import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ContainerNode;
+import com.fasterxml.jackson.databind.node.IntNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import org.asamk.signal.commands.Command;
import org.asamk.signal.manager.Manager;
import org.asamk.signal.manager.MultiAccountManager;
import org.asamk.signal.manager.RegistrationManager;
+import org.asamk.signal.manager.api.Pair;
import org.asamk.signal.output.JsonWriter;
import org.asamk.signal.util.Util;
import org.slf4j.Logger;
import java.io.IOException;
import java.nio.channels.OverlappingFileLockException;
import java.util.HashMap;
+import java.util.List;
import java.util.Map;
-import java.util.Objects;
+import java.util.concurrent.atomic.AtomicInteger;
import java.util.function.Supplier;
public class SignalJsonRpcDispatcherHandler {
private final boolean noReceiveOnStart;
private MultiAccountManager c;
- private final Map<Manager, Manager.ReceiveMessageHandler> receiveHandlers = new HashMap<>();
+ private final Map<Integer, List<Pair<Manager, Manager.ReceiveMessageHandler>>> receiveHandlers = new HashMap<>();
private Manager m;
this.c = c;
if (!noReceiveOnStart) {
- c.getAccountNumbers().stream().map(c::getManager).filter(Objects::nonNull).forEach(this::subscribeReceive);
+ this.subscribeReceive(c.getManagers());
c.addOnManagerAddedHandler(this::subscribeReceive);
c.addOnManagerRemovedHandler(this::unsubscribeReceive);
}
handleConnection();
}
- private void subscribeReceive(final Manager m) {
- if (receiveHandlers.containsKey(m)) {
- return;
- }
+ private static final AtomicInteger nextSubscriptionId = new AtomicInteger(0);
- final var receiveMessageHandler = new JsonReceiveMessageHandler(m,
- s -> jsonRpcSender.sendRequest(JsonRpcRequest.forNotification("receive",
- objectMapper.valueToTree(s),
- null)));
- m.addReceiveHandler(receiveMessageHandler);
- receiveHandlers.put(m, receiveMessageHandler);
+ private int subscribeReceive(final Manager manager) {
+ return subscribeReceive(List.of(manager));
+ }
- while (!m.hasCaughtUpWithOldMessages()) {
- try {
- synchronized (m) {
- m.wait();
- }
- } catch (InterruptedException ignored) {
- }
- }
+ private int subscribeReceive(final List<Manager> managers) {
+ final var subscriptionId = nextSubscriptionId.getAndIncrement();
+ final var handlers = managers.stream().map(m -> {
+ final var receiveMessageHandler = new JsonReceiveMessageHandler(m, s -> {
+ final ContainerNode<?> params = objectMapper.valueToTree(s);
+ ((ObjectNode) params).set("subscription", IntNode.valueOf(subscriptionId));
+ jsonRpcSender.sendRequest(JsonRpcRequest.forNotification("receive", params, null));
+ });
+ m.addReceiveHandler(receiveMessageHandler);
+ return new Pair<>(m, (Manager.ReceiveMessageHandler) receiveMessageHandler);
+ }).toList();
+ receiveHandlers.put(subscriptionId, handlers);
+
+ return subscriptionId;
}
- void unsubscribeReceive(final Manager m) {
- final var receiveMessageHandler = receiveHandlers.remove(m);
- if (receiveMessageHandler != null) {
- m.removeReceiveHandler(receiveMessageHandler);
+ private boolean unsubscribeReceive(final int subscriptionId) {
+ final var handlers = receiveHandlers.remove(subscriptionId);
+ if (handlers == null) {
+ return false;
}
+ for (final var pair : handlers) {
+ unsubscribeReceiveHandler(pair);
+ }
+ return true;
+ }
+
+ private void unsubscribeReceive(final Manager m) {
+ final var subscriptionId = receiveHandlers.entrySet()
+ .stream()
+ .filter(e -> e.getValue().size() == 1 && e.getValue().get(0).first().equals(m))
+ .map(Map.Entry::getKey)
+ .findFirst();
+ subscriptionId.ifPresent(this::unsubscribeReceive);
}
private void handleConnection() {
jsonRpcReader.readMessages((method, params) -> handleRequest(objectMapper, method, params),
response -> logger.debug("Received unexpected response for id {}", response.getId()));
} finally {
- receiveHandlers.forEach(Manager::removeReceiveHandler);
+ receiveHandlers.forEach((_subscriptionId, handlers) -> handlers.forEach(this::unsubscribeReceiveHandler));
receiveHandlers.clear();
}
}
+ private void unsubscribeReceiveHandler(final Pair<Manager, Manager.ReceiveMessageHandler> pair) {
+ final var m = pair.first();
+ final var handler = pair.second();
+ m.removeReceiveHandler(handler);
+ }
+
private JsonNode handleRequest(
final ObjectMapper objectMapper, final String method, ContainerNode<?> params
) throws JsonRpcException {
var command = getCommand(method);
if (c != null) {
+ if (command instanceof JsonRpcSingleCommand<?> jsonRpcCommand) {
+ final var manager = getManagerFromParams(params);
+ if (manager != null) {
+ return runCommand(objectMapper, params, new CommandRunnerImpl<>(manager, jsonRpcCommand));
+ }
+ }
if (command instanceof JsonRpcMultiCommand<?> jsonRpcCommand) {
return runCommand(objectMapper, params, new MultiCommandRunnerImpl<>(c, jsonRpcCommand));
}
null));
}
- private Manager getManagerFromParams(final ContainerNode<?> params) {
- if (params != null && params.has("account")) {
+ private Manager getManagerFromParams(final ContainerNode<?> params) throws JsonRpcException {
+ if (params != null && params.hasNonNull("account")) {
final var manager = c.getManager(params.get("account").asText());
((ObjectNode) params).remove("account");
+ if (manager == null) {
+ throw new JsonRpcException(new JsonRpcResponse.Error(JsonRpcResponse.Error.INVALID_PARAMS,
+ "Specified account does not exist",
+ null));
+ }
return manager;
}
return null;
command.handleCommand(requestParams, jsonWriter);
}
- private class SubscribeReceiveCommand implements JsonRpcSingleCommand<Void> {
+ private class SubscribeReceiveCommand implements JsonRpcSingleCommand<Void>, JsonRpcMultiCommand<Void> {
@Override
public String getName() {
public void handleCommand(
final Void request, final Manager m, final JsonWriter jsonWriter
) throws CommandException {
- subscribeReceive(m);
+ final var subscriptionId = subscribeReceive(m);
+ jsonWriter.write(subscriptionId);
+ }
+
+ @Override
+ public void handleCommand(
+ final Void request, final MultiAccountManager c, final JsonWriter jsonWriter
+ ) throws CommandException {
+ final var subscriptionId = subscribeReceive(c.getManagers());
+ jsonWriter.write(subscriptionId);
}
}
- private class UnsubscribeReceiveCommand implements JsonRpcSingleCommand<Void> {
+ private class UnsubscribeReceiveCommand implements JsonRpcSingleCommand<JsonNode>, JsonRpcMultiCommand<JsonNode> {
@Override
public String getName() {
return "unsubscribeReceive";
}
+ @Override
+ public TypeReference<JsonNode> getRequestType() {
+ return new TypeReference<>() {};
+ }
+
@Override
public void handleCommand(
- final Void request, final Manager m, final JsonWriter jsonWriter
+ final JsonNode request, final Manager m, final JsonWriter jsonWriter
) throws CommandException {
- unsubscribeReceive(m);
+ final var subscriptionId = getSubscriptionId(request);
+ if (subscriptionId == null) {
+ unsubscribeReceive(m);
+ } else {
+ if (!unsubscribeReceive(subscriptionId)) {
+ throw new UserErrorException("Unknown subscription id");
+ }
+ }
+ }
+
+ @Override
+ public void handleCommand(
+ final JsonNode request, final MultiAccountManager c, final JsonWriter jsonWriter
+ ) throws CommandException {
+ final var subscriptionId = getSubscriptionId(request);
+ if (subscriptionId == null) {
+ throw new UserErrorException("Missing subscription parameter with subscription id");
+ } else {
+ if (!unsubscribeReceive(subscriptionId)) {
+ throw new UserErrorException("Unknown subscription id");
+ }
+ }
+ }
+
+ private Integer getSubscriptionId(final JsonNode request) {
+ if (request instanceof ArrayNode req) {
+ return req.get(0).asInt();
+ } else if (request instanceof ObjectNode req) {
+ return req.get("subscription").asInt();
+ } else {
+ return null;
+ }
}
}
}