version 1.1165, 2013/12/24 19:15:10
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version 1.1166, 2013/12/25 09:52:42
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Line 13884 sub check_clone {
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Line 13884 sub check_clone {
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} |
} |
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sub construct_course { |
sub construct_course { |
my ($args,$logmsg,$courseid,$crsudom,$crsunum,$udom,$uname,$context,$cnum,$category) = @_; |
my ($args,$logmsg,$courseid,$crsudom,$crsunum,$udom,$uname,$context,$cnum,$category,$coderef) = @_; |
my $outcome; |
my $outcome; |
my $linefeed = '<br />'."\n"; |
my $linefeed = '<br />'."\n"; |
if ($context eq 'auto') { |
if ($context eq 'auto') { |
Line 13981 sub construct_course {
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Line 13981 sub construct_course {
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'plc.users.denied', |
'plc.users.denied', |
'hidefromcat', |
'hidefromcat', |
'checkforpriv', |
'checkforpriv', |
'categories'], |
'categories', |
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'internal.uniquecode'], |
$$crsudom,$$crsunum); |
$$crsudom,$$crsunum); |
} |
} |
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Line 14166 sub construct_course {
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Line 14167 sub construct_course {
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} |
} |
} |
} |
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# |
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# course should have uniquecode (available to course requester). |
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# |
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if ($args->{'uniquecode'}) { |
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my ($code,$error) = &make_unique_code($$crsudom,$$crsunum); |
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if ($code) { |
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$cenv{'internal.uniquecode'} = $code; |
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if (ref($coderef)) { |
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$$coderef = $code; |
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} |
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} |
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} |
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if ($args->{'disresdis'}) { |
if ($args->{'disresdis'}) { |
$cenv{'pch.roles.denied'}='st'; |
$cenv{'pch.roles.denied'}='st'; |
} |
} |
Line 14234 sub construct_course {
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Line 14248 sub construct_course {
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return (1,$outcome); |
return (1,$outcome); |
} |
} |
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sub make_unique_code { |
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my ($cdom,$cnum) = @_; |
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# get lock on uniquecodes db |
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my $lockhash = { |
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$cnum."\0".'uniquecodes' => $env{'user.name'}. |
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':'.$env{'user.domain'}, |
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}; |
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my $tries = 0; |
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my $gotlock = &Apache::lonnet::newput_dom('uniquecodes',$lockhash,$cdom); |
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my ($code,$error); |
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while (($gotlock ne 'ok') && ($tries<3)) { |
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$tries ++; |
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sleep 1; |
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$gotlock = &Apache::lonnet::newput_dom('uniquecodes',$lockhash,$cdom); |
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} |
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if ($gotlock eq 'ok') { |
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my %currcodes = &Apache::lonnet::dump_dom('uniquecodes',$cdom); |
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my $gotcode; |
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my $attempts = 0; |
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while ((!$gotcode) && ($attempts < 100)) { |
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$code = &generate_code(); |
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if (!exists($currcodes{$code})) { |
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$gotcode = 1; |
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unless (&Apache::lonnet::newput_dom('uniquecodes',{ $code => $cnum },$cdom) eq 'ok') { |
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$error = 'nostore'; |
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} |
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} |
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$attempts ++; |
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} |
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my @del_lock = ($cnum."\0".'uniquecodes'); |
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my $dellockoutcome = &Apache::lonnet::del_dom('uniquecodes',\@del_lock,$cdom); |
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} else { |
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$error = 'nolock'; |
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} |
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return ($code,$error); |
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} |
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sub generate_code { |
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my $code; |
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my @letts = qw(B C D G H J K M N P Q R S T V W X Z); |
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for (my $i=0; $i<6; $i++) { |
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my $lettnum = int (rand 2); |
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my $item = ''; |
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if ($lettnum) { |
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$item = $letts[int( rand(18) )]; |
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} else { |
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$item = 1+int( rand(8) ); |
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} |
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$code .= $item; |
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} |
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return $code; |
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} |
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############################################################ |
############################################################ |
############################################################ |
############################################################ |
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