version 1.1, 2016/01/11 16:42:37
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version 1.6, 2017/11/30 02:17:50
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Line 46 use Apache::Constants qw(:common :http);
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Line 46 use Apache::Constants qw(:common :http);
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use Net::OAuth; |
use Net::OAuth; |
use Encode; |
use Encode; |
use Digest::SHA; |
use Digest::SHA; |
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use UUID::Tiny ':std'; |
use HTML::Entities; |
use HTML::Entities; |
use Apache::lonlocal; |
use Apache::lonlocal; |
use Apache::lonnet; |
use Apache::lonnet; |
Line 74 sub handler {
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Line 75 sub handler {
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return OK; |
return OK; |
} |
} |
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my $marker = (split(m{/},$r->uri))[4]; |
my ($marker,$exttool) = (split(m{/},$r->uri))[4,5]; |
$marker=~s/\D//g; |
$marker=~s/\D//g; |
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if (!$marker) { |
if (!$marker) { |
if ($target ne 'tex') { |
if ($target ne 'tex') { |
&Apache::loncommon::simple_error_page($r,'Invalid Call', |
$r->print(&mt('Invalid Call')); |
'Invalid Call'); |
|
} else { |
} else { |
$r->print('\textbf{Invalid call}\end{document}'); |
$r->print('\textbf{'&mt('Invalid Call').'}\end{document}'); |
} |
} |
return OK; |
return OK; |
} |
} |
Line 90 sub handler {
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Line 90 sub handler {
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my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; |
my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'}; |
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; |
my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'}; |
my $chome = $env{'course.'.$env{'request.course.id'}.'.home'}; |
my $chome = $env{'course.'.$env{'request.course.id'}.'.home'}; |
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my $is_tool; |
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if ($r->uri eq "/adm/$cdom/$cnum/$marker/exttool") { |
if ($r->uri eq "/adm/$cdom/$cnum/$marker/$exttool") { |
my %toolhash=&Apache::lonnet::dump('exttool_'.$marker,$cdom,$cnum); |
my %toolsettings=&Apache::lonnet::dump('exttool_'.$marker,$cdom,$cnum); |
if ($target eq 'tex') { |
if ($toolsettings{'id'}) { |
$r->print(&mt('External Tool')); |
my $idx = $toolsettings{'id'}; |
} else { |
my %ltitools = &Apache::lonnet::get_domain_ltitools($cdom); |
if (($toolhash{'key'} ne '') && ($toolhash{'secret'} ne '') && ($toolhash{'url'} ne '')) { |
if (ref($ltitools{$idx}) eq 'HASH') { |
my %lti = <i_params($r,\%toolhash); |
my %toolhash = %{$ltitools{$idx}}; |
$r->print(&launch_html($toolhash{'url'},$toolhash{'key'}, |
$toolhash{'display'} = { |
$toolhash{'secret'},$toolhash{'title'},\%lti)); |
target => $toolsettings{'target'}, |
} else { |
width => $toolsettings{'width'}, |
&Apache::loncommon::simple_error_page($r,'External Tool Unavailable', |
height => $toolsettings{'height'}, |
'External Tool Unavailable'); |
}; |
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$toolhash{'crslabel'} = $toolsettings{'crslabel'}; |
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$toolhash{'crstitle'} = $toolsettings{'crstitle'}; |
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$toolhash{'crsappend'} = $toolsettings{'crsappend'}; |
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$is_tool = 1; |
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my $launchok = 1; |
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if ($target eq 'tex') { |
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$r->print(&mt('External Tool')); |
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} else { |
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my $now = time; |
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if ($toolhash{'passback'}) { |
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unless (&set_callback_secret($cdom,$cnum,$marker,'grade',$now, |
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\%toolsettings,\%toolhash) eq 'ok') { |
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undef($launchok); |
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} |
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} |
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if ($toolhash{'roster'}) { |
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&set_callback_secret($cdom,$cnum,$marker,'roster',$now, |
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\%toolsettings,\%toolhash); |
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} |
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my $submittext = &mt('Launch [_1]',$toolhash{'title'}); |
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if (($toolhash{'key'} ne '') && ($toolhash{'secret'} ne '') && |
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($toolhash{'url'} ne '') && ($launchok)) { |
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my %lti = <i_params($r,$cnum,$cdom,$idx,$submittext,\%toolhash); |
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my $url = $toolhash{'url'}; |
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if ($toolhash{'crsappend'} ne '') { |
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$url .= $toolhash{'crsappend'}; |
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} |
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$r->print(&launch_html($url,$toolhash{'key'},$toolhash{'secret'}, |
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$submittext,\%lti)); |
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} else { |
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$r->print('<div>'.&mt('External Tool Unavailable').'</div>'); |
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} |
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} |
} |
} |
} |
} |
} else { |
} |
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unless ($is_tool) { |
if ($target ne 'tex') { |
if ($target ne 'tex') { |
&Apache::loncommon::simple_error_page($r,'Invalid Call', |
$r->print('<div>'.&mt('Invalid Call').'</div>'); |
'Invalid Call'); |
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} else { |
} else { |
$r->print('\textbf{Invalid call}\end{document}'); |
$r->print('\textbf{'.&mt(Invalid Call).'}\end{document}'); |
} |
} |
return OK; |
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} |
} |
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&print_end_page($r,$target); |
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return OK; |
return OK; |
} |
} |
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sub print_end_page { |
sub set_callback_secret { |
my ($r,$target) = @_; |
my ($cdom,$cnum,$marker,$name,$now,$toolsettings,$toolhash) = @_; |
if ($target ne 'tex') { |
return unless ((ref($toolsettings) eq 'HASH') && (ref($toolhash) eq 'HASH')); |
$r->print(&Apache::loncommon::end_page()); |
my $warning; |
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my ($needsnew,$oldsecret,$lifetime); |
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if ($name eq 'grade') { |
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$lifetime = $toolhash->{'passbackvalid'} |
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} elsif ($name eq 'roster') { |
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$lifetime = $toolhash->{'rostervalid'}; |
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} |
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if ($toolsettings->{$name} eq '') { |
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$needsnew = 1; |
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} elsif (($toolsettings->{$name.'date'} + $lifetime) < $now) { |
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$oldsecret = $toolsettings->{$name.'secret'}; |
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$needsnew = 1; |
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} |
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if ($needsnew) { |
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if (&get_tool_lock($cdom,$cnum,$marker,$now) eq 'ok') { |
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my $secret = UUID::Tiny::create_uuid_as_string(UUID_V4); |
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$toolhash->{$name.'secret'} = $secret; |
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my %secrethash = ( |
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$name.'secret' => $secret, |
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$name.'secretdate' => $now, |
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); |
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if ($oldsecret ne '') { |
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$secrethash{'old'.$name.'secret'} = $oldsecret; |
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} |
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my $putres = &Apache::lonnet::put('exttool_'.$marker, |
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\%secrethash,$cdom,$cnum); |
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my $delresult = &release_tool_lock($cdom,$cnum,$marker); |
