CLICKHOUSE-4257 remoteSecure

dbms/src/Interpreters/Cluster.cpp

@@ -67,12 +67,13 @@ Cluster::Address::Address(const Poco::Util::AbstractConfiguration & config, cons
 }
 
 
-Cluster::Address::Address(const String & host_port_, const String & user_, const String & password_, UInt16 clickhouse_port)
+Cluster::Address::Address(const String & host_port_, const String & user_, const String & password_, UInt16 clickhouse_port, bool secure_)
     : user(user_), password(password_)
 {
     auto parsed_host_port = parseAddress(host_port_, clickhouse_port);
     host_name = parsed_host_port.first;
     port = parsed_host_port.second;
+    secure = secure_ ? Protocol::Secure::Enable : Protocol::Secure::Disable;
 
     initially_resolved_address = DNSResolver::instance().resolveAddress(parsed_host_port.first, parsed_host_port.second);
     is_local = isLocal(*this, initially_resolved_address, clickhouse_port);
@@ -319,7 +320,7 @@ Cluster::Cluster(const Poco::Util::AbstractConfiguration & config, const Setting
 
 
 Cluster::Cluster(const Settings & settings, const std::vector<std::vector<String>> & names,
-                 const String & username, const String & password, UInt16 clickhouse_port, bool treat_local_as_remote)
+                 const String & username, const String & password, UInt16 clickhouse_port, bool treat_local_as_remote, bool secure)
 {
     UInt32 current_shard_num = 1;
 
@@ -327,7 +328,7 @@ Cluster::Cluster(const Settings & settings, const std::vector<std::vector<String
     {
         Addresses current;
         for (auto & replica : shard)
-            current.emplace_back(replica, username, password, clickhouse_port);
+            current.emplace_back(replica, username, password, clickhouse_port, secure);
 
         addresses_with_failover.emplace_back(current);
 

dbms/src/Interpreters/Cluster.h

@@ -24,7 +24,7 @@ public:
     /// This parameter is needed only to check that some address is local (points to ourself).
     Cluster(const Settings & settings, const std::vector<std::vector<String>> & names,
             const String & username, const String & password,
-            UInt16 clickhouse_port, bool treat_local_as_remote);
+            UInt16 clickhouse_port, bool treat_local_as_remote, bool secure = false);
 
     Cluster(const Cluster &) = delete;
     Cluster & operator=(const Cluster &) = delete;
@@ -69,7 +69,7 @@ public:
 
         Address() = default;
         Address(const Poco::Util::AbstractConfiguration & config, const String & config_prefix);
-        Address(const String & host_port_, const String & user_, const String & password_, UInt16 clickhouse_port);
+        Address(const String & host_port_, const String & user_, const String & password_, UInt16 clickhouse_port, bool secure_ = false);
 
         /// Returns 'escaped_host_name:port'
         String toString() const;

dbms/src/TableFunctions/TableFunctionRemote.cpp

@@ -152,7 +152,8 @@ StoragePtr TableFunctionRemote::executeImpl(const ASTPtr & ast_function, const C
         if (names.empty())
             throw Exception("Shard list is empty after parsing first argument", ErrorCodes::BAD_ARGUMENTS);
 
-        cluster = std::make_shared<Cluster>(context.getSettings(), names, username, password, context.getTCPPort(), false);
+        auto maybe_secure_port = context.getTCPPortSecure();
+        cluster = std::make_shared<Cluster>(context.getSettings(), names, username, password, (secure && maybe_secure_port) ? *maybe_secure_port : context.getTCPPort(), false, secure);
     }
 
     auto structure_remote_table = getStructureOfRemoteTable(*cluster, remote_database, remote_table, context, remote_table_function_ptr);
@@ -177,8 +178,8 @@ StoragePtr TableFunctionRemote::executeImpl(const ASTPtr & ast_function, const C
 }
 
 
-TableFunctionRemote::TableFunctionRemote(const std::string & name_)
-    : name(name_)
+TableFunctionRemote::TableFunctionRemote(const std::string & name_, bool secure)
+    : name{name_}, secure{secure}
 {
     is_cluster_function = name == "cluster";
 
@@ -193,6 +194,7 @@ TableFunctionRemote::TableFunctionRemote(const std::string & name_)
 void registerTableFunctionRemote(TableFunctionFactory & factory)
 {
     factory.registerFunction("remote", [] () -> TableFunctionPtr { return std::make_shared<TableFunctionRemote>("remote"); });
+    factory.registerFunction("remoteSecure", [] () -> TableFunctionPtr { return std::make_shared<TableFunctionRemote>("remote", /* secure = */ true); });
     factory.registerFunction("cluster", [] () -> TableFunctionPtr { return std::make_shared<TableFunctionRemote>("cluster"); });
 }
 

dbms/src/TableFunctions/TableFunctionRemote.h

@@ -16,7 +16,7 @@ namespace DB
 class TableFunctionRemote : public ITableFunction
 {
 public:
-    explicit TableFunctionRemote(const std::string & name_ = "remote");
+    explicit TableFunctionRemote(const std::string & name_ = "remote", bool secure = false);
 
     std::string getName() const override { return name; }
 
@@ -26,6 +26,7 @@ private:
     std::string name;
     bool is_cluster_function;
     std::string help_message;
+    bool secure;
 };
 
 }

dbms/tests/queries/0_stateless/00505_shard_secure.reference

@@ -0,0 +1,10 @@
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0

dbms/tests/queries/0_stateless/00505_shard_secure.sh

@@ -0,0 +1,24 @@
+#!/usr/bin/env bash
+
+# set -x
+
+CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+. $CURDIR/../shell_config.sh
+
+# Not default server config needed
+
+tcp_port_secure=`$CLICKHOUSE_EXTRACT_CONFIG -k tcp_port_secure 2>/dev/null`
+if [ -z $tcp_port_secure ]; then
+    # Secure port disabled. Fake result
+    cat $CURDIR/00505_shard_secure.reference
+else
+
+    $CLICKHOUSE_CLIENT -q "SELECT * FROM remoteSecure('127.0.0.{1,2}', system.one);"
+    $CLICKHOUSE_CLIENT -q "SELECT * FROM remoteSecure('127.0.0.{1,2}:$CLICKHOUSE_PORT_TCP_SECURE', system.one);"
+    $CLICKHOUSE_CLIENT -q "SELECT * FROM remoteSecure('127.0.0.{1,2}', system.one);"
+    $CLICKHOUSE_CLIENT -q "SELECT * FROM remoteSecure(test_shard_localhost_secure, system.one);"
+    $CLICKHOUSE_CLIENT -q "SELECT * FROM remote(test_shard_localhost_secure, system.one);"
+    $CLICKHOUSE_CLIENT -q "SELECT * FROM remoteSecure(test_shard_localhost, system.one);"
+    $CLICKHOUSE_CLIENT -q "SELECT * FROM remote(test_shard_localhost, system.one);"
+
+fi

docs/en/query_language/table_functions/remote.md

@@ -1,5 +1,5 @@
 
-# remote
+# remote, remoteSecure
 
 Allows you to access remote servers without creating a `Distributed` table.
 
@@ -72,5 +72,6 @@ The `remote` table function can be useful in the following cases:
 If the user is not specified, `default` is used.
 If the password is not specified, an empty password is used.
 
+`remoteSecure` - same as `remote` but with secured connection. Default port - `tcp_port_secure` from config or 9440.
 
 [Original article](https://clickhouse.yandex/docs/en/query_language/table_functions/remote/) <!--hide-->

docs/ru/query_language/table_functions/remote.md

@@ -1,5 +1,5 @@
 
-# remote
+# remote, remoteSecure
 
 Позволяет обратиться к удалённым серверам без создания таблицы типа `Distributed`.
 
@@ -72,4 +72,6 @@ example01-{01..02}-{1|2}
 Если пользователь не задан,то используется `default`.
 Если пароль не задан, то используется пустой пароль.
 
+`remoteSecure` - аналогично функции `remote` но с соединением по шифрованому каналу. Порт по умолчанию - `tcp_port_secure` из конфига или 9440.
+
 [Оригинальная статья](https://clickhouse.yandex/docs/ru/query_language/table_functions/remote/) <!--hide-->