Feature: update config API support raw yaml payload

config/config.go

@@ -2,11 +2,9 @@ package config
 
 import (
 	"fmt"
-	"io/ioutil"
 	"net"
 	"net/url"
 	"os"
-	"path/filepath"
 	"strings"
 
 	adapters "github.com/Dreamacro/clash/adapters/outbound"
@@ -109,40 +107,12 @@ type rawConfig struct {
 	Rule         []string                 `yaml:"Rule"`
 }
 
-// forward compatibility before 1.0
-func readRawConfig(path string) ([]byte, error) {
-	data, err := ioutil.ReadFile(path)
-	if err == nil && len(data) != 0 {
-		return data, nil
-	}
-
-	if filepath.Ext(path) != ".yaml" {
-		return nil, err
-	}
-
-	path = path[:len(path)-5] + ".yml"
-	if _, fallbackErr := os.Stat(path); fallbackErr == nil {
-		return ioutil.ReadFile(path)
-	}
-
-	return data, err
-}
-
-func readConfig(path string) (*rawConfig, error) {
-	if _, err := os.Stat(path); os.IsNotExist(err) {
-		return nil, err
-	}
-	data, err := readRawConfig(path)
-	if err != nil {
-		return nil, err
-	}
-
-	if len(data) == 0 {
-		return nil, fmt.Errorf("Configuration file %s is empty", path)
-	}
+// Parse config
+func Parse(buf []byte) (*Config, error) {
+	config := &Config{}
 
 	// config with some default value
-	rawConfig := &rawConfig{
+	rawCfg := &rawConfig{
 		AllowLan:       false,
 		BindAddress:    "*",
 		Mode:           T.Rule,
@@ -164,18 +134,10 @@ func readConfig(path string) (*rawConfig, error) {
 			},
 		},
 	}
-	err = yaml.Unmarshal([]byte(data), &rawConfig)
-	return rawConfig, err
-}
-
-// Parse config
-func Parse(path string) (*Config, error) {
-	config := &Config{}
-
-	rawCfg, err := readConfig(path)
-	if err != nil {
+	if err := yaml.Unmarshal(buf, &rawCfg); err != nil {
 		return nil, err
 	}
+
 	config.Experimental = &rawCfg.Experimental
 
 	general, err := parseGeneral(rawCfg)
@@ -226,9 +188,7 @@ func parseGeneral(cfg *rawConfig) (*General, error) {
 	logLevel := cfg.LogLevel
 
 	if externalUI != "" {
-		if !filepath.IsAbs(externalUI) {
-			externalUI = filepath.Join(C.Path.HomeDir(), externalUI)
-		}
+		externalUI = C.Path.Reslove(externalUI)
 
 		if _, err := os.Stat(externalUI); os.IsNotExist(err) {
 			return nil, fmt.Errorf("external-ui: %s not exist", externalUI)

constant/path.go

@@ -3,6 +3,7 @@ package constant
 import (
 	"os"
 	P "path"
+	"path/filepath"
 )
 
 const Name = "clash"
@@ -43,6 +44,15 @@ func (p *path) Config() string {
 	return p.configFile
 }
 
+// Reslove return a absolute path or a relative path with homedir
+func (p *path) Reslove(path string) string {
+	if !filepath.IsAbs(path) {
+		return filepath.Join(p.HomeDir(), path)
+	}
+
+	return path
+}
+
 func (p *path) MMDB() string {
 	return P.Join(p.homeDir, "Country.mmdb")
 }

hub/executor/executor.go

@@ -1,6 +1,11 @@
 package executor
 
 import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+
 	"github.com/Dreamacro/clash/component/auth"
 	trie "github.com/Dreamacro/clash/component/domain-trie"
 	"github.com/Dreamacro/clash/config"
@@ -12,6 +17,41 @@ import (
 	T "github.com/Dreamacro/clash/tunnel"
 )
 
+// forward compatibility before 1.0
+func readRawConfig(path string) ([]byte, error) {
+	data, err := ioutil.ReadFile(path)
+	if err == nil && len(data) != 0 {
+		return data, nil
+	}
+
+	if filepath.Ext(path) != ".yaml" {
+		return nil, err
+	}
+
+	path = path[:len(path)-5] + ".yml"
+	if _, fallbackErr := os.Stat(path); fallbackErr == nil {
+		return ioutil.ReadFile(path)
+	}
+
+	return data, err
+}
+
+func readConfig(path string) ([]byte, error) {
+	if _, err := os.Stat(path); os.IsNotExist(err) {
+		return nil, err
+	}
+	data, err := readRawConfig(path)
+	if err != nil {
+		return nil, err
+	}
+
+	if len(data) == 0 {
+		return nil, fmt.Errorf("Configuration file %s is empty", path)
+	}
+
+	return data, err
+}
+
 // Parse config with default config path
 func Parse() (*config.Config, error) {
 	return ParseWithPath(C.Path.Config())
@@ -19,7 +59,17 @@ func Parse() (*config.Config, error) {
 
 // ParseWithPath parse config with custom config path
 func ParseWithPath(path string) (*config.Config, error) {
-	return config.Parse(path)
+	buf, err := readConfig(path)
+	if err != nil {
+		return nil, err
+	}
+
+	return config.Parse(buf)
+}
+
+// Parse config with default config path
+func ParseWithBytes(buf []byte) (*config.Config, error) {
+	return ParseWithPath(C.Path.Config())
 }
 
 // ApplyConfig dispatch configure to all parts

hub/route/configs.go

@@ -4,6 +4,7 @@ import (
 	"net/http"
 	"path/filepath"
 
+	"github.com/Dreamacro/clash/config"
 	"github.com/Dreamacro/clash/hub/executor"
 	"github.com/Dreamacro/clash/log"
 	P "github.com/Dreamacro/clash/proxy"
@@ -77,7 +78,8 @@ func patchConfigs(w http.ResponseWriter, r *http.Request) {
 }
 
 type updateConfigRequest struct {
-	Path string `json:"path"`
+	Path    string `json:"path"`
+	Payload string `json:"payload"`
 }
 
 func updateConfigs(w http.ResponseWriter, r *http.Request) {
@@ -88,18 +90,30 @@ func updateConfigs(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	if !filepath.IsAbs(req.Path) {
-		render.Status(r, http.StatusBadRequest)
-		render.JSON(w, r, newError("path is not a absoluted path"))
-		return
-	}
-
 	force := r.URL.Query().Get("force") == "true"
-	cfg, err := executor.ParseWithPath(req.Path)
-	if err != nil {
-		render.Status(r, http.StatusBadRequest)
-		render.JSON(w, r, newError(err.Error()))
-		return
+	var cfg *config.Config
+	var err error
+
+	if req.Payload != "" {
+		cfg, err = executor.ParseWithBytes([]byte(req.Payload))
+		if err != nil {
+			render.Status(r, http.StatusBadRequest)
+			render.JSON(w, r, newError(err.Error()))
+			return
+		}
+	} else {
+		if !filepath.IsAbs(req.Path) {
+			render.Status(r, http.StatusBadRequest)
+			render.JSON(w, r, newError("path is not a absoluted path"))
+			return
+		}
+
+		cfg, err = executor.ParseWithPath(req.Path)
+		if err != nil {
+			render.Status(r, http.StatusBadRequest)
+			render.JSON(w, r, newError(err.Error()))
+			return
+		}
 	}
 
 	executor.ApplyConfig(cfg, force)