Problem with http post through proxy

**kroast** · May 20th, 2010, 05:14 AM

Hello,

I have refactored the RemoteClient support for application/x-www-form-urlencoded forms so that it correctly submits the posted paramaters.

I used something very similar to your test case:

Code:

<html xmlns="http://www.w3.org/1999/xhtml">
   <head>
      <title>Proxy Test</title>
   </head>
   <body>
      <form method="post" action="${url.context}/proxy/alfresco-admin/sample/args" accept-charset="UTF-8">
         <div>
            <input type="text" name="firstname" value="Charles"/>
            <input type="text" name="lastname" value="Dickens"/>
            <input type="submit"/>
         </div>
      </form>
   </body>
</html>

and I created a multipart/form-data version of the same test with a file upload element:

Code:

<html xmlns="http://www.w3.org/1999/xhtml">
   <head>
      <title>Proxy Test</title>
   </head>
   <body>
      <form method="post" action="${url.context}/proxy/alfresco-admin/sample/args" enctype="multipart/form-data" accept-charset="UTF-8">
         <div>
            <input type="text" name="firstname" value="Charles"/>
            <input type="text" name="lastname" value="Dickens"/>
            <input type="file" name="fileupload"/>
            <input type="submit"/>
         </div>
      </form>
   </body>
</html>

Both tests now work correctly, I used your sample args webscript at the backend also.

rev 408

Thanks,

Kevin

**bpeters** · May 21st, 2010, 12:29 AM

Hi Kev,

Thank you very much for your help. I tried to run the upload, but still receive a 400 error from the sample/upload backend script (http://wiki.alfresco.com/wiki/Web_Sc...es#File_Upload) that I use to test the multipart data.

Have you been able to post the multipart form to the sample/upload backend webscript, or do I need to use a different approach to retrieve the file data in the backend?

Kind regards,

Bas

**kroast** · May 21st, 2010, 03:37 AM

Hi,

That is exactly the sample upload webscript I used to test the backend of multi-part form file upload - so yes it should work

The only changes I made to your web-tier sample, were to set the form to multipart:

Code:

enctype="multipart/form-data"

and obviously change the field names to match those expected by the backend:

Code:

            <input type="text" name="title" value="the file title"/>
            <input type="text" name="desc" value="the file description"/>
            <input type="file" name="file"/>

Then you will see the result:

Code:

Alfresco  	Upload Web Script Sample
	Alfresco Community v3.3.0 (beta @build-number@)
	
	Uploaded upload9_01-gold-bar.jpg of size 76,151.

So the key point here is that multipart must be set on your upload form if it is to be used to transfer file content - that is the only mechanism supported for binary uploads, and the field names expected by the destination web-script must match those in your source form.

Cheers,

Kev

**bpeters** · May 28th, 2010, 09:41 AM

In that case I must be doing something wrong since I keep receiving the following response from the backend:

========
Alfresco Web Script Status 400 - Bad Request

The Web Script /alfresco/service/sample/upload has responded with a status of 400 - Bad Request.

400 Description: Request sent by the client was syntactically incorrect.

Message: Uploaded file cannot be located in request
Server: Alfresco Community v3.3.0 (2765) schema 4.009
Time: 28-mei-2010 16:12:38

Diagnostics: Inspect Web Script (upload.post)
========

I am using Spring Surf revision 414 on the frontend (did an svn update, mvn clean and install for surf), created a quick start application and modified surf.xml according to the attached file and added the upload.get.desc.xml and upload.get.html.ftl (see attachment).

On the backend I use Alfresco Community 3.3 with the upload post script from the sample webscripts page.

Any idea what the difference might be?

Kind regards,

Bas

**DeleteEnd1** · May 30th, 2010, 05:56 AM

have just the same problem. thank you for trying to help us

**benh** · Jun 10th, 2010, 09:43 AM

Hi Bas,

I installed your upload web script in to a sample Surf webapp built a few weeks ago. I then uploaded your back-end web scripts into Alfresco and tested an upload. I am running a HEAD build of Alfresco, but the web scripts that were installed were the ones you provided.

The upload failed with the same error that you reported -
400 Description: Request sent by the client was syntactically incorrect.

I then pulled down the latest Spring Surf libs and built the test application \trunk\spring-surf-applications\spring-surf-application-quickstart and dropped this into my Tomcat server. I added just the upload freemarker template (replacing the home page).

The upload then succeeds. My test webapp can be found here - http://www.benh.co.uk/springsurf.zip

Let me know how your testing goes.

Regards, Ben.

**bpeters** · Jun 10th, 2010, 02:28 PM

Hi Ben,

Thank you very much for your support. Your code is working properly both for Alfresco Community 3.3 and Enterprise 3.2. I now have a reference that will help me to solve the issue.

Thanks again.

Kind regards,

Bas

**kroast** · Jun 10th, 2010, 02:38 PM

Great news! Thanks.

Kev

**benh** · Jun 11th, 2010, 01:14 AM

Thanks Bas!

Regards, Ben.

**bpeters** · Jun 11th, 2010, 04:06 PM

I guess I found out why I was unable to upload even after Kev's updates to the Surf code although I used the latest snapshot (revision 416). The web-application-config.xml contains some changes. When I commented out the following bean declaration related to the multipart handler the upload works properly:

<bean id="multipartResolver" class="org.springframework.web.multipart.commons.C ommonsMultipartResolver">
<property name="maxUploadSize" value="10000000"/>
</bean>

The application I used to test the code updates done by Kev used the latest libraries, but I never updated the Roo add-on, so the quick start application still had the old configuration in web-application-config.xml.

Thanks again Kev and Ben for your help.

Bas

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