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Developer Documentation
- Bug fixes for general core bugs in 4.0.x will end 8 May 2023 (12 months).
- Bug fixes for security issues in 4.0.x will end 13 November 2023 (18 months).
- PHP version: minimum PHP 7.3.0 Note: the minimum PHP version has increased since Moodle 3.10. PHP 7.4.x is also supported.
/lib/ -> badgeslib.php (source)
Differences Between: [Versions 310 and 400] [Versions 39 and 400] [Versions 400 and 402] [Versions 400 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 * Contains classes, functions and constants used in badges. 19 * 20 * @package core 21 * @subpackage badges 22 * @copyright 2012 onwards Totara Learning Solutions Ltd {@link http://www.totaralms.com/} 23 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later 24 * @author Yuliya Bozhko <yuliya.bozhko@totaralms.com> 25 */ 26 27 defined('MOODLE_INTERNAL') || die(); 28 29 /* Include required award criteria library. */ 30 require_once($CFG->dirroot . '/badges/criteria/award_criteria.php'); 31 32 /* 33 * Number of records per page. 34 */ 35 define('BADGE_PERPAGE', 50); 36 37 /* 38 * Badge award criteria aggregation method. 39 */ 40 define('BADGE_CRITERIA_AGGREGATION_ALL', 1); 41 42 /* 43 * Badge award criteria aggregation method. 44 */ 45 define('BADGE_CRITERIA_AGGREGATION_ANY', 2); 46 47 /* 48 * Inactive badge means that this badge cannot be earned and has not been awarded 49 * yet. Its award criteria can be changed. 50 */ 51 define('BADGE_STATUS_INACTIVE', 0); 52 53 /* 54 * Active badge means that this badge can we earned, but it has not been awarded 55 * yet. Can be deactivated for the purpose of changing its criteria. 56 */ 57 define('BADGE_STATUS_ACTIVE', 1); 58 59 /* 60 * Inactive badge can no longer be earned, but it has been awarded in the past and 61 * therefore its criteria cannot be changed. 62 */ 63 define('BADGE_STATUS_INACTIVE_LOCKED', 2); 64 65 /* 66 * Active badge means that it can be earned and has already been awarded to users. 67 * Its criteria cannot be changed any more. 68 */ 69 define('BADGE_STATUS_ACTIVE_LOCKED', 3); 70 71 /* 72 * Archived badge is considered deleted and can no longer be earned and is not 73 * displayed in the list of all badges. 74 */ 75 define('BADGE_STATUS_ARCHIVED', 4); 76 77 /* 78 * Badge type for site badges. 79 */ 80 define('BADGE_TYPE_SITE', 1); 81 82 /* 83 * Badge type for course badges. 84 */ 85 define('BADGE_TYPE_COURSE', 2); 86 87 /* 88 * Badge messaging schedule options. 89 */ 90 define('BADGE_MESSAGE_NEVER', 0); 91 define('BADGE_MESSAGE_ALWAYS', 1); 92 define('BADGE_MESSAGE_DAILY', 2); 93 define('BADGE_MESSAGE_WEEKLY', 3); 94 define('BADGE_MESSAGE_MONTHLY', 4); 95 96 /* 97 * URL of backpack. Custom ones can be added. 98 */ 99 define('BADGRIO_BACKPACKAPIURL', 'https://api.badgr.io/v2'); 100 define('BADGRIO_BACKPACKWEBURL', 'https://badgr.io'); 101 102 /* 103 * @deprecated since 3.9 (MDL-66357). 104 */ 105 define('BADGE_BACKPACKAPIURL', 'https://backpack.openbadges.org'); 106 define('BADGE_BACKPACKWEBURL', 'https://backpack.openbadges.org'); 107 108 /* 109 * Open Badges specifications. 110 */ 111 define('OPEN_BADGES_V1', 1); 112 define('OPEN_BADGES_V2', 2); 113 define('OPEN_BADGES_V2P1', 2.1); 114 115 /* 116 * Only use for Open Badges 2.0 specification 117 */ 118 define('OPEN_BADGES_V2_CONTEXT', 'https://w3id.org/openbadges/v2'); 119 define('OPEN_BADGES_V2_TYPE_ASSERTION', 'Assertion'); 120 define('OPEN_BADGES_V2_TYPE_BADGE', 'BadgeClass'); 121 define('OPEN_BADGES_V2_TYPE_ISSUER', 'Issuer'); 122 define('OPEN_BADGES_V2_TYPE_ENDORSEMENT', 'Endorsement'); 123 define('OPEN_BADGES_V2_TYPE_AUTHOR', 'Author'); 124 125 define('BACKPACK_MOVE_UP', -1); 126 define('BACKPACK_MOVE_DOWN', 1); 127 128 // Global badge class has been moved to the component namespace. 129 class_alias('\core_badges\badge', 'badge'); 130 131 /** 132 * Sends notifications to users about awarded badges. 133 * 134 * @param badge $badge Badge that was issued 135 * @param int $userid Recipient ID 136 * @param string $issued Unique hash of an issued badge 137 * @param string $filepathhash File path hash of an issued badge for attachments 138 */ 139 function badges_notify_badge_award(badge $badge, $userid, $issued, $filepathhash) { 140 global $CFG, $DB; 141 142 $admin = get_admin(); 143 $userfrom = new stdClass(); 144 $userfrom->id = $admin->id; 145 $userfrom->email = !empty($CFG->badges_defaultissuercontact) ? $CFG->badges_defaultissuercontact : $admin->email; 146 foreach (\core_user\fields::get_name_fields() as $addname) { 147 $userfrom->$addname = !empty($CFG->badges_defaultissuername) ? '' : $admin->$addname; 148 } 149 $userfrom->firstname = !empty($CFG->badges_defaultissuername) ? $CFG->badges_defaultissuername : $admin->firstname; 150 $userfrom->maildisplay = true; 151 152 $issuedlink = html_writer::link(new moodle_url('/badges/badge.php', array('hash' => $issued)), $badge->name); 153 $userto = $DB->get_record('user', array('id' => $userid), '*', MUST_EXIST); 154 155 $params = new stdClass(); 156 $params->badgename = $badge->name; 157 $params->username = fullname($userto); 158 $params->badgelink = $issuedlink; 159 $message = badge_message_from_template($badge->message, $params); 160 $plaintext = html_to_text($message); 161 162 // Notify recipient. 163 $eventdata = new \core\message\message(); 164 $eventdata->courseid = is_null($badge->courseid) ? SITEID : $badge->courseid; // Profile/site come with no courseid. 165 $eventdata->component = 'moodle'; 166 $eventdata->name = 'badgerecipientnotice'; 167 $eventdata->userfrom = $userfrom; 168 $eventdata->userto = $userto; 169 $eventdata->notification = 1; 170 $eventdata->subject = $badge->messagesubject; 171 $eventdata->fullmessage = $plaintext; 172 $eventdata->fullmessageformat = FORMAT_HTML; 173 $eventdata->fullmessagehtml = $message; 174 $eventdata->smallmessage = ''; 175 $eventdata->customdata = [ 176 'notificationiconurl' => moodle_url::make_pluginfile_url( 177 $badge->get_context()->id, 'badges', 'badgeimage', $badge->id, '/', 'f1')->out(), 178 'hash' => $issued, 179 ]; 180 181 // Attach badge image if possible. 