Annotation of loncom/interface/lonindexer.pm, revision 1.47

1.1       www         1: # The LearningOnline Network with CAPA
1.24      harris41    2: # Directory Indexer
                      3: #
1.47    ! ng          4: # $Id: lonindexer.pm,v 1.46 2002/07/02 21:08:24 ng Exp $
1.24      harris41    5: #
                      6: # Copyright Michigan State University Board of Trustees
                      7: #
                      8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      9: #
                     10: # LON-CAPA is free software; you can redistribute it and/or modify
                     11: # it under the terms of the GNU General Public License as published by
                     12: # the Free Software Foundation; either version 2 of the License, or
                     13: # (at your option) any later version.
1.14      harris41   14: #
1.24      harris41   15: # LON-CAPA is distributed in the hope that it will be useful,
                     16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     18: # GNU General Public License for more details.
                     19: #
                     20: # You should have received a copy of the GNU General Public License
                     21: # along with LON-CAPA; if not, write to the Free Software
                     22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     23: #
                     24: # /home/httpd/html/adm/gpl.txt
                     25: #
                     26: # http://www.lon-capa.org/
1.14      harris41   27: #
1.17      harris41   28: # YEAR=1999
                     29: # 5/21/99, 5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14 Gerd Kortemeyer)
1.1       www        30: # 11/23 Gerd Kortemeyer
1.17      harris41   31: # YEAR=2000
1.1       www        32: # 07/20-08/04 H.K. Ng
1.17      harris41   33: # YEAR=2001
1.2       harris41   34: # 05/9-05/19/2001 H. K. Ng
1.4       harris41   35: # 05/21/2001 H. K. Ng
1.6       harris41   36: # 05/23/2001 H. K. Ng
1.17      harris41   37: # 5/31,6/1,6/2,6/15 Scott Harrison
                     38: # 6/26,7/8 H. K. Ng
                     39: # 8/6,8/7,8/10 Scott Harrison
1.18      ng         40: # 8/14 H. K. Ng
1.24      harris41   41: # 8/28,10/15,11/28,11/29 Scott Harrison
1.25      matthew    42: # 11/30 Matthew Hall
1.28      harris41   43: # 12/11,12/13 Scott Harrison
1.32      harris41   44: # YEAR=2002
                     45: # 1/17 Scott Harrison
1.45      ng         46: # 6/29/2002 H. K. Ng
1.23      harris41   47: #
                     48: ###
                     49: 
                     50: ###############################################################################
                     51: ##                                                                           ##
                     52: ## ORGANIZATION OF THIS PERL MODULE                                          ##
                     53: ##                                                                           ##
                     54: ## 1. Description of functions                                               ##
                     55: ## 2. Modules used by this module                                            ##
                     56: ## 3. Choices for different output views (detailed, summary, xml, etc)       ##
                     57: ## 4. BEGIN block (to be run once after compilation)                         ##
                     58: ## 5. Handling routine called via Apache and mod_perl                        ##
                     59: ## 6. Other subroutines                                                      ##
                     60: ##                                                                           ##
                     61: ###############################################################################
1.7       harris41   62: 
1.1       www        63: package Apache::lonindexer;
                     64: 
1.23      harris41   65: # ------------------------------------------------- modules used by this module
1.1       www        66: use strict;
                     67: use Apache::lonnet();
1.30      harris41   68: use Apache::loncommon();
1.1       www        69: use Apache::Constants qw(:common);
1.2       harris41   70: use Apache::File;
                     71: use GDBM_File;
                     72: 
1.23      harris41   73: # ---------------------------------------- variables used throughout the module
1.17      harris41   74: my %hash; # tied to a user-specific gdbm file
                     75: my %dirs; # keys are directories, values are the open/close status
                     76: my %language; # has the reference information present in language.tab
                     77: 
                     78: # ----- Values which are set by the handler subroutine and are accessible to
                     79: # -----     other methods.
                     80: my $extrafield; # default extra table cell
                     81: my $fnum; # file counter
                     82: my $dnum; # directory counter
1.1       www        83: 
1.40      matthew    84: # ----- Used to include or exclude files with certain extensions.
1.43      matthew    85: my @Only = ();
1.40      matthew    86: my @Omit = ();
                     87: 
                     88: 
1.23      harris41   89: # ----------------------------- Handling routine called via Apache and mod_perl
1.1       www        90: sub handler {
                     91:     my $r = shift;
                     92:     $r->content_type('text/html');
                     93:     $r->send_http_header;
                     94:     return OK if $r->header_only;
1.9       harris41   95:     $fnum=0;
1.16      harris41   96:     $dnum=0;
1.22      harris41   97:     untie %hash;
1.17      harris41   98: 
1.43      matthew    99:     # Deal with stupid global variables (is there a way around making
                    100:     # these global to this package?  It is just so wrong....)
                    101:     undef (@Only);
                    102:     undef (@Omit);
                    103: 
1.23      harris41  104: # ------------------------------------- read in machine configuration variables
1.10      harris41  105:     my $iconpath= $r->dir_config('lonIconsURL') . "/";
1.1       www       106:     my $domain  = $r->dir_config('lonDefDomain');
                    107:     my $role    = $r->dir_config('lonRole');
                    108:     my $loadlim = $r->dir_config('lonLoadLim');
                    109:     my $servadm = $r->dir_config('lonAdmEMail');
                    110:     my $sysadm  = $r->dir_config('lonSysEMail');
                    111:     my $lonhost = $r->dir_config('lonHostID');
                    112:     my $tabdir  = $r->dir_config('lonTabDir');
                    113: 
1.7       harris41  114:     my $fileclr='#ffffe6';
1.15      harris41  115:     my $line;
                    116:     my (@attrchk,@openpath);
                    117:     my $uri=$r->uri;
                    118: 
1.7       harris41  119: # -------------------------------------- see if called from an interactive mode
1.35      matthew   120:     # Get the parameters from the query string
1.36      matthew   121:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.40      matthew   122: 	     ['catalogmode','launch','acts','mode','form','element',
                    123:               'only','omit']);
1.35      matthew   124:     #-------------------------------------------------------------------
1.17      harris41  125:     my $closebutton='';
1.7       harris41  126:     my $groupimportbutton='';
                    127:     my $colspan=''; 
1.14      harris41  128: 
                    129:     $extrafield='';
1.17      harris41  130:     my $diropendb = 
                    131: 	"/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_indexer.db";
1.15      harris41  132: 
                    133:     if (tie(%hash,'GDBM_File',$diropendb,&GDBM_WRCREAT,0640)) {
                    134: 	if ($ENV{'form.launch'} eq '1') {
1.17      harris41  135: 	    &start_fresh_session();
1.43      matthew   136:         }
1.17      harris41  137: # -------------------- refresh environment with user database values (in %hash)
1.15      harris41  138: 	if ($hash{'mode_catalog'} eq 'interactive') {
                    139: 	    $ENV{'form.catalogmode'}='interactive';
                    140: 	}
                    141: 	if ($hash{'mode_catalog'} eq 'groupimport') {
                    142: 	    $ENV{'form.catalogmode'}='groupimport';
                    143: 	}
                    144: 
1.17      harris41  145: # --------------------- define extra fields and buttons in case of special mode
1.15      harris41  146: 	if ($ENV{'form.catalogmode'} eq 'interactive') {
                    147: 	    $hash{'mode_catalog'}='interactive';
                    148: 	    $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
                    149: 		'<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
1.17      harris41  150: 		' border="0" /></td>';
1.15      harris41  151: 	    $colspan=" colspan='2' ";
                    152:             $closebutton=<<END;
1.7       harris41  153: <input type="button" name="close" value='CLOSE' onClick="self.close()">
                    154: END
1.16      harris41  155:         }
1.15      harris41  156: 	elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
                    157: 	    $hash{'mode_catalog'}='groupimport';
                    158: 	    $extrafield='<td bgcolor="'.$fileclr.'" valign="bottom">'.
