Cherrypy文件上传非ASCII文件名乱码问题解决

Cherrypy 版本： 18.0.1

由于某些特殊原因(可能是与标准兼容的问题)，Cherrypy对上传文件的原文件名使用 ISO-8859-1 编码方式解码，导致非 ASCII 的文件名显示为乱码。

解决的方式也很简单，只需要对文件名使用 ISO-8859-1 编码然后在使用 UTF-8 重新解码即可。

以下是一个完整的例子：

 from os import makedirs
 from os.path import dirname, join as pathjoin, exists as pathexists
 from cherrypy import expose, quickstart, request, config

 HERE = dirname(__file__)
 UPLOAD_FOLDER = pathjoin(HERE, 'uploads')

 def repaire_filename(filename):
     return filename.encode('ISO-8859-1').decode('utf-8', 'replace')

 def save_uploadfiles(files, folder=UPLOAD_FOLDER):
     if not pathexists(folder):
         makedirs(folder)
     if not isinstance(files, list):
         files = [files]
     for upload in files:
         if not upload.filename:
             continue
         basename = repaire_filename(upload.filename)
         filename = pathjoin(folder, basename)
         with upload.file as upload_file, open(filename, 'wb') as to_save:
             while True:
                 buf = upload_file.read(8192)
                 if not buf:
                     break
                 to_save.write(buf)

 @expose
 def index(upload_files=None):
     if request.method == 'POST':
         save_uploadfiles(upload_files)
     return '''
 <form method="POST" enctype="multipart/form-data">
 <div><input name="upload_files" type="file" /></div>
 <div><input name="upload_files" type="file" /></div>
 <div><input name="upload_files" type="file" /></div>
 <input type="submit" />
 </form>
 '''

 if __name__ == '__main__':
     quickstart(index)