Examples with SharedRLPList org.aion.rlp.SharedRLPList used on opensource projects

Example 6 with SharedRLPList

use of org.aion.rlp.SharedRLPList in project aion by aionnetwork.

the class AvmContractDetails method decodeAtRoot.

/**
 * Decodes an AvmContractDetails object from the RLP encoding and returns a snapshot to the
 * specific point in the blockchain history given by the consensus root hash.
 *
 * @param input the stored encoding representing the contract details
 * @param storageSource the data source for the contract storage data
 * @param objectGraphSource the data source for the object graph
 * @param consensusRoot the consensus root linking to specific external storage and object graph
 *     data at the point of interest in the blockchain history
 * @return a snapshot of the contract details with the information it contained at the specified
 *     point in the blockchain history
 */
public static AvmContractDetails decodeAtRoot(RLPContractDetails input, ByteArrayKeyValueStore storageSource, ByteArrayKeyValueStore objectGraphSource, byte[] consensusRoot) {
    Objects.requireNonNull(input, "The contract data for the snapshot cannot be null.");
    Objects.requireNonNull(consensusRoot, "The consensus root for the snapshot cannot be null.");
    // additional null check are performed by the constructor
    AvmContractDetails details = new AvmContractDetails(input.address, storageSource, objectGraphSource);
    RLPElement code = input.code;
    if (code instanceof SharedRLPList) {
        for (RLPElement e : ((SharedRLPList) code)) {
            if (e.isList()) {
                details.setCode(SharedRLPList.getRLPDataCopy((SharedRLPList) e));
            } else {
                details.setCode(e.getRLPData());
            }
        }
    } else if (code instanceof RLPList) {
        for (RLPElement e : ((RLPList) code)) {
            details.setCode(e.getRLPData());
        }
    } else {
        details.setCode(code.getRLPData());
    }
    // The root is the concatenated storage hash.
    // It points to the external storage hash and the object graph hash.
    RLPElement storage = input.storageTrie;
    // Instantiates the storage interpreting the storage root according to the VM specification.
    byte[] storageRootHash;
    Optional<byte[]> concatenatedData = details.objectGraphSource.get(consensusRoot);
    if (concatenatedData.isPresent()) {
        SharedRLPList data = RLP.decode2SharedList(concatenatedData.get());
        if (!(data.get(0).isList())) {
            throw new IllegalArgumentException("Invalid concatenated storage for AVM.");
        }
        SharedRLPList pair = (SharedRLPList) data.get(0);
        if (pair.size() != 2) {
            throw new IllegalArgumentException("Invalid concatenated storage for AVM.");
        }
        storageRootHash = pair.get(0).getRLPData();
        details.objectGraphHash = pair.get(1).getRLPData();
    } else {
        // As a result the concatenated storage hash cannot be missing from the database.
        throw new IllegalArgumentException("Invalid concatenated storage for AVM.");
    }
    // load/deserialize storage trie
    if (input.isExternalStorage) {
        // ensure transition from old encoding
        details.storageTrie = new SecureTrie(details.externalStorageSource, storageRootHash);
    } else {
        details.storageTrie = new SecureTrie(null);
        details.storageTrie.deserialize((SharedRLPList) storage);
        // switch from in-memory to external storage
        details.storageTrie.getCache().setDB(details.externalStorageSource);
        details.storageTrie.sync();
    }
    if (Arrays.equals(storageRootHash, ConstantUtil.EMPTY_TRIE_HASH)) {
        details.storageTrie = new SecureTrie(details.storageTrie.getCache(), "".getBytes());
    }
    return details;
}

Example 7 with SharedRLPList

use of org.aion.rlp.SharedRLPList in project aion by aionnetwork.

the class ContractInformation method deserializeInformation.

private static Information deserializeInformation(SharedRLPList list) {
    // validity check
    if (list.size() != 2)
        return null;
    Information info = new Information();
    // validity check blocks
    RLPElement code = list.get(0);
    if (!(code.isList()))
        return null;
    for (RLPElement e : ((SharedRLPList) code)) {
        // validity check pair
        if (!(e.isList()))
            return null;
        SharedRLPList pair = (SharedRLPList) e;
        // validity check hash
        if (pair.size() != 2) {
            return null;
        }
        byte[] key = pair.get(0).getRLPData();
        if (key.length != HASH_SIZE) {
            return null;
        }
        // validity check completeness status
        byte[] flag = pair.get(1).getRLPData();
        if (flag.length > 1 || (flag.length == 1 && flag[0] != 1))
            return null;
        ByteArrayWrapper keyWrap = ByteArrayWrapper.wrap(key);
        // zero (i.e. false) decodes to empty byte array
        info.blocks.put(keyWrap, flag.length == 1);
    }
    // validity check VM
    byte[] array = list.get(1).getRLPData();
    if (array.length != 1)
        return null;
    info.vm = InternalVmType.getInstance(array[0]);
    // return correct instance
    return info;
}

Example 8 with SharedRLPList

use of org.aion.rlp.SharedRLPList in project aion by aionnetwork.

the class FvmContractDetails method decodeAtRoot.

/**
 * Decodes an FvmContractDetails object from the RLP encoding and returns a snapshot to the
 * specific point in the blockchain history given by the consensus root hash.
 *
 * @param input the stored encoding representing the contract details
 * @param storageSource the data source for the contract storage data
 * @param consensusRoot the consensus root linking to specific external storage and object graph
 *     data at the point of interest in the blockchain history
 * @return a snapshot of the contract details with the information it contained at the specified
 *     point in the blockchain history
 */
public static FvmContractDetails decodeAtRoot(RLPContractDetails input, ByteArrayKeyValueStore storageSource, byte[] consensusRoot) {
    Objects.requireNonNull(input, "The contract data for the snapshot cannot be null.");
    Objects.requireNonNull(consensusRoot, "The consensus root for the snapshot cannot be null.");
    // additional null check are performed by the constructor
    FvmContractDetails details = new FvmContractDetails(input.address, storageSource);
    RLPElement code = input.code;
    if (code instanceof SharedRLPList) {
        for (RLPElement e : ((SharedRLPList) code)) {
            if (e.isList()) {
                details.setCode(SharedRLPList.getRLPDataCopy((SharedRLPList) e));
            } else {
                details.setCode(e.getRLPData());
            }
        }
    } else if (code instanceof RLPList) {
        for (RLPElement e : ((RLPList) code)) {
            details.setCode(e.getRLPData());
        }
    } else {
        details.setCode(code.getRLPData());
    }
    // NOTE: under normal circumstances the VM type is set by the details data store
    // Do not forget to set the vmType value externally during tests!!!
    RLPElement storage = input.storageTrie;
    // load/deserialize storage trie
    if (input.isExternalStorage) {
        // ensure transition from old encoding
        details.storageTrie = new SecureTrie(details.externalStorageSource, consensusRoot);
    } else {
        details.storageTrie = new SecureTrie(null);
        details.storageTrie.deserialize((SharedRLPList) storage);
        // switch from in-memory to external storage
        details.storageTrie.getCache().setDB(details.externalStorageSource);
        details.storageTrie.sync();
    }
    if (Arrays.equals(consensusRoot, ConstantUtil.EMPTY_TRIE_HASH)) {
        details.storageTrie = new SecureTrie(details.storageTrie.getCache(), "".getBytes());
    }
    return details;
}

Example 9 with SharedRLPList

use of org.aion.rlp.SharedRLPList in project aion by aionnetwork.

the class CipherParams method parse.

public static CipherParams parse(byte[] bytes) throws UnsupportedEncodingException {
    RLPElement element = RLP.decode2SharedList(bytes).get(0);
    if (!element.isList()) {
        throw new IllegalArgumentException("The keystore decoded rlp element is not a list");
    }
    SharedRLPList list = (SharedRLPList) element;
    CipherParams cp = new CipherParams();
    cp.setIv(new String(list.get(0).getRLPData(), "US-ASCII"));
    return cp;
}

Example 10 with SharedRLPList

use of org.aion.rlp.SharedRLPList in project aion by aionnetwork.

the class AionRepositoryImpl method loadImportableState.

@VisibleForTesting
public void loadImportableState(byte[] fullState, DatabaseType dbType) {
    SharedRLPList data = RLP.decode2SharedList(fullState);
    RLPElement elements = data.get(0);
    if (elements.isList()) {
        for (RLPElement element : (SharedRLPList) elements) {
            if (element.isList()) {
                byte[] data0;
                if (data.get(0).isList()) {
                    data0 = SharedRLPList.getRLPDataCopy((SharedRLPList) data.get(0));
                } else {
                    data0 = data.get(0).getRLPData();
                }
                byte[] data1;
                if (data.get(1).isList()) {
                    data1 = SharedRLPList.getRLPDataCopy((SharedRLPList) data.get(1));
                } else {
                    data1 = data.get(1).getRLPData();
                }
                importTrieNode(data0, data1, dbType);
            } else {
                throw new IllegalStateException();
            }
        }
    } else {
        throw new IllegalStateException();
    }
}