--- loncom/lonnet/perl/lonnet.pm 2010/09/24 03:35:42 1.1056.4.9
+++ loncom/lonnet/perl/lonnet.pm 2010/07/26 21:52:19 1.1078
@@ -1,7 +1,7 @@
# The LearningOnline Network
# TCP networking package
#
-# $Id: lonnet.pm,v 1.1056.4.9 2010/09/24 03:35:42 raeburn Exp $
+# $Id: lonnet.pm,v 1.1078 2010/07/26 21:52:19 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 %loncaparevs %serverhomeIDs %needsrelease);
+ $_64bit %env %protocol %loncaparevs %serverhomeIDs);
my (%badServerCache, $memcache, %courselogs, %accesshash, %domainrolehash,
%userrolehash, $processmarker, $dumpcount, %coursedombuf,
@@ -222,7 +222,7 @@ sub get_server_loncaparev {
my @ids=¤t_machine_ids();
if (grep(/^\Q$lonhost\E$/,@ids)) {
$answer = $perlvar{'lonVersion'};
- if ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
+ if ($answer =~ /^[\'\"]?([\d.\-]+)[\'\"]?$/) {
$loncaparev = $1;
}
} else {
@@ -230,7 +230,7 @@ sub get_server_loncaparev {
if (($answer eq 'unknown_cmd') || ($answer eq 'con_lost')) {
if ($caller eq 'loncron') {
my $ua=new LWP::UserAgent;
- $ua->timeout(4);
+ $ua->timeout(20);
my $protocol = $protocol{$lonhost};
$protocol = 'http' if ($protocol ne 'https');
my $url = $protocol.'://'.&hostname($lonhost).'/adm/about.html';
@@ -238,14 +238,14 @@ sub get_server_loncaparev {
my $response=$ua->request($request);
unless ($response->is_error()) {
my $content = $response->content;
- if ($content =~ /<p>VERSION\:\s*([\w.\-]+)<\/p>/) {
+ if ($content =~ /<p>VERSION\:\s*([\d.\-]+)<\/p>/) {
$loncaparev = $1;
}
}
} else {
$loncaparev = $loncaparevs{$lonhost};
}
- } elsif ($answer =~ /^[\'\"]?([\w.\-]+)[\'\"]?$/) {
+ } elsif ($answer =~ /^[\'\"]?([\d.\-]+)[\'\"]?$/) {
$loncaparev = $1;
}
}
@@ -263,7 +263,7 @@ sub get_server_homeID {
}
my $cachetime = 12*3600;
my $serverhomeID;
- if ($caller eq 'loncron') {
+ if ($caller eq 'loncron') {
my @machine_ids = &machine_ids($hostname);
foreach my $id (@machine_ids) {
my $response = &reply('serverhomeID',$id);
@@ -724,30 +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 '.$checkserver);
- return 413;
- }
- return '';
-}
-
# ------------------------------ Find server with least workload from spare.tab
sub spareserver {
@@ -756,18 +732,8 @@ sub spareserver {
if ($userloadpercent !~ /\d/) { $userloadpercent=0; }
my $lowest_load=($loadpercent > $userloadpercent) ? $loadpercent
: $userloadpercent;
- my ($uint_dom,$remotesessions);
- if ($env{'user.domain'}) {
- my $uprimary_id = &Apache::lonnet::domain($env{'user.domain'},'primary');
- $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
- my %udomdefaults = &Apache::lonnet::get_domain_defaults($env{'user.domain'});
- $remotesessions = $udomdefaults{'remotesessions'};
- }
+
foreach my $try_server (@{ $spareid{'primary'} }) {
- if ($uint_dom) {
- next unless (&spare_can_host($env{'user.domain'},$uint_dom,
- $remotesessions,$try_server));
- }
($spare_server, $lowest_load) =
&compare_server_load($try_server, $spare_server, $lowest_load);
}
@@ -776,10 +742,6 @@ sub spareserver {
if (!$found_server) {
foreach my $try_server (@{ $spareid{'default'} }) {
