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Gorochu
2026-05-26 23:36:42 -07:00
parent ba051b2f74
commit 555ec72358
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##############################################################################
# #
# DO NOT EDIT THIS FILE! #
# #
##############################################################################
# This file is used by GN for building, which is NOT the build system used for
# building official binaries.
# Please modify the gyp files if you are making changes to build system.
import("unofficial.gni")
llhttp_gn_build("llhttp") {
}

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cmake_minimum_required(VERSION 3.25.0)
cmake_policy(SET CMP0069 NEW)
project(llhttp VERSION 9.3.0)
include(GNUInstallDirs)
set(CMAKE_C_STANDARD 99)
# By default build in relwithdebinfo type, supports both lowercase and uppercase
if(NOT CMAKE_CONFIGURATION_TYPES)
set(allowableBuildTypes DEBUG RELEASE RELWITHDEBINFO MINSIZEREL)
set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "${allowableBuildTypes}")
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE RELWITHDEBINFO CACHE STRING "" FORCE)
else()
string(TOUPPER ${CMAKE_BUILD_TYPE} CMAKE_BUILD_TYPE)
if(NOT CMAKE_BUILD_TYPE IN_LIST allowableBuildTypes)
message(FATAL_ERROR "Invalid build type: ${CMAKE_BUILD_TYPE}")
endif()
endif()
endif()
#
# Options
#
# Generic option
option(BUILD_SHARED_LIBS "Build shared libraries (.dll/.so)" ON)
option(BUILD_STATIC_LIBS "Build static libraries (.lib/.a)" OFF)
# Source code
set(LLHTTP_SOURCES
${CMAKE_CURRENT_SOURCE_DIR}/src/llhttp.c
${CMAKE_CURRENT_SOURCE_DIR}/src/http.c
${CMAKE_CURRENT_SOURCE_DIR}/src/api.c
)
set(LLHTTP_HEADERS
${CMAKE_CURRENT_SOURCE_DIR}/include/llhttp.h
)
configure_file(
${CMAKE_CURRENT_SOURCE_DIR}/libllhttp.pc.in
${CMAKE_CURRENT_SOURCE_DIR}/libllhttp.pc
@ONLY
)
function(config_library target)
target_sources(${target} PRIVATE ${LLHTTP_SOURCES} ${LLHTTP_HEADERS})
target_include_directories(${target} PUBLIC
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
)
set_target_properties(${target} PROPERTIES
OUTPUT_NAME llhttp
VERSION ${PROJECT_VERSION}
SOVERSION ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}
PUBLIC_HEADER ${LLHTTP_HEADERS}
)
install(TARGETS ${target}
EXPORT llhttp
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
)
install(FILES
${CMAKE_CURRENT_SOURCE_DIR}/libllhttp.pc
DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig
)
# This is required to work with FetchContent
install(EXPORT llhttp
FILE llhttp-config.cmake
NAMESPACE llhttp::
DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/llhttp
)
endfunction(config_library target)
if(BUILD_SHARED_LIBS)
add_library(llhttp_shared SHARED
${llhttp_src}
)
add_library(llhttp::llhttp ALIAS llhttp_shared)
config_library(llhttp_shared)
endif()
if(BUILD_STATIC_LIBS)
add_library(llhttp_static STATIC
${llhttp_src}
)
if(BUILD_SHARED_LIBS)
add_library(llhttp::llhttp ALIAS llhttp_shared)
else()
add_library(llhttp::llhttp ALIAS llhttp_static)
endif()
config_library(llhttp_static)
endif()
# On windows with Visual Studio, add a debug postfix so that release
# and debug libraries can coexist.
if(MSVC)
set(CMAKE_DEBUG_POSTFIX "d")
endif()
# Print project configure summary
message(STATUS "")
message(STATUS "")
message(STATUS "Project configure summary:")
message(STATUS "")
message(STATUS " CMake build type .................: ${CMAKE_BUILD_TYPE}")
message(STATUS " Install prefix ...................: ${CMAKE_INSTALL_PREFIX}")
message(STATUS " Build shared library .............: ${BUILD_SHARED_LIBS}")
message(STATUS " Build static library .............: ${BUILD_STATIC_LIBS}")
message(STATUS "")

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This software is licensed under the MIT License.
Copyright Fedor Indutny, 2018.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to permit
persons to whom the Software is furnished to do so, subject to the
following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
USE OR OTHER DEALINGS IN THE SOFTWARE.

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This software is licensed under the MIT License.
Copyright Fedor Indutny, 2018.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to permit
persons to whom the Software is furnished to do so, subject to the
following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
USE OR OTHER DEALINGS IN THE SOFTWARE.

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# llhttp
[![CI](https://github.com/nodejs/llhttp/workflows/CI/badge.svg)](https://github.com/nodejs/llhttp/actions?query=workflow%3ACI)
Port of [http_parser][0] to [llparse][1].
## Why?
Let's face it, [http_parser][0] is practically unmaintainable. Even
introduction of a single new method results in a significant code churn.
This project aims to:
* Make it maintainable
* Verifiable
* Improving benchmarks where possible
More details in [Fedor Indutny's talk at JSConf EU 2019](https://youtu.be/x3k_5Mi66sY)
## How?
Over time, different approaches for improving [http_parser][0]'s code base
were tried. However, all of them failed due to resulting significant performance
degradation.
This project is a port of [http_parser][0] to TypeScript. [llparse][1] is used
to generate the output C source file, which could be compiled and
linked with the embedder's program (like [Node.js][7]).
## Performance
So far llhttp outperforms http_parser:
| | input size | bandwidth | reqs/sec | time |
|:----------------|-----------:|-------------:|-----------:|--------:|
| **llhttp** | 8192.00 mb | 1777.24 mb/s | 3583799.39 req/sec | 4.61 s |
| **http_parser** | 8192.00 mb | 694.66 mb/s | 1406180.33 req/sec | 11.79 s |
llhttp is faster by approximately **156%**.
## Maintenance
llhttp project has about 1400 lines of TypeScript code describing the parser
itself and around 450 lines of C code and headers providing the helper methods.
The whole [http_parser][0] is implemented in approximately 2500 lines of C, and
436 lines of headers.
All optimizations and multi-character matching in llhttp are generated
automatically, and thus doesn't add any extra maintenance cost. On the contrary,
most of http_parser's code is hand-optimized and unrolled. Instead describing
"how" it should parse the HTTP requests/responses, a maintainer should
implement the new features in [http_parser][0] cautiously, considering
possible performance degradation and manually optimizing the new code.
## Verification
The state machine graph is encoded explicitly in llhttp. The [llparse][1]
automatically checks the graph for absence of loops and correct reporting of the
input ranges (spans) like header names and values. In the future, additional
checks could be performed to get even stricter verification of the llhttp.
## Usage
```C
#include "stdio.h"
#include "llhttp.h"
#include "string.h"
int handle_on_message_complete(llhttp_t* parser) {
fprintf(stdout, "Message completed!\n");
return 0;
}
int main() {
llhttp_t parser;
llhttp_settings_t settings;
/*Initialize user callbacks and settings */
llhttp_settings_init(&settings);
/*Set user callback */
settings.on_message_complete = handle_on_message_complete;
/*Initialize the parser in HTTP_BOTH mode, meaning that it will select between
*HTTP_REQUEST and HTTP_RESPONSE parsing automatically while reading the first
*input.
*/
llhttp_init(&parser, HTTP_BOTH, &settings);
/*Parse request! */
const char* request = "GET / HTTP/1.1\r\n\r\n";
int request_len = strlen(request);
enum llhttp_errno err = llhttp_execute(&parser, request, request_len);
if (err == HPE_OK) {
fprintf(stdout, "Successfully parsed!\n");
} else {
fprintf(stderr, "Parse error: %s %s\n", llhttp_errno_name(err), llhttp_get_error_reason(&parser));
}
}
```
For more information on API usage, please refer to [src/native/api.h](https://github.com/nodejs/llhttp/blob/main/src/native/api.h).
## API
### llhttp_settings_t
The settings object contains a list of callbacks that the parser will invoke.
The following callbacks can return `0` (proceed normally), `-1` (error) or `HPE_PAUSED` (pause the parser):
* `on_message_begin`: Invoked when a new request/response starts.
* `on_message_complete`: Invoked when a request/response has been completedly parsed.
* `on_url_complete`: Invoked after the URL has been parsed.
* `on_method_complete`: Invoked after the HTTP method has been parsed.
* `on_protocol_complete`: Invoked after the HTTP version has been parsed.
* `on_version_complete`: Invoked after the HTTP version has been parsed.
* `on_status_complete`: Invoked after the status code has been parsed.
* `on_header_field_complete`: Invoked after a header name has been parsed.
* `on_header_value_complete`: Invoked after a header value has been parsed.
* `on_chunk_header`: Invoked after a new chunk is started. The current chunk length is stored in `parser->content_length`.
* `on_chunk_extension_name_complete`: Invoked after a chunk extension name is started.
* `on_chunk_extension_value_complete`: Invoked after a chunk extension value is started.
* `on_chunk_complete`: Invoked after a new chunk is received.
* `on_reset`: Invoked after `on_message_complete` and before `on_message_begin` when a new message
is received on the same parser. This is not invoked for the first message of the parser.
The following callbacks can return `0` (proceed normally), `-1` (error) or `HPE_USER` (error from the callback):
* `on_url`: Invoked when another character of the URL is received.
* `on_status`: Invoked when another character of the status is received.
* `on_method`: Invoked when another character of the method is received.
When parser is created with `HTTP_BOTH` and the input is a response, this also invoked for the sequence `HTTP/`
of the first message.
* `on_protocol`: Invoked when another character of the protocol is received.
* `on_version`: Invoked when another character of the version is received.
* `on_header_field`: Invoked when another character of a header name is received.
* `on_header_value`: Invoked when another character of a header value is received.
* `on_chunk_extension_name`: Invoked when another character of a chunk extension name is received.
* `on_chunk_extension_value`: Invoked when another character of a extension value is received.
The callback `on_headers_complete`, invoked when headers are completed, can return:
* `0`: Proceed normally.
* `1`: Assume that request/response has no body, and proceed to parsing the next message.
* `2`: Assume absence of body (as above) and make `llhttp_execute()` return `HPE_PAUSED_UPGRADE`.
* `-1`: Error
* `HPE_PAUSED`: Pause the parser.
### `void llhttp_init(llhttp_t* parser, llhttp_type_t type, const llhttp_settings_t* settings)`
Initialize the parser with specific type and user settings.
### `uint8_t llhttp_get_type(llhttp_t* parser)`
Returns the type of the parser.
### `uint8_t llhttp_get_http_major(llhttp_t* parser)`
Returns the major version of the HTTP protocol of the current request/response.
### `uint8_t llhttp_get_http_minor(llhttp_t* parser)`
Returns the minor version of the HTTP protocol of the current request/response.
### `uint8_t llhttp_get_method(llhttp_t* parser)`
Returns the method of the current request.
### `int llhttp_get_status_code(llhttp_t* parser)`
Returns the method of the current response.
### `uint8_t llhttp_get_upgrade(llhttp_t* parser)`
Returns `1` if request includes the `Connection: upgrade` header.
