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 (); |
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9 | |
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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 | |
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21 | our $accesslog; |
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22 | our $errorlog; |
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23 | |
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24 | our $NOW; |
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25 | our $HTTP_NOW; |
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26 | |
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27 | Event->timer(interval => 1, hard => 1, cb => sub { |
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28 | $NOW = time; |
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29 | $HTTP_NOW = time2str $NOW; |
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30 | })->now; |
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31 | |
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32 | if ($ERROR_LOG) { |
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33 | use IO::Handle; |
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34 | open $errorlog, ">>$ERROR_LOG" |
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35 | or die "$ERROR_LOG: $!"; |
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36 | $errorlog->autoflush(1); |
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37 | } |
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38 | |
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39 | if ($ACCESS_LOG) { |
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40 | use IO::Handle; |
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41 | open $accesslog, ">>$ACCESS_LOG" |
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42 | or die "$ACCESS_LOG: $!"; |
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43 | $accesslog->autoflush(1); |
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44 | } |
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45 | |
15 | sub slog { |
46 | sub slog { |
16 | my $level = shift; |
47 | my $level = shift; |
17 | my $format = shift; |
48 | my $format = shift; |
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49 | my $NOW = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW); |
18 | printf "---: $format\n", @_; |
50 | printf "$NOW: $format\n", @_; |
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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; |
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55 | our $httpevent = new Coro::Signal; |
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56 | |
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57 | our $queue_file = new transferqueue $MAX_TRANSFERS; |
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58 | our $queue_index = new transferqueue 10; |
22 | |
59 | |
23 | my @newcons; |
60 | my @newcons; |
24 | my @pool; |
61 | my @pool; |
25 | |
62 | |
26 | # one "execution thread" |
63 | # one "execution thread" |
27 | sub handler { |
64 | sub handler { |
28 | while () { |
65 | while () { |
29 | my $new = pop @newcons; |
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30 | if ($new) { |
66 | if (@newcons) { |
31 | eval { |
67 | eval { |
32 | conn->new(@$new)->handle; |
68 | conn->new(@{pop @newcons})->handle; |
33 | }; |
69 | }; |
34 | slog 1, "$@" if $@ && !ref $@; |
70 | slog 1, "$@" if $@ && !ref $@; |
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71 | |
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72 | $httpevent->broadcast; # only for testing, but doesn't matter much |
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73 | |
35 | $connections->up; |
74 | $connections->up; |
36 | } else { |
75 | } else { |
37 | last if @pool >= $MAX_POOL; |
76 | last if @pool >= $MAX_POOL; |
38 | push @pool, $Coro::current; |
77 | push @pool, $Coro::current; |
39 | schedule; |
78 | schedule; |
40 | } |
79 | } |
41 | } |
80 | } |
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81 | } |
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82 | |
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83 | sub listen_on { |
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84 | my $listen = $_[0]; |
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85 | |
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86 | push @listen_sockets, $listen; |
