Annotation of loncom/lonhttpd, revision 1.8
1.1 www 1: #!/usr/bin/perl
1.8 ! albertel 2: # $Id: lonhttpd,v 1.7 2003/05/02 21:03:19 www Exp $
1.1 www 3:
1.6 albertel 4: $VERSION = "1.3.2 (Demonic/Linux/LON-CAPA Derivative $Revison$)";
1.1 www 5:
1.3 www 6: # HTTPi Hypertext Tiny Truncated Process Implementation
7: # Copyright 1999-2001 Cameron Kaiser # All rights reserved
8: # Please read LICENSE # Do not strip this copyright message.
9: #
10: # LON-CAPA: find httpi license and readme at CVS loncom/license
11: #
12:
1.6 albertel 13: use lib '/home/httpd/lib/perl/';
14: use LONCAPA::Configuration();
15: %loncapavar=%{&LONCAPA::Configuration::read_conf('loncapa.conf')};
16: $port_to_use=$loncapavar{'lonhttpdPort'};
17: if (!defined($port_to_use)) {
18: $port_to_use='8080';
19: }
20:
21: # The main server is running on 80, so exit in this case
22: if ($port_to_use eq '80') { die('Apache is already on Port 80'); }
23:
1.3 www 24: %system_content_types =
25: ("html" => "text/html",
26: "htm" => "text/html",
27: "wml" => "text/vnd.wap.wml",
28: "wbmp" => "image/vnd.wap.wbmp",
29: "wbm" => "image/vnd.wap.wbmp",
30: "xbm" => "image/x-xbitmap",
31: "pdf" => "application/pdf",
32: "fdf" => "application/vnd.fdf",
33: "bin" => "application/octet-stream",
34: "class" => "application/octet-stream",
35: "jar" => "application/octet-stream",
36: "js" => "application/x-javascript",
37: "lnk" => "application/x-hyperlink",
38: "wav" => "audio/x-wav",
39: "mp3" => "audio/x-mpeg",
40: "tif" => "image/tiff",
41: "tiff" => "image/tiff",
42: "mid" => "audio/x-midi",
43: "txt" => "text/plain",
44: "gif" => "image/gif",
45: "sit" => "application/x-stuffit",
46: "zip" => "application/x-zip-compressed",
47: "lzh" => "application/octet-stream",
48: "lha" => "application/octet-stream",
49: "gz" => "application/x-gzip",
50: "mov" => "movie/quicktime",
51: "mpeg" => "video/mpeg",
52: "mpg" => "video/mpeg",
53: "jpeg" => "image/jpeg",
54: "jpg" => "image/jpeg");
55:
56: $logfile = "/home/httpd/perl/logs/lonhttpd.log";
57:
58: # Write out PID
59:
60: $pidfile="/home/httpd/perl/logs/lonhttpd.pid";
61:
62: if (-e $pidfile) {
63: open(LFH,"$pidfile");
64: my $pide=<$LFH>;
65: chomp($pide);
66: close(LFH);
67: if (kill 0 => $pide) { die "already running"; }
68: }
69:
70: $path = "/home/httpd/html";
71: $sockaddr = 'S n a4 x8';
1.1 www 72:
73:
1.3 www 74: %content_types =
75: ("html" => "text/html",
76: "htm" => "text/html");
77: %restrictions =
78: ("/" => "#.##", # deny everything
79: "/res/adm" => ".###", # allow /res/adm
80: "/adm" => ".###", # allow /adm
81: "/status" => ".####lonadm:oeRooOvb3HtpI");
82: # See documentation for interpreting this string.
