loncom/lonnet/perl/lonnet.pm - diff

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Diff for /loncom/lonnet/perl/lonnet.pm between versions 1.1172.2.145 and 1.1324

version 1.1172.2.145, 2022/01/03 01:51:09	version 1.1324, 2016/09/21 05:15:40
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
$_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 95 use Cache::Memcached;	Line 97 use Cache::Memcached;
use Digest::MD5;	use Digest::MD5;
use Math::Random;	use Math::Random;
use File::MMagic;	use File::MMagic;
use Net::CIDR;
use Sys::Hostname::FQDN();
use LONCAPA qw(:DEFAULT :match);	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;

Line 113 require Exporter;	Line 112 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 127 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 159 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 172 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 230 sub get_server_distarch {	Line 229 sub get_server_distarch {
return;	return;
}	}

	sub get_servercerts_info {
	my ($lonhost,$context) = @_;
	my ($rep,$uselocal);
	if (grep { $_ eq $lonhost } &current_machine_ids()) {
	$uselocal = 1;
	}
	if (($context ne 'cgi') && ($uselocal)) {
	my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0];
	if ($distro eq '') {
	$uselocal = 0;
	} elsif ($distro =~ /^(?:centos\|redhat\|scientific)(\d+)$/) {
	if ($1 < 6) {
	$uselocal = 0;
	}
	}
	}
	if ($uselocal) {
	$rep = LONCAPA::Lond::server_certs(\%perlvar);
	} else {
	$rep=&reply('servercerts',$lonhost);
	}
	my ($result,%returnhash);
	if (defined($lonhost)) {
	if (!defined(&hostname($lonhost))) {
	return;
	}
	}
	if (($rep=~/^(refused\|rejected\|error)/) \|\| ($rep eq 'con_lost') \|\|
	($rep eq 'unknown_cmd')) {
	$result = $rep;
	} else {
	$result = 'ok';
	my @pairs=split(/\&/,$rep);
	foreach my $item (@pairs) {
	my ($key,$value)=split(/=/,$item,2);
	my $what = &unescape($key);
	$returnhash{$what}=&thaw_unescape($value);
	}
	}
	return ($result,\%returnhash);
	}

sub get_server_loncaparev {	sub get_server_loncaparev {
my ($dom,$lonhost,$ignore_cache,$caller) = @_;	my ($dom,$lonhost,$ignore_cache,$caller) = @_;
if (defined($lonhost)) {	if (defined($lonhost)) {
Line 266 sub get_server_loncaparev {	Line 307 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 362 sub remote_devalidate_cache {	Line 402 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 394 sub subreply {	Line 435 sub subreply {
} else {	} else {
&create_connection(&hostname($server),$server);	&create_connection(&hostname($server),$server);
}	}
sleep(0.1); # Try again later if failed connection.	sleep(0.1); # Try again later if failed connection.
}	}
my $answer;	my $answer;
if ($client) {	if ($client) {
Line 413 sub reply {	Line 454 sub reply {
unless (defined(&hostname($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 460 sub reconlonc {	Line 483 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) {
&logthis("lonc at pid $loncpid responding, sending USR1");	&logthis("lonc at pid $loncpid responding, sending USR1");
kill USR1 => $loncpid;	kill USR1 => $loncpid;
sleep 1;	sleep 1;
} else {	} else {
&logthis(	&logthis(
"<font color=\"blue\">WARNING:".	"<font color=\"blue\">WARNING:".
" lonc at pid $loncpid not responding, giving up</font>");	" lonc at pid $loncpid not responding, giving up</font>");
Line 500 sub critical {	Line 523 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);
}	}
Line 509 sub critical {	Line 532 sub critical {
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 625 sub transfer_profile_to_env {	Line 648 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,$userhashref) = @_;
my %cookies=CGI::Cookie->parse($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 684 sub check_for_valid_session {	Line 677 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 (ref($userhashref) eq 'HASH') {	if (ref($userhashref) eq 'HASH') {
$userhashref->{'name'} = $disk_env{'user.name'};	$userhashref->{'name'} = $disk_env{'user.name'};
$userhashref->{'domain'} = $disk_env{'user.domain'};	$userhashref->{'domain'} = $disk_env{'user.domain'};
if ($disk_env{'request.role'}) {
$userhashref->{'role'} = $disk_env{'request.role'};
}
}	}
untie(%disk_env);

return $handle;	return $handle;
}	}
Line 720 sub timed_flock {	Line 708 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 776 sub appenv {	Line 733 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} = $value;	untie(%disk_env);
}
untie(%disk_env);
}
}	}
}	}
return 'ok';	return 'ok';
Line 904 sub userload {	Line 858 sub userload {
while ($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 922 sub userload {	Line 875 sub userload {
# ------------------------------ Find server with least workload from spare.tab	# ------------------------------ Find server with least workload from spare.tab

sub spareserver {	sub spareserver {
my ($r,$loadpercent,$userloadpercent,$want_server_name,$udom) = @_;	my ($loadpercent,$userloadpercent,$want_server_name,$udom) = @_;
my $spare_server;	my $spare_server;
if ($userloadpercent !~ /\d/) { $userloadpercent=0; }	if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent	my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
Line 960 sub spareserver {	Line 913 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};
}
my $alias = &Apache::lonnet::use_proxy_alias($r,$spare_server);
$hostname = $alias if ($alias ne '');
$spare_server = $protocol.'://'.$hostname;	$spare_server = $protocol.'://'.$hostname;
}	}
}	}
Line 1035 sub find_existing_session {	Line 986 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 1150 sub choose_server {	Line 1017 sub choose_server {
}	}
}	}
foreach my $lonhost (keys(%servers)) {	foreach my $lonhost (keys(%servers)) {
my $loginvia;
if ($skiploadbal) {	if ($skiploadbal) {
if (ref($balancers) eq 'HASH') {	if (ref($balancers) eq 'HASH') {
next if (exists($balancers->{$lonhost}));	next if (exists($balancers->{$lonhost}));
}	}
}	}
	my $loginvia;
if ($checkloginvia) {	if ($checkloginvia) {
$loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};	$loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost};
if ($loginvia) {	if ($loginvia) {
Line 1182 sub choose_server {	Line 1049 sub choose_server {
if ($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 1242 sub changepass {	Line 1087 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 1383 sub spare_can_host {	Line 1225 sub spare_can_host {
$canhost = 0;	$canhost = 0;
}	}
}	}
if ($canhost) {
if (ref($defdomdefaults{'offloadoth'}) eq 'HASH') {
if ($defdomdefaults{'offloadoth'}{$try_server}) {
unless (&shared_institution($udom,$try_server)) {
$canhost = 0;
}
}
}
}
if (($canhost) && ($uint_dom)) {	if (($canhost) && ($uint_dom)) {
my @intdoms;	my @intdoms;
my $internet_names = &get_internet_names($try_server);	my $internet_names = &get_internet_names($try_server);
Line 1488 sub get_lonbalancer_config {	Line 1321 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 $domneedscache;
my $cachetime = 606024;	my $cachetime = 606024;

if (($uintdom ne '') && ($uintdom eq $intdom)) {	if (($uintdom ne '') && ($uintdom eq $intdom)) {
Line 1517 sub check_loadbalancing {	Line 1350 sub check_loadbalancing {
}	}
}	}
if (ref($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 1578 sub check_loadbalancing {	Line 1411 sub check_loadbalancing {
}	}
}	}
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($currrules) eq 'HASH') {
Line 1610 sub check_loadbalancing {	Line 1443 sub check_loadbalancing {
if ($domneedscache) {	if ($domneedscache) {
&do_cache_new('loadbalancing',$domneedscache,$is_balancer,$cachetime);	&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($offloadto->{'primary'}) eq 'ARRAY') {
Line 1639 sub check_loadbalancing {	Line 1472 sub check_loadbalancing {
}	}
}	}
}	}
unless ($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 1675 sub check_balancer_result {	Line 1504 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 1778 sub homeserver {	Line 1606 sub homeserver {
return 'no_host';	return 'no_host';
}	}

# ------------------------------------- Find the usernames behind a list of IDs	# ----- Find the usernames behind a list of student/employee IDs or clicker IDs

sub idget {	sub idget {
my ($udom,@ids)=@_;	my ($udom,$idsref,$namespace)=@_;
my %returnhash=();	my %returnhash=();
	my @ids=();
	if (ref($idsref) eq 'ARRAY') {
	@ids = @{$idsref};
	} else {
	return %returnhash;
	}
	if ($namespace eq '') {
	$namespace = 'ids';
	}

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 $idlist=join('&', map { &escape($_); } @ids);
$idlist=~tr/A-Z/a-z/;	if ($namespace eq 'ids') {
my $reply=&reply("idget:$udom:".$idlist,$tryserver);	$idlist=~tr/A-Z/a-z/;
	}
	my $reply;
	if ($namespace eq 'ids') {
	$reply=&reply("idget:$udom:".$idlist,$tryserver);
	} else {
	$reply=&reply("getdom:$udom:$namespace:$idlist",$tryserver);
	}
my @answer=();	my @answer=();
if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {	if (($reply ne 'con_lost') && ($reply!~/^error\:/)) {
@answer=split(/\&/,$reply);	@answer=split(/\&/,$reply);
Line 1797 sub idget {	Line 1641 sub idget {
for ($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[$i]}=&unescape($answer[$i]);
}	}
}	}
}	}
return %returnhash;	return %returnhash;
}	}

Line 1814 sub idrget {	Line 1658 sub idrget {
return %returnhash;	return %returnhash;
}	}

# ------------------------------- Store away a list of names and associated IDs	# Store away a list of names and associated student/employee IDs or clicker IDs

sub idput {	sub idput {
my ($udom,%ids)=@_;	my ($udom,$idsref,$uhom,$namespace)=@_;
my %servers=();	my %servers=();
	my %ids=();
	my %byid = ();
	if (ref($idsref) eq 'HASH') {
	%ids=%{$idsref};
	}
	if ($namespace eq '') {
	$namespace = 'ids';
	}
foreach my $uname (keys(%ids)) {	foreach my $uname (keys(%ids)) {
&cput('environment',{'id'=>$ids{$uname}},$udom,$uname);	&cput('environment',{'id'=>$ids{$uname}},$udom,$uname);
my $uhom=&homeserver($uname,$udom);	if ($uhom eq '') {
	$uhom=&homeserver($uname,$udom);
	}
if ($uhom ne 'no_host') {	if ($uhom ne 'no_host') {
my $id=&escape($ids{$uname});
$id=~tr/A-Z/a-z/;
my $esc_unam=&escape($uname);	my $esc_unam=&escape($uname);
if ($servers{$uhom}) {	if ($namespace eq 'ids') {
$servers{$uhom}.='&'.$id.'='.$esc_unam;	my $id=&escape($ids{$uname});
	$id=~tr/A-Z/a-z/;
	my $esc_unam=&escape($uname);
	$servers{$uhom}.=$id.'='.$esc_unam.'&';
} else {	} else {
$servers{$uhom}=$id.'='.$esc_unam;	my @currids = split(/,/,$ids{$uname});
	foreach my $id (@currids) {
	$byid{$uhom}{$id} .= $uname.',';
	}
	}
	}
	}
	if ($namespace eq 'clickers') {
	foreach my $server (keys(%byid)) {
	if (ref($byid{$server}) eq 'HASH') {
	foreach my $id (keys(%{$byid{$server}})) {
	$byid{$server} =~ s/,$//;
	$servers{$uhom}.=&escape($id).'='.&escape($byid{$server}).'&';
	}
}	}
}	}
}	}
foreach my $server (keys(%servers)) {	foreach my $server (keys(%servers)) {
&critical('idput:'.$udom.':'.$servers{$server},$server);	$servers{$server} =~ s/\&$//;
	if ($namespace eq 'ids') {
	&critical('idput:'.$udom.':'.$servers{$server},$server);
	} else {
	&critical('updateclickers:'.$udom.':add:'.$servers{$server},$server);
	}
}	}
}	}

# ---------------------------------------- Delete unwanted IDs from ids.db file	# ------------- Delete unwanted student/employee IDs or clicker IDs from domain

sub iddel {	sub iddel {
my ($udom,$idshashref,$uhome)=@_;	my ($udom,$idshashref,$uhome,$namespace)=@_;
my %result=();	my %result=();
unless (ref($idshashref) eq 'HASH') {	my %ids=();
	my %byid = ();
	if (ref($idshashref) eq 'HASH') {
	%ids=%{$idshashref};
	} else {
return %result;	return %result;
}	}
	if ($namespace eq '') {
	$namespace = 'ids';
	}
my %servers=();	my %servers=();
while (my ($id,$uname) = each(%{$idshashref})) {	while (my ($id,$unamestr) = each(%ids)) {
my $uhom;	if ($namespace eq 'ids') {
if ($uhome) {	my $uhom = $uhome;
$uhom = $uhome;	if ($uhom eq '') {
} else {	$uhom=&homeserver($unamestr,$udom);
$uhom=&homeserver($uname,$udom);	}
}	if ($uhom ne 'no_host') {
if ($uhom ne 'no_host') {
if ($servers{$uhom}) {
$servers{$uhom}.='&'.&escape($id);	$servers{$uhom}.='&'.&escape($id);
} else {	}
$servers{$uhom}=&escape($id);	} else {
	my @curritems = split(/,/,$ids{$id});
	foreach my $uname (@curritems) {
	my $uhom = $uhome;
	if ($uhom eq '') {
	$uhom=&homeserver($uname,$udom);
	}
	if ($uhom ne 'no_host') {
	$byid{$uhom}{$id} .= $uname.',';
	}
	}
	}
	}
	if ($namespace eq 'clickers') {
	foreach my $server (keys(%byid)) {
	if (ref($byid{$server}) eq 'HASH') {
	foreach my $id (keys(%{$byid{$server}})) {
	$byid{$server}{$id} =~ s/,$//;
	$servers{$server}.=&escape($id).'='.&escape($byid{$server}{$id}).'&';
	}
}	}
}	}
}	}
foreach my $server (keys(%servers)) {	foreach my $server (keys(%servers)) {
$result{$server} = &critical('iddel:'.$udom.':'.$servers{$server},$uhome);	$servers{$server} =~ s/\&$//;
	if ($namespace eq 'ids') {
	$result{$server} = &critical('iddel:'.$udom.':'.$servers{$server},$uhome);
	} elsif ($namespace eq 'clickers') {
	$result{$server} = &critical('updateclickers:'.$udom.':del:'.$servers{$server},$server);
	}
}	}
return %result;	return %result;
}	}

