Commit 92af3ee4 authored by Jannick Fahlbusch's avatar Jannick Fahlbusch

Add hostname template action

This adds the ability to display the remote hostname
of the visitors IP with template actions.
parent 729e4f02
...@@ -63,6 +63,18 @@ func (c Context) Header(name string) string { ...@@ -63,6 +63,18 @@ func (c Context) Header(name string) string {
return c.Req.Header.Get(name) return c.Req.Header.Get(name)
} }
// Hostname gets the (remote) hostname of the client making the request.
func (c Context) Hostname() string {
ip := c.IP()
hostnameList, err := net.LookupAddr(ip)
if err != nil || len(hostnameList) == 0 {
return c.Req.RemoteAddr
}
return hostnameList[0]
}
// Env gets a map of the environment variables. // Env gets a map of the environment variables.
func (c Context) Env() map[string]string { func (c Context) Env() map[string]string {
osEnv := os.Environ() osEnv := os.Environ()
......
...@@ -244,6 +244,37 @@ func TestHeader(t *testing.T) { ...@@ -244,6 +244,37 @@ func TestHeader(t *testing.T) {
} }
} }
func TestHostname(t *testing.T) {
context := getContextOrFail(t)
tests := []struct {
inputRemoteAddr string
expectedHostname string
}{
// Test 0 - ipv4 with port
{"8.8.8.8:1111", "google-public-dns-a.google.com."},
// Test 1 - ipv4 without port
{"8.8.8.8", "google-public-dns-a.google.com."},
// Test 2 - ipv6 with port
{"[2001:4860:4860::8888]:11", "google-public-dns-a.google.com."},
// Test 3 - ipv6 without port and brackets
{"2001:4860:4860::8888", "google-public-dns-a.google.com."},
// Test 4 - no hostname available
{"1.1.1.1", "1.1.1.1"},
}
for i, test := range tests {
testPrefix := getTestPrefix(i)
context.Req.RemoteAddr = test.inputRemoteAddr
actualHostname := context.Hostname()
if actualHostname != test.expectedHostname {
t.Errorf(testPrefix+"Expected hostname %s, found %s", test.expectedHostname, actualHostname)
}
}
}
func TestEnv(t *testing.T) { func TestEnv(t *testing.T) {
context := getContextOrFail(t) context := getContextOrFail(t)
......
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