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Diff for /loncom/lonnet/perl/lonnet.pm between versions 1.784 and 1.792

version 1.784, 2006/09/28 01:38:59 version 1.792, 2006/10/16 19:18:15
Line 52  use Storable qw(lock_store lock_nstore l Line 52  use Storable qw(lock_store lock_nstore l
 use Time::HiRes qw( gettimeofday tv_interval );  use Time::HiRes qw( gettimeofday tv_interval );
 use Cache::Memcached;  use Cache::Memcached;
 use Digest::MD5;  use Digest::MD5;
   use Math::Random;
 use lib '/home/httpd/lib/perl';  use lib '/home/httpd/lib/perl';
 use LONCAPA;  use LONCAPA;
 use LONCAPA::Configuration;  use LONCAPA::Configuration;
Line 303  sub convert_and_load_session_env { Line 304  sub convert_and_load_session_env {
     }      }
     my %temp_env;      my %temp_env;
     foreach my $line (@profile) {      foreach my $line (@profile) {
    if ($line !~ m/=/) {
       return 0;
    }
  chomp($line);   chomp($line);
  my ($envname,$envvalue)=split(/=/,$line,2);   my ($envname,$envvalue)=split(/=/,$line,2);
  $temp_env{&unescape($envname)} = &unescape($envvalue);   $temp_env{&unescape($envname)} = &unescape($envvalue);
Line 314  sub convert_and_load_session_env { Line 318  sub convert_and_load_session_env {
  @env{keys(%temp_env)} = @disk_env{keys(%temp_env)};   @env{keys(%temp_env)} = @disk_env{keys(%temp_env)};
  untie(%disk_env);   untie(%disk_env);
     }      }
       return 1;
 }  }
   
 # ------------------------------------------- Transfer profile into environment  # ------------------------------------------- Transfer profile into environment
 my $env_loaded;  my $env_loaded;
 sub transfer_profile_to_env {  sub transfer_profile_to_env {
     if ($env_loaded) { return; }       my ($lonidsdir,$handle,$force_transfer) = @_;
       if (!$force_transfer && $env_loaded) { return; } 
   
     my ($lonidsdir,$handle)=@_;  
     if (!defined($lonidsdir)) {      if (!defined($lonidsdir)) {
  $lonidsdir = $perlvar{'lonIDsDir'};   $lonidsdir = $perlvar{'lonIDsDir'};
     }      }
Line 329  sub transfer_profile_to_env { Line 334  sub transfer_profile_to_env {
         ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );          ($handle) = ($env{'user.environment'} =~m|/([^/]+)\.id$| );
     }      }
   
     my %remove;      my $convert;
     if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",&GDBM_READER(),      {
     0640)) {      open(my $idf,"$lonidsdir/$handle.id");
  @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};   flock($idf,LOCK_SH);
  untie(%disk_env);   if (tie(my %disk_env,'GDBM_File',"$lonidsdir/$handle.id",
     } else {   &GDBM_READER(),0640)) {
  &convert_and_load_session_env($lonidsdir,$handle);      @env{keys(%disk_env)} = @disk_env{keys(%disk_env)};
       untie(%disk_env);
    } else {
       $convert = 1;
    }
       }
       if ($convert) {
    if (!&convert_and_load_session_env($lonidsdir,$handle)) {
       &logthis("Failed to load session, or convert session.");
    }
     }      }
   
       my %remove;
     while ( my $envname = each(%env) ) {      while ( my $envname = each(%env) ) {
         if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {          if (my ($key,$time) = ($envname =~ /^(cgi\.(\d+)_\d+\.)/)) {
             if ($time < time-300) {              if ($time < time-300) {
Line 398  sub delenv { Line 413  sub delenv {
     return 'ok';      return 'ok';
 }  }
   
   =pod
   
   =item * get_env_multiple($name) 
   
   gets $name from the %env hash, it seemlessly handles the cases where multiple
   values may be defined and end up as an array ref.
   
   returns an array of values
   
   =cut
   
   sub get_env_multiple {
       my ($name) = @_;
       my @values;
       if (defined($env{$name})) {
           # exists is it an array
           if (ref($env{$name})) {
               @values=@{ $env{$name} };
           } else {
               $values[0]=$env{$name};
           }
       }
       return(@values);
   }
   
