Annotation of loncom/interface/lonindexer.pm, revision 1.68

1.1       www         1: # The LearningOnline Network with CAPA
1.24      harris41    2: # Directory Indexer
                      3: #
1.68    ! albertel    4: # $Id: lonindexer.pm,v 1.67 2003/06/16 17:27:33 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: # 6/26,7/8 H. K. Ng
1.18      ng         38: # 8/14 H. K. Ng
1.25      matthew    39: # 11/30 Matthew Hall
1.32      harris41   40: # YEAR=2002
1.45      ng         41: # 6/29/2002 H. K. Ng
1.23      harris41   42: #
                     43: ###
                     44: 
                     45: ###############################################################################
                     46: ##                                                                           ##
                     47: ## ORGANIZATION OF THIS PERL MODULE                                          ##
                     48: ##                                                                           ##
                     49: ## 1. Description of functions                                               ##
                     50: ## 2. Modules used by this module                                            ##
                     51: ## 3. Choices for different output views (detailed, summary, xml, etc)       ##
                     52: ## 4. BEGIN block (to be run once after compilation)                         ##
                     53: ## 5. Handling routine called via Apache and mod_perl                        ##
                     54: ## 6. Other subroutines                                                      ##
                     55: ##                                                                           ##
                     56: ###############################################################################
1.7       harris41   57: 
1.1       www        58: package Apache::lonindexer;
                     59: 
1.23      harris41   60: # ------------------------------------------------- modules used by this module
1.1       www        61: use strict;
                     62: use Apache::lonnet();
1.30      harris41   63: use Apache::loncommon();
1.1       www        64: use Apache::Constants qw(:common);
1.2       harris41   65: use Apache::File;
                     66: use GDBM_File;
                     67: 
1.23      harris41   68: # ---------------------------------------- variables used throughout the module
1.17      harris41   69: my %hash; # tied to a user-specific gdbm file
                     70: my %dirs; # keys are directories, values are the open/close status
                     71: my %language; # has the reference information present in language.tab
                     72: 
                     73: # ----- Values which are set by the handler subroutine and are accessible to
                     74: # -----     other methods.
                     75: my $extrafield; # default extra table cell
                     76: my $fnum; # file counter
                     77: my $dnum; # directory counter
1.1       www        78: 
1.40      matthew    79: # ----- Used to include or exclude files with certain extensions.
1.43      matthew    80: my @Only = ();
1.40      matthew    81: my @Omit = ();
                     82: 
                     83: 
1.23      harris41   84: # ----------------------------- Handling routine called via Apache and mod_perl
1.1       www        85: sub handler {
                     86:     my $r = shift;
1.67      matthew    87:     my $c = $r->connection();
1.1       www        88:     $r->content_type('text/html');
1.50      albertel   89:     &Apache::loncommon::no_cache($r);
1.1       www        90:     $r->send_http_header;
                     91:     return OK if $r->header_only;
1.9       harris41   92:     $fnum=0;
1.16      harris41   93:     $dnum=0;
1.17      harris41   94: 
1.43      matthew    95:     # Deal with stupid global variables (is there a way around making
                     96:     # these global to this package?  It is just so wrong....)
                     97:     undef (@Only);
                     98:     undef (@Omit);
                     99: 
1.23      harris41  100: # ------------------------------------- read in machine configuration variables
1.10      harris41  101:     my $iconpath= $r->dir_config('lonIconsURL') . "/";
1.1       www       102:     my $domain  = $r->dir_config('lonDefDomain');
                    103:     my $role    = $r->dir_config('lonRole');
                    104:     my $loadlim = $r->dir_config('lonLoadLim');
                    105:     my $servadm = $r->dir_config('lonAdmEMail');
                    106:     my $sysadm  = $r->dir_config('lonSysEMail');
                    107:     my $lonhost = $r->dir_config('lonHostID');
                    108:     my $tabdir  = $r->dir_config('lonTabDir');
                    109: 
1.7       harris41  110:     my $fileclr='#ffffe6';
1.15      harris41  111:     my $line;
                    112:     my (@attrchk,@openpath);
                    113:     my $uri=$r->uri;
                    114: 
1.7       harris41  115: # -------------------------------------- see if called from an interactive mode
1.35      matthew   116:     # Get the parameters from the query string
1.36      matthew   117:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.40      matthew   118: 	     ['catalogmode','launch','acts','mode','form','element',
                    119:               'only','omit']);
1.35      matthew   120:     #-------------------------------------------------------------------
1.17      harris41  121:     my $closebutton='';
1.7       harris41  122:     my $groupimportbutton='';
                    123:     my $colspan=''; 
1.14      harris41  124: 
                    125:     $extrafield='';
1.17      harris41  126:     my $diropendb = 
1.66      albertel  127: 	"/home/httpd/perl/tmp/$ENV{'user.domain'}_$ENV{'user.name'}_indexer.db";
1.67      matthew   128:     %hash = ();
1.68    ! albertel  129:     {
        !           130: 	my %dbfile;
        !           131: 	if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_WRCREAT(),0640)) {
        !           132: 	    while(my($key,$value)=each(%dbfile)) {
        !           133: 		$hash{$key}=$value;
        !           134: 	    }
        !           135: 	    untie(%dbfile);
        !           136: 	}
        !           137:     }
        !           138:     {
1.15      harris41  139: 	if ($ENV{'form.launch'} eq '1') {
1.17      harris41  140: 	    &start_fresh_session();
1.43      matthew   141:         }
1.17      harris41  142: # -------------------- refresh environment with user database values (in %hash)
1.48      matthew   143: 	&setvalues(\%hash,'form.catalogmode',\%ENV,'form.catalogmode'   );
1.15      harris41  144: 
1.17      harris41  145: # --------------------- define extra fields and buttons in case of special mode
1.15      harris41  146: 	if ($ENV{'form.catalogmode'} eq 'interactive') {
                    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:             $closebutton=<<END;
1.7       harris41  152: <input type="button" name="close" value='CLOSE' onClick="self.close()">
                    153: END
1.16      harris41  154:         }
1.15      harris41  155: 	elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
                    156: 	    $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
                    157: 		'<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
1.17      harris41  158: 		' border="0" /></td>';
1.15      harris41  159: 	    $colspan=" colspan='2' ";
                    160:             $closebutton=<<END;
1.7       harris41  161: <input type="button" name="close" value='CLOSE' onClick="self.close()">
                    162: END
1.15      harris41  163:             $groupimportbutton=<<END;
1.17      harris41  164: <input type="button" name="groupimport" value='GROUP IMPORT'
                    165: onClick="javascript:select_group()">
1.7       harris41  166: END
1.15      harris41  167:         }
1.35      matthew   168: 	# Additions made by Matthew to make the browser a little easier to deal
                    169: 	# with in the future.
                    170: 	#
                    171: 	# $mode (at this time) indicates if we are in edit mode.
                    172: 	# $form is the name of the form that the URL is placed when the
                    173: 	#       selection is made.
