--- loncom/lonnet/perl/lonnet.pm 2010/03/21 18:31:53 1.1057 +++ loncom/lonnet/perl/lonnet.pm 2010/07/20 02:42:47 1.1074 @@ -1,7 +1,7 @@ # The LearningOnline Network # TCP networking package # -# $Id: lonnet.pm,v 1.1057 2010/03/21 18:31:53 www Exp $ +# $Id: lonnet.pm,v 1.1074 2010/07/20 02:42:47 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -76,7 +76,7 @@ use HTTP::Date; use Image::Magick; use vars qw(%perlvar %spareid %pr %prp $memcache %packagetab $tmpdir - $_64bit %env %protocol); + $_64bit %env %protocol %loncaparevs %serverhomeIDs); my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash, %userrolehash, $processmarker, $dumpcount, %coursedombuf, @@ -196,7 +196,7 @@ sub get_server_timezone { } sub get_server_loncaparev { - my ($dom,$lonhost) = @_; + my ($dom,$lonhost,$ignore_cache,$caller) = @_; if (defined($lonhost)) { if (!defined(&hostname($lonhost))) { undef($lonhost); @@ -211,15 +211,74 @@ sub get_server_loncaparev { } } if (defined($lonhost)) { - my $cachetime = 24*3600; - my ($loncaparev,$cached)=&is_cached_new('serverloncaparev',$lonhost); + my $cachetime = 12*3600; + if (!$ignore_cache) { + my ($loncaparev,$cached)=&is_cached_new('serverloncaparev',$lonhost); + if (defined($cached)) { + return $loncaparev; + } + } + my ($answer,$loncaparev); + my @ids=¤t_machine_ids(); + if (grep(/^\Q$lonhost\E$/,@ids)) { + $answer = $perlvar{'lonVersion'}; + if ($answer =~ /^[\'\"]?([\d.\-]+)[\'\"]?$/) { + $loncaparev = $1; + } + } else { + $answer = &reply('serverloncaparev',$lonhost); + if (($answer eq 'unknown_cmd') || ($answer eq 'con_lost')) { + if ($caller eq 'loncron') { + my $ua=new LWP::UserAgent; + $ua->timeout(20); + my $protocol = $protocol{$lonhost}; + $protocol = 'http' if ($protocol ne 'https'); + my $url = $protocol.'://'.&hostname($lonhost).'/adm/about.html'; + my $request=new HTTP::Request('GET',$url); + my $response=$ua->request($request); + unless ($response->is_error()) { + my $content = $response->content; + if ($content =~ /
VERSION\:\s*([\d.\-]+)<\/p>/) {
+ $loncaparev = $1;
+ }
+ }
+ } else {
+ $loncaparev = $loncaparevs{$lonhost};
+ }
+ } elsif ($answer =~ /^[\'\"]?([\d.\-]+)[\'\"]?$/) {
+ $loncaparev = $1;
+ }
+ }
+ return &do_cache_new('serverloncaparev',$lonhost,$loncaparev,$cachetime);
+ }
+}
+
+sub get_server_homeID {
+ my ($hostname,$ignore_cache,$caller) = @_;
+ unless ($ignore_cache) {
+ my ($serverhomeID,$cached)=&is_cached_new('serverhomeID',$hostname);
if (defined($cached)) {
- return $loncaparev;
- } else {
- my $loncaparev = &reply('serverloncaparev',$lonhost);
- return &do_cache_new('serverloncaparev',$lonhost,$loncaparev,$cachetime);
+ return $serverhomeID;
+ }
+ }
+ my $cachetime = 12*3600;
+ my $serverhomeID;
+ if ($caller eq 'loncron') {
+ my @machine_ids = &machine_ids($hostname);
+ foreach my $id (@machine_ids) {
+ my $response = &reply('serverhomeID',$id);
+ unless (($response eq 'unknown_cmd') || ($response eq 'con_lost')) {
+ $serverhomeID = $response;
+ last;
+ }
+ }
+ if ($serverhomeID eq '') {
+ $serverhomeID = $machine_ids[-1];
}
+ } else {
+ $serverhomeID = $serverhomeIDs{$hostname};
}
+ return &do_cache_new('serverhomeID',$hostname,$serverhomeID,$cachetime);
}
# -------------------------------------------------- Non-critical communication
@@ -665,30 +724,6 @@ sub userload {
return $userloadpercent;
}
-# ------------------------------------------ Fight off request when overloaded
-
-sub overloaderror {
- my ($r,$checkserver)=@_;
- unless ($checkserver) { $checkserver=$perlvar{'lonHostID'}; }
- my $loadavg;
- if ($checkserver eq $perlvar{'lonHostID'}) {
- open(my $loadfile,'/proc/loadavg');
- $loadavg=<$loadfile>;
- $loadavg =~ s/\s.*//g;
- $loadavg = 100*$loadavg/$perlvar{'lonLoadLim'};
- close($loadfile);
- } else {
- $loadavg=&reply('load',$checkserver);
- }
- my $overload=$loadavg-100;
- if ($overload>0) {
- $r->err_headers_out->{'Retry-After'}=$overload;
- $r->log_error('Overload of '.$overload.' on '.$checkserver);
- return 413;
- }
- return '';
-}
-
# ------------------------------ Find server with least workload from spare.tab
sub spareserver {
@@ -734,7 +769,7 @@ sub compare_server_load {
my $userloadans = &reply('userload',$try_server);
if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
- next; #didn't get a number from the server
+ return; #didn't get a number from the server
}
my $load;
@@ -835,7 +870,7 @@ sub queryauthenticate {
# --------- Try to authenticate user from domain's lib servers (first this one)
sub authenticate {
- my ($uname,$upass,$udom,$checkdefauth)=@_;
+ my ($uname,$upass,$udom,$checkdefauth,$clientcancheckhost)=@_;
$upass=&escape($upass);
$uname= &LONCAPA::clean_username($uname);
my $uhome=&homeserver($uname,$udom,1);
@@ -858,7 +893,7 @@ sub authenticate {
return 'no_host';
}
}
- my $answer=reply("encrypt:auth:$udom:$uname:$upass:$checkdefauth",$uhome);
+ my $answer=reply("encrypt:auth:$udom:$uname:$upass:$checkdefauth:$clientcancheckhost",$uhome);
if ($answer eq 'authorized') {
if ($newhome) {
&logthis("User $uname at $udom authorized by $uhome, but needs account");
@@ -876,6 +911,64 @@ sub authenticate {
return 'no_host';
}
+sub can_host_session {
+ my ($udom,$lonhost,$remoterev,$remotesessions,$hostedsessions) = @_;
+ my $canhost = 1;
+ my $host_idn = &Apache::lonnet::internet_dom($lonhost);
+ if (ref($remotesessions) eq 'HASH') {
+ if (ref($remotesessions->{'excludedomain'}) eq 'ARRAY') {
+ if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'excludedomain'}})) {
+ $canhost = 0;
+ } else {
+ $canhost = 1;
+ }
+ }
+ if (ref($remotesessions->{'includedomain'}) eq 'ARRAY') {
+ if (grep(/^\Q$host_idn\E$/,@{$remotesessions->{'includedomain'}})) {
+ $canhost = 1;
+ } else {
+ $canhost = 0;
+ }
+ }
+ if ($canhost) {
+ if ($remotesessions->{'version'} ne '') {
+ my ($reqmajor,$reqminor) = ($remotesessions->{'version'} =~ /^(\d+)\.(\d+)$/);
+ if ($reqmajor ne '' && $reqminor ne '') {
+ if ($remoterev =~ /^\'?(\d+)\.(\d+)/) {
+ my $major = $1;
+ my $minor = $2;
+ if (($major < $reqmajor ) ||
+ (($major == $reqmajor) && ($minor < $reqminor))) {
+ $canhost = 0;
+ }
+ } else {
+ $canhost = 0;
+ }
+ }
+ }
+ }
+ }
+ if ($canhost) {
+ if (ref($hostedsessions) eq 'HASH') {
+ if (ref($hostedsessions->{'excludedomain'}) eq 'ARRAY') {
+ if (grep(/^\Q$udom\E$/,@{$hostedsessions->{'excludedomain'}})) {
