import ./make-test-python.nix ({ pkgs, lib, ... }: { name = "pg_anonymizer"; meta.maintainers = lib.teams.flyingcircus.members; nodes.machine = { pkgs, ... }: { environment.systemPackages = [ pkgs.pg-dump-anon ]; services.postgresql = { enable = true; extraPlugins = ps: [ ps.anonymizer ]; settings.shared_preload_libraries = "anon"; }; }; testScript = '' start_all() machine.wait_for_unit("multi-user.target") machine.wait_for_unit("postgresql.service") with subtest("Setup"): machine.succeed("sudo -u postgres psql --command 'create database demo'") machine.succeed( "sudo -u postgres psql -d demo -f ${pkgs.writeText "init.sql" '' create extension anon cascade; select anon.init(); create table player(id serial, name text, points int); insert into player(id,name,points) values (1,'Foo', 23); insert into player(id,name,points) values (2,'Bar',42); security label for anon on column player.name is 'MASKED WITH FUNCTION anon.fake_last_name();'; security label for anon on column player.points is 'MASKED WITH VALUE NULL'; ''}" ) def get_player_table_contents(): return [ x.split(',') for x in machine.succeed("sudo -u postgres psql -d demo --csv --command 'select * from player'").splitlines()[1:] ] def check_anonymized_row(row, id, original_name): assert row[0] == id, f"Expected first row to have ID {id}, but got {row[0]}" assert row[1] != original_name, f"Expected first row to have a name other than {original_name}" assert not bool(row[2]), "Expected points to be NULL in first row" def find_xsv_in_dump(dump, sep=','): """ Expecting to find a CSV (for pg_dump_anon) or TSV (for pg_dump) structure, looking like COPY public.player ... 1,Shields, 2,Salazar, \. in the given dump (the commas are tabs in case of pg_dump). Extract the CSV lines and split by `sep`. """ try: from itertools import dropwhile, takewhile return [x.split(sep) for x in list(takewhile( lambda x: x != "\\.", dropwhile( lambda x: not x.startswith("COPY public.player"), dump.splitlines() ) ))[1:]] except: print(f"Dump to process: {dump}") raise def check_original_data(output): assert output[0] == ['1','Foo','23'], f"Expected first row from player table to be 1,Foo,23; got {output[0]}" assert output[1] == ['2','Bar','42'], f"Expected first row from player table to be 2,Bar,42; got {output[1]}" def check_anonymized_rows(output): check_anonymized_row(output[0], '1', 'Foo') check_anonymized_row(output[1], '2', 'Bar') with subtest("Check initial state"): check_original_data(get_player_table_contents()) with subtest("Anonymous dumps"): check_original_data(find_xsv_in_dump( machine.succeed("sudo -u postgres pg_dump demo"), sep='\t' )) check_anonymized_rows(find_xsv_in_dump( machine.succeed("sudo -u postgres pg_dump_anon -U postgres -h /run/postgresql -d demo"), sep=',' )) with subtest("Anonymize"): machine.succeed("sudo -u postgres psql -d demo --command 'select anon.anonymize_database();'") check_anonymized_rows(get_player_table_contents()) ''; })