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See Release Notes
Long Term Support Release

  • Bug fixes for general core bugs in 3.9.x will end* 10 May 2021 (12 months).
  • Bug fixes for security issues in 3.9.x will end* 8 May 2023 (36 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.

Differences Between: [Versions 39 and 310] [Versions 39 and 311] [Versions 39 and 400] [Versions 39 and 401] [Versions 39 and 402] [Versions 39 and 403]

   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  //
  17  // This file is part of BasicLTI4Moodle
  18  //
  19  // BasicLTI4Moodle is an IMS BasicLTI (Basic Learning Tools for Interoperability)
  20  // consumer for Moodle 1.9 and Moodle 2.0. BasicLTI is a IMS Standard that allows web
  21  // based learning tools to be easily integrated in LMS as native ones. The IMS BasicLTI
  22  // specification is part of the IMS standard Common Cartridge 1.1 Sakai and other main LMS
  23  // are already supporting or going to support BasicLTI. This project Implements the consumer
  24  // for Moodle. Moodle is a Free Open source Learning Management System by Martin Dougiamas.
  25  // BasicLTI4Moodle is a project iniciated and leaded by Ludo(Marc Alier) and Jordi Piguillem
  26  // at the GESSI research group at UPC.
  27  // SimpleLTI consumer for Moodle is an implementation of the early specification of LTI
  28  // by Charles Severance (Dr Chuck) htp://dr-chuck.com , developed by Jordi Piguillem in a
  29  // Google Summer of Code 2008 project co-mentored by Charles Severance and Marc Alier.
  30  //
  31  // BasicLTI4Moodle is copyright 2009 by Marc Alier Forment, Jordi Piguillem and Nikolas Galanis
  32  // of the Universitat Politecnica de Catalunya http://www.upc.edu
  33  // Contact info: Marc Alier Forment granludo @ gmail.com or marc.alier @ upc.edu.
  34  
  35  /**
  36   * This file contains unit tests for (some of) lti/locallib.php
  37   *
  38   * @package    mod_lti
  39   * @category   phpunit
  40   * @copyright  2009 Marc Alier, Jordi Piguillem, Nikolas Galanis
  41   * @copyright  2009 Universitat Politecnica de Catalunya http://www.upc.edu
  42   * @author     Charles Severance csev@unmich.edu
  43   * @author     Marc Alier (marc.alier@upc.edu)
  44   * @author     Jordi Piguillem
  45   * @author     Nikolas Galanis
  46   * @author     Chris Scribner
  47   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  48   */
  49  
  50  defined('MOODLE_INTERNAL') || die;
  51  
  52  global $CFG;
  53  require_once($CFG->dirroot . '/mod/lti/locallib.php');
  54  require_once($CFG->dirroot . '/mod/lti/servicelib.php');
  55  
  56  /**
  57   * Local library tests
  58   *
  59   * @package    mod_lti
  60   * @copyright  Copyright (c) 2012 Moodlerooms Inc. (http://www.moodlerooms.com)
  61   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  62   */
  63  class mod_lti_locallib_testcase extends advanced_testcase {
  64  
  65      public function test_split_custom_parameters() {
  66          $this->resetAfterTest();
  67  
  68          $tool = new stdClass();
  69          $tool->enabledcapability = '';
  70          $tool->parameter = '';
  71          $tool->ltiversion = 'LTI-1p0';
  72          $this->assertEquals(lti_split_custom_parameters(null, $tool, array(), "x=1\ny=2", false),
  73              array('custom_x' => '1', 'custom_y' => '2'));
  74  
  75          // Check params with caps.
  76          $this->assertEquals(lti_split_custom_parameters(null, $tool, array(), "X=1", true),
  77              array('custom_x' => '1', 'custom_X' => '1'));
  78  
  79          // Removed repeat of previous test with a semicolon separator.
  80  
  81          $this->assertEquals(lti_split_custom_parameters(null, $tool, array(), 'Review:Chapter=1.2.56', true),
  82              array(
  83                  'custom_review_chapter' => '1.2.56',
  84                  'custom_Review:Chapter' => '1.2.56'));
  85  
  86          $this->assertEquals(lti_split_custom_parameters(null, $tool, array(),
  87              'Complex!@#$^*(){}[]KEY=Complex!@#$^*;(){}[]½Value', true),
  88              array(
  89                  'custom_complex____________key' => 'Complex!@#$^*;(){}[]½Value',
  90                  'custom_Complex!@#$^*(){}[]KEY' => 'Complex!@#$^*;(){}[]½Value'));
  91  
  92          // Test custom parameter that returns $USER property.
  93          $user = $this->getDataGenerator()->create_user(array('middlename' => 'SOMETHING'));
  94          $this->setUser($user);
  95          $this->assertEquals(array('custom_x' => '1', 'custom_y' => 'SOMETHING'),
  96              lti_split_custom_parameters(null, $tool, array(), "x=1\ny=\$Person.name.middle", false));
  97      }
  98  
  99      /**
 100       * This test has been disabled because the test-tool is
 101       * being moved and probably it won't work anymore for this.
 102       * We should be testing here local stuff only and leave
 103       * outside-checks to the conformance tests. MDL-30347
 104       */
 105      public function disabled_test_sign_parameters() {
 106          $correct = array ( 'context_id' => '12345', 'context_label' => 'SI124', 'context_title' => 'Social Computing',
 107              'ext_submit' => 'Click Me', 'lti_message_type' => 'basic-lti-launch-request', 'lti_version' => 'LTI-1p0',
 108              'oauth_consumer_key' => 'lmsng.school.edu', 'oauth_nonce' => '47458148e33a8f9dafb888c3684cf476',
 109              'oauth_signature' => 'qWgaBIezihCbeHgcwUy14tZcyDQ=', 'oauth_signature_method' => 'HMAC-SHA1',
 110              'oauth_timestamp' => '1307141660', 'oauth_version' => '1.0', 'resource_link_id' => '123',
 111              'resource_link_title' => 'Weekly Blog', 'roles' => 'Learner', 'tool_consumer_instance_guid' => 'lmsng.school.edu',
 112              'user_id' => '789');
 113  
 114          $requestparams = array('resource_link_id' => '123', 'resource_link_title' => 'Weekly Blog', 'user_id' => '789',
 115              'roles' => 'Learner', 'context_id' => '12345', 'context_label' => 'SI124', 'context_title' => 'Social Computing');
 116  
 117          $parms = lti_sign_parameters($requestparams, 'http://www.imsglobal.org/developer/LTI/tool.php', 'POST',
 118              'lmsng.school.edu', 'secret', 'Click Me', 'lmsng.school.edu' /*, $org_desc*/);
 119          $this->assertTrue(isset($parms['oauth_nonce']));
 120          $this->assertTrue(isset($parms['oauth_signature']));
 121          $this->assertTrue(isset($parms['oauth_timestamp']));
 122  
 123          // Those things that are hard to mock.
 124          $correct['oauth_nonce'] = $parms['oauth_nonce'];
 125          $correct['oauth_signature'] = $parms['oauth_signature'];
 126          $correct['oauth_timestamp'] = $parms['oauth_timestamp'];
 127          ksort($parms);
 128          ksort($correct);
 129          $this->assertEquals($parms, $correct);
 130      }
 131  
 132      /**
 133       * This test has been disabled because, since its creation,
 134       * the sourceId generation has changed and surely this is outdated.
 135       * Some day these should be replaced by proper tests, but until then
 136       * conformance tests say this is working. MDL-30347
 137       */
 138      public function disabled_test_parse_grade_replace_message() {
 139          $message = '
 140              <imsx_POXEnvelopeRequest xmlns = "http://www.imsglobal.org/services/ltiv1p1/xsd/imsoms_v1p0">
 141                <imsx_POXHeader>
 142                  <imsx_POXRequestHeaderInfo>
 143                    <imsx_version>V1.0</imsx_version>
 144                    <imsx_messageIdentifier>999998123</imsx_messageIdentifier>
 145                  </imsx_POXRequestHeaderInfo>
 146                </imsx_POXHeader>
 147                <imsx_POXBody>
 148                  <replaceResultRequest>
 149                    <resultRecord>
 150                      <sourcedGUID>
 151                        <sourcedId>' .
 152              '{&quot;data&quot;:{&quot;instanceid&quot;:&quot;2&quot;,&quot;userid&quot;:&quot;2&quot;},&quot;hash&quot;:' .
 153              '&quot;0b5078feab59b9938c333ceaae21d8e003a7b295e43cdf55338445254421076b&quot;}' .
