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authorBas van Kervel <bas@ethdev.com>2015-06-16 20:59:39 +0800
committerBas van Kervel <bas@ethdev.com>2015-06-22 14:54:21 +0800
commitc3f6c322c07a96d3930c75d05ed3859e7d80ddbc (patch)
tree8d702eb65113923b0b6a40c0d1d064f82ae2fb44
parent5c25403b13a698267230f859e822a7f714082198 (diff)
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added DB api
-rw-r--r--rpc/api/admin.go6
-rw-r--r--rpc/api/api.go5
-rw-r--r--rpc/api/db.go128
-rw-r--r--rpc/api/db_args.go110
-rw-r--r--rpc/api/db_js.go41
-rw-r--r--rpc/api/utils.go10
6 files changed, 295 insertions, 5 deletions
diff --git a/rpc/api/admin.go b/rpc/api/admin.go
index a6b9cf050..532bdcadd 100644
--- a/rpc/api/admin.go
+++ b/rpc/api/admin.go
@@ -222,10 +222,10 @@ func (self *adminApi) ChainSyncStatus(req *shared.Request) (interface{}, error)
pending, cached, importing, estimate := self.ethereum.Downloader().Stats()
return map[string]interface{}{
- "blocksAvailable": pending,
+ "blocksAvailable": pending,
"blocksWaitingForImport": cached,
- "importing": importing,
- "estimate": estimate.String(),
+ "importing": importing,
+ "estimate": estimate.String(),
}, nil
}
diff --git a/rpc/api/api.go b/rpc/api/api.go
index dec67fed1..7fc22a263 100644
--- a/rpc/api/api.go
+++ b/rpc/api/api.go
@@ -9,6 +9,7 @@ import (
const (
AdminApiName = "admin"
EthApiName = "eth"
+ DbApiName = "db"
DebugApiName = "debug"
MergedApiName = "merged"
MinerApiName = "miner"
@@ -21,12 +22,12 @@ const (
var (
DefaultHttpRpcApis = strings.Join([]string{
- EthApiName, NetApiName, Web3ApiName,
+ DbApiName, EthApiName, NetApiName, Web3ApiName,
}, ",")
// List with all API's which are offered over the IPC interface by default
DefaultIpcApis = strings.Join([]string{
- AdminApiName, EthApiName, DebugApiName, MinerApiName, NetApiName,
+ AdminApiName, DbApiName, EthApiName, DebugApiName, MinerApiName, NetApiName,
ShhApiName, TxPoolApiName, PersonalApiName, Web3ApiName,
}, ",")
)
diff --git a/rpc/api/db.go b/rpc/api/db.go
new file mode 100644
index 000000000..745269168
--- /dev/null
+++ b/rpc/api/db.go
@@ -0,0 +1,128 @@
+package api
+
+import (
+ "github.com/ethereum/go-ethereum/eth"
+ "github.com/ethereum/go-ethereum/rpc/codec"
+ "github.com/ethereum/go-ethereum/rpc/shared"
+ "github.com/ethereum/go-ethereum/xeth"
+)
+
+const (
+ DbApiversion = "1.0"
+)
+
+var (
+ // mapping between methods and handlers
+ DbMapping = map[string]dbhandler{
+ "db_getString": (*dbApi).GetString,
+ "db_putString": (*dbApi).PutString,
+ "db_getHex": (*dbApi).GetHex,
+ "db_putHex": (*dbApi).PutHex,
+ }
+)
+
+// db callback handler
+type dbhandler func(*dbApi, *shared.Request) (interface{}, error)
+
+// db api provider
+type dbApi struct {
+ xeth *xeth.XEth
+ ethereum *eth.Ethereum
+ methods map[string]dbhandler
+ codec codec.ApiCoder
+}
+
+// create a new db api instance
+func NewDbApi(xeth *xeth.XEth, ethereum *eth.Ethereum, coder codec.Codec) *dbApi {
+ return &dbApi{
+ xeth: xeth,
+ ethereum: ethereum,
+ methods: DbMapping,
+ codec: coder.New(nil),
+ }
+}
+
+// collection with supported methods
+func (self *dbApi) Methods() []string {
+ methods := make([]string, len(self.methods))
+ i := 0
+ for k := range self.methods {
+ methods[i] = k
+ i++
+ }
+ return methods
+}
+
+// Execute given request
