gnu-social/plugins/DomainStatusNetwork/domainstatusnetworkinstaller.php

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<?php
/**
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2011, StatusNet, Inc.
*
* Installer class for domain-based multi-homing systems
*
* PHP version 5
*
* 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/>.
*
* @category DomainStatusNetwork
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2011 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
if (!defined('STATUSNET')) {
// This check helps protect against security problems;
// your code file can't be executed directly from the web.
exit(1);
}
/**
* Installer class for domain-based multi-homing systems
*
* @category DomainStatusNetwork
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @copyright 2011 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPL 3.0
* @link http://status.net/
*/
class DomainStatusNetworkInstaller extends Installer
{
protected $domain = null;
protected $rootname = null;
protected $sitedb = null;
protected $rootpass = null;
protected $nickname = null;
protected $sn = null;
public $verbose = false;
function __construct($domain)
{
$this->domain = $domain;
}
/**
* Go for it!
* @return boolean success
*/
function main()
{
// We don't check prereqs. Check 'em before setting up a
// multi-home system, kthxbi
if ($this->prepare()) {
return $this->handle();
} else {
$this->showHelp();
return false;
}
}
/**
* Get our input parameters...
* @return boolean success
*/
function prepare()
{
$config = $this->getConfig();
$this->nickname = DomainStatusNetworkPlugin::nicknameForDomain($this->domain);
// XXX make this configurable
$this->sitename = sprintf('The %s Status Network', $this->domain);
$this->server = $this->nickname.'.'.$config['WILDCARD'];
$this->path = null;
$this->fancy = true;
$datanick = $this->databaseize($this->nickname);
$this->host = $config['DBHOSTNAME'];
$this->database = $datanick.$config['DBBASE'];
$this->dbtype = 'mysql'; // XXX: support others... someday
$this->username = $datanick.$config['USERBASE'];
// Max size for MySQL
if (strlen($this->username) > 16) {
$this->username = sprintf('%s%08x', substr($this->username, 0, 8), crc32($this->username));
}
$pwgen = $config['PWDGEN'];
$password = `$pwgen`;
$this->password = trim($password);
// For setting up the database
$this->rootname = $config['ADMIN'];
$this->rootpass = $config['ADMINPASS'];
$this->sitehost = $config['DBHOST'];
$this->sitedb = $config['SITEDB'];
$tagstr = $config['TAGS'];
if (!empty($tagstr)) {
$this->tags = preg_split('/[\s,]+/', $tagstr);
} else {
$this->tags = array();
}
// Explicitly empty
$this->adminNick = null;
$this->adminPass = null;
$this->adminEmail = null;
$this->adminUpdates = null;
/** Should we skip writing the configuration file? */
$this->skipConfig = true;
if (!$this->validateDb()) {
return false;
}
return true;
}
function handle()
{
return $this->doInstall();
}
function setupDatabase()
{
$this->updateStatus('Creating database...');
$this->createDatabase();
parent::setupDatabase();
$this->updateStatus('Creating file directories...');
$this->createDirectories();
$this->updateStatus('Saving status network...');
$this->saveStatusNetwork();
$this->updateStatus('Checking schema for plugins...');
$this->checkSchema();
}
function saveStatusNetwork()
{
Status_network::setupDB($this->sitehost,
$this->rootname,
$this->rootpass,
$this->sitedb, array());
$sn = new Status_network();
$sn->nickname = $this->nickname;
$sn->dbhost = $this->host;
$sn->dbuser = $this->username;
$sn->dbpass = $this->password;
$sn->dbname = $this->database;
$sn->sitename = $this->sitename;
$result = $sn->insert();
if (!$result) {
throw new ServerException("Could not create status_network: " . print_r($sn, true));
}
// Re-fetch; stupid auto-increment integer isn't working
$sn = Status_network::staticGet('nickname', $sn->nickname);
if (empty($sn)) {
throw new ServerException("Created {$this->nickname} status_network and could not find it again.");
}
// Set default tags
$tags = $this->tags;
// Add domain tag
$tags[] = 'domain='.$this->domain;
$sn->setTags($tags);
$this->sn = $sn;
}
function checkSchema()
{
$config = $this->getConfig();
Status_network::$wildcard = $config['WILDCARD'];
StatusNet::switchSite($this->nickname);
Event::handle('CheckSchema');
}
function getStatusNetwork()
{
return $this->sn;
}
function createDirectories()
{
$config = $this->getConfig();
foreach (array('AVATARBASE', 'BACKGROUNDBASE', 'FILEBASE') as $key) {
$base = $config[$key];
$dirname = $base.'/'.$this->nickname;
// Make sure our bits are set
$mask = umask(0);
mkdir($dirname, 0770, true);
umask($mask);
// If you set the setuid bit on your base dirs this should be
// unnecessary, but just in case. You must be root for this
// to work.
if (array_key_exists('WEBUSER', $config)) {
chown($dirname, $config['WEBUSER']);
}
if (array_key_exists('WEBGROUP', $config)) {
chgrp($dirname, $config['WEBGROUP']);
}
}
}
function createDatabase()
{
// Create the New DB
$res = mysql_connect($this->host, $this->rootname, $this->rootpass);
if (!$res) {
throw new ServerException("Cannot connect to {$this->host} as {$this->rootname}.");
}
mysql_query("CREATE DATABASE ". mysql_real_escape_string($this->database), $res);
$return = mysql_select_db($this->database, $res);
if (!$return) {
throw new ServerException("Unable to connect to {$this->database} on {$this->host}.");
}
foreach (array('localhost', '%') as $src) {
mysql_query("GRANT ALL ON " .
mysql_real_escape_string($this->database).".* TO '" .
$this->username . "'@'".$src."' ".
"IDENTIFIED BY '".$this->password."'", $res);
}
mysql_close($res);
}
function getConfig()
{
static $config;
$cfg_file = "/etc/statusnet/setup.cfg";
if (empty($config)) {
$result = parse_ini_file($cfg_file);
$config = array();
foreach ($result as $key => $value) {
$key = str_replace('export ', '', $key);
$config[$key] = $value;
}
}
return $config;
}
function showHelp()
{
}
function warning($message, $submessage='')
{
print $this->html2text($message) . "\n";
if ($submessage != '') {
print " " . $this->html2text($submessage) . "\n";
}
print "\n";
}
function updateStatus($status, $error=false)
{
if ($this->verbose || $error) {
if ($error) {
print "ERROR: ";
}
print $this->html2text($status);
print "\n";
}
}
private function html2text($html)
{
// break out any links for text legibility
$breakout = preg_replace('/<a[^>+]\bhref="(.*)"[^>]*>(.*)<\/a>/',
'\2 &lt;\1&gt;',
$html);
return html_entity_decode(strip_tags($breakout), ENT_QUOTES, 'UTF-8');
}
function databaseize($nickname)
{
$nickname = str_replace('-', '_', $nickname);
return $nickname;
}
}