loncom/lonnet/perl/lonnet.pm - diff

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Diff for /loncom/lonnet/perl/lonnet.pm between versions 1.1172.2.118.2.21 and 1.1243

version 1.1172.2.118.2.21, 2021/06/20 19:53:37	version 1.1243, 2013/10/14 17:14:48
Line 74 use strict;	Line 74 use strict;
use LWP::UserAgent();	use LWP::UserAgent();
use HTTP::Date;	use HTTP::Date;
use Image::Magick;	use Image::Magick;
use CGI::Cookie;

use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir $deftex
	use Encode;

	use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir $apache
$_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease	$_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease
%managerstab $passwdmin);	%managerstab);

my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,	my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,
%userrolehash, $processmarker, $dumpcount, %coursedombuf,	%userrolehash, $processmarker, $dumpcount, %coursedombuf,
Line 90 use GDBM_File;	Line 92 use GDBM_File;
use HTML::LCParser;	use HTML::LCParser;
use Fcntl qw(:flock);	use Fcntl qw(:flock);
use Storable qw(thaw nfreeze);	use Storable qw(thaw nfreeze);
use Time::HiRes qw( sleep gettimeofday tv_interval );	use Time::HiRes qw( gettimeofday tv_interval );
use Cache::Memcached;	use Cache::Memcached;
use Digest::MD5;	use Digest::MD5;
use Math::Random;	use Math::Random;
Line 99 use LONCAPA qw(:DEFAULT :match);	Line 101 use LONCAPA qw(:DEFAULT :match);
use LONCAPA::Configuration;	use LONCAPA::Configuration;
use LONCAPA::lonmetadata;	use LONCAPA::lonmetadata;
use LONCAPA::Lond;	use LONCAPA::Lond;
use LONCAPA::transliterate;

use File::Copy;	use File::Copy;

my $readit;	my $readit;
my $max_connection_retries = 20; # Or some such value.	my $max_connection_retries = 10; # Or some such value.

require Exporter;	require Exporter;

our @ISA = qw (Exporter);	our @ISA = qw (Exporter);
our @EXPORT = qw(%env);	our @EXPORT = qw(%env);


# ------------------------------------ Logging (parameters, docs, slots, roles)	# ------------------------------------ Logging (parameters, docs, slots, roles)
{	{
my $logid;	my $logid;
Line 125 our @EXPORT = qw(%env);	Line 127 our @EXPORT = qw(%env);
$logid ++;	$logid ++;
my $now = time();	my $now = time();
my $id=$now.'00000'.$$.'00000'.$logid;	my $id=$now.'00000'.$$.'00000'.$logid;
my $ip = &get_requestor_ip();	my $logentry = {
my $logentry = {	$id => {
$id => {	'exe_uname' => $env{'user.name'},
'exe_uname' => $env{'user.name'},	'exe_udom' => $env{'user.domain'},
'exe_udom' => $env{'user.domain'},	'exe_time' => $now,
'exe_time' => $now,	'exe_ip' => $ENV{'REMOTE_ADDR'},
'exe_ip' => $ip,	'delflag' => $delflag,
'delflag' => $delflag,	'logentry' => $storehash,
'logentry' => $storehash,	'uname' => $uname,
'uname' => $uname,	'udom' => $udom,
'udom' => $udom,	}
}
};	};
return &put('nohist_'.$hash_name,$logentry,$cdom,$cnum);	return &put('nohist_'.$hash_name,$logentry,$cdom,$cnum);
}	}
}	}

sub logtouch {	sub logtouch {
my $execdir=$perlvar{'lonDaemons'};	my $execdir=$perlvar{'lonDaemons'};
unless (-e "$execdir/logs/lonnet.log") {	unless (-e "$execdir/logs/lonnet.log") {
open(my $fh,">>","$execdir/logs/lonnet.log");	open(my $fh,">>$execdir/logs/lonnet.log");
close $fh;	close $fh;
}	}
my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];	my ($wwwuid,$wwwgid)=(getpwnam('www'))[2,3];
Line 157 sub logthis {	Line 158 sub logthis {
my $execdir=$perlvar{'lonDaemons'};	my $execdir=$perlvar{'lonDaemons'};
my $now=time;	my $now=time;
my $local=localtime($now);	my $local=localtime($now);
if (open(my $fh,">>","$execdir/logs/lonnet.log")) {	if (open(my $fh,">>$execdir/logs/lonnet.log")) {
my $logstring = $local. " ($$): ".$message."\n"; # Keep any \'s in string.	my $logstring = $local. " ($$): ".$message."\n"; # Keep any \'s in string.
print $fh $logstring;	print $fh $logstring;
close($fh);	close($fh);
Line 170 sub logperm {	Line 171 sub logperm {
my $execdir=$perlvar{'lonDaemons'};	my $execdir=$perlvar{'lonDaemons'};
my $now=time;	my $now=time;
my $local=localtime($now);	my $local=localtime($now);
if (open(my $fh,">>","$execdir/logs/lonnet.perm.log")) {	if (open(my $fh,">>$execdir/logs/lonnet.perm.log")) {
print $fh "$now:$message:$local\n";	print $fh "$now:$message:$local\n";
close($fh);	close($fh);
}	}
Line 264 sub get_server_loncaparev {	Line 265 sub get_server_loncaparev {
if ($caller eq 'loncron') {	if ($caller eq 'loncron') {
my $ua=new LWP::UserAgent;	my $ua=new LWP::UserAgent;
$ua->timeout(4);	$ua->timeout(4);
my $hostname = &hostname($lonhost);
my $protocol = $protocol{$lonhost};	my $protocol = $protocol{$lonhost};
$protocol = 'http' if ($protocol ne 'https');	$protocol = 'http' if ($protocol ne 'https');
my $url = $protocol.'://'.$hostname.'/adm/about.html';	my $url = $protocol.'://'.&hostname($lonhost).'/adm/about.html';
my $request=new HTTP::Request('GET',$url);	my $request=new HTTP::Request('GET',$url);
my $response=$ua->request($request);	my $response=$ua->request($request);
unless ($response->is_error()) {	unless ($response->is_error()) {
Line 360 sub remote_devalidate_cache {	Line 360 sub remote_devalidate_cache {
my $items;	my $items;
return unless (ref($cachekeys) eq 'ARRAY');	return unless (ref($cachekeys) eq 'ARRAY');
my $cachestr = join('&',@{$cachekeys});	my $cachestr = join('&',@{$cachekeys});
return &reply('devalidatecache:'.&escape($cachestr),$lonhost);	my $response = &reply('devalidatecache:'.&escape($cachestr),$lonhost);
	return $response;
}	}

# -------------------------------------------------- Non-critical communication	# -------------------------------------------------- Non-critical communication
Line 374 sub subreply {	Line 375 sub subreply {

my $lockfile=$peerfile.".lock";	my $lockfile=$peerfile.".lock";
while (-e $lockfile) { # Need to wait for the lockfile to disappear.	while (-e $lockfile) { # Need to wait for the lockfile to disappear.
sleep(0.1);	sleep(1);
}	}
# At this point, either a loncnew parent is listening or an old lonc	# At this point, either a loncnew parent is listening or an old lonc
# or loncnew child is listening so we can connect or everything's dead.	# or loncnew child is listening so we can connect or everything's dead.
Line 392 sub subreply {	Line 393 sub subreply {
} else {	} else {
&create_connection(&hostname($server),$server);	&create_connection(&hostname($server),$server);
}	}
sleep(0.1); # Try again later if failed connection.	sleep(1); # Try again later if failed connection.
}	}
my $answer;	my $answer;
if ($client) {	if ($client) {
Line 411 sub reply {	Line 412 sub reply {
unless (defined(&hostname($server))) { return 'no_such_host'; }	unless (defined(&hostname($server))) { return 'no_such_host'; }
my $answer=subreply($cmd,$server);	my $answer=subreply($cmd,$server);
if (($answer=~/^refused/) \|\| ($answer=~/^rejected/)) {	if (($answer=~/^refused/) \|\| ($answer=~/^rejected/)) {
my $logged = $cmd;	&logthis("<font color=\"blue\">WARNING:".
if ($cmd =~ /^encrypt:([^:]+):/) {	" $cmd to $server returned $answer</font>");
my $subcmd = $1;
if (($subcmd eq 'auth') \|\| ($subcmd eq 'passwd') \|\|
($subcmd eq 'changeuserauth') \|\| ($subcmd eq 'makeuser') \|\|
($subcmd eq 'putdom') \|\| ($subcmd eq 'autoexportgrades')) {
(undef,undef,my @rest) = split(/:/,$cmd);
if (($subcmd eq 'auth') \|\| ($subcmd eq 'putdom')) {
splice(@rest,2,1,'Hidden');
} elsif ($subcmd eq 'passwd') {
splice(@rest,2,2,('Hidden','Hidden'));
} elsif (($subcmd eq 'changeuserauth') \|\| ($subcmd eq 'makeuser') \|\|
($subcmd eq 'autoexportgrades')) {
splice(@rest,3,1,'Hidden');
}
$logged = join(':',('encrypt:'.$subcmd,@rest));
}
}
&logthis("<font color=\"blue\">WARNING:".
" $logged to $server returned $answer</font>");
}	}
return $answer;	return $answer;
}	}
Line 439 sub reply {	Line 422 sub reply {

sub reconlonc {	sub reconlonc {
my ($lonid) = @_;	my ($lonid) = @_;
	my $hostname = &hostname($lonid);
if ($lonid) {	if ($lonid) {
my $hostname = &hostname($lonid);
my $peerfile="$perlvar{'lonSockDir'}/$hostname";	my $peerfile="$perlvar{'lonSockDir'}/$hostname";
if ($hostname && -e $peerfile) {	if ($hostname && -e $peerfile) {
&logthis("Trying to reconnect lonc for $lonid ($hostname)");	&logthis("Trying to reconnect lonc for $lonid ($hostname)");
Line 458 sub reconlonc {	Line 441 sub reconlonc {

&logthis("Trying to reconnect lonc");	&logthis("Trying to reconnect lonc");
my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";	my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
if (open(my $fh,"<",$loncfile)) {	if (open(my $fh,"<$loncfile")) {
my $loncpid=<$fh>;	my $loncpid=<$fh>;
chomp($loncpid);	chomp($loncpid);
if (kill 0 => $loncpid) {	if (kill 0 => $loncpid) {
Line 486 sub critical {	Line 469 sub critical {
}	}
my $answer=reply($cmd,$server);	my $answer=reply($cmd,$server);
if ($answer eq 'con_lost') {	if ($answer eq 'con_lost') {
&reconlonc($server);	&reconlonc("$perlvar{'lonSockDir'}/$server");
my $answer=reply($cmd,$server);	my $answer=reply($cmd,$server);
if ($answer eq 'con_lost') {	if ($answer eq 'con_lost') {
my $now=time;	my $now=time;
Line 498 sub critical {	Line 481 sub critical {
$dumpcount++;	$dumpcount++;
{	{
my $dfh;	my $dfh;
if (open($dfh,">",$dfilename)) {	if (open($dfh,">$dfilename")) {
print $dfh "$cmd\n";	print $dfh "$cmd\n";
close($dfh);	close($dfh);
}	}
}	}
sleep 1;	sleep 2;
my $wcmd='';	my $wcmd='';
{	{
my $dfh;	my $dfh;
if (open($dfh,"<",$dfilename)) {	if (open($dfh,"<$dfilename")) {
$wcmd=<$dfh>;	$wcmd=<$dfh>;
close($dfh);	close($dfh);
}	}
Line 623 sub transfer_profile_to_env {	Line 606 sub transfer_profile_to_env {

# ---------------------------------------------------- Check for valid session	# ---------------------------------------------------- Check for valid session
sub check_for_valid_session {	sub check_for_valid_session {
my ($r,$name,$userhashref,$domref) = @_;	my ($r,$name) = @_;
my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));	my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
my ($lonidsdir,$linkname,$pubname,$secure,$lonid);	if ($name eq '') {
if ($name eq 'lonDAV') {	$name = 'lonID';
$lonidsdir=$r->dir_config('lonDAVsessDir');
} else {
$lonidsdir=$r->dir_config('lonIDsDir');
if ($name eq '') {
$name = 'lonID';
}
}
if ($name eq 'lonID') {
$secure = 'lonSID';
$linkname = 'lonLinkID';
$pubname = 'lonPubID';
if (exists($cookies{$secure})) {
$lonid=$cookies{$secure};
} elsif (exists($cookies{$name})) {
$lonid=$cookies{$name};
} elsif ((exists($cookies{$linkname})) && ($ENV{'SERVER_PORT'} != 443)) {
$lonid=$cookies{$linkname};
} elsif (exists($cookies{$pubname})) {
$lonid=$cookies{$pubname};
}
} else {
$lonid=$cookies{$name};
}	}
	my $lonid=$cookies{$name};
return undef if (!$lonid);	return undef if (!$lonid);

my $handle=&LONCAPA::clean_handle($lonid->value);	my $handle=&LONCAPA::clean_handle($lonid->value);
if (-l "$lonidsdir/$handle.id") {	my $lonidsdir;
my $link = readlink("$lonidsdir/$handle.id");	if ($name eq 'lonDAV') {
if ((-e $link) && ($link =~ m{^\Q$lonidsdir\E/(.+)\.id$})) {	$lonidsdir=$r->dir_config('lonDAVsessDir');
$handle = $1;	} else {
}	$lonidsdir=$r->dir_config('lonIDsDir');
}
if (!-e "$lonidsdir/$handle.id") {
if ((ref($domref)) && ($name eq 'lonID') &&
($handle =~ /^($match_username)\_\d+\_($match_domain)\_(.+)$/)) {
my ($possuname,$possudom,$possuhome) = ($1,$2,$3);
if ((&domain($possudom) ne '') && (&homeserver($possuname,$possudom) eq $possuhome)) {
$$domref = $possudom;
}
}
return undef;
}	}
	return undef if (!-e "$lonidsdir/$handle.id");

my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");	my $opened = open(my $idf,'+<',"$lonidsdir/$handle.id");
return undef if (!$opened);	return undef if (!$opened);
Line 682 sub check_for_valid_session {	Line 635 sub check_for_valid_session {

if (!defined($disk_env{'user.name'})	if (!defined($disk_env{'user.name'})
\|\| !defined($disk_env{'user.domain'})) {	\|\| !defined($disk_env{'user.domain'})) {
untie(%disk_env);
return undef;	return undef;
}	}
	if (($r->user() eq '') && ($apache >= 2.4)) {
if (ref($userhashref) eq 'HASH') {	if ($disk_env{'user.domain'} eq $r->dir_config('lonDefDomain')) {
$userhashref->{'name'} = $disk_env{'user.name'};	$r->user($disk_env{'user.name'});
$userhashref->{'domain'} = $disk_env{'user.domain'};	} else {
	$r->user($disk_env{'user.name'}.':'.$disk_env{'user.domain'});
	}
}	}
untie(%disk_env);

return $handle;	return $handle;
}	}

Line 715 sub timed_flock {	Line 667 sub timed_flock {
}	}
}	}

sub get_sessionfile_vars {
my ($handle,$lonidsdir,$storearr) = @_;
my %returnhash;
unless (ref($storearr) eq 'ARRAY') {
return %returnhash;
}
if (-l "$lonidsdir/$handle.id") {
my $link = readlink("$lonidsdir/$handle.id");
if ((-e $link) && ($link =~ m{^\Q$lonidsdir\E/(.+)\.id$})) {
$handle = $1;
}
}
if ((-e "$lonidsdir/$handle.id") &&
($handle =~ /^($match_username)\_\d+\_($match_domain)\_(.+)$/)) {
my ($possuname,$possudom,$possuhome) = ($1,$2,$3);
if ((&domain($possudom) ne '') && (&homeserver($possuname,$possudom) eq $possuhome)) {
if (open(my $idf,'+<',"$lonidsdir/$handle.id")) {
flock($idf,LOCK_SH);
if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
&GDBM_READER(),0640)) {
foreach my $item (@{$storearr}) {
$returnhash{$item} = $disk_env{$item};
}
untie(%disk_env);
}
}
}
}
return %returnhash;
}

# ---------------------------------------------------------- Append Environment	# ---------------------------------------------------------- Append Environment

sub appenv {	sub appenv {
Line 756 sub appenv {	Line 677 sub appenv {
if (($key =~ /^user\.role/) \|\| ($key =~ /^user\.priv/)) {	if (($key =~ /^user\.role/) \|\| ($key =~ /^user\.priv/)) {
$refused = 1;	$refused = 1;
if (ref($roles) eq 'ARRAY') {	if (ref($roles) eq 'ARRAY') {
my ($type,$role) = ($key =~ m{^user\.(role\|priv)\.(.+?)\./});	my ($type,$role) = ($key =~ /^user\.(role\|priv)\.([^.]+)\./);
if (grep(/^\Q$role\E$/,@{$roles})) {	if (grep(/^\Q$role\E$/,@{$roles})) {
$refused = 0;	$refused = 0;
}	}
Line 771 sub appenv {	Line 692 sub appenv {
$env{$key}=$newenv->{$key};	$env{$key}=$newenv->{$key};
}	}
}	}
my $lonids = $perlvar{'lonIDsDir'};	my $opened = open(my $env_file,'+<',$env{'user.environment'});
if ($env{'user.environment'} =~ m{^\Q$lonids/\E$match_username\_\d+\_$match_domain\_[\w\-.]+\.id$}) {	if ($opened
my $opened = open(my $env_file,'+<',$env{'user.environment'});	&& &timed_flock($env_file,LOCK_EX)
if ($opened	&&
&& &timed_flock($env_file,LOCK_EX)	tie(my %disk_env,'GDBM_File',$env{'user.environment'},
&&	(&GDBM_WRITER()\|&GDBM_NOLOCK()),0640)) {
tie(my %disk_env,'GDBM_File',$env{'user.environment'},	while (my ($key,$value) = each(%{$newenv})) {
(&GDBM_WRITER()\|&GDBM_NOLOCK()),0640)) {	$disk_env{$key} = $value;
while (my ($key,$value) = each(%{$newenv})) {	}
$disk_env{$key} = $value;	untie(%disk_env);
}
untie(%disk_env);
}
}	}
}	}
return 'ok';	return 'ok';
Line 899 sub userload {	Line 817 sub userload {
while ($filename=readdir(LONIDS)) {	while ($filename=readdir(LONIDS)) {
next if ($filename eq '.' \|\| $filename eq '..');	next if ($filename eq '.' \|\| $filename eq '..');
next if ($filename =~ /publicuser_\d+\.id/);	next if ($filename =~ /publicuser_\d+\.id/);
next if ($filename =~ /^[a-f0-9]+_linked\.id$/);
my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];	my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9];
if ($curtime-$mtime < 1800) { $numusers++; }	if ($curtime-$mtime < 1800) { $numusers++; }
}	}
Line 933 sub spareserver {	Line 850 sub spareserver {
if (ref($spareshash) eq 'HASH') {	if (ref($spareshash) eq 'HASH') {
if (ref($spareshash->{'primary'}) eq 'ARRAY') {	if (ref($spareshash->{'primary'}) eq 'ARRAY') {
foreach my $try_server (@{ $spareshash->{'primary'} }) {	foreach my $try_server (@{ $spareshash->{'primary'} }) {
next unless (&spare_can_host($udom,$uint_dom,$remotesessions,	if ($uint_dom) {
$try_server));	next unless (&spare_can_host($udom,$uint_dom,$remotesessions,
	$try_server));
	}
($spare_server, $lowest_load) =	($spare_server, $lowest_load) =
&compare_server_load($try_server, $spare_server, $lowest_load);	&compare_server_load($try_server, $spare_server, $lowest_load);
}	}
Line 945 sub spareserver {	Line 864 sub spareserver {
if (!$found_server) {	if (!$found_server) {
if (ref($spareshash->{'default'}) eq 'ARRAY') {	if (ref($spareshash->{'default'}) eq 'ARRAY') {
foreach my $try_server (@{ $spareshash->{'default'} }) {	foreach my $try_server (@{ $spareshash->{'default'} }) {
next unless (&spare_can_host($udom,$uint_dom,	if ($uint_dom) {
$remotesessions,$try_server));	next unless (&spare_can_host($udom,$uint_dom,
	$remotesessions,$try_server));
	}
($spare_server, $lowest_load) =	($spare_server, $lowest_load) =
&compare_server_load($try_server, $spare_server, $lowest_load);	&compare_server_load($try_server, $spare_server, $lowest_load);
}	}
Line 955 sub spareserver {	Line 876 sub spareserver {
}	}

if (!$want_server_name) {	if (!$want_server_name) {
	my $protocol = 'http';
	if ($protocol{$spare_server} eq 'https') {
	$protocol = $protocol{$spare_server};
	}
if (defined($spare_server)) {	if (defined($spare_server)) {
my $hostname = &hostname($spare_server);	my $hostname = &hostname($spare_server);
if (defined($hostname)) {	if (defined($hostname)) {
my $protocol = 'http';
if ($protocol{$spare_server} eq 'https') {
$protocol = $protocol{$spare_server};
}
$spare_server = $protocol.'://'.$hostname;	$spare_server = $protocol.'://'.$hostname;
}	}
}	}
Line 970 sub spareserver {	Line 891 sub spareserver {
}	}

sub compare_server_load {	sub compare_server_load {
my ($try_server, $spare_server, $lowest_load, $required) = @_;	my ($try_server, $spare_server, $lowest_load) = @_;

if ($required) {
my ($reqdmajor,$reqdminor) = ($required =~ /^(\d+)\.(\d+)$/);
my $remoterev = &get_server_loncaparev(undef,$try_server);
my ($major,$minor) = ($remoterev =~ /^\'?(\d+)\.(\d+)\.[\w.\-]+\'?$/);
if (($major eq '' && $minor eq '') \|\|
(($reqdmajor > $major) \|\| (($reqdmajor == $major) && ($reqdminor > $minor)))) {
return ($spare_server,$lowest_load);
}
}

my $loadans = &reply('load', $try_server);	my $loadans = &reply('load', $try_server);
my $userloadans = &reply('userload',$try_server);	my $userloadans = &reply('userload',$try_server);
Line 1028 sub find_existing_session {	Line 939 sub find_existing_session {
return;	return;
}	}

# check if user's browser sent load balancer cookie and server still has session
# and is not overloaded.
sub check_for_balancer_cookie {
my ($r,$update_mtime) = @_;
my ($otherserver,$cookie);
my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
if (exists($cookies{'balanceID'})) {
my $balid = $cookies{'balanceID'};
$cookie=&LONCAPA::clean_handle($balid->value);
my $balancedir=$r->dir_config('lonBalanceDir');
if ((-d $balancedir) && (-e "$balancedir/$cookie.id")) {
if ($cookie =~ /^($match_domain)_($match_username)_[a-f0-9]+$/) {
my ($possudom,$possuname) = ($1,$2);
my $has_session = 0;
if ((&domain($possudom) ne '') &&
(&homeserver($possuname,$possudom) ne 'no_host')) {
my $try_server;
my $opened = open(my $idf,'+<',"$balancedir/$cookie.id");
if ($opened) {
flock($idf,LOCK_SH);
while (my $line = <$idf>) {
chomp($line);
if (&hostname($line) ne '') {
$try_server = $line;
last;
}
}
close($idf);
if (($try_server) &&
(&has_user_session($try_server,$possudom,$possuname))) {
my $lowest_load = 30000;
($otherserver,$lowest_load) =
&compare_server_load($try_server,undef,$lowest_load);
if ($otherserver ne '' && $lowest_load < 100) {
$has_session = 1;
} else {
undef($otherserver);
}
}
}
}
if ($has_session) {
if ($update_mtime) {
my $atime = my $mtime = time;
utime($atime,$mtime,"$balancedir/$cookie.id");
}
} else {
unlink("$balancedir/$cookie.id");
}
}
}
}
return ($otherserver,$cookie);
}

sub updatebalcookie {
my ($cookie,$balancer,$lastentry)=@_;
if ($cookie =~ /^($match_domain)\_($match_username)\_[a-f0-9]{32}$/) {
my ($udom,$uname) = ($1,$2);
my $uprimary_id = &domain($udom,'primary');
my $uintdom = &internet_dom($uprimary_id);
my $intdom = &internet_dom($balancer);
my $serverhomedom = &host_domain($balancer);
if (($uintdom ne '') && ($uintdom eq $intdom)) {
return &reply('updatebalcookie:'.&escape($cookie).':'.&escape($lastentry),$balancer);
}
}
return;
}

sub delbalcookie {
my ($cookie,$balancer) =@_;
if ($cookie =~ /^($match_domain)\_($match_username)\_[a-f0-9]{32}$/) {
my ($udom,$uname) = ($1,$2);
my $uprimary_id = &domain($udom,'primary');
my $uintdom = &internet_dom($uprimary_id);
my $intdom = &internet_dom($balancer);
my $serverhomedom = &host_domain($balancer);
if (($uintdom ne '') && ($uintdom eq $intdom)) {
return &reply('delbalcookie:'.&escape($cookie),$balancer);
}
}
}

# -------------------------------- ask if server already has a session for user	# -------------------------------- ask if server already has a session for user
sub has_user_session {	sub has_user_session {
my ($lonid,$udom,$uname) = @_;	my ($lonid,$udom,$uname) = @_;
Line 1125 sub has_user_session {	Line 952 sub has_user_session {
# --------- determine least loaded server in a user's domain which allows login	# --------- determine least loaded server in a user's domain which allows login

sub choose_server {	sub choose_server {
my ($udom,$checkloginvia,$required,$skiploadbal) = @_;	my ($udom,$checkloginvia) = @_;
my %domconfhash = &Apache::loncommon::get_domainconf($udom);	my %domconfhash = &Apache::loncommon::get_domainconf($udom);
my %servers = &get_servers($udom);	my %servers = &get_servers($udom);
my $lowest_load = 30000;	my $lowest_load = 30000;
my ($login_host,$hostname,$portal_path,$isredirect,$balancers);	my ($login_host,$hostname,$portal_path,$isredirect);
if ($skiploadbal) {
($balancers,my $cached)=&is_cached_new('loadbalancing',$udom);
unless (defined($cached)) {
my $cachetime = 606024;
my %domconfig =
&Apache::lonnet::get_dom('configuration',['loadbalancing'],$udom);
if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
$balancers = &do_cache_new('loadbalancing',$udom,$domconfig{'loadbalancing'},
$cachetime);
}
}
}
foreach my $lonhost (keys(%servers)) {	foreach my $lonhost (keys(%servers)) {
my $loginvia;	my $loginvia;
if ($skiploadbal) {
if (ref($balancers) eq 'HASH') {
next if (exists($balancers->{$lonhost}));
}
}
if ($checkloginvia) {	if ($checkloginvia) {
$loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};	$loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};
if ($loginvia) {	if ($loginvia) {
my ($server,$path) = split(/:/,$loginvia);	my ($server,$path) = split(/:/,$loginvia);
($login_host, $lowest_load) =	($login_host, $lowest_load) =
&compare_server_load($server, $login_host, $lowest_load, $required);	&compare_server_load($server, $login_host, $lowest_load);
if ($login_host eq $server) {	if ($login_host eq $server) {
$portal_path = $path;	$portal_path = $path;
$isredirect = 1;	$isredirect = 1;
}	}
} else {	} else {
($login_host, $lowest_load) =	($login_host, $lowest_load) =
&compare_server_load($lonhost, $login_host, $lowest_load, $required);	&compare_server_load($lonhost, $login_host, $lowest_load);
if ($login_host eq $lonhost) {	if ($login_host eq $lonhost) {
$portal_path = '';	$portal_path = '';
$isredirect = '';	$isredirect = '';
Line 1169 sub choose_server {	Line 979 sub choose_server {
}	}
} else {	} else {
($login_host, $lowest_load) =	($login_host, $lowest_load) =
&compare_server_load($lonhost, $login_host, $lowest_load, $required);	&compare_server_load($lonhost, $login_host, $lowest_load);
}	}
}	}
if ($login_host ne '') {	if ($login_host ne '') {
$hostname = &hostname($login_host);	$hostname = &hostname($login_host);
}	}
return ($login_host,$hostname,$portal_path,$isredirect,$lowest_load);	return ($login_host,$hostname,$portal_path,$isredirect);
}

sub get_course_sessions {
my ($cnum,$cdom,$lastactivity) = @_;
my %servers = &internet_dom_servers($cdom);
my %returnhash;
foreach my $server (sort(keys(%servers))) {
my $rep = &reply("coursesessions:$cdom:$cnum:$lastactivity",$server);
my @pairs=split(/\&/,$rep);
unless (($rep eq 'unknown_cmd') \|\| ($rep =~ /^error/)) {
foreach my $item (@pairs) {
my ($key,$value)=split(/=/,$item,2);
$key = &unescape($key);
next if ($key =~ /^error: 2 /);
if (exists($returnhash{$key})) {
next if ($value < $returnhash{$key});
}
$returnhash{$key}=$value;
}
}
}
return %returnhash;
}	}

