loncom/lond - diff

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Diff for /loncom/lond between versions 1.422 and 1.511

version 1.422, 2009/08/18 20:08:13	version 1.511, 2014/06/29 03:22:43
Line 15	Line 15
#	#
# LON-CAPA is distributed in the hope that it will be useful,	# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of	# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.	# GNU General Public License for more details.
#	#
Line 33 use strict;	Line 34 use strict;
use lib '/home/httpd/lib/perl/';	use lib '/home/httpd/lib/perl/';
use LONCAPA;	use LONCAPA;
use LONCAPA::Configuration;	use LONCAPA::Configuration;
	use LONCAPA::Lond;

use IO::Socket;	use IO::Socket;
use IO::File;	use IO::File;
Line 42 use Crypt::IDEA;	Line 44 use Crypt::IDEA;
use LWP::UserAgent();	use LWP::UserAgent();
use Digest::MD5 qw(md5_hex);	use Digest::MD5 qw(md5_hex);
use GDBM_File;	use GDBM_File;
use Authen::Krb4;
use Authen::Krb5;	use Authen::Krb5;
use localauth;	use localauth;
use localenroll;	use localenroll;
Line 53 use LONCAPA::lonlocal;	Line 54 use LONCAPA::lonlocal;
use LONCAPA::lonssl;	use LONCAPA::lonssl;
use Fcntl qw(:flock);	use Fcntl qw(:flock);
use Apache::lonnet;	use Apache::lonnet;
	use Mail::Send;

my $DEBUG = 0; # Non zero to enable debug log entries.	my $DEBUG = 0; # Non zero to enable debug log entries.

Line 67 my $currentdomainid;	Line 69 my $currentdomainid;
my $client;	my $client;
my $clientip; # IP address of client.	my $clientip; # IP address of client.
my $clientname; # LonCAPA name of client.	my $clientname; # LonCAPA name of client.
	my $clientversion; # LonCAPA version running on client.
	my $clienthomedom; # LonCAPA domain of homeID for client.
	# primary library server.

my $server;	my $server;

Line 88 my %managers; # Ip -> manager names	Line 93 my %managers; # Ip -> manager names

my %perlvar; # Will have the apache conf defined perl vars.	my %perlvar; # Will have the apache conf defined perl vars.

	my $dist;

#	#
# The hash below is used for command dispatching, and is therefore keyed on the request keyword.	# The hash below is used for command dispatching, and is therefore keyed on the request keyword.
# Each element of the hash contains a reference to an array that contains:	# Each element of the hash contains a reference to an array that contains:
Line 123 my @passwderrors = ("ok",	Line 130 my @passwderrors = ("ok",
"pwchange_failure - lcpasswd Error filename is invalid");	"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:	# This array are the errors from lcinstallfile:

my @installerrors = ("ok",	my @installerrors = ("ok",
"Initial user id of client not that of www",	"Initial user id of client not that of www",
"Usage error, not enough command line arguments",	"Usage error, not enough command line arguments",
"Source file name does not exist",	"Source filename does not exist",
"Destination file name does not exist",	"Destination filename does not exist",
"Some file operation failed",	"Some file operation failed",
"Invalid table filename."	"Invalid table filename."
);	);
Line 417 sub ReadManagerTable {	Line 405 sub ReadManagerTable {

my $tablename = $perlvar{'lonTabDir'}."/managers.tab";	my $tablename = $perlvar{'lonTabDir'}."/managers.tab";
if (!open (MANAGERS, $tablename)) {	if (!open (MANAGERS, $tablename)) {
logthis('<font color="red">No manager table. Nobody can manage!!</font>');	my $hostname = &Apache::lonnet::hostname($perlvar{'lonHostID'});
return;	if (&Apache::lonnet::is_LC_dns($hostname)) {
	&logthis('<font color="red">No manager table. Nobody can manage!!</font>');
	}
	return;
}	}
while(my $host = <MANAGERS>) {	while(my $host = <MANAGERS>) {
chomp($host);	chomp($host);
Line 443 sub ReadManagerTable {	Line 434 sub ReadManagerTable {
}	}
} else {	} else {
logthis('<font color="green"> existing host'." $host</font>\n");	logthis('<font color="green"> existing host'." $host</font>\n");
$managers{&Apache::lonnet::get_host_ip($host)} = $host; # Use info from cluster tab if clumemeber	$managers{&Apache::lonnet::get_host_ip($host)} = $host; # Use info from cluster tab if cluster memeber
}	}
}	}
}	}
Line 505 sub AdjustHostContents {	Line 496 sub AdjustHostContents {
my $me = $perlvar{'lonHostID'};	my $me = $perlvar{'lonHostID'};

foreach my $line (split(/\n/,$contents)) {	foreach my $line (split(/\n/,$contents)) {
if(!(($line eq "") \|\| ($line =~ /^ \#/) \|\| ($line =~ /^ $/))) {	if(!(($line eq "") \|\| ($line =~ /^ \#/) \|\| ($line =~ /^ $/) \|\|
	($line =~ /^\s*\^/))) {
chomp($line);	chomp($line);
my ($id,$domain,$role,$name,$ip,$maxcon,$idleto,$mincon)=split(/:/,$line);	my ($id,$domain,$role,$name,$ip,$maxcon,$idleto,$mincon)=split(/:/,$line);
if ($id eq $me) {	if ($id eq $me) {
Line 593 sub InstallFile {	Line 585 sub InstallFile {
#	#
# ConfigFileFromSelector: converts a configuration file selector	# ConfigFileFromSelector: converts a configuration file selector
# into a configuration file pathname.	# into a configuration file pathname.
# It's probably no longer necessary to preserve	# Supports the following file selectors:
# special handling of hosts or domain as those	# hosts, domain, dns_hosts, dns_domain
# files have been superceded by dns_hosts, dns_domain.
# The default action is just to prepend the directory
# and append .tab
#	#
#	#
# Parameters:	# Parameters:
Line 610 sub ConfigFileFromSelector {	Line 599 sub ConfigFileFromSelector {
my $tablefile;	my $tablefile;

my $tabledir = $perlvar{'lonTabDir'}.'/';	my $tabledir = $perlvar{'lonTabDir'}.'/';
if ($selector eq "hosts") {	if (($selector eq "hosts") \|\| ($selector eq "domain") \|\|
$tablefile = $tabledir."hosts.tab";	($selector eq "dns_hosts") \|\| ($selector eq "dns_domain")) {
} elsif ($selector eq "domain") {
$tablefile = $tabledir."domain.tab";
} else {
$tablefile = $tabledir.$selector.'.tab';	$tablefile = $tabledir.$selector.'.tab';
}	}
return $tablefile;	return $tablefile;

}	}
#	#
# PushFile: Called to do an administrative push of a file.	# PushFile: Called to do an administrative push of a file.
Line 636 sub ConfigFileFromSelector {	Line 621 sub ConfigFileFromSelector {
# String to send to client ("ok" or "refused" if bad file).	# String to send to client ("ok" or "refused" if bad file).
#	#
sub PushFile {	sub PushFile {
my $request = shift;	my $request = shift;
my ($command, $filename, $contents) = split(":", $request, 3);	my ($command, $filename, $contents) = split(":", $request, 3);
&Debug("PushFile");	&Debug("PushFile");

Line 644 sub PushFile {	Line 629 sub PushFile {
# supported:	# supported:
# hosts.tab ($filename eq host).	# hosts.tab ($filename eq host).
# domain.tab ($filename eq domain).	# domain.tab ($filename eq domain).
	# dns_hosts.tab ($filename eq dns_host).
	# dns_domain.tab ($filename eq dns_domain).
# Construct the destination filename or reject the request.	# Construct the destination filename or reject the request.
#	#
# lonManage is supposed to ensure this, however this session could be	# lonManage is supposed to ensure this, however this session could be
Line 664 sub PushFile {	Line 651 sub PushFile {

if($filename eq "host") {	if($filename eq "host") {
$contents = AdjustHostContents($contents);	$contents = AdjustHostContents($contents);
	} elsif ($filename eq 'dns_host' \|\| $filename eq 'dns_domain') {
	if ($contents eq '') {
	&logthis('<font color="red"> Pushfile: unable to install '
	.$tablefile." - no data received from push. </font>");
	return 'error: push had no data';
	}
	if (&Apache::lonnet::get_host_ip($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('<font color="red"> Pushfile: unable to install '
	.$tablefile." - error attempting to pull data. </font>");
	return 'error: pull failed';
	} else {
	my $result = $response->content;
	chomp($result);
	unless ($result eq $contents) {
	&logthis('<font color="red"> Pushfile: unable to install '
	.$tablefile." - pushed data and pulled data differ. </font>");
	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:	# Install the new file:
Line 675 sub PushFile {	Line 700 sub PushFile {
return "error:$!";	return "error:$!";
} else {	} else {
&logthis('<font color="green"> Installed new '.$tablefile	&logthis('<font color="green"> Installed new '.$tablefile
."</font>");	." - transaction by: $clientname ($clientip)</font>");
	my $adminmail = $perlvar{'lonAdmEMail'};
	my $admindom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
	if ($admindom ne '') {
	my %domconfig =
	&Apache::lonnet::get_dom('configuration',['contacts'],$admindom);
	if (ref($domconfig{'contacts'}) eq 'HASH') {
	if ($domconfig{'contacts'}{'adminemail'} ne '') {
	$adminmail = $domconfig{'contacts'}{'adminemail'};
	}
	}
	}
	if ($adminmail =~ /^[^\@]+\@[^\@]+$/) {
	my $msg = new Mail::Send;
	$msg->to($adminmail);
	$msg->subject('LON-CAPA DNS update on '.$perlvar{'lonHostID'});
	$msg->add('Content-type','text/plain; charset=UTF-8');
	if (my $fh = $msg->open()) {
	print $fh 'Update to '.$tablefile.' from Cluster Manager '.
	"$clientname ($clientip)\n";
	$fh->close;
	}
	}
}	}


