--- loncom/auth/lonacc.pm 2014/01/04 23:21:22 1.151 +++ loncom/auth/lonacc.pm 2023/01/23 00:32:03 1.159.2.21.2.4 @@ -1,7 +1,7 @@ # The LearningOnline Network # Cookie Based Access Handler # -# $Id: lonacc.pm,v 1.151 2014/01/04 23:21:22 raeburn Exp $ +# $Id: lonacc.pm,v 1.159.2.21.2.4 2023/01/23 00:32:03 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -102,6 +102,7 @@ use Apache::loncommon(); use Apache::lonlocal; use Apache::restrictedaccess(); use Apache::blockedaccess(); +use Apache::lonprotected(); use Fcntl qw(:flock); use LONCAPA qw(:DEFAULT :match); @@ -109,7 +110,6 @@ sub cleanup { my ($r)=@_; if (! $r->is_initial_req()) { return DECLINED; } &Apache::lonnet::save_cache(); - &Apache::lontexconvert::jsMath_reset(); return OK; } @@ -161,6 +161,9 @@ sub get_posted_cgi { $value=~s/[\r\n]$//; } } + if ($fname =~ /\.(xls|doc|ppt)(x|m)$/i) { + $value=~s/[\r\n]$//; + } if (ref($fields) eq 'ARRAY') { next if (!grep(/^\Q$name\E$/,@{$fields})); } @@ -270,30 +273,42 @@ sub upload_size_allowed { be identified by the third arg ($usename), except when lonacc is called in an internal redirect to /adm/switchserver (e.g., load-balancing following successful authentication) -- no cookie set yet. For that particular case - simply skip the call to sso_login(). + simply skip the call to sso_login(). returns OK if it was SSO and user was handled. returns undef if not SSO or no means to handle the user. + + In the case where the session was started from /adm/launch/tiny/$domain/$id, + i.e., for a protected link, with launch from another CMS, and user information + is accepted from the LTI payload, then, if the user has privileged roles, + authentication will be required. If SSO authentication is with a username + and/or domain that differ from the username in the LTI payload and domain + in the launch URL, then $r->user() will be unset and /adm/relaunch will be + called. =cut sub sso_login { my ($r,$handle,$username) = @_; - my $lonidsdir=$r->dir_config('lonIDsDir'); - if (($r->user eq '') || ($username ne '') || + if (($r->user eq '') || ($username ne '') || ($r->user eq 'public:public') || (defined($env{'user.name'}) && (defined($env{'user.domain'})) && ($handle ne ''))) { # not an SSO case or already logged in return undef; } - my ($user) = ($r->user =~ m/([a-zA-Z0-9_\-@.]*)/); + my ($user) = ($r->user =~ m/^($match_username)$/); + if ($user eq '') { + return undef; + } my $query = $r->args; my %form; if ($query) { - my @items = ('role','symb','iptoken'); + + my @items = ('role','symb','iptoken','origurl','ttoken', + 'ltoken','linkkey','logtoken','sso','lcssowin'); &Apache::loncommon::get_unprocessed_cgi($query,\@items); foreach my $item (@items) { if (defined($env{'form.'.$item})) { @@ -305,32 +320,227 @@ sub sso_login { my %sessiondata; if ($form{'iptoken'}) { %sessiondata = &Apache::lonnet::tmpget($form{'iptoken'}); - my $delete = &Apache::lonnet::tmpdel($form{'token'}); + my $delete = &Apache::lonnet::tmpdel($form{'iptoken'}); + unless ($sessiondata{'sessionserver'}) { + delete($form{'iptoken'}); + } + } + + my ($linkprot,$linkprotuser,$linkprotexit,$linkkey,$deeplinkurl); + +# +# If Shibboleth auth is in use, and a dual SSO and non-SSO login page +# is in use, then the query string will contain the logtoken item with +# a value set to the name of a .tmp file in /home/httpd/perl/tmp +# containing the url to display after authentication, and also, +# optionally, role and symb, or linkprot or linkkey (deep-link access). +# +# If Shibboleth auth is in use, but a dual log-in page is not in use, +# and the originally requested URL was /tiny/$domain/$id (i.e., +# for deeplinking), then the query string will contain the sso item +# with a value set to the name of a .tmp file in /home/httpd/perl/tmp +# containing the url to display