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Diff for /loncom/lond between versions 1.243 and 1.247

version 1.243, 2004/08/27 18:34:31 version 1.247, 2004/09/02 18:37:44
Line 1299  sub push_file_handler { Line 1299  sub push_file_handler {
 # Side Effects:  # Side Effects:
 #   The reply is written to  $client.  #   The reply is written to  $client.
 #  #
   
 sub du_handler {  sub du_handler {
     my ($cmd, $ududir, $client) = @_;      my ($cmd, $ududir, $client) = @_;
     my $userinput = "$cmd:$ududir";      if ($ududir=~/\.\./ || $ududir!~m|^/home/httpd/|) {
     my $obs;   &Failure($client,"refused\n","$cmd:$ududir");
     my $rights;   return 1;
     my $uduout='';      }
     my $udufn;      my $duout = `du -ks $ududir 2>/dev/null`;
     print $client "from lond not yet\n";      $duout=~s/[^\d]//g; #preserve only the numbers
       &Reply($client,"$duout\n","$cmd:$ududir");
     return 1;      return 1;
 }  }
 &register_handler("du", \&du_handler, 0, 1, 0);  &register_handler("du", \&du_handler, 0, 1, 0);
   
   
   
 #  #
 #   ls  - list the contents of a directory.  For each file in the  #   ls  - list the contents of a directory.  For each file in the
 #    selected directory the filename followed by the full output of  #    selected directory the filename followed by the full output of
Line 3368  sub tmp_del_handler { Line 3369  sub tmp_del_handler {
 }  }
 &register_handler("tmpdel", \&tmp_del_handler, 0, 1, 0);  &register_handler("tmpdel", \&tmp_del_handler, 0, 1, 0);
 #  #
   #   Processes the setannounce command.  This command
   #   creates a file named announce.txt in the top directory of
   #   the documentn root and sets its contents.  The announce.txt file is
   #   printed in its entirety at the LonCAPA login page.  Note:
   #   once the announcement.txt fileis created it cannot be deleted.
   #   However, setting the contents of the file to empty removes the
   #   announcement from the login page of loncapa so who cares.
   #
   # Parameters:
   #    $cmd          - The command that got us dispatched.
   #    $announcement - The text of the announcement.
   #    $client       - Socket open on the client process.
   # Retunrns:
   #   1             - Indicating request processing should continue
   # Side Effects:
   #   The file {DocRoot}/announcement.txt is created.
   #   A reply is sent to $client.
   #
   sub set_announce_handler {
       my ($cmd, $announcement, $client) = @_;
     
       my $userinput    = "$cmd:$announcement";
   
       chomp($announcement);
       $announcement=&unescape($announcement);
       if (my $store=IO::File->new('>'.$perlvar{'lonDocRoot'}.
    '/announcement.txt')) {
    print $store $announcement;
    close $store;
    &Reply($client, "ok\n", $userinput);
       } else {
    &Failure($client, "error: ".($!+0)."\n", $userinput);
       }
   
       return 1;
   }
   &register_handler("setannounce", \&set_announce_handler, 0, 1, 0);
   #
   #  Return the version of the daemon.  This can be used to determine
   #  the compatibility of cross version installations or, alternatively to
   #  simply know who's out of date and who isn't.  Note that the version
   #  is returned concatenated with the tail.
   # Parameters:
   #   $cmd        - the request that dispatched to us.
   #   $tail       - Tail of the request (client's version?).
   #   $client     - Socket open on the client.
   #Returns:
   #   1 - continue processing requests.
   # Side Effects:
   #   Replies with version to $client.
   sub get_version_handler {
       my ($cmd, $tail, $client) = @_;
   
       my $userinput  = $cmd.$tail;
       
