gs fan / GSwifi

GainSpan Wi-Fi library see: http://mbed.org/users/gsfan/notebook/gainspan_wifi/

Dependents:   GSwifi_httpd GSwifi_websocket GSwifi_tcpclient GSwifi_tcpserver ... more

Fork of GSwifi by gs fan

GainSpan Wi-Fi library

The GS1011 is an ultra low power 802.11b wireless module from GainSpan.

see: http://mbed.org/users/gsfan/notebook/gainspan_wifi/

/media/uploads/gsfan/gs_im_002.jpg /media/uploads/gsfan/gs1011m_2.jpg

ゲインスパン Wi-Fi モジュール ライブラリ

ゲインスパン社の低電力 Wi-Fiモジュール（無線LAN） GS1011 シリーズ用のライブラリです。

解説: http://mbed.org/users/gsfan/notebook/gainspan_wifi/

GSwifi_http.cpp@25:f6e5622d2930, 2013-02-11 (annotated)

Committer:
gsfan
Date:
Mon Feb 11 06:01:46 2013 +0000
Revision:
25:f6e5622d2930
Child:
29:1c4419512941
split the file

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gsfan 25:f6e5622d2930 1 /* Copyright (C) 2013 gsfan, MIT License
gsfan 25:f6e5622d2930 2 *
gsfan 25:f6e5622d2930 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
gsfan 25:f6e5622d2930 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
gsfan 25:f6e5622d2930 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
gsfan 25:f6e5622d2930 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
gsfan 25:f6e5622d2930 7 * furnished to do so, subject to the following conditions:
gsfan 25:f6e5622d2930 8 *
gsfan 25:f6e5622d2930 9 * The above copyright notice and this permission notice shall be included in all copies or
gsfan 25:f6e5622d2930 10 * substantial portions of the Software.
gsfan 25:f6e5622d2930 11 *
gsfan 25:f6e5622d2930 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
gsfan 25:f6e5622d2930 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
gsfan 25:f6e5622d2930 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
gsfan 25:f6e5622d2930 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
gsfan 25:f6e5622d2930 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
gsfan 25:f6e5622d2930 17 */
gsfan 25:f6e5622d2930 18 /** @file
gsfan 25:f6e5622d2930 19 * @brief Gainspan wi-fi module library for mbed
gsfan 25:f6e5622d2930 20 * GS1011MIC, GS1011MIP, GainSpan WiFi Breakout, etc.
gsfan 25:f6e5622d2930 21 */
gsfan 25:f6e5622d2930 22
gsfan 25:f6e5622d2930 23 #include "dbg.h"
gsfan 25:f6e5622d2930 24 #include "mbed.h"
gsfan 25:f6e5622d2930 25 #include "GSwifi.h"
gsfan 25:f6e5622d2930 26
gsfan 25:f6e5622d2930 27
gsfan 25:f6e5622d2930 28 int GSwifi::httpGet (Host &host, const char *uri, const char *user, const char *pwd, int ssl, onGsReceiveFunc ponGsReceive) {
gsfan 25:f6e5622d2930 29 char cmd[GS_CMD_SIZE];
gsfan 25:f6e5622d2930 30
gsfan 25:f6e5622d2930 31 if (! _connect || _status != GSSTAT_READY) return -1;
gsfan 25:f6e5622d2930 32
gsfan 25:f6e5622d2930 33 if (host.getIp().isNull()) {
gsfan 25:f6e5622d2930 34 if (getHostByName(host)) {
gsfan 25:f6e5622d2930 35 if (getHostByName(host)) return -1;
gsfan 25:f6e5622d2930 36 }
gsfan 25:f6e5622d2930 37 }
gsfan 25:f6e5622d2930 38 if (host.getPort() == 0) {
gsfan 25:f6e5622d2930 39 if (ssl) {
gsfan 25:f6e5622d2930 40 host.setPort(443);
