|
| 1 | +do $$ |
| 2 | +declare |
| 3 | + postgres_rolpassword text := (select rolpassword from pg_authid where rolname = 'postgres'); |
| 4 | + supabase_admin_rolpassword text := (select rolpassword from pg_authid where rolname = 'supabase_admin'); |
| 5 | + postgres_role_settings text[] := (select setconfig from pg_db_role_setting where setdatabase = 0 and setrole = 'postgres'::regrole); |
| 6 | + supabase_admin_role_settings text[] := (select setconfig from pg_db_role_setting where setdatabase = 0 and setrole = 'supabase_admin'::regrole); |
| 7 | + event_triggers jsonb[] := (select coalesce(array_agg(jsonb_build_object('name', evtname)), '{}') from pg_event_trigger where evtowner = 'postgres'::regrole); |
| 8 | + default_acls jsonb[] := ( |
| 9 | + select coalesce(array_agg(jsonb_build_object('oid', d.oid, 'role', a.rolname, 'schema', n.nspname, 'objtype', d.defaclobjtype, 'acl', defaclacl::text)), '{}') |
| 10 | + from pg_default_acl d |
| 11 | + join pg_authid a on a.oid = d.defaclrole |
| 12 | + left join pg_namespace n on n.oid = d.defaclnamespace |
| 13 | + ); |
| 14 | + -- We only care about swapping init_privs for extensions |
| 15 | + init_privs jsonb[] := ( |
| 16 | + select coalesce(array_agg(jsonb_build_object('objoid', objoid, 'classoid', classoid, 'initprivs', initprivs::text)), '{}') |
| 17 | + from pg_init_privs |
| 18 | + where privtype = 'e' |
| 19 | + ); |
| 20 | + schemas jsonb[] := ( |
| 21 | + select coalesce(array_agg(jsonb_build_object('oid', n.oid, 'owner', a.rolname, 'acl', nspacl::text)), '{}') |
| 22 | + from pg_namespace n |
| 23 | + join pg_authid a on a.oid = n.nspowner |
| 24 | + where true |
| 25 | + and n.nspname != 'information_schema' |
| 26 | + and not starts_with(n.nspname, 'pg_') |
| 27 | + ); |
| 28 | + types jsonb[] := ( |
| 29 | + select coalesce(array_agg(jsonb_build_object('oid', t.oid, 'owner', a.rolname, 'acl', t.typacl::text)), '{}') |
| 30 | + from pg_type t |
| 31 | + join pg_namespace n on n.oid = t.typnamespace |
| 32 | + join pg_authid a on a.oid = t.typowner |
| 33 | + where true |
| 34 | + and n.nspname != 'information_schema' |
| 35 | + and not starts_with(n.nspname, 'pg_') |
| 36 | + and ( |
| 37 | + t.typrelid = 0 |
| 38 | + or ( |
| 39 | + select |
| 40 | + c.relkind = 'c' |
| 41 | + from |
| 42 | + pg_class c |
| 43 | + where |
| 44 | + c.oid = t.typrelid |
| 45 | + ) |
| 46 | + ) |
| 47 | + and not exists ( |
| 48 | + select |
| 49 | + from |
| 50 | + pg_type el |
| 51 | + where |
| 52 | + el.oid = t.typelem |
| 53 | + and el.typarray = t.oid |
| 54 | + ) |
| 55 | + ); |
| 56 | + functions jsonb[] := ( |
| 57 | + select coalesce(array_agg(jsonb_build_object('oid', p.oid, 'owner', a.rolname, 'acl', p.proacl::text)), '{}') |
| 58 | + from pg_proc p |
| 59 | + join pg_namespace n on n.oid = p.pronamespace |
| 60 | + join pg_authid a on a.oid = p.proowner |
| 61 | + where true |
| 62 | + and n.nspname != 'information_schema' |
| 63 | + and not starts_with(n.nspname, 'pg_') |
| 64 | + ); |
| 65 | + relations jsonb[] := ( |
| 66 | + select coalesce(array_agg(jsonb_build_object('oid', c.oid, 'owner', a.rolname, 'acl', c.relacl::text)), '{}') |
| 67 | + from pg_class c |
| 68 | + join pg_namespace n on n.oid = c.relnamespace |
| 69 | + join pg_authid a on a.oid = c.relowner |
| 70 | + where true |
| 71 | + and n.nspname != 'information_schema' |
| 72 | + and not starts_with(n.nspname, 'pg_') |
| 73 | + and c.relkind not in ('c', 'i') |
| 74 | + ); |
| 75 | + rec record; |
| 76 | + obj jsonb; |
| 77 | +begin |
| 78 | + set local search_path = ''; |
| 79 | + |
| 80 | + alter role postgres rename to supabase_admin_; |
| 81 | + alter role supabase_admin rename to postgres; |
| 82 | + alter role supabase_admin_ rename to supabase_admin; |
| 83 | + |
| 84 | + -- role grants |