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87 | |
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88 | # the "main thread" |
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89 | async { |
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90 | slog 1, "accepting connections"; |
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91 | while () { |
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92 | $connections->down; |
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93 | push @newcons, [$listen->accept]; |
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94 | #slog 3, "accepted @$connections ".scalar(@pool); |
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95 | if (@pool) { |
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96 | (pop @pool)->ready; |
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97 | } else { |
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98 | async \&handler; |
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99 | } |
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100 | |
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101 | } |
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102 | }; |
42 | } |
103 | } |
43 | |
104 | |
44 | my $http_port = new Coro::Socket |
105 | my $http_port = new Coro::Socket |
45 | LocalAddr => $SERVER_HOST, |
106 | LocalAddr => $SERVER_HOST, |
46 | LocalPort => $SERVER_PORT, |
107 | LocalPort => $SERVER_PORT, |
47 | ReuseAddr => 1, |
108 | ReuseAddr => 1, |
48 | Listen => 50, |
109 | Listen => 50, |
49 | or die "unable to start server"; |
110 | or die "unable to start server"; |
50 | |
111 | |
51 | push @listen_sockets, $http_port; |
112 | listen_on $http_port; |
52 | |
113 | |
53 | # the "main thread" |
114 | if ($SERVER_PORT2) { |
54 | async { |
115 | my $http_port = new Coro::Socket |
55 | slog 1, "accepting connections"; |
116 | LocalAddr => $SERVER_HOST, |
56 | while () { |
117 | LocalPort => $SERVER_PORT2, |
57 | $connections->down; |
118 | ReuseAddr => 1, |
58 | push @newcons, [$http_port->accept]; |
119 | Listen => 50, |
59 | #slog 3, "accepted @$connections ".scalar(@pool); |
120 | or die "unable to start server"; |
60 | $::NOW = time; |
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61 | if (@pool) { |
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62 | (pop @pool)->ready; |
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63 | } else { |
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64 | async \&handler; |
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65 | } |
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66 | |
121 | |
67 | } |
122 | listen_on $http_port; |
68 | }; |
123 | } |
69 | |
124 | |
70 | package conn; |
125 | package conn; |
71 | |
126 | |
72 | use Socket; |
127 | use Socket; |
73 | use HTTP::Date; |
128 | use HTTP::Date; |
… | |
… | |
100 | |
155 | |
101 | read_mimetypes; |
156 | read_mimetypes; |
102 | |
157 | |
103 | sub new { |
158 | sub new { |
104 | my $class = shift; |
159 | my $class = shift; |
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160 | my $fh = shift; |
105 | my $peername = shift; |
161 | my $peername = shift; |
106 | my $fh = shift; |
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107 | my $self = bless { fh => $fh }, $class; |
162 | my $self = bless { fh => $fh }, $class; |
108 | my (undef, $iaddr) = unpack_sockaddr_in $peername |
163 | my (undef, $iaddr) = unpack_sockaddr_in $peername |
109 | or $self->err(500, "unable to decode peername"); |
164 | or $self->err(500, "unable to decode peername"); |
110 | |
165 | |
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166 | $self->{remote_addr} = |
111 | $self->{remote_addr} = inet_ntoa $iaddr; |
167 | $self->{remote_id} = inet_ntoa $iaddr; |
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168 | |
112 | $self->{time} = $::NOW; |
169 | $self->{time} = $::NOW; |
113 | |
170 | |
114 | # enter ourselves into various lists |
171 | weaken ($Coro::current->{conn} = $self); |
115 | weaken ($conn{$self->{remote_addr}}{$self*1} = $self); |
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116 | |
172 | |
117 | $::conns++; |
173 | $::conns++; |
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174 | $::maxconns = $::conns if $::conns > $::maxconns; |
118 | |
175 | |
119 | $self; |
176 | $self; |
120 | } |
177 | } |
121 | |
178 | |
122 | sub DESTROY { |
179 | sub DESTROY { |
123 | my $self = shift; |
180 | #my $self = shift; |