	# ----- Update clicker ID-to-username look-ups in clickers.db on library server

	sub updateclickers {
	my ($udom,$action,$idshashref,$uhome,$critical) = @_;
	my %clickers;
	if (ref($idshashref) eq 'HASH') {
	%clickers=%{$idshashref};
	} else {
	return;
	}
	my $items='';
	foreach my $item (keys(%clickers)) {
	$items.=&escape($item).'='.&escape($clickers{$item}).'&';
	}
	$items=~s/\&$//;
	my $request = "updateclickers:$udom:$action:$items";
	if ($critical) {
	return &critical($request,$uhome);
	} else {
	return &reply($request,$uhome);
	}
	}

# ------------------------------dump from db file owned by domainconfig user	# ------------------------------dump from db file owned by domainconfig user
sub dump_dom {	sub dump_dom {
my ($namespace, $udom, $regexp) = @_;	my ($namespace, $udom, $regexp) = @_;
Line 1905 sub get_dom {	Line 1830 sub get_dom {
}	}
}	}
if ($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
$rep = &LONCAPA::Lond::get_dom("getdom:$udom:$namespace:$items");
} 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 2031 sub retrieve_inst_usertypes {	Line 1950 sub retrieve_inst_usertypes {

sub is_domainimage {	sub is_domainimage {
my ($url) = @_;	my ($url) = @_;
if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img\|logo\|domlogo\|login)/+[^/]-) {	if ($url=~m-^/+res/+($match_domain)/+\1\-domainconfig/+(img\|logo\|domlogo)/+[^/]-) {
if (&domain($1) ne '') {	if (&domain($1) ne '') {
return '1';	return '1';
}	}
Line 2046 sub inst_directory_query {	Line 1965 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 2098 sub usersearch {	Line 2006 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($query).':'.
Line 2196 sub get_multiple_instusers {	Line 2095 sub get_multiple_instusers {
my ($udom,$users,$caller) = @_;	my ($udom,$users,$caller) = @_;
my ($outcome,$results);	my ($outcome,$results);
if (ref($users) eq 'HASH') {	if (ref($users) eq 'HASH') {
my $count = keys(%{$users});	my $count = keys(%{$users});
my $requested = &freeze_escape($users);	my $requested = &freeze_escape($users);
my $homeserver = &domain($udom,'primary');	my $homeserver = &domain($udom,'primary');
if ($homeserver ne '') {	if ($homeserver ne '') {
Line 2240 sub get_multiple_instusers {	Line 2139 sub get_multiple_instusers {
} else {	} else {
($outcome,my $userdata) = split(/=/,$response,2);	($outcome,my $userdata) = split(/=/,$response,2);
if ($outcome eq 'ok') {	if ($outcome eq 'ok') {
$results = &thaw_unescape($userdata);	$results = &thaw_unescape($userdata);
}	}
}	}
}	}
Line 2345 sub get_domain_defaults {	Line 2244 sub get_domain_defaults {
'requestcourses','inststatus',	'requestcourses','inststatus',
'coursedefaults','usersessions',	'coursedefaults','usersessions',
'requestauthor','selfenrollment',	'requestauthor','selfenrollment',
'coursecategories','autoenroll',	'coursecategories','ssl','autoenroll',
'helpsettings'],$domain);	'trust'],$domain);
my @coursetypes = ('official','unofficial','community','textbook');	my @coursetypes = ('official','unofficial','community','textbook','placement');
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 2355 sub get_domain_defaults {	Line 2254 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 2380 sub get_domain_defaults {	Line 2276 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','textbook','placement') {
$domdefaults{$item} = $domconfig{'requestcourses'}{$item};	$domdefaults{$item} = $domconfig{'requestcourses'}{$item};
}	}
}	}
Line 2393 sub get_domain_defaults {	Line 2289 sub get_domain_defaults {
}	}
}	}
if (ref($domconfig{'coursedefaults'}) eq 'HASH') {	if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
	$domdefaults{'canuse_pdfforms'} = $domconfig{'coursedefaults'}{'canuse_pdfforms'};
$domdefaults{'usejsme'} = $domconfig{'coursedefaults'}{'usejsme'};	$domdefaults{'usejsme'} = $domconfig{'coursedefaults'}{'usejsme'};
$domdefaults{'inline_chem'} = $domconfig{'coursedefaults'}{'inline_chem'};
$domdefaults{'uselcmath'} = $domconfig{'coursedefaults'}{'uselcmath'};	$domdefaults{'uselcmath'} = $domconfig{'coursedefaults'}{'uselcmath'};
if (ref($domconfig{'coursedefaults'}{'postsubmit'}) eq 'HASH') {	if (ref($domconfig{'coursedefaults'}{'postsubmit'}) eq 'HASH') {
$domdefaults{'postsubmit'} = $domconfig{'coursedefaults'}{'postsubmit'}{'client'};	$domdefaults{'postsubmit'} = $domconfig{'coursedefaults'}{'postsubmit'}{'client'};
Line 2410 sub get_domain_defaults {	Line 2306 sub get_domain_defaults {
}	}
if ($domdefaults{'postsubmit'} eq 'on') {	if ($domdefaults{'postsubmit'} eq 'on') {
if (ref($domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}) eq 'HASH') {	if (ref($domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}) eq 'HASH') {
$domdefaults{$type.'postsubtimeout'} =	$domdefaults{$type.'postsubtimeout'} =
$domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}{$type};	$domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}{$type};
}	}
}	}
}	}
Line 2425 sub get_domain_defaults {	Line 2321 sub get_domain_defaults {
} elsif ($domconfig{'coursedefaults'}{'canclone'}) {	} elsif ($domconfig{'coursedefaults'}{'canclone'}) {
$domdefaults{'canclone'}=$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($domconfig{'usersessions'}) eq 'HASH') {
if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') {	if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') {
Line 2439 sub get_domain_defaults {	Line 2332 sub get_domain_defaults {
if (ref($domconfig{'usersessions'}{'offloadnow'}) eq 'HASH') {	if (ref($domconfig{'usersessions'}{'offloadnow'}) eq 'HASH') {
$domdefaults{'offloadnow'} = $domconfig{'usersessions'}{'offloadnow'};	$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($domconfig{'selfenrollment'}) eq 'HASH') {
if (ref($domconfig{'selfenrollment'}{'admin'}) eq 'HASH') {	if (ref($domconfig{'selfenrollment'}{'admin'}) eq 'HASH') {
Line 2474 sub get_domain_defaults {	Line 2364 sub get_domain_defaults {
if (ref($domconfig{'coursecategories'}) eq 'HASH') {	if (ref($domconfig{'coursecategories'}) eq 'HASH') {
$domdefaults{'catauth'} = 'std';	$domdefaults{'catauth'} = 'std';
$domdefaults{'catunauth'} = 'std';	$domdefaults{'catunauth'} = 'std';
if ($domconfig{'coursecategories'}{'auth'}) {	if ($domconfig{'coursecategories'}{'auth'}) {
$domdefaults{'catauth'} = $domconfig{'coursecategories'}{'auth'};	$domdefaults{'catauth'} = $domconfig{'coursecategories'}{'auth'};
}	}
if ($domconfig{'coursecategories'}{'unauth'}) {	if ($domconfig{'coursecategories'}{'unauth'}) {
$domdefaults{'catunauth'} = $domconfig{'coursecategories'}{'unauth'};	$domdefaults{'catunauth'} = $domconfig{'coursecategories'}{'unauth'};
}	}
}	}
if (ref($domconfig{'autoenroll'}) eq 'HASH') {	if (ref($domconfig{'ssl'}) eq 'HASH') {
$domdefaults{'autofailsafe'} = $domconfig{'autoenroll'}{'autofailsafe'};	if (ref($domconfig{'ssl'}{'replication'}) eq 'HASH') {
}	$domdefaults{'replication'} = $domconfig{'ssl'}{'replication'};
if (ref($domconfig{'helpsettings'}) eq 'HASH') {	}
$domdefaults{'submitbugs'} = $domconfig{'helpsettings'}{'submitbugs'};	if (ref($domconfig{'ssl'}{'connect'}) eq 'HASH') {
if (ref($domconfig{'helpsettings'}{'adhoc'}) eq 'HASH') {	$domdefaults{'connect'} = $domconfig{'ssl'}{'connect'};
$domdefaults{'adhocroles'} = $domconfig{'helpsettings'}{'adhoc'};
}	}
}	}
if (ref($domconfig{'wafproxy'}) eq 'HASH') {	if (ref($domconfig{'trust'}) eq 'HASH') {
foreach my $item ('ipheader','trusted','vpnint','vpnext','sslopt') {	my @prefixes = qw(content shared enroll othcoau coaurem domroles catalog reqcrs msg);
if ($domconfig{'wafproxy'}{$item}) {	foreach my $prefix (@prefixes) {
$domdefaults{'waf_'.$item} = $domconfig{'wafproxy'}{$item};	if (ref($domconfig{'trust'}{$prefix}) eq 'HASH') {
	$domdefaults{'trust'.$prefix} = $domconfig{'trust'}{$prefix};
}	}
}	}
}	}
	if (ref($domconfig{'autoenroll'}) eq 'HASH') {
	$domdefaults{'autofailsafe'} = $domconfig{'autoenroll'}{'autofailsafe'};
	}
&do_cache_new('domdefaults',$domain,\%domdefaults,$cachetime);	&do_cache_new('domdefaults',$domain,\%domdefaults,$cachetime);
return %domdefaults;	return %domdefaults;
}	}

sub get_dom_cats {	sub course_portal_url {
my ($dom) = @_;	my ($cnum,$cdom) = @_;
return unless (&domain($dom));	my $chome = &homeserver($cnum,$cdom);
my ($cats,$cached)=&is_cached_new('cats',$dom);	my $hostname = &hostname($chome);
unless (defined($cached)) {	my $protocol = $protocol{$chome};
my %domconfig = &get_dom('configuration',['coursecategories'],$dom);	$protocol = 'http' if ($protocol ne 'https');
if (ref($domconfig{'coursecategories'}) eq 'HASH') {	my %domdefaults = &get_domain_defaults($cdom);
if (ref($domconfig{'coursecategories'}{'cats'}) eq 'HASH') {	my $firsturl;
%{$cats} = %{$domconfig{'coursecategories'}{'cats'}};	if ($domdefaults{'portal_def'}) {
} else {	$firsturl = $domdefaults{'portal_def'};
$cats = {};	} else {
}	$firsturl = $protocol.'://'.$hostname;
} 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;	return $firsturl;
}	}

# --------------------------------------------------- Assign a key to a student	# --------------------------------------------------- Assign a key to a student
Line 2828 sub devalidate_cache_new {	Line 2655 sub devalidate_cache_new {

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	my $remembered_id=$name.':'.$id; # this is to avoid make_key (which is slow) whenever possible
# keys in %remembered hash, which persists for
# duration of request (no restriction on key length).
if (exists($remembered{$remembered_id})) {	if (exists($remembered{$remembered_id})) {
if ($debug) { &Apache::lonnet::logthis("Early return $remembered_id of $remembered{$remembered_id} "); }	if ($debug) { &Apache::lonnet::logthis("Early return $remembered_id of $remembered{$remembered_id} "); }
$accessed{$remembered_id}=[&gettimeofday()];	$accessed{$remembered_id}=[&gettimeofday()];
Line 3118 sub repcopy {	Line 2943 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 3167 sub ssi_body {	Line 2971 sub ssi_body {
# --------------------------------------------------------- Server Side Include	# --------------------------------------------------------- Server Side Include

sub absolute_url {	sub absolute_url {
my ($host_name,$unalias,$keep_proto) = @_;	my ($host_name) = @_;
my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');	my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
if ($host_name eq '') {	if ($host_name eq '') {
$host_name = $ENV{'SERVER_NAME'};	$host_name = $ENV{'SERVER_NAME'};
}	}
if ($unalias) {
my $alias = &get_proxy_alias();
if ($alias eq $host_name) {
my $lonhost = $perlvar{'lonHostID'};
my $hostname = &hostname($lonhost);
my $lcproto;
if (($keep_proto) \|\| ($hostname eq '')) {
$lcproto = $protocol;
} else {
$lcproto = $protocol{$lonhost};
$lcproto = 'http' if ($lcproto ne 'https');
$lcproto .= '://';
}
unless ($hostname eq '') {
return $lcproto.$hostname;
}
}
}
return $protocol.$host_name;	return $protocol.$host_name;
}	}

Line 3206 sub absolute_url {	Line 2992 sub absolute_url {
sub ssi {	sub ssi {

my ($fn,%form)=@_;	my ($fn,%form)=@_;
my ($host,$request,$response);	my $ua=new LWP::UserAgent;
$host = &absolute_url('',1);	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) {
$request=new HTTP::Request('POST',$host.$fn);	$request=new HTTP::Request('POST',&absolute_url().$fn);
$request->content(join('&',map {	$request->content(join('&',map {
my $name = escape($_);	my $name = escape($_);
"$name=" . ( ref($form{$_}) eq 'ARRAY'	"$name=" . ( ref($form{$_}) eq 'ARRAY'
? join("&$name=", map {escape($_) } @{$form{$_}})	? join("&$name=", map {escape($_) } @{$form{$_}})
: &escape($form{$_}) );	: &escape($form{$_}) );
} keys(%form)));	} keys(%form)));
} else {	} else {
$request=new HTTP::Request('GET',$host.$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 3267 sub externalssi {	Line 3033 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 3355 sub allowuploaded {	Line 3049 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 3363 sub allowuploaded {	Line 3057 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 3457 sub can_edit_resource {	Line 3151 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 3477 sub can_edit_resource {	Line 3171 sub can_edit_resource {
$forceedit = 1;	$forceedit = 1;
}	}
$cfile = $resurl;	$cfile = $resurl;
} elsif (($resurl =~ m{^/ext/}) && ($symb ne '')) {	} elsif ($resurl =~ m{^/adm/wrapper/adm/$cdom/$cnum/\d+/exttools?$}) {
my ($map,$id,$res) = &decode_symb($symb);	$incourse = 1;
if ($map =~ /\.page$/) {	if ($env{'form.forceedit'}) {
$incourse = 1;	$forceview = 1;
if ($env{'form.forceedit'}) {	} else {
$forceview = 1;	$forceedit = 1;
$cfile = $map;
} else {
$forceedit = 1;
$cfile = '/adm/wrapper'.$resurl;
}
}	}
	$cfile = $resurl;
} elsif ($resurl =~ m{^/?adm/viewclasslist$}) {	} elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
$incourse = 1;	$incourse = 1;
if ($env{'form.forceedit'}) {	if ($env{'form.forceedit'}) {
Line 3500 sub can_edit_resource {	Line 3190 sub can_edit_resource {
}	}
} elsif ($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/)) {
	$incourse = 1;
	if ($env{'form.forceedit'}) {
	$forceview = 1;
	} else {
	$forceedit = 1;
	}
	$cfile = $resurl;
	} elsif (($resurl =~ m{^/adm/wrapper/adm/$cdom/$cnum/\d+/exttools?$}) && ($env{'form.folderpath'} =~ /^supplemental/)) {
$incourse = 1;	$incourse = 1;
if ($env{'form.forceedit'}) {	if ($env{'form.forceedit'}) {
$forceview = 1;	$forceview = 1;
Line 3522 sub can_edit_resource {	Line 3220 sub can_edit_resource {
$cfile = &clutter($res);	$cfile = &clutter($res);
} else {	} else {
$cfile = $env{'form.suppurl'};	$cfile = $env{'form.suppurl'};
$cfile =~ s{^http://}{};	my $escfile = &unescape($cfile);
$cfile = '/adm/wrapper/ext/'.$cfile;	if ($escfile =~ m{^/adm/$cdom/$cnum/\d+/exttools?$}) {
	$cfile = '/adm/wrapper'.$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 3547 sub can_edit_resource {	Line 3250 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$/,@ids)) {
Line 3574 sub in_course {	Line 3277 sub in_course {
if ($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 3679 sub process_coursefile {	Line 3382 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 3737 sub store_edited_file {	Line 3440 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 3762 sub clean_filename {	Line 3465 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 3819 sub resizeImage {	Line 3514 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 3851 sub userfileupload {	Line 3543 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') && ($subdir eq 'batchupload')) \|\|
Line 3872 sub userfileupload {	Line 3556 sub userfileupload {
'_'.$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 = $env{'user.name'};
Line 3907 sub userfileupload {	Line 3591 sub userfileupload {
mkdir($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 3982 sub finishuserfileupload {	Line 3666 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 4026 sub finishuserfileupload {	Line 3710 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 4035 sub finishuserfileupload {	Line 3719 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;	$fetchthumb = 1;
}	}
Line 4103 sub extract_embedded_items {	Line 3783 sub extract_embedded_items {
}	}
if (lc($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 4278 sub embedded_dependency {	Line 3958 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(/,/,$line,-1);
my ($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 4635 sub flushcourselogs {	Line 4075 sub flushcourselogs {
if (! defined($dom) \|\| $dom eq '' \|\|	if (! defined($dom) \|\| $dom eq '' \|\|
! defined($name) \|\| $name eq '') {	! defined($name) \|\| $name eq '') {
my $cid = $env{'request.course.id'};	my $cid = $env{'request.course.id'};
#
# FIXME 11/29/2021
# Typo in rev. 1.458 (2003/12/09)??
# These should likely by $env{'course.'.$cid.'.domain'} and $env{'course.'.$cid.'.num'}
#
# While these ramain as $env{'request.'.$cid.'.domain'} and $env{'request.'.$cid.'.num'}
# $dom and $name will always be null, so the &inc() call will default to storing this data
# in a nohist_accesscount.db file for the user rather than the course.
#
# That said there is a lot of noise in the data being stored.
# So counts for prtspool/ and adm/ etc. are recorded.
#
# A review of which items ending '___count' are written to %accesshash should likely be
# made before deciding whether to set these to 'course.' instead of 'request.'
#
# Under the current scheme each user receives a nohist_accesscount.db file listing
# accesses for things which are not published resources, regardless of course, and
# there is not a nohist_accesscount.db file in a course, which might log accesses from
# anyone in the course for things which are not published resources.
#
# For an author, nohist_accesscount.db ends up having records for other items
# mixed up with the legitimate access counts for the author's published resources.
#
$dom = $env{'request.'.$cid.'.domain'};	$dom = $env{'request.'.$cid.'.domain'};
$name = $env{'request.'.$cid.'.num'};	$name = $env{'request.'.$cid.'.num'};
}	}
Line 4691 sub flushcourselogs {	Line 4108 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 4706 sub flushcourselogs {	Line 4123 sub flushcourselogs {
delete $domainrolehash{$entry};	delete $domainrolehash{$entry};
}	}
foreach my $dom (keys(%domrolebuffer)) {	foreach my $dom (keys(%domrolebuffer)) {
my %servers;	my %servers;
if (defined(&domain($dom,'primary'))) {	if (defined(&domain($dom,'primary'))) {
my $primary=&domain($dom,'primary');	my $primary=&domain($dom,'primary');
my $hostname=&hostname($primary);	my $hostname=&hostname($primary);
$servers{$primary} = $hostname;	$servers{$primary} = $hostname;
} else {	} else {
%servers = &get_servers($dom,'library');	%servers = &get_servers($dom,'library');
}	}
foreach my $tryserver (keys(%servers)) {	foreach my $tryserver (keys(%servers)) {
if (&reply('domroleput:'.$dom.':'.	if (&reply('domroleput:'.$dom.':'.
$domrolebuffer{$dom},$tryserver) eq 'ok') {	$domrolebuffer{$dom},$tryserver) eq 'ok') {
last;	last;
} else {	} else {
&logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);	&logthis('Put of domain roles failed for '.$dom.' and '.$tryserver);
}	}
}	}
Line 4767 sub courseacclog {	Line 4184 sub courseacclog {
if ($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 4842 sub userrolelog {	Line 4255 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 5050 sub get_my_roles {	Line 4463 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 5069 sub get_my_roles {	Line 4482 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 5271 sub postannounce {	Line 4495 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($fh);
Line 5347 sub courseiddump {	Line 4571 sub courseiddump {
if (($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,$hasuniquecode,
$reqcrsdom,&escape($reqinstcode))));	$reqcrsdom,&escape($reqinstcode))));
} else {	} else {
Line 5372 sub courseiddump {	Line 4596 sub courseiddump {
&escape($creationcontext).':'.$domcloner.':'.$hasuniquecode.	&escape($creationcontext).':'.$domcloner.':'.$hasuniquecode.
':'.$reqcrsdom.':'.&escape($reqinstcode),$tryserver);	':'.$reqcrsdom.':'.&escape($reqinstcode),$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 5498 sub get_domain_roles {	Line 4722 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 5527 my %cachedtimes=();	Line 4736 my %cachedtimes=();
my $cachedtime='';	my $cachedtime='';

sub load_all_first_access {	sub load_all_first_access {
my ($uname,$udom)=@_;	my ($uname,$udom,$ignorecache)=@_;
if (($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 5538 sub load_all_first_access {	Line 4748 sub load_all_first_access {
}	}

sub get_first_access {	sub get_first_access {
my ($type,$argsymb,$argmap)=@_;	my ($type,$argsymb,$argmap,$ignorecache)=@_;
my ($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 5550 sub get_first_access {	Line 4760 sub get_first_access {
} else {	} else {
$res=$symb;	$res=$symb;
}	}
&load_all_first_access($uname,$udom);	&load_all_first_access($uname,$udom,$ignorecache);
return $cachedtimes{"$courseid\0$res"};	return $cachedtimes{"$courseid\0$res"};
}	}

Line 5567 sub set_first_access {	Line 4777 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 5585 sub set_first_access {	Line 4790 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;
}	}
Line 5598 sub set_first_access {	Line 4797 sub set_first_access {
}	}
}	}

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 5939 sub tmpreset {	Line 5051 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 $path=LONCAPA::tempdir();
my %hash;	my %hash;
Line 5976 sub tmpstore {	Line 5088 sub tmpstore {
if (!$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 $now=time;
my %hash;	my %hash;
Line 6020 sub tmprestore {	Line 5132 sub tmprestore {
if (!$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;	$namespace=~s/\//\_/g;
Line 6076 sub store {	Line 5188 sub store {
}	}
if (!$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 $namevalue='';
Line 6112 sub cstore {	Line 5224 sub cstore {
}	}
if (!$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 6278 sub privileged {	Line 5390 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 6305 sub privileged {	Line 5417 sub privileged {
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 > $now);
}	}
}	}
Line 6343 sub privileged_by_domain {	Line 5455 sub privileged_by_domain {
my ($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 6464 sub rolesinit {	Line 5576 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 6503 sub custom_roleprivs {	Line 5614 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 6515 sub custom_roleprivs {	Line 5622 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 $access = 1;
Line 6591 sub set_userprivs {	Line 5656 sub set_userprivs {
my ($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 6639 sub set_userprivs {	Line 5703 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 6648 sub set_userprivs {	Line 5711 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 {
Line 6693 sub role_status {	Line 5756 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 6772 sub delete_env_groupprivs {	Line 5834 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 6881 sub unserialize {	Line 5926 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} = &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 6903 sub dump {	Line 5949 sub dump {
} else {	} else {
$regexp='.';	$regexp='.';
}	}
if (grep { $_ eq $uhome } &current_machine_ids()) {	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,	my $reply = LONCAPA::Lond::dump_with_regexp(join(":", ($udomain,
$uname, $namespace, $regexp, $range)), $perlvar{'lonVersion'});	$uname, $namespace, $regexp, $range)), $perlvar{'lonVersion'});
return %{&unserialize($reply, $escapedkeys)};	return %{unserialize($reply, $escapedkeys)};
}	}
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(/\&/,$rep);
Line 6915 sub dump {	Line 5961 sub dump {
if (!($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 6959 sub currentdump {	Line 6006 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 7104 sub putstore {	Line 6151 sub putstore {
foreach my $key (keys(%{$storehash})) {	foreach my $key (keys(%{$storehash})) {
$namevalue.=&escape($key).'='.&freeze_escape($storehash->{$key}).'&';	$namevalue.=&escape($key).'='.&freeze_escape($storehash->{$key}).'&';
}	}
my $ip = &get_requestor_ip();	$namevalue .= 'ip='.&escape($ENV{'REMOTE_ADDR'}).
$namevalue .= 'ip='.&escape($ip).
'&host='.&escape($perlvar{'lonHostID'}).	'&host='.&escape($perlvar{'lonHostID'}).
'&version='.$esc_v.	'&version='.$esc_v.
'&by='.&escape($env{'user.name'}.':'.$env{'user.domain'});	'&by='.&escape($env{'user.name'}.':'.$env{'user.domain'});
Line 7204 sub tmpget {	Line 6250 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($value);
}	}
return %returnhash;	return %returnhash;
Line 7221 sub tmpdel {	Line 6265 sub tmpdel {
return &reply("tmpdel:$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 7241 sub get_timebased_id {	Line 6285 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 7329 sub portfolio_access {	Line 6373 sub portfolio_access {
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' && $env{'user.domain'} eq 'public') {
my ($startblock,$endblock,$triggerblock,$by_ip,$blockdom) =	my ($startblock,$endblock) =
&Apache::loncommon::blockcheck(\%setters,'port',$clientip,$unum,$udom);	&Apache::loncommon::blockcheck(\%setters,'port',$unum,$udom);
if (($startblock && $endblock) \|\| ($by_ip)) {	if ($startblock && $endblock) {
return 'B';	return 'B';
}	}
} else {	} else {
my ($startblock,$endblock,$triggerblock,$by_ip,$blockdo) =	my ($startblock,$endblock) =
&Apache::loncommon::blockcheck(\%setters,'port',$clientip);	&Apache::loncommon::blockcheck(\%setters,'port');
if (($startblock && $endblock) \|\| ($by_ip)) {	if ($startblock && $endblock) {
return 'B';	return 'B';
}	}
}	}
Line 7396 sub get_portfolio_access {	Line 6440 sub get_portfolio_access {
if (ref($access_hash->{$ipkey}{'ip'}) eq 'ARRAY') {	if (ref($access_hash->{$ipkey}{'ip'}) eq 'ARRAY') {
if (&Apache::loncommon::check_ip_acc(join(',',@{$access_hash->{$ipkey}{'ip'}}),$clientip)) {	if (&Apache::loncommon::check_ip_acc(join(',',@{$access_hash->{$ipkey}{'ip'}}),$clientip)) {
$allowed = 1;	$allowed = 1;
last;	last;
}	}
}	}
}	}
Line 7590 sub usertools_access {	Line 6634 sub usertools_access {
unofficial => 1,	unofficial => 1,
community => 1,	community => 1,
textbook => 1,	textbook => 1,
	placement => 1,
);	);
} elsif ($context eq 'requestauthor') {	} elsif ($context eq 'requestauthor') {
%tools = (	%tools = (
Line 7624 sub usertools_access {	Line 6669 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 7886 sub customaccess {	Line 6931 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,$role,$clientip,$noblockcheck)=@_;
my $ver_orguri=$uri;	my $ver_orguri=$uri;
$uri=&deversion($uri);	$uri=&deversion($uri);
my $orguri=$uri;	my $orguri=$uri;
Line 7903 sub allowed {	Line 6948 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)$}))	if (((($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 7914 sub allowed {	Line 6959 sub allowed {
if (($space=~/^(uploaded\|editupload)$/) && ($env{'user.name'} eq $name) &&	if (($space=~/^(uploaded\|editupload)$/) && ($env{'user.name'} eq $name) &&
($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {	($env{'user.domain'} eq $domain) && ('portfolio' eq $dir[0])) {
my %setters;	my %setters;
my ($startblock,$endblock,$triggerblock,$by_ip,$blockdom) =	my ($startblock,$endblock) =
&Apache::loncommon::blockcheck(\%setters,'port',$clientip);	&Apache::loncommon::blockcheck(\%setters,'port');
if (($startblock && $endblock) \|\| ($by_ip)) {	if ($startblock && $endblock) {
return 'B';	return 'B';
} else {	} else {
return 'F';	return 'F';
Line 8009 sub allowed {	Line 7054 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 8022 sub allowed {	Line 7067 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 8068 sub allowed {	Line 7113 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 8111 sub allowed {	Line 7130 sub allowed {
if ($noblockcheck) {	if ($noblockcheck) {
$thisallowed.=$value;	$thisallowed.=$value;
} else {	} else {
my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache);	my @blockers = &has_comm_blocking($priv,$symb,$uri);
if (@blockers > 0) {	if (@blockers > 0) {
$thisallowed = 'B';	$thisallowed = 'B';
} else {	} else {
Line 8131 sub allowed {	Line 7150 sub allowed {
if ($noblockcheck) {	if ($noblockcheck) {
$thisallowed='F';	$thisallowed='F';
} else {	} else {
my @blockers = &has_comm_blocking($priv,'',$refuri,'',1);	my @blockers = &has_comm_blocking($priv,$symb,$refuri);
if (@blockers > 0) {	if (@blockers > 0) {
$thisallowed = 'B';	$thisallowed = 'B';
} else {	} else {
Line 8150 sub allowed {	Line 7169 sub allowed {
&& &is_portfolio_url($uri)) {	&& &is_portfolio_url($uri)) {
$thisallowed = &portfolio_access($uri,$clientip);	$thisallowed = &portfolio_access($uri,$clientip);
}	}

