/Utilities.Validation/Validation/Rules/IsEmailAddress.cs

/*

Copyright (c) 2012 <a href="http://www.gutgames.com">James Craig</a>



Permission is hereby granted, free of charge, to any person obtaining a copy

of this software and associated documentation files (the "Software"), to deal

in the Software without restriction, including without limitation the rights

to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

copies of the Software, and to permit persons to whom the Software is

furnished to do so, subject to the following conditions:



The above copyright notice and this permission notice shall be included in

all copies or substantial portions of the Software.



THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

THE SOFTWARE.*/

#region Usings

using System;

using System.Collections.Generic;

using System.Reflection;

using System.Text;

using System.Text.RegularExpressions;

using System.Linq;

using Utilities.Validation.BaseClasses;

using Utilities.Validation.Exceptions;

#endregion



namespace Utilities.Validation.Rules

{

    /// <summary>

    /// Email address

    /// </summary>

    public class IsEmailAddress<ObjectType> : Rule<ObjectType, string>

    {

        #region Constructor



        /// <summary>

        /// Constructor

        /// </summary>

        /// <param name="ItemToValidate">Item to validate</param>

        /// <param name="ErrorMessage">Error message</param>

        public IsEmailAddress(Func<ObjectType, string> ItemToValidate, string ErrorMessage)

            : base(ItemToValidate, ErrorMessage)

        {

        }



        #endregion



        #region Functions



        public override void Validate(ObjectType Object)

        {

            string Value = this.ItemToValidate(Object);

            if (string.IsNullOrEmpty(Value))

                return;

            System.Text.RegularExpressions.Regex TempReg = new System.Text.RegularExpressions.Regex(@"^([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}" +

                  @"\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\" +

                  @".)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$");

            if(!TempReg.IsMatch(Value))

                throw new NotValid(ErrorMessage);

        }



        #endregion

    }



    /// <summary>

    /// IsEmailAddress attribute

    /// </summary>

    public class IsEmailAddress : BaseAttribute

    {

        #region Constructor



        /// <summary>

        /// Constructor

        /// </summary>

        /// <param name="ErrorMessage">Error message</param>

        public IsEmailAddress(string ErrorMessage = "")

            : base(ErrorMessage)

        {

        }



        #endregion

    }

}