<?php
/*
* Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
* Copyright (C) 2006-2009 Dan Fuhry
* Installation package
* payload.php - Installer payload (the installation logic)
*
* This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2 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 General Public License for details.
*/
if ( !defined('IN_ENANO_INSTALL') )
die();
return true;
function stg_sim_good()
{
return true;
}
function stg_sim_bad()
{
return true;
}
function stg_password_decode()
{
global $db;
static $pass = false;
if ( $pass )
return $pass;
if ( !isset($_POST['crypt_data']) && !empty($_POST['password']) && $_POST['password'] === $_POST['password_confirm'] )
$pass = $_POST['password'];
$aes = AESCrypt::singleton(AES_BITS, AES_BLOCKSIZE);
// retrieve encryption key
$q = $db->sql_query('SELECT config_value FROM ' . table_prefix . 'config WHERE config_name=\'install_aes_key\';');
if ( !$q )
$db->_die();
if ( $db->numrows() < 1 )
return false;
list($aes_key) = $db->fetchrow_num();
$aes_key = hexdecode($aes_key);
$pass = $aes->decrypt($_POST['crypt_data'], $aes_key, ENC_HEX);
if ( !$pass )
return false;
return $pass; // Will be true if the password isn't crapped
}
function stg_make_private_key()
{
global $db;
static $site_key = false;
if ( $site_key )
return $site_key;
// Is there already a key cached in the database?
$q = $db->sql_query('SELECT config_value FROM ' . table_prefix . 'config WHERE config_name=\'site_aes_key\';');
if ( !$q )
$db->_die();
if ( $db->numrows() > 0 )
{
list($site_key) = $db->fetchrow_num();
$db->free_result();
return $site_key;
}
$aes = AESCrypt::singleton(AES_BITS, AES_BLOCKSIZE);
// This will use /dev/urandom if possible
$site_key = $aes->gen_readymade_key();
// Stash it in the database, don't check for errors though because we can always regenerate it
$db->sql_query('INSERT INTO ' . table_prefix . 'config ( config_name, config_value ) VALUES ( \'site_aes_key\', \'' . $site_key . '\' );');
return $site_key;
}
function stg_load_schema()
{
global $db, $dbdriver, $installer_version, $lang_id, $languages;
static $sql_parser = false;
if ( is_object($sql_parser) )
return $sql_parser->parse();
$aes = AESCrypt::singleton(AES_BITS, AES_BLOCKSIZE);
$hmac_secret = hexencode(AESCrypt::randkey(20), '', '');
$site_key = stg_make_private_key();
$site_key = hexdecode($site_key);
$admin_pass_clean = stg_password_decode();
$admin_pass = hmac_sha1($admin_pass_clean, $hmac_secret);
unset($admin_pass_clean); // Security
try
{
$sql_parser = new SQL_Parser( ENANO_ROOT . "/install/schemas/{$dbdriver}_stage2.sql" );
}
catch ( Exception $e )
{
echo "<pre>$e</pre>";
return false;
}
$vars = array(
'TABLE_PREFIX' => table_prefix,
'SITE_NAME' => $db->escape($_POST['site_name']),
'SITE_DESC' => $db->escape($_POST['site_desc']),
'COPYRIGHT' => $db->escape($_POST['copyright']),
// FIXME: update form
'WIKI_MODE' => ( isset($_POST['wiki_mode']) ? '1' : '0' ),
'ENABLE_CACHE' => ( is_writable( ENANO_ROOT . '/cache/' ) ? '1' : '0' ),
'VERSION' => $installer_version['version'],
'ADMIN_USER' => $db->escape($_POST['username']),
'ADMIN_PASS' => $admin_pass,
'ADMIN_PASS_SALT' => $hmac_secret,
'ADMIN_EMAIL' => $db->escape($_POST['email']),
'REAL_NAME' => '', // This has always been stubbed.
