Package org.kawanfw.sql.api.server.firewall

Class DenyDclManager

java.lang.Object

org.kawanfw.sql.api.server.firewall.DenyDclManager

All Implemented Interfaces:

SqlFirewallManager

public class DenyDclManager
extends Object
implements SqlFirewallManager

Firewall manager that denies any DCL (Data Control Language) call.

Since:

4.0

Author:

Nicolas de Pomereu

Constructor Summary

Constructors

Constructor	Description
DenyDclManager()

Method Summary

Modifier and Type	Method	Description
boolean	allowMetadataQuery(String username, String database, Connection connection)	Says if the username is allowed call the Metadata Query API for the passed database.
boolean	allowSqlRunAfterAnalysis(SqlEvent sqlEvent, Connection connection)	Allows to analyze the SQL call event asked by the client side and thus allow or forbid the SQL execution on the server. If the analysis defined by the method returns false, the SQL statement won't be executed.
boolean	allowStatementClass(String username, String database, Connection connection)	Allows to define if the passed username is allowed to create and use a Statement instance that is not a PreparedStatement.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

DenyDclManager

public DenyDclManager()

Method Details

allowSqlRunAfterAnalysis

public boolean allowSqlRunAfterAnalysis(SqlEvent sqlEvent,
Connection connection)
                                 throws IOException,
SQLException

Description copied from interface: SqlFirewallManager

Allows to analyze the SQL call event asked by the client side and thus allow or forbid the SQL execution on the server.
If the analysis defined by the method returns false, the SQL statement won't be executed.

Specified by:

allowSqlRunAfterAnalysis in interface SqlFirewallManager

Parameters:

sqlEvent - the SQL event asked by the client side. Contains all info about the SQL call (client username, database name, IP Address of the client, and SQL statement details)

connection - The current SQL/JDBC Connection

Returns:

false if the SQL statement is DCL (Data Control Language).

Throws:

IOException - if an IOException occurs

SQLException - if a SQLException occurs

allowStatementClass

public boolean allowStatementClass(String username,
String database,
Connection connection)
                            throws IOException,
SQLException

Description copied from interface: SqlFirewallManager

Allows to define if the passed username is allowed to create and use a Statement instance that is not a PreparedStatement.

Specified by:

allowStatementClass in interface SqlFirewallManager

Parameters:

username - the client username to check the rule for

database - the database name as defined in the JDBC URL field

connection - The current SQL/JDBC Connection

Returns:

true. (Client programs will be allowed to create raw Statement, i.e. call statements without parameters.)

Throws:

IOException - if an IOException occurs

SQLException - if a SQLException occurs

allowMetadataQuery

public boolean allowMetadataQuery(String username,
String database,
Connection connection)
                           throws IOException,
SQLException

Description copied from interface: SqlFirewallManager

Says if the username is allowed call the Metadata Query API for the passed database.

Specified by:

allowMetadataQuery in interface SqlFirewallManager

Parameters:

username - the client username to check the rule for

database - the database name as defined in the JDBC URL field

connection - The current SQL/JDBC Connection

Returns:

true. (Client programs will be allowed to call the Metadata Query API).

Throws:

IOException - if an IOException occurs

SQLException - if a SQLException occurs