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 | our $errorlog; |
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21 | |
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22 | our $NOW; |
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23 | our $HTTP_NOW; |
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24 | |
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25 | Event->timer(interval => 1, hard => 1, cb => sub { |
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26 | $NOW = time; |
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27 | $HTTP_NOW = time2str $NOW; |
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28 | })->now; |
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29 | |
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30 | if ($ERROR_LOG) { |
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31 | use IO::Handle; |
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32 | open $errorlog, ">>$ERROR_LOG" |
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33 | or die "$ERROR_LOG: $!"; |
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34 | $errorlog->autoflush(1); |
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35 | } |
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36 | |
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37 | if ($ACCESS_LOG) { |
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38 | use IO::Handle; |
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39 | open $accesslog, ">>$ACCESS_LOG" |
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40 | or die "$ACCESS_LOG: $!"; |
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41 | $accesslog->autoflush(1); |
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42 | } |
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43 | |
15 | sub slog { |
44 | sub slog { |
16 | my $level = shift; |
45 | my $level = shift; |
17 | my $format = shift; |
46 | my $format = shift; |
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47 | my $NOW = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $::NOW); |
18 | printf "---: $format\n", @_; |
48 | printf "$NOW: $format\n", @_; |
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49 | printf $errorlog "$NOW: $format\n", @_ if $errorlog; |
19 | } |
50 | } |
20 | |
51 | |
21 | my $connections = new Coro::Semaphore $MAX_CONNECTS; |
52 | our $connections = new Coro::Semaphore $MAX_CONNECTS || 250; |
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53 | our $httpevent = new Coro::Signal; |
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54 | |
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55 | our $queue_file = new transferqueue slots => $MAX_TRANSFERS, maxsize => 256*1024*1024; |
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56 | our $queue_index = new transferqueue slots => 10; |
22 | |
57 | |
23 | my @newcons; |
58 | my @newcons; |
24 | my @pool; |
59 | my @pool; |
25 | |
60 | |
26 | # one "execution thread" |
61 | # one "execution thread" |
27 | sub handler { |
62 | sub handler { |
28 | while () { |
63 | while () { |
29 | my $new = pop @newcons; |
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30 | if ($new) { |
64 | if (@newcons) { |
31 | eval { |
65 | eval { |
32 | conn->new(@$new)->handle; |
66 | conn->new(@{pop @newcons})->handle; |
33 | }; |
67 | }; |
34 | slog 1, "$@" if $@ && !ref $@; |
68 | slog 1, "$@" if $@ && !ref $@; |
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69 | |
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70 | $httpevent->broadcast; # only for testing, but doesn't matter much |
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71 | |
35 | $connections->up; |
72 | $connections->up; |
36 | } else { |
73 | } else { |
37 | last if @pool >= $MAX_POOL; |
74 | last if @pool >= $MAX_POOL; |
38 | push @pool, $Coro::current; |
75 | push @pool, $Coro::current; |
39 | schedule; |
76 | schedule; |
40 | } |
77 | } |
41 | } |
78 | } |
42 | } |
79 | } |
43 | |
80 | |
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81 | sub listen_on { |
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82 | my $listen = $_[0]; |
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83 | |
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84 | push @listen_sockets, $listen; |
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85 | |
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86 | # the "main thread" |
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87 | async { |
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88 | slog 1, "accepting connections"; |
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89 | while () { |
