loncom/interface/lonindexer.pm - view

File: [LON-CAPA] / loncom / interface / lonindexer.pm
Revision 1.6: download - view: text, annotated - select for diffs
Tue May 29 12:24:17 2001 UTC (23 years, 1 month ago) by harris41
Branches: MAIN
CVS tags: HEAD

remembers attribute settings
fix bug in refresh option

1: # The LearningOnline Network with CAPA 2: # Directory Indexer 3: # (Login Screen 4: # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14 Gerd Kortemeyer) 5: # 11/23 Gerd Kortemeyer 6: # 07/20-08/04 H.K. Ng 7: # 8: # 05/9-05/19/2001 H. K. Ng 9: # 05/21/2001 H. K. Ng 10: # 05/23/2001 H. K. Ng 11: # 12: package Apache::lonindexer; 13: 14: use strict; 15: use Apache::lonnet(); 16: use Apache::Constants qw(:common); 17: use Apache::File; 18: use GDBM_File; 19: 20: my %hash; 21: my %dirs; 22: my %language; 23: 24: sub BEGIN { 25: my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/language.tab'); 26: map { 27: $_=~/(\w+)\s+([\w\s\-]+)/; 28: $language{$1}=$2; 29: } <$fh>; 30: } 31: 32: sub handler { 33: my $r = shift; 34: $r->content_type('text/html'); 35: $r->send_http_header; 36: return OK if $r->header_only; 37: 38: my $iconpath= $r->dir_config('lonIconsURL'); 39: my $domain = $r->dir_config('lonDefDomain'); 40: my $role = $r->dir_config('lonRole'); 41: my $loadlim = $r->dir_config('lonLoadLim'); 42: my $servadm = $r->dir_config('lonAdmEMail'); 43: my $sysadm = $r->dir_config('lonSysEMail'); 44: my $lonhost = $r->dir_config('lonHostID'); 45: my $tabdir = $r->dir_config('lonTabDir'); 46: 47: # ---------------------------------------------------------------- Print Header 48: $r->print(<<ENDHEADER); 49: <html> 50: <head> 51: <title>The LearningOnline Network With CAPA Directory Browser</title> 52: 53: <SCRIPT language="javascript"> 54: function openWindow(url, wdwName, w, h, toolbar,scrollbar) { 55: var options = "width=" + w + ",height=" + h + ","; 56: options += "resizable=yes,scrollbars="+scrollbar+",status=no,"; 57: options += "menubar=no,toolbar="+toolbar+",location=no,directories=no"; 58: var newWin = window.open(url, wdwName, options); 59: newWin.focus(); 60: } 61: </SCRIPT> 62: 63: </head> 64: <body bgcolor="#FFFFFF"> 65: ENDHEADER 66: 67: my $line; 68: my (@attrchk,@openpath); 69: my $uri=$r->uri; 70: my $iconpath="/res/adm/pages/indexericons/"; 71: 72: $r->print("<h2><font color=\"\#888888\">The LearningOnline With CAPA Network Directory Browser</font></h2>\n"); 73: 74: my $diropen = "/home/httpd/perl/tmp/$domain\_$ENV{'user.name'}_indexer.db"; 75: 76: if (tie(%hash,'GDBM_File',$diropen,&GDBM_WRCREAT,0640)) { 77: 78: if ($ENV{'form.attrs'} ne "") { 79: for (my $i=0; $i<=5; $i++) { 80: delete $hash{'display_attrs_'.$i}; 81: if ($ENV{'form.attr'.$i} == 1) { 82: $attrchk[$i] = "checked"; 83: $hash{'display_attrs_'.$i} = 1; 84: } 85: } 86: } else { 87: for (my $i=0; $i<=5; $i++) { 88: $attrchk[$i] = "checked" if $hash{'display_attrs_'.