 # ------------------------------------------ Find out current server userload  # ------------------------------------------ Find out current server userload
 # there is a copy in lond  # there is a copy in lond
 sub userload {  sub userload {
Line 1170  sub absolute_url { Line 1210  sub absolute_url {
     return $protocol.$host_name;      return $protocol.$host_name;
 }  }
   
 sub absolute_url {  
     my ($host_name) = @_;  
     my $protocol = ($ENV{'SERVER_PORT'} == 443?'https://':'http://');  
     if ($host_name eq '') {  
  $host_name = $ENV{'SERVER_NAME'};  
     }  
     return $protocol.$host_name;  
 }  
   
 sub ssi {  sub ssi {
   
     my ($fn,%form)=@_;      my ($fn,%form)=@_;
Line 1948  sub courseidput { Line 1979  sub courseidput {
 }  }
   
 sub courseiddump {  sub courseiddump {
     my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,$coursefilter,$hostidflag,$hostidref,$typefilter)=@_;      my ($domfilter,$descfilter,$sincefilter,$instcodefilter,$ownerfilter,$coursefilter,$hostidflag,$hostidref,$typefilter,$regexp_ok)=@_;
     my %returnhash=();      my %returnhash=();
     unless ($domfilter) { $domfilter=''; }      unless ($domfilter) { $domfilter=''; }
     foreach my $tryserver (keys %libserv) {      foreach my $tryserver (keys %libserv) {
Line 1957  sub courseiddump { Line 1988  sub courseiddump {
         foreach (          foreach (
                  split(/\&/,&reply('courseiddump:'.$hostdom{$tryserver}.':'.                   split(/\&/,&reply('courseiddump:'.$hostdom{$tryserver}.':'.
        $sincefilter.':'.&escape($descfilter).':'.         $sincefilter.':'.&escape($descfilter).':'.
                                &escape($instcodefilter).':'.&escape($ownerfilter).':'.&escape($coursefilter).':'.&escape($typefilter),                                 &escape($instcodefilter).':'.&escape($ownerfilter).':'.&escape($coursefilter).':'.&escape($typefilter).':'.&escape($regexp_ok),
                                $tryserver))) {                                 $tryserver))) {
     my ($key,$value)=split(/\=/,$_);      my ($key,$value)=split(/\=/,$_);
                     if (($key) && ($value)) {                      if (($key) && ($value)) {
Line 2030  sub get_domain_roles { Line 2061  sub get_domain_roles {
   
 sub get_first_access {  sub get_first_access {
     my ($type,$argsymb)=@_;      my ($type,$argsymb)=@_;
     my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();      my ($symb,$courseid,$udom,$uname)=&whichuser();
     if ($argsymb) { $symb=$argsymb; }      if ($argsymb) { $symb=$argsymb; }
     my ($map,$id,$res)=&decode_symb($symb);      my ($map,$id,$res)=&decode_symb($symb);
     if ($type eq 'map') {      if ($type eq 'map') {
Line 2044  sub get_first_access { Line 2075  sub get_first_access {
   
 sub set_first_access {  sub set_first_access {
     my ($type)=@_;      my ($type)=@_;
     my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();      my ($symb,$courseid,$udom,$uname)=&whichuser();
     my ($map,$id,$res)=&decode_symb($symb);      my ($map,$id,$res)=&decode_symb($symb);
     if ($type eq 'map') {      if ($type eq 'map') {
  $res=&symbread($map);   $res=&symbread($map);
Line 4226  sub auto_instcode_format { Line 4257  sub auto_instcode_format {
     }      }
 }  }
   
   sub auto_instcode_defaults {
       my ($domain,$returnhash,$code_order) = @_;
       my @homeservers;
       foreach my $tryserver (keys %libserv) {
           if ($hostdom{$tryserver} eq $domain) {
               if (!grep/^\Q$tryserver\E$/,@homeservers) {
                   push(@homeservers,$tryserver);
               }
           }
       }
       my $ok_response = 0;
       my $response;
       while (@homeservers > 0 && $ok_response == 0) {
           my $server = shift(@homeservers);
           $response=&reply('autoinstcodedefaults:'.$domain,$server);
           if ($response !~ /(con_lost|error|no_such_host|refused)/) {
               foreach (split(/\&/,$response)) {
                   my ($name,$value)=split(/\=/,$_);
                   if ($name eq 'code_order') {
                       @{$code_order} = split(/\&/,&unescape($value));
                   } else {
                       $$returnhash{&unescape($name)}=&unescape($value);
                   }
               }
           }
           $ok_response = 1;
       }
       if ($ok_response) {
           return 'ok';
       } else {
           return $response;
       }
   } 
   
 sub auto_validate_class_sec {  sub auto_validate_class_sec {
     my ($cdom,$cnum,$owner,$inst_class) = @_;      my ($cdom,$cnum,$owner,$inst_class) = @_;
     my $homeserver = &homeserver($cnum,$cdom);      my $homeserver = &homeserver($cnum,$cdom);
Line 5272  sub GetFileTimestamp { Line 5337  sub GetFileTimestamp {
   
 sub stat_file {  sub stat_file {
     my ($uri) = @_;      my ($uri) = @_;
     $uri = &clutter($uri);      $uri = &clutter_with_no_wrapper($uri);
   
