Hi, Richard!
When passing information from JavaScript to a page or component class, I
avoid the the encoding problem by using query parameters (which are
decoded normally instead of using the Tapestry decoder). With the new
@RequestParameter and @ActivationRequestParameter annotations this is even
easier.
On Thu, 06 Jan 2011 09:37:35 -0200, Richard Hill <r...@su3analytics.com>
wrote:
Hi Taha,
Thanks for the response. The latter suggestion doesn't work for me,
these urls are external urls input by the user. I tried the first
suggestion but it does not work. Not sure exactly what all the issues
are, but I note that what encodeURIComponent encodes and what Tapestry
encodes are not consistent (e.g tapestry doesn't encode a ":" whereas
encodeURIComponent does). Also Tapestry converts a "$" to "$$", and
Tapestry's hex is lower-case, whereas encodeURIComponent is upper-cased.
There may be other differences too.
So I have instead ported the tapestry service method
URLEncoderImpl.encode(String input) to javascript. I haven't tested on a
huge number of urls, but it seems to work. I have though tested the hex
encoding against the main pertinent characters (!, &, ?, %,
~, ; /, ....) and they seem to all tally. For posterity this is the
javascript:
_SU3.tapestryEncodeUri = function(uri) {
var ENCODED_NULL = "$N";
var ENCODED_BLANK = "$B";
if (uri == null) return ENCODED_NULL;
if (uri == "") return ENCODED_BLANK;
var dirty = false;
var encodedUri = "";
var safe = new RegExp(/[a-zA-Z0-9\-_\.:]/);
for (var i = 0; i < uri.length; i++) {
var ch = uri.charAt(i);
if (ch == '$') {
encodedUri = encodedUri + "$$";
dirty = true;
continue;
}
if (ch.match(safe)) {
encodedUri = encodedUri + ch;
continue;
}
var encodedCh = _SU3.tapestryEncodeChar(ch);
encodedUri = encodedUri + encodedCh;
dirty = true;
}
return dirty ? encodedUri : uri;
};
_SU3.tapestryEncodeChar = function(char) {
var chAsInt = char.charCodeAt(0);
var hex = chAsInt.toString(16);
var encodedCh;
if (hex.length == 2) {
encodedCh = "$00" + hex;
} else if (hex.length == 3) {
encodedCh = "$0" + hex;
} else if (hex.length == 1) {
encodedCh = "$000" + hex;
} else {
encodedCh = "$" + hex;
}
return encodedCh;
};
Cheers, Richard.
On Wed, 2011-01-05 at 11:31 +0530, Taha Hafeez wrote:
Hi Richard
There are two ways of doing it...
1. after you have applied encodeURIComponent() replace '%' by '$00'
(ensure
that the converted number is 4 digit)
2. Use ?name=value instead of '/' and use request.getParameter() or
@RequestParameter
regards
Taha
On Tue, Jan 4, 2011 at 11:26 PM, Richard Hill <r...@su3analytics.com>
wrote:
>
> Ah, apologies - I thought the threading was based on the subject line.
>
> R.
>
>
>
> On Tue, 2011-01-04 at 15:52 -0200, Thiago H. de Paula Figueiredo
wrote:
> > Hi!
> >
> > Please post new discussions as new messages instead of replying to
> > existing ones. Every threaded visualization of the mailing list
will show
> > your message in the wrong place. ;)
> >
> > On Tue, 04 Jan 2011 15:24:28 -0200, Richard Hill
<r...@su3analytics.com>
> > wrote:
> >
> >
> > > Happy New Year All,
> > >
> > > I'm attempting to pass an url in an ajax request to an onEvent
handler.
> > > So I'm making a request like:
> > >
> > > GET /MyPage.MyComponent:event/http://blah.com/....
> > >
> > > MyComponent.java:
> > >
> > > public StreamResponse onEvent(String url) {
> > > ....
> > > }
> > >
> > >
> > > The problem is that what's being passed to onEvent() is just
"http:"
> > >
> > > Now I realise that "/" is the context delimiter. However I've
tried
> > > encoding the url with escape(url), encodeURI(url), and
> > > encodeURIComponent(url) (the latter 2 encode the "/") but to no
avail -
> > > same issue.
> > >
> > > I also realise that Tapestry employs it's own encoding scheme -
do I
> > > have to encode in this way? If so, does anyone have some code to
> > > implement Tapestry url encoding in javascript?
> > >
> > > Many thanks,
> > >
> > > Richard.
> > >
> > >
> > >
> > >
> > >
> > >
> > >
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> > >
> >
> >
>
>
>
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--
Thiago H. de Paula Figueiredo
Independent Java, Apache Tapestry 5 and Hibernate consultant, developer,
and instructor
Owner, Ars Machina Tecnologia da Informação Ltda.
Consultor, desenvolvedor e instrutor em Java, Tapestry e Hibernate
Coordenador e professor da Especialização em Engenharia de Software com
Ênfase em Java da Faculdade Pitágoras
http://www.arsmachina.com.br
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