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@@ -40,6 +40,8 @@
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==============================================================================
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*/
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+require_once api_get_path(LIBRARY_PATH).'course.lib.php';
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+
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/*
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==============================================================================
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CONSTANTS
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@@ -1091,7 +1093,509 @@ class DocumentManager {
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return false;
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}
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}
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+
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+
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+ /**
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+ * Gets the list of included resources as a list of absolute or relative paths from a html file or string html
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+ * This allows for a better SCORM export or replace urls inside content html from copy course
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+ * The list will generally include pictures, flash objects, java applets, or any other
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+ * stuff included in the source of the current item. The current item is expected
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+ * to be an HTML file or string html. If it is not, then the function will return and empty list.
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+ * @param string source html (content or path)
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+ * @param bool is file or string html
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+ * @param string type (one of the Dokeos tools) - optional (otherwise takes the current item's type)
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+ * @param int level of recursivity we're in
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+ * @return array List of file paths. An additional field containing 'local' or 'remote' helps determine if the file should be copied into the zip or just linked
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+ */
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+ function get_resources_from_source_html($source_html, $is_file = false, $type=null, $recursivity=1)
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+ {
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+ $max = 5;
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+ $attributes = array();
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+ $wanted_attributes = array('src','url','@import','href','value');
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+ $abs_path = '';
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+
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+ if ($recursivity > $max) {
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+ return array();
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+ }
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+
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+ if (!isset($type)) {
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+ $type = TOOL_DOCUMENT;
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+ }
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+
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+ if (!$is_file) {
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+ $attributes = DocumentManager::parse_HTML_attributes($source_html,$wanted_attributes);
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+ } else {
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+ if (is_file($source_html)) {
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+ $abs_path = $source_html;
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+ //for now, read the whole file in one go (that's gonna be a problem when the file is too big)
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+ $info = pathinfo($abs_path);
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+ $ext = $info['extension'];
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+ switch (strtolower($ext)) {
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+ case 'html' :
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+ case 'htm' :
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+ case 'shtml':
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+ case 'css' : $file_content = file_get_contents($abs_path);
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+ //get an array of attributes from the HTML source
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+ $attributes = DocumentManager::parse_HTML_attributes($file_content,$wanted_attributes);
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+ break;
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+ default : break;
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+ }
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+ } else {
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+ return false;
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+ }
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+ }
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+
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+ switch($type)
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+ {
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+ case TOOL_DOCUMENT :
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+ case TOOL_QUIZ:
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+ case 'sco':
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+ foreach($wanted_attributes as $attr)
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+ {
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+ if(isset($attributes[$attr]))
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+ {
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+ //find which kind of path these are (local or remote)
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+ $sources = $attributes[$attr];
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+ foreach($sources as $source)
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+ {
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+ //skip what is obviously not a resource
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+ if(strpos($source,"+this.")) continue; //javascript code - will still work unaltered
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+ if(strpos($source,'.')=== false) continue; //no dot, should not be an external file anyway
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+ if(strpos($source,'mailto:')) continue; //mailto link
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+ if(strpos($source,';') && !strpos($source,'&')) continue; //avoid code - that should help
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+
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+ if($attr == 'value')
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+ {
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+ if(strpos($source , 'mp3file'))
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+ {
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+ $files_list[] = array(substr($source, 0, strpos($source , '.swf')+4),'local','abs');
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+ $mp3file = substr($source , strpos($source , 'mp3file=')+8);
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+ if(substr($mp3file,0,1) == '/')
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+ $files_list[] = array($mp3file,'local','abs');
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+ else
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+ $files_list[] = array($mp3file,'local','rel');
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+ }
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+ elseif(strpos($source, 'flv=')===0)
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+ {
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+ $source = substr($source, 4);
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+ if(strpos($source, '&')>0)
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+ {
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+ $source = substr($source,0,strpos($source, '&'));
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+ }
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+ if(strpos($source,'://')>0)
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+ {
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+ if(strpos($source,api_get_path(WEB_PATH))!==false)
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+ {
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+ //we found the current portal url
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+ $files_list[] = array($source,'local','url');
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+ }
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+ else
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+ {
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+ //we didn't find any trace of current portal
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+ $files_list[] = array($source,'remote','url');
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+ }
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+ }
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+ else
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+ {
