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[chef.git] / 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