# Indicate success:	# Indicate success:

return "ok";	return "ok";
Line 975 sub read_profile {	Line 1020 sub read_profile {
&GDBM_READER());	&GDBM_READER());
if ($hashref) {	if ($hashref) {
my @queries=split(/\&/,$what);	my @queries=split(/\&/,$what);
	if ($namespace eq 'roles') {
	@queries = map { &unescape($_); } @queries;
	}
my $qresult='';	my $qresult='';

for (my $i=0;$i<=$#queries;$i++) {	for (my $i=0;$i<=$#queries;$i++) {
Line 1068 sub pong_handler {	Line 1116 sub pong_handler {
# Implicit Inputs:	# Implicit Inputs:
# $currenthostid - Global variable that carries the name of the host	# $currenthostid - Global variable that carries the name of the host
# known as.	# known as.
# $clientname - Global variable that carries the name of the hsot we're connected to.	# $clientname - Global variable that carries the name of the host we're connected to.
# Returns:	# Returns:
# 1 - Ok to continue processing.	# 1 - Ok to continue processing.
# 0 - Program should exit.	# 0 - Program should exit.
Line 1107 sub establish_key_handler {	Line 1155 sub establish_key_handler {
# Implicit Inputs:	# Implicit Inputs:
# $currenthostid - Global variable that carries the name of the host	# $currenthostid - Global variable that carries the name of the host
# known as.	# known as.
# $clientname - Global variable that carries the name of the hsot we're connected to.	# $clientname - Global variable that carries the name of the host we're connected to.
# Returns:	# Returns:
# 1 - Ok to continue processing.	# 1 - Ok to continue processing.
# 0 - Program should exit.	# 0 - Program should exit.
Line 1116 sub establish_key_handler {	Line 1164 sub establish_key_handler {
sub load_handler {	sub load_handler {
my ($cmd, $tail, $replyfd) = @_;	my ($cmd, $tail, $replyfd) = @_;



# Get the load average from /proc/loadavg and calculate it as a percentage of	# Get the load average from /proc/loadavg and calculate it as a percentage of
# the allowed load limit as set by the perl global variable lonLoadLim	# the allowed load limit as set by the perl global variable lonLoadLim

Line 1144 sub load_handler {	Line 1194 sub load_handler {
# Implicit Inputs:	# Implicit Inputs:
# $currenthostid - Global variable that carries the name of the host	# $currenthostid - Global variable that carries the name of the host
# known as.	# known as.
# $clientname - Global variable that carries the name of the hsot we're connected to.	# $clientname - Global variable that carries the name of the host we're connected to.
# Returns:	# Returns:
# 1 - Ok to continue processing.	# 1 - Ok to continue processing.
# 0 - Program should exit	# 0 - Program should exit
Line 1613 sub ls3_handler {	Line 1663 sub ls3_handler {
}	}
&register_handler("ls3", \&ls3_handler, 0, 1, 0);	&register_handler("ls3", \&ls3_handler, 0, 1, 0);

	sub read_lonnet_global {
	my ($cmd,$tail,$client) = @_;
	my $userinput = "$cmd:$tail";
	my $requested = &Apache::lonnet::thaw_unescape($tail);
	my $result;
	my %packagevars = (
	spareid => \%Apache::lonnet::spareid,
	perlvar => \%Apache::lonnet::perlvar,
	);
	my %limit_to = (
	perlvar => {
	lonOtherAuthen => 1,
	lonBalancer => 1,
	lonVersion => 1,
	lonSysEMail => 1,
	lonHostID => 1,
	lonRole => 1,
	lonDefDomain => 1,
	lonLoadLim => 1,
	lonUserLoadLim => 1,
	}
	);
	if (ref($requested) eq 'HASH') {
	foreach my $what (keys(%{$requested})) {
	my $response;
	my $items = {};
	if (exists($packagevars{$what})) {
	if (ref($limit_to{$what}) eq 'HASH') {
	foreach my $varname (keys(%{$packagevars{$what}})) {
	if ($limit_to{$what}{$varname}) {
	$items->{$varname} = $packagevars{$what}{$varname};
	}
	}
	} else {
	$items = $packagevars{$what};
	}
	if ($what eq 'perlvar') {
	if (!exists($packagevars{$what}{'lonBalancer'})) {
	if ($dist =~ /^(centos\|rhes\|fedora\|scientific)/) {
	my $othervarref=LONCAPA::Configuration::read_conf('httpd.conf');
	if (ref($othervarref) eq 'HASH') {
	$items->{'lonBalancer'} = $othervarref->{'lonBalancer'};
	}
	}
	}
	}
	$response = &Apache::lonnet::freeze_escape($items);
	}
	$result .= &escape($what).'='.$response.'&';
	}
	}
	$result =~ s/\&$//;
	&Reply($client,\$result,$userinput);
	return 1;
	}
	&register_handler("readlonnetglobal", \&read_lonnet_global, 0, 1, 0);

	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 $result = 'ok';
	&Reply($client,\$result,$userinput);
	return 1;
	}
	&register_handler("devalidatecache", \&server_devalidatecache_handler, 0, 1, 0);

sub server_timezone_handler {	sub server_timezone_handler {
my ($cmd,$tail,$client) = @_;	my ($cmd,$tail,$client) = @_;
my $userinput = "$cmd:$tail";	my $userinput = "$cmd:$tail";
Line 1653 sub server_loncaparev_handler {	Line 1777 sub server_loncaparev_handler {
}	}
&register_handler("serverloncaparev", \&server_loncaparev_handler, 0, 1, 0);	&register_handler("serverloncaparev", \&server_loncaparev_handler, 0, 1, 0);

	sub server_homeID_handler {
	my ($cmd,$tail,$client) = @_;
	my $userinput = "$cmd:$tail";
	&Reply($client,\$perlvar{'lonHostID'},$userinput);
	return 1;
	}
	&register_handler("serverhomeID", \&server_homeID_handler, 0, 1, 0);

	sub server_distarch_handler {
	my ($cmd,$tail,$client) = @_;
	my $userinput = "$cmd:$tail";
	my $reply = &distro_and_arch();
	&Reply($client,\$reply,$userinput);
	return 1;
	}
	&register_handler("serverdistarch", \&server_distarch_handler, 0, 1, 0);

# Process a reinit request. Reinit requests that either	# Process a reinit request. Reinit requests that either
# lonc or lond be reinitialized so that an updated	# lonc or lond be reinitialized so that an updated
# host.tab or domain.tab can be processed.	# host.tab or domain.tab can be processed.
Line 1762 sub authenticate_handler {	Line 1903 sub authenticate_handler {
# upass - User's password.	# upass - User's password.
# checkdefauth - Pass to validate_user() to try authentication	# checkdefauth - Pass to validate_user() to try authentication
# with default auth type(s) if no user account.	# with default auth type(s) if no user account.
	# clientcancheckhost - Passed by clients with functionality in lonauth.pm
	# to check if session can be hosted.

my ($udom, $uname, $upass, $checkdefauth)=split(/:/,$tail);	my ($udom, $uname, $upass, $checkdefauth, $clientcancheckhost)=split(/:/,$tail);
&Debug(" Authenticate domain = $udom, user = $uname, password = $upass, checkdefauth = $checkdefauth");	&Debug(" Authenticate domain = $udom, user = $uname, password = $upass, checkdefauth = $checkdefauth");
chomp($upass);	chomp($upass);
$upass=&unescape($upass);	$upass=&unescape($upass);

my $pwdcorrect = &validate_user($udom,$uname,$upass,$checkdefauth);	my $pwdcorrect = &validate_user($udom,$uname,$upass,$checkdefauth);
if($pwdcorrect) {	if($pwdcorrect) {
&Reply( $client, "authorized\n", $userinput);	my $canhost = 1;
	unless ($clientcancheckhost) {
	my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
	my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
	my @intdoms;
	my $internet_names = &Apache::lonnet::get_internet_names($clientname);
	if (ref($internet_names) eq 'ARRAY') {
	@intdoms = @{$internet_names};
	}
	unless ($uint_dom ne '' && grep(/^\Q$uint_dom\E$/,@intdoms)) {
	my ($remote,$hosted);
	my $remotesession = &get_usersession_config($udom,'remotesession');
	if (ref($remotesession) eq 'HASH') {
	$remote = $remotesession->{'remote'}
	}
	my $hostedsession = &get_usersession_config($clienthomedom,'hostedsession');
	if (ref($hostedsession) eq 'HASH') {
	$hosted = $hostedsession->{'hosted'};
	}
	$canhost = &Apache::lonnet::can_host_session($udom,$clientname,
	$clientversion,
	$remote,$hosted);
	}
	}
	if ($canhost) {
	&Reply( $client, "authorized\n", $userinput);
	} else {
	&Reply( $client, "not_allowed_to_host\n", $userinput);
	}
#	#
# Bad credentials: Failed to authorize	# Bad credentials: Failed to authorize
#	#
Line 1815 sub change_password_handler {	Line 1986 sub change_password_handler {
# npass - New password.	# npass - New password.
# context - Context in which this was called	# context - Context in which this was called
# (preferences or reset_by_email).	# (preferences or reset_by_email).
	# lonhost - HostID of server where request originated

my ($udom,$uname,$upass,$npass,$context)=split(/:/,$tail);	my ($udom,$uname,$upass,$npass,$context,$lonhost)=split(/:/,$tail);

