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Comparing Coro/myhttpd/access.pl (file contents):
Revision 1.2 by root, Sat Aug 11 03:56:11 2001 UTC vs.
Revision 1.26 by root, Tue Dec 4 15:57:59 2001 UTC

1package transferqueue;
1 2
3my @reserve = (
4 [ 1_200_000, 1],
5 [ 3_000_000, 1],
6 [ 75_000_000, 1],
7);
8
9sub new {
10 my $class = shift;
11 my $self = bless {
12 slots => $_[0],
13 lastspb => 0,
14 avgspb => 0,
15 }, $class;
16 $self->{reschedule} = Event->timer(
17 after => 10,
18 interval => 3,
19 cb => sub { $self->wake_next },
20 );
21 $self;
22}
23
24sub start_transfer {
25 my $self = shift;
26 my $size = $_[0];
27
28 my $transfer = bless {
29 queue => $self,
30 time => $::NOW,
31 size => $size,
32 coro => $Coro::current,
33 started => 0,
34 }, transfer::;
35
36 push @{$self->{wait}}, $transfer;
37
38 $self->wake_next;
39
40 $transfer;
41}
42
43sub sort {
44 my @queue = grep $_, @{$_[0]{wait}};
45
46 $_->{spb} = ($::NOW-$_->{time}) / ($_->{size} || 1) for @queue;
47
48 $_[0]{wait} = [sort { $b->{spb} <=> $a->{spb} } @queue];
49
50 Scalar::Util::weaken $_ for @{$_[0]{wait}};
51}
52
53sub wake_next {
54 my $self = shift;
55
56 $self->sort;
57
58 while (@{$self->{wait}}) {
59 my $size = $self->{wait}[0]{size};
60 my $min = 0;
61 for (@reserve) {
62 last if $size <= $_->[0];
63 $min += $_->[1];
64 }
65 last unless $self->{slots} > $min;
66 my $transfer = shift @{$self->{wait}};
67 $self->{lastspb} = $transfer->{spb};
68 $self->{avgspb} ||= $transfer->{spb};
69 $self->{avgspb} = $self->{avgspb} * 0.95 + $transfer->{spb} * 0.05;
70 $self->{started}++;
71 $transfer->wake;
72 last;
73 }
74}
75
76sub waiters {
77 $_[0]->sort;
78 @{$_[0]{wait}};
79}
80
81sub DESTROY {
82 my $self = shift;
83
84 $self->{reschedule}->cancel;
85}
86
87package transfer;
88
89use Coro::Timer ();
90
91sub wake {
92 my $self = shift;
93
94 $self->{alloc} = 1;
95 $self->{queue}{slots}--;
96 $self->{wake} and $self->{wake}->ready;
97}
98
99sub try {
100 my $self = shift;
101
102 $self->{alloc} || do {
103 my $timeout = Coro::Timer::timeout $_[0];
104 local $self->{wake} = $self->{coro};
105
106 Coro::schedule;
107
108 $self->{alloc};
109 }
110}
111
112sub DESTROY {
113 my $self = shift;
114
115 if ($self->{alloc}) {
116 $self->{queue}{slots}++;
117 $self->{queue}->wake_next;
118 }
119}
120
121package conn;
122
2our @blocklist; 123our %blockuri;
124our $blockref;
3 125
4sub read_blocklist { 126sub read_blockuri {
5 local *B; 127 local *B;
6 my %group; 128 my %group;
7 @blocklist = (); 129 %blockuri = ();
8 if (open B, "<blocklist") { 130 if (open B, "<blockuri") {
9 while (<B>) { 131 while (<B>) {
10 chomp; 132 chomp;
11 if (/^group\s+(\S+)\s+(.*)/i) { 133 if (/^group\s+(\S+)\s+(.*)/i) {
12 $group{$1} = [split /\s+/, $2]; 134 $group{$1} = [split /\s+/, $2];
13 } elsif (/^!([^\t]*)\t\s*(.*)/) { 135 } elsif (/^!([^\t]*)\t\s*(.*)/) {
15 my @r; 137 my @r;
16 for (split /\s+/, $2) { 138 for (split /\s+/, $2) {
17 push @r, $group{$_} ? @{$group{$_}} : $_; 139 push @r, $group{$_} ? @{$group{$_}} : $_;
18 } 140 }
19 print "not($g) => (@r)\n"; 141 print "not($g) => (@r)\n";
142 push @{$blockuri{$_}}, $g for @r;
20 push @blocklist, [qr/$g/i, \@r]; 143 push @blockuri, [qr/$g/i, \@r];
21 } elsif (/\S/) { 144 } elsif (/\S/) {
22 print "blocklist: unparsable line: $_\n"; 145 print "blockuri: unparsable line: $_\n";
23 } 146 }
24 } 147 }
148 for (keys %blockuri) {
149 my $qr = join ")|(?:", @{$blockuri{$_}};
150 $blockuri{$_} = qr{(?:$qr)}i;
151 }
25 } else { 152 } else {
26 print "no blocklst\n"; 153 print "no blockuri\n";
27 } 154 }
28} 155}
29 156
157sub read_blockref {
158 local *B;
159 my @blockref;
160 if (open B, "<blockreferer") {
161 while (<B>) {
162 chomp;
163 if (/^([^\t]*)\t\s*(.*)/) {
164 push @blockref, $1;
165 } elsif (/\S/) {
166 print "blockref: unparsable line: $_\n";
167 }
168 }
169 $blockref = join ")|(?:", @blockref;
170 $blockref = qr{^(?:$blockref)}i;
171 } else {
172 print "no blockref\n";
173 $blockref = qr{^x^};
174 }
175}
176
30read_blocklist; 177read_blockuri;
178read_blockref;
31 179
180use Tie::Cache;
181tie %whois_cache, Tie::Cache::, 32;
182
32sub conn::access_check { 183sub access_check {
33 my $self = shift; 184 my $self = shift;
34 185
186 my $ref = $self->{h}{referer};
35 my $uri = $self->{path}; 187 my $uri = $self->{path};
36 my %disallow; 188 my %disallow;
37 189
38 for (@blocklist) { 190 $self->err_block_referer
39 if ($uri =~ $_->[0]) { 191 if $self->{h}{referer} =~ $blockref;
40 $disallow{$_}++ for @{$_->[1]}; 192
41 }
42 }
43
44 my $whois = ::ip_request($self->{remote_addr}); 193 my $whois = $whois_cache{$self->{remote_addr}}
194 ||= netgeo::ip_request($self->{remote_addr});
45 195
46 my $country = "XX"; 196 my $country = "XX";
47 197
48 if ($whois =~ /^\*cy: (\S+)/m) { 198 if ($whois =~ /^\*cy: (\S+)/m) {
49 $country = uc $1; 199 $country = uc $1;
50 } else { 200 } else {
51 $self->slog(9, "no country($whois)"); 201 $self->slog(9, "no country($whois)");
52 } 202 }
53 203
54 if ($disallow{$country}) { 204 $self->{country} = $country;
55 $self->slog(6, "DISALLOW($uri,$country)");
56 $whois =~ s/&/&amp;/g;
57 $whois =~ s/</&lt;/g;
58 $self->err(403, "forbidden", { "Content-Type" => "text/html" }, <<EOF);
59<html>
60<head>
61<title>This material is licensed in your country!</title>
62</head>
63<body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#000080" alink="#ff0000">
64 205
65<h1>This material is licensed in your country!</h1> 206 $self->err_block_country($whois)
66 207 if $self->{path} =~ $blockuri{$country};
67<p>My research has shown that your IP address
68(<b>$self->{remote_addr}</b>) most probably is located in this country:
69<b>$country</b> (ISO-3166-2 code, XX == unknown). The full record is:</p>
70
71<pre>
72$whois
73</pre>
74
75<p>My database says that the material you are trying to access is licensed
76in your country. If I would distribute these files to your country I would
77actively <em>hurt</em> the industry behind it, which includes the artists
78and authors of these videos/mangas. So I hope you understand that I try to
79avoid this.</p>
80
81<p>If you <em>really</em> think that this is wrong, i.e. the
82material you tried to access is <em>not</em> licensed in your
83country or your ip address was misdetected, you can write to <a
84href="mailto:licensed\@plan9.de">licensed\@plan9.de</a>. Please explain
85what happened and why you think this is wrong in as much detail as
86possible.</p>
87
88<div align="right">Thanks a lot for understanding.</div>
89
90</body>
91</html>
92EOF
93 }
94} 208}
95 209
961; 2101;

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