[aerogear-dev] Differences between Firefox OS "native" Push lib and AeroGear's Push adapter

Lucas Holmquist lholmqui at redhat.com
Fri Feb 14 08:06:21 EST 2014


still exploring
On Feb 13, 2014, at 3:39 PM, Sebastien Blanc <scm.blanc at gmail.com> wrote:

> 
> 
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> On Wed, Feb 12, 2014 at 2:30 PM, Lucas Holmquist <lholmqui at redhat.com> wrote:
> i might have a couple thoughts, but i need to try some things out first
> 
> Any update on that or does the solution proposed by Matzew (using  encodeURIComponent() ) could be enough ? 
> 
> On Feb 12, 2014, at 3:53 AM, Sebastien Blanc <scm.blanc at gmail.com> wrote:
> 
>> 
>> 
>> 
>> On Tue, Feb 11, 2014 at 7:15 PM, Sebastien Blanc <scm.blanc at gmail.com> wrote:
>> Ok,
>> I've been doing some tests by using the PushEndpoint as device token. For registration it works but I just faced an issue by trying to unregister because the URL for the DELETE looks like : 
>> 
>> https://judconpush-sblanc.rhcloud.com/rest/registry/device/https://updates.push.services.mozilla.com/update/my_personnal_psuhendpoint_id [
>> 
>> And the REST endpoint get a bit crazy by the extra "/" present in the endpoint URL. Therefore, I think we must just use the last URL fragment as deviceToken.
>>  
>> Ok answering to myself ;) That won't work neither since if we do that UPS won't have the compllete push endpoint URL. 
>> So how do we deal with that ?
>> 
>> 
>> On Thu, Feb 6, 2014 at 3:27 PM, Matthias Wessendorf <matzew at apache.org> wrote:
>> 
>> 
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>> On Thu, Feb 6, 2014 at 3:11 PM, Sebastien Blanc <scm.blanc at gmail.com> wrote:
>> 
>> 
>> 
>> On Thu, Feb 6, 2014 at 12:28 PM, Matthias Wessendorf <matzew at apache.org> wrote:
>> 
>> 
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>> On Wed, Feb 5, 2014 at 11:52 PM, Matthias Wessendorf <matzew at apache.org> wrote:
>> 
>> 
>> 
>> On Wed, Feb 5, 2014 at 11:22 PM, Sebastien Blanc <scm.blanc at gmail.com> wrote:
>> Hi,
>> While playing today with my Firefox Device and its native Simple Push support I noticed  some differences between our implementation and the native Push regarding the success callback after a register : 
>> 
>> 
>> 
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>> //Native FFOS Push 
>> broadcastRequest = navigator.push.register();
>> broadcastRequest.onsuccess = function (event) {
>>       broadcastEndpoint = broadcastRequest.result; // only contains the pushURL
>>  }
>> 
>> 
>> //Aerogear Push Adapter
>> broadcastRequest = navigator.push.register();
>> broadcastRequest.onsuccess = function (event) {
>>       broadcastEndpoint = broadcastRequest.result.pushEndpoint;
>>       channelID = broadcastRequest.result.channelID;
>>       version = broadcastRequest.result.version; 
>>       status = broadcastRequest.result.status   
>>  }
>> So, the AeroGear Push exposes much more in the callback that it should suppose to do : just exposing the pushEndpoint.
>> 
>> The reason we do that I suppose, but Luke or Kris could confirm that, is that we thought respecting the SPS protocol, which indeed returns a whole object containing all the info. It is just that the Native Push Client API filter that out in the callback response.
>> 
>> 
>> Did they change that recently? Or was theirs always like it is now ?
>> 
>>  
>> After discussing that on the #push channel with the Mozilla people they confirmed me that we should only expoe the pushEndpoint.
>> 
>> 
>> yep, I agree on changing our JS polyfil 
>> 
>>  
>> 
>> If we keep it as is, this can be problematic when we want to use the same code both for native and with the adapter when, for instance, registering to the UPS : 
>> 
>> broadcastRequest = navigator.push.register();
