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Diff for /loncom/lonnet/perl/lonnet.pm between versions 1.829 and 1.839

version 1.829, 2007/01/18 21:31:40 version 1.839, 2007/03/02 23:43:24
Line 35  use HTTP::Headers; Line 35  use HTTP::Headers;
 use HTTP::Date;  use HTTP::Date;
 # use Date::Parse;  # use Date::Parse;
 use vars   use vars 
 qw(%perlvar %hostname %badServerCache %iphost %spareid %hostdom   qw(%perlvar %badServerCache %iphost %spareid %hostdom 
    %libserv %pr %prp $memcache %packagetab      %libserv %pr %prp $memcache %packagetab 
    %courselogs %accesshash %userrolehash %domainrolehash $processmarker $dumpcount      %courselogs %accesshash %userrolehash %domainrolehash $processmarker $dumpcount 
    %coursedombuf %coursenumbuf %coursehombuf %coursedescrbuf %courseinstcodebuf %courseownerbuf %coursetypebuf     %coursedombuf %coursenumbuf %coursehombuf %coursedescrbuf %courseinstcodebuf %courseownerbuf %coursetypebuf
Line 149  sub logperm { Line 149  sub logperm {
 # -------------------------------------------------- Non-critical communication  # -------------------------------------------------- Non-critical communication
 sub subreply {  sub subreply {
     my ($cmd,$server)=@_;      my ($cmd,$server)=@_;
     my $peerfile="$perlvar{'lonSockDir'}/".$hostname{$server};      my $peerfile="$perlvar{'lonSockDir'}/".&hostname($server);
     #      #
     #  With loncnew process trimming, there's a timing hole between lonc server      #  With loncnew process trimming, there's a timing hole between lonc server
     #  process exit and the master server picking up the listen on the AF_UNIX      #  process exit and the master server picking up the listen on the AF_UNIX
Line 189  sub subreply { Line 189  sub subreply {
   
 sub reply {  sub reply {
     my ($cmd,$server)=@_;      my ($cmd,$server)=@_;
     unless (defined($hostname{$server})) { return 'no_such_host'; }      unless (defined(&hostname($server))) { return 'no_such_host'; }
     my $answer=subreply($cmd,$server);      my $answer=subreply($cmd,$server);
     if (($answer=~/^refused/) || ($answer=~/^rejected/)) {      if (($answer=~/^refused/) || ($answer=~/^rejected/)) {
        &logthis("<font color=\"blue\">WARNING:".         &logthis("<font color=\"blue\">WARNING:".
Line 201  sub reply { Line 201  sub reply {
 # ----------------------------------------------------------- Send USR1 to lonc  # ----------------------------------------------------------- Send USR1 to lonc
   
 sub reconlonc {  sub reconlonc {
     my $peerfile=shift;      &logthis("Trying to reconnect lonc");
     &logthis("Trying to reconnect for $peerfile");  
     my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";      my $loncfile="$perlvar{'lonDaemons'}/logs/lonc.pid";
     if (open(my $fh,"<$loncfile")) {      if (open(my $fh,"<$loncfile")) {
  my $loncpid=<$fh>;   my $loncpid=<$fh>;
Line 211  sub reconlonc { Line 210  sub reconlonc {
     &logthis("lonc at pid $loncpid responding, sending USR1");      &logthis("lonc at pid $loncpid responding, sending USR1");
             kill USR1 => $loncpid;              kill USR1 => $loncpid;
             sleep 1;              sleep 1;
             if (-e "$peerfile") { return; }           } else {
             &logthis("$peerfile still not there, give it another try");  
             sleep 5;  
             if (-e "$peerfile") { return; }  
             &logthis(  
   "<font color=\"blue\">WARNING: $peerfile still not there, giving up</font>");  
         } else {  
     &logthis(      &logthis(
                "<font color=\"blue\">WARNING:".                 "<font color=\"blue\">WARNING:".
                " lonc at pid $loncpid not responding, giving up</font>");                 " lonc at pid $loncpid not responding, giving up</font>");
         }          }
     } else {      } else {
      &logthis('<font color="blue">WARNING: lonc not running, giving up</font>');   &logthis('<font color="blue">WARNING: lonc not running, giving up</font>');
     }      }
 }  }
   
Line 231  sub reconlonc { Line 224  sub reconlonc {
   
 sub critical {  sub critical {
     my ($cmd,$server)=@_;      my ($cmd,$server)=@_;
     unless ($hostname{$server}) {      unless (&hostname($server)) {
         &logthis("<font color=\"blue\">WARNING:".          &logthis("<font color=\"blue\">WARNING:".
                " Critical message to unknown server ($server)</font>");                 " Critical message to unknown server ($server)</font>");
         return 'no_such_host';          return 'no_such_host';
Line 367  sub transfer_profile_to_env { Line 360  sub transfer_profile_to_env {
     }      }
 }  }
   
   sub timed_flock {
       my ($file,$lock_type) = @_;
       my $failed=0;
       eval {
    local $SIG{__DIE__}='DEFAULT';
    local $SIG{ALRM}=sub {
       $failed=1;
       die("failed lock");
    };
    alarm(13);
    flock($file,$lock_type);
    alarm(0);
       };
       if ($failed) {
    return undef;
       } else {
    return 1;
       }
   }
   
 # ---------------------------------------------------------- Append Environment  # ---------------------------------------------------------- Append Environment
   
 sub appenv {  sub appenv {
Line 381  sub appenv { Line 394  sub appenv {
             $env{$key}=$newenv{$key};              $env{$key}=$newenv{$key};
         }          }
     }      }
     if (tie(my %disk_env,'GDBM_File',$env{'user.environment'},&GDBM_WRITER(),      open(my $env_file,$env{'user.environment'});
     0640)) {      if (&timed_flock($env_file,LOCK_EX)
    &&
    tie(my %disk_env,'GDBM_File',$env{'user.environment'},
       (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
  while (my ($key,$value) = each(%newenv)) {   while (my ($key,$value) = each(%newenv)) {
     $disk_env{$key} = $value;      $disk_env{$key} = $value;
  }   }
Line 399  sub delenv { Line 415  sub delenv {
                 "Attempt to delete from environment ".$delthis);                  "Attempt to delete from environment ".$delthis);
         return 'error';          return 'error';
     }      }
     if (tie(my %disk_env,'GDBM_File',$env{'user.environment'},&GDBM_WRITER(),      open(my $env_file,$env{'user.environment'});
     0640)) {      if (&timed_flock($env_file,LOCK_EX)
    &&
    tie(my %disk_env,'GDBM_File',$env{'user.environment'},
       (&GDBM_WRITER()|&GDBM_NOLOCK()),0640)) {
  foreach my $key (keys(%disk_env)) {   foreach my $key (keys(%disk_env)) {
     if ($key=~/^$delthis/) {       if ($key=~/^$delthis/) { 
                 delete($env{$key});                  delete($env{$key});
Line 498  sub spareserver { Line 517  sub spareserver {
     }      }
   
     if (!$want_server_name) {      if (!$want_server_name) {
  $spare_server="http://$hostname{$spare_server}";   $spare_server="http://".&hostname($spare_server);
     }      }
     return $spare_server;      return $spare_server;
 }  }
Line 589  sub authenticate { Line 608  sub authenticate {
     my ($uname,$upass,$udom)=@_;      my ($uname,$upass,$udom)=@_;
     $upass=&escape($upass);      $upass=&escape($upass);
     $uname= &LONCAPA::clean_username($uname);      $uname= &LONCAPA::clean_username($uname);
     my $uhome=&homeserver($uname,$udom);      my $uhome=&homeserver($uname,$udom,1);
     if (!$uhome) {      if ((!$uhome) || ($uhome eq 'no_host')) {
  &logthis("User $uname at $udom is unknown in authenticate");  # Maybe the machine was offline and only re-appeared again recently?
           &reconlonc();
   # One more
    my $uhome=&homeserver($uname,$udom,1);
    if ((!$uhome) || ($uhome eq 'no_host')) {
       &logthis("User $uname at $udom is unknown in authenticate");
    }
  return 'no_host';   return 'no_host';
     }      }
     my $answer=reply("encrypt:auth:$udom:$uname:$upass",$uhome);      my $answer=reply("encrypt:auth:$udom:$uname:$upass",$uhome);
Line 621  sub homeserver { Line 646  sub homeserver {
  exists($badServerCache{$tryserver}));   exists($badServerCache{$tryserver}));
  if ($hostdom{$tryserver} eq $udom) {   if ($hostdom{$tryserver} eq $udom) {
            my $answer=reply("home:$udom:$uname",$tryserver);             my $answer=reply("home:$udom:$uname",$tryserver);
            if ($answer eq 'found') {              if ($answer eq 'found') {
                  delete($badServerCache{$tryserver}); 
        return $homecache{$index}=$tryserver;         return $homecache{$index}=$tryserver;
            } elsif ($answer eq 'no_host') {             } elsif ($answer eq 'no_host') {
        $badServerCache{$tryserver}=1;         $badServerCache{$tryserver}=1;
Line 740  sub put_dom { Line 766  sub put_dom {
     }      }
 }  }
   
   sub retrieve_inst_usertypes {
       my ($udom) = @_;
       my (%returnhash,@order);
       if (exists($domain_primary{$udom})) {
           my $uhome=$domain_primary{$udom};
           my $rep=&reply("inst_usertypes:$udom",$uhome);
           my ($hashitems,$orderitems) = split(/:/,$rep); 
           my @pairs=split(/\&/,$hashitems);
           foreach my $item (@pairs) {
               my ($key,$value)=split(/=/,$item,2);
               $key = &unescape($key);
               next if ($key =~ /^error: 2 /);
               $returnhash{$key}=&thaw_unescape($value);
           }
           my @esc_order = split(/\&/,$orderitems);
           foreach my $item (@esc_order) {
               push(@order,&unescape($item));
           }
       } else {
           &logthis("get_dom failed - no primary domain server for $udom");
       }
       return (\%returnhash,\@order);
   }
   
 # --------------------------------------------------- Assign a key to a student  # --------------------------------------------------- Assign a key to a student
   
 sub assign_access_key {  sub assign_access_key {
Line 1425  sub store_edited_file { Line 1475  sub store_edited_file {
 }  }
   
 sub clean_filename {  sub clean_filename {
     my ($fname)=@_;      my ($fname,$args)=@_;
 # Replace Windows backslashes by forward slashes  # Replace Windows backslashes by forward slashes
     $fname=~s/\\/\//g;      $fname=~s/\\/\//g;
 # Get rid of everything but the actual filename      if (!$args->{'keep_path'}) {
     $fname=~s/^.*\/([^\/]+)$/$1/;          # Get rid of everything but the actual filename
    $fname=~s/^.*\/([^\/]+)$/$1/;
       }
 # Replace spaces by underscores  # Replace spaces by underscores
     $fname=~s/\s+/\_/g;      $fname=~s/\s+/\_/g;
 # Replace all other weird characters by nothing  # Replace all other weird characters by nothing
     $fname=~s/[^\w\.\-]//g;      $fname=~s{[^/\w\.\-]}{}g;
 # Replace all .\d. sequences with _\d. so they no longer look like version  # Replace all .\d. sequences with _\d. so they no longer look like version
 # numbers  # numbers
     $fname=~s/\.(\d+)(?=\.)/_$1/g;      $fname=~s/\.(\d+)(?=\.)/_$1/g;
Line 1999  sub get_course_adv_roles { Line 2051  sub get_course_adv_roles {
 }  }
   