+ $canhost = 0;
+ } else {
+ $canhost = 1;
+ }
+ }
+ if (ref($hostedsessions->{'includedomain'}) eq 'ARRAY') {
+ if (grep(/^\Q$udom\E$/,@{$hostedsessions->{'includedomain'}})) {
+ $canhost = 1;
+ } else {
+ $canhost = 0;
+ }
+ }
+ }
+ }
+ return $canhost;
+}
+
# ---------------------- Find the homebase for a user from domain's lib servers
my %homecache;
@@ -1352,7 +1445,7 @@ sub get_domain_defaults {
my %domconfig =
&Apache::lonnet::get_dom('configuration',['defaults','quotas',
'requestcourses','inststatus',
- 'coursedefaults'],$domain);
+ 'coursedefaults','usersessions'],$domain);
if (ref($domconfig{'defaults'}) eq 'HASH') {
$domdefaults{'lang_def'} = $domconfig{'defaults'}{'lang_def'};
$domdefaults{'auth_def'} = $domconfig{'defaults'}{'auth_def'};
@@ -1392,6 +1485,14 @@ sub get_domain_defaults {
$domdefaults{$item} = $domconfig{'coursedefaults'}{$item};
}
}
+ if (ref($domconfig{'usersessions'}) eq 'HASH') {
+ if (ref($domconfig{'usersessions'}{'remote'}) eq 'HASH') {
+ $domdefaults{'remotesessions'} = $domconfig{'usersessions'}{'remote'};
+ }
+ if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') {
+ $domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'};
+ }
+ }
&Apache::lonnet::do_cache_new('domdefaults',$domain,\%domdefaults,
$cachetime);
return %domdefaults;
@@ -3059,7 +3160,7 @@ sub courseiddump {
my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,
$coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok,
$selfenrollonly,$catfilter,$showhidden,$caller,$cloner,$cc_clone,
- $cloneonly,$createdbefore,$createdafter,$creationcontext)=@_;
+ $cloneonly,$createdbefore,$createdafter,$creationcontext,$domcloner)=@_;
my $as_hash = 1;
my %returnhash;
if (!$domfilter) { $domfilter=''; }
@@ -3081,7 +3182,8 @@ sub courseiddump {
$showhidden.':'.$caller.':'.&escape($cloner).':'.
&escape($cc_clone).':'.$cloneonly.':'.
&escape($createdbefore).':'.&escape($createdafter).':'.
- &escape($creationcontext),$tryserver);
+ &escape($creationcontext).':'.$domcloner,
+ $tryserver);
my @pairs=split(/\&/,$rep);
foreach my $item (@pairs) {
my ($key,$value)=split(/\=/,$item,2);
@@ -3943,23 +4045,36 @@ sub standard_roleprivs {
}
sub set_userprivs {
- my ($userroles,$allroles,$allgroups) = @_;
+ my ($userroles,$allroles,$allgroups,$groups_roles) = @_;
my $author=0;
my $adv=0;
my %grouproles = ();
if (keys(%{$allgroups}) > 0) {
+ my @groupkeys;
foreach my $role (keys(%{$allroles})) {
- my ($trole,$area,$sec,$extendedarea);
- if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) {
- $trole = $1;
- $area = $2;
- $sec = $3;
- $extendedarea = $area.$sec;
- if (exists($$allgroups{$area})) {
- foreach my $group (keys(%{$$allgroups{$area}})) {
- my $spec = $trole.'.'.$extendedarea;
- $grouproles{$spec.'.'.$area.'/'.$group} =
+ push(@groupkeys,$role);
+ }
+ if (ref($groups_roles) eq 'HASH') {
+ foreach my $key (keys(%{$groups_roles})) {
+ unless (grep(/^\Q$key\E$/,@groupkeys)) {
+ push(@groupkeys,$key);
+ }
+ }
+ }
+ if (@groupkeys > 0) {
+ foreach my $role (@groupkeys) {
+ my ($trole,$area,$sec,$extendedarea);
+ if ($role =~ m-^(\w+|cr/$match_domain/$match_username/\w+)\.(/$match_domain/$match_courseid)(/?\w*)\.-) {
