message/index.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * A page displaying the user's contacts and messages
  19  *
  20  * @package    core_message
  21  * @copyright  2010 Andrew Davis
  22  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 require_once('../config.php');
  26 require_once('lib.php');
  27 require_once('send_form.php');
  28
  29 require_login(0, false);
  30
  31 if (isguestuser()) {
  32     redirect($CFG->wwwroot);
  33 }
  34
  35 if (empty($CFG->messaging)) {
  36     print_error('disabled', 'message');
  37 }
  38
  39 //'viewing' is the preferred URL parameter but we'll still accept usergroup in case its referenced externally
  40 $usergroup = optional_param('usergroup', MESSAGE_VIEW_UNREAD_MESSAGES, PARAM_ALPHANUMEXT);
  41 $viewing = optional_param('viewing', $usergroup, PARAM_ALPHANUMEXT);
  42
  43 $history   = optional_param('history', MESSAGE_HISTORY_SHORT, PARAM_INT);
  44 $search    = optional_param('search', '', PARAM_CLEAN); //TODO: use PARAM_RAW, but make sure we use s() and p() properly
  45
  46 //the same param as 1.9 and the param we have been logging. Use this parameter.
  47 $user1id   = optional_param('user1', $USER->id, PARAM_INT);
  48 //2.0 shipped using this param. Retaining it only for compatibility. It should be removed.
  49 $user1id   = optional_param('user', $user1id, PARAM_INT);
  50
  51 //the same param as 1.9 and the param we have been logging. Use this parameter.
  52 $user2id   = optional_param('user2', 0, PARAM_INT);
  53 //The class send_form supplies the receiving user id as 'id'
  54 $user2id   = optional_param('id', $user2id, PARAM_INT);
  55
  56 $addcontact     = optional_param('addcontact',     0, PARAM_INT); // adding a contact
  57 $removecontact  = optional_param('removecontact',  0, PARAM_INT); // removing a contact
  58 $blockcontact   = optional_param('blockcontact',   0, PARAM_INT); // blocking a contact
  59 $unblockcontact = optional_param('unblockcontact', 0, PARAM_INT); // unblocking a contact
  60 $deletemessageid = optional_param('deletemessageid', 0, PARAM_INT);
  61 $deletemessageconfirm = optional_param('deletemessageconfirm', 0, PARAM_BOOL);
  62 if ($deletemessageid) {
  63     $deletemessagetype = required_param('deletemessagetype', PARAM_ALPHAEXT);
  64 }
  65
  66 //for search
  67 $advancedsearch = optional_param('advanced', 0, PARAM_INT);
  68
  69 //if they have numerous contacts or are viewing course participants we might need to page through them
  70 $page = optional_param('page', 0, PARAM_INT);
  71
  72 $url = new moodle_url('/message/index.php', array('user1' => $user1id));
  73
  74 if ($user2id !== 0) {
  75     $url->param('user2', $user2id);
  76
  77     //Switch view back to contacts if:
  78     //1) theyve searched and selected a user
  79     //2) they've viewed recent messages or notifications and clicked through to a user
  80     if ($viewing == MESSAGE_VIEW_SEARCH || $viewing == MESSAGE_VIEW_RECENT_NOTIFICATIONS) {
  81         $viewing = MESSAGE_VIEW_CONTACTS;
  82     }
  83 }
  84
  85 if ($viewing != MESSAGE_VIEW_UNREAD_MESSAGES) {
  86     $url->param('viewing', $viewing);
  87 }
  88
  89 $PAGE->set_url($url);
  90
  91 // Disable message notification popups while the user is viewing their messages
  92 $PAGE->set_popup_notification_allowed(false);
  93
  94 $user1 = null;
  95 $currentuser = true;
  96 $showactionlinks = true;
  97 if ($user1id != $USER->id) {
  98     $user1 = $DB->get_record('user', array('id' => $user1id));
  99     if (!$user1) {
 100         print_error('invaliduserid');
 101     }
 102     $currentuser = false;//if we're looking at someone else's messages we need to lock/remove some UI elements
 103     $showactionlinks = false;
 104 } else {
 105     $user1 = $USER;
 106 }
 107 unset($user1id);
 108
 109 $user2 = null;
 110 if (!empty($user2id)) {
 111     $user2 = core_user::get_user($user2id);
 112     if (!$user2) {
 113         print_error('invaliduserid');
 114     }
 115 }
 116 unset($user2id);
 117
 118 $user2realuser = !empty($user2) && core_user::is_real_user($user2->id);
 119 $showactionlinks = $showactionlinks && $user2realuser;
 120 $systemcontext = context_system::instance();
 121
 122 if ($currentuser === false && !has_capability('moodle/site:readallmessages', $systemcontext)) {
 123     print_error('accessdenied','admin');
 124 }
 125
 126 if (substr($viewing, 0, 7) == MESSAGE_VIEW_COURSE) {
 127     $courseid = intval(substr($viewing, 7));
 128     require_login($courseid);
 129     require_capability('moodle/course:viewparticipants', context_course::instance($courseid));
 130     $PAGE->set_pagelayout('incourse');
 131 } else {
 132     $PAGE->set_pagelayout('standard');
 133 }
 134 // Page context should always be set to user.
