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// Copyright (c) 2013 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 QUICHE_QUIC_CORE_HTTP_SPDY_SERVER_PUSH_UTILS_H_
#define QUICHE_QUIC_CORE_HTTP_SPDY_SERVER_PUSH_UTILS_H_
#include "absl/strings/string_view.h"
#include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
#include "net/third_party/quiche/src/spdy/core/spdy_header_block.h"
namespace quic {
class QUIC_EXPORT_PRIVATE SpdyServerPushUtils {
public:
SpdyServerPushUtils() = delete;
// Returns a canonicalized URL composed from the :scheme, :authority, and
// :path headers of a PUSH_PROMISE. Returns empty string if the headers do not
// conform to HTTP/2 spec or if the ":method" header contains a forbidden
// method for PUSH_PROMISE.
static std::string GetPromisedUrlFromHeaders(
const spdy::SpdyHeaderBlock& headers);
// Returns hostname, or empty string if missing.
static std::string GetPromisedHostNameFromHeaders(
const spdy::SpdyHeaderBlock& headers);
// Returns true if result of |GetPromisedUrlFromHeaders()| is non-empty
// and is a well-formed URL.
static bool PromisedUrlIsValid(const spdy::SpdyHeaderBlock& headers);
// Returns a canonical, valid URL for a PUSH_PROMISE with the specified
// ":scheme", ":authority", and ":path" header fields, or an empty
// string if the resulting URL is not valid or supported.
static std::string GetPushPromiseUrl(absl::string_view scheme,
absl::string_view authority,
absl::string_view path);
};
} // namespace quic
#endif // QUICHE_QUIC_CORE_HTTP_SPDY_SERVER_PUSH_UTILS_H_