Capture Suno API responses for library detection

chatgpt-suno-tampermonkey.user.js

@@ -1,7 +1,7 @@
 // ==UserScript==
 // @name         ChatGPT to Suno Prompt Copier
 // @namespace    local.suno-helper
-// @version      0.3.0
+// @version      0.3.1
 // @description  Copy structured ChatGPT song prompt versions into Suno fields.
 // @author       local
 // @match        https://chatgpt.com/*
@@ -12,12 +12,13 @@
 // @downloadURL  https://git.mokaya.org/shkim/suno-helper/raw/branch/master/chatgpt-suno-tampermonkey.user.js
 // @connect      cdn*.suno.ai
 // @connect      *.suno.com
-// @run-at       document-idle
+// @run-at       document-start
 // @grant        GM_addStyle
 // @grant        GM_getValue
 // @grant        GM_download
 // @grant        GM_setClipboard
 // @grant        GM_setValue
+// @grant        unsafeWindow
 // ==/UserScript==
 
 (function () {
@@ -27,6 +28,7 @@
   const SLOT_COUNT = 2;
   const isChatGPT = location.hostname.includes("chatgpt.com") || location.hostname.includes("chat.openai.com");
   const isSuno = location.hostname === "suno.com" || location.hostname.endsWith(".suno.com");
+  const capturedSunoResponses = [];
   let chatRenderTimer = 0;
 
   const FIELD_DEFS = [
@@ -37,6 +39,69 @@
     { key: "extend", label: "Extend Prompt", aliases: ["Extend용 추가 프롬프트", "Extend", "추가 프롬프트"] },
   ];
 
+  function rememberSunoResponse(url, data) {
+    if (!isSuno || !data) return;
+    const text = typeof data === "string" ? data : JSON.stringify(data);
+    if (!/clip|audio_url|image_url|song|playlist|metadata|cdn[0-9]*\.suno\.ai/i.test(text)) return;
+    capturedSunoResponses.push({
+      url: String(url || location.href),
+      data,
+      capturedAt: new Date().toISOString(),
+    });
+    if (capturedSunoResponses.length > 60) capturedSunoResponses.shift();
+  }
+
+  function tryParseJson(text) {
+    if (!text || typeof text !== "string") return null;
+    try {
+      return JSON.parse(text);
+    } catch {
+      return null;
+    }
+  }
+
+  function installSunoNetworkCapture() {
+    if (!isSuno) return;
+    const page = typeof unsafeWindow !== "undefined" ? unsafeWindow : window;
+    if (page.__cgsNetworkCaptureInstalled) return;
+    page.__cgsNetworkCaptureInstalled = true;
+
+    const originalFetch = page.fetch;
+    if (typeof originalFetch === "function") {
+      page.fetch = async function (...args) {
+        const response = await originalFetch.apply(this, args);
+        const url = args[0]?.url || args[0] || response.url || "";
+        if (/suno/i.test(String(url))) {
+          response.clone().text().then((text) => {
+            rememberSunoResponse(url, tryParseJson(text) || text);
+          }).catch(() => {});
+        }
+        return response;
+      };
+    }
+
+    const OriginalXHR = page.XMLHttpRequest;
+    if (typeof OriginalXHR === "function") {
+      page.XMLHttpRequest = function () {
+        const xhr = new OriginalXHR();
+        let requestUrl = "";
+        const open = xhr.open;
+        xhr.open = function (method, url, ...rest) {
+          requestUrl = String(url || "");
+          return open.call(xhr, method, url, ...rest);
+        };
+        xhr.addEventListener("load", () => {
+          if (!/suno/i.test(requestUrl || xhr.responseURL || "")) return;
+          const responseText = typeof xhr.responseText === "string" ? xhr.responseText : "";
+          rememberSunoResponse(requestUrl || xhr.responseURL, tryParseJson(responseText) || responseText);
+        });
+        return xhr;
+      };
+    }
+  }
+
+  installSunoNetworkCapture();
+
   GM_addStyle(`
     #cgs-panel {
       position: fixed;
@@ -486,6 +551,14 @@
     return results;
   }
 