124 | |
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125 | $::conns--; |
181 | $::conns--; |
126 | |
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127 | $self->eoconn; |
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128 | delete $conn{$self->{remote_addr}}{$self*1}; |
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129 | } |
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130 | |
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131 | # end of connection |
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132 | sub eoconn { |
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133 | my $self = shift; |
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134 | delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1}; |
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135 | } |
182 | } |
136 | |
183 | |
137 | sub slog { |
184 | sub slog { |
138 | my $self = shift; |
185 | my $self = shift; |
139 | main::slog($_[0], "$self->{remote_addr}> $_[1]"); |
186 | main::slog($_[0], "$self->{remote_id}> $_[1]"); |
140 | } |
187 | } |
141 | |
188 | |
142 | sub response { |
189 | sub response { |
143 | my ($self, $code, $msg, $hdr, $content) = @_; |
190 | my ($self, $code, $msg, $hdr, $content) = @_; |
144 | my $res = "HTTP/1.1 $code $msg\015\012"; |
191 | my $res = "HTTP/1.1 $code $msg\015\012"; |
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192 | my $GZ = ""; |
145 | |
193 | |
146 | #$res .= "Connection: close\015\012"; |
194 | if (exists $hdr->{Connection}) { |
147 | $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( |
195 | if ($hdr->{Connection} =~ /close/) { |
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196 | $self->{h}{connection} = "close" |
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197 | } |
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198 | } else { |
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199 | if ($self->{version} < 1.1) { |
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200 | if ($self->{h}{connection} =~ /keep-alive/i) { |
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201 | $hdr->{Connection} = "Keep-Alive"; |
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202 | } else { |
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203 | $self->{h}{connection} = "close" |
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204 | } |
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205 | } |
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206 | } |
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207 | |
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208 | if ($self->{method} ne "HEAD" |
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209 | && $self->{h}{"accept-encoding"} =~ /\bgzip\b/ |
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210 | && 400 < length $content |
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211 | && $hdr->{"Content-Length"} == length $content |
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212 | && !exists $hdr->{"Content-Encoding"} |
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213 | ) { |
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214 | my $orig = length $content; |
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215 | $hdr->{"Content-Encoding"} = "gzip"; |
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216 | $content = Compress::Zlib::memGzip(\$content); |
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217 | $hdr->{"Content-Length"} = length $content; |
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218 | $GZ = sprintf "GZ%02d", 100 - 100*((length $content) / $orig); |
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219 | } |
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220 | |
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221 | $res .= "Date: $HTTP_NOW\015\012"; |
148 | |
222 | |
149 | while (my ($h, $v) = each %$hdr) { |
223 | while (my ($h, $v) = each %$hdr) { |
150 | $res .= "$h: $v\015\012" |
224 | $res .= "$h: $v\015\012" |
151 | } |
225 | } |
152 | $res .= "\015\012"; |
226 | $res .= "\015\012"; |
153 | |
227 | |
154 | $res .= $content if defined $content and $self->{method} ne "HEAD"; |
228 | $res .= $content if defined $content and $self->{method} ne "HEAD"; |
155 | |
229 | |
156 | print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n"; |
230 | my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW). |
