Create facebook.js

lib/facebook.js

@@ -0,0 +1,114 @@
+import got from 'got'
+import * as cheerio from 'cheerio'
+import { FacebookDlArgsSchema, FacebookDlMediaSchema, FacebookDlSchema } from '../types/facebook-v1.js'
+import { DEFAULT_HEADERS } from './constant.js'
+
+export async function facebookdl(url) {
+    FacebookDlArgsSchema.parse(arguments)
+    const html = await got('https://fdownloader.net/en', {
+        headers: {
+            ...DEFAULT_HEADERS
+        }
+    }).text()
+    const k_url_search = /k_url_search="(.*?)"/.exec(html)![1]
+    const k_exp = /k_exp="(.*?)"/.exec(html)![1]
+    const k_token = /k_token="(.*?)"/.exec(html)![1]
+    const k_prefix_name = /k_prefix_name="(.*?)"/.exec(html)![1]
+
+    const form = {
+        k_exp,
+        k_token,
+        q: url,
+        lang: 'en',
+        web: 'fdownloader.net',
+        v: 'v2',
+        w: ''
+    }
+    const data = await got.post(k_url_search, {
+        headers: {
+            ...DEFAULT_HEADERS,
+            referer: 'https://fdownloader.net/'
+        },
+        form
+    }).json<{ data: string }>()
+
+    const $ = cheerio.load(data.data)
+
+    const k_url_convert = /k_url_convert = "(.*?)"/.exec($.html())![1]
+    const c_exp = /k_exp = "(.*?)"/.exec($.html())![1]
+    const c_token = /c_token = "(.*?)"/.exec($.html())![1]
+
+    const thumbnail = $('.thumbnail > .image-fb > img').attr('src')
+    const duration = $('.content > .clearfix > p').text() || undefined
+    const video = $('table.table').eq(0).find('tbody > tr').map((_, el) => {
+        const $el = $(el)
+        const $td = $el.find('td')
+        const quality = $td.eq(0).text()
+        const url = $td.eq(2).find('a').attr('href')
+        if (url) {
+            return {
+                quality,
+                download: () => Promise.resolve(url)
+            }
+        }
+        // TODO:
+        return false
+        const $button = $td.eq(2).find('button')
+        const ftype = 'mp4'
+        const v_id = $('#FbId').attr('value')
+        const videoUrl = $button.attr('data-videourl')
+        const videoType = $button.attr('data-videotype')
+        const videoCodec = $button.attr('data-videocodec')
+        const fquality = $button.attr('data-fquality')
+        const audioUrl = $('#audioUrl').attr('value')
+        const audioType = $('#audioType').attr('value')
+    }).toArray().filter(Boolean)
+
+    const audio: FacebookDlMediaSchema = []
+    const audioUrl = $('#audioUrl').attr('value')!
+    audio.push({
+        quality: '7kbps',
+        download: () => Promise.resolve(audioUrl)
+    })
+
+    const result = {
+        thumbnail,
+        duration,
+        video,
+        audio
+    }
+    console.log(result)
+    return FacebookDlSchema.parse(result)
+}
+
+export async function convert(
+    url: string,
+    v_id: string,
+    ftype: string,
+    videoUrl: string,
+    videoType: string,
+    videoCodec: string,
+    audioUrl: string,
+    audioType: string,
+    fquality: string,
+    fname: string,
+    exp: string,
+    token: string,
+) {
+    const data = await got.post(url, {
+        form: {
+            ftype,
+            v_id,
+            videoUrl,
+            videoType,
+            videoCodec,
+            audioUrl,
+            audioType,
+            fquality,
+            fname,
+            exp,
+            token,
+            cv: 'v2'
+        }
+    })
+}