 sub get_my_roles {  sub get_my_roles {
     my ($uname,$udom)=@_;      my ($uname,$udom,$types,$roles,$roledoms)=@_;
     unless (defined($uname)) { $uname=$env{'user.name'}; }      unless (defined($uname)) { $uname=$env{'user.name'}; }
     unless (defined($udom)) { $udom=$env{'user.domain'}; }      unless (defined($udom)) { $udom=$env{'user.domain'}; }
     my %dumphash=      my %dumphash=
Line 2009  sub get_my_roles { Line 2061  sub get_my_roles {
     foreach my $entry (keys(%dumphash)) {      foreach my $entry (keys(%dumphash)) {
  my ($tend,$tstart)=split(/\:/,$dumphash{$entry});   my ($tend,$tstart)=split(/\:/,$dumphash{$entry});
         if (($tstart) && ($tstart<0)) { next; }          if (($tstart) && ($tstart<0)) { next; }
         if (($tend) && ($tend<$now)) { next; }          my $status = 'active';
         if (($tstart) && ($now<$tstart)) { next; }          if (($tend) && ($tend<$now)) {
               $status = 'previous';
           } 
           if (($tstart) && ($now<$tstart)) {
               $status = 'future';
           }
           if (ref($types) eq 'ARRAY') {
               if (!grep(/^\Q$status\E$/,@{$types})) {
                   next;
               } 
           } else {
               if ($status ne 'active') {
                   next;
               }
           }
         my ($role,$username,$domain,$section)=split(/\:/,$entry);          my ($role,$username,$domain,$section)=split(/\:/,$entry);
           if (ref($roledoms) eq 'ARRAY') {
               if (!grep(/^\Q$domain\E$/,@{$roledoms})) {
                   next;
               }
           }
           if (ref($roles) eq 'ARRAY') {
               if (!grep(/^\Q$role\E$/,@{$roles})) {
                   next;
               }
           } 
  $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;   $returnhash{$username.':'.$domain.':'.$role}=$tstart.':'.$tend;
      }      }
     return %returnhash;      return %returnhash;
 }  }
   
