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rpc: various fixes/enhancements

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rpc: be less restrictive on the request id
rpc: improved documentation
console: upgrade web3.js to version 0.16.0
rpc: cache http connections
rpc: rename wsDomains parameter to wsOrigins
This commit is contained in:
Bas van Kervel
2016-03-14 09:38:54 +01:00
parent 7e02105672
commit aa9fff3e68
23 changed files with 3440 additions and 648 deletions
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181
cmd/utils/jeth.go
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@ -37,7 +37,8 @@ func NewJeth(re *jsre.JSRE, client rpc.Client) *Jeth {
return &Jeth{re, client}
}
func (self *Jeth) err(call otto.FunctionCall, code int, msg string, id *int64) (response otto.Value) {
// err returns an error object for the given error code and message.
func (self *Jeth) err(call otto.FunctionCall, code int, msg string, id interface{}) (response otto.Value) {
m := rpc.JSONErrResponse{
Version: "2.0",
Id: id,
@ -56,44 +57,50 @@ func (self *Jeth) err(call otto.FunctionCall, code int, msg string, id *int64) (
return res
}
// UnlockAccount asks the user for the password and than executes the jeth.UnlockAccount callback in the jsre
// UnlockAccount asks the user for the password and than executes the jeth.UnlockAccount callback in the jsre.
// It will need the public address for the account to unlock as first argument.
// The second argument is an optional string with the password. If not given the user is prompted for the password.
// The third argument is an optional integer which specifies for how long the account will be unlocked (in seconds).
func (self *Jeth) UnlockAccount(call otto.FunctionCall) (response otto.Value) {
var account, passwd string
timeout := int64(300)
var ok bool
var account, passwd otto.Value
duration := otto.NullValue()
if len(call.ArgumentList) == 0 {
fmt.Println("expected address of account to unlock")
if !call.Argument(0).IsString() {
fmt.Println("first argument must be the account to unlock")
return otto.FalseValue()
}
if len(call.ArgumentList) >= 1 {
if accountExport, err := call.Argument(0).Export(); err == nil {
if account, ok = accountExport.(string); ok {
if len(call.ArgumentList) == 1 {
fmt.Printf("Unlock account %s\n", account)
passwd, err = PromptPassword("Passphrase: ", true)
if err != nil {
return otto.FalseValue()
}
}
}
account = call.Argument(0)
// if password is not given or as null value -> ask user for password
if call.Argument(1).IsUndefined() || call.Argument(1).IsNull() {
fmt.Printf("Unlock account %s\n", account)
if password, err := PromptPassword("Passphrase: ", true); err == nil {
passwd, _ = otto.ToValue(password)
} else {
throwJSExeception(err.Error())
}
}
if len(call.ArgumentList) >= 2 {
if passwdExport, err := call.Argument(1).Export(); err == nil {
passwd, _ = passwdExport.(string)
} else {
if !call.Argument(1).IsString() {
throwJSExeception("password must be a string")
}
passwd = call.Argument(1)
}
if len(call.ArgumentList) >= 3 {
if timeoutExport, err := call.Argument(2).Export(); err == nil {
timeout, _ = timeoutExport.(int64)
// third argument is the duration how long the account must be unlocked.
// verify that its a number.
if call.Argument(2).IsDefined() && !call.Argument(2).IsNull() {
if !call.Argument(2).IsNumber() {
throwJSExeception("unlock duration must be a number")
}
duration = call.Argument(2)
}
if val, err := call.Otto.Call("jeth.unlockAccount", nil, account, passwd, timeout); err == nil {
// jeth.unlockAccount will send the request to the backend.
if val, err := call.Otto.Call("jeth.unlockAccount", nil, account, passwd, duration); err == nil {
return val
} else {
throwJSExeception(err.Error())
}
return otto.FalseValue()
@ -134,19 +141,31 @@ func (self *Jeth) NewAccount(call otto.FunctionCall) (response otto.Value) {
return otto.FalseValue()
}
// Send will serialize the first argument, send it to the node and returns the response.
func (self *Jeth) Send(call otto.FunctionCall) (response otto.Value) {
reqif, err := call.Argument(0).Export()
if err != nil {
return self.err(call, -32700, err.Error(), nil)
// verify we got a batch request (array) or a single request (object)
ro := call.Argument(0).Object()
if ro == nil || (ro.Class() != "Array" && ro.Class() != "Object") {
throwJSExeception("Internal Error: request must be an object or array")
}
jsonreq, err := json.Marshal(reqif)
// convert otto vm arguments to go values by JSON serialising and parsing.
data, err := call.Otto.Call("JSON.stringify", nil, ro)
if err != nil {
throwJSExeception(err.Error())
}
jsonreq, _ := data.ToString()
// parse arguments to JSON rpc requests, either to an array (batch) or to a single request.
