gnu-social/lib/util.php

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<?php
/*
2009-08-26 07:14:12 +09:00
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2008, 2009, StatusNet, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* XXX: break up into separate modules (HTTP, user, files) */
/**
* Show a server error.
*/
function common_server_error($msg, $code=500)
{
$err = new ServerErrorAction($msg, $code);
$err->showPage();
}
/**
* Show a user error.
*/
function common_user_error($msg, $code=400)
{
$err = new ClientErrorAction($msg, $code);
$err->showPage();
}
/**
* This should only be used at setup; processes switching languages
* to send text to other users should use common_switch_locale().
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*
* @param string $language Locale language code (optional; empty uses
* current user's preference or site default)
* @return mixed success
*/
function common_init_locale($language=null)
{
if(!$language) {
$language = common_language();
}
putenv('LANGUAGE='.$language);
putenv('LANG='.$language);
$ok = setlocale(LC_ALL, $language . ".utf8",
$language . ".UTF8",
$language . ".utf-8",
$language . ".UTF-8",
$language);
return $ok;
}
/**
* Initialize locale and charset settings and gettext with our message catalog,
* using the current user's language preference or the site default.
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*
* This should generally only be run at framework initialization; code switching
* languages at runtime should call common_switch_language().
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*
* @access private
*/
function common_init_language()
{
mb_internal_encoding('UTF-8');
// Note that this setlocale() call may "fail" but this is harmless;
// gettext will still select the right language.
$language = common_language();
$locale_set = common_init_locale($language);
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if (!$locale_set) {
// The requested locale doesn't exist on the system.
//
// gettext seems very picky... We first need to setlocale()
// to a locale which _does_ exist on the system, and _then_
// we can set in another locale that may not be set up
// (say, ga_ES for Galego/Galician) it seems to take it.
//
// For some reason C and POSIX which are guaranteed to work
// don't do the job. en_US.UTF-8 should be there most of the
// time, but not guaranteed.
$ok = common_init_locale("en_US");
if (!$ok && strtolower(substr(PHP_OS, 0, 3)) != 'win') {
// Try to find a complete, working locale on Unix/Linux...
// @fixme shelling out feels awfully inefficient
// but I don't think there's a more standard way.
$all = `locale -a`;
foreach (explode("\n", $all) as $locale) {
if (preg_match('/\.utf[-_]?8$/i', $locale)) {
$ok = setlocale(LC_ALL, $locale);
if ($ok) {
break;
}
}
}
}
if (!$ok) {
common_log(LOG_ERR, "Unable to find a UTF-8 locale on this system; UI translations may not work.");
}
$locale_set = common_init_locale($language);
}
common_init_gettext();
}
/**
* @access private
*/
function common_init_gettext()
{
setlocale(LC_CTYPE, 'C');
// So we do not have to make people install the gettext locales
$path = common_config('site','locale_path');
bindtextdomain("statusnet", $path);
bind_textdomain_codeset("statusnet", "UTF-8");
textdomain("statusnet");
}
/**
* Switch locale during runtime, and poke gettext until it cries uncle.
* Otherwise, sometimes it doesn't actually switch away from the old language.
*
* @param string $language code for locale ('en', 'fr', 'pt_BR' etc)
*/
function common_switch_locale($language=null)
{
common_init_locale($language);
setlocale(LC_CTYPE, 'C');
// So we do not have to make people install the gettext locales
$path = common_config('site','locale_path');
bindtextdomain("statusnet", $path);
bind_textdomain_codeset("statusnet", "UTF-8");
textdomain("statusnet");
}
function common_timezone()
{
if (common_logged_in()) {
$user = common_current_user();
if ($user->timezone) {
return $user->timezone;
}
}
return common_config('site', 'timezone');
}
function common_valid_language($lang)
{
if ($lang) {
// Validate -- we don't want to end up with a bogus code
// left over from some old junk.
foreach (common_config('site', 'languages') as $code => $info) {
if ($info['lang'] == $lang) {
return true;
}
}
}
return false;
}
function common_language()
{
// Allow ?uselang=xx override, very useful for debugging
// and helping translators check usage and context.
if (isset($_GET['uselang'])) {
$uselang = strval($_GET['uselang']);
if (common_valid_language($uselang)) {
return $uselang;
}
}
// If there is a user logged in and they've set a language preference
// then return that one...
if (_have_config() && common_logged_in()) {
$user = common_current_user();
if (common_valid_language($user->language)) {
return $user->language;
}
}
// Otherwise, find the best match for the languages requested by the
// user's browser...
if (common_config('site', 'langdetect')) {
$httplang = isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) ? $_SERVER['HTTP_ACCEPT_LANGUAGE'] : null;
if (!empty($httplang)) {
$language = client_prefered_language($httplang);
if ($language)
return $language;
}
}
// Finally, if none of the above worked, use the site's default...
return common_config('site', 'language');
}
/**
* Salted, hashed passwords are stored in the DB.
*/
function common_munge_password($password, $id)
{
if (is_object($id) || is_object($password)) {
$e = new Exception();
common_log(LOG_ERR, __METHOD__ . ' object in param to common_munge_password ' .
str_replace("\n", " ", $e->getTraceAsString()));
}
return md5($password . $id);
}
/**
* Check if a username exists and has matching password.
*/
function common_check_user($nickname, $password)
{
// empty nickname always unacceptable
if (empty($nickname)) {
return false;
}
$authenticatedUser = false;
if (Event::handle('StartCheckPassword', array($nickname, $password, &$authenticatedUser))) {
$user = User::staticGet('nickname', common_canonical_nickname($nickname));
if (!empty($user)) {
if (!empty($password)) { // never allow login with blank password
if (0 == strcmp(common_munge_password($password, $user->id),
$user->password)) {
//internal checking passed
$authenticatedUser = $user;
}
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}
}
Event::handle('EndCheckPassword', array($nickname, $password, $authenticatedUser));
}
return $authenticatedUser;
}
/**
* Is the current user logged in?
*/
function common_logged_in()
{
return (!is_null(common_current_user()));
}
function common_have_session()
{
return (0 != strcmp(session_id(), ''));
}
function common_ensure_session()
{
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$c = null;
if (array_key_exists(session_name(), $_COOKIE)) {
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$c = $_COOKIE[session_name()];
}
if (!common_have_session()) {
if (common_config('sessions', 'handle')) {
Session::setSaveHandler();
}
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if (array_key_exists(session_name(), $_GET)) {
$id = $_GET[session_name()];
} else if (array_key_exists(session_name(), $_COOKIE)) {
$id = $_COOKIE[session_name()];
}
if (isset($id)) {
session_id($id);
}
@session_start();
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if (!isset($_SESSION['started'])) {
$_SESSION['started'] = time();
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if (!empty($id)) {
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common_log(LOG_WARNING, 'Session cookie "' . $_COOKIE[session_name()] . '" ' .
