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feat: support image prompts across IM channels

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xmanrui 2026-08-19 02:56:14 +08:00
parent 99a877c640
commit 65c842c045
40 changed files with 3806 additions and 274 deletions
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27
src/channels/slack/slack-runtime.mjs
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@ -5,6 +5,7 @@ import { createSlackBridgeStatus, SlackHarnessBridge } from './slack-bridge.mjs'
const RECONNECT_DELAYS_MS = Object.freeze([1_000, 3_000, 5_000, 10_000, 30_000]);
const SLACK_MESSAGE_LIMIT = 38_000;
const SLACK_STREAM_CHUNK_LIMIT = 11_000;
const IMAGE_MEDIA_TYPES = new Set(['image/jpeg', 'image/png', 'image/webp', 'image/gif']);
function addSocketListener(socket, event, listener) {
if (typeof socket.addEventListener === 'function') socket.addEventListener(event, listener);
@ -42,13 +43,28 @@ function stripBotMention(value, botUserId) {
.trim();
}
export function normalizeSlackEvent(payload, botUserId) {
function slackImageSource(file, loadFile) {
const mediaType = typeof file?.mimetype === 'string' ? file.mimetype.toLowerCase() : '';
const url = typeof file?.url_private_download === 'string' && file.url_private_download
? file.url_private_download : file?.url_private;
if (!IMAGE_MEDIA_TYPES.has(mediaType) || typeof url !== 'string' || !url) return null;
return {
name: typeof file.name === 'string' ? file.name : undefined,
mediaType,
size: Number.isSafeInteger(file.size) && file.size >= 0 ? file.size : undefined,
load: (options) => loadFile(url, options),
};
}
export function normalizeSlackEvent(payload, botUserId, { loadFile = async () => {
throw new Error('Slack file downloader is unavailable');
} } = {}) {
const event = payload?.event;
if (!event || !payload?.event_id || !event.channel || !event.user || !event.ts) return null;
const direct = event.type === 'message' && event.channel_type === 'im';
const mentioned = event.type === 'app_mention';
if (!direct && !mentioned) return null;
if (event.subtype || event.bot_id || event.app_id) return null;
if ((event.subtype && event.subtype !== 'file_share') || event.bot_id || event.app_id) return null;
const threadTs = String(event.thread_ts ?? event.ts);
return {
messageId: String(payload.event_id),
@ -57,6 +73,9 @@ export function normalizeSlackEvent(payload, botUserId) {
kind: direct ? 'direct' : 'group',
conversationId: direct ? String(event.channel) : `${event.channel}:${threadTs}`,
content: stripBotMention(event.text ?? '', botUserId),
images: Array.isArray(event.files)
? event.files.map((file) => slackImageSource(file, loadFile)).filter(Boolean)
: [],
addressed: direct || mentioned,
replyTarget: {
channelId: String(event.channel),
@ -389,7 +408,9 @@ export class SlackRuntime {
if (packet.type !== 'events_api' || packet.payload?.type !== 'event_callback') return;
if (this.#appId && packet.payload.api_app_id
&& packet.payload.api_app_id !== this.#appId) return;
const message = normalizeSlackEvent(packet.payload, this.#config.platformId.split(':')[1]);
const message = normalizeSlackEvent(packet.payload, this.#config.platformId.split(':')[1], {
loadFile: (url, options) => this.#api.downloadFile({ url, ...options }),
});
const bridge = this.#bridge;
if (message && bridge) {
void bridge.accept(message).catch((error) => {