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 | use Coro::Signal; |
|
|
6 | |
|
|
7 | use HTTP::Date; |
|
|
8 | use POSIX (); |
|
|
9 | |
|
|
10 | use Compress::Zlib (); |
5 | |
11 | |
6 | no utf8; |
12 | no utf8; |
7 | use bytes; |
13 | use bytes; |
8 | |
14 | |
9 | # at least on my machine, this thingy serves files |
15 | # at least on my machine, this thingy serves files |
10 | # quite a bit faster than apache, ;) |
16 | # quite a bit faster than apache, ;) |
11 | # and quite a bit slower than thttpd :( |
17 | # and quite a bit slower than thttpd :( |
12 | |
18 | |
13 | $SIG{PIPE} = 'IGNORE'; |
19 | $SIG{PIPE} = 'IGNORE'; |
14 | |
20 | |
|
|
21 | our $accesslog; |
|
|
22 | our $errorlog; |
|
|
23 | |
|
|
24 | our $NOW; |
|
|
25 | our $HTTP_NOW; |
|
|
26 | |
|
|
27 | Event->timer(interval => 1, hard => 1, cb => sub { |
|
|
28 | $NOW = time; |
|
|
29 | $HTTP_NOW = time2str $NOW; |
|
|
30 | })->now; |
|
|
31 | |
|
|
32 | if ($ERROR_LOG) { |
|
|
33 | use IO::Handle; |
|
|
34 | open $errorlog, ">>$ERROR_LOG" |
|
|
35 | or die "$ERROR_LOG: $!"; |
|
|
36 | $errorlog->autoflush(1); |
|
|
37 | } |
|
|
38 | |
|
|
39 | if ($ACCESS_LOG) { |
|
|
40 | use IO::Handle; |
|
|
41 | open $accesslog, ">>$ACCESS_LOG" |
|
|
42 | or die "$ACCESS_LOG: $!"; |
|
|
43 | $accesslog->autoflush(1); |
|
|
44 | } |
|
|
45 | |
15 | sub slog { |
46 | sub slog { |
16 | my $level = shift; |
47 | my $level = shift; |
17 | my $format = shift; |
48 | my $format = shift; |
|
|
49 | my $NOW = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW); |
18 | printf "---: $format\n", @_; |
50 | printf "$NOW: $format\n", @_; |
|
|
51 | printf $errorlog "$NOW: $format\n", @_ if $errorlog; |
19 | } |
52 | } |
20 | |
53 | |
21 | my $connections = new Coro::Semaphore $MAX_CONNECTS; |
54 | our $connections = new Coro::Semaphore $MAX_CONNECTS || 250; |
|
|
55 | our $httpevent = new Coro::Signal; |
|
|
56 | |
|
|
57 | our $queue_file = new transferqueue $MAX_TRANSFERS; |
|
|
58 | our $queue_index = new transferqueue 10; |
|
|
59 | |
|
|
60 | our $tbf_top = new tbf rate => $TBF_RATE || 100000; |
|
|
61 | |
|
|
62 | my $unused_bytes = 0; |
|
|
63 | my $unused_last = time; |
|
|
64 | |
|
|
65 | sub unused_bandwidth { |
|
|
66 | $unused_bytes += $_[0]; |
|
|
67 | if ($unused_last < $NOW - 30 && $unused_bytes / ($NOW - $unused_last) > 50000) { |
|
|
68 | $unused_last = $NOW; |
|
|
69 | $unused_bytes = 0; |
|
|
70 | $queue_file->force_wake_next; |
|
|
71 | slog 1, "forced filetransfer due to unused bandwidth"; |
|
|
72 | } |
|
|
73 | } |
22 | |
74 | |
23 | my @newcons; |
75 | my @newcons; |
24 | my @pool; |
76 | my @pool; |
25 | |
77 | |
26 | # one "execution thread" |
78 | # one "execution thread" |
27 | sub handler { |
79 | sub handler { |
28 | while () { |
80 | while () { |
29 | my $new = pop @newcons; |
|
|
30 | if ($new) { |
81 | if (@newcons) { |
31 | eval { |
82 | eval { |
32 | conn->new(@$new)->handle; |
83 | conn->new(@{pop @newcons})->handle; |
33 | }; |
84 | }; |
34 | slog 1, "$@" if $@ && !ref $@; |
85 | slog 1, "$@" if $@ && !ref $@; |
|
|
86 | |
|
|
87 | $httpevent->broadcast; # only for testing, but doesn't matter much |
|
|
88 | |
35 | $connections->up; |
89 | $connections->up; |
36 | } else { |
90 | } else { |
37 | last if @pool >= $MAX_POOL; |
91 | last if @pool >= $MAX_POOL; |
38 | push @pool, $Coro::current; |
92 | push @pool, $Coro::current; |
39 | schedule; |
93 | schedule; |
40 | } |
94 | } |
41 | } |
95 | } |
|
|
96 | } |
|
|
97 | |
|
|
98 | sub listen_on { |
|
|
99 | my $listen = $_[0]; |
|
|
100 | |
|
|
101 | push @listen_sockets, $listen; |
|
|
102 | |
|
|
103 | # the "main thread" |
|
|
104 | async { |
|
|
