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Diff for /loncom/lond between versions 1.510 and 1.525

version 1.510, 2014/06/09 16:51:47 version 1.525, 2016/09/12 20:20:44
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 41  use IO::File; Line 40  use IO::File;
 #use Apache::File;  #use Apache::File;
 use POSIX;  use POSIX;
 use Crypt::IDEA;  use Crypt::IDEA;
 use LWP::UserAgent();  use HTTP::Request;
 use Digest::MD5 qw(md5_hex);  use Digest::MD5 qw(md5_hex);
 use GDBM_File;  use GDBM_File;
 use Authen::Krb5;  use Authen::Krb5;
Line 55  use LONCAPA::lonssl; Line 54  use LONCAPA::lonssl;
 use Fcntl qw(:flock);  use Fcntl qw(:flock);
 use Apache::lonnet;  use Apache::lonnet;
 use Mail::Send;  use Mail::Send;
   use Crypt::Eksblowfish::Bcrypt;
   use Digest::SHA;
   use Encode;
   use LONCAPA::LWPReq;
   
 my $DEBUG = 0;       # Non zero to enable debug log entries.  my $DEBUG = 0;       # Non zero to enable debug log entries.
   
Line 71  my $clientip;   # IP address of client. Line 74  my $clientip;   # IP address of client.
 my $clientname; # LonCAPA name of client.  my $clientname; # LonCAPA name of client.
 my $clientversion;              # LonCAPA version running on client.  my $clientversion;              # LonCAPA version running on client.
 my $clienthomedom;              # LonCAPA domain of homeID for client.   my $clienthomedom;              # LonCAPA domain of homeID for client. 
                                 # primary library server.   my $clientintdom;               # LonCAPA "internet domain" for client.
   my $clientsameinst;             # LonCAPA "internet domain" same for 
                                   # this host and client.
   my $clientremoteok;             # Client allowed to host domain's users.
                                   # (version constraints ignored), not set
                                   # if this host and client share "internet domain". 
   my %clientprohibited;           # Actions prohibited on client;
    
 my $server;  my $server;
   
 my $keymode;  my $keymode;
Line 142  my @installerrors = ("ok", Line 151  my @installerrors = ("ok",
      );       );
   
 #  #
   # The %trust hash classifies commands according to type of trust 
   # required for execution of the command.
   #
   # When clients from a different institution request execution of a
   # particular command, the trust settings for that institution set
   # for this domain (or default domain for a multi-domain server) will
   # be checked to see if running the command is allowed.
   #
   # Trust types which depend on the "Trust" domain configuration
   # for the machine's default domain are:
   #
   # content   ("Access to this domain's content by others")
   # shared    ("Access to other domain's content by this domain")
   # enroll    ("Enrollment in this domain's courses by others")
   # coaurem   ("Co-author roles for this domain's users elsewhere")
   # domroles  ("Domain roles in this domain assignable to others")
   # catalog   ("Course Catalog for this domain displayed elsewhere")
   # reqcrs    ("Requests for creation of courses in this domain by others")
   # msg       ("Users in other domains can send messages to this domain")
   # 
   # Trust type which depends on the User Session Hosting (remote) 
   # domain configuration for machine's default domain is: "remote".
   #
   # Trust types which depend on contents of manager.tab in 
   # /home/httpd/lonTabs is: "manageronly".
   # 
   # Trust type which requires client to share the same LON-CAPA
   # "internet domain" (i.e., same institution as this server) is:
   # "institutiononly".
   #
   
