--- loncom/auth/lonauth.pm 1999/11/16 19:14:15 1.2 +++ loncom/auth/lonauth.pm 2003/07/17 15:24:46 1.54 @@ -1,37 +1,190 @@ # The LearningOnline Network # User Authentication Module +# +# $Id: lonauth.pm,v 1.54 2003/07/17 15:24:46 www Exp $ +# +# Copyright Michigan State University Board of Trustees +# +# This file is part of the LearningOnline Network with CAPA (LON-CAPA). +# +# LON-CAPA is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# LON-CAPA is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with LON-CAPA; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +# +# /home/httpd/html/adm/gpl.txt +# +# http://www.lon-capa.org/ +# # 5/21/99,5/22,5/25,5/26,5/27,5/29,6/2,6/11,6/14,6/15 -# 16/11 Gerd Kortemeyer +# 16/11,12/16, +# 1/14,2/24,2/28,2/29,3/7,5/29,5/30,5/31,6/1,6/5,6/29, +# 7/1,7/10,10/2,10/5,10/9,10/26,10/30,11/10, +# 05/28,05/29 Gerd Kortemeyer +# 07/28,08/03 Gerd Kortemeyer +# 8/20 Gerd Kortemeyer package Apache::lonauth; +use strict; use Apache::Constants qw(:common); use Apache::File; use CGI qw(:standard); use CGI::Cookie(); +use DynaLoader; # for Crypt::DES version +use Crypt::DES; +use Apache::loncommon(); use Apache::lonnet(); +use Apache::lonmenu(); +use Fcntl qw(:flock); + +my %FORM; # ------------------------------------------------------------ Successful login sub success { - my ($r, $lowerurl, $username, $domain, $authhost) = @_; + my ($r, $username, $domain, $authhost,$lowerurl) = @_; my $lonids=$r->dir_config('lonIDsDir'); -# See if old ID present, but overlooked + +# See if old ID present, if so, remove + + my $filename; + opendir(DIR,$lonids); + while ($filename=readdir(DIR)) { + if ($filename=~/^$username\_\d+\_$domain\_$authhost\.id$/) { + unlink($lonids.'/'.$filename); + } + } + closedir(DIR); + +# Give them a new cookie + my $cookie; - if ($cookie=<$lonids/$username\_*\_$domain\_$authhost.id>) { - $cookie=~s/\.id//; - $cookie=~s/$lonids\///; - } else { - my $now=time; - $cookie="$username\_$now\_$domain\_$authhost"; - { - my $idf=Apache::File->new(">$lonids/$cookie.id"); - print $idf "username=$username\n"; - print $idf "userdomain=$domain\n"; - print $idf "userhome=$authhost\n"; + my $now=time; + $cookie="$username\_$now\_$domain\_$authhost"; + +# Initialize roles + + my $userroles=Apache::lonnet::rolesinit($domain,$username,$authhost); + +# ------------------------------------ Check browser type and MathML capability + + my ($httpbrowser,$clientbrowser,$clientversion,$clientmathml, + $clientunicode,$clientos) = &Apache::loncommon::decode_user_agent($r); + +# -------------------------------------- Any accessibility options to remember? + if (($FORM{'interface'}) && ($FORM{'remember'} eq 'true')) { + foreach ('imagesuppress','appletsuppress', + 'embedsuppress','fontenhance','blackwhite') { + if ($FORM{$_} eq 'true') { + &Apache::lonnet::put('environment',{$_ => 'on'}, + $domain,$username); + } else { + &Apache::lonnet::del('environment',[$_],$domain,$username); + } + } + } +# ------------------------------------------------------------- Get environment + + my $userenv; + my %userenv=Apache::lonnet::dump('environment',$domain,$username); + my ($tmp) = keys(%userenv); + if ($tmp !~ /^(con_lost|error|no_such_host)/i) { + foreach my $key (keys(%userenv)) { + $userenv.="environment.$key=$userenv{$key}\n"; + } + } + if (($userenv{'interface'}) && (!$FORM{'interface'})) { + $FORM{'interface'}=$userenv{'interface'}; + } + $ENV{'environment.remote'}=$userenv{'remote'}; +# --------------- Do not trust query string to be put directly into environment + foreach ('imagesuppress','appletsuppress', + 'embedsuppress','fontenhance','blackwhite', + 'interface','localpath','localres') { + $FORM{$_}=~s/[\n\r\=]//gs; + } +# --------------------------------------------------------- Write first profile + + { + my $idf=Apache::File->new(">$lonids/$cookie.id"); + unless (flock($idf,LOCK_EX)) { + &Apache::lonnet::logthis("WARNING: ". + 'Could not obtain exclusive lock in lonauth: '.$!); + $idf->close(); + return 'error: '.$!; + } + if ($userenv ne '') { print $idf "$userenv\n"; } + print $idf "user.name=$username\n"; + print $idf "user.domain=$domain\n"; + print $idf "user.home=$authhost\n"; + print $idf "browser.type=$clientbrowser\n"; + print $idf "browser.version=$clientversion\n"; + print $idf "browser.mathml=$clientmathml\n"; + print $idf "browser.unicode=$clientunicode\n"; + print $idf "browser.os=$clientos\n"; + if ($FORM{'localpath'}) { + print $idf "browser.localpath=$FORM{'localpath'}\n"; + print $idf "browser.localres=$FORM{'localres'}\n"; } + print $idf "request.course.fn=\n"; + print $idf "request.course.uri=\n"; + print $idf "request.course.sec=\n"; + print $idf "request.role=cm\n"; + print $idf "request.role.adv=$ENV{'user.adv'}\n"; + print $idf "request.host=$ENV{'REMOTE_ADDR'}\n"; + if ($FORM{'interface'}) { + $FORM{'interface'}=~s/\W//gs; + print $idf "browser.interface=$FORM{'interface'}\n"; + $ENV{'browser.interface'}=$FORM{'interface'}; + foreach ('imagesuppress','appletsuppress', + 'embedsuppress','fontenhance','blackwhite') { + if (($FORM{$_} eq 'true') || + ($userenv{$_} eq 'on')) { + print $idf "browser.$_=on\n"; + } + } + } + if ($userroles ne '') { print $idf "$userroles"; } + $idf->close(); } + $ENV{'request.role'}='cm'; + $ENV{'request.role.adv'}=$ENV{'user.adv'}; + $ENV{'browser.type'}=$clientbrowser; +# -------------------------------------------------------------------- Log this + + &Apache::lonnet::log($domain,$username,$authhost, + "Login $ENV{'REMOTE_ADDR'}"); + +# ------------------------------------------------- Check for critical messages + + my @what=&Apache::lonnet::dump('critical',$domain,$username); + if ($what[0]) { + if (($what[0] ne 'con_lost') && ($what[0]!~/^error\:/)) { + $lowerurl='/adm/email?critical=display'; + } + } + +# ------------------------------------------------------------ Get cookie ready + $cookie="lonID=$cookie; path=/"; +# -------------------------------------------------------- Menu script and info + my $windowinfo=&Apache::lonmenu::open($clientos); + my $startupremote=&Apache::lonmenu::startupremote($lowerurl); + my $setflags=&Apache::lonmenu::setflags(); + my $maincall=&Apache::lonmenu::maincall(); + my $bodytag=&Apache::loncommon::bodytag('Successful Login'); +# ------------------------------------------------- Output for successful login + $r->send_cgi_header(<print(< -Successful Login to the LearningOnline Network +Successful Login to the LearningOnline Network with CAPA +$startupremote - - - - +$bodytag +$setflags +$windowinfo +

