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signer: fix golint errors (#16653)

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* signer/*: golint fixes

Specifically naming and comment formatting for documentation

* signer/*: fixed naming error crashing build

* signer/*: corrected error

* signer/core: fix tiny error whitespace

* signer/rules: fix test refactor
release/1.8
Eli 7 years ago committed by Péter Szilágyi
parent 5b3af4c3d1
commit 16f3c31773
8 changed files with 78 additions and 79 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 13
      signer/core/abihelper.go
  2. 2
      signer/core/api.go
  3. 1
      signer/core/cliui.go
  4. 4
      signer/core/types.go
  5. 2
      signer/core/validation.go
  6. 36
      signer/rules/rules.go
  7. 94
      signer/rules/rules_test.go
  8. 5
      signer/storage/aes_gcm_storage.go

13
signer/core/abihelper.go
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@ -94,13 +94,12 @@ func parseCallData(calldata []byte, abidata string) (*decodedCallData, error) {
for n, argument := range method.Inputs {
if err != nil {
return nil, fmt.Errorf("Failed to decode argument %d (signature %v): %v", n, method.Sig(), err)
} else {
decodedArg := decodedArgument{
soltype: argument,
value: v[n],
}
decoded.inputs = append(decoded.inputs, decodedArg)
}
decodedArg := decodedArgument{
soltype: argument,
value: v[n],
}
decoded.inputs = append(decoded.inputs, decodedArg)
}
// We're finished decoding the data. At this point, we encode the decoded data to see if it matches with the
@ -240,7 +239,7 @@ func (db *AbiDb) saveCustomAbi(selector, signature string) error {
return err
}
// Adds a signature to the database, if custom database saving is enabled.
// AddSignature to the database, if custom database saving is enabled.
// OBS: This method does _not_ validate the correctness of the data,
// it is assumed that the caller has already done so
func (db *AbiDb) AddSignature(selector string, data []byte) error {

2
signer/core/api.go
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@ -474,7 +474,7 @@ func (api *SignerAPI) Export(ctx context.Context, addr common.Address) (json.Raw
return ioutil.ReadFile(wallet.URL().Path)
}
// Imports tries to import the given keyJSON in the local keystore. The keyJSON data is expected to be
// Import tries to import the given keyJSON in the local keystore. The keyJSON data is expected to be
// in web3 keystore format. It will decrypt the keyJSON with the given passphrase and on successful
// decryption it will encrypt the key with the given newPassphrase and store it in the keystore.
func (api *SignerAPI) Import(ctx context.Context, keyJSON json.RawMessage) (Account, error) {

1
signer/core/cliui.go
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@ -13,6 +13,7 @@
//
// 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
import (

4
signer/core/types.go
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@ -73,8 +73,8 @@ type SendTxArgs struct {
Input *hexutil.Bytes `json:"input"`
}
func (t SendTxArgs) String() string {
s, err := json.Marshal(t)
func (args SendTxArgs) String() string {
s, err := json.Marshal(args)
if err == nil {
return string(s)
}

2
signer/core/validation.go
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@ -128,7 +128,7 @@ func (v *Validator) validate(msgs *ValidationMessages, txargs *SendTxArgs, metho
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!`)
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!")