182 if (!empty($CFG->allowattachments) && $badge->attachment && is_string($filepathhash)) { 183 $fs = get_file_storage(); 184 $file = $fs->get_file_by_hash($filepathhash); 185 $eventdata->attachment = $file; 186 $eventdata->attachname = str_replace(' ', '_', $badge->name) . ".png"; 187 188 message_send($eventdata); 189 } else { 190 message_send($eventdata); 191 } 192 193 // Notify badge creator about the award if they receive notifications every time. 194 if ($badge->notification == 1) { 195 $userfrom = core_user::get_noreply_user(); 196 $userfrom->maildisplay = true; 197 198 $creator = $DB->get_record('user', array('id' => $badge->usercreated), '*', MUST_EXIST); 199 $a = new stdClass(); 200 $a->user = fullname($userto); 201 $a->link = $issuedlink; 202 $creatormessage = get_string('creatorbody', 'badges', $a); 203 $creatorsubject = get_string('creatorsubject', 'badges', $badge->name); 204 205 $eventdata = new \core\message\message(); 206 $eventdata->courseid = $badge->courseid; 207 $eventdata->component = 'moodle'; 208 $eventdata->name = 'badgecreatornotice'; 209 $eventdata->userfrom = $userfrom; 210 $eventdata->userto = $creator; 211 $eventdata->notification = 1; 212 $eventdata->subject = $creatorsubject; 213 $eventdata->fullmessage = html_to_text($creatormessage); 214 $eventdata->fullmessageformat = FORMAT_HTML; 215 $eventdata->fullmessagehtml = $creatormessage; 216 $eventdata->smallmessage = ''; 217 $eventdata->customdata = [ 218 'notificationiconurl' => moodle_url::make_pluginfile_url( 219 $badge->get_context()->id, 'badges', 'badgeimage', $badge->id, '/', 'f1')->out(), 220 'hash' => $issued, 221 ]; 222 223 message_send($eventdata); 224 $DB->set_field('badge_issued', 'issuernotified', time(), array('badgeid' => $badge->id, 'userid' => $userid)); 225 } 226 } 227 228 /** 229 * Caclulates date for the next message digest to badge creators. 230 * 231 * @param in $schedule Type of message schedule BADGE_MESSAGE_DAILY|BADGE_MESSAGE_WEEKLY|BADGE_MESSAGE_MONTHLY. 232 * @return int Timestamp for next cron 233 */ 234 function badges_calculate_message_schedule($schedule) { 235 $nextcron = 0; 236 237 switch ($schedule) { 238 case BADGE_MESSAGE_DAILY: 239 $tomorrow = new DateTime("1 day", core_date::get_server_timezone_object()); 240 $nextcron = $tomorrow->getTimestamp(); 241 break; 242 case BADGE_MESSAGE_WEEKLY: 243 $nextweek = new DateTime("1 week", core_date::get_server_timezone_object()); 244 $nextcron = $nextweek->getTimestamp(); 245 break; 246 case BADGE_MESSAGE_MONTHLY: 247 $nextmonth = new DateTime("1 month", core_date::get_server_timezone_object()); 248 $nextcron = $nextmonth->getTimestamp(); 249 break; 250 } 251 252 return $nextcron; 253 } 254 255 /** 256 * Replaces variables in a message template and returns text ready to be emailed to a user. 257 * 258 * @param string $message Message body. 259 * @return string Message with replaced values 260 */ 261 function badge_message_from_template($message, $params) { 262 $msg = $message; 263 foreach ($params as $key => $value) { 264 $msg = str_replace("%$key%", $value, $msg); 265 } 266 267 return $msg; 268 } 269 270 /** 271 * Get all badges. 272 * 273 * @param int Type of badges to return 274 * @param int Course ID for course badges 275 * @param string $sort An SQL field to sort by 276 * @param string $dir The sort direction ASC|DESC 277 * @param int $page The page or records to return 278 * @param int $perpage The number of records to return per page 279 * @param int $user User specific search 280 * @return array $badge Array of records matching criteria 281 */ 282 function badges_get_badges($type, $courseid = 0, $sort = '', $dir = '', $page = 0, $perpage = BADGE_PERPAGE, $user = 0) { 283 global $DB; 284 $records = array(); 285 $params = array(); 286 $where = "b.status != :deleted AND b.type = :type "; 287 $params['deleted'] = BADGE_STATUS_ARCHIVED; 288 289 $userfields = array('b.id, b.name, b.status'); 290 $usersql = ""; 291 if ($user != 0) { 292 $userfields[] = 'bi.dateissued'; 293 $userfields[] = 'bi.uniquehash'; 294 $usersql = " LEFT JOIN {badge_issued} bi ON b.id = bi.badgeid AND bi.userid = :userid "; 295 $params['userid'] = $user; 296 $where .= " AND (b.status = 1 OR b.status = 3) "; 297 } 298 $fields = implode(', ', $userfields); 299 300 if ($courseid != 0 ) { 301 $where .= "AND b.courseid = :courseid "; 302 $params['courseid'] = $courseid; 303 } 304 305 $sorting = (($sort != '' && $dir != '') ? 'ORDER BY ' . $sort . ' ' . $dir : ''); 306 $params['type'] = $type; 307 308 $sql = "SELECT $fields FROM {badge} b $usersql WHERE $where $sorting"; 309 $records = $DB->get_records_sql($sql, $params, $page * $perpage, $perpage); 310 311 $badges = array(); 312 foreach ($records as $r) { 313 $badge = new badge($r->id); 314 $badges[$r->id] = $badge; 315 if ($user != 0) { 316 $badges[$r->id]->dateissued = $r->dateissued; 317 $badges[$r->id]->uniquehash = $r->uniquehash; 318 } else { 319 $badges[$r->id]->awards = $DB->count_records_sql('SELECT COUNT(b.userid) 320 FROM {badge_issued} b INNER JOIN {user} u ON b.userid = u.id 321 WHERE b.badgeid = :badgeid AND u.deleted = 0', array('badgeid' => $badge->id)); 322 $badges[$r->id]->statstring = $badge->get_status_name(); 323 } 324 } 325 return $badges; 326 } 327 328 /** 329 * Get badges for a specific user. 330 * 331 * @param int $userid User ID 332 * @param int $courseid Badges earned by a user in a specific course 333 * @param int $page The page or records to return 334 * @param int $perpage The number of records to return per page 335 * @param string $search A simple string to search for 336 * @param bool $onlypublic Return only public badges 337 * @return array of badges ordered by decreasing date of issue 338 */ 339 function badges_get_user_badges($userid, $courseid = 0, $page = 0, $perpage = 0, $search = '', $onlypublic = false) { 340 global $CFG, $DB; 341 342 $params = array( 343 'userid' => $userid 344 ); 345 $sql = 'SELECT 346 bi.uniquehash, 347 bi.dateissued, 348 bi.dateexpire, 349 bi.id as issuedid, 350 bi.visible, 351 u.email, 352 b.* 353 FROM 354 {badge} b, 355 {badge_issued} bi, 356 {user} u 357 WHERE b.id = bi.badgeid 358 AND u.id = bi.userid 359 AND bi.userid = :userid'; 360 361 if (!empty($search)) { 362 $sql .= ' AND (' . $DB->sql_like('b.name', ':search', false) . ') '; 363 $params['search'] = '%'.$DB->sql_like_escape($search).'%'; 364 } 365 if ($onlypublic) { 366 $sql .= ' AND (bi.visible = 1) '; 367 } 368 369 if (empty($CFG->badges_allowcoursebadges)) { 370 $sql .= ' AND b.courseid IS NULL'; 371 } else if ($courseid != 0) { 372 $sql .= ' AND (b.courseid = :courseid) '; 373 $params['courseid'] = $courseid; 374 } 375 $sql .= ' ORDER BY bi.dateissued DESC'; 376 $badges = $DB->get_records_sql($sql, $params, $page * $perpage, $perpage); 377 378 return $badges; 379 } 380 381 /** 382 * Extends the course administration navigation with the Badges page 383 * 384 * @param navigation_node $coursenode 385 * @param object $course 386 */ 387 function badges_add_course_navigation(navigation_node $coursenode, stdClass $course) { 388 global $CFG, $SITE; 389 390 $coursecontext = context_course::instance($course->id); 391 $isfrontpage = (!$coursecontext || $course->id == $SITE->id); 392 $canmanage = has_any_capability(array('moodle/badges:viewawarded', 393 'moodle/badges:createbadge', 394 'moodle/badges:awardbadge', 395 'moodle/badges:configurecriteria', 396 'moodle/badges:configuremessages', 397 'moodle/badges:configuredetails', 398 'moodle/badges:deletebadge'), $coursecontext); 399 400 if (!empty($CFG->enablebadges) && !empty($CFG->badges_allowcoursebadges) && !$isfrontpage && $canmanage) { 401 $coursenode->add(get_string('coursebadges', 'badges'), null, 402 navigation_node::TYPE_CONTAINER, null, 'coursebadges', 403 new pix_icon('i/badge', get_string('coursebadges', 'badges'))); 404 405 $url = new moodle_url('/badges/index.php', array('type' => BADGE_TYPE_COURSE, 'id' => $course->id)); 406 407 $coursenode->get('coursebadges')->add(get_string('managebadges', 'badges'), $url, 408 navigation_node::TYPE_SETTING, null, 'coursebadges'); 409 410 if (has_capability('moodle/badges:createbadge', $coursecontext)) { 411 $url = new moodle_url('/badges/newbadge.php', array('type' => BADGE_TYPE_COURSE, 'id' => $course->id)); 412 413 $coursenode->get('coursebadges')->add(get_string('newbadge', 'badges'), $url, 414 navigation_node::TYPE_SETTING, null, 'newbadge'); 415 } 416 } 417 } 418 419 /** 420 * Triggered when badge is manually awarded. 421 * 422 * @param object $data 423 * @return boolean 424 */ 425 function badges_award_handle_manual_criteria_review(stdClass $data) { 426 $criteria = $data->crit; 427 $userid = $data->userid; 428 $badge = new badge($criteria->badgeid); 429 430 if (!$badge->is_active() || $badge->is_issued($userid)) { 431 return true; 432 } 433 434 if ($criteria->review($userid)) { 435 $criteria->mark_complete($userid); 436 437 if ($badge->criteria[BADGE_CRITERIA_TYPE_OVERALL]->review($userid)) { 438 $badge->criteria[BADGE_CRITERIA_TYPE_OVERALL]->mark_complete($userid); 439 $badge->issue($userid); 440 } 441 } 442 443 return true; 444 } 445 446 /** 447 * Process badge image from form data 448 * 449 * @param badge $badge Badge object 450 * @param string $iconfile Original file 451 */ 452 function badges_process_badge_image(badge $badge, $iconfile) { 453 global $CFG, $USER; 454 require_once($CFG->libdir. '/gdlib.php'); 455 456 if (!empty($CFG->gdversion)) { 457 process_new_icon($badge->get_context(), 'badges', 'badgeimage', $badge->id, $iconfile, true); 458 @unlink($iconfile); 459 460 // Clean up file draft area after badge image has been saved. 461 $context = context_user::instance($USER->id, MUST_EXIST); 462 $fs = get_file_storage(); 463 $fs->delete_area_files($context->id, 'user', 'draft'); 464 } 465 } 466 467 /** 468 * Print badge image. 469 * 470 * @param badge $badge Badge object 471 * @param stdClass $context 472 * @param string $size 473 */ 474 function print_badge_image(badge $badge, stdClass $context, $size = 'small') { 475 $fsize = ($size == 'small') ? 'f2' : 'f1'; 476 477 $imageurl = moodle_url::make_pluginfile_url($context->id, 'badges', 'badgeimage', $badge->id, '/', $fsize, false); 478 // Appending a random parameter to image link to forse browser reload the image. 479 $imageurl->param('refresh', rand(1, 10000)); 480 $attributes = array('src' => $imageurl, 'alt' => s($badge->name), 'class' => 'activatebadge'); 481 482 return html_writer::empty_tag('img', $attributes); 483 } 484 485 /** 486 * Bake issued badge. 487 * 488 * @param string $hash Unique hash of an issued badge. 489 * @param int $badgeid ID of the original badge. 490 * @param int $userid ID of badge recipient (optional). 491 * @param boolean $pathhash Return file pathhash instead of image url (optional). 492 * @return string|url Returns either new file path hash or new file URL 493 */ 494 function badges_bake($hash, $badgeid, $userid = 0, $pathhash = false) { 495 global $CFG, $USER; 496 require_once (__DIR__ . '/../badges/lib/bakerlib.php'); 497 498 $badge = new badge($badgeid); 499 $badge_context = $badge->get_context(); 500 $userid = ($userid) ? $userid : $USER->id; 501 $user_context = context_user::instance($userid); 502 503 $fs = get_file_storage(); 504 if (!$fs->file_exists($user_context->id, 'badges', 'userbadge', $badge->id, '/', $hash . '.png')) { 505 if ($file = $fs->get_file($badge_context->id, 'badges', 'badgeimage', $badge->id, '/', 'f3.png')) { 506 $contents = $file->get_content(); 507 508 $filehandler = new PNG_MetaDataHandler($contents); 509 // For now, the site backpack OB version will be used as default. 510 $obversion = badges_open_badges_backpack_api(); 511 $assertion = new core_badges_assertion($hash, $obversion); 512 $assertionjson = json_encode($assertion->get_badge_assertion()); 513 if ($filehandler->check_chunks("iTXt", "openbadges")) { 514 // Add assertion URL iTXt chunk. 