On Apr 28, 1:40 pm, Yarko Tymciurak <yark...@gmail.com> wrote: > have you considered filename.abc --> <uuid>.abc ?if you _always_ store the > original filename this should be ok.
uuids is how web2y always worked and still does by default. > Another alternative is to hexify the filename, then the character encoding > would be irrelevant, and this is simpler than uuid (and decodable), e.g. > ABC.abc ==> 414243.616263 This solves the problem of storing it but not the problem of downloading a file with a fancy name. We would lose the ability to search the uploaded files by filename. > ...there are probably problems with that (e.g. "."?) but maybe that's a > useful seed for someone to think on. '.' is not an issue. > The first problem I see is this (at least) doubles the filename length on > the filesystem.... which makes uuid a "nicer" solution from that > perspective. The uuid was there before and is still there. Yes the field has to be longer to retain the filename too. > On Tue, Apr 28, 2009 at 12:55 PM, mdipierro <mdipie...@cs.depaul.edu> wrote: > > > it would give more flexibility but would not solve the original > > problem. > > > On Apr 28, 12:41 pm, Álvaro Justen [Turicas] <alvarojus...@gmail.com> > > wrote: > > > On Tue, Apr 28, 2009 at 12:00 PM, mdipierro <mdipie...@cs.depaul.edu> > > wrote: > > > > > There is one issue with my solution. > > > > > If you upload a file filename.abc, it is internally renamed as lots-of- > > > > junk--filename.abc > > > > and you can download it with > > > >http://..../download/lots-of-junk--filename.abc > > > > It works on GAE too. > > > > > The problem is that URLs are validated hence filename.abc must be > > > > sanitized. I sanitize by replacing any alphanumeric char in filename > > > > with one underscore. This is fine for english files. This is not fine > > > > with filenames with foreign charsets (like chinese). > > > > > I could replace lots-of-junk--[encoded filename].abc but this may open > > > > a big can of worms. If the original file contains special chars, what > > > > is the encoding? What if the downloader does not support those chars > > > > in the filenames? > > > > > Any advice? > > > > Maybe SQLField can receive a function as an argument, something like > > this: > > > > def myfunction(f): > > > "get filename and return a customized name to my app" > > > return 'myapp_' + f.split('.')[0] + '.txt' > > > > SQLField('myfile', 'upload', filename=myfunction) > > > > SQLField can verify if filename is a function, string or True/False. > > > If it is a function, filename will be function(original-name) > > > (function have to return a string), if it is a string, filename will > > > be that string and if it is True, web2py uses original name. What do > > > you think? > > > > -- > > > Álvaro Justen > > > Peta5 - Telecomunicações e Software Livre > > > 21 3021-6001 / 9898-0141 > > > http://www.peta5.com.br/ --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "web2py Web Framework" group. To post to this group, send email to web2py@googlegroups.com To unsubscribe from this group, send email to web2py+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/web2py?hl=en -~----------~----~----~----~------~----~------~--~---
