VictoriaMetrics/app/vmauth/target_url_test.go
2023-11-13 22:32:22 +01:00

253 lines
7.5 KiB
Go

package main
import (
"fmt"
"net/url"
"reflect"
"testing"
)
func TestDropPrefixParts(t *testing.T) {
f := func(path string, parts int, expectedResult string) {
t.Helper()
result := dropPrefixParts(path, parts)
if result != expectedResult {
t.Fatalf("unexpected result; got %q; want %q", result, expectedResult)
}
}
f("", 0, "")
f("", 1, "")
f("", 10, "")
f("foo", 0, "foo")
f("foo", -1, "foo")
f("foo", 1, "")
f("/foo", 0, "/foo")
f("/foo/bar", 0, "/foo/bar")
f("/foo/bar/baz", 0, "/foo/bar/baz")
f("foo", 0, "foo")
f("foo/bar", 0, "foo/bar")
f("foo/bar/baz", 0, "foo/bar/baz")
f("/foo/", 0, "/foo/")
f("/foo/bar/", 0, "/foo/bar/")
f("/foo/bar/baz/", 0, "/foo/bar/baz/")
f("/foo", 1, "")
f("/foo/bar", 1, "/bar")
f("/foo/bar/baz", 1, "/bar/baz")
f("foo", 1, "")
f("foo/bar", 1, "/bar")
f("foo/bar/baz", 1, "/bar/baz")
f("/foo/", 1, "/")
f("/foo/bar/", 1, "/bar/")
f("/foo/bar/baz/", 1, "/bar/baz/")
f("/foo", 2, "")
f("/foo/bar", 2, "")
f("/foo/bar/baz", 2, "/baz")
f("foo", 2, "")
f("foo/bar", 2, "")
f("foo/bar/baz", 2, "/baz")
f("/foo/", 2, "")
f("/foo/bar/", 2, "/")
f("/foo/bar/baz/", 2, "/baz/")
f("/foo", 3, "")
f("/foo/bar", 3, "")
f("/foo/bar/baz", 3, "")
f("foo", 3, "")
f("foo/bar", 3, "")
f("foo/bar/baz", 3, "")
f("/foo/", 3, "")
f("/foo/bar/", 3, "")
f("/foo/bar/baz/", 3, "/")
f("/foo/", 4, "")
f("/foo/bar/", 4, "")
f("/foo/bar/baz/", 4, "")
}
func TestCreateTargetURLSuccess(t *testing.T) {
f := func(ui *UserInfo, requestURI, expectedTarget, expectedRequestHeaders, expectedResponseHeaders string,
expectedRetryStatusCodes []int, expectedDropSrcPathPrefixParts int) {
t.Helper()
u, err := url.Parse(requestURI)
if err != nil {
t.Fatalf("cannot parse %q: %s", requestURI, err)
}
u = normalizeURL(u)
up, hc, retryStatusCodes, dropSrcPathPrefixParts := ui.getURLPrefixAndHeaders(u)
if up == nil {
t.Fatalf("cannot determie backend: %s", err)
}
bu := up.getLeastLoadedBackendURL()
target := mergeURLs(bu.url, u, dropSrcPathPrefixParts)
bu.put()
if target.String() != expectedTarget {
t.Fatalf("unexpected target; got %q; want %q", target, expectedTarget)
}
headersStr := fmt.Sprintf("%q", hc.RequestHeaders)
if headersStr != expectedRequestHeaders {
t.Fatalf("unexpected request headers; got %s; want %s", headersStr, expectedRequestHeaders)
}
if !reflect.DeepEqual(retryStatusCodes, expectedRetryStatusCodes) {
t.Fatalf("unexpected retryStatusCodes; got %d; want %d", retryStatusCodes, expectedRetryStatusCodes)
}
if dropSrcPathPrefixParts != expectedDropSrcPathPrefixParts {
t.Fatalf("unexpected dropSrcPathPrefixParts; got %d; want %d", dropSrcPathPrefixParts, expectedDropSrcPathPrefixParts)
}
}
// Simple routing with `url_prefix`
f(&UserInfo{
URLPrefix: mustParseURL("http://foo.bar"),
}, "", "http://foo.bar/.", "[]", "[]", nil, 0)
f(&UserInfo{
URLPrefix: mustParseURL("http://foo.bar"),
HeadersConf: HeadersConf{
RequestHeaders: []Header{{
Name: "bb",
Value: "aaa",
}},
},
RetryStatusCodes: []int{503, 501},
DropSrcPathPrefixParts: 2,
}, "/a/b/c", "http://foo.bar/c", `[{"bb" "aaa"}]`, `[]`, []int{503, 501}, 2)
f(&UserInfo{
URLPrefix: mustParseURL("http://foo.bar/federate"),
}, "/", "http://foo.bar/federate", "[]", "[]", nil, 0)
f(&UserInfo{
URLPrefix: mustParseURL("http://foo.bar"),
}, "a/b?c=d", "http://foo.bar/a/b?c=d", "[]", "[]", nil, 0)
f(&UserInfo{
URLPrefix: mustParseURL("https://sss:3894/x/y"),
}, "/z", "https://sss:3894/x/y/z", "[]", "[]", nil, 0)
f(&UserInfo{
URLPrefix: mustParseURL("https://sss:3894/x/y"),
}, "/../../aaa", "https://sss:3894/x/y/aaa", "[]", "[]", nil, 0)
f(&UserInfo{
URLPrefix: mustParseURL("https://sss:3894/x/y"),
}, "/./asd/../../aaa?a=d&s=s/../d", "https://sss:3894/x/y/aaa?a=d&s=s%2F..%2Fd", "[]", "[]", nil, 0)
// Complex routing with `url_map`
ui := &UserInfo{
URLMaps: []URLMap{
{
SrcPaths: getSrcPaths([]string{"/vmsingle/api/v1/query"}),
URLPrefix: mustParseURL("http://vmselect/0/prometheus"),
HeadersConf: HeadersConf{
RequestHeaders: []Header{
{
Name: "xx",
Value: "aa",
},
{
Name: "yy",
Value: "asdf",
},
},
ResponseHeaders: []Header{
{
Name: "qwe",
Value: "rty",
},
},
},
RetryStatusCodes: []int{503, 500, 501},
DropSrcPathPrefixParts: 1,
},
{
SrcPaths: getSrcPaths([]string{"/api/v1/write"}),
URLPrefix: mustParseURL("http://vminsert/0/prometheus"),
},
},
URLPrefix: mustParseURL("http://default-server"),
HeadersConf: HeadersConf{
RequestHeaders: []Header{{
Name: "bb",
Value: "aaa",
}},
ResponseHeaders: []Header{{
Name: "x",
Value: "y",
}},
},
RetryStatusCodes: []int{502},
DropSrcPathPrefixParts: 2,
}
f(ui, "/vmsingle/api/v1/query?query=up", "http://vmselect/0/prometheus/api/v1/query?query=up", `[{"xx" "aa"} {"yy" "asdf"}]`, `[{"qwe" "rty"}]`, []int{503, 500, 501}, 1)
f(ui, "/api/v1/write", "http://vminsert/0/prometheus/api/v1/write", "[]", "[]", nil, 0)
f(ui, "/foo/bar/api/v1/query_range", "http://default-server/api/v1/query_range", `[{"bb" "aaa"}]`, `[{"x" "y"}]`, []int{502}, 2)
// Complex routing regexp paths in `url_map`
ui = &UserInfo{
URLMaps: []URLMap{
{
SrcPaths: getSrcPaths([]string{"/api/v1/query(_range)?", "/api/v1/label/[^/]+/values"}),
URLPrefix: mustParseURL("http://vmselect/0/prometheus"),
},
{
SrcPaths: getSrcPaths([]string{"/api/v1/write"}),
URLPrefix: mustParseURL("http://vminsert/0/prometheus"),
},
},
URLPrefix: mustParseURL("http://default-server"),
}
f(ui, "/api/v1/query?query=up", "http://vmselect/0/prometheus/api/v1/query?query=up", "[]", "[]", nil, 0)
f(ui, "/api/v1/query_range?query=up", "http://vmselect/0/prometheus/api/v1/query_range?query=up", "[]", "[]", nil, 0)
f(ui, "/api/v1/label/foo/values", "http://vmselect/0/prometheus/api/v1/label/foo/values", "[]", "[]", nil, 0)
f(ui, "/api/v1/write", "http://vminsert/0/prometheus/api/v1/write", "[]", "[]", nil, 0)
f(ui, "/api/v1/foo/bar", "http://default-server/api/v1/foo/bar", "[]", "[]", nil, 0)
f(&UserInfo{
URLPrefix: mustParseURL("http://foo.bar?extra_label=team=dev"),
}, "/api/v1/query", "http://foo.bar/api/v1/query?extra_label=team=dev", "[]", "[]", nil, 0)
f(&UserInfo{
URLPrefix: mustParseURL("http://foo.bar?extra_label=team=mobile"),
}, "/api/v1/query?extra_label=team=dev", "http://foo.bar/api/v1/query?extra_label=team%3Dmobile", "[]", "[]", nil, 0)
}
func TestCreateTargetURLFailure(t *testing.T) {
f := func(ui *UserInfo, requestURI string) {
t.Helper()
u, err := url.Parse(requestURI)
if err != nil {
t.Fatalf("cannot parse %q: %s", requestURI, err)
}
u = normalizeURL(u)
up, hc, retryStatusCodes, dropSrcPathPrefixParts := ui.getURLPrefixAndHeaders(u)
if up != nil {
t.Fatalf("unexpected non-empty up=%#v", up)
}
if hc.RequestHeaders != nil {
t.Fatalf("unexpected non-empty request headers=%q", hc.RequestHeaders)
}
if hc.ResponseHeaders != nil {
t.Fatalf("unexpected non-empty response headers=%q", hc.ResponseHeaders)
}
if retryStatusCodes != nil {
t.Fatalf("unexpected non-empty retryStatusCodes=%d", retryStatusCodes)
}
if dropSrcPathPrefixParts != 0 {
t.Fatalf("unexpected non-zero dropSrcPathPrefixParts=%d", dropSrcPathPrefixParts)
}
}
f(&UserInfo{}, "/foo/bar")
f(&UserInfo{
URLMaps: []URLMap{
{
SrcPaths: getSrcPaths([]string{"/api/v1/query"}),
URLPrefix: mustParseURL("http://foobar/baz"),
},
},
}, "/api/v1/write")
}