "' . htmlspecialchars($l['file_name']) . '" />' .
+ '</form>';
+ echo '</td>';
+ echo '<td>' . $l['mime_type'] . '</td>';
+ echo '<td>' . jirafeau_human_size ($l['file_size']) . '</td>';
+ echo '<td>' . ($l['time'] == -1 ? '' : strftime ('%c', $l['time'])) .
+ '</td>';
+ echo '<td>' . $l['onetime'] . '</td>';
+ echo '<td>' . strftime ('%c', $l['upload_date']) . '</td>';
+ echo '<td>' . $l['ip'] . '</td>';
+ echo '<td>' .
+ '<form action = "admin.php" method = "post">' .
+ '<input type = "hidden" name = "action" value = "delete_link"/>' .
+ '<input type = "hidden" name = "link" value = "' . $node . '"/>' .
+ '<input type = "submit" value = "' . t('Del link') . '" />' .
+ '</form>' .
+ '<form action = "admin.php" method = "post">' .
+ '<input type = "hidden" name = "action" value = "delete_file"/>' .
+ '<input type = "hidden" name = "md5" value = "' . $l['md5'] . '"/>' .
+ '<input type = "submit" value = "' . t('Del file and links') . '" />' .
+ '</form>' .
+ '</td>';
+ echo '</tr>';
+ }
+ }
+ }
+ echo '</table></fieldset>';
+}
+
+/**
+ * Clean expired files.
+ * @return number of cleaned files.
+ */
+function
+jirafeau_admin_clean ()
+{
+ $count = 0;
+ /* Get all links files. */
+ $stack = array (VAR_LINKS);
+ while (($d = array_shift ($stack)) && $d != NULL)
+ {
+ $dir = scandir ($d);
+
+ foreach ($dir as $node)
+ {
+ if (strcmp ($node, '.') == 0 || strcmp ($node, '..') == 0 ||
+ preg_match ('/\.tmp/i', "$node"))
+ continue;
+
+ if (is_dir ($d . $node))
+ {
+ /* Push new found directory. */
+ $stack[] = $d . $node . '/';
+ }
+ elseif (is_file ($d . $node))
+ {
+ /* Read link informations. */
+ $l = jirafeau_get_link (basename ($node));
+ if (!count ($l))
+ continue;
+ $p = s2p ($l['md5']);
+ if ($l['time'] > 0 && $l['time'] < time () || // expired
+ !file_exists (VAR_FILES . $p . $l['md5']) || // invalid
+ !file_exists (VAR_FILES . $p . $l['md5'] . '_count')) // invalid
+ {
+ jirafeau_delete_link ($node);
+ $count++;
+ }
+ }
+ }
+ }
+ return $count;
+}
+
+
+/**
+ * Clean old async transferts.
+ * @return number of cleaned files.
+ */
+function
+jirafeau_admin_clean_async ()
+{
+ $count = 0;
+ /* Get all links files. */
+ $stack = array (VAR_ASYNC);
+ while (($d = array_shift ($stack)) && $d != NULL)
+ {
+ $dir = scandir ($d);
+
+ foreach ($dir as $node)
+ {
+ if (strcmp ($node, '.') == 0 || strcmp ($node, '..') == 0 ||
+ preg_match ('/\.tmp/i', "$node"))
+ continue;
+
+ if (is_dir ($d . $node))
+ {
+ /* Push new found directory. */
+ $stack[] = $d . $node . '/';
+ }
+ elseif (is_file ($d . $node))
+ {
+ /* Read async informations. */
+ $a = jirafeau_get_async_ref (basename ($node));
+ if (!count ($a))
+ continue;
+ /* Delete transferts older than 1 hour. */
+ if (date ('U') - $a['last_edited'] > 3600)
+ {
+ jirafeau_async_delete (basename ($node));
+ $count++;
+ }
+ }
+ }
+ }
+ return $count;
+}
+/**
+ * Read async transfert informations
+ * @return array containing informations.
