From 348c43b2599d9378455e5ceb312d7fad36e6c003 Mon Sep 17 00:00:00 2001
From: Archi <JustArchi@JustArchi.net>
Date: Sun, 4 Feb 2024 22:28:59 +0100
Subject: [PATCH] Skip spamming ASFB with requests from unlicensed users

Check license prior to fetching inventory and sending data to ASFB, will also limit traffic on Steam side.
---
 .../Backend.cs                                    | 15 +++++++++++++++
 .../RemoteCommunication.cs                        | 14 ++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/ArchiSteamFarm.OfficialPlugins.ItemsMatcher/Backend.cs b/ArchiSteamFarm.OfficialPlugins.ItemsMatcher/Backend.cs
index 5a1016e8c83c6..047b6befa9889 100644
--- a/ArchiSteamFarm.OfficialPlugins.ItemsMatcher/Backend.cs
+++ b/ArchiSteamFarm.OfficialPlugins.ItemsMatcher/Backend.cs
@@ -114,6 +114,21 @@ internal static string GenerateChecksumFor(IList<AssetForListing> assetsForListi
 		return Utilities.GenerateChecksumFor(bytes);
 	}
 
+	internal static async Task<HttpStatusCode?> GetLicenseStatus(Guid licenseID, WebBrowser webBrowser) {
+		ArgumentOutOfRangeException.ThrowIfEqual(licenseID, Guid.Empty);
+		ArgumentNullException.ThrowIfNull(webBrowser);
+
+		Uri request = new(ArchiNet.URL, "/Api/Licenses/Status");
+
+		Dictionary<string, string> headers = new(1, StringComparer.Ordinal) {
+			{ "X-License-Key", licenseID.ToString("N") }
+		};
+
+		ObjectResponse<GenericResponse>? response = await webBrowser.UrlGetToJsonObject<GenericResponse>(request, headers, requestOptions: WebBrowser.ERequestOptions.ReturnClientErrors | WebBrowser.ERequestOptions.AllowInvalidBodyOnErrors).ConfigureAwait(false);
+
+		return response?.StatusCode;
+	}
+
 	internal static async Task<(HttpStatusCode StatusCode, ImmutableHashSet<ListedUser> Users)?> GetListedUsersForMatching(Guid licenseID, Bot bot, WebBrowser webBrowser, IReadOnlyCollection<Asset> inventory, IReadOnlyCollection<Asset.EType> acceptedMatchableTypes) {
 		ArgumentOutOfRangeException.ThrowIfEqual(licenseID, Guid.Empty);
 		ArgumentNullException.ThrowIfNull(bot);
diff --git a/ArchiSteamFarm.OfficialPlugins.ItemsMatcher/RemoteCommunication.cs b/ArchiSteamFarm.OfficialPlugins.ItemsMatcher/RemoteCommunication.cs
index cb496feff6759..6d07da6c9104f 100644
--- a/ArchiSteamFarm.OfficialPlugins.ItemsMatcher/RemoteCommunication.cs
+++ b/ArchiSteamFarm.OfficialPlugins.ItemsMatcher/RemoteCommunication.cs
@@ -920,6 +920,20 @@ private async void MatchActively(object? state = null) {
 		try {
 			Bot.ArchiLogger.LogGenericInfo(Strings.Starting);
 
+			HttpStatusCode? licenseStatus = await Backend.GetLicenseStatus(ASF.GlobalConfig.LicenseID.Value, WebBrowser).ConfigureAwait(false);
+
+			if (licenseStatus == null) {
+				Bot.ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.WarningFailedWithError, nameof(licenseStatus)));
+
+				return;
+			}
+
+			if (!licenseStatus.Value.IsSuccessCode()) {
+				Bot.ArchiLogger.LogGenericWarning(string.Format(CultureInfo.CurrentCulture, Strings.WarningFailedWithError, licenseStatus.Value));
+
+				return;
+			}
+
 			HashSet<Asset> assetsForMatching;
 
 			try {