mirror of
https://github.com/Alfresco/alfresco-community-repo.git
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d6f9f50c39
125603 rmunteanu: Merged 5.1.1 (5.1.1) to 5.1.N (5.1.2)
125484 slanglois: MNT-16155 Update source headers - remove old Copyrights from Java and JSP dource files
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/BRANCHES/DEV/5.2.N/root@125781 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
262 lines
9.8 KiB
Java
262 lines
9.8 KiB
Java
package org.alfresco.web.app.servlet;
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import java.io.File;
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import java.io.IOException;
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import java.io.PrintWriter;
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import java.util.List;
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import java.util.Map;
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import javax.faces.context.FacesContext;
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import javax.servlet.ServletConfig;
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import javax.servlet.ServletException;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import javax.servlet.http.HttpSession;
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import org.alfresco.error.AlfrescoRuntimeException;
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import org.alfresco.repo.content.MimetypeMap;
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import org.alfresco.util.TempFileProvider;
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import org.alfresco.web.app.Application;
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import org.alfresco.web.bean.ErrorBean;
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import org.alfresco.web.bean.FileUploadBean;
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import org.alfresco.web.config.ClientConfigElement;
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import org.apache.commons.fileupload.FileItem;
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import org.apache.commons.fileupload.RequestContext;
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import org.apache.commons.fileupload.disk.DiskFileItemFactory;
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import org.apache.commons.fileupload.servlet.ServletFileUpload;
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import org.apache.commons.fileupload.servlet.ServletRequestContext;
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import org.apache.commons.io.FilenameUtils;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.json.JSONException;
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import org.json.JSONObject;
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import org.springframework.extensions.config.ConfigService;
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import org.springframework.web.context.WebApplicationContext;
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import org.springframework.web.context.support.WebApplicationContextUtils;
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/**
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* Servlet that takes a file uploaded via a browser and represents it as an
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* UploadFileBean in the session
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*
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* @author gavinc
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* @deprecated 5.0 not exposed in web-client web.xml
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*/
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public class UploadFileServlet extends BaseServlet
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{
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private static final long serialVersionUID = -5482538466491052875L;
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private static final Log logger = LogFactory.getLog(UploadFileServlet.class);
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private ConfigService configService;
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/**
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* @see javax.servlet.GenericServlet#init()
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*/
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@Override
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public void init(ServletConfig sc) throws ServletException
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{
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super.init(sc);
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WebApplicationContext ctx = WebApplicationContextUtils.getRequiredWebApplicationContext(sc.getServletContext());
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this.configService = (ConfigService)ctx.getBean("webClientConfigService");
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}
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/**
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* @see javax.servlet.http.HttpServlet#service(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
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*/
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@SuppressWarnings("unchecked")
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protected void service(HttpServletRequest request, HttpServletResponse response)
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throws ServletException, IOException
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{
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String uploadId = null;
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String returnPage = null;
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final RequestContext requestContext = new ServletRequestContext(request);
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boolean isMultipart = ServletFileUpload.isMultipartContent(requestContext);
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try
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{
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AuthenticationStatus status = servletAuthenticate(request, response);
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if (status == AuthenticationStatus.Failure)
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{
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return;
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}
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if (!isMultipart)
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{
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throw new AlfrescoRuntimeException("This servlet can only be used to handle file upload requests, make" +
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"sure you have set the enctype attribute on your form to multipart/form-data");
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}
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if (logger.isDebugEnabled())
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logger.debug("Uploading servlet servicing...");
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FacesContext context = FacesContext.getCurrentInstance();
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Map<Object, Object> session = context.getExternalContext().getSessionMap();
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ServletFileUpload upload = new ServletFileUpload(new DiskFileItemFactory());
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// ensure that the encoding is handled correctly
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upload.setHeaderEncoding("UTF-8");
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List<FileItem> fileItems = upload.parseRequest(request);
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FileUploadBean bean = new FileUploadBean();
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for (FileItem item : fileItems)
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{
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if(item.isFormField())
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{
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if (item.getFieldName().equalsIgnoreCase("return-page"))
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{
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returnPage = item.getString();
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}
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else if (item.getFieldName().equalsIgnoreCase("upload-id"))
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{
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uploadId = item.getString();
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}
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}
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else
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{
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String filename = item.getName();
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if (filename != null && filename.length() != 0)
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{
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if (logger.isDebugEnabled())
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{
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logger.debug("Processing uploaded file: " + filename);
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}
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// ADB-41: Ignore non-existent files i.e. 0 byte streams.
