version 1.159.2.12, 2020/09/30 19:33:59
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version 1.159.2.14, 2020/10/06 17:39:04
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Line 617 sub handler {
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Line 617 sub handler {
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my $query = $r->args; |
my $query = $r->args; |
foreach my $pair (split(/&/,$query)) { |
foreach my $pair (split(/&/,$query)) { |
my ($name, $value) = split(/=/,$pair); |
my ($name, $value) = split(/=/,$pair); |
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$name = &unescape($name); |
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$value =~ tr/+/ /; |
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$value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; |
if ($name eq 'symb') { |
if ($name eq 'symb') { |
$poss_symb = &Apache::lonnet::symbclean($value); |
$poss_symb = &Apache::lonnet::symbclean($value); |
last; |
last; |
Line 777 sub handler {
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Line 780 sub handler {
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unless (&Apache::lonnet::symbverify($symb,$requrl,\$encstate)) { |
unless (&Apache::lonnet::symbverify($symb,$requrl,\$encstate)) { |
$invalidsymb = 1; |
$invalidsymb = 1; |
# |
# |
# If $env{'request.enc'} is true, but no encryption for $symb retrieved |
# If $env{'request.enc'} inconsistent with encryption expected for $symb |
# by original lonnet::symbread() call, call again to check for an instance |
# retrieved by lonnet::symbread(), call again to check for an instance of |
# of $requrl in the course which has encryption, and set that as the symb. |
# $requrl in the course for which expected encryption matches request.enc. |
# If there is no such symb, or symbverify() fails for the new symb proceed |
# If symb for different instance passes lonnet::symbverify(), use that as |
# to report invalid symb. |
# the symb for $requrl and call &Apache::lonnet::allowed() for that symb. |
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# Report invalid symb if there is no other symb. Redirect to /adm/ambiguous |
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# if multiple possible symbs consistent with request.enc available for $requrl. |
# |
# |
if ($env{'request.enc'} && !$encstate) { |
if (($env{'request.enc'} && !$encstate) || (!$env{'request.enc'} && $encstate)) { |
my %possibles; |
my %possibles; |
my $nocache = 1; |
my $nocache = 1; |
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my $oldsymb = $symb; |
$symb = &Apache::lonnet::symbread($requrl,'','','',\%possibles,$nocache); |
$symb = &Apache::lonnet::symbread($requrl,'','','',\%possibles,$nocache); |
if ($symb) { |
if (($symb) && ($symb ne $oldsymb)) { |
if (&Apache::lonnet::symbverify($symb,$requrl)) { |
if (&Apache::lonnet::symbverify($symb,$requrl)) { |
$invalidsymb = ''; |
my $access=&Apache::lonnet::allowed('bre',$requrl,$symb); |
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if ($access eq 'B') { |
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$env{'request.symb'} = $symb; |
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&Apache::blockedaccess::setup_handler($r); |
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return OK; |
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} elsif (($access eq '2') || ($access eq 'F')) { |
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$invalidsymb = ''; |
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} |
} |
} |
} elsif (keys(%possibles) > 1) { |
} elsif (keys(%possibles) > 1) { |
$r->internal_redirect('/adm/ambiguous'); |
$r->internal_redirect('/adm/ambiguous'); |