// Fig. 19.16: writecookie.cpp // Program to write a cookie to a client's machine. #include using std::cin; using std::cout; #include using std::string; #include using std::getenv; using std::atoi; int main() { char query[ 1024 ] = ""; string dataString = ""; string nameString = ""; string ageString = ""; string colorString = ""; int contentLength = 0; // expiration date of cookie string expires = "Friday, 14-MAY-10 16:00:00 GMT"; // data was entered if ( getenv( "CONTENT_LENGTH" ) ) { contentLength = atoi( getenv( "CONTENT_LENGTH" ) ); cin.read( query, contentLength ); // read data from standard input dataString = query; // search string for data and store locations int nameLocation = dataString.find( "name=" ) + 5; int endName = dataString.find( "&" ); int ageLocation = dataString.find( "age=" ) + 4; int endAge = dataString.find( "&color" ); int colorLocation = dataString.find( "color=" ) + 6; int endColor = dataString.find( "&button" ); // get value for user's name nameString = dataString.substr( nameLocation, endName - nameLocation ); if ( ageLocation > 0 ) // get value for user's age ageString = dataString.substr( ageLocation, endAge - ageLocation ); if ( colorLocation > 0 ) // get value for user's favorite color colorString = dataString.substr( colorLocation, endColor - colorLocation ); // set cookie cout << "Set-Cookie: Name=" << nameString << "age:" << ageString << "color:" << colorString << "; expires=" << expires << "; path=\n"; } // end if cout << "Content-Type: text/html\n\n"; // output HTTP header // output XML declaration and DOCTYPE cout << "" << ""; // output html element and some of its contents cout << "" << "Cookie Saved"; // output user's information cout << "

A cookie has been set with the following" << " data:

Name: " << nameString << "

" << "

Age: " << ageString << "

" << "

Color: " << colorString << "

" << "

Click " << "here to read saved cookie data.

"; 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. * **************************************************************************/