caddy/modules/caddyhttp/matchers_test.go

1193 lines
28 KiB
Go

// Copyright 2015 Matthew Holt and The Caddy Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package caddyhttp
import (
"context"
"fmt"
"net/http"
"net/http/httptest"
"net/url"
"os"
"runtime"
"testing"
"github.com/caddyserver/caddy/v2"
)
func TestHostMatcher(t *testing.T) {
err := os.Setenv("GO_BENCHMARK_DOMAIN", "localhost")
if err != nil {
t.Errorf("error while setting up environment: %v", err)
}
for i, tc := range []struct {
match MatchHost
input string
expect bool
}{
{
match: MatchHost{},
input: "example.com",
expect: false,
},
{
match: MatchHost{"example.com"},
input: "example.com",
expect: true,
},
{
match: MatchHost{"EXAMPLE.COM"},
input: "example.com",
expect: true,
},
{
match: MatchHost{"example.com"},
input: "EXAMPLE.COM",
expect: true,
},
{
match: MatchHost{"example.com"},
input: "foo.example.com",
expect: false,
},
{
match: MatchHost{"example.com"},
input: "EXAMPLE.COM",
expect: true,
},
{
match: MatchHost{"foo.example.com"},
input: "foo.example.com",
expect: true,
},
{
match: MatchHost{"foo.example.com"},
input: "bar.example.com",
expect: false,
},
{
match: MatchHost{"éxàmplê.com"},
input: "xn--xmpl-0na6cm.com",
expect: true,
},
{
match: MatchHost{"*.example.com"},
input: "example.com",
expect: false,
},
{
match: MatchHost{"*.example.com"},
input: "SUB.EXAMPLE.COM",
expect: true,
},
{
match: MatchHost{"*.example.com"},
input: "foo.example.com",
expect: true,
},
{
match: MatchHost{"*.example.com"},
input: "foo.bar.example.com",
expect: false,
},
{
match: MatchHost{"*.example.com", "example.net"},
input: "example.net",
expect: true,
},
{
match: MatchHost{"example.net", "*.example.com"},
input: "foo.example.com",
expect: true,
},
{
match: MatchHost{"*.example.net", "*.*.example.com"},
input: "foo.bar.example.com",
expect: true,
},
{
match: MatchHost{"*.example.net", "sub.*.example.com"},
input: "sub.foo.example.com",
expect: true,
},
{
match: MatchHost{"*.example.net", "sub.*.example.com"},
input: "sub.foo.example.net",
expect: false,
},
{
match: MatchHost{"www.*.*"},
input: "www.example.com",
expect: true,
},
{
match: MatchHost{"example.com"},
input: "example.com:5555",
expect: true,
},
{
match: MatchHost{"{env.GO_BENCHMARK_DOMAIN}"},
input: "localhost",
expect: true,
},
{
match: MatchHost{"{env.GO_NONEXISTENT}"},
input: "localhost",
expect: false,
},
} {
req := &http.Request{Host: tc.input}
repl := caddy.NewReplacer()
ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
req = req.WithContext(ctx)
if err := tc.match.Provision(caddy.Context{}); err != nil {
t.Errorf("Test %d %v: provisioning failed: %v", i, tc.match, err)
}
actual := tc.match.Match(req)
if actual != tc.expect {
t.Errorf("Test %d %v: Expected %t, got %t for '%s'", i, tc.match, tc.expect, actual, tc.input)
continue
}
}
}
func TestPathMatcher(t *testing.T) {
for i, tc := range []struct {
match MatchPath // not URI-encoded because not parsing from a URI
input string // should be valid URI encoding (escaped) since it will become part of a request
expect bool
provisionErr bool
}{
{
match: MatchPath{},
input: "/",
expect: false,
},
{
match: MatchPath{"/"},
input: "/",
expect: true,
},
{
match: MatchPath{"/foo/bar"},
input: "/",
expect: false,
},
{
match: MatchPath{"/foo/bar"},
input: "/foo/bar",
expect: true,
},
{
match: MatchPath{"/foo/bar/"},
input: "/foo/bar",
expect: false,
},
{
match: MatchPath{"/foo/bar/"},
input: "/foo/bar/",
expect: true,
},
{
match: MatchPath{"/foo/bar/", "/other"},
input: "/other/",
expect: false,
},
{
match: MatchPath{"/foo/bar/", "/other"},
input: "/other",
expect: true,
},
{
match: MatchPath{"*.ext"},
input: "/foo/bar.ext",
expect: true,
},
{
match: MatchPath{"*.php"},
input: "/index.PHP",
expect: true,
},
{
match: MatchPath{"*.ext"},
input: "/foo/bar.ext",
expect: true,
},
{
match: MatchPath{"/foo/*/baz"},
input: "/foo/bar/baz",
expect: true,
},
{
match: MatchPath{"/foo/*/baz/bam"},
input: "/foo/bar/bam",
expect: false,
},
{
match: MatchPath{"*substring*"},
input: "/foo/substring/bar.txt",
expect: true,
},
{
match: MatchPath{"/foo"},
input: "/foo/bar",
expect: false,
},
{
match: MatchPath{"/foo"},
input: "/foo/bar",
expect: false,
},
{
match: MatchPath{"/foo"},
input: "/FOO",
expect: true,
},
{
match: MatchPath{"/foo*"},
input: "/FOOOO",
expect: true,
},
{
match: MatchPath{"/foo/bar.txt"},
input: "/foo/BAR.txt",
expect: true,
},
{
match: MatchPath{"/foo*"},
input: "//foo/bar",
expect: true,
},
{
match: MatchPath{"/foo"},
input: "//foo",
expect: true,
},
{
match: MatchPath{"//foo"},
input: "/foo",
expect: false,
},
{
match: MatchPath{"//foo"},
input: "//foo",
expect: true,
},
{
match: MatchPath{"/foo//*"},
input: "/foo//bar",
expect: true,
},
{
match: MatchPath{"/foo//*"},
input: "/foo/%2Fbar",
expect: true,
},
{
match: MatchPath{"/foo/%2F*"},
input: "/foo/%2Fbar",
expect: true,
},
{
match: MatchPath{"/foo/%2F*"},
input: "/foo//bar",
expect: false,
},
{
match: MatchPath{"/foo//bar"},
input: "/foo//bar",
expect: true,
},
{
match: MatchPath{"/foo/*//bar"},
input: "/foo///bar",
expect: true,
},
{
match: MatchPath{"/foo/%*//bar"},
input: "/foo///bar",
expect: true,
},
{
match: MatchPath{"/foo/%*//bar"},
input: "/foo//%2Fbar",
expect: true,
},
{
match: MatchPath{"/foo*"},
input: "/%2F/foo",
expect: true,
},
{
match: MatchPath{"*"},
input: "/",
expect: true,
},
{
match: MatchPath{"*"},
input: "/foo/bar",
expect: true,
},
{
match: MatchPath{"**"},
input: "/",
expect: true,
},
{
match: MatchPath{"**"},
input: "/foo/bar",
expect: true,
},
// notice these next three test cases are the same normalized path but are written differently
{
match: MatchPath{"/%25@.txt"},
input: "/%25@.txt",
expect: true,
},
{
match: MatchPath{"/%25@.txt"},
input: "/%25%40.txt",
expect: true,
},
{
match: MatchPath{"/%25%40.txt"},
input: "/%25%40.txt",
expect: true,
},
{
match: MatchPath{"/bands/*/*"},
input: "/bands/AC%2FDC/T.N.T",
expect: false, // because * operates in normalized space
},
{
match: MatchPath{"/bands/%*/%*"},
input: "/bands/AC%2FDC/T.N.T",
expect: true,
},
{
match: MatchPath{"/bands/%*/%*"},
input: "/bands/AC/DC/T.N.T",
expect: false,
},
{
match: MatchPath{"/bands/%*"},
input: "/bands/AC/DC",
expect: false, // not a suffix match
},
{
match: MatchPath{"/bands/%*"},
input: "/bands/AC%2FDC",
expect: true,
},
{
match: MatchPath{"/foo%2fbar/baz"},
input: "/foo%2Fbar/baz",
expect: true,
},
{
match: MatchPath{"/foo%2fbar/baz"},
input: "/foo/bar/baz",
expect: false,
},
{
match: MatchPath{"/foo/bar/baz"},
input: "/foo%2fbar/baz",
expect: true,
},
} {
err := tc.match.Provision(caddy.Context{})
if err == nil && tc.provisionErr {
t.Errorf("Test %d %v: Expected error provisioning, but there was no error", i, tc.match)
}
if err != nil && !tc.provisionErr {
t.Errorf("Test %d %v: Expected no error provisioning, but there was an error: %v", i, tc.match, err)
}
if tc.provisionErr {
continue // if it's not supposed to provision properly, pointless to test it
}
u, err := url.ParseRequestURI(tc.input)
if err != nil {
t.Fatalf("Test %d (%v): Invalid request URI (should be rejected by Go's HTTP server): %v", i, tc.input, err)
}
req := &http.Request{URL: u}
repl := caddy.NewReplacer()
ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
req = req.WithContext(ctx)
actual := tc.match.Match(req)
if actual != tc.expect {
t.Errorf("Test %d %v: Expected %t, got %t for '%s'", i, tc.match, tc.expect, actual, tc.input)
continue
}
}
}
func TestPathMatcherWindows(t *testing.T) {
// only Windows has this bug where it will ignore
// trailing dots and spaces in a filename
if runtime.GOOS != "windows" {
return
}
req := &http.Request{URL: &url.URL{Path: "/index.php . . .."}}
repl := caddy.NewReplacer()
ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
req = req.WithContext(ctx)
match := MatchPath{"*.php"}
matched := match.Match(req)
if !matched {
t.Errorf("Expected to match; should ignore trailing dots and spaces")
}
}
func TestPathREMatcher(t *testing.T) {
for i, tc := range []struct {
match MatchPathRE
input string
expect bool
expectRepl map[string]string
}{
{
match: MatchPathRE{},
input: "/",
expect: true,
},
{
match: MatchPathRE{MatchRegexp{Pattern: "/"}},
input: "/",
expect: true,
},
{
match: MatchPathRE{MatchRegexp{Pattern: "^/foo"}},
input: "/foo",
expect: true,
},
{
match: MatchPathRE{MatchRegexp{Pattern: "^/foo"}},
input: "/foo/",
expect: true,
},
{
match: MatchPathRE{MatchRegexp{Pattern: "^/foo"}},
input: "//foo",
expect: true,
},
{
match: MatchPathRE{MatchRegexp{Pattern: "^/foo"}},
input: "//foo/",
expect: true,
},
{
match: MatchPathRE{MatchRegexp{Pattern: "^/foo"}},
input: "/%2F/foo/",
expect: true,
},
{
match: MatchPathRE{MatchRegexp{Pattern: "/bar"}},
input: "/foo/",
expect: false,
},
{
match: MatchPathRE{MatchRegexp{Pattern: "^/bar"}},
input: "/foo/bar",
expect: false,
},
{
match: MatchPathRE{MatchRegexp{Pattern: "^/foo/(.*)/baz$", Name: "name"}},
input: "/foo/bar/baz",
expect: true,
expectRepl: map[string]string{"name.1": "bar"},
},
{
match: MatchPathRE{MatchRegexp{Pattern: "^/foo/(?P<myparam>.*)/baz$", Name: "name"}},
input: "/foo/bar/baz",
expect: true,
expectRepl: map[string]string{"name.myparam": "bar"},
},
{
match: MatchPathRE{MatchRegexp{Pattern: "^/%@.txt"}},
input: "/%25@.txt",
expect: true,
},
{
match: MatchPathRE{MatchRegexp{Pattern: "^/%25@.txt"}},
input: "/%25@.txt",
expect: false,
},
} {
// compile the regexp and validate its name
err := tc.match.Provision(caddy.Context{})
if err != nil {
t.Errorf("Test %d %v: Provisioning: %v", i, tc.match, err)
continue
}
err = tc.match.Validate()
if err != nil {
t.Errorf("Test %d %v: Validating: %v", i, tc.match, err)
continue
}
// set up the fake request and its Replacer
u, err := url.ParseRequestURI(tc.input)
if err != nil {
t.Fatalf("Test %d: Bad input URI: %v", i, err)
}
req := &http.Request{URL: u}
repl := caddy.NewReplacer()
ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
req = req.WithContext(ctx)
addHTTPVarsToReplacer(repl, req, httptest.NewRecorder())
actual := tc.match.Match(req)
if actual != tc.expect {
t.Errorf("Test %d [%v]: Expected %t, got %t for input '%s'",
i, tc.match.Pattern, tc.expect, actual, tc.input)
continue
}
for key, expectVal := range tc.expectRepl {
placeholder := fmt.Sprintf("{http.regexp.%s}", key)
actualVal := repl.ReplaceAll(placeholder, "<empty>")
if actualVal != expectVal {
t.Errorf("Test %d [%v]: Expected placeholder {http.regexp.%s} to be '%s' but got '%s'",
i, tc.match.Pattern, key, expectVal, actualVal)
continue
}
}
}
}
func TestHeaderMatcher(t *testing.T) {
repl := caddy.NewReplacer()
repl.Set("a", "foobar")
for i, tc := range []struct {
match MatchHeader
input http.Header // make sure these are canonical cased (std lib will do that in a real request)
host string
expect bool
}{
{
match: MatchHeader{"Field": []string{"foo"}},
