+ rescue Timeout::Error
+ raise OSM::APITimeoutError
+ end
+
+ ##
+ # wrap a web page in a timeout
+ def web_timeout
+ OSM::Timer.timeout(WEB_TIMEOUT) do
+ yield
+ end
+ rescue ActionView::Template::Error => ex
+ ex = ex.original_exception
+
+ if ex.is_a?(ActiveRecord::StatementInvalid) and ex.message =~ /execution expired/
+ ex = Timeout::Error.new
+ end
+
+ if ex.is_a?(Timeout::Error)
+ render :action => "timeout"
+ else
+ raise
+ end
+ rescue Timeout::Error
+ render :action => "timeout"
+ end
+
+ ##
+ # is the requestor logged in?
+ def logged_in?
+ !@user.nil?
+ end
+
+ ##
+ # ensure that there is a "this_user" instance variable
+ def lookup_this_user
+ unless @this_user = User.active.find_by_display_name(params[:display_name])
+ render_unknown_user params[:display_name]
+ end
+ end
+
+ ##
+ # render a "no such user" page
+ def render_unknown_user(name)
+ @title = t "user.no_such_user.title"
+ @not_found_user = name
+
+ respond_to do |format|
+ format.html { render :template => "user/no_such_user", :status => :not_found }
+ format.all { render :text => "", :status => :not_found }
+ end
+ end
+
+ ##
+ # Unfortunately if a PUT or POST request that has a body fails to
+ # read it then Apache will sometimes fail to return the response it
+ # is given to the client properly, instead erroring:
+ #
+ # https://issues.apache.org/bugzilla/show_bug.cgi?id=44782
+ #
+ # To work round this we call rewind on the body here, which is added
+ # as a filter, to force it to be fetched from Apache into a file.
+ def fetch_body
+ request.body.rewind
+ end
+
+ def map_layout
+ request.xhr? ? 'xhr' : 'map'
+ end
+
+ def preferred_editor
+ editor = if params[:editor]
+ params[:editor]
+ elsif @user and @user.preferred_editor
+ @user.preferred_editor
+ else
+ DEFAULT_EDITOR
+ end
+
+ if request.env['HTTP_USER_AGENT'] =~ /MSIE|Trident/ and editor == 'id'
+ editor = 'potlatch2'
+ end
+
+ editor