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; |
5 | |
5 | |
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6 | use HTTP::Date; |
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7 | |
6 | no utf8; |
8 | no utf8; |
7 | use bytes; |
9 | use bytes; |
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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; |
8 | |
13 | |
9 | # at least on my machine, this thingy serves files |
14 | # at least on my machine, this thingy serves files |
10 | # quite a bit faster than apache, ;) |
15 | # quite a bit faster than apache, ;) |
11 | # and quite a bit slower than thttpd :( |
16 | # and quite a bit slower than thttpd :( |
12 | |
17 | |
13 | $SIG{PIPE} = 'IGNORE'; |
18 | $SIG{PIPE} = 'IGNORE'; |
14 | |
19 | |
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20 | our $accesslog; |
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21 | |
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22 | if ($ACCESS_LOG) { |
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23 | use IO::Handle; |
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24 | open $accesslog, ">>$ACCESS_LOG" |
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25 | or die "$ACCESS_LOG: $!"; |
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26 | $accesslog->autoflush(1); |
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27 | } |
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28 | |
15 | sub slog { |
29 | sub slog { |
16 | my $level = shift; |
30 | my $level = shift; |
17 | my $format = shift; |
31 | my $format = shift; |
18 | printf "---: $format\n", @_; |
32 | printf "---: $format\n", @_; |
19 | } |
33 | } |
20 | |
34 | |
21 | my $connections = new Coro::Semaphore $MAX_CONNECTS; |
35 | our $connections = new Coro::Semaphore $MAX_CONNECTS || 250; |
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36 | our $transfers = new Coro::Semaphore $MAX_TRANSFER || 50; |
22 | |
37 | |
23 | my @newcons; |
38 | my @newcons; |
24 | my @pool; |
39 | my @pool; |
25 | |
40 | |
26 | # one "execution thread" |
41 | # one "execution thread" |
… | |
… | |
48 | Listen => 50, |
63 | Listen => 50, |
49 | or die "unable to start server"; |
64 | or die "unable to start server"; |
50 | |
65 | |
51 | push @listen_sockets, $http_port; |
66 | push @listen_sockets, $http_port; |
52 | |
67 | |
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68 | our $NOW; |
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69 | our $HTTP_NOW; |
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70 | |
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71 | Event->timer(interval => 1, hard => 1, cb => sub { |
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72 | $NOW = time; |
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73 | $HTTP_NOW = time2str $NOW; |
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74 | }); |
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75 | |
53 | # the "main thread" |
76 | # the "main thread" |
54 | async { |
77 | async { |
55 | slog 1, "accepting connections"; |
78 | slog 1, "accepting connections"; |
56 | while () { |
79 | while () { |
57 | $connections->down; |
80 | $connections->down; |
58 | push @newcons, [$http_port->accept]; |
81 | push @newcons, [$http_port->accept]; |
59 | #slog 3, "accepted @$connections ".scalar(@pool); |
82 | #slog 3, "accepted @$connections ".scalar(@pool); |
60 | $::NOW = time; |
|
|
61 | if (@pool) { |
83 | if (@pool) { |
62 | (pop @pool)->ready; |
84 | (pop @pool)->ready; |
63 | } else { |
85 | } else { |
64 | async \&handler; |
86 | async \&handler; |
65 | } |
87 | } |
… | |
… | |
74 | use Convert::Scalar 'weaken'; |
96 | use Convert::Scalar 'weaken'; |
75 | use Linux::AIO; |
97 | use Linux::AIO; |
76 | |
98 | |
77 | Linux::AIO::min_parallel $::AIO_PARALLEL; |
99 | Linux::AIO::min_parallel $::AIO_PARALLEL; |
78 | |
100 | |
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101 | my $aio_requests = new Coro::Semaphore $::AIO_PARALLEL * 4; |
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102 | |
79 | Event->io(fd => Linux::AIO::poll_fileno, |
103 | Event->io(fd => Linux::AIO::poll_fileno, |
80 | poll => 'r', async => 1, |
104 | poll => 'r', async => 1, |
81 | cb => \&Linux::AIO::poll_cb); |
105 | cb => \&Linux::AIO::poll_cb); |
82 | |
106 | |
83 | our %conn; # $conn{ip}{fh} => connobj |
107 | our %conn; # $conn{ip}{self} => connobj |
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108 | our %uri; # $uri{ip}{uri}{self} |
84 | our %blocked; |
109 | our %blocked; |
85 | our %mimetype; |
110 | our %mimetype; |
86 | |
111 | |
87 | sub read_mimetypes { |