                    159: 		'<a name="$anchor"><img src="'.$iconpath.'whitespace1.gif"'.
1.17      harris41  160: 		' border="0" /></td>';
1.15      harris41  161: 	    $colspan=" colspan='2' ";
                    162:             $closebutton=<<END;
1.7       harris41  163: <input type="button" name="close" value='CLOSE' onClick="self.close()">
                    164: END
1.15      harris41  165:             $groupimportbutton=<<END;
1.17      harris41  166: <input type="button" name="groupimport" value='GROUP IMPORT'
                    167: onClick="javascript:select_group()">
1.7       harris41  168: END
1.15      harris41  169:         }
1.35      matthew   170: 	# Additions made by Matthew to make the browser a little easier to deal
                    171: 	# with in the future.
                    172: 	#
                    173: 	# $mode (at this time) indicates if we are in edit mode.
                    174: 	# $form is the name of the form that the URL is placed when the
                    175: 	#       selection is made.
                    176: 	# $element is the name of the element in $formname which receives
                    177: 	#       the URL.
1.37      matthew   178: 	# &Apache::lonxml::debug('Checking mode, form, element');
1.35      matthew   179: 	&setvalues(\%hash,'form_mode'   ,\%ENV,'form.mode'   );
                    180: 	&setvalues(\%hash,'form_form'   ,\%ENV,'form.form'   );
                    181: 	&setvalues(\%hash,'form_element',\%ENV,'form.element');
1.40      matthew   182: 	&setvalues(\%hash,'form_only'   ,\%ENV,'form.only'   );
                    183: 	&setvalues(\%hash,'form_omit'   ,\%ENV,'form.omit'   );
1.35      matthew   184: 
1.40      matthew   185:         # Deal with 'omit' and 'only' 
                    186:         if (exists $ENV{'form.omit'}) {
                    187:             @Omit = split(',',$ENV{'form.omit'});
                    188:         }
                    189:         if (exists $ENV{'form.only'}) {
                    190:             @Only = split(',',$ENV{'form.only'});
                    191:         }
                    192:         
1.35      matthew   193: 	my $mode = $ENV{'form.mode'};
                    194: 	my ($form,$element);
1.39      matthew   195: 	if ($mode eq 'edit' || $mode eq 'parmset') {
1.35      matthew   196: 	    $form    = $ENV{'form.form'};
                    197: 	    $element = $ENV{'form.element'};
                    198: 	}
                    199: 	&Apache::lonxml::debug("mode=$mode form=$form element=$element");
1.17      harris41  200: # ------ set catalogmodefunctions to have extra needed javascript functionality
1.15      harris41  201: 	my $catalogmodefunctions='';
                    202: 	if ($ENV{'form.catalogmode'} eq 'interactive' or
                    203: 	    $ENV{'form.catalogmode'} eq 'groupimport') {
1.35      matthew   204: 	    # The if statement below sets us up to use the old version
                    205: 	    # by default (ie. if $mode is undefined).  This is the easy
                    206: 	    # way out.  Hopefully in the future I'll find a way to get 
                    207: 	    # the calls dealt with in a more comprehensive manner.
1.41      www       208: 
                    209: #
                    210: # There is now also mode "simple", which is for the simple version of the rat
                    211: #
                    212: #
1.39      matthew   213: 	    if (!defined($mode) || ($mode ne 'edit' && $mode ne 'parmset')) {
1.40      matthew   214:                 my $location = "/adm/groupsort?catalogmode=groupimport&";
1.41      www       215:                 $location .= "mode=".$mode."&";
1.40      matthew   216:                 $location .= "acts=";
1.35      matthew   217: 		$catalogmodefunctions=<<"END";
1.7       harris41  218: function select_data(title,url) {
                    219:     changeTitle(title);
                    220:     changeURL(url);
1.8       harris41  221:     self.close();
                    222: }
                    223: function select_group() {
1.40      matthew   224:     window.location="$location"+document.forms.fileattr.acts.value;
1.16      harris41  225: }
1.7       harris41  226: function changeTitle(val) {
1.35      matthew   227:     if (opener.inf) {
                    228:         if (opener.inf.document.forms.resinfo.elements.t) {
                    229:             opener.inf.document.forms.resinfo.elements.t.value=val;
                    230:         }
                    231:     }
                    232: }
                    233: function changeURL(val) {
                    234:     if (opener.inf) {
                    235:         if (opener.inf.document.forms.resinfo.elements.u) {
                    236: 	    opener.inf.document.forms.resinfo.elements.u.value=val;
                    237:         }
1.7       harris41  238:     }
                    239: }
1.35      matthew   240: END
1.39      matthew   241:             } elsif ($mode eq 'edit') { # we are in 'edit' mode
1.40      matthew   242:                 my $location = "/adm/groupsort?catalogmode=interactive&";
                    243:                 $location .= "form=$form&element=$element&mode=edit&acts=";
1.35      matthew   244: 		$catalogmodefunctions=<<END;
                    245: // mode = $mode
                    246: function select_data(title,url) {
                    247:     changeURL(url);
                    248:     self.close();
                    249: }
                    250: 
                    251: function select_group() {
1.40      matthew   252:     window.location="$location"+document.forms.fileattr.acts.value;
1.35      matthew   253: }
                    254: 
1.7       harris41  255: function changeURL(val) {
1.35      matthew   256:     if (window.opener.document) {
                    257: 	window.opener.document.forms["$form"].elements["$element"].value=val;
                    258:     } else {
                    259: 	    alert("The file you selected is: "+val);
1.7       harris41  260:     }
                    261: }
1.35      matthew   262: 
1.7       harris41  263: END
1.39      matthew   264:             } elsif ($mode eq 'parmset') {
1.40      matthew   265:                 my $location = "/adm/groupsort?catalogmode=interactive&";
