Annotation of loncom/interface/lonindexer.pm, revision 1.67
1.1 www 1: # The LearningOnline Network with CAPA
1.24 harris41 2: # Directory Indexer
3: #
1.67 ! matthew 4: # $Id: lonindexer.pm,v 1.66 2003/06/14 00:15:01 albertel Exp $
1.24 harris41 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.
1.14 harris41 14: #
1.24 harris41 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/
1.14 harris41 27: #
1.17 harris41 28: # YEAR=1999
29: # 5/21/99, 5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14 Gerd Kortemeyer)
1.1 www 30: # 11/23 Gerd Kortemeyer
1.17 harris41 31: # YEAR=2000
1.1 www 32: # 07/20-08/04 H.K. Ng
1.17 harris41 33: # YEAR=2001
1.2 harris41 34: # 05/9-05/19/2001 H. K. Ng
1.4 harris41 35: # 05/21/2001 H. K. Ng
1.6 harris41 36: # 05/23/2001 H. K. Ng
1.17 harris41 37: # 6/26,7/8 H. K. Ng
1.18 ng 38: # 8/14 H. K. Ng
1.25 matthew 39: # 11/30 Matthew Hall
1.32 harris41 40: # YEAR=2002
1.45 ng 41: # 6/29/2002 H. K. Ng
1.23 harris41 42: #
43: ###
44:
45: ###############################################################################
46: ## ##
47: ## ORGANIZATION OF THIS PERL MODULE ##
48: ## ##
49: ## 1. Description of functions ##
50: ## 2. Modules used by this module ##
51: ## 3. Choices for different output views (detailed, summary, xml, etc) ##
52: ## 4. BEGIN block (to be run once after compilation) ##
53: ## 5. Handling routine called via Apache and mod_perl ##
54: ## 6. Other subroutines ##
55: ## ##
56: ###############################################################################
1.7 harris41 57:
1.1 www 58: package Apache::lonindexer;
59:
1.23 harris41 60: # ------------------------------------------------- modules used by this module
1.1 www 61: use strict;
62: use Apache::lonnet();
1.30 harris41 63: use Apache::loncommon();
1.1 www 64: use Apache::Constants qw(:common);
1.2 harris41 65: use Apache::File;
66: use GDBM_File;
67:
1.23 harris41 68: # ---------------------------------------- variables used throughout the module
1.17 harris41 69: my %hash; # tied to a user-specific gdbm file
70: my %dirs; # keys are directories, values are the open/close status
71: my %language; # has the reference information present in language.tab
72:
73: # ----- Values which are set by the handler subroutine and are accessible to
74: # ----- other methods.
75: my $extrafield; # default extra table cell
76: my $fnum; # file counter
77: my $dnum; # directory counter
1.1 www 78:
1.40 matthew 79: # ----- Used to include or exclude files with certain extensions.
1.43 matthew 80: my @Only = ();
1.40 matthew 81: my @Omit = ();
82:
83:
1.23 harris41 84: # ----------------------------- Handling routine called via Apache and mod_perl
1.1 www 85: sub handler {
86: my $r = shift;
1.67 ! matthew 87: my $c = $r->connection();
1.1 www 88: $r->content_type('text/html');
1.50 albertel 89: &Apache::loncommon::no_cache($r);
1.1 www 90: $r->send_http_header;
91: return OK if $r->header_only;
1.9 harris41 92: $fnum=0;
1.16 harris41 93: $dnum=0;
1.17 harris41 94:
1.43 matthew 95: # Deal with stupid global variables (is there a way around making
96: # these global to this package? It is just so wrong....)
97: undef (@Only);
98: undef (@Omit);
99:
1.23 harris41 100: # ------------------------------------- read in machine configuration variables
1.10 harris41 101: my $iconpath= $r->dir_config('lonIconsURL') . "/";
1.1 www 102: my $domain = $r->dir_config('lonDefDomain');
103: my $role = $r->dir_config('lonRole');
104: my $loadlim = $r->dir_config('lonLoadLim');
105: my $servadm = $r->dir_config('lonAdmEMail');
106: my $sysadm = $r->dir_config('lonSysEMail');
107: my $lonhost = $r->dir_config('lonHostID');
108: my $tabdir = $r->dir_config('lonTabDir');
109:
1.7 harris41 110: my $fileclr='#ffffe6';
1.15 harris41 111: my $line;
112: my (@attrchk,@openpath);
113: my $uri=$r->uri;
114:
1.7 harris41 115: # -------------------------------------- see if called from an interactive mode
1.35 matthew 116: # Get the parameters from the query string
1.36 matthew 117: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.40 matthew 118: ['catalogmode','launch','acts','mode','form','element',
119: 'only','omit']);
1.35 matthew 120: #-------------------------------------------------------------------
1.17 harris41 121: my $closebutton='';
1.7 harris41 122: my $groupimportbutton='';
123: my $colspan='';
1.14 harris41 124:
125: $extrafield='';
1.17 harris41 126: my $diropendb =
1.66 albertel 127: "/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_indexer.db";
1.67 ! matthew 128: %hash = ();
! 129: my %dbfile;
! 130: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) {
! 131: while(my($key,$value)=each(%dbfile)) {
! 132: $hash{$key}=$value;
! 133: }
! 134: untie(%dbfile);
1.15 harris41 135:
136: if ($ENV{'form.launch'} eq '1') {
1.17 harris41 137: &start_fresh_session();
1.43 matthew 138: }
1.17 harris41 139: # -------------------- refresh environment with user database values (in %hash)
1.48 matthew 140: &setvalues(\%hash,'form.catalogmode',\%ENV,'form.catalogmode' );
1.15 harris41 141:
1.17 harris41 142: # --------------------- define extra fields and buttons in case of special mode
1.15 harris41 143: if ($ENV{'form.catalogmode'} eq 'interactive') {
144: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
145: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
1.17 harris41 146: ' border="0" /></td>';
1.15 harris41 147: $colspan=" colspan='2' ";
148: $closebutton=<<END;
1.7 harris41 149: <input type="button" name="close" value='CLOSE' onClick="self.close()">
150: END
1.16 harris41 151: }
1.15 harris41 152: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
153: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
154: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
1.17 harris41 155: ' border="0" /></td>';
1.15 harris41 156: $colspan=" colspan='2' ";
157: $closebutton=<<END;
1.7 harris41 158: <input type="button" name="close" value='CLOSE' onClick="self.close()">
159: END
1.15 harris41 160: $groupimportbutton=<<END;
1.17 harris41 161: <input type="button" name="groupimport" value='GROUP IMPORT'
162: onClick="javascript:select_group()">
1.7 harris41 163: END
1.15 harris41 164: }
1.35 matthew 165: # Additions made by Matthew to make the browser a little easier to deal
166: # with in the future.
167: #
168: # $mode (at this time) indicates if we are in edit mode.
169: # $form is the name of the form that the URL is placed when the
170: # selection is made.
171: # $element is the name of the element in $formname which receives
172: # the URL.
1.37 matthew 173: # &Apache::lonxml::debug('Checking mode, form, element');
1.48 matthew 174: &setvalues(\%hash,'form.mode' ,\%ENV,'form.mode' );
175: &setvalues(\%hash,'form.form' ,\%ENV,'form.form' );
176: &setvalues(\%hash,'form.element',\%ENV,'form.element');
177: &setvalues(\%hash,'form.only' ,\%ENV,'form.only' );
178: &setvalues(\%hash,'form.omit' ,\%ENV,'form.omit' );
1.35 matthew 179:
1.40 matthew 180: # Deal with 'omit' and 'only'
181: if (exists $ENV{'form.omit'}) {
182: @Omit = split(',',$ENV{'form.omit'});
183: }
184: if (exists $ENV{'form.only'}) {
185: @Only = split(',',$ENV{'form.only'});
186: }
187:
1.35 matthew 188: my $mode = $ENV{'form.mode'};
189: my ($form,$element);
1.39 matthew 190: if ($mode eq 'edit' || $mode eq 'parmset') {
1.35 matthew 191: $form = $ENV{'form.form'};
192: $element = $ENV{'form.element'};
193: }
194: &Apache::lonxml::debug("mode=$mode form=$form element=$element");
1.17 harris41 195: # ------ set catalogmodefunctions to have extra needed javascript functionality
1.15 harris41 196: my $catalogmodefunctions='';
197: if ($ENV{'form.catalogmode'} eq 'interactive' or
198: $ENV{'form.catalogmode'} eq 'groupimport') {
1.35 matthew 199: # The if statement below sets us up to use the old version
200: # by default (ie. if $mode is undefined). This is the easy
201: # way out. Hopefully in the future I'll find a way to get
202: # the calls dealt with in a more comprehensive manner.
1.41 www 203:
204: #
205: # There is now also mode "simple", which is for the simple version of the rat
206: #
207: #
1.39 matthew 208: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
1.40 matthew 209: my $location = "/adm/groupsort?catalogmode=groupimport&";
1.41 www 210: $location .= "mode=".$mode."&";
1.40 matthew 211: $location .= "acts=";
1.35 matthew 212: $catalogmodefunctions=<<"END";
1.7 harris41 213: function select_data(title,url) {
214: changeTitle(title);
215: changeURL(url);
1.8 harris41 216: self.close();
217: }
218: function select_group() {
1.40 matthew 219: window.location="$location"+document.forms.fileattr.acts.value;
1.16 harris41 220: }
1.7 harris41 221: function changeTitle(val) {
1.35 matthew 222: if (opener.inf) {
223: if (opener.inf.document.forms.resinfo.elements.t) {
224: opener.inf.document.forms.resinfo.elements.t.value=val;
225: }
226: }
227: }
228: function changeURL(val) {
229: if (opener.inf) {
230: if (opener.inf.document.forms.resinfo.elements.u) {
231: opener.inf.document.forms.resinfo.elements.u.value=val;
232: }
1.7 harris41 233: }
234: }
1.35 matthew 235: END
1.39 matthew 236: } elsif ($mode eq 'edit') { # we are in 'edit' mode
1.40 matthew 237: my $location = "/adm/groupsort?catalogmode=interactive&";
238: $location .= "form=$form&element=$element&mode=edit&acts=";
1.35 matthew 239: $catalogmodefunctions=<<END;
240: // mode = $mode
241: function select_data(title,url) {
242: changeURL(url);
243: self.close();
244: }
245:
246: function select_group() {
1.40 matthew 247: window.location="$location"+document.forms.fileattr.acts.value;
1.35 matthew 248: }
249:
1.7 harris41 250: function changeURL(val) {
1.35 matthew 251: if (window.opener.document) {
252: window.opener.document.forms["$form"].elements["$element"].value=val;
253: } else {
254: alert("The file you selected is: "+val);
1.7 harris41 255: }
256: }
1.35 matthew 257:
1.7 harris41 258: END
1.39 matthew 259: } elsif ($mode eq 'parmset') {
1.40 matthew 260: my $location = "/adm/groupsort?catalogmode=interactive&";
261: $location .= "form=$form&element=$element&mode=parmset&acts=";
1.39 matthew 262: $catalogmodefunctions=<<END;
263: // mode = $mode
264: function select_data(title,url) {
265: changeURL(url);
266: self.close();
267: }
268:
269: function select_group() {
1.40 matthew 270: window.location="$location"+document.forms.fileattr.acts.value;
1.39 matthew 271: }
272:
273: function changeURL(val) {
274: if (window.opener.document) {
275: var elementname = "$element"+"_value";
276: var checkboxname = "$element"+"_setparmval";
277: window.opener.document.forms["$form"].elements[elementname].value=val;
278: window.opener.document.forms["$form"].elements[checkboxname].checked=true;
279: } else {
280: alert("The file you selected is: "+val);
281: }
282: }
283:
284: END
285: }
1.15 harris41 286: }
1.38 matthew 287: $catalogmodefunctions.=<<END;
288: var acts='';
289: function rep_dirpath(suffix,val) {
290: eval("document.forms.dirpath"+suffix+".acts.value=val");
291: }
292: END
1.16 harris41 293: if ($ENV{'form.catalogmode'} eq 'groupimport') {
1.38 matthew 294: $catalogmodefunctions.=<<END;
1.16 harris41 295: function queue(val) {
296: if (eval("document.forms."+val+".filelink.checked")) {
297: var l=val.length;
298: var v=val.substring(4,l);
299: document.forms.fileattr.acts.value+='1a'+v+'b';
300: }
301: else {
302: var l=val.length;
303: var v=val.substring(4,l);
304: document.forms.fileattr.acts.value+='0a'+v+'b';
305: }
306: }
307: END
308: }
1.17 harris41 309:
