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How to use get_forwarded_for_host method in localstack

Best Python code snippet using localstack_python

s3_utils.py

Source:s3_utils.py

...132    """133    Get bucket name for addressing style host for website hosting134    """135    return "%s.%s:%s" % (bucket_name, S3_STATIC_WEBSITE_HOSTNAME, config.EDGE_PORT)136def get_forwarded_for_host(headers):137    x_forwarded_header = re.split(r",\s?", headers.get("X-Forwarded-For", ""))138    host = x_forwarded_header[len(x_forwarded_header) - 1]139    return host140def is_real_s3_url(url):141    return re.match(r".*s3(\-website)?\.([^\.]+\.)?amazonaws.com.*", url or "")142def is_expired(expiry_datetime):143    now_datetime = datetime.datetime.now(tz=expiry_datetime.tzinfo)144    return now_datetime > expiry_datetime145def authenticate_presign_url(method, path, headers, data=None):146    url = "{}{}".format(config.get_edge_url(), path)147    parsed = urlparse.urlparse(url)148    query_params = parse_qs(parsed.query)149    forwarded_for = get_forwarded_for_host(headers)150    if forwarded_for:151        url = re.sub("://[^/]+", "://%s" % forwarded_for, url)152    LOGGER.debug("Received presign S3 URL: %s" % url)153    sign_headers = {}154    query_string = {}155    is_v2 = all([p in query_params for p in SIGNATURE_V2_PARAMS])156    is_v4 = all([p in query_params for p in SIGNATURE_V4_PARAMS])157    # Add overrided headers to the query string params158    for param_name, header_name in ALLOWED_HEADER_OVERRIDES.items():159        if param_name in query_params:160            query_string[param_name] = query_params[param_name][0]161    # Request's headers are more essentials than the query parameters in the request.162    # Different values of header in the header of the request and in the query parameter of the163    # request URL will fail the signature calulation. As per the AWS behaviour...

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