aspnetcore/src/Microsoft.AspNetCore.Mvc.Ab.../IUrlHelper.cs

84 lines
3.8 KiB
C#

// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using Microsoft.AspNetCore.Mvc.Routing;
namespace Microsoft.AspNetCore.Mvc
{
/// <summary>
/// Defines the contract for the helper to build URLs for ASP.NET MVC within an application.
/// </summary>
public interface IUrlHelper
{
/// <summary>
/// Gets the <see cref="ActionContext"/> for the current request.
/// </summary>
ActionContext ActionContext { get; }
/// <summary>
/// Generates a URL with an absolute path for an action method, which contains the action
/// name, controller name, route values, protocol to use, host name, and fragment specified by
/// <see cref="UrlActionContext"/>. Generates an absolute URL if <see cref="UrlActionContext.Protocol"/> and
/// <see cref="UrlActionContext.Host"/> are non-<c>null</c>.
/// </summary>
/// <param name="actionContext">The context object for the generated URLs for an action method.</param>
/// <returns>The generated URL.</returns>
string Action(UrlActionContext actionContext);
/// <summary>
/// Converts a virtual (relative) path to an application absolute path.
/// </summary>
/// <remarks>
/// If the specified content path does not start with the tilde (~) character,
/// this method returns <paramref name="contentPath"/> unchanged.
/// </remarks>
/// <param name="contentPath">The virtual path of the content.</param>
/// <returns>The application absolute path.</returns>
string Content(string contentPath);
/// <summary>
/// Returns a value that indicates whether the URL is local. A URL is considered local if it does not have a
/// host / authority part and it has an absolute path. URLs using virtual paths ('~/') are also local.
/// </summary>
/// <param name="url">The URL.</param>
/// <returns><c>true</c> if the URL is local; otherwise, <c>false</c>.</returns>
/// <example>
/// <para>
/// For example, the following URLs are considered local:
/// <code>
/// /Views/Default/Index.html
/// ~/Index.html
/// </code>
/// </para>
/// <para>
/// The following URLs are non-local:
/// <code>
/// ../Index.html
/// http://www.contoso.com/
/// http://localhost/Index.html
/// </code>
/// </para>
/// </example>
bool IsLocalUrl(string url);
/// <summary>
/// Generates a URL with an absolute path, which contains the route name, route values, protocol to use, host
/// name, and fragment specified by <see cref="UrlRouteContext"/>. Generates an absolute URL if
/// <see cref="UrlActionContext.Protocol"/> and <see cref="UrlActionContext.Host"/> are non-<c>null</c>.
/// </summary>
/// <param name="routeContext">The context object for the generated URLs for a route.</param>
/// <returns>The generated URL.</returns>
string RouteUrl(UrlRouteContext routeContext);
/// <summary>
/// Generates an absolute URL for the specified <paramref name="routeName"/> and route
/// <paramref name="values"/>, which contains the protocol (such as "http" or "https") and host name from the
/// current request.
/// </summary>
/// <param name="routeName">The name of the route that is used to generate URL.</param>
/// <param name="values">An object that contains route values.</param>
/// <returns>The generated absolute URL.</returns>
string Link(string routeName, object values);
}
}