Nicolas Mathon / mbed-http

Experimental HTTP and HTTPS library for mbed OS 5

source/http_response.h@4:539df159e058, 2017-02-23 (annotated)

Committer:
Jan Jongboom
Date:
Thu Feb 23 13:50:43 2017 +0100
Revision:
4:539df159e058
Parent:
3:8a6b003e3874
Child:
7:2e3eedb9ca5c
Allocate body on the heap, not on the stack

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Jan Jongboom 0:910f5949759f 1 /*
Jan Jongboom 0:910f5949759f 2 * PackageLicenseDeclared: Apache-2.0
Jan Jongboom 0:910f5949759f 3 * Copyright (c) 2017 ARM Limited
Jan Jongboom 0:910f5949759f 4 *
Jan Jongboom 0:910f5949759f 5 * Licensed under the Apache License, Version 2.0 (the "License");
Jan Jongboom 0:910f5949759f 6 * you may not use this file except in compliance with the License.
Jan Jongboom 0:910f5949759f 7 * You may obtain a copy of the License at
Jan Jongboom 0:910f5949759f 8 *
Jan Jongboom 0:910f5949759f 9 * http://www.apache.org/licenses/LICENSE-2.0
Jan Jongboom 0:910f5949759f 10 *
Jan Jongboom 0:910f5949759f 11 * Unless required by applicable law or agreed to in writing, software
Jan Jongboom 0:910f5949759f 12 * distributed under the License is distributed on an "AS IS" BASIS,
Jan Jongboom 0:910f5949759f 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Jan Jongboom 0:910f5949759f 14 * See the License for the specific language governing permissions and
Jan Jongboom 0:910f5949759f 15 * limitations under the License.
Jan Jongboom 0:910f5949759f 16 */
Jan Jongboom 0:910f5949759f 17
Jan Jongboom 0:910f5949759f 18 #ifndef _MBED_HTTP_HTTP_RESPONSE
Jan Jongboom 0:910f5949759f 19 #define _MBED_HTTP_HTTP_RESPONSE
Jan Jongboom 0:910f5949759f 20 #include <string>
Jan Jongboom 0:910f5949759f 21 #include <vector>
Jan Jongboom 0:910f5949759f 22 #include "http_parser.h"
Jan Jongboom 0:910f5949759f 23
Jan Jongboom 0:910f5949759f 24 using namespace std;
Jan Jongboom 0:910f5949759f 25
Jan Jongboom 0:910f5949759f 26 class HttpResponse {
Jan Jongboom 0:910f5949759f 27 public:
Jan Jongboom 0:910f5949759f 28 HttpResponse() {
Jan Jongboom 0:910f5949759f 29 status_code = 0;
Jan Jongboom 0:910f5949759f 30 concat_header_field = false;
Jan Jongboom 0:910f5949759f 31 concat_header_value = false;
Jan Jongboom 3:8a6b003e3874 32 expected_content_length = 0;
Jan Jongboom 3:8a6b003e3874 33 body_length = 0;
Jan Jongboom 4:539df159e058 34 body_offset = 0;
Jan Jongboom 4:539df159e058 35 body = NULL;
Jan Jongboom 4:539df159e058 36 }
Jan Jongboom 4:539df159e058 37
Jan Jongboom 4:539df159e058 38 ~HttpResponse() {
Jan Jongboom 4:539df159e058 39 if (body != NULL) {
Jan Jongboom 4:539df159e058 40 free(body);
Jan Jongboom 4:539df159e058 41 }
Jan Jongboom 0:910f5949759f 42 }
Jan Jongboom 0:910f5949759f 43
Jan Jongboom 0:910f5949759f 44 void set_status(int a_status_code, string a_status_message) {
Jan Jongboom 0:910f5949759f 45 status_code = a_status_code;
Jan Jongboom 0:910f5949759f 46 status_message = a_status_message;
Jan Jongboom 0:910f5949759f 47 }
