| /* |
| * |
| * Copyright 2015 gRPC authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| #ifndef GRPC_CORE_LIB_HTTP_PARSER_H |
| #define GRPC_CORE_LIB_HTTP_PARSER_H |
| |
| #include <grpc/slice.h> |
| #include <grpc/support/port_platform.h> |
| #include "src/core/lib/debug/trace.h" |
| #include "src/core/lib/iomgr/error.h" |
| |
| /* Maximum length of a header string of the form 'Key: Value\r\n' */ |
| #define GRPC_HTTP_PARSER_MAX_HEADER_LENGTH 4096 |
| |
| /* A single header to be passed in a request */ |
| typedef struct grpc_http_header { |
| char *key; |
| char *value; |
| } grpc_http_header; |
| |
| typedef enum { |
| GRPC_HTTP_FIRST_LINE, |
| GRPC_HTTP_HEADERS, |
| GRPC_HTTP_BODY |
| } grpc_http_parser_state; |
| |
| typedef enum { |
| GRPC_HTTP_HTTP10, |
| GRPC_HTTP_HTTP11, |
| GRPC_HTTP_HTTP20, |
| } grpc_http_version; |
| |
| typedef enum { |
| GRPC_HTTP_RESPONSE, |
| GRPC_HTTP_REQUEST, |
| } grpc_http_type; |
| |
| /* A request */ |
| typedef struct grpc_http_request { |
| /* Method of the request (e.g. GET, POST) */ |
| char *method; |
| /* The path of the resource to fetch */ |
| char *path; |
| /* HTTP version to use */ |
| grpc_http_version version; |
| /* Headers attached to the request */ |
| size_t hdr_count; |
| grpc_http_header *hdrs; |
| /* Body: length and contents; contents are NOT null-terminated */ |
| size_t body_length; |
| char *body; |
| } grpc_http_request; |
| |
| /* A response */ |
| typedef struct grpc_http_response { |
| /* HTTP status code */ |
| int status; |
| /* Headers: count and key/values */ |
| size_t hdr_count; |
| grpc_http_header *hdrs; |
| /* Body: length and contents; contents are NOT null-terminated */ |
| size_t body_length; |
| char *body; |
| } grpc_http_response; |
| |
| typedef struct { |
| grpc_http_parser_state state; |
| grpc_http_type type; |
| |
| union { |
| grpc_http_response *response; |
| grpc_http_request *request; |
| void *request_or_response; |
| } http; |
| size_t body_capacity; |
| size_t hdr_capacity; |
| |
| uint8_t cur_line[GRPC_HTTP_PARSER_MAX_HEADER_LENGTH]; |
| size_t cur_line_length; |
| size_t cur_line_end_length; |
| } grpc_http_parser; |
| |
| void grpc_http_parser_init(grpc_http_parser *parser, grpc_http_type type, |
| void *request_or_response); |
| void grpc_http_parser_destroy(grpc_http_parser *parser); |
| |
| /* Sets \a start_of_body to the offset in \a slice of the start of the body. */ |
| grpc_error *grpc_http_parser_parse(grpc_http_parser *parser, grpc_slice slice, |
| size_t *start_of_body); |
| grpc_error *grpc_http_parser_eof(grpc_http_parser *parser); |
| |
| void grpc_http_request_destroy(grpc_http_request *request); |
| void grpc_http_response_destroy(grpc_http_response *response); |
| |
| extern grpc_tracer_flag grpc_http1_trace; |
| |
| #endif /* GRPC_CORE_LIB_HTTP_PARSER_H */ |