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if ($delresult ne 'ok') { |
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$warning = $delresult ; |
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} |
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if ($putres eq 'ok') { |
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return 'ok'; |
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} |
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} else { |
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$warning = '<span class="LC_error">'. |
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&mt('Could not obtain exclusive lock'). |
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'</span>'; |
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} |
} else { |
} else { |
$r->print('\end{document}'); |
$toolhash->{$name.'secret'} = $toolsettings->{$name.'secret'}; |
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return 'ok'; |
} |
} |
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return; |
} |
} |
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sub lti_params { |
sub lti_params { |
my ($r,$toolsref) = @_; |
my ($r,$cnum,$cdom,$idx,$submittext,$toolsref) = @_; |
my ($version,$context_type,$msgtype,$toolname,$passback,$roster,$locale, |
my ($version,$context_type,$msgtype,$toolname,$passback,$roster,$locale, |
%fields,%rolesmap,%display,%custom,@userlangs); |
$crslabel,$crstitle,$gradesecret,$rostersecret,%fields,%rolesmap, |
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%display,%custom,@userlangs); |
if (ref($toolsref) eq 'HASH') { |
if (ref($toolsref) eq 'HASH') { |
$version = $toolsref->{'version'}; |
$version = $toolsref->{'version'}; |
$toolname = $toolsref->{'title'}; |
$toolname = $toolsref->{'title'}; |
$passback = $toolsref->{'passback'}; |
$passback = $toolsref->{'passback'}; |
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$gradesecret = $toolsref->{'gradesecret'}; |
$roster = $toolsref->{'roster'}; |
$roster = $toolsref->{'roster'}; |
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$rostersecret = $toolsref->{'rostersecret'}; |
$msgtype = $toolsref->{'messagetype'}; |
$msgtype = $toolsref->{'messagetype'}; |
if (ref($toolsref->{'fields'}) eq 'HASH') { |
if (ref($toolsref->{'fields'}) eq 'HASH') { |
%fields = %{$toolsref->{'fields'}}; |
%fields = %{$toolsref->{'fields'}}; |
Line 150 sub lti_params {
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Line 223 sub lti_params {
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if (ref($toolsref->{'custom'}) eq 'HASH') { |
if (ref($toolsref->{'custom'}) eq 'HASH') { |
%custom = %{$toolsref->{'custom'}}; |
%custom = %{$toolsref->{'custom'}}; |
} |
} |
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$crslabel = $toolsref->{'crslabel'}; |
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$crstitle = $toolsref->{'crstitle'}; |
} |
} |
if ($version eq '') { |
if ($version eq '') { |
$version = 'LTI-1p0'; |
$version = 'LTI-1p0'; |
Line 160 sub lti_params {
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Line 235 sub lti_params {
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if ($msgtype eq '') { |
if ($msgtype eq '') { |
$msgtype = 'basic-lti-launch-request'; |
$msgtype = 'basic-lti-launch-request'; |
} |
} |
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if ($crslabel eq '') { |
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$crslabel = $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}, |
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} |
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if ($crstitle eq '') { |
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$crstitle = $env{'course.'.$env{'request.course.id'}.'.description'},; |
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} |
my $lonhost = $r->dir_config('lonHostID'); |
my $lonhost = $r->dir_config('lonHostID'); |
my $loncaparev = $r->dir_config('lonVersion'); |
my $loncaparev = $r->dir_config('lonVersion'); |
my $uname = $env{'user.name'}; |
my $uname = $env{'user.name'}; |
my $udom = $env{'user.domain'}; |
my $udom = $env{'user.domain'}; |
my @possroles = qw(Instructor ContentDeveloper TeachingAssistant Learner); |
my @possroles = qw(Instructor ContentDeveloper TeachingAssistant Learner); |
my $ltirole = $rolesmap{$env{'request.role'}}; |
my ($roleprefix) = ($env{'request.role'} =~ /^(\w+)\./); |
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my $ltirole = $rolesmap{$roleprefix}; |
unless (grep(/^\Q$ltirole\E$/,@possroles)) { |
unless (grep(/^\Q$ltirole\E$/,@possroles)) { |
$ltirole = 'Learner'; |
$ltirole = 'Learner'; |
