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/**
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* '$RCSfile$'
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* Purpose: A Class that loads eml-access.xml file containing ACL
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* for a metadata document into relational DB
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* Copyright: 2000 Regents of the University of California and the
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* National Center for Ecological Analysis and Synthesis
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* Authors: Jivka Bojilova
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* Release: @release@
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*
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* '$Author: tao $'
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* '$Date: 2003-02-26 17:29:47 -0800 (Wed, 26 Feb 2003) $'
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* '$Revision: 1426 $'
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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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* (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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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package edu.ucsb.nceas.metacat;
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import java.io.*;
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import java.sql.*;
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import java.util.Stack;
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import java.util.Vector;
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import java.util.Hashtable;
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import java.net.URL;
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import java.net.MalformedURLException;
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import org.xml.sax.Attributes;
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import org.xml.sax.InputSource;
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import org.xml.sax.ContentHandler;
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import org.xml.sax.EntityResolver;
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import org.xml.sax.ErrorHandler;
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import org.xml.sax.SAXException;
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import org.xml.sax.SAXParseException;
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import org.xml.sax.XMLReader;
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import org.xml.sax.helpers.XMLReaderFactory;
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import org.xml.sax.helpers.DefaultHandler;
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/**
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* A Class that loads eml-access.xml file containing ACL for a metadata
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* document into relational DB. It extends DefaultHandler class to handle
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* SAX parsing events when processing the XML stream.
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*/
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public class AccessControlList extends DefaultHandler
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implements AccessControlInterface
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{
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private static String sysdate = MetaCatUtil.dbAdapter.getDateTimeFunction();
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private static String isnull = MetaCatUtil.dbAdapter.getIsNULLFunction();
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private DBConnection connection;
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private String parserName;
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private Stack elementStack;
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private String server;
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private String sep;
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private boolean processingDTD;
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private String user;
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private String[] groups;
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private String aclid;
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private int rev;
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private String docname;
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private String doctype;
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private String systemid;
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private String docurl;
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private Vector resourceURL;
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private Vector resourceID;
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private Vector principal;
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private int permission;
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private String permType;
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private String permOrder;
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// private String publicAcc;
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private String beginTime;
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private String endTime;
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private int ticketCount;
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private int serverCode = 1;
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private Vector aclObjects = new Vector();
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private boolean instarttag = true;
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private String tagName = "";
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/**
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* Construct an instance of the AccessControlList class.
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* It is used by the permission check up from DBQuery or DocumentImpl
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* and from "getaccesscontrol" action
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*
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* @param conn the JDBC connection where acl info is get
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*/
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public AccessControlList(DBConnection conn) throws SQLException
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{
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this.connection = conn;
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}
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/**
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* Construct an instance of the AccessControlList class.
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* It parse acl file and loads acl data into db connection.
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*
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* @param conn the JDBC connection where acl data are loaded
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* @param aclid the Accession# of the document with the acl data
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* @param acl the acl file containing acl data
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* @param user the user connected to MetaCat servlet and owns the document
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* @param groups the groups to which user belongs
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* @param serverCode the serverid from xml_replication on which this document
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* resides.
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*/
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public AccessControlList(DBConnection conn, String aclid, //Reader acl,
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String user, String[] groups, int serverCode)
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throws SAXException, IOException, McdbException
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{
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String parserName = MetaCatUtil.getOption("saxparser");
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this.server = MetaCatUtil.getOption("server");
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this.sep = MetaCatUtil.getOption("accNumSeparator");
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this.connection = conn;
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this.parserName = parserName;
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this.processingDTD = false;
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this.elementStack = new Stack();
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this.user = user;
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this.groups = groups;
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this.aclid = aclid;
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this.resourceURL = new Vector();
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this.resourceID = new Vector();
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this.principal = new Vector();
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this.permission = 0;
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this.ticketCount = 0;
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// this.publicAcc = null;
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this.serverCode = serverCode;
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// read the access file from db connection
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DocumentImpl acldoc = new DocumentImpl(aclid);
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String acl = acldoc.toString();
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this.rev = acldoc.getRev();
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// Initialize the parse
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XMLReader parser = initializeParser();
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// parse the access file and write the info to xml_access
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parser.parse(new InputSource(new StringReader(acl)));
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}
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// NOT USED
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// /**
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// * Construct an instance of the AccessControlList class.
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// * It parses eml-access file and loads acl data into db connection.
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// * It is used from command line execution.
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// *
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// * @param conn the JDBC connection where acl data are loaded
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// * @param docid the Accession# of the document with the acl data
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// * @param aclfilename the name of acl file containing acl data
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// * @param user the user connected to MetaCat servlet and owns the document
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// * @param groups the groups to which user belongs
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// */
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// public AccessControlList( Connection conn, String aclid, String aclfilename,
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// String user, String[] groups )
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// throws SAXException, IOException, McdbException
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// {
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// this(conn, aclid, new FileReader(new File(aclfilename).toString()),
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// user, groups, 1);
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// }
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/* Set up the SAX parser for reading the XML serialized ACL */
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private XMLReader initializeParser() throws SAXException
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{
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XMLReader parser = null;
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// Get an instance of the parser
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parser = XMLReaderFactory.createXMLReader(parserName);
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// Turn off validation
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parser.setFeature("http://xml.org/sax/features/validation", true);
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// Set Handlers in the parser
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// Set the ContentHandler to this instance
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parser.setContentHandler((ContentHandler)this);
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// make a DBEntityResolver instance
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// Set the EntityReslover to DBEntityResolver instance
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EntityResolver eresolver = new DBEntityResolver(connection,this,null);
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parser.setEntityResolver((EntityResolver)eresolver);
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// Set the ErrorHandler to this instance
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parser.setErrorHandler((ErrorHandler)this);
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return parser;
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}
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/**
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* Callback method used by the SAX Parser when beginning of the document
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*/
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public void startDocument() throws SAXException
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{
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//delete all previously submitted permissions @ relations
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//this happens only on UPDATE of the access file
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try {
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this.aclObjects = getACLObjects(aclid);
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//delete all permissions for resources related to @aclid if any
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if ( aclid != null ) {
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deletePermissionsForRelatedResources(aclid);
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}
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} catch (SQLException sqle) {
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throw new SAXException(sqle);
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}
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}
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/**
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* Callback method used by the SAX Parser when the start tag of an
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* element is detected. Used in this context to parse and store
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* the acl information in class variables.
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*/
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public void startElement (String uri, String localName,
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String qName, Attributes atts)
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throws SAXException
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{
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instarttag = true;
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if(localName.equals("allow"))
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{
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tagName = "allow";
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}
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else if(localName.equals("deny"))
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{
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tagName = "deny";
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}
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BasicNode currentNode = new BasicNode(localName);
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if (atts != null) {
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int len = atts.getLength();
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for (int i = 0; i < len; i++) {
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currentNode.setAttribute(atts.getLocalName(i), atts.getValue(i));
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}
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}
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if ( currentNode.getTagName().equals("acl") ) {
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permOrder = currentNode.getAttribute("order");
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// publicAcc = currentNode.getAttribute("public");
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}
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elementStack.push(currentNode);
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}
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/**
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* Callback method used by the SAX Parser when the text sequences of an
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* xml stream are detected. Used in this context to parse and store
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* the acl information in class variables.
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*/
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public void characters(char ch[], int start, int length)
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throws SAXException
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{
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if(!instarttag)
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{
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return;
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}
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String inputString = new String(ch, start, length);
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inputString = inputString.trim();
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//System.out.println("==============inputString: " + inputString);
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BasicNode currentNode = (BasicNode)elementStack.peek();
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String currentTag = currentNode.getTagName();
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if (currentTag.equals("principal")) {
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principal.addElement(inputString);
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} else if (currentTag.equals("permission")) {
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if ( inputString.trim().toUpperCase().equals("READ") ) {
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permission = permission | READ;
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} else if ( inputString.trim().toUpperCase().equals("WRITE") ) {
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permission = permission | WRITE;
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} else if ( inputString.trim().toUpperCase().equals("CHANGEPERMISSION"))
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{
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permission = permission | CHMOD;
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} else if ( inputString.trim().toUpperCase().equals("ALL") ) {
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permission = permission | ALL;
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}/*else{
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throw new SAXException("Unknown permission type: " + inputString);
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}*/
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} else if ( currentTag.equals("startDate") && beginTime == null ) {
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beginTime = inputString.trim();
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} else if ( currentTag.equals("stopDate") && endTime == null) {
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endTime = inputString.trim();
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} else if (currentTag.equals("ticketCount") && ticketCount == 0 ) {
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try {
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ticketCount = (new Integer(inputString.trim())).intValue();
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} catch (NumberFormatException nfe) {
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throw new SAXException("Wrong integer format for:" + inputString);
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}
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}
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}
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/**
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* Callback method used by the SAX Parser when the end tag of an
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* element is detected. Used in this context to parse and store
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* the acl information in class variables.
