don't mind the "It just stops" in my previous post. Forgot to remove it.
On Jul 7, 2:55 pm, Bob Messiaen <[email protected]> wrote: > Hi, > > We use turbogears2 via cherrypy. I know this setup is not very common. > > I did a capture with wireshark and saw nothing strange: > All expected packets were being transferred from the device running > the web app to my pc. > No communication errors, ... > This all happens before you can choose where to store the file. > If you then wait +- 10 seconds, select a location and press "save", > the problem occurs > IE stops saving the file after 1 second (94 kb downloaded in 1 > second ...). > > As for the generator: It doesn't seem to fail. Never got an exception > when i put a try/except arround it. > It just stops > > If the data is returned at once, it works ok in all cases. > > Bob > > On Jul 6, 6:39 pm, "Diez B. Roggisch" <[email protected]> wrote: > > > On Tuesday, July 06, 2010 11:54:34 Bob Messiaen wrote: > > > > Hi, > > > > I'm having problems with downloading a large file with internet > > > explorer (IE8 in my case). > > > Once the "File download" dialog appears and you choose Save, you can > > > point the location where to save the file. Depending on how much time > > > i spend, selecting the "save to" location, my file gets only partially > > > saved. > > > > works ok with other browsers. > > > > The response i'm creating is not a string but a generator. > > > As i have spend some time looking for a solution i ran into this > > > article which probably has something to do with my problem: > > >http://www.cherrypy.org/wiki/ReturnVsYield > > > > Some of the code i'm using. > > > Controller code: > > > > @expose() > > > @handle_exception('/configuration/device/backup') > > > def export(self, **kwargs): > > > > return filedownloader(octet_stream = file_content, > > > filename = "test.tgz", > > > content_type = 'application/x-gzip') > > > export._cp_config = {'response.stream': True} > > > > filedownloader: > > > > from itertools import izip_longest > > > def grouper(n, iterable, fillvalue=None): > > > "grouper(3, 'ABCDEFG', 'x') --> ABC DEF Gxx" > > > args = [iter(iterable)] * n > > > return izip_longest(fillvalue=fillvalue, *args) > > > > def string_chunks(octet_stream, chunck_size): > > > for chunk in grouper(chunck_size, octet_stream): > > > yield "".join(x for x in chunk if x is not None) > > > > def filedownloader(octet_stream, filename='output.txt', > > > content_type='text/plain', chunck_size=8192*2, inline=False): > > > addFileDownloadHeaders(content_type, filename, inline) > > > return string_chunks(octet_stream, chunck_size) > > > > I'm using CherryPy 3.1.2, Turbogears 2.1 > > > This makes no sense to me - TG2.1 has nothing todo with Cherrypy. > > > From what I gather, the problem seems to occur if the generator fails. I > > suggest you put a proxy like tcpmon in between your browser & webapp, and > > see > > what goes over the wire. Also, what happens if you return the data at once, > > and what happens if you put exception-catching code around the generator, > > and > > dump whatever exception is created to some logfile. > > > Diez -- You received this message because you are subscribed to the Google Groups "TurboGears" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/turbogears?hl=en.
