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Use standard functions to achieve byteorder converstion

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This commit is contained in:
Harshavardhana 2015-04-25 13:02:01 -07:00
parent 5b0591ffad
commit b75f46aaa0
1 changed files with 29 additions and 10 deletions
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39
pkg/api/quota/quota_handler.go
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@ -17,10 +17,10 @@
package quota
import (
"encoding/binary"
"log"
"net"
"net/http"
"strconv"
"strings"
"sync"
"time"
)
@ -56,16 +56,35 @@ type httpQuotaHandler struct {
quotas *quotaMap
}
type longIP struct {
net.IP
}
// []byte to uint32 representation
func (p longIP) IptoUint32() uint32 {
ip := p.To4()
if ip == nil {
return 0
}
// golang net.IP is BigEndian
return binary.BigEndian.Uint32([]byte(ip))
}
// any uint32 back to IP representation
func uint32ToIP(ip uint32) net.IP {
addr := net.IP{0, 0, 0, 0}
binary.BigEndian.PutUint32(addr, ip)
return addr
}
// ServeHTTP is an http.Handler ServeHTTP method
func (h *httpQuotaHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
ipString := strings.Split(req.RemoteAddr, ":")[0]
ipSplit := strings.Split(ipString, ".")
q0, _ := strconv.Atoi(ipSplit[0])
q1, _ := strconv.Atoi(ipSplit[1])
q2, _ := strconv.Atoi(ipSplit[2])
q3, _ := strconv.Atoi(ipSplit[3])
longIP := uint32(q0)<<24 + uint32(q1)<<16 + uint32(q2)<<8 + uint32(q3)
h.quotas.Add(longIP, uint64(req.ContentLength))
host, _, _ := net.SplitHostPort(req.RemoteAddr)
log.Println(host)
longIP := longIP{net.ParseIP(host)}
h.quotas.Add(longIP.IptoUint32(), uint64(req.ContentLength))
log.Println("quota called")
log.Println(h.quotas)
h.handler.ServeHTTP(w, req)