'ADMIN_EMBED_PHP' => strval(AUTH_DISALLOW),
'UNIX_TIME' => strval(time()),
'IP_ADDRESS' => $db->escape($_SERVER['REMOTE_ADDR'])
);
$sql_parser->assign_vars($vars);
return true;
}
function stg_deliver_payload()
{
global $db;
$schema = stg_load_schema();
foreach ( $schema as $sql )
{
if ( !$db->sql_query($sql) )
{
echo $db->get_error();
return false;
}
}
return true;
}
function stg_write_config()
{
global $dbhost, $dbuser, $dbpasswd, $dbname, $dbdriver, $dbport;
$db_data = array(
'host' => str_replace("'", "\\'", $dbhost),
'user' => str_replace("'", "\\'", $dbuser),
'pass' => str_replace("'", "\\'", $dbpasswd),
'name' => str_replace("'", "\\'", $dbname),
'port' => intval($dbport),
'tp' => table_prefix,
'drv' => $dbdriver
);
// Retrieves the existing key
$site_key = stg_make_private_key();
// Determine contentPath
switch ( @$_POST['url_scheme'] )
{
case 'standard':
default:
$sp_append = '/index.php?title=';
break;
case 'shortened':
$sp_append = '/index.php/';
break;
case 'tiny':
$sp_append = '/?/';
break;
case 'rewrite':
$sp_append = '/';
break;
}
$scriptpath = scriptPath;
$contentpath = $scriptpath . $sp_append;
$config_file = <<<EOF
<?php
/**
* Enano site configuration
* NOTE ON EDITING: You should almost never need to change anything in this
* file. The only exceptions are when your DB password/other info is changed
* or if you are moving your Enano installation to another directory.
*/
//
// DATABASE INFO
//
// Database type to use, currently mysql and postgresql are supported
\$dbdriver = '{$db_data['drv']}';
// Hostname of your database server, probably localhost
\$dbhost = '{$db_data['host']}';
// Port number for database server, probably 3306 (MySQL) or 5432 (PostgreSQL)
\$dbport = '{$db_data['port']}';
// Username used to connect to the database
\$dbuser = '{$db_data['user']}';
// Database password
\$dbpasswd = '{$db_data['pass']}';
// Name of the database
\$dbname = '{$db_data['name']}';
//
// CONSTANTS
//
// if they're already defined, no use re-defining them
if ( !defined('ENANO_CONSTANTS') )
{
// The prefix for the tables in the database. Useful for holding more than
// one Enano installation in the same database.
define('table_prefix', '{$db_data['tp']}');
// The path to Enano's files on your server, from the document root. If
// Enano is installed in your document root this will be blank; installing
// Enano in /enano/ will result in "/enano" here, etc.
define('scriptPath', '$scriptpath');
// The authoritative prefix for pages. This should be very literal: to
// generate a URL on the site, the format is basically
// contentPath . \$page_name. This is based off of scriptPath and the URL
// scheme selected during installation. Pattern:
//
// * Standard URLs: scriptPath . '/index.php?title='
// * Shortened URLs: scriptPath . '/index.php/'
// * mod_rewrite: scriptPath . '/'
define('contentPath', '$contentpath');
// Tell the Enano API that we're installed and that this file is complete
define('ENANO_INSTALLED', 'You bet!');
define('ENANO_CONSTANTS', '');
}
// The AES encryption key used to store passwords. We have a very specific
// reason for doing this; see the rationale at:
// http://docs.enanocms.org/Help:Appendix_B
\$crypto_key = '$site_key';
EOF;
// Write config file
$ch = @fopen ( ENANO_ROOT . '/config.new.php', 'w' );
if ( !$ch )
return false;
fwrite($ch, $config_file);
fclose($ch);
// If we are using mod_rewrite, also append any existing .htaccess
if ( @$_POST['url_scheme'] === 'rewrite' )
{
$hh = @fopen ( ENANO_ROOT . '/.htaccess.new', 'w' );
if ( !$hh )
return false;
$hhc = <<<EOF
#
# START ENANO RULES
#
# Enable mod_rewrite
RewriteEngine on
# Required under some aliased setups
RewriteBase $scriptpath
