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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: 2002-03-18 17:02:45 -0800 (Mon, 18 Mar 2002) $'
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* '$Revision: 975 $'
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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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private static final int CHMOD = 1;
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private static final int WRITE = 2;
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private static final int READ = 4;
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private static final int ALL = 7;
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private static final String ALLOWFIRST="allowFirst";
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private static final String DENYFIRST="denyFirst";
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private static final String ALLOW="allow";
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private static final String DENY="deny";
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private static final String PUBLIC="public";
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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 Connection conn;
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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(Connection conn) throws SQLException
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{
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this.conn = 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(Connection 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.conn = 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(conn, 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(conn,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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//should insert permission for aclid itself into database
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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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342
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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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/**
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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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/**
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375
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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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*/
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public void startEntity(String name) throws SAXException {
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if (name.equals("[dtd]")) {
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processingDTD = true;
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}
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382
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}
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383
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|
384
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/**
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385
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* SAX Handler that receives notification of the end of entities.
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386
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* @param name name of the entity
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387
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*/
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388
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public void endEntity(String name) throws SAXException {
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389
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if (name.equals("[dtd]")) {
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processingDTD = false;
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}
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}
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393
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394
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/**
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395
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* Get the document name.
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396
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*/
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public String getDocname() {
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return docname;
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399
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}
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400
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|
401
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/**
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402
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* Get the document processing state.
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403
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*/
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404
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public boolean processingDTD() {
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return processingDTD;
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}
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407
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|
408
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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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throws SQLException
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{
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412
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Vector aclObjects = new Vector();
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413
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// delete all acl records for resources related to @aclid if any
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PreparedStatement pstmt = conn.prepareStatement(
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"SELECT object FROM xml_relation " +
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"WHERE subject = ? ");
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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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while (hasRows) {
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aclObjects.addElement(rs.getString(1));
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hasRows = rs.next();
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}
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425
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426
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pstmt.close();
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427
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return aclObjects;
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429
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}
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430
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|
431
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/* Delete from db all permission for resources related to @aclid if any.*/
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432
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private void deletePermissionsForRelatedResources(String aclid)
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433
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throws SQLException
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{
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435
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// delete all acl records for resources related to @aclid if any
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436
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Statement stmt = conn.createStatement();
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437
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stmt.execute("DELETE FROM xml_access WHERE accessfileid = '" + aclid + "'");
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stmt.close();
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}
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440
|
|
441
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/* Insert into db calculated permission for the list of principals */
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442
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private void insertPermissions(String docid, String permType )
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443
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throws SQLException
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444
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{
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445
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PreparedStatement pstmt;
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446
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try {
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447
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pstmt = conn.prepareStatement(
|
448
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"INSERT INTO xml_access " +
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449
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"(docid, principal_name, permission, perm_type, perm_order," +
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450
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"begin_time,end_time,ticket_count, accessfileid) VALUES " +
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451
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"(?,?,?,?,?,to_date(?,'mm/dd/yy'),to_date(?,'mm/dd/yy'),?,?)");
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452
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// Bind the values to the query
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453
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pstmt.setString(1, docid);
|
454
|
pstmt.setInt(3, permission);
|
455
|
pstmt.setString(4, permType);
|
456
|
pstmt.setString(5, permOrder);
|
457
|
pstmt.setString(6, beginTime);
|
458
|
pstmt.setString(7, endTime);
|
459
|
pstmt.setString(9, aclid);
|
460
|
if ( ticketCount > 0 ) {
|
461
|
pstmt.setString(8, "" + ticketCount);
|
462
|
} else {
|
463
|
pstmt.setString(8, null);
|
464
|
}
|
465
|
|
466
|
String prName;
|
467
|
for ( int j = 0; j < principal.size(); j++ ) {
|
468
|
prName = (String)principal.elementAt(j);
|
469
|
pstmt.setString(2, prName);
|
470
|
pstmt.execute();
|
471
|
/*
|
472
|
// check if there are conflict with permission's order
|
473
|
String permOrderOpos = permOrder;
|
474
|
int perm = getPermissions(permission, prName, docid, permOrder);
|
475
|
if ( perm != 0 ) {
|
476
|
if ( permOrder.equals("allowFirst") ) {
|
477
|
permOrderOpos = "denyFirst";
|
478
|
} else if ( permOrder.equals("denyFirst") ) {
|
479
|
permOrderOpos = "allowFirst";
|
480
|
}
|
481
|
throw new SQLException("Permission(s) " + txtValue(perm) +
|
482
|
" for \"" + prName + "\" on document #" + docid +
|
483
|
" has/have been used with \"" + permOrderOpos + "\"");
|
484
|
}
|
485
|
*/
|
486
|
}
|
487
|
pstmt.close();
|
488
|
|
489
|
} catch (SQLException e) {
|
490
|
throw new
|
491
|
SQLException("AccessControlList.insertPermissions(): " + e.getMessage());
|
492
|
}
|
493
|
}
|
494
|
|
495
|
/* Get permissions with permission order different than @permOrder. */
|
496
|
private int getPermissions(int permission, String principal,
|
497
|
String docid, String permOrder)
|
498
|
throws SQLException
|
499
|
{
|
500
|
PreparedStatement pstmt;
|
501
|
pstmt = conn.prepareStatement(
|
502
|
"SELECT permission FROM xml_access " +
|
503
|
"WHERE docid = ? " +
|
504
|
"AND principal_name = ? " +
|
505
|
"AND perm_order NOT = ?");
|
506
|
pstmt.setString(1, docid);
|
507
|
pstmt.setString(2, principal);
|
508
|
pstmt.setString(3, permOrder);
|
509
|
pstmt.execute();
|
510
|
ResultSet rs = pstmt.getResultSet();
|
511
|
boolean hasRow = rs.next();
|
512
|
int perm = 0;
|
513
|
while ( hasRow ) {
|
514
|
perm = rs.getInt(1);
|
515
|
perm = permission & perm;
|
516
|
if ( perm != 0 ) {
|
517
|
pstmt.close();
|
518
|
return perm;
|
519
|
}
|
520
|
hasRow = rs.next();
|
521
|
}
|
522
|
pstmt.close();
|
523
|
return 0;
|
524
|
}
|
525
|
|
526
|
/* Get the int value of READ, WRITE or ALL. */
|
527
|
private int intValue ( String permission )
|
528
|
{
|
529
|
if ( permission.equals("READ") ) {
|
530
|
return READ;
|
531
|
} else if ( permission.equals("WRITE") ) {
|
532
|
return WRITE;
|
533
|
} else if ( permission.equals("ALL") ) {
|
534
|
return ALL;
|
535
|
}
|
536
|
|
537
|
return -1;
|
538
|
}
|
539
|
|
540
|
/* Get the text value of READ, WRITE or ALL. */
|
541
|
private String txtValue ( int permission )
|
542
|
{
|
543
|
StringBuffer txtPerm = new StringBuffer("\"");
|
544
|
if ( (permission & READ) != 0 ) {
|
545
|
txtPerm.append("read");
|
546
|
}
|
547
|
if ( (permission & WRITE) != 0 ) {
|
548
|
if ( txtPerm.length() > 0 ) txtPerm.append(",");
|
549
|
txtPerm.append("write");
|
550
|
}
|
551
|
if ( (permission & ALL) != 0 ) {
|
552
|
if ( txtPerm.length() > 0 ) txtPerm.append(",");
|
553
|
txtPerm.append("all");
|
554
|
}
|
555
|
|
556
|
return txtPerm.append("\"").toString();
|
557
|
}
|
558
|
|
559
|
|
560
|
/**
|
561
|
* Check if a document id is a access document. Access document need user
|
562
|
* has "all" permission to access it.
