Course Outline
Media Devices Handling
1. Browser Permissions with navigator.permissions
- Hardware access:
- Webcam
- Microphone
- Optional permissions:
- Geolocation
- Notifications
- Clipboard (read/write)
- Querying permissions and checking status
- Limitations and cross-browser compatibility
2. Accessing Media Devices via navigator.mediaDevices
- Device enumeration
- Managing device changes
3. Cross-browser Compatibility
- API utilization:
- navigator.permissions.query()
- navigator.mediaDevices.enumerateDevices()
- getUserMedia()
- Safari fallback strategies
4. Media Device Management
- Device initialization: getUserMedia(constraints)
- Media device constraints
- Controlling media stream start and stop
- Responding to device changes
5. Recording Devices with MediaRecorder
- Starting/stopping streaming and recording
- Downloading .webm files
- Real-time waveform previews
Optional Extensions:
- Saving audio in .wav format using ScriptProcessorNode
- Audio FFT spectrum visualization
- Volume bar display in decibels
- Voice recognition using webkitSpeechRecognition
Peer Connection
1. Signaling Servers
- Bidirectional channel options:
- WebSocket
- Socket.io
- SignalR
- Message structure
- Streamlined WebRTC client
- Complete signaling flow
2. Video Chat via WebRTC
- Architecture: Node.js + ws
- WebRTC client: RTCPeerConnection
- Local end-to-end testing
Optional Features:
- Call termination (closing connections and stopping media)
- Group calling (multi-user rooms)
- Token-based simple authentication
3. Screen Sharing
- Utilization of getDisplayMedia()
- Architecture and configuration options
4. Session Description Protocol (SDP)
- Introduction and content overview
- Reading and interpreting SDP
- Codecs:
- Audio & Video
- Negotiation and control
- Fallback strategies
5. WebRTC Statistics with getStats()
- Categories of statistics
- Interpreting statistical data
- Live bitrate/jitter charts
- Quality adaptation strategies
6. All of the topic are
- Hands-on use-case
Requirements
This training is tailored for frontend and full-stack developers, technical architects, and engineers developing browser-based real-time communication features such as video chat, screen sharing, or audio streaming. Participants are expected to have a solid understanding of JavaScript and core web technologies, while prior experience with Node.js and WebSocket-based communication is considered an asset.
Testimonials (3)
The training helped me expand my knowledge and understanding of Burp Suite. I also realized that what I had learned through self-study was still quite limited. This training was very helpful to me as a QA because Burp Suite is a valuable tool for performing security testing and improving the overall quality of application testing. I will continue exploring this tool and learning more about its features and capabilities.
Rea Mendez - BAKAWAN Data Anallytics Inc.
Course - OWASP Top 10 2025
I really enjoyed learning about AI attacks and the tools out there to begin practicing and actively using for security testing. I took a lot of knowledge away which I didn't have at the beginning and the course met what I hoped it would be. My favorite part shown from the training was Comet Browser and was amazed at what it could do. Definitely something will be looking into more. Overall it was a great course and enjoyed learning all OWASP GenAI Top 10.
Patrick Collins - Optum
Course - OWASP GenAI Security
Hands-on, exercises, in-person helping and questioning.
