--- loncom/lond 2014/06/09 19:47:51 1.489.2.15
+++ loncom/lond 2012/04/26 19:51:40 1.492
@@ -2,7 +2,7 @@
# The LearningOnline Network
# lond "LON Daemon" Server (port "LOND" 5663)
#
-# $Id: lond,v 1.489.2.15 2014/06/09 19:47:51 raeburn Exp $
+# $Id: lond,v 1.492 2012/04/26 19:51:40 droeschl Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -61,7 +61,7 @@ my $DEBUG = 0; # Non zero to ena
my $status='';
my $lastlog='';
-my $VERSION='$Revision: 1.489.2.15 $'; #' stupid emacs
+my $VERSION='$Revision: 1.492 $'; #' stupid emacs
my $remoteVERSION;
my $currenthostid="default";
my $currentdomainid;
@@ -130,13 +130,32 @@ my @passwderrors = ("ok",
"pwchange_failure - lcpasswd Error filename is invalid");
+# The array below are lcuseradd error strings.:
+
+my $lastadderror = 13;
+my @adderrors = ("ok",
+ "User ID mismatch, lcuseradd must run as user www",
+ "lcuseradd Incorrect number of command line parameters must be 3",
+ "lcuseradd Incorrect number of stdinput lines, must be 3",
+ "lcuseradd Too many other simultaneous pwd changes in progress",
+ "lcuseradd User does not exist",
+ "lcuseradd Unable to make www member of users's group",
+ "lcuseradd Unable to su to root",
+ "lcuseradd Unable to set password",
+ "lcuseradd Username has invalid characters",
+ "lcuseradd Password has an invalid character",
+ "lcuseradd User already exists",
+ "lcuseradd Could not add user.",
+ "lcuseradd Password mismatch");
+
+
# This array are the errors from lcinstallfile:
my @installerrors = ("ok",
"Initial user id of client not that of www",
"Usage error, not enough command line arguments",
- "Source filename does not exist",
- "Destination filename does not exist",
+ "Source file name does not exist",
+ "Destination file name does not exist",
"Some file operation failed",
"Invalid table filename."
);
@@ -621,7 +640,7 @@ sub ConfigFileFromSelector {
# String to send to client ("ok" or "refused" if bad file).
#
sub PushFile {
- my $request = shift;
+ my $request = shift;
my ($command, $filename, $contents) = split(":", $request, 3);
&Debug("PushFile");
@@ -651,44 +670,6 @@ sub PushFile {
if($filename eq "host") {
$contents = AdjustHostContents($contents);
- } elsif ($filename eq 'dns_host' || $filename eq 'dns_domain') {
- if ($contents eq '') {
- &logthis(' Pushfile: unable to install '
- .$tablefile." - no data received from push. ");
- return 'error: push had no data';
- }
- if (&Apache::lonnet::get_host_ip($clientname)) {
- my $clienthost = &Apache::lonnet::hostname($clientname);
- if ($managers{$clientip} eq $clientname) {
- my $clientprotocol = $Apache::lonnet::protocol{$clientname};
- $clientprotocol = 'http' if ($clientprotocol ne 'https');
- my $url = '/adm/'.$filename;
- $url =~ s{_}{/};
- my $ua=new LWP::UserAgent;
- $ua->timeout(60);
- my $request=new HTTP::Request('GET',"$clientprotocol://$clienthost$url");
- my $response=$ua->request($request);
- if ($response->is_error()) {
- &logthis(' Pushfile: unable to install '
- .$tablefile." - error attempting to pull data. ");
- return 'error: pull failed';
- } else {
- my $result = $response->content;
- chomp($result);
- unless ($result eq $contents) {
- &logthis(' Pushfile: unable to install '
