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-rw-r--r--lib/dokuwiki/inc/parser/metadata.php483
1 files changed, 483 insertions, 0 deletions
diff --git a/lib/dokuwiki/inc/parser/metadata.php b/lib/dokuwiki/inc/parser/metadata.php
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index 000000000..fc60e5774
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+++ b/lib/dokuwiki/inc/parser/metadata.php
@@ -0,0 +1,483 @@
+<?php
+/**
+ * Renderer for metadata
+ *
+ * @author Esther Brunner <wikidesign@gmail.com>
+ */
+if(!defined('DOKU_INC')) die('meh.');
+
+if ( !defined('DOKU_LF') ) {
+ // Some whitespace to help View > Source
+ define ('DOKU_LF',"\n");
+}
+
+if ( !defined('DOKU_TAB') ) {
+ // Some whitespace to help View > Source
+ define ('DOKU_TAB',"\t");
+}
+
+require_once DOKU_INC . 'inc/parser/renderer.php';
+
+/**
+ * The Renderer
+ */
+class Doku_Renderer_metadata extends Doku_Renderer {
+
+ var $doc = '';
+ var $meta = array();
+ var $persistent = array();
+
+ var $headers = array();
+ var $capture = true;
+ var $store = '';
+ var $firstimage = '';
+
+ function getFormat(){
+ return 'metadata';
+ }
+
+ function document_start(){
+ global $ID;
+
+ $this->headers = array();
+
+ // external pages are missing create date
+ if(!$this->persistent['date']['created']){
+ $this->persistent['date']['created'] = filectime(wikiFN($ID));
+ }
+ if(!isset($this->persistent['creator'])){
+ $this->persistent['creator'] = '';
+ }
+ // reset metadata to persistent values
+ $this->meta = $this->persistent;
+ }
+
+ function document_end(){
+ global $ID;
+
+ // store internal info in metadata (notoc,nocache)
+ $this->meta['internal'] = $this->info;
+
+ if (!isset($this->meta['description']['abstract'])){
+ // cut off too long abstracts
+ $this->doc = trim($this->doc);
+ if (strlen($this->doc) > 500)
+ $this->doc = utf8_substr($this->doc, 0, 500).'…';
+ $this->meta['description']['abstract'] = $this->doc;
+ }
+
+ $this->meta['relation']['firstimage'] = $this->firstimage;
+
+ if(!isset($this->meta['date']['modified'])){
+ $this->meta['date']['modified'] = filemtime(wikiFN($ID));
+ }
+
+ }
+
+ function toc_additem($id, $text, $level) {
+ global $conf;
+
+ //only add items within configured levels
+ if($level >= $conf['toptoclevel'] && $level <= $conf['maxtoclevel']){
+ // the TOC is one of our standard ul list arrays ;-)
+ $this->meta['description']['tableofcontents'][] = array(
+ 'hid' => $id,
+ 'title' => $text,
+ 'type' => 'ul',
+ 'level' => $level-$conf['toptoclevel']+1
+ );
+ }
+
+ }
+
+ function header($text, $level, $pos) {
+ if (!isset($this->meta['title'])) $this->meta['title'] = $text;
+
+ // add the header to the TOC
+ $hid = $this->_headerToLink($text,'true');
+ $this->toc_additem($hid, $text, $level);
+
+ // add to summary
+ if ($this->capture && ($level > 1)) $this->doc .= DOKU_LF.$text.DOKU_LF;
+ }
+
+ function section_open($level){}
+ function section_close(){}
+
+ function cdata($text){
+ if ($this->capture) $this->doc .= $text;
+ }
+
+ function p_open(){
+ if ($this->capture) $this->doc .= DOKU_LF;
+ }
+
+ function p_close(){
+ if ($this->capture){
+ if (strlen($this->doc) > 250) $this->capture = false;
+ else $this->doc .= DOKU_LF;
+ }
+ }
+
+ function linebreak(){
+ if ($this->capture) $this->doc .= DOKU_LF;
+ }
+
+ function hr(){
+ if ($this->capture){
+ if (strlen($this->doc) > 250) $this->capture = false;
+ else $this->doc .= DOKU_LF.'----------'.DOKU_LF;
+ }
+ }
+
+ function strong_open(){}
+ function strong_close(){}
+
+ function emphasis_open(){}
+ function emphasis_close(){}
+
+ function underline_open(){}
+ function underline_close(){}
+
+ function monospace_open(){}
+ function monospace_close(){}
+
+ function subscript_open(){}
+ function subscript_close(){}
+
+ function superscript_open(){}
+ function superscript_close(){}
+
+ function deleted_open(){}
+ function deleted_close(){}
+
+ /**
+ * Callback for footnote start syntax
