1 | use Coro; |
1 | use Coro; |
2 | use Coro::Semaphore; |
2 | use Coro::Semaphore; |
3 | use Coro::Event; |
3 | use Coro::Event; |
4 | use Coro::Socket; |
4 | use Coro::Socket; |
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5 | use Coro::Signal; |
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6 | |
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7 | use HTTP::Date; |
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8 | use POSIX (); |
5 | |
9 | |
6 | no utf8; |
10 | no utf8; |
7 | use bytes; |
11 | use bytes; |
8 | |
12 | |
9 | # at least on my machine, this thingy serves files |
13 | # at least on my machine, this thingy serves files |
10 | # quite a bit faster than apache, ;) |
14 | # quite a bit faster than apache, ;) |
11 | # and quite a bit slower than thttpd :( |
15 | # and quite a bit slower than thttpd :( |
12 | |
16 | |
13 | $SIG{PIPE} = 'IGNORE'; |
17 | $SIG{PIPE} = 'IGNORE'; |
14 | |
18 | |
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19 | our $accesslog; |
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20 | |
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21 | if ($ACCESS_LOG) { |
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22 | use IO::Handle; |
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23 | open $accesslog, ">>$ACCESS_LOG" |
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24 | or die "$ACCESS_LOG: $!"; |
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25 | $accesslog->autoflush(1); |
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26 | } |
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27 | |
15 | sub slog { |
28 | sub slog { |
16 | my $level = shift; |
29 | my $level = shift; |
17 | my $format = shift; |
30 | my $format = shift; |
18 | printf "---: $format\n", @_; |
31 | printf "---: $format\n", @_; |
19 | } |
32 | } |
20 | |
33 | |
21 | my $connections = new Coro::Semaphore $MAX_CONNECTS; |
34 | our $connections = new Coro::Semaphore $MAX_CONNECTS || 250; |
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35 | our $httpevent = new Coro::Signal; |
22 | |
36 | |
23 | my @fh; |
37 | our $wait_factor = 0.95; |
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38 | |
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39 | our @transfers = ( |
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40 | (new transferqueue $MAX_TRANSFERS_SMALL), |
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41 | (new transferqueue $MAX_TRANSFERS_LARGE), |
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42 | ); |
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43 | |
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44 | my @newcons; |
24 | my @pool; |
45 | my @pool; |
25 | |
46 | |
26 | # one "execution thread" |
47 | # one "execution thread" |
27 | sub handler { |
48 | sub handler { |
28 | while () { |
49 | while () { |
29 | my $fh = pop @fh; |
50 | if (@newcons) { |
30 | if ($fh) { |
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31 | eval { |
51 | eval { |
32 | conn->new($fh)->handle; |
52 | conn->new(@{pop @newcons})->handle; |
33 | }; |
53 | }; |
34 | close $fh; |
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35 | slog 1, "$@" if $@ && !ref $@; |
54 | slog 1, "$@" if $@ && !ref $@; |
36 | $connections->up; |
55 | $connections->up; |
37 | } else { |
56 | } else { |
38 | last if @pool >= $MAX_POOL; |
57 | last if @pool >= $MAX_POOL; |
39 | push @pool, $Coro::current; |
58 | push @pool, $Coro::current; |
40 | schedule; |
59 | schedule; |
41 | } |
60 | } |
42 | } |
61 | } |
43 | } |
62 | } |
44 | |
63 | |
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64 | sub listen_on { |
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65 | my $listen = $_[0]; |
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66 | |
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67 | push @listen_sockets, $listen; |
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68 | |
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69 | # the "main thread" |
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70 | async { |
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71 | slog 1, "accepting connections"; |
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72 | while () { |
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73 | $connections->down; |
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74 | push @newcons, [$listen->accept]; |
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75 | #slog 3, "accepted @$connections ".scalar(@pool); |
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76 | if (@pool) { |
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77 | (pop @pool)->ready; |
