Annotation of loncom/lonnet/perl/lonnet.pm, revision 1.80
1.1 albertel 1: # The LearningOnline Network
2: # TCP networking package
1.12 www 3: #
4: # Functions for use by content handlers:
5: #
6: # plaintext(short) : plain text explanation of short term
1.25 www 7: # fileembstyle(ext) : embed style in page for file extension
8: # filedescription(ext) : descriptor text for file extension
1.29 www 9: # allowed(short,url) : returns codes for allowed actions
10: # F: full access
11: # U,I,K: authentication modes (cxx only)
12: # '': forbidden
13: # 1: user needs to choose course
14: # 2: browse allowed
1.21 www 15: # definerole(rolename,sys,dom,cou) : define a custom role rolename
16: # set priviledges in format of lonTabs/roles.tab for
17: # system, domain and course level,
18: # assignrole(udom,uname,url,role,end,start) : give a role to a user for the
19: # level given by url. Optional start and end dates
20: # (leave empty string or zero for "no date")
21: # assigncustomrole (udom,uname,url,rdom,rnam,rolename,end,start) : give a
22: # custom role to a user for the level given by url.
23: # Specify name and domain of role author, and role name
24: # revokerole (udom,uname,url,role) : Revoke a role for url
25: # revokecustomrole (udom,uname,url,rdom,rnam,rolename) : Revoke a custom role
1.24 www 26: # appenv(hash) : adds hash to session environment
1.56 www 27: # delenv(varname) : deletes all environment entries starting with varname
1.12 www 28: # store(hash) : stores hash permanently for this url
1.47 www 29: # cstore(hash) : critical store
1.12 www 30: # restore : returns hash for this url
31: # eget(namesp,array) : returns hash with keys from array filled in from namesp
32: # get(namesp,array) : returns hash with keys from array filled in from namesp
1.38 www 33: # del(namesp,array) : deletes keys out of array from namesp
1.12 www 34: # put(namesp,hash) : stores hash in namesp
1.47 www 35: # cput(namesp,hash) : critical put
1.15 www 36: # dump(namesp) : dumps the complete namespace into a hash
1.23 www 37: # ssi(url,hash) : does a complete request cycle on url to localhost, posts
38: # hash
1.34 www 39: # coursedescription(id) : returns and caches course description for id
1.17 www 40: # repcopy(filename) : replicate file
41: # dirlist(url) : gets a directory listing
1.40 www 42: # directcondval(index) : reading condition value of single condition from
43: # state string
1.28 www 44: # condval(index) : value of condition index based on state
1.58 www 45: # EXT(name) : value of a variable
1.31 www 46: # symblist(map,hash) : Updates symbolic storage links
1.44 www 47: # symbread([filename]) : returns the data handle (filename optional)
1.76 www 48: # rndseed() : returns a random seed
49: # receipt() : returns a receipt to be given out to users
1.36 albertel 50: # getfile(filename) : returns the contents of filename, or a -1 if it can't
51: # be found, replicates and subscribes to the file
52: # filelocation(dir,file) : returns a farily clean absolute reference to file
53: # from the directory dir
1.46 www 54: # hreflocation(dir,file) : same as filelocation, but for hrefs
1.47 www 55: # log(domain,user,home,msg) : write to permanent log for user
1.70 www 56: # usection(domain,user,courseid) : output of section name/number or '' for
57: # "not in course" and '-1' for "no section"
58: # userenvironment(domain,user,what) : puts out any environment parameter
59: # for a user
60: # idput(domain,hash) : writes IDs for users from hash (name=>id,name=>id)
61: # idget(domain,array): returns hash with usernames (id=>name,id=>name) for
62: # an array of IDs
63: # idrget(domain,array): returns hash with IDs for usernames (name=>id,...) for
64: # an array of names
1.73 www 65: # metadata(file,entry): returns the metadata entry for a file. entry='keys'
66: # returns a comma separated list of keys
1.12 www 67: #
1.1 albertel 68: # 6/1/99,6/2,6/10,6/11,6/12,6/14,6/26,6/28,6/29,6/30,
1.5 www 69: # 7/1,7/2,7/9,7/10,7/12,7/14,7/15,7/19,
1.8 www 70: # 11/8,11/16,11/18,11/22,11/23,12/22,
1.12 www 71: # 01/06,01/13,02/24,02/28,02/29,
72: # 03/01,03/02,03/06,03/07,03/13,
1.15 www 73: # 04/05,05/29,05/31,06/01,
74: # 06/05,06/26 Gerd Kortemeyer
75: # 06/26 Ben Tyszka
1.22 www 76: # 06/30,07/15,07/17,07/18,07/20,07/21,07/22,07/25 Gerd Kortemeyer
1.23 www 77: # 08/14 Ben Tyszka
1.36 albertel 78: # 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 79: # 10/04 Gerd Kortemeyer
1.36 albertel 80: # 10/04 Guy Albertelli
1.54 www 81: # 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 82: # 10/30,10/31,
1.75 www 83: # 11/2,11/14,11/15,11/16,11/20,11/21,11/22,11/25,11/27,
1.80 ! www 84: # 12/02,12/12,12/13 Gerd Kortemeyer
1.1 albertel 85:
86: package Apache::lonnet;
87:
88: use strict;
89: use Apache::File;
1.8 www 90: use LWP::UserAgent();
1.15 www 91: use HTTP::Headers;
1.11 www 92: use vars
1.77 www 93: qw(%perlvar %hostname %homecache %spareid %hostdom %libserv %pr %prp %fe %fd $readit %metacache);
1.1 albertel 94: use IO::Socket;
1.31 www 95: use GDBM_File;
1.8 www 96: use Apache::Constants qw(:common :http);
1.71 www 97: use HTML::TokeParser;
1.1 albertel 98:
99: # --------------------------------------------------------------------- Logging
100:
101: sub logthis {
102: my $message=shift;
103: my $execdir=$perlvar{'lonDaemons'};
104: my $now=time;
105: my $local=localtime($now);
106: my $fh=Apache::File->new(">>$execdir/logs/lonnet.log");
107: print $fh "$local ($$): $message\n";
108: return 1;
109: }
110:
111: sub logperm {
112: my $message=shift;
113: my $execdir=$perlvar{'lonDaemons'};
114: my $now=time;
115: my $local=localtime($now);
116: my $fh=Apache::File->new(">>$execdir/logs/lonnet.perm.log");
117: print $fh "$now:$message:$local\n";
118: return 1;
119: }
120:
121: # -------------------------------------------------- Non-critical communication
122: sub subreply {
123: my ($cmd,$server)=@_;
124: my $peerfile="$perlvar{'lonSockDir'}/$server";
125: my $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
126: Type => SOCK_STREAM,
127: Timeout => 10)
128: or return "con_lost";
129: print $client "$cmd\n";
130: my $answer=<$client>;
1.9 www 131: if (!$answer) { $answer="con_lost"; }
1.1 albertel 132: chomp($answer);
133: return $answer;
134: }
135:
136: sub reply {
137: my ($cmd,$server)=@_;
138: my $answer=subreply($cmd,$server);
139: if ($answer eq 'con_lost') { $answer=subreply($cmd,$server); }
1.65 www 140: if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
1.12 www 141: &logthis("<font color=blue>WARNING:".
142: " $cmd to $server returned $answer</font>");
143: }
1.1 albertel 144: return $answer;
145: }
146:
147: # ----------------------------------------------------------- Send USR1 to lonc
148:
149: sub reconlonc {
150: my $peerfile=shift;
151: &logthis("Trying to reconnect for $peerfile");
152: my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
153: if (my $fh=Apache::File->new("$loncfile")) {
154: my $loncpid=<$fh>;
155: chomp($loncpid);
156: if (kill 0 => $loncpid) {
157: &logthis("lonc at pid $loncpid responding, sending USR1");
158: kill USR1 => $loncpid;
159: sleep 1;
160: if (-e "$peerfile") { return; }
161: &logthis("$peerfile still not there, give it another try");
162: sleep 5;
163: if (-e "$peerfile") { return; }
1.12 www 164: &logthis(
165: "<font color=blue>WARNING: $peerfile still not there, giving up</font>");
1.1 albertel 166: } else {
1.12 www 167: &logthis(
168: "<font color=blue>WARNING:".
169: " lonc at pid $loncpid not responding, giving up</font>");
1.1 albertel 170: }
171: } else {
1.12 www 172: &logthis('<font color=blue>WARNING: lonc not running, giving up</font>');
1.1 albertel 173: }
174: }
175:
176: # ------------------------------------------------------ Critical communication
1.12 www 177:
1.1 albertel 178: sub critical {
179: my ($cmd,$server)=@_;
180: my $answer=reply($cmd,$server);
181: if ($answer eq 'con_lost') {
182: my $pingreply=reply('ping',$server);
183: &reconlonc("$perlvar{'lonSockDir'}/$server");
184: my $pongreply=reply('pong',$server);
185: &logthis("Ping/Pong for $server: $pingreply/$pongreply");
186: $answer=reply($cmd,$server);
187: if ($answer eq 'con_lost') {
188: my $now=time;
189: my $middlename=$cmd;
1.5 www 190: $middlename=substr($middlename,0,16);
1.1 albertel 191: $middlename=~s/\W//g;
192: my $dfilename=
193: "$perlvar{'lonSockDir'}/delayed/$now.$middlename.$server";
194: {
195: my $dfh;
196: if ($dfh=Apache::File->new(">$dfilename")) {
1.7 www 197: print $dfh "$cmd\n";
1.1 albertel 198: }
199: }
200: sleep 2;
201: my $wcmd='';
202: {
203: my $dfh;
204: if ($dfh=Apache::File->new("$dfilename")) {
205: $wcmd=<$dfh>;
206: }
207: }
208: chomp($wcmd);
1.7 www 209: if ($wcmd eq $cmd) {
1.12 www 210: &logthis("<font color=blue>WARNING: ".
