[LON-CAPA-cvs] cvs: loncom / lond
foxr
lon-capa-cvs@mail.lon-capa.org
Tue, 27 Jul 2004 10:25:07 -0000
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--foxr1090923907
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foxr Tue Jul 27 06:25:07 2004 EDT
Modified files:
/loncom lond
Log:
Separate processing/request getting into subs get_request,
process_request. Plan: To further separate each operation into
a sub. If you are editing lond, and want to make life simpler
for everyone in the long run... take your request processing
section of the big long ugly if/else if chain in process_request
and sub it out.
--foxr1090923907
Content-Type: text/plain
Content-Disposition: attachment; filename="foxr-20040727062507.txt"
Index: loncom/lond
diff -u loncom/lond:1.211 loncom/lond:1.212
--- loncom/lond:1.211 Fri Jul 23 12:14:19 2004
+++ loncom/lond Tue Jul 27 06:25:07 2004
@@ -2,7 +2,7 @@
# The LearningOnline Network
# lond "LON Daemon" Server (port "LOND" 5663)
#
-# $Id: lond,v 1.211 2004/07/23 16:14:19 albertel Exp $
+# $Id: lond,v 1.212 2004/07/27 10:25:07 foxr Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -56,7 +56,7 @@
my $status='';
my $lastlog='';
-my $VERSION='$Revision: 1.211 $'; #' stupid emacs
+my $VERSION='$Revision: 1.212 $'; #' stupid emacs
my $remoteVERSION;
my $currenthostid;
my $currentdomainid;
@@ -148,8 +148,8 @@
#
# Statistics that are maintained and dislayed in the status line.
#
-my $Transactions; # Number of attempted transactions.
-my $Failures; # Number of transcations failed.
+my $Transactions = 0; # Number of attempted transactions.
+my $Failures = 0; # Number of transcations failed.
# ResetStatistics:
# Resets the statistics counters:
@@ -1047,259 +1047,1879 @@
my $input = <$client>;
chomp($input);
- Debug("Request = $input\n");
+ Debug("get_request: Request = $input\n");
&status('Processing '.$clientname.':'.$input);
return $input;
}
+#---------------------------------------------------------------
#
-# Decipher encoded traffic
-# Parameters:
-# input - Encoded data.
-# Returns:
-# Decoded data or undef if encryption key was not yet negotiated.
-# Implicit input:
-# cipher - This global holds the negotiated encryption key.
-#
-sub decipher {
- my ($input) = @_;
- my $output = '';
-
-
- if($cipher) {
- my($enc, $enclength, $encinput) = split(/:/, $input);
- for(my $encidx = 0; $encidx < length($encinput); $encidx += 16) {
- $output .=
- $cipher->decrypt(pack("H16", substr($encinput, $encidx, 16)));
- }
- return substr($output, 0, $enclength);
- } else {
- return undef;
- }
-}
-
+# Process a request. This sub should shrink as each action
+# gets farmed out into a separat sub that is registered
+# with the dispatch hash.
#
-# Register a command processor. This function is invoked to register a sub
-# to process a request. Once registered, the ProcessRequest sub can automatically
-# dispatch requests to an appropriate sub, and do the top level validity checking
-# as well:
-# - Is the keyword recognized.
-# - Is the proper client type attempting the request.
-# - Is the request encrypted if it has to be.
-# Parameters:
-# $request_name - Name of the request being registered.
-# This is the command request that will match
-# against the hash keywords to lookup the information
-# associated with the dispatch information.
-# $procedure - Reference to a sub to call to process the request.
-# All subs get called as follows:
-# Procedure($cmd, $tail, $replyfd, $key)
-# $cmd - the actual keyword that invoked us.
-# $tail - the tail of the request that invoked us.
-# $replyfd- File descriptor connected to the client
-# $must_encode - True if the request must be encoded to be good.
-# $client_ok - True if it's ok for a client to request this.
-# $manager_ok - True if it's ok for a manager to request this.
-# Side effects:
-# - On success, the Dispatcher hash has an entry added for the key $RequestName
-# - On failure, the program will die as it's a bad internal bug to try to
-# register a duplicate command handler.
+# Parameters:
+# user_input - The request received from the client (lonc).
+# Returns:
+# true to keep processing, false if caller should exit.
#
-sub register_handler {
- my ($request_name,
- $procedure,
- $must_encode,
- $client_ok,
- $manager_ok) = @_;
-
- # Don't allow duplication#
-
- if (defined $Dispatcher{$request_name}) {
- die "Attempting to define a duplicate request handler for $request_name\n";
+sub process_request {
+ my ($userinput) = @_; # Easier for now to break style than to
+ # fix all the userinput -> user_input.
+ my $wasenc = 0; # True if request was encrypted.
+# ------------------------------------------------------------ See if encrypted
+ if ($userinput =~ /^enc/) {
+ $userinput = decipher($userinput);
+ $wasenc=1;
+ if(!$userinput) { # Cipher not defined.
+ &Failure($client, "error: Encrypted data without negotated key");
+ return 0;
+ }
}
- # Build the client type mask:
+ Debug("process_request: $userinput\n");
- my $client_type_mask = 0;
- if($client_ok) {
- $client_type_mask |= $CLIENT_OK;
- }
- if($manager_ok) {
- $client_type_mask |= $MANAGER_OK;
- }
-
- # Enter the hash:
-
- my @entry = ($procedure, $must_encode, $client_type_mask);
-
- $Dispatcher{$request_name} = \@entry;
-
-
-}
-
-
-#------------------------------------------------------------------
-
-
-
-
-#
-# Convert an error return code from lcpasswd to a string value.
-#
-sub lcpasswdstrerror {
- my $ErrorCode = shift;
- if(($ErrorCode < 0) || ($ErrorCode > $lastpwderror)) {
- return "lcpasswd Unrecognized error return value ".$ErrorCode;
- } else {
- return $passwderrors[$ErrorCode];
- }
-}
-
-#
-# Convert an error return code from lcuseradd to a string value:
-#
-sub lcuseraddstrerror {
- my $ErrorCode = shift;
- if(($ErrorCode < 0) || ($ErrorCode > $lastadderror)) {
- return "lcuseradd - Unrecognized error code: ".$ErrorCode;
- } else {
- return $adderrors[$ErrorCode];
- }
-}
-
-# grabs exception and records it to log before exiting
-sub catchexception {
- my ($error)=@_;
- $SIG{'QUIT'}='DEFAULT';
- $SIG{__DIE__}='DEFAULT';
- &status("Catching exception");
- &logthis("<font color='red'>CRITICAL: "
- ."ABNORMAL EXIT. Child $$ for server $thisserver died through "
- ."a crash with this error msg->[$error]</font>");
- &logthis('Famous last words: '.$status.' - '.$lastlog);
- if ($client) { print $client "error: $error\n"; }
- $server->close();
- die($error);
-}
-
-sub timeout {
- &status("Handling Timeout");
- &logthis("<font color='red'>CRITICAL: TIME OUT ".$$."</font>");
- &catchexception('Timeout');
-}
-# -------------------------------- Set signal handlers to record abnormal exits
-
-$SIG{'QUIT'}=\&catchexception;
-$SIG{__DIE__}=\&catchexception;
-
-# ---------------------------------- Read loncapa_apache.conf and loncapa.conf
-&status("Read loncapa.conf and loncapa_apache.conf");
-my $perlvarref=LONCAPA::Configuration::read_conf('loncapa.conf');
-%perlvar=%{$perlvarref};
-undef $perlvarref;
-
-# ----------------------------- Make sure this process is running from user=www
-my $wwwid=getpwnam('www');
-if ($wwwid!=$<) {
- my $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
- my $subj="LON: $currenthostid User ID mismatch";
- system("echo 'User ID mismatch. lond must be run as user www.' |\
- mailto $emailto -s '$subj' > /dev/null");
- exit 1;
-}
-
-# --------------------------------------------- Check if other instance running
-
-my $pidfile="$perlvar{'lonDaemons'}/logs/lond.pid";
-
-if (-e $pidfile) {
- my $lfh=IO::File->new("$pidfile");
- my $pide=<$lfh>;
- chomp($pide);
- if (kill 0 => $pide) { die "already running"; }
-}
-
-# ------------------------------------------------------------- Read hosts file
-
-
-
-# establish SERVER socket, bind and listen.
-$server = IO::Socket::INET->new(LocalPort => $perlvar{'londPort'},
- Type => SOCK_STREAM,
- Proto => 'tcp',
- Reuse => 1,
- Listen => 10 )
- or die "making socket: $@\n";
-
-# --------------------------------------------------------- Do global variables
-
-# global variables
-
-my %children = (); # keys are current child process IDs
-
-sub REAPER { # takes care of dead children
- $SIG{CHLD} = \&REAPER;
- &status("Handling child death");
- my $pid;
- do {
- $pid = waitpid(-1,&WNOHANG());
- if (defined($children{$pid})) {
- &logthis("Child $pid died");
- delete($children{$pid});
- } elsif ($pid > 0) {
- &logthis("Unknown Child $pid died");
+# ------------------------------------------------------------- Normal commands
+# ------------------------------------------------------------------------ ping
+ if ($userinput =~ /^ping/) { # client only
+ if(isClient) {
+ print $client "$currenthostid\n";
+ } else {
+ Reply($client, "refused\n", $userinput);
}
- } while ( $pid > 0 );
- foreach my $child (keys(%children)) {
- $pid = waitpid($child,&WNOHANG());
- if ($pid > 0) {
- &logthis("Child $child - $pid looks like we missed it's death");
- delete($children{$pid});
+# ------------------------------------------------------------------------ pong
+ }elsif ($userinput =~ /^pong/) { # client only
+ if(isClient) {
+ my $reply=&reply("ping",$clientname);
+ print $client "$currenthostid:$reply\n";
+ } else {
+ Reply($client, "refused\n", $userinput);
+ }
+# ------------------------------------------------------------------------ ekey
+ } elsif ($userinput =~ /^ekey/) { # ok for both clients & mgrs
+ my $buildkey=time.$$.int(rand 100000);
+ $buildkey=~tr/1-6/A-F/;
+ $buildkey=int(rand 100000).$buildkey.int(rand 100000);
+ my $key=$currenthostid.$clientname;
+ $key=~tr/a-z/A-Z/;
+ $key=~tr/G-P/0-9/;
+ $key=~tr/Q-Z/0-9/;
+ $key=$key.$buildkey.$key.$buildkey.$key.$buildkey;
+ $key=substr($key,0,32);
+ my $cipherkey=pack("H32",$key);
+ $cipher=new IDEA $cipherkey;
+ print $client "$buildkey\n";
+# ------------------------------------------------------------------------ load
+ } elsif ($userinput =~ /^load/) { # client only
+ if (isClient) {
+ my $loadavg;
+ {
+ my $loadfile=IO::File->new('/proc/loadavg');
+ $loadavg=<$loadfile>;
+ }
+ $loadavg =~ s/\s.*//g;
+ my $loadpercent=100*$loadavg/$perlvar{'lonLoadLim'};
+ print $client "$loadpercent\n";
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# -------------------------------------------------------------------- userload
+ } elsif ($userinput =~ /^userload/) { # client only
+ if(isClient) {
+ my $userloadpercent=&userload();
+ print $client "$userloadpercent\n";
+ } else {
+ Reply($client, "refused\n", $userinput);
+
}
- }
- &status("Finished Handling child death");
-}
-
-sub HUNTSMAN { # signal handler for SIGINT
- &status("Killing children (INT)");
- local($SIG{CHLD}) = 'IGNORE'; # we're going to kill our children
- kill 'INT' => keys %children;
- &logthis("Free socket: ".shutdown($server,2)); # free up socket
- my $execdir=$perlvar{'lonDaemons'};
- unlink("$execdir/logs/lond.pid");
- &logthis("<font color='red'>CRITICAL: Shutting down</font>");
- &status("Done killing children");
- exit; # clean up with dignity
-}
-
-sub HUPSMAN { # signal handler for SIGHUP
- local($SIG{CHLD}) = 'IGNORE'; # we're going to kill our children
- &status("Killing children for restart (HUP)");
- kill 'INT' => keys %children;
- &logthis("Free socket: ".shutdown($server,2)); # free up socket
- &logthis("<font color='red'>CRITICAL: Restarting</font>");
- my $execdir=$perlvar{'lonDaemons'};
- unlink("$execdir/logs/lond.pid");
- &status("Restarting self (HUP)");
- exec("$execdir/lond"); # here we go again
-}
-
#
-# Kill off hashes that describe the host table prior to re-reading it.
-# Hashes affected are:
-# %hostid, %hostdom %hostip %hostdns.
+# Transactions requiring encryption:
#
-sub KillHostHashes {
- foreach my $key (keys %hostid) {
- delete $hostid{$key};
- }
- foreach my $key (keys %hostdom) {
- delete $hostdom{$key};
- }
- foreach my $key (keys %hostip) {
- delete $hostip{$key};
- }
- foreach my $key (keys %hostdns) {
+# ----------------------------------------------------------------- currentauth
+ } elsif ($userinput =~ /^currentauth/) {
+ if (($wasenc==1) && isClient) { # Encoded & client only.
+ my ($cmd,$udom,$uname)=split(/:/,$userinput);
+ my $result = GetAuthType($udom, $uname);
+ if($result eq "nouser") {
+ print $client "unknown_user\n";
+ }
+ else {
+ print $client "$result\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+#--------------------------------------------------------------------- pushfile
+ } elsif($userinput =~ /^pushfile/) { # encoded & manager.
+ if(($wasenc == 1) && isManager) {
+ my $cert = GetCertificate($userinput);
+ if(ValidManager($cert)) {
+ my $reply = PushFile($userinput);
+ print $client "$reply\n";
+ } else {
+ print $client "refused\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+#--------------------------------------------------------------------- reinit
+ } elsif($userinput =~ /^reinit/) { # Encoded and manager
+ if (($wasenc == 1) && isManager) {
+ my $cert = GetCertificate($userinput);
+ if(ValidManager($cert)) {
+ chomp($userinput);
+ my $reply = ReinitProcess($userinput);
+ print $client "$reply\n";
+ } else {
+ print $client "refused\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+ }
+#------------------------------------------------------------------------- edit
+ } elsif ($userinput =~ /^edit/) { # encoded and manager:
+ if(($wasenc ==1) && (isManager)) {
+ my $cert = GetCertificate($userinput);
+ if(ValidManager($cert)) {
+ my($command, $filetype, $script) = split(/:/, $userinput);
+ if (($filetype eq "hosts") || ($filetype eq "domain")) {
+ if($script ne "") {
+ Reply($client, EditFile($userinput));
+ } else {
+ Reply($client,"refused\n",$userinput);
+ }
+ } else {
+ Reply($client,"refused\n",$userinput);
+ }
+ } else {
+ Reply($client,"refused\n",$userinput);
+ }
+ } else {
+ Reply($client,"refused\n",$userinput);
+ }
+# ------------------------------------------------------------------------ auth
+ } elsif ($userinput =~ /^auth/) { # Encoded and client only.
+ if (($wasenc==1) && isClient) {
+ my ($cmd,$udom,$uname,$upass)=split(/:/,$userinput);
+ chomp($upass);
+ $upass=unescape($upass);
+ my $proname=propath($udom,$uname);
+ my $passfilename="$proname/passwd";
+ if (-e $passfilename) {
+ my $pf = IO::File->new($passfilename);
+ my $realpasswd=<$pf>;
+ chomp($realpasswd);
+ my ($howpwd,$contentpwd)=split(/:/,$realpasswd);
+ my $pwdcorrect=0;
+ if ($howpwd eq 'internal') {
+ &Debug("Internal auth");
+ $pwdcorrect=
+ (crypt($upass,$contentpwd) eq $contentpwd);
+ } elsif ($howpwd eq 'unix') {
+ &Debug("Unix auth");
+ if((getpwnam($uname))[1] eq "") { #no such user!
+ $pwdcorrect = 0;
+ } else {
+ $contentpwd=(getpwnam($uname))[1];
+ my $pwauth_path="/usr/local/sbin/pwauth";
+ unless ($contentpwd eq 'x') {
+ $pwdcorrect=
+ (crypt($upass,$contentpwd) eq
+ $contentpwd);
+ }
+
+ elsif (-e $pwauth_path) {
+ open PWAUTH, "|$pwauth_path" or
+ die "Cannot invoke authentication";
+ print PWAUTH "$uname\n$upass\n";
+ close PWAUTH;
+ $pwdcorrect=!$?;
+ }
+ }
+ } elsif ($howpwd eq 'krb4') {
+ my $null=pack("C",0);
+ unless ($upass=~/$null/) {
+ my $krb4_error = &Authen::Krb4::get_pw_in_tkt
+ ($uname,"",$contentpwd,'krbtgt',
+ $contentpwd,1,$upass);
+ if (!$krb4_error) {
+ $pwdcorrect = 1;
+ } else {
+ $pwdcorrect=0;
+ # log error if it is not a bad password
+ if ($krb4_error != 62) {
+ &logthis('krb4:'.$uname.','.
+ &Authen::Krb4::get_err_txt($Authen::Krb4::error));
+ }
+ }
+ }
+ } elsif ($howpwd eq 'krb5') {
+ my $null=pack("C",0);
+ unless ($upass=~/$null/) {
+ my $krbclient=&Authen::Krb5::parse_name($uname.'@'.$contentpwd);
+ my $krbservice="krbtgt/".$contentpwd."\@".$contentpwd;
+ my $krbserver=&Authen::Krb5::parse_name($krbservice);
+ my $credentials=&Authen::Krb5::cc_default();
+ $credentials->initialize($krbclient);
+ my $krbreturn =
+ &Authen::Krb5::get_in_tkt_with_password(
+ $krbclient,$krbserver,$upass,$credentials);
+# unless ($krbreturn) {
+# &logthis("Krb5 Error: ".
