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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* A page displaying the user's contacts and messages
*
* @package core_message
* @copyright 2010 Andrew Davis
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once('../config.php');
require_once('lib.php');
require_once('send_form.php');
require_login(0, false);
if (isguestuser()) {
redirect($CFG->wwwroot);
}
if (empty($CFG->messaging)) {
print_error('disabled', 'message');
}
//'viewing' is the preferred URL parameter but we'll still accept usergroup in case its referenced externally
$usergroup = optional_param('usergroup', MESSAGE_VIEW_UNREAD_MESSAGES, PARAM_ALPHANUMEXT);
$viewing = optional_param('viewing', $usergroup, PARAM_ALPHANUMEXT);
$history = optional_param('history', MESSAGE_HISTORY_SHORT, PARAM_INT);
$search = optional_param('search', '', PARAM_CLEAN); //TODO: use PARAM_RAW, but make sure we use s() and p() properly
//the same param as 1.9 and the param we have been logging. Use this parameter.
$user1id = optional_param('user1', $USER->id, PARAM_INT);
//2.0 shipped using this param. Retaining it only for compatibility. It should be removed.
$user1id = optional_param('user', $user1id, PARAM_INT);
//the same param as 1.9 and the param we have been logging. Use this parameter.
$user2id = optional_param('user2', 0, PARAM_INT);
//The class send_form supplies the receiving user id as 'id'
$user2id = optional_param('id', $user2id, PARAM_INT);
$addcontact = optional_param('addcontact', 0, PARAM_INT); // adding a contact
$removecontact = optional_param('removecontact', 0, PARAM_INT); // removing a contact
$blockcontact = optional_param('blockcontact', 0, PARAM_INT); // blocking a contact
$unblockcontact = optional_param('unblockcontact', 0, PARAM_INT); // unblocking a contact
//for search
$advancedsearch = optional_param('advanced', 0, PARAM_INT);
//if they have numerous contacts or are viewing course participants we might need to page through them
$page = optional_param('page', 0, PARAM_INT);
$url = new moodle_url('/message/index.php');
if ($user2id !== 0) {
$url->param('user2', $user2id);
}
if ($user2id !== 0) {
//Switch view back to contacts if:
//1) theyve searched and selected a user
//2) they've viewed recent messages or notifications and clicked through to a user
if ($viewing == MESSAGE_VIEW_SEARCH || $viewing == MESSAGE_VIEW_SEARCH || $viewing == MESSAGE_VIEW_RECENT_NOTIFICATIONS) {
$viewing = MESSAGE_VIEW_CONTACTS;
}
}
$url->param('viewing', $viewing);
$PAGE->set_url($url);
$PAGE->set_context(get_context_instance(CONTEXT_USER, $USER->id));
$PAGE->navigation->extend_for_user($USER);
$PAGE->set_pagelayout('course');
// Disable message notification popups while the user is viewing their messages
$PAGE->set_popup_notification_allowed(false);
$context = get_context_instance(CONTEXT_SYSTEM);
$user1 = null;
$currentuser = true;
$showcontactactionlinks = true;
if ($user1id != $USER->id) {
$user1 = $DB->get_record('user', array('id' => $user1id));
if (!$user1) {
print_error('invaliduserid');
}
$currentuser = false;//if we're looking at someone else's messages we need to lock/remove some UI elements
$showcontactactionlinks = false;
} else {
$user1 = $USER;
}
unset($user1id);
$user2 = null;
if (!empty($user2id)) {
$user2 = $DB->get_record("user", array("id" => $user2id));
if (!$user2) {
print_error('invaliduserid');
}
}
unset($user2id);
// Is the user involved in the conversation?
