require_once SLOODLE_LIBROOT . '/sloodle_session.php';
// Authenticate the request, and load a chat module
$sloodle = new SloodleSession();
$sloodle->authenticate_request();
$sloodle->load_module('chat', true);
// Attempt to validate the user
// (this will auto-register/enrol users where necessary and allowed)
// If server access level is public, then validation is not essential... otherwise, it is
$sloodleserveraccesslevel = $sloodle->request->get_server_access_level(false);
if ($sloodleserveraccesslevel == 0) {
$sloodle->validate_user(false);
} else {
$sloodle->validate_user(true);
}
// Has an incoming message been provided?
$message = sloodle_clean_for_db($sloodle->request->optional_param('message', null));
if ($message != null) {
// Add it to the chatroom.
if (!$sloodle->module->add_message($message)) {
add_to_log($sloodle->course->get_course_id(), 'sloodle', 'add message', '', 'Added chat message to chatroom', $sloodle->request->get_module_id());
} else {
add_to_log($sloodle->course->get_course_id(), 'sloodle', 'add message', '', 'Failed to add chat message to chatroom', $sloodle->request->get_module_id());
}
}
// Start preparing the response
$sloodle->response->set_status_code(1);
$sloodle->response->set_status_descriptor('OK');
// Fetch a chat history.
// Always limit it to the last 60 seconds, but optionally also ignore everything before a certain point.
$messages = $sloodle->module->get_chat_history(60, $sloodle->request->optional_param('firstmessageid', 0));
foreach ($messages as $m) {
/**
* Process any form data which has been submitted.
*/
function process_form()
{
global $CFG;
// Slight hack to put this here. We need to have the permissions checked before we do this.
// Default to view mode. Only allow other types if the user has sufficient permission
if ($this->canedit) {
$this->presenter_mode = optional_param('mode', 'view');
} else {
$this->presenter_mode = 'view';
}
// If we're in moving mode, then grab the entry ID
if ($this->presenter_mode == 'moveslide') {
$this->movingentryid = (int) optional_param('entry', 0);
}
// Make sure Moodle includes our JavaScript files if necessary
if ($this->presenter_mode == 'edit' || $this->presenter_mode == 'addfiles') {
require_js($CFG->wwwroot . '/mod/sloodle/lib/jquery/jquery.js');
require_js($CFG->wwwroot . '/mod/sloodle/lib/jquery/jquery.uploadify.js');
require_js($CFG->wwwroot . '/mod/sloodle/lib/jquery/jquery.checkboxes.js');
require_js($CFG->wwwroot . '/mod/sloodle/lib/multiplefileupload/extra.js');
require_js($CFG->wwwroot . '/lib/filelib.php');
}
// Should we process any incoming editing commands?
if ($this->canedit) {
// Has an operation been cancelled?
if (isset($_REQUEST['sloodlecancel'])) {
if (!headers_sent()) {
header("Location: " . SLOODLE_WWWROOT . "/view.php?id={$this->cm->id}&mode=edit");
}
exit("Redirection failed.");
}
// We may want to redirect afterwards to prevent an argument showing up in the address bar
$redirect = false;
// Are we deleting a single slide?
if ($this->presenter_mode == 'deleteslide') {
// Make sure the session key is specified and valid
if (required_param('sesskey') != sesskey()) {
error('Invalid session key');
exit;
}
// Determine what slide is to be deleted
$entryid = (int) required_param('entry', PARAM_INT);
// Get the requested slide from the presentation
$entry = $this->presenter->get_slide($entryid);
if ($entry) {
// Delete the slide
$this->presenter->delete_entry($entryid);
// Set our feedback information, so the user knows it has been successful
$_SESSION['sloodle_presenter_feedback'] = get_string('presenter:deletedslide', 'sloodle', $entry->name);
} else {
// Set our feedback information, so the user knows it has not been successful;
$_SESSION['sloodle_presenter_feedback'] = get_string('presenter:deletedslides', 'sloodle', 0);
}
// Redirect back to the edit tab to get rid of our messy request parameters (and to prevent accidental repeat of the operation)
$redirect = true;
}
// Are we deleting multiple slides?
