fix(media): [closes #311] don't attempt to render unsupported media

src/components/Message/InlineMedia.tsx

@@ -17,28 +17,59 @@ interface InlineFileProps {
   file: TorrentFile
 }
 
+// NOTE: These filename extensions are copied from render-media, the upstream
+// library used to embed media files:
+// https://github.com/feross/render-media/blob/a445b2ab90fcd4a248552d32027b2bc6a02600c8/index.js#L15-L72
+const supportedImageExtensions = [
+  '.bmp',
+  '.gif',
+  '.jpeg',
+  '.jpg',
+  '.png',
+  '.svg',
+]
+
+const supportedAudioExtensions = ['.aac', '.oga', '.ogg', '.wav', '.flac']
+
+const supportedMediaExtensions = [
+  ...supportedImageExtensions,
+  ...supportedAudioExtensions,
+]
+
 export const InlineFile = ({ file }: InlineFileProps) => {
   const containerRef = useRef(null)
   const [didRenderingMediaFail, setDidRenderingMediaFail] = useState(false)
+  const [isMediaSupported, setIsMediaSupported] = useState(true)
   const shellContext = useContext(ShellContext)
 
   useEffect(() => {
-    ;(async () => {
-      const { current: container } = containerRef
+    const { current: container } = containerRef
 
-      if (!container) return
+    if (!container) return
 
-      try {
-        file.appendTo(container)
-      } catch (e) {
-        console.error(e)
-        setDidRenderingMediaFail(true)
-      }
-    })()
+    const { name } = file
+    const fileNameExtension = name.split('.').pop() ?? ''
+
+    if (!supportedMediaExtensions.includes(`.${fileNameExtension}`)) {
+      setIsMediaSupported(false)
+      return
+    }
+
+    try {
+      file.appendTo(container)
+    } catch (e) {
+      console.error(e)
+      setDidRenderingMediaFail(true)
+    }
   }, [file, containerRef, shellContext.roomId])
 
   return (
     <Box ref={containerRef} sx={{ '& img': { maxWidth: '100%' } }}>
+      {!isMediaSupported && (
+        <Typography sx={{ fontStyle: 'italic' }}>
+          Media preview not supported
+        </Typography>
+      )}
       {didRenderingMediaFail && (
         <Typography sx={{ fontStyle: 'italic' }}>
           Media failed to render