version 1.9, 2018/05/15 04:33:17
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version 1.17.2.3, 2023/01/23 18:39:46
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Line 31 package LONCAPA::ltiutils;
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Line 31 package LONCAPA::ltiutils;
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use strict; |
use strict; |
use Net::OAuth; |
use Net::OAuth; |
use Digest::SHA; |
use Digest::SHA; |
use UUID::Tiny ':std'; |
use Digest::MD5 qw(md5_hex); |
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use Encode; |
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use LWP::UserAgent(); |
use Apache::lonnet; |
use Apache::lonnet; |
use Apache::loncommon; |
use Apache::loncommon; |
use LONCAPA qw(:DEFAULT :match); |
use LONCAPA qw(:DEFAULT :match); |
Line 88 sub check_nonce {
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Line 90 sub check_nonce {
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# |
# |
# LON-CAPA as LTI Consumer |
# LON-CAPA as LTI Consumer |
# |
# |
# Determine the domain and the courseID of the LON-CAPA course |
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# for which access is needed by a Tool Provider -- either to |
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# retrieve a roster or store the grade for an instance of an |
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# external tool in the course. |
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# |
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|
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sub get_loncapa_course { |
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my ($lonhost,$cid,$errors) = @_; |
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return unless (ref($errors) eq 'HASH'); |
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my ($cdom,$cnum); |
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if ($cid =~ /^($match_domain)_($match_courseid)$/) { |
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my ($posscdom,$posscnum) = ($1,$2); |
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my $cprimary_id = &Apache::lonnet::domain($posscdom,'primary'); |
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if ($cprimary_id eq '') { |
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$errors->{5} = 1; |
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return; |
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} else { |
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my @intdoms; |
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my $internet_names = &Apache::lonnet::get_internet_names($lonhost); |
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if (ref($internet_names) eq 'ARRAY') { |
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@intdoms = @{$internet_names}; |
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} |
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my $cintdom = &Apache::lonnet::internet_dom($cprimary_id); |
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if (($cintdom ne '') && (grep(/^\Q$cintdom\E$/,@intdoms))) { |
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$cdom = $posscdom; |
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} else { |
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$errors->{6} = 1; |
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return; |
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} |
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} |
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my $chome = &Apache::lonnet::homeserver($posscnum,$posscdom); |
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if ($chome =~ /(con_lost|no_host|no_such_host)/) { |
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$errors->{7} = 1; |
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return; |
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} else { |
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$cnum = $posscnum; |
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} |
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} else { |
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$errors->{8} = 1; |
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return; |
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} |
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return ($cdom,$cnum); |
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} |
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# |
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# LON-CAPA as LTI Consumer |
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# |
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# Determine the symb and (optionally) LON-CAPA user for an |
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# instance of an external tool in a course -- either to |
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# to retrieve a roster or store a grade. |
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# |
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# Use the digested symb to lookup the real symb in exttools.db |
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# and the digested userID to lookup the real userID (if needed). |
