gs fan / GSwifiInterface

GSwifiInterface library (interface for GainSpan Wi-Fi GS1011 modules) Please see https://mbed.org/users/gsfan/notebook/GSwifiInterface/

Dependents:   GSwifiInterface_HelloWorld GSwifiInterface_HelloServo GSwifiInterface_UDPEchoServer GSwifiInterface_UDPEchoClient ... more

Fork of WiflyInterface by mbed official

GainSpan Wi-Fi library

The GS1011/GS2100 is an ultra low power 802.11b wireless module from GainSpan.

mbed RTOS supported.

/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/GS2100 シリーズ用のライブラリです。

mbed RTOS に対応しています。(mbed2.0)

GSwifi/GSwifi_http.cpp@21:6431364fc667, 2014-06-05 (annotated)

Committer:
gsfan
Date:
Thu Jun 05 06:12:59 2014 +0000
Revision:
21:6431364fc667
Parent:
12:057089026a20 
fix init (setAddress)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gsfan 8:64184a968e3b 1 /* Copyright (C) 2013 gsfan, MIT License
gsfan 8:64184a968e3b 2 *
gsfan 8:64184a968e3b 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
gsfan 8:64184a968e3b 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
gsfan 8:64184a968e3b 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
gsfan 8:64184a968e3b 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
gsfan 8:64184a968e3b 7 * furnished to do so, subject to the following conditions:
gsfan 8:64184a968e3b 8 *
gsfan 8:64184a968e3b 9 * The above copyright notice and this permission notice shall be included in all copies or
gsfan 8:64184a968e3b 10 * substantial portions of the Software.
gsfan 8:64184a968e3b 11 *
gsfan 8:64184a968e3b 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
gsfan 8:64184a968e3b 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
gsfan 8:64184a968e3b 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
gsfan 8:64184a968e3b 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
gsfan 8:64184a968e3b 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
gsfan 8:64184a968e3b 17 */
gsfan 8:64184a968e3b 18
gsfan 8:64184a968e3b 19 #include "GSwifi.h"
gsfan 8:64184a968e3b 20
gsfan 12:057089026a20 21 int GSwifi::httpGet (const char *host, int port, const char *uri, bool ssl, const char *user, const char *pwd, void(*func)(int)) {
gsfan 8:64184a968e3b 22 char ip[17];
gsfan 8:64184a968e3b 23 int cid;
gsfan 8:64184a968e3b 24
gsfan 12:057089026a20 25 if (!isAssociated() || _state.status != STAT_READY) return -1;
gsfan 11:71d67fea5ace 26
gsfan 8:64184a968e3b 27 if (getHostByName(host, ip)) return -1;
gsfan 8:64184a968e3b 28 if (! port) {
gsfan 8:64184a968e3b 29 if (ssl) {
gsfan 8:64184a968e3b 30 port = 443;
gsfan 8:64184a968e3b 31 } else {
gsfan 8:64184a968e3b 32 port = 80;
gsfan 8:64184a968e3b 33 }
gsfan 8:64184a968e3b 34 }
gsfan 8:64184a968e3b 35
gsfan 8:64184a968e3b 36 if (cmdHTTPCONF(3, "close")) return -1; // Connection
gsfan 8:64184a968e3b 37 cmdHTTPCONFDEL(5);
gsfan 8:64184a968e3b 38 cmdHTTPCONFDEL(7);
gsfan 8:64184a968e3b 39 cmdHTTPCONF(11, host); // Host
gsfan 8:64184a968e3b 40 if (user && pwd) {
gsfan 8:64184a968e3b 41 char tmp[CFG_CMD_SIZE], tmp2[CFG_CMD_SIZE];
gsfan 8:64184a968e3b 42 snprintf(tmp, sizeof(tmp), "%s:%s", user, pwd);
gsfan 8:64184a968e3b 43 base64encode(tmp, strlen(tmp), tmp2, sizeof(tmp2));
gsfan 8:64184a968e3b 44 sprintf(tmp, "Basic %s", tmp2);
gsfan 8:64184a968e3b 45 cmdHTTPCONF(2, tmp); // Authorization
gsfan 8:64184a968e3b 46 } else {
gsfan 8:64184a968e3b 47 cmdHTTPCONFDEL(2);
gsfan 8:64184a968e3b 48 }
gsfan 8:64184a968e3b 49
gsfan 11:71d67fea5ace 50 _state.cid = -1;
gsfan 8:64184a968e3b 51 if (cmdHTTPOPEN(ip, port, ssl)) return -1;
gsfan 8:64184a968e3b 52 if (_state.cid < 0) return -1;
gsfan 8:64184a968e3b 53 cid = _state.cid;
gsfan 8:64184a968e3b 54 _con[cid].protocol = PROTO_HTTPGET;
gsfan 8:64184a968e3b 55 _con[cid].type = TYPE_CLIENT;
gsfan 12:057089026a20 56 _con[cid].func = func;
gsfan 8:64184a968e3b 57
gsfan 8:64184a968e3b 58 cmdHTTPSEND(cid, false, uri); // GET
gsfan 8:64184a968e3b 59 return cid;
gsfan 8:64184a968e3b 60 }
gsfan 8:64184a968e3b 61
gsfan 12:057089026a20 62 int GSwifi::httpPost (const char *host, int port, const char *uri, const char *body, bool ssl, const char *user, const char *pwd, void(*func)(int)) {
gsfan 8:64184a968e3b 63 char cmd[CFG_CMD_SIZE];
gsfan 8:64184a968e3b 64 char ip[17];
gsfan 8:64184a968e3b 65 int cid, len;
gsfan 8:64184a968e3b 66
gsfan 12:057089026a20 67 if (!isAssociated() || _state.status != STAT_READY) return -1;
gsfan 11:71d67fea5ace 68
gsfan 8:64184a968e3b 69 if (getHostByName(host, ip)) return -1;
gsfan 8:64184a968e3b 70 if (! port) {
gsfan 8:64184a968e3b 71 if (ssl) {
gsfan 8:64184a968e3b 72 port = 443;
gsfan 8:64184a968e3b 73 } else {
gsfan 8:64184a968e3b 74 port = 80;
gsfan 8:64184a968e3b 75 }
gsfan 8:64184a968e3b 76 }
gsfan 8:64184a968e3b 77 len = strlen(body);
gsfan 8:64184a968e3b 78
gsfan 8:64184a968e3b 79 if (cmdHTTPCONF(3, "close")) return -1; // Connection
gsfan 8:64184a968e3b 80 sprintf(cmd, "%d", len);
gsfan 8:64184a968e3b 81 cmdHTTPCONF(5, cmd); // Content-Length
gsfan 8:64184a968e3b 82 cmdHTTPCONF(7, "application/x-www-form-urlencoded"); // Content-type
gsfan 8:64184a968e3b 83 cmdHTTPCONF(11, host); // Host
gsfan 8:64184a968e3b 84 if (user && pwd) {
gsfan 8:64184a968e3b 85 char tmp[CFG_CMD_SIZE], tmp2[CFG_CMD_SIZE];
gsfan 8:64184a968e3b 86 snprintf(tmp, sizeof(tmp), "%s:%s", user, pwd);
gsfan 8:64184a968e3b 87 base64encode(tmp, strlen(tmp), tmp2, sizeof(tmp2));
gsfan 8:64184a968e3b 88 sprintf(tmp, "Basic %s", tmp2);
gsfan 8:64184a968e3b 89 cmdHTTPCONF(2, tmp); // Authorization
gsfan 8:64184a968e3b 90 } else {
gsfan 8:64184a968e3b 91 cmdHTTPCONFDEL(2);
gsfan 8:64184a968e3b 92 }
gsfan 8:64184a968e3b 93
gsfan 11:71d67fea5ace 94 _state.cid = -1;
gsfan 8:64184a968e3b 95 if (cmdHTTPOPEN(ip, port, ssl)) return -1;
gsfan 8:64184a968e3b 96 if (_state.cid < 0) return -1;
gsfan 8:64184a968e3b 97 cid = _state.cid;
gsfan 8:64184a968e3b 98 _con[cid].protocol = PROTO_HTTPPOST;
gsfan 8:64184a968e3b 99 _con[cid].type = TYPE_CLIENT;
gsfan 12:057089026a20 100 _con[cid].func = func;
gsfan 8:64184a968e3b 101
gsfan 8:64184a968e3b 102 cmdHTTPSEND(cid, true, uri, len); // POST
gsfan 8:64184a968e3b 103 sprintf(cmd, "\x1bH%X", cid);
gsfan 8:64184a968e3b 104 sendData(body, len, DEFAULT_WAIT_RESP_TIMEOUT, cmd);
gsfan 8:64184a968e3b 105 return cid;
gsfan 8:64184a968e3b 106 }
gsfan 8:64184a968e3b 107
gsfan 8:64184a968e3b 108
gsfan 8:64184a968e3b 109 /* base64encode code from
gsfan 8:64184a968e3b 110 * Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
gsfan 8:64184a968e3b 111 */
gsfan 8:64184a968e3b 112 int GSwifi::base64encode (const char *input, int length, char *output, int len) {
gsfan 8:64184a968e3b 113 static const char base64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
gsfan 8:64184a968e3b 114 unsigned int c, c1, c2, c3;
gsfan 8:64184a968e3b 115
gsfan 8:64184a968e3b 116 if (len < ((((length-1)/3)+1)<<2)) return -1;
gsfan 8:64184a968e3b 117 for(unsigned int i = 0, j = 0; i<length; i+=3,j+=4) {
gsfan 8:64184a968e3b 118 c1 = ((((unsigned char)*((unsigned char *)&input[i]))));
gsfan 8:64184a968e3b 119 c2 = (length>i+1)?((((unsigned char)*((unsigned char *)&input[i+1])))):0;
gsfan 8:64184a968e3b 120 c3 = (length>i+2)?((((unsigned char)*((unsigned char *)&input[i+2])))):0;
gsfan 8:64184a968e3b 121
gsfan 8:64184a968e3b 122 c = ((c1 & 0xFC) >> 2);
gsfan 8:64184a968e3b 123 output[j+0] = base64[c];
gsfan 8:64184a968e3b 124 c = ((c1 & 0x03) << 4) | ((c2 & 0xF0) >> 4);
gsfan 8:64184a968e3b 125 output[j+1] = base64[c];
gsfan 8:64184a968e3b 126 c = ((c2 & 0x0F) << 2) | ((c3 & 0xC0) >> 6);
gsfan 8:64184a968e3b 127 output[j+2] = (length>i+1)?base64[c]:'=';
gsfan 8:64184a968e3b 128 c = (c3 & 0x3F);
gsfan 8:64184a968e3b 129 output[j+3] = (length>i+2)?base64[c]:'=';
gsfan 8:64184a968e3b 130 }
gsfan 8:64184a968e3b 131 output[(((length-1)/3)+1)<<2] = '\0';
gsfan 8:64184a968e3b 132 return 0;
gsfan 8:64184a968e3b 133 }
gsfan 8:64184a968e3b 134
gsfan 8:64184a968e3b 135
gsfan 8:64184a968e3b 136 /* urlencode code from
gsfan 8:64184a968e3b 137 * Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
gsfan 8:64184a968e3b 138 */
gsfan 8:64184a968e3b 139 int GSwifi::urlencode (const char *str, char *buf, int len) {
gsfan 8:64184a968e3b 140 // char *pstr = str, *buf = (char*)malloc(strlen(str) * 3 + 1), *pbuf = buf;
gsfan 8:64184a968e3b 141 const char *pstr = str;
gsfan 8:64184a968e3b 142 char *pbuf = buf;
gsfan 8:64184a968e3b 143
gsfan 8:64184a968e3b 144 if (len < (strlen(str) * 3 + 1)) return -1;
gsfan 8:64184a968e3b 145 while (*pstr) {
gsfan 8:64184a968e3b 146 if (isalnum(*pstr) || *pstr == '-' || *pstr == '_' || *pstr == '.' || *pstr == '~')
gsfan 8:64184a968e3b 147 *pbuf++ = *pstr;
gsfan 8:64184a968e3b 148 else if (*pstr == ' ')
gsfan 8:64184a968e3b 149 *pbuf++ = '+';
gsfan 8:64184a968e3b 150 else
gsfan 8:64184a968e3b 151 *pbuf++ = '%', *pbuf++ = to_hex(*pstr >> 4), *pbuf++ = to_hex(*pstr & 15);
gsfan 8:64184a968e3b 152 pstr++;
gsfan 8:64184a968e3b 153 }
gsfan 8:64184a968e3b 154 *pbuf = '\0';
gsfan 8:64184a968e3b 155 return 0;
gsfan 8:64184a968e3b 156 }
gsfan 8:64184a968e3b 157
gsfan 8:64184a968e3b 158 /* urldecode code from
gsfan 8:64184a968e3b 159 * Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
gsfan 8:64184a968e3b 160 */
gsfan 8:64184a968e3b 161 int GSwifi::urldecode (const char *str, char *buf, int len) {
gsfan 8:64184a968e3b 162 // char *pstr = str, *buf = (char*)malloc(strlen(str) + 1), *pbuf = buf;
gsfan 8:64184a968e3b 163 const char *pstr = str;
gsfan 8:64184a968e3b 164 char *pbuf = buf;
gsfan 8:64184a968e3b 165
gsfan 8:64184a968e3b 166 if (len < (strlen(str) / 3 - 1)) return -1;
gsfan 8:64184a968e3b 167 while (*pstr) {
gsfan 8:64184a968e3b 168 if (*pstr == '%') {
gsfan 8:64184a968e3b 169 if (pstr[1] && pstr[2]) {
gsfan 8:64184a968e3b 170 *pbuf++ = from_hex(pstr[1]) << 4 | from_hex(pstr[2]);
gsfan 8:64184a968e3b 171 pstr += 2;
gsfan 8:64184a968e3b 172 }
gsfan 8:64184a968e3b 173 } else if (*pstr == '+') {
gsfan 8:64184a968e3b 174 *pbuf++ = ' ';
gsfan 8:64184a968e3b 175 } else {
gsfan 8:64184a968e3b 176 *pbuf++ = *pstr;
gsfan 8:64184a968e3b 177 }
gsfan 8:64184a968e3b 178 pstr++;
gsfan 8:64184a968e3b 179 }
gsfan 8:64184a968e3b 180 *pbuf = '\0';
gsfan 8:64184a968e3b 181 return 0;
gsfan 8:64184a968e3b 182 }