 154                        '</sourcedId>
 155                      </sourcedGUID>
 156                      <result>
 157                        <resultScore>
 158                          <language>en-us</language>
 159                          <textString>0.92</textString>
 160                        </resultScore>
 161                      </result>
 162                    </resultRecord>
 163                  </replaceResultRequest>
 164                </imsx_POXBody>
 165              </imsx_POXEnvelopeRequest>
 166  ';
 167  
 168          $parsed = lti_parse_grade_replace_message(new SimpleXMLElement($message));
 169  
 170          $this->assertEquals($parsed->userid, '2');
 171          $this->assertEquals($parsed->instanceid, '2');
 172          $this->assertEquals($parsed->sourcedidhash, '0b5078feab59b9938c333ceaae21d8e003a7b295e43cdf55338445254421076b');
 173  
 174          $ltiinstance = (object)array('servicesalt' => '4e5fcc06de1d58.44963230');
 175  
 176          lti_verify_sourcedid($ltiinstance, $parsed);
 177      }
 178  
 179      public function test_lti_ensure_url_is_https() {
 180          $this->assertEquals('https://moodle.org', lti_ensure_url_is_https('http://moodle.org'));
 181          $this->assertEquals('https://moodle.org', lti_ensure_url_is_https('moodle.org'));
 182          $this->assertEquals('https://moodle.org', lti_ensure_url_is_https('https://moodle.org'));
 183      }
 184  
 185      /**
 186       * Test lti_get_url_thumbprint against various URLs
 187       */
 188      public function test_lti_get_url_thumbprint() {
 189          // Note: trailing and double slash are expected right now.  Must evaluate if it must be removed at some point.
 190          $this->assertEquals('moodle.org/', lti_get_url_thumbprint('http://MOODLE.ORG'));
 191          $this->assertEquals('moodle.org/', lti_get_url_thumbprint('http://www.moodle.org'));
 192          $this->assertEquals('moodle.org/', lti_get_url_thumbprint('https://www.moodle.org'));
 193          $this->assertEquals('moodle.org/', lti_get_url_thumbprint('moodle.org'));
 194          $this->assertEquals('moodle.org//this/is/moodle', lti_get_url_thumbprint('http://moodle.org/this/is/moodle'));
 195          $this->assertEquals('moodle.org//this/is/moodle', lti_get_url_thumbprint('https://moodle.org/this/is/moodle'));
 196          $this->assertEquals('moodle.org//this/is/moodle', lti_get_url_thumbprint('moodle.org/this/is/moodle'));
 197          $this->assertEquals('moodle.org//this/is/moodle', lti_get_url_thumbprint('moodle.org/this/is/moodle?'));
 198          $this->assertEquals('moodle.org//this/is/moodle?foo=bar', lti_get_url_thumbprint('moodle.org/this/is/moodle?foo=bar'));
 199      }
 200  
 201      /*
 202       * Verify that lti_build_request does handle resource_link_id as expected
 203       */
 204      public function test_lti_buid_request_resource_link_id() {
 205          $this->resetAfterTest();
 206  
 207          self::setUser($this->getDataGenerator()->create_user());
 208          $course   = $this->getDataGenerator()->create_course();
 209          $instance = $this->getDataGenerator()->create_module('lti', array(
 210              'intro'       => "<p>This</p>\nhas\r\n<p>some</p>\nnew\n\rlines",
 211              'introformat' => FORMAT_HTML,
 212              'course'      => $course->id,
 213          ));
 214  
 215          $typeconfig = array(
 216              'acceptgrades'     => 1,
 217              'forcessl'         => 0,
 218              'sendname'         => 2,
 219              'sendemailaddr'    => 2,
 220              'customparameters' => '',
 221          );
 222  
 223          // Normal call, we expect $instance->id to be used as resource_link_id.
 224          $params = lti_build_request($instance, $typeconfig, $course, null);
 225          $this->assertSame($instance->id, $params['resource_link_id']);
 226  
 227          // If there is a resource_link_id set, it gets precedence.
 228          $instance->resource_link_id = $instance->id + 99;
 229          $params = lti_build_request($instance, $typeconfig, $course, null);
 230          $this->assertSame($instance->resource_link_id, $params['resource_link_id']);
 231  
 232          // With none set, resource_link_id is not set either.
 233          unset($instance->id);
 234          unset($instance->resource_link_id);
 235          $params = lti_build_request($instance, $typeconfig, $course, null);
 236          $this->assertArrayNotHasKey('resource_link_id', $params);
 237      }
 238  
 239      /**
 240       * Test lti_build_request's resource_link_description and ensure
 241       * that the newlines in the description are correct.
 242       */
 243      public function test_lti_build_request_description() {
 244          $this->resetAfterTest();
 245  
 246          self::setUser($this->getDataGenerator()->create_user());
 247          $course   = $this->getDataGenerator()->create_course();
 248          $instance = $this->getDataGenerator()->create_module('lti', array(
 249              'intro'       => "<p>This</p>\nhas\r\n<p>some</p>\nnew\n\rlines",
 250              'introformat' => FORMAT_HTML,
 251              'course'      => $course->id,
 252          ));
 253  
 254          $typeconfig = array(
 255              'acceptgrades'     => 1,
 256              'forcessl'         => 0,
 257              'sendname'         => 2,
 258              'sendemailaddr'    => 2,
 259              'customparameters' => '',
 260          );
 261  
 262          $params = lti_build_request($instance, $typeconfig, $course, null);
 263  
 264          $ncount = substr_count($params['resource_link_description'], "\n");
 265          $this->assertGreaterThan(0, $ncount);
 266  
 267          $rcount = substr_count($params['resource_link_description'], "\r");
 268          $this->assertGreaterThan(0, $rcount);
 269  
 270          $this->assertEquals($ncount, $rcount, 'The number of \n characters should be the same as the number of \r characters');
 271  
 272          $rncount = substr_count($params['resource_link_description'], "\r\n");
 273          $this->assertGreaterThan(0, $rncount);
 274  
 275          $this->assertEquals($ncount, $rncount, 'All newline characters should be a combination of \r\n');
 276      }
 277  
 278      /**
 279       * Tests lti_prepare_type_for_save's handling of the "Force SSL" configuration.
 280       */
 281      public function test_lti_prepare_type_for_save_forcessl() {
 282          $type = new stdClass();
 283          $config = new stdClass();
 284  
 285          // Try when the forcessl config property is not set.
 286          lti_prepare_type_for_save($type, $config);
 287          $this->assertObjectHasAttribute('lti_forcessl', $config);
 288          $this->assertEquals(0, $config->lti_forcessl);
 289          $this->assertEquals(0, $type->forcessl);
 290  
 291          // Try when forcessl config property is set.
 292          $config->lti_forcessl = 1;
 293          lti_prepare_type_for_save($type, $config);
 294          $this->assertObjectHasAttribute('lti_forcessl', $config);
 295          $this->assertEquals(1, $config->lti_forcessl);
 296          $this->assertEquals(1, $type->forcessl);
 297  
 298          // Try when forcessl config property is set to 0.
 299          $config->lti_forcessl = 0;
 300          lti_prepare_type_for_save($type, $config);
 301          $this->assertObjectHasAttribute('lti_forcessl', $config);
 302          $this->assertEquals(0, $config->lti_forcessl);
 303          $this->assertEquals(0, $type->forcessl);
 304      }
 305  
 306      /**
 307       * Tests lti_load_type_from_cartridge and lti_load_type_if_cartridge
 308       */
 309      public function test_lti_load_type_from_cartridge() {
 310          $type = new stdClass();
 311          $type->lti_toolurl = $this->getExternalTestFileUrl('/ims_cartridge_basic_lti_link.xml');
 312  
 313          lti_load_type_if_cartridge($type);
 314  
 315          $this->assertEquals('Example tool', $type->lti_typename);
 316          $this->assertEquals('Example tool description', $type->lti_description);
 317          $this->assertEquals('http://www.example.com/lti/provider.php', $type->lti_toolurl);
 318          $this->assertEquals('http://download.moodle.org/unittest/test.jpg', $type->lti_icon);
 319          $this->assertEquals('https://download.moodle.org/unittest/test.jpg', $type->lti_secureicon);
 320      }
 321  
 322      /**
 323       * Tests lti_load_tool_from_cartridge and lti_load_tool_if_cartridge
 324       */
 325      public function test_lti_load_tool_from_cartridge() {
 326          $lti = new stdClass();
 327          $lti->toolurl = $this->getExternalTestFileUrl('/ims_cartridge_basic_lti_link.xml');
 328  
 329          lti_load_tool_if_cartridge($lti);
 330  
 331          $this->assertEquals('Example tool', $lti->name);
 332          $this->assertEquals('Example tool description', $lti->intro);
 333          $this->assertEquals('http://www.example.com/lti/provider.php', $lti->toolurl);
 334          $this->assertEquals('https://www.example.com/lti/provider.php', $lti->securetoolurl);
 335          $this->assertEquals('http://download.moodle.org/unittest/test.jpg', $lti->icon);
 336          $this->assertEquals('https://download.moodle.org/unittest/test.jpg', $lti->secureicon);
 337      }
 338  
 339      /**
 340       * Tests for lti_build_content_item_selection_request().
