version 1.1172.2.118.2.7, 2020/09/08 02:08:27
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version 1.1172.2.118.2.9, 2020/10/06 20:02:55
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Line 7831 sub customaccess {
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Line 7831 sub customaccess {
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# ------------------------------------------------- Check for a user privilege |
# ------------------------------------------------- Check for a user privilege |
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sub allowed { |
sub allowed { |
my ($priv,$uri,$symb,$role,$clientip,$noblockcheck)=@_; |
my ($priv,$uri,$symb,$role,$clientip,$noblockcheck,$ignorecache)=@_; |
my $ver_orguri=$uri; |
my $ver_orguri=$uri; |
$uri=&deversion($uri); |
$uri=&deversion($uri); |
my $orguri=$uri; |
my $orguri=$uri; |
Line 8056 sub allowed {
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Line 8056 sub allowed {
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if ($noblockcheck) { |
if ($noblockcheck) { |
$thisallowed.=$value; |
$thisallowed.=$value; |
} else { |
} else { |
my @blockers = &has_comm_blocking($priv,$symb,$uri); |
my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache); |
if (@blockers > 0) { |
if (@blockers > 0) { |
$thisallowed = 'B'; |
$thisallowed = 'B'; |
} else { |
} else { |
Line 8076 sub allowed {
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Line 8076 sub allowed {
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if ($noblockcheck) { |
if ($noblockcheck) { |
$thisallowed='F'; |
$thisallowed='F'; |
} else { |
} else { |
my @blockers = &has_comm_blocking($priv,$symb,$refuri); |
my @blockers = &has_comm_blocking($priv,'',$refuri,'',1); |
if (@blockers > 0) { |
if (@blockers > 0) { |
$thisallowed = 'B'; |
$thisallowed = 'B'; |
} else { |
} else { |
Line 8095 sub allowed {
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Line 8095 sub allowed {
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&& &is_portfolio_url($uri)) { |
&& &is_portfolio_url($uri)) { |
$thisallowed = &portfolio_access($uri,$clientip); |
$thisallowed = &portfolio_access($uri,$clientip); |
} |
} |
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# Full access at system, domain or course-wide level? Exit. |
# Full access at system, domain or course-wide level? Exit. |
if ($thisallowed=~/F/) { |
if ($thisallowed=~/F/) { |
return 'F'; |
return 'F'; |
Line 8149 sub allowed {
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Line 8149 sub allowed {
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if ($noblockcheck) { |
if ($noblockcheck) { |
$thisallowed.=$value; |
$thisallowed.=$value; |
} else { |
} else { |
my @blockers = &has_comm_blocking($priv,$symb,$uri); |
my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache); |
if (@blockers > 0) { |
if (@blockers > 0) { |
$thisallowed = 'B'; |
$thisallowed = 'B'; |
} else { |
} else { |
Line 8162 sub allowed {
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Line 8162 sub allowed {
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$checkreferer=0; |
$checkreferer=0; |
} |
} |
} |
} |
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if ($checkreferer) { |
if ($checkreferer) { |
my $refuri=$env{'httpref.'.$orguri}; |
my $refuri=$env{'httpref.'.$orguri}; |
unless ($refuri) { |
unless ($refuri) { |
Line 8191 sub allowed {
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Line 8191 sub allowed {
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if ($noblockcheck) { |
if ($noblockcheck) { |
$thisallowed.=$value; |
$thisallowed.=$value; |
} else { |
} else { |
my @blockers = &has_comm_blocking($priv,$symb,$refuri); |
my @blockers = &has_comm_blocking($priv,'',$refuri,'',1); |
if (@blockers > 0) { |
if (@blockers > 0) { |
$thisallowed = 'B'; |
$thisallowed = 'B'; |
} else { |
} else { |
Line 8277 sub allowed {
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Line 8277 sub allowed {
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} |
} |
} |
} |
} |
} |
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# |
# |
# Rest of the restrictions depend on selected course |
# Rest of the restrictions depend on selected course |
# |
# |
Line 8435 sub constructaccess {
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Line 8435 sub constructaccess {
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# |
# |
# User for whom data are being temporarily cached. |
# User for whom data are being temporarily cached. |
my $cacheduser=''; |
my $cacheduser=''; |
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# Course for which data are being temporarily cached. |
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my $cachedcid=''; |
# Cached blockers for this user (a hash of blocking items). |
# Cached blockers for this user (a hash of blocking items). |
my %cachedblockers=(); |
my %cachedblockers=(); |
# When the data were last cached. |
# When the data were last cached. |
my $cachedlast=''; |
my $cachedlast=''; |
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sub load_all_blockers { |
sub load_all_blockers { |
my ($uname,$udom,$blocks)=@_; |
my ($uname,$udom)=@_; |
if (($uname ne '') && ($udom ne '')) { |
if (($uname ne '') && ($udom ne '')) { |
if (($cacheduser eq $uname.':'.$udom) && |
if (($cacheduser eq $uname.':'.$udom) && |