### `void llhttp_reset(llhttp_t* parser)`
Reset an already initialized parser back to the start state, preserving the
existing parser type, callback settings, user data, and lenient flags.
### `void llhttp_settings_init(llhttp_settings_t* settings)`
Initialize the settings object.
### `llhttp_errno_t llhttp_execute(llhttp_t* parser, const char* data, size_t len)`
Parse full or partial request/response, invoking user callbacks along the way.
If any of `llhttp_data_cb` returns errno not equal to `HPE_OK` - the parsing interrupts,
and such errno is returned from `llhttp_execute()`. If `HPE_PAUSED` was used as a errno,
the execution can be resumed with `llhttp_resume()` call. In that case the input should be advanced
to the last processed byte from the parser, which can be obtained via `llhttp_get_error_pos()`.
In a special case of CONNECT/Upgrade request/response `HPE_PAUSED_UPGRADE` is returned
after fully parsing the request/response. If the user wishes to continue parsing,
they need to invoke `llhttp_resume_after_upgrade()`.
**if this function ever returns a non-pause type error, it will continue to return
the same error upon each successive call up until `llhttp_init()` is called.**
If this function returns `HPE_OK`, it means all the input has been consumed and parsed.
### `llhttp_errno_t llhttp_finish(llhttp_t* parser)`
This method should be called when the other side has no further bytes to
send (e.g. shutdown of readable side of the TCP connection.)
Requests without `Content-Length` and other messages might require treating
all incoming bytes as the part of the body, up to the last byte of the
connection.
This method will invoke `on_message_complete()` callback if the
request was terminated safely. Otherwise a error code would be returned.
### `int llhttp_message_needs_eof(const llhttp_t* parser)`
Returns `1` if the incoming message is parsed until the last byte, and has to be completed by calling `llhttp_finish()` on EOF.
### `int llhttp_should_keep_alive(const llhttp_t* parser)`
Returns `1` if there might be any other messages following the last that was
successfully parsed.
### `void llhttp_pause(llhttp_t* parser)`
Make further calls of `llhttp_execute()` return `HPE_PAUSED` and set
appropriate error reason.
**Do not call this from user callbacks! User callbacks must return
`HPE_PAUSED` if pausing is required.**
### `void llhttp_resume(llhttp_t* parser)`
Might be called to resume the execution after the pause in user's callback.
See `llhttp_execute()` above for details.
**Call this only if `llhttp_execute()` returns `HPE_PAUSED`.**
### `void llhttp_resume_after_upgrade(llhttp_t* parser)`
Might be called to resume the execution after the pause in user's callback.
See `llhttp_execute()` above for details.
**Call this only if `llhttp_execute()` returns `HPE_PAUSED_UPGRADE`**
### `llhttp_errno_t llhttp_get_errno(const llhttp_t* parser)`
Returns the latest error.
### `const char* llhttp_get_error_reason(const llhttp_t* parser)`
Returns the verbal explanation of the latest returned error.
**User callback should set error reason when returning the error. See
`llhttp_set_error_reason()` for details.**
### `void llhttp_set_error_reason(llhttp_t* parser, const char* reason)`
Assign verbal description to the returned error. Must be called in user
callbacks right before returning the errno.
**`HPE_USER` error code might be useful in user callbacks.**
### `const char* llhttp_get_error_pos(const llhttp_t* parser)`
Returns the pointer to the last parsed byte before the returned error. The
pointer is relative to the `data` argument of `llhttp_execute()`.
**This method might be useful for counting the number of parsed bytes.**
### `const char* llhttp_errno_name(llhttp_errno_t err)`
Returns textual name of error code.
### `const char* llhttp_method_name(llhttp_method_t method)`
Returns textual name of HTTP method.
### `const char* llhttp_status_name(llhttp_status_t status)`
Returns textual name of HTTP status.
### `void llhttp_set_lenient_headers(llhttp_t* parser, int enabled)`
Enables/disables lenient header value parsing (disabled by default).
Lenient parsing disables header value token checks, extending llhttp's
protocol support to highly non-compliant clients/server.
No `HPE_INVALID_HEADER_TOKEN` will be raised for incorrect header values when
lenient parsing is "on".
**Enabling this flag can pose a security issue since you will be exposed to request smuggling attacks. USE WITH CAUTION!**
### `void llhttp_set_lenient_chunked_length(llhttp_t* parser, int enabled)`
Enables/disables lenient handling of conflicting `Transfer-Encoding` and
`Content-Length` headers (disabled by default).
Normally `llhttp` would error when `Transfer-Encoding` is present in
conjunction with `Content-Length`.
This error is important to prevent HTTP request smuggling, but may be less desirable
for small number of cases involving legacy servers.
**Enabling this flag can pose a security issue since you will be exposed to request smuggling attacks. USE WITH CAUTION!**
### `void llhttp_set_lenient_keep_alive(llhttp_t* parser, int enabled)`
Enables/disables lenient handling of `Connection: close` and HTTP/1.0
requests responses.
Normally `llhttp` would error the HTTP request/response
after the request/response with `Connection: close` and `Content-Length`.
This is important to prevent cache poisoning attacks,
but might interact badly with outdated and insecure clients.
With this flag the extra request/response will be parsed normally.
**Enabling this flag can pose a security issue since you will be exposed to poisoning attacks. USE WITH CAUTION!**
### `void llhttp_set_lenient_transfer_encoding(llhttp_t* parser, int enabled)`
Enables/disables lenient handling of `Transfer-Encoding` header.
Normally `llhttp` would error when a `Transfer-Encoding` has `chunked` value
and another value after it (either in a single header or in multiple
headers whose value are internally joined using `, `).
This is mandated by the spec to reliably determine request body size and thus
avoid request smuggling.
With this flag the extra value will be parsed normally.
**Enabling this flag can pose a security issue since you will be exposed to request smuggling attacks. USE WITH CAUTION!**
### `void llhttp_set_lenient_version(llhttp_t* parser, int enabled)`
Enables/disables lenient handling of HTTP version.
Normally `llhttp` would error when the HTTP version in the request or status line
is not `0.9`, `1.0`, `1.1` or `2.0`.
With this flag the extra value will be parsed normally.
**Enabling this flag can pose a security issue since you will allow unsupported HTTP versions. USE WITH CAUTION!**
### `void llhttp_set_lenient_data_after_close(llhttp_t* parser, int enabled)`
Enables/disables lenient handling of additional data received after a message ends
and keep-alive is disabled.
Normally `llhttp` would error when additional unexpected data is received if the message
contains the `Connection` header with `close` value.
With this flag the extra data will discarded without throwing an error.
**Enabling this flag can pose a security issue since you will be exposed to poisoning attacks. USE WITH CAUTION!**
### `void llhttp_set_lenient_optional_lf_after_cr(llhttp_t* parser, int enabled)`
Enables/disables lenient handling of incomplete CRLF sequences.
Normally `llhttp` would error when a CR is not followed by LF when terminating the
request line, the status line, the headers or a chunk header.
With this flag only a CR is required to terminate such sections.
**Enabling this flag can pose a security issue since you will be exposed to request smuggling attacks. USE WITH CAUTION!**
### `void llhttp_set_lenient_optional_cr_before_lf(llhttp_t* parser, int enabled)`
Enables/disables lenient handling of line separators.
Normally `llhttp` would error when a LF is not preceded by CR when terminating the
request line, the status line, the headers, a chunk header or a chunk data.
With this flag only a LF is required to terminate such sections.
**Enabling this flag can pose a security issue since you will be exposed to request smuggling attacks. USE WITH CAUTION!**
### `void llhttp_set_lenient_optional_crlf_after_chunk(llhttp_t* parser, int enabled)`
Enables/disables lenient handling of chunks not separated via CRLF.
Normally `llhttp` would error when after a chunk data a CRLF is missing before
starting a new chunk.
With this flag the new chunk can start immediately after the previous one.
**Enabling this flag can pose a security issue since you will be exposed to request smuggling attacks. USE WITH CAUTION!**
### `void llhttp_set_lenient_spaces_after_chunk_size(llhttp_t* parser, int enabled)`
Enables/disables lenient handling of spaces after chunk size.
Normally `llhttp` would error when after a chunk size is followed by one or more spaces are present instead of a CRLF or `;`.
With this flag this check is disabled.
**Enabling this flag can pose a security issue since you will be exposed to request smuggling attacks. USE WITH CAUTION!**
## Build Instructions
Make sure you have [Node.js](https://nodejs.org/), npm and npx installed. Then under project directory run:
```sh
npm ci
make
```
---
### Bindings to other languages
* Lua: [MunifTanjim/llhttp.lua][11]
* Python: [pallas/pyllhttp][8]
* Ruby: [metabahn/llhttp][9]
* Rust: [JackLiar/rust-llhttp][10]
### Using with CMake
If you want to use this library in a CMake project as a shared library, you can use the snippet below.
```
FetchContent_Declare(llhttp
URL "https://github.com/nodejs/llhttp/archive/refs/tags/release/v8.1.0.tar.gz")
FetchContent_MakeAvailable(llhttp)
# Link with the llhttp_shared target
target_link_libraries(${EXAMPLE_PROJECT_NAME} ${PROJECT_LIBRARIES} llhttp_shared ${PROJECT_NAME})
```
If you want to use this library in a CMake project as a static library, you can set some cache variables first.
```
FetchContent_Declare(llhttp
URL "https://github.com/nodejs/llhttp/archive/refs/tags/release/v8.1.0.tar.gz")
set(BUILD_SHARED_LIBS OFF CACHE INTERNAL "")
set(BUILD_STATIC_LIBS ON CACHE INTERNAL "")
FetchContent_MakeAvailable(llhttp)
# Link with the llhttp_static target
target_link_libraries(${EXAMPLE_PROJECT_NAME} ${PROJECT_LIBRARIES} llhttp_static ${PROJECT_NAME})
```
_Note that using the git repo directly (e.g., via a git repo url and tag) will not work with FetchContent_Declare because [CMakeLists.txt](./CMakeLists.txt) requires string replacements (e.g., `_RELEASE_`) before it will build._
## Building on Windows
### Installation
* `choco install git`
* `choco install node`
* `choco install llvm` (or install the `C++ Clang tools for Windows` optional package from the Visual Studio 2019 installer)
* `choco install make` (or if you have MinGW, it comes bundled)
1. Ensure that `Clang` and `make` are in your system path.
2. Using Git Bash, clone the repo to your preferred location.
3. Cd into the cloned directory and run `npm ci`
5. Run `make`
6. Your `repo/build` directory should now have `libllhttp.a` and `libllhttp.so` static and dynamic libraries.
7. When building your executable, you can link to these libraries. Make sure to set the build folder as an include path when building so you can reference the declarations in `repo/build/llhttp.h`.
### A simple example on linking with the library:
Assuming you have an executable `main.cpp` in your current working directory, you would run: `clang++ -Os -g3 -Wall -Wextra -Wno-unused-parameter -I/path/to/llhttp/build main.cpp /path/to/llhttp/build/libllhttp.a -o main.exe`.
If you are getting `unresolved external symbol` linker errors you are likely attempting to build `llhttp.c` without linking it with object files from `api.c` and `http.c`.
#### LICENSE
This software is licensed under the MIT License.
Copyright Fedor Indutny, 2018.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to permit
persons to whom the Software is furnished to do so, subject to the
following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
USE OR OTHER DEALINGS IN THE SOFTWARE.
