IRCv3 in Practice: Build a Modern IRC Bot with Capability Negotiation, SASL and Message Tags in Python
Hôm nay IRCv3 lên top Hacker News với hơn 300 điểm. Nhiều người nghĩ IRC là giao thức của thập niên 90 và đã "chết" từ khi có Slack hay Discord. Thực tế thì cộng đồng open source vẫn dùng IRC rất nhiều: Libera.Chat, OFTC, các kênh của Debian, Arch, Python... Điều ít người biết là IRC đã được "hiện đại hóa" khá kỹ qua bộ spec IRCv3 . Nó có message tags, timestamp từ phía server, SASL…
IRCv3 has recently gained traction on Hacker News, garnering over 300 points. While many view IRC as a relic of the 90s, largely supplanted by modern communication tools like Slack and Discord, the reality is quite the opposite. The open-source community continues to rely heavily on IRC, with prominent communities such as Libera.Chat, OFTC, and various channels for Debian, Arch, Python, and more.
What is less known is that IRC has been significantly modernized through the IRCv3 specification. This specification introduces features such as message tags, server timestamps, SASL authentication, chat history, and maintains backward compatibility with older clients. In this article, I will demonstrate how to build a modern Python asyncio IRC bot leveraging capability negotiation, SASL, and message tags. The complete code spans around 60 lines and avoids external libraries.
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