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ambee/giterated

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Huge refactor to prep for moving the daemon over to the plugin architecture

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Amber - ⁨2⁩ years ago

parent: tbd commit: ⁨5df753c⁩

⁨giterated-plugins/giterated-protocol/src/handlers.rs⁩ - ⁨7620⁩ bytes
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1 use std::{fmt::Display, net::SocketAddr, str::FromStr, sync::Arc};
2
3 use anyhow::Error;
4 use futures_util::{SinkExt, StreamExt};
5 use giterated_models::{
6 error::{NetworkOperationError, OperationError},
7 instance::Instance,
8 object::GiteratedObject,
9 operation::GiteratedOperation,
10 };
11 use giterated_plugin::{
12 new_stack::{runtime_handler::RuntimeHandle, Runtime},
13 AnyFailure, AnyObject, AnyOperation, AnySuccess,
14 };
15 use serde::{Deserialize, Serialize};
16 use tokio::net::TcpStream;
17 use tokio_tungstenite::{connect_async, tungstenite::Message, MaybeTlsStream, WebSocketStream};
18
19 use crate::{Authenticated, GiteratedMessage, ProtocolState, RemoteError};
20
21 pub async fn handle_network_operation<OS: Send + Sync + Clone + 'static>(
22 state: ProtocolState,
23 object: NetworkedObject,
24 operation: NetworkedOperation,
25 runtime: RuntimeHandle,
26 ) -> Result<Vec<u8>, OperationError<Vec<u8>>> {
27 trace!("Handle network operation {}", operation.name);
28
29 runtime
30 .handle_serialized(&object.0, &operation.name, &operation.payload)
31 .await
32 }
33
34 #[derive(Clone, Debug, Serialize, Deserialize)]
35 pub struct NetworkedObject(pub String);
36
37 impl FromStr for NetworkedObject {
38 type Err = ();
39
40 fn from_str(s: &str) -> Result<Self, Self::Err> {
41 Ok(NetworkedObject(s.to_string()))
42 }
43 }
44
45 impl Display for NetworkedObject {
46 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
47 f.write_str(&self.0)
48 }
49 }
50
51 impl GiteratedObject for NetworkedObject {
52 fn object_name() -> &'static str {
53 "networked_object"
54 }
55
56 fn from_object_str(_object_str: &str) -> Result<Self, Error> {
57 todo!()
58 }
59
60 fn home_uri(&self) -> String {
61 todo!()
62 }
63 }
64
65 #[derive(Clone, Debug, Serialize, Deserialize)]
66 pub struct NetworkedOperation {
67 pub name: String,
68 pub payload: Vec<u8>,
69 }
70
71 impl NetworkedOperation {
72 pub fn new(name: String, payload: Vec<u8>) -> Self {
73 Self { name, payload }
74 }
75 }
76
77 impl GiteratedOperation<NetworkedObject> for NetworkedOperation {
78 type Success = Vec<u8>;
79
80 type Failure = Vec<u8>;
81
82 fn operation_name() -> &'static str {
83 "networked_operation"
84 }
85 }
86
87 /// Handler which will attempt to resolve any operation that doesn't resolve locally
88 /// against a remote instance.
89 pub async fn try_handle_with_remote<OS>(
90 state: ProtocolState,
91 object: AnyObject,
92 operation: AnyOperation,
93 ) -> Result<AnySuccess, OperationError<AnyFailure>> {
94 // if object.is::<NetworkedObject>() {
95 // return Err(OperationError::Unhandled);
96 // }
97 // trace!(
98 // "Try handling object operation {}::{} with remote",
99 // object.kind(),
100 // operation.kind().operation_name
101 // );
102 // TODO:
103 // Ideally we support pass-through on object types that aren't used locally.
104 // For now, we aren't worrying about that.
105 let object_meta = object.vtable().clone();
106
107 let operation_meta = operation.vtable().clone();
108
109 // trace!(
110 // "Serializing with {}::{}",
111 // operation.kind().object_name,
112 // operation.kind().operation_name
113 // );
114
115 let object_home_uri = unsafe { (object_meta.home_uri)(&object) };
116
117 if let Some(home_uri) = state.home_uri {
118 if &home_uri == object_home_uri.as_ref() {
119 // This isn't a remote request, requests aren't supposed to hit this layer
120 // if they're not remote.