+ */
+function
+jirafeau_get_async_ref ($ref)
+{
+ $out = array ();
+ $refinfos = VAR_ASYNC . s2p ("$ref") . "$ref";
+
+ if (!file_exists ($refinfos))
+ return $out;
+
+ $c = file ($refinfos);
+ $out['file_name'] = trim ($c[0]);
+ $out['mime_type'] = trim ($c[1]);
+ $out['key'] = trim ($c[2], NL);
+ $out['time'] = trim ($c[3]);
+ $out['onetime'] = trim ($c[4]);
+ $out['ip'] = trim ($c[5]);
+ $out['last_edited'] = trim ($c[6]);
+ $out['next_code'] = trim ($c[7]);
+ return $out;
+}
+
+/**
+ * Delete async transfert informations
+ */
+function
+jirafeau_async_delete ($ref)
+{
+ $p = s2p ("$ref");
+ if (file_exists (VAR_ASYNC . $p . $ref))
+ unlink (VAR_ASYNC . $p . $ref);
+ if (file_exists (VAR_ASYNC . $p . $ref . '_data'))
+ unlink (VAR_ASYNC . $p . $ref . '_data');
+ $parse = VAR_ASYNC . $p;
+ $scan = array();
+ while (file_exists ($parse)
+ && ($scan = scandir ($parse))
+ && count ($scan) == 2 // '.' and '..' folders => empty.
+ && basename ($parse) != basename (VAR_ASYNC))
+ {
+ rmdir ($parse);
+ $parse = substr ($parse, 0, strlen($parse) - strlen(basename ($parse)) - 1);
+ }
+}
+
+/**
+ * Init a new asynchronous upload.
+ * @param $finename Name of the file to send
+ * @param $one_time One time upload parameter
+ * @param $key eventual password (or blank)
+ * @param $time time limit
+ * @param $ip ip address of the client
+ * @return a string containing a temporary reference followed by a code or the string "Error"
+ */
+function
+jirafeau_async_init ($filename, $type, $one_time, $key, $time, $ip)
+{
+ $res = 'Error';
+
+ /* Create temporary folder. */
+ $ref;
+ $p;
+ $code = jirafeau_gen_random (4);
+ do
+ {
+ $ref = jirafeau_gen_random (32);
+ $p = VAR_ASYNC . s2p ($ref);
+ } while (file_exists ($p));
+ @mkdir ($p, 0755, true);
+ if (!file_exists ($p))
+ {
+ echo "Error";
+ return;
+ }
+
+ /* md5 password or empty */
+ $password = '';
+ if (!empty ($key))
+ $password = md5 ($key);
+
+ /* Store informations. */
+ $p .= $ref;
+ $handle = fopen ($p, 'w');
+ fwrite ($handle,
+ str_replace (NL, '', trim ($filename)) . NL .
+ str_replace (NL, '', trim ($type)) . NL . $password . NL .
+ $time . NL . ($one_time ? 'O' : 'R') . NL . $ip . NL .
+ date ('U') . NL . $code . NL);
+ fclose ($handle);
+
+ return $ref . NL . $code ;
+}
+
+/**
+ * Append a piece of file on the asynchronous upload.
+ * @param $ref asynchronous upload reference
+ * @param $file piece of data
+ * @param $code client code for this operation
+ * @param $max_file_size maximum allowed file size
+ * @return a string containing a next code to use or the string "Error"
+ */
+function
+jirafeau_async_push ($ref, $data, $code, $max_file_size)
+{
+ /* Get async infos. */
+ $a = jirafeau_get_async_ref ($ref);
+
+ /* Check some errors. */
+ if (count ($a) == 0
+ || $a['next_code'] != "$code"
+ || empty ($data['tmp_name'])
+ || !is_uploaded_file ($data['tmp_name']))
+ return "Error";
+
+ $p = s2p ($ref);
+
+ /* File path. */
+ $r_path = $data['tmp_name'];
+ $w_path = VAR_ASYNC . $p . $ref . '_data';
+
+ /* Check that file size is not above upload limit. */
+ if ($max_file_size > 0 &&
+ filesize ($r_path) + filesize ($w_path) > $max_file_size * 1024 * 1024)
+ {
+ jirafeau_async_delete ($ref);
+ return "Error";
+ }
+
+ /* Concatenate data. */
+ $r = fopen ($r_path, 'r');
+ $w = fopen ($w_path, 'a');
+ while (!feof ($r))
+ {
+ if (fwrite ($w, fread ($r, 1024)) === false)
+ {
+ fclose ($r);
+ fclose ($w);
+ jirafeau_async_delete ($ref);
+ return "Error";
+ }
+ }
+ fclose ($r);
+ fclose ($w);
+ unlink ($r_path);
+
+ /* Update async file. */
+ $code = jirafeau_gen_random (4);
+ $handle = fopen (VAR_ASYNC . $p . $ref, 'w');
+ fwrite ($handle,
+ $a['file_name'] . NL. $a['mime_type'] . NL. $a['key'] . NL .
+ $a['time'] . NL . $a['onetime'] . NL . $a['ip'] . NL .
