vk-webhook-flooder-mock/middleware.go

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2023-01-13 13:28:05 +03:00
package main
import (
"log"
"net/http"
"sync/atomic"
"time"
ratelimit "github.com/JGLTechnologies/gin-rate-limit"
"github.com/gin-gonic/gin"
)
func mgRateLimit() gin.HandlerFunc {
var totalLimited uint32
store := ratelimit.InMemoryStore(&ratelimit.InMemoryOptions{
Rate: time.Second,
Limit: 50, // TODO: This must be changed to the 1000rps.
})
return ratelimit.RateLimiter(store, &ratelimit.Options{
ErrorHandler: func(c *gin.Context, info ratelimit.Info) {
cur := atomic.AddUint32(&totalLimited, 1)
log.Printf("%s: [%d] rate limited > %t, will reset at %s\n", c.ClientIP(), cur, info.RateLimited, info.ResetTime)
c.AbortWithStatus(http.StatusTooManyRequests)
},
KeyFunc: keyFunc,
})
}
func vkRateLimit() gin.HandlerFunc {
var totalLimited uint32
store := ratelimit.InMemoryStore(&ratelimit.InMemoryOptions{
Rate: time.Second,
Limit: 20,
})
return ratelimit.RateLimiter(store, &ratelimit.Options{
ErrorHandler: func(c *gin.Context, info ratelimit.Info) {
cur := atomic.AddUint32(&totalLimited, 1)
log.Printf("%s: [%d] VK request rate limited > %t, will reset at %s\n", c.ClientIP(), cur, info.RateLimited, info.ResetTime)
c.AbortWithStatus(http.StatusTooManyRequests)
},
KeyFunc: keyFunc,
})
}
func keyFunc(c *gin.Context) string {
return c.ClientIP()
}