Jan Jongboom 0:910f5949759f 48
Jan Jongboom 0:910f5949759f 49 int get_status_code() {
Jan Jongboom 0:910f5949759f 50 return status_code;
Jan Jongboom 0:910f5949759f 51 }
Jan Jongboom 0:910f5949759f 52
Jan Jongboom 0:910f5949759f 53 string get_status_message() {
Jan Jongboom 0:910f5949759f 54 return status_message;
Jan Jongboom 0:910f5949759f 55 }
Jan Jongboom 0:910f5949759f 56
Jan Jongboom 0:910f5949759f 57 void set_header_field(string field) {
Jan Jongboom 0:910f5949759f 58 concat_header_value = false;
Jan Jongboom 0:910f5949759f 59
Jan Jongboom 0:910f5949759f 60 // headers can be chunked
Jan Jongboom 0:910f5949759f 61 if (concat_header_field) {
Jan Jongboom 0:910f5949759f 62 header_fields[header_fields.size() - 1] = header_fields[header_fields.size() - 1] + field;
Jan Jongboom 0:910f5949759f 63 }
Jan Jongboom 0:910f5949759f 64 else {
Jan Jongboom 0:910f5949759f 65 header_fields.push_back(field);
Jan Jongboom 0:910f5949759f 66 }
Jan Jongboom 0:910f5949759f 67
Jan Jongboom 0:910f5949759f 68 concat_header_field = true;
Jan Jongboom 0:910f5949759f 69 }
Jan Jongboom 0:910f5949759f 70
Jan Jongboom 0:910f5949759f 71 void set_header_value(string value) {
Jan Jongboom 0:910f5949759f 72 concat_header_field = false;
Jan Jongboom 0:910f5949759f 73
Jan Jongboom 0:910f5949759f 74 // headers can be chunked
Jan Jongboom 0:910f5949759f 75 if (concat_header_value) {
Jan Jongboom 0:910f5949759f 76 header_values[header_values.size() - 1] = header_values[header_values.size() - 1] + value;
Jan Jongboom 0:910f5949759f 77 }
Jan Jongboom 0:910f5949759f 78 else {
Jan Jongboom 0:910f5949759f 79 header_values.push_back(value);
Jan Jongboom 0:910f5949759f 80 }
Jan Jongboom 0:910f5949759f 81
Jan Jongboom 0:910f5949759f 82 concat_header_value = true;
Jan Jongboom 0:910f5949759f 83 }
Jan Jongboom 0:910f5949759f 84
Jan Jongboom 3:8a6b003e3874 85 void set_headers_complete() {
Jan Jongboom 3:8a6b003e3874 86 // @todo: chunked encoding
Jan Jongboom 3:8a6b003e3874 87 for (size_t ix = 0; ix < header_fields.size(); ix++) {
Jan Jongboom 3:8a6b003e3874 88 if (strcicmp(header_fields[ix].c_str(), "content-length") == 0) {
Jan Jongboom 3:8a6b003e3874 89 expected_content_length = (size_t)atoi(header_values[ix].c_str());
Jan Jongboom 3:8a6b003e3874 90 break;
Jan Jongboom 3:8a6b003e3874 91 }
Jan Jongboom 3:8a6b003e3874 92 }
Jan Jongboom 3:8a6b003e3874 93 }
Jan Jongboom 3:8a6b003e3874 94
Jan Jongboom 0:910f5949759f 95 size_t get_headers_length() {
Jan Jongboom 0:910f5949759f 96 return header_fields.size();
Jan Jongboom 0:910f5949759f 97 }
Jan Jongboom 0:910f5949759f 98
Jan Jongboom 0:910f5949759f 99 vector<string> get_headers_fields() {
Jan Jongboom 0:910f5949759f 100 return header_fields;
Jan Jongboom 0:910f5949759f 101 }
Jan Jongboom 0:910f5949759f 102
Jan Jongboom 0:910f5949759f 103 vector<string> get_headers_values() {
Jan Jongboom 0:910f5949759f 104 return header_values;
Jan Jongboom 0:910f5949759f 105 }
Jan Jongboom 0:910f5949759f 106