} |
} |
Line 175 sub lti_params {
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Line 257 sub lti_params {
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@userlangs=(@userlangs,split(/\s*(\,|\;|\:)\s*/, |
@userlangs=(@userlangs,split(/\s*(\,|\;|\:)\s*/, |
$env{'course.'.$env{'request.course.id'}.'.languages'})); |
$env{'course.'.$env{'request.course.id'}.'.languages'})); |
} else { |
} else { |
my %langhash = &getlangs($uname,$udom); |
my %langhash = &Apache::loncommon::getlangs($uname,$udom); |
if ($langhash{'languages'} ne '') { |
if ($langhash{'languages'} ne '') { |
@userlangs = split(/\s*(\,|\;|\:)\s*/,$langhash{'languages'}); |
@userlangs = split(/\s*(\,|\;|\:)\s*/,$langhash{'languages'}); |
} else { |
} else { |
Line 201 sub lti_params {
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Line 283 sub lti_params {
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} |
} |
} |
} |
} |
} |
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my $domdesc = &Apache::lonnet::domain($cdom); |
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my $primary_id = &Apache::lonnet::domain($cdom,'primary'); |
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my $int_dom = &Apache::lonnet::internet_dom($primary_id); |
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my $portal_url = &Apache::lonnet::course_portal_url($cnum,$cdom); |
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my %ltiparams = ( |
my %ltiparams = ( |
lti_version => $version, |
lti_version => $version, |
lti_message_type => $msgtype, |
lti_message_type => $msgtype, |
resource_link_title => $title, |
resource_link_title => $title, |
resource_link_id => $digest_symb, |
resource_link_id => $digest_symb, |
tool_consumer_instance_guid => $lonhost, |
tool_consumer_instance_guid => $lonhost, |
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tool_consumer_instance_description => $domdesc, |
tool_consumer_info_product_family_code => 'loncapa', |
tool_consumer_info_product_family_code => 'loncapa', |
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tool_consumer_instance_name => $int_dom, |
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tool_consumer_instance_url => $portal_url, |
tool_consumer_info_version => $loncaparev, |
tool_consumer_info_version => $loncaparev, |
user_id => $digest_user, |
user_id => $digest_user, |
lis_person_sourcedid => $uname.':'.$udom, |
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roles => $ltirole, |
roles => $ltirole, |
context_id => $env{'request.course.id'}, |
context_id => $env{'request.course.id'}, |
context_type => $context_type, |
context_type => $context_type, |
context_label => $env{'course.'.$env{'request.course.id'}.'.internal.coursecode'}, |
context_label => $crslabel, |
context_title => $env{'course.'.$env{'request.course.id'}.'.description'}, |
context_title => $crstitle, |
launch_presentation_locale => $locale, |
launch_presentation_locale => $locale, |
); |
); |
my $crshostname = $env{'course.'.$env{'request.course.id'}.'.home'}; |
my $crshome = $env{'course.'.$env{'request.course.id'}.'.home'}; |
my $crsprotocol = $Apache::lonnet::protocol{$crshostname}; |
my $crshostname = &Apache::lonnet::hostname($crshome); |
if ($crshostname) { |
if ($crshostname) { |
my $crsprotocol = $Apache::lonnet::protocol{$crshostname}; |
my $crsprotocol = $Apache::lonnet::protocol{$crshome}; |
unless ($crsprotocol eq 'https') { |
unless ($crsprotocol eq 'https') { |
$crsprotocol = 'http'; |
$crsprotocol = 'http'; |
} |
} |
if ($passback) { |
if (($passback) || ($roster)) { |
if ($ltirole eq 'Learner') { |
if ($passback) { |
$ltiparams{'lis_outcome_service_url'} = $crsprotocol.'//'.$crshostname.'/adm/ltipassback'; |
$ltiparams{'lis_outcome_service_url'} = $crsprotocol.'//'.$crshostname.'/adm/service/passback'; |
$ltiparams{'ext_ims_lis_basic_outcome_url'} = $ltiparams{'lis_outcome_service_url'}; |
$ltiparams{'ext_ims_lis_basic_outcome_url'} = $ltiparams{'lis_outcome_service_url'}; |
$ltiparams{'lis_result_sourcedid'} = ''; #FIXME |
if ($gradesecret) { |
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my $result_sig = |
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Digest::SHA::sha1_hex($gradesecret.':::'.$digest_symb.':::'.$digest_user.':::'.$env{'request.course.id'}); |
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$ltiparams{'lis_result_sourcedid'} = |
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$result_sig.':::'.$digest_symb.':::'.$digest_user.':::'.$env{'request.course.id'}; |
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} |
} |
} |
} |
if ($roster) { |
if ($roster) { |
if (&Apache::lonnet::allowed('opa',$env{'request.course.id'})) { |