# 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 8178 sub allowed {	Line 7197 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 8204 sub allowed {	Line 7213 sub allowed {
if ($noblockcheck) {	if ($noblockcheck) {
$thisallowed.=$value;	$thisallowed.=$value;
} else {	} else {
my @blockers = &has_comm_blocking($priv,$symb,$uri,$ignorecache);	my @blockers = &has_comm_blocking($priv,$symb,$uri);
if (@blockers > 0) {	if (@blockers > 0) {
$thisallowed = 'B';	$thisallowed = 'B';
} else {	} else {
Line 8217 sub allowed {	Line 7226 sub allowed {
$checkreferer=0;	$checkreferer=0;
}	}
}	}

if ($checkreferer) {	if ($checkreferer) {
my $refuri=$env{'httpref.'.$orguri};	my $refuri=$env{'httpref.'.$orguri};
unless ($refuri) {	unless ($refuri) {
Line 8246 sub allowed {	Line 7255 sub allowed {
if ($noblockcheck) {	if ($noblockcheck) {
$thisallowed.=$value;	$thisallowed.=$value;
} else {	} else {
my @blockers = &has_comm_blocking($priv,'',$refuri,'',1);	my @blockers = &has_comm_blocking($priv,$symb,$refuri);
if (@blockers > 0) {	if (@blockers > 0) {
$thisallowed = 'B';	$thisallowed = 'B';
} else {	} else {
Line 8288 sub allowed {	Line 7297 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;	$expiretime=120;
Line 8352 sub allowed {	Line 7329 sub allowed {
}	}
if (($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 8364 sub allowed {	Line 7341 sub allowed {
}	}
}	}
}	}

#	#
# Rest of the restrictions depend on selected course	# Rest of the restrictions depend on selected course
#	#
Line 8391 sub allowed {	Line 7368 sub allowed {
my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};	my $unamedom=$env{'user.name'}.':'.$env{'user.domain'};
if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}	if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.roles.denied'}
=~/\Q$rolecode\E/) {	=~/\Q$rolecode\E/) {
if (($priv ne 'pch') && ($priv ne 'plc')) {	if (($priv ne 'pch') && ($priv ne 'plc') && ($priv ne 'pac')) {
&logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.	&logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.':'.
'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.	'Denied by role: '.$priv.' for '.$uri.' as '.$rolecode.' in '.
$env{'request.course.id'});	$env{'request.course.id'});
Line 8401 sub allowed {	Line 7378 sub allowed {

if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}	if ($env{'course.'.$env{'request.course.id'}.'.'.$priv.'.users.denied'}
=~/\Q$unamedom\E/) {	=~/\Q$unamedom\E/) {
if (($priv ne 'pch') && ($priv ne 'plc')) {	if (($priv ne 'pch') && ($priv ne 'plc') && ($priv ne 'pac')) {
&logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.	&logthis($env{'user.domain'}.':'.$env{'user.name'}.':'.$env{'user.home'}.
'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.	'Denied by user: '.$priv.' for '.$uri.' as '.$unamedom.' in '.
$env{'request.course.id'});	$env{'request.course.id'});
Line 8459 sub constructaccess {	Line 7436 sub constructaccess {
my ($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$perlvar{'lonDocRoot'}\E\|)(?:/daxepage\|/daxeopen)?/priv/($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 8480 sub constructaccess {	Line 7457 sub constructaccess {
$ownerhome = &homeserver($ownername,$ownerdomain);	$ownerhome = &homeserver($ownername,$ownerdomain);
return ($ownername,$ownerdomain,$ownerhome);	return ($ownername,$ownerdomain,$ownerhome);
}	}
	if ($env{'request.course.id'}) {
	if (($ownername eq $env{'course.'.$env{'request.course.id'}.'.num'}) &&
	($ownerdomain eq $env{'course.'.$env{'request.course.id'}.'.domain'})) {
	if (&allowed('mdc',$env{'request.course.id'})) {
	$ownerhome = $env{'course.'.$env{'request.course.id'}.'.home'};
	return ($ownername,$ownerdomain,$ownerhome);
	}
	}
	}
}	}

# We don't have any access right now. If we are not possibly going to do anything about this,	# We don't have any access right now. If we are not possibly going to do anything about this,
Line 8522 sub constructaccess {	Line 7508 sub constructaccess {
#	#
# User for whom data are being temporarily cached.	# User for whom data are being temporarily cached.
my $cacheduser='';	my $cacheduser='';
# Course for which data are being temporarily cached.	# Cached blockers for this user (a hash of blocking items).
my $cachedcid='';
# Cached blockers for this user (a hash of blocking items).
my %cachedblockers=();	my %cachedblockers=();
# When the data were last cached.	# When the data were last cached.
my $cachedlast='';	my $cachedlast='';

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

sub get_comm_blocks {	sub get_comm_blocks {
Line 8569 sub get_commblock_resources {	Line 7550 sub get_commblock_resources {
my ($blocks) = @_;	my ($blocks) = @_;
my %blockers = ();	my %blockers = ();
return %blockers unless ($env{'request.course.id'});	return %blockers unless ($env{'request.course.id'});
my $courseurl = &courseid_to_courseurl($env{'request.course.id'});	return %blockers if ($env{'user.priv.'.$env{'request.role'}} =~/evb\&([^\:]*)/);
if ($env{'request.course.sec'}) {
$courseurl .= '/'.$env{'request.course.sec'};
}
return %blockers if ($env{'user.priv.'.$env{'request.role'}.'.'.$courseurl} =~/evb\&([^\:]*)/);
my %commblocks;	my %commblocks;
if (ref($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 %blockers unless (keys(%commblocks) > 0);
my $navmap = Apache::lonnavmaps::navmap->new();	my $navmap = Apache::lonnavmaps::navmap->new();
return %blockers unless (ref($navmap));	return %blockers unless (ref($navmap));
my $now = time;	my $now = time;
Line 8592 sub get_commblock_resources {	Line 7569 sub get_commblock_resources {
if (ref($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{$block}{'blocks'}{'docs'}{'maps'}})) {	if (keys(%{$commblocks{$block}{'blocks'}{'docs'}{'maps'}})) {
$blockers{$block}{maps} = $commblocks{$block}{'blocks'}{'docs'}{'maps'};	$blockers{$block}{maps} = $commblocks{$block}{'blocks'}{'docs'}{'maps'};
}	}
}	}
if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {	if (ref($commblocks{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
Line 8605 sub get_commblock_resources {	Line 7582 sub get_commblock_resources {
}	}
} elsif ($block =~ /^firstaccess____(.+)$/) {	} elsif ($block =~ /^firstaccess____(.+)$/) {
my $item = $1;	my $item = $1;
	my @to_test;
if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {	if (ref($commblocks{$block}{'blocks'}) eq 'HASH') {
if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {	if (ref($commblocks{$block}{'blocks'}{'docs'}) eq 'HASH') {
my (@interval,$mapname);	my @interval;
my $type = 'map';	my $type = 'map';
if ($item eq 'course') {	if ($item eq 'course') {
$type = 'course';	$type = 'course';
Line 8616 sub get_commblock_resources {	Line 7594 sub get_commblock_resources {
if ($item =~ /___\d+___/) {	if ($item =~ /___\d+___/) {
$type = 'resource';	$type = 'resource';
@interval=&EXT("resource.0.interval",$item);	@interval=&EXT("resource.0.interval",$item);
	if (ref($navmap)) {
	my $res = $navmap->getBySymb($item);
	push(@to_test,$res);
	}
} else {	} else {
$mapname = &deversion($item);	my $mapsymb = &symbread($item,1);
if (ref($navmap)) {	if ($mapsymb) {
my $timelimit = $navmap->get_mapparam(undef,$mapname,'0.interval');	if (ref($navmap)) {
@interval = ($timelimit,'map');	my $mapres = $navmap->getBySymb($mapsymb);
	@to_test = $mapres->retrieveResources($mapres,undef,0,0,0,1);
	foreach my $res (@to_test) {
	my $symb = $res->symb();
	next if ($symb eq $mapsymb);
	if ($symb ne '') {
	@interval=&EXT("resource.0.interval",$symb);
	if ($interval[1] eq 'map') {
	last;
	}
	}
	}
	}
}	}
}	}
}	}
if ($interval[0] =~ /^\d+$/) {	if ($interval[0] =~ /^(\d+)/) {
	my $timelimit = $1;
my $first_access;	my $first_access;
if ($type eq 'resource') {	if ($type eq 'resource') {
$first_access=&get_first_access($interval[1],$item);	$first_access=&get_first_access($interval[1],$item);
Line 8634 sub get_commblock_resources {	Line 7629 sub get_commblock_resources {
$first_access=&get_first_access($interval[1]);	$first_access=&get_first_access($interval[1]);
}	}
if ($first_access) {	if ($first_access) {
my $timesup = $first_access+$interval[0];	my $timesup = $first_access+$timelimit;
if ($timesup > $now) {	if ($timesup > $now) {
my $activeblock;	my $activeblock;
if ($type eq 'resource') {	foreach my $res (@to_test) {
if (ref($navmap)) {	if ($res->answerable()) {
my $res = $navmap->getBySymb($item);	$activeblock = 1;
if ($res->answerable()) {	last;
$activeblock = 1;
}
}
} elsif ($type eq 'map') {
my $mapsymb = &symbread($mapname,1);
if (($mapsymb) && (ref($navmap))) {
my $mapres = $navmap->getBySymb($mapsymb);
if (ref($mapres)) {
my $first = $mapres->map_start();
my $finish = $mapres->map_finish();
my $it = $navmap->getIterator($first,$finish,undef,0,0);
if (ref($it)) {
my $res;
while ($res = $it->next(undef,1)) {
next unless (ref($res));
my $symb = $res->symb();
next if (($symb eq $mapsymb) \|\| ($symb eq ''));
@interval=&EXT("resource.0.interval",$symb);
if ($interval[1] eq 'map') {
if ($res->answerable()) {
$activeblock = 1;
last;
}
}
}
}
}
}	}
}	}
if ($activeblock) {	if ($activeblock) {
Line 8693 sub get_commblock_resources {	Line 7661 sub get_commblock_resources {
}	}

