1 | use Coro; |
1 | use Coro; |
2 | use Coro::Semaphore; |
2 | use Coro::Semaphore; |
3 | use Coro::Event; |
3 | use Coro::Event; |
4 | use Coro::Socket; |
4 | use Coro::Socket; |
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5 | use Coro::Signal; |
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6 | use Coro::AIO (); |
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7 | |
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8 | use HTTP::Date; |
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9 | use POSIX (); |
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10 | |
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11 | use Compress::Zlib (); |
5 | |
12 | |
6 | no utf8; |
13 | no utf8; |
7 | use bytes; |
14 | use bytes; |
8 | |
15 | |
9 | # at least on my machine, this thingy serves files |
16 | # at least on my machine, this thingy serves files |
… | |
… | |
11 | # and quite a bit slower than thttpd :( |
18 | # and quite a bit slower than thttpd :( |
12 | |
19 | |
13 | $SIG{PIPE} = 'IGNORE'; |
20 | $SIG{PIPE} = 'IGNORE'; |
14 | |
21 | |
15 | our $accesslog; |
22 | our $accesslog; |
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23 | our $errorlog; |
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24 | |
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25 | our $NOW; |
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26 | our $HTTP_NOW; |
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27 | |
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28 | our $ERROR_LOG; |
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29 | our $ACCESS_LOG; |
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30 | |
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31 | Event->timer(interval => 1, hard => 1, cb => sub { |
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32 | $NOW = time; |
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33 | $HTTP_NOW = time2str $NOW; |
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34 | })->now; |
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35 | |
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36 | if ($ERROR_LOG) { |
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37 | use IO::Handle; |
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38 | open $errorlog, ">>$ERROR_LOG" |
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39 | or die "$ERROR_LOG: $!"; |
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40 | $errorlog->autoflush(1); |
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41 | } |
16 | |
42 | |
17 | if ($ACCESS_LOG) { |
43 | if ($ACCESS_LOG) { |
18 | use IO::Handle; |
44 | use IO::Handle; |
19 | open $accesslog, ">>$ACCESS_LOG" |
45 | open $accesslog, ">>$ACCESS_LOG" |
20 | or die "$ACCESS_LOG: $!"; |
46 | or die "$ACCESS_LOG: $!"; |
… | |
… | |
22 | } |
48 | } |
23 | |
49 | |
24 | sub slog { |
50 | sub slog { |
25 | my $level = shift; |
51 | my $level = shift; |
26 | my $format = shift; |
52 | my $format = shift; |
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53 | my $NOW = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW); |
27 | printf "---: $format\n", @_; |
54 | printf "$NOW: $format\n", @_; |
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55 | printf $errorlog "$NOW: $format\n", @_ if $errorlog; |
28 | } |
56 | } |
29 | |
57 | |
30 | my $connections = new Coro::Semaphore $MAX_CONNECTS; |
58 | our $connections = new Coro::Semaphore $MAX_CONNECTS || 250; |
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59 | our $httpevent = new Coro::Signal; |
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60 | |
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61 | our $queue_file = new transferqueue $MAX_TRANSFERS; |
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62 | our $queue_index = new transferqueue 10; |
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63 | |
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64 | our $tbf_top = new tbf rate => $TBF_RATE || 100000; |
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65 | |
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66 | my $unused_bytes = 0; |
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67 | my $unused_last = time; |
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68 | |
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69 | sub unused_bandwidth { |
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70 | $unused_bytes += $_[0]; |
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71 | if ($unused_last < $NOW - 30 && $unused_bytes / ($NOW - $unused_last) > 50000) { |
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72 | $unused_last = $NOW; |
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73 | $unused_bytes = 0; |
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74 | $queue_file->force_wake_next; |
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75 | slog 1, "forced filetransfer due to unused bandwidth"; |
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76 | } |
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77 | } |
31 | |
78 | |
32 | my @newcons; |
79 | my @newcons; |
33 | my @pool; |
80 | my @pool; |
34 | |
81 | |
35 | # one "execution thread" |
82 | # one "execution thread" |
36 | sub handler { |
83 | sub handler { |
37 | while () { |
84 | while () { |
38 | my $new = pop @newcons; |
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39 | if ($new) { |
85 | if (@newcons) { |
40 | eval { |
86 | eval { |
41 | conn->new(@$new)->handle; |
87 | conn->new (@{pop @newcons})->handle; |
42 | }; |
88 | }; |
43 | slog 1, "$@" if $@ && !ref $@; |
89 | slog 1, "$@" if $@ && !ref $@; |
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90 | |
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91 | $httpevent->broadcast; # only for testing, but doesn't matter much |
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92 | |
44 | $connections->up; |
93 | $connections->up; |
45 | } else { |
94 | } else { |
46 | last if @pool >= $MAX_POOL; |
95 | last if @pool >= $MAX_POOL; |
47 | push @pool, $Coro::current; |
96 | push @pool, $Coro::current; |
48 | schedule; |
97 | schedule; |
49 | } |
98 | } |
50 | } |
99 | } |
51 | } |
100 | } |
52 | |
101 | |
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102 | sub listen_on { |
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103 | my $listen = $_[0]; |
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104 | |
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105 | push @listen_sockets, $listen; |
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106 | |
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107 | # the "main thread" |
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108 | async { |
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109 | slog 1, "accepting connections"; |
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110 | while () { |
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111 | $connections->down; |
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112 | push @newcons, [$listen->accept]; |
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113 | #slog 3, "accepted @$connections ".scalar(@pool); |
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114 | if (@pool) { |
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115 | (pop @pool)->ready; |
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116 | } else { |
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117 | async \&handler; |
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118 | } |
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119 | } |
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120 | }; |
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121 | } |
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122 | |
53 | my $http_port = new Coro::Socket |
123 | my $http_port = new Coro::Socket |
54 | LocalAddr => $SERVER_HOST, |
124 | LocalAddr => $SERVER_HOST, |
55 | LocalPort => $SERVER_PORT, |
125 | LocalPort => $SERVER_PORT, |
56 | ReuseAddr => 1, |
126 | ReuseAddr => 1, |
57 | Listen => 50, |
127 | Listen => 50, |
58 | or die "unable to start server"; |
128 | or die "unable to start server"; |
59 | |
129 | |
60 | push @listen_sockets, $http_port; |
130 | listen_on $http_port; |
61 | |
131 | |
62 | # the "main thread" |
132 | if ($SERVER_PORT2) { |
63 | async { |
133 | my $http_port = new Coro::Socket |
64 | slog 1, "accepting connections"; |
134 | LocalAddr => $SERVER_HOST, |
65 | while () { |
135 | LocalPort => $SERVER_PORT2, |
66 | $connections->down; |
136 | ReuseAddr => 1, |
67 | push @newcons, [$http_port->accept]; |
137 | Listen => 50, |
68 | #slog 3, "accepted @$connections ".scalar(@pool); |
138 | or die "unable to start server"; |
69 | $::NOW = time; |
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70 | if (@pool) { |
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71 | (pop @pool)->ready; |
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72 | } else { |
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73 | async \&handler; |
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74 | } |
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75 | |
139 | |
76 | } |
140 | listen_on $http_port; |
77 | }; |
141 | } |
78 | |
142 | |
79 | package conn; |
143 | package conn; |
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144 | |