if (&Apache::lonnet::allowed('opa',$env{'request.course.id'})) { |
$ltiparams{'ext_ims_lis_memberships_url'} = $crsprotocol.'//'.$crshostname.'/adm/service/roster'; |
$ltiparams{'ext_ims_lis_memberships_url'} = $crsprotocol.'//'.$crshostname.'/adm/ltiroster'; |
if ($rostersecret) { |
$ltiparams{'ext_ims_lis_memberships_id'} = ''; #FIXME |
my $roster_sig = Digest::SHA::sha1_hex($gradesecret.':::'.$digest_symb.':::'.$env{'request.course.id'}); |
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$ltiparams{'ext_ims_lis_memberships_id'} = $roster_sig.':::'.$digest_symb.':::'.$env{'request.course.id'}; |
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} |
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} |
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} |
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my %digesthash; |
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if ($ltiparams{'lis_result_sourcedid'}) { |
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$digesthash{$ltiparams{'lis_result_sourcedid'}} = "$idx\0".time; |
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} |
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if ($ltiparams{'ext_ims_lis_memberships_id'}) { |
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$digesthash{$ltiparams{'ext_ims_lis_memberships_id'}} = "$idx\0".time; |
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} |
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if (($digest_symb) && ($gradesecret || $rostersecret)) { |
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$digesthash{$digest_symb} = $symb; |
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} |
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if (($passback) && ($gradesecret)) { |
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$digesthash{$digest_user} = $uname.':'.$udom; |
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} |
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if (keys(%digesthash)) { |
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&Apache::lonnet::put('exttools',\%digesthash,$cdom,$cnum); |
} |
} |
} |
} |
} |
} |
Line 260 sub lti_params {
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Line 373 sub lti_params {
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if ($fields{'email'}) { |
if ($fields{'email'}) { |
my %emails = &Apache::loncommon::getemails($uname,$udom); |
my %emails = &Apache::loncommon::getemails($uname,$udom); |
my $contact_email; |
my $contact_email; |
foreach my $email ('permanentemail','critnotification','notification') { |
foreach my $type ('permanentemail','critnotification','notification') { |
if ($email =~ /\@/) { |
if ($emails{$type} =~ /\@/) { |
$contact_email = $email; |
$contact_email = $emails{$type}; |
last; |
last; |
} |
} |
} |
} |
$ltiparams{'lis_person_contact_email_primary'} = &contact_email; |
$ltiparams{'lis_person_contact_email_primary'} = $contact_email; |
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} |
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if ($fields{'user'}) { |
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$ltiparams{'lis_person_sourcedid'} = $uname.':'.$udom; |
} |
} |
if (keys(%custom)) { |
if (keys(%custom)) { |
foreach my $key (keys(%custom)) { |
foreach my $key (keys(%custom)) { |
$ltiparams{'custom_'.$key} = $custom{$key}; |
my $value = $custom{$key}; |
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$value =~ s/^\s+|\s+\$//g; |
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if ($value =~ /^\QLONCAPA::env{\E([^\}]+)\}$/) { |
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if (exists($env{$1})) { |
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$value = $env{$1}; |
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} |
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} |
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$ltiparams{'custom_'.$key} = $value; |
} |
} |
} |
} |
foreach my $key (keys(%ltiparams)) { |
foreach my $key (keys(%ltiparams)) { |
$ltiparams{$key} = &Encode::decode_utf8($ltiparams{$key}); |
$ltiparams{$key} = &Encode::decode_utf8($ltiparams{$key}); |
} |
} |
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$ltiparams{'basiclti_submit'} = $submittext; |
return %ltiparams; |
return %ltiparams; |
} |
} |
|
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sub launch_html { |
sub launch_html { |
my ($url,$key,$secret,$toolname,$paramsref) = @_; |
my ($url,$key,$secret,$submittext,$paramsref) = @_; |
my $hashref = &sign_params($url,$key,$secret,$paramsref); |
my $hashref = &sign_params($url,$key,$secret,$paramsref); |
