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152
...ain/java/eu/europa/ec/dgc/gateway/connector/DgcGatewayTrustedIssuerDownloadConnector.java
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| /*- | ||
| * ---license-start | ||
| * WHO Digital Documentation Covid Certificate Gateway Service / ddcc-gateway-lib | ||
| * --- | ||
| * Copyright (C) 2022 T-Systems International GmbH and all other contributors | ||
| * --- | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * ---license-end | ||
| */ | ||
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| package eu.europa.ec.dgc.gateway.connector; | ||
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| import eu.europa.ec.dgc.gateway.connector.config.DgcGatewayConnectorConfigProperties; | ||
| import eu.europa.ec.dgc.gateway.connector.model.QueryParameter; | ||
| import eu.europa.ec.dgc.gateway.connector.model.TrustedIssuer; | ||
| import java.io.Serializable; | ||
| import java.security.Security; | ||
| import java.time.LocalDateTime; | ||
| import java.time.temporal.ChronoUnit; | ||
| import java.util.ArrayList; | ||
| import java.util.Collections; | ||
| import java.util.HashMap; | ||
| import java.util.List; | ||
| import javax.annotation.PostConstruct; | ||
| import lombok.Getter; | ||
| import lombok.RequiredArgsConstructor; | ||
| import lombok.extern.slf4j.Slf4j; | ||
| import org.bouncycastle.jce.provider.BouncyCastleProvider; | ||
| import org.springframework.beans.factory.config.ConfigurableBeanFactory; | ||
| import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty; | ||
| import org.springframework.context.annotation.Lazy; | ||
| import org.springframework.context.annotation.Scope; | ||
| import org.springframework.scheduling.annotation.EnableScheduling; | ||
| import org.springframework.stereotype.Service; | ||
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| @ConditionalOnProperty("dgc.gateway.connector.enabled") | ||
| @Lazy | ||
| @Service | ||
| @Scope(ConfigurableBeanFactory.SCOPE_SINGLETON) | ||
| @RequiredArgsConstructor | ||
| @EnableScheduling | ||
| @Slf4j | ||
| public class DgcGatewayTrustedIssuerDownloadConnector { | ||
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| private final DgcGatewayConnectorUtils connectorUtils; | ||
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| private final DgcGatewayConnectorConfigProperties properties; | ||
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| @Getter | ||
| private String status = null; | ||
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| @Getter | ||
| private LocalDateTime lastUpdated = null; | ||
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| private List<TrustedIssuer> trustedIssuers = new ArrayList<>(); | ||
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| private final HashMap<QueryParameter<? extends Serializable>, List<? extends Serializable>> queryParameterMap = | ||
| new HashMap<>(); | ||
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| @PostConstruct | ||
| void init() { | ||
| Security.addProvider(new BouncyCastleProvider()); | ||
| } | ||
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| /** | ||
| * Set Query Params to filter requests to Gateway. If an entry for given Key already exists it will be overridden. | ||
| * | ||
| * @param queryParameter The Query Parameter | ||
| * @param value Values to filter for. | ||
| */ | ||
| public <T extends Serializable> void setQueryParameter(QueryParameter<T> queryParameter, T value) { | ||
| setQueryParameter(queryParameter, List.of(value)); | ||
| } | ||
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| /** | ||
| * Set Query Params to filter requests to Gateway. If an entry for given Key already exists it will be overridden. | ||
| * | ||
| * @param queryParameter The Query Parameter | ||
| * @param values List of values (filtering is additive, e.g.: Providing values "CSCA" and "UPLOAD" will | ||
| * result in a list of "CSCA" and "UPLOAD" certificates with at least one matching property. | ||
| */ | ||
| public <T extends Serializable> void setQueryParameter(QueryParameter<T> queryParameter, List<T> values) { | ||
| if (!queryParameter.getArrayValue() && values.size() > 1) { | ||
| throw new IllegalArgumentException("Only one value is allowed for non-array query parameters."); | ||
| } | ||
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| // Check if Key will be added or value has changed if key already exists | ||
| if ((!queryParameterMap.containsKey(queryParameter)) | ||
| || queryParameterMap.containsKey(queryParameter) | ||
| && queryParameterMap.get(queryParameter).hashCode() != values.hashCode()) { | ||
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| // value has changed, invalidate cache | ||
| lastUpdated = null; | ||
| } | ||
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| queryParameterMap.put(queryParameter, values); | ||
| } | ||
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| /** | ||
| * Resets the Query Params. Cache will also be invalidated. | ||
| */ | ||
| public void resetQueryParameter() { | ||
| queryParameterMap.clear(); | ||
| lastUpdated = null; | ||
| } | ||
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| /** | ||
| * Gets the list of downloaded and validated TrustedIssuers. | ||
| * This call will return a cached list if caching is enabled. | ||
| * If cache is outdated a refreshed list will be returned. | ||
| * | ||
| * @return List of {@link TrustedIssuer} | ||
| */ | ||
| public List<TrustedIssuer> getTrustedIssuers() { | ||
| updateIfRequired(); | ||
| return Collections.unmodifiableList(trustedIssuers); | ||
| } | ||
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| private synchronized void updateIfRequired() { | ||
| if (lastUpdated == null | ||
| || ChronoUnit.SECONDS.between(lastUpdated, LocalDateTime.now()) >= properties.getMaxCacheAge()) { | ||
| log.info("Maximum age of cache reached. Fetching new TrustList from DGCG."); | ||
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| try { | ||
| // Fetching TrustedIssuers | ||
| trustedIssuers = connectorUtils.fetchTrustedIssuersAndVerifyByTrustAnchor(queryParameterMap); | ||
| log.info("TrustedIssuers contains {} entries", trustedIssuers.size()); | ||
| status = null; | ||
| } catch (DgcGatewayConnectorUtils.DgcGatewayConnectorException e) { | ||
| log.error("Failed to Download Trusted Certificates: {} - {}", e.getHttpStatusCode(), e.getMessage()); | ||
| status = "Download Failed: " + e.getHttpStatusCode() + " - " + e.getMessage(); | ||
| } | ||
| } else { | ||
| log.debug("Cache needs no refresh."); | ||
| } | ||
| } | ||
|
|
||
| } |
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