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; |
5 | |
6 | |
6 | use HTTP::Date; |
7 | use HTTP::Date; |
7 | |
8 | |
8 | no utf8; |
9 | no utf8; |
9 | use bytes; |
10 | use bytes; |
10 | |
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11 | our @wait_time = (); # used to calculcate avg. waiting time |
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12 | our $wait_time_length = 25; |
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13 | |
11 | |
14 | # at least on my machine, this thingy serves files |
12 | # at least on my machine, this thingy serves files |
15 | # quite a bit faster than apache, ;) |
13 | # quite a bit faster than apache, ;) |
16 | # and quite a bit slower than thttpd :( |
14 | # and quite a bit slower than thttpd :( |
17 | |
15 | |
… | |
… | |
31 | my $format = shift; |
29 | my $format = shift; |
32 | printf "---: $format\n", @_; |
30 | printf "---: $format\n", @_; |
33 | } |
31 | } |
34 | |
32 | |
35 | our $connections = new Coro::Semaphore $MAX_CONNECTS || 250; |
33 | our $connections = new Coro::Semaphore $MAX_CONNECTS || 250; |
36 | our $transfers = new Coro::Semaphore $MAX_TRANSFER || 50; |
34 | our $httpevent = new Coro::Signal; |
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35 | |
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36 | our $wait_factor = 0.95; |
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37 | |
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38 | our @transfers = ( |
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39 | [(new Coro::Semaphore $MAX_TRANSFERS_SMALL || 50), 1], |
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40 | [(new Coro::Semaphore $MAX_TRANSFERS_LARGE || 50), 1], |
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41 | ); |
37 | |
42 | |
38 | my @newcons; |
43 | my @newcons; |
39 | my @pool; |
44 | my @pool; |
40 | |
45 | |
41 | # one "execution thread" |
46 | # one "execution thread" |
42 | sub handler { |
47 | sub handler { |
43 | while () { |
48 | while () { |
44 | my $new = pop @newcons; |
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45 | if ($new) { |
49 | if (@newcons) { |
46 | eval { |
50 | eval { |
47 | conn->new(@$new)->handle; |
51 | conn->new(@{pop @newcons})->handle; |
48 | }; |
52 | }; |
49 | slog 1, "$@" if $@ && !ref $@; |
53 | slog 1, "$@" if $@ && !ref $@; |
50 | $connections->up; |
54 | $connections->up; |
51 | } else { |
55 | } else { |
52 | last if @pool >= $MAX_POOL; |
56 | last if @pool >= $MAX_POOL; |
… | |
… | |
54 | schedule; |
58 | schedule; |
55 | } |
59 | } |
56 | } |
60 | } |
57 | } |
61 | } |
58 | |
62 | |
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63 | sub listen_on { |
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64 | my $listen = $_[0]; |
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65 | |
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66 | push @listen_sockets, $listen; |
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67 | |
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68 | # the "main thread" |
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69 | async { |
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70 | slog 1, "accepting connections"; |
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71 | while () { |
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72 | $connections->down; |
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73 | push @newcons, [$listen->accept]; |
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74 | #slog 3, "accepted @$connections ".scalar(@pool); |
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75 | if (@pool) { |
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76 | (pop @pool)->ready; |
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77 | } else { |
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78 | async \&handler; |
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79 | } |
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80 | |
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81 | } |
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82 | }; |
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83 | } |
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84 | |
59 | my $http_port = new Coro::Socket |
