--- rat/lonpageflip.pm 2015/03/23 12:49:10 1.80.8.8
+++ rat/lonpageflip.pm 2021/12/14 21:34:45 1.80.8.13
@@ -2,7 +2,7 @@
#
# Page flip handler
#
-# $Id: lonpageflip.pm,v 1.80.8.8 2015/03/23 12:49:10 raeburn Exp $
+# $Id: lonpageflip.pm,v 1.80.8.13 2021/12/14 21:34:45 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -83,11 +83,18 @@ sub hash_src {
my ($mapid,$resid)=split(/\./,$id);
my $symb=&Apache::lonnet::encode_symb($hash{'map_id_'.$mapid},
$resid,$hash{'src_'.$id});
+ my $anchor;
+ if ($hash{'ext_'.$id} eq 'true:') {
+ if ($hash{'src_'.$id} =~ /(\#.+)$/) {
+ $anchor = $1;
+ }
+ }
if ($hash{'encrypted_'.$id}) {
return (&Apache::lonenc::encrypted($hash{'src_'.$id}),
- &Apache::lonenc::encrypted($symb));
+ &Apache::lonenc::encrypted($symb),
+ $hash{'encrypted_'.$id},$anchor);
}
- return ($hash{'src_'.$id},$symb);
+ return ($hash{'src_'.$id},$symb,$hash{'encrypted_'.$id},$anchor);
}
sub move {
@@ -224,9 +231,13 @@ sub first_accessible_resource {
if (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'.db',
&GDBM_READER(),0640)) {
$furl=$hash{'first_url'};
- my %args;
- my ($url,$args) = split(/\?/,$furl);
- foreach my $pair (split(/\&/,$args)) {
+ my (%args,$url,$argstr);
+ if ($furl =~ m{^/enc/}) {
+ ($url,$argstr) = split(/\?/,&Apache::lonenc::unencrypted($furl));
+ } else {
+ ($url,$argstr) = split(/\?/,$furl);
+ }
+ foreach my $pair (split(/\&/,$argstr)) {
my ($name,$value) = split(/=/,$pair);
$args{&unescape($name)} = &unescape($value);
}
@@ -234,13 +245,17 @@ sub first_accessible_resource {
# Wow, we cannot see this ... move forward to the next one that we can see
my ($newrid,$newmap)=&move($hash{'first_rid'},$hash{'first_mapurl'},'forward');
# Build the new URL
- my ($newmapid,$newresid)=split(/\./,$newrid);
- my $symb=&Apache::lonnet::encode_symb($newmap,$newresid,$hash{'src_'.$newrid});
- $furl=&add_get_param($hash{'src_'.$newrid},{ 'symb' => $symb });
- if ($hash{'encrypted_'.$newrid}) {
- $furl=&Apache::lonenc::encrypted($furl);
+ if ($newrid eq '') {
+ $furl = '/adm/navmaps';
+ } else {
+ my ($newmapid,$newresid)=split(/\./,$newrid);
+ my $symb=&Apache::lonnet::encode_symb($newmap,$newresid,$hash{'src_'.$newrid});
+ $furl=&add_get_param($hash{'src_'.$newrid},{ 'symb' => $symb });
+ if ($hash{'encrypted_'.$newrid}) {
+ $furl=&Apache::lonenc::encrypted($furl);
+ }
}
- }
+ }
untie(%hash);
return $furl;
} else {
@@ -248,6 +263,56 @@ sub first_accessible_resource {
}
}
+sub check_http_req {
+ my ($srcref,$hostname) = @_;
+ return unless (ref($srcref) eq 'SCALAR');
+ my $usehttp;
+ if ($env{'request.course.id'}) {
+ my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
+ my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
+ if (($$srcref =~ m{^\Q/public/$cdom/$cnum/syllabus\E($|\?)}) &&
+ ($ENV{'SERVER_PORT'} == 443) &&
+ ($env{'course.'.$env{'request.course.id'}.'.externalsyllabus'} =~ m{^http://})) {
+ unless ((&Apache::lonnet::uses_sts()) ||
+ (&Apache::lonnet::waf_allssl($hostname))) {
+ $$srcref .= (($$srcref =~/\?/)? '&':'?') . 'usehttp=1';
+ $usehttp = 1;
+ }
+ } elsif (($$srcref =~ m{^\Q/adm/wrapper/ext/\E(?!https:)}) &&
+ ($ENV{'SERVER_PORT'} == 443)) {
+ unless ((&Apache::lonnet::uses_sts()) ||
+ (&Apache::lonnet::waf_allssl($hostname))) {
+ my ($url,$anchor) = ($$srcref =~ /^([^\#]+)(?:|(\#[^\#]+))$/);
+ $$srcref = $url . (($$srcref =~/\?/)? '&':'?') . 'usehttp=1' .$anchor;
+ $usehttp = 1;
+ }
+ }
+ }
+ return $usehttp;
+}
+
+sub reinited_js {
+ my ($url,$cid,$timeout) = @_;
+ if (!$timeout) {
+ $timeout = 0;
+ }
+ return <<"END";
+
+END
+}
+
# ================================================================ Main Handler
sub handler {
@@ -264,8 +329,10 @@ sub handler {
my %cachehash=();
my $multichoice=0;
my %multichoicehash=();
- my ($redirecturl,$redirectsymb);
+ my %prog_state=();
+ my ($redirecturl,$redirectsymb,$enc,$anchor);
my $next='';
+ my $hostname = $r->hostname();
my @possibilities=();
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['postdata']);
if (($env{'form.postdata'})&&($env{'request.course.fn'})) {
@@ -304,8 +371,20 @@ sub handler {
untie(%hash);
}
}
+ &Apache::loncommon::content_type($r,'text/html');
+ $r->send_http_header;
+ $r->print(&Apache::loncommon::start_page('Content Changed'));
+ my $preamble = '
'.