- if ($uint_dom) {
- next unless (&spare_can_host($env{'user.domain'},$uint_dom,
- $remotesessions,$try_server));
- }
($spare_server, $lowest_load) =
&compare_server_load($try_server, $spare_server, $lowest_load);
}
@@ -792,7 +754,7 @@ sub spareserver {
}
if (defined($spare_server)) {
my $hostname = &hostname($spare_server);
- if (defined($hostname)) {
+ if (defined($hostname)) {
$spare_server = $protocol.'://'.$hostname;
}
}
@@ -807,7 +769,7 @@ sub compare_server_load {
my $userloadans = &reply('userload',$try_server);
if ($loadans !~ /\d/ && $userloadans !~ /\d/) {
- return; #didn't get a number from the server
+ return; #didn't get a number from the server
}
my $load;
@@ -1028,26 +990,6 @@ sub can_host_session {
return $canhost;
}
-sub spare_can_host {
- my ($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'});
- }
- return $canhost;
-}
-
# ---------------------- Find the homebase for a user from domain's lib servers
my %homecache;
@@ -3388,7 +3330,7 @@ sub get_domain_roles {
return %personnel;
}
-# ----------------------------------------------------------- Check out an item
+# ----------------------------------------------------------- Interval timing
sub get_first_access {
my ($type,$argsymb)=@_;
@@ -3424,91 +3366,6 @@ sub set_first_access {
return 'already_set';
}
-sub checkout {
- my ($symb,$tuname,$tudom,$tcrsid)=@_;
- my $now=time;
- my $lonhost=$perlvar{'lonHostID'};
- my $infostr=&escape(
- 'CHECKOUTTOKEN&'.
- $tuname.'&'.
- $tudom.'&'.
- $tcrsid.'&'.
- $symb.'&'.
- $now.'&'.$ENV{'REMOTE_ADDR'});
- my $token=&reply('tmpput:'.$infostr,$lonhost);
- if ($token=~/^error\:/) {
- &logthis("<font color=\"blue\">WARNING: ".
- "Checkout tmpput failed ".$tudom.' - '.$tuname.' - '.$symb.
- "</font>");
- return '';
- }
-
- $token=~s/^(\d+)\_.*\_(\d+)$/$1\*$2\*$lonhost/;
- $token=~tr/a-z/A-Z/;
-
- my %infohash=('resource.0.outtoken' => $token,
- 'resource.0.checkouttime' => $now,
- 'resource.0.outremote' => $ENV{'REMOTE_ADDR'});
-
- unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
- return '';
- } else {
- &logthis("<font color=\"blue\">WARNING: ".
- "Checkout cstore failed ".$tudom.' - '.$tuname.' - '.$symb.
- "</font>");
- }
-
- if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
- &escape('Checkout '.$infostr.' - '.
- $token)) ne 'ok') {
- return '';
- } else {
- &logthis("<font color=\"blue\">WARNING: ".
- "Checkout log failed ".$tudom.' - '.$tuname.' - '.$symb.
- "</font>");
- }
- return $token;
-}
-
-# ------------------------------------------------------------ Check in an item
-
-sub checkin {
- my $token=shift;
- my $now=time;
- my ($ta,$tb,$lonhost)=split(/\*/,$token);
- $lonhost=~tr/A-Z/a-z/;
- my $dtoken=$ta.'_'.&hostname($lonhost).'_'.$tb;
- $dtoken=~s/\W/\_/g;
- my ($dummy,$tuname,$tudom,$tcrsid,$symb,$chtim,$rmaddr)=
- split(/\&/,&unescape(&reply('tmpget:'.$dtoken,$lonhost)));
-
- unless (($tuname) && ($tudom)) {
- &logthis('Check in '.$token.' ('.$dtoken.') failed');
- return '';
- }
-
- unless (&allowed('mgr',$tcrsid)) {
- &logthis('Check in '.$token.' ('.$dtoken.') unauthorized: '.