                    266:                 $location .= "form=$form&element=$element&mode=parmset&acts=";
1.39      matthew   267: 		$catalogmodefunctions=<<END;
                    268: // mode = $mode
                    269: function select_data(title,url) {
                    270:     changeURL(url);
                    271:     self.close();
                    272: }
                    273: 
                    274: function select_group() {
1.40      matthew   275:     window.location="$location"+document.forms.fileattr.acts.value;
1.39      matthew   276: }
                    277: 
                    278: function changeURL(val) {
                    279:     if (window.opener.document) {
                    280:         var elementname  = "$element"+"_value";
                    281:         var checkboxname = "$element"+"_setparmval";
                    282: 	window.opener.document.forms["$form"].elements[elementname].value=val;
                    283:         window.opener.document.forms["$form"].elements[checkboxname].checked=true;
                    284:     } else {
                    285: 	    alert("The file you selected is: "+val);
                    286:     }
                    287: }
                    288: 
                    289: END
                    290:             }
1.15      harris41  291:         }
1.38      matthew   292:         $catalogmodefunctions.=<<END;
                    293: var acts='';
                    294: function rep_dirpath(suffix,val) {
                    295:     eval("document.forms.dirpath"+suffix+".acts.value=val");
                    296: }
                    297: END
1.16      harris41  298: 	if ($ENV{'form.catalogmode'} eq 'groupimport') {
1.38      matthew   299:             $catalogmodefunctions.=<<END;
1.16      harris41  300: function queue(val) {
                    301:     if (eval("document.forms."+val+".filelink.checked")) {
                    302: 	var l=val.length;
                    303: 	var v=val.substring(4,l);
                    304: 	document.forms.fileattr.acts.value+='1a'+v+'b';
                    305:     }
                    306:     else {
                    307: 	var l=val.length;
                    308: 	var v=val.substring(4,l);
                    309: 	document.forms.fileattr.acts.value+='0a'+v+'b';
                    310:     }
                    311: }
                    312: END
                    313: 	}
1.17      harris41  314: 
1.1       www       315: # ---------------------------------------------------------------- Print Header
1.15      harris41  316: 	$r->print(<<ENDHEADER);
1.1       www       317: <html>
                    318: <head>
1.2       harris41  319: <title>The LearningOnline Network With CAPA Directory Browser</title>
1.3       harris41  320: 
1.19      harris41  321: <script type="text/javascript">
1.7       harris41  322: $catalogmodefunctions
1.2       harris41  323: function openWindow(url, wdwName, w, h, toolbar,scrollbar) {
                    324:     var options = "width=" + w + ",height=" + h + ",";
                    325:     options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
                    326:     options += "menubar=no,toolbar="+toolbar+",location=no,directories=no";
                    327:     var newWin = window.open(url, wdwName, options);
                    328:     newWin.focus();
                    329: }
1.16      harris41  330: function gothere(val) {
                    331:     window.location=val+'?acts='+document.forms.fileattr.acts.value;
                    332: }
1.14      harris41  333: </script>
1.3       harris41  334: 
1.1       www       335: </head>
                    336: <body bgcolor="#FFFFFF">
                    337: ENDHEADER
1.17      harris41  338: 
                    339: # - Evaluate actions from previous page (both cumulatively and chronologically)
1.16      harris41  340:         if ($ENV{'form.catalogmode'} eq 'groupimport') {
                    341: 	    my $acts=$ENV{'form.acts'};
                    342: 	    my @Acts=split(/b/,$acts);
                    343: 	    my %ahash;
                    344: 	    my %achash;
                    345: 	    my $ac=0;
1.17      harris41  346: 	    # some initial hashes for working with data
1.27      harris41  347: 	    foreach (@Acts) {
1.16      harris41  348: 		my ($state,$ref)=split(/a/);
                    349: 		$ahash{$ref}=$state;
                    350: 		$achash{$ref}=$ac;
                    351: 		$ac++;
1.27      harris41  352: 	    }
1.17      harris41  353: 	    # sorting through the actions and changing the tied database hash
1.27      harris41  354: 	    foreach (sort {$achash{$a}<=>$achash{$b}} (keys %ahash)) {
1.16      harris41  355: 		my $key=$_;
                    356: 		if ($ahash{$key} eq '1') {
                    357: 		    $hash{'store_'.$hash{'pre_'.$key.'_link'}}=
                    358: 			$hash{'pre_'.$key.'_title'};
                    359: 		    $hash{'storectr_'.$hash{'pre_'.$key.'_link'}}=
                    360: 			$hash{'storectr'}+0;
                    361: 		    $hash{'storectr'}++;
                    362: 		}
                    363: 		if ($ahash{$key} eq '0') {
                    364: 		    if ($hash{'store_'.$hash{'pre_'.$key.'_link'}}) {
                    365: 			delete $hash{'store_'.$hash{'pre_'.$key.'_link'}};
                    366: 		    }
                    367: 		}
1.27      harris41  368: 	    }
1.17      harris41  369: 	    # deleting the previously cached listing
1.27      harris41  370: 	    foreach (keys %hash) {
1.16      harris41  371: 		if ($_ =~ /^pre_/ && $_ =~/link$/) {
                    372: 		    my $key = $_;
                    373: 		    $key =~ s/^pre_//;
                    374: 		    $key =~ s/_[^_]*$//;
                    375: 		    delete $hash{'pre_'.$key.'_title'};
                    376: 		    delete $hash{'pre_'.$key.'_link'};
                    377: 		}
1.27      harris41  378: 	    }
1.16      harris41  379: 	}
                    380: 	
1.23      harris41  381: # ---------------------------------------------------------------- output title
1.41      www       382: 	$r->print(
1.44      ng        383: '<h2><font color="#339933">The Learning<i>Online</i> Network with CAPA '.