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231 | " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}.$GZ. |
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232 | " \"$self->{h}{referer}\"\n"; |
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233 | |
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234 | print $::accesslog $log if $::accesslog; |
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235 | print STDERR $log; |
157 | |
236 | |
158 | $self->{written} += |
237 | $self->{written} += |
159 | print {$self->{fh}} $res; |
238 | print {$self->{fh}} $res; |
160 | } |
239 | } |
161 | |
240 | |
162 | sub err { |
241 | sub err { |
163 | my $self = shift; |
242 | my $self = shift; |
164 | my ($code, $msg, $hdr, $content) = @_; |
243 | my ($code, $msg, $hdr, $content) = @_; |
165 | |
244 | |
166 | unless (defined $content) { |
245 | unless (defined $content) { |
167 | $content = "$code $msg"; |
246 | $content = "$code $msg\n"; |
168 | $hdr->{"Content-Type"} = "text/plain"; |
247 | $hdr->{"Content-Type"} = "text/plain"; |
169 | $hdr->{"Content-Length"} = length $content; |
248 | $hdr->{"Content-Length"} = length $content; |
170 | } |
249 | } |
171 | $hdr->{"Connection"} = "close"; |
250 | $hdr->{"Connection"} = "close"; |
172 | |
251 | |
173 | $self->response($code, $msg, $hdr, $content); |
252 | $self->response($code, $msg, $hdr, $content); |
174 | |
253 | |
175 | die bless {}, err::; |
254 | die bless {}, err::; |
176 | } |
255 | } |
177 | |
256 | |
178 | sub err_blocked { |
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179 | my $self = shift; |
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180 | my $ip = $self->{remote_addr}; |
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181 | my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME; |
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182 | |
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183 | Coro::Event::do_timer(after => 20*rand); |
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184 | |
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185 | $self->err(401, "too many connections", |
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186 | { |
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187 | "Content-Type" => "text/html", |
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188 | "Retry-After" => $::BLOCKTIME, |
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189 | "Warning" => "Please do NOT retry, you have been blocked", |
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190 | "WWW-Authenticate" => "Basic realm=\"Please do NOT retry, you have been blocked\"", |
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191 | }, |
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192 | <<EOF); |
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193 | <html><p> |
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194 | You have been blocked because you opened too many connections. You |
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195 | may retry at</p> |
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196 | |
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197 | <p><blockquote>$time.</blockquote></p> |
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198 | |
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199 | <p>Until then, each new access will renew the block. You might want to have a |
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200 | look at the <a href="http://www.goof.com/pcg/marc/animefaq.html">FAQ</a>.</p> |
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201 | </html> |
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202 | EOF |
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203 | } |
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204 | |
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205 | sub handle { |
257 | sub handle { |
206 | my $self = shift; |
258 | my $self = shift; |
207 | my $fh = $self->{fh}; |
259 | my $fh = $self->{fh}; |
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260 | |
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261 | my $host; |
208 | |
262 | |
209 | $fh->timeout($::REQ_TIMEOUT); |
263 | $fh->timeout($::REQ_TIMEOUT); |
210 | while() { |
264 | while() { |
211 | $self->{reqs}++; |
265 | $self->{reqs}++; |
212 | |
266 | |
… | |
… | |
222 | } |
276 | } |
223 | |
277 | |
224 | $self->{h} = {}; |
278 | $self->{h} = {}; |
225 | |
279 | |
226 | $fh->timeout($::RES_TIMEOUT); |