# --------------------------------------------- Try to change a user's password	# --------------------------------------------- Try to change a user's password
Line 1235 sub changepass {	Line 1023 sub changepass {
} elsif ($answer =~ "invalid_client") {	} elsif ($answer =~ "invalid_client") {
&logthis("$server refused to change $uname in $udom password because ".	&logthis("$server refused to change $uname in $udom password because ".
"it was a reset by e-mail originating from an invalid server.");	"it was a reset by e-mail originating from an invalid server.");
} elsif ($answer =~ "^prioruse") {
&logthis("$server refused to change $uname in $udom password because ".
"the password had been used before");
}	}
return $answer;	return $answer;
}	}
Line 1367 sub can_host_session {	Line 1152 sub can_host_session {
sub spare_can_host {	sub spare_can_host {
my ($udom,$uint_dom,$remotesessions,$try_server)=@_;	my ($udom,$uint_dom,$remotesessions,$try_server)=@_;
my $canhost=1;	my $canhost=1;
my $try_server_hostname = &hostname($try_server);	my @intdoms;
my $serverhomeID = &get_server_homeID($try_server_hostname);	my $internet_names = &Apache::lonnet::get_internet_names($try_server);
my $serverhomedom = &host_domain($serverhomeID);	if (ref($internet_names) eq 'ARRAY') {
my %defdomdefaults = &get_domain_defaults($serverhomedom);	@intdoms = @{$internet_names};
if (ref($defdomdefaults{'offloadnow'}) eq 'HASH') {	}
if ($defdomdefaults{'offloadnow'}{$try_server}) {	unless (grep(/^\Q$uint_dom\E$/,@intdoms)) {
$canhost = 0;	my $serverhomeID = &Apache::lonnet::get_server_homeID($try_server);
}	my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
}	my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
if ($canhost) {	my $remoterev = &Apache::lonnet::get_server_loncaparev(undef,$try_server);
if (ref($defdomdefaults{'offloadoth'}) eq 'HASH') {	$canhost = &can_host_session($udom,$try_server,$remoterev,
if ($defdomdefaults{'offloadoth'}{$try_server}) {	$remotesessions,
unless (&shared_institution($udom,$try_server)) {	$defdomdefaults{'hostedsessions'});
$canhost = 0;
}
}
}
}
if (($canhost) && ($uint_dom)) {
my @intdoms;
my $internet_names = &get_internet_names($try_server);
if (ref($internet_names) eq 'ARRAY') {
@intdoms = @{$internet_names};
}
unless (grep(/^\Q$uint_dom\E$/,@intdoms)) {
my $remoterev = &get_server_loncaparev(undef,$try_server);
$canhost = &can_host_session($udom,$try_server,$remoterev,
$remotesessions,
$defdomdefaults{'hostedsessions'});
}
}	}
return $canhost;	return $canhost;
}	}
Line 1481 sub get_lonbalancer_config {	Line 1249 sub get_lonbalancer_config {
}	}

sub check_loadbalancing {	sub check_loadbalancing {
my ($uname,$udom,$caller) = @_;	my ($uname,$udom) = @_;
my ($is_balancer,$currtargets,$currrules,$dom_in_use,$homeintdom,	my ($is_balancer,$currtargets,$currrules,$dom_in_use,$homeintdom,
$rule_in_effect,$offloadto,$otherserver,$setcookie);	$rule_in_effect,$offloadto,$otherserver);
my $lonhost = $perlvar{'lonHostID'};	my $lonhost = $perlvar{'lonHostID'};
my @hosts = &current_machine_ids();	my @hosts = &current_machine_ids();
my $uprimary_id = &Apache::lonnet::domain($udom,'primary');	my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
my $uintdom = &Apache::lonnet::internet_dom($uprimary_id);	my $uintdom = &Apache::lonnet::internet_dom($uprimary_id);
my $intdom = &Apache::lonnet::internet_dom($lonhost);	my $intdom = &Apache::lonnet::internet_dom($lonhost);
my $serverhomedom = &host_domain($lonhost);	my $serverhomedom = &host_domain($lonhost);
my $domneedscache;
my $cachetime = 606024;	my $cachetime = 606024;

if (($uintdom ne '') && ($uintdom eq $intdom)) {	if (($uintdom ne '') && ($uintdom eq $intdom)) {
Line 1505 sub check_loadbalancing {	Line 1273 sub check_loadbalancing {
&Apache::lonnet::get_dom('configuration',['loadbalancing'],$dom_in_use);	&Apache::lonnet::get_dom('configuration',['loadbalancing'],$dom_in_use);
if (ref($domconfig{'loadbalancing'}) eq 'HASH') {	if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
$result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);	$result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);
} else {
$domneedscache = $dom_in_use;
}	}
}	}
if (ref($result) eq 'HASH') {	if (ref($result) eq 'HASH') {
($is_balancer,$currtargets,$currrules,$setcookie) =	($is_balancer,$currtargets,$currrules) =
&check_balancer_result($result,@hosts);	&check_balancer_result($result,@hosts);
if ($is_balancer) {	if ($is_balancer) {
if (ref($currrules) eq 'HASH') {	if (ref($currrules) eq 'HASH') {
Line 1565 sub check_loadbalancing {	Line 1331 sub check_loadbalancing {
my %domconfig =	my %domconfig =
&Apache::lonnet::get_dom('configuration',['loadbalancing'],$serverhomedom);	&Apache::lonnet::get_dom('configuration',['loadbalancing'],$serverhomedom);
if (ref($domconfig{'loadbalancing'}) eq 'HASH') {	if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
$result = &do_cache_new('loadbalancing',$serverhomedom,$domconfig{'loadbalancing'},$cachetime);	$result = &do_cache_new('loadbalancing',$dom_in_use,$domconfig{'loadbalancing'},$cachetime);
} else {
$domneedscache = $serverhomedom;
}	}
}	}
if (ref($result) eq 'HASH') {	if (ref($result) eq 'HASH') {
($is_balancer,$currtargets,$currrules,$setcookie) =	($is_balancer,$currtargets,$currrules) =
&check_balancer_result($result,@hosts);	&check_balancer_result($result,@hosts);
if ($is_balancer) {	if ($is_balancer) {
if (ref($currrules) eq 'HASH') {	if (ref($currrules) eq 'HASH') {
Line 1587 sub check_loadbalancing {	Line 1351 sub check_loadbalancing {
$is_balancer = 1;	$is_balancer = 1;
$offloadto = &this_host_spares($dom_in_use);	$offloadto = &this_host_spares($dom_in_use);
}	}
unless (defined($cached)) {
$domneedscache = $serverhomedom;
}
}	}
} else {	} else {
if ($perlvar{'lonBalancer'} eq 'yes') {	if ($perlvar{'lonBalancer'} eq 'yes') {
$is_balancer = 1;	$is_balancer = 1;
$offloadto = &this_host_spares($dom_in_use);	$offloadto = &this_host_spares($dom_in_use);
}	}
unless (defined($cached)) {
$domneedscache = $serverhomedom;
}
}
if ($domneedscache) {
&do_cache_new('loadbalancing',$domneedscache,$is_balancer,$cachetime);
}	}
if (($is_balancer) && ($caller ne 'switchserver')) {	if ($is_balancer) {
my $lowest_load = 30000;	my $lowest_load = 30000;
if (ref($offloadto) eq 'HASH') {	if (ref($offloadto) eq 'HASH') {
if (ref($offloadto->{'primary'}) eq 'ARRAY') {	if (ref($offloadto->{'primary'}) eq 'ARRAY') {
Line 1632 sub check_loadbalancing {	Line 1387 sub check_loadbalancing {
}	}
}	}
}	}
unless ($caller eq 'login') {	if (($otherserver ne '') && (grep(/^\Q$otherserver\E$/,@hosts))) {
if (($otherserver ne '') && (grep(/^\Q$otherserver\E$/,@hosts))) {	$is_balancer = 0;
$is_balancer = 0;	if ($uname ne '' && $udom ne '') {
if ($uname ne '' && $udom ne '') {	if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) {
if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) {
&appenv({'user.loadbalexempt' => $lonhost,	&appenv({'user.loadbalexempt' => $lonhost,
'user.loadbalcheck.time' => time});	'user.loadbalcheck.time' => time});
}
}	}
}	}
}	}
}	}
if (($is_balancer) && (!$homeintdom)) {	return ($is_balancer,$otherserver);
undef($setcookie);
}
return ($is_balancer,$otherserver,$setcookie);
}	}

sub check_balancer_result {	sub check_balancer_result {
my ($result,@hosts) = @_;	my ($result,@hosts) = @_;
my ($is_balancer,$currtargets,$currrules,$setcookie);	my ($is_balancer,$currtargets,$currrules);
if (ref($result) eq 'HASH') {	if (ref($result) eq 'HASH') {
if ($result->{'lonhost'} ne '') {	if ($result->{'lonhost'} ne '') {
my $currbalancer = $result->{'lonhost'};	my $currbalancer = $result->{'lonhost'};
Line 1668 sub check_balancer_result {	Line 1419 sub check_balancer_result {
$is_balancer = 1;	$is_balancer = 1;
$currrules = $result->{$key}{'rules'};	$currrules = $result->{$key}{'rules'};
$currtargets = $result->{$key}{'targets'};	$currtargets = $result->{$key}{'targets'};
$setcookie = $result->{$key}{'cookie'};
last;	last;
}	}
}	}
}	}
}	}
return ($is_balancer,$currtargets,$currrules,$setcookie);	return ($is_balancer,$currtargets,$currrules);
}	}

sub get_loadbalancer_targets {	sub get_loadbalancer_targets {
Line 1779 sub idget {	Line 1529 sub idget {

my %servers = &get_servers($udom,'library');	my %servers = &get_servers($udom,'library');
foreach my $tryserver (keys(%servers)) {	foreach my $tryserver (keys(%servers)) {
my $idlist=join('&', map { &escape($_); } @ids);	my $idlist=join('&',@ids);
$idlist=~tr/A-Z/a-z/;	$idlist=~tr/A-Z/a-z/;
my $reply=&reply("idget:$udom:".$idlist,$tryserver);	my $reply=&reply("idget:$udom:".$idlist,$tryserver);
my @answer=();	my @answer=();
Line 1789 sub idget {	Line 1539 sub idget {
my $i;	my $i;
for ($i=0;$i<=$#ids;$i++) {	for ($i=0;$i<=$#ids;$i++) {
if ($answer[$i]) {	if ($answer[$i]) {
$returnhash{$ids[$i]}=&unescape($answer[$i]);	$returnhash{$ids[$i]}=$answer[$i];
}	}
}	}
}	}
Line 1831 sub idput {	Line 1581 sub idput {
}	}
}	}

# ---------------------------------------- Delete unwanted IDs from ids.db file	# ---------------------------------------- Delete unwanted IDs from ids.db file

sub iddel {	sub iddel {
my ($udom,$idshashref,$uhome)=@_;	my ($udom,$idshashref,$uhome)=@_;
Line 1876 sub dump_dom {	Line 1626 sub dump_dom {

sub get_dom {	sub get_dom {
my ($namespace,$storearr,$udom,$uhome)=@_;	my ($namespace,$storearr,$udom,$uhome)=@_;
return if ($udom eq 'public');
my $items='';	my $items='';
foreach my $item (@$storearr) {	foreach my $item (@$storearr) {
$items.=&escape($item).'&';	$items.=&escape($item).'&';
Line 1884 sub get_dom {	Line 1633 sub get_dom {
$items=~s/\&$//;	$items=~s/\&$//;
if (!$udom) {	if (!$udom) {
$udom=$env{'user.domain'};	$udom=$env{'user.domain'};
return if ($udom eq 'public');
if (defined(&domain($udom,'primary'))) {	if (defined(&domain($udom,'primary'))) {
$uhome=&domain($udom,'primary');	$uhome=&domain($udom,'primary');
} else {	} else {
Line 1898 sub get_dom {	Line 1646 sub get_dom {
}	}
}	}
if ($udom && $uhome && ($uhome ne 'no_host')) {	if ($udom && $uhome && ($uhome ne 'no_host')) {
my $rep;	my $rep=&reply("getdom:$udom:$namespace:$items",$uhome);
if (grep { $_ eq $uhome } &current_machine_ids()) {
# domain information is hosted on this machine
my $cmd = 'getdom';
if ($namespace =~ /^enc/) {
$cmd = 'egetdom';
}
$rep = &LONCAPA::Lond::get_dom("$cmd:$udom:$namespace:$items");
} else {
if ($namespace =~ /^enc/) {
$rep=&reply("encrypt:egetdom:$udom:$namespace:$items",$uhome);
} else {
$rep=&reply("getdom:$udom:$namespace:$items",$uhome);
}
}
my %returnhash;	my %returnhash;
if ($rep eq '' \|\| $rep =~ /^error: 2 /) {	if ($rep eq '' \|\| $rep =~ /^error: 2 /) {
return %returnhash;	return %returnhash;
Line 1956 sub put_dom {	Line 1690 sub put_dom {
$items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';	$items.=&escape($item).'='.&freeze_escape($$storehash{$item}).'&';
}	}
$items=~s/\&$//;	$items=~s/\&$//;
if ($namespace =~ /^enc/) {	return &reply("putdom:$udom:$namespace:$items",$uhome);
return &reply("encrypt:putdom:$udom:$namespace:$items",$uhome);
} else {
return &reply("putdom:$udom:$namespace:$items",$uhome);
}
} else {	} else {
&logthis("put_dom failed - no homeserver and/or domain");	&logthis("put_dom failed - no homeserver and/or domain");
}	}
Line 2006 sub retrieve_inst_usertypes {	Line 1736 sub retrieve_inst_usertypes {
my %domdefs = &Apache::lonnet::get_domain_defaults($udom);	my %domdefs = &Apache::lonnet::get_domain_defaults($udom);
if ((ref($domdefs{'inststatustypes'}) eq 'HASH') &&	if ((ref($domdefs{'inststatustypes'}) eq 'HASH') &&
(ref($domdefs{'inststatusorder'}) eq 'ARRAY')) {	(ref($domdefs{'inststatusorder'}) eq 'ARRAY')) {
return ($domdefs{'inststatustypes'},$domdefs{'inststatusorder'});	%returnhash = %{$domdefs{'inststatustypes'}};
	@order = @{$domdefs{'inststatusorder'}};
} else {	} else {
if (defined(&domain($udom,'primary'))) {	if (defined(&domain($udom,'primary'))) {
my $uhome=&domain($udom,'primary');	my $uhome=&domain($udom,'primary');
my $rep=&reply("inst_usertypes:$udom",$uhome);	my $rep=&reply("inst_usertypes:$udom",$uhome);
if ($rep =~ /^(con_lost\|error\|no_such_host\|refused)/) {	if ($rep =~ /^(con_lost\|error\|no_such_host\|refused)/) {
&logthis("retrieve_inst_usertypes failed - $rep returned from $uhome in domain: $udom");	&logthis("get_dom failed - $rep returned from $uhome in domain: $udom");
return (\%returnhash,\@order);	return (\%returnhash,\@order);
}	}
my ($hashitems,$orderitems) = split(/:/,$rep);	my ($hashitems,$orderitems) = split(/:/,$rep);
Line 2028 sub retrieve_inst_usertypes {	Line 1759 sub retrieve_inst_usertypes {
push(@order,&unescape($item));	push(@order,&unescape($item));
}	}
} else {	} else {
&logthis("retrieve_inst_usertypes failed - no primary domain server for $udom");	&logthis("get_dom failed - no primary domain server for $udom");
}	}
return (\%returnhash,\@order);
}	}
	return (\%returnhash,\@order);
}	}

sub is_domainimage {	sub is_domainimage {
my ($url) = @_;	my ($url) = @_;
if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img\|logo\|domlogo)/+[^/]-) {	if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img\|logo\|domlogo)/+-) {
if (&domain($1) ne '') {	if (&domain($1) ne '') {
return '1';	return '1';
}	}
Line 2051 sub inst_directory_query {	Line 1782 sub inst_directory_query {
my $homeserver = &domain($udom,'primary');	my $homeserver = &domain($udom,'primary');
my $outcome;	my $outcome;
if ($homeserver ne '') {	if ($homeserver ne '') {
unless ($homeserver eq $perlvar{'lonHostID'}) {
if ($srch->{'srchby'} eq 'email') {
my $lcrev = &get_server_loncaparev($udom,$homeserver);
my ($major,$minor,$subver) = ($lcrev =~ /^\'?(\d+)\.(\d+)\.(\d+)[\w.\-]+\'?$/);
if (($major eq '' && $minor eq '') \|\| ($major < 2) \|\|
(($major == 2) && ($minor < 11)) \|\|
(($major == 2) && ($minor == 11) && ($subver < 3))) {
return;
}
}
}
my $queryid=&reply("querysend:instdirsearch:".	my $queryid=&reply("querysend:instdirsearch:".
&escape($srch->{'srchby'}).':'.	&escape($srch->{'srchby'}).':'.
&escape($srch->{'srchterm'}).':'.	&escape($srch->{'srchterm'}).':'.
&escape($srch->{'srchtype'}),$homeserver);	&escape($srch->{'srchtype'}),$homeserver);
my $host=&hostname($homeserver);	my $host=&hostname($homeserver);
if ($queryid !~/^\Q$host\E\_/) {	if ($queryid !~/^\Q$host\E\_/) {
&logthis('institutional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.' in domain '.$udom);	&logthis('instituional directory search invalid queryid: '.$queryid.' for host: '.$homeserver.'in domain '.$udom);
return;	return;
}	}
my $response = &get_query_reply($queryid);	my $response = &get_query_reply($queryid);
Line 2103 sub usersearch {	Line 1823 sub usersearch {
my $query = 'usersearch';	my $query = 'usersearch';
foreach my $tryserver (keys(%libserv)) {	foreach my $tryserver (keys(%libserv)) {
if (&host_domain($tryserver) eq $dom) {	if (&host_domain($tryserver) eq $dom) {
unless ($tryserver eq $perlvar{'lonHostID'}) {
if ($srch->{'srchby'} eq 'email') {
my $lcrev = &get_server_loncaparev($dom,$tryserver);
my ($major,$minor,$subver) = ($lcrev =~ /^\'?(\d+)\.(\d+)\.(\d+)[\w.\-]+\'?$/);
next if (($major eq '' && $minor eq '') \|\| ($major < 2) \|\|
(($major == 2) && ($minor < 11)) \|\|
(($major == 2) && ($minor == 11) && ($subver < 3)));
}
}
my $host=&hostname($tryserver);	my $host=&hostname($tryserver);
my $queryid=	my $queryid=
&reply("querysend:".&escape($query).':'.	&reply("querysend:".&escape($query).':'.
Line 2197 sub get_instuser {	Line 1908 sub get_instuser {
return ($outcome,%userinfo);	return ($outcome,%userinfo);
}	}

sub get_multiple_instusers {
my ($udom,$users,$caller) = @_;
my ($outcome,$results);
if (ref($users) eq 'HASH') {
my $count = keys(%{$users});
my $requested = &freeze_escape($users);
my $homeserver = &domain($udom,'primary');
if ($homeserver ne '') {
my $queryid=&reply('querysend:getmultinstusers:::'.$caller.'='.$requested,$homeserver);
my $host=&hostname($homeserver);
if ($queryid !~/^\Q$host\E\_/) {
&logthis('get_multiple_instusers invalid queryid: '.$queryid.
' for host: '.$homeserver.'in domain '.$udom);
return ($outcome,$results);
}
my $response = &get_query_reply($queryid);
my $maxtries = 5;
if ($count > 100) {
$maxtries = 1+int($count/20);
}
my $tries = 1;
while (($response=~/^timeout/) && ($tries <= $maxtries)) {
$response = &get_query_reply($queryid);
$tries ++;
}
if ($response eq '') {
$results = {};
foreach my $key (keys(%{$users})) {
my ($uname,$id);
if ($caller eq 'id') {
$id = $key;
} else {
$uname = $key;
}
my ($resp,%info) = &get_instuser($udom,$uname,$id);
$outcome = $resp;
if ($resp eq 'ok') {
%{$results} = (%{$results}, %info);
} else {
last;
}
}
} elsif(!&error($response) && ($response ne 'refused')) {
if (($response eq 'unavailable') \|\| ($response eq 'invalid') \|\| ($response eq 'timeout')) {
$outcome = $response;
} else {
($outcome,my $userdata) = split(/=/,$response,2);
if ($outcome eq 'ok') {
$results = &thaw_unescape($userdata);
}
}
}
}
}
return ($outcome,$results);
}

sub inst_rulecheck {	sub inst_rulecheck {
my ($udom,$uname,$id,$item,$rules) = @_;	my ($udom,$uname,$id,$item,$rules) = @_;
my %returnhash;	my %returnhash;
Line 2349 sub get_domain_defaults {	Line 2003 sub get_domain_defaults {
&Apache::lonnet::get_dom('configuration',['defaults','quotas',	&Apache::lonnet::get_dom('configuration',['defaults','quotas',
'requestcourses','inststatus',	'requestcourses','inststatus',
'coursedefaults','usersessions',	'coursedefaults','usersessions',
'requestauthor','selfenrollment',	'requestauthor'],$domain);
'coursecategories','autoenroll',
'helpsettings'],$domain);
my @coursetypes = ('official','unofficial','community','textbook');
if (ref($domconfig{'defaults'}) eq 'HASH') {	if (ref($domconfig{'defaults'}) eq 'HASH') {
$domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};	$domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};
$domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};	$domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
Line 2360 sub get_domain_defaults {	Line 2011 sub get_domain_defaults {
$domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'};	$domdefaults{'timezone_def'} = $domconfig{'defaults'}{'timezone_def'};
$domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'};	$domdefaults{'datelocale_def'} = $domconfig{'defaults'}{'datelocale_def'};
$domdefaults{'portal_def'} = $domconfig{'defaults'}{'portal_def'};	$domdefaults{'portal_def'} = $domconfig{'defaults'}{'portal_def'};
$domdefaults{'intauth_cost'} = $domconfig{'defaults'}{'intauth_cost'};
$domdefaults{'intauth_switch'} = $domconfig{'defaults'}{'intauth_switch'};
$domdefaults{'intauth_check'} = $domconfig{'defaults'}{'intauth_check'};
} else {	} else {
$domdefaults{'lang_def'} = &domain($domain,'lang_def');	$domdefaults{'lang_def'} = &domain($domain,'lang_def');
$domdefaults{'auth_def'} = &domain($domain,'auth_def');	$domdefaults{'auth_def'} = &domain($domain,'auth_def');
Line 2385 sub get_domain_defaults {	Line 2033 sub get_domain_defaults {
}	}
}	}
if (ref($domconfig{'requestcourses'}) eq 'HASH') {	if (ref($domconfig{'requestcourses'}) eq 'HASH') {
foreach my $item ('official','unofficial','community','textbook') {	foreach my $item ('official','unofficial','community') {
$domdefaults{$item} = $domconfig{'requestcourses'}{$item};	$domdefaults{$item} = $domconfig{'requestcourses'}{$item};
}	}
}	}
Line 2393 sub get_domain_defaults {	Line 2041 sub get_domain_defaults {
$domdefaults{'requestauthor'} = $domconfig{'requestauthor'};	$domdefaults{'requestauthor'} = $domconfig{'requestauthor'};
}	}
if (ref($domconfig{'inststatus'}) eq 'HASH') {	if (ref($domconfig{'inststatus'}) eq 'HASH') {
foreach my $item ('inststatustypes','inststatusorder','inststatusguest') {	foreach my $item ('inststatustypes','inststatusorder') {
$domdefaults{$item} = $domconfig{'inststatus'}{$item};	$domdefaults{$item} = $domconfig{'inststatus'}{$item};
}	}
}	}
if (ref($domconfig{'coursedefaults'}) eq 'HASH') {	if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
$domdefaults{'usejsme'} = $domconfig{'coursedefaults'}{'usejsme'};	$domdefaults{'canuse_pdfforms'} = $domconfig{'coursedefaults'}{'canuse_pdfforms'};
$domdefaults{'uselcmath'} = $domconfig{'coursedefaults'}{'uselcmath'};	if (ref($domconfig{'coursedefaults'}{'coursecredits'}) eq 'HASH') {
if (ref($domconfig{'coursedefaults'}{'postsubmit'}) eq 'HASH') {	$domdefaults{'officialcredits'} = $domconfig{'coursedefaults'}{'coursecredits'}{'official'};
$domdefaults{'postsubmit'} = $domconfig{'coursedefaults'}{'postsubmit'}{'client'};	$domdefaults{'unofficialcredits'} = $domconfig{'coursedefaults'}{'coursecredits'}{'unofficial'};
}	}
foreach my $type (@coursetypes) {	if (ref($domconfig{'coursedefaults'}{'uploadquota'}) eq 'HASH') {
if (ref($domconfig{'coursedefaults'}{'coursecredits'}) eq 'HASH') {	$domdefaults{'officialquota'} = $domconfig{'coursedefaults'}{'uploadquota'}{'official'};
unless ($type eq 'community') {	$domdefaults{'unofficialquota'} = $domconfig{'coursedefaults'}{'uploadquota'}{'unofficial'};
$domdefaults{$type.'credits'} = $domconfig{'coursedefaults'}{'coursecredits'}{$type};	$domdefaults{'communityquota'} = $domconfig{'coursedefaults'}{'uploadquota'}{'community'};
}
}
if (ref($domconfig{'coursedefaults'}{'uploadquota'}) eq 'HASH') {
$domdefaults{$type.'quota'} = $domconfig{'coursedefaults'}{'uploadquota'}{$type};
}
if ($domdefaults{'postsubmit'} eq 'on') {
if (ref($domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}) eq 'HASH') {
$domdefaults{$type.'postsubtimeout'} =
$domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}{$type};
}
}
}
if (ref($domconfig{'coursedefaults'}{'canclone'}) eq 'HASH') {
if (ref($domconfig{'coursedefaults'}{'canclone'}{'instcode'}) eq 'ARRAY') {
my @clonecodes = @{$domconfig{'coursedefaults'}{'canclone'}{'instcode'}};
if (@clonecodes) {
$domdefaults{'canclone'} = join('+',@clonecodes);
}
}
} elsif ($domconfig{'coursedefaults'}{'canclone'}) {
$domdefaults{'canclone'}=$domconfig{'coursedefaults'}{'canclone'};
}
if ($domconfig{'coursedefaults'}{'texengine'}) {
$domdefaults{'texengine'} = $domconfig{'coursedefaults'}{'texengine'};
}	}
}	}
if (ref($domconfig{'usersessions'}) eq 'HASH') {	if (ref($domconfig{'usersessions'}) eq 'HASH') {
Line 2440 sub get_domain_defaults {	Line 2064 sub get_domain_defaults {
if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') {	if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') {
$domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'};	$domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'};
}	}
if (ref($domconfig{'usersessions'}{'offloadnow'}) eq 'HASH') {
$domdefaults{'offloadnow'} = $domconfig{'usersessions'}{'offloadnow'};
}
if (ref($domconfig{'usersessions'}{'offloadoth'}) eq 'HASH') {
$domdefaults{'offloadoth'} = $domconfig{'usersessions'}{'offloadoth'};
}
}
if (ref($domconfig{'selfenrollment'}) eq 'HASH') {
if (ref($domconfig{'selfenrollment'}{'admin'}) eq 'HASH') {
my @settings = ('types','registered','enroll_dates','access_dates','section',
'approval','limit');
foreach my $type (@coursetypes) {
if (ref($domconfig{'selfenrollment'}{'admin'}{$type}) eq 'HASH') {
my @mgrdc = ();
foreach my $item (@settings) {
if ($domconfig{'selfenrollment'}{'admin'}{$type}{$item} eq '0') {
push(@mgrdc,$item);
}
}
if (@mgrdc) {
$domdefaults{$type.'selfenrolladmdc'} = join(',',@mgrdc);
}
}
}
}
if (ref($domconfig{'selfenrollment'}{'default'}) eq 'HASH') {
foreach my $type (@coursetypes) {
if (ref($domconfig{'selfenrollment'}{'default'}{$type}) eq 'HASH') {
foreach my $item (keys(%{$domconfig{'selfenrollment'}{'default'}{$type}})) {
$domdefaults{$type.'selfenroll'.$item} = $domconfig{'selfenrollment'}{'default'}{$type}{$item};
}
}
}
}
}
if (ref($domconfig{'coursecategories'}) eq 'HASH') {
$domdefaults{'catauth'} = 'std';
$domdefaults{'catunauth'} = 'std';
if ($domconfig{'coursecategories'}{'auth'}) {
$domdefaults{'catauth'} = $domconfig{'coursecategories'}{'auth'};
}
if ($domconfig{'coursecategories'}{'unauth'}) {
$domdefaults{'catunauth'} = $domconfig{'coursecategories'}{'unauth'};
}
}
if (ref($domconfig{'autoenroll'}) eq 'HASH') {
$domdefaults{'autofailsafe'} = $domconfig{'autoenroll'}{'autofailsafe'};
}
if (ref($domconfig{'helpsettings'}) eq 'HASH') {
$domdefaults{'submitbugs'} = $domconfig{'helpsettings'}{'submitbugs'};
if (ref($domconfig{'helpsettings'}{'adhoc'}) eq 'HASH') {
$domdefaults{'adhocroles'} = $domconfig{'helpsettings'}{'adhoc'};
}
}	}
&do_cache_new('domdefaults',$domain,\%domdefaults,$cachetime);	&do_cache_new('domdefaults',$domain,\%domdefaults,$cachetime);
return %domdefaults;	return %domdefaults;
}	}

sub get_dom_cats {
my ($dom) = @_;
return unless (&domain($dom));
my ($cats,$cached)=&is_cached_new('cats',$dom);
unless (defined($cached)) {
my %domconfig = &get_dom('configuration',['coursecategories'],$dom);
if (ref($domconfig{'coursecategories'}) eq 'HASH') {
if (ref($domconfig{'coursecategories'}{'cats'}) eq 'HASH') {
%{$cats} = %{$domconfig{'coursecategories'}{'cats'}};
} else {
$cats = {};
}
} else {
$cats = {};
}
&Apache::lonnet::do_cache_new('cats',$dom,$cats,3600);
}
return $cats;
}

sub get_dom_instcats {
my ($dom) = @_;
return unless (&domain($dom));
my ($instcats,$cached)=&is_cached_new('instcats',$dom);
unless (defined($cached)) {
my (%coursecodes,%codes,@codetitles,%cat_titles,%cat_order);
my $totcodes = &retrieve_instcodes(\%coursecodes,$dom);
if ($totcodes > 0) {
my $caller = 'global';
if (&auto_instcode_format($caller,$dom,\%coursecodes,\%codes,
\@codetitles,\%cat_titles,\%cat_order) eq 'ok') {
$instcats = {
codes => \%codes,
codetitles => \@codetitles,
cat_titles => \%cat_titles,
cat_order => \%cat_order,
};
&do_cache_new('instcats',$dom,$instcats,3600);
}
}
}
return $instcats;
}

sub retrieve_instcodes {
my ($coursecodes,$dom) = @_;
my $totcodes;
my %courses = &courseiddump($dom,'.',1,'.','.','.',undef,undef,'Course');
foreach my $course (keys(%courses)) {
if (ref($courses{$course}) eq 'HASH') {
if ($courses{$course}{'inst_code'} ne '') {
$$coursecodes{$course} = $courses{$course}{'inst_code'};
$totcodes ++;
}
}
}
return $totcodes;
}

# --------------------------------------------- Get domain config for passwords

sub get_passwdconf {
my ($dom) = @_;
my (%passwdconf,$gotconf,$lookup);
my ($result,$cached)=&is_cached_new('passwdconf',$dom);
if (defined($cached)) {
if (ref($result) eq 'HASH') {
%passwdconf = %{$result};
$gotconf = 1;
}
}
unless ($gotconf) {
my %domconfig = &get_dom('configuration',['passwords'],$dom);
if (ref($domconfig{'passwords'}) eq 'HASH') {
%passwdconf = %{$domconfig{'passwords'}};
}
my $cachetime = 246060;
&do_cache_new('passwdconf',$dom,\%passwdconf,$cachetime);
}
return %passwdconf;
}

sub course_portal_url {
my ($cnum,$cdom) = @_;
my $chome = &homeserver($cnum,$cdom);
my $hostname = &hostname($chome);
my $protocol = $protocol{$chome};
$protocol = 'http' if ($protocol ne 'https');
my %domdefaults = &get_domain_defaults($cdom);
my $firsturl;
if ($domdefaults{'portal_def'}) {
$firsturl = $domdefaults{'portal_def'};
} else {
$firsturl = $protocol.'://'.$hostname;
}
return $firsturl;
}

# --------------------------------------------------- Assign a key to a student	# --------------------------------------------------- Assign a key to a student

sub assign_access_key {	sub assign_access_key {
Line 2832 sub make_key {	Line 2305 sub make_key {
sub devalidate_cache_new {	sub devalidate_cache_new {
my ($name,$id,$debug) = @_;	my ($name,$id,$debug) = @_;
if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }	if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
my $remembered_id=$name.':'.$id;
$id=&make_key($name,$id);	$id=&make_key($name,$id);
$memcache->delete($id);	$memcache->delete($id);
delete($remembered{$remembered_id});	delete($remembered{$id});
delete($accessed{$remembered_id});	delete($accessed{$id});
}	}

sub is_cached_new {	sub is_cached_new {
my ($name,$id,$debug) = @_;	my ($name,$id,$debug) = @_;
my $remembered_id=$name.':'.$id; # this is to avoid make_key (which is slow) for	$id=&make_key($name,$id);
# keys in %remembered hash, which persists for	if (exists($remembered{$id})) {
# duration of request (no restriction on key length).	if ($debug) { &Apache::lonnet::logthis("Early return $id of $remembered{$id} "); }
if (exists($remembered{$remembered_id})) {	$accessed{$id}=[&gettimeofday()];
if ($debug) { &Apache::lonnet::logthis("Early return $remembered_id of $remembered{$remembered_id} "); }
$accessed{$remembered_id}=[&gettimeofday()];
$hits++;	$hits++;
return ($remembered{$remembered_id},1);	return ($remembered{$id},1);
}	}
$id=&make_key($name,$id);
my $value = $memcache->get($id);	my $value = $memcache->get($id);
if (!(defined($value))) {	if (!(defined($value))) {
if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }	if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
Line 2860 sub is_cached_new {	Line 2329 sub is_cached_new {
if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }	if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
$value=undef;	$value=undef;
}	}
&make_room($remembered_id,$value,$debug);	&make_room($id,$value,$debug);
if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }	if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
return ($value,1);	return ($value,1);
}	}

sub do_cache_new {	sub do_cache_new {
my ($name,$id,$value,$time,$debug) = @_;	my ($name,$id,$value,$time,$debug) = @_;
my $remembered_id=$name.':'.$id;
$id=&make_key($name,$id);	$id=&make_key($name,$id);
my $setvalue=$value;	my $setvalue=$value;
if (!defined($setvalue)) {	if (!defined($setvalue)) {
Line 2883 sub do_cache_new {	Line 2351 sub do_cache_new {
$memcache->disconnect_all();	$memcache->disconnect_all();
}	}
# need to make a copy of $value	# need to make a copy of $value
&make_room($remembered_id,$value,$debug);	&make_room($id,$value,$debug);
return $value;	return $value;
}	}

sub make_room {	sub make_room {
my ($remembered_id,$value,$debug)=@_;	my ($id,$value,$debug)=@_;