1.17      harris41  384: 		  'Network Directory Browser</font></h2>'."\n");
1.23      harris41  385: # ---------------------------------- get state of file attributes to be showing
1.45      ng        386: 	if ($ENV{'form.attrs'} ne '') {
                    387: 	    for (my $i=0; $i<=7; $i++) {
1.6       harris41  388: 		delete $hash{'display_attrs_'.$i};
                    389: 		if ($ENV{'form.attr'.$i} == 1) {
1.45      ng        390: 		    $attrchk[$i] = 'checked';
1.6       harris41  391: 		    $hash{'display_attrs_'.$i} = 1;
                    392: 		}
                    393: 	    }
                    394: 	} else {
1.45      ng        395: 	    for (my $i=0; $i<=7; $i++) {
                    396: 		$attrchk[$i] = 'checked' if $hash{'display_attrs_'.$i} == 1;
1.6       harris41  397: 	    }
                    398: 	}
1.23      harris41  399: # ------------------------------- output state of file attributes to be showing
1.15      harris41  400: 	$r->print(<<END);
1.17      harris41  401: <form method="post" name="fileattr" action="$uri"
                    402:  enctype="application/x-www-form-urlencoded">
1.45      ng        403: <b><font color="#666666">Display file attributes</font></b><br />
1.1       www       404: <table border=0><tr>
1.45      ng        405: <td><input type="checkbox" name="attr0" value="1" $attrchk[0] /> Title</td>
                    406: <td><input type="checkbox" name="attr1" value="1" $attrchk[1] /> Size</td>
                    407: <td><input type="checkbox" name="attr2" value="1" $attrchk[2] /> Last access</td>
                    408: <td><input type="checkbox" name="attr3" value="1" $attrchk[3] /> Last modified</td>
1.1       www       409: </tr><tr>
1.45      ng        410: <td><input type="checkbox" name="attr4" value="1" $attrchk[4] /> Author</td>
                    411: <td><input type="checkbox" name="attr5" value="1" $attrchk[5] /> Keywords</td>
                    412: <td><input type="checkbox" name="attr6" value="1" $attrchk[6] /> Language</td>
                    413: <td><input type="checkbox" name="attr7" value="1" $attrchk[7] /> All versions</td>
1.1       www       414: </tr></table>
1.16      harris41  415: <input type="hidden" name="dirPointer" value="on" />
                    416: <input type="hidden" name="acts" value="" />
                    417: <input type="submit" name="attrs" value="Review" />&nbsp;
                    418: <input type="submit" name="attrs" value="Refresh" />
1.7       harris41  419: $closebutton
                    420: $groupimportbutton
1.1       www       421: </form>
                    422: END
                    423: 
1.23      harris41  424: # ----------------- output starting row to the indexed file/directory hierarchy
1.15      harris41  425:         my $titleclr="#ddffff";
1.40      matthew   426: #        $r->print(&initdebug());
                    427: #        $r->print(&writedebug("Omit:@Omit")) if (@Omit);
                    428: #        $r->print(&writedebug("Only:@Only")) if (@Only);
1.46      ng        429:         $r->print("<table width='100\%' border=0><tr><td bgcolor=#777777>\n");
1.45      ng        430: 	$r->print("<table width='100\%' border=0><tr bgcolor=$titleclr>\n");
                    431: 	$r->print("<td $colspan><b>Name</b></td>\n");
                    432: 	$r->print("<td><b>Title</b></td>\n") 
                    433: 	    if ($hash{'display_attrs_0'} == 1);
                    434: 	$r->print("<td align=right><b>Size (bytes) ".
                    435: 		  "</b></td>\n") if ($hash{'display_attrs_1'} == 1);
                    436: 	$r->print("<td><b>Last accessed</b></td>\n") 
1.17      harris41  437: 	    if ($hash{'display_attrs_2'} == 1);
1.45      ng        438: 	$r->print("<td><b>Last modified</b></td>\n")
1.17      harris41  439: 	    if ($hash{'display_attrs_3'} == 1);
1.45      ng        440: 	$r->print("<td><b>Author(s)</b></td>\n")
1.17      harris41  441: 	    if ($hash{'display_attrs_4'} == 1);
1.45      ng        442: 	$r->print("<td><b>Keywords</b></td>\n")
1.17      harris41  443: 	    if ($hash{'display_attrs_5'} == 1);
1.45      ng        444: 	$r->print("<td><b>Language</b></td>\n")
                    445: 	    if ($hash{'display_attrs_6'} == 1);
                    446: 	$r->print('</tr>');
1.5       harris41  447: 
1.23      harris41  448: # ----------------- read in what directories have previously been set to "open"
1.27      harris41  449: 	foreach (keys %hash) {
1.4       harris41  450: 	    if ($_ =~ /^diropen_status_/) {
                    451: 		my $key = $_;
                    452: 		$key =~ s/^diropen_status_//;
                    453: 		$dirs{$key} = $hash{$_};
                    454: 	    }
1.27      harris41  455: 	}
1.4       harris41  456: 
1.2       harris41  457: 	if ($ENV{'form.openuri'}) {  # take care of review and refresh options
                    458: 	    my $uri=$ENV{'form.openuri'};
1.4       harris41  459: 	    if (exists($hash{'diropen_status_'.$uri})) {
                    460: 		my $cursta = $hash{'diropen_status_'.$uri};
1.2       harris41  461: 		$dirs{$uri} = 'open';
1.4       harris41  462: 		$hash{'diropen_status_'.$uri} = 'open';
                    463: 		if ($cursta eq 'open') {
                    464: 		    $dirs{$uri} = 'closed';
                    465: 		    $hash{'diropen_status_'.$uri} = 'closed';
                    466: 		}
1.2       harris41  467: 	    } else {
1.4       harris41  468: 		$hash{'diropen_status_'.$uri} = 'open';
1.2       harris41  469: 		$dirs{$uri} = 'open';
                    470: 	    }
                    471: 	}
1.12      ng        472: 	
                    473: 	my $bredir = $ENV{'form.dirPointer'};
                    474: 	my $toplevel;
1.13      ng        475: 	my $indent = 0;
1.12      ng        476: 	$uri = $uri.'/' if $uri !~ /.*\/$/;
1.17      harris41  477: 
1.45      ng        478: 	if ($bredir ne 'on') {
1.12      ng        479: 	    $hash{'top.level'} = $uri;
                    480: 	    $toplevel = $uri;
1.13      ng        481: 
                    482: 	} else {
                    483: 	    $toplevel = $hash{'top.level'};
                    484: 	}
1.17      harris41  485: 
1.23      harris41  486: # -------------------------------- if not at top level, provide an uplink arrow
1.45      ng        487: 	if ($toplevel ne '/res/'){
1.13      ng        488: 	    my (@uri_com) = split(/\//,$uri);
                    489: 	    pop @uri_com;
                    490: 	    my $upone = join('/',@uri_com);
                    491: 	    my @list = qw (0);
                    492: 	    &display_line ($r,'opened',$upone.'&viewOneUp',0,$upone,@list);
                    493: 	    $indent = 1;
1.12      ng        494: 	}
1.17      harris41  495: 
1.23      harris41  496: # -------- recursively go through all the directories and output as appropriate
1.16      harris41  497: 	&scanDir ($r,$toplevel,$indent,\%hash);
1.12      ng        498: 	
1.23      harris41  499: # ---------------------------- embed hidden information useful for group import
1.8       harris41  500: 	$r->print("<form name='fnum'>");
                    501: 	$r->print("<input type='hidden' name='fnum' value='$fnum'></form>");
1.17      harris41  502: 
1.23      harris41  503: # -------------------------------------------------------------- end the tables
1.45      ng        504: 	$r->print('</table>');
                    505: 	$r->print('</td></tr></table>');
1.17      harris41  506: 
1.23      harris41  507: # --------------------------------------------------- end the output and return
1.45      ng        508: 	$r->print('</body></html>'."\n");
1.4       harris41  509: 	untie(%hash);
1.2       harris41  510:     } else {
1.17      harris41  511: 	$r->print('<html><head></head><body>Unable to tie hash to db '.