       &Reply($client, &version($userinput)."\n", $userinput);
   
   
       return 1;
   }
   &register_handler("version", \&get_version_handler, 0, 1, 0);
   #  Set the current host and domain.  This is used to support
   #  multihomed systems.  Each IP of the system, or even separate daemons
   #  on the same IP can be treated as handling a separate lonCAPA virtual
   #  machine.  This command selects the virtual lonCAPA.  The client always
   #  knows the right one since it is lonc and it is selecting the domain/system
   #  from the hosts.tab file.
   # Parameters:
   #    $cmd      - Command that dispatched us.
   #    $tail     - Tail of the command (domain/host requested).
   #    $socket   - Socket open on the client.
   #
   # Returns:
   #     1   - Indicates the program should continue to process requests.
   # Side-effects:
   #     The default domain/system context is modified for this daemon.
   #     a reply is sent to the client.
   #
   sub set_virtual_host_handler {
       my ($cmd, $tail, $socket) = @_;
     
       my $userinput  ="$cmd:$tail";
   
       &Reply($client, &sethost($userinput)."\n", $userinput);
   
   
       return 1;
   }
   &register_handler("sethost", \&set_virtual_host_handler, 0, 1, 0);
   
   #  Process a request to exit:
   #   - "bye" is sent to the client.
   #   - The client socket is shutdown and closed.
   #   - We indicate to the caller that we should exit.
   # Formal Parameters:
   #   $cmd                - The command that got us here.
   #   $tail               - Tail of the command (empty).
   #   $client             - Socket open on the tail.
   # Returns:
   #   0      - Indicating the program should exit!!
   #
   sub exit_handler {
       my ($cmd, $tail, $client) = @_;
   
       my $userinput = "$cmd:$tail";
   
       &logthis("Client $clientip ($clientname) hanging up: $userinput");
       &Reply($client, "bye\n", $userinput);
       $client->shutdown(2);        # shutdown the socket forcibly.
       $client->close();
   
       return 0;
   }
   &register_handler("exit", \&exit_handler, 0,,1);
   &register_handler("init", \&exit_handler, 0,,1);
   &register_handler("quit", \&exit_handler, 0,,1);
   
   
   #
   #
 #  #
 #  #
 #  #
Line 3484  sub process_request { Line 3605  sub process_request {
   
 #------------------- Commands not yet in spearate handlers. --------------  #------------------- Commands not yet in spearate handlers. --------------
   
   
   
 # ----------------------------------------------------------------- setannounce  
     if ($userinput =~ /^setannounce/) {  
  if (isClient) {  
     my ($cmd,$announcement)=split(/:/,$userinput);  
     chomp($announcement);  
     $announcement=&unescape($announcement);  
     if (my $store=IO::File->new('>'.$perlvar{'lonDocRoot'}.  
  '/announcement.txt')) {  
  print $store $announcement;  
  close $store;  
  print $client "ok\n";  
     } else {  
  print $client "error: ".($!+0)."\n";  
     }  
  } else {  
     Reply($client, "refused\n", $userinput);  
       
  }  
 # ------------------------------------------------------------------ Hanging up  
     } elsif (($userinput =~ /^exit/) ||  
      ($userinput =~ /^init/)) { # no restrictions.  
  &logthis(  
  "Client $clientip ($clientname) hanging up: $userinput");  
  print $client "bye\n";  
  $client->shutdown(2);        # shutdown the socket forcibly.  
  $client->close();  
  return 0;  
   
 # ---------------------------------- set current host/domain  
     } elsif ($userinput =~ /^sethost/) {  
  if (isClient) {  
     print $client &sethost($userinput)."\n";  
  } else {  
     print $client "refused\n";  
  }  
 #---------------------------------- request file (?) version.  
     } elsif ($userinput =~/^version/) {  
  if (isClient) {  
     print $client &version($userinput)."\n";  
  } else {  
     print $client "refused\n";  
  }  
 #------------------------------- is auto-enrollment enabled?  #------------------------------- is auto-enrollment enabled?
     } elsif ($userinput =~/^autorun/) {      if ($userinput =~/^autorun/) {
  if (isClient) {   if (isClient) {
     my ($cmd,$cdom) = split(/:/,$userinput);      my ($cmd,$cdom) = split(/:/,$userinput);
     my $outcome = &localenroll::run($cdom);      my $outcome = &localenroll::run($cdom);
Removed from v.1.243  
changed lines
  Added in v.1.247

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