[0]: https://github.com/nodejs/http-parser
[1]: https://github.com/nodejs/llparse
[2]: https://en.wikipedia.org/wiki/Register_allocation#Spilling
[3]: https://en.wikipedia.org/wiki/Tail_call
[4]: https://llvm.org/docs/LangRef.html
[5]: https://llvm.org/docs/LangRef.html#call-instruction
[6]: https://clang.llvm.org/
[7]: https://github.com/nodejs/node
[8]: https://github.com/pallas/pyllhttp
[9]: https://github.com/metabahn/llhttp
[10]: https://github.com/JackLiar/rust-llhttp
[11]: https://github.com/MunifTanjim/llhttp.lua

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{
'target_defaults': {
'default_configuration': 'Debug',
'configurations': {
# TODO: hoist these out and put them somewhere common, because
# RuntimeLibrary MUST MATCH across the entire project
'Debug': {
'defines': [ 'DEBUG', '_DEBUG' ],
'cflags': [ '-Wall', '-Wextra', '-O0', '-g', '-ftrapv' ],
'msvs_settings': {
'VCCLCompilerTool': {
'RuntimeLibrary': 1, # static debug
},
},
},
'Release': {
'defines': [ 'NDEBUG' ],
'cflags': [ '-Wall', '-Wextra', '-O3' ],
'msvs_settings': {
'VCCLCompilerTool': {
'RuntimeLibrary': 0, # static release
},
},
}
},
'msvs_settings': {
'VCCLCompilerTool': {
# Compile as C++. llhttp.c is actually C99, but C++ is
# close enough in this case.
'CompileAs': 2,
},
'VCLibrarianTool': {
},
'VCLinkerTool': {
'GenerateDebugInformation': 'true',
},
},
'conditions': [
['OS == "win"', {
'defines': [
'WIN32'
],
}]
],
},
}

907
deps/llhttp/include/llhttp.h vendored Normal file
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@ -0,0 +1,907 @@
#ifndef INCLUDE_LLHTTP_H_
#define INCLUDE_LLHTTP_H_
#define LLHTTP_VERSION_MAJOR 9
#define LLHTTP_VERSION_MINOR 3
#define LLHTTP_VERSION_PATCH 0
#ifndef INCLUDE_LLHTTP_ITSELF_H_
#define INCLUDE_LLHTTP_ITSELF_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
typedef struct llhttp__internal_s llhttp__internal_t;
struct llhttp__internal_s {
int32_t _index;
void* _span_pos0;
void* _span_cb0;
int32_t error;
const char* reason;
const char* error_pos;
void* data;
void* _current;
uint64_t content_length;
uint8_t type;
uint8_t method;
uint8_t http_major;
uint8_t http_minor;
uint8_t header_state;
uint16_t lenient_flags;
uint8_t upgrade;
uint8_t finish;
uint16_t flags;
uint16_t status_code;
uint8_t initial_message_completed;
void* settings;
};
int llhttp__internal_init(llhttp__internal_t* s);
int llhttp__internal_execute(llhttp__internal_t* s, const char* p, const char* endp);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* INCLUDE_LLHTTP_ITSELF_H_ */
#ifndef LLLLHTTP_C_HEADERS_
#define LLLLHTTP_C_HEADERS_
#ifdef __cplusplus
extern "C" {
#endif
enum llhttp_errno {
HPE_OK = 0,
HPE_INTERNAL = 1,
HPE_STRICT = 2,
HPE_CR_EXPECTED = 25,
HPE_LF_EXPECTED = 3,
HPE_UNEXPECTED_CONTENT_LENGTH = 4,
HPE_UNEXPECTED_SPACE = 30,
HPE_CLOSED_CONNECTION = 5,
HPE_INVALID_METHOD = 6,
HPE_INVALID_URL = 7,
HPE_INVALID_CONSTANT = 8,
HPE_INVALID_VERSION = 9,
HPE_INVALID_HEADER_TOKEN = 10,
HPE_INVALID_CONTENT_LENGTH = 11,
HPE_INVALID_CHUNK_SIZE = 12,
HPE_INVALID_STATUS = 13,
HPE_INVALID_EOF_STATE = 14,
HPE_INVALID_TRANSFER_ENCODING = 15,
HPE_CB_MESSAGE_BEGIN = 16,
HPE_CB_HEADERS_COMPLETE = 17,
HPE_CB_MESSAGE_COMPLETE = 18,
HPE_CB_CHUNK_HEADER = 19,
HPE_CB_CHUNK_COMPLETE = 20,
HPE_PAUSED = 21,
HPE_PAUSED_UPGRADE = 22,
HPE_PAUSED_H2_UPGRADE = 23,
HPE_USER = 24,
HPE_CB_URL_COMPLETE = 26,
HPE_CB_STATUS_COMPLETE = 27,
HPE_CB_METHOD_COMPLETE = 32,
HPE_CB_VERSION_COMPLETE = 33,
HPE_CB_HEADER_FIELD_COMPLETE = 28,
HPE_CB_HEADER_VALUE_COMPLETE = 29,
HPE_CB_CHUNK_EXTENSION_NAME_COMPLETE = 34,
HPE_CB_CHUNK_EXTENSION_VALUE_COMPLETE = 35,
HPE_CB_RESET = 31,
HPE_CB_PROTOCOL_COMPLETE = 38
};
typedef enum llhttp_errno llhttp_errno_t;
enum llhttp_flags {
F_CONNECTION_KEEP_ALIVE = 0x1,
F_CONNECTION_CLOSE = 0x2,
F_CONNECTION_UPGRADE = 0x4,
F_CHUNKED = 0x8,
F_UPGRADE = 0x10,
F_CONTENT_LENGTH = 0x20,
F_SKIPBODY = 0x40,
F_TRAILING = 0x80,
F_TRANSFER_ENCODING = 0x200
};
typedef enum llhttp_flags llhttp_flags_t;
enum llhttp_lenient_flags {
LENIENT_HEADERS = 0x1,
LENIENT_CHUNKED_LENGTH = 0x2,
LENIENT_KEEP_ALIVE = 0x4,
LENIENT_TRANSFER_ENCODING = 0x8,
LENIENT_VERSION = 0x10,
LENIENT_DATA_AFTER_CLOSE = 0x20,
LENIENT_OPTIONAL_LF_AFTER_CR = 0x40,
LENIENT_OPTIONAL_CRLF_AFTER_CHUNK = 0x80,
LENIENT_OPTIONAL_CR_BEFORE_LF = 0x100,
LENIENT_SPACES_AFTER_CHUNK_SIZE = 0x200
};
typedef enum llhttp_lenient_flags llhttp_lenient_flags_t;
enum llhttp_type {
HTTP_BOTH = 0,
HTTP_REQUEST = 1,
HTTP_RESPONSE = 2
};
typedef enum llhttp_type llhttp_type_t;
enum llhttp_finish {
HTTP_FINISH_SAFE = 0,
HTTP_FINISH_SAFE_WITH_CB = 1,
HTTP_FINISH_UNSAFE = 2
};
typedef enum llhttp_finish llhttp_finish_t;
enum llhttp_method {
HTTP_DELETE = 0,
HTTP_GET = 1,
HTTP_HEAD = 2,
HTTP_POST = 3,
HTTP_PUT = 4,
HTTP_CONNECT = 5,
HTTP_OPTIONS = 6,
HTTP_TRACE = 7,
HTTP_COPY = 8,
HTTP_LOCK = 9,
HTTP_MKCOL = 10,
HTTP_MOVE = 11,
HTTP_PROPFIND = 12,
HTTP_PROPPATCH = 13,
HTTP_SEARCH = 14,
HTTP_UNLOCK = 15,
HTTP_BIND = 16,
HTTP_REBIND = 17,
HTTP_UNBIND = 18,
HTTP_ACL = 19,
HTTP_REPORT = 20,
HTTP_MKACTIVITY = 21,
HTTP_CHECKOUT = 22,
HTTP_MERGE = 23,
HTTP_MSEARCH = 24,
HTTP_NOTIFY = 25,
HTTP_SUBSCRIBE = 26,
HTTP_UNSUBSCRIBE = 27,
HTTP_PATCH = 28,
HTTP_PURGE = 29,
HTTP_MKCALENDAR = 30,
HTTP_LINK = 31,
HTTP_UNLINK = 32,
HTTP_SOURCE = 33,
HTTP_PRI = 34,
HTTP_DESCRIBE = 35,
HTTP_ANNOUNCE = 36,
HTTP_SETUP = 37,
HTTP_PLAY = 38,
HTTP_PAUSE = 39,
HTTP_TEARDOWN = 40,
HTTP_GET_PARAMETER = 41,
HTTP_SET_PARAMETER = 42,
HTTP_REDIRECT = 43,
HTTP_RECORD = 44,
HTTP_FLUSH = 45,
HTTP_QUERY = 46
};
typedef enum llhttp_method llhttp_method_t;
enum llhttp_status {
HTTP_STATUS_CONTINUE = 100,
HTTP_STATUS_SWITCHING_PROTOCOLS = 101,
HTTP_STATUS_PROCESSING = 102,
HTTP_STATUS_EARLY_HINTS = 103,
HTTP_STATUS_RESPONSE_IS_STALE = 110,
HTTP_STATUS_REVALIDATION_FAILED = 111,
HTTP_STATUS_DISCONNECTED_OPERATION = 112,
HTTP_STATUS_HEURISTIC_EXPIRATION = 113,
HTTP_STATUS_MISCELLANEOUS_WARNING = 199,
HTTP_STATUS_OK = 200,
HTTP_STATUS_CREATED = 201,
HTTP_STATUS_ACCEPTED = 202,
HTTP_STATUS_NON_AUTHORITATIVE_INFORMATION = 203,
HTTP_STATUS_NO_CONTENT = 204,
HTTP_STATUS_RESET_CONTENT = 205,
HTTP_STATUS_PARTIAL_CONTENT = 206,
HTTP_STATUS_MULTI_STATUS = 207,
HTTP_STATUS_ALREADY_REPORTED = 208,
HTTP_STATUS_TRANSFORMATION_APPLIED = 214,
HTTP_STATUS_IM_USED = 226,
HTTP_STATUS_MISCELLANEOUS_PERSISTENT_WARNING = 299,
HTTP_STATUS_MULTIPLE_CHOICES = 300,
HTTP_STATUS_MOVED_PERMANENTLY = 301,
HTTP_STATUS_FOUND = 302,
HTTP_STATUS_SEE_OTHER = 303,
HTTP_STATUS_NOT_MODIFIED = 304,
HTTP_STATUS_USE_PROXY = 305,
HTTP_STATUS_SWITCH_PROXY = 306,
HTTP_STATUS_TEMPORARY_REDIRECT = 307,
HTTP_STATUS_PERMANENT_REDIRECT = 308,
HTTP_STATUS_BAD_REQUEST = 400,
HTTP_STATUS_UNAUTHORIZED = 401,
HTTP_STATUS_PAYMENT_REQUIRED = 402,
HTTP_STATUS_FORBIDDEN = 403,
HTTP_STATUS_NOT_FOUND = 404,
