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-rw-r--r--rpc/api.go734
1 files changed, 734 insertions, 0 deletions
diff --git a/rpc/api.go b/rpc/api.go
new file mode 100644
index 000000000..28024c206
--- /dev/null
+++ b/rpc/api.go
@@ -0,0 +1,734 @@
+/*
+For each request type, define the following:
+
+1. RpcRequest "To" method [message.go], which does basic validation and conversion to "Args" type via json.Decoder()
+2. json.Decoder() calls "UnmarshalON" defined on each "Args" struct
+3. EthereumApi method, taking the "Args" type and replying with an interface to be marshalled to ON
+
+*/
+package rpc
+
+import (
+ "fmt"
+ "math/big"
+ "strings"
+ "sync"
+ "time"
+
+ "github.com/ethereum/go-ethereum/core"
+ "github.com/ethereum/go-ethereum/core/types"
+ "github.com/ethereum/go-ethereum/crypto"
+ "github.com/ethereum/go-ethereum/ethdb"
+ "github.com/ethereum/go-ethereum/ethutil"
+ "github.com/ethereum/go-ethereum/event"
+ "github.com/ethereum/go-ethereum/event/filter"
+ "github.com/ethereum/go-ethereum/state"
+ "github.com/ethereum/go-ethereum/ui"
+ "github.com/ethereum/go-ethereum/xeth"
+)
+
+var (
+ defaultGasPrice = big.NewInt(10000000000000)
+ defaultGas = big.NewInt(10000)
+ filterTickerTime = 15 * time.Second
+)
+
+type EthereumApi struct {
+ eth *xeth.XEth
+ xethMu sync.RWMutex
+ mux *event.TypeMux
+
+ quit chan struct{}
+ filterManager *filter.FilterManager
+
+ logMut sync.RWMutex
+ logs map[int]*logFilter
+
+ messagesMut sync.RWMutex
+ messages map[int]*whisperFilter
+ // Register keeps a list of accounts and transaction data
+ regmut sync.Mutex
+ register map[string][]*NewTxArgs
+
+ db ethutil.Database
+
+ defaultBlockAge int64
+}
+
+func NewEthereumApi(eth *xeth.XEth) *EthereumApi {
+ db, _ := ethdb.NewLDBDatabase("dapps")
+ api := &EthereumApi{
+ eth: eth,
+ mux: eth.Backend().EventMux(),
+ quit: make(chan struct{}),
+ filterManager: filter.NewFilterManager(eth.Backend().EventMux()),
+ logs: make(map[int]*logFilter),
+ messages: make(map[int]*whisperFilter),
+ db: db,
+ defaultBlockAge: -1,
+ }
+ go api.filterManager.Start()
+ go api.start()
+
+ return api
+}
+
+func (self *EthereumApi) setStateByBlockNumber(num int64) {
+ chain := self.xeth().Backend().ChainManager()
+ var block *types.Block
+
+ if self.defaultBlockAge < 0 {
+ num = chain.CurrentBlock().Number().Int64() + num + 1
+ }
+ block = chain.GetBlockByNumber(uint64(num))
+
+ if block != nil {
+ self.useState(state.New(block.Root(), self.xeth().Backend().Db()))
+ } else {
+ self.useState(chain.State())
+ }
+}
+
+func (self *EthereumApi) start() {
+ timer := time.NewTicker(filterTickerTime)
+ events := self.mux.Subscribe(core.ChainEvent{})
+
+done:
+ for {
+ select {
+ case ev := <-events.Chan():
+ switch ev.(type) {
+ case core.ChainEvent:
+ if self.defaultBlockAge < 0 {
+ self.setStateByBlockNumber(self.defaultBlockAge)
+ }
+ }
+ case <-timer.C:
+ self.logMut.Lock()
+ self.messagesMut.Lock()
+ for id, filter := range self.logs {
+ if time.Since(filter.timeout) > 20*time.Second {
+ self.filterManager.UninstallFilter(id)
+ delete(self.logs, id)
+ }
+ }
+
+ for id, filter := range self.messages {
+ if time.Since(filter.timeout) > 20*time.Second {
+ self.xeth().Whisper().Unwatch(id)
+ delete(self.messages, id)
+ }
+ }
+ self.logMut.Unlock()
+ self.messagesMut.Unlock()
+ case <-self.quit:
+ break done
+ }
+ }
+}
+
+func (self *EthereumApi) stop() {
+ close(self.quit)
+}
+
+func (self *EthereumApi) Register(args string, reply *interface{}) error {
+ self.regmut.Lock()
+ defer self.regmut.Unlock()
+
+ if _, ok := self.register[args]; ok {
+ self.register[args] = nil // register with empty
+ }
+ return nil
+}
+
+func (self *EthereumApi) Unregister(args string, reply *interface{}) error {
+ self.regmut.Lock()
+ defer self.regmut.Unlock()
+
+ delete(self.register, args)
+
+ return nil
+}
+
+func (self *EthereumApi) WatchTx(args string, reply *interface{}) error {
+ self.regmut.Lock()
+ defer self.regmut.Unlock()
+
+ txs := self.register[args]
+ self.register[args] = nil
+
+ *reply = txs
+ return nil
+}
+
+func (self *EthereumApi) NewFilter(args *FilterOptions, reply *interface{}) error {
+ var id int
+ filter := core.NewFilter(self.xeth().Backend())
+ filter.SetOptions(toFilterOptions(args))
+ filter.LogsCallback = func(logs state.Logs) {
+ self.logMut.Lock()
+ defer self.logMut.Unlock()
+
+ self.logs[id].add(logs...)
+ }
+ id = self.filterManager.InstallFilter(filter)
+ self.logs[id] = &logFilter{timeout: time.Now()}
+
+ *reply = id
+
+ return nil
+}
+
+func (self *EthereumApi) UninstallFilter(id int, reply *interface{}) error {
+ delete(self.logs, id)
+ self.filterManager.UninstallFilter(id)
+ *reply = true
+ return nil
+}
+
+func (self *EthereumApi) NewFilterString(args string, reply *interface{}) error {
+ var id int
+ filter := core.NewFilter(self.xeth().Backend())
+
+ callback := func(block *types.Block) {
+ self.logMut.Lock()
+ defer self.logMut.Unlock()
+
+ self.logs[id].add(&state.StateLog{})
+ }
+ if args == "pending" {
+ filter.PendingCallback = callback
+ } else if args == "chain" {
+ filter.BlockCallback = callback
+ }
+
+ id = self.filterManager.InstallFilter(filter)
+ self.logs[id] = &logFilter{timeout: time.Now()}
+ *reply = id
+
+ return nil
+}
+
+func (self *EthereumApi) FilterChanged(id int, reply *interface{}) error {
+ self.logMut.Lock()
+ defer self.logMut.Unlock()
+
+ if self.logs[id] != nil {
+ *reply = toLogs(self.logs[id].get())
+ }
+
+ return nil
+}
+
+func (self *EthereumApi) Logs(id int, reply *interface{}) error {
+ self.logMut.Lock()
+ defer self.logMut.Unlock()
+
+ filter := self.filterManager.GetFilter(id)
+ if filter != nil {
+ *reply = toLogs(filter.Find())
+ }
+
+ return nil
+}
+
+func (self *EthereumApi) AllLogs(args *FilterOptions, reply *interface{}) error {
+ filter := core.NewFilter(self.xeth().Backend())
+ filter.SetOptions(toFilterOptions(args))
+
+ *reply = toLogs(filter.Find())
+
+ return nil
+}
+
+func (p *EthereumApi) GetBlock(args *GetBlockArgs, reply *interface{}) error {
+ // This seems a bit precarious Maybe worth splitting to discrete functions
+ if len(args.Hash) > 0 {
+ *reply = p.xeth().BlockByHash(args.Hash)
+ } else {
+ *reply = p.xeth().BlockByNumber(args.BlockNumber)
+ }
+ return nil
+}
+
+func (p *EthereumApi) Transact(args *NewTxArgs, reply *interface{}) error {
+ if len(args.Gas) == 0 {
+ args.Gas = defaultGas.String()
+ }
+
+ if len(args.GasPrice) == 0 {
+ args.GasPrice = defaultGasPrice.String()
+ }
+
+ // TODO if no_private_key then
+ //if _, exists := p.register[args.From]; exists {
+ // p.register[args.From] = append(p.register[args.From], args)
+ //} else {
+ /*
+ account := accounts.Get(fromHex(args.From))
+ if account != nil {
+ if account.Unlocked() {
+ if !unlockAccount(account) {
+ return
+ }
+ }
+
+ result, _ := account.Transact(fromHex(args.To), fromHex(args.Value), fromHex(args.Gas), fromHex(args.GasPrice), fromHex(args.Data))
+ if len(result) > 0 {
+ *reply = toHex(result)
+ }
+ } else if _, exists := p.register[args.From]; exists {
+ p.register[ags.From] = append(p.register[args.From], args)
+ }
+ */
+ result, _ := p.xeth().Transact( /* TODO specify account */ args.To, args.Value, args.Gas, args.GasPrice, args.Data)
+ *reply = result
+ //}
+
+ return nil
+}
+
+func (p *EthereumApi) Call(args *NewTxArgs, reply *interface{}) error {
+ result, err := p.xeth().Call( /* TODO specify account */ args.To, args.Value, args.Gas, args.GasPrice, args.Data)
+ if err != nil {
+ return err
+ }
+
+ *reply = result
+ return nil
+}
+
+func (p *EthereumApi) PushTx(args *PushTxArgs, reply *interface{}) error {
+ err := args.requirementsPushTx()
+ if err != nil {
+ return err
+ }
+ result, _ := p.xeth().PushTx(args.Tx)
+ *reply = result
+ return nil
+}
+
+func (p *EthereumApi) GetStateAt(args *GetStateArgs, reply *interface{}) error {
+ err := args.requirements()
+ if err != nil {
+ return err
+ }
+
+ state := p.xeth().State().SafeGet(args.Address)
+
+ value := state.StorageString(args.Key)
+ var hx string
+ if strings.Index(args.Key, "0x") == 0 {
+ hx = string([]byte(args.Key)[2:])
+ } else {
+ // Convert the incoming string (which is a bigint) into hex
+ i, _ := new(big.Int).SetString(args.Key, 10)
+ hx = ethutil.Bytes2Hex(i.Bytes())
+ }
+ rpclogger.Debugf("GetStateAt(%s, %s)\n", args.Address, hx)
+ *reply = map[string]string{args.Key: value.Str()}
+ return nil
+}
+
+func (p *EthereumApi) GetStorageAt(args *GetStorageArgs, reply *interface{}) error {
+ err := args.requirements()
+ if err != nil {
+ return err
+ }
+
+ *reply = p.xeth().State().SafeGet(args.Address).Storage()
+ return nil
+}
+
+func (p *EthereumApi) GetPeerCount(reply *interface{}) error {
+ *reply = p.xeth().PeerCount()
+ return nil
+}
+
+func (p *EthereumApi) GetIsListening(reply *interface{}) error {
+ *reply = p.xeth().IsListening()
+ return nil
+}
+
+func (p *EthereumApi) GetCoinbase(reply *interface{}) error {
+ *reply = p.xeth().Coinbase()
+ return nil
+}
+
+func (p *EthereumApi) Accounts(reply *interface{}) error {
+ *reply = p.xeth().Accounts()
+ return nil
+}
+
+func (p *EthereumApi) GetIsMining(reply *interface{}) error {
+ *reply = p.xeth().IsMining()
+ return nil
+}
+
+func (p *EthereumApi) SetMining(shouldmine bool, reply *interface{}) error {
+ *reply = p.xeth().SetMining(shouldmine)
+ return nil
+}
+
+func (p *EthereumApi) GetDefaultBlockAge(reply *interface{}) error {
+ *reply = p.defaultBlockAge
+ return nil
+}
+
+func (p *EthereumApi) SetDefaultBlockAge(defaultBlockAge int64, reply *interface{}) error {
+ p.defaultBlockAge = defaultBlockAge
+ p.setStateByBlockNumber(p.defaultBlockAge)
+
+ *reply = true
+ return nil
+}
+
+func (p *EthereumApi) BlockNumber(reply *interface{}) error {
+ *reply = p.xeth().Backend().ChainManager().CurrentBlock().Number()
+ return nil
+}
+
+func (p *EthereumApi) GetTxCountAt(args *GetTxCountArgs, reply *interface{}) error {
+ err := args.requirements()
+ if err != nil {
+ return err
+ }
+ *reply = p.xeth().TxCountAt(args.Address)
+ return nil
+}
+
+func (p *EthereumApi) GetBalanceAt(args *GetBalanceArgs, reply *interface{}) error {
+ err := args.requirements()
+ if err != nil {
+ return err
+ }
+ state := p.xeth().State().SafeGet(args.Address)
+ *reply = toHex(state.Balance().Bytes())
+ return nil
+}
+
+func (p *EthereumApi) GetCodeAt(args *GetCodeAtArgs, reply *interface{}) error {
+ err := args.requirements()
+ if err != nil {
+ return err
+ }
+ *reply = p.xeth().CodeAt(args.Address)
+ return nil
+}
+
+func (p *EthereumApi) GetCompilers(reply *interface{}) error {
+ c := []string{"serpent"}
+ *reply = c
+ return nil
+}
+
+func (p *EthereumApi) CompileSerpent(script string, reply *interface{}) error {
+ res, err := ethutil.Compile(script, false)
+ if err != nil {
+ return err
+ }
+ *reply = res
+ return nil
+}
+
+func (p *EthereumApi) Sha3(args *Sha3Args, reply *interface{}) error {
+ *reply = toHex(crypto.Sha3(fromHex(args.Data)))
+ return nil
+}
+
+func (p *EthereumApi) DbPut(args *DbArgs, reply *interface{}) error {
+ err := args.requirements()
+ if err != nil {
+ return err
+ }
+
+ p.db.Put([]byte(args.Database+args.Key), []byte(args.Value))
