Jan Kamidra / mbed-http

Fork of SandBox's original mbed-http (https://os.mbed.com/teams/sandbox/code/mbed-http/) and update for MbedOS6+ Content of TESTS folder was replaced with basic examples form original SandBox's HelloWorld

source/http_request_builder.h@41:cc1a8c63f159, 2021-05-30 (annotated)

Committer:
JohnnyK
Date:
Sun May 30 19:45:32 2021 +0000
Revision:
41:cc1a8c63f159
Parent:
35:b3ee394d1d2e 
change test program to two basic example from SandBox's helloworld program ofc reworked.

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_REQUEST_BUILDER_H_
Jan Jongboom 0:910f5949759f 19 #define _MBED_HTTP_REQUEST_BUILDER_H_
Jan Jongboom 0:910f5949759f 20
Jan Jongboom 0:910f5949759f 21 #include <string>
Jan Jongboom 0:910f5949759f 22 #include <map>
Jan Jongboom 0:910f5949759f 23 #include "http_parser.h"
Jan Jongboom 0:910f5949759f 24 #include "http_parsed_url.h"
Jan Jongboom 0:910f5949759f 25
Jan Jongboom 0:910f5949759f 26 class HttpRequestBuilder {
Jan Jongboom 0:910f5949759f 27 public:
Jan Jongboom 0:910f5949759f 28 HttpRequestBuilder(http_method a_method, ParsedUrl* a_parsed_url)
Jan Jongboom 0:910f5949759f 29 : method(a_method), parsed_url(a_parsed_url)
Jan Jongboom 0:910f5949759f 30 {
Jan Jongboom 21:fcd2bfd31a39 31 string host(parsed_url->host());
Jan Jongboom 21:fcd2bfd31a39 32
Jan Jongboom 21:fcd2bfd31a39 33 char port_str[10];
Jan Jongboom 21:fcd2bfd31a39 34 sprintf(port_str, ":%d", parsed_url->port());
Jan Jongboom 21:fcd2bfd31a39 35
Jan Jongboom 21:fcd2bfd31a39 36 if (strcmp(parsed_url->schema(), "http") == 0 && parsed_url->port() != 80) {
Jan Jongboom 21:fcd2bfd31a39 37 host += string(port_str);
Jan Jongboom 21:fcd2bfd31a39 38 }
Jan Jongboom 21:fcd2bfd31a39 39 else if (strcmp(parsed_url->schema(), "https") == 0 && parsed_url->port() != 443) {
Jan Jongboom 21:fcd2bfd31a39 40 host += string(port_str);
Jan Jongboom 21:fcd2bfd31a39 41 }
Jan Jongboom 35:b3ee394d1d2e 42 else if (strcmp(parsed_url->schema(), "ws") == 0 && parsed_url->port() != 80) {
Jan Jongboom 35:b3ee394d1d2e 43 host += string(port_str);
Jan Jongboom 35:b3ee394d1d2e 44 }
Jan Jongboom 35:b3ee394d1d2e 45 else if (strcmp(parsed_url->schema(), "wss") == 0 && parsed_url->port() != 443) {
Jan Jongboom 35:b3ee394d1d2e 46 host += string(port_str);
Jan Jongboom 35:b3ee394d1d2e 47 }
Jan Jongboom 21:fcd2bfd31a39 48
Jan Jongboom 21:fcd2bfd31a39 49 set_header("Host", host);
Jan Jongboom 0:910f5949759f 50 }
Jan Jongboom 0:910f5949759f 51
Jan Jongboom 0:910f5949759f 52 /**
Jan Jongboom 0:910f5949759f 53 * Set a header for the request
Jan Jongboom 0:910f5949759f 54 * If the key already exists, it will be overwritten...