// Do they have the ability to read other user's conversations?
if (!message_current_user_is_involved($user1, $user2) && !has_capability('moodle/site:readallmessages', $context)) {
print_error('accessdenied','admin');
}
/// Process any contact maintenance requests there may be
if ($addcontact and confirm_sesskey()) {
add_to_log(SITEID, 'message', 'add contact', 'index.php?user1='.$addcontact.'&amp;user2='.$USER->id, $addcontact);
message_add_contact($addcontact);
redirect($CFG->wwwroot . '/message/index.php?viewing=contacts&id='.$addcontact);
}
if ($removecontact and confirm_sesskey()) {
add_to_log(SITEID, 'message', 'remove contact', 'index.php?user1='.$removecontact.'&amp;user2='.$USER->id, $removecontact);
message_remove_contact($removecontact);
}
if ($blockcontact and confirm_sesskey()) {
add_to_log(SITEID, 'message', 'block contact', 'index.php?user1='.$blockcontact.'&amp;user2='.$USER->id, $blockcontact);
message_block_contact($blockcontact);
}
if ($unblockcontact and confirm_sesskey()) {
add_to_log(SITEID, 'message', 'unblock contact', 'index.php?user1='.$unblockcontact.'&amp;user2='.$USER->id, $unblockcontact);
message_unblock_contact($unblockcontact);
}
//was a message sent? Do NOT allow someone looking at someone else's messages to send them.
$messageerror = null;
if ($currentuser && !empty($user2) && has_capability('moodle/site:sendmessage', $context)) {
// Check that the user is not blocking us!!
if ($contact = $DB->get_record('message_contacts', array('userid' => $user2->id, 'contactid' => $user1->id))) {
if ($contact->blocked and !has_capability('moodle/site:readallmessages', $context)) {
$messageerror = get_string('userisblockingyou', 'message');
}
}
$userpreferences = get_user_preferences(NULL, NULL, $user2->id);
if (!empty($userpreferences['message_blocknoncontacts'])) { // User is blocking non-contacts
if (empty($contact)) { // We are not a contact!
$messageerror = get_string('userisblockingyounoncontact', 'message', fullname($user2));
}
}
if (empty($messageerror)) {
$mform = new send_form();
$defaultmessage = new stdClass;
$defaultmessage->id = $user2->id;
$defaultmessage->message = '';
//Check if the current user has sent a message
$data = $mform->get_data();
if (!empty($data) && !empty($data->message)) {
if (!confirm_sesskey()) {
print_error('invalidsesskey');
}
$messageid = message_post_message($user1, $user2, $data->message, FORMAT_MOODLE);
if (!empty($messageid)) {
//including the id of the user sending the message in the logged URL so the URL works for admins
//note message ID may be misleading as the message may potentially get a different ID when moved from message to message_read
add_to_log(SITEID, 'message', 'write', 'index.php?user='.$user1->id.'&id='.$user2->id.'&history=1#m'.$messageid, $user1->id);
redirect($CFG->wwwroot . '/message/index.php?viewing='.$viewing.'&id='.$user2->id);
}
}
}
}
$strmessages = get_string('messages', 'message');
if (!empty($user2)) {
$user2fullname = fullname($user2);
$PAGE->set_title("$strmessages: $user2fullname");
$PAGE->set_heading("$strmessages: $user2fullname");
} else {
$PAGE->set_title("{$SITE->shortname}: $strmessages");
$PAGE->set_heading("{$SITE->shortname}: $strmessages");
}
//now the page contents
echo $OUTPUT->header();
echo $OUTPUT->box_start('message');
$countunread = 0; //count of unread messages from $user2
$countunreadtotal = 0; //count of unread messages from all users
//we're dealing with unread messages early so the contact list will accurately reflect what is read/unread
$viewingnewmessages = false;
if (!empty($user2)) {
//are there any unread messages from $user2
$countunread = message_count_unread_messages($user1, $user2);
if ($countunread>0) {
//mark the messages we're going to display as read
message_mark_messages_read($user1->id, $user2->id);
if($viewing == MESSAGE_VIEW_UNREAD_MESSAGES) {
$viewingnewmessages = true;
}
}
}
$countunreadtotal = message_count_unread_messages($user1);
if ($countunreadtotal == 0 && $viewing == MESSAGE_VIEW_UNREAD_MESSAGES && empty($user2)) {
//default to showing the search
$viewing = MESSAGE_VIEW_SEARCH;
}
$blockedusers = message_get_blocked_users($user1, $user2);
