mirror of https://github.com/minio/minio.git
85 lines
2.2 KiB
Go
85 lines
2.2 KiB
Go
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/*
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* Minimalist Object Storage, (C) 2015 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package quota
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import (
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"log"
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"net/http"
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"strconv"
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"strings"
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"sync"
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"time"
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)
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// map[minute][address] = current quota
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type quotaMap struct {
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sync.RWMutex
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data map[int64]map[uint32]uint64
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limit uint64
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duration int64
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}
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func (q *quotaMap) Add(ip uint32, size uint64) bool {
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currentMinute := time.Now().Unix() / q.duration
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expiredQuotas := (time.Now().Unix() / q.duration) - 5
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for time := range q.data {
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if time < expiredQuotas {
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delete(q.data, time)
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}
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}
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log.Println(currentMinute)
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if _, ok := q.data[currentMinute]; !ok {
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q.data[currentMinute] = make(map[uint32]uint64)
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}
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currentData, _ := q.data[currentMinute][ip]
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q.data[currentMinute][ip] = currentData + size
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return false
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}
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// HttpQuotaHandler
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type httpQuotaHandler struct {
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handler http.Handler
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quotas *quotaMap
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}
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// ServeHTTP is an http.Handler ServeHTTP method
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func (h *httpQuotaHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
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ipString := strings.Split(req.RemoteAddr, ":")[0]
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ipSplit := strings.Split(ipString, ".")
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q0, _ := strconv.Atoi(ipSplit[0])
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q1, _ := strconv.Atoi(ipSplit[1])
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q2, _ := strconv.Atoi(ipSplit[2])
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q3, _ := strconv.Atoi(ipSplit[3])
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longIP := uint32(q0)<<24 + uint32(q1)<<16 + uint32(q2)<<8 + uint32(q3)
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h.quotas.Add(longIP, uint64(req.ContentLength))
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log.Println("quota called")
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log.Println(h.quotas)
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h.handler.ServeHTTP(w, req)
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}
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// Handler implements quotas
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func Handler(h http.Handler, limit int64) http.Handler {
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return &httpQuotaHandler{
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handler: h,
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quotas: "aMap{
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data: make(map[int64]map[uint32]uint64),
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limit: uint64(limit),
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duration: int64(60),
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},
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}
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}
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