85 | my $http_port = new Coro::Socket |
60 | LocalAddr => $SERVER_HOST, |
86 | LocalAddr => $SERVER_HOST, |
61 | LocalPort => $SERVER_PORT, |
87 | LocalPort => $SERVER_PORT, |
62 | ReuseAddr => 1, |
88 | ReuseAddr => 1, |
63 | Listen => 50, |
89 | Listen => 50, |
64 | or die "unable to start server"; |
90 | or die "unable to start server"; |
65 | |
91 | |
66 | push @listen_sockets, $http_port; |
92 | listen_on $http_port; |
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93 | |
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94 | if ($SERVER_PORT2) { |
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95 | my $http_port = new Coro::Socket |
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96 | LocalAddr => $SERVER_HOST, |
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97 | LocalPort => $SERVER_PORT2, |
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98 | ReuseAddr => 1, |
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99 | Listen => 50, |
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100 | or die "unable to start server"; |
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101 | |
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102 | listen_on $http_port; |
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103 | } |
67 | |
104 | |
68 | our $NOW; |
105 | our $NOW; |
69 | our $HTTP_NOW; |
106 | our $HTTP_NOW; |
70 | |
107 | |
71 | Event->timer(interval => 1, hard => 1, cb => sub { |
108 | Event->timer(interval => 1, hard => 1, cb => sub { |
72 | $NOW = time; |
109 | $NOW = time; |
73 | $HTTP_NOW = time2str $NOW; |
110 | $HTTP_NOW = time2str $NOW; |
74 | }); |
111 | })->now; |
75 | |
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76 | # the "main thread" |
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77 | async { |
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78 | slog 1, "accepting connections"; |
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79 | while () { |
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80 | $connections->down; |
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81 | push @newcons, [$http_port->accept]; |
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82 | #slog 3, "accepted @$connections ".scalar(@pool); |
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83 | if (@pool) { |
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84 | (pop @pool)->ready; |
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85 | } else { |
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86 | async \&handler; |
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87 | } |
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88 | |
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89 | } |
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90 | }; |
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91 | |
112 | |
92 | package conn; |
113 | package conn; |
93 | |
114 | |
94 | use Socket; |
115 | use Socket; |
95 | use HTTP::Date; |
116 | use HTTP::Date; |
96 | use Convert::Scalar 'weaken'; |
117 | use Convert::Scalar 'weaken'; |
97 | use Linux::AIO; |
118 | use Linux::AIO; |
98 | |
119 | |
99 | Linux::AIO::min_parallel $::AIO_PARALLEL; |
120 | Linux::AIO::min_parallel $::AIO_PARALLEL; |
100 | |
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101 | my $aio_requests = new Coro::Semaphore $::AIO_PARALLEL * 4; |
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102 | |
121 | |
103 | Event->io(fd => Linux::AIO::poll_fileno, |
122 | Event->io(fd => Linux::AIO::poll_fileno, |
104 | poll => 'r', async => 1, |
123 | poll => 'r', async => 1, |
105 | cb => \&Linux::AIO::poll_cb); |
124 | cb => \&Linux::AIO::poll_cb); |
106 | |
125 | |
… | |
… | |
124 | |
143 | |
125 | read_mimetypes; |
144 | read_mimetypes; |
126 | |
145 | |
127 | sub new { |
146 | sub new { |
128 | my $class = shift; |
147 | my $class = shift; |
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148 | my $fh = shift; |
129 | my $peername = shift; |
149 | my $peername = shift; |
130 | my $fh = shift; |
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131 | my $self = bless { fh => $fh }, $class; |
150 | my $self = bless { fh => $fh }, $class; |
132 | my (undef, $iaddr) = unpack_sockaddr_in $peername |
151 | my (undef, $iaddr) = unpack_sockaddr_in $peername |
133 | or $self->err(500, "unable to decode peername"); |
152 | or $self->err(500, "unable to decode peername"); |
134 | |
153 | |
135 | $self->{remote_addr} = inet_ntoa $iaddr; |
154 | $self->{remote_addr} = inet_ntoa $iaddr; |
136 | $self->{time} = $::NOW; |
155 | $self->{time} = $::NOW; |
137 | |
156 | |
138 | # enter ourselves into various lists |
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139 | weaken ($conn{$self->{remote_addr}}{$self*1} = $self); |
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140 | |
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141 | $::conns++; |
157 | $::conns++; |
142 | |
158 | |
143 | $self; |
159 | $self; |
144 | } |
160 | } |
145 | |
161 | |
146 | sub DESTROY { |
162 | sub DESTROY { |
147 | my $self = shift; |
163 | my $self = shift; |
148 | |
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149 | $::conns--; |
164 | $::conns--; |
150 | |
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151 | $self->eoconn; |
165 | $self->eoconn; |
152 | delete $conn{$self->{remote_addr}}{$self*1}; |
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153 | } |
166 | } |
154 | |
167 | |
155 | # end of connection |
168 | # end of connection |
156 | sub eoconn { |
169 | sub eoconn { |
157 | my $self = shift; |
170 | my $self = shift; |
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171 | |
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172 | # clean up hints |
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173 | delete $conn{$self->{remote_id}}{$self*1}; |
158 | delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1}; |
174 | delete $uri{$self->{remote_id}}{$self->{uri}}{$self*1}; |
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175 | |
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176 | $httpevent->broadcast; |
159 | } |
177 | } |
160 | |
178 | |
161 | sub slog { |
179 | sub slog { |
162 | my $self = shift; |
180 | my $self = shift; |
163 | main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]"); |
181 | main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]"); |
… | |
… | |
165 | |
183 | |
166 | sub response { |
184 | sub response { |
167 | my ($self, $code, $msg, $hdr, $content) = @_; |
185 | my ($self, $code, $msg, $hdr, $content) = @_; |
168 | my $res = "HTTP/1.1 $code $msg\015\012"; |
186 | my $res = "HTTP/1.1 $code $msg\015\012"; |
169 | |
187 | |
170 | $self->{h}{connection} ||= $hdr->{Connection}; |
188 | if (exists $hdr->{Connection}) { |
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189 | if ($hdr->{Connection} =~ /close/) { |
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190 | $self->{h}{connection} = "close" |
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191 | } |
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192 | } else { |
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193 | if ($self->{version} < 1.1) { |
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194 | if ($self->{h}{connection} =~ /keep-alive/i) { |
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195 | $hdr->{Connection} = "Keep-Alive"; |
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196 | } else { |
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197 | $self->{h}{connection} = "close" |
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198 | } |
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199 | } |
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200 | } |
171 | |
201 | |
172 | $res .= "Date: $HTTP_NOW\015\012"; |
202 | $res .= "Date: $HTTP_NOW\015\012"; |
173 | |
203 | |
174 | while (my ($h, $v) = each %$hdr) { |
204 | while (my ($h, $v) = each %$hdr) { |
175 | $res .= "$h: $v\015\012" |
205 | $res .= "$h: $v\015\012" |
… | |
… | |
190 | sub err { |
220 | sub err { |
191 | my $self = shift; |
221 | my $self = shift; |
192 | my ($code, $msg, $hdr, $content) = @_; |
222 | my ($code, $msg, $hdr, $content) = @_; |
193 | |
223 | |
194 | unless (defined $content) { |
224 | unless (defined $content) { |
195 | $content = "$code $msg"; |
225 | $content = "$code $msg\n"; |
196 | $hdr->{"Content-Type"} = "text/plain"; |
226 | $hdr->{"Content-Type"} = "text/plain"; |
197 | $hdr->{"Content-Length"} = length $content; |
227 | $hdr->{"Content-Length"} = length $content; |
198 | } |
228 | } |
199 | $hdr->{"Connection"} = "close"; |
229 | $hdr->{"Connection"} = "close"; |
200 | |
230 | |
… | |
… | |
225 | } |
255 | } |
226 | |
256 | |
227 | $self->{h} = {}; |
257 | $self->{h} = {}; |
228 | |
258 | |
229 | $fh->timeout($::RES_TIMEOUT); |
259 | $fh->timeout($::RES_TIMEOUT); |
230 | my $ip = $self->{remote_addr}; |
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231 | |
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232 | if ($blocked{$ip}) { |
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233 | $self->err_blocked($blocked{$ip}) |
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234 | if $blocked{$ip} > $::NOW; |
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235 | |
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236 | delete $blocked{$ip}; |
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237 | } |
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238 | |
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239 | if (%{$conn{$ip}} > $::MAX_CONN_IP) { |
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240 | my $delay = 120; |
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241 | while (%{$conn{$ip}} > $::MAX_CONN_IP) { |
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242 | if ($delay <= 0) { |
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243 | $self->slog(2, "blocked ip $ip"); |
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244 | $self->err_blocked; |
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245 | } else { |
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246 | Coro::Event::do_timer(after => 3); |
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247 | $delay -= 3; |
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248 | } |
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249 | } |
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250 | } |
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251 | |
260 | |
252 | $req =~ /^(?:\015\012)? |
261 | $req =~ /^(?:\015\012)? |
253 | (GET|HEAD) \040+ |
262 | (GET|HEAD) \040+ |
254 | ([^\040]+) \040+ |
263 | ([^\040]+) \040+ |
255 | HTTP\/([0-9]+\.[0-9]+) |
264 | HTTP\/([0-9]+\.[0-9]+) |
… | |
… | |
280 | |
289 | |
281 | $self->{h}{$h} = substr $v, 1 |
290 | $self->{h}{$h} = substr $v, 1 |
282 | while ($h, $v) = each %hdr; |
291 | while ($h, $v) = each %hdr; |
283 | } |
292 | } |
284 | |
293 | |
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294 | # remote id should be unique per user |
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295 | my $id = $self->{remote_addr}; |
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296 | |
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297 | if (exists $self->{h}{"client-ip"}) { |
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298 | $id .= "[".$self->{h}{"client-ip"}."]"; |
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299 | } elsif (exists $self->{h}{"x-forwarded-for"}) { |
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300 | $id .= "[".$self->{h}{"x-forwarded-for"}."]"; |
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301 | } |
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302 | |
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303 | $self->{remote_id} = $id; |
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304 | |
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305 | if ($blocked{$id}) { |
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306 | $self->err_blocked($blocked{$id}) |
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307 | if $blocked{$id} > $::NOW; |
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308 | |
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309 | delete $blocked{$id}; |
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310 | } |
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311 | |
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312 | if (%{$conn{$id}} >= $::MAX_CONN_IP) { |
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313 | my $delay = $::PER_TIMEOUT + $::NOW + 15; |
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314 | while (%{$conn{$id}} >= $::MAX_CONN_IP) { |
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315 | if ($delay < $::NOW) { |
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316 | $self->slog(2, "blocked ip $id"); |
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317 | $self->err_blocked; |
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318 | } else { |
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319 | $httpevent->wait; |
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320 | } |
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321 | } |
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322 | } |
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323 | |
285 | # find out server name and port |
324 | # find out server name and port |
286 | if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) { |
325 | if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) { |
287 | $host = $1; |
326 | $host = $1; |
288 | } else { |
327 | } else { |
289 | $host = $self->{h}{host}; |
328 | $host = $self->{h}{host}; |
… | |
… | |
291 | |
330 | |
292 | if (defined $host) { |
331 | if (defined $host) { |
293 | $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80; |
332 | $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80; |
294 | } else { |
333 | } else { |
295 | ($self->{server_port}, $host) |
334 | ($self->{server_port}, $host) |
296 | = unpack_sockaddr_in $self->{fh}->getsockname |
335 | = unpack_sockaddr_in $self->{fh}->sockname |
297 | or $self->err(500, "unable to get socket name"); |
336 | or $self->err(500, "unable to get socket name"); |
298 | $host = inet_ntoa $host; |
337 | $host = inet_ntoa $host; |
299 | } |
338 | } |
300 | |
339 | |
301 | $self->{server_name} = $host; |
340 | $self->{server_name} = $host; |
302 | |
341 | |
303 | # remote id should be unique per user |
342 | # enter ourselves into various lists |
304 | $self->{remote_id} = $self->{remote_addr}; |
343 | weaken ($conn{$id}{$self*1} = $self); |
305 | |
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306 | if (exists $self->{h}{"client-ip"}) { |
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307 | $self->{remote_id} .= "[".$self->{h}{"client-ip"}."]"; |
|
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308 | } elsif (exists $self->{h}{"x-forwarded-for"}) { |
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309 | $self->{remote_id} .= "[".$self->{h}{"x-forwarded-for"}."]"; |
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310 | } |
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311 | |
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312 | weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); |
344 | weaken ($uri{$id}{$self->{uri}}{$self*1} = $self); |
313 | |
345 | |
314 | eval { |
346 | eval { |
315 | $self->map_uri; |
347 | $self->map_uri; |
316 | $self->respond; |
348 | $self->respond; |
317 | }; |
349 | }; |
318 | |
350 | |
319 | $self->eoconn; |
351 | $self->eoconn; |
320 | |
352 | |
321 | die if $@ && !ref $@; |
353 | die if $@ && !ref $@; |
322 | |
354 | |
323 | last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1; |
355 | last if $self->{h}{connection} =~ /close/; |
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356 | |
|
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357 | $httpevent->broadcast; |
324 | |
358 | |
325 | $fh->timeout($::PER_TIMEOUT); |
359 | $fh->timeout($::PER_TIMEOUT); |
326 | } |
360 | } |
327 | } |
361 | } |
328 | |
362 | |
… | |
… | |
398 | } else { |
432 | } else { |
399 | $ims < $self->{stat}[9] |
433 | $ims < $self->{stat}[9] |
400 | or $self->err(304, "not modified"); |
434 | or $self->err(304, "not modified"); |
401 | |
435 | |
402 | if (-r "$path/index.html") { |
436 | if (-r "$path/index.html") { |
403 | $self->{path} .= "/index.html"; |
437 | # replace directory "size" by index.html filesize |
|
|
438 | $self->{stat}[7] = (stat ($self->{path} .= "/index.html"))[7]; |
404 | $self->handle_file; |
439 | $self->handle_file; |
405 | } else { |
440 | } else { |
406 | $self->handle_dir; |
441 | $self->handle_dir; |
407 | } |
442 | } |
408 | } |
443 | } |
… | |
… | |
426 | $idx); |
461 | $idx); |
427 | } |
462 | } |
428 | |
463 | |
429 | sub handle_file { |
464 | sub handle_file { |
430 | my $self = shift; |
465 | my $self = shift; |
431 | my $length = -s _; |
466 | my $length = $self->{stat}[7]; |
|
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467 | my $queue = $::transfers[$length >= $::TRANSFER_SMALL]; |
432 | my $hdr = { |
468 | my $hdr = { |
433 | "Last-Modified" => time2str ((stat _)[9]), |
469 | "Last-Modified" => time2str ((stat _)[9]), |
434 | }; |
470 | }; |
435 | |
471 | |
436 | my @code = (200, "ok"); |
472 | my @code = (200, "ok"); |
… | |
… | |
448 | } |
484 | } |
449 | goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; |
485 | goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; |
450 | } |
486 | } |
451 | $hdr->{"Content-Range"} = "bytes */$length"; |
487 | $hdr->{"Content-Range"} = "bytes */$length"; |
452 | $hdr->{"Content-Length"} = $length; |
488 | $hdr->{"Content-Length"} = $length; |
453 | $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")"); |
|
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454 | $self->err(416, "not satisfiable", $hdr, ""); |
489 | $self->err(416, "not satisfiable", $hdr, ""); |
455 | |
490 | |
456 | satisfiable: |
491 | satisfiable: |
457 | # check for segmented downloads |
492 | # check for segmented downloads |
458 | if ($l && $::NO_SEGMENTED) { |
493 | if ($l && $::NO_SEGMENTED) { |
459 | my $delay = 180; |
494 | my $delay = $::NOW + $::PER_TIMEOUT + 15; |
460 | while (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { |
495 | while (%{$uri{$self->{remote_id}}{$self->{uri}}} > 1) { |
461 | if ($delay <= 0) { |
496 | if ($delay <= $::NOW) { |
462 | $self->err_segmented_download; |
497 | $self->err_segmented_download; |
463 | } else { |
498 | } else { |
464 | Coro::Event::do_timer(after => 3); $delay -= 3; |
499 | $httpevent->wait; |
465 | } |
500 | } |
466 | } |
501 | } |
467 | } |
502 | } |
468 | |
503 | |
469 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
504 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
… | |
… | |
482 | $self->response(@code, $hdr, ""); |
517 | $self->response(@code, $hdr, ""); |
483 | |
518 | |
484 | if ($self->{method} eq "GET") { |
519 | if ($self->{method} eq "GET") { |
485 | $self->{time} = $::NOW; |
520 | $self->{time} = $::NOW; |
486 | |
521 | |
|
|
522 | my $fudge = $queue->[0]->waiters; |
|
|
523 | $fudge = $fudge ? ($fudge+1)/$fudge : 1; |
|
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524 | |
|
|
525 | $queue->[1] *= $fudge; |
487 | my $transfer = $::transfers->guard; |
526 | my $transfer = $queue->[0]->guard; |
|
|
527 | |
|
|
528 | if ($fudge != 1) { |
|
|
529 | $queue->[1] /= $fudge; |
|
|
530 | $queue->[1] = $queue->[1] * $::wait_factor |
|
|
531 | + ($::NOW - $self->{time}) * (1 - $::wait_factor); |
|
|
532 | } |
|
|
533 | $self->{time} = $::NOW; |
|
|
534 | |
488 | $self->{fh}->writable or return; |
535 | $self->{fh}->writable or return; |
489 | |
|
|
490 | push @::wait_time, $::NOW - $self->{time}; |
|
|
491 | shift @::wait_time if @wait_time > $wait_time_length; |
|
|
492 | $self->{time} = $::NOW; |
|
|
493 | |
536 | |
494 | my ($fh, $buf, $r); |
537 | my ($fh, $buf, $r); |
495 | my $current = $Coro::current; |
538 | my $current = $Coro::current; |
496 | open $fh, "<", $self->{path} |
539 | open $fh, "<", $self->{path} |
497 | or die "$self->{path}: late open failure ($!)"; |
540 | or die "$self->{path}: late open failure ($!)"; |
… | |
… | |
507 | while ($h > 0) { |
550 | while ($h > 0) { |
508 | if (0) { |
551 | if (0) { |
509 | sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h |
552 | sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h |
510 | or last; |
553 | or last; |
511 | } else { |
554 | } else { |
512 | undef $buf; |
|
|
513 | $aio_requests->down; |
|
|
514 | aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h), |
555 | aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h), |
515 | $buf, 0, sub { |
556 | $buf, 0, sub { |
516 | $r = $_[0]; |
557 | $r = $_[0]; |
517 | $current->ready; |
558 | Coro::ready($current); |
518 | }); |
559 | }); |
519 | &Coro::schedule; |
560 | &Coro::schedule; |
520 | $aio_requests->up; |
|
|
521 | last unless $r; |
561 | last unless $r; |
522 | } |
562 | } |
523 | my $w = $self->{fh}->syswrite($buf) |
563 | my $w = syswrite $self->{fh}, $buf |
524 | or last; |
564 | or last; |
525 | $::written += $w; |
565 | $::written += $w; |
526 | $self->{written} += $w; |
566 | $self->{written} += $w; |
527 | $l += $r; |
567 | $l += $r; |
528 | } |
568 | } |