| 85 | + for rec in |
| 86 | + select * from pg_auth_members |
| 87 | + loop |
| 88 | + execute(format('revoke %I from %I;', rec.roleid::regrole, rec.member::regrole)); |
| 89 | + execute(format( |
| 90 | + 'grant %I to %I %s granted by %I;', |
| 91 | + case |
| 92 | + when rec.roleid = 'postgres'::regrole then 'supabase_admin' |
| 93 | + when rec.roleid = 'supabase_admin'::regrole then 'postgres' |
| 94 | + else rec.roleid::regrole |
| 95 | + end, |
| 96 | + case |
| 97 | + when rec.member = 'postgres'::regrole then 'supabase_admin' |
| 98 | + when rec.member = 'supabase_admin'::regrole then 'postgres' |
| 99 | + else rec.member::regrole |
| 100 | + end, |
| 101 | + case |
| 102 | + when rec.admin_option then 'with admin option' |
| 103 | + else '' |
| 104 | + end, |
| 105 | + case |
| 106 | + when rec.grantor = 'postgres'::regrole then 'supabase_admin' |
| 107 | + when rec.grantor = 'supabase_admin'::regrole then 'postgres' |
| 108 | + else rec.grantor::regrole |
| 109 | + end |
| 110 | + )); |
| 111 | + end loop; |
| 112 | + |
| 113 | + -- role passwords |
| 114 | + execute(format('alter role postgres password %L;', postgres_rolpassword)); |
| 115 | + execute(format('alter role supabase_admin password %L;', supabase_admin_rolpassword)); |
| 116 | + |
| 117 | + -- role settings |
| 118 | + -- TODO: don't modify system catalog directly |
| 119 | + update pg_db_role_setting set setconfig = postgres_role_settings where setdatabase = 0 and setrole = 'postgres'::regrole; |
| 120 | + update pg_db_role_setting set setconfig = supabase_admin_role_settings where setdatabase = 0 and setrole = 'supabase_admin'::regrole; |
| 121 | + |
| 122 | + reassign owned by postgres to supabase_admin; |
| 123 | + |
| 124 | + -- databases |
| 125 | + for rec in |
| 126 | + select * from pg_database where datname not in ('template0') |
| 127 | + loop |
| 128 | + execute(format('alter database %I owner to postgres;', rec.datname)); |
| 129 | + end loop; |
| 130 | + |
| 131 | + -- event triggers |
| 132 | + foreach obj in array event_triggers |
| 133 | + loop |
| 134 | + execute(format('alter event trigger %I owner to postgres;', obj->>'name')); |
| 135 | + end loop; |
| 136 | + |
| 137 | + -- publications |
| 138 | + for rec in |
| 139 | + select * from pg_publication |
| 140 | + loop |
| 141 | + execute(format('alter publication %I owner to postgres;', rec.pubname)); |
| 142 | + end loop; |
| 143 | + |
| 144 | + -- FDWs |
| 145 | + for rec in |
| 146 | + select * from pg_foreign_data_wrapper |
| 147 | + loop |
| 148 | + execute(format('alter foreign data wrapper %I owner to postgres;', rec.fdwname)); |
| 149 | + end loop; |
| 150 | + |
| 151 | + -- foreign servers |
| 152 | + for rec in |
| 153 | + select * from pg_foreign_server |
| 154 | + loop |
| 155 | + execute(format('alter server %I owner to postgres;', rec.srvname)); |
| 156 | + end loop; |
| 157 | + |
| 158 | + -- user mappings |
| 159 | + -- TODO: don't modify system catalog directly |
| 160 | + update pg_user_mapping set umuser = 'postgres'::regrole where umuser = 'supabase_admin'::regrole; |
| 161 | + |
| 162 | + -- init privs |
| 163 | + foreach obj in array init_privs |
| 164 | + loop |
| 165 | + update pg_init_privs set initprivs = (obj->>'initprivs')::aclitem[] where objoid = (obj->>'objoid')::oid and classoid = (obj->>'classoid')::oid; |
| 166 | + end loop; |
| 167 | + |
| 168 | + -- default acls |
| 169 | + foreach obj in array default_acls |
| 170 | + loop |
| 171 | + for rec in |
| 172 | + select grantor, grantee, privilege_type, is_grantable |
| 173 | + from aclexplode((obj->>'acl')::aclitem[]) |
| 174 | + loop |
| 175 | + if obj->>'role' in ('postgres', 'supabase_admin') or rec.grantee::regrole in ('postgres', 'supabase_admin') then |
| 176 | + execute(format('alter default privileges for role %I %s revoke %s on %s from %I' |
| 177 | + , case when obj->>'role' = 'postgres' then 'supabase_admin' |
| 178 | + when obj->>'role' = 'supabase_admin' then 'postgres' |
| 179 | + else obj->>'role' |
| 180 | + end |
| 181 | + , case when obj->>'schema' is null then '' |
| 182 | + else format('in schema %I', (obj->>'schema')::regnamespace) |
| 183 | + end |
| 184 | + , rec.privilege_type |
| 185 | + , case when obj->>'objtype' = 'r' then 'tables' |
| 186 | + when obj->>'objtype' = 'S' then 'sequences' |
| 187 | + when obj->>'objtype' = 'f' then 'functions' |
| 188 | + when obj->>'objtype' = 'T' then 'types' |
| 189 | + when obj->>'objtype' = 'n' then 'schemas' |
| 190 | + end |
| 191 | + , case when rec.grantee = 'postgres'::regrole then 'supabase_admin' |
| 192 | + when rec.grantee = 'supabase_admin'::regrole then 'postgres' |
| 193 | + else rec.grantee::regrole |
| 194 | + end |
| 195 | + )); |
| 196 | + end if; |
| 197 | + end loop; |
| 198 | + end loop; |
| 199 | + |
| 200 | + foreach obj in array default_acls |
| 201 | + loop |
| 202 | + for rec in |
| 203 | + select grantor, grantee, privilege_type, is_grantable |
| 204 | + from aclexplode((obj->>'acl')::aclitem[]) |
| 205 | + loop |
| 206 | + if obj->>'role' in ('postgres', 'supabase_admin') or rec.grantee::regrole in ('postgres', 'supabase_admin') then |
| 207 | + execute(format('alter default privileges for role %I %s grant %s on %s to %I %s' |
| 208 | + , obj->>'role' |
| 209 | + , case when obj->>'schema' is null then '' |
| 210 | + else format('in schema %I', (obj->>'schema')::regnamespace) |
| 211 | + end |
| 212 | + , rec.privilege_type |
| 213 | + , case when obj->>'objtype' = 'r' then 'tables' |
| 214 | + when obj->>'objtype' = 'S' then 'sequences' |
| 215 | + when obj->>'objtype' = 'f' then 'functions' |
| 216 | + when obj->>'objtype' = 'T' then 'types' |
| 217 | + when obj->>'objtype' = 'n' then 'schemas' |
| 218 | + end |
| 219 | + , rec.grantee::regrole |
| 220 | + , case when rec.is_grantable then 'with grant option' else '' end |
| 221 | + )); |
| 222 | + end if; |
| 223 | + end loop; |
| 224 | + end loop; |
| 225 | + |
| 226 | + -- schemas |
| 227 | + foreach obj in array schemas |
| 228 | + loop |
| 229 | + if obj->>'owner' = 'postgres' then |
| 230 | + execute(format('alter schema %s owner to postgres;', (obj->>'oid')::regnamespace)); |
| 231 | + end if; |
| 232 | + for rec in |
| 233 | + select grantor, grantee, privilege_type, is_grantable |
| 234 | + from aclexplode((obj->>'acl')::aclitem[]) |
| 235 | + where grantee::regrole in ('postgres', 'supabase_admin') |
| 236 | + loop |
| 237 | + execute(format('revoke %s on schema %s from %I', rec.privilege_type, (obj->>'oid')::regnamespace, case when rec.grantee = 'postgres'::regrole then 'supabase_admin' else 'postgres' end)); |
| 238 | + end loop; |
| 239 | + end loop; |
| 240 | + foreach obj in array schemas |
| 241 | + loop |
| 242 | + for rec in |
| 243 | + select grantor, grantee, privilege_type, is_grantable |
| 244 | + from aclexplode((obj->>'acl')::aclitem[]) |
| 245 | + where grantee::regrole in ('postgres', 'supabase_admin') |
| 246 | + loop |
| 247 | + execute(format('grant %s on schema %s to %I %s', rec.privilege_type, (obj->>'oid')::regnamespace, rec.grantee::regrole, case when rec.is_grantable then 'with grant option' else '' end)); |
| 248 | + end loop; |
| 249 | + end loop; |
| 250 | + |
| 251 | + -- types |
| 252 | + foreach obj in array types |
| 253 | + loop |
| 254 | + if obj->>'owner' = 'postgres' then |
| 255 | + execute(format('alter type %s owner to postgres;', (obj->>'oid')::regtype)); |
| 256 | + end if; |
| 257 | + for rec in |
| 258 | + select grantor, grantee, privilege_type, is_grantable |
| 259 | + from aclexplode((obj->>'acl')::aclitem[]) |
