A streaming multipart HTTP upload implementation. Used to upload cookbooks (in tarball form) to cookbooks.opscode.com
inspired by stanislavvitvitskiy.blogspot.com/2008/12/multipart-post-in-ruby.html
# File lib/chef/cookbook_site_streaming_uploader.rb, line 37 def create_build_dir(cookbook) tmp_cookbook_path = Tempfile.new("chef-#{cookbook.name}-build") tmp_cookbook_path.close tmp_cookbook_dir = tmp_cookbook_path.path File.unlink(tmp_cookbook_dir) FileUtils.mkdir_p(tmp_cookbook_dir) Chef::Log.debug("Staging at #{tmp_cookbook_dir}") checksums_to_on_disk_paths = cookbook.checksums Chef::CookbookVersion::COOKBOOK_SEGMENTS.each do |segment| cookbook.manifest[segment].each do |manifest_record| path_in_cookbook = manifest_record[:path] on_disk_path = checksums_to_on_disk_paths[manifest_record[:checksum]] dest = File.join(tmp_cookbook_dir, cookbook.name.to_s, path_in_cookbook) FileUtils.mkdir_p(File.dirname(dest)) Chef::Log.debug("Staging #{on_disk_path} to #{dest}") FileUtils.cp(on_disk_path, dest) end end # First, generate metadata Chef::Log.debug("Generating metadata") kcm = Chef::Knife::CookbookMetadata.new kcm.config[:cookbook_path] = [ tmp_cookbook_dir ] kcm.name_args = [ cookbook.name.to_s ] kcm.run tmp_cookbook_dir end
# File lib/chef/cookbook_site_streaming_uploader.rb, line 74 def make_request(http_verb, to_url, user_id, secret_key_filename, params = {}, headers = {}) boundary = '----RubyMultipartClient' + rand(1000000).to_s + 'ZZZZZ' parts = [] content_file = nil timestamp = Time.now.utc.iso8601 secret_key = OpenSSL::PKey::RSA.new(File.read(secret_key_filename)) unless params.nil? || params.empty? params.each do |key, value| if value.kind_of?(File) content_file = value filepath = value.path filename = File.basename(filepath) parts << StringPart.new( "--" + boundary + "\r\n" + "Content-Disposition: form-data; name=\"" + key.to_s + "\"; filename=\"" + filename + "\"\r\n" + "Content-Type: application/octet-stream\r\n\r\n") parts << StreamPart.new(value, File.size(filepath)) parts << StringPart.new("\r\n") else parts << StringPart.new( "--" + boundary + "\r\n" + "Content-Disposition: form-data; name=\"" + key.to_s + "\"\r\n\r\n") parts << StringPart.new(value.to_s + "\r\n") end end parts << StringPart.new("--" + boundary + "--\r\n") end body_stream = MultipartStream.new(parts) timestamp = Time.now.utc.iso8601 url = URI.parse(to_url) Chef::Log.logger.debug("Signing: method: #{http_verb}, path: #{url.path}, file: #{content_file}, User-id: #{user_id}, Timestamp: #{timestamp}") # We use the body for signing the request if the file parameter # wasn't a valid file or wasn't included. Extract the body (with # multi-part delimiters intact) to sign the request. # TODO: tim: 2009-12-28: It'd be nice to remove this special case, and # always hash the entire request body. In the file case it would just be # expanded multipart text - the entire body of the POST. content_body = parts.inject("") { |result,part| result + part.read(0, part.size) } content_file.rewind if content_file # we consumed the file for the above operation, so rewind it. signing_options = { :http_method=>http_verb, :path=>url.path, :user_id=>user_id, :timestamp=>timestamp} (content_file && signing_options[:file] = content_file) || (signing_options[:body] = (content_body || "")) headers.merge!(Mixlib::Authentication::SignedHeaderAuth.signing_object(signing_options).sign(secret_key)) content_file.rewind if content_file # net/http doesn't like symbols for header keys, so we'll to_s each one just in case headers = DefaultHeaders.merge(Hash[*headers.map{ |k,v| [k.to_s, v] }.flatten]) req = case http_verb when :put Net::HTTP::Put.new(url.path, headers) when :post Net::HTTP::Post.new(url.path, headers) end req.content_length = body_stream.size req.content_type = 'multipart/form-data; boundary=' + boundary unless parts.empty? req.body_stream = body_stream http = Net::HTTP.new(url.host, url.port) if url.scheme == "https" http.use_ssl = true http.verify_mode = OpenSSL::SSL::VERIFY_NONE end res = http.request(req) #res = http.start {|http_proc| http_proc.request(req) } # alias status to code and to_s to body for test purposes # TODO: stop the following madness! class << res alias :to_s :body # BUGBUG this makes the response compatible with what respsonse_steps expects to test headers (response.headers[] -> response[]) def headers self end def status code.to_i end end res end
# File lib/chef/cookbook_site_streaming_uploader.rb, line 66 def post(to_url, user_id, secret_key_filename, params = {}, headers = {}) make_request(:post, to_url, user_id, secret_key_filename, params, headers) end
# File lib/chef/cookbook_site_streaming_uploader.rb, line 70 def put(to_url, user_id, secret_key_filename, params = {}, headers = {}) make_request(:put, to_url, user_id, secret_key_filename, params, headers) end
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