after authentication, and also, +# optionally, linkprot or linkkey (deep-link access). +# +# Otherwise the query string may contain role and symb, or if the +# originally requested URL was /tiny/$domain/$id (i.e. for deeplinking) +# then the query string may contain a ttoken item with a value set +# to the name of a .tmp file in /home/httpd/perl/tmp containing either +# linkprot or linkkey (deep-link access). +# +# If deep-linked, i.e., the originally requested URL was /tiny/$domain/$id +# the linkkey may have originally been sent in POSTed data, which will +# have been processed in lontrans.pm +# + + if ($form{'ttoken'}) { + my %info = &Apache::lonnet::tmpget($form{'ttoken'}); + &Apache::lonnet::tmpdel($form{'ttoken'}); + if ($info{'origurl'}) { + $form{'origurl'} = $info{'origurl'}; + if ($form{'origurl'} =~ m{^/tiny/$match_domain/\w+$}) { + $deeplinkurl = $form{'origurl'}; + } + } + if ($info{'linkprot'}) { + $linkprot = $info{'linkprot'}; + $linkprotuser = $info{'linkprotuser'}; + $linkprotexit = $info{'linkprotexit'}; + } elsif ($info{'linkkey'} ne '') { + $linkkey = $info{'linkkey'}; + } + } elsif ($form{'logtoken'}) { + my ($firsturl,@rest); + my $lonhost = $r->dir_config('lonHostID'); + my $tmpinfo = &Apache::lonnet::reply('tmpget:'.$form{'logtoken'},$lonhost); + my $delete = &Apache::lonnet::tmpdel($form{'logtoken'}); + unless (($tmpinfo=~/^error/) || ($tmpinfo eq 'con_lost') || + ($tmpinfo eq 'no_such_host')) { + (undef,$firsturl,@rest) = split(/&/,$tmpinfo); + if ($firsturl ne '') { + $firsturl = &unescape($firsturl); + } + foreach my $item (@rest) { + my ($key,$value) = split(/=/,$item); + $form{$key} = &unescape($value); + } + if ($firsturl =~ m{^/tiny/$match_domain/\w+$}) { + $form{'origurl'} = $firsturl; + $deeplinkurl = $firsturl; + } elsif ($firsturl eq '/adm/email') { + $form{'origurl'} = $firsturl; + } + if ($form{'linkprot'}) { + $linkprot = $form{'linkprot'}; + $linkprotuser = $form{'linkprotuser'}; + $linkprotexit = $form{'linkprotexit'}; + } elsif ($form{'linkkey'} ne '') { + $linkkey = $form{'linkkey'}; + } + if ($form{'iptoken'}) { + %sessiondata = &Apache::lonnet::tmpget($form{'iptoken'}); + my $delete = &Apache::lonnet::tmpdel($form{'iptoken'}); + } + } + } elsif ($form{'sso'}) { + my $lonhost = $r->dir_config('lonHostID'); + my $info = &Apache::lonnet::reply('tmpget:'.$form{'sso'},$lonhost); + &Apache::lonnet::tmpdel($form{'sso'}); + unless (($info=~/^error/) || ($info eq 'con_lost') || + ($info eq 'no_such_host')) { + my ($firsturl,@rest)=split(/\&/,$info); + if ($firsturl ne '') { + $form{'origurl'} = &unescape($firsturl); + if ($form{'origurl'} =~ m{^/tiny/$match_domain/\w+$}) { + $deeplinkurl = $form{'origurl'}; + } + } + foreach my $item (@rest) { + my ($key,$value) = split(/=/,$item); + $form{$key} = &unescape($value); + } + if ($form{'linkprot'}) { + $linkprot = $form{'linkprot'}; + $linkprotuser = $form{'linkprotuser'}; + $linkprotexit = $form{'linkprotexit'}; + } elsif ($form{'linkkey'} ne '') { + $linkkey = $form{'linkkey'}; + } + } + } elsif ($form{'ltoken'}) { + my %link_info = &Apache::lonnet::tmpget($form{'ltoken'}); + $linkprot = $link_info{'linkprot'}; + if ($linkprot) { + if ($link_info{'linkprotuser'} ne '') { + $linkprotuser = $link_info{'linkprotuser'}; + } + if ($link_info{'linkprotexit'} ne '') { + $linkprotexit = $link_info{'linkprotexit'}; + } + } + my $delete = &Apache::lonnet::tmpdel($form{'ltoken'}); + delete($form{'ltoken'}); + if ($form{'origurl'} =~ m{^/tiny/$match_domain/\w+$}) { + $deeplinkurl = $form{'origurl'}; + } + } elsif ($form{'linkkey'} ne '') { + $linkkey = $form{'linkkey'}; } my $domain = $r->dir_config('lonSSOUserDomain'); if ($domain eq '') { $domain = $r->dir_config('lonDefDomain'); } + if (($deeplinkurl) && ($linkprot) && ($linkprotuser ne '')) { + unless ($linkprotuser eq $user.':'.