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Switch from http-parser to llhttp

Browse Source 
http-parser is an unmaintained library that has been replaced by llhttp.

Resolves: #598

Signed-off-by: Nikos Mavrogiannopoulos <n.mavrogiannopoulos@gmail.com>
This commit is contained in:
Nikos Mavrogiannopoulos 2024-04-12 23:16:41 +02:00
parent db90324b08
commit cf56c9754b
18 changed files with 11821 additions and 3083 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
.gitlab-ci.yml
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@ -16,7 +16,7 @@ variables:
CENTOS9_BUILD: buildenv-centos9
CENTOS7_BUILD: buildenv-centos7
CENTOS6_BUILD: buildenv-centos6
MINIMALCONFIG: "--without-protobuf --without-libtalloc-prefix --without-libnl --without-maxmind --without-geoip --without-libreadline-prefix --without-liboath --without-libc-prefix --without-pam --without-radius --without-libcrypt-prefix --without-utmp --without-libutil-prefix --without-libwrap --without-libwrap-prefix --without-libseccomp-prefix --without-libsystemd-prefix --without-http-parser --without-lz4 --without-gssapi --without-pcl-lib --disable-rpath --disable-seccomp --disable-anyconnect-compat --disable-compression"
MINIMALCONFIG: "--without-protobuf --without-libtalloc-prefix --without-libnl --without-maxmind --without-geoip --without-libreadline-prefix --without-liboath --without-libc-prefix --without-pam --without-radius --without-libcrypt-prefix --without-utmp --without-libutil-prefix --without-libwrap --without-libwrap-prefix --without-libseccomp-prefix --without-libsystemd-prefix --without-llhttp --without-lz4 --without-gssapi --without-pcl-lib --disable-rpath --disable-seccomp --disable-anyconnect-compat --disable-compression"
JOBS: 2
Signoff:

7
Makefile.am
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@ -18,6 +18,13 @@ local-code-coverage-output: code-coverage-capture
test -f "$(CODE_COVERAGE_OUTPUT_DIRECTORY)/index.html" || exit 1
cat "$(CODE_COVERAGE_OUTPUT_DIRECTORY)/index.html"|grep headerCovTableEntry|grep "%"|head -1|sed 's/&nbsp;//g'|sed 's/^.*>\([0-9\.\ %]*\)<.*$$/coverage lines: \1/'
LLHTTP_VERSION = 9.2.1
llhttp-update:
test -f v$(LLHTTP_VERSION).tar.gz || wget -c https://github.com/nodejs/llhttp/archive/refs/tags/release/v$(LLHTTP_VERSION).tar.gz
tar xvf v$(LLHTTP_VERSION).tar.gz
cp llhttp-release-v$(LLHTTP_VERSION)/src/llhttp.c llhttp-release-v$(LLHTTP_VERSION)/src/http.c \
llhttp-release-v$(LLHTTP_VERSION)/src/api.c llhttp-release-v$(LLHTTP_VERSION)/include/llhttp.h src/llhttp/
clang:
make clean
scan-build ./configure

2
NEWS
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@ -1,4 +1,6 @@
* Version 1.2.5 (unreleased)
- Switch to https://github.com/nodejs/llhttp from http-parser.
http-parser was a liability as an unmaintained project (#598)
- Bump the number of groups per account from 128 to 512 (#219)
- Allow connecting users to select an authgroup by appending the
group name to the URL, as in https://vpn.example.com/groupname;

