EE-WEB Assignment 8

Program 1, 30pts.

Write an application in Java that would generate a fake e- mail bounce. Such an application can be useful in reducing the amount of received SPAM.

Your program should have the GUI that allows to enter your e- mail address, your e-mail SMTP server, and the spamer's address, and looks similar to one shown below:
Visual Descritption of GUI

When the SUBMIT button is clicked the following sequence of events should happen:

The SUBMIT button is disabled
Nine one digit random numbers are generated
A text message is generated in one multiline string variable according to the following specification

replace ***DDDDDD(DDD)*** with the 9 random digits, e.g. 123456(789) . (The same numbers acress the entire message.)
replace *** INSERT spammer'S-EMAIL HERE *** with the e-mail address entered into the appropriate GUI text field
replace *** INSERT YOUR-EMAIL HERE *** with the e-mail address entered into the appropriate GUI text field
The mail should be from Postmaster@*** INSERT YOUR-EMAIL-SERVER HERE ***
replace *** INSERT SPAMMER'S-MESSAGE HERE *** with the actual contents typed or pasted by the user into GUI
The mail should be sent to the address specified in the Spamer's e-mail text field

Tme body (data) of the message should be created based on this template below

From: Mail Administrator <Postmaster@*** INSERT YOUR-EMAIL-SERVER HERE ***>
To: *** INSERT SPAMMER'S-EMAIL HERE ***
Reply-To: Mail Administrator <Postmaster@*** INSERT YOUR-EMAIL-SERVER HERE ***>
Subject: Mail System Error - Returned Mail
MIME-Version: 1.0
Content-Type: multipart/mixed; Boundary="===========================_ _= ***DDDDDD(DDD)***"

--===========================_ _= ***DDDDDD(DDD)***
Content-Type: text/plain

This Message was undeliverable due to the following reason:

Each of the following recipients was rejected by a remote mail server.
The reasons given by the server are included to help you determine why
each recipient was rejected.

    Recipient: <*** INSERT YOUR-EMAIL HERE ***>
    Reason:    5.1.1 <*** INSERT YOUR-EMAIL HERE ***>... User unknown

Please reply to Postmaster@*** INSERT YOUR-EMAIL-SERVER HERE ***
if you feel this message to be in error.

--===========================_ _= ***DDDDDD(DDD)***
Content-Type: message/rfc822
Content-Disposition: attachment

*** INSERT SPAMMER'S-MESSAGE HERE ***
--===========================_ _= ***DDDDDD(DDD)***--

When you test your program and send a bounce to your self the actual complete email message should look similar to this.

The message is sent.
The SUBMIT button is reenabled
Consider some way to indicate problems if the e-mail bounce cannot be sent.

Hints:

Nonblocking GUI or as a last resort Blocking GUI
Sending email. Remember to remove the extended header lines and an empty line generated by the e-mail sending function - those lines are created in the multiline text listed above.
Testing - send a bouce e-mail to yourself. The message that you pasted into the TextArea should be available as a file attachment to the message that you will receive.

Program 2, 10pts.

Write and compile a short program in PERL that reads two lines of text ($a and $b), chomps them, and prints the result of the following operations one per line:

$a , $b
$a . $b
$a + $b
$a - $b
$a * $b
$a / $b
$a % $b
$a == $b
$a <=> $b
$a eq $b
$a cmp $b

Run your program several times for both numeric and non- numeric data. Do the results (including runtime errors) surprise you?

Homework Submission

Attach all source code in files with proper names and extensions (*.html, *.java, *.pl, *.php, .htaccess e.t.c.). Do not ZIP files together or include compiled files (e.g. *.class). In case of Web pages (HTML), dynamic Web pages (HTML, JavaScript, CGI) or Java applets also send the complete URL (including http://) that points to a page on your Web site that demonstrates your homework. Send your homework via e- mail to the instructor at olekmali at cegt201.bradley.edu. Please set the message subject to: web-hw8.

Thank you.

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