--- loncom/auth/lonlogin.pm 2006/09/19 19:03:08 1.80 +++ loncom/auth/lonlogin.pm 2010/03/17 14:37:43 1.135 @@ -1,7 +1,7 @@ # The LearningOnline Network # Login Screen # -# $Id: lonlogin.pm,v 1.80 2006/09/19 19:03:08 albertel Exp $ +# $Id: lonlogin.pm,v 1.135 2010/03/17 14:37:43 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -30,7 +30,6 @@ package Apache::lonlogin; use strict; use Apache::Constants qw(:common); -use CGI::Cookie(); use Apache::File (); use Apache::lonnet; use Apache::loncommon(); @@ -40,7 +39,6 @@ use Apache::migrateuser(); use lib '/home/httpd/lib/perl/'; use LONCAPA; - sub handler { my $r = shift; @@ -48,7 +46,10 @@ sub handler { (join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'}, $ENV{'REDIRECT_QUERY_STRING'}), ['interface','username','domain','firsturl','localpath','localres', - 'token']); + 'token','role','symb']); + if (!defined($env{'form.firsturl'})) { + &Apache::lonacc::get_posted_cgi($r,['firsturl']); + } # -- check if they are a migrating user if (defined($env{'form.token'})) { @@ -70,36 +71,32 @@ sub handler { # -------------------------------- Prevent users from attempting to login twice - my %cookies=CGI::Cookie->parse($r->header_in('Cookie')); - my $lonid=$cookies{'lonID'}; - my $cookie; - if ($lonid) { - my $handle=$lonid->value; - $handle=~s/\W//g; + my $handle = &Apache::lonnet::check_for_valid_session($r); + if ($handle ne '') { my $lonidsdir=$r->dir_config('lonIDsDir'); - if (-e "$lonidsdir/$handle.id") { -# Is there an existing token file? - if ($handle=~/^publicuser\_/) { + if ($handle=~/^publicuser\_/) { # For "public user" - remove it, we apparently really want to login - unlink("$lonidsdir/$handle.id"); - } elsif ($handle ne '') { + unlink($r->dir_config('lonIDsDir')."/$handle.id"); + } else { # Indeed, a valid token is found - my $start_page = - &Apache::loncommon::start_page('Already logged in'); - my $end_page = - &Apache::loncommon::end_page(); - $r->print(<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); + 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 @@ -112,41 +109,33 @@ ENDFAILED # ----------------------------------------------------------- Process Interface $env{'form.interface'}=~s/\W//g; - my $textbrowsers=$r->dir_config('lonTextBrowsers'); my $httpbrowser=$ENV{"HTTP_USER_AGENT"}; - - foreach (split(/\:/,$textbrowsers)) { - if ($httpbrowser=~/$_/i) { - $env{'form.interface'}='textual'; - } - } - my $fullgraph=($env{'form.interface'} ne 'textual'); - my $port_to_use=$r->dir_config('lonhttpdPort'); - if (!defined($port_to_use)) { - $port_to_use='8080'; - } - my $iconpath= 'http://'.$ENV{'HTTP_HOST'}.':'.$port_to_use. - $r->dir_config('lonIconsURL'); - my $domain = $r->dir_config('lonDefDomain'); - my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0]; - foreach my $posdom (&Apache::lonnet::current_machine_domains()) { - if (lc($posdom) eq lc($testdomain)) { $domain=$posdom; } + my $iconpath= + &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL')); + + my $lonhost = $r->dir_config('lonHostID'); + my $domain = &Apache::lonnet::default_login_domain(); + if ($lonhost ne '') { + my $redirect = &check_loginvia($domain,$lonhost); + if ($redirect) { + $r->print($redirect); + return OK; + } } + if (($env{'form.domain'}) && - ($Apache::lonnet::domaindescription{$env{'form.domain'}})) { + (&Apache::lonnet::domain($env{'form.domain'},'description'))) { $domain=$env{'form.domain'}; } my $role = $r->dir_config('lonRole'); my $loadlim = $r->dir_config('lonLoadLim'); my $servadm = $r->dir_config('lonAdmEMail'); - my $sysadm = $r->dir_config('lonSysEMail'); - my $lonhost = $r->dir_config('lonHostID'); my $tabdir = $r->dir_config('lonTabDir'); my $include = $r->dir_config('lonIncludes'); my $expire = $r->dir_config('lonExpire'); my $version = $r->dir_config('lonVersion'); - my $host_name = $Apache::lonnet::hostname{$lonhost}; + my $host_name = &Apache::lonnet::hostname($lonhost); # --------------------------------------------- Default values for login fields @@ -167,9 +156,8 @@ ENDFAILED my $otherserver= &Apache::lonnet::absolute_url($host_name); my $firsturl= ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'}); -# ---------------------------------------- Are we access server and overloaded? - if (($role eq 'access') && - (($userloadpercent>100.0)||($loadpercent>100.0))) { +# ---------------------------------------------------------- Are we overloaded? + if ((($userloadpercent>100.0)||($loadpercent>100.0))) { my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent); if ($unloaded) { $otherserver=$unloaded; } } @@ -197,8 +185,18 @@ ENDFAILED if ($uextkey>2147483647) { $uextkey-=4294967296; } # -------------------------------------------------------- Store away log token + my $tokenextras; + if ($env{'form.role'}) { + $tokenextras = '&role='.&escape($env{'form.role'}); + } + if ($env{'form.symb'}) { + if (!$tokenextras) { + $tokenextras = '&'; + } + $tokenextras .= '&symb='.&escape($env{'form.symb'}); + } my $logtoken=Apache::lonnet::reply( - 'tmpput:'.$ukey.$lkey.'&'.$firsturl, + 'tmpput:'.$ukey.$lkey.'&'.$firsturl.$tokenextras, $lonhost); # ------------------- If we cannot talk to ourselves, we are in serious trouble @@ -208,414 +206,395 @@ ENDFAILED my $last; foreach my $hostid (sort { - $Apache::lonnet::hostname{$a} cmp - $Apache::lonnet::hostname{$b}; + &Apache::lonnet::hostname($a) cmp + &Apache::lonnet::hostname($b); } keys(%Apache::lonnet::spareid)) { next if ($hostid eq $lonhost); - next if ($last eq $Apache::lonnet::hostname{$hostid}); + my $hostname = &Apache::lonnet::hostname($hostid); + next if ($last eq $hostname); $spares.='
'. - $Apache::lonnet::hostname{$hostid}.''. - ' (preferred)'.$/; - $last=$Apache::lonnet::hostname{$hostid}; - } - $spares.= '
'; - foreach my $hostid (sort - { - $Apache::lonnet::hostname{$a} cmp - $Apache::lonnet::hostname{$b}; - } - keys(%Apache::lonnet::hostname)) { - next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid}); - next if ($last eq $Apache::lonnet::hostname{$hostid}); - $spares.='
'. - $Apache::lonnet::hostname{$hostid}.''; - $last=$Apache::lonnet::hostname{$hostid}; + $hostname.''. + ' '.&mt('(preferred)').''.$/; + $last=$hostname; } - $r->print(< -The LearningOnline Network with CAPA - - -

