seb-server/src/main/java/ch/ethz/seb/sebserver/webservice/WebserviceInfo.java

453 lines
17 KiB
Java

/*
* Copyright (c) 2019 ETH Zürich, IT Services
*
* 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;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.*;
import java.util.stream.Collectors;
import ch.ethz.seb.sebserver.gbl.api.API;
import ch.ethz.seb.sebserver.gbl.model.user.UserFeatures;
import ch.ethz.seb.sebserver.gbl.model.exam.SPSAPIAccessData;
import ch.ethz.seb.sebserver.webservice.servicelayer.authorization.FeatureService;
import org.apache.commons.lang3.BooleanUtils;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Lazy;
import org.springframework.core.env.Environment;
import org.springframework.stereotype.Service;
import org.springframework.web.util.UriComponentsBuilder;
import ch.ethz.seb.sebserver.gbl.Constants;
import ch.ethz.seb.sebserver.gbl.profile.WebServiceProfile;
import ch.ethz.seb.sebserver.gbl.util.Cryptor;
import ch.ethz.seb.sebserver.webservice.servicelayer.dao.WebserviceInfoDAO;
@Lazy
@Service
@WebServiceProfile
public class WebserviceInfo {
private static final Logger log = LoggerFactory.getLogger(WebserviceInfo.class);
private static final String VERSION_KEY = "sebserver.version";
private static final String WEB_SERVICE_TEST_PROPERTY = "sebserver.test.property";
private static final String WEB_SERVICE_SERVER_NAME_KEY = "sebserver.webservice.http.external.servername";
private static final String WEB_SERVICE_HTTP_SCHEME_KEY = "sebserver.webservice.http.external.scheme";
private static final String WEB_SERVICE_HTTP_PORT = "sebserver.webservice.http.external.port";
private static final String WEB_SERVICE_HOST_ADDRESS_KEY = "server.address";
private static final String WEB_SERVICE_SERVER_PORT_KEY = "server.port";
private static final String WEB_SERVICE_EXAM_API_DISCOVERY_ENDPOINT_KEY =
"sebserver.webservice.api.exam.endpoint.discovery";
private static final String WEB_SERVICE_EXTERNAL_ADDRESS_ALIAS = "sebserver.webservice.lms.address.alias";
private static final String WEB_SERVICE_CONTEXT_PATH = "server.servlet.context-path";
public static final String SEBSERVER_WEBSERVICE_AUTOLOGIN_ENDPOINT = "sebserver.webservice.autologin.endpoint";
public static final String WEB_SERVICE_GUI_AUTOLOGIN_URL_KEY = "sebserver.webservice.autologin.url";
private final String sebServerVersion;
private final String testProperty;
private final String httpScheme;
private final String hostAddress; // internal
private final String webserverName; // external
private final String serverPort; // internal
private final String webserverPort; // external
private final String discoveryEndpoint;
private final String contextPath;
private final String autoLoginEndpoint;
private final boolean isLightSetup;
private final String serverURLPrefix;
private final boolean isDistributed;
private final String webserviceUUID;
private final String guiAutologinURL;
private final long distributedUpdateInterval;
private Map<String, String> lmsExternalAddressAlias;
private final Set<String> activeProfiles;
private final WebserviceInfoDAO webserviceInfoDAO;
private final FeatureService featureService;
private boolean isMaster = false;
@Value("${sebserver.webservice.api.admin.accessTokenValiditySeconds:3600}")
private int adminAccessTokenValSec;
@Value("${sebserver.webservice.api.admin.refreshTokenValiditySeconds:-1}")
private int adminRefreshTokenValSec;
@Value("${sebserver.webservice.api.exam.accessTokenValiditySeconds:43200}")
private int examAPITokenValiditySeconds;
private final ScreenProctoringServiceBundle screenProctoringServiceBundle;
public WebserviceInfo(
final WebserviceInfoDAO webserviceInfoDAO,
final FeatureService featureService,
final Environment environment,
final Cryptor cryptor) {
this.webserviceInfoDAO = webserviceInfoDAO;
this.featureService = featureService;
this.sebServerVersion = environment.getRequiredProperty(VERSION_KEY);
this.testProperty = environment.getProperty(WEB_SERVICE_TEST_PROPERTY, "NOT_AVAILABLE");
this.httpScheme = environment.getRequiredProperty(WEB_SERVICE_HTTP_SCHEME_KEY);
this.hostAddress = environment.getRequiredProperty(WEB_SERVICE_HOST_ADDRESS_KEY);
this.webserverName = environment.getProperty(WEB_SERVICE_SERVER_NAME_KEY, "");
this.serverPort = environment.getRequiredProperty(WEB_SERVICE_SERVER_PORT_KEY);
this.webserverPort = environment.getProperty(WEB_SERVICE_HTTP_PORT);
this.discoveryEndpoint = environment.getRequiredProperty(WEB_SERVICE_EXAM_API_DISCOVERY_ENDPOINT_KEY);
this.contextPath = environment.getProperty(WEB_SERVICE_CONTEXT_PATH, "");
this.webserviceUUID = UUID.randomUUID().toString()
+ Constants.UNDERLINE
+ this.sebServerVersion;
this.autoLoginEndpoint = environment.getProperty(
SEBSERVER_WEBSERVICE_AUTOLOGIN_ENDPOINT,
"/auto_login");
this.distributedUpdateInterval = environment.getProperty(
"sebserver.webservice.distributed.updateInterval",
Long.class,
2000L);
this.activeProfiles = new HashSet<>(Arrays.asList(environment.getActiveProfiles()));
if (StringUtils.isEmpty(this.webserverName)) {
log.warn("NOTE: External server name, property : 'sebserver.webservice.http.external.servername' "
+ "is not set from configuration. The external server name is set to the server address!");
}
final UriComponentsBuilder builder = UriComponentsBuilder.newInstance()
.scheme(this.httpScheme)
.host((StringUtils.isNotBlank(this.webserverName))
? this.webserverName
: this.hostAddress);
if (StringUtils.isNotBlank(this.webserverPort)) {
builder.port(this.webserverPort);
}
if (StringUtils.isNotBlank(this.contextPath) && !this.contextPath.equals("/")) {
builder.path(this.contextPath);
}
this.serverURLPrefix = builder.toUriString();
String guiAutologinURL = environment.getProperty(WEB_SERVICE_GUI_AUTOLOGIN_URL_KEY, builder.toUriString());
if (StringUtils.isBlank(guiAutologinURL)) {
guiAutologinURL = builder.toUriString();
}
this.guiAutologinURL = guiAutologinURL;
this.isLightSetup = BooleanUtils.toBoolean(environment.getProperty(
"sebserver.webservice.light.setup",
Constants.FALSE_STRING));
this.isDistributed = BooleanUtils.toBoolean(environment.getProperty(
"sebserver.webservice.distributed",
Constants.FALSE_STRING));
final String addressAlias = environment.getProperty(WEB_SERVICE_EXTERNAL_ADDRESS_ALIAS, "");
if (StringUtils.isNotBlank(addressAlias)) {
try {
final String[] aliass = StringUtils.split(addressAlias, Constants.LIST_SEPARATOR);
final Map<String, String> mapping = new LinkedHashMap<>();
for (final String alias : aliass) {
final String[] nameValue =
StringUtils.split(alias, Constants.FORM_URL_ENCODED_NAME_VALUE_SEPARATOR);
mapping.put(nameValue[0], nameValue[1]);
}
this.lmsExternalAddressAlias = Collections.unmodifiableMap(mapping);
} catch (final Exception e) {
log.error("Failed to parse sebserver.webservice.lms.address.alias: ", e);
this.lmsExternalAddressAlias = Collections.emptyMap();
}
} else {
this.lmsExternalAddressAlias = Collections.emptyMap();
}
final boolean spsEnabled = BooleanUtils.toBoolean(environment.getProperty(
"sebserver.feature.exam.seb.screenProctoring.enabled",
Constants.FALSE_STRING));
final boolean spsBundled = BooleanUtils.toBoolean(environment.getProperty(
"sebserver.feature.exam.seb.screenProctoring.bundled",
Constants.FALSE_STRING));
if (spsEnabled && spsBundled) {
this.screenProctoringServiceBundle = new ScreenProctoringServiceBundle(
environment.getProperty("sebserver.feature.exam.seb.screenProctoring.bundled.url"),
environment.getProperty("sebserver.feature.exam.seb.screenProctoring.bundled.clientId"),
cryptor.encrypt(
environment.getProperty("sebserver.feature.exam.seb.screenProctoring.bundled.clientPassword"))
.getOrThrow(),
environment.getProperty("sebserver.feature.exam.seb.screenProctoring.bundled.sebserveraccount.username"),
cryptor.encrypt(environment
.getProperty("sebserver.feature.exam.seb.screenProctoring.bundled.sebserveraccount.password"))
.getOrThrow());
} else {
this.screenProctoringServiceBundle = new ScreenProctoringServiceBundle();
}
}
public Map<String, Boolean> configuredFeatures() {
return new TreeMap<>( Arrays.stream(UserFeatures.Feature.values()).collect(Collectors.toMap(
f -> f.featureName,
featureService::isEnabledByConfig
)));
}
public boolean isMaster() {
return this.isMaster;
}
public void updateMaster() {
this.isMaster = this.webserviceInfoDAO.isMaster(this.getWebserviceUUID());
}
public String getWebserviceUUID() {
return this.webserviceUUID;
}
public String getSEBServerVersion() {
return this.sebServerVersion;
}
public String getTestProperty() {
return this.testProperty;
}
public boolean hasProfile(final String profile) {
return this.activeProfiles.contains(profile);
}
public String getHttpScheme() {
return this.httpScheme;
}
public String getHostAddress() {
return this.hostAddress;
}
public String getWebserviceDomainName() {
return this.webserverName;
}
public String getServerPort() {
return this.serverPort;
}
public String getServerExternalPort() {
return this.webserverPort;
}
public Object getContextPath() {
return this.contextPath;
}
public String getDiscoveryEndpoint() {
return this.discoveryEndpoint;
}
public String getAutoLoginEndpoint() {
return autoLoginEndpoint;
}
public String getDiscoveryEndpointAddress() {
return this.serverURLPrefix + this.discoveryEndpoint;