Jan Jongboom 0:910f5949759f 55 */
Jan Jongboom 0:910f5949759f 56 void set_header(string key, string value) {
Jan Jongboom 0:910f5949759f 57 map<string, string>::iterator it = headers.find(key);
Jan Jongboom 0:910f5949759f 58
Jan Jongboom 0:910f5949759f 59 if (it != headers.end()) {
Jan Jongboom 0:910f5949759f 60 it->second = value;
Jan Jongboom 0:910f5949759f 61 }
Jan Jongboom 0:910f5949759f 62 else {
Jan Jongboom 0:910f5949759f 63 headers.insert(headers.end(), pair<string, string>(key, value));
Jan Jongboom 0:910f5949759f 64 }
Jan Jongboom 0:910f5949759f 65 }
Jan Jongboom 0:910f5949759f 66
Jan Jongboom 31:b3730a2c4f39 67 char* build(const void* body, uint32_t body_size, uint32_t &size, bool skip_content_length = false) {
Jan Jongboom 0:910f5949759f 68 const char* method_str = http_method_str(method);
Jan Jongboom 0:910f5949759f 69
Jan Jongboom 23:15fa2726f793 70 bool is_chunked = has_header("Transfer-Encoding", "chunked");
Jan Jongboom 23:15fa2726f793 71
Jan Jongboom 23:15fa2726f793 72 if (!is_chunked && (method == HTTP_POST || method == HTTP_PUT || method == HTTP_DELETE || body_size > 0)) {
Jan Jongboom 0:910f5949759f 73 char buffer[10];
Jan Jongboom 31:b3730a2c4f39 74 snprintf(buffer, 10, "%lu", body_size);
Jan Jongboom 0:910f5949759f 75 set_header("Content-Length", string(buffer));
Jan Jongboom 0:910f5949759f 76 }
Jan Jongboom 0:910f5949759f 77
Jan Jongboom 10:b017c7d2cf23 78 size = 0;
Jan Jongboom 0:910f5949759f 79
Jan Jongboom 0:910f5949759f 80 // first line is METHOD PATH+QUERY HTTP/1.1\r\n
Jan Jongboom 10:b017c7d2cf23 81 size += strlen(method_str) + 1 + strlen(parsed_url->path()) + (strlen(parsed_url->query()) ? strlen(parsed_url->query()) + 1 : 0) + 1 + 8 + 2;
Jan Jongboom 0:910f5949759f 82
Jan Jongboom 0:910f5949759f 83 // after that we'll do the headers
Jan Jongboom 0:910f5949759f 84 typedef map<string, string>::iterator it_type;
Jan Jongboom 0:910f5949759f 85 for(it_type it = headers.begin(); it != headers.end(); it++) {
Jan Jongboom 0:910f5949759f 86 // line is KEY: VALUE\r\n
Jan Jongboom 0:910f5949759f 87 size += it->first.length() + 1 + 1 + it->second.length() + 2;
Jan Jongboom 0:910f5949759f 88 }
Jan Jongboom 0:910f5949759f 89
Jan Jongboom 0:910f5949759f 90 // then the body, first an extra newline
Jan Jongboom 0:910f5949759f 91 size += 2;
Jan Jongboom 0:910f5949759f 92
Jan Jongboom 23:15fa2726f793 93 if (!is_chunked) {
Jan Jongboom 23:15fa2726f793 94 // body
Jan Jongboom 23:15fa2726f793 95 size += body_size;
Jan Jongboom 23:15fa2726f793 96 }
Jan Jongboom 0:910f5949759f 97
Jan Jongboom 0:910f5949759f 98 // Now let's print it
Jan Jongboom 0:910f5949759f 99 char* req = (char*)calloc(size + 1, 1);
Jan Jongboom 0:910f5949759f 100 char* originalReq = req;
Jan Jongboom 0:910f5949759f 101
Jan Jongboom 10:b017c7d2cf23 102 if (strlen(parsed_url->query())) {
Jan Jongboom 10:b017c7d2cf23 103 sprintf(req, "%s %s?%s HTTP/1.1\r\n", method_str, parsed_url->path(), parsed_url->query());
Jan Jongboom 10:b017c7d2cf23 104 } else {
Jan Jongboom 10:b017c7d2cf23 105 sprintf(req, "%s %s%s HTTP/1.1\r\n", method_str, parsed_url->path(), parsed_url->query());
Jan Jongboom 7:2e3eedb9ca5c 106 }
Jan Jongboom 10:b017c7d2cf23 107 req += strlen(method_str) + 1 + strlen(parsed_url->path()) + (strlen(parsed_url->query()) ? strlen(parsed_url->query()) + 1 : 0) + 1 + 8 + 2;
Jan Jongboom 0:910f5949759f 108
Jan Jongboom 0:910f5949759f 109 typedef map<string, string>::iterator it_type;
Jan Jongboom 0:910f5949759f 110 for(it_type it = headers.begin(); it != headers.end(); it++) {
Jan Jongboom 0:910f5949759f 111 // line is KEY: VALUE\r\n
Jan Jongboom 0:910f5949759f 112 sprintf(req, "%s: %s\r\n", it->first.c_str(), it->second.c_str());
Jan Jongboom 0:910f5949759f 113 req += it->first.length() + 1 + 1 + it->second.length() + 2;
Jan Jongboom 0:910f5949759f 114 }
Jan Jongboom 0:910f5949759f 115
Jan Jongboom 0:910f5949759f 116 sprintf(req, "\r\n");
Jan Jongboom 0:910f5949759f 117 req += 2;
Jan Jongboom 0:910f5949759f 118
Jan Jongboom 0:910f5949759f 119 if (body_size > 0) {
Jan Jongboom 10:b017c7d2cf23 120 memcpy(req, body, body_size);
Jan Jongboom 0:910f5949759f 121 }
Jan Jongboom 0:910f5949759f 122 req += body_size;
Jan Jongboom 0:910f5949759f 123
Jan Jongboom 0:910f5949759f 124 // Uncomment to debug...
Jan Jongboom 0:910f5949759f 125 // printf("----- BEGIN REQUEST -----\n");
Jan Jongboom 0:910f5949759f 126 // printf("%s", originalReq);
Jan Jongboom 0:910f5949759f 127 // printf("----- END REQUEST -----\n");
Jan Jongboom 0:910f5949759f 128
Jan Jongboom 0:910f5949759f 129 return originalReq;
Jan Jongboom 0:910f5949759f 130 }
Jan Jongboom 0:910f5949759f 131
Jan Jongboom 0:910f5949759f 132 private:
Jan Jongboom 23:15fa2726f793 133 bool has_header(const char* key, const char* value = NULL) {
Jan Jongboom 23:15fa2726f793 134 typedef map<string, string>::iterator it_type;
Jan Jongboom 23:15fa2726f793 135 for(it_type it = headers.begin(); it != headers.end(); it++) {
Jan Jongboom 23:15fa2726f793 136 if (strcmp(it->first.c_str(), key) == 0) { // key matches
Jan Jongboom 23:15fa2726f793 137 if (value == NULL || (strcmp(it->second.c_str(), value) == 0)) { // value is NULL or matches
Jan Jongboom 23:15fa2726f793 138 return true;
Jan Jongboom 23:15fa2726f793 139 }
Jan Jongboom 23:15fa2726f793 140 }
Jan Jongboom 23:15fa2726f793 141 }
Jan Jongboom 23:15fa2726f793 142
Jan Jongboom 23:15fa2726f793 143 return false;
Jan Jongboom 23:15fa2726f793 144 }
Jan Jongboom 23:15fa2726f793 145
Jan Jongboom 0:910f5949759f 146 http_method method;
Jan Jongboom 0:910f5949759f 147 ParsedUrl* parsed_url;
Jan Jongboom 0:910f5949759f 148 map<string, string> headers;
Jan Jongboom 0:910f5949759f 149 };
Jan Jongboom 0:910f5949759f 150
Jan Jongboom 0:910f5949759f 151 #endif // _MBED_HTTP_REQUEST_BUILDER_H_