/*
* 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 <jerome@jutteau.fr>
+ * Copyright (C) 2015 Nicola Spanti (RyDroid) <dev@nicola-spanti.info>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* 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/>.
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
+/**
+ * Transform a string in a path by separating each letters by a '/'.
+ * @return path finishing with a '/'
+ */
+function s2p($s)
+{
+ $block_size = 8;
+ $p = '';
+ for ($i = 0; $i < strlen($s); $i++) {
+ $p .= $s[$i];
+ if (($i + 1) % $block_size == 0) {
+ $p .= '/';
+ }
+ }
+ if (strlen($s) % $block_size != 0) {
+ $p .= '/';
+ }
+ 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 $code;
+}
+
+function jirafeau_gen_download_pass($length, $allowed_chars)
+{
+ if ($length <= 0) {
+ return false;
+ }
+ $pass="";
+ for ($i = 0; $i < $length; $i++) {
+ $pass .= $allowed_chars[rand(0, strlen($allowed_chars) - 1)];
+ }
+
+ return $pass;
+}
+
+function is_ssl()
+{
+ if (isset($_SERVER['HTTPS'])) {
+ if ('on' == strtolower($_SERVER['HTTPS']) ||
+ '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];
+}
+
+// Convert UTC timestamp to a datetime field
+function jirafeau_get_datetimefield($timestamp)
+{
+ $content = '<span class="datetime" data-datetime="' . strftime('%Y-%m-%d %H:%M', $timestamp) . '">'
+ . strftime('%Y-%m-%d %H:%M', $timestamp) . ' (GMT)</span>';
+ return $content;
+}
+
+function jirafeau_fatal_error($errorText, $cfg = array())
+{
+ echo '<div class="error"><h2>Error</h2><p>' . $errorText . '</p></div>';
+ require(JIRAFEAU_ROOT . 'lib/template/footer.php');
+ exit;
+}
+
+function jirafeau_clean_rm_link($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($hash)
+{
+ $p = s2p("$hash");
+ $f = VAR_FILES . $p . $hash;
+ if (file_exists($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($modifier)) {
+ default:
+ return intval($value);
+ break;
+ case 'P':
+ $bytes *= 1024;
+ // no break
+ case 'T':
+ $bytes *= 1024;
+ // no break
+ case 'G':
+ $bytes *= 1024;
+ // no break
+ case 'M':
+ $bytes *= 1024;
+ // no break
+ case 'K':
+ $bytes *= 1024;
+ }
+ 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));
+function jirafeau_get_max_upload_size()
+{
+ return jirafeau_human_size(jirafeau_get_max_upload_size_bytes());
+}
- return $new_name;
+/**
+ * get the maximal upload size for a data chunk in async uploads
+ * @param max_upload_chunk_size_bytes
+ */
+function jirafeau_get_max_upload_chunk_size_bytes($max_upload_chunk_size_bytes = 0)
+{
+ if ($max_upload_chunk_size_bytes == 0) {
+ $size = jirafeau_get_max_upload_size_bytes();
+ // Jirafeau must choose an arbitrary number as PHP config does not give any limit nor $max_upload_chunk_size_bytes
+ if ($size == 0) {
+ return 10000000; // 10MB
+ }
+ return $size;
+ }
+ $size = min(
+ jirafeau_get_max_upload_size_bytes(),
+ $max_upload_chunk_size_bytes
+ );
+ if ($size == 0) {
+ return $max_upload_chunk_size_bytes;
+ }
+ return $size;
}
/**
* @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. ');
- 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_PARTIAL:
+ case UPLOAD_ERR_NO_FILE:
+ return
+ t('Your file was not uploaded correctly. You may succeed in retrying. ');
- 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;
-
- default:
- break;
- }
- return _('Unknown error.');
+ 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. ');
+ }
+ return t('Unknown error. ');
}
/** Remove link and it's file
* @param $link the link's name (hash)
*/
-function jirafeau_delete($link) {
- if(!file_exists(VAR_LINKS . $link))
- return;
+function jirafeau_delete_link($link)
+{
+ $l = jirafeau_get_link($link);
+ if (!count($l)) {
+ return;
+ }
- $content = file(VAR_LINKS . $link);
- $md5 = trim($content[5]);
- unlink(VAR_LINKS . $link);
+ jirafeau_clean_rm_link($link);
- $counter = 1;
- if (file_exists(VAR_FILES . $md5 . '_count')) {
- $content = file(VAR_FILES . $md5 . '_count');
- $counter = trim($content[0]);
- }
- $counter--;
+ $hash = $l['hash'];
+ $p = s2p("$hash");
- if ($counter >= 1) {
- $handle = fopen(VAR_FILES . $md5 . '_count', 'w');
- fwrite($handle, $counter);
- fclose($handle);
- }
+ $counter = 1;
+ if (file_exists(VAR_FILES . $p . $hash. '_count')) {
+ $content = file(VAR_FILES . $p . $hash. '_count');
+ $counter = trim($content[0]);
+ }
+ $counter--;
+
+ if ($counter >= 1) {
+ $handle = fopen(VAR_FILES . $p . $hash. '_count', 'w');
+ fwrite($handle, $counter);
+ fclose($handle);
+ }
- if ($counter == 0 && file_exists(VAR_FILES. $md5)) {
- unlink (VAR_FILES . $md5);
- unlink (VAR_FILES . $md5 . '_count');
- }
+ if ($counter == 0) {
+ jirafeau_clean_rm_file($hash);
+ }
+}
+
+/**
+ * Delete a file and it's links.
