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-rw-r--r--signer/rules/deps/bignumber.js4
-rw-r--r--signer/rules/deps/bindata.go235
-rw-r--r--signer/rules/deps/deps.go21
-rw-r--r--signer/rules/rules.go248
-rw-r--r--signer/rules/rules_test.go631
5 files changed, 1139 insertions, 0 deletions
diff --git a/signer/rules/deps/bignumber.js b/signer/rules/deps/bignumber.js
new file mode 100644
index 000000000..17c8851e2
--- /dev/null
+++ b/signer/rules/deps/bignumber.js
@@ -0,0 +1,4 @@
+/* bignumber.js v2.0.3 https://github.com/MikeMcl/bignumber.js/LICENCE */
+/* modified by zelig to fix https://github.com/robertkrimen/otto#regular-expression-incompatibility */
+!function(e){"use strict";function n(e){function a(e,n){var t,r,i,o,u,s,f=this;if(!(f instanceof a))return j&&L(26,"constructor call without new",e),new a(e,n);if(null!=n&&H(n,2,64,M,"base")){if(n=0|n,s=e+"",10==n)return f=new a(e instanceof a?e:s),U(f,P+f.e+1,k);if((o="number"==typeof e)&&0*e!=0||!new RegExp("^-?"+(t="["+O.slice(0,n)+"]+")+"(?:\\."+t+")?$",37>n?"i":"").test(s))return g(f,s,o,n);o?(f.s=0>1/e?(s=s.slice(1),-1):1,j&&s.replace(/^0\.0*|\./,"").length>15&&L(M,b,e),o=!1):f.s=45===s.charCodeAt(0)?(s=s.slice(1),-1):1,s=D(s,10,n,f.s)}else{if(e instanceof a)return f.s=e.s,f.e=e.e,f.c=(e=e.c)?e.slice():e,void(M=0);if((o="number"==typeof e)&&0*e==0){if(f.s=0>1/e?(e=-e,-1):1,e===~~e){for(r=0,i=e;i>=10;i/=10,r++);return f.e=r,f.c=[e],void(M=0)}s=e+""}else{if(!p.test(s=e+""))return 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+//# sourceMappingURL=doc/bignumber.js.map
diff --git a/signer/rules/deps/bindata.go b/signer/rules/deps/bindata.go
new file mode 100644
index 000000000..0b27f4517
--- /dev/null
+++ b/signer/rules/deps/bindata.go
@@ -0,0 +1,235 @@
+// Code generated by go-bindata.
+// sources:
+// bignumber.js
+// DO NOT EDIT!
+
+package deps
+
+import (
+ "bytes"
+ "compress/gzip"
+ "fmt"
+ "io"
+ "io/ioutil"
+ "os"
+ "path/filepath"
+ "strings"
+ "time"
+)
+
+func bindataRead(data []byte, name string) ([]byte, error) {
+ gz, err := gzip.NewReader(bytes.NewBuffer(data))
+ if err != nil {
+ return nil, fmt.Errorf("Read %q: %v", name, err)
+ }
+
+ var buf bytes.Buffer
+ _, err = io.Copy(&buf, gz)
+ clErr := gz.Close()
+
+ if err != nil {
+ return nil, fmt.Errorf("Read %q: %v", name, err)
+ }
+ if clErr != nil {
+ return nil, err
+ }
+
+ return buf.Bytes(), nil
+}
+
+type asset struct {
+ bytes []byte
+ info os.FileInfo
+}
+
+type bindataFileInfo struct {
+ name string
+ size int64
+ mode os.FileMode
+ modTime time.Time
+}
+
+func (fi bindataFileInfo) Name() string {
+ return fi.name
+}
+func (fi bindataFileInfo) Size() int64 {
+ return fi.size
+}
+func (fi bindataFileInfo) Mode() os.FileMode {
+ return fi.mode
+}
+func (fi bindataFileInfo) ModTime() time.Time {
+ return fi.modTime
+}
+func (fi bindataFileInfo) IsDir() bool {
+ return false
+}
+func (fi bindataFileInfo) Sys() interface{} {
+ return nil
+}
+
+var _bignumberJs = 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+
+func bignumberJsBytes() ([]byte, error) {
+ return bindataRead(
+ _bignumberJs,
+ "bignumber.js",
+ )
+}
+
+func bignumberJs() (*asset, error) {
+ bytes, err := bignumberJsBytes()
+ if err != nil {
+ return nil, err
+ }
+
+ info := bindataFileInfo{name: "bignumber.js", size: 0, mode: os.FileMode(0), modTime: time.Unix(0, 0)}
+ a := &asset{bytes: bytes, info: info}
+ return a, nil
+}
+
+// Asset loads and returns the asset for the given name.