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if (allowZeroByteFiles() == true || item.getSize() > 0)
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{
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// workaround a bug in IE where the full path is returned
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// IE is only available for Windows so only check for the Windows path separator
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filename = FilenameUtils.getName(filename);
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final File tempFile = TempFileProvider.createTempFile("alfresco", ".upload");
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item.write(tempFile);
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bean.setFile(tempFile);
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bean.setFileName(filename);
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bean.setFilePath(tempFile.getAbsolutePath());
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if (logger.isDebugEnabled())
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{
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logger.debug("Temp file: " + tempFile.getAbsolutePath() +
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" size " + tempFile.length() +
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" bytes created from upload filename: " + filename);
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}
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}
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else
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{
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if (logger.isWarnEnabled())
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logger.warn("Ignored file '" + filename + "' as there was no content, this is either " +
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"caused by uploading an empty file or a file path that does not exist on the client.");
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}
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}
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}
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}
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session.put(FileUploadBean.getKey(uploadId), bean);
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if (bean.getFile() == null && uploadId != null && logger.isWarnEnabled())
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{
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logger.warn("no file uploaded for upload id: " + uploadId);
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}
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if (returnPage == null || returnPage.length() == 0)
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{
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throw new AlfrescoRuntimeException("return-page parameter has not been supplied");
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}
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JSONObject json;
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try
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{
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json = new JSONObject(returnPage);
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if (json.has("id") && json.has("args"))
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{
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// finally redirect
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if (logger.isDebugEnabled())
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{
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logger.debug("Sending back javascript response " + returnPage);
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}
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response.setContentType(MimetypeMap.MIMETYPE_HTML);
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response.setCharacterEncoding("utf-8");
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// work-around for WebKit protection against embedded javascript on POST body response
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response.setHeader("X-XSS-Protection", "0");
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final PrintWriter out = response.getWriter();
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out.println("<html><body><script type=\"text/javascript\">");
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out.println("window.parent.upload_complete_helper(");
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out.println("'" + json.getString("id") + "'");
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out.println(", ");
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out.println(json.getJSONObject("args"));
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out.println(");");
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out.println("</script></body></html>");
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out.close();
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}
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}
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catch (JSONException e)
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{
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// finally redirect
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if (logger.isDebugEnabled())
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logger.debug("redirecting to: " + returnPage);
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response.sendRedirect(returnPage);
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}
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if (logger.isDebugEnabled())
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logger.debug("upload complete");
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}
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catch (Throwable error)
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{
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handleUploadException(request, response, error, returnPage);
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}
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}
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private void handleUploadException(HttpServletRequest request, HttpServletResponse response, Throwable error, String returnPage)
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{
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try
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{
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HttpSession session = request.getSession(true);
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ErrorBean errorBean = (ErrorBean) session.getAttribute(ErrorBean.ERROR_BEAN_NAME);
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if (errorBean == null)
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{
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errorBean = new ErrorBean();
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session.setAttribute(ErrorBean.ERROR_BEAN_NAME, errorBean);
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}
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errorBean.setLastError(error);
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errorBean.setReturnPage(returnPage);
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}
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catch (Throwable e)
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{
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logger.error("Error while handling upload Exception", e);
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}
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try
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{
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String errorPage = Application.getErrorPage(getServletContext());
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if (logger.isDebugEnabled())
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{
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logger.debug("An error has occurred. Sending back response for redirecting to error page: " + errorPage);
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}
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response.setContentType(MimetypeMap.MIMETYPE_HTML);
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response.setCharacterEncoding("utf-8");
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final PrintWriter out = response.getWriter();
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out.println("<html><body><script type=\"text/javascript\">");
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out.println("window.parent.location.replace(\" " + request.getContextPath() + errorPage + "\")");
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out.println("</script></body></html> ");
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out.close();
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}
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catch (Exception e)
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{
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logger.error("Error while handling upload Exception", e);
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}
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}
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private boolean allowZeroByteFiles()
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{
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ClientConfigElement clientConfig = (ClientConfigElement)configService.getGlobalConfig().getConfigElement(
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ClientConfigElement.CONFIG_ELEMENT_ID);
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return clientConfig.isZeroByteFileUploads();
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}
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}
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