use crate::llm::actions::{
protocol_trait::{ActionResult, Protocol, Server},
ActionDefinition,
};
use crate::protocol::{EventType, SpawnContext};
use crate::server::p2p_support::{action, parameter};
use crate::state::AppState;
use anyhow::{ensure, Result};
use serde_json::{json, Value};
use std::{
future::Future,
net::SocketAddr,
pin::Pin,
sync::{Arc, LazyLock},
};
#[derive(Default)]
pub struct GnutellaProtocol;
impl GnutellaProtocol {
pub fn new() -> Self {
Self
}
}
pub fn reply() -> ActionDefinition {
action(
"gnutella_reply",
"Ping/pong discovery, query/query-hit search and push descriptors",
vec![
parameter("ip", "string", "Advertised IPv4 endpoint", false),
parameter("port", "number", "Advertised port", false),
parameter("files", "number", "Shared file count", false),
parameter(
"kilobytes",
"number",
"Total advertised shared content size in unsigned 32-bit kilobytes",
false,
),
parameter("speed", "number", "Declared transfer speed", false),
parameter(
"results",
"array",
"Search hits (index,size,name,urn)",
false,
),
],
json!({"type":"gnutella_reply","ip":"127.0.0.1","port":6346,"results":[{"index":1,"size":5,"name":"hello.txt"}]}),
)
}
impl Protocol for GnutellaProtocol {
fn protocol_name(&self) -> &'static str {
"Gnutella"
}
fn stack_name(&self) -> &'static str {
"ETH>IP>TCP>Gnutella"
}
fn keywords(&self) -> Vec<&'static str> {
vec!["gnutella", "gnutella"]
}
fn description(&self) -> &'static str {
"Selected Gnutella hub and peer operations listening role"
}
fn example_prompt(&self) -> &'static str {
"Listen on Gnutella port 6346; supply protocol decisions with handlers"
}
fn group_name(&self) -> &'static str {
"Peer-to-peer"
}
fn get_startup_parameters(&self) -> Vec<crate::llm::actions::ParameterDefinition> {
crate::server::p2p_support::tls_parameters(true)
}
fn get_startup_examples(&self) -> crate::llm::actions::StartupExamples {
let base = json!({"type":"open_server","base_stack":"gnutella","port":6346,"instruction":"Serve selected Gnutella operations"});
let mut fixed = base.clone();
fixed["event_handlers"] = json!([{"event_pattern":"gnutella_request","handler":{"type":"static","actions":[reply().example]}}]);
let mut script = base.clone();
script["event_handlers"] = json!([{"event_pattern":"gnutella_request","handler":{"type":"script","language":"python","code":"import json,sys\ne=json.load(sys.stdin)['event']\nprint(json.dumps({'actions':[{'type':'gnutella_reply','error':'denied'}]}))"}}]);
crate::llm::actions::StartupExamples::new(base, script, fixed)
}
fn get_async_actions(&self, _: &AppState) -> Vec<ActionDefinition> {
vec![action(
"disconnect",
"Close this peer",
vec![],
json!({"type":"disconnect"}),
)]
}
fn get_sync_actions(&self) -> Vec<ActionDefinition> {
vec![reply()]
}
fn get_event_types(&self) -> Vec<EventType> {
EVENTS.clone()
}
fn metadata(&self) -> crate::protocol::ProtocolMetadataV2 {
crate::protocol::ProtocolMetadataV2::builder().state(crate::protocol::metadata::DevelopmentState::Experimental).implementation("Native bounded Gnutella selected codec; TCP and optional implicit TLS").llm_control("Ping/pong discovery, query/query-hit search and push descriptors").e2e_testing("Independent peer exchanges, malformed input, owner shutdown and standalone feature builds").notes("Selected Gnutella 0.6 TCP peer simulator. No public network crawling, ultrapeer routing, QRP/GGEP, DHT, HTTP file downloads or push connection dialing. Handler-supplied endpoint and search results, TTL/hops limited to 16, 64 KiB descriptor payload, 32 query hits. 256 connections, 30 s first frame, 600 s idle, 10 s handshake/exchange. No persistent protocol data; handlers supply content and decisions.").max_inbound_bytes(super::codec::MAX_COMMAND).well_known_port(6346).build()
}
}
impl Server for GnutellaProtocol {
fn spawn(&self, ctx: SpawnContext) -> Pin<Box<dyn Future<Output = Result<SocketAddr>> + Send>> {
Box::pin(crate::server::p2p_support::spawn(
ctx,
Arc::new(Self),
super::codec::Device::default,
&EVENTS,
))
}
fn execute_action(&self, v: Value) -> Result<ActionResult> {
if v["type"] == "disconnect" {
return Ok(ActionResult::CloseConnection);
}
ensure!(v["type"] == "gnutella_reply", "unknown action");
Ok(ActionResult::Custom {
name: "gnutella_reply".into(),
data: v,
})
}
}
pub static EVENTS: LazyLock<Vec<EventType>> = LazyLock::new(|| {
vec![EventType::new(
"gnutella_request",
"Ping/pong discovery, query/query-hit search and push descriptors",
reply().example,
)
.with_actions(vec![reply()])
.with_parameters(vec![
parameter("operation", "string", "Selected protocol operation", true),
parameter(
"identifier",
"string",
"Requested object, message or file identifier",
false,
),
])]
});