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Solved
How to perform / call CGI_LIB_PL.pl ?
Posted on 1998-12-20
I have an email form which contains the javascript (for user to pick email address) and I downloaded the perl script (CGI_LIB_PL.pl) for decoding the user input for the textarea. I know the CGI_LIB_PL.pl is a standard perl lib which will perform the decoding.
Additional Note:
1. What the /cgi-bin/CGI_LIB_PL.pl does is to convert the input from HTML format into whatever readable (If we do not use this perl script, it can't read some special char. example: all spaces become +'s)
Problem: See the document below. When I use the email form to send out email, it just returned a CGI timeout page for me.
Question:
1. Am I using the right way to call the CGI_LIB_PL.pl?
2. Do I have to use an additional perl script to tell the CGI_LIB_PL.pl what to do? If so, how?
Please see the following
==========================
function doMail()
{
// Reset each variable each time button is clicked
address="";
checked1=false;
checked2=false;
checked3=false;
checked4=false;
// Next 4 if's check to see which addresses are checked
if (document.email.email1.che
{
address+=document.email.em
checked1=true;
}
if (document.email.email2.che
{
if(checked1==true)
{
address+=",";
}
address+=document.email.em
checked2=true;
}
if (document.email.email3.che
{
if(checked1==true || checked2==true)
{
address+=",";
}
address+=document.email.em
checked3=true;
}
if (document.email.email4.che
{
if(checked1==true || checked2==true || checked3==true)
{
address+=",";
}
address+=document.email.em
checked4=true;
}
// Alert message if no address is checked
if(checked1==false&&checke
alert("\nYou must select an address from the list first.");
else
document.mesgForm.action="
}
</script>
<form name="email">
<p><input type="checkbox" name="email1" value="cathy@aol.com">Cath
<input type="checkbox" name="email2" value="123456@skytel.com">
<input type="checkbox" name="email3" value="john@aol.com">John<
<input type="checkbox" name="email4" value="KK@sfsu.edu">KK</p>
<p> </p>
</form>
<form method="post" action="/cgi-bin/CGI_LIB_P
<p><textarea name="message" rows="5" cols="30"></textarea><br>
<br>
<input type="reset" value="Reset Form"> <input type="submit" value="Send Message"> </p>
</form>
</body>
</html>
Additional Note:
1. What the /cgi-bin/CGI_LIB_PL.pl does is to convert the input from HTML format into whatever readable (If we do not use this perl script, it can't read some special char. example: all spaces become +'s)
Problem: See the document below. When I use the email form to send out email, it just returned a CGI timeout page for me.
Question:
1. Am I using the right way to call the CGI_LIB_PL.pl?
2. Do I have to use an additional perl script to tell the CGI_LIB_PL.pl what to do? If so, how?
Please see the following
==========================
function doMail()
{
// Reset each variable each time button is clicked
address="";
checked1=false;
checked2=false;
checked3=false;
checked4=false;
// Next 4 if's check to see which addresses are checked
if (document.email.email1.che
{
address+=document.email.em
checked1=true;
}
if (document.email.email2.che
{
if(checked1==true)
{
address+=",";
}
address+=document.email.em
checked2=true;
}
if (document.email.email3.che
{
if(checked1==true || checked2==true)
{
address+=",";
}
address+=document.email.em
checked3=true;
}
if (document.email.email4.che
{
if(checked1==true || checked2==true || checked3==true)
{
address+=",";
}
address+=document.email.em
checked4=true;
}
// Alert message if no address is checked
if(checked1==false&&checke
alert("\nYou must select an address from the list first.");
else
document.mesgForm.action="
}
</script>
<form name="email">
<p><input type="checkbox" name="email1" value="cathy@aol.com">Cath
<input type="checkbox" name="email2" value="123456@skytel.com">
<input type="checkbox" name="email3" value="john@aol.com">John<
<input type="checkbox" name="email4" value="KK@sfsu.edu">KK</p>
<p> </p>
</form>
<form method="post" action="/cgi-bin/CGI_LIB_P
<p><textarea name="message" rows="5" cols="30"></textarea><br>
<br>
<input type="reset" value="Reset Form"> <input type="submit" value="Send Message"> </p>
</form>
</body>
</html>
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2
3 Comments
This is the CGI_LIB_PL.pl script that I downloaded.....
==========================
#!/usr/local/bin/perl -- -*- C -*-
# Perl Routines to Manipulate CGI input
# S.E.Brenner@bioc.cam.ac.uk
# $Header: /cys/people/brenner/http/c
#
# Copyright 1994 Steven E. Brenner
# Unpublished work.
# Permission granted to use and modify this library so long as the
# copyright above is maintained, modifications are documented, and
# credit is given for any use of the library.
#
# Thanks are due to many people for reporting bugs and suggestions
# especially Meng Weng Wong, Maki Watanabe, Bo Frese Rasmussen,
# Andrew Dalke, Mark-Jason Dominus and Dave Dittrich.
# For more information, see:
# http://www.bio.cam.ac.uk/web/form.html
# http://www.seas.upenn.edu/~mengwong/forms/
# Minimalist http form and script (http://www.bio.cam.ac.uk/web/minimal.cgi):
#
# require "cgi-lib.pl";
# if (&ReadParse(*input)) {
# print &PrintHeader, &PrintVariables(%input);
# } else {
# print &PrintHeader,'<form><input
#}
# ReadParse
# Reads in GET or POST data, converts it to unescaped text, and puts
# one key=value in each member of the list "@in"
# Also creates key/value pairs in %in, using '\0' to separate multiple
# selections
# Returns TRUE if there was input, FALSE if there was no input
# UNDEF may be used in the future to indicate some failure.
# Now that cgi scripts can be put in the normal file space, it is useful
# to combine both the form and the script in one place. If no parameters
# are given (i.e., ReadParse returns FALSE), then a form could be output.
# If a variable-glob parameter (e.g., *cgi_input) is passed to ReadParse,
# information is stored there, rather than in $in, @in, and %in.
sub ReadParse {
local (*in) = @_ if @_;
local ($i, $key, $val);
# Read in text
if (&MethGet) {
$in = $ENV{'QUERY_STRING'};
} elsif ($ENV{'REQUEST_METHOD'} eq "POST") {
read(STDIN,$in,$ENV{'CONTE
}
@in = split(/&/,$in);
foreach $i (0 .. $#in) {
# Convert plus's to spaces
$in[$i] =~ s/\+/ /g;
# Split into key and value.
($key, $val) = split(/=/,$in[$i],2); # splits on the first =.
# Convert %XX from hex numbers to alphanumeric
$key =~ s/%(..)/pack("c",hex($1))/
$val =~ s/%(..)/pack("c",hex($1))/
# Associate key and value
$in{$key} .= "\0" if (defined($in{$key})); # \0 is the multiple separator
$in{$key} .= $val;
}
return length($in);
}
# PrintHeader
# Returns the magic line which tells WWW that we're an HTML document
sub PrintHeader {
return "Content-type: text/html\n\n";
}
# MethGet
# Return true if this cgi call was using the GET request, false otherwise
sub MethGet {
return ($ENV{'REQUEST_METHOD'} eq "GET");
}
# MyURL
# Returns a URL to the script
sub MyURL {
return 'http://' . $ENV{'SERVER_NAME'} . $ENV{'SCRIPT_NAME'};
}
# CgiError
# Prints out an error message which which containes appropriate headers,
# markup, etcetera.
# Parameters:
# If no parameters, gives a generic error message
# Otherwise, the first parameter will be the title and the rest will
# be given as different paragraphs of the body
sub CgiError {
local (@msg) = @_;
local ($i,$name);
if (!@msg) {
$name = &MyURL;
@msg = ("Error: script $name encountered fatal error");
};
print &PrintHeader;
print "<html><head><title>$msg[0
print "<body><h1>$msg[0]</h1>\n"
foreach $i (1 .. $#msg) {
print "<p>$msg[$i]</p>\n";
}
print "</body></html>\n";
}
# PrintVariables
# Nicely formats variables in an associative array passed as a parameter
# And returns the HTML string.
sub PrintVariables {
local (%in) = @_;
local ($old, $out, $output);
$old = $*; $* =1;
$output .= "<DL COMPACT>";
foreach $key (sort keys(%in)) {
foreach (split("\0", $in{$key})) {
($out = $_) =~ s/\n/<BR>/g;
$output .= "<DT><B>$key</B><DD><I>$ou
}
}
$output .= "</DL>";
$* = $old;
return $output;
}
# PrintVariablesShort
# Nicely formats variables in an associative array passed as a parameter
# Using one line per pair (unless value is multiline)
# And returns the HTML string.
sub PrintVariablesShort {
local (%in) = @_;
local ($old, $out, $output);
$old = $*; $* =1;
foreach $key (sort keys(%in)) {
foreach (split("\0", $in{$key})) {
($out = $_) =~ s/\n/<BR>/g;
$output .= "<B>$key</B> is <I>$out</I><BR>";
}
}
$* = $old;
return $output;
}
1; #return true
==========================
#!/usr/local/bin/perl -- -*- C -*-
# Perl Routines to Manipulate CGI input
# S.E.Brenner@bioc.cam.ac.uk
# $Header: /cys/people/brenner/http/c
#
# Copyright 1994 Steven E. Brenner
# Unpublished work.
# Permission granted to use and modify this library so long as the
# copyright above is maintained, modifications are documented, and
# credit is given for any use of the library.
#
# Thanks are due to many people for reporting bugs and suggestions
# especially Meng Weng Wong, Maki Watanabe, Bo Frese Rasmussen,
# Andrew Dalke, Mark-Jason Dominus and Dave Dittrich.
# For more information, see:
# http://www.bio.cam.ac.uk/web/form.html
# http://www.seas.upenn.edu/~mengwong/forms/
# Minimalist http form and script (http://www.bio.cam.ac.uk/web/minimal.cgi):
#
# require "cgi-lib.pl";
# if (&ReadParse(*input)) {
# print &PrintHeader, &PrintVariables(%input);
# } else {
# print &PrintHeader,'<form><input
#}
# ReadParse
# Reads in GET or POST data, converts it to unescaped text, and puts
# one key=value in each member of the list "@in"
# Also creates key/value pairs in %in, using '\0' to separate multiple
# selections
# Returns TRUE if there was input, FALSE if there was no input
# UNDEF may be used in the future to indicate some failure.
# Now that cgi scripts can be put in the normal file space, it is useful
# to combine both the form and the script in one place. If no parameters
# are given (i.e., ReadParse returns FALSE), then a form could be output.
# If a variable-glob parameter (e.g., *cgi_input) is passed to ReadParse,
# information is stored there, rather than in $in, @in, and %in.
sub ReadParse {
local (*in) = @_ if @_;
local ($i, $key, $val);
# Read in text
if (&MethGet) {
$in = $ENV{'QUERY_STRING'};
} elsif ($ENV{'REQUEST_METHOD'} eq "POST") {
read(STDIN,$in,$ENV{'CONTE
}
@in = split(/&/,$in);
foreach $i (0 .. $#in) {
# Convert plus's to spaces
$in[$i] =~ s/\+/ /g;
# Split into key and value.
($key, $val) = split(/=/,$in[$i],2); # splits on the first =.
# Convert %XX from hex numbers to alphanumeric
$key =~ s/%(..)/pack("c",hex($1))/
$val =~ s/%(..)/pack("c",hex($1))/
# Associate key and value
$in{$key} .= "\0" if (defined($in{$key})); # \0 is the multiple separator
$in{$key} .= $val;
}
return length($in);
}
# PrintHeader
# Returns the magic line which tells WWW that we're an HTML document
sub PrintHeader {
return "Content-type: text/html\n\n";
}
# MethGet
# Return true if this cgi call was using the GET request, false otherwise
sub MethGet {
return ($ENV{'REQUEST_METHOD'} eq "GET");
}
# MyURL
# Returns a URL to the script
sub MyURL {
return 'http://' . $ENV{'SERVER_NAME'} . $ENV{'SCRIPT_NAME'};
}
# CgiError
# Prints out an error message which which containes appropriate headers,
# markup, etcetera.
# Parameters:
# If no parameters, gives a generic error message
# Otherwise, the first parameter will be the title and the rest will
# be given as different paragraphs of the body
sub CgiError {
local (@msg) = @_;
local ($i,$name);
if (!@msg) {
$name = &MyURL;
@msg = ("Error: script $name encountered fatal error");
};
print &PrintHeader;
print "<html><head><title>$msg[0
print "<body><h1>$msg[0]</h1>\n"
foreach $i (1 .. $#msg) {
print "<p>$msg[$i]</p>\n";
}
print "</body></html>\n";
}
# PrintVariables
# Nicely formats variables in an associative array passed as a parameter
# And returns the HTML string.
sub PrintVariables {
local (%in) = @_;
local ($old, $out, $output);
$old = $*; $* =1;
$output .= "<DL COMPACT>";
foreach $key (sort keys(%in)) {
foreach (split("\0", $in{$key})) {
($out = $_) =~ s/\n/<BR>/g;
$output .= "<DT><B>$key</B><DD><I>$ou
}
}
$output .= "</DL>";
$* = $old;
return $output;
}
# PrintVariablesShort
# Nicely formats variables in an associative array passed as a parameter
# Using one line per pair (unless value is multiline)
# And returns the HTML string.
sub PrintVariablesShort {
local (%in) = @_;
local ($old, $out, $output);
$old = $*; $* =1;
foreach $key (sort keys(%in)) {
foreach (split("\0", $in{$key})) {
($out = $_) =~ s/\n/<BR>/g;
$output .= "<B>$key</B> is <I>$out</I><BR>";
}
}
$* = $old;
return $output;
}
1; #return true
It seems you missunderstand a bit the mechanism of CGI. A CGI-program is not executed on the client maschine like java-script, it runs on the web-server when you submit the form with action="/cgi-bin/myscript.
The script "CGI_LIB_PL.pl" contains only some functions that helps you writing cgi-programs in perl. But you need to put them on your webserver into its cgi-bin directory.
You don't need the java-script, you have to write a cgi-program, which could use this CGI_LIB_PL.pl (I think name should be "cgi-lib.pl").
This library offers you some functions that parses the query-string and decodes data entered in your textarea.
The script "CGI_LIB_PL.pl" contains only some functions that helps you writing cgi-programs in perl. But you need to put them on your webserver into its cgi-bin directory.
You don't need the java-script, you have to write a cgi-program, which could use this CGI_LIB_PL.pl (I think name should be "cgi-lib.pl").
This library offers you some functions that parses the query-string and decodes data entered in your textarea.
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