GRN2-253: Added the ability to share rooms across multiple users (bigbluebutton#912)

* Added ability to share rooms with other users

* Fixed testcases

Author: farhatahmad

app/assets/javascripts/application.js

@@ -34,4 +34,5 @@
 //= require jquery-ui/widget
 //= require jquery-ui/widgets/sortable
 //= require pickr.min.js
+//= require bootstrap-select.min.js
 //= require_tree .

app/assets/javascripts/room.js

@@ -60,6 +60,69 @@ $(document).on('turbolinks:load', function(){
     $(".delete-room").click(function() {
       showDeleteRoom(this)
     })
+
+    $('.selectpicker').selectpicker({
+      liveSearchPlaceholder: "Start searching..."
+    });
+    // Fixes turbolinks issue with bootstrap select
+    $(window).trigger('load.bs.select.data-api');
+
+    $(".share-room").click(function() {
+      // Update the path of save button
+      $("#save-access").attr("data-path", $(this).data("path"))
+
+      // Get list of users shared with and display them
+      displaySharedUsers($(this).data("users-path"))
+    })
+
+    $("#shareRoomModal").on("show.bs.modal", function() {
+      $(".selectpicker").selectpicker('val','')
+    })
+
+    $(".bootstrap-select").on("click", function() {
+      $(".bs-searchbox").siblings().hide()
+    })
+
+    $(".bs-searchbox input").on("input", function() {
+      if ($(".bs-searchbox input").val() == '' || $(".bs-searchbox input").val().length < 3) {
+        $(".bs-searchbox").siblings().hide()
+      } else {
+        $(".bs-searchbox").siblings().show()
+      }
+    })
+
+    $(".remove-share-room").click(function() {
+      $("#remove-shared-confirm").parent().attr("action", $(this).data("path"))
+    })
+
+    // User selects an option from the Room Access dropdown
+    $(".bootstrap-select").on("changed.bs.select", function(){
+      // Get the uid of the selected user
+      let uid = $(".selectpicker").selectpicker('val')
+
+      // If the value was changed to blank, ignore it
+      if (uid == "") return
+
+      let currentListItems = $("#user-list li").toArray().map(user => $(user).data("uid"))
+
+      // Check to make sure that the user is not already there
+      if (!currentListItems.includes(uid)) {
+        // Create the faded list item and display it
+        let option = $("option[value='" + uid + "']")
+
+        let listItem = document.createElement("li")
+        listItem.setAttribute('class', 'list-group-item text-left not-saved add-access');
+        listItem.setAttribute("data-uid", uid)
+  
+        let spanItem = "<span class='avatar float-left mr-2'>" + option.text().charAt(0) + "</span> <span class='shared-user'>" +
+          option.text() + " <span class='text-muted'>" + option.data("subtext") + "</span></span>" + 
+          "<span class='text-primary float-right shared-user cursor-pointer' onclick='removeSharedUser(this)'><i class='fas fa-times'></i></span>"
+        
+        listItem.innerHTML = spanItem
+  
+        $("#user-list").append(listItem)
+      }
+    })
   }
 });
 
@@ -150,3 +213,44 @@ function ResetAccessCode(){
   $("#create-room-access-code").text(getLocalizedString("modal.create_room.access_code_placeholder"))
   $("#room_access_code").val(null)
 }
+
+function saveAccessChanges() {
+  let listItemsToAdd = $("#user-list li:not(.remove-shared)").toArray().map(user => $(user).data("uid"))
+
+  $.post($("#save-access").data("path"), {add: listItemsToAdd})
+}
+
+// Get list of users shared with and display them
+function displaySharedUsers(path) {
+  $.get(path, function(users) {
+    // Create list element and add to user list
+    var user_list_html = ""
+
+    users.forEach(function(user) {
+      user_list_html += "<li class='list-group-item text-left' data-uid='" + user.uid + "'>"
+
+      if (user.image) {
+        user_list_html += "<img id='user-image' class='avatar float-left mr-2' src='" + user.image + "'></img>"
+      } else {
+        user_list_html += "<span class='avatar float-left mr-2'>" + user.name.charAt(0) + "</span>"
+      }
+      user_list_html += "<span class='shared-user'>" + user.name + "<span class='text-muted ml-1'>" + user.uid + "</span></span>"
+      user_list_html += "<span class='text-primary float-right shared-user cursor-pointer' onclick='removeSharedUser(this)'><i class='fas fa-times'></i></span>"
+      user_list_html += "</li>"
+    })
+    
+    $("#user-list").html(user_list_html)
+  });
+}
+
+// Removes the user from the list of shared users
+function removeSharedUser(target) {
+  let parentLI = target.closest("li")
+
+  if (parentLI.classList.contains("not-saved")) {
+    parentLI.parentNode.removeChild(parentLI)
+  } else {
+    parentLI.removeChild(target)
+    parentLI.classList.add("remove-shared")
+  }
+}

app/assets/stylesheets/application.scss

@@ -36,14 +36,16 @@
 @import "tabler-custom";
 @import "font-awesome-sprockets";
 @import "font-awesome";
+@import "monolith.min.scss";
+@import "bootstrap-select.min.css";
 
 @import "utilities/variables";
 @import "admins";
 @import "main";
 @import "rooms";
 @import "sessions";
-@import "monolith.min.scss";
 @import "utilities/fonts";
+@import "users";
 
