1: # The LearningOnline Network with CAPA
2: #
3: # Directory Indexer
4: #
5: # YEAR=1999
6: # 5/21/99, 5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14 Gerd Kortemeyer)
7: # 11/23 Gerd Kortemeyer
8: # YEAR=2000
9: # 07/20-08/04 H.K. Ng
10: # YEAR=2001
11: # 05/9-05/19/2001 H. K. Ng
12: # 05/21/2001 H. K. Ng
13: # 05/23/2001 H. K. Ng
14: # 5/31,6/1,6/2,6/15 Scott Harrison
15: # 6/26,7/8 H. K. Ng
16: # 8/6,8/7,8/10 Scott Harrison
17: # 8/14 H. K. Ng
18: # 8/28,10/15,11/28 Scott Harrison
19: #
20: # $Id: lonindexer.pm,v 1.23 2001/11/28 16:47:25 harris41 Exp $
21: ###
22:
23: ###############################################################################
24: ## ##
25: ## ORGANIZATION OF THIS PERL MODULE ##
26: ## ##
27: ## 1. Description of functions ##
28: ## 2. Modules used by this module ##
29: ## 3. Choices for different output views (detailed, summary, xml, etc) ##
30: ## 4. BEGIN block (to be run once after compilation) ##
31: ## 5. Handling routine called via Apache and mod_perl ##
32: ## 6. Other subroutines ##
33: ## ##
34: ###############################################################################
35:
36: package Apache::lonindexer;
37:
38: # ------------------------------------------------- modules used by this module
39: use strict;
40: use Apache::lonnet();
41: use Apache::Constants qw(:common);
42: use Apache::File;
43: use GDBM_File;
44:
45: # ---------------------------------------- variables used throughout the module
46: my %hash; # tied to a user-specific gdbm file
47: my %dirs; # keys are directories, values are the open/close status
48: my %language; # has the reference information present in language.tab
49:
50: # ----- Values which are set by the handler subroutine and are accessible to
51: # ----- other methods.
52: my $extrafield; # default extra table cell
53: my $fnum; # file counter
54: my $dnum; # directory counter
55:
56: # ---------------------------------------------------------------------- BEGIN
57: sub BEGIN {
58: my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.
59: '/language.tab');
60: map {
61: $_=~/(\w+)\s+([\w\s\-]+)/;
62: $language{$1}=$2;
63: } <$fh>;
64: }
65:
66: # ----------------------------- Handling routine called via Apache and mod_perl
67: sub handler {
68: my $r = shift;
69: $r->content_type('text/html');
70: $r->send_http_header;
71: return OK if $r->header_only;
72: $fnum=0;
73: $dnum=0;
74: untie %hash;
75:
76: # ------------------------------------- read in machine configuration variables
77: my $iconpath= $r->dir_config('lonIconsURL') . "/";
78: my $domain = $r->dir_config('lonDefDomain');
79: my $role = $r->dir_config('lonRole');
80: my $loadlim = $r->dir_config('lonLoadLim');
81: my $servadm = $r->dir_config('lonAdmEMail');
82: my $sysadm = $r->dir_config('lonSysEMail');
83: my $lonhost = $r->dir_config('lonHostID');
84: my $tabdir = $r->dir_config('lonTabDir');
85:
86: my $fileclr='#ffffe6';
87: my $line;
88: my (@attrchk,@openpath);
89: my $uri=$r->uri;
90:
91: # -------------------------------------- see if called from an interactive mode
92: &get_unprocessed_cgi();
93:
94: my $closebutton='';
95: my $groupimportbutton='';
96: my $colspan='';
97:
98: $extrafield='';
99: my $diropendb =
100: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_indexer.db";
101:
102: if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT,0640)) {
103: if ($ENV{'form.launch'} eq '1') {
104: &start_fresh_session();
105: }
106:
107: # -------------------- refresh environment with user database values (in %hash)
108: if ($hash{'mode_catalog'} eq 'interactive') {
109: $ENV{'form.catalogmode'}='interactive';
110: }
111: if ($hash{'mode_catalog'} eq 'groupimport') {
112: $ENV{'form.catalogmode'}='groupimport';
113: }
114:
115: # --------------------- define extra fields and buttons in case of special mode
116: if ($ENV{'form.catalogmode'} eq 'interactive') {
117: $hash{'mode_catalog'}='interactive';
118: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
119: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
120: ' border="0" /></td>';
121: $colspan=" colspan='2' ";
122: $closebutton=<<END;
123: <input type="button" name="close" value='CLOSE' onClick="self.close()">
124: END
