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MDL-66920 mod_lti: Allow usage of both JWKS URI and Public Key

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- Changed mod_lti edit_form.php to add necessary fields.
- Added configuration field 'keytype' that can be RSA_KEY or JWK_KEYSET, defaulting to RSA_KEY if none is found.
- Changed mod_lti locallib.php to add the usage of jwk in the verifications of jwt's.
- Changed mod_lti token.php to call the verification function from locallib.php.
- Caches the keyset endpoint content of any given lti tool.
- Updated language files to accommodate new functionalities.
- Added test method for JWK functionalities.
- Added test_keyset file in the fixtures folder.
- Bumped the mod_lti version to 2020022200.
This commit is contained in:
carlos 2020-04-03 11:42:53 -03:00
parent a2a13f2786
commit 32591786d9
8 changed files with 181 additions and 20 deletions
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20
mod/lti/edit_form.php
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@ -129,12 +129,30 @@ class mod_lti_edit_types_form extends moodleform {
$mform->setType('lti_clientid', PARAM_TEXT);
}
$mform->addElement('textarea', 'lti_publickey', get_string('publickey', 'lti'), array('rows' => 8, 'cols' => 60));
$keyoptions = [
LTI_RSA_KEY => get_string('keytype_rsa', 'lti'),
LTI_JWK_KEYSET => get_string('keytype_keyset', 'lti'),
];
$mform->addElement('select', 'lti_keytype', get_string('keytype', 'lti'), $keyoptions);
$mform->setType('lti_keytype', PARAM_TEXT);
$mform->addHelpButton('lti_keytype', 'keytype', 'lti');
$mform->setDefault('lti_keytype', LTI_JWK_KEYSET);
$mform->hideIf('lti_keytype', 'lti_ltiversion', 'neq', LTI_VERSION_1P3);
$mform->addElement('textarea', 'lti_publickey', get_string('publickey', 'lti'), ['rows' => 8, 'cols' => 60]);
$mform->setType('lti_publickey', PARAM_TEXT);
$mform->addHelpButton('lti_publickey', 'publickey', 'lti');
$mform->hideIf('lti_publickey', 'lti_keytype', 'neq', LTI_RSA_KEY);
$mform->hideIf('lti_publickey', 'lti_ltiversion', 'neq', LTI_VERSION_1P3);
$mform->setForceLtr('lti_publickey');
$mform->addElement('text', 'lti_publickeyset', get_string('publickeyset', 'lti'), ['size' => '64']);
$mform->setType('lti_publickeyset', PARAM_TEXT);
$mform->addHelpButton('lti_publickeyset', 'publickeyset', 'lti');
$mform->hideIf('lti_publickeyset', 'lti_keytype', 'neq', LTI_JWK_KEYSET);
$mform->hideIf('lti_publickeyset', 'lti_ltiversion', 'neq', LTI_VERSION_1P3);
$mform->setForceLtr('lti_publickeyset');
$mform->addElement('text', 'lti_initiatelogin', get_string('initiatelogin', 'lti'), array('size' => '64'));
$mform->setType('lti_initiatelogin', PARAM_URL);
$mform->addHelpButton('lti_initiatelogin', 'initiatelogin', 'lti');