- $env{'user.name'}.' - '.$env{'user.domain'});
- return '';
- }
-
- my %infohash=('resource.0.intoken' => $token,
- 'resource.0.checkintime' => $now,
- 'resource.0.inremote' => $ENV{'REMOTE_ADDR'});
-
- unless (&cstore(\%infohash,$symb,$tcrsid,$tudom,$tuname) eq 'ok') {
- return '';
- }
-
- if (&log($tudom,$tuname,&homeserver($tuname,$tudom),
- &escape('Checkin - '.$token)) ne 'ok') {
- return '';
- }
-
- return ($symb,$tuname,$tudom,$tcrsid);
-}
-
# --------------------------------------------- Set Expire Date for Spreadsheet
sub expirespread {
@@ -4047,44 +3904,6 @@ sub coursedescription {
return %returnhash;
}
-sub update_released_required {
- my ($needsrelease,$cdom,$cnum,$chome,$cid) = @_;
- if ($cdom eq '' || $cnum eq '' || $chome eq '' || $cid eq '') {
- $cid = $env{'request.course.id'};
- $cdom = $env{'course.'.$cid.'.domain'};
- $cnum = $env{'course.'.$cid.'.num'};
- $chome = $env{'course.'.$cid.'.home'};
- }
- if ($needsrelease) {
- my %curr_reqd_hash = &userenvironment($cdom,$cnum,'internal.releaserequired');
- my $needsupdate;
- if ($curr_reqd_hash{'internal.releaserequired'} eq '') {
- $needsupdate = 1;
- } else {
- my ($currmajor,$currminor) = split(/\./,$curr_reqd_hash{'internal.releaserequired'});
- my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
- if (($currmajor < $needsmajor) || ($currmajor == $needsmajor && $currminor < $needsminor)) {
- $needsupdate = 1;
- }
- }
- if ($needsupdate) {
- my %needshash = (
- 'internal.releaserequired' => $needsrelease,
- );
- my $putresult = &put('environment',\%needshash,$cdom,$cnum);
- if ($putresult eq 'ok') {
- &appenv({'course.'.$cid.'.internal.releaserequired' => $needsrelease});
- my %crsinfo = &courseiddump($cdom,'.',1,'.','.',$cnum,undef,undef,'.');
- if (ref($crsinfo{$cid}) eq 'HASH') {
- $crsinfo{$cid}{'releaserequired'} = $needsrelease;
- &courseidput($cdom,\%crsinfo,$chome,'notime');
- }
- }
- }
- }
- return;
-}
-
# -------------------------------------------------See if a user is privileged
sub privileged {
@@ -4253,7 +4072,7 @@ sub set_userprivs {
my $adv=0;
my %grouproles = ();
if (keys(%{$allgroups}) > 0) {
- my @groupkeys;
+ my @groupkeys;
foreach my $role (keys(%{$allroles})) {
push(@groupkeys,$role);
}
@@ -4329,7 +4148,7 @@ sub role_status {
my %userroles = (
'user.role.'.$$role.'.'.$$where => $$tstart.'.'.$$tend
);
- @rolecodes = ('cm');
+ @rolecodes = ('cm');
my $spec=$$role.'.'.$$where;
my ($tdummy,$tdomain,$trest)=split(/\//,$$where);
if ($$role =~ /^cr\//) {
@@ -4346,7 +4165,7 @@ sub role_status {
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 '' && $tnum ne '') {
