Redmine/Rails - Undefined method while sending POST data

Question

Redmine allows the user to add files to a document manually, my goal is to create a method that does that automatically.

I've added a file manually while sniffing with Wireshark to get the POST requests that I want to recreate in my method to help me a little bit (I can't post some screenshots (if needed), my reputation is too low).

Redmine official website offers informations to how attach files here: http://www.redmine.org/projects/redmine/wiki/Rest_api#Attaching-files

So after hours browsing the Web and particulary StackOverflow and here, I finally wrote a method:

require 'net/http'
require 'uri'

uri = URI.parse("/uploads.js")
http = Net::HTTP.new(uri.host, uri.port)
request = Net::HTTP::Post.new(uri.path, initheader = {'Content-Type' => 'application/octet-stream'})
request.body = File.new("/home/testFile.txt", 'rb')
@response = http.request(request)

As explained on the Redmine website I specified the content-type in the header and I added the file in the body request.

Now I get the following error:

NoMethodError (undefined method `+' for nil:NilClass):
/usr/local/lib/ruby/1.9.1/net/http.rb:1404:in `addr_port'
/usr/local/lib/ruby/1.9.1/net/http.rb:1339:in `begin_transport'
/usr/local/lib/ruby/1.9.1/net/http.rb:1315:in `transport_request'
/usr/local/lib/ruby/1.9.1/net/http.rb:1293:in `request'
rest-client (1.6.7) lib/restclient/net_http_ext.rb:51:in `request'
/usr/local/lib/ruby/1.9.1/net/http.rb:1286:in `block in request'
/usr/local/lib/ruby/1.9.1/net/http.rb:745:in `start'
/usr/local/lib/ruby/1.9.1/net/http.rb:1284:in `request'
rest-client (1.6.7) lib/restclient/net_http_ext.rb:51:in `request'
plugins/redmine_reddrop/app/controllers/projectusers_controller.rb:360:in `addFile'

EDIT:

I updated my uri with an absolute URL like this:

uri = URI.parse("http://<server_IP_address>:3000/uploads.js")

And now I'm getting the following error:

NoMethodError (undefined method `bytesize' for #<File:/home/testFile.txt>):

Do you see any error in my method or do you have any idea where does this error come from?

Note: I'm using rails 3.2.16 and Ruby 1.9.3-p392

Your URI is just a filename. When creating the Net::HTTP object, you are calling its port. This might be nil, so the HTTP class clould be unable to build the request properly when the supplied port is nil. — KappaNossi
– KappaNossi, Commented Mar 24, 2014 at 14:15
Please print uri.host and uri.port before assigning http and post their content if those are not nil. — Patru
– Patru, Commented Mar 24, 2014 at 14:20
Both are nil. Should I defined these variables by myself so ? I assume the port is 80 and the host would be redmine.org? — Shredator
– Shredator, Commented Mar 24, 2014 at 14:34

Uelb · Accepted Answer · 2014-03-24 16:00:14Z

1

As far as I know, you cannot use a relative URI so your line

uri = URI.parse('/uploads.js')

cannot be correctly processed. Try using the absolute URL ! And it will probably work.

I believe that instead of

request.body = File.new(...)

You should use

request.body = File.read(...)

edited Mar 24, 2014 at 16:00

answered Mar 24, 2014 at 14:48

Uelb

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6 Comments

Shredator Over a year ago

I updated my uri like this: uri = URI.parse("http://<server_IP_address>:3000/uploads.js") because I'm working on a distant server where I've installed Redmine and I'm now getting another error:(undefined method bytesize' for #<File:/home/testFile.txt>`. Another problem is if someone install my plugin on his Redmine platform the code must be modified that's why I put a relative address.

Uelb Over a year ago

You can also find the current url in another way I guess. If you are in a controller, you can for instance use request.original_url And I updated my answer

Shredator Over a year ago

Ok I didn't know that, thanks. I'll update my post with the new informations and with the new error message.

Patru Over a year ago

Are you sure there is a file at /home/testFile.txt? This error message looks like it would not be there.

Shredator Over a year ago

Finally I solved the problem, thanks to you, that gave me hints to continue. The request doesn't work tough, I face another problem (CSRF Token stuff) but I'm gonna do a new post for that. Thanks alot.

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