- .$tablefile." - pushed data and pulled data differ. ");
- my $pushleng = length($contents);
- my $pullleng = length($result);
- if ($pushleng != $pullleng) {
- return "error: $pushleng vs $pullleng bytes";
- } else {
- return "error: mismatch push and pull";
- }
- }
- }
- }
- }
}
# Install the new file:
@@ -1723,14 +1704,8 @@ sub read_lonnet_global {
sub server_devalidatecache_handler {
my ($cmd,$tail,$client) = @_;
my $userinput = "$cmd:$tail";
- my $items = &unescape($tail);
- my @cached = split(/\&/,$items);
- foreach my $key (@cached) {
- if ($key =~ /:/) {
- my ($name,$id) = map { &unescape($_); } split(/:/,$key);
- &Apache::lonnet::devalidate_cache_new($name,$id);
- }
- }
+ my ($name,$id) = map { &unescape($_); } split(/:/,$tail);
+ &Apache::lonnet::devalidate_cache_new($name,$id);
my $result = 'ok';
&Reply($client,\$result,$userinput);
return 1;
@@ -1932,12 +1907,8 @@ sub authenticate_handler {
if (ref($hostedsession) eq 'HASH') {
$hosted = $hostedsession->{'hosted'};
}
- my $loncaparev = $clientversion;
- if ($loncaparev eq '') {
- $loncaparev = $Apache::lonnet::loncaparevs{$clientname};
- }
$canhost = &Apache::lonnet::can_host_session($udom,$clientname,
- $loncaparev,
+ $clientversion,
$remote,$hosted);
}
}
@@ -2160,9 +2131,10 @@ sub change_authentication_handler {
my $passfilename = &password_path($udom, $uname);
if ($passfilename) { # Not allowed to create a new user!!
# If just changing the unix passwd. need to arrange to run
- # passwd since otherwise make_passwd_file will fail as
- # creation of unix authenticated users is no longer supported
- # except from the command line, when running make_domain_coordinator.pl
+ # passwd since otherwise make_passwd_file will run
+ # lcuseradd which fails if an account already exists
+ # (to prevent an unscrupulous LONCAPA admin from stealing
+ # an existing account by overwriting it as a LonCAPA account).
if(($oldauth =~/^unix/) && ($umode eq "unix")) {
my $result = &change_unix_password($uname, $npass);
@@ -2180,8 +2152,15 @@ sub change_authentication_handler {
# re-run manage_permissions for that role in order to be able
# to take ownership of the construction space back to www:www
#
-
-
+
+
+ if( (($oldauth =~ /^unix/) && ($umode eq "internal")) ||
+ (($oldauth =~ /^internal/) && ($umode eq "unix")) ) {
+ if(&is_author($udom, $uname)) {
+ &Debug(" Need to manage author permissions...");
+ &manage_permissions("/$udom/_au", $udom, $uname, "$umode:");
+ }
+ }
&Reply($client, \$result, $userinput);
}
@@ -2391,24 +2370,6 @@ sub fetch_user_file_handler {
unlink($transname);
&Failure($client, "failed\n", $userinput);
} else {
- if ($fname =~ /^default.+\.(page|sequence)$/) {
- my ($major,$minor) = split(/\./,$clientversion);
- if (($major < 2) || ($major == 2 && $minor < 11)) {
- my $now = time;
- &Apache::lonnet::do_cache_new('crschange',$udom.'_'.$uname,$now,600);
- my $key = &escape('internal.contentchange');
- my $what = "$key=$now";
- my $hashref = &tie_user_hash($udom,$uname,'environment',
- &GDBM_WRCREAT(),"P",$what);
- if ($hashref) {
- $hashref->{$key}=$now;
- if (!&untie_user_hash($hashref)) {
- &logthis("error: ".($!+0)." untie (GDBM) failed ".