+ */
+function jirafeau_delete_file($hash)
+{
+ $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($l)) {
+ continue;
+ }
+ if ($l['hash'] == $hash) {
+ $count++;
+ jirafeau_delete_link($node);
+ }
+ }
+ }
+ }
+ jirafeau_clean_rm_file($hash);
+ return $count;
+}
+
+
+/** hash file's content
+ * @param $method hash method, see 'file_hash' option. Valid methods are 'md5', 'md5_outside' or 'random'
+ * @param $file_path file to hash
+ * @returns hash string
+ */
+function jirafeau_hash_file($method, $file_path)
+{
+ switch ($method) {
+ case 'md5_outside':
+ return jirafeau_md5_outside($file_path);
+ case 'md5':
+ return md5_file($file_path);
+ case 'random':
+ return jirafeau_gen_random(32);
+ }
+ return md5_file($file_path);
+}
+
+/** hash part of file: start, end and size.
+ * This is a partial file hash, faster but weaker.
+ * @param $file_path file to hash
+ * @returns hash string
+ */
+function jirafeau_md5_outside($file_path)
+{
+ $out = false;
+ $handle = fopen($file_path, "r");
+ if ($handle === false) {
+ return false;
+ }
+ $size = filesize($file_path);
+ if ($size === false) {
+ goto err;
+ }
+ $first = fread($handle, 64);
+ if ($first === false) {
+ goto err;
+ }
+ if (fseek($handle, $size < 64 ? 0 : $size - 64) == -1) {
+ goto err;
+ }
+ $last = fread($handle, 64);
+ if ($last === false) {
+ goto err;
+ }
+ $out = md5($first . $last . $size);
+ err:
+ fclose($handle);
+ return $out;
}
/**
* @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 . $md5_link)) {
- unlink($link_tmp_name);
- $counter--;
- if ($counter >= 1) {
- $handle = fopen(VAR_FILES . $md5 . '_count', 'w');
- fwrite($handle, $counter);
- fclose($handle);
- }
- else {
- unlink(VAR_FILES . $md5 . '_count');
- unlink(VAR_FILES . $md5);
- }
- return(array(
- 'error' => array(
- 'has_error' => true,
- 'why' => _('Internal error during file creation.')),
- 'link' => '')
+function jirafeau_upload($file, $one_time_download, $key, $time, $ip, $crypt, $link_name_length, $file_hash_method)
+{
+ if (empty($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 information */
+ $hash = jirafeau_hash_file($file_hash_method, $file['tmp_name']);
+ $name = str_replace(NL, '', trim($file['name']));
+ $mime_type = $file['type'];
+ $size = $file['size'];
+
+ /* does file already exist ? */
+ $rc = false;
+ $p = s2p("$hash");
+ if (file_exists(VAR_FILES . $p . $hash)) {
+ $rc = unlink($file['tmp_name']);
+ } elseif ((file_exists(VAR_FILES . $p) || @mkdir(VAR_FILES . $p, 0755, true))
+ && move_uploaded_file($file['tmp_name'], VAR_FILES . $p . $hash)) {
+ $rc = true;
+ }
+ if (!$rc) {
+ return (array(
+ 'error' =>
+ array('has_error' => true,
+ 'why' => t('INTERNAL_ERROR_DEL')),
+ 'link' =>'',
+ 'delete_link' => ''));
+ }
+
+ /* Increment or create count file. */
+ $counter = 0;
+ if (file_exists(VAR_FILES . $p . $hash . '_count')) {
+ $content = file(VAR_FILES . $p . $hash. '_count');
+ $counter = trim($content[0]);
+ }
+ $counter++;
+ $handle = fopen(VAR_FILES . $p . $hash. '_count', 'w');
+ fwrite($handle, $counter);
+ fclose($handle);
+
+ /* Create delete code. */
+ $delete_link_code = jirafeau_gen_random(5);
+
+ /* hash password or empty. */
+ $password = '';
+ if (!empty($key)) {
+ $password = md5($key);
+ }
+
+ /* create link file */
+ $link_tmp_name = VAR_LINKS . $hash . rand(0, 10000) . '.tmp';
+ $handle = fopen($link_tmp_name, 'w');
+ fwrite(
+ $handle,
+ $name . NL. $mime_type . NL. $size . NL. $password . NL. $time .
