org/argeo/app/servlet/odk/OdkSubmissionServlet.java

   1 package org.argeo.app.servlet.odk;
   2
   3 import java.io.IOException;
   4 import java.time.Instant;
   5 import java.time.ZoneId;
   6 import java.time.ZoneOffset;
   7 import java.time.format.DateTimeFormatter;
   8 import java.util.HashSet;
   9 import java.util.Set;
  10
  11 import javax.jcr.ImportUUIDBehavior;
  12 import javax.jcr.Node;
  13 import javax.jcr.Property;
  14 import javax.jcr.Repository;
  15 import javax.jcr.RepositoryException;
  16 import javax.jcr.Session;
  17 import javax.jcr.nodetype.NodeType;
  18 import javax.servlet.ServletException;
  19 import javax.servlet.http.HttpServlet;
  20 import javax.servlet.http.HttpServletRequest;
  21 import javax.servlet.http.HttpServletResponse;
  22 import javax.servlet.http.Part;
  23
  24 import org.argeo.api.cms.CmsSession;
  25 import org.argeo.app.core.SuiteUtils;
  26 import org.argeo.app.odk.OrxType;
  27 import org.argeo.app.xforms.FormSubmissionListener;
  28 import org.argeo.api.cms.CmsLog;
  29 import org.argeo.cms.auth.RemoteAuthRequest;
  30 import org.argeo.cms.auth.RemoteAuthUtils;
  31 import org.argeo.cms.jcr.CmsJcrUtils;
  32 import org.argeo.cms.servlet.ServletHttpRequest;
  33 import org.argeo.jcr.Jcr;
  34 import org.argeo.jcr.JcrUtils;
  35
  36 /** Receives a form submission. */
  37 public class OdkSubmissionServlet extends HttpServlet {
  38         private static final long serialVersionUID = 7834401404691302385L;
  39         private final static CmsLog log = CmsLog.getLog(OdkSubmissionServlet.class);
  40
  41         private final static String XML_SUBMISSION_FILE = "xml_submission_file";
  42
  43         private DateTimeFormatter submissionNameFormatter = DateTimeFormatter.ofPattern("YYYY-MM-dd-HHmmssSSS")
  44                         .withZone(ZoneId.from(ZoneOffset.UTC));
  45
  46         private Repository repository;
  47
  48         private Set<FormSubmissionListener> submissionListeners = new HashSet<>();
  49
  50         @Override
  51         protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
  52                 resp.setContentType("text/xml; charset=utf-8");
  53                 resp.setHeader("X-OpenRosa-Version", "1.0");
  54                 resp.setDateHeader("Date", System.currentTimeMillis());
  55                 resp.setIntHeader("X-OpenRosa-Accept-Content-Length", 1024 * 1024);
  56
  57                 RemoteAuthRequest request = new ServletHttpRequest(req);
  58                 Session session = RemoteAuthUtils.doAs(() -> Jcr.login(repository, null), request);
  59
  60                 try {
  61 //                      Node submissions = JcrUtils.mkdirs(session,
  62 //                                      "/" + EntityType.form.get() + "/" + EntityNames.SUBMISSIONS_BASE);
  63                         CmsSession cmsSession = RemoteAuthUtils.getCmsSession(request);
  64
  65 //                      ClassLoader currentContextCl = Thread.currentThread().getContextClassLoader();
  66 //                      Thread.currentThread().setContextClassLoader(CmsJcrUtils.class.getClassLoader());
  67                         Session adminSession = null;
  68                         try {
  69                                 // TODO centralise at a deeper level
  70                                 adminSession = CmsJcrUtils.openDataAdminSession(repository, null);
  71                                 SuiteUtils.getOrCreateCmsSessionNode(adminSession, cmsSession);
  72                         } finally {
  73                                 Jcr.logout(adminSession);
  74 //                              Thread.currentThread().setContextClassLoader(currentContextCl);
  75                         }
  76
  77                         Node cmsSessionNode = SuiteUtils.getCmsSessionNode(session, cmsSession);
  78                         Node submission = cmsSessionNode.addNode(submissionNameFormatter.format(Instant.now()),
  79                                         OrxType.submission.get());
  80                         for (Part part : req.getParts()) {
  81                                 if (log.isDebugEnabled())
  82                                         log.debug("Part: " + part.getName() + ", " + part.getContentType());
  83
  84                                 if (part.getName().equals(XML_SUBMISSION_FILE)) {
  85                                         Node xml = submission.addNode(XML_SUBMISSION_FILE, NodeType.NT_UNSTRUCTURED);
  86                                         session.importXML(xml.getPath(), part.getInputStream(),
  87                                                         ImportUUIDBehavior.IMPORT_UUID_COLLISION_REPLACE_EXISTING);
  88
  89                                 } else {
  90                                         Node fileNode = JcrUtils.copyStreamAsFile(submission, part.getName(), part.getInputStream());
  91                                         String contentType = part.getContentType();
  92                                         if (contentType != null) {
  93                                                 fileNode.addMixin(NodeType.MIX_MIMETYPE);
  94                                                 fileNode.setProperty(Property.JCR_MIMETYPE, contentType);
  95
  96                                         }
  97                                         if (part.getName().endsWith(".jpg") || part.getName().endsWith(".png")) {
  98                                                 // TODO meta data and thumbnails
  99                                         }
 100                                 }
 101                         }
 102                         session.save();
 103                         for (FormSubmissionListener submissionListener : submissionListeners) {
 104                                 submissionListener.formSubmissionReceived(submission);
 105                         }
 106                 } catch (RepositoryException e) {
 107                         e.printStackTrace();
 108                         resp.setStatus(503);
 109                         return;
 110                 } finally {
 111                         Jcr.logout(session);
 112                 }
 113
 114                 resp.setStatus(201);
 115                 resp.getWriter().write("<OpenRosaResponse xmlns=\"http://openrosa.org/http/response\">"
 116                                 + "<message>Form Received!</message>" + "</OpenRosaResponse>");
 117
 118         }
 119
 120         public void setRepository(Repository repository) {
 121                 this.repository = repository;
 122         }
 123
 124         public synchronized void addSubmissionListener(FormSubmissionListener listener) {
 125                 submissionListeners.add(listener);
 126         }
 127
 128         public synchronized void removeSubmissionListener(FormSubmissionListener listener) {
 129                 submissionListeners.remove(listener);
 130         }
 131 }