Catch exceptions when fetching images from third party emote providers

TwitchDownloaderCore/ChatDownloader.cs

@@ -421,7 +421,7 @@ public async Task DownloadAsync(IProgress<ProgressReport> progress, Cancellation
 
                 // This is the exact same process as in ChatUpdater.cs but not in a task oriented manner
                 // TODO: Combine this with ChatUpdater in a different file
-                List<TwitchEmote> thirdPartyEmotes = await TwitchHelper.GetThirdPartyEmotes(chatRoot.comments, chatRoot.streamer.id, downloadOptions.TempFolder, bttv: downloadOptions.BttvEmotes, ffz: downloadOptions.FfzEmotes, stv: downloadOptions.StvEmotes, cancellationToken: cancellationToken);
+                List<TwitchEmote> thirdPartyEmotes = await TwitchHelper.GetThirdPartyEmotes(chatRoot.comments, chatRoot.streamer.id, downloadOptions.TempFolder, bttv: downloadOptions.BttvEmotes, ffz: downloadOptions.FfzEmotes, stv: downloadOptions.StvEmotes, progress: progress, cancellationToken: cancellationToken);
                 List<TwitchEmote> firstPartyEmotes = await TwitchHelper.GetEmotes(chatRoot.comments, downloadOptions.TempFolder, cancellationToken: cancellationToken);
                 List<ChatBadge> twitchBadges = await TwitchHelper.GetChatBadges(chatRoot.comments, chatRoot.streamer.id, downloadOptions.TempFolder, cancellationToken: cancellationToken);
                 List<CheerEmote> twitchBits = await TwitchHelper.GetBits(chatRoot.comments, downloadOptions.TempFolder, chatRoot.streamer.id.ToString(), cancellationToken: cancellationToken);

TwitchDownloaderCore/ChatRenderer.cs

@@ -1657,7 +1657,7 @@ private async Task<List<TwitchEmote>> GetScaledEmotes(CancellationToken cancella
         private async Task<List<TwitchEmote>> GetScaledThirdEmotes(CancellationToken cancellationToken)
         {
             var emoteThirdTask = await TwitchHelper.GetThirdPartyEmotes(chatRoot.comments, chatRoot.streamer.id, renderOptions.TempFolder, chatRoot.embeddedData, renderOptions.BttvEmotes, renderOptions.FfzEmotes,
-                renderOptions.StvEmotes, renderOptions.AllowUnlistedEmotes, renderOptions.Offline, cancellationToken);
+                renderOptions.StvEmotes, renderOptions.AllowUnlistedEmotes, renderOptions.Offline, _progress, cancellationToken);
 
             foreach (var emote in emoteThirdTask)
             {

TwitchDownloaderCore/ChatUpdater.cs

@@ -271,7 +271,7 @@ private async Task FirstPartyEmoteTask(IProgress<ProgressReport> progress = null
 
         private async Task ThirdPartyEmoteTask(IProgress<ProgressReport> progress = null, CancellationToken cancellationToken = default)
         {
-            List<TwitchEmote> thirdPartyEmoteList = await TwitchHelper.GetThirdPartyEmotes(chatRoot.comments, chatRoot.streamer.id, _updateOptions.TempFolder, _updateOptions.ReplaceEmbeds ? null : chatRoot.embeddedData, _updateOptions.BttvEmotes, _updateOptions.FfzEmotes, _updateOptions.StvEmotes, cancellationToken: cancellationToken);
+            List<TwitchEmote> thirdPartyEmoteList = await TwitchHelper.GetThirdPartyEmotes(chatRoot.comments, chatRoot.streamer.id, _updateOptions.TempFolder, _updateOptions.ReplaceEmbeds ? null : chatRoot.embeddedData, _updateOptions.BttvEmotes, _updateOptions.FfzEmotes, _updateOptions.StvEmotes, progress: progress, cancellationToken: cancellationToken);
 
             int inputCount = chatRoot.embeddedData.thirdParty.Count;
             chatRoot.embeddedData.thirdParty = new List<EmbedEmoteData>();

TwitchDownloaderCore/TwitchHelper.cs

@@ -344,7 +344,7 @@ private static async Task<List<EmoteResponseItem>> GetStvEmotesMetadata(int stre
             return returnList;
         }
 
-        public static async Task<List<TwitchEmote>> GetThirdPartyEmotes(List<Comment> comments, int streamerId, string cacheFolder, EmbeddedData embeddedData = null, bool bttv = true, bool ffz = true, bool stv = true, bool allowUnlistedEmotes = true, bool offline = false, CancellationToken cancellationToken = new())
+        public static async Task<List<TwitchEmote>> GetThirdPartyEmotes(List<Comment> comments, int streamerId, string cacheFolder, EmbeddedData embeddedData = null, bool bttv = true, bool ffz = true, bool stv = true, bool allowUnlistedEmotes = true, bool offline = false, IProgress<ProgressReport> progress = null, CancellationToken cancellationToken = default)
         {
             List<TwitchEmote> returnList = new List<TwitchEmote>();
             List<string> alreadyAdded = new List<string>();
@@ -384,21 +384,57 @@ private static async Task<List<EmoteResponseItem>> GetStvEmotesMetadata(int stre
 
             if (bttv)
             {
-                await FetchEmoteImages(comments, emoteDataResponse.BTTV, returnList, alreadyAdded, bttvFolder, cancellationToken);
+                try
+                {
+                    await FetchEmoteImages(comments, emoteDataResponse.BTTV, returnList, alreadyAdded, bttvFolder, cancellationToken);
+                }
+                catch (HttpRequestException e)
+                {
+                    if (progress is null)
+                    {
+                        throw new Exception($"BTTV returned HTTP {e.StatusCode}. See inner exception.", e);
+                    }
+
+                    progress.Report(new ProgressReport(ReportType.Log, $"BetterTTV returned HTTP {e.StatusCode}. BTTV emotes may not be present for this session."));
+                }
             }
 
             cancellationToken.ThrowIfCancellationRequested();
 
             if (ffz)
             {
-                await FetchEmoteImages(comments, emoteDataResponse.FFZ, returnList, alreadyAdded, ffzFolder, cancellationToken);
+                try
+                {
+                    await FetchEmoteImages(comments, emoteDataResponse.FFZ, returnList, alreadyAdded, ffzFolder, cancellationToken);
+                }
+                catch (HttpRequestException e)
+                {
+                    if (progress is null)
+                    {
+                        throw new Exception($"FFZ returned HTTP {e.StatusCode}. See inner exception.", e);
+                    }
+
+                    progress.Report(new ProgressReport(ReportType.Log, $"FFZ returned HTTP {e.StatusCode}. FFZ emotes may not be present for this session."));
+                }
             }
 
             cancellationToken.ThrowIfCancellationRequested();
 
             if (stv)
             {
-                await FetchEmoteImages(comments, emoteDataResponse.STV, returnList, alreadyAdded, stvFolder, cancellationToken);
+                try
+                {
+                    await FetchEmoteImages(comments, emoteDataResponse.STV, returnList, alreadyAdded, stvFolder, cancellationToken);
+                }
+                catch (HttpRequestException e)
+                {
+                    if (progress is null)
+                    {
+                        throw new Exception($"7TV returned HTTP {e.StatusCode}. See inner exception.", e);
+                    }
+
+                    progress.Report(new ProgressReport(ReportType.Log, $"7TV returned HTTP {e.StatusCode}. 7TV emotes may not be present for this session."));
+                }
             }
 
             return returnList;