     # we want just the url part without the unneeded accessor url bits  
     if ($uri =~ m-^/adm/-) {  
  $uri=~s-^/adm/wrapper/-/-;  
  $uri=~s-^/adm/coursedocs/showdoc/-/-;  
     }  
     my ($udom,$uname,$file,$dir);      my ($udom,$uname,$file,$dir);
     if ($uri =~ m-^/(uploaded|editupload)/-) {      if ($uri =~ m-^/(uploaded|editupload)/-) {
  ($udom,$uname,$file) =   ($udom,$uname,$file) =
Line 5510  sub EXT { Line 5570  sub EXT {
  $symbparm=&get_symb_from_alias($symbparm);   $symbparm=&get_symb_from_alias($symbparm);
     }      }
     if (!($uname && $udom)) {      if (!($uname && $udom)) {
       (my $cursymb,$courseid,$udom,$uname,$publicuser)=        (my $cursymb,$courseid,$udom,$uname,$publicuser)= &whichuser($symbparm);
   &Apache::lonxml::whichuser($symbparm);  
       if (!$symbparm) { $symbparm=$cursymb; }        if (!$symbparm) { $symbparm=$cursymb; }
     } else {      } else {
  $courseid=$env{'request.course.id'};   $courseid=$env{'request.course.id'};
Line 6165  sub gettitle { Line 6224  sub gettitle {
 sub get_slot {  sub get_slot {
     my ($which,$cnum,$cdom)=@_;      my ($which,$cnum,$cdom)=@_;
     if (!$cnum || !$cdom) {      if (!$cnum || !$cdom) {
  (undef,my $courseid)=&Apache::lonxml::whichuser();   (undef,my $courseid)=&whichuser();
  $cdom=$env{'course.'.$courseid.'.domain'};   $cdom=$env{'course.'.$courseid.'.domain'};
  $cnum=$env{'course.'.$courseid.'.num'};   $cnum=$env{'course.'.$courseid.'.num'};
     }      }
Line 6214  sub symblist { Line 6273  sub symblist {
 sub symbverify {  sub symbverify {
     my ($symb,$thisurl)=@_;      my ($symb,$thisurl)=@_;
     my $thisfn=$thisurl;      my $thisfn=$thisurl;
 # wrapper not part of symbs  
     $thisfn=~s/^\/adm\/wrapper//;  
     $thisfn=~s/^\/adm\/coursedocs\/showdoc\///;  
     $thisfn=&declutter($thisfn);      $thisfn=&declutter($thisfn);
 # direct jump to resource in page or to a sequence - will construct own symbs  # direct jump to resource in page or to a sequence - will construct own symbs
     if ($thisfn=~/\.(page|sequence)$/) { return 1; }      if ($thisfn=~/\.(page|sequence)$/) { return 1; }
Line 6499  sub latest_rnd_algorithm_id { Line 6555  sub latest_rnd_algorithm_id {
   
 sub get_rand_alg {  sub get_rand_alg {
     my ($courseid)=@_;      my ($courseid)=@_;
     if (!$courseid) { $courseid=(&Apache::lonxml::whichuser())[1]; }      if (!$courseid) { $courseid=(&whichuser())[1]; }
     if ($courseid) {      if ($courseid) {
  return $env{"course.$courseid.rndseed"};   return $env{"course.$courseid.rndseed"};
     }      }
Line 6525  sub getCODE { Line 6581  sub getCODE {
 sub rndseed {  sub rndseed {
     my ($symb,$courseid,$domain,$username)=@_;      my ($symb,$courseid,$domain,$username)=@_;
   
