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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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* '$Author$'
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* '$Date$'
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* '$Revision$'
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669
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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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static final int ALL = 1;
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static final int WRITE = 2;
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static final int READ = 4;
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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 boolean processingDTD;
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private String user;
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private String group;
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private String aclid;
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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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/**
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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 and DocumentImpl
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*
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* @param conn the JDBC connection where acl data are loaded
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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 docid 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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*/
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public AccessControlList(Connection conn, String aclid, Reader acl,
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String user, String group)
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throws SAXException, IOException, ClassNotFoundException
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{
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// Get an instance of the parser
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MetaCatUtil util = new MetaCatUtil();
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String parserName = util.getOption("saxparser");
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this.server = util.getOption("server");
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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.group = group;
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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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// Initialize the parser and read the queryspec
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XMLReader parser = initializeParser();
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parser.parse(new InputSource(acl));
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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 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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*/
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public AccessControlList( Connection conn, String aclid, String aclfilename,
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String user, String group )
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throws SAXException, IOException, ClassNotFoundException
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{
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this(conn, aclid, new FileReader(new File(aclfilename).toString()),
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user, group);
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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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if ( aclid != null ) {
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//first delete all permissions for resources related to @aclid if any
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deletePermissionsForRelatedResources(aclid);
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//then delete all relations with docid of @aclid if any
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deleteRelations(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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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("resource") ) {
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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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String inputString = new String(ch, start, length);
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BasicNode currentNode = (BasicNode)elementStack.peek();
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String currentTag = currentNode.getTagName();
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if (currentTag.equals("resourceIdentifier")) {
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// docid of the current resource
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String docid = getDocid(inputString);
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// URL string of the current resource
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// docurl is declared in the class
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try {
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docurl = (new URL(inputString)).toString();
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} catch (MalformedURLException murle) {
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throw new SAXException(murle.getMessage());
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}
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// collect them in Vector variables
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resourceID.addElement(docid);
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resourceURL.addElement(docurl);
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// check permissions for @user on the current resource first
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// @user must have permission "all" on it(docid)
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boolean hasPermission = false;
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try {
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hasPermission = hasPermission("ALL",user,docid);
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if ( !hasPermission && group != null ) {
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hasPermission = hasPermission("ALL",group,docid);
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}
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} catch (SQLException e) {
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throw new SAXException(e.getMessage());
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}
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if ( !hasPermission ) {
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256 |
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throw new SAXException(
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257 |
665
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"Permission denied for setting access control on " + docid);
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}
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// end of check for "all" perm on docid
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} else 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("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("duration") &&
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beginTime == null && endTime == null ) {
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279 |
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try {
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beginTime = inputString.substring(0, inputString.indexOf(" "));
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endTime = inputString.substring(inputString.indexOf(" ")+1);
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} catch (StringIndexOutOfBoundsException se) {
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283 |
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beginTime = inputString;
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}
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} else if (currentTag.equals("ticketCount") && ticketCount == 0 ) {
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try {
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288 |
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ticketCount = (new Integer(inputString.trim())).intValue();
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289 |
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} catch (NumberFormatException nfe) {
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290 |
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throw new SAXException("Wrong integer format for:" + inputString);
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291 |
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}
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}
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293 |
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}
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294 |
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295 |
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/**
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296 |
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* callback method used by the SAX Parser when the end tag of an
|
297 |
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* element is detected. Used in this context to parse and store
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298 |
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* the acl information in class variables.
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299 |
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*/
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300 |
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public void endElement (String uri, String localName, String qName)
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301 |
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throws SAXException
|
302 |
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{
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303 |
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BasicNode leaving = (BasicNode)elementStack.pop();
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304 |
638
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if ( leaving.getTagName().equals("resourceIdentifier") ) {
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306 |
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try {
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307 |
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// make a relationship for @aclid on the current resource(docurl)
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308 |
638
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if ( aclid != null ) {
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309 |
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insertRelation(aclid, docurl);
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310 |
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}
|
311 |
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} catch (SQLException sqle) {
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312 |
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throw new SAXException(sqle);
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313 |
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}
|
314 |
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|
315 |
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} else if ( leaving.getTagName().equals("allow") ) {
|
316 |
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317 |
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if ( permission > 0 ) {
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318 |
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|
319 |
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// insert into db calculated permission for the list of principals
|
320 |
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|
try {
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321 |
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|
insertPermissions("allowed");
|
322 |
|
|
} catch (SQLException sqle) {
|
323 |
|
|
throw new SAXException(sqle);
|
324 |
|
|
}
|
325 |
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}
|
326 |
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|
327 |
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bojilova
|
// reset the allowed permission
|
328 |
660
|
bojilova
|
principal = new Vector();
|
329 |
555
|
bojilova
|
permission = 0;
|
330 |
570
|
bojilova
|
beginTime = null;
|
331 |
|
|
endTime = null;
|
332 |
|
|
ticketCount = 0;
|
333 |
555
|
bojilova
|
|
334 |
570
|
bojilova
|
} else if ( leaving.getTagName().equals("deny") ) {
|
335 |
|
|
|
336 |
|
|
if ( permission > 0 ) {
|
337 |
555
|
bojilova
|
|
338 |
570
|
bojilova
|
// insert into db calculated permission for the list of principals
|
339 |
|
|
try {
|
340 |
|
|
insertPermissions("denied");
|
341 |
|
|
} catch (SQLException sqle) {
|
342 |
|
|
throw new SAXException(sqle);
|
343 |
555
|
bojilova
|
}
|
344 |
|
|
}
|
345 |
|
|
|
346 |
570
|
bojilova
|
// reset the denied permission
|
347 |
660
|
bojilova
|
principal = new Vector();
|
348 |
570
|
bojilova
|
permission = 0;
|
349 |
|
|
beginTime = null;
|
350 |
|
|
endTime = null;
|
351 |
|
|
ticketCount = 0;
|
352 |
555
|
bojilova
|
|
353 |
570
|
bojilova
|
} else if ( leaving.getTagName().equals("resource") ) {
|
354 |
672
|
bojilova
|
|
355 |
|
|
// update public access for the list of resources
|
356 |
|
|
try {
|
357 |
|
|
updatePublicAccess(publicAcc);
|
358 |
|
|
} catch (SQLException sqle) {
|
359 |
|
|
throw new SAXException(sqle);
|
360 |
|
|
}
|
361 |
|
|
|
362 |
|
|
// reset the resource
|
363 |
665
|
bojilova
|
resourceID = new Vector();
|
364 |
|
|
resourceURL = new Vector();
|
365 |
570
|
bojilova
|
permOrder = null;
|
366 |
672
|
bojilova
|
publicAcc = null;
|
367 |
570
|
bojilova
|
}
|
368 |
555
|
bojilova
|
|
369 |
|
|
}
|
370 |
598
|
bojilova
|
|
371 |
|
|
/** SAX Handler that receives notification of DOCTYPE. Sets the DTD */
|
372 |
|
|
public void startDTD(String name, String publicId, String systemId)
|
373 |
|
|
throws SAXException {
|
374 |
|
|
docname = name;
|
375 |
|
|
doctype = publicId;
|
376 |
|
|
systemid = systemId;
|
377 |
|
|
// processingDTD = true;
|
378 |
|
|
}
|
379 |
|
|
|
380 |
|
|
/**
|
381 |
|
|
* SAX Handler that receives notification of the start of entities
|
382 |
|
|
*/
|
383 |
|
|
public void startEntity(String name) throws SAXException {
|
384 |
|
|
if (name.equals("[dtd]")) {
|
385 |
|
|
processingDTD = true;
|
386 |
|
|
}
|
387 |
|
|
}
|
388 |
|
|
|
389 |
|
|
/**
|
390 |
|
|
* SAX Handler that receives notification of the end of entities
|
391 |
|
|
*/
|
392 |
|
|
public void endEntity(String name) throws SAXException {
|
393 |
|
|
if (name.equals("[dtd]")) {
|
394 |
|
|
processingDTD = false;
|
395 |
|
|
}
|
396 |
|
|
}
|
397 |
|
|
|
398 |
|
|
/**
|
399 |
|
|
* get the document name
|
400 |
|
|
*/
|
401 |
|
|
public String getDocname() {
|
402 |
|
|
return docname;
|
403 |
|
|
}
|
404 |
|
|
|
405 |
|
|
/**
|
406 |
|
|
* get the document processing state
|
407 |
|
|
*/
|
408 |
|
|
public boolean processingDTD() {
|
409 |
|
|
return processingDTD;
|
410 |
|
|
}
|
411 |
|
|
|
412 |
645
|
bojilova
|
/** Delete from db all permission for resources related to @aclid if any */
|
413 |
|
|
private void deletePermissionsForRelatedResources(String aclid)
|
414 |
638
|
bojilova
|
throws SQLException
|
415 |
|
|
{
|
416 |
645
|
bojilova
|
// delete all acl records for resources related to @aclid if any
|
417 |
638
|
bojilova
|
Statement stmt = conn.createStatement();
|
418 |
645
|
bojilova
|
stmt.execute("DELETE FROM xml_access WHERE accessfileid = '" + aclid + "'");
|
419 |
638
|
bojilova
|
stmt.close();
|
420 |
|
|
}
|
421 |
|
|
|
422 |
645
|
bojilova
|
/**
|
423 |
|
|
* Deletes all of the relations with a docid of @docid.