83:
84: $headers = <<"EOF";
85: Server: HTTPi/$VERSION
86: MIME-Version: 1.0
87: EOF
88:
89: %virtual_files =
90: (
91: "/adm/lonLCDfont/0.gif" => [ "image/gif", "FILE",
92: "/home/httpd/html/adm/lonLCDfont/0.gif" ] ,
93: "/adm/lonLCDfont/1.gif" => [ "image/gif", "FILE",
94: "/home/httpd/html/adm/lonLCDfont/1.gif" ] ,
95: "/adm/lonLCDfont/2.gif" => [ "image/gif", "FILE",
96: "/home/httpd/html/adm/lonLCDfont/2.gif" ] ,
97: "/adm/lonLCDfont/3.gif" => [ "image/gif", "FILE",
98: "/home/httpd/html/adm/lonLCDfont/3.gif" ] ,
99: "/adm/lonLCDfont/4.gif" => [ "image/gif", "FILE",
100: "/home/httpd/html/adm/lonLCDfont/4.gif" ] ,
101: "/adm/lonLCDfont/5.gif" => [ "image/gif", "FILE",
102: "/home/httpd/html/adm/lonLCDfont/5.gif" ] ,
103: "/adm/lonLCDfont/6.gif" => [ "image/gif", "FILE",
104: "/home/httpd/html/adm/lonLCDfont/6.gif" ] ,
105: "/adm/lonLCDfont/7.gif" => [ "image/gif", "FILE",
106: "/home/httpd/html/adm/lonLCDfont/7.gif" ] ,
107: "/adm/lonLCDfont/8.gif" => [ "image/gif", "FILE",
108: "/home/httpd/html/adm/lonLCDfont/8.gif" ] ,
109: "/adm/lonLCDfont/9.gif" => [ "image/gif", "FILE",
110: "/home/httpd/html/adm/lonLCDfont/9.gif" ] ,
111: "/adm/lonLCDfont/a.gif" => [ "image/gif", "FILE",
112: "/home/httpd/html/adm/lonLCDfont/a.gif" ] ,
113: "/adm/lonLCDfont/b.gif" => [ "image/gif", "FILE",
114: "/home/httpd/html/adm/lonLCDfont/b.gif" ] ,
115: "/adm/lonLCDfont/c.gif" => [ "image/gif", "FILE",
116: "/home/httpd/html/adm/lonLCDfont/c.gif" ] ,
117: "/adm/lonLCDfont/d.gif" => [ "image/gif", "FILE",
118: "/home/httpd/html/adm/lonLCDfont/d.gif" ] ,
119: "/adm/lonLCDfont/e.gif" => [ "image/gif", "FILE",
120: "/home/httpd/html/adm/lonLCDfont/e.gif" ] ,
121: "/adm/lonLCDfont/f.gif" => [ "image/gif", "FILE",
122: "/home/httpd/html/adm/lonLCDfont/f.gif" ] ,
123: "/adm/lonLCDfont/g.gif" => [ "image/gif", "FILE",
124: "/home/httpd/html/adm/lonLCDfont/g.gif" ] ,
125: "/adm/lonLCDfont/h.gif" => [ "image/gif", "FILE",
126: "/home/httpd/html/adm/lonLCDfont/h.gif" ] ,
127: "/adm/lonLCDfont/i.gif" => [ "image/gif", "FILE",
128: "/home/httpd/html/adm/lonLCDfont/i.gif" ] ,
129: "/adm/lonLCDfont/j.gif" => [ "image/gif", "FILE",
130: "/home/httpd/html/adm/lonLCDfont/j.gif" ] ,
131: "/adm/lonLCDfont/k.gif" => [ "image/gif", "FILE",
132: "/home/httpd/html/adm/lonLCDfont/k.gif" ] ,
133: "/adm/lonLCDfont/l.gif" => [ "image/gif", "FILE",
134: "/home/httpd/html/adm/lonLCDfont/l.gif" ] ,
135: "/adm/lonLCDfont/m.gif" => [ "image/gif", "FILE",
136: "/home/httpd/html/adm/lonLCDfont/m.gif" ] ,
137: "/adm/lonLCDfont/n.gif" => [ "image/gif", "FILE",
138: "/home/httpd/html/adm/lonLCDfont/n.gif" ] ,
139: "/adm/lonLCDfont/o.gif" => [ "image/gif", "FILE",
140: "/home/httpd/html/adm/lonLCDfont/o.gif" ] ,
141: "/adm/lonLCDfont/p.gif" => [ "image/gif", "FILE",
142: "/home/httpd/html/adm/lonLCDfont/p.gif" ] ,
143: "/adm/lonLCDfont/q.gif" => [ "image/gif", "FILE",