36
signer/rules/rules.go
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@ -46,17 +46,17 @@ func consoleOutput(call otto.FunctionCall) otto.Value {
return otto.Value{}
}
// rulesetUi provides an implementation of SignerUI that evaluates a javascript
// rulesetUI provides an implementation of SignerUI that evaluates a javascript
// file for each defined UI-method
type rulesetUi struct {
type rulesetUI struct {
next core.SignerUI // The next handler, for manual processing
storage storage.Storage
credentials storage.Storage
jsRules string // The rules to use
}
func NewRuleEvaluator(next core.SignerUI, jsbackend, credentialsBackend storage.Storage) (*rulesetUi, error) {
c := &rulesetUi{
func NewRuleEvaluator(next core.SignerUI, jsbackend, credentialsBackend storage.Storage) (*rulesetUI, error) {
c := &rulesetUI{
next: next,
storage: jsbackend,
credentials: credentialsBackend,
@ -66,11 +66,11 @@ func NewRuleEvaluator(next core.SignerUI, jsbackend, credentialsBackend storage.
return c, nil
}
func (r *rulesetUi) Init(javascriptRules string) error {
func (r *rulesetUI) Init(javascriptRules string) error {
r.jsRules = javascriptRules
return nil
}
func (r *rulesetUi) execute(jsfunc string, jsarg interface{}) (otto.Value, error) {
func (r *rulesetUI) execute(jsfunc string, jsarg interface{}) (otto.Value, error) {
// Instantiate a fresh vm engine every time
vm := otto.New()
@ -115,7 +115,7 @@ func (r *rulesetUi) execute(jsfunc string, jsarg interface{}) (otto.Value, error
return vm.Run(call)
}
func (r *rulesetUi) checkApproval(jsfunc string, jsarg []byte, err error) (bool, error) {
func (r *rulesetUI) checkApproval(jsfunc string, jsarg []byte, err error) (bool, error) {
if err != nil {
return false, err
}
@ -139,7 +139,7 @@ func (r *rulesetUi) checkApproval(jsfunc string, jsarg []byte, err error) (bool,
return false, fmt.Errorf("Unknown response")
}
func (r *rulesetUi) ApproveTx(request *core.SignTxRequest) (core.SignTxResponse, error) {
func (r *rulesetUI) ApproveTx(request *core.SignTxRequest) (core.SignTxResponse, error) {
jsonreq, err := json.Marshal(request)
approved, err := r.checkApproval("ApproveTx", jsonreq, err)
if err != nil {
@ -158,11 +158,11 @@ func (r *rulesetUi) ApproveTx(request *core.SignTxRequest) (core.SignTxResponse,
return core.SignTxResponse{Approved: false}, err
}
func (r *rulesetUi) lookupPassword(address common.Address) string {
func (r *rulesetUI) lookupPassword(address common.Address) string {
return r.credentials.Get(strings.ToLower(address.String()))
}
func (r *rulesetUi) ApproveSignData(request *core.SignDataRequest) (core.SignDataResponse, error) {
func (r *rulesetUI) ApproveSignData(request *core.SignDataRequest) (core.SignDataResponse, error) {
jsonreq, err := json.Marshal(request)
approved, err := r.checkApproval("ApproveSignData", jsonreq, err)
if err != nil {
@ -175,7 +175,7 @@ func (r *rulesetUi) ApproveSignData(request *core.SignDataRequest) (core.SignDat
return core.SignDataResponse{Approved: false, Password: ""}, err
}
func (r *rulesetUi) ApproveExport(request *core.ExportRequest) (core.ExportResponse, error) {
func (r *rulesetUI) ApproveExport(request *core.ExportRequest) (core.ExportResponse, error) {
jsonreq, err := json.Marshal(request)
approved, err := r.checkApproval("ApproveExport", jsonreq, err)
if err != nil {
@ -188,13 +188,13 @@ func (r *rulesetUi) ApproveExport(request *core.ExportRequest) (core.ExportRespo
return core.ExportResponse{Approved: false}, err
}
func (r *rulesetUi) ApproveImport(request *core.ImportRequest) (core.ImportResponse, error) {
func (r *rulesetUI) ApproveImport(request *core.ImportRequest) (core.ImportResponse, error) {
// This cannot be handled by rules, requires setting a password
// dispatch to next
return r.next.ApproveImport(request)
}
func (r *rulesetUi) ApproveListing(request *core.ListRequest) (core.ListResponse, error) {
func (r *rulesetUI) ApproveListing(request *core.ListRequest) (core.ListResponse, error) {
jsonreq, err := json.Marshal(request)
approved, err := r.checkApproval("ApproveListing", jsonreq, err)
if err != nil {
@ -207,22 +207,22 @@ func (r *rulesetUi) ApproveListing(request *core.ListRequest) (core.ListResponse
return core.ListResponse{}, err
}
func (r *rulesetUi) ApproveNewAccount(request *core.NewAccountRequest) (core.NewAccountResponse, error) {
func (r *rulesetUI) ApproveNewAccount(request *core.NewAccountRequest) (core.NewAccountResponse, error) {
// This cannot be handled by rules, requires setting a password
// dispatch to next
return r.next.ApproveNewAccount(request)
}
func (r *rulesetUi) ShowError(message string) {
func (r *rulesetUI) ShowError(message string) {
log.Error(message)
r.next.ShowError(message)
}
func (r *rulesetUi) ShowInfo(message string) {
func (r *rulesetUI) ShowInfo(message string) {
log.Info(message)
r.next.ShowInfo(message)
}
func (r *rulesetUi) OnSignerStartup(info core.StartupInfo) {
func (r *rulesetUI) OnSignerStartup(info core.StartupInfo) {
jsonInfo, err := json.Marshal(info)
if err != nil {
log.Warn("failed marshalling data", "data", info)
@ -235,7 +235,7 @@ func (r *rulesetUi) OnSignerStartup(info core.StartupInfo) {
}
}
func (r *rulesetUi) OnApprovedTx(tx ethapi.SignTransactionResult) {
func (r *rulesetUI) OnApprovedTx(tx ethapi.SignTransactionResult) {
jsonTx, err := json.Marshal(tx)
if err != nil {
log.Warn("failed marshalling transaction", "tx", tx)

