Avnet / Mbed 2 deprecated WNCInterface_HTTP_example

This Socket Example Program Implements a TCP Socket, UDP Socket, and HTTPClient socket then uses each of these to perform basic I/O.

Dependencies:   JSON M2XStreamClient-JMF WNCInterface mbed-rtos mbed

See the README for details on this example program. NOTE: When started, the program can take up to 40 seconds before it will respond. This delay is the time required for the WNC Data Module to connect with the network.

main.cpp@1:7634d07c4310, 2016-09-26 (annotated)

Committer:
JMF
Date:
Mon Sep 26 18:32:48 2016 +0000
Revision:
1:7634d07c4310
Parent:
0:50979ffa39b6
Child:
2:8fb99c9f5075
changed the blocking from TRUE to have a 1 second timeout.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
JMF 0:50979ffa39b6 1 /* =====================================================================
JMF 0:50979ffa39b6 2 Copyright © 2016, Avnet (R)
JMF 0:50979ffa39b6 3
JMF 0:50979ffa39b6 4 Contributors:
JMF 0:50979ffa39b6 5 * James M Flynn, www.em.avnet.com
JMF 0:50979ffa39b6 6
JMF 0:50979ffa39b6 7 Licensed under the Apache License, Version 2.0 (the "License");
JMF 0:50979ffa39b6 8 you may not use this file except in compliance with the License.
JMF 0:50979ffa39b6 9 You may obtain a copy of the License at
JMF 0:50979ffa39b6 10
JMF 0:50979ffa39b6 11 http://www.apache.org/licenses/LICENSE-2.0
JMF 0:50979ffa39b6 12
JMF 0:50979ffa39b6 13 Unless required by applicable law or agreed to in writing,
JMF 0:50979ffa39b6 14 software distributed under the License is distributed on an
JMF 0:50979ffa39b6 15 "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
JMF 0:50979ffa39b6 16 either express or implied. See the License for the specific
JMF 0:50979ffa39b6 17 language governing permissions and limitations under the License.
JMF 0:50979ffa39b6 18
JMF 0:50979ffa39b6 19 @file WNCInterface.cpp
JMF 0:50979ffa39b6 20 @version 1.0
JMF 0:50979ffa39b6 21 @date Sept 2016
JMF 0:50979ffa39b6 22
JMF 0:50979ffa39b6 23 ======================================================================== */
JMF 0:50979ffa39b6 24
JMF 0:50979ffa39b6 25 #include "mbed.h"
JMF 0:50979ffa39b6 26 #include "WNCInterface.h"
JMF 0:50979ffa39b6 27
JMF 0:50979ffa39b6 28 #include "Socket/Socket.h"
JMF 0:50979ffa39b6 29 #include "Socket/TCPSocketConnection.h"
JMF 0:50979ffa39b6 30 #include "Socket/UDPSocket.h"
JMF 0:50979ffa39b6 31
JMF 0:50979ffa39b6 32 #define DEBUG
JMF 0:50979ffa39b6 33 #define MBED_PLATFORM
JMF 0:50979ffa39b6 34 #include "HTTPClient.h"
JMF 0:50979ffa39b6 35
JMF 0:50979ffa39b6 36 #define CRLF "\n\r"
JMF 0:50979ffa39b6 37
JMF 0:50979ffa39b6 38 #define ntohl(n) ((n & 0xff) << 24) |\
