10-25-04 require_once($CFG->dirroot.'/backup/bb/xsl_emulate_xslt.inc'); function get_subdirs($directory){ $opendirectory = opendir( $directory ); while($filename = readdir($opendirectory)) { if (is_dir($directory.$filename) and $filename != ".." and $filename != "."){ $subdirs[] = $filename; } } closedir($opendirectory); return $subdirs; } function choose_bb_xsl($manifest){ $f = fopen($manifest,"r"); $buffer = fgets($f, 400); $buffer = fgets($f, 400); fclose($f); if (strstr($buffer,"xmlns:bb=\"http://www.blackboard.com/content-packaging/\"")){ return "bb6_to_moodle.xsl"; } return "bb5.5_to_moodle.xsl"; } function blackboard_convert($dir){ global $CFG; // Check for a Blackboard manifest file if (is_readable($dir.'/imsmanifest.xml') && !is_readable($dir.'/moodle.xml')){ if (!function_exists('xslt_create')) { // XSLT MUST be installed for this to work notify('You need the XSLT library installed in PHP to open this Blackboard file'); return false; } //Select the proper XSL file $xslt_file = choose_bb_xsl($dir.'/imsmanifest.xml'); //TODO: Use the get_string function for this echo "

Converting Blackboard export

"; // The XSL file must be in the same directory as the Blackboard files when it is processed if (!copy($CFG->dirroot."/backup/bb/$xslt_file", "$dir/$xslt_file")) { notify('Could not copy the XSLT file to '."$dir/$xslt_file"); return false; } // Change to that directory $startdir = getcwd(); chdir($dir); // Process the Blackboard XML files with the chosen XSL file. // The imsmanifest contains all the XML files and their relationships. // The XSL processor will open them as needed. $xsltproc = xslt_create(); if (!xslt_process($xsltproc, 'imsmanifest.xml', "$dir/$xslt_file", "$dir/moodle.xml")) { notify('Failed writing xml file'); chdir($startdir); return false; } // Copy the Blackboard course files into the moodle course_files structure $subdirs = get_subdirs($dir."/"); mkdir("$dir/course_files"); foreach ($subdirs as $subdir){ rename($subdir, "course_files/$subdir"); } chdir($startdir); // Blackboard export successfully converted return true; } // This is not a Blackboard export return true; } ?>