--- loncom/interface/loncommon.pm 2020/01/10 05:15:29 1.1075.2.141
+++ loncom/interface/loncommon.pm 2020/07/18 19:14:03 1.1075.2.141.2.4
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# a pile of common routines
#
-# $Id: loncommon.pm,v 1.1075.2.141 2020/01/10 05:15:29 raeburn Exp $
+# $Id: loncommon.pm,v 1.1075.2.141.2.4 2020/07/18 19:14:03 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -83,6 +83,8 @@ use Crypt::DES;
use DynaLoader; # for Crypt::DES version
use File::Copy();
use File::Path();
+use String::CRC32();
+use Short::URL();
# ---------------------------------------------- Designs
use vars qw(%defaultdesign);
@@ -428,7 +430,7 @@ sub studentbrowser_javascript {
OFFLOAD
- }
}
}
}
@@ -8390,8 +8475,7 @@ sub modal_link {
$target_attr = 'target="'.$target.'"';
}
return <<"ENDLINK";
-
- $linktext
+$linktext
ENDLINK
}
@@ -15455,12 +15539,17 @@ 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
@@ -17164,6 +17253,131 @@ sub des_decrypt {
return $plaintext;
}
+sub make_short_symbs {
+ my ($cdom,$cnum,$navmap) = @_;
+ return unless (ref($navmap));
+ my ($numnew,@errors);
+ my @toshorten = &Apache::loncommon::get_env_multiple('form.addtiny');
+ if (@toshorten) {
+ my (%maps,%resources,%titles);
+ &Apache::loncourserespicker::enumerate_course_contents($navmap,\%maps,\%resources,\%titles,
+ 'shorturls',$cdom,$cnum);
+ my %tocreate;
+ if (keys(%resources)) {
+ foreach my $item (sort {$a <=> $b} (@toshorten)) {
+ my $symb = $resources{$item};
+ if ($symb) {
+ $tocreate{$cnum.'&'.$symb} = 1;
+ }
+ }
+ }
+ if (keys(%tocreate)) {
+ my %coursetiny = &Apache::lonnet::dump('tiny',$cdom,$cnum);
+ my $su = Short::URL->new(no_vowels => 1);
+ my $init = '';
+ my (%newunique,%addcourse,%courseonly,%failed);
+ # get lock on tiny db
+ my $now = time;
+ my $lockhash = {
+ "lock\0$now" => $env{'user.name'}.
+ ':'.$env{'user.domain'},
+ };
+ my $tries = 0;
+ my $gotlock = &Apache::lonnet::newput_dom('tiny',$lockhash,$cdom);
+ my ($code,$error);
+ while (($gotlock ne 'ok') && ($tries<3)) {
+ $tries ++;
+ sleep 1;
+ $gotlock = &Apache::lonnet::newput_dom('tiny',$lockhash,$cdom);
+ }
+ if ($gotlock eq 'ok') {
+ $init = &shorten_symbs($cdom,$init,$su,\%coursetiny,\%tocreate,\%newunique,
+ \%addcourse,\%courseonly,\%failed);
+ if (keys(%failed)) {
+ my $numfailed = scalar(keys(%failed));
+ push(@errors,&mt('error: could not obtain unique six character URL for [quant,_1,resource]',$numfailed));
+ }
+ if (keys(%newunique)) {
+ my $putres = &Apache::lonnet::newput_dom('tiny',\%newunique,$cdom);
+ if ($putres eq 'ok') {
+ $numnew = scalar(keys(%newunique));
+ my $newputres = &Apache::lonnet::newput('tiny',\%addcourse,$cdom,$cnum);
+ unless ($newputres eq 'ok') {
+ push(@errors,&mt('error: could not store course look-up of short URLs'));
+ }
+ } else {
+ push(@errors,&mt('error: could not store unique six character URLs'));
+ }
+ }
+ }
+ }
+ }
+ return ($numnew,\@errors);
+}
+
+sub shorten_symbs {
+ my ($cdom,$init,$su,$coursetiny,$tocreate,$newunique,$addcourse,$courseonly,$failed) = @_;
+ return unless ((ref($su)) && (ref($coursetiny) eq 'HASH') && (ref($tocreate) eq 'HASH') &&
+ (ref($newunique) eq 'HASH') && (ref($addcourse) eq 'HASH') &&
+ (ref($courseonly) eq 'HASH') && (ref($failed) eq 'HASH'));
+ my (%possibles,%collisions);
+ foreach my $key (keys(%{$tocreate})) {
+ my $num = String::CRC32::crc32($key);
+ my $tiny = $su->encode($num,$init);
+ if ($tiny) {
+ $possibles{$tiny} = $key;
+ }
+ }
+ if (!$init) {
+ $init = 1;
+ } else {
+ $init ++;
+ }
+ if (keys(%possibles)) {
+ my @posstiny = keys(%possibles);
+ my $configuname = &Apache::lonnet::get_domainconfiguser($cdom);
+ my %currtiny = &Apache::lonnet::get('tiny',\@posstiny,$cdom,$configuname);
+ if (keys(%currtiny)) {
+ foreach my $key (keys(%currtiny)) {
+ next if ($currtiny{$key} eq '');
+ if ($currtiny{$key} eq $possibles{$key}) {
+ my ($tcnum,$tsymb) = split(/\&/,$currtiny{$key});
+ unless (($coursetiny->{$tsymb} eq $key) || ($addcourse->{$tsymb} eq $key) || ($courseonly->{$tsymb} eq $key)) {
+ $courseonly->{$tsymb} = $key;
+ }
+ } else {
+ $collisions{$possibles{$key}} = 1;
+ }
+ delete($possibles{$key});
+ }
+ }
+ foreach my $key (keys(%possibles)) {
+ $newunique->{$key} = $possibles{$key};
+ my ($tcnum,$tsymb) = split(/\&/,$possibles{$key});
+ unless (($coursetiny->{$tsymb} eq $key) || ($addcourse->{$tsymb} eq $key) || ($courseonly->{$tsymb} eq $key)) {
+ $addcourse->{$tsymb} = $key;
+ }
+ }
+ }
+ if (keys(%collisions)) {
+ if ($init <5) {
+ if (!$init) {
+ $init = 1;
+ } else {
+ $init ++;
+ }
+ $init = &shorten_symbs($cdom,$init,$su,$coursetiny,\%collisions,
+ $newunique,$addcourse,$courseonly,$failed);
+ } else {
+ foreach my $key (keys(%collisions)) {
+ $failed->{$key} = 1;
+ $failed->{$key} = 1;
+ }
+ }
+ }
+ 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);
@@ -17187,7 +17401,9 @@ sub is_nonframeable {
}
my $uselink;
my $request = new HTTP::Request('HEAD',$url);
- my $response = &LONCAPA::LWPReq::makerequest('',$request,'','',5);
+ my $ua = LWP::UserAgent->new;
+ $ua->timeout(5);
+ my $response=$ua->request($request);
if ($response->is_success()) {
my $secpolicy = lc($response->header('content-security-policy'));
my $xframeop = lc($response->header('x-frame-options'));