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Diff for /loncom/lonnet/perl/lonnet.pm between versions 1.823 and 1.833

version 1.823, 2007/01/12 22:14:28 version 1.833, 2007/02/18 01:51:20
Line 367  sub transfer_profile_to_env { Line 367  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 401  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} = $value;
  }   }
Line 399  sub delenv { Line 422  sub delenv {
                 "Attempt to delete from environment ".$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 1176  sub repcopy { Line 1202  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 1424  sub store_edited_file { Line 1451  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 1998  sub get_course_adv_roles { Line 2027  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 2008  sub get_my_roles { Line 2037  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 5081  sub is_locked { Line 5134  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 5316  sub modify_access_controls { Line 5367  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 7111  sub repcopy_userfile { Line 7209  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';
     my $ua=new LWP::UserAgent;      foreach my $part (@parts) {
     my $request=new HTTP::Request('GET',&tokenwrapper($uri));   $path .= '/'.$part;
     my $response=$ua->request($request);   if (!-e $path) {
     if ($response->is_success()) {      mkdir($path,0770);
  $info=$response->content;  
     } else {  
  return -1;  
     }  
  }  
  my @parts = ($cdom,$cnum);   
  if ($filename =~ m|^(.+)/[^/]+$|) {  
     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 7186  sub tokenwrapper { Line 7283  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/^\///;
Line 7302  sub current_machine_ids { Line 7403  sub current_machine_ids {
     return @ids;      return @ids;
 }  }
   
   sub additional_machine_domains {
       my @domains;
       open(my $fh,"<$perlvar{'lonTabDir'}/expected_domains.tab");
       while( my $line = <$fh>) {
           $line =~ s/\s//g;
           push(@domains,$line);
       }
       return @domains;
   }
   
   sub default_login_domain {
       my $domain = $perlvar{'lonDefDomain'};
       my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
       foreach my $posdom (&current_machine_domains(),
                           &additional_machine_domains()) {
           if (lc($posdom) eq lc($testdomain)) {
               $domain=$posdom;
               last;
           }
       }
       return $domain;
   }
   
 # ------------------------------------------------------------- Declutters URLs  # ------------------------------------------------------------- Declutters URLs
   
 sub declutter {  sub declutter {
Line 7474  sub get_iphost { Line 7598  sub get_iphost {
  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 7845  and course level Line 7969  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.1.823  
changed lines
  Added in v.1.833

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