loncom/lond - diff

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Diff for /loncom/lond between versions 1.447 and 1.516

version 1.447, 2010/07/17 20:01:56	version 1.516, 2015/06/14 00:43:51
Line 15	Line 15
#	#
# LON-CAPA is distributed in the hope that it will be useful,	# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of	# but WITHOUT ANY WARRANTY; without even the implied warranty of

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

use IO::Socket;	use IO::Socket;
use IO::File;	use IO::File;
Line 52 use LONCAPA::lonlocal;	Line 54 use LONCAPA::lonlocal;
use LONCAPA::lonssl;	use LONCAPA::lonssl;
use Fcntl qw(:flock);	use Fcntl qw(:flock);
use Apache::lonnet;	use Apache::lonnet;
	use Mail::Send;

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

Line 66 my $currentdomainid;	Line 69 my $currentdomainid;
my $client;	my $client;
my $clientip; # IP address of client.	my $clientip; # IP address of client.
my $clientname; # LonCAPA name of client.	my $clientname; # LonCAPA name of client.
my $clientversion; # LonCAPA version running on client	my $clientversion; # LonCAPA version running on client.
my @clientdoms; # Array of domains on $clientip	my $clienthomedom; # LonCAPA domain of homeID for client.
	# primary library server.

my $server;	my $server;

Line 89 my %managers; # Ip -> manager names	Line 93 my %managers; # Ip -> manager names

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

	my $dist;

#	#
# The hash below is used for command dispatching, and is therefore keyed on the request keyword.	# The hash below is used for command dispatching, and is therefore keyed on the request keyword.
# Each element of the hash contains a reference to an array that contains:	# Each element of the hash contains a reference to an array that contains:
Line 124 my @passwderrors = ("ok",	Line 130 my @passwderrors = ("ok",
"pwchange_failure - lcpasswd Error filename is invalid");	"pwchange_failure - lcpasswd Error filename is invalid");


# The array below are lcuseradd error strings.:

my $lastadderror = 13;
my @adderrors = ("ok",
"User ID mismatch, lcuseradd must run as user www",
"lcuseradd Incorrect number of command line parameters must be 3",
"lcuseradd Incorrect number of stdinput lines, must be 3",
"lcuseradd Too many other simultaneous pwd changes in progress",
"lcuseradd User does not exist",
"lcuseradd Unable to make www member of users's group",
"lcuseradd Unable to su to root",
"lcuseradd Unable to set password",
"lcuseradd Username has invalid characters",
"lcuseradd Password has an invalid character",
"lcuseradd User already exists",
"lcuseradd Could not add user.",
"lcuseradd Password mismatch");


# This array are the errors from lcinstallfile:	# This array are the errors from lcinstallfile:

my @installerrors = ("ok",	my @installerrors = ("ok",
"Initial user id of client not that of www",	"Initial user id of client not that of www",
"Usage error, not enough command line arguments",	"Usage error, not enough command line arguments",
"Source file name does not exist",	"Source filename does not exist",
"Destination file name does not exist",	"Destination filename does not exist",
"Some file operation failed",	"Some file operation failed",
"Invalid table filename."	"Invalid table filename."
);	);
Line 418 sub ReadManagerTable {	Line 405 sub ReadManagerTable {

my $tablename = $perlvar{'lonTabDir'}."/managers.tab";	my $tablename = $perlvar{'lonTabDir'}."/managers.tab";
if (!open (MANAGERS, $tablename)) {	if (!open (MANAGERS, $tablename)) {
logthis('<font color="red">No manager table. Nobody can manage!!</font>');	my $hostname = &Apache::lonnet::hostname($perlvar{'lonHostID'});
return;	if (&Apache::lonnet::is_LC_dns($hostname)) {
	&logthis('<font color="red">No manager table. Nobody can manage!!</font>');
	}
	return;
}	}
while(my $host = <MANAGERS>) {	while(my $host = <MANAGERS>) {
chomp($host);	chomp($host);
Line 444 sub ReadManagerTable {	Line 434 sub ReadManagerTable {
}	}
} else {	} else {
logthis('<font color="green"> existing host'." $host</font>\n");	logthis('<font color="green"> existing host'." $host</font>\n");
$managers{&Apache::lonnet::get_host_ip($host)} = $host; # Use info from cluster tab if clumemeber	$managers{&Apache::lonnet::get_host_ip($host)} = $host; # Use info from cluster tab if cluster memeber
}	}
}	}
}	}
Line 506 sub AdjustHostContents {	Line 496 sub AdjustHostContents {
my $me = $perlvar{'lonHostID'};	my $me = $perlvar{'lonHostID'};

foreach my $line (split(/\n/,$contents)) {	foreach my $line (split(/\n/,$contents)) {
if(!(($line eq "") \|\| ($line =~ /^ \#/) \|\| ($line =~ /^ $/))) {	if(!(($line eq "") \|\| ($line =~ /^ \#/) \|\| ($line =~ /^ $/) \|\|
	($line =~ /^\s*\^/))) {
chomp($line);	chomp($line);
my ($id,$domain,$role,$name,$ip,$maxcon,$idleto,$mincon)=split(/:/,$line);	my ($id,$domain,$role,$name,$ip,$maxcon,$idleto,$mincon)=split(/:/,$line);
if ($id eq $me) {	if ($id eq $me) {
Line 594 sub InstallFile {	Line 585 sub InstallFile {
#	#
# ConfigFileFromSelector: converts a configuration file selector	# ConfigFileFromSelector: converts a configuration file selector
# into a configuration file pathname.	# into a configuration file pathname.
# It's probably no longer necessary to preserve	# Supports the following file selectors:
# special handling of hosts or domain as those	# hosts, domain, dns_hosts, dns_domain
# files have been superceded by dns_hosts, dns_domain.
# The default action is just to prepend the directory
# and append .tab
#	#
#	#
# Parameters:	# Parameters:
Line 611 sub ConfigFileFromSelector {	Line 599 sub ConfigFileFromSelector {
my $tablefile;	my $tablefile;

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

}	}
#	#
# PushFile: Called to do an administrative push of a file.	# PushFile: Called to do an administrative push of a file.
Line 637 sub ConfigFileFromSelector {	Line 621 sub ConfigFileFromSelector {
# String to send to client ("ok" or "refused" if bad file).	# String to send to client ("ok" or "refused" if bad file).
#	#
sub PushFile {	sub PushFile {
my $request = shift;	my $request = shift;
my ($command, $filename, $contents) = split(":", $request, 3);	my ($command, $filename, $contents) = split(":", $request, 3);
&Debug("PushFile");	&Debug("PushFile");