125: }
126: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
127: $hash{'mode_catalog'}='groupimport';
128: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
129: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
130: ' border="0" /></td>';
131: $colspan=" colspan='2' ";
132: $closebutton=<<END;
133: <input type="button" name="close" value='CLOSE' onClick="self.close()">
134: END
135: $groupimportbutton=<<END;
136: <input type="button" name="groupimport" value='GROUP IMPORT'
137: onClick="javascript:select_group()">
138: END
139: }
140:
141: # ------ set catalogmodefunctions to have extra needed javascript functionality
142: my $catalogmodefunctions='';
143: if ($ENV{'form.catalogmode'} eq 'interactive' or
144: $ENV{'form.catalogmode'} eq 'groupimport') {
145: $catalogmodefunctions=<<END;
146: function select_data(title,url) {
147: changeTitle(title);
148: changeURL(url);
149: self.close();
150: }
151: function select_group() {
152: window.location="/adm/groupsort?catalogmode=groupimport&acts="+document.forms.fileattr.acts.value;
153: }
154: function changeTitle(val) {
155: if (opener.inf.document.forms.resinfo.elements.t) {
156: opener.inf.document.forms.resinfo.elements.t.value=val;
157: }
158: }
159: function changeURL(val) {
160: if (opener.inf.document.forms.resinfo.elements.u) {
161: opener.inf.document.forms.resinfo.elements.u.value=val;
162: }
163: }
164: END
165: }
166: if ($ENV{'form.catalogmode'} eq 'groupimport') {
167: $catalogmodefunctions.=<<END;
168: var acts='';
169: function queue(val) {
170: if (eval("document.forms."+val+".filelink.checked")) {
171: var l=val.length;
172: var v=val.substring(4,l);
173: document.forms.fileattr.acts.value+='1a'+v+'b';
174: }
175: else {
176: var l=val.length;
177: var v=val.substring(4,l);
178: document.forms.fileattr.acts.value+='0a'+v+'b';
179: }
180: }
181: function rep_dirpath(suffix,val) {
182: eval("document.forms.dirpath"+suffix+".acts.value=val");
183: }
184: END
185: }
186:
187: # ---------------------------------------------------------------- Print Header
188: $r->print(<<ENDHEADER);
189: <html>
190: <head>
191: <title>The LearningOnline Network With CAPA Directory Browser</title>
192:
193: <script type="text/javascript">
194: $catalogmodefunctions
195: function openWindow(url, wdwName, w, h, toolbar,scrollbar) {
196: var options = "width=" + w + ",height=" + h + ",";
197: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
198: options += "menubar=no,toolbar="+toolbar+",location=no,directories=no";
199: var newWin = window.open(url, wdwName, options);
200: newWin.focus();
201: }
202: function gothere(val) {
203: window.location=val+'?acts='+document.forms.fileattr.acts.value;
204: }
205: </script>
206:
207: </head>
208: <body bgcolor="#FFFFFF">
209: ENDHEADER
210:
211: # - Evaluate actions from previous page (both cumulatively and chronologically)
212: if ($ENV{'form.catalogmode'} eq 'groupimport') {
213: my $acts=$ENV{'form.acts'};
214: my @Acts=split(/b/,$acts);
215: my %ahash;
216: my %achash;
217: my $ac=0;
218: # some initial hashes for working with data
219: map {
220: my ($state,$ref)=split(/a/);
221: $ahash{$ref}=$state;
222: $achash{$ref}=$ac;
223: $ac++;
224: } (@Acts);
225: # sorting through the actions and changing the tied database hash
226: map {
227: my $key=$_;
228: if ($ahash{$key} eq '1') {
229: $hash{'store_'.$hash{'pre_'.$key.'_link'}}=
230: $hash{'pre_'.$key.'_title'};
231: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}}=
232: $hash{'storectr'}+0;
233: $hash{'storectr'}++;
234: }
235: if ($ahash{$key} eq '0') {
236: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
237: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
238: }
239: }
240: } sort {$achash{$a}<=>$achash{$b}} (keys %ahash);
241: # deleting the previously cached listing
242: map {
243: if ($_ =~ /^pre_/ && $_ =~/link$/) {
244: my $key = $_;
245: $key =~ s/^pre_//;
246: $key =~ s/_[^_]*$//;
247: delete $hash{'pre_'.$key.'_title'};
248: delete $hash{'pre_'.$key.'_link'};
249: }
250: } keys %hash;
251: }
252:
253: # ---------------------------------------------------------------- output title
254: $r->print('<h2><font color="#888888">The LearningOnline With CAPA '.