                    174: 	# $element is the name of the element in $formname which receives
                    175: 	#       the URL.
1.37      matthew   176: 	# &Apache::lonxml::debug('Checking mode, form, element');
1.48      matthew   177: 	&setvalues(\%hash,'form.mode'   ,\%ENV,'form.mode'   );
                    178: 	&setvalues(\%hash,'form.form'   ,\%ENV,'form.form'   );
                    179: 	&setvalues(\%hash,'form.element',\%ENV,'form.element');
                    180: 	&setvalues(\%hash,'form.only'   ,\%ENV,'form.only'   );
                    181: 	&setvalues(\%hash,'form.omit'   ,\%ENV,'form.omit'   );
1.35      matthew   182: 
1.40      matthew   183:         # Deal with 'omit' and 'only' 
                    184:         if (exists $ENV{'form.omit'}) {
                    185:             @Omit = split(',',$ENV{'form.omit'});
                    186:         }
                    187:         if (exists $ENV{'form.only'}) {
                    188:             @Only = split(',',$ENV{'form.only'});
                    189:         }
                    190:         
1.35      matthew   191: 	my $mode = $ENV{'form.mode'};
                    192: 	my ($form,$element);
1.39      matthew   193: 	if ($mode eq 'edit' || $mode eq 'parmset') {
1.35      matthew   194: 	    $form    = $ENV{'form.form'};
                    195: 	    $element = $ENV{'form.element'};
                    196: 	}
                    197: 	&Apache::lonxml::debug("mode=$mode form=$form element=$element");
1.17      harris41  198: # ------ set catalogmodefunctions to have extra needed javascript functionality
1.15      harris41  199: 	my $catalogmodefunctions='';
                    200: 	if ($ENV{'form.catalogmode'} eq 'interactive' or
                    201: 	    $ENV{'form.catalogmode'} eq 'groupimport') {
1.35      matthew   202: 	    # The if statement below sets us up to use the old version
                    203: 	    # by default (ie. if $mode is undefined).  This is the easy
                    204: 	    # way out.  Hopefully in the future I'll find a way to get 
                    205: 	    # the calls dealt with in a more comprehensive manner.
1.41      www       206: 
                    207: #
                    208: # There is now also mode "simple", which is for the simple version of the rat
                    209: #
                    210: #
1.39      matthew   211: 	    if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
1.40      matthew   212:                 my $location = "/adm/groupsort?catalogmode=groupimport&";
1.41      www       213:                 $location .= "mode=".$mode."&";
1.40      matthew   214:                 $location .= "acts=";
1.35      matthew   215: 		$catalogmodefunctions=<<"END";
1.7       harris41  216: function select_data(title,url) {
                    217:     changeTitle(title);
                    218:     changeURL(url);
1.8       harris41  219:     self.close();
                    220: }
                    221: function select_group() {
1.40      matthew   222:     window.location="$location"+document.forms.fileattr.acts.value;
1.16      harris41  223: }
1.7       harris41  224: function changeTitle(val) {
1.35      matthew   225:     if (opener.inf) {
                    226:         if (opener.inf.document.forms.resinfo.elements.t) {
                    227:             opener.inf.document.forms.resinfo.elements.t.value=val;
                    228:         }
                    229:     }
                    230: }
                    231: function changeURL(val) {
                    232:     if (opener.inf) {
                    233:         if (opener.inf.document.forms.resinfo.elements.u) {
                    234: 	    opener.inf.document.forms.resinfo.elements.u.value=val;
                    235:         }
1.7       harris41  236:     }
                    237: }
1.35      matthew   238: END
1.39      matthew   239:             } elsif ($mode eq 'edit') { # we are in 'edit' mode
1.40      matthew   240:                 my $location = "/adm/groupsort?catalogmode=interactive&";
                    241:                 $location .= "form=$form&element=$element&mode=edit&acts=";
1.35      matthew   242: 		$catalogmodefunctions=<<END;
                    243: // mode = $mode
                    244: function select_data(title,url) {
                    245:     changeURL(url);
                    246:     self.close();
                    247: }
                    248: 
                    249: function select_group() {
1.40      matthew   250:     window.location="$location"+document.forms.fileattr.acts.value;
1.35      matthew   251: }
                    252: 
1.7       harris41  253: function changeURL(val) {
1.35      matthew   254:     if (window.opener.document) {
                    255: 	window.opener.document.forms["$form"].elements["$element"].value=val;
                    256:     } else {
                    257: 	    alert("The file you selected is: "+val);
1.7       harris41  258:     }
                    259: }
1.35      matthew   260: 
1.7       harris41  261: END
1.39      matthew   262:             } elsif ($mode eq 'parmset') {
1.40      matthew   263:                 my $location = "/adm/groupsort?catalogmode=interactive&";
                    264:                 $location .= "form=$form&element=$element&mode=parmset&acts=";
1.39      matthew   265: 		$catalogmodefunctions=<<END;
                    266: // mode = $mode
                    267: function select_data(title,url) {
                    268:     changeURL(url);
                    269:     self.close();
                    270: }
                    271: 
                    272: function select_group() {
1.40      matthew   273:     window.location="$location"+document.forms.fileattr.acts.value;
1.39      matthew   274: }
                    275: 
                    276: function changeURL(val) {
                    277:     if (window.opener.document) {
                    278:         var elementname  = "$element"+"_value";
                    279:         var checkboxname = "$element"+"_setparmval";
                    280: 	window.opener.document.forms["$form"].elements[elementname].value=val;
                    281:         window.opener.document.forms["$form"].elements[checkboxname].checked=true;
                    282:     } else {
                    283: 	    alert("The file you selected is: "+val);
                    284:     }
                    285: }
                    286: 
                    287: END
                    288:             }
1.15      harris41  289:         }
1.38      matthew   290:         $catalogmodefunctions.=<<END;
                    291: var acts='';
                    292: function rep_dirpath(suffix,val) {
                    293:     eval("document.forms.dirpath"+suffix+".acts.value=val");
                    294: }
                    295: END
1.16      harris41  296: 	if ($ENV{'form.catalogmode'} eq 'groupimport') {
1.38      matthew   297:             $catalogmodefunctions.=<<END;
1.16      harris41  298: function queue(val) {
                    299:     if (eval("document.forms."+val+".filelink.checked")) {
                    300: 	var l=val.length;
                    301: 	var v=val.substring(4,l);
                    302: 	document.forms.fileattr.acts.value+='1a'+v+'b';
                    303:     }
                    304:     else {
