Annotation of loncom/interface/lonindexer.pm, revision 1.81

1.1       www         1: # The LearningOnline Network with CAPA
1.24      harris41    2: # Directory Indexer
                      3: #
1.81    ! sakharuk    4: # $Id: lonindexer.pm,v 1.80 2003/11/08 10:33:27 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);
1.70      ng         65: use Apache::lonmeta;
1.2       harris41   66: use Apache::File;
1.77      www        67: use Apache::lonlocal;
1.2       harris41   68: use GDBM_File;
                     69: 
1.23      harris41   70: # ---------------------------------------- variables used throughout the module
1.17      harris41   71: my %hash; # tied to a user-specific gdbm file
                     72: my %dirs; # keys are directories, values are the open/close status
                     73: my %language; # has the reference information present in language.tab
                     74: 
                     75: # ----- Values which are set by the handler subroutine and are accessible to
                     76: # -----     other methods.
                     77: my $extrafield; # default extra table cell
                     78: my $fnum; # file counter
                     79: my $dnum; # directory counter
1.1       www        80: 
1.40      matthew    81: # ----- Used to include or exclude files with certain extensions.
1.43      matthew    82: my @Only = ();
1.40      matthew    83: my @Omit = ();
                     84: 
                     85: 
1.23      harris41   86: # ----------------------------- Handling routine called via Apache and mod_perl
1.1       www        87: sub handler {
                     88:     my $r = shift;
1.67      matthew    89:     my $c = $r->connection();
1.76      www        90:     &Apache::loncommon::content_type($r,'text/html');
1.50      albertel   91:     &Apache::loncommon::no_cache($r);
1.1       www        92:     $r->send_http_header;
                     93:     return OK if $r->header_only;
1.9       harris41   94:     $fnum=0;
1.16      harris41   95:     $dnum=0;
1.17      harris41   96: 
1.43      matthew    97:     # Deal with stupid global variables (is there a way around making
                     98:     # these global to this package?  It is just so wrong....)
                     99:     undef (@Only);
                    100:     undef (@Omit);
                    101: 
1.23      harris41  102: # ------------------------------------- read in machine configuration variables
1.10      harris41  103:     my $iconpath= $r->dir_config('lonIconsURL') . "/";
1.1       www       104:     my $domain  = $r->dir_config('lonDefDomain');
                    105:     my $role    = $r->dir_config('lonRole');
                    106:     my $loadlim = $r->dir_config('lonLoadLim');
                    107:     my $servadm = $r->dir_config('lonAdmEMail');
                    108:     my $sysadm  = $r->dir_config('lonSysEMail');
                    109:     my $lonhost = $r->dir_config('lonHostID');
                    110:     my $tabdir  = $r->dir_config('lonTabDir');
                    111: 
1.7       harris41  112:     my $fileclr='#ffffe6';
1.15      harris41  113:     my $line;
                    114:     my (@attrchk,@openpath);
                    115:     my $uri=$r->uri;
                    116: 
1.7       harris41  117: # -------------------------------------- see if called from an interactive mode
1.35      matthew   118:     # Get the parameters from the query string
1.36      matthew   119:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.40      matthew   120: 	     ['catalogmode','launch','acts','mode','form','element',
1.79      albertel  121:               'only','omit','titleelement']);
1.35      matthew   122:     #-------------------------------------------------------------------
1.17      harris41  123:     my $closebutton='';
1.7       harris41  124:     my $groupimportbutton='';
                    125:     my $colspan=''; 
1.14      harris41  126: 
                    127:     $extrafield='';
1.17      harris41  128:     my $diropendb = 
1.66      albertel  129: 	"/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_indexer.db";
1.67      matthew   130:     %hash = ();
1.68      albertel  131:     {
                    132: 	my %dbfile;
                    133: 	if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) {
                    134: 	    while(my($key,$value)=each(%dbfile)) {
                    135: 		$hash{$key}=$value;
                    136: 	    }
                    137: 	    untie(%dbfile);
                    138: 	}
                    139:     }
                    140:     {
1.15      harris41  141: 	if ($ENV{'form.launch'} eq '1') {
1.17      harris41  142: 	    &start_fresh_session();
1.43      matthew   143:         }
1.17      harris41  144: # -------------------- refresh environment with user database values (in %hash)
1.48      matthew   145: 	&setvalues(\%hash,'form.catalogmode',\%ENV,'form.catalogmode'   );
1.15      harris41  146: 
1.17      harris41  147: # --------------------- define extra fields and buttons in case of special mode
1.15      harris41  148: 	if ($ENV{'form.catalogmode'} eq 'interactive') {
                    149: 	    $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
                    150: 		'<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
1.17      harris41  151: 		' border="0" /></td>';
1.15      harris41  152: 	    $colspan=" colspan='2' ";
1.77      www       153:             my $cl=&mt('Close');
1.15      harris41  154:             $closebutton=<<END;
1.77      www       155: <input type="button" name="close" value='$cl' onClick="self.close()">
1.7       harris41  156: END
1.16      harris41  157:         }
1.15      harris41  158: 	elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
                    159: 	    $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
                    160: 		'<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
1.17      harris41  161: 		' border="0" /></td>';
1.15      harris41  162: 	    $colspan=" colspan='2' ";
1.77      www       163: 	    my $cl=&mt('Close');
                    164:             my $gi=&mt('Group Import');
1.15      harris41  165:             $closebutton=<<END;
1.77      www       166: <input type="button" name="close" value='$cl' onClick="self.close()">
1.7       harris41  167: END
1.15      harris41  168:             $groupimportbutton=<<END;
1.77      www       169: <input type="button" name="groupimport" value='$gi'
1.17      harris41  170: onClick="javascript:select_group()">
1.7       harris41  171: END
1.15      harris41  172:         }
1.35      matthew   173: 	# Additions made by Matthew to make the browser a little easier to deal
                    174: 	# with in the future.
                    175: 	#
                    176: 	# $mode (at this time) indicates if we are in edit mode.
                    177: 	# $form is the name of the form that the URL is placed when the
                    178: 	#       selection is made.
                    179: 	# $element is the name of the element in $formname which receives
                    180: 	#       the URL.
