W3C home > Mailing lists > Public > public-webrtc@w3.org > July 2013

Re: URL.createObjectURL() for DataChannels

From: Peter Thatcher <pthatcher@google.com>
Date: Tue, 16 Jul 2013 17:28:57 -0700
Message-ID: <CAJrXDUHxfiRkRrXs3AK25W9uAFHhwp-QNT_NCjY6Zi99g=LCAw@mail.gmail.com>
To: "piranna@gmail.com" <piranna@gmail.com>
Cc: Harald Alvestrand <harald@alvestrand.no>, Silvia Pfeiffer <silviapfeiffer1@gmail.com>, public-webrtc <public-webrtc@w3.org>
Looks like none of that code uses WebRTC.


On Tue, Jul 16, 2013 at 5:22 PM, piranna@gmail.com <piranna@gmail.com>wrote:

> https://github.com/PeerCDN
>
> second result on Google :-) Only that the core is not published, on their
> page they talk about they didn't finished to think about the bussiness
> model but they are interested on free it (make sense being javascript...)
> El 17/07/2013 02:18, "Peter Thatcher" <pthatcher@google.com> escribió:
>
> Really?  That would be great.  Do you have a link?
>>
>>
>> On Tue, Jul 16, 2013 at 5:12 PM, piranna@gmail.com <piranna@gmail.com>wrote:
>>
>>> Similar to PeerCDN, you say? I believe they have the code on GitHub...
>>> El 17/07/2013 02:08, "Peter Thatcher" <pthatcher@google.com> escribió:
>>>
>>> That's pretty cool.  Has anyone done something a little more
>>>> open-source-ish so that piranna@gmail.com and others interested can
>>>> see how it could be done?
>>>>
>>>>
>>>> On Tue, Jul 16, 2013 at 4:58 PM, Silvia Pfeiffer <
>>>> silviapfeiffer1@gmail.com> wrote:
>>>>
>>>>> I thought that's exactly what these guys do:
>>>>> http://gigaom.com/2013/03/28/peercdn-p2p-cdn/
>>>>>
>>>>> On Wed, Jul 17, 2013 at 9:42 AM, Peter Thatcher <pthatcher@google.com>
>>>>> wrote:
>>>>> > Although it may have had some details incorrect, I think the general
>>>>> idea is
>>>>> > an interesting one:  could web page resources (such as images) be
>>>>> loaded
>>>>> > through a the data channel?
>>>>> >
>>>>> > I can think of a few ways that might be accomplished.  But before I
>>>>> think
>>>>> > too much about it:  has anyone else spent some time thinking about
>>>>> how it
>>>>> > could be done and under what circumstances it could be useful?
>>>>> >
>>>>> >
>>>>> >
>>>>> > On Tue, Jul 16, 2013 at 5:46 AM, Harald Alvestrand <
>>>>> harald@alvestrand.no>
>>>>> > wrote:
>>>>> >>
>>>>> >> On 07/15/2013 11:32 AM, piranna@gmail.com wrote:
>>>>> >>>
>>>>> >>> With URL.createObjectURL() you can create a temporal URL for
>>>>> example
>>>>> >>> from a getUserMedia() video and attach it to a <video> tag, or you
>>>>> can
>>>>> >>> use it with a Javascript fragment of code inside a Blob object and
>>>>> >>> give it to an inline WebWorker (also from inside a file:// scheme).
>>>>> >>
>>>>> >>
>>>>> >> Sorry, I can't parse that description.
>>>>> >> - It's "temporary", not "temporal"
>>>>> >> - There aren't Javascript fragments inside Blob objects
>>>>> >> - I don't know what you mean by "give it to an inline WebWorker".
>>>>> >>
>>>>> >>
>>>>> >>>
>>>>> >>> My idea is to be able to do the same but with WebRTC DataChannels.
>>>>> >>> This way, they could be accesed using an iframe location or similar
>>>>> >>> (also a <video> tag if required) using nested URLs this way:
>>>>> >>>
>>>>> >>> iframe.location = "http:blob:<random-blob-UUID>/index.html"
>>>>> >>
>>>>> >>
>>>>> >> This URL is malformed, unless I've forgotten everything I know
>>>>> about HTTP
>>>>> >> URLs.
>>>>> >> If you want an URL that accesses some protocol other than HTTP,
>>>>> please
>>>>> >> don't use HTTP URLs.
>>>>> >>
>>>>> >>
>>>>> >>>
>>>>> >>> This would allow literally surf over webpages hosted on the other
>>>>> peer
>>>>> >>> or whatever other thing you can do with a normal URL on the browser
>>>>> >>> without needing to reimplement them, just changing the TCP/HTTP
>>>>> >>> transport for the datachannel itself, and also maybe it would be
>>>>> >>> integrated directly on the browser (via plugin?) so it would run on
>>>>> >>> the main document setting that URL directly in the URL address bar.
>>>>> >>
>>>>> >>
>>>>> >> Unfortunately HTTP has the concept of an end-of-page (unless you
>>>>> use one
>>>>> >> of the infinite-document tricks that people have been using while
>>>>> waiting
>>>>> >> for webchannels to become available).
>>>>> >>
>>>>> >>>
>>>>> >>> For security, it would be required that only connect to
>>>>> DataChannels
>>>>> >>> whose protocol attribute is set and it's equal to the scheme we are
>>>>> >>> trying to use on it.
>>>>> >>
>>>>> >>
>>>>> >> Please try to reformulate what you want to do rather than trying to
>>>>> >> express it in terms of HTTP; HTTP just doesn't work that way.
>>>>> >>
>>>>> >>
>>>>> >>>
>>>>> >>>
>>>>> >>> --
>>>>> >>> "Si quieres viajar alrededor del mundo y ser invitado a hablar en
>>>>> un
>>>>> >>> monton de sitios diferentes, simplemente escribe un sistema
>>>>> operativo
>>>>> >>> Unix."
>>>>> >>> – Linus Tordvals, creador del sistema operativo Linux
>>>>> >>>
>>>>> >>
>>>>> >>
>>>>> >
>>>>>
>>>>
>>>>
>>
Received on Wednesday, 17 July 2013 00:30:05 UTC

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