#ssi.pm
#Last Change: 2009-01-19
#Copyright (c) 2009 Marc-Seabstian "Maluku" Lucksch
#Version 0.8
####################
#This file is part of the Dotiac::DTL project.
#http://search.cpan.org/perldoc?Dotiac::DTL
#
#ssi.pm is published under the terms of the MIT license, which basically
#means "Do with it whatever you want". For more information, see the
#license.txt file that should be enclosed with libsofu distributions. A copy of
#the license is (at the time of writing) also available at
#http://www.opensource.org/licenses/mit-license.php .
###############################################################################
package Dotiac::DTL::Tag::ssi;
use base qw/Dotiac::DTL::Tag/;
use strict;
use warnings;
our $VERSION = 0.8;
sub new {
my $class=shift;
my $self={p=>shift()};
my $name=shift;
die "This ssi needs a filename or variable" unless $name;
die "\$Dotiac::DTL::ALLOWED_INCLUDE_ROOTS is not set, can't use this tag" unless $Dotiac::DTL::ALLOWED_INCLUDE_ROOTS;
#my $parsed=$name=~s/\s+parsed$//;
my @name=Dotiac::DTL::get_variables($name);
$self->{parsed}=1 if $name[-1] and $name[-1] eq "parsed";
my $f=substr $name[0],0,1;
my $e=substr $name[0],-1,1;
if ($f eq "`" and $e eq "`") {
$self->{load}=Dotiac::DTL::devar($name[0],{},0);
if ($self->{parsed}) {
my $tem = Dotiac::DTL->safenew($self->{load});
$self->{content}=$tem->{first};
}
else {
open my $fh,"<",substr($name,1,-1) or die "Can't open ssi include $name";
$self->{content}=Dotiac::DTL::Tag->new(do {local $/;<$fh>});
close $fh;
}
}
else {
$self->{var}=$name[0];
}
bless $self,$class;
return $self;
}
sub print {
my $self=shift;
print $self->{p};
if ($self->{content}) {
$self->{content}->print(@_);
}
else {
my $tem = Dotiac::DTL::devar_repr($self->{var},@_);
if ($self->{parsed}) {
my $tem = Dotiac::DTL->safenew($tem);
$tem->{first}->print(@_);
}
else {
open my $fh,"<",$tem or die "Can't open ssi include from var :\"$tem\"";
print do {local $/;<$fh>};
close $fh;
}
}
$self->{n}->print(@_) if $self->{n};
}
sub string {
my $self=shift;
if ($self->{content}) {
return $self->{p}.$self->{content}->string(@_).($self->{n}?$self->{n}->string(@_):"");
}
my $tem = Dotiac::DTL::devar_repr($self->{var},@_);
if ($self->{parsed}) {
$tem = Dotiac::DTL->safenew($tem);
return $self->{p}.$tem->{first}->string(@_).($self->{n}?$self->{n}->string(@_):"");
}
else {
open my $fh,"<",$tem or die "Can't open ssi include from var :\"$tem\"";
return $self->{p}.do {local $/;<$fh>}.($self->{n}?$self->{n}->string(@_):"");
close $fh;
}
}
sub perl {
my $self=shift;
my $fh=shift;
my $id=shift;
$self->SUPER::perl($fh,$id,@_);
if ($self->{content}) {
print $fh "my ";
print $fh (Data::Dumper->Dump([$self->{load}],["\$name$id"]));
if ($self->{parsed}) {
print $fh "my \$template$id=Dotiac::DTL->safenew(\$name$id);\n";
}
else {
print $fh "open my \$fh$id,'<',\$name$id or die \"Can't SSI \$name$id: \$!\";\n";
print $fh "my \$template$id=do {local \$/;<\$fh$id>};\n";
print $fh "close \$fh$id;\n";
}
}
else {
print $fh "my ";
print $fh (Data::Dumper->Dump([$self->{var}],["\$name$id"]));
}
return $self->{n}->perl($fh,$id+1,@_);
}
sub perlprint {
my $self=shift;
my $fh=shift;
my $id=shift;
my $level=shift;
$self->SUPER::perlprint($fh,$id,$level,@_);
my $in="\t" x $level;
if ($self->{content}) {
print $fh $in,"die \"Cyclic include detected \" if \$Dotiac::DTL::included{\$template$id}++;\n" if $self->{parsed};
print $fh "$in\$template$id"."->{first}->print(\$vars,\$escape,\@_);\n" if $self->{parsed};
print $fh $in,"print \$template$id;\n" unless $self->{parsed};
print $fh $in,"\$Dotiac::DTL::included{\$template$id}=0;\n" if $self->{parsed};
}
else {
if ($self->{parsed}) {
print $fh $in,"my \$template$id = Dotiac::DTL::devar_repr(\$name$id,\$vars,\$escape,\@_);\n";
print $fh $in,"my \$s$id=\$template$id;\n";
print $fh $in,"if (not ref \$template$id) {\n";
print $fh $in,"\t\$template$id = Dotiac::DTL->new(\$template$id);\n";
print $fh $in,"} else {\n";
print $fh $in,"\tdie \"Can't ssi with \\\"\$template$id\\\"\";\n";
print $fh $in,"}\n";
print $fh $in,"die \"Cyclic include detected \" if \$Dotiac::DTL::included{\$s$id}++;\n";
print $fh $in,"\$template$id"."->{first}->print(\$vars,\$escape,\@_);\n";
print $fh $in,"\$Dotiac::DTL::included{\$s$id}=0;\n";
}
else {
print $fh $in,"open my \$fh$id,'<',Dotiac::DTL::devar_repr(\$name$id,\$vars,\$escape,\@_) or die \"Can't SSI \$name$id: \$!\";\n";
print $fh $in,"print do {local \$/;<\$fh$id>};\n";
print $fh $in,"close \$fh$id;\n";
}
}
return $self->{n}->perlprint($fh,$id+1,$level,@_);
}
sub perlstring {
my $self=shift;
my $fh=shift;
my $id=shift;
my $level=shift;
$self->SUPER::perlstring($fh,$id,$level,@_);
my $in="\t" x $level;
if ($self->{content}) {
print $fh $in,"die \"Cyclic include detected \" if \$Dotiac::DTL::included{\$template$id}++;\n" if $self->{parsed};
print $fh "$in\$r.=\$template$id"."->{first}->string(\$vars,\$escape,\@_);\n" if $self->{parsed};
print $fh "$in\$r.=\$template$id;\n" unless $self->{parsed};
print $fh $in,"\$Dotiac::DTL::included{\$template$id}=0;\n" if $self->{parsed};
}
else {
if ($self->{parsed}) {
print $fh $in,"my \$template$id = Dotiac::DTL::devar_repr(\$name$id,\$vars,\$escape,\@_);\n";
print $fh $in,"my \$s$id=\$template$id;\n";
print $fh $in,"if (not ref \$template$id) {\n";
print $fh $in,"\t\$template$id = Dotiac::DTL->safenew(\$template$id);\n";
print $fh $in,"} else {\n";
print $fh $in,"\tdie \"Can't ssi with \\\"\$template$id\\\"\";\n";
print $fh $in,"}\n";
print $fh $in,"die \"Cyclic include detected \" if \$Dotiac::DTL::included{\$s$id}++;\n";
print $fh $in,"\$r.=\$template$id"."->{first}->string(\$vars,\$escape,\@_);\n";
print $fh $in,"\$Dotiac::DTL::included{\$s$id}=0;\n";
}
else {
print $fh $in,"open my \$fh$id,'<',Dotiac::DTL::devar_repr(\$name$id,\$vars,\$escape,\@_) or die \"Can't SSI \$name$id: \$!\";\n";
print $fh $in,"\$r.=do {local \$/;<\$fh$id>};\n";
print $fh $in,"close \$fh$id;\n";
}
}
return $self->{n}->perlstring($fh,$id+1,$level,@_);
}
sub perlcount {
my $self=shift;
my $id=shift;
return $self->{n}->perlcount($id+1);
}
sub perleval {
my $self=shift;
my $fh=shift;
my $id=shift;
my $level=shift;
my $in="\t" x $level;
if ($self->{parsed}) {
if ($self->{content}) {
print $fh $in,"die \"Cyclic include detected \" if \$Dotiac::DTL::included{\$template$id}++;\n";
print $fh "$in\$template$id"."->{first}->eval(\$vars,\$escape,\@_);\n";
print $fh $in,"\$Dotiac::DTL::included{\$template$id}=0;\n";
}
else {
print $fh $in,"my \$template$id = Dotiac::DTL::devar_repr(\$name$id,\$vars,\$escape,\@_);\n";
print $fh $in,"my \$s$id=\$template$id;\n";
print $fh $in,"if (not ref \$template$id) {\n";
print $fh $in,"\t\$template$id = Dotiac::DTL->safenew(\$template$id);\n";
print $fh $in,"} else {\n";
print $fh $in,"\tdie \"Can't ssi with \\\"\$template$id\\\"\";\n";
print $fh $in,"}\n";
print $fh $in,"die \"Cyclic include detected \" if \$Dotiac::DTL::included{\$s$id}++;\n";
print $fh $in,"\$template$id"."->{first}->eval(\$vars,\$escape,\@_);\n";
print $fh $in,"\$Dotiac::DTL::included{\$s$id}=0;\n";
}
}
return $self->{n}->perleval($fh,$id+1,$level,@_);
}
sub perlinit {
my $self=shift;
my $fh=shift;
my $id=shift;
return $self->{n}->perlinit($fh,$id+1,@_);
}
sub next {
my $self=shift;
$self->{n}=shift;
}
sub eval {
my $self=shift;
if ($self->{parsed}) {
if ($self->{content}) {
$self->{content}->eval(@_) ;
}
else {
my $tem = Dotiac::DTL::devar($self->{var},@_);
my $s=$tem;
if (not ref $tem) {
$tem = Dotiac::DTL->safenew($tem);
}
else {
die "Can't ssi with \"$tem\"";
}
die "Cyclic include detected " if $Dotiac::DTL::included{$s}++;
$tem->{first}->eval(@_);
$Dotiac::DTL::included{$s}=0;
}
}
$self->{n}->eval(@_);
}
1;
__END__
=head1 NAME
Dotiac::DTL::Tag::ssi - The {% ssi FILE [parsed] %} tag
=head1 SYNOPSIS
Template file:
Some text {% ssi "/home/foo/web/index.html" %}
Some other text {% ssi "/home/foo/web/djangoindex.html" parsed %}
=head1 DESCRIPTION
Similar to the {% include %} (L<Dotiac::DTL::Tag::include>) tag, but includes FILEs to be included from anywhere in the filesystem. So this tag will only work if $Dotiac::DTL::ALLOWED_INCLUDE_ROOTS is set to true (See L<Dotiac::DTL::Core>).
If there is a "parsed" at the end of the tag the file is treated as a template. (like {% include %}) If it isn't there, just the text is included, no matter what is in there.
=head1 BUGS AND DIFFERENCES TO DJANGO
The ssi-tag can't work with template objects, there is no need, use the include-tag for that.
If you find any, please let me know.
=head1 SEE ALSO
L<http://www.djangoproject.com>, L<Dotiac::DTL>
=head1 LEGAL
Dotiac::DTL was built according to http://docs.djangoproject.com/en/dev/ref/templates/builtins/.
=head1 AUTHOR
Marc-Sebastian Lucksch
perl@marc-s.de
=cut