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

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

#	#
# Removes the version from a URI and	# Removes the version from a URI and
Line 8830 sub get_symb_from_alias {	Line 7784 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 8858 sub definerole {	Line 7812 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,$env{'user.home'});
} else {	} else {
return 'refused';	return 'refused';
}	}
Line 8885 sub metadata_query {	Line 7831 sub metadata_query {
my @server_list = (defined($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 9003 sub fetch_enrollment_query {	Line 7949 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 9020 sub fetch_enrollment_query {	Line 7966 sub fetch_enrollment_query {
}	}

sub get_query_reply {	sub get_query_reply {
my ($queryid,$sleep,$loopmax) = @_;	my ($queryid,$sleep,$loopmax) = @_;;
if (($sleep eq '') \|\| ($sleep !~ /^\d+\.?\d*$/)) {	if (($sleep eq '') \|\| ($sleep !~ /^\d+\.?\d*$/)) {
$sleep = 0.2;	$sleep = 0.2;
}	}
Line 9032 sub get_query_reply {	Line 7978 sub get_query_reply {
for (1..$loopmax) {	for (1..$loopmax) {
sleep($sleep);	sleep($sleep);
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 9153 sub auto_validate_instcode {	Line 8099 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 9443 sub auto_validate_class_sec {	Line 8370 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 {	sub auto_crsreq_update {
my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title,	my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title,
$code,$accessstart,$accessend,$inbound) = @_;	$code,$accessstart,$accessend,$inbound) = @_;
Line 9518 sub auto_crsreq_update {	Line 8386 sub auto_crsreq_update {
':'.&escape($action).':'.&escape($ownername).':'.	':'.&escape($action).':'.&escape($ownername).':'.
&escape($ownerdomain).':'.&escape($fullname).':'.	&escape($ownerdomain).':'.&escape($fullname).':'.
&escape($title).':'.&escape($code).':'.	&escape($title).':'.&escape($code).':'.
&escape($accessstart).':'.&escape($accessend).':'.$info,$homeserver);	&escape($accessstart).':'.&escape($accessend).':'.$info,
	$homeserver);
unless ($response =~ /(con_lost\|error\|no_such_host\|refused)/) {	unless ($response =~ /(con_lost\|error\|no_such_host\|refused)/) {
my @items = split(/&/,$response);	my @items = split(/&/,$response);
foreach my $item (@items) {	foreach my $item (@items) {
Line 9778 sub plaintext {	Line 8647 sub plaintext {
my %rolenames = (	my %rolenames = (
Course => 'std',	Course => 'std',
Community => 'alt1',	Community => 'alt1',
	Placement => 'std',
);	);
if ($cid ne '') {	if ($cid ne '') {
if ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '') {	if ($env{'course.'.$cid.'.'.$short.'.plaintext'} ne '') {
Line 9899 sub assignrole {	Line 8769 sub assignrole {
}	}
}	}
} elsif ($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 = '';	$refused = '';
Line 9907 sub assignrole {	Line 8777 sub assignrole {
my %domdefaults = &get_domain_defaults($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;	$checkbystatus = 1;
}	}
Line 9995 sub assignrole {	Line 8865 sub assignrole {
&courserolelog($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,$udom);
Line 10019 sub autoupdate_coowners {	Line 8888 sub autoupdate_coowners {
if ($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 10048 sub autoupdate_coowners {	Line 8905 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 \|\| $delcoowners) {
Line 10110 sub store_coowners {	Line 8969 sub store_coowners {
sub modifyuserauth {	sub modifyuserauth {
my ($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 10217 sub modifyuser {	Line 9060 sub modifyuser {
'current user id "'.$uidhash{$uname}.'".';	'current user id "'.$uidhash{$uname}.'".';
}	}
} else {	} else {
&idput($udom,($uname => $uid));	&idput($udom,{$uname => $uid},$uhome,'ids');
}	}
}	}
# -------------------------------------------------------------- Add names, etc	# -------------------------------------------------------------- Add names, etc
Line 10342 sub modifystudent {	Line 9185 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,$instsec);
return $reply;	return $reply;
}	}
Line 10619 sub generate_coursenum {	Line 9462 sub generate_coursenum {
sub is_course {	sub is_course {
my ($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 10654 sub store_userdata {	Line 9485 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 $namevalue='';
Line 10773 sub save_selected_files {	Line 9604 sub save_selected_files {
my ($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 10787 sub save_selected_files {	Line 9618 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().$filename);
print (OUT undef);	print (OUT undef);
close (OUT);	close (OUT);
return ("ok");	return ("ok");
Line 10797 sub files_in_path {	Line 9628 sub files_in_path {
my ($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 10819 sub files_not_in_path {	Line 9650 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 10836 sub files_not_in_path {	Line 9667 sub files_not_in_path {
return (@return_files);	return (@return_files);
}	}

	#------------------------------Submitted/Handedback Portfolio Files Versioning

	sub portfiles_versioning {
	my ($symb,$domain,$stu_name,$portfiles,$versioned_portfiles) = @_;
	my $portfolio_root = '/userfiles/portfolio';
	return unless ((ref($portfiles) eq 'ARRAY') && (ref($versioned_portfiles) eq 'ARRAY'));
	foreach my $file (@{$portfiles}) {
	&unmark_as_readonly($domain,$stu_name,[$symb,$env{'request.course.id'}],$file);
	my ($directory,$answer_file) =($file =~ /^(.?)([^\/])$/);
	my ($answer_name,$answer_ver,$answer_ext) = &file_name_version_ext($answer_file);
	my $getpropath = 1;
	my ($dir_list,$listerror) = &dirlist($portfolio_root.$directory,$domain,
	$stu_name,$getpropath);
	my $version = &get_next_version($answer_name,$answer_ext,$dir_list);
	my $new_answer =
	&version_selected_portfile($domain,$stu_name,$directory,$answer_file,$version);
	if ($new_answer ne 'problem getting file') {
	push(@{$versioned_portfiles}, $directory.$new_answer);
	&mark_as_readonly($domain,$stu_name,[$directory.$new_answer],
	[$symb,$env{'request.course.id'},'graded']);
	}
	}
	}

	sub get_next_version {
	my ($answer_name, $answer_ext, $dir_list) = @_;
	my $version;
	if (ref($dir_list) eq 'ARRAY') {
	foreach my $row (@{$dir_list}) {
	my ($file) = split(/\&/,$row,2);
	my ($file_name,$file_version,$file_ext) =
	&file_name_version_ext($file);
	if (($file_name eq $answer_name) &&
	($file_ext eq $answer_ext)) {
	# gets here if filename and extension match,
	# regardless of version
	if ($file_version ne '') {
	# a versioned file is found so save it for later
	if ($file_version > $version) {
	$version = $file_version;
	}
	}
	}
	}
	}
	$version ++;
	return($version);
	}

	sub version_selected_portfile {
	my ($domain,$stu_name,$directory,$file_name,$version) = @_;
	my ($answer_name,$answer_ver,$answer_ext) =
	&file_name_version_ext($file_name);
	my $new_answer;
	$env{'form.copy'} =
	&getfile("/uploaded/$domain/$stu_name/portfolio$directory$file_name");
	if($env{'form.copy'} eq '-1') {
	$new_answer = 'problem getting file';
	} else {
	$new_answer = $answer_name.'.'.$version.'.'.$answer_ext;
	my $copy_result =
	&finishuserfileupload($stu_name,$domain,'copy',
	'/portfolio'.$directory.$new_answer);
	}
	undef($env{'form.copy'});
	return ($new_answer);
	}

	sub file_name_version_ext {
	my ($file)=@_;
	my @file_parts = split(/\./, $file);
	my ($name,$version,$ext);
	if (@file_parts > 1) {
	$ext=pop(@file_parts);
	if (@file_parts > 1 && $file_parts[-1] =~ /^\d+$/) {
	$version=pop(@file_parts);
	}
	$name=join('.',@file_parts);
	} else {
	$name=join('.',@file_parts);
	}
	return($name,$version,$ext);
	}

#----------------------------------------------Get portfolio file permissions	#----------------------------------------------Get portfolio file permissions

sub get_portfile_permissions {	sub get_portfile_permissions {
Line 10980 sub modify_access_controls {	Line 9895 sub modify_access_controls {
}	}

sub make_public_indefinitely {	sub make_public_indefinitely {
my ($requrl) = @_;	my (@requrl) = @_;
	return &automated_portfile_access('public',\@requrl);
	}

	sub automated_portfile_access {
	my ($accesstype,$addsref,$delsref,$info) = @_;
	unless (($accesstype eq 'public') \|\| ($accesstype eq 'ip')) {
	return 'invalid';
	}
	my %urls;
	if (ref($addsref) eq 'ARRAY') {
	foreach my $requrl (@{$addsref}) {
	if (&is_portfolio_url($requrl)) {
	unless (exists($urls{$requrl})) {
	$urls{$requrl} = 'add';
	}
	}
	}
	}
	if (ref($delsref) eq 'ARRAY') {
	foreach my $requrl (@{$delsref}) {
	if (&is_portfolio_url($requrl)) {
	unless (exists($urls{$requrl})) {
	$urls{$requrl} = 'delete';
	}
	}
	}
	}
	unless (keys(%urls)) {
	return 'invalid';
	}
	my $ip;
	if ($accesstype eq 'ip') {
	if (ref($info) eq 'HASH') {
	if ($info->{'ip'} ne '') {
	$ip = $info->{'ip'};
	}
	}
	if ($ip eq '') {
	return 'invalid';
	}
	}
	my $errors;
my $now = time;	my $now = time;
my $action = 'activate';	my %current_perms;
my $aclnum = 0;	foreach my $requrl (sort(keys(%urls))) {
if (&is_portfolio_url($requrl)) {	my $action;
	if ($urls{$requrl} eq 'add') {
	$action = 'activate';
	} else {
	$action = 'none';
	}
	my $aclnum = 0;
my (undef,$udom,$unum,$file_name,$group) =	my (undef,$udom,$unum,$file_name,$group) =
&parse_portfolio_url($requrl);	&parse_portfolio_url($requrl);
my $current_perms = &get_portfile_permissions($udom,$unum);	unless (exists($current_perms{$unum.':'.$udom})) {
my %access_controls = &get_access_controls($current_perms,	$current_perms{$unum.':'.$udom} = &get_portfile_permissions($udom,$unum);
	}
	my %access_controls = &get_access_controls($current_perms{$unum.':'.$udom},
$group,$file_name);	$group,$file_name);
foreach my $key (keys(%{$access_controls{$file_name}})) {	foreach my $key (keys(%{$access_controls{$file_name}})) {
my ($num,$scope,$end,$start) =	my ($num,$scope,$end,$start) =
($key =~ /^([^:]+):([a-z]+)_(\d)_?(\d)$/);	($key =~ /^([^:]+):([a-z]+)_(\d)_?(\d)$/);
if ($scope eq 'public') {	if ($scope eq $accesstype) {
if ($start <= $now && $end == 0) {	if (($start <= $now) && ($end == 0)) {
$action = 'none';	if ($accesstype eq 'ip') {
} else {	if (ref($access_controls{$file_name}{$key}) eq 'HASH') {
	if (ref($access_controls{$file_name}{$key}{'ip'}) eq 'ARRAY') {
	if (grep(/^\Q$ip\E$/,@{$access_controls{$file_name}{$key}{'ip'}})) {
	if ($urls{$requrl} eq 'add') {
	$action = 'none';
	last;
	} else {
	$action = 'delete';
	$aclnum = $num;
	last;
	}
	}
	}
	}
	} elsif ($accesstype eq 'public') {
	if ($urls{$requrl} eq 'add') {
	$action = 'none';
	last;
	} else {
	$action = 'delete';
	$aclnum = $num;
	last;
	}
	}
	} elsif ($accesstype eq 'public') {
$action = 'update';	$action = 'update';
$aclnum = $num;	$aclnum = $num;
	last;
}	}
last;
}	}
}	}
if ($action eq 'none') {	if ($action eq 'none') {
return 'ok';	next;
} else {	} else {
my %changes;	my %changes;
my $newend = 0;	my $newend = 0;
my $newstart = $now;	my $newstart = $now;
my $newkey = $aclnum.':public_'.$newend.'_'.$newstart;	my $newkey = $aclnum.':'.$accesstype.'_'.$newend.'_'.$newstart;
$changes{$action}{$newkey} = {	$changes{$action}{$newkey} = {
type => 'public',	type => $accesstype,
time => {	time => {
start => $newstart,	start => $newstart,
end => $newend,	end => $newend,
},	},
};	};
	if ($accesstype eq 'ip') {
	$changes{$action}{$newkey}{'ip'} = [$ip];
	}
my ($outcome,$deloutcome,$new_values,$translation) =	my ($outcome,$deloutcome,$new_values,$translation) =
&modify_access_controls($file_name,\%changes,$udom,$unum);	&modify_access_controls($file_name,\%changes,$udom,$unum);
return $outcome;	unless ($outcome eq 'ok') {
	$errors .= $outcome.' ';
	}
}	}
	}
	if ($errors) {
	$errors =~ s/\s$//;
	return $errors;
} else {	} else {
return 'invalid';	return 'ok';
}	}
}	}

Line 11227 sub dirlist {	Line 10225 sub dirlist {
foreach my $user (sort(keys(%allusers))) {	foreach my $user (sort(keys(%allusers))) {
push(@alluserslist,$user.'&user');	push(@alluserslist,$user.'&user');
}	}

if (!%listerror) {	if (!%listerror) {
# no errors	# no errors
return (\@alluserslist);	return (\@alluserslist);
} elsif (scalar(keys(%servers)) == 1) {	} elsif (scalar(keys(%servers)) == 1) {
# one library server, one error	# one library server, one error
my ($key) = keys(%listerror);	my ($key) = keys(%listerror);
return (\@alluserslist, $listerror{$key});	return (\@alluserslist, $listerror{$key});
} elsif ( grep { $_ eq 'con_lost' } values(%listerror) ) {	} elsif ( grep { $_ eq 'con_lost' } values(%listerror) ) {
Line 11240 sub dirlist {	Line 10239 sub dirlist {
return (\@alluserslist, 'con_lost');	return (\@alluserslist, 'con_lost');
} else {	} else {
# multiple library servers and no con_lost -> data should be	# multiple library servers and no con_lost -> data should be
# complete.	# complete.
return (\@alluserslist);	return (\@alluserslist);
}	}