1.37      matthew   181: 	# &Apache::lonxml::debug('Checking mode, form, element');
1.79      albertel  182: 	&setvalues(\%hash,'form.mode'        ,\%ENV,'form.mode'   );
                    183: 	&setvalues(\%hash,'form.form'        ,\%ENV,'form.form'   );
                    184: 	&setvalues(\%hash,'form.element'     ,\%ENV,'form.element');
                    185: 	&setvalues(\%hash,'form.titleelement',\%ENV,'form.titleelement');
                    186: 	&setvalues(\%hash,'form.only'        ,\%ENV,'form.only'   );
                    187: 	&setvalues(\%hash,'form.omit'        ,\%ENV,'form.omit'   );
1.35      matthew   188: 
1.40      matthew   189:         # Deal with 'omit' and 'only' 
                    190:         if (exists $ENV{'form.omit'}) {
                    191:             @Omit = split(',',$ENV{'form.omit'});
                    192:         }
                    193:         if (exists $ENV{'form.only'}) {
                    194:             @Only = split(',',$ENV{'form.only'});
                    195:         }
                    196:         
1.35      matthew   197: 	my $mode = $ENV{'form.mode'};
1.79      albertel  198: 	my ($form,$element,$titleelement);
1.39      matthew   199: 	if ($mode eq 'edit' || $mode eq 'parmset') {
1.79      albertel  200: 	    $form         = $ENV{'form.form'};
                    201: 	    $element      = $ENV{'form.element'};
                    202: 	    $titleelement = $ENV{'form.titleelement'};
1.35      matthew   203: 	}
1.79      albertel  204: 	&Apache::lonxml::debug("mode=$mode form=$form element=$element
                    205:                                 titleelement=$titleelement");
1.17      harris41  206: # ------ set catalogmodefunctions to have extra needed javascript functionality
1.15      harris41  207: 	my $catalogmodefunctions='';
                    208: 	if ($ENV{'form.catalogmode'} eq 'interactive' or
                    209: 	    $ENV{'form.catalogmode'} eq 'groupimport') {
1.35      matthew   210: 	    # The if statement below sets us up to use the old version
                    211: 	    # by default (ie. if $mode is undefined).  This is the easy
                    212: 	    # way out.  Hopefully in the future I'll find a way to get 
                    213: 	    # the calls dealt with in a more comprehensive manner.
1.41      www       214: 
                    215: #
                    216: # There is now also mode "simple", which is for the simple version of the rat
                    217: #
                    218: #
1.39      matthew   219: 	    if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
1.40      matthew   220:                 my $location = "/adm/groupsort?catalogmode=groupimport&";
1.41      www       221:                 $location .= "mode=".$mode."&";
1.40      matthew   222:                 $location .= "acts=";
1.35      matthew   223: 		$catalogmodefunctions=<<"END";
1.7       harris41  224: function select_data(title,url) {
                    225:     changeTitle(title);
                    226:     changeURL(url);
1.8       harris41  227:     self.close();
                    228: }
                    229: function select_group() {
1.40      matthew   230:     window.location="$location"+document.forms.fileattr.acts.value;
1.16      harris41  231: }
1.7       harris41  232: function changeTitle(val) {
1.35      matthew   233:     if (opener.inf) {
                    234:         if (opener.inf.document.forms.resinfo.elements.t) {
                    235:             opener.inf.document.forms.resinfo.elements.t.value=val;
                    236:         }
                    237:     }
                    238: }
                    239: function changeURL(val) {
                    240:     if (opener.inf) {
                    241:         if (opener.inf.document.forms.resinfo.elements.u) {
                    242: 	    opener.inf.document.forms.resinfo.elements.u.value=val;
                    243:         }
1.7       harris41  244:     }
                    245: }
1.35      matthew   246: END
1.39      matthew   247:             } elsif ($mode eq 'edit') { # we are in 'edit' mode
1.40      matthew   248:                 my $location = "/adm/groupsort?catalogmode=interactive&";
                    249:                 $location .= "form=$form&element=$element&mode=edit&acts=";
1.35      matthew   250: 		$catalogmodefunctions=<<END;
                    251: // mode = $mode
                    252: function select_data(title,url) {
                    253:     changeURL(url);
1.79      albertel  254:     changeTitle(title);
1.35      matthew   255:     self.close();
                    256: }
                    257: 
                    258: function select_group() {
1.40      matthew   259:     window.location="$location"+document.forms.fileattr.acts.value;
1.35      matthew   260: }
                    261: 
1.7       harris41  262: function changeURL(val) {
1.35      matthew   263:     if (window.opener.document) {
                    264: 	window.opener.document.forms["$form"].elements["$element"].value=val;
                    265:     } else {
                    266: 	    alert("The file you selected is: "+val);
1.7       harris41  267:     }
                    268: }
                    269: END
1.79      albertel  270:                 if (!$titleelement) {
                    271: 		    $catalogmodefunctions.='function changeTitle(val) {}';
                    272: 		} else {
                    273: 		    $catalogmodefunctions.=<<END;
                    274: function changeTitle(val) {
                    275:     if (window.opener.document) {
                    276: 	    window.opener.document.forms["$form"].elements["$titleelement"].value=val;
                    277:     } else {
                    278: 	    alert("The title of the file you selected is: "+val);
                    279:     }
                    280: }
                    281: END
                    282:                 }
1.39      matthew   283:             } elsif ($mode eq 'parmset') {
1.40      matthew   284:                 my $location = "/adm/groupsort?catalogmode=interactive&";
                    285:                 $location .= "form=$form&element=$element&mode=parmset&acts=";
1.39      matthew   286: 		$catalogmodefunctions=<<END;
                    287: // mode = $mode
                    288: function select_data(title,url) {
                    289:     changeURL(url);
                    290:     self.close();
                    291: }
                    292: 
                    293: function select_group() {
1.40      matthew   294:     window.location="$location"+document.forms.fileattr.acts.value;
1.39      matthew   295: }
                    296: 
                    297: function changeURL(val) {
                    298:     if (window.opener.document) {
                    299:         var elementname  = "$element"+"_value";
                    300:         var checkboxname = "$element"+"_setparmval";
                    301: 	window.opener.document.forms["$form"].elements[elementname].value=val;
                    302:         window.opener.document.forms["$form"].elements[checkboxname].checked=true;
                    303:     } else {
                    304: 	    alert("The file you selected is: "+val);
                    305:     }
                    306: }
                    307: 
                    308: END
                    309:             }
1.15      harris41  310:         }
1.38      matthew   311:         $catalogmodefunctions.=<<END;
                    312: var acts='';
                    313: function rep_dirpath(suffix,val) {
                    314:     eval("document.forms.dirpath"+suffix+".acts.value=val");
                    315: }
                    316: END
1.16      harris41  317: 	if ($ENV{'form.catalogmode'} eq 'groupimport') {
1.38      matthew   318:             $catalogmodefunctions.=<<END;
1.16      harris41  319: function queue(val) {
                    320:     if (eval("document.forms."+val+".filelink.checked")) {
                    321: 	var l=val.length;
                    322: 	var v=val.substring(4,l);
                    323: 	document.forms.fileattr.acts.value+='1a'+v+'b';
                    324:     }
                    325:     else {
                    326: 	var l=val.length;
                    327: 	var v=val.substring(4,l);
                    328: 	document.forms.fileattr.acts.value+='0a'+v+'b';
                    329:     }
                    330: }
                    331: END
                    332: 	}
1.17      harris41  333: 
