--- loncom/auth/lonacc.pm 2013/01/30 16:23:47 1.142 +++ loncom/auth/lonacc.pm 2021/05/04 18:47:37 1.190 @@ -1,7 +1,7 @@ # The LearningOnline Network # Cookie Based Access Handler # -# $Id: lonacc.pm,v 1.142 2013/01/30 16:23:47 raeburn Exp $ +# $Id: lonacc.pm,v 1.190 2021/05/04 18:47:37 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -89,8 +89,6 @@ store attempted access =head1 NOTABLE SUBROUTINES -=over - =cut @@ -103,7 +101,8 @@ use Apache::lonnet; use Apache::loncommon(); use Apache::lonlocal; use Apache::restrictedaccess(); -use Apache::blockedaccess(); +use Apache::blockedaccess(); +use Apache::lonprotected(); use Fcntl qw(:flock); use LONCAPA qw(:DEFAULT :match); @@ -111,7 +110,6 @@ sub cleanup { my ($r)=@_; if (! $r->is_initial_req()) { return DECLINED; } &Apache::lonnet::save_cache(); - &Apache::lontexconvert::jsMath_reset(); return OK; } @@ -162,6 +160,8 @@ sub get_posted_cgi { if (length($value) == 1) { $value=~s/[\r\n]$//; } + } elsif ($fname =~ /\.(xls|doc|ppt)(x|m)$/i) { + $value=~s/[\r\n]$//; } if (ref($fields) eq 'ARRAY') { next if (!grep(/^\Q$name\E$/,@{$fields})); @@ -203,6 +203,14 @@ sub get_posted_cgi { $fname=''; $fmime=''; } + if ($i<$#lines && $lines[$i+1]=~/^Content\-Type\:\s*([\w\-\/]+)/i) { + # TODO: something with $1 ! + $i++; + } + if ($i<$#lines && $lines[$i+1]=~/^Content\-transfer\-encoding\:\s*([\w\-\/]+)/i) { + # TODO: something with $1 ! + $i++; + } $i++; } } else { @@ -230,6 +238,8 @@ sub get_posted_cgi { =pod +=over + =item upload_size_allowed() Perform size checks for file uploads to essayresponse items in course context. @@ -264,30 +274,38 @@ sub upload_size_allowed { =item sso_login() handle the case of the single sign on user, at this point $r->user - will be set and valid now need to find the loncapa user info and possibly - balance them - returns OK if it was a SSO and user was handled - undef if not SSO or no means to hanle the user + will be set and valid; now need to find the loncapa user info, and possibly + balance them. If $r->user() is set this means either it was either set by + SSO or by checkauthen.pm, if a valid cookie was found. The latter case can + be identified by the third arg ($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(). + + returns OK if it was SSO and user was handled. + returns undef if not SSO or no means to handle the user. =cut sub sso_login { - my ($r,$handle) = @_; + my ($r,$handle,$username) = @_; - my $lonidsdir=$r->dir_config('lonIDsDir'); - if (!($r->user - && (!defined($env{'user.name'}) && !defined($env{'user.domain'})) - && ($handle eq ''))) { + 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'); + my @items = ('role','symb','iptoken'); &Apache::loncommon::get_unprocessed_cgi($query,\@items); foreach my $item (@items) { if (defined($env{'form.'.$item})) { @@ -296,6 +314,15 @@ sub sso_login { } } + my %sessiondata; + if ($form{'iptoken'}) { + %sessiondata = &Apache::lonnet::tmpget($form{'iptoken'}); + my $delete = &Apache::lonnet::tmpdel($form{'iptoken'}); + unless ($sessiondata{'sessionserver'}) { + delete($form{'iptoken'}); + } + } + my $domain = $r->dir_config('lonSSOUserDomain'); if ($domain eq '') { $domain = $r->dir_config('lonDefDomain'); @@ -303,12 +330,48 @@ sub sso_login { 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,$otherserver) = - &Apache::lonnet::check_loadbalancing($user,$domain); - if ($is_balancer) { + my ($is_balancer,$otherserver,$hosthere); + if ($form{'iptoken'}) { + if (($sessiondata{'domain'} eq $domain) && + ($sessiondata{'username'} eq $user)) { + $hosthere = 1; + } + } + unless ($hosthere) { + ($is_balancer,$otherserver) = + &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) && (!$hosthere)) { # login but immediately go to switch server to find us a new # machine &Apache::lonauth::success($r,$user,$domain,$home,'noredirect'); + foreach my $item (keys(%form)) { + $env{'form.'.$item} = $form{$item}; + } + unless ($form{'symb'}) { + unless (($r->uri eq '/adm/roles') || ($r->uri eq '/adm/sso')) { + $env{'form.origurl'} = $r->uri; + } + } $env{'request.sso.login'} = 1; if (defined($r->dir_config("lonSSOReloginServer"))) { $env{'request.sso.reloginserver'} = @@ -323,17 +386,23 @@ sub sso_login { } else { # need to login them in, so generate the need data that # migrate expects to do login - my %info=('ip' => $r->connection->remote_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 $item ('role','symb','iptoken') { if (exists($form{$item})) { $info{$item} = $form{$item}; } } + unless ($info{'symb'}) { + unless (($r->uri eq '/adm/roles') || ($r->uri eq '/adm/sso')) { + $info{'origurl'} = $r->uri; + } + } if ($r->dir_config("ssodirecturl") == 