- "when updating internal.contentchange");
- }
- }
- }
- }
&Reply($client, "ok\n", $userinput);
}
}
@@ -3293,12 +3254,12 @@ sub dump_profile_database {
sub dump_with_regexp {
my ($cmd, $tail, $client) = @_;
- my $res = LONCAPA::Lond::dump_with_regexp($tail, $clientversion);
-
+ my $res = LONCAPA::Lond::dump_with_regexp($tail, $clientname, $clientversion);
+
if ($res =~ /^error:/) {
- &Failure($client, \$res, "$cmd:$tail");
+ Failure($client, \$res, "$cmd:$tail");
} else {
- &Reply($client, \$res, "$cmd:$tail");
+ Reply($client, \$res, "$cmd:$tail");
}
return 1;
@@ -3868,9 +3829,7 @@ sub put_course_id_hash_handler {
# creationcontext - include courses created in specified context
#
# domcloner - flag to indicate if user can create CCs in course's domain.
-# If so, ability to clone course is automatic.
-# hasuniquecode - filter by courses for which a six character unique code has
-# been set.
+# If so, ability to clone course is automatic.
#
# $client - The socket open on the client.
# Returns:
@@ -3884,7 +3843,7 @@ sub dump_course_id_handler {
my ($udom,$since,$description,$instcodefilter,$ownerfilter,$coursefilter,
$typefilter,$regexp_ok,$rtn_as_hash,$selfenrollonly,$catfilter,$showhidden,
$caller,$cloner,$cc_clone_list,$cloneonly,$createdbefore,$createdafter,
- $creationcontext,$domcloner,$hasuniquecode) =split(/:/,$tail);
+ $creationcontext,$domcloner) =split(/:/,$tail);
my $now = time;
my ($cloneruname,$clonerudom,%cc_clone);
if (defined($description)) {
@@ -3957,9 +3916,6 @@ sub dump_course_id_handler {
} else {
$creationcontext = '.';
}
- unless ($hasuniquecode) {
- $hasuniquecode = '.';
- }
my $unpack = 1;
if ($description eq '.' && $instcodefilter eq '.' && $ownerfilter eq '.' &&
$typefilter eq '.') {
@@ -4048,9 +4004,6 @@ sub dump_course_id_handler {
$selfenroll_end = $items->{'selfenroll_end_date'};
$created = $items->{'created'};
$context = $items->{'context'};
- if ($hasuniquecode ne '.') {
- next unless ($items->{'uniquecode'});
- }
if ($selfenrollonly) {
next if (!$selfenroll_types);
if (($selfenroll_end > 0) && ($selfenroll_end <= $now)) {
@@ -4473,49 +4426,6 @@ sub get_id_handler {
}
®ister_handler("idget", \&get_id_handler, 0, 1, 0);
-# Deletes one or more ids in a domain's id database.
-#
-# Parameters:
-# $cmd - Command keyword (iddel).
-# $tail - Command tail. In this case a colon
-# separated list containing:
-# The domain for which we are deleting the id(s).
-# &-separated list of id(s) to delete.
-# $client - File open on client socket.
-# Returns:
-# 1 - Continue processing
-# 0 - Exit server.
-#
-#
-
-sub del_id_handler {
- my ($cmd,$tail,$client) = @_;
-
- my $userinput = "$cmd:$tail";
-
- my ($udom,$what)=split(/:/,$tail);
- chomp($what);
- my $hashref = &tie_domain_hash($udom, "ids", &GDBM_WRCREAT(),
- "D", $what);
- if ($hashref) {
- my @keys=split(/\&/,$what);
- foreach my $key (@keys) {
- delete($hashref->{$key});
- }
- if (&untie_user_hash($hashref)) {
- &Reply($client, "ok\n", $userinput);
- } else {
- &Failure($client, "error: ".($!+0)." untie(GDBM) Failed ".
- "while attempting iddel\n", $userinput);
- }
- } else {
- &Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ".
- "while attempting iddel\n", $userinput);
- }
- return 1;
-}
-®ister_handler("iddel", \&del_id_handler, 0, 1, 0);
-
#
# Puts broadcast e-mail sent by Domain Coordinator in nohist_dcmail database
#
@@ -5064,10 +4974,9 @@ sub validate_instcode_handler {
my ($dom,$instcode,$owner) = split(/:/, $tail);
$instcode = &unescape($instcode);
$owner = &unescape($owner);
- my ($outcome,$description,$credits) =
+ my ($outcome,$description) =
&localenroll::validate_instcode($dom,$instcode,$owner);
- my $result = &escape($outcome).'&'.&escape($description).'&'.
- &escape($credits);
+ my $result = &escape($outcome).'&'.&escape($description);
&Reply($client, \$result, $userinput);
return 1;
@@ -5283,7 +5192,7 @@ sub crsreq_checks_handler {
my $userinput = "$cmd:$tail";
my $dom = $tail;
my $result;
- my @reqtypes = ('official','unofficial','community','textbook');
+ my @reqtypes = ('official','unofficial','community');
eval {
local($SIG{__DIE__})='DEFAULT';
my %validations;
@@ -5310,20 +5219,19 @@ sub crsreq_checks_handler {
sub validate_crsreq_handler {
my ($cmd, $tail, $client) = @_;
my $userinput = "$cmd:$tail";
- my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist,$customdata) = split(/:/, $tail);
+ my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist) = split(/:/, $tail);
$instcode = &unescape($instcode);
$owner = &unescape($owner);
$crstype = &unescape($crstype);
$inststatuslist = &unescape($inststatuslist);
$instcode = &unescape($instcode);
$instseclist = &unescape($instseclist);
- my $custominfo = &Apache::lonnet::thaw_unescape($customdata);
my $outcome;
eval {
local($SIG{__DIE__})='DEFAULT';
$outcome = &localenroll::validate_crsreq($dom,$owner,$crstype,
$inststatuslist,$instcode,
- $instseclist,$custominfo);
+ $instseclist);
};
if (!$@) {
&Reply($client, \$outcome, $userinput);
@@ -5334,53 +5242,6 @@ sub validate_crsreq_handler {
}
®ister_handler("autocrsreqvalidation", \&validate_crsreq_handler, 0, 1, 0);
-sub crsreq_update_handler {
- my ($cmd, $tail, $client) = @_;
- my $userinput = "$cmd:$tail";
- my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title,$code,
- $accessstart,$accessend,$infohashref) =
- split(/:/, $tail);
- $crstype = &unescape($crstype);
- $action = &unescape($action);
- $ownername = &unescape($ownername);
- $ownerdomain = &unescape($ownerdomain);
- $fullname = &unescape($fullname);
- $title = &unescape($title);
- $code = &unescape($code);
- $accessstart = &unescape($accessstart);
- $accessend = &unescape($accessend);
- my $incoming = &Apache::lonnet::thaw_unescape($infohashref);
- my ($result,$outcome);
- eval {
- local($SIG{__DIE__})='DEFAULT';
- my %rtnhash;
- $outcome = &localenroll::crsreq_updates($cdom,$cnum,$crstype,$action,
- $ownername,$ownerdomain,$fullname,
- $title,$code,$accessstart,$accessend,
- $incoming,\%rtnhash);
- if ($outcome eq 'ok') {
- my @posskeys = qw(createdweb createdmsg queuedweb queuedmsg formitems reviewweb);
- foreach my $key (keys(%rtnhash)) {
- if (grep(/^\Q$key\E/,@posskeys)) {
- $result .= &escape($key).'='.&Apache::lonnet::freeze_escape($rtnhash{$key}).'&';
- }
- }
- $result =~ s/\&$//;
- }
- };
- if (!$@) {
- if ($outcome eq 'ok') {
- &Reply($client, \$result, $userinput);
- } else {
- &Reply($client, "format_error\n", $userinput);
- }
- } else {
- &Failure($client,"unknown_cmd\n",$userinput);
- }
- return 1;
-}
-®ister_handler("autocrsrequpdate", \&crsreq_update_handler, 0, 1, 0);
-
#
# Read and retrieve institutional code format (for support form).
# Formal Parameters:
@@ -6088,6 +5949,18 @@ sub lcpasswdstrerror {
}
}
+#
+# 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)=@_;
@@ -6328,6 +6201,9 @@ sub Debug {
# reply - Text to send to client.
# request - Original request from client.
#
+#NOTE $reply must be terminated by exactly *one* \n. If $reply is a reference
+#this is done automatically ($$reply must not contain any \n in this case).
