未经授权在Tomcat 7上进行身份验证

时间:2011-10-13 14:52:45

标签: sql authentication tomcat jdbcrealm

我有一个令人讨厌的错误,我很久都无法解决。我最近介绍了基于容器的安全性并尝试实现它。我已将域配置如下:

<Realm className="org.apache.catalina.realm.JDBCRealm" 
debug="99" 
driverName="com.mysql.jdbc.Driver" 
connectionURL="jdbc:mysql://127.0.0.1:3306/identify" 
connectionName="adm" connectionPassword="pw" 
userTable="users" userNameCol="login" 
userCredCol="password" 
allRolesMode="authOnly" /> 
</Realm>

不幸的是我无法登录。日志错误消息是:

SEVERE: Exception performing authentication
    java.sql.SQLException: You have an error in your SQL syntax; 
    check the manual that corresponds to your MySQL server version 
    for the right syntax to use near 'null WHERE login = 'user1'' at line 1
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2928)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1571)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1666)
at com.mysql.jdbc.Connection.execSQL(Connection.java:2994)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:936)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1030)
at org.apache.catalina.realm.JDBCRealm.getRoles(JDBCRealm.java:640)
at org.apache.catalina.realm.JDBCRealm.authenticate(JDBCRealm.java:430)
at org.apache.catalina.realm.JDBCRealm.authenticate(JDBCRealm.java:355)
at org.apache.catalina.realm.CombinedRealm.authenticate(CombinedRealm.java:146)
at org.apache.catalina.realm.LockOutRealm.authenticate(LockOutRealm.java:180)
at org.apache.catalina.authenticator.FormAuthenticator.authenticate(FormAuthenticator.java:282)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:440)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:851)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:278)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:300)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:636)

请注意用户名周围的''这是正确的吗?

如您所见,我也使用allRolesMode="authOnly",因为我不需要此功能,而且数据库没有,也不会有用户角色的额外列(如果赢了则毫无意义使用它比每个用户在本专栏中都具有相同的价值 - 大量浪费资源。)。

服务器是Tomcat 7.0.19

2 个答案:

答案 0 :(得分:1)

如果userRoleTable也必须设置roleNameColallRolesMode="authOnly"属性。如果没有它们,SQL查询将包含字符串null(正如您在异常消息中看到的那样)。 userRoleTable的值可以与userTable的值相同,roleNameCol也可以与userNameCol相同。

一个简单的解决方法是创建一个模拟roles表的SQL视图:

CREATE VIEW roles (username, role)
AS SELECT username, 'user' FROM users;

一个解决方案:

<Realm className="org.apache.catalina.realm.JDBCRealm" 
    driverName="com.mysql.jdbc.Driver" 
    connectionURL="jdbc:mysql://127.0.0.1:3306/test" 
    connectionName="..." connectionPassword="..." 
    userTable="users" userNameCol="username" userCredCol="password" 
    userRoleTable="users" roleNameCol="username"
/> 

(令人惊讶的是它没有任何allRolesMode。)

所需的web.xml摘要:

<security-constraint>
    <web-resource-collection>
        <web-resource-name>protected zone</web-resource-name>
        <url-pattern>/prot/*</url-pattern>
    </web-resource-collection>
    <auth-constraint>
        <role-name>*</role-name>
    </auth-constraint>
</security-constraint>

<security-role>
     <role-name>*</role-name>
</security-role>

(注意:假设您有100万用户,users表中的一个新属性,其中一百万user\0字符串仅花费大约5兆字节。我同意这不是一个美丽的解决方案,但现在并不是无法容忍的。)

答案 1 :(得分:0)

Tomcat 7.0.27.0JDK 1.6

我只使用tomcat进行身份验证和not for authorization

以下是设置

context.xml

<Realm className="org.apache.catalina.realm.JDBCRealm"  
       connectionName="login"  
       connectionPassword="password"    
       connectionURL="jdbc:oracle:thin:@127.0.0.1:1521:authdb"    
       driverName="oracle.jdbc.OracleDriver"        
       userTable="appusers"  
       userNameCol="username"              
       userCredCol="password"  
       allRolesMode="authOnly"/>  

的web.xml

<security-constraint>  
    <web-resource-collection>  
        <web-resource-name>Protected Area</web-resource-name>  
        <url-pattern>/modules/*</url-pattern>  
        <url-pattern>/index.jsp</url-pattern>  
    </web-resource-collection>  
    <auth-constraint>
        <role-name>*</role-name>    
    </auth-constraint>
</security-constraint>     
<!--
security-role>
    <role-name>user</role-name>
security-role>
-->

我通过从web.xml&amp;
中删除<security-role>块来实现它 将auth-contraint的角色名称设为*

如果从auth-contraint删除security-contraint阻止,则不会调用Web上下文身份验证!!