     my ($wsymb,$wcourseid,$wdomain,$wusername)=&Apache::lonxml::whichuser();      my ($wsymb,$wcourseid,$wdomain,$wusername)=&whichuser();
     if (!$symb) {      if (!$symb) {
  unless ($symb=$wsymb) { return time; }   unless ($symb=$wsymb) { return time; }
     }      }
Line 6566  sub rndseed_32bit { Line 6622  sub rndseed_32bit {
  my $domainseed=unpack("%32C*",$domain) << 7;   my $domainseed=unpack("%32C*",$domain) << 7;
  my $courseseed=unpack("%32C*",$courseid);   my $courseseed=unpack("%32C*",$courseid);
  my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;   my $num=$symbseed+$nameseed+$domainseed+$courseseed+$namechck+$symbchck;
  #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");   #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
  #&Apache::lonxml::debug("rndseed :$num:$symb");   #&logthis("rndseed :$num:$symb");
  if ($_64bit) { $num=(($num<<32)>>32); }   if ($_64bit) { $num=(($num<<32)>>32); }
  return $num;   return $num;
     }      }
Line 6587  sub rndseed_64bit { Line 6643  sub rndseed_64bit {
   
  my $num1=$symbchck+$symbseed+$namechck;   my $num1=$symbchck+$symbseed+$namechck;
  my $num2=$nameseed+$domainseed+$courseseed;   my $num2=$nameseed+$domainseed+$courseseed;
  #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");   #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
  #&Apache::lonxml::debug("rndseed :$num:$symb");   #&logthis("rndseed :$num:$symb");
  if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }   if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
  if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }   if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
  return "$num1,$num2";   return "$num1,$num2";
Line 6611  sub rndseed_64bit2 { Line 6667  sub rndseed_64bit2 {
   
  my $num1=$symbchck+$symbseed+$namechck;   my $num1=$symbchck+$symbseed+$namechck;
  my $num2=$nameseed+$domainseed+$courseseed;   my $num2=$nameseed+$domainseed+$courseseed;
  #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");   #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
  #&Apache::lonxml::debug("rndseed :$num:$symb");   #&logthis("rndseed :$num:$symb");
  return "$num1,$num2";   return "$num1,$num2";
     }      }
 }  }
Line 6633  sub rndseed_64bit3 { Line 6689  sub rndseed_64bit3 {
   
  my $num1=$symbchck+$symbseed+$namechck;   my $num1=$symbchck+$symbseed+$namechck;
  my $num2=$nameseed+$domainseed+$courseseed;   my $num2=$nameseed+$domainseed+$courseseed;
  #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");   #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
  #&Apache::lonxml::debug("rndseed :$num1:$num2:$_64bit");   #&logthis("rndseed :$num1:$num2:$_64bit");
  if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }   if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
   
  return "$num1:$num2";   return "$num1:$num2";
Line 6657  sub rndseed_64bit4 { Line 6713  sub rndseed_64bit4 {
   
  my $num1=$symbchck+$symbseed+$namechck;   my $num1=$symbchck+$symbseed+$namechck;
  my $num2=$nameseed+$domainseed+$courseseed;   my $num2=$nameseed+$domainseed+$courseseed;
  #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");   #&logthis("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
  #&Apache::lonxml::debug("rndseed :$num1:$num2:$_64bit");   #&logthis("rndseed :$num1:$num2:$_64bit");
  if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }   if ($_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
   
  return "$num1:$num2";   return "$num1:$num2";
Line 6682  sub rndseed_CODE_64bit { Line 6738  sub rndseed_CODE_64bit {
  my $courseseed=unpack("%32S*",$courseid.' ');   my $courseseed=unpack("%32S*",$courseid.' ');
  my $num1=$symbseed+$CODEchck;   my $num1=$symbseed+$CODEchck;
  my $num2=$CODEseed+$courseseed+$symbchck;   my $num2=$CODEseed+$courseseed+$symbchck;
  #&Apache::lonxml::debug("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");   #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
  #&Apache::lonxml::debug("rndseed :$num1:$num2:$symb");   #&logthis("rndseed :$num1:$num2:$symb");
  if ($_64bit) { $num1=(($num1<<32)>>32); }   if ($_64bit) { $num1=(($num1<<32)>>32); }
  if ($_64bit) { $num2=(($num2<<32)>>32); }   if ($_64bit) { $num2=(($num2<<32)>>32); }
  return "$num1:$num2";   return "$num1:$num2";
Line 6701  sub rndseed_CODE_64bit4 { Line 6757  sub rndseed_CODE_64bit4 {
  my $courseseed=unpack("%32S*",$courseid.' ');   my $courseseed=unpack("%32S*",$courseid.' ');
  my $num1=$symbseed+$CODEchck;   my $num1=$symbseed+$CODEchck;
  my $num2=$CODEseed+$courseseed+$symbchck;   my $num2=$CODEseed+$courseseed+$symbchck;
  #&Apache::lonxml::debug("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");   #&logthis("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
  #&Apache::lonxml::debug("rndseed :$num1:$num2:$symb");   #&logthis("rndseed :$num1:$num2:$symb");
  if ($_64bit) { $num1=(($num1<<32)>>32); }   if ($_64bit) { $num1=(($num1<<32)>>32); }
  if ($_64bit) { $num2=(($num2<<32)>>32); }   if ($_64bit) { $num2=(($num2<<32)>>32); }
  return "$num1:$num2";   return "$num1:$num2";
Line 6763  sub ireceipt { Line 6819  sub ireceipt {
     my $return =&recprefix($fucourseid).'-';      my $return =&recprefix($fucourseid).'-';
     if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||      if ($env{"course.$fucourseid.receiptalg"} eq 'receipt2' ||
  $env{'request.state'} eq 'construct') {   $env{'request.state'} eq 'construct') {
  &Apache::lonxml::debug("doing receipt2  using parts $cpart, uname $cuname and udom $cudom gets  ".($cpart%$cuname).   #&logthis("doing receipt2  using parts $cpart, uname $cuname and udom $cudom gets  ".($cpart%$cuname)." and ".($cpart%$cudom));
        " and ".($cpart%$cudom));  
                 
