[LON-CAPA-cvs] cvs: rat / lonuserstate.pm loncom/auth lonauth.pm switchserver.pm loncom/interface lontiny.pm

raeburn raeburn at source.lon-capa.org
Tue Aug 10 11:28:14 EDT 2021


raeburn		Tue Aug 10 15:28:14 2021 EDT

  Modified files:              
    /loncom/auth	lonauth.pm switchserver.pm 
    /loncom/interface	lontiny.pm 
    /rat	lonuserstate.pm 
  Log:
  - Bug 6907
    - Deep-linking when user has an existing LON-CAPA session, need to support
      case where role change is not needed, but course session update needed to
      enforce link protection (lti-based or key-based access control).
  
  
-------------- next part --------------
Index: loncom/auth/lonauth.pm
diff -u loncom/auth/lonauth.pm:1.165 loncom/auth/lonauth.pm:1.166
--- loncom/auth/lonauth.pm:1.165	Mon Aug  9 15:36:28 2021
+++ loncom/auth/lonauth.pm	Tue Aug 10 15:28:13 2021
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # User Authentication Module
 #
-# $Id: lonauth.pm,v 1.165 2021/08/09 15:36:28 raeburn Exp $
+# $Id: lonauth.pm,v 1.166 2021/08/10 15:28:13 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -386,18 +386,17 @@
             &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
 	    &Apache::loncommon::content_type($r,'text/html');
 	    $r->send_http_header;
-	    my $start_page = 
+	    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 = $env{'form.firsturl'};
-                if (($env{'form.firsturl'} =~ m{^/tiny/$match_domain/\w+$}) &&
-                    ($env{'request.course.id'})) {
+                if (($dest =~ m{^/tiny/$match_domain/\w+$}) && ($env{'request.course.id'})) {
                     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
                     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
-                    my $symb = &Apache::loncommon::symb_from_tinyurl($env{'form.firsturl'},$cnum,$cdom);
+                    my $symb = &Apache::loncommon::symb_from_tinyurl($dest,$cnum,$cdom);
                     if ($symb) {
                         my $buffer;
                         if ($r->header_in('Content-length') > 0) {
@@ -801,11 +800,24 @@
                               'user.linkproturi'   => $uri};
             }
         } elsif ($form{'linkkey'}) {
-            $extra_env = {'user.deeplinkkey' => $form{'linkkey'},
+            $extra_env = {'user.deeplinkkey'  => $form{'linkkey'},
                           'user.keyedlinkuri' => $form{'firsturl'}};
         }
         if ($form{'firsturl'} =~ m{^/tiny/$match_domain/\w+$}) {
             &set_deeplink_login(%form);
+            if ($form{'linkprot'}) {
+                if (ref($extra_env) eq 'HASH') {
+                    %{$extra_env} = ( %{$extra_env}, 'request.linkprot' => $form{'linkprot'} );
+                } else {
+                    $extra_env = {'request.linkprot' => $form{'linkprot'}};
+                }
+            } elsif ($form{'linkkey'}) {
+                if (ref($extra_env) eq 'HASH') {
+                    %{$extra_env} = ( %{$extra_env}, 'request.linkkey' => $form{'linkkey'} );
+                } else {
+                    $extra_env = {'request.linkkey' => $form{'linkkey'}};
+                }
+            }
             if ($env{'request.deeplink.login'}) {
                 if (ref($extra_env) eq 'HASH') {
                     %{$extra_env} = ( %{$extra_env}, 'request.deeplink.login' => $form{'firsturl'} );
@@ -826,24 +838,36 @@
         my $cdom = $1;
         my ($cnum,$symb) = &Apache::loncommon::symb_from_tinyurl($form{'firsturl'},'',$cdom);
         if ($symb) {
-            my $disallow;
-            my $deeplink = &Apache::lonnet::EXT("resource.0.deeplink",$symb);
-            if ($deeplink ne '') {
-                my ($state,$others,$listed,$scope,$protect) = split(/,/,$deeplink);
-                if (($protect ne 'none') && ($protect ne '')) {
-                    my ($acctype,$item) = split(/:/,$protect);
-                    if (($acctype eq 'ltic') || ($acctype eq 'ltid')) {
-                         unless ($form{'linkprot'} eq $protect) {
-                             $disallow = 1;
-                         }
-                    } elsif ($acctype eq 'key') {
-                        unless ($form{'linkkey'} eq $item) {
-                            $disallow = 1;
+            if ($env{'request.course.id'} eq $cdom.'_'.$cnum) {
+                my ($disallow,$deeplink);
+                if ($symb =~ /\.(page|sequence)$/) {
+                    my $mapname = &Apache::lonnet::deversion((&Apache::lonnet::decode_symb($symb))[2]);
+                    my $navmap = Apache::lonnavmaps::navmap->new();
+                    if (ref($navmap)) {
+                        $deeplink = $navmap->get_mapparam(undef,$mapname,'0.deeplink');
+                    }
+                } else {
+                    $deeplink = &Apache::lonnet::EXT('resource.0.deeplink',$symb);
+                }
+                if ($deeplink ne '') {
+                    my ($state,$others,$listed,$scope,$protect) = split(/,/,$deeplink);
+                    if (($protect ne 'none') && ($protect ne '')) {
+                        my ($acctype,$item) = split(/:/,$protect);
+                        if ($acctype =~ /lti(c|d)$/) {
+                            unless ($form{'linkprot'} eq $item.$1.':'.$env{'request.deeplink.login'}) {
+                                $disallow = 1;
+                            }
+                        } elsif ($acctype eq 'key') {
+                            unless ($form{'linkkey'} eq $item) {
+                                $disallow = 1;
+                            }
                         }
                     }
                 }
-            }
-            unless ($disallow) {
+                unless ($disallow) {
+                    $env{'request.deeplink.login'} = $form{'firsturl'};
+                }
+            } else {
                 $env{'request.deeplink.login'} = $form{'firsturl'};
             }
         }
Index: loncom/auth/switchserver.pm
diff -u loncom/auth/switchserver.pm:1.56 loncom/auth/switchserver.pm:1.57
--- loncom/auth/switchserver.pm:1.56	Sun Jun 27 17:25:47 2021
+++ loncom/auth/switchserver.pm	Tue Aug 10 15:28:13 2021
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Switch Servers Handler
 #
-# $Id: switchserver.pm,v 1.56 2021/06/27 17:25:47 raeburn Exp $
+# $Id: switchserver.pm,v 1.57 2021/08/10 15:28:13 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -314,12 +314,11 @@
     }
     if ($env{'request.linkprot'}) {
         $info{'linkprot'} = $env{'request.linkprot'};
+    } elsif ($env{'request.linkkey'}) {
+        $info{'linkkey'} = $env{'request.linkkey'};
     }
     if ($env{'request.deeplink.login'}) {
         $info{'deeplink.login'} = $env{'request.deeplink.login'};
-        if ($env{'request.linkkey'}) {
-            $info{'linkkey'} = $env{'request.linkkey'};
-        }
     }
     if ($env{'request.lti.login'}) {
         $info{'lti.login'} = $env{'request.lti.login'};
Index: loncom/interface/lontiny.pm
diff -u loncom/interface/lontiny.pm:1.6 loncom/interface/lontiny.pm:1.7
--- loncom/interface/lontiny.pm:1.6	Sun Jan 27 15:44:18 2019
+++ loncom/interface/lontiny.pm	Tue Aug 10 15:28:14 2021
@@ -2,7 +2,7 @@
 # Extract domain, courseID, and symb from a shortened URL,
 # and switch role to a role in designated course.
 #
-# $Id: lontiny.pm,v 1.6 2019/01/27 15:44:18 raeburn Exp $
+# $Id: lontiny.pm,v 1.7 2021/08/10 15:28:14 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -67,6 +67,8 @@
                     if ($cnum =~ /^$match_courseid$/) {
                         my $chome = &Apache::lonnet::homeserver($cnum,$cdom);
                         if ($chome ne 'no_host') {
+                            # Check for ltoken or linkkey
+                            my $newlauncher = &launch_check($r->uri,$symb,$cnum,$cdom);
                             if ($env{'request.course.id'} eq $cdom.'_'.$cnum) {
                                 my ($map,$resid,$url) = &Apache::lonnet::decode_symb($symb);
                                 if (&Apache::lonnet::is_on_map($url)) {
@@ -96,24 +98,28 @@
                                     }
                                     my $update;
                                     # Check if course needs to be re-initialized
-                                    my $loncaparev = $r->dir_config('lonVersion');
-                                    my ($result, at reinit) = &Apache::loncommon::needs_coursereinit($loncaparev);
-                                    if ($result eq 'update') {
+                                    if ($newlauncher) {
                                         $update = 1;
-                                    } elsif (!-e $env{'request.course.fn'}.'.db') {
-                                        $update = 1;
-                                    } elsif (!$env{'request.role.adv'}) {
-                                        my $navmap = Apache::lonnavmaps::navmap->new();
-                                        if (ref($navmap)) {
-                                            my $res = $navmap->getBySymb($symb);
-                                            if (ref($res)) {
-                                                my ($enc_in_bighash,$enc_in_parm);
-                                                $enc_in_bighash = $res->encrypted();
-                                                if (&Apache::lonnet::EXT('resource.0.encrypturl',$symb) =~ /^yes$/i) {
-                                                    $enc_in_parm = 1;
-                                                }
-                                                if ($enc_in_bighash ne $enc_in_parm) {
-                                                    $update = 1;
+                                    } else {
+                                        my $loncaparev = $r->dir_config('lonVersion');
+                                        my ($result, at reinit) = &Apache::loncommon::needs_coursereinit($loncaparev);
+                                        if ($result eq 'update') {
+                                            $update = 1;
+                                        } elsif (!-e $env{'request.course.fn'}.'.db') {
+                                            $update = 1;
+                                        } elsif (!$env{'request.role.adv'}) {
+                                            my $navmap = Apache::lonnavmaps::navmap->new();
+                                            if (ref($navmap)) {
+                                                my $res = $navmap->getBySymb($symb);
+                                                if (ref($res)) {
+                                                    my ($enc_in_bighash,$enc_in_parm);
+                                                    $enc_in_bighash = $res->encrypted();
+                                                    if (&Apache::lonnet::EXT('resource.0.encrypturl',$symb) =~ /^yes$/i) {
+                                                        $enc_in_parm = 1;
+                                                    }
+                                                    if ($enc_in_bighash ne $enc_in_parm) {
+                                                        $update = 1;
+                                                    }
                                                 }
                                             }
                                         }
@@ -236,6 +242,118 @@
     }
 }
 
+sub launch_check {
+    my ($linkuri,$symb,$cnum,$cdom) = @_;
+    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['ltoken','linkkey']);
+    my ($linkprotector,$linkproturi,$linkkey,$newlauncher);
+    if ($env{'form.ltoken'}) {
+        my %link_info = &Apache::lonnet::tmpget($env{'form.ltoken'});
+        &Apache::lonnet::tmpdel($env{'form.ltoken'});
+        delete($env{'form.ltoken'});
+        if ($link_info{'linkprot'}) {
+            ($linkprotector,$linkproturi) = split(/:/,$link_info{'linkprot'},2);
+            if ($env{'user.linkprotector'}) {
+                my @protectors = split(/,/,$env{'user.linkprotector'});
+                unless (grep(/^\Q$linkprotector\E$/, at protectors)) {
+                    push(@protectors,$linkprotector);
+                    @protectors = sort { $a <=> $b } @protectors;
+                    &Apache::lonnet::appenv({'user.linkprotector' => join(',', at protectors)});
+                }
+            } else {
+                &Apache::lonnet::appenv({'user.linkprotector' => $linkprotector });
+            }
+            if ($env{'user.linkproturi'}) {
+                my @proturis = split(/,/,$env{'user.linkproturi'});
+                unless(grep(/^\Q$linkproturi\E$/, at proturis)) {
+                    push(@proturis,$linkproturi);
+                    @proturis = sort(@proturis);
+                    &Apache::lonnet::appenv({'user.linkproturi' => join(',', at proturis)});
+                }
+            } else {
+                &Apache::lonnet::appenv({'user.linkproturi' => $linkproturi});
+            }
+        }
+    } elsif ($env{'form.linkkey'}) {
+        $linkkey = $env{'form.linkkey'};
+        my $keyedlinkuri = $linkuri;
+        if ($env{'user.deeplinkkey'}) {
+            my @linkkeys = split(/,/,$env{'user.deeplinkkey'});
+            unless (grep(/^\Q$linkkey\E$/, at linkkeys)) {
+                push(@linkkeys,$linkkey);
+                &Apache::lonnet::appenv({'user.deeplinkkey' => join(',',sort(@linkkeys))});
+            }
+        } else {
+            &Apache::lonnet::appenv({'user.deeplinkkey' => $linkkey});
+        }
+        if ($env{'user.keyedlinkuri'}) {
+            my @keyeduris = split(/,/,$env{'user.keyedlinkuri'});
+            unless (grep(/^\Q$keyedlinkuri\E$/, at keyeduris)) {
+                push(@keyeduris,$keyedlinkuri);
+                &Apache::lonnet::appenv({'user.keyedlinkuri' => join(',',sort(@keyeduris))});
+            }
+        } else {
+            &Apache::lonnet::appenv({'user.keyedlinkuri' => $keyedlinkuri});
+        }
+        delete($env{'form.linkkey'});
+    }
+    if ($env{'request.course.id'} eq $cdom.'_'.$cnum) {
+        my $currdeeplinklogin = $env{'request.deeplink.login'};
+        if ($linkprotector || $linkkey) {
+            my $deeplink;
+            if ($symb =~ /\.(page|sequence)$/) {
+                my $mapname = &Apache::lonnet::deversion((&Apache::lonnet::decode_symb($symb))[2]);
+                my $navmap = Apache::lonnavmaps::navmap->new();
+                if (ref($navmap)) {
+                    $deeplink = $navmap->get_mapparam(undef,$mapname,'0.deeplink');
+                }
+            } else {
+                $deeplink = &Apache::lonnet::EXT('resource.0.deeplink',$symb);
+            }
+            if ($deeplink ne '') {
+                my $disallow;
+                my ($state,$others,$listed,$scope,$protect) = split(/,/,$deeplink);
+                if (($protect ne 'none') && ($protect ne '')) {
+                    my ($acctype,$item) = split(/:/,$protect);
+                    if ($acctype =~ /lti(c|d)$/) {
+                        unless ($linkprotector.':'.$linkproturi eq $item.$1.':'.$linkuri) {
+                            $disallow = 1;
+                        }
+                    } elsif ($acctype eq 'key') {
+                        unless ($linkkey eq $item) {
+                            $disallow = 1;
+                        }
+                    }
+                }
+                if ($disallow) {
+                    if ($currdeeplinklogin eq $linkuri) {
+                        &Apache::lonnet::delenv('request.deeplink.login');
+                    }
+                } else {
+                    unless ($currdeeplinklogin eq $linkuri) {
+                        if ($linkprotector) {
+                            &Apache::lonnet::appenv({'request.linkprot' => $linkprotector.':'.$linkproturi});
+                        } elsif ($linkkey) {
+                            &Apache::lonnet::appenv({'request.linkkey' => $linkkey});
+                        }
+                        $newlauncher = 1;
+                    }
+                    &Apache::lonnet::appenv({'request.deeplink.login' => $linkuri});
+                }
+            }
+        } else {
+            &Apache::lonnet::appenv({'request.deeplink.login' => $linkuri});
+        }
+    } else {
+        &Apache::lonnet::appenv({'request.deeplink.login' => $linkuri});
+        if ($linkprotector) {
+            &Apache::lonnet::appenv({'request.linkprot' => $linkprotector.':'.$linkproturi});
+        } elsif ($linkkey) {
+            &Apache::lonnet::appenv({'request.linkkey' => $linkkey});
+        }
+    }
+    return $newlauncher;
+}
+
 sub do_redirect {
     my ($r,$destination) = @_;
     my $windowname = 'loncapaclient';
Index: rat/lonuserstate.pm
diff -u rat/lonuserstate.pm:1.165 rat/lonuserstate.pm:1.166
--- rat/lonuserstate.pm:1.165	Fri Aug  6 01:27:04 2021
+++ rat/lonuserstate.pm	Tue Aug 10 15:28:14 2021
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Construct and maintain state and binary representation of course for user
