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Diff for /loncom/lond between versions 1.489.2.17 and 1.533

version 1.489.2.17, 2015/03/12 00:37:30	version 1.533, 2017/03/13 18:30:02
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 36 use LONCAPA;	Line 35 use LONCAPA;
use LONCAPA::Configuration;	use LONCAPA::Configuration;
use LONCAPA::Lond;	use LONCAPA::Lond;

	use Socket;
use IO::Socket;	use IO::Socket;
use IO::File;	use IO::File;
#use Apache::File;	#use Apache::File;
use POSIX;	use POSIX;
use Crypt::IDEA;	use Crypt::IDEA;
use LWP::UserAgent();	use HTTP::Request;
use Digest::MD5 qw(md5_hex);	use Digest::MD5 qw(md5_hex);
use GDBM_File;	use GDBM_File;
use Authen::Krb5;	use Authen::Krb5;
Line 55 use LONCAPA::lonssl;	Line 55 use LONCAPA::lonssl;
use Fcntl qw(:flock);	use Fcntl qw(:flock);
use Apache::lonnet;	use Apache::lonnet;
use Mail::Send;	use Mail::Send;
	use Crypt::Eksblowfish::Bcrypt;
	use Digest::SHA;
	use Encode;
	use LONCAPA::LWPReq;

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

Line 71 my $clientip; # IP address of client.	Line 75 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 $clientversion; # LonCAPA version running on client.
my $clienthomedom; # LonCAPA domain of homeID for client.	my $clienthomedom; # LonCAPA domain of homeID for client.
# primary library server.	my $clientintdom; # LonCAPA "internet domain" for client.
	my $clientsamedom; # LonCAPA domain same for this host
	# and client.
	my $clientsameinst; # LonCAPA "internet domain" same for
	# this host and client.
	my $clientremoteok; # Client allowed to host domain's users.
	# (version constraints ignored), not set
	# if this host and client share "internet domain".
	my %clientprohibited; # Actions prohibited on client;

my $server;	my $server;

my $keymode;	my $keymode;
Line 93 my %managers; # Ip -> manager names	Line 105 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 %secureconf; # Will have requirements for security
	# of lond connections

my $dist;	my $dist;

#	#
Line 142 my @installerrors = ("ok",	Line 157 my @installerrors = ("ok",
);	);

#	#
	# The %trust hash classifies commands according to type of trust
	# required for execution of the command.
	#
	# When clients from a different institution request execution of a
	# particular command, the trust settings for that institution set
	# for this domain (or default domain for a multi-domain server) will
	# be checked to see if running the command is allowed.
	#
	# Trust types which depend on the "Trust" domain configuration
	# for the machine's default domain are:
	#
	# content ("Access to this domain's content by others")
	# shared ("Access to other domain's content by this domain")
	# enroll ("Enrollment in this domain's courses by others")
	# coaurem ("Co-author roles for this domain's users elsewhere")
	# domroles ("Domain roles in this domain assignable to others")
	# catalog ("Course Catalog for this domain displayed elsewhere")
	# reqcrs ("Requests for creation of courses in this domain by others")
	# msg ("Users in other domains can send messages to this domain")
	#
	# Trust type which depends on the User Session Hosting (remote)
	# domain configuration for machine's default domain is: "remote".
	#
	# Trust types which depend on contents of manager.tab in
	# /home/httpd/lonTabs is: "manageronly".
	#
	# Trust type which requires client to share the same LON-CAPA
	# "internet domain" (i.e., same institution as this server) is:
	# "institutiononly".
	#

	my %trust = (
	auth => {remote => 1},
	autocreatepassword => {remote => 1},
	autocrsreqchecks => {remote => 1, reqcrs => 1},
	autocrsrequpdate => {remote => 1},
	autocrsreqvalidation => {remote => 1},
	autogetsections => {remote => 1},
	autoinstcodedefaults => {remote => 1, catalog => 1},
	autoinstcodeformat => {remote => 1, catalog => 1},
	autonewcourse => {remote => 1, reqcrs => 1},
	autophotocheck => {remote => 1, enroll => 1},
	autophotochoice => {remote => 1},
	autophotopermission => {remote => 1, enroll => 1},
	autopossibleinstcodes => {remote => 1, reqcrs => 1},
	autoretrieve => {remote => 1, enroll => 1, catalog => 1},
	autorun => {remote => 1, enroll => 1, reqcrs => 1},
	autovalidateclass_sec => {catalog => 1},
	autovalidatecourse => {remote => 1, enroll => 1},
	autovalidateinstcode => {domroles => 1, remote => 1, enroll => 1},
	changeuserauth => {remote => 1, domroles => 1},
	chatretr => {remote => 1, enroll => 1},
	chatsend => {remote => 1, enroll => 1},
	courseiddump => {remote => 1, domroles => 1, enroll => 1},
	courseidput => {remote => 1, domroles => 1, enroll => 1},
	courseidputhash => {remote => 1, domroles => 1, enroll => 1},
	courselastaccess => {remote => 1, domroles => 1, enroll => 1},
	currentauth => {remote => 1, domroles => 1, enroll => 1},
	currentdump => {remote => 1, enroll => 1},
	currentversion => {remote=> 1, content => 1},
	dcmaildump => {remote => 1, domroles => 1},
	dcmailput => {remote => 1, domroles => 1},
	del => {remote => 1, domroles => 1, enroll => 1, content => 1},
	deldom => {remote => 1, domroles => 1}, # not currently used
	devalidatecache => {institutiononly => 1},
	domroleput => {remote => 1, enroll => 1},
	domrolesdump => {remote => 1, catalog => 1},
	du => {remote => 1, enroll => 1},
	du2 => {remote => 1, enroll => 1},
	dump => {remote => 1, enroll => 1, domroles => 1},
	edit => {institutiononly => 1}, #not used currently
	eget => {remote => 1, domroles => 1, enroll => 1}, #not used currently
	ekey => {}, #not used currently
	exit => {anywhere => 1},
	fetchuserfile => {remote => 1, enroll => 1},
	get => {remote => 1, domroles => 1, enroll => 1},
	getdom => {anywhere => 1},
	home => {anywhere => 1},
	iddel => {remote => 1, enroll => 1},
	idget => {remote => 1, enroll => 1},
	idput => {remote => 1, domroles => 1, enroll => 1},
	inc => {remote => 1, enroll => 1},
	init => {anywhere => 1},
	inst_usertypes => {remote => 1, domroles => 1, enroll => 1},
	instemailrules => {remote => 1, domroles => 1},
	instidrulecheck => {remote => 1, domroles => 1,},
	instidrules => {remote => 1, domroles => 1,},
	instrulecheck => {remote => 1, enroll => 1, reqcrs => 1, domroles => 1},
	instselfcreatecheck => {institutiononly => 1},
	instuserrules => {remote => 1, enroll => 1, reqcrs => 1, domroles => 1},
	keys => {remote => 1,},
	load => {anywhere => 1},
	log => {anywhere => 1},
	ls => {remote => 1, enroll => 1, content => 1,},
	ls2 => {remote => 1, enroll => 1, content => 1,},
	ls3 => {remote => 1, enroll => 1, content => 1,},
	makeuser => {remote => 1, enroll => 1, domroles => 1,},
	mkdiruserfile => {remote => 1, enroll => 1,},
	newput => {remote => 1, enroll => 1, reqcrs => 1, domroles => 1,},
	passwd => {remote => 1},
	ping => {anywhere => 1},
	pong => {anywhere => 1},
	pushfile => {manageronly => 1},
	put => {remote => 1, enroll => 1, domroles => 1, msg => 1, content => 1, shared => 1},
	putdom => {remote => 1, domroles => 1,},
	putstore => {remote => 1, enroll => 1},
	queryreply => {anywhere => 1},
	querysend => {anywhere => 1},
	quit => {anywhere => 1},
	readlonnetglobal => {institutiononly => 1},
	reinit => {manageronly => 1}, #not used currently
	removeuserfile => {remote => 1, enroll => 1},
	renameuserfile => {remote => 1,},
	restore => {remote => 1, enroll => 1, reqcrs => 1,},
	rolesdel => {remote => 1, enroll => 1, domroles => 1, coaurem => 1},
	rolesput => {remote => 1, enroll => 1, domroles => 1, coaurem => 1},
	servercerts => {institutiononly => 1},
	serverdistarch => {anywhere => 1},
	serverhomeID => {anywhere => 1},
	serverloncaparev => {anywhere => 1},
	servertimezone => {remote => 1, enroll => 1},
	setannounce => {remote => 1, domroles => 1},
	sethost => {anywhere => 1},
	store => {remote => 1, enroll => 1, reqcrs => 1,},
	studentphoto => {remote => 1, enroll => 1},
	sub => {content => 1,},
	tmpdel => {anywhere => 1},
	tmpget => {anywhere => 1},
	tmpput => {anywhere => 1},
	tokenauthuserfile => {anywhere => 1},
	unsub => {content => 1,},
	update => {shared => 1},
	updateclickers => {remote => 1},
	userhassession => {anywhere => 1},
	userload => {anywhere => 1},
	version => {anywhere => 1}, #not used
	);

	#
# Statistics that are maintained and dislayed in the status line.	# Statistics that are maintained and dislayed in the status line.
#	#
my $Transactions = 0; # Number of attempted transactions.	my $Transactions = 0; # Number of attempted transactions.
Line 297 sub InsecureConnection {	Line 451 sub InsecureConnection {
my $Socket = shift;	my $Socket = shift;

# Don't even start if insecure connections are not allowed.	# Don't even start if insecure connections are not allowed.
	# return 0 if Insecure connections not allowed.
if(! $perlvar{londAllowInsecure}) { # Insecure connections not allowed.	#
	if (ref($secureconf{'connfrom'}) eq 'HASH') {
	if ($clientsamedom) {
	if ($secureconf{'connfrom'}{'dom'} eq 'req') {
	return 0;
	}
	} elsif ($clientsameinst) {
	if ($secureconf{'connfrom'}{'intdom'} eq 'req') {
	return 0;
	}
	} else {
	if ($secureconf{'connfrom'}{'other'} eq 'req') {
	return 0;
	}
	}
	} elsif (!$perlvar{londAllowInsecure}) {
return 0;	return 0;
}	}

Line 664 sub PushFile {	Line 833 sub PushFile {
$clientprotocol = 'http' if ($clientprotocol ne 'https');	$clientprotocol = 'http' if ($clientprotocol ne 'https');
my $url = '/adm/'.$filename;	my $url = '/adm/'.$filename;
$url =~ s{_}{/};	$url =~ s{_}{/};
my $ua=new LWP::UserAgent;
$ua->timeout(60);
my $request=new HTTP::Request('GET',"$clientprotocol://$clienthost$url");	my $request=new HTTP::Request('GET',"$clientprotocol://$clienthost$url");
my $response=$ua->request($request);	my $response = LONCAPA::LWPReq::makerequest($clientname,$request,'',\%perlvar,60,0);
if ($response->is_error()) {	if ($response->is_error()) {
&logthis('<font color="red"> Pushfile: unable to install '	&logthis('<font color="red"> Pushfile: unable to install '
.$tablefile." - error attempting to pull data. </font>");	.$tablefile." - error attempting to pull data. </font>");
Line 1422 sub du2_handler {	Line 1589 sub du2_handler {
# selected directory the filename followed by the full output of	# selected directory the filename followed by the full output of
# the stat function is returned. The returned info for each	# the stat function is returned. The returned info for each
# file are separated by ':'. The stat fields are separated by &'s.	# file are separated by ':'. The stat fields are separated by &'s.
	#
	# If the requested path contains /../ or is:
	#
	# 1. for a directory, and the path does not begin with one of:
	# (a) /home/httpd/html/res/<domain>
	# (b) /home/httpd/html/res/userfiles/
	# (c) /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/userfiles
	# or is:
	#
	# 2. for a file, and the path (after prepending) does not begin with:
	# /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/
	#
	# the response will be "refused".
	#
# Parameters:	# Parameters:
# $cmd - The command that dispatched us (ls).	# $cmd - The command that dispatched us (ls).
# $ulsdir - The directory path to list... I'm not sure what this	# $ulsdir - The directory path to list... I'm not sure what this
Line 1443 sub ls_handler {	Line 1624 sub ls_handler {
my $rights;	my $rights;
my $ulsout='';	my $ulsout='';
my $ulsfn;	my $ulsfn;
	if ($ulsdir =~m{/\.\./}) {
	&Failure($client,"refused\n",$userinput);
	return 1;
	}
if (-e $ulsdir) {	if (-e $ulsdir) {
if(-d $ulsdir) {	if(-d $ulsdir) {
	unless (($ulsdir =~ m{/home/httpd/html/(res/$LONCAPA::match_domain\|userfiles/)}) \|\|
	($ulsdir =~ m{/home/httpd/lonUsers/$LONCAPA::match_domain(?:/[\w\-.@]){3}/$LONCAPA::match_username/userfiles/})) {
	&Failure($client,"refused\n",$userinput);
	return 1;
	}
if (opendir(LSDIR,$ulsdir)) {	if (opendir(LSDIR,$ulsdir)) {
while ($ulsfn=readdir(LSDIR)) {	while ($ulsfn=readdir(LSDIR)) {
undef($obs);	undef($obs);
Line 1468 sub ls_handler {	Line 1658 sub ls_handler {
closedir(LSDIR);	closedir(LSDIR);
}	}
} else {	} else {
	unless ($ulsdir =~ m{/home/httpd/lonUsers/$LONCAPA::match_domain(?:/[\w\-.@]){3}/$LONCAPA::match_username/}) {
	&Failure($client,"refused\n",$userinput);
	return 1;
	}
my @ulsstats=stat($ulsdir);	my @ulsstats=stat($ulsdir);
$ulsout.=$ulsfn.'&'.join('&',@ulsstats).':';	$ulsout.=$ulsfn.'&'.join('&',@ulsstats).':';
}	}
Line 1492 sub ls_handler {	Line 1686 sub ls_handler {
# selected directory the filename followed by the full output of	# selected directory the filename followed by the full output of
# the stat function is returned. The returned info for each	# the stat function is returned. The returned info for each
# file are separated by ':'. The stat fields are separated by &'s.	# file are separated by ':'. The stat fields are separated by &'s.
	#
	# If the requested path contains /../ or is:
	#
	# 1. for a directory, and the path does not begin with one of:
	# (a) /home/httpd/html/res/<domain>
	# (b) /home/httpd/html/res/userfiles/
	# (c) /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/userfiles
	# or is:
	#
	# 2. for a file, and the path (after prepending) does not begin with:
	# /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/
	#
	# the response will be "refused".
	#
# Parameters:	# Parameters:
# $cmd - The command that dispatched us (ls).	# $cmd - The command that dispatched us (ls).
# $ulsdir - The directory path to list... I'm not sure what this	# $ulsdir - The directory path to list... I'm not sure what this
Line 1512 sub ls2_handler {	Line 1720 sub ls2_handler {
my $rights;	my $rights;
my $ulsout='';	my $ulsout='';
my $ulsfn;	my $ulsfn;
	if ($ulsdir =~m{/\.\./}) {
	&Failure($client,"refused\n",$userinput);
	return 1;
	}
if (-e $ulsdir) {	if (-e $ulsdir) {
if(-d $ulsdir) {	if(-d $ulsdir) {
	unless (($ulsdir =~ m{/home/httpd/html/(res/$LONCAPA::match_domain\|userfiles/)}) \|\|
	($ulsdir =~ m{/home/httpd/lonUsers/$LONCAPA::match_domain(?:/[\w\-.@]){3}/$LONCAPA::match_username/userfiles/})) {
	&Failure($client,"refused\n","$userinput");
	return 1;
	}
if (opendir(LSDIR,$ulsdir)) {	if (opendir(LSDIR,$ulsdir)) {
while ($ulsfn=readdir(LSDIR)) {	while ($ulsfn=readdir(LSDIR)) {
undef($obs);	undef($obs);
Line 1538 sub ls2_handler {	Line 1755 sub ls2_handler {
closedir(LSDIR);	closedir(LSDIR);
}	}
} else {	} else {
	unless ($ulsdir =~ m{/home/httpd/lonUsers/$LONCAPA::match_domain(?:/[\w\-.@]){3}/$LONCAPA::match_username/}) {
	&Failure($client,"refused\n",$userinput);
	return 1;
	}
my @ulsstats=stat($ulsdir);	my @ulsstats=stat($ulsdir);
$ulsout.=$ulsfn.'&'.join('&',@ulsstats).':';	$ulsout.=$ulsfn.'&'.join('&',@ulsstats).':';
}	}
Line 1554 sub ls2_handler {	Line 1775 sub ls2_handler {
# selected directory the filename followed by the full output of	# selected directory the filename followed by the full output of
# the stat function is returned. The returned info for each	# the stat function is returned. The returned info for each
# file are separated by ':'. The stat fields are separated by &'s.	# file are separated by ':'. The stat fields are separated by &'s.
	#
	# If the requested path (after prepending) contains /../ or is:
	#
	# 1. for a directory, and the path does not begin with one of:
	# (a) /home/httpd/html/res/<domain>
	# (b) /home/httpd/html/res/userfiles/
	# (c) /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/userfiles
	# (d) /home/httpd/html/priv/<domain>/ and client is the homeserver
	#
	# or is:
	#
	# 2. for a file, and the path (after prepending) does not begin with:
	# /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/
	#
	# the response will be "refused".
	#
# Parameters:	# Parameters:
# $cmd - The command that dispatched us (ls).	# $cmd - The command that dispatched us (ls).
# $tail - The tail of the request that invoked us.	# $tail - The tail of the request that invoked us.
Line 1593 sub ls3_handler {	Line 1830 sub ls3_handler {
}	}