>> broadcastRequest.onsuccess = function (event) {
>>       broadcastEndpoint = event.target.result;
>>       var broadCastSettings = {
>>           metadata: {
>>               deviceToken: broadcastEndpoint.channelID,
>>               simplePushEndpoint: broadcastEndpoint.pushEndpoint  
>>           }          
>>        }
>>      UPClient.registerWithPushServer(broadCastSettings);
>> }
>> 
>>  
>> This won't work with the native push since "broadcastEndpoint.channelID" will be undefined. 
>> 
>> sweet :-) 
>>  
>> 
>> So I propose that we change the behaviour, to return only the pushEndpoint in the callback, even if that means a bit of String manipulation when we want to perform the registration to the UPS : 
>> 
>> var broadCastSettings = {
>>         metadata: {
>>             deviceToken: broadcastEndpoint.substr(broadcastEndpoint.lastIndexOf('/') + 1),
>>             simplePushEndpoint: broadcastEndpoint
>>                    }
>>          }
>> 
>> 
>> well, that's not really good for security reasons, since their looooong 'substring' was done for that. Also that's just redundant.
>> 
>> The I guess, the deviceToken (channelID registration) might be a bit bogus, for SimplePush. Let me think about it....
>> 
>> 
>> Right now we use the channelID as the deviceToken, but we should not really 'leak' the channelID (see [1]), so I guess the here proposed change makes sense. Don't recall exactly why we did it in the past, but yeah - let's change it.
>> 
>> 
>> Thinking about the consequence: I think we should use store the value of the returned 'pushEndpoint' string as our device-token. At the end the device-token is really the thing that identifies a device w/in the target network. Apple/Google uses a unique string, and if Mozilla uses a URL, that's totally fine.
>> 
>> Reading the protocol definitions (see [1]) for the 'endpoint' I think it is fair to use that (unique) URL string as the device-token; And we could use this token value as well for the unregister calls, instead of the channelIDs. 
>> 
>> After reading your comment  on the PR https://github.com/aerogear/aerogear-js/pull/105#issuecomment-34324732 I understand that you just want to use the deviceToken and not pass the simplePushEndpoint to UPS anymore, is that right ? 
>> 
>> 
>> yep
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>> 
>> 
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>>  
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>> Any thoughts ? 
>> 
>> 
>> -Matthias
>> 
>> [1] https://wiki.mozilla.org/WebAPI/SimplePush/Protocol#Definitions
>> 
>> 
>>  
>> 
>> That said, we still have no clue how to proper clean-up 'out dated' channels, since the SimplePush Server/Protocol is silent on that (unlike APNs / GCM). but that's really a different thread (yep, we have a future JIRA for that)
>> 
>> 
>> -M
>> 
>>  
>> wdyt ?
>> 
>> Seb
>> 
>> 
>> ps : our SPS Server implementation stays correct and returns what should be returned, it's really just the client part and how we expose the result
>> 
>> 
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>> 
>> 
>> 
>> -- 
>> Matthias Wessendorf 
>> 
>> blog: http://matthiaswessendorf.wordpress.com/
>> sessions: http://www.slideshare.net/mwessendorf
>> twitter: http://twitter.com/mwessendorf
>> 
>> 
>> 
>> -- 
>> Matthias Wessendorf 
>> 
>> blog: http://matthiaswessendorf.wordpress.com/
>> sessions: http://www.slideshare.net/mwessendorf
>> twitter: http://twitter.com/mwessendorf
>> 
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>> 
>> 
>> -- 
>> Matthias Wessendorf 
>> 
>> blog: http://matthiaswessendorf.wordpress.com/
>> sessions: http://www.slideshare.net/mwessendorf
>> twitter: http://twitter.com/mwessendorf
>> 
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