 * {
   outline: none !important;

app/assets/stylesheets/rooms.scss

@@ -83,3 +83,20 @@
   margin-top: -6rem;
   font-size: 5rem;
 }
+
+.bootstrap-select .dropdown-menu li.active small.text-muted{
+  color: #9aa0ac !important
+}
+
+.not-saved {
+  color: grey;
+  background: rgba(0, 40, 100, 0.12);
+}
+
+.dropdown-menu.show {
+  min-height: 0px !important;
+}
+
+.remove-shared {
+  text-decoration: line-through;
+}

app/assets/stylesheets/users.scss

@@ -21,4 +21,12 @@
 
 .user-role-tag{
     color: white !important;
+}
+
+.shared-user {
+  line-height: 30px;
+}
+
+.bootstrap-select {
+  border: 1px solid rgba(0, 40, 100, 0.12);
 }

app/controllers/admins_controller.rb

@@ -22,6 +22,7 @@ class AdminsController < ApplicationController
   include Emailer
   include Recorder
   include Rolify
+  include Populator
 
   manage_users = [:edit_user, :promote, :demote, :ban_user, :unban_user, :approve, :reset]
   manage_deleted_users = [:undelete]
@@ -49,11 +50,7 @@ def site_settings
 
   # GET /admins/server_recordings
   def server_recordings
-    server_rooms = if Rails.configuration.loadbalanced_configuration
-      Room.includes(:owner).where(users: { provider: @user_domain }).pluck(:bbb_id)
-    else
-      Room.pluck(:bbb_id)
-    end
+    server_rooms = rooms_list_for_recordings
 
     @search, @order_column, @order_direction, recs =
       all_recordings(server_rooms, params.permit(:search, :column, :direction), true, true)
@@ -67,13 +64,9 @@ def server_rooms
     @order_column = params[:column] && params[:direction] != "none" ? params[:column] : "created_at"
     @order_direction = params[:direction] && params[:direction] != "none" ? params[:direction] : "DESC"
 
-    server_rooms = if Rails.configuration.loadbalanced_configuration
-      Room.includes(:owner).where(users: { provider: @user_domain })
-          .admins_search(@search)
-          .admins_order(@order_column, @order_direction)
-    else
-      Room.all.admins_search(@search).admins_order(@order_column, @order_direction)
-    end
+    server_rooms = server_rooms_list
+
+    @user_list = shared_user_list if shared_access_allowed
 
     @pagy, @rooms = pagy_array(server_rooms)
   end

app/controllers/application_controller.rb

@@ -172,6 +172,12 @@ def configured_providers
   end
   helper_method :configured_providers
 
+  # Indicates whether users are allowed to share rooms
+  def shared_access_allowed
+    @settings.get_value("Shared Access") == "true"
+  end
+  helper_method :shared_access_allowed
+
   # Parses the url for the user domain
   def parse_user_domain(hostname)
     return hostname.split('.').first if Rails.configuration.url_host.empty?

app/controllers/concerns/populator.rb

@@ -0,0 +1,54 @@
+# frozen_string_literal: true
+
+# BigBlueButton open source conferencing system - http://www.bigbluebutton.org/.
+#
+# Copyright (c) 2018 BigBlueButton Inc. and by respective authors (see below).
+#
+# This program is free software; you can redistribute it and/or modify it under the
+# terms of the GNU Lesser General Public License as published by the Free Software
+# Foundation; either version 3.0 of the License, or (at your option) any later
+# version.
+#
+# BigBlueButton 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 Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License along
+# with BigBlueButton; if not, see <http://www.gnu.org/licenses/>.
+
+module Populator
+  extend ActiveSupport::Concern
+
+  # Returns a list of rooms that are in the same context of the current user
+  def server_rooms_list
+    if Rails.configuration.loadbalanced_configuration
+      Room.includes(:owner).where(users: { provider: @user_domain })
+          .admins_search(@search)
+          .admins_order(@order_column, @order_direction)
+    else
+      Room.all.admins_search(@search).admins_order(@order_column, @order_direction)
+    end
+  end
+
+  # Returns list of rooms needed to get the recordings on the server
+  def rooms_list_for_recordings
+    if Rails.configuration.loadbalanced_configuration
+      Room.includes(:owner).where(users: { provider: @user_domain }).pluck(:bbb_id)
+    else
+      Room.pluck(:bbb_id)
+    end
+  end
+
+  # Returns a list of users that are in the same context of the current user
+  def shared_user_list
+    roles_can_appear = []
+    Role.where(provider: @user_domain).each do |role|
+      roles_can_appear << role.name if role.get_permission("can_appear_in_share_list") && role.name != "super_admin"
+    end
+
+    initial_list = User.where.not(uid: current_user.uid).with_highest_priority_role(roles_can_appear)
+
+    return initial_list unless Rails.configuration.loadbalanced_configuration
+    initial_list.where(provider: @user_domain)
+  end
+end

app/controllers/concerns/rolify.rb

@@ -142,7 +142,7 @@ def update_permissions(role)
     role_params = params.require(:role).permit(:name)
     permission_params = params.require(:role).permit(:can_create_rooms, :send_promoted_email,
       :send_demoted_email, :can_edit_site_settings, :can_edit_roles, :can_manage_users,
-      :can_manage_rooms_recordings, :colour)
+      :can_manage_rooms_recordings, :can_appear_in_share_list, :colour)
 
     permission_params.transform_values! do |v|
       if v == "0"