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- #!/usr/local/bin/perl
-
- # ======================================================================
- # WebMonitor Standalone Module: mail
- #
- # CGI script for providing form and script
- # to send mail to configured system users
- #
- # required files: mail.list
- # Text file with users nicknames and
- # email addresses in the format of
- # <nickname>:<email address>
- # Keep "mail.list" in same directory as mail script
- # NOTE: you can even have group aliases!
- # just separate the addresses with commas
- # Make sure you 'chmod 0644 mail.list' so the server can read it
- # +-----------------------------------------
- # Example: |webmaster:admin@machine
- # |john-doe:jdoe
- # |carlos:cpero@ncsa.uiuc.edu
- # |group:leader@domain.com,member@domain.com
- # +-----------------------------------------
- # ======================================================================
- # Carlos A. Pero (cpero@ncsa.uiuc.edu) last update 4/30/95
- # ======================================================================
- # Documentation for WebMonitor can be found at
- # <URL:http://hoohoo.ncsa.uiuc.edu/webmonitor/>
- # ======================================================================
- # This code is in the public domain. Specifically, we give to the public
- # domain all rights for future licensing of the source code, all resale
- # rights, and all publishing rights.
- #
- # We ask, but do not require, that the following message be included in
- # all derived works:
- #
- # Portions developed at the National Center for Supercomputing
- # Applications at the University of Illinois at Urbana-Champaign.
- #
- #
- # THE UNIVERSITY OF ILLINOIS GIVES NO WARRANTY, EXPRESSED OR IMPLIED,
- # FOR THE SOFTWARE AND/OR DOCUMENTATION PROVIDED, INCLUDING, WITHOUT
- # LIMITATION, WARRANTY OF MERCHANTABILITY AND WARRANTY OF FITNESS FOR A
- # PARTICULAR PURPOSE.
- # ======================================================================
- # This script can be referenced 2 ways for the best flexibility:
- #
- # DIRECTLY, <A HREF="/cgi-bin/mail?nickname">
- # This will generate an email form for the person named in 'nickname',
- # and if they exist in the 'mail.list' file.
- # If no 'nickname' is specified in the QUERY_STRING when the script is
- # first invoked, or the nickname cannot be found in the 'mail.list',
- # an email form with a SELECT box of all valid nicknames is generated.
- # When the email form is submitted, it will call itself via method of POST,
- # and send the email to the recipient, outputting a confirmation message.
- # If the HTTP_REFERER was trasmitted when the script was first invoked,
- # there will be a hyperlink available to go back to that page (such as
- # the user's home page).
- #
- # FORWARDING RESULTS, <FORM METHOD="POST" ACTION="/cgi-bin/mail?nickname">
- # This will forward the results from the FORM, which can exist anywhere,
- # to the recipient specified by 'nickname'. Since the 'nickname' is in
- # the QUERY_STRING, the FORM *must* use the METHOD="POST", otherwise the
- # recipient's nickname will be blown away.
- # Users may want to include a:
- # <INPUT TYPE="hidden" NAME="next-url" VALUE="/~user/received.html">
- # If this is present in the FORM input, the client will be redirected
- # to this HTML file as a confirmation message instead of the default.
- # In addition, the user can also define any of the following input names
- # in their form to better customize the output mailed back to them.
- # <INPUT TYPE="hidden" NAME="subject" VALUE="My survey results">
- # <INPUT TYPE="hidden" NAME="from-name" VALUE="Average Web user">
- # <INPUT TYPE="hidden" NAME="from-email" VALUE="jdoe@domain.com">
- # These values will then be used in the header of the email message.
- # Otherwise, default values will be substituted.
