--- loncom/lonnet/perl/lonnet.pm 2003/03/23 09:00:51 1.347
+++ loncom/lonnet/perl/lonnet.pm 2003/04/18 13:47:55 1.363
@@ -1,7 +1,7 @@
# The LearningOnline Network
# TCP networking package
#
-# $Id: lonnet.pm,v 1.347 2003/03/23 09:00:51 albertel Exp $
+# $Id: lonnet.pm,v 1.363 2003/04/18 13:47:55 www Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -74,8 +74,8 @@ use HTTP::Headers;
use vars
qw(%perlvar %hostname %homecache %badServerCache %hostip %iphost %spareid %hostdom
%libserv %pr %prp %metacache %packagetab %titlecache
- %courselogs %accesshash $processmarker $dumpcount
- %coursedombuf %coursehombuf %courseresdatacache
+ %courselogs %accesshash %userrolehash $processmarker $dumpcount
+ %coursedombuf %coursenumbuf %coursehombuf %coursedescrbuf %courseresdatacache
%domaindescription %domain_auth_def %domain_auth_arg_def $tmpdir);
use IO::Socket;
use GDBM_File;
@@ -600,12 +600,12 @@ sub assign_access_key {
$uname=$ENV{'user.domain'} unless (defined($uname));
my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
if (($existing{$ckey}=~/^\d+$/) || # has time - new key
- ($existing{$ckey} eq $udom.':'.$uname)) { # this should not happen,
+ ($existing{$ckey} eq $uname.':'.$udom)) { # this should not happen,
# unless something went wrong
# the first time around
# ready to assign
} elsif (!$existing{$ckey}) {
- if (&put('accesskey',{$ckey=>$udom.':'.$uname},$cdom,$cnum) eq 'ok') {
+ if (&put('accesskey',{$ckey=>$uname.':'.$udom},$cdom,$cnum) eq 'ok') {
# key now belongs to user
my $envkey='key.'.$cdom.'_'.$cnum;
if (&put('environment',{$envkey => $ckey}) eq 'ok') {
@@ -634,7 +634,7 @@ sub generate_access_keys {
$ENV{'course.'.$ENV{'request.course.id'}.'.domain'} unless (defined($cdom));
$cnum=
$ENV{'course.'.$ENV{'request.course.id'}.'.num'} unless (defined($cnum));
- unless (&allowed('ccc',$cdom)) { return 0; }
+ unless (&allowed('mky',$cdom)) { return 0; }
unless (($cdom) && ($cnum)) { return 0; }
if ($number>10000) { return 0; }
sleep(2); # make sure don't get same seed twice
@@ -671,7 +671,7 @@ sub validate_access_key {
$udom=$ENV{'user.name'} unless (defined($udom));
$uname=$ENV{'user.domain'} unless (defined($uname));
my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
- return ($existing{$ckey} eq $udom.':'.$uname);
+ return ($existing{$ckey} eq $uname.':'.$udom);
}
# ------------------------------------- Find the section of student in a course
@@ -1027,12 +1027,24 @@ sub log {
}
# ------------------------------------------------------------------ Course Log
+#
+# This routine flushes several buffers of non-mission-critical nature
+#
sub flushcourselogs {
- &logthis('Flushing course log buffers');
+ &logthis('Flushing log buffers');
+#
+# course logs
+# This is a log of all transactions in a course, which can be used
+# for data mining purposes
+#
+# It also collects the courseid database, which lists last transaction
+# times and course titles for all courseids
+#
+ my %courseidbuffer=();
foreach (keys %courselogs) {
my $crsid=$_;
- if (&reply('log:'.$coursedombuf{$crsid}.':'.
+ if (&reply('log:'.$coursedombuf{$crsid}.':'.$coursenumbuf{$crsid}.':'.
&escape($courselogs{$crsid}),
$coursehombuf{$crsid}) eq 'ok') {
delete $courselogs{$crsid};
@@ -1043,9 +1055,26 @@ sub flushcourselogs {
" exceeded maximum size, deleting.</font>");
delete $courselogs{$crsid};
}
- }
+ }
+ if ($courseidbuffer{$coursehombuf{$crsid}}) {
+ $courseidbuffer{$coursehombuf{$crsid}}.='&'.
+ &escape($crsid).'='.&escape($coursedescrbuf{$crsid});
+ } else {
+ $courseidbuffer{$coursehombuf{$crsid}}=
+ &escape($crsid).'='.&escape($coursedescrbuf{$crsid});
+ }
}
- &logthis('Flushing access logs');
+#
+# Write course id database (reverse lookup) to homeserver of courses
+# Is used in pickcourse
+#
+ foreach (keys %courseidbuffer) {
+ &courseidput($hostdom{$_},$courseidbuffer{$_},$_);
+ }
+#
+# File accesses
+# Writes to the dynamic metadata of resources to get hit counts, etc.
+#
foreach (keys %accesshash) {
my $entry=$_;
$entry=~/\_\_\_(\w+)\/(\w+)\/(.*)\_\_\_(\w+)$/;
@@ -1054,6 +1083,20 @@ sub flushcourselogs {
delete $accesshash{$entry};
}
}
+#
+# Roles
+# Reverse lookup of user roles for course faculty/staff and co-authorship
+#
+ foreach (keys %userrolehash) {
+ my $entry=$_;
+ my ($role,$uname,$udom,$runame,$rudom,$rsec)=
+ split(/\:/,$entry);
+ if (&Apache::lonnet::put('nohist_userroles',
+ { $role.':'.$uname.':'.$udom.':'.$rsec => $userrolehash{$entry} },
+ $rudom,$runame) eq 'ok') {
+ delete $userrolehash{$entry};
+ }
+ }
$dumpcount++;
}
@@ -1062,10 +1105,13 @@ sub courselog {
$what=time.':'.$what;
unless ($ENV{'request.course.id'}) { return ''; }
$coursedombuf{$ENV{'request.course.id'}}=
- $ENV{'course.'.$ENV{'request.course.id'}.'.domain'}.':'.
+ $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
+ $coursenumbuf{$ENV{'request.course.id'}}=
$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
$coursehombuf{$ENV{'request.course.id'}}=
$ENV{'course.'.$ENV{'request.course.id'}.'.home'};
+ $coursedescrbuf{$ENV{'request.course.id'}}=
+ $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
if (defined $courselogs{$ENV{'request.course.id'}}) {
$courselogs{$ENV{'request.course.id'}}.='&'.$what;
} else {
@@ -1102,7 +1148,83 @@ sub countacc {
$accesshash{$key}=1;
}
}
-
+
+sub linklog {
+ my ($from,$to)=@_;
+ $from=&declutter($from);
+ $to=&declutter($to);
+ $accesshash{$from.'___'.$to.'___comefrom'}=1;
+ $accesshash{$to.'___'.$from.'___goto'}=1;
+}
+
+sub userrolelog {
+ my ($trole,$username,$domain,$area,$tstart,$tend)=@_;
+ if (($trole=~/^ca/) || ($trole=~/^in/) ||
+ ($trole=~/^cc/) || ($trole=~/^ep/) ||
+ ($trole=~/^cr/)) {
+ my (undef,$rudom,$runame,$rsec)=split(/\//,$area);
+ $userrolehash
+ {$trole.':'.$username.':'.$domain.':'.$runame.':'.$rudom.':'.$rsec}
+ =$tend.':'.$tstart;
+ }
+}
+
+sub get_course_adv_roles {
+ my $cid=shift;
+ $cid=$ENV{'request.course.id'} unless (defined($cid));
+ my %coursehash=&coursedescription($cid);
+ my %returnhash=();
+ my %dumphash=
+ &dump('nohist_userroles',$coursehash{'domain'},$coursehash{'num'});
+ my $now=time;
+ foreach (keys %dumphash) {
+ my ($tend,$tstart)=split(/\:/,$dumphash{$_});
+ if (($tstart) && ($tstart<0)) { next; }
+ if (($tend) && ($tend<$now)) { next; }
+ if (($tstart) && ($now<$tstart)) { next; }
+ my ($role,$username,$domain,$section)=split(/\:/,$_);
+ my $key=&plaintext($role);
+ if ($section) { $key.=' (Sec/Grp '.$section.')'; }
+ if ($returnhash{$key}) {
+ $returnhash{$key}.=','.$username.':'.$domain;
+ } else {
+ $returnhash{$key}=$username.':'.$domain;
+ }
+ }
+ return sort %returnhash;
+}
+
+# ---------------------------------------------------------- Course ID routines
+# Deal with domain's nohist_courseid.db files
+#
+
+sub courseidput {
+ my ($domain,$what,$coursehome)=@_;
+ return &reply('courseidput:'.$domain.':'.$what,$coursehome);
+}
+
+sub courseiddump {
+ my ($domfilter,$descfilter,$sincefilter)=@_;
+ my %returnhash=();
+ unless ($domfilter) { $domfilter=''; }
+ foreach my $tryserver (keys %libserv) {
+ if ((!$domfilter) || ($hostdom{$tryserver} eq $domfilter)) {
+ foreach (
+ split(/\&/,&reply('courseiddump:'.$hostdom{$tryserver}.':'.
+ $sincefilter.':'.&escape($descfilter),
+ $tryserver))) {
+ my ($key,$value)=split(/\=/,$_);
+ if (($key) && ($value)) {
+ $returnhash{&unescape($key)}=&unescape($value);
+ }
+ }
+
+ }
+ }
+ return %returnhash;
+}
+
+#
# ----------------------------------------------------------- Check out an item
sub checkout {
@@ -1707,6 +1829,8 @@ sub rolesinit {
my ($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) {
$trole='';
@@ -2434,7 +2558,7 @@ sub plaintext {
# ----------------------------------------------------------------- Assign Role
sub assignrole {
- my ($udom,$uname,$url,$role,$end,$start)=@_;
+ my ($udom,$uname,$url,$role,$end,$start,$deleteflag)=@_;
my $mrole;
if ($role =~ /^cr\//) {
unless (&allowed('ccr',$url)) {
@@ -2465,7 +2589,24 @@ sub assignrole {
$command.='_0_'.$start;
}
}
- return &reply($command,&homeserver($uname,$udom));
+# actually delete
+ if ($deleteflag) {
+ if (&allowed('dro',$udom)) {
+# modify command to delete the role
+ $command="encrypt:rolesdel:$ENV{'user.domain'}:$ENV{'user.name'}:".
+ "$udom:$uname:$url".'_'."$mrole";
+# set start and finish to negative values for userrolelog
+ $start=-1;
+ $end=-1;
+ }
+ }
+# send command
+ my $answer=&reply($command,&homeserver($uname,$udom));
+# log new user role if status is ok
+ if ($answer eq 'ok') {
+ &userrolelog($mrole,$uname,$udom,$url,$start,$end);
+ }
+ return $answer;
}
# -------------------------------------------------- Modify user authentication
@@ -2711,6 +2852,11 @@ sub createcourse {
return 'error: no such course';
}
# ----------------------------------------------------------------- Course made
+# log existance
+ &courseidput($udom,&escape($udom.'_'.$uname).'='.&escape($description),
+ $uhome);
+ &flushcourselogs();
+# set toplevel url
my $topurl=$url;
unless ($nonstandard) {
# ------------------------------------------ For standard courses, make top url
@@ -2739,25 +2885,26 @@ ENDINITMAP
# ---------------------------------------------------------- Assign Custom Role
sub assigncustomrole {
- my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start)=@_;
+ my ($udom,$uname,$url,$rdom,$rnam,$rolename,$end,$start,$deleteflag)=@_;
return &assignrole($udom,$uname,$url,'cr/'.$rdom.'/'.$rnam.'/'.$rolename,
- $end,$start);
+ $end,$start,$deleteflag);
}
# ----------------------------------------------------------------- Revoke Role
sub revokerole {
- my ($udom,$uname,$url,$role)=@_;
+ my ($udom,$uname,$url,$role,$deleteflag)=@_;
my $now=time;
- return &assignrole($udom,$uname,$url,$role,$now);
+ return &assignrole($udom,$uname,$url,$role,$now,$deleteflag);
}
# ---------------------------------------------------------- Revoke Custom Role
sub revokecustomrole {
- my ($udom,$uname,$url,$rdom,$rnam,$rolename)=@_;
+ my ($udom,$uname,$url,$rdom,$rnam,$rolename,$deleteflag)=@_;
my $now=time;
- return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now);
+ return &assigncustomrole($udom,$uname,$url,$rdom,$rnam,$rolename,$now,
+ $deleteflag);
}
# ------------------------------------------------------------ Directory lister
@@ -2955,8 +3102,10 @@ sub EXT {
unless ($varname) { return ''; }
#get real user name/domain, courseid and symb
my $courseid;
+ my $publicuser;
if (!($uname && $udom)) {
- (my $cursymb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