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*/
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public void endElement (String uri, String localName, String qName)
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throws SAXException
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{
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instarttag = false;
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BasicNode leaving = (BasicNode)elementStack.pop();
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String leavingTagName = leaving.getTagName();
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if ( leavingTagName.equals("allow") ||
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leavingTagName.equals("deny") ) {
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if ( permission > 0 ) {
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// insert into db calculated permission for the list of principals
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try {
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// go through the objects in xml_relation about this acl doc
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for (int i=0; i < aclObjects.size(); i++) {
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// docid of the current object
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String docid = (String)aclObjects.elementAt(i);
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DocumentIdentifier docID = new DocumentIdentifier(docid);
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docid = docID.getIdentifier();
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insertPermissions(docid,leavingTagName);
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}
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// if acl is not in object list
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//should insert permission for aclid itself into database
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/*if (!aclObjects.contains(aclid))
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{
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DocumentIdentifier aclIdItself = new DocumentIdentifier(aclid);
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String aclIdString = aclIdItself.getIdentifier();
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insertPermissions(aclIdString,leavingTagName);
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}*/
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343
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} catch (SQLException sqle) {
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throw new SAXException(sqle);
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} catch (Exception e) {
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throw new SAXException(e);
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}
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}
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// reset the allow/deny permission
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principal = new Vector();
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permission = 0;
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beginTime = null;
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endTime = null;
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ticketCount = 0;
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}
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}
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361
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/**
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* SAX Handler that receives notification of DOCTYPE. Sets the DTD.
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* @param name name of the DTD
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* @param publicId Public Identifier of the DTD
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* @param systemId System Identifier of the DTD
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*/
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public void startDTD(String name, String publicId, String systemId)
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throws SAXException {
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docname = name;
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doctype = publicId;
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systemid = systemId;
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}
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375
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/**
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* SAX Handler that receives notification of the start of entities.
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* @param name name of the entity
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378
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*/
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public void startEntity(String name) throws SAXException {
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380
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if (name.equals("[dtd]")) {
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processingDTD = true;
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}
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383
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}
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384
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|
385
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/**
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* SAX Handler that receives notification of the end of entities.
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387
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* @param name name of the entity
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388
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*/
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389
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public void endEntity(String name) throws SAXException {
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390
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if (name.equals("[dtd]")) {
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391
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processingDTD = false;
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392
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}
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393
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}
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394
|
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395
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/**
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396
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* Get the document name.
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*/
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public String getDocname() {
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return docname;
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400
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}
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401
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|
402
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/**
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403
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* Get the document processing state.
|
404
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*/
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405
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public boolean processingDTD() {
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406
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return processingDTD;
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407
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}
|
408
|
|
409
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/* Get all objects associated with @aclid from db.*/
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private Vector getACLObjects(String aclid)
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411
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throws SQLException
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412
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{
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413
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Vector aclObjects = new Vector();
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414
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DBConnection conn = null;
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415
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int serialNumber = -1;
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PreparedStatement pstmt = null;
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try
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418
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{
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//get connection from DBConnectionPool
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conn=DBConnectionPool.getDBConnection("AccessControlList.getACLObject");
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serialNumber=conn.getCheckOutSerialNumber();
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422
|
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423
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// delete all acl records for resources related to @aclid if any
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pstmt = conn.prepareStatement(
|
425
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"SELECT object FROM xml_relation " +
|
426
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"WHERE subject = ? ");
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427
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pstmt.setString(1,aclid);
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pstmt.execute();
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ResultSet rs = pstmt.getResultSet();
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boolean hasRows = rs.next();
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431
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while (hasRows) {
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432
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aclObjects.addElement(rs.getString(1));
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hasRows = rs.next();
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434
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}//whil
|
435
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}
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436
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catch (SQLException e)
|
437
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{
|
438
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throw e;
|
439
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}
|
440
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finally
|
441
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{
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442
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try
|
443
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{
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444
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pstmt.close();
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445
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}
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446
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finally
|
447
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{
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448
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//retrun DBConnection
|
449
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DBConnectionPool.returnDBConnection(conn,serialNumber);
|
450
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}
|
451
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}
|
452
|
|
453
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return aclObjects;
|
454
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}
|
455
|
|
456
|
/* Delete from db all permission for resources related to @aclid if any.*/
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457
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private void deletePermissionsForRelatedResources(String aclid)
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458
|
throws SQLException
|
459
|
{
|
460
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//DBConnection conn = null;
|
461
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//int serialNumber = -1;
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462
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Statement stmt = null;
|
463
|
try
|
464
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{
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465
|
//check out DBConenction
|
466
|
//conn=DBConnectionPool.getDBConnection("AccessControlList.deltePerm");
|
467
|
//serialNumber=conn.getCheckOutSerialNumber();
|
468
|
// delete all acl records for resources related to @aclid if any
|
469
|
stmt = connection.createStatement();
|
470
|
// Increase DBConnection usage count
|
471
|
connection.increaseUsageCount(1);
|
472
|
stmt.execute("DELETE FROM xml_access WHERE accessfileid = '" + aclid
|
473
|
+ "'");
|
474
|
//increase usageCount!!!!!!
