Polished docstrings, ran goimports and swapped fmt.Errorf with errors.New where possible

signer/core/api_test.go

@@ -245,21 +245,15 @@ func TestNewAcc(t *testing.T) {
 	}
 }
 
-func signApplicationValidator(t *testing.T) {
+func signTextValidator(t *testing.T) {
 	// TODO
 }
 
 func signApplicationClique(t *testing.T) {
-	// https://etherscan.io/block/1
-	//header := &types.Header{
-	//	"0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3",
-	//	"0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
-	//	"0x05a56e2d52c817161883f50c441c3228cfe54d9f",
-	//}
 	// TODO
 }
 
-func signDataPlain(t *testing.T) {
+func signTextPlain(t *testing.T) {
 	api, control := setup(t)
 	//Create two accounts
 	createAccount(control, api, t)
@@ -273,7 +267,7 @@ func signDataPlain(t *testing.T) {
 
 	control <- "Y"
 	control <- "wrongpassword"
-	h, err := api.SignData(context.Background(), DataPlain.Mime, a, []byte("EHLO world"))
+	h, err := api.SignData(context.Background(), TextPlain.Mime, a, []byte("EHLO world"))
 	if h != nil {
 		t.Errorf("Expected nil-data, got %x", h)
 	}
@@ -281,7 +275,7 @@ func signDataPlain(t *testing.T) {
 		t.Errorf("Expected ErrLocked! %v", err)
 	}
 	control <- "No way"
-	h, err = api.SignData(context.Background(), DataPlain.Mime, a, []byte("EHLO world"))
+	h, err = api.SignData(context.Background(), TextPlain.Mime, a, []byte("EHLO world"))
 	if h != nil {
 		t.Errorf("Expected nil-data, got %x", h)
 	}
@@ -290,7 +284,7 @@ func signDataPlain(t *testing.T) {
 	}
 	control <- "Y"
 	control <- "a_long_password"
-	h, err = api.SignData(context.Background(), DataPlain.Mime, a, []byte("EHLO world"))
+	h, err = api.SignData(context.Background(), TextPlain.Mime, a, []byte("EHLO world"))
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -299,22 +293,22 @@ func signDataPlain(t *testing.T) {
 	}
 }
 
-func signDataStructured(t *testing.T) {
+func signTypedData(t *testing.T) {
 	// TODO
 }
 
 func TestSignData(t *testing.T) {
 	// application/validator or `0x00`
-	signApplicationValidator(t)
+	signTextValidator(t)
 
-	// application/clique or `0x01`
+	// data/structured `0x01`
+	signTypedData(t)
+
+	// application/clique or `0x02`
 	signApplicationClique(t)
 
-	// data/plain or `0x45`
-	signDataPlain(t)
-
-	// data/structured `0x46`
-	signDataStructured(t)
+	// text/plain or `0x45`
+	signTextPlain(t)
 }
 
 func mkTestTx(from common.MixedcaseAddress) SendTxArgs {

signer/core/apiv2.go

@@ -1,259 +0,0 @@
-package core
-
-import (
-	"bytes"
-	"context"
-	"encoding/hex"
-	"fmt"
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/common/hexutil"
-	"github.com/ethereum/go-ethereum/crypto"
-	"math/big"
-	"sort"
-	"strings"
-	"unicode"
-)
-
-type TypedData struct {
-	Types       EIP712Types   `json:"types"`
-	PrimaryType string        `json:"primaryType"`
-	Domain      EIP712Domain  `json:"domain"`
-	Message     EIP712Message `json:"message"`
-}
-
-type EIP712Types map[string][]map[string]string
-
-type EIP712TypePriority struct {
-	Type  string
-	Value uint
-}
-
-type EIP712Domain struct {
-	Name              string         `json:"name"`
-	Version           string         `json:"version"`
-	ChainId           *big.Int       `json:"chainId"`
-	VerifyingContract common.Address `json:"verifyingContract"`
-	Salt              hexutil.Bytes  `json:"salt"`
-}
-
-type EIP712Message map[string]interface{}
-
-// Typed data according to EIP712
-//
-// hash = keccak256("\x19${byteVersion}${domainSeparator}${hashStruct(message)}")
-func (api *SignerAPI) SignTypedData(ctx context.Context, addr common.MixedcaseAddress, data TypedData) (hexutil.Bytes, error) {
-	if err := data.Domain.IsValid(); err != nil {
-		return nil, err
-	}
-	if data.PrimaryType == "" {
-		return nil, fmt.Errorf("primary type undefined")
-	}
-
-	domainTypes := EIP712Types{
-		"EIP712Domain": data.Types["EIP712Domain"],
-	}
-	domainSeparator, err := hashStruct(domainTypes, data.Domain.Values(), "")
-	if err != nil {
-		return nil, err
-	}
-
-	delete(data.Types, "EIP712Domain")
-	typedDataHash, err := hashStruct(data.Types, data.Message, data.PrimaryType)
-	if err != nil {
-		return nil, err
-	}
-
-	fmt.Println("domainSeparator", domainSeparator.String())
-	fmt.Println("typedDataHash", typedDataHash.String())
-	return common.FromHex("0xdeadbeef"), nil
-}
-
-// `encode(domainSeparator : 𝔹²⁵⁶, message : 𝕊) = "\x19\x01" ‖ domainSeparator ‖ hashStruct(message)`
-func hashStruct(types EIP712Types, message EIP712Message, primaryType string) (common.Hash, error) {
-	if primaryType != "" {
-		if types[primaryType] == nil {
-			return common.Hash{}, fmt.Errorf("primaryType specified but undefined")
-		}
-	}
-
-	typeEncoding, err := encodeType(types, primaryType)
-	if err != nil {
-		return common.Hash{}, err
-	}
-	typeHash := hex.EncodeToString(crypto.Keccak256([]byte(typeEncoding)))
-
-	dataEncoding, err := encodeData(message)
-	if err != nil {
-		return common.Hash{}, err
-	}
-	dataHash := hex.EncodeToString(crypto.Keccak256([]byte(dataEncoding)))
-
-	var buffer bytes.Buffer
-	buffer.WriteString(typeHash)
-	buffer.WriteString(dataHash)
-	hash := common.BytesToHash(crypto.Keccak256(buffer.Bytes()))
-
-	return hash, nil
-}
-
-// encodeType transforms the given types into an encoding of the form
-// `name ‖ "(" ‖ member₁ ‖ "," ‖ member₂ ‖ "," ‖ … ‖ memberₙ ")"`
-//
-// Each member is written as `type ‖ " " ‖ name` encodings cascade down and are sorted by name
-func encodeType(types EIP712Types, primaryType string) (string, error) {
-	var priorities = make(map[string]uint)
-	for key := range types {
-		priorities[key] = 0
-	}
-
-	// Updates the priority for every new custom type discovered
-	update := func(typeKey string, typeVal string) {
-		priorities[typeVal]++
-
-		// Importantly, we also have to check for parent types to increment them too
-		for _, typeObj := range types[typeVal] {
-			_typeVal := typeObj["type"]
-
-			firstChar := []rune(_typeVal)[0]
-			if unicode.IsUpper(firstChar) {
-				priorities[_typeVal]++
-			}
-		}
-	}
-
-	// Checks if referenced type has already been visited to optimise algo
-	visited := func(arr []string, val string) bool {
-		for _, elem := range arr {
-			if elem == val {
-				return true
-			}
-		}
-		return false
-	}
-
-	for typeKey, typeArr := range types {
-		var typeValArr []string
-
-		for _, typeObj := range typeArr {
-			typeVal := typeObj["type"]
-			if typeKey == typeVal {
-				return "", fmt.Errorf("type %s cannot reference itself", typeVal)
-			}
-
-			firstChar := []rune(typeVal)[0]
-			if unicode.IsUpper(firstChar) {
-				if types[typeVal] != nil {
-					if !visited(typeValArr, typeVal) {
-						typeValArr = append(typeValArr, typeVal)
-						update(typeKey, typeVal)
-					}
-				} else {
-					return "", fmt.Errorf("referenced type %s is undefined", typeVal)
-				}
-			} else {
-				if !types.IsStandardType(typeVal) {
-					if types[typeVal] != nil {
-						return "", fmt.Errorf("Custom type %s must be capitalized", typeVal)
-					} else {
-						return "", fmt.Errorf("Unknown type %s", typeVal)
-					}
-				}
-			}
-		}
-
-		typeValArr = []string{}
-	}
-
-	sortedPriorities := types.SortByPriorityAndName(priorities)
-	var buffer bytes.Buffer
-	for _, priority := range sortedPriorities {
-		typeKey := priority.Type
-		typeArr := types[typeKey]
-
-		buffer.WriteString(typeKey)
-		buffer.WriteString("(")
-
-		for _, typeObj := range typeArr {
-			buffer.WriteString(typeObj["type"])
-			buffer.WriteString(" ")
-			buffer.WriteString(typeObj["name"])
-			buffer.WriteString(",")
-		}
-
-		buffer.Truncate(buffer.Len() - 1)
-		buffer.WriteString(")")
-	}
-
-	return buffer.String(), nil
-}
-
-func encodeData(values EIP712Message) (string, error) {
-	return "", nil
-}
-
-// Checks if the given type is a standard type accepted by EIP-712
-func (types *EIP712Types) IsStandardType(typeStr string) bool {
-	standardTypes := []string{
-		"array",
-		"address",
-		"boolean",
-		"bytes",
-		"string",
-		"struct",
-		"uint",
-	}
-	for _, val := range standardTypes {
-		if strings.HasPrefix(typeStr, val) {
-			return true
-		}
-	}
-	return false
-}
-
-// Helper function to sort types by priority and name. Priority is calculated b
-// based upon the number of references.
-func (types *EIP712Types) SortByPriorityAndName(input map[string]uint) []EIP712TypePriority {
-	var priorities []EIP712TypePriority
-	for key, val := range input {
-		priorities = append(priorities, EIP712TypePriority{key, val})
-	}
-	// Alphabetically
-	sort.Slice(priorities, func(i, j int) bool {
-		return priorities[i].Type < priorities[j].Type
-	})
-	// Priority
-	sort.Slice(priorities, func(i, j int) bool {
-		return priorities[i].Value > priorities[j].Value
-	})
-
-	for _, priority := range priorities {
-		fmt.Printf("%s, Value %d\n", priority.Type, priority.Value)
-	}
-	fmt.Printf("\n")
-
-	return priorities
-}
-
-// Check if the given domain is valid, i.e. contains at least the minimum viable keys and values
-func (domain *EIP712Domain) IsValid() error {
-	if domain.ChainId == big.NewInt(0) {
-		return fmt.Errorf("chainId must be specified according to EIP-155")
-	}
-
-	if domain.Name == "" && domain.Version == "" && len(domain.VerifyingContract) == 0 && len(domain.Salt) == 0 {
-		return fmt.Errorf("domain undefined")
-	}
-
-	return nil
-}
-
-// Helper function to return the values of a domain in the form of a golang map
-func (domain *EIP712Domain) Values() map[string]interface{} {
-	return map[string]interface{}{
-		"name":              domain.Name,
-		"version":           domain.Version,
-		"chainId":           domain.Name,
-		"verifyingContract": domain.VerifyingContract,
-		"salt":              domain.Salt,
-	}
-}