4
README.md
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@ -36,7 +36,7 @@ apt-get install -y libgnutls28-dev libev-dev
apt-get install -y libpam0g-dev liblz4-dev libseccomp-dev \
libreadline-dev libnl-route-3-dev libkrb5-dev libradcli-dev \
libcurl4-gnutls-dev libcjose-dev libjansson-dev liboath-dev \
libprotobuf-c-dev libtalloc-dev libhttp-parser-dev protobuf-c-compiler \
libprotobuf-c-dev libtalloc-dev libllhttp-dev protobuf-c-compiler \
gperf iperf3 lcov libuid-wrapper libpam-wrapper libnss-wrapper \
libsocket-wrapper gss-ntlmssp haproxy iputils-ping freeradius \
gawk gnutls-bin iproute2 yajl-tools tcpdump
@ -52,7 +52,7 @@ yum install -y gnutls-devel libev-devel
yum install -y pam-devel lz4-devel libseccomp-devel readline-devel \
libnl3-devel krb5-devel radcli-devel libcurl-devel cjose-devel \
jansson-devel liboath-devel protobuf-c-devel libtalloc-devel \
http-parser-devel protobuf-c gperf iperf3 lcov uid_wrapper \
llhttp-devel protobuf-c gperf iperf3 lcov uid_wrapper \
pam_wrapper nss_wrapper socket_wrapper gssntlmssp haproxy iputils \
freeradius gawk gnutls-utils iproute yajl tcpdump
# For manpages

32
configure.ac
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@ -465,25 +465,25 @@ else
AC_DEFINE_UNQUOTED([OCCTL_PAGER], ["$occtl_pager"], [The default pager for occtl])
fi
AC_ARG_WITH(http-parser,
AS_HELP_STRING([--without-http-parser], [use the included http parser]),
test_for_http_parser=$withval,
test_for_http_parser=yes)
AC_ARG_WITH(llhttp,
AS_HELP_STRING([--without-llhttp], [use the included llhttp]),
test_for_llhttp=$withval,
test_for_llhttp=yes)
dnl Test for http_parser library
with_local_http_parser=yes
dnl Test for llhttp library
with_local_llhttp=yes
if test "$test_for_http_parser" = yes;then
if test "$test_for_llhttp" = yes;then
oldlibs=$LIBS
LIBS="$oldlibs -lhttp_parser"
AC_MSG_CHECKING([for http_parser library])
LIBS="$oldlibs -lllhttp"
AC_MSG_CHECKING([for llhttp library])
AC_LINK_IFELSE([AC_LANG_PROGRAM([
#include <http_parser.h>],[
http_parser_init(0, 0);])],
#include <llhttp.h>],[
llhttp_settings_init(0);])],
[AC_MSG_RESULT(yes)
AC_SUBST([HTTP_PARSER_LIBS], [-lhttp_parser])
AC_SUBST([HTTP_PARSER_CFLAGS], [])
with_local_http_parser=no],
AC_SUBST([LLHTTP_LIBS], [-lllhttp])
AC_SUBST([LLHTTP_CFLAGS], [])
with_local_llhttp=no],
[AC_MSG_RESULT(no)
AC_MSG_WARN([[
***
@ -492,7 +492,7 @@ AC_LINK_IFELSE([AC_LANG_PROGRAM([
*** ]])])
LIBS="$oldlibs"
fi
AM_CONDITIONAL(LOCAL_HTTP_PARSER, test "x$with_local_http_parser" != xno)
AM_CONDITIONAL(LOCAL_LLHTTP, test "x$with_local_llhttp" != xno)
dnl compression
AC_ARG_ENABLE(compression,
@ -736,7 +736,7 @@ Summary of build options:
local talloc: ${with_local_talloc}
local protobuf-c: ${with_local_protobuf_c}
local PCL library: ${with_local_pcl}
local http-parser: ${with_local_http_parser}
local llhttp: ${with_local_llhttp}
seccomp trap: ${use_seccomp_trap}
capture latency stats ${have_latency_stats}
])