|
475
|
//conn.increaseUsageCount(1);
|
476
|
}
|
477
|
catch (SQLException e)
|
478
|
{
|
479
|
throw e;
|
480
|
}
|
481
|
finally
|
482
|
{
|
483
|
stmt.close();
|
484
|
//retrun DBConnection
|
485
|
//DBConnectionPool.returnDBConnection(conn,serialNumber);
|
486
|
}
|
487
|
}
|
488
|
|
489
|
/* Insert into db calculated permission for the list of principals
|
490
|
* The DBConnection it is use is class field. Because we want to keep rollback
|
491
|
* features and it need use same connection
|
492
|
*/
|
493
|
|
494
|
private void insertPermissions(String docid, String permType )
|
495
|
throws SQLException
|
496
|
{
|
497
|
PreparedStatement pstmt = null;
|
498
|
//DBConnection conn = null;
|
499
|
//int serialNumber = -1;
|
500
|
try {
|
501
|
//Check out DBConnection
|
502
|
//conn=DBConnectionPool.getDBConnection("AccessControlList.insertPerm");
|
503
|
//serialNumber=conn.getCheckOutSerialNumber();
|
504
|
|
505
|
pstmt = connection.prepareStatement(
|
506
|
"INSERT INTO xml_access " +
|
507
|
"(docid, principal_name, permission, perm_type, perm_order," +
|
508
|
"begin_time,end_time,ticket_count, accessfileid) VALUES " +
|
509
|
"(?,?,?,?,?,to_date(?,'mm/dd/yy'),to_date(?,'mm/dd/yy'),?,?)");
|
510
|
// Increase DBConnection usage count
|
511
|
connection.increaseUsageCount(1);
|
512
|
// Bind the values to the query
|
513
|
pstmt.setString(1, docid);
|
514
|
pstmt.setInt(3, permission);
|
515
|
pstmt.setString(4, permType);
|
516
|
pstmt.setString(5, permOrder);
|
517
|
pstmt.setString(6, beginTime);
|
518
|
pstmt.setString(7, endTime);
|
519
|
pstmt.setString(9, aclid);
|
520
|
if ( ticketCount > 0 ) {
|
521
|
pstmt.setString(8, "" + ticketCount);
|
522
|
} else {
|
523
|
pstmt.setString(8, null);
|
524
|
}
|
525
|
|
526
|
//incrase usagecount for DBConnection
|
527
|
//conn.increaseUsageCount(1);
|
528
|
String prName;
|
529
|
for ( int j = 0; j < principal.size(); j++ ) {
|
530
|
prName = (String)principal.elementAt(j);
|
531
|
pstmt.setString(2, prName);
|
532
|
pstmt.execute();
|
533
|
/*
|
534
|
// check if there are conflict with permission's order
|
535
|
String permOrderOpos = permOrder;
|
536
|
int perm = getPermissions(permission, prName, docid, permOrder);
|
537
|
if ( perm != 0 ) {
|
538
|
if ( permOrder.equals("allowFirst") ) {
|
539
|
permOrderOpos = "denyFirst";
|
540
|
} else if ( permOrder.equals("denyFirst") ) {
|
541
|
permOrderOpos = "allowFirst";
|
542
|
}
|
543
|
throw new SQLException("Permission(s) " + txtValue(perm) +
|
544
|
" for \"" + prName + "\" on document #" + docid +
|
545
|
" has/have been used with \"" + permOrderOpos + "\"");
|
546
|
}
|
547
|
*/
|
548
|
}
|
549
|
pstmt.close();
|
550
|
|
551
|
} catch (SQLException e) {
|
552
|
throw new
|
553
|
SQLException("AccessControlList.insertPermissions(): " + e.getMessage());
|
554
|
}
|
555
|
finally
|
556
|
{
|
557
|
