1 | #!/usr/bin/perl |
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2 | |
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3 | use Coro; |
1 | use Coro; |
4 | use Coro::Semaphore; |
2 | use Coro::Semaphore; |
5 | use Coro::Event; |
3 | use Coro::Event; |
6 | use Coro::Socket; |
4 | use Coro::Socket; |
7 | |
5 | |
… | |
… | |
9 | use bytes; |
7 | use bytes; |
10 | |
8 | |
11 | # at least on my machine, this thingy serves files |
9 | # at least on my machine, this thingy serves files |
12 | # quite a bit faster than apache, ;) |
10 | # quite a bit faster than apache, ;) |
13 | # and quite a bit slower than thttpd :( |
11 | # and quite a bit slower than thttpd :( |
14 | |
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15 | my $port = new Coro::Socket |
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16 | LocalAddr => $SERVER_HOST, |
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17 | LocalPort => $SERVER_PORT, |
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18 | ReuseAddr => 1, |
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19 | Listen => 1, |
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20 | or die "unable to start server"; |
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21 | |
12 | |
22 | $SIG{PIPE} = 'IGNORE'; |
13 | $SIG{PIPE} = 'IGNORE'; |
23 | |
14 | |
24 | sub slog { |
15 | sub slog { |
25 | my $level = shift; |
16 | my $level = shift; |
… | |
… | |
27 | printf "---: $format\n", @_; |
18 | printf "---: $format\n", @_; |
28 | } |
19 | } |
29 | |
20 | |
30 | my $connections = new Coro::Semaphore $MAX_CONNECTS; |
21 | my $connections = new Coro::Semaphore $MAX_CONNECTS; |
31 | |
22 | |
32 | my @fh; |
23 | my @newcons; |
33 | my @pool; |
24 | my @pool; |
34 | |
25 | |
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26 | # one "execution thread" |
35 | sub handler { |
27 | sub handler { |
36 | while () { |
28 | while () { |
37 | my $fh = pop @fh; |
29 | my $new = pop @newcons; |
38 | if ($fh) { |
30 | if ($new) { |
39 | eval { |
31 | eval { |
40 | conn->new($fh)->handle; |
32 | conn->new(@$new)->handle; |
41 | }; |
33 | }; |
42 | close $fh; |
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43 | slog 1, "$@" if $@ && !ref $@; |
34 | slog 1, "$@" if $@ && !ref $@; |
44 | $connections->up; |
35 | $connections->up; |
45 | } else { |
36 | } else { |
46 | last if @pool >= $MAX_POOL; |
37 | last if @pool >= $MAX_POOL; |
47 | push @pool, $Coro::current; |
38 | push @pool, $Coro::current; |
48 | schedule; |
39 | schedule; |
49 | } |
40 | } |
50 | } |
41 | } |
51 | } |
42 | } |
52 | |
43 | |
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44 | my $http_port = new Coro::Socket |
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45 | LocalAddr => $SERVER_HOST, |
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46 | LocalPort => $SERVER_PORT, |
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47 | ReuseAddr => 1, |
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48 | Listen => 1, |
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49 | or die "unable to start server"; |
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50 | |
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51 | push @listen_sockets, $http_port; |
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52 | |
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53 | # the "main thread" |
53 | async { |
54 | async { |
54 | slog 1, "accepting connections"; |
55 | slog 1, "accepting connections"; |
55 | while () { |
56 | while () { |
56 | $connections->down; |
57 | $connections->down; |
57 | push @fh, $port->accept; |
58 | push @newcons, [$http_port->accept]; |
58 | #slog 3, "accepted @$connections ".scalar(@pool); |
59 | #slog 3, "accepted @$connections ".scalar(@pool); |
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60 | $::NOW = time; |
59 | if (@pool) { |
61 | if (@pool) { |
60 | (pop @pool)->ready; |
62 | (pop @pool)->ready; |
61 | } else { |
63 | } else { |
62 | async \&handler; |
64 | async \&handler; |
63 | } |
65 | } |
64 | |
66 | |
65 | } |
67 | } |
66 | }; |
68 | }; |
67 | |
69 | |
68 | loop; |
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69 | print "ende\n";#d# |
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70 | |
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71 | package conn; |
70 | package conn; |
72 | |
71 | |
73 | use Socket; |
72 | use Socket; |
74 | use HTTP::Date; |
73 | use HTTP::Date; |
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74 | use Convert::Scalar 'weaken'; |
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75 | |
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76 | our %conn; # $conn{ip}{fh} => connobj |
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77 | our %blocked; |
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78 | our %mimetype; |
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79 | |
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80 | sub read_mimetypes { |
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81 | local *M; |
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82 | if (open M, "<mime_types") { |
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83 | while (<M>) { |
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84 | if (/^([^#]\S+)\t+(\S+)$/) { |
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85 | $mimetype{lc $1} = $2; |