211: "Connection buffer $dfilename: $cmd</font>");
1.1 albertel 212: &logperm("D:$server:$cmd");
213: return 'con_delayed';
214: } else {
1.12 www 215: &logthis("<font color=red>CRITICAL:"
216: ." Critical connection failed: $server $cmd</font>");
1.1 albertel 217: &logperm("F:$server:$cmd");
218: return 'con_failed';
219: }
220: }
221: }
222: return $answer;
223: }
224:
1.5 www 225: # ---------------------------------------------------------- Append Environment
226:
227: sub appenv {
1.6 www 228: my %newenv=@_;
1.35 www 229: map {
230: if (($newenv{$_}=~/^user\.role/) || ($newenv{$_}=~/^user\.priv/)) {
231: &logthis("<font color=blue>WARNING: ".
232: "Attempt to modify environment ".$_." to ".$newenv{$_});
233: delete($newenv{$_});
234: } else {
235: $ENV{$_}=$newenv{$_};
236: }
237: } keys %newenv;
1.6 www 238: my @oldenv;
239: {
240: my $fh;
241: unless ($fh=Apache::File->new("$ENV{'user.environment'}")) {
1.5 www 242: return 'error';
1.6 www 243: }
244: @oldenv=<$fh>;
245: }
246: for (my $i=0; $i<=$#oldenv; $i++) {
247: chomp($oldenv[$i]);
1.9 www 248: if ($oldenv[$i] ne '') {
249: my ($name,$value)=split(/=/,$oldenv[$i]);
1.24 www 250: unless (defined($newenv{$name})) {
251: $newenv{$name}=$value;
252: }
1.9 www 253: }
1.6 www 254: }
255: {
256: my $fh;
257: unless ($fh=Apache::File->new(">$ENV{'user.environment'}")) {
258: return 'error';
259: }
260: my $newname;
261: foreach $newname (keys %newenv) {
262: print $fh "$newname=$newenv{$newname}\n";
263: }
1.56 www 264: }
265: return 'ok';
266: }
267: # ----------------------------------------------------- Delete from Environment
268:
269: sub delenv {
270: my $delthis=shift;
271: my %newenv=();
272: if (($delthis=~/user\.role/) || ($delthis=~/user\.priv/)) {
273: &logthis("<font color=blue>WARNING: ".
274: "Attempt to delete from environment ".$delthis);
275: return 'error';
276: }
277: my @oldenv;
278: {
279: my $fh;
280: unless ($fh=Apache::File->new("$ENV{'user.environment'}")) {
281: return 'error';
282: }
283: @oldenv=<$fh>;
284: }
285: {
286: my $fh;
287: unless ($fh=Apache::File->new(">$ENV{'user.environment'}")) {
288: return 'error';
289: }
290: map {
291: unless ($_=~/^$delthis/) { print $fh $_; }
292: } @oldenv;
1.5 www 293: }
294: return 'ok';
295: }
1.1 albertel 296:
297: # ------------------------------ Find server with least workload from spare.tab
1.11 www 298:
1.1 albertel 299: sub spareserver {
300: my $tryserver;
301: my $spareserver='';
302: my $lowestserver=100;
303: foreach $tryserver (keys %spareid) {
304: my $answer=reply('load',$tryserver);
305: if (($answer =~ /\d/) && ($answer<$lowestserver)) {
306: $spareserver="http://$hostname{$tryserver}";
307: $lowestserver=$answer;
308: }
309: }
310: return $spareserver;
311: }
312:
313: # --------- Try to authenticate user from domain's lib servers (first this one)
1.11 www 314:
1.1 albertel 315: sub authenticate {
316: my ($uname,$upass,$udom)=@_;
1.12 www 317: $upass=escape($upass);
1.1 albertel 318: if (($perlvar{'lonRole'} eq 'library') &&
319: ($udom eq $perlvar{'lonDefDomain'})) {
1.3 www 320: my $answer=reply("encrypt:auth:$udom:$uname:$upass",$perlvar{'lonHostID'});
1.2 www 321: if ($answer =~ /authorized/) {
1.9 www 322: if ($answer eq 'authorized') {
323: &logthis("User $uname at $udom authorized by local server");
324: return $perlvar{'lonHostID'};
325: }
326: if ($answer eq 'non_authorized') {
327: &logthis("User $uname at $udom rejected by local server");
328: return 'no_host';
329: }
1.2 www 330: }
1.1 albertel 331: }
332:
333: my $tryserver;
334: foreach $tryserver (keys %libserv) {
335: if ($hostdom{$tryserver} eq $udom) {
1.10 www 336: my $answer=reply("encrypt:auth:$udom:$uname:$upass",$tryserver);
1.1 albertel 337: if ($answer =~ /authorized/) {
1.9 www 338: if ($answer eq 'authorized') {
339: &logthis("User $uname at $udom authorized by $tryserver");
340: return $tryserver;
341: }
342: if ($answer eq 'non_authorized') {
343: &logthis("User $uname at $udom rejected by $tryserver");
344: return 'no_host';
345: }
1.1 albertel 346: }
347: }
1.9 www 348: }
349: &logthis("User $uname at $udom could not be authenticated");
1.1 albertel 350: return 'no_host';
351: }
352:
353: # ---------------------- Find the homebase for a user from domain's lib servers
1.11 www 354:
1.1 albertel 355: sub homeserver {
356: my ($uname,$udom)=@_;
357:
358: my $index="$uname:$udom";
359: if ($homecache{$index}) { return "$homecache{$index}"; }
360:
361: my $tryserver;
362: foreach $tryserver (keys %libserv) {
363: if ($hostdom{$tryserver} eq $udom) {
364: my $answer=reply("home:$udom:$uname",$tryserver);
365: if ($answer eq 'found') {
366: $homecache{$index}=$tryserver;
367: return $tryserver;
368: }
369: }
370: }
371: return 'no_host';
1.70 www 372: }
373:
374: # ------------------------------------- Find the usernames behind a list of IDs
375:
376: sub idget {
377: my ($udom,@ids)=@_;
378: my %returnhash=();
379:
380: my $tryserver;
381: foreach $tryserver (keys %libserv) {
382: if ($hostdom{$tryserver} eq $udom) {
383: my $idlist=join('&',@ids);
384: $idlist=~tr/A-Z/a-z/;
385: my $reply=&reply("idget:$udom:".$idlist,$tryserver);
386: my @answer=();
1.76 www 387: if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
1.70 www 388: @answer=split(/\&/,$reply);
389: } ;
390: my $i;
391: for ($i=0;$i<=$#ids;$i++) {
392: if ($answer[$i]) {
393: $returnhash{$ids[$i]}=$answer[$i];
394: }
395: }
396: }
397: }
398: return %returnhash;
399: }
400:
401: # ------------------------------------- Find the IDs behind a list of usernames
402:
403: sub idrget {
404: my ($udom,@unames)=@_;
405: my %returnhash=();
406: map {
407: $returnhash{$_}=(&userenvironment($udom,$_,'id'))[1];
408: } @unames;
409: return %returnhash;
410: }
411:
412: # ------------------------------- Store away a list of names and associated IDs
413:
414: sub idput {
415: my ($udom,%ids)=@_;
416: my %servers=();
417: map {
418: my $uhom=&homeserver($_,$udom);
419: if ($uhom ne 'no_host') {
420: my $id=&escape($ids{$_});
421: $id=~tr/A-Z/a-z/;
422: my $unam=&escape($_);
423: if ($servers{$uhom}) {
424: $servers{$uhom}.='&'.$id.'='.$unam;
425: } else {
426: $servers{$uhom}=$id.'='.$unam;
427: }
428: &critical('put:'.$udom.':'.$unam.':environment:id='.$id,$uhom);
429: }
430: } keys %ids;
431: map {
432: &critical('idput:'.$udom.':'.$servers{$_},$_);
433: } keys %servers;
434: }
435:
436: # ------------------------------------- Find the section of student in a course
437:
438: sub usection {
439: my ($udom,$unam,$courseid)=@_;
440: $courseid=~s/\_/\//g;
441: $courseid=~s/^(\w)/\/$1/;
442: map {
443: my ($key,$value)=split(/\=/,$_);
444: $key=&unescape($key);
445: if ($key=~/^$courseid(?:\/)*(\w+)*\_st$/) {
446: my $section=$1;
447: if ($key eq $courseid.'_st') { $section=''; }
448: my ($dummy,$end,$start)=split(/\_/,&unescape($value));
449: my $now=time;
450: my $notactive=0;
451: if ($start) {
452: if ($now<$start) { $notactive=1; }
453: }
454: if ($end) {
455: if ($now>$end) { $notactive=1; }
456: }
457: unless ($notactive) { return $section; }
458: }
459: } split(/\&/,&reply('dump:'.$udom.':'.$unam.':roles',
460: &homeserver($unam,$udom)));
461: return '-1';
462: }
463:
464: # ------------------------------------- Read an entry from a user's environment
465:
466: sub userenvironment {
467: my ($udom,$unam,@what)=@_;
468: my %returnhash=();
469: my @answer=split(/\&/,
470: &reply('get:'.$udom.':'.$unam.':environment:'.join('&',@what),
471: &homeserver($unam,$udom)));
472: my $i;
473: for ($i=0;$i<=$#what;$i++) {
474: $returnhash{$what[$i]}=&unescape($answer[$i]);
475: }
476: return %returnhash;
1.1 albertel 477: }
478:
479: # ----------------------------- Subscribe to a resource, return URL if possible
1.11 www 480:
1.1 albertel 481: sub subscribe {
482: my $fname=shift;
483: my $author=$fname;
484: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
485: my ($udom,$uname)=split(/\//,$author);
486: my $home=homeserver($uname,$udom);
487: if (($home eq 'no_host') || ($home eq $perlvar{'lonHostID'})) {
488: return 'not_found';
489: }
490: my $answer=reply("sub:$fname",$home);
1.64 www 491: if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
492: $answer.=' by '.$home;
493: }
1.1 albertel 494: return $answer;
495: }
496:
1.8 www 497: # -------------------------------------------------------------- Replicate file
498:
499: sub repcopy {
500: my $filename=shift;
1.23 www 501: $filename=~s/\/+/\//g;
1.8 www 502: my $transname="$filename.in.transfer";
1.17 www 503: if ((-e $filename) || (-e $transname)) { return OK; }
1.8 www 504: my $remoteurl=subscribe($filename);
1.64 www 505: if ($remoteurl =~ /^con_lost by/) {
506: &logthis("Subscribe returned $remoteurl: $filename");
1.8 www 507: return HTTP_SERVICE_UNAVAILABLE;
508: } elsif ($remoteurl eq 'not_found') {
509: &logthis("Subscribe returned not_found: $filename");
510: return HTTP_NOT_FOUND;
1.64 www 511: } elsif ($remoteurl =~ /^rejected by/) {
512: &logthis("Subscribe returned $remoteurl: $filename");
1.8 www 513: return FORBIDDEN;
1.20 www 514: } elsif ($remoteurl eq 'directory') {
515: return OK;
1.8 www 516: } else {
517: my @parts=split(/\//,$filename);
518: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
519: if ($path ne "$perlvar{'lonDocRoot'}/res") {
520: &logthis("Malconfiguration for replication: $filename");
521: return HTTP_BAD_REQUEST;
522: }
523: my $count;
524: for ($count=5;$count<$#parts;$count++) {
525: $path.="/$parts[$count]";
526: if ((-e $path)!=1) {
527: mkdir($path,0777);
528: }
529: }
530: my $ua=new LWP::UserAgent;
531: my $request=new HTTP::Request('GET',"$remoteurl");
532: my $response=$ua->request($request,$transname);
533: if ($response->is_error()) {
534: unlink($transname);
535: my $message=$response->status_line;
1.12 www 536: &logthis("<font color=blue>WARNING:"
537: ." LWP get: $message: $filename</font>");
1.8 www 538: return HTTP_SERVICE_UNAVAILABLE;
539: } else {
1.16 www 540: if ($remoteurl!~/\.meta$/) {
541: my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
542: my $mresponse=$ua->request($mrequest,$filename.'.meta');
543: if ($mresponse->is_error()) {
544: unlink($filename.'.meta');
545: &logthis(
546: "<font color=yellow>INFO: No metadata: $filename</font>");
547: }
548: }
1.8 www 549: rename($transname,$filename);
550: return OK;
551: }
552: }
553: }
554:
1.15 www 555: # --------------------------------------------------------- Server Side Include
556:
557: sub ssi {
558:
1.23 www 559: my ($fn,%form)=@_;
1.15 www 560:
561: my $ua=new LWP::UserAgent;
1.23 www 562:
563: my $request;
564:
565: if (%form) {
566: $request=new HTTP::Request('POST',"http://".$ENV{'HTTP_HOST'}.$fn);
567: $request->content(join '&', map { "$_=$form{$_}" } keys %form);
568: } else {
569: $request=new HTTP::Request('GET',"http://".$ENV{'HTTP_HOST'}.$fn);
570: }
571:
1.15 www 572: $request->header(Cookie => $ENV{'HTTP_COOKIE'});
573: my $response=$ua->request($request);
574:
575: return $response->content;
576: }
577:
1.14 www 578: # ------------------------------------------------------------------------- Log
579:
580: sub log {
581: my ($dom,$nam,$hom,$what)=@_;
1.47 www 582: return critical("log:$dom:$nam:$what",$hom);
1.14 www 583: }
584:
1.9 www 585: # ----------------------------------------------------------------------- Store
586:
587: sub store {
1.31 www 588: my %storehash=@_;
589: my $symb;
1.44 www 590: unless ($symb=escape(&symbread())) { return ''; }
1.31 www 591: my $namespace;
1.33 www 592: unless ($namespace=$ENV{'request.course.id'}) { return ''; }
1.12 www 593: my $namevalue='';
594: map {
595: $namevalue.=escape($_).'='.escape($storehash{$_}).'&';
596: } keys %storehash;
597: $namevalue=~s/\&$//;
1.31 www 598: return reply(
599: "store:$ENV{'user.domain'}:$ENV{'user.name'}:$namespace:$symb:$namevalue",
1.12 www 600: "$ENV{'user.home'}");
1.9 www 601: }
602:
1.47 www 603: # -------------------------------------------------------------- Critical Store
604:
605: sub cstore {
606: my %storehash=@_;
607: my $symb;
608: unless ($symb=escape(&symbread())) { return ''; }
609: my $namespace;
610: unless ($namespace=$ENV{'request.course.id'}) { return ''; }
611: my $namevalue='';
612: map {
613: $namevalue.=escape($_).'='.escape($storehash{$_}).'&';
614: } keys %storehash;
615: $namevalue=~s/\&$//;
616: return critical(
617: "store:$ENV{'user.domain'}:$ENV{'user.name'}:$namespace:$symb:$namevalue",
618: "$ENV{'user.home'}");
619: }
620:
1.9 www 621: # --------------------------------------------------------------------- Restore
622:
623: sub restore {
1.31 www 624: my $symb;
1.44 www 625: unless ($symb=escape(&symbread())) { return ''; }
1.31 www 626: my $namespace;
1.33 www 627: unless ($namespace=$ENV{'request.course.id'}) { return ''; }
1.31 www 628: my $answer=reply(
629: "restore:$ENV{'user.domain'}:$ENV{'user.name'}:$namespace:$symb",
630: "$ENV{'user.home'}");
1.12 www 631: my %returnhash=();
632: map {
633: my ($name,$value)=split(/\=/,$_);
634: $returnhash{&unescape($name)}=&unescape($value);
635: } split(/\&/,$answer);
1.75 www 636: my $version;
637: for ($version=1;$version<=$returnhash{'version'};$version++) {
638: map {
639: $returnhash{$_}=$returnhash{$version.':'.$_};
640: } split(/\:/,$returnhash{$version.':keys'});
641: }
1.13 www 642: return %returnhash;
1.34 www 643: }
644:
645: # ---------------------------------------------------------- Course Description
646:
647: sub coursedescription {
648: my $courseid=shift;
649: $courseid=~s/^\///;
1.49 www 650: $courseid=~s/\_/\//g;
1.34 www 651: my ($cdomain,$cnum)=split(/\//,$courseid);
652: my $chome=homeserver($cnum,$cdomain);
653: if ($chome ne 'no_host') {
654: my $rep=reply("dump:$cdomain:$cnum:environment",$chome);
655: if ($rep ne 'con_lost') {
1.54 www 656: my $normalid=$courseid;
657: $normalid=~s/\//\_/g;
1.53 www 658: my %envhash=();
1.34 www 659: my %returnhash=('home' => $chome,
660: 'domain' => $cdomain,
661: 'num' => $cnum);
662: map {
663: my ($name,$value)=split(/\=/,$_);
664: $name=&unescape($name);
665: $value=&unescape($value);
666: $returnhash{$name}=$value;
1.53 www 667: $envhash{'course.'.$normalid.'.'.$name}=$value;
1.34 www 668: } split(/\&/,$rep);
669: $returnhash{'url'}='/res/'.declutter($returnhash{'url'});
670: $returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'.
1.38 www 671: $ENV{'user.name'}.'_'.$cdomain.'_'.$cnum;
1.54 www 672: $envhash{'course.'.$normalid.'.last_cache'}=time;
1.60 www 673: $envhash{'course.'.$normalid.'.home'}=$chome;
674: $envhash{'course.'.$normalid.'.domain'}=$cdomain;
675: $envhash{'course.'.$normalid.'.num'}=$cnum;
1.53 www 676: &appenv(%envhash);
1.34 www 677: return %returnhash;
678: }
679: }
680: return ();
1.9 www 681: }
1.1 albertel 682:
1.11 www 683: # -------------------------------------------------------- Get user priviledges
684:
685: sub rolesinit {
686: my ($domain,$username,$authhost)=@_;
687: my $rolesdump=reply("dump:$domain:$username:roles",$authhost);
1.12 www 688: if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return ''; }
1.11 www 689: my %allroles=();
690: my %thesepriv=();
691: my $now=time;
1.21 www 692: my $userroles="user.login.time=$now\n";
1.11 www 693: my $thesestr;
694:
695: if ($rolesdump ne '') {
696: map {
1.21 www 697: if ($_!~/^rolesdef\&/) {
1.11 www 698: my ($area,$role)=split(/=/,$_);
1.21 www 699: $area=~s/\_\w\w$//;
1.11 www 700: my ($trole,$tend,$tstart)=split(/_/,$role);
1.21 www 701: $userroles.='user.role.'.$trole.'.'.$area.'='.
702: $tstart.'.'.$tend."\n";
1.11 www 703: if ($tend!=0) {
704: if ($tend<$now) {
705: $trole='';
706: }
707: }
708: if ($tstart!=0) {
709: if ($tstart>$now) {
710: $trole='';
711: }
712: }
713: if (($area ne '') && ($trole ne '')) {
1.50 www 714: my $spec=$trole.'.'.$area;
1.12 www 715: my ($tdummy,$tdomain,$trest)=split(/\//,$area);
716: if ($trole =~ /^cr\//) {
717: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
718: my $homsvr=homeserver($rauthor,$rdomain);
719: if ($hostname{$homsvr} ne '') {
720: my $roledef=
1.21 www 721: reply("get:$rdomain:$rauthor:roles:rolesdef_$rrole",
1.12 www 722: $homsvr);
723: if (($roledef ne 'con_lost') && ($roledef ne '')) {
724: my ($syspriv,$dompriv,$coursepriv)=
1.21 www 725: split(/\_/,unescape($roledef));
1.50 www 726: $allroles{'cm./'}.=':'.$syspriv;
727: $allroles{$spec.'./'}.=':'.$syspriv;
1.12 www 728: if ($tdomain ne '') {
1.50 www 729: $allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
730: $allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
1.12 www 731: if ($trest ne '') {
1.50 www 732: $allroles{'cm.'.$area}.=':'.$coursepriv;
733: $allroles{$spec.'.'.$area}.=':'.$coursepriv;
1.12 www 734: }
735: }
736: }
1.11 www 737: }
1.12 www 738: } else {
1.50 www 739: $allroles{'cm./'}.=':'.$pr{$trole.':s'};
740: $allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
1.12 www 741: if ($tdomain ne '') {
1.50 www 742: $allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
743: $allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
1.12 www 744: if ($trest ne '') {
1.50 www 745: $allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
746: $allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
1.12 www 747: }
748: }
1.11 www 749: }
1.12 www 750: }
751: }
1.11 www 752: } split(/&/,$rolesdump);
753: map {
754: %thesepriv=();
755: map {
756: if ($_ ne '') {
757: my ($priviledge,$restrictions)=split(/&/,$_);
758: if ($restrictions eq '') {
759: $thesepriv{$priviledge}='F';
760: } else {
761: if ($thesepriv{$priviledge} ne 'F') {
762: $thesepriv{$priviledge}.=$restrictions;
763: }
764: }
765: }
766: } split(/:/,$allroles{$_});
767: $thesestr='';
768: map { $thesestr.=':'.$_.'&'.$thesepriv{$_}; } keys %thesepriv;
769: $userroles.='user.priv.'.$_.'='.$thesestr."\n";
770: } keys %allroles;
771: }
772: return $userroles;
773: }
774:
1.12 www 775: # --------------------------------------------------------------- get interface
776:
777: sub get {
778: my ($namespace,@storearr)=@_;
779: my $items='';
780: map {
781: $items.=escape($_).'&';
782: } @storearr;
783: $items=~s/\&$//;
784: my $rep=reply("get:$ENV{'user.domain'}:$ENV{'user.name'}:$namespace:$items",
785: $ENV{'user.home'});
1.15 www 786: my @pairs=split(/\&/,$rep);
787: my %returnhash=();
1.42 www 788: my $i=0;
1.15 www 789: map {
1.42 www 790: $returnhash{$_}=unescape($pairs[$i]);
791: $i++;
792: } @storearr;
1.15 www 793: return %returnhash;
1.27 www 794: }
795:
796: # --------------------------------------------------------------- del interface
797:
798: sub del {
799: my ($namespace,@storearr)=@_;
800: my $items='';
801: map {
802: $items.=escape($_).'&';
803: } @storearr;
804: $items=~s/\&$//;
805: return reply("del:$ENV{'user.domain'}:$ENV{'user.name'}:$namespace:$items",
806: $ENV{'user.home'});
1.15 www 807: }
808:
809: # -------------------------------------------------------------- dump interface
810:
811: sub dump {
812: my $namespace=shift;
813: my $rep=reply("dump:$ENV{'user.domain'}:$ENV{'user.name'}:$namespace",
814: $ENV{'user.home'});
1.12 www 815: my @pairs=split(/\&/,$rep);
816: my %returnhash=();
817: map {
818: my ($key,$value)=split(/=/,$_);
1.29 www 819: $returnhash{unescape($key)}=unescape($value);
1.12 www 820: } @pairs;
821: return %returnhash;
822: }
823:
824: # --------------------------------------------------------------- put interface
825:
826: sub put {
827: my ($namespace,%storehash)=@_;
828: my $items='';
829: map {
830: $items.=escape($_).'='.escape($storehash{$_}).'&';
831: } keys %storehash;
832: $items=~s/\&$//;
833: return reply("put:$ENV{'user.domain'}:$ENV{'user.name'}:$namespace:$items",
1.47 www 834: $ENV{'user.home'});
835: }
836:
837: # ------------------------------------------------------ critical put interface
838:
839: sub cput {
840: my ($namespace,%storehash)=@_;
841: my $items='';
842: map {
843: $items.=escape($_).'='.escape($storehash{$_}).'&';
844: } keys %storehash;
845: $items=~s/\&$//;
846: return critical
847: ("put:$ENV{'user.domain'}:$ENV{'user.name'}:$namespace:$items",
1.12 www 848: $ENV{'user.home'});
849: }
850:
851: # -------------------------------------------------------------- eget interface
852:
853: sub eget {
854: my ($namespace,@storearr)=@_;
855: my $items='';
856: map {
857: $items.=escape($_).'&';
858: } @storearr;
859: $items=~s/\&$//;
860: my $rep=reply("eget:$ENV{'user.domain'}:$ENV{'user.name'}:$namespace:$items",
861: $ENV{'user.home'});
862: my @pairs=split(/\&/,$rep);
863: my %returnhash=();
1.42 www 864: my $i=0;
1.12 www 865: map {
1.42 www 866: $returnhash{$_}=unescape($pairs[$i]);
867: $i++;
868: } @storearr;
1.12 www 869: return %returnhash;
870: }
871:
872: # ------------------------------------------------- Check for a user priviledge
873:
874: sub allowed {
875: my ($priv,$uri)=@_;
1.52 www 876: $uri=&declutter($uri);
1.29 www 877:
1.54 www 878: # Free bre access to adm and meta resources
1.29 www 879:
1.54 www 880: if ((($uri=~/^adm\//) || ($uri=~/\.meta$/)) && ($priv eq 'bre')) {
1.14 www 881: return 'F';
882: }
1.29 www 883:
1.52 www 884: my $thisallowed='';
885: my $statecond=0;
886: my $courseprivid='';
887:
888: # Course
889:
890: if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'}=~/$priv\&([^\:]*)/) {
891: $thisallowed.=$1;
892: }
1.29 www 893:
1.52 www 894: # Domain
895:
896: if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'.(split(/\//,$uri))[0].'/'}
897: =~/$priv\&([^\:]*)/) {
1.12 www 898: $thisallowed.=$1;
899: }
1.52 www 900:
901: # Course: uri itself is a course
1.66 www 902: my $courseuri=$uri;
903: $courseuri=~s/\_(\d)/\/$1/;
904: if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'.$courseuri}
1.52 www 905: =~/$priv\&([^\:]*)/) {
1.12 www 906: $thisallowed.=$1;
907: }
1.29 www 908:
1.52 www 909: # Full access at system, domain or course-wide level? Exit.
1.29 www 910:
911: if ($thisallowed=~/F/) {
912: return 'F';
913: }
914:
1.52 www 915: # If this is generating or modifying users, exit with special codes
1.29 www 916:
1.52 www 917: if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:'=~/\:$priv\:/) {
918: return $thisallowed;
919: }
920: #
921: # Gathered so far: system, domain and course wide priviledges
922: #
923: # Course: See if uri or referer is an individual resource that is part of
924: # the course
925:
926: if ($ENV{'request.course.id'}) {
927: $courseprivid=$ENV{'request.course.id'};
928: if ($ENV{'request.course.sec'}) {
929: $courseprivid.='/'.$ENV{'request.course.sec'};
930: }
931: $courseprivid=~s/\_/\//;
932: my $checkreferer=1;
933: my @uriparts=split(/\//,$uri);
934: my $filename=$uriparts[$#uriparts];
935: my $pathname=$uri;
936: $pathname=~s/\/$filename$//;
937: if ($ENV{'acc.res.'.$ENV{'request.course.id'}.'.'.$pathname}=~
1.54 www 938: /\&$filename\:([\d\|]+)\&/) {
1.52 www 939: $statecond=$1;
940: if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'.$courseprivid}
941: =~/$priv\&([^\:]*)/) {
942: $thisallowed.=$1;
943: $checkreferer=0;
944: }
1.29 www 945: }
1.55 www 946:
1.52 www 947: if (($ENV{'HTTP_REFERER'}) && ($checkreferer)) {
1.55 www 948: my $refuri=$ENV{'HTTP_REFERER'};
949: $refuri=~s/^http\:\/\/$ENV{'request.host'}//i;
950: $refuri=&declutter($refuri);
1.53 www 951: my @uriparts=split(/\//,$refuri);
1.52 www 952: my $filename=$uriparts[$#uriparts];
1.53 www 953: my $pathname=$refuri;
1.52 www 954: $pathname=~s/\/$filename$//;
1.55 www 955: my @filenameparts=split(/\./,$uri);
1.53 www 956: if (&fileembstyle($filenameparts[$#filenameparts]) ne 'ssi') {
957: if ($ENV{'acc.res.'.$ENV{'request.course.id'}.'.'.$pathname}=~
1.54 www 958: /\&$filename\:([\d\|]+)\&/) {
1.53 www 959: my $refstatecond=$1;
1.52 www 960: if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'.$courseprivid}
961: =~/$priv\&([^\:]*)/) {
962: $thisallowed.=$1;
1.53 www 963: $uri=$refuri;
964: $statecond=$refstatecond;
1.52 www 965: }
1.53 www 966: }
1.52 www 967: }
1.29 www 968: }
1.52 www 969: }
1.29 www 970:
1.52 www 971: #
972: # Gathered now: all priviledges that could apply, and condition number
973: #
974: #
975: # Full or no access?