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145 | use strict; |
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146 | use bytes; |
80 | |
147 | |
81 | use Socket; |
148 | use Socket; |
82 | use HTTP::Date; |
149 | use HTTP::Date; |
83 | use Convert::Scalar 'weaken'; |
150 | use Convert::Scalar 'weaken'; |
84 | use Linux::AIO; |
151 | use IO::AIO; |
85 | |
152 | |
86 | Linux::AIO::min_parallel $::AIO_PARALLEL; |
153 | IO::AIO::min_parallel $::AIO_PARALLEL; |
87 | |
154 | |
88 | my $aio_requests = new Coro::Semaphore $::AIO_PARALLEL * 4; |
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89 | |
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90 | Event->io(fd => Linux::AIO::poll_fileno, |
155 | Event->io (fd => IO::AIO::poll_fileno, |
91 | poll => 'r', async => 1, |
156 | poll => 'r', async => 1, |
92 | cb => \&Linux::AIO::poll_cb); |
157 | cb => \&IO::AIO::poll_cb); |
93 | |
158 | |
94 | our %conn; # $conn{ip}{self} => connobj |
159 | our %conn; # $conn{ip}{self} => connobj |
95 | our %uri; # $uri{ip}{uri}{self} |
160 | our %uri; # $uri{ip}{uri}{self} |
96 | our %blocked; |
161 | our %blocked; |
97 | our %mimetype; |
162 | our %mimetype; |
98 | |
163 | |
99 | sub read_mimetypes { |
164 | sub read_mimetypes { |
100 | local *M; |
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101 | if (open M, "<mime_types") { |
165 | if (open my $fh, "<mime_types") { |
102 | while (<M>) { |
166 | while (<$fh>) { |
103 | if (/^([^#]\S+)\t+(\S+)$/) { |
167 | if (/^([^#]\S+)\t+(\S+)$/) { |
104 | $mimetype{lc $1} = $2; |
168 | $mimetype{lc $1} = $2; |
105 | } |
169 | } |
106 | } |
170 | } |
107 | } else { |
171 | } else { |
… | |
… | |
111 | |
175 | |
112 | read_mimetypes; |
176 | read_mimetypes; |
113 | |
177 | |
114 | sub new { |
178 | sub new { |
115 | my $class = shift; |
179 | my $class = shift; |
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180 | my $fh = shift; |
116 | my $peername = shift; |
181 | my $peername = shift; |
117 | my $fh = shift; |
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118 | my $self = bless { fh => $fh }, $class; |
182 | my $self = bless { fh => $fh }, $class; |
119 | my (undef, $iaddr) = unpack_sockaddr_in $peername |
183 | my (undef, $iaddr) = unpack_sockaddr_in $peername |
120 | or $self->err(500, "unable to decode peername"); |
184 | or $self->err (500, "unable to decode peername"); |
121 | |
185 | |
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186 | $self->{remote_addr} = |
122 | $self->{remote_addr} = inet_ntoa $iaddr; |
187 | $self->{remote_id} = inet_ntoa $iaddr; |
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188 | |
123 | $self->{time} = $::NOW; |
189 | $self->{time} = $::NOW; |
124 | |
190 | |
125 | # enter ourselves into various lists |
191 | weaken ($Coro::current->{conn} = $self); |
126 | weaken ($conn{$self->{remote_addr}}{$self*1} = $self); |
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127 | |
192 | |
128 | $::conns++; |
193 | ++$::conns; |
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194 | $::maxconns = $::conns if $::conns > $::maxconns; |
129 | |
195 | |
130 | $self; |
196 | $self |
131 | } |
197 | } |
132 | |
198 | |
133 | sub DESTROY { |
199 | sub DESTROY { |
134 | my $self = shift; |
200 | my $self = shift; |
135 | |
201 | |
136 | $::conns--; |
202 | --$::conns; |
137 | |
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138 | $self->eoconn; |
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139 | delete $conn{$self->{remote_addr}}{$self*1}; |
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140 | } |
203 | } |
141 | |
204 | |
142 | # end of connection |
205 | sub prune_cache { |
143 | sub eoconn { |
206 | my $hash = $_[0]; |
144 | my $self = shift; |
207 | |
145 | delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1}; |
208 | for (keys %$hash) { |
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209 | if (ref $hash->{$_} eq HASH::) { |
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210 | prune_cache($hash->{$_}); |
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211 | unless (scalar keys %{$hash->{$_}}) { |
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212 | delete $hash->{$_}; |
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213 | } |
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214 | } |
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215 | } |
146 | } |
216 | } |
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217 | |
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218 | sub prune_caches { |
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219 | prune_cache \%conn; |
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220 | prune_cache \%uri; |
