_cperror.py 文件源码

def _be_ie_unfriendly(status):
    import cherrypy
    response = cherrypy.serving.response

    # For some statuses, Internet Explorer 5+ shows "friendly error
    # messages" instead of our response.body if the body is smaller
    # than a given size. Fix this by returning a body over that size
    # (by adding whitespace).
    # See http://support.microsoft.com/kb/q218155/
    s = _ie_friendly_error_sizes.get(status, 0)
    if s:
        s += 1
        # Since we are issuing an HTTP error status, we assume that
        # the entity is short, and we should just collapse it.
        content = response.collapse_body()
        l = len(content)
        if l and l < s:
            # IN ADDITION: the response must be written to IE
            # in one chunk or it will still get replaced! Bah.
            content = content + (ntob(" ") * (s - l))
        response.body = content
        response.headers['Content-Length'] = str(len(content))