forked from cerc-io/plugeth
cmd/clef, signer: make fourbyte its own package, break dep cycle (#19450)
* cmd/clef, signer: make fourbytes its own package, break dep cycle * signer/fourbyte: pull in a sanitized 4byte database
This commit is contained in:
Péter Szilágyi
GitHub
parent
26b50e3ebe
commit
d5af3a584c
@ -14,13 +14,8 @@
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// You should have received a copy of the GNU General Public License
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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// signer is a utility that can be used so sign transactions and
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// arbitrary data.
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package main
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//go:generate go-bindata -o bindata.go resources/4byte.json
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//go:generate gofmt -s -w bindata.go
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import (
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"bufio"
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"context"
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@ -54,6 +49,7 @@ import (
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"github.com/ethereum/go-ethereum/rlp"
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"github.com/ethereum/go-ethereum/rpc"
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"github.com/ethereum/go-ethereum/signer/core"
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"github.com/ethereum/go-ethereum/signer/fourbyte"
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"github.com/ethereum/go-ethereum/signer/rules"
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"github.com/ethereum/go-ethereum/signer/storage"
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"gopkg.in/urfave/cli.v1"
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@ -364,15 +360,12 @@ func signer(c *cli.Context) error {
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}
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// 4bytedb data
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fourByteLocal := c.GlobalString(customDBFlag.Name)
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data, err := Asset("resources/4byte.json")
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db, err := fourbyte.NewWithFile(fourByteLocal)
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if err != nil {
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utils.Fatalf(err.Error())
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}
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db, err := core.NewAbiDBFromFiles(data, fourByteLocal)
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if err != nil {
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utils.Fatalf(err.Error())
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}
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log.Info("Loaded 4byte db", "signatures", db.Size(), "local", fourByteLocal)
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embeds, locals := db.Size()
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log.Info("Loaded 4byte database", "embeds", embeds, "locals", locals, "local", fourByteLocal)
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var (
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api core.ExternalAPI
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File diff suppressed because one or more lines are too long
@ -1,257 +0,0 @@
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// Copyright 2018 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// go-ethereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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package core
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import (
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"bytes"
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"encoding/hex"
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"encoding/json"
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"fmt"
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"io/ioutil"
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"os"
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"regexp"
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"strings"
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"github.com/ethereum/go-ethereum/accounts/abi"
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"github.com/ethereum/go-ethereum/common"
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)
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type decodedArgument struct {
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soltype abi.Argument
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value interface{}
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}
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type decodedCallData struct {
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signature string
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name string
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inputs []decodedArgument
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}
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// String implements stringer interface, tries to use the underlying value-type
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func (arg decodedArgument) String() string {
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var value string
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switch val := arg.value.(type) {
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case fmt.Stringer:
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value = val.String()
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default:
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value = fmt.Sprintf("%v", val)
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}
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return fmt.Sprintf("%v: %v", arg.soltype.Type.String(), value)
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}
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// String implements stringer interface for decodedCallData
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func (cd decodedCallData) String() string {
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args := make([]string, len(cd.inputs))
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for i, arg := range cd.inputs {
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args[i] = arg.String()
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}
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return fmt.Sprintf("%s(%s)", cd.name, strings.Join(args, ","))
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}
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// parseCallData matches the provided call data against the abi definition,
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// and returns a struct containing the actual go-typed values
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func parseCallData(calldata []byte, abidata string) (*decodedCallData, error) {
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if len(calldata) < 4 {
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return nil, fmt.Errorf("Invalid ABI-data, incomplete method signature of (%d bytes)", len(calldata))
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}
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sigdata, argdata := calldata[:4], calldata[4:]
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if len(argdata)%32 != 0 {
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return nil, fmt.Errorf("Not ABI-encoded data; length should be a multiple of 32 (was %d)", len(argdata))
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}
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abispec, err := abi.JSON(strings.NewReader(abidata))
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if err != nil {
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return nil, fmt.Errorf("Failed parsing JSON ABI: %v, abidata: %v", err, abidata)
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}
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method, err := abispec.MethodById(sigdata)
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if err != nil {
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return nil, err
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}
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v, err := method.Inputs.UnpackValues(argdata)
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if err != nil {
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return nil, err
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}
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decoded := decodedCallData{signature: method.Sig(), name: method.Name}
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for n, argument := range method.Inputs {
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if err != nil {
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return nil, fmt.Errorf("Failed to decode argument %d (signature %v): %v", n, method.Sig(), err)
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}
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decodedArg := decodedArgument{
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soltype: argument,
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value: v[n],
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}
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decoded.inputs = append(decoded.inputs, decodedArg)
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}
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// We're finished decoding the data. At this point, we encode the decoded data to see if it matches with the
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// original data. If we didn't do that, it would e.g. be possible to stuff extra data into the arguments, which
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// is not detected by merely decoding the data.
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var (
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encoded []byte
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)
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encoded, err = method.Inputs.PackValues(v)
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if err != nil {
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return nil, err
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}
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if !bytes.Equal(encoded, argdata) {
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was := common.Bytes2Hex(encoded)
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exp := common.Bytes2Hex(argdata)
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return nil, fmt.Errorf("WARNING: Supplied data is stuffed with extra data. \nWant %s\nHave %s\nfor method %v", exp, was, method.Sig())
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}
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return &decoded, nil
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}
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// MethodSelectorToAbi converts a method selector into an ABI struct. The returned data is a valid json string
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// which can be consumed by the standard abi package.
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func MethodSelectorToAbi(selector string) ([]byte, error) {
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re := regexp.MustCompile(`^([^\)]+)\(([a-z0-9,\[\]]*)\)`)
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type fakeArg struct {
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Type string `json:"type"`
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}
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type fakeABI struct {
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Name string `json:"name"`
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Type string `json:"type"`
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Inputs []fakeArg `json:"inputs"`
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}
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groups := re.FindStringSubmatch(selector)
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if len(groups) != 3 {
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return nil, fmt.Errorf("Did not match: %v (%v matches)", selector, len(groups))
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}
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name := groups[1]
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args := groups[2]
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arguments := make([]fakeArg, 0)
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if len(args) > 0 {
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for _, arg := range strings.Split(args, ",") {
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arguments = append(arguments, fakeArg{arg})
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}
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}
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abicheat := fakeABI{
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name, "function", arguments,
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}
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return json.Marshal([]fakeABI{abicheat})
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}
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type AbiDb struct {
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db map[string]string
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customdb map[string]string
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customdbPath string
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}
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// NewEmptyAbiDB exists for test purposes
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func NewEmptyAbiDB() (*AbiDb, error) {
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return &AbiDb{make(map[string]string), make(map[string]string), ""}, nil
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}
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// NewAbiDBFromFile loads signature database from file, and
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// errors if the file is not valid json. Does no other validation of contents
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func NewAbiDBFromFile(path string) (*AbiDb, error) {
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raw, err := ioutil.ReadFile(path)
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if err != nil {
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return nil, err
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}
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db, err := NewEmptyAbiDB()
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if err != nil {
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return nil, err
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}
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if err := json.Unmarshal(raw, &db.db); err != nil {
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return nil, err
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}
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return db, nil
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}
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// NewAbiDBFromFiles loads both the standard signature database (resource file)and a custom database.
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// The latter will be used to write new values into if they are submitted via the API
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func NewAbiDBFromFiles(raw []byte, custom string) (*AbiDb, error) {
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db := &AbiDb{make(map[string]string), make(map[string]string), custom}
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db.customdbPath = custom
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if err := json.Unmarshal(raw, &db.db); err != nil {
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return nil, err
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}
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// Custom file may not exist. Will be created during save, if needed
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if _, err := os.Stat(custom); err == nil {
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raw, err = ioutil.ReadFile(custom)
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if err != nil {
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return nil, err
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}
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if err := json.Unmarshal(raw, &db.customdb); err != nil {
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return nil, err
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}
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}
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return db, nil
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}
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// LookupMethodSelector checks the given 4byte-sequence against the known ABI methods.
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// OBS: This method does not validate the match, it's assumed the caller will do so
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func (db *AbiDb) LookupMethodSelector(id []byte) (string, error) {
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if len(id) < 4 {
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return "", fmt.Errorf("Expected 4-byte id, got %d", len(id))
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}
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sig := hex.EncodeToString(id[:4])
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if key, exists := db.db[sig]; exists {
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return key, nil
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}
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if key, exists := db.customdb[sig]; exists {
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return key, nil
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}
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return "", fmt.Errorf("Signature %v not found", sig)
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}
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func (db *AbiDb) Size() int {
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return len(db.db)
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}
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// saveCustomAbi saves a signature ephemerally. If custom file is used, also saves to disk
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func (db *AbiDb) saveCustomAbi(selector, signature string) error {
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db.customdb[signature] = selector
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if db.customdbPath == "" {
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return nil //Not an error per se, just not used
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}
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d, err := json.Marshal(db.customdb)
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if err != nil {
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return err
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}
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err = ioutil.WriteFile(db.customdbPath, d, 0600)
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return err
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}
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// AddSignature to the database, if custom database saving is enabled.
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// OBS: This method does _not_ validate the correctness of the data,
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// it is assumed that the caller has already done so
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func (db *AbiDb) AddSignature(selector string, data []byte) error {
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if len(data) < 4 {
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return nil
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}
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_, err := db.LookupMethodSelector(data[:4])
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if err == nil {
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return nil
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}
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sig := hex.EncodeToString(data[:4])
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return db.saveCustomAbi(selector, sig)
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}
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@ -92,12 +92,25 @@ type UIClientAPI interface {
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RegisterUIServer(api *UIServerAPI)
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}
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// Validator defines the methods required to validate a transaction against some
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// sanity defaults as well as any underlying 4byte method database.