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86 | } |
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87 | } |
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88 | } else { |
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89 | print "cannot open mime_types\n"; |
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90 | } |
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91 | } |
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92 | |
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93 | read_mimetypes; |
75 | |
94 | |
76 | sub new { |
95 | sub new { |
77 | my $class = shift; |
96 | my $class = shift; |
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97 | my $peername = shift; |
78 | my $fh = shift; |
98 | my $fh = shift; |
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99 | my $self = bless { fh => $fh }, $class; |
79 | my (undef, $iaddr) = unpack_sockaddr_in $fh->getpeername |
100 | my (undef, $iaddr) = unpack_sockaddr_in $peername |
80 | or $self->err(500, "unable to get peername"); |
101 | or $self->err(500, "unable to decode peername"); |
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102 | |
81 | $self->{remote_address} = inet_ntoa $iaddr; |
103 | $self->{remote_addr} = inet_ntoa $iaddr; |
82 | bless { fh => $fh }, $class; |
104 | $self->{time} = $::NOW; |
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105 | |
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106 | # enter ourselves into various lists |
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107 | weaken ($conn{$self->{remote_addr}}{$self*1} = $self); |
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108 | |
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109 | $self; |
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110 | } |
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111 | |
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112 | sub DESTROY { |
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113 | my $self = shift; |
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114 | delete $conn{$self->{remote_addr}}{$self*1}; |
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115 | delete $uri{$self->{uri}}{$self*1}; |
83 | } |
116 | } |
84 | |
117 | |
85 | sub slog { |
118 | sub slog { |
86 | main::slog(@_); |
119 | my $self = shift; |
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120 | main::slog($_[0], "$self->{remote_addr}> $_[1]"); |
87 | } |
121 | } |
88 | |
122 | |
89 | sub print_response { |
123 | sub response { |
90 | my ($self, $code, $msg, $hdr, $content) = @_; |
124 | my ($self, $code, $msg, $hdr, $content) = @_; |
91 | my $res = "HTTP/1.0 $code $msg\015\012"; |
125 | my $res = "HTTP/1.0 $code $msg\015\012"; |
92 | |
126 | |
93 | $hdr->{Date} = time2str time; # slow? nah. |
127 | $res .= "Connection: close\015\012"; |
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128 | $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( |
94 | |
129 | |
95 | while (my ($h, $v) = each %$hdr) { |
130 | while (my ($h, $v) = each %$hdr) { |
96 | $res .= "$h: $v\015\012" |
131 | $res .= "$h: $v\015\012" |
97 | } |
132 | } |
98 | $res .= "\015\012$content" if defined $content; |
133 | $res .= "\015\012"; |
99 | |
134 | |
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135 | $res .= $content if defined $content and $self->{method} eq "GET"; |
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136 | |
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137 | print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d# |
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138 | |
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139 | $self->{written} += |
100 | print {$self->{fh}} $res; |
140 | print {$self->{fh}} $res; |
101 | } |
141 | } |
102 | |
142 | |
103 | sub err { |
143 | sub err { |
104 | my $self = shift; |
144 | my $self = shift; |
105 | my ($code, $msg, $hdr, $content) = @_; |
145 | my ($code, $msg, $hdr, $content) = @_; |
… | |
… | |
108 | $content = "$code $msg"; |
148 | $content = "$code $msg"; |
109 | $hdr->{"Content-Type"} = "text/plain"; |
149 | $hdr->{"Content-Type"} = "text/plain"; |
110 | $hdr->{"Content-Length"} = length $content; |
150 | $hdr->{"Content-Length"} = length $content; |
111 | } |
151 | } |
112 | |
152 | |
113 | $self->slog($msg) if $code; |
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114 | |
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115 | $self->print_response($code, $msg, $hdr, $content); |
153 | $self->response($code, $msg, $hdr, $content); |
116 | |
154 | |
117 | die bless {}, err::; |
155 | die bless {}, err::; |
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156 | } |
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157 | |
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158 | sub err_blocked { |
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159 | my $self = shift; |
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160 | my $ip = $self->{remote_addr}; |
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161 | my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME; |
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162 | |
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163 | Coro::Event::do_timer(after => 5); |
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164 | |
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165 | $self->err(403, "too many connections", |
