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https://issues.apache.org/jira/browse/MYFACES-4009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14741688#comment-14741688
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Leonardo Uribe commented on MYFACES-4009:
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I tried some examples with Mojarra 2.2.12 and it renders the same as MyFaces,
but I notice that in this case:
<h:outputLink value="box1.xhtml?id=some value">
the space is percent encoded (space replaced by %20).
But the query params coming from f:param for h:link, h:outputLink and
h:commandLink are encoded using java.net.URLEncoder.encode(...).
In JSF 2.2 spec renderkit doc for component-family: javax.faces.OutcomeTarget
renderer-type: javax.faces.Button there is a section titled:
"Algorithm to obtain the url to which the user-agent should issue a GET request
when clicked"
It says this:
"... The entire target URL string must be processed by a call to the
encodeResourceURL() method of the ExternalContext. The name of the UIParameter
goes on the left hand side, and the value of the UIParameter on the right hand
side. The name and the value must be URLEncoded. Each UIParameter instance is
separeted by an ampersand, as dictated in the URL spec. ..."
In this case we have a situation where the same string is encoded multiple
times:
- Call to URLEncoder.encode(...) for each parameter provided by f:param tag
- In ResponseWriter.writeURIAttribute(...)
ExternalContext.encodeResourceURL() internally calls
httpServletResponse.encodeURL(...), but this is not used to do the url encoding
(it is called later on the same algorithm, so that part is fine).
This issue needs to be discussed at spec level. I'll create an issue for this
one.
> outputLink URL encoding
> ------------------------
>
> Key: MYFACES-4009
> URL: https://issues.apache.org/jira/browse/MYFACES-4009
> Project: MyFaces Core
> Issue Type: Bug
> Affects Versions: 2.2.8
> Reporter: Bill Lucy
> Priority: Minor
> Attachments: myfaces-4009.patch
>
>
> We have an interesting behaviour when rendering h:outputLink with nested
> f:param elements: in the param data, the output href string has spaces
> encoded with a "+" rather than the expected "%20". For example:
> <h:outputLink value="login.xhtml"><h:outputText value="Login page" /><f:param
> name="username" value="This is a test" /></h:outputLink>
> creates the following:
> <a href="login.xhtml?username=This+is+a+test">Login page</a>
> This already seems to have been discussed in
> https://java.net/jira/browse/JAVASERVERFACES_SPEC_PUBLIC-1019
> I'll attach a patch which resolves this - if it is in fact an issue.
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