$domain) { + $r->user(); + my %data = ( + origurl => $deeplinkurl, + linkprot => $linkprot, + linkprotuser => $linkprotuser, + linkprotexit => $linkprotexit, + ); + if ($env{'form.lcssowin'}) { + $data{'lcssowin'} = $env{'form.lcssowin'}; + } + my $token = &Apache::lonnet::tmpput(\%data,$r->dir_config('lonHostID'),'link'); + unless (($token eq 'con_lost') || ($token eq 'refused') || ($token =~ /^error:/) || + ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) { + $r->internal_redirect('/adm/relaunch?rtoken='.$token); + $r->set_handlers('PerlHandler'=> undef); + return OK; + } + } + } my $home=&Apache::lonnet::homeserver($user,$domain); if ($home !~ /(con_lost|no_host|no_such_host)/) { &Apache::lonnet::logthis(" SSO authorized user $user "); my ($is_balancer,$otherserver,$hosthere); if ($form{'iptoken'}) { - if (($sessiondata{'domain'} eq $form{'udom'}) && - ($sessiondata{'username'} eq $form{'uname'})) { + if (($sessiondata{'domain'} eq $domain) && + ($sessiondata{'username'} eq $user)) { $hosthere = 1; } } unless ($hosthere) { ($is_balancer,$otherserver) = - &Apache::lonnet::check_loadbalancing($user,$domain); + &Apache::lonnet::check_loadbalancing($user,$domain,'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$domain\E_\Q$user\E_/)) { + $otherserver = $found_server; + } elsif ($otherserver eq '') { + my $lowest_load; + ($otherserver,undef,undef,undef,$lowest_load) = &Apache::lonnet::choose_server($domain); + if ($lowest_load > 100) { + $otherserver = &Apache::lonnet::spareserver($r,$lowest_load,$lowest_load,1,$domain); + } + if ($otherserver ne '') { + my @hosts = &Apache::lonnet::current_machine_ids(); + if (grep(/^\Q$otherserver\E$/,@hosts)) { + $hosthere = $otherserver; + } + } + } + } } - - if ($is_balancer) { + if (($is_balancer) && (!$hosthere)) { # login but immediately go to switch server to find us a new # machine &Apache::lonauth::success($r,$user,$domain,$home,'noredirect'); + foreach my $item (keys(%form)) { + $env{'form.'.$item} = $form{$item}; + } + unless (($form{'symb'}) || ($form{'origurl'})) { + unless (($r->uri eq '/adm/roles') || ($r->uri eq '/adm/sso')) { + $env{'form.origurl'} = $r->uri; + } + } + if (($r->uri eq '/adm/sso') && ($form{'origurl'} =~ m{^/+tiny/+$match_domain/+\w+$})) { + $env{'request.deeplink.login'} = $form{'origurl'}; + } elsif ($r->uri =~ m{^/+tiny/+$match_domain/+\w+$}) { + $env{'request.deeplink.login'} = $r->uri; + } + if ($env{'request.deeplink.login'}) { + if ($linkprot) { + $env{'request.linkprot'} = $linkprot; + if ($linkprotuser ne '') { + $env{'request.linkprotuser'} = $linkprotuser; + } + if ($linkprotexit ne '') { + $env{'request.linkprotexit'} = $linkprotexit; + } + } elsif ($linkkey ne '') { + $env{'request.linkkey'} = $linkkey; + } + } + if (($r->uri eq '/adm/sso') && ($form{'origurl'} eq '/adm/email')) { + if ($form{'display'} && ($env{'form.mailrecip'} eq $user.':'.$domain)) { + $env{'request.display'} = $form{'display'}; + $env{'request.mailrecip'} = $env{'form.mailrecip'}; + } + } $env{'request.sso.login'} = 1; if (defined($r->dir_config("lonSSOReloginServer"))) { $env{'request.sso.reloginserver'} = @@ -340,35 +550,57 @@ sub sso_login { if ($otherserver ne '') { $redirecturl .= '?otherserver='.$otherserver; } + if ($form{'lcssowin'}) { + $redirecturl .= (($redirecturl=~/\?/)?'&':'?') . 