Add user block api call

app/controllers/api/user_blocks_controller.rb

@@ -1,5 +1,8 @@
 module Api
   class UserBlocksController < ApiController
+    before_action :check_api_writable, :only => :create
+    before_action :authorize, :only => :create
+
     authorize_resource
 
     before_action :set_request_formats
@@ -11,5 +14,33 @@ module Api
     rescue ActiveRecord::RecordNotFound
       raise OSM::APINotFoundError
     end
+
+    def create
+      raise OSM::APIBadUserInput, "No user was given" unless params[:user]
+
+      user = User.visible.find_by(:id => params[:user])
+      raise OSM::APINotFoundError unless user
+      raise OSM::APIBadUserInput, "No reason was given" unless params[:reason]
+      raise OSM::APIBadUserInput, "No period was given" unless params[:period]
+
+      period = Integer(params[:period], :exception => false)
+      raise OSM::APIBadUserInput, "Period should be a number of hours" unless period
+
+      max_period = UserBlock::PERIODS.max
+      raise OSM::APIBadUserInput, "Period must be between 0 and #{max_period}" if period.negative? || period > max_period
+      raise OSM::APIBadUserInput, "Needs_view must be true if provided" unless params[:needs_view].nil? || params[:needs_view] == "true"
+
+      ends_at = Time.now.utc + period.hours
+      needs_view = params[:needs_view] == "true"
+      @user_block = UserBlock.create(
+        :user => user,
+        :creator => current_user,
+        :reason => params[:reason],
+        :ends_at => ends_at,
+        :deactivates_at => (ends_at unless needs_view),
+        :needs_view => needs_view
+      )
+      render :show
+    end
   end
 end