+ $trole = $1;
+ $area = $2;
+ $sec = $3;
+ $extendedarea = $area.$sec;
+ if (exists($$allgroups{$area})) {
+ foreach my $group (keys(%{$$allgroups{$area}})) {
+ my $spec = $trole.'.'.$extendedarea;
+ $grouproles{$spec.'.'.$area.'/'.$group} =
$$allgroups{$area}{$group};
+ }
}
}
}
@@ -4006,26 +4121,58 @@ sub role_status {
if ($$tstart<$now) {
if ($$tstart && $$tstart>$refresh) {
if (($$where ne '') && ($$role ne '')) {
- my (%allroles,%allgroups,$group_privs);
+ my (%allroles,%allgroups,$group_privs,
+ %groups_roles,@rolecodes);
my %userroles = (
'user.role.'.$$role.'.'.$$where => $$tstart.'.'.$$tend
);
+ @rolecodes = ('cm');
my $spec=$$role.'.'.$$where;
my ($tdummy,$tdomain,$trest)=split(/\//,$$where);
if ($$role =~ /^cr\//) {
&custom_roleprivs(\%allroles,$$role,$tdomain,$trest,$spec,$$where);
+ push(@rolecodes,'cr');
} elsif ($$role eq 'gr') {
+ push(@rolecodes,$$role);
my %rolehash = &get('roles',[$$where.'_'.$$role],$env{'user.domain'},
$env{'user.name'});
- my $trole = split('_',$rolehash{$$where.'_'.$$role},1);
+ my ($trole) = split('_',$rolehash{$$where.'_'.$$role},2);
(undef,my $group_privs) = split(/\//,$trole);
$group_privs = &unescape($group_privs);
&group_roleprivs(\%allgroups,$$where,$group_privs,$$tend,$$tstart);
+ my %course_roles = &get_my_roles($env{'user.name'},$env{'user.domain'},'userroles',['active'],['cc','co','in','ta','ep','ad','st','cr'],[$tdomain],1);
+ if (keys(%course_roles) > 0) {
+ my ($tnum) = ($trest =~ /^($match_courseid)/);
+ if ($tdomain ne '' && $tnum ne '') {
+ foreach my $key (keys(%course_roles)) {
+ if ($key =~ /^\Q$tnum\E:\Q$tdomain\E:([^:]+):?([^:]*)/) {
+ my $crsrole = $1;
+ my $crssec = $2;
+ if ($crsrole =~ /^cr/) {
+ unless (grep(/^cr$/,@rolecodes)) {
+ push(@rolecodes,'cr');
+ }
+ } else {
+ unless(grep(/^\Q$crsrole\E$/,@rolecodes)) {
+ push(@rolecodes,$crsrole);
+ }
+ }
+ my $rolekey = $crsrole.'./'.$tdomain.'/'.$tnum;
+ if ($crssec ne '') {
+ $rolekey .= '/'.$crssec;
+ }
+ $rolekey .= './';
+ $groups_roles{$rolekey} = \@rolecodes;
+ }
+ }
+ }
+ }
} else {
+ push(@rolecodes,$$role);
&standard_roleprivs(\%allroles,$$role,$tdomain,$spec,$trest,$$where);
}
- my ($author,$adv)= &set_userprivs(\%userroles,\%allroles,\%allgroups);
- &appenv(\%userroles,[$$role,'cm']);
+ my ($author,$adv)= &set_userprivs(\%userroles,\%allroles,\%allgroups,\%groups_roles);
+ &appenv(\%userroles,\@rolecodes);
&log($env{'user.domain'},$env{'user.name'},$env{'user.home'},"Role ".$role);
}
}
@@ -4539,7 +4686,7 @@ sub get_portfolio_access {
my (%allgroups,%allroles);
my ($start,$end,$role,$sec,$group);
foreach my $envkey (%env) {
- if ($envkey =~ m-^user\.role\.(gr|cc|in|ta|ep|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) {
+ if ($envkey =~ m-^user\.role\.(gr|cc|co|in|ta|ep|ad|st)\./($match_domain)/($match_courseid)/?([^/]*)$-) {
my $cid = $2.'_'.$3;
if ($1 eq 'gr') {
$group = $4;
@@ -5727,8 +5874,8 @@ sub auto_validate_instcode {
$homeserver = &domain($cdom,'primary');
}
}
- my $response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'.
- &escape($instcode).':'.&escape($owner),$homeserver));
+ $response=&unescape(&reply('autovalidateinstcode:'.$cdom.':'.
