status-go/services/shhext/chat/whisper.go

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package chat
import (
"github.com/ethereum/go-ethereum/crypto"
whisper "github.com/status-im/whisper/whisperv6"
)
var discoveryTopic = "contact-discovery"
var discoveryTopicBytes = toTopic(discoveryTopic)
func toTopic(s string) whisper.TopicType {
return whisper.BytesToTopic(crypto.Keccak256([]byte(s)))
}
func defaultWhisperMessage() whisper.NewMessage {
msg := whisper.NewMessage{}
msg.TTL = 10
msg.PowTarget = 0.002
msg.PowTime = 1
return msg
}
func PublicMessageToWhisper(rpcMsg SendPublicMessageRPC, payload []byte) whisper.NewMessage {
msg := defaultWhisperMessage()
msg.Topic = toTopic(rpcMsg.Chat)
msg.Payload = payload
msg.Sig = rpcMsg.Sig
return msg
}
func DirectMessageToWhisper(rpcMsg SendDirectMessageRPC, payload []byte) whisper.NewMessage {
msg := defaultWhisperMessage()
msg.Topic = discoveryTopicBytes
msg.Payload = payload
msg.Sig = rpcMsg.Sig
msg.PublicKey = rpcMsg.PubKey
return msg
}