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78 | } else { |
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79 | async \&handler; |
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80 | } |
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81 | |
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82 | } |
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83 | }; |
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84 | } |
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85 | |
45 | my $http_port = new Coro::Socket |
86 | my $http_port = new Coro::Socket |
46 | LocalAddr => $SERVER_HOST, |
87 | LocalAddr => $SERVER_HOST, |
47 | LocalPort => $SERVER_PORT, |
88 | LocalPort => $SERVER_PORT, |
48 | ReuseAddr => 1, |
89 | ReuseAddr => 1, |
49 | Listen => 1, |
90 | Listen => 50, |
50 | or die "unable to start server"; |
91 | or die "unable to start server"; |
51 | |
92 | |
52 | push @listen_sockets, $http_port; |
93 | listen_on $http_port; |
53 | |
94 | |
54 | # the "main thread" |
95 | if ($SERVER_PORT2) { |
55 | async { |
96 | my $http_port = new Coro::Socket |
56 | slog 1, "accepting connections"; |
97 | LocalAddr => $SERVER_HOST, |
57 | while () { |
98 | LocalPort => $SERVER_PORT2, |
58 | $connections->down; |
99 | ReuseAddr => 1, |
59 | push @fh, $http_port->accept; |
100 | Listen => 50, |
60 | #slog 3, "accepted @$connections ".scalar(@pool); |
101 | or die "unable to start server"; |
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102 | |
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103 | listen_on $http_port; |
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104 | } |
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105 | |
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106 | our $NOW; |
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107 | our $HTTP_NOW; |
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108 | |
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109 | Event->timer(interval => 1, hard => 1, cb => sub { |
61 | $::NOW = time; |
110 | $NOW = time; |
62 | if (@pool) { |
111 | $HTTP_NOW = time2str $NOW; |
63 | (pop @pool)->ready; |
112 | })->now; |
64 | } else { |
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65 | async \&handler; |
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66 | } |
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67 | |
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68 | } |
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69 | }; |
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70 | |
113 | |
71 | package conn; |
114 | package conn; |
72 | |
115 | |
73 | use Socket; |
116 | use Socket; |
74 | use HTTP::Date; |
117 | use HTTP::Date; |
75 | use Convert::Scalar 'weaken'; |
118 | use Convert::Scalar 'weaken'; |
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119 | use Linux::AIO; |
76 | |
120 | |
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121 | Linux::AIO::min_parallel $::AIO_PARALLEL; |
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122 | |
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123 | Event->io(fd => Linux::AIO::poll_fileno, |
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124 | poll => 'r', async => 1, |
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125 | cb => \&Linux::AIO::poll_cb); |
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126 | |
77 | our %conn; # $conn{ip}{fh} => connobj |
127 | our %conn; # $conn{ip}{self} => connobj |
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128 | our %uri; # $uri{ip}{uri}{self} |
78 | our %blocked; |
129 | our %blocked; |
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130 | our %mimetype; |
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131 | |
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132 | sub read_mimetypes { |
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133 | local *M; |
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134 | if (open M, "<mime_types") { |
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135 | while (<M>) { |
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136 | if (/^([^#]\S+)\t+(\S+)$/) { |
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137 | $mimetype{lc $1} = $2; |
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138 | } |
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139 | } |
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140 | } else { |
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141 | print "cannot open mime_types\n"; |
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142 | } |
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143 | } |
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144 | |
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145 | read_mimetypes; |
79 | |
146 | |
80 | sub new { |
147 | sub new { |
81 | my $class = shift; |
148 | my $class = shift; |
82 | my $fh = shift; |
149 | my $fh = shift; |
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150 | my $peername = shift; |
83 | my $self = bless { fh => $fh }, $class; |
151 | my $self = bless { fh => $fh }, $class; |
84 | my (undef, $iaddr) = unpack_sockaddr_in $fh->getpeername |
152 | my (undef, $iaddr) = unpack_sockaddr_in $peername |
85 | or $self->err(500, "unable to get peername"); |
153 | or $self->err(500, "unable to decode peername"); |
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154 | |
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155 | $self->{remote_addr} = |
86 | $self->{remote_addr} = inet_ntoa $iaddr; |
156 | $self->{remote_id} = inet_ntoa $iaddr; |
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157 | $self->{time} = $::NOW; |
87 | |
158 | |
88 | # enter ourselves into various lists |
159 | weaken ($Coro::current->{conn} = $self); |
89 | weaken ($conn{$self->{remote_addr}}{$self*1} = $self); |
160 | |
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161 | $::conns++; |
90 | |
162 | |
91 | $self; |
163 | $self; |
92 | } |
164 | } |
93 | |
165 | |
94 | sub DESTROY { |
166 | sub DESTROY { |
95 | my $self = shift; |
167 | my $self = shift; |
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168 | $::conns--; |
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169 | $self->eoconn; |
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170 | } |
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171 | |
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172 | # end of connection |
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173 | sub eoconn { |
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174 | my $self = shift; |
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175 | |
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176 | # clean up hints |
96 | delete $conn{$self->{remote_addr}}{$self*1}; |
177 | delete $conn{$self->{remote_id}}{$self*1}; |
97 | delete $uri{$self->{uri}}{$self*1}; |
178 | delete $uri{$self->{remote_id}}{$self->{uri}}{$self*1}; |
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179 | |
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180 | $httpevent->broadcast; |
98 | } |
181 | } |
99 | |
182 | |
100 | sub slog { |
183 | sub slog { |
101 | my $self = shift; |
184 | my $self = shift; |
102 | main::slog($_[0], "$self->{remote_addr}> $_[1]"); |
185 | main::slog($_[0], "$self->{remote_id}> $_[1]"); |
103 | } |
186 | } |
104 | |
187 | |
105 | sub response { |
188 | sub response { |
106 | my ($self, $code, $msg, $hdr, $content) = @_; |
189 | my ($self, $code, $msg, $hdr, $content) = @_; |
107 | my $res = "HTTP/1.0 $code $msg\015\012"; |
190 | my $res = "HTTP/1.1 $code $msg\015\012"; |
108 | |
191 | |
109 | $res .= "Connection: close\015\012"; |
192 | if (exists $hdr->{Connection}) { |
110 | $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :( |
193 | if ($hdr->{Connection} =~ /close/) { |
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194 | $self->{h}{connection} = "close" |
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195 | } |
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196 | } else { |
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197 | if ($self->{version} < 1.1) { |
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198 | if ($self->{h}{connection} =~ /keep-alive/i) { |
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199 | $hdr->{Connection} = "Keep-Alive"; |
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200 | } else { |
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201 | $self->{h}{connection} = "close" |
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202 | } |
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203 | } |
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204 | } |
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205 | |
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206 | $res .= "Date: $HTTP_NOW\015\012"; |
111 | |
207 | |
112 | while (my ($h, $v) = each %$hdr) { |
208 | while (my ($h, $v) = each %$hdr) { |
113 | $res .= "$h: $v\015\012" |
209 | $res .= "$h: $v\015\012" |
114 | } |
210 | } |
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211 | $res .= "\015\012"; |
115 | |
212 | |
116 | $res .= "\015\012$content" if defined $content; |
213 | $res .= $content if defined $content and $self->{method} ne "HEAD"; |
117 | |
214 | |
118 | print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d# |
