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Diff for /loncom/lond between versions 1.139 and 1.142

version 1.139, 2003/08/25 15:33:47 version 1.142, 2003/09/09 20:47:46
Line 57 Line 57
 #      Management functions supported include:  #      Management functions supported include:
 #       - pushing /home/httpd/lonTabs/hosts.tab  #       - pushing /home/httpd/lonTabs/hosts.tab
 #       - pushing /home/httpd/lonTabs/domain.tab  #       - pushing /home/httpd/lonTabs/domain.tab
 ###  # 09/08/2003 Ron Fox:  Told lond to take care of change logging so we
   #      don't have to remember it:
   # $Log$
   # Revision 1.142  2003/09/09 20:47:46  www
   # Permanently store chatroom entries in chatroom.log
   #
   # Revision 1.141  2003/09/08 10:32:07  foxr
   # Added PushFile sub This sub oversees the push of a new configuration table file
   # Currently supported files are:
   # - hosts.tab   (transaction pushfile:hosts:contents)
   # - domain.tab  (transaction pushfile:domain:contents)
   #
   
   
 use strict;  use strict;
 use lib '/home/httpd/lib/perl/';  use lib '/home/httpd/lib/perl/';
Line 87  my $currenthostid; Line 99  my $currenthostid;
 my $currentdomainid;  my $currentdomainid;
   
 my $client;  my $client;
   my $clientip;
   
 my $server;  my $server;
 my $thisserver;  my $thisserver;
   
 my %hostid;  my %hostid;
 my %hostdom;  my %hostdom;
 my %hostip;  my %hostip;
   my %perlvar; # Will have the apache conf defined perl vars.
   
 #  #
 #  The array below are password error strings."  #  The array below are password error strings."
Line 133  my @adderrors    = ("ok", Line 148  my @adderrors    = ("ok",
   
   
 #  #
   #   GetCertificate: Given a transaction that requires a certificate,
   #   this function will extract the certificate from the transaction
   #   request.  Note that at this point, the only concept of a certificate
   #   is the hostname to which we are connected.
   #
   #   Parameter:
   #      request   - The request sent by our client (this parameterization may
   #                  need to change when we really use a certificate granting
   #                  authority.
   #
   sub GetCertificate {
       my $request = shift;
   
       return $clientip;
   }
   
   
   #
   #  ValidManager: Determines if a given certificate represents a valid manager.
   #                in this primitive implementation, the 'certificate' is
   #                just the connecting loncapa client name.  This is checked
   #                against a valid client list in the configuration.
   #
   #                  
   sub ValidManager {
       my $certificate = shift; 
   
       my $hostentry   = $hostid{$certificate};
       if ($hostentry ne undef) {
    &logthis('<font color="yellow">Authenticating manager'.
    " $hostentry</font>");
    return 1;
       } else {
    &logthis('<font color="red"> Failed manager authentication '.
    "$certificate </font>");
       }
   }
   #
   #   PushFile:  Called to do an administrative push of a file.
   #              - Ensure the file being pushed is one we support.
   #              - Backup the old file to <filename.saved>
   #              - Separate the contents of the new file out from the
   #                rest of the request.
   #              - Write the new file.
   #  Parameter:
   #     Request - The entire user request.  This consists of a : separated
   #               string pushfile:tablename:contents.
   #     NOTE:  The contents may have :'s in it as well making things a bit
   #            more interesting... but not much.
   #  Returns:
   #     String to send to client ("ok" or "refused" if bad file).
   #
   sub PushFile {
       my $request = shift;    
       my ($command, $filename, $contents) = split(":", $request, 3);
       
       #  At this point in time, pushes for only the following tables are
       #  supported:
       #   hosts.tab  ($filename eq host).
       #   domain.tab ($filename eq domain).
       # Construct the destination filename or reject the request.
       #
       # lonManage is supposed to ensure this, however this session could be
       # part of some elaborate spoof that managed somehow to authenticate.
       #
   
       my $tablefile = $perlvar{'lonTabDir'}.'/'; # need to precede with dir.
       if ($filename eq "host") {
    $tablefile .= "hosts.tab";
       } elsif ($filename eq "domain") {
    $tablefile .= "domain.tab";
       } else {
    return "refused";
       }
       #
       # >copy< the old table to the backup table
       #        don't rename in case system crashes/reboots etc. in the time
       #        window between a rename and write.
       #
       my $backupfile = $tablefile;
       $backupfile    =~ s/\.tab$/.old/;
       # CopyFile($tablefile, $backupfile);
       &logthis('<font color="green"> Pushfile: backed up '
       .$tablefile." to $backupfile</font>");
       
       #  Install the new file:
   
       # InstallFile($tablefile, $contents);
   
       #  Indicate success:
    
       return "ok";
   
   }
   #
 #  Convert an error return code from lcpasswd to a string value.  #  Convert an error return code from lcpasswd to a string value.
 #  #
 sub lcpasswdstrerror {  sub lcpasswdstrerror {
Line 182  $SIG{__DIE__}=\&catchexception; Line 292  $SIG{__DIE__}=\&catchexception;
 # ---------------------------------- Read loncapa_apache.conf and loncapa.conf  # ---------------------------------- Read loncapa_apache.conf and loncapa.conf
 &status("Read loncapa.conf and loncapa_apache.conf");  &status("Read loncapa.conf and loncapa_apache.conf");
 my $perlvarref=LONCAPA::Configuration::read_conf('loncapa.conf');  my $perlvarref=LONCAPA::Configuration::read_conf('loncapa.conf');
 my %perlvar=%{$perlvarref};  %perlvar=%{$perlvarref};
 undef $perlvarref;  undef $perlvarref;
   
 # ----------------------------- Make sure this process is running from user=www  # ----------------------------- Make sure this process is running from user=www
Line 534  sub make_new_child { Line 644  sub make_new_child {
     sigprocmask(SIG_BLOCK, $sigset)      sigprocmask(SIG_BLOCK, $sigset)
         or die "Can't block SIGINT for fork: $!\n";          or die "Can't block SIGINT for fork: $!\n";
   
     my $clientip;  
     die "fork: $!" unless defined ($pid = fork);      die "fork: $!" unless defined ($pid = fork);
           
     if ($pid) {      if ($pid) {
Line 703  sub make_new_child { Line 812  sub make_new_child {
      }       }
 #--------------------------------------------------------------------- pushfile  #--------------------------------------------------------------------- pushfile
    } elsif($userinput =~ /^pushfile/) {      } elsif($userinput =~ /^pushfile/) { 
        print $client "ok\n";         if($wasenc == 1) {
      my $cert = GetCertificate($userinput);
      if(ValidManager($cert)) {
          my $reply = PushFile($userinput);
          print $client "$reply\n";
      } else {
          print $client "refused\n";
      } 
          } else {
      print $client "refused\n";
          }
 #--------------------------------------------------------------------- reinit  #--------------------------------------------------------------------- reinit
    } elsif($userinput =~ /^reinit/) {     } elsif($userinput =~ /^reinit/) {
        print $client "ok\n";         if ($wasenc == 1) {
      my $cert = GetCertificate($userinput);
      if(ValidManager($cert)) {
          print $client "ok\n";
      } else {
          print $client "refused\n";
      }
          } else {
      print $client "refused\n";
          }
 # ------------------------------------------------------------------------ auth  # ------------------------------------------------------------------------ auth
                    } elsif ($userinput =~ /^auth/) {                     } elsif ($userinput =~ /^auth/) {
      if ($wasenc==1) {       if ($wasenc==1) {
Line 1918  sub chatadd { Line 2046  sub chatadd {
     my %hash;      my %hash;
     my $proname=&propath($cdom,$cname);      my $proname=&propath($cdom,$cname);
     my @entries=();      my @entries=();
       my $time=time;
     if (tie(%hash,'GDBM_File',"$proname/nohist_chatroom.db",      if (tie(%hash,'GDBM_File',"$proname/nohist_chatroom.db",
     &GDBM_WRCREAT(),0640)) {      &GDBM_WRCREAT(),0640)) {
  @entries=map { $_.':'.$hash{$_} } sort keys %hash;   @entries=map { $_.':'.$hash{$_} } sort keys %hash;
  my $time=time;  
  my ($lastid)=($entries[$#entries]=~/^(\w+)\:/);   my ($lastid)=($entries[$#entries]=~/^(\w+)\:/);
  my ($thentime,$idnum)=split(/\_/,$lastid);   my ($thentime,$idnum)=split(/\_/,$lastid);
  my $newid=$time.'_000000';   my $newid=$time.'_000000';
Line 1941  sub chatadd { Line 2069  sub chatadd {
  }   }
  untie %hash;   untie %hash;
     }      }
       {
    my $hfh;
    if ($hfh=IO::File->new(">>$proname/chatroom.log")) { 
       print $hfh "$time:".&unescape($newchat)."\n";
    }
       }
 }  }
   
 sub unsub {  sub unsub {
Removed from v.1.139  
changed lines
  Added in v.1.142

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