1: # The LearningOnline Network with CAPA
2: # Authoring Space Directory Lister
3: #
4: # $Id: lonpubdir.pm,v 1.168 2016/06/10 22:31:34 raeburn 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:
30: package Apache::lonpubdir;
31:
32: use strict;
33: use Apache::File;
34: use File::Copy;
35: use Apache::Constants qw(:common :http :methods);
36: use Apache::loncommon();
37: use Apache::lonhtmlcommon();
38: use Apache::londiff();
39: use Apache::lonlocal;
40: use Apache::lonmsg;
41: use Apache::lonmenu;
42: use Apache::lonnet;
43: use LONCAPA qw(:DEFAULT :match);
44:
45: sub handler {
46:
47: my $r=shift;
48:
49: # Validate access to the construction space and get username:domain.
50:
51: my ($uname,$udom)=&Apache::lonnet::constructaccess($r->uri);
52: unless (($uname) && ($udom)) {
53: return HTTP_NOT_ACCEPTABLE;
54: }
55:
56: # ----------------------------------------------------------- Start page output
57:
58: my $fn=$r->filename;
59: $fn=~s/\/$//;
60: my $thisdisfn=$fn;
61:
62: my $docroot=$r->dir_config('lonDocRoot'); # Apache londocument root.
63: if ($thisdisfn eq "$docroot/priv/$udom") {
64: if ((-d "/home/$uname/public_html/") && (!-e "$docroot/priv/$udom/$uname")) {
65: my ($version) = ($r->dir_config('lonVersion') =~ /^\'?(\d+\.\d+)\./);
66: &Apache::loncommon::content_type($r,'text/html');
67: $r->send_http_header;
68:
69: &Apache::lonhtmlcommon::clear_breadcrumbs();
70: my $js = '<script type="text/javascript"
71: src="/res/adm/includes/file_upload.js"></script>';
72: $r->print(&Apache::loncommon::start_page('Authoring Space', $js).
73: '<div class="LC_error">'.
74: '<br /><p>'.
75: &mt('Your Authoring Space is currently in the location used by LON-CAPA version 2.10 and older, but your domain is using a newer LON-CAPA version ([_1]).',$version).'</p>'.
76: '<p>'.
77: &mt('Please ask your Domain Coordinator to move your Authoring Space to the new location.').
78: '</p>'.
79: '</div>'.
80: &Apache::loncommon::end_page());
81: return OK;
82: }
83: }
84: $thisdisfn=~s/^\Q$docroot\E\/priv//;
85:
86: my $resdir=$docroot.'/res'.$thisdisfn; # Resource directory
87: my $targetdir='/res'.$thisdisfn; # Publication target directory.
88: my $linkdir='/priv'.$thisdisfn; # Full URL name of constr space.
89:
90: my %bombs=&Apache::lonmsg::all_url_author_res_msg($uname,$udom);
91:
92: my $londocroot = $Apache::lonnet::perlvar{'lonDocRoot'};
93: my $current_disk_usage = &Apache::lonnet::diskusage($udom,$uname,
94: "$londocroot/priv/$udom/$uname"); # expressed in kB
95: my $disk_quota = &Apache::loncommon::get_user_quota($uname,$udom,
96: 'author'); # expressed in MB
97:
98: # Put out the start of page.
99: &startpage($r, $uname, $udom, $thisdisfn, $current_disk_usage, $disk_quota);
100:
101: if (!-d $fn) {
102: if (-e $fn) {
103: $r->print('<p class="LC_info">'.&mt('Requested item is a file not a directory.').'</p>');
104: } else {
105: $r->print('<p class="LC_info">'.&mt('The requested subdirectory does not exist.').'</p>');
106: }
107: $r->print(&Apache::loncommon::end_page());
108: return OK;
109: }
110: my @files;
111: if (opendir(DIR,$fn)) {
112: @files = grep(!/^\.+$/,readdir(DIR));
113: closedir(DIR);
114: } else {
115: $r->print('<p class="LC_error">'.&mt('Could not open directory.').'</p>');
116: $r->print(&Apache::loncommon::end_page());
117: return OK;
118: }
119:
120: # Put out actions for directory, browse/upload + new file page.
121: &dircontrols($r,$uname,$udom,$thisdisfn, $current_disk_usage, $disk_quota);
122: &resourceactions($r,$uname,$udom,$thisdisfn); # Put out form used for printing/deletion etc.
123:
124: my $numdir = 0;
125: my $numres = 0;
126:
127: if ((@files == 0) && ($thisdisfn =~ m{^/$match_domain/$match_username})) {
128: if ($thisdisfn =~ m{^/$match_domain/$match_username$}) {
129: $r->print('<p class="LC_info">'.&mt('This Authoring Space is currently empty.').'</p>');
130: } else {
131: $r->print('<p class="LC_info">'.&mt('This subdirectory is currently empty.').'</p>');
132: }
133: $r->print(&Apache::loncommon::end_page());
134: return OK;
135: }
136:
137: # Retrieving value for "sortby" and "sortorder" from QUERY_STRING
138: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
139: ['sortby','sortorder']);
140:
141: # Sort by name as default, not reversed
142: if (! exists($env{'form.sortby'})) { $env{'form.sortby'} = 'filename' }
143: if (! exists($env{'form.sortorder'})) { $env{'form.sortorder'} = '' }
144: my $sortby = $env{'form.sortby'};
145: my $sortorder = $env{'form.sortorder'};
146:
147: # Order in which columns are displayed from left to right
148: my @order = ('filetype','actions','filename','title',
149: 'pubstatus','cmtime','size');
150:
151: # Up and down arrows to indicate sort order
152: my @arrows = (' ▲',' ▼','');
153:
154: # Default sort order and column title
155: my %columns = (
156: filetype => {
157: order => 'ascending',
158: text => &mt('Type'),
159: },
160: actions => {
161: # Not sortable
162: text => &mt('Actions'),
163: },
164: filename => {
165: order => 'ascending',
166: text => &mt('Name'),
167: },
168: title => {
169: order => 'ascending',
170: text => &mt('Title'),
171: },
172: pubstatus => {
173: order => 'ascending',
174: text => &mt('Status'),
175: colspan => '2',
176: },
177: cmtime => {
178: order => 'descending',
179: text => &mt('Last Modified'),
180: },
181: size => {
182: order => 'ascending',
183: text => &mt('Size').' (kB)',
184: },
185: );
186:
187: # Print column headers
188: my $output = '';
189: foreach my $key (@order) {
190: my $idx;
191: # Append an up or down arrow to sorted column
192: if ($sortby eq $key) {
193: $idx = ($columns{$key}{order} eq 'ascending') ? 0:1;
194: if ($sortorder eq 'rev') { $idx ++; }
195: $idx = $idx%2;
196: } else { $idx = 2; } # No arrow if column is not sorted
197: $output .= (($columns{$key}{order}) ?