+ NL . $hash. NL . ($one_time_download ? 'O' : 'R') . NL . time() .
+ NL . $ip . NL. $delete_link_code . NL . ($crypted ? 'C' : 'O')
);
- }
- return(array('error' => $noerr, 'link' => $md5_link));
+ fclose($handle);
+ $hash_link = substr(base_16_to_64(md5_file($link_tmp_name)), 0, $link_name_length);
+ $l = s2p("$hash_link");
+ if (!@mkdir(VAR_LINKS . $l, 0755, true) ||
+ !rename($link_tmp_name, VAR_LINKS . $l . $hash_link)) {
+ if (file_exists($link_tmp_name)) {
+ unlink($link_tmp_name);
+ }
+
+ $counter--;
+ if ($counter >= 1) {
+ $handle = fopen(VAR_FILES . $p . $hash. '_count', 'w');
+ fwrite($handle, $counter);
+ fclose($handle);
+ } else {
+ jirafeau_clean_rm_file($hash_link);
+ }
+ return array(
+ 'error' =>
+ array('has_error' => true,
+ 'why' => t('Internal error during file creation. ')),
+ 'link' =>'',
+ 'delete_link' => '');
+ }
+ return array( 'error' => $noerr,
+ 'link' => $hash_link,
+ 'delete_link' => $delete_link_code,
+ 'crypt_key' => $crypt_key);
}
/**
- * tells if a mime-type is viewable in a browser
+ * 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)) {
+ $viewable = array('image', 'video', 'audio');
+ $decomposed = explode('/', $mime);
+ if (in_array($decomposed[0], $viewable) && strpos($mime, 'image/svg+xml') === false) {
+ return true;
+ }
+ $viewable = array('text/plain');
+ if (in_array($mime, $viewable)) {
+ return true;
+ }
+ }
+ return false;
}
-
// Error handling functions.
//! Global array that contains all registered errors.
-$error_list = array ();
+$error_list = array();
/**
* Adds an error to the list of errors.
* @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);
+ 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 $error) {
}
}
-?>
+function check_errors($cfg)
+{
+ if (!($cfg['installation_done'] === true)) {
+ if (file_exists(JIRAFEAU_ROOT . 'install.php')) {
+ header('Location: install.php');
+ exit;
+ } else {
+ add_error(t('INSTALL_FILE_NOT_FOUND_TITLE'), t('INSTALL_FILE_NOT_FOUND_DESC'));
+ }
+ }
+
+ if (!is_writable(VAR_FILES)) {
+ add_error(t('FILE_DIR_W'), VAR_FILES);
+ }
+
+ if (!is_writable(VAR_LINKS)) {
+ add_error(t('LINK_DIR_W'), VAR_LINKS);
+ }
+
+ if (!is_writable(VAR_ASYNC)) {
+ add_error(t('ASYNC_DIR_W'), VAR_ASYNC);
+ }
+
+ if ($cfg['enable_crypt'] && $cfg['litespeed_workaround']) {
+ add_error(t('INCOMPATIBLE_OPTIONS_W'), 'enable_crypt=true<br>litespeed_workaround=true');
+ }
+
+ if ($cfg['one_time_download'] && $cfg['litespeed_workaround']) {
+ add_error(t('INCOMPATIBLE_OPTIONS_W'), 'one_time_download=true<br>litespeed_workaround=true');
+ }
+}
+
+/**
+ * Read link information
+ * @return array containing information.
+ */
+function jirafeau_get_link($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]);
+ $out['hash'] = trim($c[5]);
+ $out['onetime'] = trim($c[6]);
+ $out['upload_date'] = trim($c[7]);
+ $out['ip'] = trim($c[8]);
+ $out['link_code'] = trim($c[9]);
+ $out['crypted'] = trim($c[10]) == 'C';
+
+ 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') . ": " . jirafeau_escape($name);
+ }
+ if (!empty($file_hash)) {
+ echo t('FILE') . ": " . jirafeau_escape($file_hash);
+ }
+ if (!empty($link_hash)) {
+ echo t('LINK') . ": " . jirafeau_escape($link_hash);
+ }
+ if (empty($name) && empty($file_hash) && empty($link_hash)) {
+ echo t('LS_FILES');
+ }
+ echo '</legend>';
+ echo '<table>';
+ echo '<tr>';
+ echo '<th></th>';
+ echo '<th>' . t('ACTION') . '</th>';
+ 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 information. */
+ $l = jirafeau_get_link($node);
+ if (!count($l)) {
+ continue;
+ }
+
+ /* Filter. */
+ if (!empty($name) && !@preg_match("/$name/i", jirafeau_escape($l['file_name']))) {
+ continue;
+ }
+ if (!empty($file_hash) && $file_hash != $l['hash']) {
+ continue;
+ }
+ if (!empty($link_hash) && $link_hash != $node) {
+ continue;
+ }
+ /* Print link information. */
+ echo '<tr>';
+ echo '<td>' .
