Hi Guido,
if the DataResource.isPublic flag is set to Y then the system will not run the
permission service and the resource will be available to all the users.
Otherwise the permission service will be executed before the resource is
streamed back to the user. As you have mentioned the default permission service
is genericContentPermission but you can create a new custom one and use it in
place of genericContentPermission by setting the following property:
stream.permission.service
in applications/content/config/content.properties
My bet is that you will need to create your custom permission service and it
shouldn't be a difficult task because you can focus on your specific
requirements and choose to only deal with them; I am sure you will get
help/suggestion from this list if you will need it; at this point my only
suggestion is: before you start make sure that your use cases are clear and
well defined (what are the actors and what are the content types, and what are
the rules to give access to content to actors); as soon as you will have them
it will be easier to implement a service like:
<service name="customContentPermission" engine="..." auth="true"
location="..." invoke="customContentPermission">
<description>Custom Content Permission Service</description>
<implements service="permissionInterface"/>
<attribute name="contentId" type="String" mode="IN" optional="true"/>
</service>
In it you will receive(when the "stream" uri is hit) the "userLogin" object
and the "contentId" you will run your custom logic and then you will return the
Boolean hasPermission field back.
I hope it helps,
Jacopo
On May 17, 2011, at 11:42 AM, Esch, Guido wrote:
> not exactly. The requirement might differ on the different types of content.
> For digital download content, you are right. For all other content types it
> should be accessible for anyone. (e.g. the standard fancy flash banner, every
> shop needs)
>
>
>
>
>
> Am 17.05.2011 um 07:03 schrieb Hans Bakker:
>
> If you make sure the link can only be accessed by loggedin users, and
> the download is linked to an completed order, security should be fine?
>
> On Mon, 2011-05-16 at 14:04 +0000, Esch, Guido wrote:
> Hi all,
>
>
> currently i'm struggling with the handling of digital download products.
> (Version is 1057550 but would guess we will merge to current trunk very soon
> again) The "normal" handling works fine. Configuring the product, adding the
> content, buying, download using the "downloadDigitalProduct" method works as
> intended.
> But in my system the contend is accessible using the "stream" url. (e.g.
> /content/control/stream?contentId=12231) So if somebody knows ofbiz he might
> get access to all downloads by simply guessing the content ids. There seems
> be a way using a custom genericContentPermission Service. But to be honest,
> for something like digital downloads i would guess there is a standard
> mechanism like the one in downloadDigitalProducts which protects this files
> in general, without writing a custom permission service. (which i haven't
> discovered yet) But if its required to write a new one, are there any
> suggestions to get this working an efficient way? I'm thinking of checking
> the ProductContentType to make sure the digital downloads are not served
> using the stream. But that sounds not very efficient to me. And it also leads
> to some leaks as soon as the configuration gets inconsistent. (For some
> reason the ProductContent is removed, but not the Content and Resource
> entity.) Not more secure but although even slower, checking the
> OrderRoleAndProductContentInfo to make the user has the permission to get
> this content, but even than, i have to ensure its a digital download content.
> My last idea, adding a custom attribute to the content when creating
> (uploading the file) the content. But that feels like a quick fix to me.
> Therefore i'm open to any suggestions.
>
> Best Regards,
>
> Guido Esch
>
> direkt gruppe
>
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>
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> This electronic mail transmission contains confidential information intended
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> --
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>
>
> Mit freundlichem Gruß
> Guido Esch
>
> direkt gruppe
>
> networks direkt GmbH
> Griegstraße 75, Haus 2
> 22763 Hamburg
> Fon: +49 (40) 88155-0
> Fax: +49 (40) 88155-5200
>
> mailto:[email protected]
> www.direkt-gruppe.de
>
>
>
>
>
>
>
>
>
>
> ________________________________
>
> Rechtliche Hinweise:
>
> networks direkt Gesellschaft fuer Informationstechnologie mbH *
> Geschaeftsfuehrer * Dipl.-Inform. (FH) Gerald Jenner * Dipl.-Ing. (FH) Kai
> Petersen * Dipl.-Inform. (FH) Nils Schultz * Sitz Hamburg * AG Hamburg HRB
> 83072 * USt-IdNr. DE812564499
>
> solutions direkt Gesellschaft fuer Loesungsentwicklung mbH *
> Geschaeftsfuehrer * Dipl.-Inform. Markus Breilmann * Dipl.-Inform. (FH) Nils
> Schultz * Sitz Hamburg * AG Hamburg HRB 83605 * USt-IdNr. DE813614829
>
> marketing solutions direkt Gesellschaft fuer innovatives Marketing mbH *
> Geschaeftsfuehrer * Karsten Kirsch * Kai Jasper Meifort * Sven Severin * Sitz
> Hamburg * AG Hamburg HRB 104217 * USt-IdNr. DE814956207
>
> Anschrift * Griegstrasse 75, Haus 2 * 22763 Hamburg
>
> Diese elektronische Nachricht enthaelt vertrauliche Informationen, die nur
> fuer die im Text bezeichneten Personen bestimmt sind. Die Nachricht ist durch
> das Briefgeheimnis geschuetzt und unterliegt gegebenenfalls den Regeln zum
> Schutz der Vertraulichkeit. Jede Benutzung, Versendung, Herstellung von
> Kopien oder Veroeffentlichung durch andere Personen ist ohne Zustimmung des
> Absenders untersagt. Wenn Sie diese Nachricht irrtuemlich erhalten haben,
> bitten wir Sie hoeflichst, sie auf Ihren Systemen zu loeschen und den
> Absender umgehend zu benachrichtigen.
>
> This electronic mail transmission contains confidential information intended
> only for the person(s) named. It is subject to the laws of mail secrecy and
> may be protected by legal privileges. Any use, distribution, copying or
> disclosure by another person is strictly prohibited without the consent of
> the sender. If this transmission has been received in error, you are kindly
> requested to delete it from your system and to contact the sender immediately.
