1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
use std::sync::Arc;
use std::collections::HashMap;
use std::marker::PhantomData;
use fp_consensus::{ensure_log, FindLogError};
use fp_rpc::EthereumRuntimeRPCApi;
use sc_client_api::{BlockOf, backend::AuxStore};
use sp_blockchain::{HeaderBackend, ProvideCache, well_known_cache_keys::Id as CacheKeyId};
use sp_block_builder::BlockBuilder as BlockBuilderApi;
use sp_runtime::traits::{Block as BlockT, Header as HeaderT};
use sp_api::ProvideRuntimeApi;
use sp_consensus::{
BlockImportParams, Error as ConsensusError, BlockImport,
BlockCheckParams, ImportResult,
};
use sc_client_api;
#[derive(derive_more::Display, Debug)]
pub enum Error {
#[display(fmt = "Multiple runtime Ethereum blocks, rejecting!")]
MultipleRuntimeLogs,
#[display(fmt = "Runtime Ethereum block not found, rejecting!")]
NoRuntimeLog,
#[display(fmt = "Cannot access the runtime at genesis, rejecting!")]
RuntimeApiCallFailed,
}
impl From<Error> for String {
fn from(error: Error) -> String {
error.to_string()
}
}
impl From<FindLogError> for Error {
fn from(error: FindLogError) -> Error {
match error {
FindLogError::NotFound => Error::NoRuntimeLog,
FindLogError::MultipleLogs => Error::MultipleRuntimeLogs,
}
}
}
impl From<Error> for ConsensusError {
fn from(error: Error) -> ConsensusError {
ConsensusError::ClientImport(error.to_string())
}
}
pub struct FrontierBlockImport<B: BlockT, I, C> {
inner: I,
client: Arc<C>,
backend: Arc<fc_db::Backend<B>>,
_marker: PhantomData<B>,
}
impl<Block: BlockT, I: Clone + BlockImport<Block>, C> Clone for FrontierBlockImport<Block, I, C> {
fn clone(&self) -> Self {
FrontierBlockImport {
inner: self.inner.clone(),
client: self.client.clone(),
backend: self.backend.clone(),
_marker: PhantomData,
}
}
}
impl<B, I, C> FrontierBlockImport<B, I, C> where
B: BlockT,
I: BlockImport<B, Transaction = sp_api::TransactionFor<C, B>> + Send + Sync,
I::Error: Into<ConsensusError>,
C: ProvideRuntimeApi<B> + Send + Sync + HeaderBackend<B> + AuxStore + ProvideCache<B> + BlockOf,
C::Api: EthereumRuntimeRPCApi<B>,
C::Api: BlockBuilderApi<B>,
{
pub fn new(
inner: I,
client: Arc<C>,
backend: Arc<fc_db::Backend::<B>>,
) -> Self {
Self {
inner,
client,
backend,
_marker: PhantomData,
}
}
}
impl<B, I, C> BlockImport<B> for FrontierBlockImport<B, I, C> where
B: BlockT,
I: BlockImport<B, Transaction = sp_api::TransactionFor<C, B>> + Send + Sync,
I::Error: Into<ConsensusError>,
C: ProvideRuntimeApi<B> + Send + Sync + HeaderBackend<B> + AuxStore + ProvideCache<B> + BlockOf,
C::Api: EthereumRuntimeRPCApi<B>,
C::Api: BlockBuilderApi<B>,
{
type Error = ConsensusError;
type Transaction = sp_api::TransactionFor<C, B>;
fn check_block(
&mut self,
block: BlockCheckParams<B>,
) -> Result<ImportResult, Self::Error> {
self.inner.check_block(block).map_err(Into::into)
}
fn import_block(
&mut self,
block: BlockImportParams<B, Self::Transaction>,
new_cache: HashMap<CacheKeyId, Vec<u8>>,
) -> Result<ImportResult, Self::Error> {
ensure_log(&block.header.digest()).map_err(|e| Error::from(e))?;
self.inner.import_block(block, new_cache).map_err(Into::into)
}
}