$remembered{$remembered_id}= (ref($value)) ? &Storable::dclone($value)	$remembered{$id}= (ref($value)) ? &Storable::dclone($value)
: $value;	: $value;
if ($to_remember<0) { return; }	if ($to_remember<0) { return; }
$accessed{$remembered_id}=[&gettimeofday()];	$accessed{$id}=[&gettimeofday()];
if (scalar(keys(%remembered)) <= $to_remember) { return; }	if (scalar(keys(%remembered)) <= $to_remember) { return; }
my $to_kick;	my $to_kick;
my $max_time=0;	my $max_time=0;
Line 3131 sub repcopy {	Line 2599 sub repcopy {
}	}
}	}

# ------------------------------------------------- Unsubscribe from a resource

sub unsubscribe {
my ($fname) = @_;
my $answer;
if ($fname=~/\/(aboutme\|syllabus\|bulletinboard\|smppg)$/) { return $answer; }
$fname=~s/[\n\r]//g;
my $author=$fname;
$author=~s/\/home\/httpd\/html\/res\/([^\/])\/([^\/]).*/$1\/$2/;
my ($udom,$uname)=split(/\//,$author);
my $home=homeserver($uname,$udom);
if ($home eq 'no_host') {
$answer = 'no_host';
} elsif (grep { $_ eq $home } &current_machine_ids()) {
$answer = 'home';
} else {
$answer = reply("unsub:$fname",$home);
}
return $answer;
}

# ------------------------------------------------ Get server side include body	# ------------------------------------------------ Get server side include body
sub ssi_body {	sub ssi_body {
my ($filelink,%form)=@_;	my ($filelink,%form)=@_;
Line 3201 sub absolute_url {	Line 2648 sub absolute_url {
sub ssi {	sub ssi {

my ($fn,%form)=@_;	my ($fn,%form)=@_;
my ($request,$response);	my $ua=new LWP::UserAgent;
	my $request;

$form{'no_update_last_known'}=1;	$form{'no_update_last_known'}=1;
&Apache::lonenc::check_encrypt(\$fn);	&Apache::lonenc::check_encrypt(\$fn);
if (%form) {	if (%form) {
$request=new HTTP::Request('POST',&absolute_url().$fn);	$request=new HTTP::Request('POST',&absolute_url().$fn);
$request->content(join('&',map {	$request->content(join('&',map { &escape($_).'='.&escape($form{$_}) } keys(%form)));
my $name = escape($_);
"$name=" . ( ref($form{$_}) eq 'ARRAY'
? join("&$name=", map {escape($_) } @{$form{$_}})
: &escape($form{$_}) );
} keys(%form)));
} else {	} else {
$request=new HTTP::Request('GET',&absolute_url().$fn);	$request=new HTTP::Request('GET',&absolute_url().$fn);
}	}

$request->header(Cookie => $ENV{'HTTP_COOKIE'});	$request->header(Cookie => $ENV{'HTTP_COOKIE'});
	my $response= $ua->request($request);
	my $content = $response->content;


if (($env{'request.course.id'}) &&
($form{'grade_courseid'} eq $env{'request.course.id'}) &&
($form{'grade_username'} ne '') && ($form{'grade_domain'} ne '') &&
($form{'grade_symb'} ne '') &&
(&Apache::lonnet::allowed('mgr',$env{'request.course.id'}.
($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
if (LWP::UserAgent->VERSION >= 5.834) {
my $ua=new LWP::UserAgent;
$ua->local_address('127.0.0.1');
$response = $ua->request($request);
} else {
{
require LWP::Protocol::http;
local @LWP::Protocol::http::EXTRA_SOCK_OPTS = (LocalAddr => '127.0.0.1');
my $ua=new LWP::UserAgent;
$response = $ua->request($request);
@LWP::Protocol::http::EXTRA_SOCK_OPTS = ();
}
}
} else {
my $ua=new LWP::UserAgent;
$response = $ua->request($request);
}
if (wantarray) {	if (wantarray) {
return ($response->content, $response);	return ($content, $response);
} else {	} else {
return $response->content;	return $content;
}	}
}	}

Line 3261 sub externalssi {	Line 2684 sub externalssi {
}	}
}	}

# If the local copy of a replicated resource is outdated, trigger a
# connection from the homeserver to flush the delayed queue. If no update
# happens, remove local copies of outdated resource (and corresponding
# metadata file).

sub remove_stale_resfile {
my ($url) = @_;
my $removed;
if ($url=~m{^/res/($match_domain)/($match_username)/}) {
my $audom = $1;
my $auname = $2;
unless (($url =~ /\.\d+\.\w+$/) \|\| ($url =~ m{^/res/lib/templates/})) {
my $homeserver = &homeserver($auname,$audom);
unless (($homeserver eq 'no_host') \|\|
(grep { $_ eq $homeserver } &current_machine_ids())) {
my $fname = &filelocation('',$url);
if (-e $fname) {
my $hostname = &hostname($homeserver);
if ($hostname) {
my $protocol = $protocol{$homeserver};
$protocol = 'http' if ($protocol ne 'https');
my $uri = $protocol.'://'.$hostname.'/raw/'.&declutter($url);
my $ua=new LWP::UserAgent;
$ua->timeout(5);
my $request=new HTTP::Request('HEAD',$uri);
my $response=$ua->request($request);
if ($response->is_success()) {
my $remmodtime = &HTTP::Date::str2time( $response->header('Last-modified') );
my $locmodtime = (stat($fname))[9];
if ($locmodtime < $remmodtime) {
my $stale;
my $answer = &reply('pong',$homeserver);
if ($answer eq $homeserver.':'.$perlvar{'lonHostID'}) {
sleep(0.2);
$locmodtime = (stat($fname))[9];
if ($locmodtime < $remmodtime) {
my $posstransfer = $fname.'.in.transfer';
if ((-e $posstransfer) && ($remmodtime < (stat($posstransfer))[9])) {
$removed = 1;
} else {
$stale = 1;
}
} else {
$removed = 1;
}
} else {
$stale = 1;
}
if ($stale) {
if (unlink($fname)) {
if ($uri!~/\.meta$/) {
if (-e $fname.'.meta') {
unlink($fname.'.meta');
}
}
my $unsubresult = &unsubscribe($fname);
unless ($unsubresult eq 'ok') {
&logthis("no unsub of $fname from $homeserver, reason: $unsubresult");
}
$removed = 1;
}
}
}
}
}
}
}
}
}
return $removed;
}

# -------------------------------- Allow a /uploaded/ URI to be vouched for	# -------------------------------- Allow a /uploaded/ URI to be vouched for

sub allowuploaded {	sub allowuploaded {
Line 3349 sub allowuploaded {	Line 2700 sub allowuploaded {
#	#
# Determine if the current user should be able to edit a particular resource,	# Determine if the current user should be able to edit a particular resource,
# when viewing in course context.	# when viewing in course context.
# (a) When viewing resource used to determine if "Edit" item is included in	# (a) When viewing resource used to determine if "Edit" item is included in
# Functions.	# Functions.
# (b) When displaying folder contents in course editor, used to determine if	# (b) When displaying folder contents in course editor, used to determine if
# "Edit" link will be displayed alongside resource.	# "Edit" link will be displayed alongside resource.
Line 3357 sub allowuploaded {	Line 2708 sub allowuploaded {
# input: six args -- filename (decluttered), course number, course domain,	# input: six args -- filename (decluttered), course number, course domain,
# url, symb (if registered) and group (if this is a group	# url, symb (if registered) and group (if this is a group
# item -- e.g., bulletin board, group page etc.).	# item -- e.g., bulletin board, group page etc.).
# output: array of five scalars --	# output: array of five scalars --
# $cfile -- url for file editing if editable on current server	# $cfile -- url for file editing if editable on current server
# $home -- homeserver of resource (i.e., for author if published,	# $home -- homeserver of resource (i.e., for author if published,
# or course if uploaded.).	# or course if uploaded.).
# $switchserver -- 1 if server switch will be needed.	# $switchserver -- 1 if server switch will be needed.
# $forceedit -- 1 if icon/link should be to go to edit mode	# $forceedit -- 1 if icon/link should be to go to edit mode
# $forceview -- 1 if icon/link should be to go to view mode	# $forceview -- 1 if icon/link should be to go to view mode
#	#

Line 3451 sub can_edit_resource {	Line 2802 sub can_edit_resource {
$forceedit = 1;	$forceedit = 1;
}	}
$cfile = $resurl;	$cfile = $resurl;
} elsif (($resurl ne '') && (&is_on_map($resurl))) {	} elsif (($resurl ne '') && (&is_on_map($resurl))) {
if ($resurl =~ m{^/adm/$match_domain/$match_username/\d+/smppg\|bulletinboard$}) {	if ($resurl =~ m{^/adm/$match_domain/$match_username/\d+/smppg\|bulletinboard$}) {
$incourse = 1;	$incourse = 1;
if ($env{'form.forceedit'}) {	if ($env{'form.forceedit'}) {
Line 3471 sub can_edit_resource {	Line 2822 sub can_edit_resource {
$forceedit = 1;	$forceedit = 1;
}	}
$cfile = $resurl;	$cfile = $resurl;
} elsif (($resurl =~ m{^/ext/}) && ($symb ne '')) {
my ($map,$id,$res) = &decode_symb($symb);
if ($map =~ /\.page$/) {
$incourse = 1;
if ($env{'form.forceedit'}) {
$forceview = 1;
$cfile = $map;
} else {
$forceedit = 1;
$cfile = '/adm/wrapper'.$resurl;
}
}
} elsif ($resurl =~ m{^/adm/wrapper/adm/$cdom/$cnum/\d+/ext\.tool$}) {
$incourse = 1;
if ($env{'form.forceedit'}) {
$forceview = 1;
} else {
$forceedit = 1;
}
$cfile = $resurl;
} elsif ($resurl =~ m{^/?adm/viewclasslist$}) {	} elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
$incourse = 1;	$incourse = 1;
if ($env{'form.forceedit'}) {	if ($env{'form.forceedit'}) {
Line 3502 sub can_edit_resource {	Line 2833 sub can_edit_resource {
}	}
} elsif ($resurl eq '/res/lib/templates/simpleproblem.problem/smpedit') {	} elsif ($resurl eq '/res/lib/templates/simpleproblem.problem/smpedit') {
my $template = '/res/lib/templates/simpleproblem.problem';	my $template = '/res/lib/templates/simpleproblem.problem';
if (&is_on_map($template)) {	if (&is_on_map($template)) {
$incourse = 1;	$incourse = 1;
$forceview = 1;	$forceview = 1;
$cfile = $template;	$cfile = $template;
}	}
} elsif (($resurl =~ m{^/adm/wrapper/ext/}) && ($env{'form.folderpath'} =~ /^supplemental/)) {	} elsif (($resurl =~ m{^/adm/wrapper/ext/}) && ($env{'form.folderpath'} =~ /^supplemental/)) {
$incourse = 1;	$incourse = 1;
if ($env{'form.forceedit'}) {	if ($env{'form.forceedit'}) {
$forceview = 1;	$forceview = 1;
} else {	} else {
$forceedit = 1;	$forceedit = 1;
}	}
$cfile = $resurl;	$cfile = $resurl;
} elsif (($resurl =~ m{^/adm/wrapper/adm/$cdom/$cnum/\d+/ext\.tool$}) && ($env{'form.folderpath'} =~ /^supplemental/)) {
$incourse = 1;
if ($env{'form.forceedit'}) {
$forceview = 1;
} else {
$forceedit = 1;
}
$cfile = $resurl;
} elsif (($resurl eq '/adm/extresedit') && ($symb \|\| $env{'form.folderpath'})) {	} elsif (($resurl eq '/adm/extresedit') && ($symb \|\| $env{'form.folderpath'})) {
$incourse = 1;	$incourse = 1;
$forceview = 1;	$forceview = 1;
Line 3532 sub can_edit_resource {	Line 2855 sub can_edit_resource {
$cfile = &clutter($res);	$cfile = &clutter($res);
} else {	} else {
$cfile = $env{'form.suppurl'};	$cfile = $env{'form.suppurl'};
my $escfile = &unescape($cfile);	$cfile =~ s{^http://}{};
if ($escfile =~ m{^/adm/$cdom/$cnum/\d+/ext\.tool$}) {	$cfile = '/adm/wrapper/ext/'.$cfile;
$cfile = '/adm/wrapper'.$escfile;
} else {
$escfile =~ s{^http://}{};
$cfile = &escape("/adm/wrapper/ext/$escfile");
}
}	}
} elsif ($resurl =~ m{^/?adm/viewclasslist$}) {	} elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
if ($env{'form.forceedit'}) {	if ($env{'form.forceedit'}) {
Line 3562 sub can_edit_resource {	Line 2880 sub can_edit_resource {
$cfile=$file;	$cfile=$file;
}	}
}	}
if (($cfile ne '') && (!$incourse \|\| $uploaded) &&	if (($cfile ne '') && (!$incourse \|\| $uploaded) &&
(($home ne '') && ($home ne 'no_host'))) {	(($home ne '') && ($home ne 'no_host'))) {
my @ids=&current_machine_ids();	my @ids=&current_machine_ids();
unless (grep(/^\Q$home\E$/,@ids)) {	unless (grep(/^\Q$home\E$/,@ids)) {
Line 3589 sub in_course {	Line 2907 sub in_course {
if ($hideprivileged) {	if ($hideprivileged) {
my $skipuser;	my $skipuser;
my %coursehash = &coursedescription($cdom.'_'.$cnum);	my %coursehash = &coursedescription($cdom.'_'.$cnum);
my @possdoms = ($cdom);	my @possdoms = ($cdom);
if ($coursehash{'checkforpriv'}) {	if ($coursehash{'checkforpriv'}) {
push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));	push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));
}	}
if (&privileged($uname,$udom,\@possdoms)) {	if (&privileged($uname,$udom,\@possdoms)) {
$skipuser = 1;	$skipuser = 1;
Line 3694 sub process_coursefile {	Line 3012 sub process_coursefile {
$home);	$home);
}	}
} elsif ($action eq 'uploaddoc') {	} elsif ($action eq 'uploaddoc') {
open(my $fh,'>',$filepath.'/'.$fname);	open(my $fh,'>'.$filepath.'/'.$fname);
print $fh $env{'form.'.$source};	print $fh $env{'form.'.$source};
close($fh);	close($fh);
if ($parser eq 'parse') {	if ($parser eq 'parse') {
Line 3752 sub store_edited_file {	Line 3070 sub store_edited_file {
($fpath,$fname) = ($file =~ m\|^(.*)/([^/]+)$\|);	($fpath,$fname) = ($file =~ m\|^(.*)/([^/]+)$\|);
$fpath=$docudom.'/'.$docuname.'/'.$fpath;	$fpath=$docudom.'/'.$docuname.'/'.$fpath;
my $filepath = &build_filepath($fpath);	my $filepath = &build_filepath($fpath);
open(my $fh,'>',$filepath.'/'.$fname);	open(my $fh,'>'.$filepath.'/'.$fname);
print $fh $content;	print $fh $content;
close($fh);	close($fh);
my $home=&homeserver($docuname,$docudom);	my $home=&homeserver($docuname,$docudom);
Line 3777 sub clean_filename {	Line 3095 sub clean_filename {
}	}
# Replace spaces by underscores	# Replace spaces by underscores
$fname=~s/\s+/\_/g;	$fname=~s/\s+/\_/g;
# Transliterate non-ascii text to ascii
my $lang = &Apache::lonlocal::current_language();
$fname = &LONCAPA::transliterate::fname_to_ascii($fname,$lang);
# Replace all other weird characters by nothing	# Replace all other weird characters by nothing
$fname=~s{[^/\w\.\-]}{}g;	$fname=~s{[^/\w\.\-]}{}g;
# Replace all .\d. sequences with _\d. so they no longer look like version	# Replace all .\d. sequences with _\d. so they no longer look like version
# numbers	# numbers
$fname=~s/\.(\d+)(?=\.)/_$1/g;	$fname=~s/\.(\d+)(?=\.)/_$1/g;
# Replace three or more adjacent underscores with one for consistency
# with loncfile::filename_check() so complete url can be extracted by
# lonnet::decode_symb()
$fname=~s/_{3,}/_/g;
return $fname;	return $fname;
}	}

# This Function checks if an Image's dimensions exceed either $resizewidth (width)	# This Function checks if an Image's dimensions exceed either $resizewidth (width)
# or $resizeheight (height) - both pixels. If so, the image is scaled to produce an	# or $resizeheight (height) - both pixels. If so, the image is scaled to produce an
# image with the same aspect ratio as the original, but with dimensions which do	# image with the same aspect ratio as the original, but with dimensions which do
Line 3834 sub resizeImage {	Line 3144 sub resizeImage {
# input: $formname - the contents of the file are in $env{"form.$formname"}	# input: $formname - the contents of the file are in $env{"form.$formname"}
# the desired filename is in $env{"form.$formname.filename"}	# the desired filename is in $env{"form.$formname.filename"}
# $context - possible values: coursedoc, existingfile, overwrite,	# $context - possible values: coursedoc, existingfile, overwrite,
# canceloverwrite, scantron or ''.	# canceloverwrite, or ''.
# if 'coursedoc': upload to the current course	# if 'coursedoc': upload to the current course
# if 'existingfile': write file to tmp/overwrites directory	# if 'existingfile': write file to tmp/overwrites directory
# if 'canceloverwrite': delete file written to tmp/overwrites directory	# if 'canceloverwrite': delete file written to tmp/overwrites directory
# $context is passed as argument to &finishuserfileupload	# $context is passed as argument to &finishuserfileupload
# $subdir - directory in userfile to store the file into	# $subdir - directory in userfile to store the file into
# $parser - instruction to parse file for objects ($parser = parse) or	# $parser - instruction to parse file for objects ($parser = parse)
# if context is 'scantron', $parser is hashref of csv column mapping
# (e.g.,{ PaperID => 0, LastName => 1, FirstName => 2, ID => 3,
# Section => 4, CODE => 5, FirstQuestion => 9 }).
# $allfiles - reference to hash for embedded objects	# $allfiles - reference to hash for embedded objects
# $codebase - reference to hash for codebase of java objects	# $codebase - reference to hash for codebase of java objects
# $desuname - username for permanent storage of uploaded file	# $desuname - username for permanent storage of uploaded file
Line 3866 sub userfileupload {	Line 3173 sub userfileupload {
$fname=&clean_filename($fname);	$fname=&clean_filename($fname);
# See if there is anything left	# See if there is anything left
unless ($fname) { return 'error: no uploaded file'; }	unless ($fname) { return 'error: no uploaded file'; }
# If filename now begins with a . prepend unix timestamp _ milliseconds
if ($fname =~ /^\./) {
my ($s,$usec) = &gettimeofday();
while (length($usec) < 6) {
$usec = '0'.$usec;
}
$fname = $s.'_'.substr($usec,0,3).$fname;
}
# Files uploaded to help request form, or uploaded to "create course" page are handled differently	# Files uploaded to help request form, or uploaded to "create course" page are handled differently
if ((($formname eq 'screenshot') && ($subdir eq 'helprequests')) \|\|	if ((($formname eq 'screenshot') && ($subdir eq 'helprequests')) \|\|
(($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) \|\|	(($formname eq 'coursecreatorxml') && ($subdir eq 'batchupload')) \|\|
Line 3887 sub userfileupload {	Line 3186 sub userfileupload {
'_'.$env{'user.domain'}.'/pending';	'_'.$env{'user.domain'}.'/pending';
} elsif (($context eq 'existingfile') \|\| ($context eq 'canceloverwrite')) {	} elsif (($context eq 'existingfile') \|\| ($context eq 'canceloverwrite')) {
my ($docuname,$docudom);	my ($docuname,$docudom);
if ($destudom =~ /^$match_domain$/) {	if ($destudom) {
$docudom = $destudom;	$docudom = $destudom;
} else {	} else {
$docudom = $env{'user.domain'};	$docudom = $env{'user.domain'};
}	}
if ($destuname =~ /^$match_username$/) {	if ($destuname) {
$docuname = $destuname;	$docuname = $destuname;
} else {	} else {
$docuname = $env{'user.name'};	$docuname = $env{'user.name'};
Line 3922 sub userfileupload {	Line 3221 sub userfileupload {
mkdir($fullpath,0777);	mkdir($fullpath,0777);
}	}
}	}
open(my $fh,'>',$fullpath.'/'.$fname);	open(my $fh,'>'.$fullpath.'/'.$fname);
print $fh $env{'form.'.$formname};	print $fh $env{'form.'.$formname};
close($fh);	close($fh);
if ($context eq 'existingfile') {	if ($context eq 'existingfile') {
Line 3997 sub finishuserfileupload {	Line 3296 sub finishuserfileupload {

# Save the file	# Save the file
{	{
if (!open(FH,'>',$filepath.'/'.$file)) {	if (!open(FH,'>'.$filepath.'/'.$file)) {
&logthis('Failed to create '.$filepath.'/'.$file);	&logthis('Failed to create '.$filepath.'/'.$file);
print STDERR ('Failed to create '.$filepath.'/'.$file."\n");	print STDERR ('Failed to create '.$filepath.'/'.$file."\n");
return '/adm/notfound.html';	return '/adm/notfound.html';
Line 4041 sub finishuserfileupload {	Line 3340 sub finishuserfileupload {
}	}
}	}
}	}
if (($context ne 'scantron') && ($parser eq 'parse')) {	if ($parser eq 'parse') {
if ((ref($mimetype)) && ($$mimetype eq 'text/html')) {	if ((ref($mimetype)) && ($$mimetype eq 'text/html')) {
my $parse_result = &extract_embedded_items($filepath.'/'.$file,	my $parse_result = &extract_embedded_items($filepath.'/'.$file,
$allfiles,$codebase);	$allfiles,$codebase);
Line 4050 sub finishuserfileupload {	Line 3349 sub finishuserfileupload {
' for embedded media: '.$parse_result);	' for embedded media: '.$parse_result);
}	}
}	}
} elsif (($context eq 'scantron') && (ref($parser) eq 'HASH')) {
my $format = $env{'form.scantron_format'};
&bubblesheet_converter($docudom,$filepath.'/'.$file,$parser,$format);
}	}
if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {	if (($thumbwidth =~ /^\d+$/) && ($thumbheight =~ /^\d+$/)) {
my $input = $filepath.'/'.$file;	my $input = $filepath.'/'.$file;
my $output = $filepath.'/'.'tn-'.$file;	my $output = $filepath.'/'.'tn-'.$file;
my $thumbsize = $thumbwidth.'x'.$thumbheight;	my $thumbsize = $thumbwidth.'x'.$thumbheight;
my @args = ('convert','-sample',$thumbsize,$input,$output);	system("convert -sample $thumbsize $input $output");
system({$args[0]} @args);
if (-e $filepath.'/'.'tn-'.$file) {	if (-e $filepath.'/'.'tn-'.$file) {
$fetchthumb = 1;	$fetchthumb = 1;
}	}
Line 4118 sub extract_embedded_items {	Line 3413 sub extract_embedded_items {
}	}
if (lc($tagname) eq 'a') {	if (lc($tagname) eq 'a') {
unless (($attr->{'href'} =~ /^#/) \|\| ($attr->{'href'} eq '')) {	unless (($attr->{'href'} =~ /^#/) \|\| ($attr->{'href'} eq '')) {
&add_filetype($allfiles,$attr->{'href'},'href');	&add_filetype($allfiles,$attr->{'href'},'href');
}	}
}	}
if (lc($tagname) eq 'script') {	if (lc($tagname) eq 'script') {
Line 4293 sub embedded_dependency {	Line 3588 sub embedded_dependency {
return;	return;
}	}

sub bubblesheet_converter {
my ($cdom,$fullpath,$config,$format) = @_;
if ((&domain($cdom) ne '') &&
($fullpath =~ m{^\Q$perlvar{'lonDocRoot'}/userfiles/$cdom/\E$match_courseid/scantron_orig}) &&
(-e $fullpath) && (ref($config) eq 'HASH') && ($format ne '')) {
my (%csvcols,%csvoptions);
if (ref($config->{'fields'}) eq 'HASH') {
%csvcols = %{$config->{'fields'}};
}
if (ref($config->{'options'}) eq 'HASH') {
%csvoptions = %{$config->{'options'}};
}
my %csvbynum = reverse(%csvcols);
my %scantronconf = &get_scantron_config($format,$cdom);
if (keys(%scantronconf)) {
my %bynum = (
$scantronconf{CODEstart} => 'CODEstart',
$scantronconf{IDstart} => 'IDstart',
$scantronconf{PaperID} => 'PaperID',
$scantronconf{FirstName} => 'FirstName',
$scantronconf{LastName} => 'LastName',
$scantronconf{Qstart} => 'Qstart',
);
my @ordered;
foreach my $item (sort { $a <=> $b } keys(%bynum)) {
push(@ordered,$bynum{$item});
}
my %mapstart = (
CODEstart => 'CODE',
IDstart => 'ID',
PaperID => 'PaperID',
FirstName => 'FirstName',
LastName => 'LastName',
Qstart => 'FirstQuestion',
);
my %maplength = (
CODEstart => 'CODElength',
IDstart => 'IDlength',
PaperID => 'PaperIDlength',
FirstName => 'FirstNamelength',
LastName => 'LastNamelength',
);
if (open(my $fh,'<',$fullpath)) {
my $output;
my %lettdig = &letter_to_digits();
my %diglett = reverse(%lettdig);
my $numletts = scalar(keys(%lettdig));
my $num = 0;
while (my $line=<$fh>) {
$num ++;
next if (($num == 1) && ($csvoptions{'hdr'} == 1));
$line =~ s{[\r\n]+$}{};
my %found;
my @values = split(/,/,$line);
my ($qstart,$record);
for (my $i=0; $i<@values; $i++) {
if ((($qstart ne '') && ($i > $qstart)) \|\|
($csvbynum{$i} eq 'FirstQuestion')) {
if ($values[$i] eq '') {
$values[$i] = $scantronconf{'Qoff'};
} elsif ($scantronconf{'Qon'} eq 'number') {
if ($values[$i] =~ /^[A-Ja-j]$/) {
$values[$i] = $lettdig{uc($values[$i])};
}
} elsif ($scantronconf{'Qon'} eq 'letter') {
if ($values[$i] =~ /^[0-9]$/) {
$values[$i] = $diglett{$values[$i]};
}
} else {
if ($values[$i] =~ /^[0-9A-Ja-j]$/) {
my $digit;
if ($values[$i] =~ /^[A-Ja-j]$/) {
$digit = $lettdig{uc($values[$i])}-1;
if ($values[$i] eq 'J') {
$digit += $numletts;
}
} elsif ($values[$i] =~ /^[0-9]$/) {
$digit = $values[$i]-1;
if ($values[$i] eq '0') {
$digit += $numletts;
}
}
my $qval='';
for (my $j=0; $j<$scantronconf{'Qlength'}; $j++) {
if ($j == $digit) {
$qval .= $scantronconf{'Qon'};
} else {
$qval .= $scantronconf{'Qoff'};
}
}
$values[$i] = $qval;
}
}
if (length($values[$i]) > $scantronconf{'Qlength'}) {
$values[$i] = substr($values[$i],0,$scantronconf{'Qlength'});
}
my $numblank = $scantronconf{'Qlength'} - length($values[$i]);
if ($numblank > 0) {
$values[$i] .= ($scantronconf{'Qoff'} x $numblank);
}
if ($csvbynum{$i} eq 'FirstQuestion') {
$qstart = $i;
$found{$csvbynum{$i}} = $values[$i];
} else {
$found{'FirstQuestion'} .= $values[$i];
}
} elsif (exists($csvbynum{$i})) {
if ($csvoptions{'rem'}) {
$values[$i] =~ s/^\s+//;
}
if (($csvbynum{$i} eq 'PaperID') && ($csvoptions{'pad'})) {
while (length($values[$i]) < $scantronconf{$maplength{$csvbynum{$i}}}) {
$values[$i] = '0'.$values[$i];
}
}
$found{$csvbynum{$i}} = $values[$i];
}
}
foreach my $item (@ordered) {
my $currlength = 1+length($record);
my $numspaces = $scantronconf{$item} - $currlength;
if ($numspaces > 0) {
$record .= (' ' x $numspaces);
}
if (($mapstart{$item} ne '') && (exists($found{$mapstart{$item}}))) {
unless ($item eq 'Qstart') {
if (length($found{$mapstart{$item}}) > $scantronconf{$maplength{$item}}) {
$found{$mapstart{$item}} = substr($found{$mapstart{$item}},0,$scantronconf{$maplength{$item}});
}
}
$record .= $found{$mapstart{$item}};
}
}
$output .= "$record\n";
}
close($fh);
if ($output) {
if (open(my $fh,'>',$fullpath)) {
print $fh $output;
close($fh);
}
}
}
}
return;
}
}

sub letter_to_digits {
my %lettdig = (
A => 1,
B => 2,
C => 3,
D => 4,
E => 5,
F => 6,
G => 7,
H => 8,
I => 9,
J => 0,
);
return %lettdig;
}

sub get_scantron_config {
my ($which,$cdom) = @_;
my @lines = &get_scantronformat_file($cdom);
my %config;
#FIXME probably should move to XML it has already gotten a bit much now
foreach my $line (@lines) {
my ($name,$descrip)=split(/:/,$line);
if ($name ne $which ) { next; }
chomp($line);
my @config=split(/:/,$line);
$config{'name'}=$config[0];
$config{'description'}=$config[1];
$config{'CODElocation'}=$config[2];
$config{'CODEstart'}=$config[3];
$config{'CODElength'}=$config[4];
$config{'IDstart'}=$config[5];
$config{'IDlength'}=$config[6];
$config{'Qstart'}=$config[7];
$config{'Qlength'}=$config[8];
$config{'Qoff'}=$config[9];
$config{'Qon'}=$config[10];
$config{'PaperID'}=$config[11];
$config{'PaperIDlength'}=$config[12];
$config{'FirstName'}=$config[13];
$config{'FirstNamelength'}=$config[14];
$config{'LastName'}=$config[15];
$config{'LastNamelength'}=$config[16];
$config{'BubblesPerRow'}=$config[17];
last;
}
return %config;
}

sub get_scantronformat_file {
my ($cdom) = @_;
if ($cdom eq '') {
$cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
}
my %domconfig = &get_dom('configuration',['scantron'],$cdom);
my $gottab = 0;
my @lines;
if (ref($domconfig{'scantron'}) eq 'HASH') {
if ($domconfig{'scantron'}{'scantronformat'} ne '') {
my $formatfile = &getfile($perlvar{'lonDocRoot'}.$domconfig{'scantron'}{'scantronformat'});
if ($formatfile ne '-1') {
@lines = split("\n",$formatfile,-1);
$gottab = 1;
}
}
}
if (!$gottab) {
my $confname = $cdom.'-domainconfig';
my $default = $perlvar{'lonDocRoot'}.'/res/'.$cdom.'/'.$confname.'/default.tab';
my $formatfile = &getfile($default);
if ($formatfile ne '-1') {
@lines = split("\n",$formatfile,-1);
$gottab = 1;
}
}
if (!$gottab) {
my @domains = &current_machine_domains();
if (grep(/^\Q$cdom\E$/,@domains)) {
if (open(my $fh,'<',$perlvar{'lonTabDir'}.'/scantronformat.tab')) {
@lines = <$fh>;
close($fh);
}
} else {
if (open(my $fh,'<',$perlvar{'lonTabDir'}.'/default_scantronformat.tab')) {
@lines = <$fh>;
close($fh);
}
}
}
return @lines;
}

