Malformed PortRange or ThirdPartyAuthConfig trigger OnPolicyError.

remoting/protocol/port_range.h

+// Copyright 2015 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 REMOTING_PROTOCOL_PORT_RANGE_H_
+#define REMOTING_PROTOCOL_PORT_RANGE_H_
+
+#include <ostream>
+#include <string>
+
+#include "base/basictypes.h"
+
+namespace remoting {
+
+// Wrapper for a value of UdpPortRange policy.
+struct PortRange {
+  // Both |min_port| and |max_port| are inclusive.
+  uint16 min_port;
+  uint16 max_port;
+
+  // Returns true if |port_range| passed to Parse was an empty string
+  // (or if |this| has been initialized by the default constructor below).
+  inline bool is_null() const { return (min_port == 0) && (max_port == 0); }
+
+  // Parse string in the form "<min_port>-<max_port>". E.g. "12400-12409".
+  // Returns true if string was parsed successfuly.
+  //
+  // Returns false and doesn't modify |result| if parsing fails (i.e. when
+  // |port_range| doesn't represent a valid port range).
+  static bool Parse(const std::string& port_range, PortRange* result);
+
+  PortRange() : min_port(0), max_port(0) {}
+};
+
+std::ostream& operator<<(std::ostream& os, const PortRange& port_range);
+
+}  // namespace remoting
+
+#endif  // REMOTING_PROTOCOL_PORT_RANGE_H_