255: 'Network Directory Browser</font></h2>'."\n");
256: # ---------------------------------- get state of file attributes to be showing
257: if ($ENV{'form.attrs'} ne "") {
258: for (my $i=0; $i<=6; $i++) {
259: delete $hash{'display_attrs_'.$i};
260: if ($ENV{'form.attr'.$i} == 1) {
261: $attrchk[$i] = "checked";
262: $hash{'display_attrs_'.$i} = 1;
263: }
264: }
265: } else {
266: for (my $i=0; $i<=6; $i++) {
267: $attrchk[$i] = "checked" if $hash{'display_attrs_'.$i} == 1;
268: }
269: }
270: # ------------------------------- output state of file attributes to be showing
271: $r->print(<<END);
272: <b><font color="#666666">Display file attributes</font></b><br />
273: <form method="post" name="fileattr" action="$uri"
274: enctype="application/x-www-form-urlencoded">
275: <table border=0><tr>
276: <td><input type="checkbox" name="attr0" value="1" $attrchk[0] /> Size</td>
277: <td><input type="checkbox" name="attr1" value="1" $attrchk[1] /> Last access</td>
278: <td><input type="checkbox" name="attr2" value="1" $attrchk[2] /> Last modified</td>
279: <td><input type="checkbox" name="attr6" value="1" $attrchk[6] /> All versions</td>
280: </tr><tr>
281: <td><input type="checkbox" name="attr3" value="1" $attrchk[3] /> Author</td>
282: <td><input type="checkbox" name="attr4" value="1" $attrchk[4] /> Keywords</td>
283: <td><input type="checkbox" name="attr5" value="1" $attrchk[5] /> Language</td>
284: <td> </td>
285: </tr></table>
286: <input type="hidden" name="dirPointer" value="on" />
287: <input type="hidden" name="acts" value="" />
288: <input type="submit" name="attrs" value="Review" />
289: <input type="submit" name="attrs" value="Refresh" />
290: $closebutton
291: $groupimportbutton
292: </form>
293: END
294:
295: # ----------------- output starting row to the indexed file/directory hierarchy
296: my $titleclr="#ddffff";
297: $r->print("<table border=0><tr><td bgcolor=#eeeeee>\n");
298: $r->print("<table border=0><tr>\n");
299: $r->print("<td $colspan bgcolor=$titleclr><b>Name</b></td>\n");
300: $r->print("<td bgcolor=$titleclr align=right><b>Size (bytes) ".
