Revision 2245
Added by sgarg over 19 years ago
PermissionController.java | ||
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/** |
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* '$RCSfile$' |
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* Purpose: A class that handles checking permssision for a document |
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and subtree in a document
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*
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and subtree in a document |
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* |
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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: Chad Berkley |
... | ... | |
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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.sql.*; |
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import java.util.Enumeration; |
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import java.util.Hashtable; |
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import java.util.Stack; |
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import java.util.Vector; |
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import java.util.Iterator; |
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public class PermissionController |
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{ |
... | ... | |
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private boolean hasSubTreeAccessControl = false; // flag if has a subtree |
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// access for this docid |
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private Vector subTreeList = new Vector(); |
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private long TOPLEVELSTARTNODEID = 0; //if start node is 0, means it is top |
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//level document |
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/** |
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* Constructor for PermissionController |
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* @param myDocid the docid need to access |
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{ |
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// Get rid of rev number |
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docId = MetaCatUtil.getSmartDocId(myDocid); |
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hasSubTreeAccessControl = checkSubTreeAccessControl(); |
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//hasSubTreeAccessControl = checkSubTreeAccessControl();
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} |
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/** |
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* Constructor for PermssionController |
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* @param myDocid String |
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* @param needDeleteRev boolean |
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*/ |
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public PermissionController(String myDocid, boolean needDeleteRevFromDocid) |
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{ |
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if (!needDeleteRevFromDocid) |
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{ |
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docId = myDocid; |
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} |
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else |
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{ |
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docId = MetaCatUtil.getDocIdFromAccessionNumber(myDocid); |
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} |
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} |
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/** |
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* Return if a document has subtree access control |
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*/ |
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public boolean hasSubTreeAccessControl() |
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{ |
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return hasSubTreeAccessControl; |
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} |
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/* |
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* Go through the access table and find if has subtree access control |
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* if has, store the subtree into list and return true. Otherwise, |
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* return false |
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*/ |
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private boolean checkSubTreeAccessControl() throws McdbException |
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{ |
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boolean flag = false; |
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PreparedStatement pStmt=null; |
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ResultSet rs=null; |
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DBConnection conn=null; |
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int serialNumber=-1; |
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String query="SELECT subtreeid, startnodeid, endnodeid from xml_access " + |
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"where docid =? "; |
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try |
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{ |
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//check out DBConnection |
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conn=DBConnectionPool.getDBConnection("PermissionController.hasSubTreeA"); |
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serialNumber=conn.getCheckOutSerialNumber(); |
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pStmt=conn.prepareStatement(query); |
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//bind the value to query |
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pStmt.setString(1, docId); |
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//execute the query |
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pStmt.execute(); |
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rs=pStmt.getResultSet(); |
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//process the result |
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while (rs.next()) // |
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{ |
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String subTreeId = rs.getString(1); |