+func (self *dbApi) Execute(req *shared.Request) (interface{}, error) {
+ if callback, ok := self.methods[req.Method]; ok {
+ return callback(self, req)
+ }
+
+ return nil, &shared.NotImplementedError{req.Method}
+}
+
+func (self *dbApi) Name() string {
+ return DbApiName
+}
+
+func (self *dbApi) ApiVersion() string {
+ return DbApiversion
+}
+
+func (self *dbApi) GetString(req *shared.Request) (interface{}, error) {
+ args := new(DbArgs)
+ if err := self.codec.Decode(req.Params, &args); err != nil {
+ return nil, shared.NewDecodeParamError(err.Error())
+ }
+
+ if err := args.requirements(); err != nil {
+ return nil, err
+ }
+
+ ret, err := self.xeth.DbGet([]byte(args.Database + args.Key))
+ return string(ret), err
+}
+
+func (self *dbApi) PutString(req *shared.Request) (interface{}, error) {
+ args := new(DbArgs)
+ if err := self.codec.Decode(req.Params, &args); err != nil {
+ return nil, shared.NewDecodeParamError(err.Error())
+ }
+
+ if err := args.requirements(); err != nil {
+ return nil, err
+ }
+
+ return self.xeth.DbPut([]byte(args.Database+args.Key), args.Value), nil
+}
+
+func (self *dbApi) GetHex(req *shared.Request) (interface{}, error) {
+ args := new(DbHexArgs)
+ if err := self.codec.Decode(req.Params, &args); err != nil {
+ return nil, shared.NewDecodeParamError(err.Error())
+ }
+
+ if err := args.requirements(); err != nil {
+ return nil, err
+ }
+
+ if res, err := self.xeth.DbGet([]byte(args.Database + args.Key)); err == nil {
+ return newHexData(res), nil
+ } else {
+ return nil, err
+ }
+}
+
+func (self *dbApi) PutHex(req *shared.Request) (interface{}, error) {
+ args := new(DbHexArgs)
+ if err := self.codec.Decode(req.Params, &args); err != nil {
+ return nil, shared.NewDecodeParamError(err.Error())
+ }
+
+ if err := args.requirements(); err != nil {
+ return nil, err
+ }
+
+ return self.xeth.DbPut([]byte(args.Database+args.Key), args.Value), nil
+}
diff --git a/rpc/api/db_args.go b/rpc/api/db_args.go
new file mode 100644
index 000000000..459616d87
--- /dev/null
+++ b/rpc/api/db_args.go
@@ -0,0 +1,110 @@
+package api
+
+import (
+ "encoding/json"
+
+ "github.com/ethereum/go-ethereum/common"
+ "github.com/ethereum/go-ethereum/rpc/shared"
+)
+
+type DbArgs struct {
+ Database string
+ Key string
+ Value []byte
+}
+
+func (args *DbArgs) UnmarshalJSON(b []byte) (err error) {
+ var obj []interface{}
+ if err := json.Unmarshal(b, &obj); err != nil {
+ return shared.NewDecodeParamError(err.Error())
+ }
+
+ if len(obj) < 2 {
+ return shared.NewInsufficientParamsError(len(obj), 2)
+ }
+
+ var objstr string
+ var ok bool
+
+ if objstr, ok = obj[0].(string); !ok {
+ return shared.NewInvalidTypeError("database", "not a string")
+ }
+ args.Database = objstr
+
+ if objstr, ok = obj[1].(string); !ok {
+ return shared.NewInvalidTypeError("key", "not a string")
+ }
+ args.Key = objstr
+
+ if len(obj) > 2 {
+ objstr, ok = obj[2].(string)
+ if !ok {
+ return shared.NewInvalidTypeError("value", "not a string")
+ }
+
+ args.Value = []byte(objstr)
+ }
+
+ return nil
+}
+
+func (a *DbArgs) requirements() error {
+ if len(a.Database) == 0 {
+ return shared.NewValidationError("Database", "cannot be blank")
+ }
+ if len(a.Key) == 0 {
+ return shared.NewValidationError("Key", "cannot be blank")
+ }
+ return nil
+}
+
+type DbHexArgs struct {
+ Database string
+ Key string
+ Value []byte
+}
+
+func (args *DbHexArgs) UnmarshalJSON(b []byte) (err error) {
+ var obj []interface{}
+ if err := json.Unmarshal(b, &obj); err != nil {
+ return shared.NewDecodeParamError(err.Error())
+ }
+
+ if len(obj) < 2 {
+ return shared.NewInsufficientParamsError(len(obj), 2)
+ }
+
+ var objstr string
+ var ok bool
+
+ if objstr, ok = obj[0].(string); !ok {
+ return shared.NewInvalidTypeError("database", "not a string")
+ }
+ args.Database = objstr
+
+ if objstr, ok = obj[1].(string); !ok {
+ return shared.NewInvalidTypeError("key", "not a string")
+ }
+ args.Key = objstr
+
+ if len(obj) > 2 {
+ objstr, ok = obj[2].(string)
+ if !ok {
+ return shared.NewInvalidTypeError("value", "not a string")
+ }
+
+ args.Value = common.FromHex(objstr)
+ }
+
+ return nil
+}
+
+func (a *DbHexArgs) requirements() error {
+ if len(a.Database) == 0 {
+ return shared.NewValidationError("Database", "cannot be blank")
+ }
+ if len(a.Key) == 0 {
+ return shared.NewValidationError("Key", "cannot be blank")
+ }
+ return nil
+}
diff --git a/rpc/api/db_js.go b/rpc/api/db_js.go
new file mode 100644
index 000000000..62cdcd20e
--- /dev/null
+++ b/rpc/api/db_js.go
@@ -0,0 +1,41 @@
+package api
+
+const Db_JS = `
+web3._extend({
+ property: 'db',
+ methods:
+ [
+ new web3._extend.Method({
+ name: 'getString',
+ call: 'db_getString',
+ params: 2,
+ inputFormatter: [web3._extend.formatters.formatInputString, web3._extend.formatters.formatInputString],
+ outputFormatter: web3._extend.formatters.formatOutputString
+ }),
+ new web3._extend.Method({
+ name: 'putString',
+ call: 'db_putString',
+ params: 3,
+ inputFormatter: [web3._extend.formatters.formatInputString, web3._extend.formatters.formatInputString, web3._extend.formatters.formatInputString],
+ outputFormatter: web3._extend.formatters.formatOutputBool
+ }),
+ new web3._extend.Method({
+ name: 'getHex',
+ call: 'db_getHex',
+ params: 2,
+ inputFormatter: [web3._extend.formatters.formatInputString, web3._extend.formatters.formatInputString],
+ outputFormatter: web3._extend.formatters.formatOutputString
+ }),
+ new web3._extend.Method({
+ name: 'putHex',
+ call: 'db_putHex',
+ params: 3,
+ inputFormatter: [web3._extend.formatters.formatInputString, web3._extend.formatters.formatInputString, web3._extend.formatters.formatInputString],
+ outputFormatter: web3._extend.formatters.formatOutputBool
+ }),
+ ],
+ properties:
+ [
+ ]
+});
+`
diff --git a/rpc/api/utils.go b/rpc/api/utils.go
index 40bcae52f..a4ce6409a 100644
--- a/rpc/api/utils.go
+++ b/rpc/api/utils.go
@@ -24,6 +24,12 @@ var (
"setSolc",
"datadir",
},
+ "db": []string{
+ "getString",
+ "putString",
+ "getHex",
+ "putHex",
+ },
"debug": []string{
"dumpBlock",
"getBlockRlp",
@@ -137,6 +143,8 @@ func ParseApiString(apistr string, codec codec.Codec, xeth *xeth.XEth, eth *eth.
apis[i] = NewAdminApi(xeth, eth, codec)
case DebugApiName:
apis[i] = NewDebugApi(xeth, eth, codec)
+ case DbApiName:
+ apis[i] = NewDbApi(xeth, eth, codec)
case EthApiName:
apis[i] = NewEthApi(xeth, codec)
case MinerApiName:
@@ -165,6 +173,8 @@ func Javascript(name string) string {
return Admin_JS
case DebugApiName:
return Debug_JS
+ case DbApiName:
+ return Db_JS
case MinerApiName:
return Miner_JS
case NetApiName: