Re: need some help with my project design

[Duong BaTien]

On Fri, 2009-12-18 at 17:04 +0100, Thierry Boileau wrote:
> Hello Duong,
> 
> >   1) Whether the Restlet client has the Same Server Origin (SSO)
> > restriction as with JavaSript? 
> >   
> Actually, this is at the end pure javascript code, so the restriction 
> applies plainly.
> see http://code.google.com/p/google-web-toolkit-doc-1-5/wiki/FAQ_SOP
> 
Yes, this is what I referred to: Same Origin Policy (SOP) of browser. I
have explored GWT StockWatcher for cross-site JSONP request/response.

> >   2) If there is SSO restriction as in the case of JavaScript, are there
> > facilities to manage request/response from the client to different
> > servers to make sure that the response coming from its request?
> I'm sorry, I'm not sure to fully understand your question.

In that cross-site mashup, one needs a facility to store requested
callbacks so it can cancel the no-response callback after certain time
lapsed and identify the callback actually coming from its request. This
may require a facility more sophisticated than just a HashMap of
callbacks as shown in GWT StockWatcher. I wonder if GWT Reslet client
has that facility in place?. 
> 
> > Same as the server to make sure that the request comes from legitimate 
> > clients?
> >   
> Since the server exposes resources to the whole Web, I suppose you are 
> talking about the "authentication" topic. You want the server to check 
> that the incoming request comes from an authenticated client. It can use 
> one of the available authentication mechanism such as HTTP_BASIC, 
> HTTP_DIGEST, HTTP_BASIC+HTTPS, cookies, etc.

It is much more complicated than that. When the server serves a
resource, it identifies the request with a user profile and its unique
token. If the user has not been authenticated, then guest Id with
location may be in the user profile. When user is authenticated, the
profile is changed accordingly. User second request and/or client state
maintained at the browser always has the server token so the server know
the client state, and if required can be directed to Authentication
process.

I wonder if Restlet and/or anyone has explored this area working with
GAE. I am also exploring Google Wave where Wave robots are at the Web
Server served by servlet urls. The web server uses Reslet for resource
Request/Response to be integrated with Wave server. Any comment in this
area is appreciated. 

Thanks
Duong BaTien
DBGROUPS and BudhNet
> 
> Best regards,
> Thierry Boileau
> 
> 
> > Thanks
> > Duong Batien
> > DBGROUPS and BudhNet
> >
> >
> > On Thu, 2009-12-17 at 09:38 +0100, Thierry Boileau wrote:
> >   
> >> Hello Robert,
> >>
> >>  >Is restlet appropriate for this needs?
> >> yes, as any other kind of server!
> >>
> >>  >How would you realize the communication between Client (Javascript) 
> >> and Server (Java) with the help of restlet?
> >> Ajax, surely. When the user click on the load button, the second frame 
> >> is refreshed and the URL of the target page is sent to the server 
> >> resource by the ajax client (which is better than sending the whole 
> >> document). The targeted resource retrieves the HTML page (which can be 
> >> tidied using *http://tidy.sourceforge.net 
> >> ). The server resource then returns data 
> >> (rdf or xml, or json, etc) to the ajax client in order to refresh the 
> >> main frame.
> >>
> >> *So, one server resource either accepting GET request (with a query 
> >> parameter that contains the target URI), or accepting POST requests 
> >> (with the target URI in the body). It returns either RDF, XML, etc 
> >> according to the client preferences.
> >>
> >> Best regards,
> >> Thierry Boileau
> >> 
> >>> Hey!
> >>>
> >>> I want to develop a webapplication with the following functionality:
> >>>
> >>> 0) overview: http://dl.dropbox.com/u/1266822/overview.jpg
> >>>
> >>> 1) The html,css,javascript content is delivered by the server.
> >>> 2) The page consists of 2 frames. the second one loads the webpages the 
> >>> user wants to open.
> >>> 3) The server receives the DOM of the loaded page.
> >>> 4) The client receives data in the form of rdf or xml.
> >>>
> >>>
> >>> Is restlet appropriate for this needs? How would you realize the 
> >>> communication between Client (Javascript) and Server (Java) with the help 
> >>> of restlet? 
> >>> Would be really nice if you could give me a short overview of what I have 
> >>> to take care of.
> >>>
> >>> Thanks in advance,
> >>> Robert
> >>>
> >>> --
> >>> http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2430835
> >>>
> >>>
> >>>   
> >> --
> >> http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2431075
> >> 
> >
> > --
> > http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2431201
> >
> >
> 
> --

Re: need some help with my project design

[Thierry Boileau]

Hi,

I suspect you are using the 2.0m5 or under version of the Restlet 
framework. Is it right?
In this case, can you test with the 2.0 m6?

best regards,
Thierry Boileau

> Hey Thierry,
>
> thanks for your answer!
>
> I tried to receive the text from the hello world example with ajax.
>
> The js code (using jquery):
>
> $.ajax({
>   type: "GET",
>   url: "myurl/hello",
>   data: "",
>   success: function(data){
>   $("#ajaxcontent").html(data);
>   }
> });
>
>
> But it seems to be a difference between an ajax get request and the browser 
> get request? My console shows this for the browser request:
>
> 9000  GET /hello  -   200 12  -   2
>
> And this for the ajax request:
>
> 9000  OPTIONS /hello  -   405 402 -   0
>
> How can I fix this? :)
>
>   
>> Hello Robert,
>>
>>  >Is restlet appropriate for this needs?
>> yes, as any other kind of server!
>>
>>  >How would you realize the communication between Client (Javascript) 
>> and Server (Java) with the help of restlet?
>> Ajax, surely. When the user click on the load button, the second frame 
>> is refreshed and the URL of the target page is sent to the server 
>> resource by the ajax client (which is better than sending the whole 
>> document). The targeted resource retrieves the HTML page (which can be 
>> tidied using *http://tidy.sourceforge.net 
>> ). The server resource then returns data 
>> (rdf or xml, or json, etc) to the ajax client in order to refresh the 
>> main frame.
>>
>> *So, one server resource either accepting GET request (with a query 
>> parameter that contains the target URI), or accepting POST requests 
>> (with the target URI in the body). It returns either RDF, XML, etc 
>> according to the client preferences.
>>
>> Best regards,
>> Thierry Boileau
>> 
>>> Hey!
>>>
>>> I want to develop a webapplication with the following functionality:
>>>
>>> 0) overview: http://dl.dropbox.com/u/1266822/overview.jpg
>>>
>>> 1) The html,css,javascript content is delivered by the server.
>>> 2) The page consists of 2 frames. the second one loads the webpages the 
>>> user wants to open.
>>> 3) The server receives the DOM of the loaded page.
>>> 4) The client receives data in the form of rdf or xml.
>>>
>>>
>>> Is restlet appropriate for this needs? How would you realize the 
>>> communication between Client (Javascript) and Server (Java) with the help 
>>> of restlet? 
>>> Would be really nice if you could give me a short overview of what I have 
>>> to take care of.
>>>
>>> Thanks in advance,
>>> Robert
>>>
>>> --
>>> http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2430835
>>>
>>>
>>>   
>
>

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[JOB] Developer Needed in New York

[Avi Flax]

Hi all, I hope no one minds me posting this here.

We're a web application design and development firm in New York, and we've
got some big new opportunities coming up in 2010. We're looking for
experienced, dynamic, creative generalists, with a strong background in web
application development, particularly with Restlet, to start soon.

Please note: this is an on-site, full-time, long-term position.

If you're interested, please see our job posting here:

http://jobs.37signals.com/jobs/5891

and send me a SHORT note introducing yourself and describing how you'd be a
good fit for the position.

PLEASE don't reply to the list, unless it's to lambast me for spamming.

Thanks, and Happy Hanukkah, Merry Christmas, Happy Winter, etc!

Avi

-- 
Avi Flax » Partner » Arc90 » http://arc90.com
➙ Have you tried Kindling‽ http://kindlingapp.com

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Re: need some help with my project design

[Thierry Boileau]

Hello Duong,

>   1) Whether the Restlet client has the Same Server Origin (SSO)
> restriction as with JavaSript? 
>   
Actually, this is at the end pure javascript code, so the restriction 
applies plainly.
see http://code.google.com/p/google-web-toolkit-doc-1-5/wiki/FAQ_SOP

>   2) If there is SSO restriction as in the case of JavaScript, are there
> facilities to manage request/response from the client to different
> servers to make sure that the response coming from its request?
I'm sorry, I'm not sure to fully understand your question.

> Same as the server to make sure that the request comes from legitimate 
> clients?
>   
Since the server exposes resources to the whole Web, I suppose you are 
talking about the "authentication" topic. You want the server to check 
that the incoming request comes from an authenticated client. It can use 
one of the available authentication mechanism such as HTTP_BASIC, 
HTTP_DIGEST, HTTP_BASIC+HTTPS, cookies, etc.

