fix: update user-agent regex to use regexp2 and handle match errors

bin/sha1sum.txt

@@ -1,11 +1,11 @@
-63a160690ef8aaf5770c410ce8a421fd ./ua3f-0.5.0-386.tar.gz
-4cd727205aa52fd3606b42b60e9e0593 ./ua3f-0.5.0-amd64.tar.gz
-c4101e2605391754d52b38ceb8ceb1f5 ./ua3f-0.5.0-arm.tar.gz
-392aa3e532973dc0f2b4f87691dd5572 ./ua3f-0.5.0-arm64.tar.gz
-d5098bca9f040865d4076de2cc131e44 ./ua3f-0.5.0-armv7.tar.gz
-392aa3e532973dc0f2b4f87691dd5572 ./ua3f-0.5.0-armv8.tar.gz
-c0a6f242eff63595a8dc661de1e4390f ./ua3f-0.5.0-mips64.tar.gz
-a6f7c49f5437d601077856d15b9ba8e7 ./ua3f-0.5.0-mipsle-hardfloat.tar.gz
-6f966df9a8e5c74a81c3e75d1b06ad9d ./ua3f-0.5.0-mipsle-softfloat.tar.gz
-3f8974026e09b59d95ee21ed0a9db4b6 ./ua3f-0.5.0-mipsle.tar.gz
-c86d8d56781d9b5e94805ca76e232dda ./ua3f-0.5.0-riscv64.tar.gz
+40758678c03ace553b3c4d5690218c52 ./ua3f-0.5.1-386.tar.gz
+43b8ec1a2dd43c8e6d826b4f785fabc9 ./ua3f-0.5.1-amd64.tar.gz
+1ea04bd958de26947ddaf7f272fb5aff ./ua3f-0.5.1-arm.tar.gz
+5c87c290de8e40715bc8802d7c7f09d2 ./ua3f-0.5.1-arm64.tar.gz
+3fec71215b595a069c5e6c438178e355 ./ua3f-0.5.1-armv7.tar.gz
+5c87c290de8e40715bc8802d7c7f09d2 ./ua3f-0.5.1-armv8.tar.gz
+c2b0a620f66c6140b9c64667d6015709 ./ua3f-0.5.1-mips64.tar.gz
+d4e325e5d7ac0c64a8ef659d04ca3164 ./ua3f-0.5.1-mipsle-hardfloat.tar.gz
+df1295c649a05d2b32ecc18700ca8489 ./ua3f-0.5.1-mipsle-softfloat.tar.gz
+6528a2b69d3c67dc7606de15e293d06c ./ua3f-0.5.1-mipsle.tar.gz
+3b064e7e7f4a18ca0b4750d7988b8d11 ./ua3f-0.5.1-riscv64.tar.gz

build.sh

@@ -1,7 +1,7 @@
 #!/bin/sh
 
 project_name="ua3f"
-release_version="0.5.0"
+release_version="0.5.1"
 target=cmd/ua3f.go
 dist=./dist
 release_dir=./bin

cmd/ua3f.go

@@ -7,21 +7,21 @@ import (
 	"fmt"
 	"io"
 	"net"
-	"regexp"
 	"slices"
 	"strings"
 	"time"
 	"ua3f/http"
 	"ua3f/log"
 
+	"github.com/dlclark/regexp2"
 	"github.com/hashicorp/golang-lru/v2/expirable"
 	"github.com/sirupsen/logrus"
 )
 
