From 1e846b1f240c588c47e46d3d4f5f87f929fe474a Mon Sep 17 00:00:00 2001
From: Miklos Vajna <vmiklos@collabora.com>
Date: Fri, 5 Jun 2026 23:01:21 +0200
Subject: [PATCH] Add an initial weechat msgid script

Connect to matrirc with irssi, messages are prefixed with a tag like
"[abc] ", so "!r abc foo" can be sent to reply to that message, but the
same doesn't work in weechat.

This happens because for irssi, irssi/matrirc.pl.in provides this
functionality.

Start a weechat version of that in Python: if the server sends us a
msgid, then expose that to the user in a similar way.

Note that weechat automatically sends the message-tags capability to the
server, so we don't need a connect hook, just an irc_in_privmsg hook,
and that one seems to work for both channels and direct messages.
---
 weechat/matrirc_msgid.py | 47 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
 create mode 100644 weechat/matrirc_msgid.py

diff --git a/weechat/matrirc_msgid.py b/weechat/matrirc_msgid.py
new file mode 100644
index 0000000..c3c5e85
--- /dev/null
+++ b/weechat/matrirc_msgid.py
@@ -0,0 +1,47 @@
+import weechat
+import re
+
+SCRIPT_NAME = "matrirc_msgid"
+SCRIPT_AUTHOR = "matrirc"
+SCRIPT_VERSION = "0.1.1"
+SCRIPT_LICENSE = "GPL3"
+SCRIPT_DESC = "Prefix incoming matrirc messages with [id] from msgid tag"
+
+def msgid_modifier_cb(data, modifier, modifier_data, string):
+    # Match tags, prefix (optional), command, target, and body
+    # Format: @tags rest
+    if not string.startswith('@'):
+        return string
+
+    # Split tags and the rest of the message
+    parts = string.split(' ', 1)
+    if len(parts) < 2:
+        return string
+
+    tags_str, rest = parts[0], parts[1]
+
+    # Extract msgid tag
+    msgid_match = re.search(r'[;@]?msgid=([^; ]+)', tags_str)
+    if not msgid_match:
+        return string
+
+    msgid_raw = msgid_match.group(1)
+    # Unescape some common IRC tag characters
+    msgid = msgid_raw.replace('\\:', ';').replace('\\s', ' ').replace('\\\\', '\\').replace('\\r', '\r').replace('\\n', '\n')
+
+    # Find PRIVMSG and the body part
+    # Group 1: Everything up to and including the target and the following space
+    # Group 2: Optional colon before the body
+    # Group 3: The body itself
+    match = re.search(r'^(.*?\s+PRIVMSG\s+\S+\s+)(:?)(.*)$', rest)
+    if match:
+        prefix_and_target = match.group(1)
+        body = match.group(3)
+        # Reconstruct the message with the [id] prefix in the body.
+        return f"{tags_str} {prefix_and_target}:[{msgid}] {body}"
+
+    return string
+
+if weechat.register(SCRIPT_NAME, SCRIPT_AUTHOR, SCRIPT_VERSION, SCRIPT_LICENSE, SCRIPT_DESC, "", ""):
+    # Register the msgid modifier callback
+    weechat.hook_modifier("irc_in_privmsg", "msgid_modifier_cb", "")