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/cvs/Coro/myhttpd/httpd.pl
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Comparing Coro/myhttpd/httpd.pl (file contents):
Revision 1.1 by root, Thu Aug 9 02:57:54 2001 UTC vs.
Revision 1.12 by root, Sat Aug 11 23:10:56 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 => 1,
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 $self;
110}
111
112sub DESTROY {
113 my $self = shift;
114 delete $conn{$self->{remote_addr}}{$self*1};
115 delete $uri{$self->{uri}}{$self*1};
83} 116}
84 117
85sub slog { 118sub slog {
86 main::slog(@_); 119 my $self = shift;
120 main::slog($_[0], "$self->{remote_addr}> $_[1]");
87} 121}
88 122
89sub print_response { 123sub response {
90 my ($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";
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
135 $res .= $content if defined $content and $self->{method} eq "GET";
136
137 print STDERR "$self->{remote_addr} \"$self->{uri}\" $code ".$hdr->{"Content-Length"}." \"$self->{h}{referer}\"\n";#d#
138
139 $self->{written} +=
100 print {$self->{fh}} $res; 140 print {$self->{fh}} $res;
101} 141}
102 142
103sub err { 143sub 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;
114
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::;
156}
157
158sub err_blocked {
159 my $self = shift;
160 my $ip = $self->{remote_addr};
161 my $time = time2str $blocked{$ip} = $::NOW + $::BLOCKTIME;
162
163 Coro::Event::do_timer(after => 5);
164
165 $self->err(403, "too many connections",
166 {
167 "Content-Type" => "text/html",
168 "Retry-After" => $::BLOCKTIME
169 },
170 <<EOF);
171<html><p>
172You have been blocked because you opened too many connections. You
173may retry at</p>
174
175 <p><blockquote>$time.</blockquote></p>
176
177<p>Until then, each new access will renew the block. You might want to have a
178look at the <a href="http://www.goof.com/pcg/marc/animefaq.html">FAQ</a>.</p>
179</html>
180EOF
118} 181}
119 182
120sub handle { 183sub 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");
197
198 my $ip = $self->{remote_addr};
199
200 if ($blocked{$ip}) {
201 $self->err_blocked($blocked{$ip})
202 if $blocked{$ip} > $::NOW;
203
204 delete $blocked{$ip};
205 }
206
207 if (%{$conn{$ip}} > $::MAX_CONN_IP) {
208 $self->slog(2, "blocked ip $ip");
209 $self->err_blocked;
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} = $self->{h}{host} =~ s/:([0-9]+)$// ? $1 : 80;
168 245
246 weaken ($uri{$self->{uri}}{$self*1} = $self);
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";
272
273 $self->access_check;
193} 274}
194 275
195sub server_address { 276sub 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");
330
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
281sub handle_dir { 364sub handle_dir {
282 my $self = shift; 365 my $self = shift;
283 $self->_cgi($::INDEXPROG); 366 my $idx = $self->diridx;
367
368 $self->response(200, "ok",
369 {
370 "Content-Type" => "text/html",
371 "Content-Length" => length $idx,
372 },
373 $idx);
284} 374}
285 375
286sub handle_file { 376sub 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", $hdr);
310 400
311satisfiable: 401satisfiable:
402 # check for segmented downloads
403 if ($l && $::NO_SEGMENTED) {
404 if (%{$uri{$self->{uri}}} > 1) {
405 $self->err(400, "segmented downloads are not allowed");
406 }
407 }
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 - $l + 1;
315 412
316ignore: 413ignore:
317 } else { 414 } else {
318 ($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";
323 } else {
324 $hdr->{"Content-Type"} = "application/octet-stream"; 419 $hdr->{"Content-Type"} = $mimetype{lc $1} || "application/octet-stream";
325 }
326
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;
440 $::written += $w;
441 $self->{written} += $w;
347 } 442 }
348 } 443 }
349 444
350 close $fh; 445 close $fh;
351} 446}
447
4481;

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