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+<?php
+
+/**
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 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/>.
+ *
+ * @category Installation
+ * @package Installation
+ *
+ * @author Adrian Lang <mail@adrianlang.de>
+ * @author Brenda Wallace <shiny@cpan.org>
+ * @author Brett Taylor <brett@webfroot.co.nz>
+ * @author Brion Vibber <brion@pobox.com>
+ * @author CiaranG <ciaran@ciarang.com>
+ * @author Craig Andrews <candrews@integralblue.com>
+ * @author Eric Helgeson <helfire@Erics-MBP.local>
+ * @author Evan Prodromou <evan@status.net>
+ * @author Robin Millette <millette@controlyourself.ca>
+ * @author Sarven Capadisli <csarven@status.net>
+ * @author Tom Adams <tom@holizz.com>
+ * @author Zach Copley <zach@status.net>
+ * @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
+ * @license GNU Affero General Public License http://www.gnu.org/licenses/
+ * @version 0.9.x
+ * @link http://status.net
+ */
+
+abstract class Installer
+{
+ /** Web site info */
+ public $sitename, $server, $path, $fancy;
+ /** DB info */
+ public $host, $dbname, $dbtype, $username, $password, $db;
+ /** Administrator info */
+ public $adminNick, $adminPass, $adminEmail, $adminUpdates;
+ /** Should we skip writing the configuration file? */
+ public $skipConfig = false;
+
+ public static $dbModules = array(
+ 'mysql' => array(
+ 'name' => 'MySQL',
+ 'check_module' => 'mysqli',
+ 'installer' => 'mysql_db_installer',
+ ),
+ 'pgsql' => array(
+ 'name' => 'PostgreSQL',
+ 'check_module' => 'pgsql',
+ 'installer' => 'pgsql_db_installer',
+ ),
+ );
+
+ /**
+ * Attempt to include a PHP file and report if it worked, while
+ * suppressing the annoying warning messages on failure.
+ */
+ private function haveIncludeFile($filename) {
+ $old = error_reporting(error_reporting() & ~E_WARNING);
+ $ok = include_once($filename);
+ error_reporting($old);
+ return $ok;
+ }
+
+ /**
+ * Check if all is ready for installation
+ *
+ * @return void
+ */
+ function checkPrereqs()
+ {
+ $pass = true;
+
+ $config = INSTALLDIR.'/config.php';
+ if (file_exists($config)) {
+ if (!is_writable($config) || filesize($config) > 0) {
+ $this->warning('Config file "config.php" already exists.');
+ $pass = false;
+ }
+ }
+
+ if (version_compare(PHP_VERSION, '5.2.3', '<')) {
+ $this->warning('Require PHP version 5.2.3 or greater.');
+ $pass = false;
+ }
+
+ // Look for known library bugs
+ $str = "abcdefghijklmnopqrstuvwxyz";
+ $replaced = preg_replace('/[\p{Cc}\p{Cs}]/u', '*', $str);
+ if ($str != $replaced) {
+ $this->warning('PHP is linked to a version of the PCRE library ' .
+ 'that does not support Unicode properties. ' .
+ 'If you are running Red Hat Enterprise Linux / ' .
+ 'CentOS 5.4 or earlier, see <a href="' .
+ 'http://status.net/wiki/Red_Hat_Enterprise_Linux#PCRE_library' .
