Module http

HTTP download state machine.

Non-blocking HTTP GET with streaming support for ISO downloads.

States

Init → Resolving → Connecting → SendingRequest → ReceivingHeaders → ReceivingBody → Done
  ↓         ↓           ↓              ↓                ↓                 ↓
Failed   Failed      Failed         Failed           Failed           Failed

Architecture

This state machine composes DNS and TCP state machines:

• DnsResolveState for hostname resolution
• TcpConnState for connection establishment

The HTTP layer handles request/response framing on top of TCP.

Streaming Mode

For large downloads (ISOs), data is passed to a callback function as it arrives, rather than buffering the entire response.

Reference

NETWORK_IMPL_GUIDE.md §5.5

Structs

• HeaderAccumulator
  Internal state for accumulating headers.
• HttpProgress
  Download progress information.
• HttpResponseInfo
  Information extracted from HTTP response headers.

Enums

• HttpDownloadState
  HTTP download state machine.
• HttpError
  HTTP-specific errors.