You are already logged in
-Please either continue the current session or
-logout.
-
-Problems?
-$end_page
-ENDFAILED
- return OK;
+ &Apache::lonnet::transfer_profile_to_env($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
@@ -222,13 +267,15 @@ ENDFAILED
my $role = $r->dir_config('lonRole');
my $domain = $r->dir_config('lonDefDomain');
my $prodir = $r->dir_config('lonUsersDir');
+ my $contact_name = &mt('LON-CAPA helpdesk');
# ---------------------------------------- Get the information from login token
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($r,'Information needed to verify your login information is missing, inaccessible or expired.',\%form);
return OK;
} else {
@@ -240,7 +287,25 @@ ENDFAILED
return OK;
}
}
- my ($key,$firsturl)=split(/&/,$tmpinfo);
+
+ if (!&Apache::lonnet::domain($form{'udom'})) {
+ &failed($r,'The domain you provided is not a valid LON-CAPA domain.',\%form);
+ return OK;
+ }
+
+ my ($key,$firsturl,$rolestr,$symbstr)=split(/&/,$tmpinfo);
+ if ($rolestr) {
+ $rolestr = &unescape($rolestr);
+ }
+ if ($symbstr) {
+ $symbstr= &unescape($symbstr);
+ }
+ if ($rolestr =~ /^role=/) {
+ (undef,$form{'role'}) = split('=',$rolestr);
+ }
+ if ($symbstr =~ /^symb=/) {
+ (undef,$form{'symb'}) = split('=',$symbstr);
+ }
my $keybin=pack("H16",$key);
@@ -280,8 +345,10 @@ ENDFAILED
if (grep(/^login$/,@cancreate)) {
$defaultauth = 1;
}
+ my $clientcancheckhost = 1;
my $authhost=Apache::lonnet::authenticate($form{'uname'},$upass,
- $form{'udom'},$defaultauth);
+ $form{'udom'},$defaultauth,
+ $clientcancheckhost);
# --------------------------------------------------------------------- Failed?
@@ -293,23 +360,27 @@ ENDFAILED
my %domconfig =
&Apache::lonnet::get_dom('configuration',['usercreation'],$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 ($output,$checkfail) = &Apache::createaccount::username_check($form{'uname'},
- $form{'udom'},$domdesc);
+ unless (&check_can_host($r,\%form,'no_account_on_host',$domdesc)) {
+ return OK;
+ }
+ 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);
- my $msg = ''.&mt('Although your username and password were authenticated, you do not currently have a LON-CAPA account in this domain.').'
';
- if ($checkfail) {
- $msg .= &mt('A LON-CAPA account may not be created with the username you used.');
- } else {
- $msg .= &mt('To create one, use the table below to provide information about yourself (if appropriate), then click the "Create LON-CAPA account" button.');
- }
- $r->print(''.$msg.'
'.$output);
- $r->print(&Apache::loncommon::end_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);
@@ -344,15 +415,137 @@ ENDFAILED
}
}
- if ($r->dir_config("lonBalancer") eq 'yes') {
- &success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',undef,
- \%form);
- $r->internal_redirect('/adm/switchserver');
+ my ($is_balancer,$otherserver) =
+ &Apache::lonnet::check_loadbalancing($form{'uname'},$form{'udom'});
+
+ if ($is_balancer) {
+ 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;
+ }
+}
+
+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 OK;
+ 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;