'lcssowin=1'; + } $r->internal_redirect($redirecturl); $r->set_handlers('PerlHandler'=> undef); } else { # need to login them in, so generate the need data that # migrate expects to do login - my $ip; - my $c = $r->connection; - eval { - $ip = $c->remote_ip(); - }; - if ($@) { - $ip = $c->client_ip(); - } + my $ip = &Apache::lonnet::get_requestor_ip($r); my %info=('ip' => $ip, 'domain' => $domain, 'username' => $user, 'server' => $r->dir_config('lonHostID'), 'sso.login' => 1 ); - foreach my $item ('role','symb') { + foreach my $item ('role','symb','iptoken','origurl','lcssowin') { if (exists($form{$item})) { $info{$item} = $form{$item}; + } elsif ($sessiondata{$item} ne '') { + $info{$item} = $sessiondata{$item}; } } - unless ($info{'symb'}) { - unless ($r->uri eq '/adm/roles') { + unless (($info{'symb'}) || ($info{'origurl'})) { + unless (($r->uri eq '/adm/roles') || ($r->uri eq '/adm/sso')) { $info{'origurl'} = $r->uri; } } + if (($r->uri eq '/adm/sso') && ($form{'origurl'} =~ m{^/+tiny/+$match_domain/+\w+$})) { + $info{'deeplink.login'} = $form{'origurl'}; + } elsif ($r->uri =~ m{^/+tiny/+$match_domain/+\w+$}) { + $info{'deeplink.login'} = $r->uri; + } + if ($info{'deeplink.login'}) { + if ($linkprot) { + $info{'linkprot'} = $linkprot; + if ($linkprotuser ne '') { + $info{'linkprotuser'} = $linkprotuser; + } + if ($linkprotexit ne '') { + $info{'linkprotexit'} = $linkprotexit; + } + } elsif ($linkkey ne '') { + $info{'linkkey'} = $linkkey; + } + } + if (($r->uri eq '/adm/sso') && ($form{'origurl'} eq '/adm/email')) { + if ($form{'display'} && ($form{'mailrecip'} eq $user.':'.$domain)) { + $info{'display'} = &escape($form{'display'}); + $info{'mailrecip'} = &escape($form{'mailrecip'}); + } + } if ($r->dir_config("ssodirecturl") == 1) { $info{'origurl'} = $r->uri; } @@ -376,18 +608,17 @@ sub sso_login { $info{'sso.reloginserver'} = $r->dir_config('lonSSOReloginServer'); } - my $token = - &Apache::lonnet::tmpput(\%info, - $r->dir_config('lonHostID')); + if (($is_balancer) && ($hosthere)) { + $info{'noloadbalance'} = $hosthere; + } + my $token = &Apache::lonnet::tmpput(\%info,$r->dir_config('lonHostID'),'sso'); $env{'form.token'} = $token; $r->internal_redirect('/adm/migrateuser'); $r->set_handlers('PerlHandler'=> undef); } return OK; - } elsif (defined($r->dir_config('lonSSOUserUnknownRedirect'))) { + } else { &Apache::lonnet::logthis(" SSO authorized unknown user $user "); - $r->subprocess_env->set('SSOUserUnknown' => $user); - $r->subprocess_env->set('SSOUserDomain' => $domain); my @cancreate; my %domconfig = &Apache::lonnet::get_dom('configuration',['usercreation'],$domain); @@ -401,13 +632,20 @@ sub sso_login { } } } - if (grep(/^sso$/,@cancreate)) { - $r->internal_redirect('/adm/createaccount'); - } else { - $r->internal_redirect($r->dir_config('lonSSOUserUnknownRedirect')); + if ((grep(/^sso$/,@cancreate)) || (defined($r->dir_config('lonSSOUserUnknownRedirect')))) { + $r->subprocess_env->set('SSOUserUnknown' => $user); + $r->subprocess_env->set('SSOUserDomain' => $domain); + if (grep(/^sso$/,@cancreate)) { +#FIXME - need to preserve origurl, role and symb, or linkprot or linkkey for use after account +# creation. If lcssowin is 1, createaccount needs to close pop-up and display in main window. + $r->set_handlers('PerlHandler'=> [\&Apache::createaccount::handler]); + $r->handler('perl-script'); + } else { + $r->internal_redirect($r->dir_config('lonSSOUserUnknownRedirect')); + $r->set_handlers('PerlHandler'=> undef); + } + return OK; } - $r->set_handlers('PerlHandler'=> undef); - return OK; } return undef; } @@ -437,7 +675,10 @@ sub handler { my ($is_balancer,$otherserver); if ($handle eq '') { - unless (($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) { + unless ((($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) || + ($requrl =~ m{^/public/$match_domain/$match_courseid/syllabus}) || + ($requrl =~ m{^/adm/help/}) || ($requrl eq '/adm/sso') || + ($requrl =~ m{^/res/$match_domain/$match_username/})) { $r->log_reason("Cookie not valid", $r->filename); } } elsif ($handle ne '') { @@ -468,14 +709,14 @@ sub handler { } $env{'request.filename'} = $r->filename; $env{'request.noversionuri'} = &Apache::lonnet::deversion($requrl); - my $suppext; + my ($suppext,$checkabsolute); if ($requrl =~ m{^/adm/wrapper/ext/}) { my $query = $r->args; if ($query) { my $preserved; foreach my $pair (split(/&/,$query)) { my ($name, $value) = split(/=/,$pair); - unless ($name eq 'symb') { + unless (($name eq 'symb') || ($name eq 'usehttp')) { $preserved .