105 | slog 1, "accepting connections"; |
|
|
106 | while () { |
|
|
107 | $connections->down; |
|
|
108 | push @newcons, [$listen->accept]; |
|
|
109 | #slog 3, "accepted @$connections ".scalar(@pool); |
|
|
110 | if (@pool) { |
|
|
111 | (pop @pool)->ready; |
|
|
112 | } else { |
|
|
113 | async \&handler; |
|
|
114 | } |
|
|
115 | } |
|
|
116 | }; |
42 | } |
117 | } |
43 | |
118 | |
44 | my $http_port = new Coro::Socket |
119 | my $http_port = new Coro::Socket |
45 | LocalAddr => $SERVER_HOST, |
120 | LocalAddr => $SERVER_HOST, |
46 | LocalPort => $SERVER_PORT, |
121 | LocalPort => $SERVER_PORT, |
47 | ReuseAddr => 1, |
122 | ReuseAddr => 1, |
48 | Listen => 50, |
123 | Listen => 50, |
49 | or die "unable to start server"; |
124 | or die "unable to start server"; |
50 | |
125 | |
51 | push @listen_sockets, $http_port; |
126 | listen_on $http_port; |
52 | |
127 | |
53 | # the "main thread" |
128 | if ($SERVER_PORT2) { |
54 | async { |
129 | my $http_port = new Coro::Socket |
55 | slog 1, "accepting connections"; |
130 | LocalAddr => $SERVER_HOST, |
56 | while () { |
131 | LocalPort => $SERVER_PORT2, |
57 | $connections->down; |
132 | ReuseAddr => 1, |
58 | push @newcons, [$http_port->accept]; |
133 | Listen => 50, |
59 | #slog 3, "accepted @$connections ".scalar(@pool); |
134 | or die "unable to start server"; |
60 | $::NOW = time; |
|
|
61 | if (@pool) { |
|
|
62 | (pop @pool)->ready; |
|
|
63 | } else { |
|
|
64 | async \&handler; |
|
|
65 | } |
|
|
66 | |
135 | |
67 | } |
136 | listen_on $http_port; |
68 | }; |
137 | } |
69 | |
138 | |
70 | package conn; |
139 | package conn; |
71 | |
140 | |
72 | use Socket; |
141 | use Socket; |
73 | use HTTP::Date; |
142 | use HTTP::Date; |
74 | use Convert::Scalar 'weaken'; |
143 | use Convert::Scalar 'weaken'; |
|
|
144 | use IO::AIO; |
75 | |
145 | |
|
|
146 | IO::AIO::min_parallel $::AIO_PARALLEL; |
|
|
147 | |
|
|
148 | Event->io(fd => IO::AIO::poll_fileno, |
|
|
149 | poll => 'r', async => 1, |
|
|
150 | cb => \&IO::AIO::poll_cb); |
|
|
151 | |
76 | our %conn; # $conn{ip}{fh} => connobj |
152 | our %conn; # $conn{ip}{self} => connobj |
|
|
153 | our %uri; # $uri{ip}{uri}{self} |
77 | our %blocked; |
154 | our %blocked; |
78 | our %mimetype; |
155 | our %mimetype; |
79 | |
156 | |
80 | sub read_mimetypes { |
157 | sub read_mimetypes { |
81 | local *M; |
158 | local *M; |
… | |
… | |
92 | |
169 | |
93 | read_mimetypes; |
170 | read_mimetypes; |
94 | |
171 | |
95 | sub new { |
172 | sub new { |
96 | my $class = shift; |
173 | my $class = shift; |
|
|
174 | my $fh = shift; |
97 | my $peername = shift; |
175 | my $peername = shift; |
98 | my $fh = shift; |
|
|
99 | my $self = bless { fh => $fh }, $class; |
176 | my $self = bless { fh => $fh }, $class; |
100 | my (undef, $iaddr) = unpack_sockaddr_in $peername |
177 | my (undef, $iaddr) = unpack_sockaddr_in $peername |
101 | or $self->err(500, "unable to decode peername"); |
178 | or $self->err(500, "unable to decode peername"); |
102 | |
179 | |
|
|
180 | $self->{remote_addr} = |
103 | $self->{remote_addr} = inet_ntoa $iaddr; |
181 | $self->{remote_id} = inet_ntoa $iaddr; |
|
|
182 | |
104 | $self->{time} = $::NOW; |
183 | $self->{time} = $::NOW; |
105 | |
184 | |
106 | # enter ourselves into various lists |
185 | weaken ($Coro::current->{conn} = $self); |
107 | weaken ($conn{$self->{remote_addr}}{$self*1} = $self); |
|
|
108 | |
186 | |
109 | $::conns++; |
187 | $::conns++; |
|
|
188 | $::maxconns = $::conns if $::conns > $::maxconns; |
110 | |
189 | |
111 | $self; |
190 | $self; |
112 | } |
191 | } |
113 | |
192 | |
114 | sub DESTROY { |
193 | sub DESTROY { |
115 | my $self = shift; |
194 | #my $self = shift; |
116 | |
|
|
117 | $::conns--; |
195 | $::conns--; |
118 | |
|
|
119 | delete $conn{$self->{remote_addr}}{$self*1}; |
|
|
120 | delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1}; |
|
|
121 | } |
196 | } |
|
|
197 | |
|
|
198 | sub prune_cache { |
|
|
199 | my $hash = $_[0]; |
|
|
200 | |
|
|
201 | for (keys %$hash) { |
|
|
202 | if (ref $hash->{$_} eq HASH::) { |
|
|
203 | prune_cache($hash->{$_}); |
|
|
204 | unless (scalar keys %{$hash->{$_}}) { |
|
|
205 | delete $hash->{$_}; |
|
|
206 | $d2++; |
|
|
207 | } |
|
|
208 | } |
|
|
209 | } |
|
|
210 | } |
|
|
211 | |
|
|
212 | sub prune_caches { |
|
|
213 | prune_cache \%conn; |
|
|
214 | prune_cache \%uri; |
|
|
215 | |
|
|
216 | for (keys %blocked) { |
|
|
217 | delete $blocked{$_} unless $blocked{$_}[0] > $::NOW; |
|
|
218 | } |
|
|
219 | } |
|
|
220 | |
|
|
221 | Event->timer(interval => 60, cb => \&prune_caches); |
122 | |
222 | |
123 | sub slog { |
223 | sub slog { |
124 | my $self = shift; |
224 | my $self = shift; |
125 | main::slog($_[0], "$self->{remote_addr}> $_[1]"); |
225 | main::slog($_[0], "$self->{remote_id}> $_[1]"); |
126 | } |
226 | } |
127 | |
227 | |
128 | sub response { |
228 | sub response { |
129 | my ($self, $code, $msg, $hdr, $content) = @_; |
229 | my ($self, $code, $msg, $hdr, $content) = @_; |
130 | my $res = "HTTP/1.0 $code $msg\015\012"; |
230 | my $res = "HTTP/1.1 $code $msg\015\012"; |
|
|
231 | my $GZ = ""; |
131 | |
232 | |
132 | $res .= "Connection: close\015\012"; |
233 | if (exists $hdr->{Connection}) { |
133 | $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( |
234 | if ($hdr->{Connection} =~ /close/) { |
|
|
235 | $self->{h}{connection} = "close" |
|
|
236 | } |
|
|
237 | } else { |
|
|
238 | if ($self->{version} < 1.1) { |
|
|
239 | if ($self->{h}{connection} =~ /keep-alive/i) { |
|
|
240 | $hdr->{Connection} = "Keep-Alive"; |
|
|
241 | } else { |
|
|
242 | $self->{h}{connection} = "close" |
|
|
243 | } |
|
|
244 | } |
|
|
245 | } |
|
|
246 | |
|
|
247 | if ($self->{method} ne "HEAD" |
|
|
248 | && $self->{h}{"accept-encoding"} =~ /\bgzip\b/ |
|
|
249 | && 400 < length $content |
|
|
250 | && $hdr->{"Content-Length"} == length $content |
|
|
251 | && !exists $hdr->{"Content-Encoding"} |
|
|
252 | ) { |
|
|
253 | my $orig = length $content; |
|
|
254 | $hdr->{"Content-Encoding"} = "gzip"; |
|
|
255 | $content = Compress::Zlib::memGzip(\$content); |
|
|
256 | $hdr->{"Content-Length"} = length $content; |
|
|
257 | $GZ = sprintf "GZ%02d", 100 - 100*((length $content) / $orig); |
|
|
258 | } |
|
|
259 | |
|
|
260 | $res .= "Date: $HTTP_NOW\015\012"; |
|
|
261 | $res .= "Server: $::NAME\015\012"; |
134 | |
262 | |
135 | while (my ($h, $v) = each %$hdr) { |
263 | while (my ($h, $v) = each %$hdr) { |
136 | $res .= "$h: $v\015\012" |
264 | $res .= "$h: $v\015\012" |
137 | } |
265 | } |
138 | $res .= "\015\012"; |
266 | $res .= "\015\012"; |
139 | |
267 | |
140 | $res .= $content if defined $content and $self->{method} ne "HEAD"; |
268 | $res .= $content if defined $content and $self->{method} ne "HEAD"; |
141 | |
269 | |
142 | print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d# |
270 | my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW). |
|
|
271 | " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}.$GZ. |
|
|
272 | " \"$self->{h}{referer}\"\n"; |
143 | |
273 | |
144 | $self->{written} += |
274 | print $::accesslog $log if $::accesslog; |
145 | print {$self->{fh}} $res; |
275 | print STDERR $log; |
|
|
276 | |
|
|
277 | $tbf_top->request(length $res, 1e6); |
|
|
278 | $self->{written} += print {$self->{fh}} $res; |
146 | } |
279 | } |
147 | |
280 | |
148 | sub err { |
281 | sub err { |
149 | my $self = shift; |
282 | my $self = shift; |
150 | my ($code, $msg, $hdr, $content) = @_; |
283 | my ($code, $msg, $hdr, $content) = @_; |
151 | |
284 | |
152 | unless (defined $content) { |
285 | unless (defined $content) { |
153 | $content = "$code $msg"; |
286 | $content = "$code $msg\n"; |
154 | $hdr->{"Content-Type"} = "text/plain"; |
287 | $hdr->{"Content-Type"} = "text/plain"; |
155 | $hdr->{"Content-Length"} = length $content; |
288 | $hdr->{"Content-Length"} = length $content; |
156 | } |
289 | } |
|
|
290 | $hdr->{"Connection"} = "close"; |
157 | |
291 | |
158 | $self->response($code, $msg, $hdr, $content); |
292 | $self->response($code, $msg, $hdr, $content); |
159 | |
293 | |
160 | die bless {}, err::; |
294 | die bless {}, err::; |
161 | } |
295 | } |
162 | |
296 | |
163 | sub err_blocked { |
|
|
164 | my $self = shift; |
|
|
165 | my $ip = $self->{remote_addr}; |
|
|
166 | my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME; |
|
|
167 | |
|
|
168 | Coro::Event::do_timer(after => 15); |
|
|
169 | |
|
|
170 | $self->err(401, "too many connections", |
|
|
171 | { |
|
|
172 | "Content-Type" => "text/html", |
|
|
173 | "Retry-After" => $::BLOCKTIME |
|
|
174 | }, |
|
|
175 | <<EOF); |
|
|
176 | <html><p> |
|
|
177 | You have been blocked because you opened too many connections. You |
|
|
178 | may retry at</p> |
|
|
179 | |
|
|
180 | <p><blockquote>$time.</blockquote></p> |
|
|
181 | |
|
|
182 | <p>Until then, each new access will renew the block. You might want to have a |
|
|
183 | look at the <a href="http://www.goof.com/pcg/marc/animefaq.html">FAQ</a>.</p> |
|
|
184 | </html> |
|
|
185 | EOF |
|
|
186 | } |
|
|
187 | |
|
|
188 | sub handle { |
297 | sub handle { |
189 | my $self = shift; |
298 | my $self = shift; |
190 | my $fh = $self->{fh}; |
299 | my $fh = $self->{fh}; |
191 | |
300 | |
|
|
301 | my $host; |
|
|
302 | |
|
|
303 | $fh->timeout($::REQ_TIMEOUT); |
192 | #while() { |
304 | while() { |
|
|
305 | $self->{reqs}++; |
|
|
306 | |
|
|
307 | # read request and parse first line |
|
|
308 | my $req = $fh->readline("\015\012\015\012"); |
|
|
309 | |
|
|
310 | unless (defined $req) { |
|
|
311 | if (exists $self->{version}) { |
|
|
312 | last; |
|
|
313 | } else { |
|
|
314 | $self->err(408, "request timeout"); |
|
|
315 | } |
|
|
316 | } |
|
|
317 | |
193 | $self->{h} = {}; |
318 | $self->{h} = {}; |
194 | |
319 | |
195 | # read request and parse first line |
|
|
196 | $fh->timeout($::REQ_TIMEOUT); |
|
|
197 | my $req = $fh->readline("\015\012\015\012"); |
|
|
198 | $fh->timeout($::RES_TIMEOUT); |
320 | $fh->timeout($::RES_TIMEOUT); |
199 | |
|
|
200 | defined $req or |
|
|
201 | $self->err(408, "request timeout"); |
|
|
202 | |
|
|
203 | my $ip = $self->{remote_addr}; |
|
|
204 | |
|
|
205 | $self->err_blocked($blocked{$ip}); |
|
|
206 | if ($blocked{$ip}) { |
|
|
207 | $self->err_blocked($blocked{$ip}) |
|
|
208 | if $blocked{$ip} > $::NOW; |
|
|
209 | |
|
|
210 | delete $blocked{$ip}; |
|
|
211 | } |
|
|
212 | |
|
|
213 | if (%{$conn{$ip}} > $::MAX_CONN_IP) { |
|
|
214 | $self->slog(2, "blocked ip $ip"); |
|
|
215 | $self->err_blocked; |
|
|
216 | } |
|
|
217 | |
321 | |
218 | $req =~ /^(?:\015\012)? |
322 | $req =~ /^(?:\015\012)? |
219 | (GET|HEAD) \040+ |
323 | (GET|HEAD) \040+ |
220 | ([^\040]+) \040+ |
324 | ([^\040]+) \040+ |
221 | HTTP\/([0-9]+\.[0-9]+) |
325 | HTTP\/([0-9]+\.[0-9]+) |
222 | \015\012/gx |
326 | \015\012/gx |
223 | or $self->err(405, "method not allowed", { Allow => "GET,HEAD" }); |
327 | or $self->err(405, "method not allowed", { Allow => "GET,HEAD" }); |
224 | |
328 | |
225 | $2 ne "1.0" |
|
|
226 | or $self->err(506, "http protocol version not supported"); |
|
|
227 | |
|
|
228 | $self->{method} = $1; |
329 | $self->{method} = $1; |
229 | $self->{uri} = $2; |
330 | $self->{uri} = $2; |
|
|
331 | $self->{version} = $3; |
|
|
332 | |
|
|
333 | $3 =~ /^1\./ |
|
|
334 | or $self->err(506, "http protocol version $3 not supported"); |
230 | |
335 | |
231 | # parse headers |
336 | # parse headers |
232 | { |
337 | { |
233 | my (%hdr, $h, $v); |
338 | my (%hdr, $h, $v); |
234 | |
339 | |
235 | $hdr{lc $1} .= ",$2" |
340 | $hdr{lc $1} .= ",$2" |
236 | while $req =~ /\G |
341 | while $req =~ /\G |
237 | ([^:\000-\040]+): |
342 | ([^:\000-\040]+): |
238 | [\008\040]* |
343 | [\011\040]* |
239 | ((?: [^\015\012]+ | \015\012[\008\040] )*) |
344 | ((?: [^\015\012]+ | \015\012[\011\040] )*) |
240 | \015\012 |
345 | \015\012 |
241 | /gxc; |
346 | /gxc; |
242 | |
347 | |
243 | $req =~ /\G\015\012$/ |
348 | $req =~ /\G\015\012$/ |
244 | or $self->err(400, "bad request"); |
349 | or $self->err(400, "bad request"); |
245 | |
350 | |
246 | $self->{h}{$h} = substr $v, 1 |
351 | $self->{h}{$h} = substr $v, 1 |
247 | while ($h, $v) = each %hdr; |
352 | while ($h, $v) = each %hdr; |
248 | } |
353 | } |
249 | |
354 | |
|
|
355 | # remote id should be unique per user |
|
|
356 | my $id = $self->{remote_addr}; |
|
|
357 | |
|
|
358 | if (exists $self->{h}{"client-ip"}) { |
|
|
359 | $id .= "[".$self->{h}{"client-ip"}."]"; |
|
|
360 | } elsif (exists $self->{h}{"x-forwarded-for"}) { |
|
|
361 | $id .= "[".$self->{h}{"x-forwarded-for"}."]"; |
|
|
362 | } |
|
|
363 | |
|
|
364 | $self->{remote_id} = $id; |
|
|
365 | |
|
|
366 | weaken (local $conn{$id}{$self*1} = $self); |
|
|
367 | |
|
|
368 | if ($blocked{$id}) { |
|
|
369 | $self->err_blocked |
|
|
370 | if $blocked{$id}[0] > $::NOW; |
|
|
371 | |
|
|
372 | delete $blocked{$id}; |
|
|
373 | } |
|
|
374 | |
|
|
375 | # find out server name and port |
|
|
376 | if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) { |
|
|
377 | $host = $1; |
|
|
378 | } else { |
|
|
379 | $host = $self->{h}{host}; |
|
|
380 | } |
|
|
381 | |
|
|
382 | if (defined $host) { |
250 | $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; |
383 | $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80; |
|
|
384 | } else { |
|
|
385 | ($self->{server_port}, $host) |
|
|
386 | = unpack_sockaddr_in $self->{fh}->sockname |
|
|
387 | or $self->err(500, "unable to get socket name"); |
|
|
388 | $host = inet_ntoa $host; |
|
|
389 | } |
251 | |
390 | |
|
|
391 | $self->{server_name} = $host; |
|
|
392 | |
252 | weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); |
393 | weaken (local $uri{$id}{$self->{uri}}{$self*1} = $self); |
253 | |
394 | |
|
|
395 | eval { |
254 | $self->map_uri; |
396 | $self->map_uri; |
255 | $self->respond; |
397 | $self->respond; |
|
|
398 | }; |
|
|
399 | |
|
|
400 | die if $@ && !ref $@; |
|
|
401 | |
|
|
402 | last if $self->{h}{connection} =~ /close/i; |
|
|
403 | |
|
|
404 | $httpevent->broadcast; |
|
|
405 | |
|
|
406 | $fh->timeout($::PER_TIMEOUT); |
256 | #} |
407 | } |
|
|
408 | } |
|
|
409 | |
|
|
410 | sub block { |
|
|
411 | my $self = shift; |
|
|
412 | |
|
|
413 | $blocked{$self->{remote_id}} = [$::NOW + $_[0], $_[1]]; |
|
|
414 | $self->slog(2, "blocked ip $self->{remote_id}"); |
|
|
415 | $self->err_blocked; |
257 | } |
416 | } |
258 | |
417 | |
259 | # uri => path mapping |
418 | # uri => path mapping |
260 | sub map_uri { |
419 | sub map_uri { |
261 | my $self = shift; |
420 | my $self = shift; |
262 | my $host = $self->{h}{host} || "default"; |
421 | my $host = $self->{server_name}; |
263 | my $uri = $self->{uri}; |
422 | my $uri = $self->{uri}; |
264 | |
423 | |
265 | # some massaging, also makes it more secure |
424 | # some massaging, also makes it more secure |
266 | $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; |
425 | $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; |
267 | $uri =~ s%//+%/%g; |
426 | $uri =~ s%//+%/%g; |
… | |
… | |
277 | $self->{path} = "$::DOCROOT/$host$uri"; |
436 | $self->{path} = "$::DOCROOT/$host$uri"; |
278 | |
437 | |
279 | $self->access_check; |
438 | $self->access_check; |
280 | } |
439 | } |
281 | |
440 | |
282 | sub server_address { |
|
|
283 | my $self = shift; |
|
|
284 | my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname |
|
|
285 | or $self->err(500, "unable to get socket name"); |
|
|
286 | ((inet_ntoa $iaddr), $port); |
|
|
287 | } |
|
|
288 | |
|
|
289 | sub server_host { |
|
|
290 | my $self = shift; |
|
|
291 | if (exists $self->{h}{host}) { |
|
|
292 | return $self->{h}{host}; |
|
|
293 | } else { |
|
|
294 | return (($self->server_address)[0]); |
|
|
295 | } |
|
|
296 | } |
|
|
297 | |
|
|
298 | sub server_hostport { |
|
|
299 | my $self = shift; |
|
|
300 | my ($host, $port); |
|
|
301 | if (exists $self->{h}{host}) { |
|
|
302 | ($host, $port) = ($self->{h}{host}, $self->{server_port}); |
|
|
303 | } else { |
|
|
304 | ($host, $port) = $self->server_address; |
|
|
305 | } |
|
|
306 | $port = $port == 80 ? "" : ":$port"; |
|
|
307 | $host.$port; |
|
|
308 | } |
|
|
309 | |
|
|
310 | sub _cgi { |
441 | sub _cgi { |
311 | my $self = shift; |
442 | my $self = shift; |
312 | my $path = shift; |
443 | my $path = shift; |
313 | my $fh; |
444 | my $fh; |
314 | |
445 | |
315 | # no two-way xxx supported |
446 | # no two-way xxx supported |
316 | if (0 == fork) { |
447 | if (0 == fork) { |
317 | open STDOUT, ">&".fileno($self->{fh}); |
448 | open STDOUT, ">&".fileno($self->{fh}); |
318 | if (chdir $::DOCROOT) { |
449 | if (chdir $::DOCROOT) { |
319 | $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike |
450 | $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike |
320 | $ENV{HTTP_HOST} = $self->server_host; |
451 | $ENV{HTTP_HOST} = $self->{server_name}; |
321 | $ENV{HTTP_PORT} = $self->{server_host}; |
452 | $ENV{HTTP_PORT} = $self->{server_port}; |
322 | $ENV{SCRIPT_NAME} = $self->{name}; |
453 | $ENV{SCRIPT_NAME} = $self->{name}; |
323 | exec $path; |
454 | exec $path; |
324 | } |
455 | } |
325 | Coro::State::_exit(0); |
456 | Coro::State::_exit(0); |
326 | } else { |
457 | } else { |
|
|
458 | die; |
327 | } |
459 | } |
|
|
460 | } |
|
|
461 | |
|
|
462 | sub server_hostport { |
|
|
463 | $_[0]{server_port} == 80 |
|
|
464 | ? $_[0]{server_name} |
|
|
465 | : "$_[0]{server_name}:$_[0]{server_port}"; |
328 | } |
466 | } |
329 | |
467 | |
330 | sub respond { |
468 | sub respond { |
331 | my $self = shift; |
469 | my $self = shift; |
332 | my $path = $self->{path}; |
470 | my $path = $self->{path}; |
333 | |
471 | |
334 | stat $path |
472 | if ($self->{name} =~ s%^/internal/([^/]+)%%) { |
335 | or $self->err(404, "not found"); |
473 | if ($::internal{$1}) { |
336 | |
474 | $::internal{$1}->($self); |
337 | $self->{stat} = [stat _]; |
|
|
338 | |
|
|
339 | # idiotic netscape sends idiotic headers AGAIN |
|
|
340 | my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ |
|
|
341 | ? str2time $1 : 0; |
|
|
342 | |
|
|
343 | if (-d _ && -r _) { |
|
|
344 | # directory |
|
|
345 | if ($path !~ /\/$/) { |
|
|
346 | # create a redirect to get the trailing "/" |
|
|
347 | my $host = $self->server_hostport; |
|
|
348 | $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); |
|
|
349 | } else { |
475 | } else { |
|
|
476 | $self->err(404, "not found"); |
|
|
477 | } |
|
|
478 | } else { |
|
|
479 | |
|
|
480 | stat $path |
|
|
481 | or $self->err(404, "not found"); |