   my %trust = (
                  auth => {remote => 1},
                  autocreatepassword => {remote => 1},
                  autocrsreqchecks => {remote => 1, reqcrs => 1},
                  autocrsrequpdate => {remote => 1},
                  autocrsreqvalidation => {remote => 1},
                  autogetsections => {remote => 1},
                  autoinstcodedefaults => {remote => 1, catalog => 1},
                  autoinstcodeformat => {remote => 1, catalog => 1},
                  autonewcourse => {remote => 1, reqcrs => 1},
                  autophotocheck => {remote => 1, enroll => 1},
                  autophotochoice => {remote => 1},
                  autophotopermission => {remote => 1, enroll => 1},
                  autopossibleinstcodes => {remote => 1, reqcrs => 1},
                  autoretrieve => {remote => 1, enroll => 1, catalog => 1},
                  autorun => {remote => 1, enroll => 1, reqcrs => 1},
                  autovalidateclass_sec => {catalog => 1},
                  autovalidatecourse => {remote => 1, enroll => 1},
                  autovalidateinstcode => {domroles => 1, remote => 1, enroll => 1},
                  changeuserauth => {remote => 1, domroles => 1},
                  chatretr => {remote => 1, enroll => 1},
                  chatsend => {remote => 1, enroll => 1},
                  courseiddump => {remote => 1, domroles => 1, enroll => 1},
                  courseidput => {remote => 1, domroles => 1, enroll => 1},
                  courseidputhash => {remote => 1, domroles => 1, enroll => 1},
                  courselastaccess => {remote => 1, domroles => 1, enroll => 1},
                  currentauth => {remote => 1, domroles => 1, enroll => 1},
                  currentdump => {remote => 1, enroll => 1},
                  currentversion => {remote=> 1, content => 1},
                  dcmaildump => {remote => 1, domroles => 1},
                  dcmailput => {remote => 1, domroles => 1},
                  del => {remote => 1, domroles => 1, enroll => 1, content => 1},
                  deldom => {remote => 1, domroles => 1}, # not currently used
                  devalidatecache => {institutiononly => 1},
                  domroleput => {remote => 1, enroll => 1},
                  domrolesdump => {remote => 1, catalog => 1},
                  du => {remote => 1, enroll => 1},
                  du2 => {remote => 1, enroll => 1},
                  dump => {remote => 1, enroll => 1, domroles => 1},
                  edit => {institutiononly => 1},  #not used currently
                  eget => {remote => 1, domroles => 1, enroll => 1}, #not used currently
                  ekey => {}, #not used currently
                  exit => {anywhere => 1},
                  fetchuserfile => {remote => 1, enroll => 1},
                  get => {remote => 1, domroles => 1, enroll => 1},
                  getdom => {anywhere => 1},
                  home => {anywhere => 1},
                  iddel => {remote => 1, enroll => 1},
                  idget => {remote => 1, enroll => 1},
                  idput => {remote => 1, domroles => 1, enroll => 1},
                  inc => {remote => 1, enroll => 1},
                  init => {anywhere => 1},
                  inst_usertypes => {remote => 1, domroles => 1, enroll => 1},
                  instemailrules => {remote => 1, domroles => 1},
                  instidrulecheck => {remote => 1, domroles => 1,},
                  instidrules => {remote => 1, domroles => 1,},
                  instrulecheck => {remote => 1, enroll => 1, reqcrs => 1, domroles => 1},
                  instselfcreatecheck => {institutiononly => 1},
                  instuserrules => {remote => 1, enroll => 1, reqcrs => 1, domroles => 1},
                  keys => {remote => 1,},
                  load => {anywhere => 1},
                  log => {anywhere => 1},
                  ls => {remote => 1, enroll => 1, content => 1,},
                  ls2 => {remote => 1, enroll => 1, content => 1,},
                  ls3 => {remote => 1, enroll => 1, content => 1,},
                  makeuser => {remote => 1, enroll => 1, domroles => 1,},
                  mkdiruserfile => {remote => 1, enroll => 1,},
                  newput => {remote => 1, enroll => 1, reqcrs => 1, domroles => 1,},
                  passwd => {remote => 1},
                  ping => {anywhere => 1},
                  pong => {anywhere => 1},
                  pushfile => {manageronly => 1},
                  put => {remote => 1, enroll => 1, domroles => 1, msg => 1, content => 1, shared => 1},
                  putdom => {remote => 1, domroles => 1,},
                  putstore => {remote => 1, enroll => 1},
                  queryreply => {anywhere => 1},
                  querysend => {anywhere => 1},
                  quit => {anywhere => 1},
                  readlonnetglobal => {institutiononly => 1},
                  reinit => {manageronly => 1}, #not used currently
                  removeuserfile => {remote => 1, enroll => 1},
                  renameuserfile => {remote => 1,},
                  restore => {remote => 1, enroll => 1, reqcrs => 1,},
                  rolesdel => {remote => 1, enroll => 1, domroles => 1, coaurem => 1},
                  rolesput => {remote => 1, enroll => 1, domroles => 1, coaurem => 1},
                  serverdistarch => {manageronly => 1},
                  serverhomeID => {anywhere => 1},
                  serverloncaparev => {anywhere => 1},
                  servertimezone => {remote => 1, enroll => 1},
                  setannounce => {remote => 1, domroles => 1},
                  sethost => {anywhere => 1},
                  store => {remote => 1, enroll => 1, reqcrs => 1,},
                  studentphoto => {remote => 1, enroll => 1},
                  sub => {content => 1,},
                  tmpdel => {anywhere => 1},
                  tmpget => {anywhere => 1},
                  tmpput => {anywhere => 1},
                  tokenauthuserfile => {anywhere => 1},
                  unsub => {content => 1,},
                  update => {shared => 1},
                  updateclickers => {remote => 1},
                  userhassession => {anywhere => 1},
                  userload => {anywhere => 1},
                  version => {anywhere => 1}, #not used
               );
   
   #
 #   Statistics that are maintained and dislayed in the status line.  #   Statistics that are maintained and dislayed in the status line.
 #  #
 my $Transactions = 0; # Number of attempted transactions.  my $Transactions = 0; # Number of attempted transactions.
Line 664  sub PushFile { Line 811  sub PushFile {
                 $clientprotocol = 'http' if ($clientprotocol ne 'https');                  $clientprotocol = 'http' if ($clientprotocol ne 'https');
                 my $url = '/adm/'.$filename;                  my $url = '/adm/'.$filename;
                 $url =~ s{_}{/};                  $url =~ s{_}{/};
                 my $ua=new LWP::UserAgent;  
                 $ua->timeout(60);  
                 my $request=new HTTP::Request('GET',"$clientprotocol://$clienthost$url");                  my $request=new HTTP::Request('GET',"$clientprotocol://$clienthost$url");
                 my $response=$ua->request($request);                  my $response = LONCAPA::LWPReq::makerequest($clientname,$request,'',\%perlvar,60,0);
                 if ($response->is_error()) {                  if ($response->is_error()) {
                     &logthis('<font color="red"> Pushfile: unable to install '                      &logthis('<font color="red"> Pushfile: unable to install '
                             .$tablefile." - error attempting to pull data. </font>");                              .$tablefile." - error attempting to pull data. </font>");
Line 1794  sub server_distarch_handler { Line 1939  sub server_distarch_handler {
 }  }
 &register_handler("serverdistarch", \&server_distarch_handler, 0, 1, 0);  &register_handler("serverdistarch", \&server_distarch_handler, 0, 1, 0);
   