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# and extract the exttool instance and symb. |
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# |
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sub get_tool_instance { |
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my ($cdom,$cnum,$digsymb,$diguser,$errors) = @_; |
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return unless (ref($errors) eq 'HASH'); |
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my ($marker,$symb,$uname,$udom); |
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my @keys = ($digsymb); |
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if ($diguser) { |
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push(@keys,$diguser); |
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} |
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my %digesthash = &Apache::lonnet::get('exttools',\@keys,$cdom,$cnum); |
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if ($digsymb) { |
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$symb = $digesthash{$digsymb}; |
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if ($symb) { |
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my ($map,$id,$url) = split(/___/,$symb); |
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$marker = (split(m{/},$url))[3]; |
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$marker=~s/\D//g; |
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} else { |
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$errors->{9} = 1; |
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} |
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} |
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if ($diguser) { |
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if ($digesthash{$diguser} =~ /^($match_username):($match_domain)$/) { |
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($uname,$udom) = ($1,$2); |
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} else { |
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$errors->{10} = 1; |
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} |
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return ($marker,$symb,$uname,$udom); |
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} else { |
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return ($marker,$symb); |
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} |
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} |
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# |
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# LON-CAPA as LTI Consumer |
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# |
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# Retrieve data needed to validate a request from a Tool Provider |
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# for a roster or to store a grade for an instance of an external |
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# tool in a LON-CAPA course. |
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# |
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# Retrieve the Consumer key and Consumer secret from the domain |
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# configuration or the Tool Provider ID stored in the |
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# exttool_$marker db file and compare the Consumer key with the |
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# one in the POSTed data. |
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# |
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# Side effect is to populate the $toolsettings hashref with the |
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# contents of the .db file (instance of tool in course) and the |
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# $ltitools hashref with the configuration for the tool (at |
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# domain level). |
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# |
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sub get_tool_secret { |
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my ($key,$marker,$symb,$cdom,$cnum,$toolsettings,$ltitools,$errors) = @_; |
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return unless ((ref($toolsettings) eq 'HASH') && (ref($ltitools) eq 'HASH') && |
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(ref($errors) eq 'HASH')); |
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my ($consumer_secret,$nonce_lifetime); |
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if ($marker) { |
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%{$toolsettings}=&Apache::lonnet::dump('exttool_'.$marker,$cdom,$cnum); |
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if ($toolsettings->{'id'}) { |
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my $idx = $toolsettings->{'id'}; |
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my %lti = &Apache::lonnet::get_domain_lti($cdom,'consumer'); |
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if (ref($lti{$idx}) eq 'HASH') { |
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%{$ltitools} = %{$lti{$idx}}; |