 135 $PAGE->set_context(context_user::instance($user1->id));
 136 if (!empty($user1->id) && $user1->id != $USER->id) {
 137     $PAGE->navigation->extend_for_user($user1);
 138 }
 139 if (!empty($user2->id) && $user2realuser && ($user2->id != $USER->id)) {
 140     $PAGE->navigation->extend_for_user($user2);
 141 }
 142
 143 $strmessages = get_string('messages', 'message');
 144 if ($user2realuser) {
 145     $user2fullname = fullname($user2);
 146
 147     $PAGE->set_title("$strmessages: $user2fullname");
 148     $PAGE->set_heading("$strmessages: $user2fullname");
 149 } else {
 150     $PAGE->set_title("{$SITE->shortname}: $strmessages");
 151     $PAGE->set_heading("{$SITE->shortname}: $strmessages");
 152 }
 153
 154 /// Process any contact maintenance requests there may be
 155 if ($addcontact and confirm_sesskey()) {
 156     message_add_contact($addcontact);
 157     redirect($CFG->wwwroot . '/message/index.php?viewing=contacts&id='.$addcontact);
 158 }
 159 if ($removecontact and confirm_sesskey()) {
 160     message_remove_contact($removecontact);
 161 }
 162 if ($blockcontact and confirm_sesskey()) {
 163     message_block_contact($blockcontact);
 164 }
 165 if ($unblockcontact and confirm_sesskey()) {
 166     message_unblock_contact($unblockcontact);
 167 }
 168 if ($deletemessageid and confirm_sesskey()) {
 169     // Check that the message actually exists.
 170     if ($message = $DB->get_record($deletemessagetype, array('id' => $deletemessageid))) {
 171         // Check that we are allowed to delete this message.
 172         if (message_can_delete_message($message, $user1->id)) {
 173             if (!$deletemessageconfirm) {
 174                 $confirmurl = new moodle_url('/message/index.php', array('user1' => $user1->id, 'user2' => $user2->id,
 175                     'viewing' => $viewing, 'deletemessageid' => $message->id, 'deletemessagetype' => $deletemessagetype,
 176                     'deletemessageconfirm' => 1, 'sesskey' => sesskey()));
 177                 $confirmbutton = new single_button($confirmurl, get_string('delete'), 'post');
 178                 $strdeletemessage = get_string('deletemessage', 'message');
 179                 $PAGE->set_title($strdeletemessage);
 180                 echo $OUTPUT->header();
 181                 echo $OUTPUT->heading($strdeletemessage);
 182                 echo $OUTPUT->confirm(get_string('deletemessageconfirmation', 'message'), $confirmbutton, $url);
 183                 echo $OUTPUT->footer();
 184                 exit();
 185             }
 186             message_delete_message($message, $user1->id);
 187         }
 188     }
 189     redirect($url);
 190 }
 191
 192 //was a message sent? Do NOT allow someone looking at someone else's messages to send them.
 193 $messageerror = null;
 194 if ($currentuser && !empty($user2) && has_capability('moodle/site:sendmessage', $systemcontext)) {
 195     // Check that the user is not blocking us!!
 196     if ($contact = $DB->get_record('message_contacts', array('userid' => $user2->id, 'contactid' => $user1->id))) {
 197         if ($contact->blocked and !has_capability('moodle/site:readallmessages', $systemcontext)) {
 198             $messageerror = get_string('userisblockingyou', 'message');
 199         }
 200     }
 201     $userpreferences = get_user_preferences(NULL, NULL, $user2->id);
 202
 203     if (!empty($userpreferences['message_blocknoncontacts'])) {  // User is blocking non-contacts
 204         if (empty($contact)) {   // We are not a contact!