112 | sub read_mimetypes { |
88 | local *M; |
113 | local *M; |
… | |
… | |
127 | delete $conn{$self->{remote_addr}}{$self*1}; |
152 | delete $conn{$self->{remote_addr}}{$self*1}; |
128 | } |
153 | } |
129 | |
154 | |
130 | # end of connection |
155 | # end of connection |
131 | sub eoconn { |
156 | sub eoconn { |
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157 | my $self = shift; |
132 | delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1}; |
158 | delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1}; |
133 | } |
159 | } |
134 | |
160 | |
135 | sub slog { |
161 | sub slog { |
136 | my $self = shift; |
162 | my $self = shift; |
137 | main::slog($_[0], "$self->{remote_addr}> $_[1]"); |
163 | main::slog($_[0], ($self->{remote_id} || $self->{remote_addr}) ."> $_[1]"); |
138 | } |
164 | } |
139 | |
165 | |
140 | sub response { |
166 | sub response { |
141 | my ($self, $code, $msg, $hdr, $content) = @_; |
167 | my ($self, $code, $msg, $hdr, $content) = @_; |
142 | my $res = "HTTP/1.1 $code $msg\015\012"; |
168 | my $res = "HTTP/1.1 $code $msg\015\012"; |
143 | |
169 | |
144 | #$res .= "Connection: close\015\012"; |
170 | $self->{h}{connection} ||= $hdr->{Connection}; |
145 | $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( |
171 | |
|
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172 | $res .= "Date: $HTTP_NOW\015\012"; |
146 | |
173 | |
147 | while (my ($h, $v) = each %$hdr) { |
174 | while (my ($h, $v) = each %$hdr) { |
148 | $res .= "$h: $v\015\012" |
175 | $res .= "$h: $v\015\012" |
149 | } |
176 | } |
150 | $res .= "\015\012"; |
177 | $res .= "\015\012"; |
151 | |
178 | |
152 | $res .= $content if defined $content and $self->{method} ne "HEAD"; |
179 | $res .= $content if defined $content and $self->{method} ne "HEAD"; |
153 | |
180 | |
154 | print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d# |
181 | my $log = "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n"; |
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182 | |
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183 | print $accesslog $log if $accesslog; |
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184 | print STDERR $log; |
155 | |
185 | |
156 | $self->{written} += |
186 | $self->{written} += |
157 | print {$self->{fh}} $res; |
187 | print {$self->{fh}} $res; |
158 | } |
188 | } |
159 | |
189 | |
… | |
… | |
171 | $self->response($code, $msg, $hdr, $content); |
201 | $self->response($code, $msg, $hdr, $content); |
172 | |
202 | |
173 | die bless {}, err::; |
203 | die bless {}, err::; |
174 | } |
204 | } |
175 | |
205 | |
176 | sub err_blocked { |
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177 | my $self = shift; |
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178 | my $ip = $self->{remote_addr}; |
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179 | my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME; |
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180 | |
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181 | Coro::Event::do_timer(after => 20*rand); |
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182 | |
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183 | $self->err(401, "too many connections", |
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184 | { |
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185 | "Content-Type" => "text/html", |
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186 | "Retry-After" => $::BLOCKTIME, |
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187 | "Warning" => "Please do NOT retry, you have been blocked", |
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188 | "WWW-Authenticate" => "Basic realm=\"Please do NOT retry, you have been blocked\"", |
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189 | }, |
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190 | <<EOF); |
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191 | <html><p> |
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192 | You have been blocked because you opened too many connections. You |
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193 | may retry at</p> |
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194 | |
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195 | <p><blockquote>$time.</blockquote></p> |
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196 | |
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197 | <p>Until then, each new access will renew the block. You might want to have a |
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198 | look at the <a href="http://www.goof.com/pcg/marc/animefaq.html">FAQ</a>.</p> |
