SEBSERV-301 implementation

src/main/java/ch/ethz/seb/sebserver/gbl/model/exam/Exam.java

@@ -71,8 +71,6 @@ public final class Exam implements GrantEntity {
     public static final String ADDITIONAL_ATTR_SIGNATURE_KEY_CERT_ALIAS = "SIGNATURE_KEY_CERT_ALIAS";
     /** This attribute name is used to store the per exam generated app-signature-key encryption salt */
     public static final String ADDITIONAL_ATTR_SIGNATURE_KEY_SALT = "SIGNATURE_KEY_SALT";
-    /** This attribute name is used to store the per Moolde(plugin) exam generated alternative BEK */
-    public static final String ADDITIONAL_ATTR_ALTERNATIVE_SEB_BEK = "ALTERNATIVE_SEB_BEK";
 
     public enum ExamStatus {
         UP_COMING,

src/main/java/ch/ethz/seb/sebserver/gbl/model/exam/QuizData.java

@@ -11,6 +11,7 @@ package ch.ethz.seb.sebserver.gbl.model.exam;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.Map;
+import java.util.Objects;
 
 import org.apache.commons.lang3.StringUtils;
 import org.joda.time.DateTime;
@@ -211,6 +212,23 @@ public final class QuizData implements GrantEntity {
         return this.additionalAttributes;
     }
 
+    @Override
+    public int hashCode() {
+        return Objects.hash(this.id, this.lmsSetupId);
+    }
+
+    @Override
+    public boolean equals(final Object obj) {
+        if (this == obj)
+            return true;
+        if (obj == null)
+            return false;
+        if (getClass() != obj.getClass())
+            return false;
+        final QuizData other = (QuizData) obj;
+        return Objects.equals(this.id, other.id) && Objects.equals(this.lmsSetupId, other.lmsSetupId);
+    }
+
     @Override
     public String toString() {
         final StringBuilder builder = new StringBuilder();

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/exam/ExamConfigurationValueService.java

@@ -10,6 +10,9 @@ package ch.ethz.seb.sebserver.webservice.servicelayer.exam;
 
 public interface ExamConfigurationValueService {
 
+    public static final String CONFIG_ATTR_NAME_QUIT_LINK = "quitURL";
+    public static final String CONFIG_ATTR_NAME_QUIT_SECRET = "hashedQuitPassword";
+
     /** Get the actual SEB settings attribute value for the exam configuration mapped as default configuration
      * to the given exam
      *
@@ -18,4 +21,8 @@ public interface ExamConfigurationValueService {
      * @return The current value of the above SEB settings attribute and given exam. */
     String getMappedDefaultConfigAttributeValue(Long examId, String configAttributeName);
 
+    String getQuitSecret(Long examId);
+
+    String getQuitLink(Long examId);
+
 }

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/exam/impl/ExamAdminServiceImpl.java

@@ -276,7 +276,7 @@ public class ExamAdminServiceImpl implements ExamAdminService {
                     this.additionalAttributesDAO.saveAdditionalAttribute(
                             EntityType.EXAM,
                             exam.id,
-                            Exam.ADDITIONAL_ATTR_ALTERNATIVE_SEB_BEK,
+                            SEBRestrictionService.ADDITIONAL_ATTR_ALTERNATIVE_SEB_BEK,
                             moodleBEK).getOrThrow();
                 } catch (final Exception e) {
                     log.error("Failed to create additional moodle SEB BEK attribute: ", e);

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/exam/impl/ExamConfigurationValueServiceImpl.java

@@ -8,17 +8,23 @@
 
 package ch.ethz.seb.sebserver.webservice.servicelayer.exam.impl;
 
+import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
+import org.springframework.context.annotation.Lazy;
 import org.springframework.stereotype.Service;
 
+import ch.ethz.seb.sebserver.gbl.profile.WebServiceProfile;
+import ch.ethz.seb.sebserver.gbl.util.Cryptor;
 import ch.ethz.seb.sebserver.webservice.servicelayer.dao.ConfigurationAttributeDAO;
 import ch.ethz.seb.sebserver.webservice.servicelayer.dao.ConfigurationDAO;
 import ch.ethz.seb.sebserver.webservice.servicelayer.dao.ConfigurationValueDAO;
 import ch.ethz.seb.sebserver.webservice.servicelayer.dao.ExamConfigurationMapDAO;
 import ch.ethz.seb.sebserver.webservice.servicelayer.exam.ExamConfigurationValueService;
 
+@Lazy
 @Service
+@WebServiceProfile
 public class ExamConfigurationValueServiceImpl implements ExamConfigurationValueService {
 
     private static final Logger log = LoggerFactory.getLogger(ExamConfigurationValueServiceImpl.class);
@@ -27,17 +33,20 @@ public class ExamConfigurationValueServiceImpl implements ExamConfigurationValue
     private final ConfigurationDAO configurationDAO;
     private final ConfigurationAttributeDAO configurationAttributeDAO;
     private final ConfigurationValueDAO configurationValueDAO;
+    private final Cryptor cryptor;
 
     public ExamConfigurationValueServiceImpl(
             final ExamConfigurationMapDAO examConfigurationMapDAO,
             final ConfigurationDAO configurationDAO,
             final ConfigurationAttributeDAO configurationAttributeDAO,
-            final ConfigurationValueDAO configurationValueDAO) {
+            final ConfigurationValueDAO configurationValueDAO,
+            final Cryptor cryptor) {
 
         this.examConfigurationMapDAO = examConfigurationMapDAO;
         this.configurationDAO = configurationDAO;
         this.configurationAttributeDAO = configurationAttributeDAO;
         this.configurationValueDAO = configurationValueDAO;
+        this.cryptor = cryptor;
     }
 
     @Override
@@ -66,4 +75,45 @@ public class ExamConfigurationValueServiceImpl implements ExamConfigurationValue
         }
     }
 
+    @Override
+    public String getQuitSecret(final Long examId) {
+        try {
+
+            final String quitSecretEncrypted = getMappedDefaultConfigAttributeValue(
+                    examId,
+                    CONFIG_ATTR_NAME_QUIT_SECRET);
+
+            if (StringUtils.isNotEmpty(quitSecretEncrypted)) {
+                try {
+
+                    return this.cryptor
+                            .decrypt(quitSecretEncrypted)
+                            .getOrThrow()
+                            .toString();
+
+                } catch (final Exception e) {
+                    log.error("Failed to decrypt quitSecret: ", e);
+                }
+            }
+        } catch (final Exception e) {
+            log.error("Failed to get SEB restriction with quit secret: ", e);
+        }
+
+        return null;
+    }
+
+    @Override
+    public String getQuitLink(final Long examId) {
+        try {
+
+            return getMappedDefaultConfigAttributeValue(
+                    examId,
+                    CONFIG_ATTR_NAME_QUIT_LINK);
+
+        } catch (final Exception e) {
+            log.error("Failed to get SEB restriction with quit link: ", e);
+            return null;
+        }
+    }
+
 }

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/CourseAccessAPI.java

@@ -8,8 +8,8 @@
 
 package ch.ethz.seb.sebserver.webservice.servicelayer.lms;
 
-import java.util.ArrayList;
 import java.util.Collection;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
 
@@ -113,10 +113,20 @@ public interface CourseAccessAPI {
      * @return Result referencing to the Chapters model for the given course or to an error when happened. */
     Result<Chapters> getCourseChapters(String courseId);
 
+    /** This is used to buffer fetch results of asynchronous LMS quiz data fetch processes.
+     * An asynchronous LMS quiz data fetch processes will buffer its fetch results within this buffer
+     * during processing and a request can get already buffered results on a none-blocking manner.
+     *
+     * Use it like a Future but with the ability to get already fetched data. */
     static class AsyncQuizFetchBuffer {
-        public List<QuizData> buffer = new ArrayList<>();
+
+        /** The buffer set where already fetched data is stored and can be get */
+        public Set<QuizData> buffer = new HashSet<>();
+        /** Indicates whether the asynchronous fetch is still running or has finished */
         public boolean finished = false;
+        /** Indicates if the fetch is been canceled. Set this to true to cancel the asynchronous process */
         public boolean canceled = false;
+        /** Reference to an error when the asynchronous fetch stopped with an error */
         public Exception error = null;
 
         public void finish() {

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/SEBRestrictionService.java

@@ -18,6 +18,9 @@ public interface SEBRestrictionService {
     String SEB_RESTRICTION_ADDITIONAL_PROPERTY_NAME_PREFIX = "sebRestrictionProp_";
 
     String SEB_RESTRICTION_ADDITIONAL_PROPERTY_CONFIG_KEY = "config_key";
+    /** This attribute name is used to store the per Moolde(plugin) exam generated alternative BEK */
+    String ADDITIONAL_ATTR_ALTERNATIVE_SEB_BEK =
+            SEB_RESTRICTION_ADDITIONAL_PROPERTY_NAME_PREFIX + "ALTERNATIVE_SEB_BEK";
 
     /** Get the LmsAPIService that is used by the SEBRestrictionService */
     LmsAPIService getLmsAPIService();

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/AbstractCachedCourseAccess.java

@@ -98,9 +98,14 @@ public abstract class AbstractCachedCourseAccess {
 
     /** Put all QuizData to short time cache.
      *
-     * @param quizData Collection of QuizData */
-    protected void putToCache(final Collection<QuizData> quizData) {
+     * @param quizData Collection of QuizData
+     * @return the given collection of QuizData */
+    protected final Collection<QuizData> putToCache(final Collection<QuizData> quizData) {
+        if (quizData == null || quizData.isEmpty()) {
+            return quizData;
+        }
         quizData.stream().forEach(q -> this.cache.put(createCacheKey(q.id), q));
+        return quizData;
     }
 
     protected void evict(final String id) {

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/moodle/MockupRestTemplateFactory.java

@@ -0,0 +1,263 @@
+/*
+ * Copyright (c) 2022 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.UUID;
+import java.util.stream.Collectors;
+
+import org.springframework.http.HttpEntity;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.MediaType;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+import org.springframework.web.util.UriComponentsBuilder;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+
+import ch.ethz.seb.sebserver.gbl.api.JSONMapper;
+import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetup.LmsType;
+import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetupTestResult;
+import ch.ethz.seb.sebserver.gbl.util.Result;
+import ch.ethz.seb.sebserver.gbl.util.Utils;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.APITemplateDataSupplier;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.plugin.MoodlePluginCourseAccess;
+
+public class MockupRestTemplateFactory implements MoodleRestTemplateFactory {
+
+    private final APITemplateDataSupplier apiTemplateDataSupplier;
+
+    public MockupRestTemplateFactory(final APITemplateDataSupplier apiTemplateDataSupplier) {
+        this.apiTemplateDataSupplier = apiTemplateDataSupplier;
+    }
+
+    @Override
+    public LmsSetupTestResult test() {
+        return LmsSetupTestResult.ofOkay(LmsType.MOODLE_PLUGIN);
+    }
+
+    @Override
+    public APITemplateDataSupplier getApiTemplateDataSupplier() {
+        return this.apiTemplateDataSupplier;
+    }
+
+    @Override
+    public Set<String> getKnownTokenAccessPaths() {
+        final Set<String> paths = new HashSet<>();
+        paths.add(MoodleAPIRestTemplate.MOODLE_DEFAULT_TOKEN_REQUEST_PATH);
+        return paths;
+    }
+
+    @Override
+    public Result<MoodleAPIRestTemplate> createRestTemplate() {
+        return Result.of(new MockupMoodleRestTemplate(this.apiTemplateDataSupplier.getLmsSetup().lmsApiUrl));
+    }
+
+    @Override
+    public Result<MoodleAPIRestTemplate> createRestTemplate(final String accessTokenPath) {
+        return Result.of(new MockupMoodleRestTemplate(this.apiTemplateDataSupplier.getLmsSetup().lmsApiUrl));
+    }
+
+    public static final class MockupMoodleRestTemplate implements MoodleAPIRestTemplate {
+
+        private final String accessToken = UUID.randomUUID().toString();
+        private final String url;
+
+        public MockupMoodleRestTemplate(final String url) {
+            this.url = url;
+        }
+
+        @Override
+        public String getService() {
+            return "mockup-service";
+        }
+
+        @Override
+        public void setService(final String service) {
+        }
+
+        @Override
+        public CharSequence getAccessToken() {
+            System.out.println("***** getAccessToken: " + this.accessToken);
+            return this.accessToken;
+        }
+
+        @Override
+        public void testAPIConnection(final String... functions) {
+            System.out.println("***** testAPIConnection functions: " + functions);
+        }
+
+        @Override
+        public String callMoodleAPIFunction(final String functionName) {
+            return callMoodleAPIFunction(functionName, null, null);
+        }
+
+        @Override
+        public String callMoodleAPIFunction(
+                final String functionName,
+                final MultiValueMap<String, String> queryAttributes) {
+            return callMoodleAPIFunction(functionName, null, queryAttributes);
+        }
+
+        @Override
+        public String callMoodleAPIFunction(
+                final String functionName,
+                final MultiValueMap<String, String> queryParams,
+                final MultiValueMap<String, String> queryAttributes) {
+
+            final UriComponentsBuilder queryParam = UriComponentsBuilder
+                    .fromHttpUrl(this.url + MOODLE_DEFAULT_REST_API_PATH)
+                    .queryParam(REST_REQUEST_TOKEN_NAME, this.accessToken)
+                    .queryParam(REST_REQUEST_FUNCTION_NAME, functionName)
+                    .queryParam(REST_REQUEST_FORMAT_NAME, "json");
+
+            if (queryParams != null && !queryParams.isEmpty()) {
+                queryParam.queryParams(queryParams);
+            }
+
+            final boolean usePOST = queryAttributes != null && !queryAttributes.isEmpty();
+            HttpEntity<?> functionReqEntity;
+            if (usePOST) {
+                final HttpHeaders headers = new HttpHeaders();
+                headers.set(
+                        HttpHeaders.CONTENT_TYPE,
+                        MediaType.APPLICATION_FORM_URLENCODED_VALUE);
+
+                final String body = Utils.toAppFormUrlEncodedBody(queryAttributes);
+                functionReqEntity = new HttpEntity<>(body, headers);
+
+            } else {
+                functionReqEntity = new HttpEntity<>(new LinkedMultiValueMap<>());
+            }
+
+            System.out.println("***** callMoodleAPIFunction HttpEntity: " + functionReqEntity);
+
+            // TODO return json
+            if (MoodlePluginCourseAccess.COURSES_API_FUNCTION_NAME.equals(functionName)) {
+                return respondCourses(queryAttributes);
+            } else if (MoodlePluginCourseAccess.QUIZZES_BY_COURSES_API_FUNCTION_NAME.equals(functionName)) {
+                return respondQuizzes(queryAttributes);
+            } else if (MoodlePluginCourseAccess.USERS_API_FUNCTION_NAME.equals(functionName)) {
+                return respondUsers(queryAttributes);
+            } else {
+                throw new RuntimeException("Unknown function: " + functionName);
+            }
+        }
+
+        private static final class MockCD {
+            public final String id;
+            public final String shortname;
+            public final String categoryid;
+            public final String fullname;
+            public final String displayname;
+            public final String idnumber;
+            public final Long startdate; // unix-time seconds UTC
+            public final Long enddate; // unix-time seconds UTC
+            public final Long timecreated; // unix-time seconds UTC
+            public final boolean visible;
+
+            public MockCD(final String num) {
+                this.id = num;
+                this.shortname = "c" + num;
+                this.categoryid = "mock";
+                this.fullname = "course" + num;
+                this.displayname = this.fullname;
+                this.idnumber = "i" + num;
+                this.startdate = Long.valueOf(num);
+                this.enddate = null;
+                this.timecreated = Long.valueOf(num);
+                this.visible = true;
+            }
+        }
+
+        private static final class MockQ {
+            public final String id;
+            public final String coursemodule;
+            public final String course;
+            public final String name;
+            public final String intro;
+            public final Long timeopen; // unix-time seconds UTC
+            public final Long timeclose; // unix-time seconds UTC
+
+            public MockQ(final String courseId, final String num) {
+                this.id = num;
+                this.coursemodule = courseId;
+                this.course = courseId;
+                this.name = "quiz " + num;
+                this.intro = this.name;
+                this.timeopen = Long.valueOf(num);
+                this.timeclose = null;
+            }
+        }
+
+        private String respondCourses(final MultiValueMap<String, String> queryAttributes) {
+            try {
+                final List<String> ids = queryAttributes.get(MoodlePluginCourseAccess.CRITERIA_COURSE_IDS);
+                final String from = queryAttributes.getFirst(MoodlePluginCourseAccess.CRITERIA_LIMIT_FROM);
+                System.out.println("************* from: " + from);
+                final List<MockCD> courses;
+                if (ids != null && !ids.isEmpty()) {
+                    courses = ids.stream().map(id -> new MockCD(id)).collect(Collectors.toList());
+                } else if (from != null && Integer.valueOf(from) < 11) {
+                    courses = new ArrayList<>();
+                    final int num = (Integer.valueOf(from) > 0) ? 10 : 1;
+                    for (int i = 0; i < 10; i++) {
+                        courses.add(new MockCD(String.valueOf(num + i)));
+                    }
+                } else {
+                    courses = new ArrayList<>();
+                }
+
+                final Map<String, Object> response = new HashMap<>();
+                response.put("courses", courses);
+                final JSONMapper jsonMapper = new JSONMapper();
+                final String result = jsonMapper.writeValueAsString(response);
+                System.out.println("******** courses response: " + result);
+                return result;
+            } catch (final JsonProcessingException e) {
+                e.printStackTrace();
+                return "";
+            }
+        }
+
+        private String respondQuizzes(final MultiValueMap<String, String> queryAttributes) {
+            try {
+                final List<String> ids = queryAttributes.get(MoodlePluginCourseAccess.CRITERIA_COURSE_IDS);
+                final List<MockQ> quizzes;
+                if (ids != null && !ids.isEmpty()) {
+                    quizzes = ids.stream().map(id -> new MockQ(id, "10" + id)).collect(Collectors.toList());
+                } else {
+                    quizzes = Collections.emptyList();
+                }
+
+                final Map<String, Object> response = new HashMap<>();
+                response.put("quizzes", quizzes);
+                final JSONMapper jsonMapper = new JSONMapper();
+                final String result = jsonMapper.writeValueAsString(response);
+                System.out.println("******** quizzes response: " + result);
+                return result;
+            } catch (final JsonProcessingException e) {
+                e.printStackTrace();
+                return "";
+            }
+        }
+
+        private String respondUsers(final MultiValueMap<String, String> queryAttributes) {
+            // TODO
+            return "";
+        }
+
+    }
+}

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/moodle/MoodlePluginCheck.java

@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2022 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.context.annotation.Lazy;
+import org.springframework.stereotype.Service;
+
+import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetupTestResult;
+import ch.ethz.seb.sebserver.gbl.profile.WebServiceProfile;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.plugin.MoodlePluginCourseAccess;
+
+@Lazy
+@Service
+@WebServiceProfile
+public class MoodlePluginCheck {
+
+    private static final Logger log = LoggerFactory.getLogger(MoodlePluginCheck.class);
+
+    /** Used to check if the moodle SEB Server plugin is available for a given LMSSetup.
+     *
+     * @param lmsSetup The LMS Setup
+     * @return true if the SEB Server plugin is available */
+    public boolean checkPluginAvailable(final MoodleRestTemplateFactory restTemplateFactory) {
+        try {
+
+            log.info("Check Moodle SEB Server Plugin available...");
+
+            final LmsSetupTestResult test = restTemplateFactory.test();
+
+            if (!test.isOk()) {
+                log.warn("Failed to check Moodle SEB Server Plugin because of invalid LMS Setup: ", test);
+                return false;
+            }
+
+            final MoodleAPIRestTemplate restTemplate = restTemplateFactory
+                    .createRestTemplate()
+                    .getOrThrow();
+
+            try {
+                restTemplate.testAPIConnection(
+                        MoodlePluginCourseAccess.COURSES_API_FUNCTION_NAME,
+                        MoodlePluginCourseAccess.QUIZZES_BY_COURSES_API_FUNCTION_NAME,
+                        MoodlePluginCourseAccess.USERS_API_FUNCTION_NAME);
+            } catch (final Exception e) {
+                log.info("Moodle SEB Server Plugin not available: {}", e.getMessage());
+                return false;
+            }
+
+            log.info("Moodle SEB Server Plugin not available for: {}",
+                    restTemplateFactory.getApiTemplateDataSupplier().getLmsSetup());
+
+            return true;
+
+        } catch (final Exception e) {
+            log.error("Failed to check Moodle SEB Server Plugin because of unexpected error: ", e);
+            return false;
+        }
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/moodle/MoodleRestTemplateFactory.java

@@ -1,463 +1,29 @@
-/*
- * Copyright (c) 2020 ETH Zürich, Educational Development and Technology (LET)
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- */
-
-package ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.function.Function;
-import java.util.stream.Collectors;
-
-import org.apache.commons.lang3.StringUtils;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.springframework.http.HttpEntity;
-import org.springframework.http.HttpHeaders;
-import org.springframework.http.HttpMethod;
-import org.springframework.http.HttpStatus;
-import org.springframework.http.MediaType;
-import org.springframework.http.ResponseEntity;
-import org.springframework.http.client.ClientHttpRequestFactory;
-import org.springframework.util.LinkedMultiValueMap;
-import org.springframework.util.MultiValueMap;
-import org.springframework.web.client.RestTemplate;
-import org.springframework.web.util.UriComponentsBuilder;
-
-import com.fasterxml.jackson.annotation.JsonCreator;
-import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
-import com.fasterxml.jackson.annotation.JsonProperty;
-
-import ch.ethz.seb.sebserver.ClientHttpRequestFactoryService;
-import ch.ethz.seb.sebserver.gbl.api.APIMessage;
-import ch.ethz.seb.sebserver.gbl.api.JSONMapper;
-import ch.ethz.seb.sebserver.gbl.client.ClientCredentialService;
-import ch.ethz.seb.sebserver.gbl.client.ClientCredentials;
-import ch.ethz.seb.sebserver.gbl.client.ProxyData;
-import ch.ethz.seb.sebserver.gbl.model.Domain.LMS_SETUP;
-import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetup;
-import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetup.LmsType;
-import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetupTestResult;
-import ch.ethz.seb.sebserver.gbl.util.Result;
-import ch.ethz.seb.sebserver.gbl.util.Utils;
-import ch.ethz.seb.sebserver.webservice.servicelayer.lms.APITemplateDataSupplier;
-
-public class MoodleRestTemplateFactory {
-
-    private static final Logger log = LoggerFactory.getLogger(MoodleRestTemplateFactory.class);
-
-    public final JSONMapper jsonMapper;
-    public final APITemplateDataSupplier apiTemplateDataSupplier;
-    public final ClientHttpRequestFactoryService clientHttpRequestFactoryService;
-    public final ClientCredentialService clientCredentialService;
-    public final Set<String> knownTokenAccessPaths;
-
-    public MoodleRestTemplateFactory(
-            final JSONMapper jsonMapper,
-            final APITemplateDataSupplier apiTemplateDataSupplier,
-            final ClientCredentialService clientCredentialService,
-            final ClientHttpRequestFactoryService clientHttpRequestFactoryService,
-            final String[] alternativeTokenRequestPaths) {
-
-        this.jsonMapper = jsonMapper;
-        this.apiTemplateDataSupplier = apiTemplateDataSupplier;
-        this.clientCredentialService = clientCredentialService;
-        this.clientHttpRequestFactoryService = clientHttpRequestFactoryService;
-
-        final Set<String> paths = new HashSet<>();
-        paths.add(MoodleAPIRestTemplate.MOODLE_DEFAULT_TOKEN_REQUEST_PATH);
-        if (alternativeTokenRequestPaths != null) {
-            paths.addAll(Arrays.asList(alternativeTokenRequestPaths));
-        }
-        this.knownTokenAccessPaths = Utils.immutableSetOf(paths);
-    }
-
-    APITemplateDataSupplier getApiTemplateDataSupplier() {
-        return this.apiTemplateDataSupplier;
-    }
-
-    public LmsSetupTestResult test() {
-
-        final LmsSetup lmsSetup = this.apiTemplateDataSupplier.getLmsSetup();
-        final ClientCredentials credentials = this.apiTemplateDataSupplier.getLmsClientCredentials();
-
-        final List<APIMessage> missingAttrs = new ArrayList<>();
-        if (StringUtils.isBlank(lmsSetup.lmsApiUrl)) {
-            missingAttrs.add(APIMessage.fieldValidationError(
-                    LMS_SETUP.ATTR_LMS_URL,
-                    "lmsSetup:lmsUrl:notNull"));
-        } else {
-            // try to connect to the url
-            if (!Utils.pingHost(lmsSetup.lmsApiUrl)) {
-                missingAttrs.add(APIMessage.fieldValidationError(
-                        LMS_SETUP.ATTR_LMS_URL,
-                        "lmsSetup:lmsUrl:url.invalid"));
-            }
-        }
-
-        if (StringUtils.isBlank(lmsSetup.lmsRestApiToken)) {
-            if (!credentials.hasClientId()) {
-                missingAttrs.add(APIMessage.fieldValidationError(
-                        LMS_SETUP.ATTR_LMS_CLIENTNAME,
-                        "lmsSetup:lmsClientname:notNull"));
-            }
-            if (!credentials.hasSecret()) {
-                missingAttrs.add(APIMessage.fieldValidationError(
-                        LMS_SETUP.ATTR_LMS_CLIENTSECRET,
-                        "lmsSetup:lmsClientsecret:notNull"));
-            }
-        }
-
-        if (!missingAttrs.isEmpty()) {
-            return LmsSetupTestResult.ofMissingAttributes(LmsType.MOODLE, missingAttrs);
-        }
-
-        return LmsSetupTestResult.ofOkay(LmsType.MOODLE);
-    }
-
-    public Result<MoodleAPIRestTemplate> createRestTemplate() {
-
-        final LmsSetup lmsSetup = this.apiTemplateDataSupplier.getLmsSetup();
-
-        return this.knownTokenAccessPaths
-                .stream()
-                .map(this::createRestTemplate)
-                .map(result -> {
-                    if (result.hasError()) {
-                        log.warn("Failed to get access token for LMS: {}({})",
-                                lmsSetup.name,
-                                lmsSetup.id,
-                                result.getError().getMessage());
-                    }
-                    return result;
-                })
-                .filter(Result::hasValue)
-                .findFirst()
-                .orElse(Result.ofRuntimeError(
-                        "Failed to gain any access for LMS " +
-                                lmsSetup.name + "(" + lmsSetup.id +
-                                ") on paths: " + this.knownTokenAccessPaths));
-    }
-
-    public Result<MoodleAPIRestTemplate> createRestTemplate(final String accessTokenPath) {
-
-        final LmsSetup lmsSetup = this.apiTemplateDataSupplier.getLmsSetup();
-
-        return Result.tryCatch(() -> {
-            final ClientCredentials credentials = this.apiTemplateDataSupplier.getLmsClientCredentials();
-            final ProxyData proxyData = this.apiTemplateDataSupplier.getProxyData();
-
-            final CharSequence plainClientId = credentials.clientId;
-            final CharSequence plainClientSecret = this.clientCredentialService
-                    .getPlainClientSecret(credentials)
-                    .getOrThrow();
-
-            final MoodleAPIRestTemplateImpl restTemplate = new MoodleAPIRestTemplateImpl(
-                    this.jsonMapper,
-                    this.apiTemplateDataSupplier,
-                    lmsSetup.lmsApiUrl,
-                    accessTokenPath,
-                    lmsSetup.lmsRestApiToken,
-                    plainClientId,
-                    plainClientSecret);
-
-            final ClientHttpRequestFactory clientHttpRequestFactory = this.clientHttpRequestFactoryService
-                    .getClientHttpRequestFactory(proxyData)
-                    .getOrThrow();
-
-            restTemplate.setRequestFactory(clientHttpRequestFactory);
-            final CharSequence accessToken = restTemplate.getAccessToken();
-
-            if (accessToken == null) {
-                throw new RuntimeException("Failed to get access token for LMS " +
-                        lmsSetup.name + "(" + lmsSetup.id +
-                        ") on path: " + accessTokenPath);
-            }
-
-            return restTemplate;
-        });
-    }
-
-    public static class MoodleAPIRestTemplateImpl extends RestTemplate implements MoodleAPIRestTemplate {
-
-        private static final String REST_API_TEST_FUNCTION = "core_webservice_get_site_info";
-
-        final JSONMapper jsonMapper;
-        final APITemplateDataSupplier apiTemplateDataSupplier;
-
-        private final String serverURL;
-        private final String tokenPath;
-
-        private CharSequence accessToken;
-
-        private final Map<String, String> tokenReqURIVars;
-        private final HttpEntity<?> tokenReqEntity = new HttpEntity<>(new LinkedMultiValueMap<>());
-
-        protected MoodleAPIRestTemplateImpl(
-                final JSONMapper jsonMapper,
-                final APITemplateDataSupplier apiTemplateDataSupplier,
-                final String serverURL,
-                final String tokenPath,
-                final CharSequence accessToken,
-                final CharSequence username,
-                final CharSequence password) {
-
-            this.jsonMapper = jsonMapper;
-            this.apiTemplateDataSupplier = apiTemplateDataSupplier;
-
-            this.serverURL = serverURL;
-            this.tokenPath = tokenPath;
-            this.accessToken = StringUtils.isNotBlank(accessToken) ? accessToken : null;
-
-            this.tokenReqURIVars = new HashMap<>();
-            this.tokenReqURIVars.put(URI_VAR_USER_NAME, String.valueOf(username));
-            this.tokenReqURIVars.put(URI_VAR_PASSWORD, String.valueOf(password));
-            this.tokenReqURIVars.put(URI_VAR_SERVICE, "moodle_mobile_app");
-
-        }
-
-        @Override
-        public String getService() {
-            return this.tokenReqURIVars.get(URI_VAR_SERVICE);
-        }
-
-        @Override
-        public void setService(final String service) {
-            this.tokenReqURIVars.put(URI_VAR_SERVICE, service);
-        }
-
-        @Override
-        public CharSequence getAccessToken() {
-            if (this.accessToken == null) {
-                requestAccessToken();
-            }
-
-            return this.accessToken;
-        }
-
-        @Override
-        public void testAPIConnection(final String... functions) {
-            try {
-                final String apiInfo = this.callMoodleAPIFunction(REST_API_TEST_FUNCTION);
-                final WebserviceInfo webserviceInfo = this.jsonMapper.readValue(
-                        apiInfo,
-                        WebserviceInfo.class);
-
-                if (StringUtils.isBlank(webserviceInfo.username) || StringUtils.isBlank(webserviceInfo.userid)) {
-                    throw new RuntimeException("Invalid WebserviceInfo: " + webserviceInfo);
-                }
-
-                if (functions != null) {
-
-                    final List<String> missingAPIFunctions = Arrays.stream(functions)
-                            .filter(f -> !webserviceInfo.functions.containsKey(f))
-                            .collect(Collectors.toList());
-
-                    if (!missingAPIFunctions.isEmpty()) {
-                        throw new RuntimeException("Missing Moodle Webservice API functions: " + missingAPIFunctions);
-                    }
-                }
-
-            } catch (final RuntimeException re) {
-                throw re;
-            } catch (final Exception e) {
-                throw new RuntimeException("Failed to test Moodle rest API: ", e);
-            }
-        }
-
-        @Override
-        public String callMoodleAPIFunction(final String functionName) {
-            return callMoodleAPIFunction(functionName, null, null);
-        }
-
-        @Override
-        public String callMoodleAPIFunction(
-                final String functionName,
-                final MultiValueMap<String, String> queryAttributes) {
-            return callMoodleAPIFunction(functionName, null, queryAttributes);
-        }
-
-        @Override
-        public String callMoodleAPIFunction(
-                final String functionName,
-                final MultiValueMap<String, String> queryParams,
-                final MultiValueMap<String, String> queryAttributes) {
-
-            getAccessToken();
-
-            final UriComponentsBuilder queryParam = UriComponentsBuilder
-                    .fromHttpUrl(this.serverURL + MOODLE_DEFAULT_REST_API_PATH)
-                    .queryParam(REST_REQUEST_TOKEN_NAME, this.accessToken)
-                    .queryParam(REST_REQUEST_FUNCTION_NAME, functionName)
-                    .queryParam(REST_REQUEST_FORMAT_NAME, "json");
-
-            if (queryParams != null && !queryParams.isEmpty()) {
-                queryParam.queryParams(queryParams);
-            }
-
-            final boolean usePOST = queryAttributes != null && !queryAttributes.isEmpty();
-            HttpEntity<?> functionReqEntity;
-            if (usePOST) {
-                final HttpHeaders headers = new HttpHeaders();
-                headers.set(
-                        HttpHeaders.CONTENT_TYPE,
-                        MediaType.APPLICATION_FORM_URLENCODED_VALUE);
-
-                final String body = Utils.toAppFormUrlEncodedBody(queryAttributes);
-                functionReqEntity = new HttpEntity<>(body, headers);
-
-            } else {
-                functionReqEntity = new HttpEntity<>(new LinkedMultiValueMap<>());
-            }
-
-            final ResponseEntity<String> response = super.exchange(
-                    queryParam.toUriString(),
-                    usePOST ? HttpMethod.POST : HttpMethod.GET,
-                    functionReqEntity,
-                    String.class);
-
-            final LmsSetup lmsSetup = this.apiTemplateDataSupplier.getLmsSetup();
-            if (response.getStatusCode() != HttpStatus.OK) {
-                throw new RuntimeException(
-                        "Failed to call Moodle webservice API function: " + functionName + " lms setup: " +
-                                lmsSetup + " response: " + response.getBody());
-            }
-
-            final String body = response.getBody();
-
-            // NOTE: for some unknown reason, Moodles API error responses come with a 200 OK response HTTP Status
-            //       So this is a special Moodle specific error handling here...
-            if (body.startsWith("{exception") || body.contains("\"exception\":")) {
-                // Reset access token to get new on next call (fix access if token is expired)
-                // TODO find a way to verify token invalidity response from Moodle.
-                //      Unfortunately there is not a lot of Moodle documentation for the API error handling around.
-                this.accessToken = null;
-                throw new RuntimeException(
-                        "Failed to call Moodle webservice API function: " + functionName + " lms setup: " +
-                                lmsSetup + " response: " + body);
-            }
-
-            return body;
-        }
-
-        private void requestAccessToken() {
-
-            final LmsSetup lmsSetup = this.apiTemplateDataSupplier.getLmsSetup();
-            try {
-
-                final ResponseEntity<String> response = super.exchange(
-                        this.serverURL + this.tokenPath,
-                        HttpMethod.GET,
-                        this.tokenReqEntity,
-                        String.class,
-                        this.tokenReqURIVars);
-
-                if (response.getStatusCode() != HttpStatus.OK) {
-                    log.error("Failed to gain access token for LMS (Moodle): lmsSetup: {} response: {} : {}",
-                            lmsSetup,
-                            response.getStatusCode(),
-                            response.getBody());
-                    throw new RuntimeException("Failed to gain access token for LMS (Moodle): lmsSetup: " +
-                            lmsSetup + " response: " + response.getBody());
-                }
-
-                try {
-                    final MoodleToken moodleToken = this.jsonMapper.readValue(
-                            response.getBody(),
-                            MoodleToken.class);
-
-                    if (moodleToken == null || moodleToken.token == null) {
-                        throw new RuntimeException("Access Token request with 200 but no or invalid token body");
-                    } else {
-                        log.info("Successfully get access token from Moodle: {}",
-                                lmsSetup);
-                    }
-
-                    this.accessToken = moodleToken.token;
-                } catch (final Exception e) {
-                    log.error("Failed to gain access token for LMS (Moodle): lmsSetup: {} response: {} : {}",
-                            lmsSetup,
-                            response.getStatusCode(),
-                            response.getBody());
-                    throw new RuntimeException("Failed to gain access token for LMS (Moodle): lmsSetup: " +
-                            lmsSetup + " response: " + response.getBody(), e);
-                }
-
-            } catch (final Exception e) {
-                log.error("Failed to gain access token for LMS (Moodle): lmsSetup: {} :",
-                        lmsSetup,
-                        e);
-                throw new RuntimeException("Failed to gain access token for LMS (Moodle): lmsSetup: " +
-                        lmsSetup + " cause: " + e.getMessage());
-            }
-        }
-
-    }
-
-    @JsonIgnoreProperties(ignoreUnknown = true)
-    private final static class MoodleToken {
-        final String token;
-        @SuppressWarnings("unused")
-        final String privatetoken;
-
-        @JsonCreator
-        protected MoodleToken(
-                @JsonProperty(value = "token") final String token,
-                @JsonProperty(value = "privatetoken", required = false) final String privatetoken) {
-
-            this.token = token;
-            this.privatetoken = privatetoken;
-        }
-
-    }
-
-    @JsonIgnoreProperties(ignoreUnknown = true)
-    private final static class WebserviceInfo {
-        String username;
-        String userid;
-        Map<String, FunctionInfo> functions;
-
-        @JsonCreator
-        protected WebserviceInfo(
-                @JsonProperty(value = "username") final String username,
-                @JsonProperty(value = "userid") final String userid,
-                @JsonProperty(value = "functions") final Collection<FunctionInfo> functions) {
-
-            this.username = username;
-            this.userid = userid;
-            this.functions = (functions != null)
-                    ? functions
-                            .stream()
-                            .collect(Collectors.toMap(fi -> fi.name, Function.identity()))
-                    : Collections.emptyMap();
-        }
-    }
-
-    @JsonIgnoreProperties(ignoreUnknown = true)
-    private final static class FunctionInfo {
-        String name;
-        @SuppressWarnings("unused")
-        String version;
-
-        @JsonCreator
-        protected FunctionInfo(
-                @JsonProperty(value = "name") final String name,
-                @JsonProperty(value = "version") final String version) {
-
-            this.name = name;
-            this.version = version;
-        }
-    }
-
-}
+/*
+ * Copyright (c) 2022 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle;
+
+import java.util.Set;
+
+import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetupTestResult;
+import ch.ethz.seb.sebserver.gbl.util.Result;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.APITemplateDataSupplier;
+
+public interface MoodleRestTemplateFactory {
+
+    LmsSetupTestResult test();
+
+    APITemplateDataSupplier getApiTemplateDataSupplier();
+
+    Set<String> getKnownTokenAccessPaths();
+
+    Result<MoodleAPIRestTemplate> createRestTemplate();
+
+    Result<MoodleAPIRestTemplate> createRestTemplate(final String accessTokenPath);
+
+}

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/moodle/MoodleRestTemplateFactoryImpl.java

@@ -0,0 +1,472 @@
+/*
+ * Copyright (c) 2020 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+
+import org.apache.commons.lang3.StringUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.http.HttpEntity;
+import org.springframework.http.HttpHeaders;
+import org.springframework.http.HttpMethod;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.MediaType;
+import org.springframework.http.ResponseEntity;
+import org.springframework.http.client.ClientHttpRequestFactory;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
+import org.springframework.web.client.RestTemplate;
+import org.springframework.web.util.UriComponentsBuilder;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+import ch.ethz.seb.sebserver.ClientHttpRequestFactoryService;
+import ch.ethz.seb.sebserver.gbl.api.APIMessage;
+import ch.ethz.seb.sebserver.gbl.api.JSONMapper;
+import ch.ethz.seb.sebserver.gbl.client.ClientCredentialService;
+import ch.ethz.seb.sebserver.gbl.client.ClientCredentials;
+import ch.ethz.seb.sebserver.gbl.client.ProxyData;
+import ch.ethz.seb.sebserver.gbl.model.Domain.LMS_SETUP;
+import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetup;
+import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetup.LmsType;
+import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetupTestResult;
+import ch.ethz.seb.sebserver.gbl.util.Result;
+import ch.ethz.seb.sebserver.gbl.util.Utils;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.APITemplateDataSupplier;
+
+public class MoodleRestTemplateFactoryImpl implements MoodleRestTemplateFactory {
+
+    private static final Logger log = LoggerFactory.getLogger(MoodleRestTemplateFactoryImpl.class);
+
+    public final JSONMapper jsonMapper;
+    public final APITemplateDataSupplier apiTemplateDataSupplier;
+    public final ClientHttpRequestFactoryService clientHttpRequestFactoryService;
+    public final ClientCredentialService clientCredentialService;
+    public final Set<String> knownTokenAccessPaths;
+
+    public MoodleRestTemplateFactoryImpl(
+            final JSONMapper jsonMapper,
+            final APITemplateDataSupplier apiTemplateDataSupplier,
+            final ClientCredentialService clientCredentialService,
+            final ClientHttpRequestFactoryService clientHttpRequestFactoryService,
+            final String[] alternativeTokenRequestPaths) {
+
+        this.jsonMapper = jsonMapper;
+        this.apiTemplateDataSupplier = apiTemplateDataSupplier;
+        this.clientCredentialService = clientCredentialService;
+        this.clientHttpRequestFactoryService = clientHttpRequestFactoryService;
+
+        final Set<String> paths = new HashSet<>();
+        paths.add(MoodleAPIRestTemplate.MOODLE_DEFAULT_TOKEN_REQUEST_PATH);
+        if (alternativeTokenRequestPaths != null) {
+            paths.addAll(Arrays.asList(alternativeTokenRequestPaths));
+        }
+        this.knownTokenAccessPaths = Utils.immutableSetOf(paths);
+    }
+
+    @Override
+    public Set<String> getKnownTokenAccessPaths() {
+        return this.knownTokenAccessPaths;
+    }
+
+    @Override
+    public APITemplateDataSupplier getApiTemplateDataSupplier() {
+        return this.apiTemplateDataSupplier;
+    }
+
+    @Override
+    public LmsSetupTestResult test() {
+
+        final LmsSetup lmsSetup = this.apiTemplateDataSupplier.getLmsSetup();
+        final ClientCredentials credentials = this.apiTemplateDataSupplier.getLmsClientCredentials();
+
+        final List<APIMessage> missingAttrs = new ArrayList<>();
+        if (StringUtils.isBlank(lmsSetup.lmsApiUrl)) {
+            missingAttrs.add(APIMessage.fieldValidationError(
+                    LMS_SETUP.ATTR_LMS_URL,
+                    "lmsSetup:lmsUrl:notNull"));
+        } else {
+            // try to connect to the url
+            if (!Utils.pingHost(lmsSetup.lmsApiUrl)) {
+                missingAttrs.add(APIMessage.fieldValidationError(
+                        LMS_SETUP.ATTR_LMS_URL,
+                        "lmsSetup:lmsUrl:url.invalid"));
+            }
+        }
+
+        if (StringUtils.isBlank(lmsSetup.lmsRestApiToken)) {
+            if (!credentials.hasClientId()) {
+                missingAttrs.add(APIMessage.fieldValidationError(
+                        LMS_SETUP.ATTR_LMS_CLIENTNAME,
+                        "lmsSetup:lmsClientname:notNull"));
+            }
+            if (!credentials.hasSecret()) {
+                missingAttrs.add(APIMessage.fieldValidationError(
+                        LMS_SETUP.ATTR_LMS_CLIENTSECRET,
+                        "lmsSetup:lmsClientsecret:notNull"));
+            }
+        }
+
+        if (!missingAttrs.isEmpty()) {
+            return LmsSetupTestResult.ofMissingAttributes(LmsType.MOODLE, missingAttrs);
+        }
+
+        return LmsSetupTestResult.ofOkay(LmsType.MOODLE);
+    }
+
+    @Override
+    public Result<MoodleAPIRestTemplate> createRestTemplate() {
+
+        final LmsSetup lmsSetup = this.apiTemplateDataSupplier.getLmsSetup();
+
+        return this.knownTokenAccessPaths
+                .stream()
+                .map(this::createRestTemplate)
+                .map(result -> {
+                    if (result.hasError()) {
+                        log.warn("Failed to get access token for LMS: {}({})",
+                                lmsSetup.name,
+                                lmsSetup.id,
+                                result.getError().getMessage());
+                    }
+                    return result;
+                })
+                .filter(Result::hasValue)
+                .findFirst()
+                .orElse(Result.ofRuntimeError(
+                        "Failed to gain any access for LMS " +
+                                lmsSetup.name + "(" + lmsSetup.id +
+                                ") on paths: " + this.knownTokenAccessPaths));
+    }
+
+    @Override
+    public Result<MoodleAPIRestTemplate> createRestTemplate(final String accessTokenPath) {
+
+        final LmsSetup lmsSetup = this.apiTemplateDataSupplier.getLmsSetup();
+
+        return Result.tryCatch(() -> {
+            final ClientCredentials credentials = this.apiTemplateDataSupplier.getLmsClientCredentials();
+            final ProxyData proxyData = this.apiTemplateDataSupplier.getProxyData();
+
+            final CharSequence plainClientId = credentials.clientId;
+            final CharSequence plainClientSecret = this.clientCredentialService
+                    .getPlainClientSecret(credentials)
+                    .getOrThrow();
+
+            final MoodleAPIRestTemplateImpl restTemplate = new MoodleAPIRestTemplateImpl(
+                    this.jsonMapper,
+                    this.apiTemplateDataSupplier,
+                    lmsSetup.lmsApiUrl,
+                    accessTokenPath,
+                    lmsSetup.lmsRestApiToken,
+                    plainClientId,
+                    plainClientSecret);
+
+            final ClientHttpRequestFactory clientHttpRequestFactory = this.clientHttpRequestFactoryService
+                    .getClientHttpRequestFactory(proxyData)
+                    .getOrThrow();
+
+            restTemplate.setRequestFactory(clientHttpRequestFactory);
+            final CharSequence accessToken = restTemplate.getAccessToken();
+
+            if (accessToken == null) {
+                throw new RuntimeException("Failed to get access token for LMS " +
+                        lmsSetup.name + "(" + lmsSetup.id +
+                        ") on path: " + accessTokenPath);
+            }
+
+            return restTemplate;
+        });
+    }
+
+    public static class MoodleAPIRestTemplateImpl extends RestTemplate implements MoodleAPIRestTemplate {
+
+        private static final String REST_API_TEST_FUNCTION = "core_webservice_get_site_info";
+
+        final JSONMapper jsonMapper;
+        final APITemplateDataSupplier apiTemplateDataSupplier;
+
+        private final String serverURL;
+        private final String tokenPath;
+
+        private CharSequence accessToken;
+
+        private final Map<String, String> tokenReqURIVars;
+        private final HttpEntity<?> tokenReqEntity = new HttpEntity<>(new LinkedMultiValueMap<>());
+
+        protected MoodleAPIRestTemplateImpl(
+                final JSONMapper jsonMapper,
+                final APITemplateDataSupplier apiTemplateDataSupplier,
+                final String serverURL,
+                final String tokenPath,
+                final CharSequence accessToken,
+                final CharSequence username,
+                final CharSequence password) {
+
+            this.jsonMapper = jsonMapper;
+            this.apiTemplateDataSupplier = apiTemplateDataSupplier;
+
+            this.serverURL = serverURL;
+            this.tokenPath = tokenPath;
+            this.accessToken = StringUtils.isNotBlank(accessToken) ? accessToken : null;
+
+            this.tokenReqURIVars = new HashMap<>();
+            this.tokenReqURIVars.put(URI_VAR_USER_NAME, String.valueOf(username));
+            this.tokenReqURIVars.put(URI_VAR_PASSWORD, String.valueOf(password));
+            this.tokenReqURIVars.put(URI_VAR_SERVICE, "moodle_mobile_app");
+
+        }
+
+        @Override
+        public String getService() {
+            return this.tokenReqURIVars.get(URI_VAR_SERVICE);
+        }
+
+        @Override
+        public void setService(final String service) {
+            this.tokenReqURIVars.put(URI_VAR_SERVICE, service);
+        }
+
+        @Override
+        public CharSequence getAccessToken() {
+            if (this.accessToken == null) {
+                requestAccessToken();
+            }
+
+            return this.accessToken;
+        }
+
+        @Override
+        public void testAPIConnection(final String... functions) {
+            try {
+                final String apiInfo = this.callMoodleAPIFunction(REST_API_TEST_FUNCTION);
+                final WebserviceInfo webserviceInfo = this.jsonMapper.readValue(
+                        apiInfo,
+                        WebserviceInfo.class);
+
+                if (StringUtils.isBlank(webserviceInfo.username) || StringUtils.isBlank(webserviceInfo.userid)) {
+                    throw new RuntimeException("Invalid WebserviceInfo: " + webserviceInfo);
+                }
+
+                if (functions != null) {
+
+                    final List<String> missingAPIFunctions = Arrays.stream(functions)
+                            .filter(f -> !webserviceInfo.functions.containsKey(f))
+                            .collect(Collectors.toList());
+
+                    if (!missingAPIFunctions.isEmpty()) {
+                        throw new RuntimeException("Missing Moodle Webservice API functions: " + missingAPIFunctions);
+                    }
+                }
+
+            } catch (final RuntimeException re) {
+                throw re;
+            } catch (final Exception e) {
+                throw new RuntimeException("Failed to test Moodle rest API: ", e);
+            }
+        }
+
+        @Override
+        public String callMoodleAPIFunction(final String functionName) {
+            return callMoodleAPIFunction(functionName, null, null);
+        }
+
+        @Override
+        public String callMoodleAPIFunction(
+                final String functionName,
+                final MultiValueMap<String, String> queryAttributes) {
+            return callMoodleAPIFunction(functionName, null, queryAttributes);
+        }
+
+        @Override
+        public String callMoodleAPIFunction(
+                final String functionName,
+                final MultiValueMap<String, String> queryParams,
+                final MultiValueMap<String, String> queryAttributes) {
+
+            getAccessToken();
+
+            final UriComponentsBuilder queryParam = UriComponentsBuilder
+                    .fromHttpUrl(this.serverURL + MOODLE_DEFAULT_REST_API_PATH)
+                    .queryParam(REST_REQUEST_TOKEN_NAME, this.accessToken)
+                    .queryParam(REST_REQUEST_FUNCTION_NAME, functionName)
+                    .queryParam(REST_REQUEST_FORMAT_NAME, "json");
+
+            if (queryParams != null && !queryParams.isEmpty()) {
+                queryParam.queryParams(queryParams);
+            }
+
+            final boolean usePOST = queryAttributes != null && !queryAttributes.isEmpty();
+            HttpEntity<?> functionReqEntity;
+            if (usePOST) {
+                final HttpHeaders headers = new HttpHeaders();
+                headers.set(
+                        HttpHeaders.CONTENT_TYPE,
+                        MediaType.APPLICATION_FORM_URLENCODED_VALUE);
+
+                final String body = Utils.toAppFormUrlEncodedBody(queryAttributes);
+                functionReqEntity = new HttpEntity<>(body, headers);
+
+            } else {
+                functionReqEntity = new HttpEntity<>(new LinkedMultiValueMap<>());
+            }
+
+            final ResponseEntity<String> response = super.exchange(
+                    queryParam.toUriString(),
+                    usePOST ? HttpMethod.POST : HttpMethod.GET,
+                    functionReqEntity,
+                    String.class);
+
+            final LmsSetup lmsSetup = this.apiTemplateDataSupplier.getLmsSetup();
+            if (response.getStatusCode() != HttpStatus.OK) {
+                throw new RuntimeException(
+                        "Failed to call Moodle webservice API function: " + functionName + " lms setup: " +
+                                lmsSetup + " response: " + response.getBody());
+            }
+
+            final String body = response.getBody();
+
+            // NOTE: for some unknown reason, Moodles API error responses come with a 200 OK response HTTP Status
+            //       So this is a special Moodle specific error handling here...
+            if (body.startsWith("{exception") || body.contains("\"exception\":")) {
+                // Reset access token to get new on next call (fix access if token is expired)
+                // NOTE: find a way to verify token invalidity response from Moodle.
+                //      Unfortunately there is not a lot of Moodle documentation for the API error handling around.
+                this.accessToken = null;
+                throw new RuntimeException(
+                        "Failed to call Moodle webservice API function: " + functionName + " lms setup: " +
+                                lmsSetup + " response: " + body);
+            }
+
+            return body;
+        }
+
+        private void requestAccessToken() {
+
+            final LmsSetup lmsSetup = this.apiTemplateDataSupplier.getLmsSetup();
+            try {
+
+                final ResponseEntity<String> response = super.exchange(
+                        this.serverURL + this.tokenPath,
+                        HttpMethod.GET,
+                        this.tokenReqEntity,
+                        String.class,
+                        this.tokenReqURIVars);
+
+                if (response.getStatusCode() != HttpStatus.OK) {
+                    log.error("Failed to gain access token for LMS (Moodle): lmsSetup: {} response: {} : {}",
+                            lmsSetup,
+                            response.getStatusCode(),
+                            response.getBody());
+                    throw new RuntimeException("Failed to gain access token for LMS (Moodle): lmsSetup: " +
+                            lmsSetup + " response: " + response.getBody());
+                }
+
+                try {
+                    final MoodleToken moodleToken = this.jsonMapper.readValue(
+                            response.getBody(),
+                            MoodleToken.class);
+
+                    if (moodleToken == null || moodleToken.token == null) {
+                        throw new RuntimeException("Access Token request with 200 but no or invalid token body");
+                    } else {
+                        log.info("Successfully get access token from Moodle: {}",
+                                lmsSetup);
+                    }
+
+                    this.accessToken = moodleToken.token;
+                } catch (final Exception e) {
+                    log.error("Failed to gain access token for LMS (Moodle): lmsSetup: {} response: {} : {}",
+                            lmsSetup,
+                            response.getStatusCode(),
+                            response.getBody());
+                    throw new RuntimeException("Failed to gain access token for LMS (Moodle): lmsSetup: " +
+                            lmsSetup + " response: " + response.getBody(), e);
+                }
+
+            } catch (final Exception e) {
+                log.error("Failed to gain access token for LMS (Moodle): lmsSetup: {} :",
+                        lmsSetup,
+                        e);
+                throw new RuntimeException("Failed to gain access token for LMS (Moodle): lmsSetup: " +
+                        lmsSetup + " cause: " + e.getMessage());
+            }
+        }
+
+    }
+
+    @JsonIgnoreProperties(ignoreUnknown = true)
+    private final static class MoodleToken {
+        final String token;
+        @SuppressWarnings("unused")
+        final String privatetoken;
+
+        @JsonCreator
+        protected MoodleToken(
+                @JsonProperty(value = "token") final String token,
+                @JsonProperty(value = "privatetoken", required = false) final String privatetoken) {
+
+            this.token = token;
+            this.privatetoken = privatetoken;
+        }
+
+    }
+
+    @JsonIgnoreProperties(ignoreUnknown = true)
+    private final static class WebserviceInfo {
+        String username;
+        String userid;
+        Map<String, FunctionInfo> functions;
+
+        @JsonCreator
+        protected WebserviceInfo(
+                @JsonProperty(value = "username") final String username,
+                @JsonProperty(value = "userid") final String userid,
+                @JsonProperty(value = "functions") final Collection<FunctionInfo> functions) {
+
+            this.username = username;
+            this.userid = userid;
+            this.functions = (functions != null)
+                    ? functions
+                            .stream()
+                            .collect(Collectors.toMap(fi -> fi.name, Function.identity()))
+                    : Collections.emptyMap();
+        }
+    }
+
+    @JsonIgnoreProperties(ignoreUnknown = true)
+    private final static class FunctionInfo {
+        String name;
+        @SuppressWarnings("unused")
+        String version;
+
+        @JsonCreator
+        protected FunctionInfo(
+                @JsonProperty(value = "name") final String name,
+                @JsonProperty(value = "version") final String version) {
+
+            this.name = name;
+            this.version = version;
+        }
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/moodle/MoodleUtils.java

@@ -0,0 +1,518 @@
+/*
+ * Copyright (c) 2022 ETH Zürich, Educational Development and Technology (LET)
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+package ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.function.Predicate;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+
+import org.apache.commons.lang3.StringUtils;
+import org.joda.time.DateTime;
+import org.joda.time.DateTimeZone;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import com.fasterxml.jackson.annotation.JsonProperty;
+
+import ch.ethz.seb.sebserver.gbl.Constants;
+import ch.ethz.seb.sebserver.gbl.model.exam.QuizData;
+import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetup;
+import ch.ethz.seb.sebserver.gbl.util.Utils;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleAPIRestTemplate.Warning;
+
+public abstract class MoodleUtils {
+
+    private static final Logger log = LoggerFactory.getLogger(MoodleUtils.class);
+
+    public static final String getInternalQuizId(
+            final String quizId,
+            final String courseId,
+            final String shortname,
+            final String idnumber) {
+
+        return StringUtils.join(
+                new String[] {
+                        quizId,
+                        courseId,
+                        StringUtils.isNotBlank(shortname) ? shortname : Constants.EMPTY_NOTE,
+                        StringUtils.isNotBlank(idnumber) ? idnumber : Constants.EMPTY_NOTE
+                },
+                Constants.COLON);
+    }
+
+    public static final String getQuizId(final String internalQuizId) {
+        if (StringUtils.isBlank(internalQuizId)) {
+            return null;
+        }
+
+        return StringUtils.split(internalQuizId, Constants.COLON)[0];
+    }
+
+    public static final String getCourseId(final String internalQuizId) {
+        if (StringUtils.isBlank(internalQuizId)) {
+            return null;
+        }
+
+        return StringUtils.split(internalQuizId, Constants.COLON)[1];
+    }
+
+    public static final String getShortname(final String internalQuizId) {
+        if (StringUtils.isBlank(internalQuizId)) {
+            return null;
+        }
+
+        final String[] split = StringUtils.split(internalQuizId, Constants.COLON);
+        if (split.length < 3) {
+            return null;
+        }
+
+        final String shortName = split[2];
+        return shortName.equals(Constants.EMPTY_NOTE) ? null : shortName;
+    }
+
+    public static final String getIdnumber(final String internalQuizId) {
+        if (StringUtils.isBlank(internalQuizId)) {
+            return null;
+        }
+        final String[] split = StringUtils.split(internalQuizId, Constants.COLON);
+        if (split.length < 4) {
+            return null;
+        }
+
+        final String idNumber = split[3];
+        return idNumber.equals(Constants.EMPTY_NOTE) ? null : idNumber;
+    }
+
+    public static final void logMoodleWarning(
+            final Collection<Warning> warnings,
+            final String lmsSetupName,
+            final String function) {
+
+        log.warn(
+                "There are warnings from Moodle response: Moodle: {} request: {} warnings: {} warning sample: {}",
+                lmsSetupName,
+                function,
+                warnings.size(),
+                warnings.iterator().next().toString());
+        if (log.isTraceEnabled()) {
+            log.trace("All warnings from Moodle: {}", warnings.toString());
+        }
+    }
+
+    private static final Pattern ACCESS_DENIED_PATTERN_1 =
+            Pattern.compile(Pattern.quote("No access rights"), Pattern.CASE_INSENSITIVE);
+    private static final Pattern ACCESS_DENIED_PATTERN_2 =
+            Pattern.compile(Pattern.quote("access denied"), Pattern.CASE_INSENSITIVE);
+
+    public static final boolean checkAccessDeniedError(final String courseKeyPageJSON) {
+        return ACCESS_DENIED_PATTERN_1
+                .matcher(courseKeyPageJSON)
+                .find() ||
+                ACCESS_DENIED_PATTERN_2
+                        .matcher(courseKeyPageJSON)
+                        .find();
+    }
+
+    public static Predicate<CourseData> getCourseFilter() {
+        final long now = Utils.getSecondsNow();
+        return course -> {
+            if (course.start_date != null
+                    && course.start_date < Utils.toUnixTimeInSeconds(DateTime.now(DateTimeZone.UTC).minusYears(3))) {
+                return false;
+            }
+
+            if (course.end_date == null || course.end_date == 0 || course.end_date > now) {
+                return true;
+            }
+
+            if (log.isDebugEnabled()) {
+                log.info("remove course {} end_time {} now {}",
+                        course.short_name,
+                        course.end_date,
+                        now);
+            }
+            return false;
+        };
+    }
+
+    public static Predicate<CourseQuiz> getQuizFilter() {
+        final long now = Utils.getSecondsNow();
+        return quiz -> {
+            if (quiz.time_close == null || quiz.time_close == 0 || quiz.time_close > now) {
+                return true;
+            }
+
+            if (log.isDebugEnabled()) {
+                log.debug("remove quiz {} end_time {} now {}",
+                        quiz.name,
+                        quiz.time_close,
+                        now);
+            }
+            return false;
+        };
+    }
+
+    public static List<QuizData> quizDataOf(
+            final LmsSetup lmsSetup,
+            final CourseData courseData,
+            final String uriPrefix,
+            final boolean prependShortCourseName) {
+
+        final Map<String, String> additionalAttrs = new HashMap<>();
+        additionalAttrs.put(QuizData.ATTR_ADDITIONAL_CREATION_TIME, String.valueOf(courseData.time_created));
+        additionalAttrs.put(QuizData.ATTR_ADDITIONAL_SHORT_NAME, courseData.short_name);
+        additionalAttrs.put(QuizData.ATTR_ADDITIONAL_ID_NUMBER, courseData.idnumber);
+        additionalAttrs.put(QuizData.ATTR_ADDITIONAL_FULL_NAME, courseData.full_name);
+        additionalAttrs.put(QuizData.ATTR_ADDITIONAL_DISPLAY_NAME, courseData.display_name);
+        additionalAttrs.put(QuizData.ATTR_ADDITIONAL_SUMMARY, courseData.summary);
+
+        final List<QuizData> courseAndQuiz = courseData.quizzes
+                .stream()
+                .map(courseQuizData -> {
+                    final String startURI = uriPrefix + courseQuizData.course_module;
+                    additionalAttrs.put(QuizData.ATTR_ADDITIONAL_TIME_LIMIT, String.valueOf(courseQuizData.time_limit));
+                    return new QuizData(
+                            MoodleUtils.getInternalQuizId(
+                                    courseQuizData.course_module,
+                                    courseData.id,
+                                    courseData.short_name,
+                                    courseData.idnumber),
+                            lmsSetup.getInstitutionId(),
+                            lmsSetup.id,
+                            lmsSetup.getLmsType(),
+                            (prependShortCourseName)
+                                    ? courseData.short_name + " : " + courseQuizData.name
+                                    : courseQuizData.name,
+                            courseQuizData.intro,
+                            (courseQuizData.time_open != null && courseQuizData.time_open > 0)
+                                    ? Utils.toDateTimeUTCUnix(courseQuizData.time_open)
+                                    : Utils.toDateTimeUTCUnix(courseData.start_date),
+                            (courseQuizData.time_close != null && courseQuizData.time_close > 0)
+                                    ? Utils.toDateTimeUTCUnix(courseQuizData.time_close)
+                                    : Utils.toDateTimeUTCUnix(courseData.end_date),
+                            startURI,
+                            additionalAttrs);
+                })
+                .collect(Collectors.toList());
+
+        return courseAndQuiz;
+    }
+
+    public static final void fillSelectedQuizzes(
+            final Set<String> quizIds,
+            final Map<String, CourseData> finalCourseDataRef,
+            final CourseQuiz quiz) {
+        try {
+            final CourseData course = finalCourseDataRef.get(quiz.course);
+            if (course != null) {
+                final String internalQuizId = MoodleUtils.getInternalQuizId(
+                        quiz.course_module,
+                        course.id,
+                        course.short_name,
+                        course.idnumber);
+                if (quizIds.contains(internalQuizId)) {
+                    course.quizzes.add(quiz);
+                }
+            }
+        } catch (final Exception e) {
+            log.error("Failed to verify selected quiz for course: {}", e.getMessage());
+        }
+    }
+
+    // ---- Mapping Classes ---
+
+    /** Maps the Moodle course API course data */
+    @JsonIgnoreProperties(ignoreUnknown = true)
+    public static final class CourseData {
+        public final String id;
+        public final String short_name;
+        public final String idnumber;
+        public final String full_name;
+        public final String display_name;
+        public final String summary;
+        public final Long start_date; // unix-time seconds UTC
+        public final Long end_date; // unix-time seconds UTC
+        public final Long time_created; // unix-time seconds UTC
+        public final String category_id;
+
+        @JsonIgnore
+        public final Collection<CourseQuiz> quizzes = new ArrayList<>();
+
+        @JsonCreator
+        public CourseData(
+                @JsonProperty(value = "id") final String id,
+                @JsonProperty(value = "shortname") final String short_name,
+                @JsonProperty(value = "idnumber") final String idnumber,
+                @JsonProperty(value = "fullname") final String full_name,
+                @JsonProperty(value = "displayname") final String display_name,
+                @JsonProperty(value = "summary") final String summary,
+                @JsonProperty(value = "startdate") final Long start_date,
+                @JsonProperty(value = "enddate") final Long end_date,
+                @JsonProperty(value = "timecreated") final Long time_created,
+                @JsonProperty(value = "categoryid") final String category_id) {
+
+            this.id = id;
+            this.short_name = short_name;
+            this.idnumber = idnumber;
+            this.full_name = full_name;
+            this.display_name = display_name;
+            this.summary = summary;
+            this.start_date = start_date;
+            this.end_date = end_date;
+            this.time_created = time_created;
+            this.category_id = category_id;
+        }
+    }
+
+    @JsonIgnoreProperties(ignoreUnknown = true)
+    public static final class Courses {
+        public final Collection<CourseData> courses;
+        public final Collection<Warning> warnings;
+
+        @JsonCreator
+        public Courses(
+                @JsonProperty(value = "courses") final Collection<CourseData> courses,
+                @JsonProperty(value = "warnings") final Collection<Warning> warnings) {
+            this.courses = courses;
+            this.warnings = warnings;
+        }
+    }
+
+    @JsonIgnoreProperties(ignoreUnknown = true)
+    public static final class CourseQuizData {
+        public final Collection<CourseQuiz> quizzes;
+        public final Collection<Warning> warnings;
+
+        @JsonCreator
+        public CourseQuizData(
+                @JsonProperty(value = "quizzes") final Collection<CourseQuiz> quizzes,
+                @JsonProperty(value = "warnings") final Collection<Warning> warnings) {
+            this.quizzes = quizzes;
+            this.warnings = warnings;
+        }
+    }
+
+    @JsonIgnoreProperties(ignoreUnknown = true)
+    public static final class CourseQuiz {
+        public final String id;
+        public final String course;
+        public final String course_module;
+        public final String name;
+        public final String intro; // HTML
+        public final Long time_open; // unix-time seconds UTC
+        public final Long time_close; // unix-time seconds UTC
+        public final Long time_limit; // unix-time seconds UTC
+
+        @JsonCreator
+        public CourseQuiz(
+                @JsonProperty(value = "id") final String id,
+                @JsonProperty(value = "course") final String course,
+                @JsonProperty(value = "coursemodule") final String course_module,
+                @JsonProperty(value = "name") final String name,
+                @JsonProperty(value = "intro") final String intro,
+                @JsonProperty(value = "timeopen") final Long time_open,
+                @JsonProperty(value = "timeclose") final Long time_close,
+                @JsonProperty(value = "timelimit") final Long time_limit) {
+
+            this.id = id;
+            this.course = course;
+            this.course_module = course_module;
+            this.name = name;
+            this.intro = intro;
+            this.time_open = time_open;
+            this.time_close = time_close;
+            this.time_limit = time_limit;
+        }
+    }
+
+    @JsonIgnoreProperties(ignoreUnknown = true)
+    public static final class MoodleUserDetails {
+        public final String id;
+        public final String username;
+        public final String firstname;
+        public final String lastname;
+        public final String fullname;
+        public final String email;
+        public final String department;
+        public final Long firstaccess;
+        public final Long lastaccess;
+        public final String auth;
+        public final Boolean suspended;
+        public final Boolean confirmed;
+        public final String lang;
+        public final String theme;
+        public final String timezone;
+        public final String description;
+        public final Integer mailformat;
+        public final Integer descriptionformat;
+
+        @JsonCreator
+        public MoodleUserDetails(
+                @JsonProperty(value = "id") final String id,
+                @JsonProperty(value = "username") final String username,
+                @JsonProperty(value = "firstname") final String firstname,
+                @JsonProperty(value = "lastname") final String lastname,
+                @JsonProperty(value = "fullname") final String fullname,
+                @JsonProperty(value = "email") final String email,
+                @JsonProperty(value = "department") final String department,
+                @JsonProperty(value = "firstaccess") final Long firstaccess,
+                @JsonProperty(value = "lastaccess") final Long lastaccess,
+                @JsonProperty(value = "auth") final String auth,
+                @JsonProperty(value = "suspended") final Boolean suspended,
+                @JsonProperty(value = "confirmed") final Boolean confirmed,
+                @JsonProperty(value = "lang") final String lang,
+                @JsonProperty(value = "theme") final String theme,
+                @JsonProperty(value = "timezone") final String timezone,
+                @JsonProperty(value = "description") final String description,
+                @JsonProperty(value = "mailformat") final Integer mailformat,
+                @JsonProperty(value = "descriptionformat") final Integer descriptionformat) {
+
+            this.id = id;
+            this.username = username;
+            this.firstname = firstname;
+            this.lastname = lastname;
+            this.fullname = fullname;
+            this.email = email;
+            this.department = department;
+            this.firstaccess = firstaccess;
+            this.lastaccess = lastaccess;
+            this.auth = auth;
+            this.suspended = suspended;
+            this.confirmed = confirmed;
+            this.lang = lang;
+            this.theme = theme;
+            this.timezone = timezone;
+            this.description = description;
+            this.mailformat = mailformat;
+            this.descriptionformat = descriptionformat;
+        }
+    }
+
+    @JsonIgnoreProperties(ignoreUnknown = true)
+    public static final class MoodlePluginUserDetails {
+        public final String id;
+        public final String fullname;
+        public final String username;
+        public final String firstname;
+        public final String lastname;
+        public final String idnumber;
+        public final String email;
+        public final Map<String, String> customfields;
+
+        @JsonCreator
+        public MoodlePluginUserDetails(
+                final String id,
+                final String username,
+                final String firstname,
+                final String lastname,
+                final String idnumber,
+                final String email,
+                final Map<String, String> customfields) {
+
+            this.id = id;
+            if (firstname != null && lastname != null) {
+                this.fullname = firstname + Constants.SPACE + lastname;
+            } else if (firstname != null) {
+                this.fullname = firstname;
+            } else {
+                this.fullname = lastname;
+            }
+            this.username = username;
+            this.firstname = firstname;
+            this.lastname = lastname;
+            this.idnumber = idnumber;
+            this.email = email;
+            this.customfields = Utils.immutableMapOf(customfields);
+        }
+    }
+
+    @JsonIgnoreProperties(ignoreUnknown = true)
+    public static final class CoursePage {
+        public final Collection<CourseKey> courseKeys;
+        public final Collection<Warning> warnings;
+
+        public CoursePage(
+                @JsonProperty(value = "courses") final Collection<CourseKey> courseKeys,
+                @JsonProperty(value = "warnings") final Collection<Warning> warnings) {
+
+            this.courseKeys = courseKeys;
+            this.warnings = warnings;
+        }
+    }
+
+    @JsonIgnoreProperties(ignoreUnknown = true)
+    public static final class CourseKey {
+        public final String id;
+        public final String short_name;
+        public final String category_name;
+        public final String sort_order;
+
+        @JsonCreator
+        public CourseKey(
+                @JsonProperty(value = "id") final String id,
+                @JsonProperty(value = "shortname") final String short_name,
+                @JsonProperty(value = "categoryname") final String category_name,
+                @JsonProperty(value = "sortorder") final String sort_order) {
+
+            this.id = id;
+            this.short_name = short_name;
+            this.category_name = category_name;
+            this.sort_order = sort_order;
+        }
+
+        @Override
+        public String toString() {
+            final StringBuilder builder = new StringBuilder();
+            builder.append("CourseKey [id=");
+            builder.append(this.id);
+            builder.append(", short_name=");
+            builder.append(this.short_name);
+            builder.append(", category_name=");
+            builder.append(this.category_name);
+            builder.append(", sort_order=");
+            builder.append(this.sort_order);
+            builder.append("]");
+            return builder.toString();
+        }
+    }
+
+    @JsonIgnoreProperties(ignoreUnknown = true)
+    public static final class MoodleQuizRestriction {
+        public final String quiz_id;
+        public final String config_keys;
+        public final String browser_exam_keys;
+        public final String quit_link;
+        public final String quit_secret;
+
+        @JsonCreator
+        public MoodleQuizRestriction(
+                final String quiz_id,
+                final String config_keys,
+                final String browser_exam_keys,
+                final String quit_link,
+                final String quit_secret) {
+
+            this.quiz_id = quiz_id;
+            this.config_keys = config_keys;
+            this.browser_exam_keys = browser_exam_keys;
+            this.quit_link = quit_link;
+            this.quit_secret = quit_secret;
+        }
+    }
+
+}

