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From Mark Hoebeke <mark.hoeb...@sb-roscoff.fr>
Subject Re: Configuring a context specific JNDI/JDBC Realm
Date Tue, 03 May 2011 07:12:37 GMT
Thank you for your quick reply. I made the changes you suggested (and
had to re-read some configuration HOWTOs) and the application behaves as
expected.

Thanks again.

Mark


Le 02/05/2011 18:22, Mark Thomas a écrit :
> On 02/05/2011 17:11, Mark Hoebeke wrote:
>> So, I'm using Tomcat 6.0.26 and I'm developing an application relying on
>> a Realm to authenticate users. The Realm is a DataSourceRealm pointing
>> to a JNDI Resource declared in the ${catalina.home}/conf/context.xml as
>> follows :
> 
> You almost certainly don't want to do that. Entries in that file provide
> defaults for *every* web application. You have just exposed this
> datasource to every context on the Tomcat instance.
> 
>> <Resource name="jdbc/mydb"
>> 	auth="Container"
>> 	type="javax.sql.DataSource"
>> 	driverClassName="org.postgresql.Driver"
>> 	url="jdbc:postgresql://dbhost:5437/dbname"
>> 	username="dbuser" password="dbpasswd"/>
>>
>> This declaration is fully functional as the same application relies on
>> it for non-authentication related uses that actually work.
>>
>> I've tried putting the Realm declaration in the META-INF/context.xml
>> file of my application, as follows :
>>
>>
>> <Context path="/myapp">
>>
>> 	<Realm className="org.apache.catalina.realm.DataSourceRealm"
>> auth="Container" debug="99" dataSourceName="jdbc/mydb" userTable="users"
>> userRoleTable="roles" userNameCol="name" userCredCol="password"
>> roleNameCol="role" digest="SHA-1" />
>>
>>
>> </Context>
>>
>> (As I'm (re)deploying the app quite frequently I cannot put this
>> declaration in the ${catalina.home}/conf/server.xml file, if I'm right).
> 
> Wrong. There is nothing stopping you defining the resource in
> server.xml. The following changes should fix this:
> - move the resource definition to server.xml (under GlobalResources)
> - add a resource link to META-INF/context.xml that is included with the WAR
> - leave the Realm in META-INF/context.xml
> 
> If you do decide to more the Resource definition to META-INF/context.xml
> rather than server.xml then you'll need to add the
> localDataSource="true" the the Realm definition.
> 
> Mark
> 
> 
> 
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