+ '<strong><a id="upload_link" href="f.php?h='. jirafeau_escape($node) .'" title="' .
+ t('DL_PAGE') . '">' . jirafeau_escape($l['file_name']) . '</a></strong><br/>';
+ echo t('TYPE') . ': ' . jirafeau_escape($l['mime_type']) . '<br/>';
+ echo t('SIZE') . ': ' . jirafeau_human_size($l['file_size']) . '<br>';
+ echo t('EXPIRE') . ': ' . ($l['time'] == -1 ? '∞' : jirafeau_get_datetimefield($l['time'])) . '<br/>';
+ echo t('ONETIME') . ': ' . ($l['onetime'] == 'O' ? 'Yes' : 'No') . '<br/>';
+ echo t('UPLOAD_DATE') . ': ' . jirafeau_get_datetimefield($l['upload_date']) . '<br/>';
+ if (strlen($l['ip']) > 0) {
+ echo t('ORIGIN') . ': ' . $l['ip'] . '<br/>';
+ }
+ echo '</td><td>';
+ echo '<form method="post">' .
+ '<input type = "hidden" name = "action" value = "download"/>' .
+ '<input type = "hidden" name = "link" value = "' . $node . '"/>' .
+ jirafeau_admin_csrf_field() .
+ '<input type = "submit" value = "' . t('DL') . '" />' .
+ '</form>' .
+ '<form method="post">' .
+ '<input type = "hidden" name = "action" value = "delete_link"/>' .
+ '<input type = "hidden" name = "link" value = "' . $node . '"/>' .
+ jirafeau_admin_csrf_field() .
+ '<input type = "submit" value = "' . t('DEL_LINK') . '" />' .
+ '</form>' .
+ '<form method="post">' .
+ '<input type = "hidden" name = "action" value = "delete_file"/>' .
+ '<input type = "hidden" name = "hash" value = "' . $l['hash'] . '"/>' .
+ jirafeau_admin_csrf_field() .
+ '<input type = "submit" value = "' . t('DEL_FILE_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 information. */
+ $l = jirafeau_get_link(basename($node));
+ if (!count($l)) {
+ continue;
+ }
+ $p = s2p($l['hash']);
+ if ($l['time'] > 0 && $l['time'] < time() || // expired
+ !file_exists(VAR_FILES . $p . $l['hash']) || // invalid
+ !file_exists(VAR_FILES . $p . $l['hash'] . '_count')) { // invalid
+ jirafeau_delete_link($node);
+ $count++;
+ }
+ }
+ }
+ }
+ return $count;
+}
+
+
+/**
+ * Clean old async transfers.
+ * @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 information. */
+ $a = jirafeau_get_async_ref(basename($node));
+ if (!count($a)) {
+ continue;
+ }
+ /* Delete transfers older than 1 hour. */
+ if (time() - $a['last_edited'] > 3600) {
+ jirafeau_async_delete(basename($node));
+ $count++;
+ }
+ }
+ }
+ }
+ return $count;
+}
+
+/**
+ * Better strval function for debug purposes
+ */
+function jirafeau_strval($value)
+{
+ if (gettype($value) == "boolean") {
+ return $value ? 'true' : 'false';
+ }
+ return strval($value);
+}
+
+/**
+ * Show file/folder permissions
+ */
+function jirafeau_fileperms($path)
+{
+ $out = substr(sprintf("%o", @fileperms($path)), -4) . ", ";
+ $out .= "read " . (is_readable($path) ? "OK" : "KO") . ", ";
+ $out .= "write " . (is_writable($path) ? "OK" : "KO");
+ return $out;
+}
+
+/**
+ * Show some useful informations for bug reporting.
