diff --git a/doc/src/sgml/ref/alter_role.sgml b/doc/src/sgml/ref/alter_role.sgml index 2fbba53d25..b0981fdd5d 100644 --- a/doc/src/sgml/ref/alter_role.sgml +++ b/doc/src/sgml/ref/alter_role.sgml @@ -39,9 +39,9 @@ ALTER ROLE name [ [ WITH ] name RENAME TO new_name ALTER ROLE name [ IN DATABASE database_name ] SET configuration_parameter { TO | = } { value | DEFAULT } -ALTER ROLE name [ IN DATABASE database_name ] SET configuration_parameter FROM CURRENT -ALTER ROLE name [ IN DATABASE database_name ] RESET configuration_parameter -ALTER ROLE name [ IN DATABASE database_name ] RESET ALL +ALTER ROLE { name | ALL } [ IN DATABASE database_name ] SET configuration_parameter FROM CURRENT +ALTER ROLE { name | ALL } [ IN DATABASE database_name ] RESET configuration_parameter +ALTER ROLE { name | ALL } [ IN DATABASE database_name ] RESET ALL @@ -83,8 +83,15 @@ ALTER ROLE name [ IN DATABASE The remaining variants change a role's session default for a configuration variable, either for all databases or, when the IN - DATABASE clause is specified, only for sessions in - the named database. Whenever the role subsequently + DATABASE clause is specified, only for sessions in the named + database. If ALL is specified instead of a role name, + this changes the setting for all roles. Using ALL + with IN DATABASE is effectively the same as using the + command ALTER DATABASE ... SET .... + + + + Whenever the role subsequently starts a new session, the specified value becomes the session default, overriding whatever setting is present in postgresql.conf or has been received from the postgres @@ -93,12 +100,17 @@ ALTER ROLE name [ IN DATABASE does not cause new configuration values to be set. Settings set for all databases are overridden by database-specific settings - attached to a role. + attached to a role. Settings for specific databases or specific roles override + settings for all roles. + + + Superusers can change anyone's session defaults. Roles having CREATEROLE privilege can change defaults for non-superuser roles. Ordinary roles can only set defaults for themselves. Certain configuration variables cannot be set this way, or can only be - set if a superuser issues the command. + set if a superuser issues the command. Only superusers can change a setting + for all roles in all databases. @@ -307,6 +319,7 @@ ALTER ROLE fred IN DATABASE devel SET client_min_messages = DEBUG; + diff --git a/src/backend/commands/user.c b/src/backend/commands/user.c index 3ba877d253..5edb59af36 100644 --- a/src/backend/commands/user.c +++ b/src/backend/commands/user.c @@ -814,41 +814,46 @@ AlterRoleSet(AlterRoleSetStmt *stmt) { HeapTuple roletuple; Oid databaseid = InvalidOid; - Oid roleid; + Oid roleid = InvalidOid; - roletuple = SearchSysCache1(AUTHNAME, PointerGetDatum(stmt->role)); - - if (!HeapTupleIsValid(roletuple)) - ereport(ERROR, - (errcode(ERRCODE_UNDEFINED_OBJECT), - errmsg("role \"%s\" does not exist", stmt->role))); - - roleid = HeapTupleGetOid(roletuple); - - /* - * Obtain a lock on the role and make sure it didn't go away in the - * meantime. - */ - shdepLockAndCheckObject(AuthIdRelationId, HeapTupleGetOid(roletuple)); - - /* - * To mess with a superuser you gotta be superuser; else you need - * createrole, or just want to change your own settings - */ - if (((Form_pg_authid) GETSTRUCT(roletuple))->rolsuper) + if (stmt->role) { - if (!superuser()) + roletuple = SearchSysCache1(AUTHNAME, PointerGetDatum(stmt->role)); + + if (!HeapTupleIsValid(roletuple)) ereport(ERROR, - (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE), - errmsg("must be superuser to alter superusers"))); - } - else - { - if (!have_createrole_privilege() && - HeapTupleGetOid(roletuple) != GetUserId()) - ereport(ERROR, - (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE), - errmsg("permission denied"))); + (errcode(ERRCODE_UNDEFINED_OBJECT), + errmsg("role \"%s\" does not exist", stmt->role))); + + roleid = HeapTupleGetOid(roletuple); + + /* + * Obtain