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- Bug fixes for general core bugs in 4.3.x will end 7 October 2024 (12 months).
- Bug fixes for security issues in 4.3.x will end 21 April 2025 (18 months).
- PHP version: minimum PHP 8.0.0 Note: minimum PHP version has increased since Moodle 4.1. PHP 8.2.x is supported too.
/mod/lti/classes/ -> external.php (source)
Differences Between: [Versions 310 and 403] [Versions 311 and 403] [Versions 39 and 403] [Versions 400 and 403] [Versions 401 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 /** 18 * External tool module external API 19 * 20 * @package mod_lti 21 * @category external 22 * @copyright 2015 Juan Leyva <juan@moodle.com> 23 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later 24 * @since Moodle 3.0 25 */ 26 27 use core_course\external\helper_for_get_mods_by_courses; 28 use core_external\external_api; 29 use core_external\external_function_parameters; 30 use core_external\external_multiple_structure; 31 use core_external\external_single_structure; 32 use core_external\external_value; 33 use core_external\external_warnings; 34 use core_external\util; 35 36 defined('MOODLE_INTERNAL') || die; 37 38 require_once($CFG->dirroot . '/mod/lti/lib.php'); 39 require_once($CFG->dirroot . '/mod/lti/locallib.php'); 40 41 /** 42 * External tool module external functions 43 * 44 * @package mod_lti 45 * @category external 46 * @copyright 2015 Juan Leyva <juan@moodle.com> 47 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later 48 * @since Moodle 3.0 49 */ 50 class mod_lti_external extends external_api { 51 52 /** 53 * Returns structure be used for returning a tool type from a web service. 54 * 55 * @return external_function_parameters 56 * @since Moodle 3.1 57 */ 58 private static function tool_type_return_structure() { 59 return new external_single_structure( 60 array( 61 'id' => new external_value(PARAM_INT, 'Tool type id'), 62 'name' => new external_value(PARAM_NOTAGS, 'Tool type name'), 63 'description' => new external_value(PARAM_NOTAGS, 'Tool type description'), 64 'platformid' => new external_value(PARAM_TEXT, 'Platform ID'), 65 'clientid' => new external_value(PARAM_TEXT, 'Client ID'), 66 'deploymentid' => new external_value(PARAM_INT, 'Deployment ID'), 67 'urls' => new external_single_structure( 68 array( 69 'icon' => new external_value(PARAM_URL, 'Tool type icon URL'), 70 'edit' => new external_value(PARAM_URL, 'Tool type edit URL'), 71 'course' => new external_value(PARAM_URL, 'Tool type edit URL', VALUE_OPTIONAL), 72 'publickeyset' => new external_value(PARAM_URL, 'Public Keyset URL'), 73 'accesstoken' => new external_value(PARAM_URL, 'Access Token URL'), 74 'authrequest' => new external_value(PARAM_URL, 'Authorisation Request URL'), 75 ) 76 ), 77 'state' => new external_single_structure( 78 array( 79 'text' => new external_value(PARAM_TEXT, 'Tool type state name string'), 80 'pending' => new external_value(PARAM_BOOL, 'Is the state pending'), 81 'configured' => new external_value(PARAM_BOOL, 'Is the state configured'), 82 'rejected' => new external_value(PARAM_BOOL, 'Is the state rejected'), 83 'unknown' => new external_value(PARAM_BOOL, 'Is the state unknown'), 84 ) 85 ), 86 'hascapabilitygroups' => new external_value(PARAM_BOOL, 'Indicate if capabilitygroups is populated'), 87 'capabilitygroups' => new external_multiple_structure( 88 new external_value(PARAM_TEXT, 'Tool type capability groups enabled'), 89 'Array of capability groups', VALUE_DEFAULT, array() 90 ), 91 'courseid' => new external_value(PARAM_INT, 'Tool type course', VALUE_DEFAULT, 0), 92 'instanceids' => new external_multiple_structure( 93 new external_value(PARAM_INT, 'LTI instance ID'), 94 'IDs for the LTI instances using this type', VALUE_DEFAULT, array() 95 ), 96 'instancecount' => new external_value(PARAM_INT, 'The number of times this tool is being used') 97 ), 'Tool' 98 ); 99 } 100 101 /** 102 * Returns description of a tool proxy 103 * 104 * @return external_function_parameters 105 * @since Moodle 3.1 106 */ 107 private static function tool_proxy_return_structure() { 108 return new external_function_parameters( 109 array( 110 'id' => new external_value(PARAM_INT, 'Tool proxy id'), 111 'name' => new external_value(PARAM_TEXT, 'Tool proxy name'), 112 'regurl' => new external_value(PARAM_URL, 'Tool proxy registration URL'), 113 'state' => new external_value(PARAM_INT, 'Tool proxy state'), 114 'guid' => new external_value(PARAM_TEXT, 'Tool proxy globally unique identifier'), 115 'secret' => new external_value(PARAM_TEXT, 'Tool proxy shared secret'), 116 'vendorcode' => new external_value(PARAM_TEXT, 'Tool proxy consumer code'), 117 'capabilityoffered' => new external_value(PARAM_TEXT, 'Tool proxy capabilities offered'), 118 'serviceoffered' => new external_value(PARAM_TEXT, 'Tool proxy services offered'), 119 'toolproxy' => new external_value(PARAM_TEXT, 'Tool proxy'), 120 'timecreated' => new external_value(PARAM_INT, 'Tool proxy time created'), 121 'timemodified' => new external_value(PARAM_INT, 'Tool proxy modified'), 122 ) 123 ); 124 } 125 126 /** 127 * Returns description of method parameters 128 * 129 * @return external_function_parameters 130 * @since Moodle 3.1 131 */ 132 public static function get_tool_proxies_parameters() { 133 return new external_function_parameters( 134 array( 135 'orphanedonly' => new external_value(PARAM_BOOL, 'Orphaned tool types only', VALUE_DEFAULT, 0) 136 ) 137 ); 138 } 139 140 /** 141 * Returns the tool types. 142 * 143 * @param bool $orphanedonly Retrieve only tool proxies that do not have a corresponding tool type 144 * @return array of tool types 145 * @since Moodle 3.1 146 * @throws moodle_exception 147 */ 148 public static function get_tool_proxies($orphanedonly) { 149 $params = self::validate_parameters(self::get_tool_proxies_parameters(), 150 array( 151 'orphanedonly' => $orphanedonly 152 )); 153 $orphanedonly = $params['orphanedonly']; 154 155 $context = context_system::instance(); 156 157 self::validate_context($context); 158 require_capability('moodle/site:config', $context); 159 160 return lti_get_tool_proxies($orphanedonly); 161 } 162 163 /** 164 * Returns description of method result value. 165 * 166 * @return \core_external\external_description 167 * @since Moodle 3.1 168 */ 169 public static function get_tool_proxies_returns() { 170 return new external_multiple_structure( 171 self::tool_proxy_return_structure() 172 ); 173 } 174 175 /** 176 * Returns description of method parameters. 177 * 178 * @return external_function_parameters 179 * @since Moodle 3.0 180 */ 181 public static function get_tool_launch_data_parameters() { 182 return new external_function_parameters( 183 array( 184 'toolid' => new external_value(PARAM_INT, 'external tool instance id') 185 ) 186 ); 187 } 188 189 /** 190 * Return the launch data for a given external tool. 191 * 192 * @param int $toolid the external tool instance id 193 * @return array of warnings and launch data 194 * @since Moodle 3.0 195 * @throws moodle_exception 196 */ 197 public static function get_tool_launch_data($toolid) { 198 global $DB, $CFG; 199 require_once($CFG->dirroot . '/mod/lti/lib.php'); 200 201 $params = self::validate_parameters(self::get_tool_launch_data_parameters(), 202 array( 203 'toolid' => $toolid 204 )); 205 $warnings = array(); 206 207 // Request and permission validation. 208 $lti = $DB->get_record('lti', array('id' => $params['toolid']), '*', MUST_EXIST); 209 list($course, $cm) = get_course_and_cm_from_instance($lti, 'lti'); 210 211 $context = context_module::instance($cm->id); 212 self::validate_context($context); 213 214 require_capability('mod/lti:view', $context); 215 216 $lti->cmid = $cm->id; 217 list($endpoint, $parms) = lti_get_launch_data($lti); 218 219 $parameters = array(); 220 foreach ($parms as $name => $value) { 221 $parameters[] = array( 222 'name' => $name, 223 'value' => $value 224 ); 225 } 226 227 $result = array(); 228 $result['endpoint'] = $endpoint; 229 $result['parameters'] = $parameters; 230 $result['warnings'] = $warnings; 231 return $result; 232 } 233 234 /** 235 * Returns description of method result value 236 * 237 * @return \core_external\external_description 238 * @since Moodle 3.0 239 */ 240 public static function get_tool_launch_data_returns() { 241 return new external_single_structure( 242 array( 243 'endpoint' => new external_value(PARAM_RAW, 'Endpoint URL'), // Using PARAM_RAW as is defined in the module. 244 'parameters' => new external_multiple_structure( 245 new external_single_structure( 246 array( 247 'name' => new external_value(PARAM_NOTAGS, 'Parameter name'), 248 'value' => new external_value(PARAM_RAW, 'Parameter value') 249 ) 250 ) 251 ), 252 'warnings' => new external_warnings() 253 ) 254 ); 255 } 256 257 /** 258 * Describes the parameters for get_ltis_by_courses. 259 * 260 * @return external_function_parameters 261 * @since Moodle 3.0 262 */ 263 public static function get_ltis_by_courses_parameters() { 264 return new external_function_parameters ( 265 array( 266 'courseids' => new external_multiple_structure( 267 new external_value(PARAM_INT, 'course id'), 'Array of course ids', VALUE_DEFAULT, array() 268 ), 269 ) 270 ); 271 } 272 273 /** 274 * Returns a list of external tools in a provided list of courses, 275 * if no list is provided all external tools that the user can view will be returned. 276 * 277 * @param array $courseids the course ids 278 * @return array the lti details 279 * @since Moodle 3.0 280 */ 281 public static function get_ltis_by_courses($courseids = array()) { 282 global $CFG; 283 284 $returnedltis = array(); 285 $warnings = array(); 286 287 $params = self::validate_parameters(self::get_ltis_by_courses_parameters(), array('courseids' => $courseids)); 288 289 $mycourses = array(); 290 if (empty($params['courseids'])) { 291 $mycourses = enrol_get_my_courses(); 292 $params['courseids'] = array_keys($mycourses); 293 } 294 295 // Ensure there are courseids to loop through. 296 if (!empty($params['courseids'])) { 297 298 list($courses, $warnings) = util::validate_courses($params['courseids'], $mycourses); 299 300 // Get the ltis in this course, this function checks users visibility permissions. 301 // We can avoid then additional validate_context calls. 302 $ltis = get_all_instances_in_courses("lti", $courses); 303 304 foreach ($ltis as $lti) { 305 306 $context = context_module::instance($lti->coursemodule); 307 308 // Entry to return. 309 $module = helper_for_get_mods_by_courses::standard_coursemodule_element_values( 310 $lti, 'mod_lti', 'moodle/course:manageactivities', 'mod/lti:view'); 311 312 $viewablefields = []; 313 if (has_capability('mod/lti:view', $context)) { 314 $viewablefields = array('launchcontainer', 'showtitlelaunch', 'showdescriptionlaunch', 'icon', 'secureicon'); 315 } 316 317 // Check additional permissions for returning optional private settings. 318 if (has_capability('moodle/course:manageactivities', $context)) { 319 $additionalfields = array('timecreated', 'timemodified', 'typeid', 'toolurl', 'securetoolurl', 320 'instructorchoicesendname', 'instructorchoicesendemailaddr', 'instructorchoiceallowroster', 321 'instructorchoiceallowsetting', 'instructorcustomparameters', 'instructorchoiceacceptgrades', 'grade', 322 'resourcekey', 'password', 'debuglaunch', 'servicesalt'); 323 $viewablefields = array_merge($viewablefields, $additionalfields); 324 } 325 326 foreach ($viewablefields as $field) { 327 $module[$field] = $lti->{$field}; 328 } 329 330 $returnedltis[] = $module; 331 } 332 } 333 334 $result = array(); 335 $result['ltis'] = $returnedltis; 336 $result['warnings'] = $warnings; 337 return $result; 338 } 339 340 /** 341 * Describes the get_ltis_by_courses return value. 342 * 343 * @return external_single_structure 344 * @since Moodle 3.0 345 */ 346 public static function get_ltis_by_courses_returns() { 347 348 return new external_single_structure( 349 array( 350 'ltis' => new external_multiple_structure( 351 new external_single_structure(array_merge( 352 helper_for_get_mods_by_courses::standard_coursemodule_elements_returns(true), 353 [ 354 'timecreated' => new external_value(PARAM_INT, 'Time of creation', VALUE_OPTIONAL), 355 'timemodified' => new external_value(PARAM_INT, 'Time of last modification', VALUE_OPTIONAL), 356 'typeid' => new external_value(PARAM_INT, 'Type id', VALUE_OPTIONAL), 357 'toolurl' => new external_value(PARAM_URL, 'Tool url', VALUE_OPTIONAL), 358 'securetoolurl' => new external_value(PARAM_RAW, 'Secure tool url', VALUE_OPTIONAL), 359 'instructorchoicesendname' => new external_value(PARAM_TEXT, 'Instructor choice send name', 360 VALUE_OPTIONAL), 361 'instructorchoicesendemailaddr' => new external_value(PARAM_INT, 'instructor choice send mail address', 362 VALUE_OPTIONAL), 363 'instructorchoiceallowroster' => new external_value(PARAM_INT, 'Instructor choice allow roster', 364 VALUE_OPTIONAL), 365 'instructorchoiceallowsetting' => new external_value(PARAM_INT, 'Instructor choice allow setting', 366 VALUE_OPTIONAL), 367 'instructorcustomparameters' => new external_value(PARAM_RAW, 'instructor custom parameters', 368 VALUE_OPTIONAL), 369 'instructorchoiceacceptgrades' => new external_value(PARAM_INT, 'instructor choice accept grades', 370 VALUE_OPTIONAL), 371 'grade' => new external_value(PARAM_INT, 'Enable grades', VALUE_OPTIONAL), 372 'launchcontainer' => new external_value(PARAM_INT, 'Launch container mode', VALUE_OPTIONAL), 373 'resourcekey' => new external_value(PARAM_RAW, 'Resource key', VALUE_OPTIONAL), 374 'password' => new external_value(PARAM_RAW, 'Shared secret', VALUE_OPTIONAL), 375 'debuglaunch' => new external_value(PARAM_INT, 'Debug launch', VALUE_OPTIONAL), 376 'showtitlelaunch' => new external_value(PARAM_INT, 'Show title launch', VALUE_OPTIONAL), 377 'showdescriptionlaunch' => new external_value(PARAM_INT, 'Show description launch', VALUE_OPTIONAL), 378 'servicesalt' => new external_value(PARAM_RAW, 'Service salt', VALUE_OPTIONAL), 379 'icon' => new external_value(PARAM_URL, 'Alternative icon URL', VALUE_OPTIONAL), 380 'secureicon' => new external_value(PARAM_URL, 'Secure icon URL', VALUE_OPTIONAL), 381 ] 382 ), 'Tool') 383 ), 384 'warnings' => new external_warnings(), 385 ) 386 ); 387 } 388 389 /** 390 * Returns description of method parameters 391 * 392 * @return external_function_parameters 393 * @since Moodle 3.0 394 */ 395 public static function view_lti_parameters() { 396 return new external_function_parameters( 397 array( 398 'ltiid' => new external_value(PARAM_INT, 'lti instance id') 399 ) 400 ); 401 } 402 403 /** 404 * Trigger the course module viewed event and update the module completion status. 405 * 406 * @param int $ltiid the lti instance id 407 * @return array of warnings and status result 408 * @since Moodle 3.0 409 * @throws moodle_exception 410 */ 411 public static function view_lti($ltiid) { 412 global $DB; 413 414 $params = self::validate_parameters(self::view_lti_parameters(), 415 array( 416 'ltiid' => $ltiid 417 )); 418 $warnings = array(); 419 420 // Request and permission validation. 421 $lti = $DB->get_record('lti', array('id' => $params['ltiid']), '*', MUST_EXIST); 422 list($course, $cm) = get_course_and_cm_from_instance($lti, 'lti'); 423 424 $context = context_module::instance($cm->id); 425 self::validate_context($context); 426 require_capability('mod/lti:view', $context); 427 428 // Trigger course_module_viewed event and completion. 429 lti_view($lti, $course, $cm, $context); 430 431 $result = array(); 432 $result['status'] = true; 433 $result['warnings'] = $warnings; 434 return $result; 435 } 436 437 /** 438 * Returns description of method result value 439 * 440 * @return \core_external\external_description 441 * @since Moodle 3.0 442 */ 443 public static function view_lti_returns() { 444 return new external_single_structure( 445 array( 446 'status' => new external_value(PARAM_BOOL, 'status: true if success'), 447 'warnings' => new external_warnings() 448 ) 449 ); 450 } 451 452 /** 453 * Returns description of method parameters 454 * 455 * @return external_function_parameters 456 * @since Moodle 3.1 457 */ 458 public static function create_tool_proxy_parameters() { 459 return new external_function_parameters( 460 array( 461 'name' => new external_value(PARAM_TEXT, 'Tool proxy name', VALUE_DEFAULT, ''), 462 'regurl' => new external_value(PARAM_URL, 'Tool proxy registration URL'), 463 'capabilityoffered' => new external_multiple_structure( 464 new external_value(PARAM_TEXT, 'Tool proxy capabilities offered'), 465 'Array of capabilities', VALUE_DEFAULT, array() 466 ), 467 'serviceoffered' => new external_multiple_structure( 468 new external_value(PARAM_TEXT, 'Tool proxy services offered'), 469 'Array of services', VALUE_DEFAULT, array() 470 ) 471 ) 472 ); 473 } 474 475 /** 476 * Creates a new tool proxy 477 * 478 * @param string $name Tool proxy name 479 * @param string $registrationurl Registration url 480 * @param string[] $capabilityoffered List of capabilities this tool proxy should be offered 481 * @param string[] $serviceoffered List of services this tool proxy should be offered 482 * @return object The new tool proxy 483 * @since Moodle 3.1 484 * @throws moodle_exception 485 */ 486 public static function create_tool_proxy($name, $registrationurl, $capabilityoffered, $serviceoffered) { 487 $params = self::validate_parameters(self::create_tool_proxy_parameters(), 488 array( 489 'name' => $name, 490 'regurl' => $registrationurl, 491 'capabilityoffered' => $capabilityoffered, 492 'serviceoffered' => $serviceoffered 493 )); 494 $name = $params['name']; 495 $regurl = $params['regurl']; 496 $capabilityoffered = $params['capabilityoffered']; 497 $serviceoffered = $params['serviceoffered']; 498 499 $context = context_system::instance(); 500 self::validate_context($context); 501 require_capability('moodle/site:config', $context); 502 503 // Can't create duplicate proxies with the same URL. 504 $duplicates = lti_get_tool_proxies_from_registration_url($registrationurl); 505 if (!empty($duplicates)) { 506 throw new moodle_exception('duplicateregurl', 'mod_lti'); 507 } 508 509 $config = new stdClass(); 510 $config->lti_registrationurl = $registrationurl; 511 512 if (!empty($name)) { 513 $config->lti_registrationname = $name; 514 } 515 516 if (!empty($capabilityoffered)) { 517 $config->lti_capabilities = $capabilityoffered; 518 } 519 520 if (!empty($serviceoffered)) { 521 $config->lti_services = $serviceoffered; 522 } 523 524 $id = lti_add_tool_proxy($config); 525 $toolproxy = lti_get_tool_proxy($id); 526 527 // Pending makes more sense than configured as the first state, since 528 // the next step is to register, which requires the state be pending. 529 $toolproxy->state = LTI_TOOL_PROXY_STATE_PENDING; 530 lti_update_tool_proxy($toolproxy); 531 532 return $toolproxy; 533 } 534 535 /** 536 * Returns description of method result value 537 * 538 * @return \core_external\external_description 539 * @since Moodle 3.1 540 */ 541 public static function create_tool_proxy_returns() { 542 return self::tool_proxy_return_structure(); 543 } 544 545 /** 546 * Returns description of method parameters 547 * 548 * @return external_function_parameters 549 * @since Moodle 3.1 550 */ 551 public static function delete_tool_proxy_parameters() { 552 return new external_function_parameters( 553 array( 554 'id' => new external_value(PARAM_INT, 'Tool proxy id'), 555 ) 556 ); 557 } 558 559 /** 560 * Trigger the course module viewed event and update the module completion status. 561 * 562 * @param int $id the lti instance id 563 * @return object The tool proxy 564 * @since Moodle 3.1 565 * @throws moodle_exception 566 */ 567 public static function delete_tool_proxy($id) { 568 $params = self::validate_parameters(self::delete_tool_proxy_parameters(), 569 array( 570 'id' => $id, 571 )); 572 $id = $params['id']; 573 574 $context = context_system::instance(); 575 self::validate_context($context); 576 require_capability('moodle/site:config', $context); 577 578 $toolproxy = lti_get_tool_proxy($id); 579 580 lti_delete_tool_proxy($id); 581 582 return $toolproxy; 583 } 584 585 /** 586 * Returns description of method result value 587 * 588 * @return \core_external\external_description 589 * @since Moodle 3.1 590 */ 591 public static function delete_tool_proxy_returns() { 592 return self::tool_proxy_return_structure(); 593 } 594 595 /** 596 * Returns description of method parameters 597 * 598 * @return external_function_parameters 599 * @since Moodle 3.0 600 */ 601 public static function get_tool_proxy_registration_request_parameters() { 602 return new external_function_parameters( 603 array( 604 'id' => new external_value(PARAM_INT, 'Tool proxy id'), 605 ) 606 ); 607 } 608 609 /** 610 * Returns the registration request for a tool proxy. 611 * 612 * @param int $id the lti instance id 613 * @return array of registration parameters 614 * @since Moodle 3.1 615 * @throws moodle_exception 616 */ 617 public static function get_tool_proxy_registration_request($id) { 618 $params = self::validate_parameters(self::get_tool_proxy_registration_request_parameters(), 619 array( 620 'id' => $id, 621 )); 622 $id = $params['id']; 623 624 $context = context_system::instance(); 625 self::validate_context($context); 626 require_capability('moodle/site:config', $context); 627 628 $toolproxy = lti_get_tool_proxy($id); 629 return lti_build_registration_request($toolproxy); 630 } 631 632 /** 633 * Returns description of method result value 634 * 635 * @return \core_external\external_description 636 * @since Moodle 3.1 637 */ 638 public static function get_tool_proxy_registration_request_returns() { 639 return new external_function_parameters( 640 array( 641 'lti_message_type' => new external_value(PARAM_ALPHANUMEXT, 'LTI message type'), 642 'lti_version' => new external_value(PARAM_ALPHANUMEXT, 'LTI version'), 643 'reg_key' => new external_value(PARAM_TEXT, 'Tool proxy registration key'), 644 'reg_password' => new external_value(PARAM_TEXT, 'Tool proxy registration password'), 645 'reg_url' => new external_value(PARAM_TEXT, 'Tool proxy registration url'), 646 'tc_profile_url' => new external_value(PARAM_URL, 'Tool consumers profile URL'), 647 'launch_presentation_return_url' => new external_value(PARAM_URL, 'URL to redirect on registration completion'), 648 ) 649 ); 650 } 651 652 /** 653 * Returns description of method parameters 654 * 655 * @return external_function_parameters 656 * @since Moodle 3.1 657 */ 658 public static function get_tool_types_parameters() { 659 return new external_function_parameters( 660 array( 661 'toolproxyid' => new external_value(PARAM_INT, 'Tool proxy id', VALUE_DEFAULT, 0) 662 ) 663 ); 664 } 665 666 /** 667 * Returns the tool types. 668 * 669 * @param int $toolproxyid The tool proxy id 670 * @return array of tool types 671 * @since Moodle 3.1 672 * @throws moodle_exception 673 */ 674 public static function get_tool_types($toolproxyid) { 675 global $PAGE; 676 $params = self::validate_parameters(self::get_tool_types_parameters(), 677 array( 678 'toolproxyid' => $toolproxyid 679 )); 680 $toolproxyid = $params['toolproxyid']; 681 682 $types = array(); 683 $context = context_system::instance(); 684 685 self::validate_context($context); 686 require_capability('moodle/site:config', $context); 687 688 if (!empty($toolproxyid)) { 689 $types = lti_get_lti_types_from_proxy_id($toolproxyid); 690 } else { 691 $types = lti_get_lti_types(); 692 } 693 694 return array_map("serialise_tool_type", array_values($types)); 695 } 696 697 /** 698 * Returns description of method result value 699 * 700 * @return \core_external\external_description 701 * @since Moodle 3.1 702 */ 703 public static function get_tool_types_returns() { 704 return new external_multiple_structure( 705 self::tool_type_return_structure() 706 ); 707 } 708 709 /** 710 * Returns description of method parameters 711 * 712 * @return external_function_parameters 713 * @since Moodle 3.1 714 */ 715 public static function create_tool_type_parameters() { 716 return new external_function_parameters( 717 array( 718 'cartridgeurl' => new external_value(PARAM_URL, 'URL to cardridge to load tool information', VALUE_DEFAULT, ''), 719 'key' => new external_value(PARAM_TEXT, 'Consumer key', VALUE_DEFAULT, ''), 720 'secret' => new external_value(PARAM_TEXT, 'Shared secret', VALUE_DEFAULT, ''), 721 ) 722 ); 723 } 724 725 /** 726 * Creates a tool type. 727 * 728 * @param string $cartridgeurl Url of the xml cartridge representing the LTI tool 729 * @param string $key The consumer key to identify this consumer 730 * @param string $secret The secret 731 * @return array created tool type 732 * @since Moodle 3.1 733 * @throws moodle_exception If the tool type could not be created 734 */ 735 public static function create_tool_type($cartridgeurl, $key, $secret) { 736 $params = self::validate_parameters(self::create_tool_type_parameters(), 737 array( 738 'cartridgeurl' => $cartridgeurl, 739 'key' => $key, 740 'secret' => $secret 741 )); 742 $cartridgeurl = $params['cartridgeurl']; 743 $key = $params['key']; 744 $secret = $params['secret']; 745 746 $context = context_system::instance(); 747 self::validate_context($context); 748 require_capability('moodle/site:config', $context); 749 750 $id = null; 751 752 if (!empty($cartridgeurl)) { 753 $type = new stdClass(); 754 $data = new stdClass(); 755 $type->state = LTI_TOOL_STATE_CONFIGURED; 756 $data->lti_coursevisible = 1; 757 $data->lti_sendname = LTI_SETTING_DELEGATE; 758 $data->lti_sendemailaddr = LTI_SETTING_DELEGATE; 759 $data->lti_acceptgrades = LTI_SETTING_DELEGATE; 760 $data->lti_forcessl = 0; 761 762 if (!empty($key)) { 763 $data->lti_resourcekey = $key; 764 } 765 766 if (!empty($secret)) { 767 $data->lti_password = $secret; 768 } 769 770 lti_load_type_from_cartridge($cartridgeurl, $data); 771 if (empty($data->lti_toolurl)) { 772 throw new moodle_exception('unabletocreatetooltype', 'mod_lti'); 773 } else { 774 $id = lti_add_type($type, $data); 775 } 776 } 777 778 if (!empty($id)) { 779 $type = lti_get_type($id); 780 return serialise_tool_type($type); 781 } else { 782 throw new moodle_exception('unabletocreatetooltype', 'mod_lti'); 783 } 784 } 785 786 /** 787 * Returns description of method result value 788 * 789 * @return \core_external\external_description 790 * @since Moodle 3.1 791 */ 792 public static function create_tool_type_returns() { 793 return self::tool_type_return_structure(); 794 } 795 796 /** 797 * Returns description of method parameters 798 * 799 * @return external_function_parameters 800 * @since Moodle 3.1 801 */ 802 public static function update_tool_type_parameters() { 803 return new external_function_parameters( 804 array( 805 'id' => new external_value(PARAM_INT, 'Tool type id'), 806 'name' => new external_value(PARAM_RAW, 'Tool type name', VALUE_DEFAULT, null), 807 'description' => new external_value(PARAM_RAW, 'Tool type description', VALUE_DEFAULT, null), 808 'state' => new external_value(PARAM_INT, 'Tool type state', VALUE_DEFAULT, null) 809 ) 810 ); 811 } 812 813 /** 814 * Update a tool type. 815 * 816 * @param int $id The id of the tool type to update 817 * @param string $name The name of the tool type 818 * @param string $description The name of the tool type 819 * @param int $state The state of the tool type 820 * @return array updated tool type 821 * @since Moodle 3.1 822 * @throws moodle_exception 823 */ 824 public static function update_tool_type($id, $name, $description, $state) { 825 $params = self::validate_parameters(self::update_tool_type_parameters(), 826 array( 827 'id' => $id, 828 'name' => $name, 829 'description' => $description, 830 'state' => $state, 831 )); 832 $id = $params['id']; 833 $name = $params['name']; 834 $description = $params['description']; 835 $state = $params['state']; 836 837 $context = context_system::instance(); 838 self::validate_context($context); 839 require_capability('moodle/site:config', $context); 840 841 $type = lti_get_type($id); 842 843 if (empty($type)) { 844 throw new moodle_exception('unabletofindtooltype', 'mod_lti', '', array('id' => $id)); 845 } 846 847 if (!empty($name)) { 848 $type->name = $name; 849 } 850 851 if (!empty($description)) { 852 $type->description = $description; 853 } 854 855 if (!empty($state)) { 856 // Valid state range. 857 if (in_array($state, array(1, 2, 3))) { 858 $type->state = $state; 859 } else { 860 throw new moodle_exception("Invalid state: $state - must be 1, 2, or 3"); 861 } 862 } 863 864 lti_update_type($type, new stdClass()); 865 866 return serialise_tool_type($type); 867 } 868 869 /** 870 * Returns description of method result value 871 * 872 * @return \core_external\external_description 873 * @since Moodle 3.1 874 */ 875 public static function update_tool_type_returns() { 876 return self::tool_type_return_structure(); 877 } 878 879 /** 880 * Returns description of method parameters 881 * 882 * @return external_function_parameters 883 * @since Moodle 3.1 884 */ 885 public static function delete_tool_type_parameters() { 886 return new external_function_parameters( 887 array( 888 'id' => new external_value(PARAM_INT, 'Tool type id'), 889 ) 890 ); 891 } 892 893 /** 894 * Delete a tool type. 895 * 896 * @param int $id The id of the tool type to be deleted 897 * @return array deleted tool type 898 * @since Moodle 3.1 899 * @throws moodle_exception 900 */ 901 public static function delete_tool_type($id) { 902 $params = self::validate_parameters(self::delete_tool_type_parameters(), 903 array( 904 'id' => $id, 905 )); 906 $id = $params['id']; 907 908 $context = context_system::instance(); 909 self::validate_context($context); 910 require_capability('moodle/site:config', $context); 911 912 $type = lti_get_type($id); 913 914 if (!empty($type)) { 915 lti_delete_type($id); 916 917 // If this is the last type for this proxy then remove the proxy 918 // as well so that it isn't orphaned. 919 $types = lti_get_lti_types_from_proxy_id($type->toolproxyid); 920 if (empty($types)) { 921 lti_delete_tool_proxy($type->toolproxyid); 922 } 923 } 924 925 return array('id' => $id); 926 } 927 928 /** 929 * Returns description of method result value 930 * 931 * @return \core_external\external_description 932 * @since Moodle 3.1 933 */ 934 public static function delete_tool_type_returns() { 935 return new external_function_parameters( 936 array( 937 'id' => new external_value(PARAM_INT, 'Tool type id'), 938 ) 939 ); 940 } 941 942 /** 943 * Returns description of method parameters 944 * 945 * @return external_function_parameters 946 * @since Moodle 3.1 947 */ 948 public static function is_cartridge_parameters() { 949 return new external_function_parameters( 950 array( 951 'url' => new external_value(PARAM_URL, 'Tool url'), 952 ) 953 ); 954 } 955 956 /** 957 * Determine if the url to a tool is for a cartridge. 958 * 959 * @param string $url Url that may or may not be an xml cartridge 960 * @return bool True if the url is for a cartridge. 961 * @since Moodle 3.1 962 * @throws moodle_exception 963 */ 964 public static function is_cartridge($url) { 965 $params = self::validate_parameters(self::is_cartridge_parameters(), 966 array( 967 'url' => $url, 968 )); 969 $url = $params['url']; 970 971 $context = context_system::instance(); 972 self::validate_context($context); 973 require_capability('moodle/site:config', $context); 974 975 $iscartridge = lti_is_cartridge($url); 976 977 return array('iscartridge' => $iscartridge); 978 } 979 980 /** 981 * Returns description of method result value 982 * 983 * @return \core_external\external_description 984 * @since Moodle 3.1 985 */ 986 public static function is_cartridge_returns() { 987 return new external_function_parameters( 988 array( 989 'iscartridge' => new external_value(PARAM_BOOL, 'True if the URL is a cartridge'), 990 ) 991 ); 992 } 993 }
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