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/cvs/cvsroot/Coro/myhttpd/httpd.pl
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Comparing cvsroot/Coro/myhttpd/httpd.pl (file contents):
Revision 1.1 by root, Thu Aug 9 02:57:54 2001 UTC vs.
Revision 1.13 by root, Sun Aug 12 01:16:48 2001 UTC

1#!/usr/bin/perl
2
3use Coro; 1use Coro;
4use Coro::Semaphore; 2use Coro::Semaphore;
5use Coro::Event; 3use Coro::Event;
6use Coro::Socket; 4use Coro::Socket;
7 5
… …
9use bytes; 7use 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
15my $port = new Coro::Socket
16 LocalAddr => $SERVER_HOST,
17 LocalPort => $SERVER_PORT,
18 ReuseAddr => 1,
19 Listen => 1,
20 or die "unable to start server";
21 12
22$SIG{PIPE} = 'IGNORE'; 13$SIG{PIPE} = 'IGNORE';
23 14
24sub slog { 15sub slog {
25 my $level = shift; 16 my $level = shift;
… …
27 printf "---: $format\n", @_; 18 printf "---: $format\n", @_;
28} 19}
29 20
30my $connections = new Coro::Semaphore $MAX_CONNECTS; 21my $connections = new Coro::Semaphore $MAX_CONNECTS;
31 22
32my @fh; 23my @newcons;
33my @pool; 24my @pool;
34 25
26# one "execution thread"
35sub handler { 27sub 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 $fh;
43 slog 1, "$@" 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
44my $http_port = new Coro::Socket
45 LocalAddr => $SERVER_HOST,
46 LocalPort => $SERVER_PORT,
47 ReuseAddr => 1,
48 Listen => 50,
49 or die "unable to start server";
50
51push @listen_sockets, $http_port;
52
53# the "main thread"
53async { 54async {
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);
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
68loop;
69print "ende\n";#d#
70
71package conn; 70package conn;
72 71
73use Socket; 72use Socket;
74use HTTP::Date; 73use HTTP::Date;
74use Convert::Scalar 'weaken';
75
76our %conn; # $conn{ip}{fh} => connobj
77our %blocked;
78our %mimetype;
79
80sub read_mimetypes {
81 local *M;
82 if (open M, "<mime_types") {
83 while (<M>) {
84 if (/^([^#]\S+)\t+(\S+)$/) {
85 $mimetype{lc $1} = $2;
86 }
87 }
88 } else {
89 print "cannot open mime_types\n";
90 }
91}
92
93read_mimetypes;
75 94
76sub new { 95sub new {
77 my $class = shift; 96 my $class = shift;
97 my $peername = shift;
78 my $fh = shift; 98 my $fh = shift;
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");
102
81 $self->{remote_address} = inet_ntoa $iaddr; 103 $self->{remote_addr} = inet_ntoa $iaddr;
82 bless { fh => $fh }, $class; 104 $self->{time} = $::NOW;
105
106 # enter ourselves into various lists
107 weaken ($conn{$self->{remote_addr}}{$self*1} = $self);
108
109 $::conns++;
110
111 $self;
112}
113
114sub DESTROY {
115 my $self = shift;
116
117 $::conns--;
118
119 delete $conn{$self->{remote_addr}}{$self*1};
120 delete $uri{$self->{remote_addr}}{$self->{uri}}{$self*1};
83} 121}
84 122
85sub slog { 123sub slog {
86 main::slog(@_); 124 my $self = shift;
125 main::slog($_[0], "$self->{remote_addr}> $_[1]");
87} 126}
88 127
89sub print_response { 128sub response {
90 my ($self, $code, $msg, $hdr, $content) = @_; 129 my ($self, $code, $msg, $hdr, $content) = @_;
91 my $res = "HTTP/1.0 $code $msg\015\012"; 130 my $res = "HTTP/1.0 $code $msg\015\012";
92 131
93 $hdr->{Date} = time2str time; # slow? nah. 132 $res .= "Connection: close\015\012";
133 $res .= "Date: ".(time2str $::NOW)."\015\012"; # slow? nah. :(
94 134
95 while (my ($h, $v) = each %$hdr) { 135 while (my ($h, $v) = each %$hdr) {
96 $res .= "$h: $v\015\012" 136 $res .= "$h: $v\015\012"
97 } 137 }
98 $res .= "\015\012$content" if defined $content; 138 $res .= "\015\012";
99 139
140 $res .= $content if defined $content and $self->{method} ne "HEAD";
141
142 print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d#
143
144 $self->{written} +=
100 print {$self->{fh}} $res; 145 print {$self->{fh}} $res;