$i} == 1; 89: } 90: } 91: $r->print(<<END); 92: <b><font color="#666666">Display file attributes</font></b><br> 93: <form method="post" name="fileattr" action="$uri" enctype="application/x-www-form-urlencoded"> 94: <table border=0><tr> 95: <td><input type=checkbox name=attr0 value="1" $attrchk[0]> Size</td> 96: <td><input type=checkbox name=attr1 value="1" $attrchk[1]> Last access</td> 97: <td><input type=checkbox name=attr2 value="1" $attrchk[2]> Last modified</td> 98: </tr><tr> 99: <td><input type=checkbox name=attr3 value="1" $attrchk[3]> Author</td> 100: <td><input type=checkbox name=attr4 value="1" $attrchk[4]> Keywords</td> 101: <td><input type=checkbox name=attr5 value="1" $attrchk[5]> Language</td> 102: </tr></table> 103: <input type="submit" name="attrs" value="Review">  104: <input type="submit" name="attrs" value="Refresh"> 105: </form> 106: END 107: 108: my $titleclr="#ddffff"; 109: $r->print("<table border=0><tr><td bgcolor=#eeeeee>\n"); 110: $r->print("<table border=0><tr>\n"); 111: $r->print("<td bgcolor=$titleclr><b>Name</b></td>\n"); 112: $r->print("<td bgcolor=$titleclr align=right><b>Size (bytes) </b></td>\n") if ($hash{'display_attrs_0'} == 1); 113: $r->print("<td bgcolor=$titleclr><b>Last accessed</b></td>\n") if ($hash{'display_attrs_1'} == 1); 114: $r->print("<td bgcolor=$titleclr><b>Last modified</b></td>\n") if ($hash{'display_attrs_2'} == 1); 115: $r->print("<td bgcolor=$titleclr><b>Author(s)</b></td>\n") if ($hash{'display_attrs_3'} == 1); 116: $r->print("<td bgcolor=$titleclr><b>Keywords</b></td>\n") if ($hash{'display_attrs_4'} == 1); 117: $r->print("<td bgcolor=$titleclr><b>Language</b></td>\n") if ($hash{'display_attrs_5'} == 1); 118: $r->print("</tr>"); 119: 120: map { 121: if ($_ =~ /^diropen_status_/) { 122: my $key = $_; 123: $key =~ s/^diropen_status_//; 124: $dirs{$key} = $hash{$_}; 125: } 126: } keys %hash; 127: 128: if ($ENV{'form.openuri'}) { # take care of review and refresh options 129: my $uri=$ENV{'form.openuri'}; 130: if (exists($hash{'diropen_status_'.$uri})) { 131: my $cursta = $hash{'diropen_status_'.$uri}; 132: $dirs{$uri} = 'open'; 133: $hash{'diropen_status_'.$uri} = 'open'; 134: if ($cursta eq 'open') { 135: $dirs{$uri} = 'closed'; 136: $hash{'diropen_status_'.$uri} = 'closed'; 137: } 138: } else { 139: $hash{'diropen_status_'.$uri} = 'open'; 140: $dirs{$uri} = 'open'; 141: } 142: } 143: 144: my $toplevel = "/res/"; 145: my $indent = 0; 146: &scanDir ($r,$toplevel,$indent); 147: 148: $r->print("</table>"); 149: $r->print("</td></tr></table>"); 150: $r->print("</body></html>\n"); 151: untie(%hash); 152: } else { 153: $r->print("Unable to tie hash to db file"); 154: } 155: return OK; 156: } 157: 158: 159: # --------------------recursive scan of a directory 160: sub scanDir { 161: my ($r,$startdir,$indent)=@_; 162: my ($compuri,$curdir); 163: my $dirptr=16384; 164: $indent++; 165: 166: my %dupdirs = %dirs; 167: my @list=&get_list($r,$startdir); 168: foreach my $line (@list) { 169: my ($strip,$dom,$foo,$testdir,$foo)=split(/\&/,$line,5); 170: next if $strip =~ /.