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51
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jones
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/**
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2 |
203
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jones
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* '$RCSfile$'
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3 |
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* Purpose: A Class that implements a metadata catalog as a java Servlet
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4 |
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* Copyright: 2000 Regents of the University of California and the
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5 |
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* National Center for Ecological Analysis and Synthesis
|
6 |
361
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berkley
|
* Authors: Matt Jones, Dan Higgins, Jivka Bojilova, Chad Berkley
|
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348
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jones
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* Release: @release@
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154
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jones
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*
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203
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jones
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* '$Author$'
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10 |
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* '$Date$'
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* '$Revision$'
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669
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jones
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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16 |
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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24 |
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* along with this program; if not, write to the Free Software
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25 |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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51
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jones
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*/
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package edu.ucsb.nceas.metacat;
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29 |
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30 |
46
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jones
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import java.io.PrintWriter;
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31 |
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import java.io.IOException;
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32 |
50
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jones
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import java.io.Reader;
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33 |
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import java.io.StringReader;
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34 |
59
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jones
|
import java.io.BufferedReader;
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35 |
185
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jones
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import java.io.File;
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36 |
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import java.io.FileInputStream;
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37 |
458
|
berkley
|
import java.io.FileOutputStream;
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38 |
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import java.io.InputStreamReader;
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39 |
453
|
berkley
|
import java.io.DataInputStream;
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40 |
46
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jones
|
import java.util.Enumeration;
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41 |
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import java.util.Hashtable;
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42 |
341
|
berkley
|
import java.util.ResourceBundle;
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43 |
648
|
berkley
|
import java.util.Random;
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44 |
82
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jones
|
import java.util.PropertyResourceBundle;
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45 |
50
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jones
|
import java.net.URL;
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46 |
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import java.net.MalformedURLException;
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47 |
85
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jones
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import java.sql.PreparedStatement;
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48 |
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import java.sql.ResultSet;
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49 |
50
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jones
|
import java.sql.Connection;
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50 |
55
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jones
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import java.sql.SQLException;
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51 |
361
|
berkley
|
import java.lang.reflect.*;
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52 |
453
|
berkley
|
import java.net.*;
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53 |
458
|
berkley
|
import java.util.zip.*;
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54 |
46
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jones
|
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55 |
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import javax.servlet.ServletConfig;
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56 |
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import javax.servlet.ServletContext;
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57 |
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import javax.servlet.ServletException;
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48
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jones
|
import javax.servlet.ServletInputStream;
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59 |
46
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jones
|
import javax.servlet.http.HttpServlet;
|
60 |
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import javax.servlet.http.HttpServletRequest;
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61 |
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import javax.servlet.http.HttpServletResponse;
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62 |
210
|
bojilova
|
import javax.servlet.http.HttpSession;
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63 |
47
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jones
|
import javax.servlet.http.HttpUtils;
|
64 |
458
|
berkley
|
import javax.servlet.ServletOutputStream;
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65 |
46
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jones
|
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66 |
50
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jones
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import oracle.xml.parser.v2.XSLStylesheet;
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67 |
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import oracle.xml.parser.v2.XSLException;
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68 |
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import oracle.xml.parser.v2.XMLDocumentFragment;
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69 |
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import oracle.xml.parser.v2.XSLProcessor;
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70 |
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204
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jones
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import org.xml.sax.SAXException;
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72 |
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73 |
46
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jones
|
/**
|
74 |
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* A metadata catalog server implemented as a Java Servlet
|
75 |
154
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jones
|
*
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76 |
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* <p>Valid parameters are:<br>
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77 |
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* action=query -- query the values of all elements and attributes
|
78 |
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* and return a result set of nodes<br>
|
79 |
205
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jones
|
* action=squery -- structured query (see pathquery.dtd)<br>
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80 |
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* action=insert -- insert an XML document into the database store<br>
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81 |
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* action=update -- update an XML document that is in the database store<br>
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82 |
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* action=delete -- delete an XML document from the database store<br>
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83 |
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* action=validate -- vallidate the xml contained in valtext<br>
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84 |
566
|
jones
|
* action=read -- display an XML document in XML or HTML<br>
|
85 |
205
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jones
|
* doctype -- document type list returned by the query (publicID)<br>
|
86 |
154
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jones
|
* qformat=xml -- display resultset from query in XML<br>
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87 |
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* qformat=html -- display resultset from query in HTML<br>
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88 |
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* docid=34 -- display the document with the document ID number 34<br>
|
89 |
205
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jones
|
* doctext -- XML text of the document to load into the database<br>
|
90 |
598
|
bojilova
|
* acltext -- XML access text for a document to load into the database<br>
|
91 |
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* dtdtext -- XML DTD text for a new DTD to load into Metacat XML Catalog<br>
|
92 |
183
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jones
|
* query -- actual query text (to go with 'action=query' or 'action=squery')<br>
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93 |
205
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jones
|
* valtext -- XML text to be validated<br>
|
94 |
688
|
bojilova
|
* action=getdatadoc -- retrieve a stored datadocument<br>
|
95 |
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* action=getaccesscontrol -- retrieve acl info for Metacat document<br>
|
96 |
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* action=getdoctypes -- retrieve all doctypes (publicID)<br>
|
97 |
699
|
bojilova
|
* action=getdtdschema -- retrieve a DTD or Schema file<br>
|
98 |
688
|
bojilova
|
* action=getdataguide -- retrieve a Data Guide<br>
|
99 |
725
|
bojilova
|
* action=getprincipals -- retrieve a list of principals in XML<br>
|
100 |
205
|
jones
|
* datadoc -- data document name (id)<br>
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101 |
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* <p>
|
102 |
|
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* The particular combination of parameters that are valid for each
|
103 |
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* particular action value is quite specific. This documentation
|
104 |
|
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* will be reorganized to reflect this information.
|
105 |
46
|
jones
|
*/
|
106 |
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public class MetaCatServlet extends HttpServlet {
|
107 |
|
|
|
108 |
370
|
berkley
|
private ServletConfig config = null;
|
109 |
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private ServletContext context = null;
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110 |
|
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private Hashtable connectionPool = new Hashtable();
|
111 |
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private String resultStyleURL = null;
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112 |
|
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private String xmlcatalogfile = null;
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113 |
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private String saxparser = null;
|
114 |
|
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private String defaultdatapath = null;
|
115 |
|
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private String servletpath = null;
|
116 |
380
|
jones
|
private PropertyResourceBundle options = null;
|
117 |
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private MetaCatUtil util = null;
|
118 |
|
|
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119 |
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// path to directory where data files
|
120 |
|
|
// that can be downloaded will be stored
|
121 |
370
|
berkley
|
private String htmlpath = null;
|
122 |
380
|
jones
|
// script to get data file and put it
|
123 |
|
|
// in defaultdocpath dir
|
124 |
370
|
berkley
|
private String executescript = null;
|
125 |
46
|
jones
|
|
126 |
50
|
jones
|
/**
|
127 |
|
|
* Initialize the servlet by creating appropriate database connections
|
128 |
|
|
*/
|
129 |
46
|
jones
|
public void init( ServletConfig config ) throws ServletException {
|
130 |
|
|
try {
|
131 |
|
|
super.init( config );
|
132 |
|
|
this.config = config;
|
133 |
332
|
bojilova
|
this.context = config.getServletContext();
|
134 |
184
|
jones
|
System.out.println("MetaCatServlet Initialize");
|
135 |
82
|
jones
|
|
136 |
184
|
jones
|
util = new MetaCatUtil();
|
137 |
|
|
|
138 |
83
|
jones
|
// Get the configuration file information
|
139 |
184
|
jones
|
resultStyleURL = util.getOption("resultStyleURL");
|
140 |
|
|
xmlcatalogfile = util.getOption("xmlcatalogfile");
|
141 |
|
|
saxparser = util.getOption("saxparser");
|
142 |
|
|
defaultdatapath = util.getOption("defaultdatapath");
|
143 |
593
|
berkley
|
executescript = util.getOption("executescript");
|
144 |
360
|
bojilova
|
servletpath = util.getOption("servletpath");
|
145 |
|
|
htmlpath = util.getOption("htmlpath");
|
146 |
598
|
bojilova
|
|
147 |
|
|
// try {
|
148 |
|
|
// // Open a pool of db connections
|
149 |
|
|
// connectionPool = util.getConnectionPool();
|
150 |
|
|
// } catch (Exception e) {
|
151 |
|
|
// System.err.println("Error creating pool of database connections");
|
152 |
|
|
// System.err.println(e.getMessage());
|
153 |
|
|
// }
|
154 |
46
|
jones
|
} catch ( ServletException ex ) {
|
155 |
|
|
throw ex;
|
156 |
|
|
}
|
157 |
|
|
}
|
158 |
|
|
|
159 |
320
|
bojilova
|
/**
|
160 |
|
|
* Close all db connections from the pool
|
161 |
|
|
*/
|
162 |
|
|
public void destroy() {
|
163 |
|
|
|
164 |
|
|
if (util != null) {
|
165 |
|
|
util.closeConnections();
|
166 |
|
|
}
|
167 |
|
|
}
|
168 |
|
|
|
169 |
50
|
jones
|
/** Handle "GET" method requests from HTTP clients */
|
170 |
46
|
jones
|
public void doGet (HttpServletRequest request, HttpServletResponse response)
|
171 |
|
|
throws ServletException, IOException {
|
172 |
|
|
|
173 |
48
|
jones
|
// Process the data and send back the response
|
174 |
59
|
jones
|
handleGetOrPost(request, response);
|
175 |
48
|
jones
|
}
|
176 |
|
|
|
177 |
50
|
jones
|
/** Handle "POST" method requests from HTTP clients */
|
178 |
48
|
jones
|
public void doPost( HttpServletRequest request, HttpServletResponse response)
|
179 |
|
|
throws ServletException, IOException {
|
180 |
|
|
|
181 |
|
|
// Process the data and send back the response
|
182 |
59
|
jones
|
handleGetOrPost(request, response);
|
183 |
48
|
jones
|
}
|
184 |
|
|
|
185 |
49
|
jones
|
/**
|
186 |
50
|
jones
|
* Control servlet response depending on the action parameter specified
|
187 |
49
|
jones
|
*/
|
188 |
382
|
berkley
|
private void handleGetOrPost(HttpServletRequest request,
|
189 |
59
|
jones
|
HttpServletResponse response)
|
190 |
355
|
berkley
|
throws ServletException, IOException
|
191 |
|
|
{
|
192 |
48
|
jones
|
|
193 |
309
|
bojilova
|
if ( util == null ) {
|
194 |
|
|
util = new MetaCatUtil();
|
195 |
|
|
}
|
196 |
598
|
bojilova
|
if ( connectionPool.isEmpty() ) {
|
197 |
309
|
bojilova
|
try {
|
198 |
|
|
// Open a pool of db connections
|
199 |
|
|
connectionPool = util.getConnectionPool();
|
200 |
|
|
} catch (Exception e) {
|
201 |
675
|
berkley
|
System.err.println("Error creating pool of database connections in " +
|
202 |
|
|
" MetaCatServlet.handleGetOrPost");
|
203 |
309
|
bojilova
|
System.err.println(e.getMessage());
|
204 |
|
|
}
|
205 |
|
|
}
|
206 |
49
|
jones
|
// Get a handle to the output stream back to the client
|
207 |
566
|
jones
|
//PrintWriter pwout = response.getWriter();
|
208 |
102
|
jones
|
//response.setContentType("text/html");
|
209 |
49
|
jones
|
|
210 |
59
|
jones
|
String name = null;
|
211 |
|
|
String[] value = null;
|
212 |
103
|
jones
|
String[] docid = new String[3];
|
213 |
59
|
jones
|
Hashtable params = new Hashtable();
|
214 |
|
|
Enumeration paramlist = request.getParameterNames();
|
215 |
|
|
while (paramlist.hasMoreElements()) {
|
216 |
|
|
name = (String)paramlist.nextElement();
|
217 |
|
|
value = request.getParameterValues(name);
|
218 |
103
|
jones
|
|
219 |
|
|
// Decode the docid and mouse click information
|
220 |
|
|
if (name.endsWith(".y")) {
|
221 |
|
|
docid[0] = name.substring(0,name.length()-2);
|
222 |
|
|
//out.println("docid => " + docid[0]);
|
223 |
|
|
params.put("docid", docid);
|
224 |
|
|
name = "ypos";
|
225 |
|
|
}
|
226 |
|
|
if (name.endsWith(".x")) {
|
227 |
|
|
name = "xpos";
|
228 |
373
|
berkley
|
}
|
229 |
103
|
jones
|
|
230 |
566
|
jones
|
//pwout.println(name + " => " + value[0]);
|
231 |
373
|
berkley
|
params.put(name,value);
|
232 |
|
|
}
|
233 |
355
|
berkley
|
|
234 |
509
|
bojilova
|
//if the user clicked on the input images, decode which image
|
235 |
|
|
//was clicked then set the action.
