Re: Apache Tomcat 8.5.4 question

[Johanes Soetanto]

On 27 Aug 2016 10:43 pm, "Christopher Schultz" 
wrote:
>
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA256
>
> Jorge,
>
> On 8/26/16 10:26 PM, Jorge Alfonso wrote:
> > Dear Sirs
> >
> > I configured and started Tomcat Server on Windows 2008-R12 Server.
> >
> > Compiled and deployed a Java Vaadin Web application that I just
> > started to program 2 months ago. My experience with Vaadin is only
> > 2 months and the Tomcat Server only 2 days. I am a newbie learning
> > Java, Vaadin and Tomcat, but willing to investigate and learn
> >
> > The application starts just fine and runs the login and executes
> > the main menu all the time, it does not matter how many sessions or
> > where from, remote systems or localhost.
> >
> > The only session or execution that allows running options from the
> > Menu is the first one. all the other sessions are not getting
> > displayed the forms and the information.

Have the application been tested on other Tomcat version? E.g. 7.x
You may want to change log configuration to find what happened when you try
to access the form etc since Vaadin allows you to debug your application on
some IDE.

>
> So, the main menu works for everyone, but the other stuff only works
> properly for the first user to login? What if that user logs out, then
> logs back in again? Does it work again for that user, or is it
> literally the *first session* that works, and none others work?
>
> > I have investigated this behavior on Google and Apache but
> > unfortunately there is nothing that I can use to properly guide my
> > efforts.
> >
> > I need to isolate if this could be a parameter or configuration
> > missing in Tomcat or this is a Vaadin Framework problem with
> > session handling or the like.
> >
> > I do not want to overwhelm you initially with configuration in
> > Tomcat, logs or console file, unless you want me to submit them
>
> I have no personal experience with Vaadin, so I'm probably going to
> ask a lot of dumb questions.
>
> First of all, have you personally written code to access the
> HttpSession? Can you give us an example?
>
> - -chris
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How to properly map a filter in tomcat embedded

[John D. Ament]

Hi,

I have this pretty straight forward case of starting an instance of tomcat
and bringing in a filter.

Tomcat tomcat = new Tomcat();
tomcat.setPort(8080);
File base = new File(".");
Context ctx = tomcat.addContext("", base.getAbsolutePath());
String filterName = "Default";
FilterDef filterDef = new FilterDef();
filterDef.setFilterName(filterName);
filterDef.setFilterClass(DefaultFilter.class.getName());
ctx.addFilterDef(filterDef);

FilterMap mapping = new FilterMap();
mapping.setFilterName(filterName);
mapping.addURLPattern("/*");
ctx.addFilterMap(mapping);
tomcat.start();
tomcat.getServer().await();
Thread.sleep(6);

My filter's pretty boring, but here it is

public class DefaultFilter implements Filter{
@Override
public void init(FilterConfig filterConfig) throws ServletException {

}

@Override
public void doFilter(ServletRequest servletRequest, ServletResponse
servletResponse, FilterChain filterChain) throws IOException,
ServletException {
servletResponse.getWriter().println("Hello, world!");
}

@Override
public void destroy() {

}
}

When starting this up (Just running in a plain JUnit test), the container
is running however making requests to localhost:8080/ just result in
404's.  I'd expect my filter to handle those requests.

When using a servlet, its perfectly fine.

I tried it on both 8.5.4 and 8.0.30.

Any ideas?

John

cookie-related regression in Tomcat 8.5?

[Mike Wertheim]

I've found a difference in behavior between Tomcat 8.0.33 and Tomcat 8.5.4.

Here's the setup...

I have some Tomcat servers behind an F5 load balancer.  There are two
top-level domains (which I'll call domain1.com and domain2.com) pointing to
the load balancer.  In addition, there is a separate server running PHP.
There is a top-level domain (which I'll call domain3.com) that points to
the PHP server.  So www.domain3.com goes to the PHP server.  But we use DNS
to point a subdomain of domain3.com (let's call it sub.domain3.com) which
points to the Tomcat servers via the load balancer.

The Java app that's running on Tomcat sets some cookies.  The cookie's
domain is set by doing something like cookie.setDomain(domain), where
"domain" is based on the value of request.getServerName().

The bug that Tomcat 8.5.4 exhibits is: Chrome and Safari refuse to set the
cookie when the site is accessed via http://sub.domain3.com.

The cookies work fine in each of the following scenarios:
- It works fine when the Tomcat version is 8.0.33
- It works fine with Firefox
- It works fine when the site is accessed by either domain1.com or
domain2.com

The failure only happens with the combination of: Tomcat 8.5.4, the browser
is Chrome or Safari, and the site is accessed via http://sub.domain3.com.

This all happens using regular (non-SSL) http.

I've attached server.xml and context.xml.







WEB-INF/web.xml
${catalina.base}/conf/web.xml








  
  
  
  

  
  



  

  
  
  







  
  

  
  
		
  

  


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Re: 自动: SuTing Chen 已离开办公室 (返回日期 2016-11-12)

[Mark Thomas]

On 27/08/2016 13:48, Christopher Schultz wrote:
> All,
> 
> CC'ing markt, since he's both Tomcat PMC and INFRA.



> This is an out-of-office reply. Isn't there a way to have the mailing
> list reject (or ignore) messages with the following SMTP headers?
> 
> Auto-Submitted: auto-generated
> Auto-Submitted: auto-repllied

The message was sent to you personally, not the mailing list. You'd need
to configure and appropriate filter on your client / mail server
depending on your personal config.

These responses do occasionally make it to the list but not often enough
(yet) that I've felt the need to do anything about it.

Mark

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Re: How to set a virtual directory mapping

[Christopher Schultz]

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Fung,

On 8/26/16 12:58 AM, Fung wrote:
> How to set a virtual directory that I can map a virtual path in my 
> web-app to local physical path.
> 
> OS:window 7 Tomcat version:7.057

So you want a physical path like D:\public\files to map-into your URL
space like http://example.com/myapp/files?

Try something like this in your META-INF/context.xml file:


  ...


Ref: http://tomcat.apache.org/tomcat-7.0-doc/config/context.html
(search for "aliases").

If/when you upgrade to Tomcat 8, you'll want to replace "aliases" with
something like this:


  
 
  
  ...


Hope that helps,
- -chris
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Re: 自动: SuTing Chen 已离开办公室 (返回日期 2016-11-12)

[Christopher Schultz]

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All,

CC'ing markt, since he's both Tomcat PMC and INFRA.

On 8/26/16 10:01 AM, chensut...@xmholder.com wrote:
> 
> 在 2016-11-12 之前，我离开办公室。
> 
> 我在6/8至11/12离开办公室，如有特急的可以联系林小姐 l...@xmholder.com，带来不 便请谅解！
> 
> 
> 注意: 这是对您消息的自动答复  "Re: Custom Authentication in Tomcat 8.5.4 using
> JDK 1.8.0_92?" 发送日期 2016/8/26 20:07:53.
> 
> 此通知是此用户离开期间您将收到的唯一通知。 
> -
>
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To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
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This is an out-of-office reply. Isn't there a way to have the mailing
list reject (or ignore) messages with the following SMTP headers?

Auto-Submitted: auto-generated
Auto-Submitted: auto-repllied

?

- -chris
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Re: Apache Tomcat 8.5.4 question

[Christopher Schultz]

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Jorge,

On 8/26/16 10:26 PM, Jorge Alfonso wrote:
> Dear Sirs
> 
> I configured and started Tomcat Server on Windows 2008-R12 Server.
> 
> Compiled and deployed a Java Vaadin Web application that I just
> started to program 2 months ago. My experience with Vaadin is only
> 2 months and the Tomcat Server only 2 days. I am a newbie learning
> Java, Vaadin and Tomcat, but willing to investigate and learn
> 
> The application starts just fine and runs the login and executes
> the main menu all the time, it does not matter how many sessions or
> where from, remote systems or localhost.
> 
> The only session or execution that allows running options from the
> Menu is the first one. all the other sessions are not getting
> displayed the forms and the information.

So, the main menu works for everyone, but the other stuff only works
properly for the first user to login? What if that user logs out, then
logs back in again? Does it work again for that user, or is it
literally the *first session* that works, and none others work?

> I have investigated this behavior on Google and Apache but
> unfortunately there is nothing that I can use to properly guide my
> efforts.
> 
> I need to isolate if this could be a parameter or configuration
> missing in Tomcat or this is a Vaadin Framework problem with
> session handling or the like.
> 
> I do not want to overwhelm you initially with configuration in
> Tomcat, logs or console file, unless you want me to submit them

I have no personal experience with Vaadin, so I'm probably going to
ask a lot of dumb questions.

First of all, have you personally written code to access the
HttpSession? Can you give us an example?

- -chris
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Re: Create new MySQL connections if read-only status is detected - AWS RDS failover

[Christopher Schultz]

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David,

On 8/26/16 2:45 PM, David Day wrote:
>> How, in general, would you test to see if the database is in
>> read-only mode?
>> 
>> - -chris
> 
> This is what I'm hoping to learn, and perhaps is a question better
> for a MySQL list.
> 
> I've found settings to add such as 'autoReconnect' and 
> 'failOverReadOnly' for more classic cases using multiple MySQL
> servers to connect.  In my case, there is only one url, where AWS
> changes the CNAME record of the url after a failover.  This may
> still be a solution, to simply retry the same url until a limit
> reached, or the connection is no longer read-only.

I think AWS/RDS is a better resource, here... this seems like it
should have been a solved problem already.

- -chris
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