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//
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// Use fourbyte.Database as an implementation. It is separated out of this package
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// to allow pieces of the signer package to be used without having to load the
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// 7MB embedded 4byte dump.
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type Validator interface {
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// ValidateTransaction does a number of checks on the supplied transaction, and
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// returns either a list of warnings, or an error (indicating that the transaction
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// should be immediately rejected).
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ValidateTransaction(selector *string, tx *SendTxArgs) (*ValidationMessages, error)
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}
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// SignerAPI defines the actual implementation of ExternalAPI
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type SignerAPI struct {
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chainID *big.Int
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am *accounts.Manager
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UI UIClientAPI
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validator *Validator
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validator Validator
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rejectMode bool
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credentials storage.Storage
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}
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@ -235,11 +248,11 @@ var ErrRequestDenied = errors.New("Request denied")
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// key that is generated when a new Account is created.
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// noUSB disables USB support that is required to support hardware devices such as
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// ledger and trezor.
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func NewSignerAPI(am *accounts.Manager, chainID int64, noUSB bool, ui UIClientAPI, abidb *AbiDb, advancedMode bool, credentials storage.Storage) *SignerAPI {
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func NewSignerAPI(am *accounts.Manager, chainID int64, noUSB bool, ui UIClientAPI, validator Validator, advancedMode bool, credentials storage.Storage) *SignerAPI {
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if advancedMode {
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log.Info("Clef is in advanced mode: will warn instead of reject")
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}
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signer := &SignerAPI{big.NewInt(chainID), am, ui, NewValidator(abidb), !advancedMode, credentials}
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signer := &SignerAPI{big.NewInt(chainID), am, ui, validator, !advancedMode, credentials}
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if !noUSB {
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signer.startUSBListener()
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}
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@ -458,7 +471,7 @@ func (api *SignerAPI) SignTransaction(ctx context.Context, args SendTxArgs, meth
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err error
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result SignTxResponse
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)
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msgs, err := api.validator.ValidateTransaction(&args, methodSelector)
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msgs, err := api.validator.ValidateTransaction(methodSelector, &args)
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if err != nil {
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return nil, err
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}
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@ -14,7 +14,7 @@
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// You should have received a copy of the GNU General Public License
|
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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//
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package core
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package core_test
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import (
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"bytes"
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@ -34,6 +34,8 @@ import (
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/internal/ethapi"
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"github.com/ethereum/go-ethereum/rlp"
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"github.com/ethereum/go-ethereum/signer/core"
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"github.com/ethereum/go-ethereum/signer/fourbyte"
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"github.com/ethereum/go-ethereum/signer/storage"
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)
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@ -43,56 +45,56 @@ type headlessUi struct {
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inputCh chan string // to send password
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}
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func (ui *headlessUi) OnInputRequired(info UserInputRequest) (UserInputResponse, error) {
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func (ui *headlessUi) OnInputRequired(info core.UserInputRequest) (core.UserInputResponse, error) {
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input := <-ui.inputCh
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return UserInputResponse{Text: input}, nil
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return core.UserInputResponse{Text: input}, nil
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}
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func (ui *headlessUi) OnSignerStartup(info StartupInfo) {}
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func (ui *headlessUi) RegisterUIServer(api *UIServerAPI) {}
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func (ui *headlessUi) OnSignerStartup(info core.StartupInfo) {}
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func (ui *headlessUi) RegisterUIServer(api *core.UIServerAPI) {}
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func (ui *headlessUi) OnApprovedTx(tx ethapi.SignTransactionResult) {}
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func (ui *headlessUi) ApproveTx(request *SignTxRequest) (SignTxResponse, error) {
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func (ui *headlessUi) ApproveTx(request *core.SignTxRequest) (core.SignTxResponse, error) {
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switch <-ui.approveCh {
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case "Y":
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return SignTxResponse{request.Transaction, true}, nil
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return core.SignTxResponse{request.Transaction, true}, nil
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case "M": // modify
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// The headless UI always modifies the transaction
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old := big.Int(request.Transaction.Value)
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newVal := big.NewInt(0).Add(&old, big.NewInt(1))
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request.Transaction.Value = hexutil.Big(*newVal)
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return SignTxResponse{request.Transaction, true}, nil
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return core.SignTxResponse{request.Transaction, true}, nil
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default:
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return SignTxResponse{request.Transaction, false}, nil
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return core.SignTxResponse{request.Transaction, false}, nil
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}
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}
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|
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func (ui *headlessUi) ApproveSignData(request *SignDataRequest) (SignDataResponse, error) {
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func (ui *headlessUi) ApproveSignData(request *core.SignDataRequest) (core.SignDataResponse, error) {
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approved := "Y" == <-ui.approveCh
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return SignDataResponse{approved}, nil
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return core.SignDataResponse{approved}, nil
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}
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|