sub removeuploadedurl {	sub removeuploadedurl {
my ($url)=@_;	my ($url)=@_;
my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);	my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
Line 4683 sub flushcourselogs {	Line 3738 sub flushcourselogs {
}	}
}	}
#	#
# Reverse lookup of domain roles (dc, ad, li, sc, dh, da, au)	# Reverse lookup of domain roles (dc, ad, li, sc, au)
#	#
my %domrolebuffer = ();	my %domrolebuffer = ();
foreach my $entry (keys(%domainrolehash)) {	foreach my $entry (keys(%domainrolehash)) {
Line 4698 sub flushcourselogs {	Line 3753 sub flushcourselogs {
delete $domainrolehash{$entry};	delete $domainrolehash{$entry};
}	}
foreach my $dom (keys(%domrolebuffer)) {	foreach my $dom (keys(%domrolebuffer)) {
my %servers;	my %servers = &get_servers($dom,'library');
if (defined(&domain($dom,'primary'))) {
my $primary=&domain($dom,'primary');
my $hostname=&hostname($primary);
$servers{$primary} = $hostname;
} else {
%servers = &get_servers($dom,'library');
}
foreach my $tryserver (keys(%servers)) {	foreach my $tryserver (keys(%servers)) {
if (&reply('domroleput:'.$dom.':'.	unless (&reply('domroleput:'.$dom.':'.
$domrolebuffer{$dom},$tryserver) eq 'ok') {	$domrolebuffer{$dom},$tryserver) eq 'ok') {
last;
} else {
&logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);	&logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
}	}
}	}
Line 4759 sub courseacclog {	Line 3805 sub courseacclog {
if ($formitem =~ /^HWFILE(?:SIZE\|TOOBIG)/) {	if ($formitem =~ /^HWFILE(?:SIZE\|TOOBIG)/) {
$what.=':'.$formitem.'='.$env{$key};	$what.=':'.$formitem.'='.$env{$key};
} elsif ($formitem !~ /^HWFILE(?:[^.]+)$/) {	} elsif ($formitem !~ /^HWFILE(?:[^.]+)$/) {
if ($formitem eq 'proctorpassword') {	$what.=':'.$formitem.'='.$env{$key};
$what.=':'.$formitem.'=' . '*' x length($env{$key});
} else {
$what.=':'.$formitem.'='.$env{$key};
}
}	}
}	}
}	}
Line 4834 sub userrolelog {	Line 3876 sub userrolelog {
{$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}	{$trole.':'.$username.':'.$domain.':'.$env{'user.name'}.':'.$env{'user.domain'}.':'}
=$tend.':'.$tstart;	=$tend.':'.$tstart;
}	}
if ($trole =~ /^(dc\|ad\|li\|au\|dg\|sc\|dh\|da)/ ) {	if ($trole =~ /^(dc\|ad\|li\|au\|dg\|sc)/ ) {
my (undef,$rudom,$runame,$rsec)=split(/\//,$area);	my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
$domainrolehash	$domainrolehash
{$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}	{$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
Line 5042 sub get_my_roles {	Line 4084 sub get_my_roles {
} else {	} else {
my $possdoms = [$domain];	my $possdoms = [$domain];
if (ref($roledoms) eq 'ARRAY') {	if (ref($roledoms) eq 'ARRAY') {
push(@{$possdoms},@{$roledoms});	push(@{$possdoms},@{$roledoms});
}	}
if (&privileged($username,$domain,$possdoms,\@privroles)) {	if (&privileged($username,$domain,$possdoms,\@privroles)) {
if (!$nothide{$username.':'.$domain}) {	if (!$nothide{$username.':'.$domain}) {
Line 5061 sub get_my_roles {	Line 4103 sub get_my_roles {
return %returnhash;	return %returnhash;
}	}

sub get_all_adhocroles {
my ($dom) = @_;
my @roles_by_num = ();
my %domdefaults = &get_domain_defaults($dom);
my (%description,%access_in_dom,%access_info);
if (ref($domdefaults{'adhocroles'}) eq 'HASH') {
my $count = 0;
my %domcurrent = %{$domdefaults{'adhocroles'}};
my %ordered;
foreach my $role (sort(keys(%domcurrent))) {
my ($order,$desc,$access_in_dom);
if (ref($domcurrent{$role}) eq 'HASH') {
$order = $domcurrent{$role}{'order'};
$desc = $domcurrent{$role}{'desc'};
$access_in_dom{$role} = $domcurrent{$role}{'access'};
$access_info{$role} = $domcurrent{$role}{$access_in_dom{$role}};
}
if ($order eq '') {
$order = $count;
}
$ordered{$order} = $role;
if ($desc ne '') {
$description{$role} = $desc;
} else {
$description{$role}= $role;
}
$count++;
}
foreach my $item (sort {$a <=> $b } (keys(%ordered))) {
push(@roles_by_num,$ordered{$item});
}
}
return (\@roles_by_num,\%description,\%access_in_dom,\%access_info);
}

sub get_my_adhocroles {
my ($cid,$checkreg) = @_;
my ($cdom,$cnum,%info,@possroles,$description,$roles_by_num);
if ($env{'request.course.id'} eq $cid) {
$cdom = $env{'course.'.$cid.'.domain'};
$cnum = $env{'course.'.$cid.'.num'};
$info{'internal.coursecode'} = $env{'course.'.$cid.'.internal.coursecode'};
} elsif ($cid =~ /^($match_domain)_($match_courseid)$/) {
$cdom = $1;
$cnum = $2;
%info = &Apache::lonnet::get('environment',['internal.coursecode'],
$cdom,$cnum);
}
if (($info{'internal.coursecode'} ne '') && ($checkreg)) {
my $user = $env{'user.name'}.':'.$env{'user.domain'};
my %rosterhash = &get('classlist',[$user],$cdom,$cnum);
if ($rosterhash{$user} ne '') {
my $type = (split(/:/,$rosterhash{$user}))[5];
return ([],{}) if ($type eq 'auto');
}
}
if (($cdom ne '') && ($cnum ne '')) {
if (($env{"user.role.dh./$cdom/"}) \|\| ($env{"user.role.da./$cdom/"})) {
my $then=$env{'user.login.time'};
my $update=$env{'user.update.time'};
if (!$update) {
$update = $then;
}
my @liveroles;
foreach my $role ('dh','da') {
if ($env{"user.role.$role./$cdom/"}) {
my ($tstart,$tend)=split(/\./,$env{"user.role.$role./$cdom/"});
my $limit = $update;
if ($env{'request.role'} eq "$role./$cdom/") {
$limit = $then;
}
my $activerole = 1;
if ($tstart && $tstart>$limit) { $activerole = 0; }
if ($tend && $tend <$limit) { $activerole = 0; }
if ($activerole) {
push(@liveroles,$role);
}
}
}
if (@liveroles) {
if (&homeserver($cnum,$cdom) ne 'no_host') {
my ($accessref,$accessinfo,%access_in_dom);
($roles_by_num,$description,$accessref,$accessinfo) = &get_all_adhocroles($cdom);
if (ref($roles_by_num) eq 'ARRAY') {
if (@{$roles_by_num}) {
my %settings;
if ($env{'request.course.id'} eq $cid) {
foreach my $envkey (keys(%env)) {
if ($envkey =~ /^\Qcourse.$cid.\E(internal\.adhoc.+)$/) {
$settings{$1} = $env{$envkey};
}
}
} else {
%settings = &dump('environment',$cdom,$cnum,'internal\.adhoc');
}
my %setincrs;
if ($settings{'internal.adhocaccess'}) {
map { $setincrs{$_} = 1; } split(/,/,$settings{'internal.adhocaccess'});
}
my @statuses;
if ($env{'environment.inststatus'}) {
@statuses = split(/,/,$env{'environment.inststatus'});
}
my $user = $env{'user.name'}.':'.$env{'user.domain'};
if (ref($accessref) eq 'HASH') {
%access_in_dom = %{$accessref};
}
foreach my $role (@{$roles_by_num}) {
my ($curraccess,@okstatus,@personnel);
if ($setincrs{$role}) {
($curraccess,my $rest) = split(/=/,$settings{'internal.adhoc.'.$role});
if ($curraccess eq 'status') {
@okstatus = split(/\&/,$rest);
} elsif (($curraccess eq 'exc') \|\| ($curraccess eq 'inc')) {
@personnel = split(/\&/,$rest);
}
} else {
$curraccess = $access_in_dom{$role};
if (ref($accessinfo) eq 'HASH') {
if ($curraccess eq 'status') {
if (ref($accessinfo->{$role}) eq 'ARRAY') {
@okstatus = @{$accessinfo->{$role}};
}
} elsif (($curraccess eq 'exc') \|\| ($curraccess eq 'inc')) {
if (ref($accessinfo->{$role}) eq 'ARRAY') {
@personnel = @{$accessinfo->{$role}};
}
}
}
}
if ($curraccess eq 'none') {
next;
} elsif ($curraccess eq 'all') {
push(@possroles,$role);
} elsif ($curraccess eq 'dh') {
if (grep(/^dh$/,@liveroles)) {
push(@possroles,$role);
} else {
next;
}
} elsif ($curraccess eq 'da') {
if (grep(/^da$/,@liveroles)) {
push(@possroles,$role);
} else {
next;
}
} elsif ($curraccess eq 'status') {
if (@okstatus) {
if (!@statuses) {
if (grep(/^default$/,@okstatus)) {
push(@possroles,$role);
}
} else {
foreach my $status (@okstatus) {
if (grep(/^\Q$status\E$/,@statuses)) {
push(@possroles,$role);
last;
}
}
}
}
} elsif (($curraccess eq 'exc') \|\| ($curraccess eq 'inc')) {
if (grep(/^\Q$user\E$/,@personnel)) {
if ($curraccess eq 'exc') {
push(@possroles,$role);
}
} elsif ($curraccess eq 'inc') {
push(@possroles,$role);
}
}
}
}
}
}
}
}
}
unless (ref($description) eq 'HASH') {
if (ref($roles_by_num) eq 'ARRAY') {
my %desc;
map { $desc{$_} = $_; } (@{$roles_by_num});
$description = \%desc;
} else {
$description = {};
}
}
return (\@possroles,$description);
}

# ----------------------------------------------------- Frontpage Announcements	# ----------------------------------------------------- Frontpage Announcements
#	#
#	#
Line 5263 sub postannounce {	Line 4116 sub postannounce {

sub getannounce {	sub getannounce {

if (open(my $fh,"<",$perlvar{'lonDocRoot'}.'/announcement.txt')) {	if (open(my $fh,$perlvar{'lonDocRoot'}.'/announcement.txt')) {
my $announcement='';	my $announcement='';
while (my $line = <$fh>) { $announcement .= $line; }	while (my $line = <$fh>) { $announcement .= $line; }
close($fh);	close($fh);
Line 5325 sub courseiddump {	Line 4178 sub courseiddump {
my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,	my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
$coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,	$coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
$selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,	$selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,
$cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner,	$cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner)=@_;
$hasuniquecode,$reqcrsdom,$reqinstcode)=@_;
my $as_hash = 1;	my $as_hash = 1;
my %returnhash;	my %returnhash;
if (!$domfilter) { $domfilter=''; }	if (!$domfilter) { $domfilter=''; }
Line 5339 sub courseiddump {	Line 4191 sub courseiddump {
if (($domfilter eq '') \|\|	if (($domfilter eq '') \|\|
(&host_domain($tryserver) eq $domfilter)) {	(&host_domain($tryserver) eq $domfilter)) {
my $rep;	my $rep;
if (grep { $_ eq $tryserver } &current_machine_ids()) {	if (grep { $_ eq $tryserver } current_machine_ids()) {
$rep = &LONCAPA::Lond::dump_course_id_handler(	$rep = LONCAPA::Lond::dump_course_id_handler(
join(":", (&host_domain($tryserver), $sincefilter,	join(":", (&host_domain($tryserver), $sincefilter,
&escape($descfilter), &escape($instcodefilter),	&escape($descfilter), &escape($instcodefilter),
&escape($ownerfilter), &escape($coursefilter),	&escape($ownerfilter), &escape($coursefilter),
&escape($typefilter), &escape($regexp_ok),	&escape($typefilter), &escape($regexp_ok),
$as_hash, &escape($selfenrollonly),	$as_hash, &escape($selfenrollonly),
&escape($catfilter), $showhidden, $caller,	&escape($catfilter), $showhidden, $caller,
&escape($cloner), &escape($cc_clone), $cloneonly,	&escape($cloner), &escape($cc_clone), $cloneonly,
&escape($createdbefore), &escape($createdafter),	&escape($createdbefore), &escape($createdafter),
&escape($creationcontext),$domcloner,$hasuniquecode,	&escape($creationcontext), $domcloner)));
$reqcrsdom,&escape($reqinstcode))));
} else {	} else {
$rep = &reply('courseiddump:'.&host_domain($tryserver).':'.	$rep = &reply('courseiddump:'.&host_domain($tryserver).':'.
$sincefilter.':'.&escape($descfilter).':'.	$sincefilter.':'.&escape($descfilter).':'.
Line 5361 sub courseiddump {	Line 4212 sub courseiddump {
$showhidden.':'.$caller.':'.&escape($cloner).':'.	$showhidden.':'.$caller.':'.&escape($cloner).':'.
&escape($cc_clone).':'.$cloneonly.':'.	&escape($cc_clone).':'.$cloneonly.':'.
&escape($createdbefore).':'.&escape($createdafter).':'.	&escape($createdbefore).':'.&escape($createdafter).':'.
&escape($creationcontext).':'.$domcloner.':'.$hasuniquecode.	&escape($creationcontext).':'.$domcloner,
':'.$reqcrsdom.':'.&escape($reqinstcode),$tryserver);	$tryserver);
}	}

my @pairs=split(/\&/,$rep);	my @pairs=split(/\&/,$rep);
foreach my $item (@pairs) {	foreach my $item (@pairs) {
my ($key,$value)=split(/\=/,$item,2);	my ($key,$value)=split(/\=/,$item,2);
Line 5490 sub get_domain_roles {	Line 4341 sub get_domain_roles {
return %personnel;	return %personnel;
}	}

sub get_active_domroles {
my ($dom,$roles) = @_;
return () unless (ref($roles) eq 'ARRAY');
my $now = time;
my %dompersonnel = &get_domain_roles($dom,$roles,$now,$now);
my %domroles;
foreach my $server (keys(%dompersonnel)) {
foreach my $user (sort(keys(%{$dompersonnel{$server}}))) {
my ($trole,$uname,$udom,$runame,$rudom,$rsec) = split(/:/,$user);
$domroles{$uname.':'.$udom} = $dompersonnel{$server}{$user};
}
}
return %domroles;
}

# ----------------------------------------------------------- Interval timing	# ----------------------------------------------------------- Interval timing

{	{
Line 5516 my $cachedkey='';	Line 4352 my $cachedkey='';
# 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=();

sub load_all_first_access {	sub load_all_first_access {
my ($uname,$udom,$ignorecache)=@_;	my ($uname,$udom)=@_;
if (($cachedkey eq $uname.':'.$udom) &&	if (($cachedkey eq $uname.':'.$udom) &&
(abs($cachedtime-time)<5) && (!$env{'form.markaccess'}) &&	(abs($cachedtime-time)<5) && (!$env{'form.markaccess'})) {
(!$ignorecache)) {
return;	return;
}	}
$cachedtime=time;	$cachedtime=time;
Line 5531 sub load_all_first_access {	Line 4366 sub load_all_first_access {
}	}

sub get_first_access {	sub get_first_access {
my ($type,$argsymb,$argmap,$ignorecache)=@_;	my ($type,$argsymb,$argmap)=@_;
my ($symb,$courseid,$udom,$uname)=&whichuser();	my ($symb,$courseid,$udom,$uname)=&whichuser();
if ($argsymb) { $symb=$argsymb; }	if ($argsymb) { $symb=$argsymb; }
my ($map,$id,$res)=&decode_symb($symb);	my ($map,$id,$res)=&decode_symb($symb);
Line 5543 sub get_first_access {	Line 4378 sub get_first_access {
} else {	} else {
$res=$symb;	$res=$symb;
}	}
&load_all_first_access($uname,$udom,$ignorecache);	&load_all_first_access($uname,$udom);
return $cachedtimes{"$courseid\0$res"};	return $cachedtimes{"$courseid\0$res"};
}	}

Line 5560 sub set_first_access {	Line 4395 sub set_first_access {
}	}
$cachedkey='';	$cachedkey='';
my $firstaccess=&get_first_access($type,$symb,$map);	my $firstaccess=&get_first_access($type,$symb,$map);
if ($firstaccess) {	if (!$firstaccess) {
&logthis("First access time already set ($firstaccess) when attempting ".
"to set new value (type: $type, extent: $res) for $uname:$udom ".
"in $courseid");
return 'already_set';
} else {
my $start = time;	my $start = time;
my $putres = &put('firstaccesstimes',{"$courseid\0$res"=>$start},	my $putres = &put('firstaccesstimes',{"$courseid\0$res"=>$start},
$udom,$uname);	$udom,$uname);
Line 5578 sub set_first_access {	Line 4408 sub set_first_access {
'course.'.$courseid.'.timerinterval.'.$res => $interval,	'course.'.$courseid.'.timerinterval.'.$res => $interval,
}	}
);	);
if (($cachedtime) && (abs($start-$cachedtime) < 5)) {
$cachedtimes{"$courseid\0$res"} = $start;
}
} elsif ($putres ne 'refused') {
&logthis("Result: $putres when attempting to set first access time ".
"(type: $type, extent: $res) for $uname:$udom in $courseid");
}	}
return $putres;	return $putres;
}	}
return 'already_set';	return 'already_set';
}	}
}	}

sub checkout {
my ($symb,$tuname,$tudom,$tcrsid)=@_;
my $now=time;
my $lonhost=$perlvar{'lonHostID'};
my $ip = &get_requestor_ip();
my $infostr=&escape(
'CHECKOUTTOKEN&'.
$tuname.'&'.
$tudom.'&'.
$tcrsid.'&'.
$symb.'&'.
$now.'&'.$ip);
my $token=&reply('tmpput:'.$infostr,$lonhost);
if ($token=~/^error\:/) {
&logthis("<font color=\"blue\">WARNING: ".
"Checkout tmpput failed ".$tudom.' - '.$tuname.' - '.$symb.
"</font>");
return '';
}

$token=~s/^(\d+)\_.\_(\d+)$/$1\$2\*$lonhost/;
$token=~tr/a-z/A-Z/;

my %infohash=('resource.0.outtoken' => $token,
'resource.0.checkouttime' => $now,
'resource.0.outremote' => $ip);

unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
return '';
} else {
&logthis("<font color=\"blue\">WARNING: ".
"Checkout cstore failed ".$tudom.' - '.$tuname.' - '.$symb.
"</font>");
}

if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
&escape('Checkout '.$infostr.' - '.
$token)) ne 'ok') {
return '';
} else {
&logthis("<font color=\"blue\">WARNING: ".
"Checkout log failed ".$tudom.' - '.$tuname.' - '.$symb.
"</font>");
}
return $token;
}

# ------------------------------------------------------------ Check in an item

sub checkin {
my $token=shift;
my $now=time;
my ($ta,$tb,$lonhost)=split(/\*/,$token);
$lonhost=~tr/A-Z/a-z/;
my $dtoken=$ta.'_'.&hostname($lonhost).'_'.$tb;
$dtoken=~s/\W/\_/g;
my $ip = &get_requestor_ip();
my ($dummy,$tuname,$tudom,$tcrsid,$symb,$chtim,$rmaddr)=
split(/\&/,&unescape(&reply('tmpget:'.$dtoken,$lonhost)));

unless (($tuname) && ($tudom)) {
&logthis('Check in '.$token.' ('.$dtoken.') failed');
return '';
}

unless (&allowed('mgr',$tcrsid)) {
&logthis('Check in '.$token.' ('.$dtoken.') unauthorized: '.
$env{'user.name'}.' - '.$env{'user.domain'});
return '';
}

my %infohash=('resource.0.intoken' => $token,
'resource.0.checkintime' => $now,
'resource.0.inremote' => $ip);

unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
return '';
}

if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
&escape('Checkin - '.$token)) ne 'ok') {
return '';
}

return ($symb,$tuname,$tudom,$tcrsid);
}

# --------------------------------------------- Set Expire Date for Spreadsheet	# --------------------------------------------- Set Expire Date for Spreadsheet

sub expirespread {	sub expirespread {
Line 5932 sub tmpreset {	Line 4668 sub tmpreset {
if (!$domain) { $domain=$env{'user.domain'}; }	if (!$domain) { $domain=$env{'user.domain'}; }
if (!$stuname) { $stuname=$env{'user.name'}; }	if (!$stuname) { $stuname=$env{'user.name'}; }
if ($domain eq 'public' && $stuname eq 'public') {	if ($domain eq 'public' && $stuname eq 'public') {
$stuname=&get_requestor_ip();	$stuname=$ENV{'REMOTE_ADDR'};
}	}
my $path=LONCAPA::tempdir();	my $path=LONCAPA::tempdir();
my %hash;	my %hash;
Line 5969 sub tmpstore {	Line 4705 sub tmpstore {
if (!$domain) { $domain=$env{'user.domain'}; }	if (!$domain) { $domain=$env{'user.domain'}; }
if (!$stuname) { $stuname=$env{'user.name'}; }	if (!$stuname) { $stuname=$env{'user.name'}; }
if ($domain eq 'public' && $stuname eq 'public') {	if ($domain eq 'public' && $stuname eq 'public') {
$stuname=&get_requestor_ip();	$stuname=$ENV{'REMOTE_ADDR'};
}	}
my $now=time;	my $now=time;
my %hash;	my %hash;
Line 6013 sub tmprestore {	Line 4749 sub tmprestore {
if (!$domain) { $domain=$env{'user.domain'}; }	if (!$domain) { $domain=$env{'user.domain'}; }
if (!$stuname) { $stuname=$env{'user.name'}; }	if (!$stuname) { $stuname=$env{'user.name'}; }
if ($domain eq 'public' && $stuname eq 'public') {	if ($domain eq 'public' && $stuname eq 'public') {
$stuname=&get_requestor_ip();	$stuname=$ENV{'REMOTE_ADDR'};
}	}
my %returnhash;	my %returnhash;
$namespace=~s/\//\_/g;	$namespace=~s/\//\_/g;
Line 6048 sub tmprestore {	Line 4784 sub tmprestore {
# ----------------------------------------------------------------------- Store	# ----------------------------------------------------------------------- Store

sub store {	sub store {
my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_;	my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
my $home='';	my $home='';

if ($stuname) { $home=&homeserver($stuname,$domain); }	if ($stuname) { $home=&homeserver($stuname,$domain); }
Line 6069 sub store {	Line 4805 sub store {
}	}
if (!$home) { $home=$env{'user.home'}; }	if (!$home) { $home=$env{'user.home'}; }

$$storehash{'ip'}=&get_requestor_ip();	$$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
$$storehash{'host'}=$perlvar{'lonHostID'};	$$storehash{'host'}=$perlvar{'lonHostID'};

my $namevalue='';	my $namevalue='';
Line 6078 sub store {	Line 4814 sub store {
}	}
$namevalue=~s/\&$//;	$namevalue=~s/\&$//;
&courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);	&courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
return reply("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home");	return reply("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
}	}

# -------------------------------------------------------------- Critical Store	# -------------------------------------------------------------- Critical Store

sub cstore {	sub cstore {
my ($storehash,$symb,$namespace,$domain,$stuname,$laststore) = @_;	my ($storehash,$symb,$namespace,$domain,$stuname) = @_;
my $home='';	my $home='';

if ($stuname) { $home=&homeserver($stuname,$domain); }	if ($stuname) { $home=&homeserver($stuname,$domain); }
Line 6105 sub cstore {	Line 4841 sub cstore {
}	}
if (!$home) { $home=$env{'user.home'}; }	if (!$home) { $home=$env{'user.home'}; }

$$storehash{'ip'}=&get_requestor_ip();	$$storehash{'ip'}=$ENV{'REMOTE_ADDR'};
$$storehash{'host'}=$perlvar{'lonHostID'};	$$storehash{'host'}=$perlvar{'lonHostID'};

my $namevalue='';	my $namevalue='';
Line 6115 sub cstore {	Line 4851 sub cstore {
$namevalue=~s/\&$//;	$namevalue=~s/\&$//;
&courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);	&courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
return critical	return critical
("store:$domain:$stuname:$namespace:$symb:$namevalue:$laststore","$home");	("store:$domain:$stuname:$namespace:$symb:$namevalue","$home");
}	}

# --------------------------------------------------------------------- Restore	# --------------------------------------------------------------------- Restore
Line 6271 sub privileged {	Line 5007 sub privileged {
my $now = time;	my $now = time;
my $roles;	my $roles;
if (ref($possroles) eq 'ARRAY') {	if (ref($possroles) eq 'ARRAY') {
$roles = $possroles;	$roles = $possroles;
} else {	} else {
$roles = ['dc','su'];	$roles = ['dc','su'];
}	}
Line 6295 sub privileged {	Line 5031 sub privileged {
my %rolesdump = &dump("roles", $domain, $username) or return 0;	my %rolesdump = &dump("roles", $domain, $username) or return 0;
my $now = time;	my $now = time;

for my $role (@rolesdump{grep { ! /^rolesdef_/ } keys(%rolesdump)}) {	for my $role (@rolesdump{grep { ! /^rolesdef_/ } keys %rolesdump}) {
my ($trole, $tend, $tstart) = split(/_/, $role);	my ($trole, $tend, $tstart) = split(/_/, $role);
if (grep(/^\Q$trole\E$/,@{$roles})) {	if (grep(/^\Q$trole\E$/,@{$roles})) {
return 1 unless ($tend && $tend < $now)	return 1 unless ($tend && $tend < $now)
or ($tstart && $tstart > $now);	or ($tstart && $tstart > $now);
}	}
}	}
Line 6336 sub privileged_by_domain {	Line 5072 sub privileged_by_domain {
my ($trole,$uname,$udom,$rest) = split(/:/,$item,4);	my ($trole,$uname,$udom,$rest) = split(/:/,$item,4);
my ($end,$start) = split(/:/,$dompersonnel{$server}{$item});	my ($end,$start) = split(/:/,$dompersonnel{$server}{$item});
next if ($end && $end < $now);	next if ($end && $end < $now);
$privileged{$dom}{$trole}{$uname.':'.$udom} =	$privileged{$dom}{$trole}{$uname.':'.$udom} =
$dompersonnel{$server}{$item};	$dompersonnel{$server}{$item};
}	}
}	}
Line 6384 sub rolesinit {	Line 5120 sub rolesinit {
my %allroles=();	my %allroles=();
my %allgroups=();	my %allgroups=();

for my $area (grep { ! /^rolesdef_/ } keys(%rolesdump)) {	for my $area (grep { ! /^rolesdef_/ } keys %rolesdump) {
my $role = $rolesdump{$area};	my $role = $rolesdump{$area};
$area =~ s/\_\w\w$//;	$area =~ s/\_\w\w$//;

Line 6457 sub rolesinit {	Line 5193 sub rolesinit {
}	}
}	}

@userroles{'user.author','user.adv','user.rar'} = &set_userprivs(\%userroles,	@userroles{'user.author', 'user.adv'} = &set_userprivs(\%userroles,
\%allroles, \%allgroups);	\%allroles, \%allgroups);
$env{'user.adv'} = $userroles{'user.adv'};	$env{'user.adv'} = $userroles{'user.adv'};
$env{'user.rar'} = $userroles{'user.rar'};

return (\%userroles,\%firstaccenv,\%timerintenv);	return (\%userroles,\%firstaccenv,\%timerintenv);
}	}
Line 6477 sub set_arearole {	Line 5212 sub set_arearole {
sub custom_roleprivs {	sub custom_roleprivs {
my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;	my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);	my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
my $homsvr = &homeserver($rauthor,$rdomain);	my $homsvr=homeserver($rauthor,$rdomain);
if (&hostname($homsvr) ne '') {	if (&hostname($homsvr) ne '') {
my ($rdummy,$roledef)=	my ($rdummy,$roledef)=
&get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);	&get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
Line 6496 sub custom_roleprivs {	Line 5231 sub custom_roleprivs {
$$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;	$$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
}	}
if (($trest ne '') && (defined($coursepriv))) {	if (($trest ne '') && (defined($coursepriv))) {
if ($trole =~ m{^cr/$tdomain/$tdomain\Q-domainconfig\E/([^/]+)$}) {
my $rolename = $1;
$coursepriv = &course_adhocrole_privs($rolename,$tdomain,$trest,$coursepriv);
}
$$allroles{'cm.'.$area}.=':'.$coursepriv;	$$allroles{'cm.'.$area}.=':'.$coursepriv;
$$allroles{$spec.'.'.$area}.=':'.$coursepriv;	$$allroles{$spec.'.'.$area}.=':'.$coursepriv;
}	}
Line 6508 sub custom_roleprivs {	Line 5239 sub custom_roleprivs {
}	}
}	}

sub course_adhocrole_privs {
my ($rolename,$cdom,$cnum,$coursepriv) = @_;
my %overrides = &get('environment',["internal.adhocpriv.$rolename"],$cdom,$cnum);
if ($overrides{"internal.adhocpriv.$rolename"}) {
my (%currprivs,%storeprivs);
foreach my $item (split(/:/,$coursepriv)) {
my ($priv,$restrict) = split(/\&/,$item);
$currprivs{$priv} = $restrict;
}
my (%possadd,%possremove,%full);
foreach my $item (split(/\:/,$Apache::lonnet::pr{'cr:c'})) {
my ($priv,$restrict)=split(/\&/,$item);
$full{$priv} = $restrict;
}
foreach my $item (split(/,/,$overrides{"internal.adhocpriv.$rolename"})) {
next if ($item eq '');
my ($rule,$rest) = split(/=/,$item);
next unless (($rule eq 'off') \|\| ($rule eq 'on'));
foreach my $priv (split(/:/,$rest)) {
if ($priv ne '') {
if ($rule eq 'off') {
$possremove{$priv} = 1;
} else {
$possadd{$priv} = 1;
}
}
}
}
foreach my $priv (sort(keys(%full))) {
if (exists($currprivs{$priv})) {
unless (exists($possremove{$priv})) {
$storeprivs{$priv} = $currprivs{$priv};
}
} elsif (exists($possadd{$priv})) {
$storeprivs{$priv} = $full{$priv};
}
}
$coursepriv = ':'.join(':',map { $_.'&'.$storeprivs{$_}; } sort(keys(%storeprivs)));
}
return $coursepriv;
}

sub group_roleprivs {	sub group_roleprivs {
my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;	my ($allgroups,$area,$group_privs,$tend,$tstart) = @_;
my $access = 1;	my $access = 1;
Line 6584 sub set_userprivs {	Line 5273 sub set_userprivs {
my ($userroles,$allroles,$allgroups,$groups_roles) = @_;	my ($userroles,$allroles,$allgroups,$groups_roles) = @_;
my $author=0;	my $author=0;
my $adv=0;	my $adv=0;
my $rar=0;
my %grouproles = ();	my %grouproles = ();
if (keys(%{$allgroups}) > 0) {	if (keys(%{$allgroups}) > 0) {
my @groupkeys;	my @groupkeys;
Line 6632 sub set_userprivs {	Line 5320 sub set_userprivs {
$thesepriv{$privilege}.=$restrictions;	$thesepriv{$privilege}.=$restrictions;
}	}
if ($thesepriv{'adv'} eq 'F') { $adv=1; }	if ($thesepriv{'adv'} eq 'F') { $adv=1; }
if ($thesepriv{'rar'} eq 'F') { $rar=1; }
}	}
}	}
my $thesestr='';	my $thesestr='';
Line 6641 sub set_userprivs {	Line 5328 sub set_userprivs {
}	}
$userroles->{'user.priv.'.$role} = $thesestr;	$userroles->{'user.priv.'.$role} = $thesestr;
}	}
return ($author,$adv,$rar);	return ($author,$adv);
}	}

sub role_status {	sub role_status {
my ($rolekey,$update,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;	my ($rolekey,$update,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
	my @pwhere = ();
if (exists($env{$rolekey}) && $env{$rolekey} ne '') {	if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
my ($one,$two) = split(m{\./},$rolekey,2);	(undef,undef,$$role,@pwhere)=split(/\./,$rolekey);
(undef,undef,$$role) = split(/\./,$one,3);
unless (!defined($$role) \|\| $$role eq '') {	unless (!defined($$role) \|\| $$role eq '') {
$$where = '/'.$two;	$$where=join('.',@pwhere);
$$trolecode=$$role.'.'.$$where;	$$trolecode=$$role.'.'.$$where;
($$tstart,$$tend)=split(/\./,$env{$rolekey});	($$tstart,$$tend)=split(/\./,$env{$rolekey});
$$tstatus='is';	$$tstatus='is';
Line 6686 sub role_status {	Line 5373 sub role_status {
push(@rolecodes,$$role);	push(@rolecodes,$$role);
&standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where);	&standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where);
}	}
my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%allroles,\%allgroups,	my ($author,$adv)= &set_userprivs(\%userroles,\%allroles,\%allgroups,\%groups_roles);
\%groups_roles);
&appenv(\%userroles,\@rolecodes);	&appenv(\%userroles,\@rolecodes);
&log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec);	&log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
}	}
}	}
$$tstatus = 'is';	$$tstatus = 'is';
Line 6765 sub delete_env_groupprivs {	Line 5451 sub delete_env_groupprivs {
}	}

