isValidBase64 - Maxim Docs

Input

input: The original input text or data
output: The string to validate as base64
expectedOutput: The expected output to compare against.

Any of the input variables (input, output, expectedOutput) can be marked as optional.
The returned value from the validate function can be a boolean, string, or a number.

Output

Result: Boolean (true or false) | string | number

Interpretation

Assuming this evaluator returns a boolean

true: The string is valid base64
false: The string is not valid base64

This evaluator requires a function named validate.

Example

import base64

def validate(input, output, expectedOutput):
    try:
        base64.b64decode(str(output), validate=True)
        return True
    except Exception:
        return False

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