--- loncom/lonnet/perl/lonnet.pm	2005/10/31 19:32:19	1.673
+++ loncom/lonnet/perl/lonnet.pm	2005/11/15 18:30:41	1.676
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.673 2005/10/31 19:32:19 albertel Exp $
+# $Id: lonnet.pm,v 1.676 2005/11/15 18:30:41 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -49,10 +49,11 @@ use Apache::Constants qw(:common :http);
 use HTML::LCParser;
 use HTML::Parser;
 use Fcntl qw(:flock);
-use Apache::lonlocal;
 use Storable qw(lock_store lock_nstore lock_retrieve freeze thaw nfreeze);
 use Time::HiRes qw( gettimeofday tv_interval );
 use Cache::Memcached;
+use Digest::MD5;
+
 my $readit;
 my $max_connection_retries = 10;     # Or some such value.
 
@@ -3656,7 +3657,7 @@ sub auto_instcode_format {
 
 sub plaintext {
     my $short=shift;
-    return &mt($prp{$short});
+    return &Apache::lonlocal::mt($prp{$short});
 }
 
 # ----------------------------------------------------------------- Assign Role
@@ -3974,7 +3975,9 @@ sub createcourse {
         return 'refused';
     }
 # ------------------------------------------------------------------- Create ID
-   my $uname=substr($$.time,0,5).unpack("H8",pack("I32",time)).
+   my $uname=int(1+rand(9)).
+       ('a'..'z','A'..'Z','0'..'9')[int(rand(62))].
+       substr($$.time,0,5).unpack("H8",pack("I32",time)).
        unpack("H2",pack("I32",int(rand(255)))).$perlvar{'lonHostID'};
 # ----------------------------------------------- Make sure that does not exist
    my $uhome=&homeserver($uname,$udom,'true');
@@ -4636,7 +4639,7 @@ sub EXT {
 # ------------------------------------------------------------- request.browser
         if ($space eq 'browser') {
 	    if ($qualifier eq 'textremote') {
-		if (&mt('textual_remote_display') eq 'on') {
+		if (&Apache::lonlocal::mt('textual_remote_display') eq 'on') {
 		    return 1;
 		} else {
 		    return 0;
@@ -5377,8 +5380,37 @@ sub numval3 {
     return $total;
 }
 
+sub digest {
+    my ($data)=@_;
+    my $digest=&Digest::MD5::md5($data);
+    my ($a,$b,$c,$d)=unpack("iiii",$digest);
+    my ($e,$f);
+    {
+        use integer;
+        $e=($a+$b);
+        $f=($c+$d);
+        if ($_64bit) {
+            $e=(($e<<32)>>32);
+            $f=(($f<<32)>>32);
+        }
+    }
+    if (wantarray) {
+	return ($e,$f);
+    } else {
+	my $g;
+	{
+	    use integer;
+	    $g=($e+$f);
+	    if ($_64bit) {
+		$g=(($g<<32)>>32);
+	    }
+	}
+	return $g;
+    }
+}
+
 sub latest_rnd_algorithm_id {
-    return '64bit4';
+    return '64bit5';
 }
 
 sub get_rand_alg {
@@ -5418,11 +5450,15 @@ sub rndseed {
     if (!$username) { $username=$wusername }
     my $which=&get_rand_alg();
     if (defined(&getCODE())) {
-	if ($which eq '64bit4') {
+	if ($which eq '64bit5') {
+	    return &rndseed_CODE_64bit5($symb,$courseid,$domain,$username);
+	} elsif ($which eq '64bit4') {
 	    return &rndseed_CODE_64bit4($symb,$courseid,$domain,$username);
 	} else {
 	    return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
 	}
+    } elsif ($which eq '64bit5') {
+	return &rndseed_64bit5($symb,$courseid,$domain,$username);
     } elsif ($which eq '64bit4') {
 	return &rndseed_64bit4($symb,$courseid,$domain,$username);
     } elsif ($which eq '64bit3') {
@@ -5545,6 +5581,12 @@ sub rndseed_64bit4 {
     }
 }
 
+sub rndseed_64bit5 {
+    my ($symb,$courseid,$domain,$username)=@_;
+    my ($num1,$num2)=&digest("$symb,$courseid,$domain,$username");
+    return "$num1:$num2";
+}
+
 sub rndseed_CODE_64bit {
     my ($symb,$courseid,$domain,$username)=@_;
     {
@@ -5583,6 +5625,13 @@ sub rndseed_CODE_64bit4 {
     }
 }
 
+sub rndseed_CODE_64bit5 {
+    my ($symb,$courseid,$domain,$username)=@_;
+    my $code = &getCODE();
+    my ($num1,$num2)=&digest("$symb,$courseid,$code");
+    return "$num1:$num2";
+}
+
 sub setup_random_from_rndseed {
     my ($rndseed)=@_;
     if ($rndseed =~/([,:])/) {