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90 | $connections->down; |
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91 | push @newcons, [$listen->accept]; |
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92 | #slog 3, "accepted @$connections ".scalar(@pool); |
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93 | if (@pool) { |
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94 | (pop @pool)->ready; |
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95 | } else { |
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96 | async \&handler; |
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97 | } |
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98 | |
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99 | } |
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100 | }; |
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101 | } |
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102 | |
44 | my $http_port = new Coro::Socket |
103 | my $http_port = new Coro::Socket |
45 | LocalAddr => $SERVER_HOST, |
104 | LocalAddr => $SERVER_HOST, |
46 | LocalPort => $SERVER_PORT, |
105 | LocalPort => $SERVER_PORT, |
47 | ReuseAddr => 1, |
106 | ReuseAddr => 1, |
48 | Listen => 1, |
107 | Listen => 50, |
49 | or die "unable to start server"; |
108 | or die "unable to start server"; |
50 | |
109 | |
51 | push @listen_sockets, $http_port; |
110 | listen_on $http_port; |
52 | |
111 | |
53 | # the "main thread" |
112 | if ($SERVER_PORT2) { |
54 | async { |
113 | my $http_port = new Coro::Socket |
55 | slog 1, "accepting connections"; |
114 | LocalAddr => $SERVER_HOST, |
56 | while () { |
115 | LocalPort => $SERVER_PORT2, |
57 | $connections->down; |
116 | ReuseAddr => 1, |
58 | push @newcons, [$http_port->accept]; |
117 | Listen => 50, |
59 | #slog 3, "accepted @$connections ".scalar(@pool); |
118 | 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 | |
119 | |
67 | } |
120 | listen_on $http_port; |
68 | }; |
121 | } |
69 | |
122 | |
70 | package conn; |
123 | package conn; |
71 | |
124 | |
72 | use Socket; |
125 | use Socket; |
73 | use HTTP::Date; |
126 | use HTTP::Date; |
74 | use Convert::Scalar 'weaken'; |
127 | use Convert::Scalar 'weaken'; |
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128 | use Linux::AIO; |
75 | |
129 | |
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130 | Linux::AIO::min_parallel $::AIO_PARALLEL; |
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131 | |
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132 | Event->io(fd => Linux::AIO::poll_fileno, |
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133 | poll => 'r', async => 1, |
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134 | cb => \&Linux::AIO::poll_cb); |
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135 | |
76 | our %conn; # $conn{ip}{fh} => connobj |
136 | our %conn; # $conn{ip}{self} => connobj |
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137 | our %uri; # $uri{ip}{uri}{self} |
77 | our %blocked; |
138 | our %blocked; |
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139 | our %mimetype; |
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140 | |
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141 | sub read_mimetypes { |
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142 | local *M; |
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143 | if (open M, "<mime_types") { |
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144 | while (<M>) { |
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145 | if (/^([^#]\S+)\t+(\S+)$/) { |
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146 | $mimetype{lc $1} = $2; |
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147 | } |
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148 | } |
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149 | } else { |
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150 | print "cannot open mime_types\n"; |
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151 | } |
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152 | } |
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153 | |
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154 | read_mimetypes; |
78 | |
155 | |
79 | sub new { |
156 | sub new { |
80 | my $class = shift; |
157 | my $class = shift; |
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158 | my $fh = shift; |
81 | my $peername = shift; |
159 | my $peername = shift; |
82 | my $fh = shift; |
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83 | my $self = bless { fh => $fh }, $class; |
160 | my $self = bless { fh => $fh }, $class; |
