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c.ClientIP() performance improvement

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benchmark                 old ns/op     new ns/op     delta
BenchmarkManyHandlers     4956          4463          -9.95%

benchmark                 old allocs     new allocs     delta
BenchmarkManyHandlers     16             13             -18.75%

benchmark                 old bytes     new bytes     delta
BenchmarkManyHandlers     256           216           -15.62%
This commit is contained in:
Manu Mtz-Almeida 2015-06-04 13:15:22 +02:00
parent 822b995687
commit 70325deb98
2 changed files with 17 additions and 7 deletions
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20
context.go
View File

@ -251,12 +251,15 @@ func (c *Context) BindWith(obj interface{}, b binding.Binding) error {
// Best effort algoritm to return the real client IP, it parses
// X-Real-IP and X-Forwarded-For in order to work properly with reverse-proxies such us: nginx or haproxy.
func (c *Context) ClientIP() string {
clientIP := strings.TrimSpace(c.Request.Header.Get("X-Real-IP"))
clientIP := strings.TrimSpace(c.requestHeader("X-Real-Ip"))
if len(clientIP) > 0 {
return clientIP
}
clientIP = c.Request.Header.Get("X-Forwarded-For")
clientIP = strings.TrimSpace(strings.Split(clientIP, ",")[0])
clientIP = c.requestHeader("X-Forwarded-For")
if index := strings.IndexByte(clientIP, ','); index >= 0 {
clientIP = clientIP[0:index]
}
clientIP = strings.TrimSpace(clientIP)
if len(clientIP) > 0 {
return clientIP
}
@ -264,7 +267,14 @@ func (c *Context) ClientIP() string {
}
func (c *Context) ContentType() string {
return filterFlags(c.Request.Header.Get("Content-Type"))
return filterFlags(c.requestHeader("Content-Type"))
}
func (c *Context) requestHeader(key string) string {
if values, _ := c.Request.Header[key]; len(values) > 0 {
return values[0]
}
return ""
}
/************************************/
@ -414,7 +424,7 @@ func (c *Context) NegotiateFormat(offered ...string) string {
panic("you must provide at least one offer")
}
if c.Accepted == nil {
c.Accepted = parseAccept(c.Request.Header.Get("Accept"))
c.Accepted = parseAccept(c.requestHeader("Accept"))
}
if len(c.Accepted) == 0 {
return offered[0]

4
context_test.go
View File

@ -454,7 +454,7 @@ func TestContextClientIP(t *testing.T) {
c.Request, _ = http.NewRequest("POST", "/", nil)
c.Request.Header.Set("X-Real-IP", " 10.10.10.10 ")
c.Request.Header.Set("X-Forwarded-For", " 20.20.20.20 , 30.30.30.30")
c.Request.Header.Set("X-Forwarded-For", " 20.20.20.20, 30.30.30.30")
c.Request.RemoteAddr = " 40.40.40.40 "
assert.Equal(t, c.ClientIP(), "10.10.10.10")
@ -462,7 +462,7 @@ func TestContextClientIP(t *testing.T) {
c.Request.Header.Del("X-Real-IP")
assert.Equal(t, c.ClientIP(), "20.20.20.20")
c.Request.Header.Set("X-Forwarded-For", "30.30.30.30")
c.Request.Header.Set("X-Forwarded-For", "30.30.30.30 ")
assert.Equal(t, c.ClientIP(), "30.30.30.30")
c.Request.Header.Del("X-Forwarded-For")