If语句的评估结果不一致

Question

这是我在copy-acct-to-home-server中部署的代码段。基本上检查用户名是否带有“ @”符号...如果是，则从比较NAS-IP-Address的mysql表中提取寻线组。最后，如果查询结果不为null，则它将更新Proxy-to-Realm。

if(request:User-Name =~ /@/){
                            update control {
                                    SQLQueryResult := "%{sql:SELECT `groupname` FROM `radhuntgroup` WHERE nasipaddress='%{NAS-IP-Address}'}" }
                            if( %{control:SQLQueryResult} != '') {
                                    update control {
                                    Proxy-To-Realm := SQLQueryResult } }
                    }

此代码无法正常运行。这是针对真假条件的调试消息摘要结果

当从数据库中提取某些值时，应该为代理到领域分配适当的值（但是它不起作用）

 Acct-Session-Id = "5CD8CA8B-0012B000"
    Framed-IP-Address = host.ip.address.local
    Acct-Multi-Session-Id = "24c9a18012b85c514f44f9715cd8ca8b085b"
    Acct-Link-Count = 1
    Acct-Status-Type = Start
    Acct-Authentic = RADIUS
    User-Name = "[email protected]"
    NAS-IP-Address = some.ip.add.NAS
    NAS-Identifier = "CustomNASID"

   .........



    --> [email protected]
(6)         SQL-User-Name set to '[email protected]'
rlm_sql (sql): Reserved connection (5)
(6)         EXPAND /var/log/freeradius/sqllog.sql
(6)            --> /var/log/freeradius/sqllog.sql
(6)         Executing select query: SELECT `groupname` FROM `radhuntgroup` WHERE nasipaddress='some.ip.add.NAS'
rlm_sql (sql): Released connection (5)
(6)         EXPAND %{sql:SELECT `groupname` FROM `radhuntgroup` WHERE nasipaddress='%{NAS-IP-Address}'}
(6)            --> customRealm
(6)         SQLQueryResult := customRealm
(6)       } # update control = noop
(6)       if ( %{control:SQLQueryResult} != '') {
(6)       if ( %{control:SQLQueryResult} != '')  -> TRUE
(6)       if ( %{control:SQLQueryResult} != '')  {
(6)         update control {
(6)           No attributes updated
(6)         } # update control = noop
(6)       } # if ( %{control:SQLQueryResult} != '')  = noop
(6)     } # if (request:User-Name =~ /@/) = noop
(6)   } # preacct = ok

从日志中可以看出，即使两个if条件都为真（用户名包含@并且SQLQueryResult不为null），也不会使用从数据库中获取的值更新属性proxy-to-realm。

即使在没有从数据库中获取任何值的情况下，条件似乎都为真。这是日志片段。

 Acct-Session-Id = "5CD8C9F7-C1DA2D04"
    Framed-IP-Address = host.ip.address.local
    Acct-Multi-Session-Id = "441e98b16388185680b4a7355cd8c9f7000a"
    Acct-Link-Count = 5
    Acct-Status-Type = Interim-Update
    Acct-Authentic = RADIUS
    User-Name = "user@somedomain"
    NAS-IP-Address = some.ip.address.nas


   ...........



    Executing section preacct from file /etc/freeradius/3.0/sites-enabled/copy-acct-to-home-server
(8)   preacct {
(8)     [preprocess] = ok
(8)     if (request:User-Name =~ /@/){
(8)     if (request:User-Name =~ /@/) -> TRUE
(8)     if (request:User-Name =~ /@/) {
(8)       update control {
(8)         EXPAND %{User-Name}
(8)            --> [email protected]
(8)         SQL-User-Name set to '[email protected]'
rlm_sql (sql): Reserved connection (6)
(8)         EXPAND /var/log/freeradius/sqllog.sql
(8)            --> /var/log/freeradius/sqllog.sql
(8)         Executing select query: SELECT `groupname` FROM `radhuntgroup` WHERE nasipaddress='nas.ip.address.local'
(8)         SQL query returned no results
rlm_sql (sql): Released connection (6)
(8)         EXPAND %{sql:SELECT `groupname` FROM `radhuntgroup` WHERE nasipaddress='%{NAS-IP-Address}'}
(8)            --> 
(8)         SQLQueryResult := 
(8)       } # update control = noop
(8)       if ( %{control:SQLQueryResult} != '') {
(8)       if ( %{control:SQLQueryResult} != '')  -> TRUE
(8)       if ( %{control:SQLQueryResult} != '')  {
(8)         update control {
(8)           No attributes updated
(8)         } # update control = noop
(8)       } # if ( %{control:SQLQueryResult} != '')  = noop
(8)     } # if (request:User-Name =~ /@/) = noop
(8)   } # preacct = ok
奇怪的是，尽管它没有从数据库中获取任何值如果条件（SQLQueryResult！=''）在这种情况下应该为假，则第二个条件被评估为true。

属性SQLQueryResult已在字典中定义为字符串。

我不确定我在这里缺少什么...似乎很简单。向专家寻求帮助。

这是我在copy-acct-to-home-server中部署的代码段。基本上检查用户名是否带有“ @”符号...如果是，则从比较NAS-IP-Address的mysql表中提取寻线组。...

Answer 1

这里有几个问题。