84 | my (undef, $iaddr) = unpack_sockaddr_in $peername |
161 | my (undef, $iaddr) = unpack_sockaddr_in $peername |
85 | or $self->err(500, "unable to decode peername"); |
162 | or $self->err(500, "unable to decode peername"); |
86 | |
163 | |
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164 | $self->{remote_addr} = |
87 | $self->{remote_addr} = inet_ntoa $iaddr; |
165 | $self->{remote_id} = inet_ntoa $iaddr; |
88 | |
166 | |
89 | # enter ourselves into various lists |
167 | $self->{time} = $::NOW; |
90 | weaken ($conn{$self->{remote_addr}}{$self*1} = $self); |
168 | |
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169 | weaken ($Coro::current->{conn} = $self); |
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170 | |
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171 | $::conns++; |
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172 | $::maxconns = $::conns if $::conns > $::maxconns; |
91 | |
173 | |
92 | $self; |
174 | $self; |
93 | } |
175 | } |
94 | |
176 | |
95 | sub DESTROY { |
177 | sub DESTROY { |
96 | my $self = shift; |
178 | #my $self = shift; |
97 | delete $conn{$self->{remote_addr}}{$self*1}; |
179 | $::conns--; |
98 | delete $uri{$self->{uri}}{$self*1}; |
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99 | } |
180 | } |
100 | |
181 | |
101 | sub slog { |
182 | sub slog { |
102 | my $self = shift; |
183 | my $self = shift; |
103 | main::slog($_[0], "$self->{remote_addr}> $_[1]"); |
184 | main::slog($_[0], "$self->{remote_id}> $_[1]"); |
104 | } |
185 | } |
105 | |
186 | |
106 | sub response { |
187 | sub response { |
107 | my ($self, $code, $msg, $hdr, $content) = @_; |
188 | my ($self, $code, $msg, $hdr, $content) = @_; |
108 | my $res = "HTTP/1.0 $code $msg\015\012"; |
189 | my $res = "HTTP/1.1 $code $msg\015\012"; |
109 | |
190 | |
110 | $res .= "Connection: close\015\012"; |
191 | if (exists $hdr->{Connection}) { |
111 | $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( |
192 | if ($hdr->{Connection} =~ /close/) { |
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193 | $self->{h}{connection} = "close" |
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194 | } |
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195 | } else { |
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196 | if ($self->{version} < 1.1) { |
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197 | if ($self->{h}{connection} =~ /keep-alive/i) { |
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198 | $hdr->{Connection} = "Keep-Alive"; |
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199 | } else { |
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200 | $self->{h}{connection} = "close" |
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201 | } |
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202 | } |
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203 | } |
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204 | |
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205 | $res .= "Date: $HTTP_NOW\015\012"; |
112 | |
206 | |
113 | while (my ($h, $v) = each %$hdr) { |
207 | while (my ($h, $v) = each %$hdr) { |
114 | $res .= "$h: $v\015\012" |
208 | $res .= "$h: $v\015\012" |
115 | } |
209 | } |
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210 | $res .= "\015\012"; |
116 | |
211 | |
117 | $res .= "\015\012$content" if defined $content; |
212 | $res .= $content if defined $content and $self->{method} ne "HEAD"; |
118 | |
213 | |
119 | print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d# |
214 | my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $NOW). |
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215 | " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}. |
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216 | " \"$self->{h}{referer}\"\n"; |
120 | |
217 | |
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218 | print $accesslog $log if $accesslog; |
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219 | print STDERR $log; |
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220 | |
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221 | $self->{written} += |
121 | print {$self->{fh}} $res; |
222 | print {$self->{fh}} $res; |
122 | } |
223 | } |
123 | |
224 | |
124 | sub err { |
225 | sub err { |
125 | my $self = shift; |
226 | my $self = shift; |
126 | my ($code, $msg, $hdr, $content) = @_; |
227 | my ($code, $msg, $hdr, $content) = @_; |
127 | |
228 | |
128 | unless (defined $content) { |
229 | unless (defined $content) { |
129 | $content = "$code $msg"; |
230 | $content = "$code $msg\n"; |
130 | $hdr->{"Content-Type"} = "text/plain"; |