215 | my $log = (POSIX::strftime "%Y-%m-%d %H:%M:%S", gmtime $NOW). |
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216 | " $self->{remote_id} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}. |
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217 | " \"$self->{h}{referer}\"\n"; |
119 | |
218 | |
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219 | print $accesslog $log if $accesslog; |
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220 | print STDERR $log; |
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221 | |
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222 | $self->{written} += |
120 | print {$self->{fh}} $res; |
223 | print {$self->{fh}} $res; |
121 | } |
224 | } |
122 | |
225 | |
123 | sub err { |
226 | sub err { |
124 | my $self = shift; |
227 | my $self = shift; |
125 | my ($code, $msg, $hdr, $content) = @_; |
228 | my ($code, $msg, $hdr, $content) = @_; |
126 | |
229 | |
127 | unless (defined $content) { |
230 | unless (defined $content) { |
128 | $content = "$code $msg"; |
231 | $content = "$code $msg\n"; |
129 | $hdr->{"Content-Type"} = "text/plain"; |
232 | $hdr->{"Content-Type"} = "text/plain"; |
130 | $hdr->{"Content-Length"} = length $content; |
233 | $hdr->{"Content-Length"} = length $content; |
131 | } |
234 | } |
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235 | $hdr->{"Connection"} = "close"; |
132 | |
236 | |
133 | $self->response($code, $msg, $hdr, $content); |
237 | $self->response($code, $msg, $hdr, $content); |
134 | |
238 | |
135 | die bless {}, err::; |
239 | die bless {}, err::; |
136 | } |
240 | } |
137 | |
241 | |
138 | sub err_blocked { |
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139 | my $self = shift; |
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140 | my $ip = $self->{remote_addr}; |
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141 | my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME; |
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142 | $self->err(403, "too many connections", |
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143 | { |
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144 | "Content-Type" => "text/html", |
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145 | "Retry-After" => $::BLOCKTIME |
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146 | }, |
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147 | <<EOF); |
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148 | <html><p> |
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149 | You have been blocked because you opened too many connections. You |
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150 | may retry at</p> |
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151 | |
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152 | <p><blockquote>$time.</blockquote></p> |
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153 | |
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154 | <p>Until then, each new access will renew the block. You might want to have a |
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155 | look at the <a href="http://www.goof.com/pcg/marc/animefaq.html">FAQ</a>.</p> |
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156 | </html> |
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157 | EOF |
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158 | } |
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159 | |
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160 | sub handle { |
242 | sub handle { |
161 | my $self = shift; |
243 | my $self = shift; |
162 | my $fh = $self->{fh}; |
244 | my $fh = $self->{fh}; |
163 | |
245 | |
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246 | my $host; |
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247 | |
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248 | $fh->timeout($::REQ_TIMEOUT); |
164 | #while() { |
249 | while() { |
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250 | $self->{reqs}++; |
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251 | |
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252 | # read request and parse first line |
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253 | my $req = $fh->readline("\015\012\015\012"); |
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254 | |
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255 | unless (defined $req) { |
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256 | if (exists $self->{version}) { |
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257 | last; |
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258 | } else { |
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259 | $self->err(408, "request timeout"); |
