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# File 'manifests/server/grant.pp', line 16
define postgresql::server::grant (
String $role,
String $db,
String $privilege = '',
Pattern[#/(?i:^COLUMN$)/,
/(?i:^ALL SEQUENCES IN SCHEMA$)/,
/(?i:^ALL TABLES IN SCHEMA$)/,
/(?i:^DATABASE$)/,
#/(?i:^FOREIGN DATA WRAPPER$)/,
#/(?i:^FOREIGN SERVER$)/,
/(?i:^FUNCTION$)/,
/(?i:^LANGUAGE$)/,
#/(?i:^PROCEDURAL LANGUAGE$)/,
/(?i:^TABLE$)/,
#/(?i:^TABLESPACE$)/,
/(?i:^SCHEMA$)/,
/(?i:^SEQUENCE$)/
#/(?i:^VIEW$)/
] $object_type = 'database',
Optional[Variant[Array[String,2,2],String[1]]] $object_name = undef,
Array[String[1],0] $object_arguments = [],
String $psql_db = $postgresql::server::default_database,
String $psql_user = $postgresql::server::user,
Integer $port = $postgresql::server::port,
Boolean $onlyif_exists = false,
Hash $connect_settings = $postgresql::server::default_connect_settings,
Enum['present', 'absent'] $ensure = 'present',
String $group = $postgresql::server::group,
String $psql_path = $postgresql::server::psql_path,
) {
case $ensure {
default: {
# default is 'present'
$sql_command = 'GRANT %s ON %s "%s%s" TO %s'
$sql_command_unquoted = 'GRANT %s ON %s %s%s TO %s'
$unless_is = true
}
'absent': {
$sql_command = 'REVOKE %s ON %s "%s%s" FROM %s'
$sql_command_unquoted = 'REVOKE %s ON %s %s%s FROM %s'
$unless_is = false
}
}
# Quote the role if not PUBLIC
$_query_role = $role ? {
'PUBLIC' => 'PUBLIC',
default => "\"${role}\""
}
if ! $object_name {
$_object_name = $db
} else {
$_object_name = $object_name
}
#
# Port, order of precedence: $port parameter, $connect_settings[PGPORT], $postgresql::server::port
#
if $port != undef {
$port_override = $port
} elsif $connect_settings != undef and has_key( $connect_settings, 'PGPORT') {
$port_override = undef
} else {
$port_override = $postgresql::server::port
}
## Munge the input values
$_object_type = upcase($object_type)
$_privilege = upcase($privilege)
