--- loncom/interface/loncommon.pm 2019/04/24 01:44:30 1.1327
+++ loncom/interface/loncommon.pm 2020/06/01 20:35:02 1.1342
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# a pile of common routines
#
-# $Id: loncommon.pm,v 1.1327 2019/04/24 01:44:30 raeburn Exp $
+# $Id: loncommon.pm,v 1.1342 2020/06/01 20:35:02 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -72,6 +72,7 @@ use Apache::lonuserstate();
use Apache::courseclassifier();
use LONCAPA qw(:DEFAULT :match);
use LONCAPA::LWPReq;
+use HTTP::Request;
use DateTime::TimeZone;
use DateTime::Locale;
use Encode();
@@ -79,7 +80,6 @@ use Text::Aspell;
use Authen::Captcha;
use Captcha::reCAPTCHA;
use JSON::DWIW;
-use LWP::UserAgent;
use Crypt::DES;
use DynaLoader; # for Crypt::DES version
use MIME::Lite;
@@ -435,7 +435,7 @@ sub studentbrowser_javascript {
OFFLOAD
- }
}
}
}
@@ -8936,8 +9073,7 @@ sub modal_link {
$target_attr = 'target="'.$target.'"';
}
return <<"ENDLINK";
-
- $linktext
+$linktext
ENDLINK
}
@@ -15923,7 +16059,8 @@ sub construct_course {
$outcome .= $clonemsg.$linefeed;
my %oldcenv=&Apache::lonnet::dump('environment',$$crsudom,$$crsunum);
# Copy all files
- &Apache::lonclonecourse::copycoursefiles($cloneid,$$courseid,$args->{'datemode'},$args->{'dateshift'});
+ &Apache::lonclonecourse::copycoursefiles($cloneid,$$courseid,$args->{'datemode'},
+ $args->{'dateshift'},$args->{'crscode'});
# Restore URL
$cenv{'url'}=$oldcenv{'url'};
# Restore title
@@ -16190,12 +16327,17 @@ sub construct_course {
# Open all assignments
#
if ($args->{'openall'}) {
+ my $opendate = time;
+ if ($args->{'openallfrom'} =~ /^\d+$/) {
+ $opendate = $args->{'openallfrom'};
+ }
my $storeunder=$$crsudom.'_'.$$crsunum.'.0.opendate';
- my %storecontent = ($storeunder => time,
+ my %storecontent = ($storeunder => $opendate,
$storeunder.'.type' => 'date_start');
-
- $outcome .= &mt('Opening all assignments').': '.&Apache::lonnet::cput
- ('resourcedata',\%storecontent,$$crsudom,$$crsunum).$linefeed;
+ $outcome .= &mt('All assignments open starting [_1]',
+ &Apache::lonlocal::locallocaltime($opendate)).': '.
+ &Apache::lonnet::cput
+ ('resourcedata',\%storecontent,$$crsudom,$$crsunum).$linefeed;
}
#
# Set first page
@@ -18191,6 +18333,157 @@ sub shorten_symbs {
return $init;
}
+sub is_nonframeable {
+ my ($url,$absolute,$hostname,$ip,$nocache) = @_;
+ my ($remprotocol,$remhost) = ($url =~ m{^(https?)\://(([a-z0-9]+(-[a-z0-9]+)*\.)+[a-z]{2,})}i);
+ return if (($remprotocol eq '') || ($remhost eq ''));
+
+ $remprotocol = lc($remprotocol);
+ $remhost = lc($remhost);
+ my $remport = 80;
+ if ($remprotocol eq 'https') {
+ $remport = 443;
+ }
+ my ($result,$cached) = &Apache::lonnet::is_cached_new('noiframe',$remhost.':'.$remport);
+ if ($cached) {
+ unless ($nocache) {
+ if ($result) {
+ return 1;
+ } else {
+ return 0;
+ }
+ }
+ }
+ my $uselink;
+ my $request = new HTTP::Request('HEAD',$url);
+ my $response = &LONCAPA::LWPReq::makerequest('',$request,'','',5);
