version 1.1, 2000/08/30 11:10:23
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version 1.4, 2000/09/14 20:10:39
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Line 4
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Line 4
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# (TeX Content Handler |
# (TeX Content Handler |
# |
# |
# 05/29/00,05/30 Gerd Kortemeyer) |
# 05/29/00,05/30 Gerd Kortemeyer) |
# 08/30 Gerd Kortemeyer |
# 08/30,08/31,09/06,09/14 Gerd Kortemeyer |
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package Apache::lonpage; |
package Apache::lonpage; |
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Line 13 use Apache::Constants qw(:common :http);
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Line 13 use Apache::Constants qw(:common :http);
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use Apache::lonnet(); |
use Apache::lonnet(); |
use GDBM_File; |
use GDBM_File; |
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# -------------------------------------------------------------- Module Globals |
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my %hash; |
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my @rows; |
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my %ssibody=(); |
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my %ssibgcolor=(); |
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my %ssitext=(); |
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my %ssilink=(); |
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my %ssivlink=(); |
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my %ssialink=(); |
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my %cellemb=(); |
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# ------------------------------------------------------------ Build page table |
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sub tracetable { |
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my ($sofar,$rid,$beenhere)=@_; |
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my $further=$sofar; |
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unless ($beenhere=~/\&$rid\&/) { |
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$beenhere.=$rid.'&'; |
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if (defined($hash{'is_map_'.$rid})) { |
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if ((defined($hash{'map_start_'.$hash{'src_'.$rid}})) && |
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(defined($hash{'map_finish_'.$hash{'src_'.$rid}}))) { |
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my $frid=$hash{'map_finish_'.$hash{'src_'.$rid}}; |
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$sofar= |
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&tracetable($sofar,$hash{'map_start_'.$hash{'src_'.$rid}}, |
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'&'.$frid.'&'); |
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$sofar++; |
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if ($hash{'src_'.$frid}) { |
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my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$frid}); |
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if (($brepriv eq '2') || ($brepriv eq 'F')) { |
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if (defined($rows[$sofar])) { |
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$rows[$sofar].='&'.$frid; |
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} else { |
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$rows[$sofar]=$frid; |
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} |
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} |
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} |
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} |
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} else { |
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$sofar++; |
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if ($hash{'src_'.$rid}) { |
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my $brepriv=&Apache::lonnet::allowed('bre',$hash{'src_'.$rid}); |
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if (($brepriv eq '2') || ($brepriv eq 'F')) { |
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if (defined($rows[$sofar])) { |
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$rows[$sofar].='&'.$rid; |
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} else { |
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$rows[$sofar]=$rid; |
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} |
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} |
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} |
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} |
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if (defined($hash{'to_'.$rid})) { |
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map { |
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my $now=&tracetable($sofar,$hash{'goesto_'.$_},$beenhere); |
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if ($now>$further) { $further=$now; } |
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} split(/\,/,$hash{'to_'.$rid}); |
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} |
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} |
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return $further; |
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} |
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sub cell { |
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my ($r,$colspan,$rid)=@_; |
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$r->print('<td colspan="'.$colspan.'">'); |
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$r->print($hash{'src_'.$rid}); |
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$r->print('</td>'); |
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} |
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# ================================================================ Main Handler |
# ================================================================ Main Handler |
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sub handler { |
sub handler { |
my $r=shift; |
my $r=shift; |
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# ----------------------------------------------------------- Set document type |
# ------------------------------------------- Set document type for header only |
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if ($ENV{'browser.mathml'}) { |
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$r->content_type('text/xml'); |
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} else { |
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$r->content_type('text/html'); |
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} |
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$r->send_http_header; |
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return OK if $r->header_only; |
if ($r->header_only) { |
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if ($ENV{'browser.mathml'}) { |
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$r->content_type('text/xml'); |
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} else { |
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$r->content_type('text/html'); |
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} |
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$r->send_http_header; |
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return OK; |
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} |
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my $requrl=$r->uri; |
my $requrl=$r->uri; |
# ----------------------------------------------------------------- Tie db file |
# ----------------------------------------------------------------- Tie db file |
if ($ENV{'request.course.fn'}) { |
if ($ENV{'request.course.fn'}) { |
my $fn=$ENV{'request.course.fn'}; |
my $fn=$ENV{'request.course.fn'}; |
if (-e "$fn.db") { |
if (-e "$fn.db") { |
my %hash; |
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if (tie(%hash,'GDBM_File',"$fn.db",&GDBM_WRCREAT,0640)) { |
if (tie(%hash,'GDBM_File',"$fn.db",&GDBM_WRCREAT,0640)) { |
# ------------------------------------------------------------------- Hash tied |
# ------------------------------------------------------------------- Hash tied |
my $firstres=$hash{'map_start_'.$requrl}; |
my $firstres=$hash{'map_start_'.$requrl}; |
Line 42 sub handler {
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Line 112 sub handler {
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if (($firstres) && ($lastres)) { |
if (($firstres) && ($lastres)) { |
# ----------------------------------------------------------------- Render page |
# ----------------------------------------------------------------- Render page |
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$r->print("<h2>All is cool.</h2>"); |
@rows=(); |
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&tracetable(0,$firstres,'&'.$lastres.'&'); |
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if ($hash{'src_'.$lastres}) { |
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my $brepriv= |
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&Apache::lonnet::allowed('bre',$hash{'src_'.$lastres}); |
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if (($brepriv eq '2') || ($brepriv eq 'F')) { |
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$rows[$#rows+1]=''.$lastres; |
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} |
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} |
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my $i; |
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my $j; |
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my $maxcols=-1; |
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# --------------------------------------------- Get SSI output, post parameters |
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for ($i=0;$i<=$#rows;$i++) { |
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if ($rows[$i]) { |
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my @colcont=split(/\&/,$rows[$i]); |
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$maxcols=$#colcont>$maxcols?$#colcont:$maxcols; |
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map { |
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my $src=$hash{'src_'.$_}; |
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$src=~/\.\w+$/; |
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$cellemb{$_}=Apache::lonnet::fileembstyle($1); |
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if ($cellemb{$_} eq 'ssi') { |
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# --------------------------------------------------------- This is an SSI cell |
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# ---------------------------------------------------------------- End SSI cell |
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} |
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} @colcont; |
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} |
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} |
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if ($maxcols<0) { |
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$r->content_type('text/html'); |
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$r->send_http_header; |
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$r->print('<html><body>Empty page.</body></html>'); |
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} else { |
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# ------------------------------------------------------------------ Build page |
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$maxcols++; |
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$r->content_type('text/html'); |
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$r->send_http_header; |
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$r->print('<html><body>'); |
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$r->print('<table cols="'.$maxcols.'" rows="'. |
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$#rows.'" border=1>'); |
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for ($i=2;$i<=$#rows;$i++) { |
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$r->print("\n<tr>"); |
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my @colcont=split(/\&/,$rows[$i]); |
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my $avespan=int($maxcols/($#colcont+1)); |
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my $lastspan=$maxcols-$avespan*$#colcont; |
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for ($j=0;$j<$#colcont;$j++) { |
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&cell($r,$avespan,$colcont[$j]); |
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} |
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&cell($r,$lastspan,$colcont[$#colcont]); |
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$r->print('</tr>'); |
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} |
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$r->print("\n</table>"); |
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$r->print('</body></html>'); |
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# -------------------------------------------------------------------- End page |
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} |
# ------------------------------------------------------------- End render page |
# ------------------------------------------------------------- End render page |
} else { |
} else { |
$r->print("<h2>Page undefined.</h2>"); |
$r->content_type('text/html'); |
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$r->send_http_header; |
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$r->print('<html><body>Page undefined.</body></html>'); |
} |
} |
# ------------------------------------------------------------------ Untie hash |
# ------------------------------------------------------------------ Untie hash |
unless (untie(%hash)) { |
unless (untie(%hash)) { |