   sub server_certs_handler {
       my ($cmd,$tail,$client) = @_;
       my $userinput = "$cmd:$tail";
       my $result;
       my $result = &LONCAPA::Lond::server_certs(\%perlvar);
       &Reply($client,\$result,$userinput);
       return;
   }
   &register_handler("servercerts", \&server_certs_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 1926  sub authenticate_handler { Line 2081  sub authenticate_handler {
                 my ($remote,$hosted);                  my ($remote,$hosted);
                 my $remotesession = &get_usersession_config($udom,'remotesession');                  my $remotesession = &get_usersession_config($udom,'remotesession');
                 if (ref($remotesession) eq 'HASH') {                  if (ref($remotesession) eq 'HASH') {
                     $remote = $remotesession->{'remote'}                      $remote = $remotesession->{'remote'};
                 }                  }
                 my $hostedsession = &get_usersession_config($clienthomedom,'hostedsession');                  my $hostedsession = &get_usersession_config($clienthomedom,'hostedsession');
                 if (ref($hostedsession) eq 'HASH') {                  if (ref($hostedsession) eq 'HASH') {
Line 2013  sub change_password_handler { Line 2168  sub change_password_handler {
  my ($howpwd,$contentpwd)=split(/:/,$realpasswd);   my ($howpwd,$contentpwd)=split(/:/,$realpasswd);
  if ($howpwd eq 'internal') {   if ($howpwd eq 'internal') {
     &Debug("internal auth");      &Debug("internal auth");
     my $salt=time;              my $ncpass = &hash_passwd($udom,$npass);
     $salt=substr($salt,6,2);  
     my $ncpass=crypt($npass,$salt);  
     if(&rewrite_password_file($udom, $uname, "internal:$ncpass")) {      if(&rewrite_password_file($udom, $uname, "internal:$ncpass")) {
  my $msg="Result of password change for $uname: pwchange_success";   my $msg="Result of password change for $uname: pwchange_success";
                 if ($lonhost) {                  if ($lonhost) {
                     $msg .= " - request originated from: $lonhost";                      $msg .= " - request originated from: $lonhost";
                 }                  }
                 &logthis($msg);                  &logthis($msg);
                   &update_passwd_history($uname,$udom,$howpwd,$context);
  &Reply($client, "ok\n", $userinput);   &Reply($client, "ok\n", $userinput);
     } else {      } else {
  &logthis("Unable to open $uname passwd "                  &logthis("Unable to open $uname passwd "               
Line 2030  sub change_password_handler { Line 2184  sub change_password_handler {
     }      }
  } elsif ($howpwd eq 'unix' && $context ne 'reset_by_email') {   } elsif ($howpwd eq 'unix' && $context ne 'reset_by_email') {
     my $result = &change_unix_password($uname, $npass);      my $result = &change_unix_password($uname, $npass);
               if ($result eq 'ok') {
                   &update_passwd_history($uname,$udom,$howpwd,$context);
                }
     &logthis("Result of password change for $uname: ".      &logthis("Result of password change for $uname: ".
      $result);       $result);
     &Reply($client, \$result, $userinput);      &Reply($client, \$result, $userinput);
Line 2052  sub change_password_handler { Line 2209  sub change_password_handler {
 }  }
 &register_handler("passwd", \&change_password_handler, 1, 1, 0);  &register_handler("passwd", \&change_password_handler, 1, 1, 0);
   
   sub hash_passwd {
       my ($domain,$plainpass,@rest) = @_;
       my ($salt,$cost);
       if (@rest) {
           $cost = $rest[0];
           # salt is first 22 characters, base-64 encoded by bcrypt
           my $plainsalt = substr($rest[1],0,22);
           $salt = Crypt::Eksblowfish::Bcrypt::de_base64($plainsalt);
       } else {
           my $defaultcost;
           my %domconfig =
               &Apache::lonnet::get_dom('configuration',['password'],$domain);
           if (ref($domconfig{'password'}) eq 'HASH') {
               $defaultcost = $domconfig{'password'}{'cost'};
           }
           if (($defaultcost eq '') || ($defaultcost =~ /D/)) {
               $cost = 10;
           } else {
               $cost = $defaultcost;
           }
           # Generate random 16-octet base64 salt
           $salt = "";
           $salt .= pack("C", int rand(256)) for 1..16;
       }
       my $hash = &Crypt::Eksblowfish::Bcrypt::bcrypt_hash({
           key_nul => 1,
           cost    => $cost,
           salt    => $salt,
       }, Digest::SHA::sha512(Encode::encode('UTF-8',$plainpass)));
   
       my $result = join("!", "", "bcrypt", sprintf("%02d",$cost),
                   &Crypt::Eksblowfish::Bcrypt::en_base64($salt).
                   &Crypt::Eksblowfish::Bcrypt::en_base64($hash));
       return $result;
   }
   
 #  #
 #   Create a new user.  User in this case means a lon-capa user.  #   Create a new user.  User in this case means a lon-capa user.
 #   The user must either already exist in some authentication realm  #   The user must either already exist in some authentication realm
Line 2095  sub add_user_handler { Line 2288  sub add_user_handler {
     ."makeuser";      ."makeuser";
     }      }
     unless ($fperror) {      unless ($fperror) {
  my $result=&make_passwd_file($uname,$udom,$umode,$npass, $passfilename);   my $result=&make_passwd_file($uname,$udom,$umode,$npass,
                                                $passfilename,'makeuser');
  &Reply($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 2164  sub change_authentication_handler { Line 2358  sub change_authentication_handler {
  my $result = &change_unix_password($uname, $npass);   my $result = &change_unix_password($uname, $npass);
  &logthis("Result of password change for $uname: ".$result);   &logthis("Result of password change for $uname: ".$result);
  if ($result eq "ok") {   if ($result eq "ok") {
                       &update_passwd_history($uname,$udom,$umode,'changeuserauth'); 
     &Reply($client, \$result);      &Reply($client, \$result);
  } else {   } else {
     &Failure($client, \$result);      &Failure($client, \$result);
  }   }
     } else {      } else {
  my $result=&make_passwd_file($uname,$udom,$umode,$npass,$passfilename);   my $result=&make_passwd_file($uname,$udom,$umode,$npass,
                                                $passfilename,'changeuserauth');
  #   #
  #  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 2190  sub change_authentication_handler { Line 2386  sub change_authentication_handler {
 }  }
 &register_handler("changeuserauth", \&change_authentication_handler, 1,1, 0);  &register_handler("changeuserauth", \&change_authentication_handler, 1,1, 0);
   
   sub update_passwd_history {
       my ($uname,$udom,$umode,$context) = @_;
       my $proname=&propath($udom,$uname);
       my $now = time;
       if (open(my $fh,">>$proname/passwd.log")) {
           print $fh "$now:$umode:$context\n";
           close($fh);
       }
       return;
   }
   