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func (ui *headlessUi) ApproveListing(request *ListRequest) (ListResponse, error) {
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func (ui *headlessUi) ApproveListing(request *core.ListRequest) (core.ListResponse, error) {
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approval := <-ui.approveCh
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//fmt.Printf("approval %s\n", approval)
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switch approval {
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case "A":
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return ListResponse{request.Accounts}, nil
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return core.ListResponse{request.Accounts}, nil
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case "1":
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l := make([]accounts.Account, 1)
|
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l[0] = request.Accounts[1]
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return ListResponse{l}, nil
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return core.ListResponse{l}, nil
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default:
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return ListResponse{nil}, nil
|
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return core.ListResponse{nil}, nil
|
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}
|
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}
|
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|
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func (ui *headlessUi) ApproveNewAccount(request *NewAccountRequest) (NewAccountResponse, error) {
|
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func (ui *headlessUi) ApproveNewAccount(request *core.NewAccountRequest) (core.NewAccountResponse, error) {
|
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if "Y" == <-ui.approveCh {
|
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return NewAccountResponse{true}, nil
|
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return core.NewAccountResponse{true}, nil
|
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}
|
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return NewAccountResponse{false}, nil
|
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return core.NewAccountResponse{false}, nil
|
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}
|
||||
|
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func (ui *headlessUi) ShowError(message string) {
|
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@ -117,18 +119,18 @@ func tmpDirName(t *testing.T) string {
|
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return d
|
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}
|
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|
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func setup(t *testing.T) (*SignerAPI, *headlessUi) {
|
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db, err := NewAbiDBFromFile("../../cmd/clef/4byte.json")
|
||||
func setup(t *testing.T) (*core.SignerAPI, *headlessUi) {
|
||||
db, err := fourbyte.New()
|
||||
if err != nil {
|
||||
t.Fatal(err.Error())
|
||||
}
|
||||
ui := &headlessUi{make(chan string, 20), make(chan string, 20)}
|
||||
am := StartClefAccountManager(tmpDirName(t), true, true)
|
||||
api := NewSignerAPI(am, 1337, true, ui, db, true, &storage.NoStorage{})
|
||||
am := core.StartClefAccountManager(tmpDirName(t), true, true)
|
||||
api := core.NewSignerAPI(am, 1337, true, ui, db, true, &storage.NoStorage{})
|
||||
return api, ui
|
||||
|
||||
}
|
||||
func createAccount(ui *headlessUi, api *SignerAPI, t *testing.T) {
|
||||
func createAccount(ui *headlessUi, api *core.SignerAPI, t *testing.T) {
|
||||
ui.approveCh <- "Y"
|
||||
ui.inputCh <- "a_long_password"
|
||||
_, err := api.New(context.Background())
|
||||
@ -139,7 +141,7 @@ func createAccount(ui *headlessUi, api *SignerAPI, t *testing.T) {
|
||||
time.Sleep(250 * time.Millisecond)
|
||||
}
|
||||
|
||||
func failCreateAccountWithPassword(ui *headlessUi, api *SignerAPI, password string, t *testing.T) {
|
||||
func failCreateAccountWithPassword(ui *headlessUi, api *core.SignerAPI, password string, t *testing.T) {
|
||||
|
||||
ui.approveCh <- "Y"
|
||||
// We will be asked three times to provide a suitable password
|
||||
@ -156,10 +158,10 @@ func failCreateAccountWithPassword(ui *headlessUi, api *SignerAPI, password stri
|
||||
}
|
||||
}
|
||||
|
||||
func failCreateAccount(ui *headlessUi, api *SignerAPI, t *testing.T) {
|
||||
func failCreateAccount(ui *headlessUi, api *core.SignerAPI, t *testing.T) {
|
||||
ui.approveCh <- "N"
|
||||
addr, err := api.New(context.Background())
|
||||
if err != ErrRequestDenied {
|
||||
if err != core.ErrRequestDenied {
|
||||
t.Fatal(err)
|
||||
}
|
||||
if addr != (common.Address{}) {
|
||||
@ -167,7 +169,7 @@ func failCreateAccount(ui *headlessUi, api *SignerAPI, t *testing.T) {
|
||||
}
|
||||
}
|
||||
|
||||
func list(ui *headlessUi, api *SignerAPI, t *testing.T) ([]common.Address, error) {
|
||||
func list(ui *headlessUi, api *core.SignerAPI, t *testing.T) ([]common.Address, error) {
|
||||
ui.approveCh <- "A"
|
||||
return api.List(context.Background())
|
||||
|
||||
@ -216,19 +218,19 @@ func TestNewAcc(t *testing.T) {
|
||||
if len(list) != 0 {
|
||||
t.Fatalf("List should be empty")
|
||||
}
|
||||
if err != ErrRequestDenied {
|
||||
if err != core.ErrRequestDenied {
|
||||
t.Fatal("Expected deny")
|
||||
}
|
||||
}
|
||||
|
||||
func mkTestTx(from common.MixedcaseAddress) SendTxArgs {
|
||||
func mkTestTx(from common.MixedcaseAddress) core.SendTxArgs {
|
||||
to := common.NewMixedcaseAddress(common.HexToAddress("0x1337"))
|
||||
gas := hexutil.Uint64(21000)
|
||||
gasPrice := (hexutil.Big)(*big.NewInt(2000000000))
|
||||
value := (hexutil.Big)(*big.NewInt(1e18))
|
||||
nonce := (hexutil.Uint64)(0)
|
||||
data := hexutil.Bytes(common.Hex2Bytes("01020304050607080a"))
|
||||
tx := SendTxArgs{
|
||||
tx := core.SendTxArgs{
|
||||
From: from,
|
||||
To: &to,
|
||||
Gas: gas,
|
||||
@ -272,7 +274,7 @@ func TestSignTx(t *testing.T) {
|
||||
if res != nil {
|
||||
t.Errorf("Expected nil-response, got %v", res)
|
||||
}
|
||||
if err != ErrRequestDenied {
|
||||
if err != core.ErrRequestDenied {
|
||||
t.Errorf("Expected ErrRequestDenied! %v", err)
|
||||
}
|
||||
// Sign with correct password
|
||||
|
||||
@ -14,7 +14,7 @@
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
||||
//
|
||||
package core
|
||||
package core_test
|
||||
|
||||
import (
|
||||
"context"
|
||||
@ -26,9 +26,10 @@ import (
|
||||
"github.com/ethereum/go-ethereum/accounts/keystore"
|
||||
"github.com/ethereum/go-ethereum/common"
|
||||
"github.com/ethereum/go-ethereum/common/hexutil"
|
||||
"github.com/ethereum/go-ethereum/signer/core"
|
||||
)
|
||||
|
||||
var typesStandard = Types{
|
||||
var typesStandard = core.Types{
|
||||
"EIP712Domain": {
|
||||
{
|
||||
Name: "name",
|
||||
@ -147,7 +148,7 @@ var jsonTypedData = `
|
||||
|
||||
const primaryType = "Mail"
|
||||
|
||||
var domainStandard = TypedDataDomain{
|
||||
var domainStandard = core.TypedDataDomain{
|
||||
"Ether Mail",
|
||||
"1",
|
||||
big.NewInt(1),
|
||||
@ -167,7 +168,7 @@ var messageStandard = map[string]interface{}{
|
||||
"contents": "Hello, Bob!",
|
||||
}
|
||||
|
||||
var typedData = TypedData{
|
||||
var typedData = core.TypedData{
|
||||
Types: typesStandard,
|
||||
PrimaryType: primaryType,
|
||||
Domain: domainStandard,
|
||||
@ -188,7 +189,7 @@ func TestSignData(t *testing.T) {
|
||||
|
||||
control.approveCh <- "Y"
|
||||
control.inputCh <- "wrongpassword"
|
||||
signature, err := api.SignData(context.Background(), TextPlain.Mime, a, hexutil.Encode([]byte("EHLO world")))
|
||||
signature, err := api.SignData(context.Background(), core.TextPlain.Mime, a, hexutil.Encode([]byte("EHLO world")))
|
||||
if signature != nil {
|
||||
t.Errorf("Expected nil-data, got %x", signature)
|
||||
}
|
||||
@ -196,17 +197,17 @@ func TestSignData(t *testing.T) {
|
||||
t.Errorf("Expected ErrLocked! '%v'", err)
|
||||
}
|
||||
control.approveCh <- "No way"
|
||||
signature, err = api.SignData(context.Background(), TextPlain.Mime, a, hexutil.Encode([]byte("EHLO world")))
|
||||
signature, err = api.SignData(context.Background(), core.TextPlain.Mime, a, hexutil.Encode([]byte("EHLO world")))
|
||||
if signature != nil {
|
||||
t.Errorf("Expected nil-data, got %x", signature)
|
||||
}
|
||||
if err != ErrRequestDenied {
|
||||
if err != core.ErrRequestDenied {
|
||||
t.Errorf("Expected ErrRequestDenied! '%v'", err)
|
||||
}
|
||||
// text/plain
|
||||
control.approveCh <- "Y"
|
||||
control.inputCh <- "a_long_password"
|
||||
signature, err = api.SignData(context.Background(), TextPlain.Mime, a, hexutil.Encode([]byte("EHLO world")))
|
||||
signature, err = api.SignData(context.Background(), core.TextPlain.Mime, a, hexutil.Encode([]byte("EHLO world")))
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
@ -226,13 +227,13 @@ func TestSignData(t *testing.T) {
|
||||
}
|
||||
|
||||
func TestDomainChainId(t *testing.T) {
|
||||
withoutChainID := TypedData{
|
||||
Types: Types{
|
||||
"EIP712Domain": []Type{
|
||||
withoutChainID := core.TypedData{
|
||||
Types: core.Types{
|
||||