|
|
482 | |
|
|
483 | $self->{stat} = [stat _]; |
|
|
484 | |
|
|
485 | # idiotic netscape sends idiotic headers AGAIN |
|
|
486 | my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ |
|
|
487 | ? str2time $1 : 0; |
|
|
488 | |
|
|
489 | if (-d _ && -r _) { |
|
|
490 | # directory |
|
|
491 | if ($path !~ /\/$/) { |
|
|
492 | # create a redirect to get the trailing "/" |
|
|
493 | # we don't try to avoid the :80 |
|
|
494 | $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" }); |
|
|
495 | } else { |
350 | $ims < $self->{stat}[9] |
496 | $ims < $self->{stat}[9] |
351 | or $self->err(304, "not modified"); |
497 | or $self->err(304, "not modified"); |
352 | |
498 | |
353 | if ($self->{method} eq "GET") { |
|
|
354 | if (-r "$path/index.html") { |
499 | if (-r "$path/index.html") { |
|
|
500 | # replace directory "size" by index.html filesize |
355 | $self->{path} .= "/index.html"; |
501 | $self->{stat} = [stat ($self->{path} .= "/index.html")]; |
356 | $self->handle_file; |
502 | $self->handle_file($queue_index, $tbf_top); |
357 | } else { |
503 | } else { |
358 | $self->handle_dir; |
504 | $self->handle_dir; |
359 | } |
505 | } |
360 | } |
506 | } |
361 | } |
|
|
362 | } elsif (-f _ && -r _) { |
507 | } elsif (-f _ && -r _) { |
363 | -x _ and $self->err(403, "forbidden"); |
508 | -x _ and $self->err(403, "forbidden"); |
364 | $self->handle_file; |
509 | |
|
|
510 | if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) { |
|
|
511 | my $timeout = $::NOW + 10; |
|
|
512 | while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) { |
|
|
513 | if ($timeout < $::NOW) { |
|
|
514 | $self->block($::BLOCKTIME, "too many connections"); |
|
|
515 | } else { |
|
|
516 | $httpevent->wait; |
|
|
517 | } |
|
|
518 | } |
|
|
519 | } |
|
|
520 | |
|
|
521 | $self->handle_file($queue_file, $tbf_top); |
365 | } else { |
522 | } else { |
366 | $self->err(404, "not found"); |
523 | $self->err(404, "not found"); |
|
|
524 | } |
367 | } |
525 | } |
368 | } |
526 | } |
369 | |
527 | |
370 | sub handle_dir { |
528 | sub handle_dir { |
371 | my $self = shift; |
529 | my $self = shift; |
372 | my $idx = $self->diridx; |
530 | my $idx = $self->diridx; |
373 | |
531 | |
374 | $self->response(200, "ok", |
532 | $self->response(200, "ok", |
375 | { |
533 | { |
376 | "Content-Type" => "text/html", |
534 | "Content-Type" => "text/html; charset=utf-8", |
377 | "Content-Length" => length $idx, |
535 | "Content-Length" => length $idx, |
|
|
536 | "Last-Modified" => time2str ($self->{stat}[9]), |
378 | }, |
537 | }, |
379 | $idx); |
538 | $idx); |
380 | } |
539 | } |
381 | |
540 | |
382 | sub handle_file { |
541 | sub handle_file { |
383 | my $self = shift; |
542 | my ($self, $queue, $tbf) = @_; |
384 | my $length = -s _; |
543 | my $length = $self->{stat}[7]; |
385 | my $hdr = { |
544 | my $hdr = { |
386 | "Last-Modified" => time2str ((stat _)[9]), |
545 | "Last-Modified" => time2str ((stat _)[9]), |
|
|
546 | "Accept-Ranges" => "bytes", |
387 | }; |
547 | }; |
388 | |
548 | |
389 | my @code = (200, "ok"); |
549 | my @code = (200, "ok"); |
390 | my ($l, $h); |
550 | my ($l, $h); |
391 | |
551 | |
… | |
… | |
397 | ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); |
557 | ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); |
398 | } else { |
558 | } else { |
399 | ($l, $h) = (0, $length - 1); |
559 | ($l, $h) = (0, $length - 1); |
400 | goto ignore; |
560 | goto ignore; |
401 | } |
561 | } |
402 | goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; |
562 | goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; |
403 | } |
563 | } |
404 | $hdr->{"Content-Range"} = "bytes */$length"; |