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+ $files_list[] = array($source,'local','abs');
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+ }
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+ continue; //skipping anything else to avoid two entries (while the others can have sub-files in their url, flv's can't)
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+ }
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+ }
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+ if(strpos($source,'://') > 0)
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+ {
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+ //cut at '?' in a URL with params
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+ if(strpos($source,'?')>0)
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+ {
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+ $second_part = substr($source,strpos($source,'?'));
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+ if(strpos($second_part,'://')>0)
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+ {//if the second part of the url contains a url too, treat the second one before cutting
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+
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+ $pos1 = strpos($second_part,'=');
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+ $pos2 = strpos($second_part,'&');
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+ $second_part = substr($second_part,$pos1+1,$pos2-($pos1+1));
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+ if(strpos($second_part,api_get_path(WEB_PATH))!==false)
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+ {
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+ //we found the current portal url
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+ $files_list[] = array($second_part,'local','url');
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+ $in_files_list[] = DocumentManager::get_resources_from_source_html($second_part, true, TOOL_DOCUMENT, recursivity+1);
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+ if(count($in_files_list)>0)
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+ {
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+ $files_list = array_merge($files_list,$in_files_list);
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+ }
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+ }
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+ else
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+ {
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+ //we didn't find any trace of current portal
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+ $files_list[] = array($second_part,'remote','url');
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+ }
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+ }
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+ elseif(strpos($second_part,'=')>0)
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+ {
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+ if(substr($second_part,0,1) === '/')
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+ { //link starts with a /, making it absolute (relative to DocumentRoot)
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+ $files_list[] = array($second_part,'local','abs');
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+ $in_files_list[] = DocumentManager::get_resources_from_source_html($second_part, true, TOOL_DOCUMENT,$recursivity+1);
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+ if(count($in_files_list)>0)
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+ {
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+ $files_list = array_merge($files_list,$in_files_list);
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+ }
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+ }
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+ elseif(strstr($second_part,'..') === 0)
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+ { //link is relative but going back in the hierarchy
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+ $files_list[] = array($second_part,'local','rel');
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+ //$dir = api_get_path(SYS_CODE_PATH);//dirname($abs_path);
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+ //$new_abs_path = realpath($dir.'/'.$second_part);
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+ $dir = '';
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+ if (!empty($abs_path)) {
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+ $dir = dirname($abs_path).'/';
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+ }
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+ $new_abs_path = realpath($dir.$second_part);
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+ $in_files_list[] = DocumentManager::get_resources_from_source_html($new_abs_path, true, TOOL_DOCUMENT,$recursivity+1);
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+ if(count($in_files_list)>0)
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+ {
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+ $files_list = array_merge($files_list,$in_files_list);
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+ }
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+ }
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+ else
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+ { //no starting '/', making it relative to current document's path
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+ if(substr($second_part,0,2) == './')
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+ {
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+ $second_part = substr($second_part,2);
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+ }
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+ $files_list[] = array($second_part,'local','rel');
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+ $dir = '';
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+ if (!empty($abs_path)) {
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+ $dir = dirname($abs_path).'/';
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+ }
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+ $new_abs_path = realpath($dir.$second_part);
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+ $in_files_list[] = DocumentManager::get_resources_from_source_html($new_abs_path, true, TOOL_DOCUMENT,$recursivity+1);
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+ if(count($in_files_list)>0)
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+ {
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+ $files_list = array_merge($files_list,$in_files_list);
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+ }
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+ }
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+ }
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+ //leave that second part behind now
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+ $source = substr($source,0,strpos($source,'?'));
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+ if(strpos($source,'://') > 0)
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+ {
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+ if(strpos($source,api_get_path(WEB_PATH))!==false)
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+ {
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+ //we found the current portal url
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+ $files_list[] = array($source,'local','url');
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+ $in_files_list[] = DocumentManager::get_resources_from_source_html($source, true, TOOL_DOCUMENT, $recursivity+1);
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+ if(count($in_files_list)>0)
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+ {
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+ $files_list = array_merge($files_list,$in_files_list);
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+ }
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+ }
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+ else
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+ {
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+ //we didn't find any trace of current portal
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+ $files_list[] = array($source,'remote','url');
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+ }
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+ }
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+ else
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+ {
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+ //no protocol found, make link local
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+ if(substr($source,0,1) === '/')
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+ { //link starts with a /, making it absolute (relative to DocumentRoot)
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+ $files_list[] = array($source,'local','abs');
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+ $in_files_list[] = DocumentManager::get_resources_from_source_html($source, true, TOOL_DOCUMENT, $recursivity+1);
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+ if(count($in_files_list)>0)
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+ {
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+ $files_list = array_merge($files_list,$in_files_list);
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+ }
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+ }
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+ elseif(strstr($source,'..') === 0)
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+ { //link is relative but going back in the hierarchy