input: http.Header{"Field": []string{"foo"}},
expect: true,
},
{
match: MatchHeader{"Field": []string{"foo", "bar"}},
input: http.Header{"Field": []string{"bar"}},
expect: true,
},
{
match: MatchHeader{"Field": []string{"foo", "bar"}},
input: http.Header{"Alakazam": []string{"kapow"}},
expect: false,
},
{
match: MatchHeader{"Field": []string{"foo", "bar"}},
input: http.Header{"Field": []string{"kapow"}},
expect: false,
},
{
match: MatchHeader{"Field": []string{"foo", "bar"}},
input: http.Header{"Field": []string{"kapow", "foo"}},
expect: true,
},
{
match: MatchHeader{"Field1": []string{"foo"}, "Field2": []string{"bar"}},
input: http.Header{"Field1": []string{"foo"}, "Field2": []string{"bar"}},
expect: true,
},
{
match: MatchHeader{"field1": []string{"foo"}, "field2": []string{"bar"}},
input: http.Header{"Field1": []string{"foo"}, "Field2": []string{"bar"}},
expect: true,
},
{
match: MatchHeader{"field1": []string{"foo"}, "field2": []string{"bar"}},
input: http.Header{"Field1": []string{"foo"}, "Field2": []string{"kapow"}},
expect: false,
},
{
match: MatchHeader{"field1": []string{"*"}},
input: http.Header{"Field1": []string{"foo"}},
expect: true,
},
{
match: MatchHeader{"field1": []string{"*"}},
input: http.Header{"Field2": []string{"foo"}},
expect: false,
},
{
match: MatchHeader{"Field1": []string{"foo*"}},
input: http.Header{"Field1": []string{"foo"}},
expect: true,
},
{
match: MatchHeader{"Field1": []string{"foo*"}},
input: http.Header{"Field1": []string{"asdf", "foobar"}},
expect: true,
},
{
match: MatchHeader{"Field1": []string{"*bar"}},
input: http.Header{"Field1": []string{"asdf", "foobar"}},
expect: true,
},
{
match: MatchHeader{"host": []string{"localhost"}},
input: http.Header{},
host: "localhost",
expect: true,
},
{
match: MatchHeader{"host": []string{"localhost"}},
input: http.Header{},
host: "caddyserver.com",
expect: false,
},
{
match: MatchHeader{"Must-Not-Exist": nil},
input: http.Header{},
expect: true,
},
{
match: MatchHeader{"Must-Not-Exist": nil},
input: http.Header{"Must-Not-Exist": []string{"do not match"}},
expect: false,
},
{
match: MatchHeader{"Foo": []string{"{a}"}},
input: http.Header{"Foo": []string{"foobar"}},
expect: true,
},
{
match: MatchHeader{"Foo": []string{"{a}"}},
input: http.Header{"Foo": []string{"asdf"}},
expect: false,
},
{
match: MatchHeader{"Foo": []string{"{a}*"}},
input: http.Header{"Foo": []string{"foobar-baz"}},
expect: true,
},
} {
req := &http.Request{Header: tc.input, Host: tc.host}
ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
req = req.WithContext(ctx)
actual := tc.match.Match(req)
if actual != tc.expect {
t.Errorf("Test %d %v: Expected %t, got %t for '%s'", i, tc.match, tc.expect, actual, tc.input)
continue
}
}
}
func TestQueryMatcher(t *testing.T) {
for i, tc := range []struct {
scenario string
match MatchQuery
input string
expect bool
}{
{
scenario: "non match against a specific value",
match: MatchQuery{"debug": []string{"1"}},
input: "/",
expect: false,
},
{
scenario: "match against a specific value",
match: MatchQuery{"debug": []string{"1"}},
input: "/?debug=1",
expect: true,
},
{
scenario: "match against a wildcard",
match: MatchQuery{"debug": []string{"*"}},
input: "/?debug=something",
expect: true,
},
{
scenario: "non match against a wildcarded",
match: MatchQuery{"debug": []string{"*"}},
input: "/?other=something",
expect: false,
},
{
scenario: "match against an empty value",
match: MatchQuery{"debug": []string{""}},
input: "/?debug",
expect: true,
},
{
scenario: "non match against an empty value",
match: MatchQuery{"debug": []string{""}},