+ */
+function jirafeau_admin_bug_report($cfg)
+{
+ $out = "<fieldset><legend>" . t('REPORTING_AN_ISSUE') . "</legend>";
+ $out .= "If you have a problem related to Jirafeau, please <a href='https://gitlab.com/mojo42/Jirafeau/-/issues'>open an issue</a>, explain your problem in english and copy-paste the following content:<br/><br/><code>";
+
+ $out .= "# Jirafeau<br/>";
+ $out .= "- version: " . JIRAFEAU_VERSION . "<br/>";
+ $jirafeau_options = [
+ 'debug',
+ 'file_hash',
+ 'litespeed_workaround',
+ 'store_uploader_ip',
+ 'installation_done',
+ 'enable_crypt',
+ 'preview',
+ 'maximal_upload_size',
+ 'store_uploader_ip',
+ 'max_upload_chunk_size_bytes'
+ ];
+ foreach ($jirafeau_options as &$o) {
+ $v = $cfg[$o];
+ $out .= "- $o: " . jirafeau_strval($v) . " (" . gettype($v) . ")<br/>";
+ }
+ $out .= "<br/>";
+
+ $out .= "# PHP options<br/>";
+ $out .= "- php version: " . phpversion() . "<br/>";
+ $out .= "- mcrypt version: " . phpversion('mcrypt') . "<br/>";
+ $php_options = [
+ 'post_max_size',
+ 'upload_max_filesize',
+ 'safe_mode',
+ 'max_execution_time',
+ 'max_input_time'
+ ];
+ foreach ($php_options as &$o) {
+ $v = ini_get($o);
+ $out .= "- $o: " . jirafeau_strval($v) . " (" . gettype($v). ")<br/>";
+ }
+ $out .= "- can set_time_limit: " . (set_time_limit(0) ? "yes" : "no") . "<br/>";
+ $out .= "<br/>";
+
+ $out .= "# File permissions<br/>";
+ $out .= "- 'var' folder permissions: " . jirafeau_fileperms($cfg['var_root']) . "<br/>";
+ $out .= "- 'file' folder permissions: " . jirafeau_fileperms(VAR_FILES) . "<br/>";
+ $out .= "- 'links' folder permissions: " . jirafeau_fileperms(VAR_LINKS) . "<br/>";
+ $out .= "- 'async' folder permissions: " . jirafeau_fileperms(VAR_ASYNC) . "<br/>";
+ $out .= "<br/>";
+
+ $out .= "# Server details<br/>";
+ $out .= "- server software: " . $_SERVER["SERVER_SOFTWARE"] . "<br/>";
+ $out .= "<br/>";
+
+ $out .= "# OS details<br/>";
+ $out .= "- OS: " . php_uname() . "<br/>";
+ $out .= "<br/>";
+
+ $out .= "# Browser details<br/>";
+ $out .= "<script type='text/javascript' lang='Javascript'>
+ // @license magnet:?xt=urn:btih:0b31508aeb0634b347b8270c7bee4d411b5d4109&dn=agpl-3.0.txt AGPL-v3-or-Later
+ document.write('- html5 support: ' + (check_html5_file_api() ? 'yes' : 'no') + '<br/>');
+ document.write('- user agent: ' + navigator.userAgent + '<br/>');
+ // @license-end
+ </script>";
+ $out .= "<br/>";
+
+ $out .= "# Memory<br/>";
+ $out .= "- memory_get_peak_usage: " . jirafeau_human_size(memory_get_peak_usage()) . "<br/>";
+
+ $out .= "</code></fieldset>";
+ return $out;
+}
+
+/**
+ * Read async transfer information
+ * @return array containing information.
+ */
+function jirafeau_get_async_ref($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 $out;
+}
+
+/**
+ * Delete async transfer information
+ */
+function jirafeau_async_delete($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 $filename Name of the file to send
+ * @param $one_time One time upload parameter
+ * @param $key eventual password (or blank)
+ * @param $time time limit
+ * @param $ip ip address of the client
+ * @return a string containing a temporary reference followed by a code or a string starting with 'Error'
+ */
+function jirafeau_async_init($filename, $type, $one_time, $key, $time, $ip)
+{
+ /* 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)) {
+ return 'Error: cannot create async folder.';
+ }
+
+ /* touch empty data file */
+ $w_path = $p . $ref . '_data';
+ touch($w_path);
+
+ /* md5 password or empty */
+ $password = '';
+ if (!empty($key)) {
+ $password = md5($key);
+ }
+
+ /* Store information. */
+ $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 .
