如何在python瓶中使用希伯来语名称提供静态文件？

问题描述：

我收到客户端的请求，要求从服务器下载一些文件。
文件名使用希伯来语。

I receive a request from the client to download some file from the server. The filename is in Hebrew.

@bottle.get("/download/<folder_name>/<file_name>")
def download(folder_name, file_name):

    file_name =  file_name.decode('utf-8')
    folder_name =  folder_name.decode('utf-8')

    if os.path.exists(os.path.join(folder_name, file_name)):
        return bottle.static_file(file_name, root=folder_name, download=True)

最后一行失败：

return bottle.static_file(file_name, root=folder_name, download=True)

我遇到异常：

UnicodeEncodeError: 'ascii' codec can't encode characters in position 22-25: ordinal not in range(128)

我不知道我在这里做错了什么。

I have no idea what am i doing wrong here.

Callstack显示异常源自python瓶代码：

Callstack shows the exception derives from python bottle code:

File "C:\Python27\Lib\site-packages\bottle-0.10.9-py2.7.egg\bottle.py", line 1669, in __setitem__
  def __setitem__(self, key, value): self.dict[_hkey(key)] = [str(value)]

请帮助。

Regard，
Omer。

Regard, Omer.

答

瓶正在尝试将HTTP响应上的 Content-Disposition 标头设置为附件； filename = ... 。这不适用于非ASCII字符，因为Bottle在内部使用 str 处理HTTP标头...但是即使没有，也没有跨浏览器-设置 Content-Disposition 和非ASCII 文件名的兼容方法。（背景。）

Bottle is trying to set the Content-Disposition header on the HTTP response to attachment; filename=.... This doesn't work for non-ASCII characters, as Bottle handles HTTP headers with str internally... but then even if it didn't, there's no cross-browser-compatible way to set a Content-Disposition with a non-ASCII filename. (Background.)

您可以将 download ='...'设置为仅ASCII的安全字符串，以覆盖Bottle的默认猜测（使用包含Unicode的本地文件名。）

You could set download='...' to a safe ASCII-only string to override Bottle's default guess (which is using the local filename, containing Unicode).

或者，省略 download 参数，并依靠浏览器的猜测URL末尾的文件名。（这是获取Unicode下载文件名的唯一广泛兼容的方法。）不幸的是，然后Bottle将完全省略 Content-Disposition ，因此请考虑将返回的响应的标头更改为include普通 Content-Disposition：附件，不带文件名。或者，也许您不在乎，如果 Content-Type 是始终可以下载的内容。

Alternatively, omit the download argument and rely on the browser guessing the filename from the end of the URL. (This is the only widely compatible way to get a Unicode download filename.) Unfortunately then Bottle will omit Content-Disposition completely, so consider altering the headers on the returned response to include plain Content-Disposition: attachment without a filename. Or perhaps you don't care, if the Content-Type is one that will always get downloaded anyway.

如何在python瓶中使用希伯来语名称提供静态文件？

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