+# &Authen::Krb5::error());
+# }
+ $pwdcorrect = ($krbreturn == 1);
+ } else { $pwdcorrect=0; }
+ } elsif ($howpwd eq 'localauth') {
+ $pwdcorrect=&localauth::localauth($uname,$upass,
+ $contentpwd);
+ }
+ if ($pwdcorrect) {
+ print $client "authorized\n";
+ } else {
+ print $client "non_authorized\n";
+ }
+ } else {
+ print $client "unknown_user\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ---------------------------------------------------------------------- passwd
+ } elsif ($userinput =~ /^passwd/) { # encoded and client
+ if (($wasenc==1) && isClient) {
+ my
+ ($cmd,$udom,$uname,$upass,$npass)=split(/:/,$userinput);
+ chomp($npass);
+ $upass=&unescape($upass);
+ $npass=&unescape($npass);
+ &Debug("Trying to change password for $uname");
+ my $proname=propath($udom,$uname);
+ my $passfilename="$proname/passwd";
+ if (-e $passfilename) {
+ my $realpasswd;
+ { my $pf = IO::File->new($passfilename);
+ $realpasswd=<$pf>; }
+ chomp($realpasswd);
+ my ($howpwd,$contentpwd)=split(/:/,$realpasswd);
+ if ($howpwd eq 'internal') {
+ &Debug("internal auth");
+ if (crypt($upass,$contentpwd) eq $contentpwd) {
+ my $salt=time;
+ $salt=substr($salt,6,2);
+ my $ncpass=crypt($npass,$salt);
+ {
+ my $pf;
+ if ($pf = IO::File->new(">$passfilename")) {
+ print $pf "internal:$ncpass\n";
+ &logthis("Result of password change for $uname: pwchange_success");
+ print $client "ok\n";
+ } else {
+ &logthis("Unable to open $uname passwd to change password");
+ print $client "non_authorized\n";
+ }
+ }
+
+ } else {
+ print $client "non_authorized\n";
+ }
+ } elsif ($howpwd eq 'unix') {
+ # Unix means we have to access /etc/password
+ # one way or another.
+ # First: Make sure the current password is
+ # correct
+ &Debug("auth is unix");
+ $contentpwd=(getpwnam($uname))[1];
+ my $pwdcorrect = "0";
+ my $pwauth_path="/usr/local/sbin/pwauth";
+ unless ($contentpwd eq 'x') {
+ $pwdcorrect=
+ (crypt($upass,$contentpwd) eq $contentpwd);
+ } elsif (-e $pwauth_path) {
+ open PWAUTH, "|$pwauth_path" or
+ die "Cannot invoke authentication";
+ print PWAUTH "$uname\n$upass\n";
+ close PWAUTH;
+ &Debug("exited pwauth with $? ($uname,$upass) ");
+ $pwdcorrect=($? == 0);
+ }
+ if ($pwdcorrect) {
+ my $execdir=$perlvar{'lonDaemons'};
+ &Debug("Opening lcpasswd pipeline");
+ my $pf = IO::File->new("|$execdir/lcpasswd > $perlvar{'lonDaemons'}/logs/lcpasswd.log");
+ print $pf "$uname\n$npass\n$npass\n";
+ close $pf;
+ my $err = $?;
+ my $result = ($err>0 ? 'pwchange_failure'
+ : 'ok');
+ &logthis("Result of password change for $uname: ".
+ &lcpasswdstrerror($?));
+ print $client "$result\n";
+ } else {
+ print $client "non_authorized\n";
+ }
+ } else {
+ print $client "auth_mode_error\n";
+ }
+ } else {
+ print $client "unknown_user\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# -------------------------------------------------------------------- makeuser
+ } elsif ($userinput =~ /^makeuser/) { # encoded and client.
+ &Debug("Make user received");
+ my $oldumask=umask(0077);
+ if (($wasenc==1) && isClient) {
+ my
+ ($cmd,$udom,$uname,$umode,$npass)=split(/:/,$userinput);
+ &Debug("cmd =".$cmd." $udom =".$udom.
+ " uname=".$uname);
+ chomp($npass);
+ $npass=&unescape($npass);
+ my $proname=propath($udom,$uname);
+ my $passfilename="$proname/passwd";
+ &Debug("Password file created will be:".
+ $passfilename);
+ if (-e $passfilename) {
+ print $client "already_exists\n";
+ } elsif ($udom ne $currentdomainid) {
+ print $client "not_right_domain\n";
+ } else {
+ my @fpparts=split(/\//,$proname);
+ my $fpnow=$fpparts[0].'/'.$fpparts[1].'/'.$fpparts[2];
+ my $fperror='';
+ for (my $i=3;$i<=$#fpparts;$i++) {
+ $fpnow.='/'.$fpparts[$i];
+ unless (-e $fpnow) {
+ unless (mkdir($fpnow,0777)) {
+ $fperror="error: ".($!+0)
+ ." mkdir failed while attempting "
+ ."makeuser";
+ }
+ }
+ }
+ unless ($fperror) {
+ my $result=&make_passwd_file($uname, $umode,$npass,
+ $passfilename);
+ print $client $result;
+ } else {
+ print $client "$fperror\n";
+ }
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+ umask($oldumask);
+# -------------------------------------------------------------- changeuserauth
+ } elsif ($userinput =~ /^changeuserauth/) { # encoded & client
+ &Debug("Changing authorization");
+ if (($wasenc==1) && isClient) {
+ my
+ ($cmd,$udom,$uname,$umode,$npass)=split(/:/,$userinput);
+ chomp($npass);
+ &Debug("cmd = ".$cmd." domain= ".$udom.
+ "uname =".$uname." umode= ".$umode);
+ $npass=&unescape($npass);
+ my $proname=&propath($udom,$uname);
+ my $passfilename="$proname/passwd";
+ if ($udom ne $currentdomainid) {
+ print $client "not_right_domain\n";
+ } else {
+ my $result=&make_passwd_file($uname, $umode,$npass,
+ $passfilename);
+ print $client $result;
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ------------------------------------------------------------------------ home
+ } elsif ($userinput =~ /^home/) { # client clear or encoded
+ if(isClient) {
+ my ($cmd,$udom,$uname)=split(/:/,$userinput);
+ chomp($uname);
+ my $proname=propath($udom,$uname);
+ if (-e $proname) {
+ print $client "found\n";
+ } else {
+ print $client "not_found\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ---------------------------------------------------------------------- update
+ } elsif ($userinput =~ /^update/) { # client clear or encoded.
+ if(isClient) {
+ my ($cmd,$fname)=split(/:/,$userinput);
+ my $ownership=ishome($fname);
+ if ($ownership eq 'not_owner') {
+ if (-e $fname) {
+ my ($dev,$ino,$mode,$nlink,
+ $uid,$gid,$rdev,$size,
+ $atime,$mtime,$ctime,
+ $blksize,$blocks)=stat($fname);
+ my $now=time;
+ my $since=$now-$atime;
+ if ($since>$perlvar{'lonExpire'}) {
+ my $reply=
+ &reply("unsub:$fname","$clientname");
+ unlink("$fname");
+ } else {
+ my $transname="$fname.in.transfer";
+ my $remoteurl=
+ &reply("sub:$fname","$clientname");
+ my $response;
+ {
+ my $ua=new LWP::UserAgent;
+ my $request=new HTTP::Request('GET',"$remoteurl");
+ $response=$ua->request($request,$transname);
+ }
+ if ($response->is_error()) {
+ unlink($transname);
+ my $message=$response->status_line;
+ &logthis(
+ "LWP GET: $message for $fname ($remoteurl)");
+ } else {
+ if ($remoteurl!~/\.meta$/) {
+ my $ua=new LWP::UserAgent;
+ my $mrequest=
+ new HTTP::Request('GET',$remoteurl.'.meta');
+ my $mresponse=
+ $ua->request($mrequest,$fname.'.meta');
+ if ($mresponse->is_error()) {
+ unlink($fname.'.meta');
+ }
+ }
+ rename($transname,$fname);
+ }
+ }
+ print $client "ok\n";
+ } else {
+ print $client "not_found\n";
+ }
+ } else {
+ print $client "rejected\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# -------------------------------------- fetch a user file from a remote server
+ } elsif ($userinput =~ /^fetchuserfile/) { # Client clear or enc.
+ if(isClient) {
+ my ($cmd,$fname)=split(/:/,$userinput);
+ my ($udom,$uname,$ufile) = ($fname =~ m|^([^/]+)/([^/]+)/(.+)$|);
+ my $udir=propath($udom,$uname).'/userfiles';
+ unless (-e $udir) { mkdir($udir,0770); }
+ if (-e $udir) {
+ $ufile=~s/^[\.\~]+//;
+ my $path = $udir;
+ if ($ufile =~m|(.+)/([^/]+)$|) {
+ my @parts=split('/',$1);
+ foreach my $part (@parts) {
+ $path .= '/'.$part;
+ if ((-e $path)!=1) {
+ mkdir($path,0770);
+ }
+ }
+ }
+ my $destname=$udir.'/'.$ufile;
+ my $transname=$udir.'/'.$ufile.'.in.transit';
+ my $remoteurl='http://'.$clientip.'/userfiles/'.$fname;
+ my $response;
+ {
+ my $ua=new LWP::UserAgent;
+ my $request=new HTTP::Request('GET',"$remoteurl");
+ $response=$ua->request($request,$transname);
+ }
+ if ($response->is_error()) {
+ unlink($transname);
+ my $message=$response->status_line;
+ &logthis("LWP GET: $message for $fname ($remoteurl)");
+ print $client "failed\n";
+ } else {
+ if (!rename($transname,$destname)) {
+ &logthis("Unable to move $transname to $destname");
+ unlink($transname);
+ print $client "failed\n";
+ } else {
+ print $client "ok\n";
+ }
+ }
+ } else {
+ print $client "not_home\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+ }
+# --------------------------------------------------------- remove a user file
+ } elsif ($userinput =~ /^removeuserfile/) { # Client clear or enc.
+ if(isClient) {
+ my ($cmd,$fname)=split(/:/,$userinput);
+ my ($udom,$uname,$ufile) = ($fname =~ m|^([^/]+)/([^/]+)/(.+)$|);
+ &logthis("$udom - $uname - $ufile");
+ if ($ufile =~m|/\.\./|) {
+ # any files paths with /../ in them refuse
+ # to deal with
+ print $client "refused\n";
+ } else {
+ my $udir=propath($udom,$uname);
+ if (-e $udir) {
+ my $file=$udir.'/userfiles/'.$ufile;
+ if (-e $file) {
+ unlink($file);
+ if (-e $file) {
+ print $client "failed\n";
+ } else {
+ print $client "ok\n";
+ }
+ } else {
+ print $client "not_found\n";
+ }
+ } else {
+ print $client "not_home\n";
+ }
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+ }
+# ------------------------------------------ authenticate access to a user file
+ } elsif ($userinput =~ /^tokenauthuserfile/) { # Client only
+ if(isClient) {
+ my ($cmd,$fname,$session)=split(/:/,$userinput);
+ chomp($session);
+ my $reply='non_auth';
+ if (open(ENVIN,$perlvar{'lonIDsDir'}.'/'.
+ $session.'.id')) {
+ while (my $line=<ENVIN>) {
+ if ($line=~ m|userfile\.\Q$fname\E\=|) { $reply='ok'; }
+ }
+ close(ENVIN);
+ print $client $reply."\n";
+ } else {
+ print $client "invalid_token\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ----------------------------------------------------------------- unsubscribe
+ } elsif ($userinput =~ /^unsub/) {
+ if(isClient) {
+ my ($cmd,$fname)=split(/:/,$userinput);
+ if (-e $fname) {
+ print $client &unsub($fname,$clientip);
+ } else {
+ print $client "not_found\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ------------------------------------------------------------------- subscribe
+ } elsif ($userinput =~ /^sub/) {
+ if(isClient) {
+ print $client &subscribe($userinput,$clientip);
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ------------------------------------------------------------- current version
+ } elsif ($userinput =~ /^currentversion/) {
+ if(isClient) {
+ my ($cmd,$fname)=split(/:/,$userinput);
+ print $client ¤tversion($fname)."\n";
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ------------------------------------------------------------------------- log
+ } elsif ($userinput =~ /^log/) {
+ if(isClient) {
+ my ($cmd,$udom,$uname,$what)=split(/:/,$userinput);
+ chomp($what);
+ my $proname=propath($udom,$uname);
+ my $now=time;
+ {
+ my $hfh;
+ if ($hfh=IO::File->new(">>$proname/activity.log")) {
+ print $hfh "$now:$clientname:$what\n";
+ print $client "ok\n";
+ } else {
+ print $client "error: ".($!+0)
+ ." IO::File->new Failed "
+ ."while attempting log\n";
+ }
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ------------------------------------------------------------------------- put
+ } elsif ($userinput =~ /^put/) {
+ if(isClient) {
+ my ($cmd,$udom,$uname,$namespace,$what)
+ =split(/:/,$userinput,5);
+ $namespace=~s/\//\_/g;
+ $namespace=~s/\W//g;
+ if ($namespace ne 'roles') {
+ chomp($what);
+ my $proname=propath($udom,$uname);
+ my $now=time;
+ my @pairs=split(/\&/,$what);
+ my %hash;
+ if (tie(%hash,'GDBM_File',
+ "$proname/$namespace.db",
+ &GDBM_WRCREAT(),0640)) {
+ unless ($namespace=~/^nohist\_/) {
+ my $hfh;
+ if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { print $hfh "P:$now:$what\n"; }
+ }
+
+ foreach my $pair (@pairs) {
+ my ($key,$value)=split(/=/,$pair);
+ $hash{$key}=$value;
+ }
+ if (untie(%hash)) {
+ print $client "ok\n";
+ } else {
+ print $client "error: ".($!+0)
+ ." untie(GDBM) failed ".
+ "while attempting put\n";
+ }
+ } else {
+ print $client "error: ".($!)
+ ." tie(GDBM) Failed ".
+ "while attempting put\n";
+ }
+ } else {
+ print $client "refused\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ------------------------------------------------------------------- inc
+ } elsif ($userinput =~ /^inc:/) {
+ if(isClient) {
+ my ($cmd,$udom,$uname,$namespace,$what)
+ =split(/:/,$userinput);
+ $namespace=~s/\//\_/g;
+ $namespace=~s/\W//g;
+ if ($namespace ne 'roles') {
+ chomp($what);
+ my $proname=propath($udom,$uname);
+ my $now=time;
+ my @pairs=split(/\&/,$what);
+ my %hash;
+ if (tie(%hash,'GDBM_File',
+ "$proname/$namespace.db",
+ &GDBM_WRCREAT(),0640)) {
+ unless ($namespace=~/^nohist\_/) {
+ my $hfh;
+ if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { print $hfh "P:$now:$what\n"; }
+ }
+ foreach my $pair (@pairs) {
+ my ($key,$value)=split(/=/,$pair);
+ # We could check that we have a number...
+ if (! defined($value) || $value eq '') {
+ $value = 1;
+ }
+ $hash{$key}+=$value;
+ }
+ if (untie(%hash)) {
+ print $client "ok\n";
+ } else {
+ print $client "error: ".($!+0)
+ ." untie(GDBM) failed ".
+ "while attempting inc\n";
+ }
+ } else {
+ print $client "error: ".($!)
+ ." tie(GDBM) Failed ".
+ "while attempting inc\n";
+ }
+ } else {
+ print $client "refused\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# -------------------------------------------------------------------- rolesput
+ } elsif ($userinput =~ /^rolesput/) {
+ if(isClient) {
+ &Debug("rolesput");
+ if ($wasenc==1) {
+ my ($cmd,$exedom,$exeuser,$udom,$uname,$what)
+ =split(/:/,$userinput);
+ &Debug("cmd = ".$cmd." exedom= ".$exedom.
+ "user = ".$exeuser." udom=".$udom.
+ "what = ".$what);
+ my $namespace='roles';
+ chomp($what);
+ my $proname=propath($udom,$uname);
+ my $now=time;
+ my @pairs=split(/\&/,$what);
+ my %hash;
+ if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) {
+ {
+ my $hfh;
+ if ($hfh=IO::File->new(">>$proname/$namespace.hist")) {
+ print $hfh "P:$now:$exedom:$exeuser:$what\n";
+ }
+ }
+
+ foreach my $pair (@pairs) {
+ my ($key,$value)=split(/=/,$pair);
+ &ManagePermissions($key, $udom, $uname,
+ &GetAuthType( $udom,
+ $uname));
+ $hash{$key}=$value;
+ }
+ if (untie(%hash)) {
+ print $client "ok\n";
+ } else {
+ print $client "error: ".($!+0)
+ ." untie(GDBM) Failed ".
+ "while attempting rolesput\n";
+ }
+ } else {
+ print $client "error: ".($!+0)
+ ." tie(GDBM) Failed ".
+ "while attempting rolesput\n";
+ }
+ } else {
+ print $client "refused\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# -------------------------------------------------------------------- rolesdel
+ } elsif ($userinput =~ /^rolesdel/) {
+ if(isClient) {
+ &Debug("rolesdel");
+ if ($wasenc==1) {
+ my ($cmd,$exedom,$exeuser,$udom,$uname,$what)
+ =split(/:/,$userinput);
+ &Debug("cmd = ".$cmd." exedom= ".$exedom.
+ "user = ".$exeuser." udom=".$udom.
+ "what = ".$what);
+ my $namespace='roles';
+ chomp($what);
+ my $proname=propath($udom,$uname);
+ my $now=time;
+ my @rolekeys=split(/\&/,$what);
+ my %hash;
+ if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) {
+ {
+ my $hfh;
+ if ($hfh=IO::File->new(">>$proname/$namespace.hist")) {
+ print $hfh "D:$now:$exedom:$exeuser:$what\n";
+ }
+ }
+ foreach my $key (@rolekeys) {
+ delete $hash{$key};
+ }
+ if (untie(%hash)) {
+ print $client "ok\n";
+ } else {
+ print $client "error: ".($!+0)
+ ." untie(GDBM) Failed ".