HTTP_STATUS_METHOD_NOT_ALLOWED = 405,
HTTP_STATUS_NOT_ACCEPTABLE = 406,
HTTP_STATUS_PROXY_AUTHENTICATION_REQUIRED = 407,
HTTP_STATUS_REQUEST_TIMEOUT = 408,
HTTP_STATUS_CONFLICT = 409,
HTTP_STATUS_GONE = 410,
HTTP_STATUS_LENGTH_REQUIRED = 411,
HTTP_STATUS_PRECONDITION_FAILED = 412,
HTTP_STATUS_PAYLOAD_TOO_LARGE = 413,
HTTP_STATUS_URI_TOO_LONG = 414,
HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE = 415,
HTTP_STATUS_RANGE_NOT_SATISFIABLE = 416,
HTTP_STATUS_EXPECTATION_FAILED = 417,
HTTP_STATUS_IM_A_TEAPOT = 418,
HTTP_STATUS_PAGE_EXPIRED = 419,
HTTP_STATUS_ENHANCE_YOUR_CALM = 420,
HTTP_STATUS_MISDIRECTED_REQUEST = 421,
HTTP_STATUS_UNPROCESSABLE_ENTITY = 422,
HTTP_STATUS_LOCKED = 423,
HTTP_STATUS_FAILED_DEPENDENCY = 424,
HTTP_STATUS_TOO_EARLY = 425,
HTTP_STATUS_UPGRADE_REQUIRED = 426,
HTTP_STATUS_PRECONDITION_REQUIRED = 428,
HTTP_STATUS_TOO_MANY_REQUESTS = 429,
HTTP_STATUS_REQUEST_HEADER_FIELDS_TOO_LARGE_UNOFFICIAL = 430,
HTTP_STATUS_REQUEST_HEADER_FIELDS_TOO_LARGE = 431,
HTTP_STATUS_LOGIN_TIMEOUT = 440,
HTTP_STATUS_NO_RESPONSE = 444,
HTTP_STATUS_RETRY_WITH = 449,
HTTP_STATUS_BLOCKED_BY_PARENTAL_CONTROL = 450,
HTTP_STATUS_UNAVAILABLE_FOR_LEGAL_REASONS = 451,
HTTP_STATUS_CLIENT_CLOSED_LOAD_BALANCED_REQUEST = 460,
HTTP_STATUS_INVALID_X_FORWARDED_FOR = 463,
HTTP_STATUS_REQUEST_HEADER_TOO_LARGE = 494,
HTTP_STATUS_SSL_CERTIFICATE_ERROR = 495,
HTTP_STATUS_SSL_CERTIFICATE_REQUIRED = 496,
HTTP_STATUS_HTTP_REQUEST_SENT_TO_HTTPS_PORT = 497,
HTTP_STATUS_INVALID_TOKEN = 498,
HTTP_STATUS_CLIENT_CLOSED_REQUEST = 499,
HTTP_STATUS_INTERNAL_SERVER_ERROR = 500,
HTTP_STATUS_NOT_IMPLEMENTED = 501,
HTTP_STATUS_BAD_GATEWAY = 502,
HTTP_STATUS_SERVICE_UNAVAILABLE = 503,
HTTP_STATUS_GATEWAY_TIMEOUT = 504,
HTTP_STATUS_HTTP_VERSION_NOT_SUPPORTED = 505,
HTTP_STATUS_VARIANT_ALSO_NEGOTIATES = 506,
HTTP_STATUS_INSUFFICIENT_STORAGE = 507,
HTTP_STATUS_LOOP_DETECTED = 508,
HTTP_STATUS_BANDWIDTH_LIMIT_EXCEEDED = 509,
HTTP_STATUS_NOT_EXTENDED = 510,
HTTP_STATUS_NETWORK_AUTHENTICATION_REQUIRED = 511,
HTTP_STATUS_WEB_SERVER_UNKNOWN_ERROR = 520,
HTTP_STATUS_WEB_SERVER_IS_DOWN = 521,
HTTP_STATUS_CONNECTION_TIMEOUT = 522,
HTTP_STATUS_ORIGIN_IS_UNREACHABLE = 523,
HTTP_STATUS_TIMEOUT_OCCURED = 524,
HTTP_STATUS_SSL_HANDSHAKE_FAILED = 525,
HTTP_STATUS_INVALID_SSL_CERTIFICATE = 526,
HTTP_STATUS_RAILGUN_ERROR = 527,
HTTP_STATUS_SITE_IS_OVERLOADED = 529,
HTTP_STATUS_SITE_IS_FROZEN = 530,
HTTP_STATUS_IDENTITY_PROVIDER_AUTHENTICATION_ERROR = 561,
HTTP_STATUS_NETWORK_READ_TIMEOUT = 598,
HTTP_STATUS_NETWORK_CONNECT_TIMEOUT = 599
};
typedef enum llhttp_status llhttp_status_t;
#define HTTP_ERRNO_MAP(XX) \
XX(0, OK, OK) \
XX(1, INTERNAL, INTERNAL) \
XX(2, STRICT, STRICT) \
XX(25, CR_EXPECTED, CR_EXPECTED) \
XX(3, LF_EXPECTED, LF_EXPECTED) \
XX(4, UNEXPECTED_CONTENT_LENGTH, UNEXPECTED_CONTENT_LENGTH) \
XX(30, UNEXPECTED_SPACE, UNEXPECTED_SPACE) \
XX(5, CLOSED_CONNECTION, CLOSED_CONNECTION) \
XX(6, INVALID_METHOD, INVALID_METHOD) \
XX(7, INVALID_URL, INVALID_URL) \
XX(8, INVALID_CONSTANT, INVALID_CONSTANT) \
XX(9, INVALID_VERSION, INVALID_VERSION) \
XX(10, INVALID_HEADER_TOKEN, INVALID_HEADER_TOKEN) \
XX(11, INVALID_CONTENT_LENGTH, INVALID_CONTENT_LENGTH) \
XX(12, INVALID_CHUNK_SIZE, INVALID_CHUNK_SIZE) \
XX(13, INVALID_STATUS, INVALID_STATUS) \
XX(14, INVALID_EOF_STATE, INVALID_EOF_STATE) \
XX(15, INVALID_TRANSFER_ENCODING, INVALID_TRANSFER_ENCODING) \
XX(16, CB_MESSAGE_BEGIN, CB_MESSAGE_BEGIN) \
XX(17, CB_HEADERS_COMPLETE, CB_HEADERS_COMPLETE) \
XX(18, CB_MESSAGE_COMPLETE, CB_MESSAGE_COMPLETE) \
XX(19, CB_CHUNK_HEADER, CB_CHUNK_HEADER) \
XX(20, CB_CHUNK_COMPLETE, CB_CHUNK_COMPLETE) \
XX(21, PAUSED, PAUSED) \
XX(22, PAUSED_UPGRADE, PAUSED_UPGRADE) \
XX(23, PAUSED_H2_UPGRADE, PAUSED_H2_UPGRADE) \
XX(24, USER, USER) \
XX(26, CB_URL_COMPLETE, CB_URL_COMPLETE) \
XX(27, CB_STATUS_COMPLETE, CB_STATUS_COMPLETE) \
XX(32, CB_METHOD_COMPLETE, CB_METHOD_COMPLETE) \
XX(33, CB_VERSION_COMPLETE, CB_VERSION_COMPLETE) \
XX(28, CB_HEADER_FIELD_COMPLETE, CB_HEADER_FIELD_COMPLETE) \
XX(29, CB_HEADER_VALUE_COMPLETE, CB_HEADER_VALUE_COMPLETE) \
XX(34, CB_CHUNK_EXTENSION_NAME_COMPLETE, CB_CHUNK_EXTENSION_NAME_COMPLETE) \
XX(35, CB_CHUNK_EXTENSION_VALUE_COMPLETE, CB_CHUNK_EXTENSION_VALUE_COMPLETE) \
XX(31, CB_RESET, CB_RESET) \
XX(38, CB_PROTOCOL_COMPLETE, CB_PROTOCOL_COMPLETE) \
#define HTTP_METHOD_MAP(XX) \
XX(0, DELETE, DELETE) \
XX(1, GET, GET) \
XX(2, HEAD, HEAD) \
XX(3, POST, POST) \
XX(4, PUT, PUT) \
XX(5, CONNECT, CONNECT) \
XX(6, OPTIONS, OPTIONS) \
XX(7, TRACE, TRACE) \
XX(8, COPY, COPY) \
XX(9, LOCK, LOCK) \
XX(10, MKCOL, MKCOL) \
XX(11, MOVE, MOVE) \
XX(12, PROPFIND, PROPFIND) \
XX(13, PROPPATCH, PROPPATCH) \
XX(14, SEARCH, SEARCH) \
XX(15, UNLOCK, UNLOCK) \
XX(16, BIND, BIND) \
XX(17, REBIND, REBIND) \
XX(18, UNBIND, UNBIND) \
XX(19, ACL, ACL) \
XX(20, REPORT, REPORT) \
XX(21, MKACTIVITY, MKACTIVITY) \
XX(22, CHECKOUT, CHECKOUT) \
XX(23, MERGE, MERGE) \
XX(24, MSEARCH, M-SEARCH) \
XX(25, NOTIFY, NOTIFY) \
XX(26, SUBSCRIBE, SUBSCRIBE) \
XX(27, UNSUBSCRIBE, UNSUBSCRIBE) \
XX(28, PATCH, PATCH) \
XX(29, PURGE, PURGE) \
XX(30, MKCALENDAR, MKCALENDAR) \
XX(31, LINK, LINK) \
XX(32, UNLINK, UNLINK) \
XX(33, SOURCE, SOURCE) \
XX(46, QUERY, QUERY) \
#define RTSP_METHOD_MAP(XX) \
XX(1, GET, GET) \
XX(3, POST, POST) \
XX(6, OPTIONS, OPTIONS) \
XX(35, DESCRIBE, DESCRIBE) \
XX(36, ANNOUNCE, ANNOUNCE) \
XX(37, SETUP, SETUP) \
XX(38, PLAY, PLAY) \
XX(39, PAUSE, PAUSE) \
XX(40, TEARDOWN, TEARDOWN) \
XX(41, GET_PARAMETER, GET_PARAMETER) \
XX(42, SET_PARAMETER, SET_PARAMETER) \
XX(43, REDIRECT, REDIRECT) \
XX(44, RECORD, RECORD) \
XX(45, FLUSH, FLUSH) \
#define HTTP_ALL_METHOD_MAP(XX) \
XX(0, DELETE, DELETE) \
XX(1, GET, GET) \
XX(2, HEAD, HEAD) \
XX(3, POST, POST) \
XX(4, PUT, PUT) \
XX(5, CONNECT, CONNECT) \
XX(6, OPTIONS, OPTIONS) \
XX(7, TRACE, TRACE) \
XX(8, COPY, COPY) \
XX(9, LOCK, LOCK) \
XX(10, MKCOL, MKCOL) \
XX(11, MOVE, MOVE) \
XX(12, PROPFIND, PROPFIND) \
XX(13, PROPPATCH, PROPPATCH) \
XX(14, SEARCH, SEARCH) \
XX(15, UNLOCK, UNLOCK) \
XX(16, BIND, BIND) \
XX(17, REBIND, REBIND) \
XX(18, UNBIND, UNBIND) \
XX(19, ACL, ACL) \
XX(20, REPORT, REPORT) \
XX(21, MKACTIVITY, MKACTIVITY) \
XX(22, CHECKOUT, CHECKOUT) \
XX(23, MERGE, MERGE) \
XX(24, MSEARCH, M-SEARCH) \
XX(25, NOTIFY, NOTIFY) \
XX(26, SUBSCRIBE, SUBSCRIBE) \
XX(27, UNSUBSCRIBE, UNSUBSCRIBE) \
XX(28, PATCH, PATCH) \
XX(29, PURGE, PURGE) \
XX(30, MKCALENDAR, MKCALENDAR) \
XX(31, LINK, LINK) \
XX(32, UNLINK, UNLINK) \
XX(33, SOURCE, SOURCE) \
XX(34, PRI, PRI) \
XX(35, DESCRIBE, DESCRIBE) \
XX(36, ANNOUNCE, ANNOUNCE) \
XX(37, SETUP, SETUP) \
XX(38, PLAY, PLAY) \
XX(39, PAUSE, PAUSE) \
XX(40, TEARDOWN, TEARDOWN) \
XX(41, GET_PARAMETER, GET_PARAMETER) \
XX(42, SET_PARAMETER, SET_PARAMETER) \
XX(43, REDIRECT, REDIRECT) \
XX(44, RECORD, RECORD) \
XX(45, FLUSH, FLUSH) \
XX(46, QUERY, QUERY) \
#define HTTP_STATUS_MAP(XX) \
XX(100, CONTINUE, CONTINUE) \
XX(101, SWITCHING_PROTOCOLS, SWITCHING_PROTOCOLS) \
XX(102, PROCESSING, PROCESSING) \
XX(103, EARLY_HINTS, EARLY_HINTS) \
XX(110, RESPONSE_IS_STALE, RESPONSE_IS_STALE) \
XX(111, REVALIDATION_FAILED, REVALIDATION_FAILED) \
XX(112, DISCONNECTED_OPERATION, DISCONNECTED_OPERATION) \
XX(113, HEURISTIC_EXPIRATION, HEURISTIC_EXPIRATION) \
XX(199, MISCELLANEOUS_WARNING, MISCELLANEOUS_WARNING) \
XX(200, OK, OK) \
XX(201, CREATED, CREATED) \
XX(202, ACCEPTED, ACCEPTED) \
XX(203, NON_AUTHORITATIVE_INFORMATION, NON_AUTHORITATIVE_INFORMATION) \
XX(204, NO_CONTENT, NO_CONTENT) \
XX(205, RESET_CONTENT, RESET_CONTENT) \
XX(206, PARTIAL_CONTENT, PARTIAL_CONTENT) \
XX(207, MULTI_STATUS, MULTI_STATUS) \
XX(208, ALREADY_REPORTED, ALREADY_REPORTED) \
XX(214, TRANSFORMATION_APPLIED, TRANSFORMATION_APPLIED) \
XX(226, IM_USED, IM_USED) \
XX(299, MISCELLANEOUS_PERSISTENT_WARNING, MISCELLANEOUS_PERSISTENT_WARNING) \
XX(300, MULTIPLE_CHOICES, MULTIPLE_CHOICES) \
XX(301, MOVED_PERMANENTLY, MOVED_PERMANENTLY) \
XX(302, FOUND, FOUND) \
XX(303, SEE_OTHER, SEE_OTHER) \
XX(304, NOT_MODIFIED, NOT_MODIFIED) \
XX(305, USE_PROXY, USE_PROXY) \
XX(306, SWITCH_PROXY, SWITCH_PROXY) \
XX(307, TEMPORARY_REDIRECT, TEMPORARY_REDIRECT) \
XX(308, PERMANENT_REDIRECT, PERMANENT_REDIRECT) \
XX(400, BAD_REQUEST, BAD_REQUEST) \
XX(401, UNAUTHORIZED, UNAUTHORIZED) \
XX(402, PAYMENT_REQUIRED, PAYMENT_REQUIRED) \
XX(403, FORBIDDEN, FORBIDDEN) \
XX(404, NOT_FOUND, NOT_FOUND) \
XX(405, METHOD_NOT_ALLOWED, METHOD_NOT_ALLOWED) \
XX(406, NOT_ACCEPTABLE, NOT_ACCEPTABLE) \
XX(407, PROXY_AUTHENTICATION_REQUIRED, PROXY_AUTHENTICATION_REQUIRED) \
XX(408, REQUEST_TIMEOUT, REQUEST_TIMEOUT) \
XX(409, CONFLICT, CONFLICT) \
XX(410, GONE, GONE) \
XX(411, LENGTH_REQUIRED, LENGTH_REQUIRED) \
XX(412, PRECONDITION_FAILED, PRECONDITION_FAILED) \
XX(413, PAYLOAD_TOO_LARGE, PAYLOAD_TOO_LARGE) \
XX(414, URI_TOO_LONG, URI_TOO_LONG) \
XX(415, UNSUPPORTED_MEDIA_TYPE, UNSUPPORTED_MEDIA_TYPE) \
XX(416, RANGE_NOT_SATISFIABLE, RANGE_NOT_SATISFIABLE) \
XX(417, EXPECTATION_FAILED, EXPECTATION_FAILED) \
XX(418, IM_A_TEAPOT, IM_A_TEAPOT) \
XX(419, PAGE_EXPIRED, PAGE_EXPIRED) \
XX(420, ENHANCE_YOUR_CALM, ENHANCE_YOUR_CALM) \
XX(421, MISDIRECTED_REQUEST, MISDIRECTED_REQUEST) \
XX(422, UNPROCESSABLE_ENTITY, UNPROCESSABLE_ENTITY) \
XX(423, LOCKED, LOCKED) \
XX(424, FAILED_DEPENDENCY, FAILED_DEPENDENCY) \
XX(425, TOO_EARLY, TOO_EARLY) \
XX(426, UPGRADE_REQUIRED, UPGRADE_REQUIRED) \
XX(428, PRECONDITION_REQUIRED, PRECONDITION_REQUIRED) \
XX(429, TOO_MANY_REQUESTS, TOO_MANY_REQUESTS) \
XX(430, REQUEST_HEADER_FIELDS_TOO_LARGE_UNOFFICIAL, REQUEST_HEADER_FIELDS_TOO_LARGE_UNOFFICIAL) \
XX(431, REQUEST_HEADER_FIELDS_TOO_LARGE, REQUEST_HEADER_FIELDS_TOO_LARGE) \
XX(440, LOGIN_TIMEOUT, LOGIN_TIMEOUT) \
XX(444, NO_RESPONSE, NO_RESPONSE) \
XX(449, RETRY_WITH, RETRY_WITH) \
XX(450, BLOCKED_BY_PARENTAL_CONTROL, BLOCKED_BY_PARENTAL_CONTROL) \
XX(451, UNAVAILABLE_FOR_LEGAL_REASONS, UNAVAILABLE_FOR_LEGAL_REASONS) \
XX(460, CLIENT_CLOSED_LOAD_BALANCED_REQUEST, CLIENT_CLOSED_LOAD_BALANCED_REQUEST) \
XX(463, INVALID_X_FORWARDED_FOR, INVALID_X_FORWARDED_FOR) \
XX(494, REQUEST_HEADER_TOO_LARGE, REQUEST_HEADER_TOO_LARGE) \
XX(495, SSL_CERTIFICATE_ERROR, SSL_CERTIFICATE_ERROR) \
XX(496, SSL_CERTIFICATE_REQUIRED, SSL_CERTIFICATE_REQUIRED) \
XX(497, HTTP_REQUEST_SENT_TO_HTTPS_PORT, HTTP_REQUEST_SENT_TO_HTTPS_PORT) \
XX(498, INVALID_TOKEN, INVALID_TOKEN) \
XX(499, CLIENT_CLOSED_REQUEST, CLIENT_CLOSED_REQUEST) \
XX(500, INTERNAL_SERVER_ERROR, INTERNAL_SERVER_ERROR) \
XX(501, NOT_IMPLEMENTED, NOT_IMPLEMENTED) \
XX(502, BAD_GATEWAY, BAD_GATEWAY) \
XX(503, SERVICE_UNAVAILABLE, SERVICE_UNAVAILABLE) \
XX(504, GATEWAY_TIMEOUT, GATEWAY_TIMEOUT) \
XX(505, HTTP_VERSION_NOT_SUPPORTED, HTTP_VERSION_NOT_SUPPORTED) \
XX(506, VARIANT_ALSO_NEGOTIATES, VARIANT_ALSO_NEGOTIATES) \
XX(507, INSUFFICIENT_STORAGE, INSUFFICIENT_STORAGE) \
XX(508, LOOP_DETECTED, LOOP_DETECTED) \
XX(509, BANDWIDTH_LIMIT_EXCEEDED, BANDWIDTH_LIMIT_EXCEEDED) \
XX(510, NOT_EXTENDED, NOT_EXTENDED) \
XX(511, NETWORK_AUTHENTICATION_REQUIRED, NETWORK_AUTHENTICATION_REQUIRED) \
XX(520, WEB_SERVER_UNKNOWN_ERROR, WEB_SERVER_UNKNOWN_ERROR) \
XX(521, WEB_SERVER_IS_DOWN, WEB_SERVER_IS_DOWN) \
XX(522, CONNECTION_TIMEOUT, CONNECTION_TIMEOUT) \
XX(523, ORIGIN_IS_UNREACHABLE, ORIGIN_IS_UNREACHABLE) \
XX(524, TIMEOUT_OCCURED, TIMEOUT_OCCURED) \
XX(525, SSL_HANDSHAKE_FAILED, SSL_HANDSHAKE_FAILED) \
XX(526, INVALID_SSL_CERTIFICATE, INVALID_SSL_CERTIFICATE) \
XX(527, RAILGUN_ERROR, RAILGUN_ERROR) \
XX(529, SITE_IS_OVERLOADED, SITE_IS_OVERLOADED) \
XX(530, SITE_IS_FROZEN, SITE_IS_FROZEN) \
XX(561, IDENTITY_PROVIDER_AUTHENTICATION_ERROR, IDENTITY_PROVIDER_AUTHENTICATION_ERROR) \
XX(598, NETWORK_READ_TIMEOUT, NETWORK_READ_TIMEOUT) \
XX(599, NETWORK_CONNECT_TIMEOUT, NETWORK_CONNECT_TIMEOUT) \
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* LLLLHTTP_C_HEADERS_ */
#ifndef INCLUDE_LLHTTP_API_H_
#define INCLUDE_LLHTTP_API_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <stddef.h>
#if defined(__wasm__)
#define LLHTTP_EXPORT __attribute__((visibility("default")))
#elif defined(_WIN32)
#define LLHTTP_EXPORT __declspec(dllexport)
#else
#define LLHTTP_EXPORT
#endif
typedef llhttp__internal_t llhttp_t;
typedef struct llhttp_settings_s llhttp_settings_t;
typedef int (*llhttp_data_cb)(llhttp_t*, const char *at, size_t length);
typedef int (*llhttp_cb)(llhttp_t*);
struct llhttp_settings_s {
/* Possible return values 0, -1, `HPE_PAUSED` */
llhttp_cb on_message_begin;
/* Possible return values 0, -1, HPE_USER */
llhttp_data_cb on_protocol;
llhttp_data_cb on_url;
llhttp_data_cb on_status;
llhttp_data_cb on_method;
llhttp_data_cb on_version;
llhttp_data_cb on_header_field;
llhttp_data_cb on_header_value;
llhttp_data_cb on_chunk_extension_name;
llhttp_data_cb on_chunk_extension_value;
/* Possible return values:
* 0 - Proceed normally
* 1 - Assume that request/response has no body, and proceed to parsing the
* next message
* 2 - Assume absence of body (as above) and make `llhttp_execute()` return
* `HPE_PAUSED_UPGRADE`
* -1 - Error
* `HPE_PAUSED`
*/
llhttp_cb on_headers_complete;
/* Possible return values 0, -1, HPE_USER */
llhttp_data_cb on_body;
/* Possible return values 0, -1, `HPE_PAUSED` */
llhttp_cb on_message_complete;
llhttp_cb on_protocol_complete;
llhttp_cb on_url_complete;
llhttp_cb on_status_complete;
llhttp_cb on_method_complete;
llhttp_cb on_version_complete;
llhttp_cb on_header_field_complete;
llhttp_cb on_header_value_complete;
llhttp_cb on_chunk_extension_name_complete;
llhttp_cb on_chunk_extension_value_complete;
/* When on_chunk_header is called, the current chunk length is stored
* in parser->content_length.
