Raw Form Post 2pX

Raw Post Callback 2pX

Overview

This is a NetBurner embedded web server application that demonstrates how to handle raw HTTP POST requests. The application creates a web server that can receive and process form data submitted through HTTP POST requests.

Application Components

Main Application (main.cpp)

• Application Name: "Raw Post Callback 2pX"
• Purpose: Initializes the network stack and starts an HTTP web server
• Key Features:
  • Network stack initialization
  • System diagnostics enabled
  • HTTP server startup on default port 80
  • DHCP network configuration with 5-second timeout
  • Continuous operation loop

Form Handler (formcode.cpp)

• Purpose: Handles HTTP POST requests from web forms
• Key Features:
  • Raw POST data processing with boundary marker support
  • Real-time data streaming and display
  • HTML response generation
  • Buffer management for large POST data
  • Multipart form data handling capability

Web Interface (index.html)

• Purpose: Provides a simple web form for user input
• Features:
  • NetBurner logo display
  • Single text input field
  • Form submission to post.html endpoint
  • Clean HTML table-based layout

How It Works

1. Initialization: The application starts by initializing the network stack and enabling system diagnostics
2. Web Server: HTTP server starts on port 80
3. Network Setup: Waits for DHCP to assign an IP address
4. Form Display: Users can access the web interface to see the input form
5. Data Submission: When users submit the form, data is sent via POST to post.html
6. Processing: The RawPostCallBack function processes the POST data
7. Response: The server responds with an HTML page showing the submitted data

Technical Details

POST Data Processing

• Uses ReadSimpleBody() to read POST data in chunks
• Supports multipart form data with boundary markers
• Handles buffer overflow situations gracefully
• Displays received data in real-time during processing

Buffer Management

• File buffer size: 10,000 bytes
• Streaming data processing to handle large submissions
• Proper memory management for continuous operation

Network Configuration

• Default HTTP port: 80
• DHCP network configuration
• 5-second timeout for network activation
• Continuous monitoring loop with 1-second intervals

Usage

1. Flash the application to a NetBurner device
2. Connect the device to a network with DHCP
3. Navigate to the device's IP address in a web browser
4. Enter text in the form field and click "Submit"
5. View the processed POST data in the response page

Development Environment

• Built for NetBurner 2pX platform
• Uses NetBurner NNDK (NetBurner Network Development Kit)
• Requires NetBurner development tools and libraries

Files

• main.cpp - Main application entry point and initialization
• formcode.cpp - HTTP POST request handler and form processing
• index.html - Web interface with input form

Notes

• System diagnostics are enabled for debugging (should be disabled in production)
• The application runs continuously in a loop
• Shows practical implementation of embedded web server POST handling