| // Copyright 2016 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 COMPONENTS_LINK_HEADER_UTIL_LINK_HEADER_UTIL_H_ |
| #define COMPONENTS_LINK_HEADER_UTIL_LINK_HEADER_UTIL_H_ |
| |
| #include <string> |
| #include <unordered_map> |
| #include <vector> |
| |
| #include "base/macros.h" |
| #include "base/optional.h" |
| |
| namespace link_header_util { |
| |
| using StringIteratorPair = |
| std::pair<std::string::const_iterator, std::string::const_iterator>; |
| |
| // Split a Link: header in its individual values. A single Link: header can |
| // contain multiple values, which are comma separated. This method splits the |
| // entire string into iterator pairs for the individual link values. |
| // This is very similar to what net::HttpUtil::ValuesIterator does, except it |
| // takes the special syntax of <> enclosed URLs into account. |
| std::vector<StringIteratorPair> SplitLinkHeader(const std::string& header); |
| |
| // Parse an individual link header in its URL and parameters. |begin| and |end| |
| // indicate the string to parse. If it is succesfully parsed as a link header |
| // value this method returns true, sets |url| to the URL part of the link header |
| // value and adds the parameters from the link header value to |params|. |
| // If any error occurs parsing, this returns false (but might have also modified |
| // |url| and/or |params|). |
| bool ParseLinkHeaderValue( |
| std::string::const_iterator begin, |
| std::string::const_iterator end, |
| std::string* url, |
| std::unordered_map<std::string, base::Optional<std::string>>* params); |
| |
| } // namespace link_header_util |
| |
| #endif // COMPONENTS_LINK_HEADER_UTIL_LINK_HEADER_UTIL_H_ |