 #  #
 #   Determines if this is the home server for a user.  The home server  #   Determines if this is the home server for a user.  The home server
 #   for a user will have his/her lon-capa passwd file.  Therefore all we need  #   for a user will have his/her lon-capa passwd file.  Therefore all we need
Line 2276  sub update_resource_handler { Line 2483  sub update_resource_handler {
 # FIXME: this should use the LWP mechanism, not internal alarms.  # FIXME: this should use the LWP mechanism, not internal alarms.
                 alarm(1200);                  alarm(1200);
  {   {
     my $ua=new LWP::UserAgent;  
     my $request=new HTTP::Request('GET',"$remoteurl");      my $request=new HTTP::Request('GET',"$remoteurl");
     $response=$ua->request($request,$transname);                      $response=&LONCAPA::LWPReq::makerequest($clientname,$request,$transname,\%perlvar,1200,0,1);
  }   }
  alarm(0);   alarm(0);
  if ($response->is_error()) {   if ($response->is_error()) {
Line 2291  sub update_resource_handler { Line 2497  sub update_resource_handler {
 # FIXME: isn't there an internal LWP mechanism for this?  # FIXME: isn't there an internal LWP mechanism for this?
  alarm(120);   alarm(120);
  {   {
     my $ua=new LWP::UserAgent;  
     my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');      my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
     my $mresponse=$ua->request($mrequest,$fname.'.meta');                              my $mresponse = &LONCAPA::LWPReq::makerequest($clientname,$mrequest,$fname.'.meta',\%perlvar,120,0,1);
     if ($mresponse->is_error()) {      if ($mresponse->is_error()) {
  unlink($fname.'.meta');   unlink($fname.'.meta');
     }      }
Line 2368  sub fetch_user_file_handler { Line 2573  sub fetch_user_file_handler {
  my $remoteurl=$clientprotocol.'://'.$clienthost.'/userfiles/'.$fname;   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(1200);
  {   {
     my $ua=new LWP::UserAgent;  
     my $request=new HTTP::Request('GET',"$remoteurl");      my $request=new HTTP::Request('GET',"$remoteurl");
     $response=$ua->request($request,$transname);              my $verifycert = 1;
               my @machine_ids = &Apache::lonnet::current_machine_ids();
               if (grep(/^\Q$clientname\E$/,@machine_ids)) {
                   $verifycert = 0;
               }
               $response = &LONCAPA::LWPReq::makerequest($clientname,$request,$transname,\%perlvar,1200,$verifycert);
  }   }
  alarm(0);   alarm(0);
  if ($response->is_error()) {   if ($response->is_error()) {
Line 2441  sub remove_user_file_handler { Line 2650  sub remove_user_file_handler {
     if (-e $file) {      if (-e $file) {
  #   #
  #   If the file is a regular file unlink is fine...   #   If the file is a regular file unlink is fine...
  #   However it's possible the client wants a dir.   #   However it's possible the client wants a dir 
  #   removed, in which case rmdir is more approprate:   #   removed, in which case rmdir is more appropriate.
    #   Note: rmdir will only remove an empty directory.
  #   #
         if (-f $file){          if (-f $file){
     unlink($file);      unlink($file);
                       # for html files remove the associated .bak file 
                       # which may have been created by the editor.
                       if ($ufile =~ m{^((docs|supplemental)/(?:\d+|default)/\d+(?:|/.+)/)[^/]+\.x?html?$}i) {
                           my $path = $1;
                           if (-e $file.'.bak') {
                               unlink($file.'.bak');
                           }
                       }
  } elsif(-d $file) {   } elsif(-d $file) {
     rmdir($file);      rmdir($file);
  }   }
Line 2808  sub newput_user_profile_entry { Line 3026  sub newput_user_profile_entry {
     foreach my $pair (@pairs) {      foreach my $pair (@pairs) {
  my ($key,$value)=split(/=/,$pair);   my ($key,$value)=split(/=/,$pair);
  if (exists($hashref->{$key})) {   if (exists($hashref->{$key})) {
     &Failure($client, "key_exists: ".$key."\n",$userinput);              if (!&untie_user_hash($hashref)) {
     return 1;                  &logthis("error: ".($!+0)." untie (GDBM) failed ".
                            "while attempting newput - early out as key exists");
               }
               &Failure($client, "key_exists: ".$key."\n",$userinput);
               return 1;
  }   }
     }      }
   
Line 3322  sub dump_with_regexp { Line 3544  sub dump_with_regexp {
 #                          namespace   - Name of the database being modified  #                          namespace   - Name of the database being modified
 #                          rid         - Resource keyword to modify.  #                          rid         - Resource keyword to modify.
 #                          what        - new value associated with rid.  #                          what        - new value associated with rid.
   #                          laststore   - (optional) version=timestamp
   #                                        for most recent transaction for rid
   #                                        in namespace, when cstore was called
 #  #
 #    $client             - Socket open on the client.  #    $client             - Socket open on the client.
 #  #
Line 3330  sub dump_with_regexp { Line 3555  sub dump_with_regexp {
 #      1 (keep on processing).  #      1 (keep on processing).
 #  Side-Effects:  #  Side-Effects:
 #    Writes to the client  #    Writes to the client
   #    Successful storage will cause either 'ok', or, if $laststore was included
   #    in the tail of the request, and the version number for the last transaction
   #    is larger than the version in $laststore, delay:$numtrans , where $numtrans
   #    is the number of store evevnts recorded for rid in namespace since
   #    lonnet::store() was called by the client.
   #
 sub store_handler {  sub store_handler {
     my ($cmd, $tail, $client) = @_;      my ($cmd, $tail, $client) = @_;
     
     my $userinput = "$cmd:$tail";      my $userinput = "$cmd:$tail";
       chomp($tail);
     my ($udom,$uname,$namespace,$rid,$what) =split(/:/,$tail);      my ($udom,$uname,$namespace,$rid,$what,$laststore) =split(/:/,$tail);
     if ($namespace ne 'roles') {      if ($namespace ne 'roles') {
   
  chomp($what);  
  my @pairs=split(/\&/,$what);   my @pairs=split(/\&/,$what);
  my $hashref  = &tie_user_hash($udom, $uname, $namespace,   my $hashref  = &tie_user_hash($udom, $uname, $namespace,
        &GDBM_WRCREAT(), "S",         &GDBM_WRCREAT(), "S",
        "$rid:$what");         "$rid:$what");
  if ($hashref) {   if ($hashref) {
     my $now = time;      my $now = time;
     my @previouskeys=split(/&/,$hashref->{"keys:$rid"});              my $numtrans;
     my $key;              if ($laststore) {
                   my ($previousversion,$previoustime) = split(/\=/,$laststore);
                   my ($lastversion,$lasttime) = (0,0);
                   $lastversion = $hashref->{"version:$rid"};
                   if ($lastversion) {
                       $lasttime = $hashref->{"$lastversion:$rid:timestamp"};
                   }
                   if (($previousversion) && ($previousversion !~ /\D/)) {
                       if (($lastversion > $previousversion) && ($lasttime >= $previoustime)) {
                           $numtrans = $lastversion - $previousversion;
                       }
                   } elsif ($lastversion) {
                       $numtrans = $lastversion;
                   }
                   if ($numtrans) {
                       $numtrans =~ s/D//g;
                   }
               }
     $hashref->{"version:$rid"}++;      $hashref->{"version:$rid"}++;
     my $version=$hashref->{"version:$rid"};      my $version=$hashref->{"version:$rid"};
     my $allkeys='';       my $allkeys=''; 
Line 3359  sub store_handler { Line 3606  sub store_handler {
     $allkeys.='timestamp';      $allkeys.='timestamp';
     $hashref->{"$version:keys:$rid"}=$allkeys;      $hashref->{"$version:keys:$rid"}=$allkeys;
     if (&untie_user_hash($hashref)) {      if (&untie_user_hash($hashref)) {
  &Reply($client, "ok\n", $userinput);                  my $msg = 'ok';
                   if ($numtrans) {
                       $msg = 'delay:'.$numtrans;
                   }
    &Reply($client, "$msg\n", $userinput);
     } else {      } else {
  &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ".   &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ".
  "while attempting store\n", $userinput);   "while attempting store\n", $userinput);
Line 4344  sub put_domain_handler { Line 4595  sub put_domain_handler {
 }  }
 &register_handler("putdom", \&put_domain_handler, 0, 1, 0);  &register_handler("putdom", \&put_domain_handler, 0, 1, 0);
   
   # Updates one or more entries in clickers.db file at the domain level
   #
   # Parameters:
   #    $cmd      - The command that got us here.
   #    $tail     - Tail of the command (remaining parameters).
   #                In this case a colon separated list containing:
   #                (a) the domain for which we are updating the entries,
   #                (b) the action required -- add or del -- and
   #                (c) a &-separated list of entries to add or delete.
   #    $client   - File descriptor connected to client.
   # Returns
   #     1        - Continue processing.
   #     0        - Requested to exit, caller should shut down.
   #  Side effects:
   #     reply is written to $client.
   #
   
   
   sub update_clickers {
       my ($cmd, $tail, $client)  = @_;
   
       my $userinput = "$cmd:$tail";
       my ($udom,$action,$what) =split(/:/,$tail,3);
       chomp($what);
   
       my $hashref = &tie_domain_hash($udom, "clickers", &GDBM_WRCREAT(),
                                    "U","$action:$what");
   
       if (!$hashref) {
           &Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ".
                     "while attempting updateclickers\n", $userinput);
           return 1;
       }
   
       my @pairs=split(/\&/,$what);
       foreach my $pair (@pairs) {
           my ($key,$value)=split(/=/,$pair);
           if ($action eq 'add') {
               if (exists($hashref->{$key})) {
                   my @newvals = split(/,/,&unescape($value));
                   my @currvals = split(/,/,&unescape($hashref->{$key}));
                   my @merged = sort(keys(%{{map { $_ => 1 } (@newvals,@currvals)}}));
                   $hashref->{$key}=&escape(join(',',@merged));
               } else {
                   $hashref->{$key}=$value;
               }
           } elsif ($action eq 'del') {
               if (exists($hashref->{$key})) {
                   my %current;
                   map { $current{$_} = 1; } split(/,/,&unescape($hashref->{$key}));
                   map { delete($current{$_}); } split(/,/,&unescape($value));
                   if (keys(%current)) {
                       $hashref->{$key}=&escape(join(',',sort(keys(%current))));
                   } else {
                       delete($hashref->{$key});
                   }
               }
           }
       }
       if (&untie_user_hash($hashref)) {
           &Reply( $client, "ok\n", $userinput);
       } else {
           &Failure($client, "error: ".($!+0)." untie(GDBM) failed ".
                    "while attempting put\n",
                    $userinput);
       }
       return 1;
   }
   &register_handler("updateclickers", \&update_clickers, 0, 1, 0);
   
   
   # Deletes one or more entries in a namespace db file at the domain level
   #
   # Parameters:
   #    $cmd      - The command that got us here.
   #    $tail     - Tail of the command (remaining parameters).
   #                In this case a colon separated list containing:
   #                (a) the domain for which we are deleting the entries,
   #                (b) &-separated list of keys to delete.  
   #    $client   - File descriptor connected to client.
   # Returns
   #     1        - Continue processing.
   #     0        - Requested to exit, caller should shut down.
   #  Side effects:
   #     reply is written to $client.
   #
   
   sub del_domain_handler {
       my ($cmd,$tail,$client) = @_;
   
       my $userinput = "$cmd:$tail";
   
       my ($udom,$namespace,$what)=split(/:/,$tail,3);
       chomp($what);
       my $hashref = &tie_domain_hash($udom,$namespace,&GDBM_WRCREAT(),
                                      "D", $what);
       if ($hashref) {
           my @keys=split(/\&/,$what);
           foreach my $key (@keys) {
               delete($hashref->{$key});
           }
           if (&untie_user_hash($hashref)) {
               &Reply($client, "ok\n", $userinput);
           } else {
               &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ".
                       "while attempting deldom\n", $userinput);
           }
       } else {
           &Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ".
                    "while attempting deldom\n", $userinput);
       }
       return 1;
   }
   &register_handler("deldom", \&del_domain_handler, 0, 1, 0);
   
