loncom/lonnet/perl/lonnet.pm - diff

Return to lonnet.pm CVS log

Up to [LON-CAPA] / loncom / lonnet / perl

Diff for /loncom/lonnet/perl/lonnet.pm between versions 1.1172.2.15 and 1.1256

version 1.1172.2.15, 2012/12/31 14:59:54	version 1.1256, 2014/04/23 10:11:34
Line 75 use LWP::UserAgent();	Line 75 use LWP::UserAgent();
use HTTP::Date;	use HTTP::Date;
use Image::Magick;	use Image::Magick;


	use Encode;

use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir	use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir
$_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease	$_64bit %env %protocol %loncaparevs %serverhomeIDs %needsrelease
%managerstab);	%managerstab);
Line 97 use File::MMagic;	Line 100 use File::MMagic;
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 File::Copy;	use File::Copy;

Line 108 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 122 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 $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' => $ENV{'REMOTE_ADDR'},
'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);
}	}
}	}

Line 351 sub get_remote_globals {	Line 356 sub get_remote_globals {
}	}

sub remote_devalidate_cache {	sub remote_devalidate_cache {
my ($lonhost,$name,$id) = @_;	my ($lonhost,$cachekeys) = @_;
my $response = &reply('devalidatecache:'.&escape($name).':'.&escape($id),$lonhost);	my $items;
	return unless (ref($cachekeys) eq 'ARRAY');
	my $cachestr = join('&',@{$cachekeys});
	my $response = &reply('devalidatecache:'.&escape($cachestr),$lonhost);
return $response;	return $response;
}	}

Line 598 sub transfer_profile_to_env {	Line 606 sub transfer_profile_to_env {

# ---------------------------------------------------- Check for valid session	# ---------------------------------------------------- Check for valid session
sub check_for_valid_session {	sub check_for_valid_session {
my ($r,$name) = @_;	my ($r,$name,$userhashref) = @_;
my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));	my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
if ($name eq '') {	if ($name eq '') {
$name = 'lonID';	$name = 'lonID';
Line 629 sub check_for_valid_session {	Line 637 sub check_for_valid_session {
\|\| !defined($disk_env{'user.domain'})) {	\|\| !defined($disk_env{'user.domain'})) {
return undef;	return undef;
}	}

	if (ref($userhashref) eq 'HASH') {
	$userhashref->{'name'} = $disk_env{'user.name'};
	$userhashref->{'domain'} = $disk_env{'user.domain'};
	}

return $handle;	return $handle;
}	}

Line 662 sub appenv {	Line 676 sub appenv {
if (($key =~ /^user\.role/) \|\| ($key =~ /^user\.priv/)) {	if (($key =~ /^user\.role/) \|\| ($key =~ /^user\.priv/)) {
$refused = 1;	$refused = 1;
if (ref($roles) eq 'ARRAY') {	if (ref($roles) eq 'ARRAY') {
my ($type,$role) = ($key =~ /^user\.(role\|priv)\.([^.]+)\./);	my ($type,$role) = ($key =~ m{^user\.(role\|priv)\.(.+?)\./});
if (grep(/^\Q$role\E$/,@{$roles})) {	if (grep(/^\Q$role\E$/,@{$roles})) {
$refused = 0;	$refused = 0;
}	}
Line 876 sub spareserver {	Line 890 sub spareserver {
}	}

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

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

my $loadans = &reply('load', $try_server);	my $loadans = &reply('load', $try_server);
my $userloadans = &reply('userload',$try_server);	my $userloadans = &reply('userload',$try_server);
Line 937 sub has_user_session {	Line 961 sub has_user_session {
# --------- determine least loaded server in a user's domain which allows login	# --------- determine least loaded server in a user's domain which allows login

sub choose_server {	sub choose_server {
my ($udom,$checkloginvia) = @_;	my ($udom,$checkloginvia,$required) = @_;
my %domconfhash = &Apache::loncommon::get_domainconf($udom);	my %domconfhash = &Apache::loncommon::get_domainconf($udom);
my %servers = &get_servers($udom);	my %servers = &get_servers($udom);
my $lowest_load = 30000;	my $lowest_load = 30000;
Line 949 sub choose_server {	Line 973 sub choose_server {
if ($loginvia) {	if ($loginvia) {
my ($server,$path) = split(/:/,$loginvia);	my ($server,$path) = split(/:/,$loginvia);
($login_host, $lowest_load) =	($login_host, $lowest_load) =
&compare_server_load($server, $login_host, $lowest_load);	&compare_server_load($server, $login_host, $lowest_load, $required);
if ($login_host eq $server) {	if ($login_host eq $server) {
$portal_path = $path;	$portal_path = $path;
$isredirect = 1;	$isredirect = 1;
}	}
} else {	} else {
($login_host, $lowest_load) =	($login_host, $lowest_load) =
&compare_server_load($lonhost, $login_host, $lowest_load);	&compare_server_load($lonhost, $login_host, $lowest_load, $required);
if ($login_host eq $lonhost) {	if ($login_host eq $lonhost) {
$portal_path = '';	$portal_path = '';
$isredirect = '';	$isredirect = '';
Line 964 sub choose_server {	Line 988 sub choose_server {
}	}
} else {	} else {
($login_host, $lowest_load) =	($login_host, $lowest_load) =
&compare_server_load($lonhost, $login_host, $lowest_load);	&compare_server_load($lonhost, $login_host, $lowest_load, $required);
}	}
}	}
if ($login_host ne '') {	if ($login_host ne '') {
Line 1261 sub check_loadbalancing {	Line 1285 sub check_loadbalancing {
}	}
}	}
if (ref($result) eq 'HASH') {	if (ref($result) eq 'HASH') {
($is_balancer,$currtargets,$currrules) =	($is_balancer,$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($currrules) eq 'HASH') {
Line 1311 sub check_loadbalancing {	Line 1335 sub check_loadbalancing {
}	}
}	}
} elsif (($homeintdom) && ($udom ne $serverhomedom)) {	} elsif (($homeintdom) && ($udom ne $serverhomedom)) {
my ($result,$cached)=&is_cached_new('loadbalancing',$serverhomedom);	($result,$cached)=&is_cached_new('loadbalancing',$serverhomedom);
unless (defined($cached)) {	unless (defined($cached)) {
my %domconfig =	my %domconfig =
&Apache::lonnet::get_dom('configuration',['loadbalancing'],$serverhomedom);	&Apache::lonnet::get_dom('configuration',['loadbalancing'],$serverhomedom);
Line 1320 sub check_loadbalancing {	Line 1344 sub check_loadbalancing {
}	}
}	}
if (ref($result) eq 'HASH') {	if (ref($result) eq 'HASH') {
($is_balancer,$currtargets,$currrules) =	($is_balancer,$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 1376 sub check_loadbalancing {	Line 1400 sub check_loadbalancing {
$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});
}	}
}	}
Line 1566 sub idput {	Line 1590 sub idput {
}	}
}	}

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

	sub iddel {
	my ($udom,$idshashref,$uhome)=@_;
	my %result=();
	unless (ref($idshashref) eq 'HASH') {
	return %result;
	}
	my %servers=();
	while (my ($id,$uname) = each(%{$idshashref})) {
	my $uhom;
	if ($uhome) {
	$uhom = $uhome;
	} else {
	$uhom=&homeserver($uname,$udom);
	}
	if ($uhom ne 'no_host') {
	if ($servers{$uhom}) {
	$servers{$uhom}.='&'.&escape($id);
	} else {
	$servers{$uhom}=&escape($id);
	}
	}
	}
	foreach my $server (keys(%servers)) {
	$result{$server} = &critical('iddel:'.$udom.':'.$servers{$server},$uhome);
	}
	return %result;
	}

# ------------------------------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, $regexp) = @_;
Line 1691 sub retrieve_inst_usertypes {	Line 1745 sub retrieve_inst_usertypes {
my %domdefs = &Apache::lonnet::get_domain_defaults($udom);	my %domdefs = &Apache::lonnet::get_domain_defaults($udom);
if ((ref($domdefs{'inststatustypes'}) eq 'HASH') &&	if ((ref($domdefs{'inststatustypes'}) eq 'HASH') &&
(ref($domdefs{'inststatusorder'}) eq 'ARRAY')) {	(ref($domdefs{'inststatusorder'}) eq 'ARRAY')) {
%returnhash = %{$domdefs{'inststatustypes'}};	return ($domdefs{'inststatustypes'},$domdefs{'inststatusorder'});
@order = @{$domdefs{'inststatusorder'}};
} else {	} else {
if (defined(&domain($udom,'primary'))) {	if (defined(&domain($udom,'primary'))) {
my $uhome=&domain($udom,'primary');	my $uhome=&domain($udom,'primary');
my $rep=&reply("inst_usertypes:$udom",$uhome);	my $rep=&reply("inst_usertypes:$udom",$uhome);
if ($rep =~ /^(con_lost\|error\|no_such_host\|refused)/) {	if ($rep =~ /^(con_lost\|error\|no_such_host\|refused)/) {
&logthis("get_dom failed - $rep returned from $uhome in domain: $udom");	&logthis("retrieve_inst_usertypes failed - $rep returned from $uhome in domain: $udom");
return (\%returnhash,\@order);	return (\%returnhash,\@order);
}	}
my ($hashitems,$orderitems) = split(/:/,$rep);	my ($hashitems,$orderitems) = split(/:/,$rep);
Line 1714 sub retrieve_inst_usertypes {	Line 1767 sub retrieve_inst_usertypes {
push(@order,&unescape($item));	push(@order,&unescape($item));
}	}
} else {	} else {
&logthis("get_dom failed - no primary domain server for $udom");	&logthis("retrieve_inst_usertypes failed - no primary domain server for $udom");
}	}
	return (\%returnhash,\@order);
}	}
return (\%returnhash,\@order);
}	}

sub is_domainimage {	sub is_domainimage {
Line 1942 sub inst_userrules {	Line 1995 sub inst_userrules {
# ------------- Get Authentication, Language and User Tools Defaults for Domain	# ------------- Get Authentication, Language and User Tools Defaults for Domain

sub get_domain_defaults {	sub get_domain_defaults {
my ($domain) = @_;	my ($domain,$ignore_cache) = @_;
	return if (($domain eq '') \|\| ($domain eq 'public'));
my $cachetime = 606024;	my $cachetime = 606024;
my ($result,$cached)=&is_cached_new('domdefaults',$domain);	unless ($ignore_cache) {
if (defined($cached)) {	my ($result,$cached)=&is_cached_new('domdefaults',$domain);
if (ref($result) eq 'HASH') {	if (defined($cached)) {
return %{$result};	if (ref($result) eq 'HASH') {
	return %{$result};
	}
}	}
}	}
my %domdefaults;	my %domdefaults;
Line 1955 sub get_domain_defaults {	Line 2011 sub get_domain_defaults {
&Apache::lonnet::get_dom('configuration',['defaults','quotas',	&Apache::lonnet::get_dom('configuration',['defaults','quotas',
'requestcourses','inststatus',	'requestcourses','inststatus',
'coursedefaults','usersessions',	'coursedefaults','usersessions',
'requestauthor'],$domain);	'requestauthor','selfenrollment'],$domain);
	my @coursetypes = ('official','unofficial','community','textbook');
if (ref($domconfig{'defaults'}) eq 'HASH') {	if (ref($domconfig{'defaults'}) eq 'HASH') {
$domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};	$domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};
$domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};	$domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
Line 1973 sub get_domain_defaults {	Line 2030 sub get_domain_defaults {
$domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'};	$domdefaults{'defaultquota'} = $domconfig{'quotas'}{'defaultquota'};
} else {	} else {
$domdefaults{'defaultquota'} = $domconfig{'quotas'};	$domdefaults{'defaultquota'} = $domconfig{'quotas'};
}	}
my @usertools = ('aboutme','blog','webdav','portfolio');	my @usertools = ('aboutme','blog','webdav','portfolio');
foreach my $item (@usertools) {	foreach my $item (@usertools) {
if (ref($domconfig{'quotas'}{$item}) eq 'HASH') {	if (ref($domconfig{'quotas'}{$item}) eq 'HASH') {
$domdefaults{$item} = $domconfig{'quotas'}{$item};	$domdefaults{$item} = $domconfig{'quotas'}{$item};
}	}
}	}
	if (ref($domconfig{'quotas'}{'authorquota'}) eq 'HASH') {
	$domdefaults{'authorquota'} = $domconfig{'quotas'}{'authorquota'};
	}
}	}
if (ref($domconfig{'requestcourses'}) eq 'HASH') {	if (ref($domconfig{'requestcourses'}) eq 'HASH') {
foreach my $item ('official','unofficial','community') {	foreach my $item ('official','unofficial','community','textbook') {
$domdefaults{$item} = $domconfig{'requestcourses'}{$item};	$domdefaults{$item} = $domconfig{'requestcourses'}{$item};
}	}
}	}
Line 1990 sub get_domain_defaults {	Line 2050 sub get_domain_defaults {
$domdefaults{'requestauthor'} = $domconfig{'requestauthor'};	$domdefaults{'requestauthor'} = $domconfig{'requestauthor'};
}	}
if (ref($domconfig{'inststatus'}) eq 'HASH') {	if (ref($domconfig{'inststatus'}) eq 'HASH') {
foreach my $item ('inststatustypes','inststatusorder') {	foreach my $item ('inststatustypes','inststatusorder','inststatusguest') {
$domdefaults{$item} = $domconfig{'inststatus'}{$item};	$domdefaults{$item} = $domconfig{'inststatus'}{$item};
}	}
}	}
if (ref($domconfig{'coursedefaults'}) eq 'HASH') {	if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
foreach my $item ('canuse_pdfforms') {	$domdefaults{'canuse_pdfforms'} = $domconfig{'coursedefaults'}{'canuse_pdfforms'};
$domdefaults{$item} = $domconfig{'coursedefaults'}{$item};	foreach my $type (@coursetypes) {
	if (ref($domconfig{'coursedefaults'}{'coursecredits'}) eq 'HASH') {
	unless ($type eq 'community') {
	$domdefaults{$type.'credits'} = $domconfig{'coursedefaults'}{'coursecredits'}{$type};
	}
	}
	if (ref($domconfig{'coursedefaults'}{'uploadquota'}) eq 'HASH') {
	$domdefaults{$type.'quota'} = $domconfig{'coursedefaults'}{'uploadquota'}{$type};
	}
}	}
}	}
if (ref($domconfig{'usersessions'}) eq 'HASH') {	if (ref($domconfig{'usersessions'}) eq 'HASH') {
Line 2007 sub get_domain_defaults {	Line 2075 sub get_domain_defaults {
$domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'};	$domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'};
}	}
}	}
&Apache::lonnet::do_cache_new('domdefaults',$domain,\%domdefaults,	if (ref($domconfig{'selfenrollment'}) eq 'HASH') {
$cachetime);	if (ref($domconfig{'selfenrollment'}{'admin'}) eq 'HASH') {
	my @settings = ('types','registered','enroll_dates','access_dates','section',
	'approval','limit');
	foreach my $type (@coursetypes) {
	if (ref($domconfig{'selfenrollment'}{'admin'}{$type}) eq 'HASH') {
	my @mgrdc = ();
	foreach my $item (@settings) {
	if ($domconfig{'selfenrollment'}{'admin'}{$type}{$item} eq '0') {
	push(@mgrdc,$item);
	}
	}
	if (@mgrdc) {
	$domdefaults{$type.'selfenrolladmdc'} = join(',',@mgrdc);
	}
	}
	}
	}
	if (ref($domconfig{'selfenrollment'}{'default'}) eq 'HASH') {
	foreach my $type (@coursetypes) {
	if (ref($domconfig{'selfenrollment'}{'default'}{$type}) eq 'HASH') {
	foreach my $item (keys(%{$domconfig{'selfenrollment'}{'default'}{$type}})) {
	$domdefaults{$type.'selfenroll'.$item} = $domconfig{'selfenrollment'}{'default'}{$type}{$item};
	}
	}
	}
	}
	}
	&do_cache_new('domdefaults',$domain,\%domdefaults,$cachetime);
return %domdefaults;	return %domdefaults;
}	}

Line 2605 sub ssi {	Line 2700 sub ssi {

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


if (wantarray) {	if (wantarray) {
return ($response->content, $response);	return ($content, $response);
} else {	} else {
return $response->content;	return $content;
}	}
}	}

Line 2640 sub allowuploaded {	Line 2738 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 2648 sub allowuploaded {	Line 2746 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 2742 sub can_edit_resource {	Line 2840 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 ($env{'form.forceedit'}) {
Line 2773 sub can_edit_resource {	Line 2871 sub can_edit_resource {
}	}
} elsif ($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;
Line 2798 sub can_edit_resource {	Line 2896 sub can_edit_resource {
$cfile =~ s{^http://}{};	$cfile =~ s{^http://}{};
$cfile = '/adm/wrapper/ext/'.$cfile;	$cfile = '/adm/wrapper/ext/'.$cfile;
}	}
	} elsif ($resurl =~ m{^/?adm/viewclasslist$}) {
	if ($env{'form.forceedit'}) {
	$forceview = 1;
	} else {
	$forceedit = 1;
	}
	$cfile = ($resurl =~ m{^/} ? $resurl : "/$resurl");
}	}
}	}
if ($uploaded \|\| $incourse) {	if ($uploaded \|\| $incourse) {
Line 2813 sub can_edit_resource {	Line 2918 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$/,@ids)) {
Line 2839 sub in_course {	Line 2944 sub in_course {
my ($udom,$uname,$cdom,$cnum,$type,$hideprivileged) = @_;	my ($udom,$uname,$cdom,$cnum,$type,$hideprivileged) = @_;
if ($hideprivileged) {	if ($hideprivileged) {
my $skipuser;	my $skipuser;
if (&privileged($uname,$udom)) {	my %coursehash = &coursedescription($cdom.'_'.$cnum);
	my @possdoms = ($cdom);
	if ($coursehash{'checkforpriv'}) {
	push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));
	}
	if (&privileged($uname,$udom,\@possdoms)) {
$skipuser = 1;	$skipuser = 1;
my %coursehash = &coursedescription($cdom.'_'.$cnum);
if ($coursehash{'nothideprivileged'}) {	if ($coursehash{'nothideprivileged'}) {
foreach my $item (split(/\s\,\s/,$coursehash{'nothideprivileged'})) {	foreach my $item (split(/\s\,\s/,$coursehash{'nothideprivileged'})) {
my $user;	my $user;
Line 3174 sub userfileupload {	Line 3283 sub userfileupload {
$codebase,$thumbwidth,$thumbheight,	$codebase,$thumbwidth,$thumbheight,
$resizewidth,$resizeheight,$context,$mimetype);	$resizewidth,$resizeheight,$context,$mimetype);
} else {	} else {
$fname=$env{'form.folder'}.'/'.$fname;	if ($env{'form.folder'}) {
	$fname=$env{'form.folder'}.'/'.$fname;
	}
return &process_coursefile('uploaddoc',$docuname,$docudom,	return &process_coursefile('uploaddoc',$docuname,$docudom,
$fname,$formname,$parser,	$fname,$formname,$parser,
$allfiles,$codebase,$mimetype);	$allfiles,$codebase,$mimetype);
Line 3189 sub userfileupload {	Line 3300 sub userfileupload {
} else {	} else {
my $docuname=$env{'user.name'};	my $docuname=$env{'user.name'};
my $docudom=$env{'user.domain'};	my $docudom=$env{'user.domain'};
if (exists($env{'form.group'})) {	if ((exists($env{'form.group'})) \|\| ($context eq 'syllabus')) {
$docuname=$env{'course.'.$env{'request.course.id'}.'.num'};	$docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
$docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};	$docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
}	}
Line 3339 sub extract_embedded_items {	Line 3450 sub extract_embedded_items {
&add_filetype($allfiles,$attr->{'src'},'src');	&add_filetype($allfiles,$attr->{'src'},'src');
}	}
if (lc($tagname) eq 'a') {	if (lc($tagname) eq 'a') {
&add_filetype($allfiles,$attr->{'href'},'href');	unless (($attr->{'href'} =~ /^#/) \|\| ($attr->{'href'} eq '')) {
	&add_filetype($allfiles,$attr->{'href'},'href');
	}
}	}
if (lc($tagname) eq 'script') {	if (lc($tagname) eq 'script') {
my $src;	my $src;
Line 3427 sub extract_embedded_items {	Line 3540 sub extract_embedded_items {
}	}
}	}
}	}
	if (lc($tagname) eq 'iframe') {
	my $src = $attr->{'src'} ;
	if (($src ne '') && ($src !~ m{^(/\|https?://)})) {
	&add_filetype($allfiles,$src,'src');
	} elsif ($src =~ m{^/}) {
	if ($env{'request.course.id'}) {
	my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
	my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
	my $url = &hreflocation('',$fullpath);
	if ($url =~ m{^/uploaded/$cdom/$cnum/docs/(\w+/\d+)/}) {
	my $relpath = $1;
	if ($src =~ m{^/uploaded/$cdom/$cnum/docs/\Q$relpath\E/(.+)$}) {
	&add_filetype($allfiles,$1,'src');
	}
	}
	}
	}
	}
if ($t->[4] =~ m{/>$}) {	if ($t->[4] =~ m{/>$}) {
pop(@state);	pop(@state);
}	}
} elsif ($t->[0] eq 'E') {	} elsif ($t->[0] eq 'E') {
my ($tagname) = ($t->[1]);	my ($tagname) = ($t->[1]);
Line 3870 sub get_course_adv_roles {	Line 4001 sub get_course_adv_roles {
$nothide{$user}=1;	$nothide{$user}=1;
}	}
}	}
	my @possdoms = ($coursehash{'domain'});
	if ($coursehash{'checkforpriv'}) {
	push(@possdoms,split(/,/,$coursehash{'checkforpriv'}));
	}
my %returnhash=();	my %returnhash=();
my %dumphash=	my %dumphash=
&dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});	&dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
Line 3882 sub get_course_adv_roles {	Line 4017 sub get_course_adv_roles {
if (($tstart) && ($now<$tstart)) { next; }	if (($tstart) && ($now<$tstart)) { next; }
my ($role,$username,$domain,$section)=split(/\:/,$entry);	my ($role,$username,$domain,$section)=split(/\:/,$entry);
if ($username eq '' \|\| $domain eq '') { next; }	if ($username eq '' \|\| $domain eq '') { next; }
unless (ref($privileged{$domain}) eq 'HASH') {	if ((&privileged($username,$domain,\@possdoms)) &&
my %dompersonnel =
&Apache::lonnet::get_domain_roles($domain,['dc'],$now,$now);
$privileged{$domain} = {};
foreach my $server (keys(%dompersonnel)) {
if (ref($dompersonnel{$server}) eq 'HASH') {
foreach my $user (keys(%{$dompersonnel{$server}})) {
my ($trole,$uname,$udom) = split(/:/,$user);
$privileged{$udom}{$uname} = 1;
}
}
}
}
if ((exists($privileged{$domain}{$username})) &&
(!$nothide{$username.':'.$domain})) { next; }	(!$nothide{$username.':'.$domain})) { next; }
if ($role eq 'cr') { next; }	if ($role eq 'cr') { next; }
if ($codes) {	if ($codes) {
Line 3926 sub get_my_roles {	Line 4048 sub get_my_roles {
if ($context eq 'userroles') {	if ($context eq 'userroles') {
%dumphash = &dump('roles',$udom,$uname);	%dumphash = &dump('roles',$udom,$uname);
} else {	} else {
%dumphash=	%dumphash = &dump('nohist_userroles',$udom,$uname);
&dump('nohist_userroles',$udom,$uname);
if ($hidepriv) {	if ($hidepriv) {
my %coursehash=&coursedescription($udom.'_'.$uname);	my %coursehash=&coursedescription($udom.'_'.$uname);
foreach my $user (split(/\s\,\s/,$coursehash{'nothideprivileged'})) {	foreach my $user (split(/\s\,\s/,$coursehash{'nothideprivileged'})) {
Line 3995 sub get_my_roles {	Line 4116 sub get_my_roles {
}	}
}	}
if ($hidepriv) {	if ($hidepriv) {
	my @privroles = ('dc','su');
if ($context eq 'userroles') {	if ($context eq 'userroles') {
if ((&privileged($username,$domain)) &&	next if (grep(/^\Q$role\E$/,@privroles));
(!$nothide{$username.':'.$domain})) {
next;
}
} else {	} else {
unless (ref($privileged{$domain}) eq 'HASH') {	my $possdoms = [$domain];
my %dompersonnel =	if (ref($roledoms) eq 'ARRAY') {
&Apache::lonnet::get_domain_roles($domain,['dc'],$now,$now);	push(@{$possdoms},@{$roledoms});
$privileged{$domain} = {};
if (keys(%dompersonnel)) {
foreach my $server (keys(%dompersonnel)) {
if (ref($dompersonnel{$server}) eq 'HASH') {
foreach my $user (keys(%{$dompersonnel{$server}})) {
my ($trole,$uname,$udom) = split(/:/,$user);
$privileged{$udom}{$uname} = $trole;
}
}
}
}
}	}
if (exists($privileged{$domain}{$username})) {	if (&privileged($username,$domain,$possdoms,\@privroles)) {
if (!$nothide{$username.':'.$domain}) {	if (!$nothide{$username.':'.$domain}) {
next;	next;
}	}
Line 4108 sub courseiddump {	Line 4216 sub courseiddump {
my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,	my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
$coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,	$coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
$selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,	$selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,
$cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner)=@_;	$cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner,
	$hasuniquecode)=@_;
my $as_hash = 1;	my $as_hash = 1;
my %returnhash;	my %returnhash;
if (!$domfilter) { $domfilter=''; }	if (!$domfilter) { $domfilter=''; }
Line 4120 sub courseiddump {	Line 4229 sub courseiddump {

if (($domfilter eq '') \|\|	if (($domfilter eq '') \|\|
(&host_domain($tryserver) eq $domfilter)) {	(&host_domain($tryserver) eq $domfilter)) {
my $rep =	my $rep;
&reply('courseiddump:'.&host_domain($tryserver).':'.	if (grep { $_ eq $tryserver } current_machine_ids()) {
$sincefilter.':'.&escape($descfilter).':'.	$rep = LONCAPA::Lond::dump_course_id_handler(
&escape($instcodefilter).':'.&escape($ownerfilter).	join(":", (&host_domain($tryserver), $sincefilter,
':'.&escape($coursefilter).':'.&escape($typefilter).	&escape($descfilter), &escape($instcodefilter),
':'.&escape($regexp_ok).':'.$as_hash.':'.	&escape($ownerfilter), &escape($coursefilter),
&escape($selfenrollonly).':'.&escape($catfilter).':'.	&escape($typefilter), &escape($regexp_ok),
$showhidden.':'.$caller.':'.&escape($cloner).':'.	$as_hash, &escape($selfenrollonly),
&escape($cc_clone).':'.$cloneonly.':'.	&escape($catfilter), $showhidden, $caller,
&escape($createdbefore).':'.&escape($createdafter).':'.	&escape($cloner), &escape($cc_clone), $cloneonly,
&escape($creationcontext).':'.$domcloner,	&escape($createdbefore), &escape($createdafter),
$tryserver);	&escape($creationcontext), $domcloner, $hasuniquecode)));
	} else {
	$rep = &reply('courseiddump:'.&host_domain($tryserver).':'.
	$sincefilter.':'.&escape($descfilter).':'.
	&escape($instcodefilter).':'.&escape($ownerfilter).
	':'.&escape($coursefilter).':'.&escape($typefilter).
	':'.&escape($regexp_ok).':'.$as_hash.':'.
	&escape($selfenrollonly).':'.&escape($catfilter).':'.
	$showhidden.':'.$caller.':'.&escape($cloner).':'.
	&escape($cc_clone).':'.$cloneonly.':'.
	&escape($createdbefore).':'.&escape($createdafter).':'.
	&escape($creationcontext).':'.$domcloner.':'.$hasuniquecode,
	$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 4237 sub get_domain_roles {	Line 4360 sub get_domain_roles {
}	}
my $rolelist;	my $rolelist;
if (ref($roles) eq 'ARRAY') {	if (ref($roles) eq 'ARRAY') {
$rolelist = join(':',@{$roles});	$rolelist = join('&',@{$roles});
}	}
my %personnel = ();	my %personnel = ();

Line 4779 sub restore {	Line 4902 sub restore {
if ($stuname) { $home=&homeserver($stuname,$domain); }	if ($stuname) { $home=&homeserver($stuname,$domain); }

if (!$symb) {	if (!$symb) {
unless ($symb=escape(&symbread())) { return ''; }	return if ($namespace eq 'courserequests');
	unless ($symb=escape(&symbread())) { return ''; }
} else {	} else {
$symb=&escape(&symbclean($symb));	unless ($namespace eq 'courserequests') {
	$symb=&escape(&symbclean($symb));
	}
}	}
if (!$namespace) {	if (!$namespace) {
unless ($namespace=$env{'request.course.id'}) {	unless ($namespace=$env{'request.course.id'}) {
Line 4916 sub update_released_required {	Line 5042 sub update_released_required {
# -------------------------------------------------See if a user is privileged	# -------------------------------------------------See if a user is privileged

sub privileged {	sub privileged {
my ($username,$domain)=@_;	my ($username,$domain,$possdomains,$possroles)=@_;

my %rolesdump = &dump("roles", $domain, $username) or return 0;
my $now = time;	my $now = time;
	my $roles;
	if (ref($possroles) eq 'ARRAY') {
	$roles = $possroles;
	} else {
	$roles = ['dc','su'];
	}
	if (ref($possdomains) eq 'ARRAY') {
	my %privileged = &privileged_by_domain($possdomains,$roles);
	foreach my $dom (@{$possdomains}) {
	if (($username =~ /^$match_username$/) && ($domain =~ /^$match_domain$/) &&
	(ref($privileged{$dom}) eq 'HASH')) {
	foreach my $role (@{$roles}) {
	if (ref($privileged{$dom}{$role}) eq 'HASH') {
	if (exists($privileged{$dom}{$role}{$username.':'.$domain})) {
	my ($end,$start) = split(/:/,$privileged{$dom}{$role}{$username.':'.$domain});
	return 1 unless (($end && $end < $now) \|\|
	($start && $start > $now));
	}
	}
	}
	}
	}
	} else {
	my %rolesdump = &dump("roles", $domain, $username) or return 0;
	my $now = time;

for my $role (@rolesdump{grep { ! /^rolesdef_/ } keys %rolesdump}) {	for my $role (@rolesdump{grep { ! /^rolesdef_/ } keys %rolesdump}) {
my ($trole, $tend, $tstart) = split(/_/, $role);	my ($trole, $tend, $tstart) = split(/_/, $role);
if (($trole eq 'dc') \|\| ($trole eq 'su')) {	if (grep(/^\Q$trole\E$/,@{$roles})) {
return 1 unless ($tend && $tend < $now)	return 1 unless ($tend && $tend < $now)
or ($tstart && $tstart > $now);	or ($tstart && $tstart > $now);
}	}
}	}
	}
return 0;	return 0;
}	}

	sub privileged_by_domain {
	my ($domains,$roles) = @_;
	my %privileged = ();
	my $cachetime = 606024;
	my $now = time;
	unless ((ref($domains) eq 'ARRAY') && (ref($roles) eq 'ARRAY')) {
	return %privileged;
	}
	foreach my $dom (@{$domains}) {
	next if (ref($privileged{$dom}) eq 'HASH');
	my $needroles;
	foreach my $role (@{$roles}) {
	my ($result,$cached)=&is_cached_new('priv_'.$role,$dom);
	if (defined($cached)) {
	if (ref($result) eq 'HASH') {
	$privileged{$dom}{$role} = $result;
	}
	} else {
	$needroles = 1;
	}
	}
	if ($needroles) {
	my %dompersonnel = &get_domain_roles($dom,$roles);
	$privileged{$dom} = {};
	foreach my $server (keys(%dompersonnel)) {
	if (ref($dompersonnel{$server}) eq 'HASH') {
	foreach my $item (keys(%{$dompersonnel{$server}})) {
	my ($trole,$uname,$udom,$rest) = split(/:/,$item,4);
	my ($end,$start) = split(/:/,$dompersonnel{$server}{$item});
	next if ($end && $end < $now);
	$privileged{$dom}{$trole}{$uname.':'.$udom} =
	$dompersonnel{$server}{$item};
	}
	}
	}
	if (ref($privileged{$dom}) eq 'HASH') {
	foreach my $role (@{$roles}) {
	if (ref($privileged{$dom}{$role}) eq 'HASH') {
	&do_cache_new('priv_'.$role,$dom,$privileged{$dom}{$role},$cachetime);
	} else {
	my %hash = ();
	&do_cache_new('priv_'.$role,$dom,\%hash,$cachetime);
	}
	}
	}
	}
	}
	return %privileged;
	}

# -------------------------------------------------------- Get user privileges	# -------------------------------------------------------- Get user privileges

sub rolesinit {	sub rolesinit {
Line 5041 sub rolesinit {	Line 5240 sub rolesinit {
}	}

sub set_arearole {	sub set_arearole {
my ($trole,$area,$tstart,$tend,$domain,$username) = @_;	my ($trole,$area,$tstart,$tend,$domain,$username,$nolog) = @_;
	unless ($nolog) {
# log the associated role with the area	# log the associated role with the area
&userrolelog($trole,$username,$domain,$area,$tstart,$tend);	&userrolelog($trole,$username,$domain,$area,$tstart,$tend);
	}
return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);	return ('user.role.'.$trole.'.'.$area => $tstart.'.'.$tend);
}	}

sub custom_roleprivs {	sub custom_roleprivs {
my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;	my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);	my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
my $homsvr=homeserver($rauthor,$rdomain);	my $homsvr = &homeserver($rauthor,$rdomain);
if (&hostname($homsvr) ne '') {	if (&hostname($homsvr) ne '') {
my ($rdummy,$roledef)=	my ($rdummy,$roledef)=
&get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);	&get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
Line 5171 sub set_userprivs {	Line 5372 sub set_userprivs {

sub role_status {	sub role_status {
my ($rolekey,$update,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;	my ($rolekey,$update,$refresh,$now,$role,$where,$trolecode,$tstatus,$tstart,$tend) = @_;
my @pwhere = ();
if (exists($env{$rolekey}) && $env{$rolekey} ne '') {	if (exists($env{$rolekey}) && $env{$rolekey} ne '') {
(undef,undef,$$role,@pwhere)=split(/\./,$rolekey);	my ($one,$two) = split(m{\./},$rolekey,2);
	(undef,undef,$$role) = split(/\./,$one,3);
unless (!defined($$role) \|\| $$role eq '') {	unless (!defined($$role) \|\| $$role eq '') {
$$where=join('.',@pwhere);	$$where = '/'.$two;
$$trolecode=$$role.'.'.$$where;	$$trolecode=$$role.'.'.$$where;
($$tstart,$$tend)=split(/\./,$env{$rolekey});	($$tstart,$$tend)=split(/\./,$env{$rolekey});
$$tstatus='is';	$$tstatus='is';
Line 5312 sub set_adhoc_privileges {	Line 5513 sub set_adhoc_privileges {
my $area = '/'.$dcdom.'/'.$pickedcourse;	my $area = '/'.$dcdom.'/'.$pickedcourse;
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'});	$env{'user.name'},1);
my %ccrole = ();	my %ccrole = ();
&standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);	&standard_roleprivs(\%ccrole,$role,$dcdom,$spec,$pickedcourse,$area);
my ($author,$adv)= &set_userprivs(\%userroles,\%ccrole);	my ($author,$adv)= &set_userprivs(\%userroles,\%ccrole);
Line 5375 sub del {	Line 5576 sub del {

# -------------------------------------------------------------- dump interface	# -------------------------------------------------------------- dump interface

	sub unserialize {
	my ($rep, $escapedkeys) = @_;

	return {} if $rep =~ /^error/;

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

	# see Lond::dump_with_regexp
	# if $escapedkeys hash keys won't get unescaped.
sub dump {	sub dump {
my ($namespace,$udomain,$uname,$regexp,$range)=@_;	my ($namespace,$udomain,$uname,$regexp,$range,$escapedkeys)=@_;
if (!$udomain) { $udomain=$env{'user.domain'}; }	if (!$udomain) { $udomain=$env{'user.domain'}; }
if (!$uname) { $uname=$env{'user.name'}; }	if (!$uname) { $uname=$env{'user.name'}; }
my $uhome=&homeserver($uname,$udomain);	my $uhome=&homeserver($uname,$udomain);

	my $reply;
	if (grep { $_ eq $uhome } current_machine_ids()) {
	# user is hosted on this machine
	$reply = LONCAPA::Lond::dump_with_regexp(join(":", ($udomain,
	$uname, $namespace, $regexp, $range)), $perlvar{'lonVersion'});
	return %{unserialize($reply, $escapedkeys)};
	}
if ($regexp) {	if ($regexp) {
$regexp=&escape($regexp);	$regexp=&escape($regexp);
} else {	} else {
Line 5392 sub dump {	Line 5618 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);	$key = unescape($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 5405 sub dump {	Line 5632 sub dump {

sub dumpstore {	sub dumpstore {
my ($namespace,$udomain,$uname,$regexp,$range)=@_;	my ($namespace,$udomain,$uname,$regexp,$range)=@_;
if (!$udomain) { $udomain=$env{'user.domain'}; }	# same as dump but keys must be escaped. They may contain colon separated
if (!$uname) { $uname=$env{'user.name'}; }	# lists of values that may themself contain colons (e.g. symbs).
my $uhome=&homeserver($uname,$udomain);	return &dump($namespace, $udomain, $uname, $regexp, $range, 1);
if ($regexp) {
$regexp=&escape($regexp);
} else {
$regexp='.';
}
my $rep=&reply("dump:$udomain:$uname:$namespace:$regexp:$range",$uhome);
my @pairs=split(/\&/,$rep);
my %returnhash=();
foreach my $item (@pairs) {
my ($key,$value)=split(/=/,$item,2);
next if ($key =~ /^error: 2 /);
$returnhash{$key}=&thaw_unescape($value);
}
return %returnhash;
}	}

# -------------------------------------------------------------- keys interface	# -------------------------------------------------------------- keys interface
Line 5447 sub currentdump {	Line 5660 sub currentdump {
$sdom = $env{'user.domain'} if (! defined($sdom));	$sdom = $env{'user.domain'} if (! defined($sdom));
$sname = $env{'user.name'} if (! defined($sname));	$sname = $env{'user.name'} if (! defined($sname));
my $uhome = &homeserver($sname,$sdom);	my $uhome = &homeserver($sname,$sdom);
my $rep=reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);	my $rep;

	if (grep { $_ eq $uhome } current_machine_ids()) {
	$rep = LONCAPA::Lond::dump_profile_database(join(":", ($sdom, $sname,
	$courseid)));
	} else {
	$rep = reply('currentdump:'.$sdom.':'.$sname.':'.$courseid,$uhome);
	}

return if ($rep =~ /^(error:\|no_such_host)/);	return if ($rep =~ /^(error:\|no_such_host)/);
#	#
my %returnhash=();	my %returnhash=();
Line 5690 sub tmpdel {	Line 5911 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 5710 sub get_timebased_id {	Line 5931 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 6026 sub usertools_access {	Line 6247 sub usertools_access {
official => 1,	official => 1,
unofficial => 1,	unofficial => 1,
community => 1,	community => 1,
	textbook => 1,
);	);
} elsif ($context eq 'requestauthor') {	} elsif ($context eq 'requestauthor') {
%tools = (	%tools = (
Line 6041 sub usertools_access {	Line 6263 sub usertools_access {
}	}
return if (!defined($tools{$tool}));	return if (!defined($tools{$tool}));

if ((!defined($udom)) \|\| (!defined($uname))) {	if (($udom eq '') \|\| ($uname eq '')) {
$udom = $env{'user.domain'};	$udom = $env{'user.domain'};
$uname = $env{'user.name'};	$uname = $env{'user.name'};
}	}
Line 6060 sub usertools_access {	Line 6282 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 6551 sub allowed {	Line 6773 sub allowed {
&& &is_portfolio_url($uri)) {	&& &is_portfolio_url($uri)) {
$thisallowed = &portfolio_access($uri);	$thisallowed = &portfolio_access($uri);
}	}

# Full access at system, domain or course-wide level? Exit.	# Full access at system, domain or course-wide level? Exit.
if ($thisallowed=~/F/) {	if ($thisallowed=~/F/) {
return 'F';	return 'F';
Line 6851 sub constructaccess {	Line 7073 sub constructaccess {
if (($allowed eq 'F') \|\| ($allowed eq 'U')) {	if (($allowed eq 'F') \|\| ($allowed eq 'U')) {
# Grant temporary access	# Grant temporary access
my $then=$env{'user.login.time'};	my $then=$env{'user.login.time'};
my $update==$env{'user.update.time'};	my $update=$env{'user.update.time'};
if (!$update) { $update = $then; }	if (!$update) { $update = $then; }
my $refresh=$env{'user.refresh.time'};	my $refresh=$env{'user.refresh.time'};
if (!$refresh) { $refresh = $update; }	if (!$refresh) { $refresh = $update; }
Line 7132 sub definerole {	Line 7354 sub definerole {
# ---------------- Make a metadata query against the network of library servers	# ---------------- Make a metadata query against the network of library servers

sub metadata_query {	sub metadata_query {
my ($query,$custom,$customshow,$server_array)=@_;	my ($query,$custom,$customshow,$server_array,$domains_hash)=@_;
my %rhash;	my %rhash;
my %libserv = &all_library();	my %libserv = &all_library();
my @server_list = (defined($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 $domains = '';
	if (ref($domains_hash) eq 'HASH') {
	$domains = $domains_hash->{$server};
	}
unless ($custom or $customshow) {	unless ($custom or $customshow) {
my $reply=&reply("querysend:".&escape($query),$server);	my $reply=&reply("querysend:".&escape($query).':::'.&escape($domains),$server);
$rhash{$server}=$reply;	$rhash{$server}=$reply;
}	}
else {	else {
my $reply=&reply("querysend:".&escape($query).':'.	my $reply=&reply("querysend:".&escape($query).':'.
&escape($custom).':'.&escape($customshow),	&escape($custom).':'.&escape($customshow).':'.&escape($domains),
$server);	$server);
$rhash{$server}=$reply;	$rhash{$server}=$reply;
}	}
Line 7390 sub auto_validate_instcode {	Line 7616 sub auto_validate_instcode {
}	}
$response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'.	$response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'.
&escape($instcode).':'.&escape($owner),$homeserver));	&escape($instcode).':'.&escape($owner),$homeserver));
my ($outcome,$description) = map { &unescape($_); } split('&',$response,2);	my ($outcome,$description,$defaultcredits) = map { &unescape($_); } split('&',$response,3);
return ($outcome,$description);	return ($outcome,$description,$defaultcredits);
}	}

sub auto_create_password {	sub auto_create_password {
Line 7633 sub auto_courserequest_checks {	Line 7859 sub auto_courserequest_checks {
}	}

sub auto_courserequest_validation {	sub auto_courserequest_validation {
my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist) = @_;	my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist,$custominfo) = @_;
my ($homeserver,$response);	my ($homeserver,$response);
if ($dom =~ /^$match_domain$/) {	if ($dom =~ /^$match_domain$/) {
$homeserver = &domain($dom,'primary');	$homeserver = &domain($dom,'primary');
}	}
unless ($homeserver eq 'no_host') {	unless ($homeserver eq 'no_host') {
	my $customdata;
	if (ref($custominfo) eq 'HASH') {
	$customdata = &freeze_escape($custominfo);
	}
$response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner).	$response=&unescape(&reply('autocrsreqvalidation:'.$dom.':'.&escape($owner).
':'.&escape($crstype).':'.&escape($inststatuslist).	':'.&escape($crstype).':'.&escape($inststatuslist).
':'.&escape($instcode).':'.&escape($instseclist),	':'.&escape($instcode).':'.&escape($instseclist).':'.
$homeserver));	$customdata,$homeserver));
}	}
return $response;	return $response;
}	}
Line 7662 sub auto_validate_class_sec {	Line 7891 sub auto_validate_class_sec {
return $response;	return $response;
}	}

