1 files changed, 33 insertions, 0 deletions
diff --git a/LibMatrix/LibMatrixNetworkException.cs b/LibMatrix/LibMatrixNetworkException.cs
new file mode 100644
index 0000000..7be0f4e
--- /dev/null
+++ b/LibMatrix/LibMatrixNetworkException.cs
@@ -0,0 +1,33 @@
+using System.Diagnostics.CodeAnalysis;
+using System.Text.Json.Serialization;
+using ArcaneLibs.Extensions;
+// ReSharper disable MemberCanBePrivate.Global
+
+namespace LibMatrix;
+
+public class LibMatrixNetworkException : Exception {
+    public LibMatrixNetworkException() : base() { }
+    public LibMatrixNetworkException(Exception httpRequestException) : base("A network error occurred", httpRequestException) { }
+
+    [JsonPropertyName("errcode")]
+    public required string ErrorCode { get; set; }
+
+    [JsonPropertyName("error")]
+    public required string Error { get; set; }
+    
+    public object GetAsObject() => new { errcode = ErrorCode, error = Error };
+    public string GetAsJson() => GetAsObject().ToJson(ignoreNull: true);
+
+    public override string Message =>
+        $"{ErrorCode}: {ErrorCode switch {
+            ErrorCodes.RLM_NET_UNKNOWN_HOST => "The specified host could not be found.",
+            ErrorCodes.RLM_NET_INVALID_REMOTE_CERTIFICATE => "The remote server's TLS certificate is invalid or could not be verified.",
+            _ => $"Unknown error: {GetAsObject().ToJson(ignoreNull: true)}"
+        }}\nError: {Error}";
+
+    [SuppressMessage("ReSharper", "InconsistentNaming", Justification = "Follows spec naming")]
+    public static class ErrorCodes {
+        public const string RLM_NET_UNKNOWN_HOST = "RLM_NET_UNKNOWN_HOST";
+        public const string RLM_NET_INVALID_REMOTE_CERTIFICATE = "RLM_NET_INVALID_REMOTE_CERTIFICATE";
+    }
+}
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