end
def show_file_links
- if Rails.configuration.keep_web_url || Rails.configuration.keep_web_download_url
- # show_file will redirect to keep-web's directory listing
- return show_file
- end
- Thread.current[:reader_tokens] = [params[:reader_token]]
- return if false.equal?(find_object_by_uuid)
- render layout: false
+ return show_file
end
def show_file
- # We pipe from arv-get to send the file to the user. Before we start it,
- # we ask the API server if the file actually exists. This serves two
- # purposes: it lets us return a useful status code for common errors, and
- # helps us figure out which token to provide to arv-get.
# The order of searched tokens is important: because the anonymous user
# token is passed along with every API request, we have to check it first.
# Otherwise, it's impossible to know whether any other request succeeded
return
end
- # If we are configured to use a keep-web server, just redirect to
- # the appropriate URL.
- if Rails.configuration.keep_web_url or
- Rails.configuration.keep_web_download_url
- opts = {}
- if usable_token == params[:reader_token]
- opts[:path_token] = usable_token
- elsif usable_token == Rails.configuration.anonymous_user_token
- # Don't pass a token at all
- else
- # We pass the current user's real token only if it's necessary
- # to read the collection.
- opts[:query_token] = usable_token
- end
- opts[:disposition] = params[:disposition] if params[:disposition]
- return redirect_to keep_web_url(params[:uuid], params[:file], opts)
- end
-
- # No keep-web server available. Get the file data with arv-get,
- # and serve it through Rails.
-
- file_name = params[:file].andand.sub(/^(\.\/|\/|)/, './')
- if file_name.nil? or not coll.manifest.has_file?(file_name)
- return render_not_found
- end
-
- opts = params.merge(arvados_api_token: usable_token)
-
- # Handle Range requests. Currently we support only 'bytes=0-....'
- if request.headers.include? 'HTTP_RANGE'
- if m = /^bytes=0-(\d+)/.match(request.headers['HTTP_RANGE'])
- opts[:maxbytes] = m[1]
- size = params[:size] || '*'
- self.response.status = 206
- self.response.headers['Content-Range'] = "bytes 0-#{m[1]}/#{size}"
- end
- end
-
- ext = File.extname(params[:file])
- self.response.headers['Content-Type'] =
- Rack::Mime::MIME_TYPES[ext] || 'application/octet-stream'
- if params[:size]
- size = params[:size].to_i
- if opts[:maxbytes]
- size = [size, opts[:maxbytes].to_i].min
- end
- self.response.headers['Content-Length'] = size.to_s
- end
- self.response.headers['Content-Disposition'] = params[:disposition] if params[:disposition]
- begin
- file_enumerator(opts).each do |bytes|
- response.stream.write bytes
- end
- ensure
- response.stream.close
+ opts = {}
+ if usable_token == params[:reader_token]
+ opts[:path_token] = usable_token
+ elsif usable_token == Rails.configuration.anonymous_user_token
+ # Don't pass a token at all
+ else
+ # We pass the current user's real token only if it's necessary
+ # to read the collection.
+ opts[:query_token] = usable_token
end
+ opts[:disposition] = params[:disposition] if params[:disposition]
+ return redirect_to keep_web_url(params[:uuid], params[:file], opts)
end
def sharing_scopes
def download_link
token = @search_sharing.first.api_token
- if Rails.configuration.keep_web_url || Rails.configuration.keep_web_download_url
- keep_web_url(@object.uuid, nil, {path_token: token})
- else
- collections_url + "/download/#{@object.uuid}/#{token}/"
- end
+ keep_web_url(@object.uuid, nil, {path_token: token})
end
def share
uri.to_s
end
-
- # Note: several controller and integration tests rely on stubbing
- # file_enumerator to return fake file content.
- def file_enumerator opts
- FileStreamer.new opts
- end
-
- class FileStreamer
- include ArvadosApiClientHelper
- def initialize(opts={})
- @opts = opts
- end
- def each
- return unless @opts[:uuid] && @opts[:file]
-
- env = Hash[ENV].dup
-
- require 'uri'
- u = URI.parse(arvados_api_client.arvados_v1_base)
- env['ARVADOS_API_HOST'] = "#{u.host}:#{u.port}"
- env['ARVADOS_API_TOKEN'] = @opts[:arvados_api_token]
- env['ARVADOS_API_HOST_INSECURE'] = "true" if Rails.configuration.arvados_insecure_https
-
- bytesleft = @opts[:maxbytes].andand.to_i || 2**16
- io = IO.popen([env, 'arv-get', "#{@opts[:uuid]}/#{@opts[:file]}"], 'rb')
- while bytesleft > 0 && (buf = io.read([bytesleft, 2**16].min)) != nil
- # shrink the bytesleft count, if we were given a maximum byte
- # count to read
- if @opts.include? :maxbytes
- bytesleft = bytesleft - buf.length
- end
- yield buf
- end
- io.close
- # "If ios is opened by IO.popen, close sets $?."
- # http://www.ruby-doc.org/core-2.1.3/IO.html#method-i-close
- Rails.logger.warn("#{@opts[:uuid]}/#{@opts[:file]}: #{$?}") if $? != 0
- end
- end
end
projects / arvados.git / blobdiff