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 | |
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7 | use HTTP::Date; |
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8 | use POSIX (); |
5 | |
9 | |
6 | no utf8; |
10 | no utf8; |
7 | use bytes; |
11 | use bytes; |
8 | |
12 | |
9 | # at least on my machine, this thingy serves files |
13 | # at least on my machine, this thingy serves files |
10 | # quite a bit faster than apache, ;) |
14 | # quite a bit faster than apache, ;) |
11 | # and quite a bit slower than thttpd :( |
15 | # and quite a bit slower than thttpd :( |
12 | |
16 | |
13 | $SIG{PIPE} = 'IGNORE'; |
17 | $SIG{PIPE} = 'IGNORE'; |
14 | |
18 | |
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19 | our $accesslog; |
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20 | |
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21 | if ($ACCESS_LOG) { |
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22 | use IO::Handle; |
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23 | open $accesslog, ">>$ACCESS_LOG" |
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24 | or die "$ACCESS_LOG: $!"; |
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25 | $accesslog->autoflush(1); |
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26 | } |
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27 | |
15 | sub slog { |
28 | sub slog { |
16 | my $level = shift; |
29 | my $level = shift; |
17 | my $format = shift; |
30 | my $format = shift; |
18 | printf "---: $format\n", @_; |
31 | printf "---: $format\n", @_; |
19 | } |
32 | } |
20 | |
33 | |
21 | my $connections = new Coro::Semaphore $MAX_CONNECTS; |
34 | our $connections = new Coro::Semaphore $MAX_CONNECTS || 250; |
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35 | our $httpevent = new Coro::Signal; |
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36 | |
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37 | our $wait_factor = 0.95; |
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38 | |
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39 | our $queue_small = new transferqueue $MAX_TRANSFERS_SMALL; |
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40 | our $queue_large = new transferqueue $MAX_TRANSFERS_LARGE; |
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41 | our $queue_index = new transferqueue 5; |
22 | |
42 | |
23 | my @newcons; |
43 | my @newcons; |
24 | my @pool; |
44 | my @pool; |
25 | |
45 | |
26 | # one "execution thread" |
46 | # one "execution thread" |
27 | sub handler { |
47 | sub handler { |
28 | while () { |
48 | while () { |
29 | my $new = pop @newcons; |
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30 | if ($new) { |
49 | if (@newcons) { |
31 | eval { |
50 | eval { |
32 | conn->new(@$new)->handle; |
51 | conn->new(@{pop @newcons})->handle; |
33 | }; |
52 | }; |
34 | slog 1, "$@" if $@ && !ref $@; |
53 | slog 1, "$@" if $@ && !ref $@; |
35 | $connections->up; |
54 | $connections->up; |
36 | } else { |
55 | } else { |
37 | last if @pool >= $MAX_POOL; |
56 | last if @pool >= $MAX_POOL; |
… | |
… | |
39 | schedule; |
58 | schedule; |
40 | } |
59 | } |
41 | } |
60 | } |
42 | } |
61 | } |
43 | |
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 | |
44 | my $http_port = new Coro::Socket |
85 | my $http_port = new Coro::Socket |
45 | LocalAddr => $SERVER_HOST, |
86 | LocalAddr => $SERVER_HOST, |
46 | LocalPort => $SERVER_PORT, |
87 | LocalPort => $SERVER_PORT, |
47 | ReuseAddr => 1, |
88 | ReuseAddr => 1, |
48 | Listen => 50, |
89 | Listen => 50, |
49 | or die "unable to start server"; |
90 | or die "unable to start server"; |
50 | |
91 | |
51 | push @listen_sockets, $http_port; |
92 | listen_on $http_port; |
52 | |
93 | |
53 | # the "main thread" |
94 | if ($SERVER_PORT2) { |
54 | async { |
95 | my $http_port = new Coro::Socket |
55 | slog 1, "accepting connections"; |
96 | LocalAddr => $SERVER_HOST, |
56 | while () { |
97 | LocalPort => $SERVER_PORT2, |
57 | $connections->down; |
98 | ReuseAddr => 1, |
58 | push @newcons, [$http_port->accept]; |
99 | Listen => 50, |
59 | #slog 3, "accepted @$connections ".scalar(@pool); |
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 | } |
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104 | |
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105 | our $NOW; |