sub check_adhoc_privs {	sub check_adhoc_privs {
my ($cdom,$cnum,$update,$refresh,$now,$checkrole,$caller,$sec) = @_;	my ($cdom,$cnum,$update,$refresh,$now,$checkrole,$caller) = @_;
my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;	my $cckey = 'user.role.'.$checkrole.'./'.$cdom.'/'.$cnum;
if ($sec) {
$cckey .= '/'.$sec;
}
my $setprivs;	my $setprivs;
if ($env{$cckey}) {	if ($env{$cckey}) {
my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);	my ($role,$where,$trolecode,$tstart,$tend,$tremark,$tstatus,$tpstart,$tpend);
&role_status($cckey,$update,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);	&role_status($cckey,$update,$refresh,$now,\$role,\$where,\$trolecode,\$tstatus,\$tstart,\$tend);
unless (($tstatus eq 'is') \|\| ($tstatus eq 'will_not')) {	unless (($tstatus eq 'is') \|\| ($tstatus eq 'will_not')) {
&set_adhoc_privileges($cdom,$cnum,$checkrole,$caller,$sec);	&set_adhoc_privileges($cdom,$cnum,$checkrole,$caller);
$setprivs = 1;	$setprivs = 1;
}	}
} else {	} else {
&set_adhoc_privileges($cdom,$cnum,$checkrole,$caller,$sec);	&set_adhoc_privileges($cdom,$cnum,$checkrole,$caller);
$setprivs = 1;	$setprivs = 1;
}	}
return $setprivs;	return $setprivs;
}	}

sub set_adhoc_privileges {	sub set_adhoc_privileges {
# role can be cc, ca, or cr/<dom>/<dom>-domainconfig/role	# role can be cc or ca
my ($dcdom,$pickedcourse,$role,$caller,$sec) = @_;	my ($dcdom,$pickedcourse,$role,$caller) = @_;
my $area = '/'.$dcdom.'/'.$pickedcourse;	my $area = '/'.$dcdom.'/'.$pickedcourse;
if ($sec ne '') {
$area .= '/'.$sec;
}
my $spec = $role.'.'.$area;	my $spec = $role.'.'.$area;
my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'},	my %userroles = &set_arearole($role,$area,'','',$env{'user.domain'},
$env{'user.name'},1);	$env{'user.name'},1);
my %rolehash = ();	my %ccrole = ();
if ($role =~ m{^\Qcr/$dcdom/$dcdom\E\-domainconfig/(\w+)$}) {	&standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
my $rolename = $1;	my ($author,$adv)= &set_userprivs(\%userroles,\%ccrole);
&custom_roleprivs(\%rolehash,$role,$dcdom,$pickedcourse,$spec,$area);
my %domdef = &get_domain_defaults($dcdom);
if (ref($domdef{'adhocroles'}) eq 'HASH') {
if (ref($domdef{'adhocroles'}{$rolename}) eq 'HASH') {
&appenv({'request.role.desc' => $domdef{'adhocroles'}{$rolename}{'desc'},});
}
}
} else {
&standard_roleprivs(\%rolehash,$role,$dcdom,$spec,$pickedcourse,$area);
}
my ($author,$adv,$rar)= &set_userprivs(\%userroles,\%rolehash);
&appenv(\%userroles,[$role,'cm']);	&appenv(\%userroles,[$role,'cm']);
&log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$spec);	&log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
unless ($caller eq 'constructaccess' && $env{'request.course.id'}) {	unless ($caller eq 'constructaccess' && $env{'request.course.id'}) {
&appenv( {'request.role' => $spec,	&appenv( {'request.role' => $spec,
'request.role.domain' => $dcdom,	'request.role.domain' => $dcdom,
'request.course.sec' => $sec,	'request.course.sec' => ''
}	}
);	);
my $tadv=0;	my $tadv=0;
Line 6874 sub unserialize {	Line 5543 sub unserialize {
return {} if $rep =~ /^error/;	return {} if $rep =~ /^error/;

my %returnhash=();	my %returnhash=();
foreach my $item (split(/\&/,$rep)) {	foreach my $item (split /\&/, $rep) {
my ($key, $value) = split(/=/, $item, 2);	my ($key, $value) = split(/=/, $item, 2);
$key = unescape($key) unless $escapedkeys;	$key = unescape($key) unless $escapedkeys;
next if $key =~ /^error: 2 /;	next if $key =~ /^error: 2 /;
$returnhash{$key} = &thaw_unescape($value);	$returnhash{$key} = Apache::lonnet::thaw_unescape($value);
}	}
	#return %returnhash;
return \%returnhash;	return \%returnhash;
}	}

# see Lond::dump_with_regexp	# see Lond::dump_with_regexp
# if $escapedkeys hash keys won't get unescaped.	# if $escapedkeys hash keys won't get unescaped.
Line 6891 sub dump {	Line 5561 sub dump {
if (!$uname) { $uname=$env{'user.name'}; }	if (!$uname) { $uname=$env{'user.name'}; }
my $uhome=&homeserver($uname,$udomain);	my $uhome=&homeserver($uname,$udomain);

if ($regexp) {	my $reply;
$regexp=&escape($regexp);	if (grep { $_ eq $uhome } current_machine_ids()) {
} else {
$regexp='.';
}
if (grep { $_ eq $uhome } &current_machine_ids()) {
# user is hosted on this machine	# user is hosted on this machine
my $reply = LONCAPA::Lond::dump_with_regexp(join(':', ($udomain,	$reply = LONCAPA::Lond::dump_with_regexp(join(":", ($udomain,
$uname, $namespace, $regexp, $range)), $perlvar{'lonVersion'});	$uname, $namespace, $regexp, $range)), $perlvar{'lonVersion'});
return %{&unserialize($reply, $escapedkeys)};	return %{unserialize($reply, $escapedkeys)};
	}
	if ($regexp) {
	$regexp=&escape($regexp);
	} else {
	$regexp='.';
}	}
my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);	my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
my @pairs=split(/\&/,$rep);	my @pairs=split(/\&/,$rep);
Line 6908 sub dump {	Line 5579 sub dump {
if (!($rep =~ /^error/ )) {	if (!($rep =~ /^error/ )) {
foreach my $item (@pairs) {	foreach my $item (@pairs) {
my ($key,$value)=split(/=/,$item,2);	my ($key,$value)=split(/=/,$item,2);
$key = &unescape($key) unless ($escapedkeys);	$key = unescape($key) unless $escapedkeys;
	#$key = &unescape($key);
next if ($key =~ /^error: 2 /);	next if ($key =~ /^error: 2 /);
$returnhash{$key}=&thaw_unescape($value);	$returnhash{$key}=&thaw_unescape($value);
}	}
Line 6952 sub currentdump {	Line 5624 sub currentdump {
my $rep;	my $rep;

if (grep { $_ eq $uhome } current_machine_ids()) {	if (grep { $_ eq $uhome } current_machine_ids()) {
$rep = LONCAPA::Lond::dump_profile_database(join(":", ($sdom, $sname,	$rep = LONCAPA::Lond::dump_profile_database(join(":", ($sdom, $sname,
$courseid)));	$courseid)));
} else {	} else {
$rep = reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);	$rep = reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
Line 6962 sub currentdump {	Line 5634 sub currentdump {
#	#
my %returnhash=();	my %returnhash=();
#	#
if ($rep eq 'unknown_cmd') {	if ($rep eq "unknown_cmd") {
# an old lond will not know currentdump	# an old lond will not know currentdump
# Do a dump and make it look like a currentdump	# Do a dump and make it look like a currentdump
my @tmp = &dumpstore($courseid,$sdom,$sname,'.');	my @tmp = &dumpstore($courseid,$sdom,$sname,'.');
Line 7078 sub newput {	Line 5750 sub newput {
# --------------------------------------------------------- putstore interface	# --------------------------------------------------------- putstore interface

sub putstore {	sub putstore {
my ($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog)=@_;	my ($namespace,$symb,$version,$storehash,$udomain,$uname)=@_;
if (!$udomain) { $udomain=$env{'user.domain'}; }	if (!$udomain) { $udomain=$env{'user.domain'}; }
if (!$uname) { $uname=$env{'user.name'}; }	if (!$uname) { $uname=$env{'user.name'}; }
my $uhome=&homeserver($uname,$udomain);	my $uhome=&homeserver($uname,$udomain);
Line 7092 sub putstore {	Line 5764 sub putstore {
my $reply =	my $reply =
&reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",	&reply("putstore:$udomain:$uname:$namespace:$esc_symb:$esc_v:$items",
$uhome);	$uhome);
if (($tolog) && ($reply eq 'ok')) {
my $namevalue='';
foreach my $key (keys(%{$storehash})) {
$namevalue.=&escape($key).'='.&freeze_escape($storehash->{$key}).'&';
}
my $ip = &get_requestor_ip();
$namevalue .= 'ip='.&escape($ip).
'&host='.&escape($perlvar{'lonHostID'}).
'&version='.$esc_v.
'&by='.&escape($env{'user.name'}.':'.$env{'user.domain'});
&Apache::lonnet::courselog($symb.':'.$uname.':'.$udomain.':PUTSTORE:'.$namevalue);
}
if ($reply eq 'unknown_cmd') {	if ($reply eq 'unknown_cmd') {
# gfall back to way things use to be done	# gfall back to way things use to be done
return &old_putstore($namespace,$symb,$version,$storehash,$udomain,	return &old_putstore($namespace,$symb,$version,$storehash,$udomain,
Line 7197 sub tmpget {	Line 5857 sub tmpget {
if (!defined($server)) { $server = $perlvar{'lonHostID'}; }	if (!defined($server)) { $server = $perlvar{'lonHostID'}; }
my $rep=&reply("tmpget:$token",$server);	my $rep=&reply("tmpget:$token",$server);
my %returnhash;	my %returnhash;
if ($rep =~ /^(con_lost\|error\|no_such_host)/i) {
return %returnhash;
}
foreach my $item (split(/\&/,$rep)) {	foreach my $item (split(/\&/,$rep)) {
my ($key,$value)=split(/=/,$item);	my ($key,$value)=split(/=/,$item);
	next if ($key =~ /^error: 2 /);
$returnhash{&unescape($key)}=&thaw_unescape($value);	$returnhash{&unescape($key)}=&thaw_unescape($value);
}	}
return %returnhash;	return %returnhash;
Line 7214 sub tmpdel {	Line 5872 sub tmpdel {
return &reply("tmpdel:$token",$server);	return &reply("tmpdel:$token",$server);
}	}

# ------------------------------------------------------------ get_timebased_id	# ------------------------------------------------------------ get_timebased_id

sub get_timebased_id {	sub get_timebased_id {
my ($prefix,$keyid,$namespace,$cdom,$cnum,$idtype,$who,$locktries,	my ($prefix,$keyid,$namespace,$cdom,$cnum,$idtype,$who,$locktries,
$maxtries) = @_;	$maxtries) = @_;
my ($newid,$error,$dellock);	my ($newid,$error,$dellock);
unless (($prefix =~ /^\w+$/) && ($keyid =~ /^\w+$/) && ($namespace ne '')) {	unless (($prefix =~ /^\w+$/) && ($keyid =~ /^\w+$/) && ($namespace ne '')) {
return ('','ok','invalid call to get suffix');	return ('','ok','invalid call to get suffix');
}	}

Line 7234 sub get_timebased_id {	Line 5892 sub get_timebased_id {
if (!$maxtries) {	if (!$maxtries) {
$maxtries = 10;	$maxtries = 10;
}	}

if (($cdom eq '') \|\| ($cnum eq '')) {	if (($cdom eq '') \|\| ($cnum eq '')) {
if ($env{'request.course.id'}) {	if ($env{'request.course.id'}) {
$cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};	$cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
Line 7264 sub get_timebased_id {	Line 5922 sub get_timebased_id {
my %inuse = &Apache::lonnet::dump('nohist_'.$namespace,$cdom,$cnum,$prefix);	my %inuse = &Apache::lonnet::dump('nohist_'.$namespace,$cdom,$cnum,$prefix);
my $id = time;	my $id = time;
$newid = $id;	$newid = $id;
if ($idtype eq 'addcode') {
$newid .= &sixnum_code();
}
my $idtries = 0;	my $idtries = 0;
while (exists($inuse{$prefix."\0".$newid}) && $idtries < $maxtries) {	while (exists($inuse{$prefix."\0".$newid}) && $idtries < $maxtries) {
if ($idtype eq 'concat') {	if ($idtype eq 'concat') {
$newid = $id.$idtries;	$newid = $id.$idtries;
} elsif ($idtype eq 'addcode') {
$newid = $newid.&sixnum_code();
} else {	} else {
$newid ++;	$newid ++;
}	}
Line 7289 sub get_timebased_id {	Line 5942 sub get_timebased_id {
$error = 'error saving new item: '.$putresult;	$error = 'error saving new item: '.$putresult;
}	}
} else {	} else {
undef($newid);
$error = ('error: no unique suffix available for the new item ');	$error = ('error: no unique suffix available for the new item ');
}	}
# remove lock	# remove lock
Line 7298 sub get_timebased_id {	Line 5950 sub get_timebased_id {
} else {	} else {
$error = "error: could not obtain lockfile\n";	$error = "error: could not obtain lockfile\n";
$dellock = 'ok';	$dellock = 'ok';
if (($prefix eq 'paste') && ($namespace eq 'courseeditor') && ($keyid eq 'num')) {
$dellock = 'nolock';
}
}	}
return ($newid,$dellock,$error);	return ($newid,$dellock,$error);
}	}

sub sixnum_code {
my $code;
for (0..6) {
$code .= int( rand(9) );
}
return $code;
}

# -------------------------------------------------- portfolio access checking	# -------------------------------------------------- portfolio access checking

sub portfolio_access {	sub portfolio_access {
my ($requrl,$clientip) = @_;	my ($requrl) = @_;
my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);	my (undef,$udom,$unum,$file_name,$group) = &parse_portfolio_url($requrl);
my $result = &get_portfolio_access($udom,$unum,$file_name,$group,$clientip);	my $result = &get_portfolio_access($udom,$unum,$file_name,$group);
if ($result) {	if ($result) {
my %setters;	my %setters;
if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {	if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
Line 7344 sub portfolio_access {	Line 5985 sub portfolio_access {
}	}

sub get_portfolio_access {	sub get_portfolio_access {
my ($udom,$unum,$file_name,$group,$clientip,$access_hash) = @_;	my ($udom,$unum,$file_name,$group,$access_hash) = @_;

if (!ref($access_hash)) {	if (!ref($access_hash)) {
my $current_perms = &get_portfile_permissions($udom,$unum);	my $current_perms = &get_portfile_permissions($udom,$unum);
Line 7353 sub get_portfolio_access {	Line 5994 sub get_portfolio_access {
$access_hash = $access_controls{$file_name};	$access_hash = $access_controls{$file_name};
}	}

my ($public,$guest,@domains,@users,@courses,@groups,@ips);	my ($public,$guest,@domains,@users,@courses,@groups);
my $now = time;	my $now = time;
if (ref($access_hash) eq 'HASH') {	if (ref($access_hash) eq 'HASH') {
foreach my $key (keys(%{$access_hash})) {	foreach my $key (keys(%{$access_hash})) {
Line 7377 sub get_portfolio_access {	Line 6018 sub get_portfolio_access {
push(@courses,$key);	push(@courses,$key);
} elsif ($scope eq 'group') {	} elsif ($scope eq 'group') {
push(@groups,$key);	push(@groups,$key);
} elsif ($scope eq 'ip') {
push(@ips,$key);
}	}
}	}
if ($public) {	if ($public) {
return 'ok';	return 'ok';
} elsif (@ips > 0) {
my $allowed;
foreach my $ipkey (@ips) {
if (ref($access_hash->{$ipkey}{'ip'}) eq 'ARRAY') {
if (&Apache::loncommon::check_ip_acc(join(',',@{$access_hash->{$ipkey}{'ip'}}),$clientip)) {
$allowed = 1;
last;
}
}
}
if ($allowed) {
return 'ok';
}
}	}
if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {	if ($env{'user.name'} eq 'public' && $env{'user.domain'} eq 'public') {
if ($guest) {	if ($guest) {
Line 7582 sub usertools_access {	Line 6208 sub usertools_access {
official => 1,	official => 1,
unofficial => 1,	unofficial => 1,
community => 1,	community => 1,
textbook => 1,
);	);
} elsif ($context eq 'requestauthor') {	} elsif ($context eq 'requestauthor') {
%tools = (	%tools = (
Line 7617 sub usertools_access {	Line 6242 sub usertools_access {

my ($toolstatus,$inststatus,$envkey);	my ($toolstatus,$inststatus,$envkey);
if ($context eq 'requestauthor') {	if ($context eq 'requestauthor') {
$envkey = $context;	$envkey = $context;
} else {	} else {
$envkey = $context.'.'.$tool;	$envkey = $context.'.'.$tool;
}	}
Line 7879 sub customaccess {	Line 6504 sub customaccess {
# ------------------------------------------------- Check for a user privilege	# ------------------------------------------------- Check for a user privilege

sub allowed {	sub allowed {
my ($priv,$uri,$symb,$role,$clientip,$noblockcheck,$ignorecache)=@_;	my ($priv,$uri,$symb,$role)=@_;
my $ver_orguri=$uri;	my $ver_orguri=$uri;
$uri=&deversion($uri);	$uri=&deversion($uri);
my $orguri=$uri;	my $orguri=$uri;
Line 7896 sub allowed {	Line 6521 sub allowed {

if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }	if (defined($env{'allowed.'.$priv})) { return $env{'allowed.'.$priv}; }
# Free bre access to adm and meta resources	# Free bre access to adm and meta resources
if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg\|bulletinboard\|viewclasslist\|aboutme\|ext\.tool)$}))	if (((($uri=~/^adm\//) && ($uri !~ m{/(?:smppg\|bulletinboard)$}))
\|\| (($uri=~/\.meta$/) && ($uri!~m\|^uploaded/\|) ))	\|\| (($uri=~/\.meta$/) && ($uri!~m\|^uploaded/\|) ))
&& ($priv eq 'bre')) {	&& ($priv eq 'bre')) {
return 'F';	return 'F';
Line 8002 sub allowed {	Line 6627 sub allowed {
my $adom = $1;	my $adom = $1;
foreach my $key (keys(%env)) {	foreach my $key (keys(%env)) {
if ($key =~ m{^user\.role\.(ca\|aa)/\Q$adom\E}) {	if ($key =~ m{^user\.role\.(ca\|aa)/\Q$adom\E}) {
my ($start,$end) = split(/\./,$env{$key});	my ($start,$end) = split('.',$env{$key});
if (($now >= $start) && (!$end \|\| $end > $now)) {	if (($now >= $start) && (!$end \|\| $end < $now)) {
$ownaccess = 1;	$ownaccess = 1;
last;	last;
}	}
Line 8015 sub allowed {	Line 6640 sub allowed {
foreach my $role ('ca','aa') {	foreach my $role ('ca','aa') {
if ($env{"user.role.$role./$adom/$aname"}) {	if ($env{"user.role.$role./$adom/$aname"}) {
my ($start,$end) =	my ($start,$end) =
split(/\./,$env{"user.role.$role./$adom/$aname"});	split('.',$env{"user.role.$role./$adom/$aname"});
if (($now >= $start) && (!$end \|\| $end > $now)) {	if (($now >= $start) && (!$end \|\| $end < $now)) {
$ownaccess = 1;	$ownaccess = 1;
last;	last;
}	}
Line 8061 sub allowed {	Line 6686 sub allowed {

if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}	if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseuri}
=~/\Q$priv\E\&([^\:]*)/) {	=~/\Q$priv\E\&([^\:]*)/) {
if ($priv eq 'mip') {	unless (($priv eq 'bro') && (!$ownaccess)) {
my $rem = $1;	$thisallowed.=$1;
if (($uri ne '') && ($env{'request.course.id'} eq $uri) &&
($env{'course.'.$env{'request.course.id'}.'.internal.courseowner'} eq $env{'user.name'}.':'.$env{'user.domain'})) {
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
if ($cdom ne '') {
my %passwdconf = &get_passwdconf($cdom);
if (ref($passwdconf{'crsownerchg'}) eq 'HASH') {
if (ref($passwdconf{'crsownerchg'}{'by'}) eq 'ARRAY') {
if (@{$passwdconf{'crsownerchg'}{'by'}}) {
my @inststatuses = split(':',$env{'environment.inststatus'});
unless (@inststatuses) {
@inststatuses = ('default');
}
foreach my $status (@inststatuses) {
if (grep(/^\Q$status\E$/,@{$passwdconf{'crsownerchg'}{'by'}})) {
$thisallowed.=$rem;
}
}
}
}
}
}
}
} else {
unless (($priv eq 'bro') && (!$ownaccess)) {
$thisallowed.=$1;
}
}	}
}	}

Line 8100 sub allowed {	Line 6699 sub allowed {
if ($match) {	if ($match) {
if ($env{'user.priv.'.$env{'request.role'}.'./'}	if ($env{'user.priv.'.$env{'request.role'}.'./'}
=~/\Q$priv\E\&([^\:]*)/) {	=~/\Q$priv\E\&([^\:]*)/) {
my $value = $1;	my @blockers = &has_comm_blocking($priv,$symb,$uri);
if ($noblockcheck) {	if (@blockers > 0) {
$thisallowed.=$value;	$thisallowed = 'B';
} else {	} else {
my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache);	$thisallowed.=$1;
if (@blockers > 0) {
$thisallowed = 'B';
} else {
$thisallowed.=$value;
}
}	}
}	}
} else {	} else {
Line 8121 sub allowed {	Line 6715 sub allowed {
$refuri=&declutter($refuri);	$refuri=&declutter($refuri);
my ($match) = &is_on_map($refuri);	my ($match) = &is_on_map($refuri);
if ($match) {	if ($match) {
if ($noblockcheck) {	my @blockers = &has_comm_blocking($priv,$symb,$refuri);
$thisallowed='F';	if (@blockers > 0) {
	$thisallowed = 'B';
} else {	} else {
my @blockers = &has_comm_blocking($priv,'',$refuri,'',1);	$thisallowed='F';
if (@blockers > 0) {
$thisallowed = 'B';
} else {
$thisallowed='F';
}
}	}
}	}
}	}
Line 8141 sub allowed {	Line 6731 sub allowed {
&& $thisallowed ne 'F'	&& $thisallowed ne 'F'
&& $thisallowed ne '2'	&& $thisallowed ne '2'
&& &is_portfolio_url($uri)) {	&& &is_portfolio_url($uri)) {
$thisallowed = &portfolio_access($uri,$clientip);	$thisallowed = &portfolio_access($uri);
}	}

# 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 8171 sub allowed {	Line 6761 sub allowed {

if ($env{'request.course.id'}) {	if ($env{'request.course.id'}) {

# If this is modifying password (internal auth) domains must match for user and user's role.

if ($priv eq 'mip') {
if ($env{'user.domain'} eq $env{'request.role.domain'}) {
return $thisallowed;
} else {
return '';
}
}

$courseprivid=$env{'request.course.id'};	$courseprivid=$env{'request.course.id'};
if ($env{'request.course.sec'}) {	if ($env{'request.course.sec'}) {
$courseprivid.='/'.$env{'request.course.sec'};	$courseprivid.='/'.$env{'request.course.sec'};
Line 8194 sub allowed {	Line 6774 sub allowed {
=~/\Q$priv\E\&([^\:]*)/) {	=~/\Q$priv\E\&([^\:]*)/) {
my $value = $1;	my $value = $1;
if ($priv eq 'bre') {	if ($priv eq 'bre') {
if ($noblockcheck) {	my @blockers = &has_comm_blocking($priv,$symb,$uri);
$thisallowed.=$value;	if (@blockers > 0) {
	$thisallowed = 'B';
} else {	} else {
my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache);	$thisallowed.=$value;
if (@blockers > 0) {
$thisallowed = 'B';
} else {
$thisallowed.=$value;
}
}	}
} else {	} else {
$thisallowed.=$value;	$thisallowed.=$value;
Line 8210 sub allowed {	Line 6786 sub allowed {
$checkreferer=0;	$checkreferer=0;
}	}
}	}

if ($checkreferer) {	if ($checkreferer) {
my $refuri=$env{'httpref.'.$orguri};	my $refuri=$env{'httpref.'.$orguri};
unless ($refuri) {	unless ($refuri) {
Line 8236 sub allowed {	Line 6812 sub allowed {
=~/\Q$priv\E\&([^\:]*)/) {	=~/\Q$priv\E\&([^\:]*)/) {
my $value = $1;	my $value = $1;
if ($priv eq 'bre') {	if ($priv eq 'bre') {
if ($noblockcheck) {	my @blockers = &has_comm_blocking($priv,$symb,$refuri);
$thisallowed.=$value;	if (@blockers > 0) {
	$thisallowed = 'B';
} else {	} else {
my @blockers = &has_comm_blocking($priv,'',$refuri,'',1);	$thisallowed.=$value;
if (@blockers > 0) {
$thisallowed = 'B';
} else {
$thisallowed.=$value;
}
}	}
} else {	} else {
$thisallowed.=$value;	$thisallowed.=$value;
Line 8281 sub allowed {	Line 6853 sub allowed {
#	#

# Possibly locked functionality, check all courses	# Possibly locked functionality, check all courses
# In roles.tab, L (unless locked) available for bre, pch, plc, pac and sma.
# Locks might take effect only after 10 minutes cache expiration for other	# Locks might take effect only after 10 minutes cache expiration for other
# courses, and 2 minutes for current course, in which user has st or ta role	# courses, and 2 minutes for current course
# which is neither expired nor a future role (unless current course).

my ($needlockcheck,$now,$crsonly);	my $envkey;
if ($thisallowed=~/L/) {	if ($thisallowed=~/L/) {
$now = time;	foreach $envkey (keys(%env)) {
if ($priv eq 'bre') {
if ($uri ne '') {
if ($orguri =~ m{^/+res/}) {
if ($uri =~ m{^lib/templates/}) {
if ($env{'request.course.id'}) {
$crsonly = 1;
$needlockcheck = 1;
}
} else {
$needlockcheck = 1;
}
} elsif ($env{'request.course.id'}) {
my ($crsdom,$crsnum) = split('_',$env{'request.course.id'});
if (($uri =~ m{^(adm\|uploaded\|public)/$crsdom/$crsnum/}) \|\|
($uri =~ m{^adm/$match_domain/$match_username/\d+/(smppg\|bulletinboard)$})) {
$crsonly = 1;
}
$needlockcheck = 1;
}
}
} elsif (($priv eq 'pch') \|\| ($priv eq 'plc') \|\| ($priv eq 'pac') \|\| ($priv eq 'sma')) {
$needlockcheck = 1;
}
}
if ($needlockcheck) {
foreach my $envkey (keys(%env)) {
if ($envkey=~/^user\.role\.(st\|ta)\.([^\.]*)/) {	if ($envkey=~/^user\.role\.(st\|ta)\.([^\.]*)/) {
my $courseid=$2;	my $courseid=$2;
my $roleid=$1.'.'.$2;	my $roleid=$1.'.'.$2;
$courseid=~s/^\///;	$courseid=~s/^\///;
unless ($env{'request.role'} eq $roleid) {
my ($start,$end) = split(/\./,$env{$envkey});
next unless (($now >= $start) && (!$end \|\| $end > $now));
}
my $expiretime=600;	my $expiretime=600;
if ($env{'request.role'} eq $roleid) {	if ($env{'request.role'} eq $roleid) {
$expiretime=120;	$expiretime=120;
Line 8345 sub allowed {	Line 6885 sub allowed {
}	}
if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)	if (($env{$prefix.'priv.'.$priv.'.lock.sections'}=~/\,\Q$csec\E\,/)
\|\| ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {	\|\| ($env{$prefix.'priv.'.$priv.'.lock.sections'} eq 'all')) {
if ($env{$prefix.'priv.'.$priv.'.lock.expire'}>time) {	if ($env{'priv.'.$priv.'.lock.expire'}>time) {
&log($env{'user.domain'},$env{'user.name'},	&log($env{'user.domain'},$env{'user.name'},
$env{'user.home'},	$env{'user.home'},
'Locked by priv: '.$priv.' for '.$uri.' due to '.	'Locked by priv: '.$priv.' for '.$uri.' due to '.
Line 8357 sub allowed {	Line 6897 sub allowed {
}	}
}	}
}	}

#	#
# Rest of the restrictions depend on selected course	# Rest of the restrictions depend on selected course
#	#
Line 8452 sub constructaccess {	Line 6992 sub constructaccess {
my ($ownername,$ownerdomain,$ownerhome);	my ($ownername,$ownerdomain,$ownerhome);

($ownerdomain,$ownername) =	($ownerdomain,$ownername) =
($url=~ m{^(?:\Q$perlvar{'lonDocRoot'}\E\|)/priv/($match_domain)/($match_username)(?:/\|$)});	($url=~ m{^(?:\Q$perlvar{'lonDocRoot'}\E\|)/priv/($match_domain)/($match_username)/});

# The URL does not really point to any authorspace, forget it	# The URL does not really point to any authorspace, forget it
unless (($ownername) && ($ownerdomain)) { return ''; }	unless (($ownername) && ($ownerdomain)) { return ''; }
Line 8507 sub constructaccess {	Line 7047 sub constructaccess {
return '';	return '';
}	}

# ----------------------------------------------------------- Content Blocking

{
# Caches for faster Course Contents display where content blocking
# is in operation (i.e., interval param set) for timed quiz.
#
# User for whom data are being temporarily cached.
my $cacheduser='';
# Course for which data are being temporarily cached.
my $cachedcid='';
# Cached blockers for this user (a hash of blocking items).
my %cachedblockers=();
# When the data were last cached.
my $cachedlast='';

sub load_all_blockers {
my ($uname,$udom)=@_;
if (($uname ne '') && ($udom ne '')) {
if (($cacheduser eq $uname.':'.$udom) &&
($cachedcid eq $env{'request.course.id'}) &&
(abs($cachedlast-time)<5)) {
return;
}
}
$cachedlast=time;
$cacheduser=$uname.':'.$udom;
$cachedcid=$env{'request.course.id'};
%cachedblockers = &get_commblock_resources();
return;
}

