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using System.Collections.Generic;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using Pathoschild.Http.Client;
using StardewModdingAPI.Toolkit.Framework.UpdateData;
using StardewModdingAPI.Web.Framework.Clients.CurseForge.ResponseModels;
namespace StardewModdingAPI.Web.Framework.Clients.CurseForge
{
/// <summary>An HTTP client for fetching mod metadata from the CurseForge API.</summary>
internal class CurseForgeClient : ICurseForgeClient
{
/*********
** Fields
*********/
/// <summary>The underlying HTTP client.</summary>
private readonly IClient Client;
/// <summary>A regex pattern which matches a version number in a CurseForge mod file name.</summary>
private readonly Regex VersionInNamePattern = new Regex(@"^(?:.+? | *)v?(\d+\.\d+(?:\.\d+)?(?:-.+?)?) *(?:\.(?:zip|rar|7z))?$", RegexOptions.Compiled);
/*********
** Accessors
*********/
/// <summary>The unique key for the mod site.</summary>
public ModSiteKey SiteKey => ModSiteKey.CurseForge;
/*********
** Public methods
*********/
/// <summary>Construct an instance.</summary>
/// <param name="userAgent">The user agent for the API client.</param>
/// <param name="apiUrl">The base URL for the CurseForge API.</param>
public CurseForgeClient(string userAgent, string apiUrl)
{
this.Client = new FluentClient(apiUrl).SetUserAgent(userAgent);
}
/// <summary>Get update check info about a mod.</summary>
/// <param name="id">The mod ID.</param>
public async Task<IModPage> GetModData(string id)
{
IModPage page = new GenericModPage(this.SiteKey, id);
// get ID
if (!uint.TryParse(id, out uint parsedId))
return page.SetError(RemoteModStatus.DoesNotExist, $"The value '{id}' isn't a valid CurseForge mod ID, must be an integer ID.");
// get raw data
ModModel mod = await this.Client
.GetAsync($"addon/{parsedId}")
.As<ModModel>();
if (mod == null)
return page.SetError(RemoteModStatus.DoesNotExist, "Found no CurseForge mod with this ID.");
// get downloads
List<IModDownload> downloads = new List<IModDownload>();
foreach (ModFileModel file in mod.LatestFiles)
{
downloads.Add(
new GenericModDownload(name: file.DisplayName ?? file.FileName, description: null, version: this.GetRawVersion(file))
);
}
// return info
return page.SetInfo(name: mod.Name, version: null, url: mod.WebsiteUrl, downloads: downloads);
}
/// <summary>Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.</summary>
public void Dispose()
{
this.Client?.Dispose();
}
/*********
** Private methods
*********/
/// <summary>Get a raw version string for a mod file, if available.</summary>
/// <param name="file">The file whose version to get.</param>
private string GetRawVersion(ModFileModel file)
{
Match match = this.VersionInNamePattern.Match(file.DisplayName);
if (!match.Success)
match = this.VersionInNamePattern.Match(file.FileName);
return match.Success
? match.Groups[1].Value
: null;
}
}
}
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