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106 | our $HTTP_NOW; |
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107 | |
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108 | Event->timer(interval => 1, hard => 1, cb => sub { |
60 | $::NOW = time; |
109 | $NOW = time; |
61 | if (@pool) { |
110 | $HTTP_NOW = time2str $NOW; |
62 | (pop @pool)->ready; |
111 | })->now; |
63 | } else { |
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64 | async \&handler; |
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65 | } |
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66 | |
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67 | } |
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68 | }; |
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69 | |
112 | |
70 | package conn; |
113 | package conn; |
71 | |
114 | |
72 | use Socket; |
115 | use Socket; |
73 | use HTTP::Date; |
116 | use HTTP::Date; |
… | |
… | |
78 | |
121 | |
79 | Event->io(fd => Linux::AIO::poll_fileno, |
122 | Event->io(fd => Linux::AIO::poll_fileno, |
80 | poll => 'r', async => 1, |
123 | poll => 'r', async => 1, |
81 | cb => \&Linux::AIO::poll_cb); |
124 | cb => \&Linux::AIO::poll_cb); |
82 | |
125 | |
83 | our %conn; # $conn{ip}{fh} => connobj |
126 | our %conn; # $conn{ip}{self} => connobj |
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127 | our %uri; # $uri{ip}{uri}{self} |
84 | our %blocked; |
128 | our %blocked; |
85 | our %mimetype; |
129 | our %mimetype; |
86 | |
130 | |
87 | sub read_mimetypes { |
131 | sub read_mimetypes { |
88 | local *M; |
132 | local *M; |
… | |
… | |
99 | |
143 | |
100 | read_mimetypes; |
144 | read_mimetypes; |
101 | |
145 | |
102 | sub new { |
146 | sub new { |
103 | my $class = shift; |
147 | my $class = shift; |
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148 | my $fh = shift; |
104 | my $peername = shift; |
149 | my $peername = shift; |
105 | my $fh = shift; |
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106 | my $self = bless { fh => $fh }, $class; |
150 | my $self = bless { fh => $fh }, $class; |
107 | my (undef, $iaddr) = unpack_sockaddr_in $peername |
151 | my (undef, $iaddr) = unpack_sockaddr_in $peername |
108 | or $self->err(500, "unable to decode peername"); |
152 | or $self->err(500, "unable to decode peername"); |
109 | |
153 | |
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154 | $self->{remote_addr} = |
110 | $self->{remote_addr} = inet_ntoa $iaddr; |
155 | $self->{remote_id} = inet_ntoa $iaddr; |
111 | $self->{time} = $::NOW; |
156 | $self->{time} = $::NOW; |
112 | |
157 | |
113 | # enter ourselves into various lists |
158 | weaken ($Coro::current->{conn} = $self); |
114 | weaken ($conn{$self->{remote_addr}}{$self*1} = $self); |
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115 | |
159 | |
116 | $::conns++; |
160 | $::conns++; |
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161 | $::maxconns = $::conns if $::conns > $::maxconns; |
117 | |
162 | |
118 | $self; |
163 | $self; |
119 | } |
164 | } |
120 | |
165 | |
121 | sub DESTROY { |
166 | sub DESTROY { |
122 | my $self = shift; |
167 | my $self = shift; |
123 | |
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124 | $::conns--; |
168 | $::conns--; |
125 | |
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126 | $self->eoconn; |
169 | $self->eoconn; |
127 | delete $conn{$self->{remote_addr}}{$self*1}; |
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128 | } |
170 | } |
129 | |
171 | |
130 | # end of connection |
172 | # end of connection |
131 | sub eoconn { |
173 | sub eoconn { |
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174 | my $self = shift; |
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175 | |
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176 | # clean up hints |
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177 | delete $conn{$self->{remote_id}}{$self*1}; |
132 | delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1}; |
178 | delete $uri{$self->{remote_id}}{$self->{uri}}{$self*1}; |
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179 | |
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180 | $httpevent->broadcast; |
133 | } |
181 | } |
134 | |
182 | |
135 | sub slog { |
183 | sub slog { |
136 | my $self = shift; |
184 | my $self = shift; |
