Add a plugin API for reading HTTP response bodies

Plugins read bodies by response id through ctx.httpResponse.body()
instead of opening HttpResponse.bodyPath themselves. The accessors are
named after fetch's, minus the single-use semantics, since the bytes are
durable and re-reading should work.

Underneath is a chunked pull over the existing plugin protocol, so the
host can move bodies off the filesystem without plugins noticing.
text() now decodes with the response's charset rather than assuming
UTF-8, and the buffering accessors refuse past 32 MiB and point at
chunks().
This commit is contained in:
Gregory Schier
2026-08-16 09:20:29 -07:00
parent 6a02cbe525
commit 96c8a95094
18 changed files with 915 additions and 46 deletions
Generated
+1
View File
@@ -11196,6 +11196,7 @@ name = "yaak"
version = "0.1.0"
dependencies = [
"async-trait",
"base64 0.22.1",
"log 0.4.29",
"md5 0.8.0",
"serde_json",
+2
View File
@@ -12,6 +12,7 @@ use yaak::plugin_events::{
GroupedPluginEvent, HostRequest, SharedPluginEventContext, handle_shared_plugin_event,
};
use yaak::render::{render_grpc_request, render_http_request};
use yaak::response_body::FileResponseBodyStore;
use yaak::send::{SendHttpRequestWithPluginsParams, send_http_request_with_plugins};
use yaak_crypto::manager::EncryptionManager;
use yaak_http::cookies::get_cookie_value_from_jar;
@@ -131,6 +132,7 @@ async fn build_plugin_reply(
match handle_shared_plugin_event(
&host_context.query_manager,
&FileResponseBodyStore::new(&host_context.query_manager),
&event.payload,
SharedPluginEventContext { plugin_name, workspace_id: shared_workspace_id },
) {
@@ -16,6 +16,7 @@ use tauri_plugin_opener::OpenerExt;
use yaak::plugin_events::{
GroupedPluginEvent, HostRequest, SharedPluginEventContext, handle_shared_plugin_event,
};
use yaak::response_body::FileResponseBodyStore;
use yaak_crypto::manager::EncryptionManager;
use yaak_http::cookies::get_cookie_value_from_jar;
use yaak_models::models::{HttpResponse, Plugin};
@@ -54,6 +55,7 @@ pub(crate) async fn handle_plugin_event<R: Runtime>(
match handle_shared_plugin_event(
app_handle.db_manager().inner(),
&FileResponseBodyStore::new(app_handle.db_manager().inner()),
&event.payload,
SharedPluginEventContext {
plugin_name: &plugin_name,
File diff suppressed because one or more lines are too long
+62
View File
@@ -171,6 +171,12 @@ pub enum InternalEventPayload {
FindHttpResponsesRequest(FindHttpResponsesRequest),
FindHttpResponsesResponse(FindHttpResponsesResponse),
GetHttpResponseBodyInfoRequest(GetHttpResponseBodyInfoRequest),
GetHttpResponseBodyInfoResponse(GetHttpResponseBodyInfoResponse),
ReadHttpResponseBodyChunkRequest(ReadHttpResponseBodyChunkRequest),
ReadHttpResponseBodyChunkResponse(ReadHttpResponseBodyChunkResponse),
ListHttpRequestsRequest(ListHttpRequestsRequest),
ListHttpRequestsResponse(ListHttpRequestsResponse),
ListFoldersRequest(ListFoldersRequest),
@@ -1413,6 +1419,62 @@ pub struct FindHttpResponsesResponse {
pub http_responses: Vec<HttpResponse>,
}
/// Ask what a response's body is, before deciding whether to pull it.
///
/// Bodies are addressed by response id and never by path, so where the host
/// keeps the bytes is its own business.
#[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
#[serde(default, rename_all = "camelCase")]
#[ts(export, export_to = "gen_events.ts")]
pub struct GetHttpResponseBodyInfoRequest {
pub response_id: String,
}
#[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
#[serde(default, rename_all = "camelCase")]
#[ts(export, export_to = "gen_events.ts")]
pub struct GetHttpResponseBodyInfoResponse {
/// How many bytes are actually stored, which is not necessarily what the
/// `Content-Length` header claimed. Zero when the response has no body.
#[ts(type = "number")]
pub content_length: u64,
/// The response's `Content-Type` header, verbatim, so the reader can pick a
/// charset.
#[ts(optional = nullable)]
pub content_type: Option<String>,
}
/// Pull one window of a response body.
///
/// Reads are idempotent: the bytes live in durable storage, so the same window
/// can be asked for as many times as the plugin likes.
#[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
#[serde(default, rename_all = "camelCase")]
#[ts(export, export_to = "gen_events.ts")]
pub struct ReadHttpResponseBodyChunkRequest {
pub response_id: String,
#[ts(type = "number")]
pub offset: u64,
#[ts(type = "number")]
pub length: u64,
}
#[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
#[serde(default, rename_all = "camelCase")]
#[ts(export, export_to = "gen_events.ts")]
pub struct ReadHttpResponseBodyChunkResponse {
/// Base64, because the desktop transport is a WebSocket that only sends
/// text frames today. A host that can carry binary sends the bytes as they
/// are and fills this in from them.
pub data: String,
/// Bytes decoded from `data`. Short of the requested length means the body
/// ended here.
