version 1.1384, 2018/09/20 14:17:11
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version 1.1390, 2018/11/25 02:27:04
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Line 73 package Apache::lonnet;
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Line 73 package Apache::lonnet;
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use strict; |
use strict; |
use HTTP::Date; |
use HTTP::Date; |
use Image::Magick; |
use Image::Magick; |
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use CGI::Cookie; |
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use Encode; |
use Encode; |
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Line 237 sub get_servercerts_info {
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Line 237 sub get_servercerts_info {
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} |
} |
return if ($hostname eq ''); |
return if ($hostname eq ''); |
my ($rep,$uselocal); |
my ($rep,$uselocal); |
if (grep { $_ eq $lonhost } ¤t_machine_ids()) { |
if ($context eq 'install') { |
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$uselocal = 1; |
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} elsif (grep { $_ eq $lonhost } ¤t_machine_ids()) { |
$uselocal = 1; |
$uselocal = 1; |
} |
} |
if (($context ne 'cgi') && ($uselocal)) { |
if (($context ne 'cgi') && ($context ne 'install') && ($uselocal)) { |
my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0]; |
my $distro = (split(/\:/,&get_server_distarch($lonhost)))[0]; |
if ($distro eq '') { |
if ($distro eq '') { |
$uselocal = 0; |
$uselocal = 0; |
Line 898 sub userload {
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Line 900 sub userload {
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while ($filename=readdir(LONIDS)) { |
while ($filename=readdir(LONIDS)) { |
next if ($filename eq '.' || $filename eq '..'); |
next if ($filename eq '.' || $filename eq '..'); |
next if ($filename =~ /publicuser_\d+\.id/); |
next if ($filename =~ /publicuser_\d+\.id/); |
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next if ($filename =~ /^[a-f0-9]+_linked\.id$/); |
my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9]; |
my ($mtime)=(stat($perlvar{'lonIDsDir'}.'/'.$filename))[9]; |
if ($curtime-$mtime < 1800) { $numusers++; } |
if ($curtime-$mtime < 1800) { $numusers++; } |
} |
} |
Line 1026 sub find_existing_session {
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Line 1029 sub find_existing_session {
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return; |
return; |
} |
} |
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# check if user's browser sent load balancer cookie and server still has session |
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# and is not overloaded. |
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sub check_for_balancer_cookie { |
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my ($r,$update_mtime) = @_; |
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my ($otherserver,$cookie); |
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my %cookies=CGI::Cookie->parse($r->header_in('Cookie')); |
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if (exists($cookies{'balanceID'})) { |
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my $balid = $cookies{'balanceID'}; |
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$cookie=&LONCAPA::clean_handle($balid->value); |
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my $balancedir=$r->dir_config('lonBalanceDir'); |
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if ((-d $balancedir) && (-e "$balancedir/$cookie.id")) { |
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if ($cookie =~ /^($match_domain)_($match_username)_[a-f0-9]+$/) { |
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my ($possudom,$possuname) = ($1,$2); |
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my $has_session = 0; |
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if ((&domain($possudom) ne '') && |
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(&homeserver($possuname,$possudom) ne 'no_host')) { |
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my $try_server; |
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my $opened = open(my $idf,'+<',"$balancedir/$cookie.id"); |
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if ($opened) { |
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flock($idf,LOCK_SH); |
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while (my $line = <$idf>) { |
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chomp($line); |
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if (&hostname($line) ne '') { |
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$try_server = $line; |
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last; |
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} |
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} |
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close($idf); |
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if (($try_server) && |
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(&has_user_session($try_server,$possudom,$possuname))) { |
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my $lowest_load = 30000; |
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($otherserver,$lowest_load) = |
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&compare_server_load($try_server,undef,$lowest_load); |
