nim-chat-poc/library/liblogoschat.h
Prem Chaitanya Prathi c9dfefa498
feat(mix): mixnet sender-anonymity for Logos Chat (static RLN, no LEZ)
Global, restart-based Required/None anonymity mode: route chat messages through the
libp2p mixnet for sender anonymity, on the logos-delivery (efafdfdc2) nwaku stack.
Static RLN spam protection; no on-chain LEZ gifter / dynamic membership.

Delivery (src/chat/delivery/waku_client.nim):
- WakuConfig.mixEnabled/mixNodes/minMixPoolSize; parseMixNodes, waitForMixPool,
  getMixPoolSize, mixReady.
- Required mode: sendBytes -> lightpushPublish(mixify=true) over the mix pool,
  fail-fast below minMixPoolSize (no relay fallback). None mode: relay publish.
  Errors propagate up to chat_send_message.
- Receive via WakuFilter (subscribe to static peers; no relay mounted), refreshed
  by a 60s keep-alive.
- Static RLN: pre-populated rln_tree.db + per-peer keystore; nodekey config to adopt
  a provisioned identity. No per-send root-convergence wait (static membership).

API / build:
- chat_get_mix_status FFI -> {mixEnabled,mixReady,mixPoolSize,minPoolSize}.
- Reproducible nix build: librln consumed as a cdylib (avoids the two-Rust-staticlib
  symbol collision); -d:libp2p_mix_experimental_exit_is_dest.
- vendor/nwaku -> efafdfdc2; vendor/nim-protobuf-serialization -> 38d24eb (0.4.0).
2026-06-25 21:45:41 +05:30

117 lines
4.8 KiB
C

// Generated manually
#ifndef __liblogoschat__
#define __liblogoschat__
#include <stddef.h>
#include <stdint.h>
// The possible returned values for the functions that return int
#define RET_OK 0
#define RET_ERR 1
#define RET_MISSING_CALLBACK 2
#ifdef __cplusplus
extern "C" {
#endif
typedef void (*FFICallBack)(int callerRet, const char *msg, size_t len,
void *userData);
//////////////////////////////////////////////////////////////////////////////
// Client Lifecycle
//////////////////////////////////////////////////////////////////////////////
// Creates a new instance of the chat client.
// Sets up the chat client from the given configuration.
// Returns a pointer to the Context needed by the rest of the API functions.
// configJson: JSON object with fields:
// - "name": string - identity name (default: "anonymous")
// - "port": int - Waku port (optional)
// - "clusterId": int - Waku cluster ID (optional)
// - "shardId": int - Waku shard ID (optional)
// - "staticPeers": array of strings - static peer multiaddrs (optional)
// - "mixEnabled": bool - enable mix protocol for sender anonymity (default: false)
// - "mixNodes": array of strings - mix bootstrap nodes as "multiaddr:mixPubKeyHex"
// - "destPeerAddr": string - lightpush destination peer "multiaddr/p2p/peerId"
// - "minMixPoolSize": int - minimum mix pool size before sending via mix (default: 4)
void *chat_new(const char *configJson, FFICallBack callback, void *userData);
// Start the chat client and begin listening for messages
int chat_start(void *ctx, FFICallBack callback, void *userData);
// Stop the chat client
int chat_stop(void *ctx, FFICallBack callback, void *userData);
// Destroys an instance of a chat client created with chat_new
int chat_destroy(void *ctx, FFICallBack callback, void *userData);
// Sets a callback that will be invoked whenever an event occurs.
// Events are JSON objects with "eventType" field:
// - "new_message":
// {"eventType":"new_message","conversationId":"...","messageId":"...","content":"hex...","timestamp":...}
// - "new_conversation":
// {"eventType":"new_conversation","conversationId":"...","conversationType":"private"}
// - "delivery_ack":
// {"eventType":"delivery_ack","conversationId":"...","messageId":"..."}
void set_event_callback(void *ctx, FFICallBack callback, void *userData);
//////////////////////////////////////////////////////////////////////////////
// Client Info
//////////////////////////////////////////////////////////////////////////////
// Get the client's identifier
int chat_get_id(void *ctx, FFICallBack callback, void *userData);
//////////////////////////////////////////////////////////////////////////////
// Conversation Operations
//////////////////////////////////////////////////////////////////////////////
// List all conversations as JSON array
// Returns: JSON array of objects with "id" field
int chat_list_conversations(void *ctx, FFICallBack callback, void *userData);
// Get a specific conversation by ID
// Returns: JSON object with "id" field
int chat_get_conversation(void *ctx, FFICallBack callback, void *userData,
const char *convoId);
// Create a new private conversation with the given IntroBundle
// introBundleStr: Intro bundle ASCII string as returned by chat_create_intro_bundle
// contentHex: Initial message content as hex-encoded string
int chat_new_private_conversation(void *ctx, FFICallBack callback,
void *userData, const char *introBundleStr,
const char *contentHex);
// Send a message to a conversation
// convoId: Conversation ID string
// contentHex: Message content as hex-encoded string
// Returns: Message ID on success
int chat_send_message(void *ctx, FFICallBack callback, void *userData,
const char *convoId, const char *contentHex);
//////////////////////////////////////////////////////////////////////////////
// Identity Operations
//////////////////////////////////////////////////////////////////////////////
// Get the client identity
// Returns JSON: {"name": "..."}
int chat_get_identity(void *ctx, FFICallBack callback, void *userData);
// Create an IntroBundle for initiating private conversations
// Returns the intro bundle as an ASCII string (format: logos_chatintro_<version>_<base64url payload>)
int chat_create_intro_bundle(void *ctx, FFICallBack callback, void *userData);
//////////////////////////////////////////////////////////////////////////////
// Mix Protocol Status
//////////////////////////////////////////////////////////////////////////////
// Get mix protocol status
// Returns JSON: {"mixEnabled":bool,"mixReady":bool,"mixPoolSize":int,"minPoolSize":int}
int chat_get_mix_status(void *ctx, FFICallBack callback, void *userData);
#ifdef __cplusplus
}
#endif
#endif /* __liblogoschat__ */