Merge pull request #14911 from GuiLeme/issue-9789

akka-bbb-apps/src/main/scala/org/bigbluebutton/core/record/events/MeetingConfigurationEvent.scala

@@ -0,0 +1,34 @@
+/**
+ * BigBlueButton open source conferencing system - http://www.bigbluebutton.org/
+ *
+ * Copyright (c) 2017 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/>.
+ *
+ */
+
+package org.bigbluebutton.core.record.events
+
+class MeetingConfigurationEvent extends StarterConfigurationEvent {
+  import MeetingConfigurationEvent._
+
+  setEvent("MeetingConfigurationEvent")
+
+  def setWebcamsOnlyForModerator(webcamsOnlyForModerator: Boolean) {
+    eventMap.put(WEBCAMS_ONLY_FOR_MODERATOR, webcamsOnlyForModerator.toString)
+  }
+}
+
+object MeetingConfigurationEvent {
+  val WEBCAMS_ONLY_FOR_MODERATOR = "webcamsOnlyForModerator"
+}

akka-bbb-apps/src/main/scala/org/bigbluebutton/core/record/events/StarterConfigurationEvent.scala

@@ -0,0 +1,24 @@
+/**
+ * BigBlueButton open source conferencing system - http://www.bigbluebutton.org/
+ *
+ * Copyright (c) 2017 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/>.
+ *
+ */
+
+package org.bigbluebutton.core.record.events
+
+trait StarterConfigurationEvent extends RecordEvent {
+  setModule("CONFIG")
+}

akka-bbb-apps/src/main/scala/org/bigbluebutton/endpoint/redis/RedisRecorderActor.scala

@@ -116,6 +116,7 @@ class RedisRecorderActor(
       case m: RecordStatusResetSysMsg               => handleRecordStatusResetSysMsg(m)
       case m: WebcamsOnlyForModeratorChangedEvtMsg  => handleWebcamsOnlyForModeratorChangedEvtMsg(m)
       case m: MeetingEndingEvtMsg                   => handleEndAndKickAllSysMsg(m)
+      case m: MeetingCreatedEvtMsg                  => handleStarterConfigurations(m)
 
       // Recording
       case m: RecordingChapterBreakSysMsg           => handleRecordingChapterBreakSysMsg(m)
@@ -622,4 +623,10 @@ class RedisRecorderActor(
       log.error("recording database is not available.")
   }
 
+  private def handleStarterConfigurations(msg: MeetingCreatedEvtMsg): Unit = {
+    val ev = new MeetingConfigurationEvent()
+    ev.setWebcamsOnlyForModerator(msg.body.props.usersProp.webcamsOnlyForModerator)
+    record(msg.body.props.meetingProp.intId, ev.toMap().asJava)
+  }
+
 }

bbb-common-web/src/main/java/org/bigbluebutton/api/MeetingService.java

@@ -60,6 +60,7 @@ import org.bigbluebutton.api.messaging.converters.messages.DeletedRecordingMessa
 import org.bigbluebutton.api.messaging.messages.*;
 import org.bigbluebutton.api2.IBbbWebApiGWApp;
 import org.bigbluebutton.api2.domain.UploadedTrack;
+import org.bigbluebutton.common2.msgs.MeetingCreatedEvtMsg;
 import org.bigbluebutton.common2.redis.RedisStorageService;
 import org.bigbluebutton.presentation.PresentationUrlDownloadService;
 import org.bigbluebutton.presentation.imp.SwfSlidesGenerationProgressNotifier;

record-and-playback/core/lib/recordandplayback/generators/events.rb

@@ -112,8 +112,60 @@ module BigBlueButton
       start_events
     end
 
+    def self.to_boolean(obj)
+      return obj.to_s.downcase == "true"
+    end
+
+    def self.is_user_moderator(user_id, list_user_info)
+      user_role = list_user_info[user_id]
+      if !user_role.nil?
+        if user_role == "MODERATOR"
+          return true
+        else
+          return false
+        end
+      end
+      return false
+    end
+
+    def self.get_id_from_filename(filename)
+      return filename.split("/")[-1].split("-")[1]
+    end
+
+    def self.extract_filename_from_userId(userId, filenames_list)
+      filename_return = ""
+      filenames_list.each do |filename|
+        if !filename.match(userId).nil?
+          filename_return = filename
+        end
+      end
+      return filename_return
+    end
+
+    def self.process_webcamsOnlyForModerator(list_user_info, active_videos, inactive_videos, webcamsOnlyForModerator)
+      
+      if webcamsOnlyForModerator
+        list_user_info.each do |user_id, user_role|
+          # If the user is a viewer:
+          if !BigBlueButton::Events.is_user_moderator(user_id, list_user_info)
+            filename = BigBlueButton::Events.extract_filename_from_userId(user_id, active_videos)
+            if filename != ""
+              active_videos.delete(filename)
+              inactive_videos << filename
+            end
+          end
+        end
+      else
+        # If the WebcamsOnlyForModerator is false, all previously inactive videos will become active
+        inactive_videos.each do |filename| 
+          active_videos << filename
+        end
+        inactive_videos.clear
+      end
+    end
+
     # Build a webcam EDL
-    def self.create_webcam_edl(events, archive_dir)
+    def self.create_webcam_edl(events, archive_dir, show_moderator_viewpoint)
       recording = events.at_xpath('/recording')
       meeting_id = recording['meeting_id']
       event = events.at_xpath('/recording/event[position()=1]')
@@ -125,57 +177,203 @@ module BigBlueButton
 