976: #
1.29 www 977:
1.52 www 978: if ($thisallowed=~/F/) {
979: return 'F';
980: }
1.29 www 981:
1.52 www 982: unless ($thisallowed) {
983: return '';
984: }
1.29 www 985:
1.52 www 986: # Restrictions exist, deal with them
987: #
988: # C:according to course preferences
989: # R:according to resource settings
990: # L:unless locked
991: # X:according to user session state
992: #
993:
994: # Possibly locked functionality, check all courses
1.54 www 995: # Locks might take effect only after 10 minutes cache expiration for other
996: # courses, and 2 minutes for current course
1.52 www 997:
998: my $envkey;
999: if ($thisallowed=~/L/) {
1000: foreach $envkey (keys %ENV) {
1.54 www 1001: if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) {
1002: my $courseid=$2;
1003: my $roleid=$1.'.'.$2;
1004: my $expiretime=600;
1005: if ($ENV{'request.role'} eq $roleid) {
1006: $expiretime=120;
1007: }
1008: my ($cdom,$cnum,$csec)=split(/\//,$courseid);
1009: my $prefix='course.'.$cdom.'_'.$cnum.'.';
1010: if ((time-$ENV{$prefix.'last_cache'})>$expiretime) {
1011: &coursedescription($courseid);
1012: }
1013: if (($ENV{$prefix.'res.'.$uri.'.lock.sections'}=~/\,$csec\,/)
1014: || ($ENV{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) {
1015: if ($ENV{$prefix.'res.'.$uri.'.lock.expire'}>time) {
1.57 www 1016: &log($ENV{'user.domain'},$ENV{'user.name'},
1017: $ENV{'user.host'},
1018: 'Locked by res: '.$priv.' for '.$uri.' due to '.
1.52 www 1019: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.54 www 1020: $ENV{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 1021: return '';
1022: }
1023: }
1.54 www 1024: if (($ENV{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,$csec\,/)
1025: || ($ENV{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
1026: if ($ENV{'priv.'.$priv.'.lock.expire'}>time) {
1.57 www 1027: &log($ENV{'user.domain'},$ENV{'user.name'},
1028: $ENV{'user.host'},
1029: 'Locked by priv: '.$priv.' for '.$uri.' due to '.
1.52 www 1030: $cdom.'/'.$cnum.'/'.$csec.' expire '.
1.54 www 1031: $ENV{$prefix.'priv.'.$priv.'.lock.expire'});
1.52 www 1032: return '';
1033: }
1034: }
1035: }
1.29 www 1036: }
1.52 www 1037: }
1038:
1039: #
1040: # Rest of the restrictions depend on selected course
1041: #
1042:
1043: unless ($ENV{'request.course.id'}) {
1044: return '1';
1045: }
1.29 www 1046:
1.52 www 1047: #
1048: # Now user is definitely in a course
1049: #
1.53 www 1050:
1051:
1052: # Course preferences
1053:
1054: if ($thisallowed=~/C/) {
1.54 www 1055: my $rolecode=(split(/\./,$ENV{'request.role'}))[0];
1056: if ($ENV{'course.'.$ENV{'request.course.id'}.'.'.$priv.'.roles.denied'}
1057: =~/\,$rolecode\,/) {
1.57 www 1058: &log($ENV{'user.domain'},$ENV{'user.name'},$ENV{'user.host'},
1059: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
1.54 www 1060: $ENV{'request.course.id'});
1061: return '';
1062: }
1.53 www 1063: }
1064:
1065: # Resource preferences
1066:
1067: if ($thisallowed=~/R/) {
1.54 www 1068: my $rolecode=(split(/\./,$ENV{'request.role'}))[0];
1069: my $filename=$perlvar{'lonDocRoot'}.'/res/'.$uri.'.meta';
1070: if (-e $filename) {
1071: my @content;
1072: {
1073: my $fh=Apache::File->new($filename);
1074: @content=<$fh>;
1075: }
1076: if (join('',@content)=~
1077: /\<roledeny[^\>]*\>[^\<]*$rolecode[^\<]*\<\/roledeny\>/) {
1.57 www 1078: &log($ENV{'user.domain'},$ENV{'user.name'},$ENV{'user.host'},
1079: 'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode);
1.54 www 1080: return '';
1081:
1082: }
1083: }
1.53 www 1084: }
1.30 www 1085:
1.52 www 1086: # Restricted by state?
1.30 www 1087:
1.52 www 1088: if ($thisallowed=~/X/) {
1089: if (&condval($statecond)) {
1090: return '2';
1091: } else {
1092: return '';
1093: }
1094: }
1.30 www 1095:
1.52 www 1096: return 'F';
1.12 www 1097: }
1098:
1099: # ----------------------------------------------------------------- Define Role
1100:
1101: sub definerole {
1102: if (allowed('mcr','/')) {
1103: my ($rolename,$sysrole,$domrole,$courole)=@_;
1.21 www 1104: map {
1105: my ($crole,$cqual)=split(/\&/,$_);
1106: if ($pr{'cr:s'}!~/$crole/) { return "refused:s:$crole"; }
1107: if ($pr{'cr:s'}=~/$crole\&/) {
1108: if ($pr{'cr:s'}!~/$crole\&\w*$cqual/) {
1109: return "refused:s:$crole&$cqual";
1110: }
1111: }
1112: } split('/',$sysrole);
1113: map {
1114: my ($crole,$cqual)=split(/\&/,$_);
1115: if ($pr{'cr:d'}!~/$crole/) { return "refused:d:$crole"; }
1116: if ($pr{'cr:d'}=~/$crole\&/) {
1117: if ($pr{'cr:d'}!~/$crole\&\w*$cqual/) {
1118: return "refused:d:$crole&$cqual";
1119: }
1120: }
1121: } split('/',$domrole);
1122: map {
1123: my ($crole,$cqual)=split(/\&/,$_);
1124: if ($pr{'cr:c'}!~/$crole/) { return "refused:c:$crole"; }
1125: if ($pr{'cr:c'}=~/$crole\&/) {
1126: if ($pr{'cr:c'}!~/$crole\&\w*$cqual/) {
1127: return "refused:c:$crole&$cqual";
1128: }
1129: }
1130: } split('/',$courole);
1.12 www 1131: my $command="encrypt:rolesput:$ENV{'user.domain'}:$ENV{'user.name'}:".
1132: "$ENV{'user.domain'}:$ENV{'user.name'}:".
1.21 www 1133: "rolesdef_$rolename=".
1134: escape($sysrole.'_'.$domrole.'_'.$courole);
1.12 www 1135: return reply($command,$ENV{'user.home'});
1136: } else {
1137: return 'refused';
1138: }
1139: }
1140:
1141: # ------------------------------------------------------------------ Plain Text
1142:
1143: sub plaintext {
1.22 www 1144: my $short=shift;
1145: return $prp{$short};
1.12 www 1146: }
1147:
1.25 www 1148: # ------------------------------------------------------------------ Plain Text
1149:
1150: sub fileembstyle {
1151: my $ending=shift;
1152: return $fe{$ending};
1153: }
1154:
1155: # ------------------------------------------------------------ Description Text
1156:
1.74 www 1157: sub filedescription {
1.25 www 1158: my $ending=shift;
1159: return $fd{$ending};
1160: }
1161:
1.12 www 1162: # ----------------------------------------------------------------- Assign Role
1163:
1164: sub assignrole {
1.21 www 1165: my ($udom,$uname,$url,$role,$end,$start)=@_;
1166: my $mrole;
1.31 www 1167: $url=declutter($url);
1.21 www 1168: if ($role =~ /^cr\//) {
1169: unless ($url=~/\.course$/) { return 'invalid'; }
1170: unless (allowed('ccr',$url)) { return 'refused'; }
1171: $mrole='cr';
1172: } else {
1173: unless (($url=~/\.course$/) || ($url=~/\/$/)) { return 'invalid'; }
1174: unless (allowed('c'+$role)) { return 'refused'; }
1175: $mrole=$role;
1176: }
1177: my $command="encrypt:rolesput:$ENV{'user.domain'}:$ENV{'user.name'}:".
1178: "$udom:$uname:$url".'_'."$mrole=$role";
1179: if ($end) { $command.='_$end'; }
1180: if ($start) {
1181: if ($end) {
1182: $command.='_$start';
1183: } else {
1184: $command.='_0_$start';
1185: }
1186: }
1187: return &reply($command,&homeserver($uname,$udom));
1.80 ! www 1188: }
! 1189:
! 1190: # ----------------------------------------------------------------- Make a user
! 1191:
! 1192:
! 1193: sub makeuser {
! 1194: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene)=@_;
! 1195: &logthis('Call to make user '.$udom.', '.$uname.', '.$uid.', '.
! 1196: $umode.', '.$first.', '.$middle.', '.
! 1197: $last.', '.$gene.' by '.
! 1198: $ENV{'user.name'}.' at '.$ENV{'user.domain'});
! 1199: my $uhome=&homeserver($uname,$udom);
! 1200: # ----------------------------------------------------------------- Create User
! 1201: if ($uhome eq 'no_host') {
! 1202: my $unhome='';
! 1203: if ($ENV{'course.'.$ENV{'request.course.id'}.'.domain'} eq $udom) {
! 1204: $unhome=$ENV{'course.'.$ENV{'request.course.id'}.'.home'};
! 1205: } elsif ($ENV{'user.domain'} eq $udom) {
! 1206: $unhome=$ENV{'user.home'};
! 1207: } else {
! 1208: my $tryserver;
! 1209: my $loadm=999999;
! 1210: foreach $tryserver (keys %libserv) {
! 1211: if ($hostdom{$tryserver} eq $udom) {
! 1212: my $answer=reply('load',$tryserver);
! 1213: if (($answer=~/\d+/) && ($answer<$loadm)) {
! 1214: $loadm=$answer;
! 1215: $unhome=$tryserver;
! 1216: }
! 1217: }
! 1218: }
! 1219: }
! 1220: if (($unhome eq '') || ($unhome eq 'no_host')) {
! 1221: return 'error: find home';
! 1222: }
! 1223: my $reply=&reply('encrypt:makeuser:'.$udom.':'.$uname.':'.$umode.':'.
