1 files changed, 121 insertions, 0 deletions
diff --git a/ui/qt/qwhisper/whisper.go b/ui/qt/qwhisper/whisper.go
new file mode 100644
index 000000000..2bc455b0b
--- /dev/null
+++ b/ui/qt/qwhisper/whisper.go
@@ -0,0 +1,121 @@
+// QWhisper package. This package is temporarily on hold until QML DApp dev will reemerge.
+package qwhisper
+
+import (
+	"time"
+
+	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/ethutil"
+	"github.com/ethereum/go-ethereum/logger"
+	"github.com/ethereum/go-ethereum/whisper"
+	"github.com/obscuren/qml"
+)
+
+var qlogger = logger.NewLogger("QSHH")
+
+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)...)
+	}
+
+	pk := crypto.ToECDSAPub(fromHex(from))
+	if key := self.Whisper.GetIdentity(pk); key != nil {
+		msg := whisper.NewMessage(data)
+		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 {
+			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 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 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 *ethutil.List) {
+	msgs := self.Whisper.Messages(id)
+	messages = ethutil.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(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
+}