33 lines
1021 B
Python
33 lines
1021 B
Python
# src/app_helpers.py
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import os
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import base64
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def read_if_exists(path: str) -> str:
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"""Read file if it exists, return empty string otherwise."""
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try:
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with open(path, "r", encoding="utf-8") as f:
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return f.read().strip()
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except Exception:
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return ""
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def file_to_data_url(path: str, mime: str) -> str:
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"""Convert file to data URL."""
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with open(path, "rb") as f:
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b64 = base64.b64encode(f.read()).decode("ascii")
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return f"data:{mime};base64,{b64}"
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def abs_join(base_dir: str, rel: str) -> str:
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"""Join paths and return absolute path."""
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return os.path.abspath(os.path.join(base_dir, rel))
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def inside_base_dir(base_dir: str, path: str) -> bool:
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"""Check if path is inside base directory."""
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if not isinstance(base_dir, str) or not isinstance(path, str):
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return False
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base = os.path.realpath(base_dir)
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p = os.path.realpath(path)
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try:
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return os.path.commonpath([base, p]) == base
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except Exception:
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return False
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