301: "</b></td>\n") if ($hash{'display_attrs_0'} == 1);
302: $r->print("<td bgcolor=$titleclr><b>Last accessed</b></td>\n")
303: if ($hash{'display_attrs_1'} == 1);
304: $r->print("<td bgcolor=$titleclr><b>Last modified</b></td>\n")
305: if ($hash{'display_attrs_2'} == 1);
306: $r->print("<td bgcolor=$titleclr><b>Author(s)</b></td>\n")
307: if ($hash{'display_attrs_3'} == 1);
308: $r->print("<td bgcolor=$titleclr><b>Keywords</b></td>\n")
309: if ($hash{'display_attrs_4'} == 1);
310: $r->print("<td bgcolor=$titleclr><b>Language</b></td>\n")
311: if ($hash{'display_attrs_5'} == 1);
312: $r->print("</tr>");
313:
314: # ----------------- read in what directories have previously been set to "open"
315: map {
316: if ($_ =~ /^diropen_status_/) {
317: my $key = $_;
318: $key =~ s/^diropen_status_//;
319: $dirs{$key} = $hash{$_};
320: }
321: } keys %hash;
322:
323: if ($ENV{'form.openuri'}) { # take care of review and refresh options
324: my $uri=$ENV{'form.openuri'};
325: if (exists($hash{'diropen_status_'.$uri})) {
326: my $cursta = $hash{'diropen_status_'.$uri};
327: $dirs{$uri} = 'open';
328: $hash{'diropen_status_'.$uri} = 'open';
329: if ($cursta eq 'open') {
330: $dirs{$uri} = 'closed';
331: $hash{'diropen_status_'.$uri} = 'closed';
332: }
333: } else {
334: $hash{'diropen_status_'.$uri} = 'open';
335: $dirs{$uri} = 'open';
336: }
337: }
338:
339: my $bredir = $ENV{'form.dirPointer'};
340: my $toplevel;
341: my $indent = 0;
342: $uri = $uri.'/' if $uri !~ /.*\/$/;
343:
344: if ($bredir ne "on") {
345: $hash{'top.level'} = $uri;
346: $toplevel = $uri;
347:
348: } else {
349: $toplevel = $hash{'top.level'};
350: }
351:
352: # -------------------------------- if not at top level, provide an uplink arrow
353: if ($toplevel ne "/res/"){
354: my (@uri_com) = split(/\//,$uri);
355: pop @uri_com;
356: my $upone = join('/',@uri_com);
357: my @list = qw (0);
358: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
359: $indent = 1;
360: }
361:
362: # -------- recursively go through all the directories and output as appropriate
363: &scanDir ($r,$toplevel,$indent,\%hash);
364:
365: # ---------------------------- embed hidden information useful for group import
366: $r->print("<form name='fnum'>");
367: $r->print("<input type='hidden' name='fnum' value='$fnum'></form>");
368:
369: # -------------------------------------------------------------- end the tables
370: $r->print("</table>");
371: $r->print("</td></tr></table>");
372:
373: # --------------------------------------------------- end the output and return
374: $r->print("</body></html>\n");
375: untie(%hash);
376: } else {
377: $r->print('<html><head></head><body>Unable to tie hash to db '.
378: 'file</body></html>');
379: return OK;
380: }
381: return OK;
382: }
383:
384: # ----------------------------------------------- recursive scan of a directory
385: sub scanDir {
386: my ($r,$startdir,$indent,$hashref)=@_;
387: my ($compuri,$curdir);
388: my $dirptr=16384;
389: $indent++;
390:
391: my %dupdirs = %dirs;
392: my @list=&get_list($r,$startdir);
393: foreach my $line (@list) {
394: my ($strip,$dom,$foo,$testdir,$foo)=split(/\&/,$line,5);
395: next if $strip =~ /.*\.meta$/;
396: my (@fileparts) = split(/\./,$strip);
397: if ($hash{'display_attrs_6'} != 1) {
398: if (scalar(@fileparts) >= 3) {
399: my $fext = pop @fileparts;
400: my $ov = pop @fileparts;
401: my $fname = join ('.',@fileparts,$fext);
402: next if (grep /$fname/,@list and $ov =~ /\d+/);
403: }
404: }
405:
406: if ($dom eq "domain") {
407: $compuri = join('',$strip,"/"); # dom list has /res/<domain name>
408: $curdir = $compuri;
409: } else {
410: # user, dir & file have name only, i.e., w/o path
411: $compuri = join('',$startdir,$strip,"/");
412: $curdir = $startdir;
413: }
414: my $diropen = "closed";
415: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/)) {
416: while (my ($key,$val)= each %dupdirs) {
417: if ($key eq $compuri and $val eq "open") {
418: $diropen = "opened";
419: delete $dupdirs{key},$dirs{$key};
420: }
421: }
422: }
423: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
424: &scanDir ($r,$compuri,$indent) if $diropen eq "opened";
425: }
426: $indent--;
427: }
428:
429: # --------------- get complete matched list based on the uri (returns an array)
430: sub get_list {
431: my ($r,$uri)=@_;
432: my @list;
433: my $luri = $uri;
434: $luri =~ s/\//_/g;
435:
436: if ($ENV{'form.attrs'} eq "Refresh") {
437: map {
438: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
439: } keys %hash;
440: }
441:
442: if ($hash{'dirlist_files'.$luri}) {
443: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
444: } else {
445: @list = &Apache::lonnet::dirlist($uri);
446: $hash{'dirlist_files_'.$luri} = join('\n',@list);
447: }
448: return @list=&match_ext($r,@list);
449: }
450:
451: # -------------------- filters out files based on extensions (returns an array)
452: sub match_ext {
453: my ($r,@packlist)=@_;
454: my @trimlist;
455: my $nextline;
456: my @fileext;
457: my $dirptr=16384;
458:
459: my $tabdir = $r->dir_config('lonTabDir');
460: my $fn = $tabdir.'/filetypes.tab';
461: if (-e $fn) {
462: my $FH=Apache::File->new($fn);
463: my @content=<$FH>;
464: foreach my $line (@content) {
465: (my $ext,my $foo) = split /\s+/,$line;
466: push @fileext,$ext;
467: }
468: }
469: foreach my $line (@packlist) {
470: chomp $line;
471: $line =~ s/^\/home\/httpd\/html//;
472: my @unpackline = split (/\&/,$line);
473: next if ($unpackline[0] eq ".");
474: next if ($unpackline[0] eq "..");
475: my @filecom = split (/\./,$unpackline[0]);
476: my $fext = pop(@filecom);
477: my $fnptr = $unpackline[3]&$dirptr;
478: if ($fnptr == 0 and $unpackline[3] ne "") {
479: foreach my $nextline (@fileext) {
480: push @trimlist,$line if $nextline eq $fext;
481: }
482: } else {
483: push @trimlist,$line;
484: }
485: }
486: @trimlist = sort (@trimlist);
487: return @trimlist;
488: }
489:
490: # ------------------------------- displays one line in appropriate table format
491: sub display_line {
492: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
493: my (@pathfn, $fndir, $fnptr);
494: my $dirptr=16384;
495: my $fileclr="#ffffe6";
496: my $iconpath= $r->dir_config('lonIconsURL') . "/";
497:
498: my @filecom = split (/\&/,$line);
499: my @pathcom = split (/\//,$filecom[0]);
500: my $listname = $pathcom[scalar(@pathcom)-1];
501: my $fnptr = $filecom[3]&$dirptr;
502: my $msg = 'View '.$filecom[0].' resources';
503: $msg = 'Close '.$filecom[0].' directory' if $diropen eq "opened";
504:
505: my $tabtag="</td>";
506: my $i=0;
507:
508: while ($i<=5) {
509: $tabtag=join('',$tabtag,"<td bgcolor=",$fileclr,"> </td>")
510: if $hash{'display_attrs_'.$i} == 1;
511: $i++;
512: }
513:
514: # display uplink arrow
515: if ($filecom[1] eq "viewOneUp") {
516: $r->print("<tr>$extrafield");
517: $r->print("<td bgcolor=$fileclr valign=bottom>\n");
518: $r->print ('<form method="post" name="dirpathUP" action="'.$startdir.
519: '/" '.
520: 'onSubmit="return rep_dirpath(\'UP\','.
521: 'document.forms.fileattr.acts.value)" '.
522: 'enctype="application/x-www-form-urlencoded"'.
523: '>'."\n");
524: $r->print ('<input type=hidden name=openuri value="'.