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($cachedcid eq $env{'request.course.id'}) && |
(abs($cachedlast-time)<5)) { |
(abs($cachedlast-time)<5)) { |
return; |
return; |
} |
} |
} |
} |
$cachedlast=time; |
$cachedlast=time; |
$cacheduser=$uname.':'.$udom; |
$cacheduser=$uname.':'.$udom; |
%cachedblockers = &get_commblock_resources($blocks); |
$cachedcid=$env{'request.course.id'}; |
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%cachedblockers = &get_commblock_resources(); |
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return; |
} |
} |
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sub get_comm_blocks { |
sub get_comm_blocks { |
Line 8588 sub get_commblock_resources {
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Line 8593 sub get_commblock_resources {
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} |
} |
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sub has_comm_blocking { |
sub has_comm_blocking { |
my ($priv,$symb,$uri,$blocks) = @_; |
my ($priv,$symb,$uri,$ignoresymbdb,$noenccheck,$blocked,$blocks) = @_; |
my @blockers; |
my @blockers; |
return unless ($env{'request.course.id'}); |
return unless ($env{'request.course.id'}); |
return unless ($priv eq 'bre'); |
return unless ($priv eq 'bre'); |
return if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/); |
return if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/); |
return if ($env{'request.state'} eq 'construct'); |
return if ($env{'request.state'} eq 'construct'); |
&load_all_blockers($env{'user.name'},$env{'user.domain'},$blocks); |
my %blockinfo; |
return unless (keys(%cachedblockers) > 0); |
if (ref($blocks) eq 'HASH') { |
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%blockinfo = &get_commblock_resources($blocks); |
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} else { |
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&load_all_blockers($env{'user.name'},$env{'user.domain'}); |
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%blockinfo = %cachedblockers; |
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} |
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return unless (keys(%blockinfo) > 0); |
my (%possibles,@symbs); |
my (%possibles,@symbs); |
if (!$symb) { |
if (!$symb) { |
$symb = &symbread($uri,1,1,1,\%possibles); |
$symb = &symbread($uri,1,1,1,\%possibles,$ignoresymbdb,$noenccheck); |
} |
} |
if ($symb) { |
if ($symb) { |
@symbs = ($symb); |
@symbs = ($symb); |
Line 8609 sub has_comm_blocking {
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Line 8620 sub has_comm_blocking {
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foreach my $symb (@symbs) { |
foreach my $symb (@symbs) { |
last if ($noblock); |
last if ($noblock); |
my ($map,$resid,$resurl)=&decode_symb($symb); |
my ($map,$resid,$resurl)=&decode_symb($symb); |
foreach my $block (keys(%cachedblockers)) { |
foreach my $block (keys(%blockinfo)) { |
if ($block =~ /^firstaccess____(.+)$/) { |
if ($block =~ /^firstaccess____(.+)$/) { |
my $item = $1; |
my $item = $1; |
if (($item eq $map) || ($item eq $symb)) { |
unless ($blocked) { |
$noblock = 1; |
if (($item eq $map) || ($item eq $symb)) { |
last; |
$noblock = 1; |
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last; |
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} |
} |
} |
} |
} |
if (ref($cachedblockers{$block}) eq 'HASH') { |
if (ref($blockinfo{$block}) eq 'HASH') { |
if (ref($cachedblockers{$block}{'resources'}) eq 'HASH') { |
if (ref($blockinfo{$block}{'resources'}) eq 'HASH') { |
if ($cachedblockers{$block}{'resources'}{$symb}) { |
if ($blockinfo{$block}{'resources'}{$symb}) { |
unless (grep(/^\Q$block\E$/,@blockers)) { |
unless (grep(/^\Q$block\E$/,@blockers)) { |
push(@blockers,$block); |
push(@blockers,$block); |
} |
} |
} |
} |
} |
} |
} |
if (ref($blockinfo{$block}{'maps'}) eq 'HASH') { |
if (ref($cachedblockers{$block}{'maps'}) eq 'HASH') { |
if ($blockinfo{$block}{'maps'}{$map}) { |
if ($cachedblockers{$block}{'maps'}{$map}) { |
unless (grep(/^\Q$block\E$/,@blockers)) { |
unless (grep(/^\Q$block\E$/,@blockers)) { |
push(@blockers,$block); |
push(@blockers,$block); |
} |
} |
} |
} |
} |
} |
} |
} |
} |
} |
} |
return if ($noblock); |
unless ($noblock) { |
return @blockers; |
return @blockers; |
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} |
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return; |
} |
} |
} |
} |
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Line 11322 sub resdata {
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Line 11337 sub resdata {
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} |
} |
if (!ref($result)) { return $result; } |
if (!ref($result)) { return $result; } |
foreach my $item (@which) { |
foreach my $item (@which) { |
if (ref($item) eq 'ARRAY') { |
if (defined($result->{$item->[0]})) { |
if (defined($result->{$item->[0]})) { |
return [$result->{$item->[0]},$item->[1]]; |
return [$result->{$item->[0]},$item->[1]]; |
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} |
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} |
} |
} |
} |
return undef; |
return undef; |
Line 12511 sub deversion {
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Line 12524 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,$ignorecachednull,$checkforblock,$possibles)=@_; |
