feat author button

.gitignore

@@ -170,3 +170,8 @@ dist
 
 .dev.vars
 .wrangler/
+
+# ide
+
+.idea
+.vscode

package.json

@@ -12,10 +12,10 @@
   "devDependencies": {
     "@cloudflare/workers-types": "^4.20240117.0",
     "typescript": "^5.0.4",
-    "wrangler": "^3.0.0"
+    "wrangler": "^3.73.0"
   },
   "dependencies": {
-    "@oddyamill/discord-workers": "^1.1.2",
-    "discord-api-types": "^0.37.92"
+    "@oddyamill/discord-workers": "^1.1.5",
+    "discord-api-types": "^0.37.98"
   }
 }

src/command.ts

@@ -12,6 +12,7 @@ import { Env } from './env'
 import { Interaction } from './interaction'
 import {
   getTikTok,
+  makeAuthorComponent,
   makeComponent,
   makeMessageURL,
   resolveArguments,
@@ -39,7 +40,7 @@ export const command = async (interaction: Interaction, t: Translator, env: Env,
         })
       }
 
-      const { format, stream, url } = data
+      const { format, author, stream, url } = data
 
       if (!stream) {
         return editResponse(interaction, {
@@ -58,7 +59,10 @@ export const command = async (interaction: Interaction, t: Translator, env: Env,
           components: [
             {
               type: ComponentType.ActionRow,
-              components: [makeComponent(t('open_in_tiktok'), url)],
+              components: [
+                makeComponent(t('open_in_tiktok'), url),
+                await makeAuthorComponent(author.nickname, author.id, author.uniqueId, author.avatarThumb, interaction, env, ctx),
+              ],
             },
           ],
         }

src/constants.ts

@@ -1,5 +1,7 @@
 export const TIKTOK_ENDPOINT = 'https://tiktok.com/@/video/'
 
+export const TIKTOK_USER_ENDPOINT = 'https://tiktok.com/@'
+
 export const MAX_FILE_LENGTH = 25 * 1024 * 1024
 
 // https://stackoverflow.com/questions/74077377/regular-expression-to-match-any-tiktok-video-id-and-url#comment130792938_74077377
@@ -16,3 +18,5 @@ export const TIKTOK_HEADERS = {
 }
 
 export const IMAGE_WORKER_CACHE_TTL = 31556952
+
+export const EMOJI_CACHE_TTL = 604800

src/env.ts

@@ -1,8 +1,9 @@
 import { BotEnv } from '@oddyamill/discord-workers'
 
 export interface Env extends BotEnv {
-  DISCORD_TOKEN: string
+  DISCORD_APPLICATION_ID: string
   IMAGE_WORKER_ENDPOINT?: string
   IMAGE_WORKER_CLIENT_ID: string
   IMAGE_WORKER_CLIENT_SECRET: string
+  CACHE: KVNamespace
 }

src/tiktok.ts

@@ -4,4 +4,10 @@ export type TikTok = {
     bitrateInfo?: { PlayAddr: { UrlList: [string] }; DataSize: number }[]
   }
   imagePost?: { images: [{ imageURL: { urlList: string } }] }
+  author: {
+    id: string
+    nickname: string
+    uniqueId: string
+    avatarThumb: string
+  }
 }

src/utils/arrayBufferToBase64.ts

@@ -0,0 +1,54 @@
+/*
+  https://gist.github.com/958841
+  MIT LICENSE
+  Copyright 2011 Jon Leighton
+  Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+  The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+const encodings =
+  'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
+
+export const arrayBufferToBase64 = (buffer: ArrayBuffer) => {
+  const bytes = new Uint8Array(buffer),
+    byteLength = bytes.byteLength,
+    byteRemainder = byteLength % 3,
+    mainLength = byteLength - byteRemainder
+
+  let a, b, c, d, chunk, result = ''
+
+  for (let i = 0; i < mainLength; i = i + 3) {
+    chunk = (bytes[i] << 16) | (bytes[i + 1] << 8) | bytes[i + 2]
+
+    a = (chunk & 16515072) >> 18
+    b = (chunk & 258048) >> 12
+    c = (chunk & 4032) >> 6
+    d = chunk & 63
+
+    result += encodings[a] + encodings[b] + encodings[c] + encodings[d]
+  }
+
+  switch (byteRemainder) {
+    case 1:
+      chunk = bytes[mainLength]
+
+      a = (chunk & 252) >> 2
+      b = (chunk & 3) << 4
+
+      result += encodings[a] + encodings[b] + '=='
+      break
+
+    case 2:
+      chunk = (bytes[mainLength] << 8) | bytes[mainLength + 1]
+
+      a = (chunk & 64512) >> 10
+      b = (chunk & 1008) >> 4
+      c = (chunk & 15) << 2
+
+      result += encodings[a] + encodings[b] + encodings[c] + '='
+      break
+  }
+
+  return result
+}

src/utils/emojiCache.ts

@@ -0,0 +1,25 @@
+import { APIMessageComponentEmoji } from 'discord-api-types/v10'
+import { EMOJI_CACHE_TTL } from '../constants'
+import { Env } from '../env'
+
+export const getComponentEmojiFromCache = async (
+  env: Env,
+  authorId: string
+): Promise<APIMessageComponentEmoji | undefined> => {
+  return (await env.CACHE.get(authorId, 'json')) ?? undefined
+}
+
+export const putComponentEmojiToCache = async (
+  env: Env,
+  authorId: string,
+  emoji: APIMessageComponentEmoji
+): Promise<void> => {
+  await env.CACHE.put(authorId, JSON.stringify(emoji), { expirationTtl: EMOJI_CACHE_TTL })
+}
+
+export const deleteComponentEmojiFromCache = async (
+  env: Env,
+  authorId: string
+): Promise<void> => {
+  await env.CACHE.delete(authorId)
+}

src/utils/getTikTok.ts

@@ -27,9 +27,10 @@ export const getTikTok = async (id: string, env: Env) => {
 
     return {
       url,
+      author: tiktok.author,
       ...await resolveMedia(response, tiktok, env),
     }
-  } catch {
-    return
+  } catch (error) {
+    console.error(error)
   }
 }

src/utils/index.ts

@@ -1,4 +1,6 @@
+export * from './emojiCache'
 export * from './getTikTok'
+export * from './makeAuthorComponent'
 export * from './makeComponent'
 export * from './makeMessageURL'
 export * from './resolveArguments'

src/utils/makeAuthorComponent.ts

@@ -0,0 +1,60 @@
+import { APIButtonComponentWithURL } from 'discord-api-types/v10'
+import { makeComponent } from './makeComponent'
+import { Env } from '../env'
+import { Interaction } from '../interaction'
+import { createApplicationEmoji } from '@oddyamill/discord-workers'
+import { arrayBufferToBase64 } from './arrayBufferToBase64'
+import { getComponentEmojiFromCache, putComponentEmojiToCache } from './emojiCache'
+import { TIKTOK_USER_ENDPOINT } from '../constants'
+
+export const makeAuthorComponent = async (
+  label: string,
+  authorId: string,
+  authorUsername: string,
+  authorAvatar: string,
+  interaction: Interaction,
+  env: Env,
+  ctx: ExecutionContext,
+): Promise<APIButtonComponentWithURL> => {
+  const component = makeComponent(
+    label,
+    TIKTOK_USER_ENDPOINT + authorUsername,
+    await getComponentEmojiFromCache(env, authorId)
+  )
+
+  if (component.emoji !== undefined) {
+    return component
+  }
+
+  const url =
+    env.IMAGE_WORKER_ENDPOINT !== undefined
+      ? env.IMAGE_WORKER_ENDPOINT + '/circle?url=' + encodeURIComponent(authorAvatar)
+      : authorAvatar
+
+  const image = await fetch(url, {
+    headers: {
+      'Cf-Access-Client-Id': env.IMAGE_WORKER_CLIENT_ID,
+      'Cf-Access-Client-Secret': env.IMAGE_WORKER_CLIENT_SECRET,
+    },
+  })
+
+  if (!image.ok) {
+    return component
+  }
+
+  try {
+    const emoji = await createApplicationEmoji(
+      env,
+      interaction.application_id,
+      authorId,
+      'data:image/png;base64,' + arrayBufferToBase64(await image.arrayBuffer())
+    )
+
+    component.emoji = { id: emoji.id!, name: emoji.name! }
+    ctx.waitUntil(putComponentEmojiToCache(env, authorId, component.emoji))
+  } catch (error) {
+    console.error(error)
+  }
+
+  return component
+}

src/utils/makeComponent.ts

@@ -1,14 +1,16 @@
 import {
   APIButtonComponentWithURL,
+  APIMessageComponentEmoji,
   ButtonStyle,
   ComponentType,
 } from 'discord-api-types/v10'
 