+ *reply = true
+ return nil
+}
+
+func (p *EthereumApi) DbGet(args *DbArgs, reply *interface{}) error {
+ err := args.requirements()
+ if err != nil {
+ return err
+ }
+
+ res, _ := p.db.Get([]byte(args.Database + args.Key))
+ *reply = string(res)
+ return nil
+}
+
+func (p *EthereumApi) NewWhisperIdentity(reply *interface{}) error {
+ *reply = p.xeth().Whisper().NewIdentity()
+ return nil
+}
+
+func (p *EthereumApi) NewWhisperFilter(args *xeth.Options, reply *interface{}) error {
+ var id int
+ args.Fn = func(msg xeth.WhisperMessage) {
+ p.messagesMut.Lock()
+ defer p.messagesMut.Unlock()
+ p.messages[id].add(msg) // = append(p.messages[id], msg)
+ }
+ id = p.xeth().Whisper().Watch(args)
+ p.messages[id] = &whisperFilter{timeout: time.Now()}
+ *reply = id
+ return nil
+}
+
+func (self *EthereumApi) MessagesChanged(id int, reply *interface{}) error {
+ self.messagesMut.Lock()
+ defer self.messagesMut.Unlock()
+
+ if self.messages[id] != nil {
+ *reply = self.messages[id].get()
+ }
+
+ return nil
+}
+
+func (p *EthereumApi) WhisperPost(args *WhisperMessageArgs, reply *interface{}) error {
+ err := p.xeth().Whisper().Post(args.Payload, args.To, args.From, args.Topic, args.Priority, args.Ttl)
+ if err != nil {
+ return err
+ }
+
+ *reply = true
+ return nil
+}
+
+func (p *EthereumApi) HasWhisperIdentity(args string, reply *interface{}) error {
+ *reply = p.xeth().Whisper().HasIdentity(args)
+ return nil
+}
+
+func (p *EthereumApi) WhisperMessages(id int, reply *interface{}) error {
+ *reply = p.xeth().Whisper().Messages(id)
+ return nil
+}
+
+func (p *EthereumApi) GetRequestReply(req *RpcRequest, reply *interface{}) error {
+ // Spec at https://github.com/ethereum/wiki/wiki/Generic-JSON-RPC
+ rpclogger.DebugDetailf("%T %s", req.Params, req.Params)
+ switch req.Method {
+ case "eth_coinbase":
+ return p.GetCoinbase(reply)
+ case "eth_listening":
+ return p.GetIsListening(reply)
+ case "eth_mining":
+ return p.GetIsMining(reply)
+ case "eth_setMining":
+ args, err := req.ToBoolArgs()
+ if err != nil {
+ return err
+ }
+ return p.SetMining(args, reply)
+ case "eth_defaultBlock":
+ return p.GetDefaultBlockAge(reply)
+ case "eth_setDefaultBlock":
+ args, err := req.ToIntArgs()
+ if err != nil {
+ return err
+ }
+ return p.SetDefaultBlockAge(int64(args), reply)
+ case "eth_peerCount":
+ return p.GetPeerCount(reply)
+ case "eth_number":
+ return p.BlockNumber(reply)
+ case "eth_accounts":
+ return p.Accounts(reply)
+ case "eth_countAt":
+ args, err := req.ToGetTxCountArgs()
+ if err != nil {
+ return err
+ }
+ return p.GetTxCountAt(args, reply)
+ case "eth_codeAt":
+ args, err := req.ToGetCodeAtArgs()
+ if err != nil {
+ return err
+ }
+ return p.GetCodeAt(args, reply)
+ case "eth_balanceAt":
+ args, err := req.ToGetBalanceArgs()
+ if err != nil {
+ return err
+ }
+ return p.GetBalanceAt(args, reply)
+ case "eth_stateAt":
+ args, err := req.ToGetStateArgs()
+ if err != nil {
+ return err
+ }
+ return p.GetStateAt(args, reply)
+ case "eth_storageAt":
+ args, err := req.ToStorageAtArgs()
+ if err != nil {
+ return err
+ }
+ return p.GetStorageAt(args, reply)
+ case "eth_blockByNumber", "eth_blockByHash":
+ args, err := req.ToGetBlockArgs()
+ if err != nil {
+ return err
+ }
+ return p.GetBlock(args, reply)
+ case "eth_transact":
+ args, err := req.ToNewTxArgs()
+ if err != nil {
+ return err
+ }
+ return p.Transact(args, reply)
+ case "eth_call":
+ args, err := req.ToNewTxArgs()
+ if err != nil {
+ return err
+ }
+ return p.Call(args, reply)
+ case "eth_newFilter":
+ args, err := req.ToFilterArgs()
+ if err != nil {
+ return err
+ }
+ return p.NewFilter(args, reply)
+ case "eth_newFilterString":
+ args, err := req.ToFilterStringArgs()
+ if err != nil {
+ return err
+ }
+ return p.NewFilterString(args, reply)
+ case "eth_uninstallFilter":
+ args, err := req.ToUninstallFilterArgs()
+ if err != nil {
+ return err
+ }
+ return p.UninstallFilter(args, reply)
+ case "eth_changed":
+ args, err := req.ToIdArgs()
+ if err != nil {
+ return err
+ }
+ return p.FilterChanged(args, reply)
+ case "eth_filterLogs":
+ args, err := req.ToIdArgs()
+ if err != nil {
+ return err
+ }
+ return p.Logs(args, reply)
+ case "eth_logs":
+ args, err := req.ToFilterArgs()
+ if err != nil {
+ return err
+ }
+ return p.AllLogs(args, reply)
+ case "eth_gasPrice":
+ *reply = toHex(defaultGasPrice.Bytes())
+ return nil
+ case "eth_register":
+ args, err := req.ToRegisterArgs()
+ if err != nil {
+ return err
+ }
+ return p.Register(args, reply)
+ case "eth_unregister":
+ args, err := req.ToRegisterArgs()
+ if err != nil {
+ return err
+ }
+ return p.Unregister(args, reply)
+ case "eth_watchTx":
+ args, err := req.ToWatchTxArgs()
+ if err != nil {
+ return err
+ }
+ return p.WatchTx(args, reply)
+ case "eth_compilers":
+ return p.GetCompilers(reply)
+ case "eth_serpent":
+ args, err := req.ToCompileArgs()
+ if err != nil {
+ return err
+ }
+ return p.CompileSerpent(args, reply)
+ case "web3_sha3":
+ args, err := req.ToSha3Args()
+ if err != nil {
+ return err
+ }
+ return p.Sha3(args, reply)
+ case "db_put":
+ args, err := req.ToDbPutArgs()
+ if err != nil {
+ return err
+ }
+ return p.DbPut(args, reply)
+ case "db_get":
+ args, err := req.ToDbGetArgs()
+ if err != nil {
+ return err
+ }
+ return p.DbGet(args, reply)
+ case "shh_newIdentity":
+ return p.NewWhisperIdentity(reply)
+ case "shh_newFilter":
+ args, err := req.ToWhisperFilterArgs()
+ if err != nil {
+ return err
+ }
+ return p.NewWhisperFilter(args, reply)
+ case "shh_changed":
+ args, err := req.ToIdArgs()
+ if err != nil {
+ return err
+ }
+ return p.MessagesChanged(args, reply)
+ case "shh_post":
+ args, err := req.ToWhisperPostArgs()
+ if err != nil {
+ return err
+ }
+ return p.WhisperPost(args, reply)
+ case "shh_haveIdentity":
+ args, err := req.ToWhisperHasIdentityArgs()
+ if err != nil {
+ return err
+ }
+ return p.HasWhisperIdentity(args, reply)
+ case "shh_getMessages":
+ args, err := req.ToIdArgs()
+ if err != nil {
+ return err
+ }
+ return p.WhisperMessages(args, reply)
+ default:
+ return NewErrorWithMessage(errNotImplemented, req.Method)
+ }
+
+ rpclogger.DebugDetailf("Reply: %T %s", reply, reply)
+ return nil
+}
+
+func (self *EthereumApi) xeth() *xeth.XEth {
+ self.xethMu.RLock()
+ defer self.xethMu.RUnlock()
+
+ return self.eth
+}
+
+func (self *EthereumApi) useState(statedb *state.StateDB) {
+ self.xethMu.Lock()
+ defer self.xethMu.Unlock()
+
+ self.eth = self.eth.UseState(statedb)
+}
+
+func t(f ui.Frontend) {
+ // Call the password dialog
+ ret, err := f.Call("PasswordDialog")
+ if err != nil {
+ fmt.Println(err)
+ }
+ // Get the first argument
+ t, _ := ret.Get(0)
+ fmt.Println("return:", t)
+}
generated by cgit (git 2.34.1) at 2024-10-19 22:42:43 +0800