/**
* Generic handler function for all events - queues files for sending.
* @return boolean
*/
public function event_handler($eventdata)
{
global $DB, $CFG;
$plagiarismsettings = $this->get_settings();
if (!$plagiarismsettings) {
return true;
}
$cmid = $eventdata['contextinstanceid'];
$plagiarismvalues = $DB->get_records_menu('plagiarism_urkund_config', array('cm' => $cmid), '', 'name, value');
if (empty($plagiarismvalues['use_urkund'])) {
// Urkund not in use for this cm - return.
return true;
}
// Check if the module associated with this event still exists.
if (!$DB->record_exists('course_modules', array('id' => $cmid))) {
return true;
}
// Check to see if restrictcontent is in use.
$showcontent = true;
$showfiles = true;
if (!empty($plagiarismvalues[$cmid]['urkund_restrictcontent'])) {
if ($plagiarismvalues['urkund_restrictcontent'] == PLAGIARISM_URKUND_RESTRICTCONTENTFILES) {
$showcontent = false;
} else {
if ($plagiarismvalues['urkund_restrictcontent'] == PLAGIARISM_URKUND_RESTRICTCONTENTTEXT) {
$showfiles = false;
}
}
}
if (!empty($plagiarismsettings['urkund_wordcount'])) {
$wordcount = $plagiarismsettings['urkund_wordcount'];
} else {
// Set a sensible default if we can't find one.
$wordcount = 50;
}
if ($eventdata['eventtype'] == 'assignsubmission_submitted' && empty($eventdata['other']['submission_editable'])) {
// Assignment-specific functionality:
// This is a 'finalize' event. No files from this event itself,
// but need to check if files from previous events need to be submitted for processing.
$result = true;
if (isset($plagiarismvalues['urkund_draft_submit']) && $plagiarismvalues['urkund_draft_submit'] == PLAGIARISM_URKUND_DRAFTSUBMIT_FINAL) {
// Any files attached to previous events were not submitted.
// These files are now finalized, and should be submitted for processing.
require_once "{$CFG->dirroot}/mod/assign/locallib.php";
require_once "{$CFG->dirroot}/mod/assign/submission/file/locallib.php";
$modulecontext = context_module::instance($cmid);
if ($showfiles) {
// If we should be handling files.
$fs = get_file_storage();
if ($files = $fs->get_area_files($modulecontext->id, 'assignsubmission_file', ASSIGNSUBMISSION_FILE_FILEAREA, $eventdata['objectid'], "id", false)) {
foreach ($files as $file) {
urkund_queue_file($cmid, $eventdata['userid'], $file);
}
}
}
if ($showcontent) {
// If we should be handling in-line text.
$submission = $DB->get_record('assignsubmission_onlinetext', array('submission' => $eventdata['objectid']));
if (!empty($submission) && str_word_count($submission->onlinetext) > $wordcount) {
$content = trim(format_text($submission->onlinetext, $submission->onlineformat, array('context' => $modulecontext)));
$file = urkund_create_temp_file($cmid, $eventdata['courseid'], $eventdata['userid'], $content);
urkund_queue_file($cmid, $eventdata['userid'], $file);
}
}
}
return $result;
}
if (isset($plagiarismvalues['urkund_draft_submit']) && $plagiarismvalues['urkund_draft_submit'] == PLAGIARISM_URKUND_DRAFTSUBMIT_FINAL) {
// Assignment-specific functionality:
// Files should only be sent for checking once "finalized".
return true;
}
// Text is attached.
$result = true;
if (!empty($eventdata['other']['content']) && $showcontent && str_word_count($eventdata['other']['content']) > $wordcount) {
$file = urkund_create_temp_file($cmid, $eventdata['courseid'], $eventdata['userid'], $eventdata['other']['content']);
urkund_queue_file($cmid, $eventdata['userid'], $file);
}
// Normal situation: 1 or more assessable files attached to event, ready to be checked.
if (!empty($eventdata['other']['pathnamehashes']) && $showfiles) {
foreach ($eventdata['other']['pathnamehashes'] as $hash) {
$fs = get_file_storage();
$efile = $fs->get_file_by_hash($hash);
if (empty($efile)) {
mtrace("nofilefound!");
continue;
} else {
if ($efile->get_filename() === '.') {
// This 'file' is actually a directory - nothing to submit.
continue;
}
}
urkund_queue_file($cmid, $eventdata['userid'], $efile);
}
}
return $result;
}
/**
* Generic handler function for all events - triggers sending of files.
* @return boolean
*/
public function event_handler($eventdata)
{
global $DB, $CFG;
$supportedevents = urkund_supported_events();
if (!in_array($eventdata->eventtype, $supportedevents)) {
return true;
// Don't need to handle this event.
}
$plagiarismsettings = $this->get_settings();
if (!$plagiarismsettings) {
return true;
}
$cmid = !empty($eventdata->cm->id) ? $eventdata->cm->id : $eventdata->cmid;
$plagiarismvalues = $DB->get_records_menu('plagiarism_urkund_config', array('cm' => $cmid), '', 'name, value');
if (empty($plagiarismvalues['use_urkund'])) {
// Urkund not in use for this cm - return.
return true;
}
// Check if the module associated with this event still exists.
if (!$DB->record_exists('course_modules', array('id' => $eventdata->cmid))) {
return true;
}
if ($eventdata->eventtype == 'files_done' || $eventdata->eventtype == 'content_done' || $eventdata->eventtype == 'assessable_submitted' && $eventdata->params['submission_editable'] == false) {
// Assignment-specific functionality:
// This is a 'finalize' event. No files from this event itself,
// but need to check if files from previous events need to be submitted for processing.
mtrace("finalise");
$result = true;
if (isset($plagiarismvalues['urkund_draft_submit']) && $plagiarismvalues['urkund_draft_submit'] == PLAGIARISM_URKUND_DRAFTSUBMIT_FINAL) {
// Any files attached to previous events were not submitted.