+ time() . 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 $max_file_size maximum allowed file size
+ * @return a string containing a next code to use or a string starting with 'Error'
+ */
+function jirafeau_async_push($ref, $data, $code, $max_file_size)
+{
+ /* Get async infos. */
+ $a = jirafeau_get_async_ref($ref);
+
+ /* Check some errors. */
+ if (count($a) == 0) {
+ return "Error: cannot find transfer";
+ }
+ if ($a['next_code'] != "$code") {
+ return "Error: bad transfer code";
+ }
+ if ($data['error'] != UPLOAD_ERR_OK) {
+ // Check error code in https://www.php.net/manual/en/features.file-upload.errors.php
+ $data_details = print_r($data, true);
+ return "Error: upload error: {$data_details}";
+ }
+ if (empty($data['tmp_name'])) {
+ return "Error: missing tmp_name";
+ }
+ if (!is_uploaded_file($data['tmp_name'])) {
+ return "Error: tmp_name may not be uploaded";
+ }
+
+ $p = s2p($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: file size is above upload limit";
+ }
+
+ /* 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: cannot write file";
+ }
+ }
+ 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 .
+ time() . NL . $code . NL
+ );
+ fclose($handle);
+ return $code;
+}
+
+/**
+ * Finalize an asynchronous upload.
+ * @param $ref asynchronous upload reference
+ * @param $code client code for this operation
+ * @param $crypt boolean asking to crypt or not
+ * @param $link_name_length link name length
+ * @return a string containing the download reference followed by a delete code or a string starting with 'Error'
+ */
+function jirafeau_async_end($ref, $code, $crypt, $link_name_length, $file_hash_method)
+{
+ /* Get async infos. */
+ $a = jirafeau_get_async_ref($ref);
+ if (count($a) == 0
+ || $a['next_code'] != "$code") {
+ return "Error: bad code for ending transfer";
+ }
+
+ /* Generate link infos. */
+ $p = VAR_ASYNC . s2p($ref) . $ref . "_data";
+ if (!file_exists($p)) {
+ return "Error: referenced file does not exist";
+ }
+
+ $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;
+ }
+ }
+
+ $hash = jirafeau_hash_file($file_hash_method, $p);
+ $size = filesize($p);
+ $np = s2p($hash);
+ $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 . $hash)) {
+ rename($p, VAR_FILES . $np . $hash);
+ }
+
+ /* Increment or create count file. */
+ $counter = 0;
+ if (file_exists(VAR_FILES . $np . $hash . '_count')) {
+ $content = file(VAR_FILES . $np . $hash. '_count');
+ $counter = trim($content[0]);
+ }
+ $counter++;
+ $handle = fopen(VAR_FILES . $np . $hash. '_count', 'w');
+ fwrite($handle, $counter);
+ fclose($handle);
+
+ /* Create link. */
+ $link_tmp_name = VAR_LINKS . $hash . 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 . $hash . NL . $a['onetime'] . NL .
+ time() . NL . $a['ip'] . NL . $delete_link_code . NL . ($crypted ? 'C' : 'O')
+ );
+ fclose($handle);
+ $hash_link = substr(base_16_to_64(md5_file($link_tmp_name)), 0, $link_name_length);
+ $l = s2p("$hash_link");
+ if (!@mkdir(VAR_LINKS . $l, 0755, true)) {
+ return "Error: cannot create folder in LINKS";
+ }
+ if (!rename($link_tmp_name, VAR_LINKS . $l . $hash_link)) {
+ return "Error: cannot rename file in LINKS";
+ }
+
+ /* Clean async upload. */
+ jirafeau_async_delete($ref);
+ return $hash_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);
+ $hash_key = md5($crypt_key);
+ $iv = jirafeau_crypt_create_iv($hash_key, mcrypt_enc_get_iv_size($m));
+ /* Init module. */
+ mcrypt_generic_init($m, $hash_key, $iv);
+ /* Crypt file. */
+ $r = fopen($fp_src, 'r');
+ $w = fopen($fp_dst, 'c');
+ while (!feof($r)) {
+ $to_enc = fread($r, 1024);
+ if (strlen($to_enc) > 0) {
+ $enc = mcrypt_generic($m, $to_enc);
+ if (fwrite($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') == false) {
+ return false;
+ }
+
+ /* Init module */
+ $m = mcrypt_module_open('rijndael-256', '', 'ofb', '');
+ /* Extract key and iv. */
+ $crypt_key = $k;
+ $hash_key = md5($crypt_key);
+ $iv = jirafeau_crypt_create_iv($hash_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 the given IP is whitelisted by the given list.
+ *
+ * @param $allowedIpList array of allowed IPs
+ * @param $challengedIp IP to be challenged
+ * @return true if IP is authorized, false otherwise.
+ */
+function jirafeau_challenge_ip($allowedIpList, $challengedIp)
+{
+ foreach ($allowedIpList as $i) {
+ if ($i == $challengedIp) {
+ return true;
+ }
+ // CIDR test for IPv4 only.
+ if (strpos($i, '/') !== false) {
+ list($subnet, $mask) = explode('/', $i);
+ if ((ip2long($challengedIp) & ~((1 << (32 - $mask)) - 1)) == ip2long($subnet)) {
+ return true;
+ }
+ }
+ }
+ return false;
+}
+
+/**
+ * Check if Jirafeau has a restriction on the IP address for uploading.