Line 2219  sub checkin { Line 2295  sub checkin {
     my $now=time;      my $now=time;
     my ($ta,$tb,$lonhost)=split(/\*/,$token);      my ($ta,$tb,$lonhost)=split(/\*/,$token);
     $lonhost=~tr/A-Z/a-z/;      $lonhost=~tr/A-Z/a-z/;
     my $dtoken=$ta.'_'.$hostname{$lonhost}.'_'.$tb;      my $dtoken=$ta.'_'.&hostname($lonhost).'_'.$tb;
     $dtoken=~s/\W/\_/g;      $dtoken=~s/\W/\_/g;
     my ($dummy,$tuname,$tudom,$tcrsid,$symb,$chtim,$rmaddr)=      my ($dummy,$tuname,$tudom,$tcrsid,$symb,$chtim,$rmaddr)=
                  split(/\&/,&unescape(&reply('tmpget:'.$dtoken,$lonhost)));                   split(/\&/,&unescape(&reply('tmpget:'.$dtoken,$lonhost)));
Line 2888  sub custom_roleprivs { Line 2964  sub custom_roleprivs {
     my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;      my ($allroles,$trole,$tdomain,$trest,$spec,$area) = @_;
     my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);      my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$trole);
     my $homsvr=homeserver($rauthor,$rdomain);      my $homsvr=homeserver($rauthor,$rdomain);
     if ($hostname{$homsvr} ne '') {      if (&hostname($homsvr) ne '') {
         my ($rdummy,$roledef)=          my ($rdummy,$roledef)=
             &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);              &get('roles',["rolesdef_$rrole"],$rdomain,$rauthor);
         if (($rdummy ne 'con_lost') && ($roledef ne '')) {          if (($rdummy ne 'con_lost') && ($roledef ne '')) {
Line 4119  sub log_query { Line 4195  sub log_query {
     my ($uname,$udom,$query,%filters)=@_;      my ($uname,$udom,$query,%filters)=@_;
     my $uhome=&homeserver($uname,$udom);      my $uhome=&homeserver($uname,$udom);
     if ($uhome eq 'no_host') { return 'error: no_host'; }      if ($uhome eq 'no_host') { return 'error: no_host'; }
     my $uhost=$hostname{$uhome};      my $uhost=&hostname($uhome);
     my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters)));      my $command=&escape(join(':',map{$_.'='.$filters{$_}} keys(%filters)));
     my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,      my $queryid=&reply("querysend:".$query.':'.$udom.':'.$uname.':'.$command,
                        $uhome);                         $uhome);
Line 4151  sub fetch_enrollment_query { Line 4227  sub fetch_enrollment_query {
     } else {      } else {
         $homeserver = &homeserver($cnum,$dom);          $homeserver = &homeserver($cnum,$dom);
     }      }
     my $host=$hostname{$homeserver};      my $host=&hostname($homeserver);
     my $cmd = '';      my $cmd = '';
     foreach my $affiliate (keys %{$affiliatesref}) {      foreach my $affiliate (keys %{$affiliatesref}) {
         $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';          $cmd .= $affiliate.'='.join(",",@{$$affiliatesref{$affiliate}}).'%%';
Line 4342  sub auto_photochoice { Line 4418  sub auto_photochoice {
 sub auto_photoupdate {  sub auto_photoupdate {
     my ($affiliatesref,$dom,$cnum,$photo) = @_;      my ($affiliatesref,$dom,$cnum,$photo) = @_;
     my $homeserver = &homeserver($cnum,$dom);      my $homeserver = &homeserver($cnum,$dom);
     my $host=$hostname{$homeserver};      my $host=&hostname($homeserver);
     my $cmd = '';      my $cmd = '';
     my $maxtries = 1;      my $maxtries = 1;
     foreach my $affiliate (keys(%{$affiliatesref})) {      foreach my $affiliate (keys(%{$affiliatesref})) {
Line 5082  sub is_locked { Line 5158  sub is_locked {
   
 sub declutter_portfile {  sub declutter_portfile {
     my ($file) = @_;      my ($file) = @_;
     &logthis("got $file");      $file =~ s{^(/portfolio/|portfolio/)}{/};
     $file =~ s-^(/portfolio/|portfolio/)-/-;  
     &logthis("ret $file");  
     return $file;      return $file;
 }  }
   
Line 7035  sub setup_random_from_rndseed { Line 7109  sub setup_random_from_rndseed {
 }  }
   
 sub latest_receipt_algorithm_id {  sub latest_receipt_algorithm_id {
     return 'receipt2';      return 'receipt3';
 }  }
   
 sub recunique {  sub recunique {
     my $fucourseid=shift;      my $fucourseid=shift;
     my $unique;      my $unique;
     if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {      if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
    $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
  $unique=$env{"course.$fucourseid.internal.encseed"};   $unique=$env{"course.$fucourseid.internal.encseed"};
     } else {      } else {
  $unique=$perlvar{'lonReceipt'};   $unique=$perlvar{'lonReceipt'};
Line 7052  sub recunique { Line 7127  sub recunique {
 sub recprefix {  sub recprefix {
     my $fucourseid=shift;      my $fucourseid=shift;
     my $prefix;      my $prefix;
     if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {      if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2'||
    $env{"course.$fucourseid.receiptalg"} eq 'receipt3' ) {
  $prefix=$env{"course.$fucourseid.internal.encpref"};   $prefix=$env{"course.$fucourseid.internal.encpref"};
     } else {      } else {
  $prefix=$perlvar{'lonHostID'};   $prefix=$perlvar{'lonHostID'};
Line 7062  sub recprefix { Line 7138  sub recprefix {
   
 sub ireceipt {  sub ireceipt {
     my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;      my ($funame,$fudom,$fucourseid,$fusymb,$part)=@_;
   
       my $return =&recprefix($fucourseid).'-';
   
       if ($env{"course.$fucourseid.receiptalg"} eq 'receipt3' ||
    $env{'request.state'} eq 'construct') {
    $return .= (&digest("$funame,$fudom,$fucourseid,$fusymb,$part")%10000);
    return $return;
       }
   
     my $cuname=unpack("%32C*",$funame);      my $cuname=unpack("%32C*",$funame);
     my $cudom=unpack("%32C*",$fudom);      my $cudom=unpack("%32C*",$fudom);
     my $cucourseid=unpack("%32C*",$fucourseid);      my $cucourseid=unpack("%32C*",$fucourseid);
     my $cusymb=unpack("%32C*",$fusymb);      my $cusymb=unpack("%32C*",$fusymb);
     my $cunique=&recunique($fucourseid);      my $cunique=&recunique($fucourseid);
     my $cpart=unpack("%32S*",$part);      my $cpart=unpack("%32S*",$part);
     my $return =&recprefix($fucourseid).'-';      if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2') {
     if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||  
  $env{'request.state'} eq 'construct') {  
  #&logthis("doing receipt2  using parts $cpart, uname $cuname and udom $cudom gets  ".($cpart%$cuname)." and ".($cpart%$cudom));   #&logthis("doing receipt2  using parts $cpart, uname $cuname and udom $cudom gets  ".($cpart%$cuname)." and ".($cpart%$cudom));
                 
  $return.= ($cunique%$cuname+   $return.= ($cunique%$cuname+
Line 7202  sub repcopy_userfile { Line 7286  sub repcopy_userfile {
     if (-e $transferfile) { return 'ok'; }      if (-e $transferfile) { return 'ok'; }
     my $request;      my $request;
     $uri=~s/^\///;      $uri=~s/^\///;
     $request=new HTTP::Request('GET','http://'.$hostname{&homeserver($cnum,$cdom)}.'/raw/'.$uri);      $request=new HTTP::Request('GET','http://'.&hostname(&homeserver($cnum,$cdom)).'/raw/'.$uri);
     my $response=$ua->request($request,$transferfile);      my $response=$ua->request($request,$transferfile);
 # did it work?  # did it work?
     if ($response->is_error()) {      if ($response->is_error()) {
Line 7225  sub tokenwrapper { Line 7309  sub tokenwrapper {
     if ($udom && $uname && $file) {      if ($udom && $uname && $file) {
  $file=~s|(\?\.*)*$||;   $file=~s|(\?\.*)*$||;
         &appenv("userfile.$udom/$uname/$file" => $env{'request.course.id'});          &appenv("userfile.$udom/$uname/$file" => $env{'request.course.id'});
         return 'http://'.$hostname{ &homeserver($uname,$udom)}.'/'.$uri.          return 'http://'.&hostname(&homeserver($uname,$udom)).'/'.$uri.
                (($uri=~/\?/)?'&':'?').'token='.$token.                 (($uri=~/\?/)?'&':'?').'token='.$token.
                                '&tokenissued='.$perlvar{'lonHostID'};                                 '&tokenissued='.$perlvar{'lonHostID'};
     } else {      } else {
Line 7240  sub tokenwrapper { Line 7324  sub tokenwrapper {
 sub getuploaded {  sub getuploaded {
     my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;      my ($reqtype,$uri,$cdom,$cnum,$info,$rtncode) = @_;
     $uri=~s/^\///;      $uri=~s/^\///;
     $uri = 'http://'.$hostname{ &homeserver($cnum,$cdom)}.'/raw/'.$uri;      $uri = 'http://'.&hostname(&homeserver($cnum,$cdom)).'/raw/'.$uri;
     my $ua=new LWP::UserAgent;      my $ua=new LWP::UserAgent;
     my $request=new HTTP::Request($reqtype,$uri);      my $request=new HTTP::Request($reqtype,$uri);
     my $response=$ua->request($request);      my $response=$ua->request($request);
Line 7330  sub hreflocation { Line 7414  sub hreflocation {
 }  }
   
 sub current_machine_domains {  sub current_machine_domains {
     my $hostname=$hostname{$perlvar{'lonHostID'}};      my $hostname=&hostname($perlvar{'lonHostID'});
     my @domains;      my @domains;
       my %hostname = &all_hostnames();
     while( my($id, $name) = each(%hostname)) {      while( my($id, $name) = each(%hostname)) {
 # &logthis("-$id-$name-$hostname-");  # &logthis("-$id-$name-$hostname-");
  if ($hostname eq $name) {   if ($hostname eq $name) {
Line 7342  sub current_machine_domains { Line 7427  sub current_machine_domains {
 }  }
   
 sub current_machine_ids {  sub current_machine_ids {
     my $hostname=$hostname{$perlvar{'lonHostID'}};      my $hostname=&hostname($perlvar{'lonHostID'});
     my @ids;      my @ids;
       my %hostname = &all_hostnames();
     while( my($id, $name) = each(%hostname)) {      while( my($id, $name) = each(%hostname)) {
 # &logthis("-$id-$name-$hostname-");  # &logthis("-$id-$name-$hostname-");
  if ($hostname eq $name) {   if ($hostname eq $name) {
Line 7521  BEGIN { Line 7607  BEGIN {
   
 # ------------------------------------------------------------- Read hosts file  # ------------------------------------------------------------- Read hosts file
 {  {
       my %hostname;
     open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");      open(my $config,"<$perlvar{'lonTabDir'}/hosts.tab");
   
     while (my $configline=<$config>) {      while (my $configline=<$config>) {
Line 7537  BEGIN { Line 7624  BEGIN {
     close($config);      close($config);
     # FIXME: dev server don't want this, production servers _do_ want this      # FIXME: dev server don't want this, production servers _do_ want this
     #&get_iphost();      #&get_iphost();
   
       sub hostname {
    my ($lonid) = @_;
    return $hostname{$lonid};
       }
       sub all_hostnames {
    return %hostname;
       }
   }
   
   sub get_hosts_from_ip {
       my ($ip) = @_;
       my %iphosts = &get_iphost();
       if (ref($iphosts{$ip})) {
    return @{$iphosts{$ip}};
       }
       return;
 }  }
   
 sub get_iphost {  sub get_iphost {
     if (%iphost) { return %iphost; }      if (%iphost) { return %iphost; }
     my %name_to_ip;      my %name_to_ip;
       my %hostname = &all_hostnames();
     foreach my $id (keys(%hostname)) {      foreach my $id (keys(%hostname)) {
  my $name=$hostname{$id};   my $name=$hostname{$id};
  my $ip;   my $ip;
Line 7919  and course level Line 8024  and course level
 plaintext($short) : return value in %prp hash (rolesplain.tab); plain text  plaintext($short) : return value in %prp hash (rolesplain.tab); plain text
 explanation of a user role term  explanation of a user role term
   
   =item *
   
   get_my_roles($uname,$udom,$types,$roles,$roledoms) : All arguments are
   optional.  Returns a hash of a user's roles, with keys set to
   colon-sparated $uname,$udom,and $role, and value set to
   colon-separated start and end times for the role. If no username and
   domain are specified, will default to current user/domain. Types,
   roles, and roledoms are references to arrays, of role statuses
   (active, future or previous), roles (e.g., cc,in, st etc.) and domains
   of the roles which can be used to restrict the list if roles
   reported. If no array ref is provided for types, will default to
   return only active roles.
   
 =back  =back
   
 =head2 User Modification  =head2 User Modification
Removed from v.1.829  
changed lines
  Added in v.1.839

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