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- // Copyright (c) 2012 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 NET_BASE_PORT_UTIL_H_
- #define NET_BASE_PORT_UTIL_H_
- #include <stddef.h>
- #include <stdint.h>
- #include "base/containers/span.h"
- #include "base/strings/string_piece.h"
- #include "net/base/net_export.h"
- namespace net {
- // Checks if |port| is in the valid range (0 to 65535, though 0 is technically
- // reserved). Should be used before casting a port to a uint16_t.
- NET_EXPORT bool IsPortValid(int port);
- // Returns true if the port is in the range [0, 1023]. These ports are
- // registered by IANA and typically need root access to listen on.
- NET_EXPORT bool IsWellKnownPort(int port);
- // Checks if the port is allowed for the specified scheme. Ports set as allowed
- // with SetExplicitlyAllowedPorts() or by using ScopedPortException() will be
- // considered allowed for any scheme.
- NET_EXPORT bool IsPortAllowedForScheme(int port, base::StringPiece url_scheme);
- // Returns the number of explicitly allowed ports; for testing.
- NET_EXPORT_PRIVATE size_t GetCountOfExplicitlyAllowedPorts();
- // Set the list of ports to be allowed that otherwise would not be. This
- // replaces the list of allowed ports with the list passed to this function. An
- // empty list will remove all ports. This will reset any ScopedPortExceptions
- // currently active, so it's best to avoid calling this when any of those are
- // active.
- NET_EXPORT void SetExplicitlyAllowedPorts(
- base::span<const uint16_t> allowed_ports);
- // Returns true for ports which are permitted to be passed to
- // SetExplicitlyAllowedPorts(). This is not currently enforced by
- // SetExplicitlyAllowedPorts() itself, as there are still callers that pass
- // other ports.
- NET_EXPORT bool IsAllowablePort(int port);
- class NET_EXPORT ScopedPortException {
- public:
- explicit ScopedPortException(int port);
- ScopedPortException(const ScopedPortException&) = delete;
- ScopedPortException& operator=(const ScopedPortException&) = delete;
- ~ScopedPortException();
- private:
- int port_;
- };
- // Adds a port to the set permitted by GetAllowablePorts(). Cannot be nested.
- class NET_EXPORT ScopedAllowablePortForTesting {
- public:
- explicit ScopedAllowablePortForTesting(int port);
- ScopedAllowablePortForTesting(const ScopedAllowablePortForTesting&) = delete;
- ScopedAllowablePortForTesting& operator=(
- const ScopedAllowablePortForTesting&) = delete;
- ~ScopedAllowablePortForTesting();
- };
- } // namespace net
- #endif // NET_BASE_PORT_UTIL_H_
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