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proofs of non-existance in ProvingBlockChainClient

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This commit is contained in:
Robert Habermeier
2017-03-06 17:03:58 +01:00
parent 41effadb94
commit 8e9faa416d
5 changed files with 40 additions and 60 deletions
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17
ethcore/src/client/client.rs
View File

@@ -1585,23 +1585,14 @@ impl MayPanic for Client {
}
impl ::client::ProvingBlockChainClient for Client {
fn prove_storage(&self, key1: H256, key2: H256, from_level: u32, id: BlockId) -> Vec<Bytes> {
fn prove_storage(&self, key1: H256, key2: H256, id: BlockId) -> Option<(Vec<Bytes>, H256)> {
self.state_at(id)
.and_then(move |state| state.prove_storage(key1, key2, from_level).ok())
.unwrap_or_else(Vec::new)
.and_then(move |state| state.prove_storage(key1, key2).ok())
}
fn prove_account(&self, key1: H256, from_level: u32, id: BlockId) -> Vec<Bytes> {
fn prove_account(&self, key1: H256, id: BlockId) -> Option<(Vec<Bytes>, ::types::basic_account::BasicAccount)> {
self.state_at(id)
.and_then(move |state| state.prove_account(key1, from_level).ok())
.unwrap_or_else(Vec::new)
}
fn code_by_hash(&self, account_key: H256, id: BlockId) -> Bytes {
self.state_at(id)
.and_then(move |state| state.code_by_address_hash(account_key).ok())
.and_then(|x| x)
.unwrap_or_else(Vec::new)
.and_then(move |state| state.prove_account(key1).ok())
}
fn prove_transaction(&self, transaction: SignedTransaction, id: BlockId) -> Option<Vec<DBValue>> {

13
ethcore/src/client/test_client.rs
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@@ -38,6 +38,7 @@ use error::{ImportResult, Error as EthcoreError};
use evm::{Factory as EvmFactory, VMType, Schedule};
use miner::{Miner, MinerService, TransactionImportResult};
use spec::Spec;
use types::basic_account::BasicAccount;
use types::mode::Mode;
use types::pruning_info::PruningInfo;
@@ -754,16 +755,12 @@ impl BlockChainClient for TestBlockChainClient {
}
impl ProvingBlockChainClient for TestBlockChainClient {
fn prove_storage(&self, _: H256, _: H256, _: u32, _: BlockId) -> Vec<Bytes> {
Vec::new()
fn prove_storage(&self, _: H256, _: H256, _: BlockId) -> Option<(Vec<Bytes>, H256)> {
None
}
fn prove_account(&self, _: H256, _: u32, _: BlockId) -> Vec<Bytes> {
Vec::new()
}
fn code_by_hash(&self, _: H256, _: BlockId) -> Bytes {
Vec::new()
fn prove_account(&self, _: H256, _: BlockId) -> Option<(Vec<Bytes>, BasicAccount)> {
None
}
fn prove_transaction(&self, _: SignedTransaction, _: BlockId) -> Option<Vec<DBValue>> {

12
ethcore/src/client/traits.rs
View File

@@ -34,6 +34,7 @@ use env_info::LastHashes;
use block_import_error::BlockImportError;
use ipc::IpcConfig;
use types::ids::*;
use types::basic_account::BasicAccount;
use types::trace_filter::Filter as TraceFilter;
use types::call_analytics::CallAnalytics;
use types::blockchain_info::BlockChainInfo;
@@ -309,19 +310,12 @@ pub trait ProvingBlockChainClient: BlockChainClient {
///
/// Both provided keys assume a secure trie.
/// Returns a vector of raw trie nodes (in order from the root) proving the storage query.
/// Nodes after `from_level` may be omitted.
/// An empty vector indicates unservable query.
fn prove_storage(&self, key1: H256, key2: H256, from_level: u32, id: BlockId) -> Vec<Bytes>;
fn prove_storage(&self, key1: H256, key2: H256, id: BlockId) -> Option<(Vec<Bytes>, H256)>;
/// Prove account existence at a specific block id.
/// The key is the keccak hash of the account's address.
/// Returns a vector of raw trie nodes (in order from the root) proving the query.
/// Nodes after `from_level` may be omitted.
/// An empty vector indicates unservable query.
fn prove_account(&self, key1: H256, from_level: u32, id: BlockId) -> Vec<Bytes>;
/// Get code by address hash.
fn code_by_hash(&self, account_key: H256, id: BlockId) -> Bytes;
fn prove_account(&self, key1: H256, id: BlockId) -> Option<(Vec<Bytes>, BasicAccount)>;
/// Prove execution of a transaction at the given block.
fn prove_transaction(&self, transaction: SignedTransaction, id: BlockId) -> Option<Vec<DBValue>>;