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Add setting to enable/disable reverseDNSQuery function

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This commit is contained in:
Arthur Passos 2023-01-30 12:04:37 -03:00
parent 0e7b35c9f4
commit 513f430334
5 changed files with 13 additions and 3 deletions
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0
programs/server/config.d/reverse_dns_function.xml Normal file
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9
src/Functions/reverseDNSQuery.cpp
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@ -6,6 +6,8 @@
#include <DataTypes/DataTypeArray.h>
#include <Common/DNSResolver.h>
#include <Poco/Net/IPAddress.h>
#include <Interpreters/Context.h>
#include <Poco/Util/AbstractConfiguration.h>
namespace DB
{
@ -14,12 +16,14 @@ namespace ErrorCodes
{
extern const int NUMBER_OF_ARGUMENTS_DOESNT_MATCH;
extern const int BAD_ARGUMENTS;
extern const int FUNCTION_NOT_ALLOWED;
}
class ReverseDNSQuery : public IFunction
{
public:
static constexpr auto name = "reverseDNSQuery";
static constexpr auto allow_function_config_name = "allow_reverse_dns_query_function";
static FunctionPtr create(ContextPtr)
{
@ -33,6 +37,11 @@ public:
ColumnPtr executeImpl(const ColumnsWithTypeAndName & arguments, const DataTypePtr & data_type, size_t input_rows_count) const override
{
if (!Context::getGlobalContextInstance()->getConfigRef().getBool(allow_function_config_name, false))
{
throw Exception(ErrorCodes::FUNCTION_NOT_ALLOWED, "Function {} is not allowed because {} is not set", name, allow_function_config_name);
}
if (arguments.empty())
{
throw Exception(ErrorCodes::NUMBER_OF_ARGUMENTS_DOESNT_MATCH, "Function {} requires at least one argument", name);

3
tests/config/config.d/reverse_dns_query_function.xml Normal file
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@ -0,0 +1,3 @@
<clickhouse>
<allow_reverse_dns_query_function>1</allow_reverse_dns_query_function>
</clickhouse>

1
tests/config/install.sh
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@ -52,6 +52,7 @@ ln -sf $SRC_PATH/config.d/enable_zero_copy_replication.xml $DEST_SERVER_PATH/con
ln -sf $SRC_PATH/config.d/nlp.xml $DEST_SERVER_PATH/config.d/
ln -sf $SRC_PATH/config.d/enable_keeper_map.xml $DEST_SERVER_PATH/config.d/
ln -sf $SRC_PATH/config.d/display_name.xml $DEST_SERVER_PATH/config.d/
ln -sf $SRC_PATH/config.d/reverse_dns_query_function.xml $DEST_SERVER_PATH/config.d/
# Not supported with fasttest.
if [ "${DEST_SERVER_PATH}" = "/etc/clickhouse-server" ]

3
tests/integration/test_reverse_dns_query/configs/config.xml
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@ -1,3 +0,0 @@
<clickhouse>
<disable_internal_dns_cache>1</disable_internal_dns_cache>
</clickhouse>