Forget it. (If this would be a real newsgroup I would cancel the
article.)

Forgot about the problems on localhost.


Stefan Scholl <[email protected]> wrote:
> I had to do something perverted to save the project: I make a
> local redirect to a PHP script, which uses readfile
> <http://de.php.net/manual/en/function.readfile.php>. No problem
> there. (Retrieving the original file name and content-type in
> web2py.)
> 
> It's only rocket. And it was reported by a co-worker and a
> customer.
> 
> One silly idea: What if Rocket has problems with some
> proxies/firewalls? The customer has a broken proxy which caused
> different problems for other projects.
> 
> I don't know about any proxy at work, but it could be that they
> reroute everything on port 80 through a proxy without me knowing.
> (Ignore the non-technical implications of this assumption.)
> 
> 
> Massimo Di Pierro <[email protected]> wrote:
>> I just tried with chrome and osx and I cannot reproduce the problem (I
>> tried with a 166MB file).
>> 
>> TIm, who made rocket, also claims he tried this extensively on windows
>> and cannot reproduce the problem.
>> 
>> I do not doubt you experience this issue. In order to try isolate
>> better what may be causing it... is there anybody else having this
>> problem with large files download?
>> 
>> Massimo
>> 
>> On Jun 20, 2:53 am, Stefan Scholl <[email protected]> wrote:
>>> Sever OS: Linux (remote, behind Apache 2.2), Windows XP (local,
>>> direct)
>>> Client OS: Windows XP
>>> Browser: Firefox 4, Internet Explorer 8
>>> Rocket version: 1.2.2
>>>
>>> All combinations break the download for big files (33 MiB),
>>> regardless of chunk_size or server.
>>>
>>> Only Internet Explorer 8 (all servers) had problems with small
>>> files (160 KiB), before increasing chunk_size for the streamed
>>> download.
>>>
>>> Made the changes to rocket.py (1.2.2), restarted web2py, and the
>>> download was still broken.
>>>
>>> By the way: One of the new examples (Dog and owner registration,
>>> with picture upload/download) doesn't use streamed download. It
>>> reads the whole file and sends it. This method doesn't work for
>>> big files, too.
>>>
>>> Massimo Di Pierro <[email protected]> wrote:
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> > Can you make a list of combinations
>>>
>>> > browser name, version, server os, web server
>>> > FF, 4, Windows 7, Rocket
>>> > ...
>>>
>>> > for which you experienced the problem?
>>>
>>> > can you also try the following:
>>> > 1) in the rocket.py code replace
>>>
>>> >   'HTTP/1.1 ' with 'HTTP/1.0 '
>>>
>>> > and replace
>>>
>>> >   environ['SERVER_PROTOCOL'] = request['protocol']
>>>
>>> > with
>>>
>>> >   environ['SERVER_PROTOCOL'] = "1.0"
>>>
>>> > Looks like acts as if the protocol of response is the same as the
>>> > request but always declare the protocol of the response to be 1.1 even
>>> > if the request is 1.0. This may result in keep-alive connections
>>> > ignored by the browser. Perhaps this is part of the problem?
>>>
>>> > On Jun 17, 1:35 pm, Stefan Scholl <[email protected]> wrote:
>>> >> To Massimo and the list/group:
>>>
>>> >> You asked on Reddit if the only constant is the browser. No it
>>> >> isn't. But it was the browser which had the problem first, with
>>> >> smaller files.
>>>
>>> >> For smaller files it was enough to raise the chunk_size. IE8 is
>>> >> slow, maybe this is the reason?
>>>
>>> >> Firefox 4 failed when I tried to download a 33 MiB file remotely.
>>> >> IE8 failed for anything above 64 KiB on localhost.
>>>
>>> >> It's almost as if Rocket is so fast because it sends without
>>> >> regard for any receiver. Direct (localhost) or behind a proxy
>>> >> (Apache 2.2 on the remote Linux server).
>>> >> Don't know how this could happen. HTTP isn't ZModem. ;-)
>>>
>>> >> Stefan Scholl <[email protected]> wrote:
>>> >> > I have a parameters_XXX.py file from the normal web2py (with
>>> >> > rocket) and used the same IP and port with anyserver.py+Tornado
>>> >> > (and the other one stopped, of course).
>>>
>>> >> > Tested with web2py 1.91.6. Were there any changes regarding this?
>>>
>>> >> > (I'm still very reluctant to upgrade this project.)
>>>
>>> >> > Massimo Di Pierro <[email protected]> wrote:
>>> >> >> Try this:
>>>
>>> >> >> python
>>> >> >>>>> from gluon.main import save_password
>>> >> >>>>> save_password(raw_input('admin password: '),XXX)
>>>
>>> >> >> This will create a parameters_XXX.py file. It must be in the main
>>> >> >> web2py folder. Caveats, the admin interface is disabled if you are not
>>> >> >> form localhost and you are not using https.
>>> >> >> Hope this helps. Hope to have you back on the mailing list.
>>>
>>> >> >> On Jun 17, 8:43 am, Stefan Scholl <[email protected]> wrote:
>>> >> >>> Now I can't access the admin interface, because the password
>>> >> >>> isn't set. (It isn't reading the stored password.)
>>>
>>> >> >>> Stefan Scholl <[email protected]> wrote:
>>> >> >>> > OK, it was Rocket.
>>>
>>> >> >>> > Tested it with the old web2py and Tornado 1.2.1 via anyserver.py
>>> >> >>> > and the download is OK.
>>>
>>> >> >>> > Stefan Scholl <[email protected]> wrote:
>>> >> >>> >> The higher value for chunk_size didn't work with a 33 MiB file. 
>>> >> >>> >> Even
>>> >> >>> >> in Firefox 4.
>>> >> >>> >> So I tried 1.96.4 (Rocket 1.2.2) on Windows XP.
>>>
>>> >> >>> >> Made a new and simple app (dtest). The download there uses
>>> >> >>> >> "response.download(request,db)" as well.
>>>
>>> >> >>> >> 1 simple table: db.define_table('stuff', Field('file', 'upload'))
>>>
>>> >> >>> >> Upload of the 33 MiB file via db admin, content listed on
>>> >> >>> >>http://127.0.0.1:8001/dtest/default/data/select/stuff(default
>>> >> >>> >> function "data" with "return dict(form=crud())". Download with
>>> >> >>> >> Internet Explorer 8 (after removing the tag that switches to 
>>> >> >>> >> "Chrome
>>> >> >>> >> Frame", to have a realistic test like "normal" users).
>>>
>>> >> >>> >> Download was broken. A few KiB were missing. This was on 
>>> >> >>> >> localhost.
>>> >> >>> >> Remote tests have even worse results.
>>>
>>> >> >>> >> On 6 Mai, 17:51, Massimo Di Pierro <[email protected]> 
>>> >> >>> >> wrote:
>>> >> >>> >>> Can you try 1.95.1
>>>
>>> >> >>> >>> On May 6, 6:03 am, Stefan Scholl <[email protected]> wrote:
>>>
>>> >> >>> >>> > The classicdownloadfunction:
>>>
>>> >> >>> >>> > defdownload():
>>> >> >>> >>> > return response.download(request, db)
>>>
>>> >> >>> >>> > I'm developing on localhost (127.0.0.1, no SSL) and one 
>>> >> >>> >>> > strange thing
>>> >> >>> >>> > happened: Downloads in IE8 (Windows XP) were all 
>>> >> >>> >>> > corrupt/broken if
>>> >> >>> >>> > they weren't below 64KiB in size. Very easy to see with large 
>>> >> >>> >>> > images.
>>>
>>> >> >>> >>> > Using a higher value for the argument 'chunk_size' solves this
>>> >> >>> >>> > problem, up to this new maximum.
>>>
>>> >> >>> >>> > web2py 1.91.6
>>>
>>> >> --
>>> >> Web (en):http://www.no-spoon.de/-*-Web (de):http://www.frell.de/
>>> >> <!--[if IE 6]><script>for(x in document.open);</script><![endif]-->
>>>
>>> --
>>> Web (en):http://www.no-spoon.de/-*- Web (de):http://www.frell.de/
>>> <!--[if IE 6]><script>for(x in document.open);</script><![endif]-->
>> 
> 
> 


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