feat: add darkibox.com service

Add extractor for darkibox.com, an XFileSharing-based video hosting
platform.

Extraction flow:
- POSTs to /dl endpoint with embed parameters
- Unpacks Dean Edwards packed JavaScript
- Extracts video URL from PlayerJS file: parameter

Supports direct (/FILECODE), /d/FILECODE, and embed URLs.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

api/src/processing/match.js

@@ -29,6 +29,7 @@ import loom from "./services/loom.js";
 import facebook from "./services/facebook.js";
 import bluesky from "./services/bluesky.js";
 import newgrounds from "./services/newgrounds.js";
+import darkibox from "./services/darkibox.js";
 
 let freebind;
 
@@ -266,6 +267,14 @@ export default async function({ host, patternMatch, params, authType }) {
                 });
                 break;
 
+            case "darkibox":
+                r = await darkibox({
+                    id: patternMatch.id,
+                    quality: params.videoQuality,
+                    isAudioOnly,
+                });
+                break;
+
             default:
                 return createResponse("error", {
                     code: "error.api.service.unsupported"

api/src/processing/service-config.js

@@ -20,6 +20,13 @@ export const services = {
         ],
         tld: "app",
     },
+    darkibox: {
+        patterns: [
+            ":id",
+            "d/:id",
+            "embed-:id.html",
+        ],
+    },
     dailymotion: {
         patterns: ["video/:id"],
     },

api/src/processing/service-patterns.js

@@ -8,6 +8,9 @@ export const testers = {
     "bsky": pattern =>
         pattern.user?.length <= 128 && pattern.post?.length <= 128,
 
+    "darkibox": pattern =>
+        pattern.id?.length <= 12,
+
     "dailymotion": pattern => pattern.id?.length <= 32,
 
     "facebook": pattern =>

api/src/processing/services/darkibox.js

@@ -0,0 +1,86 @@
+import { genericUserAgent } from "../../config.js";
+
+function unpack(packed) {
+    const match = packed.match(
+        /eval\(function\(p,a,c,k,e,d\)\{.*?\}?\('(.*?)','(\d+)',(\d+),'(.*?)'\.split/s
+    );
+    if (!match) return null;
+
+    let [, p, a, c, keywords] = match;
+    a = parseInt(a);
+    c = parseInt(c);
+    const kw = keywords.split('|');
+
+    const base = (num, radix) => {
+        const chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
+        let result = '';
+        while (num > 0) {
+            result = chars[num % radix] + result;
+            num = Math.floor(num / radix);
+        }
+        return result || '0';
+    };
+
+    const decoded = p.replace(/\b\w+\b/g, (word) => {
+        const index = parseInt(word, a) || 0;
+        if (index < c && kw[index]) {
+            return kw[index];
+        }
+        return word;
+    });
+
+    return decoded;
+}
+
+export default async function(obj) {
+    const html = await fetch(`https://darkibox.com/dl`, {
+        method: "POST",
+        headers: {
+            "user-agent": genericUserAgent,
+            "content-type": "application/x-www-form-urlencoded",
+            "referer": `https://darkibox.com/${obj.id}`,
+        },
+        body: new URLSearchParams({
+            op: "embed",
+            file_code: obj.id,
+            auto: "1",
+        }),
+    })
+    .then(r => r.status === 200 ? r.text() : false)
+    .catch(() => {});
+
+    if (!html) return { error: "fetch.fail" };
+
+    let videoUrl;
+
+    // try to find URL in packed JS
+    const packedMatch = html.match(/eval\(function\(p,a,c,k,e,d\)\{.*?\)\)/s);
+    if (packedMatch) {
+        const unpacked = unpack(packedMatch[0]);
+        if (unpacked) {
+            const fileMatch = unpacked.match(/file\s*:\s*"(https?:\/\/[^"]+)"/);
+            if (fileMatch) {
+                videoUrl = fileMatch[1];
+            }
+        }
+    }
+
+    // fallback: try direct regex on html
+    if (!videoUrl) {
+        const directMatch = html.match(/file\s*:\s*"(https?:\/\/[^"]+)"/);
+        if (directMatch) {
+            videoUrl = directMatch[1];
+        }
+    }
+
+    if (!videoUrl) return { error: "fetch.fail" };
+
+    return {
+        urls: videoUrl,
+        filename: `darkibox_${obj.id}.mp4`,
+        audioFilename: `darkibox_${obj.id}_audio`,
+        fileMetadata: {
+            title: `darkibox_${obj.id}`,
+        }
+    }
+}