Christopher Foley / Mbed OS ESE519_WIFI_CONTROLLER

a

Fork of ESE519_Lab6_part1_skeleton by Carter Sharer

wifiGETWrapper.cpp@12:ea030e3181d3, 2019-11-01 (annotated)

Committer:
hydroguy45
Date:
Fri Nov 01 18:52:45 2019 +0000
Revision:
12:ea030e3181d3
Parent:
9:b8801ba7d7c2 
Cleaned up the header

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hydroguy45 7:ca226305d28b 1 /* WiFi Example
hydroguy45 7:ca226305d28b 2 * Copyright (c) 2016 ARM Limited
hydroguy45 7:ca226305d28b 3 *
hydroguy45 7:ca226305d28b 4 * Licensed under the Apache License, Version 2.0 (the "License");
hydroguy45 7:ca226305d28b 5 * you may not use this file except in compliance with the License.
hydroguy45 7:ca226305d28b 6 * You may obtain a copy of the License at
hydroguy45 7:ca226305d28b 7 *
hydroguy45 7:ca226305d28b 8 * http://www.apache.org/licenses/LICENSE-2.0
hydroguy45 7:ca226305d28b 9 *
hydroguy45 7:ca226305d28b 10 * Unless required by applicable law or agreed to in writing, software
hydroguy45 7:ca226305d28b 11 * distributed under the License is distributed on an "AS IS" BASIS,
hydroguy45 7:ca226305d28b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
hydroguy45 7:ca226305d28b 13 * See the License for the specific language governing permissions and
hydroguy45 7:ca226305d28b 14 * limitations under the License.
hydroguy45 7:ca226305d28b 15 */
hydroguy45 7:ca226305d28b 16 //#include "EthernetInterface.h"
hydroguy45 7:ca226305d28b 17 #include "wifiGETWrapper.h"
hydroguy45 7:ca226305d28b 18 #include "mbed.h"
hydroguy45 7:ca226305d28b 19 #include "TCPSocket.h"
hydroguy45 7:ca226305d28b 20
hydroguy45 7:ca226305d28b 21 #define WIFI_SSID "Hydroguy45"
hydroguy45 7:ca226305d28b 22 #define WIFI_PASSWORD "segfault"
hydroguy45 9:b8801ba7d7c2 23 #define PORT 8081
hydroguy45 7:ca226305d28b 24
hydroguy45 7:ca226305d28b 25 ESP8266Interface wifi(p13, p14);
hydroguy45 7:ca226305d28b 26 /*void startHTTPServer(ESP8266Interface * wifi){
hydroguy45 7:ca226305d28b 27 printf("Starting HTTP server");
hydroguy45 7:ca226305d28b 28 TCPServer server;
hydroguy45 7:ca226305d28b 29 server.open(wifi);
hydroguy45 7:ca226305d28b 30 server.bind(wifi->get_ip_address(),PORT);
hydroguy45 7:ca226305d28b 31 server.listen();
hydroguy45 7:ca226305d28b 32 while(true){
hydroguy45 7:ca226305d28b 33 SocketAddress addr;
hydroguy45 7:ca226305d28b 34 TCPSocket client;
hydroguy45 7:ca226305d28b 35 printf("\n\n\r***Waiting for a socket connection***\n\n\r");
hydroguy45 7:ca226305d28b 36 int err = server.accept(&client, &addr);
hydroguy45 7:ca226305d28b 37 if(err < 0){
hydroguy45 7:ca226305d28b 38 printf("Ran into an error %d", err);
hydroguy45 7:ca226305d28b 39 break;
hydroguy45 7:ca226305d28b 40 }
hydroguy45 7:ca226305d28b 41 printf("----------------\n\rConnection created with %s%d\n\r", addr.get_ip_address(), addr.get_port());
hydroguy45 7:ca226305d28b 42 client.set_blocking(true);
hydroguy45 7:ca226305d28b 43 client.set_timeout(1500);
hydroguy45 7:ca226305d28b 44 char buff[256];
hydroguy45 7:ca226305d28b 45 while (true){
hydroguy45 7:ca226305d28b 46 int n=client.recv(buff, sizeof(buff));
hydroguy45 7:ca226305d28b 47 if(n<=0) break;
hydroguy45 7:ca226305d28b 48 buff[n] = '\0';
hydroguy45 7:ca226305d28b 49 printf("Received from client: %s\n", buff);
hydroguy45 7:ca226305d28b 50 client.send(buff, n);
hydroguy45 7:ca226305d28b 51 printf("%s\n",buff);
hydroguy45 7:ca226305d28b 52 if( n<=0)break;
hydroguy45 7:ca226305d28b 53 }
hydroguy45 7:ca226305d28b 54 client.close();
hydroguy45 7:ca226305d28b 55 printf("Connection Terminated\n\r--------------------\n\n\r");
hydroguy45 7:ca226305d28b 56 }
hydroguy45 7:ca226305d28b 57 server.close();
hydroguy45 7:ca226305d28b 58
hydroguy45 7:ca226305d28b 59 TCPSocketServer server;
hydroguy45 7:ca226305d28b 60
hydroguy45 7:ca226305d28b 61 server.listen();
hydroguy45 7:ca226305d28b 62 while(true){
hydroguy45 7:ca226305d28b 63 TCPSocketConnection connection;
hydroguy45 7:ca226305d28b 64 server.accept(connection);
hydroguy45 7:ca226305d28b 65 connection.set_blocking(false, 1500);
hydroguy45 7:ca226305d28b 66 printf("Connection from %s\n", connection.get_address());
hydroguy45 7:ca226305d28b 67 char buff[256];
hydroguy45 7:ca226305d28b 68 while (true){
hydroguy45 7:ca226305d28b 69 int n=client.receive(buff, sizeof(buff));
hydroguy45 7:ca226305d28b 70 if(n<=0) break;
hydroguy45 7:ca226305d28b 71 buff[n] = '\0';
hydroguy45 7:ca226305d28b 72 printf("Received from client: %s\n", buff);
hydroguy45 7:ca226305d28b 73 client.send_all(buffer, n);
hydroguy45 7:ca226305d28b 74 if( n<=0)break;
hydroguy45 7:ca226305d28b 75 }
hydroguy45 7:ca226305d28b 76 client.close()
hydroguy45 7:ca226305d28b 77 }
hydroguy45 7:ca226305d28b 78 server.close();
hydroguy45 7:ca226305d28b 79 }*/
hydroguy45 7:ca226305d28b 80 const char *sec2str(nsapi_security_t sec)
hydroguy45 7:ca226305d28b 81 {
hydroguy45 7:ca226305d28b 82 switch (sec) {
hydroguy45 7:ca226305d28b 83 case NSAPI_SECURITY_NONE:
hydroguy45 7:ca226305d28b 84 return "None";
hydroguy45 7:ca226305d28b 85 case NSAPI_SECURITY_WEP:
hydroguy45 7:ca226305d28b 86 return "WEP";
hydroguy45 7:ca226305d28b 87 case NSAPI_SECURITY_WPA:
hydroguy45 7:ca226305d28b 88 return "WPA";
hydroguy45 7:ca226305d28b 89 case NSAPI_SECURITY_WPA2:
hydroguy45 7:ca226305d28b 90 return "WPA2";
hydroguy45 7:ca226305d28b 91 case NSAPI_SECURITY_WPA_WPA2:
hydroguy45 7:ca226305d28b 92 return "WPA/WPA2";
hydroguy45 7:ca226305d28b 93 case NSAPI_SECURITY_UNKNOWN:
hydroguy45 7:ca226305d28b 94 default:
hydroguy45 7:ca226305d28b 95 return "Unknown";
hydroguy45 7:ca226305d28b 96 }
hydroguy45 7:ca226305d28b 97 }
hydroguy45 7:ca226305d28b 98
hydroguy45 7:ca226305d28b 99 void scan_demo(WiFiInterface *wifi)
hydroguy45 7:ca226305d28b 100 {
hydroguy45 7:ca226305d28b 101 WiFiAccessPoint *ap;
hydroguy45 7:ca226305d28b 102
hydroguy45 7:ca226305d28b 103 printf("Scan:\r\n");
hydroguy45 7:ca226305d28b 104
hydroguy45 7:ca226305d28b 105 int count = wifi->scan(NULL,0);
hydroguy45 7:ca226305d28b 106
hydroguy45 7:ca226305d28b 107 /* Limit number of network arbitrary to 15 */
hydroguy45 7:ca226305d28b 108 count = count < 15 ? count : 15;
hydroguy45 7:ca226305d28b 109
hydroguy45 7:ca226305d28b 110 ap = new WiFiAccessPoint[count];
hydroguy45 7:ca226305d28b 111 count = wifi->scan(ap, count);
hydroguy45 7:ca226305d28b 112 for (int i = 0; i < count; i++)
hydroguy45 7:ca226305d28b 113 {
hydroguy45 7:ca226305d28b 114 printf("Network: %s secured: %s BSSID: %hhX:%hhX:%hhX:%hhx:%hhx:%hhx RSSI: %hhd Ch: %hhd\r\n", ap[i].get_ssid(),
hydroguy45 7:ca226305d28b 115 sec2str(ap[i].get_security()), ap[i].get_bssid()[0], ap[i].get_bssid()[1], ap[i].get_bssid()[2],
hydroguy45 7:ca226305d28b 116 ap[i].get_bssid()[3], ap[i].get_bssid()[4], ap[i].get_bssid()[5], ap[i].get_rssi(), ap[i].get_channel());
hydroguy45 7:ca226305d28b 117 }
hydroguy45 7:ca226305d28b 118 printf("%d networks available.\r\n", count);
hydroguy45 7:ca226305d28b 119
hydroguy45 7:ca226305d28b 120 delete[] ap;
hydroguy45 7:ca226305d28b 121 }
hydroguy45 7:ca226305d28b 122
hydroguy45 7:ca226305d28b 123 void GET(NetworkInterface *net, const char * address, const char * argument)
hydroguy45 7:ca226305d28b 124 {
hydroguy45 7:ca226305d28b 125 TCPSocket socket;
hydroguy45 7:ca226305d28b 126
hydroguy45 7:ca226305d28b 127 printf("Sending HTTP request to %s/?result=%s\r\n", address, argument);
hydroguy45 7:ca226305d28b 128
hydroguy45 7:ca226305d28b 129 // Open a socket on the network interface, and create a TCP connection to www.arm.com
hydroguy45 7:ca226305d28b 130 socket.open(net);
hydroguy45 7:ca226305d28b 131 socket.connect(address, 8081);
hydroguy45 7:ca226305d28b 132
hydroguy45 7:ca226305d28b 133 // Send a simple http request
hydroguy45 9:b8801ba7d7c2 134 char sbuffer[1024]; //= "GET /?result=1 HTTP/1.1\r\nHost: upenn.pennpacapp.com\r\n\r\n");
hydroguy45 9:b8801ba7d7c2 135 sprintf(sbuffer, "GET /?result=%s HTTP/1.1\r\nHost: %s\r\n\r\n", argument, address);
hydroguy45 9:b8801ba7d7c2 136 //strcat(sbuffer, "upenn.pennpacapp.com");
hydroguy45 9:b8801ba7d7c2 137 //strcat(sbuffer, "\r\n\r\n");
hydroguy45 9:b8801ba7d7c2 138 //strcat(sbuffer, address);
hydroguy45 7:ca226305d28b 139 int scount = socket.send(sbuffer, sizeof sbuffer);
hydroguy45 7:ca226305d28b 140 printf("sent %d [%.*s]\r\n", scount, strstr(sbuffer, "\r\n")-sbuffer, sbuffer);
hydroguy45 9:b8801ba7d7c2 141 printf("-->%s\r\n", sbuffer);
hydroguy45 7:ca226305d28b 142 // Recieve a simple http response and print out the response line
hydroguy45 7:ca226305d28b 143 char rbuffer[1024];
hydroguy45 7:ca226305d28b 144 int rcount = socket.recv(rbuffer, sizeof rbuffer);
hydroguy45 7:ca226305d28b 145 printf("recv %d [%.*s]\r\n", rcount, strstr(rbuffer, "\r\n")-rbuffer, rbuffer);
hydroguy45 7:ca226305d28b 146
hydroguy45 7:ca226305d28b 147 // Close the socket to return its memory and bring down the network interface
hydroguy45 7:ca226305d28b 148 socket.close();
hydroguy45 7:ca226305d28b 149 }
hydroguy45 7:ca226305d28b 150 int initConnection(const char * SSID, const char * password)
hydroguy45 7:ca226305d28b 151 {
hydroguy45 7:ca226305d28b 152 printf("WiFi example\r\n\r\n");
hydroguy45 7:ca226305d28b 153
hydroguy45 7:ca226305d28b 154 // Scan for available access points
hydroguy45 7:ca226305d28b 155 scan_demo(&wifi);
hydroguy45 7:ca226305d28b 156
hydroguy45 7:ca226305d28b 157 printf("\r\nConnecting...\r\n");
hydroguy45 7:ca226305d28b 158 int ret = wifi.connect(SSID, password, NSAPI_SECURITY_WPA_WPA2);
hydroguy45 7:ca226305d28b 159 if (ret != 0) {
hydroguy45 7:ca226305d28b 160 printf("\r\nConnection error\r\n");
hydroguy45 7:ca226305d28b 161 return -1;
hydroguy45 7:ca226305d28b 162 }
hydroguy45 7:ca226305d28b 163
hydroguy45 7:ca226305d28b 164 printf("Success\r\n\r\n");
hydroguy45 7:ca226305d28b 165 printf("MAC: %s\r\n", wifi.get_mac_address());
hydroguy45 7:ca226305d28b 166 printf("IP: %s\r\n", wifi.get_ip_address());
hydroguy45 7:ca226305d28b 167 printf("Netmask: %s\r\n", wifi.get_netmask());
hydroguy45 7:ca226305d28b 168 printf("Gateway: %s\r\n", wifi.get_gateway());
hydroguy45 7:ca226305d28b 169 printf("RSSI: %d\r\n\r\n", wifi.get_rssi());
hydroguy45 7:ca226305d28b 170
hydroguy45 9:b8801ba7d7c2 171 //GET(&wifi, "upenn.pennpacapp.com", "1");
hydroguy45 9:b8801ba7d7c2 172 //GET(&wifi, "192.168.8.1", "Testing|testing|1|2|3");
hydroguy45 7:ca226305d28b 173 }
hydroguy45 7:ca226305d28b 174 int sendGET(const char * args){
hydroguy45 7:ca226305d28b 175 GET(&wifi, "192.168.8.1", args);
hydroguy45 7:ca226305d28b 176 }