8
src/Makefile.am
View File

@ -20,18 +20,18 @@ EXTRA_DIST = version.inc.in version.inc \
CORE_LDADD = libccan.a libcommon.a
CORE_LDADD += $(LIBGNUTLS_LIBS) $(PAM_LIBS) $(LIBUTIL) \
$(LIBSECCOMP) $(LIBWRAP) $(LIBCRYPT) $(NEEDED_HTTP_PARSER_LIBS) \
$(LIBSECCOMP) $(LIBWRAP) $(LIBCRYPT) $(NEEDED_LLHTTP_LIBS) \
$(NEEDED_LIBPROTOBUF_LIBS) $(LIBSYSTEMD) $(LIBTALLOC_LIBS) \
$(RADCLI_LIBS) $(LIBLZ4_LIBS) $(LIBKRB5_LIBS) \
$(LIBTASN1_LIBS) $(LIBOATH_LIBS) $(LIBNETTLE_LIBS) \
$(LIBEV_LIBS) libipc.a $(NEEDED_LIBPROTOBUF_LIBS) \
$(CODE_COVERAGE_LDFLAGS)
if LOCAL_HTTP_PARSER
HTTP_PARSER_SOURCES = http-parser/http_parser.c http-parser/http_parser.h
if LOCAL_LLHTTP
LLHTTP_SOURCES = llhttp/llhttp.c llhttp/llhttp.h llhttp/api.c llhttp/http.c
endif
CORE_SOURCES = $(HTTP_PARSER_SOURCES) \
CORE_SOURCES = $(LLHTTP_SOURCES) \
common/hmac.c common/hmac.h common/snapshot.c common/snapshot.h \
common-config.h config.c config-kkdcp.c config-ports.c defs.h gettime.h \
inih/ini.c inih/ini.h \

8
src/common.mk
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@ -4,11 +4,11 @@ if LOCAL_TALLOC
AM_CPPFLAGS += -I$(top_srcdir)/src/ccan/talloc
endif
if LOCAL_HTTP_PARSER
AM_CPPFLAGS += -I$(top_srcdir)/src/http-parser/
NEEDED_HTTP_PARSER_LIBS =
if LOCAL_LLHTTP
AM_CPPFLAGS += -I$(top_srcdir)/src/llhttp/
NEEDED_LLHTTP_LIBS =
else
NEEDED_HTTP_PARSER_LIBS = $(HTTP_PARSER_LIBS)
NEEDED_LLHTTP_LIBS = $(LLHTTP_LIBS)
endif
if LOCAL_PROTOBUF_C

2575
src/http-parser/http_parser.c
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File diff suppressed because it is too large Load Diff