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260 | } |
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261 | } |
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262 | |
165 | $self->{h} = {}; |
263 | $self->{h} = {}; |
166 | |
264 | |
167 | # read request and parse first line |
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168 | $fh->timeout($::REQ_TIMEOUT); |
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169 | my $req = $fh->readline("\015\012\015\012"); |
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170 | $fh->timeout($::RES_TIMEOUT); |
265 | $fh->timeout($::RES_TIMEOUT); |
171 | |
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172 | defined $req or |
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173 | $self->err(408, "request timeout"); |
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174 | |
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175 | my $ip = $self->{remote_addr}; |
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176 | |
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177 | if ($blocked{$ip}) { |
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178 | $self->err_blocked($blocked{$ip}) |
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179 | if $blocked{$ip} > $::NOW; |
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180 | |
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181 | delete $blocked{$ip}; |
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182 | } |
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183 | |
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184 | if (%{$conn{$ip}} > $::MAX_CONN_IP) { |
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185 | $self->slog("blocked ip $ip"); |
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186 | $self->err_blocked; |
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187 | } |
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188 | |
266 | |
189 | $req =~ /^(?:\015\012)? |
267 | $req =~ /^(?:\015\012)? |
190 | (GET|HEAD) \040+ |
268 | (GET|HEAD) \040+ |
191 | ([^\040]+) \040+ |
269 | ([^\040]+) \040+ |
192 | HTTP\/([0-9]+\.[0-9]+) |
270 | HTTP\/([0-9]+\.[0-9]+) |
193 | \015\012/gx |
271 | \015\012/gx |
194 | or $self->err(403, "method not allowed", { Allow => "GET,HEAD" }); |
272 | or $self->err(405, "method not allowed", { Allow => "GET,HEAD" }); |
195 | |
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196 | $2 ne "1.0" |
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197 | or $self->err(506, "http protocol version not supported"); |
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198 | |
273 | |
199 | $self->{method} = $1; |
274 | $self->{method} = $1; |
200 | $self->{uri} = $2; |
275 | $self->{uri} = $2; |
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276 | $self->{version} = $3; |
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277 | |
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278 | $3 =~ /^1\./ |
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279 | or $self->err(506, "http protocol version $3 not supported"); |
201 | |
280 | |
202 | # parse headers |
281 | # parse headers |
203 | { |
282 | { |
204 | my (%hdr, $h, $v); |
283 | my (%hdr, $h, $v); |
205 | |
284 | |
… | |
… | |
216 | |
295 | |
217 | $self->{h}{$h} = substr $v, 1 |
296 | $self->{h}{$h} = substr $v, 1 |
218 | while ($h, $v) = each %hdr; |
297 | while ($h, $v) = each %hdr; |
219 | } |
298 | } |
220 | |
299 | |
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300 | # remote id should be unique per user |
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301 | my $id = $self->{remote_addr}; |
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302 | |
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303 | if (exists $self->{h}{"client-ip"}) { |
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304 | $id .= "[".$self->{h}{"client-ip"}."]"; |
|
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305 | } elsif (exists $self->{h}{"x-forwarded-for"}) { |
|
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306 | $id .= "[".$self->{h}{"x-forwarded-for"}."]"; |
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307 | } |
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308 | |
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309 | $self->{remote_id} = $id; |
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310 | |
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311 | if ($blocked{$id}) { |
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312 | $self->err_blocked($blocked{$id}) |
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313 | if $blocked{$id} > $::NOW; |
