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How to use remove_xml_preamble method in localstack

Best Python code snippet using localstack_python

s3_listener.py

Source:s3_listener.py

...529    if "LocationConstraint" in content:530        pattern = r"<LocationConstraint([^>]*)>\s*</LocationConstraint>"531        replace = r"<LocationConstraint\1>%s</LocationConstraint>" % aws_stack.get_region()532        response._content = re.sub(pattern, replace, content)533        remove_xml_preamble(response)534def fix_range_content_type(bucket_name, path, headers, response):535    # Fix content type for Range requests - https://github.com/localstack/localstack/issues/1259536    if "Range" not in headers:537        return538    if response.status_code >= 400:539        return540    s3_client = aws_stack.connect_to_service("s3")541    path = urlparse.urlparse(urlparse.unquote(path)).path542    key_name = extract_key_name(headers, path)543    result = s3_client.head_object(Bucket=bucket_name, Key=key_name)544    content_type = result["ContentType"]545    if response.headers.get("Content-Type") == "text/html; charset=utf-8":546        response.headers["Content-Type"] = content_type547def fix_delete_objects_response(bucket_name, method, parsed_path, data, headers, response):548    # Deleting non-existing keys should not result in errors.549    # Fixes https://github.com/localstack/localstack/issues/1893550    if not (method == "POST" and parsed_path.query == "delete" and "<Delete" in to_str(data or "")):551        return552    content = to_str(response._content)553    if "<Error>" not in content:554        return555    result = xmltodict.parse(content).get("DeleteResult")556    errors = result.get("Error")557    errors = errors if isinstance(errors, list) else [errors]558    deleted = result.get("Deleted")559    if not isinstance(result.get("Deleted"), list):560        deleted = result["Deleted"] = [deleted] if deleted else []561    for entry in list(errors):562        if set(entry.keys()) == set(["Key"]):563            errors.remove(entry)564            deleted.append(entry)565    if not errors:566        result.pop("Error")567    response._content = xmltodict.unparse({"DeleteResult": result})568def fix_metadata_key_underscores(request_headers={}, response=None):569    # fix for https://github.com/localstack/localstack/issues/1790570    underscore_replacement = "---"571    meta_header_prefix = "x-amz-meta-"572    prefix_len = len(meta_header_prefix)573    updated = False574    for key in list(request_headers.keys()):575        if key.lower().startswith(meta_header_prefix):576            key_new = meta_header_prefix + key[prefix_len:].replace("_", underscore_replacement)577            if key != key_new:578                request_headers[key_new] = request_headers.pop(key)579                updated = True580    if response is not None:581        for key in list(response.headers.keys()):582            if key.lower().startswith(meta_header_prefix):583                key_new = meta_header_prefix + key[prefix_len:].replace(underscore_replacement, "_")584                if key != key_new:585                    response.headers[key_new] = response.headers.pop(key)586    return updated587def fix_creation_date(method, path, response):588    if method != "GET" or path != "/":589        return590    response._content = re.sub(591        r"(\.[0-9]+)(\+00:00)?</CreationDate>",592        r"\1Z</CreationDate>",593        to_str(response._content),594    )595def fix_delimiter(data, headers, response):596    if response.status_code == 200 and response._content:597        c, xml_prefix, delimiter = response._content, "<?xml", "<Delimiter><"598        pattern = "[<]Delimiter[>]None[<]"599        if isinstance(c, bytes):600            xml_prefix, delimiter = xml_prefix.encode(), delimiter.encode()601            pattern = pattern.encode()602        if c.startswith(xml_prefix):603            response._content = re.compile(pattern).sub(delimiter, c)604def convert_to_chunked_encoding(method, path, response):605    if method != "GET" or path != "/":606        return607    if response.headers.get("Transfer-Encoding", "").lower() == "chunked":608        return609    response.headers["Transfer-Encoding"] = "chunked"610    response.headers.pop("Content-Encoding", None)611    response.headers.pop("Content-Length", None)612def unquote(s):613    if (s[0], s[-1]) in (('"', '"'), ("'", "'")):614        return s[1:-1]615    return s616def ret304_on_etag(data, headers, response):617    etag = response.headers.get("ETag")618    if etag:619        match = headers.get("If-None-Match")620        if match and unquote(match) == unquote(etag):621            response.status_code = 304622            response._content = ""623def fix_etag_for_multipart(data, headers, response):624    # Fix for https://github.com/localstack/localstack/issues/1978625    if headers.get(CONTENT_SHA256_HEADER) == STREAMING_HMAC_PAYLOAD:626        try:627            if b"chunk-signature=" not in to_bytes(data):628                return629            correct_hash = md5(strip_chunk_signatures(data))630            tags = r"<ETag>%s</ETag>"631            pattern = r"(&#34;)?([^<&]+)(&#34;)?"632            replacement = r"\g<1>%s\g<3>" % correct_hash633            response._content = re.sub(tags % pattern, tags % replacement, to_str(response.content))634            if response.headers.get("ETag"):635                response.headers["ETag"] = re.sub(pattern, replacement, response.headers["ETag"])636        except Exception:637            pass638def remove_xml_preamble(response):639    """Removes <?xml ... ?> from a response content"""640    response._content = re.sub(r"^<\?[^\?]+\?>", "", to_str(response._content))641# --------------642# HELPER METHODS643#   for lifecycle/replication/...644# --------------645def get_lifecycle(bucket_name):646    bucket_name = normalize_bucket_name(bucket_name)647    exists, code, body = is_bucket_available(bucket_name)648    if not exists:649        return xml_response(body, status_code=code)650    lifecycle = BUCKET_LIFECYCLE.get(bucket_name)651    status_code = 200652    if not lifecycle:...

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