+ '">our documentation page</a> on fixing this.');
+ $pass = false;
+ }
+
+ $reqs = array('gd', 'curl',
+ 'xmlwriter', 'mbstring', 'xml', 'dom', 'simplexml');
+
+ foreach ($reqs as $req) {
+ if (!$this->checkExtension($req)) {
+ $this->warning(sprintf('Cannot load required extension: <code>%s</code>', $req));
+ $pass = false;
+ }
+ }
+
+ // Make sure we have at least one database module available
+ $missingExtensions = array();
+ foreach (self::$dbModules as $type => $info) {
+ if (!$this->checkExtension($info['check_module'])) {
+ $missingExtensions[] = $info['check_module'];
+ }
+ }
+
+ if (count($missingExtensions) == count(self::$dbModules)) {
+ $req = implode(', ', $missingExtensions);
+ $this->warning(sprintf('Cannot find a database extension. You need at least one of %s.', $req));
+ $pass = false;
+ }
+
+ // @fixme this check seems to be insufficient with Windows ACLs
+ if (!is_writable(INSTALLDIR)) {
+ $this->warning(sprintf('Cannot write config file to: <code>%s</code></p>', INSTALLDIR),
+ sprintf('On your server, try this command: <code>chmod a+w %s</code>', INSTALLDIR));
+ $pass = false;
+ }
+
+ // Check the subdirs used for file uploads
+ $fileSubdirs = array('avatar', 'background', 'file');
+ foreach ($fileSubdirs as $fileSubdir) {
+ $fileFullPath = INSTALLDIR."/$fileSubdir/";
+ if (!is_writable($fileFullPath)) {
+ $this->warning(sprintf('Cannot write to %s directory: <code>%s</code>', $fileSubdir, $fileFullPath),
+ sprintf('On your server, try this command: <code>chmod a+w %s</code>', $fileFullPath));
+ $pass = false;
+ }
+ }
+
+ return $pass;
+ }
+
+ /**
+ * Checks if a php extension is both installed and loaded
+ *
+ * @param string $name of extension to check
+ *
+ * @return boolean whether extension is installed and loaded
+ */
+ function checkExtension($name)
+ {
+ if (extension_loaded($name)) {
+ return true;
+ } elseif (function_exists('dl') && ini_get('enable_dl') && !ini_get('safe_mode')) {
+ // dl will throw a fatal error if it's disabled or we're in safe mode.
+ // More fun, it may not even exist under some SAPIs in 5.3.0 or later...
+ $soname = $name . '.' . PHP_SHLIB_SUFFIX;
+ if (PHP_SHLIB_SUFFIX == 'dll') {
+ $soname = "php_" . $soname;
+ }
+ return @dl($soname);
+ } else {
+ return false;
+ }
+ }
+
+ /**
+ * Basic validation on the database paramters
+ * Side effects: error output if not valid
+ *
+ * @return boolean success
+ */
+ function validateDb()
+ {
+ $fail = false;
+
+ if (empty($this->host)) {
+ $this->updateStatus("No hostname specified.", true);
+ $fail = true;
+ }
+
+ if (empty($this->database)) {
+ $this->updateStatus("No database specified.", true);
+ $fail = true;
+ }
+
+ if (empty($this->username)) {
+ $this->updateStatus("No username specified.", true);
+ $fail = true;
+ }
+
+ if (empty($this->sitename)) {
+ $this->updateStatus("No sitename specified.", true);
+ $fail = true;
+ }
+
+ return !$fail;
+ }
+
+ /**
+ * Basic validation on the administrator user paramters
+ * Side effects: error output if not valid
+ *
+ * @return boolean success
+ */
+ function validateAdmin()
+ {
+ $fail = false;
+
+ if (empty($this->adminNick)) {
+ $this->updateStatus("No initial StatusNet user nickname specified.", true);
+ $fail = true;
+ }
+ if ($this->adminNick && !preg_match('/^[0-9a-z]{1,64}$/', $this->adminNick)) {
+ $this->updateStatus('The user nickname "' . htmlspecialchars($this->adminNick) .
