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Diff for /loncom/lond between versions 1.489.2.25 and 1.538

version 1.489.2.25, 2016/09/27 16:30:24	version 1.538, 2017/06/06 13:32:38
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 58 use Mail::Send;	Line 58 use Mail::Send;
use Crypt::Eksblowfish::Bcrypt;	use Crypt::Eksblowfish::Bcrypt;
use Digest::SHA;	use Digest::SHA;
use Encode;	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 74 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 96 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 145 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
	egetdom => {remote => 1, domroles => 1, enroll => 1, },
	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},
	querysend_activitylog => {remote => 1},
	querysend_allusers => {remote => 1, domroles => 1},
	querysend_courselog => {remote => 1},
	querysend_fetchenrollment => {remote => 1},
	querysend_getinstuser => {remote => 1},
	querysend_getmultinstusers => {remote => 1},
	querysend_instdirsearch => {remote => 1, domroles => 1, coaurem => 1},
	querysend_institutionalphotos => {remote => 1},
	querysend_portfolio_metadata => {remote => 1, content => 1},
	querysend_userlog => {remote => 1, domroles => 1},
	querysend_usersearch => {remote => 1, enroll => 1, coaurem => 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 300 sub InsecureConnection {	Line 463 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 667 sub PushFile {	Line 845 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>");	.$tablefile." - error attempting to pull data. </font>");
Line 1434 sub du2_handler {	Line 1610 sub du2_handler {
# (c) /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/userfiles	# (c) /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/userfiles
# or is:	# or is:
#	#
# 2. for a file, and the path (after prepending) does not begin with:	# 2. for a file, and the path (after prepending) does not begin with one of:
# /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/	# (a) /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/
	# (b) /home/httpd/html/res/<domain>/<username>/
#	#
# the response will be "refused".	# the response will be "refused".
#	#
Line 1494 sub ls_handler {	Line 1671 sub ls_handler {
closedir(LSDIR);	closedir(LSDIR);
}	}
} else {	} else {
unless ($ulsdir =~ m{/home/httpd/lonUsers/$LONCAPA::match_domain(?:/[\w\-.@]){3}/$LONCAPA::match_username/}) {	unless (($ulsdir =~ m{/home/httpd/lonUsers/$LONCAPA::match_domain(?:/[\w\-.@]){3}/$LONCAPA::match_username/}) \|\|
	($ulsdir =~ m{/home/httpd/html/res/$LONCAPA::match_domain/$LONCAPA::match_username/})) {
&Failure($client,"refused\n",$userinput);	&Failure($client,"refused\n",$userinput);
return 1;	return 1;
}	}
Line 1531 sub ls_handler {	Line 1709 sub ls_handler {
# (c) /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/userfiles	# (c) /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/userfiles
# or is:	# or is:
#	#
# 2. for a file, and the path (after prepending) does not begin with:	# 2. for a file, and the path (after prepending) does not begin with one of:
# /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/	# (a) /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/
	# (b) /home/httpd/html/res/<domain>/<username>/
#	#
# the response will be "refused".	# the response will be "refused".
#	#
Line 1591 sub ls2_handler {	Line 1770 sub ls2_handler {
closedir(LSDIR);	closedir(LSDIR);
}	}
} else {	} else {
unless ($ulsdir =~ m{/home/httpd/lonUsers/$LONCAPA::match_domain(?:/[\w\-.@]){3}/$LONCAPA::match_username/}) {	unless (($ulsdir =~ m{/home/httpd/lonUsers/$LONCAPA::match_domain(?:/[\w\-.@]){3}/$LONCAPA::match_username/}) \|\|
	($ulsdir =~ m{/home/httpd/html/res/$LONCAPA::match_domain/$LONCAPA::match_username/})) {

&Failure($client,"refused\n",$userinput);	&Failure($client,"refused\n",$userinput);
return 1;	return 1;
}	}
Line 1622 sub ls2_handler {	Line 1803 sub ls2_handler {
#	#
# or is:	# or is:
#	#
# 2. for a file, and the path (after prepending) does not begin with:	# 2. for a file, and the path (after prepending) does not begin with one of:
# /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/	# (a) /home/httpd/lonUsers/<domain>/<1>/<2>/<3>/<username>/
	# (b) /home/httpd/html/res/<domain>/<username>/
#	#
# the response will be "refused".	# the response will be "refused".
#	#
Line 1731 sub ls3_handler {	Line 1913 sub ls3_handler {
}	}
} else {	} else {
unless (($getpropath) \|\| ($getuserdir) \|\|	unless (($getpropath) \|\| ($getuserdir) \|\|
($ulsdir =~ m{/home/httpd/lonUsers/$LONCAPA::match_domain(?:/[\w\-.@]){3}/$LONCAPA::match_username/})) {	($ulsdir =~ m{/home/httpd/lonUsers/$LONCAPA::match_domain(?:/[\w\-.@]){3}/$LONCAPA::match_username/}) \|\|
	($ulsdir =~ m{/home/httpd/html/res/$LONCAPA::match_domain/$LONCAPA::match_username/})) {
&Failure($client,"refused\n",$userinput);	&Failure($client,"refused\n",$userinput);
return 1;	return 1;
}	}
Line 1758 sub read_lonnet_global {	Line 1941 sub read_lonnet_global {
);	);
my %limit_to = (	my %limit_to = (
perlvar => {	perlvar => {
lonOtherAuthen => 1,	lonOtherAuthen => 1,
lonBalancer => 1,	lonBalancer => 1,
lonVersion => 1,	lonVersion => 1,
lonSysEMail => 1,	lonAdmEMail => 1,
lonHostID => 1,	lonSupportEMail => 1,
lonRole => 1,	lonSysEMail => 1,
lonDefDomain => 1,	lonHostID => 1,
lonLoadLim => 1,	lonRole => 1,
lonUserLoadLim => 1,	lonDefDomain => 1,
	lonLoadLim => 1,
	lonUserLoadLim => 1,
}	}
);	);
if (ref($requested) eq 'HASH') {	if (ref($requested) eq 'HASH') {
Line 1878 sub server_distarch_handler {	Line 2063 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 2010 sub authenticate_handler {	Line 2205 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 2119 sub change_password_handler {	Line 2310 sub change_password_handler {
my $result = &change_unix_password($uname, $npass);	my $result = &change_unix_password($uname, $npass);
if ($result eq 'ok') {	if ($result eq 'ok') {
&update_passwd_history($uname,$udom,$howpwd,$context);	&update_passwd_history($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 2151 sub hash_passwd {	Line 2342 sub hash_passwd {
my $plainsalt = substr($rest[1],0,22);	my $plainsalt = substr($rest[1],0,22);
$salt = Crypt::Eksblowfish::Bcrypt::de_base64($plainsalt);	$salt = Crypt::Eksblowfish::Bcrypt::de_base64($plainsalt);
} else {	} else {
my $defaultcost;	my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
my %domconfig =	my $defaultcost = $domdefaults{'intauth_cost'};
&Apache::lonnet::get_dom('configuration',['password'],$domain);
if (ref($domconfig{'password'}) eq 'HASH') {
$defaultcost = $domconfig{'password'}{'cost'};
}
if (($defaultcost eq '') \|\| ($defaultcost =~ /D/)) {	if (($defaultcost eq '') \|\| ($defaultcost =~ /D/)) {
$cost = 10;	$cost = 10;
} else {	} else {
Line 2291 sub change_authentication_handler {	Line 2478 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,$umode,'changeuserauth');	&update_passwd_history($uname,$udom,$umode,'changeuserauth');
&Reply($client, \$result);	&Reply($client, \$result);
} else {	} else {
&Failure($client, \$result);	&Failure($client, \$result);
Line 2411 sub update_resource_handler {	Line 2598 sub update_resource_handler {
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;
# FIXME: cannot replicate files that take more than two minutes to transfer?	# FIXME: cannot replicate files that take more than two minutes to transfer -- needs checking now 1200s timeout used
# alarm(120);	# for LWP request.
# FIXME: this should use the LWP mechanism, not internal alarms.	my $request=new HTTP::Request('GET',"$remoteurl");
alarm(1200);	$response=&LONCAPA::LWPReq::makerequest($clientname,$request,$transname,\%perlvar,1200,0,1);
{
my $ua=new LWP::UserAgent;
my $request=new HTTP::Request('GET',"$remoteurl");
$response=$ua->request($request,$transname);
}
alarm(0);
if ($response->is_error()) {	if ($response->is_error()) {
# FIXME: we should probably clean up here instead of just whine	# FIXME: we should probably clean up here instead of just whine
unlink($transname);	unlink($transname);
