Avnet » Code » http-example-wnc

Demonstration program with support for the WNC M14A2A Cellular LTE Data Module added. An additional demonstration program was also added that shows a few other features (for chunked responses).

Dependencies: easy-connect mbed-http

mbed-os-example-http(s) using WNC 14A2A Data Module

This application builds on the application provided by ARM (see https://developer.mbed.org/teams/sandbox/code/mbed-http/). It demonstrates how to make HTTP and HTTPS requests and parse the response from mbed OS 5.

There are a total of five demo's, which can be selected by modifying source/select-demo.h.

1. HTTP demo (DEMO_HTTP):

Does a GET request to http://httpbin.org/status/418.
Does a POST request to http://httpbin.org/post.

2. HTTPS demo (DEMO_HTTPS):

Does a GET request to https://developer.mbed.org/media/uploads/mbed_official/hello.txt.
Does a POST request to https://httpbin.org/post.

3. HTTP demo with socket re-use (DEMO_HTTP_SOCKET_REUSE).

Similar to the HTTP demo but reuses the socket for all interactions

4. HTTPS demo with socket re-use (DEMO_HTTPS_SOCKET_REUSE).

Similar to the HTTPS demo above

5. HTTP & HTTPS demo with socket re-use and chunked call-backs (DEMO_HTTPx)

Performs the same calls via HTTP first and HTTPS second
DOES A socket get from http://developer.mbed.org.
Does a HTTP_GET from http://developer.mbed.org
Does a HTTP_POST from http://httpbin.org/post
Does a HTTP_PUT from http://httpbin.org/put
Does a HTTP_DELETE from http://httpbin.org/delete
Does a HTTP_GET from http://httpbin.org/stream
Does a HTTP_GET from http://httpbin.org/get

Response parsing is done through [nodejs/http-parser](https://github.com/nodejs/http-parser).

To build

1. Open ``mbed_app.json`` and change the `network-interface` option to your connectivity method ([more info](https://github.com/ARMmbed/easy-connect)). 2. Build the project in the online compiler or using mbed CLI. 3. Flash the project to your development board. 4. Attach a serial monitor to your board to see the debug messages.

Entropy (or lack thereof)

On all platforms except the FRDM-K64F and FRDM-K22F the application is compiled without TLS entropy sources. This means that your code is inherently unsafe and should not be deployed to any production systems. To enable entropy, remove the `MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES` and `MBEDTLS_TEST_NULL_ENTROPY` macros from mbed_app.json.

Tested on

K64F with Ethernet.
NUCLEO_F411RE with ESP8266.
AT&T Cellular IoT Starter Kit with WNC M14A2A Cellular Data Module

The WNCInterface class currently supports the following version(s):

MPSS: M14A2A_v11.50.164451 APSS: M14A2A_v11.53.164451

License

This library is released under the Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License and 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.

source/mbed-http/http_parsed_url.h@1:3bff14db67c7, 2017-02-16 (annotated)

Committer:: Jan Jongboom
Date:: Thu Feb 16 11:13:40 2017 +0100
Revision:: 1:3bff14db67c7

Add mbed-http

Who changed what in which revision?

User	Revision	Line number	New contents of line
Jan Jongboom	1:3bff14db67c7	1	#ifndef _MBED_HTTP_PARSED_URL_H_
Jan Jongboom	1:3bff14db67c7	2	#define _MBED_HTTP_PARSED_URL_H_
Jan Jongboom	1:3bff14db67c7	3
Jan Jongboom	1:3bff14db67c7	4	#include "http_parser.h"
Jan Jongboom	1:3bff14db67c7	5
Jan Jongboom	1:3bff14db67c7	6	class ParsedUrl {
Jan Jongboom	1:3bff14db67c7	7	public:
Jan Jongboom	1:3bff14db67c7	8	ParsedUrl(const char* url) {
Jan Jongboom	1:3bff14db67c7	9	struct http_parser_url parsed_url;
Jan Jongboom	1:3bff14db67c7	10	http_parser_parse_url(url, strlen(url), false, &parsed_url);
Jan Jongboom	1:3bff14db67c7	11
Jan Jongboom	1:3bff14db67c7	12	for (size_t ix = 0; ix < UF_MAX; ix++) {
Jan Jongboom	1:3bff14db67c7	13	const char* value;
Jan Jongboom	1:3bff14db67c7	14	if (parsed_url.field_set & (1 << ix)) {
Jan Jongboom	1:3bff14db67c7	15	value = (const char*)calloc(parsed_url.field_data[ix].len + 1, 1);
Jan Jongboom	1:3bff14db67c7	16	memcpy((void*)value, url + parsed_url.field_data[ix].off,
Jan Jongboom	1:3bff14db67c7	17	parsed_url.field_data[ix].len);
Jan Jongboom	1:3bff14db67c7	18	}
Jan Jongboom	1:3bff14db67c7	19	else {
Jan Jongboom	1:3bff14db67c7	20	value = (const char*)calloc(1, 1);
Jan Jongboom	1:3bff14db67c7	21	}
Jan Jongboom	1:3bff14db67c7	22
Jan Jongboom	1:3bff14db67c7	23	switch ((http_parser_url_fields)ix) {
Jan Jongboom	1:3bff14db67c7	24	case UF_SCHEMA: _schema = value; break;
Jan Jongboom	1:3bff14db67c7	25	case UF_HOST: _host = value; break;
Jan Jongboom	1:3bff14db67c7	26	case UF_PATH: _path = value; break;
Jan Jongboom	1:3bff14db67c7	27	case UF_QUERY: _query = value; break;
Jan Jongboom	1:3bff14db67c7	28	case UF_USERINFO: _userinfo = value; break;
Jan Jongboom	1:3bff14db67c7	29	default:
Jan Jongboom	1:3bff14db67c7	30	// PORT is already parsed, FRAGMENT is not relevant for HTTP requests
Jan Jongboom	1:3bff14db67c7	31	free((void*)value);
Jan Jongboom	1:3bff14db67c7	32	break;
Jan Jongboom	1:3bff14db67c7	33	}
Jan Jongboom	1:3bff14db67c7	34	}
Jan Jongboom	1:3bff14db67c7	35
Jan Jongboom	1:3bff14db67c7	36	_port = parsed_url.port;
Jan Jongboom	1:3bff14db67c7	37	if (!_port) {
Jan Jongboom	1:3bff14db67c7	38	if (strcmp(_schema, "https") == 0) {
Jan Jongboom	1:3bff14db67c7	39	_port = 443;
Jan Jongboom	1:3bff14db67c7	40	}
Jan Jongboom	1:3bff14db67c7	41	else {
Jan Jongboom	1:3bff14db67c7	42	_port = 80;
Jan Jongboom	1:3bff14db67c7	43	}
Jan Jongboom	1:3bff14db67c7	44	}
Jan Jongboom	1:3bff14db67c7	45	}
Jan Jongboom	1:3bff14db67c7	46
Jan Jongboom	1:3bff14db67c7	47	~ParsedUrl() {
Jan Jongboom	1:3bff14db67c7	48	if (_schema) free((void*)_schema);
Jan Jongboom	1:3bff14db67c7	49	if (_host) free((void*)_host);
Jan Jongboom	1:3bff14db67c7	50	if (_path) free((void*)_path);
Jan Jongboom	1:3bff14db67c7	51	if (_query) free((void*)_query);
Jan Jongboom	1:3bff14db67c7	52	if (_userinfo) free((void*)_userinfo);
Jan Jongboom	1:3bff14db67c7	53	}
Jan Jongboom	1:3bff14db67c7	54
Jan Jongboom	1:3bff14db67c7	55	uint16_t port() const { return _port; }
Jan Jongboom	1:3bff14db67c7	56	const char* schema() const { return _schema; }
Jan Jongboom	1:3bff14db67c7	57	const char* host() const { return _host; }
Jan Jongboom	1:3bff14db67c7	58	const char* path() const { return _path; }
Jan Jongboom	1:3bff14db67c7	59	const char* query() const { return _query; }
Jan Jongboom	1:3bff14db67c7	60	const char* userinfo() const { return _userinfo; }
Jan Jongboom	1:3bff14db67c7	61
Jan Jongboom	1:3bff14db67c7	62	private:
Jan Jongboom	1:3bff14db67c7	63	uint16_t _port;
Jan Jongboom	1:3bff14db67c7	64	const char* _schema;
Jan Jongboom	1:3bff14db67c7	65	const char* _host;
Jan Jongboom	1:3bff14db67c7	66	const char* _path;
Jan Jongboom	1:3bff14db67c7	67	const char* _query;
Jan Jongboom	1:3bff14db67c7	68	const char* _userinfo;
Jan Jongboom	1:3bff14db67c7	69	};
Jan Jongboom	1:3bff14db67c7	70
Jan Jongboom	1:3bff14db67c7	71	#endif // _MBED_HTTP_PARSED_URL_H_