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_httpd_util.cpp@15:086d1a33a197, 2014-01-30 (annotated)

Committer:
gsfan
Date:
Thu Jan 30 15:10:14 2014 +0000
Revision:
15:086d1a33a197
Parent:
12:057089026a20
Child:
20:9bfb8a13010c
fix httpd, WebSocket server, gpio rts/cts, and some bugs.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gsfan 12:057089026a20 1 /* Copyright (C) 2013 gsfan, MIT License
gsfan 12:057089026a20 2 *
gsfan 12:057089026a20 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
gsfan 12:057089026a20 4 * and associated documentation files (the "Software"), to deal in the Software without restriction,
gsfan 12:057089026a20 5 * including without limitation the rights to use, copy, modify, merge, publish, distribute,
gsfan 12:057089026a20 6 * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
gsfan 12:057089026a20 7 * furnished to do so, subject to the following conditions:
gsfan 12:057089026a20 8 *
gsfan 12:057089026a20 9 * The above copyright notice and this permission notice shall be included in all copies or
gsfan 12:057089026a20 10 * substantial portions of the Software.
gsfan 12:057089026a20 11 *
gsfan 12:057089026a20 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
gsfan 12:057089026a20 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
gsfan 12:057089026a20 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
gsfan 12:057089026a20 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
gsfan 12:057089026a20 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
gsfan 12:057089026a20 17 */
gsfan 12:057089026a20 18
gsfan 12:057089026a20 19 #include "GSwifi.h"
gsfan 12:057089026a20 20
gsfan 12:057089026a20 21 #ifdef CFG_ENABLE_HTTPD
gsfan 12:057089026a20 22
gsfan 12:057089026a20 23 int GSwifi::httpdFile (int cid, char *dir) {
gsfan 12:057089026a20 24 FILE *fp;
gsfan 12:057089026a20 25 int i, len;
gsfan 12:057089026a20 26 char buf[CFG_DATA_SIZE];
gsfan 12:057089026a20 27 char file[CFG_CMD_SIZE];
gsfan 12:057089026a20 28
gsfan 12:057089026a20 29 INFO("httpdFile %d %s", cid, dir);
gsfan 12:057089026a20 30
gsfan 12:057089026a20 31 strcpy(file, dir);
gsfan 12:057089026a20 32 strcat(file, _httpd[cid].filename);
gsfan 12:057089026a20 33 if (file[strlen(file) - 1] == '/') {
gsfan 12:057089026a20 34 strcat(file, "index.html");
gsfan 12:057089026a20 35 }
gsfan 12:057089026a20 36 DBG("file: %s\r\n", file);
gsfan 12:057089026a20 37
gsfan 12:057089026a20 38 fp = fopen(file, "r");
gsfan 12:057089026a20 39 if (fp) {
gsfan 12:057089026a20 40 strcpy(buf, "HTTP/1.1 200 OK\r\n");
gsfan 12:057089026a20 41 send(cid, buf, strlen(buf));
gsfan 12:057089026a20 42 {
gsfan 12:057089026a20 43 // file size
gsfan 12:057089026a20 44 i = ftell(fp);
gsfan 12:057089026a20 45 fseek(fp, 0, SEEK_END);
gsfan 12:057089026a20 46 len = ftell(fp);
gsfan 12:057089026a20 47 fseek(fp, i, SEEK_SET);
gsfan 12:057089026a20 48 }
gsfan 12:057089026a20 49
gsfan 12:057089026a20 50 strcpy(buf, "Server: GSwifi httpd\r\n");
gsfan 12:057089026a20 51 send(cid, buf, strlen(buf));
gsfan 12:057089026a20 52 if (_httpd[cid].keepalive) {
gsfan 12:057089026a20 53 strcpy(buf, "Connection: Keep-Alive\r\n");
gsfan 12:057089026a20 54 } else {
gsfan 12:057089026a20 55 strcpy(buf, "Connection: close\r\n");
gsfan 12:057089026a20 56 }
gsfan 12:057089026a20 57 send(cid, buf, strlen(buf));
gsfan 12:057089026a20 58 sprintf(buf, "Content-Type: %s\r\n", mimetype(file));
gsfan 12:057089026a20 59 send(cid, buf, strlen(buf));
gsfan 12:057089026a20 60 sprintf(buf, "Content-Length: %d\r\n\r\n", len);
gsfan 12:057089026a20 61 send(cid, buf, strlen(buf));
gsfan 12:057089026a20 62
gsfan 12:057089026a20 63 for (;;) {
gsfan 12:057089026a20 64 i = fread(buf, sizeof(char), sizeof(buf), fp);
gsfan 12:057089026a20 65 if (i <= 0) break;
gsfan 12:057089026a20 66 send(cid, buf, i);
gsfan 12:057089026a20 67 #if defined(TARGET_LPC1768) || defined(TARGET_LPC2368)
gsfan 12:057089026a20 68 if (feof(fp)) break;
gsfan 12:057089026a20 69 #endif
gsfan 12:057089026a20 70 }
gsfan 12:057089026a20 71 fclose(fp);
gsfan 12:057089026a20 72 return 0;
gsfan 12:057089026a20 73 }
gsfan 12:057089026a20 74
gsfan 12:057089026a20 75 httpdError(cid, 404);
gsfan 12:057089026a20 76 return -1;
gsfan 12:057089026a20 77 }
gsfan 12:057089026a20 78
gsfan 12:057089026a20 79 void GSwifi::httpdError (int cid, int err) {
gsfan 12:057089026a20 80 char buf[CFG_CMD_SIZE], msg[30];
gsfan 12:057089026a20 81
gsfan 12:057089026a20 82 switch (err) {
gsfan 12:057089026a20 83 case 400:
gsfan 12:057089026a20 84 strcpy(msg, "Bad Request");
gsfan 12:057089026a20 85 break;
gsfan 12:057089026a20 86 case 403:
gsfan 12:057089026a20 87 strcpy(msg, "Forbidden");
gsfan 12:057089026a20 88 break;
gsfan 12:057089026a20 89 case 404:
gsfan 12:057089026a20 90 strcpy(msg, "Not Found");
gsfan 12:057089026a20 91 break;
gsfan 12:057089026a20 92 case 500:
gsfan 12:057089026a20 93 default:
gsfan 12:057089026a20 94 strcpy(msg, "Internal Server Error");
gsfan 12:057089026a20 95 break;
gsfan 12:057089026a20 96 }
gsfan 12:057089026a20 97 DBG("httpd error: %d %d %s\r\n", cid, err, msg);
gsfan 12:057089026a20 98
gsfan 12:057089026a20 99 sprintf(buf, "HTTP/1.1 %d %s\r\n", err, msg);
gsfan 12:057089026a20 100 send(cid, buf, strlen(buf));
gsfan 12:057089026a20 101 strcpy(buf, "Content-Type: text/html\r\n\r\n");
gsfan 12:057089026a20 102 send(cid, buf, strlen(buf));
gsfan 12:057089026a20 103
gsfan 12:057089026a20 104 sprintf(buf, "<html><head><title>%d %s</title></head>\r\n", err, msg);
gsfan 12:057089026a20 105 send(cid, buf, strlen(buf));
gsfan 12:057089026a20 106 sprintf(buf, "<body><h1>%s</h1></body></html>\r\n", msg);
gsfan 12:057089026a20 107 send(cid, buf, strlen(buf));
gsfan 12:057089026a20 108 wait_ms(100);
gsfan 12:057089026a20 109 close(cid);
gsfan 12:057089026a20 110 // WARN("%d.%d.%d.%d ", _httpd[cid].host.getIp()[0], _httpd[cid].host.getIp()[1], _httpd[cid].host.getIp()[2], _httpd[cid].host.getIp()[3]);
gsfan 12:057089026a20 111 // WARN("%s %s %d %d -\r\n", _httpd[cid].type == GSPROT_HTTPGET ? "GET" : "POST", _httpd[cid].uri, _httpd[cid].length, err);
gsfan 12:057089026a20 112 }
gsfan 12:057089026a20 113
gsfan 12:057089026a20 114 int GSwifi::httpdGetHandler (const char *uri) {
gsfan 12:057089026a20 115 int i;
gsfan 12:057089026a20 116
gsfan 12:057089026a20 117 for (i = 0; i < _handler_count; i ++) {
gsfan 12:057089026a20 118 if (strncmp(uri, _httpd_handler[i].uri, strlen(_httpd_handler[i].uri)) == NULL) {
gsfan 12:057089026a20 119 // found
gsfan 12:057089026a20 120 return i;
gsfan 12:057089026a20 121 }
gsfan 12:057089026a20 122 }
gsfan 12:057089026a20 123 return -1;
gsfan 12:057089026a20 124 }
gsfan 12:057089026a20 125
gsfan 12:057089026a20 126 int GSwifi::httpdAttach (const char *uri, const char *dir) {
gsfan 12:057089026a20 127 if (_handler_count < CFG_HTTPD_HANDLER_NUM) {
gsfan 12:057089026a20 128 _httpd_handler[_handler_count].uri = (char*)malloc(strlen(uri) + 1);
gsfan 12:057089026a20 129 strcpy(_httpd_handler[_handler_count].uri, uri);
gsfan 12:057089026a20 130 _httpd_handler[_handler_count].dir = (char*)malloc(strlen(dir) + 1);
gsfan 12:057089026a20 131 strcpy(_httpd_handler[_handler_count].dir, dir);
gsfan 12:057089026a20 132 _httpd_handler[_handler_count].func = NULL;
gsfan 15:086d1a33a197 133 _httpd_handler[_handler_count].ws = 0;
gsfan 12:057089026a20 134 DBG("httpdAttach %s %s\r\n", _httpd_handler[_handler_count].uri, _httpd_handler[_handler_count].dir);
gsfan 12:057089026a20 135 _handler_count ++;
gsfan 12:057089026a20 136 return 0;
gsfan 12:057089026a20 137 } else {
gsfan 12:057089026a20 138 return -1;
gsfan 12:057089026a20 139 }
gsfan 12:057089026a20 140 }
gsfan 12:057089026a20 141
gsfan 15:086d1a33a197 142 int GSwifi::httpdAttach (const char *uri, void (*funcCgi)(int), int ws) {
gsfan 12:057089026a20 143 if (_handler_count < CFG_HTTPD_HANDLER_NUM) {
gsfan 12:057089026a20 144 _httpd_handler[_handler_count].uri = (char*)malloc(strlen(uri) + 1);
gsfan 12:057089026a20 145 strcpy(_httpd_handler[_handler_count].uri, uri);
gsfan 12:057089026a20 146 _httpd_handler[_handler_count].dir = NULL;
gsfan 12:057089026a20 147 _httpd_handler[_handler_count].func = funcCgi;
gsfan 15:086d1a33a197 148 _httpd_handler[_handler_count].ws = ws;
gsfan 12:057089026a20 149 DBG("httpdAttach %s %08x\r\n", _httpd_handler[_handler_count].uri, _httpd_handler[_handler_count].func);
gsfan 12:057089026a20 150 _handler_count ++;
gsfan 12:057089026a20 151 return 0;
gsfan 12:057089026a20 152 } else {
gsfan 12:057089026a20 153 return -1;
gsfan 12:057089026a20 154 }
gsfan 12:057089026a20 155 }
gsfan 12:057089026a20 156
gsfan 15:086d1a33a197 157 const char *GSwifi::httpdGetFilename (int cid) {
gsfan 15:086d1a33a197 158 return _httpd[cid].filename;
gsfan 15:086d1a33a197 159 }
gsfan 15:086d1a33a197 160
gsfan 15:086d1a33a197 161 const char *GSwifi::httpdGetQuerystring (int cid) {
gsfan 15:086d1a33a197 162 return _httpd[cid].querystring;
gsfan 15:086d1a33a197 163 }
gsfan 12:057089026a20 164
gsfan 12:057089026a20 165 #define MIMETABLE_NUM 9
gsfan 12:057089026a20 166 char *GSwifi::mimetype (char *file) {
gsfan 12:057089026a20 167 static const struct MIMETABLE {
gsfan 12:057089026a20 168 const char ext[5];
gsfan 12:057089026a20 169 const char type[24];
gsfan 12:057089026a20 170 } mimetable[MIMETABLE_NUM] = {
gsfan 12:057089026a20 171 {"txt", "text/plain"}, // default
gsfan 12:057089026a20 172 {"html", "text/html"},
gsfan 12:057089026a20 173 {"htm", "text/html"},
gsfan 12:057089026a20 174 {"css", "text/css"},
gsfan 12:057089026a20 175 {"js", "application/javascript"},
gsfan 12:057089026a20 176 {"jpg", "image/jpeg"},
gsfan 12:057089026a20 177 {"png", "image/png"},
gsfan 12:057089026a20 178 {"gif", "image/gif"},
gsfan 12:057089026a20 179 {"ico", "image/x-icon"},
gsfan 12:057089026a20 180 };
gsfan 12:057089026a20 181 int i, j;
gsfan 12:057089026a20 182
gsfan 12:057089026a20 183 for (i = 0; i < MIMETABLE_NUM; i ++) {
gsfan 12:057089026a20 184 j = strlen(mimetable[i].ext);
gsfan 12:057089026a20 185 if (file[strlen(file) - j - 1] == '.' &&
gsfan 12:057089026a20 186 strnicmp(&file[strlen(file) - j], mimetable[i].ext, j) == NULL) {
gsfan 12:057089026a20 187 return (char*)mimetable[i].type;
gsfan 12:057089026a20 188 }
gsfan 12:057089026a20 189 }
gsfan 12:057089026a20 190 return (char*)mimetable[0].type;
gsfan 12:057089026a20 191 }
gsfan 12:057089026a20 192
gsfan 12:057089026a20 193 int GSwifi::strnicmp (const char *p1, const char *p2, int n) {
gsfan 12:057089026a20 194 int i, r = -1;
gsfan 12:057089026a20 195 char c1, c2;
gsfan 12:057089026a20 196
gsfan 12:057089026a20 197 for (i = 0; i < n; i ++) {
gsfan 12:057089026a20 198 c1 = (p1[i] >= 'a' && p1[i] <= 'z') ? p1[i] - ('a' - 'A'): p1[i];
gsfan 12:057089026a20 199 c2 = (p2[i] >= 'a' && p2[i] <= 'z') ? p2[i] - ('a' - 'A'): p2[i];
gsfan 12:057089026a20 200 r = c1 - c2;
gsfan 12:057089026a20 201 if (r) break;
gsfan 12:057089026a20 202 }
gsfan 12:057089026a20 203 return r;
gsfan 12:057089026a20 204 }
gsfan 12:057089026a20 205 #endif