my ($thisfn,$donotrecurse,$ignorecachednull,$checkforblock,$possibles, |
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$ignoresymbdb,$noenccheck)=@_; |
my $cache_str='request.symbread.cached.'.$thisfn; |
my $cache_str='request.symbread.cached.'.$thisfn; |
if (defined($env{$cache_str})) { |
if (defined($env{$cache_str})) { |
if ($ignorecachednull) { |
unless (ref($possibles) eq 'HASH') { |
return $env{$cache_str} unless ($env{$cache_str} eq ''); |
if ($ignorecachednull) { |
} else { |
return $env{$cache_str} unless ($env{$cache_str} eq ''); |
return $env{$cache_str}; |
} else { |
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return $env{$cache_str}; |
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} |
} |
} |
} |
} |
# no filename provided? try from environment |
# no filename provided? try from environment |
Line 12546 sub symbread {
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Line 12562 sub symbread {
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if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) { |
if ($targetfn =~ m|^adm/wrapper/(ext/.*)|) { |
$targetfn=$1; |
$targetfn=$1; |
} |
} |
if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', |
unless ($ignoresymbdb) { |
&GDBM_READER(),0640)) { |
if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db', |
$syval=$hash{$targetfn}; |
&GDBM_READER(),0640)) { |
untie(%hash); |
$syval=$hash{$targetfn}; |
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untie(%hash); |
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} |
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if ($syval && $checkforblock) { |
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my @blockers = &has_comm_blocking('bre',$syval,$thisfn,$ignoresymbdb,$noenccheck); |
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if (@blockers) { |
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$syval=''; |
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} |
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} |
} |
} |
# ---------------------------------------------------------- There was an entry |
# ---------------------------------------------------------- There was an entry |
if ($syval) { |
if ($syval) { |
Line 12582 sub symbread {
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Line 12606 sub symbread {
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$syval=&encode_symb($bighash{'map_id_'.$mapid}, |
$syval=&encode_symb($bighash{'map_id_'.$mapid}, |
$resid,$thisfn); |
$resid,$thisfn); |
if (ref($possibles) eq 'HASH') { |
if (ref($possibles) eq 'HASH') { |
$possibles->{$syval} = 1; |
unless ($bighash{'randomout_'.$ids} || $env{'request.role.adv'}) { |
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$possibles->{$syval} = 1; |
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} |
} |
} |
if ($checkforblock) { |
if ($checkforblock) { |
my @blockers = &has_comm_blocking('bre',$syval,$bighash{'src_'.$ids}); |
unless ($bighash{'randomout_'.$ids} || $env{'request.role.adv'}) { |
if (@blockers) { |
my @blockers = &has_comm_blocking('bre',$syval,$bighash{'src_'.$ids},'',$noenccheck); |
$syval = ''; |
if (@blockers) { |
return; |
$syval = ''; |
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untie(%bighash); |
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return $env{$cache_str}=''; |
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} |
} |
} |
} |
} |
} elsif ((!$donotrecurse) || ($checkforblock) || (ref($possibles) eq 'HASH')) { |
} elsif ((!$donotrecurse) || ($checkforblock) || (ref($possibles) eq 'HASH')) { |
Line 12607 sub symbread {
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Line 12636 sub symbread {
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if ($bighash{'map_type_'.$mapid} ne 'page') { |
if ($bighash{'map_type_'.$mapid} ne 'page') { |
my $poss_syval=&encode_symb($bighash{'map_id_'.$mapid}, |
my $poss_syval=&encode_symb($bighash{'map_id_'.$mapid}, |
$resid,$thisfn); |
$resid,$thisfn); |
if (ref($possibles) eq 'HASH') { |
next if ($bighash{'randomout_'.$id} && !$env{'request.role.adv'}); |
$possibles->{$syval} = 1; |
next unless (($noenccheck) || ($bighash{'encrypted_'.$id} eq $env{'request.enc'})); |
} |
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if ($checkforblock) { |
if ($checkforblock) { |
my @blockers = &has_comm_blocking('bre',$poss_syval,$file); |
my @blockers = &has_comm_blocking('bre',$poss_syval,$file,'',$noenccheck); |
unless (@blockers > 0) { |
if (@blockers > 0) { |
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$syval = ''; |
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} else { |
$syval = $poss_syval; |
$syval = $poss_syval; |
$realpossible++; |
$realpossible++; |
} |
} |
Line 12620 sub symbread {
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Line 12650 sub symbread {
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$syval = $poss_syval; |
$syval = $poss_syval; |
$realpossible++; |
$realpossible++; |
} |
} |
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if ($syval) { |
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if (ref($possibles) eq 'HASH') { |
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$possibles->{$syval} = 1; |
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} |
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} |
} |
} |
} |
} |
} |
} |