' is set but started value is null');
}
}
}
}
// Three kinds of arguments:
// 1) a user object
// 2) a nickname
// 3) null to clear
// Initialize to false; set to null if none found
$_cur = false;
function common_set_user($user)
{
global $_cur;
if (is_null($user) && common_have_session()) {
$_cur = null;
unset($_SESSION['userid']);
return true;
} else if (is_string($user)) {
$nickname = $user;
$user = User::staticGet('nickname', $nickname);
} else if (!($user instanceof User)) {
return false;
}
if ($user) {
if (Event::handle('StartSetUser', array(&$user))) {
if($user){
common_ensure_session();
$_SESSION['userid'] = $user->id;
$_cur = $user;
Event::handle('EndSetUser', array($user));
return $_cur;
}
}
}
return false;
}
function common_set_cookie($key, $value, $expiration=0)
{
$path = common_config('site', 'path');
$server = common_config('site', 'server');
if ($path && ($path != '/')) {
$cookiepath = '/' . $path . '/';
} else {
$cookiepath = '/';
}
return setcookie($key,
$value,
$expiration,
$cookiepath,
$server,
common_config('site', 'ssl')=='always');
}
define('REMEMBERME', 'rememberme');
define('REMEMBERME_EXPIRY', 30 * 24 * 60 * 60); // 30 days
function common_rememberme($user=null)
{
if (!$user) {
$user = common_current_user();
if (!$user) {
return false;
}
}
$rm = new Remember_me();
$rm->code = common_good_rand(16);
$rm->user_id = $user->id;
// Wrap the insert in some good ol' fashioned transaction code
$rm->query('BEGIN');
$result = $rm->insert();
if (!$result) {
common_log_db_error($rm, 'INSERT', __FILE__);
return false;
}
$rm->query('COMMIT');
$cookieval = $rm->user_id . ':' . $rm->code;
common_log(LOG_INFO, 'adding rememberme cookie "' . $cookieval . '" for ' . $user->nickname);
common_set_cookie(REMEMBERME, $cookieval, time() + REMEMBERME_EXPIRY);
return true;
}
function common_remembered_user()
{
$user = null;
$packed = isset($_COOKIE[REMEMBERME]) ? $_COOKIE[REMEMBERME] : null;
if (!$packed) {
return null;
}
list($id, $code) = explode(':', $packed);
if (!$id || !$code) {
common_log(LOG_WARNING, 'Malformed rememberme cookie: ' . $packed);
common_forgetme();
return null;
}
$rm = Remember_me::staticGet($code);
if (!$rm) {
common_log(LOG_WARNING, 'No such remember code: ' . $code);
common_forgetme();
return null;
}
if ($rm->user_id != $id) {
common_log(LOG_WARNING, 'Rememberme code for wrong user: ' . $rm->user_id . ' != ' . $id);
common_forgetme();
return null;
}
$user = User::staticGet($rm->user_id);
if (!$user) {
common_log(LOG_WARNING, 'No such user for rememberme: ' . $rm->user_id);
common_forgetme();
return null;
}
// successful!
$result = $rm->delete();
if (!$result) {
common_log_db_error($rm, 'DELETE', __FILE__);
common_log(LOG_WARNING, 'Could not delete rememberme: ' . $code);
common_forgetme();
return null;
}
common_log(LOG_INFO, 'logging in ' . $user->nickname . ' using rememberme code ' . $rm->code);
common_set_user($user);
common_real_login(false);
// We issue a new cookie, so they can log in
// automatically again after this session
common_rememberme($user);
return $user;
}
/**
* must be called with a valid user!
*/
function common_forgetme()
{
common_set_cookie(REMEMBERME, '', 0);
}
/**
* Who is the current user?
*/
function common_current_user()
{
global $_cur;
if (!_have_config()) {
return null;
}
if ($_cur === false) {
if (isset($_COOKIE[session_name()]) || isset($_GET[session_name()])
|| (isset($_SESSION['userid']) && $_SESSION['userid'])) {
common_ensure_session();
$id = isset($_SESSION['userid']) ? $_SESSION['userid'] : false;
if ($id) {
$user = User::staticGet($id);
if ($user) {
$_cur = $user;
return $_cur;
}
}
}
// that didn't work; try to remember; will init $_cur to null on failure
$_cur = common_remembered_user();
if ($_cur) {
// XXX: Is this necessary?
$_SESSION['userid'] = $_cur->id;
}
}
return $_cur;
}
/**
* Logins that are 'remembered' aren't 'real' -- they're subject to
* cookie-stealing. So, we don't let them do certain things. New reg,
* OpenID, and password logins _are_ real.
*/
function common_real_login($real=true)
{
common_ensure_session();
$_SESSION['real_login'] = $real;
}
function common_is_real_login()
{
return common_logged_in() && $_SESSION['real_login'];
}
/**
* Get a hash portion for HTTP caching Etags and such including
* info on the current user's session. If login/logout state changes,
* or we've changed accounts, or we've renamed the current user,
* we'll get a new hash value.
*
* This should not be considered secure information.
*
* @param User $user (optional; uses common_current_user() if left out)
* @return string
*/
function common_user_cache_hash($user=false)
{
if ($user === false) {
$user = common_current_user();
}
if ($user) {
return crc32($user->id . ':' . $user->nickname);
} else {
return '0';
}
}
/**
* get canonical version of nickname for comparison
*
* @param string $nickname
* @return string
*
* @throws NicknameException on invalid input
* @deprecated call Nickname::normalize() directly.
*/
function common_canonical_nickname($nickname)
{
return Nickname::normalize($nickname);
}
/**
* get canonical version of email for comparison
*
* @fixme actually normalize
* @fixme reject invalid input
*
* @param string $email
* @return string
*/
function common_canonical_email($email)
{
// XXX: canonicalize UTF-8
// XXX: lcase the domain part
return $email;
}
/**
* Partial notice markup rendering step: build links to !group references.
*
* @param string $text partially rendered HTML
* @param Notice $notice in whose context we're working
* @return string partially rendered HTML
*/
function common_render_content($text, $notice)
{
$r = common_render_text($text);
$id = $notice->profile_id;
$r = common_linkify_mentions($r, $notice);
$r = preg_replace('/(^|[\s\.\,\:\;]+)!(' . Nickname::DISPLAY_FMT . ')/e',
"'\\1!'.common_group_link($id, '\\2')", $r);
return $r;
}
/**
* Finds @-mentions within the partially-rendered text section and
* turns them into live links.
*
* Should generally not be called except from common_render_content().