 341       */
 342      public function test_lti_build_content_item_selection_request() {
 343          $this->resetAfterTest();
 344  
 345          $this->setAdminUser();
 346          // Create a tool proxy.
 347          $proxy = mod_lti_external::create_tool_proxy('Test proxy', $this->getExternalTestFileUrl('/test.html'), array(), array());
 348  
 349          // Create a tool type, associated with that proxy.
 350          $type = new stdClass();
 351          $data = new stdClass();
 352          $data->lti_contentitem = true;
 353          $type->state = LTI_TOOL_STATE_CONFIGURED;
 354          $type->name = "Test tool";
 355          $type->description = "Example description";
 356          $type->toolproxyid = $proxy->id;
 357          $type->baseurl = $this->getExternalTestFileUrl('/test.html');
 358  
 359          $typeid = lti_add_type($type, $data);
 360  
 361          $typeconfig = lti_get_type_config($typeid);
 362  
 363          $course = $this->getDataGenerator()->create_course();
 364          $returnurl = new moodle_url('/');
 365  
 366          // Default parameters.
 367          $result = lti_build_content_item_selection_request($typeid, $course, $returnurl);
 368          $this->assertNotEmpty($result);
 369          $this->assertNotEmpty($result->params);
 370          $this->assertNotEmpty($result->url);
 371          $params = $result->params;
 372          $url = $result->url;
 373          $this->assertEquals($typeconfig['toolurl'], $url);
 374          $this->assertEquals('ContentItemSelectionRequest', $params['lti_message_type']);
 375          $this->assertEquals(LTI_VERSION_1, $params['lti_version']);
 376          $this->assertEquals('application/vnd.ims.lti.v1.ltilink', $params['accept_media_types']);
 377          $this->assertEquals('frame,iframe,window', $params['accept_presentation_document_targets']);
 378          $this->assertEquals($returnurl->out(false), $params['content_item_return_url']);
 379          $this->assertEquals('false', $params['accept_unsigned']);
 380          $this->assertEquals('false', $params['accept_multiple']);
 381          $this->assertEquals('false', $params['accept_copy_advice']);
 382          $this->assertEquals('false', $params['auto_create']);
 383          $this->assertEquals($type->name, $params['title']);
 384          $this->assertFalse(isset($params['resource_link_id']));
 385          $this->assertFalse(isset($params['resource_link_title']));
 386          $this->assertFalse(isset($params['resource_link_description']));
 387          $this->assertFalse(isset($params['launch_presentation_return_url']));
 388          $this->assertFalse(isset($params['lis_result_sourcedid']));
 389          $this->assertEquals($params['tool_consumer_instance_guid'], 'www.example.com');
 390  
 391          // Custom parameters.
 392          $title = 'My custom title';
 393          $text = 'This is the tool description';
 394          $mediatypes = ['image/*', 'video/*'];
 395          $targets = ['embed', 'iframe'];
 396          $result = lti_build_content_item_selection_request($typeid, $course, $returnurl, $title, $text, $mediatypes, $targets,
 397              true, true, true, true, true);
 398          $this->assertNotEmpty($result);
 399          $this->assertNotEmpty($result->params);
 400          $this->assertNotEmpty($result->url);
 401          $params = $result->params;
 402          $this->assertEquals(implode(',', $mediatypes), $params['accept_media_types']);
 403          $this->assertEquals(implode(',', $targets), $params['accept_presentation_document_targets']);
 404          $this->assertEquals('true', $params['accept_unsigned']);
 405          $this->assertEquals('true', $params['accept_multiple']);
 406          $this->assertEquals('true', $params['accept_copy_advice']);
 407          $this->assertEquals('true', $params['auto_create']);
 408          $this->assertEquals($title, $params['title']);
 409          $this->assertEquals($text, $params['text']);
 410  
 411          // Invalid flag values.
 412          $result = lti_build_content_item_selection_request($typeid, $course, $returnurl, $title, $text, $mediatypes, $targets,
 413              'aa', -1, 0, 1, 0xabc);
 414          $this->assertNotEmpty($result);
 415          $this->assertNotEmpty($result->params);
 416          $this->assertNotEmpty($result->url);
 417          $params = $result->params;
 418          $this->assertEquals(implode(',', $mediatypes), $params['accept_media_types']);
 419          $this->assertEquals(implode(',', $targets), $params['accept_presentation_document_targets']);
 420          $this->assertEquals('false', $params['accept_unsigned']);
 421          $this->assertEquals('false', $params['accept_multiple']);
 422          $this->assertEquals('false', $params['accept_copy_advice']);
 423          $this->assertEquals('false', $params['auto_create']);
 424          $this->assertEquals($title, $params['title']);
 425          $this->assertEquals($text, $params['text']);
 426      }
 427  
 428      /**
 429       * Test for lti_build_content_item_selection_request() with nonexistent tool type ID parameter.
 430       */
 431      public function test_lti_build_content_item_selection_request_invalid_tooltype() {
 432          $this->resetAfterTest();
 433  
 434          $this->setAdminUser();
 435          $course = $this->getDataGenerator()->create_course();
 436          $returnurl = new moodle_url('/');
 437  
 438          // Should throw Exception on non-existent tool type.
 439          $this->expectException('moodle_exception');
 440          lti_build_content_item_selection_request(1, $course, $returnurl);
 441      }
 442  
 443      /**
 444       * Test for lti_build_content_item_selection_request() with invalid media types parameter.
 445       */
 446      public function test_lti_build_content_item_selection_request_invalid_mediatypes() {
 447          $this->resetAfterTest();
 448  
 449          $this->setAdminUser();
 450  
 451          // Create a tool type, associated with that proxy.
 452          $type = new stdClass();
 453          $data = new stdClass();
 454          $data->lti_contentitem = true;
 455          $type->state = LTI_TOOL_STATE_CONFIGURED;
 456          $type->name = "Test tool";
 457          $type->description = "Example description";
 458          $type->baseurl = $this->getExternalTestFileUrl('/test.html');
 459  
 460          $typeid = lti_add_type($type, $data);
 461          $course = $this->getDataGenerator()->create_course();
 462          $returnurl = new moodle_url('/');
 463  
 464          // Should throw coding_exception on non-array media types.
 465          $mediatypes = 'image/*,video/*';
 466          $this->expectException('coding_exception');
 467          lti_build_content_item_selection_request($typeid, $course, $returnurl, '', '', $mediatypes);
 468      }
 469  
 470      /**
 471       * Test for lti_build_content_item_selection_request() with invalid presentation targets parameter.
 472       */
 473      public function test_lti_build_content_item_selection_request_invalid_presentationtargets() {
 474          $this->resetAfterTest();
 475  
 476          $this->setAdminUser();
 477  
 478          // Create a tool type, associated with that proxy.
 479          $type = new stdClass();
 480          $data = new stdClass();
 481          $data->lti_contentitem = true;
 482          $type->state = LTI_TOOL_STATE_CONFIGURED;
 483          $type->name = "Test tool";
 484          $type->description = "Example description";
 485          $type->baseurl = $this->getExternalTestFileUrl('/test.html');
 486  
 487          $typeid = lti_add_type($type, $data);
 488          $course = $this->getDataGenerator()->create_course();
 489          $returnurl = new moodle_url('/');
 490  
 491          // Should throw coding_exception on non-array presentation targets.
 492          $targets = 'frame,iframe';
 493          $this->expectException('coding_exception');
 494          lti_build_content_item_selection_request($typeid, $course, $returnurl, '', '', [], $targets);
 495      }
 496  
 497      /**
 498       * Provider for test_lti_get_best_tool_by_url.
 499       *
 500       * @return array of [urlToTest, expectedTool, allTools]
 501       */
 502      public function lti_get_best_tool_by_url_provider() {
 503          $tools = [
 504              (object) [
 505                  'name' => 'Here',
 506                  'baseurl' => 'https://example.com/i/am/?where=here',
 507                  'tooldomain' => 'example.com',
 508                  'state' => LTI_TOOL_STATE_CONFIGURED,
 509                  'course' => SITEID
 510              ],
 511              (object) [
 512                  'name' => 'There',
 513                  'baseurl' => 'https://example.com/i/am/?where=there',
 514                  'tooldomain' => 'example.com',
 515                  'state' => LTI_TOOL_STATE_CONFIGURED,
 516                  'course' => SITEID
 517              ],
 518              (object) [
 519                  'name' => 'Not here',
 520                  'baseurl' => 'https://example.com/i/am/?where=not/here',
 521                  'tooldomain' => 'example.com',
 522                  'state' => LTI_TOOL_STATE_CONFIGURED,
 523                  'course' => SITEID
 524              ],
 525              (object) [
 526                  'name' => 'Here',
 527                  'baseurl' => 'https://example.com/i/am/',
 528                  'tooldomain' => 'example.com',
 529                  'state' => LTI_TOOL_STATE_CONFIGURED,
 530                  'course' => SITEID
 531              ],
 532              (object) [
 533                  'name' => 'Here',
 534                  'baseurl' => 'https://example.com/i/was',
 535                  'tooldomain' => 'example.com',
 536                  'state' => LTI_TOOL_STATE_CONFIGURED,
 537                  'course' => SITEID
 538              ],
 539              (object) [
 540                  'name' => 'Here',
 541                  'baseurl' => 'https://badexample.com/i/am/?where=here',
 542                  'tooldomain' => 'badexample.com',
 543                  'state' => LTI_TOOL_STATE_CONFIGURED,
 544                  'course' => SITEID
 545              ],
 546          ];
 547  
 548          $data = [
 549              [
 550                  'url' => $tools[0]->baseurl,
 551                  'expected' => $tools[0],
 552              ],
 553              [
 554                  'url' => $tools[1]->baseurl,
 555                  'expected' => $tools[1],
 556              ],
 557              [
 558                  'url' => $tools[2]->baseurl,
 559                  'expected' => $tools[2],
 560              ],
 561              [
 562                  'url' => $tools[3]->baseurl,
 563                  'expected' => $tools[3],
 564              ],
 565              [
 566                  'url' => $tools[4]->baseurl,
 567                  'expected' => $tools[4],
 568              ],
 569              [
 570                  'url' => $tools[5]->baseurl,
 571                  'expected' => $tools[5],
 572              ],
 573              [
 574                  'url' => 'https://nomatch.com/i/am/',
 575                  'expected' => null
 576              ],
 577              [
 578                  'url' => 'https://example.com',
 579                  'expected' => null
 580              ],
 581              [
 582                  'url' => 'https://example.com/i/am/?where=unknown',
 583                  'expected' => $tools[3]
 584              ]
 585          ];
 586  
 587          // Construct the final array as required by the provider API. Each row
 588          // of the array contains the URL to test, the expected tool, and
 589          // the complete list of tools.
 590          return array_map(function($data) use ($tools) {
 591              return [$data['url'], $data['expected'], $tools];
 592          }, $data);
 593      }
 594  
 595      /**
 596       * Test lti_get_best_tool_by_url.
 597       *
 598       * @dataProvider lti_get_best_tool_by_url_provider
 599       * @param string $url The URL to test.
 600       * @param object $expected The expected tool matching the URL.
 601       * @param array $tools The pool of tools to match the URL with.
 602       */
 603      public function test_lti_get_best_tool_by_url($url, $expected, $tools) {
 604          $actual = lti_get_best_tool_by_url($url, $tools, null);
 605          $this->assertSame($expected, $actual);
 606      }
 607  
 608      /**
 609       * Test lti_get_jwt_message_type_mapping().
 610       */
 611      public function test_lti_get_jwt_message_type_mapping() {
 612          $mapping = [
 613              'basic-lti-launch-request' => 'LtiResourceLinkRequest',
 614              'ContentItemSelectionRequest' => 'LtiDeepLinkingRequest',
 615              'LtiDeepLinkingResponse' => 'ContentItemSelection',
 616          ];
 617  
 618          $this->assertEquals($mapping, lti_get_jwt_message_type_mapping());
 619      }
 620  
 621      /**
 622       * Test lti_get_jwt_claim_mapping()
 623       */
 624      public function test_lti_get_jwt_claim_mapping() {
 625          $mapping = [
 626              'accept_copy_advice' => [
 627                  'suffix' => 'dl',
 628                  'group' => 'deep_linking_settings',
 629                  'claim' => 'accept_copy_advice',
 630                  'isarray' => false,
 631                  'type' => 'boolean'
 632              ],
 633              'accept_media_types' => [
 634                  'suffix' => 'dl',
 635                  'group' => 'deep_linking_settings',
 636                  'claim' => 'accept_media_types',
 637                  'isarray' => true
 638              ],
 639              'accept_multiple' => [
 640                  'suffix' => 'dl',
 641                  'group' => 'deep_linking_settings',
 642                  'claim' => 'accept_multiple',
 643                  'isarray' => false,
 644                  'type' => 'boolean'
 645              ],
 646              'accept_presentation_document_targets' => [
 647                  'suffix' => 'dl',
 648                  'group' => 'deep_linking_settings',
 649                  'claim' => 'accept_presentation_document_targets',
 650                  'isarray' => true
 651              ],
 652              'accept_types' => [
 653                  'suffix' => 'dl',
 654                  'group' => 'deep_linking_settings',
 655                  'claim' => 'accept_types',
 656                  'isarray' => true
 657              ],
 658              'accept_unsigned' => [
 659                  'suffix' => 'dl',
 660                  'group' => 'deep_linking_settings',
 661                  'claim' => 'accept_unsigned',
 662                  'isarray' => false,
 663                  'type' => 'boolean'
 664              ],
 665              'auto_create' => [
 666                  'suffix' => 'dl',
 667                  'group' => 'deep_linking_settings',
 668                  'claim' => 'auto_create',
 669                  'isarray' => false,
 670                  'type' => 'boolean'
 671              ],
 672              'can_confirm' => [
 673                  'suffix' => 'dl',
 674                  'group' => 'deep_linking_settings',
 675                  'claim' => 'can_confirm',
 676                  'isarray' => false,
 677                  'type' => 'boolean'
 678              ],
 679              'content_item_return_url' => [
 680                  'suffix' => 'dl',
 681                  'group' => 'deep_linking_settings',
 682                  'claim' => 'deep_link_return_url',
 683                  'isarray' => false
 684              ],
 685              'content_items' => [
 686                  'suffix' => 'dl',
 687                  'group' => '',
 688                  'claim' => 'content_items',
 689                  'isarray' => true
 690              ],
 691              'data' => [
 692                  'suffix' => 'dl',
 693                  'group' => 'deep_linking_settings',
 694                  'claim' => 'data',
 695                  'isarray' => false
 696              ],
 697              'text' => [
 698                  'suffix' => 'dl',
 699                  'group' => 'deep_linking_settings',
 700                  'claim' => 'text',
 701                  'isarray' => false
 702              ],
 703              'title' => [
 704                  'suffix' => 'dl',
 705                  'group' => 'deep_linking_settings',
 706                  'claim' => 'title',
 707                  'isarray' => false
 708              ],
 709              'lti_msg' => [
 710                  'suffix' => 'dl',
 711                  'group' => '',
 712                  'claim' => 'msg',
 713                  'isarray' => false
 714              ],
 715              'lti_log' => [
 716                  'suffix' => 'dl',
 717                  'group' => '',
 718                  'claim' => 'log',
 719                  'isarray' => false
 720              ],
 721              'lti_errormsg' => [
 722                  'suffix' => 'dl',
 723                  'group' => '',
 724                  'claim' => 'errormsg',
 725                  'isarray' => false
 726              ],
 727              'lti_errorlog' => [
 728                  'suffix' => 'dl',
 729                  'group' => '',
 730                  'claim' => 'errorlog',
 731                  'isarray' => false
 732              ],
 733              'context_id' => [
 734                  'suffix' => '',
 735                  'group' => 'context',
 736                  'claim' => 'id',
 737                  'isarray' => false
 738              ],
 739              'context_label' => [
 740                  'suffix' => '',
 741                  'group' => 'context',
 742                  'claim' => 'label',
 743                  'isarray' => false
 744              ],
 745              'context_title' => [
 746                  'suffix' => '',
 747                  'group' => 'context',
 748                  'claim' => 'title',
 749                  'isarray' => false
 750              ],
 751              'context_type' => [
 752                  'suffix' => '',
 753                  'group' => 'context',
 754                  'claim' => 'type',
 755                  'isarray' => true
 756              ],
 757              'lis_course_offering_sourcedid' => [
 758                  'suffix' => '',
 759                  'group' => 'lis',
 760                  'claim' => 'course_offering_sourcedid',
 761                  'isarray' => false
 762              ],
 763              'lis_course_section_sourcedid' => [
 764                  'suffix' => '',
 765                  'group' => 'lis',
 766                  'claim' => 'course_section_sourcedid',
 767                  'isarray' => false
 768              ],
 769              'launch_presentation_css_url' => [
 770                  'suffix' => '',
 771                  'group' => 'launch_presentation',
 772                  'claim' => 'css_url',
 773                  'isarray' => false
 774              ],
 775              'launch_presentation_document_target' => [
 776                  'suffix' => '',
 777                  'group' => 'launch_presentation',
 778                  'claim' => 'document_target',
 779                  'isarray' => false
 780              ],
 781              'launch_presentation_height' => [
 782                  'suffix' => '',
 783                  'group' => 'launch_presentation',
 784                  'claim' => 'height',
 785                  'isarray' => false
 786              ],
 787              'launch_presentation_locale' => [
 788                  'suffix' => '',
 789                  'group' => 'launch_presentation',
 790                  'claim' => 'locale',
 791                  'isarray' => false
 792              ],
 793              'launch_presentation_return_url' => [
 794                  'suffix' => '',
 795                  'group' => 'launch_presentation',
 796                  'claim' => 'return_url',
 797                  'isarray' => false
 798              ],
 799              'launch_presentation_width' => [
 800                  'suffix' => '',
 801                  'group' => 'launch_presentation',
 802                  'claim' => 'width',
 803                  'isarray' => false
 804              ],
 805              'lis_person_contact_email_primary' => [
 806                  'suffix' => '',
 807                  'group' => null,
 808                  'claim' => 'email',
 809                  'isarray' => false
 810              ],
 811              'lis_person_name_family' => [
 812                  'suffix' => '',
 813                  'group' => null,
 814                  'claim' => 'family_name',
 815                  'isarray' => false
 816              ],
 817              'lis_person_name_full' => [
 818                  'suffix' => '',
 819                  'group' => null,
 820                  'claim' => 'name',
 821                  'isarray' => false
 822              ],
 823              'lis_person_name_given' => [
 824                  'suffix' => '',
 825                  'group' => null,
 826                  'claim' => 'given_name',
 827                  'isarray' => false
 828              ],
 829              'lis_person_sourcedid' => [
 830                  'suffix' => '',
 831                  'group' => 'lis',
 832                  'claim' => 'person_sourcedid',
 833                  'isarray' => false
 834              ],
 835              'user_id' => [
 836                  'suffix' => '',
 837                  'group' => null,
 838                  'claim' => 'sub',
 839                  'isarray' => false
 840              ],
 841              'user_image' => [
 842                  'suffix' => '',
 843                  'group' => null,
 844                  'claim' => 'picture',
 845                  'isarray' => false
 846              ],
 847              'roles' => [
 848                  'suffix' => '',
 849                  'group' => '',
 850                  'claim' => 'roles',
 851                  'isarray' => true
 852              ],
 853              'role_scope_mentor' => [
 854                  'suffix' => '',
 855                  'group' => '',
 856                  'claim' => 'role_scope_mentor',
 857                  'isarray' => false
 858              ],
 859              'deployment_id' => [
 860                  'suffix' => '',
 861                  'group' => '',
 862                  'claim' => 'deployment_id',
 863                  'isarray' => false
 864              ],
 865              'lti_message_type' => [
 866                  'suffix' => '',
 867                  'group' => '',
 868                  'claim' => 'message_type',
 869                  'isarray' => false
 870              ],
 871              'lti_version' => [
 872                  'suffix' => '',
 873                  'group' => '',
 874                  'claim' => 'version',
 875                  'isarray' => false
 876              ],
 877              'resource_link_description' => [
 878                  'suffix' => '',
 879                  'group' => 'resource_link',
 880                  'claim' => 'description',
 881                  'isarray' => false
 882              ],
 883              'resource_link_id' => [
 884                  'suffix' => '',
 885                  'group' => 'resource_link',
 886                  'claim' => 'id',
 887                  'isarray' => false
 888              ],
 889              'resource_link_title' => [
 890                  'suffix' => '',
 891                  'group' => 'resource_link',
 892                  'claim' => 'title',
 893                  'isarray' => false
 894              ],
 895              'tool_consumer_info_product_family_code' => [
 896                  'suffix' => '',
 897                  'group' => 'tool_platform',
 898                  'claim' => 'product_family_code',
 899                  'isarray' => false
 900              ],
 901              'tool_consumer_info_version' => [
 902                  'suffix' => '',
 903                  'group' => 'tool_platform',
 904                  'claim' => 'version',
 905                  'isarray' => false
 906              ],
 907              'tool_consumer_instance_contact_email' => [
 908                  'suffix' => '',
 909                  'group' => 'tool_platform',
 910                  'claim' => 'contact_email',
 911                  'isarray' => false
 912              ],
 913              'tool_consumer_instance_description' => [
 914                  'suffix' => '',
 915                  'group' => 'tool_platform',
 916                  'claim' => 'description',
 917                  'isarray' => false
 918              ],
 919              'tool_consumer_instance_guid' => [
 920                  'suffix' => '',
 921                  'group' => 'tool_platform',
 922                  'claim' => 'guid',
 923                  'isarray' => false
 924              ],
 925              'tool_consumer_instance_name' => [
 926                  'suffix' => '',
 927                  'group' => 'tool_platform',
 928                  'claim' => 'name',
 929                  'isarray' => false
 930              ],
 931              'tool_consumer_instance_url' => [
 932                  'suffix' => '',
 933                  'group' => 'tool_platform',
 934                  'claim' => 'url',
 935                  'isarray' => false
 936              ],
 937              'custom_context_memberships_url' => [
 938                  'suffix' => 'nrps',
 939                  'group' => 'namesroleservice',
 940                  'claim' => 'context_memberships_url',
 941                  'isarray' => false
 942              ],
 943              'custom_context_memberships_versions' => [
 944                  'suffix' => 'nrps',
 945                  'group' => 'namesroleservice',
 946                  'claim' => 'service_versions',
 947                  'isarray' => true
 948              ],
 949              'custom_gradebookservices_scope' => [
 950                  'suffix' => 'ags',
 951                  'group' => 'endpoint',
 952                  'claim' => 'scope',
 953                  'isarray' => true
 954              ],
 955              'custom_lineitems_url' => [
 956                  'suffix' => 'ags',
 957                  'group' => 'endpoint',
 958                  'claim' => 'lineitems',
 959                  'isarray' => false
 960              ],
 961              'custom_lineitem_url' => [
 962                  'suffix' => 'ags',
 963                  'group' => 'endpoint',
 964                  'claim' => 'lineitem',
 965                  'isarray' => false
 966              ],
 967              'custom_results_url' => [
 968                  'suffix' => 'ags',
 969                  'group' => 'endpoint',
 970                  'claim' => 'results',
 971                  'isarray' => false
 972              ],
 973              'custom_result_url' => [
 974                  'suffix' => 'ags',
 975                  'group' => 'endpoint',
 976                  'claim' => 'result',
 977                  'isarray' => false
 978              ],
 979              'custom_scores_url' => [
 980                  'suffix' => 'ags',
 981                  'group' => 'endpoint',
 982                  'claim' => 'scores',
 983                  'isarray' => false
 984              ],
 985              'custom_score_url' => [
 986                  'suffix' => 'ags',
 987                  'group' => 'endpoint',
 988                  'claim' => 'score',
 989                  'isarray' => false
 990              ],
 991              'lis_outcome_service_url' => [
 992                  'suffix' => 'bo',
 993                  'group' => 'basicoutcome',
 994                  'claim' => 'lis_outcome_service_url',
 995                  'isarray' => false
 996              ],
 997              'lis_result_sourcedid' => [
 998                  'suffix' => 'bo',
 999                  'group' => 'basicoutcome',
1000                  'claim' => 'lis_result_sourcedid',
1001                  'isarray' => false
1002              ],
1003          ];
1004  
1005          $this->assertEquals($mapping, lti_get_jwt_claim_mapping());
1006      }
1007  
1008      /**
1009       * Test lti_build_standard_message().
1010       */
1011      public function test_lti_build_standard_message_institution_name_set() {
1012          global $CFG;
1013  
1014          $this->resetAfterTest();
1015  
1016          $CFG->mod_lti_institution_name = 'some institution name lols';
1017  
1018          $course   = $this->getDataGenerator()->create_course();
1019          $instance = $this->getDataGenerator()->create_module('lti',
1020              [
1021                  'course' => $course->id,
1022              ]
1023          );
1024  
1025          $message = lti_build_standard_message($instance, '2', LTI_VERSION_1);
1026  
1027          $this->assertEquals('moodle-2', $message['ext_lms']);
1028          $this->assertEquals('moodle', $message['tool_consumer_info_product_family_code']);
1029          $this->assertEquals(LTI_VERSION_1, $message['lti_version']);
1030          $this->assertEquals('basic-lti-launch-request', $message['lti_message_type']);
1031          $this->assertEquals('2', $message['tool_consumer_instance_guid']);
1032          $this->assertEquals('some institution name lols', $message['tool_consumer_instance_name']);
1033          $this->assertEquals('PHPUnit test site', $message['tool_consumer_instance_description']);
1034      }
1035  
1036      /**
1037       * Test lti_build_standard_message().
1038       */
1039      public function test_lti_build_standard_message_institution_name_not_set() {
1040          $this->resetAfterTest();
1041  
1042          $course   = $this->getDataGenerator()->create_course();
1043          $instance = $this->getDataGenerator()->create_module('lti',
1044              [
1045                  'course' => $course->id,
1046              ]
1047          );
1048  
1049          $message = lti_build_standard_message($instance, '2', LTI_VERSION_2);
1050  
1051          $this->assertEquals('moodle-2', $message['ext_lms']);
1052          $this->assertEquals('moodle', $message['tool_consumer_info_product_family_code']);
1053          $this->assertEquals(LTI_VERSION_2, $message['lti_version']);
1054          $this->assertEquals('basic-lti-launch-request', $message['lti_message_type']);
1055          $this->assertEquals('2', $message['tool_consumer_instance_guid']);
1056          $this->assertEquals('phpunit', $message['tool_consumer_instance_name']);
1057          $this->assertEquals('PHPUnit test site', $message['tool_consumer_instance_description']);
1058      }
1059  
1060      /**
1061       * Test lti_verify_jwt_signature().
1062       */
1063      public function test_lti_verify_jwt_signature() {
1064          $this->resetAfterTest();
1065  
1066          $this->setAdminUser();
1067  
1068          // Create a tool type, associated with that proxy.
1069          $type = new stdClass();
1070          $type->state = LTI_TOOL_STATE_CONFIGURED;
1071          $type->name = "Test tool";
1072          $type->description = "Example description";
1073          $type->baseurl = $this->getExternalTestFileUrl('/test.html');
1074  
1075          $config = new stdClass();
1076          $config->lti_publickey = '-----BEGIN PUBLIC KEY-----
1077  MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnzyis1ZjfNB0bBgKFMSv
1078  vkTtwlvBsaJq7S5wA+kzeVOVpVWwkWdVha4s38XM/pa/yr47av7+z3VTmvDRyAHc
1079  aT92whREFpLv9cj5lTeJSibyr/Mrm/YtjCZVWgaOYIhwrXwKLqPr/11inWsAkfIy
1080  tvHWTxZYEcXLgAXFuUuaS3uF9gEiNQwzGTU1v0FqkqTBr4B8nW3HCN47XUu0t8Y0
1081  e+lf4s4OxQawWD79J9/5d3Ry0vbV3Am1FtGJiJvOwRsIfVChDpYStTcHTCMqtvWb
1082  V6L11BWkpzGXSW4Hv43qa+GSYOD2QU68Mb59oSk2OB+BtOLpJofmbGEGgvmwyCI9
1083  MwIDAQAB
1084  -----END PUBLIC KEY-----';
1085  
1086          $config->lti_keytype = LTI_RSA_KEY;
1087  
1088          $typeid = lti_add_type($type, $config);
1089  
1090          lti_verify_jwt_signature($typeid, '', 'eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4g' .
1091              'RG9lIiwiYWRtaW4iOnRydWUsImlhdCI6MTUxNjIzOTAyMn0.POstGetfAytaZS82wHcjoTyoqhMyxXiWdR7Nn7A29DNSl0EiXLdwJ6xC6AfgZWF1bOs' .
1092              'S_TuYI3OG85AmiExREkrS6tDfTQ2B3WXlrr-wp5AokiRbz3_oB4OxG-W9KcEEbDRcZc0nH3L7LzYptiy1PtAylQGxHTWZXtGz4ht0bAecBgmpdgXMgu' .
1093              'EIcoqPJ1n3pIWk_dUZegpqx0Lka21H6XxUTxiy8OcaarA8zdnPUnV6AmNP3ecFawIFYdvJB_cm-GvpCSbr8G8y_Mllj8f4x9nBH8pQux89_6gUY618iY' .
1094              'v7tuPWBFfEbLxtF2pZS6YC1aSfLQxeNe8djT9YjpvRZA');
1095      }
1096  
1097      /**
1098       * Test lti_verify_jwt_signature_jwk().
1099       */
1100      public function test_lti_verify_jwt_signature_jwk() {
1101          $this->resetAfterTest();
1102  
1103          $this->setAdminUser();
1104  
1105          // Create a tool type, associated with that proxy.
1106          $type = new stdClass();
1107          $type->state = LTI_TOOL_STATE_CONFIGURED;
1108          $type->name = "Test tool";
1109          $type->description = "Example description";
1110          $type->baseurl = $this->getExternalTestFileUrl('/test.html');
1111  
1112          $config = new stdClass();
1113          $config->lti_publickeyset = dirname(__FILE__) . '/fixtures/test_keyset';
1114  
1115          $config->lti_keytype = LTI_JWK_KEYSET;
1116  
1117          $typeid = lti_add_type($type, $config);
1118  
1119          $jwt = 'eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCIsImtpZCI6IjU3YzExNzdkMmQ1M2EwMjFjNzM';
1120          $jwt .= '3NTY0OTFjMTM3YjE3In0.eyJpc3MiOiJnclJvbkd3RTd1WjRwZ28iLCJzdWIiOiJnclJvb';
1121          $jwt .= 'kd3RTd1WjRwZ28iLCJhdWQiOiJodHRwOi8vbG9jYWxob3N0L21vb2RsZS9tb2QvbHRpL3R';
1122          $jwt .= 'va2VuLnBocCIsImp0aSI6IjFlMUJPVEczVFJjbFdUem00dERsMGc9PSIsImlhdCI6MTU4M';
1123          $jwt .= 'Dg1NTUwNX0.Lowhc9ovNAXRb2rkAnv1oozDXlRD54Mz2JS1i8Zx4yGWQzmXzam-La19_g0';
1124          $jwt .= 'CTnwlKM6gxaInnRKFRAcwhJVcWec389liLAjMbna6d6iTWYTZr7q_4BIe3CT_oTMWASGta';
1125          $jwt .= 'Paaq53ch1rO4YdueEtmtd1K47ibo4Lhu1jmP_icc3lxjfnqiv4vIYdy7W2JQEzpk1ImuQr';
1126          $jwt .= 'AlO1xR3fZ6bgcJhVIaw5xoaZD3ZgEjuZOQXMkywv1bL-mL17RX336CzHd8rYZg82QXrBzb';
1127          $jwt .= 'NWzAlaZxv9VSug8t6mORvM6TkYYWjqEBKemgkD5rNh1BHrPcjWP7vy2Jz7YMjLsmuvDuLK';
1128          $jwt .= '_PHYIKL--s4gcXWoYmOu1vj-SgoPczTJPoiBD35hAKqVHy5ggHaYHBy95_bbcFd8H1smHw';
1129          $jwt .= 'pejrAFj1QAwGyTISLzUm08oq7Ak0tSxRKKXw4lpZAka1MmYxO3tJ_3-MXw6Bwz12bNgitJ';
1130          $jwt .= 'lQd6n3kkGLCJAmANeRkPsH6eZVwF0n2cjh2O1JAwyNcMD2vs4I8ftM1EqqoE2M3r6kt3AC';
1131          $jwt .= 'EscmqzizI3j80USBCLUUb1UTsfJb2g7oyApJAp-13Q3InR3QyvWO8unG5VraFE7IL5I28h';
1132          $jwt .= 'MkQAHuCI90DFmXB4leflAu7wNlIK_U8xkGl8X8Mnv6MWgg94Ki8jgIq_kA85JAqI';
1133  
1134          lti_verify_jwt_signature($typeid, '', $jwt);
1135      }
1136  
1137      /**
1138       * Test lti_verify_jwt_signature().
1139       */
1140      public function test_lti_verify_jwt_signature_with_lti2() {
1141          $this->resetAfterTest();
1142  
1143          $this->setAdminUser();
1144  
1145          // Create a tool proxy.
1146          $proxy = mod_lti_external::create_tool_proxy('Test proxy', $this->getExternalTestFileUrl('/test.html'), array(), array());
1147  
1148          // Create a tool type, associated with that proxy.
1149          $type = new stdClass();
1150          $type->state = LTI_TOOL_STATE_CONFIGURED;
1151          $type->name = "Test tool";
1152          $type->description = "Example description";
1153          $type->toolproxyid = $proxy->id;
1154          $type->baseurl = $this->getExternalTestFileUrl('/test.html');
1155  
1156          $data = new stdClass();
1157          $data->lti_contentitem = true;
1158  
1159          $typeid = lti_add_type($type, $data);
1160  
1161          $this->expectExceptionMessage('JWT security not supported with LTI 2');
1162          lti_verify_jwt_signature($typeid, '', '');
1163      }
1164  
1165      /**
1166       * Test lti_verify_jwt_signature().
1167       */
1168      public function test_lti_verify_jwt_signature_no_consumer_key() {
1169          $this->resetAfterTest();
1170  
1171          $this->setAdminUser();
1172  
1173          // Create a tool type, associated with that proxy.