144: "/home/httpd/html/adm/lonLCDfont/q.gif" ] ,
145: "/adm/lonLCDfont/r.gif" => [ "image/gif", "FILE",
146: "/home/httpd/html/adm/lonLCDfont/r.gif" ] ,
147: "/adm/lonLCDfont/s.gif" => [ "image/gif", "FILE",
148: "/home/httpd/html/adm/lonLCDfont/s.gif" ] ,
149: "/adm/lonLCDfont/t.gif" => [ "image/gif", "FILE",
150: "/home/httpd/html/adm/lonLCDfont/t.gif" ] ,
151: "/adm/lonLCDfont/u.gif" => [ "image/gif", "FILE",
152: "/home/httpd/html/adm/lonLCDfont/u.gif" ] ,
153: "/adm/lonLCDfont/v.gif" => [ "image/gif", "FILE",
154: "/home/httpd/html/adm/lonLCDfont/v.gif" ] ,
155: "/adm/lonLCDfont/w.gif" => [ "image/gif", "FILE",
156: "/home/httpd/html/adm/lonLCDfont/w.gif" ] ,
157: "/adm/lonLCDfont/x.gif" => [ "image/gif", "FILE",
158: "/home/httpd/html/adm/lonLCDfont/x.gif" ] ,
159: "/adm/lonLCDfont/y.gif" => [ "image/gif", "FILE",
160: "/home/httpd/html/adm/lonLCDfont/y.gif" ] ,
161: "/adm/lonLCDfont/z.gif" => [ "image/gif", "FILE",
162: "/home/httpd/html/adm/lonLCDfont/z.gif" ] ,
163: "/adm/lonLCDfont/colon.gif" => [ "image/gif", "FILE",
164: "/home/httpd/html/adm/lonLCDfont/colon.gif" ] ,
165: "/adm/lonLCDfont/slash.gif" => [ "image/gif", "FILE",
166: "/home/httpd/html/adm/lonLCDfont/slash.gif" ] ,
167: "/adm/lonLCDfont/hyphen.gif" => [ "image/gif", "FILE",
168: "/home/httpd/html/adm/lonLCDfont/hyphen.gif" ] ,
169: "/adm/lonLCDfont/space.gif" => [ "image/gif", "FILE",
170: "/home/httpd/html/adm/lonLCDfont/space.gif" ] ,
171: );
172:
173: %content_types = (%system_content_types, %content_types);
174: undef %system_content_types;
175:
176: while (($file, $arrayref) = each(%virtual_files)) {
177: my ($mime, $type, $block) = (@{ $arrayref });
178: next if ($type ne 'FILE');
179: if(open(S, "$block")) {
180: $j = $/; undef $/; $virtual_files{$file}->[2] = scalar(<S>);
181: $/ = $j; close(S);
182: } else {
183: warn "while getting virtual file $file: $!\n";
184: map_delete(%virtual_files, $file);
185: }
186: }
187: if ($pid = fork()) { exit; }
188:
189: #
190: # Store parent PID
191: #
1.1 www 192:
1.3 www 193: open (PIDSAVE,">$pidfile");
1.1 www 194: print PIDSAVE "$$\n";
195: close(PIDSAVE);
196:
1.5 albertel 197: $0 = "lonhttpd: (dhttpi) binding port ...";
1.6 albertel 198: $bindthis = pack($sockaddr, 2, $port_to_use,
199: pack('l', chr(0).chr(0).chr(0).chr(0)));
1.3 www 200: socket(S, 2, 1, 6);
201: setsockopt(S, 1, 2, 1);
1.6 albertel 202: bind(S, $bindthis) || die("$0: while binding port $port_to_use:\n\"$!\"\n");
1.3 www 203: listen(S, 128);
1.6 albertel 204: $0 = "lonhttpd: (dhttpi) connected and waiting ANY:$port_to_use";
1.3 www 205:
206: $statiosuptime = time();
207:
208: ###############################################################
209: # WHITE HATS ONLY BELOW THIS POINT -- SEE DOCUMENTATION FIRST #
210: ###############################################################
211:
212: sub sock_to_host {
213: local($sock) = getpeername(STDIN);
214:
215: return (undef, undef, undef) if (!$sock);
216: local($AFC, $port, $thataddr, $zero) = unpack($sockaddr, $sock);
217: local($ip) = join('.', unpack("C4", $thataddr));
218: return ($ip, $port, $ip);
219: }
220:
221: sub htsponse {
222: ($currentcode, $currentstring) = (@_);
223: return if (0+$httpver < 1);
224: local($what) = <<"EOF";
225: HTTP/$httpver $currentcode $currentstring
226: ${headers}Date: $rfcdate
227: EOF
228: $what =~ s/\n/\r\n/g;
229: print stdout $what;
230: &hthead("Connection: close") if (0+$httpver > 1);
231: }
232:
233: sub hthead {
234: local($header, $term) = (@_);
235: return if (0+$httpver < 1);
236: print stdout "$header\r\n" , ($term) ? "\r\n" : "";
237: }
238:
239: sub htcontent {
240: local($what, $ctype, $mode) = (@_);
241: ($contentlength) = $mode || length($what);
242: &hthead("Content-Length: $contentlength");
243: &hthead("Content-Type: $ctype", 1);
244: return if ($method eq 'HEAD' || $mode);
245: print stdout $what;
246: }
247:
248: sub log {
249: if (open(J, ">>$logfile")) {
250: local $q = $address . (($variables) ? "?$variables" : "");
251: $contentlength += 0;
252: $contentlength = 0 if ($method eq 'HEAD');
253: local ($hostname, $port, $ip) = &sock_to_host();
254: $hostname = $hostname || "-";
255: $httpuser = $httpuser || "-";
256: print J <<"EOF";
257: $hostname - $httpuser [$date] "$method $q HTTP/$httpver" $currentcode $contentlength "$httpref" "$httpua"
258: EOF
259: close(J); }
260: }
261:
262:
263: sub bye { unlink($pidfile); exit; }
264:
265: sub dead {
266: &htsponse(500, "Server Error");
267: &hterror("Server Error", <<"EOF");
268: While handling a request for resource $address, the server crashed. Please
269: attempt to notify the administrators.
270: <p>Useful(?) debugging information:
271: <pre>
272: @_
273: </pre>
274: EOF
275: &log; unlink($pidfile); exit;
276: }
277:
278: $SIG{'__DIE__'} = \&dead;
279: $SIG{'ALRM'} = $SIG{'TERM'} = $SIG{'INT'} = \&bye;
280:
281: sub master {
1.5 albertel 282: $0 = "lonhttpd: (dhttpi) handling request";
1.3 www 283: # $sock = getpeername(STDIN);
284: $rfcdate = scalar gmtime;
285: ($dow, $mon, $dt, $tm, $yr) = ($rfcdate =~
286: m/(...) (...) (..) (..:..:..) (....)/);
287: $dt += 0; $yr += 0;
288: $rfcdate = "$dow, $dt $mon $yr $tm GMT";
289: $date = scalar localtime;
290: ($dow, $mon, $dt, $tm, $yr) = ($date =~
291: m/(...) (...) (..) (..:..:..) (....)/);
292: $dt += 0;
293: $dt = substr("0$dt", length("0$dt") - 2, 2);
294: $date = "$dt/$mon/$yr:$tm +0000";
295:
296: select(STDOUT); $|=1; $address = 0;
297: alarm 1;
298: while (<STDIN>) {
1.8 ! albertel 299: if(/^([A-Z]+)\s+(\S+)\s+(\S*)/) {
1.3 www 300: $method = $1;
301: $address = $2;
302: $httpver = $3;
303: $httpref = '';
304: $httpua = '';
305: $httpver = ($httpver =~ m#HTTP/([0-9]\.[0-9]+)#) ?