my $submittext = &mt('Launch [_1]',$toolname); |
my $action = &HTML::Entities::encode($url,'<>&"'); |
my $form = <<"END"; |
my $form = <<"END"; |
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> |
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> |
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"> |
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"> |
<body> |
<body> |
<div id="LCltiLaunch"> |
<div id="LCltiLaunch"> |
<form name="LCltiLaunchForm" action="$url" method="post" encType="application/x-www-form-urlencoded"> |
<form name="LCltiLaunchForm" id="LCltiLaunchFormId" action="$action" method="post" encType="application/x-www-form-urlencoded"> |
<input type="submit" name="LCbasicltiSubmit" value="$submittext" /> |
|
END |
END |
if (ref($hashref) eq 'HASH') { |
if (ref($hashref) eq 'HASH') { |
foreach my $item (keys(%{$hashref})) { |
foreach my $item (keys(%{$hashref})) { |
$form .= '<input type="hidden" name="'.$item.'" value="'.$hashref->{$item}.'" id="id_'.$item.'" />'."\n"; |
my $type = 'hidden'; |
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if ($item eq 'basiclti_submit') { |
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$type = 'submit'; |
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} |
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$form .= '<input type="'.$type.'" name="'.$item.'" value="'.$hashref->{$item}.'" id="id_'.$item.'" />'."\n"; |
} |
} |
} |
} |
$form .= "</form></div>\n"; |
$form .= "</form></div>\n"; |
Line 302 END
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Line 429 END
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document.getElementById("LCltiLaunch").style.display = "none"; |
document.getElementById("LCltiLaunch").style.display = "none"; |
nei = document.createElement('input'); |
nei = document.createElement('input'); |
nei.setAttribute('type','hidden'); |
nei.setAttribute('type','hidden'); |
nei.setAttribute('name','LCbasicltiSubmit'); |
nei.setAttribute('name','basiclti_submit'); |
nei.setAttribute('value','$submittext'); |
nei.setAttribute('value','$submittext'); |
document.getElementById("LCltiLaunchForm").appendChild(nei); |
document.getElementById("LCltiLaunchFormId").appendChild(nei); |
document.LCltiLaunchForm.submit(); |
document.LCltiLaunchForm.submit(); |
</script> |
</script> |
ENDJS |
ENDJS |
Line 315 ENDJS
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Line 442 ENDJS
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sub sign_params { |
sub sign_params { |
my ($url,$key,$secret,$paramsref) = @_; |
my ($url,$key,$secret,$paramsref) = @_; |
my $nonce = Digest::SHA::sha1_hex(sprintf("%06x%06x",rand(0xfffff0),rand(0xfffff0))); |
my $nonce = Digest::SHA::sha1_hex(sprintf("%06x%06x",rand(0xfffff0),rand(0xfffff0))); |
|
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my $request = Net::OAuth->request("request token")->new( |
my $request = Net::OAuth->request("request token")->new( |
consumer_key => $key, |
consumer_key => $key, |
consumer_secret => $secret, |
consumer_secret => $secret, |
Line 331 sub sign_params {
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Line 459 sub sign_params {
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return $request->to_hash(); |
return $request->to_hash(); |
} |
} |
|
|
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sub get_tool_lock { |
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my ($cdom,$cnum,$marker,$now) = @_; |
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# get lock for tool for which gradesecret is being set |
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my $lockhash = { |
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$marker."\0".'lock' => $now.':'.$env{'user.name'}. |
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':'.$env{'user.domain'}, |
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}; |
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my $tries = 0; |
|
my $gotlock = &Apache::lonnet::newput('exttools',$lockhash,$cdom,$cnum); |
|
|
|
while (($gotlock ne 'ok') && $tries <3) { |
|
$tries ++; |
|
sleep(1); |
|
$gotlock = &Apache::lonnet::newput('exttools',$lockhash,$cdom,$cnum); |
|
} |
|
return $gotlock; |
|
} |
|
|
|
sub release_tool_lock { |
|
my ($cdom,$cnum,$marker) = @_; |
|
# remove lock |
|
my @del_lock = ($marker."\0".'lock'); |
|
my $dellockoutcome=&Apache::lonnet::del('exttools',\@del_lock,$cdom,$cnum); |
|
if ($dellockoutcome ne 'ok') { |
|
return ('<div class="LC_error">' |
|
.&mt('Warning: failed to release lock for exttool: [_1].','<tt>'.$marker.'</tt>') |
|
.'</div>' |
|
); |
|
} else { |
|
return 'ok'; |
|
} |
|
} |
|
|
1; |
1; |