       videos = {}
       active_videos = []
+      inactive_videos = []
       video_edl = []
 
       video_edl << {
         :timestamp => 0,
         :areas => { :webcam => [] }
       }
-
-      events.xpath('/recording/event[@module="WEBCAM" or (@module="bbb-webrtc-sfu" and (@eventname="StartWebRTCShareEvent" or @eventname="StopWebRTCShareEvent"))]').each do |event|
-        timestamp = event['timestamp'].to_i - initial_timestamp
-        # Determine the video filename
-        case event['eventname']
-        when 'StartWebcamShareEvent', 'StopWebcamShareEvent'
-          stream = event.at_xpath('stream').text
-          filename = "#{video_dir}/#{stream}.flv"
-        when 'StartWebRTCShareEvent', 'StopWebRTCShareEvent'
-          uri = event.at_xpath('filename').text
-          filename = "#{video_dir}/#{File.basename(uri)}"
+      list_user_info = {}
+      webcamsOnlyForModerator = false
+      if show_moderator_viewpoint
+        events.xpath('/recording/event[@module="WEBCAM" or (@module="bbb-webrtc-sfu" and (@eventname="StartWebRTCShareEvent" or @eventname="StopWebRTCShareEvent"))]').each do |event|
+          timestamp = event['timestamp'].to_i - initial_timestamp
+          # Determine the video filename
+          case event['eventname']
+          when 'StartWebcamShareEvent', 'StopWebcamShareEvent'
+            stream = event.at_xpath('stream').text
+            filename = "#{video_dir}/#{stream}.flv"
+          when 'StartWebRTCShareEvent', 'StopWebRTCShareEvent'
+            uri = event.at_xpath('filename').text
+            filename = "#{video_dir}/#{File.basename(uri)}"
+          end
+          raise "Couldn't determine webcam filename" if filename.nil?
+  
+          # Add the video to the EDL
+          case event['eventname']
+          when 'StartWebcamShareEvent', 'StartWebRTCShareEvent'
+            videos[filename] = { :timestamp => timestamp }
+            active_videos << filename
+  
+            edl_entry = {
+              :timestamp => timestamp,
+              :areas => { :webcam => [] }
+            }
+            active_videos.each do |filename|
+              edl_entry[:areas][:webcam] << {
+                :filename => filename,
+                :timestamp => timestamp - videos[filename][:timestamp]
+              }
+            end
+            video_edl << edl_entry
+          when 'StopWebcamShareEvent', 'StopWebRTCShareEvent'
+            active_videos.delete(filename)
+  
+            edl_entry = {
+              :timestamp => timestamp,
+              :areas => { :webcam => [] }
+            }
+            active_videos.each do |filename|
+              edl_entry[:areas][:webcam] << {
+                :filename => filename,
+                :timestamp => timestamp - videos[filename][:timestamp]
+              }
+            end
+            video_edl << edl_entry
+          end
         end
-        raise "Couldn't determine webcam filename" if filename.nil?
+      else
+        events.xpath('/recording/event[@module="WEBCAM" or (@module="bbb-webrtc-sfu" and (@eventname="StartWebRTCShareEvent" or @eventname="StopWebRTCShareEvent")) or (@module="PARTICIPANT" and (@eventname="ParticipantStatusChangeEvent" or @eventname="ParticipantJoinEvent")) or @eventname="WebcamsOnlyForModeratorEvent" or @eventname="MeetingConfigurationEvent"]').each do |event|
+          timestamp = event['timestamp'].to_i - initial_timestamp
 
-        # Add the video to the EDL
-        case event['eventname']
-        when 'StartWebcamShareEvent', 'StartWebRTCShareEvent'
-          videos[filename] = { :timestamp => timestamp }
-          active_videos << filename
-
-          edl_entry = {
-            :timestamp => timestamp,
-            :areas => { :webcam => [] }
-          }
-          active_videos.each do |filename|
-            edl_entry[:areas][:webcam] << {
-              :filename => filename,
-              :timestamp => timestamp - videos[filename][:timestamp]
-            }
+          # Determine the video filename if event is as the following
+          case event['eventname']
+          when 'StartWebcamShareEvent', 'StopWebcamShareEvent'
+            stream = event.at_xpath('stream').text
+            filename = "#{video_dir}/#{stream}.flv"
+          when 'StartWebRTCShareEvent', 'StopWebRTCShareEvent'
+            uri = event.at_xpath('filename').text
+            filename = "#{video_dir}/#{File.basename(uri)}"
           end
-          video_edl << edl_entry
-        when 'StopWebcamShareEvent', 'StopWebRTCShareEvent'
-          active_videos.delete(filename)
 
-          edl_entry = {
-            :timestamp => timestamp,
-            :areas => { :webcam => [] }
-          }
-          active_videos.each do |filename|
-            edl_entry[:areas][:webcam] << {
-              :filename => filename,
-              :timestamp => timestamp - videos[filename][:timestamp]
+          # Add the video to the EDL
+          case event['eventname']
+          when 'StartWebcamShareEvent', 'StartWebRTCShareEvent'
+            userId = BigBlueButton::Events.get_id_from_filename(filename)
+            is_in_forbidden_period = webcamsOnlyForModerator
+
+            if (!is_in_forbidden_period) || (is_in_forbidden_period && BigBlueButton::Events.is_user_moderator(userId, list_user_info))
+              
+              videos[filename] = { :timestamp => timestamp }
+              active_videos << filename
+
+
+              edl_entry = {
+                :timestamp => timestamp,
+                :areas => { :webcam => [] }
+              }
+              active_videos.each do |filename|
+                edl_entry[:areas][:webcam] << {
+                  :filename => filename,
+                  :timestamp => timestamp - videos[filename][:timestamp],
+                  :user_id => BigBlueButton::Events.get_id_from_filename(filename)
+                }
+              end
+              video_edl << edl_entry
+            elsif is_in_forbidden_period && !BigBlueButton::Events.is_user_moderator(userId, list_user_info)
+              inactive_videos << filename
+              videos[filename] = { :timestamp => timestamp }
+            end
+          when 'StopWebcamShareEvent', 'StopWebRTCShareEvent'
+            userId = BigBlueButton::Events.get_id_from_filename(filename)
+            is_in_forbidden_period = webcamsOnlyForModerator
+
+            if (!is_in_forbidden_period) || (is_in_forbidden_period && BigBlueButton::Events.is_user_moderator(userId, list_user_info))
+              active_videos.delete(filename)
+
+              edl_entry = {
+                :timestamp => timestamp,
+                :areas => { :webcam => [] }
+              }
+              active_videos.each do |filename|
+                edl_entry[:areas][:webcam] << {
+                  :filename => filename,
+                  :timestamp => timestamp - videos[filename][:timestamp],
+                  :user_id => BigBlueButton::Events.get_id_from_filename(filename)
+                }
+              end
+              video_edl << edl_entry
+            elsif is_in_forbidden_period && !BigBlueButton::Events.is_user_moderator(userId, list_user_info)
+              inactive_videos.delete(filename)
+            end
+          when "ParticipantJoinEvent"
+            user_id = event.at_xpath('userId').text
+            list_user_info[user_id] = event.at_xpath('role').text
+
+          when "ParticipantStatusChangeEvent"
+            is_in_forbidden_period = webcamsOnlyForModerator
+            userId = ""
+            filename_to_add = ""
+
+            if event.at_xpath('status').text == "role" 
+              userId = event.at_xpath('userId').text
+
+              if is_in_forbidden_period && event.at_xpath('value').text == "MODERATOR"
+                filename_to_add = BigBlueButton::Events.extract_filename_from_userId(userId, inactive_videos)
+                if filename_to_add != ""
+                  inactive_videos.delete(filename_to_add)
+                  active_videos << filename_to_add
+
+                  edl_entry = {
+                    :timestamp => timestamp,
+                    :areas => { :webcam => [] }
+                  }
+                  active_videos.each do |filename|
+                    edl_entry[:areas][:webcam] << {
+                      :filename => filename,
+                      :timestamp => timestamp - videos[filename][:timestamp],
+                      :user_id => userId
+                    }
+                  end
+                  video_edl << edl_entry
+                end
+              elsif is_in_forbidden_period && event.at_xpath('value').text == "VIEWER"
+                filename_to_add = BigBlueButton::Events.extract_filename_from_userId(userId, active_videos)
+                if filename != ""
+                  active_videos.delete(filename_to_add)
+                  inactive_videos << filename_to_add
+
+                  edl_entry = {
+                    :timestamp => timestamp,
+                    :areas => { :webcam => [] }
+                  }
+                  active_videos.each do |filename|
+                    edl_entry[:areas][:webcam] << {
+                      :filename => filename,
+                      :timestamp => timestamp - videos[filename][:timestamp],
+                      :user_id => userId
+                    }
+                  end
+                  video_edl << edl_entry
+                end
+              end
+              user_id = event.at_xpath('userId').text
+              list_user_info[user_id] = event.at_xpath('value').text
+            end
+
+          when "MeetingConfigurationEvent"
+            webcamsOnlyForModerator = BigBlueButton::Events.to_boolean(event.at_xpath('webcamsOnlyForModerator').text)
+
+          when "WebcamsOnlyForModeratorEvent"
+            # Change active and inactive videos.
+            BigBlueButton::Events.process_webcamsOnlyForModerator(list_user_info, active_videos, inactive_videos, BigBlueButton::Events.to_boolean(event.at_xpath("webcamsOnlyForModerator").text))
+            
+            edl_entry = {
+              :timestamp => timestamp,
+              :areas => { :webcam => [] }
             }
+            active_videos.each do |filename|
+              edl_entry[:areas][:webcam] << {
+                :filename => filename,
+                :timestamp => timestamp - videos[filename][:timestamp],
+                :user_id => userId
+              }
+            end
+            video_edl << edl_entry
+            
+            webcamsOnlyForModerator = BigBlueButton::Events.to_boolean(event.at_xpath('webcamsOnlyForModerator').text)
           end
-          video_edl << edl_entry
         end
       end
 

record-and-playback/core/lib/recordandplayback/generators/video.rb

@@ -28,7 +28,7 @@ require File.expand_path('../../edl', __FILE__)
 module BigBlueButton
 
 
-  def BigBlueButton.process_webcam_videos(target_dir, raw_archive_dir, output_width, output_height, output_framerate, audio_offset, processed_audio_file, video_formats=['webm'])
+  def BigBlueButton.process_webcam_videos(target_dir, raw_archive_dir, output_width, output_height, output_framerate, audio_offset, processed_audio_file, video_formats=['webm'], show_moderator_viewpoint=false)
     BigBlueButton.logger.info("Processing webcam videos")
 
     # raw_archive_dir already contains meeting_id
@@ -38,7 +38,7 @@ module BigBlueButton
     start_time = BigBlueButton::Events.first_event_timestamp(events)
     end_time = BigBlueButton::Events.last_event_timestamp(events)
     webcam_edl = BigBlueButton::Events.create_webcam_edl(
-                    events, raw_archive_dir)
+                    events, raw_archive_dir, show_moderator_viewpoint)
     user_video_edl = BigBlueButton::Events.edl_match_recording_marks_video(
                     webcam_edl, events, start_time, end_time)
     BigBlueButton::EDL::Video.dump(user_video_edl)

record-and-playback/core/scripts/bigbluebutton.yml

@@ -40,6 +40,11 @@ anonymize_chat: false
 # meta param: meta_bbb-anonymize-chat-moderators (true/false)
 anonymize_chat_moderators: false
 
+# By default, recordings assume the Viewer viewpoint (with all locks)
+# so when webcamsOnlyForModerator=true, only moderators webcams are included in recordings.
+# Use this option to ignore locks and assume Moderator viewpoint instead.
+show_moderator_viewpoint: false
+
 # Sequence of recording steps. Keys are the current step, values
 # are the next step(s). Examples:
 #   current_step: next_step

record-and-playback/presentation/scripts/process/presentation.rb

@@ -225,7 +225,7 @@ unless FileTest.directory?(target_dir)
 
       webcam_framerate = 15 if webcam_framerate.nil?
       processed_audio_file = BigBlueButton::AudioProcessor.get_processed_audio_file(raw_archive_dir, "#{target_dir}/audio")
-      BigBlueButton.process_webcam_videos(target_dir, raw_archive_dir, webcam_width, webcam_height, webcam_framerate, presentation_props['audio_offset'], processed_audio_file, presentation_props['video_formats'])
+      BigBlueButton.process_webcam_videos(target_dir, raw_archive_dir, webcam_width, webcam_height, webcam_framerate, presentation_props['audio_offset'], processed_audio_file, presentation_props['video_formats'], props['show_moderator_viewpoint'])
     end
 
     if !Dir["#{raw_archive_dir}/deskshare/*"].empty? && presentation_props['include_deskshare']

record-and-playback/screenshare/scripts/process/screenshare.rb

@@ -84,7 +84,7 @@ begin
   logger.info "Generating video events list"
 
   # Webcams
-  webcam_edl = BigBlueButton::Events.create_webcam_edl(events, raw_archive_dir)
+  webcam_edl = BigBlueButton::Events.create_webcam_edl(events, raw_archive_dir, props['show_moderator_viewpoint'])
   logger.debug "Webcam EDL:"
   BigBlueButton::EDL::Video.dump(webcam_edl)