@cdbaron this was a sneaky one, but I've found it. I actually think this 
one is a very old bug from 2016 and I think it might be affecting my 
applications as well. 


A segunda-feira, 14 de fevereiro de 2022 à(s) 17:39:21 UTC, cdbaron 
escreveu:

> Hi Massimo,
>
> Thanks for replying, this issue is driving me a little crazy...
>
> * I noticed the change in behavior when updating from Version 
> 2.19.1-stable to the github version of the end of December 2021 (before 
> version 2.22.1)
> * After this, I downloaded version 2.21.1 from web2py.com and it worked 
> fine.
> * Then with version 2.22.1 I continue with this problem.
> * Yes, this behavior change was only detected when I declared a default 
> application in routes.py in the root directory of web2py.
> * Yes, if I upload a file the download link doesn't work, and the form 
> itself can't display the image.
> * The file is uploaded correctly and is in the correct directory.
> * If I delete the routes.py file everything works fine and the file that I 
> uploaded when I had declared the default application can be downloaded 
> without problems, the link (with the name of the application in the url) 
> works fine.
> * one more thing, when I have the default application declared, if I 
> upload an image with a.jpeg filename everything works fine, with any other 
> aa.jpeg filename for example the download link gives me a 400 error.
>
> I'm going to try to attach a zip file to a simple example application. A 
> single table with a single field and a controller with a single function 
> that creates a form.
>
> https://www.dropbox.com/s/46bu3wjhjexathu/myapp.zip?dl=0
>
>
> El domingo, 13 de febrero de 2022 a las 22:44:19 UTC+1, Massimo Di Pierro 
> escribió:
>
>> I am very confused by this. I cannot find any change that could cause 
>> this change of behavior. Let me summarize to make sure I am understanding.
>>
>> You observed a change of behavior between 2.21.1 and 2.22 1.
>> The change of behavior only manifests when you declare a default app in 
>> routers.py
>> The change of behavior consists of the fact that, if you upload a file 
>> using a form, the link to download the file does not work.
>> You can confirm that the file is there and the link works if no default 
>> app in routers is provided.
>>
>> Is this all correct? If yes. I will debug more. If you could provide a 
>> minimalist app to reproduce it would save me some time.
>>
>> Massimo
>>
>>
>>
>> On Wednesday, 9 February 2022 at 07:21:40 UTC-8 cdbaron wrote:
>>
>>> Now from github I can successfully download web2py.
>>>
>>> But I have a problem with a form with a field of type upload.
>>>
>>> With web2py 2.21.1 it works fine, but with version 2.22.1 it doesn't 
>>> work. I have tested with python 3.7 and 3.8
>>>
>>> I already posted a query a few days ago, but I haven't had any response, 
>>> I apologize for posting the same thing again.
>>>
>>> When I upload any image with a form, for example the one below, when 
>>> downloading the image I get a 400 bad request error
>>>
>>> def upload_img():
>>>     record = db(db.t_upload).select().first()
>>>     form = SQLFORM(
>>>         db.t_upload,
>>>         record,
>>>         upload=URL('default', 'download')
>>>     )
>>>
>>>
>>> I think it is some modification in web2py after publishing version 2.21.1
>>>
>>> I have tried to attach a .w2p file with the myapp application but it 
>>> does not allow me to upload this type of file.
>>>
>>> The application works perfectly if I do NOT use a routes.py file in the 
>>> web2py root directory.
>>>
>>> http://127.0.0.1:8000/myapp/upload/upload_img (Works fine)
>>>
>>> But with the file routers.py with this content:
>>>
>>> routers = dict(
>>>     BASE=dict(
>>>         default_application='myapp',
>>>     ),
>>> )
>>>
>>> The application does not work well, there is a 400 error when 
>>> downloading the
>>> image uploaded with the form
>>>
>>> http://127.0.0.1:8000/upload/upload_img (Doesn't work right)
>>>
>>> This 400 error also occurs whenever the image is used, not just on the 
>>> form.
>>>
>>> I am doing something wrong?
>>
>>

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