version 1.51, 2000/10/26 15:29:17
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version 1.55, 2000/10/30 22:45:21
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Line 66
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Line 66
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# 08/22,08/28,08/31,09/01,09/02,09/04,09/05,09/25,09/28,09/30 Gerd Kortemeyer |
# 08/22,08/28,08/31,09/01,09/02,09/04,09/05,09/25,09/28,09/30 Gerd Kortemeyer |
# 10/04 Gerd Kortemeyer |
# 10/04 Gerd Kortemeyer |
# 10/04 Guy Albertelli |
# 10/04 Guy Albertelli |
# 10/06,10/09,10/10,10/11,10/14,10/20,10/23,10/25,10/26 Gerd Kortemeyer |
# 10/06,10/09,10/10,10/11,10/14,10/20,10/23,10/25,10/26,10/27,10/28,10/29, |
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# 10/30 Gerd Kortemeyer |
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package Apache::lonnet; |
package Apache::lonnet; |
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Line 498 sub coursedescription {
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Line 499 sub coursedescription {
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if ($chome ne 'no_host') { |
if ($chome ne 'no_host') { |
my $rep=reply("dump:$cdomain:$cnum:environment",$chome); |
my $rep=reply("dump:$cdomain:$cnum:environment",$chome); |
if ($rep ne 'con_lost') { |
if ($rep ne 'con_lost') { |
my %cachehash=(); |
my $normalid=$courseid; |
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$normalid=~s/\//\_/g; |
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my %envhash=(); |
my %returnhash=('home' => $chome, |
my %returnhash=('home' => $chome, |
'domain' => $cdomain, |
'domain' => $cdomain, |
'num' => $cnum); |
'num' => $cnum); |
Line 507 sub coursedescription {
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Line 510 sub coursedescription {
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$name=&unescape($name); |
$name=&unescape($name); |
$value=&unescape($value); |
$value=&unescape($value); |
$returnhash{$name}=$value; |
$returnhash{$name}=$value; |
if ($name eq 'description') { |
$envhash{'course.'.$normalid.'.'.$name}=$value; |
$cachehash{$courseid}=$value; |
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} |
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} split(/\&/,$rep); |
} split(/\&/,$rep); |
$returnhash{'url'}='/res/'.declutter($returnhash{'url'}); |
$returnhash{'url'}='/res/'.declutter($returnhash{'url'}); |
$returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'. |
$returnhash{'fn'}=$perlvar{'lonDaemons'}.'/tmp/'. |
$ENV{'user.name'}.'_'.$cdomain.'_'.$cnum; |
$ENV{'user.name'}.'_'.$cdomain.'_'.$cnum; |
put ('nohist_coursedescriptions',%cachehash); |
$envhash{'course.'.$normalid.'.last_cache'}=time; |
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&appenv(%envhash); |
return %returnhash; |
return %returnhash; |
} |
} |
} |
} |
Line 714 sub eget {
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Line 716 sub eget {
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sub allowed { |
sub allowed { |
my ($priv,$uri)=@_; |
my ($priv,$uri)=@_; |
$uri=~s/^\/res//; |
$uri=&declutter($uri); |
$uri=~s/^\///; |
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# Free bre access to adm resources |
# Free bre access to adm and meta resources |
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if (($uri=~/^adm\//) && ($priv eq 'bre')) { |
if ((($uri=~/^adm\//) || ($uri=~/\.meta$/)) && ($priv eq 'bre')) { |
return 'F'; |
return 'F'; |
} |
} |
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# Gather priviledges over system and domain |
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my $thisallowed=''; |
my $thisallowed=''; |
if ($ENV{'user.priv./'}=~/$priv\&([^\:]*)/) { |
my $statecond=0; |
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my $courseprivid=''; |
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# Course |
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if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'}=~/$priv\&([^\:]*)/) { |
$thisallowed.=$1; |
$thisallowed.=$1; |
} |
} |
if ($ENV{'user.priv./'.(split(/\//,$uri))[0].'/'}=~/$priv\&([^\:]*)/) { |
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# Domain |
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if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'.(split(/\//,$uri))[0].'/'} |
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=~/$priv\&([^\:]*)/) { |
$thisallowed.=$1; |
$thisallowed.=$1; |
} |
} |
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# Full access at system or domain level? Exit. |
# Course: uri itself is a course |
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if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'.$uri} |
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=~/$priv\&([^\:]*)/) { |
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$thisallowed.=$1; |
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} |
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# Full access at system, domain or course-wide level? Exit. |
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if ($thisallowed=~/F/) { |
if ($thisallowed=~/F/) { |
return 'F'; |
return 'F'; |
} |
} |
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# The user does not have full access at system or domain level |
# If this is generating or modifying users, exit with special codes |
# Course level access control |
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# uri itself refering to a course? |
if (':csu:cdc:ccc:cin:cta:cep:ccr:cst:cad:cli:cau:cdg:'=~/\:$priv\:/) { |
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return $thisallowed; |
if ($uri=~/\.course$/) { |
} |
if ($ENV{'user.priv./'.$uri}=~/$priv\&([^\:]*)/) { |
# |
$thisallowed.=$1; |
# Gathered so far: system, domain and course wide priviledges |
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# |
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# Course: See if uri or referer is an individual resource that is part of |
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# the course |
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if ($ENV{'request.course.id'}) { |
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$courseprivid=$ENV{'request.course.id'}; |
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if ($ENV{'request.course.sec'}) { |
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$courseprivid.='/'.$ENV{'request.course.sec'}; |
} |
} |
# Full access on course level? Exit. |
$courseprivid=~s/\_/\//; |
if ($thisallowed=~/F/) { |
my $checkreferer=1; |
return 'F'; |
my @uriparts=split(/\//,$uri); |
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my $filename=$uriparts[$#uriparts]; |
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my $pathname=$uri; |