= $pair.'&'; } if (($env{'request.course.id'}) && ($name eq 'folderpath')) { @@ -489,6 +730,9 @@ sub handler { $env{'request.external.querystring'} = $preserved; } } + if ($env{'request.course.id'}) { + $checkabsolute = 1; + } } elsif ($env{'request.course.id'} && (($requrl =~ m{^/adm/$match_domain/$match_username/aboutme$}) || ($requrl =~ m{^/public/$cdom/$cnum/syllabus$}))) { @@ -500,9 +744,24 @@ sub handler { if ($value =~ /^supplemental/) { $suppext = 1; } + last; } } } + if ($requrl =~ m{^/public/$cdom/$cnum/syllabus$}) { + $checkabsolute = 1; + } + } + if ($checkabsolute) { + my $hostname = $r->hostname(); + my $lonhost = &Apache::lonnet::host_from_dns($hostname); + if ($lonhost) { + my $actual = &Apache::lonnet::absolute_url($hostname,1,1); + my $expected = $Apache::lonnet::protocol{$lonhost}.'://'.$hostname; + unless ($actual eq $expected) { + $env{'request.use_absolute'} = $expected; + } + } } # -------------------------------------------------------- Load POST parameters @@ -513,30 +772,190 @@ sub handler { my $checkexempt; if ($env{'user.loadbalexempt'} eq $r->dir_config('lonHostID')) { if ($env{'user.loadbalcheck.time'} + 600 > time) { - $checkexempt = 1; + $checkexempt = 1; } } if ($env{'user.noloadbalance'} eq $r->dir_config('lonHostID')) { $checkexempt = 1; } - unless ($checkexempt) { + unless (($checkexempt) || (($requrl eq '/adm/switchserver') && (!$r->is_initial_req()))) { ($is_balancer,$otherserver) = &Apache::lonnet::check_loadbalancing($env{'user.name'}, $env{'user.domain'}); + if ($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 = $found_server; + } + unless ($requrl eq '/adm/switchserver') { + $r->set_handlers('PerlResponseHandler'=> + [\&Apache::switchserver::handler]); + } + if ($otherserver ne '') { + $env{'form.otherserver'} = $otherserver; + } + unless (($env{'form.origurl'}) || ($r->uri eq '/adm/roles') || + ($r->uri eq '/adm/switchserver') || ($r->uri eq '/adm/sso')) { + $env{'form.origurl'} = $r->uri; + } + } } - if ($is_balancer) { - $r->set_handlers('PerlResponseHandler'=> - [\&Apache::switchserver::handler]); - if ($otherserver ne '') { - $env{'form.otherserver'} = $otherserver; + if ($requrl=~m{^/+tiny/+$match_domain/+\w+$}) { + if ($r->args) { + &Apache::loncommon::get_unprocessed_cgi($r->args,['ttoken']); + if (defined($env{'form.ttoken'})) { + my %info = &Apache::lonnet::tmpget($env{'form.ttoken'}); + if (($info{'origurl'} ne '') && ($info{'origurl'} eq $requrl)) { + my %data; + if (($info{'linkprotuser'} ne '') && ($info{'linkprot'}) && + ($info{'linkprotuser'} ne $env{'user.name'}.':'.$env{'user.domain'})) { + %data = ( + origurl => $requrl, + linkprot => $info{'linkprot'}, + linkprotuser => $info{'linkprotuser'}, + linkprotexit => $info{'linkprotexit'}, + ); + } elsif ($info{'ltoken'} ne '') { + my %ltoken_info = &Apache::lonnet::tmpget($info{'ltoken'}); + if (($ltoken_info{'linkprotuser'} ne '') && ($ltoken_info{'linkprot'}) && + ($ltoken_info{'linkprotuser'} ne $env{'user.name'}.':'.$env{'user.domain'})) { + %data = ( + origurl => $requrl, + linkprot => $ltoken_info{'linkprot'}, + linkprotuser => $ltoken_info{'linkprotuser'}, + linkprotexit => $ltoken_info{'linkprotexit'}, + ); + } + } + if (keys(%data)) { + my $delete = &Apache::lonnet::tmpdel($env{'form.ttoken'}); + if ($info{'ltoken'} ne '') { + my $delete = &Apache::lonnet::tmpdel($info{'ltoken'}); + } + my $token = + &Apache::lonnet::tmpput(\%data,$r->dir_config('lonHostID'),'retry'); + unless (($token eq 'con_lost') || ($token eq 'refused') || ($token =~ /^error:/) || + ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) { + $r->internal_redirect('/adm/relaunch?rtoken='.