Best regards,
Thierry Boileau


> Thanks
> Duong Batien
> DBGROUPS and BudhNet
>
>
> On Thu, 2009-12-17 at 09:38 +0100, Thierry Boileau wrote:
>   
>> Hello Robert,
>>
>>  >Is restlet appropriate for this needs?
>> yes, as any other kind of server!
>>
>>  >How would you realize the communication between Client (Javascript) 
>> and Server (Java) with the help of restlet?
>> Ajax, surely. When the user click on the load button, the second frame 
>> is refreshed and the URL of the target page is sent to the server 
>> resource by the ajax client (which is better than sending the whole 
>> document). The targeted resource retrieves the HTML page (which can be 
>> tidied using *http://tidy.sourceforge.net 
>> ). The server resource then returns data 
>> (rdf or xml, or json, etc) to the ajax client in order to refresh the 
>> main frame.
>>
>> *So, one server resource either accepting GET request (with a query 
>> parameter that contains the target URI), or accepting POST requests 
>> (with the target URI in the body). It returns either RDF, XML, etc 
>> according to the client preferences.
>>
>> Best regards,
>> Thierry Boileau
>> 
>>> Hey!
>>>
>>> I want to develop a webapplication with the following functionality:
>>>
>>> 0) overview: http://dl.dropbox.com/u/1266822/overview.jpg
>>>
>>> 1) The html,css,javascript content is delivered by the server.
>>> 2) The page consists of 2 frames. the second one loads the webpages the 
>>> user wants to open.
>>> 3) The server receives the DOM of the loaded page.
>>> 4) The client receives data in the form of rdf or xml.
>>>
>>>
>>> Is restlet appropriate for this needs? How would you realize the 
>>> communication between Client (Javascript) and Server (Java) with the help 
>>> of restlet? 
>>> Would be really nice if you could give me a short overview of what I have 
>>> to take care of.
>>>
>>> Thanks in advance,
>>> Robert
>>>
>>> --
>>> http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2430835
>>>
>>>
>>>   
>> --
>> http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2431075
>> 
>
> --
> http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2431201
>
>

--
http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2431515

Re: 2.0snapshot Encoder.setMinimumSize broken

[Thierry Boileau]

Hello Guido,

I've set up a sample app (served by the jetty connector) where an 
instance of a JsonRepresentation is instantiated with a string (456 
characters).
I've got also a GWT client app served by a Directory Restlet which calls 
the target resource, and in both cases there is no missing characters.

Did you try with the current snapshot? Did you try to simply send a 
StringRepresentation instead of a JsonRepresentation?


Best regards,
Thierry Boileau


> Hello,
>
> sorry for being so unspecific. I use a SE component with Jetty, the client
> is using the GWT edition. I tested with current versions of FF, Safari and
> Chrome. If the issue occurs they all show one or two characters missing at
> the end of a json string.
>
> Maybe with this small test case it becomes reproducable:
>
> public class Encoder extends org.restlet.engine.application.Encoder {
>
>   public Encoder(final Context context) {
>   super(context);
>   setMinimumSize(400);
>   }
>
>   @Override
>   public void afterHandle(final Request request, final Response response) 
> {
>   if (response.isEntityAvailable()) {
>   final Representation entity = response.getEntity();
>   try {
>   System.out.println("entity : " + 
> entity.getText());
>   } catch (final IOException e) {
>   }
>   System.out.println("entity size : " + entity.getSize());
>   }
>   super.afterHandle(request, response);
>   }
>
> }
>
> I test with a json rep that has a size of 317. The JsonRepresentation is
> created from a String that is built from an LDAP response or is taken out of
> a self-implemented cache directly.
>
> On the console I see
>
> entity :
> {"response":{"status":0,"startrow":0,"totalRows":1,"endrow":1,"data":[{"id":
> ...  }]}}
> entity size : 317
>
> The string is a valid json.
>
> In a SF client the web inspector reports:
> Accept-Ranges:bytes
> Cache-Control:max-age=3600
> Content-Length:317
> Content-Type:application/json; charset=UTF-8
> Date:Tue, 15 Dec 2009 11:47:34 GMT
> Expires:Tue, 15 Dec 2009 12:47:34 GMT
> Server:Restlet-Framework/2.0snapshot
> Vary:Accept-Charset, Accept-Encoding, Accept-Language, Accept
>
> But the content ends with ] the final }} are missing. Hence, I receive
> invalid data.
> Firebug on FF 355 reports the same.
>
> Changing the test code to setMinimalSize(300) I get the same correct console
> output and the web inspector reports:
> Accept-Ranges:bytes
> Cache-Control:max-age=3600
> Content-Encoding:gzip
> Content-Type:application/json; charset=UTF-8
> Date:Tue, 15 Dec 2009 11:53:01 GMT
> Expires:Tue, 15 Dec 2009 12:53:01 GMT
> Server:Restlet-Framework/2.0snapshot
> Transfer-Encoding:Identity
> Vary:Accept-Charset, Accept-Encoding, Accept-Language, Accept
>
> The content is correct. It seems that piping a json rep through the encoder
> without encoding may corrupt it.
>
> Best regards,
> Guido Schmidt
>
>
>

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