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$pathname=~s/\/$filename$//; |
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if ($ENV{'acc.res.'.$ENV{'request.course.id'}.'.'.$pathname}=~ |
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/\&$filename\:([\d\|]+)\&/) { |
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$statecond=$1; |
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if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'.$courseprivid} |
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=~/$priv\&([^\:]*)/) { |
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$thisallowed.=$1; |
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$checkreferer=0; |
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} |
} |
} |
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# uri is refering to an individual resource; user needs to be in a course |
if (($ENV{'HTTP_REFERER'}) && ($checkreferer)) { |
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my $refuri=$ENV{'HTTP_REFERER'}; |
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$refuri=~s/^http\:\/\/$ENV{'request.host'}//i; |
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$refuri=&declutter($refuri); |
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my @uriparts=split(/\//,$refuri); |
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my $filename=$uriparts[$#uriparts]; |
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my $pathname=$refuri; |
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$pathname=~s/\/$filename$//; |
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my @filenameparts=split(/\./,$uri); |
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if (&fileembstyle($filenameparts[$#filenameparts]) ne 'ssi') { |
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if ($ENV{'acc.res.'.$ENV{'request.course.id'}.'.'.$pathname}=~ |
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/\&$filename\:([\d\|]+)\&/) { |
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my $refstatecond=$1; |
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if ($ENV{'user.priv.'.$ENV{'request.role'}.'./'.$courseprivid} |
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=~/$priv\&([^\:]*)/) { |
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$thisallowed.=$1; |
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$uri=$refuri; |
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$statecond=$refstatecond; |
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} |
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} |
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} |
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} |
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} |
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} else { |
# |
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# Gathered now: all priviledges that could apply, and condition number |
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# |
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# |
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# Full or no access? |
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# |
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unless(defined($ENV{'request.course.id'})) { |
if ($thisallowed=~/F/) { |
return '1'; |
return 'F'; |
} |
} |
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# Get access priviledges for course |
unless ($thisallowed) { |
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return ''; |
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} |
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if ($ENV{'user.priv./'.$ENV{'request.course.id'}}=~/$priv\&([^\:]*)/) { |
# Restrictions exist, deal with them |
$thisallowed.=$1; |
# |
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# C:according to course preferences |
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# R:according to resource settings |
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# L:unless locked |
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# X:according to user session state |
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# |
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# Possibly locked functionality, check all courses |
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# Locks might take effect only after 10 minutes cache expiration for other |
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# courses, and 2 minutes for current course |
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my $envkey; |
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if ($thisallowed=~/L/) { |
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foreach $envkey (keys %ENV) { |
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if ($envkey=~/^user\.role\.(st|ta)\.([^\.]*)/) { |
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my $courseid=$2; |
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my $roleid=$1.'.'.$2; |
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my $expiretime=600; |
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if ($ENV{'request.role'} eq $roleid) { |
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$expiretime=120; |
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} |
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my ($cdom,$cnum,$csec)=split(/\//,$courseid); |
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my $prefix='course.'.$cdom.'_'.$cnum.'.'; |
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if ((time-$ENV{$prefix.'last_cache'})>$expiretime) { |
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&coursedescription($courseid); |
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} |
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if (($ENV{$prefix.'res.'.$uri.'.lock.sections'}=~/\,$csec\,/) |
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|| ($ENV{$prefix.'res.'.$uri.'.lock.sections'} eq 'all')) { |
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if ($ENV{$prefix.'res.'.$uri.'.lock.expire'}>time) { |
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&log('Locked by res: '.$priv.' for '.$uri.' due to '. |
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$cdom.'/'.$cnum.'/'.$csec.' expire '. |
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$ENV{$prefix.'priv.'.$priv.'.lock.expire'}); |
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return ''; |
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} |
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} |
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if (($ENV{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,$csec\,/) |
