--- loncom/auth/lonauth.pm 2013/12/20 15:03:55 1.121.2.7
+++ loncom/auth/lonauth.pm 2021/01/04 03:48:29 1.121.2.21
@@ -1,7 +1,7 @@
# The LearningOnline Network
# User Authentication Module
#
-# $Id: lonauth.pm,v 1.121.2.7 2013/12/20 15:03:55 raeburn Exp $
+# $Id: lonauth.pm,v 1.121.2.21 2021/01/04 03:48:29 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -32,8 +32,6 @@ use strict;
use LONCAPA;
use Apache::Constants qw(:common);
use CGI qw(:standard);
-use DynaLoader; # for Crypt::DES version
-use Crypt::DES;
use Apache::loncommon();
use Apache::lonnet;
use Apache::lonmenu();
@@ -42,11 +40,12 @@ use Fcntl qw(:flock);
use Apache::lonlocal;
use Apache::File();
use HTML::Entities;
+use Digest::MD5;
# ------------------------------------------------------------ Successful login
sub success {
my ($r, $username, $domain, $authhost, $lowerurl, $extra_env,
- $form) = @_;
+ $form,$cid) = @_;
# ------------------------------------------------------------ Get cookie ready
my $cookie =
@@ -60,8 +59,9 @@ sub success {
# -------------------------------------------------------------------- Log this
+ my $ip = &Apache::lonnet::get_requestor_ip();
&Apache::lonnet::log($domain,$username,$authhost,
- "Login $ENV{'REMOTE_ADDR'}");
+ "Login $ip");
# ------------------------------------------------- Check for critical messages
@@ -72,8 +72,27 @@ sub success {
}
}
-# ------------------------------------------------------------ Get cookie ready
- $cookie="lonID=$cookie; path=/";
+# ------------------------------------------------------------ Get cookies ready
+ my ($securecookie,$defaultcookie);
+ my $ssl = $r->subprocess_env('https');
+ if ($ssl) {
+ $securecookie="lonSID=$cookie; path=/; HttpOnly; secure";
+ my $lonidsdir=$r->dir_config('lonIDsDir');
+ if (($lonidsdir) && (-e "$lonidsdir/$cookie.id")) {
+ my $linkname=substr(Digest::MD5::md5_hex(Digest::MD5::md5_hex(time(). {}. rand(). $$)), 0, 32).'_linked';
+ if (-e "$lonidsdir/$linkname.id") {
+ unlink("$lonidsdir/$linkname.id");
+ }
+ my $made_symlink = eval { symlink("$lonidsdir/$cookie.id",
+ "$lonidsdir/$linkname.id"); 1 };
+ if ($made_symlink) {
+ $defaultcookie = "lonLinkID=$linkname; path=/; HttpOnly;";
+ &Apache::lonnet::appenv({'user.linkedenv' => $linkname});
+ }
+ }
+ } else {
+ $defaultcookie = "lonID=$cookie; path=/; HttpOnly;";
+ }
# -------------------------------------------------------- Menu script and info
my $destination = $lowerurl;
@@ -99,20 +118,28 @@ sub success {
}
if (defined($form->{symb})) {
my $destsymb = $form->{symb};
+ my $encrypted;
+ if ($destsymb =~ m{^/enc/}) {
+ $encrypted = 1;
+ if ($cid) {
+ $destsymb = &Apache::lonenc::unencrypted($destsymb,$cid);
+ }
+ }
$destination .= ($destination =~ /\?/) ? '&' : '?';
if ($destsymb =~ /___/) {
- # FIXME Need to deal with encrypted symbs and urls as needed.
my ($map,$resid,$desturl)=split(/___/,$destsymb);
- unless ($desturl=~/^(adm|editupload|public)/) {
- $desturl = &Apache::lonnet::clutter($desturl);
+ $desturl = &Apache::lonnet::clutter($desturl);
+ if ($encrypted) {
+ $desturl = &Apache::lonenc::encrypted($desturl,1,$cid);
+ $destsymb = $form->{symb};
}
$desturl = &HTML::Entities::encode($desturl,'"<>&');
$destsymb = &HTML::Entities::encode($destsymb,'"<>&');
- $destination .= '&destinationurl='.$desturl.
+ $destination .= 'destinationurl='.$desturl.