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+ $files_list[] = array($source,'local','rel');
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+ $dir = '';
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+ if (!empty($abs_path)) {
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+ $dir = dirname($abs_path).'/';
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+ }
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+ $new_abs_path = realpath($dir.$source);
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+ $in_files_list[] = DocumentManager::get_resources_from_source_html($new_abs_path, true, TOOL_DOCUMENT, $recursivity+1);
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+ if(count($in_files_list)>0)
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+ {
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+ $files_list = array_merge($files_list,$in_files_list);
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+ }
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+ }
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+ else
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+ { //no starting '/', making it relative to current document's path
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+ if(substr($source,0,2) == './')
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+ {
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+ $source = substr($source,2);
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+ }
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+ $files_list[] = array($source,'local','rel');
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+ $dir = '';
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+ if (!empty($abs_path)) {
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+ $dir = dirname($abs_path).'/';
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+ }
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+ $new_abs_path = realpath($dir.$source);
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+ $in_files_list[] = DocumentManager::get_resources_from_source_html($new_abs_path, true, TOOL_DOCUMENT, $recursivity+1);
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+ if(count($in_files_list)>0)
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+ {
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+ $files_list = array_merge($files_list,$in_files_list);
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+ }
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+ }
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+ }
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+ }
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+ //found some protocol there
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+ if(strpos($source,api_get_path(WEB_PATH))!==false)
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+ {
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+ //we found the current portal url
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+ $files_list[] = array($source,'local','url');
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+ $in_files_list[] = DocumentManager::get_resources_from_source_html($source, true, TOOL_DOCUMENT, $recursivity+1);
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+ if(count($in_files_list)>0)
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+ {
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+ $files_list = array_merge($files_list,$in_files_list);
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+ }
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+ }
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+ else
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+ {
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+ //we didn't find any trace of current portal
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+ $files_list[] = array($source,'remote','url');
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+ }
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+ }
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+ else
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+ {
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+ //no protocol found, make link local
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+ if(substr($source,0,1) === '/')
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+ { //link starts with a /, making it absolute (relative to DocumentRoot)
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+ $files_list[] = array($source,'local','abs');
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+ $in_files_list[] = DocumentManager::get_resources_from_source_html($source, true, TOOL_DOCUMENT, $recursivity+1);
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+ if(count($in_files_list)>0)
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+ {
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+ $files_list = array_merge($files_list,$in_files_list);
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+ }
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+ }
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+ elseif(strpos($source,'..') === 0)
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+ { //link is relative but going back in the hierarchy
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+ $files_list[] = array($source,'local','rel');
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+ $dir = '';
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+ if (!empty($abs_path)) {
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+ $dir = dirname($abs_path).'/';
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+ }
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+ $new_abs_path = realpath($dir.$source);
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+ $in_files_list[] = DocumentManager::get_resources_from_source_html($new_abs_path, true, TOOL_DOCUMENT,$recursivity+1);
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+ if(count($in_files_list)>0)
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+ {
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+ $files_list = array_merge($files_list,$in_files_list);
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+ }
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+ }
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+ else
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+ { //no starting '/', making it relative to current document's path
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+ if(substr($source,0,2) == './')
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+ {
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+ $source = substr($source,2);
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+ }
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+ $files_list[] = array($source,'local','rel');
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+ $dir = '';
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+ if (!empty($abs_path)) {
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+ $dir = dirname($abs_path).'/';
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+ }
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+ $new_abs_path = realpath($dir.$source);
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+ $in_files_list[] = DocumentManager::get_resources_from_source_html($new_abs_path, true, TOOL_DOCUMENT, $recursivity+1);
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+ if(count($in_files_list)>0)
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+ {
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+ $files_list = array_merge($files_list,$in_files_list);
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+ }
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+ }
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+ }
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+ }
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+ }
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+ }
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+ break;
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+ default: //ignore
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+ break;
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+ }
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+
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+ $checked_files_list = array();
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+ $checked_array_list = array();
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+
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+ if (count($files_list ) > 0) {
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+ foreach($files_list as $idx => $file)
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+ {
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+ if(!empty($file[0]))
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+ {
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+ if(!in_array($file[0],$checked_files_list))
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+ {
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+ $checked_files_list[] = $files_list[$idx][0];
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+ $checked_array_list[] = $files_list[$idx];
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+ }
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+ }
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+ }
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+ }
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+ return $checked_array_list;
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+ }
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+
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+ /**
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+ * Parses the HTML attributes given as string.