280 | $fh->timeout($::RES_TIMEOUT); |
227 | my $ip = $self->{remote_addr}; |
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228 | |
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229 | if ($blocked{$ip}) { |
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230 | $self->err_blocked($blocked{$ip}) |
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231 | if $blocked{$ip} > $::NOW; |
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232 | |
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233 | delete $blocked{$ip}; |
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234 | } |
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235 | |
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236 | if (%{$conn{$ip}} > $::MAX_CONN_IP) { |
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237 | $self->slog(2, "blocked ip $ip"); |
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238 | $self->err_blocked; |
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239 | } |
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240 | |
281 | |
241 | $req =~ /^(?:\015\012)? |
282 | $req =~ /^(?:\015\012)? |
242 | (GET|HEAD) \040+ |
283 | (GET|HEAD) \040+ |
243 | ([^\040]+) \040+ |
284 | ([^\040]+) \040+ |
244 | HTTP\/([0-9]+\.[0-9]+) |
285 | HTTP\/([0-9]+\.[0-9]+) |
… | |
… | |
257 | my (%hdr, $h, $v); |
298 | my (%hdr, $h, $v); |
258 | |
299 | |
259 | $hdr{lc $1} .= ",$2" |
300 | $hdr{lc $1} .= ",$2" |
260 | while $req =~ /\G |
301 | while $req =~ /\G |
261 | ([^:\000-\040]+): |
302 | ([^:\000-\040]+): |
262 | [\008\040]* |
303 | [\010\040]* |
263 | ((?: [^\015\012]+ | \015\012[\008\040] )*) |
304 | ((?: [^\015\012]+ | \015\012[\010\040] )*) |
264 | \015\012 |
305 | \015\012 |
265 | /gxc; |
306 | /gxc; |
266 | |
307 | |
267 | $req =~ /\G\015\012$/ |
308 | $req =~ /\G\015\012$/ |
268 | or $self->err(400, "bad request"); |
309 | or $self->err(400, "bad request"); |
269 | |
310 | |
270 | $self->{h}{$h} = substr $v, 1 |
311 | $self->{h}{$h} = substr $v, 1 |
271 | while ($h, $v) = each %hdr; |
312 | while ($h, $v) = each %hdr; |
272 | } |
313 | } |
273 | |
314 | |
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315 | # remote id should be unique per user |
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316 | my $id = $self->{remote_addr}; |
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317 | |
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318 | if (exists $self->{h}{"client-ip"}) { |
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319 | $id .= "[".$self->{h}{"client-ip"}."]"; |
|
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320 | } elsif (exists $self->{h}{"x-forwarded-for"}) { |
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321 | $id .= "[".$self->{h}{"x-forwarded-for"}."]"; |
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322 | } |
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323 | |
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324 | $self->{remote_id} = $id; |
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325 | |
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326 | weaken (local $conn{$id}{$self*1} = $self); |
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327 | |
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328 | if ($blocked{$id}) { |
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329 | $self->err_blocked |
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330 | if $blocked{$id}[0] > $::NOW; |
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331 | |
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332 | delete $blocked{$id}; |
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333 | } |
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334 | |
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335 | # find out server name and port |
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336 | if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) { |
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337 | $host = $1; |
|
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338 | } else { |
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339 | $host = $self->{h}{host}; |
|
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340 | } |
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341 | |
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342 | if (defined $host) { |
274 | $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; |
