cerc-io/plugeth
18
0
Fork 1
Code Issues 4 Pull Requests Packages Projects Releases Wiki Activity

Updates to support blockupdates plugin

Browse Source 
This makes several updates to support the blockupdates plugin.

I had to update several hooks that were using the wrong types, and
provide a way to get event.Feed objects into plugins without importing
event.Feed (which I did by having the plugin loader make them
available).
This commit is contained in:
Austin Roberts 2021-09-16 15:32:25 -05:00
parent 25af69b8e2
commit f7307d527d
4 changed files with 67 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

70
core/plugin_hooks.go
View File

@ -1,22 +1,24 @@
package core
import (
"encoding/json"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/plugins"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/rlp"
"github.com/openrelayxyz/plugeth-utils/core"
)
func PluginPreProcessBlock(pl *plugins.PluginLoader, block *types.Block) {
fnList := pl.Lookup("PreProcessBlock", func(item interface{}) bool {
_, ok := item.(func([]byte))
_, ok := item.(func(core.Hash, uint64, []byte))
return ok
})
encoded, _ := rlp.EncodeToBytes(block)
for _, fni := range fnList {
if fn, ok := fni.(func([]byte)); ok {
fn(encoded)
if fn, ok := fni.(func(core.Hash, uint64, []byte)); ok {
fn(core.Hash(block.Hash()), block.NumberU64(), encoded)
}
}
}
@ -29,14 +31,13 @@ func pluginPreProcessBlock(block *types.Block) {
}
func PluginPreProcessTransaction(pl *plugins.PluginLoader, tx *types.Transaction, block *types.Block, i int) {
fnList := pl.Lookup("PreProcessTransaction", func(item interface{}) bool {
_, ok := item.(func([]byte, []byte, int))
_, ok := item.(func([]byte, core.Hash, core.Hash, int))
return ok
})
txBytes, _ := tx.MarshalBinary()
blockBytes, _ := rlp.EncodeToBytes(block)
for _, fni := range fnList {
if fn, ok := fni.(func([]byte, []byte, int)); ok {
fn(txBytes, blockBytes, i)
if fn, ok := fni.(func([]byte, core.Hash, core.Hash, int)); ok {
fn(txBytes, core.Hash(tx.Hash()), core.Hash(block.Hash()), i)
}
}
}
@ -49,12 +50,12 @@ func pluginPreProcessTransaction(tx *types.Transaction, block *types.Block, i in
}
func PluginBlockProcessingError(pl *plugins.PluginLoader, tx *types.Transaction, block *types.Block, err error) {
fnList := pl.Lookup("BlockProcessingError", func(item interface{}) bool {
_, ok := item.(func(*types.Transaction, *types.Block, error))
_, ok := item.(func(core.Hash, core.Hash, error))
return ok
})
for _, fni := range fnList {
if fn, ok := fni.(func(*types.Transaction, *types.Block, error)); ok {
fn(tx, block, err)
if fn, ok := fni.(func(core.Hash, core.Hash, error)); ok {
fn(core.Hash(tx.Hash()), core.Hash(block.Hash()), err)
}
}
}
@ -67,12 +68,13 @@ func pluginBlockProcessingError(tx *types.Transaction, block *types.Block, err e
}
func PluginPostProcessTransaction(pl *plugins.PluginLoader, tx *types.Transaction, block *types.Block, i int, receipt *types.Receipt) {
fnList := pl.Lookup("PostProcessTransaction", func(item interface{}) bool {
_, ok := item.(func(*types.Transaction, *types.Block, int, *types.Receipt))
_, ok := item.(func(core.Hash, core.Hash, int, []byte))
return ok
})
receiptBytes, _ := json.Marshal(receipt)
for _, fni := range fnList {
if fn, ok := fni.(func(*types.Transaction, *types.Block, int, *types.Receipt)); ok {
fn(tx, block, i, receipt)
if fn, ok := fni.(func(core.Hash, core.Hash, int, []byte)); ok {
fn(core.Hash(tx.Hash()), core.Hash(block.Hash()), i, receiptBytes)
}
}
}
@ -85,12 +87,12 @@ func pluginPostProcessTransaction(tx *types.Transaction, block *types.Block, i i
}
func PluginPostProcessBlock(pl *plugins.PluginLoader, block *types.Block) {
fnList := pl.Lookup("PostProcessBlock", func(item interface{}) bool {
_, ok := item.(func(*types.Block))
_, ok := item.(func(core.Hash))
return ok
})
for _, fni := range fnList {
if fn, ok := fni.(func(*types.Block)); ok {
fn(block)
if fn, ok := fni.(func(core.Hash)); ok {
fn(core.Hash(block.Hash()))
}
}
}
@ -105,12 +107,17 @@ func pluginPostProcessBlock(block *types.Block) {
func PluginNewHead(pl *plugins.PluginLoader, block *types.Block, hash common.Hash, logs []*types.Log) {
fnList := pl.Lookup("NewHead", func(item interface{}) bool {
_, ok := item.(func(*types.Block, common.Hash, []*types.Log))
_, ok := item.(func([]byte, core.Hash, [][]byte))
return ok
})
blockBytes, _ := rlp.EncodeToBytes(block)
logBytes := make([][]byte, len(logs))
for i, l := range logs {
logBytes[i], _ = rlp.EncodeToBytes(l)
}
for _, fni := range fnList {
if fn, ok := fni.(func(*types.Block, common.Hash, []*types.Log)); ok {
fn(block, hash, logs)
if fn, ok := fni.(func([]byte, core.Hash, [][]byte)); ok {
fn(blockBytes, core.Hash(hash), logBytes)
}
}
}
@ -124,12 +131,17 @@ func pluginNewHead(block *types.Block, hash common.Hash, logs []*types.Log) {
func PluginNewSideBlock(pl *plugins.PluginLoader, block *types.Block, hash common.Hash, logs []*types.Log) {
fnList := pl.Lookup("NewSideBlock", func(item interface{}) bool {
_, ok := item.(func(*types.Block, common.Hash, []*types.Log))
_, ok := item.(func([]byte, core.Hash, [][]byte))
return ok
})
blockBytes, _ := rlp.EncodeToBytes(block)
logBytes := make([][]byte, len(logs))
for i, l := range logs {
logBytes[i], _ = rlp.EncodeToBytes(l)
}
for _, fni := range fnList {
if fn, ok := fni.(func(*types.Block, common.Hash, []*types.Log)); ok {
fn(block, hash, logs)
if fn, ok := fni.(func([]byte, core.Hash, [][]byte)); ok {
fn(blockBytes, core.Hash(hash), logBytes)
}
}
}
@ -143,12 +155,20 @@ func pluginNewSideBlock(block *types.Block, hash common.Hash, logs []*types.Log)
func PluginReorg(pl *plugins.PluginLoader, commonBlock *types.Block, oldChain, newChain types.Blocks) {
fnList := pl.Lookup("Reorg", func(item interface{}) bool {
_, ok := item.(func(common *types.Block, oldChain, newChain types.Blocks))
_, ok := item.(func(core.Hash, []core.Hash, []core.Hash))
return ok
})
oldChainHashes := make([]core.Hash, len(oldChain))
for i, block := range oldChain {
oldChainHashes[i] = core.Hash(block.Hash())
}
newChainHashes := make([]core.Hash, len(newChain))
for i, block := range newChain {
newChainHashes[i] = core.Hash(block.Hash())
}
for _, fni := range fnList {
if fn, ok := fni.(func(common *types.Block, oldChain, newChain types.Blocks)); ok {
fn(commonBlock, oldChain, newChain)
if fn, ok := fni.(func(core.Hash, []core.Hash, []core.Hash)); ok {
fn(core.Hash(commonBlock.Hash()), oldChainHashes, newChainHashes)
}
}
}

2
core/state/plugin_hooks.go
View File

@ -11,7 +11,7 @@ import (
func PluginStateUpdate(pl *plugins.PluginLoader, blockRoot, parentRoot common.Hash, destructs map[common.Hash]struct{}, accounts map[common.Hash][]byte, storage map[common.Hash]map[common.Hash][]byte) {
fnList := pl.Lookup("StateUpdate", func(item interface{}) bool {
_, ok := item.(func(common.Hash, common.Hash, map[common.Hash]struct{}, map[common.Hash][]byte, map[common.Hash]map[common.Hash][]byte))
_, ok := item.(func(core.Hash, core.Hash, map[core.Hash]struct{}, map[core.Hash][]byte, map[core.Hash]map[core.Hash][]byte))
return ok
})
coreDestructs := make(map[core.Hash]struct{})

18
plugins/plugin_loader.go
View File

@ -12,6 +12,7 @@ import (
"strings"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/event"
"gopkg.in/urfave/cli.v1"
)
@ -156,3 +157,20 @@ func ParseFlags(args []string) bool {
}
return DefaultPluginLoader.ParseFlags(args)
}
type feedWrapper struct {
feed *event.Feed
}
func (f *feedWrapper) Send(item interface{}) int {
return f.feed.Send(item)
}
func (f *feedWrapper) Subscribe(ch interface{}) core.Subscription {
return f.feed.Subscribe(ch)
}
func (pl *PluginLoader) GetFeed() core.Feed {
return &feedWrapper{&event.Feed{}}
}

9
rpc/plugin_subscriptions.go
View File

@ -104,7 +104,9 @@ func callbackifyChanPubSub(receiver, fn reflect.Value) *callback {
if !recvOK {
return
}
notifier.Notify(rpcSub.ID, val.Interface())
if err := notifier.Notify(rpcSub.ID, val.Interface()); err != nil {
log.Warn("Subscription notification failed", "id", rpcSub.ID, "err", err)
}
case 1:
cancel()
return
@ -126,15 +128,10 @@ func pluginExtendedCallbacks(callbacks map[string]*callback, receiver reflect.Va
if method.PkgPath != "" {
continue // method not exported
}
if method.Name == "Timer" {
methodType := method.Func.Type()
log.Info("Timer method", "in", methodType.NumIn(), "out", methodType.NumOut(), "contextType", isContextType(methodType.In(1)), "chanType", isChanType(methodType.Out(0)), "chandir", methodType.Out(0).ChanDir() & reflect.RecvDir == reflect.RecvDir, "errorType", isErrorType(methodType.Out(1)))
}
if isChanPubsub(method.Type) {
cb := callbackifyChanPubSub(receiver, method.Func)
name := formatName(method.Name)
callbacks[name] = cb
log.Info("Added chanPubsub", "name", name, "args", cb.argTypes)
}
}
}