137 | main::slog($_[0], "$self->{remote_addr}> $_[1]"); |
185 | main::slog($_[0], "$self->{remote_id}> $_[1]"); |
138 | } |
186 | } |
139 | |
187 | |
140 | sub response { |
188 | sub response { |
141 | my ($self, $code, $msg, $hdr, $content) = @_; |
189 | my ($self, $code, $msg, $hdr, $content) = @_; |
142 | my $res = "HTTP/1.1 $code $msg\015\012"; |
190 | my $res = "HTTP/1.1 $code $msg\015\012"; |
143 | |
191 | |
144 | #$res .= "Connection: close\015\012"; |
192 | if (exists $hdr->{Connection}) { |
145 | $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( |
193 | if ($hdr->{Connection} =~ /close/) { |
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194 | $self->{h}{connection} = "close" |
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195 | } |
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196 | } else { |
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197 | if ($self->{version} < 1.1) { |
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198 | if ($self->{h}{connection} =~ /keep-alive/i) { |
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199 | $hdr->{Connection} = "Keep-Alive"; |
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200 | } else { |
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201 | $self->{h}{connection} = "close" |
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202 | } |
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203 | } |
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204 | } |
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205 | |
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206 | $res .= "Date: $HTTP_NOW\015\012"; |
146 | |
207 | |
147 | while (my ($h, $v) = each %$hdr) { |
208 | while (my ($h, $v) = each %$hdr) { |
148 | $res .= "$h: $v\015\012" |
209 | $res .= "$h: $v\015\012" |
149 | } |
210 | } |
150 | $res .= "\015\012"; |
211 | $res .= "\015\012"; |
151 | |
212 | |
152 | $res .= $content if defined $content and $self->{method} ne "HEAD"; |
213 | $res .= $content if defined $content and $self->{method} ne "HEAD"; |
153 | |
214 | |
154 | print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n"; |
215 | my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $NOW). |
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216 | " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}. |
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217 | " \"$self->{h}{referer}\"\n"; |
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218 | |
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219 | print $accesslog $log if $accesslog; |
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220 | print STDERR $log; |
155 | |
221 | |
156 | $self->{written} += |
222 | $self->{written} += |
157 | print {$self->{fh}} $res; |
223 | print {$self->{fh}} $res; |
158 | } |
224 | } |
159 | |
225 | |
160 | sub err { |
226 | sub err { |
161 | my $self = shift; |
227 | my $self = shift; |
162 | my ($code, $msg, $hdr, $content) = @_; |
228 | my ($code, $msg, $hdr, $content) = @_; |
163 | |
229 | |
164 | unless (defined $content) { |
230 | unless (defined $content) { |
165 | $content = "$code $msg"; |
231 | $content = "$code $msg\n"; |
166 | $hdr->{"Content-Type"} = "text/plain"; |
232 | $hdr->{"Content-Type"} = "text/plain"; |
167 | $hdr->{"Content-Length"} = length $content; |
233 | $hdr->{"Content-Length"} = length $content; |
168 | } |
234 | } |
169 | $hdr->{"Connection"} = "close"; |
235 | $hdr->{"Connection"} = "close"; |
170 | |
236 | |
171 | $self->response($code, $msg, $hdr, $content); |
237 | $self->response($code, $msg, $hdr, $content); |
172 | |
238 | |
173 | die bless {}, err::; |
239 | die bless {}, err::; |
174 | } |
240 | } |
175 | |
241 | |
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 | |
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203 | sub handle { |
242 | sub handle { |
204 | my $self = shift; |
243 | my $self = shift; |
205 | my $fh = $self->{fh}; |
244 | my $fh = $self->{fh}; |
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245 | |
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246 | my $host; |
206 | |
247 | |
207 | $fh->timeout($::REQ_TIMEOUT); |
248 | $fh->timeout($::REQ_TIMEOUT); |
208 | while() { |
249 | while() { |
209 | $self->{reqs}++; |
250 | $self->{reqs}++; |
210 | |
251 | |
… | |
… | |
220 | } |
261 | } |
221 | |
262 | |
222 | $self->{h} = {}; |
263 | $self->{h} = {}; |
223 | |
264 | |
224 | $fh->timeout($::RES_TIMEOUT); |
265 | $fh->timeout($::RES_TIMEOUT); |
225 | my $ip = $self->{remote_addr}; |
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226 | |
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227 | if ($blocked{$ip}) { |
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228 | $self->err_blocked($blocked{$ip}) |
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229 | if $blocked{$ip} > $::NOW; |
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230 | |
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231 | delete $blocked{$ip}; |
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232 | } |
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233 | |
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234 | if (%{$conn{$ip}} > $::MAX_CONN_IP) { |
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235 | $self->slog(2, "blocked ip $ip"); |
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236 | $self->err_blocked; |
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237 | } |
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238 | |
266 | |
239 | $req =~ /^(?:\015\012)? |
267 | $req =~ /^(?:\015\012)? |
240 | (GET|HEAD) \040+ |
268 | (GET|HEAD) \040+ |
241 | ([^\040]+) \040+ |
269 | ([^\040]+) \040+ |
242 | HTTP\/([0-9]+\.[0-9]+) |
270 | HTTP\/([0-9]+\.[0-9]+) |
… | |
… | |
267 | |
295 | |
268 | $self->{h}{$h} = substr $v, 1 |
296 | $self->{h}{$h} = substr $v, 1 |
269 | while ($h, $v) = each %hdr; |
297 | while ($h, $v) = each %hdr; |
270 | } |
298 | } |
271 | |
299 | |
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300 | # remote id should be unique per user |
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301 | my $id = $self->{remote_addr}; |
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302 | |
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303 | if (exists $self->{h}{"client-ip"}) { |
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304 | $id .= "[".$self->{h}{"client-ip"}."]"; |
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305 | } elsif (exists $self->{h}{"x-forwarded-for"}) { |
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306 | $id .= "[".$self->{h}{"x-forwarded-for"}."]"; |
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307 | } |
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308 | |
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309 | $self->{remote_id} = $id; |
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310 | |
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311 | if ($blocked{$id}) { |
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312 | $self->err_blocked($blocked{$id}) |
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313 | if $blocked{$id} > $::NOW; |
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314 | |
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315 | delete $blocked{$id}; |
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316 | } |
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317 | |
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318 | if (%{$conn{$id}} >= $::MAX_CONN_IP) { |
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319 | my $delay = $::PER_TIMEOUT + $::NOW + 15; |
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320 | while (%{$conn{$id}} >= $::MAX_CONN_IP) { |
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321 | if ($delay < $::NOW) { |
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322 | $self->slog(2, "blocked ip $id"); |
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323 | $self->err_blocked; |
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324 | } else { |
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325 | $httpevent->wait; |
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326 | } |
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327 | } |
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328 | } |
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329 | |
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330 | # find out server name and port |
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331 | if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) { |
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332 | $host = $1; |
