| 1 |
51
|
jones
|
/**
|
| 2 |
203
|
jones
|
* '$RCSfile$'
|
| 3 |
|
|
* Purpose: A Class that implements a metadata catalog as a java Servlet
|
| 4 |
|
|
* Copyright: 2000 Regents of the University of California and the
|
| 5 |
|
|
* National Center for Ecological Analysis and Synthesis
|
| 6 |
361
|
berkley
|
* Authors: Matt Jones, Dan Higgins, Jivka Bojilova, Chad Berkley
|
| 7 |
348
|
jones
|
* Release: @release@
|
| 8 |
154
|
jones
|
*
|
| 9 |
203
|
jones
|
* '$Author$'
|
| 10 |
|
|
* '$Date$'
|
| 11 |
|
|
* '$Revision$'
|
| 12 |
669
|
jones
|
*
|
| 13 |
|
|
* This program is free software; you can redistribute it and/or modify
|
| 14 |
|
|
* it under the terms of the GNU General Public License as published by
|
| 15 |
|
|
* the Free Software Foundation; either version 2 of the License, or
|
| 16 |
|
|
* (at your option) any later version.
|
| 17 |
|
|
*
|
| 18 |
|
|
* This program is distributed in the hope that it will be useful,
|
| 19 |
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 20 |
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 21 |
|
|
* GNU General Public License for more details.
|
| 22 |
|
|
*
|
| 23 |
|
|
* You should have received a copy of the GNU General Public License
|
| 24 |
|
|
* along with this program; if not, write to the Free Software
|
| 25 |
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
| 26 |
51
|
jones
|
*/
|
| 27 |
|
|
|
| 28 |
|
|
package edu.ucsb.nceas.metacat;
|
| 29 |
|
|
|
| 30 |
798
|
jones
|
import com.oreilly.servlet.multipart.FilePart;
|
| 31 |
|
|
import com.oreilly.servlet.multipart.MultipartParser;
|
| 32 |
|
|
import com.oreilly.servlet.multipart.ParamPart;
|
| 33 |
|
|
import com.oreilly.servlet.multipart.Part;
|
| 34 |
|
|
|
| 35 |
733
|
bojilova
|
import java.io.File;
|
| 36 |
46
|
jones
|
import java.io.PrintWriter;
|
| 37 |
|
|
import java.io.IOException;
|
| 38 |
50
|
jones
|
import java.io.StringReader;
|
| 39 |
185
|
jones
|
import java.io.FileInputStream;
|
| 40 |
731
|
bojilova
|
import java.io.BufferedInputStream;
|
| 41 |
46
|
jones
|
import java.util.Enumeration;
|
| 42 |
|
|
import java.util.Hashtable;
|
| 43 |
341
|
berkley
|
import java.util.ResourceBundle;
|
| 44 |
648
|
berkley
|
import java.util.Random;
|
| 45 |
82
|
jones
|
import java.util.PropertyResourceBundle;
|
| 46 |
50
|
jones
|
import java.net.URL;
|
| 47 |
|
|
import java.net.MalformedURLException;
|
| 48 |
85
|
jones
|
import java.sql.PreparedStatement;
|
| 49 |
|
|
import java.sql.ResultSet;
|
| 50 |
50
|
jones
|
import java.sql.Connection;
|
| 51 |
55
|
jones
|
import java.sql.SQLException;
|
| 52 |
361
|
berkley
|
import java.lang.reflect.*;
|
| 53 |
453
|
berkley
|
import java.net.*;
|
| 54 |
458
|
berkley
|
import java.util.zip.*;
|
| 55 |
46
|
jones
|
|
| 56 |
|
|
import javax.servlet.ServletConfig;
|
| 57 |
|
|
import javax.servlet.ServletContext;
|
| 58 |
|
|
import javax.servlet.ServletException;
|
| 59 |
48
|
jones
|
import javax.servlet.ServletInputStream;
|
| 60 |
46
|
jones
|
import javax.servlet.http.HttpServlet;
|
| 61 |
|
|
import javax.servlet.http.HttpServletRequest;
|
| 62 |
|
|
import javax.servlet.http.HttpServletResponse;
|
| 63 |
210
|
bojilova
|
import javax.servlet.http.HttpSession;
|
| 64 |
47
|
jones
|
import javax.servlet.http.HttpUtils;
|
| 65 |
458
|
berkley
|
import javax.servlet.ServletOutputStream;
|
| 66 |
46
|
jones
|
|
| 67 |
50
|
jones
|
import oracle.xml.parser.v2.XSLStylesheet;
|
| 68 |
|
|
import oracle.xml.parser.v2.XSLException;
|
| 69 |
|
|
import oracle.xml.parser.v2.XMLDocumentFragment;
|
| 70 |
|
|
import oracle.xml.parser.v2.XSLProcessor;
|
| 71 |
|
|
|
| 72 |
204
|
jones
|
import org.xml.sax.SAXException;
|
| 73 |
|
|
|
| 74 |
46
|
jones
|
/**
|
| 75 |
|
|
* A metadata catalog server implemented as a Java Servlet
|
| 76 |
154
|
jones
|
*
|
| 77 |
|
|
* <p>Valid parameters are:<br>
|
| 78 |
|
|
* action=query -- query the values of all elements and attributes
|
| 79 |
|
|
* and return a result set of nodes<br>
|
| 80 |
205
|
jones
|
* action=squery -- structured query (see pathquery.dtd)<br>
|
| 81 |
731
|
bojilova
|
* action=read -- read any metadata/data file from Metacat and from Internet<br>
|
| 82 |
205
|
jones
|
* action=insert -- insert an XML document into the database store<br>
|
| 83 |
|
|
* action=update -- update an XML document that is in the database store<br>
|
| 84 |
|
|
* action=delete -- delete an XML document from the database store<br>
|
| 85 |
|
|
* action=validate -- vallidate the xml contained in valtext<br>
|
| 86 |
|
|
* doctype -- document type list returned by the query (publicID)<br>
|
| 87 |
154
|
jones
|
* qformat=xml -- display resultset from query in XML<br>
|
| 88 |
|
|
* qformat=html -- display resultset from query in HTML<br>
|
| 89 |
731
|
bojilova
|
* qformat=zip -- zip resultset from query<br>
|
| 90 |
154
|
jones
|
* docid=34 -- display the document with the document ID number 34<br>
|
| 91 |
205
|
jones
|
* doctext -- XML text of the document to load into the database<br>
|
| 92 |
598
|
bojilova
|
* acltext -- XML access text for a document to load into the database<br>
|
| 93 |
|
|
* dtdtext -- XML DTD text for a new DTD to load into Metacat XML Catalog<br>
|
| 94 |
183
|
jones
|
* query -- actual query text (to go with 'action=query' or 'action=squery')<br>
|
| 95 |
205
|
jones
|
* valtext -- XML text to be validated<br>
|
| 96 |
731
|
bojilova
|
* abstractpath -- XPath in metadata document to read from<br>
|
| 97 |
688
|
bojilova
|
* action=getaccesscontrol -- retrieve acl info for Metacat document<br>
|
| 98 |
|
|
* action=getdoctypes -- retrieve all doctypes (publicID)<br>
|
| 99 |
699
|
bojilova
|
* action=getdtdschema -- retrieve a DTD or Schema file<br>
|
| 100 |
688
|
bojilova
|
* action=getdataguide -- retrieve a Data Guide<br>
|
| 101 |
725
|
bojilova
|
* action=getprincipals -- retrieve a list of principals in XML<br>
|
| 102 |
205
|
jones
|
* datadoc -- data document name (id)<br>
|
| 103 |
|
|
* <p>
|
| 104 |
|
|
* The particular combination of parameters that are valid for each
|
| 105 |
|
|
* particular action value is quite specific. This documentation
|
| 106 |
|
|
* will be reorganized to reflect this information.
|
| 107 |
46
|
jones
|
*/
|
| 108 |
|
|
public class MetaCatServlet extends HttpServlet {
|
| 109 |
|
|
|
| 110 |
370
|
berkley
|
private ServletConfig config = null;
|
| 111 |
|
|
private ServletContext context = null;
|
| 112 |
|
|
private Hashtable connectionPool = new Hashtable();
|
| 113 |
|
|
private String resultStyleURL = null;
|
| 114 |
|
|
private String xmlcatalogfile = null;
|
| 115 |
|
|
private String saxparser = null;
|
| 116 |
798
|
jones
|
private String datafilepath = null;
|
| 117 |
|
|
private File dataDirectory = null;
|
| 118 |
370
|
berkley
|
private String servletpath = null;
|
| 119 |
822
|
jones
|
private String htmlpath = null;
|
| 120 |
380
|
jones
|
private PropertyResourceBundle options = null;
|
| 121 |
|
|
private MetaCatUtil util = null;
|
| 122 |
|
|
|
| 123 |
50
|
jones
|
/**
|
| 124 |
|
|
* Initialize the servlet by creating appropriate database connections
|
| 125 |
|
|
*/
|
| 126 |
46
|
jones
|
public void init( ServletConfig config ) throws ServletException {
|
| 127 |
|
|
try {
|
| 128 |
|
|
super.init( config );
|
| 129 |
|
|
this.config = config;
|
| 130 |
332
|
bojilova
|
this.context = config.getServletContext();
|
| 131 |
184
|
jones
|
System.out.println("MetaCatServlet Initialize");
|
| 132 |
82
|
jones
|
|
| 133 |
184
|
jones
|
util = new MetaCatUtil();
|
| 134 |
|
|
|
| 135 |
83
|
jones
|
// Get the configuration file information
|
| 136 |
184
|
jones
|
resultStyleURL = util.getOption("resultStyleURL");
|
| 137 |
|
|
xmlcatalogfile = util.getOption("xmlcatalogfile");
|
| 138 |
|
|
saxparser = util.getOption("saxparser");
|
| 139 |
798
|
jones
|
datafilepath = util.getOption("datafilepath");
|
| 140 |
|
|
dataDirectory = new File(datafilepath);
|
| 141 |
360
|
bojilova
|
servletpath = util.getOption("servletpath");
|
| 142 |
|
|
htmlpath = util.getOption("htmlpath");
|
| 143 |
598
|
bojilova
|
|
| 144 |
731
|
bojilova
|
// MOVED IT TO doGet() & doPost()
|
| 145 |
598
|
bojilova
|
// try {
|
| 146 |
|
|
// // Open a pool of db connections
|
| 147 |
|
|
// connectionPool = util.getConnectionPool();
|
| 148 |
|
|
// } catch (Exception e) {
|
| 149 |
|
|
// System.err.println("Error creating pool of database connections");
|
| 150 |
|
|
// System.err.println(e.getMessage());
|
| 151 |
|
|
// }
|
| 152 |
46
|
jones
|
} catch ( ServletException ex ) {
|
| 153 |
|
|
throw ex;
|
| 154 |
|
|
}
|
| 155 |
|
|
}
|
| 156 |
|
|
|
| 157 |
320
|
bojilova
|
/**
|
| 158 |
|
|
* Close all db connections from the pool
|
| 159 |
|
|
*/
|
| 160 |
|
|
public void destroy() {
|
| 161 |
|
|
|
| 162 |
|
|
if (util != null) {
|
| 163 |
|
|
util.closeConnections();
|
| 164 |
|
|
}
|
| 165 |
|
|
}
|
| 166 |
|
|
|
| 167 |
50
|
jones
|
/** Handle "GET" method requests from HTTP clients */
|
| 168 |
46
|
jones
|
public void doGet (HttpServletRequest request, HttpServletResponse response)
|
| 169 |
|
|
throws ServletException, IOException {
|
| 170 |
|
|
|
| 171 |
48
|
jones
|
// Process the data and send back the response
|
| 172 |
59
|
jones
|
handleGetOrPost(request, response);
|
| 173 |
48
|
jones
|
}
|
| 174 |
|
|
|
| 175 |
50
|
jones
|
/** Handle "POST" method requests from HTTP clients */
|
| 176 |
48
|
jones
|
public void doPost( HttpServletRequest request, HttpServletResponse response)
|
| 177 |
|
|
throws ServletException, IOException {
|
| 178 |
|
|
|
| 179 |
|
|
// Process the data and send back the response
|
| 180 |
59
|
jones
|
handleGetOrPost(request, response);
|
| 181 |
48
|
jones
|
}
|
| 182 |
|
|
|
| 183 |
49
|
jones
|
/**
|
| 184 |
50
|
jones
|
* Control servlet response depending on the action parameter specified
|
| 185 |
49
|
jones
|
*/
|
| 186 |
382
|
berkley
|
private void handleGetOrPost(HttpServletRequest request,
|
| 187 |
798
|
jones
|
HttpServletResponse response)
|
| 188 |
|
|
throws ServletException, IOException
|
| 189 |
|
|
{
|
| 190 |
48
|
jones
|
|
| 191 |
309
|
bojilova
|
if ( util == null ) {
|
| 192 |
|
|
util = new MetaCatUtil();
|
| 193 |
|
|
}
|
| 194 |
598
|
bojilova
|
if ( connectionPool.isEmpty() ) {
|
| 195 |
309
|
bojilova
|
try {
|
| 196 |
|
|
// Open a pool of db connections
|
| 197 |
|
|
connectionPool = util.getConnectionPool();
|
| 198 |
|
|
} catch (Exception e) {
|
| 199 |
675
|
berkley
|
System.err.println("Error creating pool of database connections in " +
|
| 200 |
|
|
" MetaCatServlet.handleGetOrPost");
|
| 201 |
309
|
bojilova
|
System.err.println(e.getMessage());
|
| 202 |
|
|
}
|
| 203 |
|
|
}
|
| 204 |
49
|
jones
|
// Get a handle to the output stream back to the client
|
| 205 |
566
|
jones
|
//PrintWriter pwout = response.getWriter();
|
| 206 |
102
|
jones
|
//response.setContentType("text/html");
|
| 207 |
798
|
jones
|
|
| 208 |
|
|
// Deal with forms that are encoded as "multipart/form-data" differently
|
| 209 |
|
|
// this is mainly used for uploading non-xml files using that may be binary
|
| 210 |
800
|
jones
|
String ctype = request.getContentType();
|
| 211 |
|
|
if (ctype != null && ctype.startsWith("multipart/form-data")) {
|
| 212 |
798
|
jones
|
handleMultipartForm(request, response);
|
| 213 |
|
|
} else {
|
| 214 |
|
|
// This probably means the data is "application/x-www-url-encoded", we hope :-)
|
| 215 |
49
|
jones
|
|
| 216 |
798
|
jones
|
String name = null;
|
| 217 |
|
|
String[] value = null;
|
| 218 |
|
|
String[] docid = new String[3];
|
| 219 |
|
|
Hashtable params = new Hashtable();
|
| 220 |
|
|
Enumeration paramlist = request.getParameterNames();
|
| 221 |
|
|
while (paramlist.hasMoreElements()) {
|
| 222 |
|
|
name = (String)paramlist.nextElement();
|
| 223 |
|
|
value = request.getParameterValues(name);
|
| 224 |
|
|
|
| 225 |
|
|
// Decode the docid and mouse click information
|
| 226 |
|
|
if (name.endsWith(".y")) {
|
| 227 |
|
|
docid[0] = name.substring(0,name.length()-2);
|
| 228 |
|
|
params.put("docid", docid);
|
| 229 |
|
|
name = "ypos";
|
| 230 |
648
|
berkley
|
}
|
| 231 |
798
|
jones
|
if (name.endsWith(".x")) {
|
| 232 |
|
|
name = "xpos";
|
| 233 |
|
|
}
|
| 234 |
|
|
|
| 235 |
|
|
params.put(name,value);
|
| 236 |
425
|
bojilova
|
}
|
| 237 |
798
|
jones
|
|
| 238 |
|
|
//if the user clicked on the input images, decode which image
|
| 239 |
|
|
//was clicked then set the action.
|
| 240 |
|
|
String action = ((String[])params.get("action"))[0];
|
| 241 |
|
|
util.debugMessage("Line 213: Action is: " + action);
|
| 242 |
|
|
|
| 243 |
|
|
// This block handles session management for the servlet
|
| 244 |
|
|
// by looking up the current session information for all actions
|
| 245 |
|
|
// other than "login" and "logout"
|
| 246 |
|
|
String username = null;
|
| 247 |
|
|
String password = null;
|
| 248 |
802
|
bojilova
|
String[] groupnames = null;
|
| 249 |
798
|
jones
|
String sess_id = null;
|
| 250 |
|
|
|
| 251 |
|
|
// handle login action
|
| 252 |
|
|
if (action.equals("login")) {
|
| 253 |
|
|
|
| 254 |
|
|
handleLoginAction(response.getWriter(), params, request, response);
|
| 255 |
|
|
|
| 256 |
|
|
// handle logout action
|
| 257 |
|
|
} else if (action.equals("logout")) {
|
| 258 |
|
|
|
| 259 |
|
|
handleLogoutAction(response.getWriter(), params, request, response);
|
| 260 |
|
|
|
| 261 |
|
|
// aware of session expiration on every request
|
| 262 |
|
|
} else {
|
| 263 |
|
|
|
| 264 |
|
|
HttpSession sess = request.getSession(true);
|
| 265 |
|
|
if (sess.isNew()) {
|
| 266 |
|
|
// session expired or has not been stored b/w user requests
|
| 267 |
|
|
username = "public";
|
| 268 |
|
|
sess.setAttribute("username", username);
|
| 269 |
|
|
} else {
|
| 270 |
|
|
username = (String)sess.getAttribute("username");
|
| 271 |
|
|
password = (String)sess.getAttribute("password");
|
| 272 |
802
|
bojilova
|
groupnames = (String[])sess.getAttribute("groupnames");
|
| 273 |
798
|
jones
|
try {
|
| 274 |
|
|
sess_id = (String)sess.getId();
|
| 275 |
|
|
} catch(IllegalStateException ise) {
|
| 276 |
|
|
System.out.println("error in handleGetOrPost: this shouldn't " +
|
| 277 |
|
|
"happen: the session should be valid: " +
|
| 278 |
|
|
ise.getMessage());
|
| 279 |
|
|
}
|
| 280 |
|
|
}
|
| 281 |
|
|
}
|
| 282 |
|
|
|
| 283 |
|
|
// Now that we know the session is valid, we can delegate the request
|
| 284 |
|
|
// to a particular action handler
|
| 285 |
|
|
if(action.equals("query")) {
|
| 286 |
802
|
bojilova
|
handleQuery(response.getWriter(),params,response,username,groupnames);
|
| 287 |
798
|
jones
|
} else if(action.equals("squery")) {
|
| 288 |
|
|
if(params.containsKey("query")) {
|
| 289 |
802
|
bojilova
|
handleSQuery(response.getWriter(),params,response,username,groupnames);
|
| 290 |
798
|
jones
|
} else {
|
| 291 |
|
|
PrintWriter out = response.getWriter();
|
| 292 |
|
|
out.println("Illegal action squery without \"query\" parameter");
|
| 293 |
|
|
}
|
| 294 |
|
|
} else if (action.equals("read")) {
|
| 295 |
802
|
bojilova
|
handleReadAction(params, response, username, groupnames);
|
| 296 |
798
|
jones
|
} else if (action.equals("insert") || action.equals("update")) {
|
| 297 |
458
|
berkley
|
PrintWriter out = response.getWriter();
|
| 298 |
798
|
jones
|
if ( (username != null) && !username.equals("public") ) {
|
| 299 |
802
|
bojilova
|
handleInsertOrUpdateAction(out,params,response,username,groupnames);
|
| 300 |
798
|
jones
|
} else {
|
| 301 |
|
|
out.println("Permission denied for " + action);
|
| 302 |
|
|
}
|
| 303 |
|
|
} else if (action.equals("delete")) {
|
| 304 |
|
|
PrintWriter out = response.getWriter();
|
| 305 |
|
|
if ( (username != null) && !username.equals("public") ) {
|
| 306 |
802
|
bojilova
|
handleDeleteAction(out, params, response, username, groupnames);
|
| 307 |
798
|
jones
|
} else {
|
| 308 |
|
|
out.println("Permission denied for " + action);
|
| 309 |
|
|
}
|
| 310 |
|
|
} else if (action.equals("validate")) {
|
| 311 |
|
|
PrintWriter out = response.getWriter();
|
| 312 |
|
|
handleValidateAction(out, params, response);
|
| 313 |
|
|
} else if (action.equals("getaccesscontrol")) {
|
| 314 |
|
|
PrintWriter out = response.getWriter();
|
| 315 |
802
|
bojilova
|
handleGetAccessControlAction(out,params,response,username,groupnames);
|
| 316 |
798
|
jones
|
} else if (action.equals("getprincipals")) {
|
| 317 |
|
|
PrintWriter out = response.getWriter();
|
| 318 |
|
|
handleGetPrincipalsAction(out, username, password);
|
| 319 |
|
|
} else if (action.equals("getdoctypes")) {
|
| 320 |
|
|
PrintWriter out = response.getWriter();
|
| 321 |
|
|
handleGetDoctypesAction(out, params, response);
|
| 322 |
|
|
} else if (action.equals("getdtdschema")) {
|
| 323 |
|
|
PrintWriter out = response.getWriter();
|
| 324 |
|
|
handleGetDTDSchemaAction(out, params, response);
|
| 325 |
|
|
} else if (action.equals("getdataguide")) {
|
| 326 |
|
|
PrintWriter out = response.getWriter();
|
| 327 |
|
|
handleGetDataGuideAction(out, params, response);
|
| 328 |
|
|
} else if (action.equals("getlastdocid")) {
|
| 329 |
|
|
PrintWriter out = response.getWriter();
|
| 330 |
847
|
jones
|
handleGetMaxDocidAction(out, params, response);
|
| 331 |
798
|
jones
|
} else if (action.equals("login") || action.equals("logout")) {
|
| 332 |
|
|
} else if (action.equals("protocoltest")) {
|
| 333 |
|
|
String testURL = "metacat://dev.nceas.ucsb.edu/NCEAS.897766.9";
|
| 334 |
|
|
try {
|
| 335 |
|
|
testURL = ((String[])params.get("url"))[0];
|
| 336 |
|
|
} catch (Throwable t) {
|
| 337 |
|
|
}
|
| 338 |
|
|
String phandler = System.getProperty("java.protocol.handler.pkgs");
|
| 339 |
|
|
response.setContentType("text/html");
|
| 340 |
|
|
PrintWriter out = response.getWriter();
|
| 341 |
|
|
out.println("<body bgcolor=\"white\">");
|
| 342 |
|
|
out.println("<p>Handler property: <code>" + phandler + "</code></p>");
|
| 343 |
|
|
out.println("<p>Starting test for:<br>");
|
| 344 |
|
|
out.println(" " + testURL + "</p>");
|
| 345 |
|
|
try {
|
| 346 |
|
|
URL u = new URL(testURL);
|
| 347 |
|
|
out.println("<pre>");
|
| 348 |
|
|
out.println("Protocol: " + u.getProtocol());
|
| 349 |
|
|
out.println(" Host: " + u.getHost());
|
| 350 |
|
|
out.println(" Port: " + u.getPort());
|
| 351 |
|
|
out.println(" Path: " + u.getPath());
|
| 352 |
|
|
out.println(" Ref: " + u.getRef());
|
| 353 |
|
|
String pquery = u.getQuery();
|
| 354 |
|
|
out.println(" Query: " + pquery);
|
| 355 |
|
|
out.println(" Params: ");
|
| 356 |
|
|
if (pquery != null) {
|
| 357 |
|
|
Hashtable qparams = util.parseQuery(u.getQuery());
|
| 358 |
|
|
for (Enumeration en = qparams.keys(); en.hasMoreElements(); ) {
|
| 359 |
|
|
String pname = (String)en.nextElement();
|
| 360 |
|
|
String pvalue = (String)qparams.get(pname);
|
| 361 |
|
|
out.println(" " + pname + ": " + pvalue);
|
| 362 |
|
|
}
|
| 363 |
566
|
jones
|
}
|
| 364 |
798
|
jones
|
out.println("</pre>");
|
| 365 |
|
|
out.println("</body>");
|
| 366 |
|
|
out.close();
|
| 367 |
|
|
} catch (MalformedURLException mue) {
|
| 368 |
|
|
System.out.println("bad url from MetacatServlet.handleGetOrPost");
|
| 369 |
|
|
out.println(mue.getMessage());
|
| 370 |
|
|
mue.printStackTrace(out);
|
| 371 |
|
|
out.close();
|
| 372 |
566
|
jones
|
}
|
| 373 |
798
|
jones
|
} else {
|
| 374 |
|
|
PrintWriter out = response.getWriter();
|
| 375 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
| 376 |
|
|
out.println("<error>");
|
| 377 |
|
|
out.println("Error: action not registered. Please report this error.");
|
| 378 |
|
|
out.println("</error>");
|
| 379 |
566
|
jones
|
}
|
| 380 |
798
|
jones
|
|
| 381 |
|
|
util.closeConnections();
|
| 382 |
|
|
// Close the stream to the client
|
| 383 |
|
|
// out.close();
|
| 384 |
46
|
jones
|
}
|
| 385 |
|
|
}
|
| 386 |
355
|
berkley
|
|
| 387 |
731
|
bojilova
|
// LOGIN & LOGOUT SECTION
|
| 388 |
50
|
jones
|
/**
|
| 389 |
509
|
bojilova
|
* Handle the login request. Create a new session object.
|
| 390 |
503
|
bojilova
|
* Do user authentication through the session.
