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package qwhisper
import (
"time"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethutil"
"github.com/ethereum/go-ethereum/whisper"
)
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
}
func New(w *whisper.Whisper) *Whisper {
return &Whisper{w}
}
func (self *Whisper) Post(data string, pow, ttl uint32, to, from string) {
msg := whisper.NewMessage(fromHex(data))
envelope, err := msg.Seal(time.Duration(pow), whisper.Opts{
Ttl: time.Duration(ttl),
To: crypto.ToECDSAPub(fromHex(to)),
From: crypto.ToECDSA(fromHex(from)),
})
if err != nil {
// handle error
return
}
if err := self.Whisper.Send(envelope); err != nil {
// handle error
return
}
}
func (self *Whisper) NewIdentity() string {
return toHex(self.Whisper.NewIdentity().D.Bytes())
}
func (self *Whisper) HasIdentify(key string) bool {
return self.Whisper.HasIdentity(crypto.ToECDSA(fromHex(key)))
}
func (self *Whisper) Watch(opts map[string]interface{}) {
filter := filterFromMap(opts)
filter.Fn = func(msg *whisper.Message) {
// TODO POST TO QT WINDOW
}
self.Whisper.Watch(filter)
}
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))
}
return
}
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