343 | $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80; |
|
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344 | } else { |
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345 | ($self->{server_port}, $host) |
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346 | = unpack_sockaddr_in $self->{fh}->sockname |
|
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347 | or $self->err(500, "unable to get socket name"); |
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348 | $host = inet_ntoa $host; |
|
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349 | } |
275 | |
350 | |
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351 | $self->{server_name} = $host; |
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352 | |
276 | weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self); |
353 | weaken (local $uri{$id}{$self->{uri}}{$self*1} = $self); |
277 | |
354 | |
278 | eval { |
355 | eval { |
279 | $self->map_uri; |
356 | $self->map_uri; |
280 | $self->respond; |
357 | $self->respond; |
281 | }; |
358 | }; |
282 | |
359 | |
283 | $self->eoconn; |
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284 | |
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285 | die if $@ && !ref $@; |
360 | die if $@ && !ref $@; |
286 | |
361 | |
287 | last if $self->{h}{connection} =~ /close/ || $self->{version} lt "1.1"; |
362 | last if $self->{h}{connection} =~ /close/i; |
288 | |
363 | |
289 | $self->slog(9, "persistent connection [".$self->{h}{"user-agent"}."][$self->{reqs}]"); |
364 | $httpevent->broadcast; |
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365 | |
290 | $fh->timeout($::PER_TIMEOUT); |
366 | $fh->timeout($::PER_TIMEOUT); |
291 | } |
367 | } |
|
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368 | } |
|
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369 | |
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370 | sub block { |
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371 | my $self = shift; |
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372 | |
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373 | $blocked{$self->{remote_id}} = [$::NOW + $_[0], $_[1]]; |
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374 | $self->slog(2, "blocked ip $self->{remote_id}"); |
|
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375 | $self->err_blocked; |
292 | } |
376 | } |
293 | |
377 | |
294 | # uri => path mapping |
378 | # uri => path mapping |
295 | sub map_uri { |
379 | sub map_uri { |
296 | my $self = shift; |
380 | my $self = shift; |
297 | my $host = $self->{h}{host} || "default"; |
381 | my $host = $self->{server_name}; |
298 | my $uri = $self->{uri}; |
382 | my $uri = $self->{uri}; |
299 | |
383 | |
300 | # some massaging, also makes it more secure |
384 | # some massaging, also makes it more secure |
301 | $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; |
385 | $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; |
302 | $uri =~ s%//+%/%g; |
386 | $uri =~ s%//+%/%g; |
… | |
… | |
312 | $self->{path} = "$::DOCROOT/$host$uri"; |
396 | $self->{path} = "$::DOCROOT/$host$uri"; |
313 | |
397 | |
314 | $self->access_check; |
398 | $self->access_check; |
315 | } |
399 | } |
316 | |
400 | |
317 | sub server_address { |
|
|
318 | my $self = shift; |
|
|
319 | my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname |
|
|
320 | or $self->err(500, "unable to get socket name"); |
|
|
321 | ((inet_ntoa $iaddr), $port); |
|
|
322 | } |
|
|
323 | |
|
|
324 | sub server_host { |
|
|
325 | my $self = shift; |
|
|
326 | if (exists $self->{h}{host}) { |
|
|
327 | return $self->{h}{host}; |
|
|
328 | } else { |
|
|
329 | return (($self->server_address)[0]); |
|
|
330 | } |
|
|
331 | } |
|
|
332 | |
|
|
333 | sub server_hostport { |
|
|
334 | my $self = shift; |
|
|
335 | my ($host, $port); |
|
|
336 | if (exists $self->{h}{host}) { |
|
|
337 | ($host, $port) = ($self->{h}{host}, $self->{server_port}); |
|
|
338 | } else { |
|
|
339 | ($host, $port) = $self->server_address; |
|
|
340 | } |
|
|
341 | $port = $port == 80 ? "" : ":$port"; |
|
|
342 | $host.$port; |
|
|
343 | } |
|
|
344 | |
|
|
345 | sub _cgi { |
401 | sub _cgi { |
346 | my $self = shift; |
402 | my $self = shift; |
347 | my $path = shift; |
403 | my $path = shift; |
348 | my $fh; |
404 | my $fh; |
349 | |
405 | |
350 | # no two-way xxx supported |
406 | # no two-way xxx supported |
351 | if (0 == fork) { |
407 | if (0 == fork) { |
352 | open STDOUT, ">&".fileno($self->{fh}); |
