Make 'to' field optional in eth_call method according to the spec (#3177

) Signed-off-by: Fabio Di Fabio <[email protected]>
hyperledger · Jan 6, 2022 · d1c9918 · d1c9918
1 parent 97e6409
commit d1c9918
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Showing 6 changed files with 31 additions and 65 deletions.
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -5,6 +5,7 @@
 ### Additions and Improvements
 
 ### Bug Fixes
+- Make 'to' field optional in eth_call method according to the spec [#3177] (https://github.com/hyperledger/besu/pull/3177)
 
 ## 22.1.0-RC1
 

diff --git a/...g/hyperledger/besu/ethereum/api/jsonrpc/methods/fork/frontier/EthCallIntegrationTest.java b/...g/hyperledger/besu/ethereum/api/jsonrpc/methods/fork/frontier/EthCallIntegrationTest.java
@@ -15,15 +15,13 @@
 package org.hyperledger.besu.ethereum.api.jsonrpc.methods.fork.frontier;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assertions.catchThrowable;
 
 import org.hyperledger.besu.datatypes.Address;
 import org.hyperledger.besu.datatypes.Wei;
 import org.hyperledger.besu.ethereum.api.jsonrpc.BlockchainImporter;
 import org.hyperledger.besu.ethereum.api.jsonrpc.JsonRpcTestMethodsFactory;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.JsonRpcRequest;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.JsonRpcRequestContext;
-import org.hyperledger.besu.ethereum.api.jsonrpc.internal.exception.InvalidJsonRpcParameters;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.methods.JsonRpcMethod;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.parameters.JsonCallParameter;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.response.JsonRpcError;
@@ -111,7 +109,7 @@ public void shouldReturnExpectedResultForCallAtSpecificBlock() {
   }
 
   @Test
-  public void shouldReturnInvalidRequestWhenMissingToField() {
+  public void shouldReturnSuccessWhenCreatingContract() {
     final JsonCallParameter callParameter =
         new JsonCallParameter(
             Address.fromHexString("0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b"),
@@ -121,16 +119,18 @@ public void shouldReturnInvalidRequestWhenMissingToField() {
             null,
             null,
             null,
-            Bytes.fromHexString("0x12a7b914"),
+            Bytes.fromHexString(
+                "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"),
             null);
     final JsonRpcRequestContext request = requestWithParams(callParameter, "latest");
+    final JsonRpcResponse expectedResponse =
+        new JsonRpcSuccessResponse(
+            null,
+            "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");
 
-    final Throwable thrown = catchThrowable(() -> method.response(request));
+    final JsonRpcResponse response = method.response(request);
 
-    assertThat(thrown)
-        .isInstanceOf(InvalidJsonRpcParameters.class)
-        .hasNoCause()
-        .hasMessage("Missing \"to\" field in call arguments");
+    assertThat(response).usingRecursiveComparison().isEqualTo(expectedResponse);
   }
 
   @Test

diff --git a/...api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/EthCall.java b/...api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/EthCall.java
@@ -126,9 +126,6 @@ private JsonRpcErrorResponse errorResponse(
 
   private JsonCallParameter validateAndGetCallParams(final JsonRpcRequestContext request) {
     final JsonCallParameter callParams = request.getRequiredParameter(0, JsonCallParameter.class);
-    if (callParams.getTo() == null) {
-      throw new InvalidJsonRpcParameters("Missing \"to\" field in call arguments");
-    }
     if (callParams.getGasPrice() != null
         && (callParams.getMaxFeePerGas().isPresent()
             || callParams.getMaxPriorityFeePerGas().isPresent())) {

diff --git a/...src/test/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/EthCallTest.java b/...src/test/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/methods/EthCallTest.java
@@ -15,7 +15,6 @@
 package org.hyperledger.besu.ethereum.api.jsonrpc.internal.methods;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assertions.catchThrowable;
 import static org.hyperledger.besu.ethereum.api.jsonrpc.internal.response.JsonRpcError.BLOCK_NOT_FOUND;
 import static org.hyperledger.besu.ethereum.api.jsonrpc.internal.response.JsonRpcError.INTERNAL_ERROR;
 import static org.mockito.ArgumentMatchers.any;
@@ -30,7 +29,6 @@
 import org.hyperledger.besu.datatypes.Wei;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.JsonRpcRequest;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.JsonRpcRequestContext;
-import org.hyperledger.besu.ethereum.api.jsonrpc.internal.exception.InvalidJsonRpcParameters;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.parameters.JsonCallParameter;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.response.JsonRpcErrorResponse;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.response.JsonRpcResponse;
@@ -77,32 +75,6 @@ public void shouldReturnCorrectMethodName() {
     assertThat(method.getName()).isEqualTo("eth_call");
   }
 
-  @Test
-  public void shouldThrowInvalidJsonRpcParametersExceptionWhenMissingToField() {
-    final JsonCallParameter callParameter =
-        new JsonCallParameter(
-            Address.fromHexString("0x0"),
-            null,
-            Gas.ZERO,
-            Wei.ZERO,
-            null,
-            null,
-            Wei.ZERO,
-            Bytes.EMPTY,
-            null);
-    final JsonRpcRequestContext request = ethCallRequest(callParameter, "latest");
-    when(blockchainQueries.getBlockchain()).thenReturn(blockchain);
-    when(blockchainQueries.getBlockchain().getChainHead()).thenReturn(chainHead);
-    when(blockchainQueries.getBlockchain().getChainHead().getHash()).thenReturn(Hash.ZERO);
-
-    final Throwable thrown = catchThrowable(() -> method.response(request));
-
-    assertThat(thrown)
-        .isInstanceOf(InvalidJsonRpcParameters.class)
-        .hasNoCause()
-        .hasMessage("Missing \"to\" field in call arguments");
-  }
-
   @Test
   public void shouldReturnInternalErrorWhenProcessorReturnsEmpty() {
     final JsonRpcRequestContext request = ethCallRequest(callParameter(), "latest");
@@ -124,8 +96,7 @@ public void shouldReturnInternalErrorWhenProcessorReturnsEmpty() {
   @Test
   public void shouldAcceptRequestWhenMissingOptionalFields() {
     final JsonCallParameter callParameter =
-        new JsonCallParameter(
-            null, Address.fromHexString("0x0"), null, null, null, null, null, null, null);
+        new JsonCallParameter(null, null, null, null, null, null, null, null, null);
     final JsonRpcRequestContext request = ethCallRequest(callParameter, "latest");
     final JsonRpcResponse expectedResponse =
         new JsonRpcSuccessResponse(null, Bytes.of().toString());

diff --git a/...st/resources/org/hyperledger/besu/ethereum/api/jsonrpc/eth/eth_call_contractCreation.json b/...st/resources/org/hyperledger/besu/ethereum/api/jsonrpc/eth/eth_call_contractCreation.json
@@ -0,0 +1,20 @@
+{
+  "request": {
+    "id": 4,
+    "jsonrpc": "2.0",
+    "method": "eth_call",
+    "params": [
+      {
+        "from": "0xa94f5374fce5edbc8e2a8697c15331677e6ebf0b",
+        "data": "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"
+      },
+      "latest"
+    ]
+  },
+  "response": {
+    "jsonrpc": "2.0",
+    "id": 4,
+    "result": "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"
+  },
+  "statusCode": 200
+}
diff --git a/...t/resources/org/hyperledger/besu/ethereum/api/jsonrpc/eth/eth_call_toMissing_block_8.json b/...t/resources/org/hyperledger/besu/ethereum/api/jsonrpc/eth/eth_call_toMissing_block_8.json