 205             $messageerror = get_string('userisblockingyounoncontact', 'message', fullname($user2));
 206         }
 207     }
 208
 209     if (empty($messageerror)) {
 210         $mform = new send_form();
 211         $defaultmessage = new stdClass;
 212         $defaultmessage->id = $user2->id;
 213         $defaultmessage->viewing = $viewing;
 214         $defaultmessage->message = '';
 215
 216         //Check if the current user has sent a message
 217         $data = $mform->get_data();
 218         if (!empty($data) && !empty($data->message)) {
 219             if (!confirm_sesskey()) {
 220                 print_error('invalidsesskey');
 221             }
 222             $messageid = message_post_message($user1, $user2, $data->message, FORMAT_MOODLE);
 223             if (!empty($messageid)) {
 224                 //including the id of the user sending the message in the logged URL so the URL works for admins
 225                 //note message ID may be misleading as the message may potentially get a different ID when moved from message to message_read
 226                 redirect($CFG->wwwroot . '/message/index.php?viewing='.$viewing.'&id='.$user2->id);
 227             }
 228         }
 229     }
 230 }
 231
 232 $strmessages = get_string('messages', 'message');
 233 if ($user2realuser) {
 234     $user2fullname = fullname($user2);
 235
 236     $PAGE->set_title("$strmessages: $user2fullname");
 237 } else {
 238     $PAGE->set_title("{$SITE->shortname}: $strmessages");
 239 }
 240 $PAGE->set_heading(fullname($user1));
 241
 242 // Remove the user node from the main navigation for this page.
 243 $usernode = $PAGE->navigation->find('users', null);
 244 $usernode->remove();
 245
 246 $settings = $PAGE->settingsnav->find('messages', null);
 247 // Add the user we are contacting to the breadcrumb.
 248 if (!empty($user2realuser)) {
 249     $usernode = $settings->add(fullname($user2), $url);
 250     $usernode->make_active();
 251 } else {
 252     $settings->make_active();
 253 }
 254
 255 //now the page contents
 256 echo $OUTPUT->header();
 257
 258 echo $OUTPUT->box_start('message');
 259
 260 $countunread = 0; //count of unread messages from $user2
 261 $countunreadtotal = 0; //count of unread messages from all users
 262
 263 //we're dealing with unread messages early so the contact list will accurately reflect what is read/unread
 264 $viewingnewmessages = false;
 265 if (!empty($user2)) {
 266     //are there any unread messages from $user2
 267     $countunread = message_count_unread_messages($user1, $user2);
 268     if ($countunread>0) {
 269         //mark the messages we're going to display as read
 270         message_mark_messages_read($user1->id, $user2->id);
 271          if($viewing == MESSAGE_VIEW_UNREAD_MESSAGES) {
 272              $viewingnewmessages = true;
 273          }
 274     }
 275 }
 276 $countunreadtotal = message_count_unread_messages($user1);
 277
 278 if ($currentuser && $countunreadtotal == 0 && $viewing == MESSAGE_VIEW_UNREAD_MESSAGES && empty($user2)) {
 279     // If the user has no unread messages, show the search box.
 280     // We don't do this when a user is viewing another user's messages as search doesn't
 281     // handle user A searching user B's messages properly.