|
236 |
505
|
jones
|
String action = ((String[])params.get("action"))[0];
|
237 |
|
|
util.debugMessage("Line 213: Action is: " + action);
|
238 |
509
|
bojilova
|
|
239 |
505
|
jones
|
//MBJELIMINATE String action = decodeMouseAction(params);
|
240 |
|
|
//if(action.equals("error"))
|
241 |
|
|
//{
|
242 |
509
|
bojilova
|
//util.debugMessage("Line 218: Action is: " + action);
|
243 |
505
|
jones
|
//action = ((String[])params.get("action"))[0];
|
244 |
|
|
//}
|
245 |
355
|
berkley
|
|
246 |
380
|
jones
|
// This block handles session management for the servlet
|
247 |
|
|
// by looking up the current session information for all actions
|
248 |
509
|
bojilova
|
// other than "login" and "logout"
|
249 |
425
|
bojilova
|
String username = null;
|
250 |
725
|
bojilova
|
String password = null;
|
251 |
425
|
bojilova
|
String groupname = null;
|
252 |
648
|
berkley
|
String sess_id = null;
|
253 |
509
|
bojilova
|
|
254 |
|
|
// handle login action
|
255 |
|
|
if (action.equals("login")) {
|
256 |
|
|
|
257 |
458
|
berkley
|
handleLoginAction(response.getWriter(), params, request, response);
|
258 |
509
|
bojilova
|
|
259 |
210
|
bojilova
|
// handle logout action
|
260 |
509
|
bojilova
|
} else if (action.equals("logout")) {
|
261 |
361
|
berkley
|
|
262 |
509
|
bojilova
|
handleLogoutAction(response.getWriter(), params, request, response);
|
263 |
361
|
berkley
|
|
264 |
251
|
bojilova
|
// aware of session expiration on every request
|
265 |
343
|
jones
|
} else {
|
266 |
509
|
bojilova
|
|
267 |
332
|
bojilova
|
HttpSession sess = request.getSession(true);
|
268 |
|
|
if (sess.isNew()) {
|
269 |
251
|
bojilova
|
// session expired or has not been stored b/w user requests
|
270 |
441
|
bojilova
|
username = "public";
|
271 |
673
|
bojilova
|
sess.setAttribute("username", username);
|
272 |
425
|
bojilova
|
} else {
|
273 |
|
|
username = (String)sess.getAttribute("username");
|
274 |
725
|
bojilova
|
password = (String)sess.getAttribute("password");
|
275 |
425
|
bojilova
|
groupname = (String)sess.getAttribute("groupname");
|
276 |
648
|
berkley
|
try
|
277 |
|
|
{
|
278 |
|
|
sess_id = (String)sess.getId();
|
279 |
|
|
}
|
280 |
|
|
catch(IllegalStateException ise)
|
281 |
|
|
{
|
282 |
|
|
System.out.println("error in handleGetOrPost: this shouldn't " +
|
283 |
|
|
"happen: the session should be valid: " +
|
284 |
|
|
ise.getMessage());
|
285 |
|
|
}
|
286 |
425
|
bojilova
|
}
|
287 |
210
|
bojilova
|
}
|
288 |
219
|
jones
|
|
289 |
380
|
jones
|
// Now that we know the session is valid, we can delegate the request
|
290 |
|
|
// to a particular action handler
|
291 |
361
|
berkley
|
if(action.equals("query"))
|
292 |
|
|
{
|
293 |
458
|
berkley
|
handleQuery(response.getWriter(), params, response, username, groupname);
|
294 |
373
|
berkley
|
}
|
295 |
371
|
berkley
|
else if(action.equals("squery"))
|
296 |
361
|
berkley
|
{
|
297 |
373
|
berkley
|
if(params.containsKey("query"))
|
298 |
|
|
{
|
299 |
458
|
berkley
|
handleSQuery(response.getWriter(), params, response, username, groupname);
|
300 |
373
|
berkley
|
}
|
301 |
|
|
else
|
302 |
|
|
{
|
303 |
458
|
berkley
|
PrintWriter out = response.getWriter();
|
304 |
373
|
berkley
|
out.println("Illegal action squery without \"query\" parameter");
|
305 |
|
|
}
|
306 |
|
|
}
|
307 |
566
|
jones
|
else if (action.equals("read")) {
|
308 |
636
|
berkley
|
//PrintWriter out = response.getWriter();
|
309 |
87
|
jones
|
try {
|
310 |
661
|
berkley
|
handleReadAction(/*out,*/ params, response, username);
|
311 |
87
|
jones
|
} catch (ClassNotFoundException e) {
|
312 |
675
|
berkley
|
System.out.println("Error in MetacatServlet.handlGetOrPost: " +
|
313 |
|
|
e.getMessage());
|
314 |
87
|
jones
|
} catch (SQLException se) {
|
315 |
675
|
berkley
|
System.out.println("Error in MetaCatServlet.handleGetOrPost: " +
|
316 |
|
|
se.getMessage());
|
317 |
87
|
jones
|
}
|
318 |
453
|
berkley
|
}
|
319 |
566
|
jones
|
/*
|
320 |
453
|
berkley
|
else if (action.equals("getrelateddocument")) {
|
321 |
458
|
berkley
|
PrintWriter out = response.getWriter();
|
322 |
453
|
berkley
|
try {
|
323 |
|
|
handleGetRelatedDocumentAction(out, params, response);
|
324 |
|
|
} catch (ClassNotFoundException e) {
|
325 |
|
|
out.println(e.getMessage());
|
326 |
|
|
} catch (SQLException se) {
|
327 |
|
|
out.println(se.getMessage());
|
328 |
|
|
}
|
329 |
|
|
}
|
330 |
566
|
jones
|
*/
|
331 |
453
|
berkley
|
else if (action.equals("insert") || action.equals("update")) {
|
332 |
458
|
berkley
|
PrintWriter out = response.getWriter();
|
333 |
509
|
bojilova
|
if ( (username != null) && !username.equals("public") ) {
|
334 |
425
|
bojilova
|
handleInsertOrUpdateAction(out, params, response, username, groupname);
|
335 |
|
|
} else {
|
336 |
|
|
out.println("Permission denied for " + action);
|
337 |
|
|
}
|
338 |
203
|
jones
|
} else if (action.equals("delete")) {
|
339 |
458
|
berkley
|
PrintWriter out = response.getWriter();
|
340 |
509
|
bojilova
|
if ( (username != null) && !username.equals("public") ) {
|
341 |
425
|
bojilova
|
handleDeleteAction(out, params, response, username, groupname);
|
342 |
|
|
} else {
|
343 |
|
|
out.println("Permission denied for " + action);
|
344 |
|
|
}
|
345 |
68
|
higgins
|
} else if (action.equals("validate")) {
|
346 |
458
|
berkley
|
PrintWriter out = response.getWriter();
|
347 |
437
|
berkley
|
handleValidateAction(out, params, response);
|
348 |
|
|
} else if (action.equals("getabstract")) {
|
349 |
458
|
berkley
|
PrintWriter out = response.getWriter();
|
350 |
437
|
berkley
|
try{
|
351 |
|
|
handleViewAbstractAction(out, params, response);
|
352 |
|
|
}
|
353 |
|
|
catch(Exception e)
|
354 |
|
|
{
|
355 |
675
|
berkley
|
out.println("error viewing abstract from " +
|
356 |
|
|
"MetacatServlet.handleGetorPost: " + e.getMessage());
|
357 |
437
|
berkley
|
}
|
358 |
91
|
higgins
|
} else if (action.equals("getdatadoc")) {
|
359 |
458
|
berkley
|
response.setContentType("application/zip");
|
360 |
|
|
ServletOutputStream out = response.getOutputStream();
|
361 |
91
|
higgins
|
handleGetDataDocumentAction(out, params, response);
|
362 |
688
|
bojilova
|
} else if (action.equals("getaccesscontrol")) {
|
363 |
|
|
PrintWriter out = response.getWriter();
|
364 |
|
|
handleGetAccessControlAction(out, params, response, username, groupname);
|
365 |
302
|
bojilova
|
} else if (action.equals("getdoctypes")) {
|
366 |
458
|
berkley
|
PrintWriter out = response.getWriter();
|
367 |
302
|
bojilova
|
handleGetDoctypesAction(out, params, response);
|
368 |
648
|
berkley
|
} else if (action.equals("getdataport")) {
|
369 |
|
|
PrintWriter out = response.getWriter();
|
370 |
649
|
berkley
|
if ( (username != null) && !username.equals("public") ) {
|
371 |
648
|
berkley
|
handleGetDataPortAction(out, params, response, username, groupname,
|
372 |
|
|
sess_id);
|
373 |
649
|
berkley
|
} else {
|
374 |
|
|
out.println("You must be authenticated to perform the getdataport " +
|
375 |
|
|
"action!");
|
376 |
|
|
}
|
377 |
699
|
bojilova
|
} else if (action.equals("getdtdschema")) {
|
378 |
|
|
PrintWriter out = response.getWriter();
|
379 |
|
|
handleGetDTDSchemaAction(out, params, response);
|
380 |
302
|
bojilova
|
} else if (action.equals("getdataguide")) {
|
381 |
458
|
berkley
|
PrintWriter out = response.getWriter();
|
382 |
302
|
bojilova
|
handleGetDataGuideAction(out, params, response);
|
383 |
725
|
bojilova
|
} else if (action.equals("getprincipals")) {
|
384 |
|
|
PrintWriter out = response.getWriter();
|
385 |
|
|
handleGetPrincipalsAction(out, username, password);
|
386 |
509
|
bojilova
|
} else if (action.equals("login") || action.equals("logout")) {
|
387 |
566
|
jones
|
} else if (action.equals("protocoltest")) {
|
388 |
|
|
String testURL = "metacat://dev.nceas.ucsb.edu/NCEAS.897766.9";
|
389 |
|
|
try {
|
390 |
|
|
testURL = ((String[])params.get("url"))[0];
|
391 |
|
|
} catch (Throwable t) {
|
392 |
|
|
}
|
393 |
|
|
String phandler = System.getProperty("java.protocol.handler.pkgs");
|
394 |
|
|
response.setContentType("text/html");
|
395 |
|
|
PrintWriter out = response.getWriter();
|
396 |
|
|
out.println("<body bgcolor=\"white\">");
|
397 |
|
|
out.println("<p>Handler property: <code>" + phandler + "</code></p>");
|
398 |
|
|
out.println("<p>Starting test for:<br>");
|
399 |
|
|
out.println(" " + testURL + "</p>");
|
400 |
|
|
try {
|
401 |
|
|
URL u = new URL(testURL);
|
402 |
|
|
out.println("<pre>");
|
403 |
|
|
out.println("Protocol: " + u.getProtocol());
|
404 |
|
|
out.println(" Host: " + u.getHost());
|
405 |
|
|
out.println(" Port: " + u.getPort());
|
406 |
|
|
out.println(" Path: " + u.getPath());
|
407 |
|
|
out.println(" Ref: " + u.getRef());
|
408 |
|
|
String pquery = u.getQuery();
|
409 |
|
|
out.println(" Query: " + pquery);
|
410 |
|
|
out.println(" Params: ");
|
411 |
|
|
if (pquery != null) {
|
412 |
|
|
Hashtable qparams = util.parseQuery(u.getQuery());
|
413 |
|
|
for (Enumeration en = qparams.keys(); en.hasMoreElements(); ) {
|
414 |
|
|
String pname = (String)en.nextElement();
|
415 |
|
|
String pvalue = (String)qparams.get(pname);
|
416 |
|
|
out.println(" " + pname + ": " + pvalue);
|
417 |
|
|
}
|
418 |
|
|
}
|
419 |
|
|
out.println("</pre>");
|
420 |
|
|
out.println("</body>");
|
421 |
|
|
out.close();
|
422 |
|
|
} catch (MalformedURLException mue) {
|
423 |
675
|
berkley
|
System.out.println("bad url from MetacatServlet.handleGetOrPost");
|
424 |
566
|
jones
|
out.println(mue.getMessage());
|
425 |
|
|
mue.printStackTrace(out);
|
426 |
|
|
out.close();
|
427 |
|
|
}
|
428 |
50
|
jones
|
} else {
|
429 |
458
|
berkley
|
PrintWriter out = response.getWriter();
|
430 |
50
|
jones
|
out.println("Error: action not registered. Please report this error.");
|
431 |
46
|
jones
|
}
|
432 |
465
|
berkley
|
util.closeConnections();
|
433 |
49
|
jones
|
// Close the stream to the client
|
434 |
458
|
berkley
|
//out.close();
|
435 |
46
|
jones
|
}
|
436 |
355
|
berkley
|
|
437 |
|
|
/**
|
438 |
|
|
* decodes the mouse click information coming from the client.