1.1       www       334: # ---------------------------------------------------------------- Print Header
1.15      harris41  335: 	$r->print(<<ENDHEADER);
1.1       www       336: <html>
                    337: <head>
1.2       harris41  338: <title>The LearningOnline Network With CAPA Directory Browser</title>
1.3       harris41  339: 
1.19      harris41  340: <script type="text/javascript">
1.7       harris41  341: $catalogmodefunctions
1.69      www       342: function openWindow(url, wdwName, w, h, toolbar,scrollbar,locationbar) {
1.71      ng        343:     var xpos = (screen.width-w)/2;
                    344:     xpos = (xpos < 0) ? '0' : xpos;
                    345:     var ypos = (screen.height-h)/2-30;
                    346:     ypos = (ypos < 0) ? '0' : ypos;
                    347:     var options = "width=" + w + ",height=" + h + ",screenx="+xpos+",screeny="+ypos+",";
1.2       harris41  348:     options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
1.69      www       349:     options += "menubar=no,toolbar="+toolbar+",location="+locationbar+",directories=no";
1.2       harris41  350:     var newWin = window.open(url, wdwName, options);
                    351:     newWin.focus();
                    352: }
1.16      harris41  353: function gothere(val) {
                    354:     window.location=val+'?acts='+document.forms.fileattr.acts.value;
                    355: }
1.14      harris41  356: </script>
1.3       harris41  357: 
1.1       www       358: </head>
                    359: ENDHEADER
1.74      www       360: my ($headerdom)=($uri=~/^\/res\/(\w+)\//);
                    361: $r->print(&Apache::loncommon::bodytag('Browse Resources',undef,undef,undef,
                    362: 				      $headerdom));
1.17      harris41  363: # - Evaluate actions from previous page (both cumulatively and chronologically)
1.16      harris41  364:         if ($ENV{'form.catalogmode'} eq 'groupimport') {
                    365: 	    my $acts=$ENV{'form.acts'};
                    366: 	    my @Acts=split(/b/,$acts);
                    367: 	    my %ahash;
                    368: 	    my %achash;
                    369: 	    my $ac=0;
1.17      harris41  370: 	    # some initial hashes for working with data
1.27      harris41  371: 	    foreach (@Acts) {
1.16      harris41  372: 		my ($state,$ref)=split(/a/);
                    373: 		$ahash{$ref}=$state;
                    374: 		$achash{$ref}=$ac;
                    375: 		$ac++;
1.27      harris41  376: 	    }
1.17      harris41  377: 	    # sorting through the actions and changing the tied database hash
1.27      harris41  378: 	    foreach (sort {$achash{$a}<=>$achash{$b}} (keys %ahash)) {
1.16      harris41  379: 		my $key=$_;
                    380: 		if ($ahash{$key} eq '1') {
                    381: 		    $hash{'store_'.$hash{'pre_'.$key.'_link'}}=
                    382: 			$hash{'pre_'.$key.'_title'};
                    383: 		    $hash{'storectr_'.$hash{'pre_'.$key.'_link'}}=
                    384: 			$hash{'storectr'}+0;
                    385: 		    $hash{'storectr'}++;
                    386: 		}
                    387: 		if ($ahash{$key} eq '0') {
                    388: 		    if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
                    389: 			delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
                    390: 		    }
                    391: 		}
1.27      harris41  392: 	    }
1.17      harris41  393: 	    # deleting the previously cached listing
1.27      harris41  394: 	    foreach (keys %hash) {
1.16      harris41  395: 		if ($_ =~ /^pre_/ && $_ =~/link$/) {
                    396: 		    my $key = $_;
                    397: 		    $key =~ s/^pre_//;
                    398: 		    $key =~ s/_[^_]*$//;
                    399: 		    delete $hash{'pre_'.$key.'_title'};
                    400: 		    delete $hash{'pre_'.$key.'_link'};
                    401: 		}
1.27      harris41  402: 	    }
1.16      harris41  403: 	}
                    404: 	
1.23      harris41  405: # ---------------------------------- get state of file attributes to be showing
1.45      ng        406: 	if ($ENV{'form.attrs'} ne '') {
1.70      ng        407: 	    for (my $i=0; $i<=9; $i++) {
1.6       harris41  408: 		delete $hash{'display_attrs_'.$i};
                    409: 		if ($ENV{'form.attr'.$i} == 1) {
1.45      ng        410: 		    $attrchk[$i] = 'checked';
1.6       harris41  411: 		    $hash{'display_attrs_'.$i} = 1;
                    412: 		}
                    413: 	    }
                    414: 	} else {
1.70      ng        415: 	    for (my $i=0; $i<=9; $i++) {
1.45      ng        416: 		$attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
1.6       harris41  417: 	    }
                    418: 	}
1.23      harris41  419: # ------------------------------- output state of file attributes to be showing
1.71      ng        420: #                                 All versions has to the last item
                    421: #                                 since it does not take an extra col
1.77      www       422: 	my %lt=&Apache::lonlocal::texthash(
                    423: 					   'ti' => 'Title',
                    424: 					   'si' => 'Size',
                    425: 					   'la' => 'Last access',
                    426: 					   'lm' => 'Last modified',
                    427: 					   'st' => 'Statistics',
                    428: 					   'au' => 'Author',
                    429: 					   'kw' => 'Keywords',
1.78      www       430: 					   'ln' => 'Language',
1.77      www       431: 					   'sr' => 'Show resource',
                    432: 					   'av' => 'All versions',
                    433: 					   'ud' => 'Update Display'
                    434: 					   );
1.81    ! sakharuk  435:         my $Displayfileattributes=&mt('Display file attributes');
1.15      harris41  436: 	$r->print(<<END);
1.17      harris41  437: <form method="post" name="fileattr" action="$uri"
                    438:  enctype="application/x-www-form-urlencoded">
1.81    ! sakharuk  439: <b><font color="#666666">$Displayfileattributes</font></b><br />
1.1       www       440: <table border=0><tr>
1.77      www       441: <td><input type="checkbox" name="attr0" value="1" $attrchk[0] /> $lt{'ti'}</td>
                    442: <td><input type="checkbox" name="attr1" value="1" $attrchk[1] /> $lt{'si'}</td>
                    443: <td><input type="checkbox" name="attr2" value="1" $attrchk[2] /> $lt{'la'}</td>
                    444: <td><input type="checkbox" name="attr3" value="1" $attrchk[3] /> $lt{'lm'}</td>
                    445: <td><input type="checkbox" name="attr8" value="1" $attrchk[8] /> $lt{'st'}</td>
                    446: </tr><tr>
                    447: <td><input type="checkbox" name="attr4" value="1" $attrchk[4] /> $lt{'au'}</td>
                    448: <td><input type="checkbox" name="attr5" value="1" $attrchk[5] /> $lt{'kw'}</td>
1.78      www       449: <td><input type="checkbox" name="attr6" value="1" $attrchk[6] /> $lt{'ln'}</td>
1.77      www       450: <td><input type="checkbox" name="attr7" value="1" $attrchk[7] /> $lt{'sr'}</td>
                    451: <td><input type="checkbox" name="attr9" value="1" $attrchk[9] /> $lt{'av'}</td>
1.63      ng        452: <td>&nbsp;</td>
1.1       www       453: </tr></table>
1.16      harris41  454: <input type="hidden" name="dirPointer" value="on" />
                    455: <input type="hidden" name="acts" value="" />
1.77      www       456: <input type="submit" name="attrs" value="$lt{'ud'}" />
1.7       harris41  457: $closebutton
                    458: $groupimportbutton
1.1       www       459: </form>
                    460: END
                    461: 
1.23      harris41  462: # ----------------- output starting row to the indexed file/directory hierarchy
1.15      harris41  463:         my $titleclr="#ddffff";
1.40      matthew   464: #        $r->print(&initdebug());
                    465: #        $r->print(&writedebug("Omit:@Omit")) if (@Omit);
                    466: #        $r->print(&writedebug("Only:@Only")) if (@Only);
1.46      ng        467:         $r->print("<table width='100\%' border=0><tr><td bgcolor=#777777>\n");
1.45      ng        468: 	$r->print("<table width='100\%' border=0><tr bgcolor=$titleclr>\n");
1.77      www       469: 	$r->print("<td $colspan><b>".&mt('Name')."</b></td>\n");
                    470: 	$r->print("<td><b>".&mt('Title')."</b></td>\n") 
1.45      ng        471: 	    if ($hash{'display_attrs_0'} == 1);
1.77      www       472: 	$r->print("<td align=right><b>".&mt("Size")." (".&mt("bytes").") ".
1.45      ng        473: 		  "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
1.77      www       474: 	$r->print("<td><b>".&mt("Last accessed")."</b></td>\n") 
1.17      harris41  475: 	    if ($hash{'display_attrs_2'} == 1);
1.77      www       476: 	$r->print("<td><b>".&mt("Last modified")."</b></td>\n")
1.17      harris41  477: 	    if ($hash{'display_attrs_3'} == 1);
1.77      www       478: 	$r->print("<td><b>".&mt("Author(s)")."</b></td>\n")
1.17      harris41  479: 	    if ($hash{'display_attrs_4'} == 1);
1.77      www       480: 	$r->print("<td><b>".&mt("Keywords")."</b></td>\n")
1.17      harris41  481: 	    if ($hash{'display_attrs_5'} == 1);
1.77      www       482: 	$r->print("<td><b>".&mt("Language")."</b></td>\n")
1.45      ng        483: 	    if ($hash{'display_attrs_6'} == 1);
1.77      www       484: 	$r->print("<td><b>".&mt("Resource")."</b></td>\n")
1.63      ng        485: 	    if ($hash{'display_attrs_7'} == 1);
1.77      www       486: 	$r->print("<td><b>".&mt("Usage Statistics")." <br />(".
                    487: 		  &mt("Courses/Network Hits").")</b></td>\n")
1.70      ng        488: 	    if ($hash{'display_attrs_8'} == 1);
1.45      ng        489: 	$r->print('</tr>');
1.5       harris41  490: 
1.23      harris41  491: # ----------------- read in what directories have previously been set to "open"
1.27      harris41  492: 	foreach (keys %hash) {
1.4       harris41  493: 	    if ($_ =~ /^diropen_status_/) {
                    494: 		my $key = $_;
                    495: 		$key =~ s/^diropen_status_//;
                    496: 		$dirs{$key} = $hash{$_};
                    497: 	    }
1.27      harris41  498: 	}
1.4       harris41  499: 
1.2       harris41  500: 	if ($ENV{'form.openuri'}) {  # take care of review and refresh options
                    501: 	    my $uri=$ENV{'form.openuri'};
1.4       harris41  502: 	    if (exists($hash{'diropen_status_'.$uri})) {
                    503: 		my $cursta = $hash{'diropen_status_'.$uri};
1.2       harris41  504: 		$dirs{$uri} = 'open';
1.4       harris41  505: 		$hash{'diropen_status_'.$uri} = 'open';
                    506: 		if ($cursta eq 'open') {
                    507: 		    $dirs{$uri} = 'closed';
                    508: 		    $hash{'diropen_status_'.$uri} = 'closed';
                    509: 		}
1.2       harris41  510: 	    } else {
1.4       harris41  511: 		$hash{'diropen_status_'.$uri} = 'open';
1.2       harris41  512: 		$dirs{$uri} = 'open';
                    513: 	    }
                    514: 	}
1.12      ng        515: 	
                    516: 	my $bredir = $ENV{'form.dirPointer'};
                    517: 	my $toplevel;
1.13      ng        518: 	my $indent = 0;
1.12      ng        519: 	$uri = $uri.'/' if $uri !~ /.*\/$/;
1.17      harris41  520: 
1.45      ng        521: 	if ($bredir ne 'on') {
1.12      ng        522: 	    $hash{'top.level'} = $uri;
                    523: 	    $toplevel = $uri;
1.13      ng        524: 
                    525: 	} else {
                    526: 	    $toplevel = $hash{'top.level'};
                    527: 	}
1.17      harris41  528: 
1.23      harris41  529: # -------------------------------- if not at top level, provide an uplink arrow
1.45      ng        530: 	if ($toplevel ne '/res/'){
1.13      ng        531: 	    my (@uri_com) = split(/\//,$uri);
                    532: 	    pop @uri_com;
                    533: 	    my $upone = join('/',@uri_com);
                    534: 	    my @list = qw (0);
                    535: 	    &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
                    536: 	    $indent = 1;
1.12      ng        537: 	}
1.17      harris41  538: 
1.23      harris41  539: # -------- recursively go through all the directories and output as appropriate
1.16      harris41  540: 	&scanDir ($r,$toplevel,$indent,\%hash);
1.12      ng        541: 	
1.23      harris41  542: # ---------------------------- embed hidden information useful for group import
1.8       harris41  543: 	$r->print("<form name='fnum'>");
                    544: 	$r->print("<input type='hidden' name='fnum' value='$fnum'></form>");
1.17      harris41  545: 
1.23      harris41  546: # -------------------------------------------------------------- end the tables
1.45      ng        547: 	$r->print('</table>');
                    548: 	$r->print('</td></tr></table>');
1.17      harris41  549: 
1.23      harris41  550: # --------------------------------------------------- end the output and return
1.45      ng        551: 	$r->print('</body></html>'."\n");
1.68      albertel  552: #    } else {
                    553: #	$r->print('<html><head></head><body>Unable to tie hash to db '.
                    554: #		  'file</body></html>');
                    555: #	return OK;
1.2       harris41  556:     }
1.67      matthew   557:     if(! $c->aborted()) {
1.68      albertel  558: 	my %dbfile;
1.67      matthew   559:         if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
                    560:             while (my($key,$value) = each(%hash)) {
                    561:                 $dbfile{$key}=$value;
                    562:             }
                    563:             untie(%dbfile);
                    564:         }
                    565:     }
                    566: 
1.1       www       567:     return OK;
                    568: }
1.2       harris41  569: 
1.17      harris41  570: # ----------------------------------------------- recursive scan of a directory
1.2       harris41  571: sub scanDir {
1.16      harris41  572:     my ($r,$startdir,$indent,$hashref)=@_;
1.67      matthew   573:     my $c = $r->connection();
1.3       harris41  574:     my ($compuri,$curdir);
                    575:     my $dirptr=16384;
1.1       www       576:     $indent++;
                    577: 
1.2       harris41  578:     my %dupdirs = %dirs;
                    579:     my @list=&get_list($r,$startdir);
                    580:     foreach my $line (@list) {
1.67      matthew   581:         return if ($c->aborted());
1.53      albertel  582: 	my ($strip,$dom,undef,$testdir,undef)=split(/\&/,$line,5); 
1.4       harris41  583: 	next if $strip =~ /.*\.meta$/;
1.18      ng        584: 	my (@fileparts) = split(/\./,$strip);
1.70      ng        585: 	if ($hash{'display_attrs_9'} != 1) {
1.18      ng        586: 	    if (scalar(@fileparts) >= 3) {
                    587: 		my $fext = pop @fileparts;
                    588: 		my $ov = pop @fileparts;
                    589: 		my $fname = join ('.',@fileparts,$fext);
1.75      albertel  590: 		next if (grep /\Q$fname\E/,@list and $ov =~ /^\d+$/);
1.18      ng        591: 	    }
                    592: 	}
                    593: 
1.45      ng        594: 	if ($dom eq 'domain') {
1.72      albertel  595: 	    # dom list has full path /res/<domain name>/ already
                    596: 	    $curdir='';
1.73      albertel  597: 	    $compuri = (split(/\&/,$line))[0];
1.2       harris41  598: 	} else {
1.17      harris41  599: 	    # user, dir & file have name only, i.e., w/o path
1.45      ng        600: 	    $compuri = join('',$startdir,$strip,'/');
1.3       harris41  601: 	    $curdir = $startdir;
1.2       harris41  602: 	}
1.45      ng        603: 	my $diropen = 'closed';
1.5       harris41  604: 	if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/)) {
1.3       harris41  605: 	    while (my ($key,$val)= each %dupdirs) {
1.5       harris41  606: 		if ($key eq $compuri and $val eq "open") {
1.11      ng        607: 		    $diropen = "opened";
1.53      albertel  608: 		    delete($dupdirs{$key});
                    609: 		    delete($dirs{$key});
1.5       harris41  610: 		}
1.3       harris41  611: 	    }
1.1       www       612: 	}
1.16      harris41  613: 	&display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
1.45      ng        614: 	&scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
1.1       www       615:     }
                    616:     $indent--;
                    617: }
                    618: 
1.17      harris41  619: # --------------- get complete matched list based on the uri (returns an array)
1.1       www       620: sub get_list {
                    621:     my ($r,$uri)=@_;
                    622:     my @list;
1.45      ng        623:     (my $luri = $uri) =~ s/\//_/g;
1.2       harris41  624: 
1.77      www       625:     if ($ENV{'form.attrs'} eq &mt('Update Display')) {
1.27      harris41  626: 	foreach (keys %hash) {
1.4       harris41  627: 	    delete $hash{$_} if ($_ =~ /^dirlist_files_/);
1.27      harris41  628: 	    }
1.2       harris41  629:     }
                    630: 
1.4       harris41  631:     if ($hash{'dirlist_files'.$luri}) {
                    632: 	@list = split(/\n/,$hash{'dirlist_files_'.$luri});
1.1       www       633:     } else {
1.4       harris41  634: 	@list = &Apache::lonnet::dirlist($uri);
                    635: 	$hash{'dirlist_files_'.$luri} = join('\n',@list);
1.1       www       636:     }
                    637:     return @list=&match_ext($r,@list);
                    638: }
                    639: 
1.40      matthew   640: sub initdebug {
                    641:     return <<ENDJS;
                    642: <script>
                    643: var debugging = true;
                    644: if (debugging) {
                    645:     var debuggingWindow = window.open('','Debug','width=400,height=300',true);
                    646: } 
                    647: 
                    648: function output(text) {
                    649:     if (debugging) {
                    650:         debuggingWindow.document.writeln(text);
                    651:     }
                    652: }
                    653: output("<html><head><title>Debugging Window</title></head><body><pre>");   
                    654: </script>
                    655: ENDJS
                    656: }
                    657: 
                    658: sub writedebug {
                    659:     my $text = shift;
                    660:     return "<script>output('$text');</script>";
                    661: }
                    662: 
1.17      harris41  663: # -------------------- filters out files based on extensions (returns an array)
1.1       www       664: sub match_ext {
                    665:     my ($r,@packlist)=@_;
                    666:     my @trimlist;
                    667:     my $nextline;
                    668:     my @fileext;
                    669:     my $dirptr=16384;
                    670: 
1.2       harris41  671:     foreach my $line (@packlist) {
                    672: 	chomp $line;
                    673: 	$line =~ s/^\/home\/httpd\/html//;
                    674: 	my @unpackline = split (/\&/,$line);
1.45      ng        675: 	next if ($unpackline[0] eq '.');
                    676: 	next if ($unpackline[0] eq '..');
1.2       harris41  677: 	my @filecom = split (/\./,$unpackline[0]);
                    678: 	my $fext = pop(@filecom);
                    679: 	my $fnptr = $unpackline[3]&$dirptr;
                    680:  	if ($fnptr == 0 and $unpackline[3] ne "") {
1.28      harris41  681: 	    my $embstyle = &Apache::loncommon::fileembstyle($fext);
1.25      matthew   682:             push @trimlist,$line if (defined($embstyle) && 
1.32      harris41  683: 				     ($embstyle ne 'hdn' or $fext eq 'meta'));
1.1       www       684: 	} else {
1.2       harris41  685: 	    push @trimlist,$line;
1.1       www       686: 	}
                    687:     }
1.80      albertel  688:     @trimlist = sort {uc($a) cmp uc($b)} (@trimlist);
1.1       www       689:     return @trimlist;
                    690: }
                    691: 
1.17      harris41  692: # ------------------------------- displays one line in appropriate table format
1.23      harris41  693: sub display_line {
1.16      harris41  694:     my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
1.53      albertel  695:     my (@pathfn, $fndir);
1.1       www       696:     my $dirptr=16384;
                    697:     my $fileclr="#ffffe6";
1.45      ng        698:     my $iconpath= $r->dir_config('lonIconsURL') . '/';
1.1       www       699: 
                    700:     my @filecom = split (/\&/,$line);
                    701:     my @pathcom = split (/\//,$filecom[0]);
                    702:     my $listname = $pathcom[scalar(@pathcom)-1];
                    703:     my $fnptr = $filecom[3]&$dirptr;
1.77      www       704:     my $msg = &mt('View').' '.$filecom[0].' '.&mt('resources');
                    705:     $msg = &mt('Close').' '.$filecom[0].' '.&mt('directory') if $diropen eq 'opened';
1.1       www       706: 
1.45      ng        707:     my $tabtag='</td>';
1.1       www       708:     my $i=0;
                    709: 
1.70      ng        710:     while ($i<=8) {
1.45      ng        711: 	$tabtag=join('',$tabtag,"<td>&nbsp;</td>")
1.17      harris41  712: 	    if $hash{'display_attrs_'.$i} == 1;
1.1       www       713: 	$i++;
                    714:     }
1.63      ng        715: 	
                    716:     my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
1.17      harris41  717: 
                    718: # display uplink arrow
1.45      ng        719:     if ($filecom[1] eq 'viewOneUp') {
1.70      ng        720: 	$r->print("<tr valign='$valign' bgcolor=$fileclr>$extrafield");
                    721: 	$r->print("<td>\n");
1.16      harris41  722: 	$r->print ('<form method="post" name="dirpathUP" action="'.$startdir.
                    723: 		   '/" '.
1.17      harris41  724: 		   'onSubmit="return rep_dirpath(\'UP\','.
                    725: 		   'document.forms.fileattr.acts.value)" '.
1.16      harris41  726: 		   'enctype="application/x-www-form-urlencoded"'.
                    727:                    '>'."\n");
1.17      harris41  728: 	$r->print ('<input type=hidden name=openuri value="'.
                    729: 		   $startdir.'">'."\n");
1.16      harris41  730: 	$r->print ('<input type="hidden" name="acts" value="">'."\n");
1.13      ng        731: 	$r->print ('<input src="'.$iconpath.'arrow_up.gif"');
1.17      harris41  732: 	$r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
                    733: 		   "\n");
1.77      www       734: 	$r->print(&mt("Up")." $tabtag</tr></form>\n");
1.13      ng        735: 	return OK;
                    736:     }
1.64      www       737: # Do we have permission to look at this?
                    738: 
                    739:     return OK if (!&Apache::lonnet::allowed('bre',$startdir.$filecom[0]));
1.17      harris41  740: 
                    741: # display domain
1.45      ng        742:     if ($filecom[1] eq 'domain') {
1.17      harris41  743: 	$r->print ('<input type="hidden" name="dirPointer" value="on">'."\n")
                    744: 	    if ($ENV{'form.dirPointer'} eq "on");
1.70      ng        745: 	$r->print("<tr valign='$valign' bgcolor=$fileclr>$extrafield");
                    746: 	$r->print("<td>");
1.73      albertel  747: 	&begin_form ($r,$filecom[0]);
                    748: 	my $anchor = $filecom[0];
1.3       harris41  749: 	$anchor =~ s/\///g;
1.13      ng        750: 	$r->print ('<a name="'.$anchor.'">');
1.16      harris41  751: 	$r->print ('<input type="hidden" name="acts" value="">');
1.17      harris41  752: 	$r->print ('<input src="'.$iconpath.'folder_pointer_'.
                    753: 		   $diropen.'.gif"'); 
                    754: 	$r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
                    755: 		   "\n");
                    756: 	$r->print ('<a href="javascript:gothere(\''.$filecom[0].
1.73      albertel  757: 		   '\')"><img src="'.$iconpath.'server.gif"');
1.17      harris41  758: 	$r->print (' border="0" /></a>'."\n");
1.77      www       759: 	$r->print (&mt("Domain")." - $listname ");
1.60      albertel  760: 	if ($Apache::lonnet::domaindescription{$listname}) {
                    761: 	    $r->print("(".$Apache::lonnet::domaindescription{$listname}.
                    762: 		      ")");
                    763: 	}
                    764: 	$r->print (" $tabtag</tr></form>\n");
1.1       www       765: 	return OK;
1.17      harris41  766: 
                    767: # display user directory
1.1       www       768:     }
1.45      ng        769:     if ($filecom[1] eq 'user') {
1.70      ng        770: 	$r->print("<tr valign=$valign bgcolor=$fileclr>$extrafield");
                    771: 	$r->print("<td nowrap>\n");
1.2       harris41  772: 	my $curdir = $startdir.$filecom[0].'/';
1.3       harris41  773: 	my $anchor = $curdir;
                    774: 	$anchor =~ s/\///g;
1.13      ng        775: 	&begin_form ($r,$curdir);
1.17      harris41  776: 	$r->print ('<a name="'.$anchor.'"><img src="'.$iconpath.
                    777: 		   'whitespace1.gif" border="0" />'."\n");
1.16      harris41  778: 	$r->print ('<input type="hidden" name="acts" value="">');
1.17      harris41  779: 	$r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
                    780: 		   '.gif"'); 
                    781: 	$r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
                    782: 		   "\n");
                    783: 	$r->print ('<a href="javascript:gothere(\''.$curdir.'\')"><img src='.
                    784: 		   $iconpath.'quill.gif border="0" name="'.$msg.
                    785: 		   '" height="22" /></a>');
1.60      albertel  786: 	my $domain=(split(m|/|,$startdir))[2];
                    787: 	my $plainname=&Apache::loncommon::plainname($listname,$domain);
                    788: 	$r->print ($listname);
                    789: 	if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
                    790: 	$r->print ($tabtag.'</tr></form>'."\n");
1.1       www       791: 	return OK;
                    792:     }
1.17      harris41  793: 
1.1       www       794: # display file
1.45      ng        795:     if ($fnptr == 0 and $filecom[3] ne '') {
1.47      ng        796: 	my $filelink = $startdir.$filecom[0];
1.77      www       797: 	next if &Apache::lonnet::metadata($filelink,'obsolete');
1.1       www       798: 	my @file_ext = split (/\./,$listname);
1.25      matthew   799: 	my $curfext = $file_ext[-1];
1.40      matthew   800:         if (@Omit) {
                    801:             foreach (@Omit) { return OK if ($curfext eq $_); }
                    802:         }
                    803:         if (@Only) {
                    804:             my $skip = 1;
                    805:             foreach (@Only) { $skip = 0 if ($curfext eq $_); }
                    806:             return OK if ($skip > 0);
                    807:         }
1.25      matthew   808: 	# Set the icon for the file
1.26      matthew   809: 	my $iconname = "unknown.gif";
1.28      harris41  810: 	my $embstyle = &Apache::loncommon::fileembstyle($curfext);
1.25      matthew   811: 	# The unless conditional that follows is a bit of overkill
                    812: 	$iconname = $curfext.".gif" unless
1.26      matthew   813: 	    (!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn');
1.25      matthew   814: 	#
1.70      ng        815: 	$r->print("<tr valign='$valign' bgcolor=$fileclr><td nowrap>");
1.62      albertel  816: 	my $metafile = grep /^\Q$filecom[0]\E\.meta\&/, @list;
1.7       harris41  817: 	my $title;
                    818:         if ($ENV{'form.catalogmode'} eq 'interactive') {
                    819: 	    $title=$listname;
1.8       harris41  820: 	    $title = &Apache::lonnet::metadata($filelink,'title')
                    821: 		if ($metafile == 1);
1.7       harris41  822: 	    $title=$listname unless $title;
1.42      albertel  823: 	    my $titleesc=HTML::Entities::encode($title);
                    824: 	    $titleesc=~s/\'/\\'/; #' (clean up this spare quote)
1.35      matthew   825:             $r->print("<a href=\"javascript:select_data(\'",
1.34      harris41  826:                       $titleesc,"','",$filelink,"')\">");
1.17      harris41  827: 	    $r->print("<img src='",$iconpath,"select.gif' border='0' /></a>".
                    828: 		      "\n");
1.70      ng        829: 	    $r->print("</td><td nowrap>");
1.8       harris41  830: 	}
                    831:         elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
                    832: 	    $title=$listname;
                    833: 	    $title = &Apache::lonnet::metadata($filelink,'title')
                    834: 		if ($metafile == 1);
                    835: 	    $title=$listname unless $title;
1.42      albertel  836: 	    my $titleesc=&HTML::Entities::encode($title);
1.8       harris41  837: 	    $r->print("<form name='form$fnum'>\n");
                    838: 	    $r->print("<input type='checkbox' name='filelink"."' ".
1.16      harris41  839: 		      "value='$filelink' onClick='".
                    840: 		      "javascript:queue(\"form$fnum\")' ");
                    841: 	    if ($hash{'store_'.$filelink}) {
                    842: 		$r->print("checked");
                    843: 	    }
                    844: 	    $r->print(">\n");
1.8       harris41  845: 	    $r->print("<input type='hidden' name='title"."' ".
1.42      albertel  846: 		      "value='$titleesc'>\n");
1.8       harris41  847: 	    $r->print("</form>\n");
1.70      ng        848: 	    $r->print("</td><td nowrap>");
1.16      harris41  849: 	    $hash{"pre_${fnum}_link"}=$filelink;
1.42      albertel  850: 	    $hash{"pre_${fnum}_title"}=$titleesc;
1.8       harris41  851:   	    $fnum++;
1.7       harris41  852: 	}
1.4       harris41  853: 
1.12      ng        854: 	if ($indent > 0 and $indent < 11) {
1.17      harris41  855: 	    $r->print("<img src=",$iconpath,"whitespace",$indent,
                    856: 		      ".gif border='0' />\n");
1.11      ng        857: 	} elsif ($indent >0) {
1.4       harris41  858: 	    my $ten = int($indent/10.);
                    859: 	    my $rem = $indent%10.0;
                    860: 	    my $count = 0;
                    861: 	    while ($count < $ten) {
1.17      harris41  862: 		$r->print("<img src=",$iconpath,
                    863: 			  "whitespace10.gif border='0' />\n");
1.1       www       864: 	    $count++;
1.4       harris41  865: 	    }
1.17      harris41  866: 	    $r->print("<img src=",$iconpath,"whitespace",$rem,
                    867: 		      ".gif border='0' />\n") if $rem > 0;
1.1       www       868: 	}
1.4       harris41  869: 
1.25      matthew   870: 	$r->print("<img src=$iconpath$iconname border='0' />\n");
1.17      harris41  871: 	$r->print (" <a href=\"javascript:openWindow('".$filelink.
1.69      www       872: 		   "', 'previewfile', '450', '500', 'no', 'yes','yes')\";".
1.17      harris41  873: 		   " TARGET=_self>$listname</a> ");
                    874: 
                    875: 	$r->print (" (<a href=\"javascript:openWindow('".$filelink.
1.71      ng        876: 		   ".meta', 'metadatafile', '500', '550', 'no', 'yes','no')\"; ".
1.17      harris41  877: 		   "TARGET=_self>metadata</a>) ") if ($metafile == 1);
1.2       harris41  878: 
1.7       harris41  879: 	$r->print("</td>\n");
1.45      ng        880: 	if ($hash{'display_attrs_0'} == 1) {
1.70      ng        881: 	    my $title = &Apache::lonnet::gettitle($filelink,'title')
1.45      ng        882: 		if ($metafile == 1);
1.70      ng        883: 	    $r->print('<td> '.($title eq '' ? '&nbsp;' : $title).
1.45      ng        884: 		      ' </td>'."\n");
                    885: 	}
1.70      ng        886: 	$r->print('<td align=right> ',
1.17      harris41  887: 		  $filecom[8]," </td>\n") 
1.45      ng        888: 	    if $hash{'display_attrs_1'} == 1;
1.70      ng        889: 	$r->print('<td> '.
1.17      harris41  890: 		  (localtime($filecom[9]))." </td>\n") 
1.45      ng        891: 	    if $hash{'display_attrs_2'} == 1;
1.70      ng        892: 	$r->print('<td> '.
1.17      harris41  893: 		  (localtime($filecom[10]))." </td>\n") 
1.45      ng        894: 	    if $hash{'display_attrs_3'} == 1;
1.2       harris41  895: 
1.45      ng        896: 	if ($hash{'display_attrs_4'} == 1) {
1.17      harris41  897: 	    my $author = &Apache::lonnet::metadata($filelink,'author')
                    898: 		if ($metafile == 1);
1.70      ng        899: 	    $r->print('<td> '.($author eq '' ? '&nbsp;' : $author).
1.17      harris41  900: 		      " </td>\n");
1.2       harris41  901: 	}
1.45      ng        902: 	if ($hash{'display_attrs_5'} == 1) {
1.17      harris41  903: 	    my $keywords = &Apache::lonnet::metadata($filelink,'keywords')
                    904: 		if ($metafile == 1);
1.45      ng        905: 	    # $keywords = '&nbsp;' if (!$keywords);
1.70      ng        906: 	    $r->print('<td> '.($keywords eq '' ? '&nbsp;' : $keywords).
1.17      harris41  907: 		      " </td>\n");
1.2       harris41  908: 	}
1.45      ng        909: 	if ($hash{'display_attrs_6'} == 1) {
1.17      harris41  910: 	    my $lang = &Apache::lonnet::metadata($filelink,'language')
                    911: 		if ($metafile == 1);
1.28      harris41  912: 	    $lang = &Apache::loncommon::languagedescription($lang);
1.70      ng        913: 	    $r->print('<td> '.($lang eq '' ? '&nbsp;' : $lang).
1.17      harris41  914: 		      " </td>\n");
1.2       harris41  915: 	}
1.63      ng        916:         if ($hash{'display_attrs_7'} == 1) {
1.56      www       917:             my $output='';
1.57      www       918:             my $embstyle=&Apache::loncommon::fileembstyle($curfext);
                    919: 	    if ($embstyle eq 'ssi') {
1.61      www       920: 	       $output=&Apache::lonnet::ssi_body($filelink);
1.56      www       921:                $output='<font size="-2">'.$output.'</font>';
1.57      www       922: 	   } elsif ($embstyle eq 'img') {
                    923:                $output='<img src="'.$filelink.'" />';
1.58      www       924:            } elsif ($filelink=~/^\/res\/(\w+)\/(\w+)\//) {
                    925:                $output='<img src="http://'.
                    926: 		 $Apache::lonnet::hostname{&Apache::lonnet::homeserver($2,$1)}.
                    927:                  '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1.57      www       928:            }
1.70      ng        929: 	   $r->print('<td> '.($output eq '' ? '&nbsp;':$output).
1.56      www       930: 		      " </td>\n");
                    931:         }
1.70      ng        932: 	if ($hash{'display_attrs_8'} == 1) {
                    933: 	    my (%stat) = &Apache::lonmeta::dynamicmeta($filelink) if ($metafile == 1);
1.71      ng        934: 	    my $stat = (exists($stat{'course'}) ? $stat{'course'} : '').
                    935: 		((exists($stat{'course'}) || exists($stat{'count'})) ? '/' : '').
                    936: 		(exists($stat{'count'}) ? $stat{'count'} : '');
1.70      ng        937: 	    $r->print('<td align=center> '.($stat eq '' ? '&nbsp;' : $stat).
                    938: 		      ' </td>'."\n");
                    939: 	}
                    940: 
1.1       www       941: 	$r->print("</tr>\n");
                    942:     }
1.17      harris41  943: 
1.2       harris41  944: # -- display directory
1.1       www       945:     if ($fnptr == $dirptr) {
                    946: 	my @file_ext = split (/\./,$listname);
                    947: 	my $curfext = $file_ext[scalar(@file_ext)-1];
1.2       harris41  948: 	my $curdir = $startdir.$filecom[0].'/';
1.3       harris41  949: 	my $anchor = $curdir;
                    950: 	$anchor =~ s/\///g;
1.63      ng        951: 	$r->print("<tr bgcolor=$fileclr>$extrafield<td valign=$valign>");
1.2       harris41  952: 	&begin_form ($r,$curdir);
1.4       harris41  953: 	my $indentm1 = $indent-1;
1.11      ng        954: 	if ($indentm1 < 11 and $indentm1 > 0) {
1.17      harris41  955: 	    $r->print("<img src=",$iconpath,"whitespace",$indentm1,
                    956: 		      ".gif border='0' />\n");
1.4       harris41  957: 	} else {
                    958: 	    my $ten = int($indentm1/10.);
                    959: 	    my $rem = $indentm1%10.0;
                    960: 	    my $count = 0;
                    961: 	    while ($count < $ten) {
1.17      harris41  962: 		$r->print ("<img src=",$iconpath
                    963: 			   ,"whitespace10.gif border='0' />\n");
1.12      ng        964: 		$count++;
1.4       harris41  965: 	    }
1.17      harris41  966: 	    $r->print ("<img src=",$iconpath,"whitespace",$rem,
                    967: 		       ".gif border='0' />\n") if $rem > 0;
1.1       www       968: 	}
1.16      harris41  969: 	$r->print ('<input type="hidden" name="acts" value="">');
1.17      harris41  970: 	$r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
                    971: 		   'folder_pointer_'.$diropen.'.gif"');
                    972: 	$r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
                    973: 		   "\n");
                    974: 	$r->print ('<a href="javascript:gothere(\''.$curdir.'\')"><img src="'.
                    975: 		   $iconpath.'folder_'.$diropen.'.gif" border="0" /></a>'.
                    976: 		   "\n");
1.13      ng        977: 	$r->print ("$listname$tabtag</tr></form>\n");
1.1       www       978:     }
1.2       harris41  979: 
1.1       www       980: }
                    981: 
1.14      harris41  982: # ------------------- prints the beginning of a form for directory or file link
1.1       www       983: sub begin_form {
                    984:     my ($r,$uri) = @_;
1.3       harris41  985:     my $anchor = $uri;
                    986:     $anchor =~ s/\///g;
1.17      harris41  987:     $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
                    988: 	       '#'.$anchor.
                    989: 	       '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
                    990: 	       ',document.forms.fileattr.acts.value)" '.
1.16      harris41  991: 	       'enctype="application/x-www-form-urlencoded">'."\n");
1.17      harris41  992:     $r->print ('<input type="hidden" name="openuri" value="'.$uri.'">'.
                    993: 	       "\n");
                    994:     $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n");
1.16      harris41  995:     $dnum++;
1.17      harris41  996: }
                    997: 
                    998: # --------- settings whenever the user causes the indexer window to be launched
                    999: sub start_fresh_session {
1.48      matthew  1000:     delete $hash{'form.catalogmode'};
                   1001:     delete $hash{'form.mode'};
                   1002:     delete $hash{'form.form'};
                   1003:     delete $hash{'form.element'};
                   1004:     delete $hash{'form.omit'};
                   1005:     delete $hash{'form.only'};
1.27      harris41 1006:     foreach (keys %hash) {
1.48      matthew  1007:         delete $hash{$_} if (/^(pre_|store)/);
1.27      harris41 1008:     }
1.1       www      1009: }
                   1010: 
1.35      matthew  1011: # ------------------------------------------------------------------- setvalues
                   1012: sub setvalues {
                   1013:     # setvalues is used in registerurl to synchronize the database
                   1014:     # hash and environment hashes
                   1015:     my ($H1,$h1key,$H2,$h2key) =@_;
                   1016:     #
                   1017:     if (exists $H2->{$h2key}) {
                   1018: 	$H1->{$h1key} = $H2->{$h2key};
                   1019:     } elsif (exists $H1->{$h1key}) {
                   1020: 	$H2->{$h2key} = $H1->{$h1key};
                   1021:     } 
                   1022: }
                   1023: 
1.1       www      1024: 1;
1.54      www      1025: 
                   1026: sub cleanup {
1.55      www      1027:     if (tied(%hash)){
                   1028: 	&Apache::lonnet::logthis('Cleanup indexer: hash');
                   1029:     }
1.54      www      1030: }
1.23      harris41 1031: 
                   1032: =head1 NAME
                   1033: 
                   1034: Apache::lonindexer - mod_perl module for cross server filesystem browsing
                   1035: 
                   1036: =head1 SYNOPSIS
                   1037: 
                   1038: Invoked by /etc/httpd/conf/srm.conf:
                   1039: 
                   1040:  <LocationMatch "^/res.*/$">
                   1041:  SetHandler perl-script
                   1042:  PerlHandler Apache::lonindexer
                   1043:  </LocationMatch>
                   1044: 
                   1045: =head1 INTRODUCTION
                   1046: 
                   1047: This module enables a scheme of browsing across a cross server.
                   1048: 
                   1049: This is part of the LearningOnline Network with CAPA project
                   1050: described at http://www.lon-capa.org.
                   1051: 
                   1052: =head1 BEGIN SUBROUTINE
                   1053: 
                   1054: This routine is only run once after compilation.
                   1055: 
                   1056: =over 4
                   1057: 
                   1058: =item *
                   1059: 
                   1060: Initializes %language hash table.
                   1061: 
                   1062: =back
                   1063: 
                   1064: =head1 HANDLER SUBROUTINE
                   1065: 
                   1066: This routine is called by Apache and mod_perl.
                   1067: 
                   1068: =over 4
                   1069: 
                   1070: =item *
                   1071: 
                   1072: read in machine configuration variables
                   1073: 
                   1074: =item *
                   1075: 
                   1076: see if called from an interactive mode
                   1077: 
                   1078: =item *
                   1079: 
                   1080: refresh environment with user database values (in %hash)
                   1081: 
                   1082: =item *
                   1083: 
                   1084: define extra fields and buttons in case of special mode
                   1085: 
                   1086: =item *
                   1087: 
                   1088: set catalogmodefunctions to have extra needed javascript functionality
                   1089: 
                   1090: =item *
                   1091: 
                   1092: print header
                   1093: 
                   1094: =item *
                   1095: 
                   1096: evaluate actions from previous page (both cumulatively and chronologically)
                   1097: 
                   1098: =item *
                   1099: 
                   1100: output title
                   1101: 
                   1102: =item *
                   1103: 
                   1104: get state of file attributes to be showing
                   1105: 
                   1106: =item *
                   1107: 
                   1108: output state of file attributes to be showing
                   1109: 
                   1110: =item *
                   1111: 
                   1112: output starting row to the indexed file/directory hierarchy
                   1113: 
                   1114: =item *
                   1115: 
                   1116: read in what directories have previously been set to "open"
                   1117: 
                   1118: =item *
                   1119: 
                   1120: if not at top level, provide an uplink arrow
                   1121: 
                   1122: =item *
                   1123: 
                   1124: recursively go through all the directories and output as appropriate
                   1125: 
                   1126: =item *
                   1127: 
                   1128: information useful for group import
                   1129: 
                   1130: =item *
                   1131: 
                   1132: end the tables
                   1133: 
                   1134: =item *
                   1135: 
                   1136: end the output and return
                   1137: 
                   1138: =back
                   1139: 
                   1140: =head1 OTHER SUBROUTINES
                   1141: 
                   1142: =over 4
                   1143: 
                   1144: =item *
                   1145: 
                   1146: scanDir - recursive scan of a directory
                   1147: 
                   1148: =item *
                   1149: 
                   1150: get_list - get complete matched list based on the uri (returns an array)
                   1151: 
                   1152: =item *
                   1153: 
                   1154: match_ext - filters out files based on extensions (returns an array)
                   1155: 
                   1156: =item *
                   1157: 
                   1158: display_line - displays one line in appropriate table format
                   1159: 
                   1160: =item *
                   1161: 
                   1162: begin_form - prints the beginning of a form for directory or file link
                   1163: 
                   1164: =item *
                   1165: 
                   1166: start_fresh_session - settings whenever the user causes the indexer window
                   1167: to be launched
                   1168: 
                   1169: =back
                   1170: 
                   1171: =cut

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