NAME
CGI::ContactForm - Generate a web contact form
SYNOPSIS
use CGI::ContactForm;
contactform (
recname => 'John Smith',
recmail => 'john.smith@example.com',
styleurl => '/style/ContactForm.css',
);
DESCRIPTION
This module generates a contact form for the web when the routine contactform()
is called from a CGI script. Arguments are passed to the module as a list of key/value pairs.
CGI::ContactForm
sends a well formated (plain text format=flowed in accordance with RFC 2646) email message, with the sender's address in the From:
header.
By default the sender gets a bcc
copy. If the email address stated by the sender is invalid, by default the failure message is sent to the recipient address, through which you know that you don't need to bother with a reply, at least not to that address... However, by setting the nocopy
argument you can prevent the sender copy from being sent.
Arguments
CGI::ContactForm
takes the following arguments:
Default value
=============
Compulsory
----------
recname (none)
recmail (none)
Optional
--------
smtp 'localhost'
styleurl (none)
returnlinktext 'Main Page'
returnlinkurl '/'
subject (none)
nocopy 0
bouncetosender 0
formtmplpath (none)
resulttmplpath (none)
maxsize 100 (KiB)
maxperhour 5 (messages per hour per host)
tempdir (none)
spamfilter '(?is:</a>|\[/url]|https?:/(?:.+https?:/){3})' (Perl regex)
Additional arguments, intended for forms at non-English sites
-------------------------------------------------------------
title 'Send email to'
namelabel 'Your name:'
emaillabel 'Your email:'
subjectlabel 'Subject:'
msglabel 'Message:'
reset 'Reset'
send 'Send'
erroralert 'Fields with %s need to be filled or corrected.'
marked 'marked labels'
thanks 'Thanks for your message!'
sent_to 'The message was sent to %s with a copy to %s.'
sent_to_short 'The message was sent to %s.'
encoding 'ISO-8859-1'
Customization
There are only two compulsory arguments. The example CGI script contact.pl
, that is included in the distribution, also uses the styleurl
argument, assuming the use of the enclosed style sheet ContactForm.css
. That results in a decently styled form with a minimum of effort.
If the default value localhost
isn't sufficient to identify the local SMTP server, you may need to explicitly state its host name or IP address via the smtp
argument.
As you can see from the list over available arguments, all the text strings can be changed, and as regards the presentation, you can of course edit the style sheet to your liking.
If you want to modify the HTML markup, you can have CGI::ContactForm
make use of one or two templates. The enclosed example templates ContactForm_form.tmpl
and ContactForm_result.tmpl
can be activated via the formtmplpath
respective resulttmplpath
arguments, and used as a starting point for a customized markup.
Spam prevention
Behind the scenes CGI::ContactForm
performs a few checks aiming to complicate and/or discourage abuse in the form of submitted spam messages.
The number of messages that can be sent from the same host is restricted. The default is 5 messages per hour.
A customizable spamfilter is applied to the body of the message. By default it allows max 3 URLs that start with
http://
orhttps://
, and it rejects submissions with</a>
or[/url]
in the message body.When sending a message, the request must include a cookie.
The thought is that normal use, i.e. establishing contact with somebody, should typically not be affected by those checks.
INSTALLATION
Installation with Makefile.PL
Type the following:
perl Makefile.PL
make
make install
Manual Installation
Download the distribution file and extract the contents.
Designate a directory as your local library for Perl modules, for instance
/www/username/cgi-bin/lib
Create the directory
/www/username/cgi-bin/lib/CGI
, and uploadContactForm.pm
to that directory.Create the directory
/www/username/cgi-bin/lib/CGI/ContactForm
, and uploadMHonArc.pm
to that directory.In the CGI scripts that use this module, include a line that tells Perl to look for modules also in your local library, such as
use lib '/www/username/cgi-bin/lib';
Other Installation Matters
If you have previous experience from installing CGI scripts, making contact.pl
(or whichever name you choose) work should be easy. Otherwise, this is a very short lesson:
Upload the CGI file in ASCII transfer mode to your
cgi-bin
.Set the file permission 755 (chmod 755).
If that doesn't do it, there are many CGI tutorials for beginners available on the web. This is one example:
http://my.execpc.com/~keithp/bdlogcgi.htm
On some servers, the CGI file must be located in the cgi-bin
directory (or in a cgi-bin
subdirectory). At the same time it's worth noting, that the style sheet typically needs to be located somewhere outside the cgi-bin
.
DEPENDENCIES
CGI::ContactForm
requires the non-standard modules CGI.pm and Mail::Sender.
AUTHENTICATION
If you have access to a mail server that is configured to automatically accept sending messages from a CGI script to any address, you don't need to worry about authentication. Otherwise you need to somehow authenticate to the server, for instance by adding something like this right after the use CGI::ContactForm;
line in contact.pl
:
%Mail::Sender::default = (
auth => 'LOGIN',
authid => 'username',
authpwd => 'password',
);
auth
is the SMTP authentication protocol. Common protocols are LOGIN
and PLAIN
. You may need help from the mail server's administrator to find out which protocol and username/password pair to use.
If there are multiple forms, a more convenient way to deal with a need for authentication may be to make use of the Sender.config
file that is included in the distribution. You just edit it and upload it to the same directory as the one where Sender.pm
is located.
See the Mail::Sender documentation for further guidance.
AUTHOR, COPYRIGHT AND LICENSE
Copyright (c) 2003-2019 Gunnar Hjalmarsson
http://www.gunnar.cc/cgi-bin/contact.pl
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.