+  function readSunoDataSources() {
+    return [
+      ...readJsonScripts(),
+      ...capturedSunoResponses.map((item) => item.data),
+      ...((typeof unsafeWindow !== "undefined" && unsafeWindow.__NEXT_DATA__) ? [unsafeWindow.__NEXT_DATA__] : []),
+    ];
+  }
+
   function flattenObjects(value, output = []) {
     if (!value || typeof value !== "object") return output;
     if (Array.isArray(value)) {
@@ -540,8 +613,8 @@
   }
 
   function scanSunoLibraryTracks() {
-    const scripts = readJsonScripts();
+    const sources = readSunoDataSources();
-    const objects = scripts.flatMap((item) => flattenObjects(item));
+    const objects = sources.flatMap((item) => flattenObjects(item));
     const tracks = new Map();
 
     for (const object of objects) {
@@ -575,13 +648,21 @@
       .sort((a, b) => String(a.title).localeCompare(String(b.title), "ko"));
   }
 
+  function visibleSunoRowsHint() {
+    const titles = [...document.querySelectorAll("a, h1, h2, h3, [role='button'], div, span")]
+      .map((node) => (node.innerText || node.textContent || "").trim())
+      .filter((text) => text && text.length < 80 && !/^(Songs|Playlists|Workspaces|Studio Projects|Voices|Cover Art|Hooks|History|Search|Newest|Liked|Public|Uploads)$/i.test(text));
+    const likelyTitles = titles.filter((text, index) => titles.indexOf(text) === index).slice(0, 5);
+    return likelyTitles;
+  }
+
   function findCurrentSunoTrack() {
     const pageText = document.body.innerText || "";
     const htmlText = document.documentElement.innerHTML || "";
-    const scripts = readJsonScripts();
+    const sources = readSunoDataSources();
-    const objects = scripts.flatMap((item) => flattenObjects(item));
+    const objects = sources.flatMap((item) => flattenObjects(item));
     const audioElements = [...document.querySelectorAll("audio, video")].map((node) => node.currentSrc || node.src);
-    const allText = [htmlText, ...scripts.map((item) => typeof item === "string" ? item : JSON.stringify(item))].join("\n");
+    const allText = [htmlText, ...sources.map((item) => typeof item === "string" ? item : JSON.stringify(item))].join("\n");
     const uuidPattern = /[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}/gi;
     const ids = unique([...allText.matchAll(uuidPattern)].map((match) => match[0]));
     const cdnAudioUrls = extractUrls(allText, /https:\/\/cdn[0-9]*\.suno\.ai\/[^"' <>)]+?\.(?:mp3|wav|m4a|oga|ogg)(?:\?[^"' <>)]+)?/gi);
@@ -603,7 +684,7 @@
       metadata.name ||
       document.querySelector("h1")?.innerText ||
       document.querySelector("[data-testid*='title' i]")?.innerText ||
-      document.title.replace(/\s*\|\s*Suno.*$/i, "");
+      "";
     const id = metadata.id || metadata.clip_id || metadata.clipId || ids[0] || "";
     const imageUrl = metadata.image_url || metadata.imageUrl || metadata.image_large_url || imageUrls[0] || "";
     const audioUrl = metadata.audio_url || metadata.audioUrl || audioUrls.find((url) => /\.wav(?:\?|$)/i.test(url)) || audioUrls[0] || "";
@@ -785,7 +866,13 @@
       libraryTracks = scanSunoLibraryTracks();
       updateSummary();
       const sample = libraryTracks.slice(0, 3).map((track) => track.title || track.id).join(", ");
-      setStatus(body, libraryTracks.length ? `${libraryTracks.length}곡 감지: ${sample}` : "라이브러리 곡을 못 찾았어. 곡 목록을 스크롤해서 로드한 뒤 다시 눌러봐.");
+      if (libraryTracks.length) {
+        setStatus(body, `${libraryTracks.length}곡 감지: ${sample}`);
+        return;
+      }
+      const visibleHints = visibleSunoRowsHint();
+      const networkHint = capturedSunoResponses.length ? `API 응답 ${capturedSunoResponses.length}개는 잡혔는데 clip 구조를 못 찾았어.` : "아직 SUNO API 응답을 못 잡았어.";
+      setStatus(body, `${networkHint} 목록 새로고침이나 스크롤 후 다시 눌러봐. 화면 텍스트: ${visibleHints.join(", ")}`);
     });
 
     body.querySelector("[data-cgs-download-library]").addEventListener("click", async () => {