From 5d9e5827a73349692c5d832eb8b89c85f5a19cf6 Mon Sep 17 00:00:00 2001
From: guideuhome <139778378+guideuhome@users.noreply.github.com>
Date: Sat, 16 May 2026 16:13:44 +0800
Subject: [PATCH] fix: correct HEIC/HEIF/AVIF preview URL for local/FTP files

- Use currentUrl from model instead of fileAttribute.getName() for
  file/ftp URLs. After super.filePreviewHandle() downloads the file,
  the actual path is stored as currentUrl in the model. Using just
  the filename causes the heic.ftl template to construct incorrect
  image URLs.
- Add avif suffix to HEIC template routing. The wasm_heif.js decoder
  in static/heic/src/worker.js already supports AVIF decoding, and
  FileType.java already lists avif in PICTURE_TYPES. This ensures
  AVIF files also benefit from client-side conversion.

Closes #664
---
 .../java/cn/keking/service/impl/PictureFilePreviewImpl.java | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/server/src/main/java/cn/keking/service/impl/PictureFilePreviewImpl.java b/server/src/main/java/cn/keking/service/impl/PictureFilePreviewImpl.java
index ff77438ac..f226d39df 100644
--- a/server/src/main/java/cn/keking/service/impl/PictureFilePreviewImpl.java
+++ b/server/src/main/java/cn/keking/service/impl/PictureFilePreviewImpl.java
@@ -39,13 +39,15 @@ public String filePreviewHandle(String url, Model model, FileAttribute fileAttri
             // 不是http开头，浏览器不能直接访问，需下载到本地
             super.filePreviewHandle(url, model, fileAttribute);
             if ( url.toLowerCase().startsWith("file") || url.toLowerCase().startsWith("ftp")) {
-                model.addAttribute("imgUrls", fileAttribute.getName());
+                // 使用下载后的相对路径，以便模板正确构造图片访问URL
+                String currentUrl = (String) model.getAttribute("currentUrl");
+                model.addAttribute("imgUrls", currentUrl != null ? currentUrl : fileAttribute.getName());
             }else {
                 model.addAttribute("imgUrls", url);
             }
 
         }
-        if(suffix.equalsIgnoreCase("heic")||suffix.equalsIgnoreCase("heif")){
+        if(suffix.equalsIgnoreCase("heic")||suffix.equalsIgnoreCase("heif")||suffix.equalsIgnoreCase("avif")){
             return HEIC_FILE_PREVIEW_PAGE;
         }else {
             return PICTURE_FILE_PREVIEW_PAGE;