Line 2428 sub update_resource_handler {	Line 2609 sub update_resource_handler {
&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?	my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
alarm(120);	my $mresponse = &LONCAPA::LWPReq::makerequest($clientname,$mrequest,$fname.'.meta',\%perlvar,120,0,1);
{	if ($mresponse->is_error()) {
my $ua=new LWP::UserAgent;	unlink($fname.'.meta');
my $mrequest=new HTTP::Request('GET',$remoteurl.'.meta');
my $mresponse=$ua->request($mrequest,$fname.'.meta');
if ($mresponse->is_error()) {
unlink($fname.'.meta');
}
}	}
alarm(0);
}	}
# we successfully transfered, copy file over to real name	# we successfully transfered, copy file over to real name
rename($transname,$fname);	rename($transname,$fname);
Line 2508 sub fetch_user_file_handler {	Line 2683 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);	my $request=new HTTP::Request('GET',"$remoteurl");
{	my $verifycert = 1;
my $ua=new LWP::UserAgent;	my @machine_ids = &Apache::lonnet::current_machine_ids();
my $request=new HTTP::Request('GET',"$remoteurl");	if (grep(/^\Q$clientname\E$/,@machine_ids)) {
$response=$ua->request($request,$transname);	$verifycert = 0;
}	}
alarm(0);	$response = &LONCAPA::LWPReq::makerequest($clientname,$request,$transname,\%perlvar,1200,$verifycert);
if ($response->is_error()) {	if ($response->is_error()) {
unlink($transname);	unlink($transname);
my $message=$response->status_line;	my $message=$response->status_line;
Line 2581 sub remove_user_file_handler {	Line 2756 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 appropriate	# removed, in which case rmdir is more appropriate.
# Note: rmdir will only remove an empty directory.	# Note: rmdir will only remove an empty directory.
#	#
if (-f $file){	if (-f $file){
unlink($file);	unlink($file);
# for html files remove the associated .bak file	# for html files remove the associated .bak file
# which may have been created by the editor.	# which may have been created by the editor.
if ($ufile =~ m{^((docs\|supplemental)/(?:\d+\|default)/\d+(?:\|/.+)/)[^/]+\.x?html?$}i) {	if ($ufile =~ m{^((docs\|supplemental)/(?:\d+\|default)/\d+(?:\|/.+)/)[^/]+\.x?html?$}i) {
my $path = $1;	my $path = $1;
Line 2961 sub newput_user_profile_entry {	Line 3136 sub newput_user_profile_entry {
&logthis("error: ".($!+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 3212 sub get_profile_entry {	Line 3387 sub get_profile_entry {
#	#
# Parameters:	# Parameters:
# $cmd - Command keyword of request (eget).	# $cmd - Command keyword of request (eget).
# $tail - Tail of the command. See GetProfileEntry # for more information about this.	# $tail - Tail of the command. See GetProfileEntry
	# for more information about this.
# $client - File open on the client.	# $client - File open on the client.
# Returns:	# Returns:
# 1 - Continue processing	# 1 - Continue processing
Line 3364 sub get_profile_keys {	Line 3540 sub get_profile_keys {
sub dump_profile_database {	sub dump_profile_database {
my ($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 3443 sub dump_with_regexp {	Line 3630 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 3485 sub store_handler {	Line 3672 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 3515 sub store_handler {	Line 3701 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 $allkeys='';
Line 3532 sub store_handler {	Line 3717 sub store_handler {
if ($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 3775 sub retrieve_chat_handler {	Line 3960 sub retrieve_chat_handler {
# serviced.	# serviced.
#	#
# Parameters:	# Parameters:
# $cmd - COmmand keyword that initiated the request.	# $cmd - Command keyword that initiated the request.
# $tail - Remainder of the command after the keyword.	# $tail - Remainder of the command after the keyword.
# For this function, this consists of a query and	# For this function, this consists of a query and
# 3 arguments that are self-documentingly labelled	# 3 arguments that are self-documentingly labelled
Line 3789 sub retrieve_chat_handler {	Line 3974 sub retrieve_chat_handler {
sub send_query_handler {	sub send_query_handler {
my ($cmd, $tail, $client) = @_;	my ($cmd, $tail, $client) = @_;