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/moodle/legacy/MoodleCourseAccess.java

@@ -17,24 +17,18 @@ import java.util.List;
 import java.util.Map;
 import java.util.Set;
 import java.util.function.Function;
-import java.util.function.Predicate;
-import java.util.regex.Pattern;
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
 import org.apache.commons.lang3.BooleanUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.joda.time.DateTime;
-import org.joda.time.DateTimeZone;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.core.env.Environment;
 import org.springframework.util.LinkedMultiValueMap;
 import org.springframework.util.MultiValueMap;
 
-import com.fasterxml.jackson.annotation.JsonCreator;
-import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
-import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.core.JsonParseException;
 import com.fasterxml.jackson.core.type.TypeReference;
 import com.fasterxml.jackson.databind.JsonMappingException;
@@ -56,8 +50,13 @@ import ch.ethz.seb.sebserver.webservice.servicelayer.lms.APITemplateDataSupplier
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.CourseAccessAPI;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.LmsAPIService;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleAPIRestTemplate;
-import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleAPIRestTemplate.Warning;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleRestTemplateFactory;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleUtils;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleUtils.CourseData;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleUtils.CoursePage;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleUtils.CourseQuizData;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleUtils.Courses;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleUtils.MoodleUserDetails;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.legacy.MoodleCourseDataAsyncLoader.CourseDataShort;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.legacy.MoodleCourseDataAsyncLoader.CourseQuizShort;
 
@@ -98,7 +97,7 @@ public class MoodleCourseAccess implements CourseAccessAPI {
     static final String MOODLE_COURSE_API_SEARCH_PAGE_SIZE = "perpage";
 
     private final JSONMapper jsonMapper;
-    private final MoodleRestTemplateFactory moodleRestTemplateFactory;
+    private final MoodleRestTemplateFactory restTemplateFactory;
     private final MoodleCourseDataAsyncLoader moodleCourseDataAsyncLoader;
     private final boolean prependShortCourseName;
     private final CircuitBreaker<String> protectedMoodlePageCall;
@@ -110,13 +109,13 @@ public class MoodleCourseAccess implements CourseAccessAPI {
     public MoodleCourseAccess(
             final JSONMapper jsonMapper,
             final AsyncService asyncService,
-            final MoodleRestTemplateFactory moodleRestTemplateFactory,
+            final MoodleRestTemplateFactory restTemplateFactory,
             final MoodleCourseDataAsyncLoader moodleCourseDataAsyncLoader,
             final Environment environment) {
 
         this.jsonMapper = jsonMapper;
         this.moodleCourseDataAsyncLoader = moodleCourseDataAsyncLoader;
-        this.moodleRestTemplateFactory = moodleRestTemplateFactory;
+        this.restTemplateFactory = restTemplateFactory;
 
         this.prependShortCourseName = BooleanUtils.toBoolean(environment.getProperty(
                 "sebserver.webservice.lms.moodle.prependShortCourseName",
@@ -142,12 +141,12 @@ public class MoodleCourseAccess implements CourseAccessAPI {
     }
 
     APITemplateDataSupplier getApiTemplateDataSupplier() {
-        return this.moodleRestTemplateFactory.apiTemplateDataSupplier;
+        return this.restTemplateFactory.getApiTemplateDataSupplier();
     }
 
     @Override
     public LmsSetupTestResult testCourseAccessAPI() {
-        final LmsSetupTestResult attributesCheck = this.moodleRestTemplateFactory.test();
+        final LmsSetupTestResult attributesCheck = this.restTemplateFactory.test();
         if (!attributesCheck.isOk()) {
             return attributesCheck;
         }
@@ -155,7 +154,7 @@ public class MoodleCourseAccess implements CourseAccessAPI {
         final Result<MoodleAPIRestTemplate> restTemplateRequest = getRestTemplate();
         if (restTemplateRequest.hasError()) {
             final String message = "Failed to gain access token from Moodle Rest API:\n tried token endpoints: " +
-                    this.moodleRestTemplateFactory.knownTokenAccessPaths;
+                    this.restTemplateFactory.getKnownTokenAccessPaths();
             log.error(message + " cause: {}", restTemplateRequest.getError().getMessage());
             return LmsSetupTestResult.ofTokenRequestError(LmsType.MOODLE, message);
         }
@@ -189,12 +188,12 @@ public class MoodleCourseAccess implements CourseAccessAPI {
         try {
             int page = 0;
             final LmsSetup lmsSetup = getApiTemplateDataSupplier().getLmsSetup();
+            final MoodleAPIRestTemplate restTemplate = getRestTemplate().getOrThrow();
             final String urlPrefix = (lmsSetup.lmsApiUrl.endsWith(Constants.URL_PATH_SEPARATOR))
                     ? lmsSetup.lmsApiUrl + MOODLE_QUIZ_START_URL_PATH
                     : lmsSetup.lmsApiUrl + Constants.URL_PATH_SEPARATOR + MOODLE_QUIZ_START_URL_PATH;
 
             while (!asyncQuizFetchBuffer.finished && !asyncQuizFetchBuffer.canceled) {
-                final MoodleAPIRestTemplate restTemplate = getRestTemplate().getOrThrow();
                 // first get courses from Moodle for page
                 final Map<String, CourseData> courseData = new HashMap<>();
                 final Collection<CourseData> coursesPage = getCoursesPage(restTemplate, page, this.pageSize);
@@ -236,15 +235,10 @@ public class MoodleCourseAccess implements CourseAccessAPI {
                 }
 
                 if (courseQuizData.warnings != null && !courseQuizData.warnings.isEmpty()) {
-                    log.warn(
-                            "There are warnings from Moodle response: Moodle: {} request: {} warnings: {} warning sample: {}",
+                    MoodleUtils.logMoodleWarning(
+                            courseQuizData.warnings,
                             lmsSetup.name,
-                            MoodleCourseAccess.MOODLE_QUIZ_API_FUNCTION_NAME,
-                            courseQuizData.warnings.size(),
-                            courseQuizData.warnings.iterator().next().toString());
-                    if (log.isTraceEnabled()) {
-                        log.trace("All warnings from Moodle: {}", courseQuizData.warnings.toString());
-                    }
+                            MoodleCourseAccess.MOODLE_QUIZ_API_FUNCTION_NAME);
                 }
 
                 if (courseQuizData.quizzes == null || courseQuizData.quizzes.isEmpty()) {
@@ -255,7 +249,7 @@ public class MoodleCourseAccess implements CourseAccessAPI {
 
                 courseQuizData.quizzes
                         .stream()
-                        .filter(getQuizFilter())
+                        .filter(MoodleUtils.getQuizFilter())
                         .forEach(quiz -> {
                             final CourseData data = courseData.get(quiz.course);
                             if (data != null) {
@@ -266,10 +260,16 @@ public class MoodleCourseAccess implements CourseAccessAPI {
                 courseData.values().stream()
                         .filter(c -> !c.quizzes.isEmpty())
                         .forEach(c -> asyncQuizFetchBuffer.buffer.addAll(
-                                quizDataOf(lmsSetup, c, urlPrefix).stream()
+                                MoodleUtils.quizDataOf(lmsSetup, c, urlPrefix, this.prependShortCourseName)
+                                        .stream()
                                         .filter(LmsAPIService.quizFilterPredicate(filterMap))
                                         .collect(Collectors.toList())));
 
+                if (asyncQuizFetchBuffer.buffer.size() > this.maxSize) {
+                    log.warn("Maximal moodle quiz fetch size of {} reached. Cancel fetch at this point.", this.maxSize);
+                    asyncQuizFetchBuffer.finish();
+                }
+
                 page++;
             }
 
@@ -298,8 +298,8 @@ public class MoodleCourseAccess implements CourseAccessAPI {
             final Map<String, CourseDataShort> cachedCourseData = this.moodleCourseDataAsyncLoader
                     .getCachedCourseData();
 
-            final String courseId = getCourseId(id);
-            final String quizId = getQuizId(id);
+            final String courseId = MoodleUtils.getCourseId(id);
+            final String quizId = MoodleUtils.getQuizId(id);
             if (cachedCourseData.containsKey(courseId)) {
                 final CourseDataShort courseData = cachedCourseData.get(courseId);
                 final CourseQuizShort quiz = courseData.quizzes
@@ -352,7 +352,7 @@ public class MoodleCourseAccess implements CourseAccessAPI {
                     MOODLE_USER_PROFILE_API_FUNCTION_NAME,
                     queryAttributes);
 
-            if (checkAccessDeniedError(userDetailsJSON)) {
+            if (MoodleUtils.checkAccessDeniedError(userDetailsJSON)) {
                 final LmsSetup lmsSetup = getApiTemplateDataSupplier().getLmsSetup();
                 log.error("Get access denied error from Moodle: {} for API call: {}, response: {}",
                         lmsSetup,
@@ -486,7 +486,7 @@ public class MoodleCourseAccess implements CourseAccessAPI {
             final Map<String, CourseData> courseData = getCoursesForIds(
                     restTemplate,
                     quizIds.stream()
-                            .map(MoodleCourseAccess::getCourseId)
+                            .map(MoodleUtils::getCourseId)
                             .collect(Collectors.toSet()))
                                     .stream()
                                     .collect(Collectors.toMap(cd -> cd.id, Function.identity()));
@@ -518,7 +518,12 @@ public class MoodleCourseAccess implements CourseAccessAPI {
                 return Collections.emptyList();
             }
 
-            logMoodleWarnings(courseQuizData.warnings);
+            if (courseQuizData.warnings != null && !courseQuizData.warnings.isEmpty()) {
+                MoodleUtils.logMoodleWarning(
+                        courseQuizData.warnings,
+                        lmsSetup.name,
+                        MoodleCourseAccess.MOODLE_QUIZ_API_FUNCTION_NAME);
+            }
 
             if (courseQuizData.quizzes == null || courseQuizData.quizzes.isEmpty()) {
                 log.error("No quizzes found for  ids: {} on LMS; {}", quizIds, lmsSetup.name);
@@ -528,7 +533,7 @@ public class MoodleCourseAccess implements CourseAccessAPI {
             final Map<String, CourseData> finalCourseDataRef = courseData;
             courseQuizData.quizzes
                     .stream()
-                    .forEach(quiz -> fillSelectedQuizzes(quizIds, finalCourseDataRef, quiz));
+                    .forEach(quiz -> MoodleUtils.fillSelectedQuizzes(quizIds, finalCourseDataRef, quiz));
 
             final String urlPrefix = (lmsSetup.lmsApiUrl.endsWith(Constants.URL_PATH_SEPARATOR))
                     ? lmsSetup.lmsApiUrl + MOODLE_QUIZ_START_URL_PATH
@@ -537,7 +542,11 @@ public class MoodleCourseAccess implements CourseAccessAPI {
             return courseData.values()
                     .stream()
                     .filter(c -> !c.quizzes.isEmpty())
-                    .flatMap(cd -> quizDataOf(lmsSetup, cd, urlPrefix).stream())
+                    .flatMap(cd -> MoodleUtils.quizDataOf(
+                            lmsSetup,
+                            cd,
+                            urlPrefix,
+                            this.prependShortCourseName).stream())
                     .collect(Collectors.toList());
 
         } catch (final Exception e) {
@@ -546,27 +555,6 @@ public class MoodleCourseAccess implements CourseAccessAPI {
         }
     }
 
-    private void fillSelectedQuizzes(
-            final Set<String> quizIds,
-            final Map<String, CourseData> finalCourseDataRef,
-            final CourseQuiz quiz) {
-        try {
-            final CourseData course = finalCourseDataRef.get(quiz.course);
-            if (course != null) {
-                final String internalQuizId = getInternalQuizId(
-                        quiz.course_module,
-                        course.id,
-                        course.short_name,
-                        course.idnumber);
-                if (quizIds.contains(internalQuizId)) {
-                    course.quizzes.add(quiz);
-                }
-            }
-        } catch (final Exception e) {
-            log.error("Failed to verify selected quiz for course: {}", e.getMessage());
-        }
-    }
-
     private Collection<CourseData> getCoursesForIds(
             final MoodleAPIRestTemplate restTemplate,
             final Set<String> ids) {
@@ -596,7 +584,12 @@ public class MoodleCourseAccess implements CourseAccessAPI {
                 return Collections.emptyList();
             }
 
-            logMoodleWarnings(courses.warnings);
+            if (courses.warnings != null && !courses.warnings.isEmpty()) {
+                MoodleUtils.logMoodleWarning(
+                        courses.warnings,
+                        lmsSetup.name,
+                        MoodleCourseAccess.MOODLE_QUIZ_API_FUNCTION_NAME);
+            }
 
             if (courses.courses == null || courses.courses.isEmpty()) {
                 log.error("No courses found for ids: {} on LMS: {}", ids, lmsSetup.name);
@@ -610,51 +603,6 @@ public class MoodleCourseAccess implements CourseAccessAPI {
         }
     }
 
-    private List<QuizData> quizDataOf(
-            final LmsSetup lmsSetup,
-            final CourseData courseData,
-            final String uriPrefix) {
-
-        final Map<String, String> additionalAttrs = new HashMap<>();
-        additionalAttrs.put(QuizData.ATTR_ADDITIONAL_CREATION_TIME, String.valueOf(courseData.time_created));
-        additionalAttrs.put(QuizData.ATTR_ADDITIONAL_SHORT_NAME, courseData.short_name);
-        additionalAttrs.put(QuizData.ATTR_ADDITIONAL_ID_NUMBER, courseData.idnumber);
-        additionalAttrs.put(QuizData.ATTR_ADDITIONAL_FULL_NAME, courseData.full_name);
-        additionalAttrs.put(QuizData.ATTR_ADDITIONAL_DISPLAY_NAME, courseData.display_name);
-        additionalAttrs.put(QuizData.ATTR_ADDITIONAL_SUMMARY, courseData.summary);
-
-        final List<QuizData> courseAndQuiz = courseData.quizzes
-                .stream()
-                .map(courseQuizData -> {
-                    final String startURI = uriPrefix + courseQuizData.course_module;
-                    additionalAttrs.put(QuizData.ATTR_ADDITIONAL_TIME_LIMIT, String.valueOf(courseQuizData.time_limit));
-                    return new QuizData(
-                            getInternalQuizId(
-                                    courseQuizData.course_module,
-                                    courseData.id,
-                                    courseData.short_name,
-                                    courseData.idnumber),
-                            lmsSetup.getInstitutionId(),
-                            lmsSetup.id,
-                            lmsSetup.getLmsType(),
-                            (this.prependShortCourseName)
-                                    ? courseData.short_name + " : " + courseQuizData.name
-                                    : courseQuizData.name,
-                            courseQuizData.intro,
-                            (courseQuizData.time_open != null && courseQuizData.time_open > 0)
-                                    ? Utils.toDateTimeUTCUnix(courseQuizData.time_open)
-                                    : Utils.toDateTimeUTCUnix(courseData.start_date),
-                            (courseQuizData.time_close != null && courseQuizData.time_close > 0)
-                                    ? Utils.toDateTimeUTCUnix(courseQuizData.time_close)
-                                    : Utils.toDateTimeUTCUnix(courseData.end_date),
-                            startURI,
-                            additionalAttrs);
-                })
-                .collect(Collectors.toList());
-
-        return courseAndQuiz;
-    }
-
     private List<QuizData> quizDataOf(
             final LmsSetup lmsSetup,
             final CourseDataShort courseData,
@@ -682,7 +630,7 @@ public class MoodleCourseAccess implements CourseAccessAPI {
 
         final String startURI = uriPrefix + courseQuizData.course_module;
         return new QuizData(
-                getInternalQuizId(
+                MoodleUtils.getInternalQuizId(
                         courseQuizData.course_module,
                         courseData.id,
                         courseData.short_name,
@@ -706,7 +654,7 @@ public class MoodleCourseAccess implements CourseAccessAPI {
 
     private Result<MoodleAPIRestTemplate> getRestTemplate() {
         if (this.restTemplate == null) {
-            final Result<MoodleAPIRestTemplate> templateRequest = this.moodleRestTemplateFactory
+            final Result<MoodleAPIRestTemplate> templateRequest = this.restTemplateFactory
                     .createRestTemplate();
             if (templateRequest.hasError()) {
                 return templateRequest;
@@ -718,95 +666,6 @@ public class MoodleCourseAccess implements CourseAccessAPI {
         return Result.of(this.restTemplate);
     }
 