This LON-CAPA server is temporarily not available for login

-

Please attempt to login to one of the following servers:

$spares -

If the problem persists, please contact $servadm.

- - -ENDTROUBLE - return OK; - } +$spares.= '
'; +my %all_hostnames = &Apache::lonnet::all_hostnames(); +foreach my $hostid (sort + { + &Apache::lonnet::hostname($a) cmp + &Apache::lonnet::hostname($b); + } + keys(%all_hostnames)) { + next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid}); + my $hostname = &Apache::lonnet::hostname($hostid); + next if ($last eq $hostname); + $spares.='
'. + $hostname.''; + $last=$hostname; +} +$r->print( + '' + .'' + .&mt('The LearningOnline Network with CAPA') + .'' + .'' + .'

'.&mt('The LearningOnline Network with CAPA').'

' + .'' + .'

'.&mt('This LON-CAPA server is temporarily not available for login.').'

' + .'

'.&mt('Please attempt to login to one of the following servers:').'

' + .$spares + .'' + .'' +); +return OK; +} # ----------------------------------------------- Apparently we are in business - - my $domainlogo=&Apache::loncommon::domainlogo($domain); - $servadm=~s/\,/\
/g; - $sysadm=~s/\,/\
/g; - -# --------------------------------------------------- Print login screen header - $r->print(< - - -The LearningOnline Network with CAPA Login - -ENDHEADER -# ---------------------------------------------------- Serve out DES JavaScript - { - my $jsh=Apache::File->new($include."/londes.js"); - $r->print(<$jsh>); - } +$servadm=~s/\,/\
/g; # ----------------------------------------------------------- Front page design - my $pgbg= - ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF'); - my $font= - ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000'); - my $link= - ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF'); - my $vlink= - ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF'); - my $alink=&Apache::loncommon::designparm('login.alink',$domain); - my $mainbg= - ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF'); - my $sidebg= - ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF'); - my $logo=&Apache::loncommon::designparm('login.logo',$domain); - my $img=&Apache::loncommon::designparm('login.img',$domain); - -# ----------------------------------------------------------------------- Texts - -my %lt=&Apache::lonlocal::texthash( - 'un' => 'Username', - 'pw' => 'Password', - 'dom' => 'Domain', - 'perc' => 'percent', - 'load' => 'Load', - 'userload' => 'User Load', - 'about' => 'aboutlon.gif', - 'access' => 'accessbutton.gif', - 'auth' => 'userauthentication.gif', - 'log' => 'Log in', - 'help' => 'Help', - 'serv' => 'Server', - 'servadm' => 'Server Administration', - 'sysadm' => 'System Administration', - 'helpdesk' => 'Contact Helpdesk'); -# -------------------------------------------------- Change password field name - my $now=time; -# ---------------------------------------------------------- Serve rest of page - $r->print(< - - - this.document.server.elements.appletsuppress.value - =this.document.client.elements.appletsuppress.checked; +ENDSCRIPT - this.document.server.elements.fontenhance.value - =this.document.client.elements.fontenhance.checked; +# --------------------------------------------------- Print login screen header - this.document.server.elements.blackwhite.value - =this.document.client.elements.blackwhite.checked; +my %add_entries = ( + bgcolor => "$mainbg", + text => "$font", + link => "$link", + vlink => "$vlink", + alink => "$alink",); + +$r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js, + { 'redirect' => [$expire,'/adm/roles'], + 'add_entries' => \%add_entries, + 'only_body' => 1,})); - this.document.server.elements.remember.value - =this.document.client.elements.remember.checked; +# ----------------------------------------------------------------------- Texts - uextkey=this.document.client.elements.uextkey.value; - lextkey=this.document.client.elements.lextkey.value; - initkeys(); +my %lt=&Apache::lonlocal::texthash( + 'un' => 'Username', + 'pw' => 'Password', + 'dom' => 'Domain', + 'perc' => 'percent', + 'load' => 'Server Load', + 'userload' => 'User Load', + 'catalog' => 'Course/Community Catalog', + 'log' => 'Log in', + 'help' => 'Log-in Help', + 'serv' => 'Server', + 'servadm' => 'Server Administration', + 'helpdesk' => 'Contact Helpdesk', + 'forgotpw' => 'Forgot password?', + 'newuser' => 'New User?', + ); +# -------------------------------------------------- Change password field name - this.document.server.elements.upass0.value - =crypted(this.document.client.elements.upass$now.value.substr(0,15)); - this.document.server.elements.upass1.value - =crypted(this.document.client.elements.upass$now.value.substr(15,15)); - this.document.server.elements.upass2.value - =crypted(this.document.client.elements.upass$now.value.substr(30,15)); +my $forgotpw = &forgotpwdisplay(%lt); +$forgotpw .= '
' if $forgotpw; +my $loginhelp = &loginhelpdisplay($authdomain,%lt); +$loginhelp .= '
' if $loginhelp; - this.document.client.elements.uname.value=''; - this.document.client.elements.upass$now.value=''; +# ---------------------------------------------------- Serve out DES JavaScript +{ +my $jsh=Apache::File->new($include."/londes.js"); +$r->print(<$jsh>); +} +# ---------------------------------------------------------- Serve rest of page - this.document.server.submit(); - return false; - } - -ENDSCRIPT +$r->print( + '
'); - if ($fullgraph) { - $r->print( - ''); - } +# +# If the loadbalancing yielded just http:// because perhaps there's no loadbalancing? +# then just us a relative link to authenticate: +# - $r->print(< +$r->print(< - - - - - - - ENDSERVERFORM - if ($fullgraph) { $r->print(< - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
The Learning Online Network with CAPA
 
