| /**************************************************************** |
| * Licensed to the Apache Software Foundation (ASF) under one * |
| * or more contributor license agreements. See the NOTICE file * |
| * distributed with this work for additional information * |
| * regarding copyright ownership. The ASF licenses this file * |
| * to you 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. * |
| ****************************************************************/ |
| |
| package org.apache.james.jmap.draft.model; |
| |
| import java.time.DateTimeException; |
| import java.time.ZonedDateTime; |
| import java.time.format.DateTimeFormatter; |
| import java.util.LinkedList; |
| import java.util.NoSuchElementException; |
| import java.util.Objects; |
| |
| import org.apache.james.jmap.draft.exceptions.MalformedContinuationTokenException; |
| |
| import com.google.common.base.Joiner; |
| import com.google.common.base.Preconditions; |
| import com.google.common.base.Splitter; |
| import com.google.common.base.Strings; |
| import com.google.common.collect.Lists; |
| |
| public class ContinuationToken implements SignedExpiringToken { |
| |
| public static final String SEPARATOR = "_"; |
| |
| public static Builder builder() { |
| return new Builder(); |
| } |
| |
| public static class Builder { |
| private String username; |
| private ZonedDateTime expirationDate; |
| private String signature; |
| |
| private Builder() { |
| |
| } |
| |
| public Builder username(String username) { |
| this.username = username; |
| return this; |
| } |
| |
| public Builder expirationDate(ZonedDateTime expirationDate) { |
| this.expirationDate = expirationDate; |
| return this; |
| } |
| |
| public Builder signature(String signature) { |
| this.signature = signature; |
| return this; |
| } |
| |
| public ContinuationToken build() { |
| return new ContinuationToken(username, expirationDate, signature); |
| } |
| } |
| |
| public static ContinuationToken fromString(String serializedToken) throws MalformedContinuationTokenException { |
| Preconditions.checkArgument(!Strings.isNullOrEmpty(serializedToken), "Serialized continuation token should not be null or empty"); |
| LinkedList<String> tokenParts = Lists.newLinkedList(Splitter.on(SEPARATOR).split(serializedToken)); |
| try { |
| return ContinuationToken.builder() |
| .signature(tokenParts.removeLast()) |
| .expirationDate(ZonedDateTime.parse(tokenParts.removeLast(), DateTimeFormatter.ISO_OFFSET_DATE_TIME)) |
| .username(Joiner.on(SEPARATOR).join(tokenParts)) |
| .build(); |
| } catch (NoSuchElementException | IllegalArgumentException e) { |
| throw new MalformedContinuationTokenException("Token " + serializedToken + " does not have enough parts", e); |
| } catch (DateTimeException e) { |
| throw new MalformedContinuationTokenException("Token " + serializedToken + " as an incorrect date", e); |
| } |
| } |
| |
| private final String username; |
| private final ZonedDateTime expirationDate; |
| private final String signature; |
| |
| public ContinuationToken(String username, ZonedDateTime expirationDate, String signature) { |
| Preconditions.checkNotNull(username); |
| Preconditions.checkArgument(! username.isEmpty()); |
| Preconditions.checkNotNull(expirationDate); |
| Preconditions.checkNotNull(signature); |
| this.username = username; |
| this.expirationDate = expirationDate; |
| this.signature = signature; |
| } |
| |
| public String getUsername() { |
| return username; |
| } |
| |
| @Override |
| public ZonedDateTime getExpirationDate() { |
| return expirationDate; |
| } |
| |
| @Override |
| public String getSignature() { |
| return signature; |
| } |
| |
| public String serialize() { |
| return getPayload() |
| + SEPARATOR |
| + signature; |
| } |
| |
| @Override |
| public String getPayload() { |
| return username |
| + SEPARATOR |
| + DateTimeFormatter.ISO_OFFSET_DATE_TIME.format(expirationDate); |
| } |
| |
| @Override |
| public String getSignedContent() { |
| return getPayload(); |
| } |
| |
| @Override |
| public boolean equals(Object other) { |
| if (other == null || getClass() != other.getClass()) { |
| return false; |
| } |
| ContinuationToken continuationToken = (ContinuationToken) other; |
| return Objects.equals(username, continuationToken.username) |
| && expirationDate.isEqual(continuationToken.expirationDate) |
| && Objects.equals(signature, continuationToken.signature); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(username, expirationDate, signature); |
| } |
| |
| @Override |
| public String toString() { |
| return "ContinuationToken{" + |
| "username='" + username + '\'' + |
| ", expirationDate=" + expirationDate + |
| ", signature='" + signature + '\'' + |
| '}'; |
| } |
| } |