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* add full WebSocket (RFC 6455) client/server support for zenhttp (#792)Stefan Boberg12 days12-107/+2480
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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]>
* HttpService/Frontend improvements (#782)Stefan Boberg2026-02-254-19/+101
| | | | | | | - zenhttp: added `GetServiceUri()`/`GetExternalHost()` - enables code to quickly generate an externally reachable URI for a given service - frontend: improved Uri handling (better defaults) - added support for 404 page (to make it easier to find a good URL)
* Various bug fixes (#778)Stefan Boberg2026-02-242-9/+12
| | | | | | | | | | | | | | | | | | | | | | zencore fixes: - filesystem.cpp: ReadFile error reporting logic - compactbinaryvalue.h: CbValue::As*String error reporting logic zenhttp fixes: - httpasio BindAcceptor would `return 0;` in a function returning `std::string` (UB) - httpsys async workpool initialization race zenstore fixes: - cas.cpp: GetFileCasResults Results param passed by value instead of reference (large chunk results were silently lost) - structuredcachestore.cpp: MissCount unconditionally incremented (counted hits as misses) - cacherpc.cpp: Wrong boolean in Incomplete response array (all entries marked incomplete) - cachedisklayer.cpp: sizeof(sizeof(...)) in two validation checks computed sizeof(size_t) instead of struct size - buildstore.cpp: Wrong hash tracked in GC key list (BlobHash pushed twice instead of MetadataHash) - buildstore.cpp: Removed duplicate m_LastAccessTimeUpdateCount increment in PutBlob zenserver fixes: - httpbuildstore.cpp: Reversed subtraction in HTTP range calculation (unsigned underflow) - hubservice.cpp: Deadlock in Provision() calling Wake() while holding m_Lock (extracted WakeLocked helper) - zipfs.cpp: Data race in GetFile() lazy initialization (added RwLock with shared/exclusive paths)
* GC - fix handling of attachment ranges, http access token expiration, lock ↵Stefan Boberg2026-02-201-3/+6
| | | | | | | | file retry logic (#766) * GC - fix handling of attachment ranges * fix trace/log strings * fix HTTP access token expiration time logic * added missing lock retry in zenserver startup
* add selective request logging support to http.sys (#762)Stefan Boberg2026-02-181-3/+22
| | | | | * implemented selective request logging for http.sys for consistency with asio * fixed traversal of GetLogicalProcessorInformationEx to account for variable-sized records * also adds CPU usage metrics
* add http server root password protection (#757)Dan Engelbrecht2026-02-177-14/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Feature: Added `--security-config-path` option to zenserver to configure security settings - Expects a path to a .json file - Default is an empty path resulting in no extra security settings and legacy behavior - Current support is a top level filter of incoming http requests restricted to the `password` type - `password` type will check the `Authorization` header and match it to the selected authorization strategy - Currently the security settings is very basic and configured to a fixed username+password at startup { "http" { "root": { "filter": { "type": "password", "config": { "password": { "username": "<username>", "password": "<password>" }, "protect-machine-local-requests": false, "unprotected-uris": [ "/health/", "/health/info", "/health/version" ] } } } } }
* misc fixes brought over from sb/proto (#759)Stefan Boberg2026-02-172-16/+21
| | | | | | | | * `RwLock::WithSharedLock` and `RwLock::WithExclusiveLock` can now return a value (which is returned by the passed function) * Comma-separated logger specification now correctly deals with commas * `GetSystemMetrics` properly accounts for cores * cpr response formatter passes arguments in the right order * `HttpServerRequest::SetLogRequest` can be used to selectively log HTTP requests
* add IHttpRequestFilter to allow server implementation to filter/reject ↵Dan Engelbrecht2026-02-137-83/+228
| | | | | requests (#753) * add IHttpRequestFilter to allow server implementation to filter/reject requests
* add IsLocalMachineRequest to HttpServerRequest (#749)Dan Engelbrecht2026-02-123-3/+52
| | | * add IsLocalMachineRequest to HttpServerRequest
* add simple http client tests (#751)Dan Engelbrecht2026-02-125-24/+35
| | | * add simple http client tests and fix run loop of http server to not rely on application quit
* only check file size for requested range in asio TransmitFileAsync in debug ↵Dan Engelbrecht2026-02-061-41/+63
| | | | | | mode (#745) * only check file size for requested range in asio TransmitFileAsync in debug mode * only do Transmit file for whole files
* Merge pull request #723 from ue-foundation/lm/service-interactive-sessionLiam Mitchell2026-02-044-40/+16
|\ | | | | Run Windows service as an interactive session, so we correctly respond to RequestApplicationExit when requested to stop by the service manager
| * Respond to RequestApplicationExit() in http server implementations even in ↵Liam Mitchell2026-01-294-40/+16
| | | | | | | | non-interactive sessions
* | implemented chunking for TransmitFile path (#736)Stefan Boberg2026-02-041-58/+119
| | | | | | | | | | * implemented chunking for TransmitFile path, to ensure payloads exceeding the TransmitFile API limit of 4GB can be handled * also fixes similar issue with memory path
* | hotfix 5.7.18 (#730)Dan Engelbrecht2026-01-221-3/+3
|/ | | | * make sure we properly convert command line args for zenserver as well * make sure we *add* wildcards/excludes in addition to defaults
* OTLP/trace improvements (#717)Stefan Boberg2026-01-191-4/+6
| | | | | | | This PR brings over some changes made to avoid performing setup for otel instrumentation if we are not sending otel information anywhere anyway. It also adds the ability to configure an OTLP endpoint on the command line using `--otlp-endpoint=<URI>`. Bear in mind that OTLP support is still not officially supported so this should not be used in production at this stage.
* asio/http optimizations (#449)Stefan Boberg2026-01-141-104/+638
| | | | | | | This change primarily introduces improved logic for dealing with sending data from file references. This is intended to reduce the amount of memory-mapping we end up doing when sending data from files. Windows now uses `TransmitFile` to send file data more efficiently using kernel-side I/O, but Linux/Mac basically behaves as before since they don't offer any true async file I/O support via asio. This should be implemented separately using a background I/O thread pool. This PR also includes improved memory management for http/asio with reduced allocation counts, and a fix for a potential use-after-free in very high load scenarios.
* Add base port getter and set the dll directory for plugin dependencies (#692)Tomasz Obrębski2025-12-191-2/+11
| | | | | | | * Add base port getter and set the dll directory for plugin dependencies * Use UTF8 for dll paths * Rename BasePort to m_BasePort for consistency
* remove error warning in output (#695)Dan Engelbrecht2025-12-172-9/+9
| | | * changed some logging string so they don't get caught in CI logging
* add otel instrumentation (#581)Stefan Boberg2025-12-113-7/+92
| | | | | | | | this change adds OTEL tracing to a few places * Top-level application lifecycle (config/init/cleanup, main loop) * http.sys requests it also brings some otlptrace optimizations and dynamic configuration of tracing. OTLP tracing is currently always disabled
* HTTP server API changes for improved extensibility (#684)Stefan Boberg2025-12-117-50/+50
| | | | * refactored `HttpServer` so all subclass member functions are proctected, to make it easier to extend base functionality * added API service, can be used to enumerate registered endpoints (at `/api`). Currently only very basic information is provided
* implement --dedicated option on asio http server (#679)Dan Engelbrecht2025-12-053-44/+98
| | | * implement --dedicated option on asio http server
* make asiohttp work without IPv6 (#562)Stefan Boberg2025-10-131-49/+225
| | | this change makes it possible to use zenserver on hosts where IPv6 has been disabled
* hide http.sys options when unavailable (#568)Stefan Boberg2025-10-131-4/+6
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* add ability to limit concurrency (#565)Stefan Boberg2025-10-102-2/+2
| | | | | | | | | | | | effective concurrency in zenserver can be limited via the `--corelimit=<N>` option on the command line. Any value passed in here will be used instead of the return value from `std::thread::hardware_concurrency()` if it is lower. * added --corelimit option to zenserver * made sure thread pools are configured lazily and not during global init * added log output indicating effective and HW concurrency * added change log entry * removed debug logging from ZenEntryPoint::Run() also removed main thread naming on Linux since it makes the output from `top` and similar tools confusing (it shows `main` instead of `zenserver`)
* revise exception vs error (#495)Dan Engelbrecht2025-09-153-10/+18
| | | | | - Change BadAlloc exceptions in GC to warnings - Add explict ASSERT exception catch in http plugin request processing - Make exceptions handled in http request processing to warnings
* add EMode to WorkerTheadPool to avoid thread starvation (#492)Dan Engelbrecht2025-09-101-1/+1
| | | - Improvement: Add a new mode to worker thread pools to avoid starvation of workers which could cause long stalls due to other work begin queued up. UE-305498
* asio large header support (#484)Dan Engelbrecht2025-09-042-123/+128
| | | - Improvement: Allow large headers support in asio server implementation
* clean up trace options parsing (#473)Dan Engelbrecht2025-08-224-0/+10
| | | | | * clean up trace command line options explicitly shut down worker pools * some additional startup trace scopes
* extend log on failed httpsys response (#394)Dan Engelbrecht2025-05-132-8/+22
| | | | | * extend log on failed httpsys response * fix formatting for "Desired port is in use, retrying" * add warning log if port is remapped
* close servers in multi server (#371)Dmytro Ivanov2025-04-241-0/+4
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* build list filters (#313)Dan Engelbrecht2025-03-191-2/+2
| | | | | - Feature: `zen builds list` command has new options - `--query-path` - path to a .json (json format) or .cbo (compact binary object format) with the search query to use - `--result-path` - path to a .json (json format) or .cbo (compact binary object format) to write output result to, if omitted json format will be output to console
* reduced memory churn using fixed_xxx containers (#236)Stefan Boberg2025-03-061-8/+10
| | | | | | * Added EASTL to help with eliminating memory allocations * Applied EASTL to eliminate memory allocations, primarily by using `fixed_vector` et al to use stack allocations / inline struct allocations Reduces memory events in traces by close to a factor of 10 in test scenario (starting editor for project F)
* move basicfile.h/cpp -> zencore (#273)Dan Engelbrecht2025-01-161-1/+1
| | | | | | move jupiter.h/cpp -> zenutil move packageformat.h/.cpp -> zenhttp zenutil now depends on zenhttp instead of the inverse
* Suppress progress report callback if oplog import detects zero op oplog (#271)Dan Engelbrecht2025-01-134-4/+8
| | | | * Suppress progress report callback if oplog import detects oplog with zero ops * output error code when catching system errors
* more memory tagging and fixes (#263)Stefan Boberg2024-12-162-4/+94
| | | This change adds more instrumentation for memory tracking, so that as little as possible comes through as Unknown in Insights analysis.
* Memory tracking improvements (#262)Stefan Boberg2024-12-111-0/+14
| | | | | * added LLM tag to properly tag RPC allocations * annotated some more httpsys functions with memory tags * only emit memory scope events if the active tag is different from the new tag
* Unity build fixes (#253)Stefan Boberg2024-12-051-8/+0
| | | some fixes to make everything build using unity build mode. Mostly moved code from anonymous namespaces into local impl namespace to avoid ambiguity in name resolution.
* added support for dynamic LLM tags (#245)Stefan Boberg2024-12-021-0/+19
| | | | | * added FLLMTag which can be used to register memory tags outside of core * changed `UE_MEMSCOPE` -> `ZEN_MEMSCOPE` for consistency * instrumented some subsystems with dynamic tags
* don't assert that we have moved bytes if source block is zero size (#97)Dan Engelbrecht2024-06-142-2/+2
| | | | * don't assert that we have moved bytes if source block is zero size * handle invalid session ids gracefully
* improved assert (#37)Dan Engelbrecht2024-04-044-20/+51
| | | | - Improvement: Add file and line to ASSERT exceptions - Improvement: Catch call stack when throwing assert exceptions and log/output call stack at important places to provide more context to caller
* HTTP request logging (#6)Stefan Boberg2024-03-144-31/+108
| | | this change adds support for tracing http payloads when using the asio path. This was already supported when using the `--http=plugin` path and this change moves some code into a shared class for reuse.
* http request parser safety (#664)Dan Engelbrecht2024-03-121-1/+7
| | | | * make sure we don't add more headers than we support * don't capture for loop variables by reference for async work
* fix zenserver state macos (#669)Dan Engelbrecht2024-03-101-5/+24
| | | | | | - Shared memory for zenserver state may hang around after all zenserver processes exit - make sure we find a valid entry in `zen up` before bailing - Httpasio add retry for desired port - Httpasio only call listen() once - Httpasio explicitly close acceptor sockets
* some asio HTTP server tweaks for correctness (#663)Stefan Boberg2024-03-051-9/+11
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* adding context to http.sys error messageStefan Boberg2024-02-201-5/+15
| | | | added some context to http.sys API call error reporting
* Add testcase and fix for ASIO ipv4 localhost support (#649)zousar2024-02-061-14/+59
| | | - Bugfix: Implement two listening sockets in ASIO (ipv4+ipv6) when either we start with `--http-forceloopback` or we resort to that mode because of a failure to bind to the "any" address
* separate RPC processing from HTTP processing (#626)Stefan Boberg2023-12-201-1/+1
| | | | | | * 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
* various TSAN/ASAN/LeakAnalyzer fixes (#622)Stefan Boberg2023-12-191-1/+3
| | | | | | | | | * fix JobQueue test threading issue. The inner job queued with `QueueJob` would reference `I` from inside the captured closure which would subsequently disappear * made sure application exit is thread safe * don't try to access string data out of bounds * keep-alive flag is accessed from multiple threads * fix memory leaks in Zen upstream client code * TSAN fixes for Event
* http plugin dependency fixes (#590)Stefan Boberg2023-12-051-3/+11
| | | these changes clean up module dependencies and allow the transports subtree to be built standalone (in the UE tree for instance)
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