JMF 0:50979ffa39b6 39 ((n & 0xff00) << 8) |\
JMF 0:50979ffa39b6 40 ((n & 0xff0000UL) >> 8) |\
JMF 0:50979ffa39b6 41 ((n & 0xff000000UL) >> 24)
JMF 0:50979ffa39b6 42
JMF 0:50979ffa39b6 43 int main() {
JMF 0:50979ffa39b6 44 int ret;
JMF 0:50979ffa39b6 45 WNCInterface wnc;
JMF 0:50979ffa39b6 46 printf("STARTING WNCInterface & Socket Test" CRLF);
JMF 0:50979ffa39b6 47
JMF 0:50979ffa39b6 48 ret = wnc.init();
JMF 0:50979ffa39b6 49 printf("WNC Module %s initialized (%02X)." CRLF, ret?"IS":"IS NOT", ret);
JMF 0:50979ffa39b6 50 if( !ret ) {
JMF 0:50979ffa39b6 51 printf(" - - - - - - - ALL DONE - - - - - - - " CRLF);
JMF 0:50979ffa39b6 52 while(1);
JMF 0:50979ffa39b6 53 }
JMF 0:50979ffa39b6 54
JMF 0:50979ffa39b6 55 ret = wnc.connect();
JMF 0:50979ffa39b6 56 printf("IP Address: %s " CRLF CRLF, wnc.getIPAddress());
JMF 0:50979ffa39b6 57 //
JMF 0:50979ffa39b6 58 //demonstrate a TCP connection
JMF 0:50979ffa39b6 59 //
JMF 0:50979ffa39b6 60 TCPSocketConnection tsock;
JMF 0:50979ffa39b6 61 printf("\n\n\n\n------------------------------------" CRLF "starting TCP Socket Test..." CRLF);
JMF 0:50979ffa39b6 62
JMF 0:50979ffa39b6 63 tsock.connect("mbed.org", 80);
JMF 0:50979ffa39b6 64 printf("Connected!" CRLF );
JMF 0:50979ffa39b6 65 char http_cmd[] = "GET /media/uploads/mbed_official/hello.txt HTTP/1.0\n\n";
JMF 0:50979ffa39b6 66 ret=tsock.send_all(http_cmd, sizeof(http_cmd)-1);
JMF 0:50979ffa39b6 67 printf("TCP Socket sent %d bytes.\r\n",ret);
JMF 0:50979ffa39b6 68 char buffer[1500];
JMF 0:50979ffa39b6 69
JMF 0:50979ffa39b6 70 tsock.set_blocking (false, 1000);
JMF 0:50979ffa39b6 71 while (ret>0) {
JMF 0:50979ffa39b6 72 ret = tsock.receive(buffer, sizeof(buffer)-1);
JMF 0:50979ffa39b6 73 buffer[ret] = '\0';
JMF 0:50979ffa39b6 74 if( ret > 0 )
JMF 0:50979ffa39b6 75 printf("Received %d chars from server:" CRLF "<----->" CRLF "%s" CRLF
JMF 0:50979ffa39b6 76 "<----->" CRLF, ret, buffer);
JMF 0:50979ffa39b6 77 }
JMF 0:50979ffa39b6 78 tsock.close();
JMF 0:50979ffa39b6 79
JMF 0:50979ffa39b6 80 //
JMF 0:50979ffa39b6 81 //demonstrate a UDP connection
JMF 0:50979ffa39b6 82 //
JMF 0:50979ffa39b6 83 printf("\n\n\n\n-------------------------------------" CRLF);
JMF 0:50979ffa39b6 84 printf( "starting UDP Socket Test..." CRLF);
JMF 0:50979ffa39b6 85
JMF 0:50979ffa39b6 86 //#define UDP_URL "utcnist.colorado.edu"
JMF 0:50979ffa39b6 87 //#define UDP_PORT 37
JMF 0:50979ffa39b6 88 #define UDP_URL "pool.ntp.org"
JMF 0:50979ffa39b6 89 #define UDP_PORT 123
JMF 0:50979ffa39b6 90
JMF 0:50979ffa39b6 91 UDPSocket usock;
JMF 0:50979ffa39b6 92 usock.init();
JMF 0:50979ffa39b6 93 Endpoint nist;
JMF 0:50979ffa39b6 94
JMF 0:50979ffa39b6 95 nist.set_address(UDP_URL, UDP_PORT);
