1: # The LearningOnline Network with CAPA
2: # Publication Handler
3: #
4: # $Id: lonpublisher.pm,v 1.107 2002/11/06 22:36:08 albertel Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: #
29: # (TeX Content Handler
30: #
31: # 05/29/00,05/30,10/11 Gerd Kortemeyer)
32: #
33: # 11/28,11/29,11/30,12/01,12/02,12/04,12/23 Gerd Kortemeyer
34: # 03/23 Guy Albertelli
35: # 03/24,03/29,04/03 Gerd Kortemeyer
36: # 04/16/2001 Scott Harrison
37: # 05/03,05/05,05/07 Gerd Kortemeyer
38: # 05/28/2001 Scott Harrison
39: # 06/23,08/07,08/11,8/13,8/17,8/18,8/24,9/26,10/16 Gerd Kortemeyer
40: # 12/04,12/05 Guy Albertelli
41: # 12/05 Gerd Kortemeyer
42: # 12/05 Guy Albertelli
43: # 12/06,12/07 Gerd Kortemeyer
44: # 12/15,12/16 Scott Harrison
45: # 12/25 Gerd Kortemeyer
46: # YEAR=2002
47: # 1/16,1/17 Scott Harrison
48: # 1/17 Gerd Kortemeyer
49: #
50: ###
51:
52: ###############################################################################
53: ## ##
54: ## ORGANIZATION OF THIS PERL MODULE ##
55: ## ##
56: ## 1. Modules used by this module ##
57: ## 2. Various subroutines ##
58: ## 3. Publication Step One ##
59: ## 4. Phase Two ##
60: ## 5. Main Handler ##
61: ## ##
62: ###############################################################################
63:
64:
65: ######################################################################
66: ######################################################################
67:
68: =pod
69:
70: =head1 NAME
71:
72: lonpublisher - LON-CAPA publishing handler
73:
74: =head1 SYNOPSIS
75:
76: B<lonpublisher> is used by B<mod_perl> inside B<Apache>. This is the
77: invocation by F<loncapa_apache.conf>:
78:
79: <Location /adm/publish>
80: PerlAccessHandler Apache::lonacc
81: SetHandler perl-script
82: PerlHandler Apache::lonpublisher
83: ErrorDocument 403 /adm/login
84: ErrorDocument 404 /adm/notfound.html
85: ErrorDocument 406 /adm/unauthorized.html
86: ErrorDocument 500 /adm/errorhandler
87: </Location>
88:
89: =head1 DESCRIPTION
90:
91: B<lonpublisher> takes the proper steps to add resources to the LON-CAPA
92: digital library. This includes updating the metadata table in the
93: LON-CAPA database.
94:
95: B<lonpublisher> is many things to many people.
96:
97: This module publishes a file. This involves gathering metadata,
98: versioning the file, copying file from construction space to
99: publication space, and copying metadata from construction space
100: to publication space.
101:
102: =head2 SUBROUTINES
103:
104: Many of the undocumented subroutines implement various magical
105: parsing shortcuts.
106:
107: =over 4
108:
109: =cut
110:
111: ######################################################################
112: ######################################################################
113:
114:
115: package Apache::lonpublisher;
116:
117: # ------------------------------------------------- modules used by this module
118: use strict;
119: use Apache::File;
120: use File::Copy;
121: use Apache::Constants qw(:common :http :methods);
122: use HTML::LCParser;
123: use Apache::lonxml;
124: use Apache::lonhomework;
125: use Apache::loncacc;
126: use DBI;
127: use Apache::lonnet();
128: use Apache::loncommon();
129: use Apache::lonmysql;
130: use vars qw(%metadatafields %metadatakeys);
131:
132: my %addid;
133: my %nokey;
134:
135: my $docroot;
136:
137: my $cuname;
138: my $cudom;
139:
140: =pod
141:
142: =item B<metaeval>
143:
144: Evaluates a string that contains metadata. This subroutine
145: stores values inside I<%metadatafields> and I<%metadatakeys>.
146: The hash key is a I<$unikey> corresponding to a unique id
147: that is descriptive of the parser location inside the XML tree.
148:
149: Parameters:
150:
151: =over 4
152:
153: =item I<$metastring>
154:
155: A string that contains metadata.
156:
157: =back
158:
159: Returns:
160:
161: nothing
162:
163: =cut
164:
165: #########################################
166: #########################################
167: sub metaeval {
168: my $metastring=shift;
169:
170: my $parser=HTML::LCParser->new(\$metastring);
171: my $token;
172: while ($token=$parser->get_token) {
173: if ($token->[0] eq 'S') {
174: my $entry=$token->[1];
175: my $unikey=$entry;
176: if (defined($token->[2]->{'package'})) {
177: $unikey.='_package_'.$token->[2]->{'package'};
178: }
179: if (defined($token->[2]->{'part'})) {
180: $unikey.='_'.$token->[2]->{'part'};
181: }
182: if (defined($token->[2]->{'id'})) {
183: $unikey.='_'.$token->[2]->{'id'};
184: }
185: if (defined($token->[2]->{'name'})) {
186: $unikey.='_'.$token->[2]->{'name'};
187: }
188: foreach (@{$token->[3]}) {
189: $metadatafields{$unikey.'.'.$_}=$token->[2]->{$_};
190: if ($metadatakeys{$unikey}) {
191: $metadatakeys{$unikey}.=','.$_;
192: } else {
193: $metadatakeys{$unikey}=$_;
194: }
195: }
196: if ($metadatafields{$unikey}) {
197: my $newentry=$parser->get_text('/'.$entry);
198: unless (($metadatafields{$unikey}=~/$newentry/) ||
199: ($newentry eq '')) {
200: $metadatafields{$unikey}.=', '.$newentry;
201: }
202: } else {
203: $metadatafields{$unikey}=$parser->get_text('/'.$entry);
204: }
205: }
206: }
207: }
208:
209: #########################################
210: #########################################
211:
212: =pod
213:
214: =item B<metaread>
215:
216: Read a metadata file
217:
218: Parameters:
219:
220: =over
221:
222: =item I<$logfile>
223:
224: File output stream to output errors and warnings to.
225:
226: =item I<$fn>
227:
228: File name (including path).
229:
230: =back
231:
232: Returns:
233:
234: =over 4
235:
236: =item Scalar string (if successful)
237:
238: XHTML text that indicates successful reading of the metadata.
239:
240: =back
241:
242: =cut
243:
244: #########################################
245: #########################################
246: sub metaread {
247: my ($logfile,$fn)=@_;
248: unless (-e $fn) {
249: print($logfile 'No file '.$fn."\n");
250: return '<br><b>No file:</b> <tt>'.$fn.'</tt>';
251: }
252: print($logfile 'Processing '.$fn."\n");
253: my $metastring;
254: {
255: my $metafh=Apache::File->new($fn);
256: $metastring=join('',<$metafh>);
257: }
258: &metaeval($metastring);
259: return '<br><b>Processed file:</b> <tt>'.$fn.'</tt>';
260: }
261:
262: #########################################
263: #########################################
264:
265: sub coursedependencies {
266: my $url=&Apache::lonnet::declutter(shift);
267: $url=~s/\.meta$//;
268: my ($adomain,$aauthor)=($url=~/^(\w+)\/(\w+)\//);
269: my $regexp=$url;
270: $regexp=~s/(\W)/\\$1/g;
271: $regexp='___'.$regexp.'___course';
272: my %evaldata=&Apache::lonnet::dump('nohist_resevaldata',$adomain,
273: $aauthor,$regexp);
274: my %courses=();
275: foreach (keys %evaldata) {
276: if ($_=~/^([a-zA-Z0-9]+_[a-zA-Z0-9]+)___.+___course$/) {
277: $courses{$1}=1;
278: }
279: }
280: return %courses;
281: }
282: #########################################
283: #########################################
284:
285:
286: =pod
287:
288: =item Form-field-generating subroutines.
289:
290: For input parameters, these subroutines take in values
291: such as I<$name>, I<$value> and other form field metadata.
292: The output (scalar string that is returned) is an XHTML
293: string which presents the form field (foreseeably inside
294: <form></form> tags).
295:
296: =over 4
297:
298: =item B<textfield>
299:
300: =item B<hiddenfield>
301:
302: =item B<selectbox>
303:
304: =back
305:
306: =cut
307:
308: #########################################
309: #########################################
310: sub textfield {
311: my ($title,$name,$value)=@_;
312: return "\n<p><b>$title:</b><br>".
313: '<input type="text" name="'.$name.'" size=80 value="'.$value.'" />';
314: }
315:
316: sub hiddenfield {
317: my ($name,$value)=@_;
318: return "\n".'<input type="hidden" name="'.$name.'" value="'.$value.'" />';
319: }
320:
321: sub selectbox {
322: my ($title,$name,$value,$functionref,@idlist)=@_;
323: my $uctitle=uc($title);
324: my $selout="\n<p><font color=\"#800000\" face=\"helvetica\"><b>$uctitle:".
325: "</b></font><br />".'<select name="'.$name.'">';
326: foreach (@idlist) {
327: $selout.='<option value=\''.$_.'\'';
328: if ($_ eq $value) {
329: $selout.=' selected>'.&{$functionref}($_).'</option>';
330: }
331: else {$selout.='>'.&{$functionref}($_).'</option>';}
332: }
333: return $selout.'</select>';
334: }
335:
336: #########################################
337: #########################################
338:
339: =pod
340:
341: =item B<urlfixup>
342:
343: Fix up a url? First step of publication
344:
345: =cut
346:
347: #########################################
348: #########################################
349: sub urlfixup {
350: my ($url,$target)=@_;
351: unless ($url) { return ''; }
352: #javascript code needs no fixing
353: if ($url =~ /^javascript:/i) { return $url; }
354: if ($url =~ /^mailto:/i) { return $url; }
355: #internal document links need no fixing
356: if ($url =~ /^\#/) { return $url; }
357: my ($host)=($url=~/(?:http\:\/\/)*([^\/]+)/);
358: foreach (values %Apache::lonnet::hostname) {
359: if ($_ eq $host) {
360: $url=~s/^http\:\/\///;
361: $url=~s/^$host//;
362: }
363: }
364: if ($url=~/^http\:\/\//) { return $url; }
365: $url=~s/\~$cuname/res\/$cudom\/$cuname/;
366: return $url;
367: }
368:
369: #########################################
370: #########################################
371:
372: =pod
373:
374: =item B<absoluteurl>
375:
376: Currently undocumented.
377:
378: =cut
379:
380: #########################################
381: #########################################
382: sub absoluteurl {
383: my ($url,$target)=@_;
384: unless ($url) { return ''; }
385: if ($target) {
386: $target=~s/\/[^\/]+$//;
387: $url=&Apache::lonnet::hreflocation($target,$url);
388: }
389: return $url;
390: }
391:
392: #########################################
393: #########################################
394:
395: =pod
396:
397: =item B<set_allow>
398:
399: Currently undocumented
400:
401: =cut
402:
403: #########################################
404: #########################################
405: sub set_allow {
406: my ($allow,$logfile,$target,$tag,$oldurl)=@_;
407: my $newurl=&urlfixup($oldurl,$target);
408: my $return_url=$oldurl;
409: print $logfile 'GUYURL: '.$tag.':'.$oldurl.' - '.$newurl."\n";
410: if ($newurl ne $oldurl) {
411: $return_url=$newurl;
412: print $logfile 'URL: '.$tag.':'.$oldurl.' - '.$newurl."\n";
413: }
414: if (($newurl !~ /^javascript:/i) &&
415: ($newurl !~ /^mailto:/i) &&
416: ($newurl !~ /^http:/i) &&
417: ($newurl !~ /^\#/)) {
418: $$allow{&absoluteurl($newurl,$target)}=1;
419: }
420: return $return_url
421: }
422:
423: #########################################
424: #########################################
425:
426: =pod
427:
428: =item B<get_subscribed_hosts>
429:
430: Currently undocumented
431:
432: =cut
433:
434: #########################################
435: #########################################
436: sub get_subscribed_hosts {
437: my ($target)=@_;
438: my @subscribed;
439: my $filename;
440: $target=~/(.*)\/([^\/]+)$/;
441: my $srcf=$2;
442: opendir(DIR,$1);
443: while ($filename=readdir(DIR)) {
444: if ($filename=~/$srcf\.(\w+)$/) {
445: my $subhost=$1;
446: if (($subhost ne 'meta' && $subhost ne 'subscription') &&
447: ($subhost ne $Apache::lonnet::perlvar{'lonHostID'})) {
448: push(@subscribed,$subhost);
449: }
450: }
451: }
452: closedir(DIR);
453: my $sh;
454: if ( $sh=Apache::File->new("$target.subscription") ) {
455: &Apache::lonnet::logthis("opened $target.subscription");
456: while (my $subline=<$sh>) {
457: &Apache::lonnet::logthis("Trying $subline");
458: if ($subline =~ /(^\w+):/) {
459: if ($1 ne $Apache::lonnet::perlvar{'lonHostID'}) {
460: push(@subscribed,$1);
461: }
462: } else {
463: &Apache::lonnet::logthis("No Match for $subline");
464: }
465: }
466: } else {
467: &Apache::lonnet::logthis("Unable to open $target.subscription");
468: }
469: return @subscribed;
470: }
471:
472:
473: #########################################
474: #########################################
475:
476: =pod
477:
478: =item B<get_max_ids_indices>
479:
480: Currently undocumented
481:
482: =cut
483:
484: #########################################
485: #########################################
486: sub get_max_ids_indices {
487: my ($content)=@_;
488: my $maxindex=10;
489: my $maxid=10;
490: my $needsfixup=0;
491: my $duplicateids=0;
492:
493: my %allids;
494: my %duplicatedids;
495:
496: my $parser=HTML::LCParser->new($content);
497: my $token;
498: while ($token=$parser->get_token) {
499: if ($token->[0] eq 'S') {
500: my $counter;
501: if ($counter=$addid{$token->[1]}) {
502: if ($counter eq 'id') {
503: if (defined($token->[2]->{'id'})) {
504: $maxid=($token->[2]->{'id'}>$maxid)?$token->[2]->{'id'}:$maxid;
505: if (exists($allids{$token->[2]->{'id'}})) {
506: $duplicateids=1;
507: $duplicatedids{$token->[2]->{'id'}}=1;
508: } else {
509: $allids{$token->[2]->{'id'}}=1;
510: }
511: } else {
512: $needsfixup=1;
513: }
514: } else {
515: if (defined($token->[2]->{'index'})) {
516: $maxindex=($token->[2]->{'index'}>$maxindex)?$token->[2]->{'index'}:$maxindex;
517: } else {
518: $needsfixup=1;
519: }
520: }
521: }
522: }
523: }
524: return ($needsfixup,$maxid,$maxindex,$duplicateids,
525: (keys(%duplicatedids)));
526: }
527:
528: #########################################
529: #########################################
530:
531: =pod
532:
533: =item B<get_all_text_unbalanced>
534:
535: Currently undocumented
536:
537: =cut
538:
539: #########################################
540: #########################################
541: sub get_all_text_unbalanced {
542: #there is a copy of this in lonxml.pm
543: my($tag,$pars)= @_;
544: my $token;
545: my $result='';
546: $tag='<'.$tag.'>';
547: while ($token = $$pars[-1]->get_token) {
548: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
549: $result.=$token->[1];
550: } elsif ($token->[0] eq 'PI') {
551: $result.=$token->[2];
552: } elsif ($token->[0] eq 'S') {
553: $result.=$token->[4];
554: } elsif ($token->[0] eq 'E') {
555: $result.=$token->[2];
556: }
557: if ($result =~ /(.*)\Q$tag\E(.*)/s) {
558: #&Apache::lonnet::logthis('Got a winner with leftovers ::'.$2);
559: #&Apache::lonnet::logthis('Result is :'.$1);
560: $result=$1;
561: my $redo=$tag.$2;
562: push (@$pars,HTML::LCParser->new(\$redo));
563: $$pars[-1]->xml_mode('1');
564: last;
565: }
566: }
567: return $result
568: }
569:
570: #########################################
571: #########################################
572:
573: =pod
574:
575: =item B<fix_ids_and_indices>
576:
577: Currently undocumented
578:
579: =cut
580:
581: #########################################
582: #########################################
583: #Arguably this should all be done as a lonnet::ssi instead
584: sub fix_ids_and_indices {
585: my ($logfile,$source,$target)=@_;
586:
587: my %allow;
588: my $content;
589: {
590: my $org=Apache::File->new($source);
591: $content=join('',<$org>);
592: }
593:
594: my ($needsfixup,$maxid,$maxindex,$duplicateids,@duplicatedids)=
595: &get_max_ids_indices(\$content);
596:
597: print $logfile ("Got $needsfixup,$maxid,$maxindex,$duplicateids--".
598: join(', ',@duplicatedids));
599: if ($duplicateids) {
600: print $logfile "Duplicate ID(s) exist, ".join(', ',@duplicatedids)."\n";
601: my $outstring='<font color="red">Unable to publish file, it contains duplicated ID(s), ID(s) need to be unique. The duplicated ID(s) are: '.join(', ',@duplicatedids).'</font>';
602: return ($outstring,1);
603: }
604: if ($needsfixup) {
605: print $logfile "Needs ID and/or index fixup\n".
606: "Max ID : $maxid (min 10)\n".
607: "Max Index: $maxindex (min 10)\n";
608: }
609: my $outstring='';
610: my @parser;
611: $parser[0]=HTML::LCParser->new(\$content);
612: $parser[-1]->xml_mode(1);
613: my $token;
614: while (@parser) {
615: while ($token=$parser[-1]->get_token) {
616: if ($token->[0] eq 'S') {
617: my $counter;
618: my $tag=$token->[1];
619: my $lctag=lc($tag);
620: if ($lctag eq 'allow') {
621: $allow{$token->[2]->{'src'}}=1;
622: next;
623: }
624: my %parms=%{$token->[2]};
625: $counter=$addid{$tag};
626: if (!$counter) { $counter=$addid{$lctag}; }
627: if ($counter) {
628: if ($counter eq 'id') {
629: unless (defined($parms{'id'})) {
630: $maxid++;
631: $parms{'id'}=$maxid;
632: print $logfile 'ID: '.$tag.':'.$maxid."\n";
633: }
634: } elsif ($counter eq 'index') {
635: unless (defined($parms{'index'})) {
636: $maxindex++;
637: $parms{'index'}=$maxindex;
638: print $logfile 'Index: '.$tag.':'.$maxindex."\n";
639: }
640: }
641: }
642: foreach my $type ('src','href','background','bgimg') {
643: foreach my $key (keys(%parms)) {
644: if ($key =~ /^$type$/i) {
645: $parms{$key}=&set_allow(\%allow,$logfile,
646: $target,$tag,
647: $parms{$key});
648: }
649: }
650: }
651: # probably a <randomlabel> image type <label>
652: if ($lctag eq 'label' && defined($parms{'description'})) {
653: my $next_token=$parser[-1]->get_token();
654: if ($next_token->[0] eq 'T') {
655: $next_token->[1]=&set_allow(\%allow,$logfile,
656: $target,$tag,
657: $next_token->[1]);
658: }
659: $parser[-1]->unget_token($next_token);
660: }
661: if ($lctag eq 'applet') {
662: my $codebase='';
663: if (defined($parms{'codebase'})) {
664: my $oldcodebase=$parms{'codebase'};
665: unless ($oldcodebase=~/\/$/) {
666: $oldcodebase.='/';
667: }
668: $codebase=&urlfixup($oldcodebase,$target);
669: $codebase=~s/\/$//;
670: if ($codebase ne $oldcodebase) {
671: $parms{'codebase'}=$codebase;
672: print $logfile 'URL codebase: '.$tag.':'.
673: $oldcodebase.' - '.
674: $codebase."\n";
675: }
676: $allow{&absoluteurl($codebase,$target).'/*'}=1;
677: } else {
678: foreach ('archive','code','object') {
679: if (defined($parms{$_})) {
680: my $oldurl=$parms{$_};
681: my $newurl=&urlfixup($oldurl,$target);
682: $newurl=~s/\/[^\/]+$/\/\*/;
683: print $logfile 'Allow: applet '.$_.':'.
684: $oldurl.' allows '.
685: $newurl."\n";
686: $allow{&absoluteurl($newurl,$target)}=1;
687: }
688: }
689: }
690: }
691: my $newparmstring='';
692: my $endtag='';
693: foreach (keys %parms) {
694: if ($_ eq '/') {
695: $endtag=' /';
696: } else {
697: my $quote=($parms{$_}=~/\"/?"'":'"');
698: $newparmstring.=' '.$_.'='.$quote.$parms{$_}.$quote;
699: }
700: }
701: if (!$endtag) { if ($token->[4]=~m:/>$:) { $endtag=' /'; }; }
702: $outstring.='<'.$tag.$newparmstring.$endtag.'>';
703: if ($lctag eq 'm') {
704: $outstring.=&get_all_text_unbalanced('/m',\@parser);
705: }
706: } elsif ($token->[0] eq 'E') {
707: if ($token->[2]) {
708: unless ($token->[1] eq 'allow') {
709: $outstring.='</'.$token->[1].'>';
710: }
711: }
712: } else {
713: $outstring.=$token->[1];
714: }
715: }
716: pop(@parser);
717: }
718:
719: if ($needsfixup) {
720: print $logfile "End of ID and/or index fixup\n".
721: "Max ID : $maxid (min 10)\n".
722: "Max Index: $maxindex (min 10)\n";
723: } else {
724: print $logfile "Does not need ID and/or index fixup\n";
725: }
726:
727: return ($outstring,0,%allow);
728: }
729:
730: #########################################
731: #########################################
732:
733: =pod
734:
735: =item B<store_metadata>
736:
737: Store the metadata in the metadata table in the loncapa database.
738: Uses lonmysql to access the database.
739:
740: Inputs: \%metadata
741:
742: Returns: (error,status). error is undef on success, status is undef on error.
743:
744: =cut
745:
746: #########################################
747: #########################################
748: sub store_metadata {
749: my %metadata = %{shift()};
750: my $error;
751: # Determine if the table exists
752: my $status = &Apache::lonmysql::check_table('metadata');
753: if (! defined($status)) {
754: $error='<font color="red">WARNING: Cannot connect to '.
