[LON-CAPA-cvs] cvs: loncom(version_2_11_X) /interface loncommon.pm

[raeburn]

raeburn		Sat Feb 15 18:25:14 2014 EDT

  Modified files:              (Branch: version_2_11_X)
    /loncom/interface	loncommon.pm 
  Log:
  - For 2.11
    - Backport 1.1174.
  
  
Index: loncom/interface/loncommon.pm
diff -u loncom/interface/loncommon.pm:1.1075.2.63 loncom/interface/loncommon.pm:1.1075.2.64
--- loncom/interface/loncommon.pm:1.1075.2.63	Fri Jan  3 20:04:35 2014
+++ loncom/interface/loncommon.pm	Sat Feb 15 18:25:13 2014
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.1075.2.63 2014/01/03 20:04:35 raeburn Exp $
+# $Id: loncommon.pm,v 1.1075.2.64 2014/02/15 18:25:13 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -74,6 +74,8 @@
 use DateTime::Locale::Catalog;
 use Authen::Captcha;
 use Captcha::reCAPTCHA;
+use Crypt::DES;
+use DynaLoader; # for Crypt::DES version
 
 # ---------------------------------------------- Designs
 use vars qw(%defaultdesign);
@@ -15041,6 +15043,19 @@
     return $captcha_chk;
 }
 
+sub emailusername_info {
+    my @fields = ('lastname','firstname','institution','web','location','officialemail');
+    my %titles = &Apache::lonlocal::texthash (
+                     lastname      => 'Last Name',
+                     firstname     => 'First Name',
+                     institution   => 'School/college/university',
+                     location      => "School's city, state/province, country",
+                     web           => "School's web address",
+                     officialemail => 'E-mail address at institution (if different)',
+                 );
+    return (\@fields,\%titles);
+}
+
 sub cleanup_html {
     my ($incoming) = @_;
     my $outgoing;
@@ -15063,6 +15078,48 @@
     return $outgoing;
 }
 
+# Use:
+#   my $answer=reply("encrypt:passwd:$udom:$uname:$upass",$tryserver);
+#
+##################################################
+#          password associated functions         #
+##################################################
+sub des_keys {
+    # Make a new key for DES encryption.
+    # Each key has two parts which are returned separately.
+    # Please note:  Each key must be passed through the &hex function
+    # before it is output to the web browser.  The hex versions cannot
+    # be used to decrypt.
+    my @hexstr=('0','1','2','3','4','5','6','7',
+                '8','9','a','b','c','d','e','f');
+    my $lkey='';
+    for (0..7) {
+        $lkey.=$hexstr[rand(15)];
+    }
+    my $ukey='';
+    for (0..7) {
+        $ukey.=$hexstr[rand(15)];
+    }
+    return ($lkey,$ukey);
+}
+
+sub des_decrypt {
+    my ($key,$cyphertext) = @_;
+    my $keybin=pack("H16",$key);
+    my $cypher;
+    if ($Crypt::DES::VERSION>=2.03) {
+        $cypher=new Crypt::DES $keybin;
+    } else {
+        $cypher=new DES $keybin;
+    }
+    my $plaintext=
+        $cypher->decrypt(unpack("a8",pack("H16",substr($cyphertext,0,16))));
+    $plaintext.=
+        $cypher->decrypt(unpack("a8",pack("H16",substr($cyphertext,16,16))));
+    $plaintext=substr($plaintext,1,ord(substr($plaintext,0,1)) );
+    return $plaintext;
+}
+
 =pod
 
 =back