dunkirk.sh
this repo has no description
feat: format both sides
+1
-1
package.json
+1
-1
package.json
+156
-137
src/index.ts
+156
-137
src/index.ts
···
1
1
import * as irc from "irc";
2
-
import { SlackAPIClient, SlackApp } from "slack-edge";
2
+
import { SlackApp } from "slack-edge";
3
3
import { version } from "../package.json";
4
4
import { channelMappings, userMappings } from "./db";
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+
import { parseSlackMarkdown, parseIRCFormatting } from "./parser";
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import type { CachetUser } from "./types";
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const missingEnvVars = [];
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if (!process.env.SLACK_BOT_TOKEN) missingEnvVars.push("SLACK_BOT_TOKEN");
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if (!process.env.SLACK_SIGNING_SECRET)
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missingEnvVars.push("SLACK_SIGNING_SECRET");
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missingEnvVars.push("SLACK_SIGNING_SECRET");
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if (!process.env.ADMINS) missingEnvVars.push("ADMINS");
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if (!process.env.IRC_NICK) missingEnvVars.push("IRC_NICK");
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if (missingEnvVars.length > 0) {
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-
throw new Error(
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`Missing required environment variables: ${missingEnvVars.join(", ")}`,
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);
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+
throw new Error(
17
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`Missing required environment variables: ${missingEnvVars.join(", ")}`,
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);
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}
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const slackApp = new SlackApp({
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env: {
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SLACK_BOT_TOKEN: process.env.SLACK_BOT_TOKEN as string,
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SLACK_SIGNING_SECRET: process.env.SLACK_SIGNING_SECRET as string,
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SLACK_LOGGING_LEVEL: "INFO",
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},
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startLazyListenerAfterAck: true,
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env: {
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SLACK_BOT_TOKEN: process.env.SLACK_BOT_TOKEN as string,
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SLACK_SIGNING_SECRET: process.env.SLACK_SIGNING_SECRET as string,
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SLACK_LOGGING_LEVEL: "INFO",
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},
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startLazyListenerAfterAck: true,
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});
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const slackClient = slackApp.client;
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// Get bot user ID
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let botUserId: string | undefined;
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slackClient.auth.test({
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token: process.env.SLACK_BOT_TOKEN,
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-
}).then((result) => {
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botUserId = result.user_id;
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console.log(`Bot user ID: ${botUserId}`);
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});
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slackClient.auth
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.test({
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token: process.env.SLACK_BOT_TOKEN,
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})
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.then((result) => {
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botUserId = result.user_id;
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console.log(`Bot user ID: ${botUserId}`);
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});
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// IRC client setup
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const ircClient = new irc.Client(
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"irc.hackclub.com",
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process.env.IRC_NICK || "slackbridge",
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{
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port: 6667,
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autoRejoin: true,
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autoConnect: true,
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channels: [],
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secure: false,
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userName: process.env.IRC_NICK,
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realName: "Slack IRC Bridge",
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},
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+
"irc.hackclub.com",
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process.env.IRC_NICK || "slackbridge",
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{
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port: 6667,
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autoRejoin: true,
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autoConnect: true,
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channels: [],
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secure: false,
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userName: process.env.IRC_NICK,
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realName: "Slack IRC Bridge",
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},
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);
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// Clean up IRC connection on hot reload or exit
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process.on("beforeExit", () => {
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ircClient.disconnect("Reloading", () => {
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console.log("IRC client disconnected");
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});
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});
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+
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// Join all mapped IRC channels on connect
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ircClient.addListener("registered", async () => {
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console.log("Connected to IRC server");
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const mappings = channelMappings.getAll();
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for (const mapping of mappings) {
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ircClient.join(mapping.irc_channel);
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}
66
+
console.log("Connected to IRC server");
67
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const mappings = channelMappings.getAll();
68
+
for (const mapping of mappings) {
69
+
ircClient.join(mapping.irc_channel);
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}
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});
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ircClient.addListener("join", (channel: string, nick: string) => {
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-
if (nick === process.env.IRC_NICK) {
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console.log(`Joined IRC channel: ${channel}`);
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-
}
74
+
if (nick === process.env.IRC_NICK) {
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console.log(`Joined IRC channel: ${channel}`);
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+
}
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});
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ircClient.addListener(
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"message",
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async (nick: string, to: string, text: string) => {
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if (nick === process.env.IRC_NICK) return;
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-
if (nick === "****") return;
80
+
"message",
81
+
async (nick: string, to: string, text: string) => {
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// Ignore messages from our own bot (with or without numbers suffix)
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+
const botNickPattern = new RegExp(`^${process.env.IRC_NICK}\\d*$`);
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+
if (botNickPattern.test(nick)) return;
85
+
if (nick === "****") return;
73
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-
// Find Slack channel mapping for this IRC channel
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-
const mapping = channelMappings.getByIrcChannel(to);
76
-
if (!mapping) return;
87
+
// Find Slack channel mapping for this IRC channel
88
+
const mapping = channelMappings.getByIrcChannel(to);
89
+
if (!mapping) return;
77
90
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-
// Check if this IRC nick is mapped to a Slack user
79
-
const userMapping = userMappings.getByIrcNick(nick);
91
+
// Check if this IRC nick is mapped to a Slack user
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+
const userMapping = userMappings.getByIrcNick(nick);
80
93
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-
const displayName = `${nick} <irc>`;
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-
let iconUrl: string | undefined;
94
+
const displayName = `${nick} <irc>`;
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let iconUrl: string | undefined;
83
96
84
-
if (userMapping) {
85
-
try {
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-
iconUrl = `https://cachet.dunkirk.sh/users/${userMapping.slack_user_id}/r`;
87
-
} catch (error) {
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-
console.error("Error fetching user info:", error);
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-
}
90
-
}
97
+
if (userMapping) {
98
+
try {
99
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iconUrl = `https://cachet.dunkirk.sh/users/${userMapping.slack_user_id}/r`;
100
+
} catch (error) {
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console.error("Error fetching user info:", error);
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+
}
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+
}
91
104
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-
try {
93
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await slackClient.chat.postMessage({
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token: process.env.SLACK_BOT_TOKEN,
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channel: mapping.slack_channel_id,
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text: text,
97
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username: displayName,
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icon_url: iconUrl,
99
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unfurl_links: false,
100
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unfurl_media: false,
101
-
});
102
-
} catch (error) {
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console.error("Error posting to Slack:", error);
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-
}
105
-
},
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+
try {
106
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await slackClient.chat.postMessage({
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token: process.env.SLACK_BOT_TOKEN,
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channel: mapping.slack_channel_id,
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text: parseIRCFormatting(text),
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username: displayName,
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icon_url: iconUrl,
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unfurl_links: false,
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unfurl_media: false,
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});
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console.log(`IRC → Slack: <${nick}> ${text}`);
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} catch (error) {
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console.error("Error posting to Slack:", error);
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}
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},
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);
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ircClient.addListener("error", (error: string) => {
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console.error("IRC error:", error);
123
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console.error("IRC error:", error);
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});
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126
// Slack event handlers
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slackApp.event("message", async ({ payload }) => {
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-
if (payload.subtype) return;
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if (payload.bot_id) return;
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if (payload.user === botUserId) return;
128
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if (payload.subtype) return;
129
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if (payload.bot_id) return;
130
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if (payload.user === botUserId) return;
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131
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// Find IRC channel mapping for this Slack channel
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const mapping = channelMappings.getBySlackChannel(payload.channel);
120
-
if (!mapping) {
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console.log(
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`No IRC channel mapping found for Slack channel ${payload.channel}`,
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);
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slackClient.conversations.leave({