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MetaCatUtil.debugMessage("subtreeid: "+subTreeId, 35); |
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long startNodeId = rs.getLong(2); |
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MetaCatUtil.debugMessage("subtree startNodeId: "+startNodeId, 35); |
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long endNodeId = rs.getLong(3); |
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MetaCatUtil.debugMessage("subtree endNodeId: "+endNodeId, 35); |
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// if startnodeid field in table is empty,startNodeId will be 0 |
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if (subTreeId != null && startNodeId != 0 && startNodeId != 0) |
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{ |
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flag = true;// has subtree control |
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SubTree tree = new SubTree(); |
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tree.setSubTreeId(subTreeId); |
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tree.setStartNodeId(startNodeId); |
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tree.setEndNodeId(endNodeId); |
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subTreeList.add(tree); |
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} |
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} |
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}//try |
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catch (SQLException e) |
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{ |
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throw new McdbException(e); |
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} |
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finally |
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{ |
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try |
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{ |
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pStmt.close(); |
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} |
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catch(SQLException ee) |
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{ |
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throw new McdbException(ee); |
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} |
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finally |
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{ |
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DBConnectionPool.returnDBConnection(conn, serialNumber); |
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} |
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} |
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return flag; |
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} |
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/** |
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* Check from db connection if at least one of the list of @principals |
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* @param user the user name |
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* @param groups the groups which the use is in |
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* @param myPermission permission type to check for |
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*/ |
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public boolean hasPermission(String user, String[]groups, String myPermission)
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public boolean hasPermission(String user, String[]groups, String myPermission) |
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throws SQLException, Exception |
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{ |
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boolean hasPermission=false; |
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String [] userPackage=null; |
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int permission =AccessControlList.intValue(myPermission); |
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//for the commnad line invocation |
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if ((user==null) && (groups==null || groups.length==0)) |
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{ |
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return true; |
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} |
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//create a userpackage including user, public and group member |
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userPackage=createUsersPackage(user, groups); |
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//if the requested document is access documents and requested permission |
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//is "write", the user should have "all" right |
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if (isAccessDocument(docId) && (permission == AccessControlInterface.WRITE)) |
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{ |
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hasPermission = hasPermission(userPackage,docId, 7);// 7 is all permission |
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}//if |
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else //in other situation, just check the request permission |
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{ |
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// Check for @permission on @docid for @user and/or @groups |
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hasPermission = hasPermission(userPackage,docId, permission); |
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}//else |
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return hasPermission; |
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} |
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/** |
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* Check from db connection if the users in String array @principals has |
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* @permission on @docid*
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* @permission on @docid* |
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* @param principals, names in userPakcage need to check for @permission |
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* @param docid, document identifier to check on |
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* @param permission, permission (write or all...) to check for
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* @param permission, permission (write or all...) to check for |
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*/ |
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private boolean hasPermission(String [] principals, String docId, |
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int permission) |
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throws SQLException |
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{ |
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long startId = TOPLEVELSTARTNODEID;// this is for top level, so startid is 0 |
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try
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try |
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{ |
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//first, if there is a docid owner in user package, return true |
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//because doc owner has all permssion
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//because doc owner has all permssion |
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if (containDocumentOwner(principals, docId)) |
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{ |
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return true; |
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} |
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//If there is no owner in user package, checking the table |
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//check perm_order |
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if (isAllowFirst(principals, docId, startId)) |
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{ |
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if (hasExplicitDenyRule(principals, docId, permission, startId)) |
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{ |
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//if it is allowfirst and has deny rule(either explicit ) |
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//deny access |
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return false; |
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}//if |
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else if ( hasAllowRule(principals, docId, permission, startId)) |
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{ |
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//if it is allowfirst and hasn't deny rule and has allow rule |
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//allow access |
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return true; |
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}//else if |
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else |
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{ |
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//other situation deny access |
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return false; |
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}//else |
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}//if isAllowFirst |
... | ... | |
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MetaCatUtil.debugMessage("There is a exception in hasPermission method: " |
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+e.getMessage(), 50); |
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} |
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return false; |
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}//hasPermission |
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/** |
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* Method to check if a person has permission to a inline data file |
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* @param user String |
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* @param groups String[] |
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* @param myPermission String |
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* @param inlineDataId String |
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* @throws McdbException |
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* @return boolean |
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*/ |
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private boolean hasPermissionForInlineData(String user, String[] groups, |
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String myPermission, String inlineDataId) |
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throws Exception |
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{ |
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// this method can call the public method - hasPermission(...) |
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// the only difference is about the ownership, you couldn't find the owner |
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// from inlinedataId directly. You should get it from eml document itself |
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String []userPackage = createUsersPackage(user, groups); |
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if (containDocumentOwner(userPackage, docId)) |
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{ |
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return true; |
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} |
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else |
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{ |
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PermissionController controller = |
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new PermissionController(inlineDataId, false); |
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return controller.hasPermission(user, groups, myPermission); |
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} |
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} |
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/** |
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* The method to determine of a node can be access by a user just by subtree |
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* access control |
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*/ |
... | ... | |
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{ |
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boolean flag = true; |
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// Get unaccessble subtree for this user |
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Hashtable unaccessableSubTree = hasUnaccessableSubTree(user, groups,
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Hashtable unaccessableSubTree = hasUnaccessableSubTree(user, groups, |
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myPermission); |
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Enumeration en = unaccessableSubTree.elements(); |
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while (en.hasMoreElements()) |
... | ... | |
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return flag; |
