use futures::{channel::mpsc, SinkExt as _};use gpui::{Task, View, WindowContext};use http_client::{AsyncBody, HttpClient, Request};use jupyter_protocol::{ExecutionState, JupyterKernelspec, JupyterMessage, KernelInfoReply}; use futures::StreamExt;use smol::io::AsyncReadExt as _; use crate::Session; use super::RunningKernel;use anyhow::Result;use jupyter_websocket_client::{ JupyterWebSocketReader, JupyterWebSocketWriter, KernelLaunchRequest, KernelSpecsResponse, RemoteServer,};use std::{fmt::Debug, sync::Arc}; #[derive(Debug, Clone)]pub struct RemoteKernelSpecification { pub name: String, pub url: String, pub token: String, pub kernelspec: JupyterKernelspec,} pub async fn launch_remote_kernel( remote_server: &RemoteServer, http_client: Arc<dyn HttpClient>, kernel_name: &str, _path: &str,) -> Result<String> { // let kernel_launch_request = KernelLaunchRequest { name: kernel_name.to_string(), // Note: since the path we have locally may not be the same as the one on the remote server, // we don't send it. We'll have to evaluate this decisiion along the way. path: None, }; let kernel_launch_request = serde_json::to_string(&kernel_launch_request)?; let request = Request::builder() .method("POST") .uri(&remote_server.api_url("/kernels")) .header("Authorization", format!("token {}", remote_server.token)) .body(AsyncBody::from(kernel_launch_request))?; let response = http_client.send(request).await?; if !response.status().is_success() { let mut body = String::new(); response.into_body().read_to_string(&mut body).await?; return Err(anyhow::anyhow!("Failed to launch kernel: {}", body)); } let mut body = String::new(); response.into_body().read_to_string(&mut body).await?; let response: jupyter_websocket_client::Kernel = serde_json::from_str(&body)?; Ok(response.id)} pub async fn list_remote_kernelspecs( remote_server: RemoteServer, http_client: Arc<dyn HttpClient>,) -> Result<Vec<RemoteKernelSpecification>> { let url = remote_server.api_url("/kernelspecs"); let request = Request::builder() .method("GET") .uri(&url) .header("Authorization", format!("token {}", remote_server.token)) .body(AsyncBody::default())?; let response = http_client.send(request).await?; if response.status().is_success() { let mut body = response.into_body(); let mut body_bytes = Vec::new(); body.read_to_end(&mut body_bytes).await?; let kernel_specs: KernelSpecsResponse = serde_json::from_slice(&body_bytes)?; let remote_kernelspecs = kernel_specs .kernelspecs .into_iter() .map(|(name, spec)| RemoteKernelSpecification { name: name.clone(), url: remote_server.base_url.clone(), token: remote_server.token.clone(), kernelspec: spec.spec, }) .collect::<Vec<RemoteKernelSpecification>>(); if remote_kernelspecs.is_empty() { Err(anyhow::anyhow!("No kernel specs found")) } else { Ok(remote_kernelspecs.clone()) } } else { Err(anyhow::anyhow!( "Failed to fetch kernel specs: {}", response.status() )) }} impl PartialEq for RemoteKernelSpecification { fn eq(&self, other: &Self) -> bool { self.name == other.name && self.url == other.url }} impl Eq for RemoteKernelSpecification {} pub struct RemoteRunningKernel { remote_server: RemoteServer, _receiving_task: Task<Result<()>>, _routing_task: Task<Result<()>>, http_client: Arc<dyn HttpClient>, pub working_directory: std::path::PathBuf, pub request_tx: mpsc::Sender<JupyterMessage>, pub execution_state: ExecutionState, pub kernel_info: Option<KernelInfoReply>, pub kernel_id: String,} impl RemoteRunningKernel { pub fn new( kernelspec: RemoteKernelSpecification, working_directory: std::path::PathBuf, session: View<Session>, cx: &mut WindowContext, ) -> Task<Result<Box<dyn RunningKernel>>> { let remote_server = RemoteServer { base_url: kernelspec.url, token: kernelspec.token, }; let http_client = cx.http_client(); cx.spawn(|cx| async move { let kernel_id = launch_remote_kernel( &remote_server, http_client.clone(), &kernelspec.name, working_directory.to_str().unwrap_or_default(), ) .await?; let (kernel_socket, _response) = remote_server.connect_to_kernel(&kernel_id).await?; let (mut w, mut r): (JupyterWebSocketWriter, JupyterWebSocketReader) = kernel_socket.split(); let (request_tx, mut request_rx) = futures::channel::mpsc::channel::<JupyterMessage>(100); let routing_task = cx.background_executor().spawn({ async move { while let Some(message) = request_rx.next().await { w.send(message).await.ok(); } Ok(()) } }); let receiving_task = cx.spawn({ let session = session.clone(); |mut cx| async move { while let Some(message) = r.next().await { match message { Ok(message) => { session .update(&mut cx, |session, cx| { session.route(&message, cx); }) .ok(); } Err(e) => { log::error!("Error receiving message: {:?}", e); } } } Ok(()) } }); anyhow::Ok(Box::new(Self { _routing_task: routing_task, _receiving_task: receiving_task, remote_server, working_directory, request_tx, // todo(kyle): pull this from the kernel API to start with execution_state: ExecutionState::Idle, kernel_info: None, kernel_id, http_client: http_client.clone(), }) as Box<dyn RunningKernel>) }) }} impl Debug for RemoteRunningKernel { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { f.debug_struct("RemoteRunningKernel") // custom debug that keeps tokens out of logs .field("remote_server url", &self.remote_server.base_url) .field("working_directory", &self.working_directory) .field("request_tx", &self.request_tx) .field("execution_state", &self.execution_state) .field("kernel_info", &self.kernel_info) .finish() }} impl RunningKernel for RemoteRunningKernel { fn request_tx(&self) -> futures::channel::mpsc::Sender<runtimelib::JupyterMessage> { self.request_tx.clone() } fn working_directory(&self) -> &std::path::PathBuf { &self.working_directory } fn execution_state(&self) -> &runtimelib::ExecutionState { &self.execution_state } fn set_execution_state(&mut self, state: runtimelib::ExecutionState) { self.execution_state = state; } fn kernel_info(&self) -> Option<&runtimelib::KernelInfoReply> { self.kernel_info.as_ref() } fn set_kernel_info(&mut self, info: runtimelib::KernelInfoReply) { self.kernel_info = Some(info); } fn force_shutdown(&mut self, cx: &mut WindowContext) -> Task<anyhow::Result<()>> { let url = self .remote_server .api_url(&format!("/kernels/{}", self.kernel_id)); let token = self.remote_server.token.clone(); let http_client = self.http_client.clone(); cx.spawn(|_| async move { let request = Request::builder() .method("DELETE") .uri(&url) .header("Authorization", format!("token {}", token)) .body(AsyncBody::default())?; let response = http_client.send(request).await?; if response.status().is_success() { Ok(()) } else { Err(anyhow::anyhow!( "Failed to shutdown kernel: {}", response.status() )) } }) }}
use futures::{channel::mpsc, SinkExt as _};
use gpui::{Task, View, WindowContext};
use http_client::{AsyncBody, HttpClient, Request};
use jupyter_protocol::{ExecutionState, JupyterKernelspec, JupyterMessage, KernelInfoReply};
use futures::StreamExt;
use smol::io::AsyncReadExt as _;
use crate::Session;
use super::RunningKernel;
use anyhow::Result;
use jupyter_websocket_client::{
JupyterWebSocketReader, JupyterWebSocketWriter, KernelLaunchRequest, KernelSpecsResponse,
RemoteServer,
};
use std::{fmt::Debug, sync::Arc};
#[derive(Debug, Clone)]
pub struct RemoteKernelSpecification {
pub name: String,
pub url: String,
pub token: String,
pub kernelspec: JupyterKernelspec,
}
pub async fn launch_remote_kernel(
remote_server: &RemoteServer,
http_client: Arc<dyn HttpClient>,
kernel_name: &str,
_path: &str,
) -> Result<String> {
//
let kernel_launch_request = KernelLaunchRequest {
name: kernel_name.to_string(),
// Note: since the path we have locally may not be the same as the one on the remote server,
// we don't send it. We'll have to evaluate this decisiion along the way.
