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package FS::CGI;
use strict;
use vars qw(@EXPORT_OK @ISA);
use Exporter;
use CGI;
use URI::URL;
#use CGI::Carp qw(fatalsToBrowser);
use FS::UID qw( cgi );
@ISA = qw(Exporter);
@EXPORT_OK = qw( header menubar idiot eidiot popurl rooturl table itable ntable
myexit http_header);
=head1 NAME
FS::CGI - Subroutines for the web interface
=head1 SYNOPSIS
use FS::CGI qw(header menubar idiot eidiot popurl);
print header( 'Title', '' );
print header( 'Title', menubar('item', 'URL', ... ) );
idiot "error message";
eidiot "error message";
$url = popurl; #returns current url
$url = popurl(3); #three levels up
=head1 DESCRIPTION
Provides a few common subroutines for the web interface.
=head1 SUBROUTINES
=over 4
=item header TITLE, MENUBAR
Returns an HTML header.
=cut
sub header {
use Carp;
carp 'FS::CGI::header deprecated; include /elements/header.html instead';
my($title,$menubar,$etc)=@_; #$etc is for things like onLoad= etc.
$etc = '' unless defined $etc;
my $x = <<END;
<HTML>
<HEAD>
<TITLE>
$title
</TITLE>
<META HTTP-Equiv="Cache-Control" Content="no-cache">
<META HTTP-Equiv="Pragma" Content="no-cache">
<META HTTP-Equiv="Expires" Content="0">
</HEAD>
<BODY BGCOLOR="#e8e8e8"$etc>
<FONT SIZE=6>
<CENTER>$title</CENTER>
</FONT>
<BR><!--<BR>-->
END
$x .= $menubar. "<BR><BR>" if $menubar;
$x;
}
=item http_header
Sets an http header.
=cut
sub http_header {
my ( $header, $value ) = @_;
if ( defined $HTML::Mason::Commands::r ) { #Mason + apache
if ( $header =~ /^Content-Type$/ ) {
$HTML::Mason::Commands::r->content_type($value);
} else {
$HTML::Mason::Commands::r->header_out( $header => $value );
}
} elsif ( defined $HTML::Mason::Commands::m ) {
$HTML::Mason::Commands::m->notes(lc("header-$header"), $value);
} else {
warn "http_header($header, $value) called with no way to set headers\n";
}
}
=item menubar ITEM, URL, ...
Returns an HTML menubar.
=cut
sub menubar { #$menubar=menubar('Main Menu', '../', 'Item', 'url', ... );
use Carp;
carp 'FS::CGI::menubar deprecated; include /elements/menubar.html instead';
my($item,$url,@html);
while (@_) {
($item,$url)=splice(@_,0,2);
next if $item =~ /^\s*Main\s+Menu\s*$/i;
push @html, qq!<A HREF="$url">$item</A>!;
}
join(' | ',@html);
}
=item idiot ERROR
This is depriciated. Don't use it.
Sends an HTML error message.
=cut
sub idiot {
#warn "idiot depriciated";
my($error)=@_;
# my $cgi = &FS::UID::cgi();
# if ( $cgi->isa('CGI::Base') ) {
# no strict 'subs';
# &CGI::Base::SendHeaders;
# } else {
# print $cgi->header( @FS::CGI::header );
# }
print <<END;
<HTML>
<HEAD>
<TITLE>Error processing your request</TITLE>
<META HTTP-Equiv="Cache-Control" Content="no-cache">
<META HTTP-Equiv="Pragma" Content="no-cache">
<META HTTP-Equiv="Expires" Content="0">
</HEAD>
<BODY>
<CENTER>
<H4>Error processing your request</H4>
</CENTER>
Your request could not be processed because of the following error:
<P><B>$error</B>
</BODY>
</HTML>
END
}
=item eidiot ERROR
This is depriciated. Don't use it.
Sends an HTML error message, then exits.
=cut
sub eidiot {
warn "eidiot depriciated";
$HTML::Mason::Commands::r->send_http_header
if defined $HTML::Mason::Commands::r;
idiot(@_);
&myexit();
}
=item myexit
You probably shouldn't use this; but if you must:
If running under mod_perl, calles Apache::exit, otherwise, calls exit.
=cut
sub myexit {
if (exists $ENV{MOD_PERL}) {
if ( defined $HTML::Mason::Commands::m ) { #Mason
#$HTML::Mason::Commands::m->flush_buffer();
$HTML::Mason::Commands::m->abort();
die "shouldn't fall through to here (mason \$m->abort didn't)";
} else {
#??? well, it is $ENV{MOD_PERL}
warn "running under unknown mod_perl environment; trying Apache::exit()";
require Apache;
Apache::exit();
}
} else {
exit;
}
}
=item popurl LEVEL [URL]
Returns current (or, optionally, passed) URL with LEVEL levels of path removed
from the end (default 0).
=cut
sub popurl {
my $up = shift;
my $url_string;
if ( scalar(@_) ) {
$url_string = shift;
} else {
my $cgi = &FS::UID::cgi;
$url_string = $cgi->isa('Apache') ? $cgi->uri : $cgi->url;
}
$url_string =~ s/\?.*//;
my $url = new URI::URL ( $url_string );
my(@path)=$url->path_components;
splice @path, 0-$up;
$url->path_components(@path);
my $x = $url->as_string;
$x .= '/' unless $x =~ /\/$/;
$x;
}
=item rooturl
=cut
sub rooturl {
my $url_string;
if ( scalar(@_) ) {
$url_string = shift;
} else {
# better to start with the client-provided URL
my $cgi = cgi;
$url_string = $cgi->isa('Apache') ? $cgi->uri : $cgi->url;
}
$url_string =~ s/\?.*//;
#even though this is kludgy
$url_string =~ s{ / index\.html /? $ }
{/}x;
$url_string =~
s{
/
(browse|config|docs|edit|graph|misc|search|view|loginout|pref|rt|torrus)
(/process)?
([\w\-\.\/]*)
$
}
{}x;
$url_string .= '/' unless $url_string =~ /\/$/;
$url_string;
}
=item table
Returns HTML tag for beginning a table.
=cut
sub table {
use Carp;
carp 'FS::CGI::table deprecated; include /elements/table.html instead';
my $col = shift;
if ( $col ) {
qq!<TABLE BGCOLOR="$col" BORDER=1 WIDTH="100%" CELLSPACING=0 CELLPADDING=2 BORDERCOLOR="#999999">!;
} else {
'<TABLE BORDER=1 CELLSPACING=0 CELLPADDING=2 BORDERCOLOR="#999999">';
}
}
=item itable
Returns HTML tag for beginning an (invisible) table.
=cut
sub itable {
my $col = shift;
my $cellspacing = shift || 0;
my $width = ( scalar(@_) && shift ) ? '' : 'WIDTH="100%"'; #bah
if ( $col ) {
qq!<TABLE BGCOLOR="$col" BORDER=0 CELLSPACING=$cellspacing $width>!;
} else {
qq!<TABLE BORDER=0 CELLSPACING=$cellspacing $width>!;
}
}
=item ntable
This is getting silly.
=cut
sub ntable {
my $col = shift;
my $cellspacing = shift || 0;
if ( $col ) {
qq!<TABLE BGCOLOR="$col" BORDER=0 CELLSPACING=$cellspacing>!;
} else {
'<TABLE BORDER CELLSPACING=0 CELLPADDING=2 BORDERCOLOR="#999999">';
}
}
=back
=head1 BUGS
Not OO.
Not complete.
=head1 SEE ALSO
L<CGI>, L<CGI::Base>
=cut
1;
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