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# $Source: /Users/clajac/cvsroot//Scripting/Scripting/Loader.pm,v $ |
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# $Author: clajac $ |
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# $Date: 2003/07/21 07:33:21 $ |
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# $Revision: 1.5 $ |
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package Scripting::Loader; |
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use Carp qw(croak carp); |
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use IO::Dir; |
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use IO::File; |
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use File::Spec; |
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use Digest::SHA1 qw(sha1); |
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use File::Find::Rule qw(find); |
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use Scripting::Event qw(:constants); |
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use strict; |
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my %Engine; |
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my %Engine_Loaded; |
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my @Allow; |
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# Find available engines |
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BEGIN { |
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my ($path) = __FILE__ =~ /^(.*)Loader\.pm$/; |
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%Engine = map { |
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(/(\w+)\.pm/)[0] => $_ |
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} find(file => name => "*.pm", in => File::Spec->catfile($path, "Engine")); |
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} |
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sub allow { |
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my ($pkg, $allow) = @_; |
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die "Argument must be string or ARRAY reference\n" if(ref $allow && ref $allow ne 'ARRAY'); |
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unless(ref $allow) { |
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my @allow = split/\s+/,$allow; |
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$allow = \@allow; |
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} |
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for (@$allow) { |
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die "Type '$_' not supported\n" unless(exists $Engine{$_}); |
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} |
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@Allow = @$allow; |
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} |
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sub load { |
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my ($pkg, $paths) = @_; |
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die "Argument must be a string or ARRAY reference\n" if(ref $paths && ref $paths ne 'ARRAY'); |
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$paths = [$paths] unless(ref $paths); |
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my @files = find(file => name => [map { "*.$_" } @Allow], in => $paths); |
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foreach (@files) { |
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Scripting::Loader->load_file($_); |
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} |
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} |
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sub load_file { |
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my ($pkg, $path) = @_; |
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$path = File::Spec->rel2abs($path); |
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my @parts = File::Spec->splitdir($path); |
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my $file = pop @parts; |
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my $ns = pop @parts; |
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$ns = "_Global" unless(Scripting::Expose->has_namespace($ns)); |
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my ($event, $engine) = $file =~ /^(.*)\.(\w+)$/; |
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_load_engine($engine); |
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my $file = IO::File->new($path, "r") || die $!; |
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my $source = join "", $file->getlines; |
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$file->close(); |
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my $digest = sha1($source); |
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warn "Script '$path' doesn't match signed signature'\n" unless(Scripting::Security->match($path, $digest)); |
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my $cb = "Scripting::Engine::$engine"->load($path, $ns, $source); |
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if(Scripting::Event->has_event($ns, $event)) { |
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Scripting::Event->remove_event($ns, $event); |
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} |
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Scripting::Event->add_event($ns, $event, $cb); |
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} |
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sub _load_engine { |
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my ($engine) = @_; |
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if(exists $Engine{$engine}) { |
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unless(exists $Engine_Loaded{$engine}) { |
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require $Engine{$engine}; |
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$Engine_Loaded{$engine} = 1; |
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} |
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} |
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} |
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100
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1; |