+#If $reply is a string the caller has to ensure this.
sub Reply {
my ($fd, $reply, $request) = @_;
if (ref($reply)) {
@@ -6574,9 +6450,7 @@ sub make_new_child {
#---------------------------------------------------- kerberos 5 initialization
&Authen::Krb5::init_context();
unless (($dist eq 'fedora5') || ($dist eq 'fedora4') ||
- ($dist eq 'fedora6') || ($dist eq 'suse9.3') ||
- ($dist eq 'suse12.2') || ($dist eq 'suse12.3') ||
- ($dist eq 'suse13.1')) {
+ ($dist eq 'fedora6') || ($dist eq 'suse9.3')) {
&Authen::Krb5::init_ets();
}
@@ -6622,12 +6496,10 @@ sub make_new_child {
# If the remote is attempting a local init... give that a try:
#
(my $i, my $inittype, $clientversion) = split(/:/, $remotereq);
- # For LON-CAPA 2.9, the client session will have sent its LON-CAPA
- # version when initiating the connection. For LON-CAPA 2.8 and older,
- # the version is retrieved from the global %loncaparevs in lonnet.pm.
- # $clientversion contains path to keyfile if $inittype eq 'local'
- # it's overridden below in this case
- $clientversion ||= $Apache::lonnet::loncaparevs{$clientname};
+ # For LON-CAPA 2.9, the client session will have sent its LON-CAPA
+ # version when initiating the connection. For LON-CAPA 2.8 and older,
+ # the version is retrieved from the global %loncaparevs in lonnet.pm.
+ $clientversion ||= $Apache::lonnet::loncaparevs{$clientname};
# If the connection type is ssl, but I didn't get my
# certificate files yet, then I'll drop back to
@@ -7378,8 +7250,56 @@ sub make_passwd_file {
}
}
} elsif ($umode eq 'unix') {
- &logthis(">>>Attempt to create unix account blocked -- unix auth not available for new users.");
- $result="no_new_unix_accounts";
+ {
+ #
+ # Don't allow the creation of privileged accounts!!! that would
+ # be real bad!!!
+ #
+ my $uid = getpwnam($uname);
+ if((defined $uid) && ($uid == 0)) {
+ &logthis(">>>Attempt to create privileged account blocked");
+ return "no_priv_account_error\n";
+ }
+
+ my $execpath ="$perlvar{'lonDaemons'}/"."lcuseradd";
+
+ my $lc_error_file = $execdir."/tmp/lcuseradd".$$.".status";
+ {
+ &Debug("Executing external: ".$execpath);
+ &Debug("user = ".$uname.", Password =". $npass);
+ my $se = IO::File->new("|$execpath > $perlvar{'lonDaemons'}/logs/lcuseradd.log");
+ print $se "$uname\n";
+ print $se "$udom\n";
+ print $se "$npass\n";
+ print $se "$npass\n";
+ print $se "$lc_error_file\n"; # Status -> unique file.
+ }
+ if (-r $lc_error_file) {
+ &Debug("Opening error file: $lc_error_file");
+ my $error = IO::File->new("< $lc_error_file");
+ my $useraddok = <$error>;
+ $error->close;
+ unlink($lc_error_file);
+
+ chomp $useraddok;
+
+ if($useraddok > 0) {
+ my $error_text = &lcuseraddstrerror($useraddok);
+ &logthis("Failed lcuseradd: $error_text");
+ $result = "lcuseradd_failed:$error_text";
+ } else {
+ my $pf = IO::File->new(">$passfilename");
+ if($pf) {
+ print $pf "unix:\n";
+ } else {
+ $result = "pass_file_failed_error";
+ }
+ }
+ } else {
+ &Debug("Could not locate lcuseradd error: $lc_error_file");
+ $result="bug_lcuseradd_no_output_file";
+ }
+ }
} elsif ($umode eq 'none') {
{
my $pf = IO::File->new("> $passfilename");
@@ -7444,6 +7364,43 @@ sub get_usersession_config {
}
+#
+# get_courseinfo_hash() is used to retrieve course information from the db
+# file: nohist_courseids.db for a course for which the current server is *not*
+# the home server.
