forked from GNUsocial/gnu-social
2051 lines
61 KiB
PHP
2051 lines
61 KiB
PHP
<?php
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/*
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2008, 2009, StatusNet, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* XXX: break up into separate modules (HTTP, user, files) */
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/**
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* Show a server error.
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*/
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function common_server_error($msg, $code=500)
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{
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$err = new ServerErrorAction($msg, $code);
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$err->showPage();
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}
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/**
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* Show a user error.
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*/
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function common_user_error($msg, $code=400)
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{
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$err = new ClientErrorAction($msg, $code);
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$err->showPage();
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}
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/**
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* This should only be used at setup; processes switching languages
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* to send text to other users should use common_switch_locale().
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*
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* @param string $language Locale language code (optional; empty uses
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* current user's preference or site default)
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* @return mixed success
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*/
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function common_init_locale($language=null)
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{
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if(!$language) {
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$language = common_language();
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}
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putenv('LANGUAGE='.$language);
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putenv('LANG='.$language);
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$ok = setlocale(LC_ALL, $language . ".utf8",
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$language . ".UTF8",
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$language . ".utf-8",
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$language . ".UTF-8",
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$language);
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return $ok;
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}
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/**
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* Initialize locale and charset settings and gettext with our message catalog,
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* using the current user's language preference or the site default.
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*
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* This should generally only be run at framework initialization; code switching
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* languages at runtime should call common_switch_language().
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*
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* @access private
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*/
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function common_init_language()
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{
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mb_internal_encoding('UTF-8');
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// Note that this setlocale() call may "fail" but this is harmless;
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// gettext will still select the right language.
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$language = common_language();
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$locale_set = common_init_locale($language);
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if (!$locale_set) {
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// The requested locale doesn't exist on the system.
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//
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// gettext seems very picky... We first need to setlocale()
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// to a locale which _does_ exist on the system, and _then_
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// we can set in another locale that may not be set up
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// (say, ga_ES for Galego/Galician) it seems to take it.
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//
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// For some reason C and POSIX which are guaranteed to work
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// don't do the job. en_US.UTF-8 should be there most of the
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// time, but not guaranteed.
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$ok = common_init_locale("en_US");
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if (!$ok && strtolower(substr(PHP_OS, 0, 3)) != 'win') {
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// Try to find a complete, working locale on Unix/Linux...
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// @fixme shelling out feels awfully inefficient
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// but I don't think there's a more standard way.
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$all = `locale -a`;
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foreach (explode("\n", $all) as $locale) {
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if (preg_match('/\.utf[-_]?8$/i', $locale)) {
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$ok = setlocale(LC_ALL, $locale);
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if ($ok) {
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break;
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}
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}
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}
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}
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if (!$ok) {
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common_log(LOG_ERR, "Unable to find a UTF-8 locale on this system; UI translations may not work.");
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}
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$locale_set = common_init_locale($language);
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}
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common_init_gettext();
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}
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/**
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* @access private
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*/
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function common_init_gettext()
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{
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setlocale(LC_CTYPE, 'C');
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// So we do not have to make people install the gettext locales
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$path = common_config('site','locale_path');
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bindtextdomain("statusnet", $path);
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bind_textdomain_codeset("statusnet", "UTF-8");
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textdomain("statusnet");
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}
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/**
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* Switch locale during runtime, and poke gettext until it cries uncle.
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* Otherwise, sometimes it doesn't actually switch away from the old language.
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*
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* @param string $language code for locale ('en', 'fr', 'pt_BR' etc)
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*/
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function common_switch_locale($language=null)
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{
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common_init_locale($language);
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setlocale(LC_CTYPE, 'C');
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// So we do not have to make people install the gettext locales
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$path = common_config('site','locale_path');
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bindtextdomain("statusnet", $path);
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bind_textdomain_codeset("statusnet", "UTF-8");
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textdomain("statusnet");
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}
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function common_timezone()
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{
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if (common_logged_in()) {
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$user = common_current_user();
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if ($user->timezone) {
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return $user->timezone;
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}
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}
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return common_config('site', 'timezone');
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}
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function common_language()
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{
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// If there is a user logged in and they've set a language preference
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// then return that one...
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if (_have_config() && common_logged_in()) {
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$user = common_current_user();
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$user_language = $user->language;
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if ($user->language) {
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// Validate -- we don't want to end up with a bogus code
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// left over from some old junk.
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foreach (common_config('site', 'languages') as $code => $info) {
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if ($info['lang'] == $user_language) {
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return $user_language;
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}
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}
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}
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}
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// Otherwise, find the best match for the languages requested by the
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// user's browser...
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if (common_config('site', 'langdetect')) {
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$httplang = isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) ? $_SERVER['HTTP_ACCEPT_LANGUAGE'] : null;
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if (!empty($httplang)) {
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$language = client_prefered_language($httplang);
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if ($language)
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return $language;
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}
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}
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// Finally, if none of the above worked, use the site's default...
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return common_config('site', 'language');
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}
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/**
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* Salted, hashed passwords are stored in the DB.
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*/
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function common_munge_password($password, $id)
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{
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if (is_object($id) || is_object($password)) {
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$e = new Exception();
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common_log(LOG_ERR, __METHOD__ . ' object in param to common_munge_password ' .
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str_replace("\n", " ", $e->getTraceAsString()));
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}
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return md5($password . $id);
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}
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/**
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* Check if a username exists and has matching password.
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*/
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function common_check_user($nickname, $password)
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{
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// empty nickname always unacceptable
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if (empty($nickname)) {
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return false;
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}
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$authenticatedUser = false;
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if (Event::handle('StartCheckPassword', array($nickname, $password, &$authenticatedUser))) {
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$user = User::staticGet('nickname', common_canonical_nickname($nickname));
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if (!empty($user)) {
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if (!empty($password)) { // never allow login with blank password
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if (0 == strcmp(common_munge_password($password, $user->id),
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$user->password)) {
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//internal checking passed
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$authenticatedUser = $user;
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}
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}
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}
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Event::handle('EndCheckPassword', array($nickname, $password, $authenticatedUser));
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}
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return $authenticatedUser;
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}
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/**
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* Is the current user logged in?
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*/
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function common_logged_in()
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{
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return (!is_null(common_current_user()));
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}
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function common_have_session()
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{
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return (0 != strcmp(session_id(), ''));
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}
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function common_ensure_session()
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{
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$c = null;
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if (array_key_exists(session_name(), $_COOKIE)) {
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$c = $_COOKIE[session_name()];
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}
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if (!common_have_session()) {
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if (common_config('sessions', 'handle')) {
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Session::setSaveHandler();
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}
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if (array_key_exists(session_name(), $_GET)) {
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$id = $_GET[session_name()];
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} else if (array_key_exists(session_name(), $_COOKIE)) {
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$id = $_COOKIE[session_name()];
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}
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if (isset($id)) {
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session_id($id);
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}
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@session_start();
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if (!isset($_SESSION['started'])) {
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$_SESSION['started'] = time();
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if (!empty($id)) {
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common_log(LOG_WARNING, 'Session cookie "' . $_COOKIE[session_name()] . '" ' .
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' is set but started value is null');
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}
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}
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}
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}
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// Three kinds of arguments:
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// 1) a user object
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// 2) a nickname
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// 3) null to clear
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// Initialize to false; set to null if none found
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$_cur = false;
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function common_set_user($user)
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{
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global $_cur;
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if (is_null($user) && common_have_session()) {
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$_cur = null;
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unset($_SESSION['userid']);
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return true;
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} else if (is_string($user)) {
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$nickname = $user;
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$user = User::staticGet('nickname', $nickname);
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} else if (!($user instanceof User)) {
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return false;
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}
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if ($user) {
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if (Event::handle('StartSetUser', array(&$user))) {
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if($user){
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common_ensure_session();
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$_SESSION['userid'] = $user->id;
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$_cur = $user;
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Event::handle('EndSetUser', array($user));
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return $_cur;
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}
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}
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}
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return false;
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}
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function common_set_cookie($key, $value, $expiration=0)
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{
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$path = common_config('site', 'path');
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$server = common_config('site', 'server');
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if ($path && ($path != '/')) {
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$cookiepath = '/' . $path . '/';
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} else {
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$cookiepath = '/';
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}
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return setcookie($key,
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$value,
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$expiration,
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$cookiepath,
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$server);
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}
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define('REMEMBERME', 'rememberme');
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define('REMEMBERME_EXPIRY', 30 * 24 * 60 * 60); // 30 days
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function common_rememberme($user=null)
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{
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if (!$user) {
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$user = common_current_user();
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if (!$user) {
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return false;
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}
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}
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$rm = new Remember_me();
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$rm->code = common_good_rand(16);
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$rm->user_id = $user->id;
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// Wrap the insert in some good ol' fashioned transaction code
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$rm->query('BEGIN');
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$result = $rm->insert();
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if (!$result) {
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common_log_db_error($rm, 'INSERT', __FILE__);
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return false;
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}
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$rm->query('COMMIT');
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$cookieval = $rm->user_id . ':' . $rm->code;
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common_log(LOG_INFO, 'adding rememberme cookie "' . $cookieval . '" for ' . $user->nickname);
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common_set_cookie(REMEMBERME, $cookieval, time() + REMEMBERME_EXPIRY);
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return true;
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}
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function common_remembered_user()
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{
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$user = null;
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$packed = isset($_COOKIE[REMEMBERME]) ? $_COOKIE[REMEMBERME] : null;
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if (!$packed) {
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return null;
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}
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list($id, $code) = explode(':', $packed);
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if (!$id || !$code) {
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common_log(LOG_WARNING, 'Malformed rememberme cookie: ' . $packed);
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common_forgetme();
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return null;
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}
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$rm = Remember_me::staticGet($code);
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if (!$rm) {
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common_log(LOG_WARNING, 'No such remember code: ' . $code);
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common_forgetme();
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return null;
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}
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if ($rm->user_id != $id) {
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common_log(LOG_WARNING, 'Rememberme code for wrong user: ' . $rm->user_id . ' != ' . $id);
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common_forgetme();
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return null;
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}
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$user = User::staticGet($rm->user_id);
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if (!$user) {
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common_log(LOG_WARNING, 'No such user for rememberme: ' . $rm->user_id);
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common_forgetme();
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return null;
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}
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// successful!
