function blackboard_convert($dir)
{
global $CFG, $OUTPUT;
throw new coding_exception('bb_convert was not converted to new file api yet, sorry');
// Check for a Blackboard manifest file
if (is_readable($dir . '/imsmanifest.xml') && !is_readable($dir . '/moodle.xml')) {
if (!function_exists('xslt_create')) {
// XSLT MUST be installed for this to work
echo $OUTPUT->notification('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 "<li>Converting Blackboard export</li>";
// 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}")) {
echo $OUTPUT->notification('Could not copy the XSLT file to ' . "{$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")) {
echo $OUTPUT->notification('Failed writing xml file');
chdir($startdir);
return false;
}
// Copy the Blackboard course files into the moodle course_files structure
$subdirs = get_subdirs($dir . "/");
mkdir("{$dir}/course_files", $CFG->directorypermissions);
foreach ($subdirs as $subdir) {
rename($subdir, "course_files/{$subdir}");
rename_hexfiles($subdir);
}
chdir($startdir);
// Blackboard export successfully converted
return true;
}
// This is not a Blackboard export
return true;
}
function get_subdirs($base, $dir)
{
$arr = array();
$D = new DirectoryIterator($base . $dir);
$ds = array();
foreach ($D as $dname) {
if ($dname->isDot() || !$dname->isDir()) {
continue;
}
$ds[] = $dname->getFilename();
}
asort($ds);
foreach ($ds as $d) {
$arr[$dir . '/' . $d] = $dir . '/' . $d;
$arr = array_merge($arr, get_subdirs($base, $dir . '/' . $d));
}
return $arr;
}