// These files are now finalized, and should be submitted for processing.
if ($eventdata->modulename == 'assignment') {
// Hack to include filelib so that file_storage class is available.
require_once "{$CFG->dirroot}/mod/assignment/lib.php";
// We need to get a list of files attached to this assignment and put them in an array, so that
// we can submit each of them for processing.
$assignmentbase = new assignment_base($cmid);
$submission = $assignmentbase->get_submission($eventdata->userid);
$modulecontext = context_module::instance($eventdata->cmid);
$fs = get_file_storage();
if ($files = $fs->get_area_files($modulecontext->id, 'mod_assignment', 'submission', $submission->id, "timemodified", false)) {
foreach ($files as $file) {
$sendresult = urkund_send_file($cmid, $eventdata->userid, $file, $plagiarismsettings);
$result = $result && $sendresult;
}
}
} else {
if ($eventdata->modulename == 'assign') {
require_once "{$CFG->dirroot}/mod/assign/locallib.php";
require_once "{$CFG->dirroot}/mod/assign/submission/file/locallib.php";
$modulecontext = context_module::instance($eventdata->cmid);
$fs = get_file_storage();
if ($files = $fs->get_area_files($modulecontext->id, 'assignsubmission_file', ASSIGNSUBMISSION_FILE_FILEAREA, $eventdata->itemid, "id", false)) {
foreach ($files as $file) {
$sendresult = urkund_send_file($cmid, $eventdata->userid, $file, $plagiarismsettings);
$result = $result && $sendresult;
}
}
$submission = $DB->get_record('assignsubmission_onlinetext', array('submission' => $eventdata->itemid));
if (!empty($submission)) {
$eventdata->content = trim(format_text($submission->onlinetext, $submission->onlineformat, array('context' => $modulecontext)));
$file = urkund_create_temp_file($cmid, $eventdata);
$sendresult = urkund_send_file($cmid, $eventdata->userid, $file, $plagiarismsettings);
$result = $result && $sendresult;
unlink($file->filepath);
// Delete temp file.
}
}
}
}
return $result;
}
if (isset($plagiarismvalues['urkund_draft_submit']) && $plagiarismvalues['urkund_draft_submit'] == PLAGIARISM_URKUND_DRAFTSUBMIT_FINAL) {
// Assignment-specific functionality:
// Files should only be sent for checking once "finalized".
return true;
}
// Text is attached.
$result = true;
if (!empty($eventdata->content)) {
$file = urkund_create_temp_file($cmid, $eventdata);
$sendresult = urkund_send_file($cmid, $eventdata->userid, $file, $plagiarismsettings);
$result = $result && $sendresult;
unlink($file->filepath);
// Delete temp file.
}
// Normal situation: 1 or more assessable files attached to event, ready to be checked.
if (!empty($eventdata->pathnamehashes)) {
foreach ($eventdata->pathnamehashes as $hash) {
$fs = get_file_storage();
$efile = $fs->get_file_by_hash($hash);
if (empty($efile)) {
mtrace("nofilefound!");
continue;
} else {
if ($efile->get_filename() === '.') {
// This 'file' is actually a directory - nothing to submit.
continue;
}
}
// Check if assign group submission is being used.
if ($eventdata->modulename == 'assign') {
require_once "{$CFG->dirroot}/mod/assign/locallib.php";
$modulecontext = context_module::instance($eventdata->cmid);
$assign = new assign($modulecontext, false, false);
if (!empty($assign->get_instance()->teamsubmission)) {
$mygroups = groups_get_user_groups($assign->get_course()->id, $eventdata->userid);
if (count($mygroups) == 1) {
$groupid = reset($mygroups)[0];
// Only users with single groups are supported - otherwise just use the normal userid on this record.
// Get all users from this group.
$userids = array();
$users = groups_get_members($groupid, 'u.id');
foreach ($users as $u) {
$userids[] = $u->id;
}
// Find the earliest plagiarism record for this cm with any of these users.
$sql = 'cm = ? AND userid IN (' . implode(',', $userids) . ')';
$previousfiles = $DB->get_records_select('plagiarism_urkund_files', $sql, array($eventdata->cmid), 'id');
$sanitycheckusers = 10;
// Search through this number of users to find a valid previous submission.
$i = 0;
foreach ($previousfiles as $pf) {
if ($pf->userid == $eventdata->userid) {
break;
// The submission comes from this user so break.
}
// Sanity Check to make sure the user isn't in multiple groups.
$pfgroups = groups_get_user_groups($assign->get_course()->id, $pf->userid);
if (count($pfgroups) == 1) {
// This user made the first valid submission so use their id when sending the file.
$eventdata->userid = $pf->userid;
break;
}
if ($i >= $sanitycheckusers) {
// don't cause a massive loop here and break at a sensible limit.
break;
}
$i++;
}
}
}
}
$sendresult = urkund_send_file($cmid, $eventdata->userid, $efile, $plagiarismsettings);
$result = $result && $sendresult;
}
}
return $result;
}