 #
-# $Id: lonuserstate.pm,v 1.165 2021/08/06 01:27:04 raeburn Exp $
+# $Id: lonuserstate.pm,v 1.166 2021/08/10 15:28:14 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1616,47 +1616,64 @@
                 $deeplink = $hash{'deeplinkonly_'.$loginrid};
             }
             if ($deeplink) {
+                my $disallow;
                 my ($state,$others,$listed,$scope,$protect) = split(/,/,$deeplink);
-                if ($others eq 'hide') {
-                    my @recfolders;
-                    if ($scope eq 'rec') {
-                        foreach my $key (keys(%hash)) {
-                            if ($key=~/^map_hierarchy_(\d+)$/) {
-                                my $mpc = $1;
-                                my @ids = split(/,/,$hash{$key});
-                                if (grep(/^$deeplink_login_pc$/, at ids)) {
-                                    my $idx;
-                                    foreach my $mapid (@ids) {
-                                        if ($idx) {
-                                            push(@recfolders,$mapid);
-                                        } elsif ($mapid == $deeplink_login_pc) {
-                                            push(@recfolders,$mapid);
-                                            $idx = $mapid;
+                if (($protect ne 'none') && ($protect ne '')) {
+                    my ($acctype,$item) = split(/:/,$protect);
+                    if ($acctype =~ /lti(c|d)$/) {
+                        unless ($env{'request.linkprot'} eq $item.$1.':'.$env{'request.deeplink.login'}) {
+                            $disallow = 1;
+                        }
+                    } elsif ($acctype eq 'key') {
+                        unless ($env{'request.linkkey'} eq $item) {
+                            $disallow = 1;
+                        }
+                    }
+                }
+                if ($disallow) {
+                    &Apache::lonnet::delenv('request.deeplink.login');
+                } else {
+                    if ($others eq 'hide') {
+                        my @recfolders;
+                        if ($scope eq 'rec') {
+                            foreach my $key (keys(%hash)) {
+                                if ($key=~/^map_hierarchy_(\d+)$/) {
+                                    my $mpc = $1;
+                                    my @ids = split(/,/,$hash{$key});
+                                    if (grep(/^$deeplink_login_pc$/, at ids)) {
+                                        my $idx;
+                                        foreach my $mapid (@ids) {
+                                            if ($idx) {
+                                                push(@recfolders,$mapid);
+                                            } elsif ($mapid == $deeplink_login_pc) {
+                                                push(@recfolders,$mapid);
+                                                $idx = $mapid;
+                                            }
                                         }
+                                        push(@recfolders,$mpc);
                                     }
-                                    push(@recfolders,$mpc);
                                 }
                             }
                         }
-                    }
-                    foreach my $key (keys(%hash)) {
-                        if ($key=~/^src_(.+)$/) {
-                            my $rid = $1;
-                            next if ($rid eq '0.0');
-                            next if ($rid eq $loginrid);
-                            if ($scope ne 'res') {
-                                my $mapid = (split(/\./,$rid))[0];
-                                next if ($mapid eq $deeplink_login_pc);
-                                if ($scope eq 'rec') {
-                                    next if (grep(/^$mapid$/, at recfolders));
+                        foreach my $key (keys(%hash)) {
+                            if ($key=~/^src_(.+)$/) {
+                                my $rid = $1;
+                                next if ($rid eq '0.0');
+                                next if ($rid eq $loginrid);
+                                if ($scope ne 'res') {
+                                    my $mapid = (split(/\./,$rid))[0];
+                                    next if ($mapid eq $deeplink_login_pc);
+                                    if ($scope eq 'rec') {
+                                        next if (grep(/^$mapid$/, at recfolders));
+                                    }
                                 }
+                                $deeplinkout{$rid} = 1;
                             }
-                            $deeplinkout{$rid} = 1;
                         }
                     }
                 }
+                &deeplinkouts();
             }
-            &deeplinkouts();
         }
     }
     &mapcrumbs();


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