Rails upload file to ftp server

Question

I\'m on Rails 2.3.5 and Ruby 1.8.6 and trying to figure out how to let a user upload a file to a FTP server on a different machine via my Rails app. Also my Rails app will b

Answer 1

After much research and head banging, I ended up reading the source code for putbinaryfile method to figure out a workaround for the limitation of putbinaryfile. Here's the working code, replace this line

ftp.putbinaryfile(file.read, File.basename(file.original_filename))

with

ftp.storbinary("STOR " + file.original_filename, StringIO.new(file.read), Net::FTP::DEFAULT_BLOCKSIZE)

And in case you are wondering, STOR is a raw FTP command, yeah it came to that. I'm rather surprised this scenario isn't more easily handled by Ruby standard libraries, it certainly wasn't obvious what needed to be done.

And if your app is on Heroku, add this line

ftp.passive = true

Heroku's firewall setup does not allow for FTP active mode, also make sure that your FTP server supports passive mode.

Answer 2

Seems to me that ftp.putbinaryfile just wants the path and name of the file as the first parameter.