*
* @param string $text partially-rendered HTML
* @param Notice $notice in-progress or complete Notice object for context
* @return string partially-rendered HTML
*/
function common_linkify_mentions($text, $notice)
{
$mentions = common_find_mentions($text, $notice);
// We need to go through in reverse order by position,
// so our positions stay valid despite our fudging with the
// string!
$points = array();
foreach ($mentions as $mention)
{
$points[$mention['position']] = $mention;
}
krsort($points);
foreach ($points as $position => $mention) {
$linkText = common_linkify_mention($mention);
$text = substr_replace($text, $linkText, $position, mb_strlen($mention['text']));
}
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;
}
/**
* Find @-mentions in the given text, using the given notice object as context.
* References will be resolved with common_relative_profile() against the user
* who posted the notice.
*
* Note the return data format is internal, to be used for building links and
* such. Should not be used directly; rather, call common_linkify_mentions().
*
* @param string $text
* @param Notice $notice notice in whose context we're building links
*
* @return array
*
* @access private
*/
function common_find_mentions($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;
}
}
}
}
$matches = common_find_mentions_raw($text);
foreach ($matches as $match) {
try {
$nickname = Nickname::normalize($match[0]);
} catch (NicknameException $e) {
// Bogus match? Drop it.
continue;
}
// Try to get a profile for this nickname.
// Start with conversation context, then go to
// sender context.
if (!empty($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;
}
/**
* Does the actual regex pulls to find @-mentions in text.
* Should generally not be called directly; for use in common_find_mentions.
*
* @param string $text
* @return array of PCRE match arrays
*/
function common_find_mentions_raw($text)
{
$tmatches = array();
preg_match_all('/^T (' . Nickname::DISPLAY_FMT . ') /',
$text,
$tmatches,
PREG_OFFSET_CAPTURE);
$atmatches = array();
preg_match_all('/(?:^|\s+)@(' . Nickname::DISPLAY_FMT . ')\b/',
$text,
$atmatches,
PREG_OFFSET_CAPTURE);
$matches = array_merge($tmatches[1], $atmatches[1]);
return $matches;
}
function common_render_text($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');
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$r = preg_replace('/(^|\&quot\;|\'|\(|\[|\{|\s+)#([\pL\pN_\-\.]{1,64})/e', "'\\1#'.common_tag_link('\\2')", $r);
// XXX: machine tags
return $r;
}
/**
* Find links in the given text and pass them to the given callback function.
*
* @param string $text
* @param function($text, $arg) $callback: return replacement text
* @param mixed $arg: optional argument will be passed on to the callback
*/
function common_replace_urls_callback($text, $callback, $arg = 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
2009-08-26 03:19:05 +09:00
'(?: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,$arg) ,$text);
}
/**
* Intermediate callback for common_replace_links(), helps resolve some
* ambiguous link forms before passing on to the final callback.
*
* @param array $matches
* @param callable $callback
* @param mixed $arg optional argument to pass on as second param to callback
* @return string
*
* @access private
*/
function callback_helper($matches, $callback, $arg=null) {
$url=$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);
$result = call_user_func_array($callback, array($url, $arg));
return substr($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) {
2009-02-12 23:22:45 +09:00
// 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, common_config('attachments', 'process_links'));
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)) {
if (common_config('attachments', 'process_links')) {
// XXX: this writes to the database. :<
$f = File::processNew($longurl);
}
}
if (!empty($f)) {
if ($f->getEnclosure()) {
$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);
}
/**
* Find and shorten links in a given chunk of text if it's longer than the
* configured notice content limit (or unconditionally).
*
* Side effects: may save file and file_redirection records for referenced URLs.
*
* Pass the $user option or call $user->shortenLinks($text) to ensure the proper
* user's options are used; otherwise the current web session user's setitngs
* will be used or ur1.ca if there is no active web login.
*
* @param string $text
* @param boolean $always (optional)
* @param User $user (optional)
*
* @return string
*/
function common_shorten_links($text, $always = false, User $user=null)
{
Give users more control over URL shortening Users and administrators can set how long an URL can be before it's shortened, and how long a notice can be before all its URLs are shortened. They can also turn off shortening altogether. Squashed commit of the following: commit d136b390115829c4391b3666bb1967f190a0de35 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:39:00 2010 -0400 use site and user settings to determine when to shorten URLs commit 1e1c851ff3cb2da5e0dc3a0b06239a9d9c618488 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:38:40 2010 -0400 add a method to force shortening URLs commit 4d29ca0b91201f6df42940297ed5b64b070efe49 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:41 2010 -0400 static method for getting best URL shortening service commit a9c6a3bace0af44bcf38d1c790425a7be9c72147 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:11 2010 -0400 allow 0 in numeric entries in othersettings commit 767ff2f7ecfd7e76e8418fc79d45e61898f09382 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:36:46 2010 -0400 allow 0 or blank string in inputs commit 1e21af42a685f600f4a53f49a194013e78b12f20 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:01:11 2010 -0400 add more URL-shortening options to othersettings commit 869a6be0f5779aff69018d02f9ac0273946040d9 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:22:51 2010 -0400 move url shortener superclass to lib from plugin commit 9c0c9863d532942b99184f14e923fc3c050f8177 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:20:28 2010 -0400 documentation and whitespace on UrlShortenerPlugin commit 7a1dd5798f0fcf2c03d1257a18ddcb9008879de0 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:05:46 2010 -0400 add defaults for URL shortening commit d259c37ad231ca0010c60e5cfd397bb1732874a4 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 13:40:10 2010 -0400 Add User_urlshortener_prefs Add a table for URL shortener prefs, a corresponding class, and the correct mumbo-jumbo in statusnet.ini to make everything work.
2010-04-26 15:40:36 +09:00
common_debug("common_shorten_links() called");
$user = common_current_user();
$maxLength = User_urlshortener_prefs::maxNoticeLength($user);
common_debug("maxLength = $maxLength");
if ($always || mb_strlen($text) > $maxLength) {
Give users more control over URL shortening Users and administrators can set how long an URL can be before it's shortened, and how long a notice can be before all its URLs are shortened. They can also turn off shortening altogether. Squashed commit of the following: commit d136b390115829c4391b3666bb1967f190a0de35 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:39:00 2010 -0400 use site and user settings to determine when to shorten URLs commit 1e1c851ff3cb2da5e0dc3a0b06239a9d9c618488 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:38:40 2010 -0400 add a method to force shortening URLs commit 4d29ca0b91201f6df42940297ed5b64b070efe49 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:41 2010 -0400 static method for getting best URL shortening service commit a9c6a3bace0af44bcf38d1c790425a7be9c72147 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:11 2010 -0400 allow 0 in numeric entries in othersettings commit 767ff2f7ecfd7e76e8418fc79d45e61898f09382 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:36:46 2010 -0400 allow 0 or blank string in inputs commit 1e21af42a685f600f4a53f49a194013e78b12f20 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:01:11 2010 -0400 add more URL-shortening options to othersettings commit 869a6be0f5779aff69018d02f9ac0273946040d9 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:22:51 2010 -0400 move url shortener superclass to lib from plugin commit 9c0c9863d532942b99184f14e923fc3c050f8177 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:20:28 2010 -0400 documentation and whitespace on UrlShortenerPlugin commit 7a1dd5798f0fcf2c03d1257a18ddcb9008879de0 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:05:46 2010 -0400 add defaults for URL shortening commit d259c37ad231ca0010c60e5cfd397bb1732874a4 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 13:40:10 2010 -0400 Add User_urlshortener_prefs Add a table for URL shortener prefs, a corresponding class, and the correct mumbo-jumbo in statusnet.ini to make everything work.
2010-04-26 15:40:36 +09:00
common_debug("Forcing shortening");
return common_replace_urls_callback($text, array('File_redirection', 'forceShort'), $user);
Give users more control over URL shortening Users and administrators can set how long an URL can be before it's shortened, and how long a notice can be before all its URLs are shortened. They can also turn off shortening altogether. Squashed commit of the following: commit d136b390115829c4391b3666bb1967f190a0de35 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:39:00 2010 -0400 use site and user settings to determine when to shorten URLs commit 1e1c851ff3cb2da5e0dc3a0b06239a9d9c618488 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:38:40 2010 -0400 add a method to force shortening URLs commit 4d29ca0b91201f6df42940297ed5b64b070efe49 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:41 2010 -0400 static method for getting best URL shortening service commit a9c6a3bace0af44bcf38d1c790425a7be9c72147 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:11 2010 -0400 allow 0 in numeric entries in othersettings commit 767ff2f7ecfd7e76e8418fc79d45e61898f09382 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:36:46 2010 -0400 allow 0 or blank string in inputs commit 1e21af42a685f600f4a53f49a194013e78b12f20 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:01:11 2010 -0400 add more URL-shortening options to othersettings commit 869a6be0f5779aff69018d02f9ac0273946040d9 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:22:51 2010 -0400 move url shortener superclass to lib from plugin commit 9c0c9863d532942b99184f14e923fc3c050f8177 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:20:28 2010 -0400 documentation and whitespace on UrlShortenerPlugin commit 7a1dd5798f0fcf2c03d1257a18ddcb9008879de0 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:05:46 2010 -0400 add defaults for URL shortening commit d259c37ad231ca0010c60e5cfd397bb1732874a4 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 13:40:10 2010 -0400 Add User_urlshortener_prefs Add a table for URL shortener prefs, a corresponding class, and the correct mumbo-jumbo in statusnet.ini to make everything work.
2010-04-26 15:40:36 +09:00
} else {
common_debug("Not forcing shortening");
return common_replace_urls_callback($text, array('File_redirection', 'makeShort'), $user);
Give users more control over URL shortening Users and administrators can set how long an URL can be before it's shortened, and how long a notice can be before all its URLs are shortened. They can also turn off shortening altogether. Squashed commit of the following: commit d136b390115829c4391b3666bb1967f190a0de35 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:39:00 2010 -0400 use site and user settings to determine when to shorten URLs commit 1e1c851ff3cb2da5e0dc3a0b06239a9d9c618488 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:38:40 2010 -0400 add a method to force shortening URLs commit 4d29ca0b91201f6df42940297ed5b64b070efe49 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:41 2010 -0400 static method for getting best URL shortening service commit a9c6a3bace0af44bcf38d1c790425a7be9c72147 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:11 2010 -0400 allow 0 in numeric entries in othersettings commit 767ff2f7ecfd7e76e8418fc79d45e61898f09382 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:36:46 2010 -0400 allow 0 or blank string in inputs commit 1e21af42a685f600f4a53f49a194013e78b12f20 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:01:11 2010 -0400 add more URL-shortening options to othersettings commit 869a6be0f5779aff69018d02f9ac0273946040d9 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:22:51 2010 -0400 move url shortener superclass to lib from plugin commit 9c0c9863d532942b99184f14e923fc3c050f8177 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:20:28 2010 -0400 documentation and whitespace on UrlShortenerPlugin commit 7a1dd5798f0fcf2c03d1257a18ddcb9008879de0 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:05:46 2010 -0400 add defaults for URL shortening commit d259c37ad231ca0010c60e5cfd397bb1732874a4 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 13:40:10 2010 -0400 Add User_urlshortener_prefs Add a table for URL shortener prefs, a corresponding class, and the correct mumbo-jumbo in statusnet.ini to make everything work.
2010-04-26 15:40:36 +09:00
}
}
/**
* 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
$nickname = User::singleUserNickname();
$url = common_local_url('showstream',
array('nickname' => $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);
2009-02-17 08:02:04 +09:00
$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);
}
/**
*
* @param <type> $sender_id
* @param <type> $nickname
* @return <type>
* @access private
*/
function common_group_link($sender_id, $nickname)
{
$sender = Profile::staticGet($sender_id);
$group = User_group::getForNickname($nickname, $sender);
if ($sender && $group && $sender->isMember($group)) {
2009-03-30 23:26:36 +09:00
$attrs = array('href' => $group->permalink(),
'class' => 'url');
if (!empty($group->fullname)) {
$attrs['title'] = $group->getFancyName();
2009-03-30 23:26:36 +09:00
}
$xs = new XMLStringer();
$xs->elementStart('span', 'vcard');
2009-03-30 23:26:36 +09:00
$xs->elementStart('a', $attrs);
$xs->element('span', 'fn nickname', $nickname);
$xs->elementEnd('a');
$xs->elementEnd('span');
return $xs->getString();
} else {
return $nickname;
}
}
/**
* Resolve an ambiguous profile nickname reference, checking in following order:
* - profiles that $sender subscribes to
* - profiles that subscribe to $sender
* - local user profiles
*
* WARNING: does not validate or normalize $nickname -- MUST BE PRE-VALIDATED
* OR THERE MAY BE A RISK OF SQL INJECTION ATTACKS. THIS FUNCTION DOES NOT
* ESCAPE SQL.
*
* @fixme validate input
* @fixme escape SQL
* @fixme fix or remove mystery third parameter
* @fixme is $sender a User or Profile?
*
* @param <type> $sender the user or profile in whose context we're looking
* @param string $nickname validated nickname of
* @param <type> $dt unused mystery parameter; in Notice reply-to handling a timestamp is passed.
*
* @return Profile or null
*/
function common_relative_profile($sender, $nickname, $dt=null)
{
// Will throw exception on invalid input.
$nickname = Nickname::normalize($nickname);
// Try to find profiles this profile is subscribed to that have this nickname
$recipient = new Profile();
// XXX: use a join instead of a subquery
$recipient->whereAdd('EXISTS (SELECT subscribed from subscription where subscriber = '.intval($sender->id).' and subscribed = id)', 'AND');
$recipient->whereAdd("nickname = '" . $recipient->escape($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
$recipient->whereAdd('EXISTS (SELECT subscriber from subscription where subscribed = '.intval($sender->id).' and subscriber = id)', 'AND');
$recipient->whereAdd("nickname = '" . $recipient->escape($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, $addSession=true)
{
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$r = Router::get();
$path = $r->build($action, $args, $params, $fragment);
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$ssl = common_is_sensitive($action);
if (common_config('site','fancy')) {
$url = common_path(mb_substr($path, 1), $ssl, $addSession);
} else {
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if (mb_strpos($path, '/index.php') === 0) {
$url = common_path(mb_substr($path, 1), $ssl, $addSession);
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} else {
$url = common_path('index.php'.$path, $ssl, $addSession);
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}
}
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 {
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common_log(LOG_ERR, 'Site server not configured, unable to determine site name.');
}
} else {
$proto = 'http';
if (common_config('site', 'server')) {
$serverpart = common_config('site', 'server');
} else {
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common_log(LOG_ERR, 'Site server not configured, unable to determine site name.');
}
}
if ($addSession) {
$relative = common_inject_session($relative, $serverpart);
}
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return $proto.'://'.$serverpart.'/'.$pathpart.$relative;
}
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function common_inject_session($url, $serverpart = null)
{
if (common_have_session()) {
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if (empty($serverpart)) {
$serverpart = parse_url($url, PHP_URL_HOST);
}
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$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
$sesspart = session_name() . '=' . session_id();
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$i = strpos($url, '?');
if ($i === false) { // no GET params, just append
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$url .= '?' . $sesspart;
} else {
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$url = substr($url, 0, $i + 1).$sesspart.'&'.substr($url, $i + 1);
}
}
}
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2010-01-11 17:39:02 +09:00
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 $status = array(301 => "Moved Permanently",
302 => "Found",
303 => "See Other",
307 => "Temporary Redirect");
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header('HTTP/1.1 '.$code.' '.$status[$code]);
header("Location: $url");
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$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);
2009-01-21 16:45:08 +09:00
$xo->endXML();
exit;
}
// Stick the notice on the queue
function common_enqueue_notice($notice)
{
static $localTransports = array('omb',
'ping');
$transports = array();
if (common_config('sms', 'enabled')) {
$transports[] = 'sms';
}
if (Event::hasHandler('HandleQueuedNotice')) {
$transports[] = 'plugin';
}
// We can skip these for gatewayed notices.
if ($notice->isLocal()) {
$transports = array_merge($transports, $localTransports);
}
if (Event::handle('StartEnqueueNotice', array($notice, &$transports))) {
$qm = QueueManager::get();
foreach ($transports as $transport)
{
$qm->enqueue($notice, $transport);
}
Event::handle('EndEnqueueNotice', array($notice, $transports));
}
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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('', $ssl, false);
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$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().
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*
* @param string $url
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*
* @fixme as a session-global setting, this can allow multiple forms
* to conflict and overwrite each others' returnto destinations if
* the user has multiple tabs or windows open.
2010-09-06 22:56:45 +09:00
*
* Should refactor to index with a token or otherwise only pass the
* data along its intended path.
*/
function common_set_returnto($url)
{
common_ensure_session();
$_SESSION['returnto'] = $url;
}
/**
* Fetch a return-destination URL previously recorded by
* common_set_returnto().
2010-09-06 22:56:45 +09:00
*
* @return mixed URL string or null
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*
* @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.
2010-09-06 22:56:45 +09:00
*
* Should refactor to index with a token or otherwise only pass the
* data along its intended path.
*/
function common_get_returnto()
{
common_ensure_session();
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return (array_key_exists('returnto', $_SESSION)) ? $_SESSION['returnto'] : null;
}
function common_timestamp()
{
return date('YmdHis');
}
function common_ensure_syslog()
{
static $initialized = false;
if (!$initialized) {
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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();
Major refactoring of queue handlers to support running multiple sites in one daemon. Key changes: * Initialization code moved from common.php to StatusNet class; can now switch configurations during runtime. * As a consequence, configuration files must now be idempotent... Be careful with constant, function or class definitions. * Control structure for daemons/QueueManager/QueueHandler has been refactored; the run loop is now managed by IoMaster run via scripts/queuedaemon.php IoManager subclasses are woken to handle socket input or polling, and may cover multiple sites. * Plugins can implement notice queue handlers more easily by registering a QueueHandler class; no more need to add a daemon. The new QueueDaemon runs from scripts/queuedaemon.php: * This replaces most of the old *handler.php scripts; they've been refactored to the bare handler classes. * Spawns multiple child processes to spread load; defaults to CPU count on Linux and Mac OS X systems, or override with --threads=N * When multithreaded, child processes are automatically respawned on failure. * Threads gracefully shut down and restart when passing a soft memory limit (defaults to 90% of memory_limit), limiting damage from memory leaks. * Support for UDP-based monitoring: http://www.gitorious.org/snqmon Rough control flow diagram: QueueDaemon -> IoMaster -> IoManager QueueManager [listen or poll] -> QueueHandler XmppManager [ping & keepalive] XmppConfirmManager [poll updates] Todo: * Respawning features not currently available running single-threaded. * When running single-site, configuration changes aren't picked up. * New sites or config changes affecting queue subscriptions are not yet handled without a daemon restart. * SNMP monitoring output to integrate with general tools (nagios, ganglia) * Convert XMPP confirmation message sends to use stomp queue instead of polling * Convert xmppdaemon.php to IoManager? * Convert Twitter status, friends import polling daemons to IoManager * Clean up some error reporting and failure modes * May need to adjust queue priorities for best perf in backlog/flood cases Detailed code history available in my daemon-work branch: http://www.gitorious.org/~brion/statusnet/brion-fixes/commits/daemon-work
2010-01-13 12:57:15 +09:00
$server = common_config('site', 'server');
if (php_sapi_name() == 'cli') {
XMPP queued output & initial retooling of DB queue manager to support non-Notice objects. Queue handlers for XMPP individual & firehose output now send their XML stanzas to another output queue instead of connecting directly to the chat server. This lets us have as many general processing threads as we need, while all actual XMPP input and output go through a single daemon with a single connection open. This avoids problems with multiple connected resources: * multiple windows shown in some chat clients (psi, gajim, kopete) * extra load on server * incoming message delivery forwarding issues Database changes: * queue_item drops 'notice_id' in favor of a 'frame' blob. This is based on Craig Andrews' work branch to generalize queues to take any object, but conservatively leaving out the serialization for now. Table updater (preserves any existing queued items) in db/rc3to09.sql Code changes to watch out for: * Queue handlers should now define a handle() method instead of handle_notice() * QueueDaemon and XmppDaemon now share common i/o (IoMaster) and respawning thread management (RespawningDaemon) infrastructure. * The polling XmppConfirmManager has been dropped, as the message is queued directly when saving IM settings. * Enable $config['queue']['debug_memory'] to output current memory usage at each run through the event loop to watch for memory leaks To do: * Adapt XMPP i/o to component connection mode for multi-site support. * XMPP input can also be broken out to a queue, which would allow the actual notice save etc to be handled by general queue threads. * Make sure there are no problems with simply pushing serialized Notice objects to queues. * Find a way to improve interactive performance of the database-backed queue handler; polling is pretty painful to XMPP. * Possibly redo the way QueueHandlers are injected into a QueueManager. The grouping used to split out the XMPP output queue is a bit awkward.
2010-01-22 09:42:50 +09:00
$script = basename($_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'];
Major refactoring of queue handlers to support running multiple sites in one daemon. Key changes: * Initialization code moved from common.php to StatusNet class; can now switch configurations during runtime. * As a consequence, configuration files must now be idempotent... Be careful with constant, function or class definitions. * Control structure for daemons/QueueManager/QueueHandler has been refactored; the run loop is now managed by IoMaster run via scripts/queuedaemon.php IoManager subclasses are woken to handle socket input or polling, and may cover multiple sites. * Plugins can implement notice queue handlers more easily by registering a QueueHandler class; no more need to add a daemon. The new QueueDaemon runs from scripts/queuedaemon.php: * This replaces most of the old *handler.php scripts; they've been refactored to the bare handler classes. * Spawns multiple child processes to spread load; defaults to CPU count on Linux and Mac OS X systems, or override with --threads=N * When multithreaded, child processes are automatically respawned on failure. * Threads gracefully shut down and restart when passing a soft memory limit (defaults to 90% of memory_limit), limiting damage from memory leaks. * Support for UDP-based monitoring: http://www.gitorious.org/snqmon Rough control flow diagram: QueueDaemon -> IoMaster -> IoManager QueueManager [listen or poll] -> QueueHandler XmppManager [ping & keepalive] XmppConfirmManager [poll updates] Todo: * Respawning features not currently available running single-threaded. * When running single-site, configuration changes aren't picked up. * New sites or config changes affecting queue subscriptions are not yet handled without a daemon restart. * SNMP monitoring output to integrate with general tools (nagios, ganglia) * Convert XMPP confirmation message sends to use stomp queue instead of polling * Convert xmppdaemon.php to IoManager? * Convert Twitter status, friends import polling daemons to IoManager * Clean up some error reporting and failure modes * May need to adjust queue priorities for best perf in backlog/flood cases Detailed code history available in my daemon-work branch: http://www.gitorious.org/~brion/statusnet/brion-fixes/commits/daemon-work
2010-01-13 12:57:15 +09:00
return "$server:$pid.$req_id $method $url";
}
}
function common_log($priority, $msg, $filename=null)
{
if(Event::handle('StartLog', array(&$priority, &$msg, &$filename))){
$msg = (empty($filename)) ? $msg : basename($filename) . ' - ' . $msg;
$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($object)) {
return "null";
}
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if (!($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!
Give users more control over URL shortening Users and administrators can set how long an URL can be before it's shortened, and how long a notice can be before all its URLs are shortened. They can also turn off shortening altogether. Squashed commit of the following: commit d136b390115829c4391b3666bb1967f190a0de35 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:39:00 2010 -0400 use site and user settings to determine when to shorten URLs commit 1e1c851ff3cb2da5e0dc3a0b06239a9d9c618488 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:38:40 2010 -0400 add a method to force shortening URLs commit 4d29ca0b91201f6df42940297ed5b64b070efe49 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:41 2010 -0400 static method for getting best URL shortening service commit a9c6a3bace0af44bcf38d1c790425a7be9c72147 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:11 2010 -0400 allow 0 in numeric entries in othersettings commit 767ff2f7ecfd7e76e8418fc79d45e61898f09382 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:36:46 2010 -0400 allow 0 or blank string in inputs commit 1e21af42a685f600f4a53f49a194013e78b12f20 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:01:11 2010 -0400 add more URL-shortening options to othersettings commit 869a6be0f5779aff69018d02f9ac0273946040d9 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:22:51 2010 -0400 move url shortener superclass to lib from plugin commit 9c0c9863d532942b99184f14e923fc3c050f8177 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:20:28 2010 -0400 documentation and whitespace on UrlShortenerPlugin commit 7a1dd5798f0fcf2c03d1257a18ddcb9008879de0 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:05:46 2010 -0400 add defaults for URL shortening commit d259c37ad231ca0010c60e5cfd397bb1732874a4 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 13:40:10 2010 -0400 Add User_urlshortener_prefs Add a table for URL shortener prefs, a corresponding class, and the correct mumbo-jumbo in statusnet.ini to make everything work.
2010-04-26 15:40:36 +09:00
*
* @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) {
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case E_ERROR:
case E_COMPILE_ERROR:
case E_CORE_ERROR:
case E_USER_ERROR:
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case E_PARSE:
case E_RECOVERABLE_ERROR:
common_log(LOG_ERR, "[$errno] $errstr ($errfile:$errline) [ABORT]");
die();
break;
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case E_WARNING:
case E_COMPILE_WARNING:
case E_CORE_WARNING:
case E_USER_WARNING:
common_log(LOG_WARNING, "[$errno] $errstr ($errfile:$errline)");
break;
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case E_NOTICE:
case E_USER_NOTICE:
common_log(LOG_NOTICE, "[$errno] $errstr ($errfile:$errline)");
break;
2009-06-29 08:24:14 +09:00
case E_STRICT:
case E_DEPRECATED:
case E_USER_DEPRECATED:
// XXX: config variable to log this stuff, too
break;
default:
common_log(LOG_ERR, "[$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 $_SESSION['token'];
}
function common_license_terms($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.