'&destsymb='.$destsymb;
- } else {
+ } elsif (!$encrypted) {
$destsymb = &HTML::Entities::encode($destsymb,'"<>&');
- $destination .= '&destinationurl='.$destsymb;
+ $destination .= 'destinationurl='.$destsymb;
}
}
if ($destination =~ m{^/adm/roles}) {
@@ -140,7 +167,12 @@ sub success {
# ------------------------------------------------- Output for successful login
&Apache::loncommon::content_type($r,'text/html');
- $r->header_out('Set-cookie' => $cookie);
+ if ($securecookie) {
+ $r->headers_out->add('Set-cookie' => $securecookie);
+ }
+ if ($defaultcookie) {
+ $r->headers_out->add('Set-cookie' => $defaultcookie);
+ }
$r->send_http_header;
my %lt=&Apache::lonlocal::texthash(
@@ -165,6 +197,7 @@ $maincall
$continuelink
$end_page
ENDSUCCESS
+ return;
}
# --------------------------------------------------------------- Failed login!
@@ -206,18 +239,19 @@ sub failed {
my $end_page = &Apache::loncommon::end_page();
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
+ my @actions =
+ (&mt('Please [_1]log in again[_2].','',''));
my $loginhelp = &loginhelpdisplay($udom);
if ($loginhelp) {
- $loginhelp = ''.&mt('Login problems?').'
';
+ push(@actions, ''.&mt('Login problems?').'');
}
+ #FIXME: link to helpdesk might be added here
$r->print(
$start_page
- .''.&mt('Sorry ...').'
'
- .''.&mt($message).'
'
- .''.&mt('Please [_1]log in again[_2].','','')
- .'
'
- .$loginhelp
+ .''.&mt('Sorry ...').'
'
+ .&Apache::lonhtmlcommon::confirm_success(&mt($message),1).'
'
+ .&Apache::lonhtmlcommon::actionbox(\@actions)
.$end_page
);
}
@@ -238,7 +272,6 @@ sub reroute {
sub handler {
my $r = shift;
my $londocroot = $r->dir_config('lonDocRoot');
- my $form;
# Are we re-routing?
if (-e "$londocroot/lon-status/reroute.txt") {
&reroute($r);
@@ -302,10 +335,11 @@ sub handler {
# split user logging in and "su"-user
- ($form{'uname'},$form{'suname'})=split(/\:/,$form{'uname'});
+ ($form{'uname'},$form{'suname'},$form{'sudom'})=split(/\:/,$form{'uname'});
$form{'uname'} = &LONCAPA::clean_username($form{'uname'});
$form{'suname'}= &LONCAPA::clean_username($form{'suname'});
- $form{'udom'} = &LONCAPA::clean_domain( $form{'udom'});
+ $form{'udom'} = &LONCAPA::clean_domain($form{'udom'});
+ $form{'sudom'} = &LONCAPA::clean_domain($form{'sudom'});
my $role = $r->dir_config('lonRole');
my $domain = $r->dir_config('lonDefDomain');
@@ -317,12 +351,6 @@ sub handler {
my $tmpinfo=Apache::lonnet::reply('tmpget:'.$form{'logtoken'},
$form{'serverid'});
- my %sessiondata;
- if ($form{'iptoken'}) {
- %sessiondata = &Apache::lonnet::tmpget($form{'iptoken'});
- my $delete = &Apache::lonnet::tmpdel($form{'token'});
- }
-
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);
@@ -342,40 +370,27 @@ sub handler {
return OK;
}
- my ($key,$firsturl,$rolestr,$symbstr)=split(/&/,$tmpinfo);
+ my ($key,$firsturl,$rolestr,$symbstr,$iptokenstr)=split(/&/,$tmpinfo);
if ($rolestr) {
$rolestr = &unescape($rolestr);
}
if ($symbstr) {
$symbstr= &unescape($symbstr);
}
+ if ($iptokenstr) {
+ $iptokenstr = &unescape($iptokenstr);
+ }
if ($rolestr =~ /^role=/) {
(undef,$form{'role'}) = split('=',$rolestr);
}
if ($symbstr =~ /^symb=/) {
(undef,$form{'symb'}) = split('=',$symbstr);
}
-
- my $keybin=pack("H16",$key);
-
- my $cipher;
- if ($Crypt::DES::VERSION>=2.03) {
- $cipher=new Crypt::DES $keybin;
- }
- else {
- $cipher=new DES $keybin;
