Umbraco-CMS/src/Umbraco.Core/Web/IRequestAccessor.cs

using System;

namespace Umbraco.Cms.Core.Web
{
    public interface IRequestAccessor
    {
        /// <summary>
        /// Returns the request/form/querystring value for the given name
        /// </summary>
        string GetRequestValue(string name);

        /// <summary>
        /// Returns the query string value for the given name
        /// </summary>
        string GetQueryStringValue(string name);

        /// <summary>
        /// Returns the current request uri
        /// </summary>
        Uri GetRequestUrl();
    }
}