515 $newcontents = $filehandler->add_chunks("iTXt", "openbadges", $assertionjson); 516 $fileinfo = array( 517 'contextid' => $user_context->id, 518 'component' => 'badges', 519 'filearea' => 'userbadge', 520 'itemid' => $badge->id, 521 'filepath' => '/', 522 'filename' => $hash . '.png', 523 ); 524 525 // Create a file with added contents. 526 $newfile = $fs->create_file_from_string($fileinfo, $newcontents); 527 if ($pathhash) { 528 return $newfile->get_pathnamehash(); 529 } 530 } 531 } else { 532 debugging('Error baking badge image!', DEBUG_DEVELOPER); 533 return; 534 } 535 } 536 537 // If file exists and we just need its path hash, return it. 538 if ($pathhash) { 539 $file = $fs->get_file($user_context->id, 'badges', 'userbadge', $badge->id, '/', $hash . '.png'); 540 return $file->get_pathnamehash(); 541 } 542 543 $fileurl = moodle_url::make_pluginfile_url($user_context->id, 'badges', 'userbadge', $badge->id, '/', $hash, true); 544 return $fileurl; 545 } 546 547 /** 548 * Returns external backpack settings and badges from this backpack. 549 * 550 * This function first checks if badges for the user are cached and 551 * tries to retrieve them from the cache. Otherwise, badges are obtained 552 * through curl request to the backpack. 553 * 554 * @param int $userid Backpack user ID. 555 * @param boolean $refresh Refresh badges collection in cache. 556 * @return null|object Returns null is there is no backpack or object with backpack settings. 557 */ 558 function get_backpack_settings($userid, $refresh = false) { 559 global $DB; 560 561 // Try to get badges from cache first. 562 $badgescache = cache::make('core', 'externalbadges'); 563 $out = $badgescache->get($userid); 564 if ($out !== false && !$refresh) { 565 return $out; 566 } 567 // Get badges through curl request to the backpack. 568 $record = $DB->get_record('badge_backpack', array('userid' => $userid)); 569 if ($record) { 570 $sitebackpack = badges_get_site_backpack($record->externalbackpackid); 571 $backpack = new \core_badges\backpack_api($sitebackpack, $record); 572 $out = new stdClass(); 573 $out->backpackid = $sitebackpack->id; 574 575 if ($collections = $DB->get_records('badge_external', array('backpackid' => $record->id))) { 576 $out->totalcollections = count($collections); 577 $out->totalbadges = 0; 578 $out->badges = array(); 579 foreach ($collections as $collection) { 580 $badges = $backpack->get_badges($collection, true); 581 if (!empty($badges)) { 582 $out->badges = array_merge($out->badges, $badges); 583 $out->totalbadges += count($badges); 584 } else { 585 $out->badges = array_merge($out->badges, array()); 586 } 587 } 588 } else { 589 $out->totalbadges = 0; 590 $out->totalcollections = 0; 591 } 592 593 $badgescache->set($userid, $out); 594 return $out; 595 } 596 597 return null; 598 } 599 600 /** 601 * Download all user badges in zip archive. 602 * 603 * @param int $userid ID of badge owner. 604 */ 605 function badges_download($userid) { 606 global $CFG, $DB; 607 $context = context_user::instance($userid); 608 $records = $DB->get_records('badge_issued', array('userid' => $userid)); 609 610 // Get list of files to download. 611 $fs = get_file_storage(); 612 $filelist = array(); 613 foreach ($records as $issued) { 614 $badge = new badge($issued->badgeid); 615 // Need to make image name user-readable and unique using filename safe characters. 616 $name = $badge->name . ' ' . userdate($issued->dateissued, '%d %b %Y') . ' ' . hash('crc32', $badge->id); 617 $name = str_replace(' ', '_', $name); 618 $name = clean_param($name, PARAM_FILE); 619 if ($file = $fs->get_file($context->id, 'badges', 'userbadge', $issued->badgeid, '/', $issued->uniquehash . '.png')) { 620 $filelist[$name . '.png'] = $file; 621 } 622 } 623 624 // Zip files and sent them to a user. 625 $tempzip = tempnam($CFG->tempdir.'/', 'mybadges'); 626 $zipper = new zip_packer(); 627 if ($zipper->archive_to_pathname($filelist, $tempzip)) { 628 send_temp_file($tempzip, 'badges.zip'); 629 } else { 630 debugging("Problems with archiving the files.", DEBUG_DEVELOPER); 631 die; 632 } 633 } 634 635 /** 636 * Checks if badges can be pushed to external backpack. 637 * 638 * @deprecated Since Moodle 3.11. 639 * @return string Code of backpack accessibility status. 640 */ 641 function badges_check_backpack_accessibility() { 642 // This method was used for OBv1.0. It can be deprecated because OBv1.0 support will be removed. 643 // When this method will be removed, badges/ajax.php can be removed too (if it keeps containing only a call to it). 644 debugging('badges_check_backpack_accessibility() can not be used any more, it was only used for OBv1.0', DEBUG_DEVELOPER); 645 646 return 'curl-request-timeout'; 647 } 648 649 /** 650 * Checks if user has external backpack connected. 651 * 652 * @param int $userid ID of a user. 653 * @return bool True|False whether backpack connection exists. 654 */ 655 function badges_user_has_backpack($userid) { 656 global $DB; 657 return $DB->record_exists('badge_backpack', array('userid' => $userid)); 658 } 659 660 /** 661 * Handles what happens to the course badges when a course is deleted. 662 * 663 * @param int $courseid course ID. 664 * @return void. 665 */ 666 function badges_handle_course_deletion($courseid) { 667 global $CFG, $DB; 668 include_once $CFG->libdir . '/filelib.php'; 669 670 $systemcontext = context_system::instance(); 671 $coursecontext = context_course::instance($courseid); 672 $fs = get_file_storage(); 673 674 // Move badges images to the system context. 675 $fs->move_area_files_to_new_context($coursecontext->id, $systemcontext->id, 'badges', 'badgeimage'); 676 677 // Get all course badges. 678 $badges = $DB->get_records('badge', array('type' => BADGE_TYPE_COURSE, 'courseid' => $courseid)); 679 foreach ($badges as $badge) { 680 // Archive badges in this course. 681 $toupdate = new stdClass(); 682 $toupdate->id = $badge->id; 683 $toupdate->type = BADGE_TYPE_SITE; 684 $toupdate->courseid = null; 685 $toupdate->status = BADGE_STATUS_ARCHIVED; 686 $DB->update_record('badge', $toupdate); 687 } 688 } 689 690 /** 691 * Loads JS files required for backpack support. 