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 8558 sub get_comm_blocks {	Line 7067 sub get_comm_blocks {
return %commblocks;	return %commblocks;
}	}

sub get_commblock_resources {	sub has_comm_blocking {
my ($blocks) = @_;	my ($priv,$symb,$uri,$blocks) = @_;
my %blockers = ();	return unless ($env{'request.course.id'});
return %blockers unless ($env{'request.course.id'});	return unless ($priv eq 'bre');
return %blockers if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/);	return 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 %blockers unless (keys(%commblocks) > 0);	return unless (keys(%commblocks) > 0);
my $navmap = Apache::lonnavmaps::navmap->new();	if (!$symb) { $symb=&symbread($uri,1); }
return %blockers unless (ref($navmap));	my ($map,$resid,undef)=&decode_symb($symb);
	my %tocheck = (
	maps => $map,
	resources => $symb,
	);
	my @blockers;
my $now = time;	my $now = time;
	my $navmap = Apache::lonnavmaps::navmap->new();
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,$2);
Line 8580 sub get_commblock_resources {	Line 7095 sub get_commblock_resources {
if (ref($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{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) {	if ($commblocks{$block}{'blocks'}{'docs'}{'maps'}{$map}) {
$blockers{$block}{maps} = $commblocks{$block}{'blocks'}{'docs'}{'maps'};	unless (grep(/^\Q$block\E$/,@blockers)) {
	push(@blockers,$block);
	}
}	}
}	}
if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {	if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) {	if ($commblocks{$block}{'blocks'}{'docs'}{'resources'}{$symb}) {
$blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'};	unless (grep(/^\Q$block\E$/,@blockers)) {
	push(@blockers,$block);
	}
}	}
}	}
}	}
Line 8597 sub get_commblock_resources {	Line 7116 sub get_commblock_resources {
my @to_test;	my @to_test;
if (ref($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 @interval;	my $check_interval;
my $type = 'map';	if (&check_docs_block($commblocks{$block}{'blocks'}{'docs'},\%tocheck)) {
if ($item eq 'course') {	my @interval;
$type = 'course';	my $type = 'map';
@interval=&EXT("resource.0.interval");	if ($item eq 'course') {
} else {	$type = 'course';
if ($item =~ /___\d+___/) {	@interval=&EXT("resource.0.interval");
$type = 'resource';
@interval=&EXT("resource.0.interval",$item);
if (ref($navmap)) {
my $res = $navmap->getBySymb($item);
push(@to_test,$res);
}
} else {	} else {
my $mapsymb = &symbread($item,1);	if ($item =~ /___\d+___/) {
if ($mapsymb) {	$type = 'resource';
if (ref($navmap)) {	@interval=&EXT("resource.0.interval",$item);
my $mapres = $navmap->getBySymb($mapsymb);	if (ref($navmap)) {
if (ref($mapres)) {	my $res = $navmap->getBySymb($item);
my $first = $mapres->map_start();	push(@to_test,$res);
my $finish = $mapres->map_finish();	}
my $it = $navmap->getIterator($first,$finish,undef,0,0);	} else {
if (ref($it)) {	my $mapsymb = &symbread($item,1);
my $res;	if ($mapsymb) {
while ($res = $it->next(undef,1)) {	if (ref($navmap)) {
next unless (ref($res));	my $mapres = $navmap->getBySymb($mapsymb);
my $symb = $res->symb();	@to_test = $mapres->retrieveResources($mapres,undef,0,1);
next if (($symb eq $mapsymb) \|\| ($symb eq ''));	foreach my $res (@to_test) {
	my $symb = $res->symb();
	next if ($symb eq $mapsymb);
	if ($symb ne '') {
@interval=&EXT("resource.0.interval",$symb);	@interval=&EXT("resource.0.interval",$symb);
if ($interval[1] eq 'map') {	last;
if ($res->answerable()) {
push(@to_test,$res);
last;
}
}
}	}
}	}
}	}
}	}
}	}
}	}
}	if ($interval[0] =~ /\d+/) {
if ($interval[0] =~ /^(\d+)/) {	my $first_access;
my $timelimit = $1;	if ($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 = $first_access+$timelimit;	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->answerable()) {	push(@blockers,$block);
$activeblock = 1;	}
last;	last;
}	}
}
if ($activeblock) {
if (ref($commblocks{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) {
$blockers{$block}{'maps'} = $commblocks{$block}{'blocks'}{'docs'}{'maps'};
}
}
if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'resources'}})) {
$blockers{$block}{'resources'} = $commblocks{$block}{'blocks'}{'docs'}{'resources'};
}	}
}	}
}	}
Line 8678 sub get_commblock_resources {	Line 7179 sub get_commblock_resources {
}	}
}	}
}	}
return %blockers;	return @blockers;
}	}

sub has_comm_blocking {	sub check_docs_block {
my ($priv,$symb,$uri,$ignoresymbdb,$noenccheck,$blocked,$blocks) = @_;	my ($docsblock,$tocheck) =@_;
my @blockers;	if ((ref($docsblock) ne 'HASH') \|\| (ref($tocheck) ne 'HASH')) {
return unless ($env{'request.course.id'});	return;
return unless ($priv eq 'bre');
return if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/);
return if ($env{'request.state'} eq 'construct');
my %blockinfo;
if (ref($blocks) eq 'HASH') {
%blockinfo = &get_commblock_resources($blocks);
} else {
&load_all_blockers($env{'user.name'},$env{'user.domain'});
%blockinfo = %cachedblockers;
}
return unless (keys(%blockinfo) > 0);
my (%possibles,@symbs);
if (!$symb) {
$symb = &symbread($uri,1,1,1,\%possibles,$ignoresymbdb,$noenccheck);
}	}
if ($symb) {	if (ref($docsblock->{'maps'}) eq 'HASH') {
@symbs = ($symb);	if ($tocheck->{'maps'}) {
} elsif (keys(%possibles)) {	if ($docsblock->{'maps'}{$tocheck->{'maps'}}) {
@symbs = keys(%possibles);	return 1;
}
my $noblock;
foreach my $symb (@symbs) {
last if ($noblock);
my ($map,$resid,$resurl)=&decode_symb($symb);
foreach my $block (keys(%blockinfo)) {
if ($block =~ /^firstaccess____(.+)$/) {
my $item = $1;
unless ($blocked) {
if (($item eq $map) \|\| ($item eq $symb)) {
$noblock = 1;
last;
}
}
}
if (ref($blockinfo{$block}) eq 'HASH') {
if (ref($blockinfo{$block}{'resources'}) eq 'HASH') {
if ($blockinfo{$block}{'resources'}{$symb}) {
unless (grep(/^\Q$block\E$/,@blockers)) {
push(@blockers,$block);
}
}
}
if (ref($blockinfo{$block}{'maps'}) eq 'HASH') {
if ($blockinfo{$block}{'maps'}{$map}) {
unless (grep(/^\Q$block\E$/,@blockers)) {
push(@blockers,$block);
}
}
}
}	}
}	}
}	}
unless ($noblock) {	if (ref($docsblock->{'resources'}) eq 'HASH') {
return @blockers;	if ($tocheck->{'resources'}) {
	if ($docsblock->{'resources'}{$tocheck->{'resources'}}) {
	return 1;
	}
	}
}	}
return;	return;
}	}
}

# -------------------------------- Deversion and split uri into path an filename

#	#
# Removes the version from a URI and	# Removes the versino 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 8815 sub get_symb_from_alias {	Line 7273 sub get_symb_from_alias {

sub definerole {	sub definerole {
if (allowed('mcr','/')) {	if (allowed('mcr','/')) {
my ($rolename,$sysrole,$domrole,$courole,$uname,$udom)=@_;	my ($rolename,$sysrole,$domrole,$courole)=@_;
foreach my $role (split(':',$sysrole)) {	foreach my $role (split(':',$sysrole)) {
my ($crole,$cqual)=split(/\&/,$role);	my ($crole,$cqual)=split(/\&/,$role);
if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }	if ($pr{'cr:s'}!~/\Q$crole\E/) { return "refused:s:$crole"; }
Line 8843 sub definerole {	Line 7301 sub definerole {
}	}
}	}
}	}
my $uhome;
if (($uname ne '') && ($udom ne '')) {
$uhome = &homeserver($uname,$udom);
return $uhome if ($uhome eq 'no_host');
} else {
$uname = $env{'user.name'};
$udom = $env{'user.domain'};
$uhome = $env{'user.home'};
}
my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".	my $command="encrypt:rolesput:$env{'user.domain'}:$env{'user.name'}:".
"$udom:$uname:rolesdef_$rolename=".	"$env{'user.domain'}:$env{'user.name'}:".
	"rolesdef_$rolename=".
escape($sysrole.'_'.$domrole.'_'.$courole);	escape($sysrole.'_'.$domrole.'_'.$courole);
return reply($command,$uhome);	return reply($command,$env{'user.home'});
} else {	} else {
return 'refused';	return 'refused';
}	}
Line 8870 sub metadata_query {	Line 7320 sub metadata_query {
my @server_list = (defined($server_array) ? @$server_array	my @server_list = (defined($server_array) ? @$server_array
: keys(%libserv) );	: keys(%libserv) );
for my $server (@server_list) {	for my $server (@server_list) {
my $domains = '';	my $domains = '';
if (ref($domains_hash) eq 'HASH') {	if (ref($domains_hash) eq 'HASH') {
$domains = $domains_hash->{$server};	$domains = $domains_hash->{$server};
}	}
unless ($custom or $customshow) {	unless ($custom or $customshow) {
my $reply=&reply("querysend:".&escape($query).':::'.&escape($domains),$server);	my $reply=&reply("querysend:".&escape($query).':::'.&escape($domains),$server);
Line 8937 sub update_allusers_table {	Line 7387 sub update_allusers_table {

sub fetch_enrollment_query {	sub fetch_enrollment_query {
my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;	my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
my ($homeserver,$sleep,$loopmax);	my $homeserver;
my $maxtries = 1;	my $maxtries = 1;
if ($context eq 'automated') {	if ($context eq 'automated') {
$homeserver = $perlvar{'lonHostID'};	$homeserver = $perlvar{'lonHostID'};
$sleep = 2;
$loopmax = 100;
$maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout	$maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
} else {	} else {
$homeserver = &homeserver($cnum,$dom);	$homeserver = &homeserver($cnum,$dom);
Line 8960 sub fetch_enrollment_query {	Line 7408 sub fetch_enrollment_query {
&logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);	&logthis('fetch_enrollment_query: invalid queryid: '.$queryid.' for host: '.$host.' and homeserver: '.$homeserver.' context: '.$context.' '.$cnum);
return 'error: '.$queryid;	return 'error: '.$queryid;
}	}
my $reply = &get_query_reply($queryid,$sleep,$loopmax);	my $reply = &get_query_reply($queryid);
my $tries = 1;	my $tries = 1;
while (($reply=~/^timeout/) && ($tries < $maxtries)) {	while (($reply=~/^timeout/) && ($tries < $maxtries)) {
$reply = &get_query_reply($queryid,$sleep,$loopmax);	$reply = &get_query_reply($queryid);
$tries ++;	$tries ++;
}	}
if ( ($reply =~/^timeout/) \|\| ($reply =~/^error/) ) {	if ( ($reply =~/^timeout/) \|\| ($reply =~/^error/) ) {
&logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);	&logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$env{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
} else {	} else {
my @responses = split(/:/,$reply);	my @responses = split(/:/,$reply);
if (grep { $_ eq $homeserver } &current_machine_ids()) {	if ($homeserver eq $perlvar{'lonHostID'}) {
foreach my $line (@responses) {	foreach my $line (@responses) {
my ($key,$value) = split(/=/,$line,2);	my ($key,$value) = split(/=/,$line,2);
$$replyref{$key} = $value;	$$replyref{$key} = $value;
Line 8988 sub fetch_enrollment_query {	Line 7436 sub fetch_enrollment_query {
if ($xml_classlist =~ /^error/) {	if ($xml_classlist =~ /^error/) {
&logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);	&logthis('fetch_enrollment_query - autoretrieve error: '.$xml_classlist.' for '.$filename.' from server: '.$homeserver.' '.$context.' '.$cnum);
} else {	} else {
if ( open(FILE,">",$destname) ) {	if ( open(FILE,">$destname") ) {
print FILE &unescape($xml_classlist);	print FILE &unescape($xml_classlist);
close(FILE);	close(FILE);
} else {	} else {
Line 9005 sub fetch_enrollment_query {	Line 7453 sub fetch_enrollment_query {
}	}

sub get_query_reply {	sub get_query_reply {
my ($queryid,$sleep,$loopmax) = @_;	my $queryid=shift;
if (($sleep eq '') \|\| ($sleep !~ /^\d+\.?\d*$/)) {
$sleep = 0.2;
}
if (($loopmax eq '') \|\| ($loopmax =~ /\D/)) {
$loopmax = 100;
}
my $replyfile=LONCAPA::tempdir().$queryid;	my $replyfile=LONCAPA::tempdir().$queryid;
my $reply='';	my $reply='';
for (1..$loopmax) {	for (1..100) {
sleep($sleep);	sleep 2;
if (-e $replyfile.'.end') {	if (-e $replyfile.'.end') {
if (open(my $fh,"<",$replyfile)) {	if (open(my $fh,$replyfile)) {
$reply = join('',<$fh>);	$reply = join('',<$fh>);
close($fh);	close($fh);
} else { return 'error: reply_file_error'; }	} else { return 'error: reply_file_error'; }
Line 9138 sub auto_validate_instcode {	Line 7580 sub auto_validate_instcode {
return ($outcome,$description,$defaultcredits);	return ($outcome,$description,$defaultcredits);
}	}

sub auto_validate_inst_crosslist {
my ($cnum,$cdom,$instcode,$inst_xlist,$coowner) = @_;
my ($homeserver,$response);
if (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/)) {
$homeserver = &homeserver($cnum,$cdom);
}
if (!defined($homeserver)) {
if ($cdom =~ /^$match_domain$/) {
$homeserver = &domain($cdom,'primary');
}
}
unless (($homeserver eq '') \|\| ($homeserver eq 'no_host')) {
$response=&reply('autovalidateinstcrosslist:'.$cdom.':'.
&escape($instcode).':'.&escape($inst_xlist).':'.
&escape($coowner),$homeserver);
}
return $response;
}

sub auto_create_password {	sub auto_create_password {
my ($cnum,$cdom,$authparam,$udom) = @_;	my ($cnum,$cdom,$authparam,$udom) = @_;
my ($homeserver,$response);	my ($homeserver,$response);
Line 9396 sub auto_courserequest_checks {	Line 7819 sub auto_courserequest_checks {
}	}

sub auto_courserequest_validation {	sub auto_courserequest_validation {
my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist,$custominfo) = @_;	my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist) = @_;
my ($homeserver,$response);	my ($homeserver,$response);
if ($dom =~ /^$match_domain$/) {	if ($dom =~ /^$match_domain$/) {
$homeserver = &domain($dom,'primary');	$homeserver = &domain($dom,'primary');
}	}
unless ($homeserver eq 'no_host') {	unless ($homeserver eq 'no_host') {
my $customdata;
if (ref($custominfo) eq 'HASH') {
$customdata = &freeze_escape($custominfo);
}
$response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner).	$response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner).
':'.&escape($crstype).':'.&escape($inststatuslist).	':'.&escape($crstype).':'.&escape($inststatuslist).
':'.&escape($instcode).':'.&escape($instseclist).':'.	':'.&escape($instcode).':'.&escape($instseclist),
$customdata,$homeserver));	$homeserver));
}	}
return $response;	return $response;
}	}
Line 9428 sub auto_validate_class_sec {	Line 7848 sub auto_validate_class_sec {
return $response;	return $response;
}	}

sub auto_instsec_reformat {
my ($cdom,$action,$instsecref) = @_;
return unless(($action eq 'clutter') \|\| ($action eq 'declutter'));
my @homeservers;
if (defined(&domain($cdom,'primary'))) {
push(@homeservers,&domain($cdom,'primary'));
} else {
my %servers = &get_servers($cdom,'library');
foreach my $tryserver (keys(%servers)) {
if (!grep(/^\Q$tryserver\E$/,@homeservers)) {
push(@homeservers,$tryserver);
}
}
}
my $response;
my %reformatted = %{$instsecref};
foreach my $server (@homeservers) {
if (ref($instsecref) eq 'HASH') {
my $info = &freeze_escape($instsecref);
my $response=&reply('autoinstsecreformat:'.$cdom.':'.
$action.':'.$info,$server);
next if ($response =~ /(con_lost\|error\|no_such_host\|refused\|unknown_command)/);
my @items = split(/&/,$response);
foreach my $item (@items) {
my ($key,$value) = split(/=/,$item);
$reformatted{&unescape($key)} = &thaw_unescape($value);
}
}
}
return %reformatted;
}

sub auto_validate_instclasses {
my ($cdom,$cnum,$owners,$classesref) = @_;
my ($homeserver,%validations);
$homeserver = &homeserver($cnum,$cdom);
unless ($homeserver eq 'no_host') {
my $ownerlist;
if (ref($owners) eq 'ARRAY') {
$ownerlist = join(',',@{$owners});
} else {
$ownerlist = $owners;
}
if (ref($classesref) eq 'HASH') {
my $classes = &freeze_escape($classesref);
my $response=&reply('autovalidateinstclasses:'.&escape($ownerlist).
':'.$cdom.':'.$classes,$homeserver);
unless ($response =~ /(con_lost\|error\|no_such_host\|refused)/) {
my @items = split(/&/,$response);
foreach my $item (@items) {
my ($key,$value) = split('=',$item);
$validations{&unescape($key)} = &thaw_unescape($value);
}
}
}
}
return %validations;
}

sub auto_crsreq_update {
my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title,
$code,$accessstart,$accessend,$inbound) = @_;
my ($homeserver,%crsreqresponse);
if ($cdom =~ /^$match_domain$/) {
$homeserver = &domain($cdom,'primary');
}
unless (($homeserver eq 'no_host') \|\| ($homeserver eq '')) {
my $info;
if (ref($inbound) eq 'HASH') {
$info = &freeze_escape($inbound);
}
my $response=&reply('autocrsrequpdate:'.$cdom.':'.$cnum.':'.&escape($crstype).
':'.&escape($action).':'.&escape($ownername).':'.
&escape($ownerdomain).':'.&escape($fullname).':'.
&escape($title).':'.&escape($code).':'.
&escape($accessstart).':'.&escape($accessend).':'.$info,$homeserver);
unless ($response =~ /(con_lost\|error\|no_such_host\|refused)/) {
my @items = split(/&/,$response);
foreach my $item (@items) {
my ($key,$value) = split('=',$item);
$crsreqresponse{&unescape($key)} = &thaw_unescape($value);
}
}
}
return \%crsreqresponse;
}

sub auto_export_grades {
my ($cdom,$cnum,$inforef,$gradesref) = @_;
my ($homeserver,%exportresponse);
if ($cdom =~ /^$match_domain$/) {
$homeserver = &domain($cdom,'primary');
}
unless (($homeserver eq 'no_host') \|\| ($homeserver eq '')) {
my $info;
if (ref($inforef) eq 'HASH') {
$info = &freeze_escape($inforef);
}
if (ref($gradesref) eq 'HASH') {
my $grades = &freeze_escape($gradesref);
my $response=&reply('encrypt:autoexportgrades:'.$cdom.':'.$cnum.':'.
$info.':'.$grades,$homeserver);
unless ($response =~ /(con_lost\|error\|no_such_host\|refused\|unknown_command)/) {
my @items = split(/&/,$response);
foreach my $item (@items) {
my ($key,$value) = split('=',$item);
$exportresponse{&unescape($key)} = &thaw_unescape($value);
}
}
}
}
return \%exportresponse;
}

sub check_instcode_cloning {
my ($codedefaults,$code_order,$cloner,$clonefromcode,$clonetocode) = @_;
unless ((ref($codedefaults) eq 'HASH') && (ref($code_order) eq 'ARRAY')) {
return;
}
my $canclone;
if (@{$code_order} > 0) {
my $instcoderegexp ='^';
my @clonecodes = split(/\&/,$cloner);
foreach my $item (@{$code_order}) {
if (grep(/^\Q$item\E=/,@clonecodes)) {
foreach my $pair (@clonecodes) {
my ($key,$val) = split(/\=/,$pair,2);
$val = &unescape($val);
if ($key eq $item) {
$instcoderegexp .= '('.$val.')';
last;
}
}
} else {
$instcoderegexp .= $codedefaults->{$item};
}
}
$instcoderegexp .= '$';
my (@from,@to);
eval {
(@from) = ($clonefromcode =~ /$instcoderegexp/);
(@to) = ($clonetocode =~ /$instcoderegexp/);
};
if ((@from > 0) && (@to > 0)) {
my @diffs = &Apache::loncommon::compare_arrays(\@from,\@to);
if (!@diffs) {
$canclone = 1;
}
}
}
return $canclone;
}

sub default_instcode_cloning {
my ($clonedom,$domdefclone,$clonefromcode,$clonetocode,$codedefaultsref,$codeorderref) = @_;
my (%codedefaults,@code_order,$canclone);
if ((ref($codedefaultsref) eq 'HASH') && (ref($codeorderref) eq 'ARRAY')) {
%codedefaults = %{$codedefaultsref};
@code_order = @{$codeorderref};
} elsif ($clonedom) {
&auto_instcode_defaults($clonedom,\%codedefaults,\@code_order);
}
if (($domdefclone) && (@code_order)) {
my @clonecodes = split(/\+/,$domdefclone);
my $instcoderegexp ='^';
foreach my $item (@code_order) {
if (grep(/^\Q$item\E$/,@clonecodes)) {
$instcoderegexp .= '('.$codedefaults{$item}.')';
} else {
$instcoderegexp .= $codedefaults{$item};
}
}
$instcoderegexp .= '$';
my (@from,@to);
eval {
(@from) = ($clonefromcode =~ /$instcoderegexp/);
(@to) = ($clonetocode =~ /$instcoderegexp/);
};
if ((@from > 0) && (@to > 0)) {
my @diffs = &Apache::loncommon::compare_arrays(\@from,\@to);
if (!@diffs) {
$canclone = 1;
}
}
}
return $canclone;
}

# ------------------------------------------------------- Course Group routines	# ------------------------------------------------------- Course Group routines

sub get_coursegroups {	sub get_coursegroups {
Line 9884 sub assignrole {	Line 8116 sub assignrole {
}	}
}	}
} elsif ($context eq 'requestauthor') {	} elsif ($context eq 'requestauthor') {
if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&	if (($udom eq $env{'user.domain'}) && ($uname eq $env{'user.name'}) &&
($url eq '/'.$udom.'/') && ($role eq 'au')) {	($url eq '/'.$udom.'/') && ($role eq 'au')) {
if ($env{'environment.requestauthor'} eq 'automatic') {	if ($env{'environment.requestauthor'} eq 'automatic') {
$refused = '';	$refused = '';
Line 9892 sub assignrole {	Line 8124 sub assignrole {
my %domdefaults = &get_domain_defaults($udom);	my %domdefaults = &get_domain_defaults($udom);
if (ref($domdefaults{'requestauthor'}) eq 'HASH') {	if (ref($domdefaults{'requestauthor'}) eq 'HASH') {
my $checkbystatus;	my $checkbystatus;
if ($env{'user.adv'}) {	if ($env{'user.adv'}) {
my $disposition = $domdefaults{'requestauthor'}{'_LC_adv'};	my $disposition = $domdefaults{'requestauthor'}{'_LC_adv'};
if ($disposition eq 'automatic') {	if ($disposition eq 'automatic') {
$refused = '';	$refused = '';
} elsif ($disposition eq '') {	} elsif ($disposition eq '') {
$checkbystatus = 1;	$checkbystatus = 1;
}	}
} else {	} else {
$checkbystatus = 1;	$checkbystatus = 1;
}	}
Line 9980 sub assignrole {	Line 8212 sub assignrole {
&courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,	&courserolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
$selfenroll,$context);	$selfenroll,$context);
} elsif (($role eq 'li') \|\| ($role eq 'dg') \|\| ($role eq 'sc') \|\|	} elsif (($role eq 'li') \|\| ($role eq 'dg') \|\| ($role eq 'sc') \|\|
($role eq 'au') \|\| ($role eq 'dc') \|\| ($role eq 'dh') \|\|	($role eq 'au') \|\| ($role eq 'dc')) {
($role eq 'da')) {
&domainrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,	&domainrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
$context);	$context);
} elsif (($role eq 'ca') \|\| ($role eq 'aa')) {	} elsif (($role eq 'ca') \|\| ($role eq 'aa')) {
&coauthorrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,	&coauthorrolelog($role,$uname,$udom,$url,$origstart,$origend,$delflag,
$context);	$context);
}	}
if ($role eq 'cc') {	if ($role eq 'cc') {
&autoupdate_coowners($url,$end,$start,$uname,$udom);	&autoupdate_coowners($url,$end,$start,$uname,$udom);
Line 10004 sub autoupdate_coowners {	Line 8235 sub autoupdate_coowners {
if ($domdesign{$cdom.'.autoassign.co-owners'}) {	if ($domdesign{$cdom.'.autoassign.co-owners'}) {
my %coursehash = &coursedescription($cdom.'_'.$cnum);	my %coursehash = &coursedescription($cdom.'_'.$cnum);
my $instcode = $coursehash{'internal.coursecode'};	my $instcode = $coursehash{'internal.coursecode'};
my $xlists = $coursehash{'internal.crosslistings'};
if ($instcode ne '') {	if ($instcode ne '') {
if (($start && $start <= $now) && ($end == 0) \|\| ($end > $now)) {	if (($start && $start <= $now) && ($end == 0) \|\| ($end > $now)) {
unless ($coursehash{'internal.courseowner'} eq $uname.':'.$udom) {	unless ($coursehash{'internal.courseowner'} eq $uname.':'.$udom) {
my ($delcoowners,@newcoowners,$putresult,$delresult,$coowners);	my ($delcoowners,@newcoowners,$putresult,$delresult,$coowners);
my ($result,$desc) = &auto_validate_instcode($cnum,$cdom,$instcode,$uname.':'.$udom);	my ($result,$desc) = &auto_validate_instcode($cnum,$cdom,$instcode,$uname.':'.$udom);
unless ($result eq 'valid') {
if ($xlists ne '') {
foreach my $xlist (split(',',$xlists)) {
my ($inst_crosslist,$lcsec) = split(':',$xlist);
$result =
&auto_validate_inst_crosslist($cnum,$cdom,$instcode,
$inst_crosslist,$uname.':'.$udom);
last if ($result eq 'valid');
}
}
}
if ($result eq 'valid') {	if ($result eq 'valid') {
if ($coursehash{'internal.co-owners'}) {	if ($coursehash{'internal.co-owners'}) {
foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {	foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
Line 10033 sub autoupdate_coowners {	Line 8252 sub autoupdate_coowners {
} else {	} else {
push(@newcoowners,$uname.':'.$udom);	push(@newcoowners,$uname.':'.$udom);
}	}
} elsif ($coursehash{'internal.co-owners'}) {	} else {
foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {	if ($coursehash{'internal.co-owners'}) {
unless ($coowner eq $uname.':'.$udom) {	foreach my $coowner (split(',',$coursehash{'internal.co-owners'})) {
push(@newcoowners,$coowner);	unless ($coowner eq $uname.':'.$udom) {
	push(@newcoowners,$coowner);
	}
	}
	unless (@newcoowners > 0) {
	$delcoowners = 1;
	$coowners = '';
}	}
}
unless (@newcoowners > 0) {
$delcoowners = 1;
$coowners = '';
}	}
}	}
if (@newcoowners \|\| $delcoowners) {	if (@newcoowners \|\| $delcoowners) {
Line 10095 sub store_coowners {	Line 8316 sub store_coowners {
sub modifyuserauth {	sub modifyuserauth {
my ($udom,$uname,$umode,$upass)=@_;	my ($udom,$uname,$umode,$upass)=@_;
my $uhome=&homeserver($uname,$udom);	my $uhome=&homeserver($uname,$udom);
my $allowed;	unless (&allowed('mau',$udom)) { return 'refused'; }
if (&allowed('mau',$udom)) {
$allowed = 1;
} elsif (($umode eq 'internal') && ($udom eq $env{'user.domain'}) &&
($env{'request.course.id'}) && (&allowed('mip',$env{'request.course.id'})) &&
(!$env{'course.'.$env{'request.course.id'}.'.internal.nopasswdchg'})) {
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
if (($cdom ne '') && ($cnum ne '')) {
my $is_owner = &is_course_owner($cdom,$cnum);
if ($is_owner) {
$allowed = 1;
}
}
}
unless ($allowed) { return 'refused'; }
&logthis('Call to modify user authentication '.$udom.', '.$uname.', '.	&logthis('Call to modify user authentication '.$udom.', '.$uname.', '.
$umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.	$umode.' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
' in domain '.$env{'request.role.domain'});	' in domain '.$env{'request.role.domain'});
my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.	my $reply=&reply('encrypt:changeuserauth:'.$udom.':'.$uname.':'.$umode.':'.
&escape($upass),$uhome);	&escape($upass),$uhome);
my $ip = &get_requestor_ip();
&log($env{'user.domain'},$env{'user.name'},$env{'user.home'},	&log($env{'user.domain'},$env{'user.name'},$env{'user.home'},
'Authentication changed for '.$udom.', '.$uname.', '.$umode.	'Authentication changed for '.$udom.', '.$uname.', '.$umode.
'(Remote '.$ip.'): '.$reply);	'(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
&log($udom,,$uname,$uhome,	&log($udom,,$uname,$uhome,
'Authentication changed by '.$env{'user.domain'}.', '.	'Authentication changed by '.$env{'user.domain'}.', '.
$env{'user.name'}.', '.$umode.	$env{'user.name'}.', '.$umode.
'(Remote '.$ip.'): '.$reply);	'(Remote '.$ENV{'REMOTE_ADDR'}.'): '.$reply);
unless ($reply eq 'ok') {	unless ($reply eq 'ok') {
&logthis('Authentication mode error: '.$reply);	&logthis('Authentication mode error: '.$reply);
return 'error: '.$reply;	return 'error: '.$reply;
Line 10312 sub modifyuser {	Line 8517 sub modifyuser {
sub modifystudent {	sub modifystudent {
my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,	my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
$end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,	$end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,
$selfenroll,$context,$inststatus,$credits,$instsec)=@_;	$selfenroll,$context,$inststatus,$credits)=@_;
if (!$cid) {	if (!$cid) {
unless ($cid=$env{'request.course.id'}) {	unless ($cid=$env{'request.course.id'}) {
return 'not_in_class';	return 'not_in_class';
Line 10327 sub modifystudent {	Line 8532 sub modifystudent {
# student's environment	# student's environment
$uid = undef if (!$forceid);	$uid = undef if (!$forceid);
$reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,	$reply = &modify_student_enrollment($udom,$uname,$uid,$first,$middle,$last,
$gene,$usec,$end,$start,$type,$locktype,	$gene,$usec,$end,$start,$type,$locktype,
$cid,$selfenroll,$context,$credits,$instsec);	$cid,$selfenroll,$context,$credits);
return $reply;	return $reply;
}	}

sub modify_student_enrollment {	sub modify_student_enrollment {
my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,	my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,
$locktype,$cid,$selfenroll,$context,$credits,$instsec) = @_;	$locktype,$cid,$selfenroll,$context,$credits) = @_;
my ($cdom,$cnum,$chome);	my ($cdom,$cnum,$chome);
if (!$cid) {	if (!$cid) {
unless ($cid=$env{'request.course.id'}) {	unless ($cid=$env{'request.course.id'}) {
Line 10381 sub modify_student_enrollment {	Line 8586 sub modify_student_enrollment {
my %old_entry = &Apache::lonnet::get('classlist',[$user],$cdom,$cnum);	my %old_entry = &Apache::lonnet::get('classlist',[$user],$cdom,$cnum);
my $reply=cput('classlist',	my $reply=cput('classlist',
{$user =>	{$user =>
join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype,$credits,$instsec) },	join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype,$credits) },
$cdom,$cnum);	$cdom,$cnum);
if (($reply eq 'ok') \|\| ($reply eq 'delayed')) {	if (($reply eq 'ok') \|\| ($reply eq 'delayed')) {
&devalidate_getsection_cache($udom,$uname,$cid);	&devalidate_getsection_cache($udom,$uname,$cid);
Line 10448 sub writecoursepref {	Line 8653 sub writecoursepref {

sub createcourse {	sub createcourse {
my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,	my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,
$course_owner,$crstype,$cnum,$context,$category,$callercontext)=@_;	$course_owner,$crstype,$cnum,$context,$category)=@_;
$url=&declutter($url);	$url=&declutter($url);
my $cid='';	my $cid='';
if ($context eq 'requestcourses') {	if ($context eq 'requestcourses') {
my $can_create = 0;	my $can_create = 0;
my ($ownername,$ownerdom) = split(':',$course_owner);	my ($ownername,$ownerdom) = split(':',$course_owner);
if ($udom eq $ownerdom) {	if ($udom eq $ownerdom) {
my $reload;	if (&usertools_access($ownername,$ownerdom,$category,undef,
if (($callercontext eq 'auto') &&
($ownerdom eq $env{'user.domain'}) && ($ownername eq $env{'user.name'})) {
$reload = 'reload';
}
if (&usertools_access($ownername,$ownerdom,$category,$reload,
$context)) {	$context)) {
$can_create = 1;	$can_create = 1;
}	}
Line 10609 sub generate_coursenum {	Line 8809 sub generate_coursenum {
sub is_course {	sub is_course {
my ($cdom, $cnum) = scalar(@_) == 1 ?	my ($cdom, $cnum) = scalar(@_) == 1 ?
($_[0] =~ /^($match_domain)_($match_courseid)$/) : @_;	($_[0] =~ /^($match_domain)_($match_courseid)$/) : @_;
return unless (($cdom =~ /^$match_domain$/) && ($cnum =~ /^$match_courseid$/));
my $uhome=&homeserver($cnum,$cdom);	return unless $cdom and $cnum;
my $iscourse;
if (grep { $_ eq $uhome } current_machine_ids()) {	my %courses = &courseiddump($cdom, '.', 1, '.', '.', $cnum, undef, undef,
$iscourse = &LONCAPA::Lond::is_course($cdom,$cnum);	'.');
} else {
my $hashid = $cdom.':'.$cnum;	return unless(exists($courses{$cdom.'_'.$cnum}));
($iscourse,my $cached) = &is_cached_new('iscourse',$hashid);
unless (defined($cached)) {
my %courses = &courseiddump($cdom, '.', 1, '.', '.',
$cnum,undef,undef,'.');
$iscourse = 0;
if (exists($courses{$cdom.'_'.$cnum})) {
$iscourse = 1;
}
&do_cache_new('iscourse',$hashid,$iscourse,3600);
}
}
return unless($iscourse);
return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum;	return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum;
}	}

