Cookies management with perl, Programming Languages

Assignment Help:

One of the main strengths of the Perl programming language are its powerful text manipulation features. In this assignment, you will put them to  use for writing a Perl program that can manage a simplified version of the so-called "browser cookies".

These are the specifications for your Perl program:

1.  The file with your program must be named cookiemgr.pl

2.  The program must be invoked as:

cookiemgr.pl cookies_file [options]

The program must check that its first argument exists, is a file and is readable. If not, it must print string:

Error: a valid file must be passed as first argument to the standard output, and exit. The first argument is compulsory while the following arguments are optional. The arguments are described in the following.

3.  File  cookies_file can have any arbitrary name. It must be a file of  text with the following format:

a.  The file consists of an arbitrary number of lines (including, possibly, zero lines).

b.  Each line must contain four fields separated by commas.

c.  The four fields are: cookie name, cookie value, hostname and expiry date.

d.  The first three fields are strings of arbitrary (yet reasonably limited) length; the characters in these strings can be any of: uppercase letters, lowercase letters, decimal digits, the underscore and the dot.

e.  The expiry date field is a string of decimal digits in the so-called  Unix epoch format.

The following example is the ultimate specification for the format of file cookies_file:

SessionID,029380,xyz.org.au,1385874000

ASPX_ANONYMOUS,CjnjrB,xyz.org.au,1356912000

SESSION_COLOUR,red,nosite.com.au,1341014400

SESSION_ACTIVE,FALSE,nosite.com.au,1341014400

username001,massimo.piccardi,hello.uts.edu.au,2145830400

username012,john.smith,hello.uts.edu.au,2145830400

username013,michael.zhang,hello.uts.edu.au,2145830400


Related Discussions:- Cookies management with perl

Visual basic, Lennie McPherson, proprietor of Lennie''s Bail Bonds, needs t...

Lennie McPherson, proprietor of Lennie''s Bail Bonds, needs to calculate the amount due for setting the bail. Lennie requires something of value as collateral, and his fee is 10%

Write a program that makes a drawing of a skyscraper, 1. Write a program th...

1. Write a program that figures out how long it will take to pay off a credit card by making payments of $10 each month. Take care to avoid infinite loops. (How would a bank preven

Explain how web designers can deal with css , Explain, in your own words, ...

Explain, in your own words, how web designers can deal with CSS conflict resolution. What is the order of precedence between the different types of CSS (inline, embedded and extern

Linear homogeneous differential equations, As with 2 nd order differential...

As with 2 nd order differential equations we can't determine a non-homogeneous differential equation unless we can initially solve the homogeneous differential equation. We'll als

Triple eigenvalue with 3 linearly independent eigenvectors, 1 Triple Eigenv...

1 Triple Eigenvalue with 3 Linearly Independent Eigenvectors In this case we will have the eigenvalue l with the three linearly independent eigenvectors  ?h 1 , ?h 2 and  ?h

Cobol, Need help with a cobol program.

Need help with a cobol program.

GUI(VB.NET), Can you please make my assignment in 3 days?I will pay you goo...

Can you please make my assignment in 3 days?I will pay you good

Str_concat procedure, Write a procedure named Str_concat that concatenates ...

Write a procedure named Str_concat that concatenates a source string to the end of a target string. Sufficient space must exist in the target string to accommodate the new characte

insertion sort algortihm, Define a higher order version of the insertion s...

Define a higher order version of the insertion sort algortihm. That is define functions insertBy :: Ord b => (a->b) -> a -> [a] -> [a] inssortBy :: Ord b => (a->b) -> [a] ->

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd