mirror of
https://github.com/zhayujie/chatgpt-on-wechat.git
synced 2026-02-02 18:01:00 +08:00
57 lines
1.6 KiB
Python
57 lines
1.6 KiB
Python
import io
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import os
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from urllib.parse import urlparse
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from PIL import Image
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def fsize(file):
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if isinstance(file, io.BytesIO):
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return file.getbuffer().nbytes
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elif isinstance(file, str):
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return os.path.getsize(file)
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elif hasattr(file, "seek") and hasattr(file, "tell"):
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pos = file.tell()
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file.seek(0, os.SEEK_END)
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size = file.tell()
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file.seek(pos)
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return size
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else:
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raise TypeError("Unsupported type")
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def compress_imgfile(file, max_size):
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if fsize(file) <= max_size:
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return file
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file.seek(0)
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img = Image.open(file)
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rgb_image = img.convert("RGB")
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quality = 95
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while True:
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out_buf = io.BytesIO()
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rgb_image.save(out_buf, "JPEG", quality=quality)
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if fsize(out_buf) <= max_size:
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return out_buf
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quality -= 5
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def split_string_by_utf8_length(string, max_length, max_split=0):
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encoded = string.encode("utf-8")
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start, end = 0, 0
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result = []
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while end < len(encoded):
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if max_split > 0 and len(result) >= max_split:
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result.append(encoded[start:].decode("utf-8"))
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break
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end = min(start + max_length, len(encoded))
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# 如果当前字节不是 UTF-8 编码的开始字节，则向前查找直到找到开始字节为止
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while end < len(encoded) and (encoded[end] & 0b11000000) == 0b10000000:
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end -= 1
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result.append(encoded[start:end].decode("utf-8"))
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start = end
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return result
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def get_path_suffix(path):
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path = urlparse(path).path
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return os.path.splitext(path)[-1].lstrip('.')
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