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166 | { |
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167 | "Content-Type" => "text/html", |
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168 | "Retry-After" => $::BLOCKTIME |
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169 | }, |
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170 | <<EOF); |
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171 | <html><p> |
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172 | You have been blocked because you opened too many connections. You |
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173 | may retry at</p> |
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174 | |
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175 | <p><blockquote>$time.</blockquote></p> |
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176 | |
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177 | <p>Until then, each new access will renew the block. You might want to have a |
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178 | look at the <a href="http://www.goof.com/pcg/marc/animefaq.html">FAQ</a>.</p> |
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179 | </html> |
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180 | EOF |
118 | } |
181 | } |
119 | |
182 | |
120 | sub handle { |
183 | sub handle { |
121 | my $self = shift; |
184 | my $self = shift; |
122 | my $fh = $self->{fh}; |
185 | my $fh = $self->{fh}; |
… | |
… | |
129 | my $req = $fh->readline("\015\012\015\012"); |
192 | my $req = $fh->readline("\015\012\015\012"); |
130 | $fh->timeout($::RES_TIMEOUT); |
193 | $fh->timeout($::RES_TIMEOUT); |
131 | |
194 | |
132 | defined $req or |
195 | defined $req or |
133 | $self->err(408, "request timeout"); |
196 | $self->err(408, "request timeout"); |
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197 | |
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198 | my $ip = $self->{remote_addr}; |
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199 | |
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200 | if ($blocked{$ip}) { |
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201 | $self->err_blocked($blocked{$ip}) |
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202 | if $blocked{$ip} > $::NOW; |
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203 | |
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204 | delete $blocked{$ip}; |
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205 | } |
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206 | |
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207 | if (%{$conn{$ip}} > $::MAX_CONN_IP) { |
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208 | $self->slog(2, "blocked ip $ip"); |
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209 | $self->err_blocked; |
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210 | } |
134 | |
211 | |
135 | $req =~ /^(?:\015\012)? |
212 | $req =~ /^(?:\015\012)? |
136 | (GET|HEAD) \040+ |
213 | (GET|HEAD) \040+ |
137 | ([^\040]+) \040+ |
214 | ([^\040]+) \040+ |
138 | HTTP\/([0-9]+\.[0-9]+) |
215 | HTTP\/([0-9]+\.[0-9]+) |
… | |
… | |
164 | while ($h, $v) = each %hdr; |
241 | while ($h, $v) = each %hdr; |
165 | } |
242 | } |
166 | |
243 | |
167 | $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; |
244 | $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; |
168 | |
245 | |
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246 | weaken ($uri{$self->{uri}}{$self*1} = $self); |
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247 | |
169 | $self->map_uri; |
248 | $self->map_uri; |
170 | $self->respond; |
249 | $self->respond; |
171 | #} |
250 | #} |
172 | } |
251 | } |
173 | |
252 | |
… | |
… | |
188 | |
267 | |
189 | $self->{name} = $uri; |
268 | $self->{name} = $uri; |
190 | |
269 | |
191 | # now do the path mapping |
270 | # now do the path mapping |
192 | $self->{path} = "$::DOCROOT/$host$uri"; |
271 | $self->{path} = "$::DOCROOT/$host$uri"; |
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272 | |
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273 | $self->access_check; |
193 | } |
274 | } |
194 | |
275 | |
195 | sub server_address { |
276 | sub server_address { |
196 | my $self = shift; |
277 | my $self = shift; |
197 | my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname |
278 | my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname |
… | |
… | |
231 | if (chdir $::DOCROOT) { |
312 | if (chdir $::DOCROOT) { |
232 | $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike |
313 | $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike |
233 | $ENV{HTTP_HOST} = $self->server_host; |
314 | $ENV{HTTP_HOST} = $self->server_host; |
234 | $ENV{HTTP_PORT} = $self->{server_host}; |
315 | $ENV{HTTP_PORT} = $self->{server_host}; |
235 | $ENV{SCRIPT_NAME} = $self->{name}; |
316 | $ENV{SCRIPT_NAME} = $self->{name}; |
236 | exec $::INDEXPROG; |
317 | exec $path; |
237 | } |
318 | } |
238 | Coro::State::_exit(0); |
319 | Coro::State::_exit(0); |
239 | } else { |
320 | } else { |
240 | } |
321 | } |
241 | } |
322 | } |
… | |
… | |
244 | my $self = shift; |
325 | my $self = shift; |
245 | my $path = $self->{path}; |
326 | my $path = $self->{path}; |
246 | |
327 | |
247 | stat $path |
328 | stat $path |
248 | or $self->err(404, "not found"); |
329 | or $self->err(404, "not found"); |