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if ($ltitools->{'key'} eq $key) { |
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$consumer_secret = $ltitools->{'secret'}; |
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$nonce_lifetime = $ltitools->{'lifetime'}; |
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} else { |
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$errors->{11} = 1; |
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return; |
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} |
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} else { |
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$errors->{12} = 1; |
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return; |
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} |
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} else { |
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$errors->{13} = 1; |
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return; |
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} |
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} else { |
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$errors->{14}; |
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return; |
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} |
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return ($consumer_secret,$nonce_lifetime); |
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} |
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# |
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# LON-CAPA as LTI Consumer |
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# |
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# Verify a signed request using the consumer_key and |
# Verify a signed request using the consumer_key and |
# secret for the specific LTI Provider. |
# secret for the specific LTI Provider. |
# |
# |
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sub verify_request { |
sub verify_request { |
my ($params,$protocol,$hostname,$requri,$reqmethod,$consumer_secret,$errors) = @_; |
my ($oauthtype,$protocol,$hostname,$requri,$reqmethod,$consumer_secret,$params, |
return unless (ref($errors) eq 'HASH'); |
$authheaders,$errors) = @_; |
my $request = Net::OAuth->request('request token')->from_hash($params, |
unless (ref($errors) eq 'HASH') { |
request_url => $protocol.'://'.$hostname.$requri, |
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request_method => $reqmethod, |
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consumer_secret => $consumer_secret,); |
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unless ($request->verify()) { |
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$errors->{15} = 1; |
$errors->{15} = 1; |
return; |
return; |
} |
} |
} |
my $request; |
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if ($oauthtype eq 'consumer') { |
# |
my $oauthreq = Net::OAuth->request('consumer'); |
# LON-CAPA as LTI Consumer |
$oauthreq->add_required_message_params('body_hash'); |
# |
$request = $oauthreq->from_authorization_header($authheaders, |
# Verify that an item identifier (either roster request: |
request_url => $protocol.'://'.$hostname.$requri, |
# ext_ims_lis_memberships_id, or grade store: |
request_method => $reqmethod, |
# lis_result_sourcedid) has not been tampered with, and |
consumer_secret => $consumer_secret,); |
# the secret used to create the unique identifier has not |
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# expired. |
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# |
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# Prepending the current secret (if still valid), |
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# or the previous secret (if current one is no longer valid), |
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# to a string composed of the :::-separated components |
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# must generate the result signature in the lis item ID |
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# sent by the Tool Provider. |
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# |
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sub verify_lis_item { |
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my ($sigrec,$context,$digsymb,$diguser,$cdom,$cnum,$toolsettings,$ltitools,$errors) = @_; |
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return unless ((ref($toolsettings) eq 'HASH') && (ref($ltitools) eq 'HASH') && |
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(ref($errors) eq 'HASH')); |
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my ($has_action, $valid_for); |
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if ($context eq 'grade') { |
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$has_action = $ltitools->{'passback'}; |
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$valid_for = $ltitools->{'passbackvalid'} |
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} elsif ($context eq 'roster') { |
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$has_action = $ltitools->{'roster'}; |
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$valid_for = $ltitools->{'rostervalid'}; |
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} |
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if ($has_action) { |
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my $secret; |
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if (($toolsettings->{$context.'secretdate'} + $valid_for) > time) { |
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$secret = $toolsettings->{$context.'secret'}; |
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} else { |
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$secret = $toolsettings->{'old'.$context.'secret'}; |
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} |
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if ($secret) { |
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my $expected_sig; |
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if ($context eq 'grade') { |
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my $uniqid = $digsymb.':::'.$diguser.':::'.$cdom.'_'.$cnum; |
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$expected_sig = (split(/:::/,&get_service_id($secret,$uniqid)))[0]; |
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if ($expected_sig eq $sigrec) { |
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return 1; |
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} else { |
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$errors->{17} = 1; |
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} |
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} elsif ($context eq 'roster') { |
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my $uniqid = $digsymb.':::'.$cdom.'_'.$cnum; |
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$expected_sig = (split(/:::/,&get_service_id($secret,$uniqid)))[0]; |
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if ($expected_sig eq $sigrec) { |
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return 1; |
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} else { |
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$errors->{18} = 1; |
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} |
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} |
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} else { |
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$errors->{19} = 1; |
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} |
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} else { |
} else { |
$errors->{20} = 1; |
$request = Net::OAuth->request('request token')->from_hash($params, |
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request_url => $protocol.'://'.$hostname.$requri, |
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request_method => $reqmethod, |
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consumer_secret => $consumer_secret,); |
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} |
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unless ($request->verify()) { |
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$errors->{15} = 1; |
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return; |
} |
} |
return; |
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} |
} |
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# |
# |
Line 319 sub verify_lis_item {
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Line 130 sub verify_lis_item {
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# |
# |
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sub sign_params { |
sub sign_params { |
my ($url,$key,$secret,$sigmethod,$paramsref) = @_; |
my ($url,$key,$secret,$paramsref,$sigmethod,$type,$callback,$post) = @_; |
return unless (ref($paramsref) eq 'HASH'); |
return unless (ref($paramsref) eq 'HASH'); |
if ($sigmethod eq '') { |
if ($sigmethod eq '') { |
$sigmethod = 'HMAC-SHA1'; |
$sigmethod = 'HMAC-SHA1'; |
} |
} |
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if ($type eq '') { |
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$type = 'request token'; |
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} |
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if ($callback eq '') { |
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$callback = 'about:blank', |
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} |
srand( time() ^ ($$ + ($$ << 15)) ); # Seed rand. |
srand( time() ^ ($$ + ($$ << 15)) ); # Seed rand. |
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))); |
my $request = Net::OAuth->request("request token")->new( |
my $request = Net::OAuth->request($type)->new( |
consumer_key => $key, |
consumer_key => $key, |
consumer_secret => $secret, |
consumer_secret => $secret, |
request_url => $url, |
request_url => $url, |
Line 334 sub sign_params {
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Line 151 sub sign_params {
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signature_method => $sigmethod, |
signature_method => $sigmethod, |
timestamp => time, |
timestamp => time, |
nonce => $nonce, |
nonce => $nonce, |
callback => 'about:blank', |
callback => $callback, |
extra_params => $paramsref, |
extra_params => $paramsref, |
version => '1.0', |
version => '1.0', |
); |
); |
$request->sign; |
$request->sign(); |