                    512: 		  'file</body></html>');
                    513: 	return OK;
1.2       harris41  514:     }
1.1       www       515:     return OK;
                    516: }
1.2       harris41  517: 
1.17      harris41  518: # ----------------------------------------------- recursive scan of a directory
1.2       harris41  519: sub scanDir {
1.16      harris41  520:     my ($r,$startdir,$indent,$hashref)=@_;
1.3       harris41  521:     my ($compuri,$curdir);
                    522:     my $dirptr=16384;
1.1       www       523:     $indent++;
                    524: 
1.2       harris41  525:     my %dupdirs = %dirs;
                    526:     my @list=&get_list($r,$startdir);
                    527:     foreach my $line (@list) {
1.5       harris41  528: 	my ($strip,$dom,$foo,$testdir,$foo)=split(/\&/,$line,5); 
1.4       harris41  529: 	next if $strip =~ /.*\.meta$/;
1.18      ng        530: 	my (@fileparts) = split(/\./,$strip);
1.45      ng        531: 	if ($hash{'display_attrs_7'} != 1) {
1.18      ng        532: 	    if (scalar(@fileparts) >= 3) {
                    533: 		my $fext = pop @fileparts;
                    534: 		my $ov = pop @fileparts;
                    535: 		my $fname = join ('.',@fileparts,$fext);
                    536: 		next if (grep /$fname/,@list and $ov =~ /\d+/);
                    537: 	    }
                    538: 	}
                    539: 
1.45      ng        540: 	if ($dom eq 'domain') {
                    541: 	    $compuri = join('',$strip,'/');  # dom list has /res/<domain name>
1.3       harris41  542: 	    $curdir = $compuri;
1.2       harris41  543: 	} else {
1.17      harris41  544: 	    # user, dir & file have name only, i.e., w/o path
1.45      ng        545: 	    $compuri = join('',$startdir,$strip,'/');
1.3       harris41  546: 	    $curdir = $startdir;
1.2       harris41  547: 	}
1.45      ng        548: 	my $diropen = 'closed';
1.5       harris41  549: 	if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/)) {
1.3       harris41  550: 	    while (my ($key,$val)= each %dupdirs) {
1.5       harris41  551: 		if ($key eq $compuri and $val eq "open") {
1.11      ng        552: 		    $diropen = "opened";
1.5       harris41  553: 		    delete $dupdirs{key},$dirs{$key};
                    554: 		}
1.3       harris41  555: 	    }
1.1       www       556: 	}
1.16      harris41  557: 	&display_line($r,$diropen,$line,$indent,$curdir,$hashref,@list);
1.45      ng        558: 	&scanDir ($r,$compuri,$indent) if $diropen eq 'opened';
1.1       www       559:     }
                    560:     $indent--;
                    561: }
                    562: 
1.17      harris41  563: # --------------- get complete matched list based on the uri (returns an array)
1.1       www       564: sub get_list {
                    565:     my ($r,$uri)=@_;
                    566:     my @list;
1.45      ng        567:     (my $luri = $uri) =~ s/\//_/g;
1.2       harris41  568: 
1.45      ng        569:     if ($ENV{'form.attrs'} eq 'Refresh') {
1.27      harris41  570: 	foreach (keys %hash) {
1.4       harris41  571: 	    delete $hash{$_} if ($_ =~ /^dirlist_files_/);
1.27      harris41  572: 	    }
1.2       harris41  573:     }
                    574: 
1.4       harris41  575:     if ($hash{'dirlist_files'.$luri}) {
                    576: 	@list = split(/\n/,$hash{'dirlist_files_'.$luri});
1.1       www       577:     } else {
1.4       harris41  578: 	@list = &Apache::lonnet::dirlist($uri);
                    579: 	$hash{'dirlist_files_'.$luri} = join('\n',@list);
1.1       www       580:     }
                    581:     return @list=&match_ext($r,@list);
                    582: }
                    583: 
1.40      matthew   584: sub initdebug {
                    585:     return <<ENDJS;
                    586: <script>
                    587: var debugging = true;
                    588: if (debugging) {
                    589:     var debuggingWindow = window.open('','Debug','width=400,height=300',true);
                    590: } 
                    591: 
                    592: function output(text) {
                    593:     if (debugging) {
                    594:         debuggingWindow.document.writeln(text);
                    595:     }
                    596: }
                    597: output("<html><head><title>Debugging Window</title></head><body><pre>");   
                    598: </script>
                    599: ENDJS
                    600: }
                    601: 
                    602: sub writedebug {
                    603:     my $text = shift;
                    604:     return "<script>output('$text');</script>";
                    605: }
                    606: 
1.17      harris41  607: # -------------------- filters out files based on extensions (returns an array)
1.1       www       608: sub match_ext {
                    609:     my ($r,@packlist)=@_;
                    610:     my @trimlist;
                    611:     my $nextline;
                    612:     my @fileext;
                    613:     my $dirptr=16384;
                    614: 
1.2       harris41  615:     foreach my $line (@packlist) {
                    616: 	chomp $line;
                    617: 	$line =~ s/^\/home\/httpd\/html//;
                    618: 	my @unpackline = split (/\&/,$line);
1.45      ng        619: 	next if ($unpackline[0] eq '.');
                    620: 	next if ($unpackline[0] eq '..');
1.2       harris41  621: 	my @filecom = split (/\./,$unpackline[0]);
                    622: 	my $fext = pop(@filecom);
                    623: 	my $fnptr = $unpackline[3]&$dirptr;
                    624:  	if ($fnptr == 0 and $unpackline[3] ne "") {
1.28      harris41  625: 	    my $embstyle = &Apache::loncommon::fileembstyle($fext);
1.25      matthew   626:             push @trimlist,$line if (defined($embstyle) && 
1.32      harris41  627: 				     ($embstyle ne 'hdn' or $fext eq 'meta'));
1.1       www       628: 	} else {
1.2       harris41  629: 	    push @trimlist,$line;
1.1       www       630: 	}
                    631:     }
1.4       harris41  632:     @trimlist = sort (@trimlist);
1.1       www       633:     return @trimlist;
                    634: }
                    635: 
1.17      harris41  636: # ------------------------------- displays one line in appropriate table format
1.23      harris41  637: sub display_line {
1.16      harris41  638:     my ($r,$diropen,$line,$indent,$startdir,$hashref,@list)=@_;
1.1       www       639:     my (@pathfn, $fndir, $fnptr);
                    640:     my $dirptr=16384;
                    641:     my $fileclr="#ffffe6";
1.45      ng        642:     my $iconpath= $r->dir_config('lonIconsURL') . '/';
1.1       www       643: 
                    644:     my @filecom = split (/\&/,$line);
                    645:     my @pathcom = split (/\//,$filecom[0]);
                    646:     my $listname = $pathcom[scalar(@pathcom)-1];
                    647:     my $fnptr = $filecom[3]&$dirptr;
1.4       harris41  648:     my $msg = 'View '.$filecom[0].' resources';
1.45      ng        649:     $msg = 'Close '.$filecom[0].' directory' if $diropen eq 'opened';
1.1       www       650: 
1.45      ng        651:     my $tabtag='</td>';
1.1       www       652:     my $i=0;
                    653: 
1.45      ng        654:     while ($i<=6) {
                    655: 	$tabtag=join('',$tabtag,"<td>&nbsp;</td>")
1.17      harris41  656: 	    if $hash{'display_attrs_'.$i} == 1;
1.1       www       657: 	$i++;
                    658:     }
1.17      harris41  659: 
                    660: # display uplink arrow
1.45      ng        661:     if ($filecom[1] eq 'viewOneUp') {
                    662: 	$r->print("<tr bgcolor=$fileclr>$extrafield");
                    663: 	$r->print("<td valign=bottom>\n");
1.16      harris41  664: 	$r->print ('<form method="post" name="dirpathUP" action="'.$startdir.
