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annotate auth.sql @ 103:b29538ac409d

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Fix authorisation of templates for waterway_user. SELECT privilege for relation-table is needed to rely on it in RLS policy. Removed unnecessary JOINs that lead to infinite recursion.
author Tom Gottfried <tom@intevation.de>
date Fri, 15 Jun 2018 18:12:40 +0200
parents 81a2b26bf16b
children b5e403843639
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1 BEGIN;
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2
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3 --
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4 -- Roles, privileges and policies for the WAMOS database
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5 --
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6 SET search_path TO public, wamos, wamos_waterway, wamos_fairway;
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7
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8 -- We do not want any users to be able to create any objects
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9 REVOKE CREATE ON SCHEMA public FROM PUBLIC;
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10
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11 --
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12 -- Primary WAMOS roles (SRS table 3)
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13 --
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14 CREATE ROLE waterway_user;
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15 CREATE ROLE waterway_admin IN ROLE waterway_user;
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16 CREATE ROLE sys_admin CREATEROLE BYPASSRLS IN ROLE waterway_admin;
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17
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18 --
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19 -- Privileges for waterway_user
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20 --
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21 GRANT USAGE ON SCHEMA wamos, wamos_waterway, wamos_fairway TO waterway_user;
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22 GRANT SELECT ON ALL TABLES IN SCHEMA wamos_waterway, wamos_fairway
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23 TO waterway_user;
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24 GRANT SELECT ON templates, user_templates, user_profiles TO waterway_user;
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25
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26 --
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27 -- Extended privileges for waterway_admin
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28 --
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29 GRANT INSERT, UPDATE ON ALL TABLES IN SCHEMA wamos_waterway, wamos_fairway
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30 TO waterway_admin;
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31 -- TODO: will there ever be UPDATEs or can we drop that due to historicisation?
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32 GRANT INSERT, UPDATE ON templates, user_templates TO waterway_admin;
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33
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34 --
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35 -- Extended privileges for sys_admin
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36 --
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37 GRANT SELECT, INSERT, UPDATE, DELETE ON ALL TABLES IN SCHEMA wamos
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38 TO sys_admin;
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39
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40 --
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41 -- RLS policies for waterway_user
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42 --
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43
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44 -- Staging area
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45 CREATE FUNCTION create_hide_staging_policy() RETURNS void AS $$
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46 DECLARE the_table varchar;
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47 BEGIN
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48 FOREACH the_table IN ARRAY ARRAY[
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49 'bottlenecks', 'sounding_results']
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50 -- TODO: add all relevant tables here
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51 LOOP
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52 EXECUTE format('CREATE POLICY hide_staging ON %I '
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53 'FOR SELECT TO waterway_user USING (staging_done)', the_table);
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54 EXECUTE format('ALTER TABLE %I ENABLE ROW LEVEL SECURITY', the_table);
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55 END LOOP;
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56 END;
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57 $$ LANGUAGE plpgsql;
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58 SELECT create_hide_staging_policy();
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59 DROP FUNCTION create_hide_staging_policy;
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60
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61 CREATE POLICY see_yourself ON user_profiles FOR SELECT TO waterway_user
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62 USING (username = current_user);
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63 ALTER TABLE user_profiles ENABLE ROW LEVEL SECURITY;
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64
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65 CREATE POLICY own_templates ON templates FOR SELECT TO waterway_user
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66 USING (id IN(SELECT template_id FROM user_templates
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67 WHERE username = current_user));
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68 ALTER TABLE templates ENABLE ROW LEVEL SECURITY;
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69
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70 --
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71 -- RLS policies for waterway_admin
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72 --
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73
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74 -- Staging area
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75 -- TODO: add all relevant tables here
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76 CREATE POLICY responsibility_area ON bottlenecks FOR ALL TO waterway_admin
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77 USING (ST_Within(area, (SELECT area FROM responsibility_areas
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78 WHERE country = (SELECT country FROM user_profiles
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79 WHERE username = current_user))));
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80 CREATE POLICY responsibility_area ON sounding_results FOR ALL TO waterway_admin
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81 USING (ST_Within(area, (SELECT area FROM responsibility_areas
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82 WHERE country = (SELECT country FROM user_profiles
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83 WHERE username = current_user))));
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84
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85 CREATE POLICY manage_templates ON templates FOR ALL TO waterway_admin
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86 USING (id IN(SELECT t.id FROM templates t
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87 JOIN user_templates ut ON t.id = ut.template_id
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88 JOIN user_profiles p ON ut.username = p.username
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89 WHERE p.country = (SELECT country FROM user_profiles
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90 WHERE username = current_user)));
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91
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92 COMMIT;