+ &escape($instcode).':'.&escape($owner),$homeserver));
my ($outcome,$description) = map { &unescape($_); } split('&',$response,2);
return ($outcome,$description);
}
@@ -6439,12 +6586,18 @@ sub modifyuser {
my ($udom, $uname, $uid,
$umode, $upass, $first,
$middle, $last, $gene,
- $forceid, $desiredhome, $email, $inststatus)=@_;
+ $forceid, $desiredhome, $email, $inststatus, $candelete)=@_;
$udom= &LONCAPA::clean_domain($udom);
$uname=&LONCAPA::clean_username($uname);
+ my $showcandelete = 'none';
+ if (ref($candelete) eq 'ARRAY') {
+ if (@{$candelete} > 0) {
+ $showcandelete = join(', ',@{$candelete});
+ }
+ }
&logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
$umode.', '.$first.', '.$middle.', '.
- $last.', '.$gene.'(forceid: '.$forceid.')'.
+ $last.', '.$gene.'(forceid: '.$forceid.'; candelete: '.$showcandelete.')'.
(defined($desiredhome) ? ' desiredhome = '.$desiredhome :
' desiredhome not specified').
' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
@@ -6509,9 +6662,33 @@ sub modifyuser {
%names = @tmp;
}
#
-# Make sure to not trash student environment if instructor does not bother
-# to supply name and email information
-#
+# If name, email and/or uid are blank (e.g., because an uploaded file
+# of users did not contain them), do not overwrite existing values
+# unless field is in $candelete array ref.
+#
+
+ my @fields = ('firstname','middlename','lastname','generation',
+ 'permanentemail','id');
+ my %newvalues;
+ if (ref($candelete) eq 'ARRAY') {
+ foreach my $field (@fields) {
+ if (grep(/^\Q$field\E$/,@{$candelete})) {
+ if ($field eq 'firstname') {
+ $names{$field} = $first;
+ } elsif ($field eq 'middlename') {
+ $names{$field} = $middle;
+ } elsif ($field eq 'lastname') {
+ $names{$field} = $last;
+ } elsif ($field eq 'generation') {
+ $names{$field} = $gene;
+ } elsif ($field eq 'permanentemail') {
+ $names{$field} = $email;
+ } elsif ($field eq 'id') {
+ $names{$field} = $uid;
+ }
+ }
+ }
+ }
if ($first) { $names{'firstname'} = $first; }
if (defined($middle)) { $names{'middlename'} = $middle; }
if ($last) { $names{'lastname'} = $last; }
@@ -8080,6 +8257,7 @@ sub add_prefix_and_part {
# ---------------------------------------------------------------- Get metadata
my %metaentry;
+my %importedpartids;
sub metadata {
my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
$uri=&declutter($uri);
@@ -8106,6 +8284,10 @@ sub metadata {
if (defined($cached)) { return $result->{':'.$what}; }
}
{
+# Imported parts would go here
+ my %importedids=();
+ my @origfileimportpartids=();
+ my $importedparts=0;
#
# Is this a recursive call for a library?
#
@@ -8189,27 +8371,55 @@ sub metadata {
# This is not a package - some other kind of start tag
#
my $entry=$token->[1];
- my $unikey;
- if ($entry eq 'import') {
- $unikey='';
- } else {
- $unikey=$entry;
- }
- $unikey.=&add_prefix_and_part($prefix,$token->[2]->{'part'});
-
- if (defined($token->[2]->{'id'})) {
- $unikey.='_'.$token->[2]->{'id'};
- }
+ my $unikey='';
if ($entry eq 'import') {
#
# Importing a library here
#
+ my $location=$parser->get_text('/import');
+ my $dir=$filename;
+ $dir=~s|[^/]*$||;
+ $location=&filelocation($dir,$location);
+
+ my $importmode=$token->[2]->{'importmode'};
+ if ($importmode eq 'problem') {
+# Import as problem/response
+ $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
+ } elsif ($importmode eq 'part') {
+# Import as part(s)
+ $importedparts=1;
+# We need to get the original file and the imported file to get the part order correct
+# Good news: we do not need to worry about nested libraries, since parts cannot be nested
+# Load and inspect original file
+ if ($#origfileimportpartids<0) {
+ undef(%importedpartids);
+ my $origfilelocation=$perlvar{'lonDocRoot'}.&clutter($uri);
+ my $origfile=&getfile($origfilelocation);
+ @origfileimportpartids=($origfile=~/<(part|import)[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
+ }
+
+# Load and inspect imported file
+ my $impfile=&getfile($location);
+ my @impfilepartids=($impfile=~/