|
| 391 |
210
|
bojilova
|
*/
|
| 392 |
|
|
private void handleLoginAction(PrintWriter out, Hashtable params,
|
| 393 |
|
|
HttpServletRequest request, HttpServletResponse response) {
|
| 394 |
251
|
bojilova
|
|
| 395 |
503
|
bojilova
|
AuthSession sess = null;
|
| 396 |
228
|
bojilova
|
String un = ((String[])params.get("username"))[0];
|
| 397 |
|
|
String pw = ((String[])params.get("password"))[0];
|
| 398 |
297
|
bojilova
|
String action = ((String[])params.get("action"))[0];
|
| 399 |
509
|
bojilova
|
String qformat = ((String[])params.get("qformat"))[0];
|
| 400 |
332
|
bojilova
|
|
| 401 |
297
|
bojilova
|
try {
|
| 402 |
509
|
bojilova
|
sess = new AuthSession();
|
| 403 |
297
|
bojilova
|
} catch (Exception e) {
|
| 404 |
675
|
berkley
|
System.out.println("error in MetacatServlet.handleLoginAction: " +
|
| 405 |
|
|
e.getMessage());
|
| 406 |
297
|
bojilova
|
out.println(e.getMessage());
|
| 407 |
509
|
bojilova
|
return;
|
| 408 |
297
|
bojilova
|
}
|
| 409 |
411
|
bojilova
|
|
| 410 |
509
|
bojilova
|
boolean isValid = sess.authenticate(request, un, pw);
|
| 411 |
|
|
|
| 412 |
|
|
// format and transform the output
|
| 413 |
832
|
jones
|
if (qformat.equals("xml")) {
|
| 414 |
|
|
response.setContentType("text/xml");
|
| 415 |
|
|
out.println(sess.getMessage());
|
| 416 |
|
|
} else {
|
| 417 |
509
|
bojilova
|
Connection conn = null;
|
| 418 |
503
|
bojilova
|
try {
|
| 419 |
509
|
bojilova
|
conn = util.getConnection();
|
| 420 |
|
|
DBTransform trans = new DBTransform(conn);
|
| 421 |
|
|
response.setContentType("text/html");
|
| 422 |
510
|
bojilova
|
trans.transformXMLDocument(sess.getMessage(), "-//NCEAS//login//EN",
|
| 423 |
832
|
jones
|
"-//W3C//HTML//EN", qformat, out);
|
| 424 |
509
|
bojilova
|
util.returnConnection(conn);
|
| 425 |
|
|
} catch(Exception e) {
|
| 426 |
|
|
util.returnConnection(conn);
|
| 427 |
|
|
}
|
| 428 |
|
|
|
| 429 |
|
|
// any output is returned
|
| 430 |
503
|
bojilova
|
}
|
| 431 |
370
|
berkley
|
}
|
| 432 |
509
|
bojilova
|
|
| 433 |
|
|
/**
|
| 434 |
|
|
* Handle the logout request. Close the connection.
|
| 435 |
|
|
*/
|
| 436 |
|
|
private void handleLogoutAction(PrintWriter out, Hashtable params,
|
| 437 |
|
|
HttpServletRequest request, HttpServletResponse response) {
|
| 438 |
|
|
|
| 439 |
|
|
String qformat = ((String[])params.get("qformat"))[0];
|
| 440 |
|
|
|
| 441 |
|
|
// close the connection
|
| 442 |
|
|
HttpSession sess = request.getSession(false);
|
| 443 |
|
|
if (sess != null) { sess.invalidate(); }
|
| 444 |
|
|
|
| 445 |
|
|
// produce output
|
| 446 |
|
|
StringBuffer output = new StringBuffer();
|
| 447 |
|
|
output.append("<?xml version=\"1.0\"?>");
|
| 448 |
510
|
bojilova
|
output.append("<logout>");
|
| 449 |
|
|
output.append("User logged out");
|
| 450 |
|
|
output.append("</logout>");
|
| 451 |
509
|
bojilova
|
|
| 452 |
|
|
//format and transform the output
|
| 453 |
832
|
jones
|
if (qformat.equals("xml")) {
|
| 454 |
|
|
response.setContentType("text/xml");
|
| 455 |
|
|
out.println(output.toString());
|
| 456 |
|
|
} else {
|
| 457 |
509
|
bojilova
|
Connection conn = null;
|
| 458 |
|
|
try {
|
| 459 |
|
|
conn = util.getConnection();
|
| 460 |
|
|
DBTransform trans = new DBTransform(conn);
|
| 461 |
|
|
response.setContentType("text/html");
|
| 462 |
510
|
bojilova
|
trans.transformXMLDocument(output.toString(), "-//NCEAS//login//EN",
|
| 463 |
832
|
jones
|
"-//W3C//HTML//EN", qformat, out);
|
| 464 |
509
|
bojilova
|
util.returnConnection(conn);
|
| 465 |
|
|
} catch(Exception e) {
|
| 466 |
|
|
util.returnConnection(conn);
|
| 467 |
|
|
}
|
| 468 |
|
|
}
|
| 469 |
|
|
}
|
| 470 |
731
|
bojilova
|
// END OF LOGIN & LOGOUT SECTION
|
| 471 |
370
|
berkley
|
|
| 472 |
731
|
bojilova
|
// SQUERY & QUERY SECTION
|
| 473 |
373
|
berkley
|
/**
|
| 474 |
380
|
jones
|
* Retreive the squery xml, execute it and display it
|
| 475 |
|
|
*
|
| 476 |
|
|
* @param out the output stream to the client
|
| 477 |
|
|
* @param params the Hashtable of parameters that should be included
|
| 478 |
|
|
* in the squery.
|
| 479 |
|
|
* @param response the response object linked to the client
|
| 480 |
|
|
* @param conn the database connection
|
| 481 |
|
|
*/
|
| 482 |
|
|
protected void handleSQuery(PrintWriter out, Hashtable params,
|
| 483 |
802
|
bojilova
|
HttpServletResponse response, String user, String[] groups)
|
| 484 |
373
|
berkley
|
{
|
| 485 |
380
|
jones
|
String xmlquery = ((String[])params.get("query"))[0];
|
| 486 |
|
|
String qformat = ((String[])params.get("qformat"))[0];
|
| 487 |
465
|
berkley
|
String resultdoc = null;
|
| 488 |
|
|
|
| 489 |
802
|
bojilova
|
Hashtable doclist = runQuery(xmlquery, user, groups);
|
| 490 |
444
|
berkley
|
|
| 491 |
465
|
berkley
|
resultdoc = createResultDocument(doclist, transformQuery(xmlquery));
|
| 492 |
|
|
|
| 493 |
380
|
jones
|
//format and transform the results
|
| 494 |
832
|
jones
|
if(qformat.equals("xml")) {
|
| 495 |
380
|
jones
|
response.setContentType("text/xml");
|
| 496 |
|
|
out.println(resultdoc);
|
| 497 |
|
|
} else {
|
| 498 |
832
|
jones
|
transformResultset(resultdoc, response, out, qformat);
|
| 499 |
380
|
jones
|
}
|
| 500 |
341
|
berkley
|
}
|
| 501 |
|
|
|
| 502 |
|
|
/**
|
| 503 |
380
|
jones
|
* Create the xml query, execute it and display the results.
|
| 504 |
|
|
*
|
| 505 |
|
|
* @param out the output stream to the client
|
| 506 |
|
|
* @param params the Hashtable of parameters that should be included
|
| 507 |
370
|
berkley
|
* in the squery.
|
| 508 |
380
|
jones
|
* @param response the response object linked to the client
|
| 509 |
370
|
berkley
|
*/
|
| 510 |
375
|
berkley
|
protected void handleQuery(PrintWriter out, Hashtable params,
|
| 511 |
802
|
bojilova
|
HttpServletResponse response, String user, String[] groups)
|
| 512 |
341
|
berkley
|
{
|
| 513 |
370
|
berkley
|
//create the query and run it
|
| 514 |
373
|
berkley
|
String xmlquery = DBQuery.createSQuery(params);
|
| 515 |
802
|
bojilova
|
Hashtable doclist = runQuery(xmlquery, user, groups);
|
| 516 |
465
|
berkley
|
String qformat = ((String[])params.get("qformat"))[0];
|
| 517 |
|
|
String resultdoc = null;
|
| 518 |
|
|
|
| 519 |
|
|
resultdoc = createResultDocument(doclist, transformQuery(params));
|
| 520 |
425
|
bojilova
|
|
| 521 |
370
|
berkley
|
//format and transform the results
|
| 522 |
832
|
jones
|
if(qformat.equals("xml")) {
|
| 523 |
370
|
berkley
|
response.setContentType("text/xml");
|
| 524 |
|
|
out.println(resultdoc);
|
| 525 |
443
|
berkley
|
} else {
|
| 526 |
832
|
jones
|
transformResultset(resultdoc, response, out, qformat);
|
| 527 |
370
|
berkley
|
}
|
| 528 |
341
|
berkley
|
}
|
| 529 |
|
|
|
| 530 |
|
|
/**
|
| 531 |
384
|
berkley
|
* Removes the <?xml version="x"?> tag from the beginning of xmlquery
|
| 532 |
|
|
* so it can properly be placed in the <query> tag of the resultset.
|
| 533 |
|
|
* This method is overwritable so that other applications can customize
|
| 534 |
|
|
* the structure of what is in the <query> tag.
|
| 535 |
|
|
*
|
| 536 |
|
|
* @param xmlquery is the query to remove the <?xml version="x"?> tag from.
|
| 537 |
|
|
*/
|
| 538 |
|
|
protected String transformQuery(Hashtable params)
|
| 539 |
|
|
{
|
| 540 |
|
|
//DBQuery.createSQuery is a re-calling of a previously called
|
| 541 |
|
|
//function but it is necessary
|
| 542 |
|
|
//so that overriding methods have access to the params hashtable
|
| 543 |
|
|
String xmlquery = DBQuery.createSQuery(params);
|
| 544 |
|
|
//the <?xml version="1.0"?> tag is the first 22 characters of the
|
| 545 |
|
|
xmlquery = xmlquery.trim();
|
| 546 |
|
|
int index = xmlquery.indexOf("?>");
|
| 547 |
|
|
return xmlquery.substring(index + 2, xmlquery.length());
|
| 548 |
|
|
}
|
| 549 |
|
|
|
| 550 |
|
|
/**
|
| 551 |
443
|
berkley
|
* removes the <?xml version="1.0"?> tag from the beginning. This takes a
|
| 552 |
|
|
* string as a param instead of a hashtable.
|
| 553 |
|
|
*
|
| 554 |
|
|
* @param xmlquery a string representing a query.
|
| 555 |
|
|
*/
|
| 556 |
|
|
protected String transformQuery(String xmlquery)
|
| 557 |
|
|
{
|
| 558 |
|
|
xmlquery = xmlquery.trim();
|
| 559 |
|
|
int index = xmlquery.indexOf("?>");
|
| 560 |
|
|
return xmlquery.substring(index + 2, xmlquery.length());
|
| 561 |
|
|
}
|
| 562 |
|
|
|
| 563 |
|
|
/**
|
| 564 |
380
|
jones
|
* Run the query and return a hashtable of results.
|
| 565 |
|
|
*
|
| 566 |
|
|
* @param xmlquery the query to run
|
| 567 |
|
|
*/
|
| 568 |
802
|
bojilova
|
private Hashtable runQuery(String xmlquery, String user, String[] groups)
|
| 569 |
341
|
berkley
|
{
|
| 570 |
|
|
Hashtable doclist=null;
|
| 571 |
|
|
Connection conn = null;
|
| 572 |
|
|
try
|
| 573 |
|
|
{
|
| 574 |
441
|
bojilova
|
conn = util.getConnection();
|
| 575 |
|
|
DBQuery queryobj = new DBQuery(conn, saxparser);
|
| 576 |
802
|
bojilova
|
doclist = queryobj.findDocuments(new StringReader(xmlquery),user,groups);
|
| 577 |
441
|
bojilova
|
util.returnConnection(conn);
|
| 578 |
|
|
return doclist;
|
| 579 |
341
|
berkley
|
}
|
| 580 |
|
|
catch (Exception e)
|
| 581 |
|
|
{
|
| 582 |
441
|
bojilova
|
util.returnConnection(conn);
|
| 583 |
675
|
berkley
|
util.debugMessage("Error in MetacatServlet.runQuery: " + e.getMessage());
|
| 584 |
341
|
berkley
|
doclist = null;
|
| 585 |
|
|
return doclist;
|
| 586 |
|
|
}
|
| 587 |
|
|
}
|
| 588 |
|
|
|
| 589 |
380
|
jones
|
/**
|
| 590 |
370
|
berkley
|
* Transorms an xml resultset document to html and sends it to the browser
|
| 591 |
380
|
jones
|
*
|
| 592 |
370
|
berkley
|
* @param resultdoc the string representation of the document that needs
|
| 593 |
|
|
* to be transformed.
|
| 594 |
|
|
* @param response the HttpServletResponse object bound to the client.
