streampark-console/streampark-console-service/src/main/java/org/apache/streampark/console/base/interceptor/UploadFileTypeInterceptor.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.streampark.console.base.interceptor;

import org.apache.streampark.common.util.FileUtils;
import org.apache.streampark.console.base.exception.ApiAlertException;

import org.apache.commons.lang3.StringUtils;
import org.apache.tika.metadata.HttpHeaders;
import org.apache.tika.metadata.Metadata;
import org.apache.tika.mime.MediaType;
import org.apache.tika.parser.AutoDetectParser;
import org.apache.tika.parser.ParseContext;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import org.xml.sax.helpers.DefaultHandler;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import java.io.InputStream;
import java.util.Map;

/** An interceptor used to handle file uploads */
@Component
public class UploadFileTypeInterceptor implements HandlerInterceptor {

  private static final Logger logger = LoggerFactory.getLogger(UploadFileTypeInterceptor.class);

  @Override
  public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
      throws Exception {
    if (request instanceof MultipartHttpServletRequest) {
      MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
      Map<String, MultipartFile> files = multipartRequest.getFileMap();
      for (String file : files.keySet()) {
        MultipartFile multipartFile = multipartRequest.getFile(file);
        ApiAlertException.throwIfNull(
            multipartFile, "File to upload can't be null. Upload file failed.");
        boolean isJarOrPyFile =
            FileUtils.isJarFileType(multipartFile.getInputStream())
                || isPythonFileType(multipartFile.getContentType(), multipartFile.getInputStream());
        ApiAlertException.throwIfFalse(
            isJarOrPyFile,
            "Illegal file type, Only support standard jar files. Upload file failed.");
      }
    }
    return true;
  }

  private boolean isPythonFileType(String contentType, InputStream input) {
    if (StringUtils.isBlank(contentType) || input == null) {
      throw new RuntimeException("The contentType or inputStream can not be null");
    }
    try {
      Metadata metadata = new Metadata();
      AutoDetectParser parser = new AutoDetectParser();
      parser.parse(input, new DefaultHandler(), metadata, new ParseContext());
      String mimeType = metadata.get(HttpHeaders.CONTENT_TYPE);
      return contentType.contains("text/x-python")
          && MediaType.TEXT_PLAIN.toString().equals(mimeType);
    } catch (Exception e) {
      logger.warn("MimeType parse failed", e);
      return false;
    }
  }

  @Override
  public void postHandle(
      HttpServletRequest request,
      HttpServletResponse response,
      Object handler,
      ModelAndView modelAndView)
      throws Exception {
    HandlerInterceptor.super.postHandle(request, response, handler, modelAndView);
  }

  @Override
  public void afterCompletion(
      HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
      throws Exception {
    HandlerInterceptor.super.afterCompletion(request, response, handler, ex);
  }
}