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#!/usr/bin/perl
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use strict;
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use Data::Dumper;
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my $dir = shift @ARGV;
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my $out = shift @ARGV;
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my $espfs = '';
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my @structured = read_dir_structure($dir, "");
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for my $file (@structured)
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{
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my $flags = 0;
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my $name = $file;
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my $compression = 0;
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if( $name =~ /\.gz$/ )
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{
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$flags |= 2;
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$name =~ s/\.gz$//;
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}
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my $head = '<!doctype html><html><head><title>esp-link</title><link rel=stylesheet href="/pure.css"><link rel=stylesheet href="/style.css"><meta name=viewport content="width=device-width, initial-scale=1"><script src="/ui.js"></script><script src="/userpage.js"></script></head><body><div id=layout>';
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open IF, "<", "$dir/$file" or die "Can't read file: $!";
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my @fc = <IF>;
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close(IF);
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my $cnt = join("", @fc);
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if( $name =~ /\.html$/ )
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{
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if( ! ( $flags & 2 ) )
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{
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$cnt = "$head$cnt";
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}
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else
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{
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printf("TODO: prepend headers to GZipped HTML content!\n");
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}
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}
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$name .= chr(0);
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$name .= chr(0) while( (length($name) & 3) != 0 );
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my $size = length($cnt);
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$espfs .= "ESfs";
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$espfs .= chr($flags);
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$espfs .= chr($compression);
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$espfs .= chr( length($name) & 255 );
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$espfs .= chr( length($name) / 256 );
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$espfs .= chr( $size & 255 );
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$espfs .= chr( ( $size / 0x100 ) & 255 );
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$espfs .= chr( ( $size / 0x10000 ) & 255 );
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$espfs .= chr( ( $size / 0x1000000 ) & 255 );
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$espfs .= chr( $size & 255 );
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$espfs .= chr( ( $size / 0x100 ) & 255 );
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$espfs .= chr( ( $size / 0x10000 ) & 255 );
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$espfs .= chr( ( $size / 0x1000000 ) & 255 );
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$espfs .= $name;
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$cnt .= chr(0) while( (length($cnt) & 3) != 0 );
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$espfs .= $cnt;
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}
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$espfs .= "ESfs";
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$espfs .= chr(1);
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for(my $i=0; $i < 11; $i++)
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{
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$espfs .= chr(0);
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}
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open FH, ">", $out or die "Can't open file for write, $!";
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print FH $espfs;
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close(FH);
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exit(0);
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sub read_dir_structure
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{
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my ($dir, $base) = @_;
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my @files;
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opendir my $dh, $dir or die "Could not open '$dir' for reading: $!\n";
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while (my $file = readdir $dh) {
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if ($file eq '.' or $file eq '..') {
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next;
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}
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my $path = "$dir/$file";
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if( -d "$path" )
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{
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my @sd = read_dir_structure($path, "$base/$file");
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push @files, @sd ;
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}
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else
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{
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push @files, "$base/$file";
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}
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}
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close( $dh );
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$_ =~ s/^\/// for(@files);
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return @files;
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}
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