525: $startdir.'">'."\n");
526: $r->print ('<input type="hidden" name="acts" value="">'."\n");
527: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
528: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
529: "\n");
530: $r->print("Up $tabtag</tr></form>\n");
531: return OK;
532: }
533:
534: # display domain
535: if ($filecom[1] eq "domain") {
536: $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n")
537: if ($ENV{'form.dirPointer'} eq "on");
538: $r->print("<tr>$extrafield");
539: $r->print("<td bgcolor=$fileclr valign=bottom>");
540: &begin_form ($r,$filecom[0].'/');
541: my $anchor = $filecom[0].'/';
542: $anchor =~ s/\///g;
543: $r->print ('<a name="'.$anchor.'">');
544: $r->print ('<input type="hidden" name="acts" value="">');
545: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
546: $diropen.'.gif"');
547: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
548: "\n");
549: $r->print ('<a href="javascript:gothere(\''.$filecom[0].
550: '/\')"><img src="'.$iconpath.'server.gif"');
551: $r->print (' border="0" /></a>'."\n");
552: $r->print("Domain - $listname $tabtag</tr></form>\n");
553: return OK;
554:
555: # display user directory
556: }
557: if ($filecom[1] eq "user") {
558: $r->print("<tr>$extrafield");
559: $r->print("<td bgcolor=$fileclr valign=bottom nowrap>\n");
560: my $curdir = $startdir.$filecom[0].'/';
561: my $anchor = $curdir;
562: $anchor =~ s/\///g;
563: &begin_form ($r,$curdir);
564: $r->print ('<a name="'.$anchor.'"><img src="'.$iconpath.
565: 'whitespace1.gif" border="0" />'."\n");
566: $r->print ('<input type="hidden" name="acts" value="">');
567: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
568: '.gif"');
569: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
570: "\n");
571: $r->print ('<a href="javascript:gothere(\''.$curdir.'\')"><img src='.
572: $iconpath.'quill.gif border="0" name="'.$msg.
573: '" height="22" /></a>');
574: $r->print ($listname.$tabtag.'</tr></form>'."\n");
575: return OK;
576: }
577:
578: # display file
579: if ($fnptr == 0 and $filecom[3] ne "") {
580: my @file_ext = split (/\./,$listname);
581: my $curfext = $file_ext[scalar(@file_ext)-1];
582: my $filelink = $startdir.$filecom[0];
583: $r->print("<tr><td nowrap valign='bottom' bgcolor=$fileclr>");
584: my $metafile = grep /^$filecom[0]\.meta\&/, @list;
585: my $title;
586: if ($ENV{'form.catalogmode'} eq 'interactive') {
587: $title=$listname;
588: $title = &Apache::lonnet::metadata($filelink,'title')
589: if ($metafile == 1);
590: $title=$listname unless $title;
591: $r->print("<a href='javascript:select_data(\"",
592: $title,'","',$filelink,"\")'>");
593: $r->print("<img src='",$iconpath,"select.gif' border='0' /></a>".
594: "\n");
595: $r->print("</td><td valign='bottom' nowrap bgcolor=$fileclr>");
596: }
597: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
598: $title=$listname;
599: $title = &Apache::lonnet::metadata($filelink,'title')
600: if ($metafile == 1);
601: $title=$listname unless $title;
602: $r->print("<form name='form$fnum'>\n");
603: $r->print("<input type='checkbox' name='filelink"."' ".
604: "value='$filelink' onClick='".
605: "javascript:queue(\"form$fnum\")' ");
606: if ($hash{'store_'.$filelink}) {
607: $r->print("checked");
608: }
609: $r->print(">\n");
610: $r->print("<input type='hidden' name='title"."' ".
611: "value='$title'>\n");
612: $r->print("</form>\n");
613: $r->print("</td><td valign='bottom' nowrap bgcolor=$fileclr>");
614: $hash{"pre_${fnum}_link"}=$filelink;
615: $hash{"pre_${fnum}_title"}=$title;
616: $fnum++;
617: }
618:
619: if ($indent > 0 and $indent < 11) {
620: $r->print("<img src=",$iconpath,"whitespace",$indent,
621: ".gif border='0' />\n");
622: } elsif ($indent >0) {
623: my $ten = int($indent/10.);
624: my $rem = $indent%10.0;
625: my $count = 0;
626: while ($count < $ten) {
627: $r->print("<img src=",$iconpath,
628: "whitespace10.gif border='0' />\n");
629: $count++;
630: }
631: $r->print("<img src=",$iconpath,"whitespace",$rem,
632: ".gif border='0' />\n") if $rem > 0;
633: }
634:
635: $r->print("<img src=$iconpath$curfext.gif border='0' />\n");
636: $r->print (" <a href=\"javascript:openWindow('".$filelink.