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$result = $rm->delete();
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if (!$result) {
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common_log_db_error($rm, 'DELETE', __FILE__);
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common_log(LOG_WARNING, 'Could not delete rememberme: ' . $code);
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common_forgetme();
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return null;
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}
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common_log(LOG_INFO, 'logging in ' . $user->nickname . ' using rememberme code ' . $rm->code);
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common_set_user($user);
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common_real_login(false);
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// We issue a new cookie, so they can log in
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// automatically again after this session
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common_rememberme($user);
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return $user;
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}
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/**
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* must be called with a valid user!
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*/
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function common_forgetme()
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{
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common_set_cookie(REMEMBERME, '', 0);
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}
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/**
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* Who is the current user?
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*/
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function common_current_user()
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{
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global $_cur;
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if (!_have_config()) {
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return null;
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}
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if ($_cur === false) {
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if (isset($_COOKIE[session_name()]) || isset($_GET[session_name()])
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|| (isset($_SESSION['userid']) && $_SESSION['userid'])) {
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common_ensure_session();
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$id = isset($_SESSION['userid']) ? $_SESSION['userid'] : false;
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if ($id) {
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$user = User::staticGet($id);
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if ($user) {
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$_cur = $user;
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return $_cur;
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}
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}
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}
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// that didn't work; try to remember; will init $_cur to null on failure
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$_cur = common_remembered_user();
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if ($_cur) {
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// XXX: Is this necessary?
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$_SESSION['userid'] = $_cur->id;
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}
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}
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return $_cur;
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}
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/**
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* Logins that are 'remembered' aren't 'real' -- they're subject to
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* cookie-stealing. So, we don't let them do certain things. New reg,
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* OpenID, and password logins _are_ real.
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*/
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function common_real_login($real=true)
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{
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common_ensure_session();
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$_SESSION['real_login'] = $real;
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}
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function common_is_real_login()
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{
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return common_logged_in() && $_SESSION['real_login'];
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}
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/**
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* Get a hash portion for HTTP caching Etags and such including
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* info on the current user's session. If login/logout state changes,
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* or we've changed accounts, or we've renamed the current user,
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* we'll get a new hash value.
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*
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* This should not be considered secure information.
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*
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* @param User $user (optional; uses common_current_user() if left out)
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* @return string
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*/
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function common_user_cache_hash($user=false)
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{
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if ($user === false) {
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$user = common_current_user();
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}
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if ($user) {
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return crc32($user->id . ':' . $user->nickname);
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} else {
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return '0';
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}
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}
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// get canonical version of nickname for comparison
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function common_canonical_nickname($nickname)
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{
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|
// XXX: UTF-8 canonicalization (like combining chars)
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return strtolower($nickname);
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}
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|
// get canonical version of email for comparison
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|
function common_canonical_email($email)
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|
{
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|
// XXX: canonicalize UTF-8
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|
// XXX: lcase the domain part
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return $email;
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}
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function common_render_content($text, $notice)
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{
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$r = common_render_text($text);
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$id = $notice->profile_id;
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$r = common_linkify_mentions($r, $notice);
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$r = preg_replace('/(^|[\s\.\,\:\;]+)!([A-Za-z0-9]{1,64})/e', "'\\1!'.common_group_link($id, '\\2')", $r);
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return $r;
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}
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function common_linkify_mentions($text, $notice)
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{
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$mentions = common_find_mentions($text, $notice);
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// We need to go through in reverse order by position,
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|
// so our positions stay valid despite our fudging with the
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// string!
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$points = array();
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|
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foreach ($mentions as $mention)
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{
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$points[$mention['position']] = $mention;
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}
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krsort($points);
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foreach ($points as $position => $mention) {
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$linkText = common_linkify_mention($mention);
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$text = substr_replace($text, $linkText, $position, mb_strlen($mention['text']));
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}
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|
return $text;
|
|
}
|
|
|
|
function common_linkify_mention($mention)
|
|
{
|
|
$output = null;
|
|
|
|
if (Event::handle('StartLinkifyMention', array($mention, &$output))) {
|
|
|
|
$xs = new XMLStringer(false);
|
|
|
|
$attrs = array('href' => $mention['url'],
|
|
'class' => 'url');
|
|
|
|
if (!empty($mention['title'])) {
|
|
$attrs['title'] = $mention['title'];
|
|
}
|
|
|
|
$xs->elementStart('span', 'vcard');
|
|
$xs->elementStart('a', $attrs);
|
|
$xs->element('span', 'fn nickname', $mention['text']);
|
|
$xs->elementEnd('a');
|
|
$xs->elementEnd('span');
|
|
|
|
$output = $xs->getString();
|
|
|
|
Event::handle('EndLinkifyMention', array($mention, &$output));
|
|
}
|
|
|
|
return $output;
|
|
}
|
|
|
|
function common_find_mentions($text, $notice)
|
|
{
|
|
$mentions = array();
|
|
|
|
$sender = Profile::staticGet('id', $notice->profile_id);
|
|
|
|
if (empty($sender)) {
|
|
return $mentions;
|
|
}
|
|
|
|
if (Event::handle('StartFindMentions', array($sender, $text, &$mentions))) {
|
|
// Get the context of the original notice, if any
|
|
$originalAuthor = null;
|
|
$originalNotice = null;
|
|
$originalMentions = array();
|
|
|
|
// Is it a reply?
|
|
|
|
if (!empty($notice) && !empty($notice->reply_to)) {
|
|
$originalNotice = Notice::staticGet('id', $notice->reply_to);
|
|
if (!empty($originalNotice)) {
|
|
$originalAuthor = Profile::staticGet('id', $originalNotice->profile_id);
|
|
|
|
$ids = $originalNotice->getReplies();
|
|
|
|
foreach ($ids as $id) {
|
|
$repliedTo = Profile::staticGet('id', $id);
|
|
if (!empty($repliedTo)) {
|
|
$originalMentions[$repliedTo->nickname] = $repliedTo;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
preg_match_all('/^T ([A-Z0-9]{1,64}) /',
|
|
$text,
|
|
$tmatches,
|
|
PREG_OFFSET_CAPTURE);
|
|
|
|
preg_match_all('/(?:^|\s+)@(['.NICKNAME_FMT.']{1,64})/',
|
|
$text,
|
|
$atmatches,
|
|
PREG_OFFSET_CAPTURE);
|
|
|
|
$matches = array_merge($tmatches[1], $atmatches[1]);
|
|
|
|
foreach ($matches as $match) {
|
|
$nickname = common_canonical_nickname($match[0]);
|
|
|
|
// Try to get a profile for this nickname.
|
|
// Start with conversation context, then go to
|
|
// sender context.
|
|
|
|
if (!empty($originalAuthor) && $originalAuthor->nickname == $nickname) {
|
|
$mentioned = $originalAuthor;
|
|
} else if (!empty($originalMentions) &&
|
|
array_key_exists($nickname, $originalMentions)) {
|
|
$mentioned = $originalMentions[$nickname];
|
|
} else {
|
|
$mentioned = common_relative_profile($sender, $nickname);
|
|
}
|
|
|
|
if (!empty($mentioned)) {
|
|
$user = User::staticGet('id', $mentioned->id);
|
|
|
|
if ($user) {
|
|
$url = common_local_url('userbyid', array('id' => $user->id));
|
|
} else {
|
|
$url = $mentioned->profileurl;
|
|
}
|
|
|
|
$mention = array('mentioned' => array($mentioned),
|
|
'text' => $match[0],
|
|
'position' => $match[1],
|
|
'url' => $url);
|
|
|
|
if (!empty($mentioned->fullname)) {
|
|
$mention['title'] = $mentioned->fullname;
|
|
}
|
|
|
|
$mentions[] = $mention;
|
|
}
|
|
}
|
|
|
|
// @#tag => mention of all subscriptions tagged 'tag'
|
|
|
|
preg_match_all('/(?:^|[\s\.\,\:\;]+)@#([\pL\pN_\-\.]{1,64})/',
|
|
$text,
|
|
$hmatches,
|
|
PREG_OFFSET_CAPTURE);
|
|
|
|
foreach ($hmatches[1] as $hmatch) {
|
|
|
|
$tag = common_canonical_tag($hmatch[0]);
|
|
|
|
$tagged = Profile_tag::getTagged($sender->id, $tag);
|
|
|
|
$url = common_local_url('subscriptions',
|
|
array('nickname' => $sender->nickname,
|
|
'tag' => $tag));
|
|
|
|
$mentions[] = array('mentioned' => $tagged,
|
|
'text' => $hmatch[0],
|
|
'position' => $hmatch[1],
|
|
'url' => $url);
|
|
}
|
|
|
|
Event::handle('EndFindMentions', array($sender, $text, &$mentions));
|
|
}
|
|
|
|
return $mentions;
|
|
}
|
|
|
|
function common_render_text($text)
|
|
{
|
|
$r = htmlspecialchars($text);
|
|
|
|
$r = preg_replace('/[\x{0}-\x{8}\x{b}-\x{c}\x{e}-\x{19}]/', '', $r);
|
|
$r = common_replace_urls_callback($r, 'common_linkify');
|
|
$r = preg_replace('/(^|\"\;|\'|\(|\[|\{|\s+)#([\pL\pN_\-\.]{1,64})/e', "'\\1#'.common_tag_link('\\2')", $r);
|
|
// XXX: machine tags
|
|
return $r;
|
|
}
|
|
|
|
function common_replace_urls_callback($text, $callback, $notice_id = null) {
|
|
// Start off with a regex
|
|
$regex = '#'.