   
 # Unencrypted get from the namespace database file at the domain level.  # Unencrypted get from the namespace database file at the domain level.
 # This function retrieves a keyed item from a specific named database in the  # This function retrieves a keyed item from a specific named database in the
 # domain directory.  # domain directory.
Line 5249  sub create_auto_enroll_password_handler Line 5616  sub create_auto_enroll_password_handler
 &register_handler("autocreatepassword", \&create_auto_enroll_password_handler,   &register_handler("autocreatepassword", \&create_auto_enroll_password_handler, 
   0, 1, 0);    0, 1, 0);
   
   sub auto_export_grades_handler {
       my ($cmd, $tail, $client) = @_;
       my $userinput = "$cmd:$tail";
       my ($cdom,$cnum,$info,$data) = split(/:/,$tail);
       my $inforef = &Apache::lonnet::thaw_unescape($info);
       my $dataref = &Apache::lonnet::thaw_unescape($data);
       my ($outcome,$result);;
       eval {
           local($SIG{__DIE__})='DEFAULT';
           my %rtnhash;
           $outcome=&localenroll::export_grades($cdom,$cnum,$inforef,$dataref,\%rtnhash);
           if ($outcome eq 'ok') {
               foreach my $key (keys(%rtnhash)) {
                   $result .= &escape($key).'='.&Apache::lonnet::freeze_escape($rtnhash{$key}).'&';
               }
               $result =~ s/\&$//;
           }
       };
       if (!$@) {
           if ($outcome eq 'ok') {
               if ($cipher) {
                   my $cmdlength=length($result);
                   $result.="         ";
                   my $encresult='';
                   for (my $encidx=0;$encidx<=$cmdlength;$encidx+=8) {
                       $encresult.= unpack("H16",
                                           $cipher->encrypt(substr($result,
                                                                   $encidx,
                                                                   8)));
                   }
                   &Reply( $client, "enc:$cmdlength:$encresult\n", $userinput);
               } else {
                   &Failure( $client, "error:no_key\n", $userinput);
               }
           } else {
               &Reply($client, "$outcome\n", $userinput);
           }
       } else {
           &Failure($client,"export_error\n",$userinput);
       }
       return 1;
   }
   &register_handler("autoexportgrades", \&auto_export_grades_handler,
                     0, 1, 0);
   
 #   Retrieve and remove temporary files created by/during autoenrollment.  #   Retrieve and remove temporary files created by/during autoenrollment.
 #  #
 # Formal Parameters:  # Formal Parameters:
Line 5269  sub retrieve_auto_file_handler { Line 5681  sub retrieve_auto_file_handler {
     my ($filename)   = split(/:/, $tail);      my ($filename)   = split(/:/, $tail);
   
     my $source = $perlvar{'lonDaemons'}.'/tmp/'.$filename;      my $source = $perlvar{'lonDaemons'}.'/tmp/'.$filename;
     if ( (-e $source) && ($filename ne '') ) {  
       if ($filename =~m{/\.\./}) {
           &Failure($client, "refused\n", $userinput);
       } elsif ( (-e $source) && ($filename ne '') ) {
  my $reply = '';   my $reply = '';
  if (open(my $fh,$source)) {   if (open(my $fh,$source)) {
     while (<$fh>) {      while (<$fh>) {
Line 5301  sub crsreq_checks_handler { Line 5716  sub crsreq_checks_handler {
     my $userinput = "$cmd:$tail";      my $userinput = "$cmd:$tail";
     my $dom = $tail;      my $dom = $tail;
     my $result;      my $result;
     my @reqtypes = ('official','unofficial','community','textbook');      my @reqtypes = ('official','unofficial','community','textbook','placement');
     eval {      eval {
         local($SIG{__DIE__})='DEFAULT';          local($SIG{__DIE__})='DEFAULT';
         my %validations;          my %validations;
Line 5377  sub crsreq_update_handler { Line 5792  sub crsreq_update_handler {
                                                 $title,$code,$accessstart,$accessend,                                                  $title,$code,$accessstart,$accessend,
                                                 $incoming,\%rtnhash);                                                  $incoming,\%rtnhash);
         if ($outcome eq 'ok') {          if ($outcome eq 'ok') {
             my @posskeys = qw(createdweb createdmsg queuedweb queuedmsg formitems reviewweb);              my @posskeys = qw(createdweb createdmsg createdcustomized createdactions queuedweb queuedmsg formitems reviewweb validationjs onload javascript);
             foreach my $key (keys(%rtnhash)) {              foreach my $key (keys(%rtnhash)) {
                 if (grep(/^\Q$key\E/,@posskeys)) {                  if (grep(/^\Q$key\E/,@posskeys)) {
                     $result .= &escape($key).'='.&Apache::lonnet::freeze_escape($rtnhash{$key}).'&';                      $result .= &escape($key).'='.&Apache::lonnet::freeze_escape($rtnhash{$key}).'&';
Line 5906  sub get_request { Line 6321  sub get_request {
 #  #
 # Parameters:  # Parameters:
 #    user_input   - The request received from the client (lonc).  #    user_input   - The request received from the client (lonc).
   #
 # Returns:  # Returns:
 #    true to keep processing, false if caller should exit.  #    true to keep processing, false if caller should exit.
 #  #
 sub process_request {  sub process_request {
     my ($userinput) = @_;      # Easier for now to break style than to      my ($userinput) = @_; # Easier for now to break style than to
                                 # fix all the userinput -> user_input.                            # fix all the userinput -> user_input.
     my $wasenc    = 0; # True if request was encrypted.      my $wasenc    = 0; # True if request was encrypted.
 # ------------------------------------------------------------ See if encrypted  # ------------------------------------------------------------ See if encrypted
     # for command      # for command
Line 5991  sub process_request { Line 6407  sub process_request {
     Debug("Client not privileged to do this operation");      Debug("Client not privileged to do this operation");
     $ok = 0;      $ok = 0;
  }   }
           if ($ok) {
               if (ref($trust{$command}) eq 'HASH') {
                   my $donechecks;
                   if ($trust{$command}{'anywhere'}) {
                      $donechecks = 1;
                   } elsif ($trust{$command}{'manageronly'}) {
                       unless (&isManager()) {
                           $ok = 0;
                       }
                       $donechecks = 1;
                   } elsif ($trust{$command}{'institutiononly'}) {
                       unless ($clientsameinst) {
                           $ok = 0;
                       }
                       $donechecks = 1;
                   } elsif ($clientsameinst) {
                       $donechecks = 1;
                   }
                   unless ($donechecks) {
                       foreach my $rule (keys(%{$trust{$command}})) {
                           next if ($rule eq 'remote');
                           if ($trust{$command}{$rule}) {
                               if ($clientprohibited{$rule}) {
                                   $ok = 0;
                               } else {
                                   $ok = 1;
                                   $donechecks = 1;
                                   last;
                               }
                           }
                       }
                   }
                   unless ($donechecks) {
                       if ($trust{$command}{'remote'}) {
                           if ($clientremoteok) {
                               $ok = 1;
                           } else {
                               $ok = 0;
                           } 
                       }
                   }
               }
           }
   