Line 11316 sub stat_file {	Line 10315 sub stat_file {
return ();	return ();
}	}

	# --------------------------------------------------------- recursedirs
	# Recursive function to traverse either a specific user's Authoring Space
	# or corresponding Published Resource Space, and populate the hash ref:
	# $dirhashref with URLs of all directories, and if $filehashref hash
	# ref arg is provided, the URLs of any files, excluding versioned, .meta,
	# or .rights files in resource space, and .meta, .save, .log, and .bak
	# files in Authoring Space.
	#
	# Inputs:
	#
	# $is_home - true if current server is home server for user's space
	# $context - either: priv, or res respectively for Authoring or Resource Space.
	# $docroot - Document root (i.e., /home/httpd/html
	# $toppath - Top level directory (i.e., /res/$dom/$uname or /priv/$dom/$uname
	# $relpath - Current path (relative to top level).
	# $dirhashref - reference to hash to populate with URLs of directories (Required)
	# $filehashref - reference to hash to populate with URLs of files (Optional)
	#
	# Returns: nothing
	#
	# Side Effects: populates $dirhashref, and $filehashref (if provided).
	#
	# Currently used by interface/londocs.pm to create linked select boxes for
	# directory and filename to import a Course "Author" resource into a course, and
	# also to create linked select boxes for Authoring Space and Directory to choose
	# save location for creation of a new "standard" problem from the Course Editor.
	#

	sub recursedirs {
	my ($is_home,$context,$docroot,$toppath,$relpath,$dirhashref,$filehashref) = @_;
	return unless (ref($dirhashref) eq 'HASH');
	my $currpath = $docroot.$toppath;
	if ($relpath) {
	$currpath .= "/$relpath";
	}
	my $savefile;
	if (ref($filehashref)) {
	$savefile = 1;
	}
	if ($is_home) {
	if (opendir(my $dirh,$currpath)) {
	foreach my $item (sort { lc($a) cmp lc($b) } grep(!/^\.+$/,readdir($dirh))) {
	next if ($item eq '');
	if (-d "$currpath/$item") {
	my $newpath;
	if ($relpath) {
	$newpath = "$relpath/$item";
	} else {
	$newpath = $item;
	}
	$dirhashref->{&Apache::lonlocal::js_escape($newpath)} = 1;
	&recursedirs($is_home,$context,$docroot,$toppath,$newpath,$dirhashref,$filehashref);
	} elsif ($savefile) {
	if ($context eq 'priv') {
	unless ($item =~ /\.(meta\|save\|log\|bak\|DS_Store)$/) {
	$filehashref->{&Apache::lonlocal::js_escape($relpath)}{$item} = 1;
	}
	} else {
	unless (($item =~ /\.meta$/) \|\| ($item =~ /\.\d+\.\w+$/) \|\| ($item =~ /\.rights$/)) {
	$filehashref->{&Apache::lonlocal::js_escape($relpath)}{$item} = 1;
	}
	}
	}
	}
	closedir($dirh);
	}
	} else {
	my ($dirlistref,$listerror) =
	&dirlist($toppath.$relpath);
	my @dir_lines;
	my $dirptr=16384;
	if (ref($dirlistref) eq 'ARRAY') {
	foreach my $dir_line (sort
	{
	my ($afile)=split('&',$a,2);
	my ($bfile)=split('&',$b,2);
	return (lc($afile) cmp lc($bfile));
	} (@{$dirlistref})) {
	my ($item,$dom,undef,$testdir,undef,undef,undef,undef,$size,undef,$mtime,undef,undef,undef,$obs,undef) =
	split(/\&/,$dir_line,16);
	$item =~ s/\s+$//;
	next if (($item =~ /^\.\.?$/) \|\| ($obs));
	if ($dirptr&$testdir) {
	my $newpath;
	if ($relpath) {
	$newpath = "$relpath/$item";
	} else {
	$relpath = '/';
	$newpath = $item;
	}
	$dirhashref->{&Apache::lonlocal::js_escape($newpath)} = 1;
	&recursedirs($is_home,$context,$docroot,$toppath,$newpath,$dirhashref,$filehashref);
	} elsif ($savefile) {
	if ($context eq 'priv') {
	unless ($item =~ /\.(meta\|save\|log\|bak\|DS_Store)$/) {
	$filehashref->{$relpath}{$item} = 1;
	}
	} else {
	unless (($item =~ /\.meta$/) \|\| ($item =~ /\.\d+\.\w+$/)) {
	$filehashref->{$relpath}{$item} = 1;
	}
	}
	}
	}
	}
	}
	return;
	}

# -------------------------------------------------------- Value of a Condition	# -------------------------------------------------------- Value of a Condition

# gets the value of a specific preevaluated condition	# gets the value of a specific preevaluated condition
Line 11479 sub get_userresdata {	Line 10587 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')
	# $mapp - decluttered URL of enclosing map
	# $recursed - Ref to scalar -- set to 1, if nested maps have been recursed.
	# $recurseup - Ref to array of map URLs, starting with map containing
	# $mapp up through hierarchy of nested maps to top level map.
	# $courseid - CourseID (first part of param identifier).
	# $modifier - Middle part of param identifier.
	# $what - Last part of param identifier.
# @which - Array of names of resources desired.	# @which - Array of names of resources desired.
# Returns:	# Returns:
# The value of the first reasource in @which that is found in the	# The value of the first reasource in @which that is found in the
Line 11489 sub get_userresdata {	Line 10604 sub get_userresdata {
# 'user', an undefined reference is returned.	# 'user', an undefined reference is returned.
# If none of the resources are found, an undef is returned	# If none of the resources are found, an undef is returned
sub resdata {	sub resdata {
my ($name,$domain,$type,@which)=@_;	my ($name,$domain,$type,$mapp,$recursed,$recurseup,$courseid,
	$modifier,$what,@which)=@_;
my $result;	my $result;
if ($type eq 'course') {	if ($type eq 'course') {
$result=&get_courseresdata($name,$domain);	$result=&get_courseresdata($name,$domain);
Line 11498 sub resdata {	Line 10614 sub resdata {
}	}
if (!ref($result)) { return $result; }	if (!ref($result)) { return $result; }
foreach my $item (@which) {	foreach my $item (@which) {
if (defined($result->{$item->[0]})) {	if ($item->[1] eq 'course') {
	if ((ref($recurseup) eq 'ARRAY') && (ref($recursed) eq 'SCALAR')) {
	unless ($$recursed) {
	@{$recurseup} = &get_map_hierarchy($mapp,$courseid);
	$$recursed = 1;
	}
	foreach my $item (@${recurseup}) {
	my $norecursechk=$courseid.$modifier.$item.'___(all).'.$what;
	last if (defined($result->{$norecursechk}));
	my $recursechk=$courseid.$modifier.$item.'___(rec).'.$what;
	if (defined($result->{$recursechk})) { return [$result->{$recursechk},'map']; }
	}
	}
	}
	if (defined($result->{$item->[0]})) {
return [$result->{$item->[0]},$item->[1]];	return [$result->{$item->[0]},$item->[1]];
}	}
}	}
return undef;	return undef;
}	}

	sub get_domain_ltitools {
	my ($cdom) = @_;
	my %ltitools;
	my ($result,$cached)=&is_cached_new('ltitools',$cdom);
	if (defined($cached)) {
	if (ref($result) eq 'HASH') {
	%ltitools = %{$result};
	}
	} else {
	my %domconfig = &get_dom('configuration',['ltitools'],$cdom);
	if (ref($domconfig{'ltitools'}) eq 'HASH') {
	%ltitools = %{$domconfig{'ltitools'}};
	}
	my $cachetime = 246060;
	&do_cache_new('ltitools',$cdom,\%ltitools,$cachetime);
	}
	return %ltitools;
	}

sub get_numsuppfiles {	sub get_numsuppfiles {
my ($cnum,$cdom,$ignorecache)=@_;	my ($cnum,$cdom,$ignorecache)=@_;
my $hashid=$cnum.':'.$cdom;	my $hashid=$cnum.':'.$cdom;
Line 11517 sub get_numsuppfiles {	Line 10666 sub get_numsuppfiles {
unless ($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 11529 sub get_numsuppfiles {	Line 10678 sub get_numsuppfiles {
# EXT resource caching routines	# EXT resource caching routines
#	#

	{
	# Cache (5 seconds) of map hierarchy for speedup of navmaps display
	#
	# The course for which we cache
	my $cachedmapkey='';
	# The cached recursive maps for this course
	my %cachedmaps=();
	# When this was last done
	my $cachedmaptime='';

sub clear_EXT_cache_status {	sub clear_EXT_cache_status {
&delenv('cache.EXT.');	&delenv('cache.EXT.');
}	}
Line 11585 sub EXT {	Line 10744 sub EXT {
if ( (defined($Apache::lonhomework::parsing_a_problem)	if ( (defined($Apache::lonhomework::parsing_a_problem)
\|\| defined($Apache::lonhomework::parsing_a_task))	\|\| defined($Apache::lonhomework::parsing_a_task))
&&	&&
($symbparm eq &symbread()) ) {	($symbparm eq &symbread()) ) {
# if we are in the middle of processing the resource the	# if we are in the middle of processing the resource the
# get the value we are planning on committing	# get the value we are planning on committing
if (defined($Apache::lonhomework::results{$qualifierrest})) {	if (defined($Apache::lonhomework::results{$qualifierrest})) {
Line 11706 sub EXT {	Line 10865 sub EXT {
}	}
}	}

my ($section, $group, @groups);	my ($section, $group, @groups, @recurseup, $recursed);
my ($courselevelm,$courselevel);	my ($courselevelm,$courseleveli,$courselevel,$mapp);
if (($courseid eq '') && ($cid)) {	if (($courseid eq '') && ($cid)) {
$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;

# ----------------------------------------------------- Cascading lookup scheme	# ----------------------------------------------------- Cascading lookup scheme
my $symbp=$symbparm;	my $symbp=$symbparm;
my $mapp=&deversion((&decode_symb($symbp))[0]);	$mapp=&deversion((&decode_symb($symbp))[0]);

my $symbparm=$symbp.'.'.$spacequalifierrest;	my $symbparm=$symbp.'.'.$spacequalifierrest;
	my $recurseparm=$mapp.'___(rec).'.$spacequalifierrest;
my $mapparm=$mapp.'___(all).'.$spacequalifierrest;	my $mapparm=$mapp.'___(all).'.$spacequalifierrest;

if (($env{'user.name'} eq $uname) &&	if (($env{'user.name'} eq $uname) &&
($env{'user.domain'} eq $udom)) {	($env{'user.domain'} eq $udom)) {
$section=$env{'request.course.sec'};	$section=$env{'request.course.sec'};
Line 11739 sub EXT {	Line 10897 sub EXT {

my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;	my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;	my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
	my $secleveli=$courseid.'.['.$section.'].'.$recurseparm;
my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;	my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;

$courselevel=$courseid.'.'.$spacequalifierrest;	$courselevel=$courseid.'.'.$spacequalifierrest;
my $courselevelr=$courseid.'.'.$symbparm;	my $courselevelr=$courseid.'.'.$symbparm;
	$courseleveli=$courseid.'.'.$recurseparm;
$courselevelm=$courseid.'.'.$mapparm;	$courselevelm=$courseid.'.'.$mapparm;

# ----------------------------------------------------------- first, check user	# ----------------------------------------------------------- first, check user

my $userreply=&resdata($uname,$udom,'user',	my $userreply=&resdata($uname,$udom,'user',$mapp,\$recursed,
	\@recurseup,$courseid,'.',$spacequalifierrest,
([$courselevelr,'resource'],	([$courselevelr,'resource'],
[$courselevelm,'map' ],	[$courselevelm,'map' ],
	[$courseleveli,'map' ],
[$courselevel, 'course' ]));	[$courselevel, 'course' ]));
if (defined($userreply)) { return &get_reply($userreply); }	if (defined($userreply)) { return &get_reply($userreply); }

Line 11757 sub EXT {	Line 10919 sub EXT {
my $coursereply;	my $coursereply;
if (@groups > 0) {	if (@groups > 0) {
$coursereply = &check_group_parms($courseid,\@groups,$symbparm,	$coursereply = &check_group_parms($courseid,\@groups,$symbparm,
$mapparm,$spacequalifierrest);	$recurseparm,$mapparm,$spacequalifierrest,
if (defined($coursereply)) { return &get_reply($coursereply); }	$mapp,\$recursed,\@recurseup);
	if (defined($coursereply)) { return &get_reply($coursereply); }
}	}

$coursereply=&resdata($env{'course.'.$courseid.'.num'},	$coursereply=&resdata($env{'course.'.$courseid.'.num'},
$env{'course.'.$courseid.'.domain'},	$env{'course.'.$courseid.'.domain'},
'course',	'course',$mapp,\$recursed,\@recurseup,
	$courseid,'.['.$section.'].',$spacequalifierrest,
([$seclevelr, 'resource'],	([$seclevelr, 'resource'],
[$seclevelm, 'map' ],	[$seclevelm, 'map' ],
	[$secleveli, 'map' ],
[$seclevel, 'course' ],	[$seclevel, 'course' ],
[$courselevelr,'resource']));	[$courselevelr,'resource']));
if (defined($coursereply)) { return &get_reply($coursereply); }	if (defined($coursereply)) { return &get_reply($coursereply); }
Line 11782 sub EXT {	Line 10947 sub EXT {
if ($thisparm) { return &get_reply([$thisparm,'resource']); }	if ($thisparm) { return &get_reply([$thisparm,'resource']); }
}	}
# ------------------------------------------ fourth, look in resource metadata	# ------------------------------------------ fourth, look in resource metadata