-var version = "0.5.0"
+var version = "0.5.1"
 var payloadByte []byte
 var uaPattern string
-var uaRegexp *regexp.Regexp
+var uaRegexp *regexp2.Regexp
 var cache *expirable.LRU[string, string]
 var HTTP_METHOD = []string{"GET", "POST", "HEAD", "PUT", "DELETE", "OPTIONS", "TRACE", "CONNECT"}
 var whitelist = []string{
@@ -77,7 +77,7 @@ func main() {
 		return
 	}
 	logrus.Info(fmt.Sprintf("Listen on %s:%d", addr, port))
-	uaRegexp, err = regexp.Compile(uaPattern)
+	uaRegexp, err = regexp2.Compile(uaPattern, regexp2.None)
 	if err != nil {
 		logrus.Fatal("Invalid User-Agent Regex Pattern: ", err)
 		return
@@ -440,7 +440,11 @@ func CopyPileline(dst io.Writer, src io.Reader, destAddrPort string) {
 			isInWhiteList := false
 			isMatchUaPattern := true
 			if uaPattern != "" {
-				isMatchUaPattern = uaRegexp.MatchString(uaStr)
+				isMatchUaPattern, err = uaRegexp.MatchString(uaStr)
+				if err != nil {
+					logrus.Error(fmt.Sprintf("[%s][%s] User-Agent Regex Pattern Match Error: %s", destAddrPort, src.(*net.TCPConn).RemoteAddr().String(), err.Error()))
+					isMatchUaPattern = true
+				}
 			}
 			if slices.Contains(whitelist, uaStr) {
 				isInWhiteList = true

go.mod

@@ -8,6 +8,7 @@ require (
 )
 
 require (
+	github.com/dlclark/regexp2 v1.11.4 // indirect
 	github.com/stretchr/testify v1.8.2 // indirect
 	golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 // indirect
 )

go.sum

@@ -1,6 +1,8 @@
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/dlclark/regexp2 v1.11.4 h1:rPYF9/LECdNymJufQKmri9gV604RvvABwgOA8un7yAo=
+github.com/dlclark/regexp2 v1.11.4/go.mod h1:DHkYz0B9wPfa6wondMfaivmHpzrQ3v9q8cnmRbL6yW8=
 github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k=
 github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
@@ -9,7 +11,7 @@ github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ
 github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
-github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
+github.com/stretchr/objx v0.5.1/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=

install.sh

@@ -20,7 +20,7 @@ ckcmd() {
 cd /root
 getcpucore
 
-version=0.5.0
+version=0.5.1
 ua3f_tar=ua3f-$version-$cpucore.tar.gz
 
 if id -u shellclash >/dev/null 2>&1; then

luci/cbi.lua

@@ -3,7 +3,7 @@ local uci = require("luci.model.uci").cursor()
 ua3f = Map("ua3f",
     "UA3F",
     [[
-        <a href="https://github.com/SunBK201/UA3F" target="_blank">Version: 0.5.0</a>
+        <a href="https://github.com/SunBK201/UA3F" target="_blank">Version: 0.5.1</a>
         <br>
         Across the Campus we can reach every corner in the world.
     ]]

opkg/CONTROL/control

@@ -1,5 +1,5 @@
 Package: ua3f
-Version: 0.5.0-1
+Version: 0.5.1-1
 Depends: libc, luci-compat
 Source: /feed/openwrt
 SourceName: UA3F
@@ -7,5 +7,5 @@ License: GPL-3.0-only
 Section: net
 SourceDateEpoch: 1711267200
 Architecture: all
-Installed-Size:  2641920
+Installed-Size:  2775040
 Description: Implementation of the new generation of HTTP User-Agent modification methodology.

opkg/CONTROL/control-e

@@ -1,5 +1,5 @@
 Package: ua3f
-Version: 0.5.0-1
+Version: 0.5.1-1
 Depends: libc, luci-compat
 Source: /feed/openwrt
 SourceName: UA3F
@@ -7,5 +7,5 @@ License: GPL-3.0-only
 Section: net
 SourceDateEpoch: 1711267200
 Architecture: all
-Installed-Size:  2641920
+Installed-Size:  2703360
 Description: Implementation of the new generation of HTTP User-Agent modification methodology.

opkg/usr/lib/lua/luci/model/cbi/ua3f.lua

@@ -3,7 +3,7 @@ local uci = require("luci.model.uci").cursor()
 ua3f = Map("ua3f",
     "UA3F",
     [[
-        <a href="https://github.com/SunBK201/UA3F" target="_blank">Version: 0.5.0</a>
+        <a href="https://github.com/SunBK201/UA3F" target="_blank">Version: 0.5.1</a>
         <br>
         Across the Campus we can reach every corner in the world.
     ]]