306: ($1) : (0.9);
307: $address =~ s#^http://[^/]+/#/#;
308: next unless ($httpver < 1);
309: } else {
310: s/[\r\l\n\s]+$//;
311: (/^Host: (.+)/i) && ($httphost = $1) && ($httphost =~
312: s/:\d+$//);
313: (/^Referer: (.+)/i) && ($httpref = $1);
314: (/^User-agent: (.+)/i) && ($httpua = $1);
315: (/^Content-length: (\d+)/i) && ($ENV{'CONTENT_LENGTH'} =
316: $httpcl = $1);
317: (/^Content-type: (.+)/i) && ($ENV{'CONTENT_TYPE'} =
318: $httpct = $1);
319: (/^Expect: /) && ($expect = 1);
320: (/^Authorization: Basic (.+)/i) && ($httprawu = $1);
321: (/^Range: (.+)/i) && ($ENV{'CONTENT_RANGE'} = $1);
322: next unless (/^$/);
323: }
324: if ($expect) {
325: &htsponse(417, "Expectation Failed");
326: &hterror("Expectation Failed",
327: "The server does not support this method.");
328: &log; exit;
329: }
330: if (!$address || (0+$httpver > 1 && !$httphost)) {
331: &htsponse(400, "Bad Request");
332: &hterror("Bad Request",
333: "The server cannot understand your request.");
334: &log; exit;
335: }
336: if ($method !~ /^(GET|HEAD|POST)$/) {
337: &htsponse(501, "Illegal Method");
338: &hterror("Illegal Method",
339: "Only GET, HEAD and POST are supported.");
340: &log; exit;
341: }
342: ($address, $variables) = split(/\?/, $address);
343: $address =~ s/%([0-9a-fA-F]{2})/pack("H2", $1)/eg;
344: $address=~ s#^/?#/#;
345: 1 while $address =~ s#/\.(/|$)#\1#;
346: 1 while $address =~ s#/[^/]*/\.\.(/|$)#\1#;
347: 1 while $address =~ s#^/\.\.(/|$)#\1#;
348: $fail = 0;
349: #
350: # Heavily customized for LON-CAPA
351: #
1.4 www 352: $address=~s/\/+/\//g;
1.3 www 353: unless ($address=~/^\/(status|adm\/|res\/adm\/)/) { $fail=1; }
354: #
355: # because existing restriction matrix would not do precedence across rules
356: #
357: # J: foreach(sort { length $a <=> length $b }
358: # keys %restrictions) {
359: # next if ($address !~ /^$_/);
360: # ($allowip, $denyip, $allowua, $denyua, $auser) =
361: # split(/#/, $restrictions{$_});
362: # if ($allowip || $denyip) {
363: # ($hostname, $port, $ip) = &sock_to_host();
364: # ($allowip && $ip !~ /$allowip/) && ($fail = 1,
365: # last J);
366: # ($denyip && $ip =~ /$denyip/) && ($fail = 1,
367: # last J);
368: # }
369: # ($allowua && $httpua !~ /$allowua/) &&
370: # ($fail = 2, last J);
371: # ($denyua && $httpua =~ /$denyua/) &&
372: # ($fail = 2, last J);
373: # }
374: if ($fail) {
375: &htsponse(403, "Forbidden");
376: if ($fail == 1) {
1.7 www 377: &hterror("Wrong URL", <<"EOF");
378: You might want to remove the "<tt>:$port_to_use</tt>" from the web page address (URL).
1.3 www 379: EOF
380: &log; exit;
381: } else {
382: &hterror("Forbidden (Browser Disallowed)", <<"EOF");
383: The browser you are using (<i>$httpua</i>) is not capable of or
384: is not allowed access to this resource.