755: 'database!</font>';
756: &Apache::lonnet::logthis($error);
757: return ($error,undef);
758: }
759: if ($status == 0) {
760: # It would be nice to actually create the table....
761: $error ='<font color="red">WARNING: The metadata table does not '.
762: 'exist in the LON-CAPA database.</font>';
763: &Apache::lonnet::logthis($error);
764: return ($error,undef);
765: }
766: # Remove old value from table
767: $status = &Apache::lonmysql::remove_from_table
768: ('metadata','url',$metadata{'url'});
769: if (! defined($status)) {
770: $error = '<font color="red">Error when removing old values from '.
771: 'metadata table in LON-CAPA database.</font>';
772: &Apache::lonnet::logthis($error);
773: return ($error,undef);
774: }
775: # Store data in table.
776: $status = &Apache::lonmysql::store_row('metadata',\%metadata);
777: if (! defined($status)) {
778: $error='<font color="red">Error occured storing new values in '.
779: 'metadata table in LON-CAPA database</font>';
780: &Apache::lonnet::logthis($error);
781: return ($error,undef);
782: }
783: return (undef,$status);
784: }
785:
786: #########################################
787: #########################################
788:
789: =pod
790:
791: =item B<publish>
792:
793: This is the workhorse function of this module. This subroutine generates
794: backup copies, performs any automatic processing (prior to publication,
795: especially for rat and ssi files),
796:
797: I<Additional documentation needed.>
798:
799: =cut
800:
801: #########################################
802: #########################################
803: sub publish {
804:
805: my ($source,$target,$style,$batch)=@_;
806: my $logfile;
807: my $scrout='';
808: my $allmeta='';
809: my $content='';
810: my %allow=();
811:
812: unless ($logfile=Apache::File->new('>>'.$source.'.log')) {
813: return
814: '<font color=red>No write permission to user directory, FAIL</font>';
815: }
816: print $logfile
817: "\n\n================= Publish ".localtime()." Phase One ================\n";
818:
819: if (($style eq 'ssi') || ($style eq 'rat')) {
820: # ------------------------------------------------------- This needs processing
821:
822: # ----------------------------------------------------------------- Backup Copy
823: my $copyfile=$source.'.save';
824: if (copy($source,$copyfile)) {
825: print $logfile "Copied original file to ".$copyfile."\n";
826: } else {
827: print $logfile "Unable to write backup ".$copyfile.':'.$!."\n";
828: return "<font color=red>Failed to write backup copy, $!,FAIL</font>";
829: }
830: # ------------------------------------------------------------- IDs and indices
831:
832: my ($outstring,$error);
833: ($outstring,$error,%allow)=&fix_ids_and_indices($logfile,$source,
834: $target);
835: if ($error) { return $outstring; }
836: # ------------------------------------------------------------ Construct Allows
837:
838: $scrout.='<h3>Dependencies</h3>';
839: my $allowstr='';
840: foreach (sort(keys(%allow))) {
841: my $thisdep=$_;
842: if ($thisdep !~ /[^\s]/) { next; }
843: unless ($style eq 'rat') {
844: $allowstr.="\n".'<allow src="'.$thisdep.'" />';
845: }
846: $scrout.='<br>';
847: unless ($thisdep=~/\*/) {
848: $scrout.='<a href="'.$thisdep.'">';
849: }
850: $scrout.='<tt>'.$thisdep.'</tt>';
851: unless ($thisdep=~/\*/) {
852: $scrout.='</a>';
853: if (
854: &Apache::lonnet::getfile($Apache::lonnet::perlvar{'lonDocRoot'}.'/'.
855: $thisdep.'.meta') eq '-1') {
856: $scrout.= ' - <font color="red">Currently not available'.
857: '</font>';
858: } else {
859: my %temphash=(&Apache::lonnet::declutter($target).'___'.
860: &Apache::lonnet::declutter($thisdep).'___usage'
861: => time);
862: $thisdep=~/^\/res\/(\w+)\/(\w+)\//;
863: if ((defined($1)) && (defined($2))) {
864: &Apache::lonnet::put('nohist_resevaldata',\%temphash,
865: $1,$2);
866: }
867: }
868: }
869: }
870: $outstring=~s/\n*(\<\/[^\>]+\>)\s*$/$allowstr\n$1\n/s;
871:
872: #Encode any High ASCII characters
873: $outstring=&HTML::Entities::encode($outstring,"\200-\377");
874: # ------------------------------------------------------------- Write modified.
875:
876: {
877: my $org;
878: unless ($org=Apache::File->new('>'.$source)) {
879: print $logfile "No write permit to $source\n";
880: return
881: '<font color="red">No write permission to '.$source.
882: ', FAIL</font>';
883: }
884: print($org $outstring);
885: }
886: $content=$outstring;
887:
888: }
889: # -------------------------------------------- Initial step done, now metadata.
890:
891: # --------------------------------------- Storage for metadata keys and fields.
892:
893: %metadatafields=();
894: %metadatakeys=();
895:
896: my %oldparmstores=();
897:
898: unless ($batch) {
899: $scrout.='<h3>Metadata Information ' .
900: Apache::loncommon::help_open_topic("Metadata_Description")
901: . '</h3>';
902: }
903:
904: # ------------------------------------------------ First, check out environment
905: unless (-e $source.'.meta') {
906: $metadatafields{'author'}=$ENV{'environment.firstname'}.' '.
907: $ENV{'environment.middlename'}.' '.
908: $ENV{'environment.lastname'}.' '.
909: $ENV{'environment.generation'};
910: $metadatafields{'author'}=~s/\s+/ /g;
911: $metadatafields{'author'}=~s/\s+$//;
912: $metadatafields{'owner'}=$cuname.'@'.$cudom;
913:
914: # ------------------------------------------------ Check out directory hierachy
915:
916: my $thisdisfn=$source;
917: $thisdisfn=~s/^\/home\/$cuname\///;
918:
919: my @urlparts=split(/\//,$thisdisfn);
920: $#urlparts--;
921:
922: my $currentpath='/home/'.$cuname.'/';
923:
924: foreach (@urlparts) {
925: $currentpath.=$_.'/';
926: $scrout.=&metaread($logfile,$currentpath.'default.meta');
927: }
928:
929: # ------------------- Clear out parameters and stores (there should not be any)
930:
931: foreach (keys %metadatafields) {
932: if (($_=~/^parameter/) || ($_=~/^stores/)) {
933: delete $metadatafields{$_};
934: }
935: }
936:
937: } else {
938: # ---------------------- Read previous metafile, remember parameters and stores
939:
940: $scrout.=&metaread($logfile,$source.'.meta');
941:
942: foreach (keys %metadatafields) {
943: if (($_=~/^parameter/) || ($_=~/^stores/)) {
944: $oldparmstores{$_}=1;
945: delete $metadatafields{$_};
946: }
947: }
948:
949: }
950:
951: # -------------------------------------------------- Parse content for metadata
952: if ($style eq 'ssi') {
953: my $oldenv=$ENV{'request.uri'};
954:
955: $ENV{'request.uri'}=$target;
956: $allmeta=Apache::lonxml::xmlparse(undef,'meta',$content);
957: $ENV{'request.uri'}=$oldenv;
958:
959: &metaeval($allmeta);
960: }
961: # ---------------- Find and document discrepancies in the parameters and stores
962:
963: my $chparms='';
964: foreach (sort keys %metadatafields) {
965: if (($_=~/^parameter/) || ($_=~/^stores/)) {
966: unless ($_=~/\.\w+$/) {
967: unless ($oldparmstores{$_}) {
968: print $logfile 'New: '.$_."\n";
969: $chparms.=$_.' ';
970: }
971: }
972: }
973: }
974: if ($chparms) {
975: $scrout.='<p><b>New parameters or stored values:</b> '.
976: $chparms;
977: }
978:
979: $chparms='';
980: foreach (sort keys %oldparmstores) {
981: if (($_=~/^parameter/) || ($_=~/^stores/)) {
982: unless (($metadatafields{$_.'.name'}) ||
983: ($metadatafields{$_.'.package'}) || ($_=~/\.\w+$/)) {
984: print $logfile 'Obsolete: '.$_."\n";
985: $chparms.=$_.' ';
986: }
987: }
988: }
989: if ($chparms) {
990: $scrout.='<p><b>Obsolete parameters or stored values:</b> '.
991: $chparms;
992: }
993:
994: # ------------------------------------------------------- Now have all metadata
995:
996: my %keywords=();
997:
998: if (length($content)<500000) {
999: my $textonly=$content;
1000: $textonly=~s/\<script[^\<]+\<\/script\>//g;
1001: $textonly=~s/\<m\>[^\<]+\<\/m\>//g;
1002: $textonly=~s/\<[^\>]*\>//g;
1003: $textonly=~tr/A-Z/a-z/;
1004: $textonly=~s/[\$\&][a-z]\w*//g;
1005: $textonly=~s/[^a-z\s]//g;
1006:
1007: foreach ($textonly=~m/(\w+)/g) {
1008: unless ($nokey{$_}) {
1009: $keywords{$_}=1;
1010: }
1011: }
1012: }
1013:
1014:
1015: foreach (split(/\W+/,$metadatafields{'keywords'})) {
1016: $keywords{$_}=1;
1017: }
1018: # --------------------------------------------------- Now we also have keywords
1019: # =============================================================================
1020: # INTERACTIVE MODE
1021: #
1022: unless ($batch) {
1023: $scrout.=
1024: '<form name="pubform" action="/adm/publish" method="post">'.
1025: '<p><input type="submit" value="Finalize Publication" /></p>'.
1026: &hiddenfield('phase','two').
1027: &hiddenfield('filename',$ENV{'form.filename'}).
1028: &hiddenfield('allmeta',&Apache::lonnet::escape($allmeta)).
1029: &hiddenfield('dependencies',join(',',keys %allow)).
1030: &textfield('Title','title',$metadatafields{'title'}).
1031: &textfield('Author(s)','author',$metadatafields{'author'}).
1032: &textfield('Subject','subject',$metadatafields{'subject'});
1033:
1034: # --------------------------------------------------- Scan content for keywords
1035:
1036: my $keywords_help = Apache::loncommon::help_open_topic("Publishing_Keywords");
1037: my $keywordout=<<"END";
1038: <script>
1039: function checkAll(field)
1040: {
1041: for (i = 0; i < field.length; i++)
1042: field[i].checked = true ;
1043: }
1044:
1045: function uncheckAll(field)
1046: {
1047: for (i = 0; i < field.length; i++)
1048: field[i].checked = false ;
1049: }
1050: </script>
1051: <p><b>Keywords: $keywords_help</b>
1052: <input type="button" value="check all" onclick="javascript:checkAll(document.pubform.keywords)">
1053: <input type="button" value="uncheck all" onclick="javascript:uncheckAll(document.pubform.keywords)">
1054: <br />
1055: END
1056: $keywordout.='<table border=2><tr>';
1057: my $colcount=0;
1058:
1059: foreach (sort keys %keywords) {
1060: $keywordout.='<td><input type=checkbox name="keywords" value="'.$_.'"';
1061: if ($metadatafields{'keywords'}) {
1062: if ($metadatafields{'keywords'}=~/$_/) {
1063: $keywordout.=' checked';
1064: }
1065: } elsif (&Apache::loncommon::keyword($_)) {
1066: $keywordout.=' checked';
1067: }
1068: $keywordout.='>'.$_.'</td>';
1069: if ($colcount>10) {
1070: $keywordout.="</tr><tr>\n";
1071: $colcount=0;
1072: }
1073: $colcount++;
1074: }
1075:
1076: $keywordout.='</tr></table>';
1077:
1078: $scrout.=$keywordout;
1079:
1080: $scrout.=&textfield('Additional Keywords','addkey','');
1081:
1082: $scrout.=&textfield('Notes','notes',$metadatafields{'notes'});
1083:
1084: $scrout.=
1085: '<p><b>Abstract:</b><br><textarea cols=80 rows=5 name=abstract>'.
1086: $metadatafields{'abstract'}.'</textarea>';
1087:
1088: $source=~/\.(\w+)$/;
1089:
1090: $scrout.=&hiddenfield('mime',$1);
1091:
1092: $scrout.=&selectbox('Language','language',
1093: $metadatafields{'language'},
1094: \&Apache::loncommon::languagedescription,
1095: (&Apache::loncommon::languageids),
1096: );
1097:
1098: unless ($metadatafields{'creationdate'}) {
1099: $metadatafields{'creationdate'}=time;
1100: }
1101: $scrout.=&hiddenfield('creationdate',
1102: &Apache::loncommon::unsqltime($metadatafields{'creationdate'}));
1103:
1104: $scrout.=&hiddenfield('lastrevisiondate',time);
1105:
1106:
1107: $scrout.=&textfield('Publisher/Owner','owner',
1108: $metadatafields{'owner'});
1109:
1110: # -------------------------------------------------- Correct copyright for rat.
1111: if ($style eq 'rat') {
1112: if ($metadatafields{'copyright'} eq 'public') {
1113: delete $metadatafields{'copyright'};
1114: }
1115: $scrout.=&selectbox('Copyright/Distribution','copyright',
1116: $metadatafields{'copyright'},
1117: \&Apache::loncommon::copyrightdescription,
1118: (grep !/^public$/,(&Apache::loncommon::copyrightids)));
1119: }
1120: else {
1121: $scrout.=&selectbox('Copyright/Distribution','copyright',
1122: $metadatafields{'copyright'},
1123: \&Apache::loncommon::copyrightdescription,
1124: (&Apache::loncommon::copyrightids));
1125: }
1126:
1127: my $copyright_help =
1128: Apache::loncommon::help_open_topic('Publishing_Copyright');
1129: $scrout =~ s/DISTRIBUTION:/'DISTRIBUTION: ' . $copyright_help/ge;
1130: return $scrout.
1131: '<p><input type="submit" value="Finalize Publication" /></p></form>';
1132: # =============================================================================
1133: # BATCH MODE
1134: #
1135: } else {
1136: # Transfer metadata directly to environment for stage 2
1137: foreach (keys %metadatafields) {
1138: $ENV{'form.'.$_}=$metadatafields{$_};
1139: }
1140: $ENV{'form.addkey'}='';
1141: $ENV{'form.keywords'}='';
1142: foreach (keys %keywords) {
1143: if ($metadatafields{'keywords'}) {
1144: if ($metadatafields{'keywords'}=~/$_/) {
1145: $ENV{'form.keywords'}.=$_.',';
1146: }
1147: } elsif (&Apache::loncommon::keyword($_)) {
1148: $ENV{'form.keywords'}.=$_.',';
1149: }
1150: }
1151: $ENV{'form.keywords'}=~s/\,$//;
1152: unless ($ENV{'form.creationdate'}) { $ENV{'form.creationdate'}=time; }
1153: $ENV{'form.lastrevisiondate'}=time;
1154: if ((($style eq 'rat') && ($ENV{'form.copyright'} eq 'public')) ||
1155: (!$ENV{'form.copyright'})) {
1156: $ENV{'form.copyright'}='default';
1157: }
1158: $ENV{'form.allmeta'}=&Apache::lonnet::escape($allmeta);
1159: return $scrout;
1160: }
1161: }
1162:
1163: #########################################
1164: #########################################
1165:
1166: =pod
1167:
1168: =item B<phasetwo>
1169:
1170: Render second interface showing status of publication steps.
1171: This is publication step two.
1172:
1173: Parameters:
1174:
1175: =over 4
1176:
1177: =item I<$source>
1178:
1179: =item I<$target>
1180:
1181: =item I<$style>
1182:
1183: =item I<$distarget>
1184:
1185: =back
1186:
1187: Returns:
1188:
1189: =over 4
1190:
1191: =item Scalar string
1192:
1193: String contains status (errors and warnings) and information associated with
1194: the server's attempts at publication.
1195:
1196: =cut
1197:
1198: #'stupid emacs
1199: #########################################
1200: #########################################
1201: sub phasetwo {
1202:
1203: my ($r,$source,$target,$style,$distarget,$batch)=@_;
1204: $source=~s/\/+/\//g;
1205: $target=~s/\/+/\//g;
1206: $distarget=~s/\/+/\//g;
1207: my $logfile;
1208: unless ($logfile=Apache::File->new('>>'.$source.'.log')) {
1209: return
1210: '<font color=red>No write permission to user directory, FAIL</font>';
1211: }
1212: print $logfile
1213: "\n================= Publish ".localtime()." Phase Two ================\n";
1214:
1215: %metadatafields=();
1216: %metadatakeys=();
1217:
1218: &metaeval(&Apache::lonnet::unescape($ENV{'form.allmeta'}));
1219:
1220: $metadatafields{'title'}=$ENV{'form.title'};
1221: $metadatafields{'author'}=$ENV{'form.author'};
1222: $metadatafields{'subject'}=$ENV{'form.subject'};
1223: $metadatafields{'notes'}=$ENV{'form.notes'};
1224: $metadatafields{'abstract'}=$ENV{'form.abstract'};
1225: $metadatafields{'mime'}=$ENV{'form.mime'};
1226: $metadatafields{'language'}=$ENV{'form.language'};
1227: $metadatafields{'creationdate'}=$ENV{'form.creationdate'};
1228: $metadatafields{'lastrevisiondate'}=$ENV{'form.lastrevisiondate'};
1229: $metadatafields{'owner'}=$ENV{'form.owner'};
1230: $metadatafields{'copyright'}=$ENV{'form.copyright'};
1231: $metadatafields{'dependencies'}=$ENV{'form.dependencies'};
1232:
1233: my $allkeywords=$ENV{'form.addkey'};
1234: if (exists($ENV{'form.keywords'})) {
1235: if (ref($ENV{'form.keywords'})) {
1236: $allkeywords .= ','.join(',',@{$ENV{'form.keywords'}});
1237: } else {
1238: $allkeywords .= ','.$ENV{'form.keywords'};
1239: }
1240: }
1241: $allkeywords=~s/\W+/\,/;
1242: $allkeywords=~s/^\,//;
1243: $metadatafields{'keywords'}=$allkeywords;
1244:
1245: {
1246: print $logfile "\nWrite metadata file for ".$source;
1247: my $mfh;
1248: unless ($mfh=Apache::File->new('>'.$source.'.meta')) {
1249: return
1250: '<font color=red>Could not write metadata, FAIL</font>';
1251: }
1252: foreach (sort keys %metadatafields) {
1253: unless ($_=~/\./) {
1254: my $unikey=$_;
1255: $unikey=~/^([A-Za-z]+)/;
1256: my $tag=$1;
1257: $tag=~tr/A-Z/a-z/;
1258: print $mfh "\n\<$tag";
1259: foreach (split(/\,/,$metadatakeys{$unikey})) {
1260: my $value=$metadatafields{$unikey.'.'.$_};
1261: $value=~s/\"/\'\'/g;
1262: print $mfh ' '.$_.'="'.$value.'"';
1263: }
1264: print $mfh '>'.
1265: &HTML::Entities::encode($metadatafields{$unikey})
1266: .'</'.$tag.'>';
1267: }
1268: }
1269: $r->print('<p>Wrote Metadata');
1270: print $logfile "\nWrote metadata";
1271: }
1272:
1273: # -------------------------------- Synchronize entry with SQL metadata database
1274:
1275: $metadatafields{'url'} = $distarget;
1276: $metadatafields{'version'} = 'current';
1277: unless ($metadatafields{'copyright'} eq 'priv') {
1278: my ($error,$success) = &store_metadata(\%metadatafields);
1279: if ($success) {
1280: $r->print('<p>Synchronized SQL metadata database');
1281: print $logfile "\nSynchronized SQL metadata database";
1282: } else {
1283: $r->print($error);
1284: print $logfile "\n".$error;
1285: }
1286: } else {
1287: $r->print('<p>Private Publication - did not synchronize database');
1288: print $logfile "\nPrivate: Did not synchronize data into ".
1289: "SQL metadata database";
1290: }
1291: # ----------------------------------------------------------- Copy old versions
1292:
1293: if (-e $target) {
1294: my $filename;
1295: my $maxversion=0;
1296: $target=~/(.*)\/([^\/]+)\.(\w+)$/;
1297: my $srcf=$2;
1298: my $srct=$3;
1299: my $srcd=$1;
1300: unless ($srcd=~/^\/home\/httpd\/html\/res/) {
1301: print $logfile "\nPANIC: Target dir is ".$srcd;
1302: return "<font color=red>Invalid target directory, FAIL</font>";
1303: }
1304: opendir(DIR,$srcd);
1305: while ($filename=readdir(DIR)) {
1306: if (-l $srcd.'/'.$filename) {
1307: unlink($srcd.'/'.$filename);
1308: unlink($srcd.'/'.$filename.'.meta');
1309: } else {
1310: if ($filename=~/$srcf\.(\d+)\.$srct$/) {
1311: $maxversion=($1>$maxversion)?$1:$maxversion;
1312: }
1313: }
1314: }
1315: closedir(DIR);
1316: $maxversion++;
1317: $r->print('<p>Creating old version '.$maxversion);
1318: print $logfile "\nCreating old version ".$maxversion;
1319:
1320: my $copyfile=$srcd.'/'.$srcf.'.'.$maxversion.'.'.$srct;
1321:
1322: if (copy($target,$copyfile)) {
1323: print $logfile "Copied old target to ".$copyfile."\n";
1324: $r->print('<p>Copied old target file');
1325: } else {
1326: print $logfile "Unable to write ".$copyfile.':'.$!."\n";
1327: return "<font color=red>Failed to copy old target, $!, FAIL</font>";
1328: }
1329:
1330: # --------------------------------------------------------------- Copy Metadata
1331:
1332: $copyfile=$copyfile.'.meta';
1333:
1334: if (copy($target.'.meta',$copyfile)) {
1335: print $logfile "Copied old target metadata to ".$copyfile."\n";
1336: $r->print('<p>Copied old metadata')
1337: } else {
1338: print $logfile "Unable to write metadata ".$copyfile.':'.$!."\n";
1339: if (-e $target.'.meta') {
1340: return
1341: "<font color=red>Failed to write old metadata copy, $!, FAIL</font>";
1342: }
1343: }
1344:
1345:
1346: } else {
1347: $r->print('<p>Initial version');
1348: print $logfile "\nInitial version";
1349: }
1350:
1351: # ---------------------------------------------------------------- Write Source
1352: my $copyfile=$target;
1353:
1354: my @parts=split(/\//,$copyfile);
1355: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
1356:
1357: my $count;
1358: for ($count=5;$count<$#parts;$count++) {
1359: $path.="/$parts[$count]";
1360: if ((-e $path)!=1) {
1361: print $logfile "\nCreating directory ".$path;
1362: $r->print('<p>Created directory '.$parts[$count]);
1363: mkdir($path,0777);
1364: }
1365: }
1366:
1367: if (copy($source,$copyfile)) {
1368: print $logfile "\nCopied original source to ".$copyfile."\n";
1369: $r->print('<p>Copied source file');
1370: } else {
1371: print $logfile "\nUnable to write ".$copyfile.':'.$!."\n";
1372: return "<font color=red>Failed to copy source, $!, FAIL</font>";
1373: }
1374:
1375: # --------------------------------------------------------------- Copy Metadata
1376:
1377: $copyfile=$copyfile.'.meta';
1378:
1379: if (copy($source.'.meta',$copyfile)) {
1380: print $logfile "\nCopied original metadata to ".$copyfile."\n";
1381: $r->print('<p>Copied metadata');
1382: } else {
1383: print $logfile "\nUnable to write metadata ".$copyfile.':'.$!."\n";
1384: return
1385: "<font color=red>Failed to write metadata copy, $!, FAIL</font>";
1386: }
1387: $r->rflush;
1388: # --------------------------------------------------- Send update notifications
1389:
1390: my @subscribed=&get_subscribed_hosts($target);
1391: foreach my $subhost (@subscribed) {
1392: $r->print('<p>Notifying host '.$subhost.':');$r->rflush;
1393: print $logfile "\nNotifying host ".$subhost.':';
1394: my $reply=&Apache::lonnet::critical('update:'.$target,$subhost);
1395: $r->print($reply.'<br />');$r->rflush;
1396: print $logfile $reply;
1397: }
1398:
1399: # ---------------------------------------- Send update notifications, meta only
1400:
1401: my @subscribedmeta=&get_subscribed_hosts("$target.meta");
1402: foreach my $subhost (@subscribedmeta) {
1403: $r->print('<p>Notifying host for metadata only '.$subhost.':');$r->rflush;
1404: print $logfile "\nNotifying host for metadata only ".$subhost.':';
1405: my $reply=&Apache::lonnet::critical('update:'.$target.'.meta',
1406: $subhost);
1407: $r->print($reply.'<br />');$r->rflush;
1408: print $logfile $reply;
1409: }
1410:
1411: # --------------------------------------------------- Notify subscribed courses
1412: my %courses=&coursedependencies($target);
1413: my $now=time;
1414: foreach (keys %courses) {
1415: $r->print('<p>Notifying course '.$_.':');$r->rflush;
1416: print $logfile "\nNotifying host ".$_.':';
1417: my ($cdom,$cname)=split(/\_/,$_);
1418: my $reply=&Apache::lonnet::cput
1419: ('versionupdate',{$target => $now},$cdom,$cname);
1420: $r->print($reply.'<br />');$r->rflush;
1421: print $logfile $reply;
1422: }
1423: # ------------------------------------------------ Provide link to new resource
1424: unless ($batch) {
1425: my $thisdistarget=$target;
1426: $thisdistarget=~s/^$docroot//;
1427:
1428: my $thissrc=$source;
1429: $thissrc=~s/^\/home\/(\w+)\/public_html/\/priv\/$1/;
1430:
1431: my $thissrcdir=$thissrc;
1432: $thissrcdir=~s/\/[^\/]+$/\//;
1433:
1434:
1435: $r->print(
1436: '<hr><a href="'.$thisdistarget.'"><font size="+2">'.
1437: 'View Published Version</font></a>'.
1438: '<p><a href="'.$thissrc.'"><font size=+2>Back to Source</font></a>'.
1439: '<p><a href="'.$thissrcdir.
1440: '"><font size="+2">Back to Source Directory</font></a>');
1441: }
1442: }
1443:
1444: #########################################
1445:
1446: sub batchpublish {
1447: my ($r,$srcfile,$targetfile)=@_;
1448: $srcfile=~s/\/+/\//g;
1449: $targetfile=~s/\/+/\//g;
1450: my $thisdisfn=$srcfile;
1451: $thisdisfn=~s/\/home\/korte\/public_html\///;
1452: $srcfile=~s/\/+/\//g;
1453:
1454: my $docroot=$r->dir_config('lonDocRoot');
1455: my $thisdistarget=$targetfile;
1456: $thisdistarget=~s/^$docroot//;
1457:
1458:
1459: undef %metadatafields;
1460: undef %metadatakeys;
1461: %metadatafields=();
1462: %metadatakeys=();
1463: $srcfile=~/\.(\w+)$/;
1464: my $thistype=$1;
1465:
1466:
1467: my $thisembstyle=&Apache::loncommon::fileembstyle($thistype);
1468:
1469: $r->print('<h2>Publishing <tt>'.$thisdisfn.'</tt></h2>');
1470:
1471: # phase one takes
1472: # my ($source,$target,$style,$batch)=@_;
1473: $r->print('<p>'.&publish($srcfile,$targetfile,$thisembstyle,1).'</p>');
1474: # phase two takes
1475: # my ($source,$target,$style,$distarget,batch)=@_;
1476: # $ENV{'form.allmeta'},$ENV{'form.title'},$ENV{'form.author'},...
1477: $r->print('<p>');
1478: &phasetwo($r,$srcfile,$targetfile,$thisembstyle,$thisdistarget,1);
1479: $r->print('</p>');
1480: return '';
1481: }
1482:
1483: #########################################
1484:
1485: sub publishdirectory {
1486: my ($r,$fn,$thisdisfn)=@_;
1487: $fn=~s/\/+/\//g;
1488: $thisdisfn=~s/\/+/\//g;
1489: my $resdir=
1490: $Apache::lonnet::perlvar{'lonDocRoot'}.'/res/'.$cudom.'/'.$cuname.'/'.
1491: $thisdisfn;
1492: $r->print('<h1>Directory <tt>'.$thisdisfn.'</tt></h1>'.
1493: 'Target: <tt>'.$resdir.'</tt><br />');
1494:
1495: my $dirptr=16384; # Mask indicating a directory in stat.cmode.
1496:
1497: opendir(DIR,$fn);
1498: my @files=sort(readdir(DIR));
1499: foreach my $filename (@files) {
1500: my ($cdev,$cino,$cmode,$cnlink,
1501: $cuid,$cgid,$crdev,$csize,
1502: $catime,$cmtime,$cctime,
1503: $cblksize,$cblocks)=stat($fn.'/'.$filename);
1504:
1505: my $extension='';
1506: if ($filename=~/\.(\w+)$/) { $extension=$1; }
1507: if ($cmode&$dirptr) {
1508: if (($filename!~/^\./) && ($ENV{'form.pubrec'})) {
1509: &publishdirectory($r,$fn.'/'.$filename,$thisdisfn.'/'.$filename);
1510: }
1511: } elsif ((&Apache::loncommon::fileembstyle($extension) ne 'hdn') &&
1512: ($filename!~/^[\#\.]/) && ($filename!~/\~$/)) {
1513: # find out publication status and/or exiting metadata
1514: my $publishthis=0;
1515: if (-e $resdir.'/'.$filename) {
1516: my ($rdev,$rino,$rmode,$rnlink,
1517: $ruid,$rgid,$rrdev,$rsize,
1518: $ratime,$rmtime,$rctime,
1519: $rblksize,$rblocks)=stat($resdir.'/'.$filename);
1520: if ($rmtime<$cmtime) {
1521: # previously published, modified now
1522: $publishthis=1;
1523: }
1524: } else {
1525: # never published
1526: $publishthis=1;
1527: }
1528: if ($publishthis) {
1529: &batchpublish($r,$fn.'/'.$filename,$resdir.'/'.$filename);
1530: } else {
1531: $r->print('<br />Skipping '.$filename.'<br />');
1532: }
1533: $r->rflush();
1534: }
1535: }
1536: closedir(DIR);
1537: }
1538: #########################################
1539:
1540: =pod
1541:
1542: =item B<handler>
1543:
1544: A basic outline of the handler subroutine follows.
1545:
1546: =over 4
1547:
1548: =item *
1549:
1550: Get query string for limited number of parameters.
1551:
1552: =item *
1553:
1554: Check filename.
1555:
1556: =item *
1557:
1558: File is there and owned, init lookup tables.
1559:
1560: =item *
1561:
1562: Start page output.
1563:
1564: =item *
1565:
1566: Evaluate individual file, and then output information.
1567:
1568: =item *
1569:
1570: Publishing from $thisfn to $thistarget with $thisembstyle.
1571:
1572: =back
1573:
1574: =cut
1575:
1576: #########################################
1577: #########################################
1578: sub handler {
1579: my $r=shift;
1580:
1581: if ($r->header_only) {
1582: $r->content_type('text/html');
1583: $r->send_http_header;
1584: return OK;
1585: }
1586:
1587: # Get query string for limited number of parameters
1588:
1589: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1590: ['filename']);
1591:
1592: # -------------------------------------------------------------- Check filename
1593:
1594: my $fn=$ENV{'form.filename'};
1595:
1596:
1597: unless ($fn) {
1598: $r->log_reason($cuname.' at '.$cudom.
1599: ' trying to publish empty filename', $r->filename);
1600: return HTTP_NOT_FOUND;
1601: }
1602:
1603: ($cuname,$cudom)=
1604: &Apache::loncacc::constructaccess($fn,$r->dir_config('lonDefDomain'));
1605: unless (($cuname) && ($cudom)) {
1606: $r->log_reason($cuname.' at '.$cudom.
1607: ' trying to publish file '.$ENV{'form.filename'}.
1608: ' ('.$fn.') - not authorized',
1609: $r->filename);
1610: return HTTP_NOT_ACCEPTABLE;
1611: }
1612:
1613: unless (&Apache::lonnet::homeserver($cuname,$cudom)
1614: eq $r->dir_config('lonHostID')) {
1615: $r->log_reason($cuname.' at '.$cudom.
1616: ' trying to publish file '.$ENV{'form.filename'}.
1617: ' ('.$fn.') - not homeserver ('.
1618: &Apache::lonnet::homeserver($cuname,$cudom).')',
1619: $r->filename);
1620: return HTTP_NOT_ACCEPTABLE;
1621: }
1622:
1623: $fn=~s/^http\:\/\/[^\/]+//;
1624: $fn=~s/^\/\~(\w+)/\/home\/$1\/public_html/;
1625:
1626: my $targetdir='';
1627: $docroot=$r->dir_config('lonDocRoot');
1628: if ($1 ne $cuname) {
1629: $r->log_reason($cuname.' at '.$cudom.
1630: ' trying to publish unowned file '.$ENV{'form.filename'}.
1631: ' ('.$fn.')',
1632: $r->filename);
1633: return HTTP_NOT_ACCEPTABLE;
1634: } else {
1635: $targetdir=$docroot.'/res/'.$cudom;
1636: }
1637:
1638:
1639: unless (-e $fn) {
1640: $r->log_reason($cuname.' at '.$cudom.
1641: ' trying to publish non-existing file '.$ENV{'form.filename'}.
1642: ' ('.$fn.')',
1643: $r->filename);
1644: return HTTP_NOT_FOUND;
1645: }
1646:
1647: unless ($ENV{'form.phase'} eq 'two') {
1648:
1649: # -------------------------------- File is there and owned, init lookup tables.
1650:
1651: %addid=();
1652:
1653: {
1654: my $fh=Apache::File->new($r->dir_config('lonTabDir').'/addid.tab');
1655: while (<$fh>=~/(\w+)\s+(\w+)/) {
1656: $addid{$1}=$2;
1657: }
1658: }
1659:
1660: %nokey=();
1661:
1662: {
1663: my $fh=Apache::File->new($r->dir_config('lonIncludes').'/un_keyword.tab');
1664: while (<$fh>) {
1665: my $word=$_;
1666: chomp($word);
1667: $nokey{$word}=1;
1668: }
1669: }
1670:
1671: }
1672:
1673: # ---------------------------------------------------------- Start page output.
1674:
1675: $r->content_type('text/html');
1676: $r->send_http_header;
1677:
1678: $r->print('<html><head><title>LON-CAPA Publishing</title></head>');
1679: $r->print(&Apache::loncommon::bodytag('Resource Publication'));
1680:
1681:
1682: my $thisfn=$fn;
1683:
1684: my $thistarget=$thisfn;
1685:
1686: $thistarget=~s/^\/home/$targetdir/;
1687: $thistarget=~s/\/public\_html//;
1688:
1689: my $thisdistarget=$thistarget;
1690: $thisdistarget=~s/^$docroot//;
1691:
1692: my $thisdisfn=$thisfn;
1693: $thisdisfn=~s/^\/home\/$cuname\/public_html\///;
1694:
1695: if ($fn=~/\/$/) {
1696: # -------------------------------------------------------- This is a directory
1697: &publishdirectory($r,$fn,$thisdisfn);
1698:
1699: } else {
1700: # ---------------------- Evaluate individual file, and then output information.
1701: $thisfn=~/\.(\w+)$/;
1702: my $thistype=$1;
1703: my $thisembstyle=&Apache::loncommon::fileembstyle($thistype);
1704:
1705: $r->print('<h2>Publishing '.
1706: &Apache::loncommon::filedescription($thistype).' <tt>'.
1707: '<a href="/~'.$cuname.'/'.$thisdisfn.'" target="cat">'.$thisdisfn.
1708: '</a></tt></h2><b>Target:</b> <tt>'.$thisdistarget.'</tt><p>');
1709:
1710: if (($cuname ne $ENV{'user.name'}) || ($cudom ne $ENV{'user.domain'})) {
1711: $r->print('<h3><font color="red">Co-Author: '.$cuname.' at '.$cudom.
1712: '</font></h3>');
1713: }
1714:
1715: if (&Apache::loncommon::fileembstyle($thistype) eq 'ssi') {
1716: $r->print('<br /><a href="/adm/diff?filename=/~'.$cuname.'/'.
1717: $thisdisfn.
1718: '&versiontwo=priv" target="cat">Diffs with Current Version</a><p>');
1719: }
1720:
1721: # ------------------ Publishing from $thisfn to $thistarget with $thisembstyle.
1722:
1723: unless ($ENV{'form.phase'} eq 'two') {
1724: $r->print(
1725: '<hr />'.&publish($thisfn,$thistarget,$thisembstyle));
1726: } else {
1727: $r->print('<hr />');
1728: &phasetwo($r,$thisfn,$thistarget,$thisembstyle,$thisdistarget);
1729: }
1730:
1731: }
1732: $r->print('</body></html>');
1733:
1734: return OK;
1735: }
1736:
1737: 1;
1738: __END__
1739:
1740: =pod
1741:
1742: =back
1743:
1744: =cut
1745:
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