| 260 | + where grantee::regrole in ('postgres', 'supabase_admin') |
| 261 | + loop |
| 262 | + execute(format('revoke %s on type %s from %I', rec.privilege_type, (obj->>'oid')::regtype, case when rec.grantee = 'postgres'::regrole then 'supabase_admin' else 'postgres' end)); |
| 263 | + end loop; |
| 264 | + end loop; |
| 265 | + foreach obj in array types |
| 266 | + loop |
| 267 | + for rec in |
| 268 | + select grantor, grantee, privilege_type, is_grantable |
| 269 | + from aclexplode((obj->>'acl')::aclitem[]) |
| 270 | + where grantee::regrole in ('postgres', 'supabase_admin') |
| 271 | + loop |
| 272 | + execute(format('grant %s on type %s to %I %s', rec.privilege_type, (obj->>'oid')::regtype, rec.grantee::regrole, case when rec.is_grantable then 'with grant option' else '' end)); |
| 273 | + end loop; |
| 274 | + end loop; |
| 275 | + |
| 276 | + -- functions |
| 277 | + foreach obj in array functions |
| 278 | + loop |
| 279 | + if obj->>'owner' = 'postgres' then |
| 280 | + execute(format('alter routine %s(%s) owner to postgres;', (obj->>'oid')::regproc, pg_get_function_identity_arguments((obj->>'oid')::regproc))); |
| 281 | + end if; |
| 282 | + for rec in |
| 283 | + select grantor, grantee, privilege_type, is_grantable |
| 284 | + from aclexplode((obj->>'acl')::aclitem[]) |
| 285 | + where grantee::regrole in ('postgres', 'supabase_admin') |
| 286 | + loop |
| 287 | + execute(format('revoke %s on function %s(%s) from %I', rec.privilege_type, (obj->>'oid')::regproc, pg_get_function_identity_arguments((obj->>'oid')::regproc), case when rec.grantee = 'postgres'::regrole then 'supabase_admin' else 'postgres' end)); |
| 288 | + end loop; |
| 289 | + end loop; |
| 290 | + foreach obj in array functions |
| 291 | + loop |
| 292 | + for rec in |
| 293 | + select grantor, grantee, privilege_type, is_grantable |
| 294 | + from aclexplode((obj->>'acl')::aclitem[]) |
| 295 | + where grantee::regrole in ('postgres', 'supabase_admin') |
| 296 | + loop |
| 297 | + execute(format('grant %s on function %s(%s) to %I %s', rec.privilege_type, (obj->>'oid')::regproc, pg_get_function_identity_arguments((obj->>'oid')::regproc), rec.grantee::regrole, case when rec.is_grantable then 'with grant option' else '' end)); |
| 298 | + end loop; |
| 299 | + end loop; |
| 300 | + |
| 301 | + -- relations |
| 302 | + foreach obj in array relations |
| 303 | + loop |
| 304 | + -- obj->>'oid' (text) needs to be casted to oid first for some reason |
| 305 | + |
| 306 | + if obj->>'owner' = 'postgres' then |
| 307 | + execute(format('alter table %s owner to postgres;', (obj->>'oid')::oid::regclass)); |
| 308 | + end if; |
| 309 | + for rec in |
| 310 | + select grantor, grantee, privilege_type, is_grantable |
| 311 | + from aclexplode((obj->>'acl')::aclitem[]) |
| 312 | + where grantee::regrole in ('postgres', 'supabase_admin') |
| 313 | + loop |
| 314 | + execute(format('revoke %s on table %s from %I', rec.privilege_type, (obj->>'oid')::oid::regclass, case when rec.grantee = 'postgres'::regrole then 'supabase_admin' else 'postgres' end)); |
| 315 | + end loop; |
| 316 | + end loop; |
| 317 | + foreach obj in array relations |
| 318 | + loop |
| 319 | + -- obj->>'oid' (text) needs to be casted to oid first for some reason |
| 320 | + |
| 321 | + for rec in |
| 322 | + select grantor, grantee, privilege_type, is_grantable |
| 323 | + from aclexplode((obj->>'acl')::aclitem[]) |
| 324 | + where grantee::regrole in ('postgres', 'supabase_admin') |
| 325 | + loop |
| 326 | + execute(format('grant %s on table %s to %I %s', rec.privilege_type, (obj->>'oid')::oid::regclass, rec.grantee::regrole, case when rec.is_grantable then 'with grant option' else '' end)); |
| 327 | + end loop; |
| 328 | + end loop; |
| 329 | +end |
| 330 | +$$; |
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