Using HTTPI with Curb to do multipart file uploads with spnego

Wed, 25 Jul 2012 22:25:11 +0000

It took a while to find a library that handled spnego requests, as opposed to shelling out to a curl --negotiate. Found httpi to work well with the curb adapter.
The problem was that the documentation didn't really explain how to do file uploads withing the httpi request block.
Wasn't too much of a big deal, but I thought it may save someone else some time.

	require 'rubygems'
	require 'httpi'
	require 'curb'

	# at some point before the request is made you'll need a kerberos ticket
	# i.e., kinit -k -t ticket_path

	image_path = "/tmp/some_image.jpg"

	url = URI.escape("https://some_ssl_spnego_url.com/upload_file_here")

	HTTPI.adapter = :curb
	req = HTTPI::Request.new
	req.url = url

	# add the file to the body as a PostField
	req.body = Curl::PostField.file("image", image_path){IO.read(image_path)}

	# use spnego when in prod and devserver
	req.auth.gssnegotiate

	resp = HTTPI.post req do \|http\|
	http.use_ssl
	http.multipart_form_post = true
	end
	if resp.code == 200
	puts "Successfully uploaded image."
	else
	puts "Error .... :("
	end

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VIN API – VIN Decoder for anyone

Fri, 19 Feb 2010 17:45:11 +0000

UPDATES:
See Phase II details for complete dataset information.
Take a look at the PHP examples and the .NET examples.
And ... while it's been great being able to give this information away freely for about a year now, we have to share some of the cost with our users, so please read about our pricing model.
END UPDATES

VIN API came about through lots of work on a current project of ours - Mr. Quotey. We are dealing with auto insurance and wanted a way to decode VINs. The other solutions we found (API-wise) were too expensive for our small, unfunded startup. So like the way most great things come about, we decided to build our own VIN decoding API.

Using VIN API:

This is explained in detail at VIN API's site, but I will give you a look at what it does here.

If you use Ruby on Rails like I do, then you have the option to use ActiveResource:

	class VinApi < ActiveResource::Base
	headers["X-VinApiKey"] = "YOUR_API_KEY_GOES_HERE"
	self.site = "http://vinapi.skizmo.com"
	self.element_name = "vin"
	end

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Then you can use it like this:

Current Limitations:

Right now each account is limited to 20 VIN requests a month, we are looking to take it slow and prevent abuse. If you do need more VIN decodings a month, feel free to let us know at Mr. Quotey, we'd be happy to up the max for your account.

Where to next?:

It is too soon to really tell. We'd like your feedback and to know if this service is useful. If it gets enough buzz, we would probably pursue it a bit more and drop the monthly limitations.

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curl – PullMonkey Blog

Using HTTPI with Curb to do multipart file uploads with spnego

VIN API – VIN Decoder for anyone

Using VIN API:

Current Limitations:

Where to next?: