https://issues.apache.org/bugzilla/show_bug.cgi?id=48381
Summary: Hostnames in the <Host> section are converted to lower
case
Product: Tomcat 6
Version: 6.0.20
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Catalina
AssignedTo: [email protected]
ReportedBy: [email protected]
Created an attachment (id=24700)
--> (https://issues.apache.org/bugzilla/attachment.cgi?id=24700)
Webapp for demonstrating the bug
Overview:
If the attribute name in the <Host> configuration contains upper case letters
and you use a case-sensitive file system than the configuration files are
looked up in the wrong directory (hostname converted to lower case)
RFC 1035 (DNS) says in section 2.3.1.:
Note that while upper and lower case letters are allowed in domain
names, no significance is attached to the case. That is, two names with
the same spelling but different case are to be treated as if identical.
Let us suppose we have this configuration in the server.xml:
<Engine name="Catalina" defaultHost="Tux">
<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
resourceName="UserDatabase"/>
<Host name="Tux" appBase="webapps"
unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">
</Host>
</Engine>
The expected behavior is, that the configuration files are searched under
$CATALINA_BASE/conf/[engine_name]/[host_name] which is in our case
$CATALINA_BASE/conf/Catalina/Tux
Instead Tomcat converts silently Tux to tux and searches under
$CATALINA_BASE/conf/Catalina/tux
Steps to reproduce:
1. Configure the server.xml with a hostname which contains upper case letters.
See above.
2. Deploy the webapp tomcatbug
cd webapps
unzip tomcatbug.zip
cd tomcatbug
ant all
3. Create a file $CATALINA_BASE/conf/Catalina/Tux/tomcatbug.xml with this
content
<Context>
<Resource name="bean/MyBeanFactory" auth="Container"
type="MyBean"
factory="org.apache.naming.factory.BeanFactory"
bar="23"/>
</Context>
4. Start tomcat and browse to http://Tux:8080/tomcatbug/TomcatBug
Actual result:
<html>
<head>
<title>Tomcat Bug</title>
</head>
<body>
<h1>Tomcat Bug</h1>
javax.naming.NamingException: Cannot create resource instance
at
org.apache.naming.factory.ResourceEnvFactory.getObjectInstance(ResourceEnvFactory.java:114)
at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:304)
at org.apache.naming.NamingContext.lookup(NamingContext.java:793)
at org.apache.naming.NamingContext.lookup(NamingContext.java:140)
at org.apache.naming.NamingContext.lookup(NamingContext.java:781)
at org.apache.naming.NamingContext.lookup(NamingContext.java:153)
at TomcatBug.doGet(TomcatBug.java:29)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
at java.lang.Thread.run(Thread.java:619)
</body>
</html>
Expected result:
<html>
<head>
<title>Tomcat Bug</title>
</head>
<body>
<h1>Tomcat Bug</h1>
foo = Default Foo, bar = 23
</body>
</html>
As a workaround you should not use upper case letters in hostnames.
This should be written in the documentation.
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