+ '
'.
+ &mt('Your course session is being updated because of recent changes by course personnel.').
+ ' '.&mt('Please be patient').'.
'.
+ '';
+ %prog_state = &Apache::lonhtmlcommon::Create_PrgWin($r,undef,$preamble);
+ &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,&mt('Updating course'));
my ($furl,$ferr) = &Apache::lonuserstate::readmap("$cdom/$cnum");
+ &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,&mt('Finished!'));
if ($ferr) {
+ &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
my $requrl = $r->uri;
$env{'user.error.msg'}="$requrl:bre:0:0:Course not initialized";
$env{'user.reinit'} = 1;
@@ -322,22 +401,42 @@ sub handler {
}
if ($direction eq 'firstres') {
my $furl=&first_accessible_resource();
- &Apache::loncommon::content_type($r,'text/html');
- $r->header_out(Location =>
- &Apache::lonnet::absolute_url().$furl);
-
- return REDIRECT;
+ my $usehttp = &check_http_req(\$furl,$hostname);
+ if (($usehttp) && ($hostname ne '')) {
+ $furl='http://'.$hostname.$furl;
+ } else {
+ $furl=&Apache::lonnet::absolute_url().$furl;
+ }
+ if ($reinitcheck eq 'update') {
+ &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
+ $r->print(&reinited_js($furl,$env{'request.course.id'},100));
+ $r->print(&Apache::loncommon::end_page());
+ return OK;
+ } else {
+ &Apache::loncommon::content_type($r,'text/html');
+ $r->header_out(Location => $furl);
+ return REDIRECT;
+ }
}
- if ($direction eq 'return') {
+ if ($direction eq 'return') {
# -------------------------------------------------------- Return to last known
- my $newloc;
+ my ($newloc,$usehttp);
if (($last) && (tie(%hash,'GDBM_File',$env{'request.course.fn'}.'.db',
&GDBM_READER(),0640))) {
my ($murl,$id,$fn)=&Apache::lonnet::decode_symb($last);
$id=$hash{'map_pc_'.&Apache::lonnet::clutter($murl)}.'.'.$id;
$newloc=$hash{'src_'.$id};
if ($newloc) {
- if ($hash{'encrypted_'.$id}) { $newloc=&Apache::lonenc::encrypted($newloc); }
+ $usehttp = &check_http_req(\$newloc,$hostname);
+ if ($hash{'encrypted_'.$id}) {
+ $newloc=&Apache::lonenc::encrypted($newloc);
+ }
+ if ($newloc =~ m{^(/adm/wrapper/ext/[^\#]+)(?:|(\#[^\#]+))$}) {
+ my ($url,$anchor) = ($1,$2);
+ if ($anchor) {
+ $newloc = $url.(($url=~/\?/)?'&':'?').'symb='.&escape($last).$anchor;
+ }
+ }
} else {
$newloc='/adm/navmaps';
}
@@ -345,11 +444,20 @@ sub handler {
} else {
$newloc='/adm/navmaps';
}
- &Apache::loncommon::content_type($r,'text/html');
- $r->header_out(Location =>
- &Apache::lonnet::absolute_url().$newloc);
-
- return REDIRECT;
+ if (($usehttp) && ($hostname ne '')) {
+ $newloc='http://'.$hostname.$newloc;
+ } else {
+ $newloc=&Apache::lonnet::absolute_url().$newloc
+ }
+ if ($reinitcheck eq 'update') {
+ $r->print(&reinited_js($newloc,$env{'request.course.id'},100));
+ $r->print(&Apache::loncommon::end_page());
+ return OK;
+ } else {
+ &Apache::loncommon::content_type($r,'text/html');
+ $r->header_out(Location => $newloc);
+ return REDIRECT;
+ }
}
#
# Is the current URL on the map? If not, start with last known URL
@@ -363,15 +471,21 @@ sub handler {
$last=$hash{'last_known'};
untie(%hash);
}
- my $newloc;
if ($last) {
$currenturl=&Apache::lonnet::clutter((&Apache::lonnet::decode_symb($last))[2]);
} else {
- &Apache::loncommon::content_type($r,'text/html');
- $r->header_out(Location =>
- &Apache::lonnet::absolute_url().