|
439 |
|
|
* This function may be overwritten to provide specific functionality
|
440 |
|
|
* for different applications.
|
441 |
|
|
* @param params the parameters from the CGI
|
442 |
|
|
* @return action the action to be performed or "error" if an error was
|
443 |
|
|
* generated
|
444 |
|
|
*/
|
445 |
375
|
berkley
|
protected String decodeMouseAction(Hashtable params)
|
446 |
355
|
berkley
|
{
|
447 |
|
|
// Determine what type of request the user made
|
448 |
|
|
// if the action parameter is set, use it as a default
|
449 |
|
|
// but if the ypos param is set, calculate the action needed
|
450 |
|
|
String action=null;
|
451 |
|
|
long ypos = 0;
|
452 |
|
|
try {
|
453 |
|
|
ypos = (new Long(((String[])params.get("ypos"))[0]).longValue());
|
454 |
|
|
//out.println("<P>YPOS IS " + ypos);
|
455 |
|
|
if (ypos <= 13) {
|
456 |
566
|
jones
|
action = "read";
|
457 |
355
|
berkley
|
} else if (ypos > 13 && ypos <= 27) {
|
458 |
|
|
action = "validate";
|
459 |
|
|
} else if (ypos > 27) {
|
460 |
|
|
action = "transform";
|
461 |
|
|
}
|
462 |
|
|
return action;
|
463 |
|
|
} catch (Exception npe) {
|
464 |
380
|
jones
|
//
|
465 |
|
|
// MBJ -- NOTE that this should be handled more gracefully with
|
466 |
|
|
// the new exception infrastructure -- this "error" return
|
467 |
|
|
// value is inappropriate
|
468 |
355
|
berkley
|
//out.println("<P>Caught exception looking for Y value.");
|
469 |
|
|
return "error";
|
470 |
382
|
berkley
|
}
|
471 |
355
|
berkley
|
}
|
472 |
648
|
berkley
|
|
473 |
|
|
/**
|
474 |
|
|
* sends the port number that the data socket is running on. This is a
|
475 |
|
|
* parameter set in the metacat.properties file.
|
476 |
|
|
*/
|
477 |
|
|
private void handleGetDataPortAction(PrintWriter out, Hashtable params,
|
478 |
|
|
HttpServletResponse response,
|
479 |
|
|
String username, String groupname,
|
480 |
|
|
String sess_id)
|
481 |
|
|
{
|
482 |
|
|
int port;
|
483 |
|
|
String filedir = null;
|
484 |
|
|
try
|
485 |
|
|
{
|
486 |
|
|
filedir = util.getOption("datafilepath");
|
487 |
|
|
|
488 |
|
|
Random r = new Random();
|
489 |
|
|
port = r.nextInt(65000); //pick a random port between 0-65000
|
490 |
|
|
//System.out.println("random port is: " + port);
|
491 |
|
|
while(!DataFileServer.portIsAvailable(port))
|
492 |
|
|
{
|
493 |
|
|
port = r.nextInt(65000);
|
494 |
|
|
//System.out.println("next port used: " + port);
|
495 |
|
|
}
|
496 |
|
|
DataFileServer dfs = new DataFileServer(port, username, sess_id);
|
497 |
|
|
dfs.start();
|
498 |
|
|
|
499 |
|
|
//System.out.println("filedir: " + filedir);
|
500 |
|
|
//System.out.println("port: " + port);
|
501 |
|
|
response.setContentType("text/xml");
|
502 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
503 |
|
|
out.println("<port>");
|
504 |
|
|
out.print(port);
|
505 |
|
|
out.print("</port>");
|
506 |
|
|
|
507 |
|
|
}
|
508 |
|
|
catch (Exception e)
|
509 |
|
|
{
|
510 |
675
|
berkley
|
System.out.println("error in MetacatServlet.handleGetDataPortAction: " +
|
511 |
|
|
e.getMessage());
|
512 |
648
|
berkley
|
}
|
513 |
|
|
}
|
514 |
49
|
jones
|
|
515 |
50
|
jones
|
/**
|
516 |
509
|
bojilova
|
* Handle the login request. Create a new session object.
|
517 |
503
|
bojilova
|
* Do user authentication through the session.
|
518 |
210
|
bojilova
|
*/
|
519 |
|
|
private void handleLoginAction(PrintWriter out, Hashtable params,
|
520 |
|
|
HttpServletRequest request, HttpServletResponse response) {
|
521 |
251
|
bojilova
|
|
522 |
503
|
bojilova
|
AuthSession sess = null;
|
523 |
228
|
bojilova
|
String un = ((String[])params.get("username"))[0];
|
524 |
|
|
String pw = ((String[])params.get("password"))[0];
|
525 |
297
|
bojilova
|
String action = ((String[])params.get("action"))[0];
|
526 |
509
|
bojilova
|
String qformat = ((String[])params.get("qformat"))[0];
|
527 |
332
|
bojilova
|
|
528 |
297
|
bojilova
|
try {
|
529 |
509
|
bojilova
|
sess = new AuthSession();
|
530 |
297
|
bojilova
|
} catch (Exception e) {
|
531 |
675
|
berkley
|
System.out.println("error in MetacatServlet.handleLoginAction: " +
|
532 |
|
|
e.getMessage());
|
533 |
297
|
bojilova
|
out.println(e.getMessage());
|
534 |
509
|
bojilova
|
return;
|
535 |
297
|
bojilova
|
}
|
536 |
411
|
bojilova
|
|
537 |
509
|
bojilova
|
boolean isValid = sess.authenticate(request, un, pw);
|
538 |
|
|
|
539 |
|
|
// format and transform the output
|
540 |
|
|
if (qformat.equals("html")) {
|
541 |
|
|
Connection conn = null;
|
542 |
503
|
bojilova
|
try {
|
543 |
509
|
bojilova
|
conn = util.getConnection();
|
544 |
|
|
DBTransform trans = new DBTransform(conn);
|
545 |
|
|
response.setContentType("text/html");
|
546 |
510
|
bojilova
|
trans.transformXMLDocument(sess.getMessage(), "-//NCEAS//login//EN",
|
547 |
|
|
"-//W3C//HTML//EN", out);
|
548 |
509
|
bojilova
|
util.returnConnection(conn);
|
549 |
|
|
} catch(Exception e) {
|
550 |
|
|
util.returnConnection(conn);
|
551 |
|
|
}
|
552 |
|
|
|
553 |
|
|
// any output is returned
|
554 |
|
|
} else {
|
555 |
|
|
response.setContentType("text/xml");
|
556 |
|
|
out.println(sess.getMessage());
|
557 |
503
|
bojilova
|
}
|
558 |
510
|
bojilova
|
|
559 |
|
|
/* WITHOUT XSLT transformation
|
560 |
|
|
// redirects response to html page
|
561 |
|
|
if (qformat.equals("html")) {
|
562 |
|
|
// user authentication successful
|
563 |
|
|
if (isValid) {
|
564 |
|
|
response.sendRedirect(
|
565 |
|
|
response.encodeRedirectUrl(htmlpath + "/metacat.html"));
|
566 |
|
|
// unsuccessful user authentication
|
567 |
|
|
} else {
|
568 |
|
|
response.sendRedirect(htmlpath + "/login.html");
|
569 |
|
|
}
|
570 |
|
|
// any output is returned
|
571 |
|
|
} else {
|
572 |
|
|
response.setContentType("text/xml");
|
573 |
|
|
out.println(sess.getMessage());
|
574 |
|
|
}
|
575 |
|
|
*/
|
576 |
509
|
bojilova
|
|
577 |
370
|
berkley
|
}
|
578 |
509
|
bojilova
|
|
579 |
|
|
/**
|
580 |
|
|
* Handle the logout request. Close the connection.
|
581 |
|
|
*/
|
582 |
|
|
private void handleLogoutAction(PrintWriter out, Hashtable params,
|
583 |
|
|
HttpServletRequest request, HttpServletResponse response) {
|
584 |
|
|
|
585 |
|
|
String qformat = ((String[])params.get("qformat"))[0];
|
586 |
|
|
|
587 |
|
|
// close the connection
|
588 |
|
|
HttpSession sess = request.getSession(false);
|
589 |
|
|
if (sess != null) { sess.invalidate(); }
|
590 |
|
|
|
591 |
|
|
// produce output
|
592 |
|
|
StringBuffer output = new StringBuffer();
|
593 |
|
|
output.append("<?xml version=\"1.0\"?>");
|
594 |
510
|
bojilova
|
output.append("<logout>");
|
595 |
|
|
output.append("User logged out");
|
596 |
|
|
output.append("</logout>");
|
597 |
509
|
bojilova
|
|
598 |
|
|
//format and transform the output
|
599 |
|
|
if (qformat.equals("html")) {
|
600 |
|
|
Connection conn = null;
|
601 |
|
|
try {
|
602 |
|
|
conn = util.getConnection();
|
603 |
|
|
DBTransform trans = new DBTransform(conn);
|
604 |
|
|
response.setContentType("text/html");
|
605 |
510
|
bojilova
|
trans.transformXMLDocument(output.toString(), "-//NCEAS//login//EN",
|
606 |
|
|
"-//W3C//HTML//EN", out);
|
607 |
509
|
bojilova
|
util.returnConnection(conn);
|
608 |
|
|
} catch(Exception e) {
|
609 |
|
|
util.returnConnection(conn);
|
610 |
|
|
}
|
611 |
|
|
// any output is returned
|
612 |
|
|
} else {
|
613 |
|
|
response.setContentType("text/xml");
|
614 |
|
|
out.println(output.toString());
|
615 |
|
|
}
|
616 |
|
|
|
617 |
510
|
bojilova
|
/* WITHOUT XSLT transformation
|
618 |
|
|
// redirects response to html page
|
619 |
|
|
if (qformat.equals("html")) {
|
620 |
|
|
response.sendRedirect(htmlpath + "/index.html");
|
621 |
|
|
} catch(Exception e) {
|
622 |
|
|
util.returnConnection(conn);
|
623 |
|
|
}
|
624 |
|
|
// any output is returned
|
625 |
|
|
} else {
|
626 |
|
|
response.setContentType("text/xml");
|
627 |
|
|
out.println(output.toString());
|
628 |
|
|
}
|
629 |
|
|
*/
|
630 |
509
|
bojilova
|
}
|
631 |
|
|
|
632 |
370
|
berkley
|
|
633 |
373
|
berkley
|
/**
|
634 |
380
|
jones
|
* Retreive the squery xml, execute it and display it
|
635 |
|
|
*
|
636 |
|
|
* @param out the output stream to the client
|
637 |
|
|
* @param params the Hashtable of parameters that should be included
|
638 |
|
|
* in the squery.
|
639 |
|
|
* @param response the response object linked to the client
|
640 |
|
|
* @param conn the database connection
|
641 |
|
|
*/
|
642 |
|
|
protected void handleSQuery(PrintWriter out, Hashtable params,
|
643 |
441
|
bojilova
|
HttpServletResponse response, String user, String group)
|
644 |
373
|
berkley
|
{
|
645 |
380
|
jones
|
String xmlquery = ((String[])params.get("query"))[0];
|
646 |
|
|
String qformat = ((String[])params.get("qformat"))[0];
|
647 |
465
|
berkley
|
String resultdoc = null;
|
648 |
|
|
String[] returndoc = null;
|
649 |
|
|
if(params.contains("returndoc"))
|
650 |
|
|
{
|
651 |
|
|
returndoc = (String[])params.get("returndoc");
|
652 |
|
|
}
|
653 |
|
|
|
654 |
|
|
Hashtable doclist = runQuery(xmlquery, user, group, returndoc);
|
655 |
|
|
//String resultdoc = createResultDocument(doclist, transformQuery(xmlquery));
|
656 |
444
|
berkley
|
|
657 |
465
|
berkley
|
resultdoc = createResultDocument(doclist, transformQuery(xmlquery));
|
658 |
|
|
|
659 |
380
|
jones
|
//format and transform the results
|
660 |
|
|
if(qformat.equals("html")) {
|
661 |
|
|
transformResultset(resultdoc, response, out);
|
662 |
|
|
} else if(qformat.equals("xml")) {
|
663 |
|
|
response.setContentType("text/xml");
|
664 |
|
|
out.println(resultdoc);
|
665 |
|
|
} else {
|
666 |
|
|
out.println("invalid qformat: " + qformat);
|
667 |
|
|
}
|
668 |
341
|
berkley
|
}
|
669 |
|
|
|
670 |
|
|
/**
|
671 |
380
|
jones
|
* Create the xml query, execute it and display the results.