|
|
'(?:^|[\s\<\>\(\)\[\]\{\}\\\'\\\";]+)(?![\@\!\#])'.
|
|
'('.
|
|
'(?:'.
|
|
'(?:'. //Known protocols
|
|
'(?:'.
|
|
'(?:(?:https?|ftps?|mms|rtsp|gopher|news|nntp|telnet|wais|file|prospero|webcal|irc)://)'.
|
|
'|'.
|
|
'(?:(?:mailto|aim|tel|xmpp):)'.
|
|
')'.
|
|
'(?:[\pN\pL\-\_\+\%\~]+(?::[\pN\pL\-\_\+\%\~]+)?\@)?'. //user:pass@
|
|
'(?:'.
|
|
'(?:'.
|
|
'\[[\pN\pL\-\_\:\.]+(?<![\.\:])\]'. //[dns]
|
|
')|(?:'.
|
|
'[\pN\pL\-\_\:\.]+(?<![\.\:])'. //dns
|
|
')'.
|
|
')'.
|
|
')'.
|
|
'|(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)'. //IPv4
|
|
'|(?:'. //IPv6
|
|
'\[?(?:(?:(?:[0-9A-Fa-f]{1,4}:){7}(?:(?:[0-9A-Fa-f]{1,4})|:))|(?:(?:[0-9A-Fa-f]{1,4}:){6}(?::|(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})|(?::[0-9A-Fa-f]{1,4})))|(?:(?:[0-9A-Fa-f]{1,4}:){5}(?:(?::(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})?)|(?:(?::[0-9A-Fa-f]{1,4}){1,2})))|(?:(?:[0-9A-Fa-f]{1,4}:){4}(?::[0-9A-Fa-f]{1,4}){0,1}(?:(?::(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})?)|(?:(?::[0-9A-Fa-f]{1,4}){1,2})))|(?:(?:[0-9A-Fa-f]{1,4}:){3}(?::[0-9A-Fa-f]{1,4}){0,2}(?:(?::(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})?)|(?:(?::[0-9A-Fa-f]{1,4}){1,2})))|(?:(?:[0-9A-Fa-f]{1,4}:){2}(?::[0-9A-Fa-f]{1,4}){0,3}(?:(?::(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})?)|(?:(?::[0-9A-Fa-f]{1,4}){1,2})))|(?:(?:[0-9A-Fa-f]{1,4}:)(?::[0-9A-Fa-f]{1,4}){0,4}(?:(?::(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})?)|(?:(?::[0-9A-Fa-f]{1,4}){1,2})))|(?::(?::[0-9A-Fa-f]{1,4}){0,5}(?:(?::(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})?)|(?:(?::[0-9A-Fa-f]{1,4}){1,2})))|(?:(?:(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})(?:\.(?:25[0-5]|2[0-4]\d|[01]?\d{1,2})){3})))\]?(?<!:)'.
|
|
')|(?:'. //DNS
|
|
'(?:[\pN\pL\-\_\+\%\~]+(?:\:[\pN\pL\-\_\+\%\~]+)?\@)?'. //user:pass@
|
|
'[\pN\pL\-\_]+(?:\.[\pN\pL\-\_]+)*\.'.
|
|
//tld list from http://data.iana.org/TLD/tlds-alpha-by-domain.txt, also added local, loc, and onion
|
|
'(?:AC|AD|AE|AERO|AF|AG|AI|AL|AM|AN|AO|AQ|AR|ARPA|AS|ASIA|AT|AU|AW|AX|AZ|BA|BB|BD|BE|BF|BG|BH|BI|BIZ|BJ|BM|BN|BO|BR|BS|BT|BV|BW|BY|BZ|CA|CAT|CC|CD|CF|CG|CH|CI|CK|CL|CM|CN|CO|COM|COOP|CR|CU|CV|CX|CY|CZ|DE|DJ|DK|DM|DO|DZ|EC|EDU|EE|EG|ER|ES|ET|EU|FI|FJ|FK|FM|FO|FR|GA|GB|GD|GE|GF|GG|GH|GI|GL|GM|GN|GOV|GP|GQ|GR|GS|GT|GU|GW|GY|HK|HM|HN|HR|HT|HU|ID|IE|IL|IM|IN|INFO|INT|IO|IQ|IR|IS|IT|JE|JM|JO|JOBS|JP|KE|KG|KH|KI|KM|KN|KP|KR|KW|KY|KZ|LA|LB|LC|LI|LK|LR|LS|LT|LU|LV|LY|MA|MC|MD|ME|MG|MH|MIL|MK|ML|MM|MN|MO|MOBI|MP|MQ|MR|MS|MT|MU|MUSEUM|MV|MW|MX|MY|MZ|NA|NAME|NC|NE|NET|NF|NG|NI|NL|NO|NP|NR|NU|NZ|OM|ORG|PA|PE|PF|PG|PH|PK|PL|PM|PN|PR|PRO|PS|PT|PW|PY|QA|RE|RO|RS|RU|RW|SA|SB|SC|SD|SE|SG|SH|SI|SJ|SK|SL|SM|SN|SO|SR|ST|SU|SV|SY|SZ|TC|TD|TEL|TF|TG|TH|TJ|TK|TL|TM|TN|TO|TP|TR|TRAVEL|TT|TV|TW|TZ|UA|UG|UK|US|UY|UZ|VA|VC|VE|VG|VI|VN|VU|WF|WS|XN--0ZWM56D|测试|XN--11B5BS3A9AJ6G|परीक्षा|XN--80AKHBYKNJ4F|испытание|XN--9T4B11YI5A|테스트|XN--DEBA0AD|טעסט|XN--G6W251D|測試|XN--HGBK6AJ7F53BBA|آزمایشی|XN--HLCJ6AYA9ESC7A|பரிட்சை|XN--JXALPDLP|δοκιμή|XN--KGBECHTV|إختبار|XN--ZCKZAH|テスト|YE|YT|YU|ZA|ZM|ZW|local|loc|onion)'.
|
|
')(?![\pN\pL\-\_])'.
|
|
')'.
|
|
'(?:'.
|
|
'(?:\:\d+)?'. //:port
|
|
'(?:/[\pN\pL$\,\!\(\)\.\:\-\_\+\/\=\&\;\%\~\*\$\+\'@]*)?'. // /path
|
|
'(?:\?[\pN\pL\$\,\!\(\)\.\:\-\_\+\/\=\&\;\%\~\*\$\+\'@\/]*)?'. // ?query string
|
|
'(?:\#[\pN\pL$\,\!\(\)\.\:\-\_\+\/\=\&\;\%\~\*\$\+\'\@/\?\#]*)?'. // #fragment
|
|
')(?<![\?\.\,\#\,])'.
|
|
')'.
|
|
'#ixu';
|
|
//preg_match_all($regex,$text,$matches);
|
|
//print_r($matches);
|
|
return preg_replace_callback($regex, curry('callback_helper',$callback,$notice_id) ,$text);
|
|
}
|
|
|
|
function callback_helper($matches, $callback, $notice_id) {
|
|
$url=$matches[1];
|
|
$left = strpos($matches[0],$url);
|
|
$right = $left+strlen($url);
|
|
|
|
$groupSymbolSets=array(
|
|
array(
|
|
'left'=>'(',
|
|
'right'=>')'
|
|
),
|
|
array(
|
|
'left'=>'[',
|
|
'right'=>']'
|
|
),
|
|
array(
|
|
'left'=>'{',
|
|
'right'=>'}'
|
|
),
|
|
array(
|
|
'left'=>'<',
|
|
'right'=>'>'
|
|
)
|
|
);
|
|
$cannotEndWith=array('.','?',',','#');
|
|
$original_url=$url;
|
|
do{
|
|
$original_url=$url;
|
|
foreach($groupSymbolSets as $groupSymbolSet){
|
|
if(substr($url,-1)==$groupSymbolSet['right']){
|
|
$group_left_count = substr_count($url,$groupSymbolSet['left']);
|
|
$group_right_count = substr_count($url,$groupSymbolSet['right']);
|
|
if($group_left_count<$group_right_count){
|
|
$right-=1;
|
|
$url=substr($url,0,-1);
|
|
}
|
|
}
|
|
}
|
|
if(in_array(substr($url,-1),$cannotEndWith)){
|
|
$right-=1;
|
|
$url=substr($url,0,-1);
|
|
}
|
|
}while($original_url!=$url);
|
|
|
|
if(empty($notice_id)){
|
|
$result = call_user_func_array($callback, array($url));
|
|
}else{
|
|
$result = call_user_func_array($callback, array(array($url,$notice_id)) );
|
|
}
|
|
return substr($matches[0],0,$left) . $result . substr($matches[0],$right);
|
|
}
|
|
|
|
if (version_compare(PHP_VERSION, '5.3.0', 'ge')) {
|
|
// lambda implementation in a separate file; PHP 5.2 won't parse it.