408 | open STDOUT, ">&".fileno($self->{fh}); |
353 | if (chdir $::DOCROOT) { |
409 | if (chdir $::DOCROOT) { |
354 | $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike |
410 | $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike |
355 | $ENV{HTTP_HOST} = $self->server_host; |
411 | $ENV{HTTP_HOST} = $self->{server_name}; |
356 | $ENV{HTTP_PORT} = $self->{server_host}; |
412 | $ENV{HTTP_PORT} = $self->{server_port}; |
357 | $ENV{SCRIPT_NAME} = $self->{name}; |
413 | $ENV{SCRIPT_NAME} = $self->{name}; |
358 | exec $path; |
414 | exec $path; |
359 | } |
415 | } |
360 | Coro::State::_exit(0); |
416 | Coro::State::_exit(0); |
361 | } else { |
417 | } else { |
|
|
418 | die; |
362 | } |
419 | } |
|
|
420 | } |
|
|
421 | |
|
|
422 | sub server_hostport { |
|
|
423 | $_[0]{server_port} == 80 |
|
|
424 | ? $_[0]{server_name} |
|
|
425 | : "$_[0]{server_name}:$_[0]{server_port}"; |
363 | } |
426 | } |
364 | |
427 | |
365 | sub respond { |
428 | sub respond { |
366 | my $self = shift; |
429 | my $self = shift; |
367 | my $path = $self->{path}; |
430 | my $path = $self->{path}; |
368 | |
431 | |
369 | stat $path |
432 | if ($self->{name} =~ s%^/internal/([^/]+)%%) { |
370 | or $self->err(404, "not found"); |
433 | if ($::internal{$1}) { |
371 | |
434 | $::internal{$1}->($self); |
372 | $self->{stat} = [stat _]; |
|
|
373 | |
|
|
374 | # idiotic netscape sends idiotic headers AGAIN |
|
|
375 | my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ |
|
|
376 | ? str2time $1 : 0; |
|
|
377 | |
|
|
378 | if (-d _ && -r _) { |
|
|
379 | # directory |
|
|
380 | if ($path !~ /\/$/) { |
|
|
381 | # create a redirect to get the trailing "/" |
|
|
382 | my $host = $self->server_hostport; |
|
|
383 | $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); |
|
|
384 | } else { |
435 | } else { |
385 | $ims < $self->{stat}[9] |
436 | $self->err(404, "not found"); |
|
|
437 | } |
|
|
438 | } else { |
|
|
439 | |
|
|
440 | stat $path |
386 | or $self->err(304, "not modified"); |
441 | or $self->err(404, "not found"); |
387 | |
442 | |
388 | if (-r "$path/index.html") { |
443 | $self->{stat} = [stat _]; |
389 | $self->{path} .= "/index.html"; |
444 | |
390 | $self->handle_file; |
445 | # idiotic netscape sends idiotic headers AGAIN |
|
|
446 | my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ |
|
|
447 | ? str2time $1 : 0; |
|
|
448 | |
|
|
449 | if (-d _ && -r _) { |
|
|
450 | # directory |
|
|
451 | if ($path !~ /\/$/) { |
|
|
452 | # create a redirect to get the trailing "/" |
|
|
453 | # we don't try to avoid the :80 |
|
|
454 | $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" }); |
391 | } else { |
455 | } else { |
|
|
456 | $ims < $self->{stat}[9] |
|
|
457 | or $self->err(304, "not modified"); |
|
|
458 | |
|
|
459 | if (-r "$path/index.html") { |
|
|
460 | # replace directory "size" by index.html filesize |
|
|
461 | $self->{stat} = [stat ($self->{path} .= "/index.html")]; |
|
|
462 | $self->handle_file($queue_index); |
|
|
463 | } else { |
392 | $self->handle_dir; |
464 | $self->handle_dir; |
393 | } |
465 | } |
394 | } |
466 | } |
395 | } elsif (-f _ && -r _) { |
467 | } elsif (-f _ && -r _) { |
396 | -x _ and $self->err(403, "forbidden"); |
468 | -x _ and $self->err(403, "forbidden"); |
|
|
469 | |
|
|
470 | if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) { |
|
|
471 | my $timeout = $::NOW + 10; |
|
|
472 | while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) { |
|
|
473 | if ($timeout < $::NOW) { |
|
|
474 | $self->block($::BLOCKTIME, "too many connections"); |
|
|
475 | } else { |
|
|
476 | $httpevent->wait; |
|
|
477 | } |
|
|
478 | } |
|
|
479 | } |
|
|
480 | |
397 | $self->handle_file; |
481 | $self->handle_file($queue_file); |
398 | } else { |
482 | } else { |
399 | $self->err(404, "not found"); |
483 | $self->err(404, "not found"); |
|
|
484 | } |
400 | } |
485 | } |
401 | } |
486 | } |
402 | |
487 | |
403 | sub handle_dir { |
488 | sub handle_dir { |
404 | my $self = shift; |
489 | my $self = shift; |
… | |
… | |
406 | |
491 | |
407 | $self->response(200, "ok", |
492 | $self->response(200, "ok", |
408 | { |
493 | { |
409 | "Content-Type" => "text/html", |
494 | "Content-Type" => "text/html", |
410 | "Content-Length" => length $idx, |
495 | "Content-Length" => length $idx, |
|
|
496 | "Last-Modified" => time2str ($self->{stat}[9]), |
411 | }, |
497 | }, |
412 | $idx); |
498 | $idx); |
413 | } |
499 | } |
414 | |
500 | |
415 | sub handle_file { |
