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Added whisper interface for xeth, added examples, updated RPC

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* Added RPC methods for whisper
* Added whisper example
pull/272/merge
obscuren 10 years ago
parent c48644490f
commit c03d403437
10 changed files with 296 additions and 17 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. 2
      cmd/mist/assets/examples/coin.html
  2. 42
      cmd/mist/assets/examples/whisper.html
  3. 2
      cmd/mist/assets/qml/main.qml
  4. 5
      cmd/mist/assets/qml/views/browser.qml
  5. 9
      rpc/args.go
  6. 44
      rpc/message.go
  7. 80
      rpc/packages.go
  8. 1
      ui/qt/qwhisper/whisper.go
  9. 116
      xeth/whisper.go
  10. 12
      xeth/xeth.go

2
cmd/mist/assets/examples/coin.html
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@ -1,6 +1,6 @@
<!doctype>
<html>
<title>JevCoin</title>
<head>
<script type="text/javascript" src="../ext/bignumber.min.js"></script>
<script type="text/javascript" src="../ext/ethereum.js/dist/ethereum.js"></script>

42
cmd/mist/assets/examples/whisper.html
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@ -0,0 +1,42 @@
<!doctype>
<html>
<title>Whisper test</title>
<head>
<script type="text/javascript" src="../ext/bignumber.min.js"></script>
<script type="text/javascript" src="../ext/ethereum.js/dist/ethereum.js"></script>
</head>
<body>
<h1>Whisper test</h1>
<button onclick="test()">Send</button>
<table width="100%" id="table">
<tr>
<td>ID</td>
<td id="id"></td>
</tr>
</table>
</body>
<script type="text/javascript">
var web3 = require('web3');
web3.setProvider(new web3.providers.HttpSyncProvider('http://localhost:8080'));
var shh = web3.shh;
var id = shh.newIdentity();
document.querySelector("#id").innerHTML = id;
shh.watch({topics: ["test"]}).arrived(function(message) {
document.querySelector("#table").innerHTML += "<tr><td colspan='2'>"+JSON.stringify(message)+"</td></tr>";
});
function test() {
shh.post({topics: ["test"], payload: web3.fromAscii("test it")})
}
</script>
</html>

2
cmd/mist/assets/qml/main.qml
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@ -110,7 +110,7 @@ ApplicationWindow {
function newBrowserTab(url) {
var window = addPlugin("./views/browser.qml", {noAdd: true, close: true, section: "apps", active: true});
window.view.url = url;
window.menuItem.title = "Browser Tab";
window.menuItem.title = "Mist";
activeView(window.view, window.menuItem);
}

5
cmd/mist/assets/qml/views/browser.qml
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@ -11,7 +11,7 @@ Rectangle {
anchors.fill: parent
color: "#00000000"
property var title: "DApps"
property var title: ""
property var iconSource: "../browser.png"
property var menuItem
property var hideUrl: true
@ -154,6 +154,9 @@ Rectangle {
onLoadingChanged: {
if (loadRequest.status == WebEngineView.LoadSucceededStatus) {
webview.runJavaScript("document.title", function(pageTitle) {
menuItem.title = pageTitle;
});
webview.runJavaScript(eth.readFile("bignumber.min.js"));
webview.runJavaScript(eth.readFile("ethereum.js/dist/ethereum.js"));
}

9
rpc/args.go
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@ -251,3 +251,12 @@ func (a *DbArgs) requirements() error {
}
return nil
}
type WhisperMessageArgs struct {
Payload string
To string
From string
Topics []string
Priority uint32
Ttl uint32
}

44
rpc/message.go
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@ -21,6 +21,8 @@ import (
"encoding/json"
"errors"
"fmt"
"github.com/ethereum/go-ethereum/xeth"
)
const (
@ -270,3 +272,45 @@ func (req *RpcRequest) ToDbGetArgs() (*DbArgs, error) {
rpclogger.DebugDetailf("%T %v", args, args)
return &args, nil
}
func (req *RpcRequest) ToWhisperFilterArgs() (*xeth.Options, error) {
if len(req.Params) < 1 {
return nil, NewErrorResponse(ErrorArguments)
}
var args xeth.Options
err := json.Unmarshal(req.Params[0], &args)
if err != nil {
return nil, NewErrorResponseWithError(ErrorDecodeArgs, err)
}
rpclogger.DebugDetailf("%T %v", args, args)
return &args, nil
}
func (req *RpcRequest) ToWhisperChangedArgs() (int, error) {
if len(req.Params) < 1 {
return 0, NewErrorResponse(ErrorArguments)
}
var id int
err := json.Unmarshal(req.Params[0], &id)
if err != nil {
return 0, NewErrorResponse(ErrorDecodeArgs)
}
rpclogger.DebugDetailf("%T %v", id, id)
return id, nil
}
func (req *RpcRequest) ToWhisperPostArgs() (*WhisperMessageArgs, error) {
if len(req.Params) < 1 {
return nil, NewErrorResponse(ErrorArguments)
}
var args WhisperMessageArgs
err := json.Unmarshal(req.Params[0], &args)
if err != nil {
return nil, err
}
rpclogger.DebugDetailf("%T %v", args, args)
return &args, nil
}

80
rpc/packages.go
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@ -44,18 +44,22 @@ type EthereumApi struct {
xeth *xeth.XEth
filterManager *filter.FilterManager
mut sync.RWMutex
logs map[int]state.Logs
logMut sync.RWMutex
logs map[int]state.Logs
messagesMut sync.RWMutex
messages map[int][]xeth.WhisperMessage
db ethutil.Database
}
func NewEthereumApi(xeth *xeth.XEth) *EthereumApi {
func NewEthereumApi(eth *xeth.XEth) *EthereumApi {
db, _ := ethdb.NewLDBDatabase("dapps")
api := &EthereumApi{
xeth: xeth,
filterManager: filter.NewFilterManager(xeth.Backend().EventMux()),
xeth: eth,
filterManager: filter.NewFilterManager(eth.Backend().EventMux()),
logs: make(map[int]state.Logs),
messages: make(map[int][]xeth.WhisperMessage),
db: db,
}
go api.filterManager.Start()
@ -67,8 +71,8 @@ func (self *EthereumApi) NewFilter(args *FilterOptions, reply *interface{}) erro
var id int
filter := core.NewFilter(self.xeth.Backend())
filter.LogsCallback = func(logs state.Logs) {
self.mut.Lock()
defer self.mut.Unlock()
self.logMut.Lock()
defer self.logMut.Unlock()
self.logs[id] = append(self.logs[id], logs...)
}
@ -79,8 +83,8 @@ func (self *EthereumApi) NewFilter(args *FilterOptions, reply *interface{}) erro
}
func (self *EthereumApi) FilterChanged(id int, reply *interface{}) error {
self.mut.RLock()
defer self.mut.RUnlock()
self.logMut.RLock()
defer self.logMut.RUnlock()
*reply = toLogs(self.logs[id])
@ -257,6 +261,44 @@ func (p *EthereumApi) DbGet(args *DbArgs, reply *interface{}) error {
return nil
}
func (p *EthereumApi) NewWhisperIdentity(reply *interface{}) error {
*reply = p.xeth.Whisper().NewIdentity()
return nil
}
func (p *EthereumApi) NewWhisperFilter(args *xeth.Options, reply *interface{}) error {
var id int
args.Fn = func(msg xeth.WhisperMessage) {
p.messagesMut.Lock()
defer p.messagesMut.Unlock()
p.messages[id] = append(p.messages[id], msg)
}
id = p.xeth.Whisper().Watch(args)
*reply = id
return nil
}
func (self *EthereumApi) MessagesChanged(id int, reply *interface{}) error {
self.messagesMut.RLock()
defer self.messagesMut.RUnlock()
*reply = self.messages[id]
self.messages[id] = nil // empty the messages
return nil
}
func (p *EthereumApi) WhisperPost(args *WhisperMessageArgs, reply *interface{}) error {
err := p.xeth.Whisper().Post(args.Payload, args.To, args.From, args.Topics, args.Priority, args.Ttl)
if err != nil {
return err
}
*reply = true
return nil
}
func (p *EthereumApi) GetRequestReply(req *RpcRequest, reply *interface{}) error {
// Spec at https://github.com/ethereum/wiki/wiki/Generic-ON-RPC
rpclogger.DebugDetailf("%T %s", req.Params, req.Params)
@ -354,6 +396,26 @@ func (p *EthereumApi) GetRequestReply(req *RpcRequest, reply *interface{}) error
return err
}
return p.DbGet(args, reply)
case "shh_newIdentity":
return p.NewWhisperIdentity(reply)
case "shh_newFilter":
args, err := req.ToWhisperFilterArgs()
if err != nil {
return err
}
return p.NewWhisperFilter(args, reply)
case "shh_changed":
args, err := req.ToWhisperChangedArgs()
if err != nil {
return err
}
return p.MessagesChanged(args, reply)
case "shh_post":
args, err := req.ToWhisperPostArgs()
if err != nil {
return nil
}
return p.WhisperPost(args, reply)
default:
return NewErrorResponse(fmt.Sprintf("%v %s", ErrorNotImplemented, req.Method))
}

1
ui/qt/qwhisper/whisper.go
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@ -1,3 +1,4 @@
// QWhisper package. This package is temporarily on hold until QML DApp dev will reemerge.
package qwhisper
import (

116
xeth/whisper.go
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@ -0,0 +1,116 @@
package xeth
import (
"errors"
"fmt"
"time"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethutil"
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/whisper"
)
var qlogger = logger.NewLogger("XSHH")
type Whisper struct {
*whisper.Whisper
}
func NewWhisper(w *whisper.Whisper) *Whisper {
return &Whisper{w}
}
func (self *Whisper) Post(payload string, to, from string, topics []string, priority, ttl uint32) error {
if priority == 0 {
priority = 1000
}
if ttl == 0 {
ttl = 100
}
pk := crypto.ToECDSAPub(fromHex(from))
if key := self.Whisper.GetIdentity(pk); key != nil || len(from) == 0 {
msg := whisper.NewMessage(fromHex(payload))
envelope, err := msg.Seal(time.Duration(priority*100000), whisper.Opts{
Ttl: time.Duration(ttl) * time.Second,
To: crypto.ToECDSAPub(fromHex(to)),
From: key,
Topics: whisper.TopicsFromString(topics...),
})
if err != nil {
return err
}
if err := self.Whisper.Send(envelope); err != nil {
return err
}
} else {
return errors.New("unmatched pub / priv for seal")
}
return nil
}
func (self *Whisper) NewIdentity() string {
key := self.Whisper.NewIdentity()
return toHex(crypto.FromECDSAPub(&key.PublicKey))
}
func (self *Whisper) HasIdentity(key string) bool {
return self.Whisper.HasIdentity(crypto.ToECDSAPub(fromHex(key)))
}
func (self *Whisper) Watch(opts *Options) int {
filter := whisper.Filter{
To: crypto.ToECDSA(fromHex(opts.To)),
From: crypto.ToECDSAPub(fromHex(opts.From)),
Topics: whisper.TopicsFromString(opts.Topics...),
}
var i int
filter.Fn = func(msg *whisper.Message) {
opts.Fn(NewWhisperMessage(msg))
}
fmt.Println("new filter", filter)
i = self.Whisper.Watch(filter)
return i
}
func (self *Whisper) Messages(id int) (messages []WhisperMessage) {
msgs := self.Whisper.Messages(id)
messages = make([]WhisperMessage, len(msgs))
for i, message := range msgs {
messages[i] = NewWhisperMessage(message)
}
return
}
type Options struct {
To string
From string
Topics []string
Fn func(msg WhisperMessage)
}
type WhisperMessage struct {
ref *whisper.Message
Flags int32 `json:"flags"`
Payload string `json:"payload"`
From string `json:"from"`
}
func NewWhisperMessage(msg *whisper.Message) WhisperMessage {
return WhisperMessage{
ref: msg,
Flags: int32(msg.Flags),
Payload: "0x" + ethutil.Bytes2Hex(msg.Payload),
From: "0x" + ethutil.Bytes2Hex(crypto.FromECDSAPub(msg.Recover())),
}
}

12
xeth/xeth.go
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@ -16,6 +16,7 @@ import (
"github.com/ethereum/go-ethereum/logger"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/state"
"github.com/ethereum/go-ethereum/whisper"
)
var pipelogger = logger.NewLogger("XETH")
@ -33,6 +34,7 @@ type Backend interface {
ClientIdentity() p2p.ClientIdentity
Db() ethutil.Database
EventMux() *event.TypeMux
Whisper() *whisper.Whisper
}
type XEth struct {
@ -40,6 +42,7 @@ type XEth struct {
blockProcessor *core.BlockProcessor
chainManager *core.ChainManager
state *State
whisper *Whisper
}
func New(eth Backend) *XEth {
@ -47,17 +50,16 @@ func New(eth Backend) *XEth {
eth: eth,
blockProcessor: eth.BlockProcessor(),
chainManager: eth.ChainManager(),
whisper: NewWhisper(eth.Whisper()),
}
xeth.state = NewState(xeth)
return xeth
}
func (self *XEth) Backend() Backend {
return self.eth
}
func (self *XEth) State() *State { return self.state }
func (self *XEth) Backend() Backend { return self.eth }
func (self *XEth) State() *State { return self.state }
func (self *XEth) Whisper() *Whisper { return self.whisper }
func (self *XEth) BlockByHash(strHash string) *Block {
hash := fromHex(strHash)

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