cookbooks/postgresql/providers/table.rb

   1 #
   2 # Cookbook Name:: postgresql
   3 # Provider:: postgresql_table
   4 #
   5 # Copyright 2013, OpenStreetMap Foundation
   6 #
   7 # Licensed under the Apache License, Version 2.0 (the "License");
   8 # you may not use this file except in compliance with the License.
   9 # You may obtain a copy of the License at
  10 #
  11 #     http://www.apache.org/licenses/LICENSE-2.0
  12 #
  13 # Unless required by applicable law or agreed to in writing, software
  14 # distributed under the License is distributed on an "AS IS" BASIS,
  15 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16 # See the License for the specific language governing permissions and
  17 # limitations under the License.
  18 #
  19
  20 def load_current_resource
  21   @pg = Chef::PostgreSQL.new(new_resource.cluster)
  22   @tables = @pg.tables(new_resource.database)
  23   @name = "#{new_resource.schema}.#{new_resource.name}"
  24
  25   @current_resource = Chef::Resource::PostgresqlTable.new(new_resource.name)
  26   @current_resource.cluster(new_resource.cluster)
  27   @current_resource.database(new_resource.database)
  28   @current_resource.schema(new_resource.schema)
  29   if pg_table = @tables[@name]
  30     @current_resource.owner(pg_table[:owner])
  31     @current_resource.permissions(pg_table[:permissions])
  32   end
  33   @current_resource
  34 end
  35
  36 action :create do
  37   if @tables.include?(@name)
  38     if new_resource.owner != @current_resource.owner
  39       converge_by("set owner for #{new_resource} to #{new_resource.owner}") do
  40         Chef::Log.info("Setting owner for #{new_resource} to #{new_resource.owner}")
  41         @pg.execute(:command => "ALTER TABLE #{@name} OWNER TO \"#{new_resource.owner}\"", :database => new_resource.database)
  42       end
  43     end
  44
  45     @current_resource.permissions.each_key do |user|
  46       next if new_resource.permissions[user]
  47
  48       converge_by("revoke all for #{user} on #{new_resource}") do
  49         Chef::Log.info("Revoking all for #{user} on #{new_resource}")
  50         @pg.execute(:command => "REVOKE ALL ON #{@name} FROM \"#{user}\"", :database => new_resource.database)
  51       end
  52     end
  53
  54     new_resource.permissions.each do |user, new_privileges|
  55       current_privileges = @current_resource.permissions[user] || {}
  56       new_privileges = Array(new_privileges)
  57
  58       if new_privileges.include?(:all)
  59         new_privileges |= Chef::PostgreSQL::TABLE_PRIVILEGES
  60       end
  61
  62       Chef::PostgreSQL::TABLE_PRIVILEGES.each do |privilege|
  63         if new_privileges.include?(privilege)
  64           unless current_privileges.include?(privilege)
  65             converge_by("grant #{privilege} for #{user} on #{new_resource}") do
  66               Chef::Log.info("Granting #{privilege} for #{user} on #{new_resource}")
  67               @pg.execute(:command => "GRANT #{privilege.to_s.upcase} ON #{@name} TO \"#{user}\"", :database => new_resource.database)
  68             end
  69           end
  70         else
  71           if current_privileges.include?(privilege)
  72             converge_by("revoke #{privilege} for #{user} on #{new_resource}") do
  73               Chef::Log.info("Revoking #{privilege} for #{user} on #{new_resource}")
  74               @pg.execute(:command => "REVOKE #{privilege.to_s.upcase} ON #{@name} FROM \"#{user}\"", :database => new_resource.database)
  75             end
  76           end
  77         end
  78       end
  79     end
  80   end
  81 end
  82
  83 action :drop do
  84   if @tables.include?(@name)
  85     converge_by("drop #{new_resource}") do
  86       Chef::Log.info("Dropping #{new_resource}")
  87       @pg.execute(:command => "DROP TABLE #{@name}", :database => new_resource.database)
  88     end
  89   end
  90 end