Filter accepts multiple topics per entry. Fixes #403

core/filter.go

@@ -17,7 +17,7 @@ type FilterOptions struct {
 	Latest   int64
 
 	Address [][]byte
-	Topics  [][]byte
+	Topics  [][][]byte
 
 	Skip int
 	Max  int
@@ -31,7 +31,7 @@ type Filter struct {
 	skip     int
 	address  [][]byte
 	max      int
-	topics   [][]byte
+	topics   [][][]byte
 
 	BlockCallback   func(*types.Block)
 	PendingCallback func(*types.Block)
@@ -44,6 +44,8 @@ func NewFilter(eth Backend) *Filter {
 	return &Filter{eth: eth}
 }
 
+// SetOptions copies the filter options to the filter it self. The reason for this "silly" copy
+// is simply because named arguments in this case is extremely nice and readable.
 func (self *Filter) SetOptions(options FilterOptions) {
 	self.earliest = options.Earliest
 	self.latest = options.Latest
@@ -69,7 +71,7 @@ func (self *Filter) SetAddress(addr [][]byte) {
 	self.address = addr
 }
 
-func (self *Filter) SetTopics(topics [][]byte) {
+func (self *Filter) SetTopics(topics [][][]byte) {
 	self.topics = topics
 }
 
@@ -149,10 +151,18 @@ Logs:
 			continue
 		}
 
-		max := int(math.Min(float64(len(self.topics)), float64(len(log.Topics()))))
-		for i := 0; i < max; i++ {
-			if !bytes.Equal(log.Topics()[i], self.topics[i]) {
-				continue Logs
+		logTopics := make([][]byte, len(self.topics))
+		copy(logTopics, log.Topics())
+
+		for i, topics := range self.topics {
+			for _, topic := range topics {
+				var match bool
+				if bytes.Equal(log.Topics()[i], topic) {
+					match = true
+				}
+				if !match {
+					continue Logs
+				}
 			}
 		}
 
@@ -177,8 +187,15 @@ func (self *Filter) bloomFilter(block *types.Block) bool {
 		}
 	}
 
-	for _, topic := range self.topics {
-		if !types.BloomLookup(block.Bloom(), topic) {
+	for _, sub := range self.topics {
+		var included bool
+		for _, topic := range sub {
+			if types.BloomLookup(block.Bloom(), topic) {
+				included = true
+				break
+			}
+		}
+		if !included {
 			return false
 		}
 	}

javascript/types.go

@@ -6,7 +6,6 @@ import (
 	"github.com/ethereum/go-ethereum/eth"
 	"github.com/ethereum/go-ethereum/ethutil"
 	"github.com/ethereum/go-ethereum/state"
-	"github.com/ethereum/go-ethereum/ui"
 	"github.com/ethereum/go-ethereum/xeth"
 	"github.com/obscuren/otto"
 )
@@ -96,17 +95,3 @@ func (self *JSEthereum) toVal(v interface{}) otto.Value {
 
 	return result
 }
-
-func (self *JSEthereum) Messages(object map[string]interface{}) otto.Value {
-	filter := ui.NewFilterFromMap(object, self.ethereum)
-
-	logs := filter.Find()
-	var jslogs []JSLog
-	for _, m := range logs {
-		jslogs = append(jslogs, NewJSLog(m))
-	}
-
-	v, _ := self.vm.ToValue(jslogs)
-
-	return v
-}

rpc/args.go

@@ -197,7 +197,7 @@ type FilterOptions struct {
 	Earliest int64
 	Latest   int64
 	Address  interface{}
-	Topic    []string
+	Topic    []interface{}
 	Skip     int
 	Max      int
 }
@@ -220,10 +220,20 @@ func toFilterOptions(options *FilterOptions) core.FilterOptions {
 
 	opts.Earliest = options.Earliest
 	opts.Latest = options.Latest
-	opts.Topics = make([][]byte, len(options.Topic))
-	for i, topic := range options.Topic {
-		opts.Topics[i] = fromHex(topic)
+
+	topics := make([][][]byte, len(options.Topic))
+	for i, topicDat := range options.Topic {
+		if slice, ok := topicDat.([]interface{}); ok {
+			topics[i] = make([][]byte, len(slice))
+			for j, topic := range slice {
+				topics[i][j] = fromHex(topic.(string))
+			}
+		} else if str, ok := topicDat.(string); ok {
+			topics[i] = make([][]byte, 1)
+			topics[i][0] = fromHex(str)
+		}
 	}
+	opts.Topics = topics
 
 	return opts
 }

ui/filter.go

 package ui
-
-import (
-	"github.com/ethereum/go-ethereum/core"
-	"github.com/ethereum/go-ethereum/ethutil"
-)
-
-func fromHex(s string) []byte {
-	if len(s) > 1 {
-		if s[0:2] == "0x" {
-			s = s[2:]
-		}
-		return ethutil.Hex2Bytes(s)
-	}
-	return nil
-}
-
-func NewFilterFromMap(object map[string]interface{}, eth core.Backend) *core.Filter {
-	filter := core.NewFilter(eth)
-
-	if object["earliest"] != nil {
-		val := ethutil.NewValue(object["earliest"])
-		filter.SetEarliestBlock(val.Int())
-	}
-
-	if object["latest"] != nil {
-		val := ethutil.NewValue(object["latest"])
-		filter.SetLatestBlock(val.Int())
-	}
-
-	if object["address"] != nil {
-		//val := ethutil.NewValue(object["address"])
-		//filter.SetAddress(fromHex(val.Str()))
-	}
-
-	if object["max"] != nil {
-		val := ethutil.NewValue(object["max"])
-		filter.SetMax(int(val.Uint()))
-	}
-
-	if object["skip"] != nil {
-		val := ethutil.NewValue(object["skip"])
-		filter.SetSkip(int(val.Uint()))
-	}
-
-	if object["topics"] != nil {
-		filter.SetTopics(MakeTopics(object["topics"]))
-	}
-
-	return filter
-}
-
-// Conversion methodn
-func mapToAccountChange(m map[string]interface{}) (d core.AccountChange) {
-	if str, ok := m["id"].(string); ok {
-		d.Address = fromHex(str)
-	}
-
-	if str, ok := m["at"].(string); ok {
-		d.StateAddress = fromHex(str)
-	}
-
-	return
-}
-
-// data can come in in the following formats:
-// ["aabbccdd", {id: "ccddee", at: "11223344"}], "aabbcc", {id: "ccddee", at: "1122"}
-func MakeTopics(v interface{}) (d [][]byte) {
-	if str, ok := v.(string); ok {
-		d = append(d, fromHex(str))
-	} else if slice, ok := v.([]string); ok {
-		for _, item := range slice {
-			d = append(d, fromHex(item))
-		}
-	}
-	return
-}