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

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

sub get_coursegroups {	sub get_coursegroups {
Line 7930 sub assignrole {	Line 8186 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 = '';	$refused = '';
Line 7938 sub assignrole {	Line 8194 sub assignrole {
my %domdefaults = &get_domain_defaults($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 8031 sub assignrole {	Line 8287 sub assignrole {
$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,$udom);
Line 8331 sub modifyuser {	Line 8587 sub modifyuser {
sub modifystudent {	sub modifystudent {
my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,	my ($udom,$uname,$uid,$umode,$upass,$first,$middle,$last,$gene,$usec,
$end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,	$end,$start,$forceid,$desiredhome,$email,$type,$locktype,$cid,
$selfenroll,$context,$inststatus)=@_;	$selfenroll,$context,$inststatus,$credits)=@_;
if (!$cid) {	if (!$cid) {
unless ($cid=$env{'request.course.id'}) {	unless ($cid=$env{'request.course.id'}) {
return 'not_in_class';	return 'not_in_class';
Line 8343 sub modifystudent {	Line 8599 sub modifystudent {
$desiredhome,$email,$inststatus);	$desiredhome,$email,$inststatus);
unless ($reply eq 'ok') { return $reply; }	unless ($reply eq 'ok') { return $reply; }
# This will cause &modify_student_enrollment to get the uid from the	# This will cause &modify_student_enrollment to get the uid from the
# students 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,$cid,$selfenroll,$context);	$gene,$usec,$end,$start,$type,$locktype,
	$cid,$selfenroll,$context,$credits);
return $reply;	return $reply;
}	}

sub modify_student_enrollment {	sub modify_student_enrollment {
my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,$locktype,$cid,$selfenroll,$context) = @_;	my ($udom,$uname,$uid,$first,$middle,$last,$gene,$usec,$end,$start,$type,
	$locktype,$cid,$selfenroll,$context,$credits) = @_;
my ($cdom,$cnum,$chome);	my ($cdom,$cnum,$chome);
if (!$cid) {	if (!$cid) {
unless ($cid=$env{'request.course.id'}) {	unless ($cid=$env{'request.course.id'}) {
Line 8398 sub modify_student_enrollment {	Line 8656 sub modify_student_enrollment {
my %old_entry = &Apache::lonnet::get('classlist',[$user],$cdom,$cnum);	my %old_entry = &Apache::lonnet::get('classlist',[$user],$cdom,$cnum);
my $reply=cput('classlist',	my $reply=cput('classlist',
{$user =>	{$user =>
join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype) },	join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype,$credits) },
$cdom,$cnum);	$cdom,$cnum);
if (($reply eq 'ok') \|\| ($reply eq 'delayed')) {	if (($reply eq 'ok') \|\| ($reply eq 'delayed')) {
&devalidate_getsection_cache($udom,$uname,$cid);	&devalidate_getsection_cache($udom,$uname,$cid);
Line 8627 sub is_course {	Line 8885 sub is_course {
my %courses = &courseiddump($cdom, '.', 1, '.', '.', $cnum, undef, undef,	my %courses = &courseiddump($cdom, '.', 1, '.', '.', $cnum, undef, undef,
'.');	'.');

return unless exists($courses{$cdom.'_'.$cnum});	return unless(exists($courses{$cdom.'_'.$cnum}));
return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum;	return wantarray ? ($cdom, $cnum) : $cdom.'_'.$cnum;
}	}

Line 8652 sub store_userdata {	Line 8910 sub store_userdata {
$namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';	$namevalue.=&escape($key).'='.&freeze_escape($$storehash{$key}).'&';
}	}
$namevalue=~s/\&$//;	$namevalue=~s/\&$//;
	unless ($namespace eq 'courserequests') {
	$datakey = &escape($datakey);
	}
$result = &reply("store:$udom:$uname:$namespace:$datakey:".	$result = &reply("store:$udom:$uname:$namespace:$datakey:".
$namevalue,$uhome);	$namevalue,$uhome);
}	}
Line 9474 sub resdata {	Line 9735 sub resdata {
return undef;	return undef;
}	}

	sub get_numsuppfiles {
	my ($cnum,$cdom,$ignorecache)=@_;
	my $hashid=$cnum.':'.$cdom;
	my ($suppcount,$cached);
	unless ($ignorecache) {
	($suppcount,$cached) = &is_cached_new('suppcount',$hashid);
	}
	unless (defined($cached)) {
	my $chome=&homeserver($cnum,$cdom);
	unless ($chome eq 'no_host') {
	($suppcount,my $errors) = (0,0);
	my $suppmap = 'supplemental.sequence';
	($suppcount,$errors) =
	&Apache::loncommon::recurse_supplemental($cnum,$cdom,$suppmap,$suppcount,$errors);
	}
	&do_cache_new('suppcount',$hashid,$suppcount,600);
	}
	return $suppcount;
	}

#	#
# EXT resource caching routines	# EXT resource caching routines
#	#
Line 9502 sub EXT_cache_set {	Line 9783 sub EXT_cache_set {
# --------------------------------------------------------- Value of a Variable	# --------------------------------------------------------- Value of a Variable
sub EXT {	sub EXT {

my ($varname,$symbparm,$udom,$uname,$usection,$recurse)=@_;	my ($varname,$symbparm,$udom,$uname,$usection,$recurse,$cid)=@_;
unless ($varname) { return ''; }	unless ($varname) { return ''; }
#get real user name/domain, courseid and symb	#get real user name/domain, courseid and symb
my $courseid;	my $courseid;
Line 9617 sub EXT {	Line 9898 sub EXT {
if (!$symbparm) { $symbparm=&symbread(); }	if (!$symbparm) { $symbparm=&symbread(); }
}	}

if ($space eq 'title') {	if ($qualifier eq '') {
if (!$symbparm) { $symbparm = $env{'request.filename'}; }	if ($space eq 'title') {
return &gettitle($symbparm);	if (!$symbparm) { $symbparm = $env{'request.filename'}; }
}	return &gettitle($symbparm);
	}

if ($space eq 'map') {	if ($space eq 'map') {
my ($map) = &decode_symb($symbparm);	my ($map) = &decode_symb($symbparm);
return &symbread($map);	return &symbread($map);
}	}
if ($space eq 'filename') {	if ($space eq 'maptitle') {
if ($symbparm) {	my ($map) = &decode_symb($symbparm);
return &clutter((&decode_symb($symbparm))[2]);	return &gettitle($map);
	}
	if ($space eq 'filename') {
	if ($symbparm) {
	return &clutter((&decode_symb($symbparm))[2]);
	}
	return &hreflocation('',$env{'request.filename'});
}	}
return &hreflocation('',$env{'request.filename'});
}	if ((defined($courseid)) && ($courseid eq $env{'request.course.id'}) && $symbparm) {
	if ($space eq 'visibleparts') {
	my $navmap = Apache::lonnavmaps::navmap->new();
	my $item;
	if (ref($navmap)) {
	my $res = $navmap->getBySymb($symbparm);
	my $parts = $res->parts();
	if (ref($parts) eq 'ARRAY') {
	$item = join(',',@{$parts});
	}
	undef($navmap);
	}
	return $item;
	}
	}
	}

my ($section, $group, @groups);	my ($section, $group, @groups);
my ($courselevelm,$courselevel);	my ($courselevelm,$courselevel);
if ($symbparm && defined($courseid) &&	if (($courseid eq '') && ($cid)) {
$courseid eq $env{'request.course.id'}) {	$courseid = $cid;
	}
	if (($symbparm && $courseid) &&
	(($courseid eq $env{'request.course.id'}) \|\| ($courseid eq $cid))) {