$spacequalifierrest=~s/\./\_/;	my $what = $spacequalifierrest;
	$what=~s/\./\_/;
my $filename;	my $filename;
if (!$symbparm) { $symbparm=&symbread(); }	if (!$symbparm) { $symbparm=&symbread(); }
if ($symbparm) {	if ($symbparm) {
Line 11791 sub EXT {	Line 10957 sub EXT {
} else {	} else {
$filename=$env{'request.filename'};	$filename=$env{'request.filename'};
}	}
my $metadata=&metadata($filename,$spacequalifierrest);	my $metadata=&metadata($filename,$what);
if (defined($metadata)) { return &get_reply([$metadata,'resource']); }	if (defined($metadata)) { return &get_reply([$metadata,'resource']); }
$metadata=&metadata($filename,'parameter_'.$spacequalifierrest);	$metadata=&metadata($filename,'parameter_'.$what);
if (defined($metadata)) { return &get_reply([$metadata,'resource']); }	if (defined($metadata)) { return &get_reply([$metadata,'resource']); }

# ---------------------------------------------- fourth, look in rest of course	# ----------------------------------------------- fifth, look in rest of course
if ($symbparm && defined($courseid) &&	if ($symbparm && defined($courseid) &&
$courseid eq $env{'request.course.id'}) {	$courseid eq $env{'request.course.id'}) {
my $coursereply=&resdata($env{'course.'.$courseid.'.num'},	my $coursereply=&resdata($env{'course.'.$courseid.'.num'},
$env{'course.'.$courseid.'.domain'},	$env{'course.'.$courseid.'.domain'},
'course',	'course',$mapp,\$recursed,\@recurseup,
	$courseid,'.',$spacequalifierrest,
([$courselevelm,'map' ],	([$courselevelm,'map' ],
	[$courseleveli,'map' ],
[$courselevel, 'course']));	[$courselevel, 'course']));
if (defined($coursereply)) { return &get_reply($coursereply); }	if (defined($coursereply)) { return &get_reply($coursereply); }
}	}
Line 11859 sub get_reply {	Line 11027 sub get_reply {
}	}

sub check_group_parms {	sub check_group_parms {
my ($courseid,$groups,$symbparm,$mapparm,$what) = @_;	my ($courseid,$groups,$symbparm,$recurseparm,$mapparm,$what,$mapp,
my @groupitems = ();	$recursed,$recurseupref) = @_;
my $resultitem;	my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$recurseparm,'map'],
my @levels = ([$symbparm,'resource'],[$mapparm,'map'],[$what,'course']);	[$what,'course']);
	my $coursereply;
foreach my $group (@{$groups}) {	foreach my $group (@{$groups}) {
	my @groupitems = ();
foreach my $level (@levels) {	foreach my $level (@levels) {
my $item = $courseid.'.['.$group.'].'.$level->[0];	my $item = $courseid.'.['.$group.'].'.$level->[0];
push(@groupitems,[$item,$level->[1]]);	push(@groupitems,[$item,$level->[1]]);
}	}
	my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
	$env{'course.'.$courseid.'.domain'},
	'course',$mapp,$recursed,$recurseupref,
	$courseid,'.['.$group.'].',$what,
	@groupitems);
	last if (defined($coursereply));
}	}
my $coursereply = &resdata($env{'course.'.$courseid.'.num'},
$env{'course.'.$courseid.'.domain'},
'course',@groupitems);
return $coursereply;	return $coursereply;
}	}

	sub get_map_hierarchy {
	my ($mapname,$courseid) = @_;
	my @recurseup = ();
	if ($mapname) {
	if (($cachedmapkey eq $courseid) &&
	(abs($cachedmaptime-time)<5)) {
	if (ref($cachedmaps{$mapname}) eq 'ARRAY') {
	return @{$cachedmaps{$mapname}};
	}
	}
	my $navmap = Apache::lonnavmaps::navmap->new();
	if (ref($navmap)) {
	@recurseup = $navmap->recurseup_maps($mapname);
	undef($navmap);
	$cachedmaps{$mapname} = \@recurseup;
	$cachedmaptime=time;
	$cachedmapkey=$courseid;
	}
	}
	return @recurseup;
	}

	}

sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().	sub sort_course_groups { # Sort groups based on defined rankings. Default is sort().
my ($courseid,@groups) = @_;	my ($courseid,@groups) = @_;
@groups = sort(@groups);	@groups = sort(@groups);
Line 11953 sub add_prefix_and_part {	Line 11150 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)$})) \|\|	($uri !~ m\|^adm/includes\|) && ($uri !~ m{/(smppg\|bulletinboard\|exttools?)$})) \|\|
($uri =~ m\|/$\|) \|\| ($uri =~ m\|/.meta$\|) \|\| ($uri =~ m{^/*uploaded/.+\.sequence$})) {	($uri =~ m\|/$\|) \|\| ($uri =~ m\|/.meta$\|) \|\| ($uri =~ m{^/*uploaded/.+\.sequence$})) {
return undef;	return undef;
}	}
Line 11981 sub metadata {	Line 11177 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 12080 sub metadata {	Line 11274 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 12119 sub metadata {	Line 11284 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 12241 sub metadata {	Line 11403 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));
Line 12547 sub symbverify {	Line 11681 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 ($ids) {
Line 12577 sub symbverify {	Line 11713 sub symbverify {
if (ref($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 12656 sub deversion {	Line 11792 sub deversion {
# ------------------------------------------------------ Return symb list entry	# ------------------------------------------------------ Return symb list entry

sub symbread {	sub symbread {
my ($thisfn,$donotrecurse,$ignorecachednull,$checkforblock,$possibles,	my ($thisfn,$donotrecurse,$ignorecachednull,$checkforblock,$possibles)=@_;
$ignoresymbdb,$noenccheck)=@_;
my $cache_str='request.symbread.cached.'.$thisfn;	my $cache_str='request.symbread.cached.'.$thisfn;
if (defined($env{$cache_str})) {	if (defined($env{$cache_str})) {
unless (ref($possibles) eq 'HASH') {	if ($ignorecachednull) {
if ($ignorecachednull) {	return $env{$cache_str} unless ($env{$cache_str} eq '');
return $env{$cache_str} unless ($env{$cache_str} eq '');	} else {
} else {	return $env{$cache_str};
return $env{$cache_str};
}
}	}
}	}
# no filename provided? try from environment	# no filename provided? try from environment
unless ($thisfn) {	unless ($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 12694 sub symbread {	Line 11827 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 12738 sub symbread {	Line 11863 sub symbread {
$syval=&encode_symb($bighash{'map_id_'.$mapid},	$syval=&encode_symb($bighash{'map_id_'.$mapid},
$resid,$thisfn);	$resid,$thisfn);
if (ref($possibles) eq 'HASH') {	if (ref($possibles) eq 'HASH') {
unless ($bighash{'randomout_'.$ids} \|\| $env{'request.role.adv'}) {	$possibles->{$syval} = 1;
$possibles->{$syval} = 1;
}
}	}
if ($checkforblock) {	if ($checkforblock) {
unless ($bighash{'randomout_'.$ids} \|\| $env{'request.role.adv'}) {	my @blockers = &has_comm_blocking('bre',$syval,$bighash{'src_'.$ids});
my @blockers = &has_comm_blocking('bre',$syval,$bighash{'src_'.$ids},'',$noenccheck);	if (@blockers) {
if (@blockers) {	$syval = '';
$syval = '';	return;
untie(%bighash);
return $env{$cache_str}='';
}
}	}
}	}
} elsif ((!$donotrecurse) \|\| ($checkforblock) \|\| (ref($possibles) eq 'HASH')) {	} elsif ((!$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) {
Line 12760 sub symbread {	Line 11880 sub symbread {
my $canaccess;	my $canaccess;
if (($donotrecurse) \|\| ($checkforblock) \|\| (ref($possibles) eq 'HASH')) {	if (($donotrecurse) \|\| ($checkforblock) \|\| (ref($possibles) eq 'HASH')) {
$canaccess = 1;	$canaccess = 1;
} else {	} else {
$canaccess = &allowed('bre',$file);	$canaccess = &allowed('bre',$file);
}	}
if ($canaccess) {	if ($canaccess) {
my ($mapid,$resid)=split(/\./,$id);	my ($mapid,$resid)=split(/\./,$id);
if ($bighash{'map_type_'.$mapid} ne 'page') {	if ($bighash{'map_type_'.$mapid} ne 'page') {
my $poss_syval=&encode_symb($bighash{'map_id_'.$mapid},	my $poss_syval=&encode_symb($bighash{'map_id_'.$mapid},
$resid,$thisfn);	$resid,$thisfn);
next if ($bighash{'randomout_'.$id} && !$env{'request.role.adv'});	if (ref($possibles) eq 'HASH') {
next unless (($noenccheck) \|\| ($bighash{'encrypted_'.$id} eq $env{'request.enc'}));	$possibles->{$syval} = 1;
	}
if ($checkforblock) {	if ($checkforblock) {
my @blockers = &has_comm_blocking('bre',$poss_syval,$file,'',$noenccheck);	my @blockers = &has_comm_blocking('bre',$poss_syval,$file);
if (@blockers > 0) {	unless (@blockers > 0) {
$syval = '';
} else {
$syval = $poss_syval;	$syval = $poss_syval;
$realpossible++;	$realpossible++;
}	}
Line 12782 sub symbread {	Line 11901 sub symbread {
$syval = $poss_syval;	$syval = $poss_syval;
$realpossible++;	$realpossible++;
}	}
if ($syval) {
if (ref($possibles) eq 'HASH') {
$possibles->{$syval} = 1;
}
}
}	}
}	}
}	}
Line 12948 sub rndseed {	Line 12062 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 13133 sub rndseed_CODE_64bit5 {	Line 12248 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) = map { abs($_); } (split(/[,:]/,$rndseed));
if ((!$num1) \|\| (!$num2) \|\| ($num1 > 2147483562) \|\| ($num2 > 2147483398)) {	if ((!$num1) \|\| (!$num2) \|\| ($num1 > 2147483562) \|\| ($num2 > 2147483398)) {
&Math::Random::random_set_seed_from_phrase($rndseed);	&Math::Random::random_set_seed_from_phrase($rndseed);
} else {	} else {
Line 13324 sub repcopy_userfile {	Line 12439 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 13351 sub tokenwrapper {	Line 12465 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='.$perlvar{'lonHostID'};
} else {	} else {
Line 13370 sub getuploaded {	Line 12483 sub getuploaded {
my ($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 13393 sub readfile {	Line 12505 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 13506 sub machine_ids {	Line 12618 sub machine_ids {

sub additional_machine_domains {	sub additional_machine_domains {
my @domains;	my @domains;
if (-e "$perlvar{'lonTabDir'}/expected_domains.tab") {	open(my $fh,"<$perlvar{'lonTabDir'}/expected_domains.tab");
if (open(my $fh,"<","$perlvar{'lonTabDir'}/expected_domains.tab")) {	while( my $line = <$fh>) {
while( my $line = <$fh>) {	$line =~ s/\s//g;
chomp($line);	push(@domains,$line);
$line =~ s/\s//g;
push(@domains,$line);
}
close($fh);
}
}	}
return @domains;	return @domains;
}	}
Line 13532 sub default_login_domain {	Line 12639 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 waf_allssl {
my ($host_name) = @_;
my $alias = &get_proxy_alias();
if ($host_name eq '') {
$host_name = $ENV{'SERVER_NAME'};
}
if (($host_name ne '') && ($alias eq $host_name)) {
my $serverhomedom = &host_domain($perlvar{'lonHostID'});
my %defdomdefaults = &get_domain_defaults($serverhomedom);
if ($defdomdefaults{'waf_sslopt'}) {
return $defdomdefaults{'waf_sslopt'};
}
}
return;
}

sub get_requestor_ip {
my ($r,$nolookup,$noproxy) = @_;
my $from_ip;
if (ref($r)) {
if ($r->can('useragent_ip')) {
if ($noproxy && $r->can('client_ip')) {
$from_ip = $r->client_ip();
} else {
$from_ip = $r->useragent_ip();
}
} elsif ($r->connection->can('remote_ip')) {
$from_ip = $r->connection->remote_ip();
} else {
$from_ip = $r->get_remote_host($nolookup);
}
} else {
$from_ip = $ENV{'REMOTE_ADDR'};
}
return $from_ip if ($noproxy);
# Who controls proxy settings for server
my $dom_in_use = $Apache::lonnet::perlvar{'lonDefDomain'};
my $proxyinfo = &get_proxy_settings($dom_in_use);
if ((ref($proxyinfo) eq 'HASH') && ($from_ip)) {
if ($proxyinfo->{'vpnint'}) {
if (&ip_match($from_ip,$proxyinfo->{'vpnint'})) {
return $from_ip;
}
}
if ($proxyinfo->{'trusted'}) {
if (&ip_match($from_ip,$proxyinfo->{'trusted'})) {
my $ipheader = $proxyinfo->{'ipheader'};
my ($ip,$xfor);
if (ref($r)) {
if ($ipheader) {
$ip = $r->headers_in->{$ipheader};
}
$xfor = $r->headers_in->{'X-Forwarded-For'};
} else {
if ($ipheader) {
$ip = $ENV{'HTTP_'.uc($ipheader)};
}
$xfor = $ENV{'HTTP_X_FORWARDED_FOR'};
}
if (($ip eq '') && ($xfor ne '')) {
foreach my $poss_ip (reverse(split(/\s,\s/,$xfor))) {
unless (&ip_match($poss_ip,$proxyinfo->{'trusted'})) {
$ip = $poss_ip;
last;
}
}
}
if ($ip ne '') {
return $ip;
}
}
}
}
return $from_ip;
}

