mirror of https://github.com/poanetwork/quorum.git
100 lines
2.1 KiB
Go
100 lines
2.1 KiB
Go
package qwhisper
|
|
|
|
import (
|
|
"fmt"
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum/crypto"
|
|
"github.com/ethereum/go-ethereum/ethutil"
|
|
"github.com/ethereum/go-ethereum/whisper"
|
|
"gopkg.in/qml.v1"
|
|
)
|
|
|
|
func fromHex(s string) []byte {
|
|
if len(s) > 1 {
|
|
return ethutil.Hex2Bytes(s[2:])
|
|
}
|
|
return nil
|
|
}
|
|
func toHex(b []byte) string { return "0x" + ethutil.Bytes2Hex(b) }
|
|
|
|
type Whisper struct {
|
|
*whisper.Whisper
|
|
view qml.Object
|
|
|
|
watches map[int]*Watch
|
|
}
|
|
|
|
func New(w *whisper.Whisper) *Whisper {
|
|
return &Whisper{w, nil, make(map[int]*Watch)}
|
|
}
|
|
|
|
func (self *Whisper) SetView(view qml.Object) {
|
|
self.view = view
|
|
}
|
|
|
|
func (self *Whisper) Post(payload []string, to, from string, topics []string, priority, ttl uint32) {
|
|
var data []byte
|
|
for _, d := range payload {
|
|
data = append(data, fromHex(d)...)
|
|
}
|
|
|
|
msg := whisper.NewMessage(data)
|
|
envelope, err := msg.Seal(time.Duration(priority*100000), whisper.Opts{
|
|
Ttl: time.Duration(ttl),
|
|
To: crypto.ToECDSAPub(fromHex(to)),
|
|
From: crypto.ToECDSA(fromHex(from)),
|
|
Topics: whisper.TopicsFromString(topics...),
|
|
})
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
// handle error
|
|
return
|
|
}
|
|
|
|
if err := self.Whisper.Send(envelope); err != nil {
|
|
fmt.Println(err)
|
|
// handle error
|
|
return
|
|
}
|
|
}
|
|
|
|
func (self *Whisper) NewIdentity() string {
|
|
return toHex(self.Whisper.NewIdentity().D.Bytes())
|
|
}
|
|
|
|
func (self *Whisper) HasIdentity(key string) bool {
|
|
return self.Whisper.HasIdentity(crypto.ToECDSA(fromHex(key)))
|
|
}
|
|
|
|
func (self *Whisper) Watch(opts map[string]interface{}, view *qml.Common) int {
|
|
filter := filterFromMap(opts)
|
|
var i int
|
|
filter.Fn = func(msg *whisper.Message) {
|
|
if view != nil {
|
|
view.Call("onShhMessage", ToQMessage(msg), i)
|
|
}
|
|
}
|
|
|
|
i = self.Whisper.Watch(filter)
|
|
self.watches[i] = &Watch{}
|
|
|
|
return i
|
|
}
|
|
|
|
func filterFromMap(opts map[string]interface{}) (f whisper.Filter) {
|
|
if to, ok := opts["to"].(string); ok {
|
|
f.To = crypto.ToECDSA(fromHex(to))
|
|
}
|
|
if from, ok := opts["from"].(string); ok {
|
|
f.From = crypto.ToECDSAPub(fromHex(from))
|
|
}
|
|
if topicList, ok := opts["topics"].(*qml.List); ok {
|
|
var topics []string
|
|
topicList.Convert(&topics)
|
|
f.Topics = whisper.TopicsFromString(topics...)
|
|
}
|
|
|
|
return
|
|
}
|