$upass=&unescape($upass);	$upass=&unescape($upass);
$npass=&unescape($npass);	$npass=&unescape($npass);
Line 1825 sub change_password_handler {	Line 1997 sub change_password_handler {
# First require that the user can be authenticated with their	# First require that the user can be authenticated with their
# old password unless context was 'reset_by_email':	# old password unless context was 'reset_by_email':

my $validated;	my ($validated,$failure);
if ($context eq 'reset_by_email') {	if ($context eq 'reset_by_email') {
$validated = 1;	if ($lonhost eq '') {
	$failure = 'invalid_client';
	} else {
	$validated = 1;
	}
} else {	} else {
$validated = &validate_user($udom, $uname, $upass);	$validated = &validate_user($udom, $uname, $upass);
}	}
Line 1841 sub change_password_handler {	Line 2017 sub change_password_handler {
$salt=substr($salt,6,2);	$salt=substr($salt,6,2);
my $ncpass=crypt($npass,$salt);	my $ncpass=crypt($npass,$salt);
if(&rewrite_password_file($udom, $uname, "internal:$ncpass")) {	if(&rewrite_password_file($udom, $uname, "internal:$ncpass")) {
&logthis("Result of password change for "	my $msg="Result of password change for $uname: pwchange_success";
."$uname: pwchange_success");	if ($lonhost) {
	$msg .= " - request originated from: $lonhost";
	}
	&logthis($msg);
&Reply($client, "ok\n", $userinput);	&Reply($client, "ok\n", $userinput);
} else {	} else {
&logthis("Unable to open $uname passwd "	&logthis("Unable to open $uname passwd "
Line 1863 sub change_password_handler {	Line 2042 sub change_password_handler {
}	}

} else {	} else {
&Failure( $client, "non_authorized\n", $userinput);	if ($failure eq '') {
	$failure = 'non_authorized';
	}
	&Failure( $client, "$failure\n", $userinput);
}	}

return 1;	return 1;
Line 1913 sub add_user_handler {	Line 2095 sub add_user_handler {
."makeuser";	."makeuser";
}	}
unless ($fperror) {	unless ($fperror) {
my $result=&make_passwd_file($uname, $umode,$npass, $passfilename);	my $result=&make_passwd_file($uname,$udom,$umode,$npass, $passfilename);
&Reply($client,\$result, $userinput); #BUGBUG - could be fail	&Reply($client,\$result, $userinput); #BUGBUG - could be fail
} else {	} else {
&Failure($client, \$fperror, $userinput);	&Failure($client, \$fperror, $userinput);
Line 1974 sub change_authentication_handler {	Line 2156 sub change_authentication_handler {
my $passfilename = &password_path($udom, $uname);	my $passfilename = &password_path($udom, $uname);
if ($passfilename) { # Not allowed to create a new user!!	if ($passfilename) { # Not allowed to create a new user!!
# If just changing the unix passwd. need to arrange to run	# If just changing the unix passwd. need to arrange to run
# passwd since otherwise make_passwd_file will run	# passwd since otherwise make_passwd_file will fail as
# lcuseradd which fails if an account already exists	# creation of unix authenticated users is no longer supported
# (to prevent an unscrupulous LONCAPA admin from stealing	# except from the command line, when running make_domain_coordinator.pl
# an existing account by overwriting it as a LonCAPA account).

if(($oldauth =~/^unix/) && ($umode eq "unix")) {	if(($oldauth =~/^unix/) && ($umode eq "unix")) {
my $result = &change_unix_password($uname, $npass);	my $result = &change_unix_password($uname, $npass);
Line 1988 sub change_authentication_handler {	Line 2169 sub change_authentication_handler {
&Failure($client, \$result);	&Failure($client, \$result);
}	}
} else {	} else {
my $result=&make_passwd_file($uname, $umode,$npass,$passfilename);	my $result=&make_passwd_file($uname,$udom,$umode,$npass,$passfilename);
#	#
# If the current auth mode is internal, and the old auth mode was	# If the current auth mode is internal, and the old auth mode was
# unix, or krb*, and the user is an author for this domain,	# unix, or krb*, and the user is an author for this domain,
# re-run manage_permissions for that role in order to be able	# re-run manage_permissions for that role in order to be able
# to take ownership of the construction space back to www:www	# 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, $userinput);	&Reply($client, \$result, $userinput);
}	}

Line 2050 sub is_home_handler {	Line 2224 sub is_home_handler {
&register_handler("home", \&is_home_handler, 0,1,0);	&register_handler("home", \&is_home_handler, 0,1,0);

#	#
# Process an update request for a resource?? I think what's going on here is	# Process an update request for a resource.
# that a resource has been modified that we hold a subscription to.	# A resource has been modified that we hold a subscription to.
# If the resource is not local, then we must update, or at least invalidate our	# If the resource is not local, then we must update, or at least invalidate our
# cached copy of the resource.	# cached copy of the resource.
# FUTURE WORK:
# I need to look at this logic carefully. My druthers would be to follow
# typical caching logic, and simple invalidate the cache, drop any subscription
# an let the next fetch start the ball rolling again... however that may
# actually be more difficult than it looks given the complex web of
# proxy servers.
# Parameters:	# Parameters:
# $cmd - The command that got us here.	# $cmd - The command that got us here.
# $tail - Tail of the command (remaining parameters).	# $tail - Tail of the command (remaining parameters).
Line 2083 sub update_resource_handler {	Line 2251 sub update_resource_handler {
my $ownership=ishome($fname);	my $ownership=ishome($fname);
if ($ownership eq 'not_owner') {	if ($ownership eq 'not_owner') {
if (-e $fname) {	if (-e $fname) {
	# Delete preview file, if exists
	unlink("$fname.tmp");
	# Get usage stats
my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,	my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
$atime,$mtime,$ctime,$blksize,$blocks)=stat($fname);	$atime,$mtime,$ctime,$blksize,$blocks)=stat($fname);
my $now=time;	my $now=time;
my $since=$now-$atime;	my $since=$now-$atime;
	# If the file has not been used within lonExpire seconds,
	# unsubscribe from it and delete local copy
if ($since>$perlvar{'lonExpire'}) {	if ($since>$perlvar{'lonExpire'}) {
my $reply=&Apache::lonnet::reply("unsub:$fname","$clientname");	my $reply=&Apache::lonnet::reply("unsub:$fname","$clientname");
&devalidate_meta_cache($fname);	&devalidate_meta_cache($fname);
unlink("$fname");	unlink("$fname");
unlink("$fname.meta");	unlink("$fname.meta");
} else {	} else {
	# Yes, this is in active use. Get a fresh copy. Since it might be in
	# very active use and huge (like a movie), copy it to "in.transfer" filename first.
my $transname="$fname.in.transfer";	my $transname="$fname.in.transfer";
my $remoteurl=&Apache::lonnet::reply("sub:$fname","$clientname");	my $remoteurl=&Apache::lonnet::reply("sub:$fname","$clientname");
my $response;	my $response;
alarm(120);	# FIXME: cannot replicate files that take more than two minutes to transfer?
	# alarm(120);
	# FIXME: this should use the LWP mechanism, not internal alarms.
	alarm(1200);
{	{
my $ua=new LWP::UserAgent;	my $ua=new LWP::UserAgent;
my $request=new HTTP::Request('GET',"$remoteurl");	my $request=new HTTP::Request('GET',"$remoteurl");
Line 2104 sub update_resource_handler {	Line 2282 sub update_resource_handler {
}	}
alarm(0);	alarm(0);
if ($response->is_error()) {	if ($response->is_error()) {
	# FIXME: we should probably clean up here instead of just whine
unlink($transname);	unlink($transname);
my $message=$response->status_line;	my $message=$response->status_line;
&logthis("LWP GET: $message for $fname ($remoteurl)");	&logthis("LWP GET: $message for $fname ($remoteurl)");
} else {	} else {
if ($remoteurl!~/\.meta$/) {	if ($remoteurl!~/\.meta$/) {
	# FIXME: isn't there an internal LWP mechanism for this?
alarm(120);	alarm(120);
{	{
my $ua=new LWP::UserAgent;	my $ua=new LWP::UserAgent;
Line 2120 sub update_resource_handler {	Line 2300 sub update_resource_handler {
}	}
alarm(0);	alarm(0);
}	}
	# we successfully transfered, copy file over to real name
rename($transname,$fname);	rename($transname,$fname);
&devalidate_meta_cache($fname);	&devalidate_meta_cache($fname);
}	}
Line 2181 sub fetch_user_file_handler {	Line 2362 sub fetch_user_file_handler {

my $destname=$udir.'/'.$ufile;	my $destname=$udir.'/'.$ufile;
my $transname=$udir.'/'.$ufile.'.in.transit';	my $transname=$udir.'/'.$ufile.'.in.transit';
my $remoteurl='http://'.$clientip.'/userfiles/'.$fname;	my $clientprotocol=$Apache::lonnet::protocol{$clientname};
	$clientprotocol = 'http' if ($clientprotocol ne 'https');
	my $clienthost = &Apache::lonnet::hostname($clientname);
	my $remoteurl=$clientprotocol.'://'.$clienthost.'/userfiles/'.$fname;
my $response;	my $response;
Debug("Remote URL : $remoteurl Transfername $transname Destname: $destname");	Debug("Remote URL : $remoteurl Transfername $transname Destname: $destname");
alarm(120);	alarm(120);
Line 2203 sub fetch_user_file_handler {	Line 2387 sub fetch_user_file_handler {
unlink($transname);	unlink($transname);
&Failure($client, "failed\n", $userinput);	&Failure($client, "failed\n", $userinput);
} else {	} else {
	if ($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", $userinput);	&Reply($client, "ok\n", $userinput);
}	}
}	}
Line 2357 sub user_has_session_handler {	Line 2559 sub user_has_session_handler {

my ($udom, $uname) = map { &unescape($_) } (split(/:/, $tail));	my ($udom, $uname) = map { &unescape($_) } (split(/:/, $tail));

&logthis("Looking for $udom $uname");
opendir(DIR,$perlvar{'lonIDsDir'});	opendir(DIR,$perlvar{'lonIDsDir'});
my $filename;	my $filename;
while ($filename=readdir(DIR)) {	while ($filename=readdir(DIR)) {
Line 3010 sub get_profile_keys {	Line 3211 sub get_profile_keys {
sub dump_profile_database {	sub dump_profile_database {
my ($cmd, $tail, $client) = @_;	my ($cmd, $tail, $client) = @_;

	my $res = LONCAPA::Lond::dump_profile_database($tail);

	if ($res =~ /^error:/) {
	Failure($client, \$res, "$cmd:$tail");
	} else {
	Reply($client, \$res, "$cmd:$tail");
	}

	return 1;

	#TODO remove
my $userinput = "$cmd:$tail";	my $userinput = "$cmd:$tail";

my ($udom,$uname,$namespace) = split(/:/,$tail);	my ($udom,$uname,$namespace) = split(/:/,$tail);
Line 3076 sub dump_profile_database {	Line 3288 sub dump_profile_database {
# that is matched against	# that is matched against
# database keywords to do	# database keywords to do
# selective dumps.	# selective dumps.
	# range - optional range of entries
	# e.g., 10-20 would return the
	# 10th to 19th items, etc.
# $client - Channel open on the client.	# $client - Channel open on the client.
# Returns:	# Returns:
# 1 - Continue processing.	# 1 - Continue processing.
Line 3085 sub dump_profile_database {	Line 3300 sub dump_profile_database {
sub dump_with_regexp {	sub dump_with_regexp {
my ($cmd, $tail, $client) = @_;	my ($cmd, $tail, $client) = @_;

	my $res = LONCAPA::Lond::dump_with_regexp($tail, $clientversion);
my $userinput = "$cmd:$tail";
	if ($res =~ /^error:/) {
my ($udom,$uname,$namespace,$regexp,$range)=split(/:/,$tail);	Failure($client, \$res, "$cmd:$tail");
if (defined($regexp)) {
$regexp=&unescape($regexp);
} else {
$regexp='.';
}
my ($start,$end);
if (defined($range)) {
if ($range =~/^(\d+)\-(\d+)$/) {
($start,$end) = ($1,$2);
} elsif ($range =~/^(\d+)$/) {
($start,$end) = (0,$1);
} else {
undef($range);
}
}
my $hashref = &tie_user_hash($udom, $uname, $namespace,
&GDBM_READER());
if ($hashref) {
my $qresult='';
my $count=0;
while (my ($key,$value) = each(%$hashref)) {
if ($regexp eq '.') {
$count++;
if (defined($range) && $count >= $end) { last; }
if (defined($range) && $count < $start) { next; }
$qresult.=$key.'='.$value.'&';
} else {
my $unescapeKey = &unescape($key);
if (eval('$unescapeKey=~/$regexp/')) {
$count++;
if (defined($range) && $count >= $end) { last; }
if (defined($range) && $count < $start) { next; }
$qresult.="$key=$value&";
}
}
}
if (&untie_user_hash($hashref)) {
chop($qresult);
&Reply($client, \$qresult, $userinput);
} else {
&Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ".
"while attempting dump\n", $userinput);
}
} else {	} else {
&Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".	Reply($client, \$res, "$cmd:$tail");
"while attempting dump\n", $userinput);
}	}

return 1;	return 1;
Line 3693 sub put_course_id_hash_handler {	Line 3864 sub put_course_id_hash_handler {
# caller - if set to 'coursecatalog', courses set to be hidden	# caller - if set to 'coursecatalog', courses set to be hidden
# from course catalog will be excluded from results (unless	# from course catalog will be excluded from results (unless
# overridden by "showhidden".	# overridden by "showhidden".
# cloner - escaped username:domain of course cloner (if picking course to#	# cloner - escaped username:domain of course cloner (if picking course to
# clone).	# clone).
# cc_clone_list - escaped comma separated list of courses for which	# cc_clone_list - escaped comma separated list of courses for which
# course cloner has active CC role (and so can clone	# course cloner has active CC role (and so can clone
# automatically).	# automatically).
# cloneonly - filter by courses for which cloner has rights to clone.	# cloneonly - filter by courses for which cloner has rights to clone.
	# createdbefore - include courses for which creation date preceeded this date.
	# createdafter - include courses for which creation date followed this date.
	# 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.
#	#
# $client - The socket open on the client.	# $client - The socket open on the client.
# Returns:	# Returns:
Line 3707 sub put_course_id_hash_handler {	Line 3886 sub put_course_id_hash_handler {
# a reply is written to $client.	# a reply is written to $client.
sub dump_course_id_handler {	sub dump_course_id_handler {
my ($cmd, $tail, $client) = @_;	my ($cmd, $tail, $client) = @_;

	my $res = LONCAPA::Lond::dump_course_id_handler($tail);
	if ($res =~ /^error:/) {
	Failure($client, \$res, "$cmd:$tail");
	} else {
	Reply($client, \$res, "$cmd:$tail");
	}

	return 1;

	#TODO remove
my $userinput = "$cmd:$tail";	my $userinput = "$cmd:$tail";

my ($udom,$since,$description,$instcodefilter,$ownerfilter,$coursefilter,	my ($udom,$since,$description,$instcodefilter,$ownerfilter,$coursefilter,
$typefilter,$regexp_ok,$rtn_as_hash,$selfenrollonly,$catfilter,$showhidden,	$typefilter,$regexp_ok,$rtn_as_hash,$selfenrollonly,$catfilter,$showhidden,
$caller,$cloner,$cc_clone_list,$cloneonly) =split(/:/,$tail);	$caller,$cloner,$cc_clone_list,$cloneonly,$createdbefore,$createdafter,
	$creationcontext,$domcloner,$hasuniquecode) =split(/:/,$tail);
my $now = time;	my $now = time;
my ($cloneruname,$clonerudom,%cc_clone);	my ($cloneruname,$clonerudom,%cc_clone);
if (defined($description)) {	if (defined($description)) {
Line 3769 sub dump_course_id_handler {	Line 3960 sub dump_course_id_handler {
$cc_clone{$clonedom.'_'.$clonenum} = 1;	$cc_clone{$clonedom.'_'.$clonenum} = 1;
}	}
}	}
	if ($createdbefore ne '') {
	$createdbefore = &unescape($createdbefore);
	} else {
	$createdbefore = 0;
	}
	if ($createdafter ne '') {
	$createdafter = &unescape($createdafter);
	} else {
	$createdafter = 0;
	}
	if ($creationcontext ne '') {
	$creationcontext = &unescape($creationcontext);
	} else {
	$creationcontext = '.';
	}
	unless ($hasuniquecode) {
	$hasuniquecode = '.';
	}
my $unpack = 1;	my $unpack = 1;
if ($description eq '.' && $instcodefilter eq '.' && $coursefilter eq '.' &&	if ($description eq '.' && $instcodefilter eq '.' && $ownerfilter eq '.' &&
$typefilter eq '.') {	$typefilter eq '.') {
$unpack = 0;	$unpack = 0;
}	}
Line 3781 sub dump_course_id_handler {	Line 3989 sub dump_course_id_handler {
if ($hashref) {	if ($hashref) {
while (my ($key,$value) = each(%$hashref)) {	while (my ($key,$value) = each(%$hashref)) {
my ($unesc_key,$lasttime_key,$lasttime,$is_hash,%val,	my ($unesc_key,$lasttime_key,$lasttime,$is_hash,%val,
%unesc_val,$selfenroll_end,$selfenroll_types);	%unesc_val,$selfenroll_end,$selfenroll_types,$created,
	$context);
$unesc_key = &unescape($key);	$unesc_key = &unescape($key);
if ($unesc_key =~ /^lasttime:/) {	if ($unesc_key =~ /^lasttime:/) {
next;	next;
Line 3795 sub dump_course_id_handler {	Line 4004 sub dump_course_id_handler {
my ($canclone,$valchange);	my ($canclone,$valchange);
my $items = &Apache::lonnet::thaw_unescape($value);	my $items = &Apache::lonnet::thaw_unescape($value);
if (ref($items) eq 'HASH') {	if (ref($items) eq 'HASH') {
	if ($hashref->{$lasttime_key} eq '') {
	next if ($since > 1);
	}
$is_hash = 1;	$is_hash = 1;
if (defined($clonerudom)) {	if ($domcloner) {
	$canclone = 1;
	} elsif (defined($clonerudom)) {
if ($items->{'cloners'}) {	if ($items->{'cloners'}) {
my @cloneable = split(',',$items->{'cloners'});	my @cloneable = split(',',$items->{'cloners'});
if (@cloneable) {	if (@cloneable) {
Line 3824 sub dump_course_id_handler {	Line 4038 sub dump_course_id_handler {
$items->{'cloners'} = $cloneruname.':'.$clonerudom;	$items->{'cloners'} = $cloneruname.':'.$clonerudom;
$valchange = 1;	$valchange = 1;
}	}
	unless ($canclone) {
	if ($items->{'owner'} =~ /:/) {
	if ($items->{'owner'} eq $cloner) {
	$canclone = 1;
	}
	} elsif ($cloner eq $items->{'owner'}.':'.$udom) {
	$canclone = 1;
	}
	if ($canclone) {
	$items->{'cloners'} = $cloneruname.':'.$clonerudom;
	$valchange = 1;
	}
	}
}	}
}	}
if ($unpack \|\| !$rtn_as_hash) {	if ($unpack \|\| !$rtn_as_hash) {
Line 3832 sub dump_course_id_handler {	Line 4059 sub dump_course_id_handler {
$unesc_val{'owner'} = $items->{'owner'};	$unesc_val{'owner'} = $items->{'owner'};
$unesc_val{'type'} = $items->{'type'};	$unesc_val{'type'} = $items->{'type'};
$unesc_val{'cloners'} = $items->{'cloners'};	$unesc_val{'cloners'} = $items->{'cloners'};
	$unesc_val{'created'} = $items->{'created'};
	$unesc_val{'context'} = $items->{'context'};
}	}
$selfenroll_types = $items->{'selfenroll_types'};	$selfenroll_types = $items->{'selfenroll_types'};
$selfenroll_end = $items->{'selfenroll_end_date'};	$selfenroll_end = $items->{'selfenroll_end_date'};
	$created = $items->{'created'};
	$context = $items->{'context'};
	if ($hasuniquecode ne '.') {
	next unless ($items->{'uniquecode'});
	}
if ($selfenrollonly) {	if ($selfenrollonly) {
next if (!$selfenroll_types);	next if (!$selfenroll_types);
if (($selfenroll_end > 0) && ($selfenroll_end <= $now)) {	if (($selfenroll_end > 0) && ($selfenroll_end <= $now)) {
next;	next;
}	}
}	}
	if ($creationcontext ne '.') {
	next if (($context ne '') && ($context ne $creationcontext));
	}
	if ($createdbefore > 0) {
	next if (($created eq '') \|\| ($created > $createdbefore));
	}
	if ($createdafter > 0) {
	next if (($created eq '') \|\| ($created <= $createdafter));
	}
if ($catfilter ne '') {	if ($catfilter ne '') {
next if ($items->{'categories'} eq '');	next if ($items->{'categories'} eq '');
my @categories = split('&',$items->{'categories'});	my @categories = split('&',$items->{'categories'});
Line 3863 sub dump_course_id_handler {	Line 4106 sub dump_course_id_handler {
} else {	} else {
next if ($catfilter ne '');	next if ($catfilter ne '');
next if ($selfenrollonly);	next if ($selfenrollonly);
	next if ($createdbefore \|\| $createdafter);
	next if ($creationcontext ne '.');
if ((defined($clonerudom)) && (defined($cloneruname))) {	if ((defined($clonerudom)) && (defined($cloneruname))) {
if ($cc_clone{$unesc_key}) {	if ($cc_clone{$unesc_key}) {
$canclone = 1;	$canclone = 1;
Line 4009 sub dump_course_id_handler {	Line 4254 sub dump_course_id_handler {
}	}
&register_handler("courseiddump", \&dump_course_id_handler, 0, 1, 0);	&register_handler("courseiddump", \&dump_course_id_handler, 0, 1, 0);

