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