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} |
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/** |
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* This method will return a hasTable of subtree which user doesn't has the
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* This method will return a hasTable of subtree which user doesn't has the |
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* permssion to access |
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* @param user the user name |
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* @param groups the groups which the use is in |
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* @param myPermission permission type to check for |
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*/ |
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public Hashtable hasUnaccessableSubTree(String user, String[] groups,
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public Hashtable hasUnaccessableSubTree(String user, String[] groups, |
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String myPermission) throws McdbException |
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{ |
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Hashtable resultUnaccessableSubTree = new Hashtable(); |
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String [] principals=null; |
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int permission =AccessControlList.intValue(myPermission); |
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//for the commnad line invocation return null(no unaccessable subtree) |
293 | 271 |
if ((user==null) && (groups==null || groups.length==0)) |
294 | 272 |
{ |
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return resultUnaccessableSubTree; |
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} |
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//create a userpackage including user, public and group member |
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principals=createUsersPackage(user, groups); |
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//for the document owner return null(no unaccessable subtree) |
... | ... | |
309 | 287 |
{ |
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throw new McdbException(ee); |
311 | 289 |
} |
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// go through every subtree which has access control |
314 | 292 |
for (int i = 0; i< subTreeList.size(); i++) |
315 | 293 |
{ |
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SubTree tree = (SubTree)subTreeList.elementAt(i); |
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long startId = tree.getStartNodeId(); |
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320 | 298 |
try |
321 | 299 |
{ |
322 | 300 |
if (isAllowFirst(principals, docId, startId)) |
323 | 301 |
{ |
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325 | 303 |
if (hasExplicitDenyRule(principals, docId, permission, startId )) |
326 | 304 |
{ |
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328 | 306 |
//if it is allowfirst and has deny rule |
329 | 307 |
// put the subtree into unaccessable vector |
330 | 308 |
if (!resultUnaccessableSubTree.containsKey(new Long(startId))) |
... | ... | |
336 | 314 |
{ |
337 | 315 |
//if it is allowfirst and hasn't deny rule and has allow rule |
338 | 316 |
//allow access do nothing |
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340 | 318 |
}//else if |
341 | 319 |
else |
342 | 320 |
{ |
... | ... | |
345 | 323 |
{ |
346 | 324 |
resultUnaccessableSubTree.put(new Long(startId), tree); |
347 | 325 |
} |
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349 | 327 |
}//else |
350 | 328 |
}//if isAllowFirst |
351 | 329 |
else //denyFirst |
... | ... | |
353 | 331 |
if (hasAllowRule(principals, docId, permission,startId)) |
354 | 332 |
{ |
355 | 333 |
//if it is denyFirst and has allow rule, allow access, do nothing |
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357 | 335 |
} |
358 | 336 |
else |
359 | 337 |
{ |
... | ... | |
372 | 350 |
"UnaccessableSubTree "+e.getMessage(), 30); |
373 | 351 |
throw new McdbException(e); |
374 | 352 |
} |
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376 | 354 |
}//for |
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// merge the subtree if a subtree is another subtree'subtree
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// merge the subtree if a subtree is another subtree'subtree |
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378 | 356 |
resultUnaccessableSubTree = mergeEquivalentSubtree(resultUnaccessableSubTree); |
379 | 357 |
return resultUnaccessableSubTree; |
380 | 358 |
}//hasUnaccessableSubtree |
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/*
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/* |
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384 | 362 |
* A method to merge nested subtree into bigger one. For example subtree b |
385 | 363 |
* is a subtree of subtree a. And user doesn't have read permission for both |
386 | 364 |
* so we only use subtree a is enough. |
... | ... | |
406 | 384 |
String treeId = tree.getSubTreeId(); |
407 | 385 |
long startId = tree.getStartNodeId(); |
408 | 386 |
long endId = tree.getEndNodeId(); |
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410 | 388 |
Enumeration enu = unAccessSubTree.elements(); |
411 | 389 |
while (enu.hasMoreElements()) |
412 | 390 |
{ |
... | ... | |
419 | 397 |
if (startId > subTreeStartId && endId < subTreeEndId) |
420 | 398 |
{ |
421 | 399 |
needDelete = true; |
422 |
MetaCatUtil.debugMessage("the subtree: "+ treeId +
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MetaCatUtil.debugMessage("the subtree: "+ treeId + |
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423 | 401 |
" need to be get rid of from unaccessable"+ |
424 | 402 |
" subtree list becuase it is a subtree of"+ |
425 | 403 |
" another subtree in the list", 45); |
... | ... | |
437 | 415 |
return newSubTreeHash; |
438 | 416 |
}//else |
439 | 417 |
} |
440 |
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|
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441 | 419 |
/** |
442 | 420 |
* Check if a document id is a access document. Access document need user |
443 | 421 |
* has "all" permission to access it. |
... | ... | |
461 | 439 |
ResultSet rs = pStmt.getResultSet(); |
462 | 440 |
boolean hasRow = rs.next(); |
463 | 441 |
String doctype = null; |
464 |
if (hasRow)
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442 |
if (hasRow) |
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465 | 443 |
{ |
466 | 444 |
doctype = rs.getString(1); |
467 |
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468 | 446 |
} |
469 | 447 |
pStmt.close(); |
470 |
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448 |