 282     $viewing = MESSAGE_VIEW_SEARCH;
 283 }
 284
 285 $blockedusers = message_get_blocked_users($user1, $user2);
 286 $countblocked = count($blockedusers);
 287
 288 list($onlinecontacts, $offlinecontacts, $strangers) = message_get_contacts($user1, $user2);
 289
 290 message_print_contact_selector($countunreadtotal, $viewing, $user1, $user2, $blockedusers, $onlinecontacts, $offlinecontacts, $strangers, $showactionlinks, $page);
 291
 292 echo html_writer::start_tag('div', array('class' => 'messagearea mdl-align'));
 293     if (!empty($user2)) {
 294
 295         echo html_writer::start_tag('div', array('class' => 'mdl-left messagehistory'));
 296
 297             $visible = 'visible';
 298             $hidden = 'hiddenelement'; //cant just use hidden as mform adds that class to its fieldset for something else
 299
 300             $recentlinkclass = $recentlabelclass = $historylinkclass = $historylabelclass = $visible;
 301             if ($history == MESSAGE_HISTORY_ALL) {
 302                 $displaycount = 0;
 303
 304                 $recentlabelclass = $historylinkclass = $hidden;
 305             } else if($viewingnewmessages) {
 306                 //if user is viewing new messages only show them the new messages
 307                 $displaycount = $countunread;
 308
 309                 $recentlabelclass = $historylabelclass = $hidden;
 310             } else {
 311                 //default to only showing the last few messages
 312                 $displaycount = MESSAGE_SHORTVIEW_LIMIT;
 313
 314                 if ($countunread>MESSAGE_SHORTVIEW_LIMIT) {
 315                     $displaycount = $countunread;
 316                 }
 317
 318                 $recentlinkclass = $historylabelclass = $hidden;
 319             }
 320
 321             $messagehistorylink =  html_writer::start_tag('div', array('class' => 'mdl-align messagehistorytype'));
 322                 $messagehistorylink .= html_writer::link($PAGE->url->out(false).'&history='.MESSAGE_HISTORY_ALL,
 323                     get_string('messagehistoryfull','message'),
 324                     array('class' => $historylinkclass));
 325
 326                 $messagehistorylink .=  html_writer::start_tag('span', array('class' => $historylabelclass));
 327                     $messagehistorylink .= get_string('messagehistoryfull','message');
 328                 $messagehistorylink .= html_writer::end_tag('span');
 329
 330                 $messagehistorylink .= '&nbsp;|&nbsp;'.html_writer::link($PAGE->url->out(false).'&history='.MESSAGE_HISTORY_SHORT,
 331                     get_string('mostrecent','message'),
 332                     array('class' => $recentlinkclass));
 333
 334                 $messagehistorylink .=  html_writer::start_tag('span', array('class' => $recentlabelclass));
 335                     $messagehistorylink .= get_string('mostrecent','message');
 336                 $messagehistorylink .= html_writer::end_tag('span');
 337
 338                 if ($viewingnewmessages) {
 339                     $messagehistorylink .=  '&nbsp;|&nbsp;'.html_writer::start_tag('span');//, array('class' => $historyclass)
 340                         $messagehistorylink .= get_string('unreadnewmessages','message',$displaycount);
 341                     $messagehistorylink .= html_writer::end_tag('span');
 342                 }
 343
 344             $messagehistorylink .= html_writer::end_tag('div');
 345
 346             message_print_message_history($user1, $user2, $search, $displaycount, $messagehistorylink, $viewingnewmessages, $showactionlinks);
 347         echo html_writer::end_tag('div');
 348
 349         //send message form
 350         if ($currentuser && has_capability('moodle/site:sendmessage', $systemcontext) && $user2realuser) {
 351             echo html_writer::start_tag('div', array('class' => 'mdl-align messagesend'));
 352                 if (!empty($messageerror)) {
 353                     echo html_writer::tag('span', $messageerror, array('id' => 'messagewarning'));
 354                 } else {
 355                     // Display a warning if the current user is blocking non-contacts and is about to message to a non-contact
 356                     // Otherwise they may wonder why they never get a reply
 357                     $blocknoncontacts = get_user_preferences('message_blocknoncontacts', '', $user1->id);
 358                     if (!empty($blocknoncontacts)) {
 359                         $contact = $DB->get_record('message_contacts', array('userid' => $user1->id, 'contactid' => $user2->id));
 360                         if (empty($contact)) {
 361                             $msg = get_string('messagingblockednoncontact', 'message', fullname($user2));
 362                             echo html_writer::tag('span', $msg, array('id' => 'messagewarning'));
 363                         }
 364                     }
 365
 366                     $mform = new send_form();
 367                     $defaultmessage = new stdClass;
 368                     $defaultmessage->id = $user2->id;
 369                     $defaultmessage->viewing = $viewing;
 370                     $defaultmessage->message = '';
 371                     //$defaultmessage->messageformat = FORMAT_MOODLE;
 372                     $mform->set_data($defaultmessage);
 373                     $mform->display();
 374                 }
 375             echo html_writer::end_tag('div');
 376         }
 377     } else if ($viewing == MESSAGE_VIEW_SEARCH) {
 378         message_print_search($advancedsearch, $user1);
 379     } else if ($viewing == MESSAGE_VIEW_RECENT_CONVERSATIONS) {
 380         message_print_recent_conversations($user1, false, $showactionlinks);
 381     } else if ($viewing == MESSAGE_VIEW_RECENT_NOTIFICATIONS) {
 382         message_print_recent_notifications($user1);
 383     }
 384 echo html_writer::end_tag('div');
 385
 386 echo $OUTPUT->box_end();
 387
 388 echo $OUTPUT->footer();
 389
 390