wsgi.py 文件源码

def __init__(self, environ):
        """Parses the given WSGI environ to construct the request."""
        self.method = environ["REQUEST_METHOD"]
        self.path = urllib.quote(environ.get("SCRIPT_NAME", ""))
        self.path += urllib.quote(environ.get("PATH_INFO", ""))
        self.uri = self.path
        self.arguments = {}
        self.query = environ.get("QUERY_STRING", "")
        if self.query:
            self.uri += "?" + self.query
            arguments = cgi.parse_qs(self.query)
            for name, values in arguments.iteritems():
                values = [v for v in values if v]
                if values: self.arguments[name] = values
        self.version = "HTTP/1.1"
        self.headers = httputil.HTTPHeaders()
        if environ.get("CONTENT_TYPE"):
            self.headers["Content-Type"] = environ["CONTENT_TYPE"]
        if environ.get("CONTENT_LENGTH"):
            self.headers["Content-Length"] = environ["CONTENT_LENGTH"]
        for key in environ:
            if key.startswith("HTTP_"):
                self.headers[key[5:].replace("_", "-")] = environ[key]
        if self.headers.get("Content-Length"):
            self.body = environ["wsgi.input"].read(
                int(self.headers["Content-Length"]))
        else:
            self.body = ""
        self.protocol = environ["wsgi.url_scheme"]
        self.remote_ip = environ.get("REMOTE_ADDR", "")
        if environ.get("HTTP_HOST"):
            self.host = environ["HTTP_HOST"]
        else:
            self.host = environ["SERVER_NAME"]

        # Parse request body
        self.files = {}
        content_type = self.headers.get("Content-Type", "")
        if content_type.startswith("application/x-www-form-urlencoded"):
            for name, values in cgi.parse_qs(self.body).iteritems():
                self.arguments.setdefault(name, []).extend(values)
        elif content_type.startswith("multipart/form-data"):
            if 'boundary=' in content_type:
                boundary = content_type.split('boundary=',1)[1]
                if boundary:
                    httputil.parse_multipart_form_data(
                        utf8(boundary), self.body, self.arguments, self.files)
            else:
                logging.warning("Invalid multipart/form-data")

        self._start_time = time.time()
        self._finish_time = None