示例#1
0
 private boolean needZoom(File file, Resize resize) {
   if (!resize.isForce()) {
     int size = resize.getSize();
     try {
       ImageInfo info = im4javas.read(file);
       if (info.getHeight() < size && info.getWidth() < size) {
         return false;
       }
     } catch (BadImageException e) {
       throw new SystemException(e.getMessage(), e);
     }
   }
   return true;
 }
示例#2
0
 private Resize parseSize(String _size) {
   if (Validators.isEmptyOrNull(_size, true)) {
     return null;
   } else {
     boolean force = false;
     int pos = _size.indexOf("!");
     if (pos != -1) {
       force = true;
     }
     String strSize = pos == -1 ? _size : _size.substring(0, pos);
     try {
       int size = Integer.parseInt(strSize);
       Resize resize = new Resize();
       resize.setForce(force);
       resize.setSize(size);
       return resize;
     } catch (Exception e) {
       throw new InvalidParamException();
     }
   }
 }
示例#3
0
 @RequestMapping(value = "{storeId}/{y}/{m}/{d}/{name}/{ext}/{size}", method = RequestMethod.GET)
 public void write(
     @PathVariable("storeId") int storeId,
     @PathVariable("y") String y,
     @PathVariable("m") String m,
     @PathVariable("d") String d,
     @PathVariable("name") String name,
     @PathVariable("ext") String ext,
     @PathVariable("size") String size,
     ServletWebRequest request,
     HttpServletResponse response)
     throws MyFileNotFoundException {
   String path =
       File.separator
           + y
           + File.separator
           + m
           + File.separator
           + d
           + File.separator
           + name
           + "."
           + ext;
   if (!Webs.isSafeFilePath(path)) {
     throw new InvalidParamException();
   }
   FileWriteConfig config = getFileWriteConfig(name);
   RequestMatcher matcher = config.getRequestMatcher();
   // 防盗链
   if (matcher != null && !matcher.matches(request.getRequest())) {
     throw new MyFileNotFoundException();
   }
   LocalFileStorage store = seek(storeId);
   File seek = store.seek(path);
   boolean isImage = Webs.isWebImage("." + ext);
   if (!isImage) {
     response.setContentLength((int) seek.length());
     response.setStatus(HttpServletResponse.SC_OK);
     response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
     response.setHeader("Content-Disposition", "attachment;filename=" + seek.getName());
     try {
       OutputStream out = response.getOutputStream();
       FileUtils.copyFile(seek, out);
     } catch (IOException e) {
     }
     return;
   }
   if (!isModified(request)) {
     response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
     return;
   }
   StringBuilder sb = new StringBuilder(imageCacheDir);
   Resize format = parseSize(size);
   ImageZoomMatcher zm = config.getZoomMatcher();
   boolean zoom = format != null && zm.zoom(format.getSize(), seek) && needZoom(seek, format);
   String _path = path;
   if (zoom) {
     _path = Files.appendFilename(_path, "_", format.getSize());
   }
   sb.append(_path);
   boolean supportWebp = (this.supportWebp && supportWebp(request.getRequest(), path));
   if (supportWebp) {
     sb.append(".").append(WEBP);
   }
   String absPath = sb.toString();
   String etag = Webs.generatorETag(absPath);
   if (request.checkNotModified(etag)) {
     response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
     return;
   }
   File file = new File(absPath);
   if (!file.exists()) {
     Files.forceMkdir(file.getParentFile());
     response.setContentType(URLConnection.guessContentTypeFromName(path));
     if (!zoom && !supportWebp) {
       file = seek;
     } else {
       synchronized (this) {
         if (!file.exists()) {
           if (supportWebp) {
             response.setContentType(WEBP_CONTENT_TYPE);
             try {
               im4javas.format(seek, new File(Files.getFilename(absPath)), WEBP);
             } catch (Exception e) {
               throw new SystemException(e);
             }
             seek = file;
           }
           if (zoom) {
             try {
               im4javas.zoom(seek, file, format);
             } catch (Exception e) {
               throw new SystemException(e);
             }
           }
         }
       }
     }
   }
   response.setContentLength((int) file.length());
   response.addDateHeader("Last-Modified", System.currentTimeMillis());
   response.addDateHeader("Expires", System.currentTimeMillis() + maxAge * 1000);
   response.setHeader("Cache-Control", "max-age=" + maxAge);
   response.setStatus(HttpServletResponse.SC_OK);
   try {
     OutputStream out = response.getOutputStream();
     FileUtils.copyFile(file, out);
   } catch (IOException e) {
   }
 }