                    665: 		   '/" '.
1.17      harris41  666: 		   'onSubmit="return rep_dirpath(\'UP\','.
                    667: 		   'document.forms.fileattr.acts.value)" '.
1.16      harris41  668: 		   'enctype="application/x-www-form-urlencoded"'.
                    669:                    '>'."\n");
1.17      harris41  670: 	$r->print ('<input type=hidden name=openuri value="'.
                    671: 		   $startdir.'">'."\n");
1.16      harris41  672: 	$r->print ('<input type="hidden" name="acts" value="">'."\n");
1.13      ng        673: 	$r->print ('<input src="'.$iconpath.'arrow_up.gif"');
1.17      harris41  674: 	$r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
                    675: 		   "\n");
1.13      ng        676: 	$r->print("Up $tabtag</tr></form>\n");
                    677: 	return OK;
                    678:     }
1.17      harris41  679: 
                    680: # display domain
1.45      ng        681:     if ($filecom[1] eq 'domain') {
1.17      harris41  682: 	$r->print ('<input type="hidden" name="dirPointer" value="on">'."\n")
                    683: 	    if ($ENV{'form.dirPointer'} eq "on");
1.45      ng        684: 	$r->print("<tr bgcolor=$fileclr>$extrafield");
                    685: 	$r->print("<td valign=bottom>");
1.2       harris41  686: 	&begin_form ($r,$filecom[0].'/');
1.3       harris41  687: 	my $anchor = $filecom[0].'/';
                    688: 	$anchor =~ s/\///g;
1.13      ng        689: 	$r->print ('<a name="'.$anchor.'">');
1.16      harris41  690: 	$r->print ('<input type="hidden" name="acts" value="">');
1.17      harris41  691: 	$r->print ('<input src="'.$iconpath.'folder_pointer_'.
                    692: 		   $diropen.'.gif"'); 
                    693: 	$r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
                    694: 		   "\n");
                    695: 	$r->print ('<a href="javascript:gothere(\''.$filecom[0].
                    696: 		   '/\')"><img src="'.$iconpath.'server.gif"');
                    697: 	$r->print (' border="0" /></a>'."\n");
1.1       www       698: 	$r->print("Domain - $listname $tabtag</tr></form>\n");
                    699: 	return OK;
1.17      harris41  700: 
                    701: # display user directory
1.1       www       702:     }
1.45      ng        703:     if ($filecom[1] eq 'user') {
                    704: 	$r->print("<tr bgcolor=$fileclr>$extrafield");
                    705: 	$r->print("<td valign=bottom nowrap>\n");
1.2       harris41  706: 	my $curdir = $startdir.$filecom[0].'/';
1.3       harris41  707: 	my $anchor = $curdir;
                    708: 	$anchor =~ s/\///g;
1.13      ng        709: 	&begin_form ($r,$curdir);
1.17      harris41  710: 	$r->print ('<a name="'.$anchor.'"><img src="'.$iconpath.
                    711: 		   'whitespace1.gif" border="0" />'."\n");
1.16      harris41  712: 	$r->print ('<input type="hidden" name="acts" value="">');
1.17      harris41  713: 	$r->print ('<input src="'.$iconpath.'folder_pointer_'.$diropen.
                    714: 		   '.gif"'); 
                    715: 	$r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
                    716: 		   "\n");
                    717: 	$r->print ('<a href="javascript:gothere(\''.$curdir.'\')"><img src='.
                    718: 		   $iconpath.'quill.gif border="0" name="'.$msg.
                    719: 		   '" height="22" /></a>');
1.13      ng        720: 	$r->print ($listname.$tabtag.'</tr></form>'."\n");
1.1       www       721: 	return OK;
                    722:     }
1.17      harris41  723: 
1.1       www       724: # display file
1.45      ng        725:     if ($fnptr == 0 and $filecom[3] ne '') {
1.47    ! ng        726: 	my $filelink = $startdir.$filecom[0];
        !           727: 	return OK if (!&Apache::lonnet::allowed('bre',$filelink));
1.1       www       728: 	my @file_ext = split (/\./,$listname);
1.25      matthew   729: 	my $curfext = $file_ext[-1];
1.40      matthew   730:         if (@Omit) {
                    731:             foreach (@Omit) { return OK if ($curfext eq $_); }
                    732:         }
                    733:         if (@Only) {
                    734:             my $skip = 1;
                    735:             foreach (@Only) { $skip = 0 if ($curfext eq $_); }
                    736:             return OK if ($skip > 0);
                    737:         }
1.25      matthew   738: 	# Set the icon for the file
1.26      matthew   739: 	my $iconname = "unknown.gif";
1.28      harris41  740: 	my $embstyle = &Apache::loncommon::fileembstyle($curfext);
1.25      matthew   741: 	# The unless conditional that follows is a bit of overkill
                    742: 	$iconname = $curfext.".gif" unless
1.26      matthew   743: 	    (!defined($embstyle) || $embstyle eq 'unk' || $embstyle eq 'hdn');
1.25      matthew   744: 	#
1.45      ng        745: 	$r->print("<tr bgcolor=$fileclr><td nowrap valign='bottom'>");
1.7       harris41  746: 	my $metafile = grep /^$filecom[0]\.meta\&/, @list;
                    747: 	my $title;
                    748:         if ($ENV{'form.catalogmode'} eq 'interactive') {
                    749: 	    $title=$listname;
1.8       harris41  750: 	    $title = &Apache::lonnet::metadata($filelink,'title')
                    751: 		if ($metafile == 1);
1.7       harris41  752: 	    $title=$listname unless $title;
1.42      albertel  753: 	    my $titleesc=HTML::Entities::encode($title);
                    754: 	    $titleesc=~s/\'/\\'/; #' (clean up this spare quote)
1.35      matthew   755:             $r->print("<a href=\"javascript:select_data(\'",
1.34      harris41  756:                       $titleesc,"','",$filelink,"')\">");
1.17      harris41  757: 	    $r->print("<img src='",$iconpath,"select.gif' border='0' /></a>".
                    758: 		      "\n");
1.45      ng        759: 	    $r->print("</td><td valign='bottom' nowrap>");
1.8       harris41  760: 	}
                    761:         elsif ($ENV{'form.catalogmode'} eq 'groupimport') {
                    762: 	    $title=$listname;
                    763: 	    $title = &Apache::lonnet::metadata($filelink,'title')
                    764: 		if ($metafile == 1);
                    765: 	    $title=$listname unless $title;
1.42      albertel  766: 	    my $titleesc=&HTML::Entities::encode($title);
1.8       harris41  767: 	    $r->print("<form name='form$fnum'>\n");
                    768: 	    $r->print("<input type='checkbox' name='filelink"."' ".
1.16      harris41  769: 		      "value='$filelink' onClick='".
                    770: 		      "javascript:queue(\"form$fnum\")' ");
                    771: 	    if ($hash{'store_'.$filelink}) {
                    772: 		$r->print("checked");
                    773: 	    }
                    774: 	    $r->print(">\n");
1.8       harris41  775: 	    $r->print("<input type='hidden' name='title"."' ".
1.42      albertel  776: 		      "value='$titleesc'>\n");
1.8       harris41  777: 	    $r->print("</form>\n");
1.45      ng        778: 	    $r->print("</td><td valign='bottom' nowrap>");
1.16      harris41  779: 	    $hash{"pre_${fnum}_link"}=$filelink;
1.42      albertel  780: 	    $hash{"pre_${fnum}_title"}=$titleesc;
1.8       harris41  781:   	    $fnum++;
1.7       harris41  782: 	}
1.4       harris41  783: 
1.12      ng        784: 	if ($indent > 0 and $indent < 11) {
1.17      harris41  785: 	    $r->print("<img src=",$iconpath,"whitespace",$indent,
                    786: 		      ".gif border='0' />\n");
1.11      ng        787: 	} elsif ($indent >0) {
1.4       harris41  788: 	    my $ten = int($indent/10.);
                    789: 	    my $rem = $indent%10.0;
                    790: 	    my $count = 0;
                    791: 	    while ($count < $ten) {
1.17      harris41  792: 		$r->print("<img src=",$iconpath,
                    793: 			  "whitespace10.gif border='0' />\n");
1.1       www       794: 	    $count++;
1.4       harris41  795: 	    }
1.17      harris41  796: 	    $r->print("<img src=",$iconpath,"whitespace",$rem,
                    797: 		      ".gif border='0' />\n") if $rem > 0;
1.1       www       798: 	}
1.4       harris41  799: 
1.25      matthew   800: 	$r->print("<img src=$iconpath$iconname border='0' />\n");
1.17      harris41  801: 	$r->print (" <a href=\"javascript:openWindow('".$filelink.
                    802: 		   "', 'metadatafile', '450', '500', 'no', 'yes')\";".
                    803: 		   " TARGET=_self>$listname</a> ");
                    804: 
                    805: 	$r->print (" (<a href=\"javascript:openWindow('".$filelink.
                    806: 		   ".meta', 'metadatafile', '400', '450', 'no', 'yes')\"; ".
                    807: 		   "TARGET=_self>metadata</a>) ") if ($metafile == 1);
1.2       harris41  808: 
1.7       harris41  809: 	$r->print("</td>\n");
1.45      ng        810: 	if ($hash{'display_attrs_0'} == 1) {
                    811: 	    my $title = &Apache::lonnet::metadata($filelink,'title')
                    812: 		if ($metafile == 1);
                    813: 	    $r->print('<td valign=bottom> '.($title eq '' ? '&nbsp;' : $title).
                    814: 		      ' </td>'."\n");
                    815: 	}
                    816: 	$r->print('<td align=right valign=bottom> ',
1.17      harris41  817: 		  $filecom[8]," </td>\n") 
1.45      ng        818: 	    if $hash{'display_attrs_1'} == 1;
                    819: 	$r->print('<td valign=bottom> '.
1.17      harris41  820: 		  (localtime($filecom[9]))." </td>\n") 
1.45      ng        821: 	    if $hash{'display_attrs_2'} == 1;
                    822: 	$r->print('<td valign=bottom> '.
1.17      harris41  823: 		  (localtime($filecom[10]))." </td>\n") 
1.45      ng        824: 	    if $hash{'display_attrs_3'} == 1;
1.2       harris41  825: 
1.45      ng        826: 	if ($hash{'display_attrs_4'} == 1) {
1.17      harris41  827: 	    my $author = &Apache::lonnet::metadata($filelink,'author')
                    828: 		if ($metafile == 1);
1.45      ng        829: 	    $r->print('<td valign=bottom> '.($author eq '' ? '&nbsp;' : $author).
1.17      harris41  830: 		      " </td>\n");
1.2       harris41  831: 	}
1.45      ng        832: 	if ($hash{'display_attrs_5'} == 1) {
1.17      harris41  833: 	    my $keywords = &Apache::lonnet::metadata($filelink,'keywords')
                    834: 		if ($metafile == 1);
1.45      ng        835: 	    # $keywords = '&nbsp;' if (!$keywords);
                    836: 	    $r->print('<td valign=bottom> '.($keywords eq '' ? '&nbsp;' : $keywords).
1.17      harris41  837: 		      " </td>\n");
1.2       harris41  838: 	}
1.45      ng        839: 	if ($hash{'display_attrs_6'} == 1) {
1.17      harris41  840: 	    my $lang = &Apache::lonnet::metadata($filelink,'language')
                    841: 		if ($metafile == 1);
1.28      harris41  842: 	    $lang = &Apache::loncommon::languagedescription($lang);
1.45      ng        843: 	    $r->print('<td valign=bottom> '.($lang eq '' ? '&nbsp;' : $lang).
1.17      harris41  844: 		      " </td>\n");
1.2       harris41  845: 	}
1.1       www       846: 	$r->print("</tr>\n");
                    847:     }
1.17      harris41  848: 
1.2       harris41  849: # -- display directory
1.1       www       850:     if ($fnptr == $dirptr) {
                    851: 	my @file_ext = split (/\./,$listname);
                    852: 	my $curfext = $file_ext[scalar(@file_ext)-1];
1.2       harris41  853: 	my $curdir = $startdir.$filecom[0].'/';
1.3       harris41  854: 	my $anchor = $curdir;
                    855: 	$anchor =~ s/\///g;
1.45      ng        856: 	$r->print("<tr bgcolor=$fileclr>$extrafield<td valign=bottom>");
1.2       harris41  857: 	&begin_form ($r,$curdir);
1.4       harris41  858: 	my $indentm1 = $indent-1;
1.11      ng        859: 	if ($indentm1 < 11 and $indentm1 > 0) {
1.17      harris41  860: 	    $r->print("<img src=",$iconpath,"whitespace",$indentm1,
                    861: 		      ".gif border='0' />\n");
1.4       harris41  862: 	} else {
                    863: 	    my $ten = int($indentm1/10.);
                    864: 	    my $rem = $indentm1%10.0;
                    865: 	    my $count = 0;
                    866: 	    while ($count < $ten) {
1.17      harris41  867: 		$r->print ("<img src=",$iconpath
                    868: 			   ,"whitespace10.gif border='0' />\n");
1.12      ng        869: 		$count++;
1.4       harris41  870: 	    }
1.17      harris41  871: 	    $r->print ("<img src=",$iconpath,"whitespace",$rem,
                    872: 		       ".gif border='0' />\n") if $rem > 0;
1.1       www       873: 	}
1.16      harris41  874: 	$r->print ('<input type="hidden" name="acts" value="">');
1.17      harris41  875: 	$r->print ('<a name="'.$anchor.'"><input src="'.$iconpath.