|
672 |
|
|
*
|
673 |
|
|
* @param out the output stream to the client
|
674 |
|
|
* @param params the Hashtable of parameters that should be included
|
675 |
370
|
berkley
|
* in the squery.
|
676 |
380
|
jones
|
* @param response the response object linked to the client
|
677 |
370
|
berkley
|
*/
|
678 |
375
|
berkley
|
protected void handleQuery(PrintWriter out, Hashtable params,
|
679 |
441
|
bojilova
|
HttpServletResponse response, String user, String group)
|
680 |
341
|
berkley
|
{
|
681 |
370
|
berkley
|
//create the query and run it
|
682 |
465
|
berkley
|
String[] returndoc = null;
|
683 |
|
|
if(params.containsKey("returndoc"))
|
684 |
|
|
{
|
685 |
|
|
returndoc = (String[])params.get("returndoc");
|
686 |
|
|
}
|
687 |
373
|
berkley
|
String xmlquery = DBQuery.createSQuery(params);
|
688 |
465
|
berkley
|
Hashtable doclist = runQuery(xmlquery, user, group, returndoc);
|
689 |
|
|
String qformat = ((String[])params.get("qformat"))[0];
|
690 |
|
|
String resultdoc = null;
|
691 |
|
|
|
692 |
|
|
resultdoc = createResultDocument(doclist, transformQuery(params));
|
693 |
425
|
bojilova
|
|
694 |
370
|
berkley
|
//format and transform the results
|
695 |
380
|
jones
|
if(qformat.equals("html")) {
|
696 |
370
|
berkley
|
transformResultset(resultdoc, response, out);
|
697 |
380
|
jones
|
} else if(qformat.equals("xml")) {
|
698 |
370
|
berkley
|
response.setContentType("text/xml");
|
699 |
|
|
out.println(resultdoc);
|
700 |
443
|
berkley
|
} else {
|
701 |
370
|
berkley
|
out.println("invalid qformat: " + qformat);
|
702 |
|
|
}
|
703 |
341
|
berkley
|
}
|
704 |
|
|
|
705 |
|
|
/**
|
706 |
384
|
berkley
|
* Removes the <?xml version="x"?> tag from the beginning of xmlquery
|
707 |
|
|
* so it can properly be placed in the <query> tag of the resultset.
|
708 |
|
|
* This method is overwritable so that other applications can customize
|
709 |
|
|
* the structure of what is in the <query> tag.
|
710 |
|
|
*
|
711 |
|
|
* @param xmlquery is the query to remove the <?xml version="x"?> tag from.
|
712 |
|
|
*/
|
713 |
|
|
protected String transformQuery(Hashtable params)
|
714 |
|
|
{
|
715 |
|
|
//DBQuery.createSQuery is a re-calling of a previously called
|
716 |
|
|
//function but it is necessary
|
717 |
|
|
//so that overriding methods have access to the params hashtable
|
718 |
|
|
String xmlquery = DBQuery.createSQuery(params);
|
719 |
|
|
//the <?xml version="1.0"?> tag is the first 22 characters of the
|
720 |
|
|
xmlquery = xmlquery.trim();
|
721 |
|
|
int index = xmlquery.indexOf("?>");
|
722 |
|
|
return xmlquery.substring(index + 2, xmlquery.length());
|
723 |
|
|
}
|
724 |
|
|
|
725 |
|
|
/**
|
726 |
443
|
berkley
|
* removes the <?xml version="1.0"?> tag from the beginning. This takes a
|
727 |
|
|
* string as a param instead of a hashtable.
|
728 |
|
|
*
|
729 |
|
|
* @param xmlquery a string representing a query.
|
730 |
|
|
*/
|
731 |
|
|
protected String transformQuery(String xmlquery)
|
732 |
|
|
{
|
733 |
|
|
xmlquery = xmlquery.trim();
|
734 |
|
|
int index = xmlquery.indexOf("?>");
|
735 |
|
|
return xmlquery.substring(index + 2, xmlquery.length());
|
736 |
|
|
}
|
737 |
|
|
|
738 |
|
|
/**
|
739 |
380
|
jones
|
* Run the query and return a hashtable of results.
|
740 |
|
|
*
|
741 |
|
|
* @param xmlquery the query to run
|
742 |
|
|
*/
|
743 |
465
|
berkley
|
private Hashtable runQuery(String xmlquery, String user, String group,
|
744 |
|
|
String[] returndoc)
|
745 |
341
|
berkley
|
{
|
746 |
|
|
Hashtable doclist=null;
|
747 |
|
|
Connection conn = null;
|
748 |
|
|
try
|
749 |
|
|
{
|
750 |
441
|
bojilova
|
conn = util.getConnection();
|
751 |
|
|
DBQuery queryobj = new DBQuery(conn, saxparser);
|
752 |
465
|
berkley
|
doclist = queryobj.findDocuments(new StringReader(xmlquery),user,group,
|
753 |
|
|
returndoc);
|
754 |
441
|
bojilova
|
util.returnConnection(conn);
|
755 |
|
|
return doclist;
|
756 |
341
|
berkley
|
}
|
757 |
|
|
catch (Exception e)
|
758 |
|
|
{
|
759 |
441
|
bojilova
|
util.returnConnection(conn);
|
760 |
675
|
berkley
|
util.debugMessage("Error in MetacatServlet.runQuery: " + e.getMessage());
|
761 |
341
|
berkley
|
doclist = null;
|
762 |
|
|
return doclist;
|
763 |
|
|
}
|
764 |
|
|
}
|
765 |
|
|
|
766 |
380
|
jones
|
/**
|
767 |
370
|
berkley
|
* Transorms an xml resultset document to html and sends it to the browser
|
768 |
380
|
jones
|
*
|
769 |
370
|
berkley
|
* @param resultdoc the string representation of the document that needs
|
770 |
|
|
* to be transformed.
|
771 |
|
|
* @param response the HttpServletResponse object bound to the client.
|
772 |
|
|
* @param out the output stream to the client
|
773 |
375
|
berkley
|
*/
|
774 |
|
|
protected void transformResultset(String resultdoc,
|
775 |
380
|
jones
|
HttpServletResponse response,
|
776 |
|
|
PrintWriter out)
|
777 |
370
|
berkley
|
{
|
778 |
|
|
Connection conn = null;
|
779 |
380
|
jones
|
try {
|
780 |
370
|
berkley
|
conn = util.getConnection();
|
781 |
|
|
DBTransform trans = new DBTransform(conn);
|
782 |
|
|
response.setContentType("text/html");
|
783 |
|
|
trans.transformXMLDocument(resultdoc, "-//NCEAS//resultset//EN",
|
784 |
|
|
"-//W3C//HTML//EN", out);
|
785 |
382
|
berkley
|
util.returnConnection(conn);
|
786 |
|
|
}
|
787 |
|
|
catch(Exception e)
|
788 |
|
|
{
|
789 |
441
|
bojilova
|
util.returnConnection(conn);
|
790 |
370
|
berkley
|
}
|
791 |
|
|
}
|
792 |
|
|
|
793 |
355
|
berkley
|
/**
|
794 |
|
|
* Transforms a hashtable of documents to an xml or html result.
|
795 |
465
|
berkley
|
* If there is a returndoc, then it only displays documents of
|
796 |
|
|
* whatever type returndoc represents. If a result is found in a document
|
797 |
|
|
* that is not of type returndoc then this attempts to find a relation
|
798 |
|
|
* between this document and one that satifies the returndoc doctype.
|
799 |
380
|
jones
|
*
|
800 |
355
|
berkley
|
* @param doclist- the hashtable to transform
|
801 |
|
|
* @param xmlquery- the query that returned the dolist result
|
802 |
465
|
berkley
|
* @param resultdoc- the document type to backtrack to.
|
803 |
355
|
berkley
|
*/
|
804 |
375
|
berkley
|
protected String createResultDocument(Hashtable doclist, String xmlquery)
|
805 |
341
|
berkley
|
{
|
806 |
|
|
// Create a buffer to hold the xml result
|
807 |
|
|
StringBuffer resultset = new StringBuffer();
|
808 |
|
|
|
809 |
382
|
berkley
|
// Print the resulting root nodes
|
810 |
341
|
berkley
|
String docid = null;
|
811 |
|
|
String document = null;
|
812 |
|
|
resultset.append("<?xml version=\"1.0\"?>\n");
|
813 |
|
|
resultset.append("<resultset>\n");
|
814 |
465
|
berkley
|
|
815 |
384
|
berkley
|
resultset.append(" <query>" + xmlquery + "</query>");
|
816 |
478
|
berkley
|
|
817 |
|
|
if(doclist != null)
|
818 |
341
|
berkley
|
{
|
819 |
478
|
berkley
|
Enumeration doclistkeys = doclist.keys();
|
820 |
|
|
while (doclistkeys.hasMoreElements())
|
821 |
|
|
{
|
822 |
|
|
docid = (String)doclistkeys.nextElement();
|
823 |
|
|
document = (String)doclist.get(docid);
|
824 |
|
|
resultset.append(" <document>" + document + "</document>");
|
825 |
|
|
}
|
826 |
|
|
}
|
827 |
|
|
|
828 |
341
|
berkley
|
resultset.append("</resultset>");
|
829 |
444
|
berkley
|
//System.out.println(resultset.toString());
|
830 |
370
|
berkley
|
return resultset.toString();
|
831 |
341
|
berkley
|
}
|
832 |
437
|
berkley
|
|
833 |
|
|
/**
|
834 |
|
|
* Handle the request to view the abstract of a document.
|
835 |
444
|
berkley
|
* The abstractpath CGI parameter gives the xml path to the abstract
|
836 |
|
|
* node.
|
837 |
437
|
berkley
|
*/
|
838 |
|
|
private void handleViewAbstractAction(PrintWriter out, Hashtable params,
|
839 |
|
|
HttpServletResponse response) throws IOException, SQLException
|
840 |
|
|
{
|
841 |
|
|
String abstractpath = null;
|
842 |
|
|
String docid = null;
|
843 |
|
|
Connection conn = null;
|
844 |
|
|
response.setContentType("text/html");
|
845 |
|
|
try
|
846 |
|
|
{
|
847 |
|
|
docid = ((String[])params.get("docid"))[0];
|
848 |
|
|
if(params.containsKey("abstractpath"))
|
849 |
|
|
{
|
850 |
444
|
berkley
|
//the CGI parameter abstractpath holds the path to the abstract
|
851 |
|
|
//that should be displayed.
