@polkadot/util-crypto#hdValidatePath TypeScript Examples

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Example #1

Source File: Create.tsx From crust-apps with Apache License 2.0

6 votes

function deriveValidate (seed: string, seedType: SeedType, derivePath: string, pairType: PairType): DeriveValidationOutput {
  try {
    const { password, path } = keyExtractSuri(pairType === 'ethereum' ? `${seed}/${derivePath}` : `${seed}${derivePath}`);
    let result: DeriveValidationOutput = {};

    // show a warning in case the password contains an unintended / character
    if (password?.includes('/')) {
      result = { warning: 'WARNING_SLASH_PASSWORD' };
    }

    // we don't allow soft for ed25519
    if (pairType === 'ed25519' && path.some(({ isSoft }): boolean => isSoft)) {
      return { ...result, error: 'SOFT_NOT_ALLOWED' };
    }

    // we don't allow password for hex seed
    if (seedType === 'raw' && password) {
      return { ...result, error: 'PASSWORD_IGNORED' };
    }

    if (pairType === 'ethereum' && !hdValidatePath(derivePath)) {
      return { ...result, error: 'INVALID_DERIVATION_PATH' };
    }

    return result;
  } catch (error) {
    return { error: (error as Error).message };
  }
}