version 1.78, 2004/05/11 06:28:23
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version 1.82, 2004/11/10 21:30:48
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Line 332 sub simplify {
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Line 332 sub simplify {
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sub traceroute { |
sub traceroute { |
my ($sofar,$rid,$beenhere,$encflag,$hdnflag)=@_; |
my ($sofar,$rid,$beenhere,$encflag,$hdnflag)=@_; |
$sofar=simplify($sofar); |
my $newsofar=$sofar=simplify($sofar); |
unless ($beenhere=~/\&$rid\&/) { |
unless ($beenhere=~/\&$rid\&/) { |
$beenhere.=$rid.'&'; |
$beenhere.=$rid.'&'; |
if ($hdnflag) { |
my ($mapid,$resid)=split(/\./,$rid); |
$hiddenurl{$rid}=1; |
my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},$resid,$hash{'src_'.$rid}); |
} |
my $hidden=&Apache::lonnet::EXT('resource.0.hiddenresource',$symb); |
if ($encflag) { |
if ($hdnflag || lc($hidden) eq 'yes') { $hiddenurl{$rid}=1; } |
$encurl{$rid}=1; |
my $encrypt=&Apache::lonnet::EXT('resource.0.encrypturl',$symb); |
} |
if ($encflag || lc($encrypt) eq 'yes') { $encurl{$rid}=1; } |
if (($retfurl eq '') && ($hash{'src_'.$rid}) |
if (($retfurl eq '') && ($hash{'src_'.$rid}) |
&& ($hash{'src_'.$rid}!~/\.sequence$/)) { |
&& ($hash{'src_'.$rid}!~/\.sequence$/)) { |
my ($mapid,$resid)=split(/\./,$rid); |
$retfurl=$hash{'src_'.$rid}.(($hash{'src_'.$rid}=~/\?/)?'&':'?'). |
$retfurl=$hash{'src_'.$rid}. |
'symb='.$symb; |
(($hash{'src_'.$rid}=~/\?/)?'&':'?').'symb='. |
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&Apache::lonnet::symbclean( |
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&Apache::lonnet::declutter($hash{'map_id_'.$mapid}). |
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'___'.$resid.'___'. |
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&Apache::lonnet::declutter($hash{'src_'.$rid})); |
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} |
} |
if (defined($hash{'conditions_'.$rid})) { |
if (defined($hash{'conditions_'.$rid})) { |
$hash{'conditions_'.$rid}=simplify( |
$hash{'conditions_'.$rid}=simplify( |
Line 357 sub traceroute {
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Line 352 sub traceroute {
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} else { |
} else { |
$hash{'conditions_'.$rid}=$sofar; |
$hash{'conditions_'.$rid}=$sofar; |
} |
} |
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$newsofar=$hash{'conditions_'.$rid}; |
if (defined($hash{'is_map_'.$rid})) { |
if (defined($hash{'is_map_'.$rid})) { |
if (defined($hash{'map_start_'.$hash{'src_'.$rid}})) { |
if (defined($hash{'map_start_'.$hash{'src_'.$rid}})) { |
&traceroute($sofar,$hash{'map_start_'.$hash{'src_'.$rid}},'&', |
$sofar=$newsofar= |
$encflag || $encurl{$rid}, |
&traceroute($sofar, |
$hdnflag || $hiddenurl{$rid}); |
$hash{'map_start_'.$hash{'src_'.$rid}},'&', |
if (defined($hash{'map_finish_'.$hash{'src_'.$rid}})) { |
$encflag || $encurl{$rid}, |
$sofar= |
$hdnflag || $hiddenurl{$rid}); |
$hash{'conditions_'.$hash{'map_finish_'.$hash{'src_'.$rid}}}; |
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} |
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} |
} |
} |
} |
if (defined($hash{'to_'.$rid})) { |
if (defined($hash{'to_'.$rid})) { |
Line 380 sub traceroute {
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Line 374 sub traceroute {
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.$hash{'undercond_'.$_}.'. '; |
.$hash{'undercond_'.$_}.'. '; |
} |
} |
} |
} |
&traceroute($further,$hash{'goesto_'.$_},$beenhere,$encflag,$hdnflag); |
$newsofar=&traceroute($further,$hash{'goesto_'.$_},$beenhere, |
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$encflag,$hdnflag); |
} |
} |
} |
} |
} |
} |
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return $newsofar; |
} |
} |
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# ------------------------------ Cascading conditions, quick access, parameters |
# ------------------------------ Cascading conditions, quick access, parameters |
Line 468 sub accinit {
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Line 464 sub accinit {
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my $courseuri=$uri; |
my $courseuri=$uri; |
$courseuri=~s/^\/res\///; |
$courseuri=~s/^\/res\///; |
&Apache::lonnet::delenv('(acc\.|httpref\.)'); |
&Apache::lonnet::delenv('(acc\.|httpref\.)'); |
