10a6a840b5
There's a race condition that may cause a client crash whenever a video-provider's unmount procedure is run, but its signalling websocket is undefined. The WS's callback handlers are re-assigned without checking for the socket's availability, causing an unhandled TypeError. The WS may be undefined in a couple of scenarios, e.g.: unmouting before the socket was successfully set up, unmounting while a reconnect is in place etc. Check whether the socket exists before accessing it in video-provider's componentWillUnmount routine. |
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|---|---|---|
| .github | ||
| akka-bbb-apps | ||
| akka-bbb-fsesl | ||
| bbb-common-message | ||
| bbb-common-web | ||
| bbb-export-annotations | ||
| bbb-fsesl-client | ||
| bbb-learning-dashboard | ||
| bbb-libreoffice | ||
| bbb-recording-imex | ||
| bbb-voice-conference/config/freeswitch | ||
| bigbluebutton-config | ||
| bigbluebutton-html5 | ||
| bigbluebutton-tests | ||
| bigbluebutton-web | ||
| build | ||
| docs | ||
| labs/stress-testing | ||
| record-and-playback | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| .nvmrc | ||
| bbb-etherpad.placeholder.sh | ||
| bbb-lti.placeholder.sh | ||
| bbb-pads.placeholder.sh | ||
| bbb-playback.placeholder.sh | ||
| bbb-presentation-video.placeholder.sh | ||
| bbb-transcription-controller.placeholder.sh | ||
| bbb-webhooks.placeholder.sh | ||
| bbb-webrtc-recorder.placeholder.sh | ||
| bbb-webrtc-sfu.placeholder.sh | ||
| freeswitch.placeholder.sh | ||
| LICENSE | ||
| README.md | ||
| SECURITY.md | ||
| transifex.yml | ||
BigBlueButton
BigBlueButton is an open source web conferencing system.
BigBlueButton supports real-time sharing of audio, video, slides (with whiteboard controls), chat, and the screen. Instructors can engage remote students with polling, emojis, multi-user whiteboard, and breakout rooms.
Presenters can record and playback content for later sharing with others.
We designed BigBlueButton for online learning, (though it can be used for many other applications as well). The educational use cases for BigBlueButton are
- Online tutoring (one-to-one)
- Flipped classrooms (recording content ahead of your session)
- Group collaboration (many-to-many)
- Online classes (one-to-many)
You can install on a Ubuntu 20.04 64-bit server. We provide bbb-install.sh to let you have a server up and running within 30 minutes (or your money back 😉).
For full technical documentation BigBlueButton -- including architecture, features, API, and GreenLight (the default front-end) -- see https://docs.bigbluebutton.org/.
BigBlueButton and the BigBlueButton Logo are trademarks of BigBlueButton Inc .