94
signer/rules/rules_test.go
Unescape View File

@ -33,18 +33,18 @@ import (
const JS = `
/**
This is an example implementation of a Javascript rule file.
This is an example implementation of a Javascript rule file.
When the signer receives a request over the external API, the corresponding method is evaluated.
Three things can happen:
When the signer receives a request over the external API, the corresponding method is evaluated.
Three things can happen:
1. The method returns "Approve". This means the operation is permitted.
2. The method returns "Reject". This means the operation is rejected.
1. The method returns "Approve". This means the operation is permitted.
2. The method returns "Reject". This means the operation is rejected.
3. Anything else; other return values [*], method not implemented or exception occurred during processing. This means
that the operation will continue to manual processing, via the regular UI method chosen by the user.
that the operation will continue to manual processing, via the regular UI method chosen by the user.
[*] Note: Future version of the ruleset may use more complex json-based returnvalues, making it possible to not
only respond Approve/Reject/Manual, but also modify responses. For example, choose to list only one, but not all
[*] Note: Future version of the ruleset may use more complex json-based returnvalues, making it possible to not
only respond Approve/Reject/Manual, but also modify responses. For example, choose to list only one, but not all
accounts in a list-request. The points above will continue to hold for non-json based responses ("Approve"/"Reject").
**/
@ -72,49 +72,49 @@ func mixAddr(a string) (*common.MixedcaseAddress, error) {
return common.NewMixedcaseAddressFromString(a)
}
type alwaysDenyUi struct{}
type alwaysDenyUI struct{}
func (alwaysDenyUi) OnSignerStartup(info core.StartupInfo) {
func (alwaysDenyUI) OnSignerStartup(info core.StartupInfo) {
}
func (alwaysDenyUi) ApproveTx(request *core.SignTxRequest) (core.SignTxResponse, error) {
func (alwaysDenyUI) ApproveTx(request *core.SignTxRequest) (core.SignTxResponse, error) {
return core.SignTxResponse{Transaction: request.Transaction, Approved: false, Password: ""}, nil
}
func (alwaysDenyUi) ApproveSignData(request *core.SignDataRequest) (core.SignDataResponse, error) {
func (alwaysDenyUI) ApproveSignData(request *core.SignDataRequest) (core.SignDataResponse, error) {
return core.SignDataResponse{Approved: false, Password: ""}, nil
}
func (alwaysDenyUi) ApproveExport(request *core.ExportRequest) (core.ExportResponse, error) {
func (alwaysDenyUI) ApproveExport(request *core.ExportRequest) (core.ExportResponse, error) {
return core.ExportResponse{Approved: false}, nil
}
func (alwaysDenyUi) ApproveImport(request *core.ImportRequest) (core.ImportResponse, error) {
func (alwaysDenyUI) ApproveImport(request *core.ImportRequest) (core.ImportResponse, error) {
return core.ImportResponse{Approved: false, OldPassword: "", NewPassword: ""}, nil
}
func (alwaysDenyUi) ApproveListing(request *core.ListRequest) (core.ListResponse, error) {
func (alwaysDenyUI) ApproveListing(request *core.ListRequest) (core.ListResponse, error) {
return core.ListResponse{Accounts: nil}, nil
}
func (alwaysDenyUi) ApproveNewAccount(request *core.NewAccountRequest) (core.NewAccountResponse, error) {
func (alwaysDenyUI) ApproveNewAccount(request *core.NewAccountRequest) (core.NewAccountResponse, error) {
return core.NewAccountResponse{Approved: false, Password: ""}, nil
}
func (alwaysDenyUi) ShowError(message string) {
func (alwaysDenyUI) ShowError(message string) {
panic("implement me")
}
func (alwaysDenyUi) ShowInfo(message string) {
func (alwaysDenyUI) ShowInfo(message string) {
panic("implement me")
}
func (alwaysDenyUi) OnApprovedTx(tx ethapi.SignTransactionResult) {
func (alwaysDenyUI) OnApprovedTx(tx ethapi.SignTransactionResult) {
panic("implement me")
}
func initRuleEngine(js string) (*rulesetUi, error) {
r, err := NewRuleEvaluator(&alwaysDenyUi{}, storage.NewEphemeralStorage(), storage.NewEphemeralStorage())
func initRuleEngine(js string) (*rulesetUI, error) {
r, err := NewRuleEvaluator(&alwaysDenyUI{}, storage.NewEphemeralStorage(), storage.NewEphemeralStorage())
if err != nil {
return nil, fmt.Errorf("failed to create js engine: %v", err)
}
@ -196,59 +196,59 @@ func TestSignTxRequest(t *testing.T) {
}
}
type dummyUi struct {
type dummyUI struct {
calls []string
}
func (d *dummyUi) ApproveTx(request *core.SignTxRequest) (core.SignTxResponse, error) {
func (d *dummyUI) ApproveTx(request *core.SignTxRequest) (core.SignTxResponse, error) {
d.calls = append(d.calls, "ApproveTx")
return core.SignTxResponse{}, core.ErrRequestDenied
}
func (d *dummyUi) ApproveSignData(request *core.SignDataRequest) (core.SignDataResponse, error) {
func (d *dummyUI) ApproveSignData(request *core.SignDataRequest) (core.SignDataResponse, error) {
d.calls = append(d.calls, "ApproveSignData")
return core.SignDataResponse{}, core.ErrRequestDenied
}
func (d *dummyUi) ApproveExport(request *core.ExportRequest) (core.ExportResponse, error) {
func (d *dummyUI) ApproveExport(request *core.ExportRequest) (core.ExportResponse, error) {
d.calls = append(d.calls, "ApproveExport")
return core.ExportResponse{}, core.ErrRequestDenied
}
func (d *dummyUi) ApproveImport(request *core.ImportRequest) (core.ImportResponse, error) {
func (d *dummyUI) ApproveImport(request *core.ImportRequest) (core.ImportResponse, error) {
d.calls = append(d.calls, "ApproveImport")
return core.ImportResponse{}, core.ErrRequestDenied
}
func (d *dummyUi) ApproveListing(request *core.ListRequest) (core.ListResponse, error) {
func (d *dummyUI) ApproveListing(request *core.ListRequest) (core.ListResponse, error) {
d.calls = append(d.calls, "ApproveListing")
return core.ListResponse{}, core.ErrRequestDenied
}
func (d *dummyUi) ApproveNewAccount(request *core.NewAccountRequest) (core.NewAccountResponse, error) {
func (d *dummyUI) ApproveNewAccount(request *core.NewAccountRequest) (core.NewAccountResponse, error) {
d.calls = append(d.calls, "ApproveNewAccount")
return core.NewAccountResponse{}, core.ErrRequestDenied
}
func (d *dummyUi) ShowError(message string) {
func (d *dummyUI) ShowError(message string) {
d.calls = append(d.calls, "ShowError")
}
func (d *dummyUi) ShowInfo(message string) {
func (d *dummyUI) ShowInfo(message string) {
d.calls = append(d.calls, "ShowInfo")
}
func (d *dummyUi) OnApprovedTx(tx ethapi.SignTransactionResult) {
func (d *dummyUI) OnApprovedTx(tx ethapi.SignTransactionResult) {
d.calls = append(d.calls, "OnApprovedTx")
}
func (d *dummyUi) OnSignerStartup(info core.StartupInfo) {
func (d *dummyUI) OnSignerStartup(info core.StartupInfo) {
}
//TestForwarding tests that the rule-engine correctly dispatches requests to the next caller
func TestForwarding(t *testing.T) {
js := ""
ui := &dummyUi{make([]string, 0)}
ui := &dummyUI{make([]string, 0)}
jsBackend := storage.NewEphemeralStorage()
credBackend := storage.NewEphemeralStorage()
r, err := NewRuleEvaluator(ui, jsBackend, credBackend)
@ -308,22 +308,22 @@ func TestStorage(t *testing.T) {
function testStorage(){
storage.Put("mykey", "myvalue")
a = storage.Get("mykey")
storage.Put("mykey", ["a", "list"]) // Should result in "a,list"
a += storage.Get("mykey")
storage.Put("mykey", {"an": "object"}) // Should result in "[object Object]"
a += storage.Get("mykey")
storage.Put("mykey", JSON.stringify({"an": "object"})) // Should result in '{"an":"object"}'
a += storage.Get("mykey")
a += storage.Get("missingkey") //Missing keys should result in empty string
storage.Put("","missing key==noop") // Can't store with 0-length key
a += storage.Get("") // Should result in ''
var b = new BigNumber(2)
var c = new BigNumber(16)//"0xf0",16)
var d = b.plus(c)
@ -361,7 +361,7 @@ const ExampleTxWindow = `
if(str.slice(0,2) == "0x"){ return new BigNumber(str.slice(2),16)}
return new BigNumber(str)
}
// Time window: 1 week
var window = 1000* 3600*24*7;
@ -370,7 +370,7 @@ const ExampleTxWindow = `
function isLimitOk(transaction){
var value = big(transaction.value)
// Start of our window function
// Start of our window function
var windowstart = new Date().getTime() - window;
var txs = [];
@ -382,17 +382,17 @@ const ExampleTxWindow = `
// First, remove all that have passed out of the time-window
var newtxs = txs.filter(function(tx){return tx.tstamp > windowstart});
console.log(txs, newtxs.length);
// Secondly, aggregate the current sum
sum = new BigNumber(0)
sum = newtxs.reduce(function(agg, tx){ return big(tx.value).plus(agg)}, sum);
console.log("ApproveTx > Sum so far", sum);
console.log("ApproveTx > Requested", value.toNumber());
// Would we exceed weekly limit ?
return sum.plus(value).lt(limit)
}
function ApproveTx(r){
console.log(r)
@ -405,14 +405,14 @@ const ExampleTxWindow = `
/**
* OnApprovedTx(str) is called when a transaction has been approved and signed. The parameter
* 'response_str' contains the return value that will be sent to the external caller.
* The return value from this method is ignore - the reason for having this callback is to allow the
* ruleset to keep track of approved transactions.
* 'response_str' contains the return value that will be sent to the external caller.
* The return value from this method is ignore - the reason for having this callback is to allow the
* ruleset to keep track of approved transactions.
*
* When implementing rate-limited rules, this callback should be used.
* When implementing rate-limited rules, this callback should be used.
* If a rule responds with neither 'Approve' nor 'Reject' - the tx goes to manual processing. If the user
* then accepts the transaction, this method will be called.
*
*
* TLDR; Use this method to keep track of signed transactions, instead of using the data in ApproveTx.
*/
function OnApprovedTx(resp){

5
signer/storage/aes_gcm_storage.go
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@ -14,6 +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 storage
import (
@ -106,10 +107,8 @@ func (s *AESEncryptedStorage) readEncryptedStorage() (map[string]storedCredentia
if os.IsNotExist(err) {
// Doesn't exist yet
return creds, nil
} else {
log.Warn("Failed to read encrypted storage", "err", err, "file", s.filename)
}
log.Warn("Failed to read encrypted storage", "err", err, "file", s.filename)
}
if err = json.Unmarshal(raw, &creds); err != nil {
log.Warn("Failed to unmarshal encrypted storage", "err", err, "file", s.filename)

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