#[ts(type = "number")]
pub length: u64,
}
#[derive(Debug, Clone, Default, Serialize, Deserialize, TS)]
#[serde(default, rename_all = "camelCase")]
#[ts(export, export_to = "gen_events.ts")]
+1
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@@ -6,6 +6,7 @@ publish = false
[dependencies]
async-trait = "0.1"
base64 = "0.22.1" # For carrying body chunks over a text-only plugin transport
log = { workspace = true }
md5 = "0.8.0"
serde_json = { workspace = true }
+1
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@@ -3,6 +3,7 @@ pub mod export;
pub mod import;
pub mod plugin_events;
pub mod render;
pub mod response_body;
pub mod send;
pub use error::Error;
+172 -16
View File
@@ -1,3 +1,6 @@
use crate::response_body::ResponseBodyStore;
use base64::Engine;
use base64::prelude::BASE64_STANDARD;
use yaak_models::models::AnyModel;
use yaak_models::query_manager::QueryManager;
use yaak_models::util::UpdateSource;
@@ -5,12 +8,14 @@ use yaak_plugins::events::{
CloseWindowRequest, CopyTextRequest, DeleteKeyValueRequest, DeleteKeyValueResponse,
DeleteModelRequest, DeleteModelResponse, ErrorResponse, FindHttpResponsesRequest,
FindHttpResponsesResponse, GetCookieValueRequest, GetHttpRequestByIdRequest,
GetHttpRequestByIdResponse, GetKeyValueRequest, GetKeyValueResponse, InternalEventPayload,
ListCookieNamesRequest, ListFoldersRequest, ListFoldersResponse, ListHttpRequestsRequest,
ListHttpRequestsResponse, ListOpenWorkspacesRequest, OpenExternalUrlRequest, OpenWindowRequest,
PromptFormRequest, PromptTextRequest, ReloadResponse, RenderGrpcRequestRequest,
RenderHttpRequestRequest, SendHttpRequestRequest, SetKeyValueRequest, ShowToastRequest,
TemplateRenderRequest, UpsertModelRequest, UpsertModelResponse, WindowInfoRequest,
GetHttpRequestByIdResponse, GetHttpResponseBodyInfoRequest, GetHttpResponseBodyInfoResponse,
GetKeyValueRequest, GetKeyValueResponse, InternalEventPayload, ListCookieNamesRequest,
ListFoldersRequest, ListFoldersResponse, ListHttpRequestsRequest, ListHttpRequestsResponse,
ListOpenWorkspacesRequest, OpenExternalUrlRequest, OpenWindowRequest, PromptFormRequest,
PromptTextRequest, ReadHttpResponseBodyChunkRequest, ReadHttpResponseBodyChunkResponse,
ReloadResponse, RenderGrpcRequestRequest, RenderHttpRequestRequest, SendHttpRequestRequest,
SetKeyValueRequest, ShowToastRequest, TemplateRenderRequest, UpsertModelRequest,
UpsertModelResponse, WindowInfoRequest,
};
pub struct SharedPluginEventContext<'a> {
@@ -40,6 +45,8 @@ pub enum SharedRequest<'a> {
ListFolders(&'a ListFoldersRequest),
ListHttpRequests(&'a ListHttpRequestsRequest),
FindHttpResponses(&'a FindHttpResponsesRequest),
GetHttpResponseBodyInfo(&'a GetHttpResponseBodyInfoRequest),
ReadHttpResponseBodyChunk(&'a ReadHttpResponseBodyChunkRequest),
UpsertModel(&'a UpsertModelRequest),
DeleteModel(&'a DeleteModelRequest),
}
@@ -136,6 +143,12 @@ impl<'a> From<&'a InternalEventPayload> for GroupedPluginRequest<'a> {
InternalEventPayload::FindHttpResponsesRequest(req) => {
GroupedPluginRequest::Shared(SharedRequest::FindHttpResponses(req))
}
InternalEventPayload::GetHttpResponseBodyInfoRequest(req) => {
GroupedPluginRequest::Shared(SharedRequest::GetHttpResponseBodyInfo(req))
}
InternalEventPayload::ReadHttpResponseBodyChunkRequest(req) => {
GroupedPluginRequest::Shared(SharedRequest::ReadHttpResponseBodyChunk(req))
}
InternalEventPayload::UpsertModelRequest(req) => {
GroupedPluginRequest::Shared(SharedRequest::UpsertModel(req))
}
@@ -182,13 +195,17 @@ impl<'a> From<&'a InternalEventPayload> for GroupedPluginRequest<'a> {
pub fn handle_shared_plugin_event<'a>(
query_manager: &QueryManager,
body_store: &dyn ResponseBodyStore,
payload: &'a InternalEventPayload,
context: SharedPluginEventContext<'_>,
) -> GroupedPluginEvent<'a> {
match GroupedPluginRequest::from(payload) {
GroupedPluginRequest::Shared(req) => {
GroupedPluginEvent::Handled(Some(build_shared_reply(query_manager, req, context)))
}
GroupedPluginRequest::Shared(req) => GroupedPluginEvent::Handled(Some(build_shared_reply(
query_manager,
body_store,
req,
context,
))),
GroupedPluginRequest::Host(req) => GroupedPluginEvent::ToHandle(req),
GroupedPluginRequest::Ignore => GroupedPluginEvent::Handled(None),
}
@@ -196,6 +213,7 @@ pub fn handle_shared_plugin_event<'a>(
fn build_shared_reply(
query_manager: &QueryManager,
body_store: &dyn ResponseBodyStore,
request: SharedRequest<'_>,
context: SharedPluginEventContext<'_>,
) -> InternalEventPayload {