+// It returns an error if the asset could not be found or
+// could not be loaded.
+func Asset(name string) ([]byte, error) {
+ cannonicalName := strings.Replace(name, "\\", "/", -1)
+ if f, ok := _bindata[cannonicalName]; ok {
+ a, err := f()
+ if err != nil {
+ return nil, fmt.Errorf("Asset %s can't read by error: %v", name, err)
+ }
+ return a.bytes, nil
+ }
+ return nil, fmt.Errorf("Asset %s not found", name)
+}
+
+// MustAsset is like Asset but panics when Asset would return an error.
+// It simplifies safe initialization of global variables.
+func MustAsset(name string) []byte {
+ a, err := Asset(name)
+ if err != nil {
+ panic("asset: Asset(" + name + "): " + err.Error())
+ }
+
+ return a
+}
+
+// AssetInfo loads and returns the asset info for the given name.
+// It returns an error if the asset could not be found or
+// could not be loaded.
+func AssetInfo(name string) (os.FileInfo, error) {
+ cannonicalName := strings.Replace(name, "\\", "/", -1)
+ if f, ok := _bindata[cannonicalName]; ok {
+ a, err := f()
+ if err != nil {
+ return nil, fmt.Errorf("AssetInfo %s can't read by error: %v", name, err)
+ }
+ return a.info, nil
+ }
+ return nil, fmt.Errorf("AssetInfo %s not found", name)
+}
+
+// AssetNames returns the names of the assets.
+func AssetNames() []string {
+ names := make([]string, 0, len(_bindata))
+ for name := range _bindata {
+ names = append(names, name)
+ }
+ return names
+}
+
+// _bindata is a table, holding each asset generator, mapped to its name.
+var _bindata = map[string]func() (*asset, error){
+ "bignumber.js": bignumberJs,
+}
+
+// AssetDir returns the file names below a certain
+// directory embedded in the file by go-bindata.
+// For example if you run go-bindata on data/... and data contains the
+// following hierarchy:
+// data/
+// foo.txt
+// img/
+// a.png
+// b.png
+// then AssetDir("data") would return []string{"foo.txt", "img"}
+// AssetDir("data/img") would return []string{"a.png", "b.png"}
+// AssetDir("foo.txt") and AssetDir("notexist") would return an error
+// AssetDir("") will return []string{"data"}.
+func AssetDir(name string) ([]string, error) {
+ node := _bintree
+ if len(name) != 0 {
+ cannonicalName := strings.Replace(name, "\\", "/", -1)
+ pathList := strings.Split(cannonicalName, "/")
+ for _, p := range pathList {
+ node = node.Children[p]
+ if node == nil {
+ return nil, fmt.Errorf("Asset %s not found", name)
+ }
+ }
+ }
+ if node.Func != nil {
+ return nil, fmt.Errorf("Asset %s not found", name)
+ }
+ rv := make([]string, 0, len(node.Children))
+ for childName := range node.Children {
+ rv = append(rv, childName)
+ }
+ return rv, nil
+}
+
+type bintree struct {
+ Func func() (*asset, error)
+ Children map[string]*bintree
+}
+
+var _bintree = &bintree{nil, map[string]*bintree{
+ "bignumber.js": {bignumberJs, map[string]*bintree{}},
+}}
+
+// RestoreAsset restores an asset under the given directory
+func RestoreAsset(dir, name string) error {
+ data, err := Asset(name)
+ if err != nil {
+ return err
+ }
+ info, err := AssetInfo(name)
+ if err != nil {
+ return err
+ }
+ err = os.MkdirAll(_filePath(dir, filepath.Dir(name)), os.FileMode(0755))
+ if err != nil {
+ return err
+ }
+ err = ioutil.WriteFile(_filePath(dir, name), data, info.Mode())
+ if err != nil {
+ return err
+ }
+ err = os.Chtimes(_filePath(dir, name), info.ModTime(), info.ModTime())
+ if err != nil {
+ return err
+ }
+ return nil
+}
+
+// RestoreAssets restores an asset under the given directory recursively
+func RestoreAssets(dir, name string) error {
+ children, err := AssetDir(name)
+ // File
+ if err != nil {
+ return RestoreAsset(dir, name)
+ }
+ // Dir
+ for _, child := range children {
+ err = RestoreAssets(dir, filepath.Join(name, child))
+ if err != nil {
+ return err
+ }
+ }
+ return nil
+}
+
+func _filePath(dir, name string) string {
+ cannonicalName := strings.Replace(name, "\\", "/", -1)
+ return filepath.Join(append([]string{dir}, strings.Split(cannonicalName, "/")...)...)
+}
diff --git a/signer/rules/deps/deps.go b/signer/rules/deps/deps.go
new file mode 100644
index 000000000..5ee00b900
--- /dev/null
+++ b/signer/rules/deps/deps.go
@@ -0,0 +1,21 @@
+// 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 deps contains the console JavaScript dependencies Go embedded.
+package deps
+
+//go:generate go-bindata -nometadata -pkg deps -o bindata.go bignumber.js
+//go:generate gofmt -w -s bindata.go
diff --git a/signer/rules/rules.go b/signer/rules/rules.go
new file mode 100644
index 000000000..fa270436d
--- /dev/null
+++ b/signer/rules/rules.go
@@ -0,0 +1,248 @@
+// 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 rules
+
+import (
+ "encoding/json"
+ "fmt"
+ "os"
+ "strings"
+
+ "github.com/ethereum/go-ethereum/common"
+ "github.com/ethereum/go-ethereum/internal/ethapi"
+ "github.com/ethereum/go-ethereum/log"
+ "github.com/ethereum/go-ethereum/signer/core"
+ "github.com/ethereum/go-ethereum/signer/rules/deps"
+ "github.com/ethereum/go-ethereum/signer/storage"
+ "github.com/robertkrimen/otto"
+)
+
+var (
+ BigNumber_JS = deps.MustAsset("bignumber.js")
+)
+
+// consoleOutput is an override for the console.log and console.error methods to
+// stream the output into the configured output stream instead of stdout.
+func consoleOutput(call otto.FunctionCall) otto.Value {
+ output := []string{"JS:> "}
+ for _, argument := range call.ArgumentList {
+ output = append(output, fmt.Sprintf("%v", argument))
+ }
+ fmt.Fprintln(os.Stdout, strings.Join(output, " "))
+ return otto.Value{}
+}
+
+// rulesetUi provides an implementation of SignerUI that evaluates a javascript
+// file for each defined UI-method
+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{
+ next: next,
+ storage: jsbackend,
+ credentials: credentialsBackend,
+ jsRules: "",
+ }
+
+ return c, nil
+}
+
+func (r *rulesetUi) Init(javascriptRules string) error {
+ r.jsRules = javascriptRules
+ return nil
+}
+func (r *rulesetUi) execute(jsfunc string, jsarg interface{}) (otto.Value, error) {
+
+ // Instantiate a fresh vm engine every time
+ vm := otto.New()
+ // Set the native callbacks
+ consoleObj, _ := vm.Get("console")
+ consoleObj.Object().Set("log", consoleOutput)
+ consoleObj.Object().Set("error", consoleOutput)
+ vm.Set("storage", r.storage)
+
+ // Load bootstrap libraries
+ script, err := vm.Compile("bignumber.js", BigNumber_JS)
+ if err != nil {
+ log.Warn("Failed loading libraries", "err", err)
+ return otto.UndefinedValue(), err
+ }
+ vm.Run(script)
+
+ // Run the actual rule implementation
+ _, err = vm.Run(r.jsRules)
+ if err != nil {
+ log.Warn("Execution failed", "err", err)
+ return otto.UndefinedValue(), err
+ }
+
+ // And the actual call
+ // All calls are objects with the parameters being keys in that object.
+ // To provide additional insulation between js and go, we serialize it into JSON on the Go-side,
+ // and deserialize it on the JS side.
+
+ jsonbytes, err := json.Marshal(jsarg)
+ if err != nil {
+ log.Warn("failed marshalling data", "data", jsarg)
+ return otto.UndefinedValue(), err
+ }
+ // Now, we call foobar(JSON.parse(<jsondata>)).
+ var call string
+ if len(jsonbytes) > 0 {
+ call = fmt.Sprintf("%v(JSON.parse(%v))", jsfunc, string(jsonbytes))
+ } else {
+ call = fmt.Sprintf("%v()", jsfunc)
+ }
+ return vm.Run(call)
+}
+
+func (r *rulesetUi) checkApproval(jsfunc string, jsarg []byte, err error) (bool, error) {
+ if err != nil {
+ return false, err
+ }
+ v, err := r.execute(jsfunc, string(jsarg))
+ if err != nil {
+ log.Info("error occurred during execution", "error", err)
+ return false, err
+ }
+ result, err := v.ToString()
+ if err != nil {
+ log.Info("error occurred during response unmarshalling", "error", err)
+ return false, err
+ }
+ if result == "Approve" {
+ log.Info("Op approved")
+ return true, nil
+ } else if result == "Reject" {
+ log.Info("Op rejected")
+ return false, nil
+ }
+ return false, fmt.Errorf("Unknown response")
+}
+
+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 {
+ log.Info("Rule-based approval error, going to manual", "error", err)
+ return r.next.ApproveTx(request)
+ }
+
+ if approved {
+ return core.SignTxResponse{
+ Transaction: request.Transaction,
+ Approved: true,
+ Password: r.lookupPassword(request.Transaction.From.Address()),
+ },
+ nil
+ }
+ return core.SignTxResponse{Approved: false}, err
+}
+
+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) {
+ jsonreq, err := json.Marshal(request)
+ approved, err := r.checkApproval("ApproveSignData", jsonreq, err)
+ if err != nil {
+ log.Info("Rule-based approval error, going to manual", "error", err)
+ return r.next.ApproveSignData(request)
+ }
+ if approved {
+ return core.SignDataResponse{Approved: true, Password: r.lookupPassword(request.Address.Address())}, nil
+ }
+ return core.SignDataResponse{Approved: false, Password: ""}, err
+}
+
+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 {
+ log.Info("Rule-based approval error, going to manual", "error", err)
+ return r.next.ApproveExport(request)
+ }
+ if approved {
+ return core.ExportResponse{Approved: true}, nil
+ }
+ return core.ExportResponse{Approved: false}, err
+}
+
+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) {
+ jsonreq, err := json.Marshal(request)
+ approved, err := r.checkApproval("ApproveListing", jsonreq, err)
+ if err != nil {
+ log.Info("Rule-based approval error, going to manual", "error", err)
+ return r.next.ApproveListing(request)
+ }
+ if approved {
+ return core.ListResponse{Accounts: request.Accounts}, nil
+ }
+ return core.ListResponse{}, err
+}
+
+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) {
+ log.Error(message)
+ r.next.ShowError(message)
+}
+
+func (r *rulesetUi) ShowInfo(message string) {
+ log.Info(message)
+ r.next.ShowInfo(message)
+}
+func (r *rulesetUi) OnSignerStartup(info core.StartupInfo) {
+ jsonInfo, err := json.Marshal(info)
+ if err != nil {
+ log.Warn("failed marshalling data", "data", info)
+ return
+ }
+ r.next.OnSignerStartup(info)
+ _, err = r.execute("OnSignerStartup", string(jsonInfo))
+ if err != nil {
+ log.Info("error occurred during execution", "error", err)
+ }
+}
+
+func (r *rulesetUi) OnApprovedTx(tx ethapi.SignTransactionResult) {
+ jsonTx, err := json.Marshal(tx)
+ if err != nil {
+ log.Warn("failed marshalling transaction", "tx", tx)
+ return
+ }
+ _, err = r.execute("OnApprovedTx", string(jsonTx))
+ if err != nil {
+ log.Info("error occurred during execution", "error", err)
+ }
+}
diff --git a/signer/rules/rules_test.go b/signer/rules/rules_test.go
new file mode 100644
index 000000000..6a0403500
--- /dev/null
+++ b/signer/rules/rules_test.go
@@ -0,0 +1,631 @@
+// 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 rules
+
+import (
+ "fmt"
+ "math/big"
+ "strings"
+ "testing"
+
+ "github.com/ethereum/go-ethereum/accounts"
+ "github.com/ethereum/go-ethereum/common"
+ "github.com/ethereum/go-ethereum/common/hexutil"
+ "github.com/ethereum/go-ethereum/core/types"
+ "github.com/ethereum/go-ethereum/internal/ethapi"
+ "github.com/ethereum/go-ethereum/signer/core"
+ "github.com/ethereum/go-ethereum/signer/storage"
+)
+
+const JS = `
+/**
+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:
+
+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.
+
+[*] 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").
+
+**/
+
+function ApproveListing(request){
+ console.log("In js approve listing");
+ console.log(request.accounts[3].Address)
+ console.log(request.meta.Remote)
+ return "Approve"
+}
+
+function ApproveTx(request){
+ console.log("test");
+ console.log("from");
+ return "Reject";
+}
+
+function test(thing){
+ console.log(thing.String())
+}
+
+`
+
+func mixAddr(a string) (*common.MixedcaseAddress, error) {
+ return common.NewMixedcaseAddressFromString(a)
+}
+
+type alwaysDenyUi struct{}
+
+func (alwaysDenyUi) OnSignerStartup(info core.StartupInfo) {
+}
+
+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) {
+ return core.SignDataResponse{Approved: false, Password: ""}, nil
+}
+
+func (alwaysDenyUi) ApproveExport(request *core.ExportRequest) (core.ExportResponse, error) {
+ return core.ExportResponse{Approved: false}, nil
+}
+
+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) {
+ return core.ListResponse{Accounts: nil}, nil
+}
+
+func (alwaysDenyUi) ApproveNewAccount(request *core.NewAccountRequest) (core.NewAccountResponse, error) {
+ return core.NewAccountResponse{Approved: false, Password: ""}, nil
+}
+
+func (alwaysDenyUi) ShowError(message string) {
+ panic("implement me")
+}
+
+func (alwaysDenyUi) ShowInfo(message string) {
+ panic("implement me")
+}
+
+func (alwaysDenyUi) OnApprovedTx(tx ethapi.SignTransactionResult) {
+ panic("implement me")
+}
+
+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)
+ }
+ if err = r.Init(js); err != nil {
+ return nil, fmt.Errorf("failed to load bootstrap js: %v", err)
+ }
+ return r, nil
+}
+
+func TestListRequest(t *testing.T) {
+ accs := make([]core.Account, 5)
+
+ for i := range accs {
+ addr := fmt.Sprintf("000000000000000000000000000000000000000%x", i)
+ acc := core.Account{
+ Address: common.BytesToAddress(common.Hex2Bytes(addr)),
+ URL: accounts.URL{Scheme: "test", Path: fmt.Sprintf("acc-%d", i)},
+ }
+ accs[i] = acc
+ }
+
+ js := `function ApproveListing(){ return "Approve" }`
+
+ r, err := initRuleEngine(js)
+ if err != nil {
+ t.Errorf("Couldn't create evaluator %v", err)
+ return
+ }
+ resp, err := r.ApproveListing(&core.ListRequest{
+ Accounts: accs,
+ Meta: core.Metadata{Remote: "remoteip", Local: "localip", Scheme: "inproc"},
+ })
+ if len(resp.Accounts) != len(accs) {
+ t.Errorf("Expected check to resolve to 'Approve'")
+ }
+}
+
+func TestSignTxRequest(t *testing.T) {
+
+ js := `
+ function ApproveTx(r){
+ console.log("transaction.from", r.transaction.from);
+ console.log("transaction.to", r.transaction.to);
+ console.log("transaction.value", r.transaction.value);
+ console.log("transaction.nonce", r.transaction.nonce);
+ if(r.transaction.from.toLowerCase()=="0x0000000000000000000000000000000000001337"){ return "Approve"}
+ if(r.transaction.from.toLowerCase()=="0x000000000000000000000000000000000000dead"){ return "Reject"}
+ }`
+
+ r, err := initRuleEngine(js)
+ if err != nil {
+ t.Errorf("Couldn't create evaluator %v", err)
+ return
+ }
+ to, err := mixAddr("000000000000000000000000000000000000dead")
+ if err != nil {
+ t.Error(err)
+ return
+ }
+ from, err := mixAddr("0000000000000000000000000000000000001337")
+
+ if err != nil {
+ t.Error(err)
+ return
+ }
+ fmt.Printf("to %v", to.Address().String())
+ resp, err := r.ApproveTx(&core.SignTxRequest{
+ Transaction: core.SendTxArgs{
+ From: *from,
+ To: to},
+ Callinfo: nil,
+ Meta: core.Metadata{Remote: "remoteip", Local: "localip", Scheme: "inproc"},
+ })
+ if err != nil {
+ t.Errorf("Unexpected error %v", err)
+ }
+ if !resp.Approved {
+ t.Errorf("Expected check to resolve to 'Approve'")
+ }
+}
+
+type dummyUi struct {
+ calls []string
+}
+
+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) {
+ d.calls = append(d.calls, "ApproveSignData")
+ return core.SignDataResponse{}, core.ErrRequestDenied
+}
+
+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) {
+ d.calls = append(d.calls, "ApproveImport")
+ return core.ImportResponse{}, core.ErrRequestDenied
+}
+
+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) {
+ d.calls = append(d.calls, "ApproveNewAccount")
+ return core.NewAccountResponse{}, core.ErrRequestDenied
+}
+
+func (d *dummyUi) ShowError(message string) {
+ d.calls = append(d.calls, "ShowError")
+}
+
+func (d *dummyUi) ShowInfo(message string) {
+ d.calls = append(d.calls, "ShowInfo")
+}
+
+func (d *dummyUi) OnApprovedTx(tx ethapi.SignTransactionResult) {
+ d.calls = append(d.calls, "OnApprovedTx")
+}
+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)}
+ jsBackend := storage.NewEphemeralStorage()
+ credBackend := storage.NewEphemeralStorage()
+ r, err := NewRuleEvaluator(ui, jsBackend, credBackend)
+ if err != nil {
+ t.Fatalf("Failed to create js engine: %v", err)
+ }
+ if err = r.Init(js); err != nil {
+ t.Fatalf("Failed to load bootstrap js: %v", err)
+ }
+ r.ApproveSignData(nil)
+ r.ApproveTx(nil)
+ r.ApproveImport(nil)
+ r.ApproveNewAccount(nil)
+ r.ApproveListing(nil)
+ r.ApproveExport(nil)
+ r.ShowError("test")
+ r.ShowInfo("test")
+
+ //This one is not forwarded
+ r.OnApprovedTx(ethapi.SignTransactionResult{})
+
+ expCalls := 8
+ if len(ui.calls) != expCalls {
+
+ t.Errorf("Expected %d forwarded calls, got %d: %s", expCalls, len(ui.calls), strings.Join(ui.calls, ","))
+
+ }
+
+}
+
+func TestMissingFunc(t *testing.T) {
+ r, err := initRuleEngine(JS)
+ if err != nil {
+ t.Errorf("Couldn't create evaluator %v", err)
+ return
+ }
+
+ _, err = r.execute("MissingMethod", "test")
+
+ if err == nil {
+ t.Error("Expected error")
+ }
+
+ approved, err := r.checkApproval("MissingMethod", nil, nil)
+ if err == nil {
+ t.Errorf("Expected missing method to yield error'")
+ }
+ if approved {
+ t.Errorf("Expected missing method to cause non-approval")
+ }
+ fmt.Printf("Err %v", err)
+
+}
+func TestStorage(t *testing.T) {
+
+ js := `
+ 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)
+ console.log(d)
+ return a
+ }
+`
+ r, err := initRuleEngine(js)
+ if err != nil {
+ t.Errorf("Couldn't create evaluator %v", err)
+ return
+ }
+
+ v, err := r.execute("testStorage", nil)
+
+ if err != nil {
+ t.Errorf("Unexpected error %v", err)
+ }
+
+ retval, err := v.ToString()
+
+ if err != nil {
+ t.Errorf("Unexpected error %v", err)
+ }
+ exp := `myvaluea,list[object Object]{"an":"object"}`
+ if retval != exp {
+ t.Errorf("Unexpected data, expected '%v', got '%v'", exp, retval)
+ }
+ fmt.Printf("Err %v", err)
+
+}
+
+const ExampleTxWindow = `
+ function big(str){
+ 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;
+
+ // Limit : 1 ether
+ var limit = new BigNumber("1e18");
+
+ function isLimitOk(transaction){
+ var value = big(transaction.value)
+ // Start of our window function
+ var windowstart = new Date().getTime() - window;
+
+ var txs = [];
+ var stored = storage.Get('txs');
+
+ if(stored != ""){
+ txs = JSON.parse(stored)
+ }
+ // 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)
+ console.log(typeof(r))
+ if (isLimitOk(r.transaction)){
+ return "Approve"
+ }
+ return "Nope"
+ }
+
+ /**
+ * 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.
+ *
+ * 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){
+ var value = big(resp.tx.value)
+ var txs = []
+ // Load stored transactions
+ var stored = storage.Get('txs');
+ if(stored != ""){
+ txs = JSON.parse(stored)
+ }
+ // Add this to the storage
+ txs.push({tstamp: new Date().getTime(), value: value});
+ storage.Put("txs", JSON.stringify(txs));
+ }
+
+`
+
+func dummyTx(value hexutil.Big) *core.SignTxRequest {
+
+ to, _ := mixAddr("000000000000000000000000000000000000dead")
+ from, _ := mixAddr("000000000000000000000000000000000000dead")
+ n := hexutil.Uint64(3)
+ gas := hexutil.Uint64(21000)
+ gasPrice := hexutil.Big(*big.NewInt(2000000))
+
+ return &core.SignTxRequest{
+ Transaction: core.SendTxArgs{
+ From: *from,
+ To: to,
+ Value: value,
+ Nonce: n,
+ GasPrice: gasPrice,
+ Gas: gas,
+ },
+ Callinfo: []core.ValidationInfo{
+ {Typ: "Warning", Message: "All your base are bellong to us"},
+ },
+ Meta: core.Metadata{Remote: "remoteip", Local: "localip", Scheme: "inproc"},
+ }
+}
+func dummyTxWithV(value uint64) *core.SignTxRequest {
+
+ v := big.NewInt(0).SetUint64(value)
+ h := hexutil.Big(*v)
+ return dummyTx(h)
+}
+func dummySigned(value *big.Int) *types.Transaction {
+ to := common.HexToAddress("000000000000000000000000000000000000dead")
+ gas := uint64(21000)
+ gasPrice := big.NewInt(2000000)
+ data := make([]byte, 0)
+ return types.NewTransaction(3, to, value, gas, gasPrice, data)
+
+}
+func TestLimitWindow(t *testing.T) {
+
+ r, err := initRuleEngine(ExampleTxWindow)
+ if err != nil {
+ t.Errorf("Couldn't create evaluator %v", err)
+ return
+ }
+
+ // 0.3 ether: 429D069189E0000 wei
+ v := big.NewInt(0).SetBytes(common.Hex2Bytes("0429D069189E0000"))
+ h := hexutil.Big(*v)
+ // The first three should succeed
+ for i := 0; i < 3; i++ {
+ unsigned := dummyTx(h)
+ resp, err := r.ApproveTx(unsigned)
+ if err != nil {
+ t.Errorf("Unexpected error %v", err)
+ }
+ if !resp.Approved {
+ t.Errorf("Expected check to resolve to 'Approve'")
+ }
+ // Create a dummy signed transaction
+
+ response := ethapi.SignTransactionResult{
+ Tx: dummySigned(v),
+ Raw: common.Hex2Bytes("deadbeef"),
+ }
+ r.OnApprovedTx(response)
+ }
+ // Fourth should fail
+ resp, err := r.ApproveTx(dummyTx(h))
+ if resp.Approved {
+ t.Errorf("Expected check to resolve to 'Reject'")
+ }
+
+}
+
+// dontCallMe is used as a next-handler that does not want to be called - it invokes test failure
+type dontCallMe struct {
+ t *testing.T
+}
+
+func (d *dontCallMe) OnSignerStartup(info core.StartupInfo) {
+}
+
+func (d *dontCallMe) ApproveTx(request *core.SignTxRequest) (core.SignTxResponse, error) {
+ d.t.Fatalf("Did not expect next-handler to be called")
+ return core.SignTxResponse{}, core.ErrRequestDenied
+}
+
+func (d *dontCallMe) ApproveSignData(request *core.SignDataRequest) (core.SignDataResponse, error) {
+ d.t.Fatalf("Did not expect next-handler to be called")
+ return core.SignDataResponse{}, core.ErrRequestDenied
+}
+
+func (d *dontCallMe) ApproveExport(request *core.ExportRequest) (core.ExportResponse, error) {
+ d.t.Fatalf("Did not expect next-handler to be called")
+ return core.ExportResponse{}, core.ErrRequestDenied
+}
+
+func (d *dontCallMe) ApproveImport(request *core.ImportRequest) (core.ImportResponse, error) {
+ d.t.Fatalf("Did not expect next-handler to be called")
+ return core.ImportResponse{}, core.ErrRequestDenied
+}
+
+func (d *dontCallMe) ApproveListing(request *core.ListRequest) (core.ListResponse, error) {
+ d.t.Fatalf("Did not expect next-handler to be called")
+ return core.ListResponse{}, core.ErrRequestDenied
+}
+
+func (d *dontCallMe) ApproveNewAccount(request *core.NewAccountRequest) (core.NewAccountResponse, error) {
+ d.t.Fatalf("Did not expect next-handler to be called")
+ return core.NewAccountResponse{}, core.ErrRequestDenied
+}
+
+func (d *dontCallMe) ShowError(message string) {
+ d.t.Fatalf("Did not expect next-handler to be called")
+}
+
+func (d *dontCallMe) ShowInfo(message string) {
+ d.t.Fatalf("Did not expect next-handler to be called")
+}
+
+func (d *dontCallMe) OnApprovedTx(tx ethapi.SignTransactionResult) {
+ d.t.Fatalf("Did not expect next-handler to be called")
+}
+
+//TestContextIsCleared tests that the rule-engine does not retain variables over several requests.
+// if it does, that would be bad since developers may rely on that to store data,
+// instead of using the disk-based data storage
+func TestContextIsCleared(t *testing.T) {
+
+ js := `
+ function ApproveTx(){
+ if (typeof foobar == 'undefined') {
+ foobar = "Approve"
+ }
+ console.log(foobar)
+ if (foobar == "Approve"){
+ foobar = "Reject"
+ }else{
+ foobar = "Approve"
+ }
+ return foobar
+ }
+ `
+ ui := &dontCallMe{t}
+ r, err := NewRuleEvaluator(ui, storage.NewEphemeralStorage(), storage.NewEphemeralStorage())
+ if err != nil {
+ t.Fatalf("Failed to create js engine: %v", err)
+ }
+ if err = r.Init(js); err != nil {
+ t.Fatalf("Failed to load bootstrap js: %v", err)
+ }
+ tx := dummyTxWithV(0)
+ r1, err := r.ApproveTx(tx)
+ r2, err := r.ApproveTx(tx)
+ if r1.Approved != r2.Approved {
+ t.Errorf("Expected execution context to be cleared between executions")
+ }
+}
+
+func TestSignData(t *testing.T) {
+
+ js := `function ApproveListing(){
+ return "Approve"
+}
+function ApproveSignData(r){
+ if( r.address.toLowerCase() == "0x694267f14675d7e1b9494fd8d72fefe1755710fa")
+ {
+ if(r.message.indexOf("bazonk") >= 0){
+ return "Approve"
+ }
+ return "Reject"
+ }
+ // Otherwise goes to manual processing
+}`
+ r, err := initRuleEngine(js)
+ if err != nil {
+ t.Errorf("Couldn't create evaluator %v", err)
+ return
+ }
+ message := []byte("baz bazonk foo")
+ hash, msg := core.SignHash(message)
+ raw := hexutil.Bytes(message)
+ addr, _ := mixAddr("0x694267f14675d7e1b9494fd8d72fefe1755710fa")
+
+ fmt.Printf("address %v %v\n", addr.String(), addr.Original())
+ resp, err := r.ApproveSignData(&core.SignDataRequest{
+ Address: *addr,
+ Message: msg,
+ Hash: hash,
+ Meta: core.Metadata{Remote: "remoteip", Local: "localip", Scheme: "inproc"},
+ Rawdata: raw,
+ })
+ if err != nil {
+ t.Fatalf("Unexpected error %v", err)
+ }
+ if !resp.Approved {
+ t.Fatalf("Expected approved")
+ }
+}
generated by cgit (git 2.34.1) at 2024-11-15 04:52:03 +0800