+ (my $cursymb,$courseid,$udom,$uname,$publicuser)=
+ &Apache::lonxml::whichuser();
if (!$symbparm) { $symbparm=$cursymb; }
} else {
$courseid=$ENV{'request.course.id'};
@@ -2979,7 +3128,12 @@ sub EXT {
if (defined($Apache::lonhomework::parsing_a_problem)) {
return $Apache::lonhomework::history{$qualifierrest};
} else {
- my %restored=&restore($symbparm,$courseid,$udom,$uname);
+ my %restored;
+ if ($publicuser || $ENV{'request.state'} eq 'construct') {
+ %restored=&tmprestore($symbparm,$courseid,$udom,$uname);
+ } else {
+ %restored=&restore($symbparm,$courseid,$udom,$uname);
+ }
return $restored{$qualifierrest};
}
# ----------------------------------------------------------------- user.access
@@ -2992,7 +3146,11 @@ sub EXT {
($udom eq $ENV{'user.domain'})) {
return $ENV{join('.',('environment',$qualifierrest))};
} else {
- my %returnhash=&userenvironment($udom,$uname,$qualifierrest);
+ my %returnhash;
+ if (!$publicuser) {
+ %returnhash=&userenvironment($udom,$uname,
+ $qualifierrest);
+ }
return $returnhash{$qualifierrest};
}
# ----------------------------------------------------------------- user.course
@@ -3016,8 +3174,11 @@ sub EXT {
return $uname;
# ---------------------------------------------------- Any other user namespace
} else {
- my %reply=&get($space,[$qualifierrest],$udom,$uname);
- return $reply{$qualifierrest};
+ my %reply;
+ if (!$publicuser) {
+ %reply=&get($space,[$qualifierrest],$udom,$uname);
+ }
+ return $reply{$qualifierrest};
}
} elsif ($realm eq 'query') {
# ---------------------------------------------- pull stuff out of query string
@@ -3036,7 +3197,7 @@ sub EXT {
return $ENV{'course.'.$courseid.'.'.$spacequalifierrest};
} elsif ($realm eq 'resource') {
- if ($courseid eq $ENV{'request.course.id'}) {
+ if (defined($courseid) && $courseid eq $ENV{'request.course.id'}) {
#print '<br>'.$space.' - '.$qualifier.' - '.$spacequalifierrest;
@@ -3236,16 +3397,20 @@ sub metadata {
$value.=' [Part: '.$part.']';
}
my $unikey='parameter'.$keyroot.'_'.$name;
- if ($subp eq 'default') { $unikey='parameter_0_'.$name; }
- $metathesekeys{$unikey}=1;
- $metacache{$uri.':'.$unikey.'.part'}=$part;
+ if ($subp eq 'default') {
+ $unikey='parameter_0_'.$name;
+ $metacache{$uri.':'.$unikey.'.part'}='0';
+ } else {
+ $metacache{$uri.':'.$unikey.'.part'}=$part;
+ $metathesekeys{$unikey}=1;
+ }
unless (defined($metacache{$uri.':'.$unikey.'.'.$subp})) {
$metacache{$uri.':'.$unikey.'.'.$subp}=$value;
}
if (defined($metacache{$uri.':'.$unikey.'.default'})) {
$metacache{$uri.':'.$unikey}=
- $metacache{$uri.':'.$unikey.'.default'}
- }
+ $metacache{$uri.':'.$unikey.'.default'};
+ }
}
}
} else {
@@ -3341,7 +3506,7 @@ sub metadata_generate_part0 {
if ($metakey=~/^parameter\_(.*)/) {
my $part=$$metacache{$uri.':'.$metakey.'.part'};
my $name=$$metacache{$uri.':'.$metakey.'.name'};
- if (! exists($$metadata{'parameter_0_'.$name})) {
+ if (! exists($$metadata{'parameter_0_'.$name.'.name'})) {
$allnames{$name}=$part;
}
}
@@ -3381,6 +3546,7 @@ sub gettitle {
$title=$bighash{'title_'.$mapid.'.'.$resid};
untie %bighash;
}
+ $title=~s/\&colon\;/\:/gs;
if ($title) {
$titlecache{$symb}=$title;
return $title;
@@ -3702,6 +3868,7 @@ sub goodbye {
&logthis("Starting Shut down");
&flushcourselogs();
&logthis("Shutting down");
+ return DONE;
}
BEGIN {