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Ekko.bao
2025-05-03 16:24:47 +08:00
parent 56f7490d00
commit cfb9d12f3c
692 changed files with 37004 additions and 1 deletions
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7
lib/llhttp/CMakeLists.txt Normal file
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cmake_minimum_required(VERSION 3.5)
aux_source_directory(. llhttp_src)
set(DIR_SRCS ${llhttp_src})
include_directories(.)
add_library( llhttp
STATIC
${DIR_SRCS})

22
lib/llhttp/LICENSE-MIT Normal file
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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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lib/llhttp/api.c Normal file
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#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 = {
wasm_on_message_begin,
wasm_on_url,
wasm_on_status,
NULL,
NULL,
wasm_on_header_field,
wasm_on_header_value,
NULL,
NULL,
wasm_on_headers_complete_wrap,
wasm_on_body,
wasm_on_message_complete,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
};
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_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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#ifndef INCLUDE_LLHTTP_H_
#define INCLUDE_LLHTTP_H_
#define LLHTTP_VERSION_MAJOR 9
#define LLHTTP_VERSION_MINOR 2
#define LLHTTP_VERSION_PATCH 1
#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
};
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) \
#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_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_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_ */