121 lines
4.8 KiB
PHP
121 lines
4.8 KiB
PHP
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<?php
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/**
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* [Discuz!] (C)2001-2099 Comsenz Inc.
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* This is NOT a freeware, use is subject to license terms
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*
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* $Id: helper_seo.php 36278 2016-12-09 07:52:35Z nemohou $
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*/
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if(!defined('IN_DISCUZ')) {
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exit('Access Denied');
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}
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class helper_seo {
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public static function get_seosetting($page, $data = array(), $defset = array()) {
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global $_G;
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$searchs = array('{bbname}');
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$replaces = array($_G['setting']['bbname']);
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$seotitle = $seodescription = $seokeywords = '';
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$titletext = $defset['seotitle'] ? $defset['seotitle'] : $_G['setting']['seotitle'][$page];
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$descriptiontext = $defset['seodescription'] ? $defset['seodescription'] : $_G['setting']['seodescription'][$page];
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$keywordstext = $defset['seokeywords'] ? $defset['seokeywords'] : $_G['setting']['seokeywords'][$page];
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preg_match_all("/\{([a-z0-9_-]+?)\}/", $titletext.$descriptiontext.$keywordstext, $pageparams);
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if($pageparams) {
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foreach($pageparams[1] as $var) {
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$searchs[] = '{'.$var.'}';
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if($var == 'page') {
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$data['page'] = $data['page'] > 1 ? lang('core', 'page', array('page' => $data['page'])) : '';
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}
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$replaces[] = $data[$var] ? strip_tags($data[$var]) : '';
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}
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if($titletext) {
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$seotitle = helper_seo::strreplace_strip_split($searchs, $replaces, $titletext);
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}
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if($descriptiontext && (isset($_G['makehtml']) || CURSCRIPT == 'forum' || IS_ROBOT || $_G['adminid'] == 1)) {
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$seodescription = helper_seo::strreplace_strip_split($searchs, $replaces, $descriptiontext);
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}
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if($keywordstext && (isset($_G['makehtml']) || CURSCRIPT == 'forum' || IS_ROBOT || $_G['adminid'] == 1)) {
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$seokeywords = helper_seo::strreplace_strip_split($searchs, $replaces, $keywordstext);
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}
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}
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return array($seotitle, $seodescription, $seokeywords);
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}
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public static function strreplace_strip_split($searchs, $replaces, $str) {
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$searchspace = array('((\s*\-\s*)+)', '((\s*\,\s*)+)', '((\s*\|\s*)+)', '((\s*\t\s*)+)', '((\s*_\s*)+)');
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$replacespace = array('-', ',', '|', ' ', '_');
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return trim(preg_replace($searchspace, $replacespace, str_replace($searchs, $replaces, $str)), ' ,-|_');
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}
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public static function get_title_page($navtitle, $page){
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if($page > 1) {
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$navtitle .= ' - '.lang('core', 'page', array('page' => $page));
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}
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return $navtitle;
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}
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public static function get_related_link($extent) {
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global $_G;
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loadcache('relatedlink');
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$allextent = array('article' => 0, 'forum' => 1, 'group' => 2, 'blog' => 3);
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$links = array();
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if($_G['cache']['relatedlink'] && isset($allextent[$extent])) {
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foreach($_G['cache']['relatedlink'] as $link) {
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$link['extent'] = sprintf('%04b', $link['extent']);
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if($link['extent'][$allextent[$extent]] && $link['name'] && $link['url']) {
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$links[] = daddslashes($link);
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}
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}
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}
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rsort($links);
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return $links;
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}
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public static function parse_related_link($content, $extent) {
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global $_G;
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loadcache('relatedlink');
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$allextent = array('article' => 0, 'forum' => 1, 'group' => 2, 'blog' => 3);
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if($_G['cache']['relatedlink'] && isset($allextent[$extent])) {
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$searcharray = $replacearray = array();
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foreach($_G['cache']['relatedlink'] as $link) {
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$link['extent'] = sprintf('%04b', $link['extent']);
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if($link['extent'][$allextent[$extent]] && $link['name'] && $link['url']) {
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$searcharray[$link[name]] = '/('.preg_quote($link['name']).')/i';
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$replacearray[$link[name]] = "<a href=\"$link[url]\" target=\"_blank\" class=\"relatedlink\">$link[name]</a>";
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}
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}
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if($searcharray && $replacearray) {
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$_G['trunsform_tmp'] = array();
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$content = preg_replace_callback("/(<script\s+.*?>.*?<\/script>)|(<a\s+.*?>.*?<\/a>)|(<img\s+.*?[\/]?>)|(\[attach\](\d+)\[\/attach\])/is", array(__CLASS__, 'parse_related_link_callback_base64_transform_1234'), $content);
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$content = preg_replace($searcharray, $replacearray, $content, 1);
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$content = preg_replace_callback("/<relatedlink>(.*?)<\/relatedlink>/is", array(__CLASS__, 'parse_related_link_callback_base64_transform_1'), $content);
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}
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}
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return $content;
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}
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static public function parse_related_link_callback_base64_transform_1234($matches) {
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return self::base64_transform('encode', '<relatedlink>', $matches[1].$matches[2].$matches[3].$matches[4], '</relatedlink>');
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}
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static function parse_related_link_callback_base64_transform_1($matches) {
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return self::base64_transform('decode', '', $matches[1], '');
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}
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public static function base64_transform($type, $prefix, $string, $suffix) {
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global $_G;
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if($type == 'encode') {
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$_G['trunsform_tmp'][] = base64_encode(str_replace("\\\"", "\"", $string));
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return $prefix.(count($_G['trunsform_tmp']) - 1).$suffix;
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} elseif($type == 'decode') {
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return $prefix.base64_decode($_G['trunsform_tmp'][$string]).$suffix;
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}
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}
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}
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?>
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