--- loncom/lonnet/perl/lonnet.pm	2014/12/05 15:15:12	1.1272
+++ loncom/lonnet/perl/lonnet.pm	2015/04/01 23:22:13	1.1279
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.1272 2014/12/05 15:15:12 droeschl Exp $
+# $Id: lonnet.pm,v 1.1279 2015/04/01 23:22:13 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -849,10 +849,8 @@ sub spareserver {
     if (ref($spareshash) eq 'HASH') {
         if (ref($spareshash->{'primary'}) eq 'ARRAY') {
             foreach my $try_server (@{ $spareshash->{'primary'} }) {
-                if ($uint_dom) {
-                    next unless (&spare_can_host($udom,$uint_dom,$remotesessions,
-                                                 $try_server));
-                }
+                next unless (&spare_can_host($udom,$uint_dom,$remotesessions,
+                                             $try_server));
 	        ($spare_server, $lowest_load) =
 	            &compare_server_load($try_server, $spare_server, $lowest_load);
             }
@@ -863,10 +861,8 @@ sub spareserver {
         if (!$found_server) {
             if (ref($spareshash->{'default'}) eq 'ARRAY') { 
 	        foreach my $try_server (@{ $spareshash->{'default'} }) {
-                    if ($uint_dom) {
-                        next unless (&spare_can_host($udom,$uint_dom,
-                                                     $remotesessions,$try_server));
-                    }
+                    next unless (&spare_can_host($udom,$uint_dom,
+                                                 $remotesessions,$try_server));
 	            ($spare_server, $lowest_load) =
 		        &compare_server_load($try_server, $spare_server, $lowest_load);
                 }
@@ -1178,19 +1174,27 @@ sub can_host_session {
 sub spare_can_host {
     my ($udom,$uint_dom,$remotesessions,$try_server)=@_;
     my $canhost=1;
-    my @intdoms;
-    my $internet_names = &Apache::lonnet::get_internet_names($try_server);
-    if (ref($internet_names) eq 'ARRAY') {
-        @intdoms = @{$internet_names};
-    }
-    unless (grep(/^\Q$uint_dom\E$/,@intdoms)) {
-        my $serverhomeID = &Apache::lonnet::get_server_homeID($try_server);
-        my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
-        my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
-        my $remoterev = &Apache::lonnet::get_server_loncaparev(undef,$try_server);
-        $canhost = &can_host_session($udom,$try_server,$remoterev,
-                                     $remotesessions,
-                                     $defdomdefaults{'hostedsessions'});
+    my $try_server_hostname = &hostname($try_server);
+    my $serverhomeID = &get_server_homeID($try_server_hostname);
+    my $serverhomedom = &host_domain($serverhomeID);
+    my %defdomdefaults = &get_domain_defaults($serverhomedom);
+    if (ref($defdomdefaults{'offloadnow'}) eq 'HASH') {
+        if ($defdomdefaults{'offloadnow'}{$try_server}) {
+            $canhost = 0;
+        }
+    }
+    if (($canhost) && ($uint_dom)) {
+        my @intdoms;
+        my $internet_names = &get_internet_names($try_server);
+        if (ref($internet_names) eq 'ARRAY') {
+            @intdoms = @{$internet_names};
+        }
+        unless (grep(/^\Q$uint_dom\E$/,@intdoms)) {
+            my $remoterev = &get_server_loncaparev(undef,$try_server);
+            $canhost = &can_host_session($udom,$try_server,$remoterev,
+                                         $remotesessions,
+                                         $defdomdefaults{'hostedsessions'});
+        }
     }
     return $canhost;
 }
@@ -2076,6 +2080,11 @@ sub get_domain_defaults {
     }
     if (ref($domconfig{'coursedefaults'}) eq 'HASH') {
         $domdefaults{'canuse_pdfforms'} = $domconfig{'coursedefaults'}{'canuse_pdfforms'};
+        $domdefaults{'usejsme'} = $domconfig{'coursedefaults'}{'usejsme'};
+        $domdefaults{'uselcmath'} = $domconfig{'coursedefaults'}{'uselcmath'};
+        if (ref($domconfig{'coursedefaults'}{'postsubmit'}) eq 'HASH') {
+            $domdefaults{'postsubmit'} = $domconfig{'coursedefaults'}{'postsubmit'}{'client'};
+        }
         foreach my $type (@coursetypes) {
             if (ref($domconfig{'coursedefaults'}{'coursecredits'}) eq 'HASH') {
                 unless ($type eq 'community') {
@@ -2085,6 +2094,12 @@ sub get_domain_defaults {
             if (ref($domconfig{'coursedefaults'}{'uploadquota'}) eq 'HASH') {
                 $domdefaults{$type.'quota'} = $domconfig{'coursedefaults'}{'uploadquota'}{$type};
             }
+            if ($domdefaults{'postsubmit'} eq 'on') {
+                if (ref($domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}) eq 'HASH') {
+                    $domdefaults{$type.'postsubtimeout'} = 
+                        $domconfig{'coursedefaults'}{'postsubmit'}{'timeout'}{$type}; 
+                }
+            }
         }
     }
     if (ref($domconfig{'usersessions'}) eq 'HASH') {
@@ -2094,6 +2109,9 @@ sub get_domain_defaults {
         if (ref($domconfig{'usersessions'}{'hosted'}) eq 'HASH') {
             $domdefaults{'hostedsessions'} = $domconfig{'usersessions'}{'hosted'};
         }
+        if (ref($domconfig{'usersessions'}{'offloadnow'}) eq 'HASH') {
+            $domdefaults{'offloadnow'} = $domconfig{'usersessions'}{'offloadnow'};
+        }
     }
     if (ref($domconfig{'selfenrollment'}) eq 'HASH') {
         if (ref($domconfig{'selfenrollment'}{'admin'}) eq 'HASH') {
@@ -5105,7 +5123,7 @@ sub privileged {
         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(/_/, $role);
             if (grep(/^\Q$trole\E$/,@{$roles})) {
                 return 1 unless ($tend && $tend < $now) 
@@ -5194,7 +5212,7 @@ sub rolesinit {
     my %allroles=();
     my %allgroups=();
 
