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27af904b85
engine give nicer results with adequate pagination. Adding icon and reference to course origine. Generalizing replacement of isadmin by doanithing capability check should contribute to close many global search related issues from http://tracker.moodle.org/browse/MDL-14646 startpoint
59 lines
2.2 KiB
PHP
59 lines
2.2 KiB
PHP
<?php
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/**
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* Global Search Engine for Moodle
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*
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* @package search
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* @category core
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* @subpackage document_wrappers
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* @author Valery Fremaux [valery.fremaux@club-internet.fr] > 1.8
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* @date 2008/03/31
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* @license http://www.gnu.org/copyleft/gpl.html GNU Public License
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*
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* this is a format handler for getting text out of a proprietary binary format
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* so it can be indexed by Lucene search engine
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*/
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/**
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* @param object $resource
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* @uses $CFG
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*/
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function get_text_for_indexing_pdf(&$resource, $directfile = ''){
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global $CFG;
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// SECURITY : do not allow non admin execute anything on system !!
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if (!has_capability('moodle/site:doanything', get_context_instance(CONTEXT_SYSTEM))) return;
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// adds moodle root switch if none was defined
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if (!isset($CFG->block_search_usemoodleroot)){
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set_config('block_search_usemoodleroot', 1);
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}
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$moodleroot = ($CFG->block_search_usemoodleroot) ? "{$CFG->dirroot}/" : '' ;
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// just call pdftotext over stdout and capture the output
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if (!empty($CFG->block_search_pdf_to_text_cmd)){
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preg_match("/^\S+/", $CFG->block_search_pdf_to_text_cmd, $matches);
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if (!file_exists("{$moodleroot}{$matches[0]}")){
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mtrace('Error with pdf to text converter command : executable not found at '.$moodleroot.$matches[0]);
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} else {
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if ($directfile == ''){
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$file = escapeshellarg("{$CFG->dataroot}/{$resource->course}/{$resource->reference}");
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} else {
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$file = escapeshellarg("{$CFG->dataroot}/{$directfile}");
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}
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$command = trim($CFG->block_search_pdf_to_text_cmd);
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$text_converter_cmd = "{$moodleroot}{$command} $file -";
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$result = shell_exec($text_converter_cmd);
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if ($result){
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return $result;
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} else {
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mtrace('Error with pdf to text converter command : execution failed for '.$text_converter_cmd.'. Check for execution permission on pdf converter executable.');
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return '';
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}
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}
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} else {
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mtrace('Error with pdf to text converter command : command not set up. Execute once search block configuration.');
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return '';
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}
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}
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?>
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