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333 | } else { |
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334 | $host = $self->{h}{host}; |
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335 | } |
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336 | |
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337 | if (defined $host) { |
272 | $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; |
338 | $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80; |
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339 | } else { |
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340 | ($self->{server_port}, $host) |
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341 | = unpack_sockaddr_in $self->{fh}->sockname |
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342 | or $self->err(500, "unable to get socket name"); |
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343 | $host = inet_ntoa $host; |
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344 | } |
273 | |
345 | |
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346 | $self->{server_name} = $host; |
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347 | |
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348 | # enter ourselves into various lists |
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349 | weaken ($conn{$id}{$self*1} = $self); |
274 | weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); |
350 | weaken ($uri{$id}{$self->{uri}}{$self*1} = $self); |
275 | |
351 | |
276 | eval { |
352 | eval { |
277 | $self->map_uri; |
353 | $self->map_uri; |
278 | $self->respond; |
354 | $self->respond; |
279 | }; |
355 | }; |
280 | |
356 | |
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357 | $self->eoconn; |
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358 | |
281 | die if $@ && !ref $@; |
359 | die if $@ && !ref $@; |
282 | |
360 | |
283 | $self->eoconn; |
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284 | |
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285 | last if $self->{h}{connection} =~ /close/ || $self->{version} lt "1.1"; |
361 | last if $self->{h}{connection} =~ /close/; |
286 | |
362 | |
287 | $self->slog(9, "persistent connection [".$self->{h}{"user-agent"}."][$self->{reqs}]"); |
363 | $httpevent->broadcast; |
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364 | |
288 | $fh->timeout($::PER_TIMEOUT); |
365 | $fh->timeout($::PER_TIMEOUT); |
289 | } |
366 | } |
290 | } |
367 | } |
291 | |
368 | |
292 | # uri => path mapping |
369 | # uri => path mapping |
293 | sub map_uri { |
370 | sub map_uri { |
294 | my $self = shift; |
371 | my $self = shift; |
295 | my $host = $self->{h}{host} || "default"; |
372 | my $host = $self->{server_name}; |
296 | my $uri = $self->{uri}; |
373 | my $uri = $self->{uri}; |
297 | |
374 | |
298 | # some massaging, also makes it more secure |
375 | # some massaging, also makes it more secure |
299 | $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; |
376 | $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; |
300 | $uri =~ s%//+%/%g; |
377 | $uri =~ s%//+%/%g; |
… | |
… | |
310 | $self->{path} = "$::DOCROOT/$host$uri"; |
387 | $self->{path} = "$::DOCROOT/$host$uri"; |
311 | |
388 | |
312 | $self->access_check; |
389 | $self->access_check; |
313 | } |
390 | } |
314 | |
391 | |
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 { |
|
|
323 | my $self = shift; |
|
|
324 | if (exists $self->{h}{host}) { |
|
|
325 | return $self->{h}{host}; |
|
|
326 | } else { |
|
|
327 | return (($self->server_address)[0]); |
|
|
328 | } |
|
|
329 | } |
|
|
330 | |
|
|
331 | sub server_hostport { |
|
|
332 | my $self = shift; |
|
|
333 | my ($host, $port); |
|
|
334 | if (exists $self->{h}{host}) { |
|
|
335 | ($host, $port) = ($self->{h}{host}, $self->{server_port}); |
|
|
336 | } else { |
|
|
337 | ($host, $port) = $self->server_address; |
|
|
338 | } |
|
|
339 | $port = $port == 80 ? "" : ":$port"; |
|
|
340 | $host.$port; |
|
|
341 | } |
|
|
342 | |
|
|
343 | sub _cgi { |
392 | sub _cgi { |
344 | my $self = shift; |
393 | my $self = shift; |
345 | my $path = shift; |
394 | my $path = shift; |
346 | my $fh; |
395 | my $fh; |
347 | |
396 | |
348 | # no two-way xxx supported |
397 | # no two-way xxx supported |
349 | if (0 == fork) { |
398 | if (0 == fork) { |
350 | open STDOUT, ">&".fileno($self->{fh}); |