-    for my $area (grep { ! /^rolesdef_/ } keys %rolesdump) {
+    for my $area (grep { ! /^rolesdef_/ } keys(%rolesdump)) {
         my $role = $rolesdump{$area};
         $area =~ s/\_\w\w$//;
 
@@ -6040,6 +6058,9 @@ sub get_timebased_id {
     } else {
         $error = "error: could not obtain lockfile\n";
         $dellock = 'ok';
+        if (($prefix eq 'paste') && ($namespace eq 'courseeditor') && ($keyid eq 'num')) {
+            $dellock = 'nolock';
+        }
     }
     return ($newid,$dellock,$error);
 }
@@ -9160,6 +9181,90 @@ sub files_not_in_path {
     return (@return_files);
 }
 
+#------------------------------Submitted/Handedback Portfolio Files Versioning
+ 
+sub portfiles_versioning {
+    my ($symb,$domain,$stu_name,$portfiles,$versioned_portfiles) = @_;
+    my $portfolio_root = '/userfiles/portfolio';
+    return unless ((ref($portfiles) eq 'ARRAY') && (ref($versioned_portfiles) eq 'ARRAY'));
+    foreach my $file (@{$portfiles}) {
+        &unmark_as_readonly($domain,$stu_name,[$symb,$env{'request.course.id'}],$file);
+        my ($directory,$answer_file) =($file =~ /^(.*?)([^\/]*)$/);
+        my ($answer_name,$answer_ver,$answer_ext) = &file_name_version_ext($answer_file);
+        my $getpropath = 1;
+        my ($dir_list,$listerror) = &dirlist($portfolio_root.$directory,$domain,
+                                             $stu_name,$getpropath);
+        my $version = &get_next_version($answer_name,$answer_ext,$dir_list);
+        my $new_answer = 
+            &version_selected_portfile($domain,$stu_name,$directory,$answer_file,$version);
+        if ($new_answer ne 'problem getting file') {
+            push(@{$versioned_portfiles}, $directory.$new_answer);
+            &mark_as_readonly($domain,$stu_name,[$directory.$new_answer],
+                              [$symb,$env{'request.course.id'},'graded']);
+        }
+    }
+}
+
+sub get_next_version {
+    my ($answer_name, $answer_ext, $dir_list) = @_;
+    my $version;
+    if (ref($dir_list) eq 'ARRAY') {
+        foreach my $row (@{$dir_list}) {
+            my ($file) = split(/\&/,$row,2);
+            my ($file_name,$file_version,$file_ext) =
+                &file_name_version_ext($file);
+            if (($file_name eq $answer_name) &&
+                ($file_ext eq $answer_ext)) {
+                     # gets here if filename and extension match,
+                     # regardless of version
+                if ($file_version ne '') {
+                    # a versioned file is found  so save it for later
+                    if ($file_version > $version) {
+                        $version = $file_version;
+                    }
+                }
+            }
+        }
+    }
+    $version ++;
+    return($version);
+}
+
+sub version_selected_portfile {
+    my ($domain,$stu_name,$directory,$file_name,$version) = @_;
+    my ($answer_name,$answer_ver,$answer_ext) =
+        &file_name_version_ext($file_name);
+    my $new_answer;
+    $env{'form.copy'} =
+        &getfile("/uploaded/$domain/$stu_name/portfolio$directory$file_name");
+    if($env{'form.copy'} eq '-1') {
+        $new_answer = 'problem getting file';
+    } else {
+        $new_answer = $answer_name.'.'.$version.'.'.$answer_ext;
+        my $copy_result = 
+            &finishuserfileupload($stu_name,$domain,'copy',
+                                  '/portfolio'.$directory.$new_answer);
+    }
+    undef($env{'form.copy'});
+    return ($new_answer);
+}
+
+sub file_name_version_ext {
+    my ($file)=@_;
+    my @file_parts = split(/\./, $file);
+    my ($name,$version,$ext);
+    if (@file_parts > 1) {
+        $ext=pop(@file_parts);
+        if (@file_parts > 1 && $file_parts[-1] =~ /^\d+$/) {
+            $version=pop(@file_parts);
+        }
+        $name=join('.',@file_parts);
+    } else {
+        $name=join('.',@file_parts);
+    }
+    return($name,$version,$ext);
+}
+
 #----------------------------------------------Get portfolio file permissions
 
 sub get_portfile_permissions {
@@ -9310,7 +9415,9 @@ sub make_public_indefinitely {
 
 sub automated_portfile_access {
     my ($accesstype,$addsref,$delsref,$info) = @_;
-    return unless (($accesstype eq 'public') || ($accesstype eq 'ip'));
+    unless (($accesstype eq 'public') || ($accesstype eq 'ip')) {
+        return 'invalid';
+    }
     my %urls;
     if (ref($addsref) eq 'ARRAY') {
         foreach my $requrl (@{$addsref}) {
@@ -10611,7 +10718,7 @@ sub metadata {
 
 	$metaentry{':keys'} = join(',',keys(%metathesekeys));
 	&metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
-	$metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
+	$metaentry{':allpossiblekeys'}=join(',',keys(%metathesekeys));
 	&do_cache_new('meta',$uri,\%metaentry,$cachetime);
 # this is the end of "was not already recently cached
     }