Diff for /loncom/lond between versions 1.450 and 1.492

version 1.450, 2010/07/26 21:52:10 version 1.492, 2012/04/26 19:51:40
Line 15 Line 15
 #  #
 # LON-CAPA is distributed in the hope that it will be useful,  # LON-CAPA is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of  # but WITHOUT ANY WARRANTY; without even the implied warranty of
   
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.  # GNU General Public License for more details.
 #  #
Line 33  use strict; Line 34  use strict;
 use lib '/home/httpd/lib/perl/';  use lib '/home/httpd/lib/perl/';
 use LONCAPA;  use LONCAPA;
 use LONCAPA::Configuration;  use LONCAPA::Configuration;
   use LONCAPA::Lond;
   
 use IO::Socket;  use IO::Socket;
 use IO::File;  use IO::File;
Line 52  use LONCAPA::lonlocal; Line 54  use LONCAPA::lonlocal;
 use LONCAPA::lonssl;  use LONCAPA::lonssl;
 use Fcntl qw(:flock);  use Fcntl qw(:flock);
 use Apache::lonnet;  use Apache::lonnet;
   use Mail::Send;
   
 my $DEBUG = 0;       # Non zero to enable debug log entries.  my $DEBUG = 0;       # Non zero to enable debug log entries.
   
Line 90  my %managers;   # Ip -> manager names Line 93  my %managers;   # Ip -> manager names
   
 my %perlvar; # Will have the apache conf defined perl vars.  my %perlvar; # Will have the apache conf defined perl vars.
   
   my $dist;
   
 #  #
 #   The hash below is used for command dispatching, and is therefore keyed on the request keyword.  #   The hash below is used for command dispatching, and is therefore keyed on the request keyword.
 #    Each element of the hash contains a reference to an array that contains:  #    Each element of the hash contains a reference to an array that contains:
Line 419  sub ReadManagerTable { Line 424  sub ReadManagerTable {
   
    my $tablename = $perlvar{'lonTabDir'}."/managers.tab";     my $tablename = $perlvar{'lonTabDir'}."/managers.tab";
    if (!open (MANAGERS, $tablename)) {     if (!open (MANAGERS, $tablename)) {
       logthis('<font color="red">No manager table.  Nobody can manage!!</font>');         my $hostname = &Apache::lonnet::hostname($perlvar{'lonHostID'});
       return;         if (&Apache::lonnet::is_LC_dns($hostname)) {
              &logthis('<font color="red">No manager table.  Nobody can manage!!</font>');
          }
          return;
    }     }
    while(my $host = <MANAGERS>) {     while(my $host = <MANAGERS>) {
       chomp($host);        chomp($host);
Line 445  sub ReadManagerTable { Line 453  sub ReadManagerTable {
          }           }
       } else {        } else {
          logthis('<font color="green"> existing host'." $host</font>\n");           logthis('<font color="green"> existing host'." $host</font>\n");
          $managers{&Apache::lonnet::get_host_ip($host)} = $host;  # Use info from cluster tab if clumemeber           $managers{&Apache::lonnet::get_host_ip($host)} = $host;  # Use info from cluster tab if cluster memeber
       }        }
    }     }
 }  }
Line 507  sub AdjustHostContents { Line 515  sub AdjustHostContents {
     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 =~ /^ *\#/) || ($line =~ /^ *$/) ||
                ($line =~ /^\s*\^/))) {
     chomp($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) {
Line 595  sub InstallFile { Line 604  sub InstallFile {
 #  #
 #   ConfigFileFromSelector: converts a configuration file selector  #   ConfigFileFromSelector: converts a configuration file selector
 #                 into a configuration file pathname.  #                 into a configuration file pathname.
 #                 It's probably no longer necessary to preserve  #                 Supports the following file selectors: 
 #                 special handling of hosts or domain as those  #                 hosts, domain, dns_hosts, dns_domain  
 #                 files have been superceded by dns_hosts, dns_domain.  
 #                 The default action is just to prepend the directory  
 #                 and append .tab  
 #  #
 #  #
 #  Parameters:  #  Parameters:
Line 612  sub ConfigFileFromSelector { Line 618  sub ConfigFileFromSelector {
     my $tablefile;      my $tablefile;
   
     my $tabledir = $perlvar{'lonTabDir'}.'/';      my $tabledir = $perlvar{'lonTabDir'}.'/';
     if ($selector eq "hosts") {      if (($selector eq "hosts") || ($selector eq "domain") || 
  $tablefile = $tabledir."hosts.tab";          ($selector eq "dns_hosts") || ($selector eq "dns_domain")) {
     } elsif ($selector eq "domain") {  
  $tablefile = $tabledir."domain.tab";  
     } else {  
  $tablefile =  $tabledir.$selector.'.tab';   $tablefile =  $tabledir.$selector.'.tab';
     }      }
     return $tablefile;      return $tablefile;
   
 }  }
 #  #
 #   PushFile:  Called to do an administrative push of a file.  #   PushFile:  Called to do an administrative push of a file.
Line 646  sub PushFile { Line 648  sub PushFile {
     #  supported:      #  supported:
     #   hosts.tab  ($filename eq host).      #   hosts.tab  ($filename eq host).
     #   domain.tab ($filename eq domain).      #   domain.tab ($filename eq domain).
       #   dns_hosts.tab ($filename eq dns_host).
       #   dns_domain.tab ($filename eq dns_domain). 
     # Construct the destination filename or reject the request.      # Construct the destination filename or reject the request.
     #      #
     # lonManage is supposed to ensure this, however this session could be      # lonManage is supposed to ensure this, however this session could be
Line 677  sub PushFile { Line 681  sub PushFile {
  return "error:$!";   return "error:$!";
     } else {      } else {
  &logthis('<font color="green"> Installed new '.$tablefile   &logthis('<font color="green"> Installed new '.$tablefile
  ."</font>");   ." - transaction by: $clientname ($clientip)</font>");
           my $adminmail = $perlvar{'lonAdmEMail'};
           my $admindom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
           if ($admindom ne '') {
               my %domconfig =
                   &Apache::lonnet::get_dom('configuration',['contacts'],$admindom);
               if (ref($domconfig{'contacts'}) eq 'HASH') {
                   if ($domconfig{'contacts'}{'adminemail'} ne '') {
                       $adminmail = $domconfig{'contacts'}{'adminemail'};
                   }
               }
           }
           if ($adminmail =~ /^[^\@]+\@[^\@]+$/) {
               my $msg = new Mail::Send;
               $msg->to($adminmail);
               $msg->subject('LON-CAPA DNS update on '.$perlvar{'lonHostID'});
               $msg->add('Content-type','text/plain; charset=UTF-8');
               if (my $fh = $msg->open()) {
                   print $fh 'Update to '.$tablefile.' from Cluster Manager '.
                             "$clientname ($clientip)\n";
                   $fh->close;
               }
           }
     }      }
   
   
     #  Indicate success:      #  Indicate success:
     
     return "ok";      return "ok";
Line 1121  sub establish_key_handler { Line 1145  sub establish_key_handler {
 sub load_handler {  sub load_handler {
     my ($cmd, $tail, $replyfd) = @_;      my ($cmd, $tail, $replyfd) = @_;
   
   
   
    # Get the load average from /proc/loadavg and calculate it as a percentage of     # Get the load average from /proc/loadavg and calculate it as a percentage of
    # the allowed load limit as set by the perl global variable lonLoadLim     # the allowed load limit as set by the perl global variable lonLoadLim
   
Line 1618  sub ls3_handler { Line 1644  sub ls3_handler {
 }  }
 &register_handler("ls3", \&ls3_handler, 0, 1, 0);  &register_handler("ls3", \&ls3_handler, 0, 1, 0);
   
   sub read_lonnet_global {
       my ($cmd,$tail,$client) = @_;
       my $userinput = "$cmd:$tail";
       my $requested = &Apache::lonnet::thaw_unescape($tail);
       my $result;
       my %packagevars = (
                           spareid => \%Apache::lonnet::spareid,
                           perlvar => \%Apache::lonnet::perlvar,
                         );
       my %limit_to = (
                       perlvar => {
                                    lonOtherAuthen => 1,
                                    lonBalancer    => 1,
                                    lonVersion     => 1,
                                    lonSysEMail    => 1,
                                    lonHostID      => 1,
                                    lonRole        => 1,
                                    lonDefDomain   => 1,
                                    lonLoadLim     => 1,
                                    lonUserLoadLim => 1,
                                  }
                     );
       if (ref($requested) eq 'HASH') {
           foreach my $what (keys(%{$requested})) {
               my $response;
               my $items = {};
               if (exists($packagevars{$what})) {
                   if (ref($limit_to{$what}) eq 'HASH') {
                       foreach my $varname (keys(%{$packagevars{$what}})) {
                           if ($limit_to{$what}{$varname}) {
                               $items->{$varname} = $packagevars{$what}{$varname};
                           }
                       }
                   } else {
                       $items = $packagevars{$what};
                   }
                   if ($what eq 'perlvar') {
                       if (!exists($packagevars{$what}{'lonBalancer'})) {
                           if ($dist =~ /^(centos|rhes|fedora|scientific)/) {
                               my $othervarref=LONCAPA::Configuration::read_conf('httpd.conf');
                               if (ref($othervarref) eq 'HASH') {
                                   $items->{'lonBalancer'} = $othervarref->{'lonBalancer'};
                               }
                           }
                       }
                   }
                   $response = &Apache::lonnet::freeze_escape($items);
               }
               $result .= &escape($what).'='.$response.'&';
           }
       }
       $result =~ s/\&$//;
       &Reply($client,\$result,$userinput);
       return 1;
   }
   &register_handler("readlonnetglobal", \&read_lonnet_global, 0, 1, 0);
   
   sub server_devalidatecache_handler {
       my ($cmd,$tail,$client) = @_;
       my $userinput = "$cmd:$tail";
       my ($name,$id) = map { &unescape($_); } split(/:/,$tail);
       &Apache::lonnet::devalidate_cache_new($name,$id);
       my $result = 'ok';
       &Reply($client,\$result,$userinput);
       return 1;
   }
   &register_handler("devalidatecache", \&server_devalidatecache_handler, 0, 1, 0);
   
 sub server_timezone_handler {  sub server_timezone_handler {
     my ($cmd,$tail,$client) = @_;      my ($cmd,$tail,$client) = @_;
     my $userinput = "$cmd:$tail";      my $userinput = "$cmd:$tail";
Line 1666  sub server_homeID_handler { Line 1760  sub server_homeID_handler {
 }  }
 &register_handler("serverhomeID", \&server_homeID_handler, 0, 1, 0);  &register_handler("serverhomeID", \&server_homeID_handler, 0, 1, 0);
   
   sub server_distarch_handler {
       my ($cmd,$tail,$client) = @_;
       my $userinput = "$cmd:$tail";
       my $reply = &distro_and_arch();
       &Reply($client,\$reply,$userinput);
       return 1;
   }
   &register_handler("serverdistarch", \&server_distarch_handler, 0, 1, 0);
   
