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using System;
using JetBrains.Annotations;
using Microsoft.AspNetCore.Html;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Razor;
using Microsoft.AspNetCore.Mvc.Rendering;
using Microsoft.AspNetCore.Routing;
using Newtonsoft.Json;
namespace StardewModdingAPI.Web.Framework
{
/// <summary>Provides extensions on ASP.NET Core types.</summary>
public static class Extensions
{
/*********
** Public methods
*********/
/****
** View helpers
****/
/// <summary>Get a URL for an action method. Unlike <see cref="IUrlHelper.Action"/>, only the specified <paramref name="values"/> are added to the URL without merging values from the current HTTP request.</summary>
/// <param name="helper">The URL helper to extend.</param>
/// <param name="action">The name of the action method.</param>
/// <param name="controller">The name of the controller.</param>
/// <param name="values">An object that contains route values.</param>
/// <param name="absoluteUrl">Get an absolute URL instead of a server-relative path/</param>
/// <returns>The generated URL.</returns>
public static string? PlainAction(this IUrlHelper helper, [AspMvcAction] string action, [AspMvcController] string controller, object? values = null, bool absoluteUrl = false)
{
// get route values
RouteValueDictionary valuesDict = new(values);
foreach (var value in helper.ActionContext.RouteData.Values)
{
if (!valuesDict.ContainsKey(value.Key))
valuesDict[value.Key] = null; // explicitly remove it from the URL
}
// get relative URL
string? url = helper.Action(action, controller, valuesDict);
if (url == null && action.EndsWith("Async"))
url = helper.Action(action[..^"Async".Length], controller, valuesDict);
// get absolute URL
if (absoluteUrl)
{
HttpRequest request = helper.ActionContext.HttpContext.Request;
Uri baseUri = new($"{request.Scheme}://{request.Host}");
url = new Uri(baseUri, url).ToString();
}
return url;
}
/// <summary>Get a serialized JSON representation of the value.</summary>
/// <param name="page">The page to extend.</param>
/// <param name="value">The value to serialize.</param>
/// <returns>The serialized JSON.</returns>
/// <remarks>This bypasses unnecessary validation (e.g. not allowing null values) in <see cref="IJsonHelper.Serialize"/>.</remarks>
public static IHtmlContent ForJson(this RazorPageBase page, object? value)
{
string json = JsonConvert.SerializeObject(value);
return new HtmlString(json);
}
}
}
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