231 | $hdr->{"Content-Type"} = "text/plain"; |
131 | $hdr->{"Content-Length"} = length $content; |
232 | $hdr->{"Content-Length"} = length $content; |
132 | } |
233 | } |
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234 | $hdr->{"Connection"} = "close"; |
133 | |
235 | |
134 | $self->response($code, $msg, $hdr, $content); |
236 | $self->response($code, $msg, $hdr, $content); |
135 | |
237 | |
136 | die bless {}, err::; |
238 | die bless {}, err::; |
137 | } |
239 | } |
138 | |
240 | |
139 | sub err_blocked { |
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140 | my $self = shift; |
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141 | my $ip = $self->{remote_addr}; |
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142 | my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME; |
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143 | $self->err(403, "too many connections", |
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144 | { |
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145 | "Content-Type" => "text/html", |
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146 | "Retry-After" => $::BLOCKTIME |
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147 | }, |
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148 | <<EOF); |
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149 | <html><p> |
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150 | You have been blocked because you opened too many connections. You |
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151 | may retry at</p> |
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152 | |
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153 | <p><blockquote>$time.</blockquote></p> |
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154 | |
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155 | <p>Until then, each new access will renew the block. You might want to have a |
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156 | look at the <a href="http://www.goof.com/pcg/marc/animefaq.html">FAQ</a>.</p> |
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157 | </html> |
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158 | EOF |
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159 | } |
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160 | |
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161 | sub handle { |
241 | sub handle { |
162 | my $self = shift; |
242 | my $self = shift; |
163 | my $fh = $self->{fh}; |
243 | my $fh = $self->{fh}; |
164 | |
244 | |
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245 | my $host; |
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246 | |
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247 | $fh->timeout($::REQ_TIMEOUT); |
165 | #while() { |
248 | while() { |
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249 | $self->{reqs}++; |
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250 | |
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251 | # read request and parse first line |
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252 | my $req = $fh->readline("\015\012\015\012"); |
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253 | |
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254 | unless (defined $req) { |
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255 | if (exists $self->{version}) { |
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256 | last; |
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257 | } else { |
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258 | $self->err(408, "request timeout"); |
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259 | } |
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260 | } |
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261 | |
166 | $self->{h} = {}; |
262 | $self->{h} = {}; |
167 | |
263 | |
168 | # read request and parse first line |
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169 | $fh->timeout($::REQ_TIMEOUT); |
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170 | my $req = $fh->readline("\015\012\015\012"); |
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171 | $fh->timeout($::RES_TIMEOUT); |
264 | $fh->timeout($::RES_TIMEOUT); |
172 | |
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173 | defined $req or |
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174 | $self->err(408, "request timeout"); |
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175 | |
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176 | my $ip = $self->{remote_addr}; |
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177 | |
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178 | if ($blocked{$ip}) { |
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179 | $self->err_blocked($blocked{$ip}) |
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180 | if $blocked{$ip} > $::NOW; |
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181 | |
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182 | delete $blocked{$ip}; |
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183 | } |
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184 | |
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185 | if (%{$conn{$ip}} > $::MAX_CONN_IP) { |
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186 | $self->slog("blocked ip $ip"); |
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187 | $self->err_blocked; |
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188 | } |
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189 | |
265 | |
190 | $req =~ /^(?:\015\012)? |
266 | $req =~ /^(?:\015\012)? |
191 | (GET|HEAD) \040+ |
267 | (GET|HEAD) \040+ |
192 | ([^\040]+) \040+ |
268 | ([^\040]+) \040+ |
193 | HTTP\/([0-9]+\.[0-9]+) |
269 | HTTP\/([0-9]+\.[0-9]+) |
194 | \015\012/gx |
270 | \015\012/gx |
195 | or $self->err(403, "method not allowed", { Allow => "GET,HEAD" }); |
271 | or $self->err(405, "method not allowed", { Allow => "GET,HEAD" }); |
196 | |
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197 | $2 ne "1.0" |
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198 | or $self->err(506, "http protocol version not supported"); |
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199 | |
272 | |
200 | $self->{method} = $1; |
273 | $self->{method} = $1; |
201 | $self->{uri} = $2; |
274 | $self->{uri} = $2; |
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275 | $self->{version} = $3; |
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276 | |
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277 | $3 =~ /^1\./ |
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278 | or $self->err(506, "http protocol version $3 not supported"); |
202 | |
279 | |
203 | # parse headers |
280 | # parse headers |
204 | { |
281 | { |
205 | my (%hdr, $h, $v); |
282 | my (%hdr, $h, $v); |
206 | |
283 | |
… | |
… | |
217 | |
294 | |
218 | $self->{h}{$h} = substr $v, 1 |
295 | $self->{h}{$h} = substr $v, 1 |
219 | while ($h, $v) = each %hdr; |
296 | while ($h, $v) = each %hdr; |
220 | } |
297 | } |
221 | |
298 | |
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299 | # remote id should be unique per user |
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300 | my $id = $self->{remote_addr}; |
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301 | |
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302 | if (exists $self->{h}{"client-ip"}) { |
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303 | $id .= "[".$self->{h}{"client-ip"}."]"; |
|
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304 | } elsif (exists $self->{h}{"x-forwarded-for"}) { |
|
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305 | $id .= "[".$self->{h}{"x-forwarded-for"}."]"; |
|
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306 | } |
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307 | |
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308 | $self->{remote_id} = $id; |
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309 | |
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310 | weaken (local $conn{$id}{$self*1} = $self); |
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311 | |
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312 | if ($blocked{$id}) { |
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313 | $self->err_blocked |
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314 | if $blocked{$id}[0] > $::NOW; |
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315 | |
|
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316 | delete $blocked{$id}; |
|
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317 | } |
|
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318 | |
|
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319 | # find out server name and port |
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320 | if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) { |
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321 | $host = $1; |
|
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322 | } else { |
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323 | $host = $self->{h}{host}; |
|
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324 | } |
|
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325 | |
