From 34689cb3f369ad71164b81d0c05238d78cb67945 Mon Sep 17 00:00:00 2001
From: obscuren <geffobscura@gmail.com>
Date: Mon, 12 Jan 2015 20:36:45 +0100
Subject: [PATCH] Added manual triggering of filters

---
 cmd/mist/assets/ext/ethereum.js/lib/web3.js |  2 +-
 cmd/mist/assets/qml/browser.qml             |  9 ++++-
 event/filter/filter.go                      |  8 +++++
 ui/qt/qwhisper/whisper.go                   |  4 +++
 whisper/whisper.go                          | 37 +++++++++++++++++----
 5 files changed, 51 insertions(+), 9 deletions(-)

diff --git a/cmd/mist/assets/ext/ethereum.js/lib/web3.js b/cmd/mist/assets/ext/ethereum.js/lib/web3.js
index 9a85c4d1bd..2fe414259a 100644
--- a/cmd/mist/assets/ext/ethereum.js/lib/web3.js
+++ b/cmd/mist/assets/ext/ethereum.js/lib/web3.js
@@ -150,7 +150,7 @@ var shhWatchMethods = function () {
     return [
     { name: 'newFilter', call: 'shh_newFilter' },
     { name: 'uninstallFilter', call: 'shh_uninstallFilter' },
-    { name: 'getMessage', call: 'shh_getMessages' }
+    { name: 'getMessages', call: 'shh_getMessages' }
     ];
 };
 
diff --git a/cmd/mist/assets/qml/browser.qml b/cmd/mist/assets/qml/browser.qml
index fcec774a57..7e8ed75bfe 100644
--- a/cmd/mist/assets/qml/browser.qml
+++ b/cmd/mist/assets/qml/browser.qml
@@ -310,7 +310,7 @@ Rectangle {
                         postData(data._id, id);
                         break;
 
-                        case "eth_messages":
+                        case "eth_filterLogs":
                         require(1);
 
                         var messages = eth.messages(data.args[0]);
@@ -352,6 +352,13 @@ Rectangle {
 
 				shh.post(params.payload, params.to, params.from, params.topics, params.priority, params.ttl);
 
+				break;
+
+			case "shh_getMessages":
+				require(1);
+
+				shh.trigger(data.args[0]);
+
 				break;
                     }
                 } catch(e) {
diff --git a/event/filter/filter.go b/event/filter/filter.go
index 9817d5782f..ca767f413e 100644
--- a/event/filter/filter.go
+++ b/event/filter/filter.go
@@ -68,3 +68,11 @@ out:
 		}
 	}
 }
+
+func (self *Filters) Match(a, b Filter) bool {
+	return reflect.TypeOf(a) == reflect.TypeOf(b) && a.Compare(b)
+}
+
+func (self *Filters) Get(i int) Filter {
+	return self.watchers[i]
+}
diff --git a/ui/qt/qwhisper/whisper.go b/ui/qt/qwhisper/whisper.go
index 8b4628a1b6..becb2a29b3 100644
--- a/ui/qt/qwhisper/whisper.go
+++ b/ui/qt/qwhisper/whisper.go
@@ -84,6 +84,10 @@ func (self *Whisper) Watch(opts map[string]interface{}, view *qml.Common) int {
 	return i
 }
 
+func (self *Whisper) Trigger(id int) {
+	go self.Whisper.Trigger(id)
+}
+
 func filterFromMap(opts map[string]interface{}) (f whisper.Filter) {
 	if to, ok := opts["to"].(string); ok {
 		f.To = crypto.ToECDSA(fromHex(to))
diff --git a/whisper/whisper.go b/whisper/whisper.go
index 3ff4bac5ac..bdc69f199b 100644
--- a/whisper/whisper.go
+++ b/whisper/whisper.go
@@ -126,6 +126,20 @@ func (self *Whisper) Watch(opts Filter) int {
 	})
 }
 
+func (self *Whisper) Trigger(id int) {
+	filter := self.filters.Get(id)
+	if filter != nil {
+		for _, e := range self.messages {
+			if msg, key := self.open(e); msg != nil {
+				f := createFilter(msg, e.Topics, key)
+				if self.filters.Match(filter, f) {
+					self.filters.Notify(f, msg)
+				}
+			}
+		}
+	}
+}
+
 // Main handler for passing whisper messages to whisper peer objects
 func (self *Whisper) msgHandler(peer *p2p.Peer, ws p2p.MsgReadWriter) error {
 	wpeer := NewPeer(self, peer, ws)
@@ -227,19 +241,28 @@ func (self *Whisper) envelopes() (envelopes []*Envelope) {
 }
 
 func (self *Whisper) postEvent(envelope *Envelope) {
+	if message, key := self.open(envelope); message != nil {
+		self.filters.Notify(createFilter(message, envelope.Topics, key), message)
+	}
+}
+
+func (self *Whisper) open(envelope *Envelope) (*Message, *ecdsa.PrivateKey) {
 	for _, key := range self.keys {
 		if message, err := envelope.Open(key); err == nil || (err != nil && err == ecies.ErrInvalidPublicKey) {
-			self.filters.Notify(filter.Generic{
-				Str1: string(crypto.FromECDSA(key)), Str2: string(crypto.FromECDSAPub(message.Recover())),
-				Data: bytesToMap(envelope.Topics),
-			}, message)
-			break
-		} else {
-			wlogger.Infoln(err)
+			return message, key
 		}
 	}
+
+	return nil, nil
 }
 
 func (self *Whisper) Protocol() p2p.Protocol {
 	return self.protocol
 }
+
+func createFilter(message *Message, topics [][]byte, key *ecdsa.PrivateKey) filter.Filter {
+	return filter.Generic{
+		Str1: string(crypto.FromECDSA(key)), Str2: string(crypto.FromECDSAPub(message.Recover())),
+		Data: bytesToMap(topics),
+	}
+}