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199 | </html> |
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200 | EOF |
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201 | } |
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202 | |
|
|
203 | sub handle { |
206 | sub handle { |
204 | my $self = shift; |
207 | my $self = shift; |
205 | my $fh = $self->{fh}; |
208 | my $fh = $self->{fh}; |
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209 | |
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210 | my $host; |
206 | |
211 | |
207 | $fh->timeout($::REQ_TIMEOUT); |
212 | $fh->timeout($::REQ_TIMEOUT); |
208 | while() { |
213 | while() { |
209 | $self->{reqs}++; |
214 | $self->{reqs}++; |
210 | |
215 | |
… | |
… | |
230 | |
235 | |
231 | delete $blocked{$ip}; |
236 | delete $blocked{$ip}; |
232 | } |
237 | } |
233 | |
238 | |
234 | if (%{$conn{$ip}} > $::MAX_CONN_IP) { |
239 | if (%{$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) { |
235 | $self->slog(2, "blocked ip $ip"); |
243 | $self->slog(2, "blocked ip $ip"); |
236 | $self->err_blocked; |
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 | } |
237 | } |
250 | } |
238 | |
251 | |
239 | $req =~ /^(?:\015\012)? |
252 | $req =~ /^(?:\015\012)? |
240 | (GET|HEAD) \040+ |
253 | (GET|HEAD) \040+ |
241 | ([^\040]+) \040+ |
254 | ([^\040]+) \040+ |
… | |
… | |
267 | |
280 | |
268 | $self->{h}{$h} = substr $v, 1 |
281 | $self->{h}{$h} = substr $v, 1 |
269 | while ($h, $v) = each %hdr; |
282 | while ($h, $v) = each %hdr; |
270 | } |
283 | } |
271 | |
284 | |
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285 | # find out server name and port |
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286 | if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) { |
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287 | $host = $1; |
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288 | } else { |
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289 | $host = $self->{h}{host}; |
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290 | } |
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291 | |
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292 | if (defined $host) { |
272 | $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; |
293 | $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80; |
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294 | } else { |
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295 | ($self->{server_port}, $host) |
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296 | = unpack_sockaddr_in $self->{fh}->getsockname |
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297 | or $self->err(500, "unable to get socket name"); |
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298 | $host = inet_ntoa $host; |
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299 | } |
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300 | |
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301 | $self->{server_name} = $host; |
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302 | |
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303 | # remote id should be unique per user |
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304 | $self->{remote_id} = $self->{remote_addr}; |
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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 | } |
273 | |
311 | |
274 | weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); |
312 | weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); |
275 | |
313 | |
276 | eval { |
314 | eval { |
277 | $self->map_uri; |
315 | $self->map_uri; |
278 | $self->respond; |
316 | $self->respond; |
279 | }; |
317 | }; |
280 | |
318 | |
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319 | $self->eoconn; |
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320 | |
281 | die if $@ && !ref $@; |
321 | die if $@ && !ref $@; |
282 | |
322 | |
283 | $self->eoconn; |
|
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284 | |
|
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285 | last if $self->{h}{connection} =~ /close/ || $self->{version} lt "1.1"; |
323 | last if $self->{h}{connection} =~ /close/ || $self->{version} < 1.1; |
286 | |
324 | |
287 | $self->slog(9, "persistent connection [".$self->{h}{"user-agent"}."][$self->{reqs}]"); |
|
|
288 | $fh->timeout($::PER_TIMEOUT); |
325 | $fh->timeout($::PER_TIMEOUT); |
289 | } |
326 | } |
290 | } |
327 | } |
291 | |
328 | |
292 | # uri => path mapping |
329 | # uri => path mapping |
293 | sub map_uri { |
330 | sub map_uri { |
294 | my $self = shift; |
331 | my $self = shift; |
295 | my $host = $self->{h}{host} || "default"; |
332 | my $host = $self->{server_name}; |
296 | my $uri = $self->{uri}; |
333 | my $uri = $self->{uri}; |
297 | |
334 | |
298 | # some massaging, also makes it more secure |
335 | # some massaging, also makes it more secure |
299 | $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; |
336 | $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; |
300 | $uri =~ s%//+%/%g; |
337 | $uri =~ s%//+%/%g; |
… | |
… | |
310 | $self->{path} = "$::DOCROOT/$host$uri"; |
347 | $self->{path} = "$::DOCROOT/$host$uri"; |
311 | |
348 | |
312 | $self->access_check; |
349 | $self->access_check; |
313 | } |
350 | } |
314 | |
351 | |
315 | sub server_address { |
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316 | my $self = shift; |
|
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317 | my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname |
|
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318 | or $self->err(500, "unable to get socket name"); |
|
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319 | ((inet_ntoa $iaddr), $port); |
|
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320 | } |
|
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321 | |
|
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322 | sub server_host { |
|
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323 | my $self = shift; |
|
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324 | if (exists $self->{h}{host}) { |
|
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325 | return $self->{h}{host}; |
|
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326 | } else { |
|
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327 | return (($self->server_address)[0]); |
|
|
328 | } |
|
|
329 | } |
|
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330 | |
|
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331 | sub server_hostport { |
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332 | my $self = shift; |
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333 | my ($host, $port); |
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334 | if (exists $self->{h}{host}) { |
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335 | ($host, $port) = ($self->{h}{host}, $self->{server_port}); |
|
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336 | } else { |
|
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337 | ($host, $port) = $self->server_address; |
|
|
338 | } |
|
|
339 | $port = $port == 80 ? "" : ":$port"; |
|
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340 | $host.$port; |
|
|
341 | } |
|
|
342 | |
|
|
343 | sub _cgi { |
352 | sub _cgi { |
344 | my $self = shift; |
353 | my $self = shift; |
345 | my $path = shift; |
354 | my $path = shift; |
346 | my $fh; |
355 | my $fh; |
347 | |
356 | |
348 | # no two-way xxx supported |
357 | # no two-way xxx supported |
349 | if (0 == fork) { |
358 | if (0 == fork) { |
350 | open STDOUT, ">&".fileno($self->{fh}); |
359 | open STDOUT, ">&".fileno($self->{fh}); |
351 | if (chdir $::DOCROOT) { |
360 | if (chdir $::DOCROOT) { |
352 | $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike |
361 | $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike |
353 | $ENV{HTTP_HOST} = $self->server_host; |
362 | $ENV{HTTP_HOST} = $self->{server_name}; |
354 | $ENV{HTTP_PORT} = $self->{server_host}; |
363 | $ENV{HTTP_PORT} = $self->{server_port}; |
355 | $ENV{SCRIPT_NAME} = $self->{name}; |
364 | $ENV{SCRIPT_NAME} = $self->{name}; |
356 | exec $path; |
365 | exec $path; |
357 | } |
366 | } |
358 | Coro::State::_exit(0); |
367 | Coro::State::_exit(0); |
359 | } else { |
368 | } else { |
|
|
369 | die; |
360 | } |
370 | } |
|
|
371 | } |
|
|
372 | |
|
|
373 | sub server_hostport { |
|
|
374 | $_[0]{server_port} == 80 |
|
|
375 | ? $_[0]{server_name} |
|
|
376 | : "$_[0]{server_name}:$_[0]{server_port}"; |
361 | } |
377 | } |
362 | |
378 | |
363 | sub respond { |
379 | sub respond { |
364 | my $self = shift; |
380 | my $self = shift; |
365 | my $path = $self->{path}; |
381 | my $path = $self->{path}; |
… | |
… | |
375 | |
391 | |
376 | if (-d _ && -r _) { |
392 | if (-d _ && -r _) { |
377 | # directory |
393 | # directory |
378 | if ($path !~ /\/$/) { |
394 | if ($path !~ /\/$/) { |
379 | # create a redirect to get the trailing "/" |
395 | # create a redirect to get the trailing "/" |
380 | my $host = $self->server_hostport; |
396 | # we don't try to avoid the :80 |
381 | $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); |
397 | $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" }); |
382 | } else { |