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471 | 449 |
// if it is an access document |
472 | 450 |
if (doctype != null && ((MetaCatUtil.getOptionList(MetaCatUtil. |
473 | 451 |
getOption("accessdoctype")).contains(doctype)))) |
474 | 452 |
{ |
475 |
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476 | 454 |
return true; |
477 | 455 |
} |
478 |
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456 |
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479 | 457 |
} |
480 | 458 |
catch(SQLException e) |
481 | 459 |
{ |
482 |
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460 |
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483 | 461 |
throw new SQLException("PermissionControl.isAccessDocument " + |
484 | 462 |
"Error checking" + |
485 | 463 |
" on document " + docId + ". " + e.getMessage()); |
... | ... | |
495 | 473 |
DBConnectionPool.returnDBConnection(conn, serialNumber); |
496 | 474 |
} |
497 | 475 |
} |
498 |
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476 |
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499 | 477 |
return false; |
500 | 478 |
}//isAccessDocument |
501 |
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502 |
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503 |
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480 |
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481 |
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504 | 482 |
/** |
505 | 483 |
* Check if a stirng array contains a given documents' owner |
506 | 484 |
* @param principals, a string array storing the username, groups name and |
507 | 485 |
* public. |
508 |
* @param docid, the id of given documents
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509 |
*/
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486 |
* @param docid, the id of given documents |
|
487 |
*/ |
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510 | 488 |
private boolean containDocumentOwner( String[] principals, String docId) |
511 | 489 |
throws SQLException |
512 | 490 |
{ |
513 | 491 |
int lengthOfArray=principals.length; |
514 |
boolean hasRow;
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492 |
boolean hasRow; |
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515 | 493 |
PreparedStatement pStmt=null; |
516 | 494 |
DBConnection conn = null; |
517 | 495 |
int serialNumber = -1; |
518 |
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496 |
|
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519 | 497 |
try |
520 | 498 |
{ |
521 | 499 |
//check out DBConnection |
... | ... | |
523 | 501 |
serialNumber=conn.getCheckOutSerialNumber(); |
524 | 502 |
pStmt = conn.prepareStatement( |
525 | 503 |
"SELECT 'x' FROM xml_documents " + |
526 |
"WHERE docid = ? AND lower(user_owner) = ?");
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504 |
"WHERE docid = ? AND lower(user_owner) = ?"); |
|
527 | 505 |
//check every element in the string array too see if it conatains |
528 | 506 |
//the owner of document |
529 | 507 |
for (int i=0; i<lengthOfArray; i++) |
530 | 508 |
{ |
531 |
|
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509 |
|
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532 | 510 |
// Bind the values to the query |
533 | 511 |
pStmt.setString(1, docId); |
534 | 512 |
pStmt.setString(2, principals[i]); |
535 |
MetaCatUtil.debugMessage("the principle stack is : " +
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513 |
MetaCatUtil.debugMessage("the principle stack is : " + |
|
536 | 514 |
principals[i], 40); |
537 | 515 |
|
538 | 516 |
pStmt.execute(); |
539 | 517 |
ResultSet rs = pStmt.getResultSet(); |
540 | 518 |
hasRow = rs.next(); |
541 |
if (hasRow)
|
|
519 |
if (hasRow) |
|
542 | 520 |
{ |
543 | 521 |
pStmt.close(); |
544 | 522 |
MetaCatUtil.debugMessage("find the owner", 40); |
545 | 523 |
return true; |
546 |
}//if
|
|
547 |
|
|
524 |
}//if |
|
525 |
|
|
548 | 526 |
}//for |
549 | 527 |
}//try |
550 |
catch (SQLException e)
|
|
528 |
catch (SQLException e) |
|
551 | 529 |
{ |
552 | 530 |
pStmt.close(); |
553 |
|
|
554 |
throw new
|
|
531 |
|
|
532 |
throw new |
|
555 | 533 |
SQLException("PermissionControl.hasPermission(). " + |
556 | 534 |
"Error checking ownership for " + principals[0] + |
557 | 535 |
" on document #" + docId + ". " + e.getMessage()); |
... | ... | |
567 | 545 |
DBConnectionPool.returnDBConnection(conn, serialNumber); |
568 | 546 |
} |
569 | 547 |
} |
570 |
return false;
|
|
548 |
return false; |
|
571 | 549 |
}//containDocumentOwner |
572 |
|
|
550 |
|
|
573 | 551 |
/** |
574 | 552 |
* Check if the permission order for user at that documents is allowFirst |
575 |
* @param principals, list of names of principals to check for
|
|
553 |
* @param principals, list of names of principals to check for |
|
576 | 554 |
* @param docid, document identifier to check for |
577 | 555 |
*/ |
578 |
private boolean isAllowFirst(String [] principals, String docId,
|
|
556 |
private boolean isAllowFirst(String [] principals, String docId, |
|
579 | 557 |
long startId) |
580 | 558 |
throws SQLException, Exception |
581 | 559 |
{ |
... | ... | |
599 | 577 |
sql = "SELECT perm_order FROM xml_access " + |
600 | 578 |
"WHERE lower(principal_name)= ? AND docid = ? AND startnodeid = ?"; |
601 | 579 |
} |
602 |
|
|
580 |
|
|
603 | 581 |
try |
604 | 582 |
{ |
605 | 583 |
//check out DBConnection |
606 | 584 |
conn=DBConnectionPool.getDBConnection("AccessControlList.isAllowFirst"); |
607 | 585 |
serialNumber=conn.getCheckOutSerialNumber(); |
608 |
|
|
586 |
|
|
609 | 587 |
//select permission order from database |
610 | 588 |
pStmt = conn.prepareStatement(sql); |
611 |
|
|
589 |
|
|
612 | 590 |
//check every name in the array |
613 | 591 |
for (int i=0; i<lengthOfArray;i++) |
614 | 592 |
{ |
615 | 593 |
//bind value |
616 | 594 |
pStmt.setString(1, principals[i]);//user name |
617 | 595 |
pStmt.setString(2, docId);//docid |
618 |
|
|
619 |
// if subtree, we need set subtree id
|
|
596 |
|
|
597 |
// if subtree, we need set subtree id |
|
620 | 598 |
if (!topLever) |
621 | 599 |
{ |
622 | 600 |
pStmt.setLong(3, startId); |
623 | 601 |
} |
624 |
|
|
602 |
|
|
625 | 603 |
pStmt.execute(); |
626 | 604 |
ResultSet rs = pStmt.getResultSet(); |
627 | 605 |
hasRow=rs.next(); |
... | ... | |
658 | 636 |
DBConnectionPool.returnDBConnection(conn, serialNumber); |
659 | 637 |
} |
660 | 638 |
} |
661 |
|
|
662 |
//if reach here, means there is no permssion record for given names and
|
|
639 |
|
|
640 |
//if reach here, means there is no permssion record for given names and |
|
663 | 641 |
//docid. So throw a exception. |
664 |
|
|
642 |
|
|
665 | 643 |
throw new Exception("There is no permission record for user"+principals[0]+ |
666 | 644 |
"at document "+docId); |
667 |
|
|
645 |
|
|
668 | 646 |
}//isAllowFirst |
669 |
|
|
647 |
|