+ "while attempting rolesdel\n";
+ }
+ } else {
+ print $client "error: ".($!+0)
+ ." tie(GDBM) Failed ".
+ "while attempting rolesdel\n";
+ }
+ } else {
+ print $client "refused\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ------------------------------------------------------------------------- get
+ } elsif ($userinput =~ /^get/) {
+ if(isClient) {
+ my ($cmd,$udom,$uname,$namespace,$what)
+ =split(/:/,$userinput);
+ $namespace=~s/\//\_/g;
+ $namespace=~s/\W//g;
+ chomp($what);
+ my @queries=split(/\&/,$what);
+ my $proname=propath($udom,$uname);
+ my $qresult='';
+ my %hash;
+ if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) {
+ for (my $i=0;$i<=$#queries;$i++) {
+ $qresult.="$hash{$queries[$i]}&";
+ }
+ if (untie(%hash)) {
+ $qresult=~s/\&$//;
+ print $client "$qresult\n";
+ } else {
+ print $client "error: ".($!+0)
+ ." untie(GDBM) Failed ".
+ "while attempting get\n";
+ }
+ } else {
+ if ($!+0 == 2) {
+ print $client "error:No such file or ".
+ "GDBM reported bad block error\n";
+ } else {
+ print $client "error: ".($!+0)
+ ." tie(GDBM) Failed ".
+ "while attempting get\n";
+ }
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ------------------------------------------------------------------------ eget
+ } elsif ($userinput =~ /^eget/) {
+ if (isClient) {
+ my ($cmd,$udom,$uname,$namespace,$what)
+ =split(/:/,$userinput);
+ $namespace=~s/\//\_/g;
+ $namespace=~s/\W//g;
+ chomp($what);
+ my @queries=split(/\&/,$what);
+ my $proname=propath($udom,$uname);
+ my $qresult='';
+ my %hash;
+ if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) {
+ for (my $i=0;$i<=$#queries;$i++) {
+ $qresult.="$hash{$queries[$i]}&";
+ }
+ if (untie(%hash)) {
+ $qresult=~s/\&$//;
+ if ($cipher) {
+ my $cmdlength=length($qresult);
+ $qresult.=" ";
+ my $encqresult='';
+ for
+ (my $encidx=0;$encidx<=$cmdlength;$encidx+=8) {
+ $encqresult.=
+ unpack("H16",
+ $cipher->encrypt(substr($qresult,$encidx,8)));
+ }
+ print $client "enc:$cmdlength:$encqresult\n";
+ } else {
+ print $client "error:no_key\n";
+ }
+ } else {
+ print $client "error: ".($!+0)
+ ." untie(GDBM) Failed ".
+ "while attempting eget\n";
+ }
+ } else {
+ print $client "error: ".($!+0)
+ ." tie(GDBM) Failed ".
+ "while attempting eget\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ------------------------------------------------------------------------- del
+ } elsif ($userinput =~ /^del/) {
+ if(isClient) {
+ my ($cmd,$udom,$uname,$namespace,$what)
+ =split(/:/,$userinput);
+ $namespace=~s/\//\_/g;
+ $namespace=~s/\W//g;
+ chomp($what);
+ my $proname=propath($udom,$uname);
+ my $now=time;
+ my @keys=split(/\&/,$what);
+ my %hash;
+ if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) {
+ unless ($namespace=~/^nohist\_/) {
+ my $hfh;
+ if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { print $hfh "D:$now:$what\n"; }
+ }
+ foreach my $key (@keys) {
+ delete($hash{$key});
+ }
+ if (untie(%hash)) {
+ print $client "ok\n";
+ } else {
+ print $client "error: ".($!+0)
+ ." untie(GDBM) Failed ".
+ "while attempting del\n";
+ }
+ } else {
+ print $client "error: ".($!+0)
+ ." tie(GDBM) Failed ".
+ "while attempting del\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ------------------------------------------------------------------------ keys
+ } elsif ($userinput =~ /^keys/) {
+ if(isClient) {
+ my ($cmd,$udom,$uname,$namespace)
+ =split(/:/,$userinput);
+ $namespace=~s/\//\_/g;
+ $namespace=~s/\W//g;
+ my $proname=propath($udom,$uname);
+ my $qresult='';
+ my %hash;
+ if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) {
+ foreach my $key (keys %hash) {
+ $qresult.="$key&";
+ }
+ if (untie(%hash)) {
+ $qresult=~s/\&$//;
+ print $client "$qresult\n";
+ } else {
+ print $client "error: ".($!+0)
+ ." untie(GDBM) Failed ".
+ "while attempting keys\n";
+ }
+ } else {
+ print $client "error: ".($!+0)
+ ." tie(GDBM) Failed ".
+ "while attempting keys\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ----------------------------------------------------------------- dumpcurrent
+ } elsif ($userinput =~ /^currentdump/) {
+ if (isClient) {
+ my ($cmd,$udom,$uname,$namespace)
+ =split(/:/,$userinput);
+ $namespace=~s/\//\_/g;
+ $namespace=~s/\W//g;
+ my $qresult='';
+ my $proname=propath($udom,$uname);
+ my %hash;
+ if (tie(%hash,'GDBM_File',
+ "$proname/$namespace.db",
+ &GDBM_READER(),0640)) {
+ # Structure of %data:
+ # $data{$symb}->{$parameter}=$value;
+ # $data{$symb}->{'v.'.$parameter}=$version;
+ # since $parameter will be unescaped, we do not
+ # have to worry about silly parameter names...
+ my %data = ();
+ while (my ($key,$value) = each(%hash)) {
+ my ($v,$symb,$param) = split(/:/,$key);
+ next if ($v eq 'version' || $symb eq 'keys');
+ next if (exists($data{$symb}) &&
+ exists($data{$symb}->{$param}) &&
+ $data{$symb}->{'v.'.$param} > $v);
+ $data{$symb}->{$param}=$value;
+ $data{$symb}->{'v.'.$param}=$v;
+ }
+ if (untie(%hash)) {
+ while (my ($symb,$param_hash) = each(%data)) {
+ while(my ($param,$value) = each (%$param_hash)){
+ next if ($param =~ /^v\./);
+ $qresult.=$symb.':'.$param.'='.$value.'&';
+ }
+ }
+ chop($qresult);
+ print $client "$qresult\n";
+ } else {
+ print $client "error: ".($!+0)
+ ." untie(GDBM) Failed ".
+ "while attempting currentdump\n";
+ }
+ } else {
+ print $client "error: ".($!+0)
+ ." tie(GDBM) Failed ".
+ "while attempting currentdump\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+ }
+# ------------------------------------------------------------------------ dump
+ } elsif ($userinput =~ /^dump/) {
+ if(isClient) {
+ my ($cmd,$udom,$uname,$namespace,$regexp)
+ =split(/:/,$userinput);
+ $namespace=~s/\//\_/g;
+ $namespace=~s/\W//g;
+ if (defined($regexp)) {
+ $regexp=&unescape($regexp);
+ } else {
+ $regexp='.';
+ }
+ my $qresult='';
+ my $proname=propath($udom,$uname);
+ my %hash;
+ if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) {
+ while (my ($key,$value) = each(%hash)) {
+ if ($regexp eq '.') {
+ $qresult.=$key.'='.$value.'&';
+ } else {
+ my $unescapeKey = &unescape($key);
+ if (eval('$unescapeKey=~/$regexp/')) {
+ $qresult.="$key=$value&";
+ }
+ }
+ }
+ if (untie(%hash)) {
+ chop($qresult);
+ print $client "$qresult\n";
+ } else {
+ print $client "error: ".($!+0)
+ ." untie(GDBM) Failed ".
+ "while attempting dump\n";
+ }
+ } else {
+ print $client "error: ".($!+0)
+ ." tie(GDBM) Failed ".
+ "while attempting dump\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ----------------------------------------------------------------------- store
+ } elsif ($userinput =~ /^store/) {
+ if(isClient) {
+ my ($cmd,$udom,$uname,$namespace,$rid,$what)
+ =split(/:/,$userinput);
+ $namespace=~s/\//\_/g;
+ $namespace=~s/\W//g;
+ if ($namespace ne 'roles') {
+ chomp($what);
+ my $proname=propath($udom,$uname);
+ my $now=time;
+ my @pairs=split(/\&/,$what);
+ my %hash;
+ if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) {
+ unless ($namespace=~/^nohist\_/) {
+ my $hfh;
+ if ($hfh=IO::File->new(">>$proname/$namespace.hist")) {
+ print $hfh "P:$now:$rid:$what\n";
+ }
+ }
+ my @previouskeys=split(/&/,$hash{"keys:$rid"});
+ my $key;
+ $hash{"version:$rid"}++;
+ my $version=$hash{"version:$rid"};
+ my $allkeys='';
+ foreach my $pair (@pairs) {
+ my ($key,$value)=split(/=/,$pair);
+ $allkeys.=$key.':';
+ $hash{"$version:$rid:$key"}=$value;
+ }
+ $hash{"$version:$rid:timestamp"}=$now;
+ $allkeys.='timestamp';
+ $hash{"$version:keys:$rid"}=$allkeys;
+ if (untie(%hash)) {
+ print $client "ok\n";
+ } else {
+ print $client "error: ".($!+0)
+ ." untie(GDBM) Failed ".
+ "while attempting store\n";
+ }
+ } else {
+ print $client "error: ".($!+0)
+ ." tie(GDBM) Failed ".
+ "while attempting store\n";
+ }
+ } else {
+ print $client "refused\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# --------------------------------------------------------------------- restore
+ } elsif ($userinput =~ /^restore/) {
+ if(isClient) {
+ my ($cmd,$udom,$uname,$namespace,$rid)
+ =split(/:/,$userinput);
+ $namespace=~s/\//\_/g;
+ $namespace=~s/\W//g;
+ chomp($rid);
+ my $proname=propath($udom,$uname);
+ my $qresult='';
+ my %hash;
+ if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) {
+ my $version=$hash{"version:$rid"};
+ $qresult.="version=$version&";
+ my $scope;
+ for ($scope=1;$scope<=$version;$scope++) {
+ my $vkeys=$hash{"$scope:keys:$rid"};
+ my @keys=split(/:/,$vkeys);
+ my $key;
+ $qresult.="$scope:keys=$vkeys&";
+ foreach $key (@keys) {
+ $qresult.="$scope:$key=".$hash{"$scope:$rid:$key"}."&";
+ }
+ }
+ if (untie(%hash)) {
+ $qresult=~s/\&$//;
+ print $client "$qresult\n";
+ } else {
+ print $client "error: ".($!+0)
+ ." untie(GDBM) Failed ".
+ "while attempting restore\n";
+ }
+ } else {
+ print $client "error: ".($!+0)
+ ." tie(GDBM) Failed ".
+ "while attempting restore\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# -------------------------------------------------------------------- chatsend
+ } elsif ($userinput =~ /^chatsend/) {
+ if(isClient) {
+ my ($cmd,$cdom,$cnum,$newpost)=split(/\:/,$userinput);
+ &chatadd($cdom,$cnum,$newpost);
+ print $client "ok\n";
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# -------------------------------------------------------------------- chatretr
+ } elsif ($userinput =~ /^chatretr/) {
+ if(isClient) {
+ my
+ ($cmd,$cdom,$cnum,$udom,$uname)=split(/\:/,$userinput);
+ my $reply='';
+ foreach (&getchat($cdom,$cnum,$udom,$uname)) {
+ $reply.=&escape($_).':';
+ }
+ $reply=~s/\:$//;
+ print $client $reply."\n";
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ------------------------------------------------------------------- querysend
+ } elsif ($userinput =~ /^querysend/) {
+ if (isClient) {
+ my ($cmd,$query,
+ $arg1,$arg2,$arg3)=split(/\:/,$userinput);
+ $query=~s/\n*$//g;
+ print $client "".
+ sqlreply("$clientname\&$query".
+ "\&$arg1"."\&$arg2"."\&$arg3")."\n";
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ------------------------------------------------------------------ queryreply
+ } elsif ($userinput =~ /^queryreply/) {
+ if(isClient) {
+ my ($cmd,$id,$reply)=split(/:/,$userinput);
+ my $store;
+ my $execdir=$perlvar{'lonDaemons'};
+ if ($store=IO::File->new(">$execdir/tmp/$id")) {
+ $reply=~s/\&/\n/g;
+ print $store $reply;
+ close $store;
+ my $store2=IO::File->new(">$execdir/tmp/$id.end");
+ print $store2 "done\n";
+ close $store2;
+ print $client "ok\n";
+ }
+ else {
+ print $client "error: ".($!+0)
+ ." IO::File->new Failed ".
+ "while attempting queryreply\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ----------------------------------------------------------------- courseidput
+ } elsif ($userinput =~ /^courseidput/) {
+ if(isClient) {
+ my ($cmd,$udom,$what)=split(/:/,$userinput);
+ chomp($what);
+ $udom=~s/\W//g;
+ my $proname=
+ "$perlvar{'lonUsersDir'}/$udom/nohist_courseids";
+ my $now=time;
+ my @pairs=split(/\&/,$what);
+ my %hash;
+ if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_WRCREAT(),0640)) {
+ foreach my $pair (@pairs) {
+ my ($key,$descr,$inst_code)=split(/=/,$pair);
+ $hash{$key}=$descr.':'.$inst_code.':'.$now;
+ }
+ if (untie(%hash)) {
+ print $client "ok\n";
+ } else {
+ print $client "error: ".($!+0)
+ ." untie(GDBM) Failed ".
+ "while attempting courseidput\n";
+ }
+ } else {
+ print $client "error: ".($!+0)
+ ." tie(GDBM) Failed ".
+ "while attempting courseidput\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ---------------------------------------------------------------- courseiddump
+ } elsif ($userinput =~ /^courseiddump/) {
+ if(isClient) {
+ my ($cmd,$udom,$since,$description)
+ =split(/:/,$userinput);
+ if (defined($description)) {
+ $description=&unescape($description);
+ } else {
+ $description='.';
+ }
+ unless (defined($since)) { $since=0; }
+ my $qresult='';
+ my $proname=
+ "$perlvar{'lonUsersDir'}/$udom/nohist_courseids";
+ my %hash;
+ if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_READER(),0640)) {
+ while (my ($key,$value) = each(%hash)) {
+ my ($descr,$lasttime,$inst_code);
+ if ($value =~ m/^([^\:]*):([^\:]*):(\d+)$/) {
+ ($descr,$inst_code,$lasttime)=($1,$2,$3);
+ } else {
+ ($descr,$lasttime) = split(/\:/,$value);
+ }
+ if ($lasttime<$since) { next; }
+ if ($description eq '.') {
+ $qresult.=$key.'='.$descr.':'.$inst_code.'&';
+ } else {
+ my $unescapeVal = &unescape($descr);
+ if (eval('$unescapeVal=~/\Q$description\E/i')) {
+ $qresult.=$key.'='.$descr.':'.$inst_code.'&';
+ }
+ }
+ }
+ if (untie(%hash)) {
+ chop($qresult);
+ print $client "$qresult\n";
+ } else {
+ print $client "error: ".($!+0)
+ ." untie(GDBM) Failed ".
+ "while attempting courseiddump\n";
+ }
+ } else {
+ print $client "error: ".($!+0)
+ ." tie(GDBM) Failed ".
+ "while attempting courseiddump\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ----------------------------------------------------------------------- idput
+ } elsif ($userinput =~ /^idput/) {
+ if(isClient) {
+ my ($cmd,$udom,$what)=split(/:/,$userinput);
+ chomp($what);
+ $udom=~s/\W//g;
+ my $proname="$perlvar{'lonUsersDir'}/$udom/ids";
+ my $now=time;
+ my @pairs=split(/\&/,$what);
+ my %hash;
+ if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_WRCREAT(),0640)) {
+ {
+ my $hfh;
+ if ($hfh=IO::File->new(">>$proname.hist")) {
+ print $hfh "P:$now:$what\n";
+ }
+ }
+ foreach my $pair (@pairs) {
+ my ($key,$value)=split(/=/,$pair);
+ $hash{$key}=$value;
+ }
+ if (untie(%hash)) {
+ print $client "ok\n";
+ } else {
+ print $client "error: ".($!+0)
+ ." untie(GDBM) Failed ".
+ "while attempting idput\n";
+ }
+ } else {
+ print $client "error: ".($!+0)
+ ." tie(GDBM) Failed ".
+ "while attempting idput\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ----------------------------------------------------------------------- idget
+ } elsif ($userinput =~ /^idget/) {
+ if(isClient) {
+ my ($cmd,$udom,$what)=split(/:/,$userinput);
+ chomp($what);
+ $udom=~s/\W//g;
+ my $proname="$perlvar{'lonUsersDir'}/$udom/ids";
+ my @queries=split(/\&/,$what);
+ my $qresult='';
+ my %hash;
+ if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_READER(),0640)) {
+ for (my $i=0;$i<=$#queries;$i++) {
+ $qresult.="$hash{$queries[$i]}&";
+ }
+ if (untie(%hash)) {
+ $qresult=~s/\&$//;
+ print $client "$qresult\n";
+ } else {
+ print $client "error: ".($!+0)
+ ." untie(GDBM) Failed ".
+ "while attempting idget\n";
+ }
+ } else {
+ print $client "error: ".($!+0)
+ ." tie(GDBM) Failed ".
+ "while attempting idget\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ---------------------------------------------------------------------- tmpput
+ } elsif ($userinput =~ /^tmpput/) {
+ if(isClient) {
+ my ($cmd,$what)=split(/:/,$userinput);
+ my $store;
+ $tmpsnum++;
+ my $id=$$.'_'.$clientip.'_'.$tmpsnum;
+ $id=~s/\W/\_/g;
+ $what=~s/\n//g;
+ my $execdir=$perlvar{'lonDaemons'};
+ if ($store=IO::File->new(">$execdir/tmp/$id.tmp")) {
+ print $store $what;
+ close $store;
+ print $client "$id\n";
+ }
+ else {
+ print $client "error: ".($!+0)
+ ."IO::File->new Failed ".