|
424 |
|
|
* @param docid the docid to delete.
|
425 |
|
|
*/
|
426 |
|
|
public void deleteRelations(String docid)
|
427 |
638
|
bojilova
|
throws SQLException
|
428 |
|
|
{
|
429 |
645
|
bojilova
|
Statement stmt = conn.createStatement();
|
430 |
|
|
stmt.execute("DELETE FROM xml_relation WHERE docid='" + docid + "'");
|
431 |
|
|
stmt.close();
|
432 |
|
|
}
|
433 |
|
|
|
434 |
|
|
/** Insert relationship into db for @aclid on @resourceURL */
|
435 |
|
|
private void insertRelation(String aclid, String resourceURL)
|
436 |
|
|
throws SQLException
|
437 |
|
|
{
|
438 |
|
|
String aclURL = "metacat://" + server + "/?docid=" + aclid;
|
439 |
638
|
bojilova
|
|
440 |
|
|
// insert relationship
|
441 |
|
|
PreparedStatement pstmt;
|
442 |
|
|
pstmt = conn.prepareStatement(
|
443 |
|
|
"INSERT INTO xml_relation (docid,subject,relationship,object) " +
|
444 |
|
|
"VALUES (?, ?, ?, ?)");
|
445 |
|
|
pstmt.setString(1, aclid);
|
446 |
|
|
pstmt.setString(2, aclURL);
|
447 |
|
|
pstmt.setString(3, "isaclfor");
|
448 |
|
|
pstmt.setString(4, resourceURL);
|
449 |
|
|
|
450 |
|
|
pstmt.execute();
|
451 |
|
|
pstmt.close();
|
452 |
|
|
}
|
453 |
|
|
|
454 |
570
|
bojilova
|
/** Insert into db calculated permission for the list of principals */
|
455 |
|
|
private void insertPermissions( String permType )
|
456 |
555
|
bojilova
|
throws SQLException
|
457 |
|
|
{
|
458 |
672
|
bojilova
|
PreparedStatement pstmt;
|
459 |
638
|
bojilova
|
|
460 |
555
|
bojilova
|
try {
|
461 |
|
|
pstmt = conn.prepareStatement(
|
462 |
|
|
"INSERT INTO xml_access " +
|
463 |
645
|
bojilova
|
"(docid, principal_name, permission, perm_type, perm_order," +
|
464 |
|
|
"begin_time,end_time,ticket_count, accessfileid) VALUES " +
|
465 |
|
|
"(?,?,?,?,?,to_date(?,'mm/dd/yy'),to_date(?,'mm/dd/yy'),?,?)");
|
466 |
555
|
bojilova
|
// Bind the values to the query
|
467 |
570
|
bojilova
|
pstmt.setInt(3, permission);
|
468 |
|
|
pstmt.setString(4, permType);
|
469 |
|
|
pstmt.setString(5, permOrder);
|
470 |
|
|
pstmt.setString(6, beginTime);
|
471 |
|
|
pstmt.setString(7, endTime);
|
472 |
645
|
bojilova
|
pstmt.setString(9, aclid);
|
473 |
570
|
bojilova
|
if ( ticketCount > 0 ) {
|
474 |
|
|
pstmt.setString(8, "" + ticketCount);
|
475 |
|
|
} else {
|
476 |
555
|
bojilova
|
pstmt.setString(8, "");
|
477 |
570
|
bojilova
|
}
|
478 |
665
|
bojilova
|
for ( int i = 0; i < resourceID.size(); i++ ) {
|
479 |
|
|
pstmt.setString(1, (String)resourceID.elementAt(i));
|
480 |
|
|
for ( int j = 0; j < principal.size(); j++ ) {
|
481 |
|
|
pstmt.setString(2, (String)principal.elementAt(j));
|
482 |
|
|
pstmt.execute();
|
483 |
|
|
}
|
484 |
570
|
bojilova
|
}
|
485 |
672
|
bojilova
|
pstmt.close();
|
486 |
555
|
bojilova
|
|
487 |
570
|
bojilova
|
} catch (SQLException e) {
|
488 |
|
|
throw new
|
489 |
|
|
SQLException("AccessControlList.insertPermissions(): " + e.getMessage());
|
490 |
672
|
bojilova
|
}
|
491 |
|
|
}
|
492 |
|
|
|
493 |
|
|
/** Update into db public read access for the list of resources */
|
494 |
|
|
private void updatePublicAccess(String publicAcc)
|
495 |
|
|
throws SQLException
|
496 |
|
|
{
|
497 |
|
|
try {
|
498 |
|
|
PreparedStatement pstmt;
|
499 |
|
|
pstmt = conn.prepareStatement(
|
500 |
|
|
"UPDATE xml_documents SET public_access = ?" +
|
501 |
|
|
" WHERE docid LIKE ?");
|
502 |
|
|
// Bind the values to the query
|
503 |
|
|
if ( publicAcc.toUpperCase().equals("YES") ) {
|
504 |
|
|
pstmt.setInt(1, 1);
|
505 |
|
|
} else {
|
506 |
|
|
pstmt.setInt(1, 0);
|
507 |
|
|
}
|
508 |
|
|
for ( int i = 0; i < resourceID.size(); i++ ) {
|
509 |
|
|
pstmt.setString(2, (String)resourceID.elementAt(i));
|
510 |
|
|
pstmt.execute();
|
511 |
|
|
}
|
512 |
667
|
berkley
|
pstmt.close();
|
513 |
672
|
bojilova
|
|
514 |
|
|
} catch (SQLException e) {
|
515 |
|
|
throw new
|
516 |
|
|
SQLException("AccessControlList.updatePublicAccess(): " + e.getMessage());
|
517 |
570
|
bojilova
|
}
|
518 |
|
|
}
|
519 |
|
|
|
520 |
665
|
bojilova
|
/** Check for @permission for @principal on @resourceID from db connection */
|
521 |
607
|
bojilova
|
public boolean hasPermission ( String permission,
|
522 |
665
|
bojilova
|
String principal, String resourceID )
|
523 |
570
|
bojilova
|
throws SQLException
|
524 |
|
|
{
|
525 |
|
|
PreparedStatement pstmt;
|
526 |
665
|
bojilova
|
// check public access to @resourceID from xml_documents table
|
527 |
570
|
bojilova
|
if ( permission.equals("READ") ) {
|
528 |
|
|
try {
|
529 |
607
|
bojilova
|
pstmt = conn.prepareStatement(
|
530 |
570
|
bojilova
|
"SELECT 'x' FROM xml_documents " +
|
531 |
|
|
"WHERE docid LIKE ? AND public_access = 1");
|
532 |
|
|
// Bind the values to the query
|
533 |
665
|
bojilova
|
pstmt.setString(1, resourceID);
|
534 |
570
|
bojilova
|
|
535 |
555
|
bojilova
|
pstmt.execute();
|
536 |
570
|
bojilova
|
ResultSet rs = pstmt.getResultSet();
|
537 |
|
|
boolean hasRow = rs.next();
|
538 |
|
|
pstmt.close();
|
539 |
|
|
if (hasRow) {
|
540 |
|
|
return true;
|
541 |
|
|
}
|
542 |
|
|
//System.out.println("Passed the check for public access");
|
543 |
|
|
|
544 |
|
|
} catch (SQLException e) {
|
545 |
|
|
throw new
|
546 |
|
|
SQLException("Error checking document's public access: "
|
547 |
|
|
+ e.getMessage());
|
548 |
555
|
bojilova
|
}
|
549 |
570
|
bojilova
|
}
|
550 |
|
|
|
551 |
|
|
// since owner of resource has all permission on it,
|
552 |
665
|
bojilova
|
// check if @principal is owner of @resourceID in xml_documents table
|
553 |
570
|
bojilova
|
if ( principal != null ) {
|
554 |
|
|
try {
|
555 |
607
|
bojilova
|
pstmt = conn.prepareStatement(
|
556 |
570
|
bojilova
|
"SELECT 'x' FROM xml_documents " +
|
557 |
|
|
"WHERE docid LIKE ? AND user_owner LIKE ?");
|
558 |
|
|
// Bind the values to the query
|
559 |
665
|
bojilova
|
pstmt.setString(1, resourceID);
|
560 |
570
|
bojilova
|
pstmt.setString(2, principal);
|
561 |
555
|
bojilova
|
|
562 |
570
|
bojilova
|
pstmt.execute();
|
563 |
|
|
ResultSet rs = pstmt.getResultSet();
|
564 |
|
|
boolean hasRow = rs.next();
|
565 |
|
|
pstmt.close();
|
566 |
|
|
if (hasRow) {
|
567 |
|
|
return true;
|
568 |
555
|
bojilova
|
}
|
569 |
570
|
bojilova
|