501 | sub handle_file { |
416 | my $self = shift; |
502 | my ($self, $queue) = @_; |
417 | my $length = -s _; |
503 | my $length = $self->{stat}[7]; |
418 | my $hdr = { |
504 | my $hdr = { |
419 | "Last-Modified" => time2str ((stat _)[9]), |
505 | "Last-Modified" => time2str ((stat _)[9]), |
420 | }; |
506 | }; |
421 | |
507 | |
422 | my @code = (200, "ok"); |
508 | my @code = (200, "ok"); |
… | |
… | |
434 | } |
520 | } |
435 | goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; |
521 | goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; |
436 | } |
522 | } |
437 | $hdr->{"Content-Range"} = "bytes */$length"; |
523 | $hdr->{"Content-Range"} = "bytes */$length"; |
438 | $hdr->{"Content-Length"} = $length; |
524 | $hdr->{"Content-Length"} = $length; |
439 | $self->slog(9, "not satisfiable($self->{h}{range}|".$self->{h}{"user-agent"}.")"); |
|
|
440 | $self->err(416, "not satisfiable", $hdr, ""); |
525 | $self->err(416, "not satisfiable", $hdr, ""); |
441 | |
526 | |
442 | satisfiable: |
527 | satisfiable: |
443 | # check for segmented downloads |
528 | # check for segmented downloads |
444 | if ($l && $::NO_SEGMENTED) { |
529 | if ($l && $::NO_SEGMENTED) { |
|
|
530 | my $timeout = $::NOW + 15; |
445 | if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) { |
531 | while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) { |
446 | $self->err(400, "segmented downloads are not allowed"); |
532 | if ($timeout <= $::NOW) { |
|
|
533 | $self->block($::BLOCKTIME, "segmented downloads are forbidden"); |
|
|
534 | #$self->err_segmented_download; |
|
|
535 | } else { |
|
|
536 | $httpevent->wait; |
|
|
537 | } |
447 | } |
538 | } |
448 | } |
539 | } |
449 | |
540 | |
450 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
541 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
451 | @code = (206, "partial content"); |
542 | @code = (206, "partial content"); |
… | |
… | |
461 | $hdr->{"Content-Length"} = $length; |
552 | $hdr->{"Content-Length"} = $length; |
462 | |
553 | |
463 | $self->response(@code, $hdr, ""); |
554 | $self->response(@code, $hdr, ""); |
464 | |
555 | |
465 | if ($self->{method} eq "GET") { |
556 | if ($self->{method} eq "GET") { |
|
|
557 | $self->{time} = $::NOW; |
|
|
558 | |
|
|
559 | my $current = $Coro::current; |
|
|
560 | |
466 | my ($fh, $buf, $r); |
561 | my ($fh, $buf, $r); |
467 | my $current = $Coro::current; |
562 | |
468 | open $fh, "<", $self->{path} |
563 | open $fh, "<", $self->{path} |
469 | or die "$self->{path}: late open failure ($!)"; |
564 | or die "$self->{path}: late open failure ($!)"; |
470 | |
565 | |
471 | $h -= $l - 1; |
566 | $h -= $l - 1; |
472 | |
567 | |
473 | if (0) { |
568 | if (0) { # !AIO |
474 | if ($l) { |
569 | if ($l) { |
475 | sysseek $fh, $l, 0; |
570 | sysseek $fh, $l, 0; |
476 | } |
571 | } |
477 | } |
572 | } |
|
|
573 | |
|
|
574 | my $transfer = $queue->start_transfer($h); |
|
|
575 | my $locked; |
|
|
576 | my $bufsize = $::WAIT_BUFSIZE; # initial buffer size |
478 | |
577 | |
479 | while ($h > 0) { |
578 | while ($h > 0) { |
|
|
579 | unless ($locked) { |
|
|
580 | if ($locked ||= $transfer->try($::WAIT_INTERVAL)) { |
|
|
581 | $bufsize = $::BUFSIZE; |
|
|
582 | $self->{time} = $::NOW; |
|
|
583 | } |
|
|
584 | } |
|
|
585 | |
|
|
586 | if ($blocked{$self->{remote_id}}) { |
|
|
587 | $self->{h}{connection} = "close"; |
|
|
588 | die bless {}, err::; |
|
|
589 | } |
|
|
590 | |
480 | if (0) { |
591 | if (0) { # !AIO |
481 | sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h |
592 | sysread $fh, $buf, $h > $bufsize ? $bufsize : $h |
482 | or last; |
593 | or last; |
483 | } else { |
594 | } else { |
484 | aio_read($fh, $l, ($h > $::BUFSIZE ? $::BUFSIZE : $h), |
595 | aio_read($fh, $l, ($h > $bufsize ? $bufsize : $h), |
485 | $buf, 0, sub { |
596 | $buf, 0, sub { |
486 | $r = $_[0]; |
597 | $r = $_[0]; |
487 | $current->ready; |
598 | Coro::ready($current); |
488 | }); |
599 | }); |
489 | &Coro::schedule; |
600 | &Coro::schedule; |
490 | last unless $r; |
601 | last unless $r; |
491 | } |
602 | } |
492 | my $w = $self->{fh}->syswrite($buf) |
603 | my $w = syswrite $self->{fh}, $buf |
493 | or last; |
604 | or last; |
494 | $::written += $w; |
605 | $::written += $w; |
495 | $self->{written} += $w; |
606 | $self->{written} += $w; |
496 | $l += $r; |
607 | $l += $r; |
497 | } |
608 | } |
498 | } |
|
|
499 | |
609 | |
500 | close $fh; |
610 | close $fh; |
|
|
611 | } |
501 | } |
612 | } |
502 | |
613 | |
503 | 1; |
614 | 1; |