  if($ok) {   if($ok) {
     Debug("Dispatching to handler $command $tail");      Debug("Dispatching to handler $command $tail");
Line 6001  sub process_request { Line 6460  sub process_request {
     Failure($client, "refused\n", $userinput);      Failure($client, "refused\n", $userinput);
     return 1;      return 1;
  }   }
       }
     }      
   
     print $client "unknown_cmd\n";      print $client "unknown_cmd\n";
 # -------------------------------------------------------------------- complete  # -------------------------------------------------------------------- complete
Line 6594  sub make_new_child { Line 7052  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 'fedora5') || ($dist eq 'fedora4') ||    
  ($dist eq 'fedora6') || ($dist eq 'suse9.3') ||          my $no_ets;
                 ($dist eq 'suse12.2') || ($dist eq 'suse12.3') ||          if ($dist =~ /^(?:centos|rhes|scientific)(\d+)$/) {
                 ($dist eq 'suse13.1')) {              if ($1 >= 7) {
                   $no_ets = 1;
               }
           } elsif ($dist =~ /^suse(\d+\.\d+)$/) {
               if (($1 eq '9.3') || ($1 >= 12.2)) {
                   $no_ets = 1; 
               }
           } elsif ($dist =~ /^sles(\d+)$/) {
               if ($1 > 11) {
                   $no_ets = 1;
               }
           } elsif ($dist =~ /^fedora(\d+)$/) {
               if ($1 < 7) {
                   $no_ets = 1;
               }
           }
           unless ($no_ets) {
     &Authen::Krb5::init_ets();      &Authen::Krb5::init_ets();
  }   }
   
Line 6642  sub make_new_child { Line 7116  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:
  #   #
         logthis("remotereq: $remotereq");  
  (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          # 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,          # version when initiating the connection. For LON-CAPA 2.8 and older,
Line 6744  sub make_new_child { Line 7217  sub make_new_child {
             my $clienthost = &Apache::lonnet::hostname($clientname);              my $clienthost = &Apache::lonnet::hostname($clientname);
             my $clientserverhomeID = &Apache::lonnet::get_server_homeID($clienthost);              my $clientserverhomeID = &Apache::lonnet::get_server_homeID($clienthost);
             $clienthomedom = &Apache::lonnet::host_domain($clientserverhomeID);              $clienthomedom = &Apache::lonnet::host_domain($clientserverhomeID);
               $clientintdom = &Apache::lonnet::internet_dom($clientserverhomeID);
               $clientsameinst = 0;
               if ($clientintdom ne '') {
                   my $internet_names = &Apache::lonnet::get_internet_names($currenthostid);
                   if (ref($internet_names) eq 'ARRAY') {
                       if (grep(/^\Q$clientintdom\E$/,@{$internet_names})) {
                           $clientsameinst = 1;
                       }
                   }
               }
               $clientremoteok = 0;
               unless ($clientsameinst) {
                   $clientremoteok = 1;
                   my $defdom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
                   %clientprohibited = &get_prohibited($defdom);
                   if ($clientintdom) {
                       my $remsessconf = &get_usersession_config($defdom,'remotesession');
                       if (ref($remsessconf) eq 'HASH') {
                           if (ref($remsessconf->{'remote'}) eq 'HASH') {
                               if (ref($remsessconf->{'remote'}->{'excludedomain'}) eq 'ARRAY') {
                                   if (grep(/^\Q$clientintdom\E$/,@{$remsessconf->{'remote'}->{'excludedomain'}})) {
                                       $clientremoteok = 0;
                                   }
                               }
                               if (ref($remsessconf->{'remote'}->{'includedomain'}) eq 'ARRAY') {
                                   if (grep(/^\Q$clientintdom\E$/,@{$remsessconf->{'remote'}->{'includedomain'}})) {
                                       $clientremoteok = 1;
                                   } else {
                                       $clientremoteok = 0;
                                   }
                               }
                           }
                       }
                   }
               }
     while(($user_input = get_request) && $keep_going) {      while(($user_input = get_request) && $keep_going) {
  alarm(120);   alarm(120);
  Debug("Main: Got $user_input\n");   Debug("Main: Got $user_input\n");
Line 6759  sub make_new_child { Line 7267  sub make_new_child {
     &logthis("<font color='blue'>WARNING: "      &logthis("<font color='blue'>WARNING: "
      ."Rejected client $clientip, closing connection</font>");       ."Rejected client $clientip, closing connection</font>");
  }   }
     }                  }
           
 # =============================================================================  # =============================================================================
           
Line 6983  sub validate_user { Line 7491  sub validate_user {
     }       } 
     if ($howpwd ne 'nouser') {      if ($howpwd ne 'nouser') {
  if($howpwd eq "internal") { # Encrypted is in local password file.   if($howpwd eq "internal") { # Encrypted is in local password file.
     $validated = (crypt($password, $contentpwd) eq $contentpwd);              if (length($contentpwd) == 13) {
                   $validated = (crypt($password,$contentpwd) eq $contentpwd);
                   if ($validated) {
                       my $ncpass = &hash_passwd($domain,$password);
                       if (&rewrite_password_file($domain,$user,"$howpwd:$ncpass")) {
                           &update_passwd_history($user,$domain,$howpwd,'conversion');
                           &logthis("Validated password hashed with bcrypt for $user:$domain");
                       }
                   }
               } else {
                   $validated = &check_internal_passwd($password,$contentpwd,$domain);
               }
  }   }
  elsif ($howpwd eq "unix") { # User is a normal unix user.   elsif ($howpwd eq "unix") { # User is a normal unix user.
     $contentpwd = (getpwnam($user))[1];      $contentpwd = (getpwnam($user))[1];
Line 7051  sub validate_user { Line 7570  sub validate_user {
     return $validated;      return $validated;
 }  }
   
