1: # The LearningOnline Network with CAPA
2: # Publication Handler
3: #
4: # $Id: lonpublisher.pm,v 1.100 2002/10/07 21:07:08 matthew 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:
131: my %addid;
132: my %nokey;
133:
134: my %metadatafields;
135: my %metadatakeys;
136:
137: my $docroot;
138:
139: my $cuname;
140: my $cudom;
141:
142: #########################################
143: #########################################
144:
145: =pod
146:
147: =item B<metaeval>
148:
149: Evaluates a string that contains metadata. This subroutine
150: stores values inside I<%metadatafields> and I<%metadatakeys>.
151: The hash key is a I<$unikey> corresponding to a unique id
152: that is descriptive of the parser location inside the XML tree.
153:
154: Parameters:
155:
156: =over 4
157:
158: =item I<$metastring>
159:
160: A string that contains metadata.
161:
162: =back
163:
164: Returns:
165:
166: nothing
167:
168: =cut
169:
170: #########################################
171: #########################################
172: sub metaeval {
173: my $metastring=shift;
174:
175: my $parser=HTML::LCParser->new(\$metastring);
176: my $token;
177: while ($token=$parser->get_token) {
178: if ($token->[0] eq 'S') {
179: my $entry=$token->[1];
180: my $unikey=$entry;
181: if (defined($token->[2]->{'package'})) {
182: $unikey.='_package_'.$token->[2]->{'package'};
183: }
184: if (defined($token->[2]->{'part'})) {
185: $unikey.='_'.$token->[2]->{'part'};
186: }
187: if (defined($token->[2]->{'id'})) {
188: $unikey.='_'.$token->[2]->{'id'};
189: }
190: if (defined($token->[2]->{'name'})) {
191: $unikey.='_'.$token->[2]->{'name'};
192: }
193: foreach (@{$token->[3]}) {
194: $metadatafields{$unikey.'.'.$_}=$token->[2]->{$_};
195: if ($metadatakeys{$unikey}) {
196: $metadatakeys{$unikey}.=','.$_;
197: } else {
198: $metadatakeys{$unikey}=$_;
199: }
200: }
201: if ($metadatafields{$unikey}) {
202: my $newentry=$parser->get_text('/'.$entry);
203: unless (($metadatafields{$unikey}=~/$newentry/) ||
204: ($newentry eq '')) {
205: $metadatafields{$unikey}.=', '.$newentry;
206: }
207: } else {
208: $metadatafields{$unikey}=$parser->get_text('/'.$entry);
209: }
210: }
211: }
212: }
213:
214: #########################################
215: #########################################
216:
217: =pod
218:
219: =item B<metaread>
220:
221: Read a metadata file
222:
223: Parameters:
224:
225: =over
226:
227: =item I<$logfile>
228:
229: File output stream to output errors and warnings to.
230:
231: =item I<$fn>
232:
233: File name (including path).
234:
235: =back
236:
237: Returns:
238:
239: =over 4
240:
241: =item Scalar string (if successful)
242:
243: XHTML text that indicates successful reading of the metadata.
244:
245: =back
246:
247: =cut
248:
249: #########################################
250: #########################################
251: sub metaread {
252: my ($logfile,$fn)=@_;
253: unless (-e $fn) {
254: print($logfile 'No file '.$fn."\n");
255: return '<br><b>No file:</b> <tt>'.$fn.'</tt>';
256: }
257: print($logfile 'Processing '.$fn."\n");
258: my $metastring;
259: {
260: my $metafh=Apache::File->new($fn);
261: $metastring=join('',<$metafh>);
262: }
263: &metaeval($metastring);
264: return '<br><b>Processed file:</b> <tt>'.$fn.'</tt>';
265: }
266:
267: #########################################
268: #########################################
269:
270: =pod
271:
272: =item B<sqltime>
273:
274: Convert 'time' format into a datetime sql format
275:
276: Parameters:
277:
278: =over 4
279:
280: =item I<$timef>
281:
282: Seconds since 00:00:00 UTC, January 1, 1970.
283:
284: =back
285:
286: Returns:
287:
288: =over 4
289:
290: =item Scalar string
291:
292: MySQL-compatible datetime string.
293:
294: =back
295:
296: =cut
297:
298: #########################################
299: #########################################
300: sub sqltime {
301: my $timef=shift @_;
302: my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) =
303: localtime($timef);
304: $mon++; $year+=1900;
305: return "$year-$mon-$mday $hour:$min:$sec";
306: }
307:
308:
309: #########################################
310: #########################################
311:
312: =pod
313:
314: =item Form-field-generating subroutines.
315:
316: For input parameters, these subroutines take in values
317: such as I<$name>, I<$value> and other form field metadata.
318: The output (scalar string that is returned) is an XHTML
319: string which presents the form field (foreseeably inside
320: <form></form> tags).
321:
322: =over 4
323:
324: =item B<textfield>
325:
326: =item B<hiddenfield>
327:
328: =item B<selectbox>
329:
330: =back
331:
332: =cut
333:
334: #########################################
335: #########################################
336: sub textfield {
337: my ($title,$name,$value)=@_;
338: return "\n<p><b>$title:</b><br>".
339: '<input type="text" name="'.$name.'" size=80 value="'.$value.'" />';
340: }
341:
342: sub hiddenfield {
343: my ($name,$value)=@_;
344: return "\n".'<input type="hidden" name="'.$name.'" value="'.$value.'" />';
345: }
346:
347: sub selectbox {
348: my ($title,$name,$value,$functionref,@idlist)=@_;
349: my $uctitle=uc($title);
350: my $selout="\n<p><font color=\"#800000\" face=\"helvetica\"><b>$uctitle:".
351: "</b></font><br />".'<select name="'.$name.'">';
352: foreach (@idlist) {
353: $selout.='<option value=\''.$_.'\'';
354: if ($_ eq $value) {
355: $selout.=' selected>'.&{$functionref}($_).'</option>';
356: }
357: else {$selout.='>'.&{$functionref}($_).'</option>';}
358: }
359: return $selout.'</select>';
360: }
361:
362: #########################################
363: #########################################
364:
365: =pod
366:
367: =item B<urlfixup>
368:
369: Fix up a url? First step of publication
370:
371: =cut
372:
373: #########################################
374: #########################################
375: sub urlfixup {
376: my ($url,$target)=@_;
377: unless ($url) { return ''; }
378: #javascript code needs no fixing
379: if ($url =~ /^javascript:/i) { return $url; }
380: if ($url =~ /^mailto:/i) { return $url; }
381: #internal document links need no fixing
382: if ($url =~ /^\#/) { return $url; }
383: my ($host)=($url=~/(?:http\:\/\/)*([^\/]+)/);
384: foreach (values %Apache::lonnet::hostname) {
385: if ($_ eq $host) {
386: $url=~s/^http\:\/\///;
387: $url=~s/^$host//;
388: }
389: }
390: if ($url=~/^http\:\/\//) { return $url; }
391: $url=~s/\~$cuname/res\/$cudom\/$cuname/;
392: return $url;
393: }
394:
395: #########################################
396: #########################################
397:
398: =pod
399:
400: =item B<absoluteurl>
401:
402: Currently undocumented.
403:
404: =cut
405:
406: #########################################
407: #########################################
408: sub absoluteurl {
409: my ($url,$target)=@_;
410: unless ($url) { return ''; }
411: if ($target) {
412: $target=~s/\/[^\/]+$//;
413: $url=&Apache::lonnet::hreflocation($target,$url);
414: }
415: return $url;
416: }
417:
418: #########################################
419: #########################################
420:
421: =pod
422:
423: =item B<set_allow>
424:
425: Currently undocumented
426:
427: =cut
428:
429: #########################################
430: #########################################
431: sub set_allow {
432: my ($allow,$logfile,$target,$tag,$oldurl)=@_;
433: my $newurl=&urlfixup($oldurl,$target);
434: my $return_url=$oldurl;
435: print $logfile 'GUYURL: '.$tag.':'.$oldurl.' - '.$newurl."\n";
436: if ($newurl ne $oldurl) {
437: $return_url=$newurl;
438: print $logfile 'URL: '.$tag.':'.$oldurl.' - '.$newurl."\n";
439: }
440: if (($newurl !~ /^javascript:/i) &&
441: ($newurl !~ /^mailto:/i) &&
442: ($newurl !~ /^http:/i) &&
443: ($newurl !~ /^\#/)) {
444: $$allow{&absoluteurl($newurl,$target)}=1;
445: }
446: return $return_url
447: }
448:
449: #########################################
450: #########################################
451:
452: =pod
453:
454: =item B<get_subscribed_hosts>
455:
456: Currently undocumented
457:
458: =cut
459:
460: #########################################
461: #########################################
462: sub get_subscribed_hosts {
463: my ($target)=@_;
464: my @subscribed;
465: my $filename;
466: $target=~/(.*)\/([^\/]+)$/;
467: my $srcf=$2;
468: opendir(DIR,$1);
469: while ($filename=readdir(DIR)) {
470: if ($filename=~/$srcf\.(\w+)$/) {
471: my $subhost=$1;
472: if (($subhost ne 'meta' && $subhost ne 'subscription') &&
473: ($subhost ne $Apache::lonnet::perlvar{'lonHostID'})) {
474: push(@subscribed,$subhost);
475: }
476: }
477: }
478: closedir(DIR);
479: my $sh;
480: if ( $sh=Apache::File->new("$target.subscription") ) {
481: &Apache::lonnet::logthis("opened $target.subscription");
482: while (my $subline=<$sh>) {
483: &Apache::lonnet::logthis("Trying $subline");
484: if ($subline =~ /(^\w+):/) {
485: if ($1 ne $Apache::lonnet::perlvar{'lonHostID'}) {
486: push(@subscribed,$1);
487: }
488: } else {
489: &Apache::lonnet::logthis("No Match for $subline");
490: }
491: }
492: } else {
493: &Apache::lonnet::logthis("Unable to open $target.subscription");
494: }
495: &Apache::lonnet::logthis("Got list of ".join(':',@subscribed));
496: return @subscribed;
497: }
498:
499:
500: #########################################
501: #########################################
502:
503: =pod
504:
505: =item B<get_max_ids_indices>
506:
507: Currently undocumented
508:
509: =cut
510:
511: #########################################
512: #########################################
513: sub get_max_ids_indices {
514: my ($content)=@_;
515: my $maxindex=10;
516: my $maxid=10;
517: my $needsfixup=0;
518:
519: my $parser=HTML::LCParser->new($content);
520: my $token;
521: while ($token=$parser->get_token) {
522: if ($token->[0] eq 'S') {
523: my $counter;
524: if ($counter=$addid{$token->[1]}) {
525: if ($counter eq 'id') {
526: if (defined($token->[2]->{'id'})) {
527: $maxid=($token->[2]->{'id'}>$maxid)?$token->[2]->{'id'}:$maxid;
528: } else {
529: $needsfixup=1;
530: }
531: } else {
532: if (defined($token->[2]->{'index'})) {
533: $maxindex=($token->[2]->{'index'}>$maxindex)?$token->[2]->{'index'}:$maxindex;
534: } else {
535: $needsfixup=1;
536: }
537: }
538: }
539: }
540: }
541: return ($needsfixup,$maxid,$maxindex);
542: }
543:
544: #########################################
545: #########################################
546:
547: =pod
548:
549: =item B<get_all_text_unbalanced>
550:
551: Currently undocumented
552:
553: =cut
554:
555: #########################################
556: #########################################
557: sub get_all_text_unbalanced {
558: #there is a copy of this in lonxml.pm
559: my($tag,$pars)= @_;
560: my $token;
561: my $result='';
562: $tag='<'.$tag.'>';
563: while ($token = $$pars[-1]->get_token) {
564: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
565: $result.=$token->[1];
566: } elsif ($token->[0] eq 'PI') {
567: $result.=$token->[2];
568: } elsif ($token->[0] eq 'S') {
569: $result.=$token->[4];
570: } elsif ($token->[0] eq 'E') {
571: $result.=$token->[2];
572: }
573: if ($result =~ /(.*)$tag(.*)/) {
574: #&Apache::lonnet::logthis('Got a winner with leftovers ::'.$2);
575: #&Apache::lonnet::logthis('Result is :'.$1);
576: $result=$1;
577: my $redo=$tag.$2;
578: push (@$pars,HTML::LCParser->new(\$redo));
579: $$pars[-1]->xml_mode('1');
580: last;
581: }
582: }
583: return $result
584: }
585:
586: #########################################
587: #########################################
588:
589: =pod
590:
591: =item B<fix_ids_and_indices>
592:
593: Currently undocumented
594:
595: =cut
596:
597: #########################################
598: #########################################
599: #Arguably this should all be done as a lonnet::ssi instead
600: sub fix_ids_and_indices {
601: my ($logfile,$source,$target)=@_;
602:
603: my %allow;
604: my $content;
605: {
606: my $org=Apache::File->new($source);
607: $content=join('',<$org>);
608: }
609:
610: my ($needsfixup,$maxid,$maxindex)=&get_max_ids_indices(\$content);
611:
612: if ($needsfixup) {
613: print $logfile "Needs ID and/or index fixup\n".
614: "Max ID : $maxid (min 10)\n".
615: "Max Index: $maxindex (min 10)\n";
616: }
617: my $outstring='';
618: my @parser;
619: $parser[0]=HTML::LCParser->new(\$content);
620: $parser[-1]->xml_mode(1);
621: my $token;
622: while (@parser) {
623: while ($token=$parser[-1]->get_token) {
624: if ($token->[0] eq 'S') {
625: my $counter;
626: my $tag=$token->[1];
627: my $lctag=lc($tag);
628: if ($lctag eq 'allow') {
629: $allow{$token->[2]->{'src'}}=1;
630: next;
631: }
632: my %parms=%{$token->[2]};
633: $counter=$addid{$tag};
634: if (!$counter) { $counter=$addid{$lctag}; }
635: if ($counter) {
636: if ($counter eq 'id') {
637: unless (defined($parms{'id'})) {
638: $maxid++;
639: $parms{'id'}=$maxid;
640: print $logfile 'ID: '.$tag.':'.$maxid."\n";
641: }
642: } elsif ($counter eq 'index') {
643: unless (defined($parms{'index'})) {
644: $maxindex++;
645: $parms{'index'}=$maxindex;
646: print $logfile 'Index: '.$tag.':'.$maxindex."\n";
647: }
648: }
649: }
650: foreach my $type ('src','href','background','bgimg') {
651: foreach my $key (keys(%parms)) {
652: if ($key =~ /^$type$/i) {
653: $parms{$key}=&set_allow(\%allow,$logfile,
654: $target,$tag,
655: $parms{$key});
656: }
657: }
658: }
659: # probably a <randomlabel> image type <label>
660: if ($lctag eq 'label' && defined($parms{'description'})) {
661: my $next_token=$parser[-1]->get_token();
662: if ($next_token->[0] eq 'T') {
663: $next_token->[1]=&set_allow(\%allow,$logfile,
664: $target,$tag,
665: $next_token->[1]);
666: }
667: $parser[-1]->unget_token($next_token);
668: }
669: if ($lctag eq 'applet') {
670: my $codebase='';
671: if (defined($parms{'codebase'})) {
672: my $oldcodebase=$parms{'codebase'};
673: unless ($oldcodebase=~/\/$/) {
674: $oldcodebase.='/';
675: }
676: $codebase=&urlfixup($oldcodebase,$target);
677: $codebase=~s/\/$//;
678: if ($codebase ne $oldcodebase) {
679: $parms{'codebase'}=$codebase;
680: print $logfile 'URL codebase: '.$tag.':'.
681: $oldcodebase.' - '.
682: $codebase."\n";
683: }
684: $allow{&absoluteurl($codebase,$target).'/*'}=1;
685: } else {
686: foreach ('archive','code','object') {
687: if (defined($parms{$_})) {
688: my $oldurl=$parms{$_};
689: my $newurl=&urlfixup($oldurl,$target);
690: $newurl=~s/\/[^\/]+$/\/\*/;
691: print $logfile 'Allow: applet '.$_.':'.
692: $oldurl.' allows '.
693: $newurl."\n";
694: $allow{&absoluteurl($newurl,$target)}=1;
695: }
696: }
697: }
698: }
699: my $newparmstring='';
700: my $endtag='';
701: foreach (keys %parms) {
702: if ($_ eq '/') {
703: $endtag=' /';
704: } else {
705: my $quote=($parms{$_}=~/\"/?"'":'"');
706: $newparmstring.=' '.$_.'='.$quote.$parms{$_}.$quote;
707: }
708: }
709: if (!$endtag) { if ($token->[4]=~m:/>$:) { $endtag=' /'; }; }
710: $outstring.='<'.$tag.$newparmstring.$endtag.'>';
711: if ($lctag eq 'm') {
712: $outstring.=&get_all_text_unbalanced('/m',\@parser);
713: }
714: } elsif ($token->[0] eq 'E') {
715: if ($token->[2]) {
716: unless ($token->[1] eq 'allow') {
717: $outstring.='</'.$token->[1].'>';
718: }
719: }
720: } else {
721: $outstring.=$token->[1];
722: }
723: }
724: pop(@parser);
725: }
726:
727: if ($needsfixup) {
728: print $logfile "End of ID and/or index fixup\n".
729: "Max ID : $maxid (min 10)\n".
730: "Max Index: $maxindex (min 10)\n";
731: } else {
732: print $logfile "Does not need ID and/or index fixup\n";
733: }
734:
735: return ($outstring,%allow);
736: }
737:
738: #########################################
739: #########################################
740:
741: =pod
742:
743: =item B<store_metadata>
744:
745: Store the metadata in the metadata table in the loncapa database.
746: Uses lonmysql to access the database.
747:
748: Inputs: \%metadata
749:
750: Returns: (error,status). error is undef on success, status is undef on error.
751:
752: =cut
753:
754: #########################################
755: #########################################
756: sub store_metadata {
757: my %metadata = %{shift()};
758: my $error;
759: # Determine if the table exists
760: my $status = &Apache::lonmysql::check_table('metadata');
761: if (! defined($status)) {
762: $error='<font color="red">WARNING: Cannot connect to '.
763: 'database!</font>';
764: &Apache::lonnet::logthis($error);
765: return ($error,undef);
766: }
767: if ($status == 0) {
768: # It would be nice to actually create the table....
769: $error ='<font color="red">WARNING: The metadata table does not '.
770: 'exist in the LON-CAPA database.</font>';
771: &Apache::lonnet::logthis($error);
772: return ($error,undef);
773: }
774: # Remove old value from table
775: $status = &Apache::lonmysql::remove_from_table
776: ('metadata','url',$metadata{'url'});
777: if (! defined($status)) {
778: $error = '<font color="red">Error when removing old values from '.
779: 'metadata table in LON-CAPA database.</font>';
780: &Apache::lonnet::logthis($error);
781: return ($error,undef);
782: }
783: # Store data in table.
784: $status = &Apache::lonmysql::store_row('metadata',\%metadata);
785: if (! defined($status)) {
786: $error='<font color="red">Error occured storing new values in '.
787: 'metadata table in LON-CAPA database</font>';
788: &Apache::lonnet::logthis($error);
789: return ($error,undef);
790: }
791: return (undef,$status);
792: }
793:
794: #########################################
795: #########################################
796:
797: =pod
798:
799: =item B<publish>
800:
801: This is the workhorse function of this module. This subroutine generates
802: backup copies, performs any automatic processing (prior to publication,
803: especially for rat and ssi files),
804:
805: I<Additional documentation needed.>
806:
807: =cut
808:
809: #########################################
810: #########################################
811: sub publish {
812:
813: my ($source,$target,$style,$batch)=@_;
814: my $logfile;
815: my $scrout='';
816: my $allmeta='';
817: my $content='';
818: my %allow=();
819:
820: unless ($logfile=Apache::File->new('>>'.$source.'.log')) {
821: return
822: '<font color=red>No write permission to user directory, FAIL</font>';
823: }
824: print $logfile
825: "\n\n================= Publish ".localtime()." Phase One ================\n";
826:
827: if (($style eq 'ssi') || ($style eq 'rat')) {
828: # ------------------------------------------------------- This needs processing
829:
830: # ----------------------------------------------------------------- Backup Copy
831: my $copyfile=$source.'.save';
832: if (copy($source,$copyfile)) {
833: print $logfile "Copied original file to ".$copyfile."\n";
834: } else {
835: print $logfile "Unable to write backup ".$copyfile.':'.$!."\n";
836: return "<font color=red>Failed to write backup copy, $!,FAIL</font>";
837: }
838: # ------------------------------------------------------------- IDs and indices
839:
840: my $outstring;
841: ($outstring,%allow)=&fix_ids_and_indices($logfile,$source,$target);
842: # ------------------------------------------------------------ Construct Allows
843:
844: $scrout.='<h3>Dependencies</h3>';
845: my $allowstr='';
846: foreach (sort(keys(%allow))) {
847: my $thisdep=$_;
848: if ($thisdep !~ /[^\s]/) { next; }
849: unless ($style eq 'rat') {
850: $allowstr.="\n".'<allow src="'.$thisdep.'" />';
851: }
852: $scrout.='<br>';
853: unless ($thisdep=~/\*/) {
854: $scrout.='<a href="'.$thisdep.'">';
855: }
856: $scrout.='<tt>'.$thisdep.'</tt>';
857: unless ($thisdep=~/\*/) {
858: $scrout.='</a>';
859: if (
860: &Apache::lonnet::getfile($Apache::lonnet::perlvar{'lonDocRoot'}.'/'.
861: $thisdep.'.meta') eq '-1') {
862: $scrout.= ' - <font color="red">Currently not available'.
863: '</font>';
864: } else {
865: my %temphash=(&Apache::lonnet::declutter($target).'___'.
866: &Apache::lonnet::declutter($thisdep).'___usage'
867: => time);
868: $thisdep=~/^\/res\/(\w+)\/(\w+)\//;
869: if ((defined($1)) && (defined($2))) {
870: &Apache::lonnet::put('nohist_resevaldata',\%temphash,
871: $1,$2);
872: }
873: }
874: }
875: }
876: $outstring=~s/\n*(\<\/[^\>]+\>)\s*$/$allowstr\n$1\n/s;
877:
878: #Encode any High ASCII characters
879: $outstring=&HTML::Entities::encode($outstring,"\200-\377");
880: # ------------------------------------------------------------- Write modified.
881:
882: {
883: my $org;
884: unless ($org=Apache::File->new('>'.$source)) {
885: print $logfile "No write permit to $source\n";
886: return
887: '<font color="red">No write permission to '.$source.
888: ', FAIL</font>';
889: }
890: print($org $outstring);
891: }
892: $content=$outstring;
893:
894: }
895: # -------------------------------------------- Initial step done, now metadata.
896:
897: # --------------------------------------- Storage for metadata keys and fields.
898:
899: %metadatafields=();
900: %metadatakeys=();
901:
902: my %oldparmstores=();
903:
904: unless ($batch) {
905: $scrout.='<h3>Metadata Information ' .
906: Apache::loncommon::help_open_topic("Metadata_Description")
907: . '</h3>';
908: }
909:
910: # ------------------------------------------------ First, check out environment
911: unless (-e $source.'.meta') {
912: $metadatafields{'author'}=$ENV{'environment.firstname'}.' '.
913: $ENV{'environment.middlename'}.' '.
914: $ENV{'environment.lastname'}.' '.
915: $ENV{'environment.generation'};
916: $metadatafields{'author'}=~s/\s+/ /g;
917: $metadatafields{'author'}=~s/\s+$//;
918: $metadatafields{'owner'}=$cuname.'@'.$cudom;
919:
920: # ------------------------------------------------ Check out directory hierachy
921:
922: my $thisdisfn=$source;
923: $thisdisfn=~s/^\/home\/$cuname\///;
924:
925: my @urlparts=split(/\//,$thisdisfn);
926: $#urlparts--;
927:
928: my $currentpath='/home/'.$cuname.'/';
929:
930: foreach (@urlparts) {
931: $currentpath.=$_.'/';
932: $scrout.=&metaread($logfile,$currentpath.'default.meta');
933: }
934:
935: # ------------------- Clear out parameters and stores (there should not be any)
936:
937: foreach (keys %metadatafields) {
938: if (($_=~/^parameter/) || ($_=~/^stores/)) {
939: delete $metadatafields{$_};
940: }
941: }
942:
943: } else {
944: # ---------------------- Read previous metafile, remember parameters and stores
945:
946: $scrout.=&metaread($logfile,$source.'.meta');
947:
948: foreach (keys %metadatafields) {
949: if (($_=~/^parameter/) || ($_=~/^stores/)) {
950: $oldparmstores{$_}=1;
951: delete $metadatafields{$_};
952: }
953: }
954:
955: }
956:
957: # -------------------------------------------------- Parse content for metadata
958: if ($style eq 'ssi') {
959: my $oldenv=$ENV{'request.uri'};
960:
961: $ENV{'request.uri'}=$target;
962: $allmeta=Apache::lonxml::xmlparse(undef,'meta',$content);
963: $ENV{'request.uri'}=$oldenv;
964:
965: &metaeval($allmeta);
966: }
967: # ---------------- Find and document discrepancies in the parameters and stores
968:
969: my $chparms='';
970: foreach (sort keys %metadatafields) {
971: if (($_=~/^parameter/) || ($_=~/^stores/)) {
972: unless ($_=~/\.\w+$/) {
973: unless ($oldparmstores{$_}) {
974: print $logfile 'New: '.$_."\n";
975: $chparms.=$_.' ';
976: }
977: }
978: }
979: }
980: if ($chparms) {
981: $scrout.='<p><b>New parameters or stored values:</b> '.
982: $chparms;
983: }
984:
985: $chparms='';
986: foreach (sort keys %oldparmstores) {
987: if (($_=~/^parameter/) || ($_=~/^stores/)) {
988: unless (($metadatafields{$_.'.name'}) ||
989: ($metadatafields{$_.'.package'}) || ($_=~/\.\w+$/)) {
990: print $logfile 'Obsolete: '.$_."\n";
991: $chparms.=$_.' ';
992: }
993: }
994: }
995: if ($chparms) {
996: $scrout.='<p><b>Obsolete parameters or stored values:</b> '.
997: $chparms;
998: }
999:
1000: # ------------------------------------------------------- Now have all metadata
1001:
1002: my %keywords=();
1003:
1004: if (length($content)<500000) {
1005: my $textonly=$content;
1006: $textonly=~s/\<script[^\<]+\<\/script\>//g;
1007: $textonly=~s/\<m\>[^\<]+\<\/m\>//g;
1008: $textonly=~s/\<[^\>]*\>//g;
1009: $textonly=~tr/A-Z/a-z/;
1010: $textonly=~s/[\$\&][a-z]\w*//g;
1011: $textonly=~s/[^a-z\s]//g;
1012:
1013: foreach ($textonly=~m/(\w+)/g) {
1014: unless ($nokey{$_}) {
1015: $keywords{$_}=1;
1016: }
1017: }
1018: }
1019:
1020:
1021: foreach (split(/\W+/,$metadatafields{'keywords'})) {
1022: $keywords{$_}=1;
1023: }
1024: # --------------------------------------------------- Now we also have keywords
1025: # =============================================================================
1026: # INTERACTIVE MODE
1027: #
1028: unless ($batch) {
1029: $scrout.=
1030: '<form name="pubform" action="/adm/publish" method="post">'.
1031: '<p><input type="submit" value="Finalize Publication" /></p>'.
1032: &hiddenfield('phase','two').
1033: &hiddenfield('filename',$ENV{'form.filename'}).
1034: &hiddenfield('allmeta',&Apache::lonnet::escape($allmeta)).
1035: &hiddenfield('dependencies',join(',',keys %allow)).
1036: &textfield('Title','title',$metadatafields{'title'}).
1037: &textfield('Author(s)','author',$metadatafields{'author'}).
1038: &textfield('Subject','subject',$metadatafields{'subject'});
1039:
1040: # --------------------------------------------------- Scan content for keywords
1041:
1042: my $keywords_help = Apache::loncommon::help_open_topic("Publishing_Keywords");
1043: my $keywordout=<<"END";
1044: <script>
1045: function checkAll(field)
1046: {
1047: for (i = 0; i < field.length; i++)
1048: field[i].checked = true ;
1049: }
1050:
1051: function uncheckAll(field)
1052: {
1053: for (i = 0; i < field.length; i++)
1054: field[i].checked = false ;
1055: }
1056: </script>
1057: <p><b>Keywords: $keywords_help</b>
1058: <input type="button" value="check all" onclick="javascript:checkAll(document.pubform.keywords)">
1059: <input type="button" value="uncheck all" onclick="javascript:uncheckAll(document.pubform.keywords)">
1060: <br />
1061: END
1062: $keywordout.='<table border=2><tr>';
1063: my $colcount=0;
1064:
1065: foreach (sort keys %keywords) {
1066: $keywordout.='<td><input type=checkbox name="keywords" value="'.$_.'"';
1067: if ($metadatafields{'keywords'}) {
1068: if ($metadatafields{'keywords'}=~/$_/) {
1069: $keywordout.=' checked';
1070: }
1071: } elsif (&Apache::loncommon::keyword($_)) {
1072: $keywordout.=' checked';
1073: }
1074: $keywordout.='>'.$_.'</td>';
1075: if ($colcount>10) {
1076: $keywordout.="</tr><tr>\n";
1077: $colcount=0;
1078: }
1079: $colcount++;
1080: }
1081:
1082: $keywordout.='</tr></table>';
1083:
1084: $scrout.=$keywordout;
1085:
1086: $scrout.=&textfield('Additional Keywords','addkey','');
1087:
1088: $scrout.=&textfield('Notes','notes',$metadatafields{'notes'});
1089:
1090: $scrout.=
1091: '<p><b>Abstract:</b><br><textarea cols=80 rows=5 name=abstract>'.
1092: $metadatafields{'abstract'}.'</textarea>';
1093:
1094: $source=~/\.(\w+)$/;
1095:
1096: $scrout.=&hiddenfield('mime',$1);
1097:
1098: $scrout.=&selectbox('Language','language',
1099: $metadatafields{'language'},
1100: \&Apache::loncommon::languagedescription,
1101: (&Apache::loncommon::languageids),
1102: );
1103:
1104: unless ($metadatafields{'creationdate'}) {
1105: $metadatafields{'creationdate'}=time;
1106: }
1107: $scrout.=&hiddenfield('creationdate',$metadatafields{'creationdate'});
1108:
1109: $scrout.=&hiddenfield('lastrevisiondate',time);
1110:
1111:
1112: $scrout.=&textfield('Publisher/Owner','owner',
1113: $metadatafields{'owner'});
1114:
1115: # -------------------------------------------------- Correct copyright for rat.
1116: if ($style eq 'rat') {
1117: if ($metadatafields{'copyright'} eq 'public') {
1118: delete $metadatafields{'copyright'};
1119: }
1120: $scrout.=&selectbox('Copyright/Distribution','copyright',
1121: $metadatafields{'copyright'},
1122: \&Apache::loncommon::copyrightdescription,
1123: (grep !/^public$/,(&Apache::loncommon::copyrightids)));
1124: }
1125: else {
1126: $scrout.=&selectbox('Copyright/Distribution','copyright',
1127: $metadatafields{'copyright'},
1128: \&Apache::loncommon::copyrightdescription,
1129: (&Apache::loncommon::copyrightids));
1130: }
1131:
1132: my $copyright_help =
1133: Apache::loncommon::help_open_topic('Publishing_Copyright');
1134: $scrout =~ s/DISTRIBUTION:/'DISTRIBUTION: ' . $copyright_help/ge;
1135: return $scrout.
1136: '<p><input type="submit" value="Finalize Publication" /></p></form>';
1137: # =============================================================================
1138: # BATCH MODE
1139: #
1140: } else {
1141: # Transfer metadata directly to environment for stage 2
1142: foreach (keys %metadatafields) {
1143: $ENV{'form.'.$_}=$metadatafields{$_};
1144: }
1145: $ENV{'form.addkey'}='';
1146: $ENV{'form.keywords'}='';
1147: foreach (keys %keywords) {
1148: if ($metadatafields{'keywords'}) {
1149: if ($metadatafields{'keywords'}=~/$_/) {
1150: $ENV{'form.keywords'}.=$_.',';
1151: }
1152: } elsif (&Apache::loncommon::keyword($_)) {
1153: $ENV{'form.keywords'}.=$_.',';
1154: }
1155: }
1156: $ENV{'form.keywords'}=~s/\,$//;
1157: unless ($ENV{'form.creationdate'}) { $ENV{'form.creationdate'}=time; }
1158: $ENV{'form.lastrevisiondate'}=time;
1159: if ((($style eq 'rat') && ($ENV{'form.copyright'} eq 'public')) ||
1160: (!$ENV{'form.copyright'})) {
1161: $ENV{'form.copyright'}='default';
1162: }
1163: $ENV{'form.allmeta'}=&Apache::lonnet::escape($allmeta);
1164: return $scrout;
1165: }
1166: }
1167:
1168: #########################################
1169: #########################################
1170:
1171: =pod
1172:
1173: =item B<phasetwo>
1174:
1175: Render second interface showing status of publication steps.
1176: This is publication step two.
1177:
1178: Parameters:
1179:
1180: =over 4
1181:
1182: =item I<$source>
1183:
1184: =item I<$target>
1185:
1186: =item I<$style>
1187:
1188: =item I<$distarget>
1189:
1190: =back
1191:
1192: Returns:
1193:
1194: =over 4
1195:
1196: =item Scalar string
1197:
1198: String contains status (errors and warnings) and information associated with
1199: the server's attempts at publication.
1200:
1201: =cut
1202:
1203: #'stupid emacs
1204: #########################################
1205: #########################################
1206: sub phasetwo {
1207:
1208: my ($r,$source,$target,$style,$distarget,$batch)=@_;
1209: my $logfile;
1210: unless ($logfile=Apache::File->new('>>'.$source.'.log')) {
1211: return
1212: '<font color=red>No write permission to user directory, FAIL</font>';
1213: }
1214: print $logfile
1215: "\n================= Publish ".localtime()." Phase Two ================\n";
1216:
1217: %metadatafields=();
1218: %metadatakeys=();
1219:
1220: &metaeval(&Apache::lonnet::unescape($ENV{'form.allmeta'}));
1221:
1222: $metadatafields{'title'}=$ENV{'form.title'};
1223: $metadatafields{'author'}=$ENV{'form.author'};
1224: $metadatafields{'subject'}=$ENV{'form.subject'};
1225: $metadatafields{'notes'}=$ENV{'form.notes'};
1226: $metadatafields{'abstract'}=$ENV{'form.abstract'};
1227: $metadatafields{'mime'}=$ENV{'form.mime'};
1228: $metadatafields{'language'}=$ENV{'form.language'};
1229: $metadatafields{'creationdate'}=
1230: &sqltime($ENV{'form.creationdate'});
1231: $metadatafields{'lastrevisiondate'}=
1232: &sqltime($ENV{'form.lastrevisiondate'});
1233: $metadatafields{'owner'}=$ENV{'form.owner'};
1234: $metadatafields{'copyright'}=$ENV{'form.copyright'};
1235: $metadatafields{'dependencies'}=$ENV{'form.dependencies'};
1236:
1237: my $allkeywords=$ENV{'form.addkey'};
1238: if (exists($ENV{'form.keywords'})) {
1239: if (ref($ENV{'form.keywords'})) {
1240: $allkeywords .= ','.join(',',@{$ENV{'form.keywords'}});
1241: } else {
1242: $allkeywords .= ','.$ENV{'form.keywords'};
1243: }
1244: }
1245: $allkeywords=~s/\W+/\,/;
1246: $allkeywords=~s/^\,//;
1247: $metadatafields{'keywords'}=$allkeywords;
1248:
1249: {
1250: print $logfile "\nWrite metadata file for ".$source;
1251: my $mfh;
1252: unless ($mfh=Apache::File->new('>'.$source.'.meta')) {
1253: return
1254: '<font color=red>Could not write metadata, FAIL</font>';
1255: }
1256: foreach (sort keys %metadatafields) {
1257: unless ($_=~/\./) {
1258: my $unikey=$_;
1259: $unikey=~/^([A-Za-z]+)/;
1260: my $tag=$1;
1261: $tag=~tr/A-Z/a-z/;
1262: print $mfh "\n\<$tag";
1263: foreach (split(/\,/,$metadatakeys{$unikey})) {
1264: my $value=$metadatafields{$unikey.'.'.$_};
1265: $value=~s/\"/\'\'/g;
1266: print $mfh ' '.$_.'="'.$value.'"';
1267: }
1268: print $mfh '>'.
1269: &HTML::Entities::encode($metadatafields{$unikey})
1270: .'</'.$tag.'>';
1271: }
1272: }
1273: $r->print('<p>Wrote Metadata');
1274: print $logfile "\nWrote metadata";
1275: }
1276:
1277: # -------------------------------- Synchronize entry with SQL metadata database
1278:
1279: $metadatafields{'url'} = $distarget;
1280: $metadatafields{'version'} = 'current';
1281: unless ($metadatafields{'copyright'} eq 'priv') {
1282: my ($error,$success) = &store_metadata(\%metadatafields);
1283: if ($success) {
1284: $r->print('<p>Synchronized SQL metadata database');
1285: print $logfile "\nSynchronized SQL metadata database";
1286: } else {
1287: $r->print($error);
1288: print $logfile "\n".$error;
1289: }
1290: } else {
1291: $r->print('<p>Private Publication - did not synchronize database');
1292: print $logfile "\nPrivate: Did not synchronize data into ".
1293: "SQL metadata database";
1294: }
1295: # ----------------------------------------------------------- Copy old versions
1296:
1297: if (-e $target) {
1298: my $filename;
1299: my $maxversion=0;
1300: $target=~/(.*)\/([^\/]+)\.(\w+)$/;
1301: my $srcf=$2;
1302: my $srct=$3;
1303: my $srcd=$1;
1304: unless ($srcd=~/^\/home\/httpd\/html\/res/) {
1305: print $logfile "\nPANIC: Target dir is ".$srcd;
1306: return "<font color=red>Invalid target directory, FAIL</font>";
1307: }
1308: opendir(DIR,$srcd);
1309: while ($filename=readdir(DIR)) {
1310: if (-l $srcd.'/'.$filename) {
1311: unlink($srcd.'/'.$filename);
1312: unlink($srcd.'/'.$filename.'.meta');
1313: } else {
1314: if ($filename=~/$srcf\.(\d+)\.$srct$/) {
1315: $maxversion=($1>$maxversion)?$1:$maxversion;
1316: }
1317: }
1318: }
1319: closedir(DIR);
1320: $maxversion++;
1321: $r->print('<p>Creating old version '.$maxversion);
1322: print $logfile "\nCreating old version ".$maxversion;
1323:
1324: my $copyfile=$srcd.'/'.$srcf.'.'.$maxversion.'.'.$srct;
1325:
1326: if (copy($target,$copyfile)) {
1327: print $logfile "Copied old target to ".$copyfile."\n";
1328: $r->print('<p>Copied old target file');
1329: } else {
1330: print $logfile "Unable to write ".$copyfile.':'.$!."\n";
1331: return "<font color=red>Failed to copy old target, $!, FAIL</font>";
1332: }
1333:
1334: # --------------------------------------------------------------- Copy Metadata
1335:
1336: $copyfile=$copyfile.'.meta';
1337:
1338: if (copy($target.'.meta',$copyfile)) {
1339: print $logfile "Copied old target metadata to ".$copyfile."\n";
1340: $r->print('<p>Copied old metadata')
1341: } else {
1342: print $logfile "Unable to write metadata ".$copyfile.':'.$!."\n";
1343: if (-e $target.'.meta') {
1344: return
1345: "<font color=red>Failed to write old metadata copy, $!, FAIL</font>";
1346: }
1347: }
1348:
1349:
1350: } else {
1351: $r->print('<p>Initial version');
1352: print $logfile "\nInitial version";
1353: }
1354:
1355: # ---------------------------------------------------------------- Write Source
1356: my $copyfile=$target;
1357:
1358: my @parts=split(/\//,$copyfile);
1359: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
1360:
1361: my $count;
1362: for ($count=5;$count<$#parts;$count++) {
1363: $path.="/$parts[$count]";
1364: if ((-e $path)!=1) {
1365: print $logfile "\nCreating directory ".$path;
1366: $r->print('<p>Created directory '.$parts[$count]);
1367: mkdir($path,0777);
1368: }
1369: }
1370:
1371: if (copy($source,$copyfile)) {
1372: print $logfile "\nCopied original source to ".$copyfile."\n";
1373: $r->print('<p>Copied source file');
1374: } else {
1375: print $logfile "\nUnable to write ".$copyfile.':'.$!."\n";
1376: return "<font color=red>Failed to copy source, $!, FAIL</font>";
1377: }
1378:
1379: # --------------------------------------------------------------- Copy Metadata
1380:
1381: $copyfile=$copyfile.'.meta';
1382:
1383: if (copy($source.'.meta',$copyfile)) {
1384: print $logfile "\nCopied original metadata to ".$copyfile."\n";
1385: $r->print('<p>Copied metadata');
1386: } else {
1387: print $logfile "\nUnable to write metadata ".$copyfile.':'.$!."\n";
1388: return
1389: "<font color=red>Failed to write metadata copy, $!, FAIL</font>";
1390: }
1391: $r->rflush;
1392: # --------------------------------------------------- Send update notifications
1393:
1394: my @subscribed=&get_subscribed_hosts($target);
1395: foreach my $subhost (@subscribed) {
1396: $r->print('<p>Notifying host '.$subhost.':');$r->rflush;
1397: print $logfile "\nNotifying host ".$subhost.':';
1398: my $reply=&Apache::lonnet::critical('update:'.$target,$subhost);
1399: $r->print($reply);$r->rflush;
1400: print $logfile $reply;
1401: }
1402:
1403: # ---------------------------------------- Send update notifications, meta only
1404:
1405: my @subscribedmeta=&get_subscribed_hosts("$target.meta");
1406: foreach my $subhost (@subscribedmeta) {
1407: $r->print('<p>Notifying host for metadata only '.$subhost.':');$r->rflush;
1408: print $logfile "\nNotifying host for metadata only ".$subhost.':';
1409: my $reply=&Apache::lonnet::critical('update:'.$target.'.meta',
1410: $subhost);
1411: $r->print($reply);$r->rflush;
1412: print $logfile $reply;
1413: }
1414:
1415: # ------------------------------------------------ Provide link to new resource
1416: unless ($batch) {
1417: my $thisdistarget=$target;
1418: $thisdistarget=~s/^$docroot//;
1419:
1420: my $thissrc=$source;
1421: $thissrc=~s/^\/home\/(\w+)\/public_html/\/priv\/$1/;
1422:
1423: my $thissrcdir=$thissrc;
1424: $thissrcdir=~s/\/[^\/]+$/\//;
1425:
1426:
1427: $r->print(
1428: '<hr><a href="'.$thisdistarget.'"><font size="+2">'.
1429: 'View Published Version</font></a>'.
1430: '<p><a href="'.$thissrc.'"><font size=+2>Back to Source</font></a>'.
1431: '<p><a href="'.$thissrcdir.
1432: '"><font size="+2">Back to Source Directory</font></a>');
1433: }
1434: }
1435:
1436: #########################################
1437:
1438: sub batchpublish {
1439: my ($r,$srcfile,$targetfile)=@_;
1440: my $thisdisfn=$srcfile;
1441: $thisdisfn=~s/\/home\/korte\/public_html\///;
1442: $srcfile=~s/\/+/\//g;
1443:
1444: my $docroot=$r->dir_config('lonDocRoot');
1445: my $thisdistarget=$targetfile;
1446: $thisdistarget=~s/^$docroot//;
1447:
1448:
1449: undef %metadatafields;
1450: undef %metadatakeys;
1451: %metadatafields=();
1452: %metadatakeys=();
1453: $srcfile=~/\.(\w+)$/;
1454: my $thistype=$1;
1455:
1456:
1457: my $thisembstyle=&Apache::loncommon::fileembstyle($thistype);
1458:
1459: $r->print('<h2>Publishing <tt>'.$thisdisfn.'</tt></h2>');
1460:
1461: # phase one takes
1462: # my ($source,$target,$style,$batch)=@_;
1463: $r->print('<p>'.&publish($srcfile,$targetfile,$thisembstyle,1).'</p>');
1464: # phase two takes
1465: # my ($source,$target,$style,$distarget,batch)=@_;
1466: # $ENV{'form.allmeta'},$ENV{'form.title'},$ENV{'form.author'},...
1467: $r->print('<p>');
1468: &phasetwo($r,$srcfile,$targetfile,$thisembstyle,$thisdistarget,1);
1469: $r->print('</p>');
1470: return '';
1471: }
1472:
1473: #########################################
1474:
1475: sub publishdirectory {
1476: my ($r,$fn,$thisdisfn)=@_;
1477: my $resdir=
1478: $Apache::lonnet::perlvar{'lonDocRoot'}.'/res/'.$cudom.'/'.$cuname.'/'.
1479: $thisdisfn;
1480: $r->print('<h1>Directory <tt>'.$thisdisfn.'</tt></h1>'.
1481: 'Target: <tt>'.$resdir.'</tt><br />');
1482:
1483: my $dirptr=16384; # Mask indicating a directory in stat.cmode.
1484:
1485: opendir(DIR,$fn);
1486: my @files=sort(readdir(DIR));
1487: foreach my $filename (@files) {
1488: my ($cdev,$cino,$cmode,$cnlink,
1489: $cuid,$cgid,$crdev,$csize,
1490: $catime,$cmtime,$cctime,
1491: $cblksize,$cblocks)=stat($fn.'/'.$filename);
1492:
1493: my $extension='';
1494: if ($filename=~/\.(\w+)$/) { $extension=$1; }
1495: if ($cmode&$dirptr) {
1496: if (($filename!~/^\./) && ($ENV{'form.pubrec'})) {
1497: &publishdirectory($r,$fn.'/'.$filename,$thisdisfn.'/'.$filename);
1498: }
1499: } elsif ((&Apache::loncommon::fileembstyle($extension) ne 'hdn') &&
1500: ($filename!~/^[\#\.]/) && ($filename!~/\~$/)) {
1501: # find out publication status and/or exiting metadata
1502: my $publishthis=0;
1503: if (-e $resdir.'/'.$filename) {
1504: my ($rdev,$rino,$rmode,$rnlink,
1505: $ruid,$rgid,$rrdev,$rsize,
1506: $ratime,$rmtime,$rctime,
1507: $rblksize,$rblocks)=stat($resdir.'/'.$filename);
1508: if ($rmtime<$cmtime) {
1509: # previously published, modified now
1510: $publishthis=1;
1511: }
1512: } else {
1513: # never published
1514: $publishthis=1;
1515: }
1516: if ($publishthis) {
1517: &batchpublish($r,$fn.'/'.$filename,$resdir.'/'.$filename);
1518: } else {
1519: $r->print('<br />Skipping '.$filename.'<br />');
1520: }
1521: $r->rflush();
1522: }
1523: }
1524: closedir(DIR);
1525: }
1526: #########################################
1527:
1528: =pod
1529:
1530: =item B<handler>
1531:
1532: A basic outline of the handler subroutine follows.
1533:
1534: =over 4
1535:
1536: =item *
1537:
1538: Get query string for limited number of parameters.
1539:
1540: =item *
1541:
1542: Check filename.
1543:
1544: =item *
1545:
1546: File is there and owned, init lookup tables.
1547:
1548: =item *
1549:
1550: Start page output.
1551:
1552: =item *
1553:
1554: Evaluate individual file, and then output information.
1555:
1556: =item *
1557:
1558: Publishing from $thisfn to $thistarget with $thisembstyle.
1559:
1560: =back
1561:
1562: =cut
1563:
1564: #########################################
1565: #########################################
1566: sub handler {
1567: my $r=shift;
1568:
1569: if ($r->header_only) {
1570: $r->content_type('text/html');
1571: $r->send_http_header;
1572: return OK;
1573: }
1574:
1575: # Get query string for limited number of parameters
1576:
1577: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1578: ['filename']);
1579:
1580: # -------------------------------------------------------------- Check filename
1581:
1582: my $fn=$ENV{'form.filename'};
1583:
1584:
1585: unless ($fn) {
1586: $r->log_reason($cuname.' at '.$cudom.
1587: ' trying to publish empty filename', $r->filename);
1588: return HTTP_NOT_FOUND;
1589: }
1590:
1591: ($cuname,$cudom)=
1592: &Apache::loncacc::constructaccess($fn,$r->dir_config('lonDefDomain'));
1593: unless (($cuname) && ($cudom)) {
1594: $r->log_reason($cuname.' at '.$cudom.
1595: ' trying to publish file '.$ENV{'form.filename'}.
1596: ' ('.$fn.') - not authorized',
1597: $r->filename);
1598: return HTTP_NOT_ACCEPTABLE;
1599: }
1600:
1601: unless (&Apache::lonnet::homeserver($cuname,$cudom)
1602: eq $r->dir_config('lonHostID')) {
1603: $r->log_reason($cuname.' at '.$cudom.
1604: ' trying to publish file '.$ENV{'form.filename'}.
1605: ' ('.$fn.') - not homeserver ('.
1606: &Apache::lonnet::homeserver($cuname,$cudom).')',
1607: $r->filename);
1608: return HTTP_NOT_ACCEPTABLE;
1609: }
1610:
1611: $fn=~s/^http\:\/\/[^\/]+//;
1612: $fn=~s/^\/\~(\w+)/\/home\/$1\/public_html/;
1613:
1614: my $targetdir='';
1615: $docroot=$r->dir_config('lonDocRoot');
1616: if ($1 ne $cuname) {
1617: $r->log_reason($cuname.' at '.$cudom.
1618: ' trying to publish unowned file '.$ENV{'form.filename'}.
1619: ' ('.$fn.')',
1620: $r->filename);
1621: return HTTP_NOT_ACCEPTABLE;
1622: } else {
1623: $targetdir=$docroot.'/res/'.$cudom;
1624: }
1625:
1626:
1627: unless (-e $fn) {
1628: $r->log_reason($cuname.' at '.$cudom.
1629: ' trying to publish non-existing file '.$ENV{'form.filename'}.
1630: ' ('.$fn.')',
1631: $r->filename);
1632: return HTTP_NOT_FOUND;
1633: }
1634:
1635: unless ($ENV{'form.phase'} eq 'two') {
1636:
1637: # -------------------------------- File is there and owned, init lookup tables.
1638:
1639: %addid=();
1640:
1641: {
1642: my $fh=Apache::File->new($r->dir_config('lonTabDir').'/addid.tab');
1643: while (<$fh>=~/(\w+)\s+(\w+)/) {
1644: $addid{$1}=$2;
1645: }
1646: }
1647:
1648: %nokey=();
1649:
1650: {
1651: my $fh=Apache::File->new($r->dir_config('lonIncludes').'/un_keyword.tab');
1652: while (<$fh>) {
1653: my $word=$_;
1654: chomp($word);
1655: $nokey{$word}=1;
1656: }
1657: }
1658:
1659: }
1660:
1661: # ---------------------------------------------------------- Start page output.
1662:
1663: $r->content_type('text/html');
1664: $r->send_http_header;
1665:
1666: $r->print('<html><head><title>LON-CAPA Publishing</title></head>');
1667: $r->print(&Apache::loncommon::bodytag('Resource Publication'));
1668: my $thisfn=$fn;
1669:
1670: my $thistarget=$thisfn;
1671:
1672: $thistarget=~s/^\/home/$targetdir/;
1673: $thistarget=~s/\/public\_html//;
1674:
1675: my $thisdistarget=$thistarget;
1676: $thisdistarget=~s/^$docroot//;
1677:
1678: my $thisdisfn=$thisfn;
1679: $thisdisfn=~s/^\/home\/$cuname\/public_html\///;
1680:
1681: if ($fn=~/\/$/) {
1682: # -------------------------------------------------------- This is a directory
1683: &publishdirectory($r,$fn,$thisdisfn);
1684:
1685: } else {
1686: # ---------------------- Evaluate individual file, and then output information.
1687: $thisfn=~/\.(\w+)$/;
1688: my $thistype=$1;
1689: my $thisembstyle=&Apache::loncommon::fileembstyle($thistype);
1690:
1691: $r->print('<h2>Publishing '.
1692: &Apache::loncommon::filedescription($thistype).' <tt>'.
1693: '<a href="/~'.$cuname.'/'.$thisdisfn.'" target="cat">'.$thisdisfn.
1694: '</a></tt></h2><b>Target:</b> <tt>'.$thisdistarget.'</tt><p>');
1695:
1696: if (($cuname ne $ENV{'user.name'}) || ($cudom ne $ENV{'user.domain'})) {
1697: $r->print('<h3><font color="red">Co-Author: '.$cuname.' at '.$cudom.
1698: '</font></h3>');
1699: }
1700:
1701: if (&Apache::loncommon::fileembstyle($thistype) eq 'ssi') {
1702: $r->print('<br /><a href="/adm/diff?filename=/~'.$cuname.'/'.
1703: $thisdisfn.
1704: '&versionone=priv" target="cat">Diffs with Current Version</a><p>');
1705: }
1706:
1707: # ------------------ Publishing from $thisfn to $thistarget with $thisembstyle.
1708:
1709: unless ($ENV{'form.phase'} eq 'two') {
1710: $r->print(
1711: '<hr />'.&publish($thisfn,$thistarget,$thisembstyle));
1712: } else {
1713: $r->print('<hr />');
1714: &phasetwo($r,$thisfn,$thistarget,$thisembstyle,$thisdistarget);
1715: }
1716:
1717: }
1718: $r->print('</body></html>');
1719:
1720: return OK;
1721: }
1722:
1723: 1;
1724: __END__
1725:
1726: =pod
1727:
1728: =back
1729:
1730: =cut
1731:
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