Sending data to web using arduino GSM module using GPRS

#include <SoftwareSerial.h>
SoftwareSerial GSM(9, 10); // RX, TX
int sensor=5;

enum _parseState {
PS_DETECT_MSG_TYPE,

PS_IGNORING_COMMAND_ECHO,

PS_HTTPACTION_TYPE,
PS_HTTPACTION_RESULT,
PS_HTTPACTION_LENGTH,

PS_HTTPREAD_LENGTH,
PS_HTTPREAD_CONTENT
};

byte parseState = PS_DETECT_MSG_TYPE;
char buffer[80];
 byte pos = 0;

 int contentLength = 0;

 void resetBuffer() {
  memset(buffer, 0, sizeof(buffer));
  pos = 0;
 }

  void sendGSM(const char* msg, int waitMs = 500) {
  GSM.println(msg);
 delay(waitMs);
 while(GSM.available()) {
  parseATText(GSM.read());
   }
   }

 void setup()
 {
   GSM.begin(9600);
  Serial.begin(9600);

  sendGSM("AT+SAPBR=3,1,\"APN\",\"zongwap\"");  
 sendGSM("AT+SAPBR=1,1",300);
sendGSM("AT+HTTPINIT");  
sendGSM("AT+HTTPPARA=\"CID\",1");
sendGSM("AT+HTTPPARA=\"URL\",\"http://ift.tt/2rNiZnn?
sensor1="" + sensor + ""\"""");
  sendGSM("AT+HTTPACTION=0"); 
  }

void loop()
   {  
   while(GSM.available()) {
    parseATText(GSM.read());
    }
   }

  void parseATText(byte b) {

 buffer[pos++] = b;

    if ( pos >= sizeof(buffer) )
    resetBuffer(); // just to be safe

   /*
  // Detailed debugging
    Serial.println();
   Serial.print("state = ");
   Serial.println(state);
   Serial.print("b = ");
   Serial.println(b);
  Serial.print("pos = ");
  Serial.println(pos);
  Serial.print("buffer = ");
  Serial.println(buffer);*/

  switch (parseState) {
  case PS_DETECT_MSG_TYPE: 
    {
  if ( b == '\n' )
    resetBuffer();
  else {        
    if ( pos == 3 && strcmp(buffer, "AT+") == 0 ) {
      parseState = PS_IGNORING_COMMAND_ECHO;
    }
    else if ( b == ':' ) {
      //Serial.print("Checking message type: ");
      //Serial.println(buffer);

      if ( strcmp(buffer, "+HTTPACTION:") == 0 ) {
        Serial.println("Received HTTPACTION");
        parseState = PS_HTTPACTION_TYPE;
      }
      else if ( strcmp(buffer, "+HTTPREAD:") == 0 ) {
        Serial.println("Received HTTPREAD");            
        parseState = PS_HTTPREAD_LENGTH;
      }
      resetBuffer();
    }
  }
}
break;

   case PS_IGNORING_COMMAND_ECHO:
     {
     if ( b == '\n' ) {
    Serial.print("Ignoring echo: ");
    Serial.println(buffer);
    parseState = PS_DETECT_MSG_TYPE;
    resetBuffer();
  }
}
break;

  case PS_HTTPACTION_TYPE:
   {
  if ( b == ',' ) {
    Serial.print("HTTPACTION type is ");
    Serial.println(buffer);
    parseState = PS_HTTPACTION_RESULT;
    resetBuffer();
  }
}
break;

 case PS_HTTPACTION_RESULT:
   {
  if ( b == ',' ) {
    Serial.print("HTTPACTION result is ");
    Serial.println(buffer);
    parseState = PS_HTTPACTION_LENGTH;
    resetBuffer();
  }
}
break;

  case PS_HTTPACTION_LENGTH:
  {
  if ( b == '\n' ) {
    Serial.print("HTTPACTION length is ");
    Serial.println(buffer);

    // now request content
    GSM.print("AT+HTTPREAD=0,");
    GSM.println(buffer);

    parseState = PS_DETECT_MSG_TYPE;
    resetBuffer();
  }
}
break;

  case PS_HTTPREAD_LENGTH:
    {
  if ( b == '\n' ) {
    contentLength = atoi(buffer);
    Serial.print("HTTPREAD length is ");
    Serial.println(contentLength);

    Serial.print("HTTPREAD content: ");

    parseState = PS_HTTPREAD_CONTENT;
    resetBuffer();
  }
}
break;

   case PS_HTTPREAD_CONTENT:
    {
  // for this demo I'm just showing the content bytes in the serial monitor
  Serial.write(b);

  contentLength--;

  if ( contentLength <= 0 ) {

    // all content bytes have now been read

    parseState = PS_DETECT_MSG_TYPE;
    resetBuffer();
  }
}
break;
 }
}

i even don't understand the code but i get the idea and when i am trying to post the data to web its not working i don't know what's wrong with it i am getting web content back but i can't post data to the web i tried both get and post method non of them brought luck to me