1 class ApplicationController < ActionController::Base
3 around_filter :thread_clear
4 around_filter :thread_with_api_token, :except => [:render_exception, :render_not_found]
5 before_filter :find_object_by_uuid, :except => [:index, :render_exception, :render_not_found]
9 :with => :render_exception
10 rescue_from ActiveRecord::RecordNotFound,
11 :with => :render_not_found
12 rescue_from ActionController::RoutingError,
13 :with => :render_not_found
14 rescue_from ActionController::UnknownController,
15 :with => :render_not_found
16 rescue_from ::AbstractController::ActionNotFound,
17 :with => :render_not_found
20 def unprocessable(message=nil)
22 @errors << message if message
23 render_error status: 422
26 def render_error(opts)
28 f.html { render opts.merge(controller: 'application', action: 'error') }
29 f.json { render opts.merge(json: {success: false, errors: @errors}) }
33 def render_exception(e)
34 logger.error e.inspect
35 logger.error e.backtrace.collect { |x| x + "\n" }.join('') if e.backtrace
36 if @object.andand.errors.andand.full_messages.andand.any?
37 @errors = @object.errors.full_messages
41 self.render_error status: 422
44 def render_not_found(e=ActionController::RoutingError.new("Path not found"))
45 logger.error e.inspect
46 @errors = ["Path not found"]
47 self.render_error status: 404
52 @objects ||= model_class.all
54 f.json { render json: @objects }
61 return render_not_found("object not found")
64 f.json { render json: @object }
66 if request.method == 'GET'
69 redirect_to params[:return_to] || @object
77 return render_not_found("object not found")
82 @object = model_class.new
86 updates = params[@object.class.to_s.underscore.singularize.to_sym]
87 updates.keys.each do |attr|
88 if @object.send(attr).is_a? Hash and updates[attr].is_a? String
89 updates[attr] = Oj.load updates[attr]
92 if @object.update_attributes updates
95 self.render_error status: 422
100 @object ||= model_class.new params[model_class.to_s.singularize.to_sym]
102 redirect_to(params[:return_to] || @object)
107 redirect_to(params[:return_to] || :back)
109 self.render_error status: 422
114 if Thread.current[:arvados_api_token]
115 Thread.current[:user] ||= User.current
117 logger.error "No API token in Thread"
123 controller_name.classify.constantize
128 def find_object_by_uuid
129 if params[:id] and params[:id].match /\D/
130 params[:uuid] = params.delete :id
132 if params[:uuid].is_a? String
133 @object = model_class.find(params[:uuid])
135 @object = model_class.where(uuid: params[:uuid]).first
140 Thread.current[:arvados_api_token] = nil
141 Thread.current[:user] = nil
145 def thread_with_api_token
147 try_redirect_to_login = true
148 if params[:api_token]
149 try_redirect_to_login = false
150 Thread.current[:arvados_api_token] = params[:api_token]
151 # Before copying the token into session[], do a simple API
152 # call to verify its authenticity.
154 session[:arvados_api_token] = params[:api_token]
155 if !request.format.json? and request.method == 'GET'
156 # Repeat this request with api_token in the (new) session
157 # cookie instead of the query string. This prevents API
158 # tokens from appearing in (and being inadvisedly copied
159 # and pasted from) browser Location bars.
160 redirect_to request.fullpath.sub(%r{([&\?]api_token=)[^&\?]*}, '')
165 @errors = ['Invalid API token']
166 self.render_error status: 401
168 elsif session[:arvados_api_token]
169 # In this case, the token must have already verified at some
170 # point, but it might have been revoked since. We'll try
171 # using it, and catch the exception if it doesn't work.
172 try_redirect_to_login = false
173 Thread.current[:arvados_api_token] = session[:arvados_api_token]
176 rescue ArvadosApiClient::NotLoggedInException
177 try_redirect_to_login = true
180 logger.debug "No token received, session is #{session.inspect}"
182 if try_redirect_to_login
185 if request.method == 'GET'
186 redirect_to $arvados_api_client.arvados_login_url(return_to: request.url)
188 flash[:error] = "Either you are not logged in, or your session has timed out. I can't automatically log you in and re-attempt this request."
193 @errors = ['You do not seem to be logged in. You did not supply an API token with this request, and your session (if any) has timed out.']
194 self.render_error status: 422
199 # Remove token in case this Thread is used for anything else.
200 Thread.current[:arvados_api_token] = nil
206 Link.where(uuid: 'just-verifying-my-api-token')
208 rescue ArvadosApiClient::NotLoggedInException
213 def ensure_current_user_is_admin
214 unless current_user and current_user.is_admin
215 @errors = ['Permission denied']
216 self.render_error status: 401