Coro/myhttpd/access.pl

package transferqueue;

sub new {
   my $class = shift;
   bless {
      slots   => $_[0],
      lastspb => 0,
      avgspb  => 0,
   }, $class;
}

sub start_transfer {
   my $self = shift;
   my $size = $_[0];

   my $transfer = bless {
      queue   => $self,
      time    => $::NOW,
      size    => $size,
      coro    => $Coro::current,
      started => 0,
   }, transfer::;

   push @{$self->{wait}}, $transfer;

   $self->wake_next;

   $transfer;
}

sub sort {
   my @queue = grep $_, @{$_[0]{wait}};

   $_->{spb} = ($::NOW-$_->{time}) / ($_->{size} || 1) for @queue;
   
   $_[0]{wait} = [sort { $b->{spb} <=> $a->{spb} } @queue];

   Scalar::Util::weaken $_ for @{$_[0]{wait}};
}

sub wake_next {
   my $self = shift;

   $self->sort;

   while($self->{slots} && @{$self->{wait}}) {
      my $transfer = shift @{$self->{wait}};
      if ($transfer) {
         $self->{lastspb} = $transfer->{spb};
         $self->{avgspb} ||= $transfer->{spb};
         $self->{avgspb} = $self->{avgspb} * 0.95 + $transfer->{spb} * 0.05;
         $self->{started}++;
         $transfer->wake;
         last;
      }
   }
}

sub waiters {
   $_[0]->sort;
   @{$_[0]{wait}};
}

package transfer;

use Coro::Timer ();

sub wake {
   my $self = shift;

   $self->{alloc} = 1;
   $self->{queue}{slots}--;
   $self->{wake} and $self->{wake}->ready;
}

sub try {
   my $self = shift;

   $self->{alloc} || do {
      my $timeout = Coro::Timer::timeout $_[0];
      local $self->{wake} = $self->{coro};

      Coro::schedule;

      $self->{alloc};
   }
}

sub DESTROY {
   my $self = shift;

   if ($self->{alloc}) {
      $self->{queue}{slots}++;
      $self->{queue}->wake_next;
   }
}

package conn;

our %blockuri;
our $blockref;

sub read_blockuri {
   local *B;
   my %group;
   %blockuri = ();
   if (open B, "<blockuri") {
      while (<B>) {
         chomp;
         if (/^group\s+(\S+)\s+(.*)/i) {
            $group{$1} = [split /\s+/, $2];
         } elsif (/^!([^\t]*)\t\s*(.*)/) {
            my $g = $1;
            my @r;
            for (split /\s+/, $2) {
               push @r, $group{$_} ? @{$group{$_}} : $_;
            }
            print "not($g) => (@r)\n";
            push @{$blockuri{$_}}, $g for @r;
            push @blockuri, [qr/$g/i, \@r];
         } elsif (/\S/) {
            print "blockuri: unparsable line: $_\n";
         }
      }
      for (keys %blockuri) {
         my $qr = join ")|(?:", @{$blockuri{$_}};
         $blockuri{$_} = qr{(?:$qr)}i;
      }
   } else {
      print "no blockuri\n";
   }
}

sub read_blockref {
   local *B;
   my @blockref;
   if (open B, "<blockreferer") {
      while (<B>) {
         chomp;
         if (/^([^\t]*)\t\s*(.*)/) {
            push @blockref, $1;
         } elsif (/\S/) {
            print "blockref: unparsable line: $_\n";
         }
      }
      $blockref = join ")|(?:", @blockref;
      $blockref = qr{^(?:$blockref)}i;
   } else {
      print "no blockref\n";
      $blockref = qr{^x^};
   }
}

read_blockuri;
read_blockref;

use Tie::Cache;
tie %whois_cache, Tie::Cache::, 32;

sub access_check {
   my $self = shift;

   my $ref = $self->{h}{referer};
   my $uri = $self->{path};
   my %disallow;

   $self->err_block_referer
      if $self->{h}{referer} =~ $blockref;

   my $whois = $whois_cache{$self->{remote_addr}}
               ||= netgeo::ip_request($self->{remote_addr});

   my $country = "XX";

   if ($whois =~ /^\*cy: (\S+)/m) {
      $country = uc $1;
   } else {
      $self->slog(9, "no country($whois)");
   }

   $self->{country} = $country;

   $self->err_block_country($whois)
      if $self->{path} =~ $blockuri{$country};
}

1;
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 *
#	User	Rev	Content
1	root	1.11	package transferqueue;
2
3			sub new {
4			my $class = shift;
5			bless {
6	root	1.19	slots => $_[0],
7			lastspb => 0,
8	root	1.20	avgspb => 0,
9	root	1.11	}, $class;
10			}
11
12			sub start_transfer {
13			my $self = shift;
14	root	1.19	my $size = $_[0];
15	root	1.11
16	root	1.20	my $transfer = bless {
17	root	1.22	queue => $self,
18			time => $::NOW,
19			size => $size,
20			coro => $Coro::current,
21			started => 0,
22	root	1.19	}, transfer::;
23	root	1.11
24	root	1.20	push @{$self->{wait}}, $transfer;
25	root	1.11
26	root	1.19	$self->wake_next;
27	root	1.11
28	root	1.22	$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	root	1.11	}
40
41			sub wake_next {
42			my $self = shift;
43
44	root	1.19	$self->sort;
45
46			while($self->{slots} && @{$self->{wait}}) {
47	root	1.18	my $transfer = shift @{$self->{wait}};
48			if ($transfer) {
49	root	1.19	$self->{lastspb} = $transfer->{spb};
50	root	1.20	$self->{avgspb} \|\|= $transfer->{spb};
51			$self->{avgspb} = $self->{avgspb} * 0.95 + $transfer->{spb} * 0.05;
52	root	1.22	$self->{started}++;
53	root	1.18	$transfer->wake;
54			last;
55	root	1.13	}
56			}
57	root	1.19	}
58
59	root	1.11	sub waiters {
60	root	1.19	$_[0]->sort;
61			@{$_[0]{wait}};
62	root	1.11	}
63
64			package transfer;
65
66			use Coro::Timer ();
67
68	root	1.16	sub wake {
69			my $self = shift;
70	root	1.19
71			$self->{alloc} = 1;
72			$self->{queue}{slots}--;
73			$self->{wake} and $self->{wake}->ready;
74	root	1.16	}
75
76	root	1.11	sub try {
77			my $self = shift;
78
79	root	1.19	$self->{alloc} \|\| do {
80	root	1.16	my $timeout = Coro::Timer::timeout $_[0];
81	root	1.19	local $self->{wake} = $self->{coro};
82	root	1.16
83	root	1.15	Coro::schedule;
84	root	1.19
85			$self->{alloc};
86	root	1.15	}
87	root	1.11	}
88
89			sub DESTROY {
90			my $self = shift;
91	root	1.19
92			if ($self->{alloc}) {
93			$self->{queue}{slots}++;
94			$self->{queue}->wake_next;
95			}
96	root	1.11	}
97
98	root	1.8	package conn;
99	root	1.1
100	root	1.8	our %blockuri;
101			our $blockref;
102	root	1.1
103	root	1.6	sub read_blockuri {
104	root	1.1	local *B;
105			my %group;
106	root	1.8	%blockuri = ();
107	root	1.6	if (open B, "<blockuri") {
108	root	1.1	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	root	1.8	push @{$blockuri{$_}}, $g for @r;
120	root	1.6	push @blockuri, [qr/$g/i, \@r];
121	root	1.1	} elsif (/\S/) {
122	root	1.6	print "blockuri: unparsable line: $_\n";
123	root	1.1	}
124			}
125	root	1.8	for (keys %blockuri) {
126			my $qr = join ")\|(?:", @{$blockuri{$_}};
127			$blockuri{$_} = qr{(?:$qr)}i;
128			}
129	root	1.1	} else {
130	root	1.6	print "no blockuri\n";
131	root	1.1	}
132			}
133
134	root	1.6	sub read_blockref {
135			local *B;
136	root	1.8	my @blockref;
137	root	1.6	if (open B, "<blockreferer") {
138			while (<B>) {
139			chomp;
140			if (/^([^\t])\t\s(.*)/) {
141	root	1.8	push @blockref, $1;
142	root	1.6	} elsif (/\S/) {
143			print "blockref: unparsable line: $_\n";
144			}
145			}
146	root	1.8	$blockref = join ")\|(?:", @blockref;
147			$blockref = qr{^(?:$blockref)}i;
148	root	1.6	} else {
149			print "no blockref\n";
150	root	1.8	$blockref = qr{^x^};
151	root	1.6	}
152			}
153
154			read_blockuri;
155			read_blockref;
156	root	1.1
157	root	1.5	use Tie::Cache;
158	root	1.10	tie %whois_cache, Tie::Cache::, 32;
159	root	1.1
160	root	1.8	sub access_check {
161	root	1.6	my $self = shift;
162
163			my $ref = $self->{h}{referer};
164			my $uri = $self->{path};
165			my %disallow;
166
167	root	1.8	$self->err_block_referer
168			if $self->{h}{referer} =~ $blockref;
169	root	1.6
170			my $whois = $whois_cache{$self->{remote_addr}}
171	root	1.9	\|\|= netgeo::ip_request($self->{remote_addr});
172	root	1.6
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	root	1.8	$self->err_block_country($whois)
184			if $self->{path} =~ $blockuri{$country};
185	root	1.1	}
186
187			1;