Line 10644 sub store_userdata {	Line 8832 sub store_userdata {
if (($uhome eq '') \|\| ($uhome eq 'no_host')) {	if (($uhome eq '') \|\| ($uhome eq 'no_host')) {
$result = 'error: no_host';	$result = 'error: no_host';
} else {	} else {
$storehash->{'ip'} = &get_requestor_ip();	$storehash->{'ip'} = $ENV{'REMOTE_ADDR'};
$storehash->{'host'} = $perlvar{'lonHostID'};	$storehash->{'host'} = $perlvar{'lonHostID'};

my $namevalue='';	my $namevalue='';
Line 10763 sub save_selected_files {	Line 8951 sub save_selected_files {
my ($user, $path, @files) = @_;	my ($user, $path, @files) = @_;
my $filename = $user."savedfiles";	my $filename = $user."savedfiles";
my @other_files = &files_not_in_path($user, $path);	my @other_files = &files_not_in_path($user, $path);
open (OUT,'>',LONCAPA::tempdir().$filename);	open (OUT, '>'.$tmpdir.$filename);
foreach my $file (@files) {	foreach my $file (@files) {
print (OUT $env{'form.currentpath'}.$file."\n");	print (OUT $env{'form.currentpath'}.$file."\n");
}	}
Line 10777 sub save_selected_files {	Line 8965 sub save_selected_files {
sub clear_selected_files {	sub clear_selected_files {
my ($user) = @_;	my ($user) = @_;
my $filename = $user."savedfiles";	my $filename = $user."savedfiles";
open (OUT,'>',LONCAPA::tempdir().$filename);	open (OUT, '>'.LONCAPA::tempdir().$filename);
print (OUT undef);	print (OUT undef);
close (OUT);	close (OUT);
return ("ok");	return ("ok");
Line 10787 sub files_in_path {	Line 8975 sub files_in_path {
my ($user, $path) = @_;	my ($user, $path) = @_;
my $filename = $user."savedfiles";	my $filename = $user."savedfiles";
my %return_files;	my %return_files;
open (IN,'<',LONCAPA::tempdir().$filename);	open (IN, '<'.LONCAPA::tempdir().$filename);
while (my $line_in = <IN>) {	while (my $line_in = <IN>) {
chomp ($line_in);	chomp ($line_in);
my @paths_and_file = split (m!/!, $line_in);	my @paths_and_file = split (m!/!, $line_in);
Line 10809 sub files_not_in_path {	Line 8997 sub files_not_in_path {
my $filename = $user."savedfiles";	my $filename = $user."savedfiles";
my @return_files;	my @return_files;
my $path_part;	my $path_part;
open(IN, '<',LONCAPA::tempdir().$filename);	open(IN, '<'.LONCAPA::.$filename);
while (my $line = <IN>) {	while (my $line = <IN>) {
#ok, I know it's clunky, but I want it to work	#ok, I know it's clunky, but I want it to work
my @paths_and_file = split(m\|/\|, $line);	my @paths_and_file = split(m\|/\|, $line);
Line 10922 sub modify_access_controls {	Line 9110 sub modify_access_controls {
my $tries = 0;	my $tries = 0;
my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);	my $gotlock = &newput('file_permissions',$lockhash,$domain,$user);

while (($gotlock ne 'ok') && $tries < 10) {	while (($gotlock ne 'ok') && $tries <3) {
$tries ++;	$tries ++;
sleep(0.1);	sleep 1;
$gotlock = &newput('file_permissions',$lockhash,$domain,$user);	$gotlock = &newput('file_permissions',$lockhash,$domain,$user);
}	}
if ($gotlock eq 'ok') {	if ($gotlock eq 'ok') {
Line 11217 sub dirlist {	Line 9405 sub dirlist {
foreach my $user (sort(keys(%allusers))) {	foreach my $user (sort(keys(%allusers))) {
push(@alluserslist,$user.'&user');	push(@alluserslist,$user.'&user');
}	}
if (!%listerror) {	return (\@alluserslist);
# no errors
return (\@alluserslist);
} elsif (scalar(keys(%servers)) == 1) {
# one library server, one error
my ($key) = keys(%listerror);
return (\@alluserslist, $listerror{$key});
} elsif ( grep { $_ eq 'con_lost' } values(%listerror) ) {
# con_lost indicates that we might miss data from at least one
# library server
return (\@alluserslist, 'con_lost');
} else {
# multiple library servers and no con_lost -> data should be
# complete.
return (\@alluserslist);
}

} else {	} else {
return ([],'missing username');	return ([],'missing username');
}	}
Line 11450 sub get_userresdata {	Line 9622 sub get_userresdata {
}	}
#error 2 occurs when the .db doesn't exist	#error 2 occurs when the .db doesn't exist
if ($tmp!~/error: 2 /) {	if ($tmp!~/error: 2 /) {
if ((!defined($cached)) \|\| ($tmp ne 'con_lost')) {	&logthis("<font color=\"blue\">WARNING:".
&logthis("<font color=\"blue\">WARNING:".	" Trying to get resource data for ".
" Trying to get resource data for ".	$uname." at ".$udom.": ".
$uname." at ".$udom.": ".	$tmp."</font>");
$tmp."</font>");
}
} elsif ($tmp=~/error: 2 /) {	} elsif ($tmp=~/error: 2 /) {
#&EXT_cache_set($udom,$uname);	#&EXT_cache_set($udom,$uname);
&do_cache_new('userres',$hashid,undef,600);	&do_cache_new('userres',$hashid,undef,600);
Line 11469 sub get_userresdata {	Line 9639 sub get_userresdata {
# Parameters:	# Parameters:
# $name - Course/user name.	# $name - Course/user name.
# $domain - Name of the domain the user/course is registered on.	# $domain - Name of the domain the user/course is registered on.
# $type - Type of thing $name is (must be 'course' or 'user')	# $type - Type of thing $name is (must be 'course' or 'user'
# @which - Array of names of resources desired.	# @which - Array of names of resources desired.
# Returns:	# Returns:
# The value of the first reasource in @which that is found in the	# The value of the first reasource in @which that is found in the
Line 11490 sub resdata {	Line 9660 sub resdata {
foreach my $item (@which) {	foreach my $item (@which) {
if (defined($result->{$item->[0]})) {	if (defined($result->{$item->[0]})) {
return [$result->{$item->[0]},$item->[1]];	return [$result->{$item->[0]},$item->[1]];
}	}
}	}
return undef;	return undef;
}	}

sub get_domain_lti {
my ($cdom,$context) = @_;
my ($name,%lti);
if ($context eq 'consumer') {
$name = 'ltitools';
} elsif ($context eq 'provider') {
$name = 'lti';
} else {
return %lti;
}
my ($result,$cached)=&is_cached_new($name,$cdom);
if (defined($cached)) {
if (ref($result) eq 'HASH') {
%lti = %{$result};
}
} else {
my %domconfig = &get_dom('configuration',[$name],$cdom);
if (ref($domconfig{$name}) eq 'HASH') {
%lti = %{$domconfig{$name}};
my %encdomconfig = &get_dom('encconfig',[$name],$cdom);
if (ref($encdomconfig{$name}) eq 'HASH') {
foreach my $id (keys(%lti)) {
if (ref($encdomconfig{$name}{$id}) eq 'HASH') {
foreach my $item ('key','secret') {
$lti{$id}{$item} = $encdomconfig{$name}{$id}{$item};
}
}
}
}
}
my $cachetime = 246060;
&do_cache_new($name,$cdom,\%lti,$cachetime);
}
return %lti;
}

sub get_numsuppfiles {	sub get_numsuppfiles {
my ($cnum,$cdom,$ignorecache)=@_;	my ($cnum,$cdom,$ignorecache)=@_;
my $hashid=$cnum.':'.$cdom;	my $hashid=$cnum.':'.$cdom;
Line 11543 sub get_numsuppfiles {	Line 9677 sub get_numsuppfiles {
unless ($chome eq 'no_host') {	unless ($chome eq 'no_host') {
($suppcount,my $errors) = (0,0);	($suppcount,my $errors) = (0,0);
my $suppmap = 'supplemental.sequence';	my $suppmap = 'supplemental.sequence';
($suppcount,$errors) =	($suppcount,$errors) =
&Apache::loncommon::recurse_supplemental($cnum,$cdom,$suppmap,$suppcount,$errors);	&Apache::loncommon::recurse_supplemental($cnum,$cdom,$suppmap,$suppcount,$errors);
}	}
&do_cache_new('suppcount',$hashid,$suppcount,600);	&do_cache_new('suppcount',$hashid,$suppcount,600);
Line 11738 sub EXT {	Line 9872 sub EXT {
$courseid = $cid;	$courseid = $cid;
}	}
if (($symbparm && $courseid) &&	if (($symbparm && $courseid) &&
(($courseid eq $env{'request.course.id'}) \|\| ($courseid eq $cid))) {	(($courseid eq $env{'request.course.id'}) \|\| ($courseid eq $cid))) {

#print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;	#print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;

Line 11979 sub add_prefix_and_part {	Line 10113 sub add_prefix_and_part {

my %metaentry;	my %metaentry;
my %importedpartids;	my %importedpartids;
my %importedrespids;
sub metadata {	sub metadata {
my ($uri,$what,$liburi,$prefix,$depthcount)=@_;	my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
$uri=&declutter($uri);	$uri=&declutter($uri);
# if it is a non metadata possible uri return quickly	# if it is a non metadata possible uri return quickly
if (($uri eq '') \|\|	if (($uri eq '') \|\|
(($uri =~ m\|^/*adm/\|) &&	(($uri =~ m\|^/*adm/\|) &&
($uri !~ m\|^adm/includes\|) && ($uri !~ m{/(smppg\|bulletinboard\|ext\.tool)$})) \|\|	($uri !~ m\|^adm/includes\|) && ($uri !~ m{/(smppg\|bulletinboard)$})) \|\|
($uri =~ m\|/$\|) \|\| ($uri =~ m\|/.meta$\|) \|\| ($uri =~ m{^/*uploaded/.+\.sequence$})) {	($uri =~ m\|/$\|) \|\| ($uri =~ m\|/.meta$\|) \|\| ($uri =~ m{^/*uploaded/.+\.sequence$})) {
return undef;	return undef;
}	}
if (($uri =~ /^priv/ \|\| $uri=~m{^home/httpd/html/priv})	if (($uri =~ /^priv/ \|\| $uri=~/home\/httpd\/html\/priv/)
&& &Apache::lonxml::get_state('target') =~ /^(\|meta)$/) {	&& &Apache::lonxml::get_state('target') =~ /^(\|meta)$/) {
return undef;	return undef;
}	}
Line 12007 sub metadata {	Line 10140 sub metadata {
}	}
{	{
# Imported parts would go here	# Imported parts would go here
my @origfiletagids=();	my %importedids=();
	my @origfileimportpartids=();
my $importedparts=0;	my $importedparts=0;

# Imported responseids would go here
my $importedresponses=0;
#	#
# Is this a recursive call for a library?	# Is this a recursive call for a library?
#	#
Line 12106 sub metadata {	Line 10237 sub metadata {
my $dir=$filename;	my $dir=$filename;
$dir=~s\|[^/]*$\|\|;	$dir=~s\|[^/]*$\|\|;
$location=&filelocation($dir,$location);	$location=&filelocation($dir,$location);

my $importid=$token->[2]->{'id'};
my $importmode=$token->[2]->{'importmode'};	my $importmode=$token->[2]->{'importmode'};
#
# Check metadata for imported file to
# see if it contained response items
#
my %currmetaentry = %metaentry;
my $libresponseorder = &metadata($location,'responseorder');
my $origfile;
if ($libresponseorder ne '') {
if ($#origfiletagids<0) {
undef(%importedrespids);
undef(%importedpartids);
}
@{$importedrespids{$importid}} = split(/\s,\s/,$libresponseorder);
if (@{$importedrespids{$importid}} > 0) {
$importedresponses = 1;
# We need to get the original file and the imported file to get the response order correct
# Load and inspect original file
if ($#origfiletagids<0) {
my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
$origfile=&getfile($origfilelocation);
@origfiletagids=($origfile=~/<((?:\w+)response\|import\|part)[^>]id\s=\s[\"\']([^\"\']+)[\"\'][^>]>/gs);
}
}
}
# Do not overwrite contents of %metaentry hash for resource itself with
# hash populated for imported library file
%metaentry = %currmetaentry;
undef(%currmetaentry);
if ($importmode eq 'problem') {	if ($importmode eq 'problem') {
# Import as problem/response	# Import as problem/response
$unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});	$unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
Line 12145 sub metadata {	Line 10247 sub metadata {
$importedparts=1;	$importedparts=1;
# We need to get the original file and the imported file to get the part order correct	# We need to get the original file and the imported file to get the part order correct
# Good news: we do not need to worry about nested libraries, since parts cannot be nested	# Good news: we do not need to worry about nested libraries, since parts cannot be nested
# Load and inspect original file if we didn't do that already	# Load and inspect original file
if ($#origfiletagids<0) {	if ($#origfileimportpartids<0) {
undef(%importedrespids);	undef(%importedpartids);
undef(%importedpartids);	my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
if ($origfile eq '') {	my $origfile=&getfile($origfilelocation);
my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);	@origfileimportpartids=($origfile=~/<(part\|import)[^>]id\s=\s[\"\']([^\"\']+)[\"\'][^>]>/gs);
$origfile=&getfile($origfilelocation);
@origfiletagids=($origfile=~/<(part\|import)[^>]id\s=\s[\"\']([^\"\']+)[\"\'][^>]>/gs);
}
}	}

# Load and inspect imported file	# Load and inspect imported file
Line 12267 sub metadata {	Line 10366 sub metadata {
grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));	grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
$metaentry{':packages'} = join(',',@uniq_packages);	$metaentry{':packages'} = join(',',@uniq_packages);

if (($importedresponses) \|\| ($importedparts)) {	if ($importedparts) {
if ($importedparts) {
# We had imported parts and need to rebuild partorder	# We had imported parts and need to rebuild partorder
$metaentry{':partorder'}='';	$metaentry{':partorder'}='';
$metathesekeys{'partorder'}=1;	$metathesekeys{'partorder'}=1;
}	for (my $index=0;$index<$#origfileimportpartids;$index+=2) {
if ($importedresponses) {	if ($origfileimportpartids[$index] eq 'part') {
# We had imported responses and need to rebuild responseorder	# original part, part of the problem
$metaentry{':responseorder'}='';	$metaentry{':partorder'}.=','.$origfileimportpartids[$index+1];
$metathesekeys{'responseorder'}=1;	} else {
}	# we have imported parts at this position
for (my $index=0;$index<$#origfiletagids;$index+=2) {	$metaentry{':partorder'}.=','.$importedpartids{$origfileimportpartids[$index+1]};
my $origid = $origfiletagids[$index+1];	}
if ($origfiletagids[$index] eq 'part') {	}
# Original part, part of the problem	$metaentry{':partorder'}=~s/^\,//;
if ($importedparts) {
$metaentry{':partorder'}.=','.$origid;
}
} elsif ($origfiletagids[$index] eq 'import') {
if ($importedparts) {
# We have imported parts at this position
$metaentry{':partorder'}.=','.$importedpartids{$origid};
}
if ($importedresponses) {
# We have imported responses at this position
if (ref($importedrespids{$origid}) eq 'ARRAY') {
$metaentry{':responseorder'}.=','.join(',',map { $origid.'_'.$_ } @{$importedrespids{$origid}});
}
}
} else {
# Original response item, part of the problem
if ($importedresponses) {
$metaentry{':responseorder'}.=','.$origid;
}
}
}
if ($importedparts) {
$metaentry{':partorder'}=~s/^\,//;
}
if ($importedresponses) {
$metaentry{':responseorder'}=~s/^\,//;
}
}	}

$metaentry{':keys'} = join(',',keys(%metathesekeys));	$metaentry{':keys'} = join(',',keys(%metathesekeys));
&metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);	&metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
$metaentry{':allpossiblekeys'}=join(',',keys(%metathesekeys));	$metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
&do_cache_new('meta',$uri,\%metaentry,$cachetime);	&do_cache_new('meta',$uri,\%metaentry,$cachetime);
# this is the end of "was not already recently cached	# this is the end of "was not already recently cached
}	}
Line 12573 sub symbverify {	Line 10644 sub symbverify {

if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',	if (tie(%bighash,'GDBM_File',$env{'request.course.fn'}.'.db',
&GDBM_READER(),0640)) {	&GDBM_READER(),0640)) {
	my $noclutter;
if (($thisurl =~ m{^/adm/wrapper/ext/}) \|\| ($thisurl =~ m{^ext/})) {	if (($thisurl =~ m{^/adm/wrapper/ext/}) \|\| ($thisurl =~ m{^ext/})) {
$thisurl =~ s/\?.+$//;	$thisurl =~ s/\?.+$//;
if ($map =~ m{^uploaded/.+\.page$}) {	if ($map =~ m{^uploaded/.+\.page$}) {
$thisurl =~ s{^(/adm/wrapper\|)/ext/}{http://};	$thisurl =~ s{^(/adm/wrapper\|)/ext/}{http://};
$thisurl =~ s{^\Qhttp://https://\E}{https://};	$thisurl =~ s{^\Qhttp://https://\E}{https://};
	$noclutter = 1;
}	}
}	}
my $ids;	my $ids;
if ($map =~ m{^uploaded/.+\.page$}) {	if ($noclutter) {
$ids=$bighash{'ids_'.&clutter_with_no_wrapper($thisurl)};	$ids=$bighash{'ids_'.$thisurl};
} else {	} else {
$ids=$bighash{'ids_'.&clutter($thisurl)};	$ids=$bighash{'ids_'.&clutter($thisurl)};
}	}
unless ($ids) {	unless ($ids) {
my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl;	my $idkey = 'ids_'.($thisurl =~ m{^/}? '' : '/').$thisurl;
$ids=$bighash{$idkey};	$ids=$bighash{$idkey};
}	}
if ($ids) {	if ($ids) {
Line 12603 sub symbverify {	Line 10676 sub symbverify {
if (ref($encstate)) {	if (ref($encstate)) {
$$encstate = $bighash{'encrypted_'.$id};	$$encstate = $bighash{'encrypted_'.$id};
}	}
if (($env{'request.role.adv'}) \|\|	if (($env{'request.role.adv'}) \|\|
($bighash{'encrypted_'.$id} eq $env{'request.enc'}) \|\|	($bighash{'encrypted_'.$id} eq $env{'request.enc'}) \|\|
($thisurl eq '/adm/navmaps')) {	($thisurl eq '/adm/navmaps')) {
$okay=1;	$okay=1;
last;	last;
}	}
}	}
}	}
}	}
untie(%bighash);	untie(%bighash);
}	}
Line 12682 sub deversion {	Line 10755 sub deversion {
# ------------------------------------------------------ Return symb list entry	# ------------------------------------------------------ Return symb list entry

sub symbread {	sub symbread {
my ($thisfn,$donotrecurse,$ignorecachednull,$checkforblock,$possibles,	my ($thisfn,$donotrecurse)=@_;
$ignoresymbdb,$noenccheck)=@_;	my $cache_str;
my $cache_str='request.symbread.cached.'.$thisfn;	if ($thisfn ne '') {
if (defined($env{$cache_str})) {	$cache_str='request.symbread.cached.'.$thisfn;
unless (ref($possibles) eq 'HASH') {	if ($env{$cache_str} ne '') {
if ($ignorecachednull) {	return $env{$cache_str};
return $env{$cache_str} unless ($env{$cache_str} eq '');
} else {
return $env{$cache_str};
}
}	}
}	} else {
# no filename provided? try from environment	# no filename provided? try from environment
unless ($thisfn) {
if ($env{'request.symb'}) {	if ($env{'request.symb'}) {
return $env{$cache_str}=&symbclean($env{'request.symb'});	return $env{$cache_str}=&symbclean($env{'request.symb'});
}	}
$thisfn=$env{'request.filename'};	$thisfn=$env{'request.filename'};
}	}
if ($thisfn=~m\|^/enc/\|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }	if ($thisfn=~m\|^/enc/\|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
# is that filename actually a symb? Verify, clean, and return	# is that filename actually a symb? Verify, clean, and return
Line 12720 sub symbread {	Line 10788 sub symbread {
if ($targetfn =~ m\|^adm/wrapper/(ext/.*)\|) {	if ($targetfn =~ m\|^adm/wrapper/(ext/.*)\|) {
$targetfn=$1;	$targetfn=$1;
}	}
unless ($ignoresymbdb) {	if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',
if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'_symb.db',	&GDBM_READER(),0640)) {
&GDBM_READER(),0640)) {	$syval=$hash{$targetfn};
$syval=$hash{$targetfn};	untie(%hash);
untie(%hash);
}
if ($syval && $checkforblock) {
my @blockers = &has_comm_blocking('bre',$syval,$thisfn,$ignoresymbdb,$noenccheck);
if (@blockers) {
$syval='';
}
}
}	}
# ---------------------------------------------------------- There was an entry	# ---------------------------------------------------------- There was an entry
if ($syval) {	if ($syval) {
Line 12763 sub symbread {	Line 10823 sub symbread {
my ($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);
if (ref($possibles) eq 'HASH') {	} elsif (!$donotrecurse) {
unless ($bighash{'randomout_'.$ids} \|\| $env{'request.role.adv'}) {
$possibles->{$syval} = 1;
}
}
if ($checkforblock) {
unless ($bighash{'randomout_'.$ids} \|\| $env{'request.role.adv'}) {
my @blockers = &has_comm_blocking('bre',$syval,$bighash{'src_'.$ids},'',$noenccheck);
if (@blockers) {
$syval = '';
untie(%bighash);
return $env{$cache_str}='';
}
}
}
} 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};
my $canaccess;	if (&allowed('bre',$file)) {
if (($donotrecurse) \|\| ($checkforblock) \|\| (ref($possibles) eq 'HASH')) {	my ($mapid,$resid)=split(/\./,$id);
$canaccess = 1;	if ($bighash{'map_type_'.$mapid} ne 'page') {
} else {	$realpossible++;
$canaccess = &allowed('bre',$file);	$syval=&encode_symb($bighash{'map_id_'.$mapid},
}	$resid,$thisfn);
if ($canaccess) {	}
my ($mapid,$resid)=split(/\./,$id);
if ($bighash{'map_type_'.$mapid} ne 'page') {
my $poss_syval=&encode_symb($bighash{'map_id_'.$mapid},
$resid,$thisfn);
next if ($bighash{'randomout_'.$id} && !$env{'request.role.adv'});
next unless (($noenccheck) \|\| ($bighash{'encrypted_'.$id} eq $env{'request.enc'}));
if ($checkforblock) {
my @blockers = &has_comm_blocking('bre',$poss_syval,$file,'',$noenccheck);
if (@blockers > 0) {
$syval = '';
} else {
$syval = $poss_syval;
$realpossible++;
}
} else {
$syval = $poss_syval;
$realpossible++;
}
if ($syval) {
if (ref($possibles) eq 'HASH') {
$possibles->{$syval} = 1;
}
}
}
}	}
}	}
if ($realpossible!=1) { $syval=''; }	if ($realpossible!=1) { $syval=''; }
Line 12821 sub symbread {	Line 10842 sub symbread {
$syval='';	$syval='';
}	}
}	}
untie(%bighash);	untie(%bighash)
}	}
}	}
if ($syval) {	if ($syval) {
Line 12974 sub rndseed {	Line 10995 sub rndseed {
$which =&get_rand_alg($courseid);	$which =&get_rand_alg($courseid);
}	}
if (defined(&getCODE())) {	if (defined(&getCODE())) {

if ($which eq '64bit5') {	if ($which eq '64bit5') {
return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);	return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
} elsif ($which eq '64bit4') {	} elsif ($which eq '64bit4') {
Line 13159 sub rndseed_CODE_64bit5 {	Line 11181 sub rndseed_CODE_64bit5 {
sub setup_random_from_rndseed {	sub setup_random_from_rndseed {
my ($rndseed)=@_;	my ($rndseed)=@_;
if ($rndseed =~/([,:])/) {	if ($rndseed =~/([,:])/) {
my ($num1,$num2) = map { abs($_); } (split(/[,:]/,$rndseed));	my ($num1,$num2)=split(/[,:]/,$rndseed);
if ((!$num1) \|\| (!$num2) \|\| ($num1 > 2147483562) \|\| ($num2 > 2147483398)) {	&Math::Random::random_set_seed(abs($num1),abs($num2));
&Math::Random::random_set_seed_from_phrase($rndseed);
} else {
&Math::Random::random_set_seed($num1,$num2);
}
} else {	} else {
&Math::Random::random_set_seed_from_phrase($rndseed);	&Math::Random::random_set_seed_from_phrase($rndseed);
}	}
Line 13350 sub repcopy_userfile {	Line 11368 sub repcopy_userfile {
my $request;	my $request;
$uri=~s/^\///;	$uri=~s/^\///;
my $homeserver = &homeserver($cnum,$cdom);	my $homeserver = &homeserver($cnum,$cdom);
my $hostname = &hostname($homeserver);
my $protocol = $protocol{$homeserver};	my $protocol = $protocol{$homeserver};
$protocol = 'http' if ($protocol ne 'https');	$protocol = 'http' if ($protocol ne 'https');
$request=new HTTP::Request('GET',$protocol.'://'.$hostname.'/raw/'.$uri);	$request=new HTTP::Request('GET',$protocol.'://'.&hostname($homeserver).'/raw/'.$uri);
my $response=$ua->request($request,$transferfile);	my $response=$ua->request($request,$transferfile);
# did it work?	# did it work?
if ($response->is_error()) {	if ($response->is_error()) {
Line 13377 sub tokenwrapper {	Line 11394 sub tokenwrapper {
$file=~s\|(\?\.)$\|\|;	$file=~s\|(\?\.)$\|\|;
&appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}});	&appenv({"userfile.$udom/$uname/$file" => $env{'request.course.id'}});
my $homeserver = &homeserver($uname,$udom);	my $homeserver = &homeserver($uname,$udom);
my $hostname = &hostname($homeserver);
my $protocol = $protocol{$homeserver};	my $protocol = $protocol{$homeserver};
$protocol = 'http' if ($protocol ne 'https');	$protocol = 'http' if ($protocol ne 'https');
return $protocol.'://'.$hostname.'/'.$uri.	return $protocol.'://'.&hostname($homeserver).'/'.$uri.
(($uri=~/\?/)?'&':'?').'token='.$token.	(($uri=~/\?/)?'&':'?').'token='.$token.
'&tokenissued='.$perlvar{'lonHostID'};	'&tokenissued='.$perlvar{'lonHostID'};
} else {	} else {
Line 13396 sub getuploaded {	Line 11412 sub getuploaded {
my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;	my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
$uri=~s/^\///;	$uri=~s/^\///;
my $homeserver = &homeserver($cnum,$cdom);	my $homeserver = &homeserver($cnum,$cdom);
my $hostname = &hostname($homeserver);
my $protocol = $protocol{$homeserver};	my $protocol = $protocol{$homeserver};
$protocol = 'http' if ($protocol ne 'https');	$protocol = 'http' if ($protocol ne 'https');
$uri = $protocol.'://'.$hostname.'/raw/'.$uri;	$uri = $protocol.'://'.&hostname($homeserver).'/raw/'.$uri;
my $ua=new LWP::UserAgent;	my $ua=new LWP::UserAgent;
my $request=new HTTP::Request($reqtype,$uri);	my $request=new HTTP::Request($reqtype,$uri);
my $response=$ua->request($request);	my $response=$ua->request($request);
Line 13419 sub readfile {	Line 11434 sub readfile {
my $file = shift;	my $file = shift;
if ( (! -e $file ) \|\| ($file eq '') ) { return -1; };	if ( (! -e $file ) \|\| ($file eq '') ) { return -1; };
my $fh;	my $fh;
open($fh,"<",$file);	open($fh,"<$file");
my $a='';	my $a='';
while (my $line = <$fh>) { $a .= $line; }	while (my $line = <$fh>) { $a .= $line; }
return $a;	return $a;
Line 13532 sub machine_ids {	Line 11547 sub machine_ids {

sub additional_machine_domains {	sub additional_machine_domains {
my @domains;	my @domains;
open(my $fh,"<","$perlvar{'lonTabDir'}/expected_domains.tab");	open(my $fh,"<$perlvar{'lonTabDir'}/expected_domains.tab");
while( my $line = <$fh>) {	while( my $line = <$fh>) {
$line =~ s/\s//g;	$line =~ s/\s//g;
push(@domains,$line);	push(@domains,$line);
Line 13553 sub default_login_domain {	Line 11568 sub default_login_domain {
return $domain;	return $domain;
}	}

sub shared_institution {
my ($dom,$lonhost) = @_;
if ($lonhost eq '') {
$lonhost = $perlvar{'lonHostID'};
}
my $same_intdom;
my $hostintdom = &internet_dom($lonhost);
if ($hostintdom ne '') {
my %iphost = &get_iphost();
my $primary_id = &domain($dom,'primary');
my $primary_ip = &get_host_ip($primary_id);
if (ref($iphost{$primary_ip}) eq 'ARRAY') {
foreach my $id (@{$iphost{$primary_ip}}) {
my $intdom = &internet_dom($id);
if ($intdom eq $hostintdom) {
$same_intdom = 1;
last;
}
}
}
}
return $same_intdom;
}

sub uses_sts {
my ($ignore_cache) = @_;
my $lonhost = $perlvar{'lonHostID'};
my $hostname = &hostname($lonhost);
my $sts_on;
if ($protocol{$lonhost} eq 'https') {
my $cachetime = 12*3600;
if (!$ignore_cache) {
($sts_on,my $cached)=&is_cached_new('stspolicy',$lonhost);
if (defined($cached)) {
return $sts_on;
}
}
my $ua=new LWP::UserAgent;
my $url = $protocol{$lonhost}.'://'.$hostname.'/index.html';
my $request=new HTTP::Request('HEAD',$url);
my $response=$ua->request($request);
if ($response->is_success) {
my $has_sts = $response->header('Strict-Transport-Security');
if ($has_sts eq '') {
$sts_on = 0;
} else {
if ($has_sts =~ /\Qmax-age=\E(\d+)/) {
my $maxage = $1;
if ($maxage) {
$sts_on = 1;
} else {
$sts_on = 0;
}
} else {
$sts_on = 0;
}
}
return &do_cache_new('stspolicy',$lonhost,$sts_on,$cachetime);
}
}
return;
}

sub get_requestor_ip {
my ($r,$nolookup,$noproxy) = @_;
my $from_ip;
if (ref($r)) {
$from_ip = $r->get_remote_host($nolookup);
} else {
$from_ip = $ENV{'REMOTE_ADDR'};
}
return $from_ip;
}

