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Diff for /loncom/lonnet/perl/lonnet.pm between versions 1.824.2.3 and 1.838

version 1.824.2.3, 2007/03/17 04:13:06 version 1.838, 2007/03/02 23:17:40
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 524  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 $spare_server;
 }  }
Line 615  sub authenticate { Line 608  sub authenticate {
     my ($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",$uhome);
Line 647  sub homeserver { Line 646  sub homeserver {
  exists($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 766  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 990  my %remembered; Line 1014  my %remembered;
 my %accessed;  my %accessed;
 my $kicks=0;  my $kicks=0;
 my $hits=0;  my $hits=0;
 sub make_key {  
     my ($name,$id) = @_;  
     if (length($id) > 200) { $id=length($id).':'.&Digest::MD5::md5_hex($id); }  
     return &escape($name.':'.$id);  
 }  
   
 sub devalidate_cache_new {  sub devalidate_cache_new {
     my ($name,$id,$debug) = @_;      my ($name,$id,$debug) = @_;
     if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }      if ($debug) { &Apache::lonnet::logthis("deleting $name:$id"); }
     $id=&make_key($name,$id);      $id=&escape($name.':'.$id);
     $memcache->delete($id);      $memcache->delete($id);
     delete($remembered{$id});      delete($remembered{$id});
     delete($accessed{$id});      delete($accessed{$id});
Line 1007  sub devalidate_cache_new { Line 1025  sub devalidate_cache_new {
   
 sub is_cached_new {  sub is_cached_new {
     my ($name,$id,$debug) = @_;      my ($name,$id,$debug) = @_;
     $id=&make_key($name,$id);      $id=&escape($name.':'.$id);
     if (exists($remembered{$id})) {      if (exists($remembered{$id})) {
  if ($debug) { &Apache::lonnet::logthis("Earyl return $id of $remembered{$id} "); }   if ($debug) { &Apache::lonnet::logthis("Earyl return $id of $remembered{$id} "); }
  $accessed{$id}=[&gettimeofday()];   $accessed{$id}=[&gettimeofday()];
Line 1030  sub is_cached_new { Line 1048  sub is_cached_new {
   
 sub do_cache_new {  sub do_cache_new {
     my ($name,$id,$value,$time,$debug) = @_;      my ($name,$id,$value,$time,$debug) = @_;
     $id=&make_key($name,$id);      $id=&escape($name.':'.$id);
     my $setvalue=$value;      my $setvalue=$value;
     if (!defined($setvalue)) {      if (!defined($setvalue)) {
  $setvalue='__undef__';   $setvalue='__undef__';
Line 1208  sub repcopy { Line 1226  sub repcopy {
     }      }
     $filename=~s/[\n\r]//g;      $filename=~s/[\n\r]//g;
     my $transname="$filename.in.transfer";      my $transname="$filename.in.transfer";
   # FIXME: this should flock
     if ((-e $filename) || (-e $transname)) { return 'ok'; }      if ((-e $filename) || (-e $transname)) { return 'ok'; }
     my $remoteurl=subscribe($filename);      my $remoteurl=subscribe($filename);
     if ($remoteurl =~ /^con_lost by/) {      if ($remoteurl =~ /^con_lost by/) {
Line 1456  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 2030  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 2040  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 2250  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,$lonhost)));
Line 2919  sub custom_roleprivs { Line 2964  sub custom_roleprivs {
     my ($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 4150  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 4182  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{$affiliate}}).'%%';
Line 4373  sub auto_photochoice { Line 4418  sub auto_photochoice {
 sub auto_photoupdate {  sub auto_photoupdate {
     my ($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 5113  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 5348  sub modify_access_controls { Line 5391  sub modify_access_controls {
     return ($outcome,$deloutcome,\%new_values,\%translation);      return ($outcome,$deloutcome,\%new_values,\%translation);
 }  }
   
   sub make_public_indefinitely {
       my ($requrl) = @_;
       my $now = time;
       my $action = 'activate';
       my $aclnum = 0;
       if (&is_portfolio_url($requrl)) {
           my (undef,$udom,$unum,$file_name,$group) =
               &parse_portfolio_url($requrl);
           my $current_perms = &get_portfile_permissions($udom,$unum);
           my %access_controls = &get_access_controls($current_perms,
                                                      $group,$file_name);
           foreach my $key (keys(%{$access_controls{$file_name}})) {
               my ($num,$scope,$end,$start) = 
                   ($key =~ /^([^:]+):([a-z]+)_(\d*)_?(\d*)$/);
               if ($scope eq 'public') {
                   if ($start <= $now && $end == 0) {
                       $action = 'none';
                   } else {
                       $action = 'update';
                       $aclnum = $num;
                   }
                   last;
               }
           }
           if ($action eq 'none') {
                return 'ok';
           } else {
               my %changes;
               my $newend = 0;
               my $newstart = $now;
               my $newkey = $aclnum.':public_'.$newend.'_'.$newstart;
               $changes{$action}{$newkey} = {
                   type => 'public',
                   time => {
                       start => $newstart,
                       end   => $newend,
                   },
               };
               my ($outcome,$deloutcome,$new_values,$translation) =
                   &modify_access_controls($file_name,\%changes,$udom,$unum);
               return $outcome;
           }
       } else {
           return 'invalid';
       }
   }
   