   sub check_internal_passwd {
       my ($plainpass,$stored,$domain) = @_;
       my (undef,$method,@rest) = split(/!/,$stored);
       if ($method eq "bcrypt") {
           my $result = &hash_passwd($domain,$plainpass,@rest);
           if ($result ne $stored) {
               return 0;
           }
           # Upgrade to a larger number of rounds if necessary
           my $defaultcost;
           my %domconfig =
               &Apache::lonnet::get_dom('configuration',['password'],$domain);
           if (ref($domconfig{'password'}) eq 'HASH') {
               $defaultcost = $domconfig{'password'}{'cost'};
           }
           if (($defaultcost eq '') || ($defaultcost =~ /D/)) {
               $defaultcost = 10;
           }
           return 1 unless($rest[0]<$defaultcost);
       }
       return 0;
   }
   
   sub get_last_authchg {
       my ($domain,$user) = @_;
       my $lastmod;
       my $logname = &propath($domain,$user).'/passwd.log';
       if (-e "$logname") {
           $lastmod = (stat("$logname"))[9];
       }
       return $lastmod;
   }
   
 sub krb4_authen {  sub krb4_authen {
     my ($password,$null,$user,$contentpwd) = @_;      my ($password,$null,$user,$contentpwd) = @_;
     my $validated = 0;      my $validated = 0;
Line 7366  sub change_unix_password { Line 7918  sub change_unix_password {
   
   
 sub make_passwd_file {  sub make_passwd_file {
     my ($uname,$udom,$umode,$npass,$passfilename)=@_;      my ($uname,$udom,$umode,$npass,$passfilename,$action)=@_;
     my $result="ok";      my $result="ok";
     if ($umode eq 'krb4' or $umode eq 'krb5') {      if ($umode eq 'krb4' or $umode eq 'krb5') {
  {   {
     my $pf = IO::File->new(">$passfilename");      my $pf = IO::File->new(">$passfilename");
     if ($pf) {      if ($pf) {
  print $pf "$umode:$npass\n";   print $pf "$umode:$npass\n";
                   &update_passwd_history($uname,$udom,$umode,$action);
     } else {      } else {
  $result = "pass_file_failed_error";   $result = "pass_file_failed_error";
     }      }
  }   }
     } elsif ($umode eq 'internal') {      } elsif ($umode eq 'internal') {
  my $salt=time;          my $ncpass = &hash_passwd($udom,$npass);
  $salt=substr($salt,6,2);  
  my $ncpass=crypt($npass,$salt);  
  {   {
     &Debug("Creating internal auth");      &Debug("Creating internal auth");
     my $pf = IO::File->new(">$passfilename");      my $pf = IO::File->new(">$passfilename");
     if($pf) {      if($pf) {
  print $pf "internal:$ncpass\n";    print $pf "internal:$ncpass\n";
                   &update_passwd_history($uname,$udom,$umode,$action); 
     } else {      } else {
  $result = "pass_file_failed_error";   $result = "pass_file_failed_error";
     }      }
Line 7395  sub make_passwd_file { Line 7947  sub make_passwd_file {
     my $pf = IO::File->new(">$passfilename");      my $pf = IO::File->new(">$passfilename");
     if($pf) {      if($pf) {
  print $pf "localauth:$npass\n";   print $pf "localauth:$npass\n";
                   &update_passwd_history($uname,$udom,$umode,$action);
     } else {      } else {
  $result = "pass_file_failed_error";   $result = "pass_file_failed_error";
     }      }
Line 7457  sub get_usersession_config { Line 8010  sub get_usersession_config {
         return $usersessionconf;          return $usersessionconf;
     } else {      } else {
         my %domconfig = &Apache::lonnet::get_dom('configuration',['usersessions'],$dom);          my %domconfig = &Apache::lonnet::get_dom('configuration',['usersessions'],$dom);
         if (ref($domconfig{'usersessions'}) eq 'HASH') {          &Apache::lonnet::do_cache_new($name,$dom,$domconfig{'usersessions'},3600);
             &Apache::lonnet::do_cache_new($name,$dom,$domconfig{'usersessions'},3600);          return $domconfig{'usersessions'};
             return $domconfig{'usersessions'};  
         }  
     }      }
     return;      return;
 }  }
   
   sub get_prohibited {
       my ($dom) = @_;
       my $name = 'trust';
       my ($trustconfig,$cached)=&Apache::lonnet::is_cached_new($name,$dom);
       unless (defined($cached)) {
           my %domconfig = &Apache::lonnet::get_dom('configuration',['trust'],$dom);
           &Apache::lonnet::do_cache_new($name,$dom,$domconfig{'trust'},3600);
           $trustconfig = $domconfig{'trust'};
       }
       my %prohibited;
       if (ref($trustconfig)) {
           foreach my $prefix (keys(%{$trustconfig})) {
               if (ref($trustconfig->{$prefix}) eq 'HASH') {
                   my $reject;
                   if (ref($trustconfig->{$prefix}->{'exc'}) eq 'ARRAY') {
                       if (grep(/^\Q$clientintdom\E$/,@{$trustconfig->{$prefix}->{'exc'}})) {
                           $reject = 1;
                       }
                   }
                   if (ref($trustconfig->{$prefix}->{'inc'}) eq 'ARRAY') {
                       if (grep(/^\Q$clientintdom\E$/,@{$trustconfig->{$prefix}->{'inc'}})) {
                           $reject = 0;
                       } else {
                           $reject = 1;
                       }
                   }
                   if ($reject) {
                       $prohibited{$prefix} = 1;
                   }
               }
           }
       }
       return %prohibited;
   }
   
 sub distro_and_arch {  sub distro_and_arch {
     return $dist.':'.$arch;      return $dist.':'.$arch;
Line 7651  Allow for a password to be set. Line 8234  Allow for a password to be set.
   
 Make a user.  Make a user.
   
 =item passwd  =item changeuserauth
   
 Allow for authentication mechanism and password to be changed.  Allow for authentication mechanism and password to be changed.
   
Line 7740  for each student, defined perhaps by the Line 8323  for each student, defined perhaps by the
 Returns usernames corresponding to IDs.  (These "IDs" are unique identifiers  Returns usernames corresponding to IDs.  (These "IDs" are unique identifiers
 for each student, defined perhaps by the institutional Registrar.)  for each student, defined perhaps by the institutional Registrar.)
   
   =item iddel
   
   Deletes one or more ids in a domain's id database.
   
 =item tmpput  =item tmpput
   
 Accept and store information in temporary space.  Accept and store information in temporary space.
Removed from v.1.510  
changed lines
  Added in v.1.525

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