sketchup_file_post.rb

model_file = File.join(ENV['HOME'], 'Desktop', 'test.skp')
filename = File.basename(model_file)


# Build the POST body content:

BOUNDARY = "----RubyMultipartClient#{rand(1000000)}ZZZZZ"

data = []
data << "Content-Type: multipart/form-data; boundary=#{BOUNDARY}\r\n\r\n"
data << "--#{BOUNDARY}\r\n"
data << "Content-Disposition: form-data; name=\"file\"; filename=\"#{filename}\"\r\n\r\n"

File.open(model_file, "rb:BINARY") { |file|
  contents = file.read
  data << contents
}
data << "\r\n\r\n--#{BOUNDARY}--\r\n"

# When we join the data array Ruby will choke if we have unicode strings
# along with the binary data. This happens when we have filenames with
# unicode characters. Because of this we force Ruby to treat all the strings
# as binary. Ruby alias BINARY as ASCII-8BIT which is a bit confusing. But
# encodings in Ruby isn't a pretty beast.
data.each { |line|
  line.force_encoding(Encoding::BINARY)
}
payload = data.join


# Set the headers:

headers = {}
headers['Content-Type'] = "multipart/form-data; boundary=#{BOUNDARY}"
headers

url = 'http://posttestserver.com/post.php'


# Make the request:

request = Sketchup::Http::Request.new(url, Sketchup::Http::POST)
request.headers = headers
request.body = payload

request.start do |req, res|
  # Not entering
  p res
  p res.status_code
  puts res.body
end