Module java4ever.binding
Package tech.deplant.java4ever.binding

Class Abi

java.lang.Object
tech.deplant.java4ever.binding.Abi
public final class Abi extends Object
Abi Contains methods of "abi" module of EVER-SDK API Provides message encoding and decoding according to the ABI specification.

  • Constructor Details

    • Abi

      public Abi()

  • Method Details

    • encodeMessageBody

      public static Abi.ResultOfEncodeMessageBody encodeMessageBody(Context ctx, Abi.ABI abi, Abi.CallSet callSet, Boolean isInternal, Abi.Signer signer, Integer processingTryIndex, String address) throws EverSdkException
      Encodes message body according to ABI function call.
      Parameters:
      abi - Contract ABI.
      callSet - Must be specified in non deploy message. In case of deploy message contains parameters of constructor. Function call parameters.
      isInternal - True if internal message body must be encoded.
      signer - Signing parameters.
      processingTryIndex - Used in message processing with retries. Encoder uses the provided try index to calculate message expiration time. Expiration timeouts will grow with every retry. Default value is 0. Processing try index.
      address - Since ABI version 2.3 destination address of external inbound message is used in message body signature calculation. Should be provided when signed external inbound message body is created. Otherwise can be omitted. Destination address of the message
      Throws:
      EverSdkException

    • attachSignatureToMessageBody

      public static Abi.ResultOfAttachSignatureToMessageBody attachSignatureToMessageBody(Context ctx, Abi.ABI abi, String publicKey, String message, String signature) throws EverSdkException
      Parameters:
      abi - Contract ABI
      publicKey - Must be encoded with `hex`. Public key.
      message - Must be encoded with `base64`. Unsigned message body BOC.
      signature - Must be encoded with `hex`. Signature.
      Throws:
      EverSdkException

    • encodeMessage

      public static Abi.ResultOfEncodeMessage encodeMessage(Context ctx, Abi.ABI abi, String address, Abi.DeploySet deploySet, Abi.CallSet callSet, Abi.Signer signer, Integer processingTryIndex) throws EverSdkException
      Allows to encode deploy and function call messages, both signed and unsigned. Use cases include messages of any possible type: - deploy with initial function call (i.e. `constructor` or any other function that is used for some kind of initialization); - deploy without initial function call; - signed/unsigned + data for signing. `Signer` defines how the message should or shouldn't be signed: `Signer::None` creates an unsigned message. This may be needed in case of some public methods, that do not require authorization by pubkey. `Signer::External` takes public key and returns `data_to_sign` for later signing. Use `attach_signature` method with the result signature to get the signed message. `Signer::Keys` creates a signed message with provided key pair. [SOON] `Signer::SigningBox` Allows using a special interface to implement signing without private key disclosure to SDK. For instance, in case of using a cold wallet or HSM, when application calls some API to sign data. There is an optional public key can be provided in deploy set in order to substitute one in TVM file. Public key resolving priority: 1. Public key from deploy set. 2. Public key, specified in TVM file. 3. Public key, provided by signer. Encodes an ABI-compatible message
      Parameters:
      abi - Contract ABI.
      address - Must be specified in case of non-deploy message. Target address the message will be sent to.
      deploySet - Must be specified in case of deploy message. Deploy parameters.
      callSet - Must be specified in case of non-deploy message. In case of deploy message it is optional and contains parameters of the functions that will to be called upon deploy transaction. Function call parameters.
      signer - Signing parameters.
      processingTryIndex - Used in message processing with retries (if contract's ABI includes "expire" header). Encoder uses the provided try index to calculate message expiration time. The 1st message expiration time is specified in Client config. Expiration timeouts will grow with every retry. Retry grow factor is set in Client config: invalid input: '<'.....add config parameter with default value here> Default value is 0. Processing try index.
      Throws:
      EverSdkException

    • encodeInternalMessage

      public static Abi.ResultOfEncodeInternalMessage encodeInternalMessage(Context ctx, Abi.ABI abi, String address, String srcAddress, Abi.DeploySet deploySet, Abi.CallSet callSet, String value, Boolean bounce, Boolean enableIhr) throws EverSdkException
      Allows to encode deploy and function call messages. Use cases include messages of any possible type: - deploy with initial function call (i.e. `constructor` or any other function that is used for some kind of initialization); - deploy without initial function call; - simple function call There is an optional public key can be provided in deploy set in order to substitute one in TVM file. Public key resolving priority: 1. Public key from deploy set. 2. Public key, specified in TVM file. Encodes an internal ABI-compatible message
      Parameters:
      abi - Can be None if both deploy_set and call_set are None. Contract ABI.
      address - Must be specified in case of non-deploy message. Target address the message will be sent to.
      srcAddress - Source address of the message.
      deploySet - Must be specified in case of deploy message. Deploy parameters.
      callSet - Must be specified in case of non-deploy message. In case of deploy message it is optional and contains parameters of the functions that will to be called upon deploy transaction. Function call parameters.
      value - Value in nanotokens to be sent with message.
      bounce - Default is true. Flag of bounceable message.
      enableIhr - Default is false. Enable Instant Hypercube Routing for the message.
      Throws:
      EverSdkException

    • attachSignature

      public static Abi.ResultOfAttachSignature attachSignature(Context ctx, Abi.ABI abi, String publicKey, String message, String signature) throws EverSdkException
      Combines `hex`-encoded `signature` with `base64`-encoded `unsigned_message`. Returns signed message encoded in `base64`.
      Parameters:
      abi - Contract ABI
      publicKey - Public key encoded in `hex`.
      message - Unsigned message BOC encoded in `base64`.
      signature - Signature encoded in `hex`.
      Throws:
      EverSdkException

    • decodeMessage

      public static Abi.DecodedMessageBody decodeMessage(Context ctx, Abi.ABI abi, String message, Boolean allowPartial, String functionName, Abi.DataLayout dataLayout) throws EverSdkException
      Decodes message body using provided message BOC and ABI.
      Parameters:
      abi - contract ABI
      message - Message BOC
      allowPartial - Flag allowing partial BOC decoding when ABI doesn't describe the full body BOC. Controls decoder behaviour when after decoding all described in ABI params there are some data left in BOC: `true` - return decoded values `false` - return error of incomplete BOC deserialization (default)
      functionName - Function name or function id if is known in advance
      Throws:
      EverSdkException

    • decodeMessageBody

      public static Abi.DecodedMessageBody decodeMessageBody(Context ctx, Abi.ABI abi, String body, Boolean isInternal, Boolean allowPartial, String functionName, Abi.DataLayout dataLayout) throws EverSdkException
      Decodes message body using provided body BOC and ABI.
      Parameters:
      abi - Contract ABI used to decode.
      body - Message body BOC encoded in `base64`.
      isInternal - True if the body belongs to the internal message.
      allowPartial - Flag allowing partial BOC decoding when ABI doesn't describe the full body BOC. Controls decoder behaviour when after decoding all described in ABI params there are some data left in BOC: `true` - return decoded values `false` - return error of incomplete BOC deserialization (default)
      functionName - Function name or function id if is known in advance
      Throws:
      EverSdkException

    • encodeAccount

      public static Abi.ResultOfEncodeAccount encodeAccount(Context ctx, Abi.StateInitSource stateInit, Long balance, Long lastTransLt, Integer lastPaid, Boc.BocCacheType bocCache) throws EverSdkException
      Creates account state provided with one of these sets of data : 1. BOC of code, BOC of data, BOC of library 2. TVC (string in `base64`), keys, init params Creates account state BOC
      Parameters:
      stateInit - Source of the account state init.
      balance - Initial balance.
      lastTransLt - Initial value for the `last_trans_lt`.
      lastPaid - Initial value for the `last_paid`.
      bocCache - The BOC itself returned if no cache type provided Cache type to put the result.
      Throws:
      EverSdkException

    • decodeAccountData

      public static Abi.ResultOfDecodeAccountData decodeAccountData(Context ctx, Abi.ABI abi, String data, Boolean allowPartial) throws EverSdkException
      Note: this feature requires ABI 2.1 or higher. Decodes account data using provided data BOC and ABI.
      Parameters:
      abi - Contract ABI
      data - Data BOC or BOC handle
      allowPartial - Flag allowing partial BOC decoding when ABI doesn't describe the full body BOC. Controls decoder behaviour when after decoding all described in ABI params there are some data left in BOC: `true` - return decoded values `false` - return error of incomplete BOC deserialization (default)
      Throws:
      EverSdkException

    • updateInitialData

      public static Abi.ResultOfUpdateInitialData updateInitialData(Context ctx, Abi.ABI abi, String data, Map<String,Object> initialData, String initialPubkey, Boc.BocCacheType bocCache) throws EverSdkException
      Updates initial account data with initial values for the contract's static variables and owner's public key. This operation is applicable only for initial account data (before deploy). If the contract is already deployed, its data doesn't contain this data section any more.
      Parameters:
      abi - Contract ABI
      data - Data BOC or BOC handle
      initialData - `abi` parameter should be provided to set initial data List of initial values for contract's static variables.
      initialPubkey - Initial account owner's public key to set into account data
      bocCache - Cache type to put the result. The BOC itself returned if no cache type provided.
      Throws:
      EverSdkException

    • encodeInitialData

      public static Abi.ResultOfEncodeInitialData encodeInitialData(Context ctx, Abi.ABI abi, Map<String,Object> initialData, String initialPubkey, Boc.BocCacheType bocCache) throws EverSdkException
      This function is analogue of `tvm.buildDataInit` function in Solidity. Encodes initial account data with initial values for the contract's static variables and owner's public key into a data BOC that can be passed to `encode_tvc` function afterwards.
      Parameters:
      abi - Contract ABI
      initialData - `abi` parameter should be provided to set initial data List of initial values for contract's static variables.
      initialPubkey - Initial account owner's public key to set into account data
      bocCache - Cache type to put the result. The BOC itself returned if no cache type provided.
      Throws:
      EverSdkException

    • decodeInitialData

      public static Abi.ResultOfDecodeInitialData decodeInitialData(Context ctx, Abi.ABI abi, String data, Boolean allowPartial) throws EverSdkException
      Decodes initial values of a contract's static variables and owner's public key from account initial data This operation is applicable only for initial account data (before deploy). If the contract is already deployed, its data doesn't contain this data section any more.
      Parameters:
      abi - Initial data is decoded if this parameter is provided Contract ABI.
      data - Data BOC or BOC handle
      allowPartial - Flag allowing partial BOC decoding when ABI doesn't describe the full body BOC. Controls decoder behaviour when after decoding all described in ABI params there are some data left in BOC: `true` - return decoded values `false` - return error of incomplete BOC deserialization (default)
      Throws:
      EverSdkException

    • decodeBoc

      public static Abi.ResultOfDecodeBoc decodeBoc(Context ctx, Abi.AbiParam[] params, String boc, Boolean allowPartial) throws EverSdkException
      Solidity functions use ABI types for [builder encoding](https://github.com/tonlabs/TON-Solidity-Compiler/blob/master/API.md#tvmbuilderstore). The simplest way to decode such a BOC is to use ABI decoding. ABI has it own rules for fields layout in cells so manually encoded BOC can not be described in terms of ABI rules. To solve this problem we introduce a new ABI type `Ref()` which allows to store `ParamType` ABI parameter in cell reference and, thus, decode manually encoded BOCs. This type is available only in `decode_boc` function and will not be available in ABI messages encoding until it is included into some ABI revision. Such BOC descriptions covers most users needs. If someone wants to decode some BOC which can not be described by these rules (i.e. BOC with TLB containing constructors of flags defining some parsing conditions) then they can decode the fields up to fork condition, check the parsed data manually, expand the parsing schema and then decode the whole BOC with the full schema. Decodes BOC into JSON as a set of provided parameters.
      Parameters:
      params - Parameters to decode from BOC
      boc - Data BOC or BOC handle
      Throws:
      EverSdkException

    • encodeBoc

      public static Abi.ResultOfAbiEncodeBoc encodeBoc(Context ctx, Abi.AbiParam[] params, Map<String,Object> data, Boc.BocCacheType bocCache) throws EverSdkException
      Encodes given parameters in JSON into a BOC using param types from ABI.
      Parameters:
      params - Parameters to encode into BOC
      data - Parameters and values as a JSON structure
      bocCache - The BOC itself returned if no cache type provided Cache type to put the result.
      Throws:
      EverSdkException

    • calcFunctionId

      public static Abi.ResultOfCalcFunctionId calcFunctionId(Context ctx, Abi.ABI abi, String functionName, Boolean output) throws EverSdkException
      Calculates contract function ID by contract ABI
      Parameters:
      abi - Contract ABI.
      functionName - Contract function name
      output - If set to `true` output function ID will be returned which is used in contract response. Default is `false`
      Throws:
      EverSdkException

    • getSignatureData

      public static Abi.ResultOfGetSignatureData getSignatureData(Context ctx, Abi.ABI abi, String message) throws EverSdkException
      Extracts signature from message body and calculates hash to verify the signature
      Parameters:
      abi - Contract ABI used to decode.
      message - Message BOC encoded in `base64`.
      Throws:
      EverSdkException