+ "while attempting tmpput\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+
+# ---------------------------------------------------------------------- tmpget
+ } elsif ($userinput =~ /^tmpget/) {
+ if(isClient) {
+ my ($cmd,$id)=split(/:/,$userinput);
+ chomp($id);
+ $id=~s/\W/\_/g;
+ my $store;
+ my $execdir=$perlvar{'lonDaemons'};
+ if ($store=IO::File->new("$execdir/tmp/$id.tmp")) {
+ my $reply=<$store>;
+ print $client "$reply\n";
+ close $store;
+ }
+ else {
+ print $client "error: ".($!+0)
+ ."IO::File->new Failed ".
+ "while attempting tmpget\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ---------------------------------------------------------------------- tmpdel
+ } elsif ($userinput =~ /^tmpdel/) {
+ if(isClient) {
+ my ($cmd,$id)=split(/:/,$userinput);
+ chomp($id);
+ $id=~s/\W/\_/g;
+ my $execdir=$perlvar{'lonDaemons'};
+ if (unlink("$execdir/tmp/$id.tmp")) {
+ print $client "ok\n";
+ } else {
+ print $client "error: ".($!+0)
+ ."Unlink tmp Failed ".
+ "while attempting tmpdel\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ----------------------------------------- portfolio directory list (portls)
+ } elsif ($userinput =~ /^portls/) {
+ if(isClient) {
+ my ($cmd,$uname,$udom)=split(/:/,$userinput);
+ my $udir=propath($udom,$uname).'/userfiles/portfolio';
+ my $dirLine='';
+ my $dirContents='';
+ if (opendir(LSDIR,$udir.'/')){
+ while ($dirLine = readdir(LSDIR)){
+ $dirContents = $dirContents.$dirLine.'<br />';
+ }
+ } else {
+ $dirContents = "No directory found\n";
+ }
+ print $client $dirContents."\n";
+ } else {
+ Reply($client, "refused\n", $userinput);
+ }
+# -------------------------------------------------------------------------- ls
+ } elsif ($userinput =~ /^ls/) {
+ if(isClient) {
+ my $obs;
+ my $rights;
+ my ($cmd,$ulsdir)=split(/:/,$userinput);
+ my $ulsout='';
+ my $ulsfn;
+ if (-e $ulsdir) {
+ if(-d $ulsdir) {
+ if (opendir(LSDIR,$ulsdir)) {
+ while ($ulsfn=readdir(LSDIR)) {
+ undef $obs, $rights;
+ my @ulsstats=stat($ulsdir.'/'.$ulsfn);
+ #We do some obsolete checking here
+ if(-e $ulsdir.'/'.$ulsfn.".meta") {
+ open(FILE, $ulsdir.'/'.$ulsfn.".meta");
+ my @obsolete=<FILE>;
+ foreach my $obsolete (@obsolete) {
+ if($obsolete =~ m|(<obsolete>)(on)|) { $obs = 1; }
+ if($obsolete =~ m|(<copyright>)(default)|) { $rights = 1; }
+ }
+ }
+ $ulsout.=$ulsfn.'&'.join('&',@ulsstats);
+ if($obs eq '1') { $ulsout.="&1"; }
+ else { $ulsout.="&0"; }
+ if($rights eq '1') { $ulsout.="&1:"; }
+ else { $ulsout.="&0:"; }
+ }
+ closedir(LSDIR);
+ }
+ } else {
+ my @ulsstats=stat($ulsdir);
+ $ulsout.=$ulsfn.'&'.join('&',@ulsstats).':';
+ }
+ } else {
+ $ulsout='no_such_dir';
+ }
+ if ($ulsout eq '') { $ulsout='empty'; }
+ print $client "$ulsout\n";
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ----------------------------------------------------------------- setannounce
+ } elsif ($userinput =~ /^setannounce/) {
+ if (isClient) {
+ my ($cmd,$announcement)=split(/:/,$userinput);
+ chomp($announcement);
+ $announcement=&unescape($announcement);
+ if (my $store=IO::File->new('>'.$perlvar{'lonDocRoot'}.
+ '/announcement.txt')) {
+ print $store $announcement;
+ close $store;
+ print $client "ok\n";
+ } else {
+ print $client "error: ".($!+0)."\n";
+ }
+ } else {
+ Reply($client, "refused\n", $userinput);
+
+ }
+# ------------------------------------------------------------------ Hanging up
+ } elsif (($userinput =~ /^exit/) ||
+ ($userinput =~ /^init/)) { # no restrictions.
+ &logthis(
+ "Client $clientip ($clientname) hanging up: $userinput");
+ print $client "bye\n";
+ $client->shutdown(2); # shutdown the socket forcibly.
+ $client->close();
+ return 0;
+
+# ---------------------------------- set current host/domain
+ } elsif ($userinput =~ /^sethost:/) {
+ if (isClient) {
+ print $client &sethost($userinput)."\n";
+ } else {
+ print $client "refused\n";
+ }
+#---------------------------------- request file (?) version.
+ } elsif ($userinput =~/^version:/) {
+ if (isClient) {
+ print $client &version($userinput)."\n";
+ } else {
+ print $client "refused\n";
+ }
+#------------------------------- is auto-enrollment enabled?
+ } elsif ($userinput =~/^autorun:/) {
+ if (isClient) {
+ my ($cmd,$cdom) = split(/:/,$userinput);
+ my $outcome = &localenroll::run($cdom);
+ print $client "$outcome\n";
+ } else {
+ print $client "0\n";
+ }
+#------------------------------- get official sections (for auto-enrollment).
+ } elsif ($userinput =~/^autogetsections:/) {
+ if (isClient) {
+ my ($cmd,$coursecode,$cdom)=split(/:/,$userinput);
+ my @secs = &localenroll::get_sections($coursecode,$cdom);
+ my $seclist = &escape(join(':',@secs));
+ print $client "$seclist\n";
+ } else {
+ print $client "refused\n";
+ }
+#----------------------- validate owner of new course section (for auto-enrollment).
+ } elsif ($userinput =~/^autonewcourse:/) {
+ if (isClient) {
+ my ($cmd,$inst_course_id,$owner,$cdom)=split(/:/,$userinput);
+ my $outcome = &localenroll::new_course($inst_course_id,$owner,$cdom);
+ print $client "$outcome\n";
+ } else {
+ print $client "refused\n";
+ }
+#-------------- validate course section in schedule of classes (for auto-enrollment).
+ } elsif ($userinput =~/^autovalidatecourse:/) {
+ if (isClient) {
+ my ($cmd,$inst_course_id,$cdom)=split(/:/,$userinput);
+ my $outcome=&localenroll::validate_courseID($inst_course_id,$cdom);
+ print $client "$outcome\n";
+ } else {
+ print $client "refused\n";
+ }
+#--------------------------- create password for new user (for auto-enrollment).
+ } elsif ($userinput =~/^autocreatepassword:/) {
+ if (isClient) {
+ my ($cmd,$authparam,$cdom)=split(/:/,$userinput);
+ my ($create_passwd,$authchk);
+ ($authparam,$create_passwd,$authchk) = &localenroll::create_password($authparam,$cdom);
+ print $client &escape($authparam.':'.$create_passwd.':'.$authchk)."\n";
+ } else {
+ print $client "refused\n";
+ }
+#--------------------------- read and remove temporary files (for auto-enrollment).
+ } elsif ($userinput =~/^autoretrieve:/) {
+ if (isClient) {
+ my ($cmd,$filename) = split(/:/,$userinput);
+ my $source = $perlvar{'lonDaemons'}.'/tmp/'.$filename;
+ if ( (-e $source) && ($filename ne '') ) {
+ my $reply = '';
+ if (open(my $fh,$source)) {
+ while (<$fh>) {
+ chomp($_);
+ $_ =~ s/^\s+//g;
+ $_ =~ s/\s+$//g;
+ $reply .= $_;
+ }
+ close($fh);
+ print $client &escape($reply)."\n";
+# unlink($source);
+ } else {
+ print $client "error\n";
+ }
+ } else {
+ print $client "error\n";
+ }
+ } else {
+ print $client "refused\n";
+ }
+#--------------------- read and retrieve institutional code format (for support form).
+ } elsif ($userinput =~/^autoinstcodeformat:/) {
+ if (isClient) {
+ my $reply;
+ my($cmd,$cdom,$course) = split(/:/,$userinput);
+ my @pairs = split/\&/,$course;
+ my %instcodes = ();
+ my %codes = ();
+ my @codetitles = ();
+ my %cat_titles = ();
+ my %cat_order = ();
+ foreach (@pairs) {
+ my ($key,$value) = split/=/,$_;
+ $instcodes{&unescape($key)} = &unescape($value);
+ }
+ my $formatreply = &localenroll::instcode_format($cdom,\%instcodes,\%codes,\@codetitles,\%cat_titles,\%cat_order);
+ if ($formatreply eq 'ok') {
+ my $codes_str = &hash2str(%codes);
+ my $codetitles_str = &array2str(@codetitles);
+ my $cat_titles_str = &hash2str(%cat_titles);
+ my $cat_order_str = &hash2str(%cat_order);
+ print $client $codes_str.':'.$codetitles_str.':'.$cat_titles_str.':'.$cat_order_str."\n";
+ }
+ } else {
+ print $client "refused\n";
+ }
+# ------------------------------------------------------------- unknown command
+
+ } else {
+ # unknown command
+ print $client "unknown_cmd\n";
+ }
+# -------------------------------------------------------------------- complete
+ Debug("process_request - returning 1");
+ return 1;
+}
+#
+# Decipher encoded traffic
+# Parameters:
+# input - Encoded data.
+# Returns:
+# Decoded data or undef if encryption key was not yet negotiated.
+# Implicit input:
+# cipher - This global holds the negotiated encryption key.
+#
+sub decipher {
+ my ($input) = @_;
+ my $output = '';
+
+
+ if($cipher) {
+ my($enc, $enclength, $encinput) = split(/:/, $input);
+ for(my $encidx = 0; $encidx < length($encinput); $encidx += 16) {
+ $output .=
+ $cipher->decrypt(pack("H16", substr($encinput, $encidx, 16)));
+ }
+ return substr($output, 0, $enclength);
+ } else {
+ return undef;
+ }
+}
+
+#
+# Register a command processor. This function is invoked to register a sub
+# to process a request. Once registered, the ProcessRequest sub can automatically
+# dispatch requests to an appropriate sub, and do the top level validity checking
+# as well:
+# - Is the keyword recognized.
+# - Is the proper client type attempting the request.
+# - Is the request encrypted if it has to be.
+# Parameters:
+# $request_name - Name of the request being registered.
+# This is the command request that will match
+# against the hash keywords to lookup the information
+# associated with the dispatch information.
+# $procedure - Reference to a sub to call to process the request.
+# All subs get called as follows:
+# Procedure($cmd, $tail, $replyfd, $key)
+# $cmd - the actual keyword that invoked us.
+# $tail - the tail of the request that invoked us.
+# $replyfd- File descriptor connected to the client
+# $must_encode - True if the request must be encoded to be good.
+# $client_ok - True if it's ok for a client to request this.
+# $manager_ok - True if it's ok for a manager to request this.
+# Side effects:
+# - On success, the Dispatcher hash has an entry added for the key $RequestName
+# - On failure, the program will die as it's a bad internal bug to try to
+# register a duplicate command handler.
+#
+sub register_handler {
+ my ($request_name,$procedure,$must_encode, $client_ok,$manager_ok) = @_;
+
+ # Don't allow duplication#
+
+ if (defined $Dispatcher{$request_name}) {
+ die "Attempting to define a duplicate request handler for $request_name\n";
+ }
+ # Build the client type mask:
+
+ my $client_type_mask = 0;
+ if($client_ok) {
+ $client_type_mask |= $CLIENT_OK;
+ }
+ if($manager_ok) {
+ $client_type_mask |= $MANAGER_OK;
+ }
+
+ # Enter the hash:
+
+ my @entry = ($procedure, $must_encode, $client_type_mask);
+
+ $Dispatcher{$request_name} = \@entry;
+
+
+}
+
+
+#------------------------------------------------------------------
+
+
+
+
+#
+# Convert an error return code from lcpasswd to a string value.
+#
+sub lcpasswdstrerror {
+ my $ErrorCode = shift;
+ if(($ErrorCode < 0) || ($ErrorCode > $lastpwderror)) {
+ return "lcpasswd Unrecognized error return value ".$ErrorCode;
+ } else {
+ return $passwderrors[$ErrorCode];
+ }
+}
+
+#
+# Convert an error return code from lcuseradd to a string value:
+#
+sub lcuseraddstrerror {
+ my $ErrorCode = shift;
+ if(($ErrorCode < 0) || ($ErrorCode > $lastadderror)) {
+ return "lcuseradd - Unrecognized error code: ".$ErrorCode;
+ } else {
+ return $adderrors[$ErrorCode];
+ }
+}
+
+# grabs exception and records it to log before exiting
+sub catchexception {
+ my ($error)=@_;
+ $SIG{'QUIT'}='DEFAULT';
+ $SIG{__DIE__}='DEFAULT';
+ &status("Catching exception");
+ &logthis("<font color='red'>CRITICAL: "
+ ."ABNORMAL EXIT. Child $$ for server $thisserver died through "
+ ."a crash with this error msg->[$error]</font>");
+ &logthis('Famous last words: '.$status.' - '.$lastlog);
+ if ($client) { print $client "error: $error\n"; }
+ $server->close();
+ die($error);
+}
+
+sub timeout {
+ &status("Handling Timeout");
+ &logthis("<font color='red'>CRITICAL: TIME OUT ".$$."</font>");
+ &catchexception('Timeout');
+}
+# -------------------------------- Set signal handlers to record abnormal exits
+
+$SIG{'QUIT'}=\&catchexception;
+$SIG{__DIE__}=\&catchexception;
+
+# ---------------------------------- Read loncapa_apache.conf and loncapa.conf
+&status("Read loncapa.conf and loncapa_apache.conf");
+my $perlvarref=LONCAPA::Configuration::read_conf('loncapa.conf');
+%perlvar=%{$perlvarref};
+undef $perlvarref;
+
+# ----------------------------- Make sure this process is running from user=www
+my $wwwid=getpwnam('www');
+if ($wwwid!=$<) {
+ my $emailto="$perlvar{'lonAdmEMail'},$perlvar{'lonSysEMail'}";
+ my $subj="LON: $currenthostid User ID mismatch";
+ system("echo 'User ID mismatch. lond must be run as user www.' |\
+ mailto $emailto -s '$subj' > /dev/null");
+ exit 1;
+}
+
+# --------------------------------------------- Check if other instance running
+
+my $pidfile="$perlvar{'lonDaemons'}/logs/lond.pid";
+
+if (-e $pidfile) {
+ my $lfh=IO::File->new("$pidfile");
+ my $pide=<$lfh>;
+ chomp($pide);
+ if (kill 0 => $pide) { die "already running"; }
+}
+
+# ------------------------------------------------------------- Read hosts file
+
+
+
+# establish SERVER socket, bind and listen.
+$server = IO::Socket::INET->new(LocalPort => $perlvar{'londPort'},
+ Type => SOCK_STREAM,
+ Proto => 'tcp',
+ Reuse => 1,
+ Listen => 10 )
+ or die "making socket: $@\n";
+
+# --------------------------------------------------------- Do global variables
+
+# global variables
+
+my %children = (); # keys are current child process IDs
+
+sub REAPER { # takes care of dead children
+ $SIG{CHLD} = \&REAPER;
+ &status("Handling child death");
+ my $pid;
+ do {
+ $pid = waitpid(-1,&WNOHANG());
+ if (defined($children{$pid})) {
+ &logthis("Child $pid died");
+ delete($children{$pid});
+ } elsif ($pid > 0) {
+ &logthis("Unknown Child $pid died");
+ }
+ } while ( $pid > 0 );
+ foreach my $child (keys(%children)) {
+ $pid = waitpid($child,&WNOHANG());
+ if ($pid > 0) {
+ &logthis("Child $child - $pid looks like we missed it's death");
+ delete($children{$pid});
+ }
+ }
+ &status("Finished Handling child death");
+}
+
+sub HUNTSMAN { # signal handler for SIGINT
+ &status("Killing children (INT)");
+ local($SIG{CHLD}) = 'IGNORE'; # we're going to kill our children
+ kill 'INT' => keys %children;
+ &logthis("Free socket: ".shutdown($server,2)); # free up socket
+ my $execdir=$perlvar{'lonDaemons'};
+ unlink("$execdir/logs/lond.pid");
+ &logthis("<font color='red'>CRITICAL: Shutting down</font>");
+ &status("Done killing children");
+ exit; # clean up with dignity
+}
+
+sub HUPSMAN { # signal handler for SIGHUP
+ local($SIG{CHLD}) = 'IGNORE'; # we're going to kill our children
+ &status("Killing children for restart (HUP)");
+ kill 'INT' => keys %children;
+ &logthis("Free socket: ".shutdown($server,2)); # free up socket
+ &logthis("<font color='red'>CRITICAL: Restarting</font>");
+ my $execdir=$perlvar{'lonDaemons'};
+ unlink("$execdir/logs/lond.pid");
+ &status("Restarting self (HUP)");
+ exec("$execdir/lond"); # here we go again
+}
+
+#
+# Kill off hashes that describe the host table prior to re-reading it.
+# Hashes affected are:
+# %hostid, %hostdom %hostip %hostdns.
