init

go-gost/x/api/config_rate_limiter.go

@@ -0,0 +1,182 @@
+package api
+
+import (
+	"fmt"
+	"net/http"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+	"github.com/go-gost/x/config"
+	parser "github.com/go-gost/x/config/parsing/limiter"
+	"github.com/go-gost/x/registry"
+)
+
+// swagger:parameters createRateLimiterRequest
+type createRateLimiterRequest struct {
+	// in: body
+	Data config.LimiterConfig `json:"data"`
+}
+
+// successful operation.
+// swagger:response createRateLimiterResponse
+type createRateLimiterResponse struct {
+	Data Response
+}
+
+func createRateLimiter(ctx *gin.Context) {
+	// swagger:route POST /config/rlimiters Limiter createRateLimiterRequest
+	//
+	// Create a new rate limiter, the name of limiter must be unique in limiter list.
+	//
+	//     Security:
+	//       basicAuth: []
+	//
+	//     Responses:
+	//       200: createRateLimiterResponse
+
+	var req createRateLimiterRequest
+	ctx.ShouldBindJSON(&req.Data)
+
+	name := strings.TrimSpace(req.Data.Name)
+	if name == "" {
+		writeError(ctx, NewError(http.StatusBadRequest, ErrCodeInvalid, "limiter name is required"))
+		return
+	}
+	req.Data.Name = name
+
+	if registry.RateLimiterRegistry().IsRegistered(name) {
+		writeError(ctx, NewError(http.StatusBadRequest, ErrCodeDup, fmt.Sprintf("limiter %s already exists", name)))
+		return
+	}
+
+	v := parser.ParseRateLimiter(&req.Data)
+
+	if err := registry.RateLimiterRegistry().Register(name, v); err != nil {
+		writeError(ctx, NewError(http.StatusBadRequest, ErrCodeDup, fmt.Sprintf("limiter %s already exists", name)))
+		return
+	}
+
+	config.OnUpdate(func(c *config.Config) error {
+		c.RLimiters = append(c.RLimiters, &req.Data)
+		return nil
+	})
+
+	ctx.JSON(http.StatusOK, Response{
+		Msg: "OK",
+	})
+}
+
+// swagger:parameters updateRateLimiterRequest
+type updateRateLimiterRequest struct {
+	// in: path
+	// required: true
+	Limiter string `uri:"limiter" json:"limiter"`
+	// in: body
+	Data config.LimiterConfig `json:"data"`
+}
+
+// successful operation.
+// swagger:response updateRateLimiterResponse
+type updateRateLimiterResponse struct {
+	Data Response
+}
+
+func updateRateLimiter(ctx *gin.Context) {
+	// swagger:route PUT /config/rlimiters/{limiter} Limiter updateRateLimiterRequest
+	//
+	// Update rate limiter by name, the limiter must already exist.
+	//
+	//     Security:
+	//       basicAuth: []
+	//
+	//     Responses:
+	//       200: updateRateLimiterResponse
+
+	var req updateRateLimiterRequest
+	ctx.ShouldBindUri(&req)
+	ctx.ShouldBindJSON(&req.Data)
+
+	name := strings.TrimSpace(req.Limiter)
+
+	if !registry.RateLimiterRegistry().IsRegistered(name) {
+		writeError(ctx, NewError(http.StatusBadRequest, ErrCodeNotFound, fmt.Sprintf("limiter %s not found", name)))
+		return
+	}
+
+	req.Data.Name = name
+
+	v := parser.ParseRateLimiter(&req.Data)
+
+	registry.RateLimiterRegistry().Unregister(name)
+
+	if err := registry.RateLimiterRegistry().Register(name, v); err != nil {
+		writeError(ctx, NewError(http.StatusBadRequest, ErrCodeDup, fmt.Sprintf("limiter %s already exists", name)))
+		return
+	}
+
+	config.OnUpdate(func(c *config.Config) error {
+		for i := range c.RLimiters {
+			if c.RLimiters[i].Name == name {
+				c.RLimiters[i] = &req.Data
+				break
+			}
+		}
+		return nil
+	})
+
+	ctx.JSON(http.StatusOK, Response{
+		Msg: "OK",
+	})
+}
+
+// swagger:parameters deleteRateLimiterRequest
+type deleteRateLimiterRequest struct {
+	// in: path
+	// required: true
+	Limiter string `uri:"limiter" json:"limiter"`
+}
+
+// successful operation.
+// swagger:response deleteRateLimiterResponse
+type deleteRateLimiterResponse struct {
+	Data Response
+}
+
+func deleteRateLimiter(ctx *gin.Context) {
+	// swagger:route DELETE /config/rlimiters/{limiter} Limiter deleteRateLimiterRequest
+	//
+	// Delete rate limiter by name.
+	//
+	//     Security:
+	//       basicAuth: []
+	//
+	//     Responses:
+	//       200: deleteRateLimiterResponse
+
+	var req deleteRateLimiterRequest
+	ctx.ShouldBindUri(&req)
+
+	name := strings.TrimSpace(req.Limiter)
+
+	if !registry.RateLimiterRegistry().IsRegistered(name) {
+		writeError(ctx, NewError(http.StatusBadRequest, ErrCodeNotFound, fmt.Sprintf("limiter %s not found", name)))
+		return
+	}
+	registry.RateLimiterRegistry().Unregister(name)
+
+	config.OnUpdate(func(c *config.Config) error {
+		limiteres := c.RLimiters
+		c.RLimiters = nil
+		for _, s := range limiteres {
+			if s.Name == name {
+				continue
+			}
+			c.RLimiters = append(c.RLimiters, s)
+		}
+		return nil
+	})
+
+	ctx.JSON(http.StatusOK, Response{
+		Msg: "OK",
+	})
+}