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

my ($query,$arg1,$arg2,$arg3)=split(/\:/,$tail);	my ($query,$arg1,$arg2,$arg3)=split(/\:/,$tail);
$query=~s/\n*$//g;	$query=~s/\n*$//g;
	if (($query eq 'usersearch') \|\| ($query eq 'instdirsearch')) {
	my $usersearchconf = &get_usersearch_config($currentdomainid,'directorysrch');
	my $earlyout;
	if (ref($usersearchconf) eq 'HASH') {
	if ($currentdomainid eq $clienthomedom) {
	if ($query eq 'usersearch') {
	if ($usersearchconf->{'lcavailable'} eq '0') {
	$earlyout = 1;
	}
	} else {
	if ($usersearchconf->{'available'} eq '0') {
	$earlyout = 1;
	}
	}
	} else {
	if ($query eq 'usersearch') {
	if ($usersearchconf->{'lclocalonly'}) {
	$earlyout = 1;
	}
	} else {
	if ($usersearchconf->{'localonly'}) {
	$earlyout = 1;
	}
	}
	}
	}
	if ($earlyout) {
	&Reply($client, "query_not_authorized\n");
	return 1;
	}
	}
&Reply($client, "". &sql_reply("$clientname\&$query".	&Reply($client, "". &sql_reply("$clientname\&$query".
"\&$arg1"."\&$arg2"."\&$arg3")."\n",	"\&$arg1"."\&$arg2"."\&$arg3")."\n",
$userinput);	$userinput);
Line 4049 sub put_course_id_hash_handler {	Line 4264 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 4059 sub put_course_id_hash_handler {	Line 4274 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 4506 sub put_domain_handler {	Line 4732 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 4529 sub get_domain_handler {	Line 4871 sub get_domain_handler {
my ($cmd, $tail, $client) = @_;	my ($cmd, $tail, $client) = @_;


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

	my ($udom,$namespace,$what)=split(/:/,$tail,3);
	chomp($what);
	if ($namespace =~ /^enc/) {
	&Failure( $client, "refused\n", $userinput);
	} else {
	my @queries=split(/\&/,$what);
	my $qresult='';
	my $hashref = &tie_domain_hash($udom, "$namespace", &GDBM_READER());
	if ($hashref) {
	for (my $i=0;$i<=$#queries;$i++) {
	$qresult.="$hashref->{$queries[$i]}&";
	}
	if (&untie_domain_hash($hashref)) {
	$qresult=~s/\&$//;
	&Reply($client, \$qresult, $userinput);
	} else {
	&Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ".
	"while attempting getdom\n",$userinput);
	}
	} else {
	&Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".
	"while attempting getdom\n",$userinput);
	}
	}

	return 1;
	}
	&register_handler("getdom", \&get_domain_handler, 0, 1, 0);

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

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

my ($udom,$namespace,$what)=split(/:/,$tail,3);	my ($udom,$namespace,$what)=split(/:/,$tail,3);
chomp($what);	chomp($what);
Line 4542 sub get_domain_handler {	Line 4918 sub get_domain_handler {
}	}
if (&untie_domain_hash($hashref)) {	if (&untie_domain_hash($hashref)) {
$qresult=~s/\&$//;	$qresult=~s/\&$//;
&Reply($client, \$qresult, $userinput);	if ($cipher) {
	my $cmdlength=length($qresult);
	$qresult.=" ";
	my $encqresult='';
	for (my $encidx=0;$encidx<=$cmdlength;$encidx+=8) {
	$encqresult.= unpack("H16",
	$cipher->encrypt(substr($qresult,
	$encidx,
	8)));
	}
	&Reply( $client, "enc:$cmdlength:$encqresult\n", $userinput);
	} else {
	&Failure( $client, "error:no_key\n", $userinput);
	}
} else {	} else {
&Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ".	&Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ".
"while attempting getdom\n",$userinput);	"while attempting egetdom\n",$userinput);
}	}
} else {	} else {
&Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".	&Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".
"while attempting getdom\n",$userinput);	"while attempting egetdom\n",$userinput);
}	}

return 1;	return 1;
}	}
&register_handler("getdom", \&get_domain_handler, 0, 1, 0);	&register_handler("egetdom", \&encrypted_get_domain_handler, 1, 1, 0);

