cerc-io/plugeth
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Filter accepts multiple topics per entry. Fixes #403

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This commit is contained in:
obscuren 2015-03-01 19:08:26 +01:00
parent ac88ae86a3
commit 6e50a1e9f5
4 changed files with 40 additions and 104 deletions
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33
core/filter.go
View File

@ -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
}
@ -149,12 +151,20 @@ 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]) {
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
}
}
}
ret = append(ret, log)
}
@ -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
}
}

15
javascript/types.go
View File

@ -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
}

18
rpc/args.go
View File

@ -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
}

76
ui/filter.go
View File

@ -1,77 +1 @@
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
}