+<?php

+/**

+*

+* @package Ultimate SEO URL phpBB SEO

+* @version $Id: phpbb_seo_class_light.php 264 2010-06-02 07:13:08Z dcz $

+* @copyright (c) 2006 - 2010 www.phpbb-seo.com

+* @license http://www.opensource.org/licenses/rpl1.5.txt Reciprocal Public License 1.5

+*

+*/

+/**

+* @ignore

+*/

+if (!defined('IN_PHPBB')) {

+ exit;

+}

+/**

+* phpBB_SEO Class lite

+* For Compatibility with the phpBB SEO mod rewrites

+* www.phpBB-SEO.com

+* @package phpBB SEO

+*/

+//

+

+class phpbb_seo {

+ var $modrtype = -1;

+ var $seo_path = array();

+ var $seo_url = array( 'forum' => array(), 'topic' => array(), 'user' => array(), 'username' => array(), 'group' => array(), 'file' => array() );

+ var $seo_delim = array( 'forum' => '-f', 'topic' => '-t', 'user' => '-u', 'group' => '-g', 'start' => '-', 'sr' => '-', 'file' => '/');

+ var $seo_ext = array( 'forum' => '.html', 'topic' => '.html', 'post' => '.html', 'user' => '.html', 'group' => '.html', 'index' => '', 'global_announce' => '/', 'leaders' => '.html', 'atopic' => '.html', 'utopic' => '.html', 'npost' => '.html', 'pagination' => '.html', 'gz_ext' => '');

+ var $seo_static = array( 'forum' => 'forum', 'topic' => 'topic', 'post' => 'post', 'user' => 'member', 'group' => 'group', 'index' => '', 'global_announce' => 'announces', 'leaders' => 'the-team', 'atopic' => 'active-topics', 'utopic' => 'unanswered', 'npost' => 'newposts', 'pagination' => 'page', 'gz_ext' => '.gz' );

+ var $seo_opt = array();

+ var $seo_cache = array();

+ var $RegEx = array();

+ var $sftpl = array();

+ var $url_replace = array();

+ var $ssl = array('requested' => false, 'forced' => false);

+ var $light = true;

+ /**

+ * constuctor

+ */

+ function phpbb_seo() {

+ global $config, $phpEx;

+ // fix for an interesting bug with parse_str http://bugs.php.net/bug.php?id=48697

+ // and apparently, the bug is still here in php5.3

+ @ini_set("mbstring.internal_encoding", 'UTF-8');

+ // URL Settings

+ $this->seo_opt = array(

+ 'profile_inj' => false,

+ 'rem_small_words' => false,

+ 'virtual_folder' => false,

+ 'virtual_root' => false,

+ );

+ // --> DOMAIN SETTING <-- //

+ // SSL, beware with cookie secure, it won't force ssl here,

+ // so you will need to switch to ssl for your user to use cookie based session (no sid)

+ // could be done by using an https link to login form (or within the redirect after login)

+ $this->ssl['requested'] = (bool) ((isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'] === 'on' || $_SERVER['HTTPS'] === true)) || (isset($_SERVER['SERVER_PORT']) && (int) $_SERVER['SERVER_PORT'] === 443));

+ $this->ssl['forced'] = (bool) (($config['server_protocol'] === 'https//'));

+ $this->ssl['use'] = (bool) ($this->ssl['requested'] || $this->ssl['forced']);

+ // Server Settings, rely on DB

+ $server_protocol = $this->ssl['use'] ? 'https://' : 'http://';

+ $server_name = trim($config['server_name'], '/ ');

+ $server_port = max(0, (int) $config['server_port']);

+ $server_port = ($server_port && $server_port <> 80) ? ':' . $server_port : '';

+ $script_path = trim($config['script_path'], '/ ');

+ $script_path = (empty($script_path) ) ? '' : $script_path . '/';

+ $this->seo_path['root_url'] = utf8_strtolower($server_protocol . $server_name . $server_port . '/');

+ $this->seo_path['phpbb_urlR'] = $this->seo_path['phpbb_url'] = $this->seo_path['root_url'] . $script_path;

+ $this->seo_path['phpbb_script'] = $script_path;

+ $this->seo_path['canonical'] = '';

+ // File setting

+ $this->seo_req_uri();

+ $this->seo_opt['seo_base_href'] = $this->seo_opt['req_file'] = $this->seo_opt['req_self'] = '';

+ if ($script_name = (!empty($_SERVER['PHP_SELF'])) ? $_SERVER['PHP_SELF'] : getenv('PHP_SELF')) {

+ // From session.php

+ // Replace backslashes and doubled slashes (could happen on some proxy setups)

+ $this->seo_opt['req_self'] = str_replace(array('\\', '//'), '/', $script_name);

+ // basenamed page name (for example: index)

+ $this->seo_opt['req_file'] = urlencode(htmlspecialchars(str_replace(".$phpEx", '', basename($this->seo_opt['req_self']))));

+ }

+ // see if we have some custom replacement

+ if (!empty($this->url_replace)) {

+ $this->url_replace = array(

+ 'find' => array_keys($this->url_replace),

+ 'replace' => array_values($this->url_replace)

+ );

+ }

+ // preg_replace() patterns for format_url()

+ // One could want to add |th|horn after |slash, but I'm not sure that Þ should be replaced with t and Ð with e

+ $this->RegEx['url_find'] = array('`&([a-z]+)(acute|grave|circ|cedil|tilde|uml|lig|ring|caron|slash);`i', '`&(amp;)?[^;]+;`i', '`[^a-z0-9]`i'); // Do not remove : deaccentuation, html/xml entities & non a-z chars

+ $this->RegEx['url_replace'] = array('\1', '-', '-');

+ if ($this->seo_opt['rem_small_words']) {

+ $this->RegEx['url_find'][] = '`(^|-)[a-z0-9]{1,2}(?=-|$)`i';

+ $this->RegEx['url_replace'][] = '-';

+ }

+ $this->RegEx['url_find'][] ='`[-]+`'; // Do not remove : multi hyphen reduction

+ $this->RegEx['url_replace'][] = '-';

+ // $1 parent : string/

+ // $2 title / url : topic-title / forum-url-fxx

+ // $3 id

+ $this->sftpl = array(

+ 'topic' => ($this->seo_opt['virtual_folder'] ? '%1$s/' : '') . '%2$s' . $this->seo_delim['topic'] . '%3$s',

+ 'topic_smpl' => ($this->seo_opt['virtual_folder'] ? '%1$s/' : '') . $this->seo_static['topic'] . '%3$s',

+ 'forum' => $this->modrtype >= 2 ? '%2$s' : $this->seo_static['forum'] . '%3$s',

+ 'group' => $this->seo_opt['profile_inj'] ? '%2$s' . $this->seo_delim['group'] . '%3$s' : $this->seo_static['group'] . '%3$s',

+ );

+ return;

+ }

+ // --> Gen stats

+ /**

+ * Returns microtime

+ * Borrowed from php.net

+ */

+ function microtime_float() {

+ return array_sum(explode(' ', microtime()));

+ }

+ // --> URL rewriting functions <--

+ /**

+ * format_url( $url, $type = 'topic' )

+ * Prepare Titles for URL injection

+ */

+ function format_url( $url, $type = 'topic' ) {

+ $url = preg_replace('`\[.*\]`U','',$url);

+ if (isset($this->url_replace['find'])) {

+ $url = str_replace($this->url_replace['find'], $this->url_replace['replace'], $url);

+ }

+ $url = htmlentities($url, ENT_COMPAT, 'UTF-8');

+ $url = preg_replace($this->RegEx['url_find'] , $this->RegEx['url_replace'], $url);

+ $url = strtolower(trim($url, '-'));

+ return empty($url) ? $type : $url;

+ }

+ /**

+ * set_url( $url, $id = 0, $type = 'forum', $parent = '' )

+ * Prepare url first part and checks cache

+ */

+ function set_url( $url, $id = 0, $type = 'forum', $parent = '') {

+ if ( empty($this->seo_url[$type][$id]) ) {

+ return ( $this->seo_url[$type][$id] = !empty($this->cache_config[$type][$id]) ? $this->cache_config[$type][$id] : sprintf($this->sftpl[$type], $parent, $this->format_url($url, $this->seo_static[$type]) . $this->seo_delim[$type] . $id, $id) );

+ }

+ return $this->seo_url[$type][$id];

+ }

+ /**

+ * prepare_url( $type, $title, $id, $parent = '', $smpl = false )

+ * Prepare url first part

+ */

+ function prepare_url( $type, $title, $id, $parent = '', $smpl = false ) {

+ return empty($this->seo_url[$type][$id]) ? ($this->seo_url[$type][$id] = sprintf($this->sftpl[$type . ($smpl ? '_smpl' : '')], $parent, !$smpl ? $this->format_url($title, $this->seo_static[$type]) : '', $id)) : $this->seo_url[$type][$id];

+ }

+ /**

+ * set_title( $type, $title, $id, $parent = '' )

+ * Set title for url injection

+ */

+ function set_title( $type, $title, $id, $parent = '' ) {

+ return empty($this->seo_url[$type][$id]) ? ($this->seo_url[$type][$id] = ($parent ? $parent . '/' : '') . $this->format_url($title, $this->seo_static[$type])) : $this->seo_url[$type][$id];

+ }

+ /**

+ * prepare_iurl( $data, $type, $parent = '' )

+ * Prepare url first part (not for forums) with SQL based URL rewriting

+ */

+ function prepare_iurl( $data, $type, $parent = '' ) {

+ $id = max(0, (int) $data[$type . '_id']);

+ if ( empty($this->seo_url[$type][$id]) ) {

+ if (!empty($data[$type . '_url'])) {

+ return ($this->seo_url[$type][$id] = $data[$type . '_url'] . $id);

+ } else {

+ return ($this->seo_url[$type][$id] = sprintf($this->sftpl[$type . ($this->modrtype > 2 ? '' : '_smpl')], $parent, $this->modrtype > 2 ? $this->format_url($data[$type . '_title'], $this->seo_static[$type]) : '', $id));

+ }

+ }

+ return $this->seo_url[$type][$id];

+ }

+ /**

+ * drop_sid( $url )

+ * drop the sid's in url

+ */

+ function drop_sid( $url ) {

+ return (strpos($url, 'sid=') !== false) ? trim(preg_replace(array('`&(amp;)?sid=[a-z0-9]*(&amp;|&)?`', '`(\?)sid=[a-z0-9]*`'), array('\2', '\1'), $url), '?') : $url;

+ }

+ /**

+ * set_user_url( $username, $user_id = 0 )

+ * Prepare profile url

+ */

+ function set_user_url( $username, $user_id = 0 ) {

+ if (empty($this->seo_url['user'][$user_id])) {

+ $username = strip_tags($username);

+ $this->seo_url['username'][$username] = $user_id;

+ if ( $this->seo_opt['profile_inj'] ) {

+ if ( $this->seo_opt['profile_noids'] ) {

+ $this->seo_url['user'][$user_id] = $this->seo_static['user'] . '/' . $this->seo_url_encode($username);

+ } else {

+ $this->seo_url['user'][$user_id] = $this->format_url($username, $this->seo_delim['user']) . $this->seo_delim['user'] . $user_id;

+ }

+ } else {

+ $this->seo_url['user'][$user_id] = $this->seo_static['user'] . $user_id;

+ }

+ }

+ }

+ /**

+ * seo_url_encode( $url )

+ * custom urlencoding

+ */

+ function seo_url_encode( $url ) {

+ // can be faster to return $url directly if you do not allow more chars than

+ // [a-zA-Z0-9_\.-] in your usernames

+ // return $url;

+ // Here we hanlde the "&", "/", "+" and "#" case proper ( http://www.php.net/urlencode => http://issues.apache.org/bugzilla/show_bug.cgi?id=34602 )

+ static $find = array('&', '/', '#', '+');

+ static $replace = array('%26', '%2F', '%23', '%2b');

+ return rawurlencode(str_replace( $find, $replace, utf8_normalize_nfc(htmlspecialchars_decode(str_replace('&amp;amp;', '%26', rawurldecode($url))))));

+ }

+ /**

+ * Returns the full REQUEST_URI

+ */

+ function seo_req_uri() {

+ if ( !empty($_SERVER['HTTP_X_REWRITE_URL']) ) { // IIS isapi_rewrite

+ $this->seo_path['uri'] = ltrim($_SERVER['HTTP_X_REWRITE_URL'], '/');

+ } elseif ( !empty($_SERVER['REQUEST_URI']) ) { // Apache mod_rewrite

+ $this->seo_path['uri'] = ltrim($_SERVER['REQUEST_URI'], '/');

+ } else { // no mod rewrite

+ $this->seo_path['uri'] = ltrim($_SERVER['SCRIPT_NAME'], '/') . ( ( !empty($_SERVER['QUERY_STRING']) ) ? '?'.$_SERVER['QUERY_STRING'] : '' );

+ }

+ $this->seo_path['uri'] = str_replace( '%26', '&', rawurldecode($this->seo_path['uri']));

+ // workaround for FF default iso encoding

+ if (!$this->is_utf8($this->seo_path['uri'])) {

+ $this->seo_path['uri'] = utf8_normalize_nfc(utf8_recode($this->seo_path['uri'], 'iso-8859-1'));

+ }

+ $this->seo_path['uri'] = $this->seo_path['root_url'] . $this->seo_path['uri'];

+ return $this->seo_path['uri'];

+ }

+ /**

+ * sslify($url, $ssl = true, $proto_check = true)

+ * properly set http protocol (eg http or https)

+ * if no protocol is specified, will return false with $proto_check set to true

+ */

+ function sslify($url, $ssl = true, $proto_check = true) {

+ static $mask = '`^https?://`i';

+ $url = trim($url);

+ if ($url && preg_match($mask, $url)) {

+ $replace = $ssl ? 'https://' : 'http://';

+ return preg_replace($mask, $replace, $url);

+ }

+ return $proto_check ? false : $url;

+ }

+ /**

+ * is_utf8($string)

+ * Borrowed from php.net : http://www.php.net/mb_detect_encoding (detectUTF8)

+ */

+ function is_utf8($string) {

+ // non-overlong 2-byte|excluding overlongs|straight 3-byte|excluding surrogates|planes 1-3|planes 4-15|plane 16

+ return preg_match('%(?:[\xC2-\xDF][\x80-\xBF]|\xE0[\xA0-\xBF][\x80-\xBF]|[\xE1-\xEC\xEE\xEF][\x80-\xBF]{2}|\xED[\x80-\x9F][\x80-\xBF] |\xF0[\x90-\xBF][\x80-\xBF]{2}|[\xF1-\xF3][\x80-\xBF]{3}|\xF4[\x80-\x8F][\x80-\xBF]{2})+%xs', $string);

+ }

+}

+?> \ No newline at end of file