1.1 www 310: # ---------------------------------------------------------------- Print Header
1.15 harris41 311: $r->print(<<ENDHEADER);
1.1 www 312: <html>
313: <head>
1.2 harris41 314: <title>The LearningOnline Network With CAPA Directory Browser</title>
1.3 harris41 315:
1.19 harris41 316: <script type="text/javascript">
1.7 harris41 317: $catalogmodefunctions
1.2 harris41 318: function openWindow(url, wdwName, w, h, toolbar,scrollbar) {
319: var options = "width=" + w + ",height=" + h + ",";
320: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
321: options += "menubar=no,toolbar="+toolbar+",location=no,directories=no";
322: var newWin = window.open(url, wdwName, options);
323: newWin.focus();
324: }
1.16 harris41 325: function gothere(val) {
326: window.location=val+'?acts='+document.forms.fileattr.acts.value;
327: }
1.14 harris41 328: </script>
1.3 harris41 329:
1.1 www 330: </head>
331: ENDHEADER
1.52 www 332: $r->print(&Apache::loncommon::bodytag('Browse Resources'));
1.17 harris41 333: # - Evaluate actions from previous page (both cumulatively and chronologically)
1.16 harris41 334: if ($ENV{'form.catalogmode'} eq 'groupimport') {
335: my $acts=$ENV{'form.acts'};
336: my @Acts=split(/b/,$acts);
337: my %ahash;
338: my %achash;
339: my $ac=0;
1.17 harris41 340: # some initial hashes for working with data
1.27 harris41 341: foreach (@Acts) {
1.16 harris41 342: my ($state,$ref)=split(/a/);
343: $ahash{$ref}=$state;
344: $achash{$ref}=$ac;
345: $ac++;
1.27 harris41 346: }
1.17 harris41 347: # sorting through the actions and changing the tied database hash
1.27 harris41 348: foreach (sort {$achash{$a}<=>$achash{$b}} (keys %ahash)) {
1.16 harris41 349: my $key=$_;
350: if ($ahash{$key} eq '1') {
351: $hash{'store_'.$hash{'pre_'.$key.'_link'}}=
352: $hash{'pre_'.$key.'_title'};
353: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}}=
354: $hash{'storectr'}+0;
355: $hash{'storectr'}++;
356: }
357: if ($ahash{$key} eq '0') {
358: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
359: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
360: }
361: }
1.27 harris41 362: }
1.17 harris41 363: # deleting the previously cached listing
1.27 harris41 364: foreach (keys %hash) {
1.16 harris41 365: if ($_ =~ /^pre_/ && $_ =~/link$/) {
366: my $key = $_;
367: $key =~ s/^pre_//;
368: $key =~ s/_[^_]*$//;
369: delete $hash{'pre_'.$key.'_title'};
370: delete $hash{'pre_'.$key.'_link'};
371: }
1.27 harris41 372: }
1.16 harris41 373: }
374:
1.23 harris41 375: # ---------------------------------- get state of file attributes to be showing
1.45 ng 376: if ($ENV{'form.attrs'} ne '') {
1.56 www 377: for (my $i=0; $i<=8; $i++) {
1.6 harris41 378: delete $hash{'display_attrs_'.$i};
379: if ($ENV{'form.attr'.$i} == 1) {
1.45 ng 380: $attrchk[$i] = 'checked';
1.6 harris41 381: $hash{'display_attrs_'.$i} = 1;
382: }
383: }
384: } else {
1.56 www 385: for (my $i=0; $i<=8; $i++) {
1.45 ng 386: $attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
1.6 harris41 387: }
388: }
1.23 harris41 389: # ------------------------------- output state of file attributes to be showing
1.15 harris41 390: $r->print(<<END);
1.17 harris41 391: <form method="post" name="fileattr" action="$uri"
392: enctype="application/x-www-form-urlencoded">
1.45 ng 393: <b><font color="#666666">Display file attributes</font></b><br />
1.1 www 394: <table border=0><tr>
1.45 ng 395: <td><input type="checkbox" name="attr0" value="1" $attrchk[0] /> Title</td>
396: <td><input type="checkbox" name="attr1" value="1" $attrchk[1] /> Size</td>
397: <td><input type="checkbox" name="attr2" value="1" $attrchk[2] /> Last access</td>
398: <td><input type="checkbox" name="attr3" value="1" $attrchk[3] /> Last modified</td>
1.63 ng 399: <td><input type="checkbox" name="attr8" value="1" $attrchk[8] /> All versions</td></tr><tr>
1.45 ng 400: <td><input type="checkbox" name="attr4" value="1" $attrchk[4] /> Author</td>
401: <td><input type="checkbox" name="attr5" value="1" $attrchk[5] /> Keywords</td>
402: <td><input type="checkbox" name="attr6" value="1" $attrchk[6] /> Language</td>
1.63 ng 403: <td><input type="checkbox" name="attr7" value="1" $attrchk[7] /> Show Resource</td>
404: <td> </td>
1.1 www 405: </tr></table>
1.16 harris41 406: <input type="hidden" name="dirPointer" value="on" />
407: <input type="hidden" name="acts" value="" />
408: <input type="submit" name="attrs" value="Review" />
409: <input type="submit" name="attrs" value="Refresh" />
1.7 harris41 410: $closebutton
411: $groupimportbutton
1.1 www 412: </form>
413: END
414:
1.23 harris41 415: # ----------------- output starting row to the indexed file/directory hierarchy
1.15 harris41 416: my $titleclr="#ddffff";
1.40 matthew 417: # $r->print(&initdebug());
418: # $r->print(&writedebug("Omit:@Omit")) if (@Omit);
419: # $r->print(&writedebug("Only:@Only")) if (@Only);
1.46 ng 420: $r->print("<table width='100\%' border=0><tr><td bgcolor=#777777>\n");
1.45 ng 421: $r->print("<table width='100\%' border=0><tr bgcolor=$titleclr>\n");
422: $r->print("<td $colspan><b>Name</b></td>\n");
423: $r->print("<td><b>Title</b></td>\n")
424: if ($hash{'display_attrs_0'} == 1);
425: $r->print("<td align=right><b>Size (bytes) ".