+#
+sub KillHostHashes {
+ foreach my $key (keys %hostid) {
+ delete $hostid{$key};
+ }
+ foreach my $key (keys %hostdom) {
+ delete $hostdom{$key};
+ }
+ foreach my $key (keys %hostip) {
+ delete $hostip{$key};
+ }
+ foreach my $key (keys %hostdns) {
delete $hostdns{$key};
}
}
@@ -1396,7 +3016,8 @@
}
}
sleep 5;
- $SIG{ALRM} = sub { die "timeout" };
+ $SIG{ALRM} = sub { Debug("timeout");
+ die "timeout"; };
$SIG{__DIE__} = 'DEFAULT';
&status("Checking on the children (waiting for reports)");
foreach (sort keys %children) {
@@ -1448,12 +3069,44 @@
# request - Original request from client.
#
sub Reply {
+ alarm(120);
+ my $fd = shift;
+ my $reply = shift;
+ my $request = shift;
my ($fd, $reply, $request) = @_;
-
print $fd $reply;
Debug("Request was $request Reply was $reply");
+ $Transactions++;
+ alarm(0);
+
+
+}
+
+
+#
+# Sub to report a failure.
+# This function:
+# - Increments the failure statistic counters.
+# - Invokes Reply to send the error message to the client.
+# Parameters:
+# fd - File descriptor open on the client
+# reply - Reply text to emit.
+# request - The original request message (used by Reply
+# to debug if that's enabled.
+# Implicit outputs:
+# $Failures- The number of failures is incremented.
+# Reply (invoked here) sends a message to the
+# client:
+#
+sub Failure {
+ my $fd = shift;
+ my $reply = shift;
+ my $request = shift;
+
+ $Failures++;
+ Reply($fd, $reply, $request); # That's simple eh?
}
# ------------------------------------------------------------------ Log status
@@ -1567,1933 +3220,323 @@
}
} else {
$answer='self_reply';
- }
- return $answer;
-}
-
-# -------------------------------------------------------------- Talk to lonsql
-
-sub sqlreply {
- my ($cmd)=@_;
- my $answer=subsqlreply($cmd);
- if ($answer eq 'con_lost') { $answer=subsqlreply($cmd); }
- return $answer;
-}
-
-sub subsqlreply {
- my ($cmd)=@_;
- my $unixsock="mysqlsock";
- my $peerfile="$perlvar{'lonSockDir'}/$unixsock";
- my $sclient=IO::Socket::UNIX->new(Peer =>"$peerfile",
- Type => SOCK_STREAM,
- Timeout => 10)
- or return "con_lost";
- print $sclient "$cmd\n";
- my $answer=<$sclient>;
- chomp($answer);
- if (!$answer) { $answer="con_lost"; }
- return $answer;
-}
-
-# -------------------------------------------- Return path to profile directory
-
-sub propath {
- my ($udom,$uname)=@_;
- $udom=~s/\W//g;
- $uname=~s/\W//g;
- my $subdir=$uname.'__';
- $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
- my $proname="$perlvar{'lonUsersDir'}/$udom/$subdir/$uname";
- return $proname;
-}
-
-# --------------------------------------- Is this the home server of an author?
-
-sub ishome {
- my $author=shift;
- $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
- my ($udom,$uname)=split(/\//,$author);
- my $proname=propath($udom,$uname);
- if (-e $proname) {
- return 'owner';
- } else {
- return 'not_owner';
- }
-}
-
-# ======================================================= Continue main program
-# ---------------------------------------------------- Fork once and dissociate
-
-my $fpid=fork;
-exit if $fpid;
-die "Couldn't fork: $!" unless defined ($fpid);
-
-POSIX::setsid() or die "Can't start new session: $!";
-
-# ------------------------------------------------------- Write our PID on disk
-
-my $execdir=$perlvar{'lonDaemons'};
-open (PIDSAVE,">$execdir/logs/lond.pid");
-print PIDSAVE "$$\n";
-close(PIDSAVE);
-&logthis("<font color='red'>CRITICAL: ---------- Starting ----------</font>");
-&status('Starting');
-
-
-
-# ----------------------------------------------------- Install signal handlers
-
-
-$SIG{CHLD} = \&REAPER;
-$SIG{INT} = $SIG{TERM} = \&HUNTSMAN;
-$SIG{HUP} = \&HUPSMAN;
-$SIG{USR1} = \&checkchildren;
-$SIG{USR2} = \&UpdateHosts;
-
-# Read the host hashes:
-
-ReadHostTable;
-
-# --------------------------------------------------------------
-# Accept connections. When a connection comes in, it is validated
-# and if good, a child process is created to process transactions
-# along the connection.
-
-while (1) {
- &status('Starting accept');
- $client = $server->accept() or next;
- &status('Accepted '.$client.' off to spawn');
- make_new_child($client);
- &status('Finished spawning');
-}
-
-sub make_new_child {
- my $pid;
-# my $cipher; # Now global
- my $sigset;
-
- $client = shift;
- &status('Starting new child '.$client);
- &logthis('<font color="green"> Attempting to start child ('.$client.
- ")</font>");
- # block signal for fork
- $sigset = POSIX::SigSet->new(SIGINT);
- sigprocmask(SIG_BLOCK, $sigset)
- or die "Can't block SIGINT for fork: $!\n";
-
- die "fork: $!" unless defined ($pid = fork);
-
- $client->sockopt(SO_KEEPALIVE, 1); # Enable monitoring of
- # connection liveness.
-
- #
- # Figure out who we're talking to so we can record the peer in
- # the pid hash.
- #
- my $caller = getpeername($client);
- my ($port,$iaddr);
- if (defined($caller) && length($caller) > 0) {
- ($port,$iaddr)=unpack_sockaddr_in($caller);
- } else {
- &logthis("Unable to determine who caller was, getpeername returned nothing");
- }
- if (defined($iaddr)) {
- $clientip = inet_ntoa($iaddr);
- Debug("Connected with $clientip");
- $clientdns = gethostbyaddr($iaddr, AF_INET);
- Debug("Connected with $clientdns by name");
- } else {
- &logthis("Unable to determine clientip");
- $clientip='Unavailable';
- }
-
- if ($pid) {
- # Parent records the child's birth and returns.
- sigprocmask(SIG_UNBLOCK, $sigset)
- or die "Can't unblock SIGINT for fork: $!\n";
- $children{$pid} = $clientip;
- &status('Started child '.$pid);
- return;
- } else {
- # Child can *not* return from this subroutine.
- $SIG{INT} = 'DEFAULT'; # make SIGINT kill us as it did before
- $SIG{CHLD} = 'DEFAULT'; #make this default so that pwauth returns
- #don't get intercepted
- $SIG{USR1}= \&logstatus;
- $SIG{ALRM}= \&timeout;
- $lastlog='Forked ';
- $status='Forked';
+ }
+ return $answer;
+}
- # unblock signals
- sigprocmask(SIG_UNBLOCK, $sigset)
- or die "Can't unblock SIGINT for fork: $!\n";
+# -------------------------------------------------------------- Talk to lonsql
-# my $tmpsnum=0; # Now global
-#---------------------------------------------------- kerberos 5 initialization
- &Authen::Krb5::init_context();
- &Authen::Krb5::init_ets();
+sub sqlreply {
+ my ($cmd)=@_;
+ my $answer=subsqlreply($cmd);
+ if ($answer eq 'con_lost') { $answer=subsqlreply($cmd); }
+ return $answer;
+}
- &status('Accepted connection');
-# =============================================================================
- # do something with the connection
-# -----------------------------------------------------------------------------
- # see if we know client and 'check' for spoof IP by ineffective challenge
+sub subsqlreply {
+ my ($cmd)=@_;
+ my $unixsock="mysqlsock";
+ my $peerfile="$perlvar{'lonSockDir'}/$unixsock";
+ my $sclient=IO::Socket::UNIX->new(Peer =>"$peerfile",
+ Type => SOCK_STREAM,
+ Timeout => 10)
+ or return "con_lost";
+ print $sclient "$cmd\n";
+ my $answer=<$sclient>;
+ chomp($answer);
+ if (!$answer) { $answer="con_lost"; }
+ return $answer;
+}
- ReadManagerTable; # May also be a manager!!
-
- my $clientrec=($hostid{$clientip} ne undef);
- my $ismanager=($managers{$clientip} ne undef);
- $clientname = "[unknonwn]";
- if($clientrec) { # Establish client type.
- $ConnectionType = "client";
- $clientname = $hostid{$clientip};
- if($ismanager) {
- $ConnectionType = "both";
- }
- } else {
- $ConnectionType = "manager";
- $clientname = $managers{$clientip};
- }
- my $clientok;
+# -------------------------------------------- Return path to profile directory
- if ($clientrec || $ismanager) {
- &status("Waiting for init from $clientip $clientname");
- &logthis('<font color="yellow">INFO: Connection, '.
- $clientip.
- " ($clientname) connection type = $ConnectionType </font>" );
- &status("Connecting $clientip ($clientname))");
- my $remotereq=<$client>;
- chomp($remotereq);
- Debug("Got init: $remotereq");
- my $inikeyword = split(/:/, $remotereq);
- if ($remotereq =~ /^init/) {
- &sethost("sethost:$perlvar{'lonHostID'}");
- #
- # If the remote is attempting a local init... give that a try:
- #
- my ($i, $inittype) = split(/:/, $remotereq);
+sub propath {
+ my ($udom,$uname)=@_;
+ $udom=~s/\W//g;
+ $uname=~s/\W//g;
+ my $subdir=$uname.'__';
+ $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
+ my $proname="$perlvar{'lonUsersDir'}/$udom/$subdir/$uname";
+ return $proname;
+}
- # If the connection type is ssl, but I didn't get my
- # certificate files yet, then I'll drop back to
- # insecure (if allowed).
-
- if($inittype eq "ssl") {
- my ($ca, $cert) = lonssl::CertificateFile;
- my $kfile = lonssl::KeyFile;
- if((!$ca) ||
- (!$cert) ||
- (!$kfile)) {
- $inittype = ""; # This forces insecure attempt.
- &logthis("<font color=\"blue\"> Certificates not "
- ."installed -- trying insecure auth</font>");
- }
- else { # SSL certificates are in place so
- } # Leave the inittype alone.
- }
+# --------------------------------------- Is this the home server of an author?
- if($inittype eq "local") {
- my $key = LocalConnection($client, $remotereq);
- if($key) {
- Debug("Got local key $key");
- $clientok = 1;
- my $cipherkey = pack("H32", $key);
- $cipher = new IDEA($cipherkey);
- print $client "ok:local\n";
- &logthis('<font color="green"'
- . "Successful local authentication </font>");
- $keymode = "local"
- } else {
- Debug("Failed to get local key");
- $clientok = 0;
- shutdown($client, 3);
- close $client;
- }
- } elsif ($inittype eq "ssl") {
- my $key = SSLConnection($client);
- if ($key) {
- $clientok = 1;
- my $cipherkey = pack("H32", $key);
- $cipher = new IDEA($cipherkey);
- &logthis('<font color="green">'
- ."Successfull ssl authentication with $clientname </font>");
- $keymode = "ssl";
-
- } else {
- $clientok = 0;
- close $client;
- }
-
- } else {
- my $ok = InsecureConnection($client);
- if($ok) {
- $clientok = 1;
- &logthis('<font color="green">'
- ."Successful insecure authentication with $clientname </font>");
- print $client "ok\n";
- $keymode = "insecure";
- } else {
- &logthis('<font color="yellow">'
- ."Attempted insecure connection disallowed </font>");
- close $client;
- $clientok = 0;
-
- }
- }
- } else {
- &logthis(
- "<font color='blue'>WARNING: "
- ."$clientip failed to initialize: >$remotereq< </font>");
- &status('No init '.$clientip);
- }
-
- } else {
- &logthis(
- "<font color='blue'>WARNING: Unknown client $clientip</font>");
- &status('Hung up on '.$clientip);
- }
-
- if ($clientok) {
-# ---------------- New known client connecting, could mean machine online again
-
- foreach my $id (keys(%hostip)) {
- if ($hostip{$id} ne $clientip ||
- $hostip{$currenthostid} eq $clientip) {
- # no need to try to do recon's to myself
- next;
- }
- &reconlonc("$perlvar{'lonSockDir'}/$id");
- }
- &logthis("<font color='green'>Established connection: $clientname</font>");
- &status('Will listen to '.$clientname);
-# ------------------------------------------------------------ Process requests
- while (my $userinput=<$client>) {
- chomp($userinput);
- Debug("Request = $userinput\n");
- &status('Processing '.$clientname.': '.$userinput);
- my $wasenc=0;
- alarm(120);
-# ------------------------------------------------------------ See if encrypted
- if ($userinput =~ /^enc/) {
- if ($cipher) {
- my ($cmd,$cmdlength,$encinput)=split(/:/,$userinput);
- $userinput='';
- for (my $encidx=0;$encidx<length($encinput);$encidx+=16) {
- $userinput.=
- $cipher->decrypt(
- pack("H16",substr($encinput,$encidx,16))
- );
- }
- $userinput=substr($userinput,0,$cmdlength);
- $wasenc=1;
- }
- }
-
-# ------------------------------------------------------------- Normal commands
-# ------------------------------------------------------------------------ ping
- if ($userinput =~ /^ping/) { # client only
- if(isClient) {
- print $client "$currenthostid\n";
- } else {
- Reply($client, "refused\n", $userinput);
- }
-# ------------------------------------------------------------------------ pong
- }elsif ($userinput =~ /^pong/) { # client only
- if(isClient) {
- my $reply=&reply("ping",$clientname);
- print $client "$currenthostid:$reply\n";
- } else {
- Reply($client, "refused\n", $userinput);
- }
-# ------------------------------------------------------------------------ ekey
- } elsif ($userinput =~ /^ekey/) { # ok for both clients & mgrs
- my $buildkey=time.$$.int(rand 100000);
- $buildkey=~tr/1-6/A-F/;
- $buildkey=int(rand 100000).$buildkey.int(rand 100000);
- my $key=$currenthostid.$clientname;
- $key=~tr/a-z/A-Z/;
- $key=~tr/G-P/0-9/;
- $key=~tr/Q-Z/0-9/;
- $key=$key.$buildkey.$key.$buildkey.$key.$buildkey;
- $key=substr($key,0,32);
- my $cipherkey=pack("H32",$key);
- $cipher=new IDEA $cipherkey;
- print $client "$buildkey\n";
-# ------------------------------------------------------------------------ load
- } elsif ($userinput =~ /^load/) { # client only
- if (isClient) {
- my $loadavg;
- {
- my $loadfile=IO::File->new('/proc/loadavg');
- $loadavg=<$loadfile>;
- }
- $loadavg =~ s/\s.*//g;
- my $loadpercent=100*$loadavg/$perlvar{'lonLoadLim'};
- print $client "$loadpercent\n";
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# -------------------------------------------------------------------- userload
- } elsif ($userinput =~ /^userload/) { # client only
- if(isClient) {
- my $userloadpercent=&userload();
- print $client "$userloadpercent\n";
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-#
-# Transactions requiring encryption:
-#
-# ----------------------------------------------------------------- currentauth
- } elsif ($userinput =~ /^currentauth/) {
- if (($wasenc==1) && isClient) { # Encoded & client only.
- my ($cmd,$udom,$uname)=split(/:/,$userinput);
- my $result = GetAuthType($udom, $uname);
- if($result eq "nouser") {
- print $client "unknown_user\n";
- }
- else {
- print $client "$result\n"
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-#--------------------------------------------------------------------- pushfile
- } elsif($userinput =~ /^pushfile/) { # encoded & manager.
- if(($wasenc == 1) && isManager) {
- my $cert = GetCertificate($userinput);
- if(ValidManager($cert)) {
- my $reply = PushFile($userinput);
- print $client "$reply\n";
- } else {
- print $client "refused\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-#--------------------------------------------------------------------- reinit
- } elsif($userinput =~ /^reinit/) { # Encoded and manager
- if (($wasenc == 1) && isManager) {
- my $cert = GetCertificate($userinput);
- if(ValidManager($cert)) {
- chomp($userinput);
- my $reply = ReinitProcess($userinput);
- print $client "$reply\n";
- } else {
- print $client "refused\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
- }
-#------------------------------------------------------------------------- edit
- } elsif ($userinput =~ /^edit/) { # encoded and manager:
- if(($wasenc ==1) && (isManager)) {
- my $cert = GetCertificate($userinput);
- if(ValidManager($cert)) {
- my($command, $filetype, $script) = split(/:/, $userinput);
- if (($filetype eq "hosts") || ($filetype eq "domain")) {
- if($script ne "") {
- Reply($client, EditFile($userinput));
- } else {
- Reply($client,"refused\n",$userinput);
- }
- } else {
- Reply($client,"refused\n",$userinput);
- }
- } else {
- Reply($client,"refused\n",$userinput);
- }
- } else {
- Reply($client,"refused\n",$userinput);
- }
-# ------------------------------------------------------------------------ auth
- } elsif ($userinput =~ /^auth/) { # Encoded and client only.
- if (($wasenc==1) && isClient) {
- my ($cmd,$udom,$uname,$upass)=split(/:/,$userinput);
- chomp($upass);
- $upass=unescape($upass);
- my $proname=propath($udom,$uname);
- my $passfilename="$proname/passwd";
- if (-e $passfilename) {
- my $pf = IO::File->new($passfilename);
- my $realpasswd=<$pf>;
- chomp($realpasswd);
- my ($howpwd,$contentpwd)=split(/:/,$realpasswd);
- my $pwdcorrect=0;
- if ($howpwd eq 'internal') {
- &Debug("Internal auth");
- $pwdcorrect=
- (crypt($upass,$contentpwd) eq $contentpwd);
- } elsif ($howpwd eq 'unix') {
- &Debug("Unix auth");
- if((getpwnam($uname))[1] eq "") { #no such user!
- $pwdcorrect = 0;
- } else {
- $contentpwd=(getpwnam($uname))[1];
- my $pwauth_path="/usr/local/sbin/pwauth";
- unless ($contentpwd eq 'x') {
- $pwdcorrect=
- (crypt($upass,$contentpwd) eq
- $contentpwd);
- }
-
- elsif (-e $pwauth_path) {
- open PWAUTH, "|$pwauth_path" or
- die "Cannot invoke authentication";
- print PWAUTH "$uname\n$upass\n";
- close PWAUTH;
- $pwdcorrect=!$?;
- }
- }
- } elsif ($howpwd eq 'krb4') {
- my $null=pack("C",0);
- unless ($upass=~/$null/) {
- my $krb4_error = &Authen::Krb4::get_pw_in_tkt
- ($uname,"",$contentpwd,'krbtgt',
- $contentpwd,1,$upass);
- if (!$krb4_error) {
- $pwdcorrect = 1;
- } else {
- $pwdcorrect=0;
- # log error if it is not a bad password
- if ($krb4_error != 62) {
- &logthis('krb4:'.$uname.','.
- &Authen::Krb4::get_err_txt($Authen::Krb4::error));
- }
- }
- }
- } elsif ($howpwd eq 'krb5') {
- my $null=pack("C",0);
- unless ($upass=~/$null/) {
- my $krbclient=&Authen::Krb5::parse_name($uname.'@'.$contentpwd);
- my $krbservice="krbtgt/".$contentpwd."\@".$contentpwd;
- my $krbserver=&Authen::Krb5::parse_name($krbservice);
- my $credentials=&Authen::Krb5::cc_default();
- $credentials->initialize($krbclient);
- my $krbreturn =
- &Authen::Krb5::get_in_tkt_with_password(
- $krbclient,$krbserver,$upass,$credentials);
-# unless ($krbreturn) {
-# &logthis("Krb5 Error: ".
-# &Authen::Krb5::error());
-# }
- $pwdcorrect = ($krbreturn == 1);
- } else { $pwdcorrect=0; }
- } elsif ($howpwd eq 'localauth') {
- $pwdcorrect=&localauth::localauth($uname,$upass,
- $contentpwd);
- }
- if ($pwdcorrect) {
- print $client "authorized\n";
- } else {
- print $client "non_authorized\n";
- }
- } else {
- print $client "unknown_user\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# ---------------------------------------------------------------------- passwd
- } elsif ($userinput =~ /^passwd/) { # encoded and client
- if (($wasenc==1) && isClient) {
- my
- ($cmd,$udom,$uname,$upass,$npass)=split(/:/,$userinput);
- chomp($npass);
- $upass=&unescape($upass);
- $npass=&unescape($npass);
- &Debug("Trying to change password for $uname");
- my $proname=propath($udom,$uname);
- my $passfilename="$proname/passwd";
- if (-e $passfilename) {
- my $realpasswd;
- { my $pf = IO::File->new($passfilename);
- $realpasswd=<$pf>; }
- chomp($realpasswd);
- my ($howpwd,$contentpwd)=split(/:/,$realpasswd);
- if ($howpwd eq 'internal') {
- &Debug("internal auth");
- if (crypt($upass,$contentpwd) eq $contentpwd) {
- my $salt=time;
- $salt=substr($salt,6,2);
- my $ncpass=crypt($npass,$salt);
- {
- my $pf;
- if ($pf = IO::File->new(">$passfilename")) {
- print $pf "internal:$ncpass\n";
- &logthis("Result of password change for $uname: pwchange_success");
- print $client "ok\n";
- } else {
- &logthis("Unable to open $uname passwd to change password");
- print $client "non_authorized\n";
- }
- }
-
- } else {
- print $client "non_authorized\n";
- }
- } elsif ($howpwd eq 'unix') {
- # Unix means we have to access /etc/password
- # one way or another.
- # First: Make sure the current password is
- # correct
- &Debug("auth is unix");
- $contentpwd=(getpwnam($uname))[1];
- my $pwdcorrect = "0";
- my $pwauth_path="/usr/local/sbin/pwauth";
- unless ($contentpwd eq 'x') {
- $pwdcorrect=
- (crypt($upass,$contentpwd) eq $contentpwd);
- } elsif (-e $pwauth_path) {
- open PWAUTH, "|$pwauth_path" or
- die "Cannot invoke authentication";
- print PWAUTH "$uname\n$upass\n";
- close PWAUTH;
- &Debug("exited pwauth with $? ($uname,$upass) ");
- $pwdcorrect=($? == 0);
- }
- if ($pwdcorrect) {
- my $execdir=$perlvar{'lonDaemons'};
- &Debug("Opening lcpasswd pipeline");
- my $pf = IO::File->new("|$execdir/lcpasswd > $perlvar{'lonDaemons'}/logs/lcpasswd.log");
- print $pf "$uname\n$npass\n$npass\n";
- close $pf;
- my $err = $?;
- my $result = ($err>0 ? 'pwchange_failure'
- : 'ok');
- &logthis("Result of password change for $uname: ".
- &lcpasswdstrerror($?));
- print $client "$result\n";
- } else {
- print $client "non_authorized\n";
- }
- } else {
- print $client "auth_mode_error\n";
- }
- } else {
- print $client "unknown_user\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# -------------------------------------------------------------------- makeuser
- } elsif ($userinput =~ /^makeuser/) { # encoded and client.
- &Debug("Make user received");
- my $oldumask=umask(0077);
- if (($wasenc==1) && isClient) {
- my
- ($cmd,$udom,$uname,$umode,$npass)=split(/:/,$userinput);
- &Debug("cmd =".$cmd." $udom =".$udom.
- " uname=".$uname);
- chomp($npass);
- $npass=&unescape($npass);
- my $proname=propath($udom,$uname);
- my $passfilename="$proname/passwd";
- &Debug("Password file created will be:".
- $passfilename);
- if (-e $passfilename) {
- print $client "already_exists\n";
- } elsif ($udom ne $currentdomainid) {
- print $client "not_right_domain\n";
- } else {
- my @fpparts=split(/\//,$proname);
- my $fpnow=$fpparts[0].'/'.$fpparts[1].'/'.$fpparts[2];
- my $fperror='';
- for (my $i=3;$i<=$#fpparts;$i++) {
- $fpnow.='/'.$fpparts[$i];
- unless (-e $fpnow) {
- unless (mkdir($fpnow,0777)) {
- $fperror="error: ".($!+0)
- ." mkdir failed while attempting "
- ."makeuser";
- }
- }
- }
- unless ($fperror) {
- my $result=&make_passwd_file($uname, $umode,$npass,
- $passfilename);
- print $client $result;
- } else {
- print $client "$fperror\n";
- }
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
- umask($oldumask);
-# -------------------------------------------------------------- changeuserauth
- } elsif ($userinput =~ /^changeuserauth/) { # encoded & client
- &Debug("Changing authorization");
- if (($wasenc==1) && isClient) {
- my
- ($cmd,$udom,$uname,$umode,$npass)=split(/:/,$userinput);
- chomp($npass);
- &Debug("cmd = ".$cmd." domain= ".$udom.
- "uname =".$uname." umode= ".$umode);
- $npass=&unescape($npass);
- my $proname=&propath($udom,$uname);
- my $passfilename="$proname/passwd";
- if ($udom ne $currentdomainid) {
- print $client "not_right_domain\n";
- } else {
- my $result=&make_passwd_file($uname, $umode,$npass,
- $passfilename);
- print $client $result;
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# ------------------------------------------------------------------------ home
- } elsif ($userinput =~ /^home/) { # client clear or encoded
- if(isClient) {
- my ($cmd,$udom,$uname)=split(/:/,$userinput);
- chomp($uname);
- my $proname=propath($udom,$uname);
- if (-e $proname) {
- print $client "found\n";
- } else {
- print $client "not_found\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
+sub ishome {
+ my $author=shift;
+ $author=~s/\/home\/httpd\/html\/res\/([^\/]*)\/([^\/]*).*/$1\/$2/;
+ my ($udom,$uname)=split(/\//,$author);
+ my $proname=propath($udom,$uname);
+ if (-e $proname) {
+ return 'owner';
+ } else {
+ return 'not_owner';
+ }
+}
- }
-# ---------------------------------------------------------------------- update
- } elsif ($userinput =~ /^update/) { # client clear or encoded.
- if(isClient) {
- my ($cmd,$fname)=split(/:/,$userinput);
- my $ownership=ishome($fname);
- if ($ownership eq 'not_owner') {
- if (-e $fname) {
- my ($dev,$ino,$mode,$nlink,
- $uid,$gid,$rdev,$size,
- $atime,$mtime,$ctime,
- $blksize,$blocks)=stat($fname);
- my $now=time;
- my $since=$now-$atime;
- if ($since>$perlvar{'lonExpire'}) {
- my $reply=
- &reply("unsub:$fname","$clientname");
- unlink("$fname");
- } else {
- my $transname="$fname.in.transfer";
- my $remoteurl=
- &reply("sub:$fname","$clientname");
- my $response;
- {
- my $ua=new LWP::UserAgent;
- my $request=new HTTP::Request('GET',"$remoteurl");
- $response=$ua->request($request,$transname);
- }
- if ($response->is_error()) {
- unlink($transname);
- my $message=$response->status_line;
- &logthis(
- "LWP GET: $message for $fname ($remoteurl)");
- } else {
- if ($remoteurl!~/\.meta$/) {
- my $ua=new LWP::UserAgent;
- my $mrequest=
- new HTTP::Request('GET',$remoteurl.'.meta');
- my $mresponse=
- $ua->request($mrequest,$fname.'.meta');
- if ($mresponse->is_error()) {
- unlink($fname.'.meta');
- }
- }
- rename($transname,$fname);
- }
- }
- print $client "ok\n";
- } else {
- print $client "not_found\n";
- }
- } else {
- print $client "rejected\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
+# ======================================================= Continue main program
+# ---------------------------------------------------- Fork once and dissociate
- }
-# -------------------------------------- fetch a user file from a remote server
- } elsif ($userinput =~ /^fetchuserfile/) { # Client clear or enc.
- if(isClient) {
- my ($cmd,$fname)=split(/:/,$userinput);
- my ($udom,$uname,$ufile) = ($fname =~ m|^([^/]+)/([^/]+)/(.+)$|);
- my $udir=propath($udom,$uname).'/userfiles';
- unless (-e $udir) { mkdir($udir,0770); }
- if (-e $udir) {
- $ufile=~s/^[\.\~]+//;
- my $path = $udir;
- if ($ufile =~m|(.+)/([^/]+)$|) {
- my @parts=split('/',$1);
- foreach my $part (@parts) {
- $path .= '/'.$part;
- if ((-e $path)!=1) {
- mkdir($path,0770);
- }
- }
- }
- my $destname=$udir.'/'.$ufile;
- my $transname=$udir.'/'.$ufile.'.in.transit';
- my $remoteurl='http://'.$clientip.'/userfiles/'.$fname;
- my $response;
- {
- my $ua=new LWP::UserAgent;
- my $request=new HTTP::Request('GET',"$remoteurl");
- $response=$ua->request($request,$transname);
- }
- if ($response->is_error()) {
- unlink($transname);
- my $message=$response->status_line;
- &logthis("LWP GET: $message for $fname ($remoteurl)");
- print $client "failed\n";
- } else {
- if (!rename($transname,$destname)) {
- &logthis("Unable to move $transname to $destname");
- unlink($transname);
- print $client "failed\n";
- } else {
- print $client "ok\n";
- }
- }
- } else {
- print $client "not_home\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
- }
-# --------------------------------------------------------- remove a user file
- } elsif ($userinput =~ /^removeuserfile/) { # Client clear or enc.
- if(isClient) {
- my ($cmd,$fname)=split(/:/,$userinput);
- my ($udom,$uname,$ufile) = ($fname =~ m|^([^/]+)/([^/]+)/(.+)$|);
- &logthis("$udom - $uname - $ufile");
- if ($ufile =~m|/\.\./|) {
- # any files paths with /../ in them refuse
- # to deal with
- print $client "refused\n";
- } else {
- my $udir=propath($udom,$uname);
- if (-e $udir) {
- my $file=$udir.'/userfiles/'.$ufile;
- if (-e $file) {
- unlink($file);
- if (-e $file) {
- print $client "failed\n";
- } else {
- print $client "ok\n";
- }
- } else {
- print $client "not_found\n";
- }
- } else {
- print $client "not_home\n";
- }
- }
- } else {
- Reply($client, "refused\n", $userinput);
- }
-# ------------------------------------------ authenticate access to a user file
- } elsif ($userinput =~ /^tokenauthuserfile/) { # Client only
- if(isClient) {
- my ($cmd,$fname,$session)=split(/:/,$userinput);
- chomp($session);
- my $reply='non_auth';
- if (open(ENVIN,$perlvar{'lonIDsDir'}.'/'.
- $session.'.id')) {
- while (my $line=<ENVIN>) {
- if ($line=~ m|userfile\.\Q$fname\E\=|) { $reply='ok'; }
- }
- close(ENVIN);
- print $client $reply."\n";
- } else {
- print $client "invalid_token\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
+my $fpid=fork;
+exit if $fpid;
+die "Couldn't fork: $!" unless defined ($fpid);
- }
-# ----------------------------------------------------------------- unsubscribe
- } elsif ($userinput =~ /^unsub/) {
- if(isClient) {
- my ($cmd,$fname)=split(/:/,$userinput);
- if (-e $fname) {
- print $client &unsub($fname,$clientip);
- } else {
- print $client "not_found\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
+POSIX::setsid() or die "Can't start new session: $!";
- }
-# ------------------------------------------------------------------- subscribe
- } elsif ($userinput =~ /^sub/) {
- if(isClient) {
- print $client &subscribe($userinput,$clientip);
- } else {
- Reply($client, "refused\n", $userinput);
+# ------------------------------------------------------- Write our PID on disk
- }
-# ------------------------------------------------------------- current version
- } elsif ($userinput =~ /^currentversion/) {
- if(isClient) {
- my ($cmd,$fname)=split(/:/,$userinput);
- print $client ¤tversion($fname)."\n";
- } else {
- Reply($client, "refused\n", $userinput);
+my $execdir=$perlvar{'lonDaemons'};
+open (PIDSAVE,">$execdir/logs/lond.pid");
+print PIDSAVE "$$\n";
+close(PIDSAVE);
+&logthis("<font color='red'>CRITICAL: ---------- Starting ----------</font>");
+&status('Starting');
- }
-# ------------------------------------------------------------------------- log
- } elsif ($userinput =~ /^log/) {
- if(isClient) {
- my ($cmd,$udom,$uname,$what)=split(/:/,$userinput);
- chomp($what);
- my $proname=propath($udom,$uname);
- my $now=time;
- {
- my $hfh;
- if ($hfh=IO::File->new(">>$proname/activity.log")) {
- print $hfh "$now:$clientname:$what\n";
- print $client "ok\n";
- } else {
- print $client "error: ".($!+0)
- ." IO::File->new Failed "
- ."while attempting log\n";
- }
- }
- } else {
- Reply($client, "refused\n", $userinput);
- }
-# ------------------------------------------------------------------------- put
- } elsif ($userinput =~ /^put/) {
- if(isClient) {
- my ($cmd,$udom,$uname,$namespace,$what)
- =split(/:/,$userinput,5);
- $namespace=~s/\//\_/g;
- $namespace=~s/\W//g;
- if ($namespace ne 'roles') {
- chomp($what);
- my $proname=propath($udom,$uname);
- my $now=time;
- my @pairs=split(/\&/,$what);
- my %hash;
- if (tie(%hash,'GDBM_File',
- "$proname/$namespace.db",
- &GDBM_WRCREAT(),0640)) {
- unless ($namespace=~/^nohist\_/) {
- my $hfh;
- if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { print $hfh "P:$now:$what\n"; }
- }
- foreach my $pair (@pairs) {
- my ($key,$value)=split(/=/,$pair);
- $hash{$key}=$value;
- }
- if (untie(%hash)) {
- print $client "ok\n";
- } else {
- print $client "error: ".($!+0)
- ." untie(GDBM) failed ".
- "while attempting put\n";
- }
- } else {
- print $client "error: ".($!)
- ." tie(GDBM) Failed ".
- "while attempting put\n";
- }
- } else {
- print $client "refused\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
+# ----------------------------------------------------- Install signal handlers
- }
-# ------------------------------------------------------------------- inc
- } elsif ($userinput =~ /^inc:/) {
- if(isClient) {
- my ($cmd,$udom,$uname,$namespace,$what)
- =split(/:/,$userinput);
- $namespace=~s/\//\_/g;
- $namespace=~s/\W//g;
- if ($namespace ne 'roles') {
- chomp($what);
- my $proname=propath($udom,$uname);
- my $now=time;
- my @pairs=split(/\&/,$what);
- my %hash;
- if (tie(%hash,'GDBM_File',
- "$proname/$namespace.db",
- &GDBM_WRCREAT(),0640)) {
- unless ($namespace=~/^nohist\_/) {
- my $hfh;
- if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { print $hfh "P:$now:$what\n"; }
- }
- foreach my $pair (@pairs) {
- my ($key,$value)=split(/=/,$pair);
- # We could check that we have a number...
- if (! defined($value) || $value eq '') {
- $value = 1;
- }
- $hash{$key}+=$value;
- }
- if (untie(%hash)) {
- print $client "ok\n";
- } else {
- print $client "error: ".($!+0)
- ." untie(GDBM) failed ".
- "while attempting inc\n";
- }
- } else {
- print $client "error: ".($!)
- ." tie(GDBM) Failed ".
- "while attempting inc\n";
- }
- } else {
- print $client "refused\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
- }
-# -------------------------------------------------------------------- rolesput
- } elsif ($userinput =~ /^rolesput/) {
- if(isClient) {
- &Debug("rolesput");
- if ($wasenc==1) {
- my ($cmd,$exedom,$exeuser,$udom,$uname,$what)
- =split(/:/,$userinput);
- &Debug("cmd = ".$cmd." exedom= ".$exedom.
- "user = ".$exeuser." udom=".$udom.
- "what = ".$what);
- my $namespace='roles';
- chomp($what);
- my $proname=propath($udom,$uname);
- my $now=time;
- my @pairs=split(/\&/,$what);
- my %hash;
- if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) {
- {
- my $hfh;
- if ($hfh=IO::File->new(">>$proname/$namespace.hist")) {
- print $hfh "P:$now:$exedom:$exeuser:$what\n";
- }
- }
+$SIG{CHLD} = \&REAPER;
+$SIG{INT} = $SIG{TERM} = \&HUNTSMAN;
+$SIG{HUP} = \&HUPSMAN;
+$SIG{USR1} = \&checkchildren;
+$SIG{USR2} = \&UpdateHosts;
- foreach my $pair (@pairs) {
- my ($key,$value)=split(/=/,$pair);
- &ManagePermissions($key, $udom, $uname,
- &GetAuthType( $udom,
- $uname));
- $hash{$key}=$value;
- }
- if (untie(%hash)) {
- print $client "ok\n";
- } else {
- print $client "error: ".($!+0)
- ." untie(GDBM) Failed ".
- "while attempting rolesput\n";
- }
- } else {
- print $client "error: ".($!+0)
- ." tie(GDBM) Failed ".
- "while attempting rolesput\n";
- }
- } else {
- print $client "refused\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# -------------------------------------------------------------------- rolesdel
- } elsif ($userinput =~ /^rolesdel/) {
- if(isClient) {
- &Debug("rolesdel");
- if ($wasenc==1) {
- my ($cmd,$exedom,$exeuser,$udom,$uname,$what)
- =split(/:/,$userinput);
- &Debug("cmd = ".$cmd." exedom= ".$exedom.
- "user = ".$exeuser." udom=".$udom.
- "what = ".$what);
- my $namespace='roles';
- chomp($what);
- my $proname=propath($udom,$uname);
- my $now=time;
- my @rolekeys=split(/\&/,$what);
- my %hash;
- if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) {
- {
- my $hfh;
- if ($hfh=IO::File->new(">>$proname/$namespace.hist")) {
- print $hfh "D:$now:$exedom:$exeuser:$what\n";
- }
- }
- foreach my $key (@rolekeys) {
- delete $hash{$key};
- }
- if (untie(%hash)) {
- print $client "ok\n";
- } else {
- print $client "error: ".($!+0)
- ." untie(GDBM) Failed ".
- "while attempting rolesdel\n";
- }
- } else {
- print $client "error: ".($!+0)
- ." tie(GDBM) Failed ".
- "while attempting rolesdel\n";
- }
- } else {
- print $client "refused\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# ------------------------------------------------------------------------- get
- } elsif ($userinput =~ /^get/) {
- if(isClient) {
- my ($cmd,$udom,$uname,$namespace,$what)
- =split(/:/,$userinput);
- $namespace=~s/\//\_/g;
- $namespace=~s/\W//g;
- chomp($what);
- my @queries=split(/\&/,$what);
- my $proname=propath($udom,$uname);
- my $qresult='';
- my %hash;
- if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) {
- for (my $i=0;$i<=$#queries;$i++) {
- $qresult.="$hash{$queries[$i]}&";
- }
- if (untie(%hash)) {
- $qresult=~s/\&$//;
- print $client "$qresult\n";
- } else {
- print $client "error: ".($!+0)
- ." untie(GDBM) Failed ".
- "while attempting get\n";
- }
- } else {
- if ($!+0 == 2) {
- print $client "error:No such file or ".
- "GDBM reported bad block error\n";
- } else {
- print $client "error: ".($!+0)
- ." tie(GDBM) Failed ".
- "while attempting get\n";
- }
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# ------------------------------------------------------------------------ eget
- } elsif ($userinput =~ /^eget/) {
- if (isClient) {
- my ($cmd,$udom,$uname,$namespace,$what)
- =split(/:/,$userinput);
- $namespace=~s/\//\_/g;
- $namespace=~s/\W//g;
- chomp($what);
- my @queries=split(/\&/,$what);
- my $proname=propath($udom,$uname);
- my $qresult='';
- my %hash;
- if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) {
- for (my $i=0;$i<=$#queries;$i++) {
- $qresult.="$hash{$queries[$i]}&";
- }
- if (untie(%hash)) {
- $qresult=~s/\&$//;
- if ($cipher) {
- my $cmdlength=length($qresult);
- $qresult.=" ";
- my $encqresult='';
- for
- (my $encidx=0;$encidx<=$cmdlength;$encidx+=8) {
- $encqresult.=
- unpack("H16",
- $cipher->encrypt(substr($qresult,$encidx,8)));
- }
- print $client "enc:$cmdlength:$encqresult\n";
- } else {
- print $client "error:no_key\n";
- }
- } else {
- print $client "error: ".($!+0)
- ." untie(GDBM) Failed ".
- "while attempting eget\n";
- }
- } else {
- print $client "error: ".($!+0)
- ." tie(GDBM) Failed ".
- "while attempting eget\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# ------------------------------------------------------------------------- del
- } elsif ($userinput =~ /^del/) {
- if(isClient) {
- my ($cmd,$udom,$uname,$namespace,$what)
- =split(/:/,$userinput);
- $namespace=~s/\//\_/g;
- $namespace=~s/\W//g;
- chomp($what);
- my $proname=propath($udom,$uname);
- my $now=time;
- my @keys=split(/\&/,$what);
- my %hash;
- if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) {
- unless ($namespace=~/^nohist\_/) {
- my $hfh;
- if ($hfh=IO::File->new(">>$proname/$namespace.hist")) { print $hfh "D:$now:$what\n"; }
- }
- foreach my $key (@keys) {
- delete($hash{$key});
- }
- if (untie(%hash)) {
- print $client "ok\n";
- } else {
- print $client "error: ".($!+0)
- ." untie(GDBM) Failed ".
- "while attempting del\n";
- }
- } else {
- print $client "error: ".($!+0)
- ." tie(GDBM) Failed ".
- "while attempting del\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# ------------------------------------------------------------------------ keys
- } elsif ($userinput =~ /^keys/) {
- if(isClient) {
- my ($cmd,$udom,$uname,$namespace)
- =split(/:/,$userinput);
- $namespace=~s/\//\_/g;
- $namespace=~s/\W//g;
- my $proname=propath($udom,$uname);
- my $qresult='';
- my %hash;
- if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) {
- foreach my $key (keys %hash) {
- $qresult.="$key&";
- }
- if (untie(%hash)) {
- $qresult=~s/\&$//;
- print $client "$qresult\n";
- } else {
- print $client "error: ".($!+0)
- ." untie(GDBM) Failed ".
- "while attempting keys\n";
- }
- } else {
- print $client "error: ".($!+0)
- ." tie(GDBM) Failed ".
- "while attempting keys\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# ----------------------------------------------------------------- dumpcurrent
- } elsif ($userinput =~ /^currentdump/) {
- if (isClient) {
- my ($cmd,$udom,$uname,$namespace)
- =split(/:/,$userinput);
- $namespace=~s/\//\_/g;
- $namespace=~s/\W//g;
- my $qresult='';
- my $proname=propath($udom,$uname);
- my %hash;
- if (tie(%hash,'GDBM_File',
- "$proname/$namespace.db",
- &GDBM_READER(),0640)) {
- # Structure of %data:
- # $data{$symb}->{$parameter}=$value;
- # $data{$symb}->{'v.'.$parameter}=$version;
- # since $parameter will be unescaped, we do not
- # have to worry about silly parameter names...
- my %data = ();
- while (my ($key,$value) = each(%hash)) {
- my ($v,$symb,$param) = split(/:/,$key);
- next if ($v eq 'version' || $symb eq 'keys');
- next if (exists($data{$symb}) &&
- exists($data{$symb}->{$param}) &&
- $data{$symb}->{'v.'.$param} > $v);
- $data{$symb}->{$param}=$value;
- $data{$symb}->{'v.'.$param}=$v;
- }
- if (untie(%hash)) {
- while (my ($symb,$param_hash) = each(%data)) {
- while(my ($param,$value) = each (%$param_hash)){
- next if ($param =~ /^v\./);
- $qresult.=$symb.':'.$param.'='.$value.'&';
- }
- }
- chop($qresult);
- print $client "$qresult\n";
- } else {
- print $client "error: ".($!+0)
- ." untie(GDBM) Failed ".
- "while attempting currentdump\n";
- }
- } else {
- print $client "error: ".($!+0)
- ." tie(GDBM) Failed ".
- "while attempting currentdump\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
+# Read the host hashes:
+
+ReadHostTable;
+
+# --------------------------------------------------------------
+# Accept connections. When a connection comes in, it is validated
+# and if good, a child process is created to process transactions
+# along the connection.
+
+while (1) {
+ &status('Starting accept');
+ $client = $server->accept() or next;
+ &status('Accepted '.$client.' off to spawn');
+ make_new_child($client);
+ &status('Finished spawning');
+}
+
+sub make_new_child {
+ my $pid;
+# my $cipher; # Now global
+ my $sigset;
+
+ $client = shift;
+ &status('Starting new child '.$client);
+ &logthis('<font color="green"> Attempting to start child ('.$client.
+ ")</font>");
+ # block signal for fork
+ $sigset = POSIX::SigSet->new(SIGINT);
+ sigprocmask(SIG_BLOCK, $sigset)
+ or die "Can't block SIGINT for fork: $!\n";
+
+ die "fork: $!" unless defined ($pid = fork);
+
+ $client->sockopt(SO_KEEPALIVE, 1); # Enable monitoring of
+ # connection liveness.
+
+ #
+ # Figure out who we're talking to so we can record the peer in
+ # the pid hash.
+ #
+ my $caller = getpeername($client);
+ my ($port,$iaddr);
+ if (defined($caller) && length($caller) > 0) {
+ ($port,$iaddr)=unpack_sockaddr_in($caller);
+ } else {
+ &logthis("Unable to determine who caller was, getpeername returned nothing");
+ }
+ if (defined($iaddr)) {
+ $clientip = inet_ntoa($iaddr);
+ Debug("Connected with $clientip");
+ $clientdns = gethostbyaddr($iaddr, AF_INET);
+ Debug("Connected with $clientdns by name");
+ } else {
+ &logthis("Unable to determine clientip");
+ $clientip='Unavailable';
+ }
+
+ if ($pid) {
+ # Parent records the child's birth and returns.
+ sigprocmask(SIG_UNBLOCK, $sigset)
+ or die "Can't unblock SIGINT for fork: $!\n";
+ $children{$pid} = $clientip;
+ &status('Started child '.$pid);
+ return;
+ } else {
+ # Child can *not* return from this subroutine.
+ $SIG{INT} = 'DEFAULT'; # make SIGINT kill us as it did before
+ $SIG{CHLD} = 'DEFAULT'; #make this default so that pwauth returns
+ #don't get intercepted
+ $SIG{USR1}= \&logstatus;
+ $SIG{ALRM}= \&timeout;
+ $lastlog='Forked ';
+ $status='Forked';
+
+ # unblock signals
+ sigprocmask(SIG_UNBLOCK, $sigset)
+ or die "Can't unblock SIGINT for fork: $!\n";
+
+# my $tmpsnum=0; # Now global
+#---------------------------------------------------- kerberos 5 initialization
+ &Authen::Krb5::init_context();
+ &Authen::Krb5::init_ets();
+
+ &status('Accepted connection');
+# =============================================================================
+ # do something with the connection
+# -----------------------------------------------------------------------------
+ # see if we know client and 'check' for spoof IP by ineffective challenge
+
+ ReadManagerTable; # May also be a manager!!
+
+ my $clientrec=($hostid{$clientip} ne undef);
+ my $ismanager=($managers{$clientip} ne undef);
+ $clientname = "[unknonwn]";
+ if($clientrec) { # Establish client type.
+ $ConnectionType = "client";
+ $clientname = $hostid{$clientip};
+ if($ismanager) {
+ $ConnectionType = "both";
+ }
+ } else {
+ $ConnectionType = "manager";
+ $clientname = $managers{$clientip};
+ }
+ my $clientok;
+
+ if ($clientrec || $ismanager) {
+ &status("Waiting for init from $clientip $clientname");
+ &logthis('<font color="yellow">INFO: Connection, '.
+ $clientip.
+ " ($clientname) connection type = $ConnectionType </font>" );
+ &status("Connecting $clientip ($clientname))");
+ my $remotereq=<$client>;
+ chomp($remotereq);
+ Debug("Got init: $remotereq");
+ my $inikeyword = split(/:/, $remotereq);
+ if ($remotereq =~ /^init/) {
+ &sethost("sethost:$perlvar{'lonHostID'}");
+ #
+ # If the remote is attempting a local init... give that a try:
+ #
+ my ($i, $inittype) = split(/:/, $remotereq);
+
+ # If the connection type is ssl, but I didn't get my
+ # certificate files yet, then I'll drop back to
+ # insecure (if allowed).
+
+ if($inittype eq "ssl") {
+ my ($ca, $cert) = lonssl::CertificateFile;
+ my $kfile = lonssl::KeyFile;
+ if((!$ca) ||
+ (!$cert) ||
+ (!$kfile)) {
+ $inittype = ""; # This forces insecure attempt.
+ &logthis("<font color=\"blue\"> Certificates not "
+ ."installed -- trying insecure auth</font>");
}
-# ------------------------------------------------------------------------ dump
- } elsif ($userinput =~ /^dump/) {
- if(isClient) {
- my ($cmd,$udom,$uname,$namespace,$regexp)
- =split(/:/,$userinput);
- $namespace=~s/\//\_/g;
- $namespace=~s/\W//g;
- if (defined($regexp)) {
- $regexp=&unescape($regexp);
- } else {
- $regexp='.';
- }
- my $qresult='';
- my $proname=propath($udom,$uname);
- my %hash;
- if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) {
- while (my ($key,$value) = each(%hash)) {
- if ($regexp eq '.') {
- $qresult.=$key.'='.$value.'&';
- } else {
- my $unescapeKey = &unescape($key);
- if (eval('$unescapeKey=~/$regexp/')) {
- $qresult.="$key=$value&";
- }
- }
- }
- if (untie(%hash)) {
- chop($qresult);
- print $client "$qresult\n";
- } else {
- print $client "error: ".($!+0)
- ." untie(GDBM) Failed ".
- "while attempting dump\n";
- }
- } else {
- print $client "error: ".($!+0)
- ." tie(GDBM) Failed ".
- "while attempting dump\n";
- }
+ else { # SSL certificates are in place so
+ } # Leave the inittype alone.
+ }
+
+ if($inittype eq "local") {
+ my $key = LocalConnection($client, $remotereq);
+ if($key) {
+ Debug("Got local key $key");
+ $clientok = 1;
+ my $cipherkey = pack("H32", $key);
+ $cipher = new IDEA($cipherkey);
+ print $client "ok:local\n";
+ &logthis('<font color="green"'
+ . "Successful local authentication </font>");
+ $keymode = "local"
} else {
- Reply($client, "refused\n", $userinput);
-
+ Debug("Failed to get local key");
+ $clientok = 0;
+ shutdown($client, 3);
+ close $client;
}
-# ----------------------------------------------------------------------- store
- } elsif ($userinput =~ /^store/) {
- if(isClient) {
- my ($cmd,$udom,$uname,$namespace,$rid,$what)
- =split(/:/,$userinput);
- $namespace=~s/\//\_/g;
- $namespace=~s/\W//g;
- if ($namespace ne 'roles') {
- chomp($what);
- my $proname=propath($udom,$uname);
- my $now=time;
- my @pairs=split(/\&/,$what);
- my %hash;
- if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_WRCREAT(),0640)) {
- unless ($namespace=~/^nohist\_/) {
- my $hfh;
- if ($hfh=IO::File->new(">>$proname/$namespace.hist")) {
- print $hfh "P:$now:$rid:$what\n";
- }
- }
- my @previouskeys=split(/&/,$hash{"keys:$rid"});
- my $key;
- $hash{"version:$rid"}++;
- my $version=$hash{"version:$rid"};
- my $allkeys='';
- foreach my $pair (@pairs) {
- my ($key,$value)=split(/=/,$pair);
- $allkeys.=$key.':';
- $hash{"$version:$rid:$key"}=$value;
- }
- $hash{"$version:$rid:timestamp"}=$now;
- $allkeys.='timestamp';
- $hash{"$version:keys:$rid"}=$allkeys;
- if (untie(%hash)) {
- print $client "ok\n";
- } else {
- print $client "error: ".($!+0)
- ." untie(GDBM) Failed ".
- "while attempting store\n";
- }
- } else {
- print $client "error: ".($!+0)
- ." tie(GDBM) Failed ".
- "while attempting store\n";
- }
- } else {
- print $client "refused\n";
- }
+ } elsif ($inittype eq "ssl") {
+ my $key = SSLConnection($client);
+ if ($key) {
+ $clientok = 1;
+ my $cipherkey = pack("H32", $key);
+ $cipher = new IDEA($cipherkey);
+ &logthis('<font color="green">'
+ ."Successfull ssl authentication with $clientname </font>");
+ $keymode = "ssl";
+
} else {
- Reply($client, "refused\n", $userinput);
-
- }
-# --------------------------------------------------------------------- restore
- } elsif ($userinput =~ /^restore/) {
- if(isClient) {
- my ($cmd,$udom,$uname,$namespace,$rid)
- =split(/:/,$userinput);
- $namespace=~s/\//\_/g;
- $namespace=~s/\W//g;
- chomp($rid);
- my $proname=propath($udom,$uname);
- my $qresult='';
- my %hash;
- if (tie(%hash,'GDBM_File',"$proname/$namespace.db",&GDBM_READER(),0640)) {
- my $version=$hash{"version:$rid"};
- $qresult.="version=$version&";
- my $scope;
- for ($scope=1;$scope<=$version;$scope++) {
- my $vkeys=$hash{"$scope:keys:$rid"};
- my @keys=split(/:/,$vkeys);
- my $key;
- $qresult.="$scope:keys=$vkeys&";
- foreach $key (@keys) {
- $qresult.="$scope:$key=".$hash{"$scope:$rid:$key"}."&";
- }
- }
- if (untie(%hash)) {
- $qresult=~s/\&$//;
- print $client "$qresult\n";
- } else {
- print $client "error: ".($!+0)
- ." untie(GDBM) Failed ".
