# WEBRick: Problem to get the multipart/form-data decoded corr **URL:** \ **Category:** Ruby\ **Created:** [August 9, 2007, 5:19pm UTC](https://www.ruby-forum.com/t/webrick-problem-to-get-the-multipart-form-data-decoded-corr/111664 "2007-08-09T17:19:17Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![flatekmonkey](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/e8c25b/32.png) [@flatekmonkey](https://www.ruby-forum.com/u/flatekmonkey)\ **Post date:** [August 9, 2007, 5:19pm UTC](https://www.ruby-forum.com/t/webrick-problem-to-get-the-multipart-form-data-decoded-corr/111664/1 "2007-08-09T17:19:17Z")
Hi list I have to admit that I feel this is a stupid question, but two days of Web search(1) and trials with WEBRick and CGI did not bring me any closer. Here is the problem: I am uploading files to my Webrick server via the standard HTTP method: the Webrick do\_POST handler than has the multipart/form-data in his req.body. As astonishing as that sounds, I have not found a way to get the file’s content out of this. I am sure there should be an easy way. BTW I have browsed the ML archives and there are some references to CGI but I just could not glue it together ☹ All help is appreciated. Robert (1) a badly known synonym for “googling” 😉 ---
**Author:** ![flatekmonkey](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/e8c25b/32.png) [@flatekmonkey](https://www.ruby-forum.com/u/flatekmonkey)\ **Post date:** [August 9, 2007, 6:08pm UTC](https://www.ruby-forum.com/t/webrick-problem-to-get-the-multipart-form-data-decoded-corr/111664/2 "2007-08-09T18:08:24Z")
> I am sure there should be an easy way. > Here’s something I found from Google. It may not be definitive, sorry, > but I think it can help! [http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/94785](http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/94785) Arle. ---
**Author:** ![flatekmonkey](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/e8c25b/32.png) [@flatekmonkey](https://www.ruby-forum.com/u/flatekmonkey)\ **Post date:** [August 9, 2007, 6:18pm UTC](https://www.ruby-forum.com/t/webrick-problem-to-get-the-multipart-form-data-decoded-corr/111664/3 "2007-08-09T18:18:26Z")
On 8/9/07, Arlen Christian Mart C. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > file’s content out of this. > > I am sure there should be an easy way. > > Here’s something I found from Google. It may not be definitive, sorry, > but I think it can help! > > [http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/94785](http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/94785) > That was indeed one of my first hits and it was useful to get the form > right, please note however that he is not doing anything with the > uploaded data :(, just sending it back. And this exactly where it hurts, I cannot glue the received data (req.body) into CGI, which would seem to do the multipart/form-data conversion just fine. Actually I would not care to save the body as such into a file and have an external converter do the job(1), if I only had such an external converer :(. Thx anyway Robert (1) even if not in Ruby, sorry for the OL in that case. ---
**Author:** ![flatekmonkey](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/e8c25b/32.png) [@flatekmonkey](https://www.ruby-forum.com/u/flatekmonkey)\ **Post date:** [August 10, 2007, 1:02am UTC](https://www.ruby-forum.com/t/webrick-problem-to-get-the-multipart-form-data-decoded-corr/111664/4 "2007-08-10T01:02:15Z")
2007/8/9, Robert D. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid): > I have to admit that I feel this is a stupid question, but two days of > Web search(1) and trials with WEBRick and CGI did not bring me any > closer. (…) Bonsoir Robert. Google didn’t help me either, but I’m using a Ruby wiki called “Soks”, which runs on WEBrick and offers file uploads. Reading the code it seems that the following should work: upload\_data = request.query[“data”] File.open(upload\_data.filename, “wb”) do |file| upload\_data.each\_data do |data| file \<\< data.to\_s end end Take a look at WEBrick::HTTPUtils::FormData. I haven’t tested it, but I HTH. Regards, Pit ---
**Author:** ![flatekmonkey](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/e8c25b/32.png) [@flatekmonkey](https://www.ruby-forum.com/u/flatekmonkey)\ **Post date:** [August 10, 2007, 10:07am UTC](https://www.ruby-forum.com/t/webrick-problem-to-get-the-multipart-form-data-decoded-corr/111664/5 "2007-08-10T10:07:50Z")
On 8/10/07, Pit C. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > Regards, > Pit I knew it would be simple, but that simple!!! Works like charm. Merci beaucoup Pit, meine Dankbarkeit wird Dir für immer nachschleifen (sorry folks for these old Viennese saying 😉 Robert ---
**Author:** ![flatekmonkey](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/e8c25b/32.png) [@flatekmonkey](https://www.ruby-forum.com/u/flatekmonkey)\ **Post date:** [August 10, 2007, 1:28pm UTC](https://www.ruby-forum.com/t/webrick-problem-to-get-the-multipart-form-data-decoded-corr/111664/6 "2007-08-10T13:28:24Z")
I thought I share the outcome of this, a very primitive file server we need for some file transfer for folks caught behind a firewall and a mean Proxy. Only https passes. This might be useful for some low to medium traffic transfers. I will use it on demand only, it is not really tested and there might (there are for sure) some security issues. I have checked the most obvious. Runs on any system you can execute `df -k` in your Ruby code (that part can be commented out if one needs to do so). Hope this might be helpful in case somebody searches the archives for multipart/form-data File upload WEBrick File Server Cheers Robert