plugeth/rpc/errors.go

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// Copyright 2015 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package rpc
import "fmt"
// HTTPError is returned by client operations when the HTTP status code of the
// response is not a 2xx status.
type HTTPError struct {
StatusCode int
Status string
Body []byte
}
func (err HTTPError) Error() string {
if len(err.Body) == 0 {
return err.Status
}
return fmt.Sprintf("%v: %s", err.Status, err.Body)
}
// Error wraps RPC errors, which contain an error code in addition to the message.
type Error interface {
Error() string // returns the message
ErrorCode() int // returns the code
}
// A DataError contains some data in addition to the error message.
type DataError interface {
Error() string // returns the message
ErrorData() interface{} // returns the error data
}
// Error types defined below are the built-in JSON-RPC errors.
internal/ethapi: return revert reason for eth_call (#21083) * internal/ethapi: return revert reason for eth_call * internal/ethapi: moved revert reason logic to doCall * accounts/abi/bind/backends: added revert reason logic to simulated backend * internal/ethapi: fixed linting error * internal/ethapi: check if require reason can be unpacked * internal/ethapi: better error logic * internal/ethapi: simplify logic * internal/ethapi: return vmError() * internal/ethapi: move handling of revert out of docall * graphql: removed revert logic until spec change * rpc: internal/ethapi: added custom error types * graphql: use returndata instead of return Return() checks if there is an error. If an error is found, we return nil. For most use cases it can be beneficial to return the output even if there was an error. This code should be changed anyway once the spec supports error reasons in graphql responses * accounts/abi/bind/backends: added tests for revert reason * internal/ethapi: add errorCode to revert error * internal/ethapi: add errorCode of 3 to revertError * internal/ethapi: unified estimateGasErrors, simplified logic * internal/ethapi: unified handling of errors in DoEstimateGas * rpc: print error data field * accounts/abi/bind/backends: unify simulatedBackend and RPC * internal/ethapi: added binary data to revertError data * internal/ethapi: refactored unpacking logic into newRevertError * accounts/abi/bind/backends: fix EstimateGas * accounts, console, internal, rpc: minor error interface cleanups * Revert "accounts, console, internal, rpc: minor error interface cleanups" This reverts commit 2d3ef53c5304e429a04983210a417c1f4e0dafb7. * re-apply the good parts of 2d3ef53c53 * rpc: add test for returning server error data from client Co-authored-by: rjl493456442 <garyrong0905@gmail.com> Co-authored-by: Péter Szilágyi <peterke@gmail.com> Co-authored-by: Felix Lange <fjl@twurst.com>
2020-06-08 08:09:49 +00:00
var (
_ Error = new(methodNotFoundError)
_ Error = new(subscriptionNotFoundError)
_ Error = new(parseError)
_ Error = new(invalidRequestError)
_ Error = new(invalidMessageError)
_ Error = new(invalidParamsError)
)
const defaultErrorCode = -32000
type methodNotFoundError struct{ method string }
func (e *methodNotFoundError) ErrorCode() int { return -32601 }
func (e *methodNotFoundError) Error() string {
return fmt.Sprintf("the method %s does not exist/is not available", e.method)
}
type subscriptionNotFoundError struct{ namespace, subscription string }
func (e *subscriptionNotFoundError) ErrorCode() int { return -32601 }
func (e *subscriptionNotFoundError) Error() string {
return fmt.Sprintf("no %q subscription in %s namespace", e.subscription, e.namespace)
}
// Invalid JSON was received by the server.
type parseError struct{ message string }
func (e *parseError) ErrorCode() int { return -32700 }
func (e *parseError) Error() string { return e.message }
// received message isn't a valid request
type invalidRequestError struct{ message string }
func (e *invalidRequestError) ErrorCode() int { return -32600 }
func (e *invalidRequestError) Error() string { return e.message }
// received message is invalid
type invalidMessageError struct{ message string }
func (e *invalidMessageError) ErrorCode() int { return -32700 }
func (e *invalidMessageError) Error() string { return e.message }
// unable to decode supplied params, or an invalid number of parameters
type invalidParamsError struct{ message string }
func (e *invalidParamsError) ErrorCode() int { return -32602 }
func (e *invalidParamsError) Error() string { return e.message }