MyOwnHandler.h

00001 #ifndef MYOWNHANDLER_H
00002 #define MYOWNHANDLER_H
00003 
00004 #include "../HTTPRequestHandler.h"
00005 float x,y;
00006 
00007 class MyOwnHandler : public HTTPRequestHandler
00008 {
00009   public: 
00010   MyOwnHandler(const char* rootPath, const char* path, TCPSocket* pTCPSocket)
00011                             : HTTPRequestHandler(rootPath, path, pTCPSocket) {}
00012   virtual ~MyOwnHandler() {}
00013 
00014 //protected:
00015   static inline HTTPRequestHandler* inst(const char* rootPath,
00016                                          const char* path, TCPSocket* pTCPSocket)
00017                          { return new MyOwnHandler(rootPath, path, pTCPSocket); }
00018 
00019   virtual void doGet();
00020   virtual void doPost() {}
00021   virtual void doHead() {}
00022   
00023   virtual void onReadable() {}
00024   virtual void onWriteable() { close(); } // Data has been written,
00025                                           //   we can close the connection
00026   virtual void onClose() {}
00027 };
00028 
00029 void MyOwnHandler::doGet()
00030 {
00031 // To get request data, we use the method path()
00032 // We assume that path() will be:
00033 //       /variable
00034 // or    /variable value
00035 // Get variable string
00036       int endVar = path().find_first_of('%', 1);
00037       string variable = path().substr(1, endVar-1);
00038 // Get value string
00039       string value;
00040       if (endVar!=string::npos) value = path().substr(endVar+3, string::npos);
00041 // Get a pointer on the variable
00042 // The type of the variable must be float
00043       float *ptr = NULL;
00044       if (variable.compare("x")==0) ptr=&x;
00045       else if (variable.compare("y")==0) ptr=&y;
00046 //    else if (variable.compare("variable")==0) ptr=&variable;
00047 // Get the float value and set the variable value
00048       if ((ptr!=NULL)&&(!value.empty())) {
00049           float v;
00050           if (sscanf(value.c_str(), "%f", &v)!=EOF) *ptr=v;
00051       }
00052 // Server response will be the value of the variable
00053       char resp[20];
00054       if (ptr!=NULL) {
00055           sprintf(resp, "%f", *ptr);
00056       } else {
00057           sprintf(resp, "Unknown variable");
00058       }
00059       setContentLen( strlen(resp) );
00060       respHeaders()["Connection"] = "close";
00061       writeData(resp, strlen(resp));
00062 }
00063  #endif