121 // warn!("Try handling object operation {}::{}, resolved object home uri as local home uri. This is a bug.", object.kind(),
122 // operation.kind().operation_name);
123
124 return Err(OperationError::Unhandled);
125 }
126 }
127
128 // trace!(
129 // "Handling object operation {}::{} sending payload",
130 // object.kind(),
131 // operation.kind().operation_name
132 // );
133
134 let object = NetworkedObject(unsafe { (object_meta.to_str)(object).as_ref().to_string() });
135
136 let payload = unsafe { (operation_meta.serialize)(&operation) }.unwrap();
137 let payload = Vec::from(payload.as_ref());
138
139 let operation = NetworkedOperation::new(operation_meta.kind().to_string(), payload);
140
141 // let authenticated = Authenticated::new(object, operation);
142
143 let message = GiteratedMessage {
144 object,
145 operation: NetworkedOperation::operation_name().to_string(),
146 payload: operation,
147 };
148
149 let authenticated = Authenticated::new(message);
150
151 let mut socket: WebSocketStream<MaybeTlsStream<TcpStream>> = connect_to(
152 &Instance::from_str(&object_home_uri).unwrap(),
153 &Some(("127.0.0.1:1111").parse().unwrap()),
154 )
155 .await
156 .unwrap();
157
158 // TODO AUTH
159
160 let result: Result<Vec<u8>, OperationError<Vec<u8>>> =
161 send_expect(&mut socket, authenticated).await;
162
163 match result {
164 Ok(success) => {
165 let success = unsafe { (operation_meta.deserialize_success)(&success) }.unwrap();
166
167 Ok(success)
168 }
169 Err(err) => Err(match err {
170 OperationError::Operation(failure) => {
171 let failure = unsafe { (operation_meta.deserialize_failure)(&failure) }.unwrap();
172
173 OperationError::Operation(failure)
174 }
175 OperationError::Internal(internal) => OperationError::Internal(internal),
176 OperationError::Unhandled => OperationError::Unhandled,
177 }),
178 }
179 }
180
181 type Socket = WebSocketStream<MaybeTlsStream<TcpStream>>;
182
183 async fn connect_to(
184 instance: &Instance,
185
186 socket_addr: &Option<SocketAddr>,
187 ) -> Result<Socket, Error> {
188 if let Some(addr) = socket_addr {
189 info!(
190 "Connecting to {}",
191 format!("ws://{}/.giterated/daemon/", addr)
192 );
193
194 let (websocket, _response) =
195 connect_async(&format!("ws://{}/.giterated/daemon/", addr)).await?;
196
197 info!("Connection established with {}", addr);
198
199 Ok(websocket)
200 } else {
201 info!(
202 "Connecting to {}",
203 format!("wss://{}/.giterated/daemon/", instance.0)
204 );
205
206 let (websocket, _response) =
207 connect_async(&format!("wss://{}/.giterated/daemon/", instance.0)).await?;
208
209 info!("Connection established with {}", instance.0);
210
211 Ok(websocket)
212 }
213 }
214
215 async fn send_expect<O: GiteratedObject, D: GiteratedOperation<O>>(
216 socket: &mut Socket,
217 message: Authenticated<O, D>,
218 ) -> Result<Vec<u8>, OperationError<Vec<u8>>> {
219 let payload = bincode::serialize(&message.into_payload()).unwrap();
220
221 socket.send(Message::Binary(payload)).await.unwrap();
222
223 while let Some(message) = socket.next().await {
224 let payload = match message.unwrap() {
225 Message::Binary(payload) => payload,
226
227 _ => {
228 continue;
229 }
230 };
231
232 let raw_result =
233 bincode::deserialize::<Result<Vec<u8>, NetworkOperationError<Vec<u8>>>>(&payload)
234 .map_err(|e| OperationError::Internal(Error::from(e)))?;
235
236 trace!(
237 "Received response for networked operation {}::{}.",
238 O::object_name(),
239 D::operation_name()
240 );
241
242 return match raw_result {
243 Ok(success) => Ok(success),
244 Err(err) => Err(match err {
245 NetworkOperationError::Operation(operation_error) => {
246 OperationError::Operation(operation_error)
247 }
248 NetworkOperationError::Internal => OperationError::Internal(RemoteError.into()),
249 NetworkOperationError::Unhandled => OperationError::Unhandled,
250 }),
251 };
252 }
253
254 panic!()
255 }
256