--- loncom/lonnet/perl/lonnet.pm 2006/10/04 19:48:32 1.788
+++ loncom/lonnet/perl/lonnet.pm 2006/10/13 04:23:15 1.791
@@ -1,7 +1,7 @@
# The LearningOnline Network
# TCP networking package
#
-# $Id: lonnet.pm,v 1.788 2006/10/04 19:48:32 albertel Exp $
+# $Id: lonnet.pm,v 1.791 2006/10/13 04:23:15 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -52,6 +52,7 @@ use Storable qw(lock_store lock_nstore l
use Time::HiRes qw( gettimeofday tv_interval );
use Cache::Memcached;
use Digest::MD5;
+use Math::Random;
use lib '/home/httpd/lib/perl';
use LONCAPA;
use LONCAPA::Configuration;
@@ -412,6 +413,31 @@ sub delenv {
return 'ok';
}
+=pod
+
+=item * get_env_multiple($name)
+
+gets $name from the %env hash, it seemlessly handles the cases where multiple
+values may be defined and end up as an array ref.
+
+returns an array of values
+
+=cut
+
+sub get_env_multiple {
+ my ($name) = @_;
+ my @values;
+ if (defined($env{$name})) {
+ # exists is it an array
+ if (ref($env{$name})) {
+ @values=@{ $env{$name} };
+ } else {
+ $values[0]=$env{$name};
+ }
+ }
+ return(@values);
+}
+
# ------------------------------------------ Find out current server userload
# there is a copy in lond
sub userload {
@@ -1184,15 +1210,6 @@ sub absolute_url {
return $protocol.$host_name;
}
-sub absolute_url {
- my ($host_name) = @_;
- my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');
- if ($host_name eq '') {
- $host_name = $ENV{'SERVER_NAME'};
- }
- return $protocol.$host_name;
-}
-
sub ssi {
my ($fn,%form)=@_;
@@ -1962,7 +1979,7 @@ sub courseidput {
}
sub courseiddump {
- my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,$coursefilter,$hostidflag,$hostidref,$typefilter)=@_;
+ my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,$coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok)=@_;
my %returnhash=();
unless ($domfilter) { $domfilter=''; }
foreach my $tryserver (keys %libserv) {
@@ -1971,7 +1988,7 @@ sub courseiddump {
foreach (
split(/\&/,&reply('courseiddump:'.$hostdom{$tryserver}.':'.
$sincefilter.':'.&escape($descfilter).':'.
- &escape($instcodefilter).':'.&escape($ownerfilter).':'.&escape($coursefilter).':'.&escape($typefilter),
+ &escape($instcodefilter).':'.&escape($ownerfilter).':'.&escape($coursefilter).':'.&escape($typefilter).':'.&escape($regexp_ok),
$tryserver))) {
my ($key,$value)=split(/\=/,$_);
if (($key) && ($value)) {
@@ -2044,7 +2061,7 @@ sub get_domain_roles {
sub get_first_access {
my ($type,$argsymb)=@_;
- my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
+ my ($symb,$courseid,$udom,$uname)=&whichuser();
if ($argsymb) { $symb=$argsymb; }
my ($map,$id,$res)=&decode_symb($symb);
if ($type eq 'map') {
@@ -2058,7 +2075,7 @@ sub get_first_access {
sub set_first_access {
my ($type)=@_;
- my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
+ my ($symb,$courseid,$udom,$uname)=&whichuser();
my ($map,$id,$res)=&decode_symb($symb);
if ($type eq 'map') {
$res=&symbread($map);
@@ -5519,8 +5536,7 @@ sub EXT {
$symbparm=&get_symb_from_alias($symbparm);
}
if (!($uname && $udom)) {
- (my $cursymb,$courseid,$udom,$uname,$publicuser)=
- &Apache::lonxml::whichuser($symbparm);
+ (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
if (!$symbparm) { $symbparm=$cursymb; }
} else {
$courseid=$env{'request.course.id'};
@@ -6174,7 +6190,7 @@ sub gettitle {
sub get_slot {
my ($which,$cnum,$cdom)=@_;
if (!$cnum || !$cdom) {
- (undef,my $courseid)=&Apache::lonxml::whichuser();
+ (undef,my $courseid)=&whichuser();
$cdom=$env{'course.'.$courseid.'.domain'};
$cnum=$env{'course.'.$courseid.'.num'};
}
@@ -6505,7 +6521,7 @@ sub latest_rnd_algorithm_id {
sub get_rand_alg {
my ($courseid)=@_;
- if (!$courseid) { $courseid=(&Apache::lonxml::whichuser())[1]; }
+ if (!$courseid) { $courseid=(&whichuser())[1]; }
if ($courseid) {
return $env{"course.$courseid.rndseed"};
}
@@ -6531,7 +6547,7 @@ sub getCODE {
sub rndseed {
my ($symb,$courseid,$domain,$username)=@_;
- my ($wsymb,$wcourseid,$wdomain,$wusername)=&Apache::lonxml::whichuser();
+ my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
if (!$symb) {
unless ($symb=$wsymb) { return time; }
}
@@ -6572,8 +6588,8 @@ sub rndseed_32bit {
my $domainseed=unpack("%32C*",$domain) << 7;
my $courseseed=unpack("%32C*",$courseid);
my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
- #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
- #&Apache::lonxml::debug("rndseed :$num:$symb");
+ #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
+ #&logthis("rndseed :$num:$symb");
if ($_64bit) { $num=(($num<<32)>>32); }
return $num;
}
@@ -6593,8 +6609,8 @@ sub rndseed_64bit {
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");
+ #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
+ #&logthis("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";
@@ -6617,8 +6633,8 @@ sub rndseed_64bit2 {
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");
+ #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
+ #&logthis("rndseed :$num:$symb");
return "$num1,$num2";
}
}
@@ -6639,8 +6655,8 @@ 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 :$num1:$num2:$_64bit");
+ #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
+ #&logthis("rndseed :$num1:$num2:$_64bit");
if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
return "$num1:$num2";
@@ -6663,8 +6679,8 @@ sub rndseed_64bit4 {
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:$_64bit");
+ #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
+ #&logthis("rndseed :$num1:$num2:$_64bit");
if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
return "$num1:$num2";
@@ -6688,8 +6704,8 @@ sub rndseed_CODE_64bit {
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");
+ #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
+ #&logthis("rndseed :$num1:$num2:$symb");
if ($_64bit) { $num1=(($num1<<32)>>32); }
if ($_64bit) { $num2=(($num2<<32)>>32); }
return "$num1:$num2";
@@ -6707,8 +6723,8 @@ sub rndseed_CODE_64bit4 {
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");
+ #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
+ #&logthis("rndseed :$num1:$num2:$symb");
if ($_64bit) { $num1=(($num1<<32)>>32); }
if ($_64bit) { $num2=(($num2<<32)>>32); }
return "$num1:$num2";
@@ -6769,8 +6785,7 @@ sub ireceipt {
my $return =&recprefix($fucourseid).'-';
if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
$env{'request.state'} eq 'construct') {
- &Apache::lonxml::debug("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname).
- " and ".($cpart%$cudom));
+ #&logthis("doing receipt2 using parts $cpart, uname $cuname and udom $cudom gets ".($cpart%$cuname)." and ".($cpart%$cudom));
$return.= ($cunique%$cuname+
$cunique%$cudom+
@@ -6793,10 +6808,48 @@ sub ireceipt {
sub receipt {
my ($part)=@_;
- my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
+ my ($symb,$courseid,$domain,$name) = &whichuser();
return &ireceipt($name,$domain,$courseid,$symb,$part);
}
+sub whichuser {
+ my ($passedsymb)=@_;
+ my ($symb,$courseid,$domain,$name,$publicuser);
+ if (defined($env{'form.grade_symb'})) {
+ my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
+ my $allowed=&allowed('vgr',$tmp_courseid);
+ if (!$allowed &&
+ exists($env{'request.course.sec'}) &&
+ $env{'request.course.sec'} !~ /^\s*$/) {
+ $allowed=&allowed('vgr',$tmp_courseid.
+ '/'.$env{'request.course.sec'});
+ }
+ if ($allowed) {
+ ($symb)=&get_env_multiple('form.grade_symb');
+ $courseid=$tmp_courseid;
+ ($domain)=&get_env_multiple('form.grade_domain');
+ ($name)=&get_env_multiple('form.grade_username');
+ return ($symb,$courseid,$domain,$name,$publicuser);
+ }
+ }
+ if (!$passedsymb) {
+ $symb=&symbread();
+ } else {
+ $symb=$passedsymb;
+ }
+ $courseid=$env{'request.course.id'};
+ $domain=$env{'user.domain'};
+ $name=$env{'user.name'};
+ if ($name eq 'public' && $domain eq 'public') {
+ if (!defined($env{'form.username'})) {
+ $env{'form.username'}.=time.rand(10000000);
+ }
+ $name.=$env{'form.username'};
+ }
+ return ($symb,$courseid,$domain,$name,$publicuser);
+
+}
+
# ------------------------------------------------------------ Serves up a file
# returns either the contents of the file or
# -1 if the file doesn't exist