! 1224: &escape($upass),$unhome);
! 1225: unless ($reply eq 'ok') {
! 1226: return 'error: '.$reply;
! 1227: }
! 1228: $uhome=&homeserver($uname,$udom);
! 1229: if (($uhome eq '') || ($uhome eq 'no_host') || ($uhome ne $unhome)) {
! 1230: return 'error: verify home';
! 1231: }
! 1232: }
! 1233: # ---------------------------------------------------------------------- Add ID
! 1234: if ($uid) {
! 1235: $uid=~tr/A-Z/a-z/;
! 1236: my %uidhash=&idrget($udom,$uname);
! 1237: if (($uidhash{$uname}) && ($uidhash{$uname}!~/error\:/)) {
! 1238: unless ($uid eq $uidhash{$uname}) {
! 1239: return 'error: mismatch '.$uidhash{$uname}.' versus '.$uid;
! 1240: }
! 1241: } else {
! 1242: &idput($udom,($uname => $uid));
! 1243: }
! 1244: }
! 1245: # -------------------------------------------------------------- Add names, etc
! 1246: my $names=&reply('get:'.$udom.':'.$uname.
! 1247: ':environment:firstname&middlename&lastname&generation',
! 1248: $uhome);
! 1249: my ($efirst,$emiddle,$elast,$egene)=split(/\&/,$names);
! 1250: unless ($efirst) { $efirst = &escape($first); }
! 1251: unless ($emiddle) { $emiddle = &escape($middle); }
! 1252: unless ($elast) { $elast = &escape($last); }
! 1253: unless ($egene) { $egene = &escape($gene); }
! 1254: my $reply=&reply('put:'.$udom.':'.$uname.
! 1255: ':environment:firstname='.$efirst.
! 1256: '&middlename='.$emiddle.
! 1257: '&lastname='.$elast.
! 1258: '&generation='.$egene,$uhome);
! 1259: if ($reply ne 'ok') {
! 1260: return 'error: '.$reply;
! 1261: }
! 1262: &logthis('Success making user '.$udom.', '.$uname.', '.$uid.', '.
! 1263: $umode.', '.$first.', '.$middle.', '.
! 1264: $last.', '.$gene.' by '.
! 1265: $ENV{'user.name'}.' at '.$ENV{'user.domain'});
! 1266: return 'ok';
! 1267: }
! 1268:
! 1269: # -------------------------------------------------------------- Make a student
! 1270:
! 1271: sub makestudent {
! 1272: my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec)=@_;
! 1273: unless ($ENV{'request.course.id'}) {
! 1274: return 'not_in_class';
! 1275: }
! 1276: # --------------------------------------------------------------- Make the user
! 1277: my $reply=&makeuser
! 1278: ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene);
! 1279: unless ($reply eq 'ok') { return $reply; }
! 1280: # -------------------------------------------------- Add student to course list
! 1281:
! 1282: # ---------------------------------------------------- Add student role to user
! 1283:
1.21 www 1284: }
1285:
1286: # ---------------------------------------------------------- Assign Custom Role
1287:
1288: sub assigncustomrole {
1289: my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start)=@_;
1290: return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
1291: $end,$start);
1292: }
1293:
1294: # ----------------------------------------------------------------- Revoke Role
1295:
1296: sub revokerole {
1297: my ($udom,$uname,$url,$role)=@_;
1298: my $now=time;
1299: return &assignrole($udom,$uname,$url,$role,$now);
1300: }
1301:
1302: # ---------------------------------------------------------- Revoke Custom Role
1303:
1304: sub revokecustomrole {
1305: my ($udom,$uname,$url,$rdom,$rnam,$rolename)=@_;
1306: my $now=time;
1307: return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now);
1.17 www 1308: }
1309:
1310: # ------------------------------------------------------------ Directory lister
1311:
1312: sub dirlist {
1313: my $uri=shift;
1.18 www 1314: $uri=~s/^\///;
1315: $uri=~s/\/$//;
1.19 www 1316: my ($res,$udom,$uname,@rest)=split(/\//,$uri);
1317: if ($udom) {
1318: if ($uname) {
1319: my $listing=reply('ls:'.$perlvar{'lonDocRoot'}.'/'.$uri,
1320: homeserver($uname,$udom));
1321: return split(/:/,$listing);
1322: } else {
1323: my $tryserver;
1324: my %allusers=();
1325: foreach $tryserver (keys %libserv) {
1326: if ($hostdom{$tryserver} eq $udom) {
1327: my $listing=reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.$udom,
1328: $tryserver);
1329: if (($listing ne 'no_such_dir') && ($listing ne 'empty')
1330: && ($listing ne 'con_lost')) {
1331: map {
1332: my ($entry,@stat)=split(/&/,$_);
1333: $allusers{$entry}=1;
1334: } split(/:/,$listing);
1335: }
1336: }
1337: }
1338: my $alluserstr='';
1339: map {
1340: $alluserstr.=$_.'&user:';
1341: } sort keys %allusers;
1342: $alluserstr=~s/:$//;
1343: return split(/:/,$alluserstr);
1344: }
1345: } else {
1346: my $tryserver;
1347: my %alldom=();
1348: foreach $tryserver (keys %libserv) {
1349: $alldom{$hostdom{$tryserver}}=1;
1350: }
1351: my $alldomstr='';
1352: map {
1353: $alldomstr.=$perlvar{'lonDocRoot'}.'/res/'.$_.'&domain:';
1354: } sort keys %alldom;
1355: $alldomstr=~s/:$//;
1356: return split(/:/,$alldomstr);
1357: }
1.26 www 1358: }
1359:
1360: # -------------------------------------------------------- Value of a Condition
1361:
1.40 www 1362: sub directcondval {
1363: my $number=shift;
1364: if ($ENV{'user.state.'.$ENV{'request.course.id'}}) {
1365: return substr($ENV{'user.state.'.$ENV{'request.course.id'}},$number,1);
1366: } else {
1367: return 2;
1368: }
1369: }
1370:
1.26 www 1371: sub condval {
1372: my $condidx=shift;
1373: my $result=0;
1.54 www 1374: my $allpathcond='';
1375: map {
1376: if (defined($ENV{'acc.cond.'.$ENV{'request.course.id'}.'.'.$_})) {
1377: $allpathcond.=
1378: '('.$ENV{'acc.cond.'.$ENV{'request.course.id'}.'.'.$_}.')|';
1379: }
1380: } split(/\|/,$condidx);
1381: $allpathcond=~s/\|$//;
1.33 www 1382: if ($ENV{'request.course.id'}) {
1.54 www 1383: if ($allpathcond) {
1.26 www 1384: my $operand='|';
1385: my @stack;
1386: map {
1387: if ($_ eq '(') {
1388: push @stack,($operand,$result)
1389: } elsif ($_ eq ')') {
1390: my $before=pop @stack;
1391: if (pop @stack eq '&') {
1392: $result=$result>$before?$before:$result;
1393: } else {
1394: $result=$result>$before?$result:$before;
1395: }
1396: } elsif (($_ eq '&') || ($_ eq '|')) {
1397: $operand=$_;
1398: } else {
1.40 www 1399: my $new=directcondval($_);
1.26 www 1400: if ($operand eq '&') {
1401: $result=$result>$new?$new:$result;
1402: } else {
1403: $result=$result>$new?$result:$new;
1404: }
1405: }
1.54 www 1406: } ($allpathcond=~/(\d+|\(|\)|\&|\|)/g);
1.26 www 1407: }
1408: }
1409: return $result;
1.28 www 1410: }
1411:
1412: # --------------------------------------------------------- Value of a Variable
1413:
1.58 www 1414: sub EXT {
1.48 www 1415: my $varname=shift;
1.68 www 1416: unless ($varname) { return ''; }
1.48 www 1417: my ($realm,$space,$qualifier,@therest)=split(/\./,$varname);
1418: my $rest;
1419: if ($therest[0]) {
1420: $rest=join('.',@therest);
1421: } else {
1422: $rest='';
1423: }
1.57 www 1424: my $qualifierrest=$qualifier;
1425: if ($rest) { $qualifierrest.='.'.$rest; }
1426: my $spacequalifierrest=$space;
1427: if ($qualifierrest) { $spacequalifierrest.='.'.$qualifierrest; }
1.28 www 1428: if ($realm eq 'user') {
1.48 www 1429: # --------------------------------------------------------------- user.resource
1430: if ($space eq 'resource') {
1.57 www 1431: my %restored=&restore;
1432: return $restored{$qualifierrest};
1.48 www 1433: # ----------------------------------------------------------------- user.access
1434: } elsif ($space eq 'access') {
1435: return &allowed($qualifier,$rest);
1436: # ------------------------------------------ user.preferences, user.environment
1437: } elsif (($space eq 'preferences') || ($space eq 'environment')) {
1.57 www 1438: return $ENV{join('.',('environment',$qualifierrest))};
1.48 www 1439: # ----------------------------------------------------------------- user.course
1440: } elsif ($space eq 'course') {
1441: return $ENV{join('.',('request.course',$qualifier))};
1442: # ------------------------------------------------------------------- user.role
1443: } elsif ($space eq 'role') {
1444: my ($role,$where)=split(/\./,$ENV{'request.role'});
1445: if ($qualifier eq 'value') {
1446: return $role;
1447: } elsif ($qualifier eq 'extent') {
1448: return $where;
1449: }
1450: # ----------------------------------------------------------------- user.domain
1451: } elsif ($space eq 'domain') {
1452: return $ENV{'user.domain'};
1453: # ------------------------------------------------------------------- user.name
1454: } elsif ($space eq 'name') {
1455: return $ENV{'user.name'};
1456: # ---------------------------------------------------- Any other user namespace
1.29 www 1457: } else {
1.48 www 1458: my $item=($rest)?$qualifier.'.'.$rest:$qualifier;
1459: my %reply=&get($space,$item);
1460: return $reply{$item};
1461: }
1462: } elsif ($realm eq 'request') {
1463: # ------------------------------------------------------------- request.browser
1464: if ($space eq 'browser') {
1465: return $ENV{'browser.'.$qualifier};
1.57 www 1466: # ------------------------------------------------------------ request.filename
1467: } else {
1468: return $ENV{'request.'.$spacequalifierrest};
1.29 www 1469: }
1.28 www 1470: } elsif ($realm eq 'course') {
1.48 www 1471: # ---------------------------------------------------------- course.description
1.57 www 1472: my $section='';
1473: if ($ENV{'request.course.sec'}) {
1474: $section='_'.$ENV{'request.course.sec'};
1.48 www 1475: }
1.57 www 1476: return $ENV{'course.'.$ENV{'request.course.id'}.$section.'.'.
