The BaseChainAdapter class is an abstract base class for implementing chain-specific protocol meta operations. It defines the required interface for encoding, decoding, injecting, and validating protocol meta in blockchain transactions.

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Type Parameter

  • T: The chain-specific transaction type handled by the adapter.

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Abstract Methods

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encodeMeta

abstract encodeMeta(meta: ProtocolMetaV1): any
Encodes protocol meta for this chain.

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decodeMeta

abstract decodeMeta(tx: T): ProtocolMetaV1 | null
Decodes protocol meta from a chain-specific transaction.

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injectMeta

abstract injectMeta(serializedTx: string, meta: ProtocolMetaV1): string
Injects protocol meta into a serialized transaction string.

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validate

abstract validate(tx: T, authorities: string[], expectedPrefix?: string): boolean
Validates a transaction with protocol meta and authority list.

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hasIssuerSignature

abstract hasIssuerSignature(tx: T, issuer: string): boolean
Checks if the issuer has signed the transaction.

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detectTampering

detectTampering(tx: T, authorities: string[], expectedPrefix: string = 'DEFAULT'): boolean
Detects tampered transactions by cross-checking metadata and signatures. (Default implementation provided.)

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validateTransactionIntegrity

protected abstract validateTransactionIntegrity(tx: T, meta: ProtocolMetaV1): boolean
Chain-specific transaction integrity validation. Override for additional logic.

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getCodeSignatureMessage

getCodeSignatureMessage(code: string, timestamp: number, prefix: string = PROTOCOL_CODE_PREFIX): string
Returns the code signature message for signing and verification.

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verifyCodeSignature

abstract verifyCodeSignature(actionCode: ActionCode): boolean
Verifies the code signature for the action code. Chain-specific implementation required.

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signWithProtocolKey

abstract signWithProtocolKey(actionCode: ActionCode, key: any): Promise<ActionCode>
Signs the transaction with the protocol key using a callback approach. Chain-specific implementation required.

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verifyFinalizedTransaction

abstract verifyFinalizedTransaction(tx: any, actionCode: ActionCode): boolean
Verifies the finalized transaction. Chain-specific implementation required.

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validateSignedMessage

abstract validateSignedMessage(message: string, signedMessage: string, pubkey: string): boolean
Validates a signed message for sign-only mode. Chain-specific implementation required.