- # ======================================================================
-
-
- ########################################################################
- ########## Configurable variables ######################################
-
- $SENDMAIL = '/usr/sbin/sendmail';
- # The location of your sendmail binary
-
- ## Also, make sure the first line of this script points
- ## to your PERL binary
-
- ########## Nothing else to change ######################################
- ########################################################################
-
-
- $SCRIPT = $ENV{'SCRIPT_NAME'};
-
- #### Do standard HTTP stuff ####
- &cgi_receive;
- &cgi_decode;
- &cgi_header;
-
- #### Output email form unless you are receiving FORM input already ####
- &print_form unless keys %FORM;
-
- #### Make sure required fields are filled out ####
- if ($FORM{'nickname'}) {
- #### This section is for receiving from this form ####
- &error_blank_field('your name') unless ($FORM{'from-name'});
- &error_blank_field('your email address in the form of <I>name@domain</I>') unless ($FORM{'from-email'} =~ /\@/);
- &error_blank_field('the subject of the message') unless ($FORM{'subject'});
- &error_blank_field('your message') unless ($FORM{'message'});
- }
- else {
- #### This section is for user's forms ####
- #### Such as ACTION="/cgi-bin/mail?carlos" to have results forwarded ####
- $FORM{'nickname'} = $ENV{'QUERY_STRING'};
- }
-
- #### Lookup email address based on 'nickname' ####
- open (MAILNAMES, "mail.list") || die ("$SCRIPT: Can't open mail.list: $!\n");
- while (<MAILNAMES>) {
- chop;
- ($nick, $addr) = split(/:/, $_);
- $ADDRESS{$nick} = $addr;
- }
- close (MAILNAMES);
- &error_blank_field('the nickname of the recipient') unless ($ADDRESS{$FORM{'nickname'}});
-
- #### Make sure all necessary variables for email message are filled in
- ($FORM{'subject'}) || ($FORM{'subject'} = "FORM results");
- ($FORM{'from-email'}) || ($FORM{'from-email'} = $ADDRESS{$FORM{'nickname'}});
- ($FORM{'from-name'}) || ($FORM{'from-name'} = "WebMonitor mail");
-
- open (MAIL, "| $SENDMAIL $ADDRESS{$FORM{'nickname'}}") || die ("$SCRIPT: Can't open $mailprog: $!\n");
- print MAIL "Reply-to: $FORM{'from-email'} ($FORM{'from-name'})\n";
- print MAIL "From: $FORM{'from-email'} ($FORM{'from-name'})\n";
- print MAIL "To: $ADDRESS{$FORM{'nickname'}}\n";
- print MAIL "Subject: $FORM{'subject'}\n";
- print MAIL "\n";
- print MAIL "=============================================================\n";
- print MAIL "NOTE: This message was sent through the WebMonitor mail form\n";
- print MAIL "=============================================================\n";
- print MAIL "REMOTE HOST: $ENV{'REMOTE_HOST'}\n";
- print MAIL "REMOTE ADDRESS: $ENV{'REMOTE_ADDR'}\n";
- print MAIL "HTTP_USER_AGENT: $ENV{'HTTP_USER_AGENT'}\n";
- print MAIL "=============================================================\n";
- print MAIL "\n";
- if ($ENV{'QUERY_STRING'}) {
- &dump_values(FORM, MAIL);
- }
- else {
- print MAIL "$FORM{'message'}\n";
- }
- print MAIL "\n";
- close (MAIL);
-
- #### Now, redirect if "next-url" is included
- if ($FORM{'next-url'}) {
- print "Location: $FORM{'next-url'}\n";
- print "\n";
- exit;
- }
-
- #### Prevent HTML output
- foreach $key (keys %FORM) {
- $FORM{$key} =~ s/</\</g;
- $FORM{$key} =~ s/>/\>/g;
- }
-
- #### Output confirmation message ####
- print qq|<HTML><HEAD><TITLE>WebMonitor-Email Sent</TITLE></HEAD><BODY>\n|;
- print qq|<H1>$ENV{'SERVER_NAME'} Email Sent</H1>\n|;
- print qq|The following message has been sent.\n|;
- print qq|You can now return to <A HREF="$FORM{'previous-url'}">where you were</A>.\n| if ($FORM{'previous-url'});
- print qq|<HR>\n|;
- print "<PRE>\n";
- print "Reply-to: $FORM{'from-email'} ($FORM{'from-name'})\n";
- print "From: $FORM{'from-email'} ($FORM{'from-name'})\n";
- print "To: $ADDRESS{$FORM{'nickname'}}\n";
- print "Subject: $FORM{'subject'}\n";
