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neolith

An attempt at an easy-to-understand Hotline protocol implementation along with a reference client and server.

Status

What is currently implemented?

• Protocol frame serialization/deserialization
  • Client/Server Handshake
  • Transactions
• Many of the higher level protocol concepts such as:
  • Login
  • Set user name info
  • Send/receive chat
  • Read/post non-threaded news
  • many more...
• A very simple, insecure, and incoherent demo server.
  • Unrestricted logins
  • Read-only file browsing backed by a UNIX filesystem subtree
  • Single-file downloads without resume support
  • Chat messaging
  • Broadcast messaging
  • Private chat rooms
  • Instant messaging

What is in progress?

• Server-side
  • File/folder transfer

What is not implemented?

• Server-side
  • Permissions
  • User administration
  • File manipulation (move/delete/set info)
  • Well-designed state machines for connections
  • A good dispatch mechanism for transaction receipt.
  • A good model for request-reply sequences.
  • More ergonomic declaration and (de-)serialization of each protocol struct.
  • Communication with Trackers
• Client
  • Anything