Add fpost plugin

stdplugins/fpost.py

@@ -0,0 +1,27 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+import string
+
+from telethon import events
+from telethon.tl import types
+
+msg_cache = {}
+
+
+@borg.on(events.NewMessage(pattern=r"\.fpost\s+(.*)", outgoing=True))
+async def _(event):
+    await event.delete()
+    text = event.pattern_match.group(1)
+    destination = await event.get_input_chat()
+
+    for c in text.lower():
+        if c not in string.ascii_lowercase:
+            continue
+        if c not in msg_cache:
+            async for msg in borg.iter_messages(None, search=c):
+                if msg.raw_text.lower() == c and msg.media is None:
+                    msg_cache[c] = msg
+                    break
+        await borg.forward_messages(destination, msg_cache[c])