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314 | |
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315 | delete $blocked{$id}; |
|
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316 | } |
|
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317 | |
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318 | if (%{$conn{$id}} >= $::MAX_CONN_IP) { |
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319 | my $delay = $::PER_TIMEOUT + $::NOW + 15; |
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320 | while (%{$conn{$id}} >= $::MAX_CONN_IP) { |
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321 | if ($delay < $::NOW) { |
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322 | $self->slog(2, "blocked ip $id"); |
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323 | $self->err_blocked; |
|
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324 | } else { |
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325 | $httpevent->wait; |
|
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326 | } |
|
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327 | } |
|
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328 | } |
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329 | |
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330 | # find out server name and port |
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331 | if ($self->{uri} =~ s/^http:\/\/([^\/?#]*)//i) { |
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332 | $host = $1; |
|
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333 | } else { |
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334 | $host = $self->{h}{host}; |
|
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335 | } |
|
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336 | |
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337 | if (defined $host) { |
221 | $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; |
338 | $self->{server_port} = $host =~ s/:([0-9]+)$// ? $1 : 80; |
|
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339 | } else { |
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340 | ($self->{server_port}, $host) |
|
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341 | = unpack_sockaddr_in $self->{fh}->sockname |
|
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342 | or $self->err(500, "unable to get socket name"); |
|
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343 | $host = inet_ntoa $host; |
|
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344 | } |
222 | |
345 | |
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346 | $self->{server_name} = $host; |
|
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347 | |
|
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348 | # enter ourselves into various lists |
|
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349 | weaken ($conn{$id}{$self*1} = $self); |
223 | weaken ($uri{$self->{uri}}{$self*1} = $self); |
350 | weaken ($uri{$id}{$self->{uri}}{$self*1} = $self); |
224 | |
351 | |
|
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352 | eval { |
225 | $self->map_uri; |
353 | $self->map_uri; |
226 | |
|
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227 | Coro::Event::do_timer(after => 5); |
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228 | |
|
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229 | $self->respond; |
354 | $self->respond; |
|
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355 | }; |
|
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356 | |
|
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357 | $self->eoconn; |
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358 | |
|
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359 | die if $@ && !ref $@; |
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360 | |
|
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361 | last if $self->{h}{connection} =~ /close/; |
|
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362 | |
|
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363 | $httpevent->broadcast; |
|
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364 | |
|
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365 | $fh->timeout($::PER_TIMEOUT); |
230 | #} |
366 | } |
231 | } |
367 | } |
232 | |
368 | |
233 | # uri => path mapping |
369 | # uri => path mapping |
234 | sub map_uri { |
370 | sub map_uri { |
235 | my $self = shift; |
371 | my $self = shift; |
236 | my $host = $self->{h}{host} || "default"; |
372 | my $host = $self->{server_name}; |
237 | my $uri = $self->{uri}; |
373 | my $uri = $self->{uri}; |
238 | |
374 | |
239 | # some massaging, also makes it more secure |
375 | # some massaging, also makes it more secure |
240 | $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; |
376 | $uri =~ s/%([0-9a-fA-F][0-9a-fA-F])/chr hex $1/ge; |
241 | $uri =~ s%//+%/%g; |
377 | $uri =~ s%//+%/%g; |
… | |
… | |
247 | |
383 | |
248 | $self->{name} = $uri; |
384 | $self->{name} = $uri; |
249 | |
385 | |
250 | # now do the path mapping |
386 | # now do the path mapping |
251 | $self->{path} = "$::DOCROOT/$host$uri"; |
387 | $self->{path} = "$::DOCROOT/$host$uri"; |
252 | } |
|
|
253 | |
388 | |
254 | sub server_address { |
389 | $self->access_check; |
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 | } |
390 | } |
281 | |
391 | |
282 | sub _cgi { |
392 | sub _cgi { |
283 | my $self = shift; |
393 | my $self = shift; |
284 | my $path = shift; |
394 | my $path = shift; |
… | |
… | |
287 | # no two-way xxx supported |
397 | # no two-way xxx supported |
288 | if (0 == fork) { |
398 | if (0 == fork) { |
289 | open STDOUT, ">&".fileno($self->{fh}); |
399 | open STDOUT, ">&".fileno($self->{fh}); |
290 | if (chdir $::DOCROOT) { |
400 | if (chdir $::DOCROOT) { |
291 | $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike |
401 | $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike |
292 | $ENV{HTTP_HOST} = $self->server_host; |
402 | $ENV{HTTP_HOST} = $self->{server_name}; |
293 | $ENV{HTTP_PORT} = $self->{server_host}; |
403 | $ENV{HTTP_PORT} = $self->{server_port}; |
294 | $ENV{SCRIPT_NAME} = $self->{name}; |
404 | $ENV{SCRIPT_NAME} = $self->{name}; |
295 | exec $::INDEXPROG; |
405 | exec $path; |
296 | } |
406 | } |
297 | Coro::State::_exit(0); |
407 | Coro::State::_exit(0); |
298 | } else { |
408 | } else { |
|
|
409 | die; |
299 | } |
410 | } |
|
|
411 | } |
|
|
412 | |
|
|
413 | sub server_hostport { |
|
|
414 | $_[0]{server_port} == 80 |
|
|
415 | ? $_[0]{server_name} |
|
|
416 | : "$_[0]{server_name}:$_[0]{server_port}"; |
300 | } |
417 | } |
301 | |
418 | |
302 | sub respond { |
419 | sub respond { |
303 | my $self = shift; |
420 | my $self = shift; |
304 | my $path = $self->{path}; |
421 | my $path = $self->{path}; |
305 | |
422 | |
306 | stat $path |
423 | if ($self->{name} =~ s%^/internal/([^/]+)%%) { |
307 | or $self->err(404, "not found"); |
424 | if ($::internal{$1}) { |
308 | |
425 | $::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 { |
426 | } else { |
320 | $ims < (stat _)[9] |
427 | $self->err(404, "not found"); |
|
|
428 | } |
|
|
429 | } else { |
|
|
430 | |
|
|
431 | stat $path |
|
|
432 | or $self->err(404, "not found"); |
|
|
433 | |
|
|
434 | $self->{stat} = [stat _]; |
|
|
435 | |
|
|
436 | # idiotic netscape sends idiotic headers AGAIN |
|
|
437 | my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ |
|
|
438 | ? str2time $1 : 0; |
|
|
439 | |
|
|
440 | if (-d _ && -r _) { |
|
|
441 | # directory |
|
|
442 | if ($path !~ /\/$/) { |
|
|
443 | # create a redirect to get the trailing "/" |
|
|
444 | # we don't try to avoid the :80 |
|
|
445 | $self->err(301, "moved permanently", { Location => "http://".$self->server_hostport."$self->{uri}/" }); |
|
|
446 | } else { |
|
|
447 | $ims < $self->{stat}[9] |
321 | or $self->err(304, "not modified"); |
448 | or $self->err(304, "not modified"); |
322 | |
449 | |
323 | if ($self->{method} eq "GET") { |
|
|
324 | if (-r "$path/index.html") { |
450 | if (-r "$path/index.html") { |
325 | $self->{path} .= "/index.html"; |
451 | # replace directory "size" by index.html filesize |
|
|
452 | $self->{stat}[7] = (stat ($self->{path} .= "/index.html"))[7]; |
326 | $self->handle_file; |
453 | $self->handle_file; |
327 | } else { |
454 | } else { |
328 | $self->handle_dir; |
455 | $self->handle_dir; |
329 | } |
456 | } |
330 | } |
457 | } |
331 | } |
|
|
332 | } elsif (-f _ && -r _) { |
458 | } elsif (-f _ && -r _) { |
333 | -x _ and $self->err(403, "forbidden"); |
459 | -x _ and $self->err(403, "forbidden"); |
334 | $self->handle_file; |
460 | $self->handle_file; |
335 | } else { |
461 | } else { |
336 | $self->err(404, "not found"); |
462 | $self->err(404, "not found"); |
|
|
463 | } |
337 | } |
464 | } |
338 | } |
465 | } |
339 | |
466 | |
340 | sub handle_dir { |
467 | sub handle_dir { |
341 | my $self = shift; |
468 | my $self = shift; |
342 | $self->_cgi($::INDEXPROG); |
469 | my $idx = $self->diridx; |
|
|
470 | |
|
|
471 | $self->response(200, "ok", |
|
|
472 | { |
|
|
473 | "Content-Type" => "text/html", |
|
|
474 | "Content-Length" => length $idx, |
|
|
475 | #d# directories change all the time, so X- |
|
|
476 | "X-Last-Modified" => time2str ((stat _)[9]), |
|
|
477 | }, |
|
|
478 | $idx); |
343 | } |
479 | } |
344 | |
480 | |
345 | sub handle_file { |
481 | sub handle_file { |
346 | my $self = shift; |