*\.meta$/; 171: if ($dom eq "domain") { 172: $compuri = join('',$strip,"/"); # domain list has /res/<domain name> 173: $curdir = $compuri; 174: } else { 175: $compuri = join('',$startdir,$strip,"/"); # user, dir & file having name only, i.e., w/o path 176: $curdir = $startdir; 177: } 178: my $diropen = 0; 179: if (($dirptr&$testdir) or ($dom =~ /^(domain|user)$/)) { 180: while (my ($key,$val)= each %dupdirs) { 181: if ($key eq $compuri and $val eq "open") { 182: $diropen = 1; 183: delete $dupdirs{key},$dirs{$key}; 184: } 185: } 186: } 187: &display_line($r,$diropen,$line,$indent,$curdir,@list); 188: &scanDir ($r,$compuri,$indent) if $diropen == 1; 189: } 190: $indent--; 191: } 192: 193: # ----------------- get complete matched list based on the uri ------ 194: sub get_list { 195: my ($r,$uri)=@_; 196: my @list; 197: my $luri = $uri; 198: $luri =~ s/\//_/g; 199: 200: if ($ENV{'form.attrs'} eq "Refresh") { 201: map { 202: delete $hash{$_} if ($_ =~ /^dirlist_files_/); 203: } keys %hash; 204: } 205: 206: if ($hash{'dirlist_files'.$luri}) { 207: @list = split(/\n/,$hash{'dirlist_files_'.$luri}); 208: } else { 209: @list = &Apache::lonnet::dirlist($uri); 210: $hash{'dirlist_files_'.$luri} = join('\n',@list); 211: } 212: return @list=&match_ext($r,@list); 213: } 214: 215: #-------------------------- filters out files based on extensions 216: sub match_ext { 217: my ($r,@packlist)=@_; 218: my @trimlist; 219: my $nextline; 220: my @fileext; 221: my $dirptr=16384; 222: 223: my $tabdir = $r->dir_config('lonTabDir'); 224: my $fn = $tabdir."/filetypes.tab"; 225: if (-e $fn) { 226: my $FH=Apache::File->new($fn); 227: my @content=<$FH>; 228: foreach my $line (@content) { 229: (my $ext,my $foo) = split /\s+/,$line; 230: push @fileext,$ext; 231: } 232: } 233: foreach my $line (@packlist) { 234: chomp $line; 235: $line =~ s/^\/home\/httpd\/html//; 236: my @unpackline = split (/\&/,$line); 237: next if ($unpackline[0] eq "."); 238: next if ($unpackline[0] eq ".."); 239: my @filecom = split (/\./,$unpackline[0]); 240: my $fext = pop(@filecom); 241: my $fnptr = $unpackline[3]&$dirptr; 242: if ($fnptr == 0 and $unpackline[3] ne "") { 243: foreach my $nextline (@fileext) { 244: push @trimlist,$line if $nextline eq $fext; 245: } 246: } else { 247: push @trimlist,$line; 248: } 249: } 250: @trimlist = sort (@trimlist); 251: return @trimlist; 252: } 253: 254: #------------------- displays one line in appropriate table format 255: sub display_line{ 256: my ($r,$diropen,$line,$indent,$startdir,@list)=@_; 257: my (@pathfn, $fndir, $fnptr); 258: my $dirptr=16384; 259: my $fileclr="#ffffe6"; 260: my $iconpath="/res/adm/pages/indexericons/"; 261: 262: my @filecom = split (/\&/,$line); 263: my @pathcom = split (/\//,$filecom[0]); 264: my $listname = $pathcom[scalar(@pathcom)-1]; 265: my $fnptr = $filecom[3]&$dirptr; 266: my $msg = 'View '.$filecom[0].' resources'; 267: $msg = 'Close '.