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|| ($ENV{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) { |
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if ($ENV{'priv.'.$priv.'.lock.expire'}>time) { |
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&log('Locked by priv: '.$priv.' for '.$uri.' due to '. |
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$cdom.'/'.$cnum.'/'.$csec.' expire '. |
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$ENV{$prefix.'priv.'.$priv.'.lock.expire'}); |
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return ''; |
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} |
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} |
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} |
} |
} |
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} |
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# |
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# Rest of the restrictions depend on selected course |
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# |
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# See if resource or referer is part of this course |
unless ($ENV{'request.course.id'}) { |
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return '1'; |
my @uriparts=split(/\//,$uri); |
} |
my $urifile=$uriparts[$#uriparts]; |
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$urifile=~/\.(\w+)$/; |
# |
my $uritype=$1; |
# Now user is definitely in a course |
$#uriparts--; |
# |
my $uripath=join('/',@uriparts); |
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my $uricond=-1; |
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if ($ENV{'acc.res.'.$ENV{'request.course.id'}.'.'.$uripath}=~ |
# Course preferences |
/\&$urifile\:(\d+)\&/) { |
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$uricond=$1; |
if ($thisallowed=~/C/) { |
} elsif (($fe{$uritype} eq 'emb') || ($fe{$uritype} eq 'img')) { |
my $rolecode=(split(/\./,$ENV{'request.role'}))[0]; |
my $refuri=$ENV{'HTTP_REFERER'}; |
if ($ENV{'course.'.$ENV{'request.course.id'}.'.'.$priv.'.roles.denied'} |
$refuri=~s/^\/res//; |
=~/\,$rolecode\,/) { |
$refuri=~s/^\///; |
&log('Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '. |
@uriparts=split(/\//,$refuri); |
$ENV{'request.course.id'}); |
$urifile=$uriparts[$#uriparts]; |
return ''; |
$#uriparts--; |
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$uripath=join('/',@uriparts); |
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if ($ENV{'acc.res.'.$ENV{'request.course.id'}.'.'.$uripath}=~ |
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/\&$urifile\:(\d+)\&/) { |
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$uricond=$1; |
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} |
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} |
} |
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} |
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if ($uricond>=0) { |
# Resource preferences |
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# The resource is part of the course |
if ($thisallowed=~/R/) { |
# If user had full access on course level, go ahead |
my $rolecode=(split(/\./,$ENV{'request.role'}))[0]; |
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my $filename=$perlvar{'lonDocRoot'}.'/res/'.$uri.'.meta'; |
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if (-e $filename) { |
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my @content; |
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{ |
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my $fh=Apache::File->new($filename); |
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@content=<$fh>; |
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} |
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if (join('',@content)=~ |
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/\<roledeny[^\>]*\>[^\<]*$rolecode[^\<]*\<\/roledeny\>/) { |
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&log('Denied by role: '.$priv.' for '.$uri.' as '.$rolecode); |
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return ''; |
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if ($thisallowed=~/F/) { |
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return 'F'; |
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} |
} |
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} |
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} |
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# Restricted by state? |
# Restricted by state? |
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if ($thisallowed=~/X/) { |
if ($thisallowed=~/X/) { |
if (&condval($uricond)) { |
if (&condval($statecond)) { |
return '2'; |
return '2'; |
} else { |
} else { |
return ''; |
return ''; |
} |
} |
} |
} |
} |
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} |
return 'F'; |
return $thisallowed; |
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} |
} |
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# ---------------------------------------------------------- Refresh State Info |
# ---------------------------------------------------------- Refresh State Info |
Line 1000 sub directcondval {
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Line 1116 sub directcondval {
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sub condval { |
sub condval { |
my $condidx=shift; |
my $condidx=shift; |
my $result=0; |
my $result=0; |
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my $allpathcond=''; |
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map { |
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if (defined($ENV{'acc.cond.'.$ENV{'request.course.id'}.'.'.$_})) { |
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$allpathcond.= |
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'('.$ENV{'acc.cond.'.$ENV{'request.course.id'}.'.'.$_}.')|'; |
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} |
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} split(/\|/,$condidx); |
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$allpathcond=~s/\|$//; |
if ($ENV{'request.course.id'}) { |
if ($ENV{'request.course.id'}) { |
if (defined($ENV{'acc.cond.'.$ENV{'request.course.id'}.'.'.$condidx})) { |
if ($allpathcond) { |
my $operand='|'; |
my $operand='|'; |
my @stack; |
my @stack; |
map { |
map { |
Line 1024 sub condval {
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Line 1148 sub condval {
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$result=$result>$new?$result:$new; |
$result=$result>$new?$result:$new; |
} |
} |
} |
} |
} ($ENV{'acc.cond.'.$ENV{'request.course.id'}.'.'.$condidx}=~ |
} ($allpathcond=~/(\d+|\(|\)|\&|\|)/g); |
/(\d+|\(|\)|\&|\|)/g); |
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} |
} |
} |
} |
return $result; |
return $result; |