                    305: 	var l=val.length;
                    306: 	var v=val.substring(4,l);
                    307: 	document.forms.fileattr.acts.value+='0a'+v+'b';
                    308:     }
                    309: }
                    310: END
                    311: 	}
1.17      harris41  312: 
1.1       www       313: # ---------------------------------------------------------------- Print Header
1.15      harris41  314: 	$r->print(<<ENDHEADER);
1.1       www       315: <html>
                    316: <head>
1.2       harris41  317: <title>The LearningOnline Network With CAPA Directory Browser</title>
1.3       harris41  318: 
1.19      harris41  319: <script type="text/javascript">
1.7       harris41  320: $catalogmodefunctions
1.2       harris41  321: function openWindow(url, wdwName, w, h, toolbar,scrollbar) {
                    322:     var options = "width=" + w + ",height=" + h + ",";
                    323:     options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
                    324:     options += "menubar=no,toolbar="+toolbar+",location=no,directories=no";
                    325:     var newWin = window.open(url, wdwName, options);
                    326:     newWin.focus();
                    327: }
1.16      harris41  328: function gothere(val) {
                    329:     window.location=val+'?acts='+document.forms.fileattr.acts.value;
                    330: }
1.14      harris41  331: </script>
1.3       harris41  332: 
1.1       www       333: </head>
                    334: ENDHEADER
1.52      www       335: $r->print(&Apache::loncommon::bodytag('Browse Resources'));
1.17      harris41  336: # - Evaluate actions from previous page (both cumulatively and chronologically)
1.16      harris41  337:         if ($ENV{'form.catalogmode'} eq 'groupimport') {
                    338: 	    my $acts=$ENV{'form.acts'};
                    339: 	    my @Acts=split(/b/,$acts);
                    340: 	    my %ahash;
                    341: 	    my %achash;
                    342: 	    my $ac=0;
1.17      harris41  343: 	    # some initial hashes for working with data
1.27      harris41  344: 	    foreach (@Acts) {
1.16      harris41  345: 		my ($state,$ref)=split(/a/);
                    346: 		$ahash{$ref}=$state;
                    347: 		$achash{$ref}=$ac;
                    348: 		$ac++;
1.27      harris41  349: 	    }
1.17      harris41  350: 	    # sorting through the actions and changing the tied database hash
1.27      harris41  351: 	    foreach (sort {$achash{$a}<=>$achash{$b}} (keys %ahash)) {
1.16      harris41  352: 		my $key=$_;
                    353: 		if ($ahash{$key} eq '1') {
                    354: 		    $hash{'store_'.$hash{'pre_'.$key.'_link'}}=
                    355: 			$hash{'pre_'.$key.'_title'};
                    356: 		    $hash{'storectr_'.$hash{'pre_'.$key.'_link'}}=
                    357: 			$hash{'storectr'}+0;
                    358: 		    $hash{'storectr'}++;
                    359: 		}
                    360: 		if ($ahash{$key} eq '0') {
                    361: 		    if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
                    362: 			delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
                    363: 		    }
                    364: 		}
1.27      harris41  365: 	    }
1.17      harris41  366: 	    # deleting the previously cached listing
1.27      harris41  367: 	    foreach (keys %hash) {
1.16      harris41  368: 		if ($_ =~ /^pre_/ && $_ =~/link$/) {
                    369: 		    my $key = $_;
                    370: 		    $key =~ s/^pre_//;
                    371: 		    $key =~ s/_[^_]*$//;
                    372: 		    delete $hash{'pre_'.$key.'_title'};
                    373: 		    delete $hash{'pre_'.$key.'_link'};
                    374: 		}
1.27      harris41  375: 	    }
1.16      harris41  376: 	}
                    377: 	
1.23      harris41  378: # ---------------------------------- get state of file attributes to be showing
1.45      ng        379: 	if ($ENV{'form.attrs'} ne '') {
1.56      www       380: 	    for (my $i=0; $i<=8; $i++) {
1.6       harris41  381: 		delete $hash{'display_attrs_'.$i};
                    382: 		if ($ENV{'form.attr'.$i} == 1) {
1.45      ng        383: 		    $attrchk[$i] = 'checked';
1.6       harris41  384: 		    $hash{'display_attrs_'.$i} = 1;
                    385: 		}
                    386: 	    }
                    387: 	} else {
1.56      www       388: 	    for (my $i=0; $i<=8; $i++) {
1.45      ng        389: 		$attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
1.6       harris41  390: 	    }
                    391: 	}
1.23      harris41  392: # ------------------------------- output state of file attributes to be showing
1.15      harris41  393: 	$r->print(<<END);
1.17      harris41  394: <form method="post" name="fileattr" action="$uri"
                    395:  enctype="application/x-www-form-urlencoded">
1.45      ng        396: <b><font color="#666666">Display file attributes</font></b><br />
1.1       www       397: <table border=0><tr>
1.45      ng        398: <td><input type="checkbox" name="attr0" value="1" $attrchk[0] /> Title</td>
                    399: <td><input type="checkbox" name="attr1" value="1" $attrchk[1] /> Size</td>
                    400: <td><input type="checkbox" name="attr2" value="1" $attrchk[2] /> Last access</td>
                    401: <td><input type="checkbox" name="attr3" value="1" $attrchk[3] /> Last modified</td>
1.63      ng        402: <td><input type="checkbox" name="attr8" value="1" $attrchk[8] /> All versions</td></tr><tr>
1.45      ng        403: <td><input type="checkbox" name="attr4" value="1" $attrchk[4] /> Author</td>
                    404: <td><input type="checkbox" name="attr5" value="1" $attrchk[5] /> Keywords</td>
                    405: <td><input type="checkbox" name="attr6" value="1" $attrchk[6] /> Language</td>
1.63      ng        406: <td><input type="checkbox" name="attr7" value="1" $attrchk[7] /> Show Resource</td>
                    407: <td>&nbsp;</td>
1.1       www       408: </tr></table>
1.16      harris41  409: <input type="hidden" name="dirPointer" value="on" />
                    410: <input type="hidden" name="acts" value="" />
                    411: <input type="submit" name="attrs" value="Review" />&nbsp;
                    412: <input type="submit" name="attrs" value="Refresh" />
1.7       harris41  413: $closebutton
                    414: $groupimportbutton
1.1       www       415: </form>
                    416: END
                    417: 
1.23      harris41  418: # ----------------- output starting row to the indexed file/directory hierarchy
1.15      harris41  419:         my $titleclr="#ddffff";
1.40      matthew   420: #        $r->print(&initdebug());
                    421: #        $r->print(&writedebug("Omit:@Omit")) if (@Omit);
                    422: #        $r->print(&writedebug("Only:@Only")) if (@Only);
1.46      ng        423:         $r->print("<table width='100\%' border=0><tr><td bgcolor=#777777>\n");
1.45      ng        424: 	$r->print("<table width='100\%' border=0><tr bgcolor=$titleclr>\n");
                    425: 	$r->print("<td $colspan><b>Name</b></td>\n");
                    426: 	$r->print("<td><b>Title</b></td>\n") 
                    427: 	    if ($hash{'display_attrs_0'} == 1);
                    428: 	$r->print("<td align=right><b>Size (bytes) ".