#	#
# Puts an id to a domains id database.	# Puts an id to a domains id database.
Line 4665 sub get_id_handler {	Line 5053 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 5454 sub auto_export_grades_handler {	Line 5842 sub auto_export_grades_handler {
return 1;	return 1;
}	}
&register_handler("autoexportgrades", \&auto_export_grades_handler,	&register_handler("autoexportgrades", \&auto_export_grades_handler,
0, 1, 0);	1, 1, 0);


# Retrieve and remove temporary files created by/during autoenrollment.	# Retrieve and remove temporary files created by/during autoenrollment.
#	#
Line 5477 sub retrieve_auto_file_handler {	Line 5864 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 ($filename =~m{/\.\./}) {	if ($filename =~m{/\.\./}) {
&Failure($client, "refused\n", $userinput);	&Failure($client, "refused\n", $userinput);
} elsif ($filename !~ /^$LONCAPA::match_domain\_$LONCAPA::match_courseid\_.+_classlist\.xml$/) {	} elsif ($filename !~ /^$LONCAPA::match_domain\_$LONCAPA::match_courseid\_.+_classlist\.xml$/) {
Line 5513 sub crsreq_checks_handler {	Line 5901 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($SIG{__DIE__})='DEFAULT';
my %validations;	my %validations;
Line 6118 sub get_request {	Line 6506 sub get_request {
#	#
# Parameters:	# Parameters:
# user_input - The request received from the client (lonc).	# user_input - The request received from the client (lonc).
	#
# Returns:	# Returns:
# true to keep processing, false if caller should exit.	# true to keep processing, false if caller should exit.
#	#
sub process_request {	sub process_request {
my ($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 6203 sub process_request {	Line 6592 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) {
	my $realcommand = $command;
	if ($command eq 'querysend') {
	my ($query,$rest)=split(/\:/,$tail,2);
	$query=~s/\n*$//g;
	my @possqueries =
	qw(userlog courselog fetchenrollment institutionalphotos usersearch instdirsearch getinstuser getmultinstusers);
	if (grep(/^\Q$query\E$/,@possqueries)) {
	$command .= '_'.$query;
	} elsif ($query eq 'prepare activity log') {
	$command .= '_activitylog';
	}
	}
	if (ref($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;
	}
	}
	}
	}
	$command = $realcommand;
	}

if($ok) {	if($ok) {
Debug("Dispatching to handler $command $tail");	Debug("Dispatching to handler $command $tail");
Line 6213 sub process_request {	Line 6658 sub process_request {
Failure($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 6471 sub UpdateHosts {	Line 6915 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 6480 sub UpdateHosts {	Line 6925 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 6558 sub Debug {	Line 7050 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($reply)) {
Line 6720 if ($arch eq 'unknown') {	Line 7215 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 6811 sub make_new_child {	Line 7310 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 ($1 > 11) {
Line 6823 sub make_new_child {	Line 7322 sub make_new_child {
}	}
}	}
unless ($no_ets) {	unless ($no_ets) {
&Authen::Krb5::init_ets();	&Authen::Krb5::init_ets();
}	}

&status('Accepted connection');	&status('Accepted connection');
# =============================================================================	# =============================================================================
Line 6850 sub make_new_child {	Line 7349 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 6868 sub make_new_child {	Line 7367 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 6911 sub make_new_child {	Line 7435 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 6926 sub make_new_child {	Line 7450 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 6938 sub make_new_child {	Line 7463 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 6947 sub make_new_child {	Line 7471 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 6965 sub make_new_child {	Line 7488 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 6983 sub make_new_child {	Line 7531 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 6997 sub make_new_child {	Line 7545 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 7105 sub password_filename {	Line 7707 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 7204 sub validate_user {	Line 7816 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($howpwd eq "internal") { # Encrypted is in local password file.
if (length($contentpwd) == 13) {	if (length($contentpwd) == 13) {
$validated = (crypt($password,$contentpwd) eq $contentpwd);	$validated = (crypt($password,$contentpwd) eq $contentpwd);
if ($validated) {	if ($validated) {
my $ncpass = &hash_passwd($domain,$password);	my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
if (&rewrite_password_file($domain,$user,"$howpwd:$ncpass")) {	if ($domdefaults{'intauth_switch'}) {
&update_passwd_history($user,$domain,$howpwd,'conversion');	my $ncpass = &hash_passwd($domain,$password);
&logthis("Validated password hashed with bcrypt for $user:$domain");	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 {	} else {
$validated = &check_internal_passwd($password,$contentpwd,$domain);	$validated = &check_internal_passwd($password,$contentpwd,$domain,$user);
}	}
}	}
elsif ($howpwd eq "unix") { # User is a normal unix user.	elsif ($howpwd eq "unix") { # User is a normal unix user.
Line 7287 sub validate_user {	Line 7906 sub validate_user {
}	}

sub check_internal_passwd {	sub check_internal_passwd {
my ($plainpass,$stored,$domain) = @_;	my ($plainpass,$stored,$domain,$user) = @_;
my (undef,$method,@rest) = split(/!/,$stored);	my (undef,$method,@rest) = split(/!/,$stored);
if ($method eq "bcrypt") {	if ($method eq 'bcrypt') {
my $result = &hash_passwd($domain,$plainpass,@rest);	my $result = &hash_passwd($domain,$plainpass,@rest);
if ($result ne $stored) {	if ($result ne $stored) {
return 0;	return 0;
}	}
# Upgrade to a larger number of rounds if necessary	my %domdefaults = &Apache::lonnet::get_domain_defaults($domain);
my $defaultcost;	if ($domdefaults{'intauth_check'}) {
my %domconfig =	# Upgrade to a larger number of rounds if necessary
&Apache::lonnet::get_dom('configuration',['password'],$domain);	my $defaultcost = $domdefaults{'intauth_cost'};
if (ref($domconfig{'password'}) eq 'HASH') {	if (($defaultcost eq '') \|\| ($defaultcost =~ /D/)) {
$defaultcost = $domconfig{'password'}{'cost'};	$defaultcost = 10;
}	}
if (($defaultcost eq '') \|\| ($defaultcost =~ /D/)) {	if (int($rest[0])<int($defaultcost)) {
$defaultcost = 10;	if ($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 ($domdefaults{'intauth_check'} == 2) {
	return 0;
	}
	}
	} else {
	return 1;
}	}
return 1 unless($rest[0]<$defaultcost);
}	}
return 0;	return 0;
}	}
Line 7652 sub make_passwd_file {	Line 8282 sub make_passwd_file {
&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);	&update_passwd_history($uname,$udom,$umode,$action);
} else {	} else {
$result = "pass_file_failed_error";	$result = "pass_file_failed_error";
}	}
Line 7726 sub get_usersession_config {	Line 8356 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;
	}

	sub get_usersearch_config {
	my ($dom,$name) = @_;
	my ($usersearchconf,$cached)=&Apache::lonnet::is_cached_new($name,$dom);
	if (defined($cached)) {
	return $usersearchconf;
	} else {
	my %domconfig = &Apache::lonnet::get_dom('configuration',['directorysrch'],$dom);
	&Apache::lonnet::do_cache_new($name,$dom,$domconfig{'directorysrch'},600);
	return $domconfig{'directorysrch'};
}	}
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 7918 Allow for a password to be set.	Line 8593 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 8007 for each student, defined perhaps by the	Line 8682 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 8056 IO::File	Line 8735 IO::File
Apache::File	Apache::File
POSIX	POSIX
Crypt::IDEA	Crypt::IDEA
LWP::UserAgent()
GDBM_File	GDBM_File
Authen::Krb4	Authen::Krb4
Authen::Krb5	Authen::Krb5

=head1 COREQUISITES	=head1 COREQUISITES

	none

=head1 OSNAMES	=head1 OSNAMES

linux	linux
Line 8150 or the CA's certificate in the call to l	Line 8830 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 8271 Could not rewrite the	Line 8951 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 8300 lond has been asked to exit by its clien	Line 8980 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 8384 file when sent it's USR1 signal. That p	Line 9064 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 8398 Started a new child process for <client>	Line 9078 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 8409 In child process initialization. The pe	Line 9089 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 8459 The client (<client> is the peer's name	Line 9139 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.1.489.2.25
changed lines
	Added in v.1.538