66 lines
1.7 KiB
Go
66 lines
1.7 KiB
Go
package middleware
|
|
|
|
import (
|
|
"net/http"
|
|
|
|
"github.com/QuantumNous/new-api/common"
|
|
|
|
"github.com/gin-gonic/gin"
|
|
)
|
|
|
|
const (
|
|
EmailVerificationRateLimitMark = "EV"
|
|
EmailVerificationMaxRequests = 2 // 30秒内最多2次
|
|
EmailVerificationDuration = 30 // 30秒时间窗口
|
|
)
|
|
|
|
func redisEmailVerificationRateLimiter(c *gin.Context) {
|
|
allowed, _, ttlSeconds, err := redisFixedWindowTake(
|
|
c.Request.Context(),
|
|
redisIPRateLimitKey(EmailVerificationRateLimitMark, c.ClientIP()),
|
|
EmailVerificationMaxRequests,
|
|
EmailVerificationDuration,
|
|
)
|
|
if err != nil {
|
|
memoryEmailVerificationRateLimiter(c)
|
|
return
|
|
}
|
|
if allowed {
|
|
c.Next()
|
|
return
|
|
}
|
|
|
|
waitSeconds := int64(EmailVerificationDuration)
|
|
if ttlSeconds > 0 {
|
|
waitSeconds = ttlSeconds
|
|
}
|
|
|
|
common.ApiErrorStatus(c, http.StatusTooManyRequests, common.NewMessage("Please wait {{seconds}} seconds before requesting another verification code.", map[string]any{"seconds": waitSeconds}))
|
|
c.Abort()
|
|
}
|
|
|
|
func memoryEmailVerificationRateLimiter(c *gin.Context) {
|
|
key := EmailVerificationRateLimitMark + ":" + c.ClientIP()
|
|
|
|
if !inMemoryRateLimiter.Request(key, EmailVerificationMaxRequests, EmailVerificationDuration) {
|
|
common.ApiErrorStatus(c, http.StatusTooManyRequests, common.NewMessage("Please wait before requesting another verification code."))
|
|
c.Abort()
|
|
return
|
|
}
|
|
|
|
c.Next()
|
|
}
|
|
|
|
func EmailVerificationRateLimit() gin.HandlerFunc {
|
|
// Keep the fallback ready before requests arrive so a concurrent Redis
|
|
// outage cannot race the in-memory limiter's first initialization.
|
|
inMemoryRateLimiter.Init(common.RateLimitKeyExpirationDuration)
|
|
return func(c *gin.Context) {
|
|
if common.RedisEnabled {
|
|
redisEmailVerificationRateLimiter(c)
|
|
} else {
|
|
memoryEmailVerificationRateLimiter(c)
|
|
}
|
|
}
|
|
}
|