# Don't rewrite if the user requested a real directory or file
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
# Main rule - short and sweet
RewriteRule (.*) index.php?title=\$1 [L,QSA]
EOF;
fwrite($hh, $hhc);
fclose($hh);
}
return true;
}
function stg_language_setup()
{
global $languages, $db;
global $lang_id;
$lang_info =& $languages[$lang_id];
if ( !is_array($lang_info) )
return false;
// Install the language
// ($lang_code, $lang_name_neutral, $lang_name_local, $lang_file = false)
$result = install_language($lang_id, $lang_info['name_eng'], $lang_info['name'], ENANO_ROOT . "/language/{$lang_info['dir']}/core.json");
if ( !$result )
return false;
$lang_local = new Language($lang_id);
$lang_local->import( ENANO_ROOT . "/language/{$lang_info['dir']}/user.json" );
$lang_local->import( ENANO_ROOT . "/language/{$lang_info['dir']}/tools.json" );
$lang_local->import( ENANO_ROOT . "/language/{$lang_info['dir']}/admin.json" );
$q = $db->sql_query('SELECT lang_id FROM ' . table_prefix . 'language ORDER BY lang_id DESC LIMIT 1;');
if ( !$q )
$db->_die();
list($lang_id_int) = $db->fetchrow_num();
$db->free_result();
setConfig('default_language', $lang_id_int);
return true;
}
function stg_add_content()
{
global $db, $session, $paths, $template, $plugins; // Common objects
global $cache;
global $languages;
global $lang_id;
$lang_info =& $languages[$lang_id];
if ( !is_array($lang_info) )
return false;
if ( $_POST['default_content_type'] === 'tutorial' )
{
$dir = ENANO_ROOT . "/language/{$lang_info['dir']}/install/default-tutorial";
}
else
{
$dir = ENANO_ROOT . "/language/{$lang_info['dir']}/install/default-blank";
}
if ( !$dr = @opendir($dir) )
return false;
while ( $dh = @readdir($dr) )
{
if ( !preg_match('/\.txt$/', $dh) )
continue;
$page_contents = @file_get_contents("$dir/$dh");
if ( empty($page_contents) )
return false;
$page_name = preg_replace('/\.txt$/', '', $dh);
if ( !install_primitive_page_creator($page_name, 'Article', $page_contents) )
return false;
}
closedir($dr);
$cache->purge('page_meta');
return true;
}
function install_primitive_page_creator($page_id, $namespace, $content)
{
global $db, $session, $paths, $template, $plugins; // Common objects
$page_title = $db->escape(str_replace('_', ' ', dirtify_page_id($page_id)));
$author = $db->escape($_POST['username']);
$page_id = $db->escape($page_id);
$namespace = $db->escape($namespace);
// yes, we do probably want strip_all_php ON.
$content = RenderMan::preprocess_text($content, true, true);
$now = time();
// query 1: logs
$q = $db->sql_query('INSERT INTO ' . table_prefix . "logs(time_id, date_string, log_type, action, page_id, namespace, author, page_text) VALUES\n"
. " ( $now, 'DEPRECATED', 'page', 'edit', '$page_id', '$namespace', '$author', '$content');");
if ( !$q )
{
echo $db->get_error();
return false;
}
// query 2: page_text
$q = $db->sql_query('INSERT INTO ' . table_prefix . "page_text(page_id, namespace, page_text) VALUES\n"
. " ( '$page_id', '$namespace', '$content');");
if ( !$q )
{
echo $db->get_error();
return false;
}
// query 3: pages
$q = $db->sql_query('INSERT INTO ' . table_prefix . "pages(page_order, name, urlname, namespace, special, visible, comments_on, protected, delvotes, delvote_ips) VALUES\n"
. " (NULL, '$page_title', '$page_id', '$namespace', 0, 1, 1, 1, 0, '');");
if ( !$q )
{
echo $db->get_error();
return false;
}
return true;
}
function stg_init_logs()
{
global $db, $session, $paths, $template, $plugins; // Common objects
global $installer_version;
$q = $db->sql_query('INSERT INTO ' . table_prefix . 'logs(log_type,action,time_id,date_string,author,page_text,edit_summary) VALUES(\'security\', \'install_enano\', ' . time() . ', \'' . enano_date(ED_DATE | ED_TIME) . '\', \'' . $db->escape($_POST['username']) . '\', \'' . $db->escape(enano_version()) . '\', \'' . $db->escape($_SERVER['REMOTE_ADDR']) . '\');');
