$lt{'wel'}
-$lt{'mes'}
+$welcome
$lt{'pro'}
-$remoteinfo
-$maincall
$continuelink
$end_page
ENDSUCCESS
@@ -158,8 +157,7 @@ ENDSUCCESS
sub failed {
my ($r,$message,$form) = @_;
- my $start_page = &Apache::loncommon::start_page('Unsuccessful Login',undef,
- {'no_inline_link' => 1,});
+ my $start_page = &Apache::loncommon::start_page('Unsuccessful Login',undef);
my $retry = '/adm/login?username='.$form->{'uname'}.
'&domain='.$form->{'udom'};
if (exists($form->{role})) {
@@ -209,23 +207,33 @@ sub handler {
# -------------------------------- Prevent users from attempting to login twice
my $handle = &Apache::lonnet::check_for_valid_session($r);
if ($handle ne '') {
+ my $lonidsdir=$r->dir_config('lonIDsDir');
+ if ($handle=~/^publicuser\_/) {
+# For "public user" - remove it, we apparently really want to login
+ unlink($r->dir_config('lonIDsDir')."/$handle.id");
+ } else {
# Indeed, a valid token is found
- &Apache::loncommon::content_type($r,'text/html');
- $r->send_http_header;
- my $start_page =
- &Apache::loncommon::start_page('Already logged in');
- my $end_page =
- &Apache::loncommon::end_page();
- $r->print(
- $start_page
- .''.&mt('You are already logged in!').'
'
- .''.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].'
- ,'','','','')
- .'
'
- .''.&mt('Login problems?').'
'
- .$end_page
- );
- return OK;
+ &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
+ &Apache::loncommon::content_type($r,'text/html');
+ $r->send_http_header;
+ my $start_page =
+ &Apache::loncommon::start_page('Already logged in');
+ my $end_page =
+ &Apache::loncommon::end_page();
+ my $dest = '/adm/roles';
+ if ($env{'form.firsturl'} ne '') {
+ $dest = $env{'form.firsturl'};
+ }
+ $r->print(
+ $start_page
+ .''.&mt('You are already logged in!').'
'
+ .''.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].'
+ ,'','','','')
+ .'
'
+ .$end_page
+ );
+ return OK;
+ }
}
# ---------------------------------------------------- No valid token, continue
@@ -266,7 +274,8 @@ sub handler {
my $tmpinfo=Apache::lonnet::reply('tmpget:'.$form{'logtoken'},
$form{'serverid'});
- if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) {
+ if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost') ||
+ ($tmpinfo eq 'no_such_host')) {
&failed($r,'Information needed to verify your login information is missing, inaccessible or expired.',\%form);
return OK;
} else {
@@ -336,35 +345,47 @@ sub handler {
if (grep(/^login$/,@cancreate)) {
$defaultauth = 1;
}
- my $uname = $form{'uname'};
- my $authhost=Apache::lonnet::authenticate($uname,$upass,
- $form{'udom'},$defaultauth);
+ my $clientcancheckhost = 1;
+ my $authhost=Apache::lonnet::authenticate($form{'uname'},$upass,
+ $form{'udom'},$defaultauth,
+ $clientcancheckhost);
# --------------------------------------------------------------------- Failed?
if ($authhost eq 'no_host') {
- my $lc_uname = lc($form{'uname'});
- if ($uname eq $lc_uname) {
- &failed($r,'Username and/or password could not be authenticated.',
- \%form);
- return OK;
- } else {
- $authhost=Apache::lonnet::authenticate($lc_uname,$upass,
- $form{'udom'},$defaultauth);
- if ($authhost eq 'no_host') {
- &failed($r,'Username (in lower case) and/or password could not be authenticated.',
- \%form);
- return OK;
- } elsif ($authhost eq 'no_account_on_host') {
- &create_account($r,\%form,\@cancreate,$lc_uname,$contact_name);
+ &failed($r,'Username and/or password could not be authenticated.',
+ \%form);
+ return OK;
+ } elsif ($authhost eq 'no_account_on_host') {
+ my %domconfig =
+ &Apache::lonnet::get_dom('configuration',['usercreation'],$form{'udom'});
+ if (grep(/^login$/,@cancreate)) {
+ my $domdesc = &Apache::lonnet::domain($form{'udom'},'description');
+ unless (&check_can_host($r,\%form,'no_account_on_host',$domdesc)) {
return OK;
- } else {
- $form{'uname'} = $lc_uname;
}
+ my $start_page =
+ &Apache::loncommon::start_page('Create a user account in LON-CAPA');
+ my $lonhost = $r->dir_config('lonHostID');
+ my $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
+ my $contacts =
+ &Apache::loncommon::build_recipient_list(undef,'helpdeskmail',
+ $form{'udom'},$origmail);
+ my ($contact_email) = split(',',$contacts);
+ my $output = &Apache::createaccount::username_check($form{'uname'},
+ $form{'udom'},$domdesc,'',
+ $lonhost,$contact_email,$contact_name);
+ &Apache::loncommon::content_type($r,'text/html');
+ $r->send_http_header;
+ &Apache::createaccount::print_header($r,$start_page);
+ $r->print(''.&mt('Account creation').'