+ if ($tdomain ne '' && $tnum ne '') {
foreach my $key (keys(%course_roles)) {
if ($key =~ /^\Q$tnum\E:\Q$tdomain\E:([^:]+):?([^:]*)/) {
my $crsrole = $1;
@@ -5029,7 +4848,7 @@ sub is_portfolio_file {
}
sub usertools_access {
- my ($uname,$udom,$tool,$action,$context,$userenvref,$domdefref,$is_advref) = @_;
+ my ($uname,$udom,$tool,$action,$context) = @_;
my ($access,%tools);
if ($context eq '') {
$context = 'tools';
@@ -5071,14 +4890,9 @@ sub usertools_access {
$toolstatus = $env{'environment.'.$context.'.'.$tool};
$inststatus = $env{'environment.inststatus'};
} else {
- if (ref($userenvref) eq 'HASH') {
- $toolstatus = $userenvref->{$context.'.'.$tool};
- $inststatus = $userenvref->{'inststatus'};
- } else {
- my %userenv = &userenvironment($udom,$uname,$context.'.'.$tool,'inststatus');
- $toolstatus = $userenv{$context.'.'.$tool};
- $inststatus = $userenv{'inststatus'};
- }
+ my %userenv = &userenvironment($udom,$uname,$context.'.'.$tool,'inststatus');
+ $toolstatus = $userenv{$context.'.'.$tool};
+ $inststatus = $userenv{'inststatus'};
}
if ($toolstatus ne '') {
@@ -5090,17 +4904,8 @@ sub usertools_access {
return $access;
}
- my ($is_adv,%domdef);
- if (ref($is_advref) eq 'HASH') {
- $is_adv = $is_advref->{'is_adv'};
- } else {
- $is_adv = &is_advanced_user($udom,$uname);
- }
- if (ref($domdefref) eq 'HASH') {
- %domdef = %{$domdefref};
- } else {
- %domdef = &get_domain_defaults($udom);
- }
+ my $is_adv = &is_advanced_user($udom,$uname);
+ my %domdef = &get_domain_defaults($udom);
if (ref($domdef{$tool}) eq 'HASH') {
if ($is_adv) {
if ($domdef{$tool}{'_LC_adv'} ne '') {
@@ -6813,7 +6618,7 @@ sub modifyuser {
}
&logthis('Call to modify user '.$udom.', '.$uname.', '.$uid.', '.
$umode.', '.$first.', '.$middle.', '.
- $last.', '.$gene.'(forceid: '.$forceid.'; candelete: '.$showcandelete.')'.
+ $last.', '.$gene.'(forceid: '.$forceid.'; candelete: '.$showcandelete.')'.
(defined($desiredhome) ? ' desiredhome = '.$desiredhome :
' desiredhome not specified').
' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
@@ -6959,7 +6764,7 @@ sub modifyuser {
return 'ok';
}
my $reply = &put('environment', \%names, $udom,$uname);
- if ($reply ne 'ok') {
+ if ($reply ne 'ok') {
return 'error: '.$reply;
}
my $sqlresult = &update_allusers_table($uname,$udom,\%names);
@@ -8497,6 +8302,7 @@ sub add_prefix_and_part {
# ---------------------------------------------------------------- Get metadata
my %metaentry;
+my %importedpartids;
sub metadata {
my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
$uri=&declutter($uri);
@@ -8523,6 +8329,10 @@ 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?
