Annotation of loncom/metadata_database/searchcat.pl, revision 1.72
1.1 harris41 1: #!/usr/bin/perl
2: # The LearningOnline Network
3: # searchcat.pl "Search Catalog" batch script
1.16 harris41 4: #
1.72 ! raeburn 5: # $Id: searchcat.pl,v 1.71 2006/12/29 19:15:27 raeburn Exp $
1.16 harris41 6: #
7: # Copyright Michigan State University Board of Trustees
8: #
1.29 albertel 9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
1.16 harris41 10: #
1.29 albertel 11: # LON-CAPA is free software; you can redistribute it and/or modify
1.16 harris41 12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
1.29 albertel 16: # LON-CAPA is distributed in the hope that it will be useful,
1.16 harris41 17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
1.29 albertel 22: # along with LON-CAPA; if not, write to the Free Software
1.16 harris41 23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
1.29 albertel 27: # http://www.lon-capa.org/
1.16 harris41 28: #
29: ###
1.33 matthew 30:
1.32 www 31: =pod
1.1 harris41 32:
1.32 www 33: =head1 NAME
34:
35: B<searchcat.pl> - put authoritative filesystem data into sql database.
36:
37: =head1 SYNOPSIS
38:
39: Ordinarily this script is to be called from a loncapa cron job
40: (CVS source location: F<loncapa/loncom/cron/loncapa>; typical
41: filesystem installation location: F</etc/cron.d/loncapa>).
42:
43: Here is the cron job entry.
44:
45: C<# Repopulate and refresh the metadata database used for the search catalog.>
46: C<10 1 * * 7 www /home/httpd/perl/searchcat.pl>
47:
48: This script only allows itself to be run as the user C<www>.
49:
50: =head1 DESCRIPTION
51:
52: This script goes through a loncapa resource directory and gathers metadata.
53: The metadata is entered into a SQL database.
54:
55: This script also does general database maintenance such as reformatting
56: the C<loncapa:metadata> table if it is deprecated.
57:
58: This script evaluates dynamic metadata from the authors'
1.48 www 59: F<nohist_resevaldata.db> database file in order to store it in MySQL.
1.32 www 60:
61: This script is playing an increasingly important role for a loncapa
62: library server. The proper operation of this script is critical for a smooth
63: and correct user experience.
64:
65: =cut
1.1 harris41 66:
1.45 www 67: use strict;
1.55 matthew 68: use DBI;
1.17 harris41 69: use lib '/home/httpd/lib/perl/';
1.55 matthew 70: use LONCAPA::lonmetadata;
1.17 harris41 71:
1.56 matthew 72: use Getopt::Long;
1.1 harris41 73: use IO::File;
74: use HTML::TokeParser;
1.21 www 75: use GDBM_File;
1.24 www 76: use POSIX qw(strftime mktime);
1.56 matthew 77:
1.63 matthew 78: use Apache::lonnet();
1.62 matthew 79:
1.55 matthew 80: use File::Find;
1.1 harris41 81:
1.56 matthew 82: #
83: # Set up configuration options
1.63 matthew 84: my ($simulate,$oneuser,$help,$verbose,$logfile,$debug);
1.56 matthew 85: GetOptions (
86: 'help' => \$help,
87: 'simulate' => \$simulate,
88: 'only=s' => \$oneuser,
89: 'verbose=s' => \$verbose,
90: 'debug' => \$debug,
91: );
92:
93: if ($help) {
94: print <<"ENDHELP";
95: $0
96: Rebuild and update the LON-CAPA metadata database.
97: Options:
98: -help Print this help
99: -simulate Do not modify the database.
100: -only=user Only compute for the given user. Implies -simulate
101: -verbose=val Sets logging level, val must be a number
102: -debug Turns on debugging output
103: ENDHELP
104: exit 0;
105: }
106:
107: if (! defined($debug)) {
108: $debug = 0;
109: }
110:
111: if (! defined($verbose)) {
112: $verbose = 0;
113: }
114:
115: if (defined($oneuser)) {
116: $simulate=1;
117: }
118:
1.55 matthew 119: ##
120: ## Use variables for table names so we can test this routine a little easier
1.69 raeburn 121: my %oldnames = (
122: 'metadata' => 'metadata',
123: 'portfolio' => 'portfolio_metadata',
124: 'access' => 'portfolio_access',
125: 'addedfields' => 'portfolio_addedfields',
126: );
127:
128: my %newnames;
129: # new table names - append pid to have unique temporary tables
130: foreach my $key (keys(%oldnames)) {
131: $newnames{$key} = 'new'.$oldnames{$key}.$$;
132: }
1.45 www 133:
1.55 matthew 134: #
135: # Only run if machine is a library server
1.63 matthew 136: exit if ($Apache::lonnet::perlvar{'lonRole'} ne 'library');
1.55 matthew 137: #
138: # Make sure this process is running from user=www
139: my $wwwid=getpwnam('www');
140: if ($wwwid!=$<) {
1.63 matthew 141: my $emailto="$Apache::lonnet::perlvar{'lonAdmEMail'},$Apache::lonnet::perlvar{'lonSysEMail'}";
142: my $subj="LON: $Apache::lonnet::perlvar{'lonHostID'} User ID mismatch";
1.55 matthew 143: system("echo 'User ID mismatch. searchcat.pl must be run as user www.' |\
1.63 matthew 144: mail -s '$subj' $emailto > /dev/null");
1.55 matthew 145: exit 1;
146: }
147: #
148: # Let people know we are running
1.63 matthew 149: open(LOG,'>>'.$Apache::lonnet::perlvar{'lonDaemons'}.'/logs/searchcat.log');
1.56 matthew 150: &log(0,'==== Searchcat Run '.localtime()."====");
1.57 matthew 151:
152:
1.56 matthew 153: if ($debug) {
154: &log(0,'simulating') if ($simulate);
155: &log(0,'only processing user '.$oneuser) if ($oneuser);
156: &log(0,'verbosity level = '.$verbose);
157: }
1.55 matthew 158: #
159: # Connect to database
160: my $dbh;
1.63 matthew 161: if (! ($dbh = DBI->connect("DBI:mysql:loncapa","www",$Apache::lonnet::perlvar{'lonSqlAccess'},
1.55 matthew 162: { RaiseError =>0,PrintError=>0}))) {
1.56 matthew 163: &log(0,"Cannot connect to database!");
1.55 matthew 164: die "MySQL Error: Cannot connect to database!\n";
165: }
166: # This can return an error and still be okay, so we do not bother checking.
167: # (perhaps it should be more robust and check for specific errors)
1.69 raeburn 168: foreach my $key (keys(%newnames)) {
169: if ($newnames{$key} ne '') {
170: $dbh->do('DROP TABLE IF EXISTS '.$newnames{$key});
171: }
172: }
173:
1.55 matthew 174: #
1.69 raeburn 175: # Create the new metadata and portfolio tables
176: foreach my $key (keys(%newnames)) {
177: if ($newnames{$key} ne '') {
178: my $request =
179: &LONCAPA::lonmetadata::create_metadata_storage($newnames{$key},$oldnames{$key});
180: $dbh->do($request);
181: if ($dbh->err) {
182: $dbh->disconnect();
183: &log(0,"MySQL Error Create: ".$dbh->errstr);
184: die $dbh->errstr;
185: }
186: }
1.55 matthew 187: }
1.69 raeburn 188:
1.55 matthew 189: #
190: # find out which users we need to examine
1.63 matthew 191: my @domains = sort(&Apache::lonnet::current_machine_domains());
192: &log(9,'domains ="'.join('","',@domains).'"');
1.62 matthew 193:
194: foreach my $dom (@domains) {
195: &log(9,'domain = '.$dom);
1.63 matthew 196: opendir(RESOURCES,"$Apache::lonnet::perlvar{'lonDocRoot'}/res/$dom");
1.62 matthew 197: my @homeusers =
198: grep {
1.63 matthew 199: &ishome("$Apache::lonnet::perlvar{'lonDocRoot'}/res/$dom/$_");
1.62 matthew 200: } grep {
201: !/^\.\.?$/;
202: } readdir(RESOURCES);
203: closedir RESOURCES;
204: &log(5,'users = '.$dom.':'.join(',',@homeusers));
205: #
206: if ($oneuser) {
207: @homeusers=($oneuser);
208: }
209: #
210: # Loop through the users
211: foreach my $user (@homeusers) {
212: &log(0,"=== User: ".$user);
213: &process_dynamic_metadata($user,$dom);
214: #
215: # Use File::Find to get the files we need to read/modify
216: find(
217: {preprocess => \&only_meta_files,
218: #wanted => \&print_filename,
219: #wanted => \&log_metadata,
220: wanted => \&process_meta_file,
1.66 albertel 221: no_chdir => 1,
1.63 matthew 222: }, join('/',($Apache::lonnet::perlvar{'lonDocRoot'},'res',$dom,$user)) );
1.62 matthew 223: }
1.69 raeburn 224: # Search for public portfolio files
225: my %portusers;
226: if ($oneuser) {
227: %portusers = (
228: $oneuser => '',
229: );
230: } else {
231: my $dir = $Apache::lonnet::perlvar{lonUsersDir}.'/'.$dom;
232: &descend_tree($dir,0,\%portusers);
233: }
234: foreach my $uname (keys(%portusers)) {
235: my $urlstart = '/uploaded/'.$dom.'/'.$uname;
236: my $pathstart = &propath($dom,$uname).'/userfiles';
1.70 albertel 237: my $is_course = &Apache::lonnet::is_course($dom,$uname);
1.69 raeburn 238: my $curr_perm = &Apache::lonnet::get_portfile_permissions($dom,$uname);
239: my %access = &Apache::lonnet::get_access_controls($curr_perm);
240: foreach my $file (keys(%access)) {
241: my ($group,$url,$fullpath);
242: if ($is_course) {
243: ($group, my ($path)) = ($file =~ /^(\w+)(\/.+)$/);
1.72 ! raeburn 244: $fullpath = $pathstart.'/groups/'.$group.'/portfolio'.$path;
1.69 raeburn 245: $url = $urlstart.'/groups/'.$group.'/portfolio'.$path;
246: } else {
247: $fullpath = $pathstart.'/portfolio'.$file;
1.72 ! raeburn 248: $url = $urlstart.'/portfolio'.$file;
1.69 raeburn 249: }
250: if (ref($access{$file}) eq 'HASH') {
251: &process_portfolio_access_data($url,$access{$file});
252: }
253: &process_portfolio_metadata($url,$fullpath,$is_course,$dom,
254: $uname,$group);
255: }
256: }
1.55 matthew 257: }
1.69 raeburn 258:
1.55 matthew 259: #
1.69 raeburn 260: # Rename the tables
1.56 matthew 261: if (! $simulate) {
1.69 raeburn 262: foreach my $key (keys(%oldnames)) {
263: if (($oldnames{$key} ne '') && ($newnames{$key} ne '')) {
264: $dbh->do('DROP TABLE IF EXISTS '.$oldnames{$key});
265: if (! $dbh->do('RENAME TABLE '.$newnames{$key}.' TO '.$oldnames{$key})) {
266: &log(0,"MySQL Error Rename: ".$dbh->errstr);
267: die $dbh->errstr;
268: } else {
269: &log(1,"MySQL table rename successful for $key.");
270: }
271: }
1.56 matthew 272: }
1.55 matthew 273: }
274: if (! $dbh->disconnect) {
1.56 matthew 275: &log(0,"MySQL Error Disconnect: ".$dbh->errstr);
1.55 matthew 276: die $dbh->errstr;
277: }
278: ##
279: ## Finished!
1.56 matthew 280: &log(0,"==== Searchcat completed ".localtime()." ====");
1.55 matthew 281: close(LOG);
1.21 www 282:
1.55 matthew 283: &write_type_count();
284: &write_copyright_count();
1.36 www 285:
1.55 matthew 286: exit 0;
1.28 harris41 287:
1.56 matthew 288: ##
289: ## Status logging routine. Inputs: $level, $message
290: ##
291: ## $level 0 should be used for normal output and error messages
292: ##
293: ## $message does not need to end with \n. In the case of errors
294: ## the message should contain as much information as possible to
295: ## help in diagnosing the problem.
296: ##
297: sub log {
298: my ($level,$message)=@_;
299: $level = 0 if (! defined($level));
300: if ($verbose >= $level) {
301: print LOG $message.$/;
302: }
303: }
304:
1.69 raeburn 305: sub descend_tree {
306: my ($dir,$depth,$alldomusers) = @_;
307: if (-d $dir) {
308: opendir(DIR,$dir);
309: my @contents = grep(!/^\./,readdir(DIR));
310: closedir(DIR);
311: $depth ++;
312: foreach my $item (@contents) {
313: if ($depth < 4) {
314: &descend_tree($dir.'/'.$item,$depth,$alldomusers);
315: } else {
316: if (-e $dir.'/'.$item.'/file_permissions.db') {
317:
318: $$alldomusers{$item} = '';
319: }
320: }
321: }
322: }
323: }
324:
325: sub process_portfolio_access_data {
326: my ($url,$access_hash) = @_;
327: foreach my $key (keys(%{$access_hash})) {
328: my $acc_data;
329: $acc_data->{url} = $url;
330: $acc_data->{keynum} = $key;
331: my ($num,$scope,$end,$start) =
332: ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
333: $acc_data->{scope} = $scope;
334: if ($end != 0) {
1.71 raeburn 335: $acc_data->{end} = &LONCAPA::lonmetadata::sqltime($end);
1.69 raeburn 336: }
1.71 raeburn 337: $acc_data->{start} = &LONCAPA::lonmetadata::sqltime($start);
1.69 raeburn 338: if (! $simulate) {
339: my ($count,$err) =
340: &LONCAPA::lonmetadata::store_metadata($dbh,
341: $newnames{'access'},
342: 'portfolio_access',$acc_data);
343: if ($err) {
344: &log(0,"MySQL Error Insert: ".$err);
345: }
346: if ($count < 1) {
347: &log(0,"Unable to insert record into MySQL database for $url");
348: }
349: }
350: }
351: }
352:
353: sub process_portfolio_metadata {
354: my ($url,$fullpath,$is_course,$dom,$uname,$group) = @_;
355: my ($ref,$crs,$addedfields) = &portfolio_metadata($fullpath,$dom,$uname,
356: $group);
357: &getfiledates($ref,$fullpath);
358: if ($is_course) {
359: $ref->{'groupname'} = $group;
360: }
361: my %Data;
362: if (ref($ref) eq 'HASH') {
363: %Data = %{$ref};
364: }
365: %Data = (
366: %Data,
367: 'url'=>$url,
368: 'version'=>'current',
369: );
370: if (! $simulate) {
371: my ($count,$err) =
372: &LONCAPA::lonmetadata::store_metadata($dbh,
373: $newnames{'portfolio'},
374: 'portfolio_metadata',\%Data);
375: if ($err) {
376: &log(0,"MySQL Error Insert: ".$err);
377: }
378: if ($count < 1) {
379: &log(0,"Unable to insert record into MySQL portfolio_metadata database table for $url");
380: }
381: if (ref($addedfields) eq 'HASH') {
382: if (keys(%{$addedfields}) > 0) {
383: foreach my $key (keys(%{$addedfields})) {
384: my $added_data = {
385: 'url' => $url,
386: 'field' => $key,
387: 'value' => $addedfields->{$key},
388: 'courserestricted' => $crs,
389: };
390: ($count,$err) = &LONCAPA::lonmetadata::store_metadata($dbh,
391: $newnames{'addedfields'},
392: 'portfolio_addedfields',
393: $added_data);
394: if ($err) {
395: &log(0,"MySQL Error Insert: ".$err);
396: }
397: if ($count < 1) {
398: &log(0,"Unable to insert record into MySQL portfolio_addedfields database table for url = $url and field = $key");
399: }
400: }
401: }
402: }
403: }
404: return;
405: }
406:
1.55 matthew 407: ########################################################
408: ########################################################
409: ### ###
410: ### File::Find support routines ###
411: ### ###
412: ########################################################
413: ########################################################
414: ##
415: ## &only_meta_files
416: ##
417: ## Called by File::Find.
418: ## Takes a list of files/directories in and returns a list of files/directories
419: ## to search.
420: sub only_meta_files {
421: my @PossibleFiles = @_;
422: my @ChosenFiles;
423: foreach my $file (@PossibleFiles) {
424: if ( ($file =~ /\.meta$/ && # Ends in meta
425: $file !~ /\.\d+\.[^\.]+\.meta$/ # is not for a prior version
1.67 albertel 426: ) || (-d $File::Find::dir."/".$file )) { # directories are okay
1.55 matthew 427: # but we do not want /. or /..
428: push(@ChosenFiles,$file);
429: }
1.38 www 430: }
1.55 matthew 431: return @ChosenFiles;
1.38 www 432: }
433:
1.55 matthew 434: ##
435: ##
436: ## Debugging routines, use these for 'wanted' in the File::Find call
437: ##
438: sub print_filename {
439: my ($file) = $_;
440: my $fullfilename = $File::Find::name;
1.56 matthew 441: if ($debug) {
442: if (-d $file) {
443: &log(5," Got directory ".$fullfilename);
444: } else {
445: &log(5," Got file ".$fullfilename);
446: }
1.38 www 447: }
1.55 matthew 448: $_=$file;
1.38 www 449: }
1.28 harris41 450:
1.55 matthew 451: sub log_metadata {
452: my ($file) = $_;
453: my $fullfilename = $File::Find::name;
454: return if (-d $fullfilename); # No need to do anything here for directories
1.56 matthew 455: if ($debug) {
456: &log(6,$fullfilename);
1.69 raeburn 457: my $ref = &metadata($fullfilename);
1.56 matthew 458: if (! defined($ref)) {
459: &log(6," No data");
460: return;
461: }
462: while (my($key,$value) = each(%$ref)) {
463: &log(6," ".$key." => ".$value);
464: }
465: &count_copyright($ref->{'copyright'});
1.55 matthew 466: }
467: $_=$file;
1.31 harris41 468: }
1.21 www 469:
1.55 matthew 470: ##
471: ## process_meta_file
472: ## Called by File::Find.
473: ## Only input is the filename in $_.
474: sub process_meta_file {
475: my ($file) = $_;
1.56 matthew 476: my $filename = $File::Find::name; # full filename
1.55 matthew 477: return if (-d $filename); # No need to do anything here for directories
478: #
1.56 matthew 479: &log(3,$filename) if ($debug);
1.55 matthew 480: #
1.69 raeburn 481: my $ref = &metadata($filename);
1.55 matthew 482: #
483: # $url is the original file url, not the metadata file
1.61 matthew 484: my $target = $filename;
485: $target =~ s/\.meta$//;
486: my $url='/res/'.&declutter($target);
1.56 matthew 487: &log(3," ".$url) if ($debug);
1.55 matthew 488: #
489: # Ignore some files based on their metadata
490: if ($ref->{'obsolete'}) {
1.56 matthew 491: &log(3,"obsolete") if ($debug);
1.55 matthew 492: return;
493: }
494: &count_copyright($ref->{'copyright'});
495: if ($ref->{'copyright'} eq 'private') {
1.56 matthew 496: &log(3,"private") if ($debug);
1.55 matthew 497: return;
498: }
499: #
500: # Find the dynamic metadata
501: my %dyn;
502: if ($url=~ m:/default$:) {
503: $url=~ s:/default$:/:;
1.56 matthew 504: &log(3,"Skipping dynamic data") if ($debug);
1.55 matthew 505: } else {
1.56 matthew 506: &log(3,"Retrieving dynamic data") if ($debug);
507: %dyn=&get_dynamic_metadata($url);
1.55 matthew 508: &count_type($url);
509: }
1.69 raeburn 510: &getfiledates($ref,$target);
1.55 matthew 511: #
512: my %Data = (
513: %$ref,
514: %dyn,
515: 'url'=>$url,
516: 'version'=>'current');
1.56 matthew 517: if (! $simulate) {
1.69 raeburn 518: my ($count,$err) =
519: &LONCAPA::lonmetadata::store_metadata($dbh,$newnames{'metadata'},
520: 'metadata',\%Data);
1.56 matthew 521: if ($err) {
522: &log(0,"MySQL Error Insert: ".$err);
523: }
524: if ($count < 1) {
525: &log(0,"Unable to insert record into MySQL database for $url");
526: }
1.55 matthew 527: }
528: #
529: # Reset $_ before leaving
530: $_ = $file;
531: }
532:
533: ########################################################
534: ########################################################
535: ### ###
536: ### &metadata($uri) ###
537: ### Retrieve metadata for the given file ###
538: ### ###
539: ########################################################
540: ########################################################
541: sub metadata {
1.69 raeburn 542: my ($uri) = @_;
1.55 matthew 543: my %metacache=();
544: $uri=&declutter($uri);
545: my $filename=$uri;
546: $uri=~s/\.meta$//;
547: $uri='';
548: if ($filename !~ /\.meta$/) {
549: $filename.='.meta';
550: }
1.63 matthew 551: my $metastring=&getfile($Apache::lonnet::perlvar{'lonDocRoot'}.'/res/'.$filename);
1.55 matthew 552: return undef if (! defined($metastring));
553: my $parser=HTML::TokeParser->new(\$metastring);
554: my $token;
555: while ($token=$parser->get_token) {
556: if ($token->[0] eq 'S') {
557: my $entry=$token->[1];
558: my $unikey=$entry;
559: if (defined($token->[2]->{'part'})) {
560: $unikey.='_'.$token->[2]->{'part'};
561: }
562: if (defined($token->[2]->{'name'})) {
563: $unikey.='_'.$token->[2]->{'name'};
564: }
565: if ($metacache{$uri.'keys'}) {
566: $metacache{$uri.'keys'}.=','.$unikey;
567: } else {
568: $metacache{$uri.'keys'}=$unikey;
569: }
570: foreach ( @{$token->[3]}) {
571: $metacache{$uri.''.$unikey.'.'.$_}=$token->[2]->{$_};
1.69 raeburn 572: }
1.55 matthew 573: if (! ($metacache{$uri.''.$unikey}=$parser->get_text('/'.$entry))){
574: $metacache{$uri.''.$unikey} =
575: $metacache{$uri.''.$unikey.'.default'};
576: }
577: } # End of ($token->[0] eq 'S')
578: }
579: return \%metacache;
1.31 harris41 580: }
1.28 harris41 581:
1.69 raeburn 582: ###############################################################
583: ###############################################################
584: ### ###
585: ### &portfolio_metadata($filepath,$dom,$uname,$group) ###
586: ### Retrieve metadata for the given file ###
587: ### Returns array - ###
588: ### contains reference to metadatahash and ###
589: ### optional reference to addedfields hash ###
590: ### ###
591: ###############################################################
592: ###############################################################
593: sub portfolio_metadata {
594: my ($fullpath,$dom,$uname,$group)=@_;
595: my ($mime) = ( $fullpath=~/\.(\w+)$/ );
596: my %metacache=();
597: if ($fullpath !~ /\.meta$/) {
598: $fullpath .= '.meta';
599: }
600: my (@standard_fields,%addedfields);
601: my $colsref =
602: $LONCAPA::lonmetadata::Portfolio_metadata_table_description;
603: if (ref($colsref) eq 'ARRAY') {
604: my @columns = @{$colsref};
605: foreach my $coldata (@columns) {
606: push(@standard_fields,$coldata->{'name'});
607: }
608: }
609: my $metastring=&getfile($fullpath);
610: if (! defined($metastring)) {
611: $metacache{'keys'}= 'owner,domain,mime';
612: $metacache{'owner'} = $uname.':'.$dom;
613: $metacache{'domain'} = $dom;
614: $metacache{'mime'} = $mime;
615: if (defined($group)) {
616: $metacache{'keys'} .= ',courserestricted';
617: $metacache{'courserestricted'} = 'course.'.$dom.'_'.$uname;
618: }
619: } else {
620: my $parser=HTML::TokeParser->new(\$metastring);
621: my $token;
622: while ($token=$parser->get_token) {
623: if ($token->[0] eq 'S') {
624: my $entry=$token->[1];
625: if ($metacache{'keys'}) {
626: $metacache{'keys'}.=','.$entry;
627: } else {
628: $metacache{'keys'}=$entry;
629: }
630: my $value = $parser->get_text('/'.$entry);
631: if (!grep(/^\Q$entry\E$/,@standard_fields)) {
632: my $clean_value = lc($value);
633: $clean_value =~ s/\s/_/g;
634: if ($clean_value ne $entry) {
635: if (defined($addedfields{$entry})) {
636: $addedfields{$entry} .=','.$value;
637: } else {
638: $addedfields{$entry} = $value;
639: }
640: }
641: } else {
642: $metacache{$entry} = $value;
643: }
644: }
645: } # End of ($token->[0] eq 'S')
646: }
647: if (keys(%addedfields) > 0) {
648: foreach my $key (sort keys(%addedfields)) {
649: $metacache{'addedfieldnames'} .= $key.',';
650: $metacache{'addedfieldvalues'} .= $addedfields{$key}.'&&&';
651: }
652: $metacache{'addedfieldnames'} =~ s/,$//;
653: $metacache{'addedfieldvalues'} =~ s/\&\&\&$//;
654: if ($metacache{'keys'}) {
655: $metacache{'keys'}.=',addedfieldnames';
656: } else {
657: $metacache{'keys'}='addedfieldnames';
658: }
659: $metacache{'keys'}.=',addedfieldvalues';
660: }
661: return (\%metacache,$metacache{'courserestricted'},\%addedfields);
662: }
663:
1.55 matthew 664: ##
665: ## &getfile($filename)
666: ## Slurps up an entire file into a scalar.
667: ## Returns undef if the file does not exist
668: sub getfile {
669: my $file = shift();
670: if (! -e $file ) {
671: return undef;
672: }
673: my $fh=IO::File->new($file);
674: my $contents = '';
675: while (<$fh>) {
676: $contents .= $_;
677: }
678: return $contents;
679: }
1.28 harris41 680:
1.69 raeburn 681: ##
682: ## &getfiledates()
683: ## Converts creationdate and modifieddates to SQL format
684: ## Applies stat() to file to retrieve dates if missing
685: sub getfiledates {
686: my ($ref,$target) = @_;
687: if (! defined($ref->{'creationdate'}) ||
688: $ref->{'creationdate'} =~ /^\s*$/) {
689: $ref->{'creationdate'} = (stat($target))[9];
690: }
691: if (! defined($ref->{'lastrevisiondate'}) ||
692: $ref->{'lastrevisiondate'} =~ /^\s*$/) {
693: $ref->{'lastrevisiondate'} = (stat($target))[9];
694: }
1.71 raeburn 695: $ref->{'creationdate'} =
696: &LONCAPA::lonmetadata::sqltime($ref->{'creationdate'});
697: $ref->{'lastrevisiondate'} =
698: &LONCAPA::lonmetadata::sqltime($ref->{'lastrevisiondate'});
1.69 raeburn 699: }
700:
1.55 matthew 701: ########################################################
702: ########################################################
703: ### ###
704: ### Dynamic Metadata ###
705: ### ###
706: ########################################################
707: ########################################################
1.56 matthew 708: ##
1.58 www 709: ## Dynamic metadata description (incomplete)
710: ##
711: ## For a full description of all fields,
712: ## see LONCAPA::lonmetadata
1.56 matthew 713: ##
714: ## Field Type
715: ##-----------------------------------------------------------
716: ## count integer
717: ## course integer
1.58 www 718: ## course_list comma separated list of course ids
1.56 matthew 719: ## avetries real
1.58 www 720: ## avetries_list comma separated list of real numbers
1.56 matthew 721: ## stdno real
1.58 www 722: ## stdno_list comma separated list of real numbers
1.56 matthew 723: ## usage integer
1.58 www 724: ## usage_list comma separated list of resources
1.56 matthew 725: ## goto scalar
1.58 www 726: ## goto_list comma separated list of resources
1.56 matthew 727: ## comefrom scalar
1.58 www 728: ## comefrom_list comma separated list of resources
1.56 matthew 729: ## difficulty real
1.58 www 730: ## difficulty_list comma separated list of real numbers
1.56 matthew 731: ## sequsage scalar
1.58 www 732: ## sequsage_list comma separated list of resources
1.56 matthew 733: ## clear real
734: ## technical real
735: ## correct real
736: ## helpful real
737: ## depth real
738: ## comments html of all the comments made
739: ##
740: {
741:
742: my %DynamicData;
743: my %Counts;
744:
745: sub process_dynamic_metadata {
746: my ($user,$dom) = @_;
747: undef(%DynamicData);
748: undef(%Counts);
749: #
750: my $prodir = &propath($dom,$user);
1.55 matthew 751: #
1.56 matthew 752: # Read in the dynamic metadata
1.55 matthew 753: my %evaldata;
754: if (! tie(%evaldata,'GDBM_File',
755: $prodir.'/nohist_resevaldata.db',&GDBM_READER(),0640)) {
1.56 matthew 756: return 0;
1.55 matthew 757: }
1.56 matthew 758: #
1.57 matthew 759: %DynamicData = &LONCAPA::lonmetadata::process_reseval_data(\%evaldata);
1.55 matthew 760: untie(%evaldata);
1.62 matthew 761: $DynamicData{'domain'} = $dom;
1.64 albertel 762: #print('user = '.$user.' domain = '.$dom.$/);
1.56 matthew 763: #
764: # Read in the access count data
765: &log(7,'Reading access count data') if ($debug);
766: my %countdata;
767: if (! tie(%countdata,'GDBM_File',
768: $prodir.'/nohist_accesscount.db',&GDBM_READER(),0640)) {
769: return 0;
770: }
771: while (my ($key,$count) = each(%countdata)) {
772: next if ($key !~ /^$dom/);
773: $key = &unescape($key);
774: &log(8,' Count '.$key.' = '.$count) if ($debug);
775: $Counts{$key}=$count;
776: }
777: untie(%countdata);
778: if ($debug) {
779: &log(7,scalar(keys(%Counts)).
780: " Counts read for ".$user."@".$dom);
781: &log(7,scalar(keys(%DynamicData)).
782: " Dynamic metadata read for ".$user."@".$dom);
783: }
784: #
785: return 1;
786: }
787:
788: sub get_dynamic_metadata {
789: my ($url) = @_;
790: $url =~ s:^/res/::;
1.57 matthew 791: my %data = &LONCAPA::lonmetadata::process_dynamic_metadata($url,
792: \%DynamicData);
1.56 matthew 793: # find the count
794: $data{'count'} = $Counts{$url};
795: #
796: # Log the dynamic metadata
797: if ($debug) {
798: while (my($k,$v)=each(%data)) {
799: &log(8," ".$k." => ".$v);
800: }
1.44 www 801: }
1.56 matthew 802: return %data;
1.30 www 803: }
1.28 harris41 804:
1.56 matthew 805: } # End of %DynamicData and %Counts scope
806:
1.55 matthew 807: ########################################################
808: ########################################################
809: ### ###
810: ### Counts ###
811: ### ###
812: ########################################################
813: ########################################################
814: {
1.1 harris41 815:
1.55 matthew 816: my %countext;
1.15 harris41 817:
1.55 matthew 818: sub count_type {
819: my $file=shift;
820: $file=~/\.(\w+)$/;
821: my $ext=lc($1);
822: $countext{$ext}++;
1.31 harris41 823: }
1.1 harris41 824:
1.55 matthew 825: sub write_type_count {
826: open(RESCOUNT,'>/home/httpd/html/lon-status/rescount.txt');
827: while (my ($extension,$count) = each(%countext)) {
828: print RESCOUNT $extension.'='.$count.'&';
1.47 www 829: }
1.55 matthew 830: print RESCOUNT 'time='.time."\n";
831: close(RESCOUNT);
1.31 harris41 832: }
1.27 www 833:
1.55 matthew 834: } # end of scope for %countext
1.34 matthew 835:
1.55 matthew 836: {
1.34 matthew 837:
1.55 matthew 838: my %copyrights;
1.44 www 839:
1.55 matthew 840: sub count_copyright {
841: $copyrights{@_[0]}++;
1.31 harris41 842: }
1.33 matthew 843:
1.55 matthew 844: sub write_copyright_count {
845: open(COPYCOUNT,'>/home/httpd/html/lon-status/copyrightcount.txt');
846: while (my ($copyright,$count) = each(%copyrights)) {
847: print COPYCOUNT $copyright.'='.$count.'&';
1.31 harris41 848: }
1.55 matthew 849: print COPYCOUNT 'time='.time."\n";
850: close(COPYCOUNT);
1.31 harris41 851: }
1.28 harris41 852:
1.55 matthew 853: } # end of scope for %copyrights
1.28 harris41 854:
1.55 matthew 855: ########################################################
856: ########################################################
857: ### ###
858: ### Miscellanous Utility Routines ###
859: ### ###
860: ########################################################
861: ########################################################
862: ##
863: ## &ishome($username)
864: ## Returns 1 if $username is a LON-CAPA author, 0 otherwise
865: ## (copied from lond, modification of the return value)
1.31 harris41 866: sub ishome {
867: my $author=shift;
868: $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
869: my ($udom,$uname)=split(/\//,$author);
870: my $proname=propath($udom,$uname);
871: if (-e $proname) {
872: return 1;
873: } else {
874: return 0;
875: }
876: }
1.28 harris41 877:
1.55 matthew 878: ##
879: ## &propath($udom,$uname)
880: ## Returns the path to the users LON-CAPA directory
881: ## (copied from lond)
1.31 harris41 882: sub propath {
883: my ($udom,$uname)=@_;
884: $udom=~s/\W//g;
885: $uname=~s/\W//g;
886: my $subdir=$uname.'__';
887: $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
1.63 matthew 888: my $proname="$Apache::lonnet::perlvar{'lonUsersDir'}/$udom/$subdir/$uname";
1.31 harris41 889: return $proname;
890: }
1.28 harris41 891:
1.55 matthew 892: ##
893: ## &declutter($filename)
894: ## Given a filename, returns a url for the filename.
895: sub declutter {
896: my $thisfn=shift;
1.63 matthew 897: $thisfn=~s/^$Apache::lonnet::perlvar{'lonDocRoot'}//;
1.55 matthew 898: $thisfn=~s/^\///;
899: $thisfn=~s/^res\///;
900: return $thisfn;
1.31 harris41 901: }
1.28 harris41 902:
1.55 matthew 903: ##
904: ## Escape / Unescape special characters
905: sub unescape {
906: my $str=shift;
907: $str =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
908: return $str;
1.31 harris41 909: }
1.28 harris41 910:
1.55 matthew 911: sub escape {
912: my $str=shift;
913: $str =~ s/(\W)/"%".unpack('H2',$1)/eg;
914: return $str;
1.45 www 915: }
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