| /* |
| * |
| * Copyright 2015, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #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/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 int grpc_http1_trace; |
| |
| #endif /* GRPC_CORE_LIB_HTTP_PARSER_H */ |