$token); + $r->set_handlers('PerlHandler'=> undef); + return OK; + } + } + } + } + } + if ($env{'user.name'} eq 'public' && + $env{'user.domain'} eq 'public') { + $env{'request.firsturl'}=$requrl; + return FORBIDDEN; } + return OK; } - # ---------------------------------------------------------------- Check access my $now = time; - if ($requrl !~ m{^/(?:adm|public|prtspool)/} + my ($check_symb,$check_access,$check_block,$access,$poss_symb); + if ($requrl !~ m{^/(?:adm|public|(?:prt|zip)spool)/} || $requrl =~ /^\/adm\/.*\/(smppg|bulletinboard)(\?|$ )/x) { - my $access=&Apache::lonnet::allowed('bre',$requrl); + $check_access = 1; + } + if ((!$check_access) && ($env{'request.course.id'})) { + if (($requrl eq '/adm/viewclasslist') || + ($requrl =~ m{^(/adm/wrapper|)\Q/uploaded/$cdom/$cnum/docs/\E}) || + ($requrl =~ m{^/adm/.*/aboutme$}) || + ($requrl=~m{^/adm/coursedocs/showdoc/}) || + ($requrl=~m{^(/adm/wrapper|)/adm/$cdom/$cnum/\d+/ext\.tool$})) { + $check_block = 1; + } + } + if (($env{'request.course.id'}) && (!$suppext)) { + $requrl=~/\.(\w+)$/; + if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') || + ($requrl=~/^\/adm\/.*\/(aboutme|smppg|bulletinboard)(\?|$ )/x) || + ($requrl=~/^\/adm\/wrapper\//) || + ($requrl=~m|^/adm/coursedocs/showdoc/|) || + ($requrl=~m|\.problem/smpedit$|) || + ($requrl=~/^\/public\/.*\/syllabus$/) || + ($requrl=~/^\/adm\/(viewclasslist|navmaps)$/) || + ($requrl=~/^\/adm\/.*\/aboutme\/portfolio(\?|$)/) || + ($requrl=~m{^/adm/$cdom/$cnum/\d+/ext\.tool$})) { + $check_symb = 1; + } + } + if (($check_access) || ($check_block)) { + if ($check_symb) { + if ($env{'form.symb'}) { + $poss_symb=&Apache::lonnet::symbclean($env{'form.symb'}); + } elsif (($env{'request.course.id'}) && ($r->args ne '')) { + my $query = $r->args; + foreach my $pair (split(/&/,$query)) { + my ($name, $value) = split(/=/,$pair); + $name = &unescape($name); + $value =~ tr/+/ /; + $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg; + if ($name eq 'symb') { + $poss_symb = &Apache::lonnet::symbclean($value); + last; + } + } + } + if ($poss_symb) { + my ($possmap,$resid,$url)=&Apache::lonnet::decode_symb($poss_symb); + $url = &Apache::lonnet::clutter($url); + my $toplevelmap = $env{'course.'.$env{'request.course.id'}.'.url'}; + unless (($url eq $requrl) && (($possmap eq $toplevelmap) || + (&Apache::lonnet::is_on_map($possmap)))) { + undef($poss_symb); + } + if ($poss_symb) { + if ((!$env{'request.role.adv'}) && ($env{'acc.randomout'}) && + ($env{'acc.randomout'}=~/\&\Q$poss_symb\E\&/)) { + undef($poss_symb); + } elsif ((!$env{'request.role.adv'}) && ($env{'acc.deeplinkout'}) && + ($env{'acc.deeplinkout'}=~/\&\Q$poss_symb\E\&/)) { + undef($poss_symb); + } + } + } + if ($poss_symb) { + $access=&Apache::lonnet::allowed('bre',$requrl,$poss_symb); + } else { + $access=&Apache::lonnet::allowed('bre',$requrl,'','','','',1); + } + } else { + my $nodeeplinkcheck; + if (($check_access) && ($requrl =~ /\.(sequence|page)$/)) { + unless ($env{'form.navmap'}) { + if ($r->args ne '') { + &Apache::loncommon::get_unprocessed_cgi($r->args,['navmap']); + unless ($env{'form.navmap'}) { + $nodeeplinkcheck = 1; + } + } + } + } + my $clientip = &Apache::lonnet::get_requestor_ip($r); + $access=&Apache::lonnet::allowed('bre',$requrl,'','',$clientip,'','',$nodeeplinkcheck); + } + } + if ($check_block) { + if ($access eq 'B') { + if ($poss_symb) { + if (&Apache::lonnet::symbverify($poss_symb,$requrl)) { + $env{'request.symb'} = $poss_symb; + } + } + &Apache::blockedaccess::setup_handler($r); + return OK; + } + } elsif ($check_access) { + if ($handle eq '') { + unless ($access eq 'F') { + if ($requrl =~ m{^/res/$match_domain/$match_username/}) { + $r->log_reason("Cookie not valid", $r->filename); + } + } + } if ($access eq '1') { $env{'user.error.msg'}="$requrl:bre:0:0:Choose Course"; return HTTP_NOT_ACCEPTABLE; @@ -546,9 +965,18 @@ sub handler { return OK; } if ($access eq 'B') { + if ($poss_symb) { + if (&Apache::lonnet::symbverify($poss_symb,$requrl)) { + $env{'request.symb'} = $poss_symb; + } + } &Apache::blockedaccess::setup_handler($r); return OK; } + if ($access eq 'D') { + &Apache::lonprotected::setup_handler($r); + return OK; + } if (($access ne '2') && ($access ne 'F')) { if ($requrl =~ m{^/res/}) { $access = &Apache::lonnet::allowed('bro',$requrl); @@ -564,6 +992,12 @@ sub handler { return HTTP_NOT_ACCEPTABLE; } } + } elsif (($handle =~ /^publicuser_\d+$/) && (&Apache::lonnet::is_portfolio_url($requrl))) { + my $clientip = &Apache::lonnet::get_requestor_ip($r); + if (&Apache::lonnet::allowed('bre',$requrl,undef,undef,$clientip) ne 'F') { + $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied"; + return HTTP_NOT_ACCEPTABLE; + } } else { $env{'user.error.msg'}="$requrl:bre:1:1:Access Denied"; return HTTP_NOT_ACCEPTABLE; @@ -590,7 +1024,7 @@ sub handler { $env{'user.domain'} eq 'public' && $requrl !~ m{^/+(res|public|uploaded)/} && $requrl !~ m{^/adm/[^/]+/[^/]+/aboutme/portfolio$ }x && - $requrl !~ m{^/adm/blockingstatus/.*$} && + $requrl !~ m{^/adm/blockingstatus/.*$} && $requrl !~ m{^/+adm/(help|logout|restrictedaccess|randomlabel\.png)}) { $env{'request.querystring'}=$r->args; $env{'request.firsturl'}=$requrl; @@ -599,16 +1033,8 @@ sub handler { # ------------------------------------------------------------- This is allowed if ($env{'request.course.id'}) { &Apache::lonnet::countacc($requrl); - $requrl=~/\.(\w+)$/; my $query=$r->args; - if ((&Apache::loncommon::fileembstyle($1) eq 'ssi') || - ($requrl=~/^\/adm\/.*\/(aboutme|smppg|bulletinboard)(\?|$ )/x) || - ($requrl=~/^\/adm\/wrapper\//) || - ($requrl=~m|^/adm/coursedocs/showdoc/|) || - ($requrl=~m|\.problem/smpedit$|) || - ($requrl=~/^\/public\/.*\/syllabus$/) || - ($requrl=~/^\/adm\/(viewclasslist|navmaps)$/) || - ($requrl=~/^\/adm\/.*\/aboutme\/portfolio(\?|$)/)) { + if ($check_symb) { # ------------------------------------- This is serious stuff, get symb and log my $symb; if ($query) { @@ -616,17 +1042,42 @@ sub handler { } if ($env{'form.symb'}) { $symb=&Apache::lonnet::symbclean($env{'form.symb'}); - if ($requrl =~ m|^/adm/wrapper/| - || $requrl =~ m|^/adm/coursedocs/showdoc/|) { - my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb); - &Apache::lonnet::symblist($map,$murl => [$murl,$mid], - 'last_known' =>[$murl,$mid]); + if (($requrl eq '/adm/navmaps') || + ($requrl =~ m{^/adm/wrapper/}) || + ($requrl =~ m{^/adm/coursedocs/showdoc/})) { + unless (&Apache::lonnet::symbverify($symb,$requrl)) { + if (&Apache::lonnet::is_on_map($requrl)) { + $symb = &Apache::lonnet::symbread($requrl); + unless (&Apache::lonnet::symbverify($symb,$requrl)) { + undef($symb); + } + } + } + if ($symb) { + if ($requrl eq '/adm/navmaps') { + my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb); + &Apache::lonnet::symblist($map,$murl => [$murl,$mid]); + } elsif (($requrl =~ m{^/adm/wrapper/}) || + ($requrl =~ m{^/adm/coursedocs/showdoc/})) { + my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb); + if ($map =~ /\.page$/) { + my $mapsymb = &Apache::lonnet::symbread($map); + ($map,$mid,$murl)=&Apache::lonnet::decode_symb($mapsymb); + } + &Apache::lonnet::symblist($map,$murl => [$murl,$mid], + 'last_known' =>[$murl,$mid]); + } + } } elsif ((&Apache::lonnet::symbverify($symb,$requrl)) || (($requrl=~m|(.*)/smpedit$|) && &Apache::lonnet::symbverify($symb,$1)) || (($requrl=~m|(.*/aboutme)/portfolio$|) && &Apache::lonnet::symbverify($symb,$1))) { my ($map,$mid,$murl)=&Apache::lonnet::decode_symb($symb); + if (($map =~ /\.page$/) && ($requrl !~ /\.page$/)) { + my $mapsymb = &Apache::lonnet::symbread($map); + ($map,$mid,$murl)=&Apache::lonnet::decode_symb($mapsymb); + } &Apache::lonnet::symblist($map,$murl => [$murl,$mid], 'last_known' =>[$murl,$mid]); } else { @@ -640,24 +1091,72 @@ sub handler { if ($requrl=~m{^(/adm/.*/aboutme)/portfolio$}) { $requrl = $1; } - unless ($suppext) { - $symb=&Apache::lonnet::symbread($requrl); - if (&Apache::lonnet::is_on_map($requrl) && $symb && - !&Apache::lonnet::symbverify($symb,$requrl)) { - $r->log_reason('Invalid symb for '.$requrl.': '.$symb); - $env{'user.error.msg'}= - "$requrl:bre:1:1:Invalid Access"; - return HTTP_NOT_ACCEPTABLE; - } - if ($symb) { - my ($map,$mid,$murl)= - &Apache::lonnet::decode_symb($symb); - &Apache::lonnet::symblist($map,$murl =>[$murl,$mid], - 'last_known' =>[$murl,$mid]); - } + $symb=&Apache::lonnet::symbread($requrl); + if (&Apache::lonnet::is_on_map($requrl) && $symb) { + my ($encstate,$invalidsymb); + unless (&Apache::lonnet::symbverify($symb,$requrl,\$encstate)) { + $invalidsymb = 1; + # + # If $env{'request.enc'} inconsistent with encryption expected for $symb + # retrieved by lonnet::symbread(), call again to check for an instance of + # $requrl in the course for which expected encryption matches request.enc. + # If symb for different instance passes lonnet::symbverify(), use that as + # the symb for $requrl and call &Apache::lonnet::allowed() for that symb. + # Report invalid symb if there is no other symb. Redirect to /adm/ambiguous + # if multiple possible symbs consistent with request.enc available for $requrl. + # + if (($env{'request.enc'} && !$encstate) || (!$env{'request.enc'} && $encstate)) { + my %possibles; + my $nocache = 1; + my $oldsymb = $symb; + $symb = &Apache::lonnet::symbread($requrl,'','','',\%possibles,$nocache); + if (($symb) && ($symb ne $oldsymb)) { + if (&Apache::lonnet::symbverify($symb,$requrl)) { + my $access=&Apache::lonnet::allowed('bre',$requrl,$symb); + if ($access eq 'B') { + $env{'request.symb'} = $symb; + &Apache::blockedaccess::setup_handler($r); + return OK; + } elsif (($access eq '2') || ($access eq 'F')) { + $invalidsymb = ''; + } + } + } elsif (keys(%possibles) > 1) { + $r->internal_redirect('/adm/ambiguous'); + return OK; + } + } + if ($invalidsymb) { + if ($requrl eq '/adm/navmaps') { + undef($symb); + } else { + $r->log_reason('Invalid symb for '.$requrl.': '.$symb); + $env{'user.error.msg'}= + "$requrl:bre:1:1:Invalid Access"; + return HTTP_NOT_ACCEPTABLE; + } + } + } + } + if ($symb) { + my ($map,$mid,$murl)= + &Apache::lonnet::decode_symb($symb); + if ($requrl eq '/adm/navmaps') { + &Apache::lonnet::symblist($map,$murl =>[$murl,$mid]); + } else { + if (($map =~ /\.page$/) && ($requrl !~ /\.page$/)) { + my $mapsymb = &Apache::lonnet::symbread($map); + ($map,$mid,$murl)=&Apache::lonnet::decode_symb($mapsymb); + } + &Apache::lonnet::symblist($map,$murl =>[$murl,$mid], + 'last_known' =>[$murl,$mid]); + } } } $env{'request.symb'}=$symb; + if (($env{'request.symbread.cached.'}) && ($env{'request.symbread.cached.'} ne $symb)) { + $env{'request.symbread.cached.'} = $symb; + } &Apache::lonnet::courseacclog($symb); } else { # ------------------------------------------------------- This is other content @@ -702,7 +1201,8 @@ sub handler { } # ------------------------------------ See if this is a viewable portfolio file if (&Apache::lonnet::is_portfolio_url($requrl)) { - my $access=&Apache::lonnet::allowed('bre',$requrl); + my $clientip = &Apache::lonnet::get_requestor_ip($r); + my $access=&Apache::lonnet::allowed('bre',$requrl,undef,undef,$clientip); if ($access eq 'A') { &Apache::restrictedaccess::setup_handler($r); return OK;