1: # The LearningOnline Network with CAPA
2: # Publication Handler
3: #
4: # $Id: lonpublisher.pm,v 1.105 2002/10/20 18:39:36 www 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:
492: my $parser=HTML::LCParser->new($content);
493: my $token;
494: while ($token=$parser->get_token) {
495: if ($token->[0] eq 'S') {
496: my $counter;
497: if ($counter=$addid{$token->[1]}) {
498: if ($counter eq 'id') {
499: if (defined($token->[2]->{'id'})) {
500: $maxid=($token->[2]->{'id'}>$maxid)?$token->[2]->{'id'}:$maxid;
501: } else {
502: $needsfixup=1;
503: }
504: } else {
505: if (defined($token->[2]->{'index'})) {
506: $maxindex=($token->[2]->{'index'}>$maxindex)?$token->[2]->{'index'}:$maxindex;
507: } else {
508: $needsfixup=1;
509: }
510: }
511: }
512: }
513: }
514: return ($needsfixup,$maxid,$maxindex);
515: }
516:
517: #########################################
518: #########################################
519:
520: =pod
521:
522: =item B<get_all_text_unbalanced>
523:
524: Currently undocumented
525:
526: =cut
527:
528: #########################################
529: #########################################
530: sub get_all_text_unbalanced {
531: #there is a copy of this in lonxml.pm
532: my($tag,$pars)= @_;
533: my $token;
534: my $result='';
535: $tag='<'.$tag.'>';
536: while ($token = $$pars[-1]->get_token) {
537: if (($token->[0] eq 'T')||($token->[0] eq 'C')||($token->[0] eq 'D')) {
538: $result.=$token->[1];
539: } elsif ($token->[0] eq 'PI') {
540: $result.=$token->[2];
541: } elsif ($token->[0] eq 'S') {
542: $result.=$token->[4];
543: } elsif ($token->[0] eq 'E') {
544: $result.=$token->[2];
545: }
546: if ($result =~ /(.*)$tag(.*)/) {
547: #&Apache::lonnet::logthis('Got a winner with leftovers ::'.$2);
548: #&Apache::lonnet::logthis('Result is :'.$1);
549: $result=$1;
550: my $redo=$tag.$2;
551: push (@$pars,HTML::LCParser->new(\$redo));
552: $$pars[-1]->xml_mode('1');
553: last;
554: }
555: }
556: return $result
557: }
558:
559: #########################################
560: #########################################
561:
562: =pod
563:
564: =item B<fix_ids_and_indices>
565:
566: Currently undocumented
567:
568: =cut
569:
570: #########################################
571: #########################################
572: #Arguably this should all be done as a lonnet::ssi instead
573: sub fix_ids_and_indices {
574: my ($logfile,$source,$target)=@_;
575:
576: my %allow;
577: my $content;
578: {
579: my $org=Apache::File->new($source);
580: $content=join('',<$org>);
581: }
582:
583: my ($needsfixup,$maxid,$maxindex)=&get_max_ids_indices(\$content);
584:
585: if ($needsfixup) {
586: print $logfile "Needs ID and/or index fixup\n".
587: "Max ID : $maxid (min 10)\n".
588: "Max Index: $maxindex (min 10)\n";
589: }
590: my $outstring='';
591: my @parser;
592: $parser[0]=HTML::LCParser->new(\$content);
593: $parser[-1]->xml_mode(1);
594: my $token;
595: while (@parser) {
596: while ($token=$parser[-1]->get_token) {
597: if ($token->[0] eq 'S') {
598: my $counter;
599: my $tag=$token->[1];
600: my $lctag=lc($tag);
601: if ($lctag eq 'allow') {
602: $allow{$token->[2]->{'src'}}=1;
603: next;
604: }
605: my %parms=%{$token->[2]};
606: $counter=$addid{$tag};
607: if (!$counter) { $counter=$addid{$lctag}; }
608: if ($counter) {
609: if ($counter eq 'id') {
610: unless (defined($parms{'id'})) {
611: $maxid++;
612: $parms{'id'}=$maxid;
613: print $logfile 'ID: '.$tag.':'.$maxid."\n";
614: }
615: } elsif ($counter eq 'index') {
616: unless (defined($parms{'index'})) {
617: $maxindex++;
618: $parms{'index'}=$maxindex;
619: print $logfile 'Index: '.$tag.':'.$maxindex."\n";
620: }
621: }
622: }
623: foreach my $type ('src','href','background','bgimg') {
624: foreach my $key (keys(%parms)) {
625: if ($key =~ /^$type$/i) {
626: $parms{$key}=&set_allow(\%allow,$logfile,
627: $target,$tag,
628: $parms{$key});
629: }
630: }
631: }
632: # probably a <randomlabel> image type <label>
633: if ($lctag eq 'label' && defined($parms{'description'})) {
634: my $next_token=$parser[-1]->get_token();
635: if ($next_token->[0] eq 'T') {
636: $next_token->[1]=&set_allow(\%allow,$logfile,
637: $target,$tag,
638: $next_token->[1]);
639: }
640: $parser[-1]->unget_token($next_token);
641: }
642: if ($lctag eq 'applet') {
643: my $codebase='';
644: if (defined($parms{'codebase'})) {
645: my $oldcodebase=$parms{'codebase'};
646: unless ($oldcodebase=~/\/$/) {
647: $oldcodebase.='/';
648: }
649: $codebase=&urlfixup($oldcodebase,$target);
650: $codebase=~s/\/$//;
651: if ($codebase ne $oldcodebase) {
652: $parms{'codebase'}=$codebase;
653: print $logfile 'URL codebase: '.$tag.':'.
654: $oldcodebase.' - '.
655: $codebase."\n";
656: }
657: $allow{&absoluteurl($codebase,$target).'/*'}=1;
658: } else {
659: foreach ('archive','code','object') {
660: if (defined($parms{$_})) {
661: my $oldurl=$parms{$_};
662: my $newurl=&urlfixup($oldurl,$target);
663: $newurl=~s/\/[^\/]+$/\/\*/;
664: print $logfile 'Allow: applet '.$_.':'.
665: $oldurl.' allows '.
666: $newurl."\n";
667: $allow{&absoluteurl($newurl,$target)}=1;
668: }
669: }
670: }
671: }
672: my $newparmstring='';
673: my $endtag='';
674: foreach (keys %parms) {
675: if ($_ eq '/') {
676: $endtag=' /';
677: } else {
678: my $quote=($parms{$_}=~/\"/?"'":'"');
679: $newparmstring.=' '.$_.'='.$quote.$parms{$_}.$quote;
680: }
681: }
682: if (!$endtag) { if ($token->[4]=~m:/>$:) { $endtag=' /'; }; }
683: $outstring.='<'.$tag.$newparmstring.$endtag.'>';
684: if ($lctag eq 'm') {
685: $outstring.=&get_all_text_unbalanced('/m',\@parser);
686: }
687: } elsif ($token->[0] eq 'E') {
688: if ($token->[2]) {
689: unless ($token->[1] eq 'allow') {
690: $outstring.='</'.$token->[1].'>';
691: }
692: }
693: } else {
694: $outstring.=$token->[1];
695: }
696: }
697: pop(@parser);
698: }
699:
700: if ($needsfixup) {
701: print $logfile "End of ID and/or index fixup\n".
702: "Max ID : $maxid (min 10)\n".
703: "Max Index: $maxindex (min 10)\n";
704: } else {
705: print $logfile "Does not need ID and/or index fixup\n";
706: }
707:
708: return ($outstring,%allow);
709: }
710:
711: #########################################
712: #########################################
713:
714: =pod
715:
716: =item B<store_metadata>
717:
718: Store the metadata in the metadata table in the loncapa database.
719: Uses lonmysql to access the database.
720:
721: Inputs: \%metadata
722:
723: Returns: (error,status). error is undef on success, status is undef on error.
724:
725: =cut
726:
727: #########################################
728: #########################################
729: sub store_metadata {
730: my %metadata = %{shift()};
731: my $error;
732: # Determine if the table exists
733: my $status = &Apache::lonmysql::check_table('metadata');
734: if (! defined($status)) {
735: $error='<font color="red">WARNING: Cannot connect to '.
736: 'database!</font>';
737: &Apache::lonnet::logthis($error);
738: return ($error,undef);
739: }
740: if ($status == 0) {
741: # It would be nice to actually create the table....
742: $error ='<font color="red">WARNING: The metadata table does not '.
743: 'exist in the LON-CAPA database.</font>';
744: &Apache::lonnet::logthis($error);
745: return ($error,undef);
746: }
747: # Remove old value from table
748: $status = &Apache::lonmysql::remove_from_table
749: ('metadata','url',$metadata{'url'});
750: if (! defined($status)) {
751: $error = '<font color="red">Error when removing old values from '.
752: 'metadata table in LON-CAPA database.</font>';
753: &Apache::lonnet::logthis($error);
754: return ($error,undef);
755: }
756: # Store data in table.
757: $status = &Apache::lonmysql::store_row('metadata',\%metadata);
758: if (! defined($status)) {
759: $error='<font color="red">Error occured storing new values in '.
760: 'metadata table in LON-CAPA database</font>';
761: &Apache::lonnet::logthis($error);
762: return ($error,undef);
763: }
764: return (undef,$status);
765: }
766:
767: #########################################
768: #########################################
769:
770: =pod
771:
772: =item B<publish>
773:
774: This is the workhorse function of this module. This subroutine generates
775: backup copies, performs any automatic processing (prior to publication,
776: especially for rat and ssi files),
777:
778: I<Additional documentation needed.>
779:
780: =cut
781:
782: #########################################
783: #########################################
784: sub publish {
785:
786: my ($source,$target,$style,$batch)=@_;
787: my $logfile;
788: my $scrout='';
789: my $allmeta='';
790: my $content='';
791: my %allow=();
792:
793: unless ($logfile=Apache::File->new('>>'.$source.'.log')) {
794: return
795: '<font color=red>No write permission to user directory, FAIL</font>';
796: }
797: print $logfile
798: "\n\n================= Publish ".localtime()." Phase One ================\n";
799:
800: if (($style eq 'ssi') || ($style eq 'rat')) {
801: # ------------------------------------------------------- This needs processing
802:
803: # ----------------------------------------------------------------- Backup Copy
804: my $copyfile=$source.'.save';
805: if (copy($source,$copyfile)) {
806: print $logfile "Copied original file to ".$copyfile."\n";
807: } else {
808: print $logfile "Unable to write backup ".$copyfile.':'.$!."\n";
809: return "<font color=red>Failed to write backup copy, $!,FAIL</font>";
810: }
811: # ------------------------------------------------------------- IDs and indices
812:
813: my $outstring;
814: ($outstring,%allow)=&fix_ids_and_indices($logfile,$source,$target);
815: # ------------------------------------------------------------ Construct Allows
816:
817: $scrout.='<h3>Dependencies</h3>';
818: my $allowstr='';
819: foreach (sort(keys(%allow))) {
820: my $thisdep=$_;
821: if ($thisdep !~ /[^\s]/) { next; }
822: unless ($style eq 'rat') {
823: $allowstr.="\n".'<allow src="'.$thisdep.'" />';
824: }
825: $scrout.='<br>';
826: unless ($thisdep=~/\*/) {
827: $scrout.='<a href="'.$thisdep.'">';
828: }
829: $scrout.='<tt>'.$thisdep.'</tt>';
830: unless ($thisdep=~/\*/) {
831: $scrout.='</a>';
832: if (
833: &Apache::lonnet::getfile($Apache::lonnet::perlvar{'lonDocRoot'}.'/'.
834: $thisdep.'.meta') eq '-1') {
835: $scrout.= ' - <font color="red">Currently not available'.
836: '</font>';
837: } else {
838: my %temphash=(&Apache::lonnet::declutter($target).'___'.
839: &Apache::lonnet::declutter($thisdep).'___usage'
840: => time);
841: $thisdep=~/^\/res\/(\w+)\/(\w+)\//;
842: if ((defined($1)) && (defined($2))) {
843: &Apache::lonnet::put('nohist_resevaldata',\%temphash,
844: $1,$2);
845: }
846: }
847: }
848: }
849: $outstring=~s/\n*(\<\/[^\>]+\>)\s*$/$allowstr\n$1\n/s;
850:
851: #Encode any High ASCII characters
852: $outstring=&HTML::Entities::encode($outstring,"\200-\377");
853: # ------------------------------------------------------------- Write modified.
854:
855: {
856: my $org;
857: unless ($org=Apache::File->new('>'.$source)) {
858: print $logfile "No write permit to $source\n";
859: return
860: '<font color="red">No write permission to '.$source.
861: ', FAIL</font>';
862: }
863: print($org $outstring);
864: }
865: $content=$outstring;
866:
867: }
868: # -------------------------------------------- Initial step done, now metadata.
869:
870: # --------------------------------------- Storage for metadata keys and fields.
871:
872: %metadatafields=();
873: %metadatakeys=();
874:
875: my %oldparmstores=();
876:
877: unless ($batch) {
878: $scrout.='<h3>Metadata Information ' .
879: Apache::loncommon::help_open_topic("Metadata_Description")
880: . '</h3>';
881: }
882:
883: # ------------------------------------------------ First, check out environment
884: unless (-e $source.'.meta') {
885: $metadatafields{'author'}=$ENV{'environment.firstname'}.' '.
886: $ENV{'environment.middlename'}.' '.
887: $ENV{'environment.lastname'}.' '.
888: $ENV{'environment.generation'};
889: $metadatafields{'author'}=~s/\s+/ /g;
890: $metadatafields{'author'}=~s/\s+$//;
891: $metadatafields{'owner'}=$cuname.'@'.$cudom;
892:
893: # ------------------------------------------------ Check out directory hierachy
894:
895: my $thisdisfn=$source;
896: $thisdisfn=~s/^\/home\/$cuname\///;
897:
898: my @urlparts=split(/\//,$thisdisfn);
899: $#urlparts--;
900:
901: my $currentpath='/home/'.$cuname.'/';
902:
903: foreach (@urlparts) {
904: $currentpath.=$_.'/';
905: $scrout.=&metaread($logfile,$currentpath.'default.meta');
906: }
907:
908: # ------------------- Clear out parameters and stores (there should not be any)
909:
910: foreach (keys %metadatafields) {
911: if (($_=~/^parameter/) || ($_=~/^stores/)) {
912: delete $metadatafields{$_};
913: }
914: }
915:
916: } else {
917: # ---------------------- Read previous metafile, remember parameters and stores
918:
919: $scrout.=&metaread($logfile,$source.'.meta');
920:
921: foreach (keys %metadatafields) {
922: if (($_=~/^parameter/) || ($_=~/^stores/)) {
923: $oldparmstores{$_}=1;
924: delete $metadatafields{$_};
925: }
926: }
927:
928: }
929:
930: # -------------------------------------------------- Parse content for metadata
931: if ($style eq 'ssi') {
932: my $oldenv=$ENV{'request.uri'};
933:
934: $ENV{'request.uri'}=$target;
935: $allmeta=Apache::lonxml::xmlparse(undef,'meta',$content);
936: $ENV{'request.uri'}=$oldenv;
937:
938: &metaeval($allmeta);
939: }
940: # ---------------- Find and document discrepancies in the parameters and stores
941:
942: my $chparms='';
943: foreach (sort keys %metadatafields) {
944: if (($_=~/^parameter/) || ($_=~/^stores/)) {
945: unless ($_=~/\.\w+$/) {
946: unless ($oldparmstores{$_}) {
947: print $logfile 'New: '.$_."\n";
948: $chparms.=$_.' ';
949: }
950: }
951: }
952: }
953: if ($chparms) {
954: $scrout.='<p><b>New parameters or stored values:</b> '.
955: $chparms;
956: }
957:
958: $chparms='';
959: foreach (sort keys %oldparmstores) {
960: if (($_=~/^parameter/) || ($_=~/^stores/)) {
961: unless (($metadatafields{$_.'.name'}) ||
962: ($metadatafields{$_.'.package'}) || ($_=~/\.\w+$/)) {
963: print $logfile 'Obsolete: '.$_."\n";
964: $chparms.=$_.' ';
965: }
966: }
967: }
968: if ($chparms) {
969: $scrout.='<p><b>Obsolete parameters or stored values:</b> '.
970: $chparms;
971: }
972:
973: # ------------------------------------------------------- Now have all metadata
974:
975: my %keywords=();
976:
977: if (length($content)<500000) {
978: my $textonly=$content;
979: $textonly=~s/\<script[^\<]+\<\/script\>//g;
980: $textonly=~s/\<m\>[^\<]+\<\/m\>//g;
981: $textonly=~s/\<[^\>]*\>//g;
982: $textonly=~tr/A-Z/a-z/;
983: $textonly=~s/[\$\&][a-z]\w*//g;
984: $textonly=~s/[^a-z\s]//g;
985:
986: foreach ($textonly=~m/(\w+)/g) {
987: unless ($nokey{$_}) {
988: $keywords{$_}=1;
989: }
990: }
991: }
992:
993:
994: foreach (split(/\W+/,$metadatafields{'keywords'})) {
995: $keywords{$_}=1;
996: }
997: # --------------------------------------------------- Now we also have keywords
998: # =============================================================================
999: # INTERACTIVE MODE
1000: #
1001: unless ($batch) {
1002: $scrout.=
1003: '<form name="pubform" action="/adm/publish" method="post">'.
1004: '<p><input type="submit" value="Finalize Publication" /></p>'.
1005: &hiddenfield('phase','two').
1006: &hiddenfield('filename',$ENV{'form.filename'}).
1007: &hiddenfield('allmeta',&Apache::lonnet::escape($allmeta)).
1008: &hiddenfield('dependencies',join(',',keys %allow)).
1009: &textfield('Title','title',$metadatafields{'title'}).
1010: &textfield('Author(s)','author',$metadatafields{'author'}).
1011: &textfield('Subject','subject',$metadatafields{'subject'});
1012:
1013: # --------------------------------------------------- Scan content for keywords
1014:
1015: my $keywords_help = Apache::loncommon::help_open_topic("Publishing_Keywords");
1016: my $keywordout=<<"END";
1017: <script>
1018: function checkAll(field)
1019: {
1020: for (i = 0; i < field.length; i++)
1021: field[i].checked = true ;
1022: }
1023:
1024: function uncheckAll(field)
1025: {
1026: for (i = 0; i < field.length; i++)
1027: field[i].checked = false ;
1028: }
1029: </script>
1030: <p><b>Keywords: $keywords_help</b>
1031: <input type="button" value="check all" onclick="javascript:checkAll(document.pubform.keywords)">
1032: <input type="button" value="uncheck all" onclick="javascript:uncheckAll(document.pubform.keywords)">
1033: <br />
1034: END
1035: $keywordout.='<table border=2><tr>';
1036: my $colcount=0;
1037:
1038: foreach (sort keys %keywords) {
1039: $keywordout.='<td><input type=checkbox name="keywords" value="'.$_.'"';
1040: if ($metadatafields{'keywords'}) {
1041: if ($metadatafields{'keywords'}=~/$_/) {
1042: $keywordout.=' checked';
1043: }
1044: } elsif (&Apache::loncommon::keyword($_)) {
1045: $keywordout.=' checked';
1046: }
1047: $keywordout.='>'.$_.'</td>';
1048: if ($colcount>10) {
1049: $keywordout.="</tr><tr>\n";
1050: $colcount=0;
1051: }
1052: $colcount++;
1053: }
1054:
1055: $keywordout.='</tr></table>';
1056:
1057: $scrout.=$keywordout;
1058:
1059: $scrout.=&textfield('Additional Keywords','addkey','');
1060:
1061: $scrout.=&textfield('Notes','notes',$metadatafields{'notes'});
1062:
1063: $scrout.=
1064: '<p><b>Abstract:</b><br><textarea cols=80 rows=5 name=abstract>'.
1065: $metadatafields{'abstract'}.'</textarea>';
1066:
1067: $source=~/\.(\w+)$/;
1068:
1069: $scrout.=&hiddenfield('mime',$1);
1070:
1071: $scrout.=&selectbox('Language','language',
1072: $metadatafields{'language'},
1073: \&Apache::loncommon::languagedescription,
1074: (&Apache::loncommon::languageids),
1075: );
1076:
1077: unless ($metadatafields{'creationdate'}) {
1078: $metadatafields{'creationdate'}=time;
1079: }
1080: $scrout.=&hiddenfield('creationdate',
1081: &Apache::loncommon::unsqltime($metadatafields{'creationdate'}));
1082:
1083: $scrout.=&hiddenfield('lastrevisiondate',time);
1084:
1085:
1086: $scrout.=&textfield('Publisher/Owner','owner',
1087: $metadatafields{'owner'});
1088:
1089: # -------------------------------------------------- Correct copyright for rat.
1090: if ($style eq 'rat') {
1091: if ($metadatafields{'copyright'} eq 'public') {
1092: delete $metadatafields{'copyright'};
1093: }
1094: $scrout.=&selectbox('Copyright/Distribution','copyright',
1095: $metadatafields{'copyright'},
1096: \&Apache::loncommon::copyrightdescription,
1097: (grep !/^public$/,(&Apache::loncommon::copyrightids)));
1098: }
1099: else {
1100: $scrout.=&selectbox('Copyright/Distribution','copyright',
1101: $metadatafields{'copyright'},
1102: \&Apache::loncommon::copyrightdescription,
1103: (&Apache::loncommon::copyrightids));
1104: }
1105:
1106: my $copyright_help =
1107: Apache::loncommon::help_open_topic('Publishing_Copyright');
1108: $scrout =~ s/DISTRIBUTION:/'DISTRIBUTION: ' . $copyright_help/ge;
1109: return $scrout.
1110: '<p><input type="submit" value="Finalize Publication" /></p></form>';
1111: # =============================================================================
1112: # BATCH MODE
1113: #
1114: } else {
1115: # Transfer metadata directly to environment for stage 2
1116: foreach (keys %metadatafields) {
1117: $ENV{'form.'.$_}=$metadatafields{$_};
1118: }
1119: $ENV{'form.addkey'}='';
1120: $ENV{'form.keywords'}='';
1121: foreach (keys %keywords) {
1122: if ($metadatafields{'keywords'}) {
1123: if ($metadatafields{'keywords'}=~/$_/) {
1124: $ENV{'form.keywords'}.=$_.',';
1125: }
1126: } elsif (&Apache::loncommon::keyword($_)) {
1127: $ENV{'form.keywords'}.=$_.',';
1128: }
1129: }
1130: $ENV{'form.keywords'}=~s/\,$//;
1131: unless ($ENV{'form.creationdate'}) { $ENV{'form.creationdate'}=time; }
1132: $ENV{'form.lastrevisiondate'}=time;
1133: if ((($style eq 'rat') && ($ENV{'form.copyright'} eq 'public')) ||
1134: (!$ENV{'form.copyright'})) {
1135: $ENV{'form.copyright'}='default';
1136: }
1137: $ENV{'form.allmeta'}=&Apache::lonnet::escape($allmeta);
1138: return $scrout;
1139: }
1140: }
1141:
1142: #########################################
1143: #########################################
1144:
1145: =pod
1146:
1147: =item B<phasetwo>
1148:
1149: Render second interface showing status of publication steps.
1150: This is publication step two.
1151:
1152: Parameters:
1153:
1154: =over 4
1155:
1156: =item I<$source>
1157:
1158: =item I<$target>
1159:
1160: =item I<$style>
1161:
1162: =item I<$distarget>
1163:
1164: =back
1165:
1166: Returns:
1167:
1168: =over 4
1169:
1170: =item Scalar string
1171:
1172: String contains status (errors and warnings) and information associated with
1173: the server's attempts at publication.
1174:
1175: =cut
1176:
1177: #'stupid emacs
1178: #########################################
1179: #########################################
1180: sub phasetwo {
1181:
1182: my ($r,$source,$target,$style,$distarget,$batch)=@_;
1183: $source=~s/\/+/\//g;
1184: $target=~s/\/+/\//g;
1185: $distarget=~s/\/+/\//g;
1186: my $logfile;
1187: unless ($logfile=Apache::File->new('>>'.$source.'.log')) {
1188: return
1189: '<font color=red>No write permission to user directory, FAIL</font>';
1190: }
1191: print $logfile
1192: "\n================= Publish ".localtime()." Phase Two ================\n";
1193:
1194: %metadatafields=();
1195: %metadatakeys=();
1196:
1197: &metaeval(&Apache::lonnet::unescape($ENV{'form.allmeta'}));
1198:
1199: $metadatafields{'title'}=$ENV{'form.title'};
1200: $metadatafields{'author'}=$ENV{'form.author'};
1201: $metadatafields{'subject'}=$ENV{'form.subject'};
1202: $metadatafields{'notes'}=$ENV{'form.notes'};
1203: $metadatafields{'abstract'}=$ENV{'form.abstract'};
1204: $metadatafields{'mime'}=$ENV{'form.mime'};
1205: $metadatafields{'language'}=$ENV{'form.language'};
1206: $metadatafields{'creationdate'}=$ENV{'form.creationdate'};
1207: $metadatafields{'lastrevisiondate'}=$ENV{'form.lastrevisiondate'};
1208: $metadatafields{'owner'}=$ENV{'form.owner'};
1209: $metadatafields{'copyright'}=$ENV{'form.copyright'};
1210: $metadatafields{'dependencies'}=$ENV{'form.dependencies'};
1211:
1212: my $allkeywords=$ENV{'form.addkey'};
1213: if (exists($ENV{'form.keywords'})) {
1214: if (ref($ENV{'form.keywords'})) {
1215: $allkeywords .= ','.join(',',@{$ENV{'form.keywords'}});
1216: } else {
1217: $allkeywords .= ','.$ENV{'form.keywords'};
1218: }
1219: }
1220: $allkeywords=~s/\W+/\,/;
1221: $allkeywords=~s/^\,//;
1222: $metadatafields{'keywords'}=$allkeywords;
1223:
1224: {
1225: print $logfile "\nWrite metadata file for ".$source;
1226: my $mfh;
1227: unless ($mfh=Apache::File->new('>'.$source.'.meta')) {
1228: return
1229: '<font color=red>Could not write metadata, FAIL</font>';
1230: }
1231: foreach (sort keys %metadatafields) {
1232: unless ($_=~/\./) {
1233: my $unikey=$_;
1234: $unikey=~/^([A-Za-z]+)/;
1235: my $tag=$1;
1236: $tag=~tr/A-Z/a-z/;
1237: print $mfh "\n\<$tag";
1238: foreach (split(/\,/,$metadatakeys{$unikey})) {
1239: my $value=$metadatafields{$unikey.'.'.$_};
1240: $value=~s/\"/\'\'/g;
1241: print $mfh ' '.$_.'="'.$value.'"';
1242: }
1243: print $mfh '>'.
1244: &HTML::Entities::encode($metadatafields{$unikey})
1245: .'</'.$tag.'>';
1246: }
1247: }
1248: $r->print('<p>Wrote Metadata');
1249: print $logfile "\nWrote metadata";
1250: }
1251:
1252: # -------------------------------- Synchronize entry with SQL metadata database
1253:
1254: $metadatafields{'url'} = $distarget;
1255: $metadatafields{'version'} = 'current';
1256: unless ($metadatafields{'copyright'} eq 'priv') {
1257: my ($error,$success) = &store_metadata(\%metadatafields);
1258: if ($success) {
1259: $r->print('<p>Synchronized SQL metadata database');
1260: print $logfile "\nSynchronized SQL metadata database";
1261: } else {
1262: $r->print($error);
1263: print $logfile "\n".$error;
1264: }
1265: } else {
1266: $r->print('<p>Private Publication - did not synchronize database');
1267: print $logfile "\nPrivate: Did not synchronize data into ".
1268: "SQL metadata database";
1269: }
1270: # ----------------------------------------------------------- Copy old versions
1271:
1272: if (-e $target) {
1273: my $filename;
1274: my $maxversion=0;
1275: $target=~/(.*)\/([^\/]+)\.(\w+)$/;
1276: my $srcf=$2;
1277: my $srct=$3;
1278: my $srcd=$1;
1279: unless ($srcd=~/^\/home\/httpd\/html\/res/) {
1280: print $logfile "\nPANIC: Target dir is ".$srcd;
1281: return "<font color=red>Invalid target directory, FAIL</font>";
1282: }
1283: opendir(DIR,$srcd);
1284: while ($filename=readdir(DIR)) {
1285: if (-l $srcd.'/'.$filename) {
1286: unlink($srcd.'/'.$filename);
1287: unlink($srcd.'/'.$filename.'.meta');
1288: } else {
1289: if ($filename=~/$srcf\.(\d+)\.$srct$/) {
1290: $maxversion=($1>$maxversion)?$1:$maxversion;
1291: }
1292: }
1293: }
1294: closedir(DIR);
1295: $maxversion++;
1296: $r->print('<p>Creating old version '.$maxversion);
1297: print $logfile "\nCreating old version ".$maxversion;
1298:
1299: my $copyfile=$srcd.'/'.$srcf.'.'.$maxversion.'.'.$srct;
1300:
1301: if (copy($target,$copyfile)) {
1302: print $logfile "Copied old target to ".$copyfile."\n";
1303: $r->print('<p>Copied old target file');
1304: } else {
1305: print $logfile "Unable to write ".$copyfile.':'.$!."\n";
1306: return "<font color=red>Failed to copy old target, $!, FAIL</font>";
1307: }
1308:
1309: # --------------------------------------------------------------- Copy Metadata
1310:
1311: $copyfile=$copyfile.'.meta';
1312:
1313: if (copy($target.'.meta',$copyfile)) {
1314: print $logfile "Copied old target metadata to ".$copyfile."\n";
1315: $r->print('<p>Copied old metadata')
1316: } else {
1317: print $logfile "Unable to write metadata ".$copyfile.':'.$!."\n";
1318: if (-e $target.'.meta') {
1319: return
1320: "<font color=red>Failed to write old metadata copy, $!, FAIL</font>";
1321: }
1322: }
1323:
1324:
1325: } else {
1326: $r->print('<p>Initial version');
1327: print $logfile "\nInitial version";
1328: }
1329:
1330: # ---------------------------------------------------------------- Write Source
1331: my $copyfile=$target;
1332:
1333: my @parts=split(/\//,$copyfile);
1334: my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
1335:
1336: my $count;
1337: for ($count=5;$count<$#parts;$count++) {
1338: $path.="/$parts[$count]";
1339: if ((-e $path)!=1) {
1340: print $logfile "\nCreating directory ".$path;
1341: $r->print('<p>Created directory '.$parts[$count]);
1342: mkdir($path,0777);
1343: }
1344: }
1345:
1346: if (copy($source,$copyfile)) {
1347: print $logfile "\nCopied original source to ".$copyfile."\n";
1348: $r->print('<p>Copied source file');
1349: } else {
1350: print $logfile "\nUnable to write ".$copyfile.':'.$!."\n";
1351: return "<font color=red>Failed to copy source, $!, FAIL</font>";
1352: }
1353:
1354: # --------------------------------------------------------------- Copy Metadata
1355:
1356: $copyfile=$copyfile.'.meta';
1357:
1358: if (copy($source.'.meta',$copyfile)) {
1359: print $logfile "\nCopied original metadata to ".$copyfile."\n";
1360: $r->print('<p>Copied metadata');
1361: } else {
1362: print $logfile "\nUnable to write metadata ".$copyfile.':'.$!."\n";
1363: return
1364: "<font color=red>Failed to write metadata copy, $!, FAIL</font>";
1365: }
1366: $r->rflush;
1367: # --------------------------------------------------- Send update notifications
1368:
1369: my @subscribed=&get_subscribed_hosts($target);
1370: foreach my $subhost (@subscribed) {
1371: $r->print('<p>Notifying host '.$subhost.':');$r->rflush;
1372: print $logfile "\nNotifying host ".$subhost.':';
1373: my $reply=&Apache::lonnet::critical('update:'.$target,$subhost);
1374: $r->print($reply.'<br />');$r->rflush;
1375: print $logfile $reply;
1376: }
1377:
1378: # ---------------------------------------- Send update notifications, meta only
1379:
1380: my @subscribedmeta=&get_subscribed_hosts("$target.meta");
1381: foreach my $subhost (@subscribedmeta) {
1382: $r->print('<p>Notifying host for metadata only '.$subhost.':');$r->rflush;
1383: print $logfile "\nNotifying host for metadata only ".$subhost.':';
1384: my $reply=&Apache::lonnet::critical('update:'.$target.'.meta',
1385: $subhost);
1386: $r->print($reply.'<br />');$r->rflush;
1387: print $logfile $reply;
1388: }
1389:
1390: # --------------------------------------------------- Notify subscribed courses
1391: my %courses=&coursedependencies($target);
1392: my $now=time;
1393: foreach (keys %courses) {
1394: $r->print('<p>Notifying course '.$_.':');$r->rflush;
1395: print $logfile "\nNotifying host ".$_.':';
1396: my ($cdom,$cname)=split(/\_/,$_);
1397: my $reply=&Apache::lonnet::cput
1398: ('versionupdate',{$target => $now},$cdom,$cname);
1399: $r->print($reply.'<br />');$r->rflush;
1400: print $logfile $reply;
1401: }
1402: # ------------------------------------------------ Provide link to new resource
1403: unless ($batch) {
1404: my $thisdistarget=$target;
1405: $thisdistarget=~s/^$docroot//;
1406:
1407: my $thissrc=$source;
1408: $thissrc=~s/^\/home\/(\w+)\/public_html/\/priv\/$1/;
1409:
1410: my $thissrcdir=$thissrc;
1411: $thissrcdir=~s/\/[^\/]+$/\//;
1412:
1413:
1414: $r->print(
1415: '<hr><a href="'.$thisdistarget.'"><font size="+2">'.
1416: 'View Published Version</font></a>'.
1417: '<p><a href="'.$thissrc.'"><font size=+2>Back to Source</font></a>'.
1418: '<p><a href="'.$thissrcdir.
1419: '"><font size="+2">Back to Source Directory</font></a>');
1420: }
1421: }
1422:
1423: #########################################
1424:
1425: sub batchpublish {
1426: my ($r,$srcfile,$targetfile)=@_;
1427: $srcfile=~s/\/+/\//g;
1428: $targetfile=~s/\/+/\//g;
1429: my $thisdisfn=$srcfile;
1430: $thisdisfn=~s/\/home\/korte\/public_html\///;
1431: $srcfile=~s/\/+/\//g;
1432:
1433: my $docroot=$r->dir_config('lonDocRoot');
1434: my $thisdistarget=$targetfile;
1435: $thisdistarget=~s/^$docroot//;
1436:
1437:
1438: undef %metadatafields;
1439: undef %metadatakeys;
1440: %metadatafields=();
1441: %metadatakeys=();
1442: $srcfile=~/\.(\w+)$/;
1443: my $thistype=$1;
1444:
1445:
1446: my $thisembstyle=&Apache::loncommon::fileembstyle($thistype);
1447:
1448: $r->print('<h2>Publishing <tt>'.$thisdisfn.'</tt></h2>');
1449:
1450: # phase one takes
1451: # my ($source,$target,$style,$batch)=@_;
1452: $r->print('<p>'.&publish($srcfile,$targetfile,$thisembstyle,1).'</p>');
1453: # phase two takes
1454: # my ($source,$target,$style,$distarget,batch)=@_;
1455: # $ENV{'form.allmeta'},$ENV{'form.title'},$ENV{'form.author'},...
1456: $r->print('<p>');
1457: &phasetwo($r,$srcfile,$targetfile,$thisembstyle,$thisdistarget,1);
1458: $r->print('</p>');
1459: return '';
1460: }
1461:
1462: #########################################
1463:
1464: sub publishdirectory {
1465: my ($r,$fn,$thisdisfn)=@_;
1466: $fn=~s/\/+/\//g;
1467: $thisdisfn=~s/\/+/\//g;
1468: my $resdir=
1469: $Apache::lonnet::perlvar{'lonDocRoot'}.'/res/'.$cudom.'/'.$cuname.'/'.
1470: $thisdisfn;
1471: $r->print('<h1>Directory <tt>'.$thisdisfn.'</tt></h1>'.
1472: 'Target: <tt>'.$resdir.'</tt><br />');
1473:
1474: my $dirptr=16384; # Mask indicating a directory in stat.cmode.
1475:
1476: opendir(DIR,$fn);
1477: my @files=sort(readdir(DIR));
1478: foreach my $filename (@files) {
1479: my ($cdev,$cino,$cmode,$cnlink,
1480: $cuid,$cgid,$crdev,$csize,
1481: $catime,$cmtime,$cctime,
1482: $cblksize,$cblocks)=stat($fn.'/'.$filename);
1483:
1484: my $extension='';
1485: if ($filename=~/\.(\w+)$/) { $extension=$1; }
1486: if ($cmode&$dirptr) {
1487: if (($filename!~/^\./) && ($ENV{'form.pubrec'})) {
1488: &publishdirectory($r,$fn.'/'.$filename,$thisdisfn.'/'.$filename);
1489: }
1490: } elsif ((&Apache::loncommon::fileembstyle($extension) ne 'hdn') &&
1491: ($filename!~/^[\#\.]/) && ($filename!~/\~$/)) {
1492: # find out publication status and/or exiting metadata
1493: my $publishthis=0;
1494: if (-e $resdir.'/'.$filename) {
1495: my ($rdev,$rino,$rmode,$rnlink,
1496: $ruid,$rgid,$rrdev,$rsize,
1497: $ratime,$rmtime,$rctime,
1498: $rblksize,$rblocks)=stat($resdir.'/'.$filename);
1499: if ($rmtime<$cmtime) {
1500: # previously published, modified now
1501: $publishthis=1;
1502: }
1503: } else {
1504: # never published
1505: $publishthis=1;
1506: }
1507: if ($publishthis) {
1508: &batchpublish($r,$fn.'/'.$filename,$resdir.'/'.$filename);
1509: } else {
1510: $r->print('<br />Skipping '.$filename.'<br />');
1511: }
1512: $r->rflush();
1513: }
1514: }
1515: closedir(DIR);
1516: }
1517: #########################################
1518:
1519: =pod
1520:
1521: =item B<handler>
1522:
1523: A basic outline of the handler subroutine follows.
1524:
1525: =over 4
1526:
1527: =item *
1528:
1529: Get query string for limited number of parameters.
1530:
1531: =item *
1532:
1533: Check filename.
1534:
1535: =item *
1536:
1537: File is there and owned, init lookup tables.
1538:
1539: =item *
1540:
1541: Start page output.
1542:
1543: =item *
1544:
1545: Evaluate individual file, and then output information.
1546:
1547: =item *
1548:
1549: Publishing from $thisfn to $thistarget with $thisembstyle.
1550:
1551: =back
1552:
1553: =cut
1554:
1555: #########################################
1556: #########################################
1557: sub handler {
1558: my $r=shift;
1559:
1560: if ($r->header_only) {
1561: $r->content_type('text/html');
1562: $r->send_http_header;
1563: return OK;
1564: }
1565:
1566: # Get query string for limited number of parameters
1567:
1568: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1569: ['filename']);
1570:
1571: # -------------------------------------------------------------- Check filename
1572:
1573: my $fn=$ENV{'form.filename'};
1574:
1575:
1576: unless ($fn) {
1577: $r->log_reason($cuname.' at '.$cudom.
1578: ' trying to publish empty filename', $r->filename);
1579: return HTTP_NOT_FOUND;
1580: }
1581:
1582: ($cuname,$cudom)=
1583: &Apache::loncacc::constructaccess($fn,$r->dir_config('lonDefDomain'));
1584: unless (($cuname) && ($cudom)) {
1585: $r->log_reason($cuname.' at '.$cudom.
1586: ' trying to publish file '.$ENV{'form.filename'}.
1587: ' ('.$fn.') - not authorized',
1588: $r->filename);
1589: return HTTP_NOT_ACCEPTABLE;
1590: }
1591:
1592: unless (&Apache::lonnet::homeserver($cuname,$cudom)
1593: eq $r->dir_config('lonHostID')) {
1594: $r->log_reason($cuname.' at '.$cudom.
1595: ' trying to publish file '.$ENV{'form.filename'}.
1596: ' ('.$fn.') - not homeserver ('.
1597: &Apache::lonnet::homeserver($cuname,$cudom).')',
1598: $r->filename);
1599: return HTTP_NOT_ACCEPTABLE;
1600: }
1601:
1602: $fn=~s/^http\:\/\/[^\/]+//;
1603: $fn=~s/^\/\~(\w+)/\/home\/$1\/public_html/;
1604:
1605: my $targetdir='';
1606: $docroot=$r->dir_config('lonDocRoot');
1607: if ($1 ne $cuname) {
1608: $r->log_reason($cuname.' at '.$cudom.
1609: ' trying to publish unowned file '.$ENV{'form.filename'}.
1610: ' ('.$fn.')',
1611: $r->filename);
1612: return HTTP_NOT_ACCEPTABLE;
1613: } else {
1614: $targetdir=$docroot.'/res/'.$cudom;
1615: }
1616:
1617:
1618: unless (-e $fn) {
1619: $r->log_reason($cuname.' at '.$cudom.
1620: ' trying to publish non-existing file '.$ENV{'form.filename'}.
1621: ' ('.$fn.')',
1622: $r->filename);
1623: return HTTP_NOT_FOUND;
1624: }
1625:
1626: unless ($ENV{'form.phase'} eq 'two') {
1627:
1628: # -------------------------------- File is there and owned, init lookup tables.
1629:
1630: %addid=();
1631:
1632: {
1633: my $fh=Apache::File->new($r->dir_config('lonTabDir').'/addid.tab');
1634: while (<$fh>=~/(\w+)\s+(\w+)/) {
1635: $addid{$1}=$2;
1636: }
1637: }
1638:
1639: %nokey=();
1640:
1641: {
1642: my $fh=Apache::File->new($r->dir_config('lonIncludes').'/un_keyword.tab');
1643: while (<$fh>) {
1644: my $word=$_;
1645: chomp($word);
1646: $nokey{$word}=1;
1647: }
1648: }
1649:
1650: }
1651:
1652: # ---------------------------------------------------------- Start page output.
1653:
1654: $r->content_type('text/html');
1655: $r->send_http_header;
1656:
1657: $r->print('<html><head><title>LON-CAPA Publishing</title></head>');
1658: $r->print(&Apache::loncommon::bodytag('Resource Publication'));
1659:
1660:
1661: my $thisfn=$fn;
1662:
1663: my $thistarget=$thisfn;
1664:
1665: $thistarget=~s/^\/home/$targetdir/;
1666: $thistarget=~s/\/public\_html//;
1667:
1668: my $thisdistarget=$thistarget;
1669: $thisdistarget=~s/^$docroot//;
1670:
1671: my $thisdisfn=$thisfn;
1672: $thisdisfn=~s/^\/home\/$cuname\/public_html\///;
1673:
1674: if ($fn=~/\/$/) {
1675: # -------------------------------------------------------- This is a directory
1676: &publishdirectory($r,$fn,$thisdisfn);
1677:
1678: } else {
1679: # ---------------------- Evaluate individual file, and then output information.
1680: $thisfn=~/\.(\w+)$/;
1681: my $thistype=$1;
1682: my $thisembstyle=&Apache::loncommon::fileembstyle($thistype);
1683:
1684: $r->print('<h2>Publishing '.
1685: &Apache::loncommon::filedescription($thistype).' <tt>'.
1686: '<a href="/~'.$cuname.'/'.$thisdisfn.'" target="cat">'.$thisdisfn.
1687: '</a></tt></h2><b>Target:</b> <tt>'.$thisdistarget.'</tt><p>');
1688:
1689: if (($cuname ne $ENV{'user.name'}) || ($cudom ne $ENV{'user.domain'})) {
1690: $r->print('<h3><font color="red">Co-Author: '.$cuname.' at '.$cudom.
1691: '</font></h3>');
1692: }
1693:
1694: if (&Apache::loncommon::fileembstyle($thistype) eq 'ssi') {
1695: $r->print('<br /><a href="/adm/diff?filename=/~'.$cuname.'/'.
1696: $thisdisfn.
1697: '&versiontwo=priv" target="cat">Diffs with Current Version</a><p>');
1698: }
1699:
1700: # ------------------ Publishing from $thisfn to $thistarget with $thisembstyle.
1701:
1702: unless ($ENV{'form.phase'} eq 'two') {
1703: $r->print(
1704: '<hr />'.&publish($thisfn,$thistarget,$thisembstyle));
1705: } else {
1706: $r->print('<hr />');
1707: &phasetwo($r,$thisfn,$thistarget,$thisembstyle,$thisdistarget);
1708: }
1709:
1710: }
1711: $r->print('</body></html>');
1712:
1713: return OK;
1714: }
1715:
1716: 1;
1717: __END__
1718:
1719: =pod
1720:
1721: =back
1722:
1723: =cut
1724:
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