                    429: 		  "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
                    430: 	$r->print("<td><b>Last accessed</b></td>\n") 
1.17      harris41  431: 	    if ($hash{'display_attrs_2'} == 1);
1.45      ng        432: 	$r->print("<td><b>Last modified</b></td>\n")
1.17      harris41  433: 	    if ($hash{'display_attrs_3'} == 1);
1.45      ng        434: 	$r->print("<td><b>Author(s)</b></td>\n")
1.17      harris41  435: 	    if ($hash{'display_attrs_4'} == 1);
1.45      ng        436: 	$r->print("<td><b>Keywords</b></td>\n")
1.17      harris41  437: 	    if ($hash{'display_attrs_5'} == 1);
1.45      ng        438: 	$r->print("<td><b>Language</b></td>\n")
                    439: 	    if ($hash{'display_attrs_6'} == 1);
1.56      www       440: 	$r->print("<td><b>Resource</b></td>\n")
1.63      ng        441: 	    if ($hash{'display_attrs_7'} == 1);
1.45      ng        442: 	$r->print('</tr>');
1.5       harris41  443: 
1.23      harris41  444: # ----------------- read in what directories have previously been set to "open"
1.27      harris41  445: 	foreach (keys %hash) {
1.4       harris41  446: 	    if ($_ =~ /^diropen_status_/) {
                    447: 		my $key = $_;
                    448: 		$key =~ s/^diropen_status_//;
                    449: 		$dirs{$key} = $hash{$_};
                    450: 	    }
1.27      harris41  451: 	}
1.4       harris41  452: 
1.2       harris41  453: 	if ($ENV{'form.openuri'}) {  # take care of review and refresh options
                    454: 	    my $uri=$ENV{'form.openuri'};
1.4       harris41  455: 	    if (exists($hash{'diropen_status_'.$uri})) {
                    456: 		my $cursta = $hash{'diropen_status_'.$uri};
1.2       harris41  457: 		$dirs{$uri} = 'open';
1.4       harris41  458: 		$hash{'diropen_status_'.$uri} = 'open';
                    459: 		if ($cursta eq 'open') {
                    460: 		    $dirs{$uri} = 'closed';
                    461: 		    $hash{'diropen_status_'.$uri} = 'closed';
                    462: 		}
1.2       harris41  463: 	    } else {
1.4       harris41  464: 		$hash{'diropen_status_'.$uri} = 'open';
1.2       harris41  465: 		$dirs{$uri} = 'open';
                    466: 	    }
                    467: 	}
1.12      ng        468: 	
                    469: 	my $bredir = $ENV{'form.dirPointer'};
                    470: 	my $toplevel;
1.13      ng        471: 	my $indent = 0;
1.12      ng        472: 	$uri = $uri.'/' if $uri !~ /.*\/$/;
1.17      harris41  473: 
1.45      ng        474: 	if ($bredir ne 'on') {
1.12      ng        475: 	    $hash{'top.level'} = $uri;
                    476: 	    $toplevel = $uri;
1.13      ng        477: 
                    478: 	} else {
                    479: 	    $toplevel = $hash{'top.level'};
                    480: 	}
1.17      harris41  481: 
1.23      harris41  482: # -------------------------------- if not at top level, provide an uplink arrow
1.45      ng        483: 	if ($toplevel ne '/res/'){
1.13      ng        484: 	    my (@uri_com) = split(/\//,$uri);
                    485: 	    pop @uri_com;
                    486: 	    my $upone = join('/',@uri_com);
                    487: 	    my @list = qw (0);
                    488: 	    &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
                    489: 	    $indent = 1;
1.12      ng        490: 	}
1.17      harris41  491: 
1.23      harris41  492: # -------- recursively go through all the directories and output as appropriate
1.16      harris41  493: 	&scanDir ($r,$toplevel,$indent,\%hash);
1.12      ng        494: 	
1.23      harris41  495: # ---------------------------- embed hidden information useful for group import
1.8       harris41  496: 	$r->print("<form name='fnum'>");
                    497: 	$r->print("<input type='hidden' name='fnum' value='$fnum'></form>");
1.17      harris41  498: 
1.23      harris41  499: # -------------------------------------------------------------- end the tables
1.45      ng        500: 	$r->print('</table>');
                    501: 	$r->print('</td></tr></table>');
1.17      harris41  502: 
1.23      harris41  503: # --------------------------------------------------- end the output and return
1.45      ng        504: 	$r->print('</body></html>'."\n");
1.68    ! albertel  505: #    } else {
        !           506: #	$r->print('<html><head></head><body>Unable to tie hash to db '.
        !           507: #		  'file</body></html>');
        !           508: #	return OK;
1.2       harris41  509:     }
1.67      matthew   510:     if(! $c->aborted()) {
1.68    ! albertel  511: 	my %dbfile;
1.67      matthew   512:         if (tie(%dbfile,'GDBM_File',$diropendb,&GDBM_NEWDB(),0640)) {
                    513:             while (my($key,$value) = each(%hash)) {
                    514:                 $dbfile{$key}=$value;
                    515:             }
                    516:             untie(%dbfile);
                    517:         }
                    518:     }
                    519: 
1.1       www       520:     return OK;
                    521: }
1.2       harris41  522: 
1.17      harris41  523: # ----------------------------------------------- recursive scan of a directory
1.2       harris41  524: sub scanDir {
1.16      harris41  525:     my ($r,$startdir,$indent,$hashref)=@_;
1.67      matthew   526:     my $c = $r->connection();
1.3       harris41  527:     my ($compuri,$curdir);
                    528:     my $dirptr=16384;
1.1       www       529:     $indent++;
                    530: 
1.2       harris41  531:     my %dupdirs = %dirs;
                    532:     my @list=&get_list($r,$startdir);
                    533:     foreach my $line (@list) {
1.67      matthew   534:         return if ($c->aborted());
1.53      albertel  535: 	my ($strip,$dom,undef,$testdir,undef)=split(/\&/,$line,5); 
1.4       harris41  536: 	next if $strip =~ /.*\.meta$/;
1.18      ng        537: 	my (@fileparts) = split(/\./,$strip);
1.63      ng        538: 	if ($hash{'display_attrs_8'} != 1) {
1.18      ng        539: 	    if (scalar(@fileparts) >= 3) {
                    540: 		my $fext = pop @fileparts;
                    541: 		my $ov = pop @fileparts;
                    542: 		my $fname = join ('.',@fileparts,$fext);
1.62      albertel  543: 		next if (grep /\Q$fname\E/,@list and $ov =~ /\d+/);
1.18      ng        544: 	    }
                    545: 	}
                    546: 
1.45      ng        547: 	if ($dom eq 'domain') {
                    548: 	    $compuri = join('',$strip,'/');  # dom list has /res/<domain name>
1.3       harris41  549: 	    $curdir = $compuri;
1.2       harris41  550: 	} else {
1.17      harris41  551: 	    # user, dir & file have name only, i.e., w/o path
1.45      ng        552: 	    $compuri = join('',$startdir,$strip,'/');
1.3       harris41  553: 	    $curdir = $startdir;
1.2       harris41  554: 	}
1.45      ng        555: 	my $diropen = 'closed';
1.5       harris41  556: 	if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/)) {
