Annotation of loncom/interface/lonindexer.pm, revision 1.39
1.1 www 1: # The LearningOnline Network with CAPA
1.24 harris41 2: # Directory Indexer
3: #
1.39 ! matthew 4: # $Id: lonindexer.pm,v 1.38 2002/03/14 21:37:04 matthew 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: # 5/31,6/1,6/2,6/15 Scott Harrison
38: # 6/26,7/8 H. K. Ng
39: # 8/6,8/7,8/10 Scott Harrison
1.18 ng 40: # 8/14 H. K. Ng
1.24 harris41 41: # 8/28,10/15,11/28,11/29 Scott Harrison
1.25 matthew 42: # 11/30 Matthew Hall
1.28 harris41 43: # 12/11,12/13 Scott Harrison
1.32 harris41 44: # YEAR=2002
45: # 1/17 Scott Harrison
1.23 harris41 46: #
47: ###
48:
49: ###############################################################################
50: ## ##
51: ## ORGANIZATION OF THIS PERL MODULE ##
52: ## ##
53: ## 1. Description of functions ##
54: ## 2. Modules used by this module ##
55: ## 3. Choices for different output views (detailed, summary, xml, etc) ##
56: ## 4. BEGIN block (to be run once after compilation) ##
57: ## 5. Handling routine called via Apache and mod_perl ##
58: ## 6. Other subroutines ##
59: ## ##
60: ###############################################################################
1.7 harris41 61:
1.1 www 62: package Apache::lonindexer;
63:
1.23 harris41 64: # ------------------------------------------------- modules used by this module
1.1 www 65: use strict;
66: use Apache::lonnet();
1.30 harris41 67: use Apache::loncommon();
1.1 www 68: use Apache::Constants qw(:common);
1.2 harris41 69: use Apache::File;
70: use GDBM_File;
71:
1.23 harris41 72: # ---------------------------------------- variables used throughout the module
1.17 harris41 73: my %hash; # tied to a user-specific gdbm file
74: my %dirs; # keys are directories, values are the open/close status
75: my %language; # has the reference information present in language.tab
76:
77: # ----- Values which are set by the handler subroutine and are accessible to
78: # ----- other methods.
79: my $extrafield; # default extra table cell
80: my $fnum; # file counter
81: my $dnum; # directory counter
1.1 www 82:
1.23 harris41 83: # ----------------------------- Handling routine called via Apache and mod_perl
1.1 www 84: sub handler {
85: my $r = shift;
86: $r->content_type('text/html');
87: $r->send_http_header;
88: return OK if $r->header_only;
1.9 harris41 89: $fnum=0;
1.16 harris41 90: $dnum=0;
1.22 harris41 91: untie %hash;
1.17 harris41 92:
1.23 harris41 93: # ------------------------------------- read in machine configuration variables
1.10 harris41 94: my $iconpath= $r->dir_config('lonIconsURL') . "/";
1.1 www 95: my $domain = $r->dir_config('lonDefDomain');
96: my $role = $r->dir_config('lonRole');
97: my $loadlim = $r->dir_config('lonLoadLim');
98: my $servadm = $r->dir_config('lonAdmEMail');
99: my $sysadm = $r->dir_config('lonSysEMail');
100: my $lonhost = $r->dir_config('lonHostID');
101: my $tabdir = $r->dir_config('lonTabDir');
102:
1.7 harris41 103: my $fileclr='#ffffe6';
1.15 harris41 104: my $line;
105: my (@attrchk,@openpath);
106: my $uri=$r->uri;
107:
1.7 harris41 108: # -------------------------------------- see if called from an interactive mode
1.35 matthew 109: # Get the parameters from the query string
1.36 matthew 110: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
111: ['catalogmode','launch','acts','mode','form','element']);
1.35 matthew 112: #-------------------------------------------------------------------
1.17 harris41 113: my $closebutton='';
1.7 harris41 114: my $groupimportbutton='';
115: my $colspan='';
1.14 harris41 116:
117: $extrafield='';
1.17 harris41 118: my $diropendb =
119: "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_indexer.db";
1.15 harris41 120:
121: if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT,0640)) {
122: if ($ENV{'form.launch'} eq '1') {
1.17 harris41 123: &start_fresh_session();
1.15 harris41 124: }
1.17 harris41 125:
126: # -------------------- refresh environment with user database values (in %hash)
1.15 harris41 127: if ($hash{'mode_catalog'} eq 'interactive') {
128: $ENV{'form.catalogmode'}='interactive';
129: }
130: if ($hash{'mode_catalog'} eq 'groupimport') {
131: $ENV{'form.catalogmode'}='groupimport';
132: }
133:
1.17 harris41 134: # --------------------- define extra fields and buttons in case of special mode
1.15 harris41 135: if ($ENV{'form.catalogmode'} eq 'interactive') {
136: $hash{'mode_catalog'}='interactive';
137: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
138: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
1.17 harris41 139: ' border="0" /></td>';
1.15 harris41 140: $colspan=" colspan='2' ";
141: $closebutton=<<END;
1.7 harris41 142: <input type="button" name="close" value='CLOSE' onClick="self.close()">
143: END
1.16 harris41 144: }
1.15 harris41 145: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
146: $hash{'mode_catalog'}='groupimport';
147: $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
148: '<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
1.17 harris41 149: ' border="0" /></td>';
1.15 harris41 150: $colspan=" colspan='2' ";
151: $closebutton=<<END;
1.7 harris41 152: <input type="button" name="close" value='CLOSE' onClick="self.close()">
153: END
1.15 harris41 154: $groupimportbutton=<<END;
1.17 harris41 155: <input type="button" name="groupimport" value='GROUP IMPORT'
156: onClick="javascript:select_group()">
1.7 harris41 157: END
1.15 harris41 158: }
1.35 matthew 159: # Additions made by Matthew to make the browser a little easier to deal
160: # with in the future.
