📄 readcookie.cpp
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// Fig. 19.17: readcookie.cpp
// Program to read cookie data.
#include <iostream>
using std::cin;
using std::cout;
#include <string>
using std::string;
#include <cstdlib>
using std::getenv;
int main()
{
string dataString = "";
string nameString = "";
string ageString = "";
string colorString = "";
dataString = getenv( "HTTP_COOKIE" ); // get cookie data
// search through cookie data string
int nameLocation = dataString.find( "Name=" ) + 5;
int endName = dataString.find( "age:" );
int ageLocation = dataString.find( "age:" ) + 4;
int endAge = dataString.find( "color:" );
int colorLocation = dataString.find( "color:" ) + 6;
// store cookie data in strings
nameString = dataString.substr(
nameLocation, endName - nameLocation );
ageString = dataString.substr(
ageLocation, endAge - ageLocation );
colorString = dataString.substr( colorLocation );
cout << "Content-Type: text/html\n\n"; // output HTTP header
// output XML declaration and DOCTYPE
cout << "<?xml version = \"1.0\"?>"
<< "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.1//EN\" "
<< "\"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd\">";
// output html element and some of its contents
cout << "<html xmlns = \"http://www.w3.org/1999/xhtml\">"
<< "<head><title>Read Cookies</title></head><body>";
if ( dataString != "" ) // data was found
cout << "<h3>The following data is saved in a cookie on"
<< " your computer</h3><p>Name: " << nameString << "<br/></p>"
<< "<p>Age: " << ageString << "<br/></p>"
<< "<p>Color: " << colorString << "<br/></p>";
else // no data was found
cout << "<p>No cookie data.</p>";
cout << "</body></html>";
return 0;
} // end main
/**************************************************************************
* (C) Copyright 1992-2005 by Deitel & Associates, Inc. and *
* Pearson Education, Inc. All Rights Reserved. *
* *
* DISCLAIMER: The authors and publisher of this book have used their *
* best efforts in preparing the book. These efforts include the *
* development, research, and testing of the theories and programs *
* to determine their effectiveness. The authors and publisher make *
* no warranty of any kind, expressed or implied, with regard to these *
* programs or to the documentation contained in these books. The authors *
* and publisher shall not be liable in any event for incidental or *
* consequential damages in connection with, or arising out of, the *
* furnishing, performance, or use of these programs. *
**************************************************************************/
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