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http-colors-pdftotext.pl
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http-colors-pdftotext.pl
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#!/usr/bin/env perl
use strict;
use warnings;
use HTTP::Daemon;
use HTTP::Status;
use MIME::Base64;
use File::Temp qw/tempfile/;
use constant HTTP_HOST => '127.0.0.1';
use constant HTTP_PORT => 8888;
use constant DEFAULT_SPEED => 18;
use constant APP_VER => '5-p2t';
my $html_header = <<HTML;
<!DOCTYPE html>
<html lang="bg">
<head>
<meta charset="utf-8">
<title>Обработка на цветове</title>
<meta name="description" content="The HTML5 Herald">
<meta name="author" content="Vladimir Borisov">
</head>
<body style="background-color:ButtonFace;">
HTML
my $html_frame = <<HTML;
<iframe src="about:blank" id="ifu" style="width:0;height:0;position:absolute;top:-1000px;"></iframe>
<script type="text/javascript">
(function(d) {
var ifu = document.getElementById('ifu');
ifu = (ifu.contentWindow) ? ifu.contentWindow : (ifu.contentDocument.document) ? ifu.contentDocument.document : ifu.contentDocument;
ifu.document.open();
ifu.document.write('<form id="upload-form" action="" method="post" enctype="multipart/form-data" target="_top"><input type="file" name="colors" id="colors"></form>');
ifu.document.close();
var colors = ifu.document.getElementById('colors');
colors.onchange = function() {
ifu.document.getElementById('upload-form').submit();
};
ifu.document.getElementById('upload-form').onsubmit = function() {
if(! colors.value) {
colors.click();
return false;
}
};
document.getElementById('feed').onclick = function(){
colors.click();
};
})(document);
</script>
HTML
my $html_footer = <<'HTML';
</body>
</html>
HTML
my %color_map = ('Black', 1, 'Cyan', 2, 'Magenta', 3, 'Yellow', 4);
#my %color_sp = ('Black', 0x0e, 'Cyan', 0x14, 'Magenta', 0x10, 'Yellow', 0x16);
my %color_sp = ('Black', 0x07, 'Cyan', 0x0a, 'Magenta', 0x8, 'Yellow', 0x0b);
my $d = HTTP::Daemon->new(LocalAddr => HTTP_HOST, LocalPort => HTTP_PORT, Reuse => 1);
die "can't setup server" unless $d;
print "Server started at ".$d->url."\n";
while (my $c = $d->accept) {
while (my $r = $c->get_request) {
# Upload form
unless($r->url->query or $r->method eq 'POST') {
my $h = <<HTML;
$html_header
<div style="text-align: center;">
<input type="submit" value="Качи PDF" id="feed" style="font-size: 2em;margin-top:1em;"/>
</div>
$html_frame
$html_footer
HTML
my $rs = new HTTP::Response;
$rs->header('Content-Type' => 'text/html');
$rs->content($h);
$c->send_response($rs);
$c->close;
goto LAST;
# Generateing the .ry4 file
} elsif($r->url->query) {
my $tra_la_la = '';
my %query = split /[=&]/, $r->url->query;
my %colors = (); # data for colors
my @cids = ();
my $colidx = ''; # index of colors
unless ($query{'f'}) {
$c->send_redirect("/");
goto LAST;
}
foreach (keys %query) {
next if /(-speed$|-index$|^f$)/;
my $key = lc $_;
unless ($query{$key.'-index'} and $query{$key.'-speed'}) {
$c->send_redirect("/");
goto LAST;
}
$colidx .= pack 'C', $color_map{$_} ? $color_map{$_} : $query{$key.'-index'};
$colors{$_} = $query{$_};
# Unescape the URL
$colors{$_} =~ s/\%([A-Fa-f0-9]{2})/pack('C', hex($1))/seg;
# Decode
$colors{$_} = decode_base64 $colors{$_};
# Test if valid
if (length $colors{$_} != 46) {
$c->send_redirect("/");
goto LAST;
}
# Add speed
$colors{$_} = pack 'a194ss', $colors{$_}, 0x0a, $query{$key.'-speed'} * 2;
push @cids, $_;
}
unless (@cids and ! ($colidx =~ /(.).*\1/)) {
$c->send_redirect("/");
goto LAST;
}
my $template = pack 'a16a4784a6a2', '000023 RAMP BAND', $colidx, 'V1.01','UU';
my $offset = 0x30;
my $step = 0xc6;
foreach (@cids) {
substr($template, $offset, $step) = $colors{$_};
$offset+=$step;
}
my $rs = new HTTP::Response;
$rs->header("Cache-Control" => "public");
$rs->header("Content-Description" => "File Transfer");
$rs->header("Content-Disposition" => "attachment; filename=$query{'f'}.ry4");
$rs->header("Content-Type" => "application/octet-stream");
$rs->header("Content-Transfer-Encoding" => "binary");
$rs->content($template);
$c->send_response($rs);
$c->close;
goto LAST;
}
# Parsing the PDF
my $input = $r->content;
my @secs = split /\r\n\r\n/, $input;
my %headers = (shift(@secs) =~ m/\n([^:]+): (.*)(?:\r|$)/g);
# Headers validation
unless ($headers{'Content-Type'} eq 'application/pdf' and $headers{'Content-Disposition'}) {
