auth.py 文件源码

def add_auth(self, http_request, **kwargs):
        headers = http_request.headers
        method = http_request.method
        auth_path = http_request.auth_path
        if 'Date' not in headers:
            headers['Date'] = formatdate(usegmt=True)

        if self._provider.security_token:
            key = self._provider.security_token_header
            headers[key] = self._provider.security_token
        string_to_sign = boto.utils.canonical_string(method, auth_path,
                                                     headers, None,
                                                     self._provider)
        boto.log.debug('StringToSign:\n%s' % string_to_sign)
        b64_hmac = self.sign_string(string_to_sign)
        auth_hdr = self._provider.auth_header
        headers['Authorization'] = ("%s %s:%s" %
                                    (auth_hdr,
                                     self._provider.access_key, b64_hmac))