pstmt.close();
|
558
|
//return the DBConnection
|
559
|
//DBConnectionPool.returnDBConnection(conn, serialNumber);
|
560
|
}
|
561
|
}
|
562
|
|
563
|
/* Get permissions with permission order different than @permOrder. */
|
564
|
private int getPermissions(int permission, String principal,
|
565
|
String docid, String permOrder)
|
566
|
throws SQLException
|
567
|
{
|
568
|
PreparedStatement pstmt = null;
|
569
|
DBConnection conn = null;
|
570
|
int serialNumber = -1;
|
571
|
try
|
572
|
{
|
573
|
//check out DBConnection
|
574
|
conn=DBConnectionPool.getDBConnection("AccessControlList.getPermissions");
|
575
|
serialNumber=conn.getCheckOutSerialNumber();
|
576
|
pstmt = conn.prepareStatement(
|
577
|
"SELECT permission FROM xml_access " +
|
578
|
"WHERE docid = ? " +
|
579
|
"AND principal_name = ? " +
|
580
|
"AND perm_order NOT = ?");
|
581
|
pstmt.setString(1, docid);
|
582
|
pstmt.setString(2, principal);
|
583
|
pstmt.setString(3, permOrder);
|
584
|
pstmt.execute();
|
585
|
ResultSet rs = pstmt.getResultSet();
|
586
|
boolean hasRow = rs.next();
|
587
|
int perm = 0;
|
588
|
while ( hasRow ) {
|
589
|
perm = rs.getInt(1);
|
590
|
perm = permission & perm;
|
591
|
if ( perm != 0 ) {
|
592
|
pstmt.close();
|
593
|
return perm;
|
594
|
}
|
595
|
hasRow = rs.next();
|
596
|
}
|
597
|
}//try
|
598
|
catch (SQLException e)
|
599
|
{
|
600
|
throw e;
|
601
|
}
|
602
|
finally
|
603
|
{
|
604
|
try
|
605
|
{
|
606
|
pstmt.close();
|
607
|
}
|
608
|
finally
|
609
|
{
|
610
|
DBConnectionPool.returnDBConnection(conn, serialNumber);
|
611
|
}
|
612
|
}
|
613
|
return 0;
|
614
|
}
|
615
|
|
616
|
/* Get the int value of READ, WRITE or ALL. */
|
617
|
public static int intValue ( String permission )
|
618
|
{
|
619
|
if ( permission.equalsIgnoreCase("READ") ) {
|
620
|
return READ;
|
621
|
} else if ( permission.equalsIgnoreCase("WRITE") ) {
|
622
|
return WRITE;
|
623
|
} else if ( permission.equalsIgnoreCase("ALL") ) {
|
624
|
return ALL;
|
625
|
}
|
626
|
|
627
|
return -1;
|
628
|
}
|
629
|
|
630
|
/* Get the text value of READ, WRITE or ALL. */
|
631
|
private String txtValue ( int permission )
|
632
|
{
|
633
|
StringBuffer txtPerm = new StringBuffer("\"");
|
634
|
if ( (permission & READ) != 0 ) {
|
635
|
txtPerm.append("read");
|
636
|
}
|
637
|
if ( (permission & WRITE) != 0 ) {
|
638
|
if ( txtPerm.length() > 0 ) txtPerm.append(",");
|
639
|
txtPerm.append("write");
|
640
|
}
|
641
|
if ( (permission & ALL) != 0 ) {
|
642
|
if ( txtPerm.length() > 0 ) txtPerm.append(",");
|
643
|
txtPerm.append("all");
|
644
|
}
|
645
|
|
646
|
return txtPerm.append("\"").toString();
|
647
|
}
|
648
|
|
649
|
/**
|
650
|
* Get Access Control List information for document from db connetion.
|
651
|
* User or Group should have permissions for reading
|
652
|
* access control information for a document specified by @docid.