 #------------------------------------------------------Get Marked as Read Only  #------------------------------------------------------Get Marked as Read Only
   
 sub get_marked_as_readonly {  sub get_marked_as_readonly {
Line 7019  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 7036  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 7046  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%$cuname+
Line 7143  sub repcopy_userfile { Line 7243  sub repcopy_userfile {
     if ($file =~ m|^/home/httpd/html/lonUsers/|) { return 'ok'; }      if ($file =~ m|^/home/httpd/html/lonUsers/|) { return 'ok'; }
     my ($cdom,$cnum,$filename) =       my ($cdom,$cnum,$filename) = 
  ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);   ($file=~m|^\Q$perlvar{'lonDocRoot'}\E/+userfiles/+($match_domain)/+($match_name)/+(.*)|);
     my ($info,$rtncode);  
     my $uri="/uploaded/$cdom/$cnum/$filename";      my $uri="/uploaded/$cdom/$cnum/$filename";
     if (-e "$file") {      if (-e "$file") {
   # we already have a local copy, check it out
  my @fileinfo = stat($file);   my @fileinfo = stat($file);
    my $rtncode;
    my $info;
  my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);   my $lwpresp = &getuploaded('HEAD',$uri,$cdom,$cnum,\$info,\$rtncode);
  if ($lwpresp ne 'ok') {   if ($lwpresp ne 'ok') {
   # there is no such file anymore, even though we had a local copy
     if ($rtncode eq '404') {      if ($rtncode eq '404') {
  unlink($file);   unlink($file);
     }      }
     #my $ua=new LWP::UserAgent;  
     #my $request=new HTTP::Request('GET',&tokenwrapper($uri));  
     #my $response=$ua->request($request);  
     #if ($response->is_success()) {  
  # return $response->content;  
  #    } else {  
  # return -1;  
  #    }  
     return -1;      return -1;
  }   }
  if ($info < $fileinfo[9]) {   if ($info < $fileinfo[9]) {
   # nice, the file we have is up-to-date, just say okay
     return 'ok';      return 'ok';
    } else {
   # the file is outdated, get rid of it
       unlink($file);
  }   }
  $info = '';      }
  $lwpresp = &getuploaded('GET',$uri,$cdom,$cnum,\$info,\$rtncode);  # one way or the other, at this point, we don't have the file
  if ($lwpresp ne 'ok') {  # construct the correct path for the file
     return -1;      my @parts = ($cdom,$cnum); 
  }      if ($filename =~ m|^(.+)/[^/]+$|) {
     } else {   push @parts, split(/\//,$1);
  my $lwpresp = &getuploaded('GET',$uri,$cdom,$cnum,\$info,\$rtncode);      }
  if ($lwpresp ne 'ok') {      my $path = $perlvar{'lonDocRoot'}.'/userfiles';
     return -1;      foreach my $part (@parts) {
  }   $path .= '/'.$part;
  my @parts = ($cdom,$cnum);    if (!-e $path) {
  if ($filename =~ m|^(.+)/[^/]+$|) {      mkdir($path,0770);
     push @parts, split(/\//,$1);  
  }  
  my $path = $perlvar{'lonDocRoot'}.'/userfiles';  
  foreach my $part (@parts) {  
     $path .= '/'.$part;  
     if (!-e $path) {  
  mkdir($path,0770);  
     }  
  }   }
     }      }
     open(FILE,">$file");  # now the path exists for sure
     print FILE $info;  # get a user agent
     close(FILE);      my $ua=new LWP::UserAgent;
       my $transferfile=$file.'.in.transfer';
   # FIXME: this should flock
       if (-e $transferfile) { return 'ok'; }
       my $request;
       $uri=~s/^\///;
       $request=new HTTP::Request('GET','http://'.&hostname(&homeserver($cnum,$cdom)).'/raw/'.$uri);
       my $response=$ua->request($request,$transferfile);
   # did it work?
       if ($response->is_error()) {
    unlink($transferfile);
    &logthis("Userfile repcopy failed for $uri");
    return -1;
       }
   # worked, rename the transfer file
       rename($transferfile,$file);
     return 'ok';      return 'ok';
 }  }
   
Line 7203  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 7211  sub tokenwrapper { Line 7317  sub tokenwrapper {
     }      }
 }  }
   
   # call with reqtype HEAD: get last modification time
   # call with reqtype GET: get the file contents
   # Do not call this with reqtype GET for large files! It loads everything into memory
   #
 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 7304  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 7316  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 7495  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 7511  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_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 $ip;
  if (!exists($name_to_ip{$name})) {   if (!exists($name_to_ip{$name})) {
     $ip = gethostbyname($name);      $ip = gethostbyname($name);
     if (!$ip || length($ip) ne 4) {      if (!$ip || length($ip) ne 4) {
  &logthis("Skipping host $id name $name no IP found\n");   &logthis("Skipping host $id name $name no IP found");
  next;   next;
     }      }
     $ip=inet_ntoa($ip);      $ip=inet_ntoa($ip);
Line 7893  and course level Line 8015  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.1.824.2.3  
changed lines
  Added in v.1.838

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