_cperror.py 文件源码

def __init__(self, urls, status=None, encoding=None):
        import cherrypy
        request = cherrypy.serving.request

        if isinstance(urls, text_or_bytes):
            urls = [urls]

        abs_urls = []
        for url in urls:
            url = tonative(url, encoding or self.encoding)

            # Note that urljoin will "do the right thing" whether url is:
            #  1. a complete URL with host (e.g. "http://www.example.com/test")
            #  2. a URL relative to root (e.g. "/dummy")
            #  3. a URL relative to the current path
            # Note that any query string in cherrypy.request is discarded.
            url = _urljoin(cherrypy.url(), url)
            abs_urls.append(url)
        self.urls = abs_urls

        # RFC 2616 indicates a 301 response code fits our goal; however,
        # browser support for 301 is quite messy. Do 302/303 instead. See
        # http://www.alanflavell.org.uk/www/post-redirect.html
        if status is None:
            if request.protocol >= (1, 1):
                status = 303
            else:
                status = 302
        else:
            status = int(status)
            if status < 300 or status > 399:
                raise ValueError('status must be between 300 and 399.')

        self.status = status
        CherryPyException.__init__(self, abs_urls, status)