-
Notifications
You must be signed in to change notification settings - Fork 14
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #281 from oasisprotocol/feature/280
feat: add archive web3 gw support
- Loading branch information
Showing
9 changed files
with
303 additions
and
26 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,179 @@ | ||
| // Package archive implements an archive node client. | ||
| package archive | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "math/big" | ||
|
|
||
| "github.com/ethereum/go-ethereum" | ||
| "github.com/ethereum/go-ethereum/common" | ||
| "github.com/ethereum/go-ethereum/common/hexutil" | ||
| "github.com/ethereum/go-ethereum/ethclient" | ||
|
|
||
| "github.com/oasisprotocol/emerald-web3-gateway/rpc/utils" | ||
| ) | ||
|
|
||
| // Client is an archive node client backed by web, implementing a limited | ||
| // subset of rpc/eth.API, that is sufficient to support historical queries. | ||
| // | ||
| // All of the parameters that are `ethrpc.BlockNumberOrHash` just assume | ||
| // that the caller will handle converting to a block number, because they | ||
| // need to anyway, and historical estimate gas calls are not supported. | ||
| type Client struct { | ||
| inner *ethclient.Client | ||
| latestBlock uint64 | ||
| } | ||
|
|
||
| func (c *Client) LatestBlock() uint64 { | ||
| return c.latestBlock | ||
| } | ||
|
|
||
| func (c *Client) GetStorageAt( | ||
| ctx context.Context, | ||
| address common.Address, | ||
| position hexutil.Big, | ||
| blockNr uint64, | ||
| ) (hexutil.Big, error) { | ||
| storageBytes, err := c.inner.StorageAt( | ||
| ctx, | ||
| address, | ||
| common.BigToHash((*big.Int)(&position)), | ||
| new(big.Int).SetUint64(blockNr), | ||
| ) | ||
| if err != nil { | ||
| return hexutil.Big{}, fmt.Errorf("archive: failed to query storage: %w", err) | ||
| } | ||
|
|
||
| // Oh for fuck's sake. | ||
| var storageBig big.Int | ||
| storageBig.SetBytes(storageBytes) | ||
| return hexutil.Big(storageBig), nil | ||
| } | ||
|
|
||
| func (c *Client) GetBalance( | ||
| ctx context.Context, | ||
| address common.Address, | ||
| blockNr uint64, | ||
| ) (*hexutil.Big, error) { | ||
| balance, err := c.inner.BalanceAt( | ||
| ctx, | ||
| address, | ||
| new(big.Int).SetUint64(blockNr), | ||
| ) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("archive: failed to query balance: %w", err) | ||
| } | ||
|
|
||
| return (*hexutil.Big)(balance), nil | ||
| } | ||
|
|
||
| func (c *Client) GetTransactionCount( | ||
| ctx context.Context, | ||
| address common.Address, | ||
| blockNr uint64, | ||
| ) (*hexutil.Uint64, error) { | ||
| nonce, err := c.inner.NonceAt( | ||
| ctx, | ||
| address, | ||
| new(big.Int).SetUint64(blockNr), | ||
| ) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("archive: failed to query nonce: %w", err) | ||
| } | ||
|
|
||
| return (*hexutil.Uint64)(&nonce), nil | ||
| } | ||
|
|
||
| func (c *Client) GetCode( | ||
| ctx context.Context, | ||
| address common.Address, | ||
| blockNr uint64, | ||
| ) (hexutil.Bytes, error) { | ||
| code, err := c.inner.CodeAt( | ||
| ctx, | ||
| address, | ||
| new(big.Int).SetUint64(blockNr), | ||
| ) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("archive: failed to query code: %w", err) | ||
| } | ||
|
|
||
| return hexutil.Bytes(code), nil | ||
| } | ||
|
|
||
| func (c *Client) Call( | ||
| ctx context.Context, | ||
| args utils.TransactionArgs, | ||
| blockNr uint64, | ||
| ) (hexutil.Bytes, error) { | ||
| // You have got to be fucking shitting me, what in the actual fuck. | ||
|
|
||
| if args.From == nil { | ||
| return nil, fmt.Errorf("archive: no `from` in call") | ||
| } | ||
| callMsg := ethereum.CallMsg{ | ||
| From: *args.From, | ||
| To: args.To, | ||
| GasPrice: (*big.Int)(args.GasPrice), | ||
| GasFeeCap: (*big.Int)(args.MaxFeePerGas), | ||
| GasTipCap: (*big.Int)(args.MaxPriorityFeePerGas), | ||
| Value: (*big.Int)(args.Value), | ||
| // args.Nonce? I guess it can't be that important if there's no field for it. | ||
| } | ||
| if args.Gas != nil { | ||
| callMsg.Gas = uint64(*args.Gas) | ||
| } | ||
| if args.Data != nil { | ||
| callMsg.Data = []byte(*args.Data) | ||
| } | ||
| if args.Input != nil { | ||
| // Data and Input are the same damn thing, Input is newer. | ||
| callMsg.Data = []byte(*args.Input) | ||
| } | ||
| if args.AccessList != nil { | ||
| callMsg.AccessList = *args.AccessList | ||
| } | ||
|
|
||
| result, err := c.inner.CallContract( | ||
| ctx, | ||
| callMsg, | ||
| new(big.Int).SetUint64(blockNr), | ||
| ) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("archive: failed to call contract: %w", err) | ||
| } | ||
|
|
||
| return hexutil.Bytes(result), nil | ||
| } | ||
|
|
||
| func (c *Client) Close() { | ||
| c.inner.Close() | ||
| c.inner = nil | ||
| } | ||
|
|
||
| func New( | ||
| ctx context.Context, | ||
| uri string, | ||
| heightMax uint64, | ||
| ) (*Client, error) { | ||
| c, err := ethclient.DialContext(ctx, uri) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("archive: failed to dial archival web3 node: %w", err) | ||
| } | ||
|
|
||
| var latestBlock uint64 | ||
| switch heightMax { | ||
| case 0: | ||
| if latestBlock, err = c.BlockNumber(ctx); err != nil { | ||
| return nil, fmt.Errorf("archive: failed to query block number: %w", err) | ||
| } | ||
| default: | ||
| latestBlock = heightMax | ||
| } | ||
|
|
||
| return &Client{ | ||
| inner: c, | ||
| latestBlock: latestBlock, | ||
| }, nil | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.