+ * @return true if uploading is IP restricted, false otherwise.
+ */
+function jirafeau_upload_has_ip_restriction($cfg)
+{
+ return count($cfg['upload_ip']) > 0;
+}
+
+/**
+ * Test if visitor's IP is authorized to upload at all.
+ *
+ * @param $cfg configuration
+ * @param $challengedIp IP to be challenged
+ * @return true if IP is authorized, false otherwise.
+ */
+function jirafeau_challenge_upload_ip($cfg, $challengedIp)
+{
+ // If no IP address have been listed, allow upload from any IP
+ if (!jirafeau_upload_has_ip_restriction($cfg)) {
+ return true;
+ }
+ return jirafeau_challenge_ip($cfg['upload_ip'], $challengedIp);
+}
+
+/**
+ * Test if visitor's IP is authorized to upload without a password.
+ *
+ * @param $cfg configuration
+ * @param $challengedIp IP to be challenged
+ * @return true if IP is authorized, false otherwise.
+ */
+function jirafeau_challenge_upload_ip_without_password($cfg, $challengedIp)
+{
+ return jirafeau_challenge_ip($cfg['upload_ip_nopassword'], $challengedIp);
+}
+
+/**
+ * Test if visitor's IP is authorized or password is supplied and authorized
+ * @param $ip IP to be challenged
+ * @param $password password to be challenged
+ * @return true if access is valid, false otherwise.
+ */
+function jirafeau_challenge_upload($cfg, $ip, $password)
+{
+ return jirafeau_challenge_upload_ip_without_password($cfg, $ip) ||
+ (!jirafeau_has_upload_password($cfg) && !jirafeau_upload_has_ip_restriction($cfg)) ||
+ (jirafeau_challenge_upload_password($cfg, $password) && jirafeau_challenge_upload_ip($cfg, $ip));
+}
+
+/** Tell if we have some HTTP headers generated by a proxy */
+function has_http_forwarded()
+{
+ return
+ !empty($_SERVER['HTTP_X_FORWARDED_FOR']) ||
+ !empty($_SERVER['http_X_forwarded_for']);
+}
+
+/**
+ * Generate IP list from HTTP headers generated by a proxy
+ * @return array of IP strings
+ */
+function get_ip_list_http_forwarded()
+{
+ $ip_list = array();
+ if (!empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
+ $l = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
+ if ($l === false) {
+ return array();
+ }
+ foreach ($l as $ip) {
+ array_push($ip_list, preg_replace('/\s+/', '', $ip));
+ }
+ }
+ if (!empty($_SERVER['http_X_forwarded_for'])) {
+ $l = explode(',', $_SERVER['http_X_forwarded_for']);
+ foreach ($l as $ip) {
+ // Separate IP from port
+ $ipa = explode(':', $ip);
+ if ($ipa === false) {
+ continue;
+ }
+ $ip = $ipa[0];
+ array_push($ip_list, preg_replace('/\s+/', '', $ip));
+ }
+ }
+ return $ip_list;
+}
+
+/**
+ * Get the ip address of the client from REMOTE_ADDR
+ * or from HTTP_X_FORWARDED_FOR if behind a proxy
+ * @returns the client ip address
+ */
+function get_ip_address($cfg)
+{
+ $remote = $_SERVER['REMOTE_ADDR'];
+ if (count($cfg['proxy_ip']) == 0 || !has_http_forwarded()) {
+ return $remote;
+ }
+
+ $ip_list = get_ip_list_http_forwarded();
+ if (count($ip_list) == 0) {
+ return $remote;
+ }
+
+ foreach ($cfg['proxy_ip'] as $proxy_ip) {
+ if ($remote != $proxy_ip) {
+ continue;
+ }
+ // Take the last IP (the one which has been set by the defined proxy).
+ return end($ip_list);
+ }
+ return $remote;
+}
+
+/**
+ * Convert hexadecimal string to base64
+ */
+function hex_to_base64($hex)
+{
+ $b = '';
+ foreach (str_split($hex, 2) as $pair) {
+ $b .= chr(hexdec($pair));
+ }
+ return base64_encode($b);
+}
+
+/**
+ * Replace markers in templates.
+ *
+ * Available markers have the scheme "###MARKERNAME###".