385: EOF
386: &log; exit;
387: }
388: }
389: if ($auser) {
390: $httprawu =~ tr#A-Za-z0-9+/##cd;
391: $httprawu =~ tr#A-Za-z0-9+/# -_#;
392: $httprawu = unpack("u", pack("c", 32+0.75*length($httprawu))
393: . $httprawu);
394: ($httpuser, $httppw) = split(/:/, $httprawu);
395: $fail = 1;
396: foreach $user (split(/,/, $auser)) {
397: ($user, $pw) = split(/:/, $user);
398: ($fail = 0, last) if ($user eq $httpuser &&
399: crypt($httppw, substr($pw, 0, 2)) eq $pw);
400: }
401: if ($fail) {
402: $httpuser = '';
403: &htsponse(401, "Authorization Required");
404: &hthead("WWW-Authenticate: Basic realm=\"$address\"");
405: &hterror("Authorization Required", <<"EOF");
406: You must provide a username and password to use this resource. Either you
407: entered this information incorrectly, or your browser does not know how to
408: present the credentials required.
409: EOF
410: &log; exit;
411: }
412: }
1.1 www 413:
1.3 www 414: alarm 0;
415:
416: if ($address eq '/status') {
417: &htsponse(200, "OK");
418: $contentlength = 0; # kludge
419: &log;
420: if(open(S, $logfile)) {
421: seek(S, -5000, 2);
422: undef $/;
423: $logsnap = <S>;
424: $logsnap =~ s/^[^\n]+\n//s if
425: (length($logsnap) > 4999);
426: close(S);
427: }
428: $p = (time() - $statiosuptime);
429: $rps = $p/$statiosreq;
430: $d = int($p / 86400); $p -= $d * 86400;
431: $h = int($p / 3600); $p -= $h * 3600;
432: $m = int($p / 60); $s = $p - ($m * 60);
433: ("0$s" =~ /(\d{2})$/) && ($s = $1);
434: ("0$m" =~ /(\d{2})$/) && ($m = $1);
435: $h +=0; $d += 0;
436: $suptime = scalar localtime $statiosuptime;
437: &htcontent(<<"EOF", "text/html");
438: <html>
439: <head>
440: <title>
1.5 albertel 441: LonHTTPD (HTTPi) Status
1.3 www 442: </title>
443: </head>
444: <body bgcolor = "#ffffff" text = "#000000" vlink = "#0000ff" link = "#0000ff">
1.5 albertel 445: <h1>LonHTTPD (HTTPi) Server Status (<code>$VERSION</code>)</h1>
1.6 albertel 446: <h3>lonhttpd on port $port_to_use</h3>
1.3 www 447: <b>Started at:</b> $suptime<br>
448: <b>Uptime:</b> $d days, $h:$m:$s<br>
449: <b>Last request time:</b> $statiosltr<p>
450: <b>Requests received:</b> $statiosreq<br>
451: <b>Average time between requests:</b> ${rps}s
452: <p>
453: <b>Most recent requests:</b>
454: <form action = "/status" method = "post">
455: <textarea name = "bletch" rows = "8" cols = "70">
456: $logsnap
457: </textarea>
458: </form>
459: <hr>
460: <address>maintained by <a href =
461: "http://httpi.floodgap.com/">httpi/$VERSION</a></address>
462: </body>
463: </html>
464: EOF
465: exit;
466: }
467: if (defined $virtual_files{$address}) {
468: $virt_buffer = 1;
469: $mtime = $statiosuptime; # thus always needed
470: goto SERVEIT; # yes, it's bad but it's fast
471: }
472: $raddress = "$path$address"
473: ;
474: &hterror301("$address/")
475: if ($address !~ m#/$# && -d $raddress);
476: $raddress = "${raddress}index.html" if (-d $raddress);
477: if(!sysopen(S, $raddress, 0)) { &hterror404; } else {
478: if (-x $raddress) {
479: $currentcode = 100;
480: &log;
481: if (!$<) {
482: ($x,$x,$x,$x,$uid,$gid) = stat(S);
483: (!$uid || !$gid) &&
484: die "executable is root-owned";
485: $> = $uid || die "can't set effuid";
486: $) = $gid || die "can't set effgid";
487: }
488: ($hostname, $port, $ip) = &sock_to_host() if (!$port);
489: $ENV{'REQUEST_METHOD'} = $method;
490: $ENV{'SERVER_NAME'} = "localhost";
491: $ENV{'SERVER_PROTOCOL'} = "HTTP/$httpver";
492: $ENV{'SERVER_SOFTWARE'} = "HTTPi/$VERSION";
1.6 albertel 493: $ENV{'SERVER_PORT'} = "$port_to_use";
494: $ENV{'SERVER_URL'} = "http://localhost:$port_to_use/";
1.3 www 495: $ENV{'SCRIPT_FILENAME'} = $raddress;
496: $ENV{'SCRIPT_NAME'} = $address;
497: $ENV{'REMOTE_HOST'} = $hostname;
498: $ENV{'REMOTE_ADDR'} = $ip;
499: $ENV{'REMOTE_PORT'} = $port;
500: $ENV{'QUERY_STRING'} = $variables;
501: $ENV{'HTTP_USER_AGENT'} = $httpua;
502: $ENV{'HTTP_REFERER'} = $httpref;
503: if ($pid = fork()) { exit; } else {
504: if ($method eq 'POST') { # needs stdin
505: open(W, "|$raddress") || die
506: "can't POST to $raddress";
507: read(STDIN, $buf, $httpcl);
508: print W $buf;
509: exit;
510: }
511: exec "$raddress", "$variables";
512: die "exec() returned -1";
513: }
514: }
515: ($x,$x,$x,$x,$x,$x,$x,$length,$x,$mtime) = stat(S);
516: $ctype = 0;
517: foreach(keys %content_types) {
518: if ($raddress =~ /\.$_$/i) {
519: $ctype = $content_types{$_};
520: }
521: }
522: SERVEIT: $ctype ||= 'text/plain';
523: &htsponse(200, "OK");
524: $mtime = scalar gmtime $mtime;
525: ($dow, $mon, $dt, $tm, $yr) =
526: ($mtime =~ m/(...) (...) (..) (..:..:..) (....)/);
527: $dt += 0; $yr += 0;
528: &hthead("Last-Modified: $dow, $dt $mon $yr $tm GMT");
529: if ($pid = fork()) { exit; }
530: if ($virt_buffer) {
531: &htcontent($virtual_files{$address}->[2],
532: $virtual_files{$address}->[0], 0);
533: } else {
534: &htcontent("", $ctype, $length);
535: unless ($method eq 'HEAD') {
536: while(!eof(S)) {
537: read(S, $q, 16384);
538: print stdout $q;
539: }
540: }
541: }
542: alarm 0;
543: }
544: &log;
545: exit;
546: }
1.1 www 547:
1.3 www 548: exit;
549: }
550:
551:
552: sub hterror {
553: local($errstr, $expl) = (@_);
554: &htcontent(<<"EOF", "text/html");
555: <html>
556: <body>
557: <h1>$errstr</h1>
558: $expl
559: <hr>
560: <address><a href = "http://httpi.floodgap.com/">httpi/$VERSION</a>
561: by Cameron Kaiser</address>
562: </body>
563: </html>
564: EOF
565: }
566:
567: sub hterror404 {
568: &htsponse(404, "File Not Found");
569: &hterror("File Not Found",
570: "The resource $address was not found on this system.");
571: }
572:
573: sub hterror301 {
574: &htsponse(301, "Moved Permanently");
575: &hthead("Location: @_");
576: &hterror("Resource Moved Permanently",
577: "This resource has moved <a href = \"@_\">here</a>.");
578: $keep = 0; &log; exit;
579: }
1.1 www 580:
581: for (;;) {
1.3 www 582: $addr=accept(NS,S);
583: $statiosltr = scalar localtime;
584: $statiosreq++;
585: if ($pid = fork()) {
1.5 albertel 586: $0 = "lonhttpd: (dhttpi) waiting for child process";
1.3 www 587: waitpid($pid, 0);
1.6 albertel 588: $0 = "lonhttpd: (dhttpi) on ANY:$port_to_use, last request " .
1.3 www 589: scalar localtime;
590: } else {
1.5 albertel 591: $0 = "lonhttpd: (dhttpi) child switching to socket";
1.3 www 592: open(STDIN, "<&NS");
593: open(STDOUT, ">&NS");
594: &master;
595: exit;
596: }
1.1 www 597: }
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