version 1.1281, 2015/04/13 16:30:32
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version 1.1282, 2015/04/15 04:11:17
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Line 4444 my $cachedkey='';
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Line 4444 my $cachedkey='';
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# The cached times for this user |
# The cached times for this user |
my %cachedtimes=(); |
my %cachedtimes=(); |
# When this was last done |
# When this was last done |
my $cachedtime=(); |
my $cachedtime=''; |
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sub load_all_first_access { |
sub load_all_first_access { |
my ($uname,$udom)=@_; |
my ($uname,$udom)=@_; |
Line 4506 sub set_first_access {
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Line 4506 sub set_first_access {
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return 'already_set'; |
return 'already_set'; |
} |
} |
} |
} |
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# --------------------------------------------- Set Expire Date for Spreadsheet |
# --------------------------------------------- Set Expire Date for Spreadsheet |
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sub expirespread { |
sub expirespread { |
Line 7199 sub constructaccess {
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Line 7200 sub constructaccess {
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return ''; |
return ''; |
} |
} |
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# ----------------------------------------------------------- Content Blocking |
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{ |
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# Caches for faster Course Contents display where content blocking |
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# is in operation (i.e., interval param set) for timed quiz. |
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# |
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# User for whom data are being temporarily cached. |
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my $cacheduser=''; |
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# Cached blockers for this user (a hash of blocking items). |
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my %cachedblockers=(); |
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# When the data were last cached. |
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my $cachedlast=''; |
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sub load_all_blockers { |
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my ($uname,$udom,$blocks)=@_; |
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if (($uname ne '') && ($udom ne '')) { |
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if (($cacheduser eq $uname.':'.$udom) && |
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(abs($cachedlast-time)<5)) { |
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return; |
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} |
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} |
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$cachedlast=time; |
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$cacheduser=$uname.':'.$udom; |
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%cachedblockers = &get_commblock_resources($blocks); |
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} |
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sub get_comm_blocks { |
sub get_comm_blocks { |
my ($cdom,$cnum) = @_; |
my ($cdom,$cnum) = @_; |
if ($cdom eq '' || $cnum eq '') { |
if ($cdom eq '' || $cnum eq '') { |
Line 7219 sub get_comm_blocks {
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Line 7246 sub get_comm_blocks {
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return %commblocks; |
return %commblocks; |
} |
} |
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sub has_comm_blocking { |
sub get_commblock_resources { |
my ($priv,$symb,$uri,$blocks) = @_; |
my ($blocks) = @_; |
return unless ($env{'request.course.id'}); |
my %blockers = (); |
return unless ($priv eq 'bre'); |
return %blockers unless ($env{'request.course.id'}); |
return if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/); |
return %blockers if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/); |
my %commblocks; |
my %commblocks; |
if (ref($blocks) eq 'HASH') { |
if (ref($blocks) eq 'HASH') { |
%commblocks = %{$blocks}; |
%commblocks = %{$blocks}; |
} else { |
} else { |
%commblocks = &get_comm_blocks(); |
%commblocks = &get_comm_blocks(); |
} |
} |
return unless (keys(%commblocks) > 0); |
return %blockers unless (keys(%commblocks) > 0); |
if (!$symb) { $symb=&symbread($uri,1); } |
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my ($map,$resid,undef)=&decode_symb($symb); |
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my %tocheck = ( |
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maps => $map, |
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resources => $symb, |
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); |
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my @blockers; |
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my $now = time; |
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my $navmap = Apache::lonnavmaps::navmap->new(); |
my $navmap = Apache::lonnavmaps::navmap->new(); |
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return %blockers unless (ref($navmap)); |
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my $now = time; |
foreach my $block (keys(%commblocks)) { |
foreach my $block (keys(%commblocks)) { |
if ($block =~ /^(\d+)____(\d+)$/) { |
if ($block =~ /^(\d+)____(\d+)$/) { |
my ($start,$end) = ($1,$2); |
my ($start,$end) = ($1,$2); |
Line 7247 sub has_comm_blocking {
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Line 7268 sub has_comm_blocking {
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if (ref($commblocks{$block}{'blocks'}) eq 'HASH') { |
if (ref($commblocks{$block}{'blocks'}) eq 'HASH') { |
if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') { |
if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') { |
if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') { |
if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') { |
if ($commblocks{$block}{'blocks'}{'docs'}{'maps'}{$map}) { |
if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) { |
unless (grep(/^\Q$block\E$/,@blockers)) { |
$blockers{$block}{maps} = $commblocks{$block}{'blocks'}{'docs'}{'maps'}; |
push(@blockers,$block); |
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} |
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} |
} |
} |
} |
if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') { |
if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') { |
if ($commblocks{$block}{'blocks'}{'docs'}{'resources'}{$symb}) { |
if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) { |
unless (grep(/^\Q$block\E$/,@blockers)) { |
$blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'}; |
push(@blockers,$block); |
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} |
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} |
} |
} |
} |
} |
} |
Line 7268 sub has_comm_blocking {
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Line 7285 sub has_comm_blocking {
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my @to_test; |
my @to_test; |
if (ref($commblocks{$block}{'blocks'}) eq 'HASH') { |
if (ref($commblocks{$block}{'blocks'}) eq 'HASH') { |
if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') { |
if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') { |
my $check_interval; |
my @interval; |
if (&check_docs_block($commblocks{$block}{'blocks'}{'docs'},\%tocheck)) { |
my $type = 'map'; |
my @interval; |
if ($item eq 'course') { |
my $type = 'map'; |
$type = 'course'; |
if ($item eq 'course') { |
@interval=&EXT("resource.0.interval"); |
$type = 'course'; |
} else { |
@interval=&EXT("resource.0.interval"); |
if ($item =~ /___\d+___/) { |
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$type = 'resource'; |
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@interval=&EXT("resource.0.interval",$item); |
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if (ref($navmap)) { |
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my $res = $navmap->getBySymb($item); |
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push(@to_test,$res); |
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} |
} else { |
} else { |
if ($item =~ /___\d+___/) { |
my $mapsymb = &symbread($item,1); |
$type = 'resource'; |
if ($mapsymb) { |
@interval=&EXT("resource.0.interval",$item); |
if (ref($navmap)) { |
if (ref($navmap)) { |
my $mapres = $navmap->getBySymb($mapsymb); |
my $res = $navmap->getBySymb($item); |
@to_test = $mapres->retrieveResources($mapres,undef,0,0,0,1); |
push(@to_test,$res); |
foreach my $res (@to_test) { |
} |
my $symb = $res->symb(); |
} else { |
next if ($symb eq $mapsymb); |
my $mapsymb = &symbread($item,1); |
if ($symb ne '') { |
if ($mapsymb) { |
@interval=&EXT("resource.0.interval",$symb); |
if (ref($navmap)) { |
if ($interval[1] eq 'map') { |
my $mapres = $navmap->getBySymb($mapsymb); |
last; |
@to_test = $mapres->retrieveResources($mapres,undef,0,0,0,1); |
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foreach my $res (@to_test) { |
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my $symb = $res->symb(); |
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next if ($symb eq $mapsymb); |
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if ($symb ne '') { |
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@interval=&EXT("resource.0.interval",$symb); |
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if ($interval[1] eq 'map') { |
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last; |
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} |
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} |
} |
} |
} |
} |
} |
} |
} |
} |
} |
} |
} |
if ($interval[0] =~ /\d+/) { |
} |
my $first_access; |
if ($interval[0] =~ /^\d+$/) { |
if ($type eq 'resource') { |
my $first_access; |
$first_access=&get_first_access($interval[1],$item); |
if ($type eq 'resource') { |
} elsif ($type eq 'map') { |
$first_access=&get_first_access($interval[1],$item); |
$first_access=&get_first_access($interval[1],undef,$item); |
} elsif ($type eq 'map') { |
} else { |
$first_access=&get_first_access($interval[1],undef,$item); |
$first_access=&get_first_access($interval[1]); |
} else { |
} |
$first_access=&get_first_access($interval[1]); |
if ($first_access) { |
} |
my $timesup = $first_access+$interval[0]; |
if ($first_access) { |
if ($timesup > $now) { |
my $timesup = $first_access+$interval[0]; |
foreach my $res (@to_test) { |
if ($timesup > $now) { |
if ($res->is_problem()) { |
my $activeblock; |
if ($res->completable()) { |
foreach my $res (@to_test) { |
unless (grep(/^\Q$block\E$/,@blockers)) { |
if ($res->completable()) { |
push(@blockers,$block); |
$activeblock = 1; |
} |
last; |
last; |
} |
} |
} |
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if ($activeblock) { |
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if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') { |
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if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) { |
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$blockers{$block}{'maps'} = $commblocks{$block}{'blocks'}{'docs'}{'maps'}; |
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} |
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} |
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if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') { |
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if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) { |
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$blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'}; |
} |
} |
} |
} |
} |
} |
Line 7333 sub has_comm_blocking {
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Line 7356 sub has_comm_blocking {
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} |
} |
} |
} |
} |
} |
return @blockers; |
return %blockers; |
} |
} |
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sub check_docs_block { |
sub has_comm_blocking { |
my ($docsblock,$tocheck) =@_; |
my ($priv,$symb,$uri,$blocks) = @_; |
if ((ref($docsblock) ne 'HASH') || (ref($tocheck) ne 'HASH')) { |
my @blockers; |
return; |
return unless ($env{'request.course.id'}); |
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return unless ($priv eq 'bre'); |
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return if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/); |
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return if ($env{'request.state'} eq 'construct'); |
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&load_all_blockers($env{'user.name'},$env{'user.domain'},$blocks); |
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return unless (keys(%cachedblockers) > 0); |
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my (%possibles,@symbs); |
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if (!$symb) { |
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$symb = &symbread($uri,1,1,1,\%possibles); |
} |
} |
if (ref($docsblock->{'maps'}) eq 'HASH') { |
if ($symb) { |
if ($tocheck->{'maps'}) { |
@symbs = ($symb); |
if ($docsblock->{'maps'}{$tocheck->{'maps'}}) { |
} elsif (keys(%possibles)) { |
return 1; |
@symbs = keys(%possibles); |
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} |
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my $noblock; |
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foreach my $symb (@symbs) { |
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last if ($noblock); |
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my ($map,$resid,$resurl)=&decode_symb($symb); |
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foreach my $block (keys(%cachedblockers)) { |
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if ($block =~ /^firstaccess____(.+)$/) { |
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my $item = $1; |
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if (($item eq $map) || ($item eq $symb)) { |
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$noblock = 1; |
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last; |
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} |
} |
} |
} |
if (ref($cachedblockers{$block}) eq 'HASH') { |
} |
if (ref($cachedblockers{$block}{'resources'}) eq 'HASH') { |
if (ref($docsblock->{'resources'}) eq 'HASH') { |
if ($cachedblockers{$block}{'resources'}{$symb}) { |
if ($tocheck->{'resources'}) { |
unless (grep(/^\Q$block\E$/,@blockers)) { |
if ($docsblock->{'resources'}{$tocheck->{'resources'}}) { |
push(@blockers,$block); |
return 1; |
} |
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} |
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} |
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} |
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if (ref($cachedblockers{$block}{'maps'}) eq 'HASH') { |
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if ($cachedblockers{$block}{'maps'}{$map}) { |
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unless (grep(/^\Q$block\E$/,@blockers)) { |
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push(@blockers,$block); |
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} |
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} |
} |
} |
} |
} |
} |
} |
return; |
return if ($noblock); |
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return @blockers; |
} |
} |
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} |
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# -------------------------------- Deversion and split uri into path an filename |
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# |
# |
# Removes the versino from a URI and |
# Removes the version from a URI and |
# splits it in to its filename and path to the filename. |
# splits it in to its filename and path to the filename. |
# Seems like File::Basename could have done this more clearly. |
# Seems like File::Basename could have done this more clearly. |
# Parameters: |
# Parameters: |
Line 11108 sub deversion {
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Line 11164 sub deversion {
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# ------------------------------------------------------ Return symb list entry |
# ------------------------------------------------------ Return symb list entry |
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sub symbread { |
sub symbread { |
my ($thisfn,$donotrecurse)=@_; |
my ($thisfn,$donotrecurse,$ignorecachednull,$checkforblock,$possibles)=@_; |
my $cache_str='request.symbread.cached.'.$thisfn; |
my $cache_str='request.symbread.cached.'.$thisfn; |
if (defined($env{$cache_str})) { return $env{$cache_str}; } |
if (defined($env{$cache_str})) { |
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if ($ignorecachednull) { |
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return $env{$cache_str} unless ($env{$cache_str} eq ''); |
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} else { |
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return $env{$cache_str}; |
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} |
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} |
# no filename provided? try from environment |
# no filename provided? try from environment |
unless ($thisfn) { |
unless ($thisfn) { |
if ($env{'request.symb'}) { |
if ($env{'request.symb'}) { |
Line 11172 sub symbread {
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Line 11234 sub symbread {
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my ($mapid,$resid)=split(/\./,$ids); |
my ($mapid,$resid)=split(/\./,$ids); |
$syval=&encode_symb($bighash{'map_id_'.$mapid}, |
$syval=&encode_symb($bighash{'map_id_'.$mapid}, |
$resid,$thisfn); |
$resid,$thisfn); |
} elsif (!$donotrecurse) { |
if (ref($possibles) eq 'HASH') { |
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$possibles->{$syval} = 1; |
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} |
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if ($checkforblock) { |
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my @blockers = &has_comm_blocking('bre',$syval,$bighash{'src_'.$ids}); |
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if (@blockers) { |
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$syval = ''; |
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return; |
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} |
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} |
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} elsif ((!$donotrecurse) || ($checkforblock) || (ref($possibles) eq 'HASH')) { |
# ------------------------------------------ There is more than one possibility |
# ------------------------------------------ There is more than one possibility |
my $realpossible=0; |
my $realpossible=0; |
foreach my $id (@possibilities) { |
foreach my $id (@possibilities) { |
my $file=$bighash{'src_'.$id}; |
my $file=$bighash{'src_'.$id}; |
if (&allowed('bre',$file)) { |
