114 lines
2.6 KiB
Go
114 lines
2.6 KiB
Go
// QWhisper package. This package is temporarily on hold until QML DApp dev will reemerge.
|
|
package qwhisper
|
|
|
|
import (
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/crypto"
|
|
"github.com/ethereum/go-ethereum/logger"
|
|
"github.com/ethereum/go-ethereum/whisper"
|
|
"github.com/obscuren/qml"
|
|
)
|
|
|
|
var qlogger = logger.NewLogger("QSHH")
|
|
|
|
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, common.FromHex(d)...)
|
|
}
|
|
|
|
pk := crypto.ToECDSAPub(common.FromHex(from))
|
|
if key := self.Whisper.GetIdentity(pk); key != nil {
|
|
msg := whisper.NewMessage(data)
|
|
envelope, err := msg.Wrap(time.Duration(priority*100000), whisper.Options{
|
|
TTL: time.Duration(ttl) * time.Second,
|
|
To: crypto.ToECDSAPub(common.FromHex(to)),
|
|
From: key,
|
|
Topics: whisper.NewTopicsFromStrings(topics...),
|
|
})
|
|
|
|
if err != nil {
|
|
qlogger.Infoln(err)
|
|
// handle error
|
|
return
|
|
}
|
|
|
|
if err := self.Whisper.Send(envelope); err != nil {
|
|
qlogger.Infoln(err)
|
|
// handle error
|
|
return
|
|
}
|
|
} else {
|
|
qlogger.Infoln("unmatched pub / priv for seal")
|
|
}
|
|
|
|
}
|
|
|
|
func (self *Whisper) NewIdentity() string {
|
|
key := self.Whisper.NewIdentity()
|
|
|
|
return common.ToHex(crypto.FromECDSAPub(&key.PublicKey))
|
|
}
|
|
|
|
func (self *Whisper) HasIdentity(key string) bool {
|
|
return self.Whisper.HasIdentity(crypto.ToECDSAPub(common.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 (self *Whisper) Messages(id int) (messages *common.List) {
|
|
msgs := self.Whisper.Messages(id)
|
|
messages = common.EmptyList()
|
|
for _, message := range msgs {
|
|
messages.Append(ToQMessage(message))
|
|
}
|
|
|
|
return
|
|
}
|
|
|
|
func filterFromMap(opts map[string]interface{}) (f whisper.Filter) {
|
|
if to, ok := opts["to"].(string); ok {
|
|
f.To = crypto.ToECDSAPub(common.FromHex(to))
|
|
}
|
|
if from, ok := opts["from"].(string); ok {
|
|
f.From = crypto.ToECDSAPub(common.FromHex(from))
|
|
}
|
|
if topicList, ok := opts["topics"].(*qml.List); ok {
|
|
var topics []string
|
|
topicList.Convert(&topics)
|
|
f.Topics = whisper.NewTopicsFromStrings(topics...)
|
|
}
|
|
|
|
return
|
|
}
|