 #   Process a reinit request.  Reinit requests that either  #   Process a reinit request.  Reinit requests that either
 #   lonc or lond be reinitialized so that an updated   #   lonc or lond be reinitialized so that an updated 
 #   host.tab or domain.tab can be processed.  #   host.tab or domain.tab can be processed.
Line 1789  sub authenticate_handler { Line 1892  sub authenticate_handler {
         unless ($clientcancheckhost) {          unless ($clientcancheckhost) {
             my $uprimary_id = &Apache::lonnet::domain($udom,'primary');              my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
             my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);              my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
             my @intdoms = &Apache::lonnet::get_internet_names($clientname);                my @intdoms;
               my $internet_names = &Apache::lonnet::get_internet_names($clientname);
               if (ref($internet_names) eq 'ARRAY') {
                   @intdoms = @{$internet_names};
               }
             unless ($uint_dom ne '' && grep(/^\Q$uint_dom\E$/,@intdoms)) {              unless ($uint_dom ne '' && grep(/^\Q$uint_dom\E$/,@intdoms)) {
                 my ($remote,$hosted);                  my ($remote,$hosted);
                 my $remotesession = &get_usersession_config($udom,'remotesession');                  my $remotesession = &get_usersession_config($udom,'remotesession');
Line 1800  sub authenticate_handler { Line 1907  sub authenticate_handler {
                 if (ref($hostedsession) eq 'HASH') {                  if (ref($hostedsession) eq 'HASH') {
                     $hosted = $hostedsession->{'hosted'};                      $hosted = $hostedsession->{'hosted'};
                 }                  }
                 my $loncaparev = $clientversion;  
                 if ($loncaparev eq '') {  
                     $loncaparev = $Apache::lonnet::loncaparevs{$clientname};  
                 }  
                 $canhost = &Apache::lonnet::can_host_session($udom,$clientname,                  $canhost = &Apache::lonnet::can_host_session($udom,$clientname,
                                                              $loncaparev,                                                               $clientversion,
                                                              $remote,$hosted);                                                               $remote,$hosted);
             }              }
         }          }
Line 1967  sub add_user_handler { Line 2070  sub add_user_handler {
     ."makeuser";      ."makeuser";
     }      }
     unless ($fperror) {      unless ($fperror) {
  my $result=&make_passwd_file($uname, $umode,$npass, $passfilename);   my $result=&make_passwd_file($uname,$udom,$umode,$npass, $passfilename);
  &Reply($client,\$result, $userinput);     #BUGBUG - could be fail   &Reply($client,\$result, $userinput);     #BUGBUG - could be fail
     } else {      } else {
  &Failure($client, \$fperror, $userinput);   &Failure($client, \$fperror, $userinput);
Line 2042  sub change_authentication_handler { Line 2145  sub change_authentication_handler {
     &Failure($client, \$result);      &Failure($client, \$result);
  }   }
     } else {      } else {
  my $result=&make_passwd_file($uname, $umode,$npass,$passfilename);   my $result=&make_passwd_file($uname,$udom,$umode,$npass,$passfilename);
  #   #
  #  If the current auth mode is internal, and the old auth mode was   #  If the current auth mode is internal, and the old auth mode was
  #  unix, or krb*,  and the user is an author for this domain,   #  unix, or krb*,  and the user is an author for this domain,
Line 2151  sub update_resource_handler { Line 2254  sub update_resource_handler {
  my $transname="$fname.in.transfer";   my $transname="$fname.in.transfer";
  my $remoteurl=&Apache::lonnet::reply("sub:$fname","$clientname");   my $remoteurl=&Apache::lonnet::reply("sub:$fname","$clientname");
  my $response;   my $response;
  alarm(120);  # FIXME: cannot replicate files that take more than two minutes to transfer?
   # alarm(120);
   # FIXME: this should use the LWP mechanism, not internal alarms.
                   alarm(1200);
  {   {
     my $ua=new LWP::UserAgent;      my $ua=new LWP::UserAgent;
     my $request=new HTTP::Request('GET',"$remoteurl");      my $request=new HTTP::Request('GET',"$remoteurl");
Line 2159  sub update_resource_handler { Line 2265  sub update_resource_handler {
  }   }
  alarm(0);   alarm(0);
  if ($response->is_error()) {   if ($response->is_error()) {
   # FIXME: we should probably clean up here instead of just whine
     unlink($transname);      unlink($transname);
     my $message=$response->status_line;      my $message=$response->status_line;
     &logthis("LWP GET: $message for $fname ($remoteurl)");      &logthis("LWP GET: $message for $fname ($remoteurl)");
  } else {   } else {
     if ($remoteurl!~/\.meta$/) {      if ($remoteurl!~/\.meta$/) {
   # FIXME: isn't there an internal LWP mechanism for this?
  alarm(120);   alarm(120);
  {   {
     my $ua=new LWP::UserAgent;      my $ua=new LWP::UserAgent;
Line 2237  sub fetch_user_file_handler { Line 2345  sub fetch_user_file_handler {
   
  my $destname=$udir.'/'.$ufile;   my $destname=$udir.'/'.$ufile;
  my $transname=$udir.'/'.$ufile.'.in.transit';   my $transname=$udir.'/'.$ufile.'.in.transit';
  my $remoteurl='http://'.$clientip.'/userfiles/'.$fname;          my $clientprotocol=$Apache::lonnet::protocol{$clientname};
           $clientprotocol = 'http' if ($clientprotocol ne 'https');
    my $clienthost = &Apache::lonnet::hostname($clientname);
    my $remoteurl=$clientprotocol.'://'.$clienthost.'/userfiles/'.$fname;
  my $response;   my $response;
  Debug("Remote URL : $remoteurl Transfername $transname Destname: $destname");   Debug("Remote URL : $remoteurl Transfername $transname Destname: $destname");
  alarm(120);   alarm(120);
Line 2413  sub user_has_session_handler { Line 2524  sub user_has_session_handler {
   
     my ($udom, $uname) = map { &unescape($_) } (split(/:/, $tail));      my ($udom, $uname) = map { &unescape($_) } (split(/:/, $tail));
           
     &logthis("Looking for $udom $uname");  
     opendir(DIR,$perlvar{'lonIDsDir'});      opendir(DIR,$perlvar{'lonIDsDir'});
     my $filename;      my $filename;
     while ($filename=readdir(DIR)) {      while ($filename=readdir(DIR)) {
Line 3132  sub dump_profile_database { Line 3242  sub dump_profile_database {
 #                                             that is matched against  #                                             that is matched against
 #                                             database keywords to do  #                                             database keywords to do
 #                                             selective dumps.  #                                             selective dumps.
   #                               range       - optional range of entries
   #                                             e.g., 10-20 would return the
   #                                             10th to 19th items, etc.  
 #   $client                   - Channel open on the client.  #   $client                   - Channel open on the client.
 # Returns:  # Returns:
 #    1    - Continue processing.  #    1    - Continue processing.
Line 3141  sub dump_profile_database { Line 3254  sub dump_profile_database {
 sub dump_with_regexp {  sub dump_with_regexp {
     my ($cmd, $tail, $client) = @_;      my ($cmd, $tail, $client) = @_;
   
       my $res = LONCAPA::Lond::dump_with_regexp($tail, $clientname, $clientversion);
     my $userinput = "$cmd:$tail";      
       if ($res =~ /^error:/) {
     my ($udom,$uname,$namespace,$regexp,$range,$extra)=split(/:/,$tail);          Failure($client, \$res, "$cmd:$tail");
     if (defined($regexp)) {  
  $regexp=&unescape($regexp);  
     } else {  
  $regexp='.';  
     }  
     my ($start,$end);  
     if (defined($range)) {  
  if ($range =~/^(\d+)\-(\d+)$/) {  
     ($start,$end) = ($1,$2);  
  } elsif ($range =~/^(\d+)$/) {  
     ($start,$end) = (0,$1);  
  } else {  
     undef($range);  
  }  
     }  
     my $hashref = &tie_user_hash($udom, $uname, $namespace,  
  &GDBM_READER());  
     my $clientcheckrole;  
     if ($hashref) {  
         my $qresult='';  
  my $count=0;  
         if ($extra ne '') {  
             $extra = &Apache::lonnet::thaw_unescape($extra);  
             $clientcheckrole = $extra->{'clientcheckrole'};  
         }  
         my @ids = &Apache::lonnet::current_machine_ids();  
  while (my ($key,$value) = each(%$hashref)) {  
             if ($namespace eq 'roles') {  
                 if ($key =~ m{^/($LONCAPA::match_domain)/($LONCAPA::match_courseid)_(cc|co|in|ta|ep|ad|st|cr)}) {  
                     my $cdom = $1;  
                     my $cnum = $2;  
                     unless ($clientcheckrole) {  
                         my $home = &Apache::lonnet::homeserver($cnum,$cdom);  
                         my $loncaparev = $clientversion;  
                         if ($loncaparev eq '') {  
                             $loncaparev = $Apache::lonnet::loncaparevs{$clientname};  
                         }  
                         my ($major,$minor);  
                         if ($loncaparev =~ /^\'?(\d+)\.(\d+)\.[\d.\-]+\'?/) {  
                             $major = $1;  
                             $minor = $2;  
                         }  
                         if ($key =~ m{^/($LONCAPA::match_domain)/($LONCAPA::match_community)_(co|in|ta|ep|ad|st|cr)}) {  
                             if ($major eq '' && $minor eq '') {  
                                 next unless (($home ne 'no_host') && grep(/^\Q$home\E$/,@ids));  
                             }  
                         }  
                         unless ($home eq 'no_host') {  
                             my $courseinfo = &get_courseinfo_hash($cnum,$cdom,$home);  
                             if (ref($courseinfo) eq 'HASH') {  
                                 if (exists($courseinfo->{'releaserequired'})) {  
                                     my ($reqdmajor,$reqdminor) = split(/\./,$courseinfo->{'releaserequired'});  
                                     if ($reqdmajor ne '' && $reqdminor ne '') {  
                                         next if (($major eq '' && $minor eq '') ||  
                                                  ($major < $reqdmajor) ||   
                                                  (($major == $reqdmajor) && ($minor < $reqdminor)));  
                                     }  
                                 }  
                             }  
                         }  
                     }  
                 }  
             }  
     if ($regexp eq '.') {  
  $count++;  
  if (defined($range) && $count >= $end)   { last; }  
  if (defined($range) && $count <  $start) { next; }  
  $qresult.=$key.'='.$value.'&';  
     } else {  
  my $unescapeKey = &unescape($key);  
  if (eval('$unescapeKey=~/$regexp/')) {  
     $count++;  
     if (defined($range) && $count >= $end)   { last; }  
     if (defined($range) && $count <  $start) { next; }  
     $qresult.="$key=$value&";  
  }  
     }  
  }  
  if (&untie_user_hash($hashref)) {  
     chop($qresult);  
     &Reply($client, \$qresult, $userinput);  
  } else {  
     &Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ".  
      "while attempting dump\n", $userinput);  
  }  
     } else {      } else {
  &Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".          Reply($client, \$res, "$cmd:$tail");
  "while attempting dump\n", $userinput);  
     }      }
   
     return 1;      return 1;
Line 3890  sub dump_course_id_handler { Line 3917  sub dump_course_id_handler {
         $creationcontext = '.';          $creationcontext = '.';
     }      }
     my $unpack = 1;      my $unpack = 1;
     if ($description eq '.' && $instcodefilter eq '.' && $coursefilter eq '.' &&       if ($description eq '.' && $instcodefilter eq '.' && $ownerfilter eq '.' && 
         $typefilter eq '.') {          $typefilter eq '.') {
         $unpack = 0;          $unpack = 0;
     }      }
Line 4274  sub put_domain_handler { Line 4301  sub put_domain_handler {
 sub get_domain_handler {  sub get_domain_handler {
     my ($cmd, $tail, $client) = @_;      my ($cmd, $tail, $client) = @_;
   
   
     my $userinput = "$client:$tail";      my $userinput = "$client:$tail";
   
     my ($udom,$namespace,$what)=split(/:/,$tail,3);      my ($udom,$namespace,$what)=split(/:/,$tail,3);
Line 4418  sub get_id_handler { Line 4446  sub get_id_handler {
 sub put_dcmail_handler {  sub put_dcmail_handler {
     my ($cmd,$tail,$client) = @_;      my ($cmd,$tail,$client) = @_;
     my $userinput = "$cmd:$tail";      my $userinput = "$cmd:$tail";
                                                                                   
   
     my ($udom,$what)=split(/:/,$tail);      my ($udom,$what)=split(/:/,$tail);
     chomp($what);      chomp($what);
     my $hashref = &tie_domain_hash($udom, "nohist_dcmail", &GDBM_WRCREAT());      my $hashref = &tie_domain_hash($udom, "nohist_dcmail", &GDBM_WRCREAT());
Line 4682  sub tmp_put_handler { Line 4711  sub tmp_put_handler {
     }      }
     my ($id,$store);      my ($id,$store);
     $tmpsnum++;      $tmpsnum++;
     if ($context eq 'resetpw') {      if (($context eq 'resetpw') || ($context eq 'createaccount')) {
         $id = &md5_hex(&md5_hex(time.{}.rand().$$));          $id = &md5_hex(&md5_hex(time.{}.rand().$$));
     } else {      } else {
         $id = $$.'_'.$clientip.'_'.$tmpsnum;          $id = $$.'_'.$clientip.'_'.$tmpsnum;
Line 5000  sub get_sections_handler { Line 5029  sub get_sections_handler {
 sub validate_course_owner_handler {  sub validate_course_owner_handler {
     my ($cmd, $tail, $client)  = @_;      my ($cmd, $tail, $client)  = @_;
     my $userinput = "$cmd:$tail";      my $userinput = "$cmd:$tail";
     my ($inst_course_id, $owner, $cdom) = split(/:/, $tail);      my ($inst_course_id, $owner, $cdom, $coowners) = split(/:/, $tail);
       
     $owner = &unescape($owner);      $owner = &unescape($owner);
     my $outcome = &localenroll::new_course($inst_course_id,$owner,$cdom);      $coowners = &unescape($coowners);
       my $outcome = &localenroll::new_course($inst_course_id,$owner,$cdom,$coowners);
     &Reply($client, \$outcome, $userinput);      &Reply($client, \$outcome, $userinput);
   
   
Line 5991  if (-e $pidfile) { Line 6021  if (-e $pidfile) {
 $server = IO::Socket::INET->new(LocalPort => $perlvar{'londPort'},  $server = IO::Socket::INET->new(LocalPort => $perlvar{'londPort'},
                                 Type      => SOCK_STREAM,                                  Type      => SOCK_STREAM,
                                 Proto     => 'tcp',                                  Proto     => 'tcp',
                                 Reuse     => 1,                                  ReuseAddr     => 1,
                                 Listen    => 10 )                                  Listen    => 10 )
   or die "making socket: $@\n";    or die "making socket: $@\n";
   
Line 6054  sub HUPSMAN {                      # sig Line 6084  sub HUPSMAN {                      # sig
 #  a setuid perl script that can be root for us to do this job.  #  a setuid perl script that can be root for us to do this job.
 #  #
 sub ReloadApache {  sub ReloadApache {
     my $execdir = $perlvar{'lonDaemons'};  # --------------------------- Handle case of another apachereload process (locking)
     my $script  = $execdir."/apachereload";      if (&LONCAPA::try_to_lock('/tmp/lock_apachereload')) {
     system($script);          my $execdir = $perlvar{'lonDaemons'};
           my $script  = $execdir."/apachereload";
           system($script);
           unlink('/tmp/lock_apachereload'); #  Remove the lock file.
       }
 }  }
   
 #  #
Line 6167  sub Debug { Line 6201  sub Debug {
 #     reply   - Text to send to client.  #     reply   - Text to send to client.
 #     request - Original request from client.  #     request - Original request from client.
 #  #
   #NOTE $reply must be terminated by exactly *one* \n. If $reply is a reference
   #this is done automatically ($$reply must not contain any \n in this case). 
   #If $reply is a string the caller has to ensure this.
 sub Reply {  sub Reply {
     my ($fd, $reply, $request) = @_;      my ($fd, $reply, $request) = @_;
     if (ref($reply)) {      if (ref($reply)) {
Line 6229  sub logstatus { Line 6266  sub logstatus {
 sub initnewstatus {  sub initnewstatus {
     my $docdir=$perlvar{'lonDocRoot'};      my $docdir=$perlvar{'lonDocRoot'};
     my $fh=IO::File->new(">$docdir/lon-status/londstatus.txt");      my $fh=IO::File->new(">$docdir/lon-status/londstatus.txt");
     my $now=time;      my $now=time();
     my $local=localtime($now);      my $local=localtime($now);
     print $fh "LOND status $local - parent $$\n\n";      print $fh "LOND status $local - parent $$\n\n";
     opendir(DIR,"$docdir/lon-status/londchld");      opendir(DIR,"$docdir/lon-status/londchld");
Line 6320  $SIG{USR2} = \&UpdateHosts; Line 6357  $SIG{USR2} = \&UpdateHosts;
 &Apache::lonnet::load_hosts_tab();  &Apache::lonnet::load_hosts_tab();
 my %iphost = &Apache::lonnet::get_iphost(1);  my %iphost = &Apache::lonnet::get_iphost(1);
   
 my $dist=`$perlvar{'lonDaemons'}/distprobe`;  $dist=`$perlvar{'lonDaemons'}/distprobe`;
   
   my $arch = `uname -i`;
   chomp($arch);
   if ($arch eq 'unknown') {
       $arch = `uname -m`;
       chomp($arch);
   }
   
 # --------------------------------------------------------------  # --------------------------------------------------------------
 #   Accept connections.  When a connection comes in, it is validated  #   Accept connections.  When a connection comes in, it is validated
Line 6379  sub make_new_child { Line 6423  sub make_new_child {
             or die "Can't unblock SIGINT for fork: $!\n";              or die "Can't unblock SIGINT for fork: $!\n";
         $children{$pid} = $clientip;          $children{$pid} = $clientip;
         &status('Started child '.$pid);          &status('Started child '.$pid);
    close($client);
         return;          return;
     } else {      } else {
         # Child can *not* return from this subroutine.          # Child can *not* return from this subroutine.
Line 6387  sub make_new_child { Line 6432  sub make_new_child {
                                 #don't get intercepted                                  #don't get intercepted
         $SIG{USR1}= \&logstatus;          $SIG{USR1}= \&logstatus;
         $SIG{ALRM}= \&timeout;          $SIG{ALRM}= \&timeout;
    #
    # Block sigpipe as it gets thrownon socket disconnect and we want to 
    # deal with that as a read faiure instead.
    #
    my $blockset = POSIX::SigSet->new(SIGPIPE);
    sigprocmask(SIG_BLOCK, $blockset);
   
         $lastlog='Forked ';          $lastlog='Forked ';
         $status='Forked';          $status='Forked';
   
Line 6444  sub make_new_child { Line 6496  sub make_new_child {
  #  If the remote is attempting a local init... give that a try:   #  If the remote is attempting a local init... give that a try:
  #   #
  (my $i, my $inittype, $clientversion) = split(/:/, $remotereq);   (my $i, my $inittype, $clientversion) = split(/:/, $remotereq);
           # For LON-CAPA 2.9, the  client session will have sent its LON-CAPA
           # version when initiating the connection. For LON-CAPA 2.8 and older,
           # the version is retrieved from the global %loncaparevs in lonnet.pm.            
           $clientversion ||= $Apache::lonnet::loncaparevs{$clientname};
   
  # If the connection type is ssl, but I didn't get my   # If the connection type is ssl, but I didn't get my
  # certificate files yet, then I'll drop  back to    # certificate files yet, then I'll drop  back to 
Line 6587  sub is_author { Line 6643  sub is_author {
   
     #  Author role should show up as a key /domain/_au      #  Author role should show up as a key /domain/_au
   
     my $key    = "/$domain/_au";  
     my $value;      my $value;
     if (defined($hashref)) {      if ($hashref) {
  $value = $hashref->{$key};  
     }  
   
     if(defined($value)) {   my $key    = "/$domain/_au";
  &Debug("$user @ $domain is an author");   if (defined($hashref)) {
       $value = $hashref->{$key};
       if(!untie_user_hash($hashref)) {
    return 'error: ' .  ($!+0)." untie (GDBM) Failed";
       }
    }
   
    if(defined($value)) {
       &Debug("$user @ $domain is an author");
    }
       } else {
    return 'error: '.($!+0)." tie (GDBM) Failed";
     }      }
   
     return defined($value);      return defined($value);
 }  }
 #  #
 #   Checks to see if the input roleput request was to set  #   Checks to see if the input roleput request was to set
 # an author role.  If so, invokes the lchtmldir script to set  # an author role.  If so, creates construction space 
 # up a correct public_html   
 # Parameters:  # Parameters:
 #    request   - The request sent to the rolesput subchunk.  #    request   - The request sent to the rolesput subchunk.
 #                We're looking for  /domain/_au  #                We're looking for  /domain/_au
Line 6612  sub is_author { Line 6675  sub is_author {
 #  #
 sub manage_permissions {  sub manage_permissions {
     my ($request, $domain, $user, $authtype) = @_;      my ($request, $domain, $user, $authtype) = @_;
   
     &Debug("manage_permissions: $request $domain $user $authtype");  
   
     # See if the request is of the form /$domain/_au      # See if the request is of the form /$domain/_au
     if($request =~ /^(\/\Q$domain\E\/_au)$/) { # It's an author rolesput...      if($request =~ /^(\/\Q$domain\E\/_au)$/) { # It's an author rolesput...
  my $execdir = $perlvar{'lonDaemons'};          my $path=$perlvar{'lonDocRoot'}."/priv/$domain";
  my $userhome= "/home/$user" ;          unless (-e $path) {        
  &logthis("system $execdir/lchtmldir $userhome $user $authtype");             mkdir($path);
  &Debug("Setting homedir permissions for $userhome");          }
  system("$execdir/lchtmldir $userhome $user $authtype");          unless (-e $path.'/'.$user) {
              mkdir($path.'/'.$user);
           }
     }      }
 }  }
   
Line 7110  sub subscribe { Line 7172  sub subscribe {
                 # the metadata                  # the metadata
  unless ($fname=~/\.meta$/) { &unsub("$fname.meta",$clientip); }   unless ($fname=~/\.meta$/) { &unsub("$fname.meta",$clientip); }
  $fname=~s/\/home\/httpd\/html\/res/raw/;   $fname=~s/\/home\/httpd\/html\/res/raw/;
  $fname="http://".&Apache::lonnet::hostname($perlvar{'lonHostID'})."/".$fname;                  my $protocol = $Apache::lonnet::protocol{$perlvar{'lonHostID'}};
                   $protocol = 'http' if ($protocol ne 'https');
    $fname=$protocol.'://'.&Apache::lonnet::hostname($perlvar{'lonHostID'})."/".$fname;
  $result="$fname\n";   $result="$fname\n";
     }      }
  } else {   } else {
Line 7152  sub change_unix_password { Line 7216  sub change_unix_password {
   
   
 sub make_passwd_file {  sub make_passwd_file {
     my ($uname, $umode,$npass,$passfilename)=@_;      my ($uname,$udom,$umode,$npass,$passfilename)=@_;
     my $result="ok";      my $result="ok";
     if ($umode eq 'krb4' or $umode eq 'krb5') {      if ($umode eq 'krb4' or $umode eq 'krb5') {
  {   {
Line 7193  sub make_passwd_file { Line 7257  sub make_passwd_file {
     #      #
     my $uid = getpwnam($uname);      my $uid = getpwnam($uname);
     if((defined $uid) && ($uid == 0)) {      if((defined $uid) && ($uid == 0)) {
  &logthis(">>>Attempted to create privilged account blocked");   &logthis(">>>Attempt to create privileged account blocked");
  return "no_priv_account_error\n";   return "no_priv_account_error\n";
     }      }
   
Line 7205  sub make_passwd_file { Line 7269  sub make_passwd_file {
  &Debug("user  = ".$uname.", Password =". $npass);   &Debug("user  = ".$uname.", Password =". $npass);
  my $se = IO::File->new("|$execpath > $perlvar{'lonDaemons'}/logs/lcuseradd.log");   my $se = IO::File->new("|$execpath > $perlvar{'lonDaemons'}/logs/lcuseradd.log");
  print $se "$uname\n";   print $se "$uname\n";
                   print $se "$udom\n";
  print $se "$npass\n";   print $se "$npass\n";
  print $se "$npass\n";   print $se "$npass\n";
  print $se "$lc_error_file\n"; # Status -> unique file.   print $se "$lc_error_file\n"; # Status -> unique file.
Line 7298  sub get_usersession_config { Line 7363  sub get_usersession_config {
     return;      return;
 }  }
   
   
   # 
   # get_courseinfo_hash() is used to retrieve course information from the db
   # file: nohist_courseids.db for a course for which the current server is *not*
   # the home server.
   #
   # A hash of a hash will be retrieved. The outer hash contains a single key --
   # courseID -- for the course for which the data are being requested.
   # The contents of the inner hash, for that single item in the outer hash
   # are returned (and cached in memcache for 10 minutes).
   # 
   