198: '<th'.($columns{$key}{colspan} ? ' colspan="'.$columns{$key}{colspan}.'"' : '')
199: .'><a href="'.$linkdir.'/?sortby='.$key.'&sortorder='
200: .((($sortby eq $key) && ($sortorder ne 'rev')) ? 'rev' : '').'">'
201: .$columns{$key}{text}.$arrows[$idx].'</a></th>' :
202: '<th>'.$columns{$key}{text}.'</th>');
203: }
204:
205: my $result = "<script type=\"text/javascript\">
206: sessionStorage.setItem('CSTRcache','".&prepareJsonData($uname,$udom,$thisdisfn)."');
207: localStorage.setItem('CSTRtrans', '".&prepareJsonTranslations()."');
208: </script>";
209: $r->print($result);
210:
211: $r->print('<div id="currentFolder">'.&Apache::loncommon::start_data_table()
212: .'<tr><th colspan="8" id="searchtitle" style="display:none"></th></tr>'
213: .&Apache::loncommon::start_data_table_header_row() . $output
214: .&Apache::loncommon::end_data_table_header_row()
215: );
216:
217: my $dirptr=16384; # Mask indicating a directory in stat.cmode.
218: my $filehash = {};
219: foreach my $filename (@files) {
220: # Skip .DS_Store, .DAV and hidden files
221: my ($extension) = ($filename=~/\.(\w+)$/);
222: next if (($filename eq '.DS_Store')
223: || ($filename eq '.DAV')
224: || (&Apache::loncommon::fileembstyle($extension) eq 'hdn')
225: || ($filename =~ /^\._/));
226:
227: my ($cmode,$csize,$cmtime)=(stat($fn.'/'.$filename))[2,7,9];
228: my $linkfilename = &HTML::Entities::encode('/priv'.$thisdisfn.'/'.$filename,'<>&"');
229: # Identify type of file according to icon used
230: my ($filetype) = (&Apache::loncommon::icon($filename) =~ m{/(\w+).gif$});
231: my $cstr_dir = $r->dir_config('lonDocRoot').'/priv'.$thisdisfn;
232: my $meta_same = &isMetaSame($cstr_dir, $resdir, $filename);
233:
234: # Store size, title, and status for files but not directories
235: my $size = (!($cmode&$dirptr)) ? $csize/1024. : 0;
236: my ($status, $pubstatus, $title, $fulltitle);
237: if (!($cmode&$dirptr)) {
238: ($status, $pubstatus) = &getStatus($resdir, $targetdir, $cstr_dir,
239: $filename, $linkfilename, $cmtime, $meta_same);
240: ($fulltitle, $title) = &getTitle($resdir, $targetdir, $filename,
241: $linkfilename, $meta_same, \%bombs);
242: } else {
243: ($status, $pubstatus) = ('','');
244: ($fulltitle, $title) = ('','');
245: }
246:
247: # This hash will allow sorting
248: $filehash->{ $filename } = {
249: "cmtime" => $cmtime,
250: "size" => $size,
251: "cmode" => $cmode,
252: "filetype" => $filetype,
253: "title" => $title,
254: "fulltitle" => $fulltitle,
255: "status" => $status,
256: "pubstatus" => $pubstatus,
257: "linkfilename" => $linkfilename,
258: }
259: }
260:
261: my @sorted_files;
262: # Sorting by something other than "Name". Name is the secondary key.
263: if ($sortby =~ m{cmtime|size}) { # Numeric fields
264: # First check if order should be reversed
265: if ($sortorder eq "rev") {
266: @sorted_files = sort {
267: $filehash->{$a}->{$sortby} <=> $filehash->{$b}->{$sortby}
268: or
269: uc($a) cmp uc($b)
270: } (keys(%{$filehash}));
271: } else {
272: @sorted_files = sort {
273: $filehash->{$b}->{$sortby} <=> $filehash->{$a}->{$sortby}
274: or
275: uc($a) cmp uc($b)
276: } (keys(%{$filehash}));
277: }
278: } elsif ($sortby =~ m{filetype|title|status}) { # String fields
279: if ($sortorder eq "rev") {
280: @sorted_files = sort {
281: $filehash->{$b}->{$sortby} cmp $filehash->{$a}->{$sortby}
282: or
283: uc($a) cmp uc($b)
284: } (keys(%{$filehash}));
285: } else {
286: @sorted_files = sort {
287: $filehash->{$a}->{$sortby} cmp $filehash->{$b}->{$sortby}
288: or
289: uc($a) cmp uc($b)
290: } (keys(%{$filehash}));
291: }
292:
293: # Sort by "Name" is the default
294: } else {
295: if ($sortorder eq "rev") {
296: @sorted_files = sort {uc($b) cmp uc($a)} (keys(%{$filehash}));
297: } else {
298: @sorted_files = sort {uc($a) cmp uc($b)} (keys(%{$filehash}));
299: }
300: }
301:
302: # Print the sorted resources
303: foreach my $filename (@sorted_files) {
304: if ($filehash->{$filename}->{"cmode"}&$dirptr) { # Directories
305: &putdirectory($r, $thisdisfn, $linkdir, $filename,
306: $filehash->{$filename}->{"cmtime"},
307: $targetdir, \%bombs, \$numdir);
308: } else { # Files
309: &putresource($r, $udom, $uname, $filename, $thisdisfn, $resdir,
310: $targetdir, $linkdir, $filehash->{$filename}->{"cmtime"},
311: $filehash->{$filename}->{"size"}, \$numres,
312: $filehash->{$filename}->{"linkfilename"},
313: $filehash->{$filename}->{"fulltitle"},
314: $filehash->{$filename}->{"status"},
315: $filehash->{$filename}->{"pubstatus"});
316: }
317: }
318:
319: $r->print(&Apache::loncommon::end_data_table()
320: .'</div><div id="otherplaces" style="display:none">'
321: .&Apache::loncommon::start_data_table()
322: .'<tr><th colspan="7">'.&mt('Results in other directories:').'</th></tr>'
323: .'<tr class="LC_header_row" id="otherplacestable">'
324: .'<th>'.&mt('Type').'</th>'
325: .'<th>'.&mt('Directory').'</th>'
326: .'<th>'.&mt('Name').'</th>'
327: .'<th>'.&mt('Title').'</th>'
328: .'<th colspan="2">'.&mt('Status').'</th>'
329: .'<th>'.&mt('Last Modified').'</th>'
330: .'</tr>'
331: .&Apache::loncommon::end_data_table()
332: .'</div>'
333: .&Apache::loncommon::end_page()
334: );
335: return OK;
336: }
337:
338:
339:
340: # Output the header of the page. This includes:
341: # - The HTML header
342: # - The H1/H3 stuff which includes the directory.
