support yaml/json/toml configuration format, make ini deprecated (#3599)

pkg/config/v1/validation/client.go

@@ -0,0 +1,90 @@
+// Copyright 2023 The frp Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package validation
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/samber/lo"
+
+	v1 "github.com/fatedier/frp/pkg/config/v1"
+)
+
+func ValidateClientCommonConfig(c *v1.ClientCommonConfig) (Warning, error) {
+	var (
+		warnings Warning
+		errs     error
+	)
+	if c.Transport.HeartbeatTimeout > 0 && c.Transport.HeartbeatInterval > 0 {
+		if c.Transport.HeartbeatTimeout < c.Transport.HeartbeatInterval {
+			errs = AppendError(errs, fmt.Errorf("invalid transport.heartbeatTimeout, heartbeat timeout should not less than heartbeat interval"))
+		}
+	}
+
+	if !lo.FromPtr(c.Transport.TLS.Enable) {
+		checkTLSConfig := func(name string, value string) Warning {
+			if value != "" {
+				return fmt.Errorf("%s is invalid when transport.tls.enable is false", name)
+			}
+			return nil
+		}
+
+		warnings = AppendError(warnings, checkTLSConfig("transport.tls.certFile", c.Transport.TLS.CertFile))
+		warnings = AppendError(warnings, checkTLSConfig("transport.tls.keyFile", c.Transport.TLS.KeyFile))
+		warnings = AppendError(warnings, checkTLSConfig("transport.tls.trustedCaFile", c.Transport.TLS.TrustedCaFile))
+	}
+
+	if !lo.Contains([]string{"tcp", "kcp", "quic", "websocket", "wss"}, c.Transport.Protocol) {
+		errs = AppendError(errs, fmt.Errorf("invalid transport.protocol, only support tcp, kcp, quic, websocket, wss"))
+	}
+
+	for _, f := range c.IncludeConfigFiles {
+		absDir, err := filepath.Abs(filepath.Dir(f))
+		if err != nil {
+			errs = AppendError(errs, fmt.Errorf("include: parse directory of %s failed: %v", f, err))
+			continue
+		}
+		if _, err := os.Stat(absDir); os.IsNotExist(err) {
+			errs = AppendError(errs, fmt.Errorf("include: directory of %s not exist", f))
+		}
+	}
+	return warnings, errs
+}
+
+func ValidateAllClientConfig(c *v1.ClientCommonConfig, pxyCfgs []v1.ProxyConfigurer, visitorCfgs []v1.VisitorConfigurer) (Warning, error) {
+	var warnings Warning
+	if c != nil {
+		warning, err := ValidateClientCommonConfig(c)
+		warnings = AppendError(warnings, warning)
+		if err != nil {
+			return err, warnings
+		}
+	}
+
+	for _, c := range pxyCfgs {
+		if err := ValidateProxyConfigurerForClient(c); err != nil {
+			return warnings, fmt.Errorf("proxy %s: %v", c.GetBaseConfig().Name, err)
+		}
+	}
+
+	for _, c := range visitorCfgs {
+		if err := ValidateVisitorConfigurer(c); err != nil {
+			return warnings, fmt.Errorf("visitor %s: %v", c.GetBaseConfig().Name, err)
+		}
+	}
+	return warnings, nil
+}