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if ($otherserver ne '' && $lowest_load < 100) { |
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$has_session = 1; |
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} else { |
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undef($otherserver); |
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} |
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} |
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} |
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} |
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if ($has_session) { |
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if ($update_mtime) { |
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my $atime = my $mtime = time; |
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utime($atime,$mtime,"$balancedir/$cookie.id"); |
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} |
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} else { |
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unlink("$balancedir/$cookie.id"); |
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} |
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} |
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} |
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} |
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return ($otherserver,$cookie); |
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} |
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sub delbalcookie { |
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my ($cookie,$balancer) =@_; |
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if ($cookie =~ /^($match_domain)\_($match_username)\_[a-f0-9]{32}$/) { |
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my ($udom,$uname) = ($1,$2); |
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my $uprimary_id = &domain($udom,'primary'); |
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my $uintdom = &internet_dom($uprimary_id); |
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my $intdom = &internet_dom($balancer); |
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my $serverhomedom = &host_domain($balancer); |
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if (($uintdom ne '') && ($uintdom eq $intdom)) { |
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return &reply("delbalcookie:$cookie",$balancer); |
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} |
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} |
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} |
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# -------------------------------- ask if server already has a session for user |
# -------------------------------- ask if server already has a session for user |
sub has_user_session { |
sub has_user_session { |
my ($lonid,$udom,$uname) = @_; |
my ($lonid,$udom,$uname) = @_; |
Line 1061 sub choose_server {
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Line 1133 sub choose_server {
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if (ref($balancers) eq 'HASH') { |
if (ref($balancers) eq 'HASH') { |
next if (exists($balancers->{$lonhost})); |
next if (exists($balancers->{$lonhost})); |
} |
} |
} |
} |
my $loginvia; |
my $loginvia; |
if ($checkloginvia) { |
if ($checkloginvia) { |
$loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost}; |
$loginvia = $domconfhash{$udom.'.login.loginvia_'.$lonhost}; |
Line 1363 sub get_lonbalancer_config {
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Line 1435 sub get_lonbalancer_config {
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sub check_loadbalancing { |
sub check_loadbalancing { |
my ($uname,$udom,$caller) = @_; |
my ($uname,$udom,$caller) = @_; |
my ($is_balancer,$currtargets,$currrules,$dom_in_use,$homeintdom, |
my ($is_balancer,$currtargets,$currrules,$dom_in_use,$homeintdom, |
$rule_in_effect,$offloadto,$otherserver); |
$rule_in_effect,$offloadto,$otherserver,$setcookie); |
my $lonhost = $perlvar{'lonHostID'}; |
my $lonhost = $perlvar{'lonHostID'}; |
my @hosts = ¤t_machine_ids(); |
my @hosts = ¤t_machine_ids(); |
my $uprimary_id = &Apache::lonnet::domain($udom,'primary'); |
my $uprimary_id = &Apache::lonnet::domain($udom,'primary'); |
Line 1390 sub check_loadbalancing {
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Line 1462 sub check_loadbalancing {
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} |
} |
} |
} |
if (ref($result) eq 'HASH') { |
if (ref($result) eq 'HASH') { |
($is_balancer,$currtargets,$currrules) = |
($is_balancer,$currtargets,$currrules,$setcookie) = |
&check_balancer_result($result,@hosts); |
&check_balancer_result($result,@hosts); |
if ($is_balancer) { |
if ($is_balancer) { |
if (ref($currrules) eq 'HASH') { |
if (ref($currrules) eq 'HASH') { |
Line 1451 sub check_loadbalancing {
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Line 1523 sub check_loadbalancing {
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} |
} |
} |
} |
if (ref($result) eq 'HASH') { |
if (ref($result) eq 'HASH') { |
($is_balancer,$currtargets,$currrules) = |
($is_balancer,$currtargets,$currrules,$setcookie) = |
&check_balancer_result($result,@hosts); |
&check_balancer_result($result,@hosts); |
if ($is_balancer) { |
if ($is_balancer) { |
if (ref($currrules) eq 'HASH') { |
if (ref($currrules) eq 'HASH') { |
Line 1517 sub check_loadbalancing {
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Line 1589 sub check_loadbalancing {
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$is_balancer = 0; |
$is_balancer = 0; |
if ($uname ne '' && $udom ne '') { |
if ($uname ne '' && $udom ne '') { |
if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) { |
if (($env{'user.name'} eq $uname) && ($env{'user.domain'} eq $udom)) { |
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&appenv({'user.loadbalexempt' => $lonhost, |
&appenv({'user.loadbalexempt' => $lonhost, |
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'user.loadbalcheck.time' => time}); |
'user.loadbalcheck.time' => time}); |
} |
} |
} |
} |
} |
} |
} |
} |
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unless ($homeintdom) { |
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undef($setcookie); |
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} |
} |
} |
return ($is_balancer,$otherserver); |
return ($is_balancer,$otherserver,$setcookie); |
} |
} |
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sub check_balancer_result { |
sub check_balancer_result { |
my ($result,@hosts) = @_; |
my ($result,@hosts) = @_; |
my ($is_balancer,$currtargets,$currrules); |
my ($is_balancer,$currtargets,$currrules,$setcookie); |
if (ref($result) eq 'HASH') { |
if (ref($result) eq 'HASH') { |
if ($result->{'lonhost'} ne '') { |
if ($result->{'lonhost'} ne '') { |
my $currbalancer = $result->{'lonhost'}; |
my $currbalancer = $result->{'lonhost'}; |
Line 1546 sub check_balancer_result {
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Line 1620 sub check_balancer_result {
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$is_balancer = 1; |
$is_balancer = 1; |
$currrules = $result->{$key}{'rules'}; |
$currrules = $result->{$key}{'rules'}; |
$currtargets = $result->{$key}{'targets'}; |
$currtargets = $result->{$key}{'targets'}; |
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$setcookie = $result->{$key}{'cookie'}; |
last; |
last; |
} |
} |
} |
} |
} |
} |
} |
} |
return ($is_balancer,$currtargets,$currrules); |
return ($is_balancer,$currtargets,$currrules,$setcookie); |
} |
} |
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sub get_loadbalancer_targets { |
sub get_loadbalancer_targets { |
Line 3197 sub ssi {
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Line 3272 sub ssi {
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$request->header(Cookie => $ENV{'HTTP_COOKIE'}); |
$request->header(Cookie => $ENV{'HTTP_COOKIE'}); |
my $lonhost = $perlvar{'lonHostID'}; |
my $lonhost = $perlvar{'lonHostID'}; |
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my $islocal; |
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if (($env{'request.course.id'}) && |
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($form{'grade_courseid'} eq $env{'request.course.id'}) && |
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($form{'grade_username'} ne '') && ($form{'grade_domain'} ne '') && |
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($form{'grade_symb'} ne '') && |
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(&Apache::lonnet::allowed('mgr',$env{'request.course.id'}. |
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($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) { |
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$islocal = 1; |
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} |
my $response= &LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar, |
my $response= &LONCAPA::LWPReq::makerequest($lonhost,$request,'',\%perlvar, |
'','','',1); |
'','','',$islocal); |
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if (wantarray) { |
if (wantarray) { |
return ($response->content, $response); |
return ($response->content, $response); |
Line 5232 sub set_first_access {
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Line 5316 sub set_first_access {
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} |
} |
$cachedkey=''; |
$cachedkey=''; |
my $firstaccess=&get_first_access($type,$symb,$map); |
my $firstaccess=&get_first_access($type,$symb,$map); |
if (!$firstaccess) { |
if ($firstaccess) { |
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&logthis("First access time already set ($firstaccess) when attempting ". |
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"to set new value (type: $type, extent: $res) for $uname:$udom ". |
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"in $courseid"); |
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return 'already_set'; |
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} else { |
my $start = time; |
my $start = time; |
my $putres = &put('firstaccesstimes',{"$courseid\0$res"=>$start}, |
my $putres = &put('firstaccesstimes',{"$courseid\0$res"=>$start}, |
$udom,$uname); |
$udom,$uname); |
Line 5248 sub set_first_access {
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Line 5337 sub set_first_access {
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if (($cachedtime) && (abs($start-$cachedtime) < 5)) { |
if (($cachedtime) && (abs($start-$cachedtime) < 5)) { |
$cachedtimes{"$courseid\0$res"} = $start; |
$cachedtimes{"$courseid\0$res"} = $start; |
} |
} |
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} elsif ($putres ne 'refused') { |
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&logthis("Result: $putres when attempting to set first access time ". |
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"(type: $type, extent: $res) for $uname:$udom in $courseid"); |
} |
} |
return $putres; |
return $putres; |
} |
} |