sub get_proxy_settings {
my ($dom_in_use) = @_;
my %domdefaults = &Apache::lonnet::get_domain_defaults($dom_in_use);
my $proxyinfo = {
ipheader => $domdefaults{'waf_ipheader'},
trusted => $domdefaults{'waf_trusted'},
vpnint => $domdefaults{'waf_vpnint'},
vpnext => $domdefaults{'waf_vpnext'},
sslopt => $domdefaults{'waf_sslopt'},
};
return $proxyinfo;
}

sub ip_match {
my ($ip,$pattern_str) = @_;
$ip=Net::CIDR::cidrvalidate($ip);
if ($ip) {
return Net::CIDR::cidrlookup($ip,split(/\s,\s/,$pattern_str));
}
return;
}

sub get_proxy_alias {
my ($lonid) = @_;
if ($lonid eq '') {
$lonid = $perlvar{'lonHostID'};
}
if (!defined(&hostname($lonid))) {
return;
}
if ($lonid ne '') {
my ($alias,$cached) = &is_cached_new('proxyalias',$lonid);
if ($cached) {
return $alias;
}
my $dom = &Apache::lonnet::host_domain($lonid);
if ($dom ne '') {
my $cachetime = 606024;
my %domconfig =
&Apache::lonnet::get_dom('configuration',['wafproxy'],$dom);
if (ref($domconfig{'wafproxy'}) eq 'HASH') {
if (ref($domconfig{'wafproxy'}{'alias'}) eq 'HASH') {
$alias = $domconfig{'wafproxy'}{'alias'}{$lonid};
}
}
return &do_cache_new('proxyalias',$lonid,$alias,$cachetime);
}
}
return;
}

sub use_proxy_alias {
my ($r,$lonid) = @_;
my $alias = &get_proxy_alias($lonid);
if ($alias) {
my $dom = &host_domain($lonid);
if ($dom ne '') {
my $proxyinfo = &get_proxy_settings($dom);
my ($vpnint,$remote_ip);
if (ref($proxyinfo) eq 'HASH') {
$vpnint = $proxyinfo->{'vpnint'};
if ($vpnint) {
$remote_ip = &get_requestor_ip($r,1,1);
}
}
unless ($vpnint && &ip_match($remote_ip,$vpnint)) {
return $alias;
}
}
}
return;
}

sub alias_sso {
my ($lonid) = @_;
if ($lonid eq '') {
$lonid = $perlvar{'lonHostID'};
}
if (!defined(&hostname($lonid))) {
return;
}
if ($lonid ne '') {
my ($use_alias,$cached) = &is_cached_new('proxysaml',$lonid);
if ($cached) {
return $use_alias;
}
my $dom = &Apache::lonnet::host_domain($lonid);
if ($dom ne '') {
my $cachetime = 606024;
my %domconfig =
&Apache::lonnet::get_dom('configuration',['wafproxy'],$dom);
if (ref($domconfig{'wafproxy'}) eq 'HASH') {
if (ref($domconfig{'wafproxy'}{'saml'}) eq 'HASH') {
$use_alias = $domconfig{'wafproxy'}{'saml'}{$lonid};
}
}
return &do_cache_new('proxysaml',$lonid,$use_alias,$cachetime);
}
}
return;
}

sub get_saml_landing {
my ($lonid) = @_;
if ($lonid eq '') {
my $defdom = &default_login_domain();
my @hosts = &current_machine_ids();
if (@hosts > 1) {
foreach my $hostid (@hosts) {
if (&host_domain($hostid) eq $defdom) {
$lonid = $hostid;
last;
}
}
} else {
$lonid = $perlvar{'lonHostID'};
}
if ($lonid) {
unless (&Apache::lonnet::host_domain($lonid) eq $defdom) {
return;
}
} else {
return;
}
} elsif (!defined(&hostname($lonid))) {
return;
}
my ($landing,$cached) = &is_cached_new('samllanding',$lonid);
if ($cached) {
return $landing;
}
my $dom = &Apache::lonnet::host_domain($lonid);
if ($dom ne '') {
my $cachetime = 606024;
my %domconfig =
&Apache::lonnet::get_dom('configuration',['login'],$dom);
if (ref($domconfig{'login'}) eq 'HASH') {
if (ref($domconfig{'login'}{'saml'}) eq 'HASH') {
if (ref($domconfig{'login'}{'saml'}{$lonid}) eq 'HASH') {
$landing = 1;
}
}
}
return &do_cache_new('samllanding',$lonid,$landing,$cachetime);
}
return;
}

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

sub declutter {	sub declutter {
Line 13869 sub clutter {	Line 12689 sub clutter {
# &logthis("Got a blank emb style");	# &logthis("Got a blank emb style");
}	}
}	}
	} elsif ($thisfn =~ m{^/adm/$match_domain/$match_courseid/\d+/exttools?$}) {
	$thisfn='/adm/wrapper'.$thisfn;
}	}
return $thisfn;	return $thisfn;
}	}
Line 13942 sub get_dns {	Line 12764 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) = sort { $b cmp $a } keys(%alldns);
my @content;	my $ua=new LWP::UserAgent;
if ($dns eq Sys::Hostname::FQDN::fqdn()) {	$ua->timeout(30);
my $command = (split('/',$url))[3];	my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
my ($dir,$file) = &parse_getdns_url($command,$url);	my $response=$ua->request($request);
delete($alldns{$dns});	delete($alldns{$dns});
next if (($dir eq '') \|\| ($file eq ''));	next if ($response->is_error());
if (open(my $config,'<',"$dir/$file")) {	my @content = split("\n",$response->content);
@content = <$config>;	unless ($nocache) {
close($config);
}
} else {
my $ua=new LWP::UserAgent;
$ua->timeout(30);
my $request=new HTTP::Request('GET',"$alldns{$dns}://$dns$url");
my $response=$ua->request($request);
delete($alldns{$dns});
next if ($response->is_error());
@content = split("\n",$response->content);
}
unless ($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;
}	}

Line 14014 sub parse_dns_checksums_tab {	Line 12822 sub parse_dns_checksums_tab {
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 ($file =~ m{^/etc/httpd/conf}) {	if ($file =~ m{^/etc/httpd/conf}) {
Line 14046 sub fetch_dns_checksums {	Line 12854 sub fetch_dns_checksums {
return \%checksums;	return \%checksums;
}	}

sub parse_getdns_url {
my ($command,$url) = @_;
my $dir = $perlvar{'lonTabDir'};
my $file;
if ($command eq 'hosts') {
$file = 'dns_hosts.tab';
} elsif ($command eq 'domain') {
$file = 'dns_domain.tab';
} elsif ($command eq 'checksums') {
my $version = (split('/',$url))[4];
$file = "dns_checksums/$version.tab",
}
return ($dir,$file);
}

# ------------------------------------------------------------ Read domain file	# ------------------------------------------------------------ Read domain file
{	{
my $loaded;	my $loaded;
Line 14092 sub parse_getdns_url {	Line 12885 sub parse_getdns_url {
my ($ignore_cache,$nocache) = @_;	my ($ignore_cache,$nocache) = @_;
&get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache,$nocache);	&get_dns('/adm/dns/domain',\&parse_domain_tab,$ignore_cache,$nocache);
my $fh;	my $fh;
if (open($fh,"<",$perlvar{'lonTabDir'}.'/domain.tab')) {	if (open($fh,"<".$perlvar{'lonTabDir'}.'/domain.tab')) {
my @lines = <$fh>;	my @lines = <$fh>;
&parse_domain_tab(\@lines);	&parse_domain_tab(\@lines);
}	}
Line 14144 sub parse_getdns_url {	Line 12937 sub parse_getdns_url {
my ($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($protocol)) {
Line 14193 sub parse_getdns_url {	Line 12971 sub parse_getdns_url {
sub load_hosts_tab {	sub load_hosts_tab {
my ($ignore_cache,$nocache) = @_;	my ($ignore_cache,$nocache) = @_;
&get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache,$nocache);	&get_dns('/adm/dns/hosts',\&parse_hosts_tab,$ignore_cache,$nocache);
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 14455 sub all_loncaparevs {	Line 13233 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 2.11);
}	}

# ------------------------------------------------------- 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 14471 sub all_loncaparevs {	Line 13249 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 14500 BEGIN {	Line 13278 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 14514 BEGIN {	Line 13292 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 14528 BEGIN {	Line 13306 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 14548 BEGIN {	Line 13326 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/ \|\| $configline=~/^#/) { next; }
Line 14563 BEGIN {	Line 13341 BEGIN {
close($config);	close($config);
}	}

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

&load_loncaparevs();	&load_loncaparevs();

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

&load_serverhomeIDs();	&load_serverhomeIDs();

Line 14581 BEGIN {	Line 13359 BEGIN {
my $item = $token->[1];	my $item = $token->[1];
my $name = $token->[2]{'name'};	my $name = $token->[2]{'name'};
my $value = $token->[2]{'value'};	my $value = $token->[2]{'value'};
if ($item ne '' && $name ne '' && $value ne '') {	my $valuematch = $token->[2]{'valuematch'};
	my $namematch = $token->[2]{'namematch'};
	if ($item eq 'parameter') {
	if (($namematch ne '') \|\| (($name ne '') && ($value ne '' \|\| $valuematch ne ''))) {
	my $release = $parser->get_text();
	$release =~ s/(^\s\|\s$ )//gx;
	$needsrelease{$item.':'.$name.':'.$value.':'.$valuematch.':'.$namematch} = $release;
	}
	} elsif ($item ne '' && $name ne '') {
my $release = $parser->get_text();	my $release = $parser->get_text();
$release =~ s/(^\s\|\s$ )//gx;	$release =~ s/(^\s\|\s$ )//gx;
$needsrelease{$item.':'.$name.':'.$value} = $release;	$needsrelease{$item.':'.$name.':'.$value} = $release;
Line 14594 BEGIN {	Line 13380 BEGIN {
# ---------------------------------------------------------- Read managers table	# ---------------------------------------------------------- Read managers table
{	{
if (-e "$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 14613 BEGIN {	Line 13399 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 14864 the answer, and also caches if there is	Line 13640 the answer, and also caches if there is

=item *	=item *
X<idget()>	X<idget()>
B<idget($udom,@ids)>: find the usernames behind a list of IDs	B<idget($udom,$idsref,$namespace)>: find the usernames behind either
(IDs are a unique resource in a domain, there must be only 1 ID per	a list of student/employee IDs or clicker IDs
username, and only 1 username per ID in a specific domain) (returns	(student/employee IDs are a unique resource in a domain, there must be
hash: id=>name,id=>name)	only 1 ID per username, and only 1 username per ID in a specific domain).
	clickerIDs are not necessarily unique, as students might share clickers.
	(returns hash: id=>name,id=>name)

=item *	=item *
X<idrget()>	X<idrget()>
Line 14876 usernames (returns hash: name=>id,name=>	Line 13654 usernames (returns hash: name=>id,name=>

=item *	=item *
X<idput()>	X<idput()>
B<idput($udom,%ids)>: store away a list of names and associated IDs	B<idput($udom,$idsref,$uhome,$namespace)>: store away a list of
	names and associated student/employee IDs or clicker IDs.

	=item *
	X<iddel()>
	B<iddel($udom,$idshashref,$uhome,$namespace)>: delete unwanted
	student/employee ID or clicker ID username look-ups from domain.
	The homeserver ($uhome) and namespace ($namespace) are optional.
	If no $uhome is provided, it will be determined usig &homeserver()
	for each user. If no $namespace is provided, the default is ids.

	=item *
	X<updateclickers()>
	B<updateclickers($udom,$action,$idshashref,$uhome,$critical)>: update
	clicker ID-to-username look-ups in clickers.db on library server.
	Permitted actions are add or del (i.e., add or delete). The
	clickers.db contains clickerID as keys (escaped), and each corresponding
	value is an escaped comma-separated list of usernames (for whom the
	library server is the homeserver), who registered that particular ID.
	If $critical is true, the update will be sent via &critical, otherwise
	&reply() will be used.

=item *	=item *
X<rolesinit()>	X<rolesinit()>
Line 14924 The first argument is required, all othe	Line 13722 The first argument is required, all othe

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

F: full access	F: full access
Line 14958 in which case the null string is returne	Line 13756 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 14992 provided for types, will default to retu	Line 13789 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 15233 values that are the resource value. I b	Line 14030 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 15270 Returns:	Line 14067 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 15418 will be stored for query	Line 14133 will be stored for query

=item *	=item *

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

Args: filename is the filename (including path) for the file for which a symb	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	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	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	(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	a randompick); ignorecachednull, if true will prevent a symb of '' being
returned if $env{$cache_str} is defined as ''; checkforblock if true will	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	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	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	ref to a hash, which, as a side effect, will be populated with all possible
symbs (content blocking not tested).	symbs (content blocking not tested).

returns the data handle	returns the data handle

=item *	=item *
Line 15441 and is a possible symb for the URL in $t	Line 14156 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 15496 expirespread($uname,$udom,$stype,$usymb)	Line 14211 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 15510 when viewing in course context.	Line 14225 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 15532 homeserver.	Line 14247 homeserver.

=item *	=item *

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

=item *	=item *

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

=item *	=item *
Line 15683 server ($udom and $uhome are optional)	Line 14398 server ($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 15717 requestcourses: ability to request cours	Line 14432 requestcourses: ability to request cours
=over	=over

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

=back	=back

Line 15738 for course's uploaded content.	Line 14453 for course's uploaded content.
=over	=over

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

=back	=back

Line 15749 on your servers.	Line 14464 on your servers.

=over	=over

=item	=item
remotesessions, hostedsessions	remotesessions, hostedsessions

=back	=back
Line 15757 remotesessions, hostedsessions	Line 14472 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 16043 userspace, probably shouldn't be called	Line 14758 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 16189 Returns:	Line 14903 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 16201 Args: (first three required; six others	Line 14915 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:

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Removed from v.1.1172.2.145
changed lines
	Added in v.1.1324