path: None,
};
let kernel_launch_request = serde_json::to_string(&kernel_launch_request)?;
let request = Request::builder()
.method("POST")
.uri(&remote_server.api_url("/kernels"))
.header("Authorization", format!("token {}", remote_server.token))
.body(AsyncBody::from(kernel_launch_request))?;
let response = http_client.send(request).await?;
if !response.status().is_success() {
let mut body = String::new();
response.into_body().read_to_string(&mut body).await?;
return Err(anyhow::anyhow!("Failed to launch kernel: {}", body));
}
let mut body = String::new();
response.into_body().read_to_string(&mut body).await?;
let response: jupyter_websocket_client::Kernel = serde_json::from_str(&body)?;
Ok(response.id)
}
pub async fn list_remote_kernelspecs(
remote_server: RemoteServer,
http_client: Arc<dyn HttpClient>,
) -> Result<Vec<RemoteKernelSpecification>> {
let url = remote_server.api_url("/kernelspecs");
let request = Request::builder()
.method("GET")
.uri(&url)
.header("Authorization", format!("token {}", remote_server.token))
.body(AsyncBody::default())?;
let response = http_client.send(request).await?;
if response.status().is_success() {
let mut body = response.into_body();
let mut body_bytes = Vec::new();
body.read_to_end(&mut body_bytes).await?;
let kernel_specs: KernelSpecsResponse = serde_json::from_slice(&body_bytes)?;
let remote_kernelspecs = kernel_specs
.kernelspecs
.into_iter()
.map(|(name, spec)| RemoteKernelSpecification {
name: name.clone(),
url: remote_server.base_url.clone(),
token: remote_server.token.clone(),
kernelspec: spec.spec,
})
.collect::<Vec<RemoteKernelSpecification>>();
if remote_kernelspecs.is_empty() {
Err(anyhow::anyhow!("No kernel specs found"))
} else {
Ok(remote_kernelspecs.clone())
}
} else {
Err(anyhow::anyhow!(
"Failed to fetch kernel specs: {}",
response.status()
))
}
}
impl PartialEq for RemoteKernelSpecification {
fn eq(&self, other: &Self) -> bool {
self.name == other.name && self.url == other.url
}
}
impl Eq for RemoteKernelSpecification {}
pub struct RemoteRunningKernel {
remote_server: RemoteServer,
_receiving_task: Task<Result<()>>,
_routing_task: Task<Result<()>>,
http_client: Arc<dyn HttpClient>,
pub working_directory: std::path::PathBuf,
pub request_tx: mpsc::Sender<JupyterMessage>,
pub execution_state: ExecutionState,
pub kernel_info: Option<KernelInfoReply>,
pub kernel_id: String,
}
impl RemoteRunningKernel {
pub fn new(
kernelspec: RemoteKernelSpecification,
working_directory: std::path::PathBuf,
session: View<Session>,
cx: &mut WindowContext,
) -> Task<Result<Box<dyn RunningKernel>>> {
let remote_server = RemoteServer {
base_url: kernelspec.url,
token: kernelspec.token,
};
let http_client = cx.http_client();
cx.spawn(|cx| async move {
let kernel_id = launch_remote_kernel(
&remote_server,
http_client.clone(),
&kernelspec.name,
working_directory.to_str().unwrap_or_default(),
)
.await?;
let (kernel_socket, _response) = remote_server.connect_to_kernel(&kernel_id).await?;
let (mut w, mut r): (JupyterWebSocketWriter, JupyterWebSocketReader) =
kernel_socket.split();
let (request_tx, mut request_rx) =
futures::channel::mpsc::channel::<JupyterMessage>(100);
let routing_task = cx.background_executor().spawn({
async move {
while let Some(message) = request_rx.next().await {
w.send(message).await.ok();
}
Ok(())
}
});
let receiving_task = cx.spawn({
let session = session.clone();
|mut cx| async move {
while let Some(message) = r.next().await {
match message {
Ok(message) => {
session
.update(&mut cx, |session, cx| {
session.route(&message, cx);
})
.ok();
}
Err(e) => {
log::error!("Error receiving message: {:?}", e);
}
}
}
Ok(())
}
});
anyhow::Ok(Box::new(Self {
_routing_task: routing_task,
_receiving_task: receiving_task,
remote_server,
working_directory,
request_tx,
// todo(kyle): pull this from the kernel API to start with
execution_state: ExecutionState::Idle,
kernel_info: None,
kernel_id,
http_client: http_client.clone(),
}) as Box<dyn RunningKernel>)
})
}
}
impl Debug for RemoteRunningKernel {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.debug_struct("RemoteRunningKernel")
// custom debug that keeps tokens out of logs
.field("remote_server url", &self.remote_server.base_url)
.field("working_directory", &self.working_directory)
.field("request_tx", &self.request_tx)
.field("execution_state", &self.execution_state)
.field("kernel_info", &self.kernel_info)
.finish()
}
}
impl RunningKernel for RemoteRunningKernel {
fn request_tx(&self) -> futures::channel::mpsc::Sender<runtimelib::JupyterMessage> {
self.request_tx.clone()
}
fn working_directory(&self) -> &std::path::PathBuf {
&self.working_directory
}
fn execution_state(&self) -> &runtimelib::ExecutionState {
&self.execution_state
}
fn set_execution_state(&mut self, state: runtimelib::ExecutionState) {
self.execution_state = state;
}
fn kernel_info(&self) -> Option<&runtimelib::KernelInfoReply> {
self.kernel_info.as_ref()
}
fn set_kernel_info(&mut self, info: runtimelib::KernelInfoReply) {
self.kernel_info = Some(info);
}
fn force_shutdown(&mut self, cx: &mut WindowContext) -> Task<anyhow::Result<()>> {
let url = self
.remote_server
.api_url(&format!("/kernels/{}", self.kernel_id));
let token = self.remote_server.token.clone();
let http_client = self.http_client.clone();
cx.spawn(|_| async move {
let request = Request::builder()
.method("DELETE")
.uri(&url)
.header("Authorization", format!("token {}", token))
.body(AsyncBody::default())?;
let response = http_client.send(request).await?;
if response.status().is_success() {
Ok(())
} else {
Err(anyhow::anyhow!(
"Failed to shutdown kernel: {}",
response.status()
))
}
})
}
}