diff options
Diffstat (limited to 'third-party/llhttp/include')
| -rw-r--r-- | third-party/llhttp/include/llhttp.h | 815 |
1 files changed, 815 insertions, 0 deletions
diff --git a/third-party/llhttp/include/llhttp.h b/third-party/llhttp/include/llhttp.h new file mode 100644 index 0000000..88ef85d --- /dev/null +++ b/third-party/llhttp/include/llhttp.h @@ -0,0 +1,815 @@ +#ifndef INCLUDE_LLHTTP_H_ +#define INCLUDE_LLHTTP_H_ + +#define LLHTTP_VERSION_MAJOR 8 +#define LLHTTP_VERSION_MINOR 1 +#define LLHTTP_VERSION_PATCH 0 + +#ifndef LLHTTP_STRICT_MODE +# define LLHTTP_STRICT_MODE 0 +#endif + +#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; + uint8_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 +}; +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 +}; +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) \ + + +#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) \ + + +#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"))) +#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". + * + * **(USE AT YOUR OWN RISK)** + */ +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. + * + * **(USE AT YOUR OWN RISK)** + */ +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. + * + * **(USE AT YOUR OWN RISK)** + */ +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. + * + * **(USE AT YOUR OWN RISK)** + */ +LLHTTP_EXPORT +void llhttp_set_lenient_transfer_encoding(llhttp_t* parser, int enabled); + +#ifdef __cplusplus +} /* extern "C" */ +#endif +#endif /* INCLUDE_LLHTTP_API_H_ */ + +#endif /* INCLUDE_LLHTTP_H_ */ |