loncom/interface/lonindexer.pm - view

File: [LON-CAPA] / loncom / interface / lonindexer.pm
Revision 1.3: download - view: text, annotated - select for diffs
Sat May 19 14:31:45 2001 UTC (23 years, 1 month ago) by harris41
Branches: MAIN
CVS tags: HEAD

add anchors to domain/directory link
add test conditions to scandir

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