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using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Text;
using System.Threading.Tasks;
using Newtonsoft.Json;
using StardewModdingAPI.Models;
namespace StardewModdingAPI.Framework
{
/// <summary>Provides methods for interacting with the SMAPI web API.</summary>
internal class WebApiClient
{
/*********
** Properties
*********/
/// <summary>The base URL for the web API.</summary>
private readonly Uri BaseUrl;
/// <summary>The API version number.</summary>
private readonly ISemanticVersion Version;
/*********
** Public methods
*********/
/// <summary>Construct an instance.</summary>
/// <param name="baseUrl">The base URL for the web API.</param>
/// <param name="version">The web API version.</param>
public WebApiClient(string baseUrl, ISemanticVersion version)
{
#if !SMAPI_FOR_WINDOWS
baseUrl = baseUrl.Replace("https://", "http://"); // workaround for OpenSSL issues with the game's bundled Mono on Linux/Mac
#endif
this.BaseUrl = new Uri(baseUrl);
this.Version = version;
}
/// <summary>Get the latest SMAPI version.</summary>
/// <param name="modKeys">The mod keys for which to fetch the latest version.</param>
public async Task<IDictionary<string, ModInfoModel>> GetModInfoAsync(params string[] modKeys)
{
return await this.PostAsync<ModSearchModel, Dictionary<string, ModInfoModel>>(
$"v{this.Version}/mods",
new ModSearchModel(modKeys)
);
}
/*********
** Private methods
*********/
/// <summary>Fetch the response from the backend API.</summary>
/// <typeparam name="TBody">The body content type.</typeparam>
/// <typeparam name="TResult">The expected response type.</typeparam>
/// <param name="url">The request URL, optionally excluding the base URL.</param>
/// <param name="content">The body content to post.</param>
private async Task<TResult> PostAsync<TBody, TResult>(string url, TBody content)
{
/***
** Note: avoid HttpClient for Mac compatibility.
***/
// serialise content
byte[] data = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(content));
// build request
HttpWebRequest request = WebRequest.CreateHttp(new Uri(this.BaseUrl, url).ToString());
request.Method = "POST";
request.UserAgent = $"SMAPI/{this.Version}";
request.ContentType = "application/json";
request.ContentLength = data.Length;
using (Stream bodyStream = request.GetRequestStream())
bodyStream.Write(data, 0, data.Length);
// fetch data
using (WebResponse response = await request.GetResponseAsync())
using (Stream responseStream = response.GetResponseStream())
using (StreamReader reader = new StreamReader(responseStream))
{
string responseText = reader.ReadToEnd();
return JsonConvert.DeserializeObject<TResult>(responseText);
}
}
}
}
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