343: #
344: # startpage($r, $uame, $udom, $thisdisfn, $current_disk_usage, $disk_quota);
345: # $r - The apache request object.
346: # $uname - User name.
347: # $udom - Domain name the user is logged in under.
348: # $thisdisfn - Displayable version of the filename.
349: # $current_disk_usage - User's current disk usage (in kB).
350: # $disk_quota - Disk quota for user's authoring space (in MB).
351:
352: sub startpage {
353: my ($r, $uname, $udom, $thisdisfn, $current_disk_usage, $disk_quota) = @_;
354: &Apache::loncommon::content_type($r,'text/html');
355: $r->send_http_header;
356:
357: my $formaction='/priv'.$thisdisfn.'/';
358: $formaction=~s|/+|/|g;
359: &Apache::lonhtmlcommon::store_recent('construct',$formaction,$formaction);
360:
361: &Apache::lonhtmlcommon::clear_breadcrumbs();
362: &Apache::lonhtmlcommon::add_breadcrumb({
363: 'text' => 'Authoring Space',
364: 'href' => &Apache::loncommon::authorspace($formaction),
365: });
366: # breadcrumbs (and tools) will be created
367: # in start_page->bodytag->innerregister
368:
369: $env{'request.noversionuri'}=$formaction;
370: my $js = '<script type="text/javascript"
371: src="/res/adm/includes/file_upload.js"></script>';
372: $r->print(&Apache::loncommon::start_page('Authoring Space', $js));
373:
374: $disk_quota = 1024 * $disk_quota; # convert from MB to kB
375:
376: $r->print(&Apache::loncommon::head_subbox(
377: '<div style="float:right;padding-top:0;margin-top;0">'
378: .&Apache::lonhtmlcommon::display_usage($current_disk_usage,
379: $disk_quota,'authoring')
380: .'</div>'
381: .&Apache::loncommon::CSTR_pageheader()));
382:
383: my $esc_thisdisfn = &Apache::loncommon::escape_single($thisdisfn);
384: my $doctitle = 'LON-CAPA '.&mt('Authoring Space');
385: my $newname = &mt('New Name');
386: my $pubdirscript=(<<ENDPUBDIRSCRIPT);
387: <script type="text/javascript">
388: top.document.title = '$esc_thisdisfn/ - $doctitle';
389: // Store directory location for menu bar to find
390:
391: parent.lastknownpriv='/priv$esc_thisdisfn/';
392:
393: // Confirmation dialogues
394:
395: function currdiract(theform) {
396: if (theform.dirtask.options[theform.dirtask.selectedIndex].value == 'publish') {
397: document.publishdir.filename.value = theform.filename.value;
398: document.publishdir.submit();
399: }
400: if (theform.dirtask.options[theform.dirtask.selectedIndex].value == 'editmeta') {
401: top.location=theform.filename.value+'default.meta'
402: }
403: if (theform.dirtask.options[theform.dirtask.selectedIndex].value == 'printdir' ) {
404: document.printdir.postdata.value=theform.filename.value
405: document.printdir.submit();
406: }
407: if (theform.dirtask.options[theform.dirtask.selectedIndex].value == "delete") {
408: var delform = document.delresource
409: delform.filename.value = theform.filename.value
410: delform.submit()
411: }
412: }
413:
414: function checkUpload(theform) {
415: if (theform.file == '') {
416: alert("Please use 'Browse..' to choose a file first, before uploading")
417: return
418: }
419: theform.submit()
420: }
421:
422: function SetPubDir(theform,printForm) {
423: if (theform.diraction.options[theform.diraction.selectedIndex].value == "open") {
424: top.location = theform.openname.value
425: return
426: }
427: if (theform.diraction.options[theform.diraction.selectedIndex].value == "publish") {
428: theform.submit();
429: }
430: if (theform.diraction.options[theform.diraction.selectedIndex].value == "editmeta") {
431: top.location=theform.filename.value+'default.meta'
432: }
433: if (theform.diraction.options[theform.diraction.selectedIndex].value == "printdir") {
434: theform.action = '/adm/printout'
435: theform.postdata.value = theform.filename.value
436: theform.submit()
437: }
438: if (theform.diraction.options[theform.diraction.selectedIndex].value == "delete") {
439: var delform = document.delresource
440: delform.filename.value = theform.filename.value
441: delform.submit()
442: }
443: return
444: }
445: function SetResChoice(theform) {
446: var activity = theform.reschoice.options[theform.reschoice.selectedIndex].value
447: if ((activity == 'rename') || (activity == 'copy') || (activity == 'move')) {
448: changename(theform,activity)
449: }
450: if (activity == 'publish') {
451: var pubform = document.pubresource
452: pubform.filename.value = theform.filename.value
453: pubform.submit()
454: }
455: if (activity == 'delete') {
456: var delform = document.delresource
457: delform.filename.value = theform.filename.value
458: delform.submit()
459: }
460: if (activity == 'obsolete') {
461: var pubform = document.pubresource
462: pubform.filename.value = theform.filename.value
463: pubform.makeobsolete.value=1;
464: pubform.submit()
465: }
466: if (activity == 'print') {
467: document.printresource.postdata.value = theform.filename.value
468: document.printresource.submit()
469: }
470: if (activity == 'retrieve') {
471: document.retrieveres.filename.value = theform.filename.value
472: document.retrieveres.submit()
473: }
474: if (activity == 'cleanup') {
475: document.cleanup.filename.value = theform.filename.value
476: document.cleanup.submit()
477: }
478: return
479: }
480: function changename(theform,activity) {
481: var oldname=theform.dispfilename.value;
482: var newname=prompt('$newname',oldname);
483: if (newname == "" || !newname || newname == oldname) {
484: return
485: }
486: document.moveresource.newfilename.value = newname
487: document.moveresource.filename.value = theform.filename.value
488: document.moveresource.action.value = activity
489: document.moveresource.submit();
490: }
491: </script>
492: ENDPUBDIRSCRIPT
493: $r->print($pubdirscript);
494: }
495:
496: sub dircontrols {
497: my ($r,$uname,$udom,$thisdisfn, $current_disk_usage, $disk_quota) = @_;
498: my %lt=&Apache::lonlocal::texthash(
499: cnpd => 'Cannot publish directory',
500: cnrd => 'Cannot retrieve directory',
501: mcdi => 'Must create new subdirectory inside a directory',
502: pubr => 'Publish this Resource',
503: pubd => 'Publish this Directory',
504: dedr => 'Delete Directory',
505: rtrv => 'Retrieve Old Version',
506: list => 'List Directory',
507: uplo => 'Upload file',
508: dele => 'Delete',
509: edit => 'Edit Metadata',
510: sela => 'Select Action',
511: nfil => 'New file',
512: nhtm => 'New HTML file',
513: nprb => 'New problem',
514: npag => 'New assembled page',
515: nseq => 'New assembled sequence',
516: ncrf => 'New custom rights file',
517: nsty => 'New style file',
518: nlib => 'New library file',
519: nbt => 'New bridgetask file',
520: nsub => 'New subdirectory',
521: renm => 'Rename current file to',
522: move => 'Move current file to',
523: copy => 'Copy current file to',
524: type => 'Type Name Here',
525: go => 'Go',
526: prnt => 'Print contents of directory',
527: crea => 'Create a new directory or LON-CAPA document',
528: qs => 'Quick Search',
529: cs => 'Case Sensitive',
530: re => 'Regular Expression',
531: acti => 'Actions for current directory',
532: updc => 'Upload a new document',
533: pick => 'Please select an action to perform using the new filename',
534: );
535: my $mytype = $lt{'type'}; # avoid conflict with " and ' in javascript
536: # Calculate free space in bytes.
