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<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/
/**
* @ignore
*/
if (!defined('IN_PHPBB'))
{
    exit;
}
/**
* This class collects data which is used to create some usage statistics.
*
* The collected data is - after authorization of the administrator - submitted
* to a central server. For privacy reasons we try to collect only data which aren't private
* or don't give any information which might help to identify the user.
*
* @author        Johannes Schlueter <johannes@php.net>
* @copyright    (c) 2007-2008 Johannes Schlueter
*/
class phpbb_questionnaire_data_collector
{
    var $providers;
    var $data = null;
    var $install_id = '';
    /**
    * Constructor.
    *
    * @param    string
    */
    function __construct($install_id)
    {
        $this->install_id = $install_id;
        $this->providers = array();
    }
    function add_data_provider($provider)
    {
        $this->providers[] = $provider;
    }
    /**
    * Get data as an array.
    *
    * @return    array    All Data
    */
    function get_data_raw()
    {
        if (!$this->data)
        {
            $this->collect();
        }
        return $this->data;
    }
    function get_data_for_form()
    {
        return base64_encode(serialize($this->get_data_raw()));
    }
    /**
    * Collect info into the data property.
    *
    * @return    null
    */
    function collect()
    {
        foreach (array_keys($this->providers) as $key)
        {
            $provider = $this->providers[$key];
            $this->data[$provider->get_identifier()] = $provider->get_data();
        }
        $this->data['install_id'] = $this->install_id;
    }
}
/** interface: get_indentifier(), get_data() */
/**
* Questionnaire PHP data provider
*/
class phpbb_questionnaire_php_data_provider
{
    function get_identifier()
    {
        return 'PHP';
    }
    /**
    * Get data about the PHP runtime setup.
    *
    * @return    array
    */
    function get_data()
    {
        return array(
            'version'                        => PHP_VERSION,
            'sapi'                            => PHP_SAPI,
            'int_size'                        => defined('PHP_INT_SIZE') ? PHP_INT_SIZE : '',
            'safe_mode'                        => (int) @ini_get('safe_mode'),
            'open_basedir'                    => (int) @ini_get('open_basedir'),
            'memory_limit'                    => @ini_get('memory_limit'),
            'allow_url_fopen'                => (int) @ini_get('allow_url_fopen'),
            'allow_url_include'                => (int) @ini_get('allow_url_include'),
            'file_uploads'                    => (int) @ini_get('file_uploads'),
            'upload_max_filesize'            => @ini_get('upload_max_filesize'),
            'post_max_size'                    => @ini_get('post_max_size'),
            'disable_functions'                => @ini_get('disable_functions'),
            'disable_classes'                => @ini_get('disable_classes'),
            'enable_dl'                        => (int) @ini_get('enable_dl'),
            'magic_quotes_gpc'                => (int) @ini_get('magic_quotes_gpc'),
            'register_globals'                => (int) @ini_get('register_globals'),
            'filter.default'                => @ini_get('filter.default'),
            'zend.ze1_compatibility_mode'    => (int) @ini_get('zend.ze1_compatibility_mode'),
            'unicode.semantics'                => (int) @ini_get('unicode.semantics'),
            'zend_thread_safty'                => (int) function_exists('zend_thread_id'),
            'extensions'                    => get_loaded_extensions(),
        );
    }
}
/**
* Questionnaire System data provider
*/
class phpbb_questionnaire_system_data_provider
{
    function get_identifier()
    {
        return 'System';
    }
    /**
    * Get data about the general system information, like OS or IP (shortened).
    *
    * @return    array
    */
    function get_data()
    {
        global $request;
        // Start discovering the IPV4 server address, if available
        // Try apache, IIS, fall back to 0.0.0.0
        $server_address = htmlspecialchars_decode($request->server('SERVER_ADDR', $request->server('LOCAL_ADDR', '0.0.0.0')));
        return array(
            'os'    => PHP_OS,
            'httpd'    => htmlspecialchars_decode($request->server('SERVER_SOFTWARE')),
            // we don't want the real IP address (for privacy policy reasons) but only
            // a network address to see whether your installation is running on a private or public network.
            'private_ip'    => $this->is_private_ip($server_address),
            'ipv6'            => strpos($server_address, ':') !== false,
        );
    }
    /**
    * Checks whether the given IP is in a private network.
    *
    * @param    string    $ip    IP in v4 dot-decimal or v6 hex format
    * @return    bool        true if the IP is from a private network, else false
    */
    function is_private_ip($ip)
    {
        // IPv4
        if (strpos($ip, ':') === false)
        {
            $ip_address_ary = explode('.', $ip);
            // build ip
            if (!isset($ip_address_ary[0]) || !isset($ip_address_ary[1]))
            {
                $ip_address_ary = explode('.', '0.0.0.0');
            }
            // IANA reserved addresses for private networks (RFC 1918) are:
            // - 10.0.0.0/8
            // - 172.16.0.0/12
            // - 192.168.0.0/16
            if ($ip_address_ary[0] == '10' ||
                ($ip_address_ary[0] == '172' && intval($ip_address_ary[1]) > 15 && intval($ip_address_ary[1]) < 32) ||
                ($ip_address_ary[0] == '192' && $ip_address_ary[1] == '168'))
            {
                return true;
            }
        }
        // IPv6
        else
        {
            // unique local unicast
            $prefix = substr($ip, 0, 2);
            if ($prefix == 'fc' || $prefix == 'fd')
            {
                return true;
            }
        }
        return false;
    }
}
/**
* Questionnaire phpBB data provider
*/
class phpbb_questionnaire_phpbb_data_provider
{
    var $config;
    var $unique_id;
    /**
    * Constructor.
    *
    * @param    array    $config
    */
    function __construct($config)
    {
        // generate a unique id if necessary
        if (empty($config['questionnaire_unique_id']))
        {
            $this->unique_id = unique_id();
            $config->set('questionnaire_unique_id', $this->unique_id);
        }
        else
        {
            $this->unique_id = $config['questionnaire_unique_id'];
        }
        $this->config = $config;
    }
    /**
    * Returns a string identifier for this data provider
    *
    * @return    string    "phpBB"
    */
    function get_identifier()
    {
        return 'phpBB';
    }
    /**
    * Get data about this phpBB installation.
    *
    * @return    array    Relevant anonymous config options
    */
    function get_data()
    {
        global $phpbb_config_php_file;
        extract($phpbb_config_php_file->get_all());
        unset($dbhost, $dbport, $dbname, $dbuser, $dbpasswd); // Just a precaution
        $dbms = $phpbb_config_php_file->convert_30_dbms_to_31($dbms);
        // Only send certain config vars
        $config_vars = array(
            'active_sessions' => true,
            'allow_attachments' => true,
            'allow_autologin' => true,
            'allow_avatar' => true,
            'allow_avatar_local' => true,
            'allow_avatar_remote' => true,
            'allow_avatar_upload' => true,
            'allow_bbcode' => true,
            'allow_birthdays' => true,
            'allow_bookmarks' => true,
            'allow_emailreuse' => true,
            'allow_forum_notify' => true,
            'allow_mass_pm' => true,
            'allow_name_chars' => true,
            'allow_namechange' => true,
            'allow_nocensors' => true,
            'allow_pm_attach' => true,
            'allow_pm_report' => true,
            'allow_post_flash' => true,
            'allow_post_links' => true,
            'allow_privmsg' => true,
            'allow_quick_reply' => true,
            'allow_sig' => true,
            'allow_sig_bbcode' => true,
            'allow_sig_flash' => true,
            'allow_sig_img' => true,
            'allow_sig_links' => true,
            'allow_sig_pm' => true,
            'allow_sig_smilies' => true,
            'allow_smilies' => true,
            'allow_topic_notify' => true,
            'attachment_quota' => true,
            'auth_bbcode_pm' => true,
            'auth_flash_pm' => true,
            'auth_img_pm' => true,
            'auth_method' => true,
            'auth_smilies_pm' => true,
            'avatar_filesize' => true,
            'avatar_max_height' => true,
            'avatar_max_width' => true,
            'avatar_min_height' => true,
            'avatar_min_width' => true,
            'board_email_form' => true,
            'board_hide_emails' => true,
            'board_timezone' => true,
            'browser_check' => true,
            'bump_interval' => true,
            'bump_type' => true,
            'cache_gc' => true,
            'captcha_plugin' => true,
            'captcha_gd' => true,
            'captcha_gd_foreground_noise' => true,
            'captcha_gd_x_grid' => true,
            'captcha_gd_y_grid' => true,
            'captcha_gd_wave' => true,
            'captcha_gd_3d_noise' => true,
            'captcha_gd_fonts' => true,
            'confirm_refresh' => true,
            'check_attachment_content' => true,
            'check_dnsbl' => true,
            'chg_passforce' => true,
            'cookie_secure' => true,
            'coppa_enable' => true,
            'database_gc' => true,
            'dbms_version' => true,
            'default_dateformat' => true,
            'default_lang' => true,
            'display_last_edited' => true,
            'display_order' => true,
            'edit_time' => true,
            'email_check_mx' => true,
            'email_enable' => true,
            'email_force_sender' => true,
            'email_package_size' => true,
            'enable_confirm' => true,
            'enable_pm_icons' => true,
            'enable_post_confirm' => true,
            'feed_enable' => true,
            'feed_http_auth' => true,
            'feed_limit_post' => true,
            'feed_limit_topic' => true,
            'feed_overall' => true,
            'feed_overall_forums' => true,
            'feed_forum' => true,
            'feed_topic' => true,
            'feed_topics_new' => true,
            'feed_topics_active' => true,
            'feed_item_statistics' => true,
            'flood_interval' => true,
            'force_server_vars' => true,
            'form_token_lifetime' => true,
            'form_token_mintime' => true,
            'form_token_sid_guests' => true,
            'forward_pm' => true,
            'forwarded_for_check' => true,
            'full_folder_action' => true,
            'fulltext_native_common_thres' => true,
            'fulltext_native_load_upd' => true,
            'fulltext_native_max_chars' => true,
            'fulltext_native_min_chars' => true,
            'gzip_compress' => true,
            'hot_threshold' => true,
            'img_create_thumbnail' => true,
            'img_display_inlined' => true,
            'img_link_height' => true,
            'img_link_width' => true,
            'img_max_height' => true,
            'img_max_thumb_width' => true,
            'img_max_width' => true,
            'img_min_thumb_filesize' => true,
            'ip_check' => true,
            'jab_enable' => true,
            'jab_package_size' => true,
            'jab_use_ssl' => true,
            'limit_load' => true,
            'limit_search_load' => true,
            'load_anon_lastread' => true,
            'load_birthdays' => true,
            'load_cpf_memberlist' => true,
            'load_cpf_viewprofile' => true,
            'load_cpf_viewtopic' => true,
            'load_db_lastread' => true,
            'load_db_track' => true,
            'load_jumpbox' => true,
            'load_moderators' => true,
            'load_online' => true,
            'load_online_guests' => true,
            'load_online_time' => true,
            'load_onlinetrack' => true,
            'load_search' => true,
            'load_tplcompile' => true,
            'load_user_activity' => true,
            'max_attachments' => true,
            'max_attachments_pm' => true,
            'max_autologin_time' => true,
            'max_filesize' => true,
            'max_filesize_pm' => true,
            'max_login_attempts' => true,
            'max_name_chars' => true,
            'max_num_search_keywords' => true,
            'max_pass_chars' => true,
            'max_poll_options' => true,
            'max_post_chars' => true,
            'max_post_font_size' => true,
            'max_post_img_height' => true,
            'max_post_img_width' => true,
            'max_post_smilies' => true,
            'max_post_urls' => true,
            'max_quote_depth' => true,
            'max_reg_attempts' => true,
            'max_sig_chars' => true,
            'max_sig_font_size' => true,
            'max_sig_img_height' => true,
            'max_sig_img_width' => true,
            'max_sig_smilies' => true,
            'max_sig_urls' => true,
            'min_name_chars' => true,
            'min_pass_chars' => true,
            'min_post_chars' => true,
            'min_search_author_chars' => true,
            'mime_triggers' => true,
            'new_member_post_limit' => true,
            'new_member_group_default' => true,
            'override_user_style' => true,
            'pass_complex' => true,
            'pm_edit_time' => true,
            'pm_max_boxes' => true,
            'pm_max_msgs' => true,
            'pm_max_recipients' => true,
            'posts_per_page' => true,
            'print_pm' => true,
            'queue_interval' => true,
            'require_activation' => true,
            'referer_validation' => true,
            'search_block_size' => true,
            'search_gc' => true,
            'search_interval' => true,
            'search_anonymous_interval' => true,
            'search_type' => true,
            'search_store_results' => true,
            'secure_allow_deny' => true,
            'secure_allow_empty_referer' => true,
            'secure_downloads' => true,
            'session_gc' => true,
            'session_length' => true,
            'smtp_auth_method' => true,
            'smtp_delivery' => true,
            'topics_per_page' => true,
            'tpl_allow_php' => true,
            'version' => true,
            'warnings_expire_days' => true,
            'warnings_gc' => true,
            'num_files' => true,
            'num_posts' => true,
            'num_topics' => true,
            'num_users' => true,
            'record_online_users' => true,
        );
        $result = array();
        foreach ($config_vars as $name => $void)
        {
            if (isset($this->config[$name]))
            {
                $result['config_' . $name] = $this->config[$name];
            }
        }
        global $db, $request;
        $result['dbms'] = $dbms;
        $result['acm_type'] = $acm_type;
        $result['user_agent'] = 'Unknown';
        $result['dbms_version'] = $db->sql_server_info(true);
        // Try to get user agent vendor and version
        $match = array();
        $user_agent = $request->header('User-Agent');
        $agents = array('firefox', 'msie', 'opera', 'chrome', 'safari', 'mozilla', 'seamonkey', 'konqueror', 'netscape', 'gecko', 'navigator', 'mosaic', 'lynx', 'amaya', 'omniweb', 'avant', 'camino', 'flock', 'aol');
        // We check here 1 by 1 because some strings occur after others (for example Mozilla [...] Firefox/)
        foreach ($agents as $agent)
        {
            if (preg_match('#(' . $agent . ')[/ ]?([0-9.]*)#i', $user_agent, $match))
            {
                $result['user_agent'] = $match[1] . ' ' . $match[2];
                break;
            }
        }
        return $result;
    }
}