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/cvs/cvsroot/Coro/myhttpd/access.pl
Revision: 1.22
Committed: Mon Dec 3 14:44:14 2001 UTC (22 years, 7 months ago) by root
Content type: text/plain
Branch: MAIN
Changes since 1.21: +17 -14 lines
Log Message:
*** empty log message ***

File Contents

# Content
1 package transferqueue;
2
3 sub new {
4 my $class = shift;
5 bless {
6 slots => $_[0],
7 lastspb => 0,
8 avgspb => 0,
9 }, $class;
10 }
11
12 sub start_transfer {
13 my $self = shift;
14 my $size = $_[0];
15
16 my $transfer = bless {
17 queue => $self,
18 time => $::NOW,
19 size => $size,
20 coro => $Coro::current,
21 started => 0,
22 }, transfer::;
23
24 push @{$self->{wait}}, $transfer;
25
26 $self->wake_next;
27
28 $transfer;
29 }
30
31 sub sort {
32 my @queue = grep $_, @{$_[0]{wait}};
33
34 $_->{spb} = ($::NOW-$_->{time}) / ($_->{size} || 1) for @queue;
35
36 $_[0]{wait} = [sort { $b->{spb} <=> $a->{spb} } @queue];
37
38 Scalar::Util::weaken $_ for @{$_[0]{wait}};
39 }
40
41 sub wake_next {
42 my $self = shift;
43
44 $self->sort;
45
46 while($self->{slots} && @{$self->{wait}}) {
47 my $transfer = shift @{$self->{wait}};
48 if ($transfer) {
49 $self->{lastspb} = $transfer->{spb};
50 $self->{avgspb} ||= $transfer->{spb};
51 $self->{avgspb} = $self->{avgspb} * 0.95 + $transfer->{spb} * 0.05;
52 $self->{started}++;
53 $transfer->wake;
54 last;
55 }
56 }
57 }
58
59 sub waiters {
60 $_[0]->sort;
61 @{$_[0]{wait}};
62 }
63
64 package transfer;
65
66 use Coro::Timer ();
67
68 sub wake {
69 my $self = shift;
70
71 $self->{alloc} = 1;
72 $self->{queue}{slots}--;
73 $self->{wake} and $self->{wake}->ready;
74 }
75
76 sub try {
77 my $self = shift;
78
79 $self->{alloc} || do {
80 my $timeout = Coro::Timer::timeout $_[0];
81 local $self->{wake} = $self->{coro};
82
83 Coro::schedule;
84
85 $self->{alloc};
86 }
87 }
88
89 sub DESTROY {
90 my $self = shift;
91
92 if ($self->{alloc}) {
93 $self->{queue}{slots}++;
94 $self->{queue}->wake_next;
95 }
96 }
97
98 package conn;
99
100 our %blockuri;
101 our $blockref;
102
103 sub read_blockuri {
104 local *B;
105 my %group;
106 %blockuri = ();
107 if (open B, "<blockuri") {
108 while (<B>) {
109 chomp;
110 if (/^group\s+(\S+)\s+(.*)/i) {
111 $group{$1} = [split /\s+/, $2];
112 } elsif (/^!([^\t]*)\t\s*(.*)/) {
113 my $g = $1;
114 my @r;
115 for (split /\s+/, $2) {
116 push @r, $group{$_} ? @{$group{$_}} : $_;
117 }
118 print "not($g) => (@r)\n";
119 push @{$blockuri{$_}}, $g for @r;
120 push @blockuri, [qr/$g/i, \@r];
121 } elsif (/\S/) {
122 print "blockuri: unparsable line: $_\n";
123 }
124 }
125 for (keys %blockuri) {
126 my $qr = join ")|(?:", @{$blockuri{$_}};
127 $blockuri{$_} = qr{(?:$qr)}i;
128 }
129 } else {
130 print "no blockuri\n";
131 }
132 }
133
134 sub read_blockref {
135 local *B;
136 my @blockref;
137 if (open B, "<blockreferer") {
138 while (<B>) {
139 chomp;
140 if (/^([^\t]*)\t\s*(.*)/) {
141 push @blockref, $1;
142 } elsif (/\S/) {
143 print "blockref: unparsable line: $_\n";
144 }
145 }
146 $blockref = join ")|(?:", @blockref;
147 $blockref = qr{^(?:$blockref)}i;
148 } else {
149 print "no blockref\n";
150 $blockref = qr{^x^};
151 }
152 }
153
154 read_blockuri;
155 read_blockref;
156
157 use Tie::Cache;
158 tie %whois_cache, Tie::Cache::, 32;
159
160 sub access_check {
161 my $self = shift;
162
163 my $ref = $self->{h}{referer};
164 my $uri = $self->{path};
165 my %disallow;
166
167 $self->err_block_referer
168 if $self->{h}{referer} =~ $blockref;
169
170 my $whois = $whois_cache{$self->{remote_addr}}
171 ||= netgeo::ip_request($self->{remote_addr});
172
173 my $country = "XX";
174
175 if ($whois =~ /^\*cy: (\S+)/m) {
176 $country = uc $1;
177 } else {
178 $self->slog(9, "no country($whois)");
179 }
180
181 $self->{country} = $country;
182
183 $self->err_block_country($whois)
184 if $self->{path} =~ $blockuri{$country};
185 }
186
187 1;