692 * 693 * @deprecated Since Moodle 3.11. 694 * @return void 695 */ 696 function badges_setup_backpack_js() { 697 // This method was used for OBv1.0. It can be deprecated because OBv1.0 support will be removed. 698 debugging('badges_setup_backpack_js() can not be used any more, it was only used for OBv1.0.', DEBUG_DEVELOPER); 699 } 700 701 /** 702 * No js files are required for backpack support. 703 * This only exists to directly support the custom V1 backpack api. 704 * 705 * @deprecated Since Moodle 3.11. 706 * @param boolean $checksite Call check site function. 707 * @return void 708 */ 709 function badges_local_backpack_js($checksite = false) { 710 // This method was used for OBv1.0. It can be deprecated because OBv1.0 support will be removed. 711 debugging('badges_local_backpack_js() can not be used any more, it was only used for OBv1.0.', DEBUG_DEVELOPER); 712 } 713 714 /** 715 * Create the site backpack with this data. 716 * 717 * @param stdClass $data The new backpack data. 718 * @return boolean 719 */ 720 function badges_create_site_backpack($data) { 721 global $DB; 722 $context = context_system::instance(); 723 require_capability('moodle/badges:manageglobalsettings', $context); 724 725 $max = $DB->get_field_sql('SELECT MAX(sortorder) FROM {badge_external_backpack}'); 726 $data->sortorder = $max + 1; 727 728 return badges_save_external_backpack($data); 729 } 730 731 /** 732 * Update the backpack with this id. 733 * 734 * @param integer $id The backpack to edit 735 * @param stdClass $data The new backpack data. 736 * @return boolean 737 */ 738 function badges_update_site_backpack($id, $data) { 739 global $DB; 740 $context = context_system::instance(); 741 require_capability('moodle/badges:manageglobalsettings', $context); 742 743 if ($backpack = badges_get_site_backpack($id)) { 744 $data->id = $id; 745 return badges_save_external_backpack($data); 746 } 747 return false; 748 } 749 750 751 /** 752 * Delete the backpack with this id. 753 * 754 * @param integer $id The backpack to delete. 755 * @return boolean 756 */ 757 function badges_delete_site_backpack($id) { 758 global $DB; 759 760 $context = context_system::instance(); 761 require_capability('moodle/badges:manageglobalsettings', $context); 762 763 // Only remove site backpack if it's not the default one. 764 $defaultbackpack = badges_get_site_primary_backpack(); 765 if ($defaultbackpack->id != $id && $DB->record_exists('badge_external_backpack', ['id' => $id])) { 766 $transaction = $DB->start_delegated_transaction(); 767 768 // Remove connections for users to this backpack. 769 $sql = "SELECT DISTINCT bb.id 770 FROM {badge_backpack} bb 771 WHERE bb.externalbackpackid = :backpackid"; 772 $params = ['backpackid' => $id]; 773 $userbackpacks = $DB->get_fieldset_sql($sql, $params); 774 if ($userbackpacks) { 775 // Delete user external collections references to this backpack. 776 list($insql, $params) = $DB->get_in_or_equal($userbackpacks); 777 $DB->delete_records_select('badge_external', "backpackid $insql", $params); 778 } 779 $DB->delete_records('badge_backpack', ['externalbackpackid' => $id]); 780 781 // Delete backpack entry. 782 $result = $DB->delete_records('badge_external_backpack', ['id' => $id]); 783 784 $transaction->allow_commit(); 785 786 return $result; 787 } 788 789 return false; 790 } 791 792 /** 793 * Perform the actual create/update of external bakpacks. Any checks on the validity of the id will need to be 794 * performed before it reaches this function. 795 * 796 * @param stdClass $data The backpack data we are updating/inserting 797 * @return int Returns the id of the new/updated record 798 */ 799 function badges_save_external_backpack(stdClass $data) { 800 global $DB; 801 $backpack = new stdClass(); 802 803 $backpack->apiversion = $data->apiversion; 804 $backpack->backpackweburl = $data->backpackweburl; 805 $backpack->backpackapiurl = $data->backpackapiurl; 806 $backpack->oauth2_issuerid = $data->oauth2_issuerid ?? ''; 807 if (isset($data->sortorder)) { 808 $backpack->sortorder = $data->sortorder; 809 } 810 811 if (empty($data->id)) { 812 $backpack->id = $DB->insert_record('badge_external_backpack', $backpack); 813 } else { 814 $backpack->id = $data->id; 815 $DB->update_record('badge_external_backpack', $backpack); 816 } 817 $data->externalbackpackid = $backpack->id; 818 819 unset($data->id); 820 badges_save_backpack_credentials($data); 821 return $data->externalbackpackid; 822 } 823 824 /** 825 * Create a backpack with the provided details. Stores the auth details of the backpack 826 * 827 * @param stdClass $data Backpack specific data. 828 * @return int The id of the external backpack that the credentials correspond to 829 */ 830 function badges_save_backpack_credentials(stdClass $data) { 831 global $DB; 832 833 if (isset($data->backpackemail) && isset($data->password)) { 834 $backpack = new stdClass(); 835 836 $backpack->email = $data->backpackemail; 837 $backpack->password = !empty($data->password) ? $data->password : ''; 838 $backpack->externalbackpackid = $data->externalbackpackid; 839 $backpack->userid = $data->userid ?? 0; 840 $backpack->backpackuid = $data->backpackuid ?? 0; 841 $backpack->autosync = $data->autosync ?? 0; 842 843 if (!empty($data->badgebackpack)) { 844 $backpack->id = $data->badgebackpack; 845 } else if (!empty($data->id)) { 846 $backpack->id = $data->id; 847 } 848 849 if (empty($backpack->id)) { 850 $backpack->id = $DB->insert_record('badge_backpack', $backpack); 851 } else { 852 $DB->update_record('badge_backpack', $backpack); 853 } 854 855 return $backpack->externalbackpackid; 856 } 857 858 return $data->externalbackpackid ?? 0; 859 } 860 861 /** 862 * Is any backpack enabled that supports open badges V1? 863 * @param int|null $backpackid Check the version of the given id OR if null the sitewide backpack 864 * @return boolean 865 */ 866 function badges_open_badges_backpack_api(?int $backpackid = null) { 867 if (!