|
563
|
* @param docId, the document id need to be checked
|
564
|
*/
|
565
|
private boolean isAccessDocument(String docId) throws SQLException
|
566
|
{
|
567
|
//detele the rev number if docid contains it
|
568
|
docId=MetaCatUtil.getDocIdFromString(docId);
|
569
|
PreparedStatement pStmt=null;
|
570
|
try
|
571
|
{
|
572
|
pStmt = conn.prepareStatement("select 'x' from xml_access where " +
|
573
|
"accessfileid like '" + docId + "'");
|
574
|
pStmt.execute();
|
575
|
ResultSet rs = pStmt.getResultSet();
|
576
|
boolean hasRow = rs.next();
|
577
|
pStmt.close();
|
578
|
if(hasRow)
|
579
|
{
|
580
|
return true;
|
581
|
}
|
582
|
}
|
583
|
catch(SQLException e)
|
584
|
{
|
585
|
pStmt.close();
|
586
|
throw new SQLException("AccessControlList.hasPermission():2 " +
|
587
|
"Error checking ownership for " + principal +
|
588
|
" on document #" + docId + ". " + e.getMessage());
|
589
|
}
|
590
|
return false;
|
591
|
}//isAccessDocument
|
592
|
|
593
|
/**
|
594
|
* To create a part of query: "docid like '" +str1+ "', " +"docid like '"
|
595
|
* +str2+"'" ... We need to check user, group and public together for the
|
596
|
* permission. So we need the principal in an array and according the array
|
597
|
* to create a part of query which will be used in other methods
|
598
|
* @param principals, a string array storing the username, groups name and
|
599
|
* public.
|
600
|
*/
|
601
|
private String partQueryAboutDocId( String [] principals)
|
602
|
{
|
603
|
String partQuery="";
|
604
|
int lengthOfArray=principals.length;
|
605
|
|
606
|
for (int i=0;i<(lengthOfArray-1);i++)
|
607
|
{
|
608
|
partQuery=partQuery+"docid like '"+principals[i]+"',";
|
609
|
}
|
610
|
|
611
|
//the last one dosen't has "'"
|
612
|
partQuery=partQuery+"docid like '"+principals[(lengthOfArray-1)]+"'";
|
613
|
return partQuery;
|
614
|
|
615
|
}
|
616
|
|
617
|
/**
|
618
|
* Check if a stirng array contains a given documents' owner
|
619
|
* @param principals, a string array storing the username, groups name and
|
620
|
* public.
|
621
|
* @param docid, the id of given documents
|
622
|
*/
|
623
|
private boolean containDocumentOwner( String [] principals, String docId)
|
624
|
throws SQLException
|
625
|
{
|
626
|
int lengthOfArray=principals.length;
|
627
|
boolean hasRow;
|
628
|
PreparedStatement pStmt=null;
|
629
|
try
|
630
|
{
|
631
|
pStmt = conn.prepareStatement(
|
632
|
"SELECT 'x' FROM xml_documents " +
|
633
|
"WHERE docid = ? AND user_owner = ?");
|
634
|
//check every element in the string array too see if it conatains
|
635
|
//the owner of document
|
636
|
for (int i=0; i<lengthOfArray; i++)
|
637
|
{
|
638
|
|
639
|
// Bind the values to the query
|
640
|
pStmt.setString(1, docId);
|
641
|
pStmt.setString(2, principals[i]);
|
642
|
|
643
|
pStmt.execute();
|
644
|
ResultSet rs = pStmt.getResultSet();
|
645
|
hasRow = rs.next();
|
646
|
if (hasRow)
|
647
|
{
|
648
|
pStmt.close();
|
649
|
return true;
|
650
|
}//if
|
651
|
|
652
|
}//for
|
653
|
}//try
|
654
|
catch (SQLException e)
|
655
|
{
|
656
|
pStmt.close();
|
657
|
|
658
|
throw new
|
659
|
SQLException("AccessControlList.hasPermission(). " +
|
660
|
"Error checking ownership for " + principals[0] +
|
661
|
" on document #" + docId + ". " + e.getMessage());
|
662
|
}//catch
|
663
|
|
664
|
|
665
|
pStmt.close();
|
666
|
|
667
|
return false;
|
668
|
}//containDocumentOwner
|
669
|
|
670
|
/**
|
671
|
* Check if the permission order for user at that documents is allowFirst
|
672
|
* @param principals, list of names of principals to check for
|
673
|
* @param docid, document identifier to check for
|
674
|
*/
|
675
|
private boolean isAllowFirst(String [] principals, String docId)
|
676
|
throws SQLException, Exception
|
677
|
{
|
678
|
int lengthOfArray=principals.length;
|
679
|
boolean hasRow;
|
680
|
|
681
|
//select permission order from database
|
682
|
PreparedStatement pStmt = conn.prepareStatement(
|
683
|
"SELECT perm_order FROM xml_access " +
|
684
|
"WHERE principal_name= ? AND docid = ?");
|
685
|
|
686
|
//check every name in the array
|
687
|
for (int i=0; i<lengthOfArray;i++)
|
688
|
{
|
689
|
//bind value
|
690
|
pStmt.setString(1, principals[i]);//user name
|
691
|
pStmt.setString(2, docId);//docid
|
692
|
|
693
|
pStmt.execute();
|
694
|
ResultSet rs = pStmt.getResultSet();
|
695
|
hasRow=rs.next();
|
696
|
if (hasRow)
|
697
|
{
|
698
|
//get the permission order from data base
|
699
|
String permissionOrder=rs.getString(1);
|
700
|
//if the permission order is "allowFirst
|
701
|
if (permissionOrder.equalsIgnoreCase(ALLOWFIRST))
|
702
|
{
|
703
|
pStmt.close();
|
704
|
return true;
|
705
|
}
|
706
|
else
|
707
|
{
|
708
|
pStmt.close();
|
709
|
return false;
|
710
|
}
|
711
|
}//if
|
712
|
}//for
|
713
|
|
714
|
//if reach here, means there is no permssion record for given names and
|
715
|
//docid. So throw a exception.
|
716
|
pStmt.close();
|
717
|
throw new Exception("There is no permission record for user"+principals[0]+
|
718
|
"at document "+docId);
|
719
|
|
720
|
}//isAllowFirst
|
721
|
|
722
|
/**
|
723
|
* Check if the users array has allow rules for given users, docid and
|
724
|
* permission.
|
725
|
* If it has permission rule and ticket count is greater than 0, the ticket
|
726
|
* number will decrease one for every allow rule
|
727
|
* @param principals, list of names of principals to check for
|
728
|
* @param docid, document identifier to check for
|
729
|
* @param permission, the permssion need to check
|
730
|
*/
|
731
|
private boolean hasAllowRule(String [] principals, String docId,
|
732
|
String permission)
|
733
|
throws SQLException, Exception
|
734
|
{
|
735
|
int lengthOfArray=principals.length;
|
736
|
boolean allow=false;//initial value is no allow rule
|
737
|
ResultSet rs;
|
738
|
PreparedStatement pStmt;
|
739
|
int permissionValue=intValue(permission);
|
740
|
int permissionValueInTable;
|
741
|
int ticketCount;
|
742
|
|
743
|
//This sql statement will select entry with
|
744
|
//begin_time<=currentTime<=end_time in xml_access table
|
745
|
//If begin_time or end_time is null in table, isnull(begin_time, sysdate)
|
746
|
//function will assign begin_time=sysdate
|
747
|
pStmt = conn.prepareStatement(
|
748
|
"SELECT permission, ticket_count " +
|
749
|
"FROM xml_access " +
|
750
|
"WHERE docid = ? " +
|
751
|
"AND principal_name = ? " +
|
752
|
"AND perm_type = ? " +
|
753
|
"AND " + sysdate +
|
754
|
" BETWEEN " + isnull + "(begin_time," + sysdate + ") " +
|
755
|
"AND " + isnull + "(end_time," + sysdate + ")");
|
756
|
//bind docid, perm_type
|
757
|
pStmt.setString(1, docId);
|
758
|
pStmt.setString(3, ALLOW);
|
759
|
|
760
|
//bind every elenment in user name array
|
761
|
for (int i=0;i<lengthOfArray; i++)
|
762
|
{
|
763
|
pStmt.setString(2, principals[i]);
|
764
|
pStmt.execute();
|
765
|
rs=pStmt.getResultSet();
|
766
|
while (rs.next())//check every entry for one user
|
767
|
{
|
768
|
permissionValueInTable=rs.getInt(1);
|
769
|
ticketCount=rs.getInt(2);
|
770
|
|
771
|
//permission is ok and ticketcount geat than 0 or ticket is null,
|
772
|
//the user have a permission to access the file
|
773
|
if ((( permissionValueInTable & permissionValue )== permissionValue )
|
774
|
&& (rs.wasNull()||ticketCount > 0))
|
775
|
{
|
776
|
//ticket count should minus one
|
777
|
//ticketCount isnot null and greater than 0, order is allowfirst
|
778
|
if (!rs.wasNull() && ticketCount>0 && isAllowFirst(principals,docId))
|
779
|
{
|
780
|
decreaseNumberOfAccess(permissionValueInTable, principals[i],
|
781
|
docId, ALLOW, ALLOWFIRST);
|
782
|
}
|
783
|
//ticketCount isnot null and greater than 0, order is not allowfirst
|
784
|
if (!rs.wasNull() &&ticketCount>0 && !isAllowFirst(principals,docId))
|
785
|
{
|
786
|
decreaseNumberOfAccess(permissionValueInTable, principals[i],
|
787
|
docId, ALLOW, DENYFIRST);
|
788
|
}
|
789
|
|
790
|
allow=true;//has allow rule entry
|
791
|
}//if
|
792
|
}//while
|
793
|
}//for
|
794
|
pStmt.close();
|
795
|
return allow;
|
796
|
}//hasAllowRule
|
797
|
|
798
|
/**
|
799
|
* Check if the users array has allow rules for given users, docid and
|
800
|
* permission.
