From d1476074e5e0078146e8b62f4871fe7b74550e1a Mon Sep 17 00:00:00 2001
From: Your Name <your.email@example.com>
Date: Mon, 29 Dec 2025 09:53:28 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E6=94=B9=E8=BF=9B=E8=81=8A=E5=A4=A9?=
 =?UTF-8?q?=E5=AF=B9=E8=AF=9D=E4=B8=AD=E5=9B=BE=E7=89=87=E4=B8=8B=E8=BD=BD?=
 =?UTF-8?q?=E5=8A=9F=E8=83=BD=EF=BC=8C=E7=A1=AE=E4=BF=9D=E4=BD=BF=E7=94=A8?=
 =?UTF-8?q?=E5=8E=9F=E5=9B=BEURL?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- 增强原图URL解析逻辑，支持更多S3 URL格式
- 确保下载时始终使用原图URL而不是缩略图
- 改进兜底策略，更好地处理各种URL格式
---
 components/image-preview.tsx | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/components/image-preview.tsx b/components/image-preview.tsx
index aa5e714..1269148 100644
--- a/components/image-preview.tsx
+++ b/components/image-preview.tsx
@@ -105,8 +105,24 @@ export function ImagePreview({
       } else if (src.includes("openai-thumb-")) {
         originalUrl = src.replace("openai-thumb-", "openai-orig-");
         console.log("[ImagePreview] Inferred original URL from openai-thumb filename");
+      } else if (src.includes("/thumb/") || src.includes("-thumb")) {
+        // 尝试从S3 URL中推断原图URL（常见格式：xxx-thumb.jpg -> xxx.jpg 或 xxx/thumb/xxx -> xxx/xxx）
+        originalUrl = src.replace(/-thumb\./g, ".").replace(/\/thumb\//g, "/");
+        console.log("[ImagePreview] Inferred original URL from S3 path pattern");
       } else {
-        console.log("[ImagePreview] ⚠️ Could not parse original URL, using thumbnail as fallback");
+        // 如果无法推断，且src看起来已经是完整的URL（不是缩略图），直接使用src作为原图
+        // 否则记录警告
+        if (src.startsWith("http://") || src.startsWith("https://")) {
+          // 如果src已经是完整URL且不包含thumb标识，可能是原图
+          if (!src.includes("thumb") && !src.includes("thumbnail")) {
+            originalUrl = src;
+            console.log("[ImagePreview] Using src as original URL (no thumb identifier found)");
+          } else {
+            console.log("[ImagePreview] ⚠️ Could not parse original URL, using thumbnail as fallback");
+          }
+        } else {
+          console.log("[ImagePreview] ⚠️ Could not parse original URL, using thumbnail as fallback");
+        }
       }
     }