if ( !$q )
{
echo '<p><tt>MySQL return: ' . $db->sql_error() . '</tt></p>';
return false;
}
return true;
}
function stg_aes_cleanup()
{
global $db, $session, $paths, $template, $plugins; // Common objects
$q = $db->sql_query('DELETE FROM ' . table_prefix . 'config WHERE config_name = \'install_aes_key\' OR config_name = \'site_aes_key\';');
if ( !$q )
$db->_die();
return true;
}
function _stg_rename_config_revert()
{
if ( file_exists('./config.php') )
{
@rename('./config.php', './config.new.php');
}
$handle = @fopen('./config.php.new', 'w');
if ( !$handle )
return false;
$contents = '<?php $cryptkey = \'' . _INSTRESUME_AES_KEYBACKUP . '\'; ?>';
fwrite($handle, $contents);
fclose($handle);
return true;
}
function stg_build_index()
{
global $db, $session, $paths, $template, $plugins; // Common objects
if ( $paths->rebuild_search_index() )
return true;
return false;
}
function stg_rename_config()
{
if ( !@rename(ENANO_ROOT . '/config.new.php', ENANO_ROOT . '/config.php') )
{
echo '<p>Can\'t rename config.php</p>';
_stg_rename_config_revert();
return false;
}
if ( @filesize(ENANO_ROOT . '/.htaccess.new') > 1 )
{
// rename/possibly concatenate .htaccess.new
$htaccess_base = '';
if ( file_exists(ENANO_ROOT . '/.htaccess') )
$htaccess_base .= @file_get_contents(ENANO_ROOT . '/.htaccess');
if ( strlen($htaccess_base) > 0 && !preg_match("/\n$/", $htaccess_base) )
$htaccess_base .= "\n\n";
$htaccess_base .= @file_get_contents(ENANO_ROOT . '/.htaccess.new');
if ( file_exists(ENANO_ROOT . '/.htaccess') )
{
$hh = @fopen(ENANO_ROOT . '/.htaccess', 'w');
if ( !$hh )
return false;
fwrite($hh, $htaccess_base);
fclose($hh);
@unlink(ENANO_ROOT . '/.htaccess.new');
return true;
}
else
{
return @rename(ENANO_ROOT . '/.htaccess.new', ENANO_ROOT . '/.htaccess');
}
}
else
{
@unlink(ENANO_ROOT . '/.htaccess.new');
}
return true;
}
/**
* UPGRADE STAGES
*/
function stg_lang_import()
{
global $db, $languages, $do_langimport;
define('IN_ENANO_UPGRADE_POST', 1);
//
// IMPORT NEW STRINGS
//
// for each installed language, look for the json files in the filesystem and if they're ok, import new strings from them
$q = $db->sql_query('SELECT lang_id, lang_code FROM ' . table_prefix . "language;");
if ( !$q )
$db->_die();
while ( $row = $db->fetchrow($q) )
{
if ( isset($languages[$row['lang_code']]) )
{
// found a language and it's good on the filesystem; load it and call a reimport
$lang_local = new Language($row['lang_id']);
// call fetch to make sure we're up to date
$lang_local->fetch();
// import
foreach ( array('core', 'admin', 'user', 'tools') as $language_file )
{
// generate full path
$language_file = ENANO_ROOT . "/language/{$languages[$row['lang_code']]['dir']}/$language_file.json";
// setting the second parameter to bool(true) causes it to skip existing strings
if ( !$lang_local->import($language_file, ( !$do_langimport )) )
// on failure, report failure to libenanoinstall
return false;
}
// unload this lang_local object to save memory
unset($lang_local);
}
}
return true;
}
function stg_flush_cache()
{
return purge_all_caches();
}
function stg_set_version()
{
global $db, $session, $paths, $template, $plugins; // Common objects
// log the upgrade
$q = $db->sql_query('INSERT INTO '.table_prefix.'logs(log_type,action,time_id,date_string,author,page_text,edit_summary) VALUES'
. '(\'security\', \'upgrade_enano\', ' . time() . ', \'[DEPRECATED]\', \'' . $db->escape($session->username) . '\', \'' . $db->escape(installer_enano_version()) . '\', \'' . $db->escape($_SERVER['REMOTE_ADDR']) . '\');');
if ( !$q )
{
$db->_die();
return false;
}
setConfig('enano_version', installer_enano_version());
return true;
}