|
670 | 648 |
/** |
671 |
* Check if the users array has allow rules for given users, docid and
|
|
649 |
* Check if the users array has allow rules for given users, docid and |
|
672 | 650 |
* permission. |
673 | 651 |
* If it has permission rule and ticket count is greater than 0, the ticket |
674 | 652 |
* number will decrease one for every allow rule |
675 |
* @param principals, list of names of principals to check for
|
|
653 |
* @param principals, list of names of principals to check for |
|
676 | 654 |
* @param docid, document identifier to check for |
677 | 655 |
* @param permission, the permssion need to check |
678 | 656 |
*/ |
679 |
private boolean hasAllowRule(String [] principals, String docId,
|
|
657 |
private boolean hasAllowRule(String [] principals, String docId, |
|
680 | 658 |
int permission, long startId) |
681 | 659 |
throws SQLException, Exception |
682 | 660 |
{ |
... | ... | |
695 | 673 |
{ |
696 | 674 |
// for toplevel |
697 | 675 |
topLever = true; |
698 |
sql = "SELECT permission FROM xml_access WHERE docid = ? " +
|
|
676 |
sql = "SELECT permission FROM xml_access WHERE docid = ? " + |
|
699 | 677 |
"AND lower(principal_name) = ? AND perm_type = ? AND startnodeid is NULL"; |
700 | 678 |
} |
701 | 679 |
else |
702 | 680 |
{ |
703 | 681 |
topLever =false; |
704 |
sql = "SELECT permission FROM xml_access WHERE docid = ? " +
|
|
682 |
sql = "SELECT permission FROM xml_access WHERE docid = ? " + |
|
705 | 683 |
"AND lower(principal_name) = ? AND perm_type = ? AND startnodeid = ?"; |
706 | 684 |
} |
707 | 685 |
try |
... | ... | |
709 | 687 |
//check out DBConnection |
710 | 688 |
conn=DBConnectionPool.getDBConnection("AccessControlList.hasAllowRule"); |
711 | 689 |
serialNumber=conn.getCheckOutSerialNumber(); |
712 |
//This sql statement will select entry with
|
|
690 |
//This sql statement will select entry with |
|
713 | 691 |
//begin_time<=currentTime<=end_time in xml_access table |
714 | 692 |
//If begin_time or end_time is null in table, isnull(begin_time, sysdate) |
715 | 693 |
//function will assign begin_time=sysdate |
... | ... | |
717 | 695 |
//bind docid, perm_type |
718 | 696 |
pStmt.setString(1, docId); |
719 | 697 |
pStmt.setString(3, AccessControlInterface.ALLOW); |
720 |
|
|
698 |
|
|
721 | 699 |
// if subtree lever, need to set subTreeId |
722 | 700 |
if (!topLever) |
723 | 701 |
{ |
724 | 702 |
pStmt.setLong(4, startId); |
725 | 703 |
} |
726 |
|
|
704 |
|
|
727 | 705 |
//bind every elenment in user name array |
728 | 706 |
for (int i=0;i<lengthOfArray; i++) |
729 | 707 |
{ |
... | ... | |
733 | 711 |
while (rs.next())//check every entry for one user |
734 | 712 |
{ |
735 | 713 |
permissionValueInTable=rs.getInt(1); |
736 |
|
|
737 |
//permission is ok
|
|
714 |
|
|
715 |
//permission is ok |
|
738 | 716 |
//the user have a permission to access the file |
739 | 717 |
if (( permissionValueInTable & permissionValue )== permissionValue ) |
740 | 718 |
{ |
741 |
|
|
719 |
|
|
742 | 720 |
allow=true;//has allow rule entry |
743 | 721 |
}//if |
744 | 722 |
}//while |
... | ... | |
765 | 743 |
} |
766 | 744 |
return allow; |
767 | 745 |
}//hasAllowRule |
768 |
|
|
769 |
|
|
770 |
|
|
746 |
|
|
747 |
|
|
748 |
|
|
771 | 749 |
/** |
772 |
* Check if the users array has explicit deny rules for given users, docid
|
|
750 |
* Check if the users array has explicit deny rules for given users, docid |
|
773 | 751 |
* and permission. That means the perm_type is deny and current time is |
774 | 752 |
* less than end_time and greater than begin time, or no time limit. |
775 |
* @param principals, list of names of principals to check for
|
|
753 |
* @param principals, list of names of principals to check for |
|
776 | 754 |
* @param docid, document identifier to check for |
777 | 755 |
* @param permission, the permssion need to check |
778 | 756 |
*/ |
779 |
private boolean hasExplicitDenyRule(String [] principals, String docId,
|
|
757 |
private boolean hasExplicitDenyRule(String [] principals, String docId, |
|
780 | 758 |
int permission, long startId) |
781 | 759 |
throws SQLException |
782 | 760 |
{ |
... | ... | |
789 | 767 |
int serialNumber = -1; |
790 | 768 |
String sql = null; |
791 | 769 |
boolean topLevel = false; |
792 |
|
|
770 |
|
|
793 | 771 |
// decide top level or subtree level |
794 | 772 |
if (startId == TOPLEVELSTARTNODEID) |
795 | 773 |
{ |
796 | 774 |
topLevel = true; |
797 |
sql = "SELECT permission FROM xml_access WHERE docid = ? " +
|
|
775 |
sql = "SELECT permission FROM xml_access WHERE docid = ? " + |
|
798 | 776 |
"AND lower(principal_name) = ? AND perm_type = ? AND startnodeid is NULL"; |
799 | 777 |
} |
800 | 778 |
else |
801 | 779 |
{ |
802 | 780 |
topLevel = false; |
803 |
sql = "SELECT permission FROM xml_access WHERE docid = ? " +
|
|
781 |
sql = "SELECT permission FROM xml_access WHERE docid = ? " + |
|
804 | 782 |
"AND lower(principal_name) = ? AND perm_type = ? AND startnodeid = ?"; |
805 | 783 |
} |
806 |
|
|
784 |
|
|
807 | 785 |
try |
808 | 786 |
{ |
809 | 787 |
//check out DBConnection |
810 | 788 |
conn=DBConnectionPool.getDBConnection("PermissionControl.hasExplicitDeny"); |
811 | 789 |
serialNumber=conn.getCheckOutSerialNumber(); |
812 |
|
|
790 |
|
|
813 | 791 |
pStmt = conn.prepareStatement(sql); |
814 | 792 |
//bind docid, perm_type |
815 | 793 |
pStmt.setString(1, docId); |
816 | 794 |
pStmt.setString(3, AccessControlInterface.DENY); |
817 |
|
|
795 |
|
|
818 | 796 |
// subtree level need to set up subtreeid |
819 | 797 |
if (!topLevel) |
820 | 798 |
{ |
821 | 799 |
pStmt.setLong(4, startId); |
822 | 800 |
} |
823 |
|
|
801 |
|
|
824 | 802 |
//bind every elenment in user name array |
825 | 803 |
for (int i=0;i<lengthOfArray; i++) |
826 | 804 |
{ |
... | ... | |
830 | 808 |
while (rs.next())//check every entry for one user |
831 | 809 |
{ |
832 | 810 |
permissionValueInTable=rs.getInt(1); |
833 |
|
|
811 |
|
|
834 | 812 |
//permission is ok the user doesn't have permission to access the file |
835 | 813 |
if (( permissionValueInTable & permissionValue )== permissionValue ) |
836 |
|
|
814 |
|
|
837 | 815 |
{ |
838 | 816 |
pStmt.close(); |
839 | 817 |
return true; |
... | ... | |
857 | 835 |
} |
858 | 836 |
}//finally |
859 | 837 |
return false;//no deny rule |
860 |
}//hasExplicitDenyRule |
|
861 |
|
|
838 |
}//hasExplicitDenyRule |
|
862 | 839 |
|
840 |
|
|
863 | 841 |
/** |
864 | 842 |
* Creat a users pakages to check permssion rule, user itself, public and |
865 | 843 |
* the gourps the user belong will be include in this package |
... | ... | |
870 | 848 |
{ |
871 | 849 |
String [] usersPackage=null; |
872 | 850 |
int lengthOfPackage; |
873 |
|
|
851 |
|
|
874 | 852 |
if (groups!=null) |
875 | 853 |
{ |
876 |
//if gouprs is not null and user is not public, we should create a array
|
|
877 |
//to store the groups and user and public.
|
|
854 |
//if gouprs is not null and user is not public, we should create a array |
|
855 |
//to store the groups and user and public. |
|
878 | 856 |
//So the length of userPackage is the length of group plus two |
879 | 857 |
if (!user.equalsIgnoreCase(AccessControlInterface.PUBLIC)) |
880 | 858 |
{ |
... | ... | |
886 | 864 |
{ |
887 | 865 |
usersPackage[0]= user.toLowerCase(); |
888 | 866 |
MetaCatUtil.debugMessage("after transfer to lower case(not null): "+ |
889 |
usersPackage[0], 45);
|
|
867 |
usersPackage[0], 45); |
|
890 | 868 |
} |
891 | 869 |
else |
892 | 870 |
{ |
... | ... | |
923 | 901 |
} |
924 | 902 |
} //for |
925 | 903 |
}//else user=public |
926 |
|
|
904 |
|
|
927 | 905 |
}//if groups!=null |
928 | 906 |
else |
929 | 907 |
{ |
... | ... | |
953 | 931 |
}//else groups==null |
954 | 932 |
return usersPackage; |
955 | 933 |
}//createUsersPackage |
956 |
|
|
934 |
|
|
935 |
|
|
957 | 936 |
/** |
958 |
* This method will return a data set id for given access id. |
|
959 |
* @param accessDocId, the accessDocId which need to be found data set id |
|
937 |
* A static method to get Hashtable which cointains a inlinedata object list that |
|
938 |
* user can't read it. The key is subtree id of inlinedata, the data is |
|
939 |
* internal file name for the inline data which is stored as docid |
|
940 |
* in xml_access table or data object doc id. |
|
941 |
* @param docidWithoutRev, metadata docid which should be the accessfileid |
|
942 |
* in the table |
|
943 |
* @param user , the name of user |
|
944 |
* @param groups, the group which the user belong to |
|
960 | 945 |
*/ |
961 |
private String getDataSetId(String accessDocId) |
|
962 |
throws SQLException |
|
946 |
public static Hashtable getUnReadableInlineDataIdList(String docidWithoutRev, |
|
947 |
String user, String[] groups) |
|
948 |
throws Exception |
|
949 |
{ |
|
950 |
Hashtable inlineDataList = getUnAccessableInlineDataIdList(docidWithoutRev, |
|
951 |
user, groups, AccessControlInterface.READSTRING); |
|
952 |
|
|
953 |
return inlineDataList; |
|
954 |
} |
|
955 |
|
|
956 |
/** |
|
957 |
* A static method to get Hashtable which cointains a inline data object list that |
|
958 |
* user can't overwrite it. The key is subtree id of inline data distrubition, |
|
959 |
* the value is internal file name for the inline data which is stored as docid |
|
960 |
* in xml_access table or data object doc id. |
|
961 |
* @param docidWithoutRev, metadata docid which should be the accessfileid |
|
962 |
* in the table |
|
963 |
* @param user , the name of user |
|
964 |
* @param groups, the group which the user belong to |
|
965 |
*/ |
|
966 |
public static Hashtable getUnWritableInlineDataIdList(String docidWithoutRev, |
|
967 |
String user, String[] groups) |
|
968 |
throws Exception |
|
963 | 969 |
{ |
964 |
String dataSetId=null; |
|
965 |
PreparedStatement pStmt=null; |
|
966 |
ResultSet rs=null; |
|
967 |
DBConnection conn=null; |
|
968 |
int serialNumber=-1; |
|
969 |
String query="SELECT docId from xml_relation where subject = ? or " |
|
970 |
+"object = ?"; |
|
971 |
|
|
972 |
try |
|
973 |
{ |
|
974 |
//check out DBConnection |
|
975 |
conn=DBConnectionPool.getDBConnection("PermissionControl.getDataSetId"); |
|
976 |
serialNumber=conn.getCheckOutSerialNumber(); |
|
977 |
|
|
978 |
pStmt=conn.prepareStatement(query); |
|
979 |
//bind the value to query |
|
980 |
pStmt.setString(1, accessDocId); |
|
981 |
pStmt.setString(2, accessDocId); |
|
982 |
//execute the query |
|
983 |
pStmt.execute(); |
|
984 |
rs=pStmt.getResultSet(); |
|
985 |
//process the result |
|
986 |
if (rs.next()) //There are some records for the data set id for access id |
|
970 |
Hashtable inlineDataList = getUnAccessableInlineDataIdList(docidWithoutRev, |
|
971 |
user, groups, AccessControlInterface.WRITESTRING); |