$filecom[0].' directory' if $diropen == 1; 268: 269: my $tabtag="</td>"; 270: my $i=0; 271: 272: while ($i<=5) { 273: # my $key="form.attr".$i; 274: # $tabtag=join('',$tabtag,"<td bgcolor=",$fileclr,"> </td>") if $ENV{$key} == 1; 275: $tabtag=join('',$tabtag,"<td bgcolor=",$fileclr,"> </td>") if $hash{'display_attrs_'.$i} == 1; 276: $i++; 277: } 278: if ($filecom[1] eq "domain") { 279: $r->print("<tr>"); 280: $r->print("<td bgcolor=$fileclr valign=bottom>"); 281: &begin_form ($r,$filecom[0].'/'); 282: my $anchor = $filecom[0].'/'; 283: $anchor =~ s/\///g; 284: $r->print ("<a name=\"".$anchor."\">\n<input src=\"".$iconpath."comp.blue.gif\""); 285: $r->print (" name=\"$msg\" height=\"22\" type=\"image\" border=\"0\">\n"); 286: $r->print("Domain - $listname $tabtag</tr></form>\n"); 287: return OK; 288: } 289: if ($filecom[1] eq "user") { 290: $r->print("<tr>"); 291: $r->print("<td bgcolor=$fileclr valign=bottom>\n"); 292: my $curdir = $startdir.$filecom[0].'/'; 293: &begin_form ($r,$curdir); 294: my $anchor = $curdir; 295: $anchor =~ s/\///g; 296: # $r->print ("<a name=\"$anchor\">\n<img src=",$iconpath,"white_space_20_22.gif border=0>\n"); 297: $r->print ("<a name=\"$anchor\">\n<img src=",$iconpath,"whitespace1.gif border=0>\n"); 298: $r->print ("<input src=\"$iconpath"); 299: $r->print ("folder_pointer_closed.gif\"") if $diropen == 0; 300: $r->print ("folder_pointer_opened.gif\"") if $diropen == 1; 301: $r->print (" name=\"$msg\" height=\"22\" type=\"image\" border=\"0\">\n"); 302: $r->print ("<img src=",$iconpath,"quill.gif border=0>\n"); 303: $r->print ("$listname $tabtag</tr></form>\n"); 304: return OK; 305: } 306: # display file 307: if ($fnptr == 0 and $filecom[3] ne "") { 308: my @file_ext = split (/\./,$listname); 309: my $curfext = $file_ext[scalar(@file_ext)-1]; 310: my $filelink = $startdir.$filecom[0]; 311: $r->print("<tr><td bgcolor=$fileclr>"); 312: 313: if ($indent < 11) { 314: $r->print("<img src=",$iconpath,"whitespace",$indent,".gif border=0>\n"); 315: } else { 316: my $ten = int($indent/10.); 317: my $rem = $indent%10.0; 318: my $count = 0; 319: while ($count < $ten) { 320: $r->print("<img src=",$iconpath,"whitespace10.gif border=0>\n"); 321: $count++; 322: } 323: $r->print("<img src=",$iconpath,"whitespace",$rem,".gif border=0>\n") if $rem > 0; 324: } 325: 326: $r->print("<img src=$iconpath$curfext.gif border=0>\n"); 327: $r->print(" <a href=$filelink>",$listname,"</a>\n"); 328: my $metafile = grep /^$filecom[0]\.meta\&/, @list; 329: 330: $r->print (" (<a href=\"javascript:openWindow('".$filelink.".meta', 'metadatafile', '400', '450', 'no', 'yes')\"; TARGET=_self>metadata</a>) ") if ($metafile == 1); 331: 332: $r=>print("</td>\n"); 333: # $r->print("<td bgcolor=$fileclr align=right valign=bottom> ",$filecom[8]," </td>\n") if $ENV{'form.attr0'} == 1; 334: $r->print("<td bgcolor=$fileclr align=right valign=bottom> ",$filecom[8]," </td>\n") if $hash{'display_attrs_0'} == 1; 335: $r->print("<td bgcolor=$fileclr valign=bottom> ".