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

Line 9883 sub metadata {	Line 10189 sub metadata {
# 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\|/bulletinboard$\|)) \|\|	($uri !~ m\|^adm/includes\|) && ($uri !~ m{/(smppg\|bulletinboard)$})) \|\|
($uri =~ m\|/$\|) \|\| ($uri =~ m\|/.meta$\|) \|\| ($uri =~ m{^/*uploaded/.+\.sequence$})) {	($uri =~ m\|/$\|) \|\| ($uri =~ m\|/.meta$\|) \|\| ($uri =~ m{^/*uploaded/.+\.sequence$})) {
return undef;	return undef;
}	}
Line 10261 sub gettitle {	Line 10567 sub gettitle {
return $title;	return $title;
}	}

sub getdocspath {
my ($symb) = @_;
my $path;
if ($symb) {
my ($mapurl,$id,$resurl) = &decode_symb($symb);
if ($resurl=~/\.(sequence\|page)$/) {
$mapurl=$resurl;
} elsif ($resurl eq 'adm/navmaps') {
$mapurl=$env{'course.'.$env{'request.course.id'}.'.url'};
}
my $mapresobj;
my $navmap = Apache::lonnavmaps::navmap->new();
if (ref($navmap)) {
$mapresobj = $navmap->getResourceByUrl($mapurl);
}
$mapurl=~s{^.*/([^/]+)\.(\w+)$}{$1};
my $type=$2;
if (ref($mapresobj)) {
my $pcslist = $mapresobj->map_hierarchy();
if ($pcslist ne '') {
foreach my $pc (split(/,/,$pcslist)) {
next if ($pc <= 1);
my $res = $navmap->getByMapPc($pc);
if (ref($res)) {
my $thisurl = $res->src();
$thisurl=~s{^.*/([^/]+)\.\w+$}{$1};
my $thistitle = $res->title();
$path .= '&'.
&Apache::lonhtmlcommon::entity_encode($thisurl).'&'.
&Apache::lonhtmlcommon::entity_encode($thistitle).
':'.$res->randompick().
':'.$res->randomout().
':'.$res->encrypted().
':'.$res->randomorder().
':'.$res->is_page();
}
}
}
$path =~ s/^\&//;
my $maptitle = $mapresobj->title();
if ($mapurl eq 'default') {
$maptitle = 'Main Course Documents';
}
$path .= ($path ne '')? '&' : ''.
&Apache::lonhtmlcommon::entity_encode($mapurl).'&'.
&Apache::lonhtmlcommon::entity_encode($maptitle).
':'.$mapresobj->randompick().
':'.$mapresobj->randomout().
':'.$mapresobj->encrypted().
':'.$mapresobj->randomorder().
':'.$mapresobj->is_page();
} else {
my $maptitle = &gettitle($mapurl);
my $ispage;
if ($mapurl =~ /\.page$/) {
$ispage = 1;
}
if ($mapurl eq 'default') {
$maptitle = 'Main Course Documents';
}
$path = &Apache::lonhtmlcommon::entity_encode($mapurl).'&'.
&Apache::lonhtmlcommon::entity_encode($maptitle).':::::'.$ispage;
}
unless ($mapurl eq 'default') {
$path = 'default&'.
&Apache::lonhtmlcommon::entity_encode('Main Course Documents').
':::::&'.$path;
}
}
return $path;
}

sub get_slot {	sub get_slot {
my ($which,$cnum,$cdom)=@_;	my ($which,$cnum,$cdom)=@_;
if (!$cnum \|\| !$cdom) {	if (!$cnum \|\| !$cdom) {
Line 10386 sub get_course_slots {	Line 10620 sub get_course_slots {
my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);	my %slots=&Apache::lonnet::dump('slots',$cdom,$cnum);
my ($tmp) = keys(%slots);	my ($tmp) = keys(%slots);
if ($tmp !~ /^(con_lost\|error\|no_such_host)/i) {	if ($tmp !~ /^(con_lost\|error\|no_such_host)/i) {
&Apache::lonnet::do_cache_new('allslots',$hashid,\%slots,600);	&do_cache_new('allslots',$hashid,\%slots,600);
return %slots;	return %slots;
}	}
}	}
Line 10496 sub symbverify {	Line 10730 sub symbverify {
$ids=$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 ($ids) {
Line 10512 sub symbverify {	Line 10746 sub symbverify {
if (ref($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;	$okay=1;
last;	last;
}	}
}	}
}	}
}	}
untie(%bighash);	untie(%bighash);
}	}
Line 10598 sub symbread {	Line 10832 sub symbread {
if ($env{$cache_str} ne '') {	if ($env{$cache_str} ne '') {
return $env{$cache_str};	return $env{$cache_str};
}	}
} else {	} else {
# no filename provided? try from environment	# no filename provided? try from environment
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 10831 sub rndseed {	Line 11065 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 11513 sub goodbye {	Line 11748 sub goodbye {
}	}

sub get_dns {	sub get_dns {
my ($url,$func,$ignore_cache) = @_;	my ($url,$func,$ignore_cache,$nocache,$hashref) = @_;
if (!$ignore_cache) {	if (!$ignore_cache) {
my ($content,$cached)=	my ($content,$cached)=
&Apache::lonnet::is_cached_new('dns',$url);	&Apache::lonnet::is_cached_new('dns',$url);
if ($cached) {	if ($cached) {
&$func($content);	&$func($content,$hashref);
return;	return;
}	}
}	}
Line 11543 sub get_dns {	Line 11778 sub get_dns {
delete($alldns{$dns});	delete($alldns{$dns});
next if ($response->is_error());	next if ($response->is_error());
my @content = split("\n",$response->content);	my @content = split("\n",$response->content);
&Apache::lonnet::do_cache_new('dns',$url,\@content,302460*60);	unless ($nocache) {
&$func(\@content);	&do_cache_new('dns',$url,\@content,302460*60);
	}
	&$func(\@content,$hashref);
return;	return;
}	}
close($config);	close($config);
Line 11552 sub get_dns {	Line 11789 sub get_dns {
&logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");	&logthis("unable to contact DNS defaulting to on disk file dns_$which.tab\n");
open($config,"<$perlvar{'lonTabDir'}/dns_$which.tab");	open($config,"<$perlvar{'lonTabDir'}/dns_$which.tab");
my @content = <$config>;	my @content = <$config>;
&$func(\@content);	&$func(\@content,$hashref);
	return;
	}

	# ------------------------------------------------------Get DNS checksums file
	sub parse_dns_checksums_tab {
	my ($lines,$hashref) = @_;
	my $machine_dom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
	my $loncaparev = &get_server_loncaparev($machine_dom);
	my ($release,$timestamp) = split(/\-/,$loncaparev);
	my (%chksum,%revnum);
	if (ref($lines) eq 'ARRAY') {
	chomp(@{$lines});
	my $version = shift(@{$lines});
	if ($version eq $release) {
	foreach my $line (@{$lines}) {
	my ($file,$version,$shasum) = split(/,/,$line);
	$chksum{$file} = $shasum;
	$revnum{$file} = $version;
	}
	if (ref($hashref) eq 'HASH') {
	%{$hashref} = (
	sums => \%chksum,
	versions => \%revnum,
	);
	}
	}
	}
return;	return;
}	}

	sub fetch_dns_checksums {
	my %checksums;
	my $machine_dom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
	my $loncaparev = &get_server_loncaparev($machine_dom);
	my ($release,$timestamp) = split(/\-/,$loncaparev);
	&get_dns("/adm/dns/checksums/$release",\&parse_dns_checksums_tab,1,1,
	\%checksums);
	return \%checksums;
	}

# ------------------------------------------------------------ Read domain file	# ------------------------------------------------------------ Read domain file
{	{
my $loaded;	my $loaded;
Line 11864 sub get_dns {	Line 12139 sub get_dns {
}	}
push(@{$iphost{$ip}},@{$name_to_host{$name}});	push(@{$iphost{$ip}},@{$name_to_host{$name}});
}	}
&Apache::lonnet::do_cache_new('iphost','iphost',	&do_cache_new('iphost','iphost',
[\%iphost,\%name_to_ip,\%lonid_to_ip],	[\%iphost,\%name_to_ip,\%lonid_to_ip],
486060);	486060);

return %iphost;	return %iphost;
}	}
Line 11922 sub get_dns {	Line 12197 sub get_dns {
}	}
$seen{$prim_ip} = 1;	$seen{$prim_ip} = 1;
}	}
return &Apache::lonnet::do_cache_new('internetnames',$lonid,\@idns,126060);	return &do_cache_new('internetnames',$lonid,\@idns,126060);
}	}

}	}

sub all_loncaparevs {	sub all_loncaparevs {
return qw(1.1 1.2 1.3 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 2.10);	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
	{
	sub load_loncaparevs {
	if (-e "$perlvar{'lonTabDir'}/loncaparevs.tab") {
	if (open(my $config,"<$perlvar{'lonTabDir'}/loncaparevs.tab")) {
	while (my $configline=<$config>) {
	chomp($configline);
	my ($hostid,$loncaparev)=split(/:/,$configline);
	$loncaparevs{$hostid}=$loncaparev;
	}
	close($config);
	}
	}
	}
	}

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


BEGIN {	BEGIN {

# ----------------------------------- Read loncapa.conf and loncapa_apache.conf	# ----------------------------------- Read loncapa.conf and loncapa_apache.conf
Line 12007 BEGIN {	Line 12315 BEGIN {
}	}

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

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

	&load_serverhomeIDs();

	# ---------------------------------------------------------- Read releaseslist XML
{	{
my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml';	my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml';
if (-e $file) {	if (-e $file) {
Line 12232 were new keys. I.E. 1:foo will become 1:	Line 12521 were new keys. I.E. 1:foo will become 1:

Calling convention:	Calling convention:

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

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

Line 12410 environment). If no custom name is defi	Line 12699 environment). If no custom name is defi

=item *	=item *

get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec) :	get_my_roles($uname,$udom,$context,$types,$roles,$roledoms,$withsec,$hidepriv) :
All arguments are optional. Returns a hash of a roles, either for	All arguments are optional. Returns a hash of a roles, either for
co-author/assistant author roles for a user's Construction Space	co-author/assistant author roles for a user's Construction Space
(default), or if $context is 'userroles', roles for the user himself,	(default), or if $context is 'userroles', roles for the user himself,
Line 12427 provided for types, will default to retu	Line 12716 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
have active Domain Coordinator or Super User roles.	have active Domain Coordinator role in course's domain or in additional
	domains (specified in 'Domains to check for privileged users' in course
	environment -- set via: Course Settings -> Classlists and staff listing).