- print "\n";
- if ($ENV{'QUERY_STRING'}) {
- &dump_values(FORM, STDOUT);
- }
- else {
- print "$FORM{'message'}\n";
- }
- print "\n";
- print "</PRE>\n";
- print "</BODY>\n";
- exit;
-
- #####################################################################
- #### SUBROUTINES ####################################################
-
- sub error_blank_field {
- local($variable) = @_;
- print "\n" if ($FORM{'next-url'});
- print "<HTML><HEAD><TITLE>WebMonitor-Email Error</TITLE></HEAD><BODY>\n";
- print "<H1>Error!</H1>\n";
- print "You did not fill in $variable.\n";
- print "Please go back to the form and do so.\n";
- print "</BODY>\n";
- exit;
- }
-
- sub cgi_header {
- print "Content-type: text/html\n";
- print "\n" unless ($FORM{'next-url'});
- }
-
- sub cgi_receive {
- if ($ENV{'REQUEST_METHOD'} eq "POST") {
- read(STDIN, $incoming, $ENV{'CONTENT_LENGTH'});
- }
- else {
- $incoming = $ENV{'QUERY_STRING'};
- }
- }
-
- sub cgi_decode {
- @pairs = split(/&/, $incoming);
-
- foreach (@pairs) {
- ($name, $value) = split(/=/, $_);
-
- $name =~ tr/+/ /;
- $value =~ tr/+/ /;
- $name =~ s/%([A-F0-9][A-F0-9])/pack("C", hex($1))/gie;
- $value =~ s/%([A-F0-9][A-F0-9])/pack("C", hex($1))/gie;
-
- #### Strip out semicolons unless for special character
- $value =~ s/;/$$/g;
- $value =~ s/&(\S{1,6})$$/&\1;/g;
- $value =~ s/$$/ /g;
-
- $value =~ s/\|/ /g;
- $value =~ s/^!/ /g; ## Allow exclamation points in sentences
-
- #### Skip blank text entry fields
- next if ($value eq "");
-
- #### Check for "assign-dynamic" field names
- #### Mainly for on-the-fly input names, especially checkboxes
- if ($name =~ /^assign-dynamic/) {
- $name = $value;
- $value = "on";
- }
-
- #### Allow for multiple values of a single name
- $FORM{$name} .= ", " if ($FORM{$name});
-
- $FORM{$name} .= $value;
- }
- }
-
- sub dump_values {
- local($env, $handle) = @_;
- eval "\@keys = keys \%$env";
- eval "\@values = values \%$env";
- ($handle eq "STDOUT") && (print $handle "<PRE>\n");
- while ($#keys >= 0) {
- $key = pop(@keys);
- $value = pop(@values);
- if ($value =~ /[\cM\n]/) {
- print $handle "($key)\n";
- print $handle "-" x 70, "\n", $value, "-" x 70, "\n";
- }
- else {
- print $handle "($key) $value\n";
- }
- }
- ($handle eq "STDOUT") && (print $handle "</PRE>\n");
-
- }
-
- sub print_form {
- #### Assign path_info and query_string if necessary
- #### $path_info = "";
-
- open (MAILNAMES, "mail.list") || die ("$SCRIPT: Can't open mail.list: $!\n");
- while (<MAILNAMES>) {
- chop;
- ($nickname, $address) = split(/:/, $_);
- $ADDRESS{$nickname} = $address;
- }
- close (MAILNAMES);
-
- print qq|<HTML><HEAD><TITLE>WebMonitor-Email Form</TITLE></HEAD><BODY>\n|;
- print qq|<H1>$ENV{'SERVER_NAME'} <A HREF="http://hoohoo.ncsa.uiuc.edu/webmonitor/module-mail.html">Email Form</A></H1>\n|;
- print qq|<FORM METHOD="POST" ACTION="$SCRIPT$path_info$query_string">\n|;
- print qq|<HR>\n|;
- print qq|<INPUT TYPE="submit" VALUE="Send Email"> to |;
-
-
- if ($ADDRESS{$ENV{'QUERY_STRING'}}) {
- print qq|<B>$ENV{'QUERY_STRING'}</B> <I>($ADDRESS{$ENV{'QUERY_STRING'}})</I>\n|;
- print qq|<INPUT TYPE="hidden" NAME="nickname" VALUE="$ENV{'QUERY_STRING'}">\n|;
- }
- else {
- print qq|<SELECT NAME="nickname">\n|;
- print qq|<OPTION>Select name...\n|;
- foreach $nickname (sort keys %ADDRESS) {
- print qq|<OPTION>$nickname\n|;
- }
- print qq|</SELECT>\n|;
- }
-
-
- print qq|<HR>\n|;
- print qq|<PRE>|;
- print qq| Your Name: <INPUT NAME="from-name" SIZE="30">\n|;
- print qq|Email Address: <INPUT NAME="from-email" SIZE="30">\n|;
- print qq| Subject: <INPUT NAME="subject" SIZE="40"> <INPUT TYPE="reset" VALUE="Clear Message">\n|;
- print qq|</PRE>\n|;
- print qq|<TEXTAREA NAME="message" ROWS="15" COLS="70"></TEXTAREA>\n|;
- print qq|<INPUT TYPE="hidden" NAME="previous-url" VALUE="$ENV{'HTTP_REFERER'}">\n|;
- print qq|</FORM>\n|;
- print qq|</BODY>\n|;
-
- exit;
- }
-
-