-    public static final String getInternalQuizId(
-            final String quizId,
-            final String courseId,
-            final String shortname,
-            final String idnumber) {
-
-        return StringUtils.join(
-                new String[] {
-                        quizId,
-                        courseId,
-                        StringUtils.isNotBlank(shortname) ? shortname : Constants.EMPTY_NOTE,
-                        StringUtils.isNotBlank(idnumber) ? idnumber : Constants.EMPTY_NOTE
-                },
-                Constants.COLON);
-    }
-
-    public static final String getQuizId(final String internalQuizId) {
-        if (StringUtils.isBlank(internalQuizId)) {
-            return null;
-        }
-
-        return StringUtils.split(internalQuizId, Constants.COLON)[0];
-    }
-
-    public static final String getCourseId(final String internalQuizId) {
-        if (StringUtils.isBlank(internalQuizId)) {
-            return null;
-        }
-
-        return StringUtils.split(internalQuizId, Constants.COLON)[1];
-    }
-
-    public static final String getShortname(final String internalQuizId) {
-        if (StringUtils.isBlank(internalQuizId)) {
-            return null;
-        }
-
-        final String[] split = StringUtils.split(internalQuizId, Constants.COLON);
-        if (split.length < 3) {
-            return null;
-        }
-
-        final String shortName = split[2];
-        return shortName.equals(Constants.EMPTY_NOTE) ? null : shortName;
-    }
-
-    public static final String getIdnumber(final String internalQuizId) {
-        if (StringUtils.isBlank(internalQuizId)) {
-            return null;
-        }
-        final String[] split = StringUtils.split(internalQuizId, Constants.COLON);
-        if (split.length < 4) {
-            return null;
-        }
-
-        final String idNumber = split[3];
-        return idNumber.equals(Constants.EMPTY_NOTE) ? null : idNumber;
-    }
-
-    private void logMoodleWarnings(final Collection<Warning> warnings) {
-        if (warnings != null && !warnings.isEmpty()) {
-            if (log.isDebugEnabled()) {
-                final LmsSetup lmsSetup = getApiTemplateDataSupplier().getLmsSetup();
-                log.debug(
-                        "There are warnings from Moodle response: Moodle: {} request: {} warnings: {} warning sample: {}",
-                        lmsSetup,
-                        MoodleCourseAccess.MOODLE_QUIZ_API_FUNCTION_NAME,
-                        warnings.size(),
-                        warnings.iterator().next().toString());
-            } else if (log.isTraceEnabled()) {
-                log.trace("All warnings from Moodle: {}", warnings.toString());
-            }
-        }
-    }
-
-    private static final Pattern ACCESS_DENIED_PATTERN_1 =
-            Pattern.compile(Pattern.quote("No access rights"), Pattern.CASE_INSENSITIVE);
-    private static final Pattern ACCESS_DENIED_PATTERN_2 =
-            Pattern.compile(Pattern.quote("access denied"), Pattern.CASE_INSENSITIVE);
-
-    public static final boolean checkAccessDeniedError(final String courseKeyPageJSON) {
-        return ACCESS_DENIED_PATTERN_1
-                .matcher(courseKeyPageJSON)
-                .find() ||
-                ACCESS_DENIED_PATTERN_2
-                        .matcher(courseKeyPageJSON)
-                        .find();
-    }
-
     private Collection<CourseData> getCoursesPage(
             final MoodleAPIRestTemplate restTemplate,
             final int page,
@@ -866,7 +725,7 @@ public class MoodleCourseAccess implements CourseAccessAPI {
 
             final Collection<CourseData> result = getCoursesForIds(restTemplate, ids)
                     .stream()
-                    .filter(getCourseFilter())
+                    .filter(MoodleUtils.getCourseFilter())
                     .collect(Collectors.toList());
 
             if (log.isDebugEnabled()) {
@@ -882,258 +741,4 @@ public class MoodleCourseAccess implements CourseAccessAPI {
         }
     }
 
-    private Predicate<CourseData> getCourseFilter() {
-        final long now = Utils.getSecondsNow();
-        return course -> {
-            if (course.start_date != null
-                    && course.start_date < Utils.toUnixTimeInSeconds(DateTime.now(DateTimeZone.UTC).minusYears(3))) {
-                return false;
-            }
-
-            if (course.end_date == null || course.end_date == 0 || course.end_date > now) {
-                return true;
-            }
-
-            if (log.isDebugEnabled()) {
-                log.info("remove course {} end_time {} now {}",
-                        course.short_name,
-                        course.end_date,
-                        now);
-            }
-            return false;
-        };
-    }
-
-    private Predicate<CourseQuiz> getQuizFilter() {
-        final long now = Utils.getSecondsNow();
-        return quiz -> {
-            if (quiz.time_close == null || quiz.time_close == 0 || quiz.time_close > now) {
-                return true;
-            }
-
-            if (log.isDebugEnabled()) {
-                log.debug("remove quiz {} end_time {} now {}",
-                        quiz.name,
-                        quiz.time_close,
-                        now);
-            }
-            return false;
-        };
-    }
-
-    // ---- Mapping Classes ---
-
-    /** Maps the Moodle course API course data */
-    @JsonIgnoreProperties(ignoreUnknown = true)
-    private static final class CourseData {
-        final String id;
-        final String short_name;
-        final String idnumber;
-        final String full_name;
-        final String display_name;
-        final String summary;
-        final Long start_date; // unix-time seconds UTC
-        final Long end_date; // unix-time seconds UTC
-        final Long time_created; // unix-time seconds UTC
-        final Collection<CourseQuiz> quizzes = new ArrayList<>();
-
-        @JsonCreator
-        protected CourseData(
-                @JsonProperty(value = "id") final String id,
-                @JsonProperty(value = "shortname") final String short_name,
-                @JsonProperty(value = "idnumber") final String idnumber,
-                @JsonProperty(value = "fullname") final String full_name,
-                @JsonProperty(value = "displayname") final String display_name,
-                @JsonProperty(value = "summary") final String summary,
-                @JsonProperty(value = "startdate") final Long start_date,
-                @JsonProperty(value = "enddate") final Long end_date,
-                @JsonProperty(value = "timecreated") final Long time_created) {
-
-            this.id = id;
-            this.short_name = short_name;
-            this.idnumber = idnumber;
-            this.full_name = full_name;
-            this.display_name = display_name;
-            this.summary = summary;
-            this.start_date = start_date;
-            this.end_date = end_date;
-            this.time_created = time_created;
-        }
-    }
-
-    @JsonIgnoreProperties(ignoreUnknown = true)
-    private static final class Courses {
-        final Collection<CourseData> courses;
-        final Collection<Warning> warnings;
-
-        @JsonCreator
-        protected Courses(
-                @JsonProperty(value = "courses") final Collection<CourseData> courses,
-                @JsonProperty(value = "warnings") final Collection<Warning> warnings) {
-            this.courses = courses;
-            this.warnings = warnings;
-        }
-    }
-
-    @JsonIgnoreProperties(ignoreUnknown = true)
-    private static final class CourseQuizData {
-        final Collection<CourseQuiz> quizzes;
-        final Collection<Warning> warnings;
-
-        @JsonCreator
-        protected CourseQuizData(
-                @JsonProperty(value = "quizzes") final Collection<CourseQuiz> quizzes,
-                @JsonProperty(value = "warnings") final Collection<Warning> warnings) {
-            this.quizzes = quizzes;
-            this.warnings = warnings;
-        }
-    }
-
-    @JsonIgnoreProperties(ignoreUnknown = true)
-    static final class CourseQuiz {
-        final String id;
-        final String course;
-        final String course_module;
-        final String name;
-        final String intro; // HTML
-        final Long time_open; // unix-time seconds UTC
-        final Long time_close; // unix-time seconds UTC
-        final Long time_limit; // unix-time seconds UTC
-
-        @JsonCreator
-        protected CourseQuiz(
-                @JsonProperty(value = "id") final String id,
-                @JsonProperty(value = "course") final String course,
-                @JsonProperty(value = "coursemodule") final String course_module,
-                @JsonProperty(value = "name") final String name,
-                @JsonProperty(value = "intro") final String intro,
-                @JsonProperty(value = "timeopen") final Long time_open,
-                @JsonProperty(value = "timeclose") final Long time_close,
-                @JsonProperty(value = "timelimit") final Long time_limit) {
-
-            this.id = id;
-            this.course = course;
-            this.course_module = course_module;
-            this.name = name;
-            this.intro = intro;
-            this.time_open = time_open;
-            this.time_close = time_close;
-            this.time_limit = time_limit;
-        }
-    }
-
-    @JsonIgnoreProperties(ignoreUnknown = true)
-    static final class MoodleUserDetails {
-        final String id;
-        final String username;
-        final String firstname;
-        final String lastname;
-        final String fullname;
-        final String email;
-        final String department;
-        final Long firstaccess;
-        final Long lastaccess;
-        final String auth;
-        final Boolean suspended;
-        final Boolean confirmed;
-        final String lang;
-        final String theme;
-        final String timezone;
-        final String description;
-        final Integer mailformat;
-        final Integer descriptionformat;
-
-        @JsonCreator
-        protected MoodleUserDetails(
-                @JsonProperty(value = "id") final String id,
-                @JsonProperty(value = "username") final String username,
-                @JsonProperty(value = "firstname") final String firstname,
-                @JsonProperty(value = "lastname") final String lastname,
-                @JsonProperty(value = "fullname") final String fullname,
-                @JsonProperty(value = "email") final String email,
-                @JsonProperty(value = "department") final String department,
-                @JsonProperty(value = "firstaccess") final Long firstaccess,
-                @JsonProperty(value = "lastaccess") final Long lastaccess,
-                @JsonProperty(value = "auth") final String auth,
-                @JsonProperty(value = "suspended") final Boolean suspended,
-                @JsonProperty(value = "confirmed") final Boolean confirmed,
-                @JsonProperty(value = "lang") final String lang,
-                @JsonProperty(value = "theme") final String theme,
-                @JsonProperty(value = "timezone") final String timezone,
-                @JsonProperty(value = "description") final String description,
-                @JsonProperty(value = "mailformat") final Integer mailformat,
-                @JsonProperty(value = "descriptionformat") final Integer descriptionformat) {
-
-            this.id = id;
-            this.username = username;
-            this.firstname = firstname;
-            this.lastname = lastname;
-            this.fullname = fullname;
-            this.email = email;
-            this.department = department;
-            this.firstaccess = firstaccess;
-            this.lastaccess = lastaccess;
-            this.auth = auth;
-            this.suspended = suspended;
-            this.confirmed = confirmed;
-            this.lang = lang;
-            this.theme = theme;
-            this.timezone = timezone;
-            this.description = description;
-            this.mailformat = mailformat;
-            this.descriptionformat = descriptionformat;
-        }
-    }
-
-    @JsonIgnoreProperties(ignoreUnknown = true)
-    static final class CoursePage {
-        final Collection<CourseKey> courseKeys;
-        final Collection<Warning> warnings;
-
-        public CoursePage(
-                @JsonProperty(value = "courses") final Collection<CourseKey> courseKeys,
-                @JsonProperty(value = "warnings") final Collection<Warning> warnings) {
-
-            this.courseKeys = courseKeys;
-            this.warnings = warnings;
-        }
-    }
-
-    @JsonIgnoreProperties(ignoreUnknown = true)
-    static final class CourseKey {
-        final String id;
-        final String short_name;
-        final String category_name;
-        final String sort_order;
-
-        @JsonCreator
-        protected CourseKey(
-                @JsonProperty(value = "id") final String id,
-                @JsonProperty(value = "shortname") final String short_name,
-                @JsonProperty(value = "categoryname") final String category_name,
-                @JsonProperty(value = "sortorder") final String sort_order) {
-
-            this.id = id;
-            this.short_name = short_name;
-            this.category_name = category_name;
-            this.sort_order = sort_order;
-        }
-
-        @Override
-        public String toString() {
-            final StringBuilder builder = new StringBuilder();
-            builder.append("CourseKey [id=");
-            builder.append(this.id);
-            builder.append(", short_name=");
-            builder.append(this.short_name);
-            builder.append(", category_name=");
-            builder.append(this.category_name);
-            builder.append(", sort_order=");
-            builder.append(this.sort_order);
-            builder.append("]");
-            return builder.toString();
-        }
-
-    }
-
 }

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/moodle/legacy/MoodleCourseDataAsyncLoader.java

@@ -49,7 +49,7 @@ import ch.ethz.seb.sebserver.gbl.profile.WebServiceProfile;
 import ch.ethz.seb.sebserver.gbl.util.Utils;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleAPIRestTemplate;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleAPIRestTemplate.Warning;
-import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.legacy.MoodleCourseAccess.CoursePage;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleUtils.CoursePage;
 
 @Lazy
 @Component

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/moodle/legacy/MoodleCourseRestriction.java

@@ -8,408 +8,34 @@
 
 package ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.legacy;
 
-import java.util.ArrayList;
-
-import org.apache.commons.lang3.StringUtils;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-import org.springframework.util.LinkedMultiValueMap;
-import org.springframework.util.MultiValueMap;
-
-import com.fasterxml.jackson.annotation.JsonCreator;
-import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
-import com.fasterxml.jackson.annotation.JsonProperty;
-import com.fasterxml.jackson.core.type.TypeReference;
-
-import ch.ethz.seb.sebserver.gbl.api.JSONMapper;
 import ch.ethz.seb.sebserver.gbl.model.exam.Exam;
-import ch.ethz.seb.sebserver.gbl.model.exam.MoodleSEBRestriction;
 import ch.ethz.seb.sebserver.gbl.model.exam.SEBRestriction;
 import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetup.LmsType;
 import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetupTestResult;
 import ch.ethz.seb.sebserver.gbl.util.Result;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.SEBRestrictionAPI;
-import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.NoSEBRestrictionException;
-import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleAPIRestTemplate;
-import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleRestTemplateFactory;
 
-/** GET:
- * http://yourmoodle.org/webservice/rest/server.php?wstoken={token}&moodlewsrestformat=json&wsfunction=seb_restriction&courseId=123
- *
- * Response (JSON):
- *
- * <pre>
- * {
- *   "quizId": "456",
- *   "configKeys": [
- *       "key1",
- *       "key2",
- *       "key3"
- *   ],
- *   "browserKeys": [
- *       "bkey1",
- *       "bkey2",
- *       "bkey3"
- *  ]
- * }
- * </pre>
- *
- * Set keys:
- * POST:
- * http://yourmoodle.org/webservice/rest/server.php?wstoken={token}&moodlewsrestformat=json&wsfunction=seb_restriction_update&courseId=123&configKey[0]=key1&configKey[1]=key2&browserKey[0]=bkey1&browserKey[1]=bkey2
- *
- * Delete all key (and remove restrictions):
- * POST:
- * http://yourmoodle.org/webservice/rest/server.php?wstoken={token}&moodlewsrestformat=json&wsfunction=seb_restriction_delete&courseId=123 */
+/** Dummy Implementation */
 public class MoodleCourseRestriction implements SEBRestrictionAPI {
 
-    private static final Logger log = LoggerFactory.getLogger(MoodleCourseRestriction.class);
-
-    private static final String MOODLE_DEFAULT_COURSE_RESTRICTION_WS_FUNCTION = "seb_restriction";
-    private static final String MOODLE_DEFAULT_COURSE_RESTRICTION_WS_FUNCTION_CREATE = "seb_restriction_create";
-    private static final String MOODLE_DEFAULT_COURSE_RESTRICTION_WS_FUNCTION_UPDATE = "seb_restriction_update";
-    private static final String MOODLE_DEFAULT_COURSE_RESTRICTION_WS_FUNCTION_DELETE = "seb_restriction_delete";
-    private static final String MOODLE_DEFAULT_COURSE_RESTRICTION_SHORT_NAME = "shortname";
-    private static final String MOODLE_DEFAULT_COURSE_RESTRICTION_ID_NUMBER = "idnumber";
-    private static final String MOODLE_DEFAULT_COURSE_RESTRICTION_QUIZ_ID = "quizId";
-    private static final String MOODLE_DEFAULT_COURSE_RESTRICTION_CONFIG_KEY = "configKey";
-    private static final String MOODLE_DEFAULT_COURSE_RESTRICTION_BROWSER_KEY = "browserKey";
-
-    private final JSONMapper jsonMapper;
-    private final MoodleRestTemplateFactory moodleRestTemplateFactory;
-
-    private MoodleAPIRestTemplate restTemplate;
-
-    public MoodleCourseRestriction(
-            final JSONMapper jsonMapper,
-            final MoodleRestTemplateFactory moodleRestTemplateFactory) {
-
-        this.jsonMapper = jsonMapper;
-        this.moodleRestTemplateFactory = moodleRestTemplateFactory;
-    }
-
     @Override
     public LmsSetupTestResult testCourseRestrictionAPI() {
-        // try to call the SEB Restrictions API
-        try {
-
-            final MoodleAPIRestTemplate template = getRestTemplate()
-                    .getOrThrow();
-
-            final String jsonResponse = template.callMoodleAPIFunction(
-                    MOODLE_DEFAULT_COURSE_RESTRICTION_WS_FUNCTION,
-                    new LinkedMultiValueMap<>(),
-                    null);
-
-            final Error checkError = this.checkError(jsonResponse);
-            if (checkError != null) {
-                return LmsSetupTestResult.ofQuizRestrictionAPIError(LmsType.MOODLE, checkError.exception);
-            }
-
-        } catch (final Exception e) {
-            log.debug("Moodle SEB restriction API not available: ", e);
-            return LmsSetupTestResult.ofQuizRestrictionAPIError(LmsType.MOODLE, e.getMessage());
-        }
-        return LmsSetupTestResult.ofOkay(LmsType.MOODLE);
+        return LmsSetupTestResult.ofQuizAccessAPIError(LmsType.MOODLE, "SEB restriction not supported");
     }
 
     @Override
     public Result<SEBRestriction> getSEBClientRestriction(final Exam exam) {
-        return Result.tryCatch(() -> {
-            return getSEBRestriction(
-                    MoodleCourseAccess.getQuizId(exam.externalId),
-                    MoodleCourseAccess.getShortname(exam.externalId),
-                    MoodleCourseAccess.getIdnumber(exam.externalId))
-                            .map(restriction -> SEBRestriction.from(exam.id, restriction))
-                            .getOrThrow();
-        });
+        return Result.ofError(new UnsupportedOperationException("SEB restriction not supported"));
     }
 
     @Override
-    public Result<SEBRestriction> applySEBClientRestriction(
-            final Exam exam,
-            final SEBRestriction sebRestrictionData) {
-
-        return this.updateSEBRestriction(
-                exam.externalId,
-                MoodleSEBRestriction.from(sebRestrictionData))
-                .map(result -> sebRestrictionData);
+    public Result<SEBRestriction> applySEBClientRestriction(final Exam exam, final SEBRestriction sebRestrictionData) {
+        return Result.ofError(new UnsupportedOperationException("SEB restriction not supported"));
     }
 
     @Override
     public Result<Exam> releaseSEBClientRestriction(final Exam exam) {
-        return this.deleteSEBRestriction(exam.externalId)
-                .map(result -> exam);
-    }
-
-    Result<MoodleSEBRestriction> getSEBRestriction(
-            final String quizId,
-            final String shortname,
-            final String idnumber) {
-
-        if (log.isDebugEnabled()) {
-            log.debug("GET SEB Client restriction on course: {} quiz: {}", shortname, quizId);
-        }
-
-        return Result.tryCatch(() -> {
-
-            final MoodleAPIRestTemplate template = getRestTemplate()
-                    .getOrThrow();
-
-            final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<>();
-            queryParams.add(MOODLE_DEFAULT_COURSE_RESTRICTION_QUIZ_ID, quizId);
-            if (StringUtils.isNotBlank(shortname)) {
-                queryParams.add(MOODLE_DEFAULT_COURSE_RESTRICTION_SHORT_NAME, shortname);
-            }
-            if (StringUtils.isNotBlank(idnumber)) {
-                queryParams.add(MOODLE_DEFAULT_COURSE_RESTRICTION_ID_NUMBER, idnumber);
-            }
-
-            final String resultJSON = template.callMoodleAPIFunction(
-                    MOODLE_DEFAULT_COURSE_RESTRICTION_WS_FUNCTION,
-                    queryParams,
-                    null);
-
-            final Error error = this.checkError(resultJSON);
-            if (error != null) {
-                log.error("Failed to get SEB restriction: {}", error.toString());
-                throw new NoSEBRestrictionException("Failed to get SEB restriction: " + error.exception);
-            }
-
-            final MoodleSEBRestriction restrictiondata = this.jsonMapper.readValue(
-                    resultJSON,
-                    new TypeReference<MoodleSEBRestriction>() {
-                    });
-
-            return restrictiondata;
-        });
-    }
-
-    Result<MoodleSEBRestriction> createSEBRestriction(
-            final String internalId,
-            final MoodleSEBRestriction restriction) {
-
-        return Result.tryCatch(() -> {
-            return createSEBRestriction(
-                    MoodleCourseAccess.getQuizId(internalId),
-                    MoodleCourseAccess.getShortname(internalId),
-                    MoodleCourseAccess.getIdnumber(internalId),
-                    restriction)
-                            .getOrThrow();
-        });
-    }
-
-    Result<MoodleSEBRestriction> createSEBRestriction(
-            final String quizId,
-            final String shortname,
-            final String idnumber,
-            final MoodleSEBRestriction restriction) {
-
-        if (log.isDebugEnabled()) {
-            log.debug("POST SEB Client restriction on course: {} quiz: restriction : {}",
-                    shortname,
-                    quizId,
-                    restriction);
-        }
-
-        return postSEBRestriction(
-                quizId,
-                shortname,
-                idnumber,
-                MOODLE_DEFAULT_COURSE_RESTRICTION_WS_FUNCTION_CREATE,
-                restriction);
-    }
-
-    Result<MoodleSEBRestriction> updateSEBRestriction(
-            final String internalId,
-            final MoodleSEBRestriction restriction) {
-
-        return Result.tryCatch(() -> {
-            return updateSEBRestriction(
-                    MoodleCourseAccess.getQuizId(internalId),
-                    MoodleCourseAccess.getShortname(internalId),
-                    MoodleCourseAccess.getIdnumber(internalId),
-                    restriction)
-                            .getOrThrow();
-        });
-    }
-
-    Result<MoodleSEBRestriction> updateSEBRestriction(
-            final String quizId,
-            final String shortname,
-            final String idnumber,
-            final MoodleSEBRestriction restriction) {
-
-        if (log.isDebugEnabled()) {
-            log.debug("POST SEB Client restriction on course: {} quiz: restriction : {}",
-                    shortname,
-                    quizId,
-                    restriction);
-        }
-
-        return postSEBRestriction(
-                quizId,
-                shortname,
-                idnumber,
-                MOODLE_DEFAULT_COURSE_RESTRICTION_WS_FUNCTION_UPDATE,
-                restriction);
-    }
-
-    Result<Boolean> deleteSEBRestriction(
-            final String internalId) {
-
-        return Result.tryCatch(() -> {
-            return deleteSEBRestriction(
-                    MoodleCourseAccess.getQuizId(internalId),
-                    MoodleCourseAccess.getShortname(internalId),
-                    MoodleCourseAccess.getIdnumber(internalId))
-                            .getOrThrow();
-        });
-    }
-
-    Result<Boolean> deleteSEBRestriction(
-            final String quizId,
-            final String shortname,
-            final String idnumber) {
-
-        if (log.isDebugEnabled()) {
-            log.debug("DELETE SEB Client restriction on course: {} quizId {}", shortname, quizId);
-        }
-
-        return Result.tryCatch(() -> {
-            final MoodleAPIRestTemplate template = getRestTemplate()
-                    .getOrThrow();
-
-            final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<>();
-            queryParams.add(MOODLE_DEFAULT_COURSE_RESTRICTION_QUIZ_ID, quizId);
-            if (StringUtils.isNotBlank(shortname)) {
-                queryParams.add(MOODLE_DEFAULT_COURSE_RESTRICTION_SHORT_NAME, shortname);
-            }
-            if (StringUtils.isNotBlank(idnumber)) {
-                queryParams.add(MOODLE_DEFAULT_COURSE_RESTRICTION_ID_NUMBER, idnumber);
-            }
-
-            final String jsonResponse = template.callMoodleAPIFunction(
-                    MOODLE_DEFAULT_COURSE_RESTRICTION_WS_FUNCTION_DELETE,
-                    queryParams,
-                    null);
-
-            final Error error = this.checkError(jsonResponse);
-            if (error != null) {
-                log.error("Failed to delete SEB restriction: {}", error.toString());
-                return false;
-            }
-
-            return true;
-        });
-    }
-
-    private Result<MoodleAPIRestTemplate> getRestTemplate() {
-        if (this.restTemplate == null) {
-            final Result<MoodleAPIRestTemplate> templateRequest = this.moodleRestTemplateFactory
-                    .createRestTemplate();
-            if (templateRequest.hasError()) {
-                return templateRequest;
-            } else {
-                this.restTemplate = templateRequest.get();
-            }
-        }
-
-        return Result.of(this.restTemplate);
-    }
-
-    private Result<MoodleSEBRestriction> postSEBRestriction(
-            final String quizId,
-            final String shortname,
-            final String idnumber,
-            final String function,
-            final MoodleSEBRestriction restriction) {
-        return Result.tryCatch(() -> {
-
-            final MoodleAPIRestTemplate template = getRestTemplate()
-                    .getOrThrow();
-
-            final MultiValueMap<String, String> queryParams = new LinkedMultiValueMap<>();
-            queryParams.add(MOODLE_DEFAULT_COURSE_RESTRICTION_QUIZ_ID, quizId);
-            if (StringUtils.isNotBlank(shortname)) {
-                queryParams.add(MOODLE_DEFAULT_COURSE_RESTRICTION_SHORT_NAME, shortname);
-            }
-            if (StringUtils.isNotBlank(idnumber)) {
-                queryParams.add(MOODLE_DEFAULT_COURSE_RESTRICTION_ID_NUMBER, idnumber);
-            }
-
-            final MultiValueMap<String, String> queryAttributes = new LinkedMultiValueMap<>();
-            queryAttributes.addAll(
-                    MOODLE_DEFAULT_COURSE_RESTRICTION_CONFIG_KEY,
-                    new ArrayList<>(restriction.configKeys));
-            queryAttributes.addAll(
-                    MOODLE_DEFAULT_COURSE_RESTRICTION_BROWSER_KEY,
-                    new ArrayList<>(restriction.browserExamKeys));
-
-            final String resultJSON = template.callMoodleAPIFunction(
-                    function,
-                    queryParams,
-                    queryAttributes);
-
-            final Error error = this.checkError(resultJSON);
-            if (error != null) {
-                log.error("Failed to post SEB restriction: {}", error.toString());
-                throw new NoSEBRestrictionException("Failed to post SEB restriction: " + error.exception);
-            }
-
-            final MoodleSEBRestriction restrictiondata = this.jsonMapper.readValue(
-                    resultJSON,
-                    new TypeReference<MoodleSEBRestriction>() {
-                    });
-
-            return restrictiondata;
-        });
-    }
-
-    public Error checkError(final String jsonResponse) {
-        if (jsonResponse.contains("exception") || jsonResponse.contains("errorcode")) {
-            try {
-                return this.jsonMapper.readValue(
-                        jsonResponse,
-                        new TypeReference<Error>() {
-                        });
-            } catch (final Exception e) {
-                log.error("Failed to parse error response: {} cause: ", jsonResponse, e);
-                return null;
-            }
-        }
-
-        return null;
-    }
-
-    @JsonIgnoreProperties(ignoreUnknown = true)
-    private static class Error {
-        public final String exception;
-        public final String errorcode;
-        public final String message;
-
-        @JsonCreator
-        Error(
-                @JsonProperty(value = "exception") final String exception,
-                @JsonProperty(value = "errorcode") final String errorcode,
-                @JsonProperty(value = "message") final String message) {
-            this.exception = exception;
-            this.errorcode = errorcode;
-            this.message = message;
-        }
-
-        @Override
-        public String toString() {
-            final StringBuilder builder = new StringBuilder();
-            builder.append("Error [exception=");
-            builder.append(this.exception);
-            builder.append(", errorcode=");
-            builder.append(this.errorcode);
-            builder.append(", message=");
-            builder.append(this.message);
-            builder.append("]");
-            return builder.toString();
-        }
+        return Result.ofError(new UnsupportedOperationException("SEB restriction not supported"));
     }
 
 }

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/moodle/legacy/MoodleLmsAPITemplateFactory.java

@@ -25,12 +25,14 @@ import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetup;
 import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetup.LmsType;
 import ch.ethz.seb.sebserver.gbl.profile.WebServiceProfile;
 import ch.ethz.seb.sebserver.gbl.util.Result;
+import ch.ethz.seb.sebserver.webservice.servicelayer.exam.ExamConfigurationValueService;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.APITemplateDataSupplier;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.LmsAPITemplate;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.LmsAPITemplateFactory;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.LmsAPITemplateAdapter;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodlePluginCheck;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleRestTemplateFactory;
-import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.plugin.MoodlePluginCheck;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleRestTemplateFactoryImpl;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.plugin.MoodlePluginCourseAccess;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.plugin.MoodlePluginCourseRestriction;
 
@@ -46,6 +48,7 @@ public class MoodleLmsAPITemplateFactory implements LmsAPITemplateFactory {
     private final Environment environment;
     private final ClientCredentialService clientCredentialService;
     private final ClientHttpRequestFactoryService clientHttpRequestFactoryService;
+    private final ExamConfigurationValueService examConfigurationValueService;
     private final ApplicationContext applicationContext;
     private final String[] alternativeTokenRequestPaths;
 
@@ -56,6 +59,7 @@ public class MoodleLmsAPITemplateFactory implements LmsAPITemplateFactory {
             final AsyncService asyncService,
             final Environment environment,
             final ClientCredentialService clientCredentialService,
+            final ExamConfigurationValueService examConfigurationValueService,
             final ClientHttpRequestFactoryService clientHttpRequestFactoryService,
             final ApplicationContext applicationContext,
             @Value("${sebserver.webservice.lms.moodle.api.token.request.paths:}") final String alternativeTokenRequestPaths) {
@@ -66,6 +70,7 @@ public class MoodleLmsAPITemplateFactory implements LmsAPITemplateFactory {
         this.asyncService = asyncService;
         this.environment = environment;
         this.clientCredentialService = clientCredentialService;
+        this.examConfigurationValueService = examConfigurationValueService;
         this.clientHttpRequestFactoryService = clientHttpRequestFactoryService;
         this.applicationContext = applicationContext;
         this.alternativeTokenRequestPaths = (alternativeTokenRequestPaths != null)
@@ -88,20 +93,26 @@ public class MoodleLmsAPITemplateFactory implements LmsAPITemplateFactory {
                     .getBean(MoodleCourseDataAsyncLoader.class);
             asyncLoaderPrototype.init(lmsSetup.getModelId());
 
-            final MoodleRestTemplateFactory moodleRestTemplateFactory = new MoodleRestTemplateFactory(
+            final MoodleRestTemplateFactory restTemplateFactory = new MoodleRestTemplateFactoryImpl(
                     this.jsonMapper,
                     apiTemplateDataSupplier,
                     this.clientCredentialService,
                     this.clientHttpRequestFactoryService,
                     this.alternativeTokenRequestPaths);
 
-            if (this.moodlePluginCheck.checkPluginAvailable(lmsSetup)) {
+            if (this.moodlePluginCheck.checkPluginAvailable(restTemplateFactory)) {
 
                 final MoodlePluginCourseAccess moodlePluginCourseAccess = new MoodlePluginCourseAccess(
                         this.jsonMapper,
-                        moodleRestTemplateFactory,
-                        this.cacheManager);
-                final MoodlePluginCourseRestriction moodlePluginCourseRestriction = new MoodlePluginCourseRestriction();
+                        this.asyncService,
+                        restTemplateFactory,
+                        this.cacheManager,
+                        this.environment);
+
+                final MoodlePluginCourseRestriction moodlePluginCourseRestriction = new MoodlePluginCourseRestriction(
+                        this.jsonMapper,
+                        restTemplateFactory,
+                        this.examConfigurationValueService);
 
                 return new LmsAPITemplateAdapter(
                         this.asyncService,
@@ -115,20 +126,16 @@ public class MoodleLmsAPITemplateFactory implements LmsAPITemplateFactory {
                 final MoodleCourseAccess moodleCourseAccess = new MoodleCourseAccess(
                         this.jsonMapper,
                         this.asyncService,
-                        moodleRestTemplateFactory,
+                        restTemplateFactory,
                         asyncLoaderPrototype,
                         this.environment);
 
-                final MoodleCourseRestriction moodleCourseRestriction = new MoodleCourseRestriction(
-                        this.jsonMapper,
-                        moodleRestTemplateFactory);
-
                 return new LmsAPITemplateAdapter(
                         this.asyncService,
                         this.environment,
                         apiTemplateDataSupplier,
                         moodleCourseAccess,
-                        moodleCourseRestriction);
+                        new MoodleCourseRestriction());
             }
         });
     }

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/moodle/plugin/MoodlePluginCheck.java

@@ -1,31 +0,0 @@
-/*
- * Copyright (c) 2022 ETH Zürich, Educational Development and Technology (LET)
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/.
- */
-
-package ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.plugin;
-
-import org.springframework.context.annotation.Lazy;
-import org.springframework.stereotype.Service;
-
-import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetup;
-import ch.ethz.seb.sebserver.gbl.profile.WebServiceProfile;
-
-@Lazy
-@Service
-@WebServiceProfile
-public class MoodlePluginCheck {
-
-    /** Used to check if the moodle SEB Server plugin is available for a given LMSSetup.
-     *
-     * @param lmsSetup The LMS Setup
-     * @return true if the SEB Server plugin is available */
-    public boolean checkPluginAvailable(final LmsSetup lmsSetup) {
-        // TODO check if the moodle plugin is installed for the specified LMS Setup
-        return false;
-    }
-
-}

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/moodle/plugin/MoodlePluginCourseAccess.java

@@ -8,64 +8,127 @@
 
 package ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.plugin;
 
+import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
 import java.util.List;
+import java.util.Map;
+import java.util.Objects;
 import java.util.Set;
+import java.util.function.Function;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
+import org.apache.commons.lang3.BooleanUtils;
+import org.apache.commons.lang3.StringUtils;
+import org.joda.time.DateTime;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.cache.CacheManager;
+import org.springframework.core.env.Environment;
+import org.springframework.util.LinkedMultiValueMap;
+import org.springframework.util.MultiValueMap;
 
-import com.fasterxml.jackson.annotation.JsonCreator;
-import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
-import com.fasterxml.jackson.annotation.JsonProperty;
+import com.fasterxml.jackson.core.JsonParseException;
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.JsonMappingException;
 
+import ch.ethz.seb.sebserver.gbl.Constants;
 import ch.ethz.seb.sebserver.gbl.api.JSONMapper;
+import ch.ethz.seb.sebserver.gbl.async.AsyncService;
+import ch.ethz.seb.sebserver.gbl.async.CircuitBreaker;
 import ch.ethz.seb.sebserver.gbl.model.exam.Chapters;
 import ch.ethz.seb.sebserver.gbl.model.exam.QuizData;
+import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetup;
 import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetup.LmsType;
 import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetupTestResult;
 import ch.ethz.seb.sebserver.gbl.model.user.ExamineeAccountDetails;
 import ch.ethz.seb.sebserver.gbl.util.Result;
+import ch.ethz.seb.sebserver.gbl.util.Utils;
 import ch.ethz.seb.sebserver.webservice.servicelayer.dao.FilterMap;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.CourseAccessAPI;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.LmsAPIService;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.AbstractCachedCourseAccess;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleAPIRestTemplate;
-import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleAPIRestTemplate.Warning;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleRestTemplateFactory;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleUtils;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleUtils.CourseData;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleUtils.CourseQuizData;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleUtils.Courses;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleUtils.MoodlePluginUserDetails;
 
 public class MoodlePluginCourseAccess extends AbstractCachedCourseAccess implements CourseAccessAPI {
 
     private static final Logger log = LoggerFactory.getLogger(MoodlePluginCourseAccess.class);
 
-    static final String COURSES_API_FUNCTION_NAME = "local_sebserver_get_courses";
-    static final String QUIZZES_BY_COURSES_API_FUNCTION_NAME = "local_sebserver_get_quizzes_by_courses";
-    static final String USERS_API_FUNCTION_NAME = "local_sebserver_get_users";
+    public static final String MOODLE_QUIZ_START_URL_PATH = "mod/quiz/view.php?id=";
+    public static final String COURSES_API_FUNCTION_NAME = "quizaccess_sebserver_get_courses";
+    public static final String QUIZZES_BY_COURSES_API_FUNCTION_NAME = "quizaccess_sebserver_get_quizzes_by_courses";
+    public static final String USERS_API_FUNCTION_NAME = "quizaccess_sebserver_get_users";
 
-    static final String CRITERIA_FROM_DATE = "from_date";
-    static final String CRITERIA_TO_DATE = "to_date";
-    static final String CRITERIA_LIMIT_FROM = "limitfrom";
-    static final String CRITERIA_LIMIT_NUM = "limitnum";
+    public static final String ATTR_FIELD = "field";
+    public static final String CRITERIA_COURSE_IDS = "ids";
+    public static final String CRITERIA_FROM_DATE = "from_date";
+    public static final String CRITERIA_TO_DATE = "to_date";
+    public static final String CRITERIA_LIMIT_FROM = "limitfrom";
+    public static final String CRITERIA_LIMIT_NUM = "limitnum";
 
     private final JSONMapper jsonMapper;
-    private final MoodleRestTemplateFactory moodleRestTemplateFactory;
+    private final MoodleRestTemplateFactory restTemplateFactory;
+    private final CircuitBreaker<String> protectedMoodlePageCall;
+    private final boolean prependShortCourseName;
+    private final int pageSize;
+    private final int maxSize;
 
     private MoodleAPIRestTemplate restTemplate;
 
     public MoodlePluginCourseAccess(
             final JSONMapper jsonMapper,
-            final MoodleRestTemplateFactory moodleRestTemplateFactory,
-            final CacheManager cacheManager) {
+            final AsyncService asyncService,
+            final MoodleRestTemplateFactory restTemplateFactory,
+            final CacheManager cacheManager,
+            final Environment environment) {
+
         super(cacheManager);
         this.jsonMapper = jsonMapper;
-        this.moodleRestTemplateFactory = moodleRestTemplateFactory;
+        this.restTemplateFactory = restTemplateFactory;
+
+        this.prependShortCourseName = BooleanUtils.toBoolean(environment.getProperty(
+                "sebserver.webservice.lms.moodle.prependShortCourseName",
+                Constants.TRUE_STRING));
+
+        this.protectedMoodlePageCall = asyncService.createCircuitBreaker(
+                environment.getProperty(
+                        "sebserver.webservice.circuitbreaker.moodleRestCall.attempts",
+                        Integer.class,
+                        2),
+                environment.getProperty(
+                        "sebserver.webservice.circuitbreaker.moodleRestCall.blockingTime",
+                        Long.class,
+                        Constants.SECOND_IN_MILLIS * 20),
+                environment.getProperty(
+                        "sebserver.webservice.circuitbreaker.moodleRestCall.timeToRecover",
+                        Long.class,
+                        Constants.MINUTE_IN_MILLIS));
+        this.maxSize =
+                environment.getProperty("sebserver.webservice.cache.moodle.course.maxSize", Integer.class, 10000);
+        this.pageSize =
+                environment.getProperty("sebserver.webservice.cache.moodle.course.pageSize", Integer.class, 10);
+    }
+
+    @Override
+    protected Long getLmsSetupId() {
+        return this.restTemplateFactory.getApiTemplateDataSupplier().getLmsSetup().id;
     }
 
     @Override
     public LmsSetupTestResult testCourseAccessAPI() {
-        final LmsSetupTestResult attributesCheck = this.moodleRestTemplateFactory.test();
+        final LmsSetupTestResult attributesCheck = this.restTemplateFactory.test();
         if (!attributesCheck.isOk()) {
             return attributesCheck;
         }
@@ -73,78 +136,417 @@ public class MoodlePluginCourseAccess extends AbstractCachedCourseAccess impleme
         final Result<MoodleAPIRestTemplate> restTemplateRequest = getRestTemplate();
         if (restTemplateRequest.hasError()) {
             final String message = "Failed to gain access token from Moodle Rest API:\n tried token endpoints: " +
-                    this.moodleRestTemplateFactory.knownTokenAccessPaths;
+                    this.restTemplateFactory.getKnownTokenAccessPaths();
             log.error(message + " cause: {}", restTemplateRequest.getError().getMessage());
             return LmsSetupTestResult.ofTokenRequestError(LmsType.MOODLE_PLUGIN, message);
         }
 
         final MoodleAPIRestTemplate restTemplate = restTemplateRequest.get();
 
-//        try {
-//            restTemplate.testAPIConnection(
-//                    COURSES_API_FUNCTION_NAME,
-//                    QUIZZES_BY_COURSES_API_FUNCTION_NAME,
-//                    USERS_API_FUNCTION_NAME);
-//        } catch (final RuntimeException e) {
-//            log.error("Failed to access Moodle course API: ", e);
-//            return LmsSetupTestResult.ofQuizAccessAPIError(LmsType.MOODLE_PLUGIN, e.getMessage());
-//        }
+        try {
+
+            restTemplate.testAPIConnection(
+                    COURSES_API_FUNCTION_NAME,
+                    QUIZZES_BY_COURSES_API_FUNCTION_NAME,
+                    USERS_API_FUNCTION_NAME);
+
+        } catch (final RuntimeException e) {
+            log.error("Failed to access Moodle course API: ", e);
+            return LmsSetupTestResult.ofQuizAccessAPIError(LmsType.MOODLE_PLUGIN, e.getMessage());
+        }
 
         return LmsSetupTestResult.ofOkay(LmsType.MOODLE_PLUGIN);
     }
 
     @Override
     public Result<List<QuizData>> getQuizzes(final FilterMap filterMap) {
-        System.out.println("***************** filterMap: " + filterMap);
-        // TODO Auto-generated method stub
-        return Result.of(Collections.emptyList());
-    }
-
-    @Override
-    public Result<Collection<QuizData>> getQuizzes(final Set<String> ids) {
-        // TODO Auto-generated method stub
-        return null;
+        return Result.ofError(new UnsupportedOperationException());
     }
 
     @Override
     public void fetchQuizzes(final FilterMap filterMap, final AsyncQuizFetchBuffer asyncQuizFetchBuffer) {
-        // TODO Auto-generated method stub
+        try {
 
+            int page = 0;
+            int failedAttempts = 0;
+            final DateTime quizFromTime = filterMap.getQuizFromTime();
+            final Predicate<QuizData> quizFilter = LmsAPIService.quizFilterPredicate(filterMap);
+
+            while (!asyncQuizFetchBuffer.finished && !asyncQuizFetchBuffer.canceled) {
+                try {
+                    fetchQuizzesPage(page, quizFromTime, asyncQuizFetchBuffer, quizFilter);
+                    page++;
+                } catch (final Exception e) {
+                    log.error("Unexpected error while trying to fetch moodle quiz page: {}", page, e);
+                    failedAttempts++;
+                    if (failedAttempts > 3) {
+                        asyncQuizFetchBuffer.finish(e);
+                    }
+                }
+            }
+
+        } catch (final Exception e) {
+            asyncQuizFetchBuffer.finish(e);
+        }
+    }
+
+    @Override
+    public Result<Collection<QuizData>> getQuizzes(final Set<String> ids) {
+        return Result.tryCatch(() -> {
+
+            final Set<String> missingIds = new HashSet<>(ids);
+            final Collection<QuizData> result = new ArrayList<>();
+            final Set<String> fromCache = ids.stream()
+                    .map(super::getFromCache).filter(Objects::nonNull)
+                    .map(qd -> {
+                        result.add(qd);
+                        return qd.id;
+                    }).collect(Collectors.toSet());
+            missingIds.removeAll(fromCache);
+
+            if (!missingIds.isEmpty()) {
+
+                result.addAll(getRestTemplate()
+                        .map(template -> getQuizzesForIds(template, ids))
+                        .map(super::putToCache)
+                        .onError(error -> log.error("Failed to get courses for: {}", ids, error))
+                        .getOrElse(() -> Collections.emptyList()));
+            }
+
+            return result;
+        });
     }
 
     @Override
     public Result<QuizData> getQuiz(final String id) {
-        // TODO Auto-generated method stub
-        return null;
+        return Result.tryCatch(() -> {
+
+            final QuizData fromCache = super.getFromCache(id);
+            if (fromCache != null) {
+                return fromCache;
+            }
+
+            final Set<String> ids = Stream.of(id).collect(Collectors.toSet());
+            final Iterator<QuizData> iterator = getRestTemplate()
+                    .map(template -> getQuizzesForIds(template, ids))
+                    .map(super::putToCache)
+                    .getOr(Collections.emptyList())
+                    .iterator();
+
+            if (!iterator.hasNext()) {
+                throw new RuntimeException("Moodle Quiz for id " + id + " not found");
+            }
+
+            return iterator.next();
+        });
     }
 
     @Override
     public Result<ExamineeAccountDetails> getExamineeAccountDetails(final String examineeUserId) {
-        // TODO Auto-generated method stub
-        return null;
+        return Result.tryCatch(() -> {
+
+            final MoodleAPIRestTemplate template = getRestTemplate()
+                    .getOrThrow();
+
+            final MultiValueMap<String, String> queryAttributes = new LinkedMultiValueMap<>();
+            queryAttributes.add(ATTR_FIELD, "id");
+            queryAttributes.add("values[0]", examineeUserId);
+
+            final String userDetailsJSON = template.callMoodleAPIFunction(
+                    USERS_API_FUNCTION_NAME,
+                    queryAttributes);
+
+            if (MoodleUtils.checkAccessDeniedError(userDetailsJSON)) {
+                final LmsSetup lmsSetup = this.restTemplateFactory.getApiTemplateDataSupplier().getLmsSetup();
+                log.error("Get access denied error from Moodle: {} for API call: {}, response: {}",
+                        lmsSetup,
+                        USERS_API_FUNCTION_NAME,
+                        Utils.truncateText(userDetailsJSON, 2000));
+                throw new RuntimeException("No user details on Moodle API request (access-denied)");
+            }
+
+            final MoodlePluginUserDetails[] userDetails = this.jsonMapper.<MoodlePluginUserDetails[]> readValue(
+                    userDetailsJSON,
+                    new TypeReference<MoodlePluginUserDetails[]>() {
+                    });
+
+            if (userDetails == null || userDetails.length <= 0) {
+                throw new RuntimeException("No user details on Moodle API request");
+            }
+
+            return new ExamineeAccountDetails(
+                    userDetails[0].id,
+                    userDetails[0].fullname,
+                    userDetails[0].username,
+                    userDetails[0].email,
+                    userDetails[0].customfields);
+        });
     }
 
     @Override
     public String getExamineeName(final String examineeUserId) {
-        // TODO Auto-generated method stub
-        return null;
+        return getExamineeAccountDetails(examineeUserId)
+                .map(ExamineeAccountDetails::getDisplayName)
+                .onError(error -> log.warn("Failed to request user-name for ID: {}", error.getMessage(), error))
+                .getOr(examineeUserId);
     }
 
     @Override
     public Result<Chapters> getCourseChapters(final String courseId) {
-        // TODO Auto-generated method stub
-        return null;
+        return Result.of(new Chapters(Collections.emptyList()));
     }
 
-    @Override
-    protected Long getLmsSetupId() {
-        // TODO Auto-generated method stub
-        return null;
+    private String getLmsSetupName() {
+        return this.restTemplateFactory.getApiTemplateDataSupplier().getLmsSetup().name;
+    }
+
+    private void fetchQuizzesPage(
+            final int page,
+            final DateTime quizFromTime,
+            final AsyncQuizFetchBuffer asyncQuizFetchBuffer,
+            final Predicate<QuizData> quizFilter) throws JsonParseException, JsonMappingException, IOException {
+
+        final MoodleAPIRestTemplate restTemplate = getRestTemplate().getOrThrow();
+
+        final LmsSetup lmsSetup = this.restTemplateFactory.getApiTemplateDataSupplier().getLmsSetup();
+        final String urlPrefix = (lmsSetup.lmsApiUrl.endsWith(Constants.URL_PATH_SEPARATOR))
+                ? lmsSetup.lmsApiUrl + MOODLE_QUIZ_START_URL_PATH
+                : lmsSetup.lmsApiUrl + Constants.URL_PATH_SEPARATOR + MOODLE_QUIZ_START_URL_PATH;
+
+        // first get courses page from moodle
+        final Map<String, CourseData> courseData = new HashMap<>();
+        final Collection<CourseData> coursesPage = getCoursesPage(restTemplate, quizFromTime, page, this.pageSize);
+
+        // no courses for page --> finish
+        if (coursesPage == null || coursesPage.isEmpty()) {
+            asyncQuizFetchBuffer.finish();
+            return;
+        }
+
+        courseData.putAll(coursesPage
+                .stream()
+                .collect(Collectors.toMap(
+                        cd -> cd.id,
+                        Function.identity())));
+
+        // then get all quizzes of courses and filter
+        final LinkedMultiValueMap<String, String> attributes = new LinkedMultiValueMap<>();
+        final List<String> courseIds = new ArrayList<>(courseData.keySet());
+        attributes.put(CRITERIA_COURSE_IDS, courseIds);
+
+        final String quizzesJSON = this.protectedMoodlePageCall
+                .protectedRun(() -> restTemplate.callMoodleAPIFunction(
+                        QUIZZES_BY_COURSES_API_FUNCTION_NAME,
+                        attributes))
+                .getOrThrow();
+
+        final CourseQuizData courseQuizData = this.jsonMapper.readValue(
+                quizzesJSON,
+                CourseQuizData.class);
+
+        if (courseQuizData == null) {
+            return; // SEBSERV-361
+        }
+
+        if (courseQuizData.warnings != null && !courseQuizData.warnings.isEmpty()) {
+            MoodleUtils.logMoodleWarning(
+                    courseQuizData.warnings,
+                    lmsSetup.name,
+                    QUIZZES_BY_COURSES_API_FUNCTION_NAME);
+        }
+
+        if (courseQuizData.quizzes == null || courseQuizData.quizzes.isEmpty()) {
+            return; // no quizzes on this page
+        }
+
+        courseQuizData.quizzes
+                .stream()
+                .filter(MoodleUtils.getQuizFilter())
+                .forEach(quiz -> {
+                    final CourseData data = courseData.get(quiz.course);
+                    if (data != null) {
+                        data.quizzes.add(quiz);
+                    }
+                });
+
+        courseData.values().stream()
+                .filter(c -> !c.quizzes.isEmpty())
+                .forEach(c -> asyncQuizFetchBuffer.buffer.addAll(
+                        MoodleUtils.quizDataOf(lmsSetup, c, urlPrefix, this.prependShortCourseName)
+                                .stream()
+                                .filter(quizFilter)
+                                .collect(Collectors.toList())));
+
+        if (asyncQuizFetchBuffer.buffer.size() > this.maxSize) {
+            log.warn("Maximal moodle quiz fetch size of {} reached. Cancel fetch at this point.", this.maxSize);
+            asyncQuizFetchBuffer.finish();
+        }
+    }
+
+    private Collection<CourseData> getCoursesPage(
+            final MoodleAPIRestTemplate restTemplate,
+            final DateTime quizFromTime,
+            final int page,
+            final int size) throws JsonParseException, JsonMappingException, IOException {
+
+        final String lmsName = getLmsSetupName();
+        try {
+            // get course ids per page
+            final String fromDate = String.valueOf(Utils.toUnixTimeInSeconds(quizFromTime));
+            final String fromElement = String.valueOf(page * size);
+            final LinkedMultiValueMap<String, String> attributes = new LinkedMultiValueMap<>();
+            attributes.add(CRITERIA_FROM_DATE, fromDate);
+            attributes.add(CRITERIA_LIMIT_FROM, fromElement);
+
+            final String courseKeyPageJSON = this.protectedMoodlePageCall
+                    .protectedRun(() -> restTemplate.callMoodleAPIFunction(
+                            COURSES_API_FUNCTION_NAME,
+                            attributes))
+                    .getOrThrow();
+
+            final Courses coursePage = this.jsonMapper.readValue(courseKeyPageJSON, Courses.class);
+
+            if (coursePage == null) {
+                log.error("No CoursePage Response");
+                return Collections.emptyList();
+            }
+
+            if (coursePage.warnings != null && !coursePage.warnings.isEmpty()) {
+                MoodleUtils.logMoodleWarning(coursePage.warnings, lmsName, COURSES_API_FUNCTION_NAME);
+            }
+
+            Collection<CourseData> result;
+            if (coursePage.courses == null || coursePage.courses.isEmpty()) {
+                if (log.isDebugEnabled()) {
+                    log.debug("LMS Setup: {} No courses found on page: {}", lmsName, page);
+                    if (log.isTraceEnabled()) {
+                        log.trace("Moodle response: {}", courseKeyPageJSON);
+                    }
+                }
+                result = Collections.emptyList();
+            } else {
+                result = coursePage.courses;
+            }
+
+            if (log.isDebugEnabled()) {
+                log.debug("course page with {} courses", result.size());
+            }
+
+            return result;
+        } catch (final Exception e) {
+            log.error("LMS Setup: {} Unexpected error while trying to get courses page: ", lmsName, e);
+            return Collections.emptyList();
+        }
+    }
+
+    private List<QuizData> getQuizzesForIds(
+            final MoodleAPIRestTemplate restTemplate,
+            final Set<String> quizIds) {
+
+        try {
+
+            final LmsSetup lmsSetup = this.restTemplateFactory.getApiTemplateDataSupplier().getLmsSetup();
+
+            if (log.isDebugEnabled()) {
+                log.debug("Get quizzes for ids: {} and LMSSetup: {}", quizIds, lmsSetup);
+            }
+
+            // get involved courses and map by course id
+            final Map<String, CourseData> courseData = getCoursesForIds(
+                    restTemplate,
+                    quizIds.stream()
+                            .map(MoodleUtils::getCourseId)
+                            .collect(Collectors.toSet()))
+                                    .stream()
+                                    .collect(Collectors.toMap(cd -> cd.id, Function.identity()));
+
+            // then get all quizzes of courses and filter
+            final LinkedMultiValueMap<String, String> attributes = new LinkedMultiValueMap<>();
+            attributes.put(CRITERIA_COURSE_IDS, new ArrayList<>(courseData.keySet()));
+
+            final String quizzesJSON = restTemplate.callMoodleAPIFunction(
+                    QUIZZES_BY_COURSES_API_FUNCTION_NAME,
+                    attributes);
+
+            final CourseQuizData courseQuizData = this.jsonMapper.readValue(
+                    quizzesJSON,
+                    CourseQuizData.class);
+
+            if (courseQuizData.warnings != null && !courseQuizData.warnings.isEmpty()) {
+                MoodleUtils.logMoodleWarning(
+                        courseQuizData.warnings,
+                        lmsSetup.name,
+                        QUIZZES_BY_COURSES_API_FUNCTION_NAME);
+            }
+
+            final Map<String, CourseData> finalCourseDataRef = courseData;
+            courseQuizData.quizzes
+                    .stream()
+                    .forEach(quiz -> MoodleUtils.fillSelectedQuizzes(quizIds, finalCourseDataRef, quiz));
+
+            final String urlPrefix = (lmsSetup.lmsApiUrl.endsWith(Constants.URL_PATH_SEPARATOR))
+                    ? lmsSetup.lmsApiUrl + MOODLE_QUIZ_START_URL_PATH
+                    : lmsSetup.lmsApiUrl + Constants.URL_PATH_SEPARATOR + MOODLE_QUIZ_START_URL_PATH;
+
+            return courseData.values()
+                    .stream()
+                    .filter(c -> !c.quizzes.isEmpty())
+                    .flatMap(cd -> MoodleUtils.quizDataOf(
+                            lmsSetup,
+                            cd,
+                            urlPrefix,
+                            this.prependShortCourseName).stream())
+                    .collect(Collectors.toList());
+
+        } catch (final Exception e) {
+            log.error("Unexpected error while trying to get quizzes for ids", e);
+            return Collections.emptyList();
+        }
+    }
+
+    private Collection<CourseData> getCoursesForIds(
+            final MoodleAPIRestTemplate restTemplate,
+            final Set<String> courseIds) {
+
+        try {
+
+            final LmsSetup lmsSetup = this.restTemplateFactory.getApiTemplateDataSupplier().getLmsSetup();
+
+            if (log.isDebugEnabled()) {
+                log.debug("Get courses for ids: {} on LMS: {}", courseIds, lmsSetup);
+            }
+
+            final String joinedIds = StringUtils.join(courseIds, Constants.COMMA);
+
+            final LinkedMultiValueMap<String, String> attributes = new LinkedMultiValueMap<>();
+            attributes.add(CRITERIA_COURSE_IDS, joinedIds);
+            final String coursePageJSON = restTemplate.callMoodleAPIFunction(
+                    COURSES_API_FUNCTION_NAME,
+                    attributes);
+
+            final Courses courses = this.jsonMapper.readValue(
+                    coursePageJSON,
+                    Courses.class);
+
+            if (courses.courses == null || courses.courses.isEmpty()) {
+                log.warn("No courses found for ids: {} on LMS: {}", courseIds, lmsSetup.name);
+
+                if (courses != null && courses.warnings != null && !courses.warnings.isEmpty()) {
+                    MoodleUtils.logMoodleWarning(courses.warnings, lmsSetup.name, COURSES_API_FUNCTION_NAME);
+                }
+                return Collections.emptyList();
+            }
+
+            return courses.courses;
+        } catch (final Exception e) {
+            log.error("Unexpected error while trying to get courses for ids", e);
+            return Collections.emptyList();
+        }
     }
 
     private Result<MoodleAPIRestTemplate> getRestTemplate() {
         if (this.restTemplate == null) {
-            final Result<MoodleAPIRestTemplate> templateRequest = this.moodleRestTemplateFactory
+            final Result<MoodleAPIRestTemplate> templateRequest = this.restTemplateFactory
                     .createRestTemplate();
             if (templateRequest.hasError()) {
                 return templateRequest;
@@ -156,99 +558,4 @@ public class MoodlePluginCourseAccess extends AbstractCachedCourseAccess impleme
         return Result.of(this.restTemplate);
     }
 
-    // ---- Mapping Classes ---
-
-    @JsonIgnoreProperties(ignoreUnknown = true)
-    private static final class Courses {
-        final Collection<CourseData> courses;
-        final Collection<Warning> warnings;
-
-        @JsonCreator
-        protected Courses(
-                @JsonProperty(value = "courses") final Collection<CourseData> courses,
-                @JsonProperty(value = "warnings") final Collection<Warning> warnings) {
-            this.courses = courses;
-            this.warnings = warnings;
-        }
-    }
-
-    /** Maps the Moodle course API course data */
-    @JsonIgnoreProperties(ignoreUnknown = true)
-    private static final class CourseData {
-        final String id;
-        final String short_name;
-        final String idnumber;
-        final String full_name;
-        final String display_name;
-        final Long start_date; // unix-time seconds UTC
-        final Long end_date; // unix-time seconds UTC
-        final Long time_created; // unix-time seconds UTC
-        final Collection<CourseQuiz> quizzes = new ArrayList<>();
-
-        @JsonCreator
-        protected CourseData(
-                @JsonProperty(value = "id") final String id,
-                @JsonProperty(value = "shortname") final String short_name,
-                @JsonProperty(value = "idnumber") final String idnumber,
-                @JsonProperty(value = "fullname") final String full_name,
-                @JsonProperty(value = "displayname") final String display_name,
-                @JsonProperty(value = "startdate") final Long start_date,
-                @JsonProperty(value = "enddate") final Long end_date,
-                @JsonProperty(value = "timecreated") final Long time_created) {
-
-            this.id = id;
-            this.short_name = short_name;
-            this.idnumber = idnumber;
-            this.full_name = full_name;
-            this.display_name = display_name;
-            this.start_date = start_date;
-            this.end_date = end_date;
-            this.time_created = time_created;
-        }
-    }
-
-    @JsonIgnoreProperties(ignoreUnknown = true)
-    private static final class CourseQuizData {
-        final Collection<CourseQuiz> quizzes;
-        final Collection<Warning> warnings;
-
-        @JsonCreator
-        protected CourseQuizData(
-                @JsonProperty(value = "quizzes") final Collection<CourseQuiz> quizzes,
-                @JsonProperty(value = "warnings") final Collection<Warning> warnings) {
-            this.quizzes = quizzes;
-            this.warnings = warnings;
-        }
-    }
-
-    @JsonIgnoreProperties(ignoreUnknown = true)
-    static final class CourseQuiz {
-        final String id;
-        final String course;
-        final String course_module;
-        final String name;
-        final String intro; // HTML
-        final Long time_open; // unix-time seconds UTC
-        final Long time_close; // unix-time seconds UTC
-
-        @JsonCreator
-        protected CourseQuiz(
-                @JsonProperty(value = "id") final String id,
-                @JsonProperty(value = "course") final String course,
-                @JsonProperty(value = "coursemodule") final String course_module,
-                @JsonProperty(value = "name") final String name,
-                @JsonProperty(value = "intro") final String intro,
-                @JsonProperty(value = "timeopen") final Long time_open,
-                @JsonProperty(value = "timeclose") final Long time_close) {
-
-            this.id = id;
-            this.course = course;
-            this.course_module = course_module;
-            this.name = name;
-            this.intro = intro;
-            this.time_open = time_open;
-            this.time_close = time_close;
-        }
-    }
-
 }

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/moodle/plugin/MoodlePluginCourseRestriction.java

@@ -8,25 +8,116 @@
 
 package ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.plugin;
 
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.commons.lang3.StringUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.util.LinkedMultiValueMap;
+
+import ch.ethz.seb.sebserver.gbl.Constants;
+import ch.ethz.seb.sebserver.gbl.api.JSONMapper;
 import ch.ethz.seb.sebserver.gbl.model.exam.Exam;
 import ch.ethz.seb.sebserver.gbl.model.exam.SEBRestriction;
 import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetup.LmsType;
 import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetupTestResult;
 import ch.ethz.seb.sebserver.gbl.util.Result;
+import ch.ethz.seb.sebserver.webservice.servicelayer.exam.ExamConfigurationValueService;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.SEBRestrictionAPI;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.SEBRestrictionService;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleAPIRestTemplate;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleRestTemplateFactory;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleUtils;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleUtils.MoodleQuizRestriction;
 
 public class MoodlePluginCourseRestriction implements SEBRestrictionAPI {
 
+    private static final Logger log = LoggerFactory.getLogger(MoodlePluginCourseRestriction.class);
+
+    public static final String RESTRICTION_GET_FUNCTION_NAME = "quizaccess_sebserver_get_restriction";
+    public static final String RESTRICTION_SET_FUNCTION_NAME = "quizaccess_sebserver_set_restriction";
+
+    public static final String ATTRIBUTE_QUIZ_ID = "quiz_id";
+    public static final String ATTRIBUTE_CONFIG_KEYS = "config_keys";
+    public static final String ATTRIBUTE_BROWSER_EXAM_KEYS = "browser_exam_keys";
+    public static final String ATTRIBUTE_QUIT_URL = "quit_link";
+    public static final String ATTRIBUTE_QUIT_SECRET = "quit_secret";
+
+    private final JSONMapper jsonMapper;
+    private final MoodleRestTemplateFactory restTemplateFactory;
+    private final ExamConfigurationValueService examConfigurationValueService;
+
+    private MoodleAPIRestTemplate restTemplate;
+
+    public MoodlePluginCourseRestriction(
+            final JSONMapper jsonMapper,
+            final MoodleRestTemplateFactory restTemplateFactory,
+            final ExamConfigurationValueService examConfigurationValueService) {
+
+        this.jsonMapper = jsonMapper;
+        this.restTemplateFactory = restTemplateFactory;
+        this.examConfigurationValueService = examConfigurationValueService;
+    }
+
     @Override
     public LmsSetupTestResult testCourseRestrictionAPI() {
-        // TODO Auto-generated method stub
+
+        final LmsSetupTestResult attributesCheck = this.restTemplateFactory.test();
+        if (!attributesCheck.isOk()) {
+            return attributesCheck;
+        }
+
+        final Result<MoodleAPIRestTemplate> restTemplateRequest = getRestTemplate();
+        if (restTemplateRequest.hasError()) {
+            final String message = "Failed to gain access token from Moodle Rest API:\n tried token endpoints: " +
+                    this.restTemplateFactory.getKnownTokenAccessPaths();
+            log.error(message + " cause: {}", restTemplateRequest.getError().getMessage());
+            return LmsSetupTestResult.ofTokenRequestError(LmsType.MOODLE_PLUGIN, message);
+        }
+
+        try {
+            final MoodleAPIRestTemplate restTemplate = restTemplateRequest.get();
+            restTemplate.testAPIConnection(
+                    RESTRICTION_GET_FUNCTION_NAME,
+                    RESTRICTION_SET_FUNCTION_NAME);
+
+        } catch (final RuntimeException e) {
+            log.error("Failed to access Moodle course API: ", e);
+            return LmsSetupTestResult.ofQuizAccessAPIError(LmsType.MOODLE_PLUGIN, e.getMessage());
+        }
+
         return LmsSetupTestResult.ofOkay(LmsType.MOODLE_PLUGIN);
     }
 
     @Override
     public Result<SEBRestriction> getSEBClientRestriction(final Exam exam) {
-        // TODO Auto-generated method stub
-        return null;
+        return getRestTemplate().map(restTemplate -> {
+
+            if (log.isDebugEnabled()) {
+                log.debug("Get SEB Client restriction on exam: {}", exam);
+            }
+
+            final String quizId = MoodleUtils.getQuizId(exam.getExternalId());
+            final LinkedMultiValueMap<String, String> addQuery = new LinkedMultiValueMap<>();
+            addQuery.add(ATTRIBUTE_QUIZ_ID, quizId);
+
+            final String srJSON = restTemplate.callMoodleAPIFunction(RESTRICTION_GET_FUNCTION_NAME, addQuery);
+
+            try {
+
+                final MoodleQuizRestriction moodleRestriction = this.jsonMapper.readValue(
+                        srJSON,
+                        MoodleUtils.MoodleQuizRestriction.class);
+
+                return toSEBRestriction(exam, moodleRestriction);
+            } catch (final Exception e) {
+                throw new RuntimeException("Unexpected error while get SEB restriction: ", e);
+            }
+        });
     }
 
     @Override
@@ -34,14 +125,113 @@ public class MoodlePluginCourseRestriction implements SEBRestrictionAPI {
             final Exam exam,
             final SEBRestriction sebRestrictionData) {
 
-        // TODO Auto-generated method stub
-        return null;
+        return Result.tryCatch(() -> {
+
+            if (log.isDebugEnabled()) {
+                log.debug("Apply SEB Client restriction on exam: {}", exam);
+            }
+
+            final String quizId = MoodleUtils.getQuizId(exam.getExternalId());
+            final LinkedMultiValueMap<String, String> addQuery = new LinkedMultiValueMap<>();
+            addQuery.add(ATTRIBUTE_QUIZ_ID, quizId);
+
+            final ArrayList<String> beks = new ArrayList<>(sebRestrictionData.browserExamKeys);
+            final ArrayList<String> configKeys = new ArrayList<>(sebRestrictionData.configKeys);
+            final String quitLink = this.examConfigurationValueService.getQuitLink(exam.id);
+            final String quitSecret = this.examConfigurationValueService.getQuitSecret(exam.id);
+            final String additionalBEK = sebRestrictionData.additionalProperties.get(
+                    SEBRestrictionService.ADDITIONAL_ATTR_ALTERNATIVE_SEB_BEK);
+            if (additionalBEK != null) {
+                beks.add(additionalBEK);
+            }
+
+            final LinkedMultiValueMap<String, String> queryAttributes = new LinkedMultiValueMap<>();
+            queryAttributes.put(ATTRIBUTE_CONFIG_KEYS, configKeys);
+            queryAttributes.put(ATTRIBUTE_BROWSER_EXAM_KEYS, beks);
+            queryAttributes.add(ATTRIBUTE_QUIT_URL, quitLink);
+            queryAttributes.add(ATTRIBUTE_QUIT_SECRET, quitSecret);
+
+            final String srJSON = this.restTemplate.callMoodleAPIFunction(
+                    RESTRICTION_SET_FUNCTION_NAME,
+                    addQuery,
+                    queryAttributes);
+
+            try {
+
+                final MoodleQuizRestriction moodleRestriction = this.jsonMapper.readValue(
+                        srJSON,
+                        MoodleUtils.MoodleQuizRestriction.class);
+
+                return toSEBRestriction(exam, moodleRestriction);
+            } catch (final Exception e) {
+                throw new RuntimeException("Unexpected error while get SEB restriction: ", e);
+            }
+        });
     }
 
     @Override
     public Result<Exam> releaseSEBClientRestriction(final Exam exam) {
-        // TODO Auto-generated method stub
-        return null;
+        return Result.tryCatch(() -> {
+            if (log.isDebugEnabled()) {
+                log.debug("Release SEB Client restriction on exam: {}", exam);
+            }
+
+            final String quizId = MoodleUtils.getQuizId(exam.getExternalId());
+            final LinkedMultiValueMap<String, String> addQuery = new LinkedMultiValueMap<>();
+            addQuery.add(ATTRIBUTE_QUIZ_ID, quizId);
+
+            final String quitLink = this.examConfigurationValueService.getQuitLink(exam.id);
+            final String quitSecret = this.examConfigurationValueService.getQuitSecret(exam.id);
+
+            final LinkedMultiValueMap<String, String> queryAttributes = new LinkedMultiValueMap<>();
+            queryAttributes.add(ATTRIBUTE_QUIT_URL, quitLink);
+            queryAttributes.add(ATTRIBUTE_QUIT_SECRET, quitSecret);
+
+            this.restTemplate.callMoodleAPIFunction(
+                    RESTRICTION_SET_FUNCTION_NAME,
+                    addQuery,
+                    queryAttributes);
+
+            return exam;
+        });
+    }
+
+    private SEBRestriction toSEBRestriction(final Exam exam, final MoodleQuizRestriction moodleRestriction) {
+        final List<String> configKeys = Arrays.asList(StringUtils.split(
+                moodleRestriction.config_keys,
+                Constants.LIST_SEPARATOR));
+        final List<String> browserExamKeys = Arrays.asList(StringUtils.split(
+                moodleRestriction.browser_exam_keys,
+                Constants.LIST_SEPARATOR));
+        final Map<String, String> additionalProperties = new HashMap<>();
+        additionalProperties.put(ATTRIBUTE_QUIT_URL, moodleRestriction.quit_link);
+
+        final String additionalBEK = exam.getAdditionalAttribute(
+                SEBRestrictionService.ADDITIONAL_ATTR_ALTERNATIVE_SEB_BEK);
+
+        if (additionalBEK != null) {
+            browserExamKeys.remove(additionalBEK);
+        }
+
+        return new SEBRestriction(
+                exam.id,
+                configKeys,
+                browserExamKeys,
+                additionalProperties);
+    }
+
+    private Result<MoodleAPIRestTemplate> getRestTemplate() {
+        if (this.restTemplate == null) {
+            final Result<MoodleAPIRestTemplate> templateRequest = this.restTemplateFactory
+                    .createRestTemplate();
+            if (templateRequest.hasError()) {
+                return templateRequest;
+            } else {
+                this.restTemplate = templateRequest.get();
+            }
+        }
+
+        return Result.of(this.restTemplate);
     }
 
 }

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/moodle/plugin/MooldePluginLmsAPITemplateFactory.java

@@ -24,10 +24,13 @@ import ch.ethz.seb.sebserver.gbl.client.ClientCredentialService;
 import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetup.LmsType;
 import ch.ethz.seb.sebserver.gbl.profile.WebServiceProfile;
 import ch.ethz.seb.sebserver.gbl.util.Result;
+import ch.ethz.seb.sebserver.webservice.servicelayer.exam.ExamConfigurationValueService;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.APITemplateDataSupplier;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.LmsAPITemplate;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.LmsAPITemplateFactory;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.LmsAPITemplateAdapter;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MockupRestTemplateFactory;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodlePluginCheck;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleRestTemplateFactory;
 
 @Lazy
@@ -41,6 +44,7 @@ public class MooldePluginLmsAPITemplateFactory implements LmsAPITemplateFactory
     private final AsyncService asyncService;
     private final Environment environment;
     private final ClientCredentialService clientCredentialService;
+    private final ExamConfigurationValueService examConfigurationValueService;
     private final ClientHttpRequestFactoryService clientHttpRequestFactoryService;
     private final ApplicationContext applicationContext;
     private final String[] alternativeTokenRequestPaths;
@@ -52,6 +56,7 @@ public class MooldePluginLmsAPITemplateFactory implements LmsAPITemplateFactory
             final AsyncService asyncService,
             final Environment environment,
             final ClientCredentialService clientCredentialService,
+            final ExamConfigurationValueService examConfigurationValueService,
             final ClientHttpRequestFactoryService clientHttpRequestFactoryService,
             final ApplicationContext applicationContext,
             @Value("${sebserver.webservice.lms.moodle.api.token.request.paths:}") final String alternativeTokenRequestPaths) {
@@ -62,6 +67,7 @@ public class MooldePluginLmsAPITemplateFactory implements LmsAPITemplateFactory
         this.asyncService = asyncService;
         this.environment = environment;
         this.clientCredentialService = clientCredentialService;
+        this.examConfigurationValueService = examConfigurationValueService;
         this.clientHttpRequestFactoryService = clientHttpRequestFactoryService;
         this.applicationContext = applicationContext;
         this.alternativeTokenRequestPaths = (alternativeTokenRequestPaths != null)
@@ -78,19 +84,27 @@ public class MooldePluginLmsAPITemplateFactory implements LmsAPITemplateFactory
     public Result<LmsAPITemplate> create(final APITemplateDataSupplier apiTemplateDataSupplier) {
         return Result.tryCatch(() -> {
 
-            final MoodleRestTemplateFactory moodleRestTemplateFactory = new MoodleRestTemplateFactory(
-                    this.jsonMapper,
-                    apiTemplateDataSupplier,
-                    this.clientCredentialService,
-                    this.clientHttpRequestFactoryService,
-                    this.alternativeTokenRequestPaths);
+//            final MoodleRestTemplateFactory moodleRestTemplateFactory = new MoodleRestTemplateFactoryImpl(
+//                    this.jsonMapper,
+//                    apiTemplateDataSupplier,
+//                    this.clientCredentialService,
+//                    this.clientHttpRequestFactoryService,
+//                    this.alternativeTokenRequestPaths);
+
+            final MoodleRestTemplateFactory moodleRestTemplateFactory =
+                    new MockupRestTemplateFactory(apiTemplateDataSupplier);
 
             final MoodlePluginCourseAccess moodlePluginCourseAccess = new MoodlePluginCourseAccess(
                     this.jsonMapper,
+                    this.asyncService,
                     moodleRestTemplateFactory,
-                    this.cacheManager);
+                    this.cacheManager,
+                    this.environment);
 
-            final MoodlePluginCourseRestriction moodlePluginCourseRestriction = new MoodlePluginCourseRestriction();
+            final MoodlePluginCourseRestriction moodlePluginCourseRestriction = new MoodlePluginCourseRestriction(
+                    this.jsonMapper,
+                    moodleRestTemplateFactory,
+                    this.examConfigurationValueService);
 
             return new LmsAPITemplateAdapter(
                     this.asyncService,

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/olat/OlatLmsAPITemplate.java

@@ -47,7 +47,6 @@ import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetup;
 import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetup.LmsType;
 import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetupTestResult;
 import ch.ethz.seb.sebserver.gbl.model.user.ExamineeAccountDetails;
-import ch.ethz.seb.sebserver.gbl.util.Cryptor;
 import ch.ethz.seb.sebserver.gbl.util.Result;
 import ch.ethz.seb.sebserver.gbl.util.Utils;
 import ch.ethz.seb.sebserver.webservice.servicelayer.dao.FilterMap;
@@ -68,14 +67,10 @@ public class OlatLmsAPITemplate extends AbstractCachedCourseAccess implements Lm
     private static final String ADDITIONAL_ATTR_QUIT_LINK = "ADDITIONAL_ATTR_QUIT_LINK";
     private static final String ADDITIONAL_ATTR_QUIT_SECRET = "ADDITIONAL_ATTR_QUIT_SECRET";
 
-    private static final String CONFIG_ATTR_NAME_QUIT_LINK = "quitURL";
-    private static final String CONFIG_ATTR_NAME_QUIT_SECRET = "hashedQuitPassword";
-
     private final ClientHttpRequestFactoryService clientHttpRequestFactoryService;
     private final ClientCredentialService clientCredentialService;
     private final APITemplateDataSupplier apiTemplateDataSupplier;
     private final ExamConfigurationValueService examConfigurationValueService;
-    private final Cryptor cryptor;
     private final Long lmsSetupId;
 
     private OlatLmsRestTemplate cachedRestTemplate;
@@ -85,7 +80,6 @@ public class OlatLmsAPITemplate extends AbstractCachedCourseAccess implements Lm
             final ClientCredentialService clientCredentialService,
             final APITemplateDataSupplier apiTemplateDataSupplier,
             final ExamConfigurationValueService examConfigurationValueService,
-            final Cryptor cryptor,
             final CacheManager cacheManager) {
 
         super(cacheManager);
@@ -94,7 +88,6 @@ public class OlatLmsAPITemplate extends AbstractCachedCourseAccess implements Lm
         this.clientCredentialService = clientCredentialService;
         this.apiTemplateDataSupplier = apiTemplateDataSupplier;
         this.examConfigurationValueService = examConfigurationValueService;
-        this.cryptor = cryptor;
         this.lmsSetupId = apiTemplateDataSupplier.getLmsSetup().id;
     }
 
@@ -357,8 +350,8 @@ public class OlatLmsAPITemplate extends AbstractCachedCourseAccess implements Lm
         final RestrictionDataPost post = new RestrictionDataPost();
         post.browserExamKeys = new ArrayList<>(restriction.browserExamKeys);
         post.configKeys = new ArrayList<>(restriction.configKeys);
-        post.quitLink = this.getQuitLink(restriction.examId);
-        post.quitSecret = this.getQuitSecret(restriction.examId);
+        post.quitLink = this.examConfigurationValueService.getQuitLink(restriction.examId);
+        post.quitSecret = this.examConfigurationValueService.getQuitSecret(restriction.examId);
         final RestrictionData r =
                 this.apiPost(restTemplate, url, post, RestrictionDataPost.class, RestrictionData.class);
         return new SEBRestriction(Long.valueOf(id), r.configKeys, r.browserExamKeys, new HashMap<String, String>());
@@ -476,43 +469,4 @@ public class OlatLmsAPITemplate extends AbstractCachedCourseAccess implements Lm
         });
     }
 
-    private String getQuitSecret(final Long examId) {
-        try {
-
-            final String quitSecretEncrypted = this.examConfigurationValueService.getMappedDefaultConfigAttributeValue(
-                    examId,
-                    CONFIG_ATTR_NAME_QUIT_SECRET);
-
-            if (StringUtils.isNotEmpty(quitSecretEncrypted)) {
-                try {
-
-                    return this.cryptor
-                            .decrypt(quitSecretEncrypted)
-                            .getOrThrow()
-                            .toString();
-
-                } catch (final Exception e) {
-                    log.error("Failed to decrypt quitSecret: ", e);
-                }
-            }
-        } catch (final Exception e) {
-            log.error("Failed to get SEB restriction with quit secret: ", e);
-        }
-
-        return null;
-    }
-
-    private String getQuitLink(final Long examId) {
-        try {
-
-            return this.examConfigurationValueService.getMappedDefaultConfigAttributeValue(
-                    examId,
-                    CONFIG_ATTR_NAME_QUIT_LINK);
-
-        } catch (final Exception e) {
-            log.error("Failed to get SEB restriction with quit link: ", e);
-            return null;
-        }
-    }
-
 }

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/olat/OlatLmsAPITemplateFactory.java

@@ -18,7 +18,6 @@ import ch.ethz.seb.sebserver.gbl.async.AsyncService;
 import ch.ethz.seb.sebserver.gbl.client.ClientCredentialService;
 import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetup.LmsType;
 import ch.ethz.seb.sebserver.gbl.profile.WebServiceProfile;
-import ch.ethz.seb.sebserver.gbl.util.Cryptor;
 import ch.ethz.seb.sebserver.gbl.util.Result;
 import ch.ethz.seb.sebserver.webservice.servicelayer.exam.ExamConfigurationValueService;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.APITemplateDataSupplier;
@@ -44,7 +43,6 @@ public class OlatLmsAPITemplateFactory implements LmsAPITemplateFactory {
     private final AsyncService asyncService;
     private final Environment environment;
     private final CacheManager cacheManager;
-    private final Cryptor cryptor;
 
     public OlatLmsAPITemplateFactory(
             final ClientHttpRequestFactoryService clientHttpRequestFactoryService,
@@ -52,8 +50,7 @@ public class OlatLmsAPITemplateFactory implements LmsAPITemplateFactory {
             final ExamConfigurationValueService examConfigurationValueService,
             final AsyncService asyncService,
             final Environment environment,
-            final CacheManager cacheManager,
-            final Cryptor cryptor) {
+            final CacheManager cacheManager) {
 
         this.clientHttpRequestFactoryService = clientHttpRequestFactoryService;
         this.clientCredentialService = clientCredentialService;
@@ -61,7 +58,6 @@ public class OlatLmsAPITemplateFactory implements LmsAPITemplateFactory {
         this.asyncService = asyncService;
         this.environment = environment;
         this.cacheManager = cacheManager;
-        this.cryptor = cryptor;
     }
 
     @Override
@@ -72,13 +68,14 @@ public class OlatLmsAPITemplateFactory implements LmsAPITemplateFactory {
     @Override
     public Result<LmsAPITemplate> create(final APITemplateDataSupplier apiTemplateDataSupplier) {
         return Result.tryCatch(() -> {
+
             final OlatLmsAPITemplate olatLmsAPITemplate = new OlatLmsAPITemplate(
                     this.clientHttpRequestFactoryService,
                     this.clientCredentialService,
                     apiTemplateDataSupplier,
                     this.examConfigurationValueService,
-                    this.cryptor,
                     this.cacheManager);
+
             return new LmsAPITemplateAdapter(
                     this.asyncService,
                     this.environment,

src/main/java/ch/ethz/seb/sebserver/webservice/servicelayer/session/impl/ExamUpdateHandler.java

@@ -38,7 +38,7 @@ import ch.ethz.seb.sebserver.webservice.servicelayer.dao.FilterMap;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.LmsAPIService;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.LmsAPITemplate;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.SEBRestrictionService;
-import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.legacy.MoodleCourseAccess;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleUtils;
 import ch.ethz.seb.sebserver.webservice.servicelayer.session.ExamFinishedEvent;
 import ch.ethz.seb.sebserver.webservice.servicelayer.session.ExamResetEvent;
 import ch.ethz.seb.sebserver.webservice.servicelayer.session.ExamStartedEvent;
@@ -402,7 +402,7 @@ class ExamUpdateHandler {
                     log.debug("Found formerName quiz name: {}", exam.name);
 
                     // get the course name identifier
-                    final String shortname = MoodleCourseAccess.getShortname(quizId);
+                    final String shortname = MoodleUtils.getShortname(quizId);
                     if (StringUtils.isNotBlank(shortname)) {
 
                         log.debug("Using short-name: {} for recovering", shortname);
@@ -412,7 +412,7 @@ class ExamUpdateHandler {
                                 .getOrThrow()
                                 .stream()
                                 .filter(quiz -> {
-                                    final String qShortName = MoodleCourseAccess.getShortname(quiz.id);
+                                    final String qShortName = MoodleUtils.getShortname(quiz.id);
                                     return qShortName != null && qShortName.equals(shortname);
                                 })
                                 .filter(quiz -> exam.name.equals(quiz.name))

src/main/java/ch/ethz/seb/sebserver/webservice/weblayer/api/ExamAPI_V1_Controller.java

@@ -51,6 +51,7 @@ import ch.ethz.seb.sebserver.gbl.profile.WebServiceProfile;
 import ch.ethz.seb.sebserver.gbl.util.Utils;
 import ch.ethz.seb.sebserver.webservice.servicelayer.dao.LmsSetupDAO;
 import ch.ethz.seb.sebserver.webservice.servicelayer.dao.SEBClientConfigDAO;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.SEBRestrictionService;
 import ch.ethz.seb.sebserver.webservice.servicelayer.session.ExamSessionService;
 import ch.ethz.seb.sebserver.webservice.servicelayer.session.SEBClientConnectionService;
 import ch.ethz.seb.sebserver.webservice.servicelayer.session.SEBClientSessionService;
@@ -479,7 +480,7 @@ public class ExamAPI_V1_Controller {
             return;
         }
         this.examSessionService.getRunningExam(examId)
-                .map(exam -> exam.getAdditionalAttribute(Exam.ADDITIONAL_ATTR_ALTERNATIVE_SEB_BEK))
+                .map(exam -> exam.getAdditionalAttribute(SEBRestrictionService.ADDITIONAL_ATTR_ALTERNATIVE_SEB_BEK))
                 .onSuccess(bek -> response.setHeader(API.EXAM_API_EXAM_ALT_BEK, bek));
     }
 

src/test/java/ch/ethz/seb/sebserver/webservice/integration/api/admin/OlatLmsAPITemplateTest.java

@@ -29,7 +29,6 @@ import ch.ethz.seb.sebserver.gbl.model.exam.Exam.ExamStatus;
 import ch.ethz.seb.sebserver.gbl.model.exam.Exam.ExamType;
 import ch.ethz.seb.sebserver.gbl.model.exam.SEBRestriction;
 import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetup;
-import ch.ethz.seb.sebserver.gbl.util.Cryptor;
 import ch.ethz.seb.sebserver.webservice.servicelayer.exam.ExamConfigurationValueService;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.APITemplateDataSupplier;
 import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.olat.OlatLmsAPITemplate;
@@ -42,8 +41,6 @@ public class OlatLmsAPITemplateTest extends AdministrationAPIIntegrationTester {
     @Autowired
     private ExamConfigurationValueService examConfigurationValueService;
     @Autowired
-    private Cryptor cryptor;
-    @Autowired
     private CacheManager cacheManager;
 
     @Test
@@ -59,7 +56,6 @@ public class OlatLmsAPITemplateTest extends AdministrationAPIIntegrationTester {
                 null,
                 apiTemplateDataSupplier,
                 this.examConfigurationValueService,
-                this.cryptor,
                 this.cacheManager);
 
         Mockito.when(restTemplateMock.exchange(Mockito.any(), Mockito.any(), Mockito.any(),

src/test/java/ch/ethz/seb/sebserver/webservice/servicelayer/lms/impl/moodle/legacy/MoodleCourseAccessTest.java

@@ -29,8 +29,8 @@ import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetupTestResult;
 import ch.ethz.seb.sebserver.gbl.model.institution.LmsSetupTestResult.ErrorType;
 import ch.ethz.seb.sebserver.gbl.model.user.ExamineeAccountDetails;
 import ch.ethz.seb.sebserver.gbl.util.Result;
-import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleRestTemplateFactory;
-import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleRestTemplateFactory.MoodleAPIRestTemplateImpl;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleRestTemplateFactoryImpl;
+import ch.ethz.seb.sebserver.webservice.servicelayer.lms.impl.moodle.MoodleRestTemplateFactoryImpl.MoodleAPIRestTemplateImpl;
 
 public class MoodleCourseAccessTest {
 
@@ -42,7 +42,7 @@ public class MoodleCourseAccessTest {
     @Test
     public void testGetExamineeAccountDetails() {
 
-        final MoodleRestTemplateFactory moodleRestTemplateFactory = mock(MoodleRestTemplateFactory.class);
+        final MoodleRestTemplateFactoryImpl moodleRestTemplateFactory = mock(MoodleRestTemplateFactoryImpl.class);
         final MoodleAPIRestTemplateImpl moodleAPIRestTemplate = mock(MoodleAPIRestTemplateImpl.class);
         when(moodleRestTemplateFactory.createRestTemplate()).thenReturn(Result.of(moodleAPIRestTemplate));
         when(moodleAPIRestTemplate.callMoodleAPIFunction(
@@ -118,7 +118,7 @@ public class MoodleCourseAccessTest {
 
     @Test
     public void testInitAPIAccessError1() {
-        final MoodleRestTemplateFactory moodleRestTemplateFactory = mock(MoodleRestTemplateFactory.class);
+        final MoodleRestTemplateFactoryImpl moodleRestTemplateFactory = mock(MoodleRestTemplateFactoryImpl.class);
         when(moodleRestTemplateFactory.createRestTemplate()).thenReturn(Result.ofRuntimeError("Error1"));
         when(moodleRestTemplateFactory.test()).thenReturn(LmsSetupTestResult.ofOkay(LmsType.MOODLE));
 
@@ -138,7 +138,7 @@ public class MoodleCourseAccessTest {
 
     @Test
     public void testInitAPIAccessError2() {
-        final MoodleRestTemplateFactory moodleRestTemplateFactory = mock(MoodleRestTemplateFactory.class);
+        final MoodleRestTemplateFactoryImpl moodleRestTemplateFactory = mock(MoodleRestTemplateFactoryImpl.class);
         final MoodleAPIRestTemplateImpl moodleAPIRestTemplate = mock(MoodleAPIRestTemplateImpl.class);
         when(moodleRestTemplateFactory.createRestTemplate()).thenReturn(Result.of(moodleAPIRestTemplate));
         doThrow(RuntimeException.class).when(moodleAPIRestTemplate).testAPIConnection(any());
@@ -160,7 +160,7 @@ public class MoodleCourseAccessTest {
 
     @Test
     public void testInitAPIAccessOK() {
-        final MoodleRestTemplateFactory moodleRestTemplateFactory = mock(MoodleRestTemplateFactory.class);
+        final MoodleRestTemplateFactoryImpl moodleRestTemplateFactory = mock(MoodleRestTemplateFactoryImpl.class);
         final MoodleAPIRestTemplateImpl moodleAPIRestTemplate = mock(MoodleAPIRestTemplateImpl.class);
         when(moodleRestTemplateFactory.createRestTemplate()).thenReturn(Result.of(moodleAPIRestTemplate));
         when(moodleRestTemplateFactory.test()).thenReturn(LmsSetupTestResult.ofOkay(LmsType.MOODLE));