# ------------------------------------------------------------- Declutters URLs	# ------------------------------------------------------------- Declutters URLs

sub declutter {	sub declutter {
my $thisfn=shift;	my $thisfn=shift;
if ($thisfn=~m\|^/enc/\|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }	if ($thisfn=~m\|^/enc/\|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
unless ($thisfn=~m{^/home/httpd/html/priv/}) {	$thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//;
$thisfn=~s{^/home/httpd/html}{};
}
$thisfn=~s/^\///;	$thisfn=~s/^\///;
$thisfn=~s\|^adm/wrapper/\|\|;	$thisfn=~s\|^adm/wrapper/\|\|;
$thisfn=~s\|^adm/coursedocs/showdoc/\|\|;	$thisfn=~s\|^adm/coursedocs/showdoc/\|\|;
Line 13677 sub clutter {	Line 11616 sub clutter {
# &logthis("Got a blank emb style");	# &logthis("Got a blank emb style");
}	}
}	}
} elsif ($thisfn =~ m{^/adm/$match_domain/$match_courseid/\d+/ext\.tool$}) {
$thisfn='/adm/wrapper'.$thisfn;
}	}
return $thisfn;	return $thisfn;
}	}
Line 13752 sub get_dns {	Line 11689 sub get_dns {
}	}

my %alldns;	my %alldns;
if (open(my $config,"<","$perlvar{'lonTabDir'}/hosts.tab")) {	open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
foreach my $dns (<$config>) {	foreach my $dns (<$config>) {
next if ($dns !~ /^\^(\S*)/x);	next if ($dns !~ /^\^(\S*)/x);
my $line = $1;	my $line = $1;
my ($host,$protocol) = split(/:/,$line);	my ($host,$protocol) = split(/:/,$line);
if ($protocol ne 'https') {	if ($protocol ne 'https') {
$protocol = 'http';	$protocol = 'http';
}
$alldns{$host} = $protocol;
}	}
close($config);	$alldns{$host} = $protocol;
}	}
while (%alldns) {	while (%alldns) {
my ($dns) = sort { $b cmp $a } keys(%alldns);	my ($dns) = keys(%alldns);
my $ua=new LWP::UserAgent;	my $ua=new LWP::UserAgent;
$ua->timeout(30);	$ua->timeout(30);
my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");	my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
Line 13773 sub get_dns {	Line 11708 sub get_dns {
delete($alldns{$dns});	delete($alldns{$dns});
next if ($response->is_error());	next if ($response->is_error());
my @content = split("\n",$response->content);	my @content = split("\n",$response->content);
unless ($nocache) {	unless ($nocache) {
&do_cache_new('dns',$url,\@content,302460*60);	&do_cache_new('dns',$url,\@content,302460*60);
}	}
&$func(\@content,$hashref);	&$func(\@content,$hashref);
return;	return;
}	}
	close($config);
my $which = (split('/',$url))[3];	my $which = (split('/',$url))[3];
&logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");	&logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
if (open(my $config,"<","$perlvar{'lonTabDir'}/dns_$which.tab")) {	open($config,"<$perlvar{'lonTabDir'}/dns_$which.tab");
my @content = <$config>;	my @content = <$config>;
&$func(\@content,$hashref);	&$func(\@content,$hashref);
}
return;	return;
}	}

# ------------------------------------------------------Get DNS checksums file	# ------------------------------------------------------Get DNS checksums file
sub parse_dns_checksums_tab {	sub parse_dns_checksums_tab {
my ($lines,$hashref) = @_;	my ($lines,$hashref) = @_;
my $lonhost = $perlvar{'lonHostID'};	my $machine_dom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
my $machine_dom = &Apache::lonnet::host_domain($lonhost);
my $loncaparev = &get_server_loncaparev($machine_dom);	my $loncaparev = &get_server_loncaparev($machine_dom);
my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0];
my $webconfdir = '/etc/httpd/conf';
if ($distro =~ /^(ubuntu\|debian)(\d+)$/) {
$webconfdir = '/etc/apache2';
} elsif ($distro =~ /^sles(\d+)$/) {
if ($1 >= 10) {
$webconfdir = '/etc/apache2';
}
} elsif ($distro =~ /^suse(\d+\.\d+)$/) {
if ($1 >= 10.0) {
$webconfdir = '/etc/apache2';
}
}
my ($release,$timestamp) = split(/\-/,$loncaparev);	my ($release,$timestamp) = split(/\-/,$loncaparev);
my (%chksum,%revnum);	my (%chksum,%revnum);
if (ref($lines) eq 'ARRAY') {	if (ref($lines) eq 'ARRAY') {
chomp(@{$lines});	chomp(@{$lines});
my $version = shift(@{$lines});	my $version = shift(@{$lines});
if ($version eq $release) {	if ($version eq $release) {
foreach my $line (@{$lines}) {	foreach my $line (@{$lines}) {
my ($file,$version,$shasum) = split(/,/,$line);	my ($file,$version,$shasum) = split(/,/,$line);
if ($file =~ m{^/etc/httpd/conf}) {
if ($webconfdir eq '/etc/apache2') {
$file =~ s{^\Q/etc/httpd/conf/\E}{$webconfdir/};
}
}
$chksum{$file} = $shasum;	$chksum{$file} = $shasum;
$revnum{$file} = $version;	$revnum{$file} = $version;
}	}
Line 13837 sub parse_dns_checksums_tab {	Line 11753 sub parse_dns_checksums_tab {
sub fetch_dns_checksums {	sub fetch_dns_checksums {
my %checksums;	my %checksums;
my $machine_dom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});	my $machine_dom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
my $loncaparev = &get_server_loncaparev($machine_dom,$perlvar{'lonHostID'});	my $loncaparev = &get_server_loncaparev($machine_dom);
my ($release,$timestamp) = split(/\-/,$loncaparev);	my ($release,$timestamp) = split(/\-/,$loncaparev);
&get_dns("/adm/dns/checksums/$release",\&parse_dns_checksums_tab,1,1,	&get_dns("/adm/dns/checksums/$release",\&parse_dns_checksums_tab,1,1,
\%checksums);	\%checksums);
Line 13872 sub fetch_dns_checksums {	Line 11788 sub fetch_dns_checksums {
}	}

sub load_domain_tab {	sub load_domain_tab {
my ($ignore_cache,$nocache) = @_;	my ($ignore_cache) = @_;
&get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache,$nocache);	&get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache);
my $fh;	my $fh;
if (open($fh,"<",$perlvar{'lonTabDir'}.'/domain.tab')) {	if (open($fh,"<".$perlvar{'lonTabDir'}.'/domain.tab')) {
my @lines = <$fh>;	my @lines = <$fh>;
&parse_domain_tab(\@lines);	&parse_domain_tab(\@lines);
}	}
Line 13927 sub fetch_dns_checksums {	Line 11843 sub fetch_dns_checksums {
my ($id,$domain,$role,$name,$protocol,$intdom)=split(/:/,$configline);	my ($id,$domain,$role,$name,$protocol,$intdom)=split(/:/,$configline);
$name=~s/\s//g;	$name=~s/\s//g;
if ($id && $domain && $role && $name) {	if ($id && $domain && $role && $name) {
if ((exists($hostname{$id})) && ($hostname{$id} ne '')) {
my $curr = $hostname{$id};
my $skip;
if (ref($name_to_host{$curr}) eq 'ARRAY') {
if (($curr eq $name) && (@{$name_to_host{$curr}} == 1)) {
$skip = 1;
} else {
@{$name_to_host{$curr}} = grep { $_ ne $id } @{$name_to_host{$curr}};
}
}
unless ($skip) {
push(@{$name_to_host{$name}},$id);
}
} else {
push(@{$name_to_host{$name}},$id);
}
$hostname{$id}=$name;	$hostname{$id}=$name;
	push(@{$name_to_host{$name}}, $id);
$hostdom{$id}=$domain;	$hostdom{$id}=$domain;
if ($role eq 'library') { $libserv{$id}=$name; }	if ($role eq 'library') { $libserv{$id}=$name; }
if (defined($protocol)) {	if (defined($protocol)) {
Line 13974 sub fetch_dns_checksums {	Line 11875 sub fetch_dns_checksums {
}	}

sub load_hosts_tab {	sub load_hosts_tab {
my ($ignore_cache,$nocache) = @_;	my ($ignore_cache) = @_;
&get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache,$nocache);	&get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache);
open(my $config,"<","$perlvar{'lonTabDir'}/hosts.tab");	open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
my @config = <$config>;	my @config = <$config>;
&parse_hosts_tab(\@config);	&parse_hosts_tab(\@config);
close($config);	close($config);
Line 13997 sub fetch_dns_checksums {	Line 11898 sub fetch_dns_checksums {
}	}

sub all_names {	sub all_names {
my ($ignore_cache,$nocache) = @_;	&load_hosts_tab() if (!$loaded);
&load_hosts_tab($ignore_cache,$nocache) if (!$loaded);

return %name_to_host;	return %name_to_host;
}	}
Line 14120 sub fetch_dns_checksums {	Line 12020 sub fetch_dns_checksums {
}	}

sub get_iphost {	sub get_iphost {
my ($ignore_cache,$nocache) = @_;	my ($ignore_cache) = @_;

if (!$ignore_cache) {	if (!$ignore_cache) {
if (%iphost) {	if (%iphost) {
Line 14144 sub fetch_dns_checksums {	Line 12044 sub fetch_dns_checksums {
%old_name_to_ip = %{$ip_info->[1]};	%old_name_to_ip = %{$ip_info->[1]};
}	}

my %name_to_host = &all_names($ignore_cache,$nocache);	my %name_to_host = &all_names();
foreach my $name (keys(%name_to_host)) {	foreach my $name (keys(%name_to_host)) {
my $ip;	my $ip;
if (!exists($name_to_ip{$name})) {	if (!exists($name_to_ip{$name})) {
Line 14169 sub fetch_dns_checksums {	Line 12069 sub fetch_dns_checksums {
}	}
push(@{$iphost{$ip}},@{$name_to_host{$name}});	push(@{$iphost{$ip}},@{$name_to_host{$name}});
}	}
unless ($nocache) {	&do_cache_new('iphost','iphost',
&do_cache_new('iphost','iphost',	[\%iphost,\%name_to_ip,\%lonid_to_ip],
[\%iphost,\%name_to_ip,\%lonid_to_ip],	486060);
486060);
}

return %iphost;	return %iphost;
}	}
Line 14235 sub fetch_dns_checksums {	Line 12133 sub fetch_dns_checksums {
}	}

sub all_loncaparevs {	sub all_loncaparevs {
return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10 2.11);	return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10);
}	}

# ------------------------------------------------------- Read loncaparev table	# ---------------------------------------------------------- Read loncaparev table
{	{
sub load_loncaparevs {	sub load_loncaparevs {
if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {	if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {
if (open(my $config,"<","$perlvar{'lonTabDir'}/loncaparevs.tab")) {	if (open(my $config,"<$perlvar{'lonTabDir'}/loncaparevs.tab")) {
while (my $configline=<$config>) {	while (my $configline=<$config>) {
chomp($configline);	chomp($configline);
my ($hostid,$loncaparev)=split(/:/,$configline);	my ($hostid,$loncaparev)=split(/:/,$configline);
Line 14254 sub all_loncaparevs {	Line 12152 sub all_loncaparevs {
}	}
}	}

# ----------------------------------------------------- Read serverhostID table	# ---------------------------------------------------------- Read serverhostID table
{	{
sub load_serverhomeIDs {	sub load_serverhomeIDs {
if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {	if (-e "$perlvar{'lonTabDir'}/serverhomeIDs.tab") {
if (open(my $config,"<","$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {	if (open(my $config,"<$perlvar{'lonTabDir'}/serverhomeIDs.tab")) {
while (my $configline=<$config>) {	while (my $configline=<$config>) {
chomp($configline);	chomp($configline);
my ($name,$id)=split(/:/,$configline);	my ($name,$id)=split(/:/,$configline);
Line 14283 BEGIN {	Line 12181 BEGIN {

# ------------------------------------------------------ Read spare server file	# ------------------------------------------------------ Read spare server file
{	{
open(my $config,"<","$perlvar{'lonTabDir'}/spare.tab");	open(my $config,"<$perlvar{'lonTabDir'}/spare.tab");

while (my $configline=<$config>) {	while (my $configline=<$config>) {
chomp($configline);	chomp($configline);
Line 14297 BEGIN {	Line 12195 BEGIN {
}	}
# ------------------------------------------------------------ Read permissions	# ------------------------------------------------------------ Read permissions
{	{
open(my $config,"<","$perlvar{'lonTabDir'}/roles.tab");	open(my $config,"<$perlvar{'lonTabDir'}/roles.tab");

while (my $configline=<$config>) {	while (my $configline=<$config>) {
chomp($configline);	chomp($configline);
Line 14311 BEGIN {	Line 12209 BEGIN {

# -------------------------------------------- Read plain texts for permissions	# -------------------------------------------- Read plain texts for permissions
{	{
open(my $config,"<","$perlvar{'lonTabDir'}/rolesplain.tab");	open(my $config,"<$perlvar{'lonTabDir'}/rolesplain.tab");

while (my $configline=<$config>) {	while (my $configline=<$config>) {
chomp($configline);	chomp($configline);
Line 14331 BEGIN {	Line 12229 BEGIN {

# ---------------------------------------------------------- Read package table	# ---------------------------------------------------------- Read package table
{	{
open(my $config,"<","$perlvar{'lonTabDir'}/packages.tab");	open(my $config,"<$perlvar{'lonTabDir'}/packages.tab");

while (my $configline=<$config>) {	while (my $configline=<$config>) {
if ($configline !~ /\S/ \|\| $configline=~/^#/) { next; }	if ($configline !~ /\S/ \|\| $configline=~/^#/) { next; }
Line 14346 BEGIN {	Line 12244 BEGIN {
close($config);	close($config);
}	}

# --------------------------------------------------------- Read loncaparev table	# ---------------------------------------------------------- Read loncaparev table

&load_loncaparevs();	&load_loncaparevs();

# ------------------------------------------------------- Read serverhostID table	# ---------------------------------------------------------- Read serverhostID table

&load_serverhomeIDs();	&load_serverhomeIDs();

Line 14377 BEGIN {	Line 12275 BEGIN {
# ---------------------------------------------------------- Read managers table	# ---------------------------------------------------------- Read managers table
{	{
if (-e "$perlvar{'lonTabDir'}/managers.tab") {	if (-e "$perlvar{'lonTabDir'}/managers.tab") {
if (open(my $config,"<","$perlvar{'lonTabDir'}/managers.tab")) {	if (open(my $config,"<$perlvar{'lonTabDir'}/managers.tab")) {
while (my $configline=<$config>) {	while (my $configline=<$config>) {
chomp($configline);	chomp($configline);
next if ($configline =~ /^\#/);	next if ($configline =~ /^\#/);
Line 14396 BEGIN {	Line 12294 BEGIN {

}	}

# ------------- set default texengine (domain default overrides this)
{
$deftex = LONCAPA::texengine();
}

# ------------- set default minimum length for passwords for internal auth users
{
$passwdmin = LONCAPA::passwd_min();
}

$memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],	$memcache=new Cache::Memcached({'servers' => ['127.0.0.1:11211'],
'compress_threshold'=> 20_000,	'compress_threshold'=> 20_000,
});	});
Line 14423 $readit=1;	Line 12311 $readit=1;
if ($test != 0) { $_64bit=1; } else { $_64bit=0; }	if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
&logthis(" Detected 64bit platform ($_64bit)");	&logthis(" Detected 64bit platform ($_64bit)");
}	}

	{
	eval {
	($apache) =
	(Apache2::ServerUtil::get_server_version() =~ m{Apache/(\d+\.\d+)});
	};
	if ($@) {
	$apache = 1.3;
	}
	}

}	}
}	}

Line 14564 were new keys. I.E. 1:foo will become 1:	Line 12463 were new keys. I.E. 1:foo will become 1:
Calling convention:	Calling convention:

my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname);	my %record=&Apache::lonnet::restore($symb,$courseid,$domain,$uname);
&Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname,$laststore);	&Apache::lonnet::cstore(\%newrecord,$symb,$courseid,$domain,$uname);

For more detailed information, see lonnet specific documentation.	For more detailed information, see lonnet specific documentation.

Line 14700 escaped strings of the action recorded i	Line 12599 escaped strings of the action recorded i

=item *	=item *

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.

The first argument is required, all others are optional.

$priv is the privilege being checked.
$uri contains additional information about what is being checked for access (e.g.,
URL, course ID etc.).
$symb is the unique resource instance identifier in a course; if needed,
but not provided, it will be retrieved via a call to &symbread().
$role is the role for which a priv is being checked (only used if priv is evb).
$clientip is the user's IP address (only used when checking for access to portfolio
files).
$noblockcheck, if true, skips calls to &has_comm_blocking() for the bre priv. This
prevents recursive calls to &allowed.

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.

=item *	=item *

Line 14741 in which case the null string is returne	Line 12624 in which case the null string is returne

=item *	=item *

definerole($rolename,$sysrole,$domrole,$courole,$uname,$udom) : define role;	definerole($rolename,$sysrole,$domrole,$courole) : define role; define a custom
define a custom role rolename set privileges in format of lonTabs/roles.tab	role rolename set privileges in format of lonTabs/roles.tab for system, domain,
for system, domain, and course level. $uname and $udom are optional (current	and course level
user's username and domain will be used when either of $uname or $udom are absent.

=item *	=item *

Line 14775 provided for types, will default to retu	Line 12657 provided for types, will default to retu
=item *	=item *

in_course($udom,$uname,$cdom,$cnum,$type,$hideprivileged) : determine if	in_course($udom,$uname,$cdom,$cnum,$type,$hideprivileged) : determine if
user: $uname:$udom has a role in the course: $cdom_$cnum.	user: $uname:$udom has a role in the course: $cdom_$cnum.

Additional optional arguments are: $type (if role checking is to be restricted	Additional optional arguments are: $type (if role checking is to be restricted
to certain user status types -- previous (expired roles), active (currently	to certain user status types -- previous (expired roles), active (currently
available roles) or future (roles available in the future), and	available roles) or future (roles available in the future), and
$hideprivileged -- if true will not report course roles for users who	$hideprivileged -- if true will not report course roles for users who
Line 14948 Inputs:	Line 12830 Inputs:

=item $credits, number of credits student will earn from this class	=item $credits, number of credits student will earn from this class

=item $instsec, institutional course section code for student

=back	=back


Line 15016 values that are the resource value. I b	Line 12896 values that are the resource value. I b
versions are also returned.	versions are also returned.

get_numsuppfiles($cnum,$cdom) : retrieve number of files in a course's	get_numsuppfiles($cnum,$cdom) : retrieve number of files in a course's
supplemental content area. This routine caches the number of files for	supplemental content area. This routine caches the number of files for
10 minutes.	10 minutes.

=back	=back
Line 15053 Returns:	Line 12933 Returns:

=back	=back

=head2 Bubblesheet Configuration

=over 4

=item *

get_scantron_config($which)

$which - the name of the configuration to parse from the file.

Parses and returns the bubblesheet configuration line selected as a
hash of configuration file fields.


Returns:
If the named configuration is not in the file, an empty
hash is returned.

a hash with the fields
name - internal name for the this configuration setup
description - text to display to operator that describes this config
CODElocation - if 0 or the string 'none'
- no CODE exists for this config
if -1 \|\| the string 'letter'
- a CODE exists for this config and is
a string of letters
Unsupported value (but planned for future support)
if a positive integer
- The CODE exists as the first n items from
the question section of the form
if the string 'number'
- The CODE exists for this config and is
a string of numbers
CODEstart - (only matter if a CODE exists) column in the line where
the CODE starts
CODElength - length of the CODE
IDstart - column where the student/employee ID starts
IDlength - length of the student/employee ID info
Qstart - column where the information from the bubbled
'questions' start
Qlength - number of columns comprising a single bubble line from
the sheet. (usually either 1 or 10)
Qon - either a single character representing the character used
to signal a bubble was chosen in the positional setup, or
the string 'letter' if the letter of the chosen bubble is
in the final, or 'number' if a number representing the
chosen bubble is in the file (1->A 0->J)
Qoff - the character used to represent that a bubble was
left blank
PaperID - if the scanning process generates a unique number for each
sheet scanned the column that this ID number starts in
PaperIDlength - number of columns that comprise the unique ID number
for the sheet of paper
FirstName - column that the first name starts in
FirstNameLength - number of columns that the first name spans
LastName - column that the last name starts in
LastNameLength - number of columns that the last name spans
BubblesPerRow - number of bubbles available in each row used to
bubble an answer. (If not specified, 10 assumed).


=item *

get_scantronformat_file($cdom)

$cdom - the course's domain (optional); if not supplied, uses
domain for current $env{'request.course.id'}.

Returns an array containing lines from the scantron format file for
the domain of the course.

If a url for a custom.tab file is listed in domain's configuration.db,
lines are from this file.

Otherwise, if a default.tab has been published in RES space by the
domainconfig user, lines are from this file.

Otherwise, fall back to getting lines from the legacy file on the
local server: /home/httpd/lonTabs/default_scantronformat.tab

=back

=head2 Resource Subroutines	=head2 Resource Subroutines

=over 4	=over 4
Line 15201 will be stored for query	Line 12999 will be stored for query

=item *	=item *

symbread($filename,$donotrecurse,$ignorecachednull,$checkforblock,$possibles) :	symbread($filename) : return symbolic list entry (filename argument optional);
return symbolic list entry (all arguments optional).

Args: filename is the filename (including path) for the file for which a symb
is required; donotrecurse, if true will prevent calls to allowed() being made
to check access status if more than one resource was found in the bighash
(see rev. 1.249) to avoid an infinite loop if an ambiguous resource is part of
a randompick); ignorecachednull, if true will prevent a symb of '' being
returned if $env{$cache_str} is defined as ''; checkforblock if true will
cause possible symbs to be checked to determine if they are subject to content
blocking, if so they will not be included as possible symbs; possibles is a
ref to a hash, which, as a side effect, will be populated with all possible
symbs (content blocking not tested).

returns the data handle	returns the data handle

=item *	=item *
Line 15224 and is a possible symb for the URL in $t	Line 13009 and is a possible symb for the URL in $t
resource that the user accessed using /enc/ returns a 1 on success, 0	resource that the user accessed using /enc/ returns a 1 on success, 0
on failure, user must be in a course, as it assumes the existence of	on failure, user must be in a course, as it assumes the existence of
the course initial hash, and uses $env('request.course.id'}. The third	the course initial hash, and uses $env('request.course.id'}. The third
arg is an optional reference to a scalar. If this arg is passed in the	arg is an optional reference to a scalar. If this arg is passed in the
call to symbverify, it will be set to 1 if the symb has been set to be	call to symbverify, it will be set to 1 if the symb has been set to be
encrypted; otherwise it will be null.	encrypted; otherwise it will be null.

=item *	=item *

Line 15279 expirespread($uname,$udom,$stype,$usymb)	Line 13064 expirespread($uname,$udom,$stype,$usymb)
devalidate($symb) : devalidate temporary spreadsheet calculations,	devalidate($symb) : devalidate temporary spreadsheet calculations,
forcing spreadsheet to reevaluate the resource scores next time.	forcing spreadsheet to reevaluate the resource scores next time.

=item *	=item *

can_edit_resource($file,$cnum,$cdom,$resurl,$symb,$group) : determine if current user can edit a particular resource,	can_edit_resource($file,$cnum,$cdom,$resurl,$symb,$group) : determine if current user can edit a particular resource,
when viewing in course context.	when viewing in course context.

input: six args -- filename (decluttered), course number, course domain,	input: six args -- filename (decluttered), course number, course domain,
url, symb (if registered) and group (if this is a	url, symb (if registered) and group (if this is a
group item -- e.g., bulletin board, group page etc.).	group item -- e.g., bulletin board, group page etc.).

output: array of five scalars --	output: array of five scalars --
Line 15293 when viewing in course context.	Line 13078 when viewing in course context.
$home -- homeserver of resource (i.e., for author if published,	$home -- homeserver of resource (i.e., for author if published,
or course if uploaded.).	or course if uploaded.).
$switchserver -- 1 if server switch will be needed.	$switchserver -- 1 if server switch will be needed.
$forceedit -- 1 if icon/link should be to go to edit mode	$forceedit -- 1 if icon/link should be to go to edit mode
$forceview -- 1 if icon/link should be to go to view mode	$forceview -- 1 if icon/link should be to go to view mode

=item *	=item *

is_course_upload($file,$cnum,$cdom)	is_course_upload($file,$cnum,$cdom)

Used in course context to determine if current file was uploaded to	Used in course context to determine if current file was uploaded to
the course (i.e., would be found in /userfiles/docs on the course's	the course (i.e., would be found in /userfiles/docs on the course's
homeserver.	homeserver.

input: 3 args -- filename (decluttered), course number and course domain.	input: 3 args -- filename (decluttered), course number and course domain.
Line 15315 homeserver.	Line 13100 homeserver.

=item *	=item *

store($storehash,$symb,$namespace,$udom,$uname,$laststore) : stores hash	store($storehash,$symb,$namespace,$udom,$uname) : stores hash permanently
permanently for this url; hashref needs to be given and should be a \%hashname;	for this url; hashref needs to be given and should be a \%hashname; the
the remaining args aren't required and if they aren't passed or are '' they will	remaining args aren't required and if they aren't passed or are '' they will
be derived from the env (with the exception of $laststore, which is an	be derived from the env
optional arg used when a user's submission is stored in grading).
$laststore is $version=$timestamp, where $version is the most recent version
number retrieved for the corresponding $symb in the $namespace db file, and
$timestamp is the timestamp for that transaction (UNIX time).
$laststore is currently only passed when cstore() is called by
structuretags::finalize_storage().

=item *	=item *

cstore($storehash,$symb,$namespace,$udom,$uname,$laststore) : same as store	cstore($storehash,$symb,$namespace,$udom,$uname) : same as store but
but uses critical subroutine	uses critical subroutine

=item *	=item *

Line 15352 $range should be either an integer '100'	Line 13131 $range should be either an integer '100'

=item *	=item *

putstore($namespace,$symb,$version,$storehash,$udomain,$uname,$tolog) :	putstore($namespace,$symb,$version,$storehash,$udomain,$uname) :
replaces a &store() version of data with a replacement set of data	replaces a &store() version of data with a replacement set of data
for a particular resource in a namespace passed in the $storehash hash	for a particular resource in a namespace passed in the $storehash hash
reference. If $tolog is true, the transaction is logged in the courselog	reference
with an action=PUTSTORE.

=item *	=item *

Line 15466 server ($udom and $uhome are optional)	Line 13244 server ($udom and $uhome are optional)

=item *	=item *

get_domain_defaults($target_domain,$ignore_cache) : returns hash with defaults	get_domain_defaults($target_domain,$ignore_cache) : returns hash with defaults
for: authentication, language, quotas, timezone, date locale, and portal URL in	for: authentication, language, quotas, timezone, date locale, and portal URL in
the target domain.	the target domain.

Line 15500 requestcourses: ability to request cours	Line 13278 requestcourses: ability to request cours
=over	=over

=item	=item
official, unofficial, community, textbook	official, unofficial, community

=back	=back

Line 15510 inststatus: types of institutional affil	Line 13288 inststatus: types of institutional affil
=over	=over

=item	=item
inststatustypes, inststatusorder, inststatusguest	inststatustypes, inststatusorder

=back	=back

Line 15521 for course's uploaded content.	Line 13299 for course's uploaded content.
=over	=over

=item	=item
canuse_pdfforms, officialcredits, unofficialcredits, textbookcredits, officialquota, unofficialquota,	canuse_pdfforms, officialcredits, unofficialcredits, officialquota, unofficialquota, communityquota
communityquota, textbookquota

=back	=back

Line 15532 on your servers.	Line 13309 on your servers.

=over	=over

=item	=item
remotesessions, hostedsessions	remotesessions, hostedsessions

=back	=back
Line 15540 remotesessions, hostedsessions	Line 13317 remotesessions, hostedsessions
=back	=back

In cases where a domain coordinator has never used the "Set Domain Configuration"	In cases where a domain coordinator has never used the "Set Domain Configuration"
utility to create a configuration.db file on a domain's primary library server	utility to create a configuration.db file on a domain's primary library server
only the following domain defaults: auth_def, auth_arg_def, lang_def	only the following domain defaults: auth_def, auth_arg_def, lang_def
-- corresponding values are authentication type (internal, krb4, krb5,	-- corresponding values are authentication type (internal, krb4, krb5,
or localauth), initial password or a kerberos realm, language (e.g., en-us) --	or localauth), initial password or a kerberos realm, language (e.g., en-us) --
will be available. Values are retrieved from cache (if current), unless the	will be available. Values are retrieved from cache (if current), unless the
optional $ignore_cache arg is true, or from domain's configuration.db (if available),	optional $ignore_cache arg is true, or from domain's configuration.db (if available),
or lastly from values in lonTabs/dns_domain,tab, or lonTabs/domain.tab.	or lastly from values in lonTabs/dns_domain,tab, or lonTabs/domain.tab.
Line 15775 filelocation except for hrefs	Line 13552 filelocation except for hrefs

=item *	=item *

declutter() : declutters URLs -- remove beginning slashes, 'res' etc.	declutter() : declutters URLs (remove docroot, beginning slashes, 'res' etc)
also removes beginning /home/httpd/html unless /priv/ follows it.

=back	=back

Line 15826 userspace, probably shouldn't be called	Line 13602 userspace, probably shouldn't be called
formname: same as for userfileupload()	formname: same as for userfileupload()
fname: filename (including subdirectories) for the file	fname: filename (including subdirectories) for the file
parser: if 'parse', will parse (html) file to extract references to objects, links etc.	parser: if 'parse', will parse (html) file to extract references to objects, links etc.
if hashref, and context is scantron, will convert csv format to standard format
allfiles: reference to hash used to store objects found by parser	allfiles: reference to hash used to store objects found by parser
codebase: reference to hash used for codebases of java objects found by parser	codebase: reference to hash used for codebases of java objects found by parser
thumbwidth: width (pixels) of thumbnail to be created for uploaded image	thumbwidth: width (pixels) of thumbnail to be created for uploaded image
Line 15972 Returns:	Line 13747 Returns:

get_timebased_id():	get_timebased_id():

Attempts to get a unique timestamp-based suffix for use with items added to a	Attempts to get a unique timestamp-based suffix for use with items added to a
course via the Course Editor (e.g., folders, composite pages,	course via the Course Editor (e.g., folders, composite pages,
group bulletin boards).	group bulletin boards).

Args: (first three required; six others optional)	Args: (first three required; six others optional)
Line 15984 Args: (first three required; six others	Line 13759 Args: (first three required; six others
2. keyid (alphanumeric): name of temporary locking key in hash,	2. keyid (alphanumeric): name of temporary locking key in hash,
e.g., num, boardids	e.g., num, boardids

3. namespace: name of gdbm file used to store suffixes already assigned;	3. namespace: name of gdbm file used to store suffixes already assigned;
file will be named nohist_namespace.db	file will be named nohist_namespace.db

4. cdom: domain of course; default is current course domain from %env	4. cdom: domain of course; default is current course domain from %env

5. cnum: course number; default is current course number from %env	5. cnum: course number; default is current course number from %env

6. idtype: set to concat if an additional digit is to be appended to the	6. idtype: set to concat if an additional digit is to be appended to the
unix timestamp to form the suffix, if the plain timestamp is already	unix timestamp to form the suffix, if the plain timestamp is already
in use. Default is to not do this, but simply increment the unix	in use. Default is to not do this, but simply increment the unix
timestamp by 1 until a unique key is obtained.	timestamp by 1 until a unique key is obtained.

7. who: holder of locking key; defaults to user:domain for user.	7. who: holder of locking key; defaults to user:domain for user.

8. locktries: number of attempts to obtain a lock (sleep of 1s before	8. locktries: number of attempts to obtain a lock (sleep of 1s before
retrying); default is 3.	retrying); default is 3.

9. maxtries: number of attempts to obtain a unique suffix; default is 20.	9. maxtries: number of attempts to obtain a unique suffix; default is 20.

Returns:	Returns:

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>

Removed from v.1.1172.2.118.2.21
changed lines
	Added in v.1.1243