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JAVA-13856 Create new security-modules (#12622)

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This commit is contained in:
anuragkumawat
2022-08-20 13:47:25 +05:30
committed by GitHub
parent b38eb760d1
commit 14c998c3ac
237 changed files with 1420 additions and 1392 deletions
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security-modules/sql-injection-samples/src/main/java/com/baeldung/examples/security/sql/Account.java
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/**
*
*/
package com.baeldung.examples.security.sql;
import java.math.BigDecimal;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
import lombok.Data;
/**
* @author Philippe
*
*/
@Entity
@Table(name="Accounts")
@Data
public class Account {
@Id
@GeneratedValue(strategy=GenerationType.IDENTITY)
private Long id;
private String customerId;
private String accNumber;
private String branchId;
private BigDecimal balance;
}
security-modules/sql-injection-samples/src/main/java/com/baeldung/examples/security/sql/AccountDAO.java
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/**
*
*/
package com.baeldung.examples.security.sql;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.AbstractMap;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import javax.persistence.TypedQuery;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Order;
import javax.persistence.criteria.Root;
import javax.persistence.metamodel.SingularAttribute;
import javax.sql.DataSource;
import org.springframework.stereotype.Component;
/**
* @author Philippe
*
*/
@Component
public class AccountDAO {
private final DataSource dataSource;
private final EntityManager em;
public AccountDAO(DataSource dataSource, EntityManager em) {
this.dataSource = dataSource;
this.em = em;
}
/**
* Return all accounts owned by a given customer,given his/her external id
*
* @param customerId
* @return
*/
public List<AccountDTO> unsafeFindAccountsByCustomerId(String customerId) {
String sql = "select " + "customer_id,acc_number,branch_id,balance from Accounts where customer_id = '" + customerId + "'";
try (Connection c = dataSource.getConnection();
ResultSet rs = c.createStatement()
.executeQuery(sql)) {
List<AccountDTO> accounts = new ArrayList<>();
while (rs.next()) {
AccountDTO acc = AccountDTO.builder()
.customerId(rs.getString("customer_id"))
.branchId(rs.getString("branch_id"))
.accNumber(rs.getString("acc_number"))
.balance(rs.getBigDecimal("balance"))
.build();
accounts.add(acc);
}
return accounts;
} catch (SQLException ex) {
throw new RuntimeException(ex);
}
}
/**
* Return all accounts owned by a given customer,given his/her external id - JPA version
*
* @param customerId
* @return
*/
public List<AccountDTO> unsafeJpaFindAccountsByCustomerId(String customerId) {
String jql = "from Account where customerId = '" + customerId + "'";
TypedQuery<Account> q = em.createQuery(jql, Account.class);
return q.getResultList()
.stream()
.map(a -> AccountDTO.builder()
.accNumber(a.getAccNumber())
.balance(a.getBalance())
.branchId(a.getAccNumber())
.customerId(a.getCustomerId())
.build())
.collect(Collectors.toList());
}
/**
* Return all accounts owned by a given customer,given his/her external id
*
* @param customerId
* @return
*/
public List<AccountDTO> safeFindAccountsByCustomerId(String customerId) {
String sql = "select customer_id, branch_id,acc_number,balance from Accounts where customer_id = ?";
try (Connection c = dataSource.getConnection(); PreparedStatement p = c.prepareStatement(sql)) {
p.setString(1, customerId);
ResultSet rs = p.executeQuery();
List<AccountDTO> accounts = new ArrayList<>();
while (rs.next()) {
AccountDTO acc = AccountDTO.builder()
.customerId(rs.getString("customerId"))
.branchId(rs.getString("branch_id"))
.accNumber(rs.getString("acc_number"))
.balance(rs.getBigDecimal("balance"))
.build();
accounts.add(acc);
}
return accounts;
} catch (SQLException ex) {
throw new RuntimeException(ex);
}
}
/**
* Return all accounts owned by a given customer,given his/her external id - JPA version
*
* @param customerId
* @return
*/
public List<AccountDTO> safeJpaFindAccountsByCustomerId(String customerId) {
String jql = "from Account where customerId = :customerId";
TypedQuery<Account> q = em.createQuery(jql, Account.class)
.setParameter("customerId", customerId);
return q.getResultList()
.stream()
.map(a -> AccountDTO.builder()
.accNumber(a.getAccNumber())
.balance(a.getBalance())
.branchId(a.getAccNumber())
.customerId(a.getCustomerId())
.build())
.collect(Collectors.toList());
}
/**
* Return all accounts owned by a given customer,given his/her external id - JPA version
*
* @param customerId
* @return
*/
public List<AccountDTO> safeJpaCriteriaFindAccountsByCustomerId(String customerId) {
CriteriaBuilder cb = em.getCriteriaBuilder();
CriteriaQuery<Account> cq = cb.createQuery(Account.class);
Root<Account> root = cq.from(Account.class);
cq.select(root)
.where(cb.equal(root.get(Account_.customerId), customerId));
TypedQuery<Account> q = em.createQuery(cq);
return q.getResultList()
.stream()
.map(a -> AccountDTO.builder()
.accNumber(a.getAccNumber())
.balance(a.getBalance())
.branchId(a.getAccNumber())
.customerId(a.getCustomerId())
.build())
.collect(Collectors.toList());
}
private static final Set<String> VALID_COLUMNS_FOR_ORDER_BY = Stream.of("acc_number", "branch_id", "balance")
.collect(Collectors.toCollection(HashSet::new));
/**
* Return all accounts owned by a given customer,given his/her external id
*
* @param customerId
* @return
*/
public List<AccountDTO> safeFindAccountsByCustomerId(String customerId, String orderBy) {
String sql = "select " + "customer_id,acc_number,branch_id,balance from Accounts where customer_id = ? ";
if (VALID_COLUMNS_FOR_ORDER_BY.contains(orderBy)) {
sql = sql + " order by " + orderBy;
} else {
throw new IllegalArgumentException("Nice try!");
}
try (Connection c = dataSource.getConnection(); PreparedStatement p = c.prepareStatement(sql)) {
p.setString(1, customerId);
ResultSet rs = p.executeQuery();
List<AccountDTO> accounts = new ArrayList<>();
while (rs.next()) {
AccountDTO acc = AccountDTO.builder()
.customerId(rs.getString("customerId"))
.branchId(rs.getString("branch_id"))
.accNumber(rs.getString("acc_number"))
.balance(rs.getBigDecimal("balance"))
.build();
accounts.add(acc);
}
return accounts;
} catch (SQLException ex) {
throw new RuntimeException(ex);
}
}
private static final Map<String,SingularAttribute<Account,?>> VALID_JPA_COLUMNS_FOR_ORDER_BY = Stream.of(
new AbstractMap.SimpleEntry<>(Account_.ACC_NUMBER, Account_.accNumber),
new AbstractMap.SimpleEntry<>(Account_.BRANCH_ID, Account_.branchId),
new AbstractMap.SimpleEntry<>(Account_.BALANCE, Account_.balance)
)
.collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
/**
* Return all accounts owned by a given customer,given his/her external id
*
* @param customerId
* @return
*/
public List<AccountDTO> safeJpaFindAccountsByCustomerId(String customerId, String orderBy) {
SingularAttribute<Account,?> orderByAttribute = VALID_JPA_COLUMNS_FOR_ORDER_BY.get(orderBy);
if ( orderByAttribute == null) {
throw new IllegalArgumentException("Nice try!");
}
CriteriaBuilder cb = em.getCriteriaBuilder();
CriteriaQuery<Account> cq = cb.createQuery(Account.class);
Root<Account> root = cq.from(Account.class);
cq.select(root)
.where(cb.equal(root.get(Account_.customerId), customerId))
.orderBy(cb.asc(root.get(orderByAttribute)));
TypedQuery<Account> q = em.createQuery(cq);
return q.getResultList()
.stream()
.map(a -> AccountDTO.builder()
.accNumber(a.getAccNumber())
.balance(a.getBalance())
.branchId(a.getAccNumber())
.customerId(a.getCustomerId())
.build())
.collect(Collectors.toList());
}
/**
* Invalid placeholder usage example
*
* @param tableName
* @return
*/
public Long wrongCountRecordsByTableName(String tableName) {
try (Connection c = dataSource.getConnection(); PreparedStatement p = c.prepareStatement("select count(*) from ?")) {
p.setString(1, tableName);
ResultSet rs = p.executeQuery();
rs.next();
return rs.getLong(1);
} catch (SQLException ex) {
throw new RuntimeException(ex);
}
}
/**
* Invalid placeholder usage example - JPA
*
* @param tableName
* @return
*/
public Long wrongJpaCountRecordsByTableName(String tableName) {
String jql = "select count(*) from :tableName";
TypedQuery<Long> q = em.createQuery(jql, Long.class)
.setParameter("tableName", tableName);
return q.getSingleResult();
}
}
security-modules/sql-injection-samples/src/main/java/com/baeldung/examples/security/sql/AccountDTO.java
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package com.baeldung.examples.security.sql;
import java.math.BigDecimal;
import lombok.Builder;
import lombok.Data;
@Data
@Builder
public class AccountDTO {
private String customerId;
private String accNumber;
private String branchId;
private BigDecimal balance;
}
security-modules/sql-injection-samples/src/main/java/com/baeldung/examples/security/sql/SqlInjectionSamplesApplication.java
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package com.baeldung.examples.security.sql;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class SqlInjectionSamplesApplication {
public static void main(String[] args) {
SpringApplication.run(SqlInjectionSamplesApplication.class, args);
}
}
security-modules/sql-injection-samples/src/main/resources/application.properties
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spring.data.jpa.repositories.bootstrap-mode=default
security-modules/sql-injection-samples/src/main/resources/logback.xml
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<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
</pattern>
</encoder>
</appender>
<root level="INFO">
<appender-ref ref="STDOUT" />
</root>
</configuration>