//System.out.println("Passed the check for ownership");
|
570 |
|
|
|
571 |
|
|
} catch (SQLException e) {
|
572 |
|
|
throw new
|
573 |
|
|
SQLException("AccessControlList.hasPermission(): " +
|
574 |
|
|
"Error checking document's ownership. " + e.getMessage());
|
575 |
|
|
}
|
576 |
|
|
|
577 |
665
|
bojilova
|
// check @principal's @permission on @resourceID from xml_access table
|
578 |
570
|
bojilova
|
int accessValue = 0;
|
579 |
|
|
int ticketCount = 0;
|
580 |
|
|
String permOrder = "";
|
581 |
|
|
try {
|
582 |
607
|
bojilova
|
pstmt = conn.prepareStatement(
|
583 |
570
|
bojilova
|
"SELECT permission, perm_order, ticket_count " +
|
584 |
|
|
"FROM xml_access " +
|
585 |
|
|
"WHERE docid LIKE ? " +
|
586 |
|
|
"AND principal_name LIKE ? " +
|
587 |
|
|
"AND sysdate BETWEEN nvl(begin_time,sysdate) " +
|
588 |
|
|
"AND nvl(end_time,sysdate) " +
|
589 |
|
|
"AND perm_type LIKE ?");
|
590 |
|
|
// check if it is "denied" first
|
591 |
|
|
// Bind the values to the query
|
592 |
665
|
bojilova
|
pstmt.setString(1, resourceID);
|
593 |
570
|
bojilova
|
pstmt.setString(2, principal);
|
594 |
|
|
pstmt.setString(3, "denied");
|
595 |
|
|
|
596 |
|
|
pstmt.execute();
|
597 |
|
|
ResultSet rs = pstmt.getResultSet();
|
598 |
|
|
boolean hasRows = rs.next();
|
599 |
|
|
while ( hasRows ) {
|
600 |
|
|
accessValue = rs.getInt(1);
|
601 |
|
|
permOrder = rs.getString(2);
|
602 |
|
|
ticketCount = rs.getInt(3);
|
603 |
|
|
if ( ( accessValue & intValue(permission) ) == intValue(permission) &&
|
604 |
638
|
bojilova
|
( permOrder.equals("allowFirst") ) &&
|
605 |
570
|
bojilova
|
( rs.wasNull() || ticketCount > 0 ) ) {
|
606 |
|
|
if ( !rs.wasNull() && ticketCount > 0 ) {
|
607 |
665
|
bojilova
|
decreaseNumberOfAccess(accessValue,principal,resourceID,"denied");
|
608 |
570
|
bojilova
|
}
|
609 |
|
|
pstmt.close();
|
610 |
|
|
return false;
|
611 |
|
|
}
|
612 |
|
|
hasRows = rs.next();
|
613 |
555
|
bojilova
|
}
|
614 |
570
|
bojilova
|
//System.out.println("Passed the check for denied access");
|
615 |
555
|
bojilova
|
|
616 |
570
|
bojilova
|
// it is not denied then check if it is "allowed"
|
617 |
|
|
// Bind the values to the query
|
618 |
665
|
bojilova
|
pstmt.setString(1, resourceID);
|
619 |
570
|
bojilova
|
pstmt.setString(2, principal);
|
620 |
|
|
pstmt.setString(3, "allowed");
|
621 |
|
|
|
622 |
555
|
bojilova
|
pstmt.execute();
|
623 |
570
|
bojilova
|
rs = pstmt.getResultSet();
|
624 |
|
|
hasRows = rs.next();
|
625 |
|
|
while ( hasRows ) {
|
626 |
|
|
accessValue = rs.getInt(1);
|
627 |
|
|
ticketCount = rs.getInt(3);
|
628 |
|
|
if ( ( accessValue & intValue(permission) )==intValue(permission) &&
|
629 |
|
|
( rs.wasNull() || ticketCount > 0 ) ) {
|
630 |
|
|
if ( !rs.wasNull() && ticketCount > 0 ) {
|
631 |
665
|
bojilova
|
decreaseNumberOfAccess(accessValue,principal,resourceID,"allowed");
|
632 |
570
|
bojilova
|
}
|
633 |
|
|
pstmt.close();
|
634 |
|
|
return true;
|
635 |
|
|
}
|
636 |
|
|
hasRows = rs.next();
|
637 |
|
|
}
|
638 |
|
|
//System.out.println("Passed the check for allowed access");
|
639 |
|
|
|
640 |
|
|
// ???
|
641 |
|
|
// here there could be a check for the group's permission like
|
642 |
|
|
// selfrecursive call to hasPermission(conn,permission,group,recourceId)
|
643 |
|
|
//
|
644 |
|
|
|
645 |
|
|
pstmt.close();
|
646 |
|
|
return false;
|
647 |
|
|
|
648 |
|
|
} catch (SQLException e) {
|
649 |
|
|
throw new
|
650 |
|
|
SQLException("AccessControlList.hasPermission(): " +
|
651 |
|
|
"Error checking document's permission. " + e.getMessage());
|
652 |
555
|
bojilova
|
}
|
653 |
570
|
bojilova
|
}
|
654 |
|
|
|
655 |
|
|
return false;
|
656 |
|
|
}
|
657 |
555
|
bojilova
|
|
658 |
665
|
bojilova
|
/** decrease the number of access to @resourceID for @principal */
|
659 |
570
|
bojilova
|
private void decreaseNumberOfAccess(int permission, String principal,
|
660 |
665
|
bojilova
|
String resourceID, String permType)
|
661 |
570
|
bojilova
|
throws SQLException
|
662 |
|
|
{
|
663 |
|
|
PreparedStatement pstmt;
|
664 |
|
|
pstmt = conn.prepareStatement(
|
665 |
|
|
"UPDATE xml_access SET ticket_count = ticket_count - 1 " +
|
666 |
|
|
"WHERE docid LIKE ? " +
|
667 |
|
|
"AND principal_name LIKE ? " +
|
668 |
|
|
"AND permission LIKE ? " +
|
669 |
|
|
"AND sysdate BETWEEN nvl(begin_time,sysdate) " +
|
670 |
|
|
"AND nvl(end_time,sysdate) " +
|
671 |
|
|
"AND perm_type LIKE ?");
|
672 |
|
|
// Bind the values to the query
|
673 |
665
|
bojilova
|
pstmt.setString(1, resourceID);
|
674 |
570
|
bojilova
|
pstmt.setString(2, principal);
|
675 |
|
|
pstmt.setInt(3, permission);
|
676 |
|
|
pstmt.setString(4, permType);
|
677 |
|
|
|
678 |
|
|
pstmt.execute();
|
679 |
|
|
pstmt.close();
|
680 |
|
|
}
|
681 |
|
|
|
682 |
|
|
// get the int value of READ, WRITE or ALL
|
683 |
|
|
private int intValue ( String permission )
|
684 |
|
|
{
|
685 |
|
|
if ( permission.equals("READ") ) {
|
686 |
|
|
return READ;
|
687 |
|
|
} else if ( permission.equals("WRITE") ) {
|
688 |
|
|
return WRITE;
|
689 |
|
|
} else if ( permission.equals("ALL") ) {
|
690 |
|
|
return ALL;
|
691 |
555
|
bojilova
|
}
|
692 |
570
|
bojilova
|
|
693 |
|
|
return -1;
|
694 |
555
|
bojilova
|
}
|
695 |
638
|
bojilova
|
|
696 |
652
|
bojilova
|
// get docid from @url
|
697 |
|
|
private String getDocid ( String url ) throws SAXException
|
698 |
638
|
bojilova
|
{
|
699 |
652
|
bojilova
|
MetaCatUtil util = new MetaCatUtil();
|
700 |
638
|
bojilova
|
try {
|
701 |
652
|
bojilova
|
URL urlobj = new URL(url);
|
702 |
|
|
Hashtable urlParams = util.parseQuery(urlobj.getQuery());
|
703 |
|
|
if ( urlParams.containsKey("docid") ) {
|
704 |
|
|
return (String)urlParams.get("docid"); // return the docid value
|
705 |
|
|
} else {
|
706 |
|
|
throw new
|
707 |
|
|
SAXException("\"docid\" not specified within " + url);
|
708 |
|
|
}
|
709 |
|
|
} catch (MalformedURLException e) {
|
710 |
638
|
bojilova
|
throw new SAXException(e.getMessage());
|
711 |
|
|
}
|
712 |
|
|
}
|
713 |
652
|
bojilova
|
|
714 |
555
|
bojilova
|
}
|