 sub get_courseinfo_hash {  sub get_courseinfo_hash {
     my ($cnum,$cdom,$home) = @_;      my ($cnum,$cdom,$home) = @_;
     my $hashid = $cdom.':'.$cnum;      my %info;
     my ($courseinfo,$cached)=&Apache::lonnet::is_cached_new('courseinfo',$hashid);      eval {
     if (defined($cached)) {          local($SIG{ALRM}) = sub { die "timeout\n"; };
         return $courseinfo;          local($SIG{__DIE__})='DEFAULT';
           alarm(3);
           %info = &Apache::lonnet::courseiddump($cdom,'.',1,'.','.',$cnum,1,[$home],'.');
           alarm(0);
       };
       if ($@) {
           if ($@ eq "timeout\n") {
               &logthis("<font color='blue'>WARNING courseiddump for $cnum:$cdom from $home timedout</font>");
           } else {
               &logthis("<font color='yellow'>WARNING unexpected error during eval of call for courseiddump from $home</font>");
           }
     } else {      } else {
         my %info = &Apache::lonnet::courseiddump($cdom,'.',1,'.','.',$cnum,1,[$home],'.');  
         if (ref($info{$cdom.'_'.$cnum}) eq 'HASH') {          if (ref($info{$cdom.'_'.$cnum}) eq 'HASH') {
               my $hashid = $cdom.':'.$cnum;
             return &Apache::lonnet::do_cache_new('courseinfo',$hashid,$info{$cdom.'_'.$cnum},600);              return &Apache::lonnet::do_cache_new('courseinfo',$hashid,$info{$cdom.'_'.$cnum},600);
         }          }
     }      }
     return;      return;
 }  }
   
   
   sub distro_and_arch {
       return $dist.':'.$arch;
   }
   
 # ----------------------------------- POD (plain old documentation, CPAN style)  # ----------------------------------- POD (plain old documentation, CPAN style)
   
 =head1 NAME  =head1 NAME
Line 7637  Authen::Krb5 Line 7729  Authen::Krb5
   
 =head1 COREQUISITES  =head1 COREQUISITES
   
   none
   
 =head1 OSNAMES  =head1 OSNAMES
   
 linux  linux
Line 7724  or the CA's certificate in the call to l Line 7818  or the CA's certificate in the call to l
 <error> is the textual reason this failed.  Usual reasons:  <error> is the textual reason this failed.  Usual reasons:
   
 =over 2  =over 2
          
 =item Apache config file for loncapa  incorrect:  =item Apache config file for loncapa  incorrect:
    
 one of the variables   one of the variables 
 lonCertificateDirectory, lonnetCertificateAuthority, or lonnetCertificate  lonCertificateDirectory, lonnetCertificateAuthority, or lonnetCertificate
 undefined or incorrect  undefined or incorrect
Line 7845  Could not rewrite the Line 7939  Could not rewrite the
 internal password file for a user  internal password file for a user
   
 =item Result of password change for <user> : <result>  =item Result of password change for <user> : <result>
                                                                        
 A unix password change for <user> was attempted   A unix password change for <user> was attempted 
 and the pipe returned <result>    and the pipe returned <result>  
   
Line 7874  lond has been asked to exit by its clien Line 7968  lond has been asked to exit by its clien
 client systemand <input> is the full exit command sent to the server.  client systemand <input> is the full exit command sent to the server.
   
 =item Red CRITICAL: ABNORMAL EXIT. child <pid> for server <hostname> died through a crass with this error->[<message>].  =item Red CRITICAL: ABNORMAL EXIT. child <pid> for server <hostname> died through a crass with this error->[<message>].
                                                    
 A lond child terminated.  NOte that this termination can also occur when the  A lond child terminated.  NOte that this termination can also occur when the
 child receives the QUIT or DIE signals.  <pid> is the process id of the child,  child receives the QUIT or DIE signals.  <pid> is the process id of the child,
 <hostname> the host lond is working for, and <message> the reason the child died  <hostname> the host lond is working for, and <message> the reason the child died
Line 7958  file when sent it's USR1 signal.  That p Line 8052  file when sent it's USR1 signal.  That p
 assumed to be hung in some un-fixable way.  assumed to be hung in some un-fixable way.
   
 =item Finished checking children                     =item Finished checking children                   
    
 Master processs's USR1 processing is cojmplete.  Master processs's USR1 processing is cojmplete.
   
 =item (Red) CRITICAL: ------- Starting ------              =item (Red) CRITICAL: ------- Starting ------            
Line 7972  Started a new child process for <client> Line 8066  Started a new child process for <client>
 connected to the child.  This was as a result of a TCP/IP connection from a client.  connected to the child.  This was as a result of a TCP/IP connection from a client.
   
 =item Unable to determine who caller was, getpeername returned nothing  =item Unable to determine who caller was, getpeername returned nothing
                                                     
 In child process initialization.  either getpeername returned undef or  In child process initialization.  either getpeername returned undef or
 a zero sized object was returned.  Processing continues, but in my opinion,  a zero sized object was returned.  Processing continues, but in my opinion,
 this should be cause for the child to exit.  this should be cause for the child to exit.
Line 7983  In child process initialization.  The pe Line 8077  In child process initialization.  The pe
 The client address is stored as "Unavailable" and processing continues.  The client address is stored as "Unavailable" and processing continues.
   
 =item (Yellow) INFO: Connection <ip> <name> connection type = <type>  =item (Yellow) INFO: Connection <ip> <name> connection type = <type>
                                                     
 In child initialization.  A good connectionw as received from <ip>.  In child initialization.  A good connectionw as received from <ip>.
   
 =over 2  =over 2
Line 8033  The client (<client> is the peer's name Line 8127  The client (<client> is the peer's name
 negotiated an SSL connection with this child process.  negotiated an SSL connection with this child process.
   
 =item (Green) Successful insecure authentication with <client>  =item (Green) Successful insecure authentication with <client>
                                                      
   
 The client has successfully negotiated an  insecure connection withthe child process.  The client has successfully negotiated an  insecure connection withthe child process.
   

Removed from v.1.450  
changed lines
  Added in v.1.492


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