101} 146}
102 147
103sub err { 148sub err {
104 my $self = shift; 149 my $self = shift;
105 my ($code, $msg, $hdr, $content) = @_; 150 my ($code, $msg, $hdr, $content) = @_;
… …
108 $content = "$code $msg"; 153 $content = "$code $msg";
109 $hdr->{"Content-Type"} = "text/plain"; 154 $hdr->{"Content-Type"} = "text/plain";
110 $hdr->{"Content-Length"} = length $content; 155 $hdr->{"Content-Length"} = length $content;
111 } 156 }
112 157
113 $self->slog($msg) if $code;
114
115 $self->print_response($code, $msg, $hdr, $content); 158 $self->response($code, $msg, $hdr, $content);
116 159
117 die bless {}, err::; 160 die bless {}, err::;
161}
162
163sub err_blocked {
164 my $self = shift;
165 my $ip = $self->{remote_addr};
166 my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME;
167
168 $self->err(403, "too many connections",
169 {
170 "Content-Type" => "text/html",
171 "Retry-After" => $::BLOCKTIME
172 },
173 <<EOF);
174<html><p>
175You have been blocked because you opened too many connections. You
176may retry at</p>
177
178 <p><blockquote>$time.</blockquote></p>
179
180<p>Until then, each new access will renew the block. You might want to have a
181look at the <a href="http://www.goof.com/pcg/marc/animefaq.html">FAQ</a>.</p>
182</html>
183EOF
118} 184}
119 185
120sub handle { 186sub handle {
121 my $self = shift; 187 my $self = shift;
122 my $fh = $self->{fh}; 188 my $fh = $self->{fh};
… …
129 my $req = $fh->readline("\015\012\015\012"); 195 my $req = $fh->readline("\015\012\015\012");
130 $fh->timeout($::RES_TIMEOUT); 196 $fh->timeout($::RES_TIMEOUT);
131 197
132 defined $req or 198 defined $req or
133 $self->err(408, "request timeout"); 199 $self->err(408, "request timeout");
200
201 my $ip = $self->{remote_addr};
202
203 if ($blocked{$ip}) {
204 $self->err_blocked($blocked{$ip})
205 if $blocked{$ip} > $::NOW;
206
207 delete $blocked{$ip};
208 }
209
210 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
211 $self->slog(2, "blocked ip $ip");
212 $self->err_blocked;
213 }
134 214
135 $req =~ /^(?:\015\012)? 215 $req =~ /^(?:\015\012)?
136 (GET|HEAD) \040+ 216 (GET|HEAD) \040+
137 ([^\040]+) \040+ 217 ([^\040]+) \040+
138 HTTP\/([0-9]+\.[0-9]+) 218 HTTP\/([0-9]+\.[0-9]+)
… …
164 while ($h, $v) = each %hdr; 244 while ($h, $v) = each %hdr;
165 } 245 }
166 246
167 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80; 247 $self->{server_port} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80;
168 248
249 weaken ($uri{$self->{remote_addr}}{$self->{uri}}{$self*1} = $self);
250
169 $self->map_uri; 251 $self->map_uri;
170 $self->respond; 252 $self->respond;
171 #} 253 #}
172} 254}
173 255
… …
188 270
189 $self->{name} = $uri; 271 $self->{name} = $uri;
190 272
191 # now do the path mapping 273 # now do the path mapping
192 $self->{path} = "$::DOCROOT/$host$uri"; 274 $self->{path} = "$::DOCROOT/$host$uri";
275
276 $self->access_check;
193} 277}
194 278
195sub server_address { 279sub server_address {
196 my $self = shift; 280 my $self = shift;
197 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname 281 my ($port, $iaddr) = unpack_sockaddr_in $self->{fh}->getsockname
… …
231 if (chdir $::DOCROOT) { 315 if (chdir $::DOCROOT) {
232 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike 316 $ENV{SERVER_SOFTWARE} = "thttpd-myhttpd"; # we are thttpd-alike
233 $ENV{HTTP_HOST} = $self->server_host; 317 $ENV{HTTP_HOST} = $self->server_host;
234 $ENV{HTTP_PORT} = $self->{server_host}; 318 $ENV{HTTP_PORT} = $self->{server_host};
235 $ENV{SCRIPT_NAME} = $self->{name}; 319 $ENV{SCRIPT_NAME} = $self->{name};
236 exec $::INDEXPROG; 320 exec $path;
237 } 321 }
238 Coro::State::_exit(0); 322 Coro::State::_exit(0);
239 } else { 323 } else {
240 } 324 }
241} 325}
… …
244 my $self = shift; 328 my $self = shift;
245 my $path = $self->{path}; 329 my $path = $self->{path};
246 330
247 stat $path 331 stat $path
248 or $self->err(404, "not found"); 332 or $self->err(404, "not found");
333
334 $self->{stat} = [stat _];
249 335
250 # idiotic netscape sends idiotic headers AGAIN 336 # idiotic netscape sends idiotic headers AGAIN
251 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/ 337 my $ims = $self->{h}{"if-modified-since"} =~ /^([^;]+)/
252 ? str2time $1 : 0; 338 ? str2time $1 : 0;
253 339
… …
256 if ($path !~ /\/$/) { 342 if ($path !~ /\/$/) {
257 # create a redirect to get the trailing "/" 343 # create a redirect to get the trailing "/"
258 my $host = $self->server_hostport; 344 my $host = $self->server_hostport;
259 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" }); 345 $self->err(301, "moved permanently", { Location => "http://$host$self->{uri}/" });
260 } else { 346 } else {
261 $ims < (stat _)[9] 347 $ims < $self->{stat}[9]
262 or $self->err(304, "not modified"); 348 or $self->err(304, "not modified");
263 349
264 if ($self->{method} eq "GET") { 350 if ($self->{method} eq "GET") {
265 if (-r "$path/index.html") { 351 if (-r "$path/index.html") {
266 $self->{path} .= "/index.html"; 352 $self->{path} .= "/index.html";
… …
278 } 364 }
279} 365}
280 366
281sub handle_dir { 367sub handle_dir {
282 my $self = shift; 368 my $self = shift;
283 $self->_cgi($::INDEXPROG); 369 my $idx = $self->diridx;
370
371 $self->response(200, "ok",
372 {
373 "Content-Type" => "text/html",
374 "Content-Length" => length $idx,
375 },
376 $idx);
284} 377}
285 378
286sub handle_file { 379sub handle_file {
287 my $self = shift; 380 my $self = shift;
288 my $length = -s _; 381 my $length = -s _;
… …
307 } 400 }
308 $hdr->{"Content-Range"} = "bytes */$length"; 401 $hdr->{"Content-Range"} = "bytes */$length";
309 $self->err(416, "not satisfiable", $hdr); 402 $self->err(416, "not satisfiable", $hdr);
310 403
311satisfiable: 404satisfiable:
405 # check for segmented downloads
406 if ($l && $::NO_SEGMENTED) {
407 if (%{$uri{$self->{remote_addr}}{$self->{uri}}} > 1) {
408 $self->err(400, "segmented downloads are not allowed");
409 }
410 }
411
312 $hdr->{"Content-Range"} = "bytes $l-$h/$length"; 412 $hdr->{"Content-Range"} = "bytes $l-$h/$length";
313 @code = (206, "partial content"); 413 @code = (206, "partial content");
314 $length = $h - $l + 1; 414 $length = $h - $l + 1;
315 415
316ignore: 416ignore:
317 } else { 417 } else {
318 ($l, $h) = (0, $length - 1); 418 ($l, $h) = (0, $length - 1);
319 } 419 }
320 420
321 if ($self->{path} =~ /\.html$/) { 421 $self->{path} =~ /\.([^.]+)$/;
322 $hdr->{"Content-Type"} = "text/html";
323 } else {
324 $hdr->{"Content-Type"} = "application/octet-stream"; 422 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
325 }
326
327 $hdr->{"Content-Length"} = $length; 423 $hdr->{"Content-Length"} = $length;
328 424
329 $self->print_response(@code, $hdr, ""); 425 $self->response(@code, $hdr, "");
330 426
331 if ($self->{method} eq "GET") { 427 if ($self->{method} eq "GET") {
332 my ($fh, $buf); 428 my ($fh, $buf);
333 open $fh, "<", $self->{path} 429 open $fh, "<", $self->{path}
334 or die "$self->{path}: late open failure ($!)"; 430 or die "$self->{path}: late open failure ($!)";
… …
339 } 435 }
340 436
341 $h -= $l - 1; 437 $h -= $l - 1;
342 438
343 while ($h > 0) { 439 while ($h > 0) {
344 $h -= sysread $fh, $buf, $h > 4096 ? 4096 : $h; 440 $h -= sysread $fh, $buf, $h > $::BUFSIZE ? $::BUFSIZE : $h;
345 print {$self->{fh}} $buf 441 my $w = $self->{fh}->syswrite($buf)
346 or last; 442 or last;
443 $::written += $w;
444 $self->{written} += $w;
347 } 445 }
348 } 446 }
349 447
350 close $fh; 448 close $fh;
351} 449}
450
4511;

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