Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.155
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
4: # Functions for use by content handlers:
5: #
1.112 harris41 6: # metadata_query(sql-query-string,custom-metadata-regex) :
7: # returns file handle of where sql and
8: # regex results will be stored for query
1.12 www 9: # plaintext(short) : plain text explanation of short term
1.25 www 10: # fileembstyle(ext) : embed style in page for file extension
11: # filedescription(ext) : descriptor text for file extension
1.29 www 12: # allowed(short,url) : returns codes for allowed actions
13: # F: full access
14: # U,I,K: authentication modes (cxx only)
15: # '': forbidden
16: # 1: user needs to choose course
17: # 2: browse allowed
1.21 www 18: # definerole(rolename,sys,dom,cou) : define a custom role rolename
1.103 harris41 19: # set privileges in format of lonTabs/roles.tab for
1.21 www 20: # system, domain and course level,
21: # assignrole(udom,uname,url,role,end,start) : give a role to a user for the
22: # level given by url. Optional start and end dates
23: # (leave empty string or zero for "no date")
24: # assigncustomrole (udom,uname,url,rdom,rnam,rolename,end,start) : give a
25: # custom role to a user for the level given by url.
26: # Specify name and domain of role author, and role name
27: # revokerole (udom,uname,url,role) : Revoke a role for url
28: # revokecustomrole (udom,uname,url,rdom,rnam,rolename) : Revoke a custom role
1.24 www 29: # appenv(hash) : adds hash to session environment
1.56 www 30: # delenv(varname) : deletes all environment entries starting with varname
1.124 www 31: # store(hashref,symb,courseid,udom,uname)
1.122 albertel 32: # : stores hash permanently for this url
33: # hashref needs to be given, and should be a \%hashname
34: # the remaining args aren't required and if they aren't
35: # passed or are '' they will be derived from the ENV
1.124 www 36: # cstore(hashref,symb,courseid,udom,uname)
1.122 albertel 37: # : same as store but uses the critical interface to
38: # guarentee a store
1.124 www 39: # restore(symb,courseid,udom,uname)
1.122 albertel 40: # : returns hash for this symb, all args are optional
1.124 www 41: # if they aren't given they will be derived from the
42: # current enviroment
1.133 albertel 43: #
44: #
1.134 albertel 45: # for the next 6 functions udom and uname are optional
1.133 albertel 46: # if supplied they use udom as the domain and uname
47: # as the username for the function (supply a courseid
48: # for the uname if you want a course database)
49: # if not supplied it uses %ENV and looks at
50: # user. attribute for the values
51: #
52: # eget(namesp,arrayref,udom,uname)
53: # : returns hash with keys from array reference filled
54: # in from namesp (encrypts the return communication)
1.131 albertel 55: # get(namesp,arrayref,udom,uname)
56: # : returns hash with keys from array reference filled
57: # in from namesp
1.133 albertel 58: # dump(namesp,udom,uname) : dumps the complete namespace into a hash
59: # del(namesp,array,udom,uname) : deletes keys out of array from namesp
1.134 albertel 60: # put(namesp,hash,udom,uname) : stores hash in namesp
61: # cput(namesp,hash,udom,uname) : critical put
1.133 albertel 62: #
63: #
1.23 www 64: # ssi(url,hash) : does a complete request cycle on url to localhost, posts
65: # hash
1.34 www 66: # coursedescription(id) : returns and caches course description for id
1.17 www 67: # repcopy(filename) : replicate file
68: # dirlist(url) : gets a directory listing
1.40 www 69: # directcondval(index) : reading condition value of single condition from
70: # state string
1.28 www 71: # condval(index) : value of condition index based on state
1.58 www 72: # EXT(name) : value of a variable
1.31 www 73: # symblist(map,hash) : Updates symbolic storage links
1.44 www 74: # symbread([filename]) : returns the data handle (filename optional)
1.155 ! albertel 75: # rndseed([symb,courseid,domain,uname])
! 76: # : returns a random seed, all arguments are optional,
! 77: # if they aren't sent it use the environment to derive
! 78: # them
! 79: # Note: if symb isn't sent and it can't get one from
! 80: # &symbread it will use the current time as it's return
1.76 www 81: # receipt() : returns a receipt to be given out to users
1.36 albertel 82: # getfile(filename) : returns the contents of filename, or a -1 if it can't
83: # be found, replicates and subscribes to the file
1.121 harris41 84: # filelocation(dir,file) : returns a fairly clean absolute reference to file
1.36 albertel 85: # from the directory dir
1.46 www 86: # hreflocation(dir,file) : same as filelocation, but for hrefs
1.47 www 87: # log(domain,user,home,msg) : write to permanent log for user
1.70 www 88: # usection(domain,user,courseid) : output of section name/number or '' for
89: # "not in course" and '-1' for "no section"
90: # userenvironment(domain,user,what) : puts out any environment parameter
91: # for a user
92: # idput(domain,hash) : writes IDs for users from hash (name=>id,name=>id)
93: # idget(domain,array): returns hash with usernames (id=>name,id=>name) for
94: # an array of IDs
95: # idrget(domain,array): returns hash with IDs for usernames (name=>id,...) for
96: # an array of names
1.73 www 97: # metadata(file,entry): returns the metadata entry for a file. entry='keys'
98: # returns a comma separated list of keys
1.12 www 99: #
1.1 albertel 100: # 6/1/99,6/2,6/10,6/11,6/12,6/14,6/26,6/28,6/29,6/30,
1.5 www 101: # 7/1,7/2,7/9,7/10,7/12,7/14,7/15,7/19,
1.8 www 102: # 11/8,11/16,11/18,11/22,11/23,12/22,
1.12 www 103: # 01/06,01/13,02/24,02/28,02/29,
104: # 03/01,03/02,03/06,03/07,03/13,
1.15 www 105: # 04/05,05/29,05/31,06/01,
106: # 06/05,06/26 Gerd Kortemeyer
107: # 06/26 Ben Tyszka
1.22 www 108: # 06/30,07/15,07/17,07/18,07/20,07/21,07/22,07/25 Gerd Kortemeyer
1.23 www 109: # 08/14 Ben Tyszka
1.36 albertel 110: # 08/22,08/28,08/31,09/01,09/02,09/04,09/05,09/25,09/28,09/30 Gerd Kortemeyer
1.35 www 111: # 10/04 Gerd Kortemeyer
1.36 albertel 112: # 10/04 Guy Albertelli
1.54 www 113: # 10/06,10/09,10/10,10/11,10/14,10/20,10/23,10/25,10/26,10/27,10/28,10/29,
1.71 www 114: # 10/30,10/31,
1.75 www 115: # 11/2,11/14,11/15,11/16,11/20,11/21,11/22,11/25,11/27,
1.83 www 116: # 12/02,12/12,12/13,12/14,12/28,12/29 Gerd Kortemeyer
1.87 www 117: # 05/01/01 Guy Albertelli
1.89 www 118: # 05/01,06/01,09/01 Gerd Kortemeyer
1.92 www 119: # 09/01 Guy Albertelli
1.102 www 120: # 09/01,10/01,11/01 Gerd Kortemeyer
1.103 harris41 121: # 02/27/01 Scott Harrison
1.104 www 122: # 3/2 Gerd Kortemeyer
1.119 harris41 123: # 3/15,3/19 Scott Harrison
1.110 www 124: # 3/19,3/20 Gerd Kortemeyer
1.123 harris41 125: # 3/22,3/27,4/2,4/16,4/17 Scott Harrison
1.125 www 126: # 5/26,5/28 Gerd Kortemeyer
1.127 ng 127: # 5/30 H. K. Ng
1.128 www 128: # 6/1 Gerd Kortemeyer
1.135 www 129: # July Guy Albertelli
1.154 www 130: # 8/4,8/7,8/8,8/9,8/11,8/16,8/17,8/18,8/20 Gerd Kortemeyer
1.128 www 131:
1.1 albertel 132: package Apache::lonnet;
133:
134: use strict;
135: use Apache::File;
1.8 www 136: use LWP::UserAgent();
1.15 www 137: use HTTP::Headers;
1.11 www 138: use vars
1.150 www 139: qw(%perlvar %hostname %homecache %hostip %spareid %hostdom %libserv %pr %prp %fe %fd $readit %metacache %packagetab);
1.1 albertel 140: use IO::Socket;
1.31 www 141: use GDBM_File;
1.8 www 142: use Apache::Constants qw(:common :http);
1.71 www 143: use HTML::TokeParser;
1.88 www 144: use Fcntl qw(:flock);
1.1 albertel 145:
146: # --------------------------------------------------------------------- Logging
147:
148: sub logthis {
149: my $message=shift;
150: my $execdir=$perlvar{'lonDaemons'};
151: my $now=time;
152: my $local=localtime($now);
153: my $fh=Apache::File->new(">>$execdir/logs/lonnet.log");
154: print $fh "$local ($$): $message\n";
155: return 1;
156: }
157:
158: sub logperm {
159: my $message=shift;
160: my $execdir=$perlvar{'lonDaemons'};
161: my $now=time;
162: my $local=localtime($now);
163: my $fh=Apache::File->new(">>$execdir/logs/lonnet.perm.log");
164: print $fh "$now:$message:$local\n";
165: return 1;
166: }
167:
168: # -------------------------------------------------- Non-critical communication
169: sub subreply {
170: my ($cmd,$server)=@_;
171: my $peerfile="$perlvar{'lonSockDir'}/$server";
172: my $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
173: Type => SOCK_STREAM,
174: Timeout => 10)
175: or return "con_lost";
176: print $client "$cmd\n";
177: my $answer=<$client>;
1.9 www 178: if (!$answer) { $answer="con_lost"; }
1.1 albertel 179: chomp($answer);
180: return $answer;
181: }
182:
183: sub reply {
184: my ($cmd,$server)=@_;
185: my $answer=subreply($cmd,$server);
186: if ($answer eq 'con_lost') { $answer=subreply($cmd,$server); }
1.65 www 187: if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
1.12 www 188: &logthis("<font color=blue>WARNING:".
189: " $cmd to $server returned $answer</font>");
190: }
1.1 albertel 191: return $answer;
192: }
193:
194: # ----------------------------------------------------------- Send USR1 to lonc
195:
196: sub reconlonc {
197: my $peerfile=shift;
198: &logthis("Trying to reconnect for $peerfile");
199: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
200: if (my $fh=Apache::File->new("$loncfile")) {
201: my $loncpid=<$fh>;
202: chomp($loncpid);
203: if (kill 0 => $loncpid) {
204: &logthis("lonc at pid $loncpid responding, sending USR1");
205: kill USR1 => $loncpid;
206: sleep 1;
207: if (-e "$peerfile") { return; }
208: &logthis("$peerfile still not there, give it another try");
209: sleep 5;
210: if (-e "$peerfile") { return; }
1.12 www 211: &logthis(
212: "<font color=blue>WARNING: $peerfile still not there, giving up</font>");
1.1 albertel 213: } else {
1.12 www 214: &logthis(
215: "<font color=blue>WARNING:".
216: " lonc at pid $loncpid not responding, giving up</font>");
1.1 albertel 217: }
218: } else {
1.12 www 219: &logthis('<font color=blue>WARNING: lonc not running, giving up</font>');
1.1 albertel 220: }
221: }
222:
223: # ------------------------------------------------------ Critical communication
1.12 www 224:
1.1 albertel 225: sub critical {
226: my ($cmd,$server)=@_;
1.89 www 227: unless ($hostname{$server}) {
228: &logthis("<font color=blue>WARNING:".
229: " Critical message to unknown server ($server)</font>");
230: return 'no_such_host';
231: }
1.1 albertel 232: my $answer=reply($cmd,$server);
233: if ($answer eq 'con_lost') {
234: my $pingreply=reply('ping',$server);
235: &reconlonc("$perlvar{'lonSockDir'}/$server");
236: my $pongreply=reply('pong',$server);
237: &logthis("Ping/Pong for $server: $pingreply/$pongreply");
238: $answer=reply($cmd,$server);
239: if ($answer eq 'con_lost') {
240: my $now=time;
241: my $middlename=$cmd;
1.5 www 242: $middlename=substr($middlename,0,16);
1.1 albertel 243: $middlename=~s/\W//g;
244: my $dfilename=
245: "$perlvar{'lonSockDir'}/delayed/$now.$middlename.$server";
246: {
247: my $dfh;
248: if ($dfh=Apache::File->new(">$dfilename")) {
1.7 www 249: print $dfh "$cmd\n";
1.1 albertel 250: }
251: }
252: sleep 2;
253: my $wcmd='';
254: {
255: my $dfh;
256: if ($dfh=Apache::File->new("$dfilename")) {
257: $wcmd=<$dfh>;
258: }
259: }
260: chomp($wcmd);
1.7 www 261: if ($wcmd eq $cmd) {
1.12 www 262: &logthis("<font color=blue>WARNING: ".
263: "Connection buffer $dfilename: $cmd</font>");
1.1 albertel 264: &logperm("D:$server:$cmd");
265: return 'con_delayed';
266: } else {
1.12 www 267: &logthis("<font color=red>CRITICAL:"
268: ." Critical connection failed: $server $cmd</font>");
1.1 albertel 269: &logperm("F:$server:$cmd");
270: return 'con_failed';
271: }
272: }
273: }
274: return $answer;
275: }
276:
1.5 www 277: # ---------------------------------------------------------- Append Environment
278:
279: sub appenv {
1.6 www 280: my %newenv=@_;
1.35 www 281: map {
282: if (($newenv{$_}=~/^user\.role/) || ($newenv{$_}=~/^user\.priv/)) {
283: &logthis("<font color=blue>WARNING: ".
1.151 www 284: "Attempt to modify environment ".$_." to ".$newenv{$_}
285: .'</font>');
1.35 www 286: delete($newenv{$_});
287: } else {
288: $ENV{$_}=$newenv{$_};
289: }
290: } keys %newenv;
1.95 www 291:
292: my $lockfh;
293: unless ($lockfh=Apache::File->new("$ENV{'user.environment'}")) {
1.97 www 294: return 'error: '.$!;
1.95 www 295: }
296: unless (flock($lockfh,LOCK_EX)) {
297: &logthis("<font color=blue>WARNING: ".
298: 'Could not obtain exclusive lock in appenv: '.$!);
299: $lockfh->close();
300: return 'error: '.$!;
301: }
302:
1.6 www 303: my @oldenv;
304: {
305: my $fh;
306: unless ($fh=Apache::File->new("$ENV{'user.environment'}")) {
1.97 www 307: return 'error: '.$!;
1.6 www 308: }
309: @oldenv=<$fh>;
1.89 www 310: $fh->close();
1.6 www 311: }
312: for (my $i=0; $i<=$#oldenv; $i++) {
313: chomp($oldenv[$i]);
1.9 www 314: if ($oldenv[$i] ne '') {
315: my ($name,$value)=split(/=/,$oldenv[$i]);
1.24 www 316: unless (defined($newenv{$name})) {
317: $newenv{$name}=$value;
318: }
1.9 www 319: }
1.6 www 320: }
321: {
322: my $fh;
323: unless ($fh=Apache::File->new(">$ENV{'user.environment'}")) {
324: return 'error';
325: }
326: my $newname;
1.93 www 327: foreach $newname (keys %newenv) {
1.6 www 328: print $fh "$newname=$newenv{$newname}\n";
329: }
1.86 albertel 330: $fh->close();
1.56 www 331: }
1.95 www 332:
333: $lockfh->close();
1.56 www 334: return 'ok';
335: }
336: # ----------------------------------------------------- Delete from Environment
337:
338: sub delenv {
339: my $delthis=shift;
340: my %newenv=();
341: if (($delthis=~/user\.role/) || ($delthis=~/user\.priv/)) {
342: &logthis("<font color=blue>WARNING: ".
343: "Attempt to delete from environment ".$delthis);
344: return 'error';
345: }
346: my @oldenv;
347: {
348: my $fh;
349: unless ($fh=Apache::File->new("$ENV{'user.environment'}")) {
350: return 'error';
351: }
1.89 www 352: unless (flock($fh,LOCK_SH)) {
353: &logthis("<font color=blue>WARNING: ".
354: 'Could not obtain shared lock in delenv: '.$!);
355: $fh->close();
356: return 'error: '.$!;
357: }
1.56 www 358: @oldenv=<$fh>;
1.89 www 359: $fh->close();
1.56 www 360: }
361: {
362: my $fh;
363: unless ($fh=Apache::File->new(">$ENV{'user.environment'}")) {
364: return 'error';
365: }
1.89 www 366: unless (flock($fh,LOCK_EX)) {
367: &logthis("<font color=blue>WARNING: ".
368: 'Could not obtain exclusive lock in delenv: '.$!);
369: $fh->close();
370: return 'error: '.$!;
371: }
1.56 www 372: map {
373: unless ($_=~/^$delthis/) { print $fh $_; }
374: } @oldenv;
1.87 www 375: $fh->close();
1.5 www 376: }
377: return 'ok';
378: }
1.1 albertel 379:
380: # ------------------------------ Find server with least workload from spare.tab
1.11 www 381:
1.1 albertel 382: sub spareserver {
383: my $tryserver;
384: my $spareserver='';
385: my $lowestserver=100;
386: foreach $tryserver (keys %spareid) {
387: my $answer=reply('load',$tryserver);
388: if (($answer =~ /\d/) && ($answer<$lowestserver)) {
389: $spareserver="http://$hostname{$tryserver}";
390: $lowestserver=$answer;
391: }
392: }
393: return $spareserver;
394: }
395:
396: # --------- Try to authenticate user from domain's lib servers (first this one)
1.11 www 397:
1.1 albertel 398: sub authenticate {
399: my ($uname,$upass,$udom)=@_;
1.12 www 400: $upass=escape($upass);
1.1 albertel 401: if (($perlvar{'lonRole'} eq 'library') &&
402: ($udom eq $perlvar{'lonDefDomain'})) {
1.3 www 403: my $answer=reply("encrypt:auth:$udom:$uname:$upass",$perlvar{'lonHostID'});
1.2 www 404: if ($answer =~ /authorized/) {
1.9 www 405: if ($answer eq 'authorized') {
406: &logthis("User $uname at $udom authorized by local server");
407: return $perlvar{'lonHostID'};
408: }
409: if ($answer eq 'non_authorized') {
410: &logthis("User $uname at $udom rejected by local server");
411: return 'no_host';
412: }
1.2 www 413: }
1.1 albertel 414: }
415:
416: my $tryserver;
417: foreach $tryserver (keys %libserv) {
418: if ($hostdom{$tryserver} eq $udom) {
1.10 www 419: my $answer=reply("encrypt:auth:$udom:$uname:$upass",$tryserver);
1.1 albertel 420: if ($answer =~ /authorized/) {
1.9 www 421: if ($answer eq 'authorized') {
422: &logthis("User $uname at $udom authorized by $tryserver");
423: return $tryserver;
424: }
425: if ($answer eq 'non_authorized') {
426: &logthis("User $uname at $udom rejected by $tryserver");
427: return 'no_host';
428: }
1.1 albertel 429: }
430: }
1.9 www 431: }
432: &logthis("User $uname at $udom could not be authenticated");
1.1 albertel 433: return 'no_host';
434: }
435:
436: # ---------------------- Find the homebase for a user from domain's lib servers
1.11 www 437:
1.1 albertel 438: sub homeserver {
439: my ($uname,$udom)=@_;
440:
441: my $index="$uname:$udom";
442: if ($homecache{$index}) { return "$homecache{$index}"; }
443:
444: my $tryserver;
445: foreach $tryserver (keys %libserv) {
446: if ($hostdom{$tryserver} eq $udom) {
447: my $answer=reply("home:$udom:$uname",$tryserver);
448: if ($answer eq 'found') {
449: $homecache{$index}=$tryserver;
450: return $tryserver;
451: }
452: }
453: }
454: return 'no_host';
1.70 www 455: }
456:
457: # ------------------------------------- Find the usernames behind a list of IDs
458:
459: sub idget {
460: my ($udom,@ids)=@_;
461: my %returnhash=();
462:
463: my $tryserver;
464: foreach $tryserver (keys %libserv) {
465: if ($hostdom{$tryserver} eq $udom) {
466: my $idlist=join('&',@ids);
467: $idlist=~tr/A-Z/a-z/;
468: my $reply=&reply("idget:$udom:".$idlist,$tryserver);
469: my @answer=();
1.76 www 470: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
1.70 www 471: @answer=split(/\&/,$reply);
472: } ;
473: my $i;
474: for ($i=0;$i<=$#ids;$i++) {
475: if ($answer[$i]) {
476: $returnhash{$ids[$i]}=$answer[$i];
477: }
478: }
479: }
480: }
481: return %returnhash;
482: }
483:
484: # ------------------------------------- Find the IDs behind a list of usernames
485:
486: sub idrget {
487: my ($udom,@unames)=@_;
488: my %returnhash=();
489: map {
490: $returnhash{$_}=(&userenvironment($udom,$_,'id'))[1];
491: } @unames;
492: return %returnhash;
493: }
494:
495: # ------------------------------- Store away a list of names and associated IDs
496:
497: sub idput {
498: my ($udom,%ids)=@_;
499: my %servers=();
500: map {
501: my $uhom=&homeserver($_,$udom);
502: if ($uhom ne 'no_host') {
503: my $id=&escape($ids{$_});
504: $id=~tr/A-Z/a-z/;
505: my $unam=&escape($_);
506: if ($servers{$uhom}) {
507: $servers{$uhom}.='&'.$id.'='.$unam;
508: } else {
509: $servers{$uhom}=$id.'='.$unam;
510: }
511: &critical('put:'.$udom.':'.$unam.':environment:id='.$id,$uhom);
512: }
513: } keys %ids;
514: map {
515: &critical('idput:'.$udom.':'.$servers{$_},$_);
516: } keys %servers;
517: }
518:
519: # ------------------------------------- Find the section of student in a course
520:
521: sub usection {
522: my ($udom,$unam,$courseid)=@_;
523: $courseid=~s/\_/\//g;
524: $courseid=~s/^(\w)/\/$1/;
525: map {
526: my ($key,$value)=split(/\=/,$_);
527: $key=&unescape($key);
528: if ($key=~/^$courseid(?:\/)*(\w+)*\_st$/) {
529: my $section=$1;
530: if ($key eq $courseid.'_st') { $section=''; }
531: my ($dummy,$end,$start)=split(/\_/,&unescape($value));
532: my $now=time;
533: my $notactive=0;
534: if ($start) {
535: if ($now<$start) { $notactive=1; }
536: }
537: if ($end) {
538: if ($now>$end) { $notactive=1; }
539: }
540: unless ($notactive) { return $section; }
541: }
542: } split(/\&/,&reply('dump:'.$udom.':'.$unam.':roles',
543: &homeserver($unam,$udom)));
544: return '-1';
545: }
546:
547: # ------------------------------------- Read an entry from a user's environment
548:
549: sub userenvironment {
550: my ($udom,$unam,@what)=@_;
551: my %returnhash=();
552: my @answer=split(/\&/,
553: &reply('get:'.$udom.':'.$unam.':environment:'.join('&',@what),
554: &homeserver($unam,$udom)));
555: my $i;
556: for ($i=0;$i<=$#what;$i++) {
557: $returnhash{$what[$i]}=&unescape($answer[$i]);
558: }
559: return %returnhash;
1.1 albertel 560: }
561:
562: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 563:
1.1 albertel 564: sub subscribe {
565: my $fname=shift;
566: my $author=$fname;
567: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
568: my ($udom,$uname)=split(/\//,$author);
569: my $home=homeserver($uname,$udom);
570: if (($home eq 'no_host') || ($home eq $perlvar{'lonHostID'})) {
571: return 'not_found';
572: }
573: my $answer=reply("sub:$fname",$home);
1.64 www 574: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
575: $answer.=' by '.$home;
576: }
1.1 albertel 577: return $answer;
578: }
579:
1.8 www 580: # -------------------------------------------------------------- Replicate file
581:
582: sub repcopy {
583: my $filename=shift;
1.23 www 584: $filename=~s/\/+/\//g;
1.8 www 585: my $transname="$filename.in.transfer";
1.17 www 586: if ((-e $filename) || (-e $transname)) { return OK; }
1.8 www 587: my $remoteurl=subscribe($filename);
1.64 www 588: if ($remoteurl =~ /^con_lost by/) {
589: &logthis("Subscribe returned $remoteurl: $filename");
1.8 www 590: return HTTP_SERVICE_UNAVAILABLE;
591: } elsif ($remoteurl eq 'not_found') {
592: &logthis("Subscribe returned not_found: $filename");
593: return HTTP_NOT_FOUND;
1.64 www 594: } elsif ($remoteurl =~ /^rejected by/) {
595: &logthis("Subscribe returned $remoteurl: $filename");
1.8 www 596: return FORBIDDEN;
1.20 www 597: } elsif ($remoteurl eq 'directory') {
598: return OK;
1.8 www 599: } else {
600: my @parts=split(/\//,$filename);
601: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
602: if ($path ne "$perlvar{'lonDocRoot'}/res") {
603: &logthis("Malconfiguration for replication: $filename");
604: return HTTP_BAD_REQUEST;
605: }
606: my $count;
607: for ($count=5;$count<$#parts;$count++) {
608: $path.="/$parts[$count]";
609: if ((-e $path)!=1) {
610: mkdir($path,0777);
611: }
612: }
613: my $ua=new LWP::UserAgent;
614: my $request=new HTTP::Request('GET',"$remoteurl");
615: my $response=$ua->request($request,$transname);
616: if ($response->is_error()) {
617: unlink($transname);
618: my $message=$response->status_line;
1.12 www 619: &logthis("<font color=blue>WARNING:"
620: ." LWP get: $message: $filename</font>");
1.8 www 621: return HTTP_SERVICE_UNAVAILABLE;
622: } else {
1.16 www 623: if ($remoteurl!~/\.meta$/) {
624: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
625: my $mresponse=$ua->request($mrequest,$filename.'.meta');
626: if ($mresponse->is_error()) {
627: unlink($filename.'.meta');
628: &logthis(
629: "<font color=yellow>INFO: No metadata: $filename</font>");
630: }
631: }
1.8 www 632: rename($transname,$filename);
633: return OK;
634: }
635: }
636: }
637:
1.15 www 638: # --------------------------------------------------------- Server Side Include
639:
640: sub ssi {
641:
1.23 www 642: my ($fn,%form)=@_;
1.15 www 643:
644: my $ua=new LWP::UserAgent;
1.23 www 645:
646: my $request;
647:
648: if (%form) {
649: $request=new HTTP::Request('POST',"http://".$ENV{'HTTP_HOST'}.$fn);
650: $request->content(join '&', map { "$_=$form{$_}" } keys %form);
651: } else {
652: $request=new HTTP::Request('GET',"http://".$ENV{'HTTP_HOST'}.$fn);
653: }
654:
1.15 www 655: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
656: my $response=$ua->request($request);
657:
658: return $response->content;
659: }
660:
1.14 www 661: # ------------------------------------------------------------------------- Log
662:
663: sub log {
664: my ($dom,$nam,$hom,$what)=@_;
1.47 www 665: return critical("log:$dom:$nam:$what",$hom);
1.149 www 666: }
667:
668: # ----------------------------------------------------------- Check out an item
669:
670: sub checkout {
671: my ($symb,$tuname,$tudom,$tcrsid)=@_;
672: my $now=time;
673: my $lonhost=$perlvar{'lonHostID'};
674: my $infostr=&escape(
675: $tuname.'&'.
676: $tudom.'&'.
677: $tcrsid.'&'.
678: $symb.'&'.
679: $now.'&'.$ENV{'REMOTE_ADDR'});
680: my $token=&reply('tmpput:'.$infostr,$lonhost);
1.151 www 681: if ($token=~/^error\:/) {
682: &logthis("<font color=blue>WARNING: ".
683: "Checkout tmpput failed ".$tudom.' - '.$tuname.' - '.$symb.
684: "</font>");
685: return '';
686: }
687:
1.149 www 688: $token=~s/^(\d+)\_.*\_(\d+)$/$1\*$2\*$lonhost/;
689: $token=~tr/a-z/A-Z/;
690:
1.153 www 691: my %infohash=('resource.0.outtoken' => $token,
692: 'resource.0.checkouttime' => $now,
693: 'resource.0.outremote' => $ENV{'REMOTE_ADDR'});
1.149 www 694:
695: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
696: return '';
1.151 www 697: } else {
698: &logthis("<font color=blue>WARNING: ".
699: "Checkout cstore failed ".$tudom.' - '.$tuname.' - '.$symb.
700: "</font>");
1.149 www 701: }
702:
703: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
704: &escape('Checkout '.$infostr.' - '.
705: $token)) ne 'ok') {
706: return '';
1.151 www 707: } else {
708: &logthis("<font color=blue>WARNING: ".
709: "Checkout log failed ".$tudom.' - '.$tuname.' - '.$symb.
710: "</font>");
1.149 www 711: }
1.151 www 712: return $token;
1.149 www 713: }
714:
715: # ------------------------------------------------------------ Check in an item
716:
717: sub checkin {
718: my $token=shift;
1.150 www 719: my $now=time;
720: my ($ta,$tb,$lonhost)=split(/\*/,$token);
721: $lonhost=~tr/A-Z/a-z/;
722: my $dtoken=$ta.'_'.$hostip{$lonhost}.'_'.$tb;
723: $dtoken=~s/\W/\_/g;
724: my ($tuname,$tudom,$tcrsid,$symb,$chtim,$rmaddr)=
725: split(/\&/,&unescape(&reply('tmpget:'.$dtoken,$lonhost)));
726:
1.154 www 727: unless (($tuname) && ($tudom)) {
728: &logthis('Check in '.$token.' ('.$dtoken.') failed');
729: return '';
730: }
731:
732: unless (&allowed('mgr',$tcrsid)) {
733: &logthis('Check in '.$token.' ('.$dtoken.') unauthorized: '.
734: $ENV{'user.name'}.' - '.$ENV{'user.domain'});
735: return '';
736: }
737:
1.153 www 738: my %infohash=('resource.0.intoken' => $token,
739: 'resource.0.checkintime' => $now,
740: 'resource.0.inremote' => $ENV{'REMOTE_ADDR'});
1.150 www 741:
742: unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
743: return '';
744: }
745:
746: if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
747: &escape('Checkin - '.$token)) ne 'ok') {
748: return '';
749: }
750:
751: return ($symb,$tuname,$tudom,$tcrsid);
1.110 www 752: }
753:
754: # --------------------------------------------- Set Expire Date for Spreadsheet
755:
756: sub expirespread {
757: my ($uname,$udom,$stype,$usymb)=@_;
758: my $cid=$ENV{'request.course.id'};
759: if ($cid) {
760: my $now=time;
761: my $key=$uname.':'.$udom.':'.$stype.':'.$usymb;
762: return &reply('put:'.$ENV{'course.'.$cid.'.domain'}.':'.
763: $ENV{'course.'.$cid.'.num'}.
764: ':nohist_expirationdates:'.
765: &escape($key).'='.$now,
766: $ENV{'course.'.$cid.'.home'})
767: }
768: return 'ok';
1.14 www 769: }
770:
1.109 www 771: # ----------------------------------------------------- Devalidate Spreadsheets
772:
773: sub devalidate {
774: my $symb=shift;
775: my $cid=$ENV{'request.course.id'};
776: if ($cid) {
777: my $key=$ENV{'user.name'}.':'.$ENV{'user.domain'}.':';
778: my $status=
1.133 albertel 779: &del('nohist_calculatedsheet',
780: [$key.'studentcalc'],
781: $ENV{'course.'.$cid.'.domain'},
782: $ENV{'course.'.$cid.'.num'})
783: .' '.
784: &del('nohist_calculatedsheets_'.$cid,
785: [$key.'assesscalc:'.$symb]);
1.109 www 786: unless ($status eq 'ok ok') {
787: &logthis('Could not devalidate spreadsheet '.
788: $ENV{'user.name'}.' at '.$ENV{'user.domain'}.' for '.
789: $symb.': '.$status);
1.133 albertel 790: }
1.109 www 791: }
792: }
793:
1.9 www 794: # ----------------------------------------------------------------------- Store
795:
796: sub store {
1.124 www 797: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
798: my $home='';
799:
800: if ($stuname) {
801: $home=&homeserver($stuname,$domain);
802: }
803:
1.122 albertel 804: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 805:
806: &devalidate($symb);
807:
808: $symb=escape($symb);
1.122 albertel 809: if (!$namespace) { unless ($namespace=$ENV{'request.course.id'}) { return ''; } }
810: if (!$domain) { $domain=$ENV{'user.domain'}; }
811: if (!$stuname) { $stuname=$ENV{'user.name'}; }
812: if (!$home) { $home=$ENV{'user.home'}; }
1.12 www 813: my $namevalue='';
814: map {
1.122 albertel 815: $namevalue.=escape($_).'='.escape($$storehash{$_}).'&';
816: } keys %$storehash;
1.12 www 817: $namevalue=~s/\&$//;
1.124 www 818: return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.9 www 819: }
820:
1.47 www 821: # -------------------------------------------------------------- Critical Store
822:
823: sub cstore {
1.124 www 824: my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
825: my $home='';
826:
827: if ($stuname) {
828: $home=&homeserver($stuname,$domain);
829: }
830:
1.122 albertel 831: if (!$symb) { unless ($symb=&symbread()) { return ''; } }
1.109 www 832:
833: &devalidate($symb);
834:
835: $symb=escape($symb);
1.122 albertel 836: if (!$namespace) { unless ($namespace=$ENV{'request.course.id'}) { return ''; } }
837: if (!$domain) { $domain=$ENV{'user.domain'}; }
838: if (!$stuname) { $stuname=$ENV{'user.name'}; }
839: if (!$home) { $home=$ENV{'user.home'}; }
840:
1.47 www 841: my $namevalue='';
842: map {
1.122 albertel 843: $namevalue.=escape($_).'='.escape($$storehash{$_}).'&';
844: } keys %$storehash;
1.47 www 845: $namevalue=~s/\&$//;
1.122 albertel 846: return critical("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
1.47 www 847: }
848:
1.9 www 849: # --------------------------------------------------------------------- Restore
850:
851: sub restore {
1.124 www 852: my ($symb,$namespace,$domain,$stuname) = @_;
853: my $home='';
854:
855: if ($stuname) {
856: $home=&homeserver($stuname,$domain);
857: }
858:
1.122 albertel 859: if (!$symb) {
860: unless ($symb=escape(&symbread())) { return ''; }
861: } else {
862: $symb=&escape($symb);
863: }
864: if (!$namespace) { unless ($namespace=$ENV{'request.course.id'}) { return ''; } }
865: if (!$domain) { $domain=$ENV{'user.domain'}; }
866: if (!$stuname) { $stuname=$ENV{'user.name'}; }
867: if (!$home) { $home=$ENV{'user.home'}; }
868: my $answer=&reply("restore:$domain:$stuname:$namespace:$symb","$home");
869:
1.12 www 870: my %returnhash=();
871: map {
872: my ($name,$value)=split(/\=/,$_);
873: $returnhash{&unescape($name)}=&unescape($value);
874: } split(/\&/,$answer);
1.75 www 875: my $version;
876: for ($version=1;$version<=$returnhash{'version'};$version++) {
877: map {
878: $returnhash{$_}=$returnhash{$version.':'.$_};
879: } split(/\:/,$returnhash{$version.':keys'});
880: }
1.13 www 881: return %returnhash;
1.34 www 882: }
883:
884: # ---------------------------------------------------------- Course Description
885:
886: sub coursedescription {
887: my $courseid=shift;
888: $courseid=~s/^\///;
1.49 www 889: $courseid=~s/\_/\//g;
1.34 www 890: my ($cdomain,$cnum)=split(/\//,$courseid);
1.129 albertel 891: my $chome=&homeserver($cnum,$cdomain);
1.34 www 892: if ($chome ne 'no_host') {
1.129 albertel 893: my %returnhash=&dump('environment',$cdomain,$cnum);
894: if (!exists($returnhash{'con_lost'})) {
1.96 www 895: my $normalid=$cdomain.'_'.$cnum;
1.53 www 896: my %envhash=();
1.129 albertel 897: $returnhash{'home'}= $chome;
898: $returnhash{'domain'} = $cdomain;
899: $returnhash{'num'} = $cnum;
1.130 albertel 900: while (my ($name,$value) = each %returnhash) {
1.53 www 901: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.129 albertel 902: }
1.34 www 903: $returnhash{'url'}='/res/'.declutter($returnhash{'url'});
904: $returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'.
1.38 www 905: $ENV{'user.name'}.'_'.$cdomain.'_'.$cnum;
1.54 www 906: $envhash{'course.'.$normalid.'.last_cache'}=time;
1.60 www 907: $envhash{'course.'.$normalid.'.home'}=$chome;
908: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
909: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.53 www 910: &appenv(%envhash);
1.34 www 911: return %returnhash;
912: }
913: }
914: return ();
1.9 www 915: }
1.1 albertel 916:
1.103 harris41 917: # -------------------------------------------------------- Get user privileges
1.11 www 918:
919: sub rolesinit {
920: my ($domain,$username,$authhost)=@_;
921: my $rolesdump=reply("dump:$domain:$username:roles",$authhost);
1.12 www 922: if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return ''; }
1.11 www 923: my %allroles=();
924: my %thesepriv=();
925: my $now=time;
1.21 www 926: my $userroles="user.login.time=$now\n";
1.11 www 927: my $thesestr;
928:
929: if ($rolesdump ne '') {
930: map {
1.21 www 931: if ($_!~/^rolesdef\&/) {
1.11 www 932: my ($area,$role)=split(/=/,$_);
1.21 www 933: $area=~s/\_\w\w$//;
1.11 www 934: my ($trole,$tend,$tstart)=split(/_/,$role);
1.21 www 935: $userroles.='user.role.'.$trole.'.'.$area.'='.
936: $tstart.'.'.$tend."\n";
1.11 www 937: if ($tend!=0) {
938: if ($tend<$now) {
939: $trole='';
940: }
941: }
942: if ($tstart!=0) {
943: if ($tstart>$now) {
944: $trole='';
945: }
946: }
947: if (($area ne '') && ($trole ne '')) {
1.50 www 948: my $spec=$trole.'.'.$area;
1.12 www 949: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
950: if ($trole =~ /^cr\//) {
951: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
952: my $homsvr=homeserver($rauthor,$rdomain);
953: if ($hostname{$homsvr} ne '') {
954: my $roledef=
1.21 www 955: reply("get:$rdomain:$rauthor:roles:rolesdef_$rrole",
1.12 www 956: $homsvr);
957: if (($roledef ne 'con_lost') && ($roledef ne '')) {
958: my ($syspriv,$dompriv,$coursepriv)=
1.21 www 959: split(/\_/,unescape($roledef));
1.50 www 960: $allroles{'cm./'}.=':'.$syspriv;
961: $allroles{$spec.'./'}.=':'.$syspriv;
1.12 www 962: if ($tdomain ne '') {
1.50 www 963: $allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
964: $allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
1.12 www 965: if ($trest ne '') {
1.50 www 966: $allroles{'cm.'.$area}.=':'.$coursepriv;
967: $allroles{$spec.'.'.$area}.=':'.$coursepriv;
1.12 www 968: }
969: }
970: }
1.11 www 971: }
1.12 www 972: } else {
1.50 www 973: $allroles{'cm./'}.=':'.$pr{$trole.':s'};
974: $allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
1.12 www 975: if ($tdomain ne '') {
1.50 www 976: $allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
977: $allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
1.12 www 978: if ($trest ne '') {
1.50 www 979: $allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
980: $allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
1.12 www 981: }
982: }
1.11 www 983: }
1.12 www 984: }
985: }
1.11 www 986: } split(/&/,$rolesdump);
1.125 www 987: my $adv=0;
1.128 www 988: my $author=0;
1.11 www 989: map {
990: %thesepriv=();
1.146 www 991: if (($_!~/^st/) && ($_!~/^ta/) && ($_!~/^cm/)) { $adv=1; }
1.128 www 992: if (($_=~/^au/) || ($_=~/^ca/)) { $author=1; }
1.11 www 993: map {
994: if ($_ ne '') {
1.103 harris41 995: my ($privilege,$restrictions)=split(/&/,$_);
1.11 www 996: if ($restrictions eq '') {
1.103 harris41 997: $thesepriv{$privilege}='F';
1.11 www 998: } else {
1.103 harris41 999: if ($thesepriv{$privilege} ne 'F') {
1000: $thesepriv{$privilege}.=$restrictions;
1.11 www 1001: }
1002: }
1003: }
1004: } split(/:/,$allroles{$_});
1005: $thesestr='';
1006: map { $thesestr.=':'.$_.'&'.$thesepriv{$_}; } keys %thesepriv;
1007: $userroles.='user.priv.'.$_.'='.$thesestr."\n";
1008: } keys %allroles;
1.128 www 1009: $userroles.='user.adv='.$adv."\n".
1010: 'user.author='.$author."\n";
1.126 www 1011: $ENV{'user.adv'}=$adv;
1.11 www 1012: }
1013: return $userroles;
1014: }
1015:
1.12 www 1016: # --------------------------------------------------------------- get interface
1017:
1018: sub get {
1.131 albertel 1019: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 1020: my $items='';
1021: map {
1022: $items.=escape($_).'&';
1.131 albertel 1023: } @$storearr;
1.12 www 1024: $items=~s/\&$//;
1.131 albertel 1025: if (!$udomain) { $udomain=$ENV{'user.domain'}; }
1026: if (!$uname) { $uname=$ENV{'user.name'}; }
1027: my $uhome=&homeserver($uname,$udomain);
1028:
1.133 albertel 1029: my $rep=&reply("get:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 1030: my @pairs=split(/\&/,$rep);
1031: my %returnhash=();
1.42 www 1032: my $i=0;
1.15 www 1033: map {
1.42 www 1034: $returnhash{$_}=unescape($pairs[$i]);
1035: $i++;
1.131 albertel 1036: } @$storearr;
1.15 www 1037: return %returnhash;
1.27 www 1038: }
1039:
1040: # --------------------------------------------------------------- del interface
1041:
1042: sub del {
1.133 albertel 1043: my ($namespace,$storearr,$udomain,$uname)=@_;
1.27 www 1044: my $items='';
1045: map {
1046: $items.=escape($_).'&';
1.133 albertel 1047: } @$storearr;
1.27 www 1048: $items=~s/\&$//;
1.133 albertel 1049: if (!$udomain) { $udomain=$ENV{'user.domain'}; }
1050: if (!$uname) { $uname=$ENV{'user.name'}; }
1051: my $uhome=&homeserver($uname,$udomain);
1052:
1053: return &reply("del:$udomain:$uname:$namespace:$items",$uhome);
1.15 www 1054: }
1055:
1056: # -------------------------------------------------------------- dump interface
1057:
1058: sub dump {
1.129 albertel 1059: my ($namespace,$udomain,$uname)=@_;
1060: if (!$udomain) { $udomain=$ENV{'user.domain'}; }
1061: if (!$uname) { $uname=$ENV{'user.name'}; }
1062: my $uhome=&homeserver($uname,$udomain);
1063: my $rep=reply("dump:$udomain:$uname:$namespace",$uhome);
1.12 www 1064: my @pairs=split(/\&/,$rep);
1065: my %returnhash=();
1066: map {
1067: my ($key,$value)=split(/=/,$_);
1.29 www 1068: $returnhash{unescape($key)}=unescape($value);
1.12 www 1069: } @pairs;
1070: return %returnhash;
1071: }
1072:
1073: # --------------------------------------------------------------- put interface
1074:
1075: sub put {
1.134 albertel 1076: my ($namespace,$storehash,$udomain,$uname)=@_;
1077: if (!$udomain) { $udomain=$ENV{'user.domain'}; }
1078: if (!$uname) { $uname=$ENV{'user.name'}; }
1079: my $uhome=&homeserver($uname,$udomain);
1.12 www 1080: my $items='';
1081: map {
1.134 albertel 1082: $items.=&escape($_).'='.&escape($$storehash{$_}).'&';
1083: } keys %$storehash;
1.12 www 1084: $items=~s/\&$//;
1.134 albertel 1085: return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
1.47 www 1086: }
1087:
1088: # ------------------------------------------------------ critical put interface
1089:
1090: sub cput {
1.134 albertel 1091: my ($namespace,$storehash,$udomain,$uname)=@_;
1092: if (!$udomain) { $udomain=$ENV{'user.domain'}; }
1093: if (!$uname) { $uname=$ENV{'user.name'}; }
1094: my $uhome=&homeserver($uname,$udomain);
1.47 www 1095: my $items='';
1096: map {
1.134 albertel 1097: $items.=escape($_).'='.escape($$storehash{$_}).'&';
1098: } keys %$storehash;
1.47 www 1099: $items=~s/\&$//;
1.134 albertel 1100: return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 1101: }
1102:
1103: # -------------------------------------------------------------- eget interface
1104:
1105: sub eget {
1.133 albertel 1106: my ($namespace,$storearr,$udomain,$uname)=@_;
1.12 www 1107: my $items='';
1108: map {
1109: $items.=escape($_).'&';
1.133 albertel 1110: } @$storearr;
1.12 www 1111: $items=~s/\&$//;
1.133 albertel 1112: if (!$udomain) { $udomain=$ENV{'user.domain'}; }
1113: if (!$uname) { $uname=$ENV{'user.name'}; }
1114: my $uhome=&homeserver($uname,$udomain);
1115: my $rep=&reply("eget:$udomain:$uname:$namespace:$items",$uhome);
1.12 www 1116: my @pairs=split(/\&/,$rep);
1117: my %returnhash=();
1.42 www 1118: my $i=0;
1.12 www 1119: map {
1.42 www 1120: $returnhash{$_}=unescape($pairs[$i]);
1121: $i++;
1.133 albertel 1122: } @$storearr;
1.12 www 1123: return %returnhash;
1124: }
1125:
1.103 harris41 1126: # ------------------------------------------------- Check for a user privilege
1.12 www 1127:
1128: sub allowed {
1129: my ($priv,$uri)=@_;
1.152 www 1130:
1131: my $orguri=$uri;
1.52 www 1132: $uri=&declutter($uri);
1.29 www 1133:
1.54 www 1134: # Free bre access to adm and meta resources
1.29 www 1135:
1.54 www 1136: if ((($uri=~/^adm\//) || ($uri=~/\.meta$/)) && ($priv eq 'bre')) {
1.14 www 1137: return 'F';
1138: }
1.29 www 1139:
1.52 www 1140: my $thisallowed='';
1141: my $statecond=0;
1142: my $courseprivid='';
1143:
1144: # Course
1145:
1146: if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'}=~/$priv\&([^\:]*)/) {
1147: $thisallowed.=$1;
1148: }
1.29 www 1149:
1.52 www 1150: # Domain
1151:
1152: if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
1153: =~/$priv\&([^\:]*)/) {
1.12 www 1154: $thisallowed.=$1;
1155: }
1.52 www 1156:
1157: # Course: uri itself is a course
1.66 www 1158: my $courseuri=$uri;
1159: $courseuri=~s/\_(\d)/\/$1/;
1.83 www 1160: $courseuri=~s/^([^\/])/\/$1/;
1.81 www 1161:
1.83 www 1162: if ($ENV{'user.priv.'.$ENV{'request.role'}.'.'.$courseuri}
1.52 www 1163: =~/$priv\&([^\:]*)/) {
1.12 www 1164: $thisallowed.=$1;
1165: }
1.29 www 1166:
1.52 www 1167: # Full access at system, domain or course-wide level? Exit.
1.29 www 1168:
1169: if ($thisallowed=~/F/) {
1170: return 'F';
1171: }
1172:
1.52 www 1173: # If this is generating or modifying users, exit with special codes
1.29 www 1174:
1.52 www 1175: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:'=~/\:$priv\:/) {
1176: return $thisallowed;
1177: }
1178: #
1.103 harris41 1179: # Gathered so far: system, domain and course wide privileges
1.52 www 1180: #
1181: # Course: See if uri or referer is an individual resource that is part of
1182: # the course
1183:
1184: if ($ENV{'request.course.id'}) {
1185: $courseprivid=$ENV{'request.course.id'};
1186: if ($ENV{'request.course.sec'}) {
1187: $courseprivid.='/'.$ENV{'request.course.sec'};
1188: }
1189: $courseprivid=~s/\_/\//;
1190: my $checkreferer=1;
1191: my @uriparts=split(/\//,$uri);
1192: my $filename=$uriparts[$#uriparts];
1193: my $pathname=$uri;
1194: $pathname=~s/\/$filename$//;
1195: if ($ENV{'acc.res.'.$ENV{'request.course.id'}.'.'.$pathname}=~
1.54 www 1196: /\&$filename\:([\d\|]+)\&/) {
1.52 www 1197: $statecond=$1;
1198: if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'.$courseprivid}
1199: =~/$priv\&([^\:]*)/) {
1200: $thisallowed.=$1;
1201: $checkreferer=0;
1202: }
1.29 www 1203: }
1.83 www 1204:
1.148 www 1205: if ($checkreferer) {
1.152 www 1206: my $refuri=$ENV{'httpref.'.$orguri};
1.148 www 1207:
1208: unless ($refuri) {
1209: map {
1210: if ($_=~/^httpref\..*\*/) {
1211: my $pattern=$_;
1212: $pattern=~s/\*/\[\^\/\]\+/g;
1213: $pattern=~s/\//\\\//g;
1.152 www 1214: if ($orguri=~/$pattern/) {
1.148 www 1215: $refuri=$ENV{$_};
1216: }
1217: }
1218: } keys %ENV;
1219: }
1220: if ($refuri) {
1.152 www 1221: $refuri=&declutter($refuri);
1.53 www 1222: my @uriparts=split(/\//,$refuri);
1.52 www 1223: my $filename=$uriparts[$#uriparts];
1.53 www 1224: my $pathname=$refuri;
1.52 www 1225: $pathname=~s/\/$filename$//;
1.53 www 1226: if ($ENV{'acc.res.'.$ENV{'request.course.id'}.'.'.$pathname}=~
1.54 www 1227: /\&$filename\:([\d\|]+)\&/) {
1.53 www 1228: my $refstatecond=$1;
1.52 www 1229: if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'.$courseprivid}
1230: =~/$priv\&([^\:]*)/) {
1231: $thisallowed.=$1;
1.53 www 1232: $uri=$refuri;
1233: $statecond=$refstatecond;
1.52 www 1234: }
1235: }
1.148 www 1236: }
1.29 www 1237: }
1.52 www 1238: }
1.29 www 1239:
1.52 www 1240: #
1.103 harris41 1241: # Gathered now: all privileges that could apply, and condition number
1.52 www 1242: #
1243: #
1244: # Full or no access?
1245: #
1.29 www 1246:
1.52 www 1247: if ($thisallowed=~/F/) {
1248: return 'F';
1249: }
1.29 www 1250:
1.52 www 1251: unless ($thisallowed) {
1252: return '';
1253: }
1.29 www 1254:
1.52 www 1255: # Restrictions exist, deal with them
1256: #
1257: # C:according to course preferences
1258: # R:according to resource settings
1259: # L:unless locked
1260: # X:according to user session state
1261: #
1262:
1263: # Possibly locked functionality, check all courses
1.54 www 1264: # Locks might take effect only after 10 minutes cache expiration for other
1265: # courses, and 2 minutes for current course
1.52 www 1266:
1267: my $envkey;
1268: if ($thisallowed=~/L/) {
1269: foreach $envkey (keys %ENV) {
1.54 www 1270: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
1271: my $courseid=$2;
1272: my $roleid=$1.'.'.$2;
1.92 www 1273: $courseid=~s/^\///;
1.54 www 1274: my $expiretime=600;
1275: if ($ENV{'request.role'} eq $roleid) {
1276: $expiretime=120;
1277: }
1278: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
1279: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1280: if ((time-$ENV{$prefix.'last_cache'})>$expiretime) {
1281: &coursedescription($courseid);
1282: }
1283: if (($ENV{$prefix.'res.'.$uri.'.lock.sections'}=~/\,$csec\,/)
1284: || ($ENV{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
1285: if ($ENV{$prefix.'res.'.$uri.'.lock.expire'}>time) {
1.57 www 1286: &log($ENV{'user.domain'},$ENV{'user.name'},
1287: $ENV{'user.host'},
1288: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 1289: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.54 www 1290: $ENV{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 1291: return '';
1292: }
1293: }
1.54 www 1294: if (($ENV{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,$csec\,/)
1295: || ($ENV{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
1296: if ($ENV{'priv.'.$priv.'.lock.expire'}>time) {
1.57 www 1297: &log($ENV{'user.domain'},$ENV{'user.name'},
1298: $ENV{'user.host'},
1299: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 1300: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.54 www 1301: $ENV{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 1302: return '';
1303: }
1304: }
1305: }
1.29 www 1306: }
1.52 www 1307: }
1308:
1309: #
1310: # Rest of the restrictions depend on selected course
1311: #
1312:
1313: unless ($ENV{'request.course.id'}) {
1314: return '1';
1315: }
1.29 www 1316:
1.52 www 1317: #
1318: # Now user is definitely in a course
1319: #
1.53 www 1320:
1321:
1322: # Course preferences
1323:
1324: if ($thisallowed=~/C/) {
1.54 www 1325: my $rolecode=(split(/\./,$ENV{'request.role'}))[0];
1326: if ($ENV{'course.'.$ENV{'request.course.id'}.'.'.$priv.'.roles.denied'}
1327: =~/\,$rolecode\,/) {
1.57 www 1328: &log($ENV{'user.domain'},$ENV{'user.name'},$ENV{'user.host'},
1329: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
1.54 www 1330: $ENV{'request.course.id'});
1331: return '';
1332: }
1.53 www 1333: }
1334:
1335: # Resource preferences
1336:
1337: if ($thisallowed=~/R/) {
1.54 www 1338: my $rolecode=(split(/\./,$ENV{'request.role'}))[0];
1339: my $filename=$perlvar{'lonDocRoot'}.'/res/'.$uri.'.meta';
1340: if (-e $filename) {
1341: my @content;
1342: {
1343: my $fh=Apache::File->new($filename);
1344: @content=<$fh>;
1345: }
1346: if (join('',@content)=~
1347: /\<roledeny[^\>]*\>[^\<]*$rolecode[^\<]*\<\/roledeny\>/) {
1.57 www 1348: &log($ENV{'user.domain'},$ENV{'user.name'},$ENV{'user.host'},
1349: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
1.54 www 1350: return '';
1351:
1352: }
1353: }
1.53 www 1354: }
1.30 www 1355:
1.52 www 1356: # Restricted by state?
1.30 www 1357:
1.52 www 1358: if ($thisallowed=~/X/) {
1359: if (&condval($statecond)) {
1360: return '2';
1361: } else {
1362: return '';
1363: }
1364: }
1.30 www 1365:
1.52 www 1366: return 'F';
1.12 www 1367: }
1368:
1369: # ----------------------------------------------------------------- Define Role
1370:
1371: sub definerole {
1372: if (allowed('mcr','/')) {
1373: my ($rolename,$sysrole,$domrole,$courole)=@_;
1.21 www 1374: map {
1375: my ($crole,$cqual)=split(/\&/,$_);
1376: if ($pr{'cr:s'}!~/$crole/) { return "refused:s:$crole"; }
1377: if ($pr{'cr:s'}=~/$crole\&/) {
1378: if ($pr{'cr:s'}!~/$crole\&\w*$cqual/) {
1379: return "refused:s:$crole&$cqual";
1380: }
1381: }
1382: } split('/',$sysrole);
1383: map {
1384: my ($crole,$cqual)=split(/\&/,$_);
1385: if ($pr{'cr:d'}!~/$crole/) { return "refused:d:$crole"; }
1386: if ($pr{'cr:d'}=~/$crole\&/) {
1387: if ($pr{'cr:d'}!~/$crole\&\w*$cqual/) {
1388: return "refused:d:$crole&$cqual";
1389: }
1390: }
1391: } split('/',$domrole);
1392: map {
1393: my ($crole,$cqual)=split(/\&/,$_);
1394: if ($pr{'cr:c'}!~/$crole/) { return "refused:c:$crole"; }
1395: if ($pr{'cr:c'}=~/$crole\&/) {
1396: if ($pr{'cr:c'}!~/$crole\&\w*$cqual/) {
1397: return "refused:c:$crole&$cqual";
1398: }
1399: }
1400: } split('/',$courole);
1.12 www 1401: my $command="encrypt:rolesput:$ENV{'user.domain'}:$ENV{'user.name'}:".
1402: "$ENV{'user.domain'}:$ENV{'user.name'}:".
1.21 www 1403: "rolesdef_$rolename=".
1404: escape($sysrole.'_'.$domrole.'_'.$courole);
1.12 www 1405: return reply($command,$ENV{'user.home'});
1406: } else {
1407: return 'refused';
1408: }
1.105 harris41 1409: }
1410:
1411: # ---------------- Make a metadata query against the network of library servers
1412:
1413: sub metadata_query {
1.116 harris41 1414: my ($query,$custom,$customshow)=@_;
1.118 harris41 1415: # need to put in a library server loop here and return a hash
1.120 harris41 1416: my %rhash;
1.123 harris41 1417: for my $server (keys %libserv) {
1.118 harris41 1418: unless ($custom or $customshow) {
1419: my $reply=&reply("querysend:".&escape($query),$server);
1420: $rhash{$server}=$reply;
1421: }
1422: else {
1423: my $reply=&reply("querysend:".&escape($query).':'.
1424: &escape($custom).':'.&escape($customshow),
1425: $server);
1426: $rhash{$server}=$reply;
1427: }
1.112 harris41 1428: }
1.118 harris41 1429: return \%rhash;
1.12 www 1430: }
1431:
1432: # ------------------------------------------------------------------ Plain Text
1433:
1434: sub plaintext {
1.22 www 1435: my $short=shift;
1436: return $prp{$short};
1.12 www 1437: }
1438:
1.25 www 1439: # ------------------------------------------------------------------ Plain Text
1440:
1441: sub fileembstyle {
1442: my $ending=shift;
1443: return $fe{$ending};
1444: }
1445:
1446: # ------------------------------------------------------------ Description Text
1447:
1.74 www 1448: sub filedescription {
1.25 www 1449: my $ending=shift;
1450: return $fd{$ending};
1451: }
1452:
1.12 www 1453: # ----------------------------------------------------------------- Assign Role
1454:
1455: sub assignrole {
1.21 www 1456: my ($udom,$uname,$url,$role,$end,$start)=@_;
1457: my $mrole;
1458: if ($role =~ /^cr\//) {
1.104 www 1459: unless (&allowed('ccr',$url)) {
1460: &logthis('Refused custom assignrole: '.
1461: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
1462: $ENV{'user.name'}.' at '.$ENV{'user.domain'});
1463: return 'refused';
1464: }
1.21 www 1465: $mrole='cr';
1466: } else {
1.82 www 1467: my $cwosec=$url;
1.83 www 1468: $cwosec=~s/^\/(\w+)\/(\w+)\/.*/$1\/$2/;
1.104 www 1469: unless (&allowed('c'.$role,$cwosec)) {
1470: &logthis('Refused assignrole: '.
1471: $udom.' '.$uname.' '.$url.' '.$role.' '.$end.' '.$start.' by '.
1472: $ENV{'user.name'}.' at '.$ENV{'user.domain'});
1473: return 'refused';
1474: }
1.21 www 1475: $mrole=$role;
1476: }
1477: my $command="encrypt:rolesput:$ENV{'user.domain'}:$ENV{'user.name'}:".
1478: "$udom:$uname:$url".'_'."$mrole=$role";
1.81 www 1479: if ($end) { $command.='_'.$end; }
1.21 www 1480: if ($start) {
1481: if ($end) {
1.81 www 1482: $command.='_'.$start;
1.21 www 1483: } else {
1.81 www 1484: $command.='_0_'.$start;
1.21 www 1485: }
1486: }
1487: return &reply($command,&homeserver($uname,$udom));
1.80 www 1488: }
1489:
1.81 www 1490: # --------------------------------------------------------------- Modify a user
1.80 www 1491:
1492:
1.81 www 1493: sub modifyuser {
1.80 www 1494: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene)=@_;
1.81 www 1495: &logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 1496: $umode.', '.$first.', '.$middle.', '.
1497: $last.', '.$gene.' by '.
1498: $ENV{'user.name'}.' at '.$ENV{'user.domain'});
1499: my $uhome=&homeserver($uname,$udom);
1500: # ----------------------------------------------------------------- Create User
1.81 www 1501: if (($uhome eq 'no_host') && ($umode) && ($upass)) {
1.80 www 1502: my $unhome='';
1503: if ($ENV{'course.'.$ENV{'request.course.id'}.'.domain'} eq $udom) {
1504: $unhome=$ENV{'course.'.$ENV{'request.course.id'}.'.home'};
1505: } else {
1506: my $tryserver;
1.81 www 1507: my $loadm=10000000;
1.80 www 1508: foreach $tryserver (keys %libserv) {
1509: if ($hostdom{$tryserver} eq $udom) {
1510: my $answer=reply('load',$tryserver);
1511: if (($answer=~/\d+/) && ($answer<$loadm)) {
1512: $loadm=$answer;
1513: $unhome=$tryserver;
1514: }
1515: }
1516: }
1517: }
1518: if (($unhome eq '') || ($unhome eq 'no_host')) {
1519: return 'error: find home';
1520: }
1521: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
1522: &escape($upass),$unhome);
1523: unless ($reply eq 'ok') {
1524: return 'error: '.$reply;
1525: }
1526: $uhome=&homeserver($uname,$udom);
1527: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
1528: return 'error: verify home';
1529: }
1530: }
1531: # ---------------------------------------------------------------------- Add ID
1532: if ($uid) {
1533: $uid=~tr/A-Z/a-z/;
1534: my %uidhash=&idrget($udom,$uname);
1535: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)) {
1536: unless ($uid eq $uidhash{$uname}) {
1537: return 'error: mismatch '.$uidhash{$uname}.' versus '.$uid;
1538: }
1539: } else {
1540: &idput($udom,($uname => $uid));
1541: }
1542: }
1543: # -------------------------------------------------------------- Add names, etc
1.134 albertel 1544: my %names=&get('environment',
1545: ['firstname','middlename','lastname','generation'],
1546: $udom,$uname);
1547: if ($first) { $names{'firstname'} = $first; }
1548: if ($middle) { $names{'middlename'} = $middle; }
1549: if ($last) { $names{'lastname'} = $last; }
1550: if ($gene) { $names{'generation'} = $gene; }
1551: my $reply = &put('environment', \%names, $udom,$uname);
1552: if ($reply ne 'ok') { return 'error: '.$reply; }
1.81 www 1553: &logthis('Success modifying user '.$udom.', '.$uname.', '.$uid.', '.
1.80 www 1554: $umode.', '.$first.', '.$middle.', '.
1555: $last.', '.$gene.' by '.
1556: $ENV{'user.name'}.' at '.$ENV{'user.domain'});
1.134 albertel 1557: return 'ok';
1.80 www 1558: }
1559:
1.81 www 1560: # -------------------------------------------------------------- Modify student
1.80 www 1561:
1.81 www 1562: sub modifystudent {
1563: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
1564: $end,$start)=@_;
1565: my $cid='';
1566: unless ($cid=$ENV{'request.course.id'}) {
1.80 www 1567: return 'not_in_class';
1568: }
1569: # --------------------------------------------------------------- Make the user
1.81 www 1570: my $reply=&modifyuser
1.80 www 1571: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene);
1572: unless ($reply eq 'ok') { return $reply; }
1.81 www 1573: my $uhome=&homeserver($uname,$udom);
1574: if (($uhome eq '') || ($uhome eq 'no_host')) {
1575: return 'error: no such user';
1576: }
1.80 www 1577: # -------------------------------------------------- Add student to course list
1.81 www 1578: my $reply=critical('put:'.$ENV{'course.'.$cid.'.domain'}.':'.
1579: $ENV{'course.'.$cid.'.num'}.':classlist:'.
1580: &escape($uname.':'.$udom).'='.
1581: &escape($end.':'.$start),
1582: $ENV{'course.'.$cid.'.home'});
1583: unless (($reply eq 'ok') || ($reply eq 'delayed')) {
1584: return 'error: '.$reply;
1585: }
1.80 www 1586: # ---------------------------------------------------- Add student role to user
1.83 www 1587: my $uurl='/'.$cid;
1.81 www 1588: $uurl=~s/\_/\//g;
1589: if ($usec) {
1590: $uurl.='/'.$usec;
1591: }
1592: return &assignrole($udom,$uname,$uurl,'st',$end,$start);
1.21 www 1593: }
1594:
1.84 www 1595: # ------------------------------------------------- Write to course preferences
1596:
1597: sub writecoursepref {
1598: my ($courseid,%prefs)=@_;
1599: $courseid=~s/^\///;
1600: $courseid=~s/\_/\//g;
1601: my ($cdomain,$cnum)=split(/\//,$courseid);
1602: my $chome=homeserver($cnum,$cdomain);
1603: if (($chome eq '') || ($chome eq 'no_host')) {
1604: return 'error: no such course';
1605: }
1606: my $cstring='';
1607: map {
1608: $cstring.=escape($_).'='.escape($prefs{$_}).'&';
1609: } keys %prefs;
1610: $cstring=~s/\&$//;
1611: return reply('put:'.$cdomain.':'.$cnum.':environment:'.$cstring,$chome);
1612: }
1613:
1614: # ---------------------------------------------------------- Make/modify course
1615:
1616: sub createcourse {
1617: my ($udom,$description,$url)=@_;
1618: $url=&declutter($url);
1619: my $cid='';
1620: unless (&allowed('ccc',$ENV{'user.domain'})) {
1621: return 'refused';
1622: }
1623: unless ($udom eq $ENV{'user.domain'}) {
1624: return 'refused';
1625: }
1626: # ------------------------------------------------------------------- Create ID
1627: my $uname=substr($$.time,0,5).unpack("H8",pack("I32",time)).
1628: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
1629: # ----------------------------------------------- Make sure that does not exist
1630: my $uhome=&homeserver($uname,$udom);
1631: unless (($uhome eq '') || ($uhome eq 'no_host')) {
1632: $uname=substr($$.time,0,5).unpack("H8",pack("I32",time)).
1633: unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
1634: $uhome=&homeserver($uname,$udom);
1635: unless (($uhome eq '') || ($uhome eq 'no_host')) {
1636: return 'error: unable to generate unique course-ID';
1637: }
1638: }
1639: # ------------------------------------------------------------- Make the course
1640: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':none::',
1641: $ENV{'user.home'});
1642: unless ($reply eq 'ok') { return 'error: '.$reply; }
1643: my $uhome=&homeserver($uname,$udom);
1644: if (($uhome eq '') || ($uhome eq 'no_host')) {
1645: return 'error: no such course';
1646: }
1647: &writecoursepref($udom.'_'.$uname,
1648: ('description' => $description,
1649: 'url' => $url));
1650: return '/'.$udom.'/'.$uname;
1651: }
1652:
1.21 www 1653: # ---------------------------------------------------------- Assign Custom Role
1654:
1655: sub assigncustomrole {
1656: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start)=@_;
1657: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1658: $end,$start);
1659: }
1660:
1661: # ----------------------------------------------------------------- Revoke Role
1662:
1663: sub revokerole {
1664: my ($udom,$uname,$url,$role)=@_;
1665: my $now=time;
1666: return &assignrole($udom,$uname,$url,$role,$now);
1667: }
1668:
1669: # ---------------------------------------------------------- Revoke Custom Role
1670:
1671: sub revokecustomrole {
1672: my ($udom,$uname,$url,$rdom,$rnam,$rolename)=@_;
1673: my $now=time;
1674: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now);
1.17 www 1675: }
1676:
1677: # ------------------------------------------------------------ Directory lister
1678:
1679: sub dirlist {
1680: my $uri=shift;
1.18 www 1681: $uri=~s/^\///;
1682: $uri=~s/\/$//;
1.19 www 1683: my ($res,$udom,$uname,@rest)=split(/\//,$uri);
1684: if ($udom) {
1685: if ($uname) {
1686: my $listing=reply('ls:'.$perlvar{'lonDocRoot'}.'/'.$uri,
1687: homeserver($uname,$udom));
1688: return split(/:/,$listing);
1689: } else {
1690: my $tryserver;
1691: my %allusers=();
1692: foreach $tryserver (keys %libserv) {
1693: if ($hostdom{$tryserver} eq $udom) {
1694: my $listing=reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.$udom,
1695: $tryserver);
1696: if (($listing ne 'no_such_dir') && ($listing ne 'empty')
1697: && ($listing ne 'con_lost')) {
1698: map {
1699: my ($entry,@stat)=split(/&/,$_);
1700: $allusers{$entry}=1;
1701: } split(/:/,$listing);
1702: }
1703: }
1704: }
1705: my $alluserstr='';
1706: map {
1707: $alluserstr.=$_.'&user:';
1708: } sort keys %allusers;
1709: $alluserstr=~s/:$//;
1710: return split(/:/,$alluserstr);
1711: }
1712: } else {
1713: my $tryserver;
1714: my %alldom=();
1715: foreach $tryserver (keys %libserv) {
1716: $alldom{$hostdom{$tryserver}}=1;
1717: }
1718: my $alldomstr='';
1719: map {
1720: $alldomstr.=$perlvar{'lonDocRoot'}.'/res/'.$_.'&domain:';
1721: } sort keys %alldom;
1722: $alldomstr=~s/:$//;
1723: return split(/:/,$alldomstr);
1724: }
1.26 www 1725: }
1726:
1727: # -------------------------------------------------------- Value of a Condition
1728:
1.40 www 1729: sub directcondval {
1730: my $number=shift;
1731: if ($ENV{'user.state.'.$ENV{'request.course.id'}}) {
1732: return substr($ENV{'user.state.'.$ENV{'request.course.id'}},$number,1);
1733: } else {
1734: return 2;
1735: }
1736: }
1737:
1.26 www 1738: sub condval {
1739: my $condidx=shift;
1740: my $result=0;
1.54 www 1741: my $allpathcond='';
1742: map {
1743: if (defined($ENV{'acc.cond.'.$ENV{'request.course.id'}.'.'.$_})) {
1744: $allpathcond.=
1745: '('.$ENV{'acc.cond.'.$ENV{'request.course.id'}.'.'.$_}.')|';
1746: }
1747: } split(/\|/,$condidx);
1748: $allpathcond=~s/\|$//;
1.33 www 1749: if ($ENV{'request.course.id'}) {
1.54 www 1750: if ($allpathcond) {
1.26 www 1751: my $operand='|';
1752: my @stack;
1753: map {
1754: if ($_ eq '(') {
1755: push @stack,($operand,$result)
1756: } elsif ($_ eq ')') {
1757: my $before=pop @stack;
1758: if (pop @stack eq '&') {
1759: $result=$result>$before?$before:$result;
1760: } else {
1761: $result=$result>$before?$result:$before;
1762: }
1763: } elsif (($_ eq '&') || ($_ eq '|')) {
1764: $operand=$_;
1765: } else {
1.40 www 1766: my $new=directcondval($_);
1.26 www 1767: if ($operand eq '&') {
1768: $result=$result>$new?$new:$result;
1769: } else {
1770: $result=$result>$new?$result:$new;
1771: }
1772: }
1.54 www 1773: } ($allpathcond=~/(\d+|\(|\)|\&|\|)/g);
1.26 www 1774: }
1775: }
1776: return $result;
1.28 www 1777: }
1778:
1779: # --------------------------------------------------------- Value of a Variable
1780:
1.58 www 1781: sub EXT {
1.147 www 1782: my ($varname,$symbparm)=@_;
1.68 www 1783: unless ($varname) { return ''; }
1.48 www 1784: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
1785: my $rest;
1786: if ($therest[0]) {
1787: $rest=join('.',@therest);
1788: } else {
1789: $rest='';
1790: }
1.57 www 1791: my $qualifierrest=$qualifier;
1792: if ($rest) { $qualifierrest.='.'.$rest; }
1793: my $spacequalifierrest=$space;
1794: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 1795: if ($realm eq 'user') {
1.48 www 1796: # --------------------------------------------------------------- user.resource
1797: if ($space eq 'resource') {
1.122 albertel 1798: my %restored=&restore();
1.57 www 1799: return $restored{$qualifierrest};
1.48 www 1800: # ----------------------------------------------------------------- user.access
1801: } elsif ($space eq 'access') {
1802: return &allowed($qualifier,$rest);
1803: # ------------------------------------------ user.preferences, user.environment
1804: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.57 www 1805: return $ENV{join('.',('environment',$qualifierrest))};
1.48 www 1806: # ----------------------------------------------------------------- user.course
1807: } elsif ($space eq 'course') {
1808: return $ENV{join('.',('request.course',$qualifier))};
1809: # ------------------------------------------------------------------- user.role
1810: } elsif ($space eq 'role') {
1811: my ($role,$where)=split(/\./,$ENV{'request.role'});
1812: if ($qualifier eq 'value') {
1813: return $role;
1814: } elsif ($qualifier eq 'extent') {
1815: return $where;
1816: }
1817: # ----------------------------------------------------------------- user.domain
1818: } elsif ($space eq 'domain') {
1819: return $ENV{'user.domain'};
1820: # ------------------------------------------------------------------- user.name
1821: } elsif ($space eq 'name') {
1822: return $ENV{'user.name'};
1823: # ---------------------------------------------------- Any other user namespace
1.29 www 1824: } else {
1.48 www 1825: my $item=($rest)?$qualifier.'.'.$rest:$qualifier;
1.131 albertel 1826: my %reply=&get($space,[$item]);
1.48 www 1827: return $reply{$item};
1828: }
1829: } elsif ($realm eq 'request') {
1830: # ------------------------------------------------------------- request.browser
1831: if ($space eq 'browser') {
1832: return $ENV{'browser.'.$qualifier};
1.57 www 1833: # ------------------------------------------------------------ request.filename
1834: } else {
1835: return $ENV{'request.'.$spacequalifierrest};
1.29 www 1836: }
1.28 www 1837: } elsif ($realm eq 'course') {
1.48 www 1838: # ---------------------------------------------------------- course.description
1.127 ng 1839: return $ENV{'course.'.$ENV{'request.course.id'}.'.'.
1.57 www 1840: $spacequalifierrest};
1841: } elsif ($realm eq 'resource') {
1.127 ng 1842: if ($ENV{'request.course.id'}) {
1.145 www 1843:
1844: # print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
1845:
1846:
1.60 www 1847: # ----------------------------------------------------- Cascading lookup scheme
1.147 www 1848: my $symbp;
1849: if ($symbparm) {
1850: $symbp=$symbparm;
1851: } else {
1852: $symbp=&symbread();
1853: }
1.127 ng 1854: my $mapp=(split(/\_\_\_/,$symbp))[0];
1.69 www 1855:
1.127 ng 1856: my $symbparm=$symbp.'.'.$spacequalifierrest;
1857: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
1.69 www 1858:
1.127 ng 1859: my $seclevel=
1.69 www 1860: $ENV{'request.course.id'}.'.['.
1861: $ENV{'request.course.sec'}.'].'.$spacequalifierrest;
1.127 ng 1862: my $seclevelr=
1.69 www 1863: $ENV{'request.course.id'}.'.['.
1864: $ENV{'request.course.sec'}.'].'.$symbparm;
1.127 ng 1865: my $seclevelm=
1.69 www 1866: $ENV{'request.course.id'}.'.['.
1867: $ENV{'request.course.sec'}.'].'.$mapparm;
1868:
1.127 ng 1869: my $courselevel=
1.60 www 1870: $ENV{'request.course.id'}.'.'.$spacequalifierrest;
1.127 ng 1871: my $courselevelr=
1.69 www 1872: $ENV{'request.course.id'}.'.'.$symbparm;
1.127 ng 1873: my $courselevelm=
1.69 www 1874: $ENV{'request.course.id'}.'.'.$mapparm;
1875:
1.60 www 1876: # ----------------------------------------------------------- first, check user
1.127 ng 1877: my %resourcedata=get('resourcedata',
1.131 albertel 1878: [$courselevelr,$courselevelm,$courselevel]);
1.127 ng 1879: if (($resourcedata{$courselevelr}!~/^error\:/) &&
1880: ($resourcedata{$courselevelr}!~/^con_lost/)) {
1.69 www 1881:
1.127 ng 1882: if ($resourcedata{$courselevelr}) {
1883: return $resourcedata{$courselevelr}; }
1884: if ($resourcedata{$courselevelm}) {
1885: return $resourcedata{$courselevelm}; }
1886: if ($resourcedata{$courselevel}) { return $resourcedata{$courselevel}; }
1.69 www 1887:
1.94 www 1888: } else {
1889: if ($resourcedata{$courselevelr}!~/No such file/) {
1890: &logthis("<font color=blue>WARNING:".
1891: " Trying to get resource data for ".$ENV{'user.name'}." at "
1892: .$ENV{'user.domain'}.": ".$resourcedata{$courselevelr}.
1893: "</font>");
1894: }
1.63 www 1895: }
1.95 www 1896:
1.60 www 1897: # -------------------------------------------------------- second, check course
1.96 www 1898:
1.60 www 1899: my $reply=&reply('get:'.
1.96 www 1900: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.':'.
1901: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}.
1.79 www 1902: ':resourcedata:'.
1903: &escape($seclevelr).'&'.&escape($seclevelm).'&'.&escape($seclevel).'&'.
1904: &escape($courselevelr).'&'.&escape($courselevelm).'&'.&escape($courselevel),
1.96 www 1905: $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
1.63 www 1906: if ($reply!~/^error\:/) {
1.79 www 1907: map {
1908: if ($_) { return &unescape($_); }
1909: } split(/\&/,$reply);
1.63 www 1910: }
1.94 www 1911: if (($reply=~/^con_lost/) || ($reply=~/^error\:/)) {
1912: &logthis("<font color=blue>WARNING:".
1.95 www 1913: " Getting ".$reply." asking for ".$varname." for ".
1.96 www 1914: $ENV{'course.'.$ENV{'request.course.id'}.'.num'}.
1.95 www 1915: ' at '.
1.96 www 1916: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.
1.95 www 1917: ' from '.
1.96 www 1918: $ENV{'course.'.$ENV{'request.course.id'}.'.home'}.
1.94 www 1919: "</font>");
1920: }
1.60 www 1921: # ------------------------------------------------------ third, check map parms
1.65 www 1922: my %parmhash=();
1923: my $thisparm='';
1924: if (tie(%parmhash,'GDBM_File',
1925: $ENV{'request.course.fn'}.'_parms.db',&GDBM_READER,0640)) {
1926: $thisparm=$parmhash{$symbparm};
1927: untie(%parmhash);
1.60 www 1928: }
1.65 www 1929: if ($thisparm) { return $thisparm; }
1.60 www 1930: }
1931:
1932: # --------------------------------------------- last, look in resource metadata
1.71 www 1933:
1.78 www 1934: $spacequalifierrest=~s/\./\_/;
1.71 www 1935: my $metadata=&metadata($ENV{'request.filename'},$spacequalifierrest);
1936: if ($metadata) { return $metadata; }
1.78 www 1937: $metadata=&metadata($ENV{'request.filename'},
1938: 'parameter_'.$spacequalifierrest);
1939: if ($metadata) { return $metadata; }
1.142 www 1940:
1.145 www 1941: # ------------------------------------------------------------------ Cascade up
1942:
1943: unless ($space eq '0') {
1944: my ($part,$id)=split(/\_/,$space);
1945: if ($id) {
1.147 www 1946: my $partgeneral=&EXT('resource.'.$part.'.'.$qualifierrest,
1947: $symbparm);
1.145 www 1948: if ($partgeneral) { return $partgeneral; }
1949: } else {
1.147 www 1950: my $resourcegeneral=&EXT('resource.0.'.$qualifierrest,
1951: $symbparm);
1.145 www 1952: if ($resourcegeneral) { return $resourcegeneral; }
1953: }
1954: }
1.71 www 1955:
1.48 www 1956: # ---------------------------------------------------- Any other user namespace
1957: } elsif ($realm eq 'environment') {
1958: # ----------------------------------------------------------------- environment
1.127 ng 1959: return $ENV{'environment.'.$spacequalifierrest};
1.28 www 1960: } elsif ($realm eq 'system') {
1.48 www 1961: # ----------------------------------------------------------------- system.time
1962: if ($space eq 'time') {
1963: return time;
1964: }
1.28 www 1965: }
1.48 www 1966: return '';
1.61 www 1967: }
1968:
1.71 www 1969: # ---------------------------------------------------------------- Get metadata
1970:
1971: sub metadata {
1972: my ($uri,$what)=@_;
1.78 www 1973:
1.71 www 1974: $uri=&declutter($uri);
1.73 www 1975: my $filename=$uri;
1976: $uri=~s/\.meta$//;
1.71 www 1977: unless ($metacache{$uri.':keys'}) {
1.140 www 1978: my %metathesekeys=();
1.73 www 1979: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1980: my $metastring=&getfile($perlvar{'lonDocRoot'}.'/res/'.$filename);
1.71 www 1981: my $parser=HTML::TokeParser->new(\$metastring);
1982: my $token;
1.140 www 1983: undef %metathesekeys;
1.71 www 1984: while ($token=$parser->get_token) {
1985: if ($token->[0] eq 'S') {
1.135 www 1986: if (defined($token->[2]->{'package'})) {
1.136 www 1987: my $package=$token->[2]->{'package'};
1988: my $keyroot='';
1989: if (defined($token->[2]->{'part'})) {
1990: $keyroot.='_'.$token->[2]->{'part'};
1991: }
1992: if (defined($token->[2]->{'id'})) {
1993: $keyroot.='_'.$token->[2]->{'id'};
1994: }
1995: if ($metacache{$uri.':packages'}) {
1996: $metacache{$uri.':packages'}.=','.$package.$keyroot;
1997: } else {
1998: $metacache{$uri.':packages'}=$package.$keyroot;
1999: }
1.137 www 2000: map {
2001: if ($_=~/^$package\&/) {
2002: my ($pack,$name,$subp)=split(/\&/,$_);
1.139 www 2003: my $value=$packagetab{$_};
1.144 www 2004: my $part=$keyroot;
2005: $part=~s/^\_//;
1.139 www 2006: if ($subp eq 'display') {
2007: $value.=' [Part: '.$part.']';
2008: }
2009: my $unikey='parameter'.$keyroot.'_'.$name;
1.140 www 2010: $metathesekeys{$unikey}=1;
1.144 www 2011: $metacache{$uri.':'.$unikey.'.part'}=$part;
1.141 www 2012: unless
2013: (defined($metacache{$uri.':'.$unikey.'.'.$subp})) {
2014: $metacache{$uri.':'.$unikey.'.'.$subp}=$value;
2015: }
1.137 www 2016: }
2017: } keys %packagetab;
1.135 www 2018: } else {
1.71 www 2019: my $entry=$token->[1];
2020: my $unikey=$entry;
1.72 www 2021: if (defined($token->[2]->{'part'})) {
1.71 www 2022: $unikey.='_'.$token->[2]->{'part'};
1.136 www 2023: }
2024: if (defined($token->[2]->{'id'})) {
2025: $unikey.='_'.$token->[2]->{'id'};
1.71 www 2026: }
1.72 www 2027: if (defined($token->[2]->{'name'})) {
1.71 www 2028: $unikey.='_'.$token->[2]->{'name'};
2029: }
1.140 www 2030: $metathesekeys{$unikey}=1;
1.71 www 2031: map {
2032: $metacache{$uri.':'.$unikey.'.'.$_}=$token->[2]->{$_};
1.72 www 2033: } @{$token->[3]};
1.78 www 2034: unless (
2035: $metacache{$uri.':'.$unikey}=$parser->get_text('/'.$entry)
2036: ) { $metacache{$uri.':'.$unikey}=
2037: $metacache{$uri.':'.$unikey.'.default'};
2038: }
1.135 www 2039: }
1.140 www 2040: }
1.71 www 2041: }
1.140 www 2042: $metacache{$uri.':keys'}=join(',',keys %metathesekeys);
1.71 www 2043: }
2044: return $metacache{$uri.':'.$what};
2045: }
2046:
1.31 www 2047: # ------------------------------------------------- Update symbolic store links
2048:
2049: sub symblist {
2050: my ($mapname,%newhash)=@_;
2051: $mapname=declutter($mapname);
2052: my %hash;
2053: if (($ENV{'request.course.fn'}) && (%newhash)) {
2054: if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'_symb.db',
2055: &GDBM_WRCREAT,0640)) {
2056: map {
2057: $hash{declutter($_)}=$mapname.'___'.$newhash{$_};
2058: } keys %newhash;
2059: if (untie(%hash)) {
2060: return 'ok';
2061: }
2062: }
2063: }
2064: return 'error';
2065: }
2066:
2067: # ------------------------------------------------------ Return symb list entry
2068:
2069: sub symbread {
1.44 www 2070: my $thisfn=shift;
2071: unless ($thisfn) {
2072: $thisfn=$ENV{'request.filename'};
2073: }
2074: $thisfn=declutter($thisfn);
1.31 www 2075: my %hash;
1.37 www 2076: my %bighash;
2077: my $syval='';
1.45 www 2078: if (($ENV{'request.course.fn'}) && ($thisfn)) {
1.31 www 2079: if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'_symb.db',
2080: &GDBM_READER,0640)) {
2081: $syval=$hash{$thisfn};
1.37 www 2082: untie(%hash);
2083: }
2084: # ---------------------------------------------------------- There was an entry
2085: if ($syval) {
2086: unless ($syval=~/\_\d+$/) {
2087: unless ($ENV{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.44 www 2088: &appenv('request.ambiguous' => $thisfn);
1.37 www 2089: return '';
2090: }
2091: $syval.=$1;
2092: }
2093: } else {
2094: # ------------------------------------------------------- Was not in symb table
2095: if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
2096: &GDBM_READER,0640)) {
2097: # ---------------------------------------------- Get ID(s) for current resource
2098: my $ids=$bighash{'ids_/res/'.$thisfn};
1.65 www 2099: unless ($ids) {
2100: $ids=$bighash{'ids_/'.$thisfn};
2101: }
1.37 www 2102: if ($ids) {
2103: # ------------------------------------------------------------------- Has ID(s)
2104: my @possibilities=split(/\,/,$ids);
1.39 www 2105: if ($#possibilities==0) {
2106: # ----------------------------------------------- There is only one possibility
1.37 www 2107: my ($mapid,$resid)=split(/\./,$ids);
2108: $syval=declutter($bighash{'map_id_'.$mapid}).'___'.$resid;
2109: } else {
1.39 www 2110: # ------------------------------------------ There is more than one possibility
2111: my $realpossible=0;
2112: map {
2113: my $file=$bighash{'src_'.$_};
2114: if (&allowed('bre',$file)) {
2115: my ($mapid,$resid)=split(/\./,$_);
2116: if ($bighash{'map_type_'.$mapid} ne 'page') {
2117: $realpossible++;
2118: $syval=declutter($bighash{'map_id_'.$mapid}).
2119: '___'.$resid;
2120: }
2121: }
2122: } @possibilities;
2123: if ($realpossible!=1) { $syval=''; }
1.37 www 2124: }
2125: }
2126: untie(%bighash)
2127: }
1.31 www 2128: }
1.62 www 2129: if ($syval) {
2130: return $syval.'___'.$thisfn;
2131: }
1.31 www 2132: }
1.44 www 2133: &appenv('request.ambiguous' => $thisfn);
1.31 www 2134: return '';
2135: }
2136:
2137: # ---------------------------------------------------------- Return random seed
2138:
1.32 www 2139: sub numval {
2140: my $txt=shift;
2141: $txt=~tr/A-J/0-9/;
2142: $txt=~tr/a-j/0-9/;
2143: $txt=~tr/K-T/0-9/;
2144: $txt=~tr/k-t/0-9/;
2145: $txt=~tr/U-Z/0-5/;
2146: $txt=~tr/u-z/0-5/;
2147: $txt=~s/\D//g;
2148: return int($txt);
2149: }
2150:
1.31 www 2151: sub rndseed {
1.155 ! albertel 2152: my ($symb,$courseid,$domain,$username)=@_;
! 2153: if (!$symb) {
! 2154: unless ($symb=&symbread()) { return time; }
! 2155: }
! 2156: if (!$courseid) { $courseid=$ENV{'request.course.id'};}
! 2157: if (!$domain) {$domain=$ENV{'user.domain'};}
! 2158: if (!$username) {$username=$ENV{'user.name'};}
! 2159: {
1.98 albertel 2160: use integer;
2161: my $symbchck=unpack("%32C*",$symb) << 27;
1.100 albertel 2162: my $symbseed=numval($symb) << 22;
1.155 ! albertel 2163: my $namechck=unpack("%32C*",$username) << 17;
! 2164: my $nameseed=numval($username) << 12;
! 2165: my $domainseed=unpack("%32C*",$domain) << 7;
! 2166: my $courseseed=unpack("%32C*",$courseid);
1.98 albertel 2167: my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
1.99 albertel 2168: #uncommenting these lines can break things!
2169: #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
2170: #&Apache::lonxml::debug("rndseed :$num:$symb");
1.98 albertel 2171: return $num;
2172: }
1.36 albertel 2173: }
2174:
1.76 www 2175: sub ireceipt {
2176: my ($funame,$fudom,$fucourseid,$fusymb)=@_;
2177: my $cuname=unpack("%32C*",$funame);
2178: my $cudom=unpack("%32C*",$fudom);
2179: my $cucourseid=unpack("%32C*",$fucourseid);
2180: my $cusymb=unpack("%32C*",$fusymb);
1.77 www 2181: my $cunique=unpack("%32C*",$perlvar{'lonReceipt'});
1.76 www 2182: return unpack("%32C*",$perlvar{'lonHostID'}).'-'.
2183: ($cunique%$cuname+
2184: $cunique%$cudom+
2185: $cusymb%$cuname+
2186: $cusymb%$cudom+
2187: $cucourseid%$cuname+
2188: $cucourseid%$cudom);
2189: }
2190:
2191: sub receipt {
2192: return &ireceipt($ENV{'user.name'},$ENV{'user.domain'},
2193: $ENV{'request.course.id'},&symbread());
2194: }
2195:
1.36 albertel 2196: # ------------------------------------------------------------ Serves up a file
2197: # returns either the contents of the file or a -1
2198: sub getfile {
2199: my $file=shift;
1.37 www 2200: &repcopy($file);
1.36 albertel 2201: if (! -e $file ) { return -1; };
2202: my $fh=Apache::File->new($file);
2203: my $a='';
2204: while (<$fh>) { $a .=$_; }
2205: return $a
2206: }
2207:
2208: sub filelocation {
2209: my ($dir,$file) = @_;
2210: my $location;
2211: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
1.59 albertel 2212: if ($file=~m:^/~:) { # is a contruction space reference
2213: $location = $file;
2214: $location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:;
1.36 albertel 2215: } else {
1.59 albertel 2216: $file=~s/^$perlvar{'lonDocRoot'}//;
2217: $file=~s:^/*res::;
2218: if ( !( $file =~ m:^/:) ) {
2219: $location = $dir. '/'.$file;
2220: } else {
2221: $location = '/home/httpd/html/res'.$file;
2222: }
1.36 albertel 2223: }
2224: $location=~s://+:/:g; # remove duplicate /
1.46 www 2225: while ($location=~m:/\.\./:) {$location=~ s:/[^/]+/\.\./:/:g;} #remove dir/..
2226: return $location;
2227: }
1.36 albertel 2228:
1.46 www 2229: sub hreflocation {
2230: my ($dir,$file)=@_;
2231: unless (($_=~/^http:\/\//i) || ($_=~/^\//)) {
2232: my $finalpath=filelocation($dir,$file);
2233: $finalpath=~s/^\/home\/httpd\/html//;
2234: return $finalpath;
2235: } else {
2236: return $file;
2237: }
1.31 www 2238: }
2239:
2240: # ------------------------------------------------------------- Declutters URLs
2241:
2242: sub declutter {
2243: my $thisfn=shift;
2244: $thisfn=~s/^$perlvar{'lonDocRoot'}//;
2245: $thisfn=~s/^\///;
2246: $thisfn=~s/^res\///;
2247: return $thisfn;
1.12 www 2248: }
2249:
2250: # -------------------------------------------------------- Escape Special Chars
2251:
2252: sub escape {
2253: my $str=shift;
2254: $str =~ s/(\W)/"%".unpack('H2',$1)/eg;
2255: return $str;
2256: }
2257:
2258: # ----------------------------------------------------- Un-Escape Special Chars
2259:
2260: sub unescape {
2261: my $str=shift;
2262: $str =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
2263: return $str;
2264: }
1.11 www 2265:
1.1 albertel 2266: # ================================================================ Main Program
2267:
2268: sub BEGIN {
2269: if ($readit ne 'done') {
2270: # ------------------------------------------------------------ Read access.conf
2271: {
2272: my $config=Apache::File->new("/etc/httpd/conf/access.conf");
2273:
2274: while (my $configline=<$config>) {
2275: if ($configline =~ /PerlSetVar/) {
2276: my ($dummy,$varname,$varvalue)=split(/\s+/,$configline);
1.8 www 2277: chomp($varvalue);
1.1 albertel 2278: $perlvar{$varname}=$varvalue;
2279: }
2280: }
2281: }
2282:
2283: # ------------------------------------------------------------- Read hosts file
2284: {
2285: my $config=Apache::File->new("$perlvar{'lonTabDir'}/hosts.tab");
2286:
2287: while (my $configline=<$config>) {
1.154 www 2288: chomp($configline);
1.1 albertel 2289: my ($id,$domain,$role,$name,$ip)=split(/:/,$configline);
2290: $hostname{$id}=$name;
2291: $hostdom{$id}=$domain;
1.150 www 2292: $hostip{$id}=$ip;
1.1 albertel 2293: if ($role eq 'library') { $libserv{$id}=$name; }
2294: }
2295: }
2296:
2297: # ------------------------------------------------------ Read spare server file
2298: {
2299: my $config=Apache::File->new("$perlvar{'lonTabDir'}/spare.tab");
2300:
2301: while (my $configline=<$config>) {
2302: chomp($configline);
2303: if (($configline) && ($configline ne $perlvar{'lonHostID'})) {
2304: $spareid{$configline}=1;
2305: }
2306: }
2307: }
1.11 www 2308: # ------------------------------------------------------------ Read permissions
2309: {
2310: my $config=Apache::File->new("$perlvar{'lonTabDir'}/roles.tab");
2311:
2312: while (my $configline=<$config>) {
2313: chomp($configline);
2314: my ($role,$perm)=split(/ /,$configline);
2315: if ($perm ne '') { $pr{$role}=$perm; }
2316: }
2317: }
2318:
2319: # -------------------------------------------- Read plain texts for permissions
2320: {
2321: my $config=Apache::File->new("$perlvar{'lonTabDir'}/rolesplain.tab");
2322:
2323: while (my $configline=<$config>) {
2324: chomp($configline);
2325: my ($short,$plain)=split(/:/,$configline);
2326: if ($plain ne '') { $prp{$short}=$plain; }
1.135 www 2327: }
2328: }
2329:
2330: # ---------------------------------------------------------- Read package table
2331: {
2332: my $config=Apache::File->new("$perlvar{'lonTabDir'}/packages.tab");
2333:
2334: while (my $configline=<$config>) {
2335: chomp($configline);
2336: my ($short,$plain)=split(/:/,$configline);
1.143 www 2337: my ($pack,$name)=split(/\&/,$short);
2338: if ($plain ne '') {
2339: $packagetab{$pack.'&'.$name.'&name'}=$name;
2340: $packagetab{$short}=$plain;
2341: }
1.25 www 2342: }
2343: }
2344:
2345: # ------------------------------------------------------------- Read file types
2346: {
2347: my $config=Apache::File->new("$perlvar{'lonTabDir'}/filetypes.tab");
2348:
2349: while (my $configline=<$config>) {
2350: chomp($configline);
2351: my ($ending,$emb,@descr)=split(/\s+/,$configline);
2352: if ($descr[0] ne '') {
2353: $fe{$ending}=$emb;
2354: $fd{$ending}=join(' ',@descr);
2355: }
1.11 www 2356: }
2357: }
2358:
1.71 www 2359: %metacache=();
1.22 www 2360:
1.1 albertel 2361: $readit='done';
1.12 www 2362: &logthis('<font color=yellow>INFO: Read configuration</font>');
1.1 albertel 2363: }
2364: }
2365: 1;
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