wip: 完成 client api 分析

internal/middleware/analysis/new.go

@@ -0,0 +1,69 @@
+/*
+analysis:
+
+	对访问 es 的 api 做一个初步的分类:
+	- 是不是一次 client 的请求
+	- 操作的 indixes 是哪些
+	- 使用的对应的 es 的 api 是哪个?
+*/
+package analysis
+
+import (
+	"strings"
+
+	"esway/internal/log"
+	"esway/internal/model"
+	"esway/internal/opt"
+
+	"github.com/loveuer/nf"
+	"github.com/samber/lo"
+)
+
+const LocalKey = "es"
+
+func New() nf.HandlerFunc {
+	return func(c *nf.Ctx) error {
+		local := &model.ESReqRes{
+			ClientRequest: false,
+			Path:          c.Path(),
+			Method:        c.Method(),
+			Indixes:       []string{},
+			Api:           model.ESApiUnknown,
+		}
+
+		defer func() {
+			c.Locals(LocalKey, local)
+			if opt.Cfg.Debug {
+				log.Debug(c.Context(), "middleware.analysis: local = %#v", *local)
+			}
+		}()
+
+		if len(local.Path) == 0 || strings.HasPrefix(local.Path, "/_") || strings.HasPrefix(local.Method, "/.") {
+			return c.Next()
+		}
+
+		paths := strings.Split(local.Path[1:], "/")
+
+		local.ClientRequest = true
+		local.Indixes = lo.FilterMap(
+			strings.Split(paths[0], ","),
+			func(item string, idx int) (string, bool) {
+				val := strings.TrimSpace(item)
+				return val, val != ""
+			},
+		)
+
+		if len(paths) < 2 {
+			return c.Next()
+		}
+
+		switch paths[1] {
+		case "_doc":
+		case "_search":
+		case "_update":
+		case "_update_by_query":
+		}
+
+		return c.Next()
+	}
+}