  $return.= ($cunique%$cuname+   $return.= ($cunique%$cuname+
    $cunique%$cudom+     $cunique%$cudom+
Line 6787  sub ireceipt { Line 6842  sub ireceipt {
   
 sub receipt {  sub receipt {
     my ($part)=@_;      my ($part)=@_;
     my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();      my ($symb,$courseid,$domain,$name) = &whichuser();
     return &ireceipt($name,$domain,$courseid,$symb,$part);      return &ireceipt($name,$domain,$courseid,$symb,$part);
 }  }
   
   sub whichuser {
       my ($passedsymb)=@_;
       my ($symb,$courseid,$domain,$name,$publicuser);
       if (defined($env{'form.grade_symb'})) {
    my ($tmp_courseid)=&get_env_multiple('form.grade_courseid');
    my $allowed=&allowed('vgr',$tmp_courseid);
    if (!$allowed &&
       exists($env{'request.course.sec'}) &&
       $env{'request.course.sec'} !~ /^\s*$/) {
       $allowed=&allowed('vgr',$tmp_courseid.
         '/'.$env{'request.course.sec'});
    }
    if ($allowed) {
       ($symb)=&get_env_multiple('form.grade_symb');
       $courseid=$tmp_courseid;
       ($domain)=&get_env_multiple('form.grade_domain');
       ($name)=&get_env_multiple('form.grade_username');
       return ($symb,$courseid,$domain,$name,$publicuser);
    }
       }
       if (!$passedsymb) {
    $symb=&symbread();
       } else {
    $symb=$passedsymb;
       }
       $courseid=$env{'request.course.id'};
       $domain=$env{'user.domain'};
       $name=$env{'user.name'};
       if ($name eq 'public' && $domain eq 'public') {
    if (!defined($env{'form.username'})) {
       $env{'form.username'}.=time.rand(10000000);
    }
    $name.=$env{'form.username'};
       }
       return ($symb,$courseid,$domain,$name,$publicuser);
   
   }
   
 # ------------------------------------------------------------ Serves up a file  # ------------------------------------------------------------ Serves up a file
 # returns either the contents of the file or   # returns either the contents of the file or 
 # -1 if the file doesn't exist  # -1 if the file doesn't exist
Line 7053  sub clutter { Line 7146  sub clutter {
     return $thisfn;      return $thisfn;
 }  }
   
   sub clutter_with_no_wrapper {
       my $uri = &clutter(shift);
       if ($uri =~ m-^/adm/-) {
    $uri =~ s-^/adm/wrapper/-/-;
    $uri =~ s-^/adm/coursedocs/showdoc/-/-;
       }
       return $uri;
   }
   
 sub freeze_escape {  sub freeze_escape {
     my ($value)=@_;      my ($value)=@_;
     if (ref($value)) {      if (ref($value)) {
Line 7189  sub get_iphost { Line 7291  sub get_iphost {
        chomp($configline);         chomp($configline);
        if ($configline) {         if ($configline) {
    my ($host,$type) = split(':',$configline,2);     my ($host,$type) = split(':',$configline,2);
    if ($type eq '') { $type = 'default' };     if (!defined($type) || $type eq '') { $type = 'default' };
    push(@{ $spareid{$type} }, $host);     push(@{ $spareid{$type} }, $host);
        }         }
     }      }
Removed from v.1.784  
changed lines
  Added in v.1.792

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