@@ -283,6 +301,30 @@ fn build_shared_reply(
http_responses,
})
}
SharedRequest::GetHttpResponseBodyInfo(req) => match body_store.info(&req.response_id) {
Ok(info) => InternalEventPayload::GetHttpResponseBodyInfoResponse(
GetHttpResponseBodyInfoResponse {
content_length: info.content_length,
content_type: info.content_type,
},
),
Err(err) => InternalEventPayload::ErrorResponse(ErrorResponse {
error: format!("Failed to read body of response {}: {err}", req.response_id),
}),
},
SharedRequest::ReadHttpResponseBodyChunk(req) => {
match body_store.read_chunk(&req.response_id, req.offset, req.length) {
Ok(bytes) => InternalEventPayload::ReadHttpResponseBodyChunkResponse(
ReadHttpResponseBodyChunkResponse {
length: bytes.len() as u64,
data: BASE64_STANDARD.encode(bytes),
},
),
Err(err) => InternalEventPayload::ErrorResponse(ErrorResponse {
error: format!("Failed to read body of response {}: {err}", req.response_id),
}),
}
}
SharedRequest::UpsertModel(req) => {
use AnyModel::*;
@@ -437,10 +479,26 @@ fn build_shared_reply(
#[cfg(test)]
mod tests {
use super::*;
use crate::response_body::{FileResponseBodyStore, ResponseBodyInfo};
use std::cell::RefCell;
use tempfile::TempDir;
use yaak_models::models::{AnyModel, Folder, HttpRequest, Workspace};
use yaak_models::util::UpdateSource;
/// The real dispatch, with the store the desktop and CLI hand it.
fn dispatch<'a>(
query_manager: &QueryManager,
payload: &'a InternalEventPayload,
context: SharedPluginEventContext<'_>,
) -> GroupedPluginEvent<'a> {
handle_shared_plugin_event(
query_manager,
&FileResponseBodyStore::new(query_manager),
payload,
context,
)
}
fn seed_query_manager() -> (QueryManager, TempDir) {
let temp_dir = TempDir::new().expect("Failed to create temp dir");
let db_path = temp_dir.path().join("db.sqlite");
@@ -498,7 +556,7 @@ mod tests {
let payload = InternalEventPayload::ListHttpRequestsRequest(
yaak_plugins::events::ListHttpRequestsRequest { folder_id: None },
);
let result = handle_shared_plugin_event(
let result = dispatch(
&query_manager,
&payload,
SharedPluginEventContext { plugin_name: "@yaak/test", workspace_id: None },
@@ -517,7 +575,7 @@ mod tests {
let by_workspace_payload = InternalEventPayload::ListHttpRequestsRequest(
yaak_plugins::events::ListHttpRequestsRequest { folder_id: None },
);
let by_workspace = handle_shared_plugin_event(
let by_workspace = dispatch(
&query_manager,
&by_workspace_payload,
SharedPluginEventContext { plugin_name: "@yaak/test", workspace_id: Some("wk_test") },
@@ -536,7 +594,7 @@ mod tests {
folder_id: Some("fl_test".to_string()),
},
);
let by_folder = handle_shared_plugin_event(
let by_folder = dispatch(
&query_manager,
&by_folder_payload,
SharedPluginEventContext { plugin_name: "@yaak/test", workspace_id: None },
@@ -559,7 +617,7 @@ mod tests {
limit: Some(1),
});
let result = handle_shared_plugin_event(
let result = dispatch(
&query_manager,
&payload,
SharedPluginEventContext { plugin_name: "@yaak/test", workspace_id: Some("wk_test") },
@@ -575,6 +633,104 @@ mod tests {
}
}
/// A store that answers from memory, standing in for whatever holds the
/// bytes — the point being that the dispatch below never learns which.
struct FakeBodyStore {
body: Vec<u8>,
reads: RefCell<Vec<(u64, u64)>>,
}
impl ResponseBodyStore for FakeBodyStore {
fn info(&self, _response_id: &str) -> crate::error::Result<ResponseBodyInfo> {
Ok(ResponseBodyInfo {
content_length: self.body.len() as u64,
content_type: Some("text/plain; charset=utf-8".to_string()),
})
}
fn read_chunk(
&self,
_response_id: &str,
offset: u64,
length: u64,
) -> crate::error::Result<Vec<u8>> {
self.reads.borrow_mut().push((offset, length));
let start = (offset as usize).min(self.body.len());
let end = (start + length as usize).min(self.body.len());
Ok(self.body[start..end].to_vec())
}
}
#[test]
fn response_body_is_read_by_id_through_the_store() {
let (query_manager, _temp_dir) = seed_query_manager();
let store = FakeBodyStore { body: b"hello".to_vec(), reads: RefCell::new(Vec::new()) };
let info_payload = InternalEventPayload::GetHttpResponseBodyInfoRequest(
GetHttpResponseBodyInfoRequest { response_id: "rs_test".to_string() },
);
let info = handle_shared_plugin_event(
&query_manager,
&store,
&info_payload,
SharedPluginEventContext { plugin_name: "@yaak/test", workspace_id: None },
);
match info {
GroupedPluginEvent::Handled(Some(
InternalEventPayload::GetHttpResponseBodyInfoResponse(resp),
)) => {
assert_eq!(resp.content_length, 5);
assert_eq!(resp.content_type.as_deref(), Some("text/plain; charset=utf-8"));
}
other => panic!("unexpected body info result: {other:?}"),
}
let chunk_payload = InternalEventPayload::ReadHttpResponseBodyChunkRequest(
ReadHttpResponseBodyChunkRequest {
response_id: "rs_test".to_string(),
offset: 1,
length: 3,
},
);
let chunk = handle_shared_plugin_event(
&query_manager,
&store,
&chunk_payload,
SharedPluginEventContext { plugin_name: "@yaak/test", workspace_id: None },
);
match chunk {
GroupedPluginEvent::Handled(Some(
InternalEventPayload::ReadHttpResponseBodyChunkResponse(resp),
)) => {
assert_eq!(resp.length, 3);
assert_eq!(BASE64_STANDARD.decode(resp.data).unwrap(), b"ell");
}
other => panic!("unexpected body chunk result: {other:?}"),
}
assert_eq!(*store.reads.borrow(), vec![(1, 3)]);
}
#[test]
fn an_unreadable_response_body_becomes_an_error_reply() {
let (query_manager, _temp_dir) = seed_query_manager();
let payload = InternalEventPayload::GetHttpResponseBodyInfoRequest(
GetHttpResponseBodyInfoRequest { response_id: "rs_never_persisted".to_string() },
);
let result = dispatch(
&query_manager,
&payload,
SharedPluginEventContext { plugin_name: "@yaak/test", workspace_id: None },
);
match result {
GroupedPluginEvent::Handled(Some(InternalEventPayload::ErrorResponse(resp))) => {
assert!(resp.error.contains("rs_never_persisted"), "unhelpful error: {}", resp.error)
}
other => panic!("unexpected missing-response result: {other:?}"),
}
}
#[test]
fn upsert_and_delete_model_are_shared_handled() {
let (query_manager, _temp_dir) = seed_query_manager();
@@ -590,7 +746,7 @@ mod tests {
}),
});
let upsert_result = handle_shared_plugin_event(
let upsert_result = dispatch(
&query_manager,
&upsert_payload,
SharedPluginEventContext { plugin_name: "@yaak/test", workspace_id: Some("wk_test") },
@@ -609,7 +765,7 @@ mod tests {
model: "http_request".to_string(),
id: "rq_test".to_string(),
});
let delete_result = handle_shared_plugin_event(
let delete_result = dispatch(
&query_manager,
&delete_payload,
SharedPluginEventContext { plugin_name: "@yaak/test", workspace_id: Some("wk_test") },
@@ -631,7 +787,7 @@ mod tests {
let payload = InternalEventPayload::WindowInfoRequest(WindowInfoRequest {
label: "main".to_string(),
});
let result = handle_shared_plugin_event(
let result = dispatch(
&query_manager,
&payload,
SharedPluginEventContext { plugin_name: "@yaak/test", workspace_id: None },
+197
View File
@@ -0,0 +1,197 @@
//! Reading response bodies back out, by response id.
//!
//! Plugins only ever name a response. Where its bytes actually live — files the
//! engine wrote under `<data dir>/responses/<id>` today, blob rows later — is
//! behind [`ResponseBodyStore`], so moving the bytes is a change to this file
//! and nothing a plugin can see.
use crate::error::Result;
use std::fs::File;
use std::io::{Read, Seek, SeekFrom};
use yaak_models::query_manager::QueryManager;
/// The most bytes one read will hand back, however much was asked for.
///
/// A chunk is buffered whole and, on the desktop transport, base64'd into a
/// single WebSocket frame, so an unbounded request is a way to make the host
/// allocate on a plugin's say-so.
pub const MAX_CHUNK_BYTES: u64 = 8 * 1024 * 1024;
/// What a stored body is, without reading any of it.
#[derive(Debug, Clone, Default)]
pub struct ResponseBodyInfo {
/// Bytes actually stored, which is not necessarily what `Content-Length`
/// claimed. Zero when the response has no body.
pub content_length: u64,
/// The response's `Content-Type` header, verbatim.
pub content_type: Option<String>,
}
/// Somewhere response bodies can be read from, a window at a time.
///
/// Reads are repeatable — the bytes are durable, so nothing is consumed by
/// looking at it.
pub trait ResponseBodyStore {
fn info(&self, response_id: &str) -> Result<ResponseBodyInfo>;
/// Bytes `[offset, offset + length)`, clamped to what is there. A short
/// read means the body ended.
fn read_chunk(&self, response_id: &str, offset: u64, length: u64) -> Result<Vec<u8>>;
}
/// The desktop and CLI store: the database says where the file is, and the
/// filesystem holds it.
pub struct FileResponseBodyStore<'a> {
query_manager: &'a QueryManager,
}
impl<'a> FileResponseBodyStore<'a> {
pub fn new(query_manager: &'a QueryManager) -> Self {
Self { query_manager }
}
/// The file backing a response, or `None` when the response stored no body.
///
/// A response that was never persisted (GraphQL introspection and other
/// ephemeral sends) has no row here at all, so it fails as "not found"
/// rather than reading as an empty body.
fn body_path(&self, response_id: &str) -> Result<Option<String>> {
Ok(self.query_manager.connect().get_http_response(response_id)?.body_path)
}
}
impl ResponseBodyStore for FileResponseBodyStore<'_> {
fn info(&self, response_id: &str) -> Result<ResponseBodyInfo> {
let response = self.query_manager.connect().get_http_response(response_id)?;
let content_type = response
.headers
.iter()
.find(|h| h.name.eq_ignore_ascii_case("content-type"))
.map(|h| h.value.clone());
let content_length = match response.body_path {
Some(path) => std::fs::metadata(path)?.len(),
None => 0,
};
Ok(ResponseBodyInfo { content_length, content_type })
}
fn read_chunk(&self, response_id: &str, offset: u64, length: u64) -> Result<Vec<u8>> {
let Some(path) = self.body_path(response_id)? else {
return Ok(Vec::new());
};
let length = length.min(MAX_CHUNK_BYTES);
if length == 0 {
return Ok(Vec::new());
}
let mut file = File::open(path)?;
file.seek(SeekFrom::Start(offset))?;
let mut buf = Vec::new();
file.take(length).read_to_end(&mut buf)?;
Ok(buf)
}
}
#[cfg(test)]
mod tests {
use super::*;
use std::io::Write;
use tempfile::TempDir;
use yaak_models::models::{HttpRequest, HttpResponse, HttpResponseHeader, Workspace};
use yaak_models::util::UpdateSource;
fn seed(body: Option<&[u8]>) -> (QueryManager, TempDir, String) {
let temp_dir = TempDir::new().unwrap();
let (query_manager, blob_manager, _rx) = yaak_models::init_standalone(
&temp_dir.path().join("db.sqlite"),
&temp_dir.path().join("blobs.sqlite"),
)
.unwrap();
query_manager
.connect()
.upsert_workspace(
&Workspace { id: "wk_test".to_string(), ..Default::default() },
&UpdateSource::Sync,
)
.unwrap();
query_manager
.connect()
.upsert_http_request(
&HttpRequest {
id: "rq_test".to_string(),
workspace_id: "wk_test".to_string(),
..Default::default()
},
&UpdateSource::Sync,
)
.unwrap();
let body_path = body.map(|bytes| {
let path = temp_dir.path().join("body");
let mut f = std::fs::File::create(&path).unwrap();
f.write_all(bytes).unwrap();
path.to_string_lossy().to_string()
});
let response = query_manager
.connect()
.upsert_http_response(
&HttpResponse {
workspace_id: "wk_test".to_string(),
request_id: "rq_test".to_string(),
body_path,
headers: vec![HttpResponseHeader {
name: "Content-Type".to_string(),
value: "application/json; charset=utf-8".to_string(),
}],
..Default::default()
},
&UpdateSource::Sync,
&blob_manager,
)
.unwrap();
let id = response.id.clone();
(query_manager, temp_dir, id)
}
#[test]
fn info_reports_stored_size_and_content_type() {
let (qm, _tmp, id) = seed(Some(b"hello world"));
let info = FileResponseBodyStore::new(&qm).info(&id).unwrap();
assert_eq!(info.content_length, 11);
assert_eq!(info.content_type.as_deref(), Some("application/json; charset=utf-8"));
}
#[test]
fn chunks_cover_the_body_and_stop_short_at_the_end() {
let (qm, _tmp, id) = seed(Some(b"hello world"));
let store = FileResponseBodyStore::new(&qm);
assert_eq!(store.read_chunk(&id, 0, 5).unwrap(), b"hello");
assert_eq!(store.read_chunk(&id, 6, 100).unwrap(), b"world");
assert!(store.read_chunk(&id, 11, 100).unwrap().is_empty());
// Reading the same window twice gives the same bytes; nothing is consumed.
assert_eq!(store.read_chunk(&id, 0, 5).unwrap(), b"hello");
}
#[test]
fn a_response_with_no_body_is_empty_not_an_error() {
let (qm, _tmp, id) = seed(None);
let store = FileResponseBodyStore::new(&qm);
assert_eq!(store.info(&id).unwrap().content_length, 0);
assert!(store.read_chunk(&id, 0, 100).unwrap().is_empty());
}
#[test]
fn an_unknown_response_fails() {
let (qm, _tmp, _id) = seed(Some(b"hi"));
assert!(FileResponseBodyStore::new(&qm).info("rs_nope").is_err());
}
}
+1 -1
View File
@@ -17226,7 +17226,7 @@
},
"packages/plugin-runtime-types": {
"name": "@yaakapp/api",
"version": "0.8.0",
"version": "0.9.0",
"dependencies": {
"@types/node": "^24.0.13"
},
+1 -1
View File
@@ -1,6 +1,6 @@
{
"name": "@yaakapp/api",
"version": "0.8.0",
"version": "0.9.0",
"keywords": [
"api-client",
"bruno-alternative",
File diff suppressed because one or more lines are too long
@@ -6,6 +6,7 @@ import type {
GetCookieValueResponse,
GetHttpRequestByIdRequest,
GetHttpRequestByIdResponse,
GetHttpResponseBodyInfoRequest,
JsonPrimitive,
ListCookieNamesResponse,
ListFoldersRequest,
@@ -65,6 +66,56 @@ type DynamicPromptFormRequest = Omit<PromptFormRequest, "inputs"> & {
export type WorkspaceHandle = Pick<WorkspaceInfo, "id" | "name">;
export interface ReadHttpResponseBodyOptions {
/**
* Refuse to buffer a body larger than this, in bytes. Defaults to 32 MiB.
* Pass `Infinity` to read whatever is there.
*/
maxBytes?: number;
/** Bytes to pull from the host at a time. Defaults to 1 MiB. */
chunkSize?: number;
}
/**
* A response body, read back from wherever the host stored it.
*
* The accessors are named after `fetch`'s, but unlike `fetch` the body is not
* used up by reading it: these bytes are in durable storage, so every accessor
* can be called as many times as you like, in any order.
*/
export interface HttpResponseBody {
/** The response these bytes belong to. */
readonly responseId: string;
/**
* How many bytes are stored, which is not necessarily what the
* `Content-Length` header claimed. Zero when the response has no body.
*/
readonly contentLength: number;
/** The response's `Content-Type` header, verbatim, or null if it had none. */
readonly contentType: string | null;
/**
* The body decoded to a string, using the charset from `contentType` and
* falling back to UTF-8. Throws if the body is over `maxBytes`.
*/
text(options?: ReadHttpResponseBodyOptions): Promise<string>;
/** `text()`, parsed as JSON. */
json<T = unknown>(options?: ReadHttpResponseBodyOptions): Promise<T>;
/** The raw bytes. Throws if the body is over `maxBytes`. */
arrayBuffer(options?: ReadHttpResponseBodyOptions): Promise<ArrayBuffer>;
/**
* The raw bytes, a chunk at a time, so a body of any size can be read
* without holding all of it at once. Not subject to `maxBytes`.
*/
chunks(options?: Pick<ReadHttpResponseBodyOptions, "chunkSize">): AsyncIterable<Uint8Array>;
}
export interface Context {
clipboard: {
copyText(text: string): Promise<void>;
@@ -129,6 +180,12 @@ export interface Context {
};
httpResponse: {
find(args: FindHttpResponsesRequest): Promise<FindHttpResponsesResponse["httpResponses"]>;
/**
* Read a response's body by id. Where the host keeps the bytes — files on
* a desktop, rows in a database, somewhere else later — is not something a
* plugin sees or should depend on.
*/
body(args: GetHttpResponseBodyInfoRequest): Promise<HttpResponseBody>;
};
templates: {
render<T extends JsonValue>(args: TemplateRenderRequest & { data: T }): Promise<T>;
@@ -13,7 +13,12 @@ import type { WorkspaceActionPlugin } from "./WorkspaceActionPlugin";
export type { Context };
export type { DynamicAuthenticationArg } from "./AuthenticationPlugin";
export type { CallPromptFormDynamicArgs, DynamicPromptFormArg } from "./Context";
export type {
CallPromptFormDynamicArgs,
DynamicPromptFormArg,
HttpResponseBody,
ReadHttpResponseBodyOptions,
} from "./Context";
export type { DynamicTemplateFunctionArg } from "./TemplateFunctionPlugin";
export type { TemplateFunctionPlugin };
export type { FolderActionPlugin } from "./FolderActionPlugin";
+35 -1
View File
@@ -21,6 +21,7 @@ import type {
GetCookieValueRequest,
GetCookieValueResponse,
GetHttpRequestByIdResponse,
GetHttpResponseBodyInfoResponse,
GetKeyValueResponse,
GrpcRequestAction,
HttpAuthenticationAction,
@@ -37,6 +38,7 @@ import type {
PluginContext,
PromptFormResponse,
PromptTextResponse,
ReadHttpResponseBodyChunkResponse,
RenderGrpcRequestResponse,
RenderHttpRequestResponse,
SendHttpRequestResponse,
@@ -49,6 +51,7 @@ import type {
import { applyDynamicFormInput } from "./common";
import { EventChannel } from "./EventChannel";
import { migrateTemplateFunctionSelectOptions } from "./migrations";
import { createResponseBody, decodeBase64Chunk } from "./responseBody";
export interface PluginWorkerData {
bootRequest: BootRequest;
@@ -555,16 +558,24 @@ export class PluginInstance {
#sendForReply<T extends Omit<InternalEventPayload, "type">>(
context: PluginContext,
payload: InternalEventPayload,
// Off by default because a reply-shaped object with none of the expected
// fields is what every existing caller already copes with; turning it on
// for a new call is how that stops spreading.
{ throwOnError = false }: { throwOnError?: boolean } = {},
): Promise<T> {
// 1. Build event to send
const eventToSend = this.#buildEventToSend(context, payload, null);
// 2. Spawn listener in background
const promise = new Promise<T>((resolve) => {
const promise = new Promise<T>((resolve, reject) => {
const cb = (event: InternalEvent) => {
if (event.replyId === eventToSend.id) {
this.#appToPluginEvents.unlisten(cb); // Unlisten, now that we're done
const { type: _, ...payload } = event.payload;
if (throwOnError && event.payload.type === "error_response") {
reject(new Error(String((payload as { error?: string }).error ?? "Unknown error")));
return;
}
resolve(payload as T);
}
};
@@ -751,6 +762,29 @@ export class PluginInstance {
);
return httpResponses;
},
body: async ({ responseId }) => {
const info = await this.#sendForReply<GetHttpResponseBodyInfoResponse>(
context,
{ type: "get_http_response_body_info_request", responseId },
{ throwOnError: true },
);
return createResponseBody(
{
responseId,
contentLength: info.contentLength,
contentType: info.contentType ?? null,
},
async (offset, length) => {
const chunk = await this.#sendForReply<ReadHttpResponseBodyChunkResponse>(
context,
{ type: "read_http_response_body_chunk_request", responseId, offset, length },
{ throwOnError: true },
);
return decodeBase64Chunk(chunk.data);
},
);
},
},
grpcRequest: {
render: async (args) => {
+151
View File
@@ -0,0 +1,151 @@
import type { HttpResponseBody, ReadHttpResponseBodyOptions } from "@yaakapp/api";
/** Bytes pulled from the host per round trip, when the caller doesn't say. */
const DEFAULT_CHUNK_SIZE = 1024 * 1024;
/**
* The most a plugin buffers by default.
*
* Reading a body used to be unbounded, so any ceiling is an improvement; this
* one is set well above what an API returns and well below what makes the
* plugin runtime fall over. `chunks()` has no ceiling, and any caller that
* really wants the whole thing can raise `maxBytes`.
*/
const DEFAULT_MAX_BYTES = 32 * 1024 * 1024;
/** Fetch one window of body bytes from the host. */
export type ReadResponseBodyChunk = (offset: number, length: number) => Promise<Uint8Array>;
export interface ResponseBodyInfo {
responseId: string;
contentLength: number;
contentType: string | null;
}
export function createResponseBody(
info: ResponseBodyInfo,
readChunk: ReadResponseBodyChunk,
): HttpResponseBody {
const { responseId, contentLength, contentType } = info;
async function* chunks(
options?: Pick<ReadHttpResponseBodyOptions, "chunkSize">,
): AsyncIterable<Uint8Array> {
const chunkSize = Math.max(1, Math.floor(options?.chunkSize ?? DEFAULT_CHUNK_SIZE));
let offset = 0;
// Bounded by the length the host reported, but a short read still ends it:
// the body may have been rewritten between the two calls.
while (offset < contentLength) {
const chunk = await readChunk(offset, Math.min(chunkSize, contentLength - offset));
if (chunk.byteLength === 0) return;
yield chunk;
offset += chunk.byteLength;
}
}
async function readAll(accessor: string, options?: ReadHttpResponseBodyOptions) {
const maxBytes = options?.maxBytes ?? DEFAULT_MAX_BYTES;
refuseIfTooBig(accessor, contentLength, maxBytes);
const parts: Uint8Array[] = [];
let total = 0;
for await (const chunk of chunks(options)) {
total += chunk.byteLength;
// The size the host reported is a claim about a moment ago, so check the
// bytes actually arriving too.
refuseIfTooBig(accessor, total, maxBytes);
parts.push(chunk);
}
const bytes = new Uint8Array(total);
let offset = 0;
for (const part of parts) {
bytes.set(part, offset);
offset += part.byteLength;
}
return bytes;
}
return {
responseId,
contentLength,
contentType,
chunks,
async arrayBuffer(options) {
const bytes = await readAll("arrayBuffer", options);
return bytes.buffer as ArrayBuffer;
},
async text(options) {
return decodeBody(await readAll("text", options), contentType);
},
async json<T>(options?: ReadHttpResponseBodyOptions) {
return JSON.parse(decodeBody(await readAll("json", options), contentType)) as T;
},
};
}
function refuseIfTooBig(accessor: string, bytes: number, maxBytes: number) {
if (bytes <= maxBytes) return;
throw new Error(
`Response body is ${formatBytes(bytes)}, over the ${formatBytes(maxBytes)} limit for ` +
`${accessor}(). Read it with chunks() instead, or pass a larger maxBytes.`,
);
}
/**
* Decode using the charset the response declared.
*
* Assuming UTF-8 mangles every response that isn't, and the header is right
* there. An unknown label is the one case worth guessing on, since the
* alternative is refusing to read a body we can very likely still read.
*/
function decodeBody(bytes: Uint8Array, contentType: string | null): string {
const charset = parseCharset(contentType);
if (charset != null) {
try {
return new TextDecoder(charset).decode(bytes);
} catch {
// Not a label this runtime knows.
}
}
// TextDecoder drops a leading BOM on its own.
return new TextDecoder("utf-8").decode(bytes);
}
function parseCharset(contentType: string | null): string | null {
const match = contentType?.match(/;\s*charset\s*=\s*"?([^";]+)"?/i);
return match?.[1]?.trim() || null;
}
function formatBytes(bytes: number): string {
if (bytes === Infinity) return "unlimited";
if (bytes < 1024) return `${bytes} B`;
const units = ["KB", "MB", "GB"];
let value = bytes / 1024;
let unit = 0;
while (value >= 1024 && unit < units.length - 1) {
value /= 1024;
unit++;
}
return `${value.toFixed(1)} ${units[unit]}`;
}
/**
* Decode a chunk that arrived as base64.
*
* The desktop transport is a WebSocket carrying JSON text frames, so bytes
* have to be spelled out. A host that can pass an ArrayBuffer along skips this.
*/
export function decodeBase64Chunk(data: string): Uint8Array {
if (typeof Buffer !== "undefined") {
const buf = Buffer.from(data, "base64");
return new Uint8Array(buf.buffer, buf.byteOffset, buf.byteLength);
}
const binary = atob(data);
const bytes = new Uint8Array(binary.length);
for (let i = 0; i < binary.length; i++) {
bytes[i] = binary.charCodeAt(i);
}
return bytes;
}
@@ -0,0 +1,122 @@
import { describe, expect, test } from "vite-plus/test";
import { createResponseBody, decodeBase64Chunk } from "../src/responseBody";
/** A store of bytes that records every window it was asked for. */
function fakeBody(bytes: Uint8Array, contentType: string | null) {
const reads: Array<[number, number]> = [];
const body = createResponseBody(
{ responseId: "rs_test", contentLength: bytes.byteLength, contentType },
async (offset, length) => {
reads.push([offset, length]);
return bytes.slice(offset, offset + length);
},
);
return { body, reads };
}
function utf8(text: string) {
return new TextEncoder().encode(text);
}
describe("response body", () => {
test("pulls a body in chunks and reassembles it", async () => {
const { body, reads } = fakeBody(utf8("abcdefghij"), "text/plain");
expect(await body.text({ chunkSize: 4 })).toEqual("abcdefghij");
expect(reads).toEqual([
[0, 4],
[4, 4],
[8, 2],
]);
});
test("can be read more than once, unlike fetch", async () => {
const { body } = fakeBody(utf8('{"a":1}'), "application/json");
expect(await body.text()).toEqual('{"a":1}');
expect(await body.json()).toEqual({ a: 1 });
expect(new Uint8Array(await body.arrayBuffer())).toEqual(utf8('{"a":1}'));
});
test("decodes using the charset the response declared", async () => {
// "café naïve" as Latin-1, which is mojibake if read as UTF-8.
const latin1 = new Uint8Array([0x63, 0x61, 0x66, 0xe9, 0x20, 0x6e, 0x61, 0xef, 0x76, 0x65]);
const declared = fakeBody(latin1, "text/plain; charset=iso-8859-1");
expect(await declared.body.text()).toEqual("café naïve");
const undeclared = fakeBody(latin1, "text/plain");
expect(await undeclared.body.text()).not.toEqual("café naïve");
});
test("falls back to UTF-8 for a charset the runtime doesn't know", async () => {
const { body } = fakeBody(utf8("hello"), "text/plain; charset=not-a-real-charset");
expect(await body.text()).toEqual("hello");
});
test("drops a UTF-8 BOM", async () => {
const withBom = new Uint8Array([0xef, 0xbb, 0xbf, ...utf8('{"a":1}')]);
const { body } = fakeBody(withBom, "application/json");
expect(await body.text()).toEqual('{"a":1}');
expect(await body.json()).toEqual({ a: 1 });
});
test("refuses to buffer past maxBytes, and says what to do instead", async () => {
const { body } = fakeBody(utf8("x".repeat(100)), "text/plain");
await expect(body.text({ maxBytes: 50 })).rejects.toThrow(/chunks\(\)/);
await expect(body.json({ maxBytes: 50 })).rejects.toThrow(/over the/);
await expect(body.arrayBuffer({ maxBytes: 50 })).rejects.toThrow(/arrayBuffer\(\)/);
// The ceiling is the caller's to raise.
expect(await body.text({ maxBytes: 100 })).toHaveLength(100);
});
test("streams past maxBytes through chunks()", async () => {
const { body } = fakeBody(utf8("x".repeat(100)), "text/plain");
let total = 0;
for await (const chunk of body.chunks({ chunkSize: 10 })) {
total += chunk.byteLength;
}
expect(total).toEqual(100);
});
test("stops early when the host runs out of bytes sooner than it claimed", async () => {
// contentLength says 100; the store only ever hands back 10.
const body = createResponseBody(
{ responseId: "rs_test", contentLength: 100, contentType: "text/plain" },
async (offset) => (offset === 0 ? utf8("0123456789") : new Uint8Array()),
);
expect(await body.text()).toEqual("0123456789");
});
test("a response with no body reads as empty", async () => {
const { body, reads } = fakeBody(new Uint8Array(), "application/json");
expect(body.contentLength).toEqual(0);
expect(await body.text()).toEqual("");
expect(reads).toEqual([]);
});
test("keeps binary bytes intact", async () => {
const png = new Uint8Array([0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0xff]);
const { body } = fakeBody(png, "image/png");
expect(new Uint8Array(await body.arrayBuffer({ chunkSize: 3 }))).toEqual(png);
});
});
describe("decodeBase64Chunk", () => {
test("round-trips arbitrary bytes", () => {
const bytes = new Uint8Array([0, 1, 127, 128, 254, 255]);
const base64 = Buffer.from(bytes).toString("base64");
expect(decodeBase64Chunk(base64)).toEqual(bytes);
});
test("decodes an empty chunk", () => {
expect(decodeBase64Chunk("")).toEqual(new Uint8Array());
});
});
+20 -24
View File
@@ -1,4 +1,3 @@
import { readFileSync } from "node:fs";
import type {
CallTemplateFunctionArgs,
Context,
@@ -196,17 +195,8 @@ export const plugin: PluginDefinition = {
});
if (response == null) return null;
if (response.bodyPath == null) {
return null;
}
const BOM = "\ufeff";
let body: string;
try {
body = readFileSync(response.bodyPath, "utf-8").replace(BOM, "");
} catch {
return null;
}
const body = await readResponseBody(ctx, response);
if (body == null) return null;
try {
const result: JSONPathResult =
@@ -261,23 +251,29 @@ export const plugin: PluginDefinition = {
});
if (response == null) return null;
if (response.bodyPath == null) {
return null;
}
let body: string;
try {
body = readFileSync(response.bodyPath, "utf-8");
} catch {
return null;
}
return body;
return await readResponseBody(ctx, response);
},
},
],
};
/**
* The response's body as text, or null when there is nothing to read.
*
* The host is asked for it by response id, so this works wherever the bytes
* happen to live. A body over the runtime's size limit throws rather than
* coming back empty, since a template silently rendering to nothing is worse
* than one that says why.
*/
async function readResponseBody(ctx: Context, response: HttpResponse): Promise<string | null> {
if (!response.id) return null;
const body = await ctx.httpResponse.body({ responseId: response.id });
if (body.contentLength === 0) return null;
return await body.text();
}
async function getResponse(
ctx: Context,
{