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70 | package conn; |
70 | package conn; |
71 | |
71 | |
72 | use Socket; |
72 | use Socket; |
73 | use HTTP::Date; |
73 | use HTTP::Date; |
74 | use Convert::Scalar 'weaken'; |
74 | use Convert::Scalar 'weaken'; |
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75 | use Linux::AIO; |
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76 | |
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77 | Linux::AIO::min_parallel $::AIO_PARALLEL; |
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78 | |
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79 | Event->io(fd => Linux::AIO::poll_fileno, |
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80 | poll => 'r', async => 1, |
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81 | cb => \&Linux::AIO::poll_cb ); |
75 | |
82 | |
76 | our %conn; # $conn{ip}{fh} => connobj |
83 | our %conn; # $conn{ip}{fh} => connobj |
77 | our %blocked; |
84 | our %blocked; |
78 | our %mimetype; |
85 | our %mimetype; |
79 | |
86 | |
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125 | main::slog($_[0], "$self->{remote_addr}> $_[1]"); |
132 | main::slog($_[0], "$self->{remote_addr}> $_[1]"); |
126 | } |
133 | } |
127 | |
134 | |
128 | sub response { |
135 | sub response { |
129 | my ($self, $code, $msg, $hdr, $content) = @_; |
136 | my ($self, $code, $msg, $hdr, $content) = @_; |
130 | my $res = "HTTP/1.0 $code $msg\015\012"; |
137 | my $res = "HTTP/1.1 $code $msg\015\012"; |
131 | |
138 | |
132 | $res .= "Connection: close\015\012"; |
139 | #$res .= "Connection: close\015\012"; |
133 | $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( |
140 | $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( |
134 | |
141 | |
135 | while (my ($h, $v) = each %$hdr) { |
142 | while (my ($h, $v) = each %$hdr) { |
136 | $res .= "$h: $v\015\012" |
143 | $res .= "$h: $v\015\012" |
137 | } |
144 | } |
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152 | unless (defined $content) { |
159 | unless (defined $content) { |
153 | $content = "$code $msg"; |
160 | $content = "$code $msg"; |
154 | $hdr->{"Content-Type"} = "text/plain"; |
161 | $hdr->{"Content-Type"} = "text/plain"; |
155 | $hdr->{"Content-Length"} = length $content; |
162 | $hdr->{"Content-Length"} = length $content; |
156 | } |
163 | } |
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164 | $hdr->{"Connection"} = "close"; |
157 | |
165 | |
158 | $self->response($code, $msg, $hdr, $content); |
166 | $self->response($code, $msg, $hdr, $content); |
159 | |
167 | |
160 | die bless {}, err::; |
168 | die bless {}, err::; |
161 | } |
169 | } |
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163 | sub err_blocked { |
171 | sub err_blocked { |
164 | my $self = shift; |
172 | my $self = shift; |
165 | my $ip = $self->{remote_addr}; |
173 | my $ip = $self->{remote_addr}; |
166 | my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME; |
174 | my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME; |
167 | |
175 | |
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176 | Coro::Event::do_timer(after => 15); |
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177 | |
168 | $self->err(403, "too many connections", |
178 | $self->err(401, "too many connections", |
169 | { |
179 | { |
170 | "Content-Type" => "text/html", |
180 | "Content-Type" => "text/html", |
171 | "Retry-After" => $::BLOCKTIME |
181 | "Retry-After" => $::BLOCKTIME |
172 | }, |
182 | }, |
173 | <<EOF); |
183 | <<EOF); |
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185 | |
195 | |
186 | sub handle { |
196 | sub handle { |
187 | my $self = shift; |
197 | my $self = shift; |
188 | my $fh = $self->{fh}; |
198 | my $fh = $self->{fh}; |
189 | |
199 | |
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200 | $fh->timeout($::REQ_TIMEOUT); |
190 | #while() { |
201 | while() { |
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202 | $self->{reqs}++; |
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203 | |
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204 | # read request and parse first line |
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205 | my $req = $fh->readline("\015\012\015\012"); |
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206 | |
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207 | unless (defined $req) { |
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208 | if (exists $self->{version}) { |
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209 | last; |
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210 | } else { |
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211 | $self->err(408, "request timeout"); |
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212 | } |
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213 | } |
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214 | |
191 | $self->{h} = {}; |
215 | $self->{h} = {}; |
192 | |
216 | |
193 | # read request and parse first line |
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194 | $fh->timeout($::REQ_TIMEOUT); |
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195 | my $req = $fh->readline("\015\012\015\012"); |
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196 | $fh->timeout($::RES_TIMEOUT); |
217 | $fh->timeout($::RES_TIMEOUT); |
197 | |
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198 | defined $req or |
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199 | $self->err(408, "request timeout"); |
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200 | |
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201 | my $ip = $self->{remote_addr}; |
218 | my $ip = $self->{remote_addr}; |
202 | |
219 | |
203 | if ($blocked{$ip}) { |
220 | if ($blocked{$ip}) { |
204 | $self->err_blocked($blocked{$ip}) |
221 | $self->err_blocked($blocked{$ip}) |
205 | if $blocked{$ip} > $::NOW; |
222 | if $blocked{$ip} > $::NOW; |
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215 | $req =~ /^(?:\015\012)? |
232 | $req =~ /^(?:\015\012)? |
216 | (GET|HEAD) \040+ |
233 | (GET|HEAD) \040+ |
217 | ([^\040]+) \040+ |
234 | ([^\040]+) \040+ |
218 | HTTP\/([0-9]+\.[0-9]+) |
235 | HTTP\/([0-9]+\.[0-9]+) |
219 | \015\012/gx |
236 | \015\012/gx |
220 | or $self->err(403, "method not allowed", { Allow => "GET,HEAD" }); |
237 | or $self->err(405, "method not allowed", { Allow => "GET,HEAD" }); |
221 | |
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222 | $2 ne "1.0" |
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223 | or $self->err(506, "http protocol version not supported"); |
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224 | |
238 | |
225 | $self->{method} = $1; |
239 | $self->{method} = $1; |
226 | $self->{uri} = $2; |
240 | $self->{uri} = $2; |
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241 | $self->{version} = $3; |
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242 | |
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243 | $3 eq "1.0" or $3 eq "1.1" |
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244 | or $self->err(506, "http protocol version $3 not supported"); |
227 | |
245 | |
228 | # parse headers |
246 | # parse headers |
229 | { |
247 | { |
230 | my (%hdr, $h, $v); |
248 | my (%hdr, $h, $v); |
231 | |
249 | |
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248 | |
266 | |
249 | weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); |
267 | weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); |
250 | |
268 | |
251 | $self->map_uri; |
269 | $self->map_uri; |
252 | $self->respond; |
270 | $self->respond; |
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271 | |
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272 | last if $self->{h}{connection} =~ /close/ || $self->{version} lt "1.1"; |
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273 | |
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274 | $self->slog(9, "persistant connection [".$self->{h}{"user-agent"}."][$self->{reqs}]"); |
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275 | $fh->timeout($::PER_TIMEOUT); |
253 | #} |
276 | } |
254 | } |
277 | } |
255 | |
278 | |
256 | # uri => path mapping |
279 | # uri => path mapping |
257 | sub map_uri { |
280 | sub map_uri { |
258 | my $self = shift; |
281 | my $self = shift; |
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403 | |
426 | |
404 | satisfiable: |
427 | satisfiable: |
405 | # check for segmented downloads |
428 | # check for segmented downloads |
406 | if ($l && $::NO_SEGMENTED) { |
429 | if ($l && $::NO_SEGMENTED) { |
407 | if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { |
430 | if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { |
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431 | Coro::Event::do_timer(after => 15); |
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432 | |
408 | $self->err(400, "segmented downloads are not allowed"); |
433 | $self->err(400, "segmented downloads are not allowed"); |
409 | } |
434 | } |
410 | } |
435 | } |
411 | |
436 | |
412 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
437 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
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423 | $hdr->{"Content-Length"} = $length; |
448 | $hdr->{"Content-Length"} = $length; |
424 | |
449 | |
425 | $self->response(@code, $hdr, ""); |
450 | $self->response(@code, $hdr, ""); |
426 | |
451 | |
427 | if ($self->{method} eq "GET") { |
452 | if ($self->{method} eq "GET") { |
428 | my ($fh, $buf); |
453 | my ($fh, $buf, $r); |
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454 | my $current = $Coro::current; |
429 | open $fh, "<", $self->{path} |
455 | open $fh, "<", $self->{path} |
430 | or die "$self->{path}: late open failure ($!)"; |
456 | or die "$self->{path}: late open failure ($!)"; |
431 | |
457 | |
432 | if ($l) { |
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433 | sysseek $fh, $l, 0 |
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434 | or die "$self->{path}: cannot seek to $l ($!)"; |
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435 | } |
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436 | |
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437 | $h -= $l - 1; |
458 | $h -= $l - 1; |
438 | |
459 | |
439 | while ($h > 0) { |
460 | while ($h > 0) { |
440 | $h -= sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h; |
461 | aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h), |
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462 | $buf, 0, sub { |
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463 | $r = $_[0]; |
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464 | $current->ready; |
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465 | }); |
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466 | &Coro::schedule; |
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467 | last unless $r; |
441 | my $w = $self->{fh}->syswrite($buf) |
468 | my $w = $self->{fh}->syswrite($buf) |
442 | or last; |
469 | or last; |
443 | $::written += $w; |
470 | $::written += $w; |
444 | $self->{written} += $w; |
471 | $self->{written} += $w; |
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472 | $l += $r; |
445 | } |
473 | } |
446 | } |
474 | } |
447 | |
475 | |
448 | close $fh; |
476 | close $fh; |
449 | } |
477 | } |