+ if ($response->is_success()) {
+ my $secpolicy = lc($response->header('content-security-policy'));
+ my $xframeop = lc($response->header('x-frame-options'));
+ $secpolicy =~ s/^\s+|\s+$//g;
+ $xframeop =~ s/^\s+|\s+$//g;
+ if (($secpolicy ne '') || ($xframeop ne '')) {
+ my $remotehost = $remprotocol.'://'.$remhost;
+ my ($origin,$protocol,$port);
+ if ($ENV{'SERVER_PORT'} =~/^\d+$/) {
+ $port = $ENV{'SERVER_PORT'};
+ } else {
+ $port = 80;
+ }
+ if ($absolute eq '') {
+ $protocol = 'http:';
+ if ($port == 443) {
+ $protocol = 'https:';
+ }
+ $origin = $protocol.'//'.lc($hostname);
+ } else {
+ $origin = lc($absolute);
+ ($protocol,$hostname) = ($absolute =~ m{^(https?:)//([^/]+)$});
+ }
+ if (($secpolicy) && ($secpolicy =~ /\Qframe-ancestors\E([^;]*)(;|$)/)) {
+ my $framepolicy = $1;
+ $framepolicy =~ s/^\s+|\s+$//g;
+ my @policies = split(/\s+/,$framepolicy);
+ if (@policies) {
+ if (grep(/^\Q'none'\E$/,@policies)) {
+ $uselink = 1;
+ } else {
+ $uselink = 1;
+ if ((grep(/^\Q*\E$/,@policies)) || (grep(/^\Q$protocol\E$/,@policies)) ||
+ (($origin ne '') && (grep(/^\Q$origin\E$/,@policies))) ||
+ (($ip ne '') && (grep(/^\Q$ip\E$/,@policies)))) {
+ undef($uselink);
+ }
+ if ($uselink) {
+ if (grep(/^\Q'self'\E$/,@policies)) {
+ if (($origin ne '') && ($remotehost eq $origin)) {
+ undef($uselink);
+ }
+ }
+ }
+ if ($uselink) {
+ my @possok;
+ if ($ip ne '') {
+ push(@possok,$ip);
+ }
+ my $hoststr = '';
+ foreach my $part (reverse(split(/\./,$hostname))) {
+ if ($hoststr eq '') {
+ $hoststr = $part;
+ } else {
+ $hoststr = "$part.$hoststr";
+ }
+ if ($hoststr eq $hostname) {
+ push(@possok,$hostname);
+ } else {
+ push(@possok,"*.$hoststr");
+ }
+ }
+ if (@possok) {
+ foreach my $poss (@possok) {
+ last if (!$uselink);
+ foreach my $policy (@policies) {
+ if ($policy =~ m{^(\Q$protocol\E//|)\Q$poss\E(\Q:$port\E|)$}) {
+ undef($uselink);
+ last;
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ } elsif ($xframeop ne '') {
+ $uselink = 1;
+ my @policies = split(/\s*,\s*/,$xframeop);
+ if (@policies) {
+ unless (grep(/^deny$/,@policies)) {
+ if ($origin ne '') {
+ if (grep(/^sameorigin$/,@policies)) {
+ if ($remotehost eq $origin) {
+ undef($uselink);
+ }
+ }
+ if ($uselink) {
+ foreach my $policy (@policies) {
+ if ($policy =~ /^allow-from\s*(.+)$/) {
+ my $allowfrom = $1;
+ if (($allowfrom ne '') && ($allowfrom eq $origin)) {
+ undef($uselink);
+ last;
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ if ($nocache) {
+ if ($cached) {
+ my $devalidate;
+ if ($uselink && !$result) {
+ $devalidate = 1;
+ } elsif (!$uselink && $result) {
+ $devalidate = 1;
+ }
+ if ($devalidate) {
+ &Apache::lonnet::devalidate_cache_new('noiframe',$remhost.':'.$remport);
+ }
+ }
+ } else {
+ if ($uselink) {
+ $result = 1;
+ } else {
+ $result = 0;
+ }
+ &Apache::lonnet::do_cache_new('noiframe',$remhost.':'.$remport,$result,3600);
+ }
+ return $uselink;
+}
+
1;
__END__;