|
852 |
437
|
berkley
|
abstractpath = ((String[])params.get("abstractpath"))[0];
|
853 |
|
|
}
|
854 |
|
|
else
|
855 |
|
|
{
|
856 |
|
|
out.println("error: no abstractpath parameter");
|
857 |
|
|
}
|
858 |
|
|
conn = util.getConnection();
|
859 |
|
|
|
860 |
|
|
Object[] abstracts = DBQuery.getNodeContent(abstractpath, docid, conn);
|
861 |
|
|
|
862 |
444
|
berkley
|
out.println("<html><head><title>Abstract</title></head>");
|
863 |
|
|
out.println("<body bgcolor=\"white\"><h1>Abstract</h1>");
|
864 |
437
|
berkley
|
for(int i=0; i<abstracts.length; i++)
|
865 |
|
|
{
|
866 |
|
|
out.println("<p>" + (String)abstracts[i] + "</p>");
|
867 |
|
|
}
|
868 |
|
|
out.println("</body></html>");
|
869 |
|
|
}
|
870 |
|
|
catch (IOException ioe)
|
871 |
|
|
{
|
872 |
675
|
berkley
|
util.debugMessage("error in MetacatServlet.handlegetabstract: " +
|
873 |
|
|
ioe.getMessage());
|
874 |
|
|
System.out.println("IO error in MetacatServlet.handlegetabstract: " +
|
875 |
|
|
ioe.getMessage());
|
876 |
437
|
berkley
|
}
|
877 |
|
|
catch(SQLException sqle)
|
878 |
|
|
{
|
879 |
675
|
berkley
|
util.debugMessage("sql error in MetacatServLet.handlegetabstract: " +
|
880 |
|
|
sqle.getMessage());
|
881 |
|
|
System.out.println("sql error in MetacatServLet.handlegetabstract: " +
|
882 |
|
|
sqle.getMessage());
|
883 |
437
|
berkley
|
}
|
884 |
|
|
catch(Exception e)
|
885 |
|
|
{
|
886 |
444
|
berkley
|
util.debugMessage("error in handlegetabstract: " + e.getMessage());
|
887 |
675
|
berkley
|
System.out.println("error in MetacatServlEt.handlegetabstract: " +
|
888 |
|
|
e.getMessage());
|
889 |
437
|
berkley
|
}
|
890 |
|
|
|
891 |
|
|
util.returnConnection(conn);
|
892 |
|
|
}
|
893 |
181
|
jones
|
|
894 |
50
|
jones
|
/**
|
895 |
453
|
berkley
|
* Handle the database getrelateddocument request and return a XML document,
|
896 |
|
|
* possibly transformed from XML into HTML
|
897 |
|
|
*/
|
898 |
566
|
jones
|
private void handleGetRelatedDocumentAction(PrintWriter out, Hashtable params,
|
899 |
|
|
HttpServletResponse response, URL murl)
|
900 |
453
|
berkley
|
throws ClassNotFoundException, IOException, SQLException
|
901 |
|
|
{
|
902 |
|
|
String docid = null;
|
903 |
|
|
Connection conn = null;
|
904 |
|
|
|
905 |
566
|
jones
|
//if(params.containsKey("url"))
|
906 |
|
|
//{//the identifier for the related document is contained in the URL param
|
907 |
453
|
berkley
|
try
|
908 |
|
|
{
|
909 |
|
|
DocumentImpl xmldoc=null;
|
910 |
566
|
jones
|
//MetacatURL murl = new MetacatURL(((String[])params.get("url"))[0]);
|
911 |
|
|
if(murl.getProtocol().equals("metacat"))
|
912 |
453
|
berkley
|
{//get the document from the database if it is the right type of url
|
913 |
566
|
jones
|
//Hashtable murlParams = murl.getHashParams();
|
914 |
|
|
Hashtable murlParams = util.parseQuery(murl.getQuery());
|
915 |
473
|
berkley
|
if(murlParams.containsKey("docid"))
|
916 |
453
|
berkley
|
{//the docid should be first
|
917 |
473
|
berkley
|
docid = (String)murlParams.get("docid"); //get the docid value
|
918 |
453
|
berkley
|
conn = util.getConnection();
|
919 |
|
|
xmldoc = new DocumentImpl(conn, docid);
|
920 |
485
|
berkley
|
String qformat = ((String[])params.get("qformat"))[0];
|
921 |
|
|
if (qformat.equals("xml"))
|
922 |
|
|
{
|
923 |
|
|
// set content type and other response header fields first
|
924 |
|
|
response.setContentType("text/xml");
|
925 |
|
|
xmldoc.toXml(out);
|
926 |
|
|
//out.println(xmldoc);
|
927 |
|
|
}
|
928 |
|
|
else if (qformat.equals("html"))
|
929 |
|
|
{
|
930 |
|
|
response.setContentType("text/html");
|
931 |
|
|
// Look up the document type
|
932 |
|
|
String sourcetype = xmldoc.getDoctype();
|
933 |
|
|
// Transform the document to the new doctype
|
934 |
|
|
DBTransform dbt = new DBTransform(conn);
|
935 |
|
|
dbt.transformXMLDocument(xmldoc.toString(), sourcetype,
|
936 |
|
|
"-//W3C//HTML//EN", out);
|
937 |
|
|
}
|
938 |
|
|
|
939 |
473
|
berkley
|
util.returnConnection(conn);
|
940 |
453
|
berkley
|
}
|
941 |
|
|
else
|
942 |
|
|
{
|
943 |
|
|
//throw new Exception("handleGetDocument: bad URL");
|
944 |
|
|
System.err.println("handleGetDocument: bad URL");
|
945 |
|
|
}
|
946 |
|
|
}
|
947 |
566
|
jones
|
else if(murl.getProtocol().equals("http"))
|
948 |
453
|
berkley
|
{//get the document from the internet
|
949 |
566
|
jones
|
//Hashtable murlParams = murl.getHashParams();
|
950 |
|
|
Hashtable murlParams = util.parseQuery(murl.getQuery());
|
951 |
473
|
berkley
|
if(murlParams.containsKey("httpurl"))
|
952 |
453
|
berkley
|
{//httpurl is the param name for an http url.
|
953 |
473
|
berkley
|
URL urlconn = new URL((String)murlParams.get("httpurl"));
|
954 |
|
|
//create a new url obj.
|
955 |
458
|
berkley
|
//DataInputStream htmldoc = new DataInputStream(urlconn.openStream());
|
956 |
|
|
BufferedReader htmldoc = new BufferedReader(
|
957 |
|
|
new InputStreamReader(urlconn.openStream()));
|
958 |
453
|
berkley
|
//bind a data stream.
|
959 |
|
|
try
|
960 |
|
|
{ //display the document
|
961 |
|
|
String line=null;
|
962 |
|
|
while((line = htmldoc.readLine()) != null)
|
963 |
|
|
{
|
964 |
|
|
out.println(line);
|
965 |
|
|
}
|
966 |
|
|
}
|
967 |
|
|
catch(Exception e)
|
968 |
|
|
{
|
969 |
675
|
berkley
|
System.out.println("error viewing html document from " +
|
970 |
|
|
"MetacatServlet.handleGetRelatedDocumentAction: " +
|
971 |
|
|
e.getMessage());
|
972 |
453
|
berkley
|
}
|
973 |
|
|
}
|
974 |
|
|
}
|
975 |
|
|
}
|
976 |
|
|
catch (McdbException e) {
|
977 |
|
|
response.setContentType("text/xml");
|
978 |
|
|
e.toXml(out);
|
979 |
|
|
} catch (Throwable t) {
|
980 |
|
|
response.setContentType("text/html");
|
981 |
|
|
out.println(t.getMessage());
|
982 |
|
|
} finally {
|
983 |
|
|
util.returnConnection(conn);
|
984 |
|
|
}
|
985 |
566
|
jones
|
//} // end if
|
986 |
453
|
berkley
|
}
|
987 |
|
|
|
988 |
|
|
/**
|
989 |
566
|
jones
|
* Handle the database read request and return an XML document,
|
990 |
50
|
jones
|
* possibly transformed from XML into HTML
|
991 |
|
|
*/
|
992 |
636
|
berkley
|
private void handleReadAction(/*PrintWriter out,*/ Hashtable params,
|
993 |
661
|
berkley
|
HttpServletResponse response, String username)
|
994 |
566
|
jones
|
throws ClassNotFoundException, IOException, SQLException
|
995 |
|
|
{
|
996 |
636
|
berkley
|
PrintWriter out;
|
997 |
566
|
jones
|
try {
|
998 |
|
|
//MetacatURL murl = new MetacatURL(((String[])params.get("docid"))[0]);
|
999 |
636
|
berkley
|
if(params.containsKey(new String("qformat")) &&
|
1000 |
|
|
((String[])params.get("qformat"))[0].equals("bin"))
|
1001 |
|
|
{
|
1002 |
661
|
berkley
|
handleGetData(params, response, username);
|
1003 |
636
|
berkley
|
}
|
1004 |
|
|
else
|
1005 |
|
|
{
|
1006 |
|
|
out = response.getWriter();
|
1007 |
|
|
URL murl = new URL(((String[])params.get("docid"))[0]);
|
1008 |
|
|
handleGetRelatedDocumentAction(out, params, response, murl);
|
1009 |
|
|
}
|
1010 |
566
|
jones
|
} catch (MalformedURLException mue) {
|
1011 |
636
|
berkley
|
out = response.getWriter();
|
1012 |
566
|
jones
|
handleGetDocumentAction(out, params, response);
|
1013 |
|
|
}
|
1014 |
|
|
}
|
1015 |
636
|
berkley
|
|
1016 |
|
|
/**
|
1017 |
|
|
* Handle the read of a data file.
|
1018 |
|
|
*/
|
1019 |
|
|
private void handleGetData(Hashtable params,
|
1020 |
661
|
berkley
|
HttpServletResponse response, String username)
|
1021 |
636
|
berkley
|
{
|
1022 |
|
|
String docid = null;
|
1023 |
|
|
try
|
1024 |
|
|
{
|
1025 |
|
|
URL murl = new URL(((String[])params.get("docid"))[0]);
|
1026 |
|
|
Hashtable murlParams = util.parseQuery(murl.getQuery());
|
1027 |
|
|
if(murlParams.containsKey("docid"))
|
1028 |
|
|
{
|
1029 |
641
|
berkley
|
docid = (String)murlParams.get("docid");
|
1030 |
636
|
berkley
|
}
|
1031 |
|
|
}
|
1032 |
|
|
catch(MalformedURLException mue)
|
1033 |
|
|
{
|
1034 |
|
|
docid = ((String[])params.get("docid"))[0];
|
1035 |
|
|
}
|
1036 |
|
|
|
1037 |
|
|
File f = null;
|
1038 |
|
|
FileInputStream fin = null;
|
1039 |
|
|
Connection conn;
|
1040 |
|
|
|
1041 |
|
|
try
|
1042 |
|
|
{
|
1043 |
|
|
StringBuffer sql = new StringBuffer();
|
1044 |
|
|
sql.append("select docname from xml_documents where docid like '");
|
1045 |
|
|
sql.append(docid).append("'");
|
1046 |
|
|
conn = util.openDBConnection();
|
1047 |
661
|
berkley
|
|
1048 |
|
|
AccessControlList aclobj = new AccessControlList(conn);
|
1049 |
|
|
boolean hasPermission = aclobj.hasPermission("READ",username,docid);
|
1050 |
|
|
|
1051 |
|
|
if(!hasPermission)
|
1052 |
|
|
{
|
1053 |
|
|
response.setContentType("text/html");
|
1054 |
|
|
PrintWriter out = response.getWriter();
|
1055 |
|
|
out.println("Error: you do not have permission to view this document");
|
1056 |
|
|
return;
|
1057 |
|
|
}
|
1058 |
|
|
response.setContentType("application/octet-stream");
|
1059 |
|
|
ServletOutputStream sosout = response.getOutputStream();
|
1060 |
636
|
berkley
|
PreparedStatement pstmt = conn.prepareStatement(sql.toString());
|
1061 |
|
|
pstmt.execute();
|
1062 |
|
|
ResultSet rs = pstmt.getResultSet();
|
1063 |
|
|
boolean tablehasrows = rs.next();
|
1064 |
|
|
while(tablehasrows)
|
1065 |
|
|
{
|
1066 |
|
|
//get the file stream from the file then send it to the output stream
|
1067 |
|
|
String filepath = util.getOption("datafilepath");
|
1068 |
|
|
if(!filepath.endsWith("/"))
|
1069 |
|
|
{
|
1070 |
|
|
filepath += "/";
|
1071 |
|
|
}
|
1072 |
|
|
f = new File(filepath + rs.getString(1));
|
1073 |
|
|
fin = new FileInputStream(f);
|
1074 |
661
|
berkley
|
|
1075 |
636
|
berkley
|
int b = fin.read();
|
1076 |
|
|
while(b != -1)
|
1077 |
|
|
{
|
1078 |
|
|
sosout.write(b);
|
1079 |
|
|
b = fin.read();
|
1080 |
|
|
}
|
1081 |
|
|
tablehasrows = rs.next();
|
1082 |
|
|
}
|
1083 |
|
|
|
1084 |
|
|
fin.close();
|
1085 |
667
|
berkley
|
pstmt.close();
|
1086 |
636
|
berkley
|
conn.close();
|
1087 |
|
|
}
|
1088 |
|
|
catch(Exception e)
|
1089 |
|
|
{
|
1090 |
675
|
berkley
|
System.out.println("error in MetacatServlet.handleGetData: " +
|
1091 |
|
|
e.getMessage());
|
1092 |
636
|
berkley
|
e.printStackTrace(System.out);
|
1093 |
|
|
}
|
1094 |
|
|
}
|
1095 |
566
|
jones
|
|
1096 |
|
|
/**
|
1097 |
|
|
* Handle the database read request and return an XML document,
|
1098 |
|
|
* possibly transformed from XML into HTML
|
1099 |
|
|
*/
|
1100 |
382
|
berkley
|
private void handleGetDocumentAction(PrintWriter out, Hashtable params,
|
1101 |
87
|
jones
|
HttpServletResponse response)
|
1102 |
|
|
throws ClassNotFoundException, IOException, SQLException {
|
1103 |
102
|
jones
|
String docidstr = null;
|
1104 |
162
|
bojilova
|
String docid = null;
|
1105 |
102
|
jones
|
String doc = null;
|
1106 |
309
|
bojilova
|
Connection conn = null;
|
1107 |
|
|
|
1108 |
102
|
jones
|
try {
|
1109 |
87
|
jones
|
// Find the document id number
|
1110 |
102
|
jones
|
docidstr = ((String[])params.get("docid"))[0];
|
1111 |
162
|
bojilova
|
docid = docidstr;
|
1112 |
625
|
berkley
|
|
1113 |
309
|
bojilova
|
conn = util.getConnection();
|
1114 |
393
|
jones
|
DocumentImpl xmldoc = new DocumentImpl(conn, docid);
|
1115 |
|
|
// Get the document indicated from the db
|
1116 |
|
|
//doc = docreader.readXMLDocument(docid);
|
1117 |
85
|
jones
|
|
1118 |
87
|
jones
|
// Return the document in XML or HTML format
|
1119 |
437
|
berkley
|
String qformat=null;
|
1120 |
|
|
if(params.containsKey("qformat"))
|
1121 |
|
|
{
|
1122 |
|
|
qformat = ((String[])params.get("qformat"))[0];
|
1123 |
|
|
}
|
1124 |
|
|
else
|
1125 |
|
|
{
|
1126 |
|
|
qformat = "html";
|
1127 |
|
|
}
|
1128 |
|
|
if (qformat.equals("xml")) {
|
1129 |
85
|
jones
|
// set content type and other response header fields first
|
1130 |
|
|
response.setContentType("text/xml");
|
1131 |
431
|
jones
|
xmldoc.toXml(out);
|
1132 |
|
|
//out.println(xmldoc);
|
1133 |
85
|
jones
|
} else if (qformat.equals("html")) {
|
1134 |
437
|
berkley
|
response.setContentType("text/html");
|
1135 |
87
|
jones
|
// Look up the document type
|
1136 |
393
|
jones
|
String sourcetype = xmldoc.getDoctype();
|
1137 |
87
|
jones
|
// Transform the document to the new doctype
|
1138 |
393
|
jones
|
DBTransform dbt = new DBTransform(conn);
|
1139 |
|
|
dbt.transformXMLDocument(xmldoc.toString(), sourcetype,
|
1140 |
|
|
"-//W3C//HTML//EN", out);
|
1141 |
85
|
jones
|
}
|
1142 |
343
|
jones
|
} catch (McdbException e) {
|
1143 |
|
|
response.setContentType("text/xml");
|
1144 |
|
|
e.toXml(out);
|
1145 |
|
|
} catch (Throwable t) {
|
1146 |
309
|
bojilova
|
response.setContentType("text/html");
|
1147 |
343
|
jones
|
out.println(t.getMessage());
|
1148 |
309
|
bojilova
|
} finally {
|
1149 |
320
|
bojilova
|
util.returnConnection(conn);
|
1150 |
309
|
bojilova
|
}
|
1151 |
|
|
|
1152 |
49
|
jones
|
}
|
1153 |
55
|
jones
|
|
1154 |
|
|
/**
|
1155 |
|
|
* Handle the database putdocument request and write an XML document
|
1156 |
|
|
* to the database connection
|
1157 |
|
|
*/
|
1158 |
382
|
berkley
|
private void handleInsertOrUpdateAction(PrintWriter out, Hashtable params,
|
1159 |
425
|
bojilova
|
HttpServletResponse response, String user, String group) {
|
1160 |
59
|
jones
|
|
1161 |
309
|
bojilova
|
Connection conn = null;
|
1162 |
|
|
|
1163 |
204
|
jones
|
try {
|
1164 |
|
|
// Get the document indicated
|
1165 |
|
|
String[] doctext = (String[])params.get("doctext");
|
1166 |
557
|
bojilova
|
|
1167 |
680
|
bojilova
|
String pub = null;
|
1168 |
|
|
if (params.containsKey("public")) {
|
1169 |
|
|
pub = ((String[])params.get("public"))[0];
|
1170 |
557
|
bojilova
|
}
|
1171 |
680
|
bojilova
|
|
1172 |
598
|
bojilova
|
StringReader dtd = null;
|
1173 |
680
|
bojilova
|
if (params.containsKey("dtdtext")) {
|
1174 |
598
|
bojilova
|
String[] dtdtext = (String[])params.get("dtdtext");
|
1175 |
|
|
try {
|
1176 |
619
|
bojilova
|
if ( !dtdtext[0].equals("") ) {
|
1177 |
|
|
dtd = new StringReader(dtdtext[0]);
|
1178 |
|
|
}
|
1179 |
598
|
bojilova
|
} catch (NullPointerException npe) {}
|
1180 |
|
|
}
|
1181 |
557
|
bojilova
|
|
1182 |
204
|
jones
|
StringReader xml = null;
|
1183 |
695
|
bojilova
|
boolean validate = false;
|
1184 |
204
|
jones
|
try {
|
1185 |
695
|
bojilova
|
// look inside XML Document for <!DOCTYPE ... PUBLIC/SYSTEM ... >
|
1186 |
|
|
// in order to decide whether to use validation parser
|
1187 |
|
|
validate = validateXML(doctext[0]);
|
1188 |
204
|
jones
|
xml = new StringReader(doctext[0]);
|
1189 |
59
|
jones
|
|
1190 |
204
|
jones
|
String[] action = (String[])params.get("action");
|
1191 |
|
|
String[] docid = (String[])params.get("docid");
|
1192 |
|
|
String newdocid = null;
|
1193 |
203
|
jones
|
|
1194 |
204
|
jones
|
String doAction = null;
|
1195 |
|
|
if (action[0].equals("insert")) {
|
1196 |
|
|
doAction = "INSERT";
|
1197 |
|
|
} else if (action[0].equals("update")) {
|
1198 |
|
|
doAction = "UPDATE";
|
1199 |
|
|
}
|
1200 |
203
|
jones
|
|
1201 |
204
|
jones
|
try {
|
1202 |
680
|
bojilova
|
// get a connection from the pool
|
1203 |
|
|
conn = util.getConnection();
|
1204 |
408
|
jones
|
|
1205 |
680
|
bojilova
|
// write the document to the database
|
1206 |
|
|
try {
|
1207 |
|
|
String accNumber = docid[0];
|
1208 |
|
|
if (accNumber.equals("")) {
|
1209 |
|
|
accNumber = null;
|
1210 |
309
|
bojilova
|
}
|
1211 |
680
|
bojilova
|
newdocid = DocumentImpl.write(conn, xml, pub, dtd, doAction,
|
1212 |
695
|
bojilova
|
accNumber, user, group, validate);
|
1213 |
680
|
bojilova
|
} catch (NullPointerException npe) {
|
1214 |
|
|
newdocid = DocumentImpl.write(conn, xml, pub, dtd, doAction,
|
1215 |
695
|
bojilova
|
null, user, group, validate);
|
1216 |
680
|
bojilova
|
}
|
1217 |
309
|
bojilova
|
} finally {
|
1218 |
320
|
bojilova
|
util.returnConnection(conn);
|
1219 |
309
|
bojilova
|
}
|
1220 |
|
|
|
1221 |
204
|
jones
|
// set content type and other response header fields first
|
1222 |
|
|
response.setContentType("text/xml");
|
1223 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
1224 |
|
|
out.println("<success>");
|
1225 |
|
|
out.println("<docid>" + newdocid + "</docid>");
|
1226 |
|
|
out.println("</success>");
|
1227 |
|
|
|
1228 |
203
|
jones
|
} catch (NullPointerException npe) {
|
1229 |
204
|
jones
|
response.setContentType("text/xml");
|
1230 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
1231 |
|
|
out.println("<error>");
|
1232 |
|
|
out.println(npe.getMessage());
|
1233 |
|
|
out.println("</error>");
|
1234 |
55
|
jones
|
}
|
1235 |
204
|
jones
|
} catch (Exception e) {
|
1236 |
|
|
response.setContentType("text/xml");
|
1237 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
1238 |
|
|
out.println("<error>");
|
1239 |
|
|
out.println(e.getMessage());
|
1240 |
|
|
if (e instanceof SAXException) {
|
1241 |
|
|
Exception e2 = ((SAXException)e).getException();
|
1242 |
|
|
out.println("<error>");
|
1243 |
|
|
out.println(e2.getMessage());
|
1244 |
|
|
out.println("</error>");
|
1245 |
|
|
}
|
1246 |
|
|
//e.printStackTrace(out);
|
1247 |
|
|
out.println("</error>");
|
1248 |
203
|
jones
|
}
|
1249 |
55
|
jones
|
}
|
1250 |
203
|
jones
|
|
1251 |
|
|
/**
|
1252 |
695
|
bojilova
|
* Parse XML Document to look for <!DOCTYPE ... PUBLIC/SYSTEM ... >
|
1253 |
|
|
* in order to decide whether to use validation parser
|
1254 |
|
|
*/
|
1255 |
|
|
private static boolean validateXML(String xmltext) throws IOException {
|
1256 |
|
|
|
1257 |
|
|
StringReader xmlreader = new StringReader(xmltext);
|
1258 |
|
|
StringBuffer cbuff = new StringBuffer();
|
1259 |
|
|
java.util.Stack st = new java.util.Stack();
|
1260 |
|
|
boolean validate = false;
|
1261 |
|
|
int c;
|
1262 |
|
|
int inx;
|
1263 |
|
|
|
1264 |
|
|
// read from the stream until find the keywords
|
1265 |
|
|
while ( (st.empty() || st.size()<4) && ((c = xmlreader.read()) != -1) ) {
|
1266 |
|
|
cbuff.append((char)c);
|
1267 |
|
|
|
1268 |
|
|
// "<!DOCTYPE" keyword is found; put it in the stack
|
1269 |
|
|
if ( (inx = cbuff.toString().indexOf("<!DOCTYPE")) != -1 ) {
|
1270 |
|
|
cbuff = new StringBuffer();
|
1271 |
|
|
st.push("<!DOCTYPE");
|
1272 |
|
|
}
|
1273 |
|
|
// "PUBLIC" keyword is found; put it in the stack
|
1274 |
|
|
if ( (inx = cbuff.toString().indexOf("PUBLIC")) != -1 ) {
|
1275 |
|
|
cbuff = new StringBuffer();
|
1276 |
|
|
st.push("PUBLIC");
|
1277 |
|
|
}
|
1278 |
|
|
// "SYSTEM" keyword is found; put it in the stack
|
1279 |
|
|
if ( (inx = cbuff.toString().indexOf("SYSTEM")) != -1 ) {
|
1280 |
|
|
cbuff = new StringBuffer();
|
1281 |
|
|
st.push("SYSTEM");
|
1282 |
|
|
}
|
1283 |
|
|
// ">" character is found; put it in the stack
|
1284 |
|
|
// ">" is found twice: fisrt from <?xml ...?>
|
1285 |
|
|
// and second from <!DOCTYPE ... >
|
1286 |
|
|
if ( (inx = cbuff.toString().indexOf(">")) != -1 ) {
|
1287 |
|
|
cbuff = new StringBuffer();
|
1288 |
|
|
st.push(">");
|
1289 |
|
|
}
|
1290 |
|
|
}
|
1291 |
|
|
|
1292 |
|
|
// close the stream
|
1293 |
|
|
xmlreader.close();
|
1294 |
|
|
|
1295 |
|
|