# You can use ALL TABLES IN SCHEMA by passing schema_name to object_name
# You can use ALL SEQUENCES IN SCHEMA by passing schema_name to object_name
## Validate that the object type's privilege is acceptable
# TODO: this is a terrible hack; if they pass "ALL" as the desired privilege,
# we need a way to test for it--and has_database_privilege does not
# recognize 'ALL' as a valid privilege name. So we probably need to
# hard-code a mapping between 'ALL' and the list of actual privileges that
# it entails, and loop over them to check them. That sort of thing will
# probably need to wait until we port this over to ruby, so, for now, we're
# just going to assume that if they have "CREATE" privileges on a database,
# then they have "ALL". (I told you that it was terrible!)
case $_object_type {
'DATABASE': {
$unless_privilege = $_privilege ? {
'ALL' => 'CREATE',
'ALL PRIVILEGES' => 'CREATE',
Pattern[
/^$/,
/^CONNECT$/,
/^CREATE$/,
/^TEMP$/,
/^TEMPORARY$/,
] => $_privilege,
default => fail('Illegal value for $privilege parameter'),
}
$unless_function = 'has_database_privilege'
$on_db = $psql_db
$onlyif_function = $ensure ? {
default => undef,
'absent' => 'role_exists',
}
$arguments = ''
$_enquote_object = true
}
'SCHEMA': {
$unless_privilege = $_privilege ? {
'ALL' => 'CREATE',
'ALL PRIVILEGES' => 'CREATE',
Pattern[
/^$/,
/^CREATE$/,
/^USAGE$/,
] => $_privilege,
default => fail('Illegal value for $privilege parameter'),
}
$unless_function = 'has_schema_privilege'
$on_db = $db
$onlyif_function = undef
$arguments = ''
$_enquote_object = true
}
'SEQUENCE': {
$unless_privilege = $_privilege ? {
'ALL' => 'USAGE',
Pattern[
/^$/,
/^ALL PRIVILEGES$/,
/^SELECT$/,
/^UPDATE$/,
/^USAGE$/,
] => $_privilege,
default => fail('Illegal value for $privilege parameter'),
}
$unless_function = 'has_sequence_privilege'
$on_db = $db
$onlyif_function = undef
$arguments = ''
$_enquote_object = true
}
'ALL SEQUENCES IN SCHEMA': {
case $_privilege {
Pattern[
/^$/,
/^ALL$/,
/^ALL PRIVILEGES$/,
/^SELECT$/,
/^UPDATE$/,
/^USAGE$/,
]: {}
default: { fail('Illegal value for $privilege parameter') }
}
$unless_function = 'custom'
$on_db = $db
$onlyif_function = undef
$arguments = ''
$_enquote_object = true
$schema = $object_name
$custom_privilege = $_privilege ? {
'ALL' => 'USAGE',
'ALL PRIVILEGES' => 'USAGE',
default => $_privilege,
}
# This checks if there is a difference between the sequences in the
# specified schema and the sequences for which the role has the specified
# privilege. It uses the EXCEPT clause which computes the set of rows
# that are in the result of the first SELECT statement but not in the
# result of the second one. It then counts the number of rows from this
# operation. If this number is zero then the role has the specified
# privilege for all sequences in the schema and the whole query returns a
# single row, which satisfies the `unless` parameter of Postgresql_psql.
# If this number is not zero then there is at least one sequence for which
# the role does not have the specified privilege, making it necessary to
# execute the GRANT statement.
if $ensure == 'present' {
$custom_unless = "SELECT 1 WHERE NOT EXISTS (
SELECT sequence_name
FROM information_schema.sequences
WHERE sequence_schema='${schema}'
EXCEPT DISTINCT
SELECT object_name as sequence_name
FROM (
SELECT object_schema,
object_name,
grantee,
CASE privs_split
WHEN 'r' THEN 'SELECT'
WHEN 'w' THEN 'UPDATE'
WHEN 'U' THEN 'USAGE'
END AS privilege_type
FROM (
SELECT DISTINCT
object_schema,
object_name,
regexp_replace((regexp_split_to_array(regexp_replace(privs,E'/.*',''),'='))[1],'\"','','g') AS grantee,
regexp_split_to_table((regexp_split_to_array(regexp_replace(privs,E'/.*',''),'='))[2],E'\\s*') AS privs_split
FROM (
SELECT n.nspname as object_schema,
c.relname as object_name,
regexp_split_to_table(array_to_string(c.relacl,','),',') AS privs
FROM pg_catalog.pg_class c
LEFT JOIN pg_catalog.pg_namespace n ON c.relnamespace = n.oid
WHERE c.relkind = 'S'
AND n.nspname NOT IN ( 'pg_catalog', 'information_schema' )
) P1
) P2
) P3
WHERE grantee='${role}'
AND object_schema='${schema}'
AND privilege_type='${custom_privilege}'
)"
} else {
# ensure == absent
$custom_unless = "SELECT 1 WHERE NOT EXISTS (
SELECT object_name as sequence_name
FROM (
SELECT object_schema,
object_name,
grantee,
CASE privs_split
WHEN 'r' THEN 'SELECT'
WHEN 'w' THEN 'UPDATE'
WHEN 'U' THEN 'USAGE'
END AS privilege_type
FROM (
SELECT DISTINCT
object_schema,
object_name,
regexp_replace((regexp_split_to_array(regexp_replace(privs,E'/.*',''),'='))[1],'\"','','g') AS grantee,
regexp_split_to_table((regexp_split_to_array(regexp_replace(privs,E'/.*',''),'='))[2],E'\\s*') AS privs_split
FROM (
SELECT n.nspname as object_schema,
c.relname as object_name,
regexp_split_to_table(array_to_string(c.relacl,','),',') AS privs
FROM pg_catalog.pg_class c
LEFT JOIN pg_catalog.pg_namespace n ON c.relnamespace = n.oid
WHERE c.relkind = 'S'
AND n.nspname NOT IN ( 'pg_catalog', 'information_schema' )
) P1
) P2
) P3
WHERE grantee='${role}'
AND object_schema='${schema}'
AND privilege_type='${custom_privilege}'
)"
}
}
'TABLE': {
$unless_privilege = $_privilege ? {
'ALL' => 'INSERT',
Pattern[
/^$/,
/^ALL$/,
/^ALL PRIVILEGES$/,
/^DELETE$/,
/^INSERT$/,
/^REFERENCES$/,
/^SELECT$/,
/^TRIGGER$/,
/^TRUNCATE$/,
/^UPDATE$/,
] => $_privilege,
default => fail('Illegal value for $privilege parameter'),
}
$unless_function = 'has_table_privilege'
$on_db = $db
$onlyif_function = $onlyif_exists ? {
true => 'table_exists',
default => undef,
}
$arguments = ''
$_enquote_object = true
}
'ALL TABLES IN SCHEMA': {
case $_privilege {
Pattern[
/^$/,
/^ALL$/,
/^ALL PRIVILEGES$/,
/^DELETE$/,
/^INSERT$/,
/^REFERENCES$/,
/^SELECT$/,
/^TRIGGER$/,
/^TRUNCATE$/,
/^UPDATE$/,
]: {}
default: { fail('Illegal value for $privilege parameter') }
}
$unless_function = 'custom'
$on_db = $db
$onlyif_function = undef
$arguments = ''
$_enquote_object = true
$schema = $object_name
# Again there seems to be no easy way in plain SQL to check if ALL
# PRIVILEGES are granted on a table.
# There are currently 7 possible priviliges:
# ('SELECT','UPDATE','INSERT','DELETE','TRIGGER','REFERENCES','TRUNCATE')
# This list is consistant from Postgresql 8.0
#
# There are 4 cases to cover, each with it's own distinct unless clause:
# grant ALL
# grant SELECT (or INSERT or DELETE ...)
# revoke ALL
# revoke SELECT (or INSERT or DELETE ...)
if $ensure == 'present' {
if $_privilege == 'ALL' or $_privilege == 'ALL PRIVILEGES' {
# GRANT ALL
$custom_unless = "SELECT 1 WHERE NOT EXISTS
( SELECT 1 FROM
( SELECT t.tablename,count(privilege_type) AS priv_count FROM pg_catalog.pg_tables AS t
LEFT JOIN information_schema.role_table_grants AS g ON t.tablename = g.table_name AND g.grantee = '${role}' AND g.table_schema = '${schema}'
WHERE t.schemaname = '${schema}' AND
( g.grantee = '${role}' AND privilege_type IN ('SELECT','UPDATE','INSERT','DELETE','TRIGGER','REFERENCES','TRUNCATE') OR privilege_type IS NULL )
GROUP BY t.tablename
) AS j WHERE j.priv_count < 7
)"
} else {
# GRANT $_privilege
$custom_unless = "SELECT 1 WHERE NOT EXISTS
( SELECT 1 FROM pg_catalog.pg_tables AS t
LEFT JOIN information_schema.role_table_grants AS g ON t.tablename = g.table_name AND g.grantee = '${role}' AND g.table_schema = '${schema}' AND g.privilege_type = '${_privilege}'
WHERE t.schemaname = '${schema}' AND g.table_name IS NULL
)"
}
} else {
if $_privilege == 'ALL' or $_privilege == 'ALL PRIVILEGES' {
# REVOKE ALL
$custom_unless = "SELECT 1 WHERE NOT EXISTS
( SELECT table_name FROM information_schema.role_table_grants
WHERE grantee = '${role}' AND table_schema ='${schema}'
)"
} else {
# REVOKE $_privilege
$custom_unless = "SELECT 1 WHERE NOT EXISTS
( SELECT table_name FROM information_schema.role_table_grants
WHERE grantee = '${role}' AND table_schema ='${schema}'
AND privilege_type = '${_privilege}'
)"
}
}
}
'LANGUAGE': {
$unless_privilege = $_privilege ? {
'ALL' => 'USAGE',
'ALL PRIVILEGES' => 'USAGE',
Pattern[
/^$/,
/^CREATE$/,
/^USAGE$/,
] => $_privilege,
default => fail('Illegal value for $privilege parameter'),
}
$unless_function = 'has_language_privilege'
$on_db = $db
$onlyif_function = $onlyif_exists ? {
true => 'language_exists',
default => undef,
}
$arguments = ''
$_enquote_object = false
}
'FUNCTION': {
$unless_privilege = $_privilege ? {
'ALL' => 'EXECUTE',
'ALL PRIVILEGES' => 'EXECUTE',
Pattern[
/^$/,
/^EXECUTE$/,
] => $_privilege,
default => fail('Illegal value for $privilege parameter'),
}
$unless_function = 'has_function_privilege'
$on_db = $db
$onlyif_function = $onlyif_exists ? {
true => 'function_exists',
default => undef,
}
$_joined_args = join($object_arguments, ',')
$arguments = "(${_joined_args})"
$_enquote_object = false
}
default: {
fail("Missing privilege validation for object type ${_object_type}")
}
}
# This is used to give grant to "schemaname"."tablename"
# If you need such grant, use:
# postgresql::grant { 'table:foo':
# role => 'joe',
# ...
# object_type => 'TABLE',
# object_name => [$schema, $table],
# }
case $_object_name {
Array: {
$_togrant_object = $_enquote_object ? {
false => join($_object_name, '.'),
default => join($_object_name, '"."'),
}
# Never put double quotes into has_*_privilege function
$_granted_object = join($_object_name, '.')
}
default: {
$_granted_object = $_object_name
$_togrant_object = $_object_name
}
}
# Function like has_database_privilege() refer the PUBLIC pseudo role as 'public'
# So we need to replace 'PUBLIC' by 'public'.
$_unless = $unless_function ? {
false => undef,
'custom' => $custom_unless,
default => $role ? {
'PUBLIC' => "SELECT 1 WHERE ${unless_function}('public', '${_granted_object}${arguments}', '${unless_privilege}') = ${unless_is}",
default => "SELECT 1 WHERE ${unless_function}('${role}', '${_granted_object}${arguments}', '${unless_privilege}') = ${unless_is}",
}
}
$_onlyif = $onlyif_function ? {
'table_exists' => "SELECT true FROM pg_tables WHERE tablename = '${_togrant_object}'",
'language_exists' => "SELECT true from pg_language WHERE lanname = '${_togrant_object}'",
'role_exists' => "SELECT 1 FROM pg_roles WHERE rolname = '${role}' or '${role}' = 'PUBLIC'",
'function_exists' => "SELECT true FROM pg_proc WHERE (oid::regprocedure)::text = '${_togrant_object}${arguments}'",
default => undef,
}
$grant_cmd = $_enquote_object ? {
false => sprintf($sql_command_unquoted, $_privilege, $_object_type, $_togrant_object, $arguments, $_query_role),
default => sprintf($sql_command, $_privilege, $_object_type, $_togrant_object, $arguments, $_query_role),
}
postgresql_psql { "grant:${name}":
command => $grant_cmd,
db => $on_db,
port => $port_override,
connect_settings => $connect_settings,
psql_user => $psql_user,
psql_group => $group,
psql_path => $psql_path,
unless => $_unless,
onlyif => $_onlyif,
}
if($role != undef and defined(Postgresql::Server::Role[$role])) {
Postgresql::Server::Role[$role] -> Postgresql_psql["grant:${name}"]
}
if($db != undef and defined(Postgresql::Server::Database[$db])) {
Postgresql::Server::Database[$db] -> Postgresql_psql["grant:${name}"]
}
}
|