|
653
|
* @param docid document identifier which acl info to get
|
654
|
* @param user name of user connected to Metacat system
|
655
|
* @param groups names of user's groups to which user belongs
|
656
|
*/
|
657
|
public String getACL(String docid, String user, String[] groups)
|
658
|
throws SQLException, Exception
|
659
|
{
|
660
|
StringBuffer output = new StringBuffer();
|
661
|
StringBuffer outTemp = new StringBuffer();
|
662
|
MetaCatUtil util = new MetaCatUtil();
|
663
|
String accDoctype = util.getOption("accessdoctype");
|
664
|
String server = util.getOption("server");
|
665
|
String docurl = "metacat://" + server + "/?docid=" + docid;
|
666
|
String systemID;
|
667
|
boolean isOwned = false;
|
668
|
boolean hasPermission = false;
|
669
|
String publicAcc;
|
670
|
|
671
|
String acfid = "";
|
672
|
String acfid_prev = "";
|
673
|
String principal;
|
674
|
Vector principalArr = new Vector();
|
675
|
int permission;
|
676
|
int perm_prev = -1;
|
677
|
String permType;
|
678
|
String permOrder = "";
|
679
|
String permOrder_prev = "";
|
680
|
String beginTime = "";
|
681
|
String begin_prev = "";
|
682
|
String endTime = "";
|
683
|
String end_prev = "";
|
684
|
int ticketCount = -1;
|
685
|
int ticket_prev = -1;
|
686
|
DBConnection conn = null;
|
687
|
int serialNumber = -1;
|
688
|
PreparedStatement pstmt = null;
|
689
|
try {
|
690
|
|
691
|
//check out DBConnection
|
692
|
conn=DBConnectionPool.getDBConnection("AccessControlList.getACL");
|
693
|
serialNumber=conn.getCheckOutSerialNumber();
|
694
|
|
695
|
isOwned = isOwned(docid, user);
|
696
|
systemID = getSystemID((String)MetaCatUtil.
|
697
|
getOptionList(accDoctype).elementAt(0));
|
698
|
publicAcc = getPublicAccess(docid);
|
699
|
|
700
|
output.append("<?xml version=\"1.0\"?>\n");
|
701
|
output.append("<!DOCTYPE acl PUBLIC \"" + accDoctype + "\" \"" +
|
702
|
systemID + "\">\n");
|
703
|
output.append("<acl authSystem=\"\">\n");
|
704
|
|
705
|
|
706
|
pstmt = conn.prepareStatement(
|
707
|
"SELECT distinct accessfileid, principal_name, permission, " +
|
708
|
"perm_type, perm_order, to_char(begin_time,'mm/dd/yyyy'), " +
|
709
|
"to_char(end_time,'mm/dd/yyyy'), ticket_count " +
|
710
|
"FROM xml_access WHERE docid = ? " +
|
711
|
"ORDER BY accessfileid, perm_order, perm_type, permission");
|
712
|
// Bind the values to the query
|
713
|
pstmt.setString(1, docid);
|
714
|
pstmt.execute();
|
715
|
ResultSet rs = pstmt.getResultSet();
|
716
|
boolean hasRows = rs.next();
|
717
|
while (hasRows) {
|
718
|
|
719
|
acfid = rs.getString(1);
|
720
|
principal = rs.getString(2);
|
721
|
permission = rs.getInt(3);
|
722
|
permType = rs.getString(4);
|
723
|
permOrder = rs.getString(5);
|
724
|
beginTime = rs.getString(6);
|
725
|
endTime = rs.getString(7);
|
726
|
ticketCount = rs.getInt(8);
|
727
|
|
728
|
// if @docid is not owned by @user, only ACL info from that
|
729
|
// access files to which @user/@groups has "read" permission
|
730
|
// is extracted
|
731
|
if ( !isOwned ) {
|
732
|
if ( !acfid.equals(acfid_prev) ) {
|
733
|
acfid_prev = acfid;
|
734
|
//hasPermission = this.hasPermission("READ",user,groups,acfid);
|
735
|
PermissionController controller = new PermissionController(acfid);
|
736
|
hasPermission = controller.hasPermission(user,groups,
|
737
|
AccessControlInterface.READSTRING);
|
738
|
}
|
739
|
if ( !hasPermission ) {
|
740
|
rs.next();
|
741
|
continue;
|
742
|
}
|
743
|
}
|
744
|
|
745
|
// open <resource> tag
|
746
|
if ( !permOrder.equals(permOrder_prev) ) {
|
747
|
// close </resource> tag if any was opened
|
748
|
output.append(outTemp.toString());
|
749
|
outTemp = new StringBuffer();
|
750
|
if ( !permOrder_prev.equals("") ) {
|
751
|
output.append(" </resource>\n");
|
752
|
}
|
753
|
output.append(" <resource order=\"" + permOrder + "\" public=\"" +
|
754
|
publicAcc + "\">\n");
|
755
|
output.append(" <resourceIdentifier>" + docurl +
|
756
|
"</resourceIdentifier>\n");
|
757
|
permOrder_prev = permOrder;
|
758
|
}
|
759
|
|
760
|
// close </allow> or </deny> tag then open new one
|
761
|
if ( permission != perm_prev ||
|
762
|
(endTime == null) && (end_prev != null) ||
|
763
|
(beginTime == null) && (begin_prev != null) ||
|
764
|
endTime != null && !endTime.equals(end_prev) ||
|
765
|
beginTime != null && !beginTime.equals(begin_prev) ||
|
766
|
ticketCount != ticket_prev ) {
|
767
|
output.append(outTemp.toString());
|
768
|
outTemp = new StringBuffer();
|
769
|
principalArr.removeAllElements();
|
770
|
output.append(" <" + permType + ">\n");
|
771
|
}
|
772
|
|
773
|
// put all principals here for the same
|
774
|
// permission, duration and ticket_count
|
775
|
if ( !principalArr.contains(principal) ) {
|
776
|
principalArr.addElement(principal);
|
777
|
output.append(" <principal>" + principal + "</principal>\n");
|
778
|
}
|
779
|
|
780
|
// prepare <permission> tags, <duration> and <ticketCount>
|
781
|
// if any to put within <allow> (<deny>) by next cicle
|
782
|
if ( permission != perm_prev ||
|
783
|
(endTime == null) && (end_prev != null) ||
|
784
|
(beginTime == null) && (begin_prev != null) ||
|
785
|
endTime != null && !endTime.equals(end_prev) ||
|
786
|
beginTime != null && !beginTime.equals(begin_prev) ||
|
787
|
ticketCount != ticket_prev ) {
|
788
|
if ( (permission & READ) != 0 ) {
|
789
|
outTemp.append(" <permission>read</permission>\n");
|
790
|
}
|
791
|
if ( (permission & WRITE) != 0 ) {
|
792
|
outTemp.append(" <permission>write</permission>\n");
|
793
|
}
|
794
|
if ( (permission & ALL) != 0 ) {
|
795
|
outTemp.append(" <permission>all</permission>\n");
|
796
|
}
|
797
|
if ( (beginTime != null) || (endTime != null) ) {
|
798
|
outTemp.append(" <duration>" + beginTime + " " + endTime +
|
799
|
"</duration>\n");
|
800
|
}
|
801
|
if ( ticketCount > 0 ) {
|
802
|
outTemp.append(" <ticketCount>" + ticketCount +
|
803
|
"</ticketCount>\n");
|
804
|
}
|
805
|
outTemp.append(" </" + permType + ">\n");
|
806
|
perm_prev = permission;
|
807
|
ticket_prev = ticketCount;
|
808
|
begin_prev = beginTime;
|
809
|
end_prev = endTime;
|
810
|
}
|
811
|
|
812
|
hasRows = rs.next();
|
813
|
}
|
814
|
|
815
|
// close <allow> or <deny> if anything left in outTemp var
|
816
|
output.append(outTemp.toString());
|
817
|
|
818
|
// If there are no any acl info for @docid accessible by @user/@group,
|
819
|
// extract only the following information
|
820
|
if ( permOrder.equals("") ) {
|
821
|
output.append(" <resource public=\"" + publicAcc + "\">\n");
|
822
|
output.append(" <resourceIdentifier>" + docurl +
|
823
|
"</resourceIdentifier>\n");
|
824
|
}
|
825
|
|
826
|
// always close them
|
827
|
output.append(" </resource>\n");
|
828
|
output.append("</acl>\n");
|
829
|
|
830
|
pstmt.close();
|
831
|
|
832
|
return output.toString();
|
833
|
|
834
|
} catch (SQLException e) {
|
835
|
throw new
|
836
|
SQLException("AccessControlList.getACL(). " + e.getMessage());
|
837
|
}
|
838
|
finally
|
839
|
{
|
840
|
try
|
841
|
{
|
842
|
pstmt.close();
|
843
|
}
|
844
|
finally
|
845
|
{
|
846
|
DBConnectionPool.returnDBConnection(conn, serialNumber);
|
847
|
}
|
848
|
}
|
849
|
}
|
850
|
|
851
|
/* Check if @user is owner of @docid from db conn. */
|
852
|
private boolean isOwned(String docid, String user) throws SQLException {
|
853
|
|
854
|
PreparedStatement pstmt = null;
|
855
|
DBConnection conn = null;
|
856
|
int serialNumber = -1;
|
857
|
try
|
858
|
{
|
859
|
//check out DBConnection
|
860
|
conn=DBConnectionPool.getDBConnection("AccessControlList.isOwned");
|
861
|
serialNumber=conn.getCheckOutSerialNumber();
|
862
|
pstmt = conn.prepareStatement("SELECT 'x' FROM xml_documents " +
|
863
|
"WHERE docid = ? " +
|
864
|
"AND user_owner = ?");
|
865
|
pstmt.setString(1, docid);
|
866
|
pstmt.setString(2, user);
|
867
|
pstmt.execute();
|
868
|
ResultSet rs = pstmt.getResultSet();
|
869
|
boolean hasRow = rs.next();
|
870
|
return hasRow;
|
871
|
}
|
872
|
finally
|
873
|
{
|
874
|
try
|
875
|
{
|
876
|
pstmt.close();
|
877
|
}
|
878
|
finally
|
879
|
{
|
880
|
DBConnectionPool.returnDBConnection(conn, serialNumber);
|
881
|
}
|
882
|
}
|
883
|
}
|
884
|
|
885
|
/* Get the flag for public "read" access for @docid from db conn. */
|
886
|
private String getPublicAccess(String docid) throws SQLException {
|
887
|
|
888
|
int publicAcc = 0;
|
889
|
PreparedStatement pstmt = null;
|
890
|
DBConnection conn = null;
|
891
|
int serialNumber = -1;
|
892
|
try
|
893
|
{
|
894
|
//check out DBConnection
|
895
|
conn=DBConnectionPool.getDBConnection("AccessControlList.getPublicAcces");
|
896
|
serialNumber=conn.getCheckOutSerialNumber();
|
897
|
pstmt = conn.prepareStatement("SELECT public_access FROM xml_documents " +
|
898
|
"WHERE docid = ?");
|
899
|
pstmt.setString(1, docid);
|
900
|
pstmt.execute();
|
901
|
ResultSet rs = pstmt.getResultSet();
|
902
|
boolean hasRow = rs.next();
|
903
|
if ( hasRow ) {
|
904
|
publicAcc = rs.getInt(1);
|
905
|
}
|
906
|
|
907
|
return (publicAcc == 1) ? "yes" : "no";
|
908
|
}
|
909
|
finally
|
910
|
{
|
911
|
try
|
912
|
{
|
913
|
pstmt.close();
|
914
|
}
|
915
|
finally
|
916
|
{
|
917
|
DBConnectionPool.returnDBConnection(conn, serialNumber);
|
918
|
}
|
919
|
}
|
920
|
}
|
921
|
|
922
|
/* Get SystemID for @publicID from Metacat DB Catalog. */
|
923
|
private String getSystemID(String publicID) throws SQLException {
|
924
|
|
925
|
String systemID = "";
|
926
|
PreparedStatement pstmt = null;
|
927
|
DBConnection conn = null;
|
928
|
int serialNumber = -1;
|
929
|
|
930
|
try
|
931
|
{
|
932
|
//check out DBConnection
|
933
|
conn=DBConnectionPool.getDBConnection("AccessControlList.getSystemID");
|
934
|
serialNumber=conn.getCheckOutSerialNumber();
|
935
|
|
936
|
pstmt = conn.prepareStatement("SELECT system_id FROM xml_catalog " +
|
937
|
"WHERE entry_type = 'DTD' " +
|
938
|
"AND public_id = ?");
|
939
|
pstmt.setString(1, publicID);
|
940
|
pstmt.execute();
|
941
|
ResultSet rs = pstmt.getResultSet();
|
942
|
boolean hasRow = rs.next();
|
943
|
if ( hasRow ) {
|
944
|
systemID = rs.getString(1);
|
945
|
}
|
946
|
|
947
|
return systemID;
|
948
|
}//try
|
949
|
finally
|
950
|
{
|
951
|
|
952
|
try
|
953
|
{
|
954
|
pstmt.close();
|
955
|
}
|
956
|
finally
|
957
|
{
|
958
|
DBConnectionPool.returnDBConnection(conn, serialNumber);
|
959
|
}
|
960
|
}//finally
|
961
|
}
|
962
|
|
963
|
}
|