+ *
+ * All following content will go to the footnote instead of
+ * the document. To achieve this the previous rendered content
+ * is moved to $store and $doc is cleared
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+ function footnote_open() {
+ if ($this->capture){
+ // move current content to store and record footnote
+ $this->store = $this->doc;
+ $this->doc = '';
+ }
+ }
+
+ /**
+ * Callback for footnote end syntax
+ *
+ * All rendered content is moved to the $footnotes array and the old
+ * content is restored from $store again
+ *
+ * @author Andreas Gohr
+ */
+ function footnote_close() {
+ if ($this->capture){
+ // restore old content
+ $this->doc = $this->store;
+ $this->store = '';
+ }
+ }
+
+ function listu_open(){
+ if ($this->capture) $this->doc .= DOKU_LF;
+ }
+
+ function listu_close(){
+ if ($this->capture && (strlen($this->doc) > 250)) $this->capture = false;
+ }
+
+ function listo_open(){
+ if ($this->capture) $this->doc .= DOKU_LF;
+ }
+
+ function listo_close(){
+ if ($this->capture && (strlen($this->doc) > 250)) $this->capture = false;
+ }
+
+ function listitem_open($level){
+ if ($this->capture) $this->doc .= str_repeat(DOKU_TAB, $level).'* ';
+ }
+
+ function listitem_close(){
+ if ($this->capture) $this->doc .= DOKU_LF;
+ }
+
+ function listcontent_open(){}
+ function listcontent_close(){}
+
+ function unformatted($text){
+ if ($this->capture) $this->doc .= $text;
+ }
+
+ function php($text){}
+
+ function phpblock($text){}
+
+ function html($text){}
+
+ function htmlblock($text){}
+
+ function preformatted($text){
+ if ($this->capture) $this->doc .= $text;
+ }
+
+ function file($text, $lang = null, $file = null){
+ if ($this->capture){
+ $this->doc .= DOKU_LF.$text;
+ if (strlen($this->doc) > 250) $this->capture = false;
+ else $this->doc .= DOKU_LF;
+ }
+ }
+
+ function quote_open(){
+ if ($this->capture) $this->doc .= DOKU_LF.DOKU_TAB.'"';
+ }
+
+ function quote_close(){
+ if ($this->capture){
+ $this->doc .= '"';
+ if (strlen($this->doc) > 250) $this->capture = false;
+ else $this->doc .= DOKU_LF;
+ }
+ }
+
+ function code($text, $language = NULL, $file = null){
+ if ($this->capture){
+ $this->doc .= DOKU_LF.$text;
+ if (strlen($this->doc) > 250) $this->capture = false;
+ else $this->doc .= DOKU_LF;
+ }
+ }
+
+ function acronym($acronym){
+ if ($this->capture) $this->doc .= $acronym;
+ }
+
+ function smiley($smiley){
+ if ($this->capture) $this->doc .= $smiley;
+ }
+
+ function entity($entity){
+ if ($this->capture) $this->doc .= $entity;
+ }
+
+ function multiplyentity($x, $y){
+ if ($this->capture) $this->doc .= $x.'×'.$y;
+ }
+
+ function singlequoteopening(){
+ global $lang;
+ if ($this->capture) $this->doc .= $lang['singlequoteopening'];
+ }
+
+ function singlequoteclosing(){
+ global $lang;
+ if ($this->capture) $this->doc .= $lang['singlequoteclosing'];
+ }
+
+ function apostrophe() {
+ global $lang;
+ if ($this->capture) $this->doc .= $lang['apostrophe'];
+ }
+
+ function doublequoteopening(){
+ global $lang;
+ if ($this->capture) $this->doc .= $lang['doublequoteopening'];
+ }
+
+ function doublequoteclosing(){
+ global $lang;
+ if ($this->capture) $this->doc .= $lang['doublequoteclosing'];
+ }
+
+ function camelcaselink($link) {
+ $this->internallink($link, $link);
+ }
+
+ function locallink($hash, $name = NULL){}
+
+ /**
+ * keep track of internal links in $this->meta['relation']['references']
+ */
+ function internallink($id, $name = NULL){
+ global $ID;
+
+ if(is_array($name))
+ $this->_firstimage($name['src']);
+
+ $default = $this->_simpleTitle($id);
+
+ // first resolve and clean up the $id
+ resolve_pageid(getNS($ID), $id, $exists);
+ list($page, $hash) = explode('#', $id, 2);
+
+ // set metadata
+ $this->meta['relation']['references'][$page] = $exists;
+ // $data = array('relation' => array('isreferencedby' => array($ID => true)));
+ // p_set_metadata($id, $data);
+
+ // add link title to summary
