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Diff for /loncom/lond between versions 1.341 and 1.360

version 1.341, 2006/08/31 13:00:50 version 1.360, 2007/01/28 19:23:25
Line 40  use IO::File; Line 40  use IO::File;
 use POSIX;  use POSIX;
 use Crypt::IDEA;  use Crypt::IDEA;
 use LWP::UserAgent();  use LWP::UserAgent();
   use Digest::MD5 qw(md5_hex);
 use GDBM_File;  use GDBM_File;
 use Authen::Krb4;  use Authen::Krb4;
 use Authen::Krb5;  use Authen::Krb5;
 use lib '/home/httpd/lib/perl/';  
 use localauth;  use localauth;
 use localenroll;  use localenroll;
 use localstudentphoto;  use localstudentphoto;
Line 503  sub AdjustHostContents { Line 503  sub AdjustHostContents {
     my $adjusted;      my $adjusted;
     my $me        = $perlvar{'lonHostID'};      my $me        = $perlvar{'lonHostID'};
   
  foreach my $line (split(/\n/,$contents)) {      foreach my $line (split(/\n/,$contents)) {
  if(!(($line eq "") || ($line =~ /^ *\#/) || ($line =~ /^ *$/))) {   if(!(($line eq "") || ($line =~ /^ *\#/) || ($line =~ /^ *$/))) {
     chomp($line);      chomp($line);
     my ($id,$domain,$role,$name,$ip,$maxcon,$idleto,$mincon)=split(/:/,$line);      my ($id,$domain,$role,$name,$ip,$maxcon,$idleto,$mincon)=split(/:/,$line);
     if ($id eq $me) {      if ($id eq $me) {
           my $ip = gethostbyname($name);   my $ip = gethostbyname($name);
           my $ipnew = inet_ntoa($ip);   my $ipnew = inet_ntoa($ip);
          $ip = $ipnew;   $ip = $ipnew;
  #  Reconstruct the host line and append to adjusted:   #  Reconstruct the host line and append to adjusted:
   
    my $newline = "$id:$domain:$role:$name:$ip";   my $newline = "$id:$domain:$role:$name:$ip";
    if($maxcon ne "") { # Not all hosts have loncnew tuning params   if($maxcon ne "") { # Not all hosts have loncnew tuning params
      $newline .= ":$maxcon:$idleto:$mincon";      $newline .= ":$maxcon:$idleto:$mincon";
    }   }
    $adjusted .= $newline."\n";   $adjusted .= $newline."\n";
   
       } else { # Not me, pass unmodified.      } else { # Not me, pass unmodified.
    $adjusted .= $line."\n";   $adjusted .= $line."\n";
       }      }
  } else {                  # Blank or comment never re-written.   } else {                  # Blank or comment never re-written.
     $adjusted .= $line."\n"; # Pass blanks and comments as is.      $adjusted .= $line."\n"; # Pass blanks and comments as is.
  }   }
  }      }
  return $adjusted;      return $adjusted;
 }  }
 #  #
 #   InstallFile: Called to install an administrative file:  #   InstallFile: Called to install an administrative file:
Line 1574  sub change_password_handler { Line 1574  sub change_password_handler {
     #  uname - Username.      #  uname - Username.
     #  upass - Current password.      #  upass - Current password.
     #  npass - New password.      #  npass - New password.
       #  context - Context in which this was called 
       #            (preferences or reset_by_email).
         
     my ($udom,$uname,$upass,$npass)=split(/:/,$tail);      my ($udom,$uname,$upass,$npass,$context)=split(/:/,$tail);
   
     $upass=&unescape($upass);      $upass=&unescape($upass);
     $npass=&unescape($npass);      $npass=&unescape($npass);
     &Debug("Trying to change password for $uname");      &Debug("Trying to change password for $uname");
   
     # First require that the user can be authenticated with their      # First require that the user can be authenticated with their
     # old password:      # old password unless context was 'reset_by_email':
       
     my $validated = &validate_user($udom, $uname, $upass);      my $validated;
       if ($context eq 'reset_by_email') {
           $validated = 1;
       } else {
           $validated = &validate_user($udom, $uname, $upass);
       }
     if($validated) {      if($validated) {
  my $realpasswd  = &get_auth_type($udom, $uname); # Defined since authd.   my $realpasswd  = &get_auth_type($udom, $uname); # Defined since authd.
   
Line 1603  sub change_password_handler { Line 1610  sub change_password_handler {
  ."to change password");   ."to change password");
  &Failure( $client, "non_authorized\n",$userinput);   &Failure( $client, "non_authorized\n",$userinput);
     }      }
  } elsif ($howpwd eq 'unix') {   } elsif ($howpwd eq 'unix' && $context ne 'reset_by_email') {
     my $result = &change_unix_password($uname, $npass);      my $result = &change_unix_password($uname, $npass);
     &logthis("Result of password change for $uname: ".      &logthis("Result of password change for $uname: ".
      $result);       $result);
Line 2123  sub token_auth_user_file_handler { Line 2130  sub token_auth_user_file_handler {
           
     chomp($session);      chomp($session);
     my $reply="non_auth\n";      my $reply="non_auth\n";
     if (open(ENVIN,$perlvar{'lonIDsDir'}.'/'.      my $file = $perlvar{'lonIDsDir'}.'/'.$session.'.id';
      $session.'.id')) {      if (open(ENVIN,"$file")) {
  flock(ENVIN,LOCK_SH);   flock(ENVIN,LOCK_SH);
  while (my $line=<ENVIN>) {   tie(my %disk_env,'GDBM_File',"$file",&GDBM_READER(),0640);
     my ($envname)=split(/=/,$line,2);   if (exists($disk_env{"userfile.$fname"})) {
     $envname=&unescape($envname);      $reply="ok\n";
     if ($envname=~ m|^userfile\.\Q$fname\E|) { $reply="ok\n"; }   } else {
       foreach my $envname (keys(%disk_env)) {
    if ($envname=~ m|^userfile\.\Q$fname\E|) {
       $reply="ok\n";
       last;
    }
       }
  }   }
    untie(%disk_env);
  close(ENVIN);   close(ENVIN);
  &Reply($client, $reply, "$cmd:$tail");   &Reply($client, $reply, "$cmd:$tail");
     } else {      } else {
Line 3038  sub restore_handler { Line 3052  sub restore_handler {
     my ($cmd, $tail, $client) = @_;      my ($cmd, $tail, $client) = @_;
   
     my $userinput = "$cmd:$tail"; # Only used for logging purposes.      my $userinput = "$cmd:$tail"; # Only used for logging purposes.
   
     my ($udom,$uname,$namespace,$rid) = split(/:/,$tail);      my ($udom,$uname,$namespace,$rid) = split(/:/,$tail);
     $namespace=~s/\//\_/g;      $namespace=~s/\//\_/g;
     $namespace=~s/\W//g;      $namespace = &LONCAPA::clean_username($namespace);
   
     chomp($rid);      chomp($rid);
     my $qresult='';      my $qresult='';
     my $hashref = &tie_user_hash($udom, $uname, $namespace, &GDBM_READER());      my $hashref = &tie_user_hash($udom, $uname, $namespace, &GDBM_READER());
Line 3278  sub put_course_id_handler { Line 3292  sub put_course_id_handler {
  foreach my $pair (@pairs) {   foreach my $pair (@pairs) {
             my ($key,$courseinfo) = split(/=/,$pair,2);              my ($key,$courseinfo) = split(/=/,$pair,2);
             $courseinfo =~ s/=/:/g;              $courseinfo =~ s/=/:/g;
               my @current_items = split(/:/,$hashref->{$key},-1);
             my @current_items = split(/:/,$hashref->{$key});  
             shift(@current_items); # remove description              shift(@current_items); # remove description
             pop(@current_items);   # remove last access              pop(@current_items);   # remove last access
             my $numcurrent = scalar(@current_items);              my $numcurrent = scalar(@current_items);
               if ($numcurrent > 3) {
             my @new_items = split(/:/,$courseinfo);                  $numcurrent = 3;
               }
               my @new_items = split(/:/,$courseinfo,-1);
             my $numnew = scalar(@new_items);              my $numnew = scalar(@new_items);
             if ($numcurrent > 0) {              if ($numcurrent > 0) {
                 if ($numnew <= $numcurrent) { # flushcourselogs() from pre 2.2                   if ($numnew <= $numcurrent) { # flushcourselogs() from pre 2.2 
Line 3350  sub dump_course_id_handler { Line 3365  sub dump_course_id_handler {
     my $userinput = "$cmd:$tail";      my $userinput = "$cmd:$tail";
   
     my ($udom,$since,$description,$instcodefilter,$ownerfilter,$coursefilter,      my ($udom,$since,$description,$instcodefilter,$ownerfilter,$coursefilter,
         $typefilter) =split(/:/,$tail);          $typefilter,$regexp_ok) =split(/:/,$tail);
     if (defined($description)) {      if (defined($description)) {
  $description=&unescape($description);   $description=&unescape($description);
     } else {      } else {
Line 3387  sub dump_course_id_handler { Line 3402  sub dump_course_id_handler {
     } else {      } else {
         $typefilter='.';          $typefilter='.';
     }      }
       if (defined($regexp_ok)) {
           $regexp_ok=&unescape($regexp_ok);
       }
   
     unless (defined($since)) { $since=0; }      unless (defined($since)) { $since=0; }
     my $qresult='';      my $qresult='';
Line 3407  sub dump_course_id_handler { Line 3425  sub dump_course_id_handler {
             }              }
             unless ($instcodefilter eq '.' || !defined($instcodefilter)) {              unless ($instcodefilter eq '.' || !defined($instcodefilter)) {
                 my $unescapeInstcode = &unescape($inst_code);                  my $unescapeInstcode = &unescape($inst_code);
                 unless (eval('$unescapeInstcode=~/\Q$instcodefilter\E/i')) {                  if ($regexp_ok) {
                     $match = 0;                      unless (eval('$unescapeInstcode=~/$instcodefilter/')) {
                           $match = 0;
                       }
                   } else {
                       unless (eval('$unescapeInstcode=~/\Q$instcodefilter\E/i')) {
                           $match = 0;
                       }
                 }                  }
     }      }
             unless ($ownerfilter eq '.' || !defined($ownerfilter)) {              unless ($ownerfilter eq '.' || !defined($ownerfilter)) {
Line 3454  sub dump_course_id_handler { Line 3478  sub dump_course_id_handler {
             }              }
             unless ($typefilter eq '.' || !defined($typefilter)) {              unless ($typefilter eq '.' || !defined($typefilter)) {
                 my $unescapeType = &unescape($type);                  my $unescapeType = &unescape($type);
                 if (!defined($type)) {                  if ($type eq '') {
                     if ($typefilter ne 'Course') {                      if ($typefilter ne 'Course') {
                         $match = 0;                          $match = 0;
                     }                      }
Line 3486  sub dump_course_id_handler { Line 3510  sub dump_course_id_handler {
 &register_handler("courseiddump", \&dump_course_id_handler, 0, 1, 0);  &register_handler("courseiddump", \&dump_course_id_handler, 0, 1, 0);
   
 #  #
   # Puts an unencrypted entry in a namespace db file at the domain level 
   #
   # Parameters:
   #    $cmd      - The command that got us here.
   #    $tail     - Tail of the command (remaining parameters).
   #    $client   - File descriptor connected to client.
   # Returns
   #     0        - Requested to exit, caller should shut down.
   #     1        - Continue processing.
   #  Side effects:
   #     reply is written to $client.
   #
   sub put_domain_handler {
       my ($cmd,$tail,$client) = @_;
   
       my $userinput = "$cmd:$tail";
   
       my ($udom,$namespace,$what) =split(/:/,$tail,3);
       chomp($what);
       my @pairs=split(/\&/,$what);
       my $hashref = &tie_domain_hash($udom, "$namespace", &GDBM_WRCREAT(),
                                      "P", $what);
       if ($hashref) {
           foreach my $pair (@pairs) {
               my ($key,$value)=split(/=/,$pair);
               $hashref->{$key}=$value;
           }
           if (&untie_domain_hash($hashref)) {
               &Reply($client, "ok\n", $userinput);
           } else {
               &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ".
                        "while attempting putdom\n", $userinput);
           }
       } else {
           &Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ".
                     "while attempting putdom\n", $userinput);
       }
   
       return 1;
   }
   &register_handler("putdom", \&put_domain_handler, 0, 1, 0);
   
   # Unencrypted 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 (get).
   #   $tail            - Tail of the command.  This is a colon separated list
   #                      consisting of the domain and the 'namespace' 
   #                      which selects the gdbm file to do the lookup in,
   #                      & separated list of keys to lookup.  Note that
   #                      the values are returned as an & separated list too.
   #   $client          - File descriptor open on the client.
   # Returns:
   #   1       - Continue processing.
   #   0       - Exit.
   #  Side effects:
   #     reply is written to $client.
   #
   
   sub get_domain_handler {
       my ($cmd, $tail, $client) = @_;
   
       my $userinput = "$client:$tail";
   
       my ($udom,$namespace,$what)=split(/:/,$tail,3);
       chomp($what);
       my @queries=split(/\&/,$what);
       my $qresult='';
       my $hashref = &tie_domain_hash($udom, "$namespace", &GDBM_READER());
       if ($hashref) {
           for (my $i=0;$i<=$#queries;$i++) {
               $qresult.="$hashref->{$queries[$i]}&";
           }
           if (&untie_domain_hash($hashref)) {
               $qresult=~s/\&$//;
               &Reply($client, "$qresult\n", $userinput);
           } else {
               &Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ".
                         "while attempting getdom\n",$userinput);
           }
       } else {
           &Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".
                    "while attempting getdom\n",$userinput);
       }
   
       return 1;
   }
   &register_handler("getdom", \&get_domain_handler, 0, 1, 0);
   
   
   #
 #  Puts an id to a domains id database.   #  Puts an id to a domains id database. 
 #  #
 #  Parameters:  #  Parameters:
Line 3856  sub tmp_put_handler { Line 3973  sub tmp_put_handler {
   
     my $userinput = "$cmd:$what"; # Reconstruct for logging.      my $userinput = "$cmd:$what"; # Reconstruct for logging.
   
       my ($record,$context) = split(/:/,$what);
     my $store;      if ($context ne '') {
           chomp($context);
           $context = &unescape($context);
       }
       my ($id,$store);
     $tmpsnum++;      $tmpsnum++;
     my $id=$$.'_'.$clientip.'_'.$tmpsnum;      if ($context eq 'resetpw') {
           $id = &md5_hex(&md5_hex(time.{}.rand().$$));
       } else {
           $id = $$.'_'.$clientip.'_'.$tmpsnum;
       }
     $id=~s/\W/\_/g;      $id=~s/\W/\_/g;
     $what=~s/\n//g;      $record=~s/\n//g;
     my $execdir=$perlvar{'lonDaemons'};      my $execdir=$perlvar{'lonDaemons'};
     if ($store=IO::File->new(">$execdir/tmp/$id.tmp")) {      if ($store=IO::File->new(">$execdir/tmp/$id.tmp")) {
  print $store $what;   print $store $record;
  close $store;   close $store;
  &Reply($client, "$id\n", $userinput);   &Reply($client, "$id\n", $userinput);
     } else {      } else {
Line 4346  sub get_institutional_code_format_handle Line 4471  sub get_institutional_code_format_handle
 &register_handler("autoinstcodeformat",  &register_handler("autoinstcodeformat",
   \&get_institutional_code_format_handler,0,1,0);    \&get_institutional_code_format_handler,0,1,0);
   
   sub get_institutional_defaults_handler {
       my ($cmd, $tail, $client)   = @_;
       my $userinput               = "$cmd:$tail";
   
       my $dom = $tail;
       my %defaults_hash;
       my @code_order;
       my $outcome;
       eval {
           local($SIG{__DIE__})='DEFAULT';
           $outcome = &localenroll::instcode_defaults($dom,\%defaults_hash,
                                                      \@code_order);
       };
       if (!$@) {
           if ($outcome eq 'ok') {
               my $result='';
               while (my ($key,$value) = each(%defaults_hash)) {
                   $result.=&escape($key).'='.&escape($value).'&';
               }
               $result .= 'code_order='.&escape(join('&',@code_order));
               &Reply($client,$result."\n",$userinput);
           } else {
               &Reply($client,"error\n", $userinput);
           }
       } else {
           &Failure($client,"unknown_cmd\n",$userinput);
       }
   }
   &register_handler("autoinstcodedefaults",
                     \&get_institutional_defaults_handler,0,1,0);
   
   
 # Get domain specific conditions for import of student photographs to a course  # Get domain specific conditions for import of student photographs to a course
 #  #
 # Retrieves information from photo_permission subroutine in localenroll.  # Retrieves information from photo_permission subroutine in localenroll.
Line 5309  sub make_new_child { Line 5466  sub make_new_child {
 #        my $tmpsnum=0;            # Now global  #        my $tmpsnum=0;            # Now global
 #---------------------------------------------------- kerberos 5 initialization  #---------------------------------------------------- kerberos 5 initialization
         &Authen::Krb5::init_context();          &Authen::Krb5::init_context();
  unless (($dist eq 'fedora4') || ($dist eq 'suse9.3')) {   unless (($dist eq 'fedora5') || ($dist eq 'fedora4') ||  
    ($dist eq 'fedora6') || ($dist eq 'suse9.3')) {
     &Authen::Krb5::init_ets();      &Authen::Krb5::init_ets();
  }   }
   
Line 5722  sub validate_user { Line 5880  sub validate_user {
  my $krbservice = "krbtgt/".$contentpwd."\@".$contentpwd;   my $krbservice = "krbtgt/".$contentpwd."\@".$contentpwd;
  my $krbserver  = &Authen::Krb5::parse_name($krbservice);   my $krbserver  = &Authen::Krb5::parse_name($krbservice);
  my $credentials= &Authen::Krb5::cc_default();   my $credentials= &Authen::Krb5::cc_default();
  $credentials->initialize($krbclient);   $credentials->initialize(&Authen::Krb5::parse_name($user.'@'
                                                                    .$contentpwd));
  my $krbreturn  = &Authen::Krb5::get_in_tkt_with_password($krbclient,   my $krbreturn  = &Authen::Krb5::get_in_tkt_with_password($krbclient,
  $krbserver,   $krbserver,
  $password,   $password,
Line 5735  sub validate_user { Line 5894  sub validate_user {
     #  Authenticate via installation specific authentcation method:      #  Authenticate via installation specific authentcation method:
     $validated = &localauth::localauth($user,       $validated = &localauth::localauth($user, 
        $password,          $password, 
        $contentpwd);         $contentpwd,
          $domain);
       if ($validated < 0) {
    &logthis("localauth for $contentpwd $user:$domain returned a $validated");
    $validated = 0;
       }
  } else { # Unrecognized auth is also bad.   } else { # Unrecognized auth is also bad.
     $validated = 0;      $validated = 0;
  }   }
Line 5761  sub addline { Line 5925  sub addline {
     my ($fname,$hostid,$ip,$newline)=@_;      my ($fname,$hostid,$ip,$newline)=@_;
     my $contents;      my $contents;
     my $found=0;      my $found=0;
     my $expr='^'.$hostid.':'.$ip.':';      my $expr='^'.quotemeta($hostid).':'.quotemeta($ip).':';
     $expr =~ s/\./\\\./g;  
     my $sh;      my $sh;
     if ($sh=IO::File->new("$fname.subscription")) {      if ($sh=IO::File->new("$fname.subscription")) {
  while (my $subline=<$sh>) {   while (my $subline=<$sh>) {
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  Added in v.1.360

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500 Internal Server Error

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at root@localhost to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.