use crate::llm::actions::{
client_trait::{Client, ClientActionResult},
protocol_trait::Protocol,
ActionDefinition, Parameter, ParameterDefinition,
};
use crate::protocol::log_template::LogTemplate;
use crate::protocol::EventType;
use crate::state::app_state::AppState;
use anyhow::{Context, Result};
use serde_json::json;
use std::sync::LazyLock;
pub static HTTP3_CLIENT_CONNECTED_EVENT: LazyLock<EventType> = LazyLock::new(|| {
EventType::new(
"http3_connected",
"HTTP/3 client connected via QUIC and ready to send requests",
json!({
"type": "send_http3_request",
"method": "GET",
"path": "/api/status",
"priority": 5
}),
)
.with_parameters(vec![
Parameter {
name: "base_url".to_string(),
type_hint: "string".to_string(),
description: "Base URL for HTTP/3 requests".to_string(),
required: true,
},
Parameter {
name: "remote_addr".to_string(),
type_hint: "string".to_string(),
description: "Authenticated target of this reusable QUIC session".to_string(),
required: true,
},
])
.with_actions(Http3ClientProtocol::new().get_sync_actions())
});
pub static HTTP3_CLIENT_RESPONSE_RECEIVED_EVENT: LazyLock<EventType> = LazyLock::new(|| {
EventType::new(
"http3_response_received",
"HTTP/3 response received from server",
json!({
"type": "send_http3_request",
"method": "POST",
"path": "/api/data",
"body": "{\"key\": \"value\"}",
"priority": 3
}),
)
.with_parameters(vec![
Parameter {
name: "status_code".to_string(),
type_hint: "number".to_string(),
description: "HTTP status code".to_string(),
required: true,
},
Parameter {
name: "headers".to_string(),
type_hint: "object".to_string(),
description: "Response headers".to_string(),
required: true,
},
Parameter {
name: "body".to_string(),
type_hint: "string".to_string(),
description: "Complete UTF-8 response body, at most 8 MiB".to_string(),
required: true,
},
Parameter {
name: "trailers".into(),
type_hint: "object".into(),
description: "Trailing response headers".into(),
required: true,
},
Parameter {
name: "stream_id".to_string(),
type_hint: "number".to_string(),
description: "Index of this request stream on the reusable QUIC connection."
.to_string(),
required: true,
},
])
.with_actions(Http3ClientProtocol::new().get_sync_actions())
});
pub static HTTP3_CLIENT_ERROR_EVENT: LazyLock<EventType> = LazyLock::new(|| {
EventType::new(
"http3_request_failed",
"HTTP/3 exchange failed",
json!({"type":"wait_for_more"}),
)
.with_parameters(vec![Parameter {
name: "error".into(),
type_hint: "string".into(),
description: "Local failure description".into(),
required: true,
}])
.with_actions(Http3ClientProtocol::new().get_sync_actions())
});
#[derive(Default)]
pub struct Http3ClientProtocol;
impl Http3ClientProtocol {
pub fn new() -> Self {
Self
}
}
impl Protocol for Http3ClientProtocol {
fn get_startup_parameters(&self) -> Vec<ParameterDefinition> {
let mut parameters = crate::utils::quic::client_parameters();
parameters.push(ParameterDefinition {
name: "default_headers".to_string(),
description: "Default headers to include in all requests".to_string(),
type_hint: "object".to_string(),
required: false,
example: json!({
"User-Agent": "NetGet-HTTP3/1.0",
"Accept": "application/json"
}),
default: None,
});
parameters
}
fn get_async_actions(&self, _state: &AppState) -> Vec<ActionDefinition> {
self.get_sync_actions()
}
fn get_sync_actions(&self) -> Vec<ActionDefinition> {
vec![
ActionDefinition {
name: "send_http3_request".to_string(),
description: "Send another HTTP/3 request in response to received data".to_string(),
parameters: vec![
Parameter {
name: "method".to_string(),
type_hint: "string".to_string(),
description: "HTTP request method, such as GET or POST".to_string(),
required: true,
},
Parameter {
name: "path".to_string(),
type_hint: "string".to_string(),
description: "Origin-form path and optional query string".to_string(),
required: true,
},
Parameter {
name: "headers".to_string(),
type_hint: "object".to_string(),
description: "Request headers".to_string(),
required: false,
},
Parameter {
name: "trailers".into(),
type_hint: "object".into(),
description: "Trailing request headers".into(),
required: false,
},
Parameter {
name: "body".to_string(),
type_hint: "string".to_string(),
description: "UTF-8 request body, at most 8 MiB".to_string(),
required: false,
},
Parameter {
name: "priority".to_string(),
type_hint: "number".to_string(),
description: "RFC 9218 urgency, 0-7, sent as the `priority: u=N` request \
header. **Lower is more urgent** (0 = most urgent, 7 = least); \
the RFC default is 3, and omitting this sends no header at all, \
which is not the same as sending u=3. It is a hint the server \
uses when scheduling responses; a server may ignore it."
.to_string(),
required: false,
},
],
example: json!({
"type": "send_http3_request",
"method": "POST",
"path": "/api/data",
"body": "{\"key\": \"value\"}",
"priority": 3
}),
log_template: Some(
LogTemplate::new().with_info("-> HTTP3 {method} {path} body_bytes={body_len}"),
),
},
ActionDefinition {
name: "disconnect".into(),
description: "Close the QUIC session and cancel active requests".into(),
parameters: vec![],
example: json!({"type":"disconnect"}),
log_template: Some(LogTemplate::new().with_info("-> HTTP3 disconnect")),
},
ActionDefinition {
name: "wait_for_more".to_string(),
description: "Take no action and wait for the next response. Use when nothing \
should be sent yet."