1.3       harris41  557: 	    while (my ($key,$val)= each %dupdirs) {
1.5       harris41  558: 		if ($key eq $compuri and $val eq "open") {
1.11      ng        559: 		    $diropen = "opened";
1.53      albertel  560: 		    delete($dupdirs{$key});
                    561: 		    delete($dirs{$key});
1.5       harris41  562: 		}
1.3       harris41  563: 	    }
1.1       www       564: 	}
1.16      harris41  565: 	&display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
1.45      ng        566: 	&scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
1.1       www       567:     }
                    568:     $indent--;
                    569: }
                    570: 
1.17      harris41  571: # --------------- get complete matched list based on the uri (returns an array)
1.1       www       572: sub get_list {
                    573:     my ($r,$uri)=@_;
                    574:     my @list;
1.45      ng        575:     (my $luri = $uri) =~ s/\//_/g;
1.2       harris41  576: 
1.45      ng        577:     if ($ENV{'form.attrs'} eq 'Refresh') {
1.27      harris41  578: 	foreach (keys %hash) {
1.4       harris41  579: 	    delete $hash{$_} if ($_ =~ /^dirlist_files_/);
1.27      harris41  580: 	    }
1.2       harris41  581:     }
                    582: 
1.4       harris41  583:     if ($hash{'dirlist_files'.$luri}) {
                    584: 	@list = split(/\n/,$hash{'dirlist_files_'.$luri});
1.1       www       585:     } else {
1.4       harris41  586: 	@list = &Apache::lonnet::dirlist($uri);
                    587: 	$hash{'dirlist_files_'.$luri} = join('\n',@list);
1.1       www       588:     }
                    589:     return @list=&match_ext($r,@list);
                    590: }
                    591: 
1.40      matthew   592: sub initdebug {
                    593:     return <<ENDJS;
                    594: <script>
                    595: var debugging = true;
                    596: if (debugging) {
                    597:     var debuggingWindow = window.open('','Debug','width=400,height=300',true);
                    598: } 
                    599: 
                    600: function output(text) {
                    601:     if (debugging) {
                    602:         debuggingWindow.document.writeln(text);
                    603:     }
                    604: }
                    605: output("<html><head><title>Debugging Window</title></head><body><pre>");   
                    606: </script>
                    607: ENDJS
                    608: }
                    609: 
                    610: sub writedebug {
                    611:     my $text = shift;
                    612:     return "<script>output('$text');</script>";
                    613: }
                    614: 
1.17      harris41  615: # -------------------- filters out files based on extensions (returns an array)
1.1       www       616: sub match_ext {
                    617:     my ($r,@packlist)=@_;
                    618:     my @trimlist;
                    619:     my $nextline;
                    620:     my @fileext;
                    621:     my $dirptr=16384;
                    622: 
1.2       harris41  623:     foreach my $line (@packlist) {
                    624: 	chomp $line;
                    625: 	$line =~ s/^\/home\/httpd\/html//;
                    626: 	my @unpackline = split (/\&/,$line);
1.45      ng        627: 	next if ($unpackline[0] eq '.');
                    628: 	next if ($unpackline[0] eq '..');
1.2       harris41  629: 	my @filecom = split (/\./,$unpackline[0]);
                    630: 	my $fext = pop(@filecom);
                    631: 	my $fnptr = $unpackline[3]&$dirptr;
                    632:  	if ($fnptr == 0 and $unpackline[3] ne "") {
1.28      harris41  633: 	    my $embstyle = &Apache::loncommon::fileembstyle($fext);
1.25      matthew   634:             push @trimlist,$line if (defined($embstyle) && 
1.32      harris41  635: 				     ($embstyle ne 'hdn' or $fext eq 'meta'));
1.1       www       636: 	} else {
1.2       harris41  637: 	    push @trimlist,$line;
1.1       www       638: 	}
                    639:     }
1.4       harris41  640:     @trimlist = sort (@trimlist);
1.1       www       641:     return @trimlist;
                    642: }
                    643: 
1.17      harris41  644: # ------------------------------- displays one line in appropriate table format
1.23      harris41  645: sub display_line {
1.16      harris41  646:     my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
1.53      albertel  647:     my (@pathfn, $fndir);
1.1       www       648:     my $dirptr=16384;
                    649:     my $fileclr="#ffffe6";
1.45      ng        650:     my $iconpath= $r->dir_config('lonIconsURL') . '/';
1.1       www       651: 
                    652:     my @filecom = split (/\&/,$line);
                    653:     my @pathcom = split (/\//,$filecom[0]);
                    654:     my $listname = $pathcom[scalar(@pathcom)-1];
                    655:     my $fnptr = $filecom[3]&$dirptr;
1.4       harris41  656:     my $msg = 'View '.$filecom[0].' resources';
1.45      ng        657:     $msg = 'Close '.$filecom[0].' directory' if $diropen eq 'opened';
1.1       www       658: 
1.45      ng        659:     my $tabtag='</td>';
1.1       www       660:     my $i=0;
                    661: 
1.63      ng        662:     while ($i<=7) {
1.45      ng        663: 	$tabtag=join('',$tabtag,"<td>&nbsp;</td>")
1.17      harris41  664: 	    if $hash{'display_attrs_'.$i} == 1;
1.1       www       665: 	$i++;
                    666:     }
1.63      ng        667: 	
                    668:     my $valign = ($hash{'display_attrs_7'} == 1 ? 'top' : 'bottom');
1.17      harris41  669: 
                    670: # display uplink arrow
1.45      ng        671:     if ($filecom[1] eq 'viewOneUp') {
                    672: 	$r->print("<tr bgcolor=$fileclr>$extrafield");
1.63      ng        673: 	$r->print("<td valign=$valign>\n");
1.16      harris41  674: 	$r->print ('<form method="post" name="dirpathUP" action="'.$startdir.
                    675: 		   '/" '.
1.17      harris41  676: 		   'onSubmit="return rep_dirpath(\'UP\','.
                    677: 		   'document.forms.fileattr.acts.value)" '.
1.16      harris41  678: 		   'enctype="application/x-www-form-urlencoded"'.
                    679:                    '>'."\n");
1.17      harris41  680: 	$r->print ('<input type=hidden name=openuri value="'.
                    681: 		   $startdir.'">'."\n");
1.16      harris41  682: 	$r->print ('<input type="hidden" name="acts" value="">'."\n");
1.13      ng        683: 	$r->print ('<input src="'.$iconpath.'arrow_up.gif"');
1.17      harris41  684: 	$r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
                    685: 		   "\n");
1.13      ng        686: 	$r->print("Up $tabtag</tr></form>\n");
                    687: 	return OK;
                    688:     }
1.64      www       689: # Do we have permission to look at this?
