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Comparing Coro/myhttpd/access.pl (file contents):
Revision 1.4 by root, Tue Aug 14 04:33:58 2001 UTC vs.
Revision 1.29 by root, Wed Jan 23 03:07:05 2002 UTC

1package transferqueue;
1 2
3my @reserve = (
4 [ 1_200_000, 2],
5 [ 8_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} = $self->{avgspb} * 0.99 + $transfer->{spb} * 0.01;
69 $self->{started}++;
70 $transfer->wake;
71 last;
72 }
73}
74
75sub waiters {
76 $_[0]->sort;
77 @{$_[0]{wait}};
78}
79
80sub DESTROY {
81 my $self = shift;
82
83 $self->{reschedule}->cancel;
84}
85
86package transfer;
87
88use Coro::Timer ();
89
90sub wake {
91 my $self = shift;
92
93 $self->{alloc} = 1;
94 $self->{queue}{slots}--;
95 $self->{wake} and $self->{wake}->ready;
96}
97
98sub try {
99 my $self = shift;
100
101 $self->{alloc} || do {
102 my $timeout = Coro::Timer::timeout $_[0];
103 local $self->{wake} = $self->{coro};
104
105 Coro::schedule;
106
107 $self->{alloc};
108 }
109}
110
111sub DESTROY {
112 my $self = shift;
113
114 if ($self->{alloc}) {
115 $self->{queue}{slots}++;
116 $self->{queue}->wake_next;
117 }
118}
119
120package conn;
121
2our @blocklist; 122our %blockuri;
123our $blockref;
3 124
4sub read_blocklist { 125sub read_blockuri {
5 local *B; 126 local *B;
6 my %group; 127 my %group;
7 @blocklist = (); 128 %blockuri = ();
8 if (open B, "<blocklist") { 129 if (open B, "<blockuri") {
9 while (<B>) { 130 while (<B>) {
10 chomp; 131 chomp;
11 if (/^group\s+(\S+)\s+(.*)/i) { 132 if (/^group\s+(\S+)\s+(.*)/i) {
12 $group{$1} = [split /\s+/, $2]; 133 $group{$1} = [split /\s+/, $2];
13 } elsif (/^!([^\t]*)\t\s*(.*)/) { 134 } elsif (/^!([^\t]*)\t\s*(.*)/) {
15 my @r; 136 my @r;
16 for (split /\s+/, $2) { 137 for (split /\s+/, $2) {
17 push @r, $group{$_} ? @{$group{$_}} : $_; 138 push @r, $group{$_} ? @{$group{$_}} : $_;
18 } 139 }
19 print "not($g) => (@r)\n"; 140 print "not($g) => (@r)\n";
141 push @{$blockuri{$_}}, $g for @r;
20 push @blocklist, [qr/$g/i, \@r]; 142 push @blockuri, [qr/$g/i, \@r];
21 } elsif (/\S/) { 143 } elsif (/\S/) {
22 print "blocklist: unparsable line: $_\n"; 144 print "blockuri: unparsable line: $_\n";
23 } 145 }
24 } 146 }
147 for (keys %blockuri) {
148 my $qr = join ")|(?:", @{$blockuri{$_}};
149 $blockuri{$_} = qr{(?:$qr)}i;
150 }
25 } else { 151 } else {
26 print "no blocklst\n"; 152 print "no blockuri\n";
27 } 153 }
28} 154}
29 155
156sub read_blockref {
157 local *B;
158 my @blockref;
159 if (open B, "<blockreferer") {
160 while (<B>) {
161 chomp;
162 if (/^([^\t]*)\t\s*(.*)/) {
163 push @blockref, $1;
164 } elsif (/\S/) {
165 print "blockref: unparsable line: $_\n";
166 }
167 }
168 $blockref = join ")|(?:", @blockref;
169 $blockref = qr{^(?:$blockref)}i;
170 } else {
171 print "no blockref\n";
172 $blockref = qr{^x^};
173 }
174}
175
30read_blocklist; 176read_blockuri;
177read_blockref;
31 178
179use Tie::Cache;
180tie %whois_cache, Tie::Cache::, 32;
181
32sub conn::access_check { 182sub access_check {
33 my $self = shift; 183 my $self = shift;
34 184
185 my $ref = $self->{h}{referer};
35 my $uri = $self->{path}; 186 my $uri = $self->{path};
36 my %disallow; 187 my %disallow;
37 188
38 for (@blocklist) { 189 $self->err_block_referer
39 if ($uri =~ $_->[0]) { 190 if $self->{h}{referer} =~ $blockref;
40 $disallow{$_}++ for @{$_->[1]}; 191
41 }
42 }
43
44 my $whois = ::ip_request($self->{remote_addr}); 192 my $whois = $whois_cache{$self->{remote_addr}}
193 ||= netgeo::ip_request($self->{remote_addr});
45 194
46 my $country = "XX"; 195 my $country = "XX";
47 196
48 if ($whois =~ /^\*cy: (\S+)/m) { 197 if ($whois =~ /^\*cy: (\S+)/m) {
49 $country = uc $1; 198 $country = uc $1;
51 $self->slog(9, "no country($whois)"); 200 $self->slog(9, "no country($whois)");
52 } 201 }
53 202
54 $self->{country} = $country; 203 $self->{country} = $country;
55 204
56 if ($disallow{$country}) { 205 $self->err_block_country($whois)
57 $self->slog(6, "DISALLOW($uri,$country)"); 206 if $self->{path} =~ $blockuri{$country};
58
59 $whois =~ s/&/&amp;/g;
60 $whois =~ s/</&lt;/g;
61 $self->err(403, "forbidden", { "Content-Type" => "text/html" }, <<EOF);
62<html>
63<head>
64<title>This material is licensed in your country!</title>
65</head>
66<body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#000080" alink="#ff0000">
67
68<h1>This material is licensed in your country!</h1>
69
70<p>My research has shown that your IP address
71(<b>$self->{remote_addr}</b>) most probably is located in this country:
72<b>$country</b> (ISO-3166-2 code, XX == unknown). The full record is:</p>
73
74<pre>
75$whois
76</pre>
77
78<p>My database says that the material you are trying to access is licensed
79in your country. If I would distribute these files to your country I would
80actively <em>hurt</em> the industry behind it, which includes the artists
81and authors of these videos/mangas. So I hope you understand that I try to
82avoid this.</p>
83
84<p>If you <em>really</em> think that this is wrong, i.e. the
85material you tried to access is <em>not</em> licensed in your
86country or your ip address was misdetected, you can write to <a
87href="mailto:licensed\@plan9.de">licensed\@plan9.de</a>. Please explain
88what happened and why you think this is wrong in as much detail as
89possible.</p>
90
91<div align="right">Thanks a lot for understanding.</div>
92
93</body>
94</html>
95EOF
96 }
97} 207}
98 208
991; 2091;

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