&Apache::lonnet::appenv(%acchash, |
&Apache::lonnet::appenv(%acchash); |
"request.course.id" => $short, |
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"request.course.fn" => $fn, |
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"request.course.uri" => $courseuri); |
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} |
} |
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# ---------------- Selectively delete from randompick maps and hidden url parms |
# ---------------- Selectively delete from randompick maps and hidden url parms |
Line 572 sub readmap {
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Line 565 sub readmap {
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$hash{'is_map_0.0'}=1; |
$hash{'is_map_0.0'}=1; |
loadmap($uri); |
loadmap($uri); |
if (defined($hash{'map_start_'.$uri})) { |
if (defined($hash{'map_start_'.$uri})) { |
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&Apache::lonnet::appenv("request.course.id" => $short, |
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"request.course.fn" => $fn, |
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"request.course.uri" => $uri); |
&traceroute('0',$hash{'map_start_'.$uri},'&'); |
&traceroute('0',$hash{'map_start_'.$uri},'&'); |
&accinit($uri,$short,$fn); |
&accinit($uri,$short,$fn); |
&hiddenurls(); |
&hiddenurls(); |
Line 584 sub readmap {
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Line 580 sub readmap {
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} |
} |
# ---------------------------------------------------------------- Encrypt URLs |
# ---------------------------------------------------------------- Encrypt URLs |
foreach (keys %encurl) { |
foreach (keys %encurl) { |
$hash{'src_'.$_}=&Apache::lonenc::encrypted($hash{'src_'.$_}); |
# $hash{'src_'.$_}=&Apache::lonenc::encrypted($hash{'src_'.$_}); |
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$hash{'encrypted_'.$_}=1; |
} |
} |
# ----------------------------------------------- Close hashes to finally store |
# ----------------------------------------------- Close hashes to finally store |
# --------------------------------- Routine must pass this point, no early outs |
# --------------------------------- Routine must pass this point, no early outs |
Line 622 sub readmap {
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Line 619 sub readmap {
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# ------------------------------------------------------- Evaluate state string |
# ------------------------------------------------------- Evaluate state string |
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sub evalstate { |
sub evalstate { |
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my $fn=$ENV{'request.course.fn'}.'.state'; |
my $fn=$ENV{'request.course.fn'}.'.state'; |
my $state='2'; |
my $state=''; |
if (-e $fn) { |
if (-e $fn) { |
my @conditions=(); |
my @conditions=(); |
{ |
{ |
my $fh=Apache::File->new($fn); |
my $fh=Apache::File->new($fn); |
@conditions=<$fh>; |
@conditions=<$fh>; |
} |
} |
my $safeeval = new Safe; |
my $safeeval = new Safe; |
my $safehole = new Safe::Hole; |
my $safehole = new Safe::Hole; |
$safeeval->permit("entereval"); |
$safeeval->permit("entereval"); |
$safeeval->permit(":base_math"); |
$safeeval->permit(":base_math"); |
$safeeval->deny(":base_io"); |
$safeeval->deny(":base_io"); |
$safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT'); |
$safehole->wrap(\&Apache::lonnet::EXT,$safeeval,'&EXT'); |
foreach (@conditions) { |
foreach my $line (@conditions) { |
my $line=$_; |
chomp($line); |
chomp($line); |
my ($condition,$weight)=split(/\:/,$line); |
my ($condition,$weight)=split(/\:/,$_); |
if ($safeeval->reval($condition)) { |
if ($safeeval->reval($condition)) { |
if ($weight eq 'force') { |
if ($weight eq 'force') { |
$state.='3'; |
$state.='3'; |
} else { |
} else { |
$state.='2'; |
$state.='2'; |
} |
} |
} else { |
} else { |
if ($weight eq 'stop') { |
if ($weight eq 'stop') { |
$state.='0'; |
$state.='0'; |
} else { |
} else { |
$state.='1'; |
$state.='1'; |
} |
} |
} |
} |
} |
} |
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} |
} |
&Apache::lonnet::appenv('user.state.'.$ENV{'request.course.id'} => $state); |
&Apache::lonnet::appenv('user.state.'.$ENV{'request.course.id'} => $state); |
return $state; |
return $state; |