a lock on the role and make sure it didn't go away in the + * meantime. + */ + shdepLockAndCheckObject(AuthIdRelationId, HeapTupleGetOid(roletuple)); + + /* + * To mess with a superuser you gotta be superuser; else you need + * createrole, or just want to change your own settings + */ + if (((Form_pg_authid) GETSTRUCT(roletuple))->rolsuper) + { + if (!superuser()) + ereport(ERROR, + (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE), + errmsg("must be superuser to alter superusers"))); + } + else + { + if (!have_createrole_privilege() && + HeapTupleGetOid(roletuple) != GetUserId()) + ereport(ERROR, + (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE), + errmsg("permission denied"))); + } + + ReleaseSysCache(roletuple); } /* look up and lock the database, if specified */ @@ -856,10 +861,29 @@ AlterRoleSet(AlterRoleSetStmt *stmt) { databaseid = get_database_oid(stmt->database, false); shdepLockAndCheckObject(DatabaseRelationId, databaseid); + + if (!stmt->role) + { + /* + * If no role is specified, then this is effectively the same as + * ALTER DATABASE ... SET, so use the same permission check. + */ + if (!pg_database_ownercheck(databaseid, GetUserId())) + aclcheck_error(ACLCHECK_NOT_OWNER, ACL_KIND_DATABASE, + stmt->database); + } } - AlterSetting(databaseid, HeapTupleGetOid(roletuple), stmt->setstmt); - ReleaseSysCache(roletuple); + if (!stmt->role && !stmt->database) + { + /* Must be superuser to alter settings globally. */ + if (!superuser()) + ereport(ERROR, + (errcode(ERRCODE_INSUFFICIENT_PRIVILEGE), + errmsg("must be superuser to alter settings globally"))); + } + + AlterSetting(databaseid, roleid, stmt->setstmt); return roleid; } diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y index fee05311c5..b998431f5f 100644 --- a/src/backend/parser/gram.y +++ b/src/backend/parser/gram.y @@ -1020,6 +1020,14 @@ AlterRoleSetStmt: n->setstmt = $5; $$ = (Node *)n; } + | ALTER ROLE ALL opt_in_database SetResetClause + { + AlterRoleSetStmt *n = makeNode(AlterRoleSetStmt); + n->role = NULL; + n->database = $4; + n->setstmt = $5; + $$ = (Node *)n; + } ; diff --git a/src/backend/utils/init/postinit.c b/src/backend/utils/init/postinit.c index 7e21ceae88..84270061d8 100644 --- a/src/backend/utils/init/postinit.c +++ b/src/backend/utils/init/postinit.c @@ -1010,6 +1010,7 @@ process_settings(Oid databaseid, Oid roleid) ApplySetting(databaseid, roleid, relsetting, PGC_S_DATABASE_USER); ApplySetting(InvalidOid, roleid, relsetting, PGC_S_USER); ApplySetting(databaseid, InvalidOid, relsetting, PGC_S_DATABASE); + ApplySetting(InvalidOid, InvalidOid, relsetting, PGC_S_GLOBAL); heap_close(relsetting, AccessShareLock); } diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c index 6128694200..5437e0744f 100644 --- a/src/backend/utils/misc/guc.c +++ b/src/backend/utils/misc/guc.c @@ -500,6 +500,7 @@ const char *const GucSource_Names[] = /* PGC_S_ENV_VAR */ "environment variable", /* PGC_S_FILE */ "configuration file", /* PGC_S_ARGV */ "command line", + /* PGC_S_GLOBAL */ "global", /* PGC_S_DATABASE */ "database", /* PGC_S_USER */ "user", /* PGC_S_DATABASE_USER */ "database user", @@ -5149,7 +5150,7 @@ set_config_option(const char *name, const char *value, */ elevel = IsUnderPostmaster ? DEBUG3 : LOG; } - else if (source == PGC_S_DATABASE || source == PGC_S_USER || + else if (source == PGC_S_GLOBAL || source == PGC_S_DATABASE || source == PGC_S_USER || source == PGC_S_DATABASE_USER) elevel = WARNING; else diff --git a/src/include/utils/guc.h b/src/include/utils/guc.h index 0023c007e0..d497b1f654 100644 --- a/src/include/utils/guc.h +++ b/src/include/utils/guc.h @@ -87,6 +87,7 @@ typedef enum PGC_S_ENV_VAR, /* postmaster environment variable */ PGC_S_FILE, /* postgresql.conf */ PGC_S_ARGV, /* postmaster command line */ + PGC_S_GLOBAL, /* global in-database setting */ PGC_S_DATABASE, /* per-database setting */ PGC_S_USER, /* per-user setting */ PGC_S_DATABASE_USER, /* per-user-and-database setting */