| // Copyright 2020 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef THIRD_PARTY_BLINK_PUBLIC_COMMON_NET_IP_ADDRESS_SPACE_UTIL_H_ |
| #define THIRD_PARTY_BLINK_PUBLIC_COMMON_NET_IP_ADDRESS_SPACE_UTIL_H_ |
| |
| #include "services/network/public/mojom/ip_address_space.mojom.h" |
| #include "services/network/public/mojom/url_response_head.mojom-forward.h" |
| #include "third_party/blink/public/common/common_export.h" |
| |
| class GURL; |
| |
| namespace net { |
| |
| class IPAddress; |
| |
| } // namespace net |
| |
| namespace blink { |
| |
| // Given a request URL and response information, this function calculates the |
| // IPAddressSpace which should be associated with documents or worker global |
| // scopes (collectively: request clients) instantiated from this resource. |
| // |
| // |response_head| may be nullptr. Caller retains ownership. If not nullptr, |
| // then |response_head->parsed_headers| must be populated with the result of |
| // parsing |response->headers|. |
| // |
| // WARNING: This function is defined here for proximity with related code and |
| // the data structures involved. However since it deals with higher-level |
| // concepts too (documents and worker global scopes), it should probably only be |
| // used at the content/ layer or above. |
| // |
| // See: https://wicg.github.io/cors-rfc1918/#address-space |
| // |
| // TODO(https://crbug.com/1134601): This implementation treats requests that |
| // don't use a URL loader (`about:blank`), as well as requests whose IP address |
| // is invalid (`about:srcdoc`, `blob:`, etc.) as `kUnknown`. This is incorrect. |
| // We'll eventually want to make sure we inherit from the client's creator |
| // in some cases), but safe, as `kUnknown` is treated the same as `kPublic`. |
| network::mojom::IPAddressSpace BLINK_COMMON_EXPORT CalculateClientAddressSpace( |
| const GURL& url, |
| const network::mojom::URLResponseHead* response_head); |
| |
| // Given a response URL and the IP address the requested resource was fetched |
| // from, this function calculates the IPAddressSpace of the requested resource. |
| // |
| // As opposed to CalculateClientAddressSpace(), this function is used to |
| // determine the address space of the *target* of a fetch, for comparison with |
| // that of the client of the fetch. |
| // |
| // See: https://wicg.github.io/cors-rfc1918/#integration-fetch |
| network::mojom::IPAddressSpace BLINK_COMMON_EXPORT |
| CalculateResourceAddressSpace(const GURL& url, const net::IPAddress& address); |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_PUBLIC_COMMON_NET_IP_ADDRESS_SPACE_UTIL_H_ |
