Auto-detect mimetype from file's content

index.mjs

@@ -22,6 +22,7 @@ import { htmlToText } from "html-to-text";
 import axios from "axios";
 import { AtpAgent, RichText } from '@atproto/api'
 import { v4 as uuid } from 'uuid';
+import { fileTypeFromBuffer } from 'file-type';
 
 const historyFile = process.env.HISTORY_FILE || '.history';
 let history = [];
@@ -90,12 +91,14 @@ if (existsSync(historyFile)){
 const bskyPost = async (text, media = []) => {
     let uploadedMedia = [];
     for (let m of media){
-        let mime = `${m.url}`.split('.').pop();
-        mime = mime.toLowerCase();
-        mime = mime === 'jpg'?'jpeg':mime;
+        // let mime = `${m.url}`.split('.').pop();
+        // mime = mime.toLowerCase();
+        // mime = mime === 'jpg'?'jpeg':mime;
         const fileBuffer = Buffer.from(readFileSync(m.data));
+        const { ext, mimeT } = await fileTypeFromBuffer(fileBuffer);
         let uploadResult = await bsky.uploadBlob(fileBuffer, {
-            encoding: `image/${mime}`
+            // encoding: `image/${mime}`
+            encoding: mimeT
         });
         if (uploadResult.success){
             uploadedMedia.push({
@@ -117,7 +120,6 @@ const bskyPost = async (text, media = []) => {
         createdAt: new Date().toISOString()
     };
     if (uploadedMedia.length > 0){
-        // TODO: Add aspect ratio to images
         post.embed = {
             "$type": "app.bsky.embed.images",
             images: uploadedMedia
@@ -191,7 +193,9 @@ client.get(`/accounts/${process.env.MASTODON_ID}/statuses`, {
                 }
             }else{
                 // is boosted post
-                // TODO: Handle boosts
+                let text = status.reblog.url;
+                bskyPost(text, []);
+                appendFileSync(historyFile, `\n${status.id}`);
             }
         }
     }