*
Give users more control over URL shortening Users and administrators can set how long an URL can be before it's shortened, and how long a notice can be before all its URLs are shortened. They can also turn off shortening altogether. Squashed commit of the following: commit d136b390115829c4391b3666bb1967f190a0de35 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:39:00 2010 -0400 use site and user settings to determine when to shorten URLs commit 1e1c851ff3cb2da5e0dc3a0b06239a9d9c618488 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:38:40 2010 -0400 add a method to force shortening URLs commit 4d29ca0b91201f6df42940297ed5b64b070efe49 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:41 2010 -0400 static method for getting best URL shortening service commit a9c6a3bace0af44bcf38d1c790425a7be9c72147 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:11 2010 -0400 allow 0 in numeric entries in othersettings commit 767ff2f7ecfd7e76e8418fc79d45e61898f09382 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:36:46 2010 -0400 allow 0 or blank string in inputs commit 1e21af42a685f600f4a53f49a194013e78b12f20 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:01:11 2010 -0400 add more URL-shortening options to othersettings commit 869a6be0f5779aff69018d02f9ac0273946040d9 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:22:51 2010 -0400 move url shortener superclass to lib from plugin commit 9c0c9863d532942b99184f14e923fc3c050f8177 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:20:28 2010 -0400 documentation and whitespace on UrlShortenerPlugin commit 7a1dd5798f0fcf2c03d1257a18ddcb9008879de0 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:05:46 2010 -0400 add defaults for URL shortening commit d259c37ad231ca0010c60e5cfd397bb1732874a4 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 13:40:10 2010 -0400 Add User_urlshortener_prefs Add a table for URL shortener prefs, a corresponding class, and the correct mumbo-jumbo in statusnet.ini to make everything work.
2010-04-26 15:40:36 +09:00
* @param string $long_url original URL
* @param User $user to specify a particular user's options
Give users more control over URL shortening Users and administrators can set how long an URL can be before it's shortened, and how long a notice can be before all its URLs are shortened. They can also turn off shortening altogether. Squashed commit of the following: commit d136b390115829c4391b3666bb1967f190a0de35 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:39:00 2010 -0400 use site and user settings to determine when to shorten URLs commit 1e1c851ff3cb2da5e0dc3a0b06239a9d9c618488 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:38:40 2010 -0400 add a method to force shortening URLs commit 4d29ca0b91201f6df42940297ed5b64b070efe49 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:41 2010 -0400 static method for getting best URL shortening service commit a9c6a3bace0af44bcf38d1c790425a7be9c72147 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:11 2010 -0400 allow 0 in numeric entries in othersettings commit 767ff2f7ecfd7e76e8418fc79d45e61898f09382 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:36:46 2010 -0400 allow 0 or blank string in inputs commit 1e21af42a685f600f4a53f49a194013e78b12f20 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:01:11 2010 -0400 add more URL-shortening options to othersettings commit 869a6be0f5779aff69018d02f9ac0273946040d9 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:22:51 2010 -0400 move url shortener superclass to lib from plugin commit 9c0c9863d532942b99184f14e923fc3c050f8177 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:20:28 2010 -0400 documentation and whitespace on UrlShortenerPlugin commit 7a1dd5798f0fcf2c03d1257a18ddcb9008879de0 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:05:46 2010 -0400 add defaults for URL shortening commit d259c37ad231ca0010c60e5cfd397bb1732874a4 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 13:40:10 2010 -0400 Add User_urlshortener_prefs Add a table for URL shortener prefs, a corresponding class, and the correct mumbo-jumbo in statusnet.ini to make everything work.
2010-04-26 15:40:36 +09:00
* @param boolean $force Force shortening (used when notice is too long)
* @return string may return the original URL if shortening failed
*
* @fixme provide a way to specify a particular shortener
*/
function common_shorten_url($long_url, User $user=null, $force = false)
{
Give users more control over URL shortening Users and administrators can set how long an URL can be before it's shortened, and how long a notice can be before all its URLs are shortened. They can also turn off shortening altogether. Squashed commit of the following: commit d136b390115829c4391b3666bb1967f190a0de35 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:39:00 2010 -0400 use site and user settings to determine when to shorten URLs commit 1e1c851ff3cb2da5e0dc3a0b06239a9d9c618488 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:38:40 2010 -0400 add a method to force shortening URLs commit 4d29ca0b91201f6df42940297ed5b64b070efe49 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:41 2010 -0400 static method for getting best URL shortening service commit a9c6a3bace0af44bcf38d1c790425a7be9c72147 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:11 2010 -0400 allow 0 in numeric entries in othersettings commit 767ff2f7ecfd7e76e8418fc79d45e61898f09382 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:36:46 2010 -0400 allow 0 or blank string in inputs commit 1e21af42a685f600f4a53f49a194013e78b12f20 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:01:11 2010 -0400 add more URL-shortening options to othersettings commit 869a6be0f5779aff69018d02f9ac0273946040d9 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:22:51 2010 -0400 move url shortener superclass to lib from plugin commit 9c0c9863d532942b99184f14e923fc3c050f8177 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:20:28 2010 -0400 documentation and whitespace on UrlShortenerPlugin commit 7a1dd5798f0fcf2c03d1257a18ddcb9008879de0 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:05:46 2010 -0400 add defaults for URL shortening commit d259c37ad231ca0010c60e5cfd397bb1732874a4 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 13:40:10 2010 -0400 Add User_urlshortener_prefs Add a table for URL shortener prefs, a corresponding class, and the correct mumbo-jumbo in statusnet.ini to make everything work.
2010-04-26 15:40:36 +09:00
common_debug("Shortening URL '$long_url' (force = $force)");
$long_url = trim($long_url);
Give users more control over URL shortening Users and administrators can set how long an URL can be before it's shortened, and how long a notice can be before all its URLs are shortened. They can also turn off shortening altogether. Squashed commit of the following: commit d136b390115829c4391b3666bb1967f190a0de35 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:39:00 2010 -0400 use site and user settings to determine when to shorten URLs commit 1e1c851ff3cb2da5e0dc3a0b06239a9d9c618488 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:38:40 2010 -0400 add a method to force shortening URLs commit 4d29ca0b91201f6df42940297ed5b64b070efe49 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:41 2010 -0400 static method for getting best URL shortening service commit a9c6a3bace0af44bcf38d1c790425a7be9c72147 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:11 2010 -0400 allow 0 in numeric entries in othersettings commit 767ff2f7ecfd7e76e8418fc79d45e61898f09382 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:36:46 2010 -0400 allow 0 or blank string in inputs commit 1e21af42a685f600f4a53f49a194013e78b12f20 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:01:11 2010 -0400 add more URL-shortening options to othersettings commit 869a6be0f5779aff69018d02f9ac0273946040d9 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:22:51 2010 -0400 move url shortener superclass to lib from plugin commit 9c0c9863d532942b99184f14e923fc3c050f8177 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:20:28 2010 -0400 documentation and whitespace on UrlShortenerPlugin commit 7a1dd5798f0fcf2c03d1257a18ddcb9008879de0 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:05:46 2010 -0400 add defaults for URL shortening commit d259c37ad231ca0010c60e5cfd397bb1732874a4 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 13:40:10 2010 -0400 Add User_urlshortener_prefs Add a table for URL shortener prefs, a corresponding class, and the correct mumbo-jumbo in statusnet.ini to make everything work.