- '/adm/navmaps');
- return REDIRECT;
+ my $newloc = &Apache::lonnet::absolute_url().
+ '/adm/navmaps';
+ if ($reinitcheck eq 'update') {
+ &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
+ $r->print(&reinited_js($newloc,$env{'request.course.id'},100));
+ $r->print(&Apache::loncommon::end_page());
+ return OK;
+ } else {
+ &Apache::loncommon::content_type($r,'text/html');
+ $r->header_out(Location => $newloc);
+ return REDIRECT;
+ }
}
}
# ------------------------------------------- Do we have any idea where we are?
@@ -404,7 +518,7 @@ sub handler {
@possibilities=split(/\,/,$next);
if ($#possibilities==0) {
# ---------------------------------------------- Only one possibility, redirect
- ($redirecturl,$redirectsymb)=&hash_src($next);
+ ($redirecturl,$redirectsymb,$enc,$anchor)=&hash_src($next);
$cachehash{$endupmap}{$redirecturl}=
[$redirecturl,(split(/\./,$next))[1]];
} else {
@@ -452,12 +566,32 @@ sub handler {
# ------------------------------------- Check for and display critical messages
my ($redirect, $url) = &Apache::loncommon::critical_redirect(300);
unless ($redirect) {
- $url=&Apache::lonnet::absolute_url().$redirecturl;
+ my $usehttp = &check_http_req(\$redirecturl,$hostname);
+ if (($usehttp) && ($hostname ne '')) {
+ $url='http://'.$hostname.$redirecturl;
+ } else {
+ $url=&Apache::lonnet::absolute_url().$redirecturl;
+ }
+ my $addanchor;
+ if (($anchor ne '') && (!$enc || $env{'request.role.adv'})) {
+ $addanchor = 1;
+ $url =~ s/\#.+$//;
+ }
$url = &add_get_param($url, { 'symb' => $redirectsymb});
+ if ($addanchor) {
+ $url .= $anchor;
+ }
+ }
+ if ($reinitcheck eq 'update') {
+ &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
+ $r->print(&reinited_js($url,$env{'request.course.id'},100));
+ $r->print(&Apache::loncommon::end_page());
+ return OK;
+ } else {
+ &Apache::loncommon::content_type($r,'text/html');
+ $r->header_out(Location => $url);
+ return REDIRECT;
}
- &Apache::loncommon::content_type($r,'text/html');
- $r->header_out(Location => $url);
- return REDIRECT;
} else {
# --------------------------------------------------------- There was a problem
&Apache::loncommon::content_type($r,'text/html');
@@ -492,9 +626,14 @@ $lt{'pick'}:
$lt{'titleheader'} | $lt{'type'} |
ENDSTART
foreach my $id (@possibilities) {
+ my $src = $multichoicehash{'src_'.$id};
+ my $usehttp = &check_http_req(\$src,$hostname);
+ if (($usehttp) && ($hostname ne '')) {
+ $src = 'http://'.$hostname.$src;
+ }
$r->print(
''.
@@ -540,12 +679,23 @@ ENDSTART
}
} else {
# ------------------------------------------------- Problem, could not tie hash
+ if ($reinitcheck eq 'update') {
+ &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
+ $r->print(&Apache::loncommon::end_page());
+ }
$env{'user.error.msg'}="/adm/flip:bre:0:1:Course Data Missing";
return HTTP_NOT_ACCEPTABLE;
}
} else {
# ---------------------------------------- No, could not determine where we are
- $r->internal_redirect('/adm/ambiguous');
+ my $newloc = '/adm/ambiguous';
+ if ($reinitcheck eq 'update') {
+ &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
+ $r->print(&reinited_js($newloc,$env{'request.course.id'},100));
+ $r->print(&Apache::loncommon::end_page());
+ } else {
+ $r->internal_redirect($newloc);
+ }
return OK;
}
} else {
|