Line 645 sub PushFile {	Line 629 sub PushFile {
# supported:	# supported:
# hosts.tab ($filename eq host).	# hosts.tab ($filename eq host).
# domain.tab ($filename eq domain).	# domain.tab ($filename eq domain).
	# dns_hosts.tab ($filename eq dns_host).
	# dns_domain.tab ($filename eq dns_domain).
# Construct the destination filename or reject the request.	# Construct the destination filename or reject the request.
#	#
# lonManage is supposed to ensure this, however this session could be	# lonManage is supposed to ensure this, however this session could be
Line 665 sub PushFile {	Line 651 sub PushFile {

if($filename eq "host") {	if($filename eq "host") {
$contents = AdjustHostContents($contents);	$contents = AdjustHostContents($contents);
	} elsif ($filename eq 'dns_host' \|\| $filename eq 'dns_domain') {
	if ($contents eq '') {
	&logthis('<font color="red"> Pushfile: unable to install '
	.$tablefile." - no data received from push. </font>");
	return 'error: push had no data';
	}
	if (&Apache::lonnet::get_host_ip($clientname)) {
	my $clienthost = &Apache::lonnet::hostname($clientname);
	if ($managers{$clientip} eq $clientname) {
	my $clientprotocol = $Apache::lonnet::protocol{$clientname};
	$clientprotocol = 'http' if ($clientprotocol ne 'https');
	my $url = '/adm/'.$filename;
	$url =~ s{_}{/};
	my $ua=new LWP::UserAgent;
	$ua->timeout(60);
	my $request=new HTTP::Request('GET',"$clientprotocol://$clienthost$url");
	my $response=$ua->request($request);
	if ($response->is_error()) {
	&logthis('<font color="red"> Pushfile: unable to install '
	.$tablefile." - error attempting to pull data. </font>");
	return 'error: pull failed';
	} else {
	my $result = $response->content;
	chomp($result);
	unless ($result eq $contents) {
	&logthis('<font color="red"> Pushfile: unable to install '
	.$tablefile." - pushed data and pulled data differ. </font>");
	my $pushleng = length($contents);
	my $pullleng = length($result);
	if ($pushleng != $pullleng) {
	return "error: $pushleng vs $pullleng bytes";
	} else {
	return "error: mismatch push and pull";
	}
	}
	}
	}
	}
}	}

# Install the new file:	# Install the new file:
Line 676 sub PushFile {	Line 700 sub PushFile {
return "error:$!";	return "error:$!";
} else {	} else {
&logthis('<font color="green"> Installed new '.$tablefile	&logthis('<font color="green"> Installed new '.$tablefile
."</font>");	." - transaction by: $clientname ($clientip)</font>");
	my $adminmail = $perlvar{'lonAdmEMail'};
	my $admindom = &Apache::lonnet::host_domain($perlvar{'lonHostID'});
	if ($admindom ne '') {
	my %domconfig =
	&Apache::lonnet::get_dom('configuration',['contacts'],$admindom);
	if (ref($domconfig{'contacts'}) eq 'HASH') {
	if ($domconfig{'contacts'}{'adminemail'} ne '') {
	$adminmail = $domconfig{'contacts'}{'adminemail'};
	}
	}
	}
	if ($adminmail =~ /^[^\@]+\@[^\@]+$/) {
	my $msg = new Mail::Send;
	$msg->to($adminmail);
	$msg->subject('LON-CAPA DNS update on '.$perlvar{'lonHostID'});
	$msg->add('Content-type','text/plain; charset=UTF-8');
	if (my $fh = $msg->open()) {
	print $fh 'Update to '.$tablefile.' from Cluster Manager '.
	"$clientname ($clientip)\n";
	$fh->close;
	}
	}
}	}


# Indicate success:	# Indicate success:

return "ok";	return "ok";
Line 1072 sub pong_handler {	Line 1116 sub pong_handler {
# Implicit Inputs:	# Implicit Inputs:
# $currenthostid - Global variable that carries the name of the host	# $currenthostid - Global variable that carries the name of the host
# known as.	# known as.
# $clientname - Global variable that carries the name of the hsot we're connected to.	# $clientname - Global variable that carries the name of the host we're connected to.
# Returns:	# Returns:
# 1 - Ok to continue processing.	# 1 - Ok to continue processing.
# 0 - Program should exit.	# 0 - Program should exit.
Line 1111 sub establish_key_handler {	Line 1155 sub establish_key_handler {
# Implicit Inputs:	# Implicit Inputs:
# $currenthostid - Global variable that carries the name of the host	# $currenthostid - Global variable that carries the name of the host
# known as.	# known as.
# $clientname - Global variable that carries the name of the hsot we're connected to.	# $clientname - Global variable that carries the name of the host we're connected to.
# Returns:	# Returns:
# 1 - Ok to continue processing.	# 1 - Ok to continue processing.
# 0 - Program should exit.	# 0 - Program should exit.
Line 1120 sub establish_key_handler {	Line 1164 sub establish_key_handler {
sub load_handler {	sub load_handler {
my ($cmd, $tail, $replyfd) = @_;	my ($cmd, $tail, $replyfd) = @_;



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

Line 1148 sub load_handler {	Line 1194 sub load_handler {
# Implicit Inputs:	# Implicit Inputs:
# $currenthostid - Global variable that carries the name of the host	# $currenthostid - Global variable that carries the name of the host
# known as.	# known as.
# $clientname - Global variable that carries the name of the hsot we're connected to.	# $clientname - Global variable that carries the name of the host we're connected to.
# Returns:	# Returns:
# 1 - Ok to continue processing.	# 1 - Ok to continue processing.
# 0 - Program should exit	# 0 - Program should exit
Line 1617 sub ls3_handler {	Line 1663 sub ls3_handler {
}	}
&register_handler("ls3", \&ls3_handler, 0, 1, 0);	&register_handler("ls3", \&ls3_handler, 0, 1, 0);

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

	sub server_devalidatecache_handler {
	my ($cmd,$tail,$client) = @_;
	my $userinput = "$cmd:$tail";
	my $items = &unescape($tail);
	my @cached = split(/\&/,$items);
	foreach my $key (@cached) {
	if ($key =~ /:/) {
	my ($name,$id) = map { &unescape($_); } split(/:/,$key);
	&Apache::lonnet::devalidate_cache_new($name,$id);
	}
	}
	my $result = 'ok';
	&Reply($client,\$result,$userinput);
	return 1;
	}
	&register_handler("devalidatecache", \&server_devalidatecache_handler, 0, 1, 0);

sub server_timezone_handler {	sub server_timezone_handler {
my ($cmd,$tail,$client) = @_;	my ($cmd,$tail,$client) = @_;
my $userinput = "$cmd:$tail";	my $userinput = "$cmd:$tail";
Line 1657 sub server_loncaparev_handler {	Line 1777 sub server_loncaparev_handler {
}	}
&register_handler("serverloncaparev", \&server_loncaparev_handler, 0, 1, 0);	&register_handler("serverloncaparev", \&server_loncaparev_handler, 0, 1, 0);

