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Diff for /loncom/lonnet/perl/lonnet.pm between versions 1.488 and 1.504

version 1.488, 2004/04/23 19:36:46 version 1.504, 2004/05/27 22:25:16
Line 434  sub overloaderror { Line 434  sub overloaderror {
     if ($overload>0) {      if ($overload>0) {
  $r->err_headers_out->{'Retry-After'}=$overload;   $r->err_headers_out->{'Retry-After'}=$overload;
         $r->log_error('Overload of '.$overload.' on '.$checkserver);          $r->log_error('Overload of '.$overload.' on '.$checkserver);
         return 413;          return 409;
     }          }    
     return '';      return '';
 }  }
Line 642  sub assign_access_key { Line 642  sub assign_access_key {
 # a valid key looks like uname:udom#comments  # a valid key looks like uname:udom#comments
 # comments are being appended  # comments are being appended
 #  #
     my ($ckey,$cdom,$cnum,$udom,$uname,$logentry)=@_;      my ($ckey,$kdom,$knum,$cdom,$cnum,$udom,$uname,$logentry)=@_;
       $kdom=
      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'} unless (defined($kdom));
       $knum=
      $ENV{'course.'.$ENV{'request.course.id'}.'.num'} unless (defined($knum));
     $cdom=      $cdom=
    $ENV{'course.'.$ENV{'request.course.id'}.'.domain'} unless (defined($cdom));     $ENV{'course.'.$ENV{'request.course.id'}.'.domain'} unless (defined($cdom));
     $cnum=      $cnum=
    $ENV{'course.'.$ENV{'request.course.id'}.'.num'} unless (defined($cnum));     $ENV{'course.'.$ENV{'request.course.id'}.'.num'} unless (defined($cnum));
     $udom=$ENV{'user.name'} unless (defined($udom));      $udom=$ENV{'user.name'} unless (defined($udom));
     $uname=$ENV{'user.domain'} unless (defined($uname));      $uname=$ENV{'user.domain'} unless (defined($uname));
     my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);      my %existing=&get('accesskeys',[$ckey],$kdom,$knum);
     if (($existing{$ckey}=~/^\#(.*)$/) || # - new key      if (($existing{$ckey}=~/^\#(.*)$/) || # - new key
         ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) {           ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#(.*)$/)) { 
                                                   # assigned to this person                                                    # assigned to this person
Line 658  sub assign_access_key { Line 662  sub assign_access_key {
                                                   # the first time around                                                    # the first time around
 # ready to assign  # ready to assign
         $logentry=$1.'; '.$logentry;          $logentry=$1.'; '.$logentry;
         if (&put('accesskey',{$ckey=>$uname.':'.$udom.'#'.$logentry},          if (&put('accesskeys',{$ckey=>$uname.':'.$udom.'#'.$logentry},
                                                  $cdom,$cnum) eq 'ok') {                                                   $kdom,$knum) eq 'ok') {
 # key now belongs to user  # key now belongs to user
     my $envkey='key.'.$cdom.'_'.$cnum;      my $envkey='key.'.$cdom.'_'.$cnum;
             if (&put('environment',{$envkey => $ckey}) eq 'ok') {              if (&put('environment',{$envkey => $ckey}) eq 'ok') {
Line 755  sub validate_access_key { Line 759  sub validate_access_key {
    $ENV{'course.'.$ENV{'request.course.id'}.'.domain'} unless (defined($cdom));     $ENV{'course.'.$ENV{'request.course.id'}.'.domain'} unless (defined($cdom));
     $cnum=      $cnum=
    $ENV{'course.'.$ENV{'request.course.id'}.'.num'} unless (defined($cnum));     $ENV{'course.'.$ENV{'request.course.id'}.'.num'} unless (defined($cnum));
     $udom=$ENV{'user.name'} unless (defined($udom));      $udom=$ENV{'user.domain'} unless (defined($udom));
     $uname=$ENV{'user.domain'} unless (defined($uname));      $uname=$ENV{'user.name'} unless (defined($uname));
     my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);      my %existing=&get('accesskeys',[$ckey],$cdom,$cnum);
     return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);      return ($existing{$ckey}=~/^\Q$uname\E\:\Q$udom\E\#/);
 }  }
Line 1165  sub externalssi { Line 1169  sub externalssi {
     return $response->content;      return $response->content;
 }  }
   
 # ------- Add a token to a remote URI's query string to vouch for access rights  # -------------------------------- Allow a /uploaded/ URI to be vouched for
   
 sub tokenwrapper {  sub allowuploaded {
     my $uri=shift;      my ($srcurl,$url)=@_;
     $uri=~s/^http\:\/\/([^\/]+)//;      $url=&clutter(&declutter($url));
     $uri=~s/^\///;      my $dir=$url;
     $ENV{'user.environment'}=~/\/([^\/]+)\.id/;      $dir=~s/\/[^\/]+$//;
     my $token=$1;      my %httpref=();
 #    if ($uri=~/^uploaded\/([^\/]+)\/([^\/]+)\/([^\/]+)(\?\.*)*$/) {      my $httpurl=&hreflocation('',$url);
     if ($uri=~m|^uploaded/([^/]+)/([^/]+)/(.+)(\?\.*)*$|) {      $httpref{'httpref.'.$httpurl}=$srcurl;
  &appenv('userfile.'.$1.'/'.$2.'/'.$3 => $ENV{'request.course.id'});      &Apache::lonnet::appenv(%httpref);
         return 'http://'.$hostname{ &homeserver($2,$1)}.'/'.$uri.  
                (($uri=~/\?/)?'&':'?').'token='.$token.  
                                '&tokenissued='.$perlvar{'lonHostID'};  
     } else {  
  return '/adm/notfound.html';  
     }  
 }  }
   
 # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course  # --------- File operations in /home/httpd/html/userfiles/$domain/1/2/3/$course
Line 1270  sub process_coursefile { Line 1268  sub process_coursefile {
 # output: url of file in userspace  # output: url of file in userspace
   
 sub userfileupload {  sub userfileupload {
     my ($formname,$coursedoc)=@_;      my ($formname,$coursedoc,$subdir)=@_;
       if (!defined($subdir)) { $subdir='unknown'; }
     my $fname=$ENV{'form.'.$formname.'.filename'};      my $fname=$ENV{'form.'.$formname.'.filename'};
 # Replace Windows backslashes by forward slashes  # Replace Windows backslashes by forward slashes
     $fname=~s/\\/\//g;      $fname=~s/\\/\//g;
Line 1287  sub userfileupload { Line 1286  sub userfileupload {
     my $docuname='';      my $docuname='';
     my $docudom='';      my $docudom='';
     my $docuhome='';      my $docuhome='';
       $fname="$subdir/$fname";
     if ($coursedoc) {      if ($coursedoc) {
  $docuname=$ENV{'course.'.$ENV{'request.course.id'}.'.num'};   $docuname=$ENV{'course.'.$ENV{'request.course.id'}.'.num'};
  $docudom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};   $docudom=$ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
Line 1309  sub finishuserfileupload { Line 1309  sub finishuserfileupload {
     my ($docuname,$docudom,$docuhome,$formname,$fname)=@_;      my ($docuname,$docudom,$docuhome,$formname,$fname)=@_;
     my $path=$docudom.'/'.$docuname.'/';      my $path=$docudom.'/'.$docuname.'/';
     my $filepath=$perlvar{'lonDocRoot'};      my $filepath=$perlvar{'lonDocRoot'};
       my ($fnamepath,$file);
       $file=$fname;
       if ($fname=~m|/|) {
           ($fnamepath,$file) = ($fname =~ m|^(.*)/([^/]+)$|);
    $path.=$fnamepath.'/';
       }
     my @parts=split(/\//,$filepath.'/userfiles/'.$path);      my @parts=split(/\//,$filepath.'/userfiles/'.$path);
     my $count;      my $count;
     for ($count=4;$count<=$#parts;$count++) {      for ($count=4;$count<=$#parts;$count++) {
Line 1319  sub finishuserfileupload { Line 1325  sub finishuserfileupload {
     }      }
 # Save the file  # Save the file
     {      {
        open(my $fh,'>'.$filepath.'/'.$fname);   #&Apache::lonnet::logthis("Saving to $filepath $file");
          open(my $fh,'>'.$filepath.'/'.$file);
        print $fh $ENV{'form.'.$formname};         print $fh $ENV{'form.'.$formname};
        close($fh);         close($fh);
     }      }
 # Notify homeserver to grep it  # Notify homeserver to grep it
 #  #
     my $fetchresult= &reply('fetchuserfile:'.$docudom.'/'.$docuname.'/'.$fname,      my $fetchresult= &reply('fetchuserfile:'.$path.$file,$docuhome);
     $docuhome);  
     if ($fetchresult eq 'ok') {      if ($fetchresult eq 'ok') {
 #  #
 # Return the URL to it  # Return the URL to it
         return '/uploaded/'.$path.$fname;          return '/uploaded/'.$path.$file;
     } else {      } else {
         &logthis('Failed to transfer '.$docudom.'/'.$docuname.'/'.$fname.          &logthis('Failed to transfer '.$path.$file.' to host '.$docuhome.
          ' to host '.$docuhome.': '.$fetchresult);   ': '.$fetchresult);
         return '/adm/notfound.html';          return '/adm/notfound.html';
     }          }    
 }  }
   
   sub removeuploadedurl {
       my ($url)=@_;
       my (undef,undef,$udom,$uname,$fname)=split('/',$url,5);
       return &Apache::lonnet::removeuserfile($uname,$udom,$fname);
   }
   
   sub removeuserfile {
       my ($docuname,$docudom,$fname)=@_;
       my $home=&homeserver($docuname,$docudom);
       return &reply("removeuserfile:$docudom/$docuname/$fname",$home);
   }
   
 # ------------------------------------------------------------------------- Log  # ------------------------------------------------------------------------- Log
   
 sub log {  sub log {
Line 1620  sub courseiddump { Line 1638  sub courseiddump {
 #  #
 # ----------------------------------------------------------- Check out an item  # ----------------------------------------------------------- Check out an item
   
   sub get_first_access {
       my ($type,$argsymb)=@_;
       my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
       if ($argsymb) { $symb=$argsymb; }
       my ($map,$id,$res)=&decode_symb($symb);
       if ($type eq 'map') { $res=$map; }
       my %times=&get('firstaccesstimes',[$res],$udom,$uname);
       return $times{$res};
   }
   
   sub set_first_access {
       my ($type)=@_;
       my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
       my ($map,$id,$res)=&decode_symb($symb);
       if ($type eq 'map') { $res=$map; }
       return &put('firstaccesstimes',{$res=>time},$udom,$uname);
   }
   
 sub checkout {  sub checkout {
     my ($symb,$tuname,$tudom,$tcrsid)=@_;      my ($symb,$tuname,$tudom,$tcrsid)=@_;
     my $now=time;      my $now=time;
Line 1798  sub hash2str { Line 1834  sub hash2str {
 sub hashref2str {  sub hashref2str {
   my ($hashref)=@_;    my ($hashref)=@_;
   my $result='__HASH_REF__';    my $result='__HASH_REF__';
   foreach (keys(%$hashref)) {    foreach (sort(keys(%$hashref))) {
     if (ref($_) eq 'ARRAY') {      if (ref($_) eq 'ARRAY') {
       $result.=&arrayref2str($_).'=';        $result.=&arrayref2str($_).'=';
     } elsif (ref($_) eq 'HASH') {      } elsif (ref($_) eq 'HASH') {
Line 2682  sub allowed { Line 2718  sub allowed {
   
 # URI is an uploaded document for this course  # URI is an uploaded document for this course
   
     if (($priv eq 'bre') &&       if (($priv eq 'bre') && ($uri=~m|^uploaded/|)) {
         ($uri=~/^uploaded\/$ENV{'course.'.$ENV{'request.course.id'}.'.domain'}\/$ENV{'course.'.$ENV{'request.course.id'}.'.num'}/)) {   my $refuri=$ENV{'httpref.'.$orguri};
         return 'F';   if ($refuri) {
       if ($refuri =~ m|^/adm/|) {
    $thisallowed='F';
       }
    }
     }      }
   
 # Full access at system, domain or course-wide level? Exit.  # Full access at system, domain or course-wide level? Exit.
   
     if ($thisallowed=~/F/) {      if ($thisallowed=~/F/) {
Line 3938  sub metadata { Line 3979  sub metadata {
     # if it is a non metadata possible uri return quickly      # if it is a non metadata possible uri return quickly
     if (($uri eq '') || (($uri =~ m|^/*adm/|) && ($uri !~ m|^adm/includes|)) ||      if (($uri eq '') || (($uri =~ m|^/*adm/|) && ($uri !~ m|^adm/includes|)) ||
         ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ /^~/) ||          ($uri =~ m|/$|) || ($uri =~ m|/.meta$|) || ($uri =~ /^~/) ||
  ($uri =~ m|home/[^/]+/public_html/|) || ($uri =~ m|^uploaded/|)) {   ($uri =~ m|home/[^/]+/public_html/|)) {
  return undef;   return undef;
     }      }
     my $filename=$uri;      my $filename=$uri;
Line 3967  sub metadata { Line 4008  sub metadata {
  }   }
         my %metathesekeys=();          my %metathesekeys=();
         unless ($filename=~/\.meta$/) { $filename.='.meta'; }          unless ($filename=~/\.meta$/) { $filename.='.meta'; }
  my $metastring=&getfile(&filelocation('',&clutter($filename)));   my $metastring;
    if ($uri !~ m|^uploaded/|) {
       $metastring=&getfile(&filelocation('',&clutter($filename)));
    }
         my $parser=HTML::LCParser->new(\$metastring);          my $parser=HTML::LCParser->new(\$metastring);
         my $token;          my $token;
         undef %metathesekeys;          undef %metathesekeys;
Line 4436  sub numval2 { Line 4480  sub numval2 {
 }  }
   
 sub latest_rnd_algorithm_id {  sub latest_rnd_algorithm_id {
     return '64bit2';      return '64bit3';
   }
   