1174          $type = new stdClass();
1175          $type->state = LTI_TOOL_STATE_CONFIGURED;
1176          $type->name = "Test tool";
1177          $type->description = "Example description";
1178          $type->clientid = 'consumerkey';
1179          $type->baseurl = $this->getExternalTestFileUrl('/test.html');
1180  
1181          $config = new stdClass();
1182          $typeid = lti_add_type($type, $config);
1183  
1184          $this->expectExceptionMessage(get_string('errorincorrectconsumerkey', 'mod_lti'));
1185          lti_verify_jwt_signature($typeid, '', '');
1186      }
1187  
1188      /**
1189       * Test lti_verify_jwt_signature().
1190       */
1191      public function test_lti_verify_jwt_signature_no_public_key() {
1192          $this->resetAfterTest();
1193  
1194          $this->setAdminUser();
1195  
1196          // Create a tool type, associated with that proxy.
1197          $type = new stdClass();
1198          $type->state = LTI_TOOL_STATE_CONFIGURED;
1199          $type->name = "Test tool";
1200          $type->description = "Example description";
1201          $type->clientid = 'consumerkey';
1202          $type->baseurl = $this->getExternalTestFileUrl('/test.html');
1203  
1204          $config = new stdClass();
1205          $config->lti_keytype = LTI_RSA_KEY;
1206          $typeid = lti_add_type($type, $config);
1207  
1208          $this->expectExceptionMessage('No public key configured');
1209          lti_verify_jwt_signature($typeid, 'consumerkey', '');
1210      }
1211  
1212      /**
1213       * Test lti_convert_content_items().
1214       */
1215      public function test_lti_convert_content_items() {
1216          $contentitems = [];
1217          $contentitems[] = [
1218              'type' => 'ltiResourceLink',
1219              'url' => 'http://example.com/messages/launch',
1220              'title' => 'Test title',
1221              'text' => 'Test text',
1222              'frame' => []
1223          ];
1224  
1225          $contentitems = json_encode($contentitems);
1226  
1227          $json = lti_convert_content_items($contentitems);
1228  
1229          $jsondecode = json_decode($json);
1230  
1231          $strcontext = '@context';
1232          $strgraph = '@graph';
1233          $strtype = '@type';
1234  
1235          $objgraph = new stdClass();
1236          $objgraph->url = 'http://example.com/messages/launch';
1237          $objgraph->title = 'Test title';
1238          $objgraph->text = 'Test text';
1239          $objgraph->frame = [];
1240          $objgraph->{$strtype} = 'LtiLinkItem';
1241          $objgraph->mediaType = 'application\/vnd.ims.lti.v1.ltilink';
1242  
1243          $expected = new stdClass();
1244          $expected->{$strcontext} = 'http://purl.imsglobal.org/ctx/lti/v1/ContentItem';
1245          $expected->{$strgraph} = [];
1246          $expected->{$strgraph}[] = $objgraph;
1247  
1248          $this->assertEquals($expected, $jsondecode);
1249      }
1250  
1251      /**
1252       * Test lti_sign_jwt().
1253       */
1254      public function test_lti_sign_jwt() {
1255          $this->resetAfterTest();
1256  
1257          $this->setAdminUser();
1258  
1259          // Create a tool type, associated with that proxy.
1260          $type = new stdClass();
1261          $type->state = LTI_TOOL_STATE_CONFIGURED;
1262          $type->name = "Test tool";
1263          $type->description = "Example description";
1264          $type->clientid = 'consumerkey';
1265          $type->baseurl = $this->getExternalTestFileUrl('/test.html');
1266  
1267          $config = new stdClass();
1268          $typeid = lti_add_type($type, $config);
1269  
1270          $params = [];
1271          $params['roles'] = 'urn:lti:role:ims/lis/testrole,' .
1272              'urn:lti:instrole:ims/lis/testinstrole,' .
1273              'urn:lti:sysrole:ims/lis/testsysrole,' .
1274              'hi';
1275          $params['accept_copy_advice'] = [
1276              'suffix' => 'dl',
1277              'group' => 'deep_linking_settings',
1278              'claim' => 'accept_copy_advice',
1279              'isarray' => false
1280          ];
1281          $params['lis_result_sourcedid'] = [
1282              'suffix' => 'bos',
1283              'group' => 'basicoutcomesservice',
1284              'claim' => 'lis_result_sourcedid',
1285              'isarray' => false
1286          ];
1287          $endpoint = 'https://www.example.com/moodle';
1288          $oauthconsumerkey = 'consumerkey';
1289          $nonce = '';
1290  
1291          $jwt = lti_sign_jwt($params, $endpoint, $oauthconsumerkey, $typeid, $nonce);
1292  
1293          $this->assertArrayHasKey('id_token', $jwt);
1294          $this->assertNotEmpty($jwt['id_token']);
1295      }
1296  
1297      /**
1298       * Test lti_convert_from_jwt()
1299       */
1300      public function test_lti_convert_from_jwt() {
1301          $this->resetAfterTest();
1302  
1303          $this->setAdminUser();
1304  
1305          // Create a tool type, associated with that proxy.
1306          $type = new stdClass();
1307          $type->state = LTI_TOOL_STATE_CONFIGURED;
1308          $type->name = "Test tool";
1309          $type->description = "Example description";
1310          $type->clientid = 'sso.example.com';
1311          $type->baseurl = $this->getExternalTestFileUrl('/test.html');
1312  
1313          $config = new stdClass();
1314          $config->lti_publickey = '-----BEGIN PUBLIC KEY-----
1315  MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnzyis1ZjfNB0bBgKFMSv
1316  vkTtwlvBsaJq7S5wA+kzeVOVpVWwkWdVha4s38XM/pa/yr47av7+z3VTmvDRyAHc
1317  aT92whREFpLv9cj5lTeJSibyr/Mrm/YtjCZVWgaOYIhwrXwKLqPr/11inWsAkfIy
1318  tvHWTxZYEcXLgAXFuUuaS3uF9gEiNQwzGTU1v0FqkqTBr4B8nW3HCN47XUu0t8Y0
1319  e+lf4s4OxQawWD79J9/5d3Ry0vbV3Am1FtGJiJvOwRsIfVChDpYStTcHTCMqtvWb
1320  V6L11BWkpzGXSW4Hv43qa+GSYOD2QU68Mb59oSk2OB+BtOLpJofmbGEGgvmwyCI9
1321  MwIDAQAB
1322  -----END PUBLIC KEY-----';
1323          $config->lti_keytype = LTI_RSA_KEY;
1324  
1325          $typeid = lti_add_type($type, $config);
1326  
1327          $params = lti_convert_from_jwt($typeid, 'eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwib' .
1328              'mFtZSI6IkpvaG4gRG9lIiwiYWRtaW4iOnRydWUsImlhdCI6MTUxNjIzOTAyMiwiaXNzIjoic3NvLmV4YW1wbGUuY29tIn0.XURVvEb5ueAvFsn-S9EB' .
1329              'BSfKbsgUzfRQqmJ6evlrYdx7sXWoZXw1nYjaLTg-mawvBr7MVvrdG9qh6oN8OfkQ7bfMwiz4tjBMJ4B4q_sig5BDYIKwMNjZL5GGCBs89FQrgqZBhxw' .
1330              '3exTjPBEn69__w40o0AhCsBohPMh0ZsAyHug5dhm8vIuOP667repUJzM8uKCD6L4bEL6vQE8EwU6WQOmfJ2SDmRs-1pFkiaFd6hmPn6AVX7ETtzQmlT' .
1331              'X-nXe9weQjU1lH4AQG2Yfnn-7lS94bt6E76Zt-XndP3IY7W48EpnRfUK9Ff1fZlomT4MPahdNP1eP8gT2iMz7vYpCfmA');
1332  
1333          $this->assertEquals('sso.example.com', $params['oauth_consumer_key']);
1334          $this->assertEquals('John Doe', $params['lis_person_name_full']);
1335      }
1336  
1337      /**
1338       * Test lti_get_permitted_service_scopes().
1339       */
1340      public function test_lti_get_permitted_service_scopes() {
1341          $this->resetAfterTest();
1342  
1343          $this->setAdminUser();
1344  
1345          // Create a tool type, associated with that proxy.
1346          $type = new stdClass();
1347          $type->state = LTI_TOOL_STATE_CONFIGURED;
1348          $type->name = "Test tool";
1349          $type->description = "Example description";
1350          $type->baseurl = $this->getExternalTestFileUrl('/test.html');
1351  
1352          $typeconfig = new stdClass();
1353          $typeconfig->lti_acceptgrades = true;
1354  
1355          $typeid = lti_add_type($type, $typeconfig);
1356  
1357          $tool = lti_get_type($typeid);
1358  
1359          $config = lti_get_type_config($typeid);
1360          $permittedscopes = lti_get_permitted_service_scopes($tool, $config);
1361  
1362          $expected = [
1363              'https://purl.imsglobal.org/spec/lti-bo/scope/basicoutcome'
1364          ];
1365          $this->assertEquals($expected, $permittedscopes);
1366      }
1367  
1368      /**
1369       * Test get_tool_type_config().