426: "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
427: $r->print("<td><b>Last accessed</b></td>\n")
1.17 harris41 428: if ($hash{'display_attrs_2'} == 1);
1.45 ng 429: $r->print("<td><b>Last modified</b></td>\n")
1.17 harris41 430: if ($hash{'display_attrs_3'} == 1);
1.45 ng 431: $r->print("<td><b>Author(s)</b></td>\n")
1.17 harris41 432: if ($hash{'display_attrs_4'} == 1);
1.45 ng 433: $r->print("<td><b>Keywords</b></td>\n")
1.17 harris41 434: if ($hash{'display_attrs_5'} == 1);
1.45 ng 435: $r->print("<td><b>Language</b></td>\n")
436: if ($hash{'display_attrs_6'} == 1);
1.56 www 437: $r->print("<td><b>Resource</b></td>\n")
1.63 ng 438: if ($hash{'display_attrs_7'} == 1);
1.45 ng 439: $r->print('</tr>');
1.5 harris41 440:
1.23 harris41 441: # ----------------- read in what directories have previously been set to "open"
1.27 harris41 442: foreach (keys %hash) {
1.4 harris41 443: if ($_ =~ /^diropen_status_/) {
444: my $key = $_;
445: $key =~ s/^diropen_status_//;
446: $dirs{$key} = $hash{$_};
447: }
1.27 harris41 448: }
1.4 harris41 449:
1.2 harris41 450: if ($ENV{'form.openuri'}) { # take care of review and refresh options
451: my $uri=$ENV{'form.openuri'};
1.4 harris41 452: if (exists($hash{'diropen_status_'.$uri})) {
453: my $cursta = $hash{'diropen_status_'.$uri};
1.2 harris41 454: $dirs{$uri} = 'open';
1.4 harris41 455: $hash{'diropen_status_'.$uri} = 'open';
456: if ($cursta eq 'open') {
457: $dirs{$uri} = 'closed';
458: $hash{'diropen_status_'.$uri} = 'closed';
459: }
1.2 harris41 460: } else {
1.4 harris41 461: $hash{'diropen_status_'.$uri} = 'open';
1.2 harris41 462: $dirs{$uri} = 'open';
463: }
464: }
1.12 ng 465:
466: my $bredir = $ENV{'form.dirPointer'};
467: my $toplevel;
1.13 ng 468: my $indent = 0;
1.12 ng 469: $uri = $uri.'/' if $uri !~ /.*\/$/;
1.17 harris41 470:
1.45 ng 471: if ($bredir ne 'on') {
1.12 ng 472: $hash{'top.level'} = $uri;
473: $toplevel = $uri;
1.13 ng 474:
475: } else {
476: $toplevel = $hash{'top.level'};
477: }
1.17 harris41 478:
1.23 harris41 479: # -------------------------------- if not at top level, provide an uplink arrow
1.45 ng 480: if ($toplevel ne '/res/'){
1.13 ng 481: my (@uri_com) = split(/\//,$uri);
482: pop @uri_com;
483: my $upone = join('/',@uri_com);
484: my @list = qw (0);
485: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
486: $indent = 1;
1.12 ng 487: }
1.17 harris41 488:
1.23 harris41 489: # -------- recursively go through all the directories and output as appropriate
1.16 harris41 490: &scanDir ($r,$toplevel,$indent,\%hash);
1.12 ng 491:
1.23 harris41 492: # ---------------------------- embed hidden information useful for group import
1.8 harris41 493: $r->print("<form name='fnum'>");
494: $r->print("<input type='hidden' name='fnum' value='$fnum'></form>");
1.17 harris41 495:
1.23 harris41 496: # -------------------------------------------------------------- end the tables
1.45 ng 497: $r->print('</table>');
498: $r->print('</td></tr></table>');
1.17 harris41 499:
1.23 harris41 500: # --------------------------------------------------- end the output and return
1.45 ng 501: $r->print('</body></html>'."\n");
1.2 harris41 502: } else {
1.17 harris41 503: $r->print('<html><head></head><body>Unable to tie hash to db '.
504: 'file</body></html>');
505: return OK;
1.2 harris41 506: }
1.67 ! matthew 507: if(! $c->aborted()) {
! 508: if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
! 509: while (my($key,$value) = each(%hash)) {
! 510: $dbfile{$key}=$value;
! 511: }
! 512: untie(%dbfile);
! 513: }
! 514: }
! 515:
1.1 www 516: return OK;
517: }
1.2 harris41 518:
1.17 harris41 519: # ----------------------------------------------- recursive scan of a directory
1.2 harris41 520: sub scanDir {
1.16 harris41 521: my ($r,$startdir,$indent,$hashref)=@_;
1.67 ! matthew 522: my $c = $r->connection();
1.3 harris41 523: my ($compuri,$curdir);
524: my $dirptr=16384;
1.1 www 525: $indent++;
526:
1.2 harris41 527: my %dupdirs = %dirs;
528: my @list=&get_list($r,$startdir);
529: foreach my $line (@list) {
1.67 ! matthew 530: return if ($c->aborted());
1.53 albertel 531: my ($strip,$dom,undef,$testdir,undef)=split(/\&/,$line,5);
1.4 harris41 532: next if $strip =~ /.*\.meta$/;
1.18 ng 533: my (@fileparts) = split(/\./,$strip);
1.63 ng 534: if ($hash{'display_attrs_8'} != 1) {
1.18 ng 535: if (scalar(@fileparts) >= 3) {
536: my $fext = pop @fileparts;
537: my $ov = pop @fileparts;
538: my $fname = join ('.',@fileparts,$fext);
1.62 albertel 539: next if (grep /\Q$fname\E/,@list and $ov =~ /\d+/);
1.18 ng 540: }
541: }
542:
1.45 ng 543: if ($dom eq 'domain') {
544: $compuri = join('',$strip,'/'); # dom list has /res/<domain name>
1.3 harris41 545: $curdir = $compuri;
1.2 harris41 546: } else {
1.17 harris41 547: # user, dir & file have name only, i.e., w/o path
1.45 ng 548: $compuri = join('',$startdir,$strip,'/');
1.3 harris41 549: $curdir = $startdir;
1.2 harris41 550: }
1.45 ng 551: my $diropen = 'closed';
1.5 harris41 552: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/)) {
1.3 harris41 553: while (my ($key,$val)= each %dupdirs) {
1.5 harris41 554: if ($key eq $compuri and $val eq "open") {
1.11 ng 555: $diropen = "opened";
1.53 albertel 556: delete($dupdirs{$key});
557: delete($dirs{$key});
1.5 harris41 558: }
1.3 harris41 559: }
1.1 www 560: }
1.16 harris41 561: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
1.45 ng 562: &scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
1.1 www 563: }
564: $indent--;
565: }
566:
1.17 harris41 567: # --------------- get complete matched list based on the uri (returns an array)
1.1 www 568: sub get_list {
569: my ($r,$uri)=@_;
570: my @list;
1.45 ng 571: (my $luri = $uri) =~ s/\//_/g;
1.2 harris41 572:
1.45 ng 573: if ($ENV{'form.attrs'} eq 'Refresh') {
1.27 harris41 574: foreach (keys %hash) {
1.4 harris41 575: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
1.27 harris41 576: }
1.2 harris41 577: }
578:
1.4 harris41 579: if ($hash{'dirlist_files'.$luri}) {
580: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
1.1 www 581: } else {
1.4 harris41 582: @list = &Apache::lonnet::dirlist($uri);
583: $hash{'dirlist_files_'.$luri} = join('\n',@list);
1.1 www 584: }
585: return @list=&match_ext($r,@list);
586: }
587:
1.40 matthew 588: sub initdebug {
589: return <<ENDJS;
590: <script>
591: var debugging = true;
592: if (debugging) {
593: var debuggingWindow = window.open('','Debug','width=400,height=300',true);
594: }
595:
596: function output(text) {
597: if (debugging) {
598: debuggingWindow.document.writeln(text);
599: }
600: }
601: output("<html><head><title>Debugging Window</title></head><body><pre>");
602: </script>
603: ENDJS
604: }
605:
606: sub writedebug {
607: my $text = shift;
608: return "<script>output('$text');</script>";
609: }
610:
1.17 harris41 611: # -------------------- filters out files based on extensions (returns an array)
1.1 www 612: sub match_ext {
613: my ($r,@packlist)=@_;
614: my @trimlist;
615: my $nextline;
616: my @fileext;
617: my $dirptr=16384;
618:
1.2 harris41 619: foreach my $line (@packlist) {
620: chomp $line;
621: $line =~ s/^\/home\/httpd\/html//;
622: my @unpackline = split (/\&/,$line);
1.45 ng 623: next if ($unpackline[0] eq '.');
624: next if ($unpackline[0] eq '..');
1.2 harris41 625: my @filecom = split (/\./,$unpackline[0]);
626: my $fext = pop(@filecom);
627: my $fnptr = $unpackline[3]&$dirptr;
628: if ($fnptr == 0 and $unpackline[3] ne "") {
1.28 harris41 629: my $embstyle = &Apache::loncommon::fileembstyle($fext);
1.25 matthew 630: push @trimlist,$line if (defined($embstyle) &&
1.32 harris41 631: ($embstyle ne 'hdn' or $fext eq 'meta'));
1.1 www 632: } else {
1.2 harris41 633: push @trimlist,$line;
1.1 www 634: }
635: }
1.4 harris41 636: @trimlist = sort (@trimlist);
1.1 www 637: return @trimlist;
638: }
639:
1.17 harris41 640: # ------------------------------- displays one line in appropriate table format
1.23 harris41 641: sub display_line {
1.16 harris41 642: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
1.53 albertel 643: my (@pathfn, $fndir);
1.1 www 644: my $dirptr=16384;
645: my $fileclr="#ffffe6";
1.45 ng 646: my $iconpath= $r->dir_config('lonIconsURL') . '/';
1.1 www 647:
648: my @filecom = split (/\&/,$line);
649: my @pathcom = split (/\//,$filecom[0]);
650: my $listname = $pathcom[scalar(@pathcom)-1];
651: my $fnptr = $filecom[3]&$dirptr;
1.4 harris41 652: my $msg = 'View '.$filecom[0].' resources';
1.45 ng 653: $msg = 'Close '.$filecom[0].' directory' if $diropen eq 'opened';
1.1 www 654:
1.45 ng 655: my $tabtag='</td>';
1.1 www 656: my $i=0;
657:
1.63 ng 658: while ($i<=7) {
1.45 ng 659: $tabtag=join('',$tabtag,"<td> </td>")
1.17 harris41 660: if $hash{'display_attrs_'.$i} == 1;
1.1 www 661: $i++;
662: }
1.63 ng 663:
664: my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
1.17 harris41 665:
666: # display uplink arrow
1.45 ng 667: if ($filecom[1] eq 'viewOneUp') {
668: $r->print("<tr bgcolor=$fileclr>$extrafield");
1.63 ng 669: $r->print("<td valign=$valign>\n");
1.16 harris41 670: $r->print ('<form method="post" name="dirpathUP" action="'.$startdir.
671: '/" '.
1.17 harris41 672: 'onSubmit="return rep_dirpath(\'UP\','.
673: 'document.forms.fileattr.acts.value)" '.
1.16 harris41 674: 'enctype="application/x-www-form-urlencoded"'.
675: '>'."\n");
1.17 harris41 676: $r->print ('<input type=hidden name=openuri value="'.
677: $startdir.'">'."\n");
1.16 harris41 678: $r->print ('<input type="hidden" name="acts" value="">'."\n");
1.13 ng 679: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
1.17 harris41 680: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
681: "\n");
1.13 ng 682: $r->print("Up $tabtag</tr></form>\n");
683: return OK;
684: }
1.64 www 685: # Do we have permission to look at this?
686:
687: return OK if (!&Apache::lonnet::allowed('bre',$startdir.$filecom[0]));
1.17 harris41 688:
689: # display domain
1.45 ng 690: if ($filecom[1] eq 'domain') {
1.17 harris41 691: $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n")
692: if ($ENV{'form.dirPointer'} eq "on");
1.45 ng 693: $r->print("<tr bgcolor=$fileclr>$extrafield");
1.63 ng 694: $r->print("<td valign=$valign>");
1.2 harris41 695: &begin_form ($r,$filecom[0].'/');
1.3 harris41 696: my $anchor = $filecom[0].'/';
697: $anchor =~ s/\///g;
1.13 ng 698: $r->print ('<a name="'.$anchor.'">');
1.16 harris41 699: $r->print ('<input type="hidden" name="acts" value="">');
1.17 harris41 700: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
701: $diropen.'.gif"');
702: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
703: "\n");
704: $r->print ('<a href="javascript:gothere(\''.$filecom[0].
705: '/\')"><img src="'.$iconpath.'server.gif"');
706: $r->print (' border="0" /></a>'."\n");
1.60 albertel 707: $r->print ("Domain - $listname ");
708: if ($Apache::lonnet::domaindescription{$listname}) {
709: $r->print("(".$Apache::lonnet::domaindescription{$listname}.
710: ")");
711: }
712: $r->print (" $tabtag</tr></form>\n");
1.1 www 713: return OK;
1.17 harris41 714:
715: # display user directory
1.1 www 716: }
1.45 ng 717: if ($filecom[1] eq 'user') {
718: $r->print("<tr bgcolor=$fileclr>$extrafield");
1.63 ng 719: $r->print("<td valign=$valign nowrap>\n");
1.2 harris41 720: my $curdir = $startdir.$filecom[0].'/';
1.3 harris41 721: my $anchor = $curdir;
722: $anchor =~ s/\///g;
1.13 ng 723: &begin_form ($r,$curdir);
1.17 harris41 724: $r->print ('<a name="'.$anchor.'"><img src="'.$iconpath.
725: 'whitespace1.gif" border="0" />'."\n");
1.16 harris41 726: $r->print ('<input type="hidden" name="acts" value="">');
1.17 harris41 727: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
728: '.gif"');
729: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
730: "\n");
731: $r->print ('<a href="javascript:gothere(\''.$curdir.'\')"><img src='.
732: $iconpath.'quill.gif border="0" name="'.$msg.
733: '" height="22" /></a>');
1.60 albertel 734: my $domain=(split(m|/|,$startdir))[2];
735: my $plainname=&Apache::loncommon::plainname($listname,$domain);
736: $r->print ($listname);
737: if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
738: $r->print ($tabtag.'</tr></form>'."\n");
1.1 www 739: return OK;
740: }
1.17 harris41 741:
1.1 www 742: # display file
1.45 ng 743: if ($fnptr == 0 and $filecom[3] ne '') {
1.47 ng 744: my $filelink = $startdir.$filecom[0];
1.1 www 745: my @file_ext = split (/\./,$listname);
1.25 matthew 746: my $curfext = $file_ext[-1];
1.40 matthew 747: if (@Omit) {
748: foreach (@Omit) { return OK if ($curfext eq $_); }
749: }
750: if (@Only) {
751: my $skip = 1;
752: foreach (@Only) { $skip = 0 if ($curfext eq $_); }
753: return OK if ($skip > 0);
754: }
1.25 matthew 755: # Set the icon for the file
1.26 matthew 756: my $iconname = "unknown.gif";
1.28 harris41 757: my $embstyle = &Apache::loncommon::fileembstyle($curfext);
1.25 matthew 758: # The unless conditional that follows is a bit of overkill
759: $iconname = $curfext.".gif" unless
1.26 matthew 760: (!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn');
1.25 matthew 761: #
1.63 ng 762: $r->print("<tr bgcolor=$fileclr><td nowrap valign='$valign'>");
1.62 albertel 763: my $metafile = grep /^\Q$filecom[0]\E\.meta\&/, @list;
1.7 harris41 764: my $title;
765: if ($ENV{'form.catalogmode'} eq 'interactive') {
766: $title=$listname;
1.8 harris41 767: $title = &Apache::lonnet::metadata($filelink,'title')
768: if ($metafile == 1);
1.7 harris41 769: $title=$listname unless $title;
1.42 albertel 770: my $titleesc=HTML::Entities::encode($title);
771: $titleesc=~s/\'/\\'/; #' (clean up this spare quote)
1.35 matthew 772: $r->print("<a href=\"javascript:select_data(\'",
1.34 harris41 773: $titleesc,"','",$filelink,"')\">");
1.17 harris41 774: $r->print("<img src='",$iconpath,"select.gif' border='0' /></a>".
775: "\n");
1.63 ng 776: $r->print("</td><td valign='$valign' nowrap>");
1.8 harris41 777: }
778: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
779: $title=$listname;
780: $title = &Apache::lonnet::metadata($filelink,'title')
781: if ($metafile == 1);
782: $title=$listname unless $title;
1.42 albertel 783: my $titleesc=&HTML::Entities::encode($title);
1.8 harris41 784: $r->print("<form name='form$fnum'>\n");
785: $r->print("<input type='checkbox' name='filelink"."' ".
1.16 harris41 786: "value='$filelink' onClick='".
787: "javascript:queue(\"form$fnum\")' ");
788: if ($hash{'store_'.$filelink}) {
789: $r->print("checked");
790: }
791: $r->print(">\n");
1.8 harris41 792: $r->print("<input type='hidden' name='title"."' ".
1.42 albertel 793: "value='$titleesc'>\n");
1.8 harris41 794: $r->print("</form>\n");
1.63 ng 795: $r->print("</td><td valign='$valign' nowrap>");
1.16 harris41 796: $hash{"pre_${fnum}_link"}=$filelink;
1.42 albertel 797: $hash{"pre_${fnum}_title"}=$titleesc;
1.8 harris41 798: $fnum++;
1.7 harris41 799: }
1.4 harris41 800:
1.12 ng 801: if ($indent > 0 and $indent < 11) {
1.17 harris41 802: $r->print("<img src=",$iconpath,"whitespace",$indent,
803: ".gif border='0' />\n");
1.11 ng 804: } elsif ($indent >0) {
1.4 harris41 805: my $ten = int($indent/10.);
806: my $rem = $indent%10.0;
807: my $count = 0;
808: while ($count < $ten) {
1.17 harris41 809: $r->print("<img src=",$iconpath,
810: "whitespace10.gif border='0' />\n");
1.1 www 811: $count++;
1.4 harris41 812: }
1.17 harris41 813: $r->print("<img src=",$iconpath,"whitespace",$rem,
814: ".gif border='0' />\n") if $rem > 0;
1.1 www 815: }
1.4 harris41 816:
1.25 matthew 817: $r->print("<img src=$iconpath$iconname border='0' />\n");
1.17 harris41 818: $r->print (" <a href=\"javascript:openWindow('".$filelink.
819: "', 'metadatafile', '450', '500', 'no', 'yes')\";".
820: " TARGET=_self>$listname</a> ");
821:
822: $r->print (" (<a href=\"javascript:openWindow('".$filelink.
823: ".meta', 'metadatafile', '400', '450', 'no', 'yes')\"; ".
824: "TARGET=_self>metadata</a>) ") if ($metafile == 1);
1.2 harris41 825:
1.7 harris41 826: $r->print("</td>\n");
1.45 ng 827: if ($hash{'display_attrs_0'} == 1) {
828: my $title = &Apache::lonnet::metadata($filelink,'title')
829: if ($metafile == 1);
1.63 ng 830: $r->print('<td valign=$valign> '.($title eq '' ? ' ' : $title).
1.45 ng 831: ' </td>'."\n");
832: }
1.63 ng 833: $r->print('<td align=right valign=$valign> ',
1.17 harris41 834: $filecom[8]," </td>\n")
1.45 ng 835: if $hash{'display_attrs_1'} == 1;
1.63 ng 836: $r->print('<td valign=$valign> '.
1.17 harris41 837: (localtime($filecom[9]))." </td>\n")
1.45 ng 838: if $hash{'display_attrs_2'} == 1;
1.63 ng 839: $r->print('<td valign=$valign> '.
1.17 harris41 840: (localtime($filecom[10]))." </td>\n")
1.45 ng 841: if $hash{'display_attrs_3'} == 1;
1.2 harris41 842:
1.45 ng 843: if ($hash{'display_attrs_4'} == 1) {
1.17 harris41 844: my $author = &Apache::lonnet::metadata($filelink,'author')
845: if ($metafile == 1);
1.63 ng 846: $r->print('<td valign=$valign> '.($author eq '' ? ' ' : $author).
1.17 harris41 847: " </td>\n");
1.2 harris41 848: }
1.45 ng 849: if ($hash{'display_attrs_5'} == 1) {
1.17 harris41 850: my $keywords = &Apache::lonnet::metadata($filelink,'keywords')
851: if ($metafile == 1);
1.45 ng 852: # $keywords = ' ' if (!$keywords);
1.63 ng 853: $r->print('<td valign=$valign> '.($keywords eq '' ? ' ' : $keywords).
1.17 harris41 854: " </td>\n");
1.2 harris41 855: }
1.45 ng 856: if ($hash{'display_attrs_6'} == 1) {
1.17 harris41 857: my $lang = &Apache::lonnet::metadata($filelink,'language')
858: if ($metafile == 1);
1.28 harris41 859: $lang = &Apache::loncommon::languagedescription($lang);
1.63 ng 860: $r->print('<td valign=$valign> '.($lang eq '' ? ' ' : $lang).
1.17 harris41 861: " </td>\n");
1.2 harris41 862: }
1.63 ng 863: if ($hash{'display_attrs_7'} == 1) {
1.56 www 864: my $output='';
1.57 www 865: my $embstyle=&Apache::loncommon::fileembstyle($curfext);
866: if ($embstyle eq 'ssi') {
1.61 www 867: $output=&Apache::lonnet::ssi_body($filelink);
1.56 www 868: $output='<font size="-2">'.$output.'</font>';
1.57 www 869: } elsif ($embstyle eq 'img') {
870: $output='<img src="'.$filelink.'" />';
1.58 www 871: } elsif ($filelink=~/^\/res\/(\w+)\/(\w+)\//) {
872: $output='<img src="http://'.
873: $Apache::lonnet::hostname{&Apache::lonnet::homeserver($2,$1)}.
874: '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1.57 www 875: }
1.63 ng 876: $r->print('<td valign=$valign> '.($output eq '' ? ' ':$output).
1.56 www 877: " </td>\n");
878: }
1.1 www 879: $r->print("</tr>\n");
880: }
1.17 harris41 881:
1.2 harris41 882: # -- display directory
1.1 www 883: if ($fnptr == $dirptr) {
884: my @file_ext = split (/\./,$listname);
885: my $curfext = $file_ext[scalar(@file_ext)-1];
1.2 harris41 886: my $curdir = $startdir.$filecom[0].'/';
1.3 harris41 887: my $anchor = $curdir;
888: $anchor =~ s/\///g;
1.63 ng 889: $r->print("<tr bgcolor=$fileclr>$extrafield<td valign=$valign>");
1.2 harris41 890: &begin_form ($r,$curdir);
1.4 harris41 891: my $indentm1 = $indent-1;
1.11 ng 892: if ($indentm1 < 11 and $indentm1 > 0) {
1.17 harris41 893: $r->print("<img src=",$iconpath,"whitespace",$indentm1,
894: ".gif border='0' />\n");
1.4 harris41 895: } else {
896: my $ten = int($indentm1/10.);
897: my $rem = $indentm1%10.0;
898: my $count = 0;
899: while ($count < $ten) {
1.17 harris41 900: $r->print ("<img src=",$iconpath
901: ,"whitespace10.gif border='0' />\n");
1.12 ng 902: $count++;
1.4 harris41 903: }
1.17 harris41 904: $r->print ("<img src=",$iconpath,"whitespace",$rem,
905: ".gif border='0' />\n") if $rem > 0;
1.1 www 906: }
1.16 harris41 907: $r->print ('<input type="hidden" name="acts" value="">');
1.17 harris41 908: $r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
909: 'folder_pointer_'.$diropen.'.gif"');
910: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
911: "\n");
912: $r->print ('<a href="javascript:gothere(\''.$curdir.'\')"><img src="'.
913: $iconpath.'folder_'.$diropen.'.gif" border="0" /></a>'.
914: "\n");
1.13 ng 915: $r->print ("$listname$tabtag</tr></form>\n");
1.1 www 916: }
1.2 harris41 917:
1.1 www 918: }
919:
1.14 harris41 920: # ------------------- prints the beginning of a form for directory or file link
1.1 www 921: sub begin_form {
922: my ($r,$uri) = @_;
1.3 harris41 923: my $anchor = $uri;
924: $anchor =~ s/\///g;
1.17 harris41 925: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
926: '#'.$anchor.
927: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
928: ',document.forms.fileattr.acts.value)" '.
1.16 harris41 929: 'enctype="application/x-www-form-urlencoded">'."\n");
1.17 harris41 930: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'">'.
931: "\n");
932: $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n");
1.16 harris41 933: $dnum++;
1.17 harris41 934: }
935:
936: # --------- settings whenever the user causes the indexer window to be launched
937: sub start_fresh_session {
1.48 matthew 938: delete $hash{'form.catalogmode'};
939: delete $hash{'form.mode'};
940: delete $hash{'form.form'};
941: delete $hash{'form.element'};
942: delete $hash{'form.omit'};
943: delete $hash{'form.only'};
1.27 harris41 944: foreach (keys %hash) {
1.48 matthew 945: delete $hash{$_} if (/^(pre_|store)/);
1.27 harris41 946: }
1.1 www 947: }
948:
1.35 matthew 949: # ------------------------------------------------------------------- setvalues
950: sub setvalues {
951: # setvalues is used in registerurl to synchronize the database
952: # hash and environment hashes
953: my ($H1,$h1key,$H2,$h2key) =@_;
954: #
955: if (exists $H2->{$h2key}) {
956: $H1->{$h1key} = $H2->{$h2key};
957: } elsif (exists $H1->{$h1key}) {
958: $H2->{$h2key} = $H1->{$h1key};
959: }
960: }
961:
1.1 www 962: 1;
1.54 www 963:
964: sub cleanup {
1.55 www 965: if (tied(%hash)){
966: &Apache::lonnet::logthis('Cleanup indexer: hash');
967: }
1.54 www 968: }
1.23 harris41 969:
970: =head1 NAME
971:
972: Apache::lonindexer - mod_perl module for cross server filesystem browsing
973:
974: =head1 SYNOPSIS
975:
976: Invoked by /etc/httpd/conf/srm.conf:
977:
978: <LocationMatch "^/res.*/$">
979: SetHandler perl-script
980: PerlHandler Apache::lonindexer
981: </LocationMatch>
982:
983: =head1 INTRODUCTION
984:
985: This module enables a scheme of browsing across a cross server.
986:
987: This is part of the LearningOnline Network with CAPA project
988: described at http://www.lon-capa.org.
989:
990: =head1 BEGIN SUBROUTINE
991:
992: This routine is only run once after compilation.
993:
994: =over 4
995:
996: =item *
997:
998: Initializes %language hash table.
999:
1000: =back
1001:
1002: =head1 HANDLER SUBROUTINE
1003:
1004: This routine is called by Apache and mod_perl.
1005:
1006: =over 4
1007:
1008: =item *
1009:
1010: read in machine configuration variables
1011:
1012: =item *
1013:
1014: see if called from an interactive mode
1015:
1016: =item *
1017:
1018: refresh environment with user database values (in %hash)
1019:
1020: =item *
1021:
1022: define extra fields and buttons in case of special mode
1023:
1024: =item *
1025:
1026: set catalogmodefunctions to have extra needed javascript functionality
1027:
1028: =item *
1029:
1030: print header
1031:
1032: =item *
1033:
1034: evaluate actions from previous page (both cumulatively and chronologically)
1035:
1036: =item *
1037:
1038: output title
1039:
1040: =item *
1041:
1042: get state of file attributes to be showing
1043:
1044: =item *
1045:
1046: output state of file attributes to be showing
1047:
1048: =item *
1049:
1050: output starting row to the indexed file/directory hierarchy
1051:
1052: =item *
1053:
1054: read in what directories have previously been set to "open"
1055:
1056: =item *
1057:
1058: if not at top level, provide an uplink arrow
1059:
1060: =item *
1061:
1062: recursively go through all the directories and output as appropriate
1063:
1064: =item *
1065:
1066: information useful for group import
1067:
1068: =item *
1069:
1070: end the tables
1071:
1072: =item *
1073:
1074: end the output and return
1075:
1076: =back
1077:
1078: =head1 OTHER SUBROUTINES
1079:
1080: =over 4
1081:
1082: =item *
1083:
1084: scanDir - recursive scan of a directory
1085:
1086: =item *
1087:
1088: get_list - get complete matched list based on the uri (returns an array)
1089:
1090: =item *
1091:
1092: match_ext - filters out files based on extensions (returns an array)
1093:
1094: =item *
1095:
1096: display_line - displays one line in appropriate table format
1097:
1098: =item *
1099:
1100: begin_form - prints the beginning of a form for directory or file link
1101:
1102: =item *
1103:
1104: start_fresh_session - settings whenever the user causes the indexer window
1105: to be launched
1106:
1107: =back
1108:
1109: =cut
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