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Merge pull request #2207 from nspcc-dev/rpc/gethistoricalstate

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rpc: implement `getstate` and `findstates` RPC methods
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Roman Khimov 2021-10-13 15:27:51 +03:00 • committed by GitHub
commit 2bec43511d
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21 changed files with 741 additions and 56 deletions
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37
pkg/rpc/client/rpc.go
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@ -1,7 +1,6 @@
package client
import (
"encoding/base64"
"errors"
"fmt"
@ -374,6 +373,38 @@ func (c *Client) GetRawTransactionVerbose(hash util.Uint256) (*result.Transactio
return resp, nil
}
// GetState returns historical contract storage item state by the given stateroot,
// historical contract hash and historical item key.
func (c *Client) GetState(stateroot util.Uint256, historicalContractHash util.Uint160, historicalKey []byte) ([]byte, error) {
var (
params = request.NewRawParams(stateroot.StringLE(), historicalContractHash.StringLE(), historicalKey)
resp []byte
)
if err := c.performRequest("getstate", params, &resp); err != nil {
return nil, err
}
return resp, nil
}
// FindStates returns historical contract storage item states by the given stateroot,
// historical contract hash and historical prefix. If `start` path is specified, then items
// starting from `start` path are being returned (excluding item located at the start path).
// If `maxCount` specified, then maximum number of items to be returned equals to `maxCount`.
func (c *Client) FindStates(stateroot util.Uint256, historicalContractHash util.Uint160, historicalPrefix []byte,
start []byte, maxCount *int) (result.FindStates, error) {
var (
params = request.NewRawParams(stateroot.StringLE(), historicalContractHash.StringLE(), historicalPrefix, historicalPrefix, start)
resp result.FindStates
)
if maxCount != nil {
params.Values = append(params.Values, *maxCount)
}
if err := c.performRequest("findstates", params, &resp); err != nil {
return resp, err
}
return resp, nil
}
// GetStateHeight returns current validated and local node state height.
func (c *Client) GetStateHeight() (*result.StateHeight, error) {
var (
@ -388,12 +419,12 @@ func (c *Client) GetStateHeight() (*result.StateHeight, error) {
// GetStorageByID returns the stored value, according to the contract ID and the stored key.
func (c *Client) GetStorageByID(id int32, key []byte) ([]byte, error) {
return c.getStorage(request.NewRawParams(id, base64.StdEncoding.EncodeToString(key)))
return c.getStorage(request.NewRawParams(id, key))
}
// GetStorageByHash returns the stored value, according to the contract script hash and the stored key.
func (c *Client) GetStorageByHash(hash util.Uint160, key []byte) ([]byte, error) {
return c.getStorage(request.NewRawParams(hash.StringLE(), base64.StdEncoding.EncodeToString(key)))
return c.getStorage(request.NewRawParams(hash.StringLE(), key))
}
func (c *Client) getStorage(params request.RawParams) ([]byte, error) {