+ *
+ * @param $content string Template text with markers
+ * @param $htmllinebreaks boolean Convert linebreaks to BR-Tags
+ * @return Template with replaced markers
+ */
+function jirafeau_replace_markers($content, $htmllinebreaks = false)
+{
+ $patterns = array(
+ '/###ORGANISATION###/',
+ '/###CONTACTPERSON###/',
+ '/###WEBROOT###/'
+ );
+ $replacements = array(
+ $GLOBALS['cfg']['organisation'],
+ $GLOBALS['cfg']['contactperson'],
+ $GLOBALS['cfg']['web_root']
+ );
+ $content = preg_replace($patterns, $replacements, $content);
+
+ if (true === $htmllinebreaks) {
+ $content = nl2br($content);
+ }
+
+ return $content;
+}
+
+function jirafeau_escape($string)
+{
+ return htmlspecialchars($string, ENT_QUOTES);
+}
+
+function jirafeau_admin_session_start()
+{
+ $_SESSION['admin_auth'] = true;
+ $_SESSION['admin_csrf'] = md5(uniqid(mt_rand(), true));
+}
+
+function jirafeau_session_end()
+{
+ $_SESSION = array();
+ session_destroy();
+}
+
+function jirafeau_admin_session_logged()
+{
+ return isset($_SESSION['admin_auth']) &&
+ isset($_SESSION['admin_csrf']) &&
+ isset($_POST['admin_csrf']) &&
+ $_SESSION['admin_auth'] === true &&
+ $_SESSION['admin_csrf'] === $_POST['admin_csrf'];
+}
+
+function jirafeau_admin_csrf_field()
+{
+ return "<input type='hidden' name='admin_csrf' value='". $_SESSION['admin_csrf'] . "'/>";
+}
+
+function jirafeau_user_session_start()
+{
+ $_SESSION['user_auth'] = true;
+}
+
+function jirafeau_user_session_logged()
+{
+ return isset($_SESSION['user_auth']) &&
+ $_SESSION['user_auth'] === true;
+}
+
+function jirafeau_dir_size($dir)
+{
+ $size = 0;
+ foreach (glob(rtrim($dir, '/').'/*', GLOB_NOSORT) as $entry) {
+ $size += is_file($entry) ? filesize($entry) : jirafeau_dir_size($entry);
+ }
+ return $size;
+}
+
+function jirafeau_export_cfg($cfg)
+{
+ $content = '<?php' . NL;
+ $content .= '/* This file was generated by the install process. ' .
+ 'You can edit it. Please see config.original.php to understand the ' .
+ 'configuration items. */' . NL;
+ $content .= '$cfg = ' . var_export($cfg, true) . ';';
+
+ $fileWrite = file_put_contents(JIRAFEAU_CFG, $content);
+
+ if (false === $fileWrite) {
+ jirafeau_fatal_error(t('Can not write local configuration file'));
+ }
+}
+
+function jirafeau_mkdir($path)
+{
+ return !(!file_exists($path) && !@mkdir($path, 0755));
+}
+
+/**
+ * Returns true whether the path is writable or we manage to make it
+ * so, which essentially is the same thing.
+ * @param $path is the file or directory to be tested.
+ * @return true if $path is writable.
+ */
+function jirafeau_is_writable($path)
+{
+ /* "@" gets rid of error messages. */
+ return is_writable($path) || @chmod($path, 0777);
+}
+
+function jirafeau_check_var_dir($path)
+{
+ $mkdir_str1 = t('CANNOT_CREATE_DIR') . ':';
+ $mkdir_str2 = t('MANUAL_CREATE');
+ $write_str1 = t('DIR_NOT_W') . ':';
+ $write_str2 = t('You should give the write permission to the web server on ' .
+ 'this directory.');
+ $solution_str = t('HERE_SOLUTION') . ':';
+
+ if (!jirafeau_mkdir($path) || !jirafeau_is_writable($path)) {
+ return array('has_error' => true,
+ 'why' => $mkdir_str1 . '<br /><code>' .
+ $path . '</code><br />' . $solution_str .
+ '<br />' . $mkdir_str2);
+ }
+
+ foreach (array('files', 'links', 'async') as $subdir) {
+ $subpath = $path.$subdir;
+
+ if (!jirafeau_mkdir($subpath) || !jirafeau_is_writable($subpath)) {
+ return array('has_error' => true,
+ 'why' => $mkdir_str1 . '<br /><code>' .
+ $subpath . '</code><br />' . $solution_str .
+ '<br />' . $mkdir_str2);
+ }
+ }
+
+ return array('has_error' => false, 'why' => '');
+}
+
+function jirafeau_add_ending_slash($path)
+{
+ return $path . ((substr($path, -1) == '/') ? '' : '/');
+}
+
+function jirafeau_default_web_root()
+{
+ return $_SERVER['HTTP_HOST'] . str_replace('install.php', '', $_SERVER['REQUEST_URI']);
+}
git.p6c8.net / jirafeau_mojo42.git / blobdiff