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channel: payload.channel,
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});
127
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return;
128
-
}
132
+
// Find IRC channel mapping for this Slack channel
133
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const mapping = channelMappings.getBySlackChannel(payload.channel);
134
+
if (!mapping) {
135
+
console.log(
136
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`No IRC channel mapping found for Slack channel ${payload.channel}`,
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);
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slackClient.conversations.leave({
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channel: payload.channel,
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});
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return;
142
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}
129
143
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-
try {
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const userInfo = await slackClient.users.info({
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token: process.env.SLACK_BOT_TOKEN,
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user: payload.user,
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});
144
+
try {
145
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const userInfo = await slackClient.users.info({
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token: process.env.SLACK_BOT_TOKEN,
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user: payload.user,
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});
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149
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// Check for user mapping, otherwise use Slack name
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const userMapping = userMappings.getBySlackUser(payload.user);
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const username =
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userMapping?.irc_nick ||
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userInfo.user?.real_name ||
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userInfo.user?.name ||
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"Unknown";
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// Parse Slack mentions and replace with display names
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let messageText = payload.text;
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const mentionRegex = /<@(U[A-Z0-9]+)>/g;
147
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const mentions = Array.from(messageText.matchAll(mentionRegex));
148
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for (const match of mentions) {
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const userId = match[1];
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try {
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const response = await fetch(`https://cachet.dunkirk.sh/users/${userId}`);
153
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if (response.ok) {
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const data = await response.json();
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messageText = messageText.replace(match[0], `@${data.displayName}`);
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}
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} catch (error) {
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console.error(`Error fetching user ${userId} from cachet:`, error);
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}
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}
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162
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const message = `<${username}> ${messageText}`;
150
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// Check for user mapping, otherwise use Slack name
151
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const userMapping = userMappings.getBySlackUser(payload.user);
152
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const username =
153
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userMapping?.irc_nick ||
154
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userInfo.user?.real_name ||
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userInfo.user?.name ||
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"Unknown";
163
157
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console.log(`Sending to IRC ${mapping.irc_channel}: ${message}`);
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ircClient.say(mapping.irc_channel, message);
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} catch (error) {
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console.error("Error handling Slack message:", error);
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}
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// Parse Slack mentions and replace with display names
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let messageText = payload.text;
160
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const mentionRegex = /<@(U[A-Z0-9]+)>/g;
161
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const mentions = Array.from(messageText.matchAll(mentionRegex));
162
+
163
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for (const match of mentions) {
164
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const userId = match[1];
165
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try {
166
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const response = await fetch(
167
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`https://cachet.dunkirk.sh/users/${userId}`,
168
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);
169
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if (response.ok) {
170
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const data = await response.json() as CachetUser;
171
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messageText = messageText.replace(match[0], `@${data.displayName}`);
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}
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} catch (error) {
174
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console.error(`Error fetching user ${userId} from cachet:`, error);
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}
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}
177
+
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// Parse Slack markdown formatting
179
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messageText = parseSlackMarkdown(messageText);
180
+
181
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const message = `<${username}> ${messageText}`;
182
+
183
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ircClient.say(mapping.irc_channel, message);
184
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console.log(`Slack → IRC: ${message}`);
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} catch (error) {
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console.error("Error handling Slack message:", error);
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}
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});
170
189
171
190
export default {
172