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+ *
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+ * @param string HTML attribute string
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+ * @param array List of attributes that we want to get back
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+ * @return array An associative array of attributes
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+ * @author Based on a function from the HTML_Common2 PEAR module
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+ */
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+ function parse_HTML_attributes($attrString,$wanted=array())
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+ {
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+ $attributes = array();
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+ $regs = array();
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+ $reduced = false;
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+ if(count($wanted)>0)
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+ {
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+ $reduced = true;
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+ }
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+ try {
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+ //Find all occurences of something that looks like a URL
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+ // The structure of this regexp is:
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+ // (find protocol) then
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+ // (optionally find some kind of space 1 or more times) then
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+ // find (either an equal sign or a bracket) followed by an optional space
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+ // followed by some text without quotes (between quotes itself or not)
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+ // then possible closing brackets if we were in the opening bracket case
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+ // OR something like @import()
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+ $res = preg_match_all(
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+ '/(((([A-Za-z_:])([A-Za-z0-9_:\.-]*))' .
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+ // '/(((([A-Za-z_:])([A-Za-z0-9_:\.-]|[^\x00-\x7F])*)' . -> seems to be taking too much
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+ // '/(((([A-Za-z_:])([^\x00-\x7F])*)' . -> takes only last letter of parameter name
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+ '([ \n\t\r]+)?(' .
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+ // '(=([ \n\t\r]+)?("[^"]+"|\'[^\']+\'|[^ \n\t\r]+))' . -> doesn't restrict close enough to the url itself
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+ '(=([ \n\t\r]+)?("[^"\)]+"|\'[^\'\)]+\'|[^ \n\t\r\)]+))' .
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+ '|' .
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|
|
+ // '(\(([ \n\t\r]+)?("[^"]+"|\'[^\']+\'|[^ \n\t\r]+)\))' . -> doesn't restrict close enough to the url itself
|
|
|
+ '(\(([ \n\t\r]+)?("[^"\)]+"|\'[^\'\)]+\'|[^ \n\t\r\)]+)\))' .
|
|
|
+ '))' .
|
|
|
+ '|' .
|
|
|
+ // '(@import([ \n\t\r]+)?("[^"]+"|\'[^\']+\'|[^ \n\t\r]+)))?/', -> takes a lot (like 100's of thousands of empty possibilities)
|
|
|
+ '(@import([ \n\t\r]+)?("[^"]+"|\'[^\']+\'|[^ \n\t\r]+)))/',
|
|
|
+ $attrString,
|
|
|
+ $regs
|
|
|
+ );
|
|
|
+
|
|
|
+ } catch (Exception $e) {
|
|
|
+ error_log('Caught exception: '. $e->getMessage(),0) ;
|
|
|
+ }
|
|
|
+ if ($res) {
|
|
|
+ for ($i = 0; $i < count($regs[1]); $i++) {
|
|
|
+ $name = trim($regs[3][$i]);
|
|
|
+ $check = trim($regs[0][$i]);
|
|
|
+ $value = trim($regs[10][$i]);
|
|
|
+ if(empty($value) and !empty($regs[13][$i])){
|
|
|
+ $value = $regs[13][$i];
|
|
|
+ }
|
|
|
+ if(empty($name) && !empty($regs[16][$i]))
|
|
|
+ {
|
|
|
+ $name = '@import';
|
|
|
+ $value = trim($regs[16][$i]);
|
|
|
+ }
|
|
|
+ if(!empty($name))
|
|
|
+ {
|
|
|
+ if(!$reduced OR in_array(strtolower($name),$wanted))
|
|
|
+ {
|
|
|
+ if ($name == $check) {
|
|
|
+ $attributes[strtolower($name)][] = strtolower($name);
|
|
|
+ } else {
|
|
|
+ if (!empty($value) && ($value[0] == '\'' || $value[0] == '"')) {
|
|
|
+ $value = substr($value, 1, -1);
|
|
|
+ }
|
|
|
+ if ($value=='API.LMSGetValue(name') {
|
|
|
+ $value='API.LMSGetValue(name)';
|
|
|
+ }
|
|
|
+ $attributes[strtolower($name)][] = $value;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }else{
|
|
|
+ error_log('preg_match did not find anything',0);
|
|
|
+ }
|
|
|
+ return $attributes;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * Replace urls inside content html from a copy course
|
|
|
+ * @param string content html
|
|
|
+ * @param string origin course code
|
|
|
+ * @param string destination course directory
|
|
|
+ * @return string new content html with replaced urls or return false if content is not a string
|
|
|
+ */
|
|
|
+ function replace_urls_inside_content_html_from_copy_course($content_html, $origin_course_code, $destination_course_directory) {
|
|
|
+
|
|
|
+ if (!is_string($content_html)) {
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+
|
|
|
+ $orig_source_html = DocumentManager::get_resources_from_source_html($content_html);
|
|
|
+ $orig_course_info = api_get_course_info($origin_course_code);
|
|
|
+ $orig_course_path = api_get_path(SYS_PATH).'courses/'.$orig_course_info['path'].'/';
|
|
|
+ $destination_course_code = CourseManager::get_course_id_from_path ($destination_course_directory);
|
|
|
+ $dest_course_path = api_get_path(SYS_COURSE_PATH).$destination_course_directory.'/';
|
|
|
+
|
|
|
+
|
|
|
+ foreach ($orig_source_html as $source) {
|
|
|
+
|
|
|
+ //var_dump($source);
|
|
|
+
|
|
|
+ // get information about source url
|
|
|
+ $real_orig_url = $source[0]; // url
|
|
|
+ $scope_url = $source[1]; // scope (local, remote)
|
|
|
+ $type_url = $source[2]; // tyle (rel, abs, url)
|
|
|
+
|
|
|
+ // get path and query from origin url
|
|
|
+ $orig_parse_url = parse_url($real_orig_url);
|
|
|
+ $real_orig_path = $orig_parse_url['path'];
|
|
|
+ $real_orig_query = $orig_parse_url['query'];
|
|
|
+
|
|
|
+ // replace origin course code by destination course code from origin url query
|
|
|
+ $dest_url_query = '';
|
|
|
+ if (!empty($real_orig_query)) {
|
|
|
+ $dest_url_query = '?'.$real_orig_query;
|
|
|
+ if (strpos($dest_url_query,$origin_course_code) !== false) {
|
|
|
+ $dest_url_query = str_replace($origin_course_code,$destination_course_code,$dest_url_query);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ if ($scope_url == 'local') {
|
|
|
+ if ( $type_url == 'abs' || $type_url == 'rel') {
|
|
|
+ $document_file = strstr($real_orig_path,'document');
|
|
|
+ if (strpos($real_orig_path,$document_file) !== false) {
|
|
|
+ $origin_filepath = $orig_course_path.$document_file;
|
|
|
+ $destination_filepath = $dest_course_path.$document_file;
|
|
|
+ // copy origin file inside destination course
|
|
|
+ if (file_exists($origin_filepath)) {
|
|
|
+ $filepath_dir = dirname($destination_filepath);
|
|
|
+ if (!is_dir($filepath_dir)) {
|
|
|
+ $perm = api_get_setting('permissions_for_new_directories');
|
|
|
+ $perm = octdec(!empty($perm)?$perm:0777);
|
|
|
+ @mkdir($filepath_dir,$perm,true);
|
|
|
+ }
|
|
|
+ if (!file_exists($destination_filepath)) {
|
|
|
+ @copy($origin_filepath,$destination_filepath);
|
|
|
+ }
|
|
|
+ }
|
|
|
+ // replace origin course path by destination course path
|
|
|
+ if (strpos($content_html,$real_orig_url) !== false) {
|
|
|
+ $url_course_path = str_replace($orig_course_info['path'].'/'.$document_file,'',$real_orig_path);
|
|
|
+ $destination_url = $url_course_path.$destination_course_directory.'/'.$document_file.$dest_url_query;
|
|
|
+ $content_html = str_replace($real_orig_url,$destination_url, $content_html);
|
|
|
+ }
|
|
|
+ }
|
|
|
|
|
|
+ // replace origin course code by destination course code from origin url
|
|
|
+ if (strpos($real_orig_url,'?') === 0) {
|
|
|
+ $dest_url = str_replace($origin_course_code,$destination_course_code,$real_orig_url);
|
|
|
+ $content_html = str_replace($real_orig_url,$dest_url, $content_html);
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return $content_html;
|
|
|
+ }
|
|
|
+
|
|
|
}
|
|
|
//end class DocumentManager
|
|
|
-?>
|
|
|
+?>
|