// check the stack whether it contains the keywords:
|
1296 |
|
|
// "<!DOCTYPE", "PUBLIC" or "SYSTEM", and ">" in this order
|
1297 |
|
|
if ( st.size() == 4 ) {
|
1298 |
|
|
if ( ((String)st.pop()).equals(">") &&
|
1299 |
|
|
( ((String)st.peek()).equals("PUBLIC") |
|
1300 |
|
|
((String)st.pop()).equals("SYSTEM") ) &&
|
1301 |
|
|
((String)st.pop()).equals("<!DOCTYPE") ) {
|
1302 |
|
|
validate = true;
|
1303 |
|
|
}
|
1304 |
|
|
}
|
1305 |
|
|
|
1306 |
|
|
System.out.println("Validation is " + validate);
|
1307 |
|
|
return validate;
|
1308 |
|
|
}
|
1309 |
|
|
|
1310 |
|
|
/**
|
1311 |
203
|
jones
|
* Handle the database delete request and delete an XML document
|
1312 |
|
|
* from the database connection
|
1313 |
|
|
*/
|
1314 |
|
|
private void handleDeleteAction(PrintWriter out, Hashtable params,
|
1315 |
425
|
bojilova
|
HttpServletResponse response, String user, String group) {
|
1316 |
203
|
jones
|
|
1317 |
|
|
String[] docid = (String[])params.get("docid");
|
1318 |
309
|
bojilova
|
Connection conn = null;
|
1319 |
203
|
jones
|
|
1320 |
|
|
// delete the document from the database
|
1321 |
|
|
try {
|
1322 |
309
|
bojilova
|
// get a connection from the pool
|
1323 |
|
|
conn = util.getConnection();
|
1324 |
203
|
jones
|
// NOTE -- NEED TO TEST HERE
|
1325 |
408
|
jones
|
// FOR EXISTENCE OF DOCID PARAM
|
1326 |
203
|
jones
|
// BEFORE ACCESSING ARRAY
|
1327 |
375
|
berkley
|
try {
|
1328 |
425
|
bojilova
|
DocumentImpl.delete(conn, docid[0], user, group);
|
1329 |
204
|
jones
|
response.setContentType("text/xml");
|
1330 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
1331 |
|
|
out.println("<success>");
|
1332 |
203
|
jones
|
out.println("Document deleted.");
|
1333 |
204
|
jones
|
out.println("</success>");
|
1334 |
203
|
jones
|
} catch (AccessionNumberException ane) {
|
1335 |
204
|
jones
|
response.setContentType("text/xml");
|
1336 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
1337 |
|
|
out.println("<error>");
|
1338 |
|
|
out.println("Error deleting document!!!");
|
1339 |
203
|
jones
|
out.println(ane.getMessage());
|
1340 |
204
|
jones
|
out.println("</error>");
|
1341 |
203
|
jones
|
}
|
1342 |
204
|
jones
|
} catch (Exception e) {
|
1343 |
|
|
response.setContentType("text/xml");
|
1344 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
1345 |
|
|
out.println("<error>");
|
1346 |
|
|
out.println(e.getMessage());
|
1347 |
|
|
out.println("</error>");
|
1348 |
309
|
bojilova
|
} finally {
|
1349 |
320
|
bojilova
|
util.returnConnection(conn);
|
1350 |
309
|
bojilova
|
}
|
1351 |
203
|
jones
|
}
|
1352 |
68
|
higgins
|
|
1353 |
|
|
/**
|
1354 |
380
|
jones
|
* Handle the validation request and return the results to the requestor
|
1355 |
68
|
higgins
|
*/
|
1356 |
185
|
jones
|
private void handleValidateAction(PrintWriter out, Hashtable params,
|
1357 |
|
|
HttpServletResponse response) {
|
1358 |
68
|
higgins
|
|
1359 |
103
|
jones
|
// Get the document indicated
|
1360 |
|
|
String valtext = null;
|
1361 |
309
|
bojilova
|
|
1362 |
103
|
jones
|
try {
|
1363 |
|
|
valtext = ((String[])params.get("valtext"))[0];
|
1364 |
|
|
} catch (Exception nullpe) {
|
1365 |
68
|
higgins
|
|
1366 |
309
|
bojilova
|
Connection conn = null;
|
1367 |
162
|
bojilova
|
String docid = null;
|
1368 |
103
|
jones
|
try {
|
1369 |
|
|
// Find the document id number
|
1370 |
185
|
jones
|
docid = ((String[])params.get("docid"))[0];
|
1371 |
309
|
bojilova
|
|
1372 |
|
|
// get a connection from the pool
|
1373 |
|
|
conn = util.getConnection();
|
1374 |
393
|
jones
|
|
1375 |
309
|
bojilova
|
// Get the document indicated from the db
|
1376 |
393
|
jones
|
DocumentImpl xmldoc = new DocumentImpl(conn, docid);
|
1377 |
|
|
valtext = xmldoc.toString();
|
1378 |
185
|
jones
|
|
1379 |
103
|
jones
|
} catch (NullPointerException npe) {
|
1380 |
253
|
jones
|
response.setContentType("text/xml");
|
1381 |
|
|
out.println("<error>Error getting document ID: " + docid + "</error>");
|
1382 |
320
|
bojilova
|
if ( conn != null ) { util.returnConnection(conn); }
|
1383 |
380
|
jones
|
return;
|
1384 |
309
|
bojilova
|
} catch (Exception e) {
|
1385 |
|
|
response.setContentType("text/html");
|
1386 |
|
|
out.println(e.getMessage());
|
1387 |
|
|
} finally {
|
1388 |
320
|
bojilova
|
util.returnConnection(conn);
|
1389 |
309
|
bojilova
|
}
|
1390 |
103
|
jones
|
}
|
1391 |
68
|
higgins
|
|
1392 |
309
|
bojilova
|
Connection conn = null;
|
1393 |
103
|
jones
|
try {
|
1394 |
309
|
bojilova
|
// get a connection from the pool
|
1395 |
|
|
conn = util.getConnection();
|
1396 |
253
|
jones
|
DBValidate valobj = new DBValidate(saxparser,conn);
|
1397 |
185
|
jones
|
boolean valid = valobj.validateString(valtext);
|
1398 |
68
|
higgins
|
|
1399 |
|
|
// set content type and other response header fields first
|
1400 |
253
|
jones
|
response.setContentType("text/xml");
|
1401 |
|
|
out.println(valobj.returnErrors());
|
1402 |
|
|
|
1403 |
103
|
jones
|
} catch (NullPointerException npe2) {
|
1404 |
|
|
// set content type and other response header fields first
|
1405 |
253
|
jones
|
response.setContentType("text/xml");
|
1406 |
|
|
out.println("<error>Error validating document.</error>");
|
1407 |
309
|
bojilova
|
} catch (Exception e) {
|
1408 |
|
|
response.setContentType("text/html");
|
1409 |
|
|
out.println(e.getMessage());
|
1410 |
|
|
} finally {
|
1411 |
320
|
bojilova
|
util.returnConnection(conn);
|
1412 |
309
|
bojilova
|
}
|
1413 |
103
|
jones
|
}
|
1414 |
87
|
jones
|
|
1415 |
|
|
/**
|
1416 |
380
|
jones
|
* Handle the document request and return the results to the requestor
|
1417 |
458
|
berkley
|
* If a docid is passed in through the params then that document
|
1418 |
|
|
* will be retrieved form the DB and put in the zip file.
|
1419 |
|
|
* In addition if 1 or more relations parameters are passed, those file
|
1420 |
|
|
* will be zipped as well. Currently this is only implemented for
|
1421 |
|
|
* metacat:// and http:// files. Support should be added for srb:// files
|
1422 |
|
|
* as well.
|
1423 |
91
|
higgins
|
*/
|
1424 |
458
|
berkley
|
private void handleGetDataDocumentAction(ServletOutputStream out,
|
1425 |
|
|
Hashtable params,
|
1426 |
185
|
jones
|
HttpServletResponse response) {
|
1427 |
458
|
berkley
|
//find the related files, get them from their source and zip them into
|
1428 |
|
|
//a zip file.
|
1429 |
|
|
try
|
1430 |
|
|
{
|
1431 |
|
|
Connection conn = util.getConnection();
|
1432 |
|
|
String currentDocid = ((String[])params.get("docid"))[0];
|
1433 |
|
|
ZipOutputStream zout = new ZipOutputStream(out);
|
1434 |
|
|
byte[] bytestring = null;
|
1435 |
|
|
ZipEntry zentry = null;
|
1436 |
|
|
DocumentImpl xmldoc = null;
|
1437 |
|
|
String[] reldocs = null;
|
1438 |
|
|
|
1439 |
|
|
if(params.containsKey("relation"))
|
1440 |
|
|
{ //get the relations from the parameters.
|
1441 |
|
|
reldocs = ((String[])params.get("relation"));
|
1442 |
|
|
}
|
1443 |
|
|
else
|
1444 |
|
|
{ //let the for loop know that there are no relations to zip
|
1445 |
|
|
reldocs = new String[0];
|
1446 |
|
|
}
|
1447 |
|
|
|
1448 |
|
|
//write the base file to the zip file.
|
1449 |
|
|
xmldoc = new DocumentImpl(conn, currentDocid);
|
1450 |
|
|
bytestring = (xmldoc.toString()).getBytes();
|
1451 |
|
|
zentry = new ZipEntry(currentDocid + ".xml");
|
1452 |
|
|
//create a new zip entry and write the file to the stream
|
1453 |
|
|
zentry.setSize(bytestring.length);
|
1454 |
|
|
zout.putNextEntry(zentry);
|
1455 |
|
|
zout.write(bytestring, 0, bytestring.length);
|
1456 |
|
|
zout.closeEntry(); //get ready for the next entry.
|
1457 |
|
|
|
1458 |
|
|
//zip up the related documents
|
1459 |
|
|
for(int i=0; i<reldocs.length; i++)
|
1460 |
|
|
{
|
1461 |
566
|
jones
|
//MetacatURL murl = new MetacatURL(((String)reldocs[i]));
|
1462 |
|
|
URL murl = new URL(((String)reldocs[i]));
|
1463 |
|
|
Hashtable qparams = util.parseQuery(murl.getQuery());
|
1464 |
|
|
if(murl.getProtocol().equals("metacat"))
|
1465 |
458
|
berkley
|
{
|
1466 |
|
|
//get the document from the database
|
1467 |
566
|
jones
|
//xmldoc = new DocumentImpl(conn, (String)murl.getHashParam("docid"));
|
1468 |
|
|
xmldoc = new DocumentImpl(conn, (String)qparams.get("docid"));
|
1469 |
458
|
berkley
|
bytestring = (xmldoc.toString()).getBytes();
|
1470 |
566
|
jones
|
zentry = new ZipEntry(qparams.get("docid") + ".xml");
|
1471 |
458
|
berkley
|
//create a new zip entry and write the file to the stream
|
1472 |
|
|
zentry.setSize(bytestring.length);
|
1473 |
|
|
zout.putNextEntry(zentry);
|
1474 |
|
|
zout.write(bytestring, 0, bytestring.length);
|
1475 |
|
|
zout.closeEntry(); //get ready for the next entry.
|
1476 |
|
|
}
|
1477 |
566
|
jones
|
else if(murl.getProtocol().equals("http"))
|
1478 |
458
|
berkley
|
{
|
1479 |
566
|
jones
|
//Hashtable murlParams = murl.getHashParams();
|
1480 |
|
|
if(qparams.containsKey("httpurl"))
|
1481 |
458
|
berkley
|
{//httpurl is the param name for an http url.
|
1482 |
566
|
jones
|
URL urlconn = new URL((String)qparams.get("httpurl"));
|
1483 |
473
|
berkley
|
//create a new url obj.
|
1484 |
458
|
berkley
|
BufferedReader htmldoc = new BufferedReader(
|
1485 |
|
|
new InputStreamReader(urlconn.openStream()));
|
1486 |
|
|
//get the data from the web server
|
1487 |
|
|
try
|
1488 |
|
|
{ //zip the document
|
1489 |
|
|
String line=null;
|
1490 |
566
|
jones
|
zentry = new ZipEntry((String)qparams.get("filename"));
|
1491 |
458
|
berkley
|
//get just the filename from the URL.