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326 | if (defined $host) { |
222 | $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; |
327 | $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80; |
|
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328 | } else { |
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329 | ($self->{server_port}, $host) |
|
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330 | = unpack_sockaddr_in $self->{fh}->sockname |
|
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331 | or $self->err(500, "unable to get socket name"); |
|
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332 | $host = inet_ntoa $host; |
|
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333 | } |
223 | |
334 | |
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335 | $self->{server_name} = $host; |
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336 | |
224 | weaken ($uri{$self->{uri}}{$self*1} = $self); |
337 | weaken (local $uri{$id}{$self->{uri}}{$self*1} = $self); |
225 | |
338 | |
|
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339 | eval { |
226 | $self->map_uri; |
340 | $self->map_uri; |
227 | $self->respond; |
341 | $self->respond; |
|
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342 | }; |
|
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343 | |
|
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344 | die if $@ && !ref $@; |
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345 | |
|
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346 | last if $self->{h}{connection} =~ /close/i; |
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347 | |
|
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348 | $httpevent->broadcast; |
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349 | |
|
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350 | $fh->timeout($::PER_TIMEOUT); |
228 | #} |
351 | } |
|
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352 | } |
|
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353 | |
|
|
354 | sub block { |
|
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355 | my $self = shift; |
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356 | |
|
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357 | $blocked{$self->{remote_id}} = [$::NOW + $_[0], $_[1]]; |
|
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358 | $self->slog(2, "blocked ip $self->{remote_id}"); |
|
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359 | $self->err_blocked; |
229 | } |
360 | } |
230 | |
361 | |
231 | # uri => path mapping |
362 | # uri => path mapping |
232 | sub map_uri { |
363 | sub map_uri { |
233 | my $self = shift; |
364 | my $self = shift; |
234 | my $host = $self->{h}{host} || "default"; |
365 | my $host = $self->{server_name}; |
235 | my $uri = $self->{uri}; |
366 | my $uri = $self->{uri}; |
236 | |
367 | |
237 | # some massaging, also makes it more secure |
368 | # some massaging, also makes it more secure |
238 | $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; |
369 | $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; |
239 | $uri =~ s%//+%/%g; |
370 | $uri =~ s%//+%/%g; |
… | |
… | |
249 | $self->{path} = "$::DOCROOT/$host$uri"; |
380 | $self->{path} = "$::DOCROOT/$host$uri"; |
250 | |
381 | |
251 | $self->access_check; |
382 | $self->access_check; |
252 | } |
383 | } |
253 | |
384 | |
254 | sub server_address { |
|
|
255 | my $self = shift; |
|
|
256 | my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname |
|
|
257 | or $self->err(500, "unable to get socket name"); |
|
|
258 | ((inet_ntoa $iaddr), $port); |
|
|
259 | } |
|
|
260 | |
|
|
261 | sub server_host { |
|
|
262 | my $self = shift; |
|
|
263 | if (exists $self->{h}{host}) { |
|
|
264 | return $self->{h}{host}; |
|
|
265 | } else { |
|
|
266 | return (($self->server_address)[0]); |
|
|
267 | } |
|
|
268 | } |
|
|
269 | |
|
|
270 | sub server_hostport { |
|
|
271 | my $self = shift; |
|
|
272 | my ($host, $port); |
|
|
273 | if (exists $self->{h}{host}) { |
|
|
274 | ($host, $port) = ($self->{h}{host}, $self->{server_port}); |
|
|
275 | } else { |
|
|
276 | ($host, $port) = $self->server_address; |
|
|
277 | } |
|
|
278 | $port = $port == 80 ? "" : ":$port"; |
|
|
279 | $host.$port; |
|
|
280 | } |
|
|
281 | |
|
|
282 | sub _cgi { |
385 | sub _cgi { |
283 | my $self = shift; |
386 | my $self = shift; |
284 | my $path = shift; |
387 | my $path = shift; |
285 | my $fh; |
388 | my $fh; |
286 | |
389 | |
287 | # no two-way xxx supported |
390 | # no two-way xxx supported |
288 | if (0 == fork) { |
391 | if (0 == fork) { |
289 | open STDOUT, ">&".fileno($self->{fh}); |
