Dotcms Dynamic Plugin with Filters

gsuj...@gmail.com

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Aug 22, 2017, 1:31:56 PM8/22/17

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Hi,

I am developing a dynamic plugin in dotcms using Filters to check the form submissions . Once the form is submitted it is redirecting to the 404 page error instead returning to the form .

Can anyone help me in this scenario,will the chain.doFilter work in dynamic plugins .I have used the example filter plugin provided by the dotcms. Following is the

code used in the activator

package com.dotmarketing.osgi.servlet;

import com.dotcms.repackage.org.apache.felix.http.api.ExtHttpService;

import com.dotcms.repackage.org.osgi.framework.BundleContext;

import com.dotcms.repackage.org.osgi.framework.ServiceReference;

import com.dotcms.repackage.org.osgi.util.tracker.ServiceTracker;

import com.dotmarketing.filters.CMSFilter;

import com.dotmarketing.osgi.GenericBundleActivator;

import com.dotmarketing.osgi.service.HelloWorld;

public class Activator extends GenericBundleActivator {

private HelloWorldServlet simpleServlet;

private ExtHttpService httpService;

private ServiceTracker helloWorldServiceTracker;

@SuppressWarnings ("unchecked")

public void start ( BundleContext context ) throws Exception {

//Initializing services...

initializeServices( context );

//Create new ServiceTracker for HelloWorldService via HelloWorld interface

helloWorldServiceTracker = new ServiceTracker( context, HelloWorld.class.getName(), null );

//Service reference to ExtHttpService that will allows to register servlets and filters

ServiceReference sRef = context.getServiceReference( ExtHttpService.class.getName() );

if ( sRef != null ) {

helloWorldServiceTracker.addingService( sRef );

httpService = (ExtHttpService) context.getService( sRef );

try {

//Registering a simple test servlet

simpleServlet = new HelloWorldServlet( helloWorldServiceTracker );

httpService.registerServlet( "/helloworld", simpleServlet, null, null );

//Registering a simple test filter

httpService.registerFilter( new TestFilter( "testFilter" ), "/helloworld/.*", null, 100, null );

} catch ( Exception e ) {

e.printStackTrace();

}

CMSFilter.addExclude( "/app/helloworld" );

// open service tracker to start tracking

helloWorldServiceTracker.open();

}

public void stop ( BundleContext context ) throws Exception {

//Unregister the servlet

if ( httpService != null && simpleServlet != null ) {

httpService.unregisterServlet( simpleServlet );

}

CMSFilter.removeExclude( "/app/helloworld" );

// close service tracker to stop tracking

helloWorldServiceTracker.close();

}

Nathan Keiter

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Aug 22, 2017, 1:34:09 PM8/22/17

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In the code are you actually performing a redirect or a forward?

https://www.gettysburg.edu

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gsuj...@gmail.com

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Aug 22, 2017, 1:41:22 PM8/22/17

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No, i am not sure how to do that? I tried to use dotcms example plugin "com.dotcms.servlet" as base project

gsuj...@gmail.com

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Aug 22, 2017, 1:41:45 PM8/22/17

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No, i am not sure how to do that? I tried to use dotcms example plugin "com.dotcms.servlet" as base project

Nathan Keiter

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Aug 22, 2017, 1:41:48 PM8/22/17

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This should work:

filterChain.doFilter( httpServletRequest, httpServletResponse );

Sample use case:

[cid:0b79b87a-4738-4dcd-9ab9-84f40c7cc403]

Nathan I. Keiter | Lead Network Applications Programmer | Administrative Advisory Council Member | Benefits Advisory Council Member | I.D.E.A Council Member

Gettysburg College | Information Technology | DataSystems
Campus Box 2453 | 300 North Washington Street | Gettysburg, PA 17325
Phone: 717.337.6993
https://www.gettysburg.edu

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Subject: RE: [dotcms] Dotcms Dynamic Plugin with Filters

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gsuj...@gmail.com

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Aug 22, 2017, 1:48:43 PM8/22/17

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Can you send the Activator class used in the plugin ?? I am using this way in the doFilter Method

Logger.info(this, "Testing for bots");

ValidateForHoneypot validateForHoneyPot = new ValidateForHoneypot();

// Check for honeypot values

if (validateForHoneyPot.isHoneyPotPopulated(request)) {

System.out.println("Hello 5");

Logger.info(this, "Honeypot filter - BOT deteced ");

((HttpServletResponse) response).sendError(HttpServletResponse.SC_NOT_ACCEPTABLE,

"Some of the fields entered are not valid.");

return;

} else {

System.out.println("Hello 6");

// if its not a bot then check for duplicate submissions.

ValidateForDuplicateSubmissions checkDuplicate = new ValidateForDuplicateSubmissions();

if (checkDuplicate.isDuplicateSubmissionMade(request)) {

System.out.println("Hello 7");

Logger.info(this, "Duplicate submissions was made.");

((HttpServletResponse) response).sendError(HttpServletResponse.SC_CONFLICT,

"Duplicate Form Submission: Wait sometime before resubmitting the form.");

return;

}

// Forward the request on

chain.doFilter(request, response);

I have used the above code in the doFilter Method

On Tuesday, 22 August 2017 12:31:56 UTC-5, sujeeth kumar wrote:

Nathan Keiter

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Aug 22, 2017, 1:54:51 PM8/22/17

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Sure, this is the 4.0.1 version of the plugin activator:

[cid:59e9d24b-0be9-441a-b254-f7f7eb52f7b3]

[cid:9861a97b-5745-4019-a973-93f9ef3b732b]

From: dot...@googlegroups.com <dot...@googlegroups.com> on behalf of gsuj...@gmail.com <gsuj...@gmail.com>
Sent: Tuesday, August 22, 2017 1:48 PM
To: dotCMS User Group
Subject: [dotcms] Re: Dotcms Dynamic Plugin with Filters

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Nathan Keiter

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Aug 22, 2017, 1:57:54 PM8/22/17

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Looking at your code these might be the wrong object type:

chain.doFilter(request, response);

You could prepare them ahead of time, or cast them inline, but you need this class type I think:

HttpServletRequest httpServletRequest = (HttpServletRequest) servletRequest;
HttpServletResponse httpServletResponse = (HttpServletResponse) servletResponse;

I could be wrong, but maybe try that?

Nathan I. Keiter | Lead Network Applications Programmer | Administrative Advisory Council Member | Benefits Advisory Council Member | I.D.E.A Council Member
Gettysburg College | Information Technology | DataSystems
Campus Box 2453 | 300 North Washington Street | Gettysburg, PA 17325
Phone: 717.337.6993
https://www.gettysburg.edu
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From: dot...@googlegroups.com <dot...@googlegroups.com> on behalf of gsuj...@gmail.com <gsuj...@gmail.com>
Sent: Tuesday, August 22, 2017 1:48 PM
To: dotCMS User Group
Subject: [dotcms] Re: Dotcms Dynamic Plugin with Filters

hpa...@gmail.com

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Aug 22, 2017, 2:30:02 PM8/22/17

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No, i am not sure how to do that? I tried to use dotcms example plugin
"com.dotcms.servlet" as base project

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gsuj...@gmail.com

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Aug 22, 2017, 2:30:59 PM8/22/17

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I have added the same code as you have suggested but still it redirects to the 404 page .The following is the code added in the Activator Class

WebSecurityFilter websecuirtyFilter = new WebSecurityFilter();

httpService.registerFilter(websecuirtyFilter, "/dotCMS/sendEmail", null, 0, null);

addRewriteRule("/dotCMS/sendEmail","/app/dotCMS/sendEmail","redirect", "WebSecurirtyFilter");

System.out.println("adding rewrite rule....");

NormalRule forwardRule = new NormalRule();

forwardRule.setFrom( "/dotCMS/sendEmail" );

forwardRule.setToType( "forward" );

forwardRule.setTo( "/app/dotCMS/sendeEmail?browser=chrome" );

forwardRule.setName( "WebSecurirtyFilter" );

//Create a Condition for this rule

Condition condition = new Condition();

condition.setName( "user-agent" );

condition.setValue( "Chrome/*.*" );

forwardRule.addCondition( condition );

//Register the tuckey rewrite rule

addRewriteRule( forwardRule );

On Tuesday, 22 August 2017 12:31:56 UTC-5, sujeeth kumar wrote:

Nathan Keiter

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Aug 22, 2017, 2:41:49 PM8/22/17

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Typo? "/app/dotCMS/sendeEmail”

Nathan I. Keiter | Lead Network Applications Programmer | Benefits Advisory Council Member | I.D.E.A Council Member

Gettysburg College | Information Technology | DataSystems
Campus Box 2453 | 300 North Washington Street | Gettysburg, PA 17325
Phone: 717.337.6993

https://www.gettysburg.edu

From: dot...@googlegroups.com [mailto:dot...@googlegroups.com] On Behalf Of gsuj...@gmail.com
Sent: Tuesday, August 22, 2017 2:31 PM
To: dotCMS User Group
Subject: [dotcms] Re: Dotcms Dynamic Plugin with Filters

I have added the same code as you have suggested but still it redirects to the 404 page .The following is the code added in the Activator Class

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gsuj...@gmail.com

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Aug 22, 2017, 2:49:26 PM8/22/17

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It is still redirecting to the 404 page .Is anything else wrong in the implimented logic of the plugin ??

On Tuesday, 22 August 2017 12:31:56 UTC-5, sujeeth kumar wrote:

Nathan Keiter

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Aug 22, 2017, 2:56:19 PM8/22/17

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Add lots of debug code and write to the log.

https://www.gettysburg.edu

From: dot...@googlegroups.com [mailto:dot...@googlegroups.com] On Behalf Of gsuj...@gmail.com
Sent: Tuesday, August 22, 2017 2:49 PM
To: dotCMS User Group
Subject: [dotcms] Re: Dotcms Dynamic Plugin with Filters

It is still redirecting to the 404 page .Is anything else wrong in the implimented logic of the plugin ??

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Nathan Keiter

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Aug 22, 2017, 3:02:15 PM8/22/17

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Also, it looks like you tied a forward and a redirect to the same pattern?

That would conflict internally somewhere I’m thinking.

https://www.gettysburg.edu

From: dot...@googlegroups.com [mailto:dot...@googlegroups.com] On Behalf Of gsuj...@gmail.com
Sent: Tuesday, August 22, 2017 2:49 PM
To: dotCMS User Group
Subject: [dotcms] Re: Dotcms Dynamic Plugin with Filters

It is still redirecting to the 404 page .Is anything else wrong in the implimented logic of the plugin ??

--

gsuj...@gmail.com

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Aug 22, 2017, 3:04:44 PM8/22/17

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We rectified and tried it ,But still it redirects to the 404 page .Below mentioned is the Activator class code

package com.ehc.plugins.dynamic.websecurity.controller;

import com.dotcms.repackage.org.apache.felix.http.api.ExtHttpService;

import com.dotcms.repackage.org.osgi.framework.BundleContext;

import com.dotcms.repackage.org.osgi.framework.ServiceReference;

import com.dotcms.repackage.org.tuckey.web.filters.urlrewrite.Condition;

import com.dotcms.repackage.org.tuckey.web.filters.urlrewrite.NormalRule;

import com.dotmarketing.osgi.GenericBundleActivator;

import com.dotmarketing.util.Logger;

public class Activator extends GenericBundleActivator {

// private HelloWorldServlet simpleServlet;

private ExtHttpService httpService;

@SuppressWarnings("unchecked")

public void start(BundleContext context) throws Exception {

// Initializing services...

initializeServices(context);

Logger.info(this, "Latest Code Deployed ");

System.out.println("Latest Code Deployed ");

System.out

.println("******************************************************************************************");

System.out.println();

System.out

.println("******************************************************************************************");

Logger.info(this, "Activator Start 1");

// Service reference to ExtHttpService that will allows to register

// servlets and filters

@SuppressWarnings("rawtypes")

ServiceReference sRef = context.getServiceReference(ExtHttpService.class.getName());

if (sRef != null) {

Logger.info(this, "Activator Start 2");

// helloWorldServiceTracker.addingService( sRef );

httpService = (ExtHttpService) context.getService(sRef);

try {

Logger.info(this, "Activator Start 3");

// Registering a simple test filter

System.out.println("Hello 2");

System.out.println();

WebSecurityFilter websecuirtyFilter = new WebSecurityFilter();

httpService.registerFilter(websecuirtyFilter, "/dotCMS/sendEmail", null, 0, null);

addRewriteRule("/dotCMS/sendEmail", "/app/dotCMS/sendEmail", "forward", "WebSecurirtyFilter");

System.out.println("adding rewrite rule....");

NormalRule forwardRule = new NormalRule();

forwardRule.setFrom("/dotCMS/sendEmail");

forwardRule.setToType("forward");

forwardRule.setTo("/app/dotCMS/sendeEmail?browser=chrome");

forwardRule.setName("WebSecurirtyFilter");

// Create a Condition for this rule

Condition condition = new Condition();

condition.setName("user-agent");

condition.setValue("Chrome/*.*");

forwardRule.addCondition(condition);

// Register the tuckey rewrite rule

addRewriteRule(forwardRule);

} catch (Exception e) {

Logger.info(this, "Activator Start 3");

System.out.println("Error Page Catch Block");

e.printStackTrace();

}

// open service tracker to start tracking

// helloWorldServiceTracker.open();

}

public void stop(BundleContext arg0) throws Exception {

// TODO Auto-generated method stub

unregisterRewriteRule();

}

On Tuesday, 22 August 2017 12:31:56 UTC-5, sujeeth kumar wrote:

Nathan Keiter

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Aug 22, 2017, 3:11:21 PM8/22/17

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I still see /dotCMS/sendEmail as a “from” in both forwards.

Why two rules?

Also add logging to the Filter class itself.

https://www.gettysburg.edu

From: dot...@googlegroups.com [mailto:dot...@googlegroups.com] On Behalf Of gsuj...@gmail.com
Sent: Tuesday, August 22, 2017 3:05 PM
To: dotCMS User Group
Subject: [dotcms] Re: Dotcms Dynamic Plugin with Filters

We rectified and tried it ,But still it redirects to the 404 page .Below mentioned is the Activator class code

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gsuj...@gmail.com

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Aug 22, 2017, 3:21:12 PM8/22/17

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Tried with 1 rule it redirected to the 404 page .then added 2nd rule still it does the same thing.Even if i add both the rules it is going to 404 page .Not completing the form submission

gsuj...@gmail.com

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Aug 22, 2017, 3:21:35 PM8/22/17

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Added Loggers in the filter class as well

On Tuesday, 22 August 2017 14:11:21 UTC-5, Nathan Keiter wrote:

Nathan Keiter

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Aug 22, 2017, 3:22:38 PM8/22/17

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Oh, right. On success that won't work. You want dotCMS to process the form on success?

Do this:

new WebFormServlet().service( httpServletRequest, httpServletResponse );

Nathan I. Keiter | Lead Network Applications Programmer | Administrative Advisory Council Member | Benefits Advisory Council Member | I.D.E.A Council Member

Gettysburg College | Information Technology | DataSystems
Campus Box 2453 | 300 North Washington Street | Gettysburg, PA 17325
Phone: 717.337.6993
https://www.gettysburg.edu

________________________________
From: dot...@googlegroups.com <dot...@googlegroups.com> on behalf of gsuj...@gmail.com <gsuj...@gmail.com>
Sent: Tuesday, August 22, 2017 3:21 PM
To: dotCMS User Group
Subject: Re: [dotcms] Re: Dotcms Dynamic Plugin with Filters

Added Loggers in the filter class as well

On Tuesday, 22 August 2017 14:11:21 UTC-5, Nathan Keiter wrote:
I still see /dotCMS/sendEmail as a “from” in both forwards.

Why two rules?

Also add logging to the Filter class itself.

Nathan I. Keiter | Lead Network Applications Programmer | Benefits Advisory Council Member | I.D.E.A Council Member
Gettysburg College | Information Technology | DataSystems
Campus Box 2453 | 300 North Washington Street | Gettysburg, PA 17325
Phone: 717.337.6993

https://www.gettysburg.edu<https://www.gettysburg.edu/>

To view this discussion on the web visit https://groups.google.com/d/msgid/dotcms/4d6530a4-ddc4-4901-89d3-f43c5f8fa1af%40googlegroups.com<https://groups.google.com/d/msgid/dotcms/4d6530a4-ddc4-4901-89d3-f43c5f8fa1af%40googlegroups.com?utm_medium=email&utm_source=footer>.

For more options, visit https://groups.google.com/d/optout.

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Nathan Keiter

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Aug 22, 2017, 3:26:12 PM8/22/17

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If you look at the original filter source I posted, you'll see that line and the chain code commented out.

This is because the form servlet endpoints are "outside" the system.

You are already "inside" the system. You can't "bubble up" to an external filter.

So you need to pass directly to the dotCMS core class at this point.

https://www.gettysburg.edu

To view this discussion on the web visit https://groups.google.com/d/msgid/dotcms/1503429755725.27798%40gettysburg.edu.

Nathan Keiter

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Aug 22, 2017, 3:28:42 PM8/22/17

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Again, apologies. That’s my class. Let me get you the source.

https://www.gettysburg.edu

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Sent: Tuesday, August 22, 2017 3:26 PM
To: dot...@googlegroups.com

To view this discussion on the web visit https://groups.google.com/d/msgid/dotcms/cf74de2f6bce46c4beed3ee91ec1992f%40exch13c.ms.gettysburg.edu.

Nathan Keiter

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Aug 22, 2017, 3:31:31 PM8/22/17

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Source of WebFormServlet().service( request, response );

Basically you have to "simulate" the core struts actions. (Since we are already "inside" as I explained earlier.)

[cid:e71f5e84-b45b-4dd3-8156-0bb41149099a]

From: dot...@googlegroups.com <dot...@googlegroups.com> on behalf of Nathan Keiter <nke...@gettysburg.edu>
Sent: Tuesday, August 22, 2017 3:28 PM

To: dot...@googlegroups.com
Subject: RE: [dotcms] Re: Dotcms Dynamic Plugin with Filters

https://www.gettysburg.edu<https://www.gettysburg.edu/>

From: dot...@googlegroups.com [mailto:dot...@googlegroups.com] On Behalf Of Nathan Keiter
Sent: Tuesday, August 22, 2017 3:26 PM
To: dot...@googlegroups.com
Subject: RE: [dotcms] Re: Dotcms Dynamic Plugin with Filters

If you look at the original filter source I posted, you'll see that line and the chain code commented out.

This is because the form servlet endpoints are "outside" the system.

You are already "inside" the system. You can't "bubble up" to an external filter.

So you need to pass directly to the dotCMS core class at this point.

Nathan I. Keiter | Lead Network Applications Programmer | Benefits Advisory Council Member | I.D.E.A Council Member
Gettysburg College | Information Technology | DataSystems
Campus Box 2453 | 300 North Washington Street | Gettysburg, PA 17325
Phone: 717.337.6993

https://www.gettysburg.edu<https://www.gettysburg.edu/>

-----Original Message-----
From: dot...@googlegroups.com<mailto:dot...@googlegroups.com> [mailto:dot...@googlegroups.com] On Behalf Of Nathan Keiter
Sent: Tuesday, August 22, 2017 3:23 PM
To: dot...@googlegroups.com<mailto:dot...@googlegroups.com>
Subject: Re: [dotcms] Re: Dotcms Dynamic Plugin with Filters

Oh, right. On success that won't work. You want dotCMS to process the form on success?

Do this:

new WebFormServlet().service( httpServletRequest, httpServletResponse );

Nathan I. Keiter | Lead Network Applications Programmer | Administrative Advisory Council Member | Benefits Advisory Council Member | I.D.E.A Council Member Gettysburg College | Information Technology | DataSystems Campus Box 2453 | 300 North Washington Street | Gettysburg, PA 17325

Phone: 717.337.6993

https://www.gettysburg.edu

________________________________

From: dot...@googlegroups.com<mailto:dot...@googlegroups.com> <dot...@googlegroups.com<mailto:dot...@googlegroups.com>> on behalf of gsuj...@gmail.com<mailto:gsuj...@gmail.com> <gsuj...@gmail.com<mailto:gsuj...@gmail.com>>

Sent: Tuesday, August 22, 2017 3:21 PM

To: dotCMS User Group

Subject: Re: [dotcms] Re: Dotcms Dynamic Plugin with Filters

Added Loggers in the filter class as well

On Tuesday, 22 August 2017 14:11:21 UTC-5, Nathan Keiter wrote:

I still see /dotCMS/sendEmail as a “from” in both forwards.

Why two rules?

Also add logging to the Filter class itself.

Nathan I. Keiter | Lead Network Applications Programmer | Benefits Advisory Council Member | I.D.E.A Council Member Gettysburg College | Information Technology | DataSystems Campus Box 2453 | 300 North Washington Street | Gettysburg, PA 17325

Phone: 717.337.6993

https://www.gettysburg.edu<https://www.gettysburg.edu/<https://www.gettysburg.edu%3chttps:/www.gettysburg.edu/>>

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Aug 22, 2017, 3:44:37 PM8/22/17

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On success the form should go to the intended destination not to the 404 page

I have attached the plugin.Can you check the activator class and web security filter class and let me know if it works

On Tuesday, 22 August 2017 12:31:56 UTC-5, sujeeth kumar wrote:

WebSecurityPlugin.zip

Nathan Keiter

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Aug 22, 2017, 4:20:16 PM8/22/17

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Honestly, I don’t have time to look at your code. What dotCMS version are you on?

I did post a generic example here: https://github.com/nkeiter/generic-dotCMS-plugin-code-examples/tree/master/dotcms4.0.1/osgi/org.example.nkeiter.web.form.spam.filter

Maybe that can point you in the right direction.

It’s complex because of the order of events. You can’t go back “UP” the filter chain, so you need to compensate.

Core Filter

Core Filter .-> Where I need to end up.

Core Filter

Custom Filter

Custom Filter -> Where custom filter is flagged!

Custom Filter

You have to make the jump “UP” via a code shortcut.

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From: dot...@googlegroups.com [mailto:dot...@googlegroups.com] On Behalf Of gsuj...@gmail.com
Sent: Tuesday, August 22, 2017 3:45 PM
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Subject: [dotcms] Re: Dotcms Dynamic Plugin with Filters

On success the form should go to the intended destination not to the 404 page

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Aug 22, 2017, 4:24:05 PM8/22/17

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I am using dotcms 3.7.1 .Will it not work on 3.7.1 OSGI dynamic Plugins .It works only on the 4.0.1 version ??

On Tuesday, 22 August 2017 12:31:56 UTC-5, sujeeth kumar wrote:

Nathan Keiter

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Aug 22, 2017, 4:25:12 PM8/22/17

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3.7 should be fine. I was just asking because I posted a 4.x example.

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Sent: Tuesday, August 22, 2017 4:24 PM
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Subject: [dotcms] Re: Dotcms Dynamic Plugin with Filters

I am using dotcms 3.7.1 .Will it not work on 3.7.1 OSGI dynamic Plugins .It works only on the 4.0.1 version ??

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Aug 22, 2017, 5:12:39 PM8/22/17

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I will try to check on the code Provided and take a look on it if it resolves the issue

Nathan Keiter

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Aug 22, 2017, 5:17:32 PM8/22/17

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dotCMS 2.x -> https://github.com/nkeiter/generic-dotCMS-plugin-code-examples/tree/master/dotcms2.5.4/osgi/org.example.nkeiter.web.form.spam.filter

dotCMS 3.x -> https://github.com/nkeiter/generic-dotCMS-plugin-code-examples/tree/master/dotcms3.5.1/osgi/org.example.nkeiter.web.form.spam.filter

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Aug 23, 2017, 2:12:51 PM8/23/17

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I have used the request Dispatcher instead of the chain.doFilter(request,response).It worked fine for me.

When i use the chain.doFilter(request,response) it is redirecting to 404 page . Can i use it ??

RequestDispatcher rd = request.getRequestDispatcher("/dotCMS/sendEmail");

rd.forward(request, response);

//chain.doFilter(httpServletRequest, httpServletResponse);

Nathan Keiter

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Aug 23, 2017, 2:16:42 PM8/23/17

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No, because you are past the point in the chain where you want to be. You can’t traverse back up the filter chain.

chain.doFilter(req,res) would only be helpful if it’s not a web form and you want to pass it through to a page.

So request dispatcher is your only option for what you are attempting to do.

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From: dot...@googlegroups.com [mailto:dot...@googlegroups.com] On Behalf Of gsuj...@gmail.com
Sent: Wednesday, August 23, 2017 2:13 PM
To: dotCMS User Group
Subject: [dotcms] Re: Dotcms Dynamic Plugin with Filters

I have used the request Dispatcher instead of the chain.doFilter(request,response).It worked fine for me.

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Aug 23, 2017, 4:13:24 PM8/23/17

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Thanks request dispatcher solves the issue

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Aug 23, 2017, 4:29:37 PM8/23/17

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No I am no using chain.dofilter when i use the request dispatcher .I have commented the chain.doFilter in the above comment .I have used just the request dispatcher.