- Accessibility Options -
- About LON-CAPA - 		-
- -
-
-ENDTOP -} else { - $r->print('

The LearningOnline Network with CAPA

Text-based Interface Login

'.$announcements); +my $coursecatalog; +if (($showcoursecat eq '') || ($showcoursecat)) { + $coursecatalog = &coursecatalog_link($lt{'catalog'}).'
'; } - $r->print('
'); - unless ($fullgraph) { - $r->print(<Select Accessibility Options -
-
-
-
-
-

If you have accessibility needs that are not addressed by this interface, -please -contact the system administrator at $sysadm.


- Remember these settings for next login
-ENDACCESSOPTIONS +my $newuserlink; +if ($shownewuserlink) { + $newuserlink = &newuser_link($lt{'newuser'}).'
'; +} +my $logintitle; +if ($loginheader eq 'text') { + $logintitle ='

'.$lt{'log'}.'

'; } else { - $r->print(< - - - - - -ENDNOOPT -} - $r->print(< - - - - - - - - - - - - - + $logintitle = ''. + &mt('User Authentication').''; +} + +my $noscript_warning=''; +my $helpdeskscript; +my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail, + $authdomain,\$helpdeskscript); + +my $loginform=(< + + + :
+
+ :
+
+ :
+
+ + +LFORM + + if ($showbanner) { + $r->print(< +
+ The Learning Online Network with CAPA +
+HEADER + } + $r->print(<  +
+
+ $logintitle +
User Authentication

   $lt{'un'}:
   $lt{'pw'}:
- - + +
   $lt{'dom'}: + $loginform +
+ $noscript_warning + + +
+ $loginhelp + $forgotpw + $contactblock + $newuserlink + $coursecatalog +
+ +ENDTOP + if ($showmainlogo) { + $r->print(' '."\n"); + } +$r->print(<  +ENDTOP + +$r->print(<
   $lt{'help'} -
- -
- - -ENDLOGIN - if ($fullgraph) { - my $helpdeskscript; - my $contactblock = &contactdisplay(\%lt,$sysadm,$servadm,$version,$authdomain,\$helpdeskscript); - $r->print(< - - - - - -$announcements - - - - - - - - -
- - - - - - - - - - + + +
-    $lt{'dom'}:  + + $lt{'dom'}:  +  $domain
-    $lt{'serv'}:  + + $lt{'serv'}:  +  $lonhost ($role)
-    $lt{'load'}:  + + $lt{'load'}:  +  $loadpercent $lt{'perc'}
-    $lt{'userload'}:  + + $lt{'userload'}:  +  $userloadpercent $lt{'perc'}
+ $version +
-
- $contactblock - - - - - - - -$domainlogo - - - - - - - - -   - - - - - - - - - - - +
$helpdeskscript ENDDOCUMENT -} - $r->print(''); + my %endargs = ( 'noredirectlink' => 1, ); + $r->print(&Apache::loncommon::end_page(\%endargs)); return OK; } +sub check_loginvia { + my ($domain,$lonhost) = @_; + if ($domain eq '' || $lonhost eq '') { + return; + } + my %domconfhash = &Apache::loncommon::get_domainconf($domain); + my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost}; + my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost}; + my $output; + if ($loginvia ne '') { + my $noredirect; + my $ip = $ENV{'REMOTE_ADDR'}; + if ($ip eq '127.0.0.1') { + $noredirect = 1; + } else { + if ($loginvia_exempt ne '') { + my @exempt = split(',',$loginvia_exempt); + if (grep(/^\Q$ip\E$/,@exempt)) { + $noredirect = 1; + } + } + } + unless ($noredirect) { + my ($newhost,$path); + if ($loginvia =~ /:/) { + ($newhost,$path) = split(':',$loginvia); + } else { + $newhost = $loginvia; + } + if ($newhost ne $lonhost) { + if (&Apache::lonnet::hostname($newhost) ne '') { + $output = &redirect_page($newhost,$path); + } + } + } + } + return $output; +} + +sub redirect_page { + my ($desthost,$path) = @_; + my $protocol = $Apache::lonnet::protocol{$desthost}; + $protocol = 'http' if ($protocol ne 'https'); + unless ($path =~ m{^/}) { + $path = '/'.$path; + } + my $url = $protocol.'://'.&Apache::lonnet::hostname($desthost).$path; + if ($env{'form.firsturl'} ne '') { + $url .='?firsturl='.$env{'form.firsturl'}; + } + my $start_page = &Apache::loncommon::start_page('Switching Server',undef, + {'redirect' => [0,$url],}); + my $end_page = &Apache::loncommon::end_page(); + return $start_page.$end_page; +} + sub contactdisplay { - my ($lt,$sysadm,$servadm,$version,$authdomain,$helpdeskscript) = @_; + my ($lt,$servadm,$showadminmail,$authdomain,$helpdeskscript) = @_; my $contactblock; - my $showsysadm = 1; - my $showservadm = 1; my $showhelpdesk = 0; my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'}; if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) { $showhelpdesk = 1; } - if ($showsysadm) { - $contactblock .= '   '.$$lt{'sysadm'}.':
'. - '      '.$sysadm.'
'; - } - if ($showservadm) { - $contactblock .= '   '.$$lt{'servadm'}.':
'. - '      '.$servadm.'
 
'; + if ($servadm && $showadminmail) { + $contactblock .= $$lt{'servadm'}.':
'. + ''.$servadm.'
'; } if ($showhelpdesk) { - $contactblock .= '   '.$$lt{'helpdesk'}.'
'; + $contactblock .= ''.$lt->{'helpdesk'}.'
'; my $thisurl = &escape('/adm/login'); $$helpdeskscript = <<"ENDSCRIPT"; ENDSCRIPT } - $contactblock .= <<"ENDBLOCK"; -    $version -ENDBLOCK return $contactblock; } - + +sub forgotpwdisplay { + my (%lt) = @_; + my $prompt_for_resetpw = 1; + if ($prompt_for_resetpw) { + return ''.$lt{'forgotpw'}.''; + } + return; +} + +sub loginhelpdisplay { + my ($authdomain,%lt) = @_; + my $login_help = 1; + if ($login_help) { + my $dom = $authdomain; + if ($dom eq '') { + $dom = &Apache::lonnet::default_login_domain(); + } + my %helpconfig = &Apache::lonnet::get_dom('configuration',['helpsettings'],$dom); + my $loginhelp_url = $helpconfig{'helpsettings'}{'loginhelpurl'}; + if ($loginhelp_url ne '') { + return ''.$lt{'help'}.''; + } else { + return ''.$lt{'help'}.''; + } + } + return; +} + +sub coursecatalog_link { + my ($linkname) = @_; + return <<"END"; + $linkname +END +} + +sub newuser_link { + my ($linkname) = @_; + return ''.$linkname.''; +} 1; __END__