	=item *

	privileged($username,$domain,$possdomains,$possroles) : returns 1 if user
	$username:$domain is a privileged user (e.g., Domain Coordinator or Super User)
	$possdomains and $possroles are optional array refs -- to domains to check and
	roles to check. If $possdomains is not specified, a dump will be done of the
	users' roles.db to check for a dc or su role in any domain. This can be
	time consuming if &privileged is called repeatedly (e.g., when displaying a
	classlist), so in such cases, supplying a $possdomains array is preferred, as
	this then allows &privileged_by_domain() to be used, which caches the identity
	of privileged users, eliminating the need for repeated calls to &dump().

	=item *

	privileged_by_domain($possdomains,$roles) : returns a hash of a hash of a hash,
	where the outer hash keys are domains specified in the $possdomains array ref,
	next inner hash keys are privileged roles specified in the $roles array ref,
	and the innermost hash contains key = value pairs for username:domain = end:start
	for active or future "privileged" users with that role in that domain. To avoid
	repeated dumps of domain roles -- via &get_domain_roles() -- contents of the
	innerhash are cached using priv_$role and $dom as the identifiers.

=back	=back

Line 12476 or when Autoupdate.pl is run by cron in	Line 12789 or when Autoupdate.pl is run by cron in
modifystudent	modifystudent

modify a student's enrollment and identification information.	modify a student's enrollment and identification information.
The course id is resolved based on the current users environment.	The course id is resolved based on the current user's environment.
This means the envoking user must be a course coordinator or otherwise	This means the invoking user must be a course coordinator or otherwise
associated with a course.	associated with a course.

This call is essentially a wrapper for lonnet::modifyuser and	This call is essentially a wrapper for lonnet::modifyuser and
Line 12527 Inputs:	Line 12840 Inputs:

=item B<$context> role change context (shown in User Management Logs display in a course)	=item B<$context> role change context (shown in User Management Logs display in a course)

=item B<$inststatus> institutional status of user - : separated string of escaped status types	=item B<$inststatus> institutional status of user - : separated string of escaped status types

	=item B<$credits> Number of credits student will earn from this class - only needs to be supplied if value needs to be different from default credits for class.

=back	=back

Line 12535 Inputs:	Line 12850 Inputs:

modify_student_enrollment	modify_student_enrollment

Change a students enrollment status in a class. The environment variable	Change a student's enrollment status in a class. The environment variable
'role.request.course' must be defined for this function to proceed.	'role.request.course' must be defined for this function to proceed.

Inputs:	Inputs:

=over 4	=over 4

=item $udom, students domain	=item $udom, student's domain

=item $uname, students name	=item $uname, student's name

=item $uid, students user id	=item $uid, student's user id

=item $first, students first name	=item $first, student's first name

=item $middle	=item $middle

Line 12572 Inputs:	Line 12887 Inputs:

=item $context	=item $context

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

=back	=back


Line 12628 If defined, the supplied username is use	Line 12945 If defined, the supplied username is use
resdata($name,$domain,$type,@which) : request for current parameter	resdata($name,$domain,$type,@which) : request for current parameter
setting for a specific $type, where $type is either 'course' or 'user',	setting for a specific $type, where $type is either 'course' or 'user',
@what should be a list of parameters to ask about. This routine caches	@what should be a list of parameters to ask about. This routine caches
answers for 5 minutes.	answers for 10 minutes.

=item *	=item *

Line 12637 data base, returning a hash that is keye	Line 12954 data base, returning a hash that is keye
values that are the resource value. I believe that the timestamps and	values that are the resource value. I believe that the timestamps and
versions are also returned.	versions are also returned.

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

=back	=back

=head2 Course Modification	=head2 Course Modification
Line 12696 resource. Expects the local filesystem p	Line 13017 resource. Expects the local filesystem p

=item *	=item *

EXT($varname,$symb,$udom,$uname) : evaluates and returns the value of	EXT($varname,$symb,$udom,$uname,$usection,$recurse,$cid) : evaluates
a vairety of different possible values, $varname should be a request	and returns the value of a variety of different possible values,
string, and the other parameters can be used to specify who and what	$varname should be a request string, and the other parameters can be
one is asking about.	used to specify who and what one is asking about. Ordinarily, $cid
	does not need to be specified, as it is retrived from
	$env{'request.course.id'}, but &Apache::lonnet::EXT() is called
	within lonuserstate::loadmap() when initializing a course, before
	$env{'request.course.id'} has been set, so it needs to be provided
	in that one case.

Possible values for $varname are environment.lastname (or other item	Possible values for $varname are environment.lastname (or other item
from the envirnment hash), user.name (or someother aspect about the	from the envirnment hash), user.name (or someother aspect about the
Line 12737 returns the data handle	Line 13063 returns the data handle

=item *	=item *

symbverify($symb,$thisfn,$ecstate) : verifies that $symb actually exists	symbverify($symb,$thisfn,$encstate) : verifies that $symb actually exists
and is a possible symb for the URL in $thisfn, and if is an encrypted	and is a possible symb for the URL in $thisfn, and if is an encrypted
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 12797 expirespread($uname,$udom,$stype,$usymb)	Line 13123 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 12811 when viewing in course context.	Line 13137 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 12977 server ($udom and $uhome are optional)	Line 13303 server ($udom and $uhome are optional)

=item *	=item *

get_domain_defaults($target_domain) : returns hash with defaults for	get_domain_defaults($target_domain,$ignore_cache) : returns hash with defaults
authentication and language in the domain. Keys are: auth_def, auth_arg_def,	for: authentication, language, quotas, timezone, date locale, and portal URL in
lang_def; corresponsing values are authentication type (internal, krb4, krb5,	the target domain.
or localauth), initial password or a kerberos realm, language (e.g., en-us).
Values are retrieved from cache (if current), or from domain's configuration.db	May also include additional key => value pairs for the following groups:
(if available), or lastly from values in lonTabs/dns_domain,tab,
or lonTabs/domain.tab.	=over

	=item
	disk quotas (MB allocated by default to portfolios and authoring spaces).

	=over

	=item defaultquota, authorquota

	=back

	=item
	tools (availability of aboutme page, blog, webDAV access for authoring spaces,
	portfolio for users).

	=over

	=item
	aboutme, blog, webdav, portfolio

	=back

	=item
	requestcourses: ability to request courses, and how requests are processed.

	=over

	=item
	official, unofficial, community, textbook

	=back

	=item
	inststatus: types of institutional affiliation, and order in which they are displayed.

	=over

	=item
	inststatustypes, inststatusorder, inststatusguest

	=back

	=item
	coursedefaults: can PDF forms can be created, default credits for courses, default quotas (MB)
	for course's uploaded content.

	=over

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

	=back

	=item
	usersessions: set options for hosting of your users in other domains, and hosting of users from other domains
	on your servers.

	=over

	=item
	remotesessions, hostedsessions

	=back

	=back

	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
	only the following domain defaults: auth_def, auth_arg_def, lang_def
	-- corresponding values are authentication type (internal, krb4, krb5,
	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
	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.

	Typical usage:

%domdefaults = &get_auth_defaults($target_domain);	%domdefaults = &get_domain_defaults($target_domain);

=back	=back

Line 13405 Returns:	Line 13807 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 13417 Args: (first three required; six others	Line 13819 Args: (first three required; six others
2. keyid (alphanumeric): name of temporary locking key in hash,	2. keyid (alphanumeric): name of temporary locking key in hash,
e.g., num, boardids	e.g., num, boardids

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

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

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

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

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

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

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

Returns:	Returns:

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

Removed from v.1.1172.2.15
changed lines
	Added in v.1.1256