398 | } else { |
383 | $ims < $self->{stat}[9] |
399 | $ims < $self->{stat}[9] |
384 | or $self->err(304, "not modified"); |
400 | or $self->err(304, "not modified"); |
385 | |
401 | |
386 | if ($self->{method} eq "GET") { |
|
|
387 | if (-r "$path/index.html") { |
402 | if (-r "$path/index.html") { |
388 | $self->{path} .= "/index.html"; |
403 | $self->{path} .= "/index.html"; |
389 | $self->handle_file; |
404 | $self->handle_file; |
390 | } else { |
405 | } else { |
391 | $self->handle_dir; |
406 | $self->handle_dir; |
392 | } |
|
|
393 | } |
407 | } |
394 | } |
408 | } |
395 | } elsif (-f _ && -r _) { |
409 | } elsif (-f _ && -r _) { |
396 | -x _ and $self->err(403, "forbidden"); |
410 | -x _ and $self->err(403, "forbidden"); |
397 | $self->handle_file; |
411 | $self->handle_file; |
… | |
… | |
430 | ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); |
444 | ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); |
431 | } else { |
445 | } else { |
432 | ($l, $h) = (0, $length - 1); |
446 | ($l, $h) = (0, $length - 1); |
433 | goto ignore; |
447 | goto ignore; |
434 | } |
448 | } |
435 | goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; |
449 | goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; |
436 | } |
450 | } |
437 | $hdr->{"Content-Range"} = "bytes */$length"; |
451 | $hdr->{"Content-Range"} = "bytes */$length"; |
438 | $hdr->{"Content-Length"} = $length; |
452 | $hdr->{"Content-Length"} = $length; |
439 | $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")"); |
453 | $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")"); |
440 | $self->err(416, "not satisfiable", $hdr, ""); |
454 | $self->err(416, "not satisfiable", $hdr, ""); |
441 | |
455 | |
442 | satisfiable: |
456 | satisfiable: |
443 | # check for segmented downloads |
457 | # check for segmented downloads |
444 | if ($l && $::NO_SEGMENTED) { |
458 | if ($l && $::NO_SEGMENTED) { |
|
|
459 | my $delay = 180; |
445 | if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { |
460 | while (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { |
|
|
461 | if ($delay <= 0) { |
|
|
462 | $self->err_segmented_download; |
|
|
463 | } else { |
446 | Coro::Event::do_timer(after => 15); |
464 | Coro::Event::do_timer(after => 3); $delay -= 3; |
447 | |
465 | } |
448 | $self->err(400, "segmented downloads are not allowed"); |
|
|
449 | } |
466 | } |
450 | } |
467 | } |
451 | |
468 | |
452 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
469 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
453 | @code = (206, "partial content"); |
470 | @code = (206, "partial content"); |
… | |
… | |
463 | $hdr->{"Content-Length"} = $length; |
480 | $hdr->{"Content-Length"} = $length; |
464 | |
481 | |
465 | $self->response(@code, $hdr, ""); |
482 | $self->response(@code, $hdr, ""); |
466 | |
483 | |
467 | if ($self->{method} eq "GET") { |
484 | if ($self->{method} eq "GET") { |
|
|
485 | $self->{time} = $::NOW; |
|
|
486 | |
|
|
487 | my $transfer = $::transfers->guard; |
|
|
488 | $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} = $::NOW; |
|
|
493 | |
468 | my ($fh, $buf, $r); |
494 | my ($fh, $buf, $r); |
469 | my $current = $Coro::current; |
495 | my $current = $Coro::current; |
470 | open $fh, "<", $self->{path} |
496 | open $fh, "<", $self->{path} |
471 | or die "$self->{path}: late open failure ($!)"; |
497 | or die "$self->{path}: late open failure ($!)"; |
472 | |
498 | |
… | |
… | |
481 | while ($h > 0) { |
507 | while ($h > 0) { |
482 | if (0) { |
508 | if (0) { |
483 | sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h |
509 | sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h |
484 | or last; |
510 | or last; |
485 | } else { |
511 | } else { |
|
|
512 | undef $buf; |
|
|
513 | $aio_requests->down; |
486 | aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h), |
514 | aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h), |
487 | $buf, 0, sub { |
515 | $buf, 0, sub { |
488 | $r = $_[0]; |
516 | $r = $_[0]; |
489 | $current->ready; |
517 | $current->ready; |
490 | }); |
518 | }); |
491 | &Coro::schedule; |
519 | &Coro::schedule; |
|
|
520 | $aio_requests->up; |
492 | last unless $r; |
521 | last unless $r; |
493 | } |
522 | } |
494 | my $w = $self->{fh}->syswrite($buf) |
523 | my $w = $self->{fh}->syswrite($buf) |
495 | or last; |
524 | or last; |
496 | $::written += $w; |
525 | $::written += $w; |
497 | $self->{written} += $w; |
526 | $self->{written} += $w; |
498 | $l += $r; |
527 | $l += $r; |
499 | } |
528 | } |
500 | } |
|
|
501 | |
529 | |
502 | close $fh; |
530 | close $fh; |
|
|
531 | } |
503 | } |
532 | } |
504 | |
533 | |
505 | 1; |
534 | 1; |