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CGI, cookies, sendmail, HTML attachments, searching txt files,

by dumbadam (Novice)
on Oct 26, 2001 at 11:16 UTC ( #121595=perlquestion: print w/replies, xml ) Need Help??

dumbadam has asked for the wisdom of the Perl Monks concerning the following question:

Three questions, Sorry!

1) I have set up a form so that people can submit there email addresses to my mailing list.
Ok I have been messing around with an autoreply and need to be able to send an "HTML" file with the autoreply thru sendmail. This way you get a GREAT email message instead of yucky text-on-text

Does anyone know how to do this?

2)Does anyone have a snippet of code that will check a existing .txt file for the email address entered and return "already added" to the user if they already added there email address? I cant seem to get one right.

3)Anyone know why The cookie i set below for +1y seems to not be there after i close my browser? Is it the way im reading it? I cant seem to use HTTP::cookie so i use $q->cookie().

heres a sample:
#!/usr/local/bin/perl use CGI; $q = new CGI; $thefile = "email.txt"; $my_email = "webmaster\@itsmeagain.com"; $email_entered = $q->param('email'); #check for email valid $FORM = $q->param('email') . ","; if ($q->param('email')) { unless ($FORM =~ /\w+@\w+.\w+/) { print $q->header(-type=>'text/html', accept=>'*/*'); print $q->start_html(-title=>'Bad Email'); #print "Content-type: text/html\n\n"; print "<html><head><title>Bad E-mail</title></head>\n" +; print "<body><h1>Bad E-mail</h1><br>The e-mail address + that you've\n"; print "entered,<b><font color='red' size='+3'> $FORM</ +font></b> is invalid. Please click back and\n"; print "try again.\n"; print $q->end_html; exit; } #chk for cookie $JSCRIPT=<<END; function go(){ if (document.referer){ window.parent.location=document.referer; } else{ document.location= "http://www.mysite.com/index2.htm"; } } setTimeout("go()", 5000); END $chkcookie = $q->cookie( "email" ); if ($chkcookie eq $email_entered){ print $q->header(-type=>'text/html', accept=>'*/*'); print $q->start_html(-title=>'Already Entered This Email', script=>$JS +CRIPT); print "<h1><b>You just entered this email address! </h1>---<font size= ++1></b>Click back to continue or wait and I'll send you!"; print $q->end_html; } else { &filewritee; } } else { print $q->header(-type=>'text/html', accept=>'*/*'); print $q->start_html(-title=>'Nothing Entered'); print "<h1>Nothing Entered.</h1><br><br>\n"; print "You didn't enter anything, Pls go back and enter a valid email +address"; print $q->end_html; } sub filewritee{ open (EMAILADDRESS, ">> $thefile") or die "Can't open file: $!"; flock EMAILADDRESS, 2; print EMAILADDRESS $FORM; close EMAILADDRESS; &sendmail; } sub sendmail{ open (MAIL, "| /usr/vde/bin/sendmail -t") or die "couldnt open sendmail: $!"; print MAIL <<EO; To: $email_entered From: $my_email Subject: Weekly mail from me EO open (FILE, "< weekly.htm") or die "Cannot open file: $!"; while (<FILE>) { print MAIL; } close FILE; close (MAIL); &successs; } sub successs{ $JSCRIPTT=<<ENDD; document.cookie = "email=$email_entered", expires="+1y"; ENDD print $q->header(-type=>'text/html', accept=>'*/*'); print $q->start_html(-title=>'-Email Added Successfully!', -script=>$J +SCRIPTT); print "<h1><font color='#000080'>SUCCESS!</h1><br><br>\n"; print <<ENDOF; <p><b>Your Email address: </font><font color='red' size='+2'> \"$email +_entered\" </font><font color='#000080'>was added successfully!<br></ +b> You should be getting your first mail shortly!</p> ENDOF print $q->end_html; exit; }

Replies are listed 'Best First'.
Re: CGI, cookies, sendmail, HTML attachments, searching txt files,
by projekt21 (Friar) on Oct 26, 2001 at 13:17 UTC

    A couple of questions... I'll try to give some comments on the first one:

    That HTML mail might look pretty but I would like to encourage you to send plain ascii, but that is just my humble optinion.

    Maybe you you want to have a look at MIME::Entity and use it to create a RFC compatible email containing both, a text/plain MIME part and a text/html part for those mail clients that support it. MIME::Entity has a well understandable documentation showing you how you create a mail and finally give it to sendmail.

    If you prefer doing that all by yourself, do not forget to set a correct Content-Type in your mail header (look at the headers of some HTML mails you got).

    Hope this helps a bit.

    alex pleiner <alex@zeitform.de>
    zeitform Internet Dienste

Re: CGI, cookies, sendmail, HTML attachments, searching txt files,
by projekt21 (Friar) on Oct 26, 2001 at 13:20 UTC

    For question No. 3:

    I use something like that to read and write cookies:

    use CGI; my $q = new CGI; # read cookie my %cookies = $q->cookie(-name => "test_foo"); my $bar = $cookies{bar}; my $foo = $cookies{foo}; # write cookie my $cookie = $q->cookie(-name => "test_foo", -value => { foo => "foo", bar => "bar", }, -expires => '+10m'); print $q->header(-cookie=>$cookie, -expires => "now");

    alex pleiner <alex@zeitform.de>
    zeitform Internet Dienste

Re: CGI, cookies, sendmail, HTML attachments, searching txt files,
by projekt21 (Friar) on Oct 26, 2001 at 13:26 UTC

    Question 2 (code not tested):

    sub checkemail { my $email = shift; open IN, "/some/textfile.txt" or die "errormessage"; while (<IN>) { chomp; return "already added" if $email eq $_; # if textfile.txt has one email address per line # and nothing else } close IN; return; }

    Update (thanks to Hofmator for showing the obvious): dropped that error

    This can be improved, but it should work. Hope it helps.

    alex pleiner <alex@zeitform.de>
    zeitform Internet Dienste

      return "already added" if $email eq chomp($_);

      This has to be replaced by

      chomp; return "already added" if $email eq $_;
      as chomp returns the number of characters chomped. Common mistake ;-)

      -- Hofmator

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