+#
+# A hash of a hash will be retrieved. The outer hash contains a single key --
+# courseID -- for the course for which the data are being requested.
+# The contents of the inner hash, for that single item in the outer hash
+# are returned (and cached in memcache for 10 minutes).
+#
+
+sub get_courseinfo_hash {
+ my ($cnum,$cdom,$home) = @_;
+ my %info;
+ eval {
+ local($SIG{ALRM}) = sub { die "timeout\n"; };
+ local($SIG{__DIE__})='DEFAULT';
+ alarm(3);
+ %info = &Apache::lonnet::courseiddump($cdom,'.',1,'.','.',$cnum,1,[$home],'.');
+ alarm(0);
+ };
+ if ($@) {
+ if ($@ eq "timeout\n") {
+ &logthis("WARNING courseiddump for $cnum:$cdom from $home timedout");
+ } else {
+ &logthis("WARNING unexpected error during eval of call for courseiddump from $home");
+ }
+ } else {
+ if (ref($info{$cdom.'_'.$cnum}) eq 'HASH') {
+ my $hashid = $cdom.':'.$cnum;
+ return &Apache::lonnet::do_cache_new('courseinfo',$hashid,$info{$cdom.'_'.$cnum},600);
+ }
+ }
+ return;
+}
+
+
sub distro_and_arch {
return $dist.':'.$arch;
}
@@ -7655,7 +7612,7 @@ Place in B
stores hash in namespace
-=item rolesput
+=item rolesputy
put a role into a user's environment
@@ -7772,6 +7729,8 @@ Authen::Krb5
=head1 COREQUISITES
+none
+
=head1 OSNAMES
linux
@@ -7859,9 +7818,9 @@ or the CA's certificate in the call to l
is the textual reason this failed. Usual reasons:
=over 2
-
+
=item Apache config file for loncapa incorrect:
-
+
one of the variables
lonCertificateDirectory, lonnetCertificateAuthority, or lonnetCertificate
undefined or incorrect
@@ -7980,7 +7939,7 @@ Could not rewrite the
internal password file for a user
=item Result of password change for :
-
+
A unix password change for was attempted
and the pipe returned
@@ -8009,7 +7968,7 @@ lond has been asked to exit by its clien
client systemand is the full exit command sent to the server.
=item Red CRITICAL: ABNORMAL EXIT. child for server died through a crass with this error->[].
-
+
A lond child terminated. NOte that this termination can also occur when the
child receives the QUIT or DIE signals. is the process id of the child,
the host lond is working for, and the reason the child died
@@ -8093,7 +8052,7 @@ file when sent it's USR1 signal. That p
assumed to be hung in some un-fixable way.
=item Finished checking children
-
+
Master processs's USR1 processing is cojmplete.
=item (Red) CRITICAL: ------- Starting ------
@@ -8107,7 +8066,7 @@ Started a new child process for
connected to the child. This was as a result of a TCP/IP connection from a client.
=item Unable to determine who caller was, getpeername returned nothing
-
+
In child process initialization. either getpeername returned undef or
a zero sized object was returned. Processing continues, but in my opinion,
this should be cause for the child to exit.
@@ -8118,7 +8077,7 @@ In child process initialization. The pe
The client address is stored as "Unavailable" and processing continues.
=item (Yellow) INFO: Connection connection type =
-
+
In child initialization. A good connectionw as received from .
=over 2
@@ -8168,7 +8127,7 @@ The client ( is the peer's name
negotiated an SSL connection with this child process.
=item (Green) Successful insecure authentication with
-
+
The client has successfully negotiated an insecure connection withthe child process.