chore: fix linter issues #28
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WalkthroughThe changes involve modifications across multiple files in the gRPC and JSON-RPC implementations. Key updates include the introduction of new methods and structs for managing client and server configurations, enhancements to error handling, and the removal of specific linters from the Go configuration file. Additionally, new test suites and methods have been added to improve testing capabilities. Overall, these changes enhance the functionality and maintainability of the codebase. Changes
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Actionable comments posted: 4
🧹 Outside diff range and nitpick comments (18)
test/dummy_test.go (2)
9-11: Add documentation to explain the purpose of DummyTestSuite.Consider adding a doc comment to explain:
- The purpose of this test suite
- Why it extends
ExecuteSuite- What scenarios it's designed to test
+// DummyTestSuite is a test suite that extends ExecuteSuite to provide +// basic test coverage for the Execute interface implementation. type DummyTestSuite struct { ExecuteSuite }
17-19: Add documentation to the test runner function.Consider adding a doc comment to explain the test runner's purpose.
+// TestDummySuite bootstraps the test suite execution using the testify framework. func TestDummySuite(t *testing.T) { suite.Run(t, new(DummyTestSuite)) }proxy/jsonrpc/config.go (3)
5-9: Enhance struct documentation for better clarity.While the struct is documented, the documentation could be more comprehensive. Consider adding field-level documentation to clarify the purpose and constraints of each field.
// Config represents configuration settings for server/client. +// It provides timeout and request size limitations for JSON-RPC operations. type Config struct { + // DefaultTimeout specifies the default duration to wait for RPC operations. + // A zero or negative value means no timeout. DefaultTimeout time.Duration + // MaxRequestSize specifies the maximum allowed size of incoming requests in bytes. + // Must be a positive value. Default is 1MB. MaxRequestSize int64 }
Line range hint
11-16: Add validation for MaxRequestSize.Consider adding validation to ensure MaxRequestSize is always positive, either through a constructor or a validation method.
+// ErrInvalidMaxRequestSize is returned when MaxRequestSize is not positive +var ErrInvalidMaxRequestSize = errors.New("max request size must be positive") + +// Validate ensures the configuration values are valid +func (c *Config) Validate() error { + if c.MaxRequestSize <= 0 { + return ErrInvalidMaxRequestSize + } + return nil +}
Line range hint
11-16: Improve code readability with constants.Consider extracting magic numbers into named constants for better maintainability and clarity.
+const ( + // DefaultTimeoutDuration is the default timeout for RPC operations + DefaultTimeoutDuration = time.Second + + // DefaultMaxRequestSizeBytes is the default maximum request size (1MB) + DefaultMaxRequestSizeBytes = 1024 * 1024 +) // DefaultConfig returns Config struct initialized with default settings. +// It sets a timeout of 1 second and a maximum request size of 1MB. func DefaultConfig() *Config { return &Config{ - DefaultTimeout: time.Second, - MaxRequestSize: 1024 * 1024, // 1MB + DefaultTimeout: DefaultTimeoutDuration, + MaxRequestSize: DefaultMaxRequestSizeBytes, } }proxy/grpc/config.go (1)
5-10: Enhance struct documentation and security considerations.While the struct is well-organized, consider the following improvements:
- Add detailed documentation for each field explaining their purpose and constraints
- Consider adding validation for JWTSecret (e.g., minimum length requirement)
// Config holds configuration settings for the gRPC proxy. +// It manages authentication, timeout, and request size limitations. type Config struct { + // JWTSecret is the key used for JWT token validation. + // It must be at least 32 bytes long for adequate security. JWTSecret []byte + // DefaultTimeout specifies the maximum duration for gRPC operations. DefaultTimeout time.Duration + // MaxRequestSize specifies the maximum allowed size for incoming requests in bytes. MaxRequestSize int }proxy/jsonrpc/proxy_test.go (1)
41-41: LGTM! Consider adding a comment about ignored error.The explicit error handling with
_ = client.Stop()properly addresses the linter issue. However, it would be helpful to add a comment explaining why it's safe to ignore errors during cleanup.- _ = client.Stop() + // Ignore stop error as it's not critical during test cleanup + _ = client.Stop()test/suite.go (2)
Line range hint
18-28: Consider adding edge cases to strengthen test coverageWhile the happy path is well tested, consider adding test cases for:
- Zero/negative initial height
- Empty chain ID
- Zero time
- Error conditions from the Execute implementation
Line range hint
37-48: Strengthen ExecuteTxs test scenariosConsider enhancing the test with:
- Table-driven tests for different transaction combinations
- Validation that state root changes reflect transaction execution
- Edge cases:
- Empty transaction list
- Invalid transactions
- Zero block height
- Empty previous state root
test/dummy.go (2)
36-40: Consider enhancing the method documentation.While the implementation is correct for testing purposes, the documentation could be more comprehensive by describing the parameters and return values following Go conventions.
Consider updating the comment like this:
-// ExecuteTxs simulate execution of transactions. +// ExecuteTxs simulates execution of transactions by appending them to the internal list. +// It takes transactions, block height, timestamp, and previous state root as parameters, +// and returns the current state root, maximum bytes, and any error encountered.
42-45: Consider enhancing test capabilities.For better testing capabilities, consider tracking whether SetFinal was called and with what parameters. This would allow test cases to verify the method's usage.
Here's a suggested implementation:
type Execute struct { stateRoot types.Hash maxBytes uint64 txs []types.Tx + finalizedHeight uint64 + finalizedCalled bool } // SetFinal marks block at given height as finalized. func (e *Execute) SetFinal(blockHeight uint64) error { + e.finalizedHeight = blockHeight + e.finalizedCalled = true return nil } // Helper methods for tests +func (e *Execute) WasFinalized() bool { + return e.finalizedCalled +} + +func (e *Execute) GetFinalizedHeight() uint64 { + return e.finalizedHeight +}proxy/grpc/client.go (2)
27-32: Consider adding config validationThe
SetConfigmethod could benefit from validation of the config fields (e.g., ensuring DefaultTimeout > 0). Consider returning an error to indicate invalid configurations.-func (c *Client) SetConfig(config *Config) { +func (c *Client) SetConfig(config *Config) error { if config != nil { + if config.DefaultTimeout <= 0 { + return fmt.Errorf("default timeout must be positive") + } c.config = config } + return nil }
Line range hint
53-126: Consider adding observabilityThe business logic methods are well-implemented with proper context management and error handling. However, consider adding:
- Logging for important operations (initialization, errors)
- Metrics for monitoring (latency, error counts)
Example for InitChain:
func (c *Client) InitChain(genesisTime time.Time, initialHeight uint64, chainID string) (types.Hash, uint64, error) { ctx, cancel := context.WithTimeout(context.Background(), c.config.DefaultTimeout) defer cancel() + + // Add logging + logger.Info("initializing chain", "chainID", chainID, "height", initialHeight) + + // Add metrics timing + start := time.Now() + defer func() { + metrics.ObserveLatency("init_chain", time.Since(start)) + }() resp, err := c.client.InitChain(ctx, &pb.InitChainRequest{proxy/grpc/server.go (3)
12-15: Enhance the struct documentation for clarityThe current comment for the
Serverstruct is brief. Providing more detailed documentation could improve code readability and maintainability. Consider elaborating on the purpose and usage of each field within the struct.
Line range hint
66-78: Add authentication validation to theGetTxsmethodThe
GetTxsmethod does not include a call tos.validateAuth(ctx). For consistency and security, consider adding authentication validation to ensure that only authorized clients can retrieve transactions.
Line range hint
87-90: Validate the length ofPrevStateRootbefore copyingTo prevent potential errors or panics, validate the length of
req.PrevStateRootbefore copying it intoprevStateRoot. Ensure thatreq.PrevStateRoothas the expected length matchingtypes.Hash(e.g., 32 bytes).proxy/jsonrpc/client.go (2)
Line range hint
153-157: Ensure unique IDs for JSON-RPC requestsThe
IDfield in the JSON-RPC request is currently hardcoded to1. If multiple requests are made concurrently, responses might not be correctly matched to their requests. To ensure proper correlation between requests and responses, consider generating a unique ID for each request.Apply this diff to generate a unique ID:
+import ( + "math/rand" + "time" +) func (c *Client) call(method string, params interface{}, result interface{}) error { + rand.Seed(time.Now().UnixNano()) + requestID := rand.Int() request := struct { JSONRPC string `json:"jsonrpc"` Method string `json:"method"` Params interface{} `json:"params,omitempty"` - ID int `json:"id"` + ID int `json:"id"` }{ JSONRPC: "2.0", Method: method, Params: params, - ID: 1, + ID: requestID, }Alternatively, you can use an atomic counter for thread-safe sequential IDs:
+import "sync/atomic" +var requestCounter int64 func (c *Client) call(method string, params interface{}, result interface{}) error { + requestID := atomic.AddInt64(&requestCounter, 1) request := struct { JSONRPC string `json:"jsonrpc"` Method string `json:"method"` Params interface{} `json:"params,omitempty"` - ID int `json:"id"` + ID int64 `json:"id"` }{ JSONRPC: "2.0", Method: method, Params: params, - ID: 1, + ID: requestID, }
Line range hint
149-172: Acceptcontext.Contextin client methods for better controlThe
callmethod currently usescontext.Background(), which doesn't allow callers to manage cancellation or set deadlines. By accepting acontext.Contextparameter in your client methods and passing it tocall, you enable callers to have better control over request lifecycles.Apply this diff to modify the
callmethod and update client methods:func (c *Client) call(method string, params interface{}, result interface{}) error { +func (c *Client) call(ctx context.Context, method string, params interface{}, result interface{}) error { request := struct { // ... } // ... - req, err := http.NewRequestWithContext(context.Background(), "POST", c.endpoint, bytes.NewReader(reqBody)) + req, err := http.NewRequestWithContext(ctx, "POST", c.endpoint, bytes.NewReader(reqBody)) if err != nil { return fmt.Errorf("failed to create request: %w", err) } // ... } // Update public methods to accept context and pass it to call ```diff -func (c *Client) InitChain(genesisTime time.Time, initialHeight uint64, chainID string) (types.Hash, uint64, error) { +func (c *Client) InitChain(ctx context.Context, genesisTime time.Time, initialHeight uint64, chainID string) (types.Hash, uint64, error) { // ... - if err := c.call("init_chain", params, &result); err != nil { + if err := c.call(ctx, "init_chain", params, &result); err != nil { return types.Hash{}, 0, err } // ... } // Repeat similar changes for other methods: GetTxs, ExecuteTxs, SetFinal
📜 Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
📒 Files selected for processing (17)
.golangci.yml(0 hunks)proxy/grpc/client.go(4 hunks)proxy/grpc/client_server_test.go(1 hunks)proxy/grpc/config.go(1 hunks)proxy/grpc/errors.go(1 hunks)proxy/grpc/proxy_test.go(2 hunks)proxy/grpc/server.go(5 hunks)proxy/jsonrpc/client.go(5 hunks)proxy/jsonrpc/client_server_test.go(1 hunks)proxy/jsonrpc/config.go(1 hunks)proxy/jsonrpc/errors.go(1 hunks)proxy/jsonrpc/proxy_test.go(1 hunks)proxy/jsonrpc/server.go(2 hunks)test/dummy.go(1 hunks)test/dummy_test.go(1 hunks)test/suite.go(3 hunks)types/types.go(1 hunks)
💤 Files with no reviewable changes (1)
- .golangci.yml
✅ Files skipped from review due to trivial changes (3)
- proxy/grpc/errors.go
- proxy/jsonrpc/errors.go
- types/types.go
🔇 Additional comments (19)
test/dummy_test.go (3)
1-8: LGTM: Package and imports are well-structured.
The package name and imports follow Go conventions and include only the necessary dependencies.
1-19: Verify test coverage implementation.
The AI summary mentions test methods (TestInitChain, TestGetTxs, TestExecuteTxs, TestSetFinal) that should be present, but they're not visible in this file. Let's verify their implementation.
#!/bin/bash
# Check for the mentioned test methods in the codebase
echo "Checking for test method implementations..."
rg -t go "func.*Test(InitChain|GetTxs|ExecuteTxs|SetFinal)" test/
# Check test coverage
echo "Checking Execute interface methods that need testing..."
ast-grep --pattern 'type Execute interface {
$$$
}'13-15: Document the SetupTest method and verify error handling.
Consider adding documentation and checking if NewExecute() can return an error that needs handling.
+// SetupTest initializes a new Execute instance before each test.
func (s *DummyTestSuite) SetupTest() {
s.Exec = NewExecute()
}proxy/grpc/config.go (1)
Line range hint 12-18: Consider security implications and code organization improvements.
The default configuration has several potential issues to address:
- Uninitialized
JWTSecretcould lead to security vulnerabilities if not explicitly set - Magic numbers should be defined as constants
- The 1-second default timeout might be too restrictive for some operations
+const (
+ // DefaultMaxRequestSizeBytes defines the default maximum request size (1MB)
+ DefaultMaxRequestSizeBytes = 1024 * 1024
+ // DefaultTimeoutDuration defines the default operation timeout
+ DefaultTimeoutDuration = time.Second
+)
// DefaultConfig returns a Config instance populated with default settings.
+// Note: JWTSecret must be set before using the configuration for authentication.
func DefaultConfig() *Config {
return &Config{
- DefaultTimeout: time.Second,
- MaxRequestSize: 1024 * 1024,
+ DefaultTimeout: DefaultTimeoutDuration,
+ MaxRequestSize: DefaultMaxRequestSizeBytes,
}
}Let's verify the timeout usage across the codebase to ensure 1 second is sufficient:
test/suite.go (1)
9-9: LGTM: Import ordering follows Go conventions
The reordering of imports follows standard Go conventions by grouping standard library imports first, followed by external dependencies, and then internal packages.
test/dummy.go (2)
25-29: LGTM! Implementation suitable for testing.
The dummy implementation correctly provides a test double with predictable return values.
31-34: LGTM! Clean and straightforward implementation.
The method correctly returns the stored transactions list.
proxy/grpc/proxy_test.go (2)
64-64: LGTM: Connection string format standardization
The addition of the passthrough:// prefix standardizes the connection string format, making it more explicit and consistent with other parts of the codebase.
77-77: LGTM: Appropriate error handling in cleanup
Explicitly ignoring the error from client.Stop() in the cleanup function is acceptable as this is a best-effort cleanup after test completion. This addresses the linter warning about unchecked errors in an appropriate way for teardown contexts.
proxy/grpc/client_server_test.go (2)
41-45: LGTM: More explicit protocol specification
The change from "bufnet" to "passthrough://bufnet" makes the protocol specification more explicit, which is a good practice and consistent with similar changes in other files.
46-46: LGTM: Explicit error handling in cleanup code
The change to use defer func() { _ = client.Stop() }() explicitly acknowledges that we're intentionally ignoring the error from Stop(), which is a common pattern in cleanup code. This is more idiomatic than implicitly ignoring the error.
proxy/jsonrpc/client_server_test.go (1)
32-32: LGTM! Appropriate error handling in test cleanup.
The change properly addresses the linter issue by explicitly acknowledging and ignoring the error from client.Stop(). This is acceptable in test cleanup context where stop errors are typically non-critical and shouldn't fail the test.
Let's verify this pattern is consistently applied across the codebase:
✅ Verification successful
Inconsistent error handling pattern for client.Stop() in test files
The verification reveals inconsistent error handling patterns across test files:
client_server_test.gofiles (both gRPC and JSON-RPC) use:defer func() { _ = client.Stop() }()proxy_test.gofiles (both gRPC and JSON-RPC) use:_ = client.Stop()directly
Let's verify if these are used in different contexts:
Both error handling patterns are appropriate in their contexts
The verification shows that both patterns are correctly handling the error based on their usage:
- In
client_server_test.gofiles,defer func() { _ = client.Stop() }()is used for immediate test cleanup - In
proxy_test.gofiles,_ = client.Stop()is used within a cleanup function that's called later
Both approaches explicitly acknowledge and handle the error, making them compliant with linter requirements. The original review comment's approval stands correct.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Description: Check for consistent error handling pattern in test cleanups
# Expect: All test files should handle client.Stop() errors similarly
# Search for client.Stop() usage in test files
rg -t go --glob '*_test.go' 'client\.Stop\(\)'
# Search for the new pattern specifically
rg -t go --glob '*_test.go' 'func\(\) \{ _ = client\.Stop\(\) \}\(\)'
Length of output: 503
Script:
#!/bin/bash
# Get context around client.Stop() calls in proxy_test.go files
rg -B 5 -A 2 'client\.Stop\(\)' proxy/*/proxy_test.go
Length of output: 746
proxy/grpc/client.go (1)
9-18: LGTM: Clean imports and well-structured Client definition
The imports are appropriate and the Client struct is well-defined with clear field documentation.
proxy/jsonrpc/server.go (2)
13-13: LGTM! Clear and concise documentation.
The added documentation follows Go's conventions and clearly describes the struct's purpose.
19-19: LGTM! Comprehensive function documentation.
The added documentation follows Go's conventions and provides clear information about the function's purpose, parameters, and behavior.
proxy/grpc/server.go (4)
Line range hint 19-26: Function implementation is clear and correct
The NewServer function correctly initializes a new Server instance with proper default configuration handling. The use of DefaultConfig when config is nil ensures robustness.
Line range hint 42-61: Method implementation is correct and follows best practices
The InitChain method correctly handles authentication, input conversion, and error handling. Converting the Unix timestamp to UTC and properly propagating errors enhances reliability.
Line range hint 83-105: Add authentication validation to the ExecuteTxs method
The ExecuteTxs method lacks a call to s.validateAuth(ctx). Consistently applying authentication across all methods is essential for securing the API.
Line range hint 109-116: Add authentication validation to the SetFinal method
The SetFinal method does not call s.validateAuth(ctx). Ensure that authentication is consistently applied to all methods requiring secure access.
Overview
Fix linter issues. All of them.
Resolves #26.
Summary by CodeRabbit
Release Notes
New Features
Bug Fixes
Documentation
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