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Diff for /loncom/lond between versions 1.236 and 1.246

version 1.236, 2004/08/24 06:43:21 version 1.246, 2004/09/02 09:27:58
Line 1282  sub push_file_handler { Line 1282  sub push_file_handler {
 }  }
 &register_handler("pushfile", \&push_file_handler, 1, 0, 1);  &register_handler("pushfile", \&push_file_handler, 1, 0, 1);
   
   #
   #   du  - list the disk usuage of a directory recursively. 
   #    
   #   note: stolen code from the ls file handler
   #   under construction by Rick Banghart 
   #    .
   # Parameters:
   #    $cmd        - The command that dispatched us (du).
   #    $ududir     - The directory path to list... I'm not sure what this
   #                  is relative as things like ls:. return e.g.
   #                  no_such_dir.
   #    $client     - Socket open on the client.
   # Returns:
   #     1 - indicating that the daemon should not disconnect.
   # Side Effects:
   #   The reply is written to  $client.
   #
   
   sub du_handler {
       my ($cmd, $ududir, $client) = @_;
       if ($ududir=~/\.\./ || $ududir!~m|^/home/httpd/|) {
    &Failure($client,"refused\n","$cmd:$ududir");
    return 1;
       }
       my $duout = `du -ks $ududir 2>/dev/null`;
       $duout=~s/[^\d]//g; #preserve only the numbers
       &Reply($client,"$duout\n","$cmd:$ududir");
       return 1;
   }
   &register_handler("du", \&du_handler, 0, 1, 0);
   
   
   #
   #   ls  - list the contents of a directory.  For each file in the
   #    selected directory the filename followed by the full output of
   #    the stat function is returned.  The returned info for each
   #    file are separated by ':'.  The stat fields are separated by &'s.
   # Parameters:
   #    $cmd        - The command that dispatched us (ls).
   #    $ulsdir     - The directory path to list... I'm not sure what this
   #                  is relative as things like ls:. return e.g.
   #                  no_such_dir.
   #    $client     - Socket open on the client.
   # Returns:
   #     1 - indicating that the daemon should not disconnect.
   # Side Effects:
   #   The reply is written to  $client.
   #
   sub ls_handler {
       my ($cmd, $ulsdir, $client) = @_;
   
       my $userinput = "$cmd:$ulsdir";
   
       my $obs;
       my $rights;
       my $ulsout='';
       my $ulsfn;
       if (-e $ulsdir) {
    if(-d $ulsdir) {
       if (opendir(LSDIR,$ulsdir)) {
    while ($ulsfn=readdir(LSDIR)) {
       undef $obs, $rights; 
       my @ulsstats=stat($ulsdir.'/'.$ulsfn);
       #We do some obsolete checking here
       if(-e $ulsdir.'/'.$ulsfn.".meta") { 
    open(FILE, $ulsdir.'/'.$ulsfn.".meta");
    my @obsolete=<FILE>;
    foreach my $obsolete (@obsolete) {
       if($obsolete =~ m|(<obsolete>)(on)|) { $obs = 1; } 
       if($obsolete =~ m|(<copyright>)(default)|) { $rights = 1; }
    }
       }
       $ulsout.=$ulsfn.'&'.join('&',@ulsstats);
       if($obs eq '1') { $ulsout.="&1"; }
       else { $ulsout.="&0"; }
       if($rights eq '1') { $ulsout.="&1:"; }
       else { $ulsout.="&0:"; }
    }
    closedir(LSDIR);
       }
    } else {
       my @ulsstats=stat($ulsdir);
       $ulsout.=$ulsfn.'&'.join('&',@ulsstats).':';
    }
       } else {
    $ulsout='no_such_dir';
       }
       if ($ulsout eq '') { $ulsout='empty'; }
       print $client "$ulsout\n";
       
       return 1;
   
   }
   &register_handler("ls", \&ls_handler, 0, 1, 0);
   
   
   
