package org.asamk.signal.jsonrpc;
import com.fasterxml.jackson.core.TreeNode;
+import com.fasterxml.jackson.core.type.TypeReference;
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.JsonReceiveMessageHandler;
-import org.asamk.signal.JsonWriter;
-import org.asamk.signal.OutputWriter;
+import org.asamk.signal.commands.Command;
import org.asamk.signal.commands.Commands;
-import org.asamk.signal.commands.JsonRpcCommand;
+import org.asamk.signal.commands.JsonRpcMultiCommand;
+import org.asamk.signal.commands.JsonRpcRegistrationCommand;
+import org.asamk.signal.commands.JsonRpcSingleCommand;
import org.asamk.signal.commands.exceptions.CommandException;
import org.asamk.signal.commands.exceptions.IOErrorException;
import org.asamk.signal.commands.exceptions.UntrustedKeyErrorException;
import org.asamk.signal.commands.exceptions.UserErrorException;
+import org.asamk.signal.json.JsonReceiveMessageHandler;
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 org.slf4j.LoggerFactory;
import java.io.IOException;
+import java.nio.channels.OverlappingFileLockException;
+import java.util.HashMap;
+import java.util.List;
import java.util.Map;
+import java.util.concurrent.atomic.AtomicInteger;
import java.util.function.Supplier;
public class SignalJsonRpcDispatcherHandler {
private static final int IO_ERROR = -3;
private static final int UNTRUSTED_KEY_ERROR = -4;
- private final Manager m;
- private final JsonWriter outputWriter;
- private final Supplier<String> lineSupplier;
+ private final ObjectMapper objectMapper;
+ private final JsonRpcSender jsonRpcSender;
+ private final JsonRpcReader jsonRpcReader;
+ private final boolean noReceiveOnStart;
+
+ private MultiAccountManager c;
+ private final Map<Integer, List<Pair<Manager, Manager.ReceiveMessageHandler>>> receiveHandlers = new HashMap<>();
+
+ private Manager m;
public SignalJsonRpcDispatcherHandler(
- final Manager m, final JsonWriter outputWriter, final Supplier<String> lineSupplier
+ final JsonWriter jsonWriter, final Supplier<String> lineSupplier, final boolean noReceiveOnStart
) {
+ this.noReceiveOnStart = noReceiveOnStart;
+ this.objectMapper = Util.createJsonObjectMapper();
+ this.jsonRpcSender = new JsonRpcSender(jsonWriter);
+ this.jsonRpcReader = new JsonRpcReader(jsonRpcSender, lineSupplier);
+ }
+
+ public void handleConnection(final MultiAccountManager c) {
+ this.c = c;
+
+ if (!noReceiveOnStart) {
+ this.subscribeReceive(c.getManagers());
+ c.addOnManagerAddedHandler(this::subscribeReceive);
+ c.addOnManagerRemovedHandler(this::unsubscribeReceive);
+ }
+
+ handleConnection();
+ }
+
+ public void handleConnection(final Manager m) {
this.m = m;
- this.outputWriter = outputWriter;
- this.lineSupplier = lineSupplier;
+
+ if (!noReceiveOnStart) {
+ subscribeReceive(m);
+ }
+
+ final var currentThread = Thread.currentThread();
+ m.addClosedListener(currentThread::interrupt);
+
+ handleConnection();
}
- public void handleConnection() {
- final var objectMapper = Util.createJsonObjectMapper();
- final var jsonRpcSender = new JsonRpcSender(outputWriter);
+ private static final AtomicInteger nextSubscriptionId = new AtomicInteger(0);
- final var receiveMessageHandler = new JsonReceiveMessageHandler(m,
- s -> jsonRpcSender.sendRequest(JsonRpcRequest.forNotification("receive",
- objectMapper.valueToTree(s),
- null)));
- try {
+ private int subscribeReceive(final Manager manager) {
+ return subscribeReceive(List.of(manager));
+ }
+
+ 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);
- // Maybe this should be handled inside the Manager
- while (!m.hasCaughtUpWithOldMessages()) {
- try {
- synchronized (m) {
- m.wait();
- }
- } catch (InterruptedException ignored) {
- }
- }
+ return subscriptionId;
+ }
+
+ 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);
+ }
- final var jsonRpcReader = new JsonRpcReader(jsonRpcSender, lineSupplier);
- jsonRpcReader.readRequests((method, params) -> handleRequest(m, objectMapper, method, params),
+ private void handleConnection() {
+ try {
+ jsonRpcReader.readMessages((method, params) -> handleRequest(objectMapper, method, params),
response -> logger.debug("Received unexpected response for id {}", response.getId()));
} finally {
- m.removeReceiveHandler(receiveMessageHandler);
+ 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 Manager m, final ObjectMapper objectMapper, final String method, ContainerNode<?> params
+ 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));
+ }
+ if (command instanceof JsonRpcRegistrationCommand<?> jsonRpcCommand) {
+ try (var manager = getRegistrationManagerFromParams(params)) {
+ if (manager != null) {
+ return runCommand(objectMapper,
+ params,
+ new RegistrationCommandRunnerImpl<>(manager, c, jsonRpcCommand));
+ } else {
+ throw new JsonRpcException(new JsonRpcResponse.Error(JsonRpcResponse.Error.INVALID_PARAMS,
+ "Method requires valid account parameter",
+ null));
+ }
+ } catch (IOException e) {
+ logger.warn("Failed to close registration manager", e);
+ }
+ }
+ }
+ if (command instanceof JsonRpcSingleCommand<?> jsonRpcCommand) {
+ if (m != null) {
+ return runCommand(objectMapper, params, new CommandRunnerImpl<>(m, jsonRpcCommand));
+ }
+
+ final var manager = getManagerFromParams(params);
+ if (manager != null) {
+ return runCommand(objectMapper, params, new CommandRunnerImpl<>(manager, jsonRpcCommand));
+ } else {
+ throw new JsonRpcException(new JsonRpcResponse.Error(JsonRpcResponse.Error.INVALID_PARAMS,
+ "Method requires valid account parameter",
+ null));
+ }
+ }
+
+ throw new JsonRpcException(new JsonRpcResponse.Error(JsonRpcResponse.Error.METHOD_NOT_FOUND,
+ "Method not implemented",
+ null));
+ }
+
+ 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;
+ }
+
+ private RegistrationManager getRegistrationManagerFromParams(final ContainerNode<?> params) {
+ if (params != null && params.has("account")) {
+ try {
+ final var registrationManager = c.getNewRegistrationManager(params.get("account").asText());
+ ((ObjectNode) params).remove("account");
+ return registrationManager;
+ } catch (OverlappingFileLockException e) {
+ logger.warn("Account is already in use");
+ return null;
+ } catch (IOException | IllegalStateException e) {
+ logger.warn("Failed to load registration manager", e);
+ return null;
+ }
+ }
+ return null;
+ }
+
+ private Command getCommand(final String method) {
+ if ("subscribeReceive".equals(method)) {
+ return new SubscribeReceiveCommand();
+ }
+ if ("unsubscribeReceive".equals(method)) {
+ return new UnsubscribeReceiveCommand();
+ }
+ return Commands.getCommand(method);
+ }
+
+ private record CommandRunnerImpl<T>(Manager m, JsonRpcSingleCommand<T> command) implements CommandRunner<T> {
+
+ @Override
+ public void handleCommand(final T request, final JsonWriter jsonWriter) throws CommandException {
+ command.handleCommand(request, m, jsonWriter);
+ }
+
+ @Override
+ public TypeReference<T> getRequestType() {
+ return command.getRequestType();
+ }
+ }
+
+ private record RegistrationCommandRunnerImpl<T>(
+ RegistrationManager m, MultiAccountManager c, JsonRpcRegistrationCommand<T> command
+ ) implements CommandRunner<T> {
+
+ @Override
+ public void handleCommand(final T request, final JsonWriter jsonWriter) throws CommandException {
+ command.handleCommand(request, m, jsonWriter);
+ }
+
+ @Override
+ public TypeReference<T> getRequestType() {
+ return command.getRequestType();
+ }
+ }
+
+ private record MultiCommandRunnerImpl<T>(
+ MultiAccountManager c, JsonRpcMultiCommand<T> command
+ ) implements CommandRunner<T> {
+
+ @Override
+ public void handleCommand(final T request, final JsonWriter jsonWriter) throws CommandException {
+ command.handleCommand(request, c, jsonWriter);
+ }
+
+ @Override
+ public TypeReference<T> getRequestType() {