return $request->to_hash(); |
if ($post) { |
} |
return $request->to_post_body(); |
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# |
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# LON-CAPA as LTI Consumer |
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# |
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# Generate a signature for a unique identifier (roster request: |
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# ext_ims_lis_memberships_id, or grade store: lis_result_sourcedid) |
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# |
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sub get_service_id { |
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my ($secret,$id) = @_; |
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my $sig = Digest::SHA::sha1_hex($secret.':::'.$id); |
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return $sig.':::'.$id; |
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} |
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# |
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# LON-CAPA as LTI Consumer |
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# |
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# Generate and store the time-limited secret used to create the |
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# signature in a service request identifier (roster request or |
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# grade store). An existing secret past its expiration date |
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# will be stored as old<service name>secret, and a new secret |
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# <service name>secret will be stored. |
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# |
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# Secrets are specific to service name and to the tool instance |
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# (and are stored in the exttool_$marker db file). |
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# The time period a secret remains valid is determined by the |
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# domain configuration for the specific tool and the service. |
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# |
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sub set_service_secret { |
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my ($cdom,$cnum,$marker,$name,$now,$toolsettings,$ltitools) = @_; |
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return unless ((ref($toolsettings) eq 'HASH') && (ref($ltitools) eq 'HASH')); |
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my $warning; |
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my ($needsnew,$oldsecret,$lifetime); |
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if ($name eq 'grade') { |
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$lifetime = $ltitools->{'passbackvalid'} |
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} elsif ($name eq 'roster') { |
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$lifetime = $ltitools->{'rostervalid'}; |
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} |
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if ($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,$marker,$name,$now) eq 'ok') { |
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my $secret = UUID::Tiny::create_uuid_as_string(UUID_V4); |
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$toolsettings->{$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,$name); |
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if ($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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$warning = 'Could not obtain exclusive lock'; |
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} |
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} else { |
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return 'ok'; |
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} |
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return; |
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} |
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# |
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# LON-CAPA as LTI Consumer |
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# |
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# Add a lock key to exttools.db for the instance of an external tool |
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# when generating and storing a service secret. |
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# |
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|
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sub get_tool_lock { |
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my ($cdom,$cnum,$marker,$name,$now) = @_; |
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# get lock for tool for which secret is being set |
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my $lockhash = { |
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$name."\0".$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; |
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my $gotlock = &Apache::lonnet::newput('exttools',$lockhash,$cdom,$cnum); |
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|
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while (($gotlock ne 'ok') && $tries <3) { |
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$tries ++; |
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sleep(1); |
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$gotlock = &Apache::lonnet::newput('exttools',$lockhash,$cdom,$cnum); |
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} |
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return $gotlock; |
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} |
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# |
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# LON-CAPA as LTI Consumer |
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# |
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# Remove a lock key from exttools.db for the instance of an external |
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# tool created when generating and storing a service secret. |
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# |
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sub release_tool_lock { |
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my ($cdom,$cnum,$marker,$name) = @_; |
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# remove lock |
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my @del_lock = ($name."\0".$marker."\0".'lock'); |
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my $dellockoutcome=&Apache::lonnet::del('exttools',\@del_lock,$cdom,$cnum); |
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if ($dellockoutcome ne 'ok') { |
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return 'Warning: failed to release lock for exttool'; |
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} else { |
} else { |
return 'ok'; |
return $request->to_hash(); |
} |
} |
} |
} |
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Line 474 sub release_tool_lock {
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Line 178 sub release_tool_lock {
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# |
# |
|
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sub lti_provider_scope { |
sub lti_provider_scope { |
my ($tail,$cdom,$cnum) = @_; |
my ($tail,$cdom,$cnum,$getunenc) = @_; |
my ($scope,$realuri); |
my ($scope,$realuri,$passkey,$unencsymb); |
if ($tail =~ m{^/uploaded/$cdom/$cnum/(?:default|supplemental)(?:|_\d+)\.(?:sequence|page)(|___\d+___.+)$}) { |
if ($tail =~ m{^/?uploaded/$cdom/$cnum/(?:default|supplemental)(?:|_\d+)\.(?:sequence|page)(|___\d+___.+)$}) { |
my $rest = $1; |
my $rest = $1; |
if ($rest eq '') { |
if ($rest eq '') { |
$scope = 'map'; |
$scope = 'map'; |
$realuri = $tail; |
$realuri = $tail; |
} else { |
} else { |
my ($map,$resid,$url) = &Apache::lonnet::decode_symb($tail); |
my $symb = $tail; |
|
$symb =~ s{^/}{}; |
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my ($map,$resid,$url) = &Apache::lonnet::decode_symb($symb); |
$realuri = &Apache::lonnet::clutter($url); |
$realuri = &Apache::lonnet::clutter($url); |
if ($url =~ /\.sequence$/) { |
if ($url =~ /\.sequence$/) { |
$scope = 'map'; |
$scope = 'map'; |
} else { |
} else { |
$scope = 'resource'; |
$scope = 'resource'; |
$realuri .= '?symb='.$tail; |
$realuri .= '?symb='.$symb; |
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$passkey = $symb; |
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if ($getunenc) { |
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$unencsymb = $symb; |
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} |
} |
} |
} |
} |
} elsif ($tail =~ m{^/res/$match_domain/$match_username/.+\.(?:sequence|page)(|___\d+___.+)$}) { |
} elsif ($tail =~ m{^/?res/$match_domain/$match_username/.+\.(?:sequence|page)(|___\d+___.+)$}) { |
my $rest = $1; |
my $rest = $1; |
if ($rest eq '') { |
if ($rest eq '') { |
$scope = 'map'; |
$scope = 'map'; |
$realuri = $tail; |
$realuri = $tail; |
} else { |
} else { |
my ($map,$resid,$url) = &Apache::lonnet::decode_symb($tail); |
my $symb = $tail; |
|
$symb =~ s{^/?res/}{}; |
|
my ($map,$resid,$url) = &Apache::lonnet::decode_symb($symb); |
$realuri = &Apache::lonnet::clutter($url); |
$realuri = &Apache::lonnet::clutter($url); |
if ($url =~ /\.sequence$/) { |
if ($url =~ /\.sequence$/) { |
$scope = 'map'; |
$scope = 'map'; |
} else { |
} else { |
$scope = 'resource'; |
$scope = 'resource'; |
$realuri .= '?symb='.$tail; |
$realuri .= '?symb='.$symb; |
|
$passkey = $symb; |
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if ($getunenc) { |
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$unencsymb = $symb; |
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} |
} |
} |
} |
} |
} elsif ($tail =~ m{^/tiny/$cdom/(\w+)$}) { |
} elsif ($tail =~ m{^/tiny/$cdom/(\w+)$}) { |
Line 528 sub lti_provider_scope {
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Line 244 sub lti_provider_scope {
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} else { |
} else { |
$scope = 'resource'; |
$scope = 'resource'; |
} |
} |
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$passkey = $symb; |
