1 files changed, 54 insertions, 0 deletions
diff --git a/scripts/ws-irc-bridge.py b/scripts/ws-irc-bridge.py
new file mode 100644
index 0000000..cca3375
--- /dev/null
+++ b/scripts/ws-irc-bridge.py
@@ -0,0 +1,54 @@
+#!/usr/bin/env python3
+"""
+WebSocket-to-IRC bridge for gamja anonymous web client.
+Each WebSocket connection gets its own TCP connection to ngircd.
+Listens on 127.0.0.1:7778, forwards to 127.0.0.1:6667.
+"""
+import asyncio
+import websockets
+
+WS_HOST  = "127.0.0.1"
+WS_PORT  = 7778
+IRC_HOST = "127.0.0.1"
+IRC_PORT = 6667
+
+
+async def bridge(ws):
+    try:
+        reader, writer = await asyncio.open_connection(IRC_HOST, IRC_PORT)
+    except OSError:
+        await ws.close()
+        return
+
+    async def ws_to_irc():
+        try:
+            async for msg in ws:
+                data = msg if isinstance(msg, bytes) else msg.encode()
+                writer.write(data)
+                await writer.drain()
+        except Exception:
+            pass
+        finally:
+            writer.close()
+
+    async def irc_to_ws():
+        try:
+            while True:
+                data = await reader.read(4096)
+                if not data:
+                    break
+                await ws.send(data)
+        except Exception:
+            pass
+        finally:
+            await ws.close()
+
+    await asyncio.gather(ws_to_irc(), irc_to_ws())
+
+
+async def main():
+    async with websockets.serve(bridge, WS_HOST, WS_PORT):
+        await asyncio.Future()
+
+
+asyncio.run(main())