161: #
162: # $mode (at this time) indicates if we are in edit mode.
163: # $form is the name of the form that the URL is placed when the
164: # selection is made.
165: # $element is the name of the element in $formname which receives
166: # the URL.
1.37 matthew 167: # &Apache::lonxml::debug('Checking mode, form, element');
1.35 matthew 168: &setvalues(\%hash,'form_mode' ,\%ENV,'form.mode' );
169: &setvalues(\%hash,'form_form' ,\%ENV,'form.form' );
170: &setvalues(\%hash,'form_element',\%ENV,'form.element');
171:
172: my $mode = $ENV{'form.mode'};
173: my ($form,$element);
1.39 ! matthew 174: if ($mode eq 'edit' || $mode eq 'parmset') {
1.35 matthew 175: $form = $ENV{'form.form'};
176: $element = $ENV{'form.element'};
177: }
178: &Apache::lonxml::debug("mode=$mode form=$form element=$element");
1.17 harris41 179: # ------ set catalogmodefunctions to have extra needed javascript functionality
1.15 harris41 180: my $catalogmodefunctions='';
181: if ($ENV{'form.catalogmode'} eq 'interactive' or
182: $ENV{'form.catalogmode'} eq 'groupimport') {
1.35 matthew 183: # The if statement below sets us up to use the old version
184: # by default (ie. if $mode is undefined). This is the easy
185: # way out. Hopefully in the future I'll find a way to get
186: # the calls dealt with in a more comprehensive manner.
1.39 ! matthew 187: if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
1.35 matthew 188: $catalogmodefunctions=<<"END";
1.7 harris41 189: function select_data(title,url) {
190: changeTitle(title);
191: changeURL(url);
1.8 harris41 192: self.close();
193: }
194: function select_group() {
1.20 harris41 195: window.location="/adm/groupsort?catalogmode=groupimport&acts="+document.forms.fileattr.acts.value;
1.16 harris41 196: }
1.7 harris41 197: function changeTitle(val) {
1.35 matthew 198: if (opener.inf) {
199: if (opener.inf.document.forms.resinfo.elements.t) {
200: opener.inf.document.forms.resinfo.elements.t.value=val;
201: }
202: }
203: }
204: function changeURL(val) {
205: if (opener.inf) {
206: if (opener.inf.document.forms.resinfo.elements.u) {
207: opener.inf.document.forms.resinfo.elements.u.value=val;
208: }
1.7 harris41 209: }
210: }
1.35 matthew 211: END
1.39 ! matthew 212: } elsif ($mode eq 'edit') { # we are in 'edit' mode
1.35 matthew 213: $catalogmodefunctions=<<END;
214: // mode = $mode
215: function select_data(title,url) {
216: changeURL(url);
217: self.close();
218: }
219:
220: function select_group() {
221: window.location="/adm/groupsort?catalogmode=interactive&form=$form&element=$element&mode=edit&acts="+document.forms.fileattr.acts.value;
222: }
223:
1.7 harris41 224: function changeURL(val) {
1.35 matthew 225: if (window.opener.document) {
226: window.opener.document.forms["$form"].elements["$element"].value=val;
227: } else {
228: alert("The file you selected is: "+val);
1.7 harris41 229: }
230: }
1.35 matthew 231:
1.7 harris41 232: END
1.39 ! matthew 233: } elsif ($mode eq 'parmset') {
! 234: $catalogmodefunctions=<<END;
! 235: // mode = $mode
! 236: function select_data(title,url) {
! 237: changeURL(url);
! 238: self.close();
! 239: }
! 240:
! 241: function select_group() {
! 242: window.location="/adm/groupsort?catalogmode=interactive&form=$form&element=$element&mode=parmset&acts="+document.forms.fileattr.acts.value;
! 243: }
! 244:
! 245: function changeURL(val) {
! 246: if (window.opener.document) {
! 247: var elementname = "$element"+"_value";
! 248: var checkboxname = "$element"+"_setparmval";
! 249: window.opener.document.forms["$form"].elements[elementname].value=val;
! 250: window.opener.document.forms["$form"].elements[checkboxname].checked=true;
! 251: } else {
! 252: alert("The file you selected is: "+val);
! 253: }
! 254: }
! 255:
! 256: END
! 257: }
1.15 harris41 258: }
1.38 matthew 259: $catalogmodefunctions.=<<END;
260: var acts='';
261: function rep_dirpath(suffix,val) {
262: eval("document.forms.dirpath"+suffix+".acts.value=val");
263: }
264: END
1.16 harris41 265: if ($ENV{'form.catalogmode'} eq 'groupimport') {
1.38 matthew 266: $catalogmodefunctions.=<<END;
1.16 harris41 267: function queue(val) {
268: if (eval("document.forms."+val+".filelink.checked")) {
269: var l=val.length;
270: var v=val.substring(4,l);
271: document.forms.fileattr.acts.value+='1a'+v+'b';
272: }
273: else {
274: var l=val.length;
275: var v=val.substring(4,l);
276: document.forms.fileattr.acts.value+='0a'+v+'b';
277: }
278: }
279: END
280: }
1.17 harris41 281:
1.1 www 282: # ---------------------------------------------------------------- Print Header
1.15 harris41 283: $r->print(<<ENDHEADER);
1.1 www 284: <html>
285: <head>
1.2 harris41 286: <title>The LearningOnline Network With CAPA Directory Browser</title>