482 | my $self = shift; |
347 | my $length = -s _; |
483 | my $length = $self->{stat}[7]; |
|
|
484 | my $queue = $::transfers[$length >= $::TRANSFER_SMALL]; |
348 | my $hdr = { |
485 | my $hdr = { |
349 | "Last-Modified" => time2str ((stat _)[9]), |
486 | "Last-Modified" => time2str ((stat _)[9]), |
350 | }; |
487 | }; |
351 | |
488 | |
352 | my @code = (200, "ok"); |
489 | my @code = (200, "ok"); |
… | |
… | |
360 | ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); |
497 | ($l, $h) = ($1, ($2 ne "" || $2 >= $length) ? $2 : $length - 1); |
361 | } else { |
498 | } else { |
362 | ($l, $h) = (0, $length - 1); |
499 | ($l, $h) = (0, $length - 1); |
363 | goto ignore; |
500 | goto ignore; |
364 | } |
501 | } |
365 | goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h > $l; |
502 | goto satisfiable if $l >= 0 && $l < $length && $h >= 0 && $h >= $l; |
366 | } |
503 | } |
367 | $hdr->{"Content-Range"} = "bytes */$length"; |
504 | $hdr->{"Content-Range"} = "bytes */$length"; |
|
|
505 | $hdr->{"Content-Length"} = $length; |
368 | $self->err(416, "not satisfiable", $hdr); |
506 | $self->err(416, "not satisfiable", $hdr, ""); |
369 | |
507 | |
370 | satisfiable: |
508 | satisfiable: |
371 | # check for segmented downloads |
509 | # check for segmented downloads |
372 | if ($l && $NO_SEGMENTED) { |
510 | if ($l && $::NO_SEGMENTED) { |
|
|
511 | my $delay = $::NOW + $::PER_TIMEOUT + 15; |
373 | if (%{$uri{$self->{uri}}} > 1) { |
512 | while (%{$uri{$self->{remote_id}}{$self->{uri}}} > 1) { |
374 | $self->slog("segmented download refused\n"); |
513 | if ($delay <= $::NOW) { |
375 | $self->err(400, "segmented downloads are not allowed"); |
514 | $self->err_segmented_download; |
|
|
515 | } else { |
|
|
516 | $httpevent->wait; |
|
|
517 | } |
376 | } |
518 | } |
377 | } |
519 | } |
378 | |
520 | |
379 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
521 | $hdr->{"Content-Range"} = "bytes $l-$h/$length"; |
380 | @code = (206, "partial content"); |
522 | @code = (206, "partial content"); |
… | |
… | |
383 | ignore: |
525 | ignore: |
384 | } else { |
526 | } else { |
385 | ($l, $h) = (0, $length - 1); |
527 | ($l, $h) = (0, $length - 1); |
386 | } |
528 | } |
387 | |
529 | |
388 | if ($self->{path} =~ /\.html$/) { |
530 | $self->{path} =~ /\.([^.]+)$/; |
389 | $hdr->{"Content-Type"} = "text/html"; |
|
|
390 | } else { |
|
|
391 | $hdr->{"Content-Type"} = "application/octet-stream"; |
531 | $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream"; |
392 | } |
|
|
393 | |
|
|
394 | $hdr->{"Content-Length"} = $length; |
532 | $hdr->{"Content-Length"} = $length; |
395 | |
533 | |
396 | $self->response(@code, $hdr, ""); |
534 | $self->response(@code, $hdr, ""); |
397 | |
535 | |
398 | if ($self->{method} eq "GET") { |
536 | if ($self->{method} eq "GET") { |
|
|
537 | $self->{time} = $::NOW; |
|
|
538 | |
|
|
539 | my $current = $Coro::current; |
|
|
540 | |
399 | my ($fh, $buf); |
541 | my ($fh, $buf, $r); |
|
|
542 | |
400 | open $fh, "<", $self->{path} |
543 | open $fh, "<", $self->{path} |
401 | or die "$self->{path}: late open failure ($!)"; |
544 | or die "$self->{path}: late open failure ($!)"; |
402 | |
545 | |
403 | if ($l) { |
|
|
404 | sysseek $fh, $l, 0 |
|
|
405 | or die "$self->{path}: cannot seek to $l ($!)"; |
|
|
406 | } |
|
|
407 | |
|
|
408 | $h -= $l - 1; |
546 | $h -= $l - 1; |
409 | |
547 | |
|
|
548 | if (0) { # !AIO |
|
|
549 | if ($l) { |
|
|
550 | sysseek $fh, $l, 0; |
|
|
551 | } |
|
|
552 | } |
|
|
553 | |
|
|
554 | my $transfer = $queue->start_transfer; |
|
|
555 | my $locked; |
|
|
556 | my $bufsize = $::WAIT_BUFSIZE; # initial buffer size |
|
|
557 | |
410 | while ($h > 0) { |
558 | while ($h > 0) { |
411 | $h -= sysread $fh, $buf, $h > 16384 ? 16384 : $h; |
559 | unless ($locked) { |
412 | print {$self->{fh}} $buf |
560 | if ($locked ||= $transfer->try($::WAIT_INTERVAL)) { |
|
|
561 | $bufsize = $::BUFSIZE; |
|
|
562 | $self->{time} = $::NOW; |
|
|
563 | } |
|
|
564 | } |
|
|
565 | |
|
|
566 | if (0) { # !AIO |
|
|
567 | sysread $fh, $buf, $h > $bufsize ? $bufsize : $h |
|
|
568 | or last; |
|
|
569 | } else { |
|
|
570 | aio_read($fh, $l, ($h > $bufsize ? $bufsize : $h), |
|
|
571 | $buf, 0, sub { |
|
|
572 | $r = $_[0]; |
|
|
573 | Coro::ready($current); |
|
|
574 | }); |
|
|
575 | &Coro::schedule; |
|
|
576 | last unless $r; |
|
|
577 | } |
|
|
578 | my $w = syswrite $self->{fh}, $buf |
413 | or last; |
579 | or last; |
414 | cede; |
580 | $::written += $w; |
|
|
581 | $self->{written} += $w; |
|
|
582 | $l += $r; |
415 | } |
583 | } |
416 | } |
|
|
417 | |
584 | |
418 | close $fh; |
585 | close $fh; |
|
|
586 | } |
419 | } |
587 | } |
420 | |
588 | |
421 | 1; |
589 | 1; |