1) { $info{'origurl'} = $r->uri; } @@ -341,6 +410,9 @@ sub sso_login { $info{'sso.reloginserver'} = $r->dir_config('lonSSOReloginServer'); } + if (($is_balancer) && ($hosthere)) { + $info{'noloadbalance'} = $hosthere; + } my $token = &Apache::lonnet::tmpput(\%info, $r->dir_config('lonHostID')); @@ -349,10 +421,8 @@ sub sso_login { $r->set_handlers('PerlHandler'=> undef); } return OK; - } elsif (defined($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); @@ -366,13 +436,18 @@ 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)) { + $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; } @@ -380,26 +455,33 @@ sub sso_login { sub handler { my $r = shift; my $requrl=$r->uri; - if (&Apache::lonnet::is_domainimage($requrl)) { + + if ($requrl =~ m{^/res/adm/pages/[^/]+\.(gif|png)$}) { return OK; } - if ($requrl =~ m{^/res/adm/pages/[^/]+\.(gif|png)$}) { + if (&Apache::lonnet::is_domainimage($requrl)) { return OK; } - my $handle = &Apache::lonnet::check_for_valid_session($r); + my %user; + my $handle = &Apache::lonnet::check_for_valid_session($r,undef,\%user); - my $result = &sso_login($r,$handle); - if (defined($result)) { - return $result; + unless (($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) { + my $result = &sso_login($r,$handle,$user{'name'}); + if (defined($result)) { + return $result; + } } my ($is_balancer,$otherserver); if ($handle eq '') { - unless (($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) { - $r->log_reason("Cookie $handle not valid", $r->filename); + unless ((($requrl eq '/adm/switchserver') && (!$r->is_initial_req())) || + ($requrl =~ m{^/public/$match_domain/$match_courseid/syllabus}) || + ($requrl =~ m{^/adm/help/}) || + ($requrl =~ m{^/res/$match_domain/$match_username/})) { + $r->log_reason("Cookie not valid", $r->filename); } } elsif ($handle ne '') { @@ -429,14 +511,14 @@ 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')) { @@ -450,9 +532,13 @@ 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/$cnum/syllabus$}))) { + ($requrl eq "/public/$cdom/$cnum/syllabus") || + ($requrl =~ m{^/adm/$cdom/$cnum/\d+/ext\.tool$}))) { my $query = $r->args; if ($query) { foreach my $pair (split(/&/,$query)) { @@ -461,9 +547,25 @@ 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 $exphostname = &Apache::lonnet::hostname($lonhost); + my $expected = $Apache::lonnet::protocol{$lonhost}.'://'.$hostname; + unless ($actual eq $expected) { + $env{'request.use_absolute'} = $expected; + } + } } # -------------------------------------------------------- Load POST parameters @@ -474,27 +576,133 @@ sub handler { my $checkexempt; if ($env{'user.loadbalexempt'} eq $r->dir_config('lonHostID')) { if ($env{'user.loadbalcheck.time'} + 600 > time) { - $checkexempt = 1; + $checkexempt = 1; } } - unless ($checkexempt) { + if ($env{'user.noloadbalance'} eq $r->dir_config('lonHostID')) { + $checkexempt = 1; + } + unless (($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 ($env{'user.name'} eq 'public' && + $env{'user.domain'} eq 'public') { + $env{'request.firsturl'}=$requrl; + return FORBIDDEN; + } else { + 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($poss_symb); + } + } + } + if ($poss_symb) { + $access=&Apache::lonnet::allowed('bre',$requrl,$poss_symb); + } else { + $access=&Apache::lonnet::allowed('bre',$requrl,'','','','',1); + } + } else { + $access=&Apache::lonnet::allowed('bre',$requrl); + } + } + 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; @@ -504,9 +712,18 @@ 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); @@ -522,6 +739,12 @@ 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; @@ -548,7 +771,7 @@ 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; @@ -557,16 +780,8 @@ 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) { @@ -574,17 +789,42 @@ 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 { @@ -598,24 +838,72 @@ 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); + $symb=&Apache::lonnet::symbread($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 @@ -630,6 +918,15 @@ sub handler { } } } + } elsif ($requrl =~ m{^/+uploaded/\Q$cdom\E/\Q$cnum\E/portfolio/syllabus/.+\.html?$}) { + if (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) { + if ($query) { + &Apache::loncommon::get_unprocessed_cgi($query,['forceedit','editmode']); + if (($env{'form.forceedit'}) || ($env{'form.editmode'})) { + $env{'request.state'} = 'edit'; + } + } + } } } return OK; @@ -651,7 +948,8 @@ sub handler { } # ------------------------------------ See if this is a viewable portfolio file if (&Apache::lonnet::is_portfolio_url($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;