   sub get_rand_alg {
       my ($courseid)=@_;
       if (!$courseid) { $courseid=(&Apache::lonxml::whichuser())[1]; }
       if ($courseid) {
    return $ENV{"course.$courseid.rndseed"};
       }
       return &latest_rnd_algorithm_id();
   }
   
   sub getCODE {
       if (defined($ENV{'form.CODE'})) { return $ENV{'form.CODE'}; }
       if (defined($Apache::lonhomework::parsing_a_problem) &&
    defined($Apache::lonhomework::history{'resource.CODE'})) {
    return $Apache::lonhomework::history{'resource.CODE'};
       }
       return undef;
 }  }
   
 sub rndseed {  sub rndseed {
Line 4449  sub rndseed { Line 4511  sub rndseed {
     if (!$courseid) { $courseid=$wcourseid; }      if (!$courseid) { $courseid=$wcourseid; }
     if (!$domain) { $domain=$wdomain; }      if (!$domain) { $domain=$wdomain; }
     if (!$username) { $username=$wusername }      if (!$username) { $username=$wusername }
     my $which=$ENV{"course.$courseid.rndseed"};      my $which=&get_rand_alg();
     my $CODE=$ENV{'form.CODE'};      if (defined(&getCODE())) {
     if (defined($CODE)) {  
  return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);   return &rndseed_CODE_64bit($symb,$courseid,$domain,$username);
       } elsif ($which eq '64bit3') {
    return &rndseed_64bit3($symb,$courseid,$domain,$username);
     } elsif ($which eq '64bit2') {      } elsif ($which eq '64bit2') {
  return &rndseed_64bit2($symb,$courseid,$domain,$username);   return &rndseed_64bit2($symb,$courseid,$domain,$username);
     } elsif ($which eq '64bit') {      } elsif ($which eq '64bit') {
Line 4520  sub rndseed_64bit2 { Line 4583  sub rndseed_64bit2 {
     }      }
 }  }
   
   sub rndseed_64bit3 {
       my ($symb,$courseid,$domain,$username)=@_;
       {
    use integer;
    # strings need to be an even # of cahracters long, it it is odd the
           # last characters gets thrown away
    my $symbchck=unpack("%32S*",$symb.' ') << 21;
    my $symbseed=numval2($symb) << 10;
    my $namechck=unpack("%32S*",$username.' ');
   
    my $nameseed=numval2($username) << 21;
    my $domainseed=unpack("%32S*",$domain.' ') << 10;
    my $courseseed=unpack("%32S*",$courseid.' ');
   
    my $num1=$symbchck+$symbseed+$namechck;
    my $num2=$nameseed+$domainseed+$courseseed;
    #&Apache::lonxml::debug("$symbseed:$nameseed;$domainseed|$courseseed;$namechck:$symbchck");
    #&Apache::lonxml::debug("rndseed :$num:$symb");
    return "$num1:$num2";
       }
   }
   
 sub rndseed_CODE_64bit {  sub rndseed_CODE_64bit {
     my ($symb,$courseid,$domain,$username)=@_;      my ($symb,$courseid,$domain,$username)=@_;
     {      {
  use integer;   use integer;
  my $symbchck=unpack("%32S*",$symb.' ') << 16;   my $symbchck=unpack("%32S*",$symb.' ') << 16;
  my $symbseed=numval2($symb);   my $symbseed=numval2($symb);
  my $CODEchck=unpack("%32S*",$ENV{'form.CODE'}.' ') << 16;   my $CODEchck=unpack("%32S*",&getCODE().' ') << 16;
  my $CODEseed=numval($ENV{'form.CODE'});   my $CODEseed=numval(&getCODE());
  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:$symbchck");   #&Apache::lonxml::debug("$symbseed:$CODEchck|$CODEseed:$courseseed:$symbchck");
  #&Apache::lonxml::debug("rndseed :$num1:$num2:$symb");   #&Apache::lonxml::debug("rndseed :$num1:$num2:$symb");
  return "$num1,$num2";   return "$num1:$num2";
     }      }
 }  }
   
 sub setup_random_from_rndseed {  sub setup_random_from_rndseed {
     my ($rndseed)=@_;      my ($rndseed)=@_;
     if ($rndseed =~/,/) {      if ($rndseed =~/([,:])/) {
  my ($num1,$num2)=split(/,/,$rndseed);   my ($num1,$num2)=split(/[,:]/,$rndseed);
  &Math::Random::random_set_seed(abs($num1),abs($num2));   &Math::Random::random_set_seed(abs($num1),abs($num2));
     } else {      } else {
  &Math::Random::random_set_seed_from_phrase($rndseed);   &Math::Random::random_set_seed_from_phrase($rndseed);
Removed from v.1.488  
changed lines
  Added in v.1.504

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