+
+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()
+{
+ $url_scheme = (isset($_SERVER['HTTPS'])) ? 'https://' : 'http://';
+ return $url_scheme . $_SERVER['HTTP_HOST'] . str_replace('install.php', '', $_SERVER['REQUEST_URI']);
+}
+
+function jirafeau_get_download_stats($hash)
+{
+ $filename = VAR_LINKS . s2p("$hash") . $hash . '_download';
+
+ if (!file_exists($filename)) {
+ return array('count'=>0);
+ }
+
+ $c = file($filename);
+ $data['count'] = trim($c[0]);
+ $data['date'] = trim($c[1]);
+ $data['ip'] = trim($c[2]);
+
+ return $data;
+}
+
+function jirafeau_write_download_stats($hash, $ip)
+{
+ $data = jirafeau_get_download_stats($hash);
+ $count = $data['count'];
+ $count++;
+
+ $filename = VAR_LINKS . s2p("$hash") . $hash . '_download';
+
+ $handle = fopen($filename, 'w');
+ fwrite($handle, $count . NL . time() . NL . $ip);
+ fclose($handle);
+}