if ((&Apache::lonnet::EXT('resource.0.encrypturl',$symb) =~ /^yes$/i) && |
if ((&Apache::lonnet::EXT('resource.0.encrypturl',$symb) =~ /^yes$/i) && |
(!$env{'request.role.adv'})) { |
(!$env{'request.role.adv'})) { |
$realuri = &Apache::lonenc::encrypted(&Apache::lonnet::clutter($url)); |
$realuri = &Apache::lonenc::encrypted(&Apache::lonnet::clutter($url)); |
Line 540 sub lti_provider_scope {
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Line 257 sub lti_provider_scope {
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$realuri .= '?symb='.$symb; |
$realuri .= '?symb='.$symb; |
} |
} |
} |
} |
|
if ($getunenc) { |
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$unencsymb = $symb; |
|
} |
} |
} |
} elsif ($tail =~ m{^/$cdom/$cnum$}) { |
} elsif (($tail =~ m{^/$cdom/$cnum$}) || ($tail eq '')) { |
$scope = 'course'; |
$scope = 'course'; |
$realuri = '/adm/navmaps'; |
$realuri = '/adm/navmaps'; |
|
$passkey = ''; |
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} |
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if ($scope eq 'map') { |
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$passkey = $realuri; |
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} |
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if (wantarray) { |
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return ($scope,$realuri,$unencsymb); |
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} else { |
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return $passkey; |
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} |
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} |
|
|
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sub setup_logout_callback { |
|
my ($uname,$udom,$server,$ckey,$secret,$service_url,$idsdir,$protocol,$hostname) = @_; |
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if ($service_url =~ m{^https?://[^/]+/}) { |
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my $digest_user = &Encode::decode('UTF-8',$uname.':'.$udom); |
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my $loginfile = &Digest::SHA::sha1_hex($digest_user).&md5_hex(&md5_hex(time.{}.rand().$$)); |
|
if ((-d $idsdir) && (open(my $fh,'>',"$idsdir/$loginfile"))) { |
|
print $fh "$uname,$udom,$server\n"; |
|
close($fh); |
|
my $callback = 'http://'.$hostname.'/adm/service/logout/'.$loginfile; |
|
my %ltiparams = ( |
|
callback => $callback, |
|
); |
|
my $post = &sign_params($service_url,$ckey,$secret,\%ltiparams, |
|
'','','',1); |
|
|
|
my $ua=new LWP::UserAgent; |
|
$ua->timeout(10); |
|
my $request=new HTTP::Request('POST',$service_url); |
|
$request->content($post); |
|
my $response=$ua->request($request); |
|
} |
|
} |
|
return; |
|
} |
|
|
|
# |
|
# LON-CAPA as LTI Provider |
|
# |
|
# Create a new user in LON-CAPA. If the domain's configuration |
|
# includes rules for format of "official" usernames, those rules |
|
# will apply when determining if a user is to be created. In |
|
# additional if institutional user information is available that |
|
# will be used when creating a new user account. |
|
# |
|
|
|
sub create_user { |
|
my ($ltiref,$uname,$udom,$domdesc,$data,$alerts,$rulematch,$inst_results, |
|
$curr_rules,$got_rules) = @_; |
|
return unless (ref($ltiref) eq 'HASH'); |
|
my $checkhash = { "$uname:$udom" => { 'newuser' => 1, }, }; |
|
my $checks = { 'username' => 1, }; |
|
my ($lcauth,$lcauthparm); |
|
&Apache::loncommon::user_rule_check($checkhash,$checks,$alerts,$rulematch, |
|
$inst_results,$curr_rules,$got_rules); |
|
my ($userchkmsg,$lcauth,$lcauthparm); |
|
my $allowed = 1; |
|
if (ref($alerts->{'username'}) eq 'HASH') { |
|
if (ref($alerts->{'username'}{$udom}) eq 'HASH') { |
|
if ($alerts->{'username'}{$udom}{$uname}) { |
|
if (ref($curr_rules->{$udom}) eq 'HASH') { |
|
$userchkmsg = |
|
&Apache::loncommon::instrule_disallow_msg('username',$domdesc,1). |
|
&Apache::loncommon::user_rule_formats($udom,$domdesc, |
|
$curr_rules->{$udom}{'username'}, |
|
'username'); |
|
} |
|
$allowed = 0; |
|
} |
|
} |
|
} |
|
if ($allowed) { |
|
if (ref($rulematch->{$uname.':'.$udom}) eq 'HASH') { |
|
my $matchedrule = $rulematch->{$uname.':'.$udom}{'username'}; |
|
my ($rules,$ruleorder) = |
|
&Apache::lonnet::inst_userrules($udom,'username'); |
|
if (ref($rules) eq 'HASH') { |
|
if (ref($rules->{$matchedrule}) eq 'HASH') { |
|
$lcauth = $rules->{$matchedrule}{'authtype'}; |
|
$lcauthparm = $rules->{$matchedrule}{'authparm'}; |
|
} |
|
} |
|
} |
|
if ($lcauth eq '') { |
|
$lcauth = $ltiref->{'lcauth'}; |
|
if ($lcauth eq 'internal') { |
|
$lcauthparm = &create_passwd(); |
|
} else { |
|
$lcauthparm = $ltiref->{'lcauthparm'}; |
|
} |
|
} |
|
} else { |
|
return 'notallowed'; |
|
} |
|
my @userinfo = ('firstname','middlename','lastname','generation','permanentemail','id'); |
|
my (%useinstdata,%info); |
|
if (ref($ltiref->{'instdata'}) eq 'ARRAY') { |
|
map { $useinstdata{$_} = 1; } @{$ltiref->{'instdata'}}; |
|
} |
|
foreach my $item (@userinfo) { |
|
if (($useinstdata{$item}) && (ref($inst_results->{$uname.':'.$udom}) eq 'HASH') && |
|
($inst_results->{$uname.':'.$udom}{$item} ne '')) { |
|
$info{$item} = $inst_results->{$uname.':'.$udom}{$item}; |
|
} else { |
|
if ($item eq 'permanentemail') { |
|
if ($data->{'permanentemail'} =~/^[^\@]+\@[^@]+$/) { |