$c->send_redirect("/");
goto LAST;
}
# File validation
my $temp_file;
(undef, $temp_file) = tempfile('tmppdfXXXXXX', OPEN=>0, SUFFIX=>'.pdf');
open my $OUF, ">", $temp_file;
binmode $OUF;
print {$OUF} shift(@secs);
close $OUF;
my $pid = open(my $OUS, "pdftotext -raw $temp_file - |");
my $doc = do {local $/; <$OUS> };
close $OUS;
waitpid($pid, 0);
unlink($temp_file);
(my $filename) = ($headers{'Content-Disposition'} =~ m/filename="(.+).pdf"/i);
my $html_body = '';
my $color_index = 5;
$doc =~ s/\n+/\n/g;
my @pages = split /\xc/, $doc;
foreach my $p (1 .. $#pages) {
my $str = $pages[$p];
my @row = split /\n/, $str;
(my $color) = ($row[0] =~ /- (.*?) Layer/);
my @cols;
my $values = '';
my $max = 0;
@row = split /\s+/, $row[$#row];
for(my $n = 1; $n < 24;$n++) {
my $val = $row[$n]*4;
push @cols, $val;
$max = $val unless $max > $val;
$values .= pack 's', $val;
}
# Na nula ne se deli, taka che ni trqbva neshto blizko
$max = .0000000000000000000000000001 unless ($max);
$values = encode_base64 $values;
chop $values;
my $checked = defined $color_map{$color} ? ' checked=checked' : '';
$html_body .= <<HTML;
<tr>
<td><input type="checkbox"$checked name="$color" id="$color" value="$values"/><label unselectable="on" for="$color">$color</label></td>
<td><table style="display:inline-table;background-color:lightgray;height:1.3em;"><tr>
HTML
$html_body .= sprintf <<'HTML', $_/4, $_, defined $color_map{$color} ? $color : 'darkgray', ($_ / $max) foreach (@cols);
<td style="vertical-align:bottom;height=1em;" title="%d, (hex*4 0x%04x)">
<div style="cursor:default;background-color:%s;height:%fem"> </div>
</td>
HTML
$html_body .= sprintf <<'HTML', lc $color, $color_sp{$color} ? $color_sp{$color} : DEFAULT_SPEED;
</tr></table>
</td>
<td>
<label unselectable="on" for="%s-speed">Скорост</label>
<input type="number" size="6" id="%1$s-speed" name="%1$s-speed" value="%d"/>
</td>
HTML
$html_body .= sprintf <<'HTML', lc $color, $color_map{$color} ? ' readonly="readonly"' : '', $color_map{$color} ? $color_map{$color} : $color_index++;
<td>
<label unselectable="on" for="%s-index">Индекс</label>
<input type="number" size="6" id="%1$s-index" name="%1$s-index"%s value="%d"/>
</td>
</tr>
HTML
}
$c->send_redirect("/") and goto LAST unless $html_body;
my $h = sprintf <<'HTML', $html_header, $filename, $html_body, APP_VER, $html_frame, $html_footer;
%s
<style>
label {
-webkit-touch-callout: none;
-webkit-user-select: none;
-khtml-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
}
[readonly="readonly"], [readonly] {
color: gray;
}
</style>
<form method="get" action="" id="upload-form">
<input type="hidden" name="f" value="%s"/>
<table style="margin: 2em auto;background-color: ButtonHighlight; box-shadow: 0 0 1em;">
<tr>
<td colspan="4">
<h1 style="text-align: center;">%2$s.pdf</h1><hr/>
</td>
</tr>
%s
<tr>
<td colspan="4">
<table style="width: 100%%;"><tr>
<td width="50%%">
<button type="button" style="font-size:1.2em;width: 100%%;" id="feed">Качи PDF</button>
</td><td width="50%%">
<button type="submit" style="font-size:1.2em; width: 100%%;">Изтегли</button>
</td>
</tr></table>
</td>
</tr>
<tr>
<td colspan="4" style="text-align: right;"><small>вер. %s</small></td>
</tr>
</table>
</form>
%s
<script type="text/javascript">
(function(d, foreach) {
if (! d.querySelectorAll || ! foreach) return;
var maxchecked = 6
, totalchecked = 0;
foreach.call(d.querySelectorAll('input[type=checkbox]'), function(el) {
totalchecked += el.checked;
el.onclick = function() {
totalchecked += el.checked ? 1 : -1;
foreach.call(d.querySelectorAll('input[type=checkbox]:not(:checked)'), function(en) {
en.disabled = totalchecked >= maxchecked && ! en.checked;
});
}
});
if(typeof(Storage)==="undefined") return;
foreach.call(d.querySelectorAll('input[type=number][id$=speed]'), function(el) {
if(typeof localStorage[el.id] !== 'undefined') el.value = localStorage[el.id];
});
d.getElementById('upload-form').onsubmit = function() {
foreach.call(d.querySelectorAll('input[type=number][id$=speed]'), function(el) {
localStorage[el.id] = el.value;
});
}
})(document, Array.prototype.forEach);
</script>
%s
HTML
my $rs = new HTTP::Response;
$rs->header('Content-Type' => 'text/html');
$rs->content($h);
$c->send_response($rs);
goto LAST;
}
LAST:
$c->close;
undef($c);
}