gsfan 25:f6e5622d2930 41 } else {
gsfan 25:f6e5622d2930 42 host.setPort(80);
gsfan 25:f6e5622d2930 43 }
gsfan 25:f6e5622d2930 44 }
gsfan 25:f6e5622d2930 45
gsfan 25:f6e5622d2930 46 command("AT+HTTPCONF=3,close", GSRES_NORMAL); // Connection:
gsfan 25:f6e5622d2930 47 sprintf(cmd, "AT+HTTPCONF=11,%s", host.getName()); // Host:
gsfan 25:f6e5622d2930 48 command(cmd, GSRES_NORMAL);
gsfan 25:f6e5622d2930 49 if (user && pwd) {
gsfan 25:f6e5622d2930 50 char tmp[GS_CMD_SIZE], tmp2[GS_CMD_SIZE];
gsfan 25:f6e5622d2930 51 snprintf(tmp, sizeof(tmp), "%s:%s", user, pwd);
gsfan 25:f6e5622d2930 52 base64encode(tmp, strlen(tmp), tmp2, sizeof(tmp2));
gsfan 25:f6e5622d2930 53 sprintf(cmd, "AT+HTTPCONF=2,Basic %s", tmp2); // Authorization:
gsfan 25:f6e5622d2930 54 command(cmd, GSRES_NORMAL);
gsfan 25:f6e5622d2930 55 } else {
gsfan 25:f6e5622d2930 56 command("AT+HTTPCONFDEL=2", GSRES_NORMAL);
gsfan 25:f6e5622d2930 57 }
gsfan 25:f6e5622d2930 58 command("AT+HTTPCONFDEL=5", GSRES_NORMAL);
gsfan 25:f6e5622d2930 59 command("AT+HTTPCONFDEL=7", GSRES_NORMAL);
gsfan 25:f6e5622d2930 60
gsfan 25:f6e5622d2930 61 sprintf(cmd, "AT+HTTPOPEN=%d.%d.%d.%d,%d", host.getIp()[0], host.getIp()[1], host.getIp()[2], host.getIp()[3], host.getPort());
gsfan 25:f6e5622d2930 62 if (ssl) {
gsfan 25:f6e5622d2930 63 strcat(cmd, ",1");
gsfan 25:f6e5622d2930 64 }
gsfan 25:f6e5622d2930 65 if (command(cmd, GSRES_HTTP)) return -1;
gsfan 25:f6e5622d2930 66 newSock(_cid, GSTYPE_CLIENT, GSPROT_HTTPGET, ponGsReceive);
gsfan 25:f6e5622d2930 67
gsfan 25:f6e5622d2930 68 sprintf(cmd, "AT+HTTPSEND=%d,1,%d,%s", _cid, GS_TIMEOUT / 1000, uri); // GET
gsfan 25:f6e5622d2930 69 command(cmd, GSRES_NORMAL);
gsfan 25:f6e5622d2930 70
gsfan 25:f6e5622d2930 71 return _cid;
gsfan 25:f6e5622d2930 72 }
gsfan 25:f6e5622d2930 73
gsfan 25:f6e5622d2930 74 int GSwifi::httpGet (Host &host, const char *uri, int ssl, onGsReceiveFunc ponGsReceive) {
gsfan 25:f6e5622d2930 75 return httpGet (host, uri, NULL, NULL, ssl, ponGsReceive);
gsfan 25:f6e5622d2930 76 }
gsfan 25:f6e5622d2930 77
gsfan 25:f6e5622d2930 78 int GSwifi::httpPost (Host &host, const char *uri, const char *body, const char *user, const char *pwd, int ssl, onGsReceiveFunc ponGsReceive) {
gsfan 25:f6e5622d2930 79 char cmd[GS_CMD_SIZE];
gsfan 25:f6e5622d2930 80 int i, len;
gsfan 25:f6e5622d2930 81
gsfan 25:f6e5622d2930 82 if (! _connect || _status != GSSTAT_READY) return -1;
gsfan 25:f6e5622d2930 83
gsfan 25:f6e5622d2930 84 if (host.getIp().isNull()) {
gsfan 25:f6e5622d2930 85 if (getHostByName(host)) {
gsfan 25:f6e5622d2930 86 if (getHostByName(host)) return -1;
gsfan 25:f6e5622d2930 87 }
gsfan 25:f6e5622d2930 88 }
gsfan 25:f6e5622d2930 89 if (host.getPort() == 0) {
gsfan 25:f6e5622d2930 90 if (ssl) {
gsfan 25:f6e5622d2930 91 host.setPort(443);
gsfan 25:f6e5622d2930 92 } else {
gsfan 25:f6e5622d2930 93 host.setPort(80);
gsfan 25:f6e5622d2930 94 }
gsfan 25:f6e5622d2930 95 }
gsfan 25:f6e5622d2930 96 len = strlen(body);
gsfan 25:f6e5622d2930 97
gsfan 25:f6e5622d2930 98 command("AT+HTTPCONF=3,close", GSRES_NORMAL); // Connection:
gsfan 25:f6e5622d2930 99 sprintf(cmd, "AT+HTTPCONF=11,%s", host.getName()); // Host:
gsfan 25:f6e5622d2930 100 command(cmd, GSRES_NORMAL);
gsfan 25:f6e5622d2930 101 sprintf(cmd, "AT+HTTPCONF=5,%d", len); // Content-Length:
gsfan 25:f6e5622d2930 102 command(cmd, GSRES_NORMAL);
gsfan 25:f6e5622d2930 103 command("AT+HTTPCONF=7,application/x-www-form-urlencoded", GSRES_NORMAL); // Content-type:
gsfan 25:f6e5622d2930 104 if (user && pwd) {
gsfan 25:f6e5622d2930 105 char tmp[GS_CMD_SIZE], tmp2[GS_CMD_SIZE];
gsfan 25:f6e5622d2930 106 snprintf(tmp, sizeof(tmp), "%s:%s", user, pwd);
gsfan 25:f6e5622d2930 107 base64encode(tmp, strlen(tmp), tmp2, sizeof(tmp2));
gsfan 25:f6e5622d2930 108 sprintf(cmd, "AT+HTTPCONF=2,Basic %s", tmp2); // Authorization:
gsfan 25:f6e5622d2930 109 command(cmd, GSRES_NORMAL);
gsfan 25:f6e5622d2930 110 } else {
gsfan 25:f6e5622d2930 111 command("AT+HTTPCONFDEL=2", GSRES_NORMAL);
gsfan 25:f6e5622d2930 112 }
gsfan 25:f6e5622d2930 113
gsfan 25:f6e5622d2930 114 sprintf(cmd, "AT+HTTPOPEN=%d.%d.%d.%d,%d", host.getIp()[0], host.getIp()[1], host.getIp()[2], host.getIp()[3], host.getPort());
gsfan 25:f6e5622d2930 115 if (ssl) {
gsfan 25:f6e5622d2930 116 strcat(cmd, ",1");
gsfan 25:f6e5622d2930 117 }
gsfan 25:f6e5622d2930 118 if (command(cmd, GSRES_HTTP)) return -1;
gsfan 25:f6e5622d2930 119 newSock(_cid, GSTYPE_CLIENT, GSPROT_HTTPPOST, ponGsReceive);
gsfan 25:f6e5622d2930 120
gsfan 25:f6e5622d2930 121 sprintf(cmd, "AT+HTTPSEND=%d,3,%d,%s,%d", _cid, GS_TIMEOUT / 1000, uri, len); // POST
gsfan 25:f6e5622d2930 122 command(cmd, GSRES_NORMAL);
gsfan 25:f6e5622d2930 123
gsfan 25:f6e5622d2930 124 _gs.printf("\x1bH%X", _cid);
gsfan 25:f6e5622d2930 125 for (i = 0; i < len; i ++) {
gsfan 25:f6e5622d2930 126 _gs_putc(body[i]);
gsfan 25:f6e5622d2930 127 DBG("%c", body[i]);
gsfan 25:f6e5622d2930 128 }
gsfan 25:f6e5622d2930 129
gsfan 25:f6e5622d2930 130 return _cid;
gsfan 25:f6e5622d2930 131 }
gsfan 25:f6e5622d2930 132
gsfan 25:f6e5622d2930 133 int GSwifi::httpPost (Host &host, const char *uri, const char *body, int ssl, onGsReceiveFunc ponGsReceive) {
gsfan 25:f6e5622d2930 134 return httpPost (host, uri, body, NULL, NULL, ssl, ponGsReceive);
gsfan 25:f6e5622d2930 135 }
gsfan 25:f6e5622d2930 136
gsfan 25:f6e5622d2930 137
gsfan 25:f6e5622d2930 138 /* base64encode code from
gsfan 25:f6e5622d2930 139 * Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
gsfan 25:f6e5622d2930 140 */
gsfan 25:f6e5622d2930 141 int GSwifi::base64encode (char *input, int length, char *output, int len) {
gsfan 25:f6e5622d2930 142 static const char base64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
gsfan 25:f6e5622d2930 143 unsigned int c, c1, c2, c3;
gsfan 25:f6e5622d2930 144
gsfan 25:f6e5622d2930 145 if (len < ((((length-1)/3)+1)<<2)) return -1;
gsfan 25:f6e5622d2930 146 for(unsigned int i = 0, j = 0; i<length; i+=3,j+=4) {
gsfan 25:f6e5622d2930 147 c1 = ((((unsigned char)*((unsigned char *)&input[i]))));
gsfan 25:f6e5622d2930 148 c2 = (length>i+1)?((((unsigned char)*((unsigned char *)&input[i+1])))):0;
gsfan 25:f6e5622d2930 149 c3 = (length>i+2)?((((unsigned char)*((unsigned char *)&input[i+2])))):0;
gsfan 25:f6e5622d2930 150
gsfan 25:f6e5622d2930 151 c = ((c1 & 0xFC) >> 2);
gsfan 25:f6e5622d2930 152 output[j+0] = base64[c];
gsfan 25:f6e5622d2930 153 c = ((c1 & 0x03) << 4) | ((c2 & 0xF0) >> 4);
gsfan 25:f6e5622d2930 154 output[j+1] = base64[c];
gsfan 25:f6e5622d2930 155 c = ((c2 & 0x0F) << 2) | ((c3 & 0xC0) >> 6);
gsfan 25:f6e5622d2930 156 output[j+2] = (length>i+1)?base64[c]:'=';
gsfan 25:f6e5622d2930 157 c = (c3 & 0x3F);
gsfan 25:f6e5622d2930 158 output[j+3] = (length>i+2)?base64[c]:'=';
gsfan 25:f6e5622d2930 159 }
gsfan 25:f6e5622d2930 160 output[(((length-1)/3)+1)<<2] = '\0';
gsfan 25:f6e5622d2930 161 return 0;
gsfan 25:f6e5622d2930 162 }
gsfan 25:f6e5622d2930 163
gsfan 25:f6e5622d2930 164 /* urlencode code from
gsfan 25:f6e5622d2930 165 * Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
gsfan 25:f6e5622d2930 166 */
gsfan 25:f6e5622d2930 167 int GSwifi::urlencode (char *str, char *buf, int len) {
gsfan 25:f6e5622d2930 168 // char *pstr = str, *buf = (char*)malloc(strlen(str) * 3 + 1), *pbuf = buf;
gsfan 25:f6e5622d2930 169 char *pstr = str, *pbuf = buf;
gsfan 25:f6e5622d2930 170
gsfan 25:f6e5622d2930 171 if (len < (strlen(str) * 3 + 1)) return -1;
gsfan 25:f6e5622d2930 172 while (*pstr) {
gsfan 25:f6e5622d2930 173 if (isalnum(*pstr) || *pstr == '-' || *pstr == '_' || *pstr == '.' || *pstr == '~')
gsfan 25:f6e5622d2930 174 *pbuf++ = *pstr;
gsfan 25:f6e5622d2930 175 else if (*pstr == ' ')
gsfan 25:f6e5622d2930 176 *pbuf++ = '+';
gsfan 25:f6e5622d2930 177 else
gsfan 25:f6e5622d2930 178 *pbuf++ = '%', *pbuf++ = to_hex(*pstr >> 4), *pbuf++ = to_hex(*pstr & 15);
gsfan 25:f6e5622d2930 179 pstr++;
gsfan 25:f6e5622d2930 180 }
gsfan 25:f6e5622d2930 181 *pbuf = '\0';
gsfan 25:f6e5622d2930 182 return 0;
gsfan 25:f6e5622d2930 183 }
gsfan 25:f6e5622d2930 184
gsfan 25:f6e5622d2930 185 /* urldecode code from
gsfan 25:f6e5622d2930 186 * Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
gsfan 25:f6e5622d2930 187 */
gsfan 25:f6e5622d2930 188 int GSwifi::urldecode (char *str, char *buf, int len) {
gsfan 25:f6e5622d2930 189 // char *pstr = str, *buf = (char*)malloc(strlen(str) + 1), *pbuf = buf;
gsfan 25:f6e5622d2930 190 char *pstr = str, *pbuf = buf;
gsfan 25:f6e5622d2930 191
gsfan 25:f6e5622d2930 192 if (len < (strlen(str) / 3 - 1)) return -1;
gsfan 25:f6e5622d2930 193 while (*pstr) {
gsfan 25:f6e5622d2930 194 if (*pstr == '%') {
gsfan 25:f6e5622d2930 195 if (pstr[1] && pstr[2]) {
gsfan 25:f6e5622d2930 196 *pbuf++ = from_hex(pstr[1]) << 4 | from_hex(pstr[2]);
gsfan 25:f6e5622d2930 197 pstr += 2;
gsfan 25:f6e5622d2930 198 }
gsfan 25:f6e5622d2930 199 } else if (*pstr == '+') {
gsfan 25:f6e5622d2930 200 *pbuf++ = ' ';
gsfan 25:f6e5622d2930 201 } else {
gsfan 25:f6e5622d2930 202 *pbuf++ = *pstr;
gsfan 25:f6e5622d2930 203 }
gsfan 25:f6e5622d2930 204 pstr++;
gsfan 25:f6e5622d2930 205 }
gsfan 25:f6e5622d2930 206 *pbuf = '\0';
gsfan 25:f6e5622d2930 207 return 0;
gsfan 25:f6e5622d2930 208 }