--- loncom/lonnet/perl/lonnet.pm 2004/09/02 18:01:52 1.538
+++ loncom/lonnet/perl/lonnet.pm 2005/03/10 19:10:30 1.606
@@ -1,7 +1,7 @@
# The LearningOnline Network
# TCP networking package
#
-# $Id: lonnet.pm,v 1.538 2004/09/02 18:01:52 albertel Exp $
+# $Id: lonnet.pm,v 1.606 2005/03/10 19:10:30 matthew Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -35,23 +35,24 @@ use HTTP::Headers;
use HTTP::Date;
# use Date::Parse;
use vars
-qw(%perlvar %hostname %homecache %badServerCache %hostip %iphost %spareid %hostdom
- %libserv %pr %prp %metacache %packagetab %titlecache %courseresversioncache %resversioncache
+qw(%perlvar %hostname %badServerCache %iphost %spareid %hostdom
+ %libserv %pr %prp $memcache %packagetab
%courselogs %accesshash %userrolehash $processmarker $dumpcount
- %coursedombuf %coursenumbuf %coursehombuf %coursedescrbuf %courseinstcodebuf %courseresdatacache
- %userresdatacache %usectioncache %domaindescription %domain_auth_def %domain_auth_arg_def
- %domain_lang_def %domain_city %domain_longi %domain_lati $tmpdir);
+ %coursedombuf %coursenumbuf %coursehombuf %coursedescrbuf %courseinstcodebuf %courseownerbuf
+ %domaindescription %domain_auth_def %domain_auth_arg_def
+ %domain_lang_def %domain_city %domain_longi %domain_lati $tmpdir $_64bit);
use IO::Socket;
use GDBM_File;
use Apache::Constants qw(:common :http);
use HTML::LCParser;
use Fcntl qw(:flock);
-use Apache::loncoursedata;
use Apache::lonlocal;
-use Storable qw(lock_store lock_nstore lock_retrieve freeze thaw);
-use Time::HiRes();
+use Storable qw(lock_store lock_nstore lock_retrieve freeze thaw nfreeze);
+use Time::HiRes qw( gettimeofday tv_interval );
+use Cache::Memcached;
my $readit;
+my $max_connection_retries = 10; # Or some such value.
=pod
@@ -116,14 +117,40 @@ sub logperm {
sub subreply {
my ($cmd,$server)=@_;
my $peerfile="$perlvar{'lonSockDir'}/$server";
- my $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
- Type => SOCK_STREAM,
- Timeout => 10)
- or return "con_lost";
- print $client "$cmd\n";
- my $answer=<$client>;
- if (!$answer) { $answer="con_lost"; }
- chomp($answer);
+ #
+ # With loncnew process trimming, there's a timing hole between lonc server
+ # process exit and the master server picking up the listen on the AF_UNIX
+ # socket. In that time interval, a lock file will exist:
+
+ my $lockfile=$peerfile.".lock";
+ while (-e $lockfile) { # Need to wait for the lockfile to disappear.
+ sleep(1);
+ }
+ # At this point, either a loncnew parent is listening or an old lonc
+ # or loncnew child is listening so we can connect or everything's dead.
+ #
+ # We'll give the connection a few tries before abandoning it. If
+ # connection is not possible, we'll con_lost back to the client.
+ #
+ my $client;
+ for (my $retries = 0; $retries < $max_connection_retries; $retries++) {
+ $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
+ Type => SOCK_STREAM,
+ Timeout => 10);
+ if($client) {
+ last; # Connected!
+ }
+ sleep(1); # Try again later if failed connection.
+ }
+ my $answer;
+ if ($client) {
+ print $client "$cmd\n";
+ $answer=<$client>;
+ if (!$answer) { $answer="con_lost"; }
+ chomp($answer);
+ } else {
+ $answer = 'con_lost'; # Failed connection.
+ }
return $answer;
}
@@ -131,22 +158,6 @@ sub reply {
my ($cmd,$server)=@_;
unless (defined($hostname{$server})) { return 'no_such_host'; }
my $answer=subreply($cmd,$server);
- if ($answer eq 'con_lost') {
- #sleep 5;
- #$answer=subreply($cmd,$server);
- #if ($answer eq 'con_lost') {
- # &logthis("Second attempt con_lost on $server");
- # my $peerfile="$perlvar{'lonSockDir'}/$server";
- # my $client=IO::Socket::UNIX->new(Peer =>"$peerfile",
- # Type => SOCK_STREAM,
- # Timeout => 10)
- # or return "con_lost";
- # &logthis("Killing socket");
- # print $client "close_connection_exit\n";
- #sleep 5;
- # $answer=subreply($cmd,$server);
- #}
- }
if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
&logthis("<font color=blue>WARNING:".
" $cmd to $server returned $answer</font>");
@@ -194,11 +205,8 @@ sub critical {
}
my $answer=reply($cmd,$server);
if ($answer eq 'con_lost') {
- my $pingreply=reply('ping',$server);
&reconlonc("$perlvar{'lonSockDir'}/$server");
- my $pongreply=reply('pong',$server);
- &logthis("Ping/Pong for $server: $pingreply/$pongreply");
- $answer=reply($cmd,$server);
+ my $answer=reply($cmd,$server);
if ($answer eq 'con_lost') {
my $now=time;
my $middlename=$cmd;
@@ -434,7 +442,7 @@ sub overloaderror {
if ($overload>0) {
$r->err_headers_out->{'Retry-After'}=$overload;
$r->log_error('Overload of '.$overload.' on '.$checkserver);
- return 409;
+ return 413;
}
return '';
}
@@ -551,12 +559,12 @@ sub authenticate {
# ---------------------- Find the homebase for a user from domain's lib servers
+my %homecache;
sub homeserver {
my ($uname,$udom,$ignoreBadCache)=@_;
my $index="$uname:$udom";
- my ($result,$cached)=&is_cached(\%homecache,$index,'home',86400);
- if (defined($cached)) { return $result; }
+ if (exists($homecache{$index})) { return $homecache{$index}; }
my $tryserver;
foreach $tryserver (keys %libserv) {
next if ($ignoreBadCache ne 'true' &&
@@ -564,7 +572,7 @@ sub homeserver {
if ($hostdom{$tryserver} eq $udom) {
my $answer=reply("home:$udom:$uname",$tryserver);
if ($answer eq 'found') {
- return &do_cache(\%homecache,$index,$tryserver,'home');
+ return $homecache{$index}=$tryserver;
} elsif ($answer eq 'no_host') {
$badServerCache{$tryserver}=1;
}
@@ -769,8 +777,14 @@ sub validate_access_key {
sub getsection {
my ($udom,$unam,$courseid)=@_;
+ my $cachetime=1800;
$courseid=~s/\_/\//g;
$courseid=~s/^(\w)/\/$1/;
+
+ my $hashid="$udom:$unam:$courseid";
+ my ($result,$cached)=&is_cached_new('getsection',$hashid);
+ if (defined($cached)) { return $result; }
+
my %Pending;
my %Expired;
#
@@ -795,200 +809,113 @@ sub getsection {
if ($key eq $courseid.'_st') { $section=''; }
my ($dummy,$end,$start)=split(/\_/,&unescape($value));
my $now=time;
- if (defined($end) && ($now > $end)) {
+ if (defined($end) && $end && ($now > $end)) {
$Expired{$end}=$section;
next;
}
- if (defined($start) && ($now < $start)) {
+ if (defined($start) && $start && ($now < $start)) {
$Pending{$start}=$section;
next;
}
- return $section;
+ return &do_cache_new('getsection',$hashid,$section,$cachetime);
}
#
# Presumedly there will be few matching roles from the above
# loop and the sorting time will be negligible.
if (scalar(keys(%Pending))) {
my ($time) = sort {$a <=> $b} keys(%Pending);
- return $Pending{$time};
+ return &do_cache_new('getsection',$hashid,$Pending{$time},$cachetime);
}
if (scalar(keys(%Expired))) {
my @sorted = sort {$a <=> $b} keys(%Expired);
my $time = pop(@sorted);
- return $Expired{$time};
+ return &do_cache_new('getsection',$hashid,$Expired{$time},$cachetime);
}
- return '-1';
+ return &do_cache_new('getsection',$hashid,'-1',$cachetime);
}
-
-my $disk_caching_disabled=1;
-
-sub devalidate_cache {
- my ($cache,$id,$name) = @_;
- delete $$cache{$id.'.time'};
- delete $$cache{$id};
- if ($disk_caching_disabled) { return; }
- my $filename=$perlvar{'lonDaemons'}.'/tmp/lonnet_internal_cache_'.$name.".db";
- open(DB,"$filename.lock");
- flock(DB,LOCK_EX);
- my %hash;
- if (tie(%hash,'GDBM_File',$filename,&GDBM_WRCREAT(),0640)) {
- eval <<'EVALBLOCK';
- delete($hash{$id});
- delete($hash{$id.'.time'});
-EVALBLOCK
- if ($@) {
- &logthis("<font color='red'>devalidate_cache blew up :$@:$name</font>");
- unlink($filename);
- }
- } else {
- if (-e $filename) {
- &logthis("Unable to tie hash (devalidate cache): $name");
- unlink($filename);
- }
- }
- untie(%hash);
- flock(DB,LOCK_UN);
- close(DB);
-}
-
-sub is_cached {
- my ($cache,$id,$name,$time) = @_;
- if (!$time) { $time=300; }
- if (!exists($$cache{$id.'.time'})) {
- &load_cache_item($cache,$name,$id);
- }
- if (!exists($$cache{$id.'.time'})) {
-# &logthis("Didn't find $id");
- return (undef,undef);
- } else {
- if (time-($$cache{$id.'.time'})>$time) {
-# &logthis("Devalidating $id - ".time-($$cache{$id.'.time'}));
- &devalidate_cache($cache,$id,$name);
- return (undef,undef);
- }
- }
- return ($$cache{$id},1);
-}
-
-sub do_cache {
- my ($cache,$id,$value,$name) = @_;
- $$cache{$id.'.time'}=time;
- $$cache{$id}=$value;
-# &logthis("Caching $id as :$value:");
- &save_cache_item($cache,$name,$id);
- # do_cache implictly return the set value
- $$cache{$id};
-}
-
-sub save_cache_item {
- my ($cache,$name,$id)=@_;
- if ($disk_caching_disabled) { return; }
- my $starttime=&Time::HiRes::time();
-# &logthis("Saving :$name:$id");
- my %hash;
- my $filename=$perlvar{'lonDaemons'}.'/tmp/lonnet_internal_cache_'.$name.".db";
- open(DB,"$filename.lock");
- flock(DB,LOCK_EX);
- if (tie(%hash,'GDBM_File',$filename,&GDBM_WRCREAT(),0640)) {
- eval <<'EVALBLOCK';
- $hash{$id.'.time'}=$$cache{$id.'.time'};
- $hash{$id}=freeze({'item'=>$$cache{$id}});
-EVALBLOCK
- if ($@) {
- &logthis("<font color='red'>save_cache blew up :$@:$name</font>");
- unlink($filename);
- }
- } else {
- if (-e $filename) {
- &logthis("Unable to tie hash (save cache item): $name ($!)");
- unlink($filename);
- }
- }
- untie(%hash);
- flock(DB,LOCK_UN);
- close(DB);
-# &logthis("save_cache_item $name took ".(&Time::HiRes::time()-$starttime));
-}
-
-sub load_cache_item {
- my ($cache,$name,$id)=@_;
- if ($disk_caching_disabled) { return; }
- my $starttime=&Time::HiRes::time();
-# &logthis("Before Loading $name for $id size is ".scalar(%$cache));
- my %hash;
- my $filename=$perlvar{'lonDaemons'}.'/tmp/lonnet_internal_cache_'.$name.".db";
- open(DB,"$filename.lock");
- flock(DB,LOCK_SH);
- if (tie(%hash,'GDBM_File',$filename,&GDBM_READER(),0640)) {
- eval <<'EVALBLOCK';
- if (!%$cache) {
- my $count;
- while (my ($key,$value)=each(%hash)) {
- $count++;
- if ($key =~ /\.time$/) {
- $$cache{$key}=$value;
- } else {
- my $hashref=thaw($value);
- $$cache{$key}=$hashref->{'item'};
- }
- }
-# &logthis("Initial load: $count");
- } else {
- my $hashref=thaw($hash{$id});
- $$cache{$id}=$hashref->{'item'};
- $$cache{$id.'.time'}=$hash{$id.'.time'};
- }
-EVALBLOCK
- if ($@) {
- &logthis("<font color='red'>load_cache blew up :$@:$name</font>");
- unlink($filename);
- }
- } else {
- if (-e $filename) {
- &logthis("Unable to tie hash (load cache item): $name ($!)");
- unlink($filename);
- }
- }
- untie(%hash);
- flock(DB,LOCK_UN);
- close(DB);
-# &logthis("After Loading $name size is ".scalar(%$cache));
-# &logthis("load_cache_item $name took ".(&Time::HiRes::time()-$starttime));
+sub save_cache {
+ &purge_remembered();
}
-sub usection {
- my ($udom,$unam,$courseid)=@_;
- my $hashid="$udom:$unam:$courseid";
-
- my ($result,$cached)=&is_cached(\%usectioncache,$hashid,'usection');
- if (defined($cached)) { return $result; }
- $courseid=~s/\_/\//g;
- $courseid=~s/^(\w)/\/$1/;
- foreach (split(/\&/,&reply('dump:'.$udom.':'.$unam.':roles',
- &homeserver($unam,$udom)))) {
- my ($key,$value)=split(/\=/,$_);
- $key=&unescape($key);
- if ($key=~/^\Q$courseid\E(?:\/)*(\w+)*\_st$/) {
- my $section=$1;
- if ($key eq $courseid.'_st') { $section=''; }
- my ($dummy,$end,$start)=split(/\_/,&unescape($value));
- my $now=time;
- my $notactive=0;
- if ($start) {
- if ($now<$start) { $notactive=1; }
- }
- if ($end) {
- if ($now>$end) { $notactive=1; }
- }
- unless ($notactive) {
- return &do_cache(\%usectioncache,$hashid,$section,'usection');
- }
- }
+my $to_remember=-1;
+my %remembered;
+my %accessed;
+my $kicks=0;
+my $hits=0;
+sub devalidate_cache_new {
+ my ($name,$id,$debug) = @_;
+ if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
+ $id=&escape($name.':'.$id);
+ $memcache->delete($id);
+ delete($remembered{$id});
+ delete($accessed{$id});
+}
+
+sub is_cached_new {
+ my ($name,$id,$debug) = @_;
+ $id=&escape($name.':'.$id);
+ if (exists($remembered{$id})) {
+ if ($debug) { &Apache::lonnet::logthis("Earyl return $id of $remembered{$id} "); }
+ $accessed{$id}=[&gettimeofday()];
+ $hits++;
+ return ($remembered{$id},1);
+ }
+ my $value = $memcache->get($id);
+ if (!(defined($value))) {
+ if ($debug) { &Apache::lonnet::logthis("getting $id is not defined"); }
+ return (undef,undef);
}
- return &do_cache(\%usectioncache,$hashid,'-1','usection');
+ if ($value eq '__undef__') {
+ if ($debug) { &Apache::lonnet::logthis("getting $id is __undef__"); }
+ $value=undef;
+ }
+ &make_room($id,$value,$debug);
+ if ($debug) { &Apache::lonnet::logthis("getting $id is $value"); }
+ return ($value,1);
+}
+
+sub do_cache_new {
+ my ($name,$id,$value,$time,$debug) = @_;
+ $id=&escape($name.':'.$id);
+ my $setvalue=$value;
+ if (!defined($setvalue)) {
+ $setvalue='__undef__';
+ }
+ if ($debug) { &Apache::lonnet::logthis("Setting $id to $value"); }
+ $memcache->set($id,$setvalue,$time);
+ # need to make a copy of $value
+ #&make_room($id,$value,$debug);
+ return $value;
+}
+
+sub make_room {
+ my ($id,$value,$debug)=@_;
+ $remembered{$id}=$value;
+ if ($to_remember<0) { return; }
+ $accessed{$id}=[&gettimeofday()];
+ if (scalar(keys(%remembered)) <= $to_remember) { return; }
+ my $to_kick;
+ my $max_time=0;
+ foreach my $other (keys(%accessed)) {
+ if (&tv_interval($accessed{$other}) > $max_time) {
+ $to_kick=$other;
+ $max_time=&tv_interval($accessed{$other});
+ }
+ }
+ delete($remembered{$to_kick});
+ delete($accessed{$to_kick});
+ $kicks++;
+ if ($debug) { &logthis("kicking $to_kick $max_time $kicks\n"); }
+ return;
+}
+
+sub purge_remembered {
+ #&logthis("Tossing ".scalar(keys(%remembered)));
+ #&logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
+ undef(%remembered);
+ undef(%accessed);
}
-
# ------------------------------------- Read an entry from a user's environment
sub userenvironment {
@@ -1026,7 +953,7 @@ sub getversion {
sub currentversion {
my $fname=shift;
- my ($result,$cached)=&is_cached(\%resversioncache,$fname,'resversion',600);
+ my ($result,$cached)=&is_cached_new('resversion',$fname);
if (defined($cached)) { return $result; }
my $author=$fname;
$author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
@@ -1039,7 +966,7 @@ sub currentversion {
if (($answer eq 'con_lost') || ($answer eq 'rejected')) {
return -1;
}
- return &do_cache(\%resversioncache,$fname,$answer,'resversion');
+ return &do_cache_new('resversion',$fname,$answer,600);
}
# ----------------------------- Subscribe to a resource, return URL if possible
@@ -1067,27 +994,27 @@ sub subscribe {
sub repcopy {
my $filename=shift;
$filename=~s/\/+/\//g;
- if ($filename=~m|^/home/httpd/html/adm/|) { return OK; }
- if ($filename=~m|^/home/httpd/html/lonUsers/|) { return OK; }
+ if ($filename=~m|^/home/httpd/html/adm/|) { return 'OK'; }
+ if ($filename=~m|^/home/httpd/html/lonUsers/|) { return 'OK'; }
if ($filename=~m|^/home/httpd/html/userfiles/| or
$filename=~m|^/*uploaded/|) {
return &repcopy_userfile($filename);
}
$filename=~s/[\n\r]//g;
my $transname="$filename.in.transfer";
- if ((-e $filename) || (-e $transname)) { return OK; }
+ if ((-e $filename) || (-e $transname)) { return 'OK'; }
my $remoteurl=subscribe($filename);
if ($remoteurl =~ /^con_lost by/) {
&logthis("Subscribe returned $remoteurl: $filename");
- return HTTP_SERVICE_UNAVAILABLE;
+ return 'HTTP_SERVICE_UNAVAILABLE';
} elsif ($remoteurl eq 'not_found') {
#&logthis("Subscribe returned not_found: $filename");
- return HTTP_NOT_FOUND;
+ return 'HTTP_NOT_FOUND';
} elsif ($remoteurl =~ /^rejected by/) {
&logthis("Subscribe returned $remoteurl: $filename");
- return FORBIDDEN;
+ return 'FORBIDDEN';
} elsif ($remoteurl eq 'directory') {
- return OK;
+ return 'OK';
} else {
my $author=$filename;
$author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
@@ -1098,7 +1025,7 @@ sub repcopy {
my $path="/$parts[1]/$parts[2]/$parts[3]/$parts[4]";
if ($path ne "$perlvar{'lonDocRoot'}/res") {
&logthis("Malconfiguration for replication: $filename");
- return HTTP_BAD_REQUEST;
+ return 'HTTP_BAD_REQUEST';
}
my $count;
for ($count=5;$count<$#parts;$count++) {
@@ -1115,7 +1042,7 @@ sub repcopy {
my $message=$response->status_line;
&logthis("<font color=blue>WARNING:"
." LWP get: $message: $filename</font>");
- return HTTP_SERVICE_UNAVAILABLE;
+ return 'HTTP_SERVICE_UNAVAILABLE';
} else {
if ($remoteurl!~/\.meta$/) {
my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
@@ -1127,7 +1054,7 @@ sub repcopy {
}
}
rename($transname,$filename);
- return OK;
+ return 'OK';
}
}
}
@@ -1136,10 +1063,12 @@ sub repcopy {
# ------------------------------------------------ Get server side include body
sub ssi_body {
my ($filelink,%form)=@_;
+ if (! exists($form{'LONCAPA_INTERNAL_no_discussion'})) {
+ $form{'LONCAPA_INTERNAL_no_discussion'}='true';
+ }
my $output=($filelink=~/^http\:/?&externalssi($filelink):
&ssi($filelink,%form));
- $output=~
- s/\/\/ BEGIN LON\-CAPA Internal.+\/\/ END LON\-CAPA Internal\s//gs;
+ $output=~s|//(\s*<!--)? BEGIN LON-CAPA Internal.+// END LON-CAPA Internal\s*(-->)?\s||gs;
$output=~s/^.*?\<body[^\>]*\>//si;
$output=~s/(.*)\<\/body\s*\>.*?$/$1/si;
return $output;
@@ -1284,6 +1213,9 @@ sub clean_filename {
$fname=~s/\s+/\_/g;
# Replace all other weird characters by nothing
$fname=~s/[^\w\.\-]//g;
+# Replace all .\d. sequences with _\d. so they no longer look like version
+# numbers
+ $fname=~s/\.(\d+)(?=\.)/_$1/g;
return $fname;
}
@@ -1354,13 +1286,13 @@ sub finishuserfileupload {
}
# Save the file
{
- #&Apache::lonnet::logthis("Saving to $filepath $file");
- open(my $fh,'>'.$filepath.'/'.$file);
- print $fh $ENV{'form.'.$formname};
- close($fh);
+ open(FH,'>'.$filepath.'/'.$file);
+ print FH $ENV{'form.'.$formname};
+ close(FH);
}
# Notify homeserver to grep it
#
+ &Apache::lonnet::logthis("fetching ".$path.$file);
my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
if ($fetchresult eq 'ok') {
#
@@ -1438,12 +1370,12 @@ sub flushcourselogs {
if ($courseidbuffer{$coursehombuf{$crsid}}) {
$courseidbuffer{$coursehombuf{$crsid}}.='&'.
&escape($crsid).'='.&escape($coursedescrbuf{$crsid}).
- '='.&escape($courseinstcodebuf{$crsid});
+ ':'.&escape($courseinstcodebuf{$crsid}).':'.&escape($courseownerbuf{$crsid});
} else {
$courseidbuffer{$coursehombuf{$crsid}}=
&escape($crsid).'='.&escape($coursedescrbuf{$crsid}).
- '='.&escape($courseinstcodebuf{$crsid});
- }
+ ':'.&escape($courseinstcodebuf{$crsid}).':'.&escape($courseownerbuf{$crsid});
+ }
}
#
# Write course id database (reverse lookup) to homeserver of courses
@@ -1518,6 +1450,8 @@ sub courselog {
$ENV{'course.'.$ENV{'request.course.id'}.'.description'};
$courseinstcodebuf{$ENV{'request.course.id'}}=
$ENV{'course.'.$ENV{'request.course.id'}.'.internal.coursecode'};
+ $courseownerbuf{$ENV{'request.course.id'}}=
+ $ENV{'course.'.$ENV{'request.course.id'}.'.internal.courseowner'};
if (defined $courselogs{$ENV{'request.course.id'}}) {
$courselogs{$ENV{'request.course.id'}}.='&'.$what;
} else {
@@ -1534,11 +1468,23 @@ sub courseacclog {
my $what=$fnsymb.':'.$ENV{'user.name'}.':'.$ENV{'user.domain'};
if ($fnsymb=~/(problem|exam|quiz|assess|survey|form|page)$/) {
$what.=':POST';
+ # FIXME: Probably ought to escape things....
foreach (keys %ENV) {
if ($_=~/^form\.(.*)/) {
$what.=':'.$1.'='.$ENV{$_};
}
}
+ } elsif ($fnsymb =~ m:^/adm/searchcat:) {
+ # FIXME: We should not be depending on a form parameter that someone
+ # editing lonsearchcat.pm might change in the future.
+ if ($ENV{'form.phase'} eq 'course_search') {
+ $what.= ':POST';
+ # FIXME: Probably ought to escape things....
+ foreach my $element ('courseexp','crsfulltext','crsrelated',
+ 'crsdiscuss') {
+ $what.=':'.$element.'='.$ENV{'form.'.$element};
+ }
+ }
}
&courselog($what);
}
@@ -1590,6 +1536,7 @@ sub get_course_adv_roles {
if (($tend) && ($tend<$now)) { next; }
if (($tstart) && ($now<$tstart)) { next; }
my ($role,$username,$domain,$section)=split(/\:/,$_);
+ if ($username eq '' || $domain eq '') { next; }
if ((&privileged($username,$domain)) &&
(!$nothide{$username.':'.$domain})) { next; }
my $key=&plaintext($role);
@@ -1661,7 +1608,7 @@ sub courseidput {
}
sub courseiddump {
- my ($domfilter,$descfilter,$sincefilter,$hostidflag,$hostidref)=@_;
+ my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,$hostidflag,$hostidref)=@_;
my %returnhash=();
unless ($domfilter) { $domfilter=''; }
foreach my $tryserver (keys %libserv) {
@@ -1669,7 +1616,8 @@ sub courseiddump {
if ((!$domfilter) || ($hostdom{$tryserver} eq $domfilter)) {
foreach (
split(/\&/,&reply('courseiddump:'.$hostdom{$tryserver}.':'.
- $sincefilter.':'.&escape($descfilter),
+ $sincefilter.':'.&escape($descfilter).':'.
+ &escape($instcodefilter).':'.&escape($ownerfilter),
$tryserver))) {
my ($key,$value)=split(/\=/,$_);
if (($key) && ($value)) {
@@ -1690,19 +1638,27 @@ sub get_first_access {
my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
if ($argsymb) { $symb=$argsymb; }
my ($map,$id,$res)=&decode_symb($symb);
- if ($type eq 'map') { $res=$map; }
- my %times=&get('firstaccesstimes',[$res],$udom,$uname);
- return $times{$res};
+ if ($type eq 'map') {
+ $res=&symbread($map);
+ } else {
+ $res=$symb;
+ }
+ my %times=&get('firstaccesstimes',["$courseid\0$res"],$udom,$uname);
+ return $times{"$courseid\0$res"};
}
sub set_first_access {
my ($type)=@_;
my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
my ($map,$id,$res)=&decode_symb($symb);
- if ($type eq 'map') { $res=$map; }
- my $firstaccess=&get_first_access($type);
+ if ($type eq 'map') {
+ $res=&symbread($map);
+ } else {
+ $res=$symb;
+ }
+ my $firstaccess=&get_first_access($type,$symb);
if (!$firstaccess) {
- return &put('firstaccesstimes',{$res=>time},$udom,$uname);
+ return &put('firstaccesstimes',{"$courseid\0$res"=>time},$udom,$uname);
}
return 'already_set';
}
@@ -1760,7 +1716,7 @@ sub checkin {
my $now=time;
my ($ta,$tb,$lonhost)=split(/\*/,$token);
$lonhost=~tr/A-Z/a-z/;
- my $dtoken=$ta.'_'.$hostip{$lonhost}.'_'.$tb;
+ my $dtoken=$ta.'_'.$hostname{$lonhost}.'_'.$tb;
$dtoken=~s/\W/\_/g;
my ($dummy,$tuname,$tudom,$tcrsid,$symb,$chtim,$rmaddr)=
split(/\&/,&unescape(&reply('tmpget:'.$dtoken,$lonhost)));
@@ -1819,6 +1775,7 @@ sub devalidate {
# - the student level sheet of this user in course's homespace
# - the assessment level sheet for this resource
# for this user in user's homespace
+ # - current conditional state info
my $key=$uname.':'.$udom.':';
my $status=
&del('nohist_calculatedsheets',
@@ -1833,6 +1790,7 @@ sub devalidate {
$uname.' at '.$udom.' for '.
$symb.': '.$status);
}
+ &delenv('user.state.'.$cid);
}
}
@@ -2041,9 +1999,11 @@ sub tmpreset {
$namespace=~s/\//\_/g;
$namespace=~s/\W//g;
- #FIXME needs to do something for /pub resources
if (!$domain) { $domain=$ENV{'user.domain'}; }
if (!$stuname) { $stuname=$ENV{'user.name'}; }
+ if ($domain eq 'public' && $stuname eq 'public') {
+ $stuname=$ENV{'REMOTE_ADDR'};
+ }
my $path=$perlvar{'lonDaemons'}.'/tmp';
my %hash;
if (tie(%hash,'GDBM_File',
@@ -2076,9 +2036,11 @@ sub tmpstore {
}
$namespace=~s/\//\_/g;
$namespace=~s/\W//g;
-#FIXME needs to do something for /pub resources
if (!$domain) { $domain=$ENV{'user.domain'}; }
if (!$stuname) { $stuname=$ENV{'user.name'}; }
+ if ($domain eq 'public' && $stuname eq 'public') {
+ $stuname=$ENV{'REMOTE_ADDR'};
+ }
my $now=time;
my %hash;
my $path=$perlvar{'lonDaemons'}.'/tmp';
@@ -2090,7 +2052,7 @@ sub tmpstore {
my $allkeys='';
foreach my $key (keys(%$storehash)) {
$allkeys.=$key.':';
- $hash{"$version:$symb:$key"}=$$storehash{$key};
+ $hash{"$version:$symb:$key"}=&freeze_escape($$storehash{$key});
}
$hash{"$version:$symb:timestamp"}=$now;
$allkeys.='timestamp';
@@ -2117,10 +2079,12 @@ sub tmprestore {
$symb=escape($symb);
if (!$namespace) { $namespace=$ENV{'request.state'}; }
- #FIXME needs to do something for /pub resources
+
if (!$domain) { $domain=$ENV{'user.domain'}; }
if (!$stuname) { $stuname=$ENV{'user.name'}; }
-
+ if ($domain eq 'public' && $stuname eq 'public') {
+ $stuname=$ENV{'REMOTE_ADDR'};
+ }
my %returnhash;
$namespace=~s/\//\_/g;
$namespace=~s/\W//g;
@@ -2138,8 +2102,8 @@ sub tmprestore {
my $key;
$returnhash{"$scope:keys"}=$vkeys;
foreach $key (@keys) {
- $returnhash{"$scope:$key"}=$hash{"$scope:$symb:$key"};
- $returnhash{"$key"}=$hash{"$scope:$symb:$key"};
+ $returnhash{"$scope:$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
+ $returnhash{"$key"}=&thaw_unescape($hash{"$scope:$symb:$key"});
}
}
if (!(untie(%hash))) {
@@ -2180,7 +2144,7 @@ sub store {
my $namevalue='';
foreach (keys %$storehash) {
- $namevalue.=escape($_).'='.escape($$storehash{$_}).'&';
+ $namevalue.=&escape($_).'='.&freeze_escape($$storehash{$_}).'&';
}
$namevalue=~s/\&$//;
&courselog($symb.':'.$stuname.':'.$domain.':STORE:'.$namevalue);
@@ -2216,7 +2180,7 @@ sub cstore {
my $namevalue='';
foreach (keys %$storehash) {
- $namevalue.=escape($_).'='.escape($$storehash{$_}).'&';
+ $namevalue.=&escape($_).'='.&freeze_escape($$storehash{$_}).'&';
}
$namevalue=~s/\&$//;
&courselog($symb.':'.$stuname.':'.$domain.':CSTORE:'.$namevalue);
@@ -2250,7 +2214,7 @@ sub restore {
my %returnhash=();
foreach (split(/\&/,$answer)) {
my ($name,$value)=split(/\=/,$_);
- $returnhash{&unescape($name)}=&unescape($value);
+ $returnhash{&unescape($name)}=&thaw_unescape($value);
}
my $version;
for ($version=1;$version<=$returnhash{'version'};$version++) {
@@ -2306,7 +2270,7 @@ sub privileged {
my $now=time;
if ($rolesdump ne '') {
foreach (split(/&/,$rolesdump)) {
- if ($_!~/^rolesdef\&/) {
+ if ($_!~/^rolesdef_/) {
my ($area,$role)=split(/=/,$_);
$area=~s/\_\w\w$//;
my ($trole,$tend,$tstart)=split(/_/,$role);
@@ -2333,105 +2297,37 @@ sub rolesinit {
my $rolesdump=reply("dump:$domain:$username:roles",$authhost);
if (($rolesdump eq 'con_lost') || ($rolesdump eq '')) { return ''; }
my %allroles=();
- my %thesepriv=();
my $now=time;
my $userroles="user.login.time=$now\n";
- my $thesestr;
if ($rolesdump ne '') {
foreach (split(/&/,$rolesdump)) {
- if ($_!~/^rolesdef\&/) {
+ if ($_!~/^rolesdef_/) {
my ($area,$role)=split(/=/,$_);
- $area=~s/\_\w\w$//;
- my ($trole,$tend,$tstart)=split(/_/,$role);
- $userroles.='user.role.'.$trole.'.'.$area.'='.
- $tstart.'.'.$tend."\n";
-# log the associated role with the area
- &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
- if ($tend!=0) {
- if ($tend<$now) {
- $trole='';
- }
- }
- if ($tstart!=0) {
- if ($tstart>$now) {
- $trole='';
- }
- }
+ $area=~s/\_\w\w$//;
+
+ my ($trole,$tend,$tstart);
+ if ($role=~/^cr/) {
+ ($trole,my $trest)=($role=~m|^(cr/\w+/\w+/[a-zA-Z0-9]+)_(.*)$|);
+ ($tend,$tstart)=split('_',$trest);
+ } else {
+ ($trole,$tend,$tstart)=split(/_/,$role);
+ }
+ $userroles.=&set_arearole($trole,$area,$tstart,$tend,$domain,$username);
+ if (($tend!=0) && ($tend<$now)) { $trole=''; }
+ if (($tstart!=0) && ($tstart>$now)) { $trole=''; }
if (($area ne '') && ($trole ne '')) {
my $spec=$trole.'.'.$area;
my ($tdummy,$tdomain,$trest)=split(/\//,$area);
if ($trole =~ /^cr\//) {
- my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
- my $homsvr=homeserver($rauthor,$rdomain);
- if ($hostname{$homsvr} ne '') {
- my ($rdummy,$roledef)=
- &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
-
- if (($rdummy ne 'con_lost') && ($roledef ne '')) {
- my ($syspriv,$dompriv,$coursepriv)=
- split(/\_/,$roledef);
- if (defined($syspriv)) {
- $allroles{'cm./'}.=':'.$syspriv;
- $allroles{$spec.'./'}.=':'.$syspriv;
- }
- if ($tdomain ne '') {
- if (defined($dompriv)) {
- $allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
- $allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
- }
- if ($trest ne '') {
- if (defined($coursepriv)) {
- $allroles{'cm.'.$area}.=':'.$coursepriv;
- $allroles{$spec.'.'.$area}.=':'.$coursepriv;
- }
- }
- }
- }
- }
+ &custom_roleprivs(\%allroles,$trole,$tdomain,$trest,$spec,$area);
} else {
- if (defined($pr{$trole.':s'})) {
- $allroles{'cm./'}.=':'.$pr{$trole.':s'};
- $allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
- }
- if ($tdomain ne '') {
- if (defined($pr{$trole.':d'})) {
- $allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
- $allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
- }
- if ($trest ne '') {
- if (defined($pr{$trole.':c'})) {
- $allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
- $allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
- }
- }
- }
+ &standard_roleprivs(\%allroles,$trole,$tdomain,$spec,$trest,$area);
}
}
}
}
- my $adv=0;
- my $author=0;
- foreach (keys %allroles) {
- %thesepriv=();
- if (($_!~/^st/) && ($_!~/^ta/) && ($_!~/^cm/)) { $adv=1; }
- if (($_=~/^au/) || ($_=~/^ca/)) { $author=1; }
- foreach (split(/:/,$allroles{$_})) {
- if ($_ ne '') {
- my ($privilege,$restrictions)=split(/&/,$_);
- if ($restrictions eq '') {
- $thesepriv{$privilege}='F';
- } else {
- if ($thesepriv{$privilege} ne 'F') {
- $thesepriv{$privilege}.=$restrictions;
- }
- }
- }
- }
- $thesestr='';
- foreach (keys %thesepriv) { $thesestr.=':'.$_.'&'.$thesepriv{$_}; }
- $userroles.='user.priv.'.$_.'='.$thesestr."\n";
- }
+ my ($author,$adv) = &set_userprivs(\$userroles,\%allroles);
$userroles.='user.adv='.$adv."\n".
'user.author='.$author."\n";
$ENV{'user.adv'}=$adv;
@@ -2439,6 +2335,84 @@ sub rolesinit {
return $userroles;
}
+sub set_arearole {
+ my ($trole,$area,$tstart,$tend,$domain,$username) = @_;
+# log the associated role with the area
+ &userrolelog($trole,$username,$domain,$area,$tstart,$tend);
+ return 'user.role.'.$trole.'.'.$area.'='.$tstart.'.'.$tend."\n";
+}
+
+sub custom_roleprivs {
+ my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
+ my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
+ my $homsvr=homeserver($rauthor,$rdomain);
+ if ($hostname{$homsvr} ne '') {
+ my ($rdummy,$roledef)=
+ &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
+ if (($rdummy ne 'con_lost') && ($roledef ne '')) {
+ my ($syspriv,$dompriv,$coursepriv)=split(/\_/,$roledef);
+ if (defined($syspriv)) {
+ $$allroles{'cm./'}.=':'.$syspriv;
+ $$allroles{$spec.'./'}.=':'.$syspriv;
+ }
+ if ($tdomain ne '') {
+ if (defined($dompriv)) {
+ $$allroles{'cm./'.$tdomain.'/'}.=':'.$dompriv;
+ $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$dompriv;
+ }
+ if (($trest ne '') && (defined($coursepriv))) {
+ $$allroles{'cm.'.$area}.=':'.$coursepriv;
+ $$allroles{$spec.'.'.$area}.=':'.$coursepriv;
+ }
+ }
+ }
+ }
+}
+
+
+sub standard_roleprivs {
+ my ($allroles,$trole,$tdomain,$spec,$trest,$area) = @_;
+ if (defined($pr{$trole.':s'})) {
+ $$allroles{'cm./'}.=':'.$pr{$trole.':s'};
+ $$allroles{$spec.'./'}.=':'.$pr{$trole.':s'};
+ }
+ if ($tdomain ne '') {
+ if (defined($pr{$trole.':d'})) {
+ $$allroles{'cm./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
+ $$allroles{$spec.'./'.$tdomain.'/'}.=':'.$pr{$trole.':d'};
+ }
+ if (($trest ne '') && (defined($pr{$trole.':c'}))) {
+ $$allroles{'cm.'.$area}.=':'.$pr{$trole.':c'};
+ $$allroles{$spec.'.'.$area}.=':'.$pr{$trole.':c'};
+ }
+ }
+}
+
+sub set_userprivs {
+ my ($userroles,$allroles) = @_;
+ my $author=0;
+ my $adv=0;
+ foreach (keys %{$allroles}) {
+ my %thesepriv=();
+ if (($_=~/^au/) || ($_=~/^ca/)) { $author=1; }
+ foreach (split(/:/,$$allroles{$_})) {
+ if ($_ ne '') {
+ my ($privilege,$restrictions)=split(/&/,$_);
+ if ($restrictions eq '') {
+ $thesepriv{$privilege}='F';
+ } elsif ($thesepriv{$privilege} ne 'F') {
+ $thesepriv{$privilege}.=$restrictions;
+ }
+ if ($thesepriv{'adv'} eq 'F') { $adv=1; }
+ }
+ }
+ my $thesestr='';
+ foreach (keys %thesepriv) { $thesestr.=':'.$_.'&'.$thesepriv{$_}; }
+ $$userroles.='user.priv.'.$_.'='.$thesestr."\n";
+ }
+ return ($author,$adv);
+}
+
# --------------------------------------------------------------- get interface
sub get {
@@ -2460,7 +2434,7 @@ sub get {
my %returnhash=();
my $i=0;
foreach (@$storearr) {
- $returnhash{$_}=unescape($pairs[$i]);
+ $returnhash{$_}=&thaw_unescape($pairs[$i]);
$i++;
}
return %returnhash;
@@ -2499,7 +2473,7 @@ sub dump {
my %returnhash=();
foreach (@pairs) {
my ($key,$value)=split(/=/,$_);
- $returnhash{unescape($key)}=unescape($value);
+ $returnhash{unescape($key)}=&thaw_unescape($value);
}
return %returnhash;
}
@@ -2545,7 +2519,7 @@ sub currentdump {
my ($key,$value)=split(/=/,$_);
my ($symb,$param) = split(/:/,$key);
$returnhash{&unescape($symb)}->{&unescape($param)} =
- &unescape($value);
+ &thaw_unescape($value);
}
}
return %returnhash;
@@ -2611,7 +2585,7 @@ sub put {
my $uhome=&homeserver($uname,$udomain);
my $items='';
foreach (keys %$storehash) {
- $items.=&escape($_).'='.&escape($$storehash{$_}).'&';
+ $items.=&escape($_).'='.&freeze_escape($$storehash{$_}).'&';
}
$items=~s/\&$//;
return &reply("put:$udomain:$uname:$namespace:$items",$uhome);
@@ -2631,7 +2605,7 @@ sub putstore {
my $key = $1.':keys:'.$2;
$allitems{$key} .= $3.':';
}
- $items.=$_.'='.&escape($$storehash{$_}).'&';
+ $items.=$_.'='.&freeze_escape($$storehash{$_}).'&';
}
foreach (keys %allitems) {
$allitems{$_} =~ s/\:$//;
@@ -2650,7 +2624,7 @@ sub cput {
my $uhome=&homeserver($uname,$udomain);
my $items='';
foreach (keys %$storehash) {
- $items.=escape($_).'='.escape($$storehash{$_}).'&';
+ $items.=escape($_).'='.&freeze_escape($$storehash{$_}).'&';
}
$items=~s/\&$//;
return &critical("put:$udomain:$uname:$namespace:$items",$uhome);
@@ -2673,7 +2647,7 @@ sub eget {
my %returnhash=();
my $i=0;
foreach (@$storearr) {
- $returnhash{$_}=unescape($pairs[$i]);
+ $returnhash{$_}=&thaw_unescape($pairs[$i]);
$i++;
}
return %returnhash;
@@ -2716,11 +2690,13 @@ sub customaccess {
# ------------------------------------------------- Check for a user privilege
sub allowed {
- my ($priv,$uri)=@_;
+ my ($priv,$uri,$symb)=@_;
$uri=&deversion($uri);
my $orguri=$uri;
$uri=&declutter($uri);
-
+
+
+
if (defined($ENV{'allowed.'.$priv})) { return $ENV{'allowed.'.$priv}; }
# Free bre access to adm and meta resources
if (((($uri=~/^adm\//) && ($uri !~ m|/bulletinboard$|))
@@ -2728,6 +2704,13 @@ sub allowed {
return 'F';
}
+# Free bre access to user's own portfolio contents
+ my ($space,$domain,$name,$dir)=split('/',$uri);
+ if (('uploaded' eq $space) && ($ENV{'user.name'} eq $name) &&
+ ($ENV{'user.domain'} eq $domain) && ('portfolio' eq $dir)) {
+ return 'F';
+ }
+
# Free bre to public access
if ($priv eq 'bre') {
@@ -2988,7 +2971,7 @@ sub allowed {
if ($thisallowed=~/X/) {
if ($ENV{'acc.randomout'}) {
- my $symb=&symbread($uri,1);
+ if (!$symb) { $symb=&symbread($uri,1); }
if (($symb) && ($ENV{'acc.randomout'}=~/\&\Q$symb\E\&/)) {
return '';
}
@@ -3129,8 +3112,10 @@ sub log_query {
sub fetch_enrollment_query {
my ($context,$affiliatesref,$replyref,$dom,$cnum) = @_;
my $homeserver;
+ my $maxtries = 1;
if ($context eq 'automated') {
$homeserver = $perlvar{'lonHostID'};
+ $maxtries = 10; # will wait for up to 2000s for retrieval of classlist data before timeout
} else {
$homeserver = &homeserver($cnum,$dom);
}
@@ -3148,8 +3133,13 @@ sub fetch_enrollment_query {
return 'error: '.$queryid;
}
my $reply = &get_query_reply($queryid);
+ my $tries = 1;
+ while (($reply=~/^timeout/) && ($tries < $maxtries)) {
+ $reply = &get_query_reply($queryid);
+ $tries ++;
+ }
if ( ($reply =~/^timeout/) || ($reply =~/^error/) ) {
- &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$ENV{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum);
+ &logthis('fetch_enrollment_query error: '.$reply.' for '.$dom.' '.$ENV{'user.name'}.' for '.$queryid.' context: '.$context.' '.$cnum.' maxtries: '.$maxtries.' tries: '.$tries);
} else {
my @responses = split/:/,$reply;
if ($homeserver eq $perlvar{'lonHostID'}) {
@@ -3283,11 +3273,18 @@ sub auto_instcode_format {
my $courses = '';
my $homeserver;
if ($caller eq 'global') {
- $homeserver = $perlvar{'lonHostID'};
+ foreach my $tryserver (keys %libserv) {
+ if ($hostdom{$tryserver} eq $codedom) {
+ $homeserver = $tryserver;
+ last;
+ }
+ }
+ if (($ENV{'user.name'}) && ($ENV{'user.domain'} eq $codedom)) {
+ $homeserver = &homeserver($ENV{'user.name'},$codedom);
+ }
} else {
$homeserver = &homeserver($caller,$codedom);
}
- my $host=$hostname{$homeserver};
foreach (keys %{$instcodes}) {
$courses .= &escape($_).'='.&escape($$instcodes{$_}).'&';
}
@@ -3478,9 +3475,12 @@ sub modifyuser {
if (defined($middle)) { $names{'middlename'} = $middle; }
if ($last) { $names{'lastname'} = $last; }
if (defined($gene)) { $names{'generation'} = $gene; }
- if ($email) { $names{'notification'} = $email;
- $names{'critnotification'} = $email; }
-
+ if ($email) {
+ $email=~s/[^\w\@\.\-\,]//gs;
+ if ($email=~/\@/) { $names{'notification'} = $email;
+ $names{'critnotification'} = $email;
+ $names{'permanentemail'} = $email; }
+ }
my $reply = &put('environment', \%names, $udom,$uname);
if ($reply ne 'ok') { return 'error: '.$reply; }
&logthis('Success modifying user '.$udom.', '.$uname.', '.$uid.', '.
@@ -3556,8 +3556,7 @@ sub modify_student_enrollment {
$gene = $tmp{'generation'} if (!defined($gene) || $gene eq '');
$uid = $tmp{'id'} if (!defined($uid) || $uid eq '');
}
- my $fullname = &Apache::loncoursedata::ProcessFullName($last,$gene,
- $first,$middle);
+ my $fullname = &format_name($first,$middle,$last,$gene,'lastname');
my $reply=cput('classlist',
{"$uname:$udom" =>
join(':',$end,$start,$uid,$usec,$fullname,$type,$locktype) },
@@ -3574,6 +3573,25 @@ sub modify_student_enrollment {
return &assignrole($udom,$uname,$uurl,'st',$end,$start);
}
+sub format_name {
+ my ($firstname,$middlename,$lastname,$generation,$first)=@_;
+ my $name;
+ if ($first ne 'lastname') {
+ $name=$firstname.' '.$middlename.' '.$lastname.' '.$generation;
+ } else {
+ if ($lastname=~/\S/) {
+ $name.= $lastname.' '.$generation.', '.$firstname.' '.$middlename;
+ $name=~s/\s+,/,/;
+ } else {
+ $name.= $firstname.' '.$middlename.' '.$generation;
+ }
+ }
+ $name=~s/^\s+//;
+ $name=~s/\s+$//;
+ $name=~s/\s+/ /g;
+ return $name;
+}
+
# ------------------------------------------------- Write to course preferences
sub writecoursepref {
@@ -3596,7 +3614,7 @@ sub writecoursepref {
# ---------------------------------------------------------- Make/modify course
sub createcourse {
- my ($udom,$description,$url,$course_server,$nonstandard,$inst_code)=@_;
+ my ($udom,$description,$url,$course_server,$nonstandard,$inst_code,$course_owner)=@_;
$url=&declutter($url);
my $cid='';
unless (&allowed('ccc',$udom)) {
@@ -3631,7 +3649,7 @@ sub createcourse {
# ----------------------------------------------------------------- Course made
# log existence
&courseidput($udom,&escape($udom.'_'.$uname).'='.&escape($description).
- '='.&escape($inst_code),$uhome);
+ ':'.&escape($inst_code).':'.&escape($course_owner),$uhome);
&flushcourselogs();
# set toplevel url
my $topurl=$url;
@@ -3692,6 +3710,169 @@ sub diskusage {
return $listing;
}
+sub is_locked {
+ my ($file_name, $domain, $user) = @_;
+ my @check;
+ my $is_locked;
+ push @check, $file_name;
+ my %locked = &Apache::lonnet::get('file_permissions',\@check,
+ $ENV{'user.domain'},$ENV{'user.name'});
+ if (ref($locked{$file_name}) eq 'ARRAY') {
+ $is_locked = 'true';
+ } else {
+ $is_locked = 'false';
+ }
+}
+
+# ------------------------------------------------------------- Mark as Read Only
+
+sub mark_as_readonly {
+ my ($domain,$user,$files,$what) = @_;
+ my %current_permissions = &Apache::lonnet::dump('file_permissions',$domain,$user);
+ foreach my $file (@{$files}) {
+ push(@{$current_permissions{$file}},$what);
+ }
+ &Apache::lonnet::put('file_permissions',\%current_permissions,$domain,$user);
+ return;
+}
+
+# ------------------------------------------------------------Save Selected Files
+
+sub save_selected_files {
+ my ($user, $path, @files) = @_;
+ my $filename = $user."savedfiles";
+ my @other_files = &files_not_in_path($user, $path);
+ open (OUT, '>'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
+ foreach my $file (@files) {
+ print (OUT $ENV{'form.currentpath'}.$file."\n");
+ }
+ foreach my $file (@other_files) {
+ print (OUT $file."\n");
+ }
+ close (OUT);
+ return 'ok';
+}
+
+sub clear_selected_files {
+ my ($user) = @_;
+ my $filename = $user."savedfiles";
+ open (OUT, '>'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
+ print (OUT undef);
+ close (OUT);
+ return ("ok");
+}
+
+sub files_in_path {
+ my ($user, $path) = @_;
+ my $filename = $user."savedfiles";
+ my %return_files;
+ open (IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
+ while (my $line_in = <IN>) {
+ chomp ($line_in);
+ my @paths_and_file = split (m!/!, $line_in);
+ my $file_part = pop (@paths_and_file);
+ my $path_part = join ('/', @paths_and_file);
+ $path_part.='/';
+ my $path_and_file = $path_part.$file_part;
+ if ($path_part eq $path) {
+ $return_files{$file_part}= 'selected';
+ }
+ }
+ close (IN);
+ return (\%return_files);
+}
+
+# called in portfolio select mode, to show files selected NOT in current directory
+sub files_not_in_path {
+ my ($user, $path) = @_;
+ my $filename = $user."savedfiles";
+ my @return_files;
+ my $path_part;
+ open (IN, '<'.$Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/'.$filename);
+ while (<IN>) {
+ #ok, I know it's clunky, but I want it to work
+ my @paths_and_file = split m!/!, $_;
+ my $file_part = pop (@paths_and_file);
+ chomp ($file_part);
+ my $path_part = join ('/', @paths_and_file);
+ $path_part .= '/';
+ my $path_and_file = $path_part.$file_part;
+ if ($path_part ne $path) {
+ push (@return_files, ($path_and_file));
+ }
+ }
+ close (OUT);
+ return (@return_files);
+}
+
+#--------------------------------------------------------------Get Marked as Read Only
+
+sub get_marked_as_readonly {
+ my ($domain,$user,$what) = @_;
+ my %current_permissions = &Apache::lonnet::dump('file_permissions',$domain,$user);
+ my @readonly_files;
+ while (my ($file_name,$value) = each(%current_permissions)) {
+ if (ref($value) eq "ARRAY"){
+ foreach my $stored_what (@{$value}) {
+ if ($stored_what eq $what) {
+ push(@readonly_files, $file_name);
+ } elsif (!defined($what)) {
+ push(@readonly_files, $file_name);
+ }
+ }
+ }
+ }
+ return @readonly_files;
+}
+#-----------------------------------------------------------Get Marked as Read Only Hash
+
+sub get_marked_as_readonly_hash {
+ my ($domain,$user,$what) = @_;
+ my %current_permissions = &Apache::lonnet::dump('file_permissions',$domain,$user);
+ my %readonly_files;
+ while (my ($file_name,$value) = each(%current_permissions)) {
+ if (ref($value) eq "ARRAY"){
+ foreach my $stored_what (@{$value}) {
+ if ($stored_what eq $what) {
+ $readonly_files{$file_name} = 'locked';
+ } elsif (!defined($what)) {
+ $readonly_files{$file_name} = 'locked';
+ }
+ }
+ }
+ }
+ return %readonly_files;
+}
+# ------------------------------------------------------------ Unmark as Read Only
+
+sub unmark_as_readonly {
+ # unmarks all files locked by $what
+ # for portfolio submissions, $what contains $crsid and $symb
+ my ($domain,$user,$what) = @_;
+ my %current_permissions = &Apache::lonnet::dump('file_permissions',$domain,$user);
+ my @readonly_files = &Apache::lonnet::get_marked_as_readonly($domain,$user,$what);
+ foreach my $file(@readonly_files){
+ my $current_locks = $current_permissions{$file};
+ my @new_locks;
+ my @del_keys;
+ if (ref($current_locks) eq "ARRAY"){
+ foreach my $locker (@{$current_locks}) {
+ unless ($locker eq $what) {
+ push(@new_locks, $what);
+ }
+ }
+ if (@new_locks > 0) {
+ $current_permissions{$file} = \@new_locks;
+ } else {
+ push(@del_keys, $file);
+ &Apache::lonnet::del('file_permissions',\@del_keys, $domain, $user);
+ delete $current_permissions{$file};
+ }
+ }
+ }
+ &Apache::lonnet::put('file_permissions',\%current_permissions,$domain,$user);
+ return;
+}
# ------------------------------------------------------------ Directory lister
@@ -3717,19 +3898,37 @@ sub dirlist {
if($udom) {
if($uname) {
- my $listing=reply('ls:'.$dirRoot.'/'.$uri,
+ my $listing=reply('ls2:'.$dirRoot.'/'.$uri,
homeserver($uname,$udom));
- return split(/:/,$listing);
+ my @listing_results;
+ if ($listing eq 'unknown_cmd') {
+ $listing=reply('ls:'.$dirRoot.'/'.$uri,
+ homeserver($uname,$udom));
+ @listing_results = split(/:/,$listing);
+ } else {
+ @listing_results = map { &unescape($_); } split(/:/,$listing);
+ }
+ return @listing_results;
} elsif(!defined($alternateDirectoryRoot)) {
my $tryserver;
my %allusers=();
foreach $tryserver (keys %libserv) {
if($hostdom{$tryserver} eq $udom) {
- my $listing=reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
+ my $listing=reply('ls2:'.$perlvar{'lonDocRoot'}.'/res/'.
$udom, $tryserver);
- if (($listing ne 'no_such_dir') && ($listing ne 'empty')
- && ($listing ne 'con_lost')) {
- foreach (split(/:/,$listing)) {
+ my @listing_results;
+ if ($listing eq 'unknown_cmd') {
+ $listing=reply('ls:'.$perlvar{'lonDocRoot'}.'/res/'.
+ $udom, $tryserver);
+ @listing_results = split(/:/,$listing);
+ } else {
+ @listing_results =
+ map { &unescape($_); } split(/:/,$listing);
+ }
+ if ($listing_results[0] ne 'no_such_dir' &&
+ $listing_results[0] ne 'empty' &&
+ $listing_results[0] ne 'con_lost') {
+ foreach (@listing_results) {
my ($entry,@stat)=split(/&/,$_);
$allusers{$entry}=1;
}
@@ -3801,6 +4000,9 @@ sub GetFileTimestamp {
sub directcondval {
my $number=shift;
+ if (!defined($ENV{'user.state.'.$ENV{'request.course.id'}})) {
+ &Apache::lonuserstate::evalstate();
+ }
if ($ENV{'user.state.'.$ENV{'request.course.id'}}) {
return substr($ENV{'user.state.'.$ENV{'request.course.id'}},$number,1);
} else {
@@ -3854,7 +4056,7 @@ sub condval {
sub devalidatecourseresdata {
my ($coursenum,$coursedomain)=@_;
my $hashid=$coursenum.':'.$coursedomain;
- &devalidate_cache(\%courseresdatacache,$hashid,'courseres');
+ &devalidate_cache_new('courseres',$hashid);
}
# --------------------------------------------------- Course Resourcedata Query
@@ -3863,18 +4065,18 @@ sub courseresdata {
my ($coursenum,$coursedomain,@which)=@_;
my $coursehom=&homeserver($coursenum,$coursedomain);
my $hashid=$coursenum.':'.$coursedomain;
- my ($result,$cached)=&is_cached(\%courseresdatacache,$hashid,'courseres');
+ my ($result,$cached)=&is_cached_new('courseres',$hashid);
unless (defined($cached)) {
my %dumpreply=&dump('resourcedata',$coursedomain,$coursenum);
$result=\%dumpreply;
my ($tmp) = keys(%dumpreply);
if ($tmp !~ /^(con_lost|error|no_such_host)/i) {
- &do_cache(\%courseresdatacache,$hashid,$result,'courseres');
+ &do_cache_new('courseres',$hashid,$result,600);
} elsif ($tmp =~ /^(con_lost|no_such_host)/) {
return $tmp;
} elsif ($tmp =~ /^(error)/) {
$result=undef;
- &do_cache(\%courseresdatacache,$hashid,$result,'courseres');
+ &do_cache_new('courseres',$hashid,$result,600);
}
}
foreach my $item (@which) {
@@ -4026,11 +4228,15 @@ sub EXT {
my $section;
if (defined($courseid) && $courseid eq $ENV{'request.course.id'}) {
+ if (!$symbparm) { $symbparm=&symbread(); }
+ }
+ my ($courselevelm,$courselevel);
+ if ($symbparm && defined($courseid) &&
+ $courseid eq $ENV{'request.course.id'}) {
#print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
# ----------------------------------------------------- Cascading lookup scheme
- if (!$symbparm) { $symbparm=&symbread(); }
my $symbp=$symbparm;
my $mapp=(&decode_symb($symbp))[0];
@@ -4041,31 +4247,30 @@ sub EXT {
($ENV{'user.domain'} eq $udom)) {
$section=$ENV{'request.course.sec'};
} else {
- if (! defined($usection)) {
- $section=&usection($udom,$uname,$courseid);
- } else {
- $section = $usection;
- }
+ if (! defined($usection)) {
+ $section=&getsection($udom,$uname,$courseid);
+ } else {
+ $section = $usection;
+ }
}
my $seclevel=$courseid.'.['.$section.'].'.$spacequalifierrest;
my $seclevelr=$courseid.'.['.$section.'].'.$symbparm;
my $seclevelm=$courseid.'.['.$section.'].'.$mapparm;
- my $courselevel=$courseid.'.'.$spacequalifierrest;
+ $courselevel=$courseid.'.'.$spacequalifierrest;
my $courselevelr=$courseid.'.'.$symbparm;
- my $courselevelm=$courseid.'.'.$mapparm;
+ $courselevelm=$courseid.'.'.$mapparm;
# ----------------------------------------------------------- first, check user
#most student don\'t have any data set, check if there is some data
if (! &EXT_cache_status($udom,$uname)) {
my $hashid="$udom:$uname";
- my ($result,$cached)=&is_cached(\%userresdatacache,$hashid,
- 'userres');
+ my ($result,$cached)=&is_cached_new('userres',$hashid);
if (!defined($cached)) {
my %resourcedata=&dump('resourcedata',$udom,$uname);
$result=\%resourcedata;
- &do_cache(\%userresdatacache,$hashid,$result,'userres');
+ &do_cache_new('userres',$hashid,$result);
}
my ($tmp)=keys(%$result);
if (($tmp!~/^error\:/) && ($tmp!~/^con_lost/)) {
@@ -4083,20 +4288,19 @@ sub EXT {
$uname." at ".$udom.": ".
$tmp."</font>");
} elsif ($tmp=~/error: 2 /) {
- &EXT_cache_set($udom,$uname);
+ &EXT_cache_set($udom,$uname);
} elsif ($tmp =~ /^(con_lost|no_such_host)/) {
return $tmp;
}
}
}
-# -------------------------------------------------------- second, check course
+# ------------------------------------------------ second, check some of course
my $coursereply=&courseresdata($ENV{'course.'.$courseid.'.num'},
- $ENV{'course.'.$courseid.'.domain'},
- ($seclevelr,$seclevelm,$seclevel,
- $courselevelr,$courselevelm,
- $courselevel));
+ $ENV{'course.'.$courseid.'.domain'},
+ ($seclevelr,$seclevelm,$seclevel,
+ $courselevelr));
if (defined($coursereply)) { return $coursereply; }
# ------------------------------------------------------ third, check map parms
@@ -4110,7 +4314,7 @@ sub EXT {
}
if ($thisparm) { return $thisparm; }
}
-# --------------------------------------------- last, look in resource metadata
+# ------------------------------------------ fourth, look in resource metadata
$spacequalifierrest=~s/\./\_/;
my $filename;
@@ -4125,6 +4329,14 @@ sub EXT {
$metadata=&metadata($filename,'parameter_'.$spacequalifierrest);
if (defined($metadata)) { return $metadata; }
+# ---------------------------------------------- fourth, look in rest pf course
+ if ($symbparm && defined($courseid) &&
+ $courseid eq $ENV{'request.course.id'}) {
+ my $coursereply=&courseresdata($ENV{'course.'.$courseid.'.num'},
+ $ENV{'course.'.$courseid.'.domain'},
+ ($courselevelm,$courselevel));
+ if (defined($coursereply)) { return $coursereply; }
+ }
# ------------------------------------------------------------------ Cascade up
unless ($space eq '0') {
my @parts=split(/_/,$space);
@@ -4167,6 +4379,7 @@ sub packages_tab_default {
if (defined($packagetab{"$pack_type&$name&default"})) {
return $packagetab{"$pack_type&$name&default"};
}
+ if ($pack_type eq 'part') { $pack_part='0'; }
if (defined($packagetab{$pack_type."_".$pack_part."&$name&default"})) {
return $packagetab{$pack_type."_".$pack_part."&$name&default"};
}
@@ -4192,6 +4405,7 @@ sub add_prefix_and_part {
# ---------------------------------------------------------------- Get metadata
+my %metaentry;
sub metadata {
my ($uri,$what,$liburi,$prefix,$depthcount)=@_;
$uri=&declutter($uri);
@@ -4211,27 +4425,30 @@ sub metadata {
# Everything is cached by the main uri, libraries are never directly cached
#
if (!defined($liburi)) {
- my ($result,$cached)=&is_cached(\%metacache,$uri,'meta');
+ my ($result,$cached)=&is_cached_new('meta',$uri);
if (defined($cached)) { return $result->{':'.$what}; }
}
{
#
# Is this a recursive call for a library?
#
- if (! exists($metacache{$uri})) {
- $metacache{$uri}={};
- }
+# if (! exists($metacache{$uri})) {
+# $metacache{$uri}={};
+# }
if ($liburi) {
$liburi=&declutter($liburi);
$filename=$liburi;
} else {
- &devalidate_cache(\%metacache,$uri,'meta');
+ &devalidate_cache_new('meta',$uri);
+ undef(%metaentry);
}
my %metathesekeys=();
unless ($filename=~/\.meta$/) { $filename.='.meta'; }
my $metastring;
if ($uri !~ m|^uploaded/|) {
- $metastring=&getfile(&filelocation('',&clutter($filename)));
+ my $file=&filelocation('',&clutter($filename));
+ #push(@{$metaentry{$uri.'.file'}},$file);
+ $metastring=&getfile($file);
}
my $parser=HTML::LCParser->new(\$metastring);
my $token;
@@ -4247,10 +4464,10 @@ sub metadata {
if (defined($token->[2]->{'id'})) {
$keyroot.='_'.$token->[2]->{'id'};
}
- if ($metacache{$uri}->{':packages'}) {
- $metacache{$uri}->{':packages'}.=','.$package.$keyroot;
+ if ($metaentry{':packages'}) {
+ $metaentry{':packages'}.=','.$package.$keyroot;
} else {
- $metacache{$uri}->{':packages'}=$package.$keyroot;
+ $metaentry{':packages'}=$package.$keyroot;
}
foreach (keys %packagetab) {
my $part=$keyroot;
@@ -4272,14 +4489,14 @@ sub metadata {
if ($subp eq 'display') {
$value.=' [Part: '.$part.']';
}
- $metacache{$uri}->{':'.$unikey.'.part'}=$part;
+ $metaentry{':'.$unikey.'.part'}=$part;
$metathesekeys{$unikey}=1;
- unless (defined($metacache{$uri}->{':'.$unikey.'.'.$subp})) {
- $metacache{$uri}->{':'.$unikey.'.'.$subp}=$value;
+ unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
+ $metaentry{':'.$unikey.'.'.$subp}=$value;
}
- if (defined($metacache{$uri}->{':'.$unikey.'.default'})) {
- $metacache{$uri}->{':'.$unikey}=
- $metacache{$uri}->{':'.$unikey.'.default'};
+ if (defined($metaentry{':'.$unikey.'.default'})) {
+ $metaentry{':'.$unikey}=
+ $metaentry{':'.$unikey.'.default'};
}
}
}
@@ -4312,7 +4529,7 @@ sub metadata {
foreach (sort(split(/\,/,&metadata($uri,'keys',
$location,$unikey,
$depthcount+1)))) {
- $metacache{$uri}->{':'.$_}=$metacache{$uri}->{':'.$_};
+ $metaentry{':'.$_}=$metaentry{':'.$_};
$metathesekeys{$_}=1;
}
}
@@ -4323,18 +4540,18 @@ sub metadata {
}
$metathesekeys{$unikey}=1;
foreach (@{$token->[3]}) {
- $metacache{$uri}->{':'.$unikey.'.'.$_}=$token->[2]->{$_};
+ $metaentry{':'.$unikey.'.'.$_}=$token->[2]->{$_};
}
my $internaltext=&HTML::Entities::decode($parser->get_text('/'.$entry));
- my $default=$metacache{$uri}->{':'.$unikey.'.default'};
+ my $default=$metaentry{':'.$unikey.'.default'};
if ( $internaltext =~ /^\s*$/ && $default !~ /^\s*$/) {
# only ws inside the tag, and not in default, so use default
# as value
- $metacache{$uri}->{':'.$unikey}=$default;
+ $metaentry{':'.$unikey}=$default;
} else {
# either something interesting inside the tag or default
# uninteresting
- $metacache{$uri}->{':'.$unikey}=$internaltext;
+ $metaentry{':'.$unikey}=$internaltext;
}
# end of not-a-package not-a-library import
}
@@ -4351,7 +4568,7 @@ sub metadata {
&metadata_create_package_def($uri,$key,'extension_'.$extension,
\%metathesekeys);
}
- if (!exists($metacache{$uri}->{':packages'})) {
+ if (!exists($metaentry{':packages'})) {
foreach my $key (sort(keys(%packagetab))) {
#no specific packages well let's get default then
if ($key!~/^default&/) { next; }
@@ -4360,31 +4577,31 @@ sub metadata {
}
}
# are there custom rights to evaluate
- if ($metacache{$uri}->{':copyright'} eq 'custom') {
+ if ($metaentry{':copyright'} eq 'custom') {
#
# Importing a rights file here
#
unless ($depthcount) {
- my $location=$metacache{$uri}->{':customdistributionfile'};
+ my $location=$metaentry{':customdistributionfile'};
my $dir=$filename;
$dir=~s|[^/]*$||;
$location=&filelocation($dir,$location);
foreach (sort(split(/\,/,&metadata($uri,'keys',
$location,'_rights',
$depthcount+1)))) {
- $metacache{$uri}->{':'.$_}=$metacache{$uri}->{':'.$_};
+ #$metaentry{':'.$_}=$metacache{$uri}->{':'.$_};
$metathesekeys{$_}=1;
}
}
}
- $metacache{$uri}->{':keys'}=join(',',keys %metathesekeys);
- &metadata_generate_part0(\%metathesekeys,$metacache{$uri},$uri);
- $metacache{$uri}->{':allpossiblekeys'}=join(',',keys %metathesekeys);
- &do_cache(\%metacache,$uri,$metacache{$uri},'meta');
+ $metaentry{':keys'}=join(',',keys %metathesekeys);
+ &metadata_generate_part0(\%metathesekeys,\%metaentry,$uri);
+ $metaentry{':allpossiblekeys'}=join(',',keys %metathesekeys);
+ &do_cache_new('meta',$uri,\%metaentry);
# this is the end of "was not already recently cached
}
- return $metacache{$uri}->{':'.$what};
+ return $metaentry{':'.$what};
}
sub metadata_create_package_def {
@@ -4392,22 +4609,22 @@ sub metadata_create_package_def {
my ($pack,$name,$subp)=split(/\&/,$key);
if ($subp eq 'default') { next; }
- if (defined($metacache{$uri}->{':packages'})) {
- $metacache{$uri}->{':packages'}.=','.$package;
+ if (defined($metaentry{':packages'})) {
+ $metaentry{':packages'}.=','.$package;
} else {
- $metacache{$uri}->{':packages'}=$package;
+ $metaentry{':packages'}=$package;
}
my $value=$packagetab{$key};
my $unikey;
$unikey='parameter_0_'.$name;
- $metacache{$uri}->{':'.$unikey.'.part'}=0;
+ $metaentry{':'.$unikey.'.part'}=0;
$$metathesekeys{$unikey}=1;
- unless (defined($metacache{$uri}->{':'.$unikey.'.'.$subp})) {
- $metacache{$uri}->{':'.$unikey.'.'.$subp}=$value;
+ unless (defined($metaentry{':'.$unikey.'.'.$subp})) {
+ $metaentry{':'.$unikey.'.'.$subp}=$value;
}
- if (defined($metacache{$uri}->{':'.$unikey.'.default'})) {
- $metacache{$uri}->{':'.$unikey}=
- $metacache{$uri}->{':'.$unikey.'.default'};
+ if (defined($metaentry{':'.$unikey.'.default'})) {
+ $metaentry{':'.$unikey}=
+ $metaentry{':'.$unikey.'.default'};
}
}
@@ -4445,8 +4662,11 @@ sub gettitle {
my $urlsymb=shift;
my $symb=&symbread($urlsymb);
if ($symb) {
- my ($result,$cached)=&is_cached(\%titlecache,$symb,'title',600);
- if (defined($cached)) { return $result; }
+ my $key=$ENV{'request.course.id'}."\0".$symb;
+ my ($result,$cached)=&is_cached_new('title',$key);
+ if (defined($cached)) {
+ return $result;
+ }
my ($map,$resid,$url)=&decode_symb($symb);
my $title='';
my %bighash;
@@ -4458,7 +4678,7 @@ sub gettitle {
}
$title=~s/\&colon\;/\:/gs;
if ($title) {
- return &do_cache(\%titlecache,$symb,$title,'title');
+ return &do_cache_new('title',$key,$title,600);
}
$urlsymb=$url;
}
@@ -4477,7 +4697,8 @@ sub symblist {
if (tie(%hash,'GDBM_File',$ENV{'request.course.fn'}.'_symb.db',
&GDBM_WRCREAT(),0640)) {
foreach (keys %newhash) {
- $hash{declutter($_)}=$mapname.'___'.&deversion($newhash{$_});
+ $hash{declutter($_)}=&encode_symb($mapname,$newhash{$_}->[1],
+ $newhash{$_}->[0]);
}
if (untie(%hash)) {
return 'ok';
@@ -4522,8 +4743,11 @@ sub symbverify {
if (
&symbclean(&declutter($bighash{'map_id_'.$mapid}).'___'.$resid.'___'.$thisfn)
eq $symb) {
- $okay=1;
- }
+ if (($ENV{'request.role.adv'}) ||
+ $bighash{'encrypted_'.$_} eq $ENV{'request.enc'}) {
+ $okay=1;
+ }
+ }
}
}
untie(%bighash);
@@ -4535,7 +4759,7 @@ sub symbverify {
sub symbclean {
my $symb=shift;
-
+ if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
# remove version from map
$symb=~s/\.(\d+)\.(\w+)\_\_\_/\.$2\_\_\_/;
@@ -4556,7 +4780,9 @@ sub encode_symb {
}
sub decode_symb {
- my ($map,$resid,$url)=split(/\_\_\_/,shift);
+ my $symb=shift;
+ if ($symb=~m|^/enc/|) { $symb=&Apache::lonenc::unencrypted($symb); }
+ my ($map,$resid,$url)=split(/___/,$symb);
return (&fixversion($map),$resid,&fixversion($url));
}
@@ -4567,8 +4793,7 @@ sub fixversion {
my $uri=&clutter($fn);
my $key=$ENV{'request.course.id'}.'_'.$uri;
# is this cached?
- my ($result,$cached)=&is_cached(\%courseresversioncache,$key,
- 'courseresversion',600);
+ my ($result,$cached)=&is_cached_new('courseresversion',$key);
if (defined($cached)) { return $result; }
# unfortunately not cached, or expired
if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
@@ -4582,8 +4807,7 @@ sub fixversion {
}
untie %bighash;
}
- return &do_cache
- (\%courseresversioncache,$key,&declutter($uri),'courseresversion');
+ return &do_cache_new('courseresversion',$key,&declutter($uri),600);
}
sub deversion {
@@ -4596,14 +4820,21 @@ sub deversion {
sub symbread {
my ($thisfn,$donotrecurse)=@_;
+ my $cache_str='request.symbread.cached.'.$thisfn;
+ if (defined($ENV{$cache_str})) { return $ENV{$cache_str}; }
# no filename provided? try from environment
unless ($thisfn) {
- if ($ENV{'request.symb'}) { return &symbclean($ENV{'request.symb'}); }
+ if ($ENV{'request.symb'}) {
+ return $ENV{$cache_str}=&symbclean($ENV{'request.symb'});
+ }
$thisfn=$ENV{'request.filename'};
}
+ if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
# is that filename actually a symb? Verify, clean, and return
if ($thisfn=~/\_\_\_\d+\_\_\_(.*)$/) {
- if (&symbverify($thisfn,$1)) { return &symbclean($thisfn); }
+ if (&symbverify($thisfn,$1)) {
+ return $ENV{$cache_str}=&symbclean($thisfn);
+ }
}
$thisfn=declutter($thisfn);
my %hash;
@@ -4621,13 +4852,13 @@ sub symbread {
}
# ---------------------------------------------------------- There was an entry
if ($syval) {
- unless ($syval=~/\_\d+$/) {
- unless ($ENV{'form.request.prefix'}=~/\.(\d+)\_$/) {
- &appenv('request.ambiguous' => $thisfn);
- return '';
- }
- $syval.=$1;
- }
+ #unless ($syval=~/\_\d+$/) {
+ #unless ($ENV{'form.request.prefix'}=~/\.(\d+)\_$/) {
+ #&appenv('request.ambiguous' => $thisfn);
+ #return $ENV{$cache_str}='';
+ #}
+ #$syval.=$1;
+ #}
} else {
# ------------------------------------------------------- Was not in symb table
if (tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
@@ -4671,11 +4902,12 @@ sub symbread {
}
}
if ($syval) {
- return &symbclean($syval.'___'.$thisfn);
+ return $ENV{$cache_str}=$syval;
+ #return $ENV{$cache_str}=&symbclean($syval.'___'.$thisfn);
}
}
&appenv('request.ambiguous' => $thisfn);
- return '';
+ return $ENV{$cache_str}='';
}
# ---------------------------------------------------------- Return random seed
@@ -4689,6 +4921,7 @@ sub numval {
$txt=~tr/U-Z/0-5/;
$txt=~tr/u-z/0-5/;
$txt=~s/\D//g;
+ if ($_64bit) { if ($txt > 2**32) { return -1; } }
return int($txt);
}
@@ -4704,11 +4937,29 @@ sub numval2 {
my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
my $total;
foreach my $val (@txts) { $total+=$val; }
+ if ($_64bit) { if ($total > 2**32) { return -1; } }
return int($total);
}
+sub numval3 {
+ use integer;
+ my $txt=shift;
+ $txt=~tr/A-J/0-9/;
+ $txt=~tr/a-j/0-9/;
+ $txt=~tr/K-T/0-9/;
+ $txt=~tr/k-t/0-9/;
+ $txt=~tr/U-Z/0-5/;
+ $txt=~tr/u-z/0-5/;
+ $txt=~s/\D//g;
+ my @txts=split(/(\d\d\d\d\d\d\d\d\d)/,$txt);
+ my $total;
+ foreach my $val (@txts) { $total+=$val; }
+ if ($_64bit) { $total=(($total<<32)>>32); }
+ return $total;
+}
+
sub latest_rnd_algorithm_id {
- return '64bit3';
+ return '64bit4';
}
sub get_rand_alg {
@@ -4720,10 +4971,16 @@ sub get_rand_alg {
return &latest_rnd_algorithm_id();
}
+sub validCODE {
+ my ($CODE)=@_;
+ if (defined($CODE) && $CODE ne '' && $CODE =~ /^\w+$/) { return 1; }
+ return 0;
+}
+
sub getCODE {
- if (defined($ENV{'form.CODE'})) { return $ENV{'form.CODE'}; }
+ if (&validCODE($ENV{'form.CODE'})) { return $ENV{'form.CODE'}; }
if (defined($Apache::lonhomework::parsing_a_problem) &&
- defined($Apache::lonhomework::history{'resource.CODE'})) {
+ &validCODE($Apache::lonhomework::history{'resource.CODE'})) {
return $Apache::lonhomework::history{'resource.CODE'};
}
return undef;
@@ -4741,7 +4998,13 @@ sub rndseed {
if (!$username) { $username=$wusername }
my $which=&get_rand_alg();
if (defined(&getCODE())) {
- return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
+ if ($which eq '64bit4') {
+ return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
+ } else {
+ return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
+ }
+ } elsif ($which eq '64bit4') {
+ return &rndseed_64bit4($symb,$courseid,$domain,$username);
} elsif ($which eq '64bit3') {
return &rndseed_64bit3($symb,$courseid,$domain,$username);
} elsif ($which eq '64bit2') {
@@ -4765,6 +5028,7 @@ sub rndseed_32bit {
my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
#&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
#&Apache::lonxml::debug("rndseed :$num:$symb");
+ if ($_64bit) { $num=(($num<<32)>>32); }
return $num;
}
}
@@ -4785,6 +5049,8 @@ sub rndseed_64bit {
my $num2=$nameseed+$domainseed+$courseseed;
#&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
#&Apache::lonxml::debug("rndseed :$num:$symb");
+ if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
+ if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
return "$num1,$num2";
}
}
@@ -4828,7 +5094,33 @@ sub rndseed_64bit3 {
my $num1=$symbchck+$symbseed+$namechck;
my $num2=$nameseed+$domainseed+$courseseed;
#&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
- #&Apache::lonxml::debug("rndseed :$num:$symb");
+ #&Apache::lonxml::debug("rndseed :$num1:$num2:$_64bit");
+ if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
+
+ return "$num1:$num2";
+ }
+}
+
+sub rndseed_64bit4 {
+ my ($symb,$courseid,$domain,$username)=@_;
+ {
+ use integer;
+ # strings need to be an even # of cahracters long, it it is odd the
+ # last characters gets thrown away
+ my $symbchck=unpack("%32S*",$symb.' ') << 21;
+ my $symbseed=numval3($symb) << 10;
+ my $namechck=unpack("%32S*",$username.' ');
+
+ my $nameseed=numval3($username) << 21;
+ my $domainseed=unpack("%32S*",$domain.' ') << 10;
+ my $courseseed=unpack("%32S*",$courseid.' ');
+
+ my $num1=$symbchck+$symbseed+$namechck;
+ my $num2=$nameseed+$domainseed+$courseseed;
+ #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
+ #&Apache::lonxml::debug("rndseed :$num1:$num2:$_64bit");
+ if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
+
return "$num1:$num2";
}
}
@@ -4846,6 +5138,27 @@ sub rndseed_CODE_64bit {
my $num2=$CODEseed+$courseseed+$symbchck;
#&Apache::lonxml::debug("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
#&Apache::lonxml::debug("rndseed :$num1:$num2:$symb");
+ if ($_64bit) { $num1=(($num1<<32)>>32); }
+ if ($_64bit) { $num2=(($num2<<32)>>32); }
+ return "$num1:$num2";
+ }
+}
+
+sub rndseed_CODE_64bit4 {
+ my ($symb,$courseid,$domain,$username)=@_;
+ {
+ use integer;
+ my $symbchck=unpack("%32S*",$symb.' ') << 16;
+ my $symbseed=numval3($symb);
+ my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
+ my $CODEseed=numval3(&getCODE());
+ my $courseseed=unpack("%32S*",$courseid.' ');
+ my $num1=$symbseed+$CODEchck;
+ my $num2=$CODEseed+$courseseed+$symbchck;
+ #&Apache::lonxml::debug("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
+ #&Apache::lonxml::debug("rndseed :$num1:$num2:$symb");
+ if ($_64bit) { $num1=(($num1<<32)>>32); }
+ if ($_64bit) { $num2=(($num2<<32)>>32); }
return "$num1:$num2";
}
}
@@ -4945,10 +5258,8 @@ sub getfile {
sub repcopy_userfile {
my ($file)=@_;
-
if ($file =~ m|^/*uploaded/|) { $file=&filelocation("",$file); }
- if ($file =~ m|^/home/httpd/html/lonUsers/|) { return OK; }
-
+ if ($file =~ m|^/home/httpd/html/lonUsers/|) { return 'OK'; }
my ($cdom,$cnum,$filename) =
($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+([^/]+)/+([^/]+)/+(.*)|);
my ($info,$rtncode);
@@ -4971,7 +5282,7 @@ sub repcopy_userfile {
return -1;
}
if ($info < $fileinfo[9]) {
- return OK;
+ return 'OK';
}
$info = '';
$lwpresp = &getuploaded('GET',$uri,$cdom,$cnum,\$info,\$rtncode);
@@ -5005,18 +5316,20 @@ sub repcopy_userfile {
open(FILE,">$file");
print FILE $info;
close(FILE);
- return OK;
+ return 'OK';
}
sub tokenwrapper {
my $uri=shift;
- $uri=~s/^http\:\/\/([^\/]+)//;
- $uri=~s/^\///;
+ $uri=~s|^http\://([^/]+)||;
+ $uri=~s|^/||;
$ENV{'user.environment'}=~/\/([^\/]+)\.id/;
my $token=$1;
- if ($uri=~/^uploaded\/([^\/]+)\/([^\/]+)\/([^\/]+)(\?\.*)*$/) {
- &appenv('userfile.'.$1.'/'.$2.'/'.$3 => $ENV{'request.course.id'});
- return 'http://'.$hostname{ &homeserver($2,$1)}.'/'.$uri.