$countblocked = count($blockedusers);
list($onlinecontacts, $offlinecontacts, $strangers) = message_get_contacts($user1, $user2);
message_print_contact_selector($countunreadtotal, $viewing, $user1, $user2, $blockedusers, $onlinecontacts, $offlinecontacts, $strangers, $showcontactactionlinks, $page);
echo html_writer::start_tag('div', array('class' => 'messagearea mdl-align'));
if (!empty($user2)) {
echo html_writer::start_tag('div', array('class' => 'mdl-left messagehistory'));
$visible = 'visible';
$hidden = 'hiddenelement'; //cant just use hidden as mform adds that class to its fieldset for something else
$recentlinkclass = $recentlabelclass = $historylinkclass = $historylabelclass = $visible;
if ($history == MESSAGE_HISTORY_ALL) {
$displaycount = 0;
$recentlabelclass = $historylinkclass = $hidden;
} else if($viewingnewmessages) {
//if user is viewing new messages only show them the new messages
$displaycount = $countunread;
$recentlabelclass = $historylabelclass = $hidden;
} else {
//default to only showing the last few messages
$displaycount = MESSAGE_SHORTVIEW_LIMIT;
if ($countunread>MESSAGE_SHORTVIEW_LIMIT) {
$displaycount = $countunread;
}
$recentlinkclass = $historylabelclass = $hidden;
}
$messagehistorylink = html_writer::start_tag('div', array('class' => 'mdl-align messagehistorytype'));
$messagehistorylink .= html_writer::link($PAGE->url->out(false).'&history='.MESSAGE_HISTORY_ALL,
get_string('messagehistoryfull','message'),
array('class' => $historylinkclass));
$messagehistorylink .= html_writer::start_tag('span', array('class' => $historylabelclass));
$messagehistorylink .= get_string('messagehistoryfull','message');
$messagehistorylink .= html_writer::end_tag('span');
$messagehistorylink .= '&nbsp;|&nbsp;'.html_writer::link($PAGE->url->out(false).'&history='.MESSAGE_HISTORY_SHORT,
get_string('mostrecent','message'),
array('class' => $recentlinkclass));
$messagehistorylink .= html_writer::start_tag('span', array('class' => $recentlabelclass));
$messagehistorylink .= get_string('mostrecent','message');
$messagehistorylink .= html_writer::end_tag('span');
if ($viewingnewmessages) {
$messagehistorylink .= '&nbsp;|&nbsp;'.html_writer::start_tag('span');//, array('class' => $historyclass)
$messagehistorylink .= get_string('unreadnewmessages','message',$displaycount);
$messagehistorylink .= html_writer::end_tag('span');
}
$messagehistorylink .= html_writer::end_tag('div');
message_print_message_history($user1, $user2, $search, $displaycount, $messagehistorylink, $viewingnewmessages);
echo html_writer::end_tag('div');
//send message form
if ($currentuser && has_capability('moodle/site:sendmessage', $context)) {
echo html_writer::start_tag('div', array('class' => 'mdl-align messagesend'));
if (!empty($messageerror)) {
echo html_writer::tag('span', $messageerror, array('id' => 'messagewarning'));
} else {
// Display a warning if the current user is blocking non-contacts and is about to message to a non-contact
// Otherwise they may wonder why they never get a reply
$blocknoncontacts = get_user_preferences('message_blocknoncontacts', '', $user1->id);
if (!empty($blocknoncontacts)) {
$contact = $DB->get_record('message_contacts', array('userid' => $user1->id, 'contactid' => $user2->id));
if (empty($contact)) {
$msg = get_string('messagingblockednoncontact', 'message', fullname($user2));
echo html_writer::tag('span', $msg, array('id' => 'messagewarning'));
}
}
$mform = new send_form();
$defaultmessage = new stdClass;
$defaultmessage->id = $user2->id;
$defaultmessage->message = '';
//$defaultmessage->messageformat = FORMAT_MOODLE;
$mform->set_data($defaultmessage);
$mform->display();
}
echo html_writer::end_tag('div');
}
} else if ($viewing == MESSAGE_VIEW_SEARCH) {
message_print_search($advancedsearch, $user1);
} else if ($viewing == MESSAGE_VIEW_RECENT_CONVERSATIONS) {
message_print_recent_conversations($user1);
} else if ($viewing == MESSAGE_VIEW_RECENT_NOTIFICATIONS) {
message_print_recent_notifications($user1);
}
echo html_writer::end_tag('div');
echo $OUTPUT->box_end();
echo $OUTPUT->footer();
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