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优化代码
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GoEdgeLab
263
internal/utils/re/regexp_test.go
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263
internal/utils/re/regexp_test.go
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// Copyright 2022 Liuxiangchao iwind.liu@gmail.com. All rights reserved.
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package re_test
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import (
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"github.com/TeaOSLab/EdgeCommon/pkg/serverconfigs/firewallconfigs"
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"github.com/TeaOSLab/EdgeNode/internal/utils/re"
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"github.com/iwind/TeaGo/assert"
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"regexp"
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"strings"
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"testing"
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)
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func TestRegexp(t *testing.T) {
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for _, s := range []string{"(?i)(abc|efg)", "abc|efg", "abc(.+)"} {
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var reg = regexp.MustCompile(s)
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t.Log("===" + s + "===")
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t.Log(reg.LiteralPrefix())
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t.Log(reg.NumSubexp())
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t.Log(reg.SubexpNames())
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}
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}
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func TestRegexp_MatchString(t *testing.T) {
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var a = assert.NewAssertion(t)
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{
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var r = re.MustCompile("abc")
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a.IsTrue(r.MatchString("abc"))
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a.IsFalse(r.MatchString("ab"))
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a.IsFalse(r.MatchString("ABC"))
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}
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{
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var r = re.MustCompile("(?i)abc|def|ghi")
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a.IsTrue(r.MatchString("DEF"))
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a.IsFalse(r.MatchString("ab"))
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a.IsTrue(r.MatchString("ABC"))
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}
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}
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func TestRegexp_Sub(t *testing.T) {
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{
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reg := regexp.MustCompile(`(a|b|c)(e|f|g)`)
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for _, subName := range reg.SubexpNames() {
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t.Log(subName)
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}
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}
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}
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func TestRegexp_ParseKeywords(t *testing.T) {
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var r = re.MustCompile("")
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{
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var keywords = r.ParseKeywords(`\n\t\n\f\r\v\x123`)
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t.Log(keywords)
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}
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}
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func TestRegexp_Special(t *testing.T) {
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for _, s := range []string{
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`\\s`,
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`\s\W`,
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`aaaa/\W`,
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`aaaa\/\W`,
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`aaaa\=\W`,
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`aaaa\\=\W`,
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`aaaa\\\=\W`,
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`aaaa\\\\=\W`,
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} {
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var es = testUnescape(t, s)
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t.Log(s, "=>", es)
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_, err := re.Compile(es)
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if err != nil {
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t.Fatal(err)
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}
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}
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}
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func TestRegexp_Special2(t *testing.T) {
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r, err := re.Compile(testUnescape(t, `/api/ios/a
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/api/ios/b
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/api/ios/c
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/report`))
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if err != nil {
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t.Fatal(err)
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}
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t.Log(r.Keywords())
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}
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func TestRegexp_ParseKeywords2(t *testing.T) {
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var a = assert.NewAssertion(t)
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var r = re.MustCompile("")
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a.IsTrue(testCompareStrings(r.ParseKeywords("(abc)def"), []string{"abcdef"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords("(abc)|(?:def)"), []string{"abc", "def"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords("(abc)"), []string{"abc"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords("(abc|def|ghi)"), []string{"abc", "def", "ghi"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords("(?i:abc)"), []string{}))
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a.IsTrue(testCompareStrings(r.ParseKeywords(`\babc`), []string{"abc"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords(` \babc`), []string{" "}))
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a.IsTrue(testCompareStrings(r.ParseKeywords(`\babc\b`), []string{"abc"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords(`\b(abc)`), []string{"abc"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords("abc"), []string{"abc"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords("abc|efg|hij"), []string{"abc", "efg", "hij"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords(`abc\|efg|hij`), []string{"abc|efg", "hij"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords(`abc\|efg*|hij`), []string{"abc|ef", "hij"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords(`abc\|efg?|hij`), []string{"abc|ef", "hij"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords(`abc\|efg+|hij`), []string{"abc|ef", "hij"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords(`abc\|efg{2,10}|hij`), []string{"abc|ef", "hij"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords(`abc\|efg{0,10}|hij`), []string{"abc|ef", "hij"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords(`abc\|efg.+|hij`), []string{"abc|efg", "hij"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords("A(abc|bcd)"), []string{"Aabc", "Abcd"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords("^abc"), []string{"abc"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords("abc$"), []string{"abc"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords(`abc$`), []string{"abc"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords("abc\\d"), []string{"abc"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords("abc{0,4}"), []string{"ab"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords("{0,4}"), []string{}))
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a.IsTrue(testCompareStrings(r.ParseKeywords("{1,4}"), []string{}))
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a.IsTrue(testCompareStrings(r.ParseKeywords("中文|北京|上海|golang"), []string{"中文", "北京", "上海", "golang"}))
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a.IsTrue(testCompareStrings(r.ParseKeywords(`(onmouseover|onmousemove|onmousedown|onmouseup|onerror|onload|onclick|ondblclick)\s*=`), strings.Split("onmouseover|onmousemove|onmousedown|onmouseup|onerror|onload|onclick|ondblclick", "|")))
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a.IsTrue(testCompareStrings(r.ParseKeywords(`/\*(!|\x00)`), []string{"/*"}))
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}
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func TestRegexp_ParseKeywords3(t *testing.T) {
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var r = re.MustCompile("")
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var policy = firewallconfigs.HTTPFirewallTemplate()
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for _, group := range policy.Inbound.Groups {
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for _, set := range group.Sets {
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for _, rule := range set.Rules {
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if rule.Operator == firewallconfigs.HTTPFirewallRuleOperatorMatch || rule.Operator == firewallconfigs.HTTPFirewallRuleOperatorNotMatch {
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t.Log(set.Name+":", rule.Value, "=>", r.ParseKeywords(rule.Value))
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}
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}
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}
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}
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}
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func BenchmarkRegexp_MatchString(b *testing.B) {
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var r = re.MustCompile("(?i)(onmouseover|onmousemove|onmousedown|onmouseup|onerror|onload|onclick|ondblclick|onkeydown|onkeyup|onkeypress)(\\s|%09|%0A|(\\+|%20))*(=|%3D)")
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b.ResetTimer()
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//b.Log("keywords:", r.Keywords())
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for i := 0; i < b.N; i++ {
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r.MatchString("Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36")
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}
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}
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func BenchmarkRegexp_MatchString2(b *testing.B) {
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var r = regexp.MustCompile(`(?i)(onmouseover|onmousemove|onmousedown|onmouseup|onerror|onload|onclick|ondblclick|onkeydown|onkeyup|onkeypress)(\s|%09|%0A|(\+|%20))*(=|%3D)`)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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r.MatchString("Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36")
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}
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}
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func BenchmarkRegexp_MatchString_CaseSensitive(b *testing.B) {
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var r = re.MustCompile("(abc|def|ghi)")
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b.Log("keywords:", r.Keywords())
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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r.MatchString("Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36")
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}
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}
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func BenchmarkRegexp_MatchString_CaseSensitive2(b *testing.B) {
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var r = regexp.MustCompile("(abc|def|ghi)")
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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r.MatchString("Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36")
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}
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}
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func BenchmarkRegexp_MatchString_VS_FindSubString1(b *testing.B) {
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var r = re.MustCompile("(?i)(chrome)")
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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_ = r.Raw().MatchString("Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36")
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}
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}
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func BenchmarkRegexp_MatchString_VS_FindSubString2(b *testing.B) {
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var r = re.MustCompile("(?i)(chrome)")
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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_ = r.Raw().FindStringSubmatch("Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.110 Safari/537.36")
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}
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}
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func TestSplitAndJoin(t *testing.T) {
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var pieces = strings.Split(`/api/ios/a
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/api/ios/b
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/api/ios/c
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/report`, "/")
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t.Log(strings.Join(pieces, `(/|%2F)`))
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}
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func testCompareStrings(s1 []string, s2 []string) bool {
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if len(s1) != len(s2) {
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return false
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}
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for index, s := range s1 {
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if s != s2[index] {
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return false
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}
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}
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return true
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}
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func testUnescape(t *testing.T, v string) string {
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// replace urlencoded characters
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var unescapeChars = [][2]string{
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{`\s`, `(\s|%09|%0A|\+)`},
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{`\(`, `(\(|%28)`},
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{`=`, `(=|%3D)`},
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{`<`, `(<|%3C)`},
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{`\*`, `(\*|%2A)`},
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{`\\`, `(\\|%2F)`},
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{`!`, `(!|%21)`},
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{`/`, `(/|%2F)`},
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{`;`, `(;|%3B)`},
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{`\+`, `(\+|%20)`},
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}
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for _, c := range unescapeChars {
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if !strings.Contains(v, c[0]) {
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continue
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}
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var pieces = strings.Split(v, c[0])
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// 修复piece中错误的\
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for pieceIndex, piece := range pieces {
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var l = len(piece)
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if l == 0 {
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continue
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}
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if piece[l-1] != '\\' {
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continue
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}
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// 计算\的数量
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var countBackSlashes = 0
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for i := l - 1; i >= 0; i-- {
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if piece[i] == '\\' {
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countBackSlashes++
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} else {
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break
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}
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}
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if countBackSlashes%2 == 1 {
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// 去掉最后一个
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pieces[pieceIndex] = piece[:len(piece)-1]
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}
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}
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v = strings.Join(pieces, c[1])
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}
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return v
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}
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