(localtime($filecom[9]))." </td>\n") if $hash{'display_attrs_1'} == 1; 336: $r->print("<td bgcolor=$fileclr valign=bottom> ".(localtime($filecom[10]))." </td>\n") if $hash{'display_attrs_2'} == 1; 337: 338: if ($hash{'display_attrs_3'} == 1) { 339: my $author = &Apache::lonnet::metadata($filelink,'author') if ($metafile == 1); 340: $author = ' ' if (!$author); 341: $r->print("<td bgcolor=$fileclr valign=bottom> ".$author." </td>\n"); 342: } 343: if ($hash{'display_attrs_4'} == 1) { 344: my $keywords = &Apache::lonnet::metadata($filelink,'keywords') if ($metafile == 1); 345: $keywords = ' ' if (!$keywords); 346: $r->print("<td bgcolor=$fileclr valign=bottom> ".$keywords." </td>\n"); 347: } 348: if ($hash{'display_attrs_5'} == 1) { 349: my $lang = &Apache::lonnet::metadata($filelink,'language') if ($metafile == 1); 350: $lang = $language{$lang}; 351: $lang = ' ' if (!$lang); 352: $r->print("<td bgcolor=$fileclr valign=bottom> ".$lang." </td>\n"); 353: } 354: $r->print("</tr>\n"); 355: } 356: # -- display directory 357: if ($fnptr == $dirptr) { 358: my @file_ext = split (/\./,$listname); 359: my $curfext = $file_ext[scalar(@file_ext)-1]; 360: my $curdir = $startdir.$filecom[0].'/'; 361: my $anchor = $curdir; 362: $anchor =~ s/\///g; 363: $r->print("<tr><td bgcolor=$fileclr valign=bottom>"); 364: &begin_form ($r,$curdir); 365: my $indentm1 = $indent-1; 366: if ($indentm1 < 11) { 367: $r->print("<img src=",$iconpath,"whitespace",$indentm1,".gif border=0>\n"); 368: } else { 369: my $ten = int($indentm1/10.); 370: my $rem = $indentm1%10.0; 371: my $count = 0; 372: while ($count < $ten) { 373: $r->print("<img src=",$iconpath,"whitespace10.gif border=0>\n"); 374: $count++; 375: } 376: $r->print("<img src=",$iconpath,"whitespace",$rem,".gif border=0>\n") if $rem > 0; 377: } 378: $r->print ("<a name=\"$anchor\">\n<input src=\"$iconpath"); 379: $r->print ("folder_pointer_closed.gif\"") if $diropen == 0; 380: $r->print ("folder_pointer_opened.gif\"") if $diropen == 1; 381: $r->print (" name=\"$msg\" height=\"22\" type=\"image\" border=\"0\">\n"); 382: $r->print("<img src=",$iconpath,"folder_closed.gif border=0>\n") if $diropen == 0; 383: $r->print("<img src=",$iconpath,"folder_opened.gif border=0>\n") if $diropen == 1; 384: $r->print("$listname $tabtag</tr></form>\n"); 385: } 386: 387: } 388: 389: #---------------------prints the beginning of a form for directory or file link 390: sub begin_form { 391: my ($r,$uri) = @_; 392: my $anchor = $uri; 393: $anchor =~ s/\///g; 394: $r->print ("<form method=\"post\" name=\"dirpath\" action=\"/res/\#$anchor\" enctype=\"application/x-www-form-urlencoded\">\n"); 395: $r->print ("<input type=hidden name=openuri value=\"$uri\">\n"); 396: 397: # for (my $i=0; $i<=5; $i++) { 398: # $r->print ("<input type=hidden name=attr$i value=\"1\">\n") if $ENV{'form.attr'.$i} == 1; 399: # } 400: } 401: 402: 1; 403: __END__