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app/vmauth: test how User-Agent header is set in requests to backend

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Aliaksandr Valialkin 2024-07-20 11:43:24 +02:00
parent e87b4d3768
commit dad3eefd74
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2 changed files with 48 additions and 5 deletions
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1
app/vmauth/main.go
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@ -245,6 +245,7 @@ func tryProcessingRequest(w http.ResponseWriter, r *http.Request, targetURL *url
req := sanitizeRequestHeaders(r)
req.URL = targetURL
req.Header.Set("User-Agent", "vmauth")
updateHeadersByConfig(req.Header, hc.RequestHeaders)
if hc.KeepOriginalHost == nil || !*hc.KeepOriginalHost {
if host := getHostHeader(hc.RequestHeaders); host != "" {

52
app/vmauth/main_test.go
View file

@ -40,13 +40,17 @@ func TestRequestHandler(t *testing.T) {
}()
r, err := http.NewRequest(http.MethodGet, requestURL, nil)
r.RequestURI = r.URL.RequestURI()
r.RemoteAddr = "42.2.3.84:6789"
r.Header.Set("X-Forwarded-For", "12.34.56.78")
if err != nil {
t.Fatalf("cannot initialize http request: %s", err)
}
r.RequestURI = r.URL.RequestURI()
r.RemoteAddr = "42.2.3.84:6789"
r.Header.Set("X-Forwarded-For", "12.34.56.78")
r.Header.Set("Connection", "Some-Header,Other-Header")
r.Header.Set("Some-Header", "foobar")
r.Header.Set("Pass-Header", "abc")
w := &fakeResponseWriter{}
if !requestHandler(w, r) {
t.Fatalf("unexpected false is returned from requestHandler")
@ -67,12 +71,18 @@ unauthorized_user:
url_prefix: {BACKEND}/foo?bar=baz`
requestURL := "http://some-host.com/abc/def?some_arg=some_value"
backendHandler := func(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "requested_url=http://%s%s\nX-Forwarded-For=%s", r.Host, r.URL, r.Header.Get("X-Forwarded-For"))
var bb bytes.Buffer
if err := r.Header.Write(&bb); err != nil {
panic(fmt.Errorf("unexpected error when marshaling headers: %w", err))
}
fmt.Fprintf(w, "requested_url=http://%s%s\n%s", r.Host, r.URL, bb.String())
}
responseExpected := `
statusCode=200
requested_url={BACKEND}/foo/abc/def?bar=baz&some_arg=some_value
X-Forwarded-For=12.34.56.78, 42.2.3.84`
Pass-Header: abc
User-Agent: vmauth
X-Forwarded-For: 12.34.56.78, 42.2.3.84`
f(cfgStr, requestURL, backendHandler, responseExpected)
// keep_original_host
@ -89,6 +99,38 @@ statusCode=200
requested_url=http://some-host.com/foo/abc/def?bar=baz`
f(cfgStr, requestURL, backendHandler, responseExpected)
// override user-agent header
cfgStr = `
unauthorized_user:
url_prefix: "{BACKEND}/foo?bar=baz"
headers:
- "User-Agent: foobar"`
requestURL = "http://some-host.com/abc/def"
backendHandler = func(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "requested_url=http://%s%s\nUser-Agent=%s", r.Host, r.URL, r.Header.Get("User-Agent"))
}
responseExpected = `
statusCode=200
requested_url={BACKEND}/foo/abc/def?bar=baz
User-Agent=foobar`
f(cfgStr, requestURL, backendHandler, responseExpected)
// delete user-agent header
cfgStr = `
unauthorized_user:
url_prefix: "{BACKEND}/foo?bar=baz"
headers:
- "User-Agent:"`
requestURL = "http://some-host.com/abc/def"
backendHandler = func(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "requested_url=http://%s%s\nUser-Agent=%s", r.Host, r.URL, r.Header.Get("User-Agent"))
}
responseExpected = `
statusCode=200
requested_url={BACKEND}/foo/abc/def?bar=baz
User-Agent=Go-http-client/1.1`
f(cfgStr, requestURL, backendHandler, responseExpected)
// override request host with non-empty host
cfgStr = `
unauthorized_user: