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/*
* BSD 3-Clause License
*
* Copyright (c) 2021, Kevin Robertson
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
using Quiddity.DNS;
using Quiddity.Support;
using System;
namespace Quiddity.MDNS
{
class MDNSChecker : DNSChecker
{
public string[] Questions { get; set; }
public string OutputQuestionDenied { get; set; }
public MDNSChecker()
{
this.OutputReplyAllowed = "response sent";
this.OutputInspect = "inspect only";
this.OutputDisabled = "disabled";
this.OutputHostDenied = "host ignored";
this.OutputIPDenied = "IP ignored";
this.OutputTypeDenied = "type ignored";
this.OutputServiceDenied = "service ignored";
this.OutputRepeat = "previous capture";
this.OutputQuestionDenied = "question type ignored";
}
public virtual bool Check(string name, string question, string type, string clientIP)
{
if (!Check(name, type, clientIP))
{
return false;
}
else if (!QuestionIsAllowed(question))
{
this.OutputMessage = this.OutputQuestionDenied;
return false;
}
return true;
}
public bool QuestionIsAllowed(string question)
{
if (!Utilities.ArrayIsNullOrEmpty(this.Questions) && !Array.Exists(this.Questions, element => element == question.ToUpper()))
{
return false;
}
return true;
}
}
}
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