2010-04-26 15:40:36 +09:00
$user = common_current_user();
Give users more control over URL shortening Users and administrators can set how long an URL can be before it's shortened, and how long a notice can be before all its URLs are shortened. They can also turn off shortening altogether. Squashed commit of the following: commit d136b390115829c4391b3666bb1967f190a0de35 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:39:00 2010 -0400 use site and user settings to determine when to shorten URLs commit 1e1c851ff3cb2da5e0dc3a0b06239a9d9c618488 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:38:40 2010 -0400 add a method to force shortening URLs commit 4d29ca0b91201f6df42940297ed5b64b070efe49 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:41 2010 -0400 static method for getting best URL shortening service commit a9c6a3bace0af44bcf38d1c790425a7be9c72147 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:11 2010 -0400 allow 0 in numeric entries in othersettings commit 767ff2f7ecfd7e76e8418fc79d45e61898f09382 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:36:46 2010 -0400 allow 0 or blank string in inputs commit 1e21af42a685f600f4a53f49a194013e78b12f20 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:01:11 2010 -0400 add more URL-shortening options to othersettings commit 869a6be0f5779aff69018d02f9ac0273946040d9 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:22:51 2010 -0400 move url shortener superclass to lib from plugin commit 9c0c9863d532942b99184f14e923fc3c050f8177 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:20:28 2010 -0400 documentation and whitespace on UrlShortenerPlugin commit 7a1dd5798f0fcf2c03d1257a18ddcb9008879de0 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:05:46 2010 -0400 add defaults for URL shortening commit d259c37ad231ca0010c60e5cfd397bb1732874a4 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 13:40:10 2010 -0400 Add User_urlshortener_prefs Add a table for URL shortener prefs, a corresponding class, and the correct mumbo-jumbo in statusnet.ini to make everything work.
2010-04-26 15:40:36 +09:00
$maxUrlLength = User_urlshortener_prefs::maxUrlLength($user);
common_debug("maxUrlLength = $maxUrlLength");
// $force forces shortening even if it's not strictly needed
if (mb_strlen($long_url) < $maxUrlLength && !$force) {
common_debug("Skipped shortening URL.");
return $long_url;
}
Give users more control over URL shortening Users and administrators can set how long an URL can be before it's shortened, and how long a notice can be before all its URLs are shortened. They can also turn off shortening altogether. Squashed commit of the following: commit d136b390115829c4391b3666bb1967f190a0de35 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:39:00 2010 -0400 use site and user settings to determine when to shorten URLs commit 1e1c851ff3cb2da5e0dc3a0b06239a9d9c618488 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:38:40 2010 -0400 add a method to force shortening URLs commit 4d29ca0b91201f6df42940297ed5b64b070efe49 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:41 2010 -0400 static method for getting best URL shortening service commit a9c6a3bace0af44bcf38d1c790425a7be9c72147 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:11 2010 -0400 allow 0 in numeric entries in othersettings commit 767ff2f7ecfd7e76e8418fc79d45e61898f09382 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:36:46 2010 -0400 allow 0 or blank string in inputs commit 1e21af42a685f600f4a53f49a194013e78b12f20 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:01:11 2010 -0400 add more URL-shortening options to othersettings commit 869a6be0f5779aff69018d02f9ac0273946040d9 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:22:51 2010 -0400 move url shortener superclass to lib from plugin commit 9c0c9863d532942b99184f14e923fc3c050f8177 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:20:28 2010 -0400 documentation and whitespace on UrlShortenerPlugin commit 7a1dd5798f0fcf2c03d1257a18ddcb9008879de0 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:05:46 2010 -0400 add defaults for URL shortening commit d259c37ad231ca0010c60e5cfd397bb1732874a4 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 13:40:10 2010 -0400 Add User_urlshortener_prefs Add a table for URL shortener prefs, a corresponding class, and the correct mumbo-jumbo in statusnet.ini to make everything work.
2010-04-26 15:40:36 +09:00
$shortenerName = User_urlshortener_prefs::urlShorteningService($user);
common_debug("Shortener name = '$shortenerName'");
if (Event::handle('StartShortenUrl', array($long_url, $shortenerName, &$shortenedUrl))) {
//URL wasn't shortened, so return the long url
return $long_url;
Give users more control over URL shortening Users and administrators can set how long an URL can be before it's shortened, and how long a notice can be before all its URLs are shortened. They can also turn off shortening altogether. Squashed commit of the following: commit d136b390115829c4391b3666bb1967f190a0de35 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:39:00 2010 -0400 use site and user settings to determine when to shorten URLs commit 1e1c851ff3cb2da5e0dc3a0b06239a9d9c618488 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:38:40 2010 -0400 add a method to force shortening URLs commit 4d29ca0b91201f6df42940297ed5b64b070efe49 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:41 2010 -0400 static method for getting best URL shortening service commit a9c6a3bace0af44bcf38d1c790425a7be9c72147 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:37:11 2010 -0400 allow 0 in numeric entries in othersettings commit 767ff2f7ecfd7e76e8418fc79d45e61898f09382 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:36:46 2010 -0400 allow 0 or blank string in inputs commit 1e21af42a685f600f4a53f49a194013e78b12f20 Author: Evan Prodromou <evan@status.net> Date: Mon Apr 26 02:01:11 2010 -0400 add more URL-shortening options to othersettings commit 869a6be0f5779aff69018d02f9ac0273946040d9 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:22:51 2010 -0400 move url shortener superclass to lib from plugin commit 9c0c9863d532942b99184f14e923fc3c050f8177 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:20:28 2010 -0400 documentation and whitespace on UrlShortenerPlugin commit 7a1dd5798f0fcf2c03d1257a18ddcb9008879de0 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 14:05:46 2010 -0400 add defaults for URL shortening commit d259c37ad231ca0010c60e5cfd397bb1732874a4 Author: Evan Prodromou <evan@status.net> Date: Sat Apr 24 13:40:10 2010 -0400 Add User_urlshortener_prefs Add a table for URL shortener prefs, a corresponding class, and the correct mumbo-jumbo in statusnet.ini to make everything work.
2010-04-26 15:40:36 +09:00
} else {
//URL was shortened, so return the result
return trim($shortenedUrl);
}
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}
/**
* @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 $_SERVER;
* use function to get exact request headers from Apache if possible.
*/
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function common_client_ip()
{
if (!isset($_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', $_SERVER)) {
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$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', $_SERVER)) {
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$ip = $_SERVER['HTTP_CLIENT_IP'];
} else {
$ip = $_SERVER['REMOTE_ADDR'];
}
}
return array($proxy, $ip);
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}
function common_url_to_nickname($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);
}