input: "/?someparam",
expect: false,
},
{
scenario: "empty matcher value should match empty query",
match: MatchQuery{},
input: "/?",
expect: true,
},
{
scenario: "nil matcher value should NOT match a non-empty query",
match: MatchQuery{},
input: "/?foo=bar",
expect: false,
},
{
scenario: "non-nil matcher should NOT match an empty query",
match: MatchQuery{"": nil},
input: "/?",
expect: false,
},
{
scenario: "match against a placeholder value",
match: MatchQuery{"debug": []string{"{http.vars.debug}"}},
input: "/?debug=1",
expect: true,
},
{
scenario: "match against a placeholder key",
match: MatchQuery{"{http.vars.key}": []string{"1"}},
input: "/?somekey=1",
expect: true,
},
{
scenario: "do not match when not all query params are present",
match: MatchQuery{"debug": []string{"1"}, "foo": []string{"bar"}},
input: "/?debug=1",
expect: false,
},
{
scenario: "match when all query params are present",
match: MatchQuery{"debug": []string{"1"}, "foo": []string{"bar"}},
input: "/?debug=1&foo=bar",
expect: true,
},
{
scenario: "do not match when the value of a query param does not match",
match: MatchQuery{"debug": []string{"1"}, "foo": []string{"bar"}},
input: "/?debug=2&foo=bar",
expect: false,
},
{
scenario: "do not match when all the values the query params do not match",
match: MatchQuery{"debug": []string{"1"}, "foo": []string{"bar"}},
input: "/?debug=2&foo=baz",
expect: false,
},
{
scenario: "match against two values for the same key",
match: MatchQuery{"debug": []string{"1"}},
input: "/?debug=1&debug=2",
expect: true,
},
{
scenario: "match against two values for the same key",
match: MatchQuery{"debug": []string{"2", "1"}},
input: "/?debug=2&debug=1",
expect: true,
},
} {
u, _ := url.Parse(tc.input)
req := &http.Request{URL: u}
repl := caddy.NewReplacer()
ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
repl.Set("http.vars.debug", "1")
repl.Set("http.vars.key", "somekey")
req = req.WithContext(ctx)
actual := tc.match.Match(req)
if actual != tc.expect {
t.Errorf("Test %d %v: Expected %t, got %t for '%s'", i, tc.match, tc.expect, actual, tc.input)
continue
}
}
}
func TestHeaderREMatcher(t *testing.T) {
for i, tc := range []struct {
match MatchHeaderRE
input http.Header // make sure these are canonical cased (std lib will do that in a real request)
host string
expect bool
expectRepl map[string]string
}{
{
match: MatchHeaderRE{"Field": &MatchRegexp{Pattern: "foo"}},
input: http.Header{"Field": []string{"foo"}},
expect: true,
},
{
match: MatchHeaderRE{"Field": &MatchRegexp{Pattern: "$foo^"}},
input: http.Header{"Field": []string{"foobar"}},
expect: false,
},
{
match: MatchHeaderRE{"Field": &MatchRegexp{Pattern: "^foo(.*)$", Name: "name"}},
input: http.Header{"Field": []string{"foobar"}},
expect: true,
expectRepl: map[string]string{"name.1": "bar"},
},
{
match: MatchHeaderRE{"Field": &MatchRegexp{Pattern: "^foo.*$", Name: "name"}},
input: http.Header{"Field": []string{"barfoo", "foobar"}},
expect: true,
},
{
match: MatchHeaderRE{"host": &MatchRegexp{Pattern: "^localhost$", Name: "name"}},
input: http.Header{},
host: "localhost",
expect: true,
},
{
match: MatchHeaderRE{"host": &MatchRegexp{Pattern: "^local$", Name: "name"}},
input: http.Header{},
host: "localhost",
expect: false,
},
} {
// compile the regexp and validate its name
err := tc.match.Provision(caddy.Context{})
if err != nil {
t.Errorf("Test %d %v: Provisioning: %v", i, tc.match, err)
continue
}
err = tc.match.Validate()
if err != nil {
t.Errorf("Test %d %v: Validating: %v", i, tc.match, err)
continue
}
// set up the fake request and its Replacer
