embedded Web site ,files store on SD card

Dependencies:   sd-driver

Revision:
0:9f5b2dd88884
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Apr 19 13:36:33 2018 +0000
@@ -0,0 +1,222 @@
+
+#include "mbed.h"
+#include "EthernetInterface.h"
+#include "TCPServer.h"
+#include "TCPSocket.h"
+#include "SDBlockDevice.h"
+#include "FATFileSystem.h" 
+#include <stdio.h>
+#include <string.h>
+#define HTTPD_SERVER_PORT   80
+#define HTTPD_MAX_REQ_LENGTH   1024
+#define HTTPD_MAX_HDR_LENGTH   255
+#define HTTPD_MAX_FNAME_LENGTH   127
+#define HTTPD_MAX_DNAME_LENGTH   127
+static const char*          mbedIp       = "192.168.11.102";  //IP
+static const char*          mbedMask     = "255.255.255.0";  // Mask
+static const char*          mbedGateway  = "192.168.11.1";    //Gateway
+char buffer[HTTPD_MAX_REQ_LENGTH+1];
+char httpHeader[HTTPD_MAX_HDR_LENGTH+1];
+char fileName[HTTPD_MAX_FNAME_LENGTH+1];
+char dirName[HTTPD_MAX_DNAME_LENGTH+1];
+char *uristr;
+char *eou;
+char *qrystr;
+DigitalOut myled(PF_12);
+TCPServer server;
+TCPSocket client;
+SocketAddress client_addr;
+SDBlockDevice sd(PC_12,PC_11,PC_10,PC_9,40000000,40000000);
+ FATFileSystem fs("sd", &sd);
+ Mutex sd_mutex;
+void geturistr(char *reqstr,char * uri,int n)
+ { int i;
+   char * p;
+  
+   p=uri;
+     i=0;
+     while(i<n)
+     {
+        if (*p=='/') i++;
+        p++;
+     
+     }
+   while((*p!='/')&&(*p!=0)) 
+      *reqstr++=*p++;
+    *reqstr=0x00;
+    
+     }
+int getparamName(char *name,char * params)
+{ int i=0;
+char *p;
+char *n;
+p=params;
+n=name;
+   while(*p!='=')
+     { 
+     *n++=*p++;
+     i++;
+     }
+      *n=0x00;
+      i++;
+      return i;
+} 
+int getparamValue(char *value,char * param)
+{ int i=0;
+char *p;
+char *v;
+p=param;
+v=value;
+   while((*p!='&')&&(*p!=0x00))
+    { 
+     *v++=*p++;
+    i++;
+    }
+      *v=0x00;
+      return i;
+}        
+bool response_File(char * filename,const char *type)
+{int n;
+  FILE *fp = fopen(filename, "r");
+  if (fp==NULL) return false;
+if (strcmp(type,"text/css")||strcmp(type,"text/javascript"))
+    sprintf(httpHeader,"HTTP/1.1 200 OK\r\nContent-Type: %s\r\nCache-Control: max-age=2592000, public\r\n\r\n",type);
+    else
+     sprintf(httpHeader,"HTTP/1.1 200 OK\r\nContent-Type: %s\r\n",type);
+  
+            client.send(httpHeader,strlen(httpHeader));
+           // sd_mutex.lock();     
+           
+             n=1024;
+             while (n == 1024) {
+                n = fread(buffer, sizeof( char ), 1024, fp);
+                client.send(buffer, n);
+                   }
+          fclose(fp);   
+        //  sd_mutex.unlock();
+        return true;  
+  }  
+  void getEXT( char *ext,char * fileName)
+  {
+    char *f;
+    char *e;
+e=ext;
+f=fileName;
+while(*f!='.')
+    f++;
+    f++;
+    while(*f!=0x00)
+      *e++=*f++;
+   *e=0x00;
+      }  
+     
+int main()
+{   char fileName[32];
+    char reqstr[32];
+    char temp[32];
+    char ext[8];
+    char *params; 
+    bool res;  
+    printf("Basic HTTP server example\n");
+    EthernetInterface eth;
+    eth.set_network(mbedIp,mbedMask,mbedGateway);
+    eth.connect();
+    printf("The target IP address is '%s'\n", eth.get_ip_address());      
+    /* Open the server on ethernet stack */
+    server.open(&eth);
+    
+    /* Bind the HTTP port (TCP 80) to the server */
+    server.bind(eth.get_ip_address(), 80);
+    
+    /* Can handle 5 simultaneous connections */
+    server.listen(8);
+ myled=1;
+    while (true) {
+        server.accept(&client, &client_addr);
+     //   client.set_blocking(true);
+        printf("Connection from: %s\r\n", client_addr.get_ip_address());   
+     // while (true) {
+           int n = client.recv(buffer, sizeof(buffer));
+        //    if (n <= 0) break;         
+           if (strncmp(buffer, "GET ", 4)==0)
+           {
+            uristr = buffer + 4;
+            eou = strstr(uristr, " ");
+            *eou = 0;
+           geturistr(reqstr,uristr,1);
+           printf("request=%s+\n",uristr);
+           if (strcmp(reqstr,"index")==0){     //GET index.html
+          // printf("OK\n");
+       res=   response_File("/sd/views/index.html","text/html");
+             } else
+          if  (strcmp(reqstr,"images")==0){   //GET images
+                  geturistr(reqstr,uristr,2);
+                // printf("image name%s\n",reqstr);
+                strcpy(fileName,"/sd/images/");
+                strcat(fileName,reqstr);
+               // printf("filename=%s\n",fileName);
+               getEXT(ext,fileName);
+               strcpy(temp,"image/");
+               strcat(temp,ext);
+           res=      response_File(fileName,temp);
+             }else
+           if  (strcmp(reqstr,"css")==0){  //GET css
+                  geturistr(reqstr,uristr,2);
+                strcpy(fileName,"/sd/css/");
+                strcat(fileName,reqstr);
+                response_File(fileName,"text/css");
+               } else 
+            if  (strcmp(reqstr,"js")==0){ //GET  js
+                  geturistr(reqstr,uristr,2);
+                strcpy(fileName,"/sd/js/");
+                strcat(fileName,reqstr);
+               res=  response_File(fileName,"text/javascript");
+               } else
+        //  if  (strcmp(reqstr,"views")==0){ //GET  js
+               { 
+                // geturistr(reqstr,uristr,2);
+                strcpy(fileName,"/sd/views/");
+                strcat(fileName,reqstr);
+              //   strcat(fileName,".html");
+                 printf("fileName=%s\n",fileName);
+               res=  response_File(fileName,"text/html");
+             
+                }
+              if (!res)
+              {
+                   sprintf(httpHeader,"HTTP/1.1 404 Not Found\r\nContent-Type: text/html\r\n");
+                    client.send(httpHeader,strlen(httpHeader));           
+                      client.send("Page not found!\n",16);
+                  }  
+            }   else
+              if (strncmp(buffer, "PUT ", 4)==0){
+                uristr = buffer + 4;
+                eou = strstr(uristr, " ");
+                *eou = 0;
+                geturistr(reqstr,uristr,1);
+                 printf("PUT%s+\n",uristr);
+               if (strcmp(reqstr,"LEDControl")==0){ 
+                 geturistr(reqstr,uristr,2);
+                 printf("%s\n",reqstr);
+                 params= reqstr ;
+                 int n=getparamName(temp, params);
+                 printf("name=%s\n",temp);
+                 params=params+n;
+                   n=getparamValue(temp,params);
+                 printf("val=%s\n",temp);
+                     if (strcmp(temp,"1")==0)
+                    { myled=1;}
+                     else {myled=0;}
+                       sprintf(httpHeader,"HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n");
+                       client.send(httpHeader,strlen(httpHeader));           
+                      client.send("OK\n",3);
+                 }
+               }else {
+               sprintf(httpHeader,"HTTP/1.1 200 OK\r\nContent-Type: text/html\r\nConnection: Close\r\n\r\n");
+            client.send(httpHeader,strlen(httpHeader));           
+            client.send("BAD The World!\n",15);
+             }      
+    //     }             
+      client.close();   
+    }
+}