gnu-social/lib/framework.php

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<?php
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// This file is part of GNU social - https://www.gnu.org/software/social
//
// GNU social 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.
//
// GNU social 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 GNU social. If not, see <http://www.gnu.org/licenses/>.
/**
* Bootstrapping code to initialize the application.
*
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* @package GNUsocial
* @author Evan Prodromou
* @author Shashi Gowda
* @author Neil E. Hodges
* @author Brion Vibber
* @author Mikael Nordfeldth <mmn@hethane.se>
* @copyright 2010-2019 Free Software Foundation, Inc http://www.fsf.org
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
*/
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defined('GNUSOCIAL') || die();
define('GNUSOCIAL_ENGINE', 'GNU social');
define('GNUSOCIAL_ENGINE_URL', 'https://www.gnu.org/software/social/');
define('GNUSOCIAL_BASE_VERSION', '1.20.3');
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define('GNUSOCIAL_LIFECYCLE', 'release'); // 'dev', 'alpha[0-9]+', 'beta[0-9]+', 'rc[0-9]+', 'release'
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define('GNUSOCIAL_VERSION', GNUSOCIAL_BASE_VERSION . '-' . GNUSOCIAL_LIFECYCLE);
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define('GNUSOCIAL_CODENAME', 'The Invicta Crusade');
define('AVATAR_PROFILE_SIZE', 96);
define('AVATAR_STREAM_SIZE', 48);
define('AVATAR_MINI_SIZE', 24);
define('NOTICES_PER_PAGE', 20);
define('PROFILES_PER_PAGE', 20);
define('MESSAGES_PER_PAGE', 20);
define('GROUPS_PER_PAGE', 20);
define('APPS_PER_PAGE', 20);
define('PEOPLETAGS_PER_PAGE', 20);
define('GROUPS_PER_MINILIST', 8);
define('PROFILES_PER_MINILIST', 8);
define('FOREIGN_NOTICE_SEND', 1);
define('FOREIGN_NOTICE_RECV', 2);
define('FOREIGN_NOTICE_SEND_REPLY', 4);
define('FOREIGN_NOTICE_SEND_REPEAT', 8);
define('FOREIGN_FRIEND_SEND', 1);
define('FOREIGN_FRIEND_RECV', 2);
define('NOTICE_INBOX_SOURCE_SUB', 1);
define('NOTICE_INBOX_SOURCE_GROUP', 2);
define('NOTICE_INBOX_SOURCE_REPLY', 3);
define('NOTICE_INBOX_SOURCE_FORWARD', 4);
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define('NOTICE_INBOX_SOURCE_PROFILE_TAG', 5);
define('NOTICE_INBOX_SOURCE_GATEWAY', -1);
/**
* StatusNet had this string as valid path characters: '\pN\pL\,\!\(\)\.\:\-\_\+\/\=\&\;\%\~\*\$\'\@'
* Some of those characters can be troublesome when auto-linking plain text. Such as "http://some.com/)"
* URL encoding should be used whenever a weird character is used, the following strings are not definitive.
*/
define('URL_REGEX_VALID_PATH_CHARS', '\pN\pL\,\!\.\:\-\_\+\/\@\=\;\%\~\*');
define('URL_REGEX_VALID_QSTRING_CHARS', URL_REGEX_VALID_PATH_CHARS . '\&');
define('URL_REGEX_VALID_FRAGMENT_CHARS', URL_REGEX_VALID_QSTRING_CHARS . '\?\#');
define('URL_REGEX_EXCLUDED_END_CHARS', '\?\.\,\!\#\:\''); // don't include these if they are directly after a URL
define('URL_REGEX_DOMAIN_NAME', '(?:(?!-)[A-Za-z0-9\-]{1,63}(?<!-)\.)+[A-Za-z]{2,10}');
// append our extlib dir as the last-resort place to find libs
set_include_path(get_include_path() . PATH_SEPARATOR . INSTALLDIR . '/extlib/');
// To protect against upstream libraries which haven't updated
// for PHP 5.3 where dl() function may not be present...
if (!function_exists('dl')) {
// function_exists() returns false for things in disable_functions,
// but they still exist and we'll die if we try to redefine them.