Welcome!

+Welcome to the LearningOnline Network with CAPA. +Please wait while your session +is being set up.

+Problems?

+$maincall + ENDSUCCESS } @@ -54,6 +214,7 @@ ENDSUCCESS sub failed { my ($r,$message) = @_; + my $bodytag=&Apache::loncommon::bodytag('Unsuccessful Login'); $r->send_cgi_header(<print(< -Unsuccessful Login to the LearningOnline Network +Unsuccessful Login to the LearningOnline Network with CAPA - +$bodytag

Sorry ...

-

$message to use the LearningOnline Network

+

$message

+

Please log in again.

+

+Problems?

ENDFAILED @@ -78,46 +242,84 @@ sub handler { my $r = shift; my $buffer; - $r->read($buffer,$r->header_in('Content-length')); + $r->read($buffer,$r->header_in('Content-length'),0); my @pairs=split(/&/,$buffer); - my $pair; my $name; my $value; my %FORM; + my $pair; my $name; my $value; + undef %FORM; + %FORM=(); foreach $pair (@pairs) { ($name,$value) = split(/=/,$pair); + $value =~ tr/+/ /; + $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; $FORM{$name}=$value; } if ((!$FORM{'uname'}) || (!$FORM{'upass'}) || (!$FORM{'udom'})) { - failed($r,'Username, password and domain need to be specified'); + failed($r,'Username, password and domain need to be specified.'); return OK; } $FORM{'uname'} =~ s/\W//g; - $FORM{'upass'} =~ s/\W//g; $FORM{'udom'} =~ s/\W//g; my $role = $r->dir_config('lonRole'); my $domain = $r->dir_config('lonDefDomain'); my $prodir = $r->dir_config('lonUsersDir'); +# ---------------------------------------- Get the information from login token + + my $tmpinfo=Apache::lonnet::reply('tmpget:'.$FORM{'logtoken'}, + $FORM{'serverid'}); + + if (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost')) { + failed($r,'Information needed to verify your login information is missing, inaccessible or expired.'); + return OK; + } else { + unless (&Apache::lonnet::reply('tmpdel:'.$FORM{'logtoken'}, + $FORM{'serverid'}) eq 'ok') { + &failed($r,'Session could not be opened.'); + } + } + my ($key,$firsturl)=split(/&/,$tmpinfo); + + my $keybin=pack("H16",$key); + + my $cipher; + if ($Crypt::DES::VERSION>=2.03) { + $cipher=new Crypt::DES $keybin; + } + else { + $cipher=new DES $keybin; + } + + my $upass=$cipher->decrypt( + unpack("a8",pack("H16",substr($FORM{'upass'},0,16)))); + + $upass.=$cipher->decrypt( + unpack("a8",pack("H16",substr($FORM{'upass'},16,16)))); + + $upass=substr($upass,1,ord(substr($upass,0,1))); + # ---------------------------------------------------------------- Authenticate my $authhost=Apache::lonnet::authenticate($FORM{'uname'}, - $FORM{'upass'}, + $upass, $FORM{'udom'}); # --------------------------------------------------------------------- Failed? if ($authhost eq 'no_host') { - failed($r,'Username and/or password could not be authenticated'); + failed($r,'Username and/or password could not be authenticated.'); return OK; } - my %cookies=CGI::Cookie->parse($r->header_in('Cookie')); - my $lonurl=$cookies{'lonURL'}; - if (!$lonurl) { failed($r,'Cookies need to be activated'); return OK; } - my $lowerurl=$lonurl->value; + if (($firsturl eq '') || ($firsturl eq '/adm/logout')) { + $firsturl='/adm/roles'; + } - success($r,$lowerurl,$FORM{'uname'},$FORM{'udom'},$authhost); + success($r,$FORM{'uname'},$FORM{'udom'},$authhost,$firsturl); return OK; } 1; __END__ + +