MDL-47238 core_user: added an error message if guests access user pro…

…files and they aren't allowed to

lang/en/error.php

@@ -262,6 +262,7 @@
 $string['groupingnotaddederror'] = 'Grouping "{$a}" not added';
 $string['groupunknown'] = 'Group {$a} not associated to specified course';
 $string['groupusernotmember'] = 'User is not member of this group.';
+$string['guestcantaccessprofiles'] = 'Guests cannot access user profiles. Log in with a full user account to continue.';
 $string['guestnocomment'] = 'Guests are not allowed to post comments!';
 $string['guestnoeditprofile'] = 'The guest user cannot edit their profile';
 $string['guestnoeditprofileother'] = 'The guest user profile cannot be edited';

user/profile.php

@@ -50,7 +50,14 @@
     require_login();
     if (isguestuser()) {
         $SESSION->wantsurl = $PAGE->url->out(false);
-        redirect(get_login_url());
+
+        $PAGE->set_context(context_system::instance());
+        echo $OUTPUT->header();
+        echo $OUTPUT->confirm(get_string('guestcantaccessprofiles', 'error'),
+                              get_login_url(),
+                              $CFG->wwwroot);
+        echo $OUTPUT->footer();
+        die;
     }
 } else if (!empty($CFG->forcelogin)) {
     require_login();