.to_string(),
parameters: vec![],
example: json!({ "type": "wait_for_more" }),
log_template: Some(
LogTemplate::new().with_info("HTTP3 waiting for another response"),
),
},
]
}
fn protocol_name(&self) -> &'static str {
"HTTP3"
}
fn get_event_types(&self) -> Vec<EventType> {
vec![
HTTP3_CLIENT_CONNECTED_EVENT.clone(),
HTTP3_CLIENT_RESPONSE_RECEIVED_EVENT.clone(),
HTTP3_CLIENT_ERROR_EVENT.clone(),
]
}
fn stack_name(&self) -> &'static str {
"ETH>IP>UDP>QUIC>HTTP3"
}
fn keywords(&self) -> Vec<&'static str> {
vec!["http3", "http/3", "quic", "h3", "connect to http3"]
}
fn metadata(&self) -> crate::protocol::metadata::ProtocolMetadataV2 {
use crate::protocol::metadata::{DevelopmentState, ProtocolMetadataV2};
ProtocolMetadataV2::builder()
.state(DevelopmentState::Experimental)
.implementation("quinn 0.11 + rustls 0.23 + h3 0.0.8, authenticated reusable RFC 9114 session with an owned control/QPACK driver. h3-quinn 0.0.10 has a local pending-read cancellation patch.")
.llm_control("Method, origin-form path, headers, UTF-8 body, request trailers and RFC 9218 urgency 0..7. Injected and handler requests multiplex concurrently; up to 32 active exchanges and handlers, with four follow-up levels.")
.e2e_testing("Independent pinned aioquic 1.3.0 server tests GET/POST/header/priority/trailers, multiplexing, response bounds, trust/name failures, timeout and disconnect/removal. NetGet pair and real server tests cover both roles. No tests are ignored or skip missing peers.")
.notes("32 KiB field sections, 8 MiB UTF-8 bodies, bounded handshake/exchange/idle deadlines. System roots plus explicit ca_cert_path; optional server_name. No 0-RTT, server push, DATAGRAM, WebTransport or migration. Experimental: no second independent implementation, pcap oracle or fuzz target.")
.build()
}
fn description(&self) -> &'static str {
"HTTP/3 client for making web requests over QUIC"
}
fn example_prompt(&self) -> &'static str {
"Connect to localhost:4433 using a trusted certificate and fetch /api/status over HTTP/3"
}
fn group_name(&self) -> &'static str {
"Core"
}
fn get_startup_examples(&self) -> crate::llm::actions::StartupExamples {
use crate::llm::actions::StartupExamples;
use serde_json::json;
StartupExamples::new(
json!({
"type": "open_client",
"remote_addr": "localhost:4433",
"startup_params": {"ca_cert_path":"cert.pem","server_name":"localhost"},
"base_stack": "http3",
"instruction": "Fetch /api/status and display QUIC connection info"
}),
json!({
"type": "open_client",
"remote_addr": "localhost:4433",
"startup_params": {"ca_cert_path":"cert.pem","server_name":"localhost"},
"base_stack": "http3",
"event_handlers": [{
"event_pattern": "http3_response_received",
"handler": {
"type": "script",
"language": "python",
"code": "<http3_handler>"
}
}]
}),
json!({
"type": "open_client",
"remote_addr": "localhost:4433",
"startup_params": {"ca_cert_path":"cert.pem","server_name":"localhost"},
"base_stack": "http3",
"event_handlers": [{
"event_pattern": "http3_connected",
"handler": {
"type": "static",
"actions": [{
"type": "send_http3_request",
"method": "GET",
"path": "/api/status",
"priority": 5
}]
}
}]
}),
)
}
}
impl Client for Http3ClientProtocol {
fn connect(
&self,
ctx: crate::protocol::ConnectContext,
) -> std::pin::Pin<
Box<dyn std::future::Future<Output = anyhow::Result<std::net::SocketAddr>> + Send>,
> {
Box::pin(async move {
use crate::client::http3::Http3Client;
Http3Client::connect(ctx).await
})
}
fn execute_action(&self, action: serde_json::Value) -> Result<ClientActionResult> {
let action_type = action
.get("type")
.and_then(|v| v.as_str())
.context("Missing 'type' field in action")?;
match action_type {
"send_http3_request" => {
let method = action
.get("method")
.and_then(|v| v.as_str())
.context("Missing 'method' field")?
.to_string();
let path = action
.get("path")
.and_then(|v| v.as_str())
.context("Missing 'path' field")?
.to_string();
let headers = match action.get("headers") {
None | Some(serde_json::Value::Null) => None,
Some(value) => Some(
value
.as_object()
.context("headers must be an object")?
.clone(),
),
};
let body = match action.get("body") {
None | Some(serde_json::Value::Null) => None,
Some(value) => {
Some(value.as_str().context("body must be a string")?.to_owned())
}
};
let priority = action
.get("priority")
.filter(|value| !value.is_null())
.map(|_| crate::client::wire_values::number::<u8>(&action, "priority", 0))
.transpose()?;
anyhow::ensure!(priority.is_none_or(|p| p <= 7), "priority must be 0..7");
Ok(ClientActionResult::Custom {
name: "http3_request".to_string(),
data: json!({
"method": method,
"path": path,
"headers": headers,
"body": body,
"priority": priority,
"trailers": action.get("trailers"),
}),
})
}
"disconnect" => Ok(ClientActionResult::Disconnect),
"wait_for_more" => Ok(ClientActionResult::WaitForMore),
_ => Err(anyhow::anyhow!(
"Unknown HTTP/3 client action: {}",
action_type
)),
}
}
}