392 | open STDOUT, ">&".fileno($self->{fh}); |
290 | if (chdir $::DOCROOT) { |
393 | if (chdir $::DOCROOT) { |
291 | $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike |
394 | $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike |
292 | $ENV{HTTP_HOST} = $self->server_host; |
395 | $ENV{HTTP_HOST} = $self->{server_name}; |
293 | $ENV{HTTP_PORT} = $self->{server_host}; |
396 | $ENV{HTTP_PORT} = $self->{server_port}; |
294 | $ENV{SCRIPT_NAME} = $self->{name}; |
397 | $ENV{SCRIPT_NAME} = $self->{name}; |
295 | exec $::INDEXPROG; |
398 | exec $path; |
296 | } |
399 | } |
297 | Coro::State::_exit(0); |
400 | Coro::State::_exit(0); |
298 | } else { |
401 | } else { |
|
|
402 | die; |
299 | } |
403 | } |
|
|
404 | } |
|
|
405 | |
|
|
406 | sub server_hostport { |
|
|
407 | $_[0]{server_port} == 80 |
|
|
408 | ? $_[0]{server_name} |
|
|
409 | : "$_[0]{server_name}:$_[0]{server_port}"; |
300 | } |
410 | } |
301 | |
411 | |
302 | sub respond { |
412 | sub respond { |
303 | my $self = shift; |
413 | my $self = shift; |
304 | my $path = $self->{path}; |
414 | my $path = $self->{path}; |
305 | |
415 | |
306 | stat $path |
416 | if ($self->{name} =~ s%^/internal/([^/]+)%%) { |
307 | or $self->err(404, "not found"); |
417 | if ($::internal{$1}) { |
308 | |
418 | $::internal{$1}->($self); |
309 | # idiotic netscape sends idiotic headers AGAIN |
|
|
310 | my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ |
|
|
311 | ? str2time $1 : 0; |
|
|
312 | |
|
|
313 | if (-d _ && -r _) { |
|
|
314 | # directory |
|
|
315 | if ($path !~ /\/$/) { |
|
|
316 | # create a redirect to get the trailing "/" |
|
|
317 | my $host = $self->server_hostport; |
|
|
318 | $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); |
|
|
319 | } else { |
419 | } else { |
320 | $ims < (stat _)[9] |
420 | $self->err(404, "not found"); |
|
|
421 | } |
|
|
422 | } else { |
|
|
423 | |
|
|
424 | stat $path |
|
|
425 | or $self->err(404, "not found"); |
|
|
426 | |
|
|
427 | $self->{stat} = [stat _]; |
|
|
428 | |
|
|
429 | # idiotic netscape sends idiotic headers AGAIN |
|
|
430 | my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ |
|
|
431 | ? str2time $1 : 0; |
|
|
432 | |
|
|
433 | if (-d _ && -r _) { |
|
|
434 | # directory |
|
|
435 | if ($path !~ /\/$/) { |
|
|
436 | # create a redirect to get the trailing "/" |
|
|
437 | # we don't try to avoid the :80 |
|
|
438 | $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" }); |
|
|
439 | } else { |
|
|
440 | $ims < $self->{stat}[9] |
321 | or $self->err(304, "not modified"); |
441 | or $self->err(304, "not modified"); |
322 | |
442 | |
323 | if ($self->{method} eq "GET") { |
|
|
324 | if (-r "$path/index.html") { |
443 | if (-r "$path/index.html") { |
|
|
444 | # replace directory "size" by index.html filesize |
325 | $self->{path} .= "/index.html"; |
445 | $self->{stat} = [stat ($self->{path} .= "/index.html")]; |
326 | $self->handle_file; |
446 | $self->handle_file($queue_index); |
327 | } else { |
447 | } else { |
328 | $self->handle_dir; |
448 | $self->handle_dir; |
329 | } |
449 | } |
330 | } |
450 | } |
331 | } |
|
|
332 | } elsif (-f _ && -r _) { |
451 | } elsif (-f _ && -r _) { |
333 | -x _ and $self->err(403, "forbidden"); |
452 | -x _ and $self->err(403, "forbidden"); |
|
|
453 | |
|
|
454 | if (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) { |
|
|
455 | my $timeout = $::NOW + 10; |
|
|
456 | while (keys %{$conn{$self->{remote_id}}} > $::MAX_TRANSFERS_IP) { |
|
|
457 | if ($timeout < $::NOW) { |
|
|
458 | $self->block($::BLOCKTIME, "too many connections"); |
|
|
459 | } else { |
|
|
460 | $httpevent->wait; |
|
|
461 | } |
|
|
462 | } |
|
|
463 | } |
|
|
464 | |
334 | $self->handle_file; |
465 | $self->handle_file($queue_file); |
335 | } else { |
466 | } else { |
336 | $self->err(404, "not found"); |
467 | $self->err(404, "not found"); |
|
|
468 | } |
337 | } |
469 | } |
338 | } |
470 | } |
339 | |
471 | |
340 | sub handle_dir { |
472 | sub handle_dir { |
341 | my $self = shift; |
473 | my $self = shift; |
342 | $self->_cgi($::INDEXPROG); |
474 | my $idx = $self->diridx; |
|
|
475 | |
|
|
476 | $self->response(200, "ok", |
|
|
477 | { |
|
|
478 | "Content-Type" => "text/html", |
|
|
479 | "Content-Length" => length $idx, |
|
|
480 | "Last-Modified" => time2str ($self->{stat}[9]), |
|
|
481 | }, |
|
|
482 | $idx); |
343 | } |
483 | } |
344 | |
484 | |
345 | sub handle_file { |
485 | sub handle_file { |
346 | my $self = shift; |
486 | my ($self, $queue) = @_; |
347 | my $length = -s _; |
487 | my $length = $self->{stat}[7]; |
348 | my $hdr = { |
488 | my $hdr = { |
349 | "Last-Modified" => time2str ((stat _)[9]), |