+ '" is invalid; should be plain letters and numbers no longer than 64 characters.', true);
+ $fail = true;
+ }
+ // @fixme hardcoded list; should use User::allowed_nickname()
+ // if/when it's safe to have loaded the infrastructure here
+ $blacklist = array('main', 'admin', 'twitter', 'settings', 'rsd.xml', 'favorited', 'featured', 'favoritedrss', 'featuredrss', 'rss', 'getfile', 'api', 'groups', 'group', 'peopletag', 'tag', 'user', 'message', 'conversation', 'bookmarklet', 'notice', 'attachment', 'search', 'index.php', 'doc', 'opensearch', 'robots.txt', 'xd_receiver.html', 'facebook');
+ if (in_array($this->adminNick, $blacklist)) {
+ $this->updateStatus('The user nickname "' . htmlspecialchars($this->adminNick) .
+ '" is reserved.', true);
+ $fail = true;
+ }
+
+ if (empty($this->adminPass)) {
+ $this->updateStatus("No initial StatusNet user password specified.", true);
+ $fail = true;
+ }
+
+ return !$fail;
+ }
+
+ /**
+ * Set up the database with the appropriate function for the selected type...
+ * Saves database info into $this->db.
+ *
+ * @return mixed array of database connection params on success, false on failure
+ */
+ function setupDatabase()
+ {
+ if ($this->db) {
+ throw new Exception("Bad order of operations: DB already set up.");
+ }
+ $method = self::$dbModules[$this->dbtype]['installer'];
+ $db = call_user_func(array($this, $method),
+ $this->host,
+ $this->database,
+ $this->username,
+ $this->password);
+ $this->db = $db;
+ return $this->db;
+ }
+
+ /**
+ * Set up a database on PostgreSQL.
+ * Will output status updates during the operation.
+ *
+ * @param string $host
+ * @param string $database
+ * @param string $username
+ * @param string $password
+ * @return mixed array of database connection params on success, false on failure
+ *
+ * @fixme escape things in the connection string in case we have a funny pass etc
+ */
+ function Pgsql_Db_installer($host, $database, $username, $password)
+ {
+ $connstring = "dbname=$database host=$host user=$username";
+
+ //No password would mean trust authentication used.
+ if (!empty($password)) {
+ $connstring .= " password=$password";
+ }
+ $this->updateStatus("Starting installation...");
+ $this->updateStatus("Checking database...");
+ $conn = pg_connect($connstring);
+
+ if ($conn ===false) {
+ $this->updateStatus("Failed to connect to database: $connstring");
+ return false;
+ }
+
+ //ensure database encoding is UTF8
+ $record = pg_fetch_object(pg_query($conn, 'SHOW server_encoding'));
+ if ($record->server_encoding != 'UTF8') {
+ $this->updateStatus("StatusNet requires UTF8 character encoding. Your database is ". htmlentities($record->server_encoding));
+ return false;
+ }
+
+ $this->updateStatus("Running database script...");
+ //wrap in transaction;
+ pg_query($conn, 'BEGIN');
+ $res = $this->runDbScript('statusnet_pg.sql', $conn, 'pgsql');
+
+ if ($res === false) {
+ $this->updateStatus("Can't run database script.", true);
+ return false;
+ }
+ foreach (array('sms_carrier' => 'SMS carrier',
+ 'notice_source' => 'notice source',
+ 'foreign_services' => 'foreign service')
+ as $scr => $name) {
+ $this->updateStatus(sprintf("Adding %s data to database...", $name));
+ $res = $this->runDbScript($scr.'.sql', $conn, 'pgsql');
+ if ($res === false) {
+ $this->updateStatus(sprintf("Can't run %s script.", $name), true);
+ return false;
+ }
+ }
+ pg_query($conn, 'COMMIT');
+
+ if (empty($password)) {
+ $sqlUrl = "pgsql://$username@$host/$database";
+ } else {
+ $sqlUrl = "pgsql://$username:$password@$host/$database";
+ }
+
+ $db = array('type' => 'pgsql', 'database' => $sqlUrl);
+
+ return $db;
+ }
+
+ /**
+ * Set up a database on MySQL.
+ * Will output status updates during the operation.
+ *
+ * @param string $host
+ * @param string $database
+ * @param string $username
+ * @param string $password
+ * @return mixed array of database connection params on success, false on failure
+ *
+ * @fixme escape things in the connection string in case we have a funny pass etc
+ */
+ function Mysql_Db_installer($host, $database, $username, $password)
+ {
+ $this->updateStatus("Starting installation...");
+ $this->updateStatus("Checking database...");
+
+ $conn = mysqli_init();
+ if (!$conn->real_connect($host, $username, $password)) {
+ $this->updateStatus("Can't connect to server '$host' as '$username'.", true);
+ return false;
+ }
+ $this->updateStatus("Changing to database...");
+ if (!$conn->select_db($database)) {
+ $this->updateStatus("Can't change to database.", true);
+ return false;
+ }
+
+ $this->updateStatus("Running database script...");
+ $res = $this->runDbScript('statusnet.sql', $conn);
+ if ($res === false) {
+ $this->updateStatus("Can't run database script.", true);
+ return false;
+ }
+ foreach (array('sms_carrier' => 'SMS carrier',
+ 'notice_source' => 'notice source',
+ 'foreign_services' => 'foreign service')
+ as $scr => $name) {
+ $this->updateStatus(sprintf("Adding %s data to database...", $name));
+ $res = $this->runDbScript($scr.'.sql', $conn);
+ if ($res === false) {
+ $this->updateStatus(sprintf("Can't run %d script.", $name), true);
+ return false;
+ }
+ }
+
+ $sqlUrl = "mysqli://$username:$password@$host/$database";
+ $db = array('type' => 'mysql', 'database' => $sqlUrl);
+ return $db;
+ }
+
+ /**
+ * Write a stock configuration file.
+ *
+ * @return boolean success
+ *
+ * @fixme escape variables in output in case we have funny chars, apostrophes etc
+ */
+ function writeConf()
+ {
+ // assemble configuration file in a string
+ $cfg = "<?php\n".
+ "if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }\n\n".
+
+ // site name
+ "\$config['site']['name'] = '{$this->sitename}';\n\n".
+
+ // site location
+ "\$config['site']['server'] = '{$this->server}';\n".
+ "\$config['site']['path'] = '{$this->path}'; \n\n".
+
+ // checks if fancy URLs are enabled
+ ($this->fancy ? "\$config['site']['fancy'] = true;\n\n":'').
+
+ // database
+ "\$config['db']['database'] = '{$this->db['database']}';\n\n".
+ ($this->db['type'] == 'pgsql' ? "\$config['db']['quote_identifiers'] = true;\n\n":'').
+ "\$config['db']['type'] = '{$this->db['type']}';\n\n";
+
+ // Normalize line endings for Windows servers
+ $cfg = str_replace("\n", PHP_EOL, $cfg);
+
+ // write configuration file out to install directory
+ $res = file_put_contents(INSTALLDIR.'/config.php', $cfg);
+
+ return $res;
+ }
+
+ /**
+ * Install schema into the database
+ *
+ * @param string $filename location of database schema file
+ * @param dbconn $conn connection to database
+ * @param string $type type of database, currently mysql or pgsql
+ *
+ * @return boolean - indicating success or failure
+ */
+ function runDbScript($filename, $conn, $type = 'mysqli')
+ {
+ $sql = trim(file_get_contents(INSTALLDIR . '/db/' . $filename));
+ $stmts = explode(';', $sql);
+ foreach ($stmts as $stmt) {
+ $stmt = trim($stmt);
+ if (!mb_strlen($stmt)) {
+ continue;
+ }
+ // FIXME: use PEAR::DB or PDO instead of our own switch
+ switch ($type) {
+ case 'mysqli':
+ $res = $conn->query($stmt);
+ if ($res === false) {
+ $error = $conn->error;
+ }
+ break;
+ case 'pgsql':
+ $res = pg_query($conn, $stmt);
+ if ($res === false) {
+ $error = pg_last_error();
+ }
+ break;
+ default:
+ $this->updateStatus("runDbScript() error: unknown database type ". $type ." provided.");
+ }
+ if ($res === false) {
+ $this->updateStatus("ERROR ($error) for SQL '$stmt'");
+ return $res;
+ }
+ }
+ return true;
+ }
+
+ /**
+ * Create the initial admin user account.
