first commit, add facebook

src/modules/processing/match.js

@@ -25,6 +25,7 @@ import streamable from "./services/streamable.js";
 import twitch from "./services/twitch.js";
 import rutube from "./services/rutube.js";
 import dailymotion from "./services/dailymotion.js";
+import facebook from "./services/facebook.js";
 
 export default async function(host, patternMatch, url, lang, obj) {
     assert(url instanceof URL);
@@ -157,6 +158,9 @@ export default async function(host, patternMatch, url, lang, obj) {
                 break;
             case "dailymotion":
                 r = await dailymotion(patternMatch);
+                break;
+			case "facebook":
+                r = await facebook(patternMatch);
                 break;
             default:
                 return apiJSON(0, { t: errorUnsupported(lang) });

src/modules/processing/services/facebook.js

@@ -0,0 +1,71 @@
+import { genericUserAgent } from "../../config.js";
+
+const headers = {
+    'User-Agent': genericUserAgent,
+    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8',
+    'Accept-Language': 'en-US,en;q=0.5',
+    'Accept-Encoding': 'gzip, deflate, br',
+    'Sec-Fetch-Mode': 'navigate',
+    'Sec-Fetch-Site': 'none',
+}
+
+function resolveUrl(url) {
+    return fetch(url, { headers })
+        .then(r => {
+            if (r.headers.get('location')) {
+                return decodeURIComponent(r.headers.get('location'))
+            }
+            if (r.headers.get('link')) {
+                const linkMatch = r.headers.get('link').match(/<(.*?)\/>/)
+                return decodeURIComponent(linkMatch[1])
+            }
+            return false
+        })
+        .catch(() => false)
+}
+
+export default async function ({ shortLink, username, id }) {
+    const isShortLink = !!shortLink?.length
+
+    let url = isShortLink
+        ? `https://fb.watch/${shortLink}`
+        : `https://web.facebook.com/${username}/videos/${id}`
+
+    if (isShortLink) {
+        url = await resolveUrl(url)
+    }
+
+    const html = await fetch(url, { headers })
+        .then(r => r.text())
+        .catch(() => false)
+
+    if (!html) return { error: 'ErrorCouldntFetch' };
+
+    const urls = []
+    const hd = html.match('"browser_native_hd_url":"(.*?)"')
+    const sd = html.match('"browser_native_sd_url":"(.*?)"')
+
+    if (hd?.length) {
+        urls.push(JSON.parse(`["${hd[1]}"]`)[0])
+    }
+    if (sd?.length) {
+        urls.push(JSON.parse(`["${sd[1]}"]`)[0])
+    }
+
+    if (!urls.length) {
+        return { error: 'ErrorEmptyDownload' };
+    }
+
+    let filename = `facebook_${id}.mp4`
+    if (isShortLink) {
+        filename = `facebook_${shortLink}.mp4`
+    } else if (username?.length && username !== 'user') {
+        filename = `facebook_${username}_${id}.mp4`
+    }
+
+    return {
+        urls: urls[0],
+        filename,
+        audioFilename: `${filename.slice(0, -4)}_audio`,
+    };
+}

src/modules/processing/servicesConfig.json

@@ -115,6 +115,18 @@
         "dailymotion": {
             "alias": "dailymotion videos",
             "patterns": ["video/:id"],
+            "enabled": true
+        },
+        "facebook": {
+            "alias": "facebook videos",
+            "altDomains": ["fb.watch"],
+            "subdomains": ["web"],
+            "patterns": [
+                "_shortLink/:shortLink",
+                ":username/videos/:caption/:id",
+                ":username/videos/:id",
+                "reel/:id"
+            ],
             "enabled": true
 		}
     }

src/modules/processing/servicesPatternTesters.js

@@ -4,7 +4,6 @@ export const testers = {
         || patternMatch.tvId?.length <= 24,
 
     "dailymotion": (patternMatch) => patternMatch.id?.length <= 32,
-
     "instagram": (patternMatch) =>
         patternMatch.postId?.length <= 12
         || (patternMatch.username?.length <= 30 && patternMatch.storyId?.length <= 24),
@@ -14,10 +13,8 @@ export const testers = {
 
     "pinterest": (patternMatch) =>
         patternMatch.id?.length <= 128 || patternMatch.shortLink?.length <= 32,
-
     "reddit": (patternMatch) =>
         patternMatch.sub?.length <= 22 && patternMatch.id?.length <= 10,
-
     "rutube": (patternMatch) =>
         patternMatch.id?.length === 32,
 
@@ -34,23 +31,24 @@ export const testers = {
     "tumblr": (patternMatch) =>
         patternMatch.id?.length < 21
         || (patternMatch.id?.length < 21 && patternMatch.user?.length <= 32),
-
     "twitch": (patternMatch) =>
         patternMatch.channel && patternMatch.clip?.length <= 100,
-
     "twitter": (patternMatch) =>
         patternMatch.id?.length < 20,
-
     "vimeo": (patternMatch) =>
         patternMatch.id?.length <= 11
         && (!patternMatch.password || patternMatch.password.length < 16),
-
     "vine": (patternMatch) =>
         patternMatch.id?.length <= 12,
-
     "vk": (patternMatch) =>
         patternMatch.userId?.length <= 10 && patternMatch.videoId?.length <= 10,
 
     "youtube": (patternMatch) =>
         patternMatch.id?.length <= 11,
+
+    "facebook": (patternMatch) =>
+        patternMatch.shortLink?.length <= 11
+        || patternMatch.username?.length <= 30
+        || patternMatch.caption?.length <= 255
+        || patternMatch.id?.length <= 20,
 }

src/modules/processing/url.js

@@ -64,6 +64,16 @@ export function aliasURL(url) {
             if (url.hostname === 'dai.ly' && parts.length === 2) {
                 url = new URL(`https://dailymotion.com/video/${parts[1]}`)
             }
+		
+		case "facebook":
+        case "fb":
+            if (url.searchParams.get('v')) {
+                url = new URL(`https://web.facebook.com/user/videos/${url.searchParams.get('v')}`)
+            }
+            if (url.hostname === 'fb.watch') {
+                url = new URL(`https://web.facebook.com/_shortLink/${parts[1]}`)
+            }
+            break;
     }
 
     return url

src/test/tests.json

@@ -1115,5 +1115,46 @@
             "code": 200,
             "status": "stream"
         }
+    }],
+    "facebook": [{
+        "name": "direct video with username and id",
+        "url": "https://web.facebook.com/100048111287134/videos/1157798148685638/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "stream"
+        }
+    }, {
+        "name": "direct video with id as query param",
+        "url": "https://web.facebook.com/watch/?v=883839773514682&ref=sharing",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "stream"
+        }
+    }, {
+        "name": "direct video with caption",
+        "url": "https://web.facebook.com/wood57/videos/𝐒𝐞𝐛𝐚𝐬𝐤𝐨𝐦-𝐟𝐮𝐥𝐥/883839773514682",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "stream"
+        }
+    }, {
+        "name": "shortlink video",
+        "url": "https://fb.watch/r1K6XHMfGT/",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "stream"
+        }
+    }, {
+        "name": "reel video",
+        "url": "https://web.facebook.com/reel/730293269054758",
+        "params": {},
+        "expected": {
+            "code": 200,
+            "status": "stream"
+        }
 	}]
 }