if ($this->presenter_mode == 'deletemultiple') {
// Make sure the session key is specified and valid
if (required_param('sesskey') != sesskey()) {
error('Invalid session key');
exit;
}
// Fetch the IDs of the slides which are being deleted
if (isset($_REQUEST['entries'])) {
$entryids = $_REQUEST['entries'];
} else {
error("Expected HTTP parameter 'entries' not found.");
}
// Go through the given entry IDs and attempt to delete them
$numdeleted = 0;
foreach ($entryids as $entryid) {
if ($this->presenter->delete_entry($entryid)) {
$numdeleted++;
}
}
// Set our feedback information so the user knows whether or not this was successful
$_SESSION['sloodle_presenter_feedback'] = get_string('presenter:deletedslides', 'sloodle', $numdeleted);
// Redirect back to the edit tab to get rid of our messy request parameters (and to prevent accidental repeat of the operation)
$redirect = true;
}
// Are we relocating an entry?
if ($this->presenter_mode == 'setslideposition') {
$entryid = (int) required_param('entry', PARAM_INT);
$position = (int) required_param('position', PARAM_INT);
$this->presenter->relocate_entry($entryid, $position);
$redirect = true;
}
// Has a new entry been added?
if (isset($_REQUEST['fileaddentry']) || isset($_REQUEST['sloodleaddentry'])) {
if (isset($_REQUEST['fileaddentry'])) {
$urls = $_REQUEST['fileurl'];
$names = $_REQUEST['filename'];
$i = 0;
foreach ($urls as $u) {
$fnamelen = strlen($u);
$extension = substr($u, $fnamelen - 4);
$ftype = strtolower($extension);
switch ($ftype) {
case ".mov":
$ftype = "video";
break;
case ".mp4":
$ftype = "video";
break;
case ".jpg":
$ftype = "image";
break;
case ".png":
$ftype = "image";
break;
case ".gif":
$ftype = "image";
break;
case ".bmp":
$ftype = "image";
break;
case ".htm":
$ftype = "web";
break;
case "html":
$ftype = "web";
break;
}
$this->presenter->add_entry(sloodle_clean_for_db($u), $ftype, sloodle_clean_for_db($names[$i++]));
}
$redirect = true;
}
if (isset($_REQUEST['sloodleaddentry'])) {
if ($_REQUEST['sloodleentryurl'] != '') {
$sloodleentryurl = sloodle_clean_for_db($_REQUEST['sloodleentryurl']);
$sloodleentrytype = sloodle_clean_for_db($_REQUEST['sloodleentrytype']);
$sloodleentryname = sloodle_clean_for_db($_REQUEST['sloodleentryname']);
$sloodleentryposition = (int) $_REQUEST['sloodleentryposition'];
// Store the type in session data for next time we're adding a slide
$_SESSION['sloodle_presenter_add_type'] = $sloodleentrytype;
$this->presenter->add_entry($sloodleentryurl, $sloodleentrytype, $sloodleentryname, $sloodleentryposition);
}
}
$redirect = true;
}
// Has an existing entry been edited?
if (isset($_REQUEST['sloodleeditentry'])) {
$sloodleentryid = (int) $_REQUEST['sloodleentryid'];
$sloodleentryurl = sloodle_clean_for_db($_REQUEST['sloodleentryurl']);
$sloodleentrytype = sloodle_clean_for_db($_REQUEST['sloodleentrytype']);
$sloodleentryname = sloodle_clean_for_db($_REQUEST['sloodleentryname']);
$sloodleentryposition = (int) $_REQUEST['sloodleentryposition'];
$this->presenter->edit_entry($sloodleentryid, $sloodleentryurl, $sloodleentrytype, $sloodleentryname, $sloodleentryposition);
$redirect = true;
}
// Redirect back to the edit page -- this is used to get rid of intermediate parameters.
if ($redirect && headers_sent() == false) {
header("Location: " . SLOODLE_WWWROOT . "/view.php?id={$this->cm->id}&mode=edit");
exit;
}
}
}
/**
* Sets the list of objects in this Distributor
* @param array $objects An array of strings, each string containing the name of an object in the Distributor.
* @return bool True if successful, or false if not
*/
function set_objects($objects)
{
// Delete all existing records for this Distributor
delete_records('sloodle_distributor_entry', 'distributorid', $this->sloodle_distributor_instance->id);
// Go through each new entry
$result = true;
foreach ($objects as $o) {
// Construct the new record
$rec = new stdClass();
$rec->distributorid = $this->sloodle_distributor_instance->id;
$rec->name = sloodle_clean_for_db($o);
// Insert it
if (!insert_record('sloodle_distributor_entry', $rec)) {
$result = false;
}
}
return $result;
}
