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/cvs/cvsroot/Coro/myhttpd/access.pl
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Comparing cvsroot/Coro/myhttpd/access.pl (file contents):
Revision 1.7 by root, Mon Aug 20 16:58:19 2001 UTC vs.
Revision 1.25 by root, Tue Dec 4 03:43:54 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 bless {
12 slots => $_[0],
13 lastspb => 0,
14 avgspb => 0,
15 }, $class;
16}
17
18sub start_transfer {
19 my $self = shift;
20 my $size = $_[0];
21
22 my $transfer = bless {
23 queue => $self,
24 time => $::NOW,
25 size => $size,
26 coro => $Coro::current,
27 started => 0,
28 }, transfer::;
29
30 push @{$self->{wait}}, $transfer;
31
32 $self->wake_next;
33
34 $transfer;
35}
36
37sub sort {
38 my @queue = grep $_, @{$_[0]{wait}};
39
40 $_->{spb} = ($::NOW-$_->{time}) / ($_->{size} || 1) for @queue;
41
42 $_[0]{wait} = [sort { $b->{spb} <=> $a->{spb} } @queue];
43
44 Scalar::Util::weaken $_ for @{$_[0]{wait}};
45}
46
47sub wake_next {
48 my $self = shift;
49
50 $self->sort;
51
52 while (@{$self->{wait}}) {
53 my $size = $self->{wait}[0]{size};
54 my $min = 0;
55 for (@reserve) {
56 last if $size <= $_->[0];
57 $min += $_->[1];
58 }
59 last unless $self->{slots} > $min;
60 my $transfer = shift @{$self->{wait}};
61 $self->{lastspb} = $transfer->{spb};
62 $self->{avgspb} ||= $transfer->{spb};
63 $self->{avgspb} = $self->{avgspb} * 0.95 + $transfer->{spb} * 0.05;
64 $self->{started}++;
65 $transfer->wake;
66 last;
67 }
68}
69
70sub waiters {
71 $_[0]->sort;
72 @{$_[0]{wait}};
73}
74
75package transfer;
76
77use Coro::Timer ();
78
79sub wake {
80 my $self = shift;
81
82 $self->{alloc} = 1;
83 $self->{queue}{slots}--;
84 $self->{wake} and $self->{wake}->ready;
85}
86
87sub try {
88 my $self = shift;
89
90 $self->{alloc} || do {
91 my $timeout = Coro::Timer::timeout $_[0];
92 local $self->{wake} = $self->{coro};
93
94 Coro::schedule;
95
96 $self->{alloc};
97 }
98}
99
100sub DESTROY {
101 my $self = shift;
102
103 if ($self->{alloc}) {
104 $self->{queue}{slots}++;
105 $self->{queue}->wake_next;
106 }
107}
108
109package conn;
110
2our @blockuri; 111our %blockuri;
3our @blockref; 112our $blockref;
4 113
5sub read_blockuri { 114sub read_blockuri {
6 local *B; 115 local *B;
7 my %group; 116 my %group;
8 @blockuri = (); 117 %blockuri = ();
9 if (open B, "<blockuri") { 118 if (open B, "<blockuri") {
10 while (<B>) { 119 while (<B>) {
11 chomp; 120 chomp;
12 if (/^group\s+(\S+)\s+(.*)/i) { 121 if (/^group\s+(\S+)\s+(.*)/i) {
13 $group{$1} = [split /\s+/, $2]; 122 $group{$1} = [split /\s+/, $2];
16 my @r; 125 my @r;
17 for (split /\s+/, $2) { 126 for (split /\s+/, $2) {
18 push @r, $group{$_} ? @{$group{$_}} : $_; 127 push @r, $group{$_} ? @{$group{$_}} : $_;
19 } 128 }
20 print "not($g) => (@r)\n"; 129 print "not($g) => (@r)\n";
130 push @{$blockuri{$_}}, $g for @r;
21 push @blockuri, [qr/$g/i, \@r]; 131 push @blockuri, [qr/$g/i, \@r];
22 } elsif (/\S/) { 132 } elsif (/\S/) {
23 print "blockuri: unparsable line: $_\n"; 133 print "blockuri: unparsable line: $_\n";
24 } 134 }
135 }
136 for (keys %blockuri) {
137 my $qr = join ")|(?:", @{$blockuri{$_}};
138 $blockuri{$_} = qr{(?:$qr)}i;
25 } 139 }
26 } else { 140 } else {
27 print "no blockuri\n"; 141 print "no blockuri\n";
28 } 142 }
29} 143}
30 144
31sub read_blockref { 145sub read_blockref {
32 local *B; 146 local *B;
33 @blockref = (); 147 my @blockref;
34 if (open B, "<blockreferer") { 148 if (open B, "<blockreferer") {
35 while (<B>) { 149 while (<B>) {
36 chomp; 150 chomp;
37 if (/^([^\t]*)\t\s*(.*)/) { 151 if (/^([^\t]*)\t\s*(.*)/) {
38 push @blockref, qr/^$1/i; 152 push @blockref, $1;
39 } elsif (/\S/) { 153 } elsif (/\S/) {
40 print "blockref: unparsable line: $_\n"; 154 print "blockref: unparsable line: $_\n";
41 } 155 }
42 } 156 }
157 $blockref = join ")|(?:", @blockref;
158 $blockref = qr{^(?:$blockref)}i;
43 } else { 159 } else {
44 print "no blockref\n"; 160 print "no blockref\n";
161 $blockref = qr{^x^};
45 } 162 }
46} 163}
47 164
48read_blockuri; 165read_blockuri;
49read_blockref; 166read_blockref;
50 167
51use Tie::Cache; 168use Tie::Cache;
52tie %whois_cache, Tie::Cache::, $MAX_CONNECTS * 1.5; 169tie %whois_cache, Tie::Cache::, 32;
53 170
54sub conn::err_block_country {
55 my $self = shift;
56 my $whois = shift;
57
58 $whois =~ s/&/&amp;/g;
59 $whois =~ s/</&lt;/g;
60 $self->err(403, "forbidden", { "Content-Type" => "text/html", Connection => "close" }, <<EOF);
61<html>
62<head>
63<title>This material is licensed in your country!</title>
64</head>
65<body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#000080" alink="#ff0000">
66
67<h1>This material is licensed in your country!</h1>
68
69<p>My research has shown that your IP address
70(<b>$self->{remote_addr}</b>) most probably is located in this country:
71<b>$self->{country}</b> (ISO-3166-2 code, XX == unknown). The full record is:</p>
72
73<pre>
74$whois
75</pre>
76
77<p>My database says that the material you are trying to access is licensed
78in your country. If I would distribute these files to your country I would
79actively <em>hurt</em> the industry behind it, which includes the artists
80and authors of these videos/mangas. So I hope you understand that I try to
81avoid this.</p>
82
83<p>Please see the <a href="http://www.goof.com/pcg/marc/animefaq.html#licensed">FAQ</a>
84for a more thorough explanation.</p>
85
86<p>If you <em>really</em> think that this is wrong, i.e. the
87material you tried to access is <em>not</em> licensed in your
88country or your ip address was misdetected, you can write to <a
89href="mailto:licensed\@plan9.de">licensed\@plan9.de</a>. Please explain
90what happened and why you think this is wrong in as much detail as
91possible.</p>
92
93<div align="right">Thanks a lot for understanding.</div>
94
95</body>
96</html>
97EOF
98}
99
100sub conn::err_block_referer {
101 my $self = shift;
102
103 my $uri = $self->{uri};
104 $uri =~ s/\/[^\/]+$/\//;
105
106 $self->slog(6, "REFERER($self->{uri},$self->{h}{referer})");
107
108 $whois =~ s/&/&amp;/g;
109 $whois =~ s/</&lt;/g;
110 $self->err(203, "non-authoritative", { "Content-Type" => "text/html" }, <<EOF);
111<html>
112<head>
113<title>Unallowed Referral</title>
114</head>
115<body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#000080" alink="#ff0000">
116
117<h1>The site which referred you has done something bad!</h1>
118
119<p>It seems that you are coming from this URL:</p>
120
121<pre>$self->{h}{referer}</pre>
122
123<p>This site has been blocked, either because it required you to pay
124money, forced you to click on banners, claimed these files were theirs
125or something very similar. Please note that you can download these files
126<em>without</em> having to pay, <em>without</em> clicking banners or jump
127through other hoops.</p>
128
129<p><b>Sites like the one you came from actively hurt the distribution of
130these files and the service quality for you since I can't move or correct
131files and you will likely not be able to see the full archive.</b></p>
132
133<p>Having that this, you can find the original content (if it is still
134there) by <b>following <a href="$uri">this link</a>.</b></p>
135
136<div align="right">Thanks a lot for understanding.</div>
137
138</body>
139</html>
140EOF
141}
142
143sub conn::access_check { 171sub access_check {
144 my $self = shift; 172 my $self = shift;
145 173
146 my $ref = $self->{h}{referer}; 174 my $ref = $self->{h}{referer};
147 my $uri = $self->{path}; 175 my $uri = $self->{path};
148 my %disallow; 176 my %disallow;
149 177
150 for (@blockref) {
151 $self->err_block_referer if $ref =~ $_; 178 $self->err_block_referer
152 } 179 if $self->{h}{referer} =~ $blockref;
153 180
154 for (@blockuri) {
155 if ($uri =~ $_->[0]) {
156 $disallow{$_}++ for @{$_->[1]};
157 }
158 }
159
160 my $whois = $whois_cache{$self->{remote_addr}} 181 my $whois = $whois_cache{$self->{remote_addr}}
161 ||= ::ip_request($self->{remote_addr}); 182 ||= netgeo::ip_request($self->{remote_addr});
162 183
163 my $country = "XX"; 184 my $country = "XX";
164 185
165 if ($whois =~ /^\*cy: (\S+)/m) { 186 if ($whois =~ /^\*cy: (\S+)/m) {
166 $country = uc $1; 187 $country = uc $1;
168 $self->slog(9, "no country($whois)"); 189 $self->slog(9, "no country($whois)");
169 } 190 }
170 191
171 $self->{country} = $country; 192 $self->{country} = $country;
172 193
173 if ($disallow{$country}) {
174 $self->err_block_country($whois); 194 $self->err_block_country($whois)
175 } 195 if $self->{path} =~ $blockuri{$country};
176} 196}
177 197
1781; 1981;

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