                    876: 		   'folder_pointer_'.$diropen.'.gif"');
                    877: 	$r->print (' name="'.$msg.'" height="22" type="image" border="0">'.
                    878: 		   "\n");
                    879: 	$r->print ('<a href="javascript:gothere(\''.$curdir.'\')"><img src="'.
                    880: 		   $iconpath.'folder_'.$diropen.'.gif" border="0" /></a>'.
                    881: 		   "\n");
1.13      ng        882: 	$r->print ("$listname$tabtag</tr></form>\n");
1.1       www       883:     }
1.2       harris41  884: 
1.1       www       885: }
                    886: 
1.14      harris41  887: # ------------------- prints the beginning of a form for directory or file link
1.1       www       888: sub begin_form {
                    889:     my ($r,$uri) = @_;
1.3       harris41  890:     my $anchor = $uri;
                    891:     $anchor =~ s/\///g;
1.17      harris41  892:     $r->print ('<form method="post" name="dirpath'.$dnum.'" action="'.$uri.
                    893: 	       '#'.$anchor.
                    894: 	       '" onSubmit="return rep_dirpath(\''.$dnum.'\''.
                    895: 	       ',document.forms.fileattr.acts.value)" '.
1.16      harris41  896: 	       'enctype="application/x-www-form-urlencoded">'."\n");
1.17      harris41  897:     $r->print ('<input type="hidden" name="openuri" value="'.$uri.'">'.
                    898: 	       "\n");
                    899:     $r->print ('<input type="hidden" name="dirPointer" value="on">'."\n");
1.16      harris41  900:     $dnum++;
1.17      harris41  901: }
                    902: 
                    903: # --------- settings whenever the user causes the indexer window to be launched
                    904: sub start_fresh_session {
                    905:     delete $hash{'mode_catalog'};
1.35      matthew   906:     delete $hash{'form_mode'};
                    907:     delete $hash{'form_form'};
                    908:     delete $hash{'form_element'};
1.40      matthew   909:     delete $hash{'form_omit'};
                    910:     delete $hash{'form_only'};
1.27      harris41  911:     foreach (keys %hash) {
1.17      harris41  912: 	if ($_ =~ /^pre_/) {
                    913: 	    delete $hash{$_};
                    914: 	}
                    915: 	if ($_ =~ /^store/) {
                    916: 	    delete $hash{$_};
                    917: 	}
1.27      harris41  918:     }
1.1       www       919: }
                    920: 
1.35      matthew   921: # ------------------------------------------------------------------- setvalues
                    922: sub setvalues {
                    923:     # setvalues is used in registerurl to synchronize the database
                    924:     # hash and environment hashes
                    925:     my ($H1,$h1key,$H2,$h2key) =@_;
                    926:     #
                    927:     if (exists $H2->{$h2key}) {
                    928: 	$H1->{$h1key} = $H2->{$h2key};
                    929:     } elsif (exists $H1->{$h1key}) {
                    930: 	$H2->{$h2key} = $H1->{$h1key};
                    931:     } 
                    932: }
                    933: 
1.1       www       934: 1;
1.23      harris41  935: 
                    936: =head1 NAME
                    937: 
                    938: Apache::lonindexer - mod_perl module for cross server filesystem browsing
                    939: 
                    940: =head1 SYNOPSIS
                    941: 
                    942: Invoked by /etc/httpd/conf/srm.conf:
                    943: 
                    944:  <LocationMatch "^/res.*/$">
                    945:  SetHandler perl-script
                    946:  PerlHandler Apache::lonindexer
                    947:  </LocationMatch>
                    948: 
                    949: =head1 INTRODUCTION
                    950: 
                    951: This module enables a scheme of browsing across a cross server.
                    952: 
                    953: This is part of the LearningOnline Network with CAPA project
                    954: described at http://www.lon-capa.org.
                    955: 
                    956: =head1 BEGIN SUBROUTINE
                    957: 
                    958: This routine is only run once after compilation.
                    959: 
                    960: =over 4
                    961: 
                    962: =item *
                    963: 
                    964: Initializes %language hash table.
                    965: 
                    966: =back
                    967: 
                    968: =head1 HANDLER SUBROUTINE
                    969: 
                    970: This routine is called by Apache and mod_perl.
                    971: 
                    972: =over 4
                    973: 
                    974: =item *
                    975: 
                    976: read in machine configuration variables
                    977: 
                    978: =item *
                    979: 
                    980: see if called from an interactive mode
                    981: 
                    982: =item *
                    983: 
                    984: refresh environment with user database values (in %hash)
                    985: 
                    986: =item *
                    987: 
                    988: define extra fields and buttons in case of special mode
                    989: 
                    990: =item *
                    991: 
                    992: set catalogmodefunctions to have extra needed javascript functionality
                    993: 
                    994: =item *
                    995: 
                    996: print header
                    997: 
                    998: =item *
                    999: 
                   1000: evaluate actions from previous page (both cumulatively and chronologically)
                   1001: 
                   1002: =item *
                   1003: 
                   1004: output title
                   1005: 
                   1006: =item *
                   1007: 
                   1008: get state of file attributes to be showing
                   1009: 
                   1010: =item *
                   1011: 
                   1012: output state of file attributes to be showing
                   1013: 
                   1014: =item *
                   1015: 
                   1016: output starting row to the indexed file/directory hierarchy
                   1017: 
                   1018: =item *
                   1019: 
                   1020: read in what directories have previously been set to "open"
                   1021: 
                   1022: =item *
                   1023: 
                   1024: if not at top level, provide an uplink arrow
                   1025: 
                   1026: =item *
                   1027: 
                   1028: recursively go through all the directories and output as appropriate
                   1029: 
                   1030: =item *
                   1031: 
                   1032: information useful for group import
                   1033: 
                   1034: =item *
                   1035: 
                   1036: end the tables
                   1037: 
                   1038: =item *
                   1039: 
                   1040: end the output and return
                   1041: 
                   1042: =back
                   1043: 
                   1044: =head1 OTHER SUBROUTINES
                   1045: 
                   1046: =over 4
                   1047: 
                   1048: =item *
                   1049: 
                   1050: scanDir - recursive scan of a directory
                   1051: 
                   1052: =item *
                   1053: 
                   1054: get_list - get complete matched list based on the uri (returns an array)
                   1055: 
                   1056: =item *
                   1057: 
                   1058: match_ext - filters out files based on extensions (returns an array)
                   1059: 
                   1060: =item *
                   1061: 
                   1062: display_line - displays one line in appropriate table format
                   1063: 
                   1064: =item *
                   1065: 
                   1066: begin_form - prints the beginning of a form for directory or file link
                   1067: 
                   1068: =item *
                   1069: 
                   1070: start_fresh_session - settings whenever the user causes the indexer window
                   1071: to be launched
                   1072: 
                   1073: =back
                   1074: 
                   1075: =cut

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