399 | open STDOUT, ">&".fileno($self->{fh}); |
351 | if (chdir $::DOCROOT) { |
400 | if (chdir $::DOCROOT) { |
352 | $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike |
401 | $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike |
353 | $ENV{HTTP_HOST} = $self->server_host; |
402 | $ENV{HTTP_HOST} = $self->{server_name}; |
354 | $ENV{HTTP_PORT} = $self->{server_host}; |
403 | $ENV{HTTP_PORT} = $self->{server_port}; |
355 | $ENV{SCRIPT_NAME} = $self->{name}; |
404 | $ENV{SCRIPT_NAME} = $self->{name}; |
356 | exec $path; |
405 | exec $path; |
357 | } |
406 | } |
358 | Coro::State::_exit(0); |
407 | Coro::State::_exit(0); |
359 | } else { |
408 | } else { |
|
|
409 | die; |
360 | } |
410 | } |
|
|
411 | } |
|
|
412 | |
|
|
413 | sub server_hostport { |
|
|
414 | $_[0]{server_port} == 80 |
|
|
415 | ? $_[0]{server_name} |
|
|
416 | : "$_[0]{server_name}:$_[0]{server_port}"; |
361 | } |
417 | } |
362 | |
418 | |
363 | sub respond { |
419 | sub respond { |
364 | my $self = shift; |
420 | my $self = shift; |
365 | my $path = $self->{path}; |
421 | my $path = $self->{path}; |
366 | |
422 | |
367 | stat $path |
423 | if ($self->{name} =~ s%^/internal/([^/]+)%%) { |
368 | or $self->err(404, "not found"); |
424 | if ($::internal{$1}) { |
369 | |
425 | $::internal{$1}->($self); |
370 | $self->{stat} = [stat _]; |
|
|
371 | |
|
|
372 | # idiotic netscape sends idiotic headers AGAIN |
|
|
373 | my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ |
|
|
374 | ? str2time $1 : 0; |
|
|
375 | |
|
|
376 | if (-d _ && -r _) { |
|
|
377 | # directory |
|
|
378 | if ($path !~ /\/$/) { |
|
|
379 | # create a redirect to get the trailing "/" |
|
|
380 | my $host = $self->server_hostport; |
|
|
381 | $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); |
|
|
382 | } else { |
426 | } else { |
383 | $ims < $self->{stat}[9] |
427 | $self->err(404, "not found"); |
|
|
428 | } |
|
|
429 | } else { |
|
|
430 | |
|
|
431 | stat $path |
384 | or $self->err(304, "not modified"); |
432 | or $self->err(404, "not found"); |
385 | |
433 | |
386 | if (-r "$path/index.html") { |
434 | $self->{stat} = [stat _]; |
387 | $self->{path} .= "/index.html"; |
435 | |
388 | $self->handle_file; |
436 | # idiotic netscape sends idiotic headers AGAIN |
|
|
437 | my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ |
|
|
438 | ? str2time $1 : 0; |
|
|
439 | |
|
|
440 | if (-d _ && -r _) { |
|
|
441 | # directory |
|
|
442 | if ($path !~ /\/$/) { |
|
|
443 | # create a redirect to get the trailing "/" |
|
|
444 | # we don't try to avoid the :80 |
|
|
445 | $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" }); |
389 | } else { |
446 | } else { |
|
|
447 | $ims < $self->{stat}[9] |
|
|
448 | or $self->err(304, "not modified"); |
|
|
449 | |
|
|
450 | if (-r "$path/index.html") { |
|
|
451 | # replace directory "size" by index.html filesize |
|
|
452 | $self->{stat} = [stat ($self->{path} .= "/index.html")]; |
|
|
453 | $self->handle_file($queue_index); |
|
|
454 | } else { |
390 | $self->handle_dir; |
455 | $self->handle_dir; |
391 | } |
456 | } |
392 | } |
457 | } |
393 | } elsif (-f _ && -r _) { |
458 | } elsif (-f _ && -r _) { |
394 | -x _ and $self->err(403, "forbidden"); |
459 | -x _ and $self->err(403, "forbidden"); |
395 | $self->handle_file; |
460 | $self->handle_file(-s _ >= $::TRANSFER_SMALL ? $queue_large : $queue_small); |
396 | } else { |
461 | } else { |
397 | $self->err(404, "not found"); |
462 | $self->err(404, "not found"); |
|
|
463 | } |
398 | } |
464 | } |
399 | } |
465 | } |
400 | |
466 | |
401 | sub handle_dir { |
467 | sub handle_dir { |
402 | my $self = shift; |
468 | my $self = shift; |
… | |
… | |
404 | |
470 | |
405 | $self->response(200, "ok", |
471 | $self->response(200, "ok", |
406 | { |
472 | { |
407 | "Content-Type" => "text/html", |
473 | "Content-Type" => "text/html", |
408 | "Content-Length" => length $idx, |
474 | "Content-Length" => length $idx, |
|
|
475 | "Last-Modified" => time2str ($self->{stat}[9]), |
409 | }, |
476 | }, |
410 | $idx); |
477 | $idx); |
411 | } |
478 | } |
412 | |
479 | |
413 | sub handle_file { |
480 | sub handle_file { |
414 | my $self = shift; |
481 | my ($self, $queue) = @_; |
415 | my $length = -s _; |
482 | my $length = $self->{stat}[7]; |
416 | my $hdr = { |
483 | my $hdr = { |
