gnu-social/lib/common.php

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<?php
/*
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* 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/>.
*/
if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }
//exit with 200 response, if this is checking fancy from the installer
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if (isset($_REQUEST['p']) && $_REQUEST['p'] == 'check-fancy') { exit; }
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define('STATUSNET_VERSION', '0.9.5');
define('LACONICA_VERSION', STATUSNET_VERSION); // compatibility
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define('STATUSNET_CODENAME', 'What\'s The Frequency, Kenneth?');
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('FOREIGN_NOTICE_SEND', 1);
define('FOREIGN_NOTICE_RECV', 2);
define('FOREIGN_NOTICE_SEND_REPLY', 4);
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);
define('NOTICE_INBOX_SOURCE_GATEWAY', -1);
# 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');
require_once('DB/DataObject.php');
require_once('DB/DataObject/Cast.php'); # for dates
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, $attrs = null)
{
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
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return StatusNet::addPlugin($name, $attrs);
}
function _have_config()
{
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
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return StatusNet::haveConfig();
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}
function __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 ($cls == 'OAuthRequest') {
require_once('OAuth.php');
} else {
Event::handle('Autoload', array(&$cls));
}
}
// XXX: how many of these could be auto-loaded on use?
// XXX: note that these files should not use config options
// at compile time since DB config options are not yet loaded.
require_once 'Validate.php';
require_once 'markdown.php';
// XXX: other formats here
define('NICKNAME_FMT', VALIDATE_NUM.VALIDATE_ALPHA_LOWER);
require_once INSTALLDIR.'/lib/util.php';
require_once INSTALLDIR.'/lib/action.php';
require_once INSTALLDIR.'/lib/mail.php';
require_once INSTALLDIR.'/lib/subs.php';
require_once INSTALLDIR.'/lib/clientexception.php';
require_once INSTALLDIR.'/lib/serverexception.php';
//set PEAR error handling to use regular PHP exceptions
function PEAR_ErrorToPEAR_Exception($err)
{
//DB_DataObject throws error when an empty set would be returned
//That behavior is weird, and not how the rest of StatusNet works.
//So just ignore those errors.
if ($err->getCode() == DB_DATAOBJECT_ERROR_NODATA) {
return;
}
if ($err->getCode()) {
throw new PEAR_Exception($err->getMessage(), $err->getCode());
}
throw new PEAR_Exception($err->getMessage());
}
PEAR::setErrorHandling(PEAR_ERROR_CALLBACK, 'PEAR_ErrorToPEAR_Exception');
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
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try {
StatusNet::init(@$server, @$path, @$conffile);
} catch (NoConfigException $e) {
// XXX: Throw a conniption if database not installed
// XXX: Find a way to use htmlwriter for this instead of handcoded markup
echo '<p>'. _('No configuration file found. ') .'</p>';
echo '<p>'. _('I looked for configuration files in the following places: ') .'<br/> ';
echo implode($e->configFiles, '<br/>');
echo '<p>'. _('You may wish to run the installer to fix this.') .'</p>';
echo '<a href="install.php">'. _('Go to the installer.') .'</a>';
exit;
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}