637: "', 'metadatafile', '450', '500', 'no', 'yes')\";".
638: " TARGET=_self>$listname</a> ");
639:
640: $r->print (" (<a href=\"javascript:openWindow('".$filelink.
641: ".meta', 'metadatafile', '400', '450', 'no', 'yes')\"; ".
642: "TARGET=_self>metadata</a>) ") if ($metafile == 1);
643:
644: $r->print("</td>\n");
645: $r->print("<td bgcolor=$fileclr align=right valign=bottom> ",
646: $filecom[8]," </td>\n")
647: if $hash{'display_attrs_0'} == 1;
648: $r->print("<td bgcolor=$fileclr valign=bottom> ".
649: (localtime($filecom[9]))." </td>\n")
650: if $hash{'display_attrs_1'} == 1;
651: $r->print("<td bgcolor=$fileclr valign=bottom> ".
652: (localtime($filecom[10]))." </td>\n")
653: if $hash{'display_attrs_2'} == 1;
654:
655: if ($hash{'display_attrs_3'} == 1) {
656: my $author = &Apache::lonnet::metadata($filelink,'author')
657: if ($metafile == 1);
658: $author = ' ' if (!$author);
659: $r->print("<td bgcolor=$fileclr valign=bottom> ".$author.
660: " </td>\n");
661: }
662: if ($hash{'display_attrs_4'} == 1) {
663: my $keywords = &Apache::lonnet::metadata($filelink,'keywords')
664: if ($metafile == 1);
665: $keywords = ' ' if (!$keywords);
666: $r->print("<td bgcolor=$fileclr valign=bottom> ".$keywords.
667: " </td>\n");
668: }
669: if ($hash{'display_attrs_5'} == 1) {
670: my $lang = &Apache::lonnet::metadata($filelink,'language')
671: if ($metafile == 1);
672: $lang = $language{$lang};
673: $lang = ' ' if (!$lang);
674: $r->print("<td bgcolor=$fileclr valign=bottom> ".$lang.
675: " </td>\n");
676: }
677: $r->print("</tr>\n");
678: }
679:
680: # -- display directory
681: if ($fnptr == $dirptr) {
682: my @file_ext = split (/\./,$listname);
683: my $curfext = $file_ext[scalar(@file_ext)-1];
684: my $curdir = $startdir.$filecom[0].'/';
685: my $anchor = $curdir;
686: $anchor =~ s/\///g;
687: $r->print("<tr>$extrafield<td bgcolor=$fileclr valign=bottom>");
688: &begin_form ($r,$curdir);
689: my $indentm1 = $indent-1;
690: if ($indentm1 < 11 and $indentm1 > 0) {
691: $r->print("<img src=",$iconpath,"whitespace",$indentm1,
692: ".gif border='0' />\n");
693: } else {
694: my $ten = int($indentm1/10.);
695: my $rem = $indentm1%10.0;
696: my $count = 0;
697: while ($count < $ten) {
698: $r->print ("<img src=",$iconpath
699: ,"whitespace10.gif border='0' />\n");
700: $count++;
701: }
702: $r->print ("<img src=",$iconpath,"whitespace",$rem,
703: ".gif border='0' />\n") if $rem > 0;
704: }
705: $r->print ('<input type="hidden" name="acts" value="">');
706: $r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
707: 'folder_pointer_'.$diropen.'.gif"');
708: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
709: "\n");
710: $r->print ('<a href="javascript:gothere(\''.$curdir.'\')"><img src="'.
711: $iconpath.'folder_'.$diropen.'.gif" border="0" /></a>'.
712: "\n");
713: $r->print ("$listname$tabtag</tr></form>\n");
714: }
715:
716: }
717:
718: # ------------------- prints the beginning of a form for directory or file link
719: sub begin_form {
720: my ($r,$uri) = @_;
721: my $anchor = $uri;
722: $anchor =~ s/\///g;
723: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
724: '#'.$anchor.