"EIP712Domain": []core.Type{
|
||||
{Name: "name", Type: "string"},
|
||||
},
|
||||
},
|
||||
Domain: TypedDataDomain{
|
||||
Domain: core.TypedDataDomain{
|
||||
Name: "test",
|
||||
},
|
||||
}
|
||||
@ -241,14 +242,14 @@ func TestDomainChainId(t *testing.T) {
|
||||
t.Errorf("Expected the chainId key to not be present in the domain map")
|
||||
}
|
||||
|
||||
withChainID := TypedData{
|
||||
Types: Types{
|
||||
"EIP712Domain": []Type{
|
||||
withChainID := core.TypedData{
|
||||
Types: core.Types{
|
||||
"EIP712Domain": []core.Type{
|
||||
{Name: "name", Type: "string"},
|
||||
{Name: "chainId", Type: "uint256"},
|
||||
},
|
||||
},
|
||||
Domain: TypedDataDomain{
|
||||
Domain: core.TypedDataDomain{
|
||||
Name: "test",
|
||||
ChainId: big.NewInt(1),
|
||||
},
|
||||
@ -383,7 +384,7 @@ func TestMalformedDomainkeys(t *testing.T) {
|
||||
}
|
||||
}
|
||||
`
|
||||
var malformedDomainTypedData TypedData
|
||||
var malformedDomainTypedData core.TypedData
|
||||
err := json.Unmarshal([]byte(jsonTypedData), &malformedDomainTypedData)
|
||||
if err != nil {
|
||||
t.Fatalf("unmarshalling failed '%v'", err)
|
||||
@ -471,7 +472,7 @@ func TestMalformedTypesAndExtradata(t *testing.T) {
|
||||
}
|
||||
}
|
||||
`
|
||||
var malformedTypedData TypedData
|
||||
var malformedTypedData core.TypedData
|
||||
err := json.Unmarshal([]byte(jsonTypedData), &malformedTypedData)
|
||||
if err != nil {
|
||||
t.Fatalf("unmarshalling failed '%v'", err)
|
||||
@ -567,7 +568,7 @@ func TestTypeMismatch(t *testing.T) {
|
||||
}
|
||||
}
|
||||
`
|
||||
var mismatchTypedData TypedData
|
||||
var mismatchTypedData core.TypedData
|
||||
err := json.Unmarshal([]byte(jsonTypedData), &mismatchTypedData)
|
||||
if err != nil {
|
||||
t.Fatalf("unmarshalling failed '%v'", err)
|
||||
@ -589,7 +590,7 @@ func TestTypeOverflow(t *testing.T) {
|
||||
//{
|
||||
// "test": 65536 <-- test defined as uint8
|
||||
//}
|
||||
var overflowTypedData TypedData
|
||||
var overflowTypedData core.TypedData
|
||||
err := json.Unmarshal([]byte(jsonTypedData), &overflowTypedData)
|
||||
if err != nil {
|
||||
t.Fatalf("unmarshalling failed '%v'", err)
|
||||
@ -667,7 +668,7 @@ func TestArray(t *testing.T) {
|
||||
}
|
||||
}
|
||||
`
|
||||
var arrayTypedData TypedData
|
||||
var arrayTypedData core.TypedData
|
||||
err := json.Unmarshal([]byte(jsonTypedData), &arrayTypedData)
|
||||
if err != nil {
|
||||
t.Fatalf("unmarshalling failed '%v'", err)
|
||||
@ -780,7 +781,7 @@ func TestCustomTypeAsArray(t *testing.T) {
|
||||
}
|
||||
|
||||
`
|
||||
var malformedTypedData TypedData
|
||||
var malformedTypedData core.TypedData
|
||||
err := json.Unmarshal([]byte(jsonTypedData), &malformedTypedData)
|
||||
if err != nil {
|
||||
t.Fatalf("unmarshalling failed '%v'", err)
|
||||
@ -792,8 +793,7 @@ func TestCustomTypeAsArray(t *testing.T) {
|
||||
}
|
||||
|
||||
func TestFormatter(t *testing.T) {
|
||||
|
||||
var d TypedData
|
||||
var d core.TypedData
|
||||
err := json.Unmarshal([]byte(jsonTypedData), &d)
|
||||
if err != nil {
|
||||
t.Fatalf("unmarshalling failed '%v'", err)
|
||||
|
||||
@ -41,13 +41,13 @@ const (
|
||||
INFO = "Info"
|
||||
)
|
||||
|
||||
func (vs *ValidationMessages) crit(msg string) {
|
||||
func (vs *ValidationMessages) Crit(msg string) {
|
||||
vs.Messages = append(vs.Messages, ValidationInfo{CRIT, msg})
|
||||
}
|
||||
func (vs *ValidationMessages) warn(msg string) {
|
||||
func (vs *ValidationMessages) Warn(msg string) {
|
||||
vs.Messages = append(vs.Messages, ValidationInfo{WARN, msg})
|
||||
}
|
||||
func (vs *ValidationMessages) info(msg string) {
|
||||
func (vs *ValidationMessages) Info(msg string) {
|
||||
vs.Messages = append(vs.Messages, ValidationInfo{INFO, msg})
|
||||
}
|
||||
|
||||
|
||||
@ -17,147 +17,11 @@
|
||||
package core
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"errors"
|
||||
"fmt"
|
||||
"math/big"
|
||||
"regexp"
|
||||
|
||||
"github.com/ethereum/go-ethereum/common"
|
||||
)
|
||||
|
||||
// The validation package contains validation checks for transactions
|
||||
// - ABI-data validation
|
||||
// - Transaction semantics validation
|
||||
// The package provides warnings for typical pitfalls
|
||||
|
||||
type Validator struct {
|
||||
db *AbiDb
|
||||
}
|
||||
|
||||
func NewValidator(db *AbiDb) *Validator {
|
||||
return &Validator{db}
|
||||
}
|
||||
|
||||
func testSelector(selector string, data []byte) (*decodedCallData, error) {
|
||||
if selector == "" {
|
||||
return nil, fmt.Errorf("selector not found")
|
||||
}
|
||||
abiData, err := MethodSelectorToAbi(selector)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
info, err := parseCallData(data, string(abiData))
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return info, nil
|
||||
|
||||
}
|
||||
|
||||
// validateCallData checks if the ABI-data + methodselector (if given) can be parsed and seems to match
|
||||
func (v *Validator) validateCallData(msgs *ValidationMessages, data []byte, methodSelector *string) {
|
||||
if len(data) == 0 {
|
||||
return
|
||||
}
|
||||
if len(data) < 4 {
|
||||
msgs.warn("Tx contains data which is not valid ABI")
|
||||
return
|
||||
}
|
||||
if arglen := len(data) - 4; arglen%32 != 0 {
|
||||
msgs.warn(fmt.Sprintf("Not ABI-encoded data; length should be a multiple of 32 (was %d)", arglen))
|
||||
}
|
||||
var (
|
||||
info *decodedCallData
|
||||
err error
|
||||
)
|
||||
// Check the provided one
|
||||
if methodSelector != nil {
|
||||
info, err = testSelector(*methodSelector, data)
|
||||
if err != nil {
|
||||
msgs.warn(fmt.Sprintf("Tx contains data, but provided ABI signature could not be matched: %v", err))
|
||||
} else {
|
||||
msgs.info(info.String())
|
||||
//Successfull match. add to db if not there already (ignore errors there)
|
||||
v.db.AddSignature(*methodSelector, data[:4])
|
||||
}
|
||||
return
|
||||
}
|
||||
// Check the db
|
||||
selector, err := v.db.LookupMethodSelector(data[:4])
|
||||
if err != nil {
|
||||
msgs.warn(fmt.Sprintf("Tx contains data, but the ABI signature could not be found: %v", err))
|
||||
return
|
||||
}
|
||||
info, err = testSelector(selector, data)
|
||||
if err != nil {
|
||||
msgs.warn(fmt.Sprintf("Tx contains data, but provided ABI signature could not be matched: %v", err))
|
||||
} else {
|
||||
msgs.info(info.String())
|
||||
}
|
||||
}
|
||||
|
||||
// validateSemantics checks if the transactions 'makes sense', and generate warnings for a couple of typical scenarios
|
||||
func (v *Validator) validate(msgs *ValidationMessages, txargs *SendTxArgs, methodSelector *string) error {
|
||||
// Prevent accidental erroneous usage of both 'input' and 'data'
|
||||
if txargs.Data != nil && txargs.Input != nil && !bytes.Equal(*txargs.Data, *txargs.Input) {
|
||||
// This is a showstopper
|
||||
return errors.New(`Ambiguous request: both "data" and "input" are set and are not identical`)
|
||||
}
|
||||
var (
|
||||
data []byte
|
||||
)
|
||||
// Place data on 'data', and nil 'input'
|
||||
if txargs.Input != nil {
|
||||
txargs.Data = txargs.Input
|
||||
txargs.Input = nil
|
||||
}
|
||||
if txargs.Data != nil {
|
||||
data = *txargs.Data
|
||||
}
|
||||
|
||||
if txargs.To == nil {
|
||||
//Contract creation should contain sufficient data to deploy a contract
|
||||
// A typical error is omitting sender due to some quirk in the javascript call
|
||||
// e.g. https://github.com/ethereum/go-ethereum/issues/16106
|
||||
if len(data) == 0 {
|
||||
if txargs.Value.ToInt().Cmp(big.NewInt(0)) > 0 {
|
||||
// Sending ether into black hole
|
||||
return errors.New("Tx will create contract with value but empty code!")
|
||||
}
|
||||
// No value submitted at least
|
||||
msgs.crit("Tx will create contract with empty code!")
|
||||
} else if len(data) < 40 { //Arbitrary limit
|
||||
msgs.warn(fmt.Sprintf("Tx will will create contract, but payload is suspiciously small (%d b)", len(data)))
|
||||
}
|
||||
// methodSelector should be nil for contract creation
|
||||
if methodSelector != nil {
|
||||
msgs.warn("Tx will create contract, but method selector supplied; indicating intent to call a method.")
|
||||
}
|
||||
|
||||
} else {
|
||||
if !txargs.To.ValidChecksum() {
|
||||
msgs.warn("Invalid checksum on to-address")
|
||||
}
|
||||
// Normal transaction
|
||||
if bytes.Equal(txargs.To.Address().Bytes(), common.Address{}.Bytes()) {
|
||||
// Sending to 0
|
||||
msgs.crit("Tx destination is the zero address!")
|
||||
}
|
||||
// Validate calldata
|
||||
v.validateCallData(msgs, data, methodSelector)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// ValidateTransaction does a number of checks on the supplied transaction, and returns either a list of warnings,
|
||||
// or an error, indicating that the transaction should be immediately rejected
|
||||
func (v *Validator) ValidateTransaction(txArgs *SendTxArgs, methodSelector *string) (*ValidationMessages, error) {
|
||||
msgs := &ValidationMessages{}
|
||||
return msgs, v.validate(msgs, txArgs, methodSelector)
|
||||
}
|
||||
|
||||
var Printable7BitAscii = regexp.MustCompile("^[A-Za-z0-9!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~ ]+$")
|
||||
var printable7BitAscii = regexp.MustCompile("^[A-Za-z0-9!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~ ]+$")
|
||||
|
||||
// ValidatePasswordFormat returns an error if the password is too short, or consists of characters
|
||||
// outside the range of the printable 7bit ascii set
|
||||
@ -165,7 +29,7 @@ func ValidatePasswordFormat(password string) error {
|
||||
if len(password) < 10 {
|
||||
return errors.New("password too short (<10 characters)")
|
||||
}
|
||||
if !Printable7BitAscii.MatchString(password) {
|
||||
if !printable7BitAscii.MatchString(password) {
|
||||
return errors.New("password contains invalid characters - only 7bit printable ascii allowed")
|
||||
}
|
||||
return nil
|
||||
|
||||
@ -16,126 +16,7 @@
|
||||
|
||||
package core
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"math/big"
|
||||
"testing"
|
||||
|
||||
"github.com/ethereum/go-ethereum/common"
|
||||
"github.com/ethereum/go-ethereum/common/hexutil"
|
||||
)
|
||||
|
||||
func mixAddr(a string) (*common.MixedcaseAddress, error) {
|
||||
return common.NewMixedcaseAddressFromString(a)
|
||||
}
|
||||
func toHexBig(h string) hexutil.Big {
|
||||
b := big.NewInt(0).SetBytes(common.FromHex(h))
|
||||
return hexutil.Big(*b)
|
||||
}
|
||||
func toHexUint(h string) hexutil.Uint64 {
|
||||
b := big.NewInt(0).SetBytes(common.FromHex(h))
|
||||
return hexutil.Uint64(b.Uint64())
|
||||
}
|
||||
func dummyTxArgs(t txtestcase) *SendTxArgs {
|
||||
to, _ := mixAddr(t.to)
|
||||
from, _ := mixAddr(t.from)
|
||||
n := toHexUint(t.n)
|
||||
gas := toHexUint(t.g)
|
||||
gasPrice := toHexBig(t.gp)
|
||||
value := toHexBig(t.value)
|
||||
var (
|
||||
data, input *hexutil.Bytes
|
||||
)
|
||||
if t.d != "" {
|
||||
a := hexutil.Bytes(common.FromHex(t.d))
|
||||
data = &a
|
||||
}
|
||||
if t.i != "" {
|
||||
a := hexutil.Bytes(common.FromHex(t.i))
|
||||
input = &a
|
||||
|
||||
}
|
||||
return &SendTxArgs{
|
||||
From: *from,
|
||||
To: to,
|
||||
Value: value,
|
||||
Nonce: n,
|
||||
GasPrice: gasPrice,
|
||||
Gas: gas,
|
||||
Data: data,
|
||||
Input: input,
|
||||
}
|
||||
}
|
||||
|
||||
type txtestcase struct {
|
||||
from, to, n, g, gp, value, d, i string
|
||||
expectErr bool
|
||||
numMessages int
|
||||
}
|
||||
|
||||
func TestValidator(t *testing.T) {
|
||||
var (
|
||||
// use empty db, there are other tests for the abi-specific stuff
|
||||
db, _ = NewEmptyAbiDB()
|
||||
v = NewValidator(db)
|
||||
)
|
||||
testcases := []txtestcase{
|
||||
// Invalid to checksum
|
||||
{from: "000000000000000000000000000000000000dead", to: "000000000000000000000000000000000000dead",
|
||||
n: "0x01", g: "0x20", gp: "0x40", value: "0x01", numMessages: 1},
|
||||
// valid 0x000000000000000000000000000000000000dEaD
|
||||
{from: "000000000000000000000000000000000000dead", to: "0x000000000000000000000000000000000000dEaD",
|
||||
n: "0x01", g: "0x20", gp: "0x40", value: "0x01", numMessages: 0},
|
||||
// conflicting input and data
|
||||
{from: "000000000000000000000000000000000000dead", to: "0x000000000000000000000000000000000000dEaD",
|
||||
n: "0x01", g: "0x20", gp: "0x40", value: "0x01", d: "0x01", i: "0x02", expectErr: true},
|
||||
// Data can't be parsed
|
||||
{from: "000000000000000000000000000000000000dead", to: "0x000000000000000000000000000000000000dEaD",
|
||||
n: "0x01", g: "0x20", gp: "0x40", value: "0x01", d: "0x0102", numMessages: 1},
|
||||
// Data (on Input) can't be parsed
|
||||
{from: "000000000000000000000000000000000000dead", to: "0x000000000000000000000000000000000000dEaD",
|
||||
n: "0x01", g: "0x20", gp: "0x40", value: "0x01", i: "0x0102", numMessages: 1},
|
||||
// Send to 0
|
||||
{from: "000000000000000000000000000000000000dead", to: "0x0000000000000000000000000000000000000000",
|
||||
n: "0x01", g: "0x20", gp: "0x40", value: "0x01", numMessages: 1},
|
||||
// Create empty contract (no value)
|
||||
{from: "000000000000000000000000000000000000dead", to: "",
|
||||
n: "0x01", g: "0x20", gp: "0x40", value: "0x00", numMessages: 1},
|
||||
// Create empty contract (with value)
|
||||
{from: "000000000000000000000000000000000000dead", to: "",
|
||||
n: "0x01", g: "0x20", gp: "0x40", value: "0x01", expectErr: true},
|
||||
// Small payload for create
|
||||
{from: "000000000000000000000000000000000000dead", to: "",
|
||||
n: "0x01", g: "0x20", gp: "0x40", value: "0x01", d: "0x01", numMessages: 1},
|
||||
}
|
||||
for i, test := range testcases {
|
||||
msgs, err := v.ValidateTransaction(dummyTxArgs(test), nil)
|
||||
if err == nil && test.expectErr {
|
||||
t.Errorf("Test %d, expected error", i)
|
||||
for _, msg := range msgs.Messages {
|
||||
fmt.Printf("* %s: %s\n", msg.Typ, msg.Message)
|
||||
}
|
||||
}
|
||||
if err != nil && !test.expectErr {
|
||||
t.Errorf("Test %d, unexpected error: %v", i, err)
|
||||
}
|
||||
if err == nil {
|
||||
got := len(msgs.Messages)
|
||||
if got != test.numMessages {
|
||||
for _, msg := range msgs.Messages {
|
||||
fmt.Printf("* %s: %s\n", msg.Typ, msg.Message)
|
||||
}
|
||||
t.Errorf("Test %d, expected %d messages, got %d", i, test.numMessages, got)
|
||||
} else {
|
||||
//Debug printout, remove later
|
||||
for _, msg := range msgs.Messages {
|
||||
fmt.Printf("* [%d] %s: %s\n", i, msg.Typ, msg.Message)
|
||||
}
|
||||
fmt.Println()
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
import "testing"
|
||||
|
||||
func TestPasswordValidation(t *testing.T) {
|
||||
testcases := []struct {
|
||||
|
||||
File diff suppressed because one or more lines are too long
1
signer/fourbyte/4byte.json
Normal file
1
signer/fourbyte/4byte.json
Normal file
File diff suppressed because one or more lines are too long
164
signer/fourbyte/abi.go
Normal file
164
signer/fourbyte/abi.go
Normal file
@ -0,0 +1,164 @@
|
||||
// Copyright 2018 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 fourbyte
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"regexp"
|
||||
"strings"
|
||||
|
||||
"github.com/ethereum/go-ethereum/accounts/abi"
|
||||
"github.com/ethereum/go-ethereum/common"
|
||||
)
|
||||
|
||||
// decodedCallData is an internal type to represent a method call parsed according
|
||||
// to an ABI method signature.
|
||||
type decodedCallData struct {
|
||||
signature string
|
||||
name string
|
||||
inputs []decodedArgument
|
||||
}
|
||||
|
||||
// decodedArgument is an internal type to represent an argument parsed according
|
||||
// to an ABI method signature.
|
||||
type decodedArgument struct {
|
||||
soltype abi.Argument
|
||||
value interface{}
|
||||
}
|
||||
|
||||
// String implements stringer interface, tries to use the underlying value-type
|
||||
func (arg decodedArgument) String() string {
|
||||
var value string
|
||||
switch val := arg.value.(type) {
|
||||
case fmt.Stringer:
|
||||
value = val.String()
|
||||
default:
|
||||
value = fmt.Sprintf("%v", val)
|
||||
}
|
||||
return fmt.Sprintf("%v: %v", arg.soltype.Type.String(), value)
|
||||
}
|
||||
|
||||
// String implements stringer interface for decodedCallData
|
||||
func (cd decodedCallData) String() string {
|
||||
args := make([]string, len(cd.inputs))
|
||||
for i, arg := range cd.inputs {
|
||||
args[i] = arg.String()
|
||||
}
|
||||
return fmt.Sprintf("%s(%s)", cd.name, strings.Join(args, ","))
|
||||
}
|
||||
|
||||
// verifySelector checks whether the ABI encoded data blob matches the requested
|
||||
// function signature.
|
||||
func verifySelector(selector string, calldata []byte) (*decodedCallData, error) {
|
||||
// Parse the selector into an ABI JSON spec
|
||||
abidata, err := parseSelector(selector)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
// Parse the call data according to the requested selector
|
||||
return parseCallData(calldata, string(abidata))
|
||||
}
|
||||
|
||||
// selectorRegexp is used to validate that a 4byte database selector corresponds
|
||||
// to a valid ABI function declaration.
|
||||
//
|
||||
// Note, although uppercase letters are not part of the ABI spec, this regexp
|
||||
// still accepts it as the general format is valid. It will be rejected later
|
||||
// by the type checker.
|
||||
var selectorRegexp = regexp.MustCompile(`^([^\)]+)\(([A-Za-z0-9,\[\]]*)\)`)
|
||||
|
||||
// parseSelector converts a method selector into an ABI JSON spec. The returned
|
||||
// data is a valid JSON string which can be consumed by the standard abi package.
|
||||
func parseSelector(selector string) ([]byte, error) {
|
||||
// Define a tiny fake ABI struct for JSON marshalling
|
||||
type fakeArg struct {
|
||||
Type string `json:"type"`
|
||||
}
|
||||
type fakeABI struct {
|
||||
Name string `json:"name"`
|
||||
Type string `json:"type"`
|
||||
Inputs []fakeArg `json:"inputs"`
|
||||
}
|
||||
// Validate the selector and extract it's components
|
||||
groups := selectorRegexp.FindStringSubmatch(selector)
|
||||
if len(groups) != 3 {
|
||||
return nil, fmt.Errorf("invalid selector %s (%v matches)", selector, len(groups))
|
||||
}
|
||||
name := groups[1]
|
||||
args := groups[2]
|
||||
|
||||
// Reassemble the fake ABI and constuct the JSON
|
||||
arguments := make([]fakeArg, 0)
|
||||
if len(args) > 0 {
|
||||
for _, arg := range strings.Split(args, ",") {
|
||||
arguments = append(arguments, fakeArg{arg})
|
||||
}
|
||||
}
|
||||
return json.Marshal([]fakeABI{{name, "function", arguments}})
|
||||
}
|
||||
|
||||
// parseCallData matches the provided call data against the ABI definition and
|
||||
// returns a struct containing the actual go-typed values.
|
||||
func parseCallData(calldata []byte, abidata string) (*decodedCallData, error) {
|
||||
// Validate the call data that it has the 4byte prefix and the rest divisible by 32 bytes
|
||||
if len(calldata) < 4 {
|
||||
return nil, fmt.Errorf("invalid call data, incomplete method signature (%d bytes < 4)", len(calldata))
|
||||
}
|
||||
sigdata := calldata[:4]
|
||||
|
||||
argdata := calldata[4:]
|
||||
if len(argdata)%32 != 0 {
|
||||
return nil, fmt.Errorf("invalid call data; length should be a multiple of 32 bytes (was %d)", len(argdata))
|
||||
}
|
||||
// Validate the called method and upack the call data accordingly
|
||||
abispec, err := abi.JSON(strings.NewReader(abidata))
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("invalid method signature (%s): %v", abidata, err)
|
||||
}
|
||||
method, err := abispec.MethodById(sigdata)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
values, err := method.Inputs.UnpackValues(argdata)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
// Everything valid, assemble the call infos for the signer
|
||||
decoded := decodedCallData{signature: method.Sig(), name: method.Name}
|
||||
for i := 0; i < len(method.Inputs); i++ {
|
||||
decoded.inputs = append(decoded.inputs, decodedArgument{
|
||||
soltype: method.Inputs[i],
|
||||
value: values[i],
|
||||
})
|
||||
}
|
||||
// We're finished decoding the data. At this point, we encode the decoded data
|
||||
// to see if it matches with the original data. If we didn't do that, it would
|
||||
// be possible to stuff extra data into the arguments, which is not detected
|
||||
// by merely decoding the data.
|
||||
encoded, err := method.Inputs.PackValues(values)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if !bytes.Equal(encoded, argdata) {
|
||||
was := common.Bytes2Hex(encoded)
|
||||
exp := common.Bytes2Hex(argdata)
|
||||
return nil, fmt.Errorf("WARNING: Supplied data is stuffed with extra data. \nWant %s\nHave %s\nfor method %v", exp, was, method.Sig())
|
||||
}
|
||||
return &decoded, nil
|
||||
}
|
||||
@ -1,24 +1,22 @@
|
||||
// Copyright 2018 The go-ethereum Authors
|
||||
// This file is part of go-ethereum.
|
||||
// This file is part of the go-ethereum library.
|
||||
//
|
||||
// go-ethereum is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// 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.
|
||||
//
|
||||
// go-ethereum is distributed in the hope that it will be useful,
|
||||
// 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 General Public License for more details.
|
||||
// GNU Lesser General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
||||
// 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 core
|
||||
package fourbyte
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"math/big"
|
||||
"reflect"
|
||||
"strings"
|
||||
@ -29,7 +27,6 @@ import (
|
||||
)
|
||||
|
||||
func verify(t *testing.T, jsondata, calldata string, exp []interface{}) {
|
||||
|
||||
abispec, err := abi.JSON(strings.NewReader(jsondata))
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
@ -53,6 +50,7 @@ func verify(t *testing.T, jsondata, calldata string, exp []interface{}) {
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func TestNewUnpacker(t *testing.T) {
|
||||
type unpackTest struct {
|
||||
jsondata string
|
||||
@ -96,11 +94,9 @@ func TestNewUnpacker(t *testing.T) {
|
||||
for _, c := range testcases {
|
||||
verify(t, c.jsondata, c.calldata, c.exp)
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
func TestCalldataDecoding(t *testing.T) {
|
||||
|
||||
// send(uint256) : a52c101e
|
||||
// compareAndApprove(address,uint256,uint256) : 751e1079
|
||||
// issue(address[],uint256) : 42958b54
|
||||
@ -111,7 +107,7 @@ func TestCalldataDecoding(t *testing.T) {
|
||||
{"type":"function","name":"issue","inputs":[{"name":"a","type":"address[]"},{"name":"a","type":"uint256"}]},
|
||||
{"type":"function","name":"sam","inputs":[{"name":"a","type":"bytes"},{"name":"a","type":"bool"},{"name":"a","type":"uint256[]"}]}
|
||||
]`
|
||||
//Expected failures
|
||||
// Expected failures
|
||||
for i, hexdata := range []string{
|
||||
"a52c101e00000000000000000000000000000000000000000000000000000000000000120000000000000000000000000000000000000000000000000000000000000042",
|
||||
"a52c101e000000000000000000000000000000000000000000000000000000000000001200",
|
||||
@ -122,9 +118,9 @@ func TestCalldataDecoding(t *testing.T) {
|
||||
// Too short
|
||||
"751e10790000000000000000000000000000000000000000000000000000000000000012",
|
||||
"751e1079FFffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
|
||||
//Not valid multiple of 32
|
||||
// Not valid multiple of 32
|
||||
"deadbeef00000000000000000000000000000000000000000000000000000000000000",
|
||||
//Too short 'issue'
|
||||
// Too short 'issue'
|
||||
"42958b5400000000000000000000000000000000000000000000000000000000000000120000000000000000000000000000000000000000000000000000000000000042",
|
||||
// Too short compareAndApprove
|
||||
"a52c101e00ff0000000000000000000000000000000000000000000000000000000000120000000000000000000000000000000000000000000000000000000000000042",
|
||||
@ -137,7 +133,7 @@ func TestCalldataDecoding(t *testing.T) {
|
||||
t.Errorf("test %d: expected decoding to fail: %s", i, hexdata)
|
||||
}
|
||||
}
|
||||
//Expected success
|
||||
// Expected success
|
||||
for i, hexdata := range []string{
|
||||
// From https://github.com/ethereum/wiki/wiki/Ethereum-Contract-ABI
|
||||
"a5643bf20000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000000464617665000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000003",
|
||||
@ -147,7 +143,7 @@ func TestCalldataDecoding(t *testing.T) {
|
||||
"42958b54" +
|
||||
// start of dynamic type
|
||||
"0000000000000000000000000000000000000000000000000000000000000040" +
|
||||
//uint256
|
||||
// uint256
|
||||
"0000000000000000000000000000000000000000000000000000000000000001" +
|
||||
// length of array
|
||||
"0000000000000000000000000000000000000000000000000000000000000002" +
|
||||
@ -162,79 +158,7 @@ func TestCalldataDecoding(t *testing.T) {
|
||||
}
|
||||
}
|
||||
|
||||
func TestSelectorUnmarshalling(t *testing.T) {
|
||||
var (
|
||||
db *AbiDb
|
||||
err error
|
||||
abistring []byte
|
||||
abistruct abi.ABI
|
||||
)
|
||||
|
||||
db, err = NewAbiDBFromFile("../../cmd/clef/4byte.json")
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
fmt.Printf("DB size %v\n", db.Size())
|
||||
for id, selector := range db.db {
|
||||
|
||||
abistring, err = MethodSelectorToAbi(selector)
|
||||
if err != nil {
|
||||
t.Error(err)
|
||||
return
|
||||
}
|
||||
abistruct, err = abi.JSON(strings.NewReader(string(abistring)))
|
||||
if err != nil {
|
||||
t.Error(err)
|
||||
return
|
||||
}
|
||||
m, err := abistruct.MethodById(common.Hex2Bytes(id[2:]))
|
||||
if err != nil {
|
||||
t.Error(err)
|
||||
return
|
||||
}
|
||||
if m.Sig() != selector {
|
||||
t.Errorf("Expected equality: %v != %v", m.Sig(), selector)
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
func TestCustomABI(t *testing.T) {
|
||||
d, err := ioutil.TempDir("", "signer-4byte-test")
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
filename := fmt.Sprintf("%s/4byte_custom.json", d)
|
||||
abidb, err := NewAbiDBFromFiles([]byte(""), filename)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
// Now we'll remove all existing signatures
|
||||
abidb.db = make(map[string]string)
|
||||
calldata := common.Hex2Bytes("a52c101edeadbeef")
|
||||
_, err = abidb.LookupMethodSelector(calldata)
|
||||
if err == nil {
|
||||
t.Fatalf("Should not find a match on empty db")
|
||||
}
|
||||
if err = abidb.AddSignature("send(uint256)", calldata); err != nil {
|
||||
t.Fatalf("Failed to save file: %v", err)
|
||||
}
|
||||
_, err = abidb.LookupMethodSelector(calldata)
|
||||
if err != nil {
|
||||
t.Fatalf("Should find a match for abi signature, got: %v", err)
|
||||
}
|
||||
//Check that it wrote to file
|
||||
abidb2, err := NewAbiDBFromFile(filename)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create new abidb: %v", err)
|
||||
}
|
||||
_, err = abidb2.LookupMethodSelector(calldata)
|
||||
if err != nil {
|
||||
t.Fatalf("Save failed: should find a match for abi signature after loading from disk")
|
||||
}
|
||||
}
|
||||
|
||||
func TestMaliciousAbiStrings(t *testing.T) {
|
||||
func TestMaliciousABIStrings(t *testing.T) {
|
||||
tests := []string{
|
||||
"func(uint256,uint256,[]uint256)",
|
||||
"func(uint256,uint256,uint256,)",
|
||||
@ -242,7 +166,7 @@ func TestMaliciousAbiStrings(t *testing.T) {
|
||||
}
|
||||
data := common.Hex2Bytes("4401a6e40000000000000000000000000000000000000000000000000000000000000012")
|
||||
for i, tt := range tests {
|
||||
_, err := testSelector(tt, data)
|
||||
_, err := verifySelector(tt, data)
|
||||
if err == nil {
|
||||
t.Errorf("test %d: expected error for selector '%v'", i, tt)
|
||||
}
|
||||
143
signer/fourbyte/fourbyte.go
Normal file
143
signer/fourbyte/fourbyte.go
Normal file
@ -0,0 +1,143 @@
|
||||
// Copyright 2019 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/>.
|
||||
|
||||
//go:generate go-bindata -nometadata -o 4byte.go -pkg fourbyte 4byte.json
|
||||
//go:generate gofmt -s -w 4byte.go
|
||||
|
||||
// Package fourbyte contains the 4byte database.
|
||||
package fourbyte
|
||||
|
||||
import (
|
||||
"encoding/hex"
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"os"
|
||||
)
|
||||
|
||||
// Database is a 4byte database with the possibility of maintaining an immutable
|
||||
// set (embedded) into the process and a mutable set (loaded and written to file).
|
||||
type Database struct {
|
||||
embedded map[string]string
|
||||
custom map[string]string
|
||||
customPath string
|
||||
}
|
||||
|
||||
// newEmpty exists for testing purposes.
|
||||
func newEmpty() *Database {
|
||||
return &Database{
|
||||
embedded: make(map[string]string),
|
||||
custom: make(map[string]string),
|
||||
}
|
||||
}
|
||||
|
||||
// New loads the standard signature database embedded in the package.
|
||||
func New() (*Database, error) {
|
||||
return NewWithFile("")
|
||||
}
|
||||
|
||||
// NewFromFile loads signature database from file, and errors if the file is not
|
||||
// valid JSON. The constructor does no other validation of contents. This method
|
||||
// does not load the embedded 4byte database.
|
||||
//
|
||||
// The provided path will be used to write new values into if they are submitted
|
||||
// via the API.
|
||||
func NewFromFile(path string) (*Database, error) {
|
||||
raw, err := os.Open(path)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer raw.Close()
|
||||
|
||||
db := newEmpty()
|
||||
if err := json.NewDecoder(raw).Decode(&db.embedded); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return db, nil
|
||||
}
|
||||
|
||||
// NewWithFile loads both the standard signature database (embedded resource
|
||||
// file) as well as a custom database. The latter will be used to write new
|
||||
// values into if they are submitted via the API.
|
||||
func NewWithFile(path string) (*Database, error) {
|
||||
db := &Database{make(map[string]string), make(map[string]string), path}
|
||||
db.customPath = path
|
||||
|
||||
blob, err := Asset("4byte.json")
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if err := json.Unmarshal(blob, &db.embedded); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
// Custom file may not exist. Will be created during save, if needed.
|
||||
if _, err := os.Stat(path); err == nil {
|
||||
if blob, err = ioutil.ReadFile(path); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if err := json.Unmarshal(blob, &db.custom); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
return db, nil
|
||||
}
|
||||
|
||||
// Size returns the number of 4byte entries in the embedded and custom datasets.
|
||||
func (db *Database) Size() (int, int) {
|
||||
return len(db.embedded), len(db.custom)
|
||||
}
|
||||
|
||||
// Selector checks the given 4byte ID against the known ABI methods.
|
||||
//
|
||||
// This method does not validate the match, it's assumed the caller will do.
|
||||
func (db *Database) Selector(id []byte) (string, error) {
|
||||
if len(id) < 4 {
|
||||
return "", fmt.Errorf("expected 4-byte id, got %d", len(id))
|
||||
}
|
||||
sig := hex.EncodeToString(id[:4])
|
||||
if selector, exists := db.embedded[sig]; exists {
|
||||
return selector, nil
|
||||
}
|
||||
if selector, exists := db.custom[sig]; exists {
|
||||
return selector, nil
|
||||
}
|
||||
return "", fmt.Errorf("signature %v not found", sig)
|
||||
}
|
||||
|
||||
// AddSelector inserts a new 4byte entry into the database. If custom database
|
||||
// saving is enabled, the new dataset is also persisted to disk.
|
||||
//
|
||||
// Node, this method does _not_ validate the correctness of the data. It assumes
|
||||
// the caller has already done so.
|
||||
func (db *Database) AddSelector(selector string, data []byte) error {
|
||||
// If the selector is already known, skip duplicating it
|
||||
if len(data) < 4 {
|
||||
return nil
|
||||
}
|
||||
if _, err := db.Selector(data[:4]); err == nil {
|
||||
return nil
|
||||
}
|
||||
// Inject the custom selector into the database and persist if needed
|
||||
db.custom[hex.EncodeToString(data[:4])] = selector
|
||||
if db.customPath == "" {
|
||||
return nil
|
||||
}
|
||||
blob, err := json.Marshal(db.custom)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
return ioutil.WriteFile(db.customPath, blob, 0600)
|
||||
}
|
||||
91
signer/fourbyte/fourbyte_test.go
Normal file
91
signer/fourbyte/fourbyte_test.go
Normal file
@ -0,0 +1,91 @@
|
||||
// Copyright 2018 The go-ethereum Authors
|
||||
// This file is part of go-ethereum.
|
||||
//
|
||||
// go-ethereum is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// go-ethereum 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 General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
package fourbyte
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"io/ioutil"
|
||||
"strings"
|
||||
"testing"
|
||||
|
||||
"github.com/ethereum/go-ethereum/accounts/abi"
|
||||
"github.com/ethereum/go-ethereum/common"
|
||||
)
|
||||
|
||||
// Tests that all the selectors contained in the 4byte database are valid.
|
||||
func TestEmbeddedDatabase(t *testing.T) {
|
||||
db, err := New()
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
for id, selector := range db.embedded {
|
||||
abistring, err := parseSelector(selector)
|
||||
if err != nil {
|
||||
t.Errorf("Failed to convert selector to ABI: %v", err)
|
||||
continue
|
||||
}
|
||||
abistruct, err := abi.JSON(strings.NewReader(string(abistring)))
|
||||
if err != nil {
|
||||
t.Errorf("Failed to parse ABI: %v", err)
|
||||
continue
|
||||
}
|
||||
m, err := abistruct.MethodById(common.Hex2Bytes(id))
|
||||
if err != nil {
|
||||
t.Errorf("Failed to get method by id (%s): %v", id, err)
|
||||
continue
|
||||
}
|
||||
if m.Sig() != selector {
|
||||
t.Errorf("Selector mismatch: have %v, want %v", m.Sig(), selector)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Tests that custom 4byte datasets can be handled too.
|
||||
func TestCustomDatabase(t *testing.T) {
|
||||
// Create a new custom 4byte database with no embedded component
|
||||
tmpdir, err := ioutil.TempDir("", "signer-4byte-test")
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
filename := fmt.Sprintf("%s/4byte_custom.json", tmpdir)
|
||||
|
||||
db, err := NewWithFile(filename)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
db.embedded = make(map[string]string)
|
||||
|
||||
// Ensure the database is empty, insert and verify
|
||||
calldata := common.Hex2Bytes("a52c101edeadbeef")
|
||||
if _, err = db.Selector(calldata); err == nil {
|
||||
t.Fatalf("Should not find a match on empty database")
|
||||
}
|
||||
if err = db.AddSelector("send(uint256)", calldata); err != nil {
|
||||
t.Fatalf("Failed to save file: %v", err)
|
||||
}
|
||||
if _, err = db.Selector(calldata); err != nil {
|
||||
t.Fatalf("Failed to find a match for abi signature: %v", err)
|
||||
}
|
||||
// Check that the file as persisted to disk by creating a new instance
|
||||
db2, err := NewFromFile(filename)
|
||||
if err != nil {
|
||||
t.Fatalf("Failed to create new abidb: %v", err)
|
||||
}
|
||||
if _, err = db2.Selector(calldata); err != nil {
|
||||
t.Fatalf("Failed to find a match for persisted abi signature: %v", err)
|
||||
}
|
||||
}
|
||||
117
signer/fourbyte/validation.go
Normal file
117
signer/fourbyte/validation.go
Normal file
@ -0,0 +1,117 @@
|
||||
// Copyright 2018 The go-ethereum Authors
|
||||
// This file is part of go-ethereum.
|
||||
//
|
||||
// go-ethereum is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// go-ethereum 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 General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
package fourbyte
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"errors"
|
||||
"fmt"
|
||||
"math/big"
|
||||
|
||||
"github.com/ethereum/go-ethereum/common"
|
||||
"github.com/ethereum/go-ethereum/signer/core"
|
||||
)
|
||||
|
||||
// ValidateTransaction does a number of checks on the supplied transaction, and
|
||||
// returns either a list of warnings, or an error (indicating that the transaction
|
||||
// should be immediately rejected).
|
||||
func (db *Database) ValidateTransaction(selector *string, tx *core.SendTxArgs) (*core.ValidationMessages, error) {
|
||||
messages := new(core.ValidationMessages)
|
||||
|
||||
// Prevent accidental erroneous usage of both 'input' and 'data' (show stopper)
|
||||
if tx.Data != nil && tx.Input != nil && !bytes.Equal(*tx.Data, *tx.Input) {
|
||||
return nil, errors.New(`ambiguous request: both "data" and "input" are set and are not identical`)
|
||||
}
|
||||
// Place data on 'data', and nil 'input'
|
||||
var data []byte
|
||||
if tx.Input != nil {
|
||||
tx.Data = tx.Input
|
||||
tx.Input = nil
|
||||
}
|
||||
if tx.Data != nil {
|
||||
data = *tx.Data
|
||||
}
|
||||
// Contract creation doesn't validate call data, handle first
|
||||
if tx.To == nil {
|
||||
// Contract creation should contain sufficient data to deploy a contract. A
|
||||
// typical error is omitting sender due to some quirk in the javascript call
|
||||
// e.g. https://github.com/ethereum/go-ethereum/issues/16106.
|
||||
if len(data) == 0 {
|
||||
// Prevent sending ether into black hole (show stopper)
|
||||
if tx.Value.ToInt().Cmp(big.NewInt(0)) > 0 {
|
||||
return nil, errors.New("tx will create contract with value but empty code")
|
||||
}
|
||||
// No value submitted at least, critically Warn, but don't blow up
|
||||
messages.Crit("Transaction will create contract with empty code")
|
||||
} else if len(data) < 40 { // arbitrary heuristic limit
|
||||
messages.Warn(fmt.Sprintf("Transaction will will create contract, but payload is suspiciously small (%d bytes)", len(data)))
|
||||
}
|
||||
// Method selector should be nil for contract creation
|
||||
if selector != nil {
|
||||
messages.Warn("Transaction will create contract, but method selector supplied, indicating intent to call a method")
|
||||
}
|
||||
return messages, nil
|
||||
}
|
||||
// Not a contract creation, validate as a plain transaction
|
||||
if !tx.To.ValidChecksum() {
|
||||
messages.Warn("Invalid checksum on recipient address")
|
||||
}
|
||||
if bytes.Equal(tx.To.Address().Bytes(), common.Address{}.Bytes()) {
|
||||
messages.Crit("Transaction recipient is the zero address")
|
||||
}
|
||||
// Semantic fields validated, try to make heads or tails of the call data
|
||||
db.validateCallData(selector, data, messages)
|
||||
return messages, nil
|
||||
}
|
||||
|
||||
// validateCallData checks if the ABI call-data + method selector (if given) can
|
||||
// be parsed and seems to match.
|
||||
func (db *Database) validateCallData(selector *string, data []byte, messages *core.ValidationMessages) {
|
||||
// If the data is empty, we have a plain value transfer, nothing more to do
|
||||
if len(data) == 0 {
|
||||
return
|
||||
}
|
||||
// Validate the call data that it has the 4byte prefix and the rest divisible by 32 bytes
|
||||
if len(data) < 4 {
|
||||
messages.Warn("Transaction data is not valid ABI (missing the 4 byte call prefix)")
|
||||
return
|
||||
}
|
||||
if n := len(data) - 4; n%32 != 0 {
|
||||
messages.Warn(fmt.Sprintf("Transaction data is not valid ABI (length should be a multiple of 32 (was %d))", n))
|
||||
}
|
||||
// If a custom method selector was provided, validate with that
|
||||
if selector != nil {
|
||||
if info, err := verifySelector(*selector, data); err != nil {
|
||||
messages.Warn(fmt.Sprintf("Transaction contains data, but provided ABI signature could not be matched: %v", err))
|
||||
} else {
|
||||
messages.Info(info.String())
|
||||
db.AddSelector(*selector, data[:4])
|
||||
}
|
||||
return
|
||||
}
|
||||
// No method selector was provided, check the database for embedded ones
|
||||
embedded, err := db.Selector(data[:4])
|
||||
if err != nil {
|
||||
messages.Warn(fmt.Sprintf("Transaction contains data, but the ABI signature could not be found: %v", err))
|
||||
return
|
||||
}
|
||||
if info, err := verifySelector(embedded, data); err != nil {
|
||||
messages.Warn(fmt.Sprintf("Transaction contains data, but provided ABI signature could not be varified: %v", err))
|
||||
} else {
|
||||
messages.Info(info.String())
|
||||
}
|
||||
}
|
||||
137
signer/fourbyte/validation_test.go
Normal file
137
signer/fourbyte/validation_test.go
Normal file
@ -0,0 +1,137 @@
|
||||
// Copyright 2018 The go-ethereum Authors
|
||||
// This file is part of go-ethereum.
|
||||
//
|
||||
// go-ethereum is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// go-ethereum 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 General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
package fourbyte
|
||||
|
||||
import (
|
||||
"math/big"
|
||||
"testing"
|
||||
|
||||
"github.com/ethereum/go-ethereum/common"
|
||||
"github.com/ethereum/go-ethereum/common/hexutil"
|
||||
"github.com/ethereum/go-ethereum/signer/core"
|
||||
)
|
||||
|
||||
func mixAddr(a string) (*common.MixedcaseAddress, error) {
|
||||
return common.NewMixedcaseAddressFromString(a)
|
||||
}
|
||||
func toHexBig(h string) hexutil.Big {
|
||||
b := big.NewInt(0).SetBytes(common.FromHex(h))
|
||||
return hexutil.Big(*b)
|
||||
}
|
||||
func toHexUint(h string) hexutil.Uint64 {
|
||||
b := big.NewInt(0).SetBytes(common.FromHex(h))
|
||||
return hexutil.Uint64(b.Uint64())
|
||||
}
|
||||
func dummyTxArgs(t txtestcase) *core.SendTxArgs {
|
||||
to, _ := mixAddr(t.to)
|
||||
from, _ := mixAddr(t.from)
|
||||
n := toHexUint(t.n)
|
||||
gas := toHexUint(t.g)
|
||||
gasPrice := toHexBig(t.gp)
|
||||
value := toHexBig(t.value)
|
||||
var (
|
||||
data, input *hexutil.Bytes
|
||||
)
|
||||
if t.d != "" {
|
||||
a := hexutil.Bytes(common.FromHex(t.d))
|
||||
data = &a
|
||||
}
|
||||
if t.i != "" {
|
||||
a := hexutil.Bytes(common.FromHex(t.i))
|
||||
input = &a
|
||||
|
||||
}
|
||||
return &core.SendTxArgs{
|
||||
From: *from,
|
||||
To: to,
|
||||
Value: value,
|
||||
Nonce: n,
|
||||
GasPrice: gasPrice,
|
||||
Gas: gas,
|
||||
Data: data,
|
||||
Input: input,
|
||||
}
|
||||
}
|
||||
|
||||
type txtestcase struct {
|
||||
from, to, n, g, gp, value, d, i string
|
||||
expectErr bool
|
||||
numMessages int
|
||||
}
|
||||
|
||||
func TestTransactionValidation(t *testing.T) {
|
||||
var (
|
||||
// use empty db, there are other tests for the abi-specific stuff
|
||||
db = newEmpty()
|
||||
)
|
||||
testcases := []txtestcase{
|
||||
// Invalid to checksum
|
||||
{from: "000000000000000000000000000000000000dead", to: "000000000000000000000000000000000000dead",
|
||||
n: "0x01", g: "0x20", gp: "0x40", value: "0x01", numMessages: 1},
|
||||
// valid 0x000000000000000000000000000000000000dEaD
|
||||
{from: "000000000000000000000000000000000000dead", to: "0x000000000000000000000000000000000000dEaD",
|
||||
n: "0x01", g: "0x20", gp: "0x40", value: "0x01", numMessages: 0},
|
||||
// conflicting input and data
|
||||
{from: "000000000000000000000000000000000000dead", to: "0x000000000000000000000000000000000000dEaD",
|
||||
n: "0x01", g: "0x20", gp: "0x40", value: "0x01", d: "0x01", i: "0x02", expectErr: true},
|
||||
// Data can't be parsed
|
||||
{from: "000000000000000000000000000000000000dead", to: "0x000000000000000000000000000000000000dEaD",
|
||||
n: "0x01", g: "0x20", gp: "0x40", value: "0x01", d: "0x0102", numMessages: 1},
|
||||
// Data (on Input) can't be parsed
|
||||
{from: "000000000000000000000000000000000000dead", to: "0x000000000000000000000000000000000000dEaD",
|
||||
n: "0x01", g: "0x20", gp: "0x40", value: "0x01", i: "0x0102", numMessages: 1},
|
||||
// Send to 0
|
||||
{from: "000000000000000000000000000000000000dead", to: "0x0000000000000000000000000000000000000000",
|
||||
n: "0x01", g: "0x20", gp: "0x40", value: "0x01", numMessages: 1},
|
||||
// Create empty contract (no value)
|
||||
{from: "000000000000000000000000000000000000dead", to: "",
|
||||
n: "0x01", g: "0x20", gp: "0x40", value: "0x00", numMessages: 1},
|
||||
// Create empty contract (with value)
|
||||
{from: "000000000000000000000000000000000000dead", to: "",
|
||||
n: "0x01", g: "0x20", gp: "0x40", value: "0x01", expectErr: true},
|
||||
// Small payload for create
|
||||
{from: "000000000000000000000000000000000000dead", to: "",
|
||||
n: "0x01", g: "0x20", gp: "0x40", value: "0x01", d: "0x01", numMessages: 1},
|
||||
}
|
||||
for i, test := range testcases {
|
||||
msgs, err := db.ValidateTransaction(nil, dummyTxArgs(test))
|
||||
if err == nil && test.expectErr {
|
||||
t.Errorf("Test %d, expected error", i)
|
||||
for _, msg := range msgs.Messages {
|
||||
t.Logf("* %s: %s", msg.Typ, msg.Message)
|
||||
}
|
||||
}
|
||||
if err != nil && !test.expectErr {
|
||||
t.Errorf("Test %d, unexpected error: %v", i, err)
|
||||
}
|
||||
if err == nil {
|
||||
got := len(msgs.Messages)
|
||||
if got != test.numMessages {
|
||||
for _, msg := range msgs.Messages {
|
||||
t.Logf("* %s: %s", msg.Typ, msg.Message)
|
||||
}
|
||||
t.Errorf("Test %d, expected %d messages, got %d", i, test.numMessages, got)
|
||||
} else {
|
||||
//Debug printout, remove later
|
||||
for _, msg := range msgs.Messages {
|
||||
t.Logf("* [%d] %s: %s", i, msg.Typ, msg.Message)
|
||||
}
|
||||
t.Log()
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user