-export const makeComponent = (label: string, url: string): APIButtonComponentWithURL => {
+export const makeComponent = (label: string, url: string, emoji?: APIMessageComponentEmoji): APIButtonComponentWithURL => {
   return {
     type: ComponentType.Button,
     style: ButtonStyle.Link,
     label,
     url,
+    emoji,
   }
 }

src/utils/resolveMedia.ts

@@ -7,7 +7,12 @@ import {
 import { resolveCookie } from './resolveCookie'
 import { Env } from '../env'
 
-export const resolveMedia = async (response: Response, tiktok: TikTok, env: Env) => {
+export interface Media {
+  stream: Response
+  format: string
+}
+
+export const resolveMedia = async (response: Response, tiktok: TikTok, env: Env): Promise<Media | {}> => {
   const init: RequestInit = {
     headers: {
       Cookie: resolveCookie(response),
@@ -26,7 +31,7 @@ export const resolveMedia = async (response: Response, tiktok: TikTok, env: Env)
   return {}
 }
 
-const resolveImage = async (tiktok: TikTok, init: RequestInit, env: Env) => {
+const resolveImage = async (tiktok: TikTok, init: RequestInit, env: Env): Promise<Media> => {
   const { imagePost } = tiktok
 
   if (imagePost!.images.length > 1 && env.IMAGE_WORKER_ENDPOINT !== undefined) {
@@ -58,7 +63,7 @@ const resolveImage = async (tiktok: TikTok, init: RequestInit, env: Env) => {
   }
 }
 
-const resolveVideo = async (tiktok: TikTok, init: RequestInit) => {
+const resolveVideo = async (tiktok: TikTok, init: RequestInit): Promise<Media | {}> => {
   for (const bitrateInfo of tiktok.video.bitrateInfo!) {
     if (bitrateInfo.DataSize > MAX_FILE_LENGTH) {
       continue

src/worker.ts

@@ -3,11 +3,12 @@ import {
   InteractionResponseType,
   InteractionType,
 } from 'discord-api-types/v10'
-import { getInteraction, respond } from '@oddyamill/discord-workers'
+import { deleteApplicationEmoji, getApplicationEmojis, getInteraction, respond } from '@oddyamill/discord-workers'
 import { Interaction } from './interaction'
 import { Env } from './env'
 import { getTranslator } from './localization'
 import { command } from './command'
+import { deleteComponentEmojiFromCache } from './utils'
 
 export default {
   async fetch(request, env, ctx): Promise<Response> {
@@ -25,4 +26,22 @@ export default {
 
     return command(interaction, getTranslator(interaction.locale), env, ctx)
   },
+  async scheduled(_, env, ctx): Promise<void> {
+    const { items: emojis } = await getApplicationEmojis(env, env.DISCORD_APPLICATION_ID)
+
+    if (emojis.length === 0) {
+      return
+    }
+
+    const promises = []
+
+    for (const emoji of emojis) {
+      promises.push(
+        deleteApplicationEmoji(env, env.DISCORD_APPLICATION_ID, emoji.id!),
+        deleteComponentEmojiFromCache(env, emoji.name!)
+      )
+    }
+
+    ctx.waitUntil(Promise.allSettled(promises))
+  },
 } satisfies ExportedHandler<Env>

wrangler.toml

@@ -3,3 +3,11 @@ main = "src/worker.ts"
 compatibility_date = "2024-01-17"
 keep_vars = true
 workers_dev = false
+upload_source_maps = true
+
+[[kv_namespaces]]
+binding = "CACHE"
+id = "da05bb0c7ad34bfdac1f061d5c7d2717"
+
+[triggers]
+crons = ["0 12 * * 1"]