449
src/http-parser/http_parser.h
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@ -1,449 +0,0 @@
/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
*
* 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.
*/
#ifndef http_parser_h
#define http_parser_h
#ifdef __cplusplus
extern "C" {
#endif
/* Also update SONAME in the Makefile whenever you change these. */
#define HTTP_PARSER_VERSION_MAJOR 2
#define HTTP_PARSER_VERSION_MINOR 9
#define HTTP_PARSER_VERSION_PATCH 4
#include <stddef.h>
#if defined(_WIN32) && !defined(__MINGW32__) && \
(!defined(_MSC_VER) || _MSC_VER<1600) && !defined(__WINE__)
#include <BaseTsd.h>
typedef __int8 int8_t;
typedef unsigned __int8 uint8_t;
typedef __int16 int16_t;
typedef unsigned __int16 uint16_t;
typedef __int32 int32_t;
typedef unsigned __int32 uint32_t;
typedef __int64 int64_t;
typedef unsigned __int64 uint64_t;
#elif (defined(__sun) || defined(__sun__)) && defined(__SunOS_5_9)
#include <sys/inttypes.h>
#else
#include <stdint.h>
#endif
/* Compile with -DHTTP_PARSER_STRICT=0 to make less checks, but run
* faster
*/
#ifndef HTTP_PARSER_STRICT
# define HTTP_PARSER_STRICT 1
#endif
/* Maximum header size allowed. If the macro is not defined
* before including this header then the default is used. To
* change the maximum header size, define the macro in the build
* environment (e.g. -DHTTP_MAX_HEADER_SIZE=<value>). To remove
* the effective limit on the size of the header, define the macro
* to a very large number (e.g. -DHTTP_MAX_HEADER_SIZE=0x7fffffff)
*/
#ifndef HTTP_MAX_HEADER_SIZE
# define HTTP_MAX_HEADER_SIZE (80*1024)
#endif
typedef struct http_parser http_parser;
typedef struct http_parser_settings http_parser_settings;
/* Callbacks should return non-zero to indicate an error. The parser will
* then halt execution.
*
* The one exception is on_headers_complete. In a HTTP_RESPONSE parser
* returning '1' from on_headers_complete will tell the parser that it
* should not expect a body. This is used when receiving a response to a
* HEAD request which may contain 'Content-Length' or 'Transfer-Encoding:
* chunked' headers that indicate the presence of a body.
*
* Returning `2` from on_headers_complete will tell parser that it should not
* expect neither a body nor any further responses on this connection. This is
* useful for handling responses to a CONNECT request which may not contain
* `Upgrade` or `Connection: upgrade` headers.
*
* http_data_cb does not return data chunks. It will be called arbitrarily
* many times for each string. E.G. you might get 10 callbacks for "on_url"
* each providing just a few characters more data.
*/
typedef int (*http_data_cb) (http_parser*, const char *at, size_t length);
typedef int (*http_cb) (http_parser*);
/* Status Codes */
#define HTTP_STATUS_MAP(XX) \
XX(100, CONTINUE, Continue) \
XX(101, SWITCHING_PROTOCOLS, Switching Protocols) \
XX(102, PROCESSING, Processing) \
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(226, IM_USED, IM Used) \
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(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(421, MISDIRECTED_REQUEST, Misdirected Request) \
XX(422, UNPROCESSABLE_ENTITY, Unprocessable Entity) \
XX(423, LOCKED, Locked) \
XX(424, FAILED_DEPENDENCY, Failed Dependency) \
XX(426, UPGRADE_REQUIRED, Upgrade Required) \
XX(428, PRECONDITION_REQUIRED, Precondition Required) \
XX(429, TOO_MANY_REQUESTS, Too Many Requests) \
XX(431, REQUEST_HEADER_FIELDS_TOO_LARGE, Request Header Fields Too Large) \
XX(451, UNAVAILABLE_FOR_LEGAL_REASONS, Unavailable For Legal Reasons) \
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(510, NOT_EXTENDED, Not Extended) \
XX(511, NETWORK_AUTHENTICATION_REQUIRED, Network Authentication Required) \
enum http_status
{
#define XX(num, name, string) HTTP_STATUS_##name = num,
HTTP_STATUS_MAP(XX)
#undef XX
};
/* Request Methods */
#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) \
/* pathological */ \
XX(5, CONNECT, CONNECT) \
XX(6, OPTIONS, OPTIONS) \
XX(7, TRACE, TRACE) \
/* WebDAV */ \
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) \
/* subversion */ \
XX(20, REPORT, REPORT) \
XX(21, MKACTIVITY, MKACTIVITY) \
XX(22, CHECKOUT, CHECKOUT) \
XX(23, MERGE, MERGE) \
/* upnp */ \
XX(24, MSEARCH, M-SEARCH) \
XX(25, NOTIFY, NOTIFY) \
XX(26, SUBSCRIBE, SUBSCRIBE) \
XX(27, UNSUBSCRIBE, UNSUBSCRIBE) \
/* RFC-5789 */ \
XX(28, PATCH, PATCH) \
XX(29, PURGE, PURGE) \
/* CalDAV */ \
XX(30, MKCALENDAR, MKCALENDAR) \
/* RFC-2068, section 19.6.1.2 */ \
XX(31, LINK, LINK) \
XX(32, UNLINK, UNLINK) \
/* icecast */ \
XX(33, SOURCE, SOURCE) \
enum http_method
{
#define XX(num, name, string) HTTP_##name = num,
HTTP_METHOD_MAP(XX)
#undef XX
};
enum http_parser_type { HTTP_REQUEST, HTTP_RESPONSE, HTTP_BOTH };
/* Flag values for http_parser.flags field */
enum flags
{ F_CHUNKED = 1 << 0
, F_CONNECTION_KEEP_ALIVE = 1 << 1
, F_CONNECTION_CLOSE = 1 << 2
, F_CONNECTION_UPGRADE = 1 << 3
, F_TRAILING = 1 << 4
, F_UPGRADE = 1 << 5
, F_SKIPBODY = 1 << 6
, F_CONTENTLENGTH = 1 << 7
};
/* Map for errno-related constants
*
* The provided argument should be a macro that takes 2 arguments.
*/
#define HTTP_ERRNO_MAP(XX) \
/* No error */ \
XX(OK, "success") \
\
/* Callback-related errors */ \
XX(CB_message_begin, "the on_message_begin callback failed") \
XX(CB_url, "the on_url callback failed") \
XX(CB_header_field, "the on_header_field callback failed") \
XX(CB_header_value, "the on_header_value callback failed") \
XX(CB_headers_complete, "the on_headers_complete callback failed") \
XX(CB_body, "the on_body callback failed") \
XX(CB_message_complete, "the on_message_complete callback failed") \
XX(CB_status, "the on_status callback failed") \
XX(CB_chunk_header, "the on_chunk_header callback failed") \
XX(CB_chunk_complete, "the on_chunk_complete callback failed") \
\
/* Parsing-related errors */ \
XX(INVALID_EOF_STATE, "stream ended at an unexpected time") \
XX(HEADER_OVERFLOW, \
"too many header bytes seen; overflow detected") \
XX(CLOSED_CONNECTION, \
"data received after completed connection: close message") \
XX(INVALID_VERSION, "invalid HTTP version") \
XX(INVALID_STATUS, "invalid HTTP status code") \
XX(INVALID_METHOD, "invalid HTTP method") \
XX(INVALID_URL, "invalid URL") \
XX(INVALID_HOST, "invalid host") \
XX(INVALID_PORT, "invalid port") \
XX(INVALID_PATH, "invalid path") \
XX(INVALID_QUERY_STRING, "invalid query string") \
XX(INVALID_FRAGMENT, "invalid fragment") \
XX(LF_EXPECTED, "LF character expected") \
XX(INVALID_HEADER_TOKEN, "invalid character in header") \
XX(INVALID_CONTENT_LENGTH, \
"invalid character in content-length header") \
XX(UNEXPECTED_CONTENT_LENGTH, \
"unexpected content-length header") \
XX(INVALID_CHUNK_SIZE, \
"invalid character in chunk size header") \
XX(INVALID_CONSTANT, "invalid constant string") \
XX(INVALID_INTERNAL_STATE, "encountered unexpected internal state")\
XX(STRICT, "strict mode assertion failed") \
XX(PAUSED, "parser is paused") \
XX(UNKNOWN, "an unknown error occurred") \
XX(INVALID_TRANSFER_ENCODING, \
"request has invalid transfer-encoding") \
/* Define HPE_* values for each errno value above */
#define HTTP_ERRNO_GEN(n, s) HPE_##n,
enum http_errno {
HTTP_ERRNO_MAP(HTTP_ERRNO_GEN)
};
#undef HTTP_ERRNO_GEN
/* Get an http_errno value from an http_parser */
#define HTTP_PARSER_ERRNO(p) ((enum http_errno) (p)->http_errno)
struct http_parser {
/** PRIVATE **/
unsigned int type : 2; /* enum http_parser_type */
unsigned int flags : 8; /* F_* values from 'flags' enum; semi-public */
unsigned int state : 7; /* enum state from http_parser.c */
unsigned int header_state : 7; /* enum header_state from http_parser.c */
unsigned int index : 5; /* index into current matcher */
unsigned int uses_transfer_encoding : 1; /* Transfer-Encoding header is present */
unsigned int allow_chunked_length : 1; /* Allow headers with both
* `Content-Length` and
* `Transfer-Encoding: chunked` set */
unsigned int lenient_http_headers : 1;
uint32_t nread; /* # bytes read in various scenarios */
uint64_t content_length; /* # bytes in body. `(uint64_t) -1` (all bits one)
* if no Content-Length header.
*/
/** READ-ONLY **/
unsigned short http_major;
unsigned short http_minor;
unsigned int status_code : 16; /* responses only */
unsigned int method : 8; /* requests only */
unsigned int http_errno : 7;
/* 1 = Upgrade header was present and the parser has exited because of that.
* 0 = No upgrade header present.
* Should be checked when http_parser_execute() returns in addition to
* error checking.
*/
unsigned int upgrade : 1;
/** PUBLIC **/
void *data; /* A pointer to get hook to the "connection" or "socket" object */
};
struct http_parser_settings {
http_cb on_message_begin;
http_data_cb on_url;
http_data_cb on_status;
http_data_cb on_header_field;
http_data_cb on_header_value;
http_cb on_headers_complete;
http_data_cb on_body;
http_cb on_message_complete;
/* When on_chunk_header is called, the current chunk length is stored
* in parser->content_length.
*/
http_cb on_chunk_header;
http_cb on_chunk_complete;
};
enum http_parser_url_fields
{ UF_SCHEMA = 0
, UF_HOST = 1
, UF_PORT = 2
, UF_PATH = 3
, UF_QUERY = 4
, UF_FRAGMENT = 5
, UF_USERINFO = 6
, UF_MAX = 7
};
/* Result structure for http_parser_parse_url().
*
* Callers should index into field_data[] with UF_* values iff field_set
* has the relevant (1 << UF_*) bit set. As a courtesy to clients (and
* because we probably have padding left over), we convert any port to
* a uint16_t.
*/
struct http_parser_url {
uint16_t field_set; /* Bitmask of (1 << UF_*) values */
uint16_t port; /* Converted UF_PORT string */
struct {
uint16_t off; /* Offset into buffer in which field starts */
uint16_t len; /* Length of run in buffer */
} field_data[UF_MAX];
};
/* Returns the library version. Bits 16-23 contain the major version number,
* bits 8-15 the minor version number and bits 0-7 the patch level.
* Usage example:
*
* unsigned long version = http_parser_version();
* unsigned major = (version >> 16) & 255;
* unsigned minor = (version >> 8) & 255;
* unsigned patch = version & 255;
* printf("http_parser v%u.%u.%u\n", major, minor, patch);
*/
unsigned long http_parser_version(void);
void http_parser_init(http_parser *parser, enum http_parser_type type);
/* Initialize http_parser_settings members to 0
*/
void http_parser_settings_init(http_parser_settings *settings);
/* Executes the parser. Returns number of parsed bytes. Sets
* `parser->http_errno` on error. */
size_t http_parser_execute(http_parser *parser,
const http_parser_settings *settings,
const char *data,
size_t len);
/* If http_should_keep_alive() in the on_headers_complete or
* on_message_complete callback returns 0, then this should be
* the last message on the connection.
* If you are the server, respond with the "Connection: close" header.
* If you are the client, close the connection.
*/
int http_should_keep_alive(const http_parser *parser);
/* Returns a string version of the HTTP method. */
const char *http_method_str(enum http_method m);
/* Returns a string version of the HTTP status code. */
const char *http_status_str(enum http_status s);
/* Return a string name of the given error */
const char *http_errno_name(enum http_errno err);
/* Return a string description of the given error */
const char *http_errno_description(enum http_errno err);
/* Initialize all http_parser_url members to 0 */
void http_parser_url_init(struct http_parser_url *u);
/* Parse a URL; return nonzero on failure */
int http_parser_parse_url(const char *buf, size_t buflen,
int is_connect,
struct http_parser_url *u);
/* Pause or un-pause the parser; a nonzero value pauses */
void http_parser_pause(http_parser *parser, int paused);
/* Checks if this is the final chunk of the body. */
int http_body_is_final(const http_parser *parser);
/* Change the maximum header size provided at compile time. */
void http_parser_set_max_header_size(uint32_t size);
#ifdef __cplusplus
}
#endif
#endif

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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_ */

2
src/vpn.h
View File

@ -23,7 +23,7 @@
#include <config.h>
#include <gnutls/gnutls.h>
#include <http_parser.h>
#include <llhttp.h>
#include <ccan/htable/htable.h>
#include <ccan/list/list.h>
#include <sys/types.h>

2
src/worker-auth.c
View File

@ -42,7 +42,7 @@
#include <common.h>
#include <tlslib.h>
#include <http_parser.h>
#include <llhttp.h>
#define VERSION_MSG "<version who=\"sg\">0.1(1)</version>\n"

12
src/worker-http.c
View File

@ -763,7 +763,7 @@ url_handler_fn http_post_url_handler(struct worker_st *ws, const char *url)
return h;
}
int http_url_cb(http_parser * parser, const char *at, size_t length)
int http_url_cb(llhttp_t * parser, const char *at, size_t length)
{
struct worker_st *ws = parser->data;
struct http_req_st *req = &ws->req;
@ -779,7 +779,7 @@ int http_url_cb(http_parser * parser, const char *at, size_t length)
return 0;
}
int http_header_field_cb(http_parser * parser, const char *at, size_t length)
int http_header_field_cb(llhttp_t * parser, const char *at, size_t length)
{
struct worker_st *ws = parser->data;
struct http_req_st *req = &ws->req;
@ -815,7 +815,7 @@ static void header_check(struct http_req_st *req)
req->next_header = 0;
}
int http_header_value_cb(http_parser * parser, const char *at, size_t length)
int http_header_value_cb(llhttp_t * parser, const char *at, size_t length)
{
struct worker_st *ws = parser->data;
struct http_req_st *req = &ws->req;
@ -835,7 +835,7 @@ int http_header_value_cb(http_parser * parser, const char *at, size_t length)
return 0;
}
int http_header_complete_cb(http_parser * parser)
int http_header_complete_cb(llhttp_t * parser)
{
struct worker_st *ws = parser->data;
struct http_req_st *req = &ws->req;
@ -855,7 +855,7 @@ int http_header_complete_cb(http_parser * parser)
return 0;
}
int http_message_complete_cb(http_parser * parser)
int http_message_complete_cb(llhttp_t * parser)
{
struct worker_st *ws = parser->data;
struct http_req_st *req = &ws->req;
@ -864,7 +864,7 @@ int http_message_complete_cb(http_parser * parser)
return 0;
}
int http_body_cb(http_parser * parser, const char *at, size_t length)
int http_body_cb(llhttp_t * parser, const char *at, size_t length)
{
struct worker_st *ws = parser->data;
struct http_req_st *req = &ws->req;

36
src/worker-vpn.c
View File

@ -57,7 +57,7 @@
#include "ipc.pb-c.h"
#include <worker.h>
#include <tlslib.h>
#include <http_parser.h>
#include <llhttp.h>
#if defined(CAPTURE_LATENCY_SUPPORT)
#include <linux/net_tstamp.h>
@ -790,12 +790,13 @@ static void check_camouflage_url(struct worker_st *ws)
void vpn_server(struct worker_st *ws)
{
int ret;
ssize_t nparsed, nrecvd;
ssize_t nrecvd;
gnutls_session_t session = NULL;
http_parser parser;
http_parser_settings settings;
llhttp_t parser;
llhttp_settings_t settings;
url_handler_fn fn;
int requests_left = MAX_HTTP_REQUESTS;
enum llhttp_errno lerr;
ocsigaltstack(ws);
@ -898,7 +899,7 @@ void vpn_server(struct worker_st *ws)
session_info_send(ws);
memset(&settings, 0, sizeof(settings));
llhttp_settings_init(&settings);
ws->selected_auth = &WSPCONFIG(ws)->auth[0];
if (ws->cert_auth_ok)
@ -924,7 +925,7 @@ void vpn_server(struct worker_st *ws)
exit_worker(ws);
}
http_parser_init(&parser, HTTP_REQUEST);
llhttp_init(&parser, HTTP_REQUEST, &settings);
parser.data = ws;
http_req_reset(ws);
/* parse as we go */
@ -939,11 +940,12 @@ void vpn_server(struct worker_st *ws)
exit_worker(ws);
}
nparsed =
http_parser_execute(&parser, &settings, (void *)ws->buffer,
nrecvd);
if (nparsed == 0) {
oclog(ws, LOG_INFO, "error parsing HTTP request");
lerr = llhttp_execute(&parser, (void *)ws->buffer, nrecvd);
if (lerr == HPE_PAUSED_UPGRADE && parser.method == HTTP_CONNECT) {
llhttp_resume_after_upgrade(&parser);
break;
} else if (lerr != HPE_OK) {
oclog(ws, LOG_INFO, "error parsing HTTP request: %s", llhttp_errno_name(lerr));
exit_worker(ws);
}
} while (ws->req.headers_complete == 0);
@ -989,12 +991,11 @@ void vpn_server(struct worker_st *ws)
exit_worker(ws);
}
nparsed =
http_parser_execute(&parser, &settings, (void *)ws->buffer,
nrecvd);
if (nparsed == 0) {
lerr =
llhttp_execute(&parser, (void *)ws->buffer, nrecvd);
if (lerr != HPE_OK) {
oclog(ws, LOG_HTTP_DEBUG,
"error parsing HTTP POST request");
"error parsing HTTP POST request: %s", llhttp_errno_name(lerr));
exit_worker(ws);
}
}
@ -1021,11 +1022,12 @@ void vpn_server(struct worker_st *ws)
} else {
oclog(ws, LOG_HTTP_DEBUG, "unexpected HTTP method %s",
http_method_str(parser.method));
llhttp_method_name(parser.method));
response_404(ws, parser.http_minor);
}
finish:
llhttp_finish(&parser);
cstp_close(ws);
}

14
src/worker.h
View File

@ -206,7 +206,7 @@ typedef struct worker_st {
int conn_fd;
sock_type_t conn_type; /* AF_UNIX or something else */
http_parser *parser;
llhttp_t *parser;
struct list_head *vconfig;
@ -365,12 +365,12 @@ int get_cert_names(worker_st * ws, const gnutls_datum_t * raw);
void set_resume_db_funcs(gnutls_session_t);
typedef int (*url_handler_fn) (worker_st *, unsigned http_ver);
int http_url_cb(http_parser * parser, const char *at, size_t length);
int http_header_value_cb(http_parser * parser, const char *at, size_t length);
int http_header_field_cb(http_parser * parser, const char *at, size_t length);
int http_header_complete_cb(http_parser * parser);
int http_message_complete_cb(http_parser * parser);
int http_body_cb(http_parser * parser, const char *at, size_t length);
int http_url_cb(llhttp_t * parser, const char *at, size_t length);
int http_header_value_cb(llhttp_t * parser, const char *at, size_t length);
int http_header_field_cb(llhttp_t * parser, const char *at, size_t length);
int http_header_complete_cb(llhttp_t * parser);
int http_message_complete_cb(llhttp_t * parser);
int http_body_cb(llhttp_t * parser, const char *at, size_t length);
void http_req_deinit(worker_st * ws);
void http_req_reset(worker_st * ws);
void http_req_init(worker_st * ws);