1.3 harris41 287:
1.19 harris41 288: <script type="text/javascript">
1.7 harris41 289: $catalogmodefunctions
1.2 harris41 290: function openWindow(url, wdwName, w, h, toolbar,scrollbar) {
291: var options = "width=" + w + ",height=" + h + ",";
292: options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
293: options += "menubar=no,toolbar="+toolbar+",location=no,directories=no";
294: var newWin = window.open(url, wdwName, options);
295: newWin.focus();
296: }
1.16 harris41 297: function gothere(val) {
298: window.location=val+'?acts='+document.forms.fileattr.acts.value;
299: }
1.14 harris41 300: </script>
1.3 harris41 301:
1.1 www 302: </head>
303: <body bgcolor="#FFFFFF">
304: ENDHEADER
1.17 harris41 305:
306: # - Evaluate actions from previous page (both cumulatively and chronologically)
1.16 harris41 307: if ($ENV{'form.catalogmode'} eq 'groupimport') {
308: my $acts=$ENV{'form.acts'};
309: my @Acts=split(/b/,$acts);
310: my %ahash;
311: my %achash;
312: my $ac=0;
1.17 harris41 313: # some initial hashes for working with data
1.27 harris41 314: foreach (@Acts) {
1.16 harris41 315: my ($state,$ref)=split(/a/);
316: $ahash{$ref}=$state;
317: $achash{$ref}=$ac;
318: $ac++;
1.27 harris41 319: }
1.17 harris41 320: # sorting through the actions and changing the tied database hash
1.27 harris41 321: foreach (sort {$achash{$a}<=>$achash{$b}} (keys %ahash)) {
1.16 harris41 322: my $key=$_;
323: if ($ahash{$key} eq '1') {
324: $hash{'store_'.$hash{'pre_'.$key.'_link'}}=
325: $hash{'pre_'.$key.'_title'};
326: $hash{'storectr_'.$hash{'pre_'.$key.'_link'}}=
327: $hash{'storectr'}+0;
328: $hash{'storectr'}++;
329: }
330: if ($ahash{$key} eq '0') {
331: if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
332: delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
333: }
334: }
1.27 harris41 335: }
1.17 harris41 336: # deleting the previously cached listing
1.27 harris41 337: foreach (keys %hash) {
1.16 harris41 338: if ($_ =~ /^pre_/ && $_ =~/link$/) {
339: my $key = $_;
340: $key =~ s/^pre_//;
341: $key =~ s/_[^_]*$//;
342: delete $hash{'pre_'.$key.'_title'};
343: delete $hash{'pre_'.$key.'_link'};
344: }
1.27 harris41 345: }
1.16 harris41 346: }
347:
1.23 harris41 348: # ---------------------------------------------------------------- output title
1.17 harris41 349: $r->print('<h2><font color="#888888">The LearningOnline With CAPA '.
350: 'Network Directory Browser</font></h2>'."\n");
1.23 harris41 351: # ---------------------------------- get state of file attributes to be showing
1.6 harris41 352: if ($ENV{'form.attrs'} ne "") {
1.18 ng 353: for (my $i=0; $i<=6; $i++) {
1.6 harris41 354: delete $hash{'display_attrs_'.$i};
355: if ($ENV{'form.attr'.$i} == 1) {
356: $attrchk[$i] = "checked";
357: $hash{'display_attrs_'.$i} = 1;
358: }
359: }
360: } else {
1.18 ng 361: for (my $i=0; $i<=6; $i++) {
1.6 harris41 362: $attrchk[$i] = "checked" if $hash{'display_attrs_'.$i} == 1;
363: }
364: }
1.23 harris41 365: # ------------------------------- output state of file attributes to be showing
1.15 harris41 366: $r->print(<<END);
1.17 harris41 367: <b><font color="#666666">Display file attributes</font></b><br />
368: <form method="post" name="fileattr" action="$uri"
369: enctype="application/x-www-form-urlencoded">
1.1 www 370: <table border=0><tr>
1.16 harris41 371: <td><input type="checkbox" name="attr0" value="1" $attrchk[0] /> Size</td>
1.18 ng 372: <td><input type="checkbox" name="attr1" value="1" $attrchk[1] /> Last access</td>
373: <td><input type="checkbox" name="attr2" value="1" $attrchk[2] /> Last modified</td>
374: <td><input type="checkbox" name="attr6" value="1" $attrchk[6] /> All versions</td>
1.1 www 375: </tr><tr>
1.16 harris41 376: <td><input type="checkbox" name="attr3" value="1" $attrchk[3] /> Author</td>
377: <td><input type="checkbox" name="attr4" value="1" $attrchk[4] /> Keywords</td>
378: <td><input type="checkbox" name="attr5" value="1" $attrchk[5] /> Language</td>
1.18 ng 379: <td> </td>
1.1 www 380: </tr></table>
1.16 harris41 381: <input type="hidden" name="dirPointer" value="on" />
382: <input type="hidden" name="acts" value="" />
383: <input type="submit" name="attrs" value="Review" />
384: <input type="submit" name="attrs" value="Refresh" />
1.7 harris41 385: $closebutton
386: $groupimportbutton
1.1 www 387: </form>
388: END
389:
1.23 harris41 390: # ----------------- output starting row to the indexed file/directory hierarchy
1.15 harris41 391: my $titleclr="#ddffff";
392: $r->print("<table border=0><tr><td bgcolor=#eeeeee>\n");
393: $r->print("<table border=0><tr>\n");
394: $r->print("<td $colspan bgcolor=$titleclr><b>Name</b></td>\n");
1.17 harris41 395: $r->print("<td bgcolor=$titleclr align=right><b>Size (bytes) ".
396: "</b></td>\n") if ($hash{'display_attrs_0'} == 1);
397: $r->print("<td bgcolor=$titleclr><b>Last accessed</b></td>\n")
398: if ($hash{'display_attrs_1'} == 1);
399: $r->print("<td bgcolor=$titleclr><b>Last modified</b></td>\n")
400: if ($hash{'display_attrs_2'} == 1);
401: $r->print("<td bgcolor=$titleclr><b>Author(s)</b></td>\n")
402: if ($hash{'display_attrs_3'} == 1);
403: $r->print("<td bgcolor=$titleclr><b>Keywords</b></td>\n")
404: if ($hash{'display_attrs_4'} == 1);
405: $r->print("<td bgcolor=$titleclr><b>Language</b></td>\n")
406: if ($hash{'display_attrs_5'} == 1);
1.15 harris41 407: $r->print("</tr>");
1.5 harris41 408:
1.23 harris41 409: # ----------------- read in what directories have previously been set to "open"
1.27 harris41 410: foreach (keys %hash) {
1.4 harris41 411: if ($_ =~ /^diropen_status_/) {
412: my $key = $_;
413: $key =~ s/^diropen_status_//;
414: $dirs{$key} = $hash{$_};
415: }
1.27 harris41 416: }
1.4 harris41 417:
1.2 harris41 418: if ($ENV{'form.openuri'}) { # take care of review and refresh options
419: my $uri=$ENV{'form.openuri'};
1.4 harris41 420: if (exists($hash{'diropen_status_'.$uri})) {
421: my $cursta = $hash{'diropen_status_'.$uri};
1.2 harris41 422: $dirs{$uri} = 'open';
1.4 harris41 423: $hash{'diropen_status_'.$uri} = 'open';
424: if ($cursta eq 'open') {
425: $dirs{$uri} = 'closed';
426: $hash{'diropen_status_'.$uri} = 'closed';
427: }
1.2 harris41 428: } else {
1.4 harris41 429: $hash{'diropen_status_'.$uri} = 'open';
1.2 harris41 430: $dirs{$uri} = 'open';
431: }
432: }
1.12 ng 433:
434: my $bredir = $ENV{'form.dirPointer'};
435: my $toplevel;
1.13 ng 436: my $indent = 0;
1.12 ng 437: $uri = $uri.'/' if $uri !~ /.*\/$/;
1.17 harris41 438:
1.13 ng 439: if ($bredir ne "on") {
1.12 ng 440: $hash{'top.level'} = $uri;
441: $toplevel = $uri;
1.13 ng 442:
443: } else {
444: $toplevel = $hash{'top.level'};
445: }
1.17 harris41 446:
1.23 harris41 447: # -------------------------------- if not at top level, provide an uplink arrow
1.13 ng 448: if ($toplevel ne "/res/"){
449: my (@uri_com) = split(/\//,$uri);
450: pop @uri_com;
451: my $upone = join('/',@uri_com);
452: my @list = qw (0);
453: &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
454: $indent = 1;
1.12 ng 455: }
1.17 harris41 456:
1.23 harris41 457: # -------- recursively go through all the directories and output as appropriate
1.16 harris41 458: &scanDir ($r,$toplevel,$indent,\%hash);
1.12 ng 459:
1.23 harris41 460: # ---------------------------- embed hidden information useful for group import
1.8 harris41 461: $r->print("<form name='fnum'>");
462: $r->print("<input type='hidden' name='fnum' value='$fnum'></form>");
1.17 harris41 463:
1.23 harris41 464: # -------------------------------------------------------------- end the tables
1.2 harris41 465: $r->print("</table>");
466: $r->print("</td></tr></table>");
1.17 harris41 467:
1.23 harris41 468: # --------------------------------------------------- end the output and return
1.2 harris41 469: $r->print("</body></html>\n");
1.4 harris41 470: untie(%hash);
1.2 harris41 471: } else {
1.17 harris41 472: $r->print('<html><head></head><body>Unable to tie hash to db '.
473: 'file</body></html>');
474: return OK;
1.2 harris41 475: }
1.1 www 476: return OK;
477: }
1.2 harris41 478:
1.17 harris41 479: # ----------------------------------------------- recursive scan of a directory
1.2 harris41 480: sub scanDir {
1.16 harris41 481: my ($r,$startdir,$indent,$hashref)=@_;
1.3 harris41 482: my ($compuri,$curdir);
483: my $dirptr=16384;
1.1 www 484: $indent++;
485:
1.2 harris41 486: my %dupdirs = %dirs;
487: my @list=&get_list($r,$startdir);
488: foreach my $line (@list) {
1.5 harris41 489: my ($strip,$dom,$foo,$testdir,$foo)=split(/\&/,$line,5);
1.4 harris41 490: next if $strip =~ /.*\.meta$/;
1.18 ng 491: my (@fileparts) = split(/\./,$strip);
492: if ($hash{'display_attrs_6'} != 1) {
493: if (scalar(@fileparts) >= 3) {
494: my $fext = pop @fileparts;
495: my $ov = pop @fileparts;
496: my $fname = join ('.',@fileparts,$fext);
497: next if (grep /$fname/,@list and $ov =~ /\d+/);
498: }
499: }
500:
1.5 harris41 501: if ($dom eq "domain") {
1.17 harris41 502: $compuri = join('',$strip,"/"); # dom list has /res/<domain name>
1.3 harris41 503: $curdir = $compuri;
1.2 harris41 504: } else {
1.17 harris41 505: # user, dir & file have name only, i.e., w/o path
506: $compuri = join('',$startdir,$strip,"/");
1.3 harris41 507: $curdir = $startdir;
1.2 harris41 508: }
1.11 ng 509: my $diropen = "closed";
1.5 harris41 510: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/)) {
1.3 harris41 511: while (my ($key,$val)= each %dupdirs) {
1.5 harris41 512: if ($key eq $compuri and $val eq "open") {
1.11 ng 513: $diropen = "opened";
1.5 harris41 514: delete $dupdirs{key},$dirs{$key};
515: }
1.3 harris41 516: }
1.1 www 517: }
1.16 harris41 518: &display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
1.11 ng 519: &scanDir ($r,$compuri,$indent) if $diropen eq "opened";
1.1 www 520: }
521: $indent--;
522: }
523:
1.17 harris41 524: # --------------- get complete matched list based on the uri (returns an array)
1.1 www 525: sub get_list {
526: my ($r,$uri)=@_;
527: my @list;
1.2 harris41 528: my $luri = $uri;
529: $luri =~ s/\//_/g;
530:
1.6 harris41 531: if ($ENV{'form.attrs'} eq "Refresh") {
1.27 harris41 532: foreach (keys %hash) {
1.4 harris41 533: delete $hash{$_} if ($_ =~ /^dirlist_files_/);
1.27 harris41 534: }
1.2 harris41 535: }
536:
1.4 harris41 537: if ($hash{'dirlist_files'.$luri}) {
538: @list = split(/\n/,$hash{'dirlist_files_'.$luri});
1.1 www 539: } else {
1.4 harris41 540: @list = &Apache::lonnet::dirlist($uri);
541: $hash{'dirlist_files_'.$luri} = join('\n',@list);
1.1 www 542: }
543: return @list=&match_ext($r,@list);
544: }
545:
1.17 harris41 546: # -------------------- filters out files based on extensions (returns an array)
1.1 www 547: sub match_ext {
548: my ($r,@packlist)=@_;
549: my @trimlist;
550: my $nextline;
551: my @fileext;
552: my $dirptr=16384;
553:
1.2 harris41 554: foreach my $line (@packlist) {
555: chomp $line;
556: $line =~ s/^\/home\/httpd\/html//;
557: my @unpackline = split (/\&/,$line);
558: next if ($unpackline[0] eq ".");
559: next if ($unpackline[0] eq "..");
560: my @filecom = split (/\./,$unpackline[0]);
561: my $fext = pop(@filecom);
562: my $fnptr = $unpackline[3]&$dirptr;
563: if ($fnptr == 0 and $unpackline[3] ne "") {
1.28 harris41 564: my $embstyle = &Apache::loncommon::fileembstyle($fext);
1.25 matthew 565: push @trimlist,$line if (defined($embstyle) &&
1.32 harris41 566: ($embstyle ne 'hdn' or $fext eq 'meta'));
1.1 www 567: } else {
1.2 harris41 568: push @trimlist,$line;
1.1 www 569: }
570: }
1.4 harris41 571: @trimlist = sort (@trimlist);
1.1 www 572: return @trimlist;
573: }
574:
1.17 harris41 575: # ------------------------------- displays one line in appropriate table format
1.23 harris41 576: sub display_line {
1.16 harris41 577: my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
1.1 www 578: my (@pathfn, $fndir, $fnptr);
579: my $dirptr=16384;
580: my $fileclr="#ffffe6";
1.10 harris41 581: my $iconpath= $r->dir_config('lonIconsURL') . "/";
1.1 www 582:
583: my @filecom = split (/\&/,$line);
584: my @pathcom = split (/\//,$filecom[0]);
585: my $listname = $pathcom[scalar(@pathcom)-1];
586: my $fnptr = $filecom[3]&$dirptr;
1.4 harris41 587: my $msg = 'View '.$filecom[0].' resources';
1.11 ng 588: $msg = 'Close '.$filecom[0].' directory' if $diropen eq "opened";
1.1 www 589:
590: my $tabtag="</td>";
591: my $i=0;
592:
593: while ($i<=5) {
1.17 harris41 594: $tabtag=join('',$tabtag,"<td bgcolor=",$fileclr,"> </td>")
595: if $hash{'display_attrs_'.$i} == 1;
1.1 www 596: $i++;
597: }
1.17 harris41 598:
599: # display uplink arrow
1.13 ng 600: if ($filecom[1] eq "viewOneUp") {
601: $r->print("<tr>$extrafield");
602: $r->print("<td bgcolor=$fileclr valign=bottom>\n");
1.16 harris41 603: $r->print ('<form method="post" name="dirpathUP" action="'.$startdir.
604: '/" '.
1.17 harris41 605: 'onSubmit="return rep_dirpath(\'UP\','.
606: 'document.forms.fileattr.acts.value)" '.
1.16 harris41 607: 'enctype="application/x-www-form-urlencoded"'.
608: '>'."\n");
1.17 harris41 609: $r->print ('<input type=hidden name=openuri value="'.
610: $startdir.'">'."\n");
1.16 harris41 611: $r->print ('<input type="hidden" name="acts" value="">'."\n");
1.13 ng 612: $r->print ('<input src="'.$iconpath.'arrow_up.gif"');
1.17 harris41 613: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
614: "\n");
1.13 ng 615: $r->print("Up $tabtag</tr></form>\n");
616: return OK;
617: }
1.17 harris41 618:
619: # display domain
1.1 www 620: if ($filecom[1] eq "domain") {
1.17 harris41 621: $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n")
622: if ($ENV{'form.dirPointer'} eq "on");
1.7 harris41 623: $r->print("<tr>$extrafield");
1.1 www 624: $r->print("<td bgcolor=$fileclr valign=bottom>");
1.2 harris41 625: &begin_form ($r,$filecom[0].'/');
1.3 harris41 626: my $anchor = $filecom[0].'/';
627: $anchor =~ s/\///g;
1.13 ng 628: $r->print ('<a name="'.$anchor.'">');
1.16 harris41 629: $r->print ('<input type="hidden" name="acts" value="">');
1.17 harris41 630: $r->print ('<input src="'.$iconpath.'folder_pointer_'.
631: $diropen.'.gif"');
632: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
633: "\n");
634: $r->print ('<a href="javascript:gothere(\''.$filecom[0].
635: '/\')"><img src="'.$iconpath.'server.gif"');
636: $r->print (' border="0" /></a>'."\n");
1.1 www 637: $r->print("Domain - $listname $tabtag</tr></form>\n");
638: return OK;
1.17 harris41 639:
640: # display user directory
1.1 www 641: }
642: if ($filecom[1] eq "user") {
1.7 harris41 643: $r->print("<tr>$extrafield");
1.13 ng 644: $r->print("<td bgcolor=$fileclr valign=bottom nowrap>\n");
1.2 harris41 645: my $curdir = $startdir.$filecom[0].'/';
1.3 harris41 646: my $anchor = $curdir;
647: $anchor =~ s/\///g;
1.13 ng 648: &begin_form ($r,$curdir);
1.17 harris41 649: $r->print ('<a name="'.$anchor.'"><img src="'.$iconpath.
650: 'whitespace1.gif" border="0" />'."\n");
1.16 harris41 651: $r->print ('<input type="hidden" name="acts" value="">');
1.17 harris41 652: $r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
653: '.gif"');
654: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
655: "\n");
656: $r->print ('<a href="javascript:gothere(\''.$curdir.'\')"><img src='.
657: $iconpath.'quill.gif border="0" name="'.$msg.
658: '" height="22" /></a>');
1.13 ng 659: $r->print ($listname.$tabtag.'</tr></form>'."\n");
1.1 www 660: return OK;
661: }
1.17 harris41 662:
1.1 www 663: # display file
664: if ($fnptr == 0 and $filecom[3] ne "") {
665: my @file_ext = split (/\./,$listname);
1.25 matthew 666: my $curfext = $file_ext[-1];
667: # Set the icon for the file
1.26 matthew 668: my $iconname = "unknown.gif";
1.28 harris41 669: my $embstyle = &Apache::loncommon::fileembstyle($curfext);
1.25 matthew 670: # The unless conditional that follows is a bit of overkill
671: $iconname = $curfext.".gif" unless
1.26 matthew 672: (!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn');
1.25 matthew 673: #
1.2 harris41 674: my $filelink = $startdir.$filecom[0];
1.8 harris41 675: $r->print("<tr><td nowrap valign='bottom' bgcolor=$fileclr>");
1.7 harris41 676: my $metafile = grep /^$filecom[0]\.meta\&/, @list;
677: my $title;
678: if ($ENV{'form.catalogmode'} eq 'interactive') {
679: $title=$listname;
1.8 harris41 680: $title = &Apache::lonnet::metadata($filelink,'title')
681: if ($metafile == 1);
1.7 harris41 682: $title=$listname unless $title;
1.33 harris41 683: my $titleesc=$title;
1.35 matthew 684: $titleesc=~s/\'/\\'/; #' (clean up this spare quote
685: $r->print("<a href=\"javascript:select_data(\'",
1.34 harris41 686: $titleesc,"','",$filelink,"')\">");
1.17 harris41 687: $r->print("<img src='",$iconpath,"select.gif' border='0' /></a>".
688: "\n");
1.8 harris41 689: $r->print("</td><td valign='bottom' nowrap bgcolor=$fileclr>");
690: }
691: elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
692: $title=$listname;
693: $title = &Apache::lonnet::metadata($filelink,'title')
694: if ($metafile == 1);
695: $title=$listname unless $title;
696: $r->print("<form name='form$fnum'>\n");
697: $r->print("<input type='checkbox' name='filelink"."' ".
1.16 harris41 698: "value='$filelink' onClick='".
699: "javascript:queue(\"form$fnum\")' ");
700: if ($hash{'store_'.$filelink}) {
701: $r->print("checked");
702: }
703: $r->print(">\n");
1.8 harris41 704: $r->print("<input type='hidden' name='title"."' ".
705: "value='$title'>\n");
706: $r->print("</form>\n");
707: $r->print("</td><td valign='bottom' nowrap bgcolor=$fileclr>");
1.16 harris41 708: $hash{"pre_${fnum}_link"}=$filelink;
709: $hash{"pre_${fnum}_title"}=$title;
1.8 harris41 710: $fnum++;
1.7 harris41 711: }
1.4 harris41 712:
1.12 ng 713: if ($indent > 0 and $indent < 11) {
1.17 harris41 714: $r->print("<img src=",$iconpath,"whitespace",$indent,
715: ".gif border='0' />\n");
1.11 ng 716: } elsif ($indent >0) {
1.4 harris41 717: my $ten = int($indent/10.);
718: my $rem = $indent%10.0;
719: my $count = 0;
720: while ($count < $ten) {
1.17 harris41 721: $r->print("<img src=",$iconpath,
722: "whitespace10.gif border='0' />\n");
1.1 www 723: $count++;
1.4 harris41 724: }
1.17 harris41 725: $r->print("<img src=",$iconpath,"whitespace",$rem,
726: ".gif border='0' />\n") if $rem > 0;
1.1 www 727: }
1.4 harris41 728:
1.25 matthew 729: $r->print("<img src=$iconpath$iconname border='0' />\n");
1.17 harris41 730: $r->print (" <a href=\"javascript:openWindow('".$filelink.
731: "', 'metadatafile', '450', '500', 'no', 'yes')\";".
732: " TARGET=_self>$listname</a> ");
733:
734: $r->print (" (<a href=\"javascript:openWindow('".$filelink.
735: ".meta', 'metadatafile', '400', '450', 'no', 'yes')\"; ".
736: "TARGET=_self>metadata</a>) ") if ($metafile == 1);
1.2 harris41 737:
1.7 harris41 738: $r->print("</td>\n");
1.17 harris41 739: $r->print("<td bgcolor=$fileclr align=right valign=bottom> ",
740: $filecom[8]," </td>\n")
1.11 ng 741: if $hash{'display_attrs_0'} == 1;
1.17 harris41 742: $r->print("<td bgcolor=$fileclr valign=bottom> ".
743: (localtime($filecom[9]))." </td>\n")
1.11 ng 744: if $hash{'display_attrs_1'} == 1;
1.17 harris41 745: $r->print("<td bgcolor=$fileclr valign=bottom> ".
746: (localtime($filecom[10]))." </td>\n")
1.11 ng 747: if $hash{'display_attrs_2'} == 1;
1.2 harris41 748:
1.6 harris41 749: if ($hash{'display_attrs_3'} == 1) {
1.17 harris41 750: my $author = &Apache::lonnet::metadata($filelink,'author')
751: if ($metafile == 1);
1.2 harris41 752: $author = ' ' if (!$author);
1.17 harris41 753: $r->print("<td bgcolor=$fileclr valign=bottom> ".$author.
754: " </td>\n");
1.2 harris41 755: }
1.6 harris41 756: if ($hash{'display_attrs_4'} == 1) {
1.17 harris41 757: my $keywords = &Apache::lonnet::metadata($filelink,'keywords')
758: if ($metafile == 1);
1.2 harris41 759: $keywords = ' ' if (!$keywords);
1.17 harris41 760: $r->print("<td bgcolor=$fileclr valign=bottom> ".$keywords.
761: " </td>\n");
1.2 harris41 762: }
1.6 harris41 763: if ($hash{'display_attrs_5'} == 1) {
1.17 harris41 764: my $lang = &Apache::lonnet::metadata($filelink,'language')
765: if ($metafile == 1);
1.28 harris41 766: $lang = &Apache::loncommon::languagedescription($lang);
1.2 harris41 767: $lang = ' ' if (!$lang);
1.17 harris41 768: $r->print("<td bgcolor=$fileclr valign=bottom> ".$lang.
769: " </td>\n");
1.2 harris41 770: }
1.1 www 771: $r->print("</tr>\n");
772: }
1.17 harris41 773:
1.2 harris41 774: # -- display directory
1.1 www 775: if ($fnptr == $dirptr) {
776: my @file_ext = split (/\./,$listname);
777: my $curfext = $file_ext[scalar(@file_ext)-1];
1.2 harris41 778: my $curdir = $startdir.$filecom[0].'/';
1.3 harris41 779: my $anchor = $curdir;
780: $anchor =~ s/\///g;
1.7 harris41 781: $r->print("<tr>$extrafield<td bgcolor=$fileclr valign=bottom>");
1.2 harris41 782: &begin_form ($r,$curdir);
1.4 harris41 783: my $indentm1 = $indent-1;
1.11 ng 784: if ($indentm1 < 11 and $indentm1 > 0) {
1.17 harris41 785: $r->print("<img src=",$iconpath,"whitespace",$indentm1,
786: ".gif border='0' />\n");
1.4 harris41 787: } else {
788: my $ten = int($indentm1/10.);
789: my $rem = $indentm1%10.0;
790: my $count = 0;
791: while ($count < $ten) {
1.17 harris41 792: $r->print ("<img src=",$iconpath
793: ,"whitespace10.gif border='0' />\n");
1.12 ng 794: $count++;
1.4 harris41 795: }
1.17 harris41 796: $r->print ("<img src=",$iconpath,"whitespace",$rem,
797: ".gif border='0' />\n") if $rem > 0;
1.1 www 798: }
1.16 harris41 799: $r->print ('<input type="hidden" name="acts" value="">');
1.17 harris41 800: $r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
801: 'folder_pointer_'.$diropen.'.gif"');
802: $r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
803: "\n");
804: $r->print ('<a href="javascript:gothere(\''.$curdir.'\')"><img src="'.
805: $iconpath.'folder_'.$diropen.'.gif" border="0" /></a>'.
806: "\n");
1.13 ng 807: $r->print ("$listname$tabtag</tr></form>\n");
1.1 www 808: }
1.2 harris41 809:
1.1 www 810: }
811:
1.14 harris41 812: # ------------------- prints the beginning of a form for directory or file link
1.1 www 813: sub begin_form {
814: my ($r,$uri) = @_;
1.3 harris41 815: my $anchor = $uri;
816: $anchor =~ s/\///g;
1.17 harris41 817: $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
818: '#'.$anchor.
819: '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
820: ',document.forms.fileattr.acts.value)" '.
1.16 harris41 821: 'enctype="application/x-www-form-urlencoded">'."\n");
1.17 harris41 822: $r->print ('<input type="hidden" name="openuri" value="'.$uri.'">'.
823: "\n");
824: $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n");
1.16 harris41 825: $dnum++;
1.17 harris41 826: }
827:
828: # --------- settings whenever the user causes the indexer window to be launched
829: sub start_fresh_session {
830: delete $hash{'mode_catalog'};
1.35 matthew 831: delete $hash{'form_mode'};
832: delete $hash{'form_form'};
833: delete $hash{'form_element'};
1.27 harris41 834: foreach (keys %hash) {
1.17 harris41 835: if ($_ =~ /^pre_/) {
836: delete $hash{$_};
837: }
838: if ($_ =~ /^store/) {
839: delete $hash{$_};
840: }
1.27 harris41 841: }
1.1 www 842: }
843:
1.35 matthew 844: # ------------------------------------------------------------------- setvalues
845: sub setvalues {
846: # setvalues is used in registerurl to synchronize the database
847: # hash and environment hashes
848: my ($H1,$h1key,$H2,$h2key) =@_;
849: #
850: if (exists $H2->{$h2key}) {
851: $H1->{$h1key} = $H2->{$h2key};
852: } elsif (exists $H1->{$h1key}) {
853: $H2->{$h2key} = $H1->{$h1key};
854: }
855: }
856:
1.1 www 857: 1;
1.23 harris41 858:
859: =head1 NAME
860:
861: Apache::lonindexer - mod_perl module for cross server filesystem browsing
862:
863: =head1 SYNOPSIS
864:
865: Invoked by /etc/httpd/conf/srm.conf:
866:
867: <LocationMatch "^/res.*/$">
868: SetHandler perl-script
869: PerlHandler Apache::lonindexer
870: </LocationMatch>
871:
872: =head1 INTRODUCTION
873:
874: This module enables a scheme of browsing across a cross server.
875:
876: This is part of the LearningOnline Network with CAPA project
877: described at http://www.lon-capa.org.
878:
879: =head1 BEGIN SUBROUTINE
880:
881: This routine is only run once after compilation.
882:
883: =over 4
884:
885: =item *
886:
887: Initializes %language hash table.
888:
889: =back
890:
891: =head1 HANDLER SUBROUTINE
892:
893: This routine is called by Apache and mod_perl.
894:
895: =over 4
896:
897: =item *
898:
899: read in machine configuration variables
900:
901: =item *
902:
903: see if called from an interactive mode
904:
905: =item *
906:
907: refresh environment with user database values (in %hash)
908:
909: =item *
910:
911: define extra fields and buttons in case of special mode
912:
913: =item *
914:
915: set catalogmodefunctions to have extra needed javascript functionality
916:
917: =item *
918:
919: print header
920:
921: =item *
922:
923: evaluate actions from previous page (both cumulatively and chronologically)
924:
925: =item *
926:
927: output title
928:
929: =item *
930:
931: get state of file attributes to be showing
932:
933: =item *
934:
935: output state of file attributes to be showing
936:
937: =item *
938:
939: output starting row to the indexed file/directory hierarchy
940:
941: =item *
942:
943: read in what directories have previously been set to "open"
944:
945: =item *
946:
947: if not at top level, provide an uplink arrow
948:
949: =item *
950:
951: recursively go through all the directories and output as appropriate
952:
953: =item *
954:
955: information useful for group import
956:
957: =item *
958:
959: end the tables
960:
961: =item *
962:
963: end the output and return
964:
965: =back
966:
967: =head1 OTHER SUBROUTINES
968:
969: =over 4
970:
971: =item *
972:
973: scanDir - recursive scan of a directory
974:
975: =item *
976:
977: get_list - get complete matched list based on the uri (returns an array)
978:
979: =item *
980:
981: match_ext - filters out files based on extensions (returns an array)
982:
983: =item *
984:
985: display_line - displays one line in appropriate table format
986:
987: =item *
988:
989: begin_form - prints the beginning of a form for directory or file link
990:
991: =item *
992:
993: start_fresh_session - settings whenever the user causes the indexer window
994: to be launched
995:
996: =back
997:
998: =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