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221 | |
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222 | for (keys %blocked) { |
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223 | delete $blocked{$_} unless $blocked{$_}[0] > $::NOW; |
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224 | } |
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225 | } |
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226 | |
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227 | Event->timer (interval => 60, cb => \&prune_caches); |
147 | |
228 | |
148 | sub slog { |
229 | sub slog { |
149 | my $self = shift; |
230 | my $self = shift; |
150 | main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]"); |
231 | main::slog($_[0], "$self->{remote_id}> $_[1]"); |
151 | } |
232 | } |
152 | |
233 | |
153 | sub response { |
234 | sub response { |
154 | my ($self, $code, $msg, $hdr, $content) = @_; |
235 | my ($self, $code, $msg, $hdr, $content) = @_; |
155 | my $res = "HTTP/1.1 $code $msg\015\012"; |
236 | my $res = "HTTP/1.1 $code $msg\015\012"; |
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237 | my $GZ = ""; |
156 | |
238 | |
157 | $self->{h}{connection} ||= $hdr->{Connection}; |
239 | if (exists $hdr->{Connection}) { |
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240 | if ($hdr->{Connection} =~ /close/) { |
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241 | $self->{h}{connection} = "close" |
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242 | } |
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243 | } else { |
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244 | if ($self->{version} < 1.1) { |
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245 | if ($self->{h}{connection} =~ /keep-alive/i) { |
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246 | $hdr->{Connection} = "Keep-Alive"; |
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247 | } else { |
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248 | $self->{h}{connection} = "close" |
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249 | } |
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250 | } |
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251 | } |
158 | |
252 | |
159 | $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( |
253 | if ($self->{method} ne "HEAD" |
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254 | && $self->{h}{"accept-encoding"} =~ /\bgzip\b/ |
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255 | && 400 < length $content |
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256 | && $hdr->{"Content-Length"} == length $content |
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257 | && !exists $hdr->{"Content-Encoding"} |
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258 | ) { |
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259 | my $orig = length $content; |
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260 | $hdr->{"Content-Encoding"} = "gzip"; |
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261 | $content = Compress::Zlib::memGzip(\$content); |
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262 | $hdr->{"Content-Length"} = length $content; |
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263 | $GZ = sprintf "GZ%02d", 100 - 100*((length $content) / $orig); |
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264 | } |
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265 | |
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266 | $res .= "Date: $HTTP_NOW\015\012"; |
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267 | $res .= "Server: $::NAME\015\012"; |
160 | |
268 | |
161 | while (my ($h, $v) = each %$hdr) { |
269 | while (my ($h, $v) = each %$hdr) { |
162 | $res .= "$h: $v\015\012" |
270 | $res .= "$h: $v\015\012" |
163 | } |
271 | } |
164 | $res .= "\015\012"; |
272 | $res .= "\015\012"; |
165 | |
273 | |
166 | $res .= $content if defined $content and $self->{method} ne "HEAD"; |
274 | $res .= $content if defined $content and $self->{method} ne "HEAD"; |
167 | |
275 | |
168 | my $log = "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n"; |
276 | my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW). |
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277 | " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}.$GZ. |
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278 | " \"$self->{h}{referer}\"\n"; |
169 | |
279 | |
170 | print $accesslog $log if $accesslog; |
280 | print $::accesslog $log if $::accesslog; |
171 | print STDERR $log; |
281 | print STDERR $log; |
172 | |
282 | |
173 | $self->{written} += |
283 | $tbf_top->request(length $res, 1e6); |
174 | print {$self->{fh}} $res; |
284 | $self->{written} += print {$self->{fh}} $res; |
175 | } |
285 | } |
176 | |
286 | |
177 | sub err { |
287 | sub err { |
178 | my $self = shift; |
288 | my $self = shift; |
179 | my ($code, $msg, $hdr, $content) = @_; |
289 | my ($code, $msg, $hdr, $content) = @_; |
180 | |
290 | |
181 | unless (defined $content) { |
291 | unless (defined $content) { |
182 | $content = "$code $msg"; |
292 | $content = "$code $msg\n"; |
183 | $hdr->{"Content-Type"} = "text/plain"; |
293 | $hdr->{"Content-Type"} = "text/plain"; |
184 | $hdr->{"Content-Length"} = length $content; |
294 | $hdr->{"Content-Length"} = length $content; |
185 | } |
295 | } |
186 | $hdr->{"Connection"} = "close"; |
296 | $hdr->{"Connection"} = "close"; |
187 | |
297 | |
188 | $self->response($code, $msg, $hdr, $content); |
298 | $self->response ($code, $msg, $hdr, $content); |
189 | |
299 | |
190 | die bless {}, err::; |
300 | die bless {}, err:: |
191 | } |
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192 | |
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193 | sub err_blocked { |
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194 | my $self = shift; |
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195 | my $ip = $self->{remote_addr}; |
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196 | my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME; |
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197 | |
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198 | Coro::Event::do_timer(after => 20*rand); |
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199 | |
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200 | $self->err(401, "too many connections", |
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201 | { |
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202 | "Content-Type" => "text/html", |
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203 | "Retry-After" => $::BLOCKTIME, |
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204 | "Warning" => "Please do NOT retry, you have been blocked", |
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205 | "WWW-Authenticate" => "Basic realm=\"Please do NOT retry, you have been blocked\"", |
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206 | "Connection" => "close", |
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207 | }, |
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208 | <<EOF); |
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209 | <html> |
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210 | <head> |
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211 | <title>Too many connections</title> |
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212 | </head> |
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213 | <body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#000080" alink="#ff0000"> |
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214 | |
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215 | <p>You have been blocked because you opened too many connections. You |
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216 | may retry at</p> |
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217 | |
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218 | <p><blockquote>$time.</blockquote></p> |
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219 | |
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220 | <p>Until then, each new access will renew the block. You might want to have a |
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221 | look at the <a href="http://www.goof.com/pcg/marc/animefaq.html#connectionlimit">FAQ</a>.</p> |
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222 | |
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223 | </body></html> |
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224 | EOF |
|
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225 | } |
301 | } |
226 | |
302 | |
227 | sub handle { |
303 | sub handle { |
228 | my $self = shift; |
304 | my $self = shift; |
229 | my $fh = $self->{fh}; |
305 | my $fh = $self->{fh}; |
230 | |
306 | |
231 | my $host; |
307 | my $host; |
232 | |
308 | |
233 | $fh->timeout($::REQ_TIMEOUT); |
309 | $fh->timeout($::REQ_TIMEOUT); |
234 | while() { |
310 | while () { |
235 | $self->{reqs}++; |
311 | $self->{reqs}++; |
236 | |
312 | |
237 | # read request and parse first line |
313 | # read request and parse first line |
238 | my $req = $fh->readline("\015\012\015\012"); |
314 | my $req = $fh->readline("\015\012\015\012"); |
239 | |
315 | |
… | |
… | |
246 | } |
322 | } |
247 | |
323 | |
248 | $self->{h} = {}; |
324 | $self->{h} = {}; |
249 | |
325 | |
250 | $fh->timeout($::RES_TIMEOUT); |
326 | $fh->timeout($::RES_TIMEOUT); |
251 | my $ip = $self->{remote_addr}; |
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252 | |
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253 | if ($blocked{$ip}) { |
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254 | $self->err_blocked($blocked{$ip}) |
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255 | if $blocked{$ip} > $::NOW; |
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256 | |
|
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257 | delete $blocked{$ip}; |
|
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258 | } |
|
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259 | |
|
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260 | if (%{$conn{$ip}} > $::MAX_CONN_IP) { |
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261 | $self->slog(2, "blocked ip $ip"); |
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262 | $self->err_blocked; |
|
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263 | } |
|
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264 | |
327 | |
265 | $req =~ /^(?:\015\012)? |
328 | $req =~ /^(?:\015\012)? |
266 | (GET|HEAD) \040+ |
329 | (GET|HEAD) \040+ |
267 | ([^\040]+) \040+ |
330 | ([^\040]+) \040+ |
268 | HTTP\/([0-9]+\.[0-9]+) |
331 | HTTP\/([0-9]+\.[0-9]+) |
… | |
… | |
281 | my (%hdr, $h, $v); |
344 | my (%hdr, $h, $v); |
282 | |
345 | |
283 | $hdr{lc $1} .= ",$2" |
346 | $hdr{lc $1} .= ",$2" |
284 | while $req =~ /\G |
347 | while $req =~ /\G |
285 | ([^:\000-\040]+): |
348 | ([^:\000-\040]+): |
286 | [\008\040]* |
349 | [\011\040]* |
287 | ((?: [^\015\012]+ | \015\012[\008\040] )*) |
350 | ((?: [^\015\012]+ | \015\012[\011\040] )*) |
288 | \015\012 |
351 | \015\012 |
289 | /gxc; |
352 | /gxc; |
290 | |
353 | |
291 | $req =~ /\G\015\012$/ |
354 | $req =~ /\G\015\012$/ |
292 | or $self->err(400, "bad request"); |
355 | or $self->err(400, "bad request"); |
293 | |
356 | |
294 | $self->{h}{$h} = substr $v, 1 |
357 | $self->{h}{$h} = substr $v, 1 |
295 | while ($h, $v) = each %hdr; |
358 | while ($h, $v) = each %hdr; |
|
|
359 | } |
|
|
360 | |
|
|
361 | # remote id should be unique per user |
|
|
362 | my $id = $self->{remote_addr}; |
|
|
363 | |
|
|
364 | if (exists $self->{h}{"client-ip"}) { |
|
|
365 | $id .= "[".$self->{h}{"client-ip"}."]"; |
|
|
366 | } elsif (exists $self->{h}{"x-forwarded-for"}) { |
|
|
367 | $id .= "[".$self->{h}{"x-forwarded-for"}."]"; |
|
|
368 | } |
|
|
369 | |
|
|
370 | $self->{remote_id} = $id; |
|
|
371 | |
|
|
372 | weaken (local $conn{$id}{$self*1} = $self); |
|
|
373 | |
|
|
374 | if ($blocked{$id}) { |
|
|
375 | $self->err_blocked |
|
|
376 | if $blocked{$id}[0] > $::NOW; |
|
|
377 | |
|
|
378 | delete $blocked{$id}; |
296 | } |
379 | } |
297 | |
380 | |
298 | # find out server name and port |
381 | # find out server name and port |
299 | if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) { |
382 | if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) { |
300 | $host = $1; |
383 | $host = $1; |
… | |
… | |
304 | |
387 | |
305 | if (defined $host) { |
388 | if (defined $host) { |
306 | $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80; |
389 | $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80; |
307 | } else { |
390 | } else { |
308 | ($self->{server_port}, $host) |
391 | ($self->{server_port}, $host) |
309 | = unpack_sockaddr_in $self->{fh}->getsockname |
392 | = unpack_sockaddr_in $self->{fh}->sockname |
310 | or $self->err(500, "unable to get socket name"); |
393 | or $self->err(500, "unable to get socket name"); |
311 | $host = inet_ntoa $host; |
394 | $host = inet_ntoa $host; |
312 | } |
395 | } |
313 | |
396 | |
314 | $self->{server_name} = $host; |
397 | $self->{server_name} = $host; |
315 | |
398 | |
316 | # remote id should be unique per user |
|
|
317 | $self->{remote_id} = $self->{remote_addr}; |
|
|
318 | |
|
|
319 | if (exists $self->{h}{"client-ip"}) { |
|
|
320 | $self->{remote_id} .= "[".$self->{h}{"client-ip"}."]"; |
|
|
321 | } elsif (exists $self->{h}{"x-forwarded-for"}) { |
|
|
322 | $self->{remote_id} .= "[".$self->{h}{"x-forwarded-for"}."]"; |
|
|
323 | } |
|
|
324 | |
|
|
325 | weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); |
399 | weaken (local $uri{$id}{$self->{uri}}{$self*1} = $self); |
326 | |
400 | |
327 | eval { |
401 | eval { |
328 | $self->map_uri; |
402 | $self->map_uri; |
329 | $self->respond; |
403 | $self->respond; |
330 | }; |
404 | }; |
331 | |
405 | |
332 | $self->eoconn; |
|
|
333 | |
|
|
334 | die if $@ && !ref $@; |
406 | die if $@ && !ref $@; |
335 | |
407 | |
336 | last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1; |
408 | last if $self->{h}{connection} =~ /close/i; |
|
|
409 | |
|
|
410 | $httpevent->broadcast; |
337 | |
411 | |
338 | $fh->timeout($::PER_TIMEOUT); |
412 | $fh->timeout($::PER_TIMEOUT); |
339 | } |
413 | } |
|
|
414 | } |
|
|
415 | |
|
|
416 | sub block { |
|
|
417 | my $self = shift; |
|
|
418 | |
|
|
419 | $blocked{$self->{remote_id}} = [$::NOW + $_[0], $_[1]]; |
|
|
420 | $self->slog(2, "blocked ip $self->{remote_id}"); |
|
|
421 | $self->err_blocked; |
340 | } |
422 | } |
341 | |
423 | |
342 | # uri => path mapping |
424 | # uri => path mapping |
343 | sub map_uri { |
425 | sub map_uri { |
344 | my $self = shift; |
426 | my $self = shift; |
… | |
… | |
391 | |
473 | |
392 | sub respond { |
474 | sub respond { |
393 | my $self = shift; |
475 | my $self = shift; |
394 | my $path = $self->{path}; |
476 | my $path = $self->{path}; |
395 | |
477 | |
396 | stat $path |
478 | if ($self->{name} =~ s%^/internal/([^/]+)%%) { |
397 | or $self->err(404, "not found"); |
479 | if ($::internal{$1}) { |
398 | |
480 | $::internal{$1}->($self); |
399 | $self->{stat} = [stat _]; |
|
|
400 | |
|
|
401 | # idiotic netscape sends idiotic headers AGAIN |
|
|
402 | my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ |
|
|
403 | ? str2time $1 : 0; |
|
|
404 | |
|
|
405 | if (-d _ && -r _) { |
|
|
406 | # directory |
|
|
407 | if ($path !~ /\/$/) { |
|
|
408 | # create a redirect to get the trailing "/" |
|
|
409 | # we don't try to avoid the :80 |
|
|
410 | $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" }); |
|
|
411 | } else { |
481 | } else { |
412 | $ims < $self->{stat}[9] |
482 | $self->err (404, "not found"); |
|
|
483 | } |
|
|
484 | } else { |
|
|
485 | |
|
|
486 | stat $path |
413 | or $self->err(304, "not modified"); |
487 | or $self->err (404, "not found"); |
414 | |
488 | |
415 | if (-r "$path/index.html") { |
489 | $self->{stat} = [stat _]; |
416 | $self->{path} .= "/index.html"; |
490 | |
417 | $self->handle_file; |
491 | # idiotic netscape sends idiotic headers AGAIN |
|
|
492 | my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ |
|
|
493 | ? str2time $1 : 0; |
|
|
494 | |
|
|
495 | if (-d _ && -r _) { |
|
|
496 | # directory |
|
|
497 | if ($path !~ /\/$/) { |
|
|
498 | # create a redirect to get the trailing "/" |
|
|
499 | # we don't try to avoid the :80 |
|
|
500 | $self->err (301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" }); |
418 | } else { |
501 | } else { |
|
|
502 | $ims < $self->{stat}[9] |
|
|
503 | or $self->err (304, "not modified"); |
|
|
504 | |
|
|
505 | if (-r "$path/index.html") { |
|
|
506 | # replace directory "size" by index.html filesize |
|
|
507 | $self->{stat} = [stat ($self->{path} .= "/index.html")]; |
|
|
508 | $self->handle_file ($queue_index, $tbf_top); |
|
|
509 | } else { |
419 | $self->handle_dir; |
510 | $self->handle_dir; |
420 | } |
511 | } |
421 | } |
512 | } |
422 | } elsif (-f _ && -r _) { |
513 | } elsif (-f _ && -r _) { |
423 | -x _ and $self->err(403, "forbidden"); |
514 | -x _ and $self->err (403, "forbidden"); |
424 | $self->handle_file; |
515 | |
|
|
516 | if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) { |
|
|
517 | my $timeout = $::NOW + 10; |
|
|
518 | while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) { |
|
|
519 | if ($timeout < $::NOW) { |
|
|
520 | $self->block($::BLOCKTIME, "too many connections"); |
|
|
521 | } else { |
|
|
522 | $httpevent->wait; |
|
|
523 | } |
|
|
524 | } |
|
|
525 | } |
|
|
526 | |
|
|
527 | $self->handle_file ($queue_file, $tbf_top); |
425 | } else { |
528 | } else { |
426 | $self->err(404, "not found"); |
529 | $self->err (404, "not found"); |
|
|
530 | } |
427 | } |
531 | } |
428 | } |
532 | } |
429 | |
533 | |
430 | sub handle_dir { |
534 | sub handle_dir { |
431 | my $self = shift; |
535 | my $self = shift; |
432 | my $idx = $self->diridx; |
536 | my $idx = $self->diridx; |
433 | |
537 | |
434 | $self->response(200, "ok", |
538 | $self->response (200, "ok", |
435 | { |
539 | { |
436 | "Content-Type" => "text/html", |
540 | "Content-Type" => "text/html; charset=utf-8", |
437 | "Content-Length" => length $idx, |
541 | "Content-Length" => length $idx, |
|
|
542 | "Last-Modified" => time2str ($self->{stat}[9]), |
438 | }, |
543 | }, |
439 | $idx); |
544 | $idx); |
440 | } |
545 | } |
441 | |
546 | |
442 | sub handle_file { |
547 | sub handle_file { |
443 | my $self = shift; |
548 | my ($self, $queue, $tbf) = @_; |
444 | my $length = -s _; |
549 | my $length = $self->{stat}[7]; |
445 | my $hdr = { |
550 | my $hdr = { |
446 | "Last-Modified" => time2str ((stat _)[9]), |
551 | "Last-Modified" => time2str ((stat _)[9]), |
|
|
552 | "Accept-Ranges" => "bytes", |
447 | }; |
553 | }; |
448 | |
554 | |
449 | my @code = (200, "ok"); |
555 | my @code = (200, "ok"); |
450 | my ($l, $h); |
556 | my ($l, $h); |
451 | |
557 | |
… | |
… | |
461 | } |
567 | } |
462 | goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; |
568 | goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; |
463 | } |
569 | } |
464 | $hdr->{"Content-Range"} = "bytes */$length"; |
570 | $hdr->{"Content-Range"} = "bytes */$length"; |
465 | $hdr->{"Content-Length"} = $length; |
571 | $hdr->{"Content-Length"} = $length; |
466 | $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")"); |
|
|
467 | $self->err(416, "not satisfiable", $hdr, ""); |
572 | $self->err (416, "not satisfiable", $hdr, ""); |
468 | |
573 | |
469 | satisfiable: |
574 | satisfiable: |
470 | # check for segmented downloads |
575 | # check for segmented downloads |
471 | if ($l && $::NO_SEGMENTED) { |
576 | if ($l && $::NO_SEGMENTED) { |
472 | my $delay = 60; |
577 | my $timeout = $::NOW + 15; |
473 | while (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { |
578 | while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) { |
474 | if ($delay <= 0) { |
579 | if ($timeout <= $::NOW) { |
475 | $self->err(400, "segmented downloads are not allowed", |
580 | $self->block ($::BLOCKTIME, "segmented downloads are forbidden"); |
476 | { "Content-Type" => "text/html", Connection => "close" }, <<EOF); |
581 | #$self->err_segmented_download; |
477 | <html> |
|
|
478 | <head> |
|
|
479 | <title>Segmented downloads are not allowed</title> |
|
|
480 | </head> |
|
|
481 | <body bgcolor="#ffffff" text="#000000" link="#0000ff" vlink="#000080" alink="#ff0000"> |
|
|
482 | |
|
|
483 | <p>Segmented downloads are not allowed on this server. Please refer to the |
|
|
484 | <a href="http://www.goof.com/pcg/marc/animefaq.html#segmented_downloads">FAQ</a>.</p> |
|
|
485 | |
|
|
486 | </body></html> |
|
|
487 | EOF |
|
|
488 | } else { |
582 | } else { |
489 | Coro::Event::do_timer(after => 3); $delay -= 3; |
583 | $httpevent->wait; |
490 | } |
584 | } |
491 | } |
585 | } |
492 | } |
586 | } |
493 | |
587 | |
494 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
588 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
… | |
… | |
502 | |
596 | |
503 | $self->{path} =~ /\.([^.]+)$/; |
597 | $self->{path} =~ /\.([^.]+)$/; |
504 | $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream"; |
598 | $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream"; |
505 | $hdr->{"Content-Length"} = $length; |
599 | $hdr->{"Content-Length"} = $length; |
506 | |
600 | |
507 | $self->response(@code, $hdr, ""); |
601 | $self->response (@code, $hdr, ""); |
508 | |
602 | |
509 | if ($self->{method} eq "GET") { |
603 | if ($self->{method} eq "GET") { |
510 | my ($fh, $buf, $r); |
604 | $self->{time} = $::NOW; |
511 | my $current = $Coro::current; |
605 | $self->{written} = 0; |
|
|
606 | |
512 | open $fh, "<", $self->{path} |
607 | open my $fh, "<", $self->{path} |
513 | or die "$self->{path}: late open failure ($!)"; |
608 | or die "$self->{path}: late open failure ($!)"; |
514 | |
609 | |
515 | $h -= $l - 1; |
610 | $h -= $l - 1; |
516 | |
611 | |
517 | if (0) { |
612 | my $transfer = $queue->start_transfer ($h); |
518 | if ($l) { |
613 | my $locked; |
519 | sysseek $fh, $l, 0; |
614 | my $bufsize = $::WAIT_BUFSIZE; # initial buffer size |
520 | } |
|
|
521 | } |
|
|
522 | |
615 | |
523 | while ($h > 0) { |
616 | while ($h > 0) { |
524 | if (0) { |
617 | unless ($locked) { |
525 | sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h |
618 | if ($locked ||= $transfer->try ($::WAIT_INTERVAL)) { |
|
|
619 | $bufsize = $::BUFSIZE; |
|
|
620 | $self->{time} = $::NOW; |
|
|
621 | $self->{written} = 0; |
|
|
622 | } |
|
|
623 | } |
|
|
624 | |
|
|
625 | if ($blocked{$self->{remote_id}}) { |
|
|
626 | $self->{h}{connection} = "close"; |
|
|
627 | die bless {}, err::; |
|
|
628 | } |
|
|
629 | |
|
|
630 | Coro::AIO::aio_read $fh, $l, ($h > $bufsize ? $bufsize : $h), my $buf, 0 |
526 | or last; |
631 | or last; |
527 | } else { |
632 | |
528 | undef $buf; |
633 | $tbf->request (length $buf); |
529 | $aio_requests->down; |
634 | my $w = syswrite $self->{fh}, $buf |
530 | aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h), |
|
|
531 | $buf, 0, sub { |
|
|
532 | $r = $_[0]; |
|
|
533 | $current->ready; |
|
|
534 | }); |
|
|
535 | &Coro::schedule; |
|
|
536 | $aio_requests->up; |
|
|
537 | last unless $r; |
|
|
538 | } |
|
|
539 | my $w = $self->{fh}->syswrite($buf) |
|
|
540 | or last; |
635 | or last; |
541 | $::written += $w; |
636 | $::written += $w; |
542 | $self->{written} += $w; |
637 | $self->{written} += $w; |
543 | $l += $r; |
638 | $l += $w; |
544 | } |
639 | } |
545 | } |
|
|
546 | |
640 | |
547 | close $fh; |
641 | close $fh; |
|
|
642 | } |
548 | } |
643 | } |
549 | |
644 | |
550 | 1; |
645 | 1 |
|
|
646 | |