What Is HTTP::Cookies?

This section describes what is HTTP::Cookies - a Perl class that helps you to extra cookies from HTTP::Response objects, store them and attach them to HTTP::Request objects.

From the previous tutorial, we learned that some Web applications requires us to attach cookies in our HTTP request. To do this, we need to look at the HTTP::Cookies class.

What Is HTTP::Cookies? HTTP::Cookies, developed by Gisle Aas, is a Perl class that helps you to extra cookies from HTTP::Response objects, store them and attach them to HTTP::Request objects. Cookies are a general mechanism which server side connections can use to both store and retrieve information on the client side of the connection.

The current version of HTTP::Cookies is 6.01, which supports the following main properties and methods:

Here is my test program, HTTP-Cookies-Test.pl:

#- HTTP-Cookies-Test.pl
#- Copyright (c) 2014, HerongYang.com, All Rights Reserved.

   use HTTP::Cookies;
   my ($key, $value, $domain) = @ARGV;
   $key = 'sid' unless $key;
   $value = 'WFwRU9CG' unless $value;
   $domain = '.herongyang.com' unless $domain;

   my $jar = HTTP::Cookies->new();
   $jar->load('HTTP-Cookies.jar');
   $jar->set_cookie(0, $key, $value, '/', $domain);
   $jar->save('HTTP-Cookies.jar');

   print($jar->as_string());
   
   exit;

I tested it and it worked ok. Here is my test result:

C:\herong>HTTP-Cookies-Test.pl

Set-Cookie3: sid=WFwRU9CG; path="/"; domain=.herongyang.com; version=0

C:\herong>HTTP-Cookies-Test.pl user Herong .google.com

Set-Cookie3: user=Herong; path="/"; domain=.google.com; version=0
Set-Cookie3: sid=WFwRU9CG; path="/"; domain=.herongyang.com; version=0

Last update: 2014.

Table of Contents

 About This Book

 Perl on Linux Systems

 ActivePerl on Windows Systems

 Data Types: Values and Variables

 Expressions, Operations and Simple Statements

 User Defined Subroutines

 Perl Built-in Debugger

 Name Spaces and Perl Module Files

 Symbolic (or Soft) References

 Hard References - Addresses of Memory Objects

 Objects (or References) and Classes (or Packages)

 Typeglob and Importing Identifiers from Other Packages

 String Built-in Functions and Performance

 File Handles and Data Input/Output

 Open Files in Binary Mode

 Open Directories and Read File Names

 File System Functions and Operations

 Converting Perl Script to Executable Binary

 Using DBM Database Files

 Using MySQL Database Server

 Socket Communication Over the Internet

 XML::Simple Module - XML Parser and Generator

 XML Communication Model

 SOAP::Lite - SOAP Server-Client Communication Module

 Perl Programs as IIS Server CGI Scripts

 CGI (Common Gateway Interface)

 XML-RPC - Remote Procedure Call with XML and HTTP

 RPC::XML - Perl Implementation of XML-RPC

 Integrating Perl with Apache Web Server

 CGI.pm Module for Building Web Pages

LWP::UserAgent and Web Site Testing

 What Is LWP::UserAgent?

 What Is HTTP::Response?

 What Is HTTP::Request?

 LWP-UserAgent-GET.pl - Sending a GET Request

 LWP-UserAgent-GET-Redirect.pl - Following HTTP Redirects

 http-equiv="Refresh" Meta Tag not Followed

 LWP-UserAgent-POST.pl - Posting Form Data

 post() Method not Following Redirect Location

 LWP-UserAgent-POST-Redirect.pl - Posting with Redirects

What Is HTTP::Cookies?

 LWP-UserAgent-Request.pl - GET, POST and Cookies

 LWP-UserAgent-Request.pl - Login to facebook.com

 HTTP::Cookies save() not Saving Temporary Cookies

 LWP-UserAgent-Request-Cookies.pl - Sending Request with Cookies

 References

 PDF Printing Version