564 | $hdr->{"Content-Range"} = "bytes */$length"; |
|
|
565 | $hdr->{"Content-Length"} = $length; |
405 | $self->err(416, "not satisfiable", $hdr); |
566 | $self->err(416, "not satisfiable", $hdr, ""); |
406 | |
567 | |
407 | satisfiable: |
568 | satisfiable: |
408 | # check for segmented downloads |
569 | # check for segmented downloads |
409 | if ($l && $::NO_SEGMENTED) { |
570 | if ($l && $::NO_SEGMENTED) { |
|
|
571 | my $timeout = $::NOW + 15; |
410 | if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { |
572 | while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) { |
411 | Coro::Event::do_timer(after => 15); |
573 | if ($timeout <= $::NOW) { |
412 | |
574 | $self->block($::BLOCKTIME, "segmented downloads are forbidden"); |
413 | $self->err(400, "segmented downloads are not allowed"); |
575 | #$self->err_segmented_download; |
|
|
576 | } else { |
|
|
577 | $httpevent->wait; |
|
|
578 | } |
414 | } |
579 | } |
415 | } |
580 | } |
416 | |
581 | |
417 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
582 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
418 | @code = (206, "partial content"); |
583 | @code = (206, "partial content"); |
… | |
… | |
428 | $hdr->{"Content-Length"} = $length; |
593 | $hdr->{"Content-Length"} = $length; |
429 | |
594 | |
430 | $self->response(@code, $hdr, ""); |
595 | $self->response(@code, $hdr, ""); |
431 | |
596 | |
432 | if ($self->{method} eq "GET") { |
597 | if ($self->{method} eq "GET") { |
|
|
598 | $self->{time} = $::NOW; |
|
|
599 | $self->{written} = 0; |
|
|
600 | |
|
|
601 | my $current = $Coro::current; |
|
|
602 | |
433 | my ($fh, $buf); |
603 | my ($fh, $buf, $r); |
|
|
604 | |
434 | open $fh, "<", $self->{path} |
605 | open $fh, "<", $self->{path} |
435 | or die "$self->{path}: late open failure ($!)"; |
606 | or die "$self->{path}: late open failure ($!)"; |
436 | |
607 | |
437 | if ($l) { |
|
|
438 | sysseek $fh, $l, 0 |
|
|
439 | or die "$self->{path}: cannot seek to $l ($!)"; |
|
|
440 | } |
|
|
441 | |
|
|
442 | $h -= $l - 1; |
608 | $h -= $l - 1; |
443 | |
609 | |
|
|
610 | if (0) { # !AIO |
|
|
611 | if ($l) { |
|
|
612 | sysseek $fh, $l, 0; |
|
|
613 | } |
|
|
614 | } |
|
|
615 | |
|
|
616 | my $transfer = $queue->start_transfer($h); |
|
|
617 | my $locked; |
|
|
618 | my $bufsize = $::WAIT_BUFSIZE; # initial buffer size |
|
|
619 | |
444 | while ($h > 0) { |
620 | while ($h > 0) { |
445 | $h -= sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h; |
621 | unless ($locked) { |
446 | my $w = $self->{fh}->syswrite($buf) |
622 | if ($locked ||= $transfer->try($::WAIT_INTERVAL)) { |
|
|
623 | $bufsize = $::BUFSIZE; |
|
|
624 | $self->{time} = $::NOW; |
|
|
625 | $self->{written} = 0; |
|
|
626 | } |
|
|
627 | } |
|
|
628 | |
|
|
629 | if ($blocked{$self->{remote_id}}) { |
|
|
630 | $self->{h}{connection} = "close"; |
|
|
631 | die bless {}, err::; |
|
|
632 | } |
|
|
633 | |
|
|
634 | if (0) { # !AIO |
|
|
635 | sysread $fh, $buf, $h > $bufsize ? $bufsize : $h |
|
|
636 | or last; |
|
|
637 | } else { |
|
|
638 | aio_read($fh, $l, ($h > $bufsize ? $bufsize : $h), |
|
|
639 | $buf, 0, sub { |
|
|
640 | $r = $_[0]; |
|
|
641 | Coro::ready($current); |
|
|
642 | }); |
|
|
643 | &Coro::schedule; |
|
|
644 | last unless $r; |
|
|
645 | } |
|
|
646 | |
|
|
647 | $tbf->request(length $buf); |
|
|
648 | my $w = syswrite $self->{fh}, $buf |
447 | or last; |
649 | or last; |
448 | $::written += $w; |
650 | $::written += $w; |
449 | $self->{written} += $w; |
651 | $self->{written} += $w; |
|
|
652 | $l += $r; |
450 | } |
653 | } |
451 | } |
|
|
452 | |
654 | |
453 | close $fh; |
655 | close $fh; |
|
|
656 | } |
454 | } |
657 | } |
455 | |
658 | |
456 | 1; |
659 | 1; |