|
| 595 |
|
|
* @param out the output stream to the client
|
| 596 |
832
|
jones
|
* @param qformat the name of the style-set to use for transformations
|
| 597 |
375
|
berkley
|
*/
|
| 598 |
|
|
protected void transformResultset(String resultdoc,
|
| 599 |
380
|
jones
|
HttpServletResponse response,
|
| 600 |
832
|
jones
|
PrintWriter out, String qformat)
|
| 601 |
370
|
berkley
|
{
|
| 602 |
|
|
Connection conn = null;
|
| 603 |
380
|
jones
|
try {
|
| 604 |
370
|
berkley
|
conn = util.getConnection();
|
| 605 |
|
|
DBTransform trans = new DBTransform(conn);
|
| 606 |
|
|
response.setContentType("text/html");
|
| 607 |
|
|
trans.transformXMLDocument(resultdoc, "-//NCEAS//resultset//EN",
|
| 608 |
832
|
jones
|
"-//W3C//HTML//EN", qformat, out);
|
| 609 |
382
|
berkley
|
util.returnConnection(conn);
|
| 610 |
|
|
}
|
| 611 |
|
|
catch(Exception e)
|
| 612 |
|
|
{
|
| 613 |
441
|
bojilova
|
util.returnConnection(conn);
|
| 614 |
370
|
berkley
|
}
|
| 615 |
|
|
}
|
| 616 |
|
|
|
| 617 |
355
|
berkley
|
/**
|
| 618 |
|
|
* Transforms a hashtable of documents to an xml or html result.
|
| 619 |
380
|
jones
|
*
|
| 620 |
355
|
berkley
|
* @param doclist- the hashtable to transform
|
| 621 |
744
|
jones
|
* @param xmlquery- the query that returned the doclist result
|
| 622 |
355
|
berkley
|
*/
|
| 623 |
375
|
berkley
|
protected String createResultDocument(Hashtable doclist, String xmlquery)
|
| 624 |
341
|
berkley
|
{
|
| 625 |
|
|
// Create a buffer to hold the xml result
|
| 626 |
|
|
StringBuffer resultset = new StringBuffer();
|
| 627 |
|
|
|
| 628 |
382
|
berkley
|
// Print the resulting root nodes
|
| 629 |
341
|
berkley
|
String docid = null;
|
| 630 |
|
|
String document = null;
|
| 631 |
|
|
resultset.append("<?xml version=\"1.0\"?>\n");
|
| 632 |
|
|
resultset.append("<resultset>\n");
|
| 633 |
465
|
berkley
|
|
| 634 |
384
|
berkley
|
resultset.append(" <query>" + xmlquery + "</query>");
|
| 635 |
478
|
berkley
|
|
| 636 |
|
|
if(doclist != null)
|
| 637 |
341
|
berkley
|
{
|
| 638 |
478
|
berkley
|
Enumeration doclistkeys = doclist.keys();
|
| 639 |
|
|
while (doclistkeys.hasMoreElements())
|
| 640 |
|
|
{
|
| 641 |
|
|
docid = (String)doclistkeys.nextElement();
|
| 642 |
|
|
document = (String)doclist.get(docid);
|
| 643 |
|
|
resultset.append(" <document>" + document + "</document>");
|
| 644 |
|
|
}
|
| 645 |
|
|
}
|
| 646 |
|
|
|
| 647 |
341
|
berkley
|
resultset.append("</resultset>");
|
| 648 |
370
|
berkley
|
return resultset.toString();
|
| 649 |
341
|
berkley
|
}
|
| 650 |
731
|
bojilova
|
// END OF SQUERY & QUERY SECTION
|
| 651 |
437
|
berkley
|
|
| 652 |
731
|
bojilova
|
// READ SECTION
|
| 653 |
|
|
/**
|
| 654 |
|
|
* Handle the "read" request of metadata/data files from Metacat
|
| 655 |
|
|
* or any files from Internet;
|
| 656 |
|
|
* transformed metadata XML document into HTML presentation if requested;
|
| 657 |
|
|
* zip files when more than one were requested.
|
| 658 |
|
|
*
|
| 659 |
|
|
* @param params the Hashtable of HTTP request parameters
|
| 660 |
|
|
* @param response the HTTP response object linked to the client
|
| 661 |
|
|
* @param user the username sent the request
|
| 662 |
802
|
bojilova
|
* @param groups the user's groupnames
|
| 663 |
437
|
berkley
|
*/
|
| 664 |
731
|
bojilova
|
private void handleReadAction(Hashtable params, HttpServletResponse response,
|
| 665 |
802
|
bojilova
|
String user, String[] groups)
|
| 666 |
437
|
berkley
|
{
|
| 667 |
731
|
bojilova
|
ServletOutputStream out = null;
|
| 668 |
|
|
ZipOutputStream zout = null;
|
| 669 |
|
|
|
| 670 |
|
|
try {
|
| 671 |
|
|
String[] docs = new String[0];
|
| 672 |
|
|
String docid = "";
|
| 673 |
|
|
String qformat = "";
|
| 674 |
|
|
String abstrpath = null;
|
| 675 |
|
|
boolean zip = false;
|
| 676 |
|
|
// read the params
|
| 677 |
|
|
if (params.containsKey("docid")) {
|
| 678 |
|
|
docs = (String[])params.get("docid");
|
| 679 |
437
|
berkley
|
}
|
| 680 |
731
|
bojilova
|
if (params.containsKey("qformat")) {
|
| 681 |
|
|
qformat = ((String[])params.get("qformat"))[0];
|
| 682 |
437
|
berkley
|
}
|
| 683 |
731
|
bojilova
|
if (params.containsKey("abstractpath")) {
|
| 684 |
|
|
abstrpath = ((String[])params.get("abstractpath"))[0];
|
| 685 |
738
|
bojilova
|
if ( !abstrpath.equals("") && (abstrpath != null) ) {
|
| 686 |
|
|
viewAbstract(response, abstrpath, docs[0]);
|
| 687 |
|
|
return;
|
| 688 |
|
|
}
|
| 689 |
437
|
berkley
|
}
|
| 690 |
731
|
bojilova
|
if ( (docs.length > 1) || qformat.equals("zip") ) {
|
| 691 |
|
|
zip = true;
|
| 692 |
|
|
out = response.getOutputStream();
|
| 693 |
|
|
response.setContentType("application/zip"); //MIME type
|
| 694 |
|
|
zout = new ZipOutputStream(out);
|
| 695 |
|
|
}
|
| 696 |
|
|
// go through the list of docs to read
|
| 697 |
|
|
for (int i=0; i < docs.length; i++ ) {
|
| 698 |
|
|
try {
|
| 699 |
|
|
|
| 700 |
|
|
URL murl = new URL(docs[i]);
|
| 701 |
|
|
Hashtable murlQueryStr = util.parseQuery(murl.getQuery());
|
| 702 |
|
|
// case docid="http://.../?docid=aaa"
|
| 703 |
|
|
// or docid="metacat://.../?docid=bbb"
|
| 704 |
|
|
if (murlQueryStr.containsKey("docid")) {
|
| 705 |
|
|
// get only docid, eliminate the rest
|
| 706 |
|
|
docid = (String)murlQueryStr.get("docid");
|
| 707 |
|
|
if ( zip ) {
|
| 708 |
|
|
addDocToZip(docid, zout);
|
| 709 |
|
|
} else {
|
| 710 |
|
|
readFromMetacat(response, docid, qformat, abstrpath,
|
| 711 |
802
|
bojilova
|
user, groups, zip, zout);
|
| 712 |
731
|
bojilova
|
}
|
| 713 |
|
|
|
| 714 |
|
|
// case docid="http://.../filename"
|
| 715 |
|
|
} else {
|
| 716 |
|
|
docid = docs[i];
|
| 717 |
|
|
if ( zip ) {
|
| 718 |
|
|
addDocToZip(docid, zout);
|
| 719 |
|
|
} else {
|
| 720 |
|
|
readFromURLConnection(response, docid);
|
| 721 |
|
|
}
|
| 722 |
|
|
}
|
| 723 |
|
|
|
| 724 |
|
|
// case docid="ccc"
|
| 725 |
|
|
} catch (MalformedURLException mue) {
|
| 726 |
|
|
docid = docs[i];
|
| 727 |
|
|
if ( zip ) {
|
| 728 |
|
|
addDocToZip(docid, zout);
|
| 729 |
|
|
} else {
|
| 730 |
|
|
readFromMetacat(response, docid, qformat, abstrpath,
|
| 731 |
802
|
bojilova
|
user, groups, zip, zout);
|
| 732 |
731
|
bojilova
|
}
|
| 733 |
|
|
}
|
| 734 |
|
|
|
| 735 |
|
|
} /* end for */
|
| 736 |
|
|
|
| 737 |
|
|
if ( zip ) {
|
| 738 |
|
|
zout.finish(); //terminate the zip file
|
| 739 |
|
|
zout.close(); //close the zip stream
|
| 740 |
|
|
}
|
| 741 |
|
|
|
| 742 |
845
|
jones
|
/*
|
| 743 |
|
|
} catch (ClassNotFoundException cnfe) {
|
| 744 |
|
|
} catch (IOException ioe1) {
|
| 745 |
|
|
} catch (SQLException se) {
|
| 746 |
|
|
} catch (McdbException mcdbe) {
|
| 747 |
731
|
bojilova
|
} catch (Exception e) {
|
| 748 |
845
|
jones
|
*/
|
| 749 |
|
|
} catch (Exception e) {
|
| 750 |
731
|
bojilova
|
try {
|
| 751 |
845
|
jones
|
response.setContentType("text/xml"); //MIME type
|
| 752 |
|
|
//PrintWriter pw = response.getWriter();
|
| 753 |
|
|
if (out != null) {
|
| 754 |
|
|
PrintWriter pw = new PrintWriter(out);
|
| 755 |
|
|
pw.println("<?xml version=\"1.0\"?>");
|
| 756 |
|
|
pw.println("<error>");
|
| 757 |
|
|
pw.println(e.getMessage());
|
| 758 |
|
|
pw.println("</error>");
|
| 759 |
|
|
pw.close();
|
| 760 |
|
|
}
|
| 761 |
|
|
//if ( out != null ) { out.close(); }
|
| 762 |
731
|
bojilova
|
if ( zout != null ) { zout.close(); }
|
| 763 |
|
|
} catch (IOException ioe) {
|
| 764 |
|
|
System.out.println("Problem with the servlet output " +
|
| 765 |
|
|
"in MetacatServlet.handleReadAction: " +
|
| 766 |
|
|
ioe.getMessage());
|
| 767 |
|
|
ioe.printStackTrace(System.out);
|
| 768 |
|
|
|
| 769 |
|
|
}
|
| 770 |
|
|
|
| 771 |
|
|
System.out.println("Error in MetacatServlet.handleReadAction: " +
|
| 772 |
675
|
berkley
|
e.getMessage());
|
| 773 |
731
|
bojilova
|
e.printStackTrace(System.out);
|
| 774 |
437
|
berkley
|
}
|
| 775 |
|
|
|
| 776 |
|
|
}
|
| 777 |
731
|
bojilova
|
|
| 778 |
|
|
// read metadata or data from Metacat
|
| 779 |
|
|
private void readFromMetacat(HttpServletResponse response, String docid,
|
| 780 |
|
|
String qformat, String abstrpath, String user,
|
| 781 |
802
|
bojilova
|
String[] groups, boolean zip, ZipOutputStream zout)
|
| 782 |
731
|
bojilova
|
throws ClassNotFoundException, IOException, SQLException,
|
| 783 |
|
|
McdbException, Exception
|
| 784 |
453
|
berkley
|
{
|
| 785 |
|
|
Connection conn = null;
|
| 786 |
731
|
bojilova
|
try {
|
| 787 |
|
|
conn = util.getConnection();
|
| 788 |
|
|
DocumentImpl doc = new DocumentImpl(conn, docid);
|
| 789 |
453
|
berkley
|
|
| 790 |
731
|
bojilova
|
if ( doc.getRootNodeID() == 0 ) {
|
| 791 |
|
|
// this is data file
|
| 792 |
|
|
ServletOutputStream out = response.getOutputStream();
|
| 793 |
|
|
String filepath = util.getOption("datafilepath");
|
| 794 |
|
|
if(!filepath.endsWith("/")) {
|
| 795 |
|
|
filepath += "/";
|
| 796 |
|
|
}
|
| 797 |
846
|
berkley
|
String filename = filepath + docid; //MIME type
|
| 798 |
731
|
bojilova
|
String contentType = getServletContext().getMimeType(filename);
|
| 799 |
|
|
if (contentType == null) {
|
| 800 |
|
|
if (filename.endsWith(".xml")) {
|
| 801 |
|
|
contentType="text/xml";
|
| 802 |
|
|
} else if (filename.endsWith(".css")) {
|
| 803 |
|
|
contentType="text/css";
|
| 804 |
|
|
} else if (filename.endsWith(".dtd")) {
|
| 805 |
|
|
contentType="text/plain";
|
| 806 |
|
|
} else if (filename.endsWith(".xsd")) {
|
| 807 |
733
|
bojilova
|
contentType="text/xml";
|
| 808 |
731
|
bojilova
|
} else if (filename.endsWith("/")) {
|
| 809 |
733
|
bojilova
|
contentType="text/html";
|
| 810 |
731
|
bojilova
|
} else {
|
| 811 |
733
|
bojilova
|
File f = new File(filename);
|
| 812 |
|
|
if ( f.isDirectory() ) {
|
| 813 |
|
|
contentType="text/html";
|
| 814 |
|
|
} else {
|
| 815 |
|
|
contentType="application/octet-stream";
|
| 816 |
|
|
}
|
| 817 |
453
|
berkley
|
}
|
| 818 |
|
|
}
|
| 819 |
731
|
bojilova
|
response.setContentType(contentType);
|
| 820 |
733
|
bojilova
|
// if we decide to use "application/octet-stream" for all data returns
|
| 821 |
|
|
// response.setContentType("application/octet-stream");
|
| 822 |
731
|
bojilova
|
FileInputStream fin = null;
|
| 823 |
|
|
try {
|
| 824 |
|
|
fin = new FileInputStream(filename);
|
| 825 |
|
|
byte[] buf = new byte[4 * 1024]; // 4K buffer
|
| 826 |
|
|
int b = fin.read(buf);
|
| 827 |
|
|
while (b != -1) {
|
| 828 |
|
|
out.write(buf, 0, b);
|
| 829 |
|
|
b = fin.read(buf);
|
| 830 |
453
|
berkley
|
}
|
| 831 |
731
|
bojilova
|
} finally {
|
| 832 |
|
|
if (fin != null) fin.close();
|
| 833 |
453
|
berkley
|
}
|
| 834 |
731
|
bojilova
|
|
| 835 |
|
|
} else {
|
| 836 |
|
|
// this is metadata doc
|
| 837 |
832
|
jones
|
if ( qformat.equals("xml") ) {
|
| 838 |
|
|
// set content type first
|
| 839 |
|
|
response.setContentType("text/xml"); //MIME type
|
| 840 |
|
|
PrintWriter out = response.getWriter();
|
| 841 |
|
|
doc.toXml(out);
|
| 842 |
|
|
} else {
|
| 843 |
731
|
bojilova
|
response.setContentType("text/html"); //MIME type
|
| 844 |
|
|
PrintWriter out = response.getWriter();
|
| 845 |
|
|
|
| 846 |
|
|
// Look up the document type
|
| 847 |
|
|
String doctype = doc.getDoctype();
|
| 848 |
|
|
// Transform the document to the new doctype
|
| 849 |
|
|
DBTransform dbt = new DBTransform(conn);
|
| 850 |
|
|
dbt.transformXMLDocument(doc.toString(),
|
| 851 |
832
|
jones
|
doctype,"-//W3C//HTML//EN", qformat, out);
|
| 852 |
731
|
bojilova
|
}
|
| 853 |
|
|
|
| 854 |
453
|
berkley
|
}
|
| 855 |
731
|
bojilova
|
} finally {
|
| 856 |
|
|
util.returnConnection(conn);
|
| 857 |
|
|
}
|
| 858 |
|
|
|
| 859 |
|
|
}
|
| 860 |
453
|
berkley
|
|
| 861 |
731
|
bojilova
|
// read data from URLConnection
|
| 862 |
|
|
private void readFromURLConnection(HttpServletResponse response, String docid)
|
| 863 |
|
|
throws IOException, MalformedURLException
|
| 864 |
566
|
jones
|
{
|
| 865 |
731
|
bojilova
|
ServletOutputStream out = response.getOutputStream();
|
| 866 |
|
|
String contentType = getServletContext().getMimeType(docid); //MIME type
|
| 867 |
|
|
if (contentType == null) {
|
| 868 |
|
|
if (docid.endsWith(".xml")) {
|
| 869 |
|
|
contentType="text/xml";
|
| 870 |
|
|
} else if (docid.endsWith(".css")) {
|
| 871 |
|
|
contentType="text/css";
|
| 872 |
|
|
} else if (docid.endsWith(".dtd")) {
|
| 873 |
|
|
contentType="text/plain";
|
| 874 |
|
|
} else if (docid.endsWith(".xsd")) {
|
| 875 |
733
|
bojilova
|
contentType="text/xml";
|
| 876 |
731
|
bojilova
|
} else if (docid.endsWith("/")) {
|
| 877 |
733
|
bojilova
|
contentType="text/html";
|
| 878 |
731
|
bojilova
|
} else {
|
| 879 |
733
|
bojilova
|
File f = new File(docid);
|
| 880 |
|
|
if ( f.isDirectory() ) {
|
| 881 |
|
|
contentType="text/html";
|
| 882 |
|
|
} else {
|
| 883 |
|
|
contentType="application/octet-stream";
|
| 884 |
|
|
}
|
| 885 |
731
|
bojilova
|
}
|
| 886 |
|
|
}
|
| 887 |
|
|
response.setContentType(contentType);
|
| 888 |
733
|
bojilova
|
// if we decide to use "application/octet-stream" for all data returns
|
| 889 |
|
|
// response.setContentType("application/octet-stream");
|
| 890 |
731
|
bojilova
|
|
| 891 |
|
|
// this is http url
|
| 892 |
|
|
URL url = new URL(docid);
|
| 893 |
|
|
BufferedInputStream bis = null;
|
| 894 |
566
|
jones
|
try {
|
| 895 |
731
|
bojilova
|
bis = new BufferedInputStream(url.openStream());
|
| 896 |
|
|
byte[] buf = new byte[4 * 1024]; // 4K buffer
|
| 897 |
|
|
int b = bis.read(buf);
|
| 898 |
|
|
while (b != -1) {
|
| 899 |
|
|
out.write(buf, 0, b);
|
| 900 |
|
|
b = bis.read(buf);
|
| 901 |
636
|
berkley
|
}
|
| 902 |
731
|
bojilova
|
} finally {
|
| 903 |
|
|
if (bis != null) bis.close();
|
| 904 |
566
|
jones
|
}
|
| 905 |
731
|
bojilova
|
|
| 906 |
566
|
jones
|
}
|
| 907 |
636
|
berkley
|
|
| 908 |
731
|
bojilova
|
// read file/doc and write to ZipOutputStream
|
| 909 |
|
|
private void addDocToZip(String docid, ZipOutputStream zout)
|
| 910 |
|
|
throws ClassNotFoundException, IOException, SQLException,
|
| 911 |
|
|
McdbException, Exception
|
| 912 |
636
|
berkley
|
{
|
| 913 |
731
|
bojilova
|
byte[] bytestring = null;
|
| 914 |
|
|
ZipEntry zentry = null;
|
| 915 |
|
|
|
| 916 |
|
|
try {
|
| 917 |
|
|
URL url = new URL(docid);
|
| 918 |
|
|
|
| 919 |
|
|
// this http url; read from URLConnection; add to zip
|
| 920 |
|
|
zentry = new ZipEntry(docid);
|
| 921 |
|
|
zout.putNextEntry(zentry);
|
| 922 |
|
|
BufferedInputStream bis = null;
|
| 923 |
|
|
try {
|
| 924 |
|
|
bis = new BufferedInputStream(url.openStream());
|
| 925 |
|
|
byte[] buf = new byte[4 * 1024]; // 4K buffer
|
| 926 |
|
|
int b = bis.read(buf);
|
| 927 |
|
|
while(b != -1) {
|
| 928 |
|
|
zout.write(buf, 0, b);
|
| 929 |
|
|
b = bis.read(buf);
|
| 930 |
|
|
}
|
| 931 |
|
|
} finally {
|
| 932 |
|
|
if (bis != null) bis.close();
|
| 933 |
636
|
berkley
|
}
|
| 934 |
731
|
bojilova
|
zout.closeEntry();
|
| 935 |
|
|
|
| 936 |
|
|
} catch (MalformedURLException mue) {
|
| 937 |
661
|
berkley
|
|
| 938 |
731
|
bojilova
|
// this is metacat doc (data file or metadata doc)
|
| 939 |
|
|
Connection conn = null;
|
| 940 |
|
|
try {
|
| 941 |
|
|
conn = util.getConnection();
|
| 942 |
|
|
DocumentImpl doc = new DocumentImpl(conn, docid);
|
| 943 |
661
|
berkley
|
|
| 944 |
731
|
bojilova
|
if ( doc.getRootNodeID() == 0 ) {
|
| 945 |
|
|
// this is data file; add file to zip
|
| 946 |
|
|
String filepath = util.getOption("datafilepath");
|
| 947 |
|
|
if(!filepath.endsWith("/")) {
|
| 948 |
|
|
filepath += "/";
|
| 949 |
|
|
}
|
| 950 |
|
|
String filename = filepath + doc.getDocname();
|
| 951 |
|
|
zentry = new ZipEntry(filename);
|
| 952 |
|
|
zout.putNextEntry(zentry);
|
| 953 |
|
|
FileInputStream fin = null;
|
| 954 |
|
|
try {
|
| 955 |
|
|
fin = new FileInputStream(filename);
|
| 956 |
|
|
byte[] buf = new byte[4 * 1024]; // 4K buffer
|
| 957 |
|
|
int b = fin.read(buf);
|
| 958 |
|
|
while (b != -1) {
|
| 959 |
|
|
zout.write(buf, 0, b);
|
| 960 |
|
|
b = fin.read(buf);
|
| 961 |
|
|
}
|
| 962 |
|
|
} finally {
|
| 963 |
|
|
if (fin != null) fin.close();
|
| 964 |
|
|
}
|
| 965 |
|
|
zout.closeEntry();
|
| 966 |
|
|
|
| 967 |
|
|
} else {
|
| 968 |
|
|
// this is metadata doc; add doc to zip
|
| 969 |
|
|
bytestring = doc.toString().getBytes();
|
| 970 |
|
|
zentry = new ZipEntry(docid + ".xml");
|
| 971 |
|
|
zentry.setSize(bytestring.length);
|
| 972 |
|
|
zout.putNextEntry(zentry);
|
| 973 |
|
|
zout.write(bytestring, 0, bytestring.length);
|
| 974 |
|
|
zout.closeEntry();
|
| 975 |
636
|
berkley
|
}
|
| 976 |
731
|
bojilova
|
} finally {
|
| 977 |
|
|
util.returnConnection(conn);
|
| 978 |
636
|
berkley
|
}
|
| 979 |
|
|
|
| 980 |
|
|
}
|
| 981 |
731
|
bojilova
|
|
| 982 |
636
|
berkley
|
}
|
| 983 |
731
|
bojilova
|
|
| 984 |
|
|
// view abstract within document
|
| 985 |
|
|
private void viewAbstract(HttpServletResponse response,
|
| 986 |
|
|
String abstractpath, String docid)
|
| 987 |
|
|
throws ClassNotFoundException, IOException, SQLException,
|
| 988 |
|
|
McdbException, Exception
|
| 989 |
|
|
{
|
| 990 |
309
|
bojilova
|
Connection conn = null;
|
| 991 |
102
|
jones
|
try {
|
| 992 |
309
|
bojilova
|
conn = util.getConnection();
|
| 993 |
731
|
bojilova
|
|
| 994 |
|
|
Object[] abstracts = DBQuery.getNodeContent(abstractpath, docid, conn);
|
| 995 |
|
|
|
| 996 |
|
|
response.setContentType("text/html"); //MIME type
|
| 997 |
|
|
PrintWriter out = response.getWriter();
|
| 998 |
|
|
out.println("<html><head><title>Abstract</title></head>");
|
| 999 |
|
|
out.println("<body bgcolor=\"white\"><h1>Abstract</h1>");
|
| 1000 |
|
|
for (int i=0; i<abstracts.length; i++) {
|
| 1001 |
|
|
out.println("<p>" + (String)abstracts[i] + "</p>");
|
| 1002 |
|
|
}
|
| 1003 |
|
|
out.println("</body></html>");
|
| 1004 |
85
|
jones
|
|
| 1005 |
309
|
bojilova
|
} finally {
|
| 1006 |
320
|
bojilova
|
util.returnConnection(conn);
|
| 1007 |
731
|
bojilova
|
}
|
| 1008 |
49
|
jones
|
}
|
| 1009 |
731
|
bojilova
|
// END OF READ SECTION
|
| 1010 |
|
|
|
| 1011 |
|
|
// INSERT/UPDATE SECTION
|
| 1012 |
55
|
jones
|
/**
|
| 1013 |
|
|
* Handle the database putdocument request and write an XML document
|
| 1014 |
|
|
* to the database connection
|
| 1015 |
|
|
*/
|
| 1016 |
382
|
berkley
|
private void handleInsertOrUpdateAction(PrintWriter out, Hashtable params,
|
| 1017 |
802
|
bojilova
|
HttpServletResponse response, String user, String[] groups) {
|
| 1018 |
59
|
jones
|
|
| 1019 |
309
|
bojilova
|
Connection conn = null;
|
| 1020 |
|
|
|
| 1021 |
204
|
jones
|
try {
|
| 1022 |
|
|
// Get the document indicated
|
| 1023 |
|
|
String[] doctext = (String[])params.get("doctext");
|
| 1024 |
557
|
bojilova
|
|
| 1025 |
680
|
bojilova
|
String pub = null;
|
| 1026 |
|
|
if (params.containsKey("public")) {
|
| 1027 |
|
|
pub = ((String[])params.get("public"))[0];
|
| 1028 |
557
|
bojilova
|
}
|
| 1029 |
680
|
bojilova
|
|
| 1030 |
598
|
bojilova
|
StringReader dtd = null;
|
| 1031 |
680
|
bojilova
|
if (params.containsKey("dtdtext")) {
|
| 1032 |
598
|
bojilova
|
String[] dtdtext = (String[])params.get("dtdtext");
|
| 1033 |
|
|
try {
|
| 1034 |
619
|
bojilova
|
if ( !dtdtext[0].equals("") ) {
|
| 1035 |
|
|
dtd = new StringReader(dtdtext[0]);
|
| 1036 |
|
|
}
|
| 1037 |
598
|
bojilova
|
} catch (NullPointerException npe) {}
|
| 1038 |
|
|
}
|
| 1039 |
557
|
bojilova
|
|
| 1040 |
204
|
jones
|
StringReader xml = null;
|
| 1041 |
695
|
bojilova
|
boolean validate = false;
|
| 1042 |
204
|
jones
|
try {
|
| 1043 |
695
|
bojilova
|
// look inside XML Document for <!DOCTYPE ... PUBLIC/SYSTEM ... >
|
| 1044 |
|
|
// in order to decide whether to use validation parser
|
| 1045 |
|
|
validate = validateXML(doctext[0]);
|
| 1046 |
204
|
jones
|
xml = new StringReader(doctext[0]);
|
| 1047 |
59
|
jones
|
|
| 1048 |
204
|
jones
|
String[] action = (String[])params.get("action");
|
| 1049 |
|
|
String[] docid = (String[])params.get("docid");
|
| 1050 |
|
|
String newdocid = null;
|
| 1051 |
203
|
jones
|
|
| 1052 |
204
|
jones
|
String doAction = null;
|
| 1053 |
|
|
if (action[0].equals("insert")) {
|
| 1054 |
|
|
doAction = "INSERT";
|
| 1055 |
|
|
} else if (action[0].equals("update")) {
|
| 1056 |
|
|
doAction = "UPDATE";
|
| 1057 |
|
|
}
|
| 1058 |
203
|
jones
|
|
| 1059 |
204
|
jones
|
try {
|
| 1060 |
680
|
bojilova
|
// get a connection from the pool
|
| 1061 |
|
|
conn = util.getConnection();
|
| 1062 |
408
|
jones
|
|
| 1063 |
680
|
bojilova
|
// write the document to the database
|
| 1064 |
|
|
try {
|
| 1065 |
|
|
String accNumber = docid[0];
|
| 1066 |
|
|
if (accNumber.equals("")) {
|
| 1067 |
|
|
accNumber = null;
|
| 1068 |
309
|
bojilova
|
}
|
| 1069 |
680
|
bojilova
|
newdocid = DocumentImpl.write(conn, xml, pub, dtd, doAction,
|
| 1070 |
802
|
bojilova
|
accNumber, user, groups, validate);
|
| 1071 |
680
|
bojilova
|
} catch (NullPointerException npe) {
|
| 1072 |
|
|
newdocid = DocumentImpl.write(conn, xml, pub, dtd, doAction,
|
| 1073 |
802
|
bojilova
|
null, user, groups, validate);
|
| 1074 |
680
|
bojilova
|
}
|
| 1075 |
309
|
bojilova
|
} finally {
|
| 1076 |
320
|
bojilova
|
util.returnConnection(conn);
|
| 1077 |
309
|
bojilova
|
}
|
| 1078 |
|
|
|
| 1079 |
204
|
jones
|
// set content type and other response header fields first
|
| 1080 |
|
|
response.setContentType("text/xml");
|
| 1081 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
| 1082 |
|
|
out.println("<success>");
|
| 1083 |
|
|
out.println("<docid>" + newdocid + "</docid>");
|
| 1084 |
|
|
out.println("</success>");
|
| 1085 |
|
|
|
| 1086 |
203
|
jones
|
} catch (NullPointerException npe) {
|
| 1087 |
204
|
jones
|
response.setContentType("text/xml");
|
| 1088 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
| 1089 |
|
|
out.println("<error>");
|
| 1090 |
|
|
out.println(npe.getMessage());
|
| 1091 |
|
|
out.println("</error>");
|
| 1092 |
55
|
jones
|
}
|
| 1093 |
204
|
jones
|
} catch (Exception e) {
|
| 1094 |
|
|
response.setContentType("text/xml");
|
| 1095 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
| 1096 |
|
|
out.println("<error>");
|
| 1097 |
|
|
out.println(e.getMessage());
|
| 1098 |
|
|
if (e instanceof SAXException) {
|
| 1099 |
|
|
Exception e2 = ((SAXException)e).getException();
|
| 1100 |
|
|
out.println("<error>");
|
| 1101 |
780
|
berkley
|
try
|
| 1102 |
|
|
{
|
| 1103 |
|
|
out.println(e2.getMessage());
|
| 1104 |
|
|
}
|
| 1105 |
|
|
catch(NullPointerException npe)
|
| 1106 |
|
|
{
|
| 1107 |
|
|
out.println(e.getMessage());
|
| 1108 |
|
|
}
|
| 1109 |
204
|
jones
|
out.println("</error>");
|
| 1110 |
|
|
}
|
| 1111 |
|
|
//e.printStackTrace(out);
|
| 1112 |
|
|
out.println("</error>");
|
| 1113 |
203
|
jones
|
}
|
| 1114 |
55
|
jones
|
}
|
| 1115 |
203
|
jones
|
|
| 1116 |
|
|
/**
|
| 1117 |
695
|
bojilova
|
* Parse XML Document to look for <!DOCTYPE ... PUBLIC/SYSTEM ... >
|
| 1118 |
|
|
* in order to decide whether to use validation parser
|
| 1119 |
|
|
*/
|
| 1120 |
|
|
private static boolean validateXML(String xmltext) throws IOException {
|
| 1121 |
|
|
|
| 1122 |
|
|
StringReader xmlreader = new StringReader(xmltext);
|
| 1123 |
|
|
StringBuffer cbuff = new StringBuffer();
|
| 1124 |
|
|
java.util.Stack st = new java.util.Stack();
|
| 1125 |
|
|
boolean validate = false;
|
| 1126 |
|
|
int c;
|
| 1127 |
|
|
int inx;
|
| 1128 |
|
|
|
| 1129 |
|
|
// read from the stream until find the keywords
|
| 1130 |
|
|
while ( (st.empty() || st.size()<4) && ((c = xmlreader.read()) != -1) ) {
|
| 1131 |
|
|
cbuff.append((char)c);
|
| 1132 |
|
|
|
| 1133 |
|
|
// "<!DOCTYPE" keyword is found; put it in the stack
|
| 1134 |
|
|
if ( (inx = cbuff.toString().indexOf("<!DOCTYPE")) != -1 ) {
|
| 1135 |
|
|
cbuff = new StringBuffer();
|
| 1136 |
|
|
st.push("<!DOCTYPE");
|
| 1137 |
|
|
}
|
| 1138 |
|
|
// "PUBLIC" keyword is found; put it in the stack
|
| 1139 |
|
|
if ( (inx = cbuff.toString().indexOf("PUBLIC")) != -1 ) {
|
| 1140 |
|
|
cbuff = new StringBuffer();
|
| 1141 |
|
|
st.push("PUBLIC");
|
| 1142 |
|
|
}
|
| 1143 |
|
|
// "SYSTEM" keyword is found; put it in the stack
|
| 1144 |
|
|
if ( (inx = cbuff.toString().indexOf("SYSTEM")) != -1 ) {
|
| 1145 |
|
|
cbuff = new StringBuffer();
|
| 1146 |
|
|
st.push("SYSTEM");
|
| 1147 |
|
|
}
|
| 1148 |
|
|
// ">" character is found; put it in the stack
|
| 1149 |
|
|
// ">" is found twice: fisrt from <?xml ...?>
|
| 1150 |
|
|
// and second from <!DOCTYPE ... >
|
| 1151 |
|
|
if ( (inx = cbuff.toString().indexOf(">")) != -1 ) {
|
| 1152 |
|
|
cbuff = new StringBuffer();
|
| 1153 |
|
|
st.push(">");
|
| 1154 |
|
|
}
|
| 1155 |
|
|
}
|
| 1156 |
|
|
|
| 1157 |
|
|
// close the stream
|
| 1158 |
|
|
xmlreader.close();
|
| 1159 |
|
|
|
| 1160 |
|
|
// check the stack whether it contains the keywords:
|
| 1161 |
|
|
// "<!DOCTYPE", "PUBLIC" or "SYSTEM", and ">" in this order
|
| 1162 |
|
|
if ( st.size() == 4 ) {
|
| 1163 |
|
|
if ( ((String)st.pop()).equals(">") &&
|
| 1164 |
|
|
( ((String)st.peek()).equals("PUBLIC") |
|
| 1165 |
|
|
((String)st.pop()).equals("SYSTEM") ) &&
|
| 1166 |
|
|
((String)st.pop()).equals("<!DOCTYPE") ) {
|
| 1167 |
|
|
validate = true;
|
| 1168 |
|
|
}
|
| 1169 |
|
|
}
|
| 1170 |
|
|
|
| 1171 |
|
|
System.out.println("Validation is " + validate);
|
| 1172 |
|
|
return validate;
|
| 1173 |
|
|
}
|
| 1174 |
731
|
bojilova
|
// END OF INSERT/UPDATE SECTION
|
| 1175 |
695
|
bojilova
|
|
| 1176 |
731
|
bojilova
|
// DELETE SECTION
|
| 1177 |
695
|
bojilova
|
/**
|
| 1178 |
203
|
jones
|
* Handle the database delete request and delete an XML document
|
| 1179 |
|
|
* from the database connection
|
| 1180 |
|
|
*/
|
| 1181 |
|
|
private void handleDeleteAction(PrintWriter out, Hashtable params,
|
| 1182 |
802
|
bojilova
|
HttpServletResponse response, String user, String[] groups) {
|
| 1183 |
203
|
jones
|
|
| 1184 |
|
|
String[] docid = (String[])params.get("docid");
|
| 1185 |
309
|
bojilova
|
Connection conn = null;
|
| 1186 |
203
|
jones
|
|
| 1187 |
|
|
// delete the document from the database
|
| 1188 |
|
|
try {
|
| 1189 |
309
|
bojilova
|
// get a connection from the pool
|
| 1190 |
|
|
conn = util.getConnection();
|
| 1191 |
203
|
jones
|
// NOTE -- NEED TO TEST HERE
|
| 1192 |
408
|
jones
|
// FOR EXISTENCE OF DOCID PARAM
|
| 1193 |
203
|
jones
|
// BEFORE ACCESSING ARRAY
|
| 1194 |
375
|
berkley
|
try {
|
| 1195 |
802
|
bojilova
|
DocumentImpl.delete(conn, docid[0], user, groups);
|
| 1196 |
204
|
jones
|
response.setContentType("text/xml");
|
| 1197 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
| 1198 |
|
|
out.println("<success>");
|
| 1199 |
203
|
jones
|
out.println("Document deleted.");
|
| 1200 |
204
|
jones
|
out.println("</success>");
|
| 1201 |
203
|
jones
|
} catch (AccessionNumberException ane) {
|
| 1202 |
204
|
jones
|
response.setContentType("text/xml");
|
| 1203 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
| 1204 |
|
|
out.println("<error>");
|
| 1205 |
|
|
out.println("Error deleting document!!!");
|
| 1206 |
203
|
jones
|
out.println(ane.getMessage());
|
| 1207 |
204
|
jones
|
out.println("</error>");
|
| 1208 |
203
|
jones
|
}
|
| 1209 |
204
|
jones
|
} catch (Exception e) {
|
| 1210 |
|
|
response.setContentType("text/xml");
|
| 1211 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
| 1212 |
|
|
out.println("<error>");
|
| 1213 |
|
|
out.println(e.getMessage());
|
| 1214 |
|
|
out.println("</error>");
|
| 1215 |
309
|
bojilova
|
} finally {
|
| 1216 |
320
|
bojilova
|
util.returnConnection(conn);
|
| 1217 |
309
|
bojilova
|
}
|
| 1218 |
203
|
jones
|
}
|
| 1219 |
731
|
bojilova
|
// END OF DELETE SECTION
|
| 1220 |
68
|
higgins
|
|
| 1221 |
731
|
bojilova
|
// VALIDATE SECTION
|
| 1222 |
68
|
higgins
|
/**
|
| 1223 |
380
|
jones
|
* Handle the validation request and return the results to the requestor
|
| 1224 |
68
|
higgins
|
*/
|
| 1225 |
185
|
jones
|
private void handleValidateAction(PrintWriter out, Hashtable params,
|
| 1226 |
|
|
HttpServletResponse response) {
|
| 1227 |
68
|
higgins
|
|
| 1228 |
103
|
jones
|
// Get the document indicated
|
| 1229 |
|
|
String valtext = null;
|
| 1230 |
309
|
bojilova
|
|
| 1231 |
103
|
jones
|
try {
|
| 1232 |
|
|
valtext = ((String[])params.get("valtext"))[0];
|
| 1233 |
|
|
} catch (Exception nullpe) {
|
| 1234 |
68
|
higgins
|
|
| 1235 |
309
|
bojilova
|
Connection conn = null;
|
| 1236 |
162
|
bojilova
|
String docid = null;
|
| 1237 |
103
|
jones
|
try {
|
| 1238 |
|
|
// Find the document id number
|
| 1239 |
185
|
jones
|
docid = ((String[])params.get("docid"))[0];
|
| 1240 |
309
|
bojilova
|
|
| 1241 |
|
|
// get a connection from the pool
|
| 1242 |
|
|
conn = util.getConnection();
|
| 1243 |
393
|
jones
|
|
| 1244 |
309
|
bojilova
|
// Get the document indicated from the db
|
| 1245 |
393
|
jones
|
DocumentImpl xmldoc = new DocumentImpl(conn, docid);
|
| 1246 |
|
|
valtext = xmldoc.toString();
|
| 1247 |
185
|
jones
|
|
| 1248 |
103
|
jones
|
} catch (NullPointerException npe) {
|
| 1249 |
253
|
jones
|
response.setContentType("text/xml");
|
| 1250 |
|
|
out.println("<error>Error getting document ID: " + docid + "</error>");
|
| 1251 |
320
|
bojilova
|
if ( conn != null ) { util.returnConnection(conn); }
|
| 1252 |
380
|
jones
|
return;
|
| 1253 |
309
|
bojilova
|
} catch (Exception e) {
|
| 1254 |
|
|
response.setContentType("text/html");
|
| 1255 |
|
|
out.println(e.getMessage());
|
| 1256 |
|
|
} finally {
|
| 1257 |
320
|
bojilova
|
util.returnConnection(conn);
|
| 1258 |
309
|
bojilova
|
}
|
| 1259 |
103
|
jones
|
}
|
| 1260 |
68
|
higgins
|
|
| 1261 |
309
|
bojilova
|
Connection conn = null;
|
| 1262 |
103
|
jones
|
try {
|
| 1263 |
309
|
bojilova
|
// get a connection from the pool
|
| 1264 |
|
|
conn = util.getConnection();
|
| 1265 |
253
|
jones
|
DBValidate valobj = new DBValidate(saxparser,conn);
|
| 1266 |
185
|
jones
|
boolean valid = valobj.validateString(valtext);
|
| 1267 |
68
|
higgins
|
|
| 1268 |
|
|
// set content type and other response header fields first
|
| 1269 |
253
|
jones
|
response.setContentType("text/xml");
|
| 1270 |
|
|
out.println(valobj.returnErrors());
|
| 1271 |
|
|
|
| 1272 |
103
|
jones
|
} catch (NullPointerException npe2) {
|
| 1273 |
|
|
// set content type and other response header fields first
|
| 1274 |
253
|
jones
|
response.setContentType("text/xml");
|
| 1275 |
|
|
out.println("<error>Error validating document.</error>");
|
| 1276 |
309
|
bojilova
|
} catch (Exception e) {
|
| 1277 |
|
|
response.setContentType("text/html");
|
| 1278 |
|
|
out.println(e.getMessage());
|
| 1279 |
|
|
} finally {
|
| 1280 |
320
|
bojilova
|
util.returnConnection(conn);
|
| 1281 |
309
|
bojilova
|
}
|
| 1282 |
103
|
jones
|
}
|
| 1283 |
731
|
bojilova
|
// END OF VALIDATE SECTION
|
| 1284 |
|
|
|
| 1285 |
|
|
// OTHER ACTION HANDLERS
|
| 1286 |
302
|
bojilova
|
|
| 1287 |
|
|
/**
|
| 1288 |
688
|
bojilova
|
* Handle "getaccesscontrol" action.
|
| 1289 |
|
|
* Read Access Control List from db connection in XML format
|
| 1290 |
|
|
*/
|
| 1291 |
|
|
private void handleGetAccessControlAction(PrintWriter out, Hashtable params,
|
| 1292 |
|
|
HttpServletResponse response,
|
| 1293 |
802
|
bojilova
|
String username, String[] groupnames) {
|
| 1294 |
688
|
bojilova
|
|
| 1295 |
|
|
Connection conn = null;
|
| 1296 |
|
|
String docid = ((String[])params.get("docid"))[0];
|
| 1297 |
|
|
|
| 1298 |
|
|
try {
|
| 1299 |
|
|
|
| 1300 |
|
|
// get connection from the pool
|
| 1301 |
|
|
conn = util.getConnection();
|
| 1302 |
|
|
AccessControlList aclobj = new AccessControlList(conn);
|
| 1303 |
802
|
bojilova
|
String acltext = aclobj.getACL(docid, username, groupnames);
|
| 1304 |
688
|
bojilova
|
out.println(acltext);
|
| 1305 |
|
|
|
| 1306 |
|
|
} catch (Exception e) {
|
| 1307 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
| 1308 |
|
|
out.println("<error>");
|
| 1309 |
|
|
out.println(e.getMessage());
|
| 1310 |
|
|
out.println("</error>");
|
| 1311 |
|
|
} finally {
|
| 1312 |
|
|
util.returnConnection(conn);
|
| 1313 |
|
|
}
|
| 1314 |
|
|
|
| 1315 |
|
|
}
|
| 1316 |
|
|
|
| 1317 |
|
|
/**
|
| 1318 |
731
|
bojilova
|
* Handle the "getprincipals" action.
|
| 1319 |
|
|
* Read all principals from authentication scheme in XML format
|
| 1320 |
|
|
*/
|
| 1321 |
|
|
private void handleGetPrincipalsAction(PrintWriter out, String user,
|
| 1322 |
|
|
String password) {
|
| 1323 |
|
|
|
| 1324 |
|
|
Connection conn = null;
|
| 1325 |
|
|
|
| 1326 |
|
|
try {
|
| 1327 |
|
|
|
| 1328 |
|
|
// get connection from the pool
|
| 1329 |
|
|
AuthSession auth = new AuthSession();
|
| 1330 |
|
|
String principals = auth.getPrincipals(user, password);
|
| 1331 |
|
|
out.println(principals);
|
| 1332 |
|
|
|
| 1333 |
|
|
} catch (Exception e) {
|
| 1334 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
| 1335 |
|
|
out.println("<error>");
|
| 1336 |
|
|
out.println(e.getMessage());
|
| 1337 |
|
|
out.println("</error>");
|
| 1338 |
|
|
} finally {
|
| 1339 |
|
|
util.returnConnection(conn);
|
| 1340 |
|
|
}
|
| 1341 |
|
|
|
| 1342 |
|
|
}
|
| 1343 |
|
|
|
| 1344 |
|
|
/**
|
| 1345 |
688
|
bojilova
|
* Handle "getdoctypes" action.
|
| 1346 |
302
|
bojilova
|
* Read all doctypes from db connection in XML format
|
| 1347 |
|
|
*/
|
| 1348 |
|
|
private void handleGetDoctypesAction(PrintWriter out, Hashtable params,
|
| 1349 |
|
|
HttpServletResponse response) {
|
| 1350 |
|
|
|
| 1351 |
309
|
bojilova
|
Connection conn = null;
|
| 1352 |
|
|
|
| 1353 |
302
|
bojilova
|
try {
|
| 1354 |
|
|
|
| 1355 |
309
|
bojilova
|
// get connection from the pool
|
| 1356 |
|
|
conn = util.getConnection();
|
| 1357 |
|
|
DBUtil dbutil = new DBUtil(conn);
|
| 1358 |
302
|
bojilova
|
String doctypes = dbutil.readDoctypes();
|
| 1359 |
|
|
out.println(doctypes);
|
| 1360 |
|
|
|
| 1361 |
|
|
} catch (Exception e) {
|
| 1362 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
| 1363 |
|
|
out.println("<error>");
|
| 1364 |
|
|
out.println(e.getMessage());
|
| 1365 |
|
|
out.println("</error>");
|
| 1366 |
309
|
bojilova
|
} finally {
|
| 1367 |
320
|
bojilova
|
util.returnConnection(conn);
|
| 1368 |
309
|
bojilova
|
}
|
| 1369 |
302
|
bojilova
|
|
| 1370 |
|
|
}
|
| 1371 |
|
|
|
| 1372 |
|
|
/**
|
| 1373 |
699
|
bojilova
|
* Handle the "getdtdschema" action.
|
| 1374 |
|
|
* Read DTD or Schema file for a given doctype from Metacat catalog system
|
| 1375 |
|
|
*/
|
| 1376 |
|
|
private void handleGetDTDSchemaAction(PrintWriter out, Hashtable params,
|
| 1377 |
|
|
HttpServletResponse response) {
|
| 1378 |
|
|
|
| 1379 |
|
|
Connection conn = null;
|
| 1380 |
|
|
String doctype = null;
|
| 1381 |
|
|
String[] doctypeArr = (String[])params.get("doctype");
|
| 1382 |
|
|
|
| 1383 |
|
|
// get only the first doctype specified in the list of doctypes
|
| 1384 |
|
|
// it could be done for all doctypes in that list
|
| 1385 |
|
|
if (doctypeArr != null) {
|
| 1386 |
|
|
doctype = ((String[])params.get("doctype"))[0];
|
| 1387 |
|
|
}
|
| 1388 |
|
|
|
| 1389 |
|
|
try {
|
| 1390 |
|
|
|
| 1391 |
|
|
// get connection from the pool
|
| 1392 |
|
|
conn = util.getConnection();
|
| 1393 |
|
|
DBUtil dbutil = new DBUtil(conn);
|
| 1394 |
|
|
String dtdschema = dbutil.readDTDSchema(doctype);
|
| 1395 |
|
|
out.println(dtdschema);
|
| 1396 |
|
|
|
| 1397 |
|
|
} catch (Exception e) {
|
| 1398 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
| 1399 |
|
|
out.println("<error>");
|
| 1400 |
|
|
out.println(e.getMessage());
|
| 1401 |
|
|
out.println("</error>");
|
| 1402 |
|
|
} finally {
|
| 1403 |
|
|
util.returnConnection(conn);
|
| 1404 |
|
|
}
|
| 1405 |
|
|
|
| 1406 |
|
|
}
|
| 1407 |
|
|
|
| 1408 |
|
|
/**
|
| 1409 |
688
|
bojilova
|
* Handle the "getdataguide" action.
|
| 1410 |
302
|
bojilova
|
* Read Data Guide for a given doctype from db connection in XML format
|
| 1411 |
|
|
*/
|
| 1412 |
|
|
private void handleGetDataGuideAction(PrintWriter out, Hashtable params,
|
| 1413 |
|
|
HttpServletResponse response) {
|
| 1414 |
|
|
|
| 1415 |
309
|
bojilova
|
Connection conn = null;
|
| 1416 |
316
|
bojilova
|
String doctype = null;
|
| 1417 |
|
|
String[] doctypeArr = (String[])params.get("doctype");
|
| 1418 |
309
|
bojilova
|
|
| 1419 |
316
|
bojilova
|
// get only the first doctype specified in the list of doctypes
|
| 1420 |
|
|
// it could be done for all doctypes in that list
|
| 1421 |
|
|
if (doctypeArr != null) {
|
| 1422 |
|
|
doctype = ((String[])params.get("doctype"))[0];
|
| 1423 |
|
|
}
|
| 1424 |
|
|
|
| 1425 |
302
|
bojilova
|
try {
|
| 1426 |
|
|
|
| 1427 |
309
|
bojilova
|
// get connection from the pool
|
| 1428 |
|
|
conn = util.getConnection();
|
| 1429 |
|
|
DBUtil dbutil = new DBUtil(conn);
|
| 1430 |
316
|
bojilova
|
String dataguide = dbutil.readDataGuide(doctype);
|
| 1431 |
302
|
bojilova
|
out.println(dataguide);
|
| 1432 |
|
|
|
| 1433 |
|
|
} catch (Exception e) {
|
| 1434 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
| 1435 |
|
|
out.println("<error>");
|
| 1436 |
|
|
out.println(e.getMessage());
|
| 1437 |
|
|
out.println("</error>");
|
| 1438 |
309
|
bojilova
|
} finally {
|
| 1439 |
320
|
bojilova
|
util.returnConnection(conn);
|
| 1440 |
309
|
bojilova
|
}
|
| 1441 |
302
|
bojilova
|
|
| 1442 |
|
|
}
|
| 1443 |
|
|
|
| 1444 |
793
|
bojilova
|
/**
|
| 1445 |
|
|
* Handle the "getlastdocid" action.
