Site with google earth support using seaside

> I have to do a site for tracking vehicles using google earth. The site
> work like this:
>
> - The user logins (a session start)
> - select what vehicle he wants to see
> - for the selected vehicle the site has to build on the fly a KML file
> (it's much like an XML with special tags)
> - the KML has to refresh itself agains the server (autorefresh, to
> update vehicle's position), the refresh tag it's like href="...."
> refreshInterval="...."
> - The user closes google earth, and then he logs out or the session
> expires (no more auto-refresh from GE).
>
> How can i implement this using Seaside, the problems i have are:
>
> - Rendering non html content, i've been using
>     self session returnResponse: ((Seaside.WAResponse new)
>                             contentType:
> 'application/vnd.google-earth.kml+xml';
>                             nextPutAll: stream contents;
>                             yourself)].
>     Is this the way, or there is another easier/cleaner way?

> I'll appreciate any help!
>
> Thanks.
> Bye.
>
> _______________________________________________
> Seaside mailing list
> [hidden email]
> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside
>

> 2007/9/14, Mariano Wahlmann <[hidden email]>:
>  
>> I have to do a site for tracking vehicles using google earth. The site
>> work like this:
>>
>> - The user logins (a session start)
>> - select what vehicle he wants to see
>> - for the selected vehicle the site has to build on the fly a KML file
>> (it's much like an XML with special tags)
>> - the KML has to refresh itself agains the server (autorefresh, to
>> update vehicle's position), the refresh tag it's like href="...."
>> refreshInterval="...."
>> - The user closes google earth, and then he logs out or the session
>> expires (no more auto-refresh from GE).
>>
>> How can i implement this using Seaside, the problems i have are:
>>
>> - Rendering non html content, i've been using
>>     self session returnResponse: ((Seaside.WAResponse new)
>>                             contentType:
>> 'application/vnd.google-earth.kml+xml';
>>                             nextPutAll: stream contents;
>>                             yourself)].
>>     Is this the way, or there is another easier/cleaner way?
>>    
>
> You just posted the simplest and least interesting part. The real
> question is how build up th KML. Since KML "xml" and not just "xml
> like" you could use your own canvas renderer. For some reason the code
> that helps you generate all the methods was dropped so you'll have to
> search it in the archives.
>
>  

>> - Include session url inside the content (to keep user session alive,
>> and ensure that he's a validated user), in order to fill href="..." tag
>> of KML content.
>>    
>
> Including session id is a bad idea because they time out. Add the
> neccasary informtion to the url, build a Seaside application that only
> handles the kml requests and implement #initialRequest:.
>
>  

> 2007/9/14, Mariano Wahlmann <[hidden email]>:
>  
>> Philippe Marschall escribió:
>>    
>>> 2007/9/14, Mariano Wahlmann <[hidden email]>:
>>>
>>>      
>>>> I have to do a site for tracking vehicles using google earth. The site
>>>> work like this:
>>>>
>>>> - The user logins (a session start)
>>>> - select what vehicle he wants to see
>>>> - for the selected vehicle the site has to build on the fly a KML file
>>>> (it's much like an XML with special tags)
>>>> - the KML has to refresh itself agains the server (autorefresh, to
>>>> update vehicle's position), the refresh tag it's like href="...."
>>>> refreshInterval="...."
>>>> - The user closes google earth, and then he logs out or the session
>>>> expires (no more auto-refresh from GE).
>>>>
>>>> How can i implement this using Seaside, the problems i have are:
>>>>
>>>> - Rendering non html content, i've been using
>>>>     self session returnResponse: ((Seaside.WAResponse new)
>>>>                             contentType:
>>>> 'application/vnd.google-earth.kml+xml';
>>>>                             nextPutAll: stream contents;
>>>>                             yourself)].
>>>>     Is this the way, or there is another easier/cleaner way?
>>>>
>>>>        
>>> You just posted the simplest and least interesting part. The real
>>> question is how build up th KML. Since KML "xml" and not just "xml
>>> like" you could use your own canvas renderer. For some reason the code
>>> that helps you generate all the methods was dropped so you'll have to
>>> search it in the archives.
>>>
>>>
>>>      
>> I have objects that renders kml (xml) into an stream, that's not my problem.
>>    
>>>> - Include session url inside the content (to keep user session alive,
>>>> and ensure that he's a validated user), in order to fill href="..." tag
>>>> of KML content.
>>>>
>>>>        
>>> Including session id is a bad idea because they time out. Add the
>>> neccasary informtion to the url, build a Seaside application that only
>>> handles the kml requests and implement #initialRequest:.
>>>
>>>
>>>      
>> Yeah but i don't want any unautorized user to see our vehicles, because
>> anybody could copy the correct parameters into the url and see any vehicle.
>>    
>
> Then use some for of authentication like http basic authentication.
>
>  
>> Kml will be self refreshed every minute or so, so i don't care about
>> session timeout.
>>    
>
> Even if the user switches his computer off? Maybe I'm misunderstanding
> you problem. Do you want the kml only to be valid for the current GE
> session or a longer period like several weeks.
>
>  

> Cheers
> Philippe
>
>  
>> bye bye
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>>
>>    
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>>
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