1477: $spacequalifierrest};
1478: } elsif ($realm eq 'resource') {
1.60 www 1479: if ($ENV{'request.course.id'}) {
1480: # ----------------------------------------------------- Cascading lookup scheme
1.69 www 1481: my $symbp=&symbread();
1482: my $mapp=(split(/\_\_\_/,$symbp))[0];
1483:
1484: my $symbparm=$symbp.'.'.$spacequalifierrest;
1485: my $mapparm=$mapp.'___(all).'.$spacequalifierrest;
1486:
1.60 www 1487: my $seclevel=
1.69 www 1488: $ENV{'request.course.id'}.'.['.
1489: $ENV{'request.course.sec'}.'].'.$spacequalifierrest;
1490: my $seclevelr=
1491: $ENV{'request.course.id'}.'.['.
1492: $ENV{'request.course.sec'}.'].'.$symbparm;
1493: my $seclevelm=
1494: $ENV{'request.course.id'}.'.['.
1495: $ENV{'request.course.sec'}.'].'.$mapparm;
1496:
1.60 www 1497: my $courselevel=
1498: $ENV{'request.course.id'}.'.'.$spacequalifierrest;
1.69 www 1499: my $courselevelr=
1500: $ENV{'request.course.id'}.'.'.$symbparm;
1501: my $courselevelm=
1502: $ENV{'request.course.id'}.'.'.$mapparm;
1503:
1.60 www 1504:
1505: # ----------------------------------------------------------- first, check user
1.69 www 1506: my %resourcedata=get('resourcedata',
1507: ($courselevelr,$courselevelm,$courselevel));
1508: if ($resourcedata{$courselevelr}!~/^error\:/) {
1509:
1510: if ($resourcedata{$courselevelr}) {
1511: return $resourcedata{$courselevelr}; }
1512: if ($resourcedata{$courselevelm}) {
1513: return $resourcedata{$courselevelm}; }
1.60 www 1514: if ($resourcedata{$courselevel}) { return $resourcedata{$courselevel}; }
1.69 www 1515:
1.63 www 1516: }
1.60 www 1517: # -------------------------------------------------------- second, check course
1518: my $section='';
1519: if ($ENV{'request.course.sec'}) {
1520: $section='_'.$ENV{'request.course.sec'};
1521: }
1522: my $reply=&reply('get:'.
1523: $ENV{'course.'.$ENV{'request.course.id'}.$section.'.domain'}.':'.
1524: $ENV{'course.'.$ENV{'request.course.id'}.$section.'.num'}.
1.79 www 1525: ':resourcedata:'.
1526: &escape($seclevelr).'&'.&escape($seclevelm).'&'.&escape($seclevel).'&'.
1527: &escape($courselevelr).'&'.&escape($courselevelm).'&'.&escape($courselevel),
1.60 www 1528: $ENV{'course.'.$ENV{'request.course.id'}.$section.'.home'});
1.63 www 1529: if ($reply!~/^error\:/) {
1.79 www 1530: map {
1531: if ($_) { return &unescape($_); }
1532: } split(/\&/,$reply);
1.63 www 1533: }
1.60 www 1534:
1535: # ------------------------------------------------------ third, check map parms
1.65 www 1536: my %parmhash=();
1537: my $thisparm='';
1538: if (tie(%parmhash,'GDBM_File',
1539: $ENV{'request.course.fn'}.'_parms.db',&GDBM_READER,0640)) {
1540: $thisparm=$parmhash{$symbparm};
1541: untie(%parmhash);
1.60 www 1542: }
1.65 www 1543: if ($thisparm) { return $thisparm; }
1.60 www 1544: }
1545:
1546: # --------------------------------------------- last, look in resource metadata
1.71 www 1547:
1.78 www 1548: $spacequalifierrest=~s/\./\_/;
1.71 www 1549: my $metadata=&metadata($ENV{'request.filename'},$spacequalifierrest);
1550: if ($metadata) { return $metadata; }
1.78 www 1551: $metadata=&metadata($ENV{'request.filename'},
1552: 'parameter_'.$spacequalifierrest);
1553: if ($metadata) { return $metadata; }
1.71 www 1554:
1.48 www 1555: # ---------------------------------------------------- Any other user namespace
1556: } elsif ($realm eq 'environment') {
1557: # ----------------------------------------------------------------- environment
1.57 www 1558: return $ENV{$spacequalifierrest};
1.28 www 1559: } elsif ($realm eq 'system') {
1.48 www 1560: # ----------------------------------------------------------------- system.time
1561: if ($space eq 'time') {
1562: return time;
1563: }
1.28 www 1564: }
1.48 www 1565: return '';
1.61 www 1566: }
1567:
1.71 www 1568: # ---------------------------------------------------------------- Get metadata
1569:
1570: sub metadata {
1571: my ($uri,$what)=@_;
1.78 www 1572:
1.71 www 1573: $uri=&declutter($uri);
1.73 www 1574: my $filename=$uri;
1575: $uri=~s/\.meta$//;
1.71 www 1576: unless ($metacache{$uri.':keys'}) {
1.73 www 1577: unless ($filename=~/\.meta$/) { $filename.='.meta'; }
1578: my $metastring=&getfile($perlvar{'lonDocRoot'}.'/res/'.$filename);
1.71 www 1579: my $parser=HTML::TokeParser->new(\$metastring);
1580: my $token;
1581: while ($token=$parser->get_token) {
1582: if ($token->[0] eq 'S') {
1583: my $entry=$token->[1];
1584: my $unikey=$entry;
1.72 www 1585: if (defined($token->[2]->{'part'})) {
1.71 www 1586: $unikey.='_'.$token->[2]->{'part'};
1587: }
1.72 www 1588: if (defined($token->[2]->{'name'})) {
1.71 www 1589: $unikey.='_'.$token->[2]->{'name'};
1590: }
1591: if ($metacache{$uri.':keys'}) {
1592: $metacache{$uri.':keys'}.=','.$unikey;
1593: } else {
1594: $metacache{$uri.':keys'}=$unikey;
1595: }
1596: map {
1597: $metacache{$uri.':'.$unikey.'.'.$_}=$token->[2]->{$_};
1.72 www 1598: } @{$token->[3]};
1.78 www 1599: unless (
1600: $metacache{$uri.':'.$unikey}=$parser->get_text('/'.$entry)
1601: ) { $metacache{$uri.':'.$unikey}=
1602: $metacache{$uri.':'.$unikey.'.default'};
1603: }
1.71 www 1604: }
1605: }
1606: }
1607: return $metacache{$uri.':'.$what};
1608: }
1609:
1.31 www 1610: # ------------------------------------------------- Update symbolic store links
1611:
1612: sub symblist {
1613: my ($mapname,%newhash)=@_;
1614: $mapname=declutter($mapname);
1615: my %hash;
1616: if (($ENV{'request.course.fn'}) && (%newhash)) {
1617: if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'_symb.db',
1618: &GDBM_WRCREAT,0640)) {
1619: map {
1620: $hash{declutter($_)}=$mapname.'___'.$newhash{$_};
1621: } keys %newhash;
1622: if (untie(%hash)) {
1623: return 'ok';
1624: }
1625: }
1626: }
1627: return 'error';
1628: }
1629:
1630: # ------------------------------------------------------ Return symb list entry
1631:
1632: sub symbread {
1.44 www 1633: my $thisfn=shift;
1634: unless ($thisfn) {
1635: $thisfn=$ENV{'request.filename'};
1636: }
1637: $thisfn=declutter($thisfn);
1.31 www 1638: my %hash;
1.37 www 1639: my %bighash;
1640: my $syval='';
1.45 www 1641: if (($ENV{'request.course.fn'}) && ($thisfn)) {
1.31 www 1642: if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'_symb.db',
1643: &GDBM_READER,0640)) {
1644: $syval=$hash{$thisfn};
1.37 www 1645: untie(%hash);
1646: }
1647: # ---------------------------------------------------------- There was an entry
1648: if ($syval) {
1649: unless ($syval=~/\_\d+$/) {
1650: unless ($ENV{'form.request.prefix'}=~/\.(\d+)\_$/) {
1.44 www 1651: &appenv('request.ambiguous' => $thisfn);
1.37 www 1652: return '';
1653: }
1654: $syval.=$1;
1655: }
1656: } else {
1657: # ------------------------------------------------------- Was not in symb table
1658: if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
1659: &GDBM_READER,0640)) {
1660: # ---------------------------------------------- Get ID(s) for current resource
1661: my $ids=$bighash{'ids_/res/'.$thisfn};
1.65 www 1662: unless ($ids) {
1663: $ids=$bighash{'ids_/'.$thisfn};
1664: }
1.37 www 1665: if ($ids) {
1666: # ------------------------------------------------------------------- Has ID(s)
1667: my @possibilities=split(/\,/,$ids);
1.39 www 1668: if ($#possibilities==0) {
1669: # ----------------------------------------------- There is only one possibility
1.37 www 1670: my ($mapid,$resid)=split(/\./,$ids);
1671: $syval=declutter($bighash{'map_id_'.$mapid}).'___'.$resid;
1672: } else {
1.39 www 1673: # ------------------------------------------ There is more than one possibility
1674: my $realpossible=0;
1675: map {
1676: my $file=$bighash{'src_'.$_};
1677: if (&allowed('bre',$file)) {
1678: my ($mapid,$resid)=split(/\./,$_);
1679: if ($bighash{'map_type_'.$mapid} ne 'page') {
1680: $realpossible++;
1681: $syval=declutter($bighash{'map_id_'.$mapid}).