	sub course_lastaccess_handler {
	my ($cmd, $tail, $client) = @_;
	my $userinput = "$cmd:$tail";
	my ($cdom,$cnum) = split(':',$tail);
	my (%lastaccess,$qresult);
	my $hashref = &tie_domain_hash($cdom, "nohist_courseids", &GDBM_WRCREAT());
	if ($hashref) {
	while (my ($key,$value) = each(%$hashref)) {
	my ($unesc_key,$lasttime);
	$unesc_key = &unescape($key);
	if ($cnum) {
	next unless ($unesc_key =~ /\Q$cdom\E_\Q$cnum\E$/);
	}
	if ($unesc_key =~ /^lasttime:($LONCAPA::match_domain\_$LONCAPA::match_courseid)/) {
	$lastaccess{$1} = $value;
	} else {
	my $items = &Apache::lonnet::thaw_unescape($value);
	if (ref($items) eq 'HASH') {
	unless ($lastaccess{$unesc_key}) {
	$lastaccess{$unesc_key} = '';
	}
	} else {
	my @courseitems = split(':',$value);
	$lastaccess{$unesc_key} = pop(@courseitems);
	}
	}
	}
	foreach my $cid (sort(keys(%lastaccess))) {
	$qresult.=&escape($cid).'='.$lastaccess{$cid}.'&';
	}
	if (&untie_domain_hash($hashref)) {
	if ($qresult) {
	chop($qresult);
	}
	&Reply($client, \$qresult, $userinput);
	} else {
	&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ".
	"while attempting lastacourseaccess\n", $userinput);
	}
	} else {
	&Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".
	"while attempting lastcourseaccess\n", $userinput);
	}
	return 1;
	}
	&register_handler("courselastaccess",\&course_lastaccess_handler, 0, 1, 0);

#	#
# Puts an unencrypted entry in a namespace db file at the domain level	# Puts an unencrypted entry in a namespace db file at the domain level
#	#
Line 4052 sub put_domain_handler {	Line 4344 sub put_domain_handler {
}	}
&register_handler("putdom", \&put_domain_handler, 0, 1, 0);	&register_handler("putdom", \&put_domain_handler, 0, 1, 0);

#
# Puts a piece of new data in a namespace db file at the domain level
# returns error if key already exists
#
# Parameters:
# $cmd - The command that got us here.
# $tail - Tail of the command (remaining parameters).
# $client - File descriptor connected to client.
# Returns
# 0 - Requested to exit, caller should shut down.
# 1 - Continue processing.
# Side effects:
# reply is written to $client.
#
sub newput_domain_handler {
my ($cmd, $tail, $client) = @_;

my $userinput = "$cmd:$tail";

my ($udom,$namespace,$what) =split(/:/,$tail,3);
chomp($what);
my $hashref = &tie_domain_hash($udom, "$namespace", &GDBM_WRCREAT(),
"N", $what);
if(!$hashref) {
&Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ".
"while attempting newputdom\n", $userinput);
return 1;
}

my @pairs=split(/\&/,$what);
foreach my $pair (@pairs) {
my ($key,$value)=split(/=/,$pair);
if (exists($hashref->{$key})) {
&Failure($client, "key_exists: ".$key."\n",$userinput);
return 1;
}
}

foreach my $pair (@pairs) {
my ($key,$value)=split(/=/,$pair);
$hashref->{$key}=$value;
}

if (&untie_domain_hash($hashref)) {
&Reply( $client, "ok\n", $userinput);
} else {
&Failure($client, "error: ".($!+0)." untie(GDBM) failed ".
"while attempting newputdom\n",
$userinput);
}
return 1;
}
&register_handler("newputdom", \&newput_domain_handler, 0, 1, 0);

# Unencrypted get from the namespace database file at the domain level.	# Unencrypted get from the namespace database file at the domain level.
# This function retrieves a keyed item from a specific named database in the	# This function retrieves a keyed item from a specific named database in the
# domain directory.	# domain directory.
Line 4128 sub newput_domain_handler {	Line 4366 sub newput_domain_handler {
sub get_domain_handler {	sub get_domain_handler {
my ($cmd, $tail, $client) = @_;	my ($cmd, $tail, $client) = @_;


my $userinput = "$client:$tail";	my $userinput = "$client:$tail";

my ($udom,$namespace,$what)=split(/:/,$tail,3);	my ($udom,$namespace,$what)=split(/:/,$tail,3);
Line 4156 sub get_domain_handler {	Line 4395 sub get_domain_handler {
&register_handler("getdom", \&get_domain_handler, 0, 1, 0);	&register_handler("getdom", \&get_domain_handler, 0, 1, 0);

#	#
# Deletes a key in a user profile database.
#
# Parameters:
# $cmd - Command keyword (deldom).
# $tail - Command tail. IN this case a colon
# separated list containing:
# the domain to which the database file belongs;
# the namespace (name of the database file);
# & separated list of keys to delete.
# $client - File open on client socket.
# Returns:
# 1 - Continue processing
# 0 - Exit server.
#
#
sub delete_domain_entry {
my ($cmd, $tail, $client) = @_;

my $userinput = "cmd:$tail";

my ($udom,$namespace,$what) = split(/:/,$tail);
chomp($what);
my $hashref = &tie_domain_hash($udom, $namespace, &GDBM_WRCREAT(),
"D",$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 deldom\n", $userinput);
}
} else {
&Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ".
"while attempting deldom\n", $userinput);
}
return 1;
}
&register_handler("deldom", \&delete_domain_entry, 0, 1, 0);

#
# Puts an id to a domains id database.	# Puts an id to a domains id database.
#	#
# Parameters:	# Parameters:
Line 4296 sub get_id_handler {	Line 4491 sub get_id_handler {
}	}
&register_handler("idget", \&get_id_handler, 0, 1, 0);	&register_handler("idget", \&get_id_handler, 0, 1, 0);

sub dump_dom_with_regexp {	# Deletes one or more ids in a domain's id database.
my ($cmd, $tail, $client) = @_;	#
	# 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 $userinput = "$cmd:$tail";
my ($udom,$namespace,$regexp,$range)=split(/:/,$tail);
if (defined($regexp)) {	my ($udom,$what)=split(/:/,$tail);
$regexp=&unescape($regexp);	chomp($what);
} else {	my $hashref = &tie_domain_hash($udom, "ids", &GDBM_WRCREAT(),
$regexp='.';	"D", $what);
}
my ($start,$end);
if (defined($range)) {
if ($range =~/^(\d+)\-(\d+)$/) {
($start,$end) = ($1,$2);
} elsif ($range =~/^(\d+)$/) {
($start,$end) = (0,$1);
} else {
undef($range);
}
}
my $hashref = &tie_domain_hash($udom, $namespace, &GDBM_READER());
if ($hashref) {	if ($hashref) {
my $qresult='';	my @keys=split(/\&/,$what);
my $count=0;	foreach my $key (@keys) {
while (my ($key,$value) = each(%$hashref)) {	delete($hashref->{$key});
if ($regexp eq '.') {
$count++;
if (defined($range) && $count >= $end) { last; }
if (defined($range) && $count < $start) { next; }
$qresult.=$key.'='.$value.'&';
} else {
my $unescapeKey = &unescape($key);
if (eval('$unescapeKey=~/$regexp/')) {
$count++;
if (defined($range) && $count >= $end) { last; }
if (defined($range) && $count < $start) { next; }
$qresult.="$key=$value&";
}
}
}	}
if (&untie_user_hash($hashref)) {	if (&untie_user_hash($hashref)) {
chop($qresult);	&Reply($client, "ok\n", $userinput);
&Reply($client, \$qresult, $userinput);
} else {	} else {
&Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ".	&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ".
"while attempting dump\n", $userinput);	"while attempting iddel\n", $userinput);
}	}
} else {	} else {
&Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".	&Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ".
"while attempting dump\n", $userinput);	"while attempting iddel\n", $userinput);
}	}
return 1;	return 1;
}	}
&register_handler("dumpdom", \&dump_dom_with_regexp, 0, 1, 0);	&register_handler("iddel", \&del_id_handler, 0, 1, 0);

#	#
# Puts broadcast e-mail sent by Domain Coordinator in nohist_dcmail database	# Puts broadcast e-mail sent by Domain Coordinator in nohist_dcmail database
Line 4370 sub dump_dom_with_regexp {	Line 4554 sub dump_dom_with_regexp {
sub put_dcmail_handler {	sub put_dcmail_handler {
my ($cmd,$tail,$client) = @_;	my ($cmd,$tail,$client) = @_;
my $userinput = "$cmd:$tail";	my $userinput = "$cmd:$tail";


my ($udom,$what)=split(/:/,$tail);	my ($udom,$what)=split(/:/,$tail);
chomp($what);	chomp($what);
my $hashref = &tie_domain_hash($udom, "nohist_dcmail", &GDBM_WRCREAT());	my $hashref = &tie_domain_hash($udom, "nohist_dcmail", &GDBM_WRCREAT());
Line 4634 sub tmp_put_handler {	Line 4819 sub tmp_put_handler {
}	}
my ($id,$store);	my ($id,$store);
$tmpsnum++;	$tmpsnum++;
if ($context eq 'resetpw') {	if (($context eq 'resetpw') \|\| ($context eq 'createaccount')) {
$id = &md5_hex(&md5_hex(time.{}.rand().$$));	$id = &md5_hex(&md5_hex(time.{}.rand().$$));
} else {	} else {
$id = $$.'_'.$clientip.'_'.$tmpsnum;	$id = $$.'_'.$clientip.'_'.$tmpsnum;
Line 4870 sub enrollment_enabled_handler {	Line 5055 sub enrollment_enabled_handler {
&register_handler("autorun", \&enrollment_enabled_handler, 0, 1, 0);	&register_handler("autorun", \&enrollment_enabled_handler, 0, 1, 0);

#	#
# Validate an institutional code use for a LON-CAPA course.	# Validate an institutional code used for a LON-CAPA course.
#	#
# Formal Parameters:	# Formal Parameters:
# $cmd - The command request that got us dispatched.	# $cmd - The command request that got us dispatched.
# $tail - The tail of the command. In this case,	# $tail - The tail of the command. In this case,
# this is a colon separated set of words that will be split	# this is a colon separated set of words that will be split
# into:	# into:
# $inst_course_id - The institutional cod3 from the	# $dom - The domain for which the check of
# institutions point of view.	# institutional course code will occur.
# $cdom - The domain from the institutions	#
# point of view.	# $instcode - The institutional code for the course
	# being requested, or validated for rights
	# to request.
	#
	# $owner - The course requestor (who will be the
	# course owner, in the form username:domain
	#
# $client - Socket open on the client.	# $client - Socket open on the client.
# Returns:	# Returns:
# 1 - Indicating processing should continue.	# 1 - Indicating processing should continue.
Line 4888 sub enrollment_enabled_handler {	Line 5079 sub enrollment_enabled_handler {
sub validate_instcode_handler {	sub validate_instcode_handler {
my ($cmd, $tail, $client) = @_;	my ($cmd, $tail, $client) = @_;
my $userinput = "$cmd:$tail";	my $userinput = "$cmd:$tail";
my ($dom,$instcode,$owner,$inststatus,$instseclist) = split(/:/, $tail);	my ($dom,$instcode,$owner) = split(/:/, $tail);
$instcode = &unescape($instcode);	$instcode = &unescape($instcode);
$owner = &unescape($owner);	$owner = &unescape($owner);
$inststatus = &unescape($inststatus);	my ($outcome,$description,$credits) =
$instseclist = &unescape($instseclist);	&localenroll::validate_instcode($dom,$instcode,$owner);
my $outcome=&localenroll::validate_instcode($dom,$instcode,$owner,	my $result = &escape($outcome).'&'.&escape($description).'&'.
$inststatus,$instseclist);	&escape($credits);
&Reply($client, \$outcome, $userinput);	&Reply($client, \$result, $userinput);

return 1;	return 1;
}	}
Line 4947 sub get_sections_handler {	Line 5138 sub get_sections_handler {
sub validate_course_owner_handler {	sub validate_course_owner_handler {
my ($cmd, $tail, $client) = @_;	my ($cmd, $tail, $client) = @_;
my $userinput = "$cmd:$tail";	my $userinput = "$cmd:$tail";
my ($inst_course_id, $owner, $cdom) = split(/:/, $tail);	my ($inst_course_id, $owner, $cdom, $coowners) = split(/:/, $tail);

$owner = &unescape($owner);	$owner = &unescape($owner);
my $outcome = &localenroll::new_course($inst_course_id,$owner,$cdom);	$coowners = &unescape($coowners);
	my $outcome = &localenroll::new_course($inst_course_id,$owner,$cdom,$coowners);
&Reply($client, \$outcome, $userinput);	&Reply($client, \$outcome, $userinput);


Line 5104 sub retrieve_auto_file_handler {	Line 5296 sub retrieve_auto_file_handler {
}	}
&register_handler("autoretrieve", \&retrieve_auto_file_handler, 0,1,0);	&register_handler("autoretrieve", \&retrieve_auto_file_handler, 0,1,0);

	sub crsreq_checks_handler {
	my ($cmd, $tail, $client) = @_;
	my $userinput = "$cmd:$tail";
	my $dom = $tail;
	my $result;
	my @reqtypes = ('official','unofficial','community','textbook');
	eval {
	local($SIG{__DIE__})='DEFAULT';
	my %validations;
	my $response = &localenroll::crsreq_checks($dom,\@reqtypes,
	\%validations);
	if ($response eq 'ok') {
	foreach my $key (keys(%validations)) {
	$result .= &escape($key).'='.&Apache::lonnet::freeze_escape($validations{$key}).'&';
	}
	$result =~ s/\&$//;
	} else {
	$result = 'error';
	}
	};
	if (!$@) {
	&Reply($client, \$result, $userinput);
	} else {
	&Failure($client,"unknown_cmd\n",$userinput);
	}
	return 1;
	}
	&register_handler("autocrsreqchecks", \&crsreq_checks_handler, 0, 1, 0);

	sub validate_crsreq_handler {
	my ($cmd, $tail, $client) = @_;
	my $userinput = "$cmd:$tail";
	my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist,$customdata) = 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);
	};
	if (!$@) {
	&Reply($client, \$outcome, $userinput);
	} else {
	&Failure($client,"unknown_cmd\n",$userinput);
	}
	return 1;
	}
	&register_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;
	}
	&register_handler("autocrsrequpdate", \&crsreq_update_handler, 0, 1, 0);

#	#
# Read and retrieve institutional code format (for support form).	# Read and retrieve institutional code format (for support form).
# Formal Parameters:	# Formal Parameters:
Line 5811 sub lcpasswdstrerror {	Line 6106 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	# grabs exception and records it to log before exiting
sub catchexception {	sub catchexception {
my ($error)=@_;	my ($error)=@_;
Line 5883 if (-e $pidfile) {	Line 6166 if (-e $pidfile) {
$server = IO::Socket::INET->new(LocalPort => $perlvar{'londPort'},	$server = IO::Socket::INET->new(LocalPort => $perlvar{'londPort'},
Type => SOCK_STREAM,	Type => SOCK_STREAM,
Proto => 'tcp',	Proto => 'tcp',
Reuse => 1,	ReuseAddr => 1,
Listen => 10 )	Listen => 10 )
or die "making socket: $@\n";	or die "making socket: $@\n";

Line 5946 sub HUPSMAN { # sig	Line 6229 sub HUPSMAN { # sig
# a setuid perl script that can be root for us to do this job.	# a setuid perl script that can be root for us to do this job.
#	#
sub ReloadApache {	sub ReloadApache {
my $execdir = $perlvar{'lonDaemons'};	# --------------------------- Handle case of another apachereload process (locking)
my $script = $execdir."/apachereload";	if (&LONCAPA::try_to_lock('/tmp/lock_apachereload')) {
system($script);	my $execdir = $perlvar{'lonDaemons'};
	my $script = $execdir."/apachereload";
	system($script);
	unlink('/tmp/lock_apachereload'); # Remove the lock file.
	}
}	}

#	#
Line 6059 sub Debug {	Line 6346 sub Debug {
# reply - Text to send to client.	# reply - Text to send to client.
# request - Original request from client.	# request - Original request from client.
#	#
	#NOTE $reply must be terminated by exactly one \n. If $reply is a reference
	#this is done automatically ($$reply must not contain any \n in this case).
	#If $reply is a string the caller has to ensure this.
sub Reply {	sub Reply {
my ($fd, $reply, $request) = @_;	my ($fd, $reply, $request) = @_;
if (ref($reply)) {	if (ref($reply)) {
Line 6121 sub logstatus {	Line 6411 sub logstatus {
sub initnewstatus {	sub initnewstatus {
my $docdir=$perlvar{'lonDocRoot'};	my $docdir=$perlvar{'lonDocRoot'};
my $fh=IO::File->new(">$docdir/lon-status/londstatus.txt");	my $fh=IO::File->new(">$docdir/lon-status/londstatus.txt");
my $now=time;	my $now=time();
my $local=localtime($now);	my $local=localtime($now);
print $fh "LOND status $local - parent $$\n\n";	print $fh "LOND status $local - parent $$\n\n";
opendir(DIR,"$docdir/lon-status/londchld");	opendir(DIR,"$docdir/lon-status/londchld");
Line 6210 $SIG{USR2} = \&UpdateHosts;	Line 6500 $SIG{USR2} = \&UpdateHosts;

# Read the host hashes:	# Read the host hashes:
&Apache::lonnet::load_hosts_tab();	&Apache::lonnet::load_hosts_tab();
	my %iphost = &Apache::lonnet::get_iphost(1);

	$dist=`$perlvar{'lonDaemons'}/distprobe`;

my $dist=`$perlvar{'lonDaemons'}/distprobe`;	my $arch = `uname -i`;
	chomp($arch);
	if ($arch eq 'unknown') {
	$arch = `uname -m`;
	chomp($arch);
	}

# --------------------------------------------------------------	# --------------------------------------------------------------
# Accept connections. When a connection comes in, it is validated	# Accept connections. When a connection comes in, it is validated
Line 6270 sub make_new_child {	Line 6568 sub make_new_child {
or die "Can't unblock SIGINT for fork: $!\n";	or die "Can't unblock SIGINT for fork: $!\n";
$children{$pid} = $clientip;	$children{$pid} = $clientip;
&status('Started child '.$pid);	&status('Started child '.$pid);
	close($client);
return;	return;
} else {	} else {
# Child can not return from this subroutine.	# Child can not return from this subroutine.
Line 6278 sub make_new_child {	Line 6577 sub make_new_child {
#don't get intercepted	#don't get intercepted
$SIG{USR1}= \&logstatus;	$SIG{USR1}= \&logstatus;
$SIG{ALRM}= \&timeout;	$SIG{ALRM}= \&timeout;
	#
	# Block sigpipe as it gets thrownon socket disconnect and we want to
	# deal with that as a read faiure instead.
	#
	my $blockset = POSIX::SigSet->new(SIGPIPE);
	sigprocmask(SIG_BLOCK, $blockset);

$lastlog='Forked ';	$lastlog='Forked ';
$status='Forked';	$status='Forked';

Line 6288 sub make_new_child {	Line 6594 sub make_new_child {
# my $tmpsnum=0; # Now global	# my $tmpsnum=0; # Now global
#---------------------------------------------------- kerberos 5 initialization	#---------------------------------------------------- kerberos 5 initialization
&Authen::Krb5::init_context();	&Authen::Krb5::init_context();
unless (($dist eq 'fedora5') \|\| ($dist eq 'fedora4') \|\|
($dist eq 'fedora6') \|\| ($dist eq 'suse9.3')) {	my $no_ets;
	if ($dist =~ /^(?:centos\|rhes)(\d+)$/) {
	if ($1 >= 7) {
	$no_ets = 1;
	}
	} elsif ($dist =~ /^suse(\d+\.\d+)$/) {
	if (($1 eq '9.3') \|\| ($1 >= 12.2)) {
	$no_ets = 1;
	}
	} elsif ($dist =~ /^fedora(\d+)$/) {
	if ($1 < 7) {
	$no_ets = 1;
	}
	}
	unless ($no_ets) {
&Authen::Krb5::init_ets();	&Authen::Krb5::init_ets();
}	}

Line 6306 sub make_new_child {	Line 6626 sub make_new_child {
&ReadManagerTable();	&ReadManagerTable();
my $clientrec=defined(&Apache::lonnet::get_hosts_from_ip($outsideip));	my $clientrec=defined(&Apache::lonnet::get_hosts_from_ip($outsideip));
my $ismanager=($managers{$outsideip} ne undef);	my $ismanager=($managers{$outsideip} ne undef);
$clientname = "[unknonwn]";	$clientname = "[unknown]";
if($clientrec) { # Establish client type.	if($clientrec) { # Establish client type.
$ConnectionType = "client";	$ConnectionType = "client";
$clientname = (&Apache::lonnet::get_hosts_from_ip($outsideip))[-1];	$clientname = (&Apache::lonnet::get_hosts_from_ip($outsideip))[-1];
Line 6334 sub make_new_child {	Line 6654 sub make_new_child {
#	#
# If the remote is attempting a local init... give that a try:	# If the remote is attempting a local init... give that a try:
#	#
my ($i, $inittype) = split(/:/, $remotereq);	logthis("remotereq: $remotereq");
	(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};

# If the connection type is ssl, but I didn't get my	# If the connection type is ssl, but I didn't get my
# certificate files yet, then I'll drop back to	# certificate files yet, then I'll drop back to
Line 6354 sub make_new_child {	Line 6681 sub make_new_child {
}	}

if($inittype eq "local") {	if($inittype eq "local") {
	$clientversion = $perlvar{'lonVersion'};
my $key = LocalConnection($client, $remotereq);	my $key = LocalConnection($client, $remotereq);
if($key) {	if($key) {
Debug("Got local key $key");	Debug("Got local key $key");
Line 6361 sub make_new_child {	Line 6689 sub make_new_child {
my $cipherkey = pack("H32", $key);	my $cipherkey = pack("H32", $key);
$cipher = new IDEA($cipherkey);	$cipher = new IDEA($cipherkey);
print $client "ok:local\n";	print $client "ok:local\n";
&logthis('<font color="green"'	&logthis('<font color="green">'
. "Successful local authentication </font>");	. "Successful local authentication </font>");
$keymode = "local"	$keymode = "local"
} else {	} else {
Line 6425 sub make_new_child {	Line 6753 sub make_new_child {
# ------------------------------------------------------------ Process requests	# ------------------------------------------------------------ Process requests
my $keep_going = 1;	my $keep_going = 1;
my $user_input;	my $user_input;
	my $clienthost = &Apache::lonnet::hostname($clientname);
	my $clientserverhomeID = &Apache::lonnet::get_server_homeID($clienthost);
	$clienthomedom = &Apache::lonnet::host_domain($clientserverhomeID);
while(($user_input = get_request) && $keep_going) {	while(($user_input = get_request) && $keep_going) {
alarm(120);	alarm(120);
Debug("Main: Got $user_input\n");	Debug("Main: Got $user_input\n");
Line 6474 sub is_author {	Line 6805 sub is_author {

# Author role should show up as a key /domain/_au	# Author role should show up as a key /domain/_au

my $key = "/$domain/_au";
my $value;	my $value;
if (defined($hashref)) {	if ($hashref) {
$value = $hashref->{$key};
}

if(defined($value)) {	my $key = "/$domain/_au";
&Debug("$user @ $domain is an author");	if (defined($hashref)) {
	$value = $hashref->{$key};
	if(!untie_user_hash($hashref)) {
	return 'error: ' . ($!+0)." untie (GDBM) Failed";
	}
	}

	if(defined($value)) {
	&Debug("$user @ $domain is an author");
	}
	} else {
	return 'error: '.($!+0)." tie (GDBM) Failed";
}	}

return defined($value);	return defined($value);
}	}
#	#
# Checks to see if the input roleput request was to set	# Checks to see if the input roleput request was to set
# an author role. If so, invokes the lchtmldir script to set	# an author role. If so, creates construction space
# up a correct public_html
# Parameters:	# Parameters:
# request - The request sent to the rolesput subchunk.	# request - The request sent to the rolesput subchunk.
# We're looking for /domain/_au	# We're looking for /domain/_au
Line 6499 sub is_author {	Line 6837 sub is_author {
#	#
sub manage_permissions {	sub manage_permissions {
my ($request, $domain, $user, $authtype) = @_;	my ($request, $domain, $user, $authtype) = @_;

&Debug("manage_permissions: $request $domain $user $authtype");

# See if the request is of the form /$domain/_au	# See if the request is of the form /$domain/_au
if($request =~ /^(\/\Q$domain\E\/_au)$/) { # It's an author rolesput...	if($request =~ /^(\/\Q$domain\E\/_au)$/) { # It's an author rolesput...
my $execdir = $perlvar{'lonDaemons'};	my $path=$perlvar{'lonDocRoot'}."/priv/$domain";
my $userhome= "/home/$user" ;	unless (-e $path) {
&logthis("system $execdir/lchtmldir $userhome $user $authtype");	mkdir($path);
&Debug("Setting homedir permissions for $userhome");	}
system("$execdir/lchtmldir $userhome $user $authtype");	unless (-e $path.'/'.$user) {
	mkdir($path.'/'.$user);
	}
}	}
}	}

Line 6583 sub rewrite_password_file {	Line 6920 sub rewrite_password_file {

# Returns the authorization type or nouser if there is no such user.	# Returns the authorization type or nouser if there is no such user.
#	#
sub get_auth_type	sub get_auth_type {
{

my ($domain, $user) = @_;	my ($domain, $user) = @_;

Debug("get_auth_type( $domain, $user ) \n");	Debug("get_auth_type( $domain, $user ) \n");
Line 6680 sub validate_user {	Line 7015 sub validate_user {
} else {	} else {
$validated = 0;	$validated = 0;
}	}
}	} elsif ($howpwd eq "krb4") { # user is in kerberos 4 auth. domain.
elsif ($howpwd eq "krb4") { # user is in kerberos 4 auth. domain.	my $checkwithkrb5 = 0;
if(! ($password =~ /$null/) ) {	if ($dist =~/^fedora(\d+)$/) {
my $k4error = &Authen::Krb4::get_pw_in_tkt($user,	if ($1 > 11) {
"",	$checkwithkrb5 = 1;
$contentpwd,,	}
'krbtgt',	} elsif ($dist =~ /^suse([\d.]+)$/) {
$contentpwd,	if ($1 > 11.1) {
1,	$checkwithkrb5 = 1;
$password);	}
if(!$k4error) {	}
$validated = 1;	if ($checkwithkrb5) {
} else {	$validated = &krb5_authen($password,$null,$user,$contentpwd);
$validated = 0;	} else {
&logthis('krb4: '.$user.', '.$contentpwd.', '.	$validated = &krb4_authen($password,$null,$user,$contentpwd);
&Authen::Krb4::get_err_txt($Authen::Krb4::error));	}
}
} else {
$validated = 0; # Password has a match with null.
}
} elsif ($howpwd eq "krb5") { # User is in kerberos 5 auth. domain.	} elsif ($howpwd eq "krb5") { # User is in kerberos 5 auth. domain.
if(!($password =~ /$null/)) { # Null password not allowed.	$validated = &krb5_authen($password,$null,$user,$contentpwd);
my $krbclient = &Authen::Krb5::parse_name($user.'@'
.$contentpwd);
my $krbservice = "krbtgt/".$contentpwd."\@".$contentpwd;
my $krbserver = &Authen::Krb5::parse_name($krbservice);
my $credentials= &Authen::Krb5::cc_default();
$credentials->initialize(&Authen::Krb5::parse_name($user.'@'
.$contentpwd));
my $krbreturn;
if (exists(&Authen::Krb5::get_init_creds_password)) {
$krbreturn =
&Authen::Krb5::get_init_creds_password($krbclient,$password,
$krbservice);
$validated = (ref($krbreturn) eq 'Authen::Krb5::Creds');
} else {
$krbreturn =
&Authen::Krb5::get_in_tkt_with_password($krbclient,$krbserver,
$password,$credentials);
$validated = ($krbreturn == 1);
}
if (!$validated) {
&logthis('krb5: '.$user.', '.$contentpwd.', '.
&Authen::Krb5::error());
}
} else {
$validated = 0;
}
} elsif ($howpwd eq "localauth") {	} elsif ($howpwd eq "localauth") {
# Authenticate via installation specific authentcation method:	# Authenticate via installation specific authentcation method:
$validated = &localauth::localauth($user,	$validated = &localauth::localauth($user,
Line 6758 sub validate_user {	Line 7063 sub validate_user {
return $validated;	return $validated;
}	}

	sub krb4_authen {
	my ($password,$null,$user,$contentpwd) = @_;
	my $validated = 0;
	if (!($password =~ /$null/) ) { # Null password not allowed.
	eval {
	require Authen::Krb4;
	};
	if (!$@) {
	my $k4error = &Authen::Krb4::get_pw_in_tkt($user,
	"",
	$contentpwd,,
	'krbtgt',
	$contentpwd,
	1,
	$password);
	if(!$k4error) {
	$validated = 1;
	} else {
	$validated = 0;
	&logthis('krb4: '.$user.', '.$contentpwd.', '.
	&Authen::Krb4::get_err_txt($Authen::Krb4::error));
	}
	} else {
	$validated = krb5_authen($password,$null,$user,$contentpwd);
	}
	}
	return $validated;
	}

	sub krb5_authen {
	my ($password,$null,$user,$contentpwd) = @_;
	my $validated = 0;
	if(!($password =~ /$null/)) { # Null password not allowed.
	my $krbclient = &Authen::Krb5::parse_name($user.'@'
	.$contentpwd);
	my $krbservice = "krbtgt/".$contentpwd."\@".$contentpwd;
	my $krbserver = &Authen::Krb5::parse_name($krbservice);
	my $credentials= &Authen::Krb5::cc_default();
	$credentials->initialize(&Authen::Krb5::parse_name($user.'@'
	.$contentpwd));
	my $krbreturn;
	if (exists(&Authen::Krb5::get_init_creds_password)) {
	$krbreturn =
	&Authen::Krb5::get_init_creds_password($krbclient,$password,
	$krbservice);
	$validated = (ref($krbreturn) eq 'Authen::Krb5::Creds');
	} else {
	$krbreturn =
	&Authen::Krb5::get_in_tkt_with_password($krbclient,$krbserver,
	$password,$credentials);
	$validated = ($krbreturn == 1);
	}
	if (!$validated) {
	&logthis('krb5: '.$user.', '.$contentpwd.', '.
	&Authen::Krb5::error());
	}
	}
	return $validated;
	}

sub addline {	sub addline {
my ($fname,$hostid,$ip,$newline)=@_;	my ($fname,$hostid,$ip,$newline)=@_;
Line 6970 sub subscribe {	Line 7334 sub subscribe {
# the metadata	# the metadata
unless ($fname=~/\.meta$/) { &unsub("$fname.meta",$clientip); }	unless ($fname=~/\.meta$/) { &unsub("$fname.meta",$clientip); }
$fname=~s/\/home\/httpd\/html\/res/raw/;	$fname=~s/\/home\/httpd\/html\/res/raw/;
$fname="http://".&Apache::lonnet::hostname($perlvar{'lonHostID'})."/".$fname;	my $protocol = $Apache::lonnet::protocol{$perlvar{'lonHostID'}};
	$protocol = 'http' if ($protocol ne 'https');
	$fname=$protocol.'://'.&Apache::lonnet::hostname($perlvar{'lonHostID'})."/".$fname;
$result="$fname\n";	$result="$fname\n";
}	}
} else {	} else {
Line 7012 sub change_unix_password {	Line 7378 sub change_unix_password {


sub make_passwd_file {	sub make_passwd_file {
my ($uname, $umode,$npass,$passfilename)=@_;	my ($uname,$udom,$umode,$npass,$passfilename)=@_;
my $result="ok";	my $result="ok";
if ($umode eq 'krb4' or $umode eq 'krb5') {	if ($umode eq 'krb4' or $umode eq 'krb5') {
{	{
Line 7046 sub make_passwd_file {	Line 7412 sub make_passwd_file {
}	}
}	}
} elsif ($umode eq 'unix') {	} 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(">>>Attempted to create privilged 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 $se "$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') {	} elsif ($umode eq 'none') {
{	{
my $pf = IO::File->new("> $passfilename");	my $pf = IO::File->new("> $passfilename");
Line 7128 sub sethost {	Line 7447 sub sethost {
eq &Apache::lonnet::get_host_ip($hostid)) {	eq &Apache::lonnet::get_host_ip($hostid)) {
$currenthostid =$hostid;	$currenthostid =$hostid;
$currentdomainid=&Apache::lonnet::host_domain($hostid);	$currentdomainid=&Apache::lonnet::host_domain($hostid);
&logthis("Setting hostid to $hostid, and domain to $currentdomainid");	# &logthis("Setting hostid to $hostid, and domain to $currentdomainid");
} else {	} else {
&logthis("Requested host id $hostid not an alias of ".	&logthis("Requested host id $hostid not an alias of ".
$perlvar{'lonHostID'}." refusing connection");	$perlvar{'lonHostID'}." refusing connection");
Line 7143 sub version {	Line 7462 sub version {
return "version:$VERSION";	return "version:$VERSION";
}	}

	sub get_usersession_config {
	my ($dom,$name) = @_;
	my ($usersessionconf,$cached)=&Apache::lonnet::is_cached_new($name,$dom);
	if (defined($cached)) {
	return $usersessionconf;
	} else {
	my %domconfig = &Apache::lonnet::get_dom('configuration',['usersessions'],$dom);
	if (ref($domconfig{'usersessions'}) eq 'HASH') {
	&Apache::lonnet::do_cache_new($name,$dom,$domconfig{'usersessions'},3600);
	return $domconfig{'usersessions'};
	}
	}
	return;
	}




	sub distro_and_arch {
	return $dist.':'.$arch;
	}

# ----------------------------------- POD (plain old documentation, CPAN style)	# ----------------------------------- POD (plain old documentation, CPAN style)

Line 7351 Place in B<logs/lond.log>	Line 7691 Place in B<logs/lond.log>

stores hash in namespace	stores hash in namespace

=item rolesputy	=item rolesput

put a role into a user's environment	put a role into a user's environment

Line 7468 Authen::Krb5	Line 7808 Authen::Krb5

=head1 COREQUISITES	=head1 COREQUISITES

	none

=head1 OSNAMES	=head1 OSNAMES

linux	linux
Line 7555 or the CA's certificate in the call to l	Line 7897 or the CA's certificate in the call to l
<error> is the textual reason this failed. Usual reasons:	<error> is the textual reason this failed. Usual reasons:

=over 2	=over 2

=item Apache config file for loncapa incorrect:	=item Apache config file for loncapa incorrect:

one of the variables	one of the variables
lonCertificateDirectory, lonnetCertificateAuthority, or lonnetCertificate	lonCertificateDirectory, lonnetCertificateAuthority, or lonnetCertificate
undefined or incorrect	undefined or incorrect
Line 7676 Could not rewrite the	Line 8018 Could not rewrite the
internal password file for a user	internal password file for a user

=item Result of password change for <user> : <result>	=item Result of password change for <user> : <result>

A unix password change for <user> was attempted	A unix password change for <user> was attempted
and the pipe returned <result>	and the pipe returned <result>

Line 7705 lond has been asked to exit by its clien	Line 8047 lond has been asked to exit by its clien
client systemand <input> is the full exit command sent to the server.	client systemand <input> is the full exit command sent to the server.

=item Red CRITICAL: ABNORMAL EXIT. child <pid> for server <hostname> died through a crass with this error->[<message>].	=item Red CRITICAL: ABNORMAL EXIT. child <pid> for server <hostname> died through a crass with this error->[<message>].

A lond child terminated. NOte that this termination can also occur when the	A lond child terminated. NOte that this termination can also occur when the
child receives the QUIT or DIE signals. <pid> is the process id of the child,	child receives the QUIT or DIE signals. <pid> is the process id of the child,
<hostname> the host lond is working for, and <message> the reason the child died	<hostname> the host lond is working for, and <message> the reason the child died
Line 7789 file when sent it's USR1 signal. That p	Line 8131 file when sent it's USR1 signal. That p
assumed to be hung in some un-fixable way.	assumed to be hung in some un-fixable way.

=item Finished checking children	=item Finished checking children

Master processs's USR1 processing is cojmplete.	Master processs's USR1 processing is cojmplete.

=item (Red) CRITICAL: ------- Starting ------	=item (Red) CRITICAL: ------- Starting ------
Line 7803 Started a new child process for <client>	Line 8145 Started a new child process for <client>
connected to the child. This was as a result of a TCP/IP connection from a client.	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	=item Unable to determine who caller was, getpeername returned nothing

In child process initialization. either getpeername returned undef or	In child process initialization. either getpeername returned undef or
a zero sized object was returned. Processing continues, but in my opinion,	a zero sized object was returned. Processing continues, but in my opinion,
this should be cause for the child to exit.	this should be cause for the child to exit.
Line 7814 In child process initialization. The pe	Line 8156 In child process initialization. The pe
The client address is stored as "Unavailable" and processing continues.	The client address is stored as "Unavailable" and processing continues.

=item (Yellow) INFO: Connection <ip> <name> connection type = <type>	=item (Yellow) INFO: Connection <ip> <name> connection type = <type>

In child initialization. A good connectionw as received from <ip>.	In child initialization. A good connectionw as received from <ip>.

=over 2	=over 2
Line 7864 The client (<client> is the peer's name	Line 8206 The client (<client> is the peer's name
negotiated an SSL connection with this child process.	negotiated an SSL connection with this child process.

=item (Green) Successful insecure authentication with <client>	=item (Green) Successful insecure authentication with <client>


The client has successfully negotiated an insecure connection withthe child process.	The client has successfully negotiated an insecure connection withthe child process.

Line 7878 string.	Line 8220 string.

=back	=back

	=back


=cut	=cut

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>

Removed from v.1.422
changed lines
	Added in v.1.511