001/*-
002 * #%L
003 * HAPI FHIR Subscription Server
004 * %%
005 * Copyright (C) 2014 - 2024 Smile CDR, Inc.
006 * %%
007 * Licensed under the Apache License, Version 2.0 (the "License");
008 * you may not use this file except in compliance with the License.
009 * You may obtain a copy of the License at
010 *
011 *      http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 * #L%
019 */
020package ca.uhn.fhir.jpa.subscription.submit.interceptor.validator;
021
022import ca.uhn.fhir.i18n.Msg;
023import ca.uhn.fhir.rest.server.exceptions.UnprocessableEntityException;
024import jakarta.annotation.Nonnull;
025
026import java.util.regex.Matcher;
027import java.util.regex.Pattern;
028import java.util.regex.PatternSyntaxException;
029
030public class RegexEndpointUrlValidationStrategy implements RestHookChannelValidator.IEndpointUrlValidationStrategy {
031
032        private final Pattern myEndpointUrlValidationPattern;
033
034        public RegexEndpointUrlValidationStrategy(@Nonnull String theEndpointUrlValidationRegex) {
035                try {
036                        myEndpointUrlValidationPattern = Pattern.compile(theEndpointUrlValidationRegex);
037                } catch (PatternSyntaxException e) {
038                        throw new IllegalArgumentException(
039                                        Msg.code(2546) + " invalid synthax for provided regex " + theEndpointUrlValidationRegex);
040                }
041        }
042
043        @Override
044        public void validateEndpointUrl(String theEndpointUrl) {
045                Matcher matcher = myEndpointUrlValidationPattern.matcher(theEndpointUrl);
046
047                if (!matcher.matches()) {
048                        throw new UnprocessableEntityException(
049                                        Msg.code(2545) + "Failed validation for endpoint URL: " + theEndpointUrl);
050                }
051        }
052}