379 lines
11 KiB
PHP
379 lines
11 KiB
PHP
<?php
|
|
/**
|
|
* StatusNet - the distributed open-source microblogging tool
|
|
* Copyright (C) 2009-2010 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);
|
|
}
|
|
|
|
global $config, $_server, $_path;
|
|
|
|
/**
|
|
* Global configuration setup and management.
|
|
*/
|
|
class StatusNet
|
|
{
|
|
protected static $have_config;
|
|
protected static $is_api;
|
|
protected static $plugins = array();
|
|
|
|
/**
|
|
* Configure and instantiate a plugin into the current configuration.
|
|
* Class definitions will be loaded from standard paths if necessary.
|
|
* Note that initialization events won't be fired until later.
|
|
*
|
|
* @param string $name class name & plugin file/subdir name
|
|
* @param array $attrs key/value pairs of public attributes to set on plugin instance
|
|
*
|
|
* @throws ServerException if plugin can't be found
|
|
*/
|
|
public static function addPlugin($name, $attrs = null)
|
|
{
|
|
$name = ucfirst($name);
|
|
$pluginclass = "{$name}Plugin";
|
|
|
|
if (!class_exists($pluginclass)) {
|
|
|
|
$files = array("local/plugins/{$pluginclass}.php",
|
|
"local/plugins/{$name}/{$pluginclass}.php",
|
|
"local/{$pluginclass}.php",
|
|
"local/{$name}/{$pluginclass}.php",
|
|
"plugins/{$pluginclass}.php",
|
|
"plugins/{$name}/{$pluginclass}.php");
|
|
|
|
foreach ($files as $file) {
|
|
$fullpath = INSTALLDIR.'/'.$file;
|
|
if (@file_exists($fullpath)) {
|
|
include_once($fullpath);
|
|
break;
|
|
}
|
|
}
|
|
if (!class_exists($pluginclass)) {
|
|
throw new ServerException("Plugin $name not found.", 500);
|
|
}
|
|
}
|
|
|
|
$inst = new $pluginclass();
|
|
if (!empty($attrs)) {
|
|
foreach ($attrs as $aname => $avalue) {
|
|
$inst->$aname = $avalue;
|
|
}
|
|
}
|
|
|
|
// Record activated plugins for later display/config dump
|
|
self::$plugins[] = array($name, $attrs);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Get a list of activated plugins in this process.
|
|
* @return array of (string $name, array $args) pairs
|
|
*/
|
|
public static function getActivePlugins()
|
|
{
|
|
return self::$plugins;
|
|
}
|
|
|
|
/**
|
|
* Initialize, or re-initialize, StatusNet global configuration
|
|
* and plugins.
|
|
*
|
|
* If switching site configurations during script execution, be
|
|
* careful when working with leftover objects -- global settings
|
|
* affect many things and they may not behave as you expected.
|
|
*
|
|
* @param $server optional web server hostname for picking config
|
|
* @param $path optional URL path for picking config
|
|
* @param $conffile optional configuration file path
|
|
*
|
|
* @throws NoConfigException if config file can't be found
|
|
*/
|
|
public static function init($server=null, $path=null, $conffile=null)
|
|
{
|
|
StatusNet::initDefaults($server, $path);
|
|
StatusNet::loadConfigFile($conffile);
|
|
|
|
// Load settings from database; note we need autoload for this
|
|
Config::loadSettings();
|
|
|
|
self::initPlugins();
|
|
}
|
|
|
|
/**
|
|
* Get identifier of the currently active site configuration
|
|
* @return string
|
|
*/
|
|
public static function currentSite()
|
|
{
|
|
return common_config('site', 'nickname');
|
|
}
|
|
|
|
/**
|
|
* Change site configuration to site specified by nickname,
|
|
* if set up via Status_network. If not, sites other than
|
|
* the current will fail horribly.
|
|
*
|
|
* May throw exception or trigger a fatal error if the given
|
|
* site is missing or configured incorrectly.