var reqs []rpc.JSONRequest
batch := true
err = json.Unmarshal(jsonreq, &reqs)
if err != nil {
if err = json.Unmarshal([]byte(jsonreq), &reqs); err != nil {
// single request?
reqs = make([]rpc.JSONRequest, 1)
err = json.Unmarshal(jsonreq, &reqs[0])
if err = json.Unmarshal([]byte(jsonreq), &reqs[0]); err != nil {
throwJSExeception("invalid request")
}
batch = false
}
@ -154,47 +173,50 @@ func (self *Jeth) Send(call otto.FunctionCall) (response otto.Value) {
call.Otto.Run("var ret_response = new Array(response_len);")
for i, req := range reqs {
err := self.client.Send(&req)
if err != nil {
if err := self.client.Send(&req); err != nil {
return self.err(call, -32603, err.Error(), req.Id)
}
result := make(map[string]interface{})
err = self.client.Recv(&result)
if err != nil {
if err = self.client.Recv(&result); err != nil {
return self.err(call, -32603, err.Error(), req.Id)
}
_, isSuccessResponse := result["result"]
_, isErrorResponse := result["error"]
if !isSuccessResponse && !isErrorResponse {
return self.err(call, -32603, fmt.Sprintf("Invalid response"), new(int64))
}
id, _ := result["id"]
call.Otto.Set("ret_id", id)
jsonver, _ := result["jsonrpc"]
call.Otto.Set("ret_jsonrpc", jsonver)
var payload []byte
if isSuccessResponse {
payload, _ = json.Marshal(result["result"])
} else if isErrorResponse {
payload, _ = json.Marshal(result["error"])
}
call.Otto.Set("ret_result", string(payload))
call.Otto.Set("ret_id", id)
call.Otto.Set("ret_jsonrpc", jsonver)
call.Otto.Set("response_idx", i)
response, err = call.Otto.Run(`
ret_response[response_idx] = { jsonrpc: ret_jsonrpc, id: ret_id, result: JSON.parse(ret_result) };
`)
// call was successful
if res, ok := result["result"]; ok {
payload, _ := json.Marshal(res)
call.Otto.Set("ret_result", string(payload))
response, err = call.Otto.Run(`
ret_response[response_idx] = { jsonrpc: ret_jsonrpc, id: ret_id, result: JSON.parse(ret_result) };
`)
continue
}
// request returned an error
if res, ok := result["error"]; ok {
payload, _ := json.Marshal(res)
call.Otto.Set("ret_result", string(payload))
response, err = call.Otto.Run(`
ret_response[response_idx] = { jsonrpc: ret_jsonrpc, id: ret_id, error: JSON.parse(ret_result) };
`)
continue
}
return self.err(call, -32603, fmt.Sprintf("Invalid response"), new(int64))
}
if !batch {
call.Otto.Run("ret_response = ret_response[0];")
}
// if a callback was given execute it.
if call.Argument(1).IsObject() {
call.Otto.Set("callback", call.Argument(1))
call.Otto.Run(`
@ -207,53 +229,6 @@ func (self *Jeth) Send(call otto.FunctionCall) (response otto.Value) {
return
}
/*
// handleRequest will handle user agent requests by interacting with the user and sending
// the user response back to the geth service
func (self *Jeth) handleRequest(req *shared.Request) bool {
var err error
var args []interface{}
if err = json.Unmarshal(req.Params, &args); err != nil {
glog.V(logger.Info).Infof("Unable to parse agent request - %v\n", err)
return false
}
switch req.Method {
case useragent.AskPasswordMethod:
return self.askPassword(req.Id, req.Jsonrpc, args)
case useragent.ConfirmTransactionMethod:
return self.confirmTransaction(req.Id, req.Jsonrpc, args)
}
return false
}
// askPassword will ask the user to supply the password for a given account
func (self *Jeth) askPassword(id interface{}, jsonrpc string, args []interface{}) bool {
var err error
var passwd string
if len(args) >= 1 {
if account, ok := args[0].(string); ok {
fmt.Printf("Unlock account %s\n", account)
} else {
return false
}
}
passwd, err = PromptPassword("Passphrase: ", true)
if err = self.client.Send(shared.NewRpcResponse(id, jsonrpc, passwd, err)); err != nil {
glog.V(logger.Info).Infof("Unable to send user agent ask password response - %v\n", err)
}
return err == nil
}
func (self *Jeth) confirmTransaction(id interface{}, jsonrpc string, args []interface{}) bool {
// Accept all tx which are send from this console
return self.client.Send(shared.NewRpcResponse(id, jsonrpc, true, nil)) == nil
}
*/
// throwJSExeception panics on an otto value, the Otto VM will then throw msg as a javascript error.
func throwJSExeception(msg interface{}) otto.Value {
p, _ := otto.ToValue(msg)