+ if ($iptokenstr =~ /^iptoken=/) {
+ (undef,$form{'iptoken'}) = split('=',$iptokenstr);
}
- my $upass='';
- for (my $i=0;$i<=2;$i++) {
- my $chunk=
- $cipher->decrypt(unpack("a8",pack("H16",substr($form{'upass'.$i},0,16))));
- $chunk.=
- $cipher->decrypt(unpack("a8",pack("H16",substr($form{'upass'.$i},16,16))));
-
- $chunk=substr($chunk,1,ord(substr($chunk,0,1)));
- $upass.=$chunk;
- }
+ my $upass = &Apache::loncommon::des_decrypt($key,$form{'upass0'});
# ---------------------------------------------------------------- Authenticate
@@ -439,6 +454,8 @@ sub handler {
my $hosthere;
if ($form{'iptoken'}) {
+ my %sessiondata = &Apache::lonnet::tmpget($form{'iptoken'});
+ my $delete = &Apache::lonnet::tmpdel($form{'iptoken'});
if (($sessiondata{'domain'} eq $form{'udom'}) &&
($sessiondata{'username'} eq $form{'uname'})) {
$hosthere = 1;
@@ -447,20 +464,68 @@ sub handler {
# --------------------------------- Are we attempting to login as somebody else?
if ($form{'suname'}) {
+ my ($suname,$sudom,$sudomref);
+ $suname = $form{'suname'};
+ $sudom = $form{'udom'};
+ if ($form{'sudom'}) {
+ unless ($sudom eq $form{'sudom'}) {
+ if (&Apache::lonnet::domain($form{'sudom'})) {
+ $sudomref = [$form{'sudom'}];
+ $sudom = $form{'sudom'};
+ }
+ }
+ }
# ------------ see if the original user has enough privileges to pull this stunt
- if (&Apache::lonnet::privileged($form{'uname'},$form{'udom'})) {
+ if (&Apache::lonnet::privileged($form{'uname'},$form{'udom'},$sudomref)) {
# ---------------------------------------------------- see if the su-user exists
- unless (&Apache::lonnet::homeserver($form{'suname'},$form{'udom'})
- eq 'no_host') {
- &Apache::lonnet::logthis(&Apache::lonnet::homeserver($form{'suname'},$form{'udom'}));
+ unless (&Apache::lonnet::homeserver($suname,$sudom) eq 'no_host') {
# ------------------------------ see if the su-user is not too highly privileged
- unless (&Apache::lonnet::privileged($form{'suname'},$form{'udom'})) {
+ if (&Apache::lonnet::privileged($suname,$sudom)) {
+ &Apache::lonnet::logthis('Attempted switch user to privileged user');
+ } else {
+ my $noprivswitch;
+#
+# su-user's home server and user's home server must have one of:
+# (a) same domain
+# (b) same primary library server for the two domains
+# (c) same "internet domain" for primary library server(s) for home servers' domains
+#
+ my $suprim = &Apache::lonnet::domain($sudom,'primary');
+ my $suintdom = &Apache::lonnet::internet_dom($suprim);
+ unless ($sudom eq $form{'udom'}) {
+ my $uprim = &Apache::lonnet::domain($form{'udom'},'primary');
+ my $uintdom = &Apache::lonnet::internet_dom($uprim);
+ unless ($suprim eq $uprim) {
+ unless ($suintdom eq $uintdom) {
+ &Apache::lonnet::logthis('Attempted switch user '
+ .'to user with different "internet domain".');
+ $noprivswitch = 1;
+ }
+ }
+ }
+
+ unless ($noprivswitch) {
+#
+# server where log-in occurs must have same "internet domain" as su-user's home
+# server
+#
+ my $lonhost = $r->dir_config('lonHostID');
+ my $hostintdom = &Apache::lonnet::internet_dom($lonhost);
+ if ($hostintdom ne $suintdom) {
+ &Apache::lonnet::logthis('Attempted switch user on a '
+ .'server with a different "internet domain".');
+ } else {
+
# -------------------------------------------------------- actually switch users
- &Apache::lonnet::logperm('User '.$form{'uname'}.' at '.$form{'udom'}.