|
|
*
|
|
* @param string $nickname
|
|
*/
|
|
public static function switchSite($nickname)
|
|
{
|
|
if ($nickname == StatusNet::currentSite()) {
|
|
return true;
|
|
}
|
|
|
|
$sn = Status_network::staticGet('nickname', $nickname);
|
|
if (empty($sn)) {
|
|
return false;
|
|
throw new Exception("No such site nickname '$nickname'");
|
|
}
|
|
|
|
$server = $sn->getServerName();
|
|
StatusNet::init($server);
|
|
}
|
|
|
|
/**
|
|
* Pull all local sites from status_network table.
|
|
*
|
|
* Behavior undefined if site is not configured via Status_network.
|
|
*
|
|
* @return array of nicknames
|
|
*/
|
|
public static function findAllSites()
|
|
{
|
|
$sites = array();
|
|
$sn = new Status_network();
|
|
$sn->find();
|
|
while ($sn->fetch()) {
|
|
$sites[] = $sn->nickname;
|
|
}
|
|
return $sites;
|
|
}
|
|
|
|
|
|
/**
|
|
* Fire initialization events for all instantiated plugins.
|
|
*/
|
|
protected static function initPlugins()
|
|
{
|
|
// Load default plugins
|
|
foreach (common_config('plugins', 'default') as $name => $params) {
|
|
if (is_null($params)) {
|
|
addPlugin($name);
|
|
} else if (is_array($params)) {
|
|
if (count($params) == 0) {
|
|
addPlugin($name);
|
|
} else {
|
|
$keys = array_keys($params);
|
|
if (is_string($keys[0])) {
|
|
addPlugin($name, $params);
|
|
} else {
|
|
foreach ($params as $paramset) {
|
|
addPlugin($name, $paramset);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// XXX: if plugins should check the schema at runtime, do that here.
|
|
if (common_config('db', 'schemacheck') == 'runtime') {
|
|
Event::handle('CheckSchema');
|
|
}
|
|
|
|
// Give plugins a chance to initialize in a fully-prepared environment
|
|
Event::handle('InitializePlugin');
|
|
}
|
|
|
|
/**
|
|
* Quick-check if configuration has been established.
|
|
* Useful for functions which may get used partway through
|
|
* initialization to back off from fancier things.
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function haveConfig()
|
|
{
|
|
return self::$have_config;
|
|
}
|
|
|
|
public function isApi()
|
|
{
|
|
return self::$is_api;
|
|
}
|
|
|
|
public function setApi($mode)
|
|
{
|
|
self::$is_api = $mode;
|
|
}
|
|
|
|
/**
|
|
* Build default configuration array
|
|
* @return array
|
|
*/
|
|
protected static function defaultConfig()
|
|
{
|
|
global $_server, $_path;
|
|
require(INSTALLDIR.'/lib/default.php');
|
|
return $default;
|
|
}
|
|
|
|
/**
|
|
* Establish default configuration based on given or default server and path
|
|
* Sets global $_server, $_path, and $config
|
|
*/
|
|
protected static function initDefaults($server, $path)
|
|
{
|
|
global $_server, $_path, $config;
|
|
|
|
Event::clearHandlers();
|
|
self::$plugins = array();
|
|
|
|
// try to figure out where we are. $server and $path
|
|
// can be set by including module, else we guess based
|
|
// on HTTP info.
|
|
|
|
if (isset($server)) {
|
|
$_server = $server;
|
|
} else {
|
|
$_server = array_key_exists('SERVER_NAME', $_SERVER) ?
|
|
strtolower($_SERVER['SERVER_NAME']) :
|
|
null;
|
|
}
|
|
|
|
if (isset($path)) {
|
|
$_path = $path;
|
|
} else {
|
|
$_path = (array_key_exists('SERVER_NAME', $_SERVER) && array_key_exists('SCRIPT_NAME', $_SERVER)) ?
|
|
self::_sn_to_path($_SERVER['SCRIPT_NAME']) :
|
|
null;
|
|
}
|
|
|
|
// Set config values initially to default values
|
|
$default = self::defaultConfig();
|
|
$config = $default;
|
|
|
|
// default configuration, overwritten in config.php
|
|
// Keep DB_DataObject's db config synced to ours...
|
|
|
|
$config['db'] = &PEAR::getStaticProperty('DB_DataObject','options');
|
|
|
|
$config['db'] = $default['db'];
|
|
|
|
// Backward compatibility
|
|
|
|
$config['site']['design'] =& $config['design'];
|
|
|
|
if (function_exists('date_default_timezone_set')) {
|
|
/* Work internally in UTC */
|
|
date_default_timezone_set('UTC');
|
|
}
|
|
}
|
|
|
|
protected function _sn_to_path($sn)
|
|
{
|
|
$past_root = substr($sn, 1);
|
|
$last_slash = strrpos($past_root, '/');
|
|
if ($last_slash > 0) {
|
|
$p = substr($past_root, 0, $last_slash);
|
|
} else {
|
|
$p = '';
|
|
}
|
|
return $p;
|
|
}
|
|
|
|
/**
|
|
* Load the default or specified configuration file.
|
|
* Modifies global $config and may establish plugins.
|
|
*
|
|
* @throws NoConfigException
|
|
*/
|
|
protected function loadConfigFile($conffile=null)
|
|
{
|
|
global $_server, $_path, $config;
|
|
|
|
// From most general to most specific:
|
|
// server-wide, then vhost-wide, then for a path,
|
|
// finally for a dir (usually only need one of the last two).
|
|
|
|
if (isset($conffile)) {
|
|
$config_files = array($conffile);
|
|
} else {
|
|
$config_files = array('/etc/statusnet/statusnet.php',
|
|
'/etc/statusnet/laconica.php',
|
|
'/etc/laconica/laconica.php',
|
|
'/etc/statusnet/'.$_server.'.php',
|
|
'/etc/laconica/'.$_server.'.php');
|
|
|
|
if (strlen($_path) > 0) {
|
|
$config_files[] = '/etc/statusnet/'.$_server.'_'.$_path.'.php';
|
|
$config_files[] = '/etc/laconica/'.$_server.'_'.$_path.'.php';
|
|
}
|
|
|
|
$config_files[] = INSTALLDIR.'/config.php';
|
|
}
|
|
|
|
self::$have_config = false;
|
|
|
|
foreach ($config_files as $_config_file) {
|
|
if (@file_exists($_config_file)) {
|
|
include($_config_file);
|
|
self::$have_config = true;
|
|
}
|
|
}
|
|
|
|
if (!self::$have_config) {
|
|
throw new NoConfigException("No configuration file found.",
|
|
$config_files);
|
|
}
|
|
|
|
// Fixup for statusnet.ini
|
|
$_db_name = substr($config['db']['database'], strrpos($config['db']['database'], '/') + 1);
|
|
|
|
if ($_db_name != 'statusnet' && !array_key_exists('ini_'.$_db_name, $config['db'])) {
|
|
$config['db']['ini_'.$_db_name] = INSTALLDIR.'/classes/statusnet.ini';
|
|
}
|
|
|
|
// Backwards compatibility
|
|
|
|
if (array_key_exists('memcached', $config)) {
|
|
if ($config['memcached']['enabled']) {
|
|
addPlugin('Memcache', array('servers' => $config['memcached']['server']));
|
|
}
|
|
|
|
if (!empty($config['memcached']['base'])) {
|
|
$config['cache']['base'] = $config['memcached']['base'];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
class NoConfigException extends Exception
|
|
{
|
|
public $configFiles;
|
|
|
|
function __construct($msg, $configFiles) {
|
|
parent::__construct($msg);
|
|
$this->configFiles = $configFiles;
|
|
}
|
|
}
|