+ if ($this->capture){
+ $name = $this->_getLinkTitle($name, $default, $id);
+ $this->doc .= $name;
+ }
+ }
+
+ function externallink($url, $name = NULL){
+ if(is_array($name))
+ $this->_firstimage($name['src']);
+
+ if ($this->capture){
+ if ($name) $this->doc .= $name;
+ else $this->doc .= '<'.$url.'>';
+ }
+ }
+
+ function interwikilink($match, $name = NULL, $wikiName, $wikiUri){
+ if(is_array($name))
+ $this->_firstimage($name['src']);
+
+ if ($this->capture){
+ list($wikiUri, $hash) = explode('#', $wikiUri, 2);
+ $name = $this->_getLinkTitle($name, $wikiName.'>'.$wikiUri);
+ $this->doc .= $name;
+ }
+ }
+
+ function windowssharelink($url, $name = NULL){
+ if(is_array($name))
+ $this->_firstimage($name['src']);
+
+ if ($this->capture){
+ if ($name) $this->doc .= $name;
+ else $this->doc .= '<'.$url.'>';
+ }
+ }
+
+ function emaillink($address, $name = NULL){
+ if(is_array($name))
+ $this->_firstimage($name['src']);
+
+ if ($this->capture){
+ if ($name) $this->doc .= $name;
+ else $this->doc .= '<'.$address.'>';
+ }
+ }
+
+ function internalmedia($src, $title=NULL, $align=NULL, $width=NULL,
+ $height=NULL, $cache=NULL, $linking=NULL){
+ if ($this->capture && $title) $this->doc .= '['.$title.']';
+ $this->_firstimage($src);
+ }
+
+ function externalmedia($src, $title=NULL, $align=NULL, $width=NULL,
+ $height=NULL, $cache=NULL, $linking=NULL){
+ if ($this->capture && $title) $this->doc .= '['.$title.']';
+ $this->_firstimage($src);
+ }
+
+ function rss($url,$params) {
+ $this->meta['relation']['haspart'][$url] = true;
+
+ $this->meta['date']['valid']['age'] =
+ isset($this->meta['date']['valid']['age']) ?
+ min($this->meta['date']['valid']['age'],$params['refresh']) :
+ $params['refresh'];
+ }
+
+ function table_open($maxcols = NULL, $numrows = NULL){}
+ function table_close(){}
+
+ function tablerow_open(){}
+ function tablerow_close(){}
+
+ function tableheader_open($colspan = 1, $align = NULL, $rowspan = 1){}
+ function tableheader_close(){}
+
+ function tablecell_open($colspan = 1, $align = NULL, $rowspan = 1){}
+ function tablecell_close(){}
+
+ //----------------------------------------------------------
+ // Utils
+
+ /**
+ * Removes any Namespace from the given name but keeps
+ * casing and special chars
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+ function _simpleTitle($name){
+ global $conf;
+
+ if(is_array($name)) return '';
+
+ if($conf['useslash']){
+ $nssep = '[:;/]';
+ }else{
+ $nssep = '[:;]';
+ }
+ $name = preg_replace('!.*'.$nssep.'!','',$name);
+ //if there is a hash we use the anchor name only
+ $name = preg_replace('!.*#!','',$name);
+ return $name;
+ }
+
+ /**
+ * Creates a linkid from a headline
+ *
+ * @param string $title The headline title
+ * @param boolean $create Create a new unique ID?
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+ function _headerToLink($title, $create=false) {
+ if($create){
+ return sectionID($title,$this->headers);
+ }else{
+ $check = false;
+ return sectionID($title,$check);
+ }
+ }
+
+ /**
+ * Construct a title and handle images in titles
+ *
+ * @author Harry Fuecks <hfuecks@gmail.com>
+ */
+ function _getLinkTitle($title, $default, $id=NULL) {
+ global $conf;
+
+ $isImage = false;
+ if (is_null($title)){
+ if (useHeading('content') && $id){
+ $heading = p_get_first_heading($id,false);
+ if ($heading) return $heading;
+ }
+ return $default;
+ } else if (is_string($title)){
+ return $title;
+ } else if (is_array($title)){
+ return '['.$title['title'].']';
+ }
+ }
+
+ function _firstimage($src){
+ if($this->firstimage) return;
+ global $ID;
+
+ list($src,$hash) = explode('#',$src,2);
+ if(!preg_match('/^https?:\/\//i',$src)){
+ resolve_mediaid(getNS($ID),$src, $exists);
+ }
+ if(preg_match('/.(jpe?g|gif|png)$/i',$src)){
+ $this->firstimage = $src;
+ }
+ }
+}
+
+//Setup VIM: ex: et ts=4 enc=utf-8 :
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-14 22:59:18 +0000