$backpackid) { 868 $backpack = badges_get_site_primary_backpack(); 869 } else { 870 $backpack = badges_get_site_backpack($backpackid); 871 } 872 873 if (empty($backpack->apiversion)) { 874 return OPEN_BADGES_V2; 875 } 876 return $backpack->apiversion; 877 } 878 879 /** 880 * Get a site backpacks by id for a particular user or site (if userid is 0) 881 * 882 * @param int $id The backpack id. 883 * @param int $userid The owner of the backpack, 0 if it's a sitewide backpack else a user's site backpack 884 * @return array(stdClass) 885 */ 886 function badges_get_site_backpack($id, int $userid = 0) { 887 global $DB; 888 889 $sql = "SELECT beb.*, bb.id AS badgebackpack, bb.password, bb.email AS backpackemail 890 FROM {badge_external_backpack} beb 891 LEFT JOIN {badge_backpack} bb ON bb.externalbackpackid = beb.id AND bb.userid=:userid 892 WHERE beb.id=:id"; 893 894 return $DB->get_record_sql($sql, ['id' => $id, 'userid' => $userid]); 895 } 896 897 /** 898 * Get the user backpack for the currently logged in user OR the provided user 899 * 900 * @param int|null $userid The user whose backpack you're requesting for. If null, get the logged in user's backpack 901 * @return mixed The user's backpack or none. 902 * @throws dml_exception 903 */ 904 function badges_get_user_backpack(?int $userid = 0) { 905 global $DB; 906 907 if (!$userid) { 908 global $USER; 909 $userid = $USER->id; 910 } 911 912 $sql = "SELECT beb.*, bb.id AS badgebackpack, bb.password, bb.email AS backpackemail 913 FROM {badge_external_backpack} beb 914 JOIN {badge_backpack} bb ON bb.externalbackpackid = beb.id AND bb.userid=:userid"; 915 916 return $DB->get_record_sql($sql, ['userid' => $userid]); 917 } 918 919 /** 920 * Get the primary backpack for the site 921 * 922 * @return array(stdClass) 923 */ 924 function badges_get_site_primary_backpack() { 925 global $DB; 926 927 $sql = 'SELECT * 928 FROM {badge_external_backpack} 929 WHERE sortorder = (SELECT MIN(sortorder) 930 FROM {badge_external_backpack} b2)'; 931 $firstbackpack = $DB->get_record_sql($sql, null, MUST_EXIST); 932 933 return badges_get_site_backpack($firstbackpack->id); 934 } 935 936 /** 937 * List the backpacks at site level. 938 * 939 * @return array(stdClass) 940 */ 941 function badges_get_site_backpacks() { 942 global $DB; 943 944 $defaultbackpack = badges_get_site_primary_backpack(); 945 $all = $DB->get_records('badge_external_backpack', null, 'sortorder ASC'); 946 foreach ($all as $key => $bp) { 947 if ($bp->id == $defaultbackpack->id) { 948 $all[$key]->sitebackpack = true; 949 } else { 950 $all[$key]->sitebackpack = false; 951 } 952 } 953 954 return $all; 955 } 956 957 /** 958 * Moves the backpack in the list one position up or down. 959 * 960 * @param int $backpackid The backpack identifier to be moved. 961 * @param int $direction The direction (BACKPACK_MOVE_UP/BACKPACK_MOVE_DOWN) where to move the backpack. 962 * 963 * @throws \moodle_exception if attempting to use invalid direction value. 964 */ 965 function badges_change_sortorder_backpacks(int $backpackid, int $direction): void { 966 global $DB; 967 968 if ($direction != BACKPACK_MOVE_UP && $direction != BACKPACK_MOVE_DOWN) { 969 throw new \coding_exception( 970 'Must use a valid backpack API move direction constant (BACKPACK_MOVE_UP or BACKPACK_MOVE_DOWN)'); 971 } 972 973 $backpacks = badges_get_site_backpacks(); 974 $backpacktoupdate = $backpacks[$backpackid]; 975 976 $currentsortorder = $backpacktoupdate->sortorder; 977 $targetsortorder = $currentsortorder + $direction; 978 if ($targetsortorder > 0 && $targetsortorder <= count($backpacks) ) { 979 foreach ($backpacks as $backpack) { 980 if ($backpack->sortorder == $targetsortorder) { 981 $backpack->sortorder = $backpack->sortorder - $direction; 982 $DB->update_record('badge_external_backpack', $backpack); 983 break; 984 } 985 } 986 $backpacktoupdate->sortorder = $targetsortorder; 987 $DB->update_record('badge_external_backpack', $backpacktoupdate); 988 } 989 } 990 991 /** 992 * List the supported badges api versions. 993 * 994 * @return array(version) 995 */ 996 function badges_get_badge_api_versions() { 997 return [ 998 (string)OPEN_BADGES_V1 => get_string('openbadgesv1', 'badges'), 999 (string)OPEN_BADGES_V2 => get_string('openbadgesv2', 'badges'), 1000 (string)OPEN_BADGES_V2P1 => get_string('openbadgesv2p1', 'badges') 1001 ]; 1002 } 1003 1004 /** 1005 * Get the default issuer for a badge from this site. 1006 * 1007 * @return array 1008 */ 1009 function badges_get_default_issuer() { 1010 global $CFG, $SITE; 1011 1012 $sitebackpack = badges_get_site_primary_backpack(); 1013 $issuer = array(); 1014 $issuerurl = new moodle_url('/'); 1015 $issuer['name'] = $CFG->badges_defaultissuername; 1016 if (empty($issuer['name'])) { 1017 $issuer['name'] = $SITE->fullname ? $SITE->fullname : $SITE->shortname; 1018 } 1019 $issuer['url'] = $issuerurl->out(false); 1020 $issuer['email'] = $sitebackpack->backpackemail ?: $CFG->badges_defaultissuercontact; 1021 $issuer['@context'] = OPEN_BADGES_V2_CONTEXT; 1022 $issuerid = new moodle_url('/badges/issuer_json.php'); 1023 $issuer['id'] = $issuerid->out(false); 1024 $issuer['type'] = OPEN_BADGES_V2_TYPE_ISSUER; 1025 return $issuer; 1026 } 1027 1028 /** 1029 * Disconnect from the user backpack by deleting the user preferences. 1030 * 1031 * @param integer $userid The user to diconnect. 1032 * @return boolean 1033 */ 1034 function badges_disconnect_user_backpack($userid) { 1035 global $USER; 1036 1037 // We can only change backpack settings for our own real backpack. 1038 if ($USER->id != $userid || 1039 \core\session\manager::is_loggedinas()) { 1040 1041 return false; 1042 } 1043 1044 unset_user_preference('badges_email_verify_secret'); 1045 unset_user_preference('badges_email_verify_address'); 1046 unset_user_preference('badges_email_verify_backpackid'); 1047 unset_user_preference('badges_email_verify_password'); 1048 1049 return true; 1050 } 1051 1052 /** 1053 * Used to remember which objects we connected with a backpack before. 