|
| 1446 |
|
|
* Get the latest docid with rev number from db connection in XML format
|
| 1447 |
|
|
*/
|
| 1448 |
847
|
jones
|
private void handleGetMaxDocidAction(PrintWriter out, Hashtable params,
|
| 1449 |
793
|
bojilova
|
HttpServletResponse response) {
|
| 1450 |
|
|
|
| 1451 |
|
|
Connection conn = null;
|
| 1452 |
847
|
jones
|
String scope = ((String[])params.get("scope"))[0];
|
| 1453 |
|
|
if (scope == null) {
|
| 1454 |
|
|
scope = ((String[])params.get("username"))[0];
|
| 1455 |
|
|
}
|
| 1456 |
793
|
bojilova
|
|
| 1457 |
|
|
try {
|
| 1458 |
|
|
|
| 1459 |
|
|
// get connection from the pool
|
| 1460 |
|
|
conn = util.getConnection();
|
| 1461 |
|
|
DBUtil dbutil = new DBUtil(conn);
|
| 1462 |
847
|
jones
|
String lastDocid = dbutil.getMaxDocid(scope);
|
| 1463 |
793
|
bojilova
|
out.println("<?xml version=\"1.0\"?>");
|
| 1464 |
|
|
out.println("<lastDocid>");
|
| 1465 |
847
|
jones
|
out.println(" <scope>" + scope + "</scope>");
|
| 1466 |
793
|
bojilova
|
out.println(" <docid>" + lastDocid + "</docid>");
|
| 1467 |
|
|
out.println("</lastDocid>");
|
| 1468 |
|
|
|
| 1469 |
|
|
} catch (Exception e) {
|
| 1470 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
| 1471 |
|
|
out.println("<error>");
|
| 1472 |
|
|
out.println(e.getMessage());
|
| 1473 |
|
|
out.println("</error>");
|
| 1474 |
|
|
} finally {
|
| 1475 |
|
|
util.returnConnection(conn);
|
| 1476 |
|
|
}
|
| 1477 |
|
|
|
| 1478 |
|
|
}
|
| 1479 |
|
|
|
| 1480 |
798
|
jones
|
/**
|
| 1481 |
|
|
* Handle documents passed to metacat that are encoded using the
|
| 1482 |
|
|
* "multipart/form-data" mime type. This is typically used for uploading
|
| 1483 |
|
|
* data files which may be binary and large.
|
| 1484 |
|
|
*/
|
| 1485 |
|
|
private void handleMultipartForm(HttpServletRequest request,
|
| 1486 |
|
|
HttpServletResponse response)
|
| 1487 |
|
|
{
|
| 1488 |
|
|
PrintWriter out = null;
|
| 1489 |
|
|
String action = null;
|
| 1490 |
|
|
|
| 1491 |
|
|
// Parse the multipart form, and save the parameters in a Hashtable and
|
| 1492 |
|
|
// save the FileParts in a hashtable
|
| 1493 |
|
|
|
| 1494 |
|
|
Hashtable params = new Hashtable();
|
| 1495 |
|
|
Hashtable fileList = new Hashtable();
|
| 1496 |
|
|
|
| 1497 |
|
|
try {
|
| 1498 |
|
|
// MBJ: need to put filesize limit in Metacat config (metacat.properties)
|
| 1499 |
|
|
MultipartParser mp = new MultipartParser(request, 200*1024*1024); // 200MB
|
| 1500 |
|
|
Part part;
|
| 1501 |
|
|
while ((part = mp.readNextPart()) != null) {
|
| 1502 |
|
|
String name = part.getName();
|
| 1503 |
|
|
|
| 1504 |
|
|
if (part.isParam()) {
|
| 1505 |
|
|
// it's a parameter part
|
| 1506 |
|
|
ParamPart paramPart = (ParamPart) part;
|
| 1507 |
|
|
String value = paramPart.getStringValue();
|
| 1508 |
|
|
params.put(name, value);
|
| 1509 |
|
|
if (name.equals("action")) {
|
| 1510 |
|
|
action = value;
|
| 1511 |
|
|
}
|
| 1512 |
|
|
} else if (part.isFile()) {
|
| 1513 |
|
|
// it's a file part
|
| 1514 |
|
|
FilePart filePart = (FilePart) part;
|
| 1515 |
|
|
fileList.put(name, filePart);
|
| 1516 |
|
|
|
| 1517 |
|
|
// Stop once the first file part is found, otherwise going onto the
|
| 1518 |
|
|
// next part prevents access to the file contents. So...for upload
|
| 1519 |
|
|
// to work, the datafile must be the last part
|
| 1520 |
|
|
break;
|
| 1521 |
|
|
}
|
| 1522 |
|
|
}
|
| 1523 |
|
|
} catch (IOException ioe) {
|
| 1524 |
|
|
try {
|
| 1525 |
|
|
out = response.getWriter();
|
| 1526 |
|
|
} catch (IOException ioe2) {
|
| 1527 |
|
|
System.err.println("Fatal Error: couldn't get response output stream.");
|
| 1528 |
|
|
}
|
| 1529 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
| 1530 |
|
|
out.println("<error>");
|
| 1531 |
|
|
out.println("Error: problem reading multipart data.");
|
| 1532 |
|
|
out.println("</error>");
|
| 1533 |
|
|
}
|
| 1534 |
|
|
|
| 1535 |
|
|
// Get the session information
|
| 1536 |
|
|
String username = null;
|
| 1537 |
|
|
String password = null;
|
| 1538 |
802
|
bojilova
|
String[] groupnames = null;
|
| 1539 |
798
|
jones
|
String sess_id = null;
|
| 1540 |
|
|
|
| 1541 |
|
|
// be aware of session expiration on every request
|
| 1542 |
|
|
HttpSession sess = request.getSession(true);
|
| 1543 |
|
|
if (sess.isNew()) {
|
| 1544 |
|
|
// session expired or has not been stored b/w user requests
|
| 1545 |
|
|
username = "public";
|
| 1546 |
|
|
sess.setAttribute("username", username);
|
| 1547 |
|
|
} else {
|
| 1548 |
|
|
username = (String)sess.getAttribute("username");
|
| 1549 |
|
|
password = (String)sess.getAttribute("password");
|
| 1550 |
802
|
bojilova
|
groupnames = (String[])sess.getAttribute("groupnames");
|
| 1551 |
798
|
jones
|
try {
|
| 1552 |
|
|
sess_id = (String)sess.getId();
|
| 1553 |
|
|
} catch(IllegalStateException ise) {
|
| 1554 |
|
|
System.out.println("error in handleMultipartForm: this shouldn't " +
|
| 1555 |
|
|
"happen: the session should be valid: " +
|
| 1556 |
|
|
ise.getMessage());
|
| 1557 |
|
|
}
|
| 1558 |
|
|
}
|
| 1559 |
|
|
|
| 1560 |
|
|
if ( action.equals("upload")) {
|
| 1561 |
|
|
if (username != null && !username.equals("public")) {
|
| 1562 |
|
|
handleUploadAction(request, response, params, fileList,
|
| 1563 |
802
|
bojilova
|
username, groupnames);
|
| 1564 |
798
|
jones
|
} else {
|
| 1565 |
|
|
try {
|
| 1566 |
|
|
out = response.getWriter();
|
| 1567 |
|
|
} catch (IOException ioe2) {
|
| 1568 |
|
|
System.err.println("Fatal Error: couldn't get response output stream.");
|
| 1569 |
|
|
}
|
| 1570 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
| 1571 |
|
|
out.println("<error>");
|
| 1572 |
|
|
out.println("Permission denied for " + action);
|
| 1573 |
|
|
out.println("</error>");
|
| 1574 |
|
|
}
|
| 1575 |
|
|
} else {
|
| 1576 |
|
|
try {
|
| 1577 |
|
|
out = response.getWriter();
|
| 1578 |
|
|
} catch (IOException ioe2) {
|
| 1579 |
|
|
System.err.println("Fatal Error: couldn't get response output stream.");
|
| 1580 |
|
|
}
|
| 1581 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
| 1582 |
|
|
out.println("<error>");
|
| 1583 |
|
|
out.println("Error: action not registered. Please report this error.");
|
| 1584 |
|
|
out.println("</error>");
|
| 1585 |
|
|
}
|
| 1586 |
|
|
}
|
| 1587 |
|
|
|
| 1588 |
|
|
/**
|
| 1589 |
|
|
* Handle the upload action by saving the attached file to disk and
|
| 1590 |
|
|
* registering it in the Metacat db
|
| 1591 |
|
|
*/
|
| 1592 |
|
|
private void handleUploadAction(HttpServletRequest request,
|
| 1593 |
|
|
HttpServletResponse response,
|
| 1594 |
|
|
Hashtable params, Hashtable fileList,
|
| 1595 |
802
|
bojilova
|
String username, String[] groupnames)
|
| 1596 |
798
|
jones
|
{
|
| 1597 |
|
|
PrintWriter out = null;
|
| 1598 |
|
|
Connection conn = null;
|
| 1599 |
|
|
String action = null;
|
| 1600 |
|
|
String docid = null;
|
| 1601 |
|
|
|
| 1602 |
|
|
response.setContentType("text/xml");
|
| 1603 |
|
|
try {
|
| 1604 |
|
|
out = response.getWriter();
|
| 1605 |
|
|
} catch (IOException ioe2) {
|
| 1606 |
|
|
System.err.println("Fatal Error: couldn't get response output stream.");
|
| 1607 |
|
|
}
|
| 1608 |
|
|
|
| 1609 |
|
|
if (params.containsKey("docid")) {
|
| 1610 |
|
|
docid = (String)params.get("docid");
|
| 1611 |
|
|
}
|
| 1612 |
|
|
|
| 1613 |
|
|
// Make sure we have a docid and datafile
|
| 1614 |
|
|
if (docid != null && fileList.containsKey("datafile")) {
|
| 1615 |
|
|
|
| 1616 |
|
|
// Get a reference to the file part of the form
|
| 1617 |
|
|
FilePart filePart = (FilePart)fileList.get("datafile");
|
| 1618 |
|
|
String fileName = filePart.getFileName();
|
| 1619 |
|
|
MetaCatUtil.debugMessage("Uploading filename: " + fileName);
|
| 1620 |
|
|
|
| 1621 |
|
|
// Check if the right file existed in the uploaded data
|
| 1622 |
|
|
if (fileName != null) {
|
| 1623 |
|
|
|
| 1624 |
|
|
try {
|
| 1625 |
|
|
// register the file in the database (which generates an exception if
|
| 1626 |
|
|
// the docid is not acceptable or other untoward things happen
|
| 1627 |
|
|
DocumentImpl.registerDocument(fileName, "BIN", docid, username, 1);
|
| 1628 |
|
|
|
| 1629 |
|
|
// Save the data file to disk using "docid" as the name
|
| 1630 |
|
|
dataDirectory.mkdirs();
|
| 1631 |
|
|
File newFile = new File(dataDirectory, docid);
|
| 1632 |
|
|
long size = filePart.writeTo(newFile);
|
| 1633 |
|
|
|
| 1634 |
|
|
// set content type and other response header fields first
|
| 1635 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
| 1636 |
|
|
out.println("<success>");
|
| 1637 |
|
|
out.println("<docid>" + docid + "</docid>");
|
| 1638 |
|
|
out.println("<size>" + size + "</size>");
|
| 1639 |
|
|
out.println("</success>");
|
| 1640 |
|
|
|
| 1641 |
|
|
} catch (Exception e) {
|
| 1642 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
| 1643 |
|
|
out.println("<error>");
|
| 1644 |
|
|
out.println(e.getMessage());
|
| 1645 |
|
|
out.println("</error>");
|
| 1646 |
|
|
}
|
| 1647 |
|
|
} else {
|
| 1648 |
|
|
// the field did not contain a file
|
| 1649 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
| 1650 |
|
|
out.println("<error>");
|
| 1651 |
|
|
out.println("The uploaded data did not contain a valid file.");
|
| 1652 |
|
|
out.println("</error>");
|
| 1653 |
|
|
}
|
| 1654 |
|
|
} else {
|
| 1655 |
|
|
// Error bcse docid missing or file missing
|
| 1656 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
| 1657 |
|
|
out.println("<error>");
|
| 1658 |
|
|
out.println("The uploaded data did not contain a valid docid " +
|
| 1659 |
|
|
"or valid file.");
|
| 1660 |
|
|
out.println("</error>");
|
| 1661 |
|
|
}
|
| 1662 |
|
|
}
|
| 1663 |
46
|
jones
|
}
|