|
801
|
* If it has permission rule and ticket count is greater than 0, the ticket
|
802
|
* number will decrease one
|
803
|
* @param principals, list of names of principals to check for
|
804
|
* @param docid, document identifier to check for
|
805
|
* @param permission, the permssion need to check
|
806
|
*/
|
807
|
private boolean hasAllowRuleBackup(String [] principals, String docId,
|
808
|
String permission)
|
809
|
throws SQLException, Exception
|
810
|
{
|
811
|
int lengthOfArray=principals.length;
|
812
|
ResultSet rs;
|
813
|
PreparedStatement pStmt;
|
814
|
int permissionValue=intValue(permission);
|
815
|
int permissionValueInTable;
|
816
|
int ticketCount;
|
817
|
|
818
|
//This sql statement will select entry with
|
819
|
//begin_time<=currentTime<=end_time in xml_access table
|
820
|
//If begin_time or end_time is null in table, isnull(begin_time, sysdate)
|
821
|
//function will assign begin_time=sysdate
|
822
|
pStmt = conn.prepareStatement(
|
823
|
"SELECT permission, ticket_count " +
|
824
|
"FROM xml_access " +
|
825
|
"WHERE docid = ? " +
|
826
|
"AND principal_name = ? " +
|
827
|
"AND perm_type = ? " +
|
828
|
"AND " + sysdate +
|
829
|
" BETWEEN " + isnull + "(begin_time," + sysdate + ") " +
|
830
|
"AND " + isnull + "(end_time," + sysdate + ")");
|
831
|
//bind docid, perm_type
|
832
|
pStmt.setString(1, docId);
|
833
|
pStmt.setString(3, ALLOW);
|
834
|
|
835
|
//bind every elenment in user name array
|
836
|
for (int i=0;i<lengthOfArray; i++)
|
837
|
{
|
838
|
pStmt.setString(2, principals[i]);
|
839
|
pStmt.execute();
|
840
|
rs=pStmt.getResultSet();
|
841
|
while (rs.next())//check every entry for one user
|
842
|
{
|
843
|
permissionValueInTable=rs.getInt(1);
|
844
|
ticketCount=rs.getInt(2);
|
845
|
|
846
|
//permission is ok and ticketcount geat than 0 or ticket is null,
|
847
|
//the user have a permission to access the file
|
848
|
if ((( permissionValueInTable & permissionValue )== permissionValue )
|
849
|
&& (rs.wasNull()||ticketCount > 0))
|
850
|
{
|
851
|
//ticket count should minus one
|
852
|
//ticketCount isnot null and greater than 0, order is allowfirst
|
853
|
if (!rs.wasNull() && ticketCount>0 && isAllowFirst(principals,docId))
|
854
|
{
|
855
|
decreaseNumberOfAccess(permissionValueInTable, principals[i],
|
856
|
docId, ALLOW, ALLOWFIRST);
|
857
|
}
|
858
|
//ticketCount isnot null and greater than 0, order is not allowfirst
|
859
|
if (!rs.wasNull() &&ticketCount>0 && !isAllowFirst(principals,docId))
|
860
|
{
|
861
|
decreaseNumberOfAccess(permissionValueInTable, principals[i],
|
862
|
docId, ALLOW, DENYFIRST);
|
863
|
}
|
864
|
pStmt.close();
|
865
|
return true;
|
866
|
}//if
|
867
|
}//while
|
868
|
}//for
|
869
|
pStmt.close();
|
870
|
return false;//no allow rule
|
871
|
}//hasAllowRule
|
872
|
|
873
|
/**
|
874
|
* Check if the users array has explicit deny rules for given users, docid
|
875
|
* and permission. That means the perm_type is deny and current time is
|
876
|
* less than end_time and greater than begin time, or no time limit.
|
877
|
* @param principals, list of names of principals to check for
|
878
|
* @param docid, document identifier to check for
|
879
|
* @param permission, the permssion need to check
|
880
|
*/
|
881
|
private boolean hasExplicitDenyRule(String [] principals, String docId,
|
882
|
String permission)
|
883
|
throws SQLException
|
884
|
{
|
885
|
int lengthOfArray=principals.length;
|
886
|
ResultSet rs;
|
887
|
PreparedStatement pStmt;
|
888
|
int permissionValue=intValue(permission);
|
889
|
int permissionValueInTable;
|
890
|
|
891
|
|
892
|
//This sql statement will select entry with
|
893
|
//begin_time<=currentTime<=end_time in xml_access table
|
894
|
//If begin_time or end_time is null in table, isnull(begin_time, sysdate)
|
895
|
//function will assign begin_time=sysdate
|
896
|
pStmt = conn.prepareStatement(
|
897
|
"SELECT permission " +
|
898
|
"FROM xml_access " +
|
899
|
"WHERE docid = ? " +
|
900
|
"AND principal_name = ? " +
|
901
|
"AND perm_type = ? " +
|
902
|
"AND " + sysdate +
|
903
|
" BETWEEN " + isnull + "(begin_time," + sysdate + ") " +
|
904
|
"AND " + isnull + "(end_time," + sysdate + ")");
|
905
|
//bind docid, perm_type
|
906
|
pStmt.setString(1, docId);
|
907
|
pStmt.setString(3, DENY);
|
908
|
|
909
|
//bind every elenment in user name array
|
910
|
for (int i=0;i<lengthOfArray; i++)
|
911
|
{
|
912
|
pStmt.setString(2, principals[i]);
|
913
|
pStmt.execute();
|
914
|
rs=pStmt.getResultSet();
|
915
|
while (rs.next())//check every entry for one user
|
916
|
{
|
917
|
permissionValueInTable=rs.getInt(1);
|
918
|
|
919
|
//permission is ok the user doesn't have permission to access the file
|
920
|
if (( permissionValueInTable & permissionValue )== permissionValue )
|
921
|
|
922
|
{
|
923
|
pStmt.close();
|
924
|
return true;
|
925
|
}//if
|
926
|
}//while
|
927
|
}//for
|
928
|
pStmt.close();
|
929
|
return false;//no deny rule
|
930
|
}//hasExplicitDenyRule
|
931
|
|
932
|
/**
|
933
|
* Check if the users array has implicit deny rules for given users, docid
|
934
|
* and permission. That means the though perm_type is "allow" but current
|
935
|
* time is less than begin_time or greater than end time, or ticket count
|
936
|
* is 0.
|
937
|
* @param principals, list of names of principals to check for
|
938
|
* @param docid, document identifier to check for
|
939
|
* @param permission, the permssion need to check
|
940
|
*/
|
941
|
private boolean hasImplicitDenyRule(String [] principals, String docId,
|
942
|
String permission)
|
943
|
throws SQLException
|
944
|
{
|
945
|
int lengthOfArray=principals.length;
|
946
|
ResultSet rs;
|
947
|
PreparedStatement pStmt;
|
948
|
int permissionValue=intValue(permission);
|
949
|
int permissionValueInTable;
|
950
|
|
951
|
|
952
|
//This sql statement will select entry with perm_type =allow and
|
953
|
//currentTime is less than begin_time or greater than end time
|
954
|
//in xml_access table. This is an implicit deny rule (allow is out of date)
|
955
|
pStmt = conn.prepareStatement(
|
956
|
"SELECT permission " +
|
957
|
"FROM xml_access " +
|
958
|
"WHERE docid = ? " +
|
959
|
"AND principal_name = ? " +
|
960
|
"AND perm_type = ? " +
|
961
|
"AND " + sysdate +
|
962
|
" < " + isnull + "(begin_time," + sysdate + ") " +
|
963
|
"OR " + sysdate + " > "+ isnull + "(end_time," + sysdate + ")");
|
964
|
//bind docid, perm_type
|
965
|
pStmt.setString(1, docId);
|
966
|
pStmt.setString(3, ALLOW);//It is allow
|
967
|
|
968
|
//bind every elenment in user name array
|
969
|
for (int i=0;i<lengthOfArray; i++)
|
970
|
{
|
971
|
pStmt.setString(2, principals[i]);
|
972
|
pStmt.execute();
|
973
|
rs=pStmt.getResultSet();
|
974
|
while (rs.next())//check every entry for one user
|
975
|
{
|
976
|
permissionValueInTable=rs.getInt(1);
|
977
|
|
978
|
//permission is ok the user doesn't have permission to access the file
|
979
|
if (( permissionValueInTable & permissionValue )== permissionValue )
|
980
|
|
981
|
{
|
982
|
pStmt.close();
|
983
|
//has a implicit deny rule: allow is out of date
|
984
|
return true;
|
985
|
}//if
|
986
|
}//while
|
987
|
}//for
|
988
|
pStmt.close();
|
989
|
|
990
|
//Now, there is no implicit deny rule which is allow is out of date
|
991
|
//another implicit deny rule need to be check: allow is out of ticketCount
|
992
|
//ticketCount=0
|
993
|
pStmt = conn.prepareStatement(
|
994
|
"SELECT permission " +
|
995
|
"FROM xml_access " +
|
996
|
"WHERE docid = ? " +
|
997
|
"AND principal_name = ? " +
|
998
|
"AND perm_type = ? " +
|
999
|
"AND ticket_count = ?");
|
1000
|
//bind docid, perm_type, ticket_count
|
1001
|
pStmt.setString(1, docId);
|
1002
|
pStmt.setString(3, ALLOW);//It is allow!
