gs fan
GainSpan Wi-Fi library see: http://mbed.org/users/gsfan/notebook/gainspan_wifi/
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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/
Information
Please change the baud rate in advance.
- ATB=115200
- AT&W0
It may be better and sometimes faster.
GSwifi gs(p13, p14, baud);
Heavily modified new library: http://mbed.org/users/gsfan/code/GSwifi
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/
Information
モジュールはあらかじめ次のコマンドでボーレートを変更しておく。
- ATB=115200
- AT&W0
場合によってはもっと高速の方がいいかもしれない。クラス宣言時にレート設定をする。
GSwifi gs(p13, p14, baud);
大幅に更新された新しいライブラリ: http://mbed.org/users/gsfan/code/GSwifi
Diff: GSwifi_httpd.cpp
- Revision:
- 19:cad912f5a6ba
- Parent:
- 18:4b97804c37d1
- Child:
- 20:151b5a4fdd29
diff -r 4b97804c37d1 -r cad912f5a6ba GSwifi_httpd.cpp
--- a/GSwifi_httpd.cpp Thu Nov 01 02:55:57 2012 +0000
+++ b/GSwifi_httpd.cpp Tue Nov 06 08:54:19 2012 +0000
@@ -8,6 +8,19 @@
#define HTTPD_BODY 3
#define HTTPD_ERROR 4
+#define MIMETABLE_NUM 6
+struct {
+ char ext[5];
+ char type[24];
+} mimetable[MIMETABLE_NUM] = {
+ {".txt", "text/plain"},
+ {".htm", "text/html"},
+ {".css", "text/css"},
+ {".jpg", "image/jpeg"},
+ {".png", "image/png"},
+ {".gif", "image/gif"},
+};
+
int GSwifi::httpd (int port) {
int i;
char cmd[GS_CMD_SIZE];
@@ -25,6 +38,13 @@
if (command(cmd, GSRES_CONNECT)) return -1;
newSock(_cid, GSTYPE_SERVER, GSPROT_HTTPD, NULL);
+/*
+// newSock(_cid, GSTYPE_SERVER, GSPROT_HTTPD, &GSwifi::poll_httpd);
+// newSock(_cid, GSTYPE_SERVER, GSPROT_HTTPD, reinterpret_cast<onGsReceiveFunc>(&GSwifi::poll_httpd));
+ void (GSwifi::*f1)(int,int) = &GSwifi::poll_httpd;
+ onGsReceiveFunc f2 = reinterpret_cast<onGsReceiveFunc>(f1);
+ newSock(_cid, GSTYPE_SERVER, GSPROT_HTTPD, f2);
+*/
return _cid;
}
@@ -64,11 +84,11 @@
switch (_httpd[cid].mode) {
case HTTPD_REQUEST:
if (strncmp(_httpd[cid].buf, "GET ", 4) == 0) {
- _httpd[cid].type = 0;
+ _httpd[cid].type = GSPROT_HTTPGET;
j = 4;
} else
if (strncmp(_httpd[cid].buf, "POST ", 5) == 0) {
- _httpd[cid].type = 1;
+ _httpd[cid].type = GSPROT_HTTPPOST;
j = 5;
} else {
_httpd[cid].mode = HTTPD_ERROR;
@@ -94,7 +114,7 @@
case HTTPD_HEAD:
if (_httpd[cid].len == 0) {
_httpd[cid].mode = HTTPD_BODY;
- if (_httpd[cid].length == 0) flg = 1;
+ if (_httpd[cid].length == 0) flg = 1; // no body
} else
if (strncmp(_httpd[cid].buf, "Content-length: ", 16) == 0) {
_httpd[cid].length = atoi(&_httpd[cid].buf[16]);
@@ -122,27 +142,41 @@
for (i = 0; i < _handler_count; i ++) {
j = strlen(_handler[i].uri);
if (strncmp(_httpd[cid].uri, _handler[i].uri, j) == NULL) {
+ // found
+ _httpd[cid].host = _gs_sock[cid].host;
+ _httpd[cid].file = &_httpd[cid].uri[j];
+ _httpd[cid].query = NULL;
+ for (; j < strlen(_httpd[cid].uri); j ++) {
+ if (_httpd[cid].uri[j] == '?') {
+ // query_string
+ _httpd[cid].uri[j] = 0;
+ _httpd[cid].query = &_httpd[cid].uri[j + 1];
+ break;
+ }
+ }
+
if (_handler[i].dir) {