* Possible return values 0, -1, `HPE_PAUSED`
*/
llhttp_cb on_chunk_header;
llhttp_cb on_chunk_complete;
llhttp_cb on_reset;
};
/* Initialize the parser with specific type and user settings.
*
* NOTE: lifetime of `settings` has to be at least the same as the lifetime of
* the `parser` here. In practice, `settings` has to be either a static
* variable or be allocated with `malloc`, `new`, etc.
*/
LLHTTP_EXPORT
void llhttp_init(llhttp_t* parser, llhttp_type_t type,
const llhttp_settings_t* settings);
LLHTTP_EXPORT
llhttp_t* llhttp_alloc(llhttp_type_t type);
LLHTTP_EXPORT
void llhttp_free(llhttp_t* parser);
LLHTTP_EXPORT
uint8_t llhttp_get_type(llhttp_t* parser);
LLHTTP_EXPORT
uint8_t llhttp_get_http_major(llhttp_t* parser);
LLHTTP_EXPORT
uint8_t llhttp_get_http_minor(llhttp_t* parser);
LLHTTP_EXPORT
uint8_t llhttp_get_method(llhttp_t* parser);
LLHTTP_EXPORT
int llhttp_get_status_code(llhttp_t* parser);
LLHTTP_EXPORT
uint8_t llhttp_get_upgrade(llhttp_t* parser);
/* Reset an already initialized parser back to the start state, preserving the
* existing parser type, callback settings, user data, and lenient flags.
*/
LLHTTP_EXPORT
void llhttp_reset(llhttp_t* parser);
/* Initialize the settings object */
LLHTTP_EXPORT
void llhttp_settings_init(llhttp_settings_t* settings);
/* Parse full or partial request/response, invoking user callbacks along the
* way.
*
* If any of `llhttp_data_cb` returns errno not equal to `HPE_OK` - the parsing
* interrupts, and such errno is returned from `llhttp_execute()`. If
* `HPE_PAUSED` was used as a errno, the execution can be resumed with
* `llhttp_resume()` call.
*
* In a special case of CONNECT/Upgrade request/response `HPE_PAUSED_UPGRADE`
* is returned after fully parsing the request/response. If the user wishes to
* continue parsing, they need to invoke `llhttp_resume_after_upgrade()`.
*
* NOTE: if this function ever returns a non-pause type error, it will continue
* to return the same error upon each successive call up until `llhttp_init()`
* is called.
*/
LLHTTP_EXPORT
llhttp_errno_t llhttp_execute(llhttp_t* parser, const char* data, size_t len);
/* This method should be called when the other side has no further bytes to
* send (e.g. shutdown of readable side of the TCP connection.)
*
* Requests without `Content-Length` and other messages might require treating
* all incoming bytes as the part of the body, up to the last byte of the
* connection. This method will invoke `on_message_complete()` callback if the
* request was terminated safely. Otherwise a error code would be returned.
*/
LLHTTP_EXPORT
llhttp_errno_t llhttp_finish(llhttp_t* parser);
/* Returns `1` if the incoming message is parsed until the last byte, and has
* to be completed by calling `llhttp_finish()` on EOF
*/
LLHTTP_EXPORT
int llhttp_message_needs_eof(const llhttp_t* parser);
/* Returns `1` if there might be any other messages following the last that was
* successfully parsed.
*/
LLHTTP_EXPORT
int llhttp_should_keep_alive(const llhttp_t* parser);
/* Make further calls of `llhttp_execute()` return `HPE_PAUSED` and set
* appropriate error reason.
*
* Important: do not call this from user callbacks! User callbacks must return
* `HPE_PAUSED` if pausing is required.
*/
LLHTTP_EXPORT
void llhttp_pause(llhttp_t* parser);
/* Might be called to resume the execution after the pause in user's callback.
* See `llhttp_execute()` above for details.
*
* Call this only if `llhttp_execute()` returns `HPE_PAUSED`.
*/
LLHTTP_EXPORT
void llhttp_resume(llhttp_t* parser);
/* Might be called to resume the execution after the pause in user's callback.
* See `llhttp_execute()` above for details.
*
* Call this only if `llhttp_execute()` returns `HPE_PAUSED_UPGRADE`
*/
LLHTTP_EXPORT
void llhttp_resume_after_upgrade(llhttp_t* parser);
/* Returns the latest return error */
LLHTTP_EXPORT
llhttp_errno_t llhttp_get_errno(const llhttp_t* parser);
/* Returns the verbal explanation of the latest returned error.
*
* Note: User callback should set error reason when returning the error. See
* `llhttp_set_error_reason()` for details.
*/
LLHTTP_EXPORT
const char* llhttp_get_error_reason(const llhttp_t* parser);
/* Assign verbal description to the returned error. Must be called in user
* callbacks right before returning the errno.
*
* Note: `HPE_USER` error code might be useful in user callbacks.
*/
LLHTTP_EXPORT
void llhttp_set_error_reason(llhttp_t* parser, const char* reason);
/* Returns the pointer to the last parsed byte before the returned error. The
* pointer is relative to the `data` argument of `llhttp_execute()`.
*
* Note: this method might be useful for counting the number of parsed bytes.
*/
LLHTTP_EXPORT
const char* llhttp_get_error_pos(const llhttp_t* parser);
/* Returns textual name of error code */
LLHTTP_EXPORT
const char* llhttp_errno_name(llhttp_errno_t err);
/* Returns textual name of HTTP method */
LLHTTP_EXPORT
const char* llhttp_method_name(llhttp_method_t method);
/* Returns textual name of HTTP status */
LLHTTP_EXPORT
const char* llhttp_status_name(llhttp_status_t status);
/* Enables/disables lenient header value parsing (disabled by default).
*
* Lenient parsing disables header value token checks, extending llhttp's
* protocol support to highly non-compliant clients/server. No
* `HPE_INVALID_HEADER_TOKEN` will be raised for incorrect header values when
* lenient parsing is "on".
*
* **Enabling this flag can pose a security issue since you will be exposed to
* request smuggling attacks. USE WITH CAUTION!**
*/
LLHTTP_EXPORT
void llhttp_set_lenient_headers(llhttp_t* parser, int enabled);
/* Enables/disables lenient handling of conflicting `Transfer-Encoding` and
* `Content-Length` headers (disabled by default).
*
* Normally `llhttp` would error when `Transfer-Encoding` is present in
* conjunction with `Content-Length`. This error is important to prevent HTTP
* request smuggling, but may be less desirable for small number of cases
* involving legacy servers.
*
* **Enabling this flag can pose a security issue since you will be exposed to
* request smuggling attacks. USE WITH CAUTION!**
*/
LLHTTP_EXPORT
void llhttp_set_lenient_chunked_length(llhttp_t* parser, int enabled);
/* Enables/disables lenient handling of `Connection: close` and HTTP/1.0
* requests responses.
*
* Normally `llhttp` would error on (in strict mode) or discard (in loose mode)
* the HTTP request/response after the request/response with `Connection: close`
* and `Content-Length`. This is important to prevent cache poisoning attacks,
* but might interact badly with outdated and insecure clients. With this flag
* the extra request/response will be parsed normally.
*
* **Enabling this flag can pose a security issue since you will be exposed to
* poisoning attacks. USE WITH CAUTION!**
*/
LLHTTP_EXPORT
void llhttp_set_lenient_keep_alive(llhttp_t* parser, int enabled);
/* Enables/disables lenient handling of `Transfer-Encoding` header.
*
* Normally `llhttp` would error when a `Transfer-Encoding` has `chunked` value
* and another value after it (either in a single header or in multiple
* headers whose value are internally joined using `, `).
* This is mandated by the spec to reliably determine request body size and thus
* avoid request smuggling.
* With this flag the extra value will be parsed normally.
*
* **Enabling this flag can pose a security issue since you will be exposed to
* request smuggling attacks. USE WITH CAUTION!**
*/
LLHTTP_EXPORT
void llhttp_set_lenient_transfer_encoding(llhttp_t* parser, int enabled);
/* Enables/disables lenient handling of HTTP version.
*
* Normally `llhttp` would error when the HTTP version in the request or status line
* is not `0.9`, `1.0`, `1.1` or `2.0`.
* With this flag the invalid value will be parsed normally.
*
* **Enabling this flag can pose a security issue since you will allow unsupported
* HTTP versions. USE WITH CAUTION!**
*/
LLHTTP_EXPORT
void llhttp_set_lenient_version(llhttp_t* parser, int enabled);
/* Enables/disables lenient handling of additional data received after a message ends
* and keep-alive is disabled.
*
* Normally `llhttp` would error when additional unexpected data is received if the message
* contains the `Connection` header with `close` value.
* With this flag the extra data will discarded without throwing an error.
*
* **Enabling this flag can pose a security issue since you will be exposed to
* poisoning attacks. USE WITH CAUTION!**
*/
LLHTTP_EXPORT
void llhttp_set_lenient_data_after_close(llhttp_t* parser, int enabled);
/* Enables/disables lenient handling of incomplete CRLF sequences.
*
* Normally `llhttp` would error when a CR is not followed by LF when terminating the
* request line, the status line, the headers or a chunk header.
* With this flag only a CR is required to terminate such sections.
*
* **Enabling this flag can pose a security issue since you will be exposed to
* request smuggling attacks. USE WITH CAUTION!**
*/
LLHTTP_EXPORT
void llhttp_set_lenient_optional_lf_after_cr(llhttp_t* parser, int enabled);
/*
* Enables/disables lenient handling of line separators.
*
* Normally `llhttp` would error when a LF is not preceded by CR when terminating the
* request line, the status line, the headers, a chunk header or a chunk data.
* With this flag only a LF is required to terminate such sections.
*
* **Enabling this flag can pose a security issue since you will be exposed to
* request smuggling attacks. USE WITH CAUTION!**
*/
LLHTTP_EXPORT
void llhttp_set_lenient_optional_cr_before_lf(llhttp_t* parser, int enabled);
/* Enables/disables lenient handling of chunks not separated via CRLF.
*
* Normally `llhttp` would error when after a chunk data a CRLF is missing before
* starting a new chunk.
* With this flag the new chunk can start immediately after the previous one.
*
* **Enabling this flag can pose a security issue since you will be exposed to
* request smuggling attacks. USE WITH CAUTION!**
*/
LLHTTP_EXPORT
void llhttp_set_lenient_optional_crlf_after_chunk(llhttp_t* parser, int enabled);
/* Enables/disables lenient handling of spaces after chunk size.
*
* Normally `llhttp` would error when after a chunk size is followed by one or more
* spaces are present instead of a CRLF or `;`.
* With this flag this check is disabled.
*
* **Enabling this flag can pose a security issue since you will be exposed to
* request smuggling attacks. USE WITH CAUTION!**
*/
LLHTTP_EXPORT
void llhttp_set_lenient_spaces_after_chunk_size(llhttp_t* parser, int enabled);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* INCLUDE_LLHTTP_API_H_ */
#endif /* INCLUDE_LLHTTP_H_ */

10
deps/llhttp/libllhttp.pc.in vendored Normal file
View File

@ -0,0 +1,10 @@
prefix=@CMAKE_INSTALL_PREFIX@
exec_prefix=@CMAKE_INSTALL_FULL_BINDIR@
libdir=@CMAKE_INSTALL_FULL_LIBDIR@
includedir=@CMAKE_INSTALL_FULL_INCLUDEDIR@
Name: libllhttp
Description: Node.js llhttp Library
Version: @PROJECT_VERSION@
Libs: -L${libdir} -lllhttp
Cflags: -I${includedir}

22
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@ -0,0 +1,22 @@
{
'variables': {
'llhttp_sources': [
'src/llhttp.c',
'src/api.c',
'src/http.c',
]
},
'targets': [
{
'target_name': 'llhttp',
'type': 'static_library',
'include_dirs': [ '.', 'include' ],
'direct_dependent_settings': {
'include_dirs': [ 'include' ],
},
'sources': [
'<@(llhttp_sources)',
],
},
]
}

509
deps/llhttp/src/api.c vendored Normal file
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@ -0,0 +1,509 @@
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "llhttp.h"
#define CALLBACK_MAYBE(PARSER, NAME) \
do { \
const llhttp_settings_t* settings; \
settings = (const llhttp_settings_t*) (PARSER)->settings; \
if (settings == NULL || settings->NAME == NULL) { \
err = 0; \
break; \
} \
err = settings->NAME((PARSER)); \
} while (0)
#define SPAN_CALLBACK_MAYBE(PARSER, NAME, START, LEN) \
do { \
const llhttp_settings_t* settings; \
settings = (const llhttp_settings_t*) (PARSER)->settings; \
if (settings == NULL || settings->NAME == NULL) { \
err = 0; \
break; \
} \
err = settings->NAME((PARSER), (START), (LEN)); \
if (err == -1) { \
err = HPE_USER; \
llhttp_set_error_reason((PARSER), "Span callback error in " #NAME); \
} \
} while (0)
void llhttp_init(llhttp_t* parser, llhttp_type_t type,
const llhttp_settings_t* settings) {
llhttp__internal_init(parser);
parser->type = type;
parser->settings = (void*) settings;
}
#if defined(__wasm__)
extern int wasm_on_message_begin(llhttp_t * p);
extern int wasm_on_url(llhttp_t* p, const char* at, size_t length);
extern int wasm_on_status(llhttp_t* p, const char* at, size_t length);
extern int wasm_on_header_field(llhttp_t* p, const char* at, size_t length);
extern int wasm_on_header_value(llhttp_t* p, const char* at, size_t length);
extern int wasm_on_headers_complete(llhttp_t * p, int status_code,
uint8_t upgrade, int should_keep_alive);
extern int wasm_on_body(llhttp_t* p, const char* at, size_t length);
extern int wasm_on_message_complete(llhttp_t * p);
static int wasm_on_headers_complete_wrap(llhttp_t* p) {
return wasm_on_headers_complete(p, p->status_code, p->upgrade,
llhttp_should_keep_alive(p));
}
const llhttp_settings_t wasm_settings = {
.on_message_begin = wasm_on_message_begin,
.on_url = wasm_on_url,
.on_status = wasm_on_status,
.on_header_field = wasm_on_header_field,
.on_header_value = wasm_on_header_value,
.on_headers_complete = wasm_on_headers_complete_wrap,
.on_body = wasm_on_body,
.on_message_complete = wasm_on_message_complete,
};
llhttp_t* llhttp_alloc(llhttp_type_t type) {
llhttp_t* parser = malloc(sizeof(llhttp_t));
llhttp_init(parser, type, &wasm_settings);
return parser;
}
void llhttp_free(llhttp_t* parser) {
free(parser);
}
#endif // defined(__wasm__)
/* Some getters required to get stuff from the parser */
uint8_t llhttp_get_type(llhttp_t* parser) {
return parser->type;
}
uint8_t llhttp_get_http_major(llhttp_t* parser) {
return parser->http_major;
}
uint8_t llhttp_get_http_minor(llhttp_t* parser) {
return parser->http_minor;
}
uint8_t llhttp_get_method(llhttp_t* parser) {
return parser->method;
}
int llhttp_get_status_code(llhttp_t* parser) {
return parser->status_code;
}
uint8_t llhttp_get_upgrade(llhttp_t* parser) {
return parser->upgrade;
}
void llhttp_reset(llhttp_t* parser) {
llhttp_type_t type = parser->type;
const llhttp_settings_t* settings = parser->settings;
void* data = parser->data;
uint16_t lenient_flags = parser->lenient_flags;
llhttp__internal_init(parser);
parser->type = type;
parser->settings = (void*) settings;
parser->data = data;
parser->lenient_flags = lenient_flags;
}
llhttp_errno_t llhttp_execute(llhttp_t* parser, const char* data, size_t len) {
return llhttp__internal_execute(parser, data, data + len);
}
void llhttp_settings_init(llhttp_settings_t* settings) {
memset(settings, 0, sizeof(*settings));
}
llhttp_errno_t llhttp_finish(llhttp_t* parser) {
int err;
/* We're in an error state. Don't bother doing anything. */
if (parser->error != 0) {
return 0;
}
switch (parser->finish) {
case HTTP_FINISH_SAFE_WITH_CB:
CALLBACK_MAYBE(parser, on_message_complete);
if (err != HPE_OK) return err;
/* FALLTHROUGH */
case HTTP_FINISH_SAFE:
return HPE_OK;
case HTTP_FINISH_UNSAFE:
parser->reason = "Invalid EOF state";
return HPE_INVALID_EOF_STATE;
default:
abort();
}
}
void llhttp_pause(llhttp_t* parser) {
if (parser->error != HPE_OK) {
return;
}
parser->error = HPE_PAUSED;
parser->reason = "Paused";
}
void llhttp_resume(llhttp_t* parser) {
if (parser->error != HPE_PAUSED) {
return;
}
parser->error = 0;
}
void llhttp_resume_after_upgrade(llhttp_t* parser) {
if (parser->error != HPE_PAUSED_UPGRADE) {
return;
}
parser->error = 0;
}
llhttp_errno_t llhttp_get_errno(const llhttp_t* parser) {
return parser->error;
}
const char* llhttp_get_error_reason(const llhttp_t* parser) {
return parser->reason;
}
void llhttp_set_error_reason(llhttp_t* parser, const char* reason) {
parser->reason = reason;
}
const char* llhttp_get_error_pos(const llhttp_t* parser) {
return parser->error_pos;
}
const char* llhttp_errno_name(llhttp_errno_t err) {
#define HTTP_ERRNO_GEN(CODE, NAME, _) case HPE_##NAME: return "HPE_" #NAME;
switch (err) {
HTTP_ERRNO_MAP(HTTP_ERRNO_GEN)
default: abort();
}
#undef HTTP_ERRNO_GEN
}
const char* llhttp_method_name(llhttp_method_t method) {
#define HTTP_METHOD_GEN(NUM, NAME, STRING) case HTTP_##NAME: return #STRING;
switch (method) {
HTTP_ALL_METHOD_MAP(HTTP_METHOD_GEN)
default: abort();
}
#undef HTTP_METHOD_GEN
}
const char* llhttp_status_name(llhttp_status_t status) {
#define HTTP_STATUS_GEN(NUM, NAME, STRING) case HTTP_STATUS_##NAME: return #STRING;
switch (status) {
HTTP_STATUS_MAP(HTTP_STATUS_GEN)
default: abort();
}
#undef HTTP_STATUS_GEN
}
void llhttp_set_lenient_headers(llhttp_t* parser, int enabled) {
if (enabled) {
parser->lenient_flags |= LENIENT_HEADERS;
} else {
parser->lenient_flags &= ~LENIENT_HEADERS;
}
}
void llhttp_set_lenient_chunked_length(llhttp_t* parser, int enabled) {
if (enabled) {
parser->lenient_flags |= LENIENT_CHUNKED_LENGTH;
} else {
parser->lenient_flags &= ~LENIENT_CHUNKED_LENGTH;
}
}
void llhttp_set_lenient_keep_alive(llhttp_t* parser, int enabled) {
if (enabled) {
parser->lenient_flags |= LENIENT_KEEP_ALIVE;
} else {
parser->lenient_flags &= ~LENIENT_KEEP_ALIVE;
}
}
void llhttp_set_lenient_transfer_encoding(llhttp_t* parser, int enabled) {
if (enabled) {
parser->lenient_flags |= LENIENT_TRANSFER_ENCODING;
} else {
parser->lenient_flags &= ~LENIENT_TRANSFER_ENCODING;
}
}
void llhttp_set_lenient_version(llhttp_t* parser, int enabled) {
if (enabled) {
parser->lenient_flags |= LENIENT_VERSION;
} else {
parser->lenient_flags &= ~LENIENT_VERSION;
}
}
void llhttp_set_lenient_data_after_close(llhttp_t* parser, int enabled) {
if (enabled) {
parser->lenient_flags |= LENIENT_DATA_AFTER_CLOSE;
} else {
parser->lenient_flags &= ~LENIENT_DATA_AFTER_CLOSE;
}
}
void llhttp_set_lenient_optional_lf_after_cr(llhttp_t* parser, int enabled) {
if (enabled) {
parser->lenient_flags |= LENIENT_OPTIONAL_LF_AFTER_CR;
} else {
parser->lenient_flags &= ~LENIENT_OPTIONAL_LF_AFTER_CR;
}
}
void llhttp_set_lenient_optional_crlf_after_chunk(llhttp_t* parser, int enabled) {
if (enabled) {
parser->lenient_flags |= LENIENT_OPTIONAL_CRLF_AFTER_CHUNK;
} else {
parser->lenient_flags &= ~LENIENT_OPTIONAL_CRLF_AFTER_CHUNK;
}
}
void llhttp_set_lenient_optional_cr_before_lf(llhttp_t* parser, int enabled) {
if (enabled) {
parser->lenient_flags |= LENIENT_OPTIONAL_CR_BEFORE_LF;
} else {
parser->lenient_flags &= ~LENIENT_OPTIONAL_CR_BEFORE_LF;
}
}
void llhttp_set_lenient_spaces_after_chunk_size(llhttp_t* parser, int enabled) {
if (enabled) {
parser->lenient_flags |= LENIENT_SPACES_AFTER_CHUNK_SIZE;
} else {
parser->lenient_flags &= ~LENIENT_SPACES_AFTER_CHUNK_SIZE;
}
}
/* Callbacks */
int llhttp__on_message_begin(llhttp_t* s, const char* p, const char* endp) {
int err;
CALLBACK_MAYBE(s, on_message_begin);