|
972 |
|
|
973 |
return inlineDataList; |
|
974 |
} |
|
975 |
|
|
976 |
|
|
977 |
/* |
|
978 |
* This method will get hashtable which contains a unaccessable distribution |
|
979 |
* inlinedata object list |
|
980 |
*/ |
|
981 |
private static Hashtable getUnAccessableInlineDataIdList(String docid, |
|
982 |
String user, String[] groups, String permission) |
|
983 |
throws SQLException,McdbException, Exception |
|
984 |
{ |
|
985 |
Hashtable unAccessbleIdList = new Hashtable(); |
|
986 |
Hashtable allIdList = getAllInlineDataIdList(docid); |
|
987 |
Enumeration en = allIdList.keys(); |
|
988 |
while (en.hasMoreElements()) |
|
987 | 989 |
{ |
988 |
dataSetId=rs.getString(1); |
|
990 |
String subTreeId = (String) en.nextElement(); |
|
991 |
String fileId = (String) allIdList.get(subTreeId); |
|
992 |
//Here fileid is internal file id for line data. It stored in docid |
|
993 |
// field in xml_access table. so we don't need to delete rev |
|
994 |
PermissionController controller = new PermissionController(docid, false); |
|
995 |
if (!controller.hasPermissionForInlineData(user, groups, permission, fileId)) |
|
996 |
{ |
|
997 |
MetaCatUtil.debugMessage("Put subtree id " +subTreeId + " and " + |
|
998 |
"inline data file name " + fileId + " into "+ |
|
999 |
"un"+permission+" hash", 20); |
|
1000 |
unAccessbleIdList.put(subTreeId, fileId); |
|
1001 |
} |
|
989 | 1002 |
} |
990 |
else //No data set id for the given access id in xml_relation table |
|
991 |
{ |
|
992 |
dataSetId=null; |
|
993 |
} |
|
994 |
}//try |
|
995 |
finally |
|
996 |
{ |
|
997 |
try |
|
998 |
{ |
|
999 |
pStmt.close(); |
|
1000 |
} |
|
1001 |
finally |
|
1002 |
{ |
|
1003 |
DBConnectionPool.returnDBConnection(conn, serialNumber); |
|
1004 |
} |
|
1005 |
} |
|
1006 |
return dataSetId; |
|
1007 |
}//getDataPackageId() |
|
1008 |
|
|
1009 |
|
|
1003 |
return unAccessbleIdList; |
|
1004 |
} |
|
1005 |
|
|
1006 |
|
|
1007 |
/* |
|
1008 |
* This method will get a hash table from xml_access table for all records |
|
1009 |
* about the inline data. The key is subtree id and data is a inline internal |
|
1010 |
* file name |
|
1011 |
*/ |
|
1012 |
private static Hashtable getAllInlineDataIdList(String docid) throws SQLException |
|
1013 |
{ |
|
1014 |
Hashtable inlineDataList = new Hashtable(); |
|
1015 |
String sql = "SELECT subtreeid, docid FROM xml_access WHERE " + |
|
1016 |
"accessfileid = ? AND subtreeid IS NOT NULL"; |
|
1017 |
PreparedStatement pStmt=null; |
|
1018 |
ResultSet rs=null; |
|
1019 |
DBConnection conn=null; |
|
1020 |
int serialNumber=-1; |
|
1021 |
try |
|
1022 |
{ |
|
1023 |
//check out DBConnection |
|
1024 |
conn=DBConnectionPool.getDBConnection("PermissionControl.getDataSetId"); |
|
1025 |
serialNumber=conn.getCheckOutSerialNumber(); |
|
1026 |
pStmt=conn.prepareStatement(sql); |
|
1027 |
//bind the value to query |
|
1028 |
pStmt.setString(1, docid); |
|
1029 |
//execute the query |
|
1030 |
pStmt.execute(); |
|
1031 |
rs=pStmt.getResultSet(); |
|
1032 |
//process the result |
|
1033 |
while(rs.next()) |
|
1034 |
{ |
|
1035 |
String subTreeId = rs.getString(1); |
|
1036 |
String inlineDataId = rs.getString(2); |
|
1037 |
if (subTreeId != null && !subTreeId.trim().equals("") && |
|
1038 |
inlineDataId != null && !inlineDataId.trim().equals("")) |
|
1039 |
{ |
|
1040 |
inlineDataList.put(subTreeId, inlineDataId); |
|
1041 |
} |
|
1042 |
}//while |
|
1043 |
}//try |
|
1044 |
finally |
|
1045 |
{ |
|
1046 |
try |
|
1047 |
{ |
|
1048 |
pStmt.close(); |
|
1049 |
} |
|
1050 |
finally |
|
1051 |
{ |
|
1052 |
DBConnectionPool.returnDBConnection(conn, serialNumber); |
|
1053 |
} |
|
1054 |
}//finally |
|
1055 |
return inlineDataList; |
|
1056 |
}//getAllInlineDataIdList |
|
1010 | 1057 |
} |
Also available in: Unified diff
Merging in changes made in branch 'dataaccess' by Jing Tao.