Better starterpack embed (#4659)

src/lib/link-meta/link-meta.ts

@@ -1,8 +1,10 @@
 import {BskyAgent} from '@atproto/api'
-import {isBskyAppUrl} from '../strings/url-helpers'
-import {extractBskyMeta} from './bsky'
+
 import {LINK_META_PROXY} from 'lib/constants'
 import {getGiphyMetaUri} from 'lib/strings/embed-player'
+import {parseStarterPackUri} from 'lib/strings/starter-pack'
+import {isBskyAppUrl} from '../strings/url-helpers'
+import {extractBskyMeta} from './bsky'
 
 export enum LikelyType {
   HTML,
@@ -28,7 +30,7 @@ export async function getLinkMeta(
   url: string,
   timeout = 15e3,
 ): Promise<LinkMeta> {
-  if (isBskyAppUrl(url)) {
+  if (isBskyAppUrl(url) && !parseStarterPackUri(url)) {
     return extractBskyMeta(agent, url)
   }
 

src/lib/link-meta/resolve-short-link.ts

@@ -0,0 +1,23 @@
+import {logger} from '#/logger'
+import {startUriToStarterPackUri} from 'lib/strings/starter-pack'
+
+export async function resolveShortLink(shortLink: string) {
+  const controller = new AbortController()
+  const to = setTimeout(() => controller.abort(), 2e3)
+
+  try {
+    const res = await fetch(shortLink, {
+      method: 'GET',
+      signal: controller.signal,
+    })
+    if (res.status !== 200) {
+      return shortLink
+    }
+    return startUriToStarterPackUri(res.url)
+  } catch (e: unknown) {
+    logger.error('Failed to resolve short link', {safeMessage: e})
+    return null
+  } finally {
+    clearTimeout(to)
+  }
+}

src/lib/strings/starter-pack.ts

@@ -99,3 +99,7 @@ export function createStarterPackUri({
 }): string | null {
   return new AtUri(`at://${did}/app.bsky.graph.starterpack/${rkey}`).toString()
 }
+
+export function startUriToStarterPackUri(uri: string) {
+  return uri.replace('/start/', '/starter-pack/')
+}

src/lib/strings/url-helpers.ts

@@ -2,6 +2,7 @@ import {AtUri} from '@atproto/api'
 import psl from 'psl'
 import TLDs from 'tlds'
 
+import {logger} from '#/logger'
 import {BSKY_SERVICE} from 'lib/constants'
 import {isInvalidHandle} from 'lib/strings/handles'
 
@@ -285,3 +286,13 @@ export function createBskyAppAbsoluteUrl(path: string): string {
   const sanitizedPath = path.replace(BSKY_APP_HOST, '').replace(/^\/+/, '')
   return `${BSKY_APP_HOST.replace(/\/$/, '')}/${sanitizedPath}`
 }
+
+export function isShortLink(url: string): boolean {
+  try {
+    const urlp = new URL(url)
+    return urlp.host === 'go.bsky.app'
+  } catch (e) {
+    logger.error('Failed to parse possible short link', {safeMessage: e})
+    return false
+  }
+}

src/view/com/composer/useExternalLinkFetch.ts

@@ -12,11 +12,13 @@ import {
   getPostAsQuote,
 } from 'lib/link-meta/bsky'
 import {getLinkMeta} from 'lib/link-meta/link-meta'
+import {resolveShortLink} from 'lib/link-meta/resolve-short-link'
 import {downloadAndResize} from 'lib/media/manip'
 import {
   isBskyCustomFeedUrl,
   isBskyListUrl,
   isBskyPostUrl,
+  isShortLink,
 } from 'lib/strings/url-helpers'
 import {ImageModel} from 'state/models/media/image'
 import {ComposerOpts} from 'state/shell/composer'
@@ -94,6 +96,17 @@ export function useExternalLinkFetch({
             setExtLink(undefined)
           },
         )
+      } else if (isShortLink(extLink.uri)) {
+        if (isShortLink(extLink.uri)) {
+          resolveShortLink(extLink.uri).then(res => {
+            if (res && res !== extLink.uri) {
+              setExtLink({
+                uri: res,
+                isLoading: true,
+              })
+            }
+          })
+        }
       } else {
         getLinkMeta(agent, extLink.uri).then(meta => {
           if (aborted) {

src/view/com/util/post-embeds/ExternalLinkEmbed.tsx

@@ -2,11 +2,17 @@ import React, {useCallback} from 'react'
 import {StyleProp, View, ViewStyle} from 'react-native'
 import {Image} from 'expo-image'
 import {AppBskyEmbedExternal} from '@atproto/api'
+import {msg} from '@lingui/macro'
+import {useLingui} from '@lingui/react'
 
 import {usePalette} from 'lib/hooks/usePalette'
 import {useWebMediaQueries} from 'lib/hooks/useWebMediaQueries'
 import {shareUrl} from 'lib/sharing'
 import {parseEmbedPlayerFromUrl} from 'lib/strings/embed-player'
+import {
+  getStarterPackOgCard,
+  parseStarterPackUri,
+} from 'lib/strings/starter-pack'
 import {toNiceDomain} from 'lib/strings/url-helpers'
 import {isNative} from 'platform/detection'
 import {useExternalEmbedsPrefs} from 'state/preferences'
@@ -28,10 +34,16 @@ export const ExternalLinkEmbed = ({
   style?: StyleProp<ViewStyle>
   hideAlt?: boolean
 }) => {
+  const {_} = useLingui()
   const pal = usePalette('default')
   const {isMobile} = useWebMediaQueries()
   const externalEmbedPrefs = useExternalEmbedsPrefs()
 
+  const starterPackParsed = parseStarterPackUri(link.uri)
+  const imageUri = starterPackParsed
+    ? getStarterPackOgCard(starterPackParsed.name, starterPackParsed.rkey)
+    : link.thumb
+
   const embedPlayerParams = React.useMemo(() => {
     const params = parseEmbedPlayerFromUrl(link.uri)
 
@@ -47,15 +59,19 @@ export const ExternalLinkEmbed = ({
   return (
     <View style={[a.flex_col, a.rounded_sm, a.overflow_hidden, a.mt_sm]}>
       <LinkWrapper link={link} onOpen={onOpen} style={style}>
-        {link.thumb && !embedPlayerParams ? (
+        {imageUri && !embedPlayerParams ? (
           <Image
             style={{
               aspectRatio: 1.91,
               borderTopRightRadius: 6,
               borderTopLeftRadius: 6,
             }}
-            source={{uri: link.thumb}}
+            source={{uri: imageUri}}
             accessibilityIgnoresInvertColors
+            accessibilityLabel={starterPackParsed ? link.title : undefined}
+            accessibilityHint={
+              starterPackParsed ? _(msg`Navigate to starter pack`) : undefined
+            }
           />
         ) : undefined}
         {embedPlayerParams?.isGif ? (
@@ -63,6 +79,7 @@ export const ExternalLinkEmbed = ({
         ) : embedPlayerParams ? (
           <ExternalPlayer link={link} params={embedPlayerParams} />
         ) : undefined}
+        {!starterPackParsed ? (
           <View
             style={[
               a.flex_1,
@@ -92,6 +109,7 @@ export const ExternalLinkEmbed = ({
               </Text>
             ) : undefined}
           </View>
+        ) : null}
       </LinkWrapper>
     </View>
   )