From 5dde49aeb256ae5be2233505e20682de25f008ab Mon Sep 17 00:00:00 2001
From: patrick <gh@patriick.dev>
Date: Mon, 4 May 2026 09:05:58 +0200
Subject: [PATCH] api/pinterest: fallback to the graphql api

---
 api/src/processing/services/pinterest.js | 62 +++++++++++++++++++++++-
 1 file changed, 61 insertions(+), 1 deletion(-)

diff --git a/api/src/processing/services/pinterest.js b/api/src/processing/services/pinterest.js
index c21400e1..94a98fbb 100644
--- a/api/src/processing/services/pinterest.js
+++ b/api/src/processing/services/pinterest.js
@@ -1,10 +1,67 @@
 import { genericUserAgent } from "../../config.js";
 import { resolveRedirectingURL } from "../url.js";
+import { randomBytes } from 'node:crypto';
 
 const videoRegex = /"url":"(https:\/\/v1\.pinimg\.com\/videos\/.*?)"/g;
 const imageRegex = /src="(https:\/\/i\.pinimg\.com\/.*\.(jpg|gif))"/g;
 const notFoundRegex = /"__typename"\s*:\s*"PinNotFound"/;
 
+export async function fetchFromGraphQL(id) {
+    const csrf = randomBytes(16).toString("hex");
+
+    const responseData = await fetch("https://www.pinterest.com/_/graphql/", {
+        body: JSON.stringify({
+            "queryHash": "a5ebb2b085f4c3f33f14ebb7da5ca572bcde8549c478fdccfbaddbbac4f01b92",
+            "variables": {
+                "pinId": id,
+                "isAuth": false,
+                "isDesktop": true,
+                "shouldPrefetchStoryPinFragment": false,
+                "shouldSkipImageViewerOnPageQuery": false,
+                "isUnauth": true
+            }
+        }),
+        headers: {
+            "Content-Type": "application/json",
+            "Cookie": `csrftoken=${csrf}`,
+            "User-Agent": genericUserAgent,
+            "X-Csrftoken": csrf,
+        },
+        method: "POST",
+    }).then(r => r.json());
+
+    const pinResponse = responseData?.data?.v3GetPinQueryv2;
+    if (!pinResponse || pinResponse.__typename !== "PinResponse") {
+        return;
+    }
+
+
+    const pinData = pinResponse?.data;
+    let bestQuality = pinData["images_orig"];
+    if (!bestQuality) {
+        for (const key of Object.keys(pinData)) {
+            if (!key.startsWith("images_")) continue;
+            const image = pinData[key];
+            const size = Math.max(image.height, image.width);
+            image.size = size;
+
+            if (!bestQuality || size > bestQuality?.size) {
+                bestQuality = image;
+            }
+        }
+    }
+    
+    const imageType = bestQuality.url?.endsWith(".gif") ? "gif" : "jpg";
+    
+    if (bestQuality) {
+        return {
+            urls: bestQuality.url,
+            isPhoto: true,
+            filename: `pinterest_${id}.${imageType}`
+        }
+    }
+}
+
 export default async function(o) {
     let id = o.id;
 
@@ -40,7 +97,7 @@ export default async function(o) {
                     .map(([, link]) => link)
                     .find(a => a.endsWith('.jpg') || a.endsWith('.gif'));
 
-    const imageType = imageLink.endsWith(".gif") ? "gif" : "jpg"
+    const imageType = imageLink?.endsWith(".gif") ? "gif" : "jpg"
 
     if (imageLink) return {
         urls: imageLink,
@@ -48,5 +105,8 @@ export default async function(o) {
         filename: `pinterest_${id}.${imageType}`
     }
 
+    const graphResponse = await fetchFromGraphQL(id);
+    if (graphResponse) return graphResponse;
+
     return { error: "fetch.empty" };
 }