shouldn't this question be raised to google than web2py ?
if this is unsolvable, wrap the entire thing in a try except raising a 
HTTP(404) to avoid logging the error.



On Wednesday, November 20, 2013 4:23:54 PM UTC+1, BlueShadow wrote:
>
> Hi,
> to increase my speed I have a fast downloadfunction for my images:
> def fast_download():
>    session.forget(response)
>    cache.action(time_expire=604800)(lambda: 0)()
>    # very basic security (only allow fast_download on 
> your_table.upload_field):
>    if not request.args(0).startswith("Images."):
>        return download()
>    
>    #---------check which picture we are allowed to display--------
>    #----get the db entry and determine whether it is a small or big 
> pic----
>    rows=db(db.Images.thumb == request.args(0)).select()
>    try:
>        rows[0]
>    except:
>        small=0
>        rows=db(db.Images.Image == request.args(0)).select()
>    else:
>        small=1
>
>    #print rows[0],small
>    row=rows[0]
>    if ...#some stuff to determine which image is shown (not relevant)
>
>
>    from PIL import Image
>    img=row.thumb
>    filename = os.path.join(request.folder,'uploads',img)
>
>        return response.stream(open(filename,'rb'))
>
> which works quite good.
> My Problem is that the google image bot tries quite frequently to access 
> the function directly. which gives an out of range error. (268 in the last 
> 3 weeks)
> part of one error ticket:
>
> File "/home/www-data/web2py/applications/Movie_Alarm/controllers/default.py" 
> <https://www.movie-alarm.de/admin/edit/Movie_Alarm/controllers/default.py>, 
> line 327, in fast_download
>     row=rows[0]
>
>
> HTTP_FROM:
> googlebot(at)googlebot.com
>
>
> HTTP_USER_AGENT:
> Googlebot-Image/1.0
> REQUEST_URI:
> /fast_download/Images.thumb.a791255ac1014c88.7466d626e61696c2e6a7067.jpg
>
>
> I tried to put fast_download in the disallowed part of the robots.txt
> but it seems to have no effect.
> and I hate having so many errors in my error database :)
> have you guys any ideas how I can prevent this from happening again?
>

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