Network save and load

> Hello,
>
> In DrGeo I want a new feature: users could save and load sketches in a
> remote server. It could be done with FTP or HTTP, or any other means.
> I don't have any experience in networked operation nor what it is
> possible to do with the Pharo classes library.
>
> What are your suggestion?
>
> Thanks
>
> Hilaire

> Hilaire,
>
> On 03 Dec 2011, at 10:38, Hilaire Fernandes wrote:
>
>> Hello,
>>
>> In DrGeo I want a new feature: users could save and load sketches in a
>> remote server. It could be done with FTP or HTTP, or any other means.
>> I don't have any experience in networked operation nor what it is
>> possible to do with the Pharo classes library.
>>
>> What are your suggestion?
>>
>> Thanks
>>
>> Hilaire
>
> I would use HTTP with basic authentication to start with, like Monticello does today.
> Account management is a seperate problem, as is some security strategy.
> You probably intent to have sharing, so you have to think about that too.
>
> The client side could be very simple (for simplicity let's assume you store strings, you could pick a better representation with automatic encoding/decoding, later on):
>
> "Get drawing1"
>
> ZnClient new
>   username: 'john' password: 'secret';
>   get: 'http://www.drgeo.eu/drawings/johnsbook/drawing1'.
>
> "Store a new drawing or overwrite an existing one"
>
> ZnClient new
>   username: 'john' password: 'secret';
>   contents: 'a string representation of a drawing';
>   put: 'http://www.drgeo.eu/drawings/johnsbook/drawing1'.
>
> "Delete a drawing"
>
> ZnClient new
>   username: 'john' password: 'secret';
>   delete: 'http://www.drgeo.eu/drawings/johnsbook/drawing1'.
>
> "List my drawings"
>
> ZnClient new
>   username: 'john' password: 'secret';
>   get: 'http://www.drgeo.eu/drawings/johnsbook/'.
>
>
> The server side would not be that much work either: have a look at how the ZnMonticelloServerDelegate class (to be combined with a ZnServer). This implements a comparable protocol.
>
> HTH,
>
> Sven
>
>
>

> Well, aside from being a bit complex, ftp is also quite dated, and
> question is how many users would like to save to ftp or have ftp
> accounts. Maybe then WebDAV, it can be served by most web servers?
>
> Davorin Rusevljan
> http://www.cloud208.com/
>
>> On Dec 3, 2011 2:07 PM, "Hilaire Fernandes"
>> <[hidden email] <mailto:[hidden email]>> wrote:
>>
>> Thanks very much for your tips and examples, it is very valuable. Thanks
>> a lot.
>>
>> On the server side I want to be server neutral, and use what ever
>> resource is there: Apache, FTP. And may be I don't want to build a
>> specific Smalltalk server, at least for now.
>> Is it possible to use FTP client in Pharo?
>>
>> Hilaire

> Hilaire
>
> if you have a simple solution for the server side I would be interested because it would be a cool example for the chapter on Zinc.
>
> Stef
> On Dec 3, 2011, at 11:45 AM, Sven Van Caekenberghe wrote:
>
>>
>> "List my drawings"
>>
>> ZnClient new
>>  username: 'john' password: 'secret';
>>  get: 'http://www.drgeo.eu/drawings/johnsbook/'.
>>
>>
>> The server side would not be that much work either: have a look at how the ZnMonticelloServerDelegate class (to be combined with a ZnServer). This implements a comparable protocol.
>
>
>

> Le 03/12/2011 17:46, Janko Mivšek a écrit :
>> WebDAV has additional advantage that is supported in many desktop apps
>> like MS Office and LibreOffice. It essentially enables you to "save to
>> the web" directly.
>>
>> For instance you can open an attachment in Aida/Scribo, edit it and save
>> directly back to that attachment. No need to save localy, delete old
>> attachment and attach back new one.
>
>
> Are you relying on the Zinc class library to access WebDav resources.
>
> One day it will be nice to have a dedicated Smalltalk web server, so
> DrGeo sketches could be rendered, updated, managed à la Smalltalk.

> S, Hilaire Fernandes piše:
>
>> Janko Mivšek a écrit :
>
>>> WebDAV has additional advantage that is supported in many desktop apps
>>> like MS Office and LibreOffice. It essentially enables you to "save to
>>> the web" directly.
>>>
>>> For instance you can open an attachment in Aida/Scribo, edit it and save
>>> directly back to that attachment. No need to save localy, delete old
>>> attachment and attach back new one.
>
>> Are you relying on the Zinc class library to access WebDav resources.

> Le 04/12/2011 10:39, Stéphane Ducasse a écrit :
>
>>> One day it will be nice to have a dedicated Smalltalk web server, so
>>> DrGeo sketches could be rendered, updated, managed à la Smalltalk.
>>
>> I do not get your question.
>> Zinc, Swazoo, seaside are web servers.
>
> I meant writing a dedicated Dr. Geo Web application using one of these
> Smalltalk servers.
>

> I try
>
> ZnClient
>  get: 'http://icp.ge.ch/co/plonecoudriers/maths/drgeo/'
>  username: 'hilaire' password: 'xxx'
>
> but I only get the content of the rendered page.
> How can I fetch the file list.
>
>
> From Gnome, I added in the file manager a distant server
> dav://[hidden email]/co/plonecoudriers/maths/drgeo
> and it give me back the listed file.