Matthew Iselin | 1824f05 | 2016-02-10 12:16:06 +1100 | [diff] [blame] | 1 | /* |
| 2 | * |
Craig Tiller | 6169d5f | 2016-03-31 07:46:18 -0700 | [diff] [blame] | 3 | * Copyright 2015, Google Inc. |
Matthew Iselin | 1824f05 | 2016-02-10 12:16:06 +1100 | [diff] [blame] | 4 | * All rights reserved. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions are |
| 8 | * met: |
| 9 | * |
| 10 | * * Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * * Redistributions in binary form must reproduce the above |
| 13 | * copyright notice, this list of conditions and the following disclaimer |
| 14 | * in the documentation and/or other materials provided with the |
| 15 | * distribution. |
| 16 | * * Neither the name of Google Inc. nor the names of its |
| 17 | * contributors may be used to endorse or promote products derived from |
| 18 | * this software without specific prior written permission. |
| 19 | * |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 21 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 24 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 25 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 26 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 27 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 28 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 30 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | * |
| 32 | */ |
| 33 | |
Craig Tiller | 9a4dddd | 2016-03-25 17:08:13 -0700 | [diff] [blame] | 34 | #ifndef GRPC_CORE_LIB_HTTP_PARSER_H |
| 35 | #define GRPC_CORE_LIB_HTTP_PARSER_H |
Matthew Iselin | 1824f05 | 2016-02-10 12:16:06 +1100 | [diff] [blame] | 36 | |
| 37 | #include <grpc/support/port_platform.h> |
| 38 | #include <grpc/support/slice.h> |
| 39 | |
| 40 | /* Maximum length of a header string of the form 'Key: Value\r\n' */ |
| 41 | #define GRPC_HTTP_PARSER_MAX_HEADER_LENGTH 4096 |
| 42 | |
| 43 | /* A single header to be passed in a request */ |
| 44 | typedef struct grpc_http_header { |
| 45 | char *key; |
| 46 | char *value; |
| 47 | } grpc_http_header; |
| 48 | |
| 49 | typedef enum { |
| 50 | GRPC_HTTP_FIRST_LINE, |
| 51 | GRPC_HTTP_HEADERS, |
| 52 | GRPC_HTTP_BODY |
| 53 | } grpc_http_parser_state; |
| 54 | |
| 55 | typedef enum { |
| 56 | GRPC_HTTP_HTTP10, |
| 57 | GRPC_HTTP_HTTP11, |
| 58 | GRPC_HTTP_HTTP20, |
| 59 | } grpc_http_version; |
| 60 | |
| 61 | typedef enum { |
| 62 | GRPC_HTTP_RESPONSE, |
| 63 | GRPC_HTTP_REQUEST, |
| 64 | GRPC_HTTP_UNKNOWN |
| 65 | } grpc_http_type; |
| 66 | |
| 67 | /* A request */ |
| 68 | typedef struct grpc_http_request { |
| 69 | /* Method of the request (e.g. GET, POST) */ |
| 70 | char *method; |
| 71 | /* The path of the resource to fetch */ |
| 72 | char *path; |
| 73 | /* HTTP version to use */ |
| 74 | grpc_http_version version; |
| 75 | /* Headers attached to the request */ |
| 76 | size_t hdr_count; |
| 77 | grpc_http_header *hdrs; |
| 78 | /* Body: length and contents; contents are NOT null-terminated */ |
| 79 | size_t body_length; |
| 80 | char *body; |
| 81 | } grpc_http_request; |
| 82 | |
| 83 | /* A response */ |
| 84 | typedef struct grpc_http_response { |
| 85 | /* HTTP status code */ |
| 86 | int status; |
| 87 | /* Headers: count and key/values */ |
| 88 | size_t hdr_count; |
| 89 | grpc_http_header *hdrs; |
| 90 | /* Body: length and contents; contents are NOT null-terminated */ |
| 91 | size_t body_length; |
| 92 | char *body; |
| 93 | } grpc_http_response; |
| 94 | |
| 95 | typedef struct { |
| 96 | grpc_http_parser_state state; |
| 97 | grpc_http_type type; |
| 98 | |
| 99 | union { |
| 100 | grpc_http_response response; |
| 101 | grpc_http_request request; |
| 102 | } http; |
| 103 | size_t body_capacity; |
| 104 | size_t hdr_capacity; |
| 105 | |
| 106 | uint8_t cur_line[GRPC_HTTP_PARSER_MAX_HEADER_LENGTH]; |
| 107 | size_t cur_line_length; |
| 108 | } grpc_http_parser; |
| 109 | |
| 110 | void grpc_http_parser_init(grpc_http_parser *parser); |
| 111 | void grpc_http_parser_destroy(grpc_http_parser *parser); |
| 112 | |
| 113 | int grpc_http_parser_parse(grpc_http_parser *parser, gpr_slice slice); |
| 114 | int grpc_http_parser_eof(grpc_http_parser *parser); |
| 115 | |
Craig Tiller | 9a4dddd | 2016-03-25 17:08:13 -0700 | [diff] [blame] | 116 | #endif /* GRPC_CORE_LIB_HTTP_PARSER_H */ |