// file
- httpd_request(cid, _handler[i].dir, &_httpd[cid].uri[j], _httpd[cid].keepalive);
+ httpd_request(cid, &_httpd[cid], _handler[i].dir);
flg = 1;
} else
if (_handler[i].onHttpCgi) {
// cgi
- _handler[i].onHttpCgi(cid, &_httpd[cid].uri[j], _httpd[cid].buf, _httpd[cid].len);
+ _handler[i].onHttpCgi(cid, &_httpd[cid]);
+ _httpd[cid].keepalive = 0;
flg = 1;
}
break;
}
}
if (! flg) {
+ // not found
send_httpd_error(cid, 403);
}
if (_httpd[cid].keepalive) {
_httpd[cid].mode = HTTPD_REQUEST;
_httpd[cid].len = 0;
- _httpd[cid].type = 0;
_httpd[cid].length = 0;
_httpd[cid].keepalive --;
} else {
@@ -158,13 +192,13 @@
}
}
-int GSwifi::httpd_request (int cid, char *dir, char *file, int keep) {
+int GSwifi::httpd_request (int cid, GS_httpd *gshttpd, char *dir) {
FILE *fp;
int i, j;
- char buf[100], tmp[20];
+ char buf[100];
strcpy(buf, dir);
- strcat(buf, file);
+ strcat(buf, gshttpd->file);
if (buf[strlen(buf) - 1] == '/') {
strcat(buf, "index.htm");
}
@@ -172,9 +206,9 @@
fp = fopen(buf, "r");
if (fp) {
- strcpy(buf, "HTTP/1.1 200 OK\r\n");
- send(cid, buf, strlen(buf));
+ send(cid, "HTTP/1.1 200 OK\r\n", 17);
{
+ // file size
j = ftell(fp);
fseek(fp, 0, SEEK_END);
i = ftell(fp);
@@ -182,24 +216,9 @@
}
sprintf(buf, "Content-Length: %d\r\n", i);
send(cid, buf, strlen(buf));
- j = strlen(file);
- if (j == 0 || strncmp(&file[j - 4], ".htm", 4)) {
- strcpy(tmp, "text/html");
- } else
- if (strncmp(&file[j - 4], ".jpg", 4)) {
- strcpy(tmp, "image/jpeg");
- } else
- if (strncmp(&file[j - 4], ".png", 4)) {
- strcpy(tmp, "image/png");
- } else
- if (strncmp(&file[j - 4], ".gif", 4)) {
- strcpy(tmp, "image/gif");
- } else {
- strcpy(tmp, "text/plain");
- }
- sprintf(buf, "Content-Type: %s\r\n", tmp);
+ sprintf(buf, "Content-Type: %s\r\n", mimetype(gshttpd->file));
send(cid, buf, strlen(buf));
- if (keep) {
+ if (gshttpd->keepalive) {
strcpy(buf, "Connection: Keep-Alive\r\n");
} else {
strcpy(buf, "Connection: close\r\n");
@@ -223,6 +242,18 @@
return -1;
}
+char *GSwifi::mimetype (char *file) {
+ int i, j;
+
+ for (i = 0; i < MIMETABLE_NUM; i ++) {
+ j = strlen(mimetable[i].ext);
+ if (strncmp(&file[strlen(file) - j], mimetable[i].ext, j) == NULL) {
+ return mimetable[i].type;
+ }
+ }
+ return mimetable[0].type;
+}
+
void GSwifi::send_httpd_error (int cid, int err) {
char buf[100], msg[30];
@@ -256,7 +287,7 @@
close(cid);
}
-int GSwifi::attach_httpd (char *uri, char *dir) {
+int GSwifi::attach_httpd (const char *uri, const char *dir) {
if (_handler_count < HTTPD_HANDLE) {
_handler[_handler_count].uri = new char[strlen(uri) + 1];
strcpy(_handler[_handler_count].uri, uri);
@@ -270,7 +301,7 @@
}
}
-int GSwifi::attach_httpd (char *uri, onHttpdCgiFunc ponHttpCgi) {
+int GSwifi::attach_httpd (const char *uri, onHttpdCgiFunc ponHttpCgi) {
if (_handler_count < HTTPD_HANDLE) {
_handler[_handler_count].uri = new char[strlen(uri) + 1];
strcpy(_handler[_handler_count].uri, uri);