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

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

# Process a reinit request. Reinit requests that either	# Process a reinit request. Reinit requests that either
# lonc or lond be reinitialized so that an updated	# lonc or lond be reinitialized so that an updated
# host.tab or domain.tab can be processed.	# host.tab or domain.tab can be processed.
Line 1778 sub authenticate_handler {	Line 1915 sub authenticate_handler {
if($pwdcorrect) {	if($pwdcorrect) {
my $canhost = 1;	my $canhost = 1;
unless ($clientcancheckhost) {	unless ($clientcancheckhost) {
unless (grep(/^\Q$udom\E$/,@clientdoms)) {	my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
	my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
	my @intdoms;
	my $internet_names = &Apache::lonnet::get_internet_names($clientname);
	if (ref($internet_names) eq 'ARRAY') {
	@intdoms = @{$internet_names};
	}
	unless ($uint_dom ne '' && grep(/^\Q$uint_dom\E$/,@intdoms)) {
my ($remote,$hosted);	my ($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 $hostedsession = &get_usersession_config($clientdoms[0],'hostedsession');	my $hostedsession = &get_usersession_config($clienthomedom,'hostedsession');
if (ref($hostedsession) eq 'HASH') {	if (ref($hostedsession) eq 'HASH') {
$hosted = $hostedsession->{'hosted'};	$hosted = $hostedsession->{'hosted'};
}	}
$canhost = &Apache::lonnet::can_host_session($udom,$currentdomainid,$clientversion,	$canhost = &Apache::lonnet::can_host_session($udom,$clientname,
	$clientversion,
$remote,$hosted);	$remote,$hosted);
}	}
}	}
Line 1950 sub add_user_handler {	Line 2095 sub add_user_handler {
."makeuser";	."makeuser";
}	}
unless ($fperror) {	unless ($fperror) {
my $result=&make_passwd_file($uname, $umode,$npass, $passfilename);	my $result=&make_passwd_file($uname,$udom,$umode,$npass, $passfilename);
&Reply($client,\$result, $userinput); #BUGBUG - could be fail	&Reply($client,\$result, $userinput); #BUGBUG - could be fail
} else {	} else {
&Failure($client, \$fperror, $userinput);	&Failure($client, \$fperror, $userinput);
Line 2011 sub change_authentication_handler {	Line 2156 sub change_authentication_handler {
my $passfilename = &password_path($udom, $uname);	my $passfilename = &password_path($udom, $uname);
if ($passfilename) { # Not allowed to create a new user!!	if ($passfilename) { # Not allowed to create a new user!!
# If just changing the unix passwd. need to arrange to run	# If just changing the unix passwd. need to arrange to run
# passwd since otherwise make_passwd_file will run	# passwd since otherwise make_passwd_file will fail as
# lcuseradd which fails if an account already exists	# creation of unix authenticated users is no longer supported
# (to prevent an unscrupulous LONCAPA admin from stealing	# except from the command line, when running make_domain_coordinator.pl
# an existing account by overwriting it as a LonCAPA account).

if(($oldauth =~/^unix/) && ($umode eq "unix")) {	if(($oldauth =~/^unix/) && ($umode eq "unix")) {
my $result = &change_unix_password($uname, $npass);	my $result = &change_unix_password($uname, $npass);
Line 2025 sub change_authentication_handler {	Line 2169 sub change_authentication_handler {
&Failure($client, \$result);	&Failure($client, \$result);
}	}
} else {	} else {
my $result=&make_passwd_file($uname, $umode,$npass,$passfilename);	my $result=&make_passwd_file($uname,$udom,$umode,$npass,$passfilename);
#	#
# If the current auth mode is internal, and the old auth mode was	# If the current auth mode is internal, and the old auth mode was
# unix, or krb*, and the user is an author for this domain,	# unix, or krb*, and the user is an author for this domain,
# re-run manage_permissions for that role in order to be able	# re-run manage_permissions for that role in order to be able
# to take ownership of the construction space back to www:www	# to take ownership of the construction space back to www:www
#	#


if( (($oldauth =~ /^unix/) && ($umode eq "internal")) \|\|
(($oldauth =~ /^internal/) && ($umode eq "unix")) ) {
if(&is_author($udom, $uname)) {
&Debug(" Need to manage author permissions...");
&manage_permissions("/$udom/_au", $udom, $uname, "$umode:");
}
}
&Reply($client, \$result, $userinput);	&Reply($client, \$result, $userinput);
}	}

Line 2134 sub update_resource_handler {	Line 2271 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;
alarm(120);	# FIXME: cannot replicate files that take more than two minutes to transfer?
	# alarm(120);
	# FIXME: this should use the LWP mechanism, not internal alarms.
	alarm(1200);
{	{
my $ua=new LWP::UserAgent;	my $ua=new LWP::UserAgent;
my $request=new HTTP::Request('GET',"$remoteurl");	my $request=new HTTP::Request('GET',"$remoteurl");
Line 2142 sub update_resource_handler {	Line 2282 sub update_resource_handler {
}	}
alarm(0);	alarm(0);
if ($response->is_error()) {	if ($response->is_error()) {
	# FIXME: we should probably clean up here instead of just whine
unlink($transname);	unlink($transname);
my $message=$response->status_line;	my $message=$response->status_line;
&logthis("LWP GET: $message for $fname ($remoteurl)");	&logthis("LWP GET: $message for $fname ($remoteurl)");
} else {	} else {
if ($remoteurl!~/\.meta$/) {	if ($remoteurl!~/\.meta$/) {
	# FIXME: isn't there an internal LWP mechanism for this?
alarm(120);	alarm(120);
{	{
my $ua=new LWP::UserAgent;	my $ua=new LWP::UserAgent;
Line 2220 sub fetch_user_file_handler {	Line 2362 sub fetch_user_file_handler {

my $destname=$udir.'/'.$ufile;	my $destname=$udir.'/'.$ufile;
my $transname=$udir.'/'.$ufile.'.in.transit';	my $transname=$udir.'/'.$ufile.'.in.transit';
my $remoteurl='http://'.$clientip.'/userfiles/'.$fname;	my $clientprotocol=$Apache::lonnet::protocol{$clientname};
	$clientprotocol = 'http' if ($clientprotocol ne 'https');
	my $clienthost = &Apache::lonnet::hostname($clientname);
	my $remoteurl=$clientprotocol.'://'.$clienthost.'/userfiles/'.$fname;
my $response;	my $response;
Debug("Remote URL : $remoteurl Transfername $transname Destname: $destname");	Debug("Remote URL : $remoteurl Transfername $transname Destname: $destname");
alarm(120);	alarm(120);
Line 2242 sub fetch_user_file_handler {	Line 2387 sub fetch_user_file_handler {
unlink($transname);	unlink($transname);
&Failure($client, "failed\n", $userinput);	&Failure($client, "failed\n", $userinput);
} else {	} else {
	if ($fname =~ /^default.+\.(page\|sequence)$/) {
	my ($major,$minor) = split(/\./,$clientversion);
	if (($major < 2) \|\| ($major == 2 && $minor < 11)) {
	my $now = time;
	&Apache::lonnet::do_cache_new('crschange',$udom.'_'.$uname,$now,600);
	my $key = &escape('internal.contentchange');
	my $what = "$key=$now";
	my $hashref = &tie_user_hash($udom,$uname,'environment',
	&GDBM_WRCREAT(),"P",$what);
	if ($hashref) {
	$hashref->{$key}=$now;
	if (!&untie_user_hash($hashref)) {
	&logthis("error: ".($!+0)." untie (GDBM) failed ".
	"when updating internal.contentchange");
	}
	}
	}
	}
&Reply($client, "ok\n", $userinput);	&Reply($client, "ok\n", $userinput);
}	}
}	}
Line 2396 sub user_has_session_handler {	Line 2559 sub user_has_session_handler {

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

&logthis("Looking for $udom $uname");
opendir(DIR,$perlvar{'lonIDsDir'});	opendir(DIR,$perlvar{'lonIDsDir'});
my $filename;	my $filename;
while ($filename=readdir(DIR)) {	while ($filename=readdir(DIR)) {
Line 2646 sub newput_user_profile_entry {	Line 2808 sub newput_user_profile_entry {
foreach my $pair (@pairs) {	foreach my $pair (@pairs) {
my ($key,$value)=split(/=/,$pair);	my ($key,$value)=split(/=/,$pair);
if (exists($hashref->{$key})) {	if (exists($hashref->{$key})) {
&Failure($client, "key_exists: ".$key."\n",$userinput);	if (!&untie_user_hash($hashref)) {
return 1;	&logthis("error: ".($!+0)." untie (GDBM) failed ".
	"while attempting newput - early out as key exists");
	}
	&Failure($client, "key_exists: ".$key."\n",$userinput);
	return 1;
}	}
}	}

Line 3049 sub get_profile_keys {	Line 3215 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 3115 sub dump_profile_database {	Line 3292 sub dump_profile_database {
# that is matched against	# that is matched against
# database keywords to do	# database keywords to do
# selective dumps.	# selective dumps.
	# range - optional range of entries
	# e.g., 10-20 would return the
	# 10th to 19th items, etc.
# $client - Channel open on the client.	# $client - Channel open on the client.
# Returns:	# Returns:
# 1 - Continue processing.	# 1 - Continue processing.
Line 3124 sub dump_profile_database {	Line 3304 sub dump_profile_database {
sub dump_with_regexp {	sub dump_with_regexp {
my ($cmd, $tail, $client) = @_;	my ($cmd, $tail, $client) = @_;

	my $res = LONCAPA::Lond::dump_with_regexp($tail, $clientversion);
my $userinput = "$cmd:$tail";
	if ($res =~ /^error:/) {
my ($udom,$uname,$namespace,$regexp,$range)=split(/:/,$tail);	Failure($client, \$res, "$cmd:$tail");
if (defined($regexp)) {
$regexp=&unescape($regexp);
} else {
$regexp='.';
}
my ($start,$end);
if (defined($range)) {
if ($range =~/^(\d+)\-(\d+)$/) {
($start,$end) = ($1,$2);
} elsif ($range =~/^(\d+)$/) {
($start,$end) = (0,$1);
} else {
undef($range);
}
}
my $hashref = &tie_user_hash($udom, $uname, $namespace,
&GDBM_READER());
if ($hashref) {
my $qresult='';
my $count=0;
while (my ($key,$value) = each(%$hashref)) {
if ($namespace eq 'roles') {
if ($key =~ m{^/($LONCAPA::match_domain)/($LONCAPA::match_community)_(cc\|co\|in\|ta\|ep\|ad\|st\|cr)}) {
my $cdom = $1;
my $cnum = $2;
if ($clientversion =~ /^\'?(\d+)\.(\d+)/) {
my $major = $1;
my $minor = $2;
next if (($major < 2) \|\| (($major == 2) && ($minor < 9)));
} else {
my $homeserver = &Apache::lonnet::homeserver($cnum,$cdom);
next unless ($currenthostid eq $homeserver);
}
}
}
if ($regexp eq '.') {
$count++;
if (defined($range) && $count >= $end) { last; }
if (defined($range) && $count < $start) { next; }
$qresult.=$key.'='.$value.'&';
} else {
my $unescapeKey = &unescape($key);
if (eval('$unescapeKey=~/$regexp/')) {
$count++;
if (defined($range) && $count >= $end) { last; }
if (defined($range) && $count < $start) { next; }
$qresult.="$key=$value&";
}
}
}
if (&untie_user_hash($hashref)) {
chop($qresult);
&Reply($client, \$qresult, $userinput);
} else {
&Failure( $client, "error: ".($!+0)." untie(GDBM) Failed ".
"while attempting dump\n", $userinput);
}
} else {	} else {
&Failure($client, "error: ".($!+0)." tie(GDBM) Failed ".	Reply($client, \$res, "$cmd:$tail");
"while attempting dump\n", $userinput);
}	}

return 1;	return 1;
Line 3204 sub dump_with_regexp {	Line 3326 sub dump_with_regexp {
# namespace - Name of the database being modified	# namespace - Name of the database being modified
# rid - Resource keyword to modify.	# rid - Resource keyword to modify.
# what - new value associated with rid.	# what - new value associated with rid.
	# laststore - (optional) version=timestamp
	# for most recent transaction for rid
	# in namespace, when cstore was called
#	#
# $client - Socket open on the client.	# $client - Socket open on the client.
#	#
Line 3212 sub dump_with_regexp {	Line 3337 sub dump_with_regexp {
# 1 (keep on processing).	# 1 (keep on processing).
# Side-Effects:	# Side-Effects:
# Writes to the client	# Writes to the client
	# Successful storage will cause either 'ok', or, if $laststore was included
	# in the tail of the request, and the version number for the last transaction
	# is larger than the version in $laststore, delay:$numtrans , where $numtrans
	# is the number of store evevnts recorded for rid in namespace since
	# lonnet::store() was called by the client.
	#
sub store_handler {	sub store_handler {
my ($cmd, $tail, $client) = @_;	my ($cmd, $tail, $client) = @_;

my $userinput = "$cmd:$tail";	my $userinput = "$cmd:$tail";
	chomp($tail);
my ($udom,$uname,$namespace,$rid,$what) =split(/:/,$tail);	my ($udom,$uname,$namespace,$rid,$what,$laststore) =split(/:/,$tail);
if ($namespace ne 'roles') {	if ($namespace ne 'roles') {

chomp($what);
my @pairs=split(/\&/,$what);	my @pairs=split(/\&/,$what);
my $hashref = &tie_user_hash($udom, $uname, $namespace,	my $hashref = &tie_user_hash($udom, $uname, $namespace,
&GDBM_WRCREAT(), "S",	&GDBM_WRCREAT(), "S",
"$rid:$what");	"$rid:$what");
if ($hashref) {	if ($hashref) {
my $now = time;	my $now = time;
my @previouskeys=split(/&/,$hashref->{"keys:$rid"});	my $numtrans;
my $key;	if ($laststore) {
	my ($previousversion,$previoustime) = split(/\=/,$laststore);
	my ($lastversion,$lasttime) = (0,0);
	$lastversion = $hashref->{"version:$rid"};
	if ($lastversion) {
	$lasttime = $hashref->{"$lastversion:$rid:timestamp"};
	}
	if (($previousversion) && ($previousversion !~ /\D/)) {
	if (($lastversion > $previousversion) && ($lasttime >= $previoustime)) {
	$numtrans = $lastversion - $previousversion;
	}
	} elsif ($lastversion) {
	$numtrans = $lastversion;
	}
	if ($numtrans) {
	$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 3241 sub store_handler {	Line 3388 sub store_handler {
$allkeys.='timestamp';	$allkeys.='timestamp';
$hashref->{"$version:keys:$rid"}=$allkeys;	$hashref->{"$version:keys:$rid"}=$allkeys;
if (&untie_user_hash($hashref)) {	if (&untie_user_hash($hashref)) {
&Reply($client, "ok\n", $userinput);	my $msg = 'ok';
	if ($numtrans) {
	$msg = 'delay:'.$numtrans;
	}
	&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 3757 sub put_course_id_hash_handler {	Line 3908 sub put_course_id_hash_handler {
# creationcontext - include courses created in specified context	# creationcontext - include courses created in specified context
#	#
# 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
	# been set.
#	#
# $client - The socket open on the client.	# $client - The socket open on the client.
# Returns:	# Returns:
Line 3766 sub put_course_id_hash_handler {	Line 3919 sub put_course_id_hash_handler {
# a reply is written to $client.	# a reply is written to $client.
sub dump_course_id_handler {	sub dump_course_id_handler {
my ($cmd, $tail, $client) = @_;	my ($cmd, $tail, $client) = @_;

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

	return 1;

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

my ($udom,$since,$description,$instcodefilter,$ownerfilter,$coursefilter,	my ($udom,$since,$description,$instcodefilter,$ownerfilter,$coursefilter,
$typefilter,$regexp_ok,$rtn_as_hash,$selfenrollonly,$catfilter,$showhidden,	$typefilter,$regexp_ok,$rtn_as_hash,$selfenrollonly,$catfilter,$showhidden,
$caller,$cloner,$cc_clone_list,$cloneonly,$createdbefore,$createdafter,	$caller,$cloner,$cc_clone_list,$cloneonly,$createdbefore,$createdafter,
$creationcontext,$domcloner) =split(/:/,$tail);	$creationcontext,$domcloner,$hasuniquecode) =split(/:/,$tail);
my $now = time;	my $now = time;
my ($cloneruname,$clonerudom,%cc_clone);	my ($cloneruname,$clonerudom,%cc_clone);
if (defined($description)) {	if (defined($description)) {
Line 3844 sub dump_course_id_handler {	Line 4008 sub dump_course_id_handler {
} else {	} else {
$creationcontext = '.';	$creationcontext = '.';
}	}
	unless ($hasuniquecode) {
	$hasuniquecode = '.';
	}
my $unpack = 1;	my $unpack = 1;
if ($description eq '.' && $instcodefilter eq '.' && $coursefilter eq '.' &&	if ($description eq '.' && $instcodefilter eq '.' && $ownerfilter eq '.' &&
$typefilter eq '.') {	$typefilter eq '.') {
$unpack = 0;	$unpack = 0;
}	}
Line 3932 sub dump_course_id_handler {	Line 4099 sub dump_course_id_handler {
$selfenroll_end = $items->{'selfenroll_end_date'};	$selfenroll_end = $items->{'selfenroll_end_date'};
$created = $items->{'created'};	$created = $items->{'created'};
$context = $items->{'context'};	$context = $items->{'context'};
	if ($hasuniquecode ne '.') {
	next unless ($items->{'uniquecode'});
	}
if ($selfenrollonly) {	if ($selfenrollonly) {
next if (!$selfenroll_types);	next if (!$selfenroll_types);
if (($selfenroll_end > 0) && ($selfenroll_end <= $now)) {	if (($selfenroll_end > 0) && ($selfenroll_end <= $now)) {
Line 4229 sub put_domain_handler {	Line 4399 sub put_domain_handler {
sub get_domain_handler {	sub get_domain_handler {
my ($cmd, $tail, $client) = @_;	my ($cmd, $tail, $client) = @_;


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

my ($udom,$namespace,$what)=split(/:/,$tail,3);	my ($udom,$namespace,$what)=split(/:/,$tail,3);
Line 4353 sub get_id_handler {	Line 4524 sub get_id_handler {
}	}
&register_handler("idget", \&get_id_handler, 0, 1, 0);	&register_handler("idget", \&get_id_handler, 0, 1, 0);

	# Deletes one or more ids in a domain's id database.
	#
	# Parameters:
	# $cmd - Command keyword (iddel).
	# $tail - Command tail. In this case a colon
	# separated list containing:
	# The domain for which we are deleting the id(s).
	# &-separated list of id(s) to delete.
	# $client - File open on client socket.
	# Returns:
	# 1 - Continue processing
	# 0 - Exit server.
	#
	#

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

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

	my ($udom,$what)=split(/:/,$tail);
	chomp($what);
	my $hashref = &tie_domain_hash($udom, "ids", &GDBM_WRCREAT(),
	"D", $what);
	if ($hashref) {
	my @keys=split(/\&/,$what);
	foreach my $key (@keys) {
	delete($hashref->{$key});
	}
	if (&untie_user_hash($hashref)) {
	&Reply($client, "ok\n", $userinput);
	} else {
	&Failure($client, "error: ".($!+0)." untie(GDBM) Failed ".
	"while attempting iddel\n", $userinput);
	}
	} else {
	&Failure( $client, "error: ".($!+0)." tie(GDBM) Failed ".
	"while attempting iddel\n", $userinput);
	}
	return 1;
	}
	&register_handler("iddel", \&del_id_handler, 0, 1, 0);

#	#
# Puts broadcast e-mail sent by Domain Coordinator in nohist_dcmail database	# Puts broadcast e-mail sent by Domain Coordinator in nohist_dcmail database
#	#
Line 4373 sub get_id_handler {	Line 4587 sub get_id_handler {
sub put_dcmail_handler {	sub put_dcmail_handler {
my ($cmd,$tail,$client) = @_;	my ($cmd,$tail,$client) = @_;
my $userinput = "$cmd:$tail";	my $userinput = "$cmd:$tail";


my ($udom,$what)=split(/:/,$tail);	my ($udom,$what)=split(/:/,$tail);
chomp($what);	chomp($what);
my $hashref = &tie_domain_hash($udom, "nohist_dcmail", &GDBM_WRCREAT());	my $hashref = &tie_domain_hash($udom, "nohist_dcmail", &GDBM_WRCREAT());
Line 4637 sub tmp_put_handler {	Line 4852 sub tmp_put_handler {
}	}
my ($id,$store);	my ($id,$store);
$tmpsnum++;	$tmpsnum++;
if ($context eq 'resetpw') {	if (($context eq 'resetpw') \|\| ($context eq 'createaccount')) {
$id = &md5_hex(&md5_hex(time.{}.rand().$$));	$id = &md5_hex(&md5_hex(time.{}.rand().$$));
} else {	} else {
$id = $$.'_'.$clientip.'_'.$tmpsnum;	$id = $$.'_'.$clientip.'_'.$tmpsnum;
Line 4900 sub validate_instcode_handler {	Line 5115 sub validate_instcode_handler {
my ($dom,$instcode,$owner) = split(/:/, $tail);	my ($dom,$instcode,$owner) = split(/:/, $tail);
$instcode = &unescape($instcode);	$instcode = &unescape($instcode);
$owner = &unescape($owner);	$owner = &unescape($owner);
my ($outcome,$description) =	my ($outcome,$description,$credits) =
&localenroll::validate_instcode($dom,$instcode,$owner);	&localenroll::validate_instcode($dom,$instcode,$owner);
my $result = &escape($outcome).'&'.&escape($description);	my $result = &escape($outcome).'&'.&escape($description).'&'.
	&escape($credits);
&Reply($client, \$result, $userinput);	&Reply($client, \$result, $userinput);

return 1;	return 1;
Line 4955 sub get_sections_handler {	Line 5171 sub get_sections_handler {
sub validate_course_owner_handler {	sub validate_course_owner_handler {
my ($cmd, $tail, $client) = @_;	my ($cmd, $tail, $client) = @_;
my $userinput = "$cmd:$tail";	my $userinput = "$cmd:$tail";
my ($inst_course_id, $owner, $cdom) = split(/:/, $tail);	my ($inst_course_id, $owner, $cdom, $coowners) = split(/:/, $tail);

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


Line 5117 sub crsreq_checks_handler {	Line 5334 sub crsreq_checks_handler {
my $userinput = "$cmd:$tail";	my $userinput = "$cmd:$tail";
my $dom = $tail;	my $dom = $tail;
my $result;	my $result;
my @reqtypes = ('official','unofficial','community');	my @reqtypes = ('official','unofficial','community','textbook');
eval {	eval {
local($SIG{__DIE__})='DEFAULT';	local($SIG{__DIE__})='DEFAULT';
my %validations;	my %validations;
Line 5144 sub crsreq_checks_handler {	Line 5361 sub crsreq_checks_handler {
sub validate_crsreq_handler {	sub validate_crsreq_handler {
my ($cmd, $tail, $client) = @_;	my ($cmd, $tail, $client) = @_;
my $userinput = "$cmd:$tail";	my $userinput = "$cmd:$tail";
my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist) = split(/:/, $tail);	my ($dom,$owner,$crstype,$inststatuslist,$instcode,$instseclist,$customdata) = split(/:/, $tail);
$instcode = &unescape($instcode);	$instcode = &unescape($instcode);
$owner = &unescape($owner);	$owner = &unescape($owner);
$crstype = &unescape($crstype);	$crstype = &unescape($crstype);
$inststatuslist = &unescape($inststatuslist);	$inststatuslist = &unescape($inststatuslist);
$instcode = &unescape($instcode);	$instcode = &unescape($instcode);
$instseclist = &unescape($instseclist);	$instseclist = &unescape($instseclist);
	my $custominfo = &Apache::lonnet::thaw_unescape($customdata);
my $outcome;	my $outcome;
eval {	eval {
local($SIG{__DIE__})='DEFAULT';	local($SIG{__DIE__})='DEFAULT';
$outcome = &localenroll::validate_crsreq($dom,$owner,$crstype,	$outcome = &localenroll::validate_crsreq($dom,$owner,$crstype,
$inststatuslist,$instcode,	$inststatuslist,$instcode,
$instseclist);	$instseclist,$custominfo);
};	};
if (!$@) {	if (!$@) {
&Reply($client, \$outcome, $userinput);	&Reply($client, \$outcome, $userinput);
Line 5167 sub validate_crsreq_handler {	Line 5385 sub validate_crsreq_handler {
}	}
&register_handler("autocrsreqvalidation", \&validate_crsreq_handler, 0, 1, 0);	&register_handler("autocrsreqvalidation", \&validate_crsreq_handler, 0, 1, 0);

	sub crsreq_update_handler {
	my ($cmd, $tail, $client) = @_;
	my $userinput = "$cmd:$tail";
	my ($cdom,$cnum,$crstype,$action,$ownername,$ownerdomain,$fullname,$title,$code,
	$accessstart,$accessend,$infohashref) =
	split(/:/, $tail);
	$crstype = &unescape($crstype);
	$action = &unescape($action);
	$ownername = &unescape($ownername);
	$ownerdomain = &unescape($ownerdomain);
	$fullname = &unescape($fullname);
	$title = &unescape($title);
	$code = &unescape($code);
	$accessstart = &unescape($accessstart);
	$accessend = &unescape($accessend);
	my $incoming = &Apache::lonnet::thaw_unescape($infohashref);
	my ($result,$outcome);
	eval {
	local($SIG{__DIE__})='DEFAULT';
	my %rtnhash;
	$outcome = &localenroll::crsreq_updates($cdom,$cnum,$crstype,$action,
	$ownername,$ownerdomain,$fullname,
	$title,$code,$accessstart,$accessend,
	$incoming,\%rtnhash);
	if ($outcome eq 'ok') {
	my @posskeys = qw(createdweb createdmsg createdcustomized createdactions queuedweb queuedmsg formitems reviewweb validationjs onload javascript);
	foreach my $key (keys(%rtnhash)) {
	if (grep(/^\Q$key\E/,@posskeys)) {
	$result .= &escape($key).'='.&Apache::lonnet::freeze_escape($rtnhash{$key}).'&';
	}
	}
	$result =~ s/\&$//;
	}
	};
	if (!$@) {
	if ($outcome eq 'ok') {
	&Reply($client, \$result, $userinput);
	} else {
	&Reply($client, "format_error\n", $userinput);
	}
	} else {
	&Failure($client,"unknown_cmd\n",$userinput);
	}
	return 1;
	}
	&register_handler("autocrsrequpdate", \&crsreq_update_handler, 0, 1, 0);

#	#
# Read and retrieve institutional code format (for support form).	# Read and retrieve institutional code format (for support form).
# Formal Parameters:	# Formal Parameters:
Line 5874 sub lcpasswdstrerror {	Line 6139 sub lcpasswdstrerror {
}	}
}	}

#
# Convert an error return code from lcuseradd to a string value:
#
sub lcuseraddstrerror {
my $ErrorCode = shift;
if(($ErrorCode < 0) \|\| ($ErrorCode > $lastadderror)) {
return "lcuseradd - Unrecognized error code: ".$ErrorCode;
} else {
return $adderrors[$ErrorCode];
}
}

# grabs exception and records it to log before exiting	# grabs exception and records it to log before exiting
sub catchexception {	sub catchexception {
my ($error)=@_;	my ($error)=@_;
Line 5946 if (-e $pidfile) {	Line 6199 if (-e $pidfile) {
$server = IO::Socket::INET->new(LocalPort => $perlvar{'londPort'},	$server = IO::Socket::INET->new(LocalPort => $perlvar{'londPort'},
Type => SOCK_STREAM,	Type => SOCK_STREAM,
Proto => 'tcp',	Proto => 'tcp',
Reuse => 1,	ReuseAddr => 1,
Listen => 10 )	Listen => 10 )
or die "making socket: $@\n";	or die "making socket: $@\n";

Line 6009 sub HUPSMAN { # sig	Line 6262 sub HUPSMAN { # sig
# a setuid perl script that can be root for us to do this job.	# a setuid perl script that can be root for us to do this job.
#	#
sub ReloadApache {	sub ReloadApache {
my $execdir = $perlvar{'lonDaemons'};	# --------------------------- Handle case of another apachereload process (locking)
my $script = $execdir."/apachereload";	if (&LONCAPA::try_to_lock('/tmp/lock_apachereload')) {
system($script);	my $execdir = $perlvar{'lonDaemons'};
	my $script = $execdir."/apachereload";
	system($script);
	unlink('/tmp/lock_apachereload'); # Remove the lock file.
	}
}	}

#	#
Line 6122 sub Debug {	Line 6379 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 ($$reply must not contain any \n in this case).
	#If $reply is a string the caller has to ensure this.
sub Reply {	sub Reply {
my ($fd, $reply, $request) = @_;	my ($fd, $reply, $request) = @_;
if (ref($reply)) {	if (ref($reply)) {
Line 6184 sub logstatus {	Line 6444 sub logstatus {
sub initnewstatus {	sub initnewstatus {
my $docdir=$perlvar{'lonDocRoot'};	my $docdir=$perlvar{'lonDocRoot'};
my $fh=IO::File->new(">$docdir/lon-status/londstatus.txt");	my $fh=IO::File->new(">$docdir/lon-status/londstatus.txt");
my $now=time;	my $now=time();
my $local=localtime($now);	my $local=localtime($now);
print $fh "LOND status $local - parent $$\n\n";	print $fh "LOND status $local - parent $$\n\n";
opendir(DIR,"$docdir/lon-status/londchld");	opendir(DIR,"$docdir/lon-status/londchld");
Line 6275 $SIG{USR2} = \&UpdateHosts;	Line 6535 $SIG{USR2} = \&UpdateHosts;
&Apache::lonnet::load_hosts_tab();	&Apache::lonnet::load_hosts_tab();
my %iphost = &Apache::lonnet::get_iphost(1);	my %iphost = &Apache::lonnet::get_iphost(1);

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

	my $arch = `uname -i`;
	chomp($arch);
	if ($arch eq 'unknown') {
	$arch = `uname -m`;
	chomp($arch);
	}

# --------------------------------------------------------------	# --------------------------------------------------------------
# Accept connections. When a connection comes in, it is validated	# Accept connections. When a connection comes in, it is validated
Line 6334 sub make_new_child {	Line 6601 sub make_new_child {
or die "Can't unblock SIGINT for fork: $!\n";	or die "Can't unblock SIGINT for fork: $!\n";
$children{$pid} = $clientip;	$children{$pid} = $clientip;
&status('Started child '.$pid);	&status('Started child '.$pid);
	close($client);
return;	return;
} else {	} else {
# Child can not return from this subroutine.	# Child can not return from this subroutine.
Line 6342 sub make_new_child {	Line 6610 sub make_new_child {
#don't get intercepted	#don't get intercepted
$SIG{USR1}= \&logstatus;	$SIG{USR1}= \&logstatus;
$SIG{ALRM}= \&timeout;	$SIG{ALRM}= \&timeout;
	#
	# Block sigpipe as it gets thrownon socket disconnect and we want to
	# deal with that as a read faiure instead.
	#
	my $blockset = POSIX::SigSet->new(SIGPIPE);
	sigprocmask(SIG_BLOCK, $blockset);

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

Line 6352 sub make_new_child {	Line 6627 sub make_new_child {
# my $tmpsnum=0; # Now global	# my $tmpsnum=0; # Now global
#---------------------------------------------------- kerberos 5 initialization	#---------------------------------------------------- kerberos 5 initialization
&Authen::Krb5::init_context();	&Authen::Krb5::init_context();
unless (($dist eq 'fedora5') \|\| ($dist eq 'fedora4') \|\|
($dist eq 'fedora6') \|\| ($dist eq 'suse9.3')) {	my $no_ets;
	if ($dist =~ /^(?:centos\|rhes\|scientific)(\d+)$/) {
	if ($1 >= 7) {
	$no_ets = 1;
	}
	} elsif ($dist =~ /^suse(\d+\.\d+)$/) {
	if (($1 eq '9.3') \|\| ($1 >= 12.2)) {
	$no_ets = 1;
	}
	} elsif ($dist =~ /^sles(\d+)$/) {
	if ($1 > 11) {
	$no_ets = 1;
	}
	} elsif ($dist =~ /^fedora(\d+)$/) {
	if ($1 < 7) {
	$no_ets = 1;
	}
	}
	unless ($no_ets) {
&Authen::Krb5::init_ets();	&Authen::Krb5::init_ets();
}	}

Line 6399 sub make_new_child {	Line 6692 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
	# version when initiating the connection. For LON-CAPA 2.8 and older,
	# the version is retrieved from the global %loncaparevs in lonnet.pm.
	# $clientversion contains path to keyfile if $inittype eq 'local'
	# it's overridden below in this case
	$clientversion \|\|= $Apache::lonnet::loncaparevs{$clientname};

# If the connection type is ssl, but I didn't get my	# If the connection type is ssl, but I didn't get my
# certificate files yet, then I'll drop back to	# certificate files yet, then I'll drop back to
Line 6490 sub make_new_child {	Line 6789 sub make_new_child {
# ------------------------------------------------------------ Process requests	# ------------------------------------------------------------ Process requests
my $keep_going = 1;	my $keep_going = 1;
my $user_input;	my $user_input;
@clientdoms = ();	my $clienthost = &Apache::lonnet::hostname($clientname);
if (ref($iphost{$clientip}) eq 'ARRAY') {	my $clientserverhomeID = &Apache::lonnet::get_server_homeID($clienthost);
foreach my $id (@{$iphost{$clientip}}) {	$clienthomedom = &Apache::lonnet::host_domain($clientserverhomeID);
my $clientdom = &Apache::lonnet::host_domain($id);
unless (grep(/^\Q$clientdom\E/,@clientdoms)) {
push(@clientdoms,$clientdom);
}
}
}
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 6548 sub is_author {	Line 6841 sub is_author {

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

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

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

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

return defined($value);	return defined($value);
}	}
#	#
# Checks to see if the input roleput request was to set	# Checks to see if the input roleput request was to set
# an author role. If so, invokes the lchtmldir script to set	# an author role. If so, creates construction space
# up a correct public_html
# Parameters:	# Parameters:
# request - The request sent to the rolesput subchunk.	# request - The request sent to the rolesput subchunk.
# We're looking for /domain/_au	# We're looking for /domain/_au
Line 6573 sub is_author {	Line 6873 sub is_author {
#	#
sub manage_permissions {	sub manage_permissions {
my ($request, $domain, $user, $authtype) = @_;	my ($request, $domain, $user, $authtype) = @_;

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

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

Line 7071 sub subscribe {	Line 7370 sub subscribe {
# the metadata	# the metadata
unless ($fname=~/\.meta$/) { &unsub("$fname.meta",$clientip); }	unless ($fname=~/\.meta$/) { &unsub("$fname.meta",$clientip); }
$fname=~s/\/home\/httpd\/html\/res/raw/;	$fname=~s/\/home\/httpd\/html\/res/raw/;
$fname="http://".&Apache::lonnet::hostname($perlvar{'lonHostID'})."/".$fname;	my $protocol = $Apache::lonnet::protocol{$perlvar{'lonHostID'}};
	$protocol = 'http' if ($protocol ne 'https');
	$fname=$protocol.'://'.&Apache::lonnet::hostname($perlvar{'lonHostID'})."/".$fname;
$result="$fname\n";	$result="$fname\n";
}	}
} else {	} else {
Line 7113 sub change_unix_password {	Line 7414 sub change_unix_password {


sub make_passwd_file {	sub make_passwd_file {
my ($uname, $umode,$npass,$passfilename)=@_;	my ($uname,$udom,$umode,$npass,$passfilename)=@_;
my $result="ok";	my $result="ok";
if ($umode eq 'krb4' or $umode eq 'krb5') {	if ($umode eq 'krb4' or $umode eq 'krb5') {
{	{
Line 7147 sub make_passwd_file {	Line 7448 sub make_passwd_file {
}	}
}	}
} elsif ($umode eq 'unix') {	} elsif ($umode eq 'unix') {
{	&logthis(">>>Attempt to create unix account blocked -- unix auth not available for new users.");
#	$result="no_new_unix_accounts";
# Don't allow the creation of privileged accounts!!! that would
# be real bad!!!
#
my $uid = getpwnam($uname);
if((defined $uid) && ($uid == 0)) {
&logthis(">>>Attempted to create privilged account blocked");
return "no_priv_account_error\n";
}

my $execpath ="$perlvar{'lonDaemons'}/"."lcuseradd";

my $lc_error_file = $execdir."/tmp/lcuseradd".$$.".status";
{
&Debug("Executing external: ".$execpath);
&Debug("user = ".$uname.", Password =". $npass);
my $se = IO::File->new("\|$execpath > $perlvar{'lonDaemons'}/logs/lcuseradd.log");
print $se "$uname\n";
print $se "$npass\n";
print $se "$npass\n";
print $se "$lc_error_file\n"; # Status -> unique file.
}
if (-r $lc_error_file) {
&Debug("Opening error file: $lc_error_file");
my $error = IO::File->new("< $lc_error_file");
my $useraddok = <$error>;
$error->close;
unlink($lc_error_file);

chomp $useraddok;

if($useraddok > 0) {
my $error_text = &lcuseraddstrerror($useraddok);
&logthis("Failed lcuseradd: $error_text");
$result = "lcuseradd_failed:$error_text";
} else {
my $pf = IO::File->new(">$passfilename");
if($pf) {
print $pf "unix:\n";
} else {
$result = "pass_file_failed_error";
}
}
} else {
&Debug("Could not locate lcuseradd error: $lc_error_file");
$result="bug_lcuseradd_no_output_file";
}
}
} elsif ($umode eq 'none') {	} elsif ($umode eq 'none') {
{	{
my $pf = IO::File->new("> $passfilename");	my $pf = IO::File->new("> $passfilename");
Line 7259 sub get_usersession_config {	Line 7513 sub get_usersession_config {
return;	return;
}	}




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

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

=head1 NAME	=head1 NAME
Line 7466 Place in B<logs/lond.log>	Line 7727 Place in B<logs/lond.log>

stores hash in namespace	stores hash in namespace

=item rolesputy	=item rolesput

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

Line 7583 Authen::Krb5	Line 7844 Authen::Krb5

=head1 COREQUISITES	=head1 COREQUISITES

	none

=head1 OSNAMES	=head1 OSNAMES

linux	linux
Line 7670 or the CA's certificate in the call to l	Line 7933 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 7791 Could not rewrite the	Line 8054 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 7820 lond has been asked to exit by its clien	Line 8083 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 7904 file when sent it's USR1 signal. That p	Line 8167 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 7918 Started a new child process for <client>	Line 8181 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 7929 In child process initialization. The pe	Line 8192 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 7979 The client (<client> is the peer's name	Line 8242 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.1.447
changed lines
	Added in v.1.516