1054 * 1055 * @param integer $sitebackpackid The site backpack to connect to. 1056 * @param string $type The type of this remote object. 1057 * @param string $internalid The id for this object on the Moodle site. 1058 * @param string $param The param we need to return. Defaults to the externalid. 1059 * @return mixed The id or false if it doesn't exist. 1060 */ 1061 function badges_external_get_mapping($sitebackpackid, $type, $internalid, $param = 'externalid') { 1062 global $DB; 1063 // Return externalid if it exists. 1064 $params = [ 1065 'sitebackpackid' => $sitebackpackid, 1066 'type' => $type, 1067 'internalid' => $internalid 1068 ]; 1069 1070 $record = $DB->get_record('badge_external_identifier', $params, $param, IGNORE_MISSING); 1071 if ($record) { 1072 return $record->$param; 1073 } 1074 return false; 1075 } 1076 1077 /** 1078 * Save the info about which objects we connected with a backpack before. 1079 * 1080 * @param integer $sitebackpackid The site backpack to connect to. 1081 * @param string $type The type of this remote object. 1082 * @param string $internalid The id for this object on the Moodle site. 1083 * @param string $externalid The id of this object on the remote site. 1084 * @return boolean 1085 */ 1086 function badges_external_create_mapping($sitebackpackid, $type, $internalid, $externalid) { 1087 global $DB; 1088 1089 $params = [ 1090 'sitebackpackid' => $sitebackpackid, 1091 'type' => $type, 1092 'internalid' => $internalid, 1093 'externalid' => $externalid 1094 ]; 1095 1096 return $DB->insert_record('badge_external_identifier', $params); 1097 } 1098 1099 /** 1100 * Delete all external mapping information for a backpack. 1101 * 1102 * @param integer $sitebackpackid The site backpack to connect to. 1103 * @return boolean 1104 */ 1105 function badges_external_delete_mappings($sitebackpackid) { 1106 global $DB; 1107 1108 $params = ['sitebackpackid' => $sitebackpackid]; 1109 1110 return $DB->delete_records('badge_external_identifier', $params); 1111 } 1112 1113 /** 1114 * Delete a specific external mapping information for a backpack. 1115 * 1116 * @param integer $sitebackpackid The site backpack to connect to. 1117 * @param string $type The type of this remote object. 1118 * @param string $internalid The id for this object on the Moodle site. 1119 * @return boolean 1120 */ 1121 function badges_external_delete_mapping($sitebackpackid, $type, $internalid) { 1122 global $DB; 1123 1124 $params = [ 1125 'sitebackpackid' => $sitebackpackid, 1126 'type' => $type, 1127 'internalid' => $internalid 1128 ]; 1129 1130 $DB->delete_record('badge_external_identifier', $params); 1131 } 1132 1133 /** 1134 * Create and send a verification email to the email address supplied. 1135 * 1136 * Since we're not sending this email to a user, email_to_user can't be used 1137 * but this function borrows largely the code from that process. 1138 * 1139 * @param string $email the email address to send the verification email to. 1140 * @param int $backpackid the id of the backpack to connect to 1141 * @param string $backpackpassword the user entered password to connect to this backpack 1142 * @return true if the email was sent successfully, false otherwise. 1143 */ 1144 function badges_send_verification_email($email, $backpackid, $backpackpassword) { 1145 global $DB, $USER; 1146 1147 // Store a user secret (badges_email_verify_secret) and the address (badges_email_verify_address) as users prefs. 1148 // The address will be used by edit_backpack_form for display during verification and to facilitate the resending 1149 // of verification emails to said address. 1150 $secret = random_string(15); 1151 set_user_preference('badges_email_verify_secret', $secret); 1152 set_user_preference('badges_email_verify_address', $email); 1153 set_user_preference('badges_email_verify_backpackid', $backpackid); 1154 set_user_preference('badges_email_verify_password', $backpackpassword); 1155 1156 // To, from. 1157 $tempuser = $DB->get_record('user', array('id' => $USER->id), '*', MUST_EXIST); 1158 $tempuser->email = $email; 1159 $noreplyuser = core_user::get_noreply_user(); 1160 1161 // Generate the verification email body. 1162 $verificationurl = '/badges/backpackemailverify.php'; 1163 $verificationurl = new moodle_url($verificationurl); 1164 $verificationpath = $verificationurl->out(false); 1165 1166 $site = get_site(); 1167 $args = new stdClass(); 1168 $args->link = $verificationpath . '?data='. $secret; 1169 $args->sitename = $site->fullname; 1170 $args->admin = generate_email_signoff(); 1171 1172 $messagesubject = get_string('backpackemailverifyemailsubject', 'badges', $site->fullname); 1173 $messagetext = get_string('backpackemailverifyemailbody', 'badges', $args); 1174 $messagehtml = text_to_html($messagetext, false, false, true); 1175 1176 return email_to_user($tempuser, $noreplyuser, $messagesubject, $messagetext, $messagehtml); 1177 } 1178 1179 /** 1180 * Return all the enabled criteria types for this site. 1181 * 1182 * @param boolean $enabled 1183 * @return array 1184 */ 1185 function badges_list_criteria($enabled = true) { 1186 global $CFG; 1187 1188 $types = array( 1189 BADGE_CRITERIA_TYPE_OVERALL => 'overall', 1190 BADGE_CRITERIA_TYPE_ACTIVITY => 'activity', 1191 BADGE_CRITERIA_TYPE_MANUAL => 'manual', 1192 BADGE_CRITERIA_TYPE_SOCIAL => 'social', 1193 BADGE_CRITERIA_TYPE_COURSE => 'course', 1194 BADGE_CRITERIA_TYPE_COURSESET => 'courseset', 1195 BADGE_CRITERIA_TYPE_PROFILE => 'profile', 1196 BADGE_CRITERIA_TYPE_BADGE => 'badge', 1197 BADGE_CRITERIA_TYPE_COHORT => 'cohort', 1198 BADGE_CRITERIA_TYPE_COMPETENCY => 'competency', 1199 ); 1200 if ($enabled) { 1201 foreach ($types as $key => $type) { 1202 $class = 'award_criteria_' . $type; 1203 $file = $CFG->dirroot . '/badges/criteria/' . $class . '.php'; 1204 if (file_exists($file)) { 1205 require_once($file); 1206 1207 if (!$class::is_enabled()) { 1208 unset($types[$key]); 1209 } 1210 } 1211 } 1212 } 1213 return $types; 1214 } 1215 1216 /** 1217 * Check if any badge has records for competencies. 