JMF 0:50979ffa39b6 96 printf("Endpoing set to '%s'/%s/%d, try sending data." CRLF,
JMF 0:50979ffa39b6 97 UDP_URL, nist.get_address(), nist.get_port());
JMF 0:50979ffa39b6 98
JMF 0:50979ffa39b6 99 // char out_buffer[] = "plop"; // Does not matter
JMF 0:50979ffa39b6 100
JMF 0:50979ffa39b6 101 char out_buffer[48];
JMF 0:50979ffa39b6 102 out_buffer[0] = 0xE3; // LI, Version, Mode
JMF 0:50979ffa39b6 103 out_buffer[1] = 0; // Stratum, or type of clock
JMF 0:50979ffa39b6 104 out_buffer[2] = 6; // Polling Interval
JMF 0:50979ffa39b6 105 out_buffer[3] = 0xEC; // Peer Clock Precision
JMF 0:50979ffa39b6 106 // 8 bytes of zero for Root Delay & Root Dispersion
JMF 0:50979ffa39b6 107 out_buffer[12] = 49;
JMF 0:50979ffa39b6 108 out_buffer[13] = 0x4E;
JMF 0:50979ffa39b6 109 out_buffer[14] = 49;
JMF 0:50979ffa39b6 110 out_buffer[15] = 52;
JMF 0:50979ffa39b6 111
JMF 0:50979ffa39b6 112 ret = usock.sendTo(nist, out_buffer, sizeof(out_buffer));
JMF 0:50979ffa39b6 113 printf("sent buffer to UDP IP/Port (ret=%d)" CRLF "Now try receiving." CRLF,ret);
JMF 0:50979ffa39b6 114
JMF 0:50979ffa39b6 115
JMF 1:7634d07c4310 116 usock.set_blocking (false, 1000);
JMF 0:50979ffa39b6 117 char in_buffer[50];
JMF 0:50979ffa39b6 118 int n = usock.receiveFrom(nist, in_buffer, sizeof(in_buffer));
JMF 0:50979ffa39b6 119
JMF 0:50979ffa39b6 120 printf("Received %d bytes via UDP IP address %s on port %d." CRLF,
JMF 0:50979ffa39b6 121 n, nist.get_address(), nist.get_port());
JMF 0:50979ffa39b6 122
JMF 0:50979ffa39b6 123 usock.close();
JMF 0:50979ffa39b6 124
JMF 0:50979ffa39b6 125 //
JMF 0:50979ffa39b6 126 //demonstrate HTTPClient operations
JMF 0:50979ffa39b6 127 //
JMF 0:50979ffa39b6 128 HTTPClient http;
JMF 0:50979ffa39b6 129 char str[512];
JMF 0:50979ffa39b6 130
JMF 0:50979ffa39b6 131 printf("\n\n\n\n-------------------------------------" CRLF);
JMF 0:50979ffa39b6 132 printf( "starting HTTPClient Socket Test..." CRLF);
JMF 0:50979ffa39b6 133
JMF 0:50979ffa39b6 134 //GET data
JMF 0:50979ffa39b6 135 printf(">>>>Fetch a page..." CRLF);
JMF 0:50979ffa39b6 136
JMF 0:50979ffa39b6 137 ret = http.get("http://developer.mbed.org/media/uploads/mbed_official/hello.txt", str, strlen(str));
JMF 0:50979ffa39b6 138 if (!ret)
JMF 0:50979ffa39b6 139 {
JMF 0:50979ffa39b6 140 printf("Page fetched successfully - read %d characters" CRLF, strlen(str));
JMF 0:50979ffa39b6 141 printf("<----->" CRLF "Result: %s" CRLF "<----->" CRLF, str);
JMF 0:50979ffa39b6 142 }
JMF 0:50979ffa39b6 143 else
JMF 0:50979ffa39b6 144 {
JMF 0:50979ffa39b6 145 printf("Error - ret = %d - HTTP return code = %d" CRLF, ret, http.getHTTPResponseCode());
JMF 0:50979ffa39b6 146 }
JMF 0:50979ffa39b6 147
JMF 0:50979ffa39b6 148 //POST data
JMF 0:50979ffa39b6 149 HTTPMap map;
JMF 0:50979ffa39b6 150 HTTPText inText(str, 512);
JMF 0:50979ffa39b6 151 map.put("Hello", "World");
JMF 0:50979ffa39b6 152 map.put("test", "1234");
JMF 0:50979ffa39b6 153
JMF 0:50979ffa39b6 154 printf(CRLF CRLF ">>>>Post data..." CRLF);
JMF 0:50979ffa39b6 155 ret = http.post("http://httpbin.org/post", map, &inText);
JMF 0:50979ffa39b6 156 if (!ret)
JMF 0:50979ffa39b6 157 {
JMF 0:50979ffa39b6 158 printf("Executed POST successfully - read %d characters" CRLF, strlen(str));
JMF 0:50979ffa39b6 159 printf("<----->" CRLF );
JMF 0:50979ffa39b6 160 printf("Result: %s" CRLF "<----->" CRLF, str);
JMF 0:50979ffa39b6 161 }
JMF 0:50979ffa39b6 162 else
JMF 0:50979ffa39b6 163 {
JMF 0:50979ffa39b6 164 printf("Error - ret = %d - HTTP return code = %d" CRLF, ret, http.getHTTPResponseCode());
JMF 0:50979ffa39b6 165 }
JMF 0:50979ffa39b6 166
JMF 0:50979ffa39b6 167 //PUT data
JMF 0:50979ffa39b6 168 strcpy(str, "This is a PUT test!");
JMF 0:50979ffa39b6 169 HTTPText outText(str);
JMF 0:50979ffa39b6 170 printf(CRLF CRLF ">>>>Put data..." CRLF);
JMF 0:50979ffa39b6 171 ret = http.put("http://httpbin.org/put", outText, &inText);
JMF 0:50979ffa39b6 172 if (!ret)
JMF 0:50979ffa39b6 173 {
JMF 0:50979ffa39b6 174 printf("Executed PUT successfully - read %d characters" CRLF, strlen(str));
JMF 0:50979ffa39b6 175 printf("<----->" CRLF );
JMF 0:50979ffa39b6 176 printf("Result: %s" CRLF "<----->" CRLF, str);
JMF 0:50979ffa39b6 177 }
JMF 0:50979ffa39b6 178 else
JMF 0:50979ffa39b6 179 {
JMF 0:50979ffa39b6 180 printf("Error - ret = %d - HTTP return code = %d" CRLF, ret, http.getHTTPResponseCode());
JMF 0:50979ffa39b6 181 }
JMF 0:50979ffa39b6 182
JMF 0:50979ffa39b6 183 //DELETE data
JMF 0:50979ffa39b6 184 printf(CRLF CRLF ">>>>Delete data..." CRLF);
JMF 0:50979ffa39b6 185 ret = http.del("http://httpbin.org/delete", &inText);
JMF 0:50979ffa39b6 186 if (!ret)
JMF 0:50979ffa39b6 187 {
JMF 0:50979ffa39b6 188 printf("Executed DELETE successfully - read %d characters" CRLF, strlen(str));
JMF 0:50979ffa39b6 189 printf("<----->" CRLF );
JMF 0:50979ffa39b6 190 printf("Result: %s" CRLF "<----->" CRLF, str);
JMF 0:50979ffa39b6 191 }
JMF 0:50979ffa39b6 192 else
JMF 0:50979ffa39b6 193 {
JMF 0:50979ffa39b6 194 printf("Error - ret = %d - HTTP return code = %d" CRLF, ret, http.getHTTPResponseCode());
JMF 0:50979ffa39b6 195 }
JMF 0:50979ffa39b6 196
JMF 0:50979ffa39b6 197 wnc.disconnect();
JMF 0:50979ffa39b6 198 printf(" - - - - - - - ALL DONE - - - - - - - " CRLF);
JMF 0:50979ffa39b6 199 while(1) {}
JMF 0:50979ffa39b6 200 }
JMF 0:50979ffa39b6 201