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From "Sergey Beryozkin (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (CXF-2242) FormEncodingProvider writes the application/x-www-form-urlencoded params incorrectly when multiple params with the same name are present
Date Mon, 01 Jun 2009 17:43:07 GMT

     [ https://issues.apache.org/jira/browse/CXF-2242?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sergey Beryozkin resolved CXF-2242.
-----------------------------------

       Resolution: Fixed
    Fix Version/s: 2.2.3

I applied your proposed fix as is and it worked really well, thanks ! I'd like to view it
as a patch point. 

> FormEncodingProvider writes the application/x-www-form-urlencoded params incorrectly
when multiple params with the same name are present
> ----------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: CXF-2242
>                 URL: https://issues.apache.org/jira/browse/CXF-2242
>             Project: CXF
>          Issue Type: Bug
>          Components: REST
>    Affects Versions: 2.2.1
>            Reporter: Nacho G. Mac Dowell
>            Assignee: Sergey Beryozkin
>             Fix For: 2.2.3
>
>         Attachments: FormEncodingProvider.patch
>
>
> Hi, there is a problem with FormEncodingProvider when writing the url-encoded string.
It is checking an incorrect iterator.
>     public void writeTo(MultivaluedMap<String, String> map, Class<?> c, Type
t, Annotation[] anns, 
>                         MediaType mt, MultivaluedMap<String, Object> headers, OutputStream
os) 
>         throws IOException, WebApplicationException {
>         boolean encoded = AnnotationUtils.getAnnotation(anns, Encoded.class) != null;
>         for (Iterator<Map.Entry<String, List<String>>> it = map.entrySet().iterator();
it.hasNext();) {
>             Map.Entry<String, List<String>> entry = it.next();
>             for (String value : entry.getValue()) {
>                 os.write(entry.getKey().getBytes("UTF-8"));
>                 os.write('=');
>                 String data = encoded ? value : HttpUtils.urlEncode(value); 
>                 os.write(data.getBytes("UTF-8"));
>                 if (it.hasNext()) {
>                     os.write('&');
>                 }
>             }
>         }
>     }
> it.hasNext() should be checking the entry iterator and not the map iterator. The consequence
is that & is never appended if, for example, there is only one parameter
> Fixed version would be:
>     public void writeTo(MultivaluedMap<String, String> map, Class<?> c, Type
t, Annotation[] anns, 
>                         MediaType mt, MultivaluedMap<String, Object> headers, OutputStream
os) 
>         throws IOException, WebApplicationException {
>         boolean encoded = AnnotationUtils.getAnnotation(anns, Encoded.class) != null;
>         for (Iterator<Map.Entry<String, List<String>>> it = map.entrySet().iterator();
it.hasNext();) {
>             Map.Entry<String, List<String>> entry = it.next();
>             for (Iterator<String> entryIterator = entry.getValue().iterator();
entryIterator.hasNext();) {
>             	String value = entryIterator.next();
> 				os.write(entry.getKey().getBytes("UTF-8"));
>                 os.write('=');
>                 String data = encoded ? value : HttpUtils.urlEncode(value); 
>                 os.write(data.getBytes("UTF-8"));
>                 if (entryIterator.hasNext()) {
>                     os.write('&');
>                 }
>             }
>         }
>     }
> I don't have time just now to provide test cases but a careful look should do.
> best regards

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