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The Zed Attack Proxy (ZAP) is an easy to use integrated penetration testing tool for finding vulnerabilities in web applications. It is designed to be used by people with a wide range of security experience and as such is ideal for developers and functional testers who are new to penetration testing. ZAP provides automated scanners as well as a set of tools that allow you to find security vulnerabilities manually.
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/*
* Zed Attack Proxy (ZAP) and its related class files.
*
* ZAP is an HTTP/HTTPS proxy for assessing web application security.
*
* Copyright 2012 The ZAP Development Team
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.parosproxy.paros.db;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
public class DbUtils {
private static final Logger LOGGER = LogManager.getLogger(DbUtils.class);
private DbUtils() {}
/**
* Tells whether the table {@code tableName} exists in the database, or not.
*
* @param connection the connection to the database
* @param tableName the name of the table that will be checked
* @return {@code true} if the table {@code tableName} exists in the database, {@code false}
* otherwise.
* @throws SQLException if an error occurred while checking if the table exists
*/
public static boolean hasTable(final Connection connection, final String tableName)
throws SQLException {
boolean hasTable = false;
ResultSet rs = null;
try {
rs = connection.getMetaData().getTables(null, null, tableName, null);
if (rs.next()) {
hasTable = true;
}
} finally {
try {
if (rs != null) {
rs.close();
}
} catch (SQLException e) {
LOGGER.debug(e.getMessage(), e);
}
}
return hasTable;
}
/**
* Tells whether the table {@code tableName} has the column with the given {@code columnName},
* or not.
*
* @param connection the connection to the database
* @param tableName the name of the table that may have the column
* @param columnName the name of the column that will be checked
* @return {@code true} if the table {@code tableName} has the column {@code columnName}, {@code
* false} otherwise.
* @throws SQLException if an error occurred while checking if the table has the column
*/
public static boolean hasColumn(
final Connection connection, final String tableName, final String columnName)
throws SQLException {
boolean hasColumn = false;
ResultSet rs = null;
try {
rs = connection.getMetaData().getColumns(null, null, tableName, columnName);
if (rs.next()) {
hasColumn = true;
}
} finally {
try {
if (rs != null) {
rs.close();
}
} catch (SQLException e) {
LOGGER.debug(e.getMessage(), e);
}
}
return hasColumn;
}
/**
* Tells whether the table {@code tableName} has an index with the given {@code indexName}, or
* not.
*
* @param connection the connection to the database
* @param tableName the name of the table that may have the index
* @param indexName the name of the index that will be checked
* @return {@code true} if the table {@code tableName} has the index {@code indexName}, {@code
* false} otherwise.
* @throws SQLException if an error occurred while checking if the table has the index
*/
public static boolean hasIndex(
final Connection connection, final String tableName, final String indexName)
throws SQLException {
boolean hasIndex = false;
ResultSet rs = null;
try {
rs = connection.getMetaData().getIndexInfo(null, null, tableName, false, false);
while (rs.next()) {
if (indexName.equals(rs.getString("INDEX_NAME"))) {
hasIndex = true;
break;
}
}
} finally {
try {
if (rs != null) {
rs.close();
}
} catch (SQLException e) {
LOGGER.debug(e.getMessage(), e);
}
}
return hasIndex;
}
/**
* Gets the type of the given column {@code columnName} of the table {@code tableName}.
*
* @param connection the connection to the database
* @param tableName the name of the table that has the column
* @param columnName the name of the column that will be used to get the type
* @return the type of the column, or -1 if the column doesn't exist.
* @throws SQLException if an error occurred while checking the type of the column
*/
public static int getColumnType(
final Connection connection, final String tableName, final String columnName)
throws SQLException {
int columnType = -1;
ResultSet rs = null;
try {
rs = connection.getMetaData().getColumns(null, null, tableName, columnName);
if (rs.next()) {
columnType = rs.getInt("SQL_DATA_TYPE");
}
} finally {
try {
if (rs != null) {
rs.close();
}
} catch (SQLException e) {
LOGGER.debug(e.getMessage(), e);
}
}
return columnType;
}
/**
* Gets the size of the given column {@code columnName} of the table {@code tableName}.
*
* @param connection the connection to the database
* @param tableName the name of the table that has the column
* @param columnName the name of the column that will be used to get the size
* @return the length of the column, or -1 if the column doesn't exist, or if the type has no
* size.
* @throws SQLException if an error occurred while checking the size of the column
*/
public static int getColumnSize(
final Connection connection, final String tableName, final String columnName)
throws SQLException {
int columnSize = -1;
ResultSet rs = null;
try {
rs = connection.getMetaData().getColumns(null, null, tableName, columnName);
if (rs.next()) {
columnSize = rs.getInt("COLUMN_SIZE");
}
} finally {
try {
if (rs != null) {
rs.close();
}
} catch (SQLException e) {
LOGGER.debug(e.getMessage(), e);
}
}
return columnSize;
}
/**
* Executes and closes the given {@code preparedStatement}.
*
* @param preparedStatement the statement that will be executed and immediately closed
* @throws SQLException if error occurred while executing the given {@code preparedStatement}
* @see PreparedStatement#close()
* @see PreparedStatement#execute()
* @deprecated (2.8.0) replaced by {@link #execute}
*/
@Deprecated
public static void executeAndClose(final PreparedStatement preparedStatement)
throws SQLException {
try {
preparedStatement.execute();
} finally {
try {
preparedStatement.close();
} catch (SQLException e) {
LOGGER.debug(e.getMessage(), e);
}
}
}
/**
* Utility function for executing the given {@code sql}
*
* @param connection the database connection to use
* @param sql the sql statement to run
* @throws SQLException if error occurred while executing the given {@code sql}
* @since 2.8.0
*/
public static void execute(final Connection connection, final String sql) throws SQLException {
try (PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
preparedStatement.execute();
}
}
/**
* Executes (update) and closes the given {@code preparedStatement}.
*
* @param preparedStatement the statement that will be executed and immediately closed
* @throws SQLException if error occurred while executing the given {@code preparedStatement}
* @see PreparedStatement#close()
* @see PreparedStatement#executeUpdate()
* @deprecated (2.8.0) replaced by {@link #executeUpdate}
*/
@Deprecated
public static void executeUpdateAndClose(PreparedStatement preparedStatement)
throws SQLException {
try {
preparedStatement.executeUpdate();
} finally {
try {
preparedStatement.close();
} catch (SQLException e) {
LOGGER.debug(e.getMessage(), e);
}
}
}
/**
* Utility function for executing an update {@code sql} statement
*
* @param connection the database connection to use
* @param sql the sql statement to run
* @throws SQLException if error occurred while executing the given {@code sql}
* @since 2.8.0
*/
public static void executeUpdate(final Connection connection, final String sql)
throws SQLException {
try (PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
preparedStatement.executeUpdate();
}
}
}