1218 * 1219 * @param array $competencyids Array of competencies ids. 1220 * @return boolean Return true if competencies were found in any badge. 1221 */ 1222 function badge_award_criteria_competency_has_records_for_competencies($competencyids) { 1223 global $DB; 1224 1225 list($insql, $params) = $DB->get_in_or_equal($competencyids, SQL_PARAMS_NAMED); 1226 1227 $sql = "SELECT DISTINCT bc.badgeid 1228 FROM {badge_criteria} bc 1229 JOIN {badge_criteria_param} bcp ON bc.id = bcp.critid 1230 WHERE bc.criteriatype = :criteriatype AND bcp.value $insql"; 1231 $params['criteriatype'] = BADGE_CRITERIA_TYPE_COMPETENCY; 1232 1233 return $DB->record_exists_sql($sql, $params); 1234 } 1235 1236 /** 1237 * Creates single message for all notification and sends it out 1238 * 1239 * @param object $badge A badge which is notified about. 1240 */ 1241 function badge_assemble_notification(stdClass $badge) { 1242 global $DB; 1243 1244 $userfrom = core_user::get_noreply_user(); 1245 $userfrom->maildisplay = true; 1246 1247 if ($msgs = $DB->get_records_select('badge_issued', 'issuernotified IS NULL AND badgeid = ?', array($badge->id))) { 1248 // Get badge creator. 1249 $creator = $DB->get_record('user', array('id' => $badge->creator), '*', MUST_EXIST); 1250 $creatorsubject = get_string('creatorsubject', 'badges', $badge->name); 1251 $creatormessage = ''; 1252 1253 // Put all messages in one digest. 1254 foreach ($msgs as $msg) { 1255 $issuedlink = html_writer::link(new moodle_url('/badges/badge.php', array('hash' => $msg->uniquehash)), $badge->name); 1256 $recipient = $DB->get_record('user', array('id' => $msg->userid), '*', MUST_EXIST); 1257 1258 $a = new stdClass(); 1259 $a->user = fullname($recipient); 1260 $a->link = $issuedlink; 1261 $creatormessage .= get_string('creatorbody', 'badges', $a); 1262 $DB->set_field('badge_issued', 'issuernotified', time(), array('badgeid' => $msg->badgeid, 'userid' => $msg->userid)); 1263 } 1264 1265 // Create a message object. 1266 $eventdata = new \core\message\message(); 1267 $eventdata->courseid = SITEID; 1268 $eventdata->component = 'moodle'; 1269 $eventdata->name = 'badgecreatornotice'; 1270 $eventdata->userfrom = $userfrom; 1271 $eventdata->userto = $creator; 1272 $eventdata->notification = 1; 1273 $eventdata->subject = $creatorsubject; 1274 $eventdata->fullmessage = format_text_email($creatormessage, FORMAT_HTML); 1275 $eventdata->fullmessageformat = FORMAT_PLAIN; 1276 $eventdata->fullmessagehtml = $creatormessage; 1277 $eventdata->smallmessage = $creatorsubject; 1278 1279 message_send($eventdata); 1280 } 1281 } 1282 1283 /** 1284 * Attempt to authenticate with the site backpack credentials and return an error 1285 * if the authentication fails. If external backpacks are not enabled, this will 1286 * not perform any test. 1287 * 1288 * @return string 1289 */ 1290 function badges_verify_site_backpack() { 1291 $defaultbackpack = badges_get_site_primary_backpack(); 1292 return badges_verify_backpack($defaultbackpack->id); 1293 } 1294 1295 /** 1296 * Attempt to authenticate with a backpack credentials and return an error 1297 * if the authentication fails. 1298 * If external backpacks are not enabled or the backpack version is different 1299 * from OBv2, this will not perform any test. 1300 * 1301 * @param int $backpackid Backpack identifier to verify. 1302 * @return string The result of the verification process. 1303 */ 1304 function badges_verify_backpack(int $backpackid) { 1305 global $OUTPUT, $CFG; 1306 1307 if (empty($CFG->badges_allowexternalbackpack)) { 1308 return ''; 1309 } 1310 1311 $backpack = badges_get_site_backpack($backpackid); 1312 if (empty($backpack->apiversion) || ($backpack->apiversion == OPEN_BADGES_V2)) { 1313 $backpackapi = new \core_badges\backpack_api($backpack); 1314 1315 // Clear any cached access tokens in the session. 1316 $backpackapi->clear_system_user_session(); 1317 1318 // Now attempt a login with these credentials. 1319 $result = $backpackapi->authenticate(); 1320 if (empty($result) || !empty($result->error)) { 1321 $warning = $backpackapi->get_authentication_error(); 1322 1323 $params = ['id' => $backpack->id, 'action' => 'edit']; 1324 $backpackurl = (new moodle_url('/badges/backpacks.php', $params))->out(false); 1325 1326 $message = get_string('sitebackpackwarning', 'badges', ['url' => $backpackurl, 'warning' => $warning]); 1327 $icon = $OUTPUT->pix_icon('i/warning', get_string('warning', 'moodle')); 1328 return $OUTPUT->container($icon . $message, 'text-danger'); 1329 } 1330 } 1331 1332 return ''; 1333 } 1334 1335 /** 1336 * Get OAuth2 services for the external backpack. 1337 * 1338 * @return array 1339 * @throws coding_exception 1340 */ 1341 function badges_get_oauth2_service_options() { 1342 global $DB; 1343 1344 $issuers = core\oauth2\api::get_all_issuers(); 1345 $options = ['' => 'None']; 1346 foreach ($issuers as $issuer) { 1347 $options[$issuer->get('id')] = $issuer->get('name'); 1348 } 1349 1350 return $options; 1351 } 1352 1353 /** 1354 * Generate a public badgr URL that conforms to OBv2. This is done because badgr responses do not currently conform to 1355 * the spec. 1356 * 1357 * WARNING: This is an extremely hacky way of implementing this and should be removed once the standards are conformed to. 1358 * 1359 * @param stdClass $backpack The Badgr backpack we are pushing to 1360 * @param string $type The type of object we are dealing with either Issuer, Assertion OR Badge. 1361 * @param string $externalid The externalid as provided by the backpack 1362 * @return string The public URL to access Badgr objects 1363 */ 1364 function badges_generate_badgr_open_url($backpack, $type, $externalid) { 1365 if (badges_open_badges_backpack_api($backpack->id) == OPEN_BADGES_V2) { 1366 $entity = strtolower($type); 1367 if ($type == OPEN_BADGES_V2_TYPE_BADGE) { 1368 $entity = "badge"; 1369 } 1370 $url = new moodle_url($backpack->backpackapiurl); 1371 return "{$url->get_scheme()}://{$url->get_host()}/public/{$entity}s/$externalid"; 1372 1373 } 1374 }
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