+ date ('U') . NL . $code . NL);
+ fclose ($handle);
+ return $code;
+}
+
+/**
+ * Finalyze an asynchronous upload.
+ * @param $ref asynchronous upload reference
+ * @param $code client code for this operation
+ * @param $crypt boolean asking to crypt or not
+ * @param $link_name_length link name length
+ * @return a string containing the download reference followed by a delete code or the string "Error"
+ */
+function
+jirafeau_async_end ($ref, $code, $crypt, $link_name_length)
+{
+ /* Get async infos. */
+ $a = jirafeau_get_async_ref ($ref);
+ if (count ($a) == 0
+ || $a['next_code'] != "$code")
+ return "Error";
+
+ /* Generate link infos. */
+ $p = VAR_ASYNC . s2p ($ref) . $ref . "_data";
+ if (!file_exists($p))
+ return "Error";
+
+ $crypted = false;
+ $crypt_key = '';
+ if ($crypt == true && extension_loaded('mcrypt') == true)
+ {
+ $crypt_key = jirafeau_encrypt_file ($p, $p);
+ if (strlen($crypt_key) > 0)
+ $crypted = true;
+ }
+
+ $md5 = md5_file ($p);
+ $size = filesize($p);
+ $np = s2p ($md5);
+ $delete_link_code = jirafeau_gen_random (5);
+
+ /* File already exist ? */
+ if (!file_exists (VAR_FILES . $np))
+ @mkdir (VAR_FILES . $np, 0755, true);
+ if (!file_exists (VAR_FILES . $np . $md5))
+ rename ($p, VAR_FILES . $np . $md5);
+
+ /* Increment or create count file. */
+ $counter = 0;
+ if (file_exists (VAR_FILES . $np . $md5 . '_count'))
+ {
+ $content = file (VAR_FILES . $np . $md5. '_count');
+ $counter = trim ($content[0]);
+ }
+ $counter++;
+ $handle = fopen (VAR_FILES . $np . $md5. '_count', 'w');
+ fwrite ($handle, $counter);
+ fclose ($handle);
+
+ /* Create link. */
+ $link_tmp_name = VAR_LINKS . $md5 . rand (0, 10000) . '.tmp';
+ $handle = fopen ($link_tmp_name, 'w');
+ fwrite ($handle,
+ $a['file_name'] . NL . $a['mime_type'] . NL . $size . NL .
+ $a['key'] . NL . $a['time'] . NL . $md5 . NL . $a['onetime'] . NL .
+ date ('U') . NL . $a['ip'] . NL . $delete_link_code . NL . ($crypted ? 'C' : 'O'));
+ fclose ($handle);
+ $md5_link = substr(base_16_to_64 (md5_file ($link_tmp_name)), 0, $link_name_length);
+ $l = s2p ("$md5_link");
+ if (!@mkdir (VAR_LINKS . $l, 0755, true) ||
+ !rename ($link_tmp_name, VAR_LINKS . $l . $md5_link))
+ echo "Error";
+
+ /* Clean async upload. */
+ jirafeau_async_delete ($ref);
+ return $md5_link . NL . $delete_link_code . NL . urlencode($crypt_key);
+}
+
+function
+jirafeau_crypt_create_iv($base, $size)
+{
+ $iv = '';
+ while (strlen ($iv) < $size)
+ $iv = $iv . $base;
+ $iv = substr($iv, 0, $size);
+ return $iv;
+}
+
+/**
+ * Crypt file and returns decrypt key.
+ * @param $fp_src file path to the file to crypt.
+ * @param $fp_dst file path to the file to write crypted file (could be the same).
+ * @return decrypt key composed of the key and the iv separated by a point ('.')
+ */
+function
+jirafeau_encrypt_file ($fp_src, $fp_dst)
+{
+ $fs = filesize ($fp_src);
+ if ($fs === false || $fs == 0 || !(extension_loaded('mcrypt') == true))
+ return '';
+
+ /* Prepare module. */
+ $m = mcrypt_module_open('rijndael-256', '', 'ofb', '');
+ /* Generate key. */
+ $crypt_key = jirafeau_gen_random (10);
+ $md5_key = md5($crypt_key);
+ $iv = jirafeau_crypt_create_iv ($md5_key, mcrypt_enc_get_iv_size($m));
+ /* Init module. */
+ mcrypt_generic_init($m, $md5_key, $iv);
+ /* Crypt file. */
+ $r = fopen ($fp_src, 'r');
+ $w = fopen ($fp_dst, 'c');
+ while (!feof ($r))
+ {
+ $enc = mcrypt_generic($m, fread ($r, 1024));
+ if (fwrite ($w, $enc) === false)
+ return '';
+ }
+ fclose ($r);
+ fclose ($w);
+ /* Cleanup. */
+ mcrypt_generic_deinit($m);
+ mcrypt_module_close($m);
+ return $crypt_key;
+}
+
+/**
+ * Decrypt file.
+ * @param $fp_src file path to the file to decrypt.
+ * @param $fp_dst file path to the file to write decrypted file (could be the same).
+ * @param $k string composed of the key and the iv separated by a point ('.')
+ * @return key used to decrypt. a string of length 0 is returned if failed.
+ */
+function
+jirafeau_decrypt_file ($fp_src, $fp_dst, $k)
+{
+ $fs = filesize ($fp_src);
+ if ($fs === false || $fs == 0 || !(extension_loaded('mcrypt') == true))
+ return false;
+
+ /* Init module */
+ $m = mcrypt_module_open('rijndael-256', '', 'ofb', '');
+ /* Extract key and iv. */
+ $crypt_key = $k;
+ $md5_key = md5($crypt_key);
+ $iv = jirafeau_crypt_create_iv ($md5_key, mcrypt_enc_get_iv_size($m));
+ /* Decrypt file. */
+ $r = fopen ($fp_src, 'r');
+ $w = fopen ($fp_dst, 'c');
+ while (!feof ($r))
+ {
+ $dec = mdecrypt_generic($m, fread ($r, 1024));
+ if (fwrite ($w, $dec) === false)
+ return false;
+ }
+ fclose ($r);
+ fclose ($w);
+ /* Cleanup. */
+ mcrypt_generic_deinit($m);
+ mcrypt_module_close($m);
+ return true;
+}
+
+/**
+ * Check if Jirafeau is password protected for visitors.
+ * @return true if Jirafeau is password protected, false otherwise.
+ */
+function jirafeau_has_upload_password ($cfg)
+{
+ return count ($cfg['upload_password']) > 0;
+}
+
+/**
+ * Challenge password for a visitor.
+ * @param $password password to be challenged
+ * @return true if password is valid, false otherwise.
+ */
+function jirafeau_challenge_upload_password ($cfg, $password)
+{
+ if (!jirafeau_has_upload_password($cfg))
+ return false;
+ forEach ($cfg['upload_password'] as $p)
+ if ($password == $p)
+ return true;
+ return false;
+}
+
+/**
+ * Test if visitor's IP is authorized to upload.
+ * @param $ip IP to be challenged
+ * @return true if IP is authorized, false otherwise.
+ */
+function jirafeau_challenge_upload_ip ($cfg, $ip)
+{
+ if (count ($cfg['upload_ip']) == 0)
+ return true;
+ forEach ($cfg['upload_ip'] as $i)
+ {
+ if ($i == $ip)
+ return true;
+ // CIDR test for IPv4 only.
+ if (strpos ($i, '/') !== false)
+ {
+ list ($subnet, $mask) = explode('/', $i);
+ if ((ip2long ($ip) & ~((1 << (32 - $mask)) - 1) ) == ip2long ($subnet))
+ return true;
+ }
+ }
+ return false;
+}
+
+/**
+ * Get the ip address of the client from REMOTE_ADDR
+ * or from HTTP_X_FORWARDED_FOR if behind a proxy
+ * @returns an the client ip address
+ */
+function get_ip_address($cfg) {
+ if (count ($cfg['proxy_ip']) == 0 ||
+ empty ($_SERVER['HTTP_X_FORWARDED_FOR']))
+ return $_SERVER['REMOTE_ADDR'];
+
+ $iplist = explode (',', $_SERVER['HTTP_X_FORWARDED_FOR']);
+ if (count ($iplist) == 0)
+ return $_SERVER['REMOTE_ADDR'];
+
+ foreach ($cfg['proxy_ip'] as $proxy_ip)
+ {
+ if ($_SERVER['REMOTE_ADDR'] != $proxy_ip)
+ continue;
+
+ // Take the last IP (the one which has been set by our proxy).
+ $ip = end($iplist);
+ $ip = preg_replace ('/\s+/', '', $ip);
+ return $ip;
+ }
+ return $_SERVER['REMOTE_ADDR'];
+}
+
+/**
+ * Convert hexadecimal string to base64
+ */
+function hex_to_base64($hex)
+{
+ $b = '';
+ foreach (str_split ($hex, 2) as $pair)
+ $b .= chr (hexdec ($pair));
+ return base64_encode ($b);
+}
git.p6c8.net / jirafeau.git / blobdiff