537: # $disk_quota is in MB and $current_disk_usage is in kB
538: my $free_space = 1024 * ((1024 * $disk_quota) - $current_disk_usage);
539: $r->printf(<<END,&Apache::loncommon::help_open_topic('Quicksearch'));
540: <div class="LC_columnSection">
541: <div>
542: <form name="curractions" method="post" action="">
543: <fieldset>
544: <legend>$lt{'acti'}</legend>
545: <select name="dirtask" onchange="currdiract(this.form)">
546: <option>$lt{'sela'}</option>
547: <option value="publish">$lt{'pubd'}</option>
548: <option value="editmeta">$lt{'edit'}</option>
549: <option value="printdir">$lt{'prnt'}</option>
550: <option value="delete">$lt{'dedr'}</option>
551: </select>
552: <input type="hidden" name="filename" value="/priv$thisdisfn/" />
553: </fieldset>
554: </form>
555: <form name="publishdir" method="post" action="/adm/publish" target="_parent">
556: <input type="hidden" name="pubrec" value="" />
557: <input type="hidden" name="filename" value="" />
558: </form>
559: <form name="printdir" method="post" action="/adm/printout" target="_parent">
560: <input type="hidden" name="postdata" value="" />
561: </form>
562: </div>
563:
564: <div>
565: <form name="upublisher" enctype="multipart/form-data" method="post" action="/adm/upload" target="_parent">
566: <fieldset>
567: <legend>$lt{'updc'}</legend>
568: <input type="hidden" name="filename" value="/priv$thisdisfn/" />
569: <input type="file" name="upfile" class="flUpload testclass" size="20" />
570: <input type="hidden" id="free_space" value=$free_space />
571: <input type="button" value="$lt{'uplo'}" onclick="checkUpload(this.form)" />
572: </fieldset>
573: </form>
574: </div>
575:
576: <div>
577: <form name="fileaction" method="post" action="/adm/cfile" target="_parent">
578: <fieldset>
579: <legend>$lt{'crea'}</legend>
580: <span class="LC_nobreak">
581: <input type="hidden" name="filename" value="/priv$thisdisfn/" />
582: <script type="text/javascript">
583: function validate_go() {
584: var selected = document.fileaction.action.selectedIndex;
585: if (selected == 0) {
586: alert('$lt{'pick'}');
587: } else {
588: document.fileaction.submit();
589: }
590: }
591: </script>
592: <select name="action">
593: <option value="none">$lt{'sela'}</option>
594: <option value="newfile">$lt{'nfil'}:</option>
595: <option value="newhtmlfile">$lt{'nhtm'}:</option>
596: <option value="newproblemfile">$lt{'nprb'}:</option>
597: <option value="newpagefile">$lt{'npag'}:</option>
598: <option value="newsequencefile">$lt{'nseq'}:</option>
599: <option value="newrightsfile">$lt{'ncrf'}:</option>
600: <option value="newstyfile">$lt{'nsty'}:</option>
601: <option value="newtaskfile">$lt{'nbt'}:</option>
602: <option value="newlibraryfile">$lt{'nlib'}:</option>
603: <option value="newdir">$lt{'nsub'}:</option>
604: </select> <input type="text" name="newfilename" placeholder="$lt{'type'}" value="" onfocus="if (this.value == is.empty()) this.value=''" /> <input type="button" value="Go" onclick="validate_go();" />
605: <br />
606: <span>Quickactions:
607: <input type="hidden" name="mode"/>
608: <a href="javascript:void(0)" onclick="javascript:validate_action('blank')">
609: <img src="/adm/lonIcons/unknown.gif" title="Create blank problem file"></a>
610: <a href="javascript:void(0)" onclick="javascript:validate_action('problemtempl')">
611: <img src="/adm/lonIcons/problem.gif" title="Create new problem from template"></a>
612: <a href="javascript:void(0)" onclick="javascript:validate_action('blankhtml')">
613: <img src="/adm/lonIcons/html.gif" title="Create new blank HTML file"></a>
614: <a href="javascript:void(0)" onclick="javascript:validate_action('folder')">
615: <img src="/adm/lonIcons/navmap.folder.closed.gif" title="Create new subdirectory"></a>
616: </span>
617: <script type="text/javascript">
618: function validate_action(action){
619:
620: if (document.getElementsByName(\'newfilename\')[0].value != \'\'){
621: if (action == "blank") {
622: document.fileaction.action.value=\'newproblemfile\';
623: document.fileaction.mode.value=\'blank\';
624: } else if (action == "problemtempl") {
625: document.fileaction.action.value=\'newproblemfile\';
626: validate_go();
627: } else if (action == "blankhtml") {
628: document.fileaction.action.value=\'newhtmlfile\';
629: validate_go();
630: } else if (action == "folder") {
631: document.fileaction.action.value=\'newdir\';
632: document.fileaction.mode.value=\'folder\';
633: }
634: fileaction.submit();
635: } else {
636: alert(\'Please specify file name.\');
637: // TODO: ask for filename? if so, do some refactoring
638:
639: }
640: }
641: </script>
642: </span>
643: </fieldset>
644: </form>
645: </div>
646: <div>
647: <fieldset style="display:inline">
648: <legend>$lt{'qs'}</legend>
649: <script type="text/javascript" src="/adm/quicksearch/quicksearch.js"></script>
650: <input type="text" id="quickfilter" placeholder="Enter search term" onkeyup="applyFilter()"/>
651: <input type="button" value="Clear" onclick="document.getElementById(\'quickfilter\').value=\'\'; applyFilter()" />
652: %s
653: <br />
654: <label><input type="checkbox" id="casesens" onchange="applyFilter()"/>$lt{'cs'} </label>
655: <label><input type="checkbox" id="regex" onchange="applyFilter()"/>$lt{'re'} </label>
656: </fieldset>
657: </div>
658: </div>
659: END
660: }
661:
662: sub resourceactions {
663: my ($r,$uname,$udom,$thisdisfn) = @_;
664: $r->print(<<END);
665: <form name="moveresource" action="/adm/cfile" target="_parent" method="post">
666: <input type="hidden" name="filename" value="" />
667: <input type="hidden" name="newfilename" value="" />
668: <input type="hidden" name="action" value="" />
669: </form>
670: <form name="delresource" action="/adm/cfile" target="_parent" method="post">
671: <input type="hidden" name="filename" value="" />
672: <input type="hidden" name="action" value="delete" />
673: </form>
674: <form name="pubresource" action="/adm/publish" target="_parent" method="post">
675: <input type="hidden" name="filename" value="" />
676: <input type="hidden" name="makeobsolete" value="0" />
677: </form>
678: <form name="printresource" action="/adm/printout" target="_parent" method="post">
679: <input type="hidden" name="postdata" value="" />
680: </form>
681: <form name="retrieveres" action="/adm/retrieve" target="_parent" method="post">
682: <input type="hidden" name="filename" value="" />
683: </form>
684: <form name="cleanup" action="/adm/cleanup" target="_parent" method="post">
685: <input type="hidden" name="filename" value="" />
686: </form>
687: END
688: }
689:
690: #
691: # Get the title string or "[untitled]" if the file has no title metadata:
692: # Without the latter substitution, it's impossible to examine metadata for
693: # untitled resources. Resources may be legitimately untitled, to prevent
694: # searches from locating them.
695: #
696: # $str = getTitleString($fullname);
697: # $fullname - Fully qualified filename to check.
698: #
699: sub getTitleString {
700: my $fullname = shift;
701: my $title = &Apache::lonnet::metadata($fullname, 'title');
702:
703: unless ($title) {
704: $title = "[".&mt('untitled')."]";
705: }
706: return $title;
707: }
708:
709: sub getCopyRightString {
710: my $fullname = shift;
711: return &Apache::lonnet::metadata($fullname, 'copyright');
712: }
713:
714: sub getSourceRightString {
715: my $fullname = shift;
716: return &Apache::lonnet::metadata($fullname, 'sourceavail');
717: }
718: #
719: # Put out a directory table row:
720: # putdirectory(r, base, here, dirname, modtime, targetdir, bombs, numdir)
721: # r - Apache request object.
722: # reqfile - File in request.
723: # here - Where we are in directory tree.
724: # dirname - Name of directory special file.
725: # modtime - Encoded modification time.
726: # targetdir - Publication target directory.
727: # bombs - Reference to hash of URLs with runtime error messages.
728: # numdir - Reference to scalar used to track number of sub-directories
729: # in directory (used in form name for each "actions" dropdown).
730: #
731: sub putdirectory {
732: my ($r, $reqfile, $here, $dirname, $modtime, $targetdir, $bombs, $numdir) = @_;
733:
734: # construct the display filename: the directory name unless ..:
735:
736: my $actionitem;
737:
738: my $disfilename = $dirname;
739: # Don't display directory itself, and there is no way up from root directory
740: unless ((($dirname eq '..') && ($reqfile=~/^\/[^\/]+\/[^\/]+$/)) || ($dirname eq '.')) {
741: my $kaputt=0;
742: if (ref($bombs) eq 'HASH') {
743: foreach my $key (keys(%{$bombs})) {
744: my $currentdir = &Apache::lonnet::declutter("$targetdir/$disfilename");
745: if (($key) =~ m{^\Q$currentdir\E/}) { $kaputt=1; last; }
746: }
747: }
748: #
749: # Get the metadata from that directory's default.meta to display titles
750: #
751: %Apache::lonpublisher::metadatafields=();
752: %Apache::lonpublisher::metadatakeys=();
753: &Apache::lonpublisher::metaeval(
754: &Apache::lonnet::getfile($r->dir_config('lonDocRoot').$here.'/'.$dirname.'/default.meta')
755: );
756: if ($dirname eq '..') {
757: $actionitem = &mt('Go to ...');
758: $disfilename = '<i>'.&mt('Parent Directory').'</i>';
759: } else {
760: $actionitem =
761: '<form name="dirselect_'.$$numdir.
762: '" action="/adm/publish" target="_parent">'.
763: '<select name="diraction" onchange="SetPubDir(this.form,document)">'.
764: '<option selected="selected">'.&mt('Select action').'</option>'.
765: '<option value="open">'.&mt('Open').'</option>'.
766: '<option value="publish">'.&mt('Publish').'</option>'.
767: '<option value="editmeta">'.&mt('Edit Metadata').'</option>'.
768: '<option value="printdir">'.&mt('Print directory').'</option>'.
769: '<option value="delete">'.&mt('Delete directory').'</option>'.
770: '</select>'.
771: '<input type="hidden" name="filename" value="'.&HTML::Entities::encode($here.'/'.$dirname,'<>&"').'/" />'.
772: '<input type="hidden" name="openname" value="'.$here.'/'.$dirname.'/" />'.
773: '<input type="hidden" name="postdata" value="" />'.
774: '</form>';
775: $$numdir ++;
776: }
777: $r->print('<tr class="LC_browser_folder">'.
778: '<td><img src="'.
779: $Apache::lonnet::perlvar{'lonIconsURL'}.'/navmap.folder.closed.gif" alt="folder" /></td>'.
780: '<td>'.$actionitem.'</td>'.
781: '<td><span class="LC_filename"><a href="'.&HTML::Entities::encode($here.'/'.$dirname,'<>&"').'/" target="_parent">'.
782: $disfilename.'</a></span></td>'.
783: '<td colspan="3">'.($kaputt?&Apache::lonhtmlcommon::authorbombs($targetdir.'/'.$disfilename.'/'):'').$Apache::lonpublisher::metadatafields{'title'});
784: if ($Apache::lonpublisher::metadatafields{'subject'} ne '') {
785: $r->print(' <i>'.
786: $Apache::lonpublisher::metadatafields{'subject'}.
787: '</i> ');
788: }
789: $r->print($Apache::lonpublisher::metadatafields{'keywords'}.'</td>'.
790: '<td>'.&Apache::lonlocal::locallocaltime($modtime).'</td>'.
791: '<td></td>'.
792: "</tr>\n");
793: }
794: return;
795: }
796:
797: sub getTitle {
798: my ($resdir, $targetdir, $filename, $linkfilename, $meta_same, $bombs) = @_;
799: my $title='';
800: my $titleString = &getTitleString($targetdir.'/'.$filename);
801: if (-e $resdir.'/'.$filename) {
802: $title = '<a href="'.$targetdir.'/'.$filename.
803: '.meta" target="cat">'.$titleString.'</a>';
804: if (!$meta_same) {
805: $title = &mt('Metadata Modified').'<br />'.$title.
806: '<br />'.
807: &Apache::loncommon::modal_link(
808: '/adm/diff?filename='.$linkfilename.'.meta'.'&versiontwo=priv',
809: &mt('Metadata Diffs'),600,500);
810: $title.="\n".'<br />'.
811: &Apache::loncommon::modal_link(
812: '/adm/retrieve?filename='.$linkfilename.'.meta&inhibitmenu=yes&add_modal=yes',
813: &mt('Retrieve Metadata'),600,500);
814: }
815: }
816: # Allow editing metadata of published and unpublished resources
817: $title .= "\n".'<br />' if ($title);
818: $title .= '<a href="'.$linkfilename.'.meta">'.
819: ($$bombs{&Apache::lonnet::declutter($targetdir.'/'.$filename)}?
820: '<img src="/adm/lonMisc/bomb.gif" border="0" alt="'.&mt('bomb').'" />':
821: &mt('Edit Metadata')).
822: '</a>';
823:
824: return ($title, $titleString);
825: }
826:
827:
828: sub isMetaSame {
829: my ($cstr_dir, $resdir, $filename) = @_;
830: my $meta_cmtime = (stat($cstr_dir.'/'.$filename.'.meta'))[9];
831: my $meta_rmtime = (stat($resdir.'/'.$filename.'.meta'))[9];
832: return (&Apache::londiff::are_different_files($resdir.'/'.$filename.'.meta',
833: $cstr_dir.'/'.$filename.'.meta') && $meta_rmtime < $meta_cmtime)
834: ? 0 : 1;
835: }
836:
837:
838: sub getStatus {
839: my ($resdir, $targetdir, $cstr_dir, $filename,
840: $linkfilename, $cmtime, $meta_same) = @_;
841: my $pubstatus = 'unpublished';
842: my $status = &mt('Unpublished');
843:
844: if (-e $resdir.'/'.$filename) {
845: my $same = 0;
846: if ((stat($resdir.'/'.$filename))[9] >= $cmtime) {
847: $same = 1;
848: } else {
849: if (&Apache::londiff::are_different_files($resdir.'/'.$filename,
850: $cstr_dir.'/'.$filename)) {
851: $same = 0;
852: } else {
853: $same = 1;
854: }
855: }
856:
857: my $rights_status =
858: &mt(&getCopyRightString($targetdir.'/'.$filename)).', ';
859:
860: my %lt_SourceRight = &Apache::lonlocal::texthash(
861: 'open' => 'Source: open',
862: 'closed' => 'Source: closed',
863: );
864: $rights_status .=
865: $lt_SourceRight{&getSourceRightString($targetdir.'/'.$filename)};
866:
867: if ($same) {
868: if (&Apache::lonnet::metadata($targetdir.'/'.$filename,'obsolete')) {
869: $pubstatus = 'obsolete';
870: $status=&mt('Obsolete');
871: } else {
872: if (!$meta_same) {
873: $pubstatus = 'metamodified';
874: } else {
875: $pubstatus = 'published';
876: }
877: $status=&mt('Published').
878: '<br />'. $rights_status;
879: }
880: } else {
881: $pubstatus = 'modified';
882: $status=&mt('Modified').
883: '<br />'. $rights_status;
884: if (&Apache::loncommon::fileembstyle(($filename=~/\.(\w+)$/)) eq 'ssi') {
885: $status.='<br />'.
886: &Apache::loncommon::modal_link(
887: '/adm/diff?filename='.$linkfilename.'&versiontwo=priv',
888: &mt('Diffs'),600,500);
889: }
890: }
891:
892: $status.="\n".'<br />'.
893: &Apache::loncommon::modal_link(
894: '/adm/retrieve?filename='.$linkfilename.'&inhibitmenu=yes&add_modal=yes',&mt('Retrieve'),600,500);
895: }
896:
897: return ($status, $pubstatus);
898: }
899:
900:
901: #
902: # Put a table row for a file resource.
903: #
904: sub putresource {
905: my ($r, $udom, $uname, $filename, $thisdisfn, $resdir, $targetdir,
906: $linkdir, $cmtime, $size, $numres, $linkfilename, $title,
907: $status, $pubstatus) = @_;
908: &Apache::lonnet::devalidate_cache_new('meta',$targetdir.'/'.$filename);
909:
910: my $editlink='';
911: my $editlink2='';
912: if ($filename=~/\.(xml|html|htm|xhtml|xhtm|sty)$/) {
913: $editlink=' <br />(<a href="'.$linkdir.'/'.$filename.'?editmode=Edit&problemmode=edit">'.&mt('Edit').'</a>)';
914: }
915: if ($filename=~/$LONCAPA::assess_re/) {
916: $editlink=' (<a href="'.$linkdir.'/'.$filename.'?editmode=Edit&problemmode=editxml">'.&mt('EditXML').'</a>)';
917: $editlink2=' <br />(<a href="'.$linkdir.'/'.$filename.'?editmode=Edit&problemmode=edit">'.&mt('Edit').'</a>)';
918: }
919: if ($filename=~/\.(xml|html|htm|xhtml|xhtm)$/ || $filename=~/$LONCAPA::assess_re/) {
920: if ($env{'browser.type'} ne 'explorer' || $env{'browser.version'} > 9) {
921: my $daxeurl = '/daxepage'.$linkdir.'/'.$filename;
922: $editlink .= ' (<a href="'.$daxeurl.'" target="_blank">Daxe</a>)';
923: }
924: }
925: if ($filename=~/\.(problem|exam|quiz|assess|survey|form|library|xml|html|htm|xhtml|xhtm|sty)$/) {
926: $editlink.=' (<a href="/adm/cleanup?filename='.$linkfilename.'" target="_parent">'.&mt('Clean Up').')</a>';
927: }
928: if ($filename=~/\.(zip|tar|bz2|gz|tar.gz|tar.bz2|tgz)$/) {
929: $editlink=' (<a target="_parent" href="/adm/cfile?decompress='.$linkfilename.'">'.&mt('Decompress').'</a>)';
930: }
931: my $publish_button = (-e $resdir.'/'.$filename) ? &mt('Re-publish') : &mt('Publish');
932: my $pub_select = '';
933: &create_pubselect($r,\$pub_select,$udom,$uname,$thisdisfn,$filename,$resdir,$pubstatus,$publish_button,$numres);
934: $r->print(&Apache::loncommon::start_data_table_row().
935: '<td>'.($filename=~/[\#\~]$/?' ':
936: '<img src="'.&Apache::loncommon::icon($filename).'" alt="" />').'</td>'.
937: '<td>'.$pub_select.'</td>'.
938: '<td><span class="LC_filename">'.
939: '<a href="'.$linkdir.'/'.$filename.'" target="_parent">'.
940: $filename.'</a></span>'.$editlink2.$editlink.
941: '</td>'.
942: '<td>'.$title.'</td>'.
943: '<td class="LC_browser_file_'.$pubstatus.'"> </td>'. # Display publication status
944: '<td>'.$status.'</td>'.
945: '<td>'.&Apache::lonlocal::locallocaltime($cmtime).'</td>'.
946: '<td>'.sprintf("%.1f",$size).'</td>'.
947: &Apache::loncommon::end_data_table_row()
948: );
949: return;
950: }
951:
952: sub create_pubselect {
953: my ($r,$pub_select,$udom,$uname,$thisdisfn,$filename,$resdir,$pubstatus,$publish_button,$numres) = @_;
954: $$pub_select = '
955: <form name="resselect_'.$$numres.'" action="">
956: <select name="reschoice" onchange="SetResChoice(this.form)">
957: <option>'.&mt('Select action').'</option>'.
958: '<option value="copy">'.&mt('Copy').'</option>';
959: if ($pubstatus eq 'obsolete' || $pubstatus eq 'unpublished') {
960: $$pub_select .=
961: '<option value="rename">'.&mt('Rename').'</option>'.
962: '<option value="move">'.&mt('Move').'</option>'.
963: '<option value="delete">'.&mt('Delete').'</option>';
964: } else {
965: $$pub_select .= '
966: <option value="obsolete">'.&mt('Mark obsolete').'</option>';
967: }
968: # check for versions
969: my $versions = &check_for_versions($r,'/'.$filename,$udom,$uname);
970: if ($versions > 0) {
971: $$pub_select .='
972: <option value="retrieve">'.&mt('Retrieve old version').'</option>';
973: }
974: $$pub_select .= '
975: <option value="publish">'.$publish_button.'</option>'.
976: '<option value="cleanup">'.&mt('Clean up').'</option>'.
977: '<option value="print">'.&mt('Print').'</option>'.
978: '</select>
979: <input type="hidden" name="filename" value="/priv'.
980: &HTML::Entities::encode($thisdisfn.'/'.$filename,'<>&"').'" />
981: <input type="hidden" name="dispfilename" value="'.
982: &HTML::Entities::encode($filename).'" /></form>';
983: $$numres ++;
984: }
985:
986: sub check_for_versions {
987: my ($r,$fn,$udom,$uname) = @_;
988: my $versions = 0;
989: my $docroot=$r->dir_config('lonDocRoot');
990: my $resfn=$docroot.'/res/'.$udom.'/'.$uname.$fn;
991: my $resdir=$resfn;
992: $resdir=~s/\/[^\/]+$/\//;
993: $fn=~/\/([^\/]+)\.(\w+)$/;
994: my $main=$1;
995: my $suffix=$2;
996: opendir(DIR,$resdir);
997: while (my $filename=readdir(DIR)) {
998: if ($filename=~/^\Q$main\E\.(\d+)\.\Q$suffix\E$/) {
999: $versions ++;
1000: }
1001: }
1002: closedir(DIR);
1003: return $versions;
1004: }
1005:
1006: sub prepareJsonTranslations {
1007: my $json =
1008: '{"translations":{'.
1009: '"edit":"'.&mt('Edit').'",'.
1010: '"editxml":"'.&mt('EditXML').'",'.
1011: '"editmeta":"'.&mt('Edit Metadata').'",'.
1012: '"obsolete":"'.&mt('Obsolete').'",'.
1013: '"modified":"'.&mt('Modified').'",'.
1014: '"published":"'.&mt('Published').'",'.
1015: '"unpublished":"'.&mt('Unpublished').'",'.
1016: '"diff":"'.&mt('Diff').'",'.
1017: '"retrieve":"'.&mt('Retrieve').'",'.
1018: '"directory":"'.&mt('Directory').'",'.
1019: '"results":"'.&mt('Show results for keyword:').'"'.
1020: '}}';
1021: }
1022:
1023: # gathers all files in the working directory except the ones that are already on screen
1024: sub prepareJsonData {
1025: my ($uname, $udom, $pathToSkip) = @_;
1026: my $path = "/home/httpd/html/priv/$udom/$uname/";
1027:
1028: # maximum number of entries, to limit workload and required storage space
1029: my $entries = 100;
1030: my $firstfile = 1;
1031: my $firstdir = 1;
1032:
1033: my $json = '{"resources":[';
1034: $json .= &prepareJsonData_rec($path, \$entries, \$firstfile, \$firstdir, $pathToSkip);
1035: $json .= ']}';
1036:
1037: # if the json string is invalid the whole search breaks.
1038: # so we want to make sure that the string is valid in any case.
1039: $json =~ s/,\s*,/,/g;
1040: $json =~ s/\}\s*\{/\},\{/g;
1041: $json =~ s/\}\s*,\s*\]/\}\]/g;
1042: return $json;
1043: }
1044:
1045: # recursive part of json file gathering
1046: sub prepareJsonData_rec {
1047: my ($path, $entries, $firstfile, $firstdir, $pathToSkip) = @_;
1048: my $json;
1049: my $skipThisFolder = $path =~ m/$pathToSkip\/$/?1:0;
1050:
1051: my @dirs;
1052: my @resources;
1053: my @ignored = qw(bak log meta save . ..);
1054:
1055: # Phase 1: Gathering
1056: opendir(DIR,$path);
1057: my @files=sort {uc($a) cmp uc($b)} (readdir(DIR));
1058: foreach my $filename (@files) {
1059: next if ($filename eq '.DS_Store');
1060:
1061: # gather all resources
1062: if ($filename !~ /\./) {
1063: # its a folder
1064: push(@dirs, $filename);
1065: } else {
1066: # only push files we dont want to ignore
1067: next if ($skipThisFolder);
1068:
1069: $filename =~ /\.(\w+?)$/;
1070: unless (grep /$1/, @ignored) {
1071: push(@resources, $filename);
1072: }
1073: }
1074: }
1075: closedir(DIR);
1076: # nothing to do here if both lists are empty
1077: return unless ( @dirs || @resources );
1078:
1079: # Phase 2: Working
1080: $$firstfile = 1;
1081:
1082: foreach (@dirs) {
1083: $json .= '{"name":"'.$_.'",'.
1084: '"path":"'.$path.$_.'",'.
1085: '"title":"",'.
1086: '"status":"",'.
1087: '"cmtime":""},';
1088: }
1089:
1090: foreach (@resources) {
1091: last if ($$entries < 1);
1092: my $title = &getTitleString($path.$_);
1093:
1094: my $privpath = $path.$_;
1095: my $respath = $privpath;
1096: $respath =~ s/httpd\/html\/priv\//httpd\/html\/res\//;
1097:
1098: my $cmtime = (stat($privpath))[9];
1099: my $rmtime = (stat($respath))[9];
1100:
1101: unless ($$firstfile) { $json .= ','; } else { $$firstfile = 0; }
1102:
1103: my $status = 'unpublished';
1104:
1105: # if a resource is published, the published version (/html/res/filepath) gets its own modification time
1106: # this is newer or equal then the version in your authoring space (/html/priv/filepath)
1107: if ($rmtime >= $cmtime) {
1108: # obsolete
1109: if (&Apache::lonnet::metadata($respath, 'obsolete')) {
1110: $status = 'obsolete';
1111: }else{
1112: $status = 'published';
1113: }
1114: } else {
1115: $status = 'modified';
1116: }
1117:
1118: $json .= '{"name":"'.$_.'",'.
1119: '"path":"'.$path.'",'.
1120: '"title":"'.$title.'",'.
1121: '"status":"'.$status.'",'.
1122: '"cmtime":"'.&Apache::lonlocal::locallocaltime($cmtime).'"}';
1123: $$entries--;
1124: }
1125:
1126: foreach(@dirs) {
1127: next if ($$entries < 1);
1128: $json .= ',';
1129: $json .= &prepareJsonData_rec
1130: ($path.$_.'/', $entries, $firstfile, $firstdir, $pathToSkip);
1131: }
1132: return $json;
1133: }
1134: 1;
1135: __END__
1136:
1137:
1138: =head1 NAME
1139:
1140: Apache::lonpubdir - Authoring space directory lister
1141:
1142: =head1 SYNOPSIS
1143:
1144: Invoked (for various locations) by /etc/httpd/conf/srm.conf:
1145:
1146: <LocationMatch "^/+priv.*/$">
1147: PerlAccessHandler Apache::loncacc
1148: SetHandler perl-script
1149: PerlHandler Apache::lonpubdir
1150: ErrorDocument 403 /adm/login
1151: ErrorDocument 404 /adm/notfound.html
1152: ErrorDocument 406 /adm/unauthorized.html
1153: ErrorDocument 500 /adm/errorhandler
1154: </LocationMatch>
1155:
1156: <Location /adm/pubdir>
1157: PerlAccessHandler Apache::lonacc
1158: SetHandler perl-script
1159: PerlHandler Apache::lonpubdir
1160: ErrorDocument 403 /adm/login
1161: ErrorDocument 404 /adm/notfound.html
1162: ErrorDocument 406 /adm/unauthorized.html
1163: ErrorDocument 500 /adm/errorhandler
1164: </Location>
1165:
1166: =head1 INTRODUCTION
1167:
1168: This module publishes a directory of files.
1169:
1170: This is part of the LearningOnline Network with CAPA project
1171: described at http://www.lon-capa.org.
1172:
1173: =head1 HANDLER SUBROUTINE
1174:
1175: This routine is called by Apache and mod_perl.
1176:
1177: =over 4
1178:
1179: =item *
1180:
1181: read in information
1182:
1183: =item *
1184:
1185: start page output
1186:
1187: =item *
1188:
1189: run through list of files and attempt to publish unhidden files
1190:
1191: =back
1192:
1193: =head1 SUBROUTINES:
1194:
1195: =over
1196:
1197: =item startpage($r, $uame, $udom, $thisdisfn)
1198:
1199: Output the header of the page. This includes:
1200: - The HTML header
1201: - The H1/H3 stuff which includes the directory.
1202:
1203: startpage($r, $uame, $udom, $thisdisfn);
1204: $r - The apache request object.
1205: $uname - User name.
1206: $udom - Domain name the user is logged in under.
1207: $thisdisfn - Displayable version of the filename.
1208:
1209: =item getTitleString($fullname)
1210:
1211: Get the title string or "[untitled]" if the file has no title metadata:
1212: Without the latter substitution, it's impossible to examine metadata for
1213: untitled resources. Resources may be legitimately untitled, to prevent
1214: searches from locating them.
1215:
1216: $str = getTitleString($fullname);
1217: $fullname - Fully qualified filename to check.
1218:
1219: =item putdirectory($r, $base, $here, $dirname, $modtime, $targetdir, $bombs,
1220: $numdir)
1221:
1222: Put out a directory table row:
1223:
1224: $r - Apache request object.
1225: $reqfile - File in request.
1226: $here - Where we are in directory tree.
1227: $dirname - Name of directory special file.
1228: $modtime - Encoded modification time.
1229: targetdir - Publication target directory.
1230: bombs - Reference to hash of URLs with runtime error messages.
1231: numdir - Reference to scalar used to track number of sub-directories
1232: in directory (used in form name for each "actions" dropdown).
1233:
1234: =back
1235:
1236: =cut
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