add global config support

api/global.go

@@ -1 +1,87 @@
 package api
+
+import (
+	"caddydash/config"
+	"caddydash/db"
+	"caddydash/gen"
+	"os"
+
+	"github.com/infinite-iroha/touka"
+)
+
+func PutGlobalConfig(cdb *db.ConfigDB, cfg *config.Config) touka.HandlerFunc {
+	return func(c *touka.Context) {
+		var config gen.CaddyGlobalConfig
+		err := c.ShouldBindJSON(&config)
+		if err != nil {
+			c.JSON(400, touka.H{"error": err.Error()})
+			return
+		}
+
+		var paramsGob []byte
+
+		paramsGob, err = gen.EncodeGobConfig(config)
+		if err != nil {
+			c.Warnf("encode gob config error: %v", err)
+			c.JSON(500, touka.H{"error": err.Error()})
+			return
+		}
+
+		// 取出数据库内的tmpl
+		tmplContent, err := cdb.GetGlobalTemplate("caddyfile")
+		if err != nil {
+			c.Warnf("get global template error: %v", err)
+			c.JSON(500, touka.H{"error": err.Error()})
+			return
+		}
+
+		renderedContent, err := gen.RenderGlobalConfig(paramsGob, tmplContent)
+		if err != nil {
+			c.Warnf("render global config error: %v", err)
+			c.JSON(500, touka.H{"error": err.Error()})
+			return
+		}
+
+		//回写条目到数据库
+		err = cdb.SaveGlobalConfig(db.GlobalConfig{
+			Filename:        "caddyfile",
+			Params:          paramsGob,
+			TmplContent:     tmplContent,
+			RenderedContent: renderedContent,
+		})
+		if err != nil {
+			c.Warnf("save global config error: %v", err)
+			c.JSON(500, touka.H{"error": err.Error()})
+			return
+		}
+
+		err = os.WriteFile(cfg.Server.CaddyDir+"Caddyfile", renderedContent, 0644)
+		if err != nil {
+			c.Warnf("write Caddyfile error: %v", err)
+			c.JSON(500, touka.H{"error": err.Error()})
+			return
+		}
+
+		c.JSON(200, touka.H{"message": "global config saved"})
+		return
+	}
+}
+
+// GetGlobalConfig 检出已有配置
+func GetGlobalConfig(cdb *db.ConfigDB) touka.HandlerFunc {
+	return func(c *touka.Context) {
+		globalConfig, err := cdb.GetGlobalConfig("caddyfile")
+		if err != nil {
+			c.JSON(500, touka.H{"error": err.Error()})
+			return
+		}
+
+		var config gen.CaddyGlobalConfig
+		err = gen.DecodeGobConfig(globalConfig.Params, &config)
+		if err != nil {
+			c.JSON(500, touka.H{"error": err.Error()})
+			return
+		}
+		c.JSON(200, config)
+	}
+}