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#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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import base64
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import urllib.parse
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def urlEncode(content: str) -> str: # url encode (RFC3986)
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return urllib.parse.quote(content, encoding = 'utf-8')
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def urlDecode(content: str) -> str: # url decode (RFC3986)
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return urllib.parse.unquote(content, encoding = 'utf-8')
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def b64Encode(content: str, urlSafe: bool = True, padding: bool = False) -> str: # base64 encode
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content = base64.b64encode(content.encode(encoding = 'utf-8')).decode(encoding = 'utf-8')
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if urlSafe:
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content = content.replace('+', '-') # `+` => `-`
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content = content.replace('/', '_') # `/` => `_`
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if padding:
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return content
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return content.replace('=', '') # remove `=` padding
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def b64Decode(content: str) -> str: # base64 decode
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try:
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content = content.replace('-', '+').replace('_', '/') # compatible urlSafe
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if len(content) % 4 in range(2, 4): # remainder -> 2 or 3
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content = content.ljust((len(content) // 4 + 1) * 4, '=') # increase to 4n
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return base64.b64decode(content).decode(encoding = 'utf-8')
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except:
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raise RuntimeError('Invalid base64 encode')
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