- ' logging in as '.$form{'suname'});
- $form{'uname'}=$form{'suname'};
- } else {
- &Apache::lonnet::logthis('Attempted switch user to privileged user');
+
+ &Apache::lonnet::logperm('User '.$form{'uname'}.' at '.
+ $form{'udom'}.' logging in as '.$suname.':'.$sudom);
+ $form{'uname'}=$suname;
+ if ($form{'udom'} ne $sudom) {
+ $form{'udom'}=$sudom;
+ }
+ }
+ }
}
}
} else {
@@ -472,18 +537,47 @@ sub handler {
unless ($hosthere) {
($is_balancer,$otherserver) =
- &Apache::lonnet::check_loadbalancing($form{'uname'},$form{'udom'});
+ &Apache::lonnet::check_loadbalancing($form{'uname'},$form{'udom'},'login');
+ if ($is_balancer) {
+ # Check if browser sent a LON-CAPA load balancer cookie (and this is a balancer)
+ my ($found_server,$balancer_cookie) = &Apache::lonnet::check_for_balancer_cookie($r);
+ if (($found_server) && ($balancer_cookie =~ /^\Q$env{'user.domain'}\E_\Q$env{'user.name'}\E_/)) {
+ $otherserver = $found_server;
+ }
+ if ($otherserver eq '') {
+ my $lowest_load;
+ ($otherserver,undef,undef,undef,$lowest_load) = &Apache::lonnet::choose_server($form{'udom'});
+ if ($lowest_load > 100) {
+ $otherserver = &Apache::lonnet::spareserver($lowest_load,$lowest_load,1,$form{'udom'});
+ }
+ }
+ if ($otherserver ne '') {
+ my @hosts = &Apache::lonnet::current_machine_ids();
+ if (grep(/^\Q$otherserver\E$/,@hosts)) {
+ $hosthere = $otherserver;
+ }
+ }
+ }
}
- if ($is_balancer) {
- if (!$otherserver) {
- ($otherserver) = &Apache::lonnet::choose_server($form{'udom'});
- }
+ if (($is_balancer) && (!$hosthere)) {
if ($otherserver) {
&success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',undef,
\%form);
- $r->internal_redirect('/adm/switchserver?otherserver='.$otherserver.'&origurl='.$firsturl);
+ my $switchto = '/adm/switchserver?otherserver='.$otherserver;
+ if (($firsturl) && ($firsturl ne '/adm/switchserver') && ($firsturl ne '/adm/roles')) {
+ $switchto .= '&origurl='.$firsturl;
+ }
+ if ($form{'role'}) {
+ $switchto .= '&role='.$form{'role'};
+ }
+ if ($form{'symb'}) {
+ $switchto .= '&symb='.$form{'symb'};
+ }
+ $r->internal_redirect($switchto);
} else {
+ &Apache::loncommon::content_type($r,'text/html');
+ $r->send_http_header;
$r->print(&noswitch());
}
return OK;
@@ -493,8 +587,20 @@ sub handler {
if ($otherserver) {
&success($r,$form{'uname'},$form{'udom'},$authhost,'noredirect',undef,
\%form);
- $r->internal_redirect('/adm/switchserver?otherserver='.$otherserver.'&origurl='.$firsturl);
+ my $switchto = '/adm/switchserver?otherserver='.$otherserver;
+ if (($firsturl) && ($firsturl ne '/adm/switchserver') && ($firsturl ne '/adm/roles')) {
+ $switchto .= '&origurl='.$firsturl;
+ }
+ if ($form{'role'}) {
+ $switchto .= '&role='.$form{'role'};
+ }
+ if ($form{'symb'}) {
+ $switchto .= '&symb='.$form{'symb'};
+ }
+ $r->internal_redirect($switchto);
} else {
+ &Apache::loncommon::content_type($r,'text/html');
+ $r->send_http_header;
$r->print(&noswitch());
}
return OK;
@@ -526,6 +632,9 @@ sub handler {
return OK;
}
}
+ if (($is_balancer) && ($hosthere)) {
+ $form{'noloadbalance'} = $hosthere;
+ }
&success($r,$form{'uname'},$form{'udom'},$authhost,$firsturl,undef,
\%form);
return OK;