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330 | |
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331 | $self->{stat} = [stat _]; |
249 | |
332 | |
250 | # idiotic netscape sends idiotic headers AGAIN |
333 | # idiotic netscape sends idiotic headers AGAIN |
251 | my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ |
334 | my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ |
252 | ? str2time $1 : 0; |
335 | ? str2time $1 : 0; |
253 | |
336 | |
… | |
… | |
256 | if ($path !~ /\/$/) { |
339 | if ($path !~ /\/$/) { |
257 | # create a redirect to get the trailing "/" |
340 | # create a redirect to get the trailing "/" |
258 | my $host = $self->server_hostport; |
341 | my $host = $self->server_hostport; |
259 | $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); |
342 | $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); |
260 | } else { |
343 | } else { |
261 | $ims < (stat _)[9] |
344 | $ims < $self->{stat}[9] |
262 | or $self->err(304, "not modified"); |
345 | or $self->err(304, "not modified"); |
263 | |
346 | |
264 | if ($self->{method} eq "GET") { |
347 | if ($self->{method} eq "GET") { |
265 | if (-r "$path/index.html") { |
348 | if (-r "$path/index.html") { |
266 | $self->{path} .= "/index.html"; |
349 | $self->{path} .= "/index.html"; |
… | |
… | |
278 | } |
361 | } |
279 | } |
362 | } |
280 | |
363 | |
281 | sub handle_dir { |
364 | sub handle_dir { |
282 | my $self = shift; |
365 | my $self = shift; |
283 | $self->_cgi($::INDEXPROG); |
366 | my $idx = $self->diridx; |
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367 | |
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368 | $self->response(200, "ok", |
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369 | { |
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370 | "Content-Type" => "text/html", |
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371 | "Content-Length" => length $idx, |
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372 | }, |
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373 | $idx); |
284 | } |
374 | } |
285 | |
375 | |
286 | sub handle_file { |
376 | sub handle_file { |
287 | my $self = shift; |
377 | my $self = shift; |
288 | my $length = -s _; |
378 | my $length = -s _; |
… | |
… | |
307 | } |
397 | } |
308 | $hdr->{"Content-Range"} = "bytes */$length"; |
398 | $hdr->{"Content-Range"} = "bytes */$length"; |
309 | $self->err(416, "not satisfiable", $hdr); |
399 | $self->err(416, "not satisfiable", $hdr); |
310 | |
400 | |
311 | satisfiable: |
401 | satisfiable: |
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402 | # check for segmented downloads |
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403 | if ($l && $::NO_SEGMENTED) { |
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404 | if (%{$uri{$self->{uri}}} > 1) { |
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405 | $self->err(400, "segmented downloads are not allowed"); |
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406 | } |
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407 | } |
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408 | |
312 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
409 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
313 | @code = (206, "partial content"); |
410 | @code = (206, "partial content"); |
314 | $length = $h - $l + 1; |
411 | $length = $h - $l + 1; |
315 | |
412 | |
316 | ignore: |
413 | ignore: |
317 | } else { |
414 | } else { |
318 | ($l, $h) = (0, $length - 1); |
415 | ($l, $h) = (0, $length - 1); |
319 | } |
416 | } |
320 | |
417 | |
321 | if ($self->{path} =~ /\.html$/) { |
418 | $self->{path} =~ /\.([^.]+)$/; |
322 | $hdr->{"Content-Type"} = "text/html"; |
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323 | } else { |
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324 | $hdr->{"Content-Type"} = "application/octet-stream"; |
419 | $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream"; |
325 | } |
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326 | |
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327 | $hdr->{"Content-Length"} = $length; |
420 | $hdr->{"Content-Length"} = $length; |
328 | |
421 | |
329 | $self->print_response(@code, $hdr, ""); |
422 | $self->response(@code, $hdr, ""); |
330 | |
423 | |
331 | if ($self->{method} eq "GET") { |
424 | if ($self->{method} eq "GET") { |
332 | my ($fh, $buf); |
425 | my ($fh, $buf); |
333 | open $fh, "<", $self->{path} |
426 | open $fh, "<", $self->{path} |
334 | or die "$self->{path}: late open failure ($!)"; |
427 | or die "$self->{path}: late open failure ($!)"; |
… | |
… | |
339 | } |
432 | } |
340 | |
433 | |
341 | $h -= $l - 1; |
434 | $h -= $l - 1; |
342 | |
435 | |
343 | while ($h > 0) { |
436 | while ($h > 0) { |
344 | $h -= sysread $fh, $buf, $h > 4096 ? 4096 : $h; |
437 | $h -= sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h; |
345 | print {$self->{fh}} $buf |
438 | my $w = $self->{fh}->syswrite($buf) |
346 | or last; |
439 | or last; |
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440 | $::written += $w; |
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441 | $self->{written} += $w; |
347 | } |
442 | } |
348 | } |
443 | } |
349 | |
444 | |
350 | close $fh; |
445 | close $fh; |
351 | } |
446 | } |
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447 | |
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448 | 1; |