   
 #   Process a reinit request.  Reinit requests that either  #   Process a reinit request.  Reinit requests that either
Line 1843  sub remove_user_file_handler { Line 1939  sub remove_user_file_handler {
  if (-e $udir) {   if (-e $udir) {
     my $file=$udir.'/userfiles/'.$ufile;      my $file=$udir.'/userfiles/'.$ufile;
     if (-e $file) {      if (-e $file) {
  unlink($file);          if (-f $file){
       unlink($file);
    } elsif(-d $file) {
       rmdir($file);
    }
  if (-e $file) {   if (-e $file) {
     &Failure($client, "failed\n", "$cmd:$tail");      &Failure($client, "failed\n", "$cmd:$tail");
  } else {   } else {
Line 1902  sub mkdir_user_file_handler { Line 2002  sub mkdir_user_file_handler {
 }  }
 &register_handler("mkdiruserfile", \&mkdir_user_file_handler, 0,1,0);  &register_handler("mkdiruserfile", \&mkdir_user_file_handler, 0,1,0);
   
   #
   #   rename a file in a user's home directory userfiles subdirectory.
   # Parameters:
   #    cmd   - the Lond request keyword that got us here.
   #    tail  - the part of the command past the keyword.
   #    client- File descriptor connected with the client.
   #
   # Returns:
   #    1    - Continue processing.
   
   sub rename_user_file_handler {
       my ($cmd, $tail, $client) = @_;
   
       my ($udom,$uname,$old,$new) = split(/:/, $tail);
       $old=&unescape($old);
       $new=&unescape($new);
       if ($new =~m|/\.\./| || $old =~m|/\.\./|) {
    # any files paths with /../ in them refuse to deal with
    &Failure($client, "refused\n", "$cmd:$tail");
       } else {
    my $udir = &propath($udom,$uname);
    if (-e $udir) {
       my $oldfile=$udir.'/userfiles/'.$old;
       my $newfile=$udir.'/userfiles/'.$new;
       if (-e $newfile) {
    &Failure($client, "exists\n", "$cmd:$tail");
       } elsif (! -e $oldfile) {
    &Failure($client, "not_found\n", "$cmd:$tail");
       } else {
    if (!rename($oldfile,$newfile)) {
       &Failure($client, "failed\n", "$cmd:$tail");
    } else {
       &Reply($client, "ok\n", "$cmd:$tail");
    }
       }
    } else {
       &Failure($client, "not_home\n", "$cmd:$tail");
    }
       }
       return 1;
   }
   &register_handler("renameuserfile", \&rename_user_file_handler, 0,1,0);
   
   
 #  #
 #  Authenticate access to a user file by checking the user's   #  Authenticate access to a user file by checking the user's 
Line 2065  sub put_user_profile_entry { Line 2208  sub put_user_profile_entry {
   
     my $userinput = "$cmd:$tail";      my $userinput = "$cmd:$tail";
           
     my ($udom,$uname,$namespace,$what) =split(/:/,$tail);      my ($udom,$uname,$namespace,$what) =split(/:/,$tail,4);
     if ($namespace ne 'roles') {      if ($namespace ne 'roles') {
  chomp($what);   chomp($what);
  my $hashref = &tie_user_hash($udom, $uname, $namespace,   my $hashref = &tie_user_hash($udom, $uname, $namespace,
Line 3017  sub dump_course_id_handler { Line 3160  sub dump_course_id_handler {
     return 1;      return 1;
 }  }
 &register_handler("courseiddump", \&dump_course_id_handler, 0, 1, 0);  &register_handler("courseiddump", \&dump_course_id_handler, 0, 1, 0);
   
   #
   #  Puts an id to a domains id database. 
   #
   #  Parameters:
   #   $cmd     - The command that triggered us.
   #   $tail    - Remainder of the request other than the command. This is a 
   #              colon separated list containing:
   #              $domain  - The domain for which we are writing the id.
   #              $pairs  - The id info to write... this is and & separated list
   #                        of keyword=value.
   #   $client  - Socket open on the client.
   #  Returns:
   #    1   - Continue processing.
   #  Side effects:
   #     reply is written to $client.
   #
   sub put_id_handler {
       my ($cmd,$tail,$client) = @_;
   
   
       my $userinput = "$cmd:$tail";
   