725: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
726: ',document.forms.fileattr.acts.value)" '.
727: 'enctype="application/x-www-form-urlencoded">'."\n");
728: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'">'.
729: "\n");
730: $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n");
731: $dnum++;
732: }
733:
734: # ----------- grab unprocessed CGI variables that may have been appended to URL
735: sub get_unprocessed_cgi {
736: map {
737: my ($name, $value) = split(/=/,$_);
738: $value =~ tr/+/ /;
739: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
740: if ($name eq 'catalogmode' or $name eq 'launch' or $name eq 'acts') {
741: $ENV{'form.'.$name}=$value;
742: }
743: } (split(/&/,$ENV{'QUERY_STRING'}));
744: }
745:
746: # --------- settings whenever the user causes the indexer window to be launched
747: sub start_fresh_session {
748: delete $hash{'mode_catalog'};
749: map {
750: if ($_ =~ /^pre_/) {
751: delete $hash{$_};
752: }
753: if ($_ =~ /^store/) {
754: delete $hash{$_};
755: }
756: } keys %hash;
757: }
758:
759: 1;
760:
761: =head1 NAME
762:
763: Apache::lonindexer - mod_perl module for cross server filesystem browsing
764:
765: =head1 SYNOPSIS
766:
767: Invoked by /etc/httpd/conf/srm.conf:
768:
769: <LocationMatch "^/res.*/$">
770: SetHandler perl-script
771: PerlHandler Apache::lonindexer
772: </LocationMatch>
773:
774: =head1 INTRODUCTION
775:
776: This module enables a scheme of browsing across a cross server.
777:
778: This is part of the LearningOnline Network with CAPA project
779: described at http://www.lon-capa.org.
780:
781: =head1 BEGIN SUBROUTINE
782:
783: This routine is only run once after compilation.
784:
785: =over 4
786:
787: =item *
788:
789: Initializes %language hash table.
790:
791: =back
792:
793: =head1 HANDLER SUBROUTINE
794:
795: This routine is called by Apache and mod_perl.
796:
797: =over 4
798:
799: =item *
800:
801: read in machine configuration variables
802:
803: =item *
804:
805: see if called from an interactive mode
806:
807: =item *
808:
809: refresh environment with user database values (in %hash)
810:
811: =item *
812:
813: define extra fields and buttons in case of special mode
814:
815: =item *
816:
817: set catalogmodefunctions to have extra needed javascript functionality
818:
819: =item *
820:
821: print header
822:
823: =item *
824:
825: evaluate actions from previous page (both cumulatively and chronologically)
826:
827: =item *
828:
829: output title
830:
831: =item *
832:
833: get state of file attributes to be showing
834:
835: =item *
836:
837: output state of file attributes to be showing
838:
839: =item *
840:
841: output starting row to the indexed file/directory hierarchy
842:
843: =item *
844:
845: read in what directories have previously been set to "open"
846:
847: =item *
848:
849: if not at top level, provide an uplink arrow
850:
851: =item *
852:
853: recursively go through all the directories and output as appropriate
854:
855: =item *
856:
857: information useful for group import
858:
859: =item *
860:
861: end the tables
862:
863: =item *
864:
865: end the output and return
866:
867: =back
868:
869: =head1 OTHER SUBROUTINES
870:
871: =over 4
872:
873: =item *
874:
875: scanDir - recursive scan of a directory
876:
877: =item *
878:
879: get_list - get complete matched list based on the uri (returns an array)
880:
881: =item *
882:
883: match_ext - filters out files based on extensions (returns an array)
884:
885: =item *
886:
887: display_line - displays one line in appropriate table format
888:
889: =item *
890:
891: begin_form - prints the beginning of a form for directory or file link
892:
893: =item *
894:
895: get_unprocessed_cgi - grab unprocessed CGI variables that may have been
896: appended to URL
897:
898: =item *
899:
900: start_fresh_session - settings whenever the user causes the indexer window
901: to be launched
902:
903: =back
904:
905: =cut
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonindexer.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface