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* This branch adds full WebSocket (RFC 6455) support to the HTTP server layer, covering both transport backends, a client, and tests.
- **`websocket.h`** -- Core interfaces: `WebSocketOpcode`, `WebSocketMessage`, `WebSocketConnection` (ref-counted), and `IWebSocketHandler`. Services opt in to WebSocket support by implementing `IWebSocketHandler` alongside their existing `HttpService`.
- **`httpwsclient.h`** -- `HttpWsClient`: an ASIO-backed `ws://` client with both standalone (own thread) and shared `io_context` modes. Supports connect timeout and optional auth token injection via `IWsClientHandler` callbacks.
- **`wsasio.cpp/h`** -- `WsAsioConnection`: WebSocket over ASIO TCP. Takes over the socket after the HTTP 101 handshake and runs an async read/write loop with a queued write path (guarded by `RwLock`).
- **`wshttpsys.cpp/h`** -- `WsHttpSysConnection`: WebSocket over http.sys opaque-mode connections (Windows only). Uses `HttpReceiveRequestEntityBody` / `HttpSendResponseEntityBody` via IOCP, sharing the same threadpool as normal http.sys traffic. Self-ref lifetime management ensures graceful drain of outstanding async ops.
- **`httpsys_iocontext.h`** -- Tagged `OVERLAPPED` wrapper (`HttpSysIoContext`) used to distinguish normal HTTP transactions from WebSocket read/write completions in the single IOCP callback.
- **`wsframecodec.cpp/h`** -- `WsFrameCodec`: static helpers for parsing (unmasked and masked) and building (unmasked server frames and masked client frames) RFC 6455 frames across all three payload length encodings (7-bit, 16-bit, 64-bit). Also computes `Sec-WebSocket-Accept` keys.
- **`clients/httpwsclient.cpp`** -- `HttpWsClient::Impl`: ASIO-based client that performs the HTTP upgrade handshake, then hands off to the frame codec for the read loop. Manages its own `io_context` thread or plugs into an external one.
- **`httpasio.cpp`** -- ASIO server now detects `Upgrade: websocket` requests, checks the matching `HttpService` for `IWebSocketHandler` via `dynamic_cast`, performs the RFC 6455 handshake (101 response), and spins up a `WsAsioConnection`.
- **`httpsys.cpp`** -- Same upgrade detection and handshake logic for the http.sys backend, using `WsHttpSysConnection` and `HTTP_SEND_RESPONSE_FLAG_OPAQUE`.
- **`httpparser.cpp/h`** -- Extended to surface the `Upgrade` / `Connection` / `Sec-WebSocket-Key` headers needed by the handshake.
- **`httpcommon.h`** -- Minor additions (probably new header constants or response codes for the WS upgrade).
- **`httpserver.h`** -- Small interface changes to support WebSocket registration.
- **`zenhttp.cpp` / `xmake.lua`** -- New source files wired in; build config updated.
- **Unit tests** (`websocket.framecodec`): round-trip encode/decode for text, binary, close frames; all three payload sizes; masked and unmasked variants; RFC 6455 `Sec-WebSocket-Accept` test vector.
- **Integration tests** (`websocket.integration`): full ASIO server tests covering handshake (101), normal HTTP coexistence, echo, server-push broadcast, client close handshake, ping/pong auto-response, sequential messages, and rejection of upgrades on non-WS services.
- **Client tests** (`websocket.client`): `HttpWsClient` connect+echo+close, connection failure (bad port -> close code 1006), and server-initiated close.
* changed HttpRequestParser::ParseCurrentHeader to use switch instead of if/else chain
* remove spurious printf
---------
Co-authored-by: Stefan Boberg <[email protected]>
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Add comprehensive `HttpClient` test suite. Covers:
- **HTTP verbs** -- GET, POST, PUT, DELETE, HEAD dispatch correctly
- **GET/POST/PUT/Upload/Download** -- payload round-trips (IoBuffer, CbObject, CompositeBuffer), content types, large payloads, file-spill downloads
- **Status codes** -- 2xx/4xx/5xx classification, exact code matching
- **Response API** -- IsSuccess, AsText, AsObject, ToText, ErrorMessage, ThrowError
- **Error handling** -- connection refused, request timeout, nonexistent endpoints
- **Session management** -- default ID, SetSessionId, reset to zero
- **Authentication** -- token provider, expired tokens, bearer verification
- **Content type detection** -- text, JSON, binary, CbObject
- **Request metadata** -- elapsed time, upload/download byte counts
- **Retry logic** -- retry after transient 503s, no-retry baseline
- **Latency measurement** -- MeasureLatency against live and unreachable servers
- **KeyValueMap** -- construction from pairs, string_views, initializer lists
- **Transport-level faults (GET)** -- connection reset/close before response, partial headers, truncated body, mid-body reset, stalled response timeout, retry after RST
- **Transport-level faults (POST)** -- server reset/close before consuming body, mid-body reset, early 503 without consuming upload, stalled upload timeout, retry with large body after transient failures
Also adds zenhttp-test to the xmake test runner (xmake test --run=http).
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move jupiter.h/cpp -> zenutil
move packageformat.h/.cpp -> zenhttp
zenutil now depends on zenhttp instead of the inverse
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* moved all RPC processing from HttpStructuredCacheService into separate CacheRpcHandler class in zenstore
* move package marshaling to zenutil. was previously in zenhttp/httpshared but it's useful in other contexts as well where we don't want to depend on zenhttp
* introduced UpstreamCacheClient, this provides a subset of functions on UpstreamCache and lives in zenstore
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* Made HttpHealthService use locks to serialize access to state
* Added ToString(HttpResponseCode HttpCode)
* Added support for JS source maps
* Moved IHttpStatsProvider/IHttpStatsService
* Enabled enumeration of stats providers
* Disabled build of HttpTestingService unless ZEN_WITH_TESTS is defined
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* moved source directories into `/src`
* updated bundle.lua for new `src` path
* moved some docs, icon
* removed old test trees
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