|
1003
|
pStmt.setInt(4,0);
|
1004
|
|
1005
|
//bind every elenment in user name array
|
1006
|
for (int i=0;i<lengthOfArray; i++)
|
1007
|
{
|
1008
|
pStmt.setString(2, principals[i]);
|
1009
|
pStmt.execute();
|
1010
|
rs=pStmt.getResultSet();
|
1011
|
while (rs.next())//check every entry for one user
|
1012
|
{
|
1013
|
permissionValueInTable=rs.getInt(1);
|
1014
|
|
1015
|
//permission is ok the user doesn't have permission to access the file
|
1016
|
if (( permissionValueInTable & permissionValue )== permissionValue )
|
1017
|
|
1018
|
{
|
1019
|
|
1020
|
pStmt.close();
|
1021
|
//has a implicit deny rule: allow is out of ticketCount
|
1022
|
return true;
|
1023
|
}//if
|
1024
|
}//while
|
1025
|
}//for
|
1026
|
|
1027
|
pStmt.close();
|
1028
|
return false;//no implicit deny rule
|
1029
|
}//hasImplicitDenyRule
|
1030
|
|
1031
|
/**
|
1032
|
* Creat a users pakages to check permssion rule, user itself, public and
|
1033
|
* the gourps the user belong will be include in this package
|
1034
|
* @param user, the name of user
|
1035
|
* @param groups, the string array of the groups that user belong to
|
1036
|
*/
|
1037
|
private String [] createUsersPackage(String user, String [] groups)
|
1038
|
{
|
1039
|
String [] usersPackage=null;
|
1040
|
int lengthOfPackage;
|
1041
|
|
1042
|
if (groups!=null)
|
1043
|
{
|
1044
|
//if gouprs is not null and user is not public, we should create a array
|
1045
|
//to store the groups and user and public.
|
1046
|
//So the length of userPackage is the length of group plus two
|
1047
|
if (!user.equalsIgnoreCase(PUBLIC))
|
1048
|
{
|
1049
|
lengthOfPackage=(groups.length)+2;
|
1050
|
usersPackage=new String [lengthOfPackage];
|
1051
|
//the first two elements is user self and public
|
1052
|
usersPackage[0]=user;
|
1053
|
usersPackage[1]=PUBLIC;
|
1054
|
//put groups element from index 0 to lengthOfPackage-3 into userPackage
|
1055
|
//from index 2 to lengthOfPackage-1
|
1056
|
for (int i=2; i<lengthOfPackage; i++)
|
1057
|
{
|
1058
|
usersPackage[i]=groups[i-2];
|
1059
|
} //for
|
1060
|
}//if user!=public
|
1061
|
else//use=public
|
1062
|
{
|
1063
|
lengthOfPackage=(groups.length)+1;
|
1064
|
usersPackage=new String [lengthOfPackage];
|
1065
|
//the first lements is public
|
1066
|
usersPackage[0]=PUBLIC;
|
1067
|
//put groups element from index 0 to lengthOfPackage-2 into userPackage
|
1068
|
//from index 1 to lengthOfPackage-1
|
1069
|
for (int i=1; i<lengthOfPackage; i++)
|
1070
|
{
|
1071
|
usersPackage[i]=groups[i-1];
|
1072
|
} //for
|
1073
|
}//else user=public
|
1074
|
|
1075
|
}//if groups!=null
|
1076
|
else
|
1077
|
{
|
1078
|
//because no groups, the userPackage only need two elements
|
1079
|
//one is for user, the other is for public
|
1080
|
if (!user.equalsIgnoreCase(PUBLIC))
|
1081
|
{
|
1082
|
lengthOfPackage=2;
|
1083
|
usersPackage=new String [lengthOfPackage];
|
1084
|
usersPackage[0]=user;
|
1085
|
usersPackage[1]=PUBLIC;
|
1086
|
}//if user!=public
|
1087
|
else //user==public
|
1088
|
{
|
1089
|
//only put public into array
|
1090
|
lengthOfPackage=1;
|
1091
|
usersPackage=new String [lengthOfPackage];
|
1092
|
usersPackage[0]=PUBLIC;
|
1093
|
}
|
1094
|
}//else groups==null
|
1095
|
return usersPackage;
|
1096
|
}//createUsersPackage
|
1097
|
|
1098
|
/**
|
1099
|
* This method will return a data set id for given access id.
|
1100
|
* @param accessDocId, the accessDocId which need to be found data set id
|
1101
|
*/
|
1102
|
private String getDataSetId(String accessDocId)
|
1103
|
throws SQLException
|
1104
|
{
|
1105
|
String dataSetId=null;
|
1106
|
PreparedStatement pStmt;
|
1107
|
ResultSet rs=null;
|
1108
|
String query="SELECT docId from xml_relation where subject = ? or "
|
1109
|
+"object = ?";
|
1110
|
|
1111
|
pStmt=conn.prepareStatement(query);
|
1112
|
//bind the value to query
|
1113
|
pStmt.setString(1, accessDocId);
|
1114
|
pStmt.setString(2, accessDocId);
|
1115
|
//execute the query
|
1116
|
pStmt.execute();
|
1117
|
rs=pStmt.getResultSet();
|
1118
|
//process the result
|
1119
|
if (rs.next()) //There are some records for the data set id for access id
|
1120
|
{
|
1121
|
dataSetId=rs.getString(1);
|
1122
|
}
|
1123
|
else //No data set id for the given access id in xml_relation table
|
1124
|
{
|
1125
|
dataSetId=null;
|
1126
|
}
|
1127
|
|
1128
|
|
1129
|
pStmt.close();
|
1130
|
return dataSetId;
|
1131
|
}//getDataPackageId()
|
1132
|
|
1133
|
/**
|
1134
|
* Check from db connection if at least one of the list of @principals
|
1135
|
* has @permission on @docid.
|
1136
|
* @param permission permission type to check for
|
1137
|
* @param principals list of names of principals to check for @permission
|
1138
|
* @param docid document identifier to check on
|
1139
|
*/
|
1140
|
public boolean hasPermission(String permission, String user,
|
1141
|
String[] groups, String docId )
|
1142
|
throws SQLException, Exception
|
1143
|
{
|
1144
|
//detele the rev number if docid contains it
|
1145
|
docId=MetaCatUtil.getDocIdFromString(docId);
|
1146
|
boolean hasPermission=false;
|
1147
|
String [] userPackage=null;
|
1148
|
//for the commnad line invocation
|
1149
|
if ((user==null) && (groups==null || groups.length==0))
|
1150
|
{
|
1151
|
return true;
|
1152
|
}
|
1153
|
|
1154
|
//create a userpackage including user, public and group member
|
1155
|
userPackage=createUsersPackage(user, groups);
|
1156
|
|
1157
|
//if the requested document is access documents and requested permission
|
1158
|
//is "write", the user should have "all" right
|
1159
|
if (isAccessDocument(docId) && (intValue(permission)==WRITE))
|
1160
|
{
|
1161
|
hasPermission = hasPermission(userPackage,docId, "ALL");
|
1162
|
}//if
|
1163
|
else //in other situation, just check the request permission
|
1164
|
{
|
1165
|
|
1166
|
// Check for @permission on @docid for @user and/or @groups
|
1167
|
hasPermission = hasPermission(userPackage,docId, permission);
|
1168
|
|
1169
|
}//else
|
1170
|
|
1171
|
return hasPermission;
|
1172
|
}
|
1173
|
|
1174
|
/**
|
1175
|
* Check from db connection if the users in String array @principals has
|
1176
|
* @permission on @docid*
|
1177
|
* @param principals, names in userPakcage need to check for @permission
|
1178
|
* @param docid, document identifier to check on
|
1179
|
* @param permission, permission (write or all...) to check for
|
1180
|
*/
|
1181
|
private boolean hasPermission(String [] principals, String docId,
|
1182
|
String permission)
|
1183
|
throws SQLException
|
1184
|
{
|
1185
|
try
|
1186
|
{
|
1187
|
//first, if there is a docid owner in user package, return true
|
1188
|
//because doc owner has all permssion
|
1189
|
if (containDocumentOwner(principals, docId))
|
1190
|
{
|
1191
|
|
1192
|
return true;
|
1193
|
}
|
1194
|
|
1195
|
//If there is no owner in user package, checking the table
|
1196
|
//check perm_order
|
1197
|
if (isAllowFirst(principals, docId))
|
1198
|
{
|
1199
|
|
1200
|
if (hasExplicitDenyRule(principals, docId, permission)||
|
1201
|
hasImplicitDenyRule(principals, docId, permission))
|
1202
|
{
|
1203
|
//if it is allowfirst and has deny rule(either explicit or implicit)
|
1204
|
//deny access
|
1205
|
return false;
|
1206
|
}//if
|
1207
|
else if ( hasAllowRule(principals, docId, permission))
|
1208
|
{
|
1209
|
//if it is allowfirst and hasn't deny rule and has allow rule
|
1210
|
//allow access
|
1211
|
return true;
|
1212
|
}//else if
|
1213
|
else
|
1214
|
{
|
1215
|
//other situation deny access
|
1216
|
return false;
|
1217
|
}//else
|
1218
|
}//if isAllowFirst
|
1219
|
else //denyFirst
|
1220
|
{
|
1221
|
if (hasAllowRule(principals, docId, permission))
|
1222
|
{
|
1223
|
//if it is denyFirst and has allow rule, allow access
|
1224
|
return true;
|
1225
|
}
|
1226
|
else
|
1227
|
{
|
1228
|
//if it is denyfirst but no allow rule, deny access
|
1229
|
return false;
|
1230
|
}
|
1231
|
}//else denyfirst
|
1232
|
}//try
|
1233
|
catch (Exception e)
|
1234
|
{
|
1235
|
MetaCatUtil.debugMessage("There is a exception in hasPermission method: "
|
1236
|
+e.getMessage());
|
1237
|
}
|
1238
|
|
1239
|
return false;
|
1240
|
}//hasPermission
|
1241
|
|
1242
|
private boolean hasValidDenyEntry(String persmission, String principal,
|
1243
|
String docId)
|
1244
|
throws SQLException
|
1245
|
{
|
1246
|
//detele the rev number if docid contains it
|
1247
|
docId=MetaCatUtil.getDocIdFromString(docId);
|
1248
|
PreparedStatement pStmt;
|
1249
|
String permissionType;
|
1250
|
int accessValue;
|
1251
|
|
1252
|
|
1253
|
try
|
1254
|
{
|
1255
|
pStmt = conn.prepareStatement("select perm_type, permission, begin_time"
|
1256
|
+ ", end_time from xml_access where " +
|
1257
|
"docid like '" + docId + "' and "
|
1258
|
+ "principal_name like '"+principal+"'");
|
1259
|
pStmt.execute();
|
1260
|
ResultSet rs = pStmt.getResultSet();
|
1261
|
boolean hasRow = rs.next();
|
1262
|
pStmt.close();
|
1263
|
if(hasRow)
|
1264
|
{
|
1265
|
return true;
|
1266
|
}
|
1267
|
}
|
1268
|
catch(SQLException e)
|
1269
|
{
|
1270
|
throw new SQLException("AccessControlList.hasPermission():2 " +
|
1271
|
"Error checking ownership for " + principal +
|
1272
|
" on document #" + docId + ". " + e.getMessage());
|
1273
|
}
|
1274
|
return false;
|
1275
|
}
|
1276
|
/* Decrease the number of access to @docid for @principal in db. */
|
1277
|
private void decreaseNumberOfAccess(int permission, String principal,
|
1278
|
String docid, String permType,
|
1279
|
String permOrder)
|
1280
|
throws SQLException
|
1281
|
{
|
1282
|
PreparedStatement pstmt;
|
1283
|
pstmt = conn.prepareStatement(
|
1284
|
"UPDATE xml_access SET ticket_count = ticket_count - 1 " +
|
1285
|
"WHERE docid = ? " +
|
1286
|
"AND principal_name = ? " +
|
1287
|
"AND permission = ? " +
|
1288
|
"AND perm_type = ? " +
|
1289
|
"AND perm_order = ? " +
|
1290
|
"AND " + sysdate +
|
1291
|
" BETWEEN " + isnull + "(begin_time," + sysdate + ") " +
|
1292
|
"AND " + isnull + "(end_time," + sysdate + ")");
|
1293
|
// Bind the values to the query
|
1294
|
pstmt.setString(1, docid);
|
1295
|
pstmt.setString(2, principal);
|
1296
|
pstmt.setInt(3, permission);
|
1297
|
pstmt.setString(4, permType);
|
1298
|
pstmt.setString(5, permOrder);
|
1299
|
|
1300
|
pstmt.execute();
|
1301
|
pstmt.close();
|
1302
|
}
|
1303
|
|
1304
|
|
1305
|
/**
|
1306
|
* Get Access Control List information for document from db connetion.
|
1307
|
* User or Group should have permissions for reading
|
1308
|
* access control information for a document specified by @docid.
|
1309
|
* @param docid document identifier which acl info to get
|
1310
|
* @param user name of user connected to Metacat system
|
1311
|
* @param groups names of user's groups to which user belongs
|
1312
|
*/
|
1313
|
public String getACL(String docid, String user, String[] groups)
|
1314
|
throws SQLException, Exception
|
1315
|
{
|
1316
|
StringBuffer output = new StringBuffer();
|
1317
|
StringBuffer outTemp = new StringBuffer();
|
1318
|
MetaCatUtil util = new MetaCatUtil();
|
1319
|
String accDoctype = util.getOption("accessdoctype");
|
1320
|
String server = util.getOption("server");
|
1321
|
String docurl = "metacat://" + server + "/?docid=" + docid;
|
1322
|
String systemID;
|
1323
|
boolean isOwned = false;
|
1324
|
boolean hasPermission = false;
|
1325
|
String publicAcc;
|
1326
|
|
1327
|
String acfid = "";
|
1328
|
String acfid_prev = "";
|
1329
|
String principal;
|
1330
|
Vector principalArr = new Vector();
|
1331
|
int permission;
|
1332
|
int perm_prev = -1;
|
1333
|
String permType;
|
1334
|
String permOrder = "";
|
1335
|
String permOrder_prev = "";
|
1336
|
String beginTime = "";
|
1337
|
String begin_prev = "";
|
1338
|
String endTime = "";
|
1339
|
String end_prev = "";
|
1340
|
int ticketCount = -1;
|
1341
|
int ticket_prev = -1;
|
1342
|
|
1343
|
try {
|
1344
|
|
1345
|
isOwned = isOwned(docid, user);
|
1346
|
systemID = getSystemID((String)MetaCatUtil.
|
1347
|
getOptionList(accDoctype).elementAt(0));
|
1348
|
publicAcc = getPublicAccess(docid);
|
1349
|
|
1350
|
output.append("<?xml version=\"1.0\"?>\n");
|
1351
|
output.append("<!DOCTYPE acl PUBLIC \"" + accDoctype + "\" \"" +
|
1352
|
systemID + "\">\n");
|
1353
|
output.append("<acl authSystem=\"\">\n");
|
1354
|
|
1355
|
PreparedStatement pstmt;
|
1356
|
pstmt = conn.prepareStatement(
|
1357
|
"SELECT distinct accessfileid, principal_name, permission, " +
|
1358
|
"perm_type, perm_order, to_char(begin_time,'mm/dd/yyyy'), " +
|
1359
|
"to_char(end_time,'mm/dd/yyyy'), ticket_count " +
|
1360
|
"FROM xml_access WHERE docid = ? " +
|
1361
|
"ORDER BY accessfileid, perm_order, perm_type, permission");
|
1362
|
// Bind the values to the query
|
1363
|
pstmt.setString(1, docid);
|
1364
|
pstmt.execute();
|
1365
|
ResultSet rs = pstmt.getResultSet();
|
1366
|
boolean hasRows = rs.next();
|
1367
|
while (hasRows) {
|
1368
|
|
1369
|
acfid = rs.getString(1);
|
1370
|
principal = rs.getString(2);
|
1371
|
permission = rs.getInt(3);
|
1372
|
permType = rs.getString(4);
|
1373
|
permOrder = rs.getString(5);
|
1374
|
beginTime = rs.getString(6);
|
1375
|
endTime = rs.getString(7);
|
1376
|
ticketCount = rs.getInt(8);
|
1377
|
|
1378
|
// if @docid is not owned by @user, only ACL info from that
|
1379
|
// access files to which @user/@groups has "read" permission
|
1380
|
// is extracted
|
1381
|
if ( !isOwned ) {
|
1382
|
if ( !acfid.equals(acfid_prev) ) {
|
1383
|
acfid_prev = acfid;
|
1384
|
hasPermission = this.hasPermission("READ",user,groups,acfid);
|
1385
|
}
|
1386
|
if ( !hasPermission ) {
|
1387
|
rs.next();
|
1388
|
continue;
|
1389
|
}
|
1390
|
}
|
1391
|
|
1392
|
// open <resource> tag
|
1393
|
if ( !permOrder.equals(permOrder_prev) ) {
|
1394
|
// close </resource> tag if any was opened
|
1395
|
output.append(outTemp.toString());
|
1396
|
outTemp = new StringBuffer();
|
1397
|
if ( !permOrder_prev.equals("") ) {
|
1398
|
output.append(" </resource>\n");
|
1399
|
}
|
1400
|
output.append(" <resource order=\"" + permOrder + "\" public=\"" +
|
1401
|
publicAcc + "\">\n");
|
1402
|
output.append(" <resourceIdentifier>" + docurl +
|
1403
|
"</resourceIdentifier>\n");
|
1404
|
permOrder_prev = permOrder;
|
1405
|
}
|
1406
|
|
1407
|
// close </allow> or </deny> tag then open new one
|
1408
|
if ( permission != perm_prev ||
|
1409
|
(endTime == null) && (end_prev != null) ||
|
1410
|
(beginTime == null) && (begin_prev != null) ||
|
1411
|
endTime != null && !endTime.equals(end_prev) ||
|
1412
|
beginTime != null && !beginTime.equals(begin_prev) ||
|
1413
|
ticketCount != ticket_prev ) {
|
1414
|
output.append(outTemp.toString());
|
1415
|
outTemp = new StringBuffer();
|
1416
|
principalArr.removeAllElements();
|
1417
|
output.append(" <" + permType + ">\n");
|
1418
|
}
|
1419
|
|
1420
|
// put all principals here for the same
|
1421
|
// permission, duration and ticket_count
|
1422
|
if ( !principalArr.contains(principal) ) {
|
1423
|
principalArr.addElement(principal);
|
1424
|
output.append(" <principal>" + principal + "</principal>\n");
|
1425
|
}
|
1426
|
|
1427
|
// prepare <permission> tags, <duration> and <ticketCount>
|
1428
|
// if any to put within <allow> (<deny>) by next cicle
|
1429
|
if ( permission != perm_prev ||
|
1430
|
(endTime == null) && (end_prev != null) ||
|
1431
|
(beginTime == null) && (begin_prev != null) ||
|
1432
|
endTime != null && !endTime.equals(end_prev) ||
|
1433
|
beginTime != null && !beginTime.equals(begin_prev) ||
|
1434
|
ticketCount != ticket_prev ) {
|
1435
|
if ( (permission & READ) != 0 ) {
|
1436
|
outTemp.append(" <permission>read</permission>\n");
|
1437
|
}
|
1438
|
if ( (permission & WRITE) != 0 ) {
|
1439
|
outTemp.append(" <permission>write</permission>\n");
|
1440
|
}
|
1441
|
if ( (permission & ALL) != 0 ) {
|
1442
|
outTemp.append(" <permission>all</permission>\n");
|
1443
|
}
|
1444
|
if ( (beginTime != null) || (endTime != null) ) {
|
1445
|
outTemp.append(" <duration>" + beginTime + " " + endTime +
|
1446
|
"</duration>\n");
|
1447
|
}
|
1448
|
if ( ticketCount > 0 ) {
|
1449
|
outTemp.append(" <ticketCount>" + ticketCount +
|
1450
|
"</ticketCount>\n");
|
1451
|
}
|
1452
|
outTemp.append(" </" + permType + ">\n");
|
1453
|
perm_prev = permission;
|
1454
|
ticket_prev = ticketCount;
|
1455
|
begin_prev = beginTime;
|
1456
|
end_prev = endTime;
|
1457
|
}
|
1458
|
|
1459
|
hasRows = rs.next();
|
1460
|
}
|
1461
|
|
1462
|
// close <allow> or <deny> if anything left in outTemp var
|
1463
|
output.append(outTemp.toString());
|
1464
|
|
1465
|
// If there are no any acl info for @docid accessible by @user/@group,
|
1466
|
// extract only the following information
|
1467
|
if ( permOrder.equals("") ) {
|
1468
|
output.append(" <resource public=\"" + publicAcc + "\">\n");
|
1469
|
output.append(" <resourceIdentifier>" + docurl +
|
1470
|
"</resourceIdentifier>\n");
|
1471
|
}
|
1472
|
|
1473
|
// always close them
|
1474
|
output.append(" </resource>\n");
|
1475
|
output.append("</acl>\n");
|
1476
|
|
1477
|
pstmt.close();
|
1478
|
|
1479
|
return output.toString();
|
1480
|
|
1481
|
} catch (SQLException e) {
|
1482
|
throw new
|
1483
|
SQLException("AccessControlList.getACL(). " + e.getMessage());
|
1484
|
}
|
1485
|
}
|
1486
|
|
1487
|
/* Check if @user is owner of @docid from db conn. */
|
1488
|
private boolean isOwned(String docid, String user) throws SQLException {
|
1489
|
|
1490
|
PreparedStatement pstmt;
|
1491
|
pstmt = conn.prepareStatement("SELECT 'x' FROM xml_documents " +
|
1492
|
"WHERE docid = ? " +
|
1493
|
"AND user_owner = ?");
|
1494
|
pstmt.setString(1, docid);
|
1495
|
pstmt.setString(2, user);
|
1496
|
pstmt.execute();
|
1497
|
ResultSet rs = pstmt.getResultSet();
|
1498
|
boolean hasRow = rs.next();
|
1499
|
|
1500
|
return hasRow;
|
1501
|
}
|
1502
|
|
1503
|
/* Get the flag for public "read" access for @docid from db conn. */
|
1504
|
private String getPublicAccess(String docid) throws SQLException {
|
1505
|
|
1506
|
int publicAcc = 0;
|
1507
|
PreparedStatement pstmt;
|
1508
|
pstmt = conn.prepareStatement("SELECT public_access FROM xml_documents " +
|
1509
|
"WHERE docid = ?");
|
1510
|
pstmt.setString(1, docid);
|
1511
|
pstmt.execute();
|
1512
|
ResultSet rs = pstmt.getResultSet();
|
1513
|
boolean hasRow = rs.next();
|
1514
|
if ( hasRow ) {
|
1515
|
publicAcc = rs.getInt(1);
|
1516
|
}
|
1517
|
|
1518
|
return (publicAcc == 1) ? "yes" : "no";
|
1519
|
}
|
1520
|
|
1521
|
/* Get SystemID for @publicID from Metacat DB Catalog. */
|
1522
|
private String getSystemID(String publicID) throws SQLException {
|
1523
|
|
1524
|
String systemID = "";
|
1525
|
PreparedStatement pstmt;
|
1526
|
pstmt = conn.prepareStatement("SELECT system_id FROM xml_catalog " +
|
1527
|
"WHERE entry_type = 'DTD' " +
|
1528
|
"AND public_id = ?");
|
1529
|
pstmt.setString(1, publicID);
|
1530
|
pstmt.execute();
|
1531
|
ResultSet rs = pstmt.getResultSet();
|
1532
|
boolean hasRow = rs.next();
|
1533
|
if ( hasRow ) {
|
1534
|
systemID = rs.getString(1);
|
1535
|
}
|
1536
|
|
1537
|
return systemID;
|
1538
|
}
|
1539
|
|
1540
|
}
|