req := &http.Request{Header: tc.input, URL: new(url.URL), Host: tc.host}
repl := caddy.NewReplacer()
ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
req = req.WithContext(ctx)
addHTTPVarsToReplacer(repl, req, httptest.NewRecorder())
actual := tc.match.Match(req)
if actual != tc.expect {
t.Errorf("Test %d [%v]: Expected %t, got %t for input '%s'",
i, tc.match, tc.expect, actual, tc.input)
continue
}
for key, expectVal := range tc.expectRepl {
placeholder := fmt.Sprintf("{http.regexp.%s}", key)
actualVal := repl.ReplaceAll(placeholder, "<empty>")
if actualVal != expectVal {
t.Errorf("Test %d [%v]: Expected placeholder {http.regexp.%s} to be '%s' but got '%s'",
i, tc.match, key, expectVal, actualVal)
continue
}
}
}
}
func BenchmarkHeaderREMatcher(b *testing.B) {
i := 0
match := MatchHeaderRE{"Field": &MatchRegexp{Pattern: "^foo(.*)$", Name: "name"}}
input := http.Header{"Field": []string{"foobar"}}
var host string
err := match.Provision(caddy.Context{})
if err != nil {
b.Errorf("Test %d %v: Provisioning: %v", i, match, err)
}
err = match.Validate()
if err != nil {
b.Errorf("Test %d %v: Validating: %v", i, match, err)
}
// set up the fake request and its Replacer
req := &http.Request{Header: input, URL: new(url.URL), Host: host}
repl := caddy.NewReplacer()
ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
req = req.WithContext(ctx)
addHTTPVarsToReplacer(repl, req, httptest.NewRecorder())
for run := 0; run < b.N; run++ {
match.Match(req)
}
}
func TestVarREMatcher(t *testing.T) {
for i, tc := range []struct {
desc string
match MatchVarsRE
input VarsMiddleware
expect bool
expectRepl map[string]string
}{
{
desc: "match static value within var set by the VarsMiddleware succeeds",
match: MatchVarsRE{"Var1": &MatchRegexp{Pattern: "foo"}},
input: VarsMiddleware{"Var1": "here is foo val"},
expect: true,
},
{
desc: "value set by VarsMiddleware not satisfying regexp matcher fails to match",
match: MatchVarsRE{"Var1": &MatchRegexp{Pattern: "$foo^"}},
input: VarsMiddleware{"Var1": "foobar"},
expect: false,
},
{
desc: "successfully matched value is captured and its placeholder is added to replacer",
match: MatchVarsRE{"Var1": &MatchRegexp{Pattern: "^foo(.*)$", Name: "name"}},
input: VarsMiddleware{"Var1": "foobar"},
expect: true,
expectRepl: map[string]string{"name.1": "bar"},
},
{
desc: "matching against a value of standard variables succeeds",
match: MatchVarsRE{"{http.request.method}": &MatchRegexp{Pattern: "^G.[tT]$"}},
input: VarsMiddleware{},
expect: true,
},
{
desc: "matching against value of var set by the VarsMiddleware and referenced by its placeholder succeeds",
match: MatchVarsRE{"{http.vars.Var1}": &MatchRegexp{Pattern: "[vV]ar[0-9]"}},
input: VarsMiddleware{"Var1": "var1Value"},
expect: true,
},
} {
i := i // capture range value
tc := tc // capture range value
t.Run(tc.desc, func(t *testing.T) {
t.Parallel()
// compile the regexp and validate its name
err := tc.match.Provision(caddy.Context{})
if err != nil {
t.Errorf("Test %d %v: Provisioning: %v", i, tc.match, err)
return
}
err = tc.match.Validate()
if err != nil {
t.Errorf("Test %d %v: Validating: %v", i, tc.match, err)
return
}
// set up the fake request and its Replacer
req := &http.Request{URL: new(url.URL), Method: http.MethodGet}
repl := caddy.NewReplacer()
ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
ctx = context.WithValue(ctx, VarsCtxKey, make(map[string]any))
req = req.WithContext(ctx)
addHTTPVarsToReplacer(repl, req, httptest.NewRecorder())
tc.input.ServeHTTP(httptest.NewRecorder(), req, emptyHandler)
actual := tc.match.Match(req)
if actual != tc.expect {
