Corrupted special characters after form submit

[flopsi]

Hi there,

i have a problem with special characters (e.g. German umlauts) when submitting a form. They are all corrupted. I am using UTF-8 all over (see below), and if i put such a corrupted character in Notepad++ and switch the view to UTF-8, then it is correctly shown...

An example of what happens:

Before form submit

After form submit

But first of all my environment (of cause there's more, but this should be all that mnatters):

JBoss 7.1.1 Final

Seam 2.3.0 Final

Mojarra 2.1.13

Hibernate Validator 4.2.0

PrimeFaces 3.3.1

I develop using JBoss Studio 5.0.1GA (UTF-8 as default encoding for text files)...

Now my configuration (the relevant part):

web.xml

======

...

  <filter>

    <filter-name>PrimeFaces FileUpload Filter</filter-name>

    <filter-class>org.primefaces.webapp.filter.FileUploadFilter</filter-class>

  </filter>

  <filter-mapping>

    <filter-name>PrimeFaces FileUpload Filter</filter-name>

    <url-pattern>/*</url-pattern>

  </filter-mapping>

  <filter>

    <filter-name>Seam Filter</filter-name>

    <filter-class>org.jboss.seam.servlet.SeamFilter</filter-class>

  </filter>

  <filter-mapping>

    <filter-name>Seam Filter</filter-name>

    <url-pattern>/*</url-pattern>

  </filter-mapping>

...

components.xml

============

<components xmlns="http://jboss.com/products/seam/components"

            xmlns:core="http://jboss.org/schema/seam/core"

            xmlns:web="http://jboss.org/schema/seam/web"

            ...

            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

            xsi:schemaLocation=

                 "http://jboss.org/schema/seam/components http://jboss.com/products/seam/components-2.2.xsd

                 http://jboss.org/schema/seam/core http://jboss.com/products/seam/core-2.2.xsd

                 http://jboss.org/schema/seam/web http://jboss.com/products/seam/web-2.2.xsd

                 ...

                 "

>

   <core:manager concurrent-request-timeout="10000"

                 uri-encoding="utf-8"

                 conversation-timeout="1800000"

                 conversation-id-parameter="cid"

                 parent-conversation-id-parameter="pid"

                 default-flush-mode="MANUAL"/>

   <web:hot-deploy-filter url-pattern="*.seam"/>

   <web:character-encoding-filter encoding="utf-8" override-client="true" url-pattern="*.seam"/>

   <web:multipart-filter disabled="true" create-temp-files="true" max-request-size="4000000" url-pattern="*.seam"/>

...

</components>

standalone.xml

===========

...

<system-properties>

    <property name="org.apache.catalina.connector.URI_ENCODING" value="UTF-8"/>

    <property name="org.apache.catalina.connector.USE_BODY_ENCODING_FOR_QUERY_STRING" value="true"/>

</system-properties>

...

<profile>

    <subsystem xmlns="urn:jboss:domain:web:1.1" default-virtual-server="default-host" native="false">

        <connector name="http" protocol="HTTP/1.1" scheme="http" socket-binding="http"/>

        <connector name="ajp1" protocol="AJP/1.3" scheme="http" socket-binding="ajp1" redirect-port="8443" max-post-size="4194304" max-save-post-size="8192"/>

        <connector name="ajp2" protocol="AJP/1.3" scheme="http" socket-binding="ajp2" redirect-port="8443" max-post-size="4194304" max-save-post-size="8192"/>

    </subsystem>

    ...

</profile>

...

View Template

===========

<?xml version='1.0' encoding='UTF-8'?>

<f:view xmlns="http://www.w3.org/1999/xhtml"

   contentType="text/html"

   encoding="UTF-8">

   ...

  <h:head>

    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>

    ...

  </h:head>

</f:view>

Also i implemented a Filter to set the character set for the request:

@Scope(APPLICATION)

@Name("CharEncFilter")

@BypassInterceptors

@Install(precedence = 100)

@Filter(within = "org.jboss.seam.web.ajax4jsfFilter")

public class CharEncFilter extends AbstractFilter {

    public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain) throws IOException, ServletException {

        request.setCharacterEncoding("UTF-8");

        filterChain.doFilter(request, response);

    }

}

So, i don't know where to put UTF-8 anymore. All XHTML files are also encoded in UTF-8. By the way, the views themselves, the message bundles and the database content show up correctly, only the submitted form data is corrupted.

I have no idea anymore, but maybe i have overseen something very obvious?!? Maybe PrimeFaces issue? But didn't find one...

Thanks a lot, best regards

Flo

[flopsi]

Hello again,

finally i found the solution...

My guess that it could be related to PrimeFaces was right. To be more precisely, it was the MultipartRequest object used in FileUploadFilter object.

What i changed (in bold style, for Version 3.3.1 which i use):

public class MultipartRequest extends HttpServletRequestWrapper {

    ...

    private String charEncoding;

    public MultipartRequest(HttpServletRequest request, ServletFileUpload servletFileUpload) throws IOException {

        super(request);

        formParams = new LinkedHashMap<String, List<String>>();

        fileParams = new LinkedHashMap<String, List<FileItem>>();

        charEncoding = request.getCharacterEncoding();

        parseRequest(request, servletFileUpload);

    }

    ...

    private void addFormParam(FileItem item) throws IOException {

        if(formParams.containsKey(item.getFieldName())) {

            formParams.get(item.getFieldName()).add(item.getString());

        } else {

            List<String> items = new ArrayList<String>();

            items.add(item.getString(charEncoding));

            formParams.put(item.getFieldName(), items);

        }

    }

}

I hope this will be incorporated into one of the next versions of PrimeFaces so this fix is not necessary anymore...

Best regards

Flo