}
public long getDistributedUpdateInterval() {
return this.distributedUpdateInterval;
}
public ScreenProctoringServiceBundle getScreenProctoringServiceBundle() {
return this.screenProctoringServiceBundle;
}
public String getLocalHostName() {
try {
return InetAddress.getLocalHost().getHostName();
} catch (final UnknownHostException e) {
log.error("Failed to get local host name: {}", e.getMessage());
return Constants.EMPTY_NOTE;
}
}
public String getLocalHostAddress() {
try {
return InetAddress.getLocalHost().getHostAddress();
} catch (final UnknownHostException e) {
log.error("Failed to get local host address: {}", e.getMessage());
return Constants.EMPTY_NOTE;
}
}
public String getLoopbackHostName() {
return InetAddress.getLoopbackAddress().getHostName();
}
public String getLoopbackHostAddress() {
return InetAddress.getLoopbackAddress().getHostAddress();
}
/** Get the server URL prefix in the form of;
* [scheme{http|https}]://[server-address{DNS-name|IP}]:[port]
* <p>
* E.g.: https://seb.server.ch:8080
*
* @return the server URL prefix */
public String getExternalServerURL() {
return this.serverURLPrefix;
}
public String getGUIAutologinURL() {
return this.guiAutologinURL;
}
public String getOAuthTokenURI() {
return getExternalServerURL() + API.OAUTH_TOKEN_ENDPOINT;
}
public boolean isLightSetup() {
return this.isLightSetup;
}
public boolean isDistributed() {
return this.isDistributed;
}
public Map<String, String> getLmsExternalAddressAlias() {
return this.lmsExternalAddressAlias;
}
public String getLmsExternalAddressAlias(final String internalAddress) {
return this.lmsExternalAddressAlias
.entrySet()
.stream()
.filter(entry -> internalAddress.contains(entry.getKey()))
.findFirst()
.map(Map.Entry::getValue)
.orElse(null);
}
public int getAdminAccessTokenValSec() {
return this.adminAccessTokenValSec;
}
public int getAdminRefreshTokenValSec() {
return this.adminRefreshTokenValSec;
}
public int getExamAPITokenValiditySeconds() {
return this.examAPITokenValiditySeconds;
}
@Override
public String toString() {
final StringBuilder builder = new StringBuilder();
builder.append("WebserviceInfo [testProperty=");
builder.append(this.testProperty);
builder.append(", httpScheme=");
builder.append(this.httpScheme);
builder.append(", hostAddress=");
builder.append(this.hostAddress);
builder.append(", webserverName=");
builder.append(this.webserverName);
builder.append(", serverPort=");
builder.append(this.serverPort);
builder.append(", webserverPort=");
builder.append(this.webserverPort);
builder.append(", discoveryEndpoint=");
builder.append(this.discoveryEndpoint);
builder.append(", serverURLPrefix=");
builder.append(this.serverURLPrefix);
builder.append(", isDistributed=");
builder.append(this.isDistributed);
builder.append(", lmsExternalAddressAlias=");
builder.append(this.lmsExternalAddressAlias);
builder.append("]");
return builder.toString();
}
public static final class ScreenProctoringServiceBundle implements SPSAPIAccessData {
public final boolean bundled;
public final String serviceURL;
public final String clientId;
public final CharSequence clientSecret;
public final String apiAccountName;
public final CharSequence apiAccountPassword;
public ScreenProctoringServiceBundle(
final String serviceURL,
final String clientId,
final CharSequence clientSecret,
final String apiAccountName,
final CharSequence apiAccountPassword) {
this.bundled = true;
this.serviceURL = serviceURL;
this.clientId = clientId;
this.clientSecret = clientSecret;
this.apiAccountName = apiAccountName;
this.apiAccountPassword = apiAccountPassword;
}
public ScreenProctoringServiceBundle() {
this.bundled = false;
this.serviceURL = null;
this.clientId = null;
this.clientSecret = null;
this.apiAccountName = null;
this.apiAccountPassword = null;
}
@Override
public Long getExamId() {
return null;
}
@Override
public String getSpsServiceURL() {
return serviceURL;
}
@Override
public String getSpsAPIKey() {
return clientId;
}
@Override
public CharSequence getSpsAPISecret() {
return clientSecret;
}
@Override
public String getSpsAccountId() {
return apiAccountName;
}
@Override
public CharSequence getSpsAccountPassword() {
return apiAccountPassword;
}
@Override
public String toString() {
final StringBuilder builder = new StringBuilder();
builder.append("ScreenProctoringServiceBundle [bundled=");
builder.append(this.bundled);
builder.append(", serviceURL=");
builder.append(this.serviceURL);
builder.append(", clientId=");
builder.append(this.clientId);
builder.append(", apiAccountName=");
builder.append(this.apiAccountName);
builder.append("]");
return builder.toString();
}
}
}