Java tutorial
/* * The MIT License * * Copyright 2016 Ahseya. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package com.github.horrorho.inflatabledonkey.data.backup; import com.dd.plist.NSData; import com.dd.plist.NSDate; import com.dd.plist.NSDictionary; import com.dd.plist.NSNumber; import com.dd.plist.NSObject; import com.dd.plist.NSString; import com.github.horrorho.inflatabledonkey.protobuf.CloudKit; import com.github.horrorho.inflatabledonkey.util.NSDictionaries; import java.time.Instant; import java.util.Date; import java.util.Objects; import java.util.Optional; import net.jcip.annotations.Immutable; import org.bouncycastle.util.Arrays; import org.bouncycastle.util.encoders.Hex; /** * * @author Ahseya */ @Immutable public final class Asset extends AbstractRecord { private final AssetID assetID; private final Optional<Integer> protectionClass; private final Optional<Integer> size; private final Optional<Integer> fileType; private final Optional<Instant> downloadTokenExpiration; private final Optional<String> dsPrsID; private final Optional<String> contentBaseURL; private final Optional<byte[]> fileChecksum; private final Optional<byte[]> fileSignature; private final Optional<byte[]> keyEncryptionKey; private final Optional<NSDictionary> encryptedAttributes; private final Optional<CloudKit.Asset> asset; Asset(CloudKit.Record record, AssetID assetID, Optional<Integer> protectionClass, Optional<Integer> size, Optional<Integer> fileType, Optional<Instant> downloadTokenExpiration, Optional<String> dsPrsID, Optional<String> contentBaseURL, Optional<byte[]> fileChecksum, Optional<byte[]> fileSignature, Optional<byte[]> keyEncryptionKey, Optional<byte[]> encryptedAttributes, Optional<CloudKit.Asset> asset) { super(record); this.assetID = Objects.requireNonNull(assetID, "assetID"); this.protectionClass = Objects.requireNonNull(protectionClass, "protectionClass"); this.size = Objects.requireNonNull(size, "size"); this.fileType = Objects.requireNonNull(fileType, "fileType"); this.downloadTokenExpiration = Objects.requireNonNull(downloadTokenExpiration, "downloadTokenExpiration"); this.dsPrsID = Objects.requireNonNull(dsPrsID, "dsPrsID"); this.contentBaseURL = Objects.requireNonNull(contentBaseURL, "contentBaseURL"); this.fileChecksum = Objects.requireNonNull(fileChecksum, "fileChecksum"); this.fileSignature = Objects.requireNonNull(fileSignature, "fileSignature"); this.keyEncryptionKey = Objects.requireNonNull(keyEncryptionKey, "keyEncryptionKey"); this.encryptedAttributes = encryptedAttributes.flatMap(NSDictionaries::parse); this.asset = Objects.requireNonNull(asset, "asset"); } public AssetID getAssetID() { return assetID; } public Optional<Integer> protectionClass() { return protectionClass; } public Optional<Integer> size() { return size; } public Optional<Integer> fileType() { return fileType; } public Optional<Instant> downloadTokenExpiration() { return downloadTokenExpiration; } public Optional<String> dsPrsID() { return dsPrsID; } public Optional<String> contentBaseURL() { return contentBaseURL; } public Optional<byte[]> fileChecksum() { return fileChecksum.map(bs -> Arrays.copyOf(bs, bs.length)); } public Optional<byte[]> fileSignature() { return fileSignature.map(bs -> Arrays.copyOf(bs, bs.length)); } public Optional<byte[]> keyEncryptionKey() { return keyEncryptionKey.map(bs -> Arrays.copyOf(bs, bs.length)); } <T extends NSObject> Optional<T> encryptedAttribute(String key, Class<T> to) { return encryptedAttributes.flatMap(e -> NSDictionaries.as(e, key, to)); } public Optional<String> domain() { return encryptedAttribute("domain", NSString.class).map(NSString::getContent); } public Optional<String> relativePath() { return encryptedAttribute("relativePath", NSString.class).map(NSString::getContent); } public Optional<Instant> modified() { return encryptedAttribute("domain", NSDate.class).map(NSDate::getDate).map(Date::toInstant); } public Optional<Instant> birth() { return encryptedAttribute("birth", NSDate.class).map(NSDate::getDate).map(Date::toInstant); } public Optional<Instant> statusChanged() { return encryptedAttribute("statusChanged", NSDate.class).map(NSDate::getDate).map(Date::toInstant); } public Optional<Integer> userID() { return encryptedAttribute("userID", NSNumber.class).map(NSNumber::intValue); } public Optional<Integer> groupID() { return encryptedAttribute("groupID", NSNumber.class).map(NSNumber::intValue); } public Optional<Integer> mode() { return encryptedAttribute("mode", NSNumber.class).map(NSNumber::intValue); } public Optional<byte[]> encryptionKey() { return encryptedAttribute("encryptionKey", NSData.class).map(NSData::bytes); } public Optional<Integer> attributeSize() { return encryptedAttribute("size", NSNumber.class).map(NSNumber::intValue); } public Optional<CloudKit.Asset> asset() { return asset; } @Override public String toString() { return "Asset{" + "assetID=" + assetID + "protectionClass=" + protectionClass + ", size=" + size + ", fileType=" + fileType + ", downloadTokenExpiration=" + downloadTokenExpiration + ", contentBaseURL=" + contentBaseURL + ", fileChecksum=" + fileChecksum.map(Hex::toHexString) + ", fileSignature=" + fileSignature.map(Hex::toHexString) + ", keyEncryptionKey=" + keyEncryptionKey.map(Hex::toHexString) + ", encryptedAttributes=" + encryptedAttributes.map(NSObject::toXMLPropertyList) + ", asset=" + asset + '}'; } }