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port: process.env.PORT || 3000,
173
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async fetch(request: Request) {
174
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const url = new URL(request.url);
175
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const path = url.pathname;
191
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port: process.env.PORT || 3000,
192
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async fetch(request: Request) {
193
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const url = new URL(request.url);
194
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const path = url.pathname;
176
195
177
-
switch (path) {
178
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case "/":
179
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return new Response(`Hello World from irc-slack-bridge@${version}`);
180
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case "/health":
181
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return new Response("OK");
182
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case "/slack":
183
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return slackApp.run(request);
184
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default:
185
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return new Response("404 Not Found", { status: 404 });
186
-
}
187
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},
196
+
switch (path) {
197
+
case "/":
198
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return new Response(`Hello World from irc-slack-bridge@${version}`);
199
+
case "/health":
200
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return new Response("OK");
201
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case "/slack":
202
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return slackApp.run(request);
203
+
default:
204
+
return new Response("404 Not Found", { status: 404 });
205
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}
206
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},
188
207
};
189
208
190
209
console.log(
191
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`🚀 Server Started in ${Bun.nanoseconds() / 1000000} milliseconds on version: ${version}!\n\n----------------------------------\n`,
210
+
`🚀 Server Started in ${Bun.nanoseconds() / 1000000} milliseconds on version: ${version}!\n\n----------------------------------\n`,
192
211
);
193
212
console.log(
194
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`Connecting to IRC: irc.hackclub.com:6667 as ${process.env.IRC_NICK}`,
213
+
`Connecting to IRC: irc.hackclub.com:6667 as ${process.env.IRC_NICK}`,
195
214
);
196
215
console.log(`Channel mappings: ${channelMappings.getAll().length}`);
197
216
console.log(`User mappings: ${userMappings.getAll().length}`);
+89
src/parser.ts
+89
src/parser.ts
···
1
+
/**
2
+
* Parse Slack mrkdwn formatting and convert to IRC-friendly plain text
3
+
*/
4
+
export function parseSlackMarkdown(text: string): string {
5
+
let parsed = text;
6
+
7
+
// Replace channel mentions <#C123ABC|channel-name> or <#C123ABC>
8
+
parsed = parsed.replace(/<#[A-Z0-9]+\|([^>]+)>/g, "#$1");
9
+
parsed = parsed.replace(/<#[A-Z0-9]+>/g, "#channel");
10
+
11
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// Replace links <http://example.com|text> or <http://example.com>
12
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parsed = parsed.replace(/<(https?:\/\/[^|>]+)\|([^>]+)>/g, "$2 ($1)");
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parsed = parsed.replace(/<(https?:\/\/[^>]+)>/g, "$1");
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+
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// Replace mailto links <mailto:email|text>
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parsed = parsed.replace(/<mailto:([^|>]+)\|([^>]+)>/g, "$2 <$1>");
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parsed = parsed.replace(/<mailto:([^>]+)>/g, "$1");
18
+
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// Replace special mentions
20
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parsed = parsed.replace(/<!here>/g, "@here");
21
+
parsed = parsed.replace(/<!channel>/g, "@channel");
22
+
parsed = parsed.replace(/<!everyone>/g, "@everyone");
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+
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// Replace user group mentions <!subteam^GROUP_ID|handle>
25
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parsed = parsed.replace(/<!subteam\^[A-Z0-9]+\|([^>]+)>/g, "@$1");
26
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parsed = parsed.replace(/<!subteam\^[A-Z0-9]+>/g, "@group");
27
+
28
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// Date formatting - just use fallback text
29
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parsed = parsed.replace(/<!date\^[0-9]+\^[^|]+\|([^>]+)>/g, "$1");
30
+
31
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// Replace Slack bold *text* with IRC bold \x02text\x02
32
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parsed = parsed.replace(/\*((?:[^\*]|\\\*)+)\*/g, "\x02$1\x02");
33
+
34
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// Replace Slack italic _text_ with IRC italic \x1Dtext\x1D
35
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parsed = parsed.replace(/_((?:[^_]|\\_)+)_/g, "\x1D$1\x1D");
36
+
37
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// Replace Slack strikethrough ~text~ with plain text (IRC doesn't support strikethrough well)
38
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parsed = parsed.replace(/~((?:[^~]|\\~)+)~/g, "$1");
39
+
40
+
// Replace code blocks ```code``` with plain text
41
+
parsed = parsed.replace(/```([^`]+)```/g, "$1");
42
+
43
+
// Replace inline code `code` with plain text
44
+
parsed = parsed.replace(/`([^`]+)`/g, "$1");
45
+
46
+
// Handle block quotes - prefix with >
47
+
parsed = parsed.replace(/^>/gm, ">");
48
+
49
+
// Unescape HTML entities
50
+
parsed = parsed.replace(/&/g, "&");
51
+
parsed = parsed.replace(/</g, "<");
52
+
parsed = parsed.replace(/>/g, ">");
53
+
54
+
return parsed;
55
+
}
56
+
57
+
/**
58
+
* Parse IRC formatting codes and convert to Slack mrkdwn
59
+
*/
60
+
export function parseIRCFormatting(text: string): string {
61
+
let parsed = text;
62
+
63
+
// IRC color codes - strip them (Slack doesn't support colors in the same way)
64
+
// \x03 followed by optional color codes
65
+
parsed = parsed.replace(/\x03(\d{1,2}(,\d{1,2})?)?/g, "");
66
+
67
+
// IRC bold \x02text\x02 -> Slack bold *text*
68
+
parsed = parsed.replace(/\x02([^\x02]*)\x02/g, "*$1*");
69
+
70
+
// IRC italic \x1D text\x1D -> Slack italic _text_
71
+
parsed = parsed.replace(/\x1D([^\x1D]*)\x1D/g, "_$1_");
72
+
73
+
// IRC underline \x1F text\x1F -> Slack doesn't have underline, use italic instead
74
+
parsed = parsed.replace(/\x1F([^\x1F]*)\x1F/g, "_$1_");
75
+
76
+
// IRC reverse/inverse \x16 - strip it (Slack doesn't support)
77
+
parsed = parsed.replace(/\x16/g, "");
78
+
79
+
// IRC reset \x0F - strip it
80
+
parsed = parsed.replace(/\x0F/g, "");
81
+
82
+
// Escape special Slack characters that would be interpreted as formatting
83
+
parsed = parsed.replace(/&/g, "&");
84
+
parsed = parsed.replace(/</g, "<");
85
+
parsed = parsed.replace(/>/g, ">");
86
+
87
+
return parsed;
88
+
}
89
+