add auth scopes
[arvados.git] / services / api / app / controllers / application_controller.rb
index c80b578adaa69efe1584caeece5fb225b4608d65..0a89e21021769cb708c4c6977f42737acf369b6a 100644 (file)
@@ -6,9 +6,10 @@ class ApplicationController < ActionController::Base
   around_filter :thread_with_auth_info, :except => [:render_error, :render_not_found]
 
   before_filter :remote_ip
-  before_filter :login_required, :except => :render_not_found
+  before_filter :require_auth_scope_all, :except => :render_not_found
   before_filter :catch_redirect_hint
 
+  before_filter :load_where_param, :only => :index
   before_filter :find_objects_for_index, :only => :index
   before_filter :find_object_by_uuid, :except => [:index, :create]
 
@@ -37,7 +38,8 @@ class ApplicationController < ActionController::Base
   end
 
   def update
-    if @object.update_attributes resource_attrs
+    attrs_to_update = resource_attrs.reject { |k,v| [:kind,:etag].index k }
+    if @object.update_attributes attrs_to_update
       show
     else
       render json: { errors: @object.errors.full_messages }, status: 422
@@ -57,7 +59,7 @@ class ApplicationController < ActionController::Base
     end
   end
 
-  unless Rails.application.config.consider_all_requests_local
+  begin
     rescue_from Exception,
     :with => :render_error
     rescue_from ActiveRecord::RecordNotFound,
@@ -68,12 +70,14 @@ class ApplicationController < ActionController::Base
     :with => :render_not_found
     rescue_from ActionController::UnknownAction,
     :with => :render_not_found
+    rescue_from ArvadosModel::PermissionDeniedError,
+    :with => :render_error
   end
 
   def render_error(e)
     logger.error e.inspect
     logger.error e.backtrace.collect { |x| x + "\n" }.join('') if e.backtrace
-    if @object and @object.errors and @object.errors.full_messages
+    if @object and @object.errors and @object.errors.full_messages and not @object.errors.full_messages.empty?
       errors = @object.errors.full_messages
     else
       errors = [e.inspect]
@@ -88,25 +92,50 @@ class ApplicationController < ActionController::Base
 
   protected
 
+  def load_where_param
+    if params[:where].nil? or params[:where] == ""
+      @where = {}
+    elsif params[:where].is_a? Hash
+      @where = params[:where]
+    elsif params[:where].is_a? String
+      begin
+        @where = Oj.load(params[:where])
+      rescue
+        raise ArgumentError.new("Could not parse \"where\" param as an object")
+      end
+    end
+  end
+
   def find_objects_for_index
     uuid_list = [current_user.uuid, *current_user.groups_i_can(:read)]
     sanitized_uuid_list = uuid_list.
       collect { |uuid| model_class.sanitize(uuid) }.join(', ')
+    or_references_me = ''
+    if model_class == Link and current_user
+      or_references_me = "OR (#{table_name}.link_class in (#{model_class.sanitize 'permission'}, #{model_class.sanitize 'resources'}) AND #{model_class.sanitize current_user.uuid} IN (#{table_name}.head_uuid, #{table_name}.tail_uuid))"
+    end
     @objects ||= model_class.
-      joins("LEFT JOIN links permissions ON permissions.head_uuid=#{table_name}.owner AND permissions.tail_uuid in (#{sanitized_uuid_list}) AND permissions.link_class='permission'").
-      where("?=? OR #{table_name}.owner in (?) OR #{table_name}.uuid=? OR permissions.head_uuid IS NOT NULL",
+      joins("LEFT JOIN links permissions ON permissions.head_uuid in (#{table_name}.owner_uuid, #{table_name}.uuid) AND permissions.tail_uuid in (#{sanitized_uuid_list}) AND permissions.link_class='permission'").
+      where("?=? OR #{table_name}.owner_uuid in (?) OR #{table_name}.uuid=? OR permissions.head_uuid IS NOT NULL #{or_references_me}",
             true, current_user.is_admin,
             uuid_list,
             current_user.uuid)
-    @where = params[:where] || {}
-    @where = Oj.load(@where) if @where.is_a?(String)
-    if params[:where]
+    if !@where.empty?
       conditions = ['1=1']
       @where.each do |attr,value|
-        if (!value.nil? and
-            attr.to_s.match(/^[a-z][_a-z0-9]+$/) and
-            model_class.columns.collect(&:name).index(attr))
-          if value.is_a? Array
+        if attr == 'any' or attr == :any
+          if value.is_a?(Array) and
+              value[0] == 'contains' and
+              model_class.columns.collect(&:name).index('name') then
+            conditions[0] << " and #{table_name}.name ilike ?"
+            conditions << "%#{value[1]}%"
+          end
+        elsif attr.to_s.match(/^[a-z][_a-z0-9]+$/) and
+            model_class.columns.collect(&:name).index(attr.to_s)
+          if value.nil?
+            conditions[0] << " and #{table_name}.#{attr} is ?"
+            conditions << nil
+          elsif value.is_a? Array
             conditions[0] << " and #{table_name}.#{attr} in (?)"
             conditions << value
           elsif value.is_a? String or value.is_a? Fixnum or value == true or value == false
@@ -121,11 +150,6 @@ class ApplicationController < ActionController::Base
               end
             end
           end
-        elsif (!value.nil? and attr == 'any' and
-          value.is_a?(Array) and value[0] == 'contains' and
-          model_class.columns.collect(&:name).index('name')) then
-            conditions[0] << " and #{table_name}.name ilike ?"
-            conditions << "%#{value[1]}%"
         end
       end
       if conditions.length > 1
@@ -138,12 +162,27 @@ class ApplicationController < ActionController::Base
       begin
         @objects = @objects.limit(params[:limit].to_i)
       rescue
-        raise "invalid argument (limit)"
+        raise ArgumentError.new("Invalid value for limit parameter")
       end
     else
       @objects = @objects.limit(100)
     end
-    @objects = @objects.order("#{table_name}.modified_at desc")
+    orders = []
+    if params[:order]
+      params[:order].split(',').each do |order|
+        attr, direction = order.strip.split " "
+        direction ||= 'asc'
+        if attr.match /^[a-z][_a-z0-9]+$/ and
+            model_class.columns.collect(&:name).index(attr) and
+            ['asc','desc'].index direction.downcase
+          orders << "#{table_name}.#{attr} #{direction.downcase}"
+        end
+      end
+    end
+    if orders.empty?
+      orders << "#{table_name}.modified_at desc"
+    end
+    @objects = @objects.order(orders.join ", ")
   end
 
   def resource_attrs
@@ -153,25 +192,49 @@ class ApplicationController < ActionController::Base
       @attrs = uncamelcase_hash_keys(Oj.load @attrs)
     end
     unless @attrs.is_a? Hash
-      raise "no #{resource_name} (or #{resource_name.camelcase(:lower)}) hash provided with request #{params.inspect}"
+      message = "No #{resource_name}"
+      if resource_name.index('_')
+        message << " (or #{resource_name.camelcase(:lower)})"
+      end
+      message << " hash provided with request"
+      raise ArgumentError.new(message)
     end
-    %w(created_at modified_by_client modified_by_user modified_at).each do |x|
+    %w(created_at modified_by_client_uuid modified_by_user_uuid modified_at).each do |x|
       @attrs.delete x
     end
     @attrs
   end
 
   # Authentication
-  def login_required
-    if !current_user
+  def require_login
+    if current_user
+      true
+    else
       respond_to do |format|
+        format.json {
+          render :json => { errors: ['Not logged in'] }.to_json, status: 401
+        }
         format.html  {
           redirect_to '/auth/joshid'
         }
-        format.json {
-          render :json => { errors: ['Not logged in'] }.to_json
-        }
       end
+      false
+    end
+  end
+
+  def admin_required
+    unless current_user and current_user.is_admin
+      render :json => { errors: ['Forbidden'] }.to_json, status: 403
+    end
+  end
+
+  def require_auth_scope_all
+    require_login and require_auth_scope(['all'])
+  end
+
+  def require_auth_scope(ok_scopes)
+    unless current_api_client_auth_has_scope(ok_scopes)
+      render :json => { errors: ['Forbidden'] }.to_json, status: 403
     end
   end
 
@@ -187,11 +250,11 @@ class ApplicationController < ActionController::Base
       if supplied_token
         api_client_auth = ApiClientAuthorization.
           includes(:api_client, :user).
-          where('api_token=?', supplied_token).
+          where('api_token=? and (expires_at is null or expires_at > now())', supplied_token).
           first
         if api_client_auth
           session[:user_id] = api_client_auth.user.id
-          session[:api_client_uuid] = api_client_auth.api_client.uuid
+          session[:api_client_uuid] = api_client_auth.api_client.andand.uuid
           session[:api_client_authorization_id] = api_client_auth.id
           user = api_client_auth.user
           api_client = api_client_auth.api_client
@@ -206,15 +269,18 @@ class ApplicationController < ActionController::Base
             find session[:api_client_authorization_id]
         end
       end
-      Thread.current[:api_client_trusted] = session[:api_client_trusted]
       Thread.current[:api_client_ip_address] = remote_ip
       Thread.current[:api_client_authorization] = api_client_auth
-      Thread.current[:api_client_uuid] = api_client && api_client.uuid
+      Thread.current[:api_client_uuid] = api_client.andand.uuid
       Thread.current[:api_client] = api_client
       Thread.current[:user] = user
+      if api_client_auth
+        api_client_auth.last_used_at = Time.now
+        api_client_auth.last_used_by_ip_address = remote_ip
+        api_client_auth.save validate: false
+      end
       yield
     ensure
-      Thread.current[:api_client_trusted] = nil
       Thread.current[:api_client_ip_address] = nil
       Thread.current[:api_client_authorization] = nil
       Thread.current[:api_client_uuid] = nil
@@ -300,4 +366,11 @@ class ApplicationController < ActionController::Base
       @remote_ip = request.env['REMOTE_ADDR']
     end
   end
+
+  def self._index_requires_parameters
+    {
+      where: { type: 'object', required: false },
+      order: { type: 'string', required: false }
+    }
+  end
 end