                    690: 
                    691:     return OK if (!&Apache::lonnet::allowed('bre',$startdir.$filecom[0]));
1.17      harris41  692: 
                    693: # display domain
1.45      ng        694:     if ($filecom[1] eq 'domain') {
1.17      harris41  695: 	$r->print ('<input type="hidden" name="dirPointer" value="on">'."\n")
                    696: 	    if ($ENV{'form.dirPointer'} eq "on");
1.45      ng        697: 	$r->print("<tr bgcolor=$fileclr>$extrafield");
1.63      ng        698: 	$r->print("<td valign=$valign>");
1.2       harris41  699: 	&begin_form ($r,$filecom[0].'/');
1.3       harris41  700: 	my $anchor = $filecom[0].'/';
                    701: 	$anchor =~ s/\///g;
1.13      ng        702: 	$r->print ('<a name="'.$anchor.'">');
1.16      harris41  703: 	$r->print ('<input type="hidden" name="acts" value="">');
1.17      harris41  704: 	$r->print ('<input src="'.$iconpath.'folder_pointer_'.
                    705: 		   $diropen.'.gif"'); 
                    706: 	$r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
                    707: 		   "\n");
                    708: 	$r->print ('<a href="javascript:gothere(\''.$filecom[0].
                    709: 		   '/\')"><img src="'.$iconpath.'server.gif"');
                    710: 	$r->print (' border="0" /></a>'."\n");
1.60      albertel  711: 	$r->print ("Domain - $listname ");
                    712: 	if ($Apache::lonnet::domaindescription{$listname}) {
                    713: 	    $r->print("(".$Apache::lonnet::domaindescription{$listname}.
                    714: 		      ")");
                    715: 	}
                    716: 	$r->print (" $tabtag</tr></form>\n");
1.1       www       717: 	return OK;
1.17      harris41  718: 
                    719: # display user directory
1.1       www       720:     }
1.45      ng        721:     if ($filecom[1] eq 'user') {
                    722: 	$r->print("<tr bgcolor=$fileclr>$extrafield");
1.63      ng        723: 	$r->print("<td valign=$valign nowrap>\n");
1.2       harris41  724: 	my $curdir = $startdir.$filecom[0].'/';
1.3       harris41  725: 	my $anchor = $curdir;
                    726: 	$anchor =~ s/\///g;
1.13      ng        727: 	&begin_form ($r,$curdir);
1.17      harris41  728: 	$r->print ('<a name="'.$anchor.'"><img src="'.$iconpath.
                    729: 		   'whitespace1.gif" border="0" />'."\n");
1.16      harris41  730: 	$r->print ('<input type="hidden" name="acts" value="">');
1.17      harris41  731: 	$r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
                    732: 		   '.gif"'); 
                    733: 	$r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
                    734: 		   "\n");
                    735: 	$r->print ('<a href="javascript:gothere(\''.$curdir.'\')"><img src='.
                    736: 		   $iconpath.'quill.gif border="0" name="'.$msg.
                    737: 		   '" height="22" /></a>');
1.60      albertel  738: 	my $domain=(split(m|/|,$startdir))[2];
                    739: 	my $plainname=&Apache::loncommon::plainname($listname,$domain);
                    740: 	$r->print ($listname);
                    741: 	if (defined($plainname) && $plainname) { $r->print(" ($plainname) "); }
                    742: 	$r->print ($tabtag.'</tr></form>'."\n");
1.1       www       743: 	return OK;
                    744:     }
1.17      harris41  745: 
1.1       www       746: # display file
1.45      ng        747:     if ($fnptr == 0 and $filecom[3] ne '') {
1.47      ng        748: 	my $filelink = $startdir.$filecom[0];
1.1       www       749: 	my @file_ext = split (/\./,$listname);
1.25      matthew   750: 	my $curfext = $file_ext[-1];
1.40      matthew   751:         if (@Omit) {
                    752:             foreach (@Omit) { return OK if ($curfext eq $_); }
                    753:         }
                    754:         if (@Only) {
                    755:             my $skip = 1;
                    756:             foreach (@Only) { $skip = 0 if ($curfext eq $_); }
                    757:             return OK if ($skip > 0);
                    758:         }
1.25      matthew   759: 	# Set the icon for the file
1.26      matthew   760: 	my $iconname = "unknown.gif";
1.28      harris41  761: 	my $embstyle = &Apache::loncommon::fileembstyle($curfext);
1.25      matthew   762: 	# The unless conditional that follows is a bit of overkill
                    763: 	$iconname = $curfext.".gif" unless
1.26      matthew   764: 	    (!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn');
1.25      matthew   765: 	#
1.63      ng        766: 	$r->print("<tr bgcolor=$fileclr><td nowrap valign='$valign'>");
1.62      albertel  767: 	my $metafile = grep /^\Q$filecom[0]\E\.meta\&/, @list;
1.7       harris41  768: 	my $title;
                    769:         if ($ENV{'form.catalogmode'} eq 'interactive') {
                    770: 	    $title=$listname;
1.8       harris41  771: 	    $title = &Apache::lonnet::metadata($filelink,'title')
                    772: 		if ($metafile == 1);
1.7       harris41  773: 	    $title=$listname unless $title;
1.42      albertel  774: 	    my $titleesc=HTML::Entities::encode($title);
                    775: 	    $titleesc=~s/\'/\\'/; #' (clean up this spare quote)
1.35      matthew   776:             $r->print("<a href=\"javascript:select_data(\'",
1.34      harris41  777:                       $titleesc,"','",$filelink,"')\">");
1.17      harris41  778: 	    $r->print("<img src='",$iconpath,"select.gif' border='0' /></a>".
                    779: 		      "\n");
1.63      ng        780: 	    $r->print("</td><td valign='$valign' nowrap>");
1.8       harris41  781: 	}
                    782:         elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
                    783: 	    $title=$listname;
                    784: 	    $title = &Apache::lonnet::metadata($filelink,'title')
                    785: 		if ($metafile == 1);
                    786: 	    $title=$listname unless $title;
1.42      albertel  787: 	    my $titleesc=&HTML::Entities::encode($title);
1.8       harris41  788: 	    $r->print("<form name='form$fnum'>\n");
                    789: 	    $r->print("<input type='checkbox' name='filelink"."' ".
1.16      harris41  790: 		      "value='$filelink' onClick='".
                    791: 		      "javascript:queue(\"form$fnum\")' ");
                    792: 	    if ($hash{'store_'.$filelink}) {
                    793: 		$r->print("checked");
                    794: 	    }
                    795: 	    $r->print(">\n");
1.8       harris41  796: 	    $r->print("<input type='hidden' name='title"."' ".
1.42      albertel  797: 		      "value='$titleesc'>\n");
1.8       harris41  798: 	    $r->print("</form>\n");
1.63      ng        799: 	    $r->print("</td><td valign='$valign' nowrap>");
1.16      harris41  800: 	    $hash{"pre_${fnum}_link"}=$filelink;
1.42      albertel  801: 	    $hash{"pre_${fnum}_title"}=$titleesc;
1.8       harris41  802:   	    $fnum++;
1.7       harris41  803: 	}
1.4       harris41  804: 
1.12      ng        805: 	if ($indent > 0 and $indent < 11) {
1.17      harris41  806: 	    $r->print("<img src=",$iconpath,"whitespace",$indent,
                    807: 		      ".gif border='0' />\n");
1.11      ng        808: 	} elsif ($indent >0) {
1.4       harris41  809: 	    my $ten = int($indent/10.);
                    810: 	    my $rem = $indent%10.0;
                    811: 	    my $count = 0;
                    812: 	    while ($count < $ten) {
1.17      harris41  813: 		$r->print("<img src=",$iconpath,
                    814: 			  "whitespace10.gif border='0' />\n");
1.1       www       815: 	    $count++;
1.4       harris41  816: 	    }
1.17      harris41  817: 	    $r->print("<img src=",$iconpath,"whitespace",$rem,
                    818: 		      ".gif border='0' />\n") if $rem > 0;
1.1       www       819: 	}
1.4       harris41  820: 
1.25      matthew   821: 	$r->print("<img src=$iconpath$iconname border='0' />\n");
1.17      harris41  822: 	$r->print (" <a href=\"javascript:openWindow('".$filelink.
                    823: 		   "', 'metadatafile', '450', '500', 'no', 'yes')\";".
                    824: 		   " TARGET=_self>$listname</a> ");
                    825: 
                    826: 	$r->print (" (<a href=\"javascript:openWindow('".$filelink.
                    827: 		   ".meta', 'metadatafile', '400', '450', 'no', 'yes')\"; ".
                    828: 		   "TARGET=_self>metadata</a>) ") if ($metafile == 1);
1.2       harris41  829: 
1.7       harris41  830: 	$r->print("</td>\n");
1.45      ng        831: 	if ($hash{'display_attrs_0'} == 1) {
                    832: 	    my $title = &Apache::lonnet::metadata($filelink,'title')
                    833: 		if ($metafile == 1);
1.63      ng        834: 	    $r->print('<td valign=$valign> '.($title eq '' ? '&nbsp;' : $title).
1.45      ng        835: 		      ' </td>'."\n");
                    836: 	}
1.63      ng        837: 	$r->print('<td align=right valign=$valign> ',
1.17      harris41  838: 		  $filecom[8]," </td>\n") 
1.45      ng        839: 	    if $hash{'display_attrs_1'} == 1;
1.63      ng        840: 	$r->print('<td valign=$valign> '.
1.17      harris41  841: 		  (localtime($filecom[9]))." </td>\n") 
1.45      ng        842: 	    if $hash{'display_attrs_2'} == 1;
1.63      ng        843: 	$r->print('<td valign=$valign> '.
1.17      harris41  844: 		  (localtime($filecom[10]))." </td>\n") 
1.45      ng        845: 	    if $hash{'display_attrs_3'} == 1;
1.2       harris41  846: 
1.45      ng        847: 	if ($hash{'display_attrs_4'} == 1) {
1.17      harris41  848: 	    my $author = &Apache::lonnet::metadata($filelink,'author')
                    849: 		if ($metafile == 1);
1.63      ng        850: 	    $r->print('<td valign=$valign> '.($author eq '' ? '&nbsp;' : $author).
1.17      harris41  851: 		      " </td>\n");
1.2       harris41  852: 	}
1.45      ng        853: 	if ($hash{'display_attrs_5'} == 1) {
1.17      harris41  854: 	    my $keywords = &Apache::lonnet::metadata($filelink,'keywords')
                    855: 		if ($metafile == 1);
1.45      ng        856: 	    # $keywords = '&nbsp;' if (!$keywords);
1.63      ng        857: 	    $r->print('<td valign=$valign> '.($keywords eq '' ? '&nbsp;' : $keywords).
1.17      harris41  858: 		      " </td>\n");
1.2       harris41  859: 	}
1.45      ng        860: 	if ($hash{'display_attrs_6'} == 1) {
1.17      harris41  861: 	    my $lang = &Apache::lonnet::metadata($filelink,'language')
                    862: 		if ($metafile == 1);
1.28      harris41  863: 	    $lang = &Apache::loncommon::languagedescription($lang);
1.63      ng        864: 	    $r->print('<td valign=$valign> '.($lang eq '' ? '&nbsp;' : $lang).
1.17      harris41  865: 		      " </td>\n");
1.2       harris41  866: 	}
1.63      ng        867:         if ($hash{'display_attrs_7'} == 1) {
1.56      www       868:             my $output='';
1.57      www       869:             my $embstyle=&Apache::loncommon::fileembstyle($curfext);
                    870: 	    if ($embstyle eq 'ssi') {
1.61      www       871: 	       $output=&Apache::lonnet::ssi_body($filelink);
1.56      www       872:                $output='<font size="-2">'.$output.'</font>';
1.57      www       873: 	   } elsif ($embstyle eq 'img') {
                    874:                $output='<img src="'.$filelink.'" />';
1.58      www       875:            } elsif ($filelink=~/^\/res\/(\w+)\/(\w+)\//) {
                    876:                $output='<img src="http://'.
                    877: 		 $Apache::lonnet::hostname{&Apache::lonnet::homeserver($2,$1)}.
                    878:                  '/cgi-bin/thumbnail.gif?url='.$filelink.'" />';
1.57      www       879:            }
1.63      ng        880: 	   $r->print('<td valign=$valign> '.($output eq '' ? '&nbsp;':$output).
1.56      www       881: 		      " </td>\n");
                    882:         }
1.1       www       883: 	$r->print("</tr>\n");
                    884:     }
1.17      harris41  885: 
1.2       harris41  886: # -- display directory
1.1       www       887:     if ($fnptr == $dirptr) {
                    888: 	my @file_ext = split (/\./,$listname);
                    889: 	my $curfext = $file_ext[scalar(@file_ext)-1];
1.2       harris41  890: 	my $curdir = $startdir.$filecom[0].'/';
1.3       harris41  891: 	my $anchor = $curdir;
                    892: 	$anchor =~ s/\///g;
1.63      ng        893: 	$r->print("<tr bgcolor=$fileclr>$extrafield<td valign=$valign>");
1.2       harris41  894: 	&begin_form ($r,$curdir);
1.4       harris41  895: 	my $indentm1 = $indent-1;
1.11      ng        896: 	if ($indentm1 < 11 and $indentm1 > 0) {
1.17      harris41  897: 	    $r->print("<img src=",$iconpath,"whitespace",$indentm1,
                    898: 		      ".gif border='0' />\n");
1.4       harris41  899: 	} else {
                    900: 	    my $ten = int($indentm1/10.);
                    901: 	    my $rem = $indentm1%10.0;
                    902: 	    my $count = 0;
                    903: 	    while ($count < $ten) {
1.17      harris41  904: 		$r->print ("<img src=",$iconpath
                    905: 			   ,"whitespace10.gif border='0' />\n");
1.12      ng        906: 		$count++;
1.4       harris41  907: 	    }
1.17      harris41  908: 	    $r->print ("<img src=",$iconpath,"whitespace",$rem,
                    909: 		       ".gif border='0' />\n") if $rem > 0;
1.1       www       910: 	}
1.16      harris41  911: 	$r->print ('<input type="hidden" name="acts" value="">');
1.17      harris41  912: 	$r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
                    913: 		   'folder_pointer_'.$diropen.'.gif"');
                    914: 	$r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
                    915: 		   "\n");
                    916: 	$r->print ('<a href="javascript:gothere(\''.$curdir.'\')"><img src="'.
                    917: 		   $iconpath.'folder_'.$diropen.'.gif" border="0" /></a>'.
                    918: 		   "\n");
1.13      ng        919: 	$r->print ("$listname$tabtag</tr></form>\n");
1.1       www       920:     }
1.2       harris41  921: 
1.1       www       922: }
                    923: 
1.14      harris41  924: # ------------------- prints the beginning of a form for directory or file link
1.1       www       925: sub begin_form {
                    926:     my ($r,$uri) = @_;
1.3       harris41  927:     my $anchor = $uri;
                    928:     $anchor =~ s/\///g;
1.17      harris41  929:     $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
                    930: 	       '#'.$anchor.
                    931: 	       '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
                    932: 	       ',document.forms.fileattr.acts.value)" '.
1.16      harris41  933: 	       'enctype="application/x-www-form-urlencoded">'."\n");
1.17      harris41  934:     $r->print ('<input type="hidden" name="openuri" value="'.$uri.'">'.
                    935: 	       "\n");
                    936:     $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n");
1.16      harris41  937:     $dnum++;
1.17      harris41  938: }
                    939: 
                    940: # --------- settings whenever the user causes the indexer window to be launched
                    941: sub start_fresh_session {
1.48      matthew   942:     delete $hash{'form.catalogmode'};
                    943:     delete $hash{'form.mode'};
                    944:     delete $hash{'form.form'};
                    945:     delete $hash{'form.element'};
                    946:     delete $hash{'form.omit'};
                    947:     delete $hash{'form.only'};
1.27      harris41  948:     foreach (keys %hash) {
1.48      matthew   949:         delete $hash{$_} if (/^(pre_|store)/);
1.27      harris41  950:     }
1.1       www       951: }
                    952: 
1.35      matthew   953: # ------------------------------------------------------------------- setvalues
                    954: sub setvalues {
                    955:     # setvalues is used in registerurl to synchronize the database
                    956:     # hash and environment hashes
                    957:     my ($H1,$h1key,$H2,$h2key) =@_;
                    958:     #
                    959:     if (exists $H2->{$h2key}) {
                    960: 	$H1->{$h1key} = $H2->{$h2key};
                    961:     } elsif (exists $H1->{$h1key}) {
                    962: 	$H2->{$h2key} = $H1->{$h1key};
                    963:     } 
                    964: }
                    965: 
1.1       www       966: 1;
1.54      www       967: 
                    968: sub cleanup {
1.55      www       969:     if (tied(%hash)){
                    970: 	&Apache::lonnet::logthis('Cleanup indexer: hash');
                    971:     }
1.54      www       972: }
1.23      harris41  973: 
                    974: =head1 NAME
                    975: 
                    976: Apache::lonindexer - mod_perl module for cross server filesystem browsing
                    977: 
                    978: =head1 SYNOPSIS
                    979: 
                    980: Invoked by /etc/httpd/conf/srm.conf:
                    981: 
                    982:  <LocationMatch "^/res.*/$">
                    983:  SetHandler perl-script
                    984:  PerlHandler Apache::lonindexer
                    985:  </LocationMatch>
                    986: 
                    987: =head1 INTRODUCTION
                    988: 
                    989: This module enables a scheme of browsing across a cross server.
                    990: 
                    991: This is part of the LearningOnline Network with CAPA project
                    992: described at http://www.lon-capa.org.
                    993: 
                    994: =head1 BEGIN SUBROUTINE
                    995: 
                    996: This routine is only run once after compilation.
                    997: 
                    998: =over 4
                    999: 
                   1000: =item *
                   1001: 
                   1002: Initializes %language hash table.
                   1003: 
                   1004: =back
                   1005: 
                   1006: =head1 HANDLER SUBROUTINE
                   1007: 
                   1008: This routine is called by Apache and mod_perl.
                   1009: 
                   1010: =over 4
                   1011: 
                   1012: =item *
                   1013: 
                   1014: read in machine configuration variables
                   1015: 
                   1016: =item *
                   1017: 
                   1018: see if called from an interactive mode
                   1019: 
                   1020: =item *
                   1021: 
                   1022: refresh environment with user database values (in %hash)
                   1023: 
                   1024: =item *
                   1025: 
                   1026: define extra fields and buttons in case of special mode
                   1027: 
                   1028: =item *
                   1029: 
                   1030: set catalogmodefunctions to have extra needed javascript functionality
                   1031: 
                   1032: =item *
                   1033: 
                   1034: print header
                   1035: 
                   1036: =item *
                   1037: 
                   1038: evaluate actions from previous page (both cumulatively and chronologically)
                   1039: 
                   1040: =item *
                   1041: 
                   1042: output title
                   1043: 
                   1044: =item *
                   1045: 
                   1046: get state of file attributes to be showing
                   1047: 
                   1048: =item *
                   1049: 
                   1050: output state of file attributes to be showing
                   1051: 
                   1052: =item *
                   1053: 
                   1054: output starting row to the indexed file/directory hierarchy
                   1055: 
                   1056: =item *
                   1057: 
                   1058: read in what directories have previously been set to "open"
                   1059: 
                   1060: =item *
                   1061: 
                   1062: if not at top level, provide an uplink arrow
                   1063: 
                   1064: =item *
                   1065: 
                   1066: recursively go through all the directories and output as appropriate
                   1067: 
                   1068: =item *
                   1069: 
                   1070: information useful for group import
                   1071: 
                   1072: =item *
                   1073: 
                   1074: end the tables
                   1075: 
                   1076: =item *
                   1077: 
                   1078: end the output and return
                   1079: 
                   1080: =back
                   1081: 
                   1082: =head1 OTHER SUBROUTINES
                   1083: 
                   1084: =over 4
                   1085: 
                   1086: =item *
                   1087: 
                   1088: scanDir - recursive scan of a directory
                   1089: 
                   1090: =item *
                   1091: 
                   1092: get_list - get complete matched list based on the uri (returns an array)
                   1093: 
                   1094: =item *
                   1095: 
                   1096: match_ext - filters out files based on extensions (returns an array)
                   1097: 
                   1098: =item *
                   1099: 
                   1100: display_line - displays one line in appropriate table format
                   1101: 
                   1102: =item *
                   1103: 
                   1104: begin_form - prints the beginning of a form for directory or file link
                   1105: 
                   1106: =item *
                   1107: 
                   1108: start_fresh_session - settings whenever the user causes the indexer window
                   1109: to be launched
                   1110: 
                   1111: =back
                   1112: 
                   1113: =cut

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