return err;
}
int llhttp__on_protocol(llhttp_t* s, const char* p, const char* endp) {
int err;
SPAN_CALLBACK_MAYBE(s, on_protocol, p, endp - p);
return err;
}
int llhttp__on_protocol_complete(llhttp_t* s, const char* p, const char* endp) {
int err;
CALLBACK_MAYBE(s, on_protocol_complete);
return err;
}
int llhttp__on_url(llhttp_t* s, const char* p, const char* endp) {
int err;
SPAN_CALLBACK_MAYBE(s, on_url, p, endp - p);
return err;
}
int llhttp__on_url_complete(llhttp_t* s, const char* p, const char* endp) {
int err;
CALLBACK_MAYBE(s, on_url_complete);
return err;
}
int llhttp__on_status(llhttp_t* s, const char* p, const char* endp) {
int err;
SPAN_CALLBACK_MAYBE(s, on_status, p, endp - p);
return err;
}
int llhttp__on_status_complete(llhttp_t* s, const char* p, const char* endp) {
int err;
CALLBACK_MAYBE(s, on_status_complete);
return err;
}
int llhttp__on_method(llhttp_t* s, const char* p, const char* endp) {
int err;
SPAN_CALLBACK_MAYBE(s, on_method, p, endp - p);
return err;
}
int llhttp__on_method_complete(llhttp_t* s, const char* p, const char* endp) {
int err;
CALLBACK_MAYBE(s, on_method_complete);
return err;
}
int llhttp__on_version(llhttp_t* s, const char* p, const char* endp) {
int err;
SPAN_CALLBACK_MAYBE(s, on_version, p, endp - p);
return err;
}
int llhttp__on_version_complete(llhttp_t* s, const char* p, const char* endp) {
int err;
CALLBACK_MAYBE(s, on_version_complete);
return err;
}
int llhttp__on_header_field(llhttp_t* s, const char* p, const char* endp) {
int err;
SPAN_CALLBACK_MAYBE(s, on_header_field, p, endp - p);
return err;
}
int llhttp__on_header_field_complete(llhttp_t* s, const char* p, const char* endp) {
int err;
CALLBACK_MAYBE(s, on_header_field_complete);
return err;
}
int llhttp__on_header_value(llhttp_t* s, const char* p, const char* endp) {
int err;
SPAN_CALLBACK_MAYBE(s, on_header_value, p, endp - p);
return err;
}
int llhttp__on_header_value_complete(llhttp_t* s, const char* p, const char* endp) {
int err;
CALLBACK_MAYBE(s, on_header_value_complete);
return err;
}
int llhttp__on_headers_complete(llhttp_t* s, const char* p, const char* endp) {
int err;
CALLBACK_MAYBE(s, on_headers_complete);
return err;
}
int llhttp__on_message_complete(llhttp_t* s, const char* p, const char* endp) {
int err;
CALLBACK_MAYBE(s, on_message_complete);
return err;
}
int llhttp__on_body(llhttp_t* s, const char* p, const char* endp) {
int err;
SPAN_CALLBACK_MAYBE(s, on_body, p, endp - p);
return err;
}
int llhttp__on_chunk_header(llhttp_t* s, const char* p, const char* endp) {
int err;
CALLBACK_MAYBE(s, on_chunk_header);
return err;
}
int llhttp__on_chunk_extension_name(llhttp_t* s, const char* p, const char* endp) {
int err;
SPAN_CALLBACK_MAYBE(s, on_chunk_extension_name, p, endp - p);
return err;
}
int llhttp__on_chunk_extension_name_complete(llhttp_t* s, const char* p, const char* endp) {
int err;
CALLBACK_MAYBE(s, on_chunk_extension_name_complete);
return err;
}
int llhttp__on_chunk_extension_value(llhttp_t* s, const char* p, const char* endp) {
int err;
SPAN_CALLBACK_MAYBE(s, on_chunk_extension_value, p, endp - p);
return err;
}
int llhttp__on_chunk_extension_value_complete(llhttp_t* s, const char* p, const char* endp) {
int err;
CALLBACK_MAYBE(s, on_chunk_extension_value_complete);
return err;
}
int llhttp__on_chunk_complete(llhttp_t* s, const char* p, const char* endp) {
int err;
CALLBACK_MAYBE(s, on_chunk_complete);
return err;
}
int llhttp__on_reset(llhttp_t* s, const char* p, const char* endp) {
int err;
CALLBACK_MAYBE(s, on_reset);
return err;
}
/* Private */
void llhttp__debug(llhttp_t* s, const char* p, const char* endp,
const char* msg) {
if (p == endp) {
fprintf(stderr, "p=%p type=%d flags=%02x next=null debug=%s\n", s, s->type,
s->flags, msg);
} else {
fprintf(stderr, "p=%p type=%d flags=%02x next=%02x debug=%s\n", s,
s->type, s->flags, *p, msg);
}
}

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#include <stdio.h>
#ifndef LLHTTP__TEST
# include "llhttp.h"
#else
# define llhttp_t llparse_t
#endif /* */
int llhttp_message_needs_eof(const llhttp_t* parser);
int llhttp_should_keep_alive(const llhttp_t* parser);
int llhttp__before_headers_complete(llhttp_t* parser, const char* p,
const char* endp) {
/* Set this here so that on_headers_complete() callbacks can see it */
if ((parser->flags & F_UPGRADE) &&
(parser->flags & F_CONNECTION_UPGRADE)) {
/* For responses, "Upgrade: foo" and "Connection: upgrade" are
* mandatory only when it is a 101 Switching Protocols response,
* otherwise it is purely informational, to announce support.
*/
parser->upgrade =
(parser->type == HTTP_REQUEST || parser->status_code == 101);
} else {
parser->upgrade = (parser->method == HTTP_CONNECT);
}
return 0;
}
/* Return values:
* 0 - No body, `restart`, message_complete
* 1 - CONNECT request, `restart`, message_complete, and pause
* 2 - chunk_size_start
* 3 - body_identity
* 4 - body_identity_eof
* 5 - invalid transfer-encoding for request
*/
int llhttp__after_headers_complete(llhttp_t* parser, const char* p,
const char* endp) {
int hasBody;
hasBody = parser->flags & F_CHUNKED || parser->content_length > 0;
if (
(parser->upgrade && (parser->method == HTTP_CONNECT ||
(parser->flags & F_SKIPBODY) || !hasBody)) ||
/* See RFC 2616 section 4.4 - 1xx e.g. Continue */
(parser->type == HTTP_RESPONSE && parser->status_code == 101)
) {
/* Exit, the rest of the message is in a different protocol. */
return 1;
}
if (parser->type == HTTP_RESPONSE && parser->status_code == 100) {
/* No body, restart as the message is complete */
return 0;
}
/* See RFC 2616 section 4.4 */
if (
parser->flags & F_SKIPBODY || /* response to a HEAD request */
(
parser->type == HTTP_RESPONSE && (
parser->status_code == 102 || /* Processing */
parser->status_code == 103 || /* Early Hints */
parser->status_code == 204 || /* No Content */
parser->status_code == 304 /* Not Modified */
)
)
) {
return 0;
} else if (parser->flags & F_CHUNKED) {
/* chunked encoding - ignore Content-Length header, prepare for a chunk */
return 2;
} else if (parser->flags & F_TRANSFER_ENCODING) {
if (parser->type == HTTP_REQUEST &&
(parser->lenient_flags & LENIENT_CHUNKED_LENGTH) == 0 &&
(parser->lenient_flags & LENIENT_TRANSFER_ENCODING) == 0) {
/* RFC 7230 3.3.3 */
/* If a Transfer-Encoding header field
* is present in a request and the chunked transfer coding is not
* the final encoding, the message body length cannot be determined
* reliably; the server MUST respond with the 400 (Bad Request)
* status code and then close the connection.
*/
return 5;
} else {
/* RFC 7230 3.3.3 */
/* If a Transfer-Encoding header field is present in a response and
* the chunked transfer coding is not the final encoding, the
* message body length is determined by reading the connection until
* it is closed by the server.
*/
return 4;
}
} else {
if (!(parser->flags & F_CONTENT_LENGTH)) {
if (!llhttp_message_needs_eof(parser)) {
/* Assume content-length 0 - read the next */
return 0;
} else {
/* Read body until EOF */
return 4;
}
} else if (parser->content_length == 0) {
/* Content-Length header given but zero: Content-Length: 0\r\n */
return 0;
} else {
/* Content-Length header given and non-zero */
return 3;
}
}
}
int llhttp__after_message_complete(llhttp_t* parser, const char* p,
const char* endp) {
int should_keep_alive;
should_keep_alive = llhttp_should_keep_alive(parser);
parser->finish = HTTP_FINISH_SAFE;
parser->flags = 0;
/* NOTE: this is ignored in loose parsing mode */
return should_keep_alive;
}
int llhttp_message_needs_eof(const llhttp_t* parser) {
if (parser->type == HTTP_REQUEST) {
return 0;
}
/* See RFC 2616 section 4.4 */
if (parser->status_code / 100 == 1 || /* 1xx e.g. Continue */
parser->status_code == 204 || /* No Content */
parser->status_code == 304 || /* Not Modified */
(parser->flags & F_SKIPBODY)) { /* response to a HEAD request */
return 0;
}
/* RFC 7230 3.3.3, see `llhttp__after_headers_complete` */
if ((parser->flags & F_TRANSFER_ENCODING) &&
(parser->flags & F_CHUNKED) == 0) {
return 1;
}
if (parser->flags & (F_CHUNKED | F_CONTENT_LENGTH)) {
return 0;
}
return 1;
}
int llhttp_should_keep_alive(const llhttp_t* parser) {
if (parser->http_major > 0 && parser->http_minor > 0) {
/* HTTP/1.1 */
if (parser->flags & F_CONNECTION_CLOSE) {
return 0;
}
} else {
/* HTTP/1.0 or earlier */
if (!(parser->flags & F_CONNECTION_KEEP_ALIVE)) {
return 0;
}
}
return !llhttp_message_needs_eof(parser);
}

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# This file is used by GN for building, which is NOT the build system used for
# building official binaries.
# Please edit the gyp files if you are making changes to build system.
# The actual configurations are put inside a template in unofficial.gni to
# prevent accidental edits from contributors.
template("llhttp_gn_build") {
config("llhttp_config") {
include_dirs = [ "include" ]
}
gypi_values = exec_script("../../tools/gypi_to_gn.py",
[ rebase_path("llhttp.gyp") ],
"scope",
[ "llhttp.gyp" ])
source_set(target_name) {
forward_variables_from(invoker, "*")
public_configs = [ ":llhttp_config" ]
include_dirs = [ "include" ]
sources = gypi_values.llhttp_sources
if (is_clang || !is_win) {
cflags_c = [
"-Wno-implicit-fallthrough",
"-Wno-unreachable-code",
]
}
}
}