#!/usr/local/bin/perl

use vars qw(%INTERNAL %get %post %fields %header %cookie %BLOCK $DEBUG $output);
use strict;

sub SendHeaders(){
    $INTERNAL{sentheaders} = 1;
    print STDOUT "Content-Type: text/plain\n\n" if $DEBUG & 2;
    print STDOUT map("$_: $header{$_}\n", keys %header), "\n";
};

sub rawprint(@){
    print STDOUT (@_);
}


$ENV{PLP_VERSION} = '2.40';
$DEBUG = 1;

# We put most everything in %INTERNAL, just so the user won't screw it.
# We could also have used packages, but let's keep it simple.

$INTERNAL{file} = $ENV{PATH_TRANSLATED};
unless (-e $INTERNAL{file}){
    $ENV{REDIRECT_STATUS} = '404';
    print STDERR "PLP: Not found: $INTERNAL{file}\n";

    #Change this if you have an error handling script.
    print `/vhost/COMMON/err.cgi` || "Status: 404 Not found\n\nFile not found";
    
    exit;
}

require plp;

($INTERNAL{dir} = $INTERNAL{file}) =~ s{^(.*)/(.*?)$}[$1];
$ENV{FILE_NAME} = $2;
chdir $INTERNAL{dir};

($ENV{PLP_NAME} = $ENV{REQUEST_URI}) =~ s/\?.*$//;


$INTERNAL{qq} = ""; #^P
$INTERNAL{q}  = ""; #^Q

$INTERNAL{code} = ReadFile($INTERNAL{file});

while ($INTERNAL{code} =~ /<\((.*?)\)>/ ){
    (my $file = $1) =~ tr/[<>|//d;
    $INTERNAL{code} =~ s//ReadFile($file)/e;
}

$INTERNAL{code} =~ s(<:)($INTERNAL{q};)g;
$INTERNAL{code} =~ s(:>)(;\nprint q$INTERNAL{q})g;

while ($INTERNAL{code} =~ /(<\[1(.*?)\]>(.*?)<\[2\]>(.*?)<\[3\]>)/s){
    $BLOCK{"$2-1"} = $3;
    $BLOCK{"$2-2"} = $4;
    $INTERNAL{code} =~ s///;  #Redo last match
}
$INTERNAL{code} =~ s(\\\\\r?\n)()g;

# This is bad and subject to removal.
$INTERNAL{code} =~ s(<\[([^>]*?):(.*?)\]>)($BLOCK{"${1}-1"}$2$BLOCK{"${1}-2"})g;
$INTERNAL{code} =~ s(<\[(?!/)(.*?)\]>)($BLOCK{"${1}-1"})g;
$INTERNAL{code} =~ s(<\[/(.*?)\]>)($BLOCK{"${1}-2"})g;

# This too is bad and subject to removal.
$INTERNAL{code} =~ s(<{[ \08\09]*)($INTERNAL{q};print qq$INTERNAL{qq})g;
$INTERNAL{code} =~ s([ \08\09]*}>)($INTERNAL{qq};print q$INTERNAL{q})g;
$INTERNAL{code} = "print q$INTERNAL{q}$INTERNAL{code}$INTERNAL{q};";

$INTERNAL{code} =~ s{print qq$INTERNAL{qq}$INTERNAL{qq};}[]g;
$INTERNAL{code} =~ s{print q$INTERNAL{q}$INTERNAL{q};}[]g;

tie %header, 'PLP::Headers';
tie *PLPOUT, 'PLP::Print';

# This is VERY bad, and will probably be removed. Use <: BEGIN { ... } 
# :> instead
while ($INTERNAL{code} =~ s/<_(.*?)_>//s){
    $INTERNAL{pre} = $1;    
    {
	no strict;
	eval $INTERNAL{pre};
	if ($@ && $DEBUG & 1){
	    print "\nDebug:\n $@";
	}
    }
}

#$INTERNAL{headers}->();
select PLPOUT;
{
    no strict;
    eval $INTERNAL{code};
    SendHeaders() unless $INTERNAL{sentheaders};
    if ($@ && $DEBUG & 1){
	print "<hr><b>Debug</b><br>", Entity($@);
    }
}