Jan Jongboom 4:539df159e058 107 void set_body(const char *at, size_t length) {
Jan Jongboom 4:539df159e058 108 // only malloc when this fn is called, so we don't alloc when body callback's are enabled
Jan Jongboom 4:539df159e058 109 if (body == NULL) {
Jan Jongboom 4:539df159e058 110 body = (char*)malloc(expected_content_length);
Jan Jongboom 4:539df159e058 111 }
Jan Jongboom 4:539df159e058 112
Jan Jongboom 4:539df159e058 113 memcpy(body + body_offset, at, length);
Jan Jongboom 4:539df159e058 114
Jan Jongboom 4:539df159e058 115 body_offset += length;
Jan Jongboom 0:910f5949759f 116 }
Jan Jongboom 0:910f5949759f 117
Jan Jongboom 4:539df159e058 118 void* get_body() {
Jan Jongboom 4:539df159e058 119 return (void*)body;
Jan Jongboom 4:539df159e058 120 }
Jan Jongboom 4:539df159e058 121
Jan Jongboom 4:539df159e058 122 string get_body_as_string() {
Jan Jongboom 4:539df159e058 123 string s(body, body_offset);
Jan Jongboom 4:539df159e058 124 return s;
Jan Jongboom 0:910f5949759f 125 }
Jan Jongboom 0:910f5949759f 126
Jan Jongboom 3:8a6b003e3874 127 void increase_body_length(size_t length) {
Jan Jongboom 3:8a6b003e3874 128 body_length += length;
Jan Jongboom 3:8a6b003e3874 129 }
Jan Jongboom 3:8a6b003e3874 130
Jan Jongboom 4:539df159e058 131 size_t get_body_length() {
Jan Jongboom 4:539df159e058 132 return body_offset;
Jan Jongboom 4:539df159e058 133 }
Jan Jongboom 4:539df159e058 134
Jan Jongboom 3:8a6b003e3874 135 bool is_body_complete() {
Jan Jongboom 3:8a6b003e3874 136 return body_length == expected_content_length;
Jan Jongboom 3:8a6b003e3874 137 }
Jan Jongboom 3:8a6b003e3874 138
Jan Jongboom 0:910f5949759f 139 private:
Jan Jongboom 3:8a6b003e3874 140 // from http://stackoverflow.com/questions/5820810/case-insensitive-string-comp-in-c
Jan Jongboom 3:8a6b003e3874 141 int strcicmp(char const *a, char const *b) {
Jan Jongboom 3:8a6b003e3874 142 for (;; a++, b++) {
Jan Jongboom 3:8a6b003e3874 143 int d = tolower(*a) - tolower(*b);
Jan Jongboom 3:8a6b003e3874 144 if (d != 0 || !*a) {
Jan Jongboom 3:8a6b003e3874 145 return d;
Jan Jongboom 3:8a6b003e3874 146 }
Jan Jongboom 3:8a6b003e3874 147 }
Jan Jongboom 3:8a6b003e3874 148 }
Jan Jongboom 3:8a6b003e3874 149
Jan Jongboom 0:910f5949759f 150 int status_code;
Jan Jongboom 0:910f5949759f 151 string status_message;
Jan Jongboom 0:910f5949759f 152
Jan Jongboom 0:910f5949759f 153 vector<string> header_fields;
Jan Jongboom 0:910f5949759f 154 vector<string> header_values;
Jan Jongboom 0:910f5949759f 155
Jan Jongboom 0:910f5949759f 156 bool concat_header_field;
Jan Jongboom 0:910f5949759f 157 bool concat_header_value;
Jan Jongboom 0:910f5949759f 158
Jan Jongboom 3:8a6b003e3874 159 size_t expected_content_length;
Jan Jongboom 3:8a6b003e3874 160
Jan Jongboom 4:539df159e058 161 char * body;
Jan Jongboom 3:8a6b003e3874 162 size_t body_length;
Jan Jongboom 4:539df159e058 163 size_t body_offset;
Jan Jongboom 0:910f5949759f 164 };
Jan Jongboom 0:910f5949759f 165 #endif