loncom/interface/lonindexer.pm - view

File: [LON-CAPA] / loncom / interface / lonindexer.pm
Revision 1.4: download - view: text, annotated - select for diffs
Mon May 21 15:22:48 2001 UTC (23 years, 1 month ago) by harris41
Branches: MAIN
CVS tags: HEAD

fix a bug in meta file link
consolidate all tmp files into one db file
create whitespace gif files based on indent space

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