my $dir_root = $perlvar{'lonDocRoot'};	my $dir_root = $perlvar{'lonDocRoot'};
if ($getpropath) {	if (($getpropath) \|\| ($getuserdir)) {
if (($uname =~ /^$LONCAPA::match_name$/) && ($udom =~ /^$LONCAPA::match_domain$/)) {	if (($uname =~ /^$LONCAPA::match_name$/) && ($udom =~ /^$LONCAPA::match_domain$/)) {
$dir_root = &propath($udom,$uname);	$dir_root = &propath($udom,$uname);
$dir_root =~ s/\/$//;	$dir_root =~ s/\/$//;
} else {	} else {
&Failure($client,"refused\n","$cmd:$tail");	&Failure($client,"refused\n",$userinput);
return 1;
}
} elsif ($getuserdir) {
if (($uname =~ /^$LONCAPA::match_name$/) && ($udom =~ /^$LONCAPA::match_domain$/)) {
my $subdir=$uname.'__';
$subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
$dir_root = $Apache::lonnet::perlvar{'lonUsersDir'}
."/$udom/$subdir/$uname";
} else {
&Failure($client,"refused\n","$cmd:$tail");
return 1;	return 1;
}	}
} elsif ($alternate_root ne '') {	} elsif ($alternate_root ne '') {
Line 1621 sub ls3_handler {	Line 1848 sub ls3_handler {
$ulsdir = $dir_root.'/'.$ulsdir;	$ulsdir = $dir_root.'/'.$ulsdir;
}	}
}	}
	if ($ulsdir =~m{/\.\./}) {
	&Failure($client,"refused\n",$userinput);
	return 1;
	}
	my $islocal;
	my @machine_ids = &Apache::lonnet::current_machine_ids();
	if (grep(/^\Q$clientname\E$/,@machine_ids)) {
	$islocal = 1;
	}
my $obs;	my $obs;
my $rights;	my $rights;
my $ulsout='';	my $ulsout='';
my $ulsfn;	my $ulsfn;
if (-e $ulsdir) {	if (-e $ulsdir) {
if(-d $ulsdir) {	if(-d $ulsdir) {
	unless (($getpropath) \|\| ($getuserdir) \|\|
	($ulsdir =~ m{/home/httpd/html/(res/$LONCAPA::match_domain\|userfiles/)}) \|\|
	($ulsdir =~ m{/home/httpd/lonUsers/$LONCAPA::match_domain(?:/[\w\-.@]){3}/$LONCAPA::match_username/userfiles/}) \|\|
	(($ulsdir =~ m{/home/httpd/html/priv/$LONCAPA::match_domain/}) && ($islocal))) {
	&Failure($client,"refused\n",$userinput);
	return 1;
	}
if (opendir(LSDIR,$ulsdir)) {	if (opendir(LSDIR,$ulsdir)) {
while ($ulsfn=readdir(LSDIR)) {	while ($ulsfn=readdir(LSDIR)) {
undef($obs);	undef($obs);
Line 1651 sub ls3_handler {	Line 1894 sub ls3_handler {
closedir(LSDIR);	closedir(LSDIR);
}	}
} else {	} else {
	unless (($getpropath) \|\| ($getuserdir) \|\|
	($ulsdir =~ m{/home/httpd/lonUsers/$LONCAPA::match_domain(?:/[\w\-.@]){3}/$LONCAPA::match_username/})) {
	&Failure($client,"refused\n",$userinput);
	return 1;
	}
my @ulsstats=stat($ulsdir);	my @ulsstats=stat($ulsdir);
$ulsout.=$ulsfn.'&'.join('&',@ulsstats).':';	$ulsout.=$ulsfn.'&'.join('&',@ulsstats).':';
}	}
Line 1674 sub read_lonnet_global {	Line 1922 sub read_lonnet_global {
);	);
my %limit_to = (	my %limit_to = (
perlvar => {	perlvar => {
lonOtherAuthen => 1,	lonOtherAuthen => 1,
lonBalancer => 1,	lonBalancer => 1,
lonVersion => 1,	lonVersion => 1,
lonSysEMail => 1,	lonAdmEMail => 1,
lonHostID => 1,	lonSupportEMail => 1,
lonRole => 1,	lonSysEMail => 1,
lonDefDomain => 1,	lonHostID => 1,
lonLoadLim => 1,	lonRole => 1,
lonUserLoadLim => 1,	lonDefDomain => 1,
	lonLoadLim => 1,
	lonUserLoadLim => 1,
}	}
);	);
if (ref($requested) eq 'HASH') {	if (ref($requested) eq 'HASH') {
Line 1794 sub server_distarch_handler {	Line 2044 sub server_distarch_handler {
}	}
&register_handler("serverdistarch", \&server_distarch_handler, 0, 1, 0);	&register_handler("serverdistarch", \&server_distarch_handler, 0, 1, 0);

	sub server_certs_handler {
	my ($cmd,$tail,$client) = @_;
	my $userinput = "$cmd:$tail";
	my $result;
	my $result = &LONCAPA::Lond::server_certs(\%perlvar);
	&Reply($client,\$result,$userinput);
	return;
	}
	&register_handler("servercerts", \&server_certs_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 1926 sub authenticate_handler {	Line 2186 sub authenticate_handler {
my ($remote,$hosted);	my ($remote,$hosted);
my $remotesession = &get_usersession_config($udom,'remotesession');	my $remotesession = &get_usersession_config($udom,'remotesession');
if (ref($remotesession) eq 'HASH') {	if (ref($remotesession) eq 'HASH') {
$remote = $remotesession->{'remote'}	$remote = $remotesession->{'remote'};
}	}
my $hostedsession = &get_usersession_config($clienthomedom,'hostedsession');	my $hostedsession = &get_usersession_config($clienthomedom,'hostedsession');
if (ref($hostedsession) eq 'HASH') {	if (ref($hostedsession) eq 'HASH') {
$hosted = $hostedsession->{'hosted'};	$hosted = $hostedsession->{'hosted'};
}	}
my $loncaparev = $clientversion;
if ($loncaparev eq '') {
$loncaparev = $Apache::lonnet::loncaparevs{$clientname};
}
$canhost = &Apache::lonnet::can_host_session($udom,$clientname,	$canhost = &Apache::lonnet::can_host_session($udom,$clientname,
$loncaparev,	$clientversion,
$remote,$hosted);	$remote,$hosted);
}	}
}	}
Line 2017 sub change_password_handler {	Line 2273 sub change_password_handler {
my ($howpwd,$contentpwd)=split(/:/,$realpasswd);	my ($howpwd,$contentpwd)=split(/:/,$realpasswd);
if ($howpwd eq 'internal') {	if ($howpwd eq 'internal') {
&Debug("internal auth");	&Debug("internal auth");
my $salt=time;	my $ncpass = &hash_passwd($udom,$npass);
$salt=substr($salt,6,2);
my $ncpass=crypt($npass,$salt);
if(&rewrite_password_file($udom, $uname, "internal:$ncpass")) {	if(&rewrite_password_file($udom, $uname, "internal:$ncpass")) {
my $msg="Result of password change for $uname: pwchange_success";	my $msg="Result of password change for $uname: pwchange_success";
if ($lonhost) {	if ($lonhost) {
$msg .= " - request originated from: $lonhost";	$msg .= " - request originated from: $lonhost";
}	}
&logthis($msg);	&logthis($msg);
	&update_passwd_history($uname,$udom,$howpwd,$context);
&Reply($client, "ok\n", $userinput);	&Reply($client, "ok\n", $userinput);
} else {	} else {
&logthis("Unable to open $uname passwd "	&logthis("Unable to open $uname passwd "
Line 2034 sub change_password_handler {	Line 2289 sub change_password_handler {
}	}
} elsif ($howpwd eq 'unix' && $context ne 'reset_by_email') {	} elsif ($howpwd eq 'unix' && $context ne 'reset_by_email') {
my $result = &change_unix_password($uname, $npass);	my $result = &change_unix_password($uname, $npass);
	if ($result eq 'ok') {
	&update_passwd_history($uname,$udom,$howpwd,$context);
	}
&logthis("Result of password change for $uname: ".	&logthis("Result of password change for $uname: ".
$result);	$result);
&Reply($client, \$result, $userinput);	&Reply($client, \$result, $userinput);
Line 2056 sub change_password_handler {	Line 2314 sub change_password_handler {
}	}
&register_handler("passwd", \&change_password_handler, 1, 1, 0);	&register_handler("passwd", \&change_password_handler, 1, 1, 0);