//
// Fortunately trying to call the disabled one will only trigger
// a warning, not a fatal, so it's safe to leave it for our case.
// Callers will be suppressing warnings anyway.
$disabled = array_filter(array_map('trim', explode(',', ini_get('disable_functions'))));
if (!in_array('dl', $disabled)) {
function dl($library) {
return false;
}
}
}
// global configuration object
require_once 'PEAR.php';
require_once 'PEAR/Exception.php';
global $_PEAR;
$_PEAR = new PEAR;
$_PEAR->setErrorHandling(PEAR_ERROR_CALLBACK, 'PEAR_ErrorToPEAR_Exception');
require_once 'DB.php';
require_once 'DB/DataObject.php';
require_once 'DB/DataObject/Cast.php'; # for dates
global $_DB;
$_DB = new DB;
require_once(INSTALLDIR.'/lib/language.php');
// This gets included before the config file, so that admin code and plugins
// can use it
require_once(INSTALLDIR.'/lib/event.php');
require_once(INSTALLDIR.'/lib/plugin.php');
function addPlugin($name, array $attrs=array())
{
return GNUsocial::addPlugin($name, $attrs);
}
function _have_config()
{
return GNUsocial::haveConfig();
}
function GNUsocial_class_autoload($cls)
{
if (file_exists(INSTALLDIR.'/classes/' . $cls . '.php')) {
require_once(INSTALLDIR.'/classes/' . $cls . '.php');
} else if (file_exists(INSTALLDIR.'/lib/' . strtolower($cls) . '.php')) {
require_once(INSTALLDIR.'/lib/' . strtolower($cls) . '.php');
} else if (mb_substr($cls, -6) == 'Action' &&
file_exists(INSTALLDIR.'/actions/' . strtolower(mb_substr($cls, 0, -6)) . '.php')) {
require_once(INSTALLDIR.'/actions/' . strtolower(mb_substr($cls, 0, -6)) . '.php');
} else if ($cls === 'OAuthRequest' || $cls === 'OAuthException') {
require_once('OAuth.php');
} else {
Event::handle('Autoload', array(&$cls));
}
}
// Autoload function queue, starting with our own discovery method
spl_autoload_register('GNUsocial_class_autoload');
/**
* Extlibs with namespaces (or directly in extlib/)
* This covers libraries such as: Validate and \Michelf\Markdown
*
* The namespaced based structure is called "PSR-0 autoloading standard":
* \<Vendor Name>\(<Namespace>\)*<Class Name>
* and is available here: http://www.php-fig.org/psr/psr-0/
*/
spl_autoload_register(function($class){
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$class_base = preg_replace('{\\\\|_(?!.*\\\\)}', DIRECTORY_SEPARATOR, ltrim($class, '\\'));
$file = INSTALLDIR."/extlib/{$class_base}.php";
if (file_exists($file)) {
require_once $file;
return;
}
# Try if the system has this external library
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$file = "/usr/share/php/{$class_base}.php";
if (file_exists($file)) {
require_once $file;
return;
}
});
require_once INSTALLDIR.'/lib/util.php';
require_once INSTALLDIR.'/lib/action.php';
require_once INSTALLDIR.'/lib/mail.php';
//set PEAR error handling to use regular PHP exceptions
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function PEAR_ErrorToPEAR_Exception(PEAR_Error $err)
{
//DB_DataObject throws error when an empty set would be returned
//That behavior is weird, and not how the rest of StatusNet works.
//So just ignore those errors.
if ($err->getCode() == DB_DATAOBJECT_ERROR_NODATA) {
return;
}
$msg = $err->getMessage();
$userInfo = $err->getUserInfo();
// Log this; push the message up as an exception
common_log(LOG_ERR, "PEAR Error: $msg ($userInfo)");
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// HACK: queue handlers get kicked by the long-query killer, and
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// keep the same broken connection. We die here to get a new
// process started.
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if (php_sapi_name() == 'cli' && preg_match('/nativecode=2006/', $userInfo)) {
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common_log(LOG_ERR, "Lost DB connection; dying.");
exit(100);
}
if ($err->getCode()) {
throw new PEAR_Exception($err->getMessage(), $err->getCode());
}
throw new PEAR_Exception($err->getMessage());
}