+ * Side effect: may load portions of StatusNet framework.
+ * Side effect: outputs program info
+ */
+ function registerInitialUser()
+ {
+ define('STATUSNET', true);
+ define('LACONICA', true); // compatibility
+
+ require_once INSTALLDIR . '/lib/common.php';
+
+ $data = array('nickname' => $this->adminNick,
+ 'password' => $this->adminPass,
+ 'fullname' => $this->adminNick);
+ if ($this->adminEmail) {
+ $data['email'] = $this->adminEmail;
+ }
+ $user = User::register($data);
+
+ if (empty($user)) {
+ return false;
+ }
+
+ // give initial user carte blanche
+
+ $user->grantRole('owner');
+ $user->grantRole('moderator');
+ $user->grantRole('administrator');
+
+ // Attempt to do a remote subscribe to update@status.net
+ // Will fail if instance is on a private network.
+
+ if ($this->adminUpdates && class_exists('Ostatus_profile')) {
+ try {
+ $oprofile = Ostatus_profile::ensureProfileURL('http://update.status.net/');
+ Subscription::start($user->getProfile(), $oprofile->localProfile());
+ $this->updateStatus("Set up subscription to <a href='http://update.status.net/'>update@status.net</a>.");
+ } catch (Exception $e) {
+ $this->updateStatus("Could not set up subscription to <a href='http://update.status.net/'>update@status.net</a>.", true);
+ }
+ }
+
+ return true;
+ }
+
+ /**
+ * The beef of the installer!
+ * Create database, config file, and admin user.
+ *
+ * Prerequisites: validation of input data.
+ *
+ * @return boolean success
+ */
+ function doInstall()
+ {
+ $this->db = $this->setupDatabase();
+
+ if (!$this->db) {
+ // database connection failed, do not move on to create config file.
+ return false;
+ }
+
+ if (!$this->skipConfig) {
+ $this->updateStatus("Writing config file...");
+ $res = $this->writeConf();
+
+ if (!$res) {
+ $this->updateStatus("Can't write config file.", true);
+ return false;
+ }
+ }
+
+ if (!empty($this->adminNick)) {
+ // Okay, cross fingers and try to register an initial user
+ if ($this->registerInitialUser()) {
+ $this->updateStatus(
+ "An initial user with the administrator role has been created."
+ );
+ } else {
+ $this->updateStatus(
+ "Could not create initial StatusNet user (administrator).",
+ true
+ );
+ return false;
+ }
+ }
+
+ /*
+ TODO https needs to be considered
+ */
+ $link = "http://".$this->server.'/'.$this->path;
+
+ $this->updateStatus("StatusNet has been installed at $link");
+ $this->updateStatus(
+ "<strong>DONE!</strong> You can visit your <a href='$link'>new StatusNet site</a> (login as '$this->adminNick'). If this is your first StatusNet install, you may want to poke around our <a href='http://status.net/wiki/Getting_started'>Getting Started guide</a>."
+ );
+
+ return true;
+ }
+
+ /**
+ * Output a pre-install-time warning message
+ * @param string $message HTML ok, but should be plaintext-able
+ * @param string $submessage HTML ok, but should be plaintext-able
+ */
+ abstract function warning($message, $submessage='');
+
+ /**
+ * Output an install-time progress message
+ * @param string $message HTML ok, but should be plaintext-able
+ * @param boolean $error true if this should be marked as an error condition
+ */
+ abstract function updateStatus($status, $error=false);
+
+}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-10-30 10:12:52 +0000