mirror of https://github.com/status-im/op-geth.git
116 lines
2.4 KiB
Go
116 lines
2.4 KiB
Go
package xeth
|
|
|
|
import (
|
|
"errors"
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum/crypto"
|
|
"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.ToECDSAPub(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))
|
|
}
|
|
|
|
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
|
|
Payload string `json:"payload"`
|
|
To string `json:"to"`
|
|
From string `json:"from"`
|
|
Sent int64 `json:"sent"`
|
|
}
|
|
|
|
func NewWhisperMessage(msg *whisper.Message) WhisperMessage {
|
|
return WhisperMessage{
|
|
ref: msg,
|
|
Payload: toHex(msg.Payload),
|
|
From: toHex(crypto.FromECDSAPub(msg.Recover())),
|
|
To: toHex(crypto.FromECDSAPub(msg.To)),
|
|
Sent: msg.Sent,
|
|
}
|
|
}
|