1370       */
1371      public function test_get_tool_type_config() {
1372          $this->resetAfterTest();
1373  
1374          $this->setAdminUser();
1375  
1376          // Create a tool type, associated with that proxy.
1377          $type = new stdClass();
1378          $type->state = LTI_TOOL_STATE_CONFIGURED;
1379          $type->name = "Test tool";
1380          $type->description = "Example description";
1381          $type->clientid = "Test client ID";
1382          $type->baseurl = $this->getExternalTestFileUrl('/test.html');
1383  
1384          $config = new stdClass();
1385  
1386          $typeid = lti_add_type($type, $config);
1387  
1388          $type = lti_get_type($typeid);
1389  
1390          $typeconfig = get_tool_type_config($type);
1391  
1392          $this->assertEquals('https://www.example.com/moodle', $typeconfig['platformid']);
1393          $this->assertEquals($type->clientid, $typeconfig['clientid']);
1394          $this->assertEquals($typeid, $typeconfig['deploymentid']);
1395          $this->assertEquals('https://www.example.com/moodle/mod/lti/certs.php', $typeconfig['publickeyseturl']);
1396          $this->assertEquals('https://www.example.com/moodle/mod/lti/token.php', $typeconfig['accesstokenurl']);
1397          $this->assertEquals('https://www.example.com/moodle/mod/lti/auth.php', $typeconfig['authrequesturl']);
1398      }
1399  
1400      /**
1401       * Test lti_new_access_token().
1402       */
1403      public function test_lti_new_access_token() {
1404          global $DB;
1405  
1406          $this->resetAfterTest();
1407  
1408          $this->setAdminUser();
1409  
1410          // Create a tool type, associated with that proxy.
1411          $type = new stdClass();
1412          $type->state = LTI_TOOL_STATE_CONFIGURED;
1413          $type->name = "Test tool";
1414          $type->description = "Example description";
1415          $type->clientid = "Test client ID";
1416          $type->baseurl = $this->getExternalTestFileUrl('/test.html');
1417  
1418          $config = new stdClass();
1419  
1420          $typeid = lti_add_type($type, $config);
1421  
1422          $scopes = ['lti_some_scope', 'lti_another_scope'];
1423  
1424          lti_new_access_token($typeid, $scopes);
1425  
1426          $token = $DB->get_records('lti_access_tokens');
1427          $this->assertEquals(1, count($token));
1428  
1429          $token = reset($token);
1430  
1431          $this->assertEquals($typeid, $token->typeid);
1432          $this->assertEquals(json_encode(array_values($scopes)), $token->scope);
1433          $this->assertEquals($token->timecreated + LTI_ACCESS_TOKEN_LIFE, $token->validuntil);
1434          $this->assertNull($token->lastaccess);
1435      }
1436  
1437      /**
1438       * Test lti_build_login_request().
1439       */
1440      public function test_lti_build_login_request() {
1441          global $USER, $CFG;
1442  
1443          $this->resetAfterTest();
1444  
1445          $USER->id = 123456789;
1446  
1447          $course   = $this->getDataGenerator()->create_course();
1448          $instance = $this->getDataGenerator()->create_module('lti',
1449              [
1450                  'course' => $course->id,
1451              ]
1452          );
1453  
1454          $config = new stdClass();
1455          $config->lti_clientid = 'some-client-id';
1456          $config->typeid = 'some-type-id';
1457          $config->lti_toolurl = 'some-lti-tool-url';
1458  
1459          $request = lti_build_login_request($course->id, $instance->id, $instance, $config, 'basic-lti-launch-request');
1460  
1461          $this->assertEquals($CFG->wwwroot, $request['iss']);
1462          $this->assertEquals('http://some-lti-tool-url', $request['target_link_uri']);
1463          $this->assertEquals(123456789, $request['login_hint']);
1464          $this->assertEquals($instance->id, $request['lti_message_hint']);
1465          $this->assertEquals('some-client-id', $request['client_id']);
1466          $this->assertEquals('some-type-id', $request['lti_deployment_id']);
1467      }
1468  
1469      /**
1470       * Test default orgid is host if not specified in config (tool installed in earlier version of Moodle).
1471       */
1472      public function test_lti_get_launch_data_default_organizationid_unset_usehost() {
1473          global $DB;
1474          $this->resetAfterTest();
1475          $this->setAdminUser();
1476          $config = new stdClass();
1477          $config->lti_organizationid = '';
1478          $course = $this->getDataGenerator()->create_course();
1479          $type = $this->create_type($config);
1480          $link = $this->create_instance($type, $course);
1481          $launchdata = lti_get_launch_data($link);
1482          $this->assertEquals($launchdata[1]['tool_consumer_instance_guid'], 'www.example.com');
1483      }
1484  
1485      /**
1486       * Test default org id is set to host when config is usehost.
1487       */
1488      public function test_lti_get_launch_data_default_organizationid_set_usehost() {
1489          global $DB;
1490          $this->resetAfterTest();
1491          $this->setAdminUser();
1492          $config = new stdClass();
1493          $config->lti_organizationid = '';
1494          $config->lti_organizationid_default = LTI_DEFAULT_ORGID_SITEHOST;
1495          $course = $this->getDataGenerator()->create_course();
1496          $type = $this->create_type($config);
1497          $link = $this->create_instance($type, $course);
1498          $launchdata = lti_get_launch_data($link);
1499          $this->assertEquals($launchdata[1]['tool_consumer_instance_guid'], 'www.example.com');
1500      }
1501  
1502      /**
1503       * Test default org id is set to site id when config is usesiteid.
1504       */
1505      public function test_lti_get_launch_data_default_organizationid_set_usesiteid() {
1506          global $DB;
1507          $this->resetAfterTest();
1508          $this->setAdminUser();
1509          $config = new stdClass();
1510          $config->lti_organizationid = '';
1511          $config->lti_organizationid_default = LTI_DEFAULT_ORGID_SITEID;
1512          $course = $this->getDataGenerator()->create_course();
1513          $type = $this->create_type($config);
1514          $link = $this->create_instance($type, $course);
1515          $launchdata = lti_get_launch_data($link);
1516          $this->assertEquals($launchdata[1]['tool_consumer_instance_guid'], md5(get_site_identifier()));
1517      }
1518  
1519      /**
1520       * Test orgid can be overridden in which case default is ignored.
1521       */
1522      public function test_lti_get_launch_data_default_organizationid_orgid_override() {
1523          global $DB;
1524          $this->resetAfterTest();
1525          $this->setAdminUser();
1526          $config = new stdClass();
1527          $config->lti_organizationid = 'overridden!';
1528          $config->lti_organizationid_default = LTI_DEFAULT_ORGID_SITEID;
1529          $course = $this->getDataGenerator()->create_course();
1530          $type = $this->create_type($config);
1531          $link = $this->create_instance($type, $course);
1532          $launchdata = lti_get_launch_data($link);
1533          $this->assertEquals($launchdata[1]['tool_consumer_instance_guid'], 'overridden!');
1534      }
1535  
1536      /**
1537       * Create an LTI Tool.
1538       *
1539       * @param object $config tool config.
1540       *
1541       * @return object tool.
1542       */
1543      private function create_type(object $config) {
1544          $type = new stdClass();
1545          $type->state = LTI_TOOL_STATE_CONFIGURED;
1546          $type->name = "Test tool";
1547          $type->description = "Example description";
1548          $type->clientid = "Test client ID";
1549          $type->baseurl = $this->getExternalTestFileUrl('/test.html');
1550  
1551          $configbase = new stdClass();
1552          $configbase->lti_acceptgrades = LTI_SETTING_NEVER;
1553          $configbase->lti_sendname = LTI_SETTING_NEVER;
1554          $configbase->lti_sendemailaddr = LTI_SETTING_NEVER;
1555          $mergedconfig = (object) array_merge( (array) $configbase, (array) $config);
1556          $typeid = lti_add_type($type, $mergedconfig);
1557          return lti_get_type($typeid);
1558      }
1559  
1560      /**
1561       * Create an LTI Instance for the tool in a given course.
1562       *
1563       * @param object $type tool for which an instance should be added.
1564       * @param object $course course where the instance should be added.
1565       *
1566       * @return object instance.
1567       */
1568      private function create_instance(object $type, object $course) {
1569          $generator = $this->getDataGenerator()->get_plugin_generator('mod_lti');
1570          return $generator->create_instance(array('course' => $course->id,
1571                    'toolurl' => $type->baseurl,
1572                    'typeid' => $type->id
1573                    ), array());
1574      }
1575  }