annotate schema/auth.sql @ 1782:30c76168e6d0

RLS gauge_measurements: Another attempt.
author Sascha L. Teichmann <sascha.teichmann@intevation.de>
date Fri, 11 Jan 2019 17:43:26 +0100
parents 48791416bea5
children 40cbfd268aa9
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1 -- This is Free Software under GNU Affero General Public License v >= 3.0
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2 -- without warranty, see README.md and license for details.
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3
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4 -- SPDX-License-Identifier: AGPL-3.0-or-later
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5 -- License-Filename: LICENSES/AGPL-3.0.txt
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6
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7 -- Copyright (C) 2018 by via donau
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8 -- – Österreichische Wasserstraßen-Gesellschaft mbH
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9 -- Software engineering by Intevation GmbH
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10
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11 -- Author(s):
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12 -- * Tom Gottried <tom@intevation.de>
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13 -- * Sascha Wilde <sascha.wilde@intevation.de>
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14 -- * Sascha L. Teichmann <sascha.teichmann@intevation.de>
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15
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16 BEGIN;
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17
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18 --
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19 -- Roles, privileges and policies for the GEMMA database
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20 --
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21
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22 -- We do not want any users to be able to create any objects
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23 REVOKE ALL ON SCHEMA public FROM PUBLIC;
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24
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25 --
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26 -- Privileges for waterway_user
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27 --
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28 GRANT USAGE ON SCHEMA public, users, waterway, systemconf TO waterway_user;
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29 GRANT SELECT ON ALL TABLES IN SCHEMA public, users, waterway TO waterway_user;
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30 GRANT SELECT ON systemconf.feature_colours TO waterway_user;
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31 GRANT UPDATE (pw, map_extent, email_address) ON users.list_users
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32 TO waterway_user;
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33
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34 --
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35 -- Extended privileges for waterway_admin
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36 --
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37 GRANT INSERT, UPDATE, DELETE ON ALL TABLES IN SCHEMA waterway
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38 TO waterway_admin;
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39 -- TODO: will there ever be UPDATEs and DELETEs or can we drop that for
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40 -- imported data due to historicisation? Special tables like
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41 -- import_configuration will further need UPDATE and DELETE privileges.
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42 GRANT INSERT, UPDATE, DELETE ON
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43 users.templates, users.user_templates TO waterway_admin;
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44
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45 --
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46 -- Extended privileges for sys_admin
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47 --
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48 GRANT INSERT, UPDATE, DELETE
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49 ON users.list_users, users.responsibility_areas TO sys_admin;
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50 GRANT USAGE ON SCHEMA sys_admin TO sys_admin;
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51 GRANT SELECT ON ALL TABLES IN SCHEMA sys_admin TO sys_admin;
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52 GRANT UPDATE ON sys_admin.system_config TO sys_admin;
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53 GRANT UPDATE ON systemconf.feature_colours TO sys_admin;
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54 GRANT UPDATE ON sys_admin.published_services TO sys_admin;
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55 GRANT INSERT, DELETE ON sys_admin.password_reset_requests TO sys_admin;
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56
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57 --
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58 -- Privileges assigned directly to metamorph
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59 --
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60 -- Needed for GeoServer's system inspection run before session startup SQL
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61 GRANT USAGE ON SCHEMA public TO metamorph;
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62
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63 --
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64 -- RLS policies for waterway_user
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65 --
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66 -- Sometimes using FOR ALL because we rely on GRANTed privileges for allowing
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67 -- data modifications generally.
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68 -- Sometimes using 'username IN(SELECT username FROM users.list_users)' instead
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69 -- of 'username = current_user', because waterway_admin is intentionally
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70 -- allowed more with these policies (note that the subselect implies different
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71 -- filtering on list_users depending on current_user).
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72 --
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73
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74 -- Staging area
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75 DO LANGUAGE plpgsql
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76 $$
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77 DECLARE the_table varchar;
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78 BEGIN
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79 FOREACH the_table IN ARRAY ARRAY[
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80 'gauge_measurements',
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81 'sections_stretches',
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82 'waterway_profiles',
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83 'fairway_dimensions',
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84 'bottlenecks',
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85 'sounding_results']
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86 LOOP
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87 EXECUTE format('CREATE POLICY hide_staging ON waterway.%I '
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88 'FOR SELECT TO waterway_user USING (staging_done)', the_table);
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89 EXECUTE format('ALTER TABLE waterway.%I ENABLE ROW LEVEL SECURITY',
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90 the_table);
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91 END LOOP;
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92 END;
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93 $$;
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94
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95 CREATE POLICY user_templates ON users.user_templates FOR ALL TO waterway_user
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96 USING (username IN(SELECT username FROM users.list_users));
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97 ALTER TABLE users.user_templates ENABLE ROW LEVEL SECURITY;
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98
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99 CREATE POLICY user_templates ON users.templates FOR ALL TO waterway_user
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100 USING (template_name IN(SELECT template_name FROM users.user_templates))
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101 WITH CHECK (true);
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102 ALTER TABLE users.templates ENABLE ROW LEVEL SECURITY;
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104 --
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105 -- RLS policies for waterway_admin
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106 --
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107
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108 CREATE OR REPLACE FUNCTION best_utm(g geometry) RETURNS integer AS
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109 $$
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110 DECLARE
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111 center geometry;
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112 BEGIN
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113 SELECT ST_Centroid(g) INTO center;
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114 RETURN
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115 CASE WHEN ST_Y(center) > 0 THEN
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116 32600
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117 ELSE
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118 32700
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119 END + floor((ST_X(center)+180)/6)::int + 1;
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120 END;
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121 $$
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122 LANGUAGE plpgsql
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123 IMMUTABLE;
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124
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125 CREATE OR REPLACE FUNCTION utm_covers(g geography) RETURNS boolean AS
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126 $$
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127 DECLARE
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128 user_area geometry;
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129 utm integer;
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130 BEGIN
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131 SELECT area::geometry FROM users.responsibility_areas INTO user_area
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132 WHERE country = users.current_user_country();
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133 SELECT best_utm(user_area) INTO utm;
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134 RETURN ST_Covers(
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135 ST_Transform(user_area, utm),
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136 ST_Transform(g::geometry, utm));
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137 END;
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138 $$
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139 LANGUAGE plpgsql
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140 STABLE;
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141
96
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142 -- Staging area
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143 -- TODO: add all relevant tables here
1229
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144
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145 CREATE POLICY same_country ON waterway.gauge_measurements
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146 FOR ALL TO waterway_admin
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147 USING ((fk_gauge_id).country_code = users.current_user_country());
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148
195
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149 CREATE POLICY responsibility_area ON waterway.bottlenecks
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150 FOR ALL TO waterway_admin
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151 USING (utm_covers(area));
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152
195
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153 CREATE POLICY responsibility_area ON waterway.sounding_results
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154 FOR ALL TO waterway_admin
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155 USING (utm_covers(area));
175
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156
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157 CREATE POLICY import_configuration_policy ON waterway.import_configuration
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158 FOR ALL TO waterway_admin
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159 USING (
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160 users.current_user_country() = (
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161 SELECT country FROM users.list_users lu
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162 WHERE lu.username = waterway.import_configuration.username));
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163
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164 CREATE POLICY import_configuration_policy_sys_admin ON waterway.import_configuration
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165 FOR ALL TO sys_admin
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166 USING (true);
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167
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168 ALTER table waterway.import_configuration ENABLE ROW LEVEL SECURITY;
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169
96
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170 COMMIT;