|
1492 |
|
|
zout.putNextEntry(zentry);
|
1493 |
|
|
//make a new entry in the zip file stream
|
1494 |
|
|
while((line = htmldoc.readLine()) != null)
|
1495 |
|
|
{
|
1496 |
|
|
bytestring = (line.toString()).getBytes();
|
1497 |
|
|
zout.write(bytestring, 0, bytestring.length);
|
1498 |
|
|
//write out the file line by line
|
1499 |
|
|
}
|
1500 |
|
|
zout.closeEntry(); //close the entry in the file
|
1501 |
|
|
}
|
1502 |
|
|
catch(Exception e)
|
1503 |
|
|
{
|
1504 |
675
|
berkley
|
System.out.println("error downloading html document "+
|
1505 |
|
|
"in metacatServlet.handleGetDataDocumentAction");
|
1506 |
458
|
berkley
|
}
|
1507 |
|
|
}
|
1508 |
|
|
}
|
1509 |
|
|
}
|
1510 |
|
|
zout.finish(); //terminate the zip file
|
1511 |
|
|
zout.close(); //close the stream.
|
1512 |
|
|
util.returnConnection(conn); //return the connection to the pool
|
1513 |
|
|
}
|
1514 |
|
|
catch(Exception e)
|
1515 |
|
|
{
|
1516 |
675
|
berkley
|
System.out.println("Error creating zip file from " +
|
1517 |
|
|
"MetacatServlet.handleGetDataDocumentAction: " +
|
1518 |
|
|
e.getMessage());
|
1519 |
458
|
berkley
|
e.printStackTrace(System.out);
|
1520 |
|
|
}
|
1521 |
|
|
|
1522 |
|
|
/*
|
1523 |
|
|
//////////old code using a shell script/////////////////////////////////
|
1524 |
|
|
|
1525 |
91
|
higgins
|
boolean error_flag = false;
|
1526 |
|
|
String error_message = "";
|
1527 |
|
|
// Get the document indicated
|
1528 |
|
|
String[] datadoc = (String[])params.get("datadoc");
|
1529 |
185
|
jones
|
// defaultdatapath = "C:\\Temp\\"; // for testing only!!!
|
1530 |
|
|
// executescript = "test.bat"; // for testing only!!!
|
1531 |
91
|
higgins
|
|
1532 |
|
|
// set content type and other response header fields first
|
1533 |
|
|
response.setContentType("application/octet-stream");
|
1534 |
185
|
jones
|
if (defaultdatapath!=null) {
|
1535 |
|
|
if(!defaultdatapath.endsWith(System.getProperty("file.separator"))) {
|
1536 |
|
|
defaultdatapath=defaultdatapath+System.getProperty("file.separator");
|
1537 |
91
|
higgins
|
}
|
1538 |
185
|
jones
|
System.out.println("Path= "+defaultdatapath+datadoc[0]);
|
1539 |
|
|
if (executescript!=null) {
|
1540 |
|
|
String command = null;
|
1541 |
|
|
File scriptfile = new File(executescript);
|
1542 |
|
|
if (scriptfile.exists()) {
|
1543 |
|
|
command=executescript+" "+datadoc[0]; // script includes path
|
1544 |
|
|
} else { // look in defaultdatapath
|
1545 |
|
|
// on Win98 one MUST include the .bat extender
|
1546 |
|
|
command = defaultdatapath+executescript+" "+datadoc[0];
|
1547 |
|
|
}
|
1548 |
91
|
higgins
|
System.out.println(command);
|
1549 |
|
|
try {
|
1550 |
|
|
Process proc = Runtime.getRuntime().exec(command);
|
1551 |
|
|
proc.waitFor();
|
1552 |
|
|
}
|
1553 |
|
|
catch (Exception eee) {
|
1554 |
|
|
System.out.println("Error running process!");
|
1555 |
|
|
error_flag = true;
|
1556 |
|
|
error_message = "Error running process!";}
|
1557 |
|
|
} // end executescript not null if
|
1558 |
|
|
File datafile = new File(defaultdatapath+datadoc[0]);
|
1559 |
|
|
try {
|
1560 |
|
|
FileInputStream fw = new FileInputStream(datafile);
|
1561 |
|
|
int x;
|
1562 |
185
|
jones
|
while ((x = fw.read())!=-1) {
|
1563 |
91
|
higgins
|
out.write(x); }
|
1564 |
185
|
jones
|
fw.close();
|
1565 |
|
|
} catch (Exception e) {
|
1566 |
91
|
higgins
|
System.out.println("Error in returning file\n"+e.getMessage());
|
1567 |
|
|
error_flag=true;
|
1568 |
185
|
jones
|
error_message = error_message+"\nError in returning file\n"+
|
1569 |
|
|
e.getMessage();
|
1570 |
|
|
}
|
1571 |
|
|
} // end defaultdatapath not null if
|
1572 |
458
|
berkley
|
*/
|
1573 |
91
|
higgins
|
}
|
1574 |
302
|
bojilova
|
|
1575 |
|
|
/**
|
1576 |
688
|
bojilova
|
* Handle "getaccesscontrol" action.
|
1577 |
|
|
* Read Access Control List from db connection in XML format
|
1578 |
|
|
*/
|
1579 |
|
|
private void handleGetAccessControlAction(PrintWriter out, Hashtable params,
|
1580 |
|
|
HttpServletResponse response,
|
1581 |
|
|
String username, String groupname) {
|
1582 |
|
|
|
1583 |
|
|
Connection conn = null;
|
1584 |
|
|
String docid = ((String[])params.get("docid"))[0];
|
1585 |
|
|
|
1586 |
|
|
try {
|
1587 |
|
|
|
1588 |
|
|
// get connection from the pool
|
1589 |
|
|
conn = util.getConnection();
|
1590 |
|
|
AccessControlList aclobj = new AccessControlList(conn);
|
1591 |
|
|
String acltext = aclobj.getACL(docid, username, groupname);
|
1592 |
|
|
out.println(acltext);
|
1593 |
|
|
|
1594 |
|
|
} catch (Exception e) {
|
1595 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
1596 |
|
|
out.println("<error>");
|
1597 |
|
|
out.println(e.getMessage());
|
1598 |
|
|
out.println("</error>");
|
1599 |
|
|
} finally {
|
1600 |
|
|
util.returnConnection(conn);
|
1601 |
|
|
}
|
1602 |
|
|
|
1603 |
|
|
}
|
1604 |
|
|
|
1605 |
|
|
/**
|
1606 |
|
|
* Handle "getdoctypes" action.
|
1607 |
302
|
bojilova
|
* Read all doctypes from db connection in XML format
|
1608 |
|
|
*/
|
1609 |
|
|
private void handleGetDoctypesAction(PrintWriter out, Hashtable params,
|
1610 |
|
|
HttpServletResponse response) {
|
1611 |
|
|
|
1612 |
309
|
bojilova
|
Connection conn = null;
|
1613 |
|
|
|
1614 |
302
|
bojilova
|
try {
|
1615 |
|
|
|
1616 |
309
|
bojilova
|
// get connection from the pool
|
1617 |
|
|
conn = util.getConnection();
|
1618 |
|
|
DBUtil dbutil = new DBUtil(conn);
|
1619 |
302
|
bojilova
|
String doctypes = dbutil.readDoctypes();
|
1620 |
|
|
out.println(doctypes);
|
1621 |
|
|
|
1622 |
|
|
} catch (Exception e) {
|
1623 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
1624 |
|
|
out.println("<error>");
|
1625 |
|
|
out.println(e.getMessage());
|
1626 |
|
|
out.println("</error>");
|
1627 |
309
|
bojilova
|
} finally {
|
1628 |
320
|
bojilova
|
util.returnConnection(conn);
|
1629 |
309
|
bojilova
|
}
|
1630 |
302
|
bojilova
|
|
1631 |
|
|
}
|
1632 |
|
|
|
1633 |
|
|
/**
|
1634 |
699
|
bojilova
|
* Handle the "getdtdschema" action.
|
1635 |
|
|
* Read DTD or Schema file for a given doctype from Metacat catalog system
|
1636 |
|
|
*/
|
1637 |
|
|
private void handleGetDTDSchemaAction(PrintWriter out, Hashtable params,
|
1638 |
|
|
HttpServletResponse response) {
|
1639 |
|
|
|
1640 |
|
|
Connection conn = null;
|
1641 |
|
|
String doctype = null;
|
1642 |
|
|
String[] doctypeArr = (String[])params.get("doctype");
|
1643 |
|
|
|
1644 |
|
|
// get only the first doctype specified in the list of doctypes
|
1645 |
|
|
// it could be done for all doctypes in that list
|
1646 |
|
|
if (doctypeArr != null) {
|
1647 |
|
|
doctype = ((String[])params.get("doctype"))[0];
|
1648 |
|
|
}
|
1649 |
|
|
|
1650 |
|
|
try {
|
1651 |
|
|
|
1652 |
|
|
// get connection from the pool
|
1653 |
|
|
conn = util.getConnection();
|
1654 |
|
|
DBUtil dbutil = new DBUtil(conn);
|
1655 |
|
|
String dtdschema = dbutil.readDTDSchema(doctype);
|
1656 |
|
|
out.println(dtdschema);
|
1657 |
|
|
|
1658 |
|
|
} catch (Exception e) {
|
1659 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
1660 |
|
|
out.println("<error>");
|
1661 |
|
|
out.println(e.getMessage());
|
1662 |
|
|
out.println("</error>");
|
1663 |
|
|
} finally {
|
1664 |
|
|
util.returnConnection(conn);
|
1665 |
|
|
}
|
1666 |
|
|
|
1667 |
|
|
}
|
1668 |
|
|
|
1669 |
|
|
/**
|
1670 |
688
|
bojilova
|
* Handle the "getdataguide" action.
|
1671 |
302
|
bojilova
|
* Read Data Guide for a given doctype from db connection in XML format
|
1672 |
|
|
*/
|
1673 |
|
|
private void handleGetDataGuideAction(PrintWriter out, Hashtable params,
|
1674 |
|
|
HttpServletResponse response) {
|
1675 |
|
|
|
1676 |
309
|
bojilova
|
Connection conn = null;
|
1677 |
316
|
bojilova
|
String doctype = null;
|
1678 |
|
|
String[] doctypeArr = (String[])params.get("doctype");
|
1679 |
309
|
bojilova
|
|
1680 |
316
|
bojilova
|
// get only the first doctype specified in the list of doctypes
|
1681 |
|
|
// it could be done for all doctypes in that list
|
1682 |
|
|
if (doctypeArr != null) {
|
1683 |
|
|
doctype = ((String[])params.get("doctype"))[0];
|
1684 |
|
|
}
|
1685 |
|
|
|
1686 |
302
|
bojilova
|
try {
|
1687 |
|
|
|
1688 |
309
|
bojilova
|
// get connection from the pool
|
1689 |
|
|
conn = util.getConnection();
|
1690 |
|
|
DBUtil dbutil = new DBUtil(conn);
|
1691 |
316
|
bojilova
|
String dataguide = dbutil.readDataGuide(doctype);
|
1692 |
302
|
bojilova
|
out.println(dataguide);
|
1693 |
|
|
|
1694 |
|
|
} catch (Exception e) {
|
1695 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
1696 |
|
|
out.println("<error>");
|
1697 |
|
|
out.println(e.getMessage());
|
1698 |
|
|
out.println("</error>");
|
1699 |
309
|
bojilova
|
} finally {
|
1700 |
320
|
bojilova
|
util.returnConnection(conn);
|
1701 |
309
|
bojilova
|
}
|
1702 |
302
|
bojilova
|
|
1703 |
|
|
}
|
1704 |
|
|
|
1705 |
725
|
bojilova
|
/**
|
1706 |
|
|
* Handle the "getprincipals" action.
|
1707 |
|
|
* Read all principals from authentication scheme in XML format
|
1708 |
|
|
*/
|
1709 |
|
|
private void handleGetPrincipalsAction(PrintWriter out, String user,
|
1710 |
|
|
String password) {
|
1711 |
|
|
|
1712 |
|
|
Connection conn = null;
|
1713 |
|
|
|
1714 |
|
|
try {
|
1715 |
|
|
|
1716 |
|
|
// get connection from the pool
|
1717 |
|
|
AuthSession auth = new AuthSession();
|
1718 |
|
|
String principals = auth.getPrincipals(user, password);
|
1719 |
|
|
out.println(principals);
|
1720 |
|
|
|
1721 |
|
|
} catch (Exception e) {
|
1722 |
|
|
out.println("<?xml version=\"1.0\"?>");
|
1723 |
|
|
out.println("<error>");
|
1724 |
|
|
out.println(e.getMessage());
|
1725 |
|
|
out.println("</error>");
|
1726 |
|
|
} finally {
|
1727 |
|
|
util.returnConnection(conn);
|
1728 |
|
|
}
|
1729 |
|
|
|
1730 |
|
|
}
|
1731 |
|
|
|
1732 |
46
|
jones
|
}
|