|
|
require_once INSTALLDIR . "/lib/curry.php";
|
|
} else {
|
|
function curry($fn) {
|
|
$args = func_get_args();
|
|
array_shift($args);
|
|
$id = uniqid('_partial');
|
|
$GLOBALS[$id] = array($fn, $args);
|
|
return create_function('',
|
|
'$args = func_get_args(); '.
|
|
'return call_user_func_array('.
|
|
'$GLOBALS["'.$id.'"][0],'.
|
|
'array_merge('.
|
|
'$args,'.
|
|
'$GLOBALS["'.$id.'"][1]));');
|
|
}
|
|
}
|
|
|
|
function common_linkify($url) {
|
|
// It comes in special'd, so we unspecial it before passing to the stringifying
|
|
// functions
|
|
$url = htmlspecialchars_decode($url);
|
|
|
|
if(strpos($url, '@') !== false && strpos($url, ':') === false) {
|
|
//url is an email address without the mailto: protocol
|
|
$canon = "mailto:$url";
|
|
$longurl = "mailto:$url";
|
|
}else{
|
|
|
|
$canon = File_redirection::_canonUrl($url);
|
|
|
|
$longurl_data = File_redirection::where($canon);
|
|
if (is_array($longurl_data)) {
|
|
$longurl = $longurl_data['url'];
|
|
} elseif (is_string($longurl_data)) {
|
|
$longurl = $longurl_data;
|
|
} else {
|
|
// Unable to reach the server to verify contents, etc
|
|
// Just pass the link on through for now.
|
|
common_log(LOG_ERR, "Can't linkify url '$url'");
|
|
$longurl = $url;
|
|
}
|
|
}
|
|
|
|
$attrs = array('href' => $canon, 'title' => $longurl);
|
|
|
|
$is_attachment = false;
|
|
$attachment_id = null;
|
|
$has_thumb = false;
|
|
|
|
// Check to see whether this is a known "attachment" URL.
|
|
|
|
$f = File::staticGet('url', $longurl);
|
|
|
|
if (empty($f)) {
|
|
// XXX: this writes to the database. :<
|
|
$f = File::processNew($longurl);
|
|
}
|
|
|
|
if (!empty($f)) {
|
|
if ($f->getEnclosure() || File_oembed::staticGet('file_id',$f->id)) {
|
|
$is_attachment = true;
|
|
$attachment_id = $f->id;
|
|
|
|
$thumb = File_thumbnail::staticGet('file_id', $f->id);
|
|
if (!empty($thumb)) {
|
|
$has_thumb = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Add clippy
|
|
if ($is_attachment) {
|
|
$attrs['class'] = 'attachment';
|
|
if ($has_thumb) {
|
|
$attrs['class'] = 'attachment thumbnail';
|
|
}
|
|
$attrs['id'] = "attachment-{$attachment_id}";
|
|
}
|
|
|
|
// Whether to nofollow
|
|
|
|
$nf = common_config('nofollow', 'external');
|
|
|
|
if ($nf == 'never') {
|
|
$attrs['rel'] = 'external';
|
|
} else {
|
|
$attrs['rel'] = 'nofollow external';
|
|
}
|
|
|
|
return XMLStringer::estring('a', $attrs, $url);
|
|
}
|
|
|
|
function common_shorten_links($text, $always = false)
|
|
{
|
|
$maxLength = Notice::maxContent();
|
|
if (!$always && ($maxLength == 0 || mb_strlen($text) <= $maxLength)) return $text;
|
|
return common_replace_urls_callback($text, array('File_redirection', 'makeShort'));
|
|
}
|
|
|
|
/**
|
|
* Very basic stripping of invalid UTF-8 input text.
|
|
*
|
|
* @param string $str
|
|
* @return mixed string or null if invalid input
|
|
*
|
|
* @todo ideally we should drop bad chars, and maybe do some of the checks
|
|
* from common_xml_safe_str. But we can't strip newlines, etc.
|
|
* @todo Unicode normalization might also be useful, but not needed now.
|
|
*/
|
|
function common_validate_utf8($str)
|
|
{
|
|
// preg_replace will return NULL on invalid UTF-8 input.
|
|
//
|
|
// Note: empty regex //u also caused NULL return on some
|
|
// production machines, but none of our test machines.
|
|
//
|
|
// This should be replaced with a more reliable check.
|
|
return preg_replace('/\x00/u', '', $str);
|
|
}
|
|
|
|
/**
|
|
* Make sure an arbitrary string is safe for output in XML as a single line.
|
|
*
|
|
* @param string $str
|
|
* @return string
|
|
*/
|
|
function common_xml_safe_str($str)
|
|
{
|
|
// Replace common eol and extra whitespace input chars
|
|
$unWelcome = array(
|
|
"\t", // tab
|
|
"\n", // newline
|
|
"\r", // cr
|
|
"\0", // null byte eos
|
|
"\x0B" // vertical tab
|
|
);
|
|
|
|
$replacement = array(
|
|
' ', // single space
|
|
' ',
|
|
'', // nothing
|
|
'',
|
|
' '
|
|
);
|
|
|
|
$str = str_replace($unWelcome, $replacement, $str);
|
|
|
|
// Neutralize any additional control codes and UTF-16 surrogates
|
|
// (Twitter uses '*')
|
|
return preg_replace('/[\p{Cc}\p{Cs}]/u', '*', $str);
|
|
}
|
|
|
|
function common_tag_link($tag)
|
|
{
|
|
$canonical = common_canonical_tag($tag);
|
|
if (common_config('singleuser', 'enabled')) {
|
|
// regular TagAction isn't set up in 1user mode
|
|
$user = User::singleUser();
|
|
$url = common_local_url('showstream',
|
|
array('nickname' => $user->nickname,
|
|
'tag' => $canonical));
|
|
} else {
|
|
$url = common_local_url('tag', array('tag' => $canonical));
|
|
}
|
|
$xs = new XMLStringer();
|
|
$xs->elementStart('span', 'tag');
|
|
$xs->element('a', array('href' => $url,
|
|
'rel' => 'tag'),
|
|
$tag);
|
|
$xs->elementEnd('span');
|
|
return $xs->getString();
|
|
}
|
|
|
|
function common_canonical_tag($tag)
|
|
{
|
|
$tag = mb_convert_case($tag, MB_CASE_LOWER, "UTF-8");
|
|
return str_replace(array('-', '_', '.'), '', $tag);
|
|
}
|
|
|
|
function common_valid_profile_tag($str)
|
|
{
|
|
return preg_match('/^[A-Za-z0-9_\-\.]{1,64}$/', $str);
|
|
}
|
|
|
|
function common_group_link($sender_id, $nickname)
|
|
{
|
|
$sender = Profile::staticGet($sender_id);
|
|
$group = User_group::getForNickname($nickname, $sender);
|
|
if ($sender && $group && $sender->isMember($group)) {
|
|
$attrs = array('href' => $group->permalink(),
|
|
'class' => 'url');
|
|
if (!empty($group->fullname)) {
|
|
$attrs['title'] = $group->fullname . ' (' . $group->nickname . ')';
|
|
}
|
|
$xs = new XMLStringer();
|
|
$xs->elementStart('span', 'vcard');
|
|
$xs->elementStart('a', $attrs);
|
|
$xs->element('span', 'fn nickname', $nickname);
|
|
$xs->elementEnd('a');
|
|
$xs->elementEnd('span');
|
|
return $xs->getString();
|
|
} else {
|
|
return $nickname;
|
|
}
|
|
}
|
|
|
|
function common_relative_profile($sender, $nickname, $dt=null)
|
|
{
|
|
// Try to find profiles this profile is subscribed to that have this nickname
|
|
$recipient = new Profile();
|
|
// XXX: use a join instead of a subquery
|
|
$recipient->whereAdd('EXISTS (SELECT subscribed from subscription where subscriber = '.$sender->id.' and subscribed = id)', 'AND');
|
|
$recipient->whereAdd("nickname = '" . trim($nickname) . "'", 'AND');
|
|
if ($recipient->find(true)) {
|
|
// XXX: should probably differentiate between profiles with
|
|
// the same name by date of most recent update
|
|
return $recipient;
|
|
}
|
|
// Try to find profiles that listen to this profile and that have this nickname
|
|
$recipient = new Profile();
|
|
// XXX: use a join instead of a subquery
|
|
$recipient->whereAdd('EXISTS (SELECT subscriber from subscription where subscribed = '.$sender->id.' and subscriber = id)', 'AND');
|
|
$recipient->whereAdd("nickname = '" . trim($nickname) . "'", 'AND');
|
|
if ($recipient->find(true)) {
|
|
// XXX: should probably differentiate between profiles with
|
|
// the same name by date of most recent update
|
|
return $recipient;
|
|
}
|
|
// If this is a local user, try to find a local user with that nickname.