- "while attempting restore\n";
- }
- } else {
- print $client "error: ".($!+0)
- ." tie(GDBM) Failed ".
- "while attempting restore\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
+ $clientok = 0;
+ close $client;
}
-# -------------------------------------------------------------------- chatsend
- } elsif ($userinput =~ /^chatsend/) {
- if(isClient) {
- my ($cmd,$cdom,$cnum,$newpost)=split(/\:/,$userinput);
- &chatadd($cdom,$cnum,$newpost);
+
+ } else {
+ my $ok = InsecureConnection($client);
+ if($ok) {
+ $clientok = 1;
+ &logthis('<font color="green">'
+ ."Successful insecure authentication with $clientname </font>");
print $client "ok\n";
+ $keymode = "insecure";
} else {
- Reply($client, "refused\n", $userinput);
-
- }
-# -------------------------------------------------------------------- chatretr
- } elsif ($userinput =~ /^chatretr/) {
- if(isClient) {
- my
- ($cmd,$cdom,$cnum,$udom,$uname)=split(/\:/,$userinput);
- my $reply='';
- foreach (&getchat($cdom,$cnum,$udom,$uname)) {
- $reply.=&escape($_).':';
- }
- $reply=~s/\:$//;
- print $client $reply."\n";
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# ------------------------------------------------------------------- querysend
- } elsif ($userinput =~ /^querysend/) {
- if (isClient) {
- my ($cmd,$query,
- $arg1,$arg2,$arg3)=split(/\:/,$userinput);
- $query=~s/\n*$//g;
- print $client "".
- sqlreply("$clientname\&$query".
- "\&$arg1"."\&$arg2"."\&$arg3")."\n";
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# ------------------------------------------------------------------ queryreply
- } elsif ($userinput =~ /^queryreply/) {
- if(isClient) {
- my ($cmd,$id,$reply)=split(/:/,$userinput);
- my $store;
- my $execdir=$perlvar{'lonDaemons'};
- if ($store=IO::File->new(">$execdir/tmp/$id")) {
- $reply=~s/\&/\n/g;
- print $store $reply;
- close $store;
- my $store2=IO::File->new(">$execdir/tmp/$id.end");
- print $store2 "done\n";
- close $store2;
- print $client "ok\n";
- }
- else {
- print $client "error: ".($!+0)
- ." IO::File->new Failed ".
- "while attempting queryreply\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# ----------------------------------------------------------------- courseidput
- } elsif ($userinput =~ /^courseidput/) {
- if(isClient) {
- my ($cmd,$udom,$what)=split(/:/,$userinput);
- chomp($what);
- $udom=~s/\W//g;
- my $proname=
- "$perlvar{'lonUsersDir'}/$udom/nohist_courseids";
- my $now=time;
- my @pairs=split(/\&/,$what);
- my %hash;
- if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_WRCREAT(),0640)) {
- foreach my $pair (@pairs) {
- my ($key,$descr,$inst_code)=split(/=/,$pair);
- $hash{$key}=$descr.':'.$inst_code.':'.$now;
- }
- if (untie(%hash)) {
- print $client "ok\n";
- } else {
- print $client "error: ".($!+0)
- ." untie(GDBM) Failed ".
- "while attempting courseidput\n";
- }
- } else {
- print $client "error: ".($!+0)
- ." tie(GDBM) Failed ".
- "while attempting courseidput\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# ---------------------------------------------------------------- courseiddump
- } elsif ($userinput =~ /^courseiddump/) {
- if(isClient) {
- my ($cmd,$udom,$since,$description)
- =split(/:/,$userinput);
- if (defined($description)) {
- $description=&unescape($description);
- } else {
- $description='.';
- }
- unless (defined($since)) { $since=0; }
- my $qresult='';
- my $proname=
- "$perlvar{'lonUsersDir'}/$udom/nohist_courseids";
- my %hash;
- if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_READER(),0640)) {
- while (my ($key,$value) = each(%hash)) {
- my ($descr,$lasttime,$inst_code);
- if ($value =~ m/^([^\:]*):([^\:]*):(\d+)$/) {
- ($descr,$inst_code,$lasttime)=($1,$2,$3);
- } else {
- ($descr,$lasttime) = split(/\:/,$value);
- }
- if ($lasttime<$since) { next; }
- if ($description eq '.') {
- $qresult.=$key.'='.$descr.':'.$inst_code.'&';
- } else {
- my $unescapeVal = &unescape($descr);
- if (eval('$unescapeVal=~/\Q$description\E/i')) {
- $qresult.=$key.'='.$descr.':'.$inst_code.'&';
- }
- }
- }
- if (untie(%hash)) {
- chop($qresult);
- print $client "$qresult\n";
- } else {
- print $client "error: ".($!+0)
- ." untie(GDBM) Failed ".
- "while attempting courseiddump\n";
- }
- } else {
- print $client "error: ".($!+0)
- ." tie(GDBM) Failed ".
- "while attempting courseiddump\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# ----------------------------------------------------------------------- idput
- } elsif ($userinput =~ /^idput/) {
- if(isClient) {
- my ($cmd,$udom,$what)=split(/:/,$userinput);
- chomp($what);
- $udom=~s/\W//g;
- my $proname="$perlvar{'lonUsersDir'}/$udom/ids";
- my $now=time;
- my @pairs=split(/\&/,$what);
- my %hash;
- if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_WRCREAT(),0640)) {
- {
- my $hfh;
- if ($hfh=IO::File->new(">>$proname.hist")) {
- print $hfh "P:$now:$what\n";
- }
- }
- foreach my $pair (@pairs) {
- my ($key,$value)=split(/=/,$pair);
- $hash{$key}=$value;
- }
- if (untie(%hash)) {
- print $client "ok\n";
- } else {
- print $client "error: ".($!+0)
- ." untie(GDBM) Failed ".
- "while attempting idput\n";
- }
- } else {
- print $client "error: ".($!+0)
- ." tie(GDBM) Failed ".
- "while attempting idput\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# ----------------------------------------------------------------------- idget
- } elsif ($userinput =~ /^idget/) {
- if(isClient) {
- my ($cmd,$udom,$what)=split(/:/,$userinput);
- chomp($what);
- $udom=~s/\W//g;
- my $proname="$perlvar{'lonUsersDir'}/$udom/ids";
- my @queries=split(/\&/,$what);
- my $qresult='';
- my %hash;
- if (tie(%hash,'GDBM_File',"$proname.db",&GDBM_READER(),0640)) {
- for (my $i=0;$i<=$#queries;$i++) {
- $qresult.="$hash{$queries[$i]}&";
- }
- if (untie(%hash)) {
- $qresult=~s/\&$//;
- print $client "$qresult\n";
- } else {
- print $client "error: ".($!+0)
- ." untie(GDBM) Failed ".
- "while attempting idget\n";
- }
- } else {
- print $client "error: ".($!+0)
- ." tie(GDBM) Failed ".
- "while attempting idget\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# ---------------------------------------------------------------------- tmpput
- } elsif ($userinput =~ /^tmpput/) {
- if(isClient) {
- my ($cmd,$what)=split(/:/,$userinput);
- my $store;
- $tmpsnum++;
- my $id=$$.'_'.$clientip.'_'.$tmpsnum;
- $id=~s/\W/\_/g;
- $what=~s/\n//g;
- my $execdir=$perlvar{'lonDaemons'};
- if ($store=IO::File->new(">$execdir/tmp/$id.tmp")) {
- print $store $what;
- close $store;
- print $client "$id\n";
- }
- else {
- print $client "error: ".($!+0)
- ."IO::File->new Failed ".
- "while attempting tmpput\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-
-# ---------------------------------------------------------------------- tmpget
- } elsif ($userinput =~ /^tmpget/) {
- if(isClient) {
- my ($cmd,$id)=split(/:/,$userinput);
- chomp($id);
- $id=~s/\W/\_/g;
- my $store;
- my $execdir=$perlvar{'lonDaemons'};
- if ($store=IO::File->new("$execdir/tmp/$id.tmp")) {
- my $reply=<$store>;
- print $client "$reply\n";
- close $store;
- }
- else {
- print $client "error: ".($!+0)
- ."IO::File->new Failed ".
- "while attempting tmpget\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# ---------------------------------------------------------------------- tmpdel
- } elsif ($userinput =~ /^tmpdel/) {
- if(isClient) {
- my ($cmd,$id)=split(/:/,$userinput);
- chomp($id);
- $id=~s/\W/\_/g;
- my $execdir=$perlvar{'lonDaemons'};
- if (unlink("$execdir/tmp/$id.tmp")) {
- print $client "ok\n";
- } else {
- print $client "error: ".($!+0)
- ."Unlink tmp Failed ".
- "while attempting tmpdel\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# ----------------------------------------- portfolio directory list (portls)
- } elsif ($userinput =~ /^portls/) {
- if(isClient) {
- my ($cmd,$uname,$udom)=split(/:/,$userinput);
- my $udir=propath($udom,$uname).'/userfiles/portfolio';
- my $dirLine='';
- my $dirContents='';
- if (opendir(LSDIR,$udir.'/')){
- while ($dirLine = readdir(LSDIR)){
- $dirContents = $dirContents.$dirLine.'<br />';
- }
- } else {
- $dirContents = "No directory found\n";
- }
- print $client $dirContents."\n";
- } else {
- Reply($client, "refused\n", $userinput);
- }
-# -------------------------------------------------------------------------- ls
- } elsif ($userinput =~ /^ls/) {
- if(isClient) {
- my $obs;
- my $rights;
- my ($cmd,$ulsdir)=split(/:/,$userinput);
- my $ulsout='';
- my $ulsfn;
- if (-e $ulsdir) {
- if(-d $ulsdir) {
- if (opendir(LSDIR,$ulsdir)) {
- while ($ulsfn=readdir(LSDIR)) {
- undef $obs, $rights;
- my @ulsstats=stat($ulsdir.'/'.$ulsfn);
- #We do some obsolete checking here
- if(-e $ulsdir.'/'.$ulsfn.".meta") {
- open(FILE, $ulsdir.'/'.$ulsfn.".meta");
- my @obsolete=<FILE>;
- foreach my $obsolete (@obsolete) {
- if($obsolete =~ m|(<obsolete>)(on)|) { $obs = 1; }
- if($obsolete =~ m|(<copyright>)(default)|) { $rights = 1; }
- }
- }
- $ulsout.=$ulsfn.'&'.join('&',@ulsstats);
- if($obs eq '1') { $ulsout.="&1"; }
- else { $ulsout.="&0"; }
- if($rights eq '1') { $ulsout.="&1:"; }
- else { $ulsout.="&0:"; }
- }
- closedir(LSDIR);
- }
- } else {
- my @ulsstats=stat($ulsdir);
- $ulsout.=$ulsfn.'&'.join('&',@ulsstats).':';
- }
- } else {
- $ulsout='no_such_dir';
- }
- if ($ulsout eq '') { $ulsout='empty'; }
- print $client "$ulsout\n";
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# ----------------------------------------------------------------- setannounce
- } elsif ($userinput =~ /^setannounce/) {
- if (isClient) {
- my ($cmd,$announcement)=split(/:/,$userinput);
- chomp($announcement);
- $announcement=&unescape($announcement);
- if (my $store=IO::File->new('>'.$perlvar{'lonDocRoot'}.
- '/announcement.txt')) {
- print $store $announcement;
- close $store;
- print $client "ok\n";
- } else {
- print $client "error: ".($!+0)."\n";
- }
- } else {
- Reply($client, "refused\n", $userinput);
-
- }
-# ------------------------------------------------------------------ Hanging up
- } elsif (($userinput =~ /^exit/) ||
- ($userinput =~ /^init/)) { # no restrictions.
- &logthis(
- "Client $clientip ($clientname) hanging up: $userinput");
- print $client "bye\n";
- $client->shutdown(2); # shutdown the socket forcibly.
- $client->close();
- last;
-
-# ---------------------------------- set current host/domain
- } elsif ($userinput =~ /^sethost:/) {
- if (isClient) {
- print $client &sethost($userinput)."\n";
- } else {
- print $client "refused\n";
- }
-#---------------------------------- request file (?) version.
- } elsif ($userinput =~/^version:/) {
- if (isClient) {
- print $client &version($userinput)."\n";
- } else {
- print $client "refused\n";
+ &logthis('<font color="yellow">'
+ ."Attempted insecure connection disallowed </font>");
+ close $client;
+ $clientok = 0;
+
}
-#------------------------------- is auto-enrollment enabled?
- } elsif ($userinput =~/^autorun:/) {
- if (isClient) {
- my ($cmd,$cdom) = split(/:/,$userinput);
- my $outcome = &localenroll::run($cdom);
- print $client "$outcome\n";
- } else {
- print $client "0\n";
- }
-#------------------------------- get official sections (for auto-enrollment).
- } elsif ($userinput =~/^autogetsections:/) {
- if (isClient) {
- my ($cmd,$coursecode,$cdom)=split(/:/,$userinput);
- my @secs = &localenroll::get_sections($coursecode,$cdom);
- my $seclist = &escape(join(':',@secs));
- print $client "$seclist\n";
- } else {
- print $client "refused\n";
- }
-#----------------------- validate owner of new course section (for auto-enrollment).
- } elsif ($userinput =~/^autonewcourse:/) {
- if (isClient) {
- my ($cmd,$inst_course_id,$owner,$cdom)=split(/:/,$userinput);
- my $outcome = &localenroll::new_course($inst_course_id,$owner,$cdom);
- print $client "$outcome\n";
- } else {
- print $client "refused\n";
- }
-#-------------- validate course section in schedule of classes (for auto-enrollment).
- } elsif ($userinput =~/^autovalidatecourse:/) {
- if (isClient) {
- my ($cmd,$inst_course_id,$cdom)=split(/:/,$userinput);
- my $outcome=&localenroll::validate_courseID($inst_course_id,$cdom);
- print $client "$outcome\n";
- } else {
- print $client "refused\n";
- }
-#--------------------------- create password for new user (for auto-enrollment).
- } elsif ($userinput =~/^autocreatepassword:/) {
- if (isClient) {
- my ($cmd,$authparam,$cdom)=split(/:/,$userinput);
- my ($create_passwd,$authchk);
- ($authparam,$create_passwd,$authchk) = &localenroll::create_password($authparam,$cdom);
- print $client &escape($authparam.':'.$create_passwd.':'.$authchk)."\n";
- } else {
- print $client "refused\n";
- }
-#--------------------------- read and remove temporary files (for auto-enrollment).
- } elsif ($userinput =~/^autoretrieve:/) {
- if (isClient) {
- my ($cmd,$filename) = split(/:/,$userinput);
- my $source = $perlvar{'lonDaemons'}.'/tmp/'.$filename;
- if ( (-e $source) && ($filename ne '') ) {
- my $reply = '';
- if (open(my $fh,$source)) {
- while (<$fh>) {
- chomp($_);
- $_ =~ s/^\s+//g;
- $_ =~ s/\s+$//g;
- $reply .= $_;
- }
- close($fh);
- print $client &escape($reply)."\n";
-# unlink($source);
- } else {
- print $client "error\n";
- }
- } else {
- print $client "error\n";
- }
- } else {
- print $client "refused\n";
- }
-#--------------------- read and retrieve institutional code format (for support form).
- } elsif ($userinput =~/^autoinstcodeformat:/) {
- if (isClient) {
- my $reply;
- my($cmd,$cdom,$course) = split(/:/,$userinput);
- my @pairs = split/\&/,$course;
- my %instcodes = ();
- my %codes = ();
- my @codetitles = ();
- my %cat_titles = ();
- my %cat_order = ();
- foreach (@pairs) {
- my ($key,$value) = split/=/,$_;
- $instcodes{&unescape($key)} = &unescape($value);
- }
- my $formatreply = &localenroll::instcode_format($cdom,\%instcodes,\%codes,\@codetitles,\%cat_titles,\%cat_order);
- if ($formatreply eq 'ok') {
- my $codes_str = &hash2str(%codes);
- my $codetitles_str = &array2str(@codetitles);
- my $cat_titles_str = &hash2str(%cat_titles);
- my $cat_order_str = &hash2str(%cat_order);
- print $client $codes_str.':'.$codetitles_str.':'.$cat_titles_str.':'.$cat_order_str."\n";
- }
- } else {
- print $client "refused\n";
- }
-# ------------------------------------------------------------- unknown command
-
- } else {
- # unknown command
- print $client "unknown_cmd\n";
}
-# -------------------------------------------------------------------- complete
+ } else {
+ &logthis(
+ "<font color='blue'>WARNING: "
+ ."$clientip failed to initialize: >$remotereq< </font>");
+ &status('No init '.$clientip);
+ }
+
+ } else {
+ &logthis(
+ "<font color='blue'>WARNING: Unknown client $clientip</font>");
+ &status('Hung up on '.$clientip);
+ }
+
+ if ($clientok) {
+# ---------------- New known client connecting, could mean machine online again
+
+ foreach my $id (keys(%hostip)) {
+ if ($hostip{$id} ne $clientip ||
+ $hostip{$currenthostid} eq $clientip) {
+ # no need to try to do recon's to myself
+ next;
+ }
+ &reconlonc("$perlvar{'lonSockDir'}/$id");
+ }
+ &logthis("<font color='green'>Established connection: $clientname</font>");
+ &status('Will listen to '.$clientname);
+# ------------------------------------------------------------ Process requests
+ my $keep_going = 1;
+ my $user_input;
+ while(($user_input = get_request) && $keep_going) {
+ alarm(120);
+ Debug("Main: Got $user_input\n");
+ $keep_going = &process_request($user_input);
alarm(0);
- &status('Listening to '.$clientname." ($keymode)");
+ &status('Listening to '.$clientname." ($keymode)");
}
+
# --------------------------------------------- client unknown or fishy, refuse
- } else {
+ } else {
print $client "refused\n";
$client->close();
&logthis("<font color='blue'>WARNING: "
."Rejected client $clientip, closing connection</font>");
}
- }
+ }
# =============================================================================
--foxr1090923907--