Move Writer creation out of WriterImpls

[signal-cli] / src / main / java / org / asamk / signal / commands / JsonRpcDispatcherCommand.java

diff --git a/src/main/java/org/asamk/signal/commands/JsonRpcDispatcherCommand.java b/src/main/java/org/asamk/signal/commands/JsonRpcDispatcherCommand.java
index 4ca906285f5e252c6abaa6350aedd362f6d929ba..4cfa58916923455852b2952c7359af9634a1b595 100644 (file)
--- a/src/main/java/org/asamk/signal/commands/JsonRpcDispatcherCommand.java
+++ b/src/main/java/org/asamk/signal/commands/JsonRpcDispatcherCommand.java
@@ -1,175 +1,69 @@
 package org.asamk.signal.commands;
 
 package org.asamk.signal.commands;
 

-import com.fasterxml.jackson.core.TreeNode;
-import com.fasterxml.jackson.databind.JsonMappingException;
-import com.fasterxml.jackson.databind.JsonNode;
-import com.fasterxml.jackson.databind.ObjectMapper;
-import com.fasterxml.jackson.databind.node.ContainerNode;
-

 import net.sourceforge.argparse4j.impl.Arguments;
 import net.sourceforge.argparse4j.inf.Namespace;
 import net.sourceforge.argparse4j.inf.Subparser;
 
 import net.sourceforge.argparse4j.impl.Arguments;
 import net.sourceforge.argparse4j.inf.Namespace;
 import net.sourceforge.argparse4j.inf.Subparser;
 

-import org.asamk.signal.JsonReceiveMessageHandler;

 import org.asamk.signal.JsonWriter;
 import org.asamk.signal.OutputType;
 import org.asamk.signal.OutputWriter;
 import org.asamk.signal.commands.exceptions.CommandException;
 import org.asamk.signal.JsonWriter;
 import org.asamk.signal.OutputType;
 import org.asamk.signal.OutputWriter;
 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.jsonrpc.JsonRpcException;
-import org.asamk.signal.jsonrpc.JsonRpcReader;
-import org.asamk.signal.jsonrpc.JsonRpcRequest;
-import org.asamk.signal.jsonrpc.JsonRpcResponse;
-import org.asamk.signal.jsonrpc.JsonRpcSender;
+import org.asamk.signal.jsonrpc.SignalJsonRpcDispatcherHandler;

 import org.asamk.signal.manager.Manager;
 import org.asamk.signal.manager.Manager;

-import org.asamk.signal.util.Util;

 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStreamReader;

-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.TimeUnit;
+import java.io.Reader;
+import java.util.List;
+import java.util.function.Supplier;

 
 public class JsonRpcDispatcherCommand implements LocalCommand {
 
     private final static Logger logger = LoggerFactory.getLogger(JsonRpcDispatcherCommand.class);
 
 
 public class JsonRpcDispatcherCommand implements LocalCommand {
 
     private final static Logger logger = LoggerFactory.getLogger(JsonRpcDispatcherCommand.class);
 

-    private static final int USER_ERROR = -1;
-    private static final int IO_ERROR = -3;
-    private static final int UNTRUSTED_KEY_ERROR = -4;
-
-    private final OutputWriter outputWriter;
+    @Override
+    public String getName() {
+        return "jsonRpc";
+    }

 
 

-    public static void attachToSubparser(final Subparser subparser) {
+    @Override
+    public void attachToSubparser(final Subparser subparser) {

         subparser.help("Take commands from standard input as line-delimited JSON RPC while receiving messages.");
         subparser.addArgument("--ignore-attachments")
                 .help("Don’t download attachments of received messages.")
                 .action(Arguments.storeTrue());
     }
 
         subparser.help("Take commands from standard input as line-delimited JSON RPC while receiving messages.");
         subparser.addArgument("--ignore-attachments")
                 .help("Don’t download attachments of received messages.")
                 .action(Arguments.storeTrue());
     }
 

-    public JsonRpcDispatcherCommand(final OutputWriter outputWriter) {
-        this.outputWriter = outputWriter;
-    }
-

     @Override
     @Override

-    public Set<OutputType> getSupportedOutputTypes() {
-        return Set.of(OutputType.JSON);
+    public List<OutputType> getSupportedOutputTypes() {
+        return List.of(OutputType.JSON);

     }
 
     @Override
     }
 
     @Override

-    public void handleCommand(final Namespace ns, final Manager m) throws CommandException {
-        final boolean ignoreAttachments = ns.getBoolean("ignore-attachments");
+    public void handleCommand(
+            final Namespace ns, final Manager m, final OutputWriter outputWriter
+    ) throws CommandException {
+        final boolean ignoreAttachments = Boolean.TRUE.equals(ns.getBoolean("ignore-attachments"));
+        m.setIgnoreAttachments(ignoreAttachments);

 
 

-        final var objectMapper = Util.createJsonObjectMapper();
-        final var jsonRpcSender = new JsonRpcSender((JsonWriter) outputWriter);
+        final var jsonOutputWriter = (JsonWriter) outputWriter;
+        final Supplier<String> lineSupplier = getLineSupplier(new InputStreamReader(System.in));

 
 

-        final var receiveThread = receiveMessages(s -> jsonRpcSender.sendRequest(JsonRpcRequest.forNotification(
-                "receive",
-                objectMapper.valueToTree(s),
-                null)), m, ignoreAttachments);
+        final var handler = new SignalJsonRpcDispatcherHandler(m, jsonOutputWriter, lineSupplier);
+        handler.handleConnection();

 
 

-        final BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
-
-        final var jsonRpcReader = new JsonRpcReader(jsonRpcSender, () -> {
+    private Supplier<String> getLineSupplier(final Reader reader) {
+        final var bufferedReader = new BufferedReader(reader);
+        return () -> {

             try {
             try {

-                return reader.readLine();
+                return bufferedReader.readLine();

             } catch (IOException e) {
             } catch (IOException e) {

-                throw new AssertionError(e);
-            }
-        });
-        jsonRpcReader.readRequests((method, params) -> handleRequest(m, objectMapper, method, params),
-                response -> logger.debug("Received unexpected response for id {}", response.getId()));
-
-        receiveThread.interrupt();
-        try {
-            receiveThread.join();
-        } catch (InterruptedException ignored) {
-        }
-    }
-
-    private JsonNode handleRequest(
-            final Manager m, final ObjectMapper objectMapper, final String method, ContainerNode<?> params
-    ) throws JsonRpcException {
-        final Object[] result = {null};
-        final JsonWriter commandOutputWriter = s -> {
-            if (result[0] != null) {
-                throw new AssertionError("Command may only write one json result");
+                logger.error("Error occurred while reading line", e);
+                return null;

             }
             }

-
-            result[0] = s;

         };
         };

-
-        var command = Commands.getCommand(method, commandOutputWriter);
-        if (!(command instanceof JsonRpcCommand)) {
-            throw new JsonRpcException(new JsonRpcResponse.Error(JsonRpcResponse.Error.METHOD_NOT_FOUND,
-                    "Method not implemented",
-                    null));
-        }
-
-        try {
-            parseParamsAndRunCommand(m, objectMapper, params, (JsonRpcCommand<?>) 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));
-        } catch (IOErrorException e) {
-            throw new JsonRpcException(new JsonRpcResponse.Error(IO_ERROR, e.getMessage(), null));
-        } catch (UntrustedKeyErrorException e) {
-            throw new JsonRpcException(new JsonRpcResponse.Error(UNTRUSTED_KEY_ERROR, e.getMessage(), null));
-        } catch (Throwable e) {
-            logger.error("Command execution failed", e);
-            throw new JsonRpcException(new JsonRpcResponse.Error(JsonRpcResponse.Error.INTERNAL_ERROR,
-                    e.getMessage(),
-                    null));
-        }
-
-        Object output = result[0] == null ? Map.of() : result[0];
-        return objectMapper.valueToTree(output);
-    }
-
-    private <T> void parseParamsAndRunCommand(
-            final Manager m, final ObjectMapper objectMapper, final TreeNode params, final JsonRpcCommand<T> command
-    ) throws CommandException, JsonMappingException {
-        T requestParams = null;
-        final var requestType = command.getRequestType();
-        if (params != null && requestType != null) {
-            try {
-                requestParams = objectMapper.readValue(objectMapper.treeAsTokens(params), requestType);
-            } catch (JsonMappingException e) {
-                throw e;
-            } catch (IOException e) {
-                throw new AssertionError(e);
-            }
-        }
-        command.handleCommand(requestParams, m);
-    }
-
-    private Thread receiveMessages(
-            JsonWriter jsonWriter, Manager m, boolean ignoreAttachments
-    ) {
-        final var thread = new Thread(() -> {
-            while (!Thread.interrupted()) {
-                try {
-                    final var receiveMessageHandler = new JsonReceiveMessageHandler(m, jsonWriter);
-                    m.receiveMessages(1, TimeUnit.HOURS, false, ignoreAttachments, receiveMessageHandler);
-                    break;
-                } catch (IOException e) {
-                    logger.warn("Receiving messages failed, retrying", e);
-                } catch (InterruptedException e) {
-                    break;
-                }
-            }
-        });
-
-        thread.start();
-
-        return thread;

     }
 }
     }
 }