Renamed module 'domain' to 'core' to make its purpose more clear
This commit is contained in:
246
core/src/main/java/ch/dissem/bitmessage/InternalContext.java
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246
core/src/main/java/ch/dissem/bitmessage/InternalContext.java
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/*
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* Copyright 2015 Christian Basler
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package ch.dissem.bitmessage;
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import ch.dissem.bitmessage.entity.BitmessageAddress;
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import ch.dissem.bitmessage.entity.Encrypted;
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import ch.dissem.bitmessage.entity.ObjectMessage;
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import ch.dissem.bitmessage.entity.payload.Broadcast;
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import ch.dissem.bitmessage.entity.payload.GetPubkey;
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import ch.dissem.bitmessage.entity.payload.ObjectPayload;
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import ch.dissem.bitmessage.ports.*;
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import ch.dissem.bitmessage.utils.Singleton;
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import ch.dissem.bitmessage.utils.UnixTime;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.IOException;
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import java.util.TreeSet;
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/**
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* The internal context should normally only be used for port implementations. If you need it in your client
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* implementation, you're either doing something wrong, something very weird, or the BitmessageContext should
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* get extended.
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* <p>
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* On the other hand, if you need the BitmessageContext in a port implementation, the same thing might apply.
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* </p>
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*/
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public class InternalContext {
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private final static Logger LOG = LoggerFactory.getLogger(InternalContext.class);
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private final Cryptography cryptography;
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private final Inventory inventory;
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private final NodeRegistry nodeRegistry;
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private final NetworkHandler networkHandler;
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private final AddressRepository addressRepository;
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private final MessageRepository messageRepository;
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private final ProofOfWorkRepository proofOfWorkRepository;
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private final ProofOfWorkEngine proofOfWorkEngine;
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private final MessageCallback messageCallback;
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private final CustomCommandHandler customCommandHandler;
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private final ProofOfWorkService proofOfWorkService;
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private final TreeSet<Long> streams = new TreeSet<>();
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private final int port;
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private final long clientNonce;
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private final long networkNonceTrialsPerByte = 1000;
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private final long networkExtraBytes = 1000;
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private final long pubkeyTTL;
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private long connectionTTL;
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private int connectionLimit;
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public InternalContext(BitmessageContext.Builder builder) {
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this.cryptography = builder.cryptography;
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this.inventory = builder.inventory;
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this.nodeRegistry = builder.nodeRegistry;
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this.networkHandler = builder.networkHandler;
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this.addressRepository = builder.addressRepo;
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this.messageRepository = builder.messageRepo;
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this.proofOfWorkRepository = builder.proofOfWorkRepository;
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this.proofOfWorkService = new ProofOfWorkService();
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this.proofOfWorkEngine = builder.proofOfWorkEngine;
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this.clientNonce = cryptography.randomNonce();
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this.messageCallback = builder.messageCallback;
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this.customCommandHandler = builder.customCommandHandler;
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this.port = builder.port;
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this.connectionLimit = builder.connectionLimit;
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this.connectionTTL = builder.connectionTTL;
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this.pubkeyTTL = builder.pubkeyTTL;
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Singleton.initialize(cryptography);
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// TODO: streams of new identities and subscriptions should also be added. This works only after a restart.
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for (BitmessageAddress address : addressRepository.getIdentities()) {
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streams.add(address.getStream());
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}
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for (BitmessageAddress address : addressRepository.getSubscriptions()) {
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streams.add(address.getStream());
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}
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if (streams.isEmpty()) {
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streams.add(1L);
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}
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init(cryptography, inventory, nodeRegistry, networkHandler, addressRepository, messageRepository,
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proofOfWorkRepository, proofOfWorkService, proofOfWorkEngine,
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messageCallback, customCommandHandler);
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for (BitmessageAddress identity : addressRepository.getIdentities()) {
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streams.add(identity.getStream());
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}
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}
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private void init(Object... objects) {
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for (Object o : objects) {
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if (o instanceof ContextHolder) {
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((ContextHolder) o).setContext(this);
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}
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}
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}
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public Cryptography getCryptography() {
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return cryptography;
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}
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public Inventory getInventory() {
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return inventory;
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}
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public NodeRegistry getNodeRegistry() {
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return nodeRegistry;
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}
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public NetworkHandler getNetworkHandler() {
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return networkHandler;
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}
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public AddressRepository getAddressRepository() {
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return addressRepository;
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}
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public MessageRepository getMessageRepository() {
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return messageRepository;
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}
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public ProofOfWorkRepository getProofOfWorkRepository() {
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return proofOfWorkRepository;
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}
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public ProofOfWorkEngine getProofOfWorkEngine() {
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return proofOfWorkEngine;
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}
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public ProofOfWorkService getProofOfWorkService() {
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return proofOfWorkService;
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}
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public long[] getStreams() {
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long[] result = new long[streams.size()];
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int i = 0;
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for (long stream : streams) {
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result[i++] = stream;
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}
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return result;
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}
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public int getPort() {
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return port;
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}
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public long getNetworkNonceTrialsPerByte() {
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return networkNonceTrialsPerByte;
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}
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public long getNetworkExtraBytes() {
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return networkExtraBytes;
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}
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public void send(final BitmessageAddress from, BitmessageAddress to, final ObjectPayload payload,
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final long timeToLive) {
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try {
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if (to == null) to = from;
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long expires = UnixTime.now(+timeToLive);
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LOG.info("Expires at " + expires);
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final ObjectMessage object = new ObjectMessage.Builder()
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.stream(to.getStream())
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.expiresTime(expires)
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.payload(payload)
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.build();
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if (object.isSigned()) {
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object.sign(from.getPrivateKey());
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}
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if (payload instanceof Broadcast) {
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((Broadcast) payload).encrypt();
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} else if (payload instanceof Encrypted) {
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object.encrypt(to.getPubkey());
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}
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messageCallback.proofOfWorkStarted(payload);
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proofOfWorkService.doProofOfWork(to, object);
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} catch (IOException e) {
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throw new RuntimeException(e);
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}
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}
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public void sendPubkey(final BitmessageAddress identity, final long targetStream) {
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try {
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long expires = UnixTime.now(pubkeyTTL);
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LOG.info("Expires at " + expires);
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final ObjectMessage response = new ObjectMessage.Builder()
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.stream(targetStream)
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.expiresTime(expires)
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.payload(identity.getPubkey())
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.build();
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response.sign(identity.getPrivateKey());
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response.encrypt(cryptography.createPublicKey(identity.getPublicDecryptionKey()));
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messageCallback.proofOfWorkStarted(identity.getPubkey());
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// TODO: remember that the pubkey is just about to be sent, and on which stream!
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proofOfWorkService.doProofOfWork(response);
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} catch (IOException e) {
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throw new RuntimeException(e);
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}
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}
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public void requestPubkey(final BitmessageAddress contact) {
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long expires = UnixTime.now(+pubkeyTTL);
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LOG.info("Expires at " + expires);
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final ObjectMessage response = new ObjectMessage.Builder()
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.stream(contact.getStream())
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.expiresTime(expires)
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.payload(new GetPubkey(contact))
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.build();
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messageCallback.proofOfWorkStarted(response.getPayload());
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proofOfWorkService.doProofOfWork(response);
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}
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public long getClientNonce() {
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return clientNonce;
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}
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public long getConnectionTTL() {
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return connectionTTL;
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}
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public int getConnectionLimit() {
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return connectionLimit;
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}
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public CustomCommandHandler getCustomCommandHandler() {
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return customCommandHandler;
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}
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public interface ContextHolder {
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void setContext(InternalContext context);
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}
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}
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