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smartcontract: add checks for parameter names

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It can be annoying to use parameter names as specified by standard,
so a separate `CheckABI` is supported.
This commit is contained in:
Evgeniy Stratonikov 2021-02-19 13:13:36 +03:00
parent 9d4ccf0fcc
commit d89f055697
5 changed files with 79 additions and 31 deletions
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2
pkg/compiler/compiler.go
View file

@ -227,7 +227,7 @@ func CompileAndSave(src string, o *Options) ([]byte, error) {
return b, fmt.Errorf("failed to convert debug info to manifest: %w", err)
}
if !o.NoStandardCheck {
if err := standard.Check(m, o.ContractSupportedStandards...); err != nil {
if err := standard.CheckABI(m, o.ContractSupportedStandards...); err != nil {
return b, err
}
}

38
pkg/smartcontract/manifest/standard/comply.go
View file

@ -13,6 +13,7 @@ var (
ErrEventMissing = errors.New("event missing")
ErrInvalidReturnType = errors.New("invalid return type")
ErrInvalidParameterCount = errors.New("invalid parameter count")
ErrInvalidParameterName = errors.New("invalid parameter name")
ErrInvalidParameterType = errors.New("invalid parameter type")
ErrSafeMethodMismatch = errors.New("method has wrong safe flag")
)
@ -25,12 +26,21 @@ var checks = map[string][]*Standard{
// Check checks if manifest complies with all provided standards.
// Currently only NEP-17 is supported.
func Check(m *manifest.Manifest, standards ...string) error {
return check(m, true, standards...)
}
// CheckABI is similar to Check but doesn't check parameter names.
func CheckABI(m *manifest.Manifest, standards ...string) error {
return check(m, false, standards...)
}
func check(m *manifest.Manifest, checkNames bool, standards ...string) error {
for i := range standards {
ss, ok := checks[standards[i]]
if ok {
var err error
for i := range ss {
if err = Comply(m, ss[i]); err == nil {
if err = comply(m, checkNames, ss[i]); err == nil {
break
}
}
@ -45,13 +55,22 @@ func Check(m *manifest.Manifest, standards ...string) error {
// Comply if m has all methods and event from st manifest and they have the same signature.
// Parameter names are ignored.
func Comply(m *manifest.Manifest, st *Standard) error {
return comply(m, true, st)
}
// ComplyABI is similar to comply but doesn't check parameter names.
func ComplyABI(m *manifest.Manifest, st *Standard) error {
return comply(m, false, st)
}
func comply(m *manifest.Manifest, checkNames bool, st *Standard) error {
if st.Base != nil {
if err := Comply(m, st.Base); err != nil {
if err := comply(m, checkNames, st.Base); err != nil {
return err
}
}
for _, stm := range st.ABI.Methods {
if err := checkMethod(m, &stm, false); err != nil {
if err := checkMethod(m, &stm, false, checkNames); err != nil {
return err
}
}
@ -65,6 +84,10 @@ func Comply(m *manifest.Manifest, st *Standard) error {
name, len(ste.Parameters), len(ed.Parameters))
}
for i := range ste.Parameters {
if checkNames && ste.Parameters[i].Name != ed.Parameters[i].Name {
return fmt.Errorf("%w: event '%s'[%d] (expected %s, got %s)", ErrInvalidParameterName,
name, i, ste.Parameters[i].Name, ed.Parameters[i].Name)
}
if ste.Parameters[i].Type != ed.Parameters[i].Type {
return fmt.Errorf("%w: event '%s' (expected %s, got %s)", ErrInvalidParameterType,
name, ste.Parameters[i].Type, ed.Parameters[i].Type)
@ -72,14 +95,15 @@ func Comply(m *manifest.Manifest, st *Standard) error {
}
}
for _, stm := range st.Optional {
if err := checkMethod(m, &stm, true); err != nil {
if err := checkMethod(m, &stm, true, checkNames); err != nil {
return err
}
}
return nil
}
func checkMethod(m *manifest.Manifest, expected *manifest.Method, allowMissing bool) error {
func checkMethod(m *manifest.Manifest, expected *manifest.Method,
allowMissing bool, checkNames bool) error {
actual := m.ABI.GetMethod(expected.Name, len(expected.Parameters))
if actual == nil {
if allowMissing {
@ -93,6 +117,10 @@ func checkMethod(m *manifest.Manifest, expected *manifest.Method, allowMissing b
expected.Name, expected.ReturnType, actual.ReturnType)
}
for i := range expected.Parameters {
if checkNames && expected.Parameters[i].Name != actual.Parameters[i].Name {
return fmt.Errorf("%w: '%s'[%d] (expected %s, got %s)", ErrInvalidParameterName,
expected.Name, i, expected.Parameters[i].Name, actual.Parameters[i].Name)
}
if expected.Parameters[i].Type != actual.Parameters[i].Type {
return fmt.Errorf("%w: '%s'[%d] (expected %s, got %s)", ErrInvalidParameterType,
expected.Name, i, expected.Parameters[i].Type, actual.Parameters[i].Type)

20
pkg/smartcontract/manifest/standard/comply_test.go
View file

@ -81,6 +81,25 @@ func TestComplyParameterType(t *testing.T) {
})
}
func TestComplyParameterName(t *testing.T) {
t.Run("Method", func(t *testing.T) {
m := fooMethodBarEvent()
m.ABI.GetMethod("foo", -1).Parameters[0].Name = "hehe"
s := &Standard{Manifest: *fooMethodBarEvent()}
err := Comply(m, s)
require.True(t, errors.Is(err, ErrInvalidParameterName))
require.NoError(t, ComplyABI(m, s))
})
t.Run("Event", func(t *testing.T) {
m := fooMethodBarEvent()
m.ABI.GetEvent("bar").Parameters[0].Name = "hehe"
s := &Standard{Manifest: *fooMethodBarEvent()}
err := Comply(m, s)
require.True(t, errors.Is(err, ErrInvalidParameterName))
require.NoError(t, ComplyABI(m, s))
})
}
func TestMissingEvent(t *testing.T) {
m := fooMethodBarEvent()
m.ABI.GetEvent("bar").Name = "notabar"
@ -120,6 +139,7 @@ func TestCheck(t *testing.T) {
m.ABI.Methods = append(m.ABI.Methods, nep17.ABI.Methods...)
m.ABI.Events = append(m.ABI.Events, nep17.ABI.Events...)
require.NoError(t, Check(m, manifest.NEP17StandardName))
require.NoError(t, CheckABI(m, manifest.NEP17StandardName))
}
func TestOptional(t *testing.T) {

34
pkg/smartcontract/manifest/standard/nep11.go
View file

@ -13,7 +13,7 @@ var nep11Base = &Standard{
{
Name: "balanceOf",
Parameters: []manifest.Parameter{
{Type: smartcontract.Hash160Type},
{Name: "owner", Type: smartcontract.Hash160Type},
},
ReturnType: smartcontract.IntegerType,
Safe: true,
@ -22,15 +22,15 @@ var nep11Base = &Standard{
Name: "tokensOf",
ReturnType: smartcontract.AnyType, // Iterator
Parameters: []manifest.Parameter{
{Type: smartcontract.Hash160Type},
{Name: "owner", Type: smartcontract.Hash160Type},
},
Safe: true,
},
{
Name: "transfer",
Parameters: []manifest.Parameter{
{Type: smartcontract.Hash160Type},
{Type: smartcontract.ByteArrayType},
{Name: "to", Type: smartcontract.Hash160Type},
{Name: "tokenId", Type: smartcontract.ByteArrayType},
},
ReturnType: smartcontract.BoolType,
},
@ -39,10 +39,10 @@ var nep11Base = &Standard{
{
Name: "Transfer",
Parameters: []manifest.Parameter{
{Type: smartcontract.Hash160Type},
{Type: smartcontract.Hash160Type},
{Type: smartcontract.IntegerType},
{Type: smartcontract.ByteArrayType},
{Name: "from", Type: smartcontract.Hash160Type},
{Name: "to", Type: smartcontract.Hash160Type},
{Name: "amount", Type: smartcontract.IntegerType},
{Name: "tokenId", Type: smartcontract.ByteArrayType},
},
},
},
@ -52,7 +52,7 @@ var nep11Base = &Standard{
{
Name: "properties",
Parameters: []manifest.Parameter{
{Type: smartcontract.ByteArrayType},
{Name: "tokenId", Type: smartcontract.ByteArrayType},
},
ReturnType: smartcontract.MapType,
Safe: true,
@ -73,7 +73,7 @@ var nep11NonDivisible = &Standard{
{
Name: "ownerOf",
Parameters: []manifest.Parameter{
{Type: smartcontract.ByteArrayType},
{Name: "tokenId", Type: smartcontract.ByteArrayType},
},
ReturnType: smartcontract.Hash160Type,
Safe: true,
@ -91,8 +91,8 @@ var nep11Divisible = &Standard{
{
Name: "balanceOf",
Parameters: []manifest.Parameter{
{Type: smartcontract.Hash160Type},
{Type: smartcontract.ByteArrayType},
{Name: "owner", Type: smartcontract.Hash160Type},
{Name: "tokenId", Type: smartcontract.ByteArrayType},
},
ReturnType: smartcontract.IntegerType,
Safe: true,
@ -100,7 +100,7 @@ var nep11Divisible = &Standard{
{
Name: "ownerOf",
Parameters: []manifest.Parameter{
{Type: smartcontract.ByteArrayType},
{Name: "tokenId", Type: smartcontract.ByteArrayType},
},
ReturnType: smartcontract.AnyType,
Safe: true,
@ -108,10 +108,10 @@ var nep11Divisible = &Standard{
{
Name: "transfer",
Parameters: []manifest.Parameter{
{Type: smartcontract.Hash160Type},
{Type: smartcontract.Hash160Type},
{Type: smartcontract.IntegerType},
{Type: smartcontract.ByteArrayType},
{Name: "from", Type: smartcontract.Hash160Type},
{Name: "to", Type: smartcontract.Hash160Type},
{Name: "amount", Type: smartcontract.IntegerType},
{Name: "tokenId", Type: smartcontract.ByteArrayType},
},
ReturnType: smartcontract.BoolType,
},

16
pkg/smartcontract/manifest/standard/nep17.go
View file

@ -13,7 +13,7 @@ var nep17 = &Standard{
{
Name: "balanceOf",
Parameters: []manifest.Parameter{
{Type: smartcontract.Hash160Type},
{Name: "account", Type: smartcontract.Hash160Type},
},
ReturnType: smartcontract.IntegerType,
Safe: true,
@ -21,10 +21,10 @@ var nep17 = &Standard{
{
Name: "transfer",
Parameters: []manifest.Parameter{
{Type: smartcontract.Hash160Type},
{Type: smartcontract.Hash160Type},
{Type: smartcontract.IntegerType},
{Type: smartcontract.AnyType},
{Name: "from", Type: smartcontract.Hash160Type},
{Name: "to", Type: smartcontract.Hash160Type},
{Name: "amount", Type: smartcontract.IntegerType},
{Name: "data", Type: smartcontract.AnyType},
},
ReturnType: smartcontract.BoolType,
},
@ -33,9 +33,9 @@ var nep17 = &Standard{
{
Name: "Transfer",
Parameters: []manifest.Parameter{
{Type: smartcontract.Hash160Type},
{Type: smartcontract.Hash160Type},
{Type: smartcontract.IntegerType},
{Name: "from", Type: smartcontract.Hash160Type},
{Name: "to", Type: smartcontract.Hash160Type},
{Name: "amount", Type: smartcontract.IntegerType},
},
},
},