|
|
$sender = User::staticGet($sender->id);
|
|
if ($sender) {
|
|
$recipient_user = User::staticGet('nickname', $nickname);
|
|
if ($recipient_user) {
|
|
return $recipient_user->getProfile();
|
|
}
|
|
}
|
|
// Otherwise, no links. @messages from local users to remote users,
|
|
// or from remote users to other remote users, are just
|
|
// outside our ability to make intelligent guesses about
|
|
return null;
|
|
}
|
|
|
|
function common_local_url($action, $args=null, $params=null, $fragment=null, $addSession=true)
|
|
{
|
|
$r = Router::get();
|
|
$path = $r->build($action, $args, $params, $fragment);
|
|
|
|
$ssl = common_is_sensitive($action);
|
|
|
|
if (common_config('site','fancy')) {
|
|
$url = common_path(mb_substr($path, 1), $ssl, $addSession);
|
|
} else {
|
|
if (mb_strpos($path, '/index.php') === 0) {
|
|
$url = common_path(mb_substr($path, 1), $ssl, $addSession);
|
|
} else {
|
|
$url = common_path('index.php'.$path, $ssl, $addSession);
|
|
}
|
|
}
|
|
return $url;
|
|
}
|
|
|
|
function common_is_sensitive($action)
|
|
{
|
|
static $sensitive = array(
|
|
'login',
|
|
'register',
|
|
'passwordsettings',
|
|
'api',
|
|
'ApiOauthRequestToken',
|
|
'ApiOauthAccessToken',
|
|
'ApiOauthAuthorize',
|
|
'ApiOauthPin',
|
|
'showapplication'
|
|
);
|
|
$ssl = null;
|
|
|
|
if (Event::handle('SensitiveAction', array($action, &$ssl))) {
|
|
$ssl = in_array($action, $sensitive);
|
|
}
|
|
|
|
return $ssl;
|
|
}
|
|
|
|
function common_path($relative, $ssl=false, $addSession=true)
|
|
{
|
|
$pathpart = (common_config('site', 'path')) ? common_config('site', 'path')."/" : '';
|
|
|
|
if (($ssl && (common_config('site', 'ssl') === 'sometimes'))
|
|
|| common_config('site', 'ssl') === 'always') {
|
|
$proto = 'https';
|
|
if (is_string(common_config('site', 'sslserver')) &&
|
|
mb_strlen(common_config('site', 'sslserver')) > 0) {
|
|
$serverpart = common_config('site', 'sslserver');
|
|
} else if (common_config('site', 'server')) {
|
|
$serverpart = common_config('site', 'server');
|
|
} else {
|
|
common_log(LOG_ERR, 'Site server not configured, unable to determine site name.');
|
|
}
|
|
} else {
|
|
$proto = 'http';
|
|
if (common_config('site', 'server')) {
|
|
$serverpart = common_config('site', 'server');
|
|
} else {
|
|
common_log(LOG_ERR, 'Site server not configured, unable to determine site name.');
|
|
}
|
|
}
|
|
|
|
if ($addSession) {
|
|
$relative = common_inject_session($relative, $serverpart);
|
|
}
|
|
|
|
return $proto.'://'.$serverpart.'/'.$pathpart.$relative;
|
|
}
|
|
|
|
function common_inject_session($url, $serverpart = null)
|
|
{
|
|
if (common_have_session()) {
|
|
|
|
if (empty($serverpart)) {
|
|
$serverpart = parse_url($url, PHP_URL_HOST);
|
|
}
|
|
|
|
$currentServer = $_SERVER['HTTP_HOST'];
|
|
|
|
// Are we pointing to another server (like an SSL server?)
|
|
|
|
if (!empty($currentServer) &&
|
|
0 != strcasecmp($currentServer, $serverpart)) {
|
|
// Pass the session ID as a GET parameter
|
|
$sesspart = session_name() . '=' . session_id();
|
|
$i = strpos($url, '?');
|
|
if ($i === false) { // no GET params, just append
|
|
$url .= '?' . $sesspart;
|
|
} else {
|
|
$url = substr($url, 0, $i + 1).$sesspart.'&'.substr($url, $i + 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
return $url;
|
|
}
|
|
|
|
function common_date_string($dt)
|
|
{
|
|
// XXX: do some sexy date formatting
|
|
// return date(DATE_RFC822, $dt);
|
|
$t = strtotime($dt);
|
|
$now = time();
|
|
$diff = $now - $t;
|
|
|
|
if ($now < $t) { // that shouldn't happen!
|
|
return common_exact_date($dt);
|
|
} else if ($diff < 60) {
|
|
// TRANS: Used in notices to indicate when the notice was made compared to now.
|
|
return _('a few seconds ago');
|
|
} else if ($diff < 92) {
|
|
// TRANS: Used in notices to indicate when the notice was made compared to now.
|
|
return _('about a minute ago');
|
|
} else if ($diff < 3300) {
|
|
$minutes = round($diff/60);
|
|
// TRANS: Used in notices to indicate when the notice was made compared to now.
|
|
return sprintf( ngettext('about one minute ago', 'about %d minutes ago', $minutes), $minutes);
|
|
} else if ($diff < 5400) {
|
|
// TRANS: Used in notices to indicate when the notice was made compared to now.
|
|
return _('about an hour ago');
|
|
} else if ($diff < 22 * 3600) {
|
|
$hours = round($diff/3600);
|
|
// TRANS: Used in notices to indicate when the notice was made compared to now.
|
|
return sprintf( ngettext('about one hour ago', 'about %d hours ago', $hours), $hours);
|
|
} else if ($diff < 37 * 3600) {
|
|
// TRANS: Used in notices to indicate when the notice was made compared to now.
|
|
return _('about a day ago');
|
|
} else if ($diff < 24 * 24 * 3600) {
|
|
$days = round($diff/(24*3600));
|
|
// TRANS: Used in notices to indicate when the notice was made compared to now.
|
|
return sprintf( ngettext('about one day ago', 'about %d days ago', $days), $days);
|
|
} else if ($diff < 46 * 24 * 3600) {
|
|
// TRANS: Used in notices to indicate when the notice was made compared to now.
|
|
return _('about a month ago');
|
|
} else if ($diff < 330 * 24 * 3600) {
|
|
$months = round($diff/(30*24*3600));
|
|
// TRANS: Used in notices to indicate when the notice was made compared to now.
|
|
return sprintf( ngettext('about one month ago', 'about %d months ago',$months), $months);
|
|
} else if ($diff < 480 * 24 * 3600) {
|
|
// TRANS: Used in notices to indicate when the notice was made compared to now.
|
|
return _('about a year ago');
|
|
} else {
|
|
return common_exact_date($dt);
|
|
}
|
|
}
|
|
|
|
function common_exact_date($dt)
|
|
{
|
|
static $_utc;
|
|
static $_siteTz;
|
|
|
|
if (!$_utc) {
|
|
$_utc = new DateTimeZone('UTC');
|
|
$_siteTz = new DateTimeZone(common_timezone());
|
|
}
|
|
|
|
$dateStr = date('d F Y H:i:s', strtotime($dt));
|
|
$d = new DateTime($dateStr, $_utc);
|
|
$d->setTimezone($_siteTz);
|
|
return $d->format(DATE_RFC850);
|
|
}
|
|
|
|
function common_date_w3dtf($dt)
|
|
{
|
|
$dateStr = date('d F Y H:i:s', strtotime($dt));
|
|
$d = new DateTime($dateStr, new DateTimeZone('UTC'));
|
|
$d->setTimezone(new DateTimeZone(common_timezone()));
|
|
return $d->format(DATE_W3C);
|
|
}
|
|
|
|
function common_date_rfc2822($dt)
|
|
{
|
|
$dateStr = date('d F Y H:i:s', strtotime($dt));
|
|
$d = new DateTime($dateStr, new DateTimeZone('UTC'));
|
|
$d->setTimezone(new DateTimeZone(common_timezone()));
|
|
return $d->format('r');
|
|
}
|
|
|
|
function common_date_iso8601($dt)
|
|
{
|
|
$dateStr = date('d F Y H:i:s', strtotime($dt));
|
|
$d = new DateTime($dateStr, new DateTimeZone('UTC'));
|
|
$d->setTimezone(new DateTimeZone(common_timezone()));
|
|
return $d->format('c');
|
|
}
|
|
|
|
function common_sql_now()
|
|
{
|
|
return common_sql_date(time());
|
|
}
|
|
|
|
function common_sql_date($datetime)
|
|
{
|
|
return strftime('%Y-%m-%d %H:%M:%S', $datetime);
|
|
}
|
|
|
|
/**
|
|
* Return an SQL fragment to calculate an age-based weight from a given
|
|
* timestamp or datetime column.
|
|
*
|
|
* @param string $column name of field we're comparing against current time
|
|
* @param integer $dropoff divisor for age in seconds before exponentiation
|
|
* @return string SQL fragment
|
|
*/
|
|
function common_sql_weight($column, $dropoff)
|
|
{
|
|
if (common_config('db', 'type') == 'pgsql') {
|
|
// PostgreSQL doesn't support timestampdiff function.
|
|
// @fixme will this use the right time zone?
|
|
// @fixme does this handle cross-year subtraction correctly?
|
|
return "sum(exp(-extract(epoch from (now() - $column)) / $dropoff))";
|
|
} else {
|
|
return "sum(exp(timestampdiff(second, utc_timestamp(), $column) / $dropoff))";
|
|
}
|
|
}
|
|
|
|
function common_redirect($url, $code=307)
|
|
{
|
|
static $status = array(301 => "Moved Permanently",
|
|
302 => "Found",
|
|
303 => "See Other",
|
|
307 => "Temporary Redirect");
|
|
|
|
header('HTTP/1.1 '.$code.' '.$status[$code]);
|
|
header("Location: $url");
|
|
|
|
$xo = new XMLOutputter();
|
|
$xo->startXML('a',
|
|
'-//W3C//DTD XHTML 1.0 Strict//EN',
|
|
'http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd');
|
|
$xo->element('a', array('href' => $url), $url);
|
|
$xo->endXML();
|
|
exit;
|
|
}
|
|
|
|
function common_broadcast_notice($notice, $remote=false)
|
|
{
|
|
// DO NOTHING!
|
|
}
|
|
|
|
/**
|
|
* Stick the notice on the queue.
|
|
*/
|
|
function common_enqueue_notice($notice)
|
|
{
|
|
static $localTransports = array('omb',
|
|
'ping');
|
|
|
|
$transports = array();
|
|
if (common_config('sms', 'enabled')) {
|
|
$transports[] = 'sms';
|
|
}
|
|
if (Event::hasHandler('HandleQueuedNotice')) {
|
|
$transports[] = 'plugin';
|
|
}
|
|
|
|
$xmpp = common_config('xmpp', 'enabled');
|
|
|
|
if ($xmpp) {
|
|
$transports[] = 'jabber';
|
|
}
|
|
|
|
// We can skip these for gatewayed notices.
|
|
if ($notice->isLocal()) {
|
|
$transports = array_merge($transports, $localTransports);
|
|
if ($xmpp) {
|
|
$transports[] = 'public';
|
|
}
|
|
}
|
|
|
|
if (Event::handle('StartEnqueueNotice', array($notice, &$transports))) {
|
|
|
|
$qm = QueueManager::get();
|
|
|
|
foreach ($transports as $transport)
|
|
{
|
|
$qm->enqueue($notice, $transport);
|
|
}
|
|
|
|
Event::handle('EndEnqueueNotice', array($notice, $transports));
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Broadcast profile updates to OMB and other remote subscribers.
|
|
*
|
|
* Since this may be slow with a lot of subscribers or bad remote sites,
|
|
* this is run through the background queues if possible.
|
|
*/
|
|
function common_broadcast_profile(Profile $profile)
|
|
{
|
|
$qm = QueueManager::get();
|
|
$qm->enqueue($profile, "profile");
|
|
return true;
|
|
}
|
|
|
|
function common_profile_url($nickname)
|
|
{
|
|
return common_local_url('showstream', array('nickname' => $nickname),
|
|
null, null, false);
|
|
}
|
|
|
|
/**
|
|
* Should make up a reasonable root URL
|
|
*/
|
|
function common_root_url($ssl=false)
|
|
{
|
|
$url = common_path('', $ssl, false);
|
|
$i = strpos($url, '?');
|
|
if ($i !== false) {
|
|
$url = substr($url, 0, $i);
|
|
}
|
|
return $url;
|
|
}
|
|
|
|
/**
|
|
* returns $bytes bytes of random data as a hexadecimal string
|
|
* "good" here is a goal and not a guarantee
|
|
*/
|
|
function common_good_rand($bytes)
|
|
{
|
|
// XXX: use random.org...?
|
|
if (@file_exists('/dev/urandom')) {
|
|
return common_urandom($bytes);
|
|
} else { // FIXME: this is probably not good enough
|
|
return common_mtrand($bytes);
|
|
}
|
|
}
|
|
|
|
function common_urandom($bytes)
|
|
{
|
|
$h = fopen('/dev/urandom', 'rb');
|
|
// should not block
|
|
$src = fread($h, $bytes);
|
|
fclose($h);
|
|
$enc = '';
|
|
for ($i = 0; $i < $bytes; $i++) {
|
|
$enc .= sprintf("%02x", (ord($src[$i])));
|
|
}
|
|
return $enc;
|
|
}
|
|
|
|
function common_mtrand($bytes)
|
|
{
|
|
$enc = '';
|
|
for ($i = 0; $i < $bytes; $i++) {
|
|
$enc .= sprintf("%02x", mt_rand(0, 255));
|
|
}
|
|
return $enc;
|
|
}
|
|
|
|
/**
|
|
* Record the given URL as the return destination for a future
|
|
* form submission, to be read by common_get_returnto().
|
|
*
|
|
* @param string $url
|
|
*
|
|
* @fixme as a session-global setting, this can allow multiple forms
|
|
* to conflict and overwrite each others' returnto destinations if
|
|
* the user has multiple tabs or windows open.
|
|
*
|
|
* Should refactor to index with a token or otherwise only pass the
|
|
* data along its intended path.
|
|
*/
|
|
function common_set_returnto($url)
|
|
{
|
|
common_ensure_session();
|
|
$_SESSION['returnto'] = $url;
|
|
}
|
|
|
|
/**
|
|
* Fetch a return-destination URL previously recorded by
|
|
* common_set_returnto().
|
|
*
|
|
* @return mixed URL string or null
|
|
*
|
|
* @fixme as a session-global setting, this can allow multiple forms
|
|
* to conflict and overwrite each others' returnto destinations if
|
|
* the user has multiple tabs or windows open.
|
|
*
|
|
* Should refactor to index with a token or otherwise only pass the
|
|
* data along its intended path.
|
|
*/
|
|
function common_get_returnto()
|
|
{
|
|
common_ensure_session();
|
|
return (array_key_exists('returnto', $_SESSION)) ? $_SESSION['returnto'] : null;
|
|
}
|
|
|
|
function common_timestamp()
|
|
{
|
|
return date('YmdHis');
|
|
}
|
|
|
|
function common_ensure_syslog()
|
|
{
|
|
static $initialized = false;
|
|
if (!$initialized) {
|
|
openlog(common_config('syslog', 'appname'), 0,
|
|
common_config('syslog', 'facility'));
|
|
$initialized = true;
|
|
}
|
|
}
|
|
|
|
function common_log_line($priority, $msg)
|
|
{
|
|
static $syslog_priorities = array('LOG_EMERG', 'LOG_ALERT', 'LOG_CRIT', 'LOG_ERR',
|
|
'LOG_WARNING', 'LOG_NOTICE', 'LOG_INFO', 'LOG_DEBUG');
|
|
return date('Y-m-d H:i:s') . ' ' . $syslog_priorities[$priority] . ': ' . $msg . PHP_EOL;
|
|
}
|
|
|
|
function common_request_id()
|
|
{
|
|
$pid = getmypid();
|
|
$server = common_config('site', 'server');
|
|
if (php_sapi_name() == 'cli') {
|
|
$script = basename($_SERVER['PHP_SELF']);
|
|
return "$server:$script:$pid";
|
|
} else {
|
|
static $req_id = null;
|
|
if (!isset($req_id)) {
|
|
$req_id = substr(md5(mt_rand()), 0, 8);
|
|
}
|
|
if (isset($_SERVER['REQUEST_URI'])) {
|
|
$url = $_SERVER['REQUEST_URI'];
|
|
}
|
|
$method = $_SERVER['REQUEST_METHOD'];
|
|
return "$server:$pid.$req_id $method $url";
|
|
}
|
|
}
|
|
|
|
function common_log($priority, $msg, $filename=null)
|
|
{
|
|
if(Event::handle('StartLog', array(&$priority, &$msg, &$filename))){
|
|
$msg = '[' . common_request_id() . '] ' . $msg;
|
|
$logfile = common_config('site', 'logfile');
|
|
if ($logfile) {
|
|
$log = fopen($logfile, "a");
|
|
if ($log) {
|
|
$output = common_log_line($priority, $msg);
|
|
fwrite($log, $output);
|
|
fclose($log);
|
|
}
|
|
} else {
|
|
common_ensure_syslog();
|
|
syslog($priority, $msg);
|
|
}
|
|
Event::handle('EndLog', array($priority, $msg, $filename));
|
|
}
|
|
}
|
|
|
|
function common_debug($msg, $filename=null)
|
|
{
|
|
if ($filename) {
|
|
common_log(LOG_DEBUG, basename($filename).' - '.$msg);
|
|
} else {
|
|
common_log(LOG_DEBUG, $msg);
|
|
}
|
|
}
|
|
|
|
function common_log_db_error(&$object, $verb, $filename=null)
|
|
{
|
|
$objstr = common_log_objstring($object);
|
|
$last_error = &PEAR::getStaticProperty('DB_DataObject','lastError');
|
|
if (is_object($last_error)) {
|
|
$msg = $last_error->message;
|
|
} else {
|
|
$msg = 'Unknown error (' . var_export($last_error, true) . ')';
|
|
}
|
|
common_log(LOG_ERR, $msg . '(' . $verb . ' on ' . $objstr . ')', $filename);
|
|
}
|
|
|
|
function common_log_objstring(&$object)
|
|
{
|
|
if (is_null($object)) {
|
|
return "null";
|
|
}
|
|
if (!($object instanceof DB_DataObject)) {
|
|
return "(unknown)";
|
|
}
|
|
$arr = $object->toArray();
|
|
$fields = array();
|
|
foreach ($arr as $k => $v) {
|
|
if (is_object($v)) {
|
|
$fields[] = "$k='".get_class($v)."'";
|
|
} else {
|
|
$fields[] = "$k='$v'";
|
|
}
|
|
}
|
|
$objstring = $object->tableName() . '[' . implode(',', $fields) . ']';
|
|
return $objstring;
|
|
}
|
|
|
|
function common_valid_http_url($url)
|
|
{
|
|
return Validate::uri($url, array('allowed_schemes' => array('http', 'https')));
|
|
}
|
|
|
|
function common_valid_tag($tag)
|
|
{
|
|
if (preg_match('/^tag:(.*?),(\d{4}(-\d{2}(-\d{2})?)?):(.*)$/', $tag, $matches)) {
|
|
return (Validate::email($matches[1]) ||
|
|
preg_match('/^([\w-\.]+)$/', $matches[1]));
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Determine if given domain or address literal is valid
|
|
* eg for use in JIDs and URLs. Does not check if the domain
|
|
* exists!