t.Errorf("Test %d [%v]: Expected %t, got %t for input '%s'",
i, tc.match, tc.expect, actual, tc.input)
return
}
for key, expectVal := range tc.expectRepl {
placeholder := fmt.Sprintf("{http.regexp.%s}", key)
actualVal := repl.ReplaceAll(placeholder, "<empty>")
if actualVal != expectVal {
t.Errorf("Test %d [%v]: Expected placeholder {http.regexp.%s} to be '%s' but got '%s'",
i, tc.match, key, expectVal, actualVal)
return
}
}
})
}
}
func TestNotMatcher(t *testing.T) {
for i, tc := range []struct {
host, path string
match MatchNot
expect bool
}{
{
host: "example.com", path: "/",
match: MatchNot{},
expect: true,
},
{
host: "example.com", path: "/foo",
match: MatchNot{
MatcherSets: []MatcherSet{
{
MatchPath{"/foo"},
},
},
},
expect: false,
},
{
host: "example.com", path: "/bar",
match: MatchNot{
MatcherSets: []MatcherSet{
{
MatchPath{"/foo"},
},
},
},
expect: true,
},
{
host: "example.com", path: "/bar",
match: MatchNot{
MatcherSets: []MatcherSet{
{
MatchPath{"/foo"},
},
{
MatchHost{"example.com"},
},
},
},
expect: false,
},
{
host: "example.com", path: "/bar",
match: MatchNot{
MatcherSets: []MatcherSet{
{
MatchPath{"/bar"},
},
{
MatchHost{"example.com"},
},
},
},
expect: false,
},
{
host: "example.com", path: "/foo",
match: MatchNot{
MatcherSets: []MatcherSet{
{
MatchPath{"/bar"},
},
{
MatchHost{"sub.example.com"},
},
},
},
expect: true,
},
{
host: "example.com", path: "/foo",
match: MatchNot{
MatcherSets: []MatcherSet{
{
MatchPath{"/foo"},
MatchHost{"example.com"},
},
},
},
expect: false,
},
{
host: "example.com", path: "/foo",
match: MatchNot{
MatcherSets: []MatcherSet{
{
MatchPath{"/bar"},
MatchHost{"example.com"},
},
},
},
expect: true,
},
} {
req := &http.Request{Host: tc.host, URL: &url.URL{Path: tc.path}}
repl := caddy.NewReplacer()
ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
req = req.WithContext(ctx)
actual := tc.match.Match(req)
if actual != tc.expect {
t.Errorf("Test %d %+v: Expected %t, got %t for: host=%s path=%s'", i, tc.match, tc.expect, actual, tc.host, tc.path)
continue
}
}
}
func BenchmarkLargeHostMatcher(b *testing.B) {
// this benchmark simulates a large host matcher (thousands of entries) where each
// value is an exact hostname (not a placeholder or wildcard) - compare the results
// of this with and without the binary search (comment out the various fast path
// sections in Match) to conduct experiments
const n = 10000
lastHost := fmt.Sprintf("%d.example.com", n-1)
req := &http.Request{Host: lastHost}
repl := caddy.NewReplacer()
ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
req = req.WithContext(ctx)
matcher := make(MatchHost, n)
for i := 0; i < n; i++ {
matcher[i] = fmt.Sprintf("%d.example.com", i)
}
err := matcher.Provision(caddy.Context{})
if err != nil {
b.Fatal(err)
}
b.ResetTimer()
for i := 0; i < b.N; i++ {
matcher.Match(req)
}
}
func BenchmarkHostMatcherWithoutPlaceholder(b *testing.B) {
req := &http.Request{Host: "localhost"}
repl := caddy.NewReplacer()
ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
req = req.WithContext(ctx)
match := MatchHost{"localhost"}
b.ResetTimer()
for i := 0; i < b.N; i++ {
match.Match(req)
}
}
func BenchmarkHostMatcherWithPlaceholder(b *testing.B) {
err := os.Setenv("GO_BENCHMARK_DOMAIN", "localhost")
if err != nil {
b.Errorf("error while setting up environment: %v", err)
}
req := &http.Request{Host: "localhost"}
repl := caddy.NewReplacer()
ctx := context.WithValue(req.Context(), caddy.ReplacerCtxKey, repl)
req = req.WithContext(ctx)
match := MatchHost{"{env.GO_BENCHMARK_DOMAIN}"}
b.ResetTimer()
for i := 0; i < b.N; i++ {
match.Match(req)
}
}