417 | "Last-Modified" => time2str ((stat _)[9]), |
484 | "Last-Modified" => time2str ((stat _)[9]), |
418 | }; |
485 | }; |
419 | |
486 | |
420 | my @code = (200, "ok"); |
487 | my @code = (200, "ok"); |
… | |
… | |
428 | ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); |
495 | ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); |
429 | } else { |
496 | } else { |
430 | ($l, $h) = (0, $length - 1); |
497 | ($l, $h) = (0, $length - 1); |
431 | goto ignore; |
498 | goto ignore; |
432 | } |
499 | } |
433 | goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; |
500 | goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; |
434 | } |
501 | } |
435 | $hdr->{"Content-Range"} = "bytes */$length"; |
502 | $hdr->{"Content-Range"} = "bytes */$length"; |
436 | $hdr->{"Content-Length"} = $length; |
503 | $hdr->{"Content-Length"} = $length; |
437 | $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")"); |
|
|
438 | $self->err(416, "not satisfiable", $hdr, ""); |
504 | $self->err(416, "not satisfiable", $hdr, ""); |
439 | |
505 | |
440 | satisfiable: |
506 | satisfiable: |
441 | # check for segmented downloads |
507 | # check for segmented downloads |
442 | if ($l && $::NO_SEGMENTED) { |
508 | if ($l && $::NO_SEGMENTED) { |
|
|
509 | my $delay = $::NOW + $::PER_TIMEOUT + 15; |
443 | if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { |
510 | while (%{$uri{$self->{remote_id}}{$self->{uri}}} > 1) { |
444 | Coro::Event::do_timer(after => 15); |
511 | if ($delay <= $::NOW) { |
445 | |
512 | $self->err_segmented_download; |
446 | $self->err(400, "segmented downloads are not allowed"); |
513 | } else { |
|
|
514 | $httpevent->wait; |
|
|
515 | } |
447 | } |
516 | } |
448 | } |
517 | } |
449 | |
518 | |
450 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
519 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
451 | @code = (206, "partial content"); |
520 | @code = (206, "partial content"); |
… | |
… | |
461 | $hdr->{"Content-Length"} = $length; |
530 | $hdr->{"Content-Length"} = $length; |
462 | |
531 | |
463 | $self->response(@code, $hdr, ""); |
532 | $self->response(@code, $hdr, ""); |
464 | |
533 | |
465 | if ($self->{method} eq "GET") { |
534 | if ($self->{method} eq "GET") { |
|
|
535 | $self->{time} = $::NOW; |
|
|
536 | |
|
|
537 | my $current = $Coro::current; |
|
|
538 | |
466 | my ($fh, $buf, $r); |
539 | my ($fh, $buf, $r); |
467 | my $current = $Coro::current; |
540 | |
468 | open $fh, "<", $self->{path} |
541 | open $fh, "<", $self->{path} |
469 | or die "$self->{path}: late open failure ($!)"; |
542 | or die "$self->{path}: late open failure ($!)"; |
470 | |
543 | |
471 | $h -= $l - 1; |
544 | $h -= $l - 1; |
472 | |
545 | |
473 | if (0) { |
546 | if (0) { # !AIO |
474 | if ($l) { |
547 | if ($l) { |
475 | sysseek $fh, $l, 0; |
548 | sysseek $fh, $l, 0; |
476 | } |
549 | } |
477 | } |
550 | } |
|
|
551 | |
|
|
552 | my $transfer = $queue->start_transfer; |
|
|
553 | my $locked; |
|
|
554 | my $bufsize = $::WAIT_BUFSIZE; # initial buffer size |
478 | |
555 | |
479 | while ($h > 0) { |
556 | while ($h > 0) { |
|
|
557 | unless ($locked) { |
|
|
558 | if ($locked ||= $transfer->try($::WAIT_INTERVAL)) { |
|
|
559 | $bufsize = $::BUFSIZE; |
|
|
560 | $self->{time} = $::NOW; |
|
|
561 | } |
|
|
562 | } |
|
|
563 | |
480 | if (0) { |
564 | if (0) { # !AIO |
481 | sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h |
565 | sysread $fh, $buf, $h > $bufsize ? $bufsize : $h |
482 | or last; |
566 | or last; |
483 | } else { |
567 | } else { |
484 | aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h), |
568 | aio_read($fh, $l, ($h > $bufsize ? $bufsize : $h), |
485 | $buf, 0, sub { |
569 | $buf, 0, sub { |
486 | $r = $_[0]; |
570 | $r = $_[0]; |
487 | $current->ready; |
571 | Coro::ready($current); |
488 | }); |
572 | }); |
489 | &Coro::schedule; |
573 | &Coro::schedule; |
490 | last unless $r; |
574 | last unless $r; |
491 | } |
575 | } |
492 | my $w = $self->{fh}->syswrite($buf) |
576 | my $w = syswrite $self->{fh}, $buf |
493 | or last; |
577 | or last; |
494 | $::written += $w; |
578 | $::written += $w; |
495 | $self->{written} += $w; |
579 | $self->{written} += $w; |
496 | $l += $r; |
580 | $l += $r; |
497 | } |
581 | } |
498 | } |
|
|
499 | |
582 | |
500 | close $fh; |
583 | close $fh; |
|
|
584 | } |
501 | } |
585 | } |
502 | |
586 | |
503 | 1; |
587 | 1; |