thx yarko for your detailed answer.
I have not written code so far, I have been using the administrative
interface provided by web2py to manage the records in the DB.
I am going to generate another test showing this kind of behaviour
with a more regular filename.
On Jun 17, 11:51 pm, Yarko Tymciurak <resultsinsoftw...@gmail.com>
wrote:
> On Jun 17, 4:59 pm, Swell <swel...@googlemail.com> wrote:
>
> > There is nothing suspicious here about the filename ( it was an
> > example here, but it has the same effect with a file containing the
> > description oof the paper + all the authors ). I am almost sure that
> > it is related to size of the path + filename that is not correctly
> > handled . But i can't spot where is it in the source code .
>
> OK - let's go back to your error report:
>
> /---------
> File "C:\Users\M\Desktop\web2py_src\web2py\gluon\sql.py", line 2699,
> in store
> dest_file = open(pathfilename, 'wb')
> IOError: [Errno 2] No such file or directory: 'C:\\Users\\M\\Desktop\
> \web2py_src\\web2py\\applications\\Library/databases\\..\\uploads\
> \books.file.acf7b28c26fb29c3.6161616161616161616161616161616161616161616161
> 616161616161616161616161616161616161616161616161616161616161616161616161616
> 161616161616161616161616161616161616161616161616161.pdf'
> \----------
>
> To begin with - this is a REALLY suspicious filename; 61 repeated is
> not what I would expect from the store() code (below).
> In fact, have a look atwww.asciitable.com: 61 is the character code
> for "="; I suspect you have a bug in your controller.
>
> Why that would generate this filename is yet another question.
>
> Now let's look at it in the context of the code the error quotes:
>
> /------
> def store(self, file, filename=None, path=None):
>
> # have you defined a custom_store?
> # -- if you have, then you are doing this!
> if hasattr(self,'custom_store'):
> return self.custom_store(file,filename,path)
> if not filename:
> filename = file.name
>
> # the fact that your path has NOT had these replaced, I think
> # you must NOT be traversing this code:
> filename = os.path.basename(filename.replace('/', os.sep)\
> .replace('\\', os.sep))
>
> ....
> # the pertinent naming stuff is here: the filename is encoded
>
> uuid_key = web2py_uuid().replace('-', '')[-16:]
>
> # this just obfuscates the name (and makes it longer - can make
> it considerably longer).
> # for example, if your passed in filename is 235 characters,
> the
> # encoded_filename version is 940 characters long!!!
>
> encoded_filename = base64.b16encode(filename).lower()
>
> # this makes the stored name composed of:
> # table name, field name, key, and that really long encoded
> name;
> newfilename = '%s.%s.%s.%s' % \
> (self._tablename, self.name, uuid_key, encoded_filename)
>
> # this limits the filename length, in this case truncating
> # the encoded_filename part:
> newfilename = newfilename[:200] + '.' + extension
> if self.uploadfield == True:
> if path:
> pass
> elif self.uploadfolder:
> path = self.uploadfolder
> else:
> path = os.path.join(self._db._folder, '..', 'uploads')
> if self.uploadseparate:
> path = os.path.join(path,"%s.%s" % (self._tablename,
> self.name),uuid_key[:2])
> if not os.path.exists(path):
> os.makedirs(path)
> pathfilename = os.path.join(path, newfilename)
>
> # because this is attempting to open a file for write/
> binary,
> # and since you are experiencing an uncaught exception
> # which _could_ be triggered by filename size, other O/S
> related things,
> # this open() call should really be in a try / except -
> to catch
> # the error message from "normal users" --- but the only
> reason
> # a write open would fail: permissions, file path
> errors (e.g. code)
> dest_file = open(pathfilename, 'wb')
> shutil.copyfileobj(file, dest_file)
> dest_file.close()
> return newfilename
> \-----------
>
> In sum, after working through this I suspect it is your code
> (somewhere) which is causing your problems; I think you should debug
> it, and give us enough information to help you without asking us to go
> on a blind hunting expedition.
>
> Regards,
> - Yarko
>
>
>
>
>
> > Am i the only one to see that issue? ( one thing also iis that i am
> > running web2py on windows , but i dont think that it is the issue
> > here )
>
> > M