+ my (undef,$udom,$uname,$file)=split('/',$uri,4);
+ if ($udom && $uname && $file) {
+ $file=~s|(\?\.*)*$||;
+ &appenv("userfile.$udom/$uname/$file" => $ENV{'request.course.id'});
+ return 'http://'.$hostname{ &homeserver($uname,$udom)}.'/'.$uri.
(($uri=~/\?/)?'&':'?').'token='.$token.
'&tokenissued='.$perlvar{'lonHostID'};
} else {
@@ -5054,39 +5367,39 @@ sub readfile {
}
sub filelocation {
- my ($dir,$file) = @_;
- my $location;
- $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
- if ($file=~m:^/~:) { # is a contruction space reference
- $location = $file;
- $location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:;
- } elsif ($file=~/^\/*uploaded/) { # is an uploaded file
- my ($udom,$uname,$filename)=
- ($file=~m|^/+uploaded/+([^/]+)/+([^/]+)/+(.*)$|);
- my $home=&homeserver($uname,$udom);
- my $is_me=0;
- my @ids=¤t_machine_ids();
- foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
- if ($is_me) {
- $location=&Apache::loncommon::propath($udom,$uname).
- '/userfiles/'.$filename;
- } else {
- $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
- $udom.'/'.$uname.'/'.$filename;
- }
- } else {
- $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
- $file=~s:^/res/:/:;
- if ( !( $file =~ m:^/:) ) {
- $location = $dir. '/'.$file;
+ my ($dir,$file) = @_;
+ my $location;
+ $file=~ s/^\s*(\S+)\s*$/$1/; ## strip off leading and trailing spaces
+ if ($file=~m:^/~:) { # is a contruction space reference
+ $location = $file;
+ $location =~ s:/~(.*?)/(.*):/home/$1/public_html/$2:;
+ } elsif ($file=~/^\/*uploaded/) { # is an uploaded file
+ my ($udom,$uname,$filename)=
+ ($file=~m|^/+uploaded/+([^/]+)/+([^/]+)/+(.*)$|);
+ my $home=&homeserver($uname,$udom);
+ my $is_me=0;
+ my @ids=¤t_machine_ids();
+ foreach my $id (@ids) { if ($id eq $home) { $is_me=1; } }
+ if ($is_me) {
+ $location=&Apache::loncommon::propath($udom,$uname).
+ '/userfiles/'.$filename;
+ } else {
+ $location=$Apache::lonnet::perlvar{'lonDocRoot'}.'/userfiles/'.
+ $udom.'/'.$uname.'/'.$filename;
+ }
} else {
- $location = '/home/httpd/html/res'.$file;
+ $file=~s/^\Q$perlvar{'lonDocRoot'}\E//;
+ $file=~s:^/res/:/:;
+ if ( !( $file =~ m:^/:) ) {
+ $location = $dir. '/'.$file;
+ } else {
+ $location = '/home/httpd/html/res'.$file;
+ }
}
- }
- $location=~s://+:/:g; # remove duplicate /
- while ($location=~m:/\.\./:) {$location=~ s:/[^/]+/\.\./:/:g;} #remove dir/..
- while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
- return $location;
+ $location=~s://+:/:g; # remove duplicate /
+ while ($location=~m:/\.\./:) {$location=~ s:/[^/]+/\.\./:/:g;} #remove dir/..
+ while ($location=~m:/\./:) {$location=~ s:/\./:/:g;} #remove /./
+ return $location;
}
sub hreflocation {
@@ -5132,6 +5445,7 @@ sub current_machine_ids {
sub declutter {
my $thisfn=shift;
+ if ($thisfn=~m|^/enc/|) { $thisfn=&Apache::lonenc::unencrypted($thisfn); }
$thisfn=~s/^\Q$perlvar{'lonDocRoot'}\E//;
$thisfn=~s/^\///;
$thisfn=~s/^res\///;
@@ -5149,6 +5463,15 @@ sub clutter {
return $thisfn;
}
+sub freeze_escape {
+ my ($value)=@_;
+ if (ref($value)) {
+ $value=&nfreeze($value);
+ return '__FROZEN__'.&escape($value);
+ }
+ return &escape($value);
+}
+
# -------------------------------------------------------- Escape Special Chars
sub escape {
@@ -5165,11 +5488,21 @@ sub unescape {
return $str;
}
+sub thaw_unescape {
+ my ($value)=@_;
+ if ($value =~ /^__FROZEN__/) {
+ substr($value,0,10,undef);
+ $value=&unescape($value);
+ return &thaw($value);
+ }
+ return &unescape($value);
+}
+
sub mod_perl_version {
+ return 1;
if (defined($perlvar{'MODPERL2'})) {
return 2;
}
- return 1;
}
sub correct_line_ends {
@@ -5182,17 +5515,20 @@ sub correct_line_ends {
sub goodbye {
&logthis("Starting Shut down");
#not converted to using infrastruture and probably shouldn't be
- &logthis(sprintf("%-20s is %s",'%badServerCache',scalar(%badServerCache)));
+ &logthis(sprintf("%-20s is %s",'%badServerCache',length(&freeze(\%badServerCache))));
#converted
- &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
- &logthis(sprintf("%-20s is %s",'%homecache',scalar(%homecache)));
- &logthis(sprintf("%-20s is %s",'%titlecache',scalar(%titlecache)));
- &logthis(sprintf("%-20s is %s",'%courseresdatacache',scalar(%courseresdatacache)));
+# &logthis(sprintf("%-20s is %s",'%metacache',scalar(%metacache)));
+ &logthis(sprintf("%-20s is %s",'%homecache',length(&freeze(\%homecache))));
+# &logthis(sprintf("%-20s is %s",'%titlecache',length(&freeze(\%titlecache))));
+# &logthis(sprintf("%-20s is %s",'%courseresdatacache',length(&freeze(\%courseresdatacache))));
#1.1 only
- &logthis(sprintf("%-20s is %s",'%userresdatacache',scalar(%userresdatacache)));
- &logthis(sprintf("%-20s is %s",'%usectioncache',scalar(%usectioncache)));
- &logthis(sprintf("%-20s is %s",'%courseresversioncache',scalar(%courseresversioncache)));
- &logthis(sprintf("%-20s is %s",'%resversioncache',scalar(%resversioncache)));
+# &logthis(sprintf("%-20s is %s",'%userresdatacache',length(&freeze(\%userresdatacache))));
+# &logthis(sprintf("%-20s is %s",'%getsectioncache',length(&freeze(\%getsectioncache))));
+# &logthis(sprintf("%-20s is %s",'%courseresversioncache',length(&freeze(\%courseresversioncache))));
+# &logthis(sprintf("%-20s is %s",'%resversioncache',length(&freeze(\%resversioncache))));
+ &logthis(sprintf("%-20s is %s",'%remembered',length(&freeze(\%remembered))));
+ &logthis(sprintf("%-20s is %s",'kicks',$kicks));
+ &logthis(sprintf("%-20s is %s",'hits',$hits));
&flushcourselogs();
&logthis("Shutting down");
return DONE;
@@ -5202,6 +5538,7 @@ BEGIN {
# ----------------------------------- Read loncapa.conf and loncapa_apache.conf
unless ($readit) {
{
+ # FIXME: Use LONCAPA::Configuration::read_conf here and omit next block
open(my $config,"</etc/httpd/conf/loncapa.conf");
while (my $configline=<$config>) {
@@ -5262,18 +5599,32 @@ BEGIN {
while (my $configline=<$config>) {
next if ($configline =~ /^(\#|\s*$)/);
chomp($configline);
- my ($id,$domain,$role,$name,$ip,$domdescr)=split(/:/,$configline);
- if ($id && $domain && $role && $name && $ip) {
+ my ($id,$domain,$role,$name)=split(/:/,$configline);
+ $name=~s/\s//g;
+ if ($id && $domain && $role && $name) {
$hostname{$id}=$name;
$hostdom{$id}=$domain;
- $hostip{$id}=$ip;
- $iphost{$ip}=$id;
if ($role eq 'library') { $libserv{$id}=$name; }
}
}
close($config);
}
+sub get_iphost {
+ if (%iphost) { return %iphost; }
+ foreach my $id (keys(%hostname)) {
+ my $name=$hostname{$id};
+ my $ip = gethostbyname($name);
+ if (!$ip || length($ip) ne 4) {
+ &logthis("Skipping host $id name $name no IP found\n");
+ next;
+ }
+ $ip=inet_ntoa($ip);
+ push(@{$iphost{$ip}},$id);
+ }
+ return %iphost;
+}
+
# ------------------------------------------------------ Read spare server file
{
open(my $config,"<$perlvar{'lonTabDir'}/spare.tab");
@@ -5337,7 +5688,7 @@ BEGIN {
}
-%metacache=();
+$memcache=new Cache::Memcached({'servers'=>['127.0.0.1:11211']});
$processmarker='_'.time.'_'.$perlvar{'lonHostID'};
$dumpcount=0;
@@ -5345,6 +5696,12 @@ $dumpcount=0;
&logtouch();
&logthis('<font color=yellow>INFO: Read configuration</font>');
$readit=1;
+ {
+ use integer;
+ my $test=(2**32)+1;
+ if ($test != 0) { $_64bit=1; } else { $_64bit=0; }
+ &logthis(" Detected 64bit platform ($_64bit)");
+ }
}
}
@@ -5572,8 +5929,8 @@ X<rolesinit()>
B<rolesinit($udom,$username,$authhost)>: get user privileges
=item *
-X<usection()>
-B<usection($udom,$uname,$cname)>: finds the section of student in the
+X<getsection()>
+B<getsection($udom,$uname,$cname)>: finds the section of student in the
course $cname, return section name/number or '' for "not in course"
and '-1' for "no section"
@@ -5776,8 +6133,8 @@ subscribe($fname) : subscribe to a resou
repcopy($filename) : subscribes to the requested file, and attempts to
replicate from the owning library server, Might return
-HTTP_SERVICE_UNAVAILABLE, HTTP_NOT_FOUND, FORBIDDEN, OK, or
-HTTP_BAD_REQUEST, also attempts to grab the metadata for the
+'HTTP_SERVICE_UNAVAILABLE', 'HTTP_NOT_FOUND', 'FORBIDDEN', 'OK', or
+'HTTP_BAD_REQUEST', also attempts to grab the metadata for the
resource. Expects the local filesystem pathname
(/home/httpd/html/res/....)
@@ -5831,9 +6188,10 @@ returns the data handle
=item *
symbverify($symb,$thisfn) : verifies that $symb actually exists and is
-a possible symb for the URL in $thisfn, returns a 1 on success, 0 on
-failure, user must be in a course, as it assumes the existance of the
-course initi hash, and uses $ENV('request.course.id'}
+a possible symb for the URL in $thisfn, and if is an encryypted
+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 existance of
+the course initial hash, and uses $ENV('request.course.id'}
=item *