489 | "Last-Modified" => time2str ((stat _)[9]), |
350 | }; |
490 | }; |
351 | |
491 | |
352 | my @code = (200, "ok"); |
492 | my @code = (200, "ok"); |
… | |
… | |
360 | ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); |
500 | ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); |
361 | } else { |
501 | } else { |
362 | ($l, $h) = (0, $length - 1); |
502 | ($l, $h) = (0, $length - 1); |
363 | goto ignore; |
503 | goto ignore; |
364 | } |
504 | } |
365 | goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; |
505 | goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; |
366 | } |
506 | } |
367 | $hdr->{"Content-Range"} = "bytes */$length"; |
507 | $hdr->{"Content-Range"} = "bytes */$length"; |
|
|
508 | $hdr->{"Content-Length"} = $length; |
368 | $self->err(416, "not satisfiable", $hdr); |
509 | $self->err(416, "not satisfiable", $hdr, ""); |
369 | |
510 | |
370 | satisfiable: |
511 | satisfiable: |
371 | # check for segmented downloads |
512 | # check for segmented downloads |
372 | if ($l && $NO_SEGMENTED) { |
513 | if ($l && $::NO_SEGMENTED) { |
373 | if (%{$uri{$self->{uri}}} > 1) { |
514 | my $timeout = $::NOW + 15; |
374 | $self->slog("segmented download refused\n"); |
515 | while (keys %{$uri{$self->{remote_id}}{$self->{uri}}} > 1) { |
375 | $self->err(400, "segmented downloads are not allowed"); |
516 | if ($timeout <= $::NOW) { |
|
|
517 | $self->block($::BLOCKTIME, "segmented downloads are forbidden"); |
|
|
518 | #$self->err_segmented_download; |
|
|
519 | } else { |
|
|
520 | $httpevent->wait; |
|
|
521 | } |
376 | } |
522 | } |
377 | } |
523 | } |
378 | |
524 | |
379 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
525 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
380 | @code = (206, "partial content"); |
526 | @code = (206, "partial content"); |
… | |
… | |
383 | ignore: |
529 | ignore: |
384 | } else { |
530 | } else { |
385 | ($l, $h) = (0, $length - 1); |
531 | ($l, $h) = (0, $length - 1); |
386 | } |
532 | } |
387 | |
533 | |
388 | if ($self->{path} =~ /\.html$/) { |
534 | $self->{path} =~ /\.([^.]+)$/; |
389 | $hdr->{"Content-Type"} = "text/html"; |
|
|
390 | } else { |
|
|
391 | $hdr->{"Content-Type"} = "application/octet-stream"; |
535 | $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream"; |
392 | } |
|
|
393 | |
|
|
394 | $hdr->{"Content-Length"} = $length; |
536 | $hdr->{"Content-Length"} = $length; |
395 | |
537 | |
396 | $self->response(@code, $hdr, ""); |
538 | $self->response(@code, $hdr, ""); |
397 | |
539 | |
398 | if ($self->{method} eq "GET") { |
540 | if ($self->{method} eq "GET") { |
|
|
541 | $self->{time} = $::NOW; |
|
|
542 | |
|
|
543 | my $current = $Coro::current; |
|
|
544 | |
399 | my ($fh, $buf); |
545 | my ($fh, $buf, $r); |
|
|
546 | |
400 | open $fh, "<", $self->{path} |
547 | open $fh, "<", $self->{path} |
401 | or die "$self->{path}: late open failure ($!)"; |
548 | or die "$self->{path}: late open failure ($!)"; |
402 | |
549 | |
403 | if ($l) { |
|
|
404 | sysseek $fh, $l, 0 |
|
|
405 | or die "$self->{path}: cannot seek to $l ($!)"; |
|
|
406 | } |
|
|
407 | |
|
|
408 | $h -= $l - 1; |
550 | $h -= $l - 1; |
409 | |
551 | |
|
|
552 | if (0) { # !AIO |
|
|
553 | if ($l) { |
|
|
554 | sysseek $fh, $l, 0; |
|
|
555 | } |
|
|
556 | } |
|
|
557 | |
|
|
558 | my $transfer = $queue->start_transfer($h); |
|
|
559 | my $locked; |
|
|
560 | my $bufsize = $::WAIT_BUFSIZE; # initial buffer size |
|
|
561 | |
410 | while ($h > 0) { |
562 | while ($h > 0) { |
411 | $h -= sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h; |
563 | unless ($locked) { |
412 | $self->{fh}->syswrite($buf) |
564 | if ($locked ||= $transfer->try($::WAIT_INTERVAL)) { |
|
|
565 | $bufsize = $::BUFSIZE; |
|
|
566 | $self->{time} = $::NOW; |
|
|
567 | } |
|
|
568 | } |
|
|
569 | |
|
|
570 | if ($blocked{$self->{remote_id}}) { |
|
|
571 | $self->{h}{connection} = "close"; |
|
|
572 | die bless {}, err::; |
|
|
573 | } |
|
|
574 | |
|
|
575 | if (0) { # !AIO |
|
|
576 | sysread $fh, $buf, $h > $bufsize ? $bufsize : $h |
|
|
577 | or last; |
|
|
578 | } else { |
|
|
579 | aio_read($fh, $l, ($h > $bufsize ? $bufsize : $h), |
|
|
580 | $buf, 0, sub { |
|
|
581 | $r = $_[0]; |
|
|
582 | Coro::ready($current); |
|
|
583 | }); |
|
|
584 | &Coro::schedule; |
|
|
585 | last unless $r; |
|
|
586 | } |
|
|
587 | my $w = syswrite $self->{fh}, $buf |
413 | or last; |
588 | or last; |
|
|
589 | $::written += $w; |
|
|
590 | $self->{written} += $w; |
|
|
591 | $l += $r; |
414 | } |
592 | } |
415 | } |
|
|
416 | |
593 | |
417 | close $fh; |
594 | close $fh; |
|
|
595 | } |
418 | } |
596 | } |
419 | |
597 | |
420 | 1; |
598 | 1; |