|
$info{$item} = $data->{'permanentemail'}; |
|
} |
|
} elsif (($item eq 'firstname') || ($item eq 'lastname')) { |
|
$info{$item} = $data->{$item}; |
|
} |
|
} |
|
} |
|
if (($info{'middlename'} eq '') && ($data->{'fullname'} ne '')) { |
|
unless ($useinstdata{'middlename'}) { |
|
my $fullname = $data->{'fullname'}; |
|
if ($info{'firstname'}) { |
|
$fullname =~ s/^\s*\Q$info{'firstname'}\E\s*//i; |
|
} |
|
if ($info{'lastname'}) { |
|
$fullname =~ s/\s*\Q$info{'lastname'}\E\s*$//i; |
|
} |
|
if ($fullname ne '') { |
|
$fullname =~ s/^\s+|\s+$//g; |
|
if ($fullname ne '') { |
|
$info{'middlename'} = $fullname; |
|
} |
|
} |
|
} |
|
} |
|
if (ref($inst_results->{$uname.':'.$udom}{'inststatus'}) eq 'ARRAY') { |
|
my @inststatuses = @{$inst_results->{$uname.':'.$udom}{'inststatus'}}; |
|
$info{'inststatus'} = join(':',map { &escape($_); } @inststatuses); |
|
} |
|
my $result = |
|
&Apache::lonnet::modifyuser($udom,$uname,$info{'id'}, |
|
$lcauth,$lcauthparm,$info{'firstname'}, |
|
$info{'middlename'},$info{'lastname'}, |
|
$info{'generation'},undef,undef, |
|
$info{'permanentemail'},$info{'inststatus'}); |
|
return $result; |
|
} |
|
|
|
# |
|
# LON-CAPA as LTI Provider |
|
# |
|
# Create a password for a new user if the authentication |
|
# type to assign to new users created following LTI launch is |
|
# to be LON-CAPA "internal". |
|
# |
|
|
|
sub create_passwd { |
|
my $passwd = ''; |
|
srand( time() ^ ($$ + ($$ << 15)) ); # Seed rand. |
|
my @letts = ("a".."z"); |
|
for (my $i=0; $i<8; $i++) { |
|
my $lettnum = int(rand(2)); |
|
my $item = ''; |
|
if ($lettnum) { |
|
$item = $letts[int(rand(26))]; |
|
my $uppercase = int(rand(2)); |
|
if ($uppercase) { |
|
$item =~ tr/a-z/A-Z/; |
|
} |
|
} else { |
|
$item = int(rand(10)); |
|
} |
|
$passwd .= $item; |
|
} |
|
return ($passwd); |
|
} |
|
|
|
# |
|
# LON-CAPA as LTI Provider |
|
# |
|
# Enroll a user in a LON-CAPA course, with the specified role and (optional) |
|
# section. If this is a self-enroll case, i.e., a user launched the LTI tool |
|
# in the Consumer, user privs will be added to the user's environment for |
|
# the new role. |
|
# |
|
# If this is a self-enroll case, a Course Coordinator role will only be assigned |
|
# if the current user is also the course owner. |
|
# |
|
|
|
sub enrolluser { |
|
my ($udom,$uname,$role,$cdom,$cnum,$sec,$start,$end,$selfenroll) = @_; |
|
my $enrollresult; |
|
my $area = "/$cdom/$cnum"; |
|
if (($role ne 'cc') && ($role ne 'co') && ($sec ne '')) { |
|
$area .= '/'.$sec; |
|
} |
|
my $spec = $role.'.'.$area; |
|
my $instcid; |
|
if ($role eq 'st') { |
|
$enrollresult = |
|
&Apache::lonnet::modify_student_enrollment($udom,$uname,undef,undef,undef, |
|
undef,undef,$sec,$end,$start, |
|
'ltienroll',undef,$cdom.'_'.$cnum, |
|
$selfenroll,'ltienroll','',$instcid); |
|
} elsif ($role =~ /^(cc|in|ta|ep)$/) { |
|
$enrollresult = |
|
&Apache::lonnet::assignrole($udom,$uname,$area,$role,$end,$start, |
|
undef,$selfenroll,'ltienroll'); |
|
} |
|
if ($enrollresult eq 'ok') { |
|
if ($selfenroll) { |
|
my (%userroles,%newrole,%newgroups); |
|
&Apache::lonnet::standard_roleprivs(\%newrole,$role,$cdom,$spec,$cnum, |
|
$area); |
|
&Apache::lonnet::set_userprivs(\%userroles,\%newrole,\%newgroups); |
|
$userroles{'user.role.'.$spec} = $start.'.'.$end; |
|
&Apache::lonnet::appenv(\%userroles,[$role,'cm']); |
|
} |
|
} |
|
return $enrollresult; |
|
} |
|
|
|
# |
|
# LON-CAPA as LTI Provider |
|
# |
|
# Gather a list of available LON-CAPA roles derived |
|
# from a comma separated list of LTI roles. |
|
# |
|
# Which LON-CAPA roles are assignable by the current user |
|
# and how LTI roles map to LON-CAPA roles (as defined in |
|
# the domain configuration for the specific Consumer) are |
|
# factored in when compiling the list of available roles. |
|
# |
|
# Inputs: 3 |
|
# $rolestr - comma separated list of LTI roles. |
|
# $allowedroles - reference to array of assignable LC roles |
|
# $maproles - ref to HASH of mapping of LTI roles to LC roles |
|
# |
|
# Outputs: 2 |
|
# (a) reference to array of available LC roles. |
|
# (b) reference to array of LTI roles. |
|
# |
|
|
|
sub get_lc_roles { |
|
my ($rolestr,$allowedroles,$maproles) = @_; |
|
my (@ltiroles,@lcroles); |
|
my @ltiroleorder = ('Instructor','TeachingAssistant','Mentor','Learner'); |
|
if ($rolestr =~ /,/) { |
|
my @possltiroles = split(/\s*,\s*/,$rolestr); |
|
foreach my $ltirole (@ltiroleorder) { |
|
if (grep(/^\Q$ltirole\E$/,@possltiroles)) { |
|
push(@ltiroles,$ltirole); |
|
} |
|
} |
|
} else { |
|
my $singlerole = $rolestr; |
|
$singlerole =~ s/^\s|\s+$//g; |
|
if ($singlerole ne '') { |
|
if (grep(/^\Q$singlerole\E$/,@ltiroleorder)) { |
|
@ltiroles = ($singlerole); |
|
} |
|
} |
|
} |
|
if (@ltiroles) { |
|
my %possroles; |
|
map { $possroles{$maproles->{$_}} = 1; } @ltiroles; |
|
if (keys(%possroles) > 0) { |
|
if (ref($allowedroles) eq 'ARRAY') { |
|
foreach my $item (@{$allowedroles}) { |
|
if (($item eq 'co') || ($item eq 'cc')) { |
|
if ($possroles{'cc'}) { |
|
push(@lcroles,$item); |
|
} |
|
} elsif ($possroles{$item}) { |
|
push(@lcroles,$item); |
|
} |
|
} |
|
} |
|
} |
} |
} |
return ($scope,$realuri); |
return (\@lcroles,\@ltiroles); |
} |
} |
|
|
1; |
1; |