1682: '___'.$resid;
1683: }
1684: }
1685: } @possibilities;
1686: if ($realpossible!=1) { $syval=''; }
1.37 www 1687: }
1688: }
1689: untie(%bighash)
1690: }
1.31 www 1691: }
1.62 www 1692: if ($syval) {
1693: return $syval.'___'.$thisfn;
1694: }
1.31 www 1695: }
1.44 www 1696: &appenv('request.ambiguous' => $thisfn);
1.31 www 1697: return '';
1698: }
1699:
1700: # ---------------------------------------------------------- Return random seed
1701:
1.32 www 1702: sub numval {
1703: my $txt=shift;
1704: $txt=~tr/A-J/0-9/;
1705: $txt=~tr/a-j/0-9/;
1706: $txt=~tr/K-T/0-9/;
1707: $txt=~tr/k-t/0-9/;
1708: $txt=~tr/U-Z/0-5/;
1709: $txt=~tr/u-z/0-5/;
1710: $txt=~s/\D//g;
1711: return int($txt);
1712: }
1713:
1.31 www 1714: sub rndseed {
1715: my $symb;
1.44 www 1716: unless ($symb=&symbread()) { return time; }
1.32 www 1717: my $symbchck=unpack("%32C*",$symb);
1718: my $symbseed=numval($symb)%$symbchck;
1719: my $namechck=unpack("%32C*",$ENV{'user.name'});
1720: my $nameseed=numval($ENV{'user.name'})%$namechck;
1721: return int( $symbseed
1722: .$nameseed
1723: .unpack("%32C*",$ENV{'user.domain'})
1.33 www 1724: .unpack("%32C*",$ENV{'request.course.id'})
1.32 www 1725: .$namechck
1726: .$symbchck);
1.36 albertel 1727: }
1728:
1.76 www 1729: sub ireceipt {
1730: my ($funame,$fudom,$fucourseid,$fusymb)=@_;
1731: my $cuname=unpack("%32C*",$funame);
1732: my $cudom=unpack("%32C*",$fudom);
1733: my $cucourseid=unpack("%32C*",$fucourseid);
1734: my $cusymb=unpack("%32C*",$fusymb);
1.77 www 1735: my $cunique=unpack("%32C*",$perlvar{'lonReceipt'});
1.76 www 1736: return unpack("%32C*",$perlvar{'lonHostID'}).'-'.
1737: ($cunique%$cuname+
1738: $cunique%$cudom+
1739: $cusymb%$cuname+
1740: $cusymb%$cudom+
1741: $cucourseid%$cuname+
1742: $cucourseid%$cudom);
1743: }
1744:
1745: sub receipt {
1746: return &ireceipt($ENV{'user.name'},$ENV{'user.domain'},
1747: $ENV{'request.course.id'},&symbread());
1748: }
1749:
1.36 albertel 1750: # ------------------------------------------------------------ Serves up a file
1751: # returns either the contents of the file or a -1
1752: sub getfile {
1753: my $file=shift;
1.37 www 1754: &repcopy($file);
1.36 albertel 1755: if (! -e $file ) { return -1; };
1756: my $fh=Apache::File->new($file);
1757: my $a='';
1758: while (<$fh>) { $a .=$_; }
1759: return $a
1760: }
1761:
1762: sub filelocation {
1763: my ($dir,$file) = @_;
1764: my $location;
1765: $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
1.59 albertel 1766: if ($file=~m:^/~:) { # is a contruction space reference
1767: $location = $file;
1768: $location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:;
1.36 albertel 1769: } else {
1.59 albertel 1770: $file=~s/^$perlvar{'lonDocRoot'}//;
1771: $file=~s:^/*res::;
1772: if ( !( $file =~ m:^/:) ) {
1773: $location = $dir. '/'.$file;
1774: } else {
1775: $location = '/home/httpd/html/res'.$file;
1776: }
1.36 albertel 1777: }
1778: $location=~s://+:/:g; # remove duplicate /
1.46 www 1779: while ($location=~m:/\.\./:) {$location=~ s:/[^/]+/\.\./:/:g;} #remove dir/..
1780: return $location;
1781: }
1.36 albertel 1782:
1.46 www 1783: sub hreflocation {
1784: my ($dir,$file)=@_;
1785: unless (($_=~/^http:\/\//i) || ($_=~/^\//)) {
1786: my $finalpath=filelocation($dir,$file);
1787: $finalpath=~s/^\/home\/httpd\/html//;
1788: return $finalpath;
1789: } else {
1790: return $file;
1791: }
1.31 www 1792: }
1793:
1794: # ------------------------------------------------------------- Declutters URLs
1795:
1796: sub declutter {
1797: my $thisfn=shift;
1798: $thisfn=~s/^$perlvar{'lonDocRoot'}//;
1799: $thisfn=~s/^\///;
1800: $thisfn=~s/^res\///;
1801: return $thisfn;
1.12 www 1802: }
1803:
1804: # -------------------------------------------------------- Escape Special Chars
1805:
1806: sub escape {
1807: my $str=shift;
1808: $str =~ s/(\W)/"%".unpack('H2',$1)/eg;
1809: return $str;
1810: }
1811:
1812: # ----------------------------------------------------- Un-Escape Special Chars
1813:
1814: sub unescape {
1815: my $str=shift;
1816: $str =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1817: return $str;
1818: }
1.11 www 1819:
1.1 albertel 1820: # ================================================================ Main Program
1821:
1822: sub BEGIN {
1823: if ($readit ne 'done') {
1824: # ------------------------------------------------------------ Read access.conf
1825: {
1826: my $config=Apache::File->new("/etc/httpd/conf/access.conf");
1827:
1828: while (my $configline=<$config>) {
1829: if ($configline =~ /PerlSetVar/) {
1830: my ($dummy,$varname,$varvalue)=split(/\s+/,$configline);
1.8 www 1831: chomp($varvalue);
1.1 albertel 1832: $perlvar{$varname}=$varvalue;
1833: }
1834: }
1835: }
1836:
1837: # ------------------------------------------------------------- Read hosts file
1838: {
1839: my $config=Apache::File->new("$perlvar{'lonTabDir'}/hosts.tab");
1840:
1841: while (my $configline=<$config>) {
1842: my ($id,$domain,$role,$name,$ip)=split(/:/,$configline);
1843: $hostname{$id}=$name;
1844: $hostdom{$id}=$domain;
1845: if ($role eq 'library') { $libserv{$id}=$name; }
1846: }
1847: }
1848:
1849: # ------------------------------------------------------ Read spare server file
1850: {
1851: my $config=Apache::File->new("$perlvar{'lonTabDir'}/spare.tab");
1852:
1853: while (my $configline=<$config>) {
1854: chomp($configline);
1855: if (($configline) && ($configline ne $perlvar{'lonHostID'})) {
1856: $spareid{$configline}=1;
1857: }
1858: }
1859: }
1.11 www 1860: # ------------------------------------------------------------ Read permissions
1861: {
1862: my $config=Apache::File->new("$perlvar{'lonTabDir'}/roles.tab");
1863:
1864: while (my $configline=<$config>) {
1865: chomp($configline);
1866: my ($role,$perm)=split(/ /,$configline);
1867: if ($perm ne '') { $pr{$role}=$perm; }
1868: }
1869: }
1870:
1871: # -------------------------------------------- Read plain texts for permissions
1872: {
1873: my $config=Apache::File->new("$perlvar{'lonTabDir'}/rolesplain.tab");
1874:
1875: while (my $configline=<$config>) {
1876: chomp($configline);
1877: my ($short,$plain)=split(/:/,$configline);
1878: if ($plain ne '') { $prp{$short}=$plain; }
1.25 www 1879: }
1880: }
1881:
1882: # ------------------------------------------------------------- Read file types
1883: {
1884: my $config=Apache::File->new("$perlvar{'lonTabDir'}/filetypes.tab");
1885:
1886: while (my $configline=<$config>) {
1887: chomp($configline);
1888: my ($ending,$emb,@descr)=split(/\s+/,$configline);
1889: if ($descr[0] ne '') {
1890: $fe{$ending}=$emb;
1891: $fd{$ending}=join(' ',@descr);
1892: }
1.11 www 1893: }
1894: }
1895:
1.71 www 1896: %metacache=();
1.22 www 1897:
1.1 albertel 1898: $readit='done';
1.12 www 1899: &logthis('<font color=yellow>INFO: Read configuration</font>');
1.1 albertel 1900: }
1901: }
1902: 1;
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