'.
+ &mt('Although your username and password were authenticated, you do not currently have a LON-CAPA account at this institution.').'
'.
+ $output.&Apache::loncommon::end_page());
+ return OK;
+ } else {
+ &failed($r,'Although your username and password were authenticated, you do not currently have a LON-CAPA account in this domain, and you are not permitted to create one.',\%form);
+ return OK;
}
- } elsif ($authhost eq 'no_account_on_host') {
- &create_account($r,\%form,\@cancreate,$uname);
- return OK;
}
if (($firsturl eq '') ||
@@ -395,46 +416,134 @@ sub handler {
}
if ($r->dir_config("lonBalancer") eq 'yes') {
- &success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',undef,
- \%form);
- $r->internal_redirect('/adm/switchserver');
+ my $otherserver = &Apache::lonnet::spareserver(30000,undef,1,$form{'udom'});
+ if (!$otherserver) {
+ ($otherserver) = &Apache::lonnet::choose_server($form{'udom'});
+ }
+ if ($otherserver) {
+ &success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',undef,
+ \%form);
+ $r->internal_redirect('/adm/switchserver?otherserver='.$otherserver.'&origurl='.$firsturl);
+ } else {
+ $r->print(&noswitch());
+ }
+ return OK;
} else {
- &success($r,$form{'uname'},$form{'udom'},$authhost,$firsturl,undef,
- \%form);
+ if (!&check_can_host($r,\%form,$authhost)) {
+ my $otherserver = &Apache::lonnet::choose_server($form{'udom'});
+ if ($otherserver) {
+ &success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',undef,
+ \%form);
+ $r->internal_redirect('/adm/switchserver?otherserver='.$otherserver.'&origurl='.$firsturl);
+ } else {
+ $r->print(&noswitch());
+ }
+ return OK;
+ }
+
+# ------------------------------------------------------- Do the load balancing
+
+# ---------------------------------------------------------- Determine own load
+ my $loadlim = $r->dir_config('lonLoadLim');
+ my $loadavg;
+ {
+ my $loadfile=Apache::File->new('/proc/loadavg');
+ $loadavg=<$loadfile>;
+ }
+ $loadavg =~ s/\s.*//g;
+ my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
+ my $userloadpercent=&Apache::lonnet::userload();
+
+# ---------------------------------------------------------- Are we overloaded?
+ if ((($userloadpercent>100.0)||($loadpercent>100.0))) {
+ my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent,1,$form{'udom'});
+ if (!$unloaded) {
+ $unloaded = &Apache::lonnet::choose_server($form{'udom'});
+ }
+ if ($unloaded) {
+ &success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',
+ undef,\%form);
+ $r->internal_redirect('/adm/switchserver?otherserver='.$unloaded.'&origurl='.$firsturl);
+ return OK;
+ }
+ }
+ &success($r,$form{'uname'},$form{'udom'},$authhost,$firsturl,undef,
+ \%form);
+ return OK;
}
- return OK;
}
-sub create_account {
- my ($r,$form,$cancreate,$uname,$contact_name) = @_;
- return unless((ref($form) eq 'HASH') && (ref($cancreate) eq 'ARRAY'));
- my %domconfig =
- &Apache::lonnet::get_dom('configuration',['usercreation'],$form->{'udom'});
- if (grep(/^login$/,@{$cancreate})) {
- my $start_page =
- &Apache::loncommon::start_page('Create a user account in LON-CAPA',
- '',{'no_inline_link' => 1,});
- my $domdesc = &Apache::lonnet::domain($form->{'udom'},'description');
- my $lonhost = $r->dir_config('lonHostID');
- my $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
- my $contacts =
- &Apache::loncommon::build_recipient_list(undef,'helpdeskmail',
- $form->{'udom'},$origmail);
- my ($contact_email) = split(',',$contacts);
- my $output =
- &Apache::createaccount::username_check($uname,$form->{'udom'},
- $domdesc,'',$lonhost,
- $contact_email,$contact_name);
- &Apache::loncommon::content_type($r,'text/html');
- $r->send_http_header;
- &Apache::createaccount::print_header($r,$start_page);
- $r->print(''.&mt('Account creation').'
'.
- &mt('Although your username and password were authenticated, you do not currently have a LON-CAPA account at this institution.').'
'.
- $output.&Apache::loncommon::end_page());
- } else {
- &failed($r,'Although your username and password were authenticated, you do not currently have a LON-CAPA account in this domain, and you are not permitted to create one.',$form);
+sub check_can_host {
+ my ($r,$form,$authhost,$domdesc) = @_;
+ return unless (ref($form) eq 'HASH');
+ my $canhost = 1;
+ my $lonhost = $r->dir_config('lonHostID');
+ my $udom = $form->{'udom'};
+ my @intdoms;
+ my $internet_names = &Apache::lonnet::get_internet_names($lonhost);
+ if (ref($internet_names) eq 'ARRAY') {
+ @intdoms = @{$internet_names};
+ }
+ my $uprimary_id = &Apache::lonnet::domain($udom,'primary');
+ my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
+ unless ($uint_dom ne '' && grep(/^\Q$uint_dom\E$/,@intdoms)) {
+ my $machine_dom = &Apache::lonnet::host_domain($lonhost);
+ my $hostname = &Apache::lonnet::hostname($lonhost);
+ my $serverhomeID = &Apache::lonnet::get_server_homeID($hostname);
+ my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
+ my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
+ my %udomdefaults = &Apache::lonnet::get_domain_defaults($udom);
+ my $loncaparev;
+ if ($authhost eq 'no_account_on_host') {
+ $loncaparev = &Apache::lonnet::get_server_loncaparev($machine_dom);
+ } else {
+ $loncaparev = &Apache::lonnet::get_server_loncaparev($machine_dom,$lonhost);
+ }
+ $canhost = &Apache::lonnet::can_host_session($udom,$lonhost,$loncaparev,
+ $udomdefaults{'remotesessions'},
+ $defdomdefaults{'hostedsessions'});
+ }
+ unless ($canhost) {
+ if ($authhost eq 'no_account_on_host') {
+ my $checkloginvia = 1;
+ my ($login_host,$hostname) =
+ &Apache::lonnet::choose_server($udom,$checkloginvia);
+ &Apache::loncommon::content_type($r,'text/html');
+ $r->send_http_header;
+ if ($login_host ne '') {
+ my $protocol = $Apache::lonnet::protocol{$login_host};
+ $protocol = 'http' if ($protocol ne 'https');
+ my $newurl = $protocol.'://'.$hostname.'/adm/createaccount';
+ $r->print(&Apache::loncommon::start_page('Create a user account in LON-CAPA').
+ ''.&mt('Account creation').'
'.
+ &mt('You do not currently have a LON-CAPA account at this institution.').'
'.
+ ''.&mt('You will be able to create one by logging into a LON-CAPA server within the [_1] domain.',$domdesc).'
'.
+ ''.&mt('[_1]Log in[_2]','','').
+ &Apache::loncommon::end_page());
+ } else {
+ $r->print(&Apache::loncommon::start_page('Access to LON-CAPA unavailable').
+ '
'.&mt('Account creation unavailable').'
'.
+ &mt('You do not currently have a LON-CAPA account at this institution.').'
'.
+ ''.&mt('Currently a LON-CAPA server is not available within the [_1] domain for you to log-in to, to create an account.',$domdesc).'
'.
+ &Apache::loncommon::end_page());
+ }
+ } else {
+ &success($r,$form->{'uname'},$udom,$authhost,'noredirect',undef,
+ $form);
+ my ($otherserver) = &Apache::lonnet::choose_server($udom);
+ $r->internal_redirect('/adm/switchserver?otherserver='.$otherserver);
+ }
}
- return;
+ return $canhost;
+}
+
+sub noswitch {
+ my $result = &Apache::loncommon::start_page('Access to LON-CAPA unavailable').
+ ''.&mt('Session unavailable').'
'.
+ &mt('This LON-CAPA server is unable to host your session.').'
'.
+ ''.&mt('Currently no other LON-CAPA server is available to host your session either.').'
'.
+ &Apache::loncommon::end_page();
+ return $result;
}
1;