	sub hash_passwd {
	my ($domain,$plainpass,@rest) = @_;
	my ($salt,$cost);
	if (@rest) {
	$cost = $rest[0];
	# salt is first 22 characters, base-64 encoded by bcrypt
	my $plainsalt = substr($rest[1],0,22);
	$salt = Crypt::Eksblowfish::Bcrypt::de_base64($plainsalt);
	} else {
	my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
	my $defaultcost = $domdefaults{'intauth_cost'};
	if (($defaultcost eq '') \|\| ($defaultcost =~ /D/)) {
	$cost = 10;
	} else {
	$cost = $defaultcost;
	}
	# Generate random 16-octet base64 salt
	$salt = "";
	$salt .= pack("C", int rand(256)) for 1..16;
	}
	my $hash = &Crypt::Eksblowfish::Bcrypt::bcrypt_hash({
	key_nul => 1,
	cost => $cost,
	salt => $salt,
	}, Digest::SHA::sha512(Encode::encode('UTF-8',$plainpass)));

	my $result = join("!", "", "bcrypt", sprintf("%02d",$cost),
	&Crypt::Eksblowfish::Bcrypt::en_base64($salt).
	&Crypt::Eksblowfish::Bcrypt::en_base64($hash));
	return $result;
	}

#	#
# Create a new user. User in this case means a lon-capa user.	# Create a new user. User in this case means a lon-capa user.
# The user must either already exist in some authentication realm	# The user must either already exist in some authentication realm
Line 2099 sub add_user_handler {	Line 2389 sub add_user_handler {
."makeuser";	."makeuser";
}	}
unless ($fperror) {	unless ($fperror) {
my $result=&make_passwd_file($uname,$udom,$umode,$npass, $passfilename);	my $result=&make_passwd_file($uname,$udom,$umode,$npass,
	$passfilename,'makeuser');
&Reply($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 2168 sub change_authentication_handler {	Line 2459 sub change_authentication_handler {
my $result = &change_unix_password($uname, $npass);	my $result = &change_unix_password($uname, $npass);
&logthis("Result of password change for $uname: ".$result);	&logthis("Result of password change for $uname: ".$result);
if ($result eq "ok") {	if ($result eq "ok") {
	&update_passwd_history($uname,$udom,$umode,'changeuserauth');
&Reply($client, \$result);	&Reply($client, \$result);
} else {	} else {
&Failure($client, \$result);	&Failure($client, \$result);
}	}
} else {	} else {
my $result=&make_passwd_file($uname,$udom,$umode,$npass,$passfilename);	my $result=&make_passwd_file($uname,$udom,$umode,$npass,
	$passfilename,'changeuserauth');
#	#
# 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,
Line 2194 sub change_authentication_handler {	Line 2487 sub change_authentication_handler {
}	}
&register_handler("changeuserauth", \&change_authentication_handler, 1,1, 0);	&register_handler("changeuserauth", \&change_authentication_handler, 1,1, 0);

	sub update_passwd_history {
	my ($uname,$udom,$umode,$context) = @_;
	my $proname=&propath($udom,$uname);
	my $now = time;
	if (open(my $fh,">>$proname/passwd.log")) {
	print $fh "$now:$umode:$context\n";
	close($fh);
	}
	return;
	}

#	#
# Determines if this is the home server for a user. The home server	# Determines if this is the home server for a user. The home server
# for a user will have his/her lon-capa passwd file. Therefore all we need	# for a user will have his/her lon-capa passwd file. Therefore all we need
Line 2280 sub update_resource_handler {	Line 2584 sub update_resource_handler {
# FIXME: this should use the LWP mechanism, not internal alarms.	# FIXME: this should use the LWP mechanism, not internal alarms.
alarm(1200);	alarm(1200);
{	{
my $ua=new LWP::UserAgent;
my $request=new HTTP::Request('GET',"$remoteurl");	my $request=new HTTP::Request('GET',"$remoteurl");
$response=$ua->request($request,$transname);	$response=&LONCAPA::LWPReq::makerequest($clientname,$request,$transname,\%perlvar,1200,0,1);
}	}
alarm(0);	alarm(0);
if ($response->is_error()) {	if ($response->is_error()) {
Line 2295 sub update_resource_handler {	Line 2598 sub update_resource_handler {
# FIXME: isn't there an internal LWP mechanism for this?	# FIXME: isn't there an internal LWP mechanism for this?
alarm(120);	alarm(120);
{	{
my $ua=new LWP::UserAgent;
my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');	my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
my $mresponse=$ua->request($mrequest,$fname.'.meta');	my $mresponse = &LONCAPA::LWPReq::makerequest($clientname,$mrequest,$fname.'.meta',\%perlvar,120,0,1);
if ($mresponse->is_error()) {	if ($mresponse->is_error()) {
unlink($fname.'.meta');	unlink($fname.'.meta');
}	}
Line 2372 sub fetch_user_file_handler {	Line 2674 sub fetch_user_file_handler {
my $remoteurl=$clientprotocol.'://'.$clienthost.'/userfiles/'.$fname;	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(1200);
{	{
my $ua=new LWP::UserAgent;
my $request=new HTTP::Request('GET',"$remoteurl");	my $request=new HTTP::Request('GET',"$remoteurl");
$response=$ua->request($request,$transname);	my $verifycert = 1;
	my @machine_ids = &Apache::lonnet::current_machine_ids();
	if (grep(/^\Q$clientname\E$/,@machine_ids)) {
	$verifycert = 0;
	}
	$response = &LONCAPA::LWPReq::makerequest($clientname,$request,$transname,\%perlvar,1200,$verifycert);
}	}
alarm(0);	alarm(0);
if ($response->is_error()) {	if ($response->is_error()) {
Line 2445 sub remove_user_file_handler {	Line 2751 sub remove_user_file_handler {
if (-e $file) {	if (-e $file) {
#	#
# If the file is a regular file unlink is fine...	# If the file is a regular file unlink is fine...
# However it's possible the client wants a dir.	# However it's possible the client wants a dir
# removed, in which case rmdir is more approprate:	# removed, in which case rmdir is more appropriate.
	# Note: rmdir will only remove an empty directory.
#	#
if (-f $file){	if (-f $file){
unlink($file);	unlink($file);
	# for html files remove the associated .bak file
	# which may have been created by the editor.
	if ($ufile =~ m{^((docs\|supplemental)/(?:\d+\|default)/\d+(?:\|/.+)/)[^/]+\.x?html?$}i) {
	my $path = $1;
	if (-e $file.'.bak') {
	unlink($file.'.bak');
	}
	}
} elsif(-d $file) {	} elsif(-d $file) {
rmdir($file);	rmdir($file);
}	}
Line 2816 sub newput_user_profile_entry {	Line 3131 sub newput_user_profile_entry {
&logthis("error: ".($!+0)." untie (GDBM) failed ".	&logthis("error: ".($!+0)." untie (GDBM) failed ".
"while attempting newput - early out as key exists");	"while attempting newput - early out as key exists");
}	}
&Failure($client, "key_exists: ".$key."\n",$userinput);	&Failure($client, "key_exists: ".$key."\n",$userinput);
return 1;	return 1;
}	}
}	}

Line 3219 sub get_profile_keys {	Line 3534 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 3298 sub dump_with_regexp {	Line 3624 sub dump_with_regexp {
my ($cmd, $tail, $client) = @_;	my ($cmd, $tail, $client) = @_;

my $res = LONCAPA::Lond::dump_with_regexp($tail, $clientversion);	my $res = LONCAPA::Lond::dump_with_regexp($tail, $clientversion);

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

return 1;	return 1;
Line 3340 sub store_handler {	Line 3666 sub store_handler {
my ($cmd, $tail, $client) = @_;	my ($cmd, $tail, $client) = @_;

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

chomp($tail);	chomp($tail);
my ($udom,$uname,$namespace,$rid,$what,$laststore) =split(/:/,$tail);	my ($udom,$uname,$namespace,$rid,$what,$laststore) =split(/:/,$tail);
if ($namespace ne 'roles') {	if ($namespace ne 'roles') {
Line 3370 sub store_handler {	Line 3695 sub store_handler {
$numtrans =~ s/D//g;	$numtrans =~ s/D//g;
}	}
}	}

$hashref->{"version:$rid"}++;	$hashref->{"version:$rid"}++;
my $version=$hashref->{"version:$rid"};	my $version=$hashref->{"version:$rid"};
my $allkeys='';	my $allkeys='';
Line 3387 sub store_handler {	Line 3711 sub store_handler {
if ($numtrans) {	if ($numtrans) {
$msg = 'delay:'.$numtrans;	$msg = 'delay:'.$numtrans;
}	}
&Reply($client, "$msg\n", $userinput);	&Reply($client, "$msg\n", $userinput);
} else {	} else {
&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ".	&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ".
"while attempting store\n", $userinput);	"while attempting store\n", $userinput);
Line 3904 sub put_course_id_hash_handler {	Line 4228 sub put_course_id_hash_handler {
#	#
# domcloner - flag to indicate if user can create CCs in course's domain.	# domcloner - flag to indicate if user can create CCs in course's domain.
# If so, ability to clone course is automatic.	# If so, ability to clone course is automatic.
# hasuniquecode - filter by courses for which a six character unique code has	# hasuniquecode - filter by courses for which a six character unique code has
# been set.	# been set.
#	#
# $client - The socket open on the client.	# $client - The socket open on the client.
Line 3914 sub put_course_id_hash_handler {	Line 4238 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,
Line 4361 sub put_domain_handler {	Line 4696 sub put_domain_handler {
}	}
&register_handler("putdom", \&put_domain_handler, 0, 1, 0);	&register_handler("putdom", \&put_domain_handler, 0, 1, 0);

	# Updates one or more entries in clickers.db file at the domain level
	#
	# Parameters:
	# $cmd - The command that got us here.
	# $tail - Tail of the command (remaining parameters).
	# In this case a colon separated list containing:
	# (a) the domain for which we are updating the entries,
	# (b) the action required -- add or del -- and
	# (c) a &-separated list of entries to add or delete.
	# $client - File descriptor connected to client.
	# Returns
	# 1 - Continue processing.
	# 0 - Requested to exit, caller should shut down.
	# Side effects:
	# reply is written to $client.
	#


	sub update_clickers {
	my ($cmd, $tail, $client) = @_;

	my $userinput = "$cmd:$tail";
	my ($udom,$action,$what) =split(/:/,$tail,3);
	chomp($what);

	my $hashref = &tie_domain_hash($udom, "clickers", &GDBM_WRCREAT(),
	"U","$action:$what");

	if (!$hashref) {
	&Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ".
	"while attempting updateclickers\n", $userinput);
	return 1;
	}

	my @pairs=split(/\&/,$what);
	foreach my $pair (@pairs) {
	my ($key,$value)=split(/=/,$pair);
	if ($action eq 'add') {
	if (exists($hashref->{$key})) {
	my @newvals = split(/,/,&unescape($value));
	my @currvals = split(/,/,&unescape($hashref->{$key}));
	my @merged = sort(keys(%{{map { $_ => 1 } (@newvals,@currvals)}}));
	$hashref->{$key}=&escape(join(',',@merged));
	} else {
	$hashref->{$key}=$value;
	}
	} elsif ($action eq 'del') {
	if (exists($hashref->{$key})) {
	my %current;
	map { $current{$_} = 1; } split(/,/,&unescape($hashref->{$key}));
	map { delete($current{$_}); } split(/,/,&unescape($value));
	if (keys(%current)) {
	$hashref->{$key}=&escape(join(',',sort(keys(%current))));
	} else {
	delete($hashref->{$key});
	}
	}
	}
	}
	if (&untie_user_hash($hashref)) {
	&Reply( $client, "ok\n", $userinput);
	} else {
	&Failure($client, "error: ".($!+0)." untie(GDBM) failed ".
	"while attempting put\n",
	$userinput);
	}
	return 1;
	}
	&register_handler("updateclickers", \&update_clickers, 0, 1, 0);


	# Deletes one or more entries in a namespace db file at the domain level
	#
	# Parameters:
	# $cmd - The command that got us here.
	# $tail - Tail of the command (remaining parameters).
	# In this case a colon separated list containing:
	# (a) the domain for which we are deleting the entries,
	# (b) &-separated list of keys to delete.
	# $client - File descriptor connected to client.
	# Returns
	# 1 - Continue processing.
	# 0 - Requested to exit, caller should shut down.
	# Side effects:
	# reply is written to $client.
	#

	sub del_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(),
	"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", \&del_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 4520 sub get_id_handler {	Line 4971 sub get_id_handler {
# Returns:	# Returns:
# 1 - Continue processing	# 1 - Continue processing
# 0 - Exit server.	# 0 - Exit server.
#	#
#	#

sub del_id_handler {	sub del_id_handler {
Line 5266 sub create_auto_enroll_password_handler	Line 5717 sub create_auto_enroll_password_handler
&register_handler("autocreatepassword", \&create_auto_enroll_password_handler,	&register_handler("autocreatepassword", \&create_auto_enroll_password_handler,
0, 1, 0);	0, 1, 0);

	sub auto_export_grades_handler {
	my ($cmd, $tail, $client) = @_;
	my $userinput = "$cmd:$tail";
	my ($cdom,$cnum,$info,$data) = split(/:/,$tail);
	my $inforef = &Apache::lonnet::thaw_unescape($info);
	my $dataref = &Apache::lonnet::thaw_unescape($data);
	my ($outcome,$result);;
	eval {
	local($SIG{__DIE__})='DEFAULT';
	my %rtnhash;
	$outcome=&localenroll::export_grades($cdom,$cnum,$inforef,$dataref,\%rtnhash);
	if ($outcome eq 'ok') {
	foreach my $key (keys(%rtnhash)) {
	$result .= &escape($key).'='.&Apache::lonnet::freeze_escape($rtnhash{$key}).'&';
	}
	$result =~ s/\&$//;
	}
	};
	if (!$@) {
	if ($outcome eq 'ok') {
	if ($cipher) {
	my $cmdlength=length($result);
	$result.=" ";
	my $encresult='';
	for (my $encidx=0;$encidx<=$cmdlength;$encidx+=8) {
	$encresult.= unpack("H16",
	$cipher->encrypt(substr($result,
	$encidx,
	8)));
	}
	&Reply( $client, "enc:$cmdlength:$encresult\n", $userinput);
	} else {
	&Failure( $client, "error:no_key\n", $userinput);
	}
	} else {
	&Reply($client, "$outcome\n", $userinput);
	}
	} else {
	&Failure($client,"export_error\n",$userinput);
	}
	return 1;
	}
	&register_handler("autoexportgrades", \&auto_export_grades_handler,
	0, 1, 0);

# Retrieve and remove temporary files created by/during autoenrollment.	# Retrieve and remove temporary files created by/during autoenrollment.
#	#
# Formal Parameters:	# Formal Parameters:
# $cmd - The command that got us dispatched.	# $cmd - The command that got us dispatched.
# $tail - The tail of the command. In our case this is a colon	# $tail - The tail of the command. In our case this is a colon
# separated list that will be split into:	# separated list that will be split into:
# $filename - The name of the file to remove.	# $filename - The name of the file to retrieve.
# The filename is given as a path relative to	# The filename is given as a path relative to
# the LonCAPA temp file directory.	# the LonCAPA temp file directory.
# $client - Socket open on the client.	# $client - Socket open on the client.
Line 5286 sub retrieve_auto_file_handler {	Line 5782 sub retrieve_auto_file_handler {
my ($filename) = split(/:/, $tail);	my ($filename) = split(/:/, $tail);

my $source = $perlvar{'lonDaemons'}.'/tmp/'.$filename;	my $source = $perlvar{'lonDaemons'}.'/tmp/'.$filename;
if ( (-e $source) && ($filename ne '') ) {
	if ($filename =~m{/\.\./}) {
	&Failure($client, "refused\n", $userinput);
	} elsif ($filename !~ /^$LONCAPA::match_domain\_$LONCAPA::match_courseid\_.+_classlist\.xml$/) {
	&Failure($client, "refused\n", $userinput);
	} elsif ( (-e $source) && ($filename ne '') ) {
my $reply = '';	my $reply = '';
if (open(my $fh,$source)) {	if (open(my $fh,$source)) {
while (<$fh>) {	while (<$fh>) {
Line 5318 sub crsreq_checks_handler {	Line 5819 sub crsreq_checks_handler {
my $userinput = "$cmd:$tail";	my $userinput = "$cmd:$tail";
my $dom = $tail;	my $dom = $tail;
my $result;	my $result;
my @reqtypes = ('official','unofficial','community','textbook');	my @reqtypes = ('official','unofficial','community','textbook','placement');
eval {	eval {
local($SIG{__DIE__})='DEFAULT';	local($SIG{__DIE__})='DEFAULT';
my %validations;	my %validations;
Line 5394 sub crsreq_update_handler {	Line 5895 sub crsreq_update_handler {
$title,$code,$accessstart,$accessend,	$title,$code,$accessstart,$accessend,
$incoming,\%rtnhash);	$incoming,\%rtnhash);
if ($outcome eq 'ok') {	if ($outcome eq 'ok') {
my @posskeys = qw(createdweb createdmsg queuedweb queuedmsg formitems reviewweb);	my @posskeys = qw(createdweb createdmsg createdcustomized createdactions queuedweb queuedmsg formitems reviewweb validationjs onload javascript);
foreach my $key (keys(%rtnhash)) {	foreach my $key (keys(%rtnhash)) {
if (grep(/^\Q$key\E/,@posskeys)) {	if (grep(/^\Q$key\E/,@posskeys)) {
$result .= &escape($key).'='.&Apache::lonnet::freeze_escape($rtnhash{$key}).'&';	$result .= &escape($key).'='.&Apache::lonnet::freeze_escape($rtnhash{$key}).'&';
Line 5923 sub get_request {	Line 6424 sub get_request {
#	#
# Parameters:	# Parameters:
# user_input - The request received from the client (lonc).	# user_input - The request received from the client (lonc).
	#
# Returns:	# Returns:
# true to keep processing, false if caller should exit.	# true to keep processing, false if caller should exit.
#	#
sub process_request {	sub process_request {
my ($userinput) = @_; # Easier for now to break style than to	my ($userinput) = @_; # Easier for now to break style than to
# fix all the userinput -> user_input.	# fix all the userinput -> user_input.
my $wasenc = 0; # True if request was encrypted.	my $wasenc = 0; # True if request was encrypted.
# ------------------------------------------------------------ See if encrypted	# ------------------------------------------------------------ See if encrypted
# for command	# for command
Line 6008 sub process_request {	Line 6510 sub process_request {
Debug("Client not privileged to do this operation");	Debug("Client not privileged to do this operation");
$ok = 0;	$ok = 0;
}	}
	if ($ok) {
	if (ref($trust{$command}) eq 'HASH') {
	my $donechecks;
	if ($trust{$command}{'anywhere'}) {
	$donechecks = 1;
	} elsif ($trust{$command}{'manageronly'}) {
	unless (&isManager()) {
	$ok = 0;
	}
	$donechecks = 1;
	} elsif ($trust{$command}{'institutiononly'}) {
	unless ($clientsameinst) {
	$ok = 0;
	}
	$donechecks = 1;
	} elsif ($clientsameinst) {
	$donechecks = 1;
	}
	unless ($donechecks) {
	foreach my $rule (keys(%{$trust{$command}})) {
	next if ($rule eq 'remote');
	if ($trust{$command}{$rule}) {
	if ($clientprohibited{$rule}) {
	$ok = 0;
	} else {
	$ok = 1;
	$donechecks = 1;
	last;
	}
	}
	}
	}
	unless ($donechecks) {
	if ($trust{$command}{'remote'}) {
	if ($clientremoteok) {
	$ok = 1;
	} else {
	$ok = 0;
	}
	}
	}
	}
	}

if($ok) {	if($ok) {
Debug("Dispatching to handler $command $tail");	Debug("Dispatching to handler $command $tail");
Line 6018 sub process_request {	Line 6563 sub process_request {
Failure($client, "refused\n", $userinput);	Failure($client, "refused\n", $userinput);
return 1;	return 1;
}	}
	}
}

print $client "unknown_cmd\n";	print $client "unknown_cmd\n";
# -------------------------------------------------------------------- complete	# -------------------------------------------------------------------- complete
Line 6276 sub UpdateHosts {	Line 6820 sub UpdateHosts {
# will take care of new and changed hosts as connections come into being.	# will take care of new and changed hosts as connections come into being.

&Apache::lonnet::reset_hosts_info();	&Apache::lonnet::reset_hosts_info();
	my %active;

foreach my $child (keys(%children)) {	foreach my $child (keys(%children)) {
my $childip = $children{$child};	my $childip = $children{$child};
Line 6285 sub UpdateHosts {	Line 6830 sub UpdateHosts {
." $child for ip $childip </font>");	." $child for ip $childip </font>");
kill('INT', $child);	kill('INT', $child);
} else {	} else {
	$active{$child} = $childip;
logthis('<font color="green"> keeping child for ip '	logthis('<font color="green"> keeping child for ip '
." $childip (pid=$child) </font>");	." $childip (pid=$child) </font>");
}	}
}	}

	my %oldconf = %secureconf;
	my %connchange;
	if (lonssl::Read_Connect_Config(\%secureconf,\%perlvar) eq 'ok') {
	logthis('<font color="blue"> Reloaded SSL connection rules </font>');
	} else {
	logthis('<font color="yellow"> Failed to reload SSL connection rules </font>');
	}
	if ((ref($oldconf{'connfrom'}) eq 'HASH') && (ref($secureconf{'connfrom'}) eq 'HASH')) {
	foreach my $type ('dom','intdom','other') {
	if ((($oldconf{'connfrom'}{$type} eq 'no') && ($secureconf{'connfrom'}{$type} eq 'req')) \|\|
	(($oldconf{'connfrom'}{$type} eq 'req') && ($secureconf{'connfrom'}{$type} eq 'no'))) {
	$connchange{$type} = 1;
	}
	}
	}
	if (keys(%connchange)) {
	foreach my $child (keys(%active)) {
	my $childip = $active{$child};
	if ($childip ne '127.0.0.1') {
	my $childhostname = gethostbyaddr(Socket::inet_aton($childip),AF_INET);
	if ($childhostname ne '') {
	my $childlonhost = &Apache::lonnet::get_server_homeID($childhostname);
	my ($samedom,$sameinst) = &set_client_info($childlonhost);
	if ($samedom) {
	if ($connchange{'dom'}) {
	logthis('<font color="blue"> UpdateHosts killing child '
	." $child for ip $childip </font>");
	kill('INT', $child);
	}
	} elsif ($sameinst) {
	if ($connchange{'intdom'}) {
	logthis('<font color="blue"> UpdateHosts killing child '
	." $child for ip $childip </font>");
	kill('INT', $child);
	}
	} else {
	if ($connchange{'other'}) {
	logthis('<font color="blue"> UpdateHosts killing child '
	." $child for ip $childip </font>");
	kill('INT', $child);
	}
	}
	}
	}
	}
	}
ReloadApache;	ReloadApache;
&status("Finished reloading hosts.tab");	&status("Finished reloading hosts.tab");
}	}


sub checkchildren {	sub checkchildren {
&status("Checking on the children (sending signals)");	&status("Checking on the children (sending signals)");
&initnewstatus();	&initnewstatus();
Line 6363 sub Debug {	Line 6955 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($reply)) {
Line 6525 if ($arch eq 'unknown') {	Line 7120 if ($arch eq 'unknown') {
chomp($arch);	chomp($arch);
}	}

	unless (lonssl::Read_Connect_Config(\%secureconf,\%perlvar) eq 'ok') {
	&logthis('<font color="blue">No connectionrules table. Will fallback to loncapa.conf</font>');
	}

# --------------------------------------------------------------	# --------------------------------------------------------------
# Accept connections. When a connection comes in, it is validated	# Accept connections. When a connection comes in, it is validated
# and if good, a child process is created to process transactions	# and if good, a child process is created to process transactions
Line 6616 sub make_new_child {	Line 7215 sub make_new_child {
}	}
} elsif ($dist =~ /^suse(\d+\.\d+)$/) {	} elsif ($dist =~ /^suse(\d+\.\d+)$/) {
if (($1 eq '9.3') \|\| ($1 >= 12.2)) {	if (($1 eq '9.3') \|\| ($1 >= 12.2)) {
$no_ets = 1;	$no_ets = 1;
}	}
} elsif ($dist =~ /^sles(\d+)$/) {	} elsif ($dist =~ /^sles(\d+)$/) {
if ($1 > 11) {	if ($1 > 11) {
Line 6628 sub make_new_child {	Line 7227 sub make_new_child {
}	}
}	}
unless ($no_ets) {	unless ($no_ets) {
&Authen::Krb5::init_ets();	&Authen::Krb5::init_ets();
}	}

&status('Accepted connection');	&status('Accepted connection');
# =============================================================================	# =============================================================================
Line 6655 sub make_new_child {	Line 7254 sub make_new_child {
$ConnectionType = "manager";	$ConnectionType = "manager";
$clientname = $managers{$outsideip};	$clientname = $managers{$outsideip};
}	}
my $clientok;	my ($clientok,$clientinfoset);

if ($clientrec \|\| $ismanager) {	if ($clientrec \|\| $ismanager) {
&status("Waiting for init from $clientip $clientname");	&status("Waiting for init from $clientip $clientname");
Line 6673 sub make_new_child {	Line 7272 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, my $inittype, $clientversion) = split(/:/, $remotereq);	(my $i, my $inittype, $clientversion) = split(/:/, $remotereq);
# For LON-CAPA 2.9, the client session will have sent its LON-CAPA	# 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,	# version when initiating the connection. For LON-CAPA 2.8 and older,
# the version is retrieved from the global %loncaparevs in lonnet.pm.	# the version is retrieved from the global %loncaparevs in lonnet.pm.
# $clientversion contains path to keyfile if $inittype eq 'local'	# $clientversion contains path to keyfile if $inittype eq 'local'
# it's overridden below in this case	# it's overridden below in this case
$clientversion \|\|= $Apache::lonnet::loncaparevs{$clientname};	$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
# insecure (if allowed).	# insecure (if allowed).

	if ($inittype eq "ssl") {
	my $context;
	if ($clientsamedom) {
	$context = 'dom';
	if ($secureconf{'connfrom'}{'dom'} eq 'no') {
	$inittype = "";
	}
	} elsif ($clientsameinst) {
	$context = 'intdom';
	if ($secureconf{'connfrom'}{'intdom'} eq 'no') {
	$inittype = "";
	}
	} else {
	$context = 'other';
	if ($secureconf{'connfrom'}{'other'} eq 'no') {
	$inittype = "";
	}
	}
	if ($inittype eq '') {
	&logthis("<font color=\"blue\"> Domain config set "
	."to no ssl for $clientname (context: $context)"
	." -- trying insecure auth</font>");
	}
	}

if($inittype eq "ssl") {	if($inittype eq "ssl") {
my ($ca, $cert) = lonssl::CertificateFile;	my ($ca, $cert) = lonssl::CertificateFile;
my $kfile = lonssl::KeyFile;	my $kfile = lonssl::KeyFile;
Line 6716 sub make_new_child {	Line 7340 sub make_new_child {
close $client;	close $client;
}	}
} elsif ($inittype eq "ssl") {	} elsif ($inittype eq "ssl") {
my $key = SSLConnection($client);	my $key = SSLConnection($client,$clientname);
if ($key) {	if ($key) {
$clientok = 1;	$clientok = 1;
my $cipherkey = pack("H32", $key);	my $cipherkey = pack("H32", $key);
Line 6731 sub make_new_child {	Line 7355 sub make_new_child {
}	}

} else {	} else {
	$clientinfoset = &set_client_info();
my $ok = InsecureConnection($client);	my $ok = InsecureConnection($client);
if($ok) {	if($ok) {
$clientok = 1;	$clientok = 1;
Line 6743 sub make_new_child {	Line 7368 sub make_new_child {
."Attempted insecure connection disallowed </font>");	."Attempted insecure connection disallowed </font>");
close $client;	close $client;
$clientok = 0;	$clientok = 0;

}	}
}	}
} else {	} else {
Line 6752 sub make_new_child {	Line 7376 sub make_new_child {
."$clientip failed to initialize: >$remotereq< </font>");	."$clientip failed to initialize: >$remotereq< </font>");
&status('No init '.$clientip);	&status('No init '.$clientip);
}	}

} else {	} else {
&logthis(	&logthis(
"<font color='blue'>WARNING: Unknown client $clientip</font>");	"<font color='blue'>WARNING: Unknown client $clientip</font>");
Line 6770 sub make_new_child {	Line 7393 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);	unless ($clientinfoset) {
my $clientserverhomeID = &Apache::lonnet::get_server_homeID($clienthost);	$clientinfoset = &set_client_info();
$clienthomedom = &Apache::lonnet::host_domain($clientserverhomeID);	}
	$clientremoteok = 0;
	unless ($clientsameinst) {
	$clientremoteok = 1;
	my $defdom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
	%clientprohibited = &get_prohibited($defdom);
	if ($clientintdom) {
	my $remsessconf = &get_usersession_config($defdom,'remotesession');
	if (ref($remsessconf) eq 'HASH') {
	if (ref($remsessconf->{'remote'}) eq 'HASH') {
	if (ref($remsessconf->{'remote'}->{'excludedomain'}) eq 'ARRAY') {
	if (grep(/^\Q$clientintdom\E$/,@{$remsessconf->{'remote'}->{'excludedomain'}})) {
	$clientremoteok = 0;
	}
	}
	if (ref($remsessconf->{'remote'}->{'includedomain'}) eq 'ARRAY') {
	if (grep(/^\Q$clientintdom\E$/,@{$remsessconf->{'remote'}->{'includedomain'}})) {
	$clientremoteok = 1;
	} else {
	$clientremoteok = 0;
	}
	}
	}
	}
	}
	}
while(($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 6788 sub make_new_child {	Line 7436 sub make_new_child {
&logthis("<font color='blue'>WARNING: "	&logthis("<font color='blue'>WARNING: "
."Rejected client $clientip, closing connection</font>");	."Rejected client $clientip, closing connection</font>");
}	}
}	}

# =============================================================================	# =============================================================================

Line 6802 sub make_new_child {	Line 7450 sub make_new_child {
exit;	exit;

}	}

	#
	# Used to determine if a particular client is from the same domain
	# as the current server, or from the same internet domain.
	#
	# Optional input -- the client to check for domain and internet domain.
	# If not specified, defaults to the package variable: $clientname
	#
	# If called in array context will not set package variables, but will
	# instead return an array of two values - (a) true if client is in the
	# same domain as the server, and (b) true if client is in the same internet
	# domain.
	#
	# If called in scalar context, sets package variables for current client:
	#
	# $clienthomedom - LonCAPA domain of homeID for client.
	# $clientsamedom - LonCAPA domain same for this host and client.
	# $clientintdom - LonCAPA "internet domain" for client.
	# $clientsameinst - LonCAPA "internet domain" same for this host & client.
	#
	# returns 1 to indicate package variables have been set for current client.
	#

	sub set_client_info {
	my ($lonhost) = @_;
	$lonhost \|\|= $clientname;
	my $clienthost = &Apache::lonnet::hostname($lonhost);
	my $clientserverhomeID = &Apache::lonnet::get_server_homeID($clienthost);
	my $homedom = &Apache::lonnet::host_domain($clientserverhomeID);
	my $samedom = 0;
	if ($perlvar{'lonDefDom'} eq $homedom) {
	$samedom = 1;
	}
	my $intdom = &Apache::lonnet::internet_dom($clientserverhomeID);
	my $sameinst = 0;
	if ($intdom ne '') {
	my $internet_names = &Apache::lonnet::get_internet_names($currenthostid);
	if (ref($internet_names) eq 'ARRAY') {
	if (grep(/^\Q$intdom\E$/,@{$internet_names})) {
	$sameinst = 1;
	}
	}
	}
	if (wantarray) {
	return ($samedom,$sameinst);
	} else {
	$clienthomedom = $homedom;
	$clientsamedom = $samedom;
	$clientintdom = $intdom;
	$clientsameinst = $sameinst;
	return 1;
	}
	}

#	#
# Determine if a user is an author for the indicated domain.	# Determine if a user is an author for the indicated domain.
#	#
Line 6910 sub password_filename {	Line 7612 sub password_filename {
# domain - domain of the user.	# domain - domain of the user.
# name - User's name.	# name - User's name.
# contents - New contents of the file.	# contents - New contents of the file.
	# saveold - (optional). If true save old file in a passwd.bak file.
# Returns:	# Returns:
# 0 - Failed.	# 0 - Failed.
# 1 - Success.	# 1 - Success.
#	#
sub rewrite_password_file {	sub rewrite_password_file {
my ($domain, $user, $contents) = @_;	my ($domain, $user, $contents, $saveold) = @_;

my $file = &password_filename($domain, $user);	my $file = &password_filename($domain, $user);
if (defined $file) {	if (defined $file) {
	if ($saveold) {
	my $bakfile = $file.'.bak';
	if (CopyFile($file,$bakfile)) {
	chmod(0400,$bakfile);
	&logthis("Old password saved in passwd.bak for internally authenticated user: $user:$domain");
	} else {
	&logthis("Failed to save old password in passwd.bak for internally authenticated user: $user:$domain");
	}
	}
my $pf = IO::File->new(">$file");	my $pf = IO::File->new(">$file");
if($pf) {	if($pf) {
print $pf "$contents\n";	print $pf "$contents\n";
Line 7009 sub validate_user {	Line 7721 sub validate_user {
$contentpwd = $domdefaults{'auth_arg_def'};	$contentpwd = $domdefaults{'auth_arg_def'};
}	}
}	}
}	}
if ($howpwd ne 'nouser') {	if ($howpwd ne 'nouser') {
if($howpwd eq "internal") { # Encrypted is in local password file.	if($howpwd eq "internal") { # Encrypted is in local password file.
$validated = (crypt($password, $contentpwd) eq $contentpwd);	if (length($contentpwd) == 13) {
	$validated = (crypt($password,$contentpwd) eq $contentpwd);
	if ($validated) {
	my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
	if ($domdefaults{'intauth_switch'}) {
	my $ncpass = &hash_passwd($domain,$password);
	my $saveold;
	if ($domdefaults{'intauth_switch'} == 2) {
	$saveold = 1;
	}
	if (&rewrite_password_file($domain,$user,"$howpwd:$ncpass",$saveold)) {
	&update_passwd_history($user,$domain,$howpwd,'conversion');
	&logthis("Validated password hashed with bcrypt for $user:$domain");
	}
	}
	}
	} else {
	$validated = &check_internal_passwd($password,$contentpwd,$domain,$user);
	}
}	}
elsif ($howpwd eq "unix") { # User is a normal unix user.	elsif ($howpwd eq "unix") { # User is a normal unix user.
$contentpwd = (getpwnam($user))[1];	$contentpwd = (getpwnam($user))[1];
Line 7080 sub validate_user {	Line 7810 sub validate_user {
return $validated;	return $validated;
}	}

	sub check_internal_passwd {
	my ($plainpass,$stored,$domain,$user) = @_;
	my (undef,$method,@rest) = split(/!/,$stored);
	if ($method eq 'bcrypt') {
	my $result = &hash_passwd($domain,$plainpass,@rest);
	if ($result ne $stored) {
	return 0;
	}
	my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
	if ($domdefaults{'intauth_check'}) {
	# Upgrade to a larger number of rounds if necessary
	my $defaultcost = $domdefaults{'intauth_cost'};
	if (($defaultcost eq '') \|\| ($defaultcost =~ /D/)) {
	$defaultcost = 10;
	}
	if (int($rest[0])<int($defaultcost)) {
	if ($domdefaults{'intauth_check'} == 1) {
	my $ncpass = &hash_passwd($domain,$plainpass);
	if (&rewrite_password_file($domain,$user,"internal:$ncpass")) {
	&update_passwd_history($user,$domain,'internal','update cost');
	&logthis("Validated password hashed with bcrypt for $user:$domain");
	}
	return 1;
	} elsif ($domdefaults{'intauth_check'} == 2) {
	return 0;
	}
	}
	} else {
	return 1;
	}
	}
	return 0;
	}

	sub get_last_authchg {
	my ($domain,$user) = @_;
	my $lastmod;
	my $logname = &propath($domain,$user).'/passwd.log';
	if (-e "$logname") {
	$lastmod = (stat("$logname"))[9];
	}
	return $lastmod;
	}

sub krb4_authen {	sub krb4_authen {
my ($password,$null,$user,$contentpwd) = @_;	my ($password,$null,$user,$contentpwd) = @_;
my $validated = 0;	my $validated = 0;
Line 7395 sub change_unix_password {	Line 8169 sub change_unix_password {


sub make_passwd_file {	sub make_passwd_file {
my ($uname,$udom,$umode,$npass,$passfilename)=@_;	my ($uname,$udom,$umode,$npass,$passfilename,$action)=@_;
my $result="ok";	my $result="ok";
if ($umode eq 'krb4' or $umode eq 'krb5') {	if ($umode eq 'krb4' or $umode eq 'krb5') {
{	{
my $pf = IO::File->new(">$passfilename");	my $pf = IO::File->new(">$passfilename");
if ($pf) {	if ($pf) {
print $pf "$umode:$npass\n";	print $pf "$umode:$npass\n";
	&update_passwd_history($uname,$udom,$umode,$action);
} else {	} else {
$result = "pass_file_failed_error";	$result = "pass_file_failed_error";
}	}
}	}
} elsif ($umode eq 'internal') {	} elsif ($umode eq 'internal') {
my $salt=time;	my $ncpass = &hash_passwd($udom,$npass);
$salt=substr($salt,6,2);
my $ncpass=crypt($npass,$salt);
{	{
&Debug("Creating internal auth");	&Debug("Creating internal auth");
my $pf = IO::File->new(">$passfilename");	my $pf = IO::File->new(">$passfilename");
if($pf) {	if($pf) {
print $pf "internal:$ncpass\n";	print $pf "internal:$ncpass\n";
	&update_passwd_history($uname,$udom,$umode,$action);
} else {	} else {
$result = "pass_file_failed_error";	$result = "pass_file_failed_error";
}	}
Line 7424 sub make_passwd_file {	Line 8198 sub make_passwd_file {
my $pf = IO::File->new(">$passfilename");	my $pf = IO::File->new(">$passfilename");
if($pf) {	if($pf) {
print $pf "localauth:$npass\n";	print $pf "localauth:$npass\n";
	&update_passwd_history($uname,$udom,$umode,$action);
} else {	} else {
$result = "pass_file_failed_error";	$result = "pass_file_failed_error";
}	}
Line 7486 sub get_usersession_config {	Line 8261 sub get_usersession_config {
return $usersessionconf;	return $usersessionconf;
} else {	} else {
my %domconfig = &Apache::lonnet::get_dom('configuration',['usersessions'],$dom);	my %domconfig = &Apache::lonnet::get_dom('configuration',['usersessions'],$dom);
if (ref($domconfig{'usersessions'}) eq 'HASH') {	&Apache::lonnet::do_cache_new($name,$dom,$domconfig{'usersessions'},3600);
&Apache::lonnet::do_cache_new($name,$dom,$domconfig{'usersessions'},3600);	return $domconfig{'usersessions'};
return $domconfig{'usersessions'};
}
}	}
return;	return;
}	}

	sub get_prohibited {
	my ($dom) = @_;
	my $name = 'trust';
	my ($trustconfig,$cached)=&Apache::lonnet::is_cached_new($name,$dom);
	unless (defined($cached)) {
	my %domconfig = &Apache::lonnet::get_dom('configuration',['trust'],$dom);
	&Apache::lonnet::do_cache_new($name,$dom,$domconfig{'trust'},3600);
	$trustconfig = $domconfig{'trust'};
	}
	my %prohibited;
	if (ref($trustconfig)) {
	foreach my $prefix (keys(%{$trustconfig})) {
	if (ref($trustconfig->{$prefix}) eq 'HASH') {
	my $reject;
	if (ref($trustconfig->{$prefix}->{'exc'}) eq 'ARRAY') {
	if (grep(/^\Q$clientintdom\E$/,@{$trustconfig->{$prefix}->{'exc'}})) {
	$reject = 1;
	}
	}
	if (ref($trustconfig->{$prefix}->{'inc'}) eq 'ARRAY') {
	if (grep(/^\Q$clientintdom\E$/,@{$trustconfig->{$prefix}->{'inc'}})) {
	$reject = 0;
	} else {
	$reject = 1;
	}
	}
	if ($reject) {
	$prohibited{$prefix} = 1;
	}
	}
	}
	}
	return %prohibited;
	}

sub distro_and_arch {	sub distro_and_arch {
return $dist.':'.$arch;	return $dist.':'.$arch;
Line 7678 Allow for a password to be set.	Line 8485 Allow for a password to be set.

Make a user.	Make a user.

=item passwd	=item changeuserauth

Allow for authentication mechanism and password to be changed.	Allow for authentication mechanism and password to be changed.

Line 7767 for each student, defined perhaps by the	Line 8574 for each student, defined perhaps by the
Returns usernames corresponding to IDs. (These "IDs" are unique identifiers	Returns usernames corresponding to IDs. (These "IDs" are unique identifiers
for each student, defined perhaps by the institutional Registrar.)	for each student, defined perhaps by the institutional Registrar.)

	=item iddel

	Deletes one or more ids in a domain's id database.

=item tmpput	=item tmpput

Accept and store information in temporary space.	Accept and store information in temporary space.
Line 7823 Authen::Krb5	Line 8634 Authen::Krb5

=head1 COREQUISITES	=head1 COREQUISITES

	none

=head1 OSNAMES	=head1 OSNAMES

linux	linux
Line 7910 or the CA's certificate in the call to l	Line 8723 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 8031 Could not rewrite the	Line 8844 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 8060 lond has been asked to exit by its clien	Line 8873 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 8144 file when sent it's USR1 signal. That p	Line 8957 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 8158 Started a new child process for <client>	Line 8971 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 8169 In child process initialization. The pe	Line 8982 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 8219 The client (<client> is the peer's name	Line 9032 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.

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

Removed from v.1.489.2.17
changed lines
	Added in v.1.533