       my ($udom,$what)=split(/:/,$tail);
       chomp($what);
       my @pairs=split(/\&/,$what);
       my $hashref = &tie_domain_hash($udom, "ids", &GDBM_WRCREAT(),
      "P", $what);
       if ($hashref) {
    foreach my $pair (@pairs) {
       my ($key,$value)=split(/=/,$pair);
       $hashref->{$key}=$value;
    }
    if (untie(%$hashref)) {
       &Reply($client, "ok\n", $userinput);
    } else {
       &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ".
        "while attempting idput\n", $userinput);
    }
       } else {
    &Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ".
     "while attempting idput\n", $userinput);
       }
   
       return 1;
   }
   
   &register_handler("idput", \&put_id_handler, 0, 1, 0);
   #
   #  Retrieves a set of id values from the id database.
   #  Returns an & separated list of results, one for each requested id to the
   #  client.
   #
   # Parameters:
   #   $cmd       - Command keyword that caused us to be dispatched.
   #   $tail      - Tail of the command.  Consists of a colon separated:
   #               domain - the domain whose id table we dump
   #               ids      Consists of an & separated list of
   #                        id keywords whose values will be fetched.
   #                        nonexisting keywords will have an empty value.
   #   $client    - Socket open on the client.
   #
   # Returns:
   #    1 - indicating processing should continue.
   # Side effects:
   #   An & separated list of results is written to $client.
   #
   sub get_id_handler {
       my ($cmd, $tail, $client) = @_;
   
       
       my $userinput = "$client:$tail";
       
       my ($udom,$what)=split(/:/,$tail);
       chomp($what);
       my @queries=split(/\&/,$what);
       my $qresult='';
       my $hashref = &tie_domain_hash($udom, "ids", &GDBM_READER());
       if ($hashref) {
    for (my $i=0;$i<=$#queries;$i++) {
       $qresult.="$hashref->{$queries[$i]}&";
    }
    if (untie(%$hashref)) {
       $qresult=~s/\&$//;
       &Reply($client, "$qresult\n", $userinput);
    } else {
       &Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ".
         "while attempting idget\n",$userinput);
    }
       } else {
    &Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".
    "while attempting idget\n",$userinput);
       }
       
       return 1;
   }
   
   register_handler("idget", \&get_id_handler, 0, 1, 0);
   
   #
   #  Process the tmpput command I'm not sure what this does.. Seems to
   #  create a file in the lonDaemons/tmp directory of the form $id.tmp
   # where Id is the client's ip concatenated with a sequence number.
   # The file will contain some value that is passed in.  Is this e.g.
   # a login token?
   #
   # Parameters:
   #    $cmd     - The command that got us dispatched.
   #    $tail    - The remainder of the request following $cmd:
   #               In this case this will be the contents of the file.
   #    $client  - Socket connected to the client.
   # Returns:
   #    1 indicating processing can continue.
   # Side effects:
   #   A file is created in the local filesystem.
   #   A reply is sent to the client.
   sub tmp_put_handler {
       my ($cmd, $what, $client) = @_;
   
       my $userinput = "$cmd:$what"; # Reconstruct for logging.
   
   
       my $store;
       $tmpsnum++;
       my $id=$$.'_'.$clientip.'_'.$tmpsnum;
       $id=~s/\W/\_/g;
       $what=~s/\n//g;
       my $execdir=$perlvar{'lonDaemons'};
       if ($store=IO::File->new(">$execdir/tmp/$id.tmp")) {
    print $store $what;
    close $store;
    &Reply($client, "$id\n", $userinput);
       } else {
    &Failure( $client, "error: ".($!+0)."IO::File->new Failed ".
     "while attempting tmpput\n", $userinput);
       }
       return 1;
     
   }
   &register_handler("tmpput", \&tmp_put_handler, 0, 1, 0);
   #   Processes the tmpget command.  This command returns the contents
   #  of a temporary resource file(?) created via tmpput.
   #
   # Paramters:
   #    $cmd      - Command that got us dispatched.
   #    $id       - Tail of the command, contain the id of the resource
   #                we want to fetch.
   #    $client   - socket open on the client.
   # Return:
   #    1         - Inidcating processing can continue.
   # Side effects:
   #   A reply is sent to the client.
   
   #
   sub tmp_get_handler {
       my ($cmd, $id, $client) = @_;
   
       my $userinput = "$cmd:$id"; 
       
   
       $id=~s/\W/\_/g;
       my $store;
       my $execdir=$perlvar{'lonDaemons'};
       if ($store=IO::File->new("$execdir/tmp/$id.tmp")) {
    my $reply=<$store>;
    &Reply( $client, "$reply\n", $userinput);
    close $store;
       } else {
    &Failure( $client, "error: ".($!+0)."IO::File->new Failed ".
     "while attempting tmpget\n", $userinput);
       }
   
       return 1;
   }
   &register_handler("tmpget", \&tmp_get_handler, 0, 1, 0);
   #
   #  Process the tmpdel command.  This command deletes a temp resource
   #  created by the tmpput command.
   #
   # Parameters:
   #   $cmd      - Command that got us here.
   #   $id       - Id of the temporary resource created.
   #   $client   - socket open on the client process.
   #
   # Returns:
   #   1     - Indicating processing should continue.
   # Side Effects:
   #   A file is deleted
   #   A reply is sent to the client.
   sub tmp_del_handler {
       my ($cmd, $id, $client) = @_;
       
       my $userinput= "$cmd:$id";
       
       chomp($id);
       $id=~s/\W/\_/g;
       my $execdir=$perlvar{'lonDaemons'};
       if (unlink("$execdir/tmp/$id.tmp")) {
    &Reply($client, "ok\n", $userinput);
       } else {
    &Failure( $client, "error: ".($!+0)."Unlink tmp Failed ".
     "while attempting tmpdel\n", $userinput);
       }
       
       return 1;
   
   }
   &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", \&select_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 3133  sub process_request { Line 3605  sub process_request {
   
 #------------------- Commands not yet in spearate handlers. --------------  #------------------- Commands not yet in spearate handlers. --------------
   
   
 # ----------------------------------------------------------------------- idput  
     if ($userinput =~ /^idput/) {  
  if(isClient) {  
     my ($cmd,$udom,$what)=split(/:/,$userinput);  
     chomp($what);  
     $udom=~s/\W//g;  
     my $proname="$perlvar{'lonUsersDir'}/$udom/ids";  
     my $now=time;  
     my @pairs=split(/\&/,$what);  
     my %hash;  
     if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_WRCREAT(),0640)) {  
  {  
     my $hfh;  
     if ($hfh=IO::File->new(">>$proname.hist")) {  
  print $hfh "P:$now:$what\n";  
     }  
  }  
  foreach my $pair (@pairs) {  
     my ($key,$value)=split(/=/,$pair);  
     $hash{$key}=$value;  
  }  
  if (untie(%hash)) {  
     print $client "ok\n";  
  } else {  
     print $client "error: ".($!+0)  
  ." untie(GDBM) Failed ".  
  "while attempting idput\n";  
  }  
     } else {  
  print $client "error: ".($!+0)  
     ." tie(GDBM) Failed ".  
     "while attempting idput\n";  
     }  
  } else {  
     Reply($client, "refused\n", $userinput);  
       
  }  
 # ----------------------------------------------------------------------- idget  
     } elsif ($userinput =~ /^idget/) {  
  if(isClient) {  
     my ($cmd,$udom,$what)=split(/:/,$userinput);  
     chomp($what);  
     $udom=~s/\W//g;  
     my $proname="$perlvar{'lonUsersDir'}/$udom/ids";  
     my @queries=split(/\&/,$what);  
     my $qresult='';  
     my %hash;  
     if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_READER(),0640)) {  
  for (my $i=0;$i<=$#queries;$i++) {  
     $qresult.="$hash{$queries[$i]}&";  
  }  
  if (untie(%hash)) {  
     $qresult=~s/\&$//;  
     print $client "$qresult\n";  
  } else {  
     print $client "error: ".($!+0)  
  ." untie(GDBM) Failed ".  
  "while attempting idget\n";  
  }  
     } else {  
  print $client "error: ".($!+0)  
     ." tie(GDBM) Failed ".  
     "while attempting idget\n";  
     }  
  } else {  
     Reply($client, "refused\n", $userinput);  
       
  }  
 # ---------------------------------------------------------------------- tmpput  
     } elsif ($userinput =~ /^tmpput/) {  
  if(isClient) {  
     my ($cmd,$what)=split(/:/,$userinput);  
     my $store;  
     $tmpsnum++;  
     my $id=$$.'_'.$clientip.'_'.$tmpsnum;  
     $id=~s/\W/\_/g;  
     $what=~s/\n//g;  
     my $execdir=$perlvar{'lonDaemons'};  
     if ($store=IO::File->new(">$execdir/tmp/$id.tmp")) {  
  print $store $what;  
  close $store;  
  print $client "$id\n";  
     }  
     else {  
  print $client "error: ".($!+0)  
     ."IO::File->new Failed ".  
     "while attempting tmpput\n";  
     }  
  } else {  
     Reply($client, "refused\n", $userinput);  
       
  }  
   
 # ---------------------------------------------------------------------- tmpget  
     } elsif ($userinput =~ /^tmpget/) {  
  if(isClient) {  
     my ($cmd,$id)=split(/:/,$userinput);  
     chomp($id);  
     $id=~s/\W/\_/g;  
     my $store;  
     my $execdir=$perlvar{'lonDaemons'};  
     if ($store=IO::File->new("$execdir/tmp/$id.tmp")) {  
  my $reply=<$store>;  
     print $client "$reply\n";  
  close $store;  
     }  
     else {  
  print $client "error: ".($!+0)  
     ."IO::File->new Failed ".  
     "while attempting tmpget\n";  
     }  
  } else {  
     Reply($client, "refused\n", $userinput);  
       
  }  
 # ---------------------------------------------------------------------- tmpdel  
     } elsif ($userinput =~ /^tmpdel/) {  
  if(isClient) {  
     my ($cmd,$id)=split(/:/,$userinput);  
     chomp($id);  
     $id=~s/\W/\_/g;  
     my $execdir=$perlvar{'lonDaemons'};  
     if (unlink("$execdir/tmp/$id.tmp")) {  
  print $client "ok\n";  
     } else {  
  print $client "error: ".($!+0)  
     ."Unlink tmp Failed ".  
     "while attempting tmpdel\n";  
     }  
  } else {  
     Reply($client, "refused\n", $userinput);  
       
  }  
 # -------------------------------------------------------------------------- ls  
     } elsif ($userinput =~ /^ls/) {  
  if(isClient) {  
     my $obs;  
     my $rights;  
     my ($cmd,$ulsdir)=split(/:/,$userinput);  
     my $ulsout='';  
     my $ulsfn;  
     if (-e $ulsdir) {  
  if(-d $ulsdir) {  
     if (opendir(LSDIR,$ulsdir)) {  
  while ($ulsfn=readdir(LSDIR)) {  
     undef $obs, $rights;   
     my @ulsstats=stat($ulsdir.'/'.$ulsfn);  
     #We do some obsolete checking here  
     if(-e $ulsdir.'/'.$ulsfn.".meta") {   
  open(FILE, $ulsdir.'/'.$ulsfn.".meta");  
  my @obsolete=<FILE>;  
  foreach my $obsolete (@obsolete) {  
     if($obsolete =~ m|(<obsolete>)(on)|) { $obs = 1; }   
     if($obsolete =~ m|(<copyright>)(default)|) { $rights = 1; }  
  }  
     }  
     $ulsout.=$ulsfn.'&'.join('&',@ulsstats);  
     if($obs eq '1') { $ulsout.="&1"; }  
     else { $ulsout.="&0"; }  
     if($rights eq '1') { $ulsout.="&1:"; }  
     else { $ulsout.="&0:"; }  
  }  
  closedir(LSDIR);  
     }  
  } else {  
     my @ulsstats=stat($ulsdir);  
     $ulsout.=$ulsfn.'&'.join('&',@ulsstats).':';  
  }  
     } else {  
  $ulsout='no_such_dir';  
     }  
     if ($ulsout eq '') { $ulsout='empty'; }  
     print $client "$ulsout\n";  
  } else {  
     Reply($client, "refused\n", $userinput);  
       
  }  
 # ----------------------------------------------------------------- setannounce  
     } elsif ($userinput =~ /^setannounce/) {  
  if (isClient) {  
     my ($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.1.236  
changed lines
  Added in v.1.246

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