my $canaccess; |
my ($mapid,$resid)=split(/\./,$id); |
if (($donotrecurse) || ($checkforblock) || (ref($possibles) eq 'HASH')) { |
if ($bighash{'map_type_'.$mapid} ne 'page') { |
$canaccess = 1; |
$realpossible++; |
} else { |
$syval=&encode_symb($bighash{'map_id_'.$mapid}, |
$canaccess = &allowed('bre',$file); |
$resid,$thisfn); |
} |
} |
if ($canaccess) { |
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my ($mapid,$resid)=split(/\./,$id); |
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if ($bighash{'map_type_'.$mapid} ne 'page') { |
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my $poss_syval=&encode_symb($bighash{'map_id_'.$mapid}, |
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$resid,$thisfn); |
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if (ref($possibles) eq 'HASH') { |
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$possibles->{$syval} = 1; |
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} |
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if ($checkforblock) { |
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my @blockers = &has_comm_blocking('bre',$poss_syval,$file); |
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unless (@blockers > 0) { |
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$syval = $poss_syval; |
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$realpossible++; |
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} |
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} else { |
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$syval = $poss_syval; |
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$realpossible++; |
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} |
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} |
} |
} |
} |
} |
if ($realpossible!=1) { $syval=''; } |
if ($realpossible!=1) { $syval=''; } |
Line 11191 sub symbread {
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Line 11281 sub symbread {
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$syval=''; |
$syval=''; |
} |
} |
} |
} |
untie(%bighash) |
untie(%bighash); |
} |
} |
} |
} |
if ($syval) { |
if ($syval) { |
Line 12962 escaped strings of the action recorded i
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Line 13052 escaped strings of the action recorded i
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=item * |
=item * |
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allowed($priv,$uri,$symb,$role,$clientip,$noblockcheck) : check for a user privilege; |
allowed($priv,$uri,$symb,$role) : check for a user privilege; returns codes for allowed actions |
returns codes for allowed actions |
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The first argument is required, all others are optional. |
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$priv is the privilege being checked. |
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$uri contains additional information about what is being checked for access (e.g., |
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URL, course ID etc.). |
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$symb is the unique resource instance identifier in a course; if needed, |
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but not provided, it will be retrieved via a call to &symbread(). |
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$role is the role for which a priv is being checked (only used if priv is evb). |
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$clientip is the user's IP address (only used when checking for access to portfolio |
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files). |
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$noblockcheck, if true, skips calls to &has_comm_blocking() for the bre priv. This |
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prevents recursive calls to &allowed. |
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F: full access |
F: full access |
U,I,K: authentication modes (cxx only) |
U,I,K: authentication modes (cxx only) |
'': forbidden |
'': forbidden |
1: user needs to choose course |
1: user needs to choose course |
2: browse allowed |
2: browse allowed |
A: passphrase authentication needed |
A: passphrase authentication needed |
B: access temporarily blocked because of a blocking event in a course. |
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=item * |
=item * |
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Line 13378 will be stored for query
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Line 13452 will be stored for query
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=item * |
=item * |
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symbread($filename) : return symbolic list entry (filename argument optional); |
symbread($filename,$donotrecurse,$ignorecachednull,$checkforblock,$possibles) : |
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return symbolic list entry (all arguments optional). |
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Args: filename is the filename (including path) for the file for which a symb |
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is required; donotrecurse, if true will prevent calls to allowed() being made |
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to check access status if more than one resource was found in the bighash |
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(see rev. 1.249) to avoid an infinite loop if an ambiguous resource is part of |
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a randompick); ignorecachednull, if true will prevent a symb of '' being |
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returned if $env{$cache_str} is defined as ''; checkforblock if true will |
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cause possible symbs to be checked to determine if they are subject to content |
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blocking, if so they will not be included as possible symbs; possibles is a |
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ref to a hash, which, as a side effect, will be populated with all possible |
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symbs (content blocking not tested). |
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returns the data handle |
returns the data handle |
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=item * |
=item * |