+ return command.getRequestType();
+ }
+ }
+
+ interface CommandRunner<T> {
+
+ void handleCommand(T request, JsonWriter jsonWriter) throws CommandException;
+
+ TypeReference<T> getRequestType();
+ }
+
+ private JsonNode runCommand(
+ final ObjectMapper objectMapper, final ContainerNode<?> params, final CommandRunner<?> command
) throws JsonRpcException {
final Object[] result = {null};
- final JsonWriter commandOutputWriter = s -> {
+ final JsonWriter commandJsonWriter = s -> {
if (result[0] != null) {
throw new AssertionError("Command may only write one json result");
}
result[0] = s;
};
- var command = Commands.getCommand(method);
- if (!(command instanceof JsonRpcCommand)) {
- throw new JsonRpcException(new JsonRpcResponse.Error(JsonRpcResponse.Error.METHOD_NOT_FOUND,
- "Method not implemented",
- null));
- }
-
try {
- parseParamsAndRunCommand(m, objectMapper, params, commandOutputWriter, (JsonRpcCommand<?>) command);
+ parseParamsAndRunCommand(objectMapper, params, commandJsonWriter, command);
} catch (JsonMappingException e) {
throw new JsonRpcException(new JsonRpcResponse.Error(JsonRpcResponse.Error.INVALID_REQUEST,
e.getMessage(),
null));
} catch (UserErrorException e) {
- throw new JsonRpcException(new JsonRpcResponse.Error(USER_ERROR, e.getMessage(), null));
+ throw new JsonRpcException(new JsonRpcResponse.Error(USER_ERROR,
+ e.getMessage(),
+ getErrorDataNode(objectMapper, result)));
} catch (IOErrorException e) {
- throw new JsonRpcException(new JsonRpcResponse.Error(IO_ERROR, e.getMessage(), null));
+ throw new JsonRpcException(new JsonRpcResponse.Error(IO_ERROR,
+ e.getMessage(),
+ getErrorDataNode(objectMapper, result)));
} catch (UntrustedKeyErrorException e) {
- throw new JsonRpcException(new JsonRpcResponse.Error(UNTRUSTED_KEY_ERROR, e.getMessage(), null));
+ throw new JsonRpcException(new JsonRpcResponse.Error(UNTRUSTED_KEY_ERROR,
+ e.getMessage(),
+ getErrorDataNode(objectMapper, result)));
} catch (Throwable e) {
logger.error("Command execution failed", e);
throw new JsonRpcException(new JsonRpcResponse.Error(JsonRpcResponse.Error.INTERNAL_ERROR,
e.getMessage(),
- null));
+ getErrorDataNode(objectMapper, result)));
}
Object output = result[0] == null ? Map.of() : result[0];
return objectMapper.valueToTree(output);
}
+ private JsonNode getErrorDataNode(final ObjectMapper objectMapper, final Object[] result) {
+ if (result[0] == null) {
+ return null;
+ }
+ return objectMapper.valueToTree(Map.of("response", result[0]));
+ }
+
private <T> void parseParamsAndRunCommand(
- final Manager m,
final ObjectMapper objectMapper,
final TreeNode params,
- final OutputWriter outputWriter,
- final JsonRpcCommand<T> command
+ final JsonWriter jsonWriter,
+ final CommandRunner<T> command
) throws CommandException, JsonMappingException {
T requestParams = null;
final var requestType = command.getRequestType();
throw new AssertionError(e);
}
}
- command.handleCommand(requestParams, m, outputWriter);
+ command.handleCommand(requestParams, jsonWriter);
+ }
+
+ private class SubscribeReceiveCommand implements JsonRpcSingleCommand<Void>, JsonRpcMultiCommand<Void> {
+
+ @Override
+ public String getName() {
+ return "subscribeReceive";
+ }
+
+ @Override
+ public void handleCommand(
+ final Void request, final Manager m, final JsonWriter jsonWriter
+ ) throws CommandException {
+ 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<JsonNode>, JsonRpcMultiCommand<JsonNode> {
+
+ @Override
+ public String getName() {
+ return "unsubscribeReceive";
+ }
+
+ @Override
+ public TypeReference<JsonNode> getRequestType() {
+ return new TypeReference<>() {};
+ }
+
+ @Override
+ public void handleCommand(
+ final JsonNode request, final Manager m, final JsonWriter jsonWriter
+ ) throws CommandException {
+ 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;
+ }
+ }
}
}
git.nmode.ca / signal-cli / blobdiff