#
@@ -8606,27 +8416,55 @@ 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=($impfile=~/<part[^>]*id\s*=\s*[\"\']([^\"\']+)[\"\'][^>]*>/gs);
+ if ($#impfilepartids>=0) {
+# This problem had parts
+ $importedpartids{$token->[2]->{'id'}}=join(',',@impfilepartids);
+ } else {
+# Importing by turning a single problem into a problem part
+# It gets the import-tags ID as part-ID
+ $unikey=&add_prefix_and_part($prefix,$token->[2]->{'id'});
+ $importedpartids{$token->[2]->{'id'}}=$token->[2]->{'id'};
+ }
+ } else {
+# Normal import
+ $unikey=&add_prefix_and_part($prefix,$token->[2]->{'part'});
+ if (defined($token->[2]->{'id'})) {
+ $unikey.='_'.$token->[2]->{'id'};
+ }
+ }
+
if ($depthcount<20) {
- my $location=$parser->get_text('/import');
- my $dir=$filename;
- $dir=~s|[^/]*$||;
- $location=&filelocation($dir,$location);
my $metadata =
&metadata($uri,'keys', $location,$unikey,
$depthcount+1);
@@ -8634,8 +8472,16 @@ sub metadata {
$metaentry{':'.$meta}=$metaentry{':'.$meta};
$metathesekeys{$meta}=1;
}
- }
- } else {
+
+ }
+ } else {
+#
+# Not importing, some other kind of non-package, non-library start tag
+#
+ $unikey=$entry.&add_prefix_and_part($prefix,$token->[2]->{'part'});
+ if (defined($token->[2]->{'id'})) {
+ $unikey.='_'.$token->[2]->{'id'};
+ }
if (defined($token->[2]->{'name'})) {
$unikey.='_'.$token->[2]->{'name'};
}
@@ -8709,6 +8555,22 @@ sub metadata {
grep { ! $seen{$_} ++ } (split(',',$metaentry{':packages'}));
$metaentry{':packages'} = join(',',@uniq_packages);
+ if ($importedparts) {
+# We had imported parts and need to rebuild partorder
+ $metaentry{':partorder'}='';
+ $metathesekeys{'partorder'}=1;
+ for (my $index=0;$index<$#origfileimportpartids;$index+=2) {
+ if ($origfileimportpartids[$index] eq 'part') {
+# original part, part of the problem
+ $metaentry{':partorder'}.=','.$origfileimportpartids[$index+1];
+ } else {
+# we have imported parts at this position
+ $metaentry{':partorder'}.=','.$importedpartids{$origfileimportpartids[$index+1]};
+ }
+ }
+ $metaentry{':partorder'}=~s/^\,//;
+ }
+
$metaentry{':keys'} = join(',',keys(%metathesekeys));
&metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
$metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
@@ -10074,7 +9936,7 @@ sub get_dns {
}
sub unique_library {
- #2x reverse removes all hostnames that appear more than once
+ #2x reverse removes all hostnames that appear more than once
my %unique = reverse &all_library();
return reverse %unique;
}
@@ -10104,7 +9966,7 @@ sub get_dns {
sub get_unique_servers {
my %unique = reverse &get_servers(@_);
- return reverse %unique;
+ return reverse %unique;
}
sub host_domain {
@@ -10277,10 +10139,6 @@ sub get_dns {
}
-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);
-}
-
BEGIN {
# ----------------------------------- Read loncapa.conf and loncapa_apache.conf
@@ -10384,23 +10242,8 @@ BEGIN {
}
}
-{
- my $file = $Apache::lonnet::perlvar{'lonTabDir'}.'/releaseslist.xml';
- if (-e $file) {
- my $parser = HTML::LCParser->new($file);
- while (my $token = $parser->get_token()) {
- if ($token->[0] eq 'S') {
- my $item = $token->[1];
- my $name = $token->[2]{'name'};
- my $value = $token->[2]{'value'};
- if ($item ne '' && $name ne '' && $value ne '') {
- my $release = $parser->get_text();
- $release =~ s/(^\s*|\s*$ )//gx;
- $needsrelease{$item.':'.$name.':'.$value} = $release;
- }
- }
- }
- }
+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);
}
# ------------- set up temporary directory
@@ -10640,7 +10483,7 @@ $checkdefauth is optional (value is 1 if
authenticate user using default authentication method, and allow
account creation if username does not have account in the domain).
$clientcancheckhost is optional (value is 1 if checking whether the
- server can host will occur on the client side in lonauth.pm).
+ server can host will occur on the client side in lonauth.pm).
=item *
X<homeserver()>