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Diff for /loncom/lond between versions 1.489.2.43.2.1 and 1.489.2.43.2.2

version 1.489.2.43.2.1, 2021/12/31 14:50:30 version 1.489.2.43.2.2, 2022/02/07 12:12:07
Line 4767  sub encrypted_get_domain_handler { Line 4767  sub encrypted_get_domain_handler {
 &register_handler("egetdom", \&encrypted_get_domain_handler, 1, 1, 0);  &register_handler("egetdom", \&encrypted_get_domain_handler, 1, 1, 0);
   
 #  #
   # Encrypted get from the namespace database file at the domain level.
   # This function retrieves a keyed item from a specific named database in the
   # domain directory.
   #
   # Parameters:
   #   $cmd             - Command request keyword (lti).
   #   $tail            - Tail of the command.  This is a colon-separated list
   #                      consisting of the domain, coursenum, if for LTI-
   #                      enabled deep-linking to course content using
   #                      link protection configured within a course,
   #                      context (=deeplink) if for LTI-enabled deep-linking
   #                      to course content using LTI Provider settings
   #                      configured within a course's domain, the (escaped)
   #                      launch URL, the (escaped) method (typically POST),
   #                      and a frozen hash of the LTI launch parameters
   #                      from the LTI payload.
   #   $client          - File descriptor open on the client.
   # Returns:
   #   1       - Continue processing.
   #   0       - Exit.
   #  Side effects:
   #     The reply will contain an LTI itemID, if the signed LTI payload
   #     could be verified using the consumer key and the shared secret
   #     available for that key (for the itemID) for either the course or domain,
   #     depending on values for cnum and context. The reply is encrypted before
   #     being written to $client.
   #
   sub lti_handler {
       my ($cmd, $tail, $client) = @_;
   
       my $userinput = "$cmd:$tail";
   
       my ($cdom,$cnum,$context,$escurl,$escmethod,$items) = split(/:/,$tail);
       my $url = &unescape($escurl);
       my $method = &unescape($escmethod);
       my $params = &Apache::lonnet::thaw_unescape($items);
       my $res;
       if ($cnum ne '') {
           $res = &LONCAPA::Lond::crslti_itemid($cdom,$cnum,$url,$method,$params,$perlvar{'lonVersion'});
       } else {
           $res = &LONCAPA::Lond::domlti_itemid($cdom,$context,$url,$method,$params,$perlvar{'lonVersion'});
       }
       if ($res =~ /^error:/) {
           &Failure($client, \$res, $userinput);
       } else {
           if ($cipher) {
               my $cmdlength=length($res);
               $res.="         ";
               my $encres='';
               for (my $encidx=0;$encidx<=$cmdlength;$encidx+=8) {
                   $encres.= unpack("H16",
                                    $cipher->encrypt(substr($res,
                                                            $encidx,
                                                            8)));
               }
               &Reply( $client,"enc:$cmdlength:$encres\n",$userinput);
           } else {
               &Failure( $client, "error:no_key\n",$userinput);
           }
       }
       return 1;
   }
   &register_handler("lti", \&lti_handler, 1, 1, 0);
   
   #
 #  Puts an id to a domains id database.   #  Puts an id to a domains id database. 
 #  #
 #  Parameters:  #  Parameters:
Removed from v.1.489.2.43.2.1  
changed lines
  Added in v.1.489.2.43.2.2

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