sendfile works

see #25

Behaver.cs

@@ -224,4 +224,15 @@ public class Behaver
 
         return await iprotocol.SendFile(channel, path, accompanyingText);
     }
+    public async Task<int> SendFile(Guid channelId, string base64dData, string filename, string accompanyingText)
+    {
+        var channel = Rememberer.ChannelDetail(channelId);
+        if (channel == null)
+            return 404;
+        var iprotocol = fetchInterface(channel);
+        if (iprotocol == null)
+            return 404;
+
+        return await iprotocol.SendFile(channel, base64dData, filename, accompanyingText);
+    }
 }

ProtocolInterfaces/DiscordInterface/DiscordInterface.cs

@@ -27,7 +27,7 @@ public class DiscordInterface : ProtocolInterface
     private bool eventsSignedUp = false;
     private static readonly SemaphoreSlim discordChannelSetup = new(1, 1);
     private Channel protocolAsChannel;
-    public override Channel SelfChannel { get => protocolAsChannel;}
+    public override Channel SelfChannel { get => protocolAsChannel; }
 
     public async Task Init(string config)
     {
@@ -434,7 +434,7 @@ public class DiscordInterface : ProtocolInterface
             return 503;
         }
     }
-    public override async Task<int> SendFile(Channel channel, string path, string accompanyingText)
+    public override async Task<int> SendFile(Channel channel, string base64dData, string filename, string accompanyingText)
     {
         var dcCh = await client.GetChannelAsync(ulong.Parse(channel.ExternalId));
         if (dcCh == null)
@@ -444,7 +444,10 @@ public class DiscordInterface : ProtocolInterface
 
         if (dcCh is IMessageChannel msgChannel)
         {
-            await msgChannel.SendFileAsync(path, TruncateText(accompanyingText, channel.MaxTextChars));
+            using (var ms = new MemoryStream(Convert.FromBase64String(base64dData)))
+            {
+                await msgChannel.SendFileAsync(ms, filename, TruncateText(accompanyingText, channel.MaxTextChars));
+            }
             return 200;
         }
         else

ProtocolInterfaces/ProtocolInterface.cs

@@ -7,7 +7,16 @@ public abstract class ProtocolInterface
     public static string Protocol { get; }
     public abstract Channel SelfChannel { get; }
     public abstract Task<int> SendMessage(Channel channel, string text);
-    public abstract Task<int> SendFile(Channel channel, string path, string accompanyingText);
+    public virtual async Task<int> SendFile(Channel channel, string path, string accompanyingText)
+    {
+        if (!File.Exists(path))
+        {
+            return 404;
+        }
+        var fstring = Convert.ToBase64String(File.ReadAllBytes(path));
+        return await SendFile(channel, fstring, Path.GetFileName(path), accompanyingText);
+    }
+    public abstract Task<int> SendFile(Channel channel, string base64dData, string filename, string accompanyingText);
     public abstract Task<int> React(Message message, string reaction);
     public abstract Task<int> Reply(Message message, string text);
 }

ProtocolInterfaces/TwitchInterface/TwitchInterface.cs

@@ -295,7 +295,7 @@ public class TwitchInterface : ProtocolInterface
         Task.Run(() => { client.SendMessage(channel.ExternalId, text); });
         return 200;
     }
-    public override async Task<int> SendFile(Channel channel, string path, string accompanyingText)
+    public override async Task<int> SendFile(Channel channel, string base64dData, string filename, string accompanyingText)
     {
         return 405;
     }

WebInterface/Controllers/api/InternalAPIProtocolController.cs

@@ -45,15 +45,18 @@ public class InternalAPIProtocolController : ControllerBase
 
     public class extraSpecialObjectReadGlorifiedTupleFor_SendFile
     {
-        public Guid channelId; public string path; public string accompanyingText;
+        public Guid channelId;
+        public string accompanyingText;
+        public string base64dData;
+        public string filename;
     }
     [HttpPost]
     [Route("SendFile")]
     [Produces("application/json")]
     public IActionResult SendFile([FromBody] extraSpecialObjectReadGlorifiedTupleFor_SendFile param)
     {
-        Console.WriteLine($"SendFile- {param.channelId}, {param.path}, {param.accompanyingText}");
-        return StatusCode(Behaver.Instance.SendFile(param.channelId, param.path, param.accompanyingText).Result);
+        Console.WriteLine($"SendFile- {param.channelId}, {param.filename} (base64'd, {param.base64dData?.Length} chars), {param.accompanyingText}");
+        return StatusCode(Behaver.Instance.SendFile(param.channelId, param.base64dData, param.filename, param.accompanyingText).Result);
     }
 
     public class extraSpecialObjectReadGlorifiedTupleFor_ReactToMessage