|
|
*
|
|
* @param string $domain
|
|
* @return boolean valid or not
|
|
*/
|
|
function common_valid_domain($domain)
|
|
{
|
|
$octet = "(?:25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]|[0-9])";
|
|
$ipv4 = "(?:$octet(?:\.$octet){3})";
|
|
if (preg_match("/^$ipv4$/u", $domain)) return true;
|
|
|
|
$group = "(?:[0-9a-f]{1,4})";
|
|
$ipv6 = "(?:\[($group(?::$group){0,7})?(::)?($group(?::$group){0,7})?\])"; // http://tools.ietf.org/html/rfc3513#section-2.2
|
|
|
|
if (preg_match("/^$ipv6$/ui", $domain, $matches)) {
|
|
$before = explode(":", $matches[1]);
|
|
$zeroes = $matches[2];
|
|
$after = explode(":", $matches[3]);
|
|
if ($zeroes) {
|
|
$min = 0;
|
|
$max = 7;
|
|
} else {
|
|
$min = 1;
|
|
$max = 8;
|
|
}
|
|
$explicit = count($before) + count($after);
|
|
if ($explicit < $min || $explicit > $max) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
try {
|
|
require_once "Net/IDNA.php";
|
|
$idn = Net_IDNA::getInstance();
|
|
$domain = $idn->encode($domain);
|
|
} catch (Exception $e) {
|
|
return false;
|
|
}
|
|
|
|
$subdomain = "(?:[a-z0-9][a-z0-9-]*)"; // @fixme
|
|
$fqdn = "(?:$subdomain(?:\.$subdomain)*\.?)";
|
|
|
|
return preg_match("/^$fqdn$/ui", $domain);
|
|
}
|
|
|
|
/* Following functions are copied from MediaWiki GlobalFunctions.php
|
|
* and written by Evan Prodromou. */
|
|
|
|
function common_accept_to_prefs($accept, $def = '*/*')
|
|
{
|
|
// No arg means accept anything (per HTTP spec)
|
|
if(!$accept) {
|
|
return array($def => 1);
|
|
}
|
|
|
|
$prefs = array();
|
|
|
|
$parts = explode(',', $accept);
|
|
|
|
foreach($parts as $part) {
|
|
// FIXME: doesn't deal with params like 'text/html; level=1'
|
|
@list($value, $qpart) = explode(';', trim($part));
|
|
$match = array();
|
|
if(!isset($qpart)) {
|
|
$prefs[$value] = 1;
|
|
} elseif(preg_match('/q\s*=\s*(\d*\.\d+)/', $qpart, $match)) {
|
|
$prefs[$value] = $match[1];
|
|
}
|
|
}
|
|
|
|
return $prefs;
|
|
}
|
|
|
|
function common_mime_type_match($type, $avail)
|
|
{
|
|
if(array_key_exists($type, $avail)) {
|
|
return $type;
|
|
} else {
|
|
$parts = explode('/', $type);
|
|
if(array_key_exists($parts[0] . '/*', $avail)) {
|
|
return $parts[0] . '/*';
|
|
} elseif(array_key_exists('*/*', $avail)) {
|
|
return '*/*';
|
|
} else {
|
|
return null;
|
|
}
|
|
}
|
|
}
|
|
|
|
function common_negotiate_type($cprefs, $sprefs)
|
|
{
|
|
$combine = array();
|
|
|
|
foreach(array_keys($sprefs) as $type) {
|
|
$parts = explode('/', $type);
|
|
if($parts[1] != '*') {
|
|
$ckey = common_mime_type_match($type, $cprefs);
|
|
if($ckey) {
|
|
$combine[$type] = $sprefs[$type] * $cprefs[$ckey];
|
|
}
|
|
}
|
|
}
|
|
|
|
foreach(array_keys($cprefs) as $type) {
|
|
$parts = explode('/', $type);
|
|
if($parts[1] != '*' && !array_key_exists($type, $sprefs)) {
|
|
$skey = common_mime_type_match($type, $sprefs);
|
|
if($skey) {
|
|
$combine[$type] = $sprefs[$skey] * $cprefs[$type];
|
|
}
|
|
}
|
|
}
|
|
|
|
$bestq = 0;
|
|
$besttype = 'text/html';
|
|
|
|
foreach(array_keys($combine) as $type) {
|
|
if($combine[$type] > $bestq) {
|
|
$besttype = $type;
|
|
$bestq = $combine[$type];
|
|
}
|
|
}
|
|
|
|
if ('text/html' === $besttype) {
|
|
return "text/html; charset=utf-8";
|
|
}
|
|
return $besttype;
|
|
}
|
|
|
|
function common_config($main, $sub)
|
|
{
|
|
global $config;
|
|
return (array_key_exists($main, $config) &&
|
|
array_key_exists($sub, $config[$main])) ? $config[$main][$sub] : false;
|
|
}
|
|
|
|
/**
|
|
* Pull arguments from a GET/POST/REQUEST array with first-level input checks:
|
|
* strips "magic quotes" slashes if necessary, and kills invalid UTF-8 strings.
|
|
*
|
|
* @param array $from
|
|
* @return array
|
|
*/
|
|
function common_copy_args($from)
|
|
{
|
|
$to = array();
|
|
$strip = get_magic_quotes_gpc();
|
|
foreach ($from as $k => $v) {
|
|
if(is_array($v)) {
|
|
$to[$k] = common_copy_args($v);
|
|
} else {
|
|
if ($strip) {
|
|
$v = stripslashes($v);
|
|
}
|
|
$to[$k] = strval(common_validate_utf8($v));
|
|
}
|
|
}
|
|
return $to;
|
|
}
|
|
|
|
/**
|
|
* Neutralise the evil effects of magic_quotes_gpc in the current request.
|
|
* This is used before handing a request off to OAuthRequest::from_request.
|
|
* @fixme Doesn't consider vars other than _POST and _GET?
|
|
* @fixme Can't be undone and could corrupt data if run twice.
|
|
*/
|
|
function common_remove_magic_from_request()
|
|
{
|
|
if(get_magic_quotes_gpc()) {
|
|
$_POST=array_map('stripslashes',$_POST);
|
|
$_GET=array_map('stripslashes',$_GET);
|
|
}
|
|
}
|
|
|
|
function common_user_uri(&$user)
|
|
{
|
|
return common_local_url('userbyid', array('id' => $user->id),
|
|
null, null, false);
|
|
}
|
|
|
|
function common_notice_uri(&$notice)
|
|
{
|
|
return common_local_url('shownotice',
|
|
array('notice' => $notice->id),
|
|
null, null, false);
|
|
}
|
|
|
|
// 36 alphanums - lookalikes (0, O, 1, I) = 32 chars = 5 bits
|
|
|
|
function common_confirmation_code($bits)
|
|
{
|
|
// 36 alphanums - lookalikes (0, O, 1, I) = 32 chars = 5 bits
|
|
static $codechars = '23456789ABCDEFGHJKLMNPQRSTUVWXYZ';
|
|
$chars = ceil($bits/5);
|
|
$code = '';
|
|
for ($i = 0; $i < $chars; $i++) {
|
|
// XXX: convert to string and back
|
|
$num = hexdec(common_good_rand(1));
|
|
// XXX: randomness is too precious to throw away almost
|
|
// 40% of the bits we get!
|
|
$code .= $codechars[$num%32];
|
|
}
|
|
return $code;
|
|
}
|
|
|
|
// convert markup to HTML
|
|
|
|
function common_markup_to_html($c)
|
|
{
|
|
$c = preg_replace('/%%action.(\w+)%%/e', "common_local_url('\\1')", $c);
|
|
$c = preg_replace('/%%doc.(\w+)%%/e', "common_local_url('doc', array('title'=>'\\1'))", $c);
|
|
$c = preg_replace('/%%(\w+).(\w+)%%/e', 'common_config(\'\\1\', \'\\2\')', $c);
|
|
return Markdown($c);
|
|
}
|
|
|
|
function common_profile_uri($profile)
|
|
{
|
|
if (!$profile) {
|
|
return null;
|
|
}
|
|
$user = User::staticGet($profile->id);
|
|
if ($user) {
|
|
return $user->uri;
|
|
}
|
|
|
|
$remote = Remote_profile::staticGet($profile->id);
|
|
if ($remote) {
|
|
return $remote->uri;
|
|
}
|
|
// XXX: this is a very bad profile!
|
|
return null;
|
|
}
|
|
|
|
function common_canonical_sms($sms)
|
|
{
|
|
// strip non-digits
|
|
preg_replace('/\D/', '', $sms);
|
|
return $sms;
|
|
}
|
|
|
|
function common_error_handler($errno, $errstr, $errfile, $errline, $errcontext)
|
|
{
|
|
switch ($errno) {
|
|
|
|
case E_ERROR:
|
|
case E_COMPILE_ERROR:
|
|
case E_CORE_ERROR:
|
|
case E_USER_ERROR:
|
|
case E_PARSE:
|
|
case E_RECOVERABLE_ERROR:
|
|
common_log(LOG_ERR, "[$errno] $errstr ($errfile:$errline) [ABORT]");
|
|
die();
|
|
break;
|
|
|
|
case E_WARNING:
|
|
case E_COMPILE_WARNING:
|
|
case E_CORE_WARNING:
|
|
case E_USER_WARNING:
|
|
common_log(LOG_WARNING, "[$errno] $errstr ($errfile:$errline)");
|
|
break;
|
|
|
|
case E_NOTICE:
|
|
case E_USER_NOTICE:
|
|
common_log(LOG_NOTICE, "[$errno] $errstr ($errfile:$errline)");
|
|
break;
|
|
|
|
case E_STRICT:
|
|
case E_DEPRECATED:
|
|
case E_USER_DEPRECATED:
|
|
// XXX: config variable to log this stuff, too
|
|
break;
|
|
|
|
default:
|
|
common_log(LOG_ERR, "[$errno] $errstr ($errfile:$errline) [UNKNOWN LEVEL, die()'ing]");
|
|
die();
|
|
break;
|
|
}
|
|
|
|
// FIXME: show error page if we're on the Web
|
|
/* Don't execute PHP internal error handler */
|
|
return true;
|
|
}
|
|
|
|
function common_session_token()
|
|
{
|
|
common_ensure_session();
|
|
if (!array_key_exists('token', $_SESSION)) {
|
|
$_SESSION['token'] = common_good_rand(64);
|
|
}
|
|
return $_SESSION['token'];
|
|
}
|
|
|
|
function common_cache_key($extra)
|
|
{
|
|
return Cache::key($extra);
|
|
}
|
|
|
|
function common_keyize($str)
|
|
{
|
|
return Cache::keyize($str);
|
|
}
|
|
|
|
function common_memcache()
|
|
{
|
|
return Cache::instance();
|
|
}
|
|
|
|
function common_license_terms($uri)
|
|
{
|
|
if(preg_match('/creativecommons.org\/licenses\/([^\/]+)/', $uri, $matches)) {
|
|
return explode('-',$matches[1]);
|
|
}
|
|
return array($uri);
|
|
}
|
|
|
|
function common_compatible_license($from, $to)
|
|
{
|
|
$from_terms = common_license_terms($from);
|
|
// public domain and cc-by are compatible with everything
|
|
if(count($from_terms) == 1 && ($from_terms[0] == 'publicdomain' || $from_terms[0] == 'by')) {
|
|
return true;
|
|
}
|
|
$to_terms = common_license_terms($to);
|
|
// sa is compatible across versions. IANAL
|
|
if(in_array('sa',$from_terms) || in_array('sa',$to_terms)) {
|
|
return count(array_diff($from_terms, $to_terms)) == 0;
|
|
}
|
|
// XXX: better compatibility check needed here!
|
|
// Should at least normalise URIs
|
|
return ($from == $to);
|
|
}
|
|
|
|
/**
|
|
* returns a quoted table name, if required according to config
|
|
*/
|
|
function common_database_tablename($tablename)
|
|
{
|
|
if(common_config('db','quote_identifiers')) {
|
|
$tablename = '"'. $tablename .'"';
|
|
}
|
|
//table prefixes could be added here later
|
|
return $tablename;
|
|
}
|
|
|
|
/**
|
|
* Shorten a URL with the current user's configured shortening service,
|
|
* or ur1.ca if configured, or not at all if no shortening is set up.
|
|
* Length is not considered.
|
|
*
|
|
* @param string $long_url
|
|
* @return string may return the original URL if shortening failed
|
|
*
|
|
* @fixme provide a way to specify a particular shortener
|
|
* @fixme provide a way to specify to use a given user's shortening preferences
|
|
*/
|
|
function common_shorten_url($long_url)
|
|
{
|
|
$long_url = trim($long_url);
|
|
$user = common_current_user();
|
|
if (empty($user)) {
|
|
// common current user does not find a user when called from the XMPP daemon
|
|
// therefore we'll set one here fix, so that XMPP given URLs may be shortened
|
|
$shortenerName = 'ur1.ca';
|
|
} else {
|
|
$shortenerName = $user->urlshorteningservice;
|
|
}
|
|
|
|
if(Event::handle('StartShortenUrl', array($long_url,$shortenerName,&$shortenedUrl))){
|
|
//URL wasn't shortened, so return the long url
|
|
return $long_url;
|
|
}else{
|
|
//URL was shortened, so return the result
|
|
return trim($shortenedUrl);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @return mixed array($proxy, $ip) for web requests; proxy may be null
|
|
* null if not a web request
|
|
*
|
|
* @fixme X-Forwarded-For can be chained by multiple proxies;
|
|
we should parse the list and provide a cleaner array
|
|
* @fixme X-Forwarded-For can be forged by clients; only use them if trusted
|
|
* @fixme X_Forwarded_For headers will override X-Forwarded-For read through $_SERVER;
|
|
* use function to get exact request headers from Apache if possible.
|
|
*/
|
|
function common_client_ip()
|
|
{
|
|
if (!isset($_SERVER) || !array_key_exists('REQUEST_METHOD', $_SERVER)) {
|
|
return null;
|
|
}
|
|
|
|
if (array_key_exists('HTTP_X_FORWARDED_FOR', $_SERVER)) {
|
|
if (array_key_exists('HTTP_CLIENT_IP', $_SERVER)) {
|
|
$proxy = $_SERVER['HTTP_CLIENT_IP'];
|
|
} else {
|
|
$proxy = $_SERVER['REMOTE_ADDR'];
|
|
}
|
|
$ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
|
|
} else {
|
|
$proxy = null;
|
|
if (array_key_exists('HTTP_CLIENT_IP', $_SERVER)) {
|
|
$ip = $_SERVER['HTTP_CLIENT_IP'];
|
|
} else {
|
|
$ip = $_SERVER['REMOTE_ADDR'];
|
|
}
|
|
}
|
|
|
|
return array($proxy, $ip);
|
|
}
|
|
|
|
function common_url_to_nickname($url)
|
|
{
|
|
static $bad = array('query', 'user', 'password', 'port', 'fragment');
|
|
|
|
$parts = parse_url($url);
|
|
|
|
# If any of these parts exist, this won't work
|
|
|
|
foreach ($bad as $badpart) {
|
|
if (array_key_exists($badpart, $parts)) {
|
|
return null;
|
|
}
|
|
}
|
|
|
|
# We just have host and/or path
|
|
|
|
# If it's just a host...
|
|
if (array_key_exists('host', $parts) &&
|
|
(!array_key_exists('path', $parts) || strcmp($parts['path'], '/') == 0))
|
|
{
|
|
$hostparts = explode('.', $parts['host']);
|
|
|
|
# Try to catch common idiom of nickname.service.tld
|
|
|
|
if ((count($hostparts) > 2) &&
|
|
(strlen($hostparts[count($hostparts) - 2]) > 3) && # try to skip .co.uk, .com.au
|
|
(strcmp($hostparts[0], 'www') != 0))
|
|
{
|
|
return common_nicknamize($hostparts[0]);
|
|
} else {
|
|
# Do the whole hostname
|
|
return common_nicknamize($parts['host']);
|
|
}
|
|
} else {
|
|
if (array_key_exists('path', $parts)) {
|
|
# Strip starting, ending slashes
|
|
$path = preg_replace('@/$@', '', $parts['path']);
|
|
$path = preg_replace('@^/@', '', $path);
|
|
$path = basename($path);
|
|
|
|
// Hack for MediaWiki user pages, in the form:
|
|
// http://example.com/wiki/User:Myname
|
|
// ('User' may be localized.)
|
|
if (strpos($path, ':')) {
|
|
$parts = array_filter(explode(':', $path));
|
|
$path = $parts[count($parts) - 1];
|
|
}
|
|
|
|
if ($path) {
|
|
return common_nicknamize($path);
|
|
}
|
|
}
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
function common_nicknamize($str)
|
|
{
|
|
$str = preg_replace('/\W/', '', $str);
|
|
return strtolower($str);
|
|
}
|