🎉: init project

internal/tool/ctx.go

@@ -0,0 +1,38 @@
+package tool
+
+import (
+	"context"
+	"time"
+)
+
+func Timeout(seconds ...int) (ctx context.Context) {
+	var (
+		duration time.Duration
+	)
+
+	if len(seconds) > 0 && seconds[0] > 0 {
+		duration = time.Duration(seconds[0]) * time.Second
+	} else {
+		duration = time.Duration(30) * time.Second
+	}
+
+	ctx, _ = context.WithTimeout(context.Background(), duration)
+
+	return
+}
+
+func TimeoutCtx(ctx context.Context, seconds ...int) context.Context {
+	var (
+		duration time.Duration
+	)
+
+	if len(seconds) > 0 && seconds[0] > 0 {
+		duration = time.Duration(seconds[0]) * time.Second
+	} else {
+		duration = time.Duration(30) * time.Second
+	}
+
+	nctx, _ := context.WithTimeout(ctx, duration)
+
+	return nctx
+}

internal/tool/human.go

@@ -0,0 +1,24 @@
+package tool
+
+import "fmt"
+
+func HumanDuration(nano int64) string {
+	duration := float64(nano)
+	unit := "ns"
+	if duration >= 1000 {
+		duration /= 1000
+		unit = "us"
+	}
+
+	if duration >= 1000 {
+		duration /= 1000
+		unit = "ms"
+	}
+
+	if duration >= 1000 {
+		duration /= 1000
+		unit = " s"
+	}
+
+	return fmt.Sprintf("%6.2f%s", duration, unit)
+}

internal/tool/must.go

@@ -0,0 +1,11 @@
+package tool
+
+import "github.com/loveuer/nf/nft/log"
+
+func Must(errs ...error) {
+	for _, err := range errs {
+		if err != nil {
+			log.Panic(err.Error())
+		}
+	}
+}

internal/tool/password.go

@@ -0,0 +1,84 @@
+package tool
+
+import (
+	"crypto/sha256"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"github.com/loveuer/nf/nft/log"
+	"golang.org/x/crypto/pbkdf2"
+	"regexp"
+	"strconv"
+	"strings"
+)
+
+const (
+	EncryptHeader string = "pbkdf2:sha256" // 用户密码加密
+)
+
+func NewPassword(password string) string {
+	return EncryptPassword(password, RandomString(8), int(RandomInt(50000)+100000))
+}
+
+func ComparePassword(in, db string) bool {
+	strs := strings.Split(db, "$")
+	if len(strs) != 3 {
+		log.Error("password in db invalid: %s", db)
+		return false
+	}
+
+	encs := strings.Split(strs[0], ":")
+	if len(encs) != 3 {
+		log.Error("password in db invalid: %s", db)
+		return false
+	}
+
+	encIteration, err := strconv.Atoi(encs[2])
+	if err != nil {
+		log.Error("password in db invalid: %s, convert iter err: %s", db, err)
+		return false
+	}
+
+	return EncryptPassword(in, strs[1], encIteration) == db
+}
+
+func EncryptPassword(password, salt string, iter int) string {
+	hash := pbkdf2.Key([]byte(password), []byte(salt), iter, 32, sha256.New)
+	encrypted := hex.EncodeToString(hash)
+	return fmt.Sprintf("%s:%d$%s$%s", EncryptHeader, iter, salt, encrypted)
+}
+
+func CheckPassword(password string) error {
+	if len(password) < 8 || len(password) > 32 {
+		return errors.New("密码长度不符合")
+	}
+
+	var (
+		err          error
+		match        bool
+		patternList  = []string{`[0-9]+`, `[a-z]+`, `[A-Z]+`, `[!@#%]+`} //, `[~!@#$%^&*?_-]+`}
+		matchAccount = 0
+		tips         = []string{"缺少数字", "缺少小写字母", "缺少大写字母", "缺少'!@#%'"}
+		locktips     = make([]string, 0)
+	)
+
+	for idx, pattern := range patternList {
+		match, err = regexp.MatchString(pattern, password)
+		if err != nil {
+			log.Warn("regex match string err, reg_str: %s, err: %v", pattern, err)
+			return errors.New("密码强度不够")
+		}
+
+		if match {
+			matchAccount++
+		} else {
+			locktips = append(locktips, tips[idx])
+		}
+	}
+
+	if matchAccount < 3 {
+		return fmt.Errorf("密码强度不够, 可能 %s", strings.Join(locktips, ", "))
+	}
+
+	return nil
+}

internal/tool/password_test.go

@@ -0,0 +1,11 @@
+package tool
+
+import "testing"
+
+func TestEncPassword(t *testing.T) {
+	password := "123456"
+
+	result := EncryptPassword(password, RandomString(8), 50000)
+
+	t.Logf("sum => %s", result)
+}

internal/tool/random.go

@@ -0,0 +1,54 @@
+package tool
+
+import (
+	"crypto/rand"
+	"math/big"
+)
+
+var (
+	letters   = []byte("0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
+	letterNum = []byte("0123456789")
+	letterLow = []byte("abcdefghijklmnopqrstuvwxyz")
+	letterCap = []byte("ABCDEFGHIJKLMNOPQRSTUVWXYZ")
+	letterSyb = []byte("!@#$%^&*()_+-=")
+)
+
+func RandomInt(max int64) int64 {
+	num, _ := rand.Int(rand.Reader, big.NewInt(max))
+	return num.Int64()
+}
+
+func RandomString(length int) string {
+	result := make([]byte, length)
+	for i := 0; i < length; i++ {
+		num, _ := rand.Int(rand.Reader, big.NewInt(int64(len(letters))))
+		result[i] = letters[num.Int64()]
+	}
+	return string(result)
+}
+
+func RandomPassword(length int, withSymbol bool) string {
+	result := make([]byte, length)
+	kind := 3
+	if withSymbol {
+		kind++
+	}
+
+	for i := 0; i < length; i++ {
+		switch i % kind {
+		case 0:
+			num, _ := rand.Int(rand.Reader, big.NewInt(int64(len(letterNum))))
+			result[i] = letterNum[num.Int64()]
+		case 1:
+			num, _ := rand.Int(rand.Reader, big.NewInt(int64(len(letterLow))))
+			result[i] = letterLow[num.Int64()]
+		case 2:
+			num, _ := rand.Int(rand.Reader, big.NewInt(int64(len(letterCap))))
+			result[i] = letterCap[num.Int64()]
+		case 3:
+			num, _ := rand.Int(rand.Reader, big.NewInt(int64(len(letterSyb))))
+			result[i] = letterSyb[num.Int64()]
+		}
+	}
+	return string(result)
+}

internal/tool/table.go

@@ -0,0 +1,117 @@
+package tool
+
+import (
+	"encoding/json"
+	"fmt"
+	"github.com/jedib0t/go-pretty/v6/table"
+	"github.com/loveuer/nf/nft/log"
+	"io"
+	"os"
+	"reflect"
+	"strings"
+)
+
+func TablePrinter(data any, writers ...io.Writer) {
+	var w io.Writer = os.Stdout
+	if len(writers) > 0 && writers[0] != nil {
+		w = writers[0]
+	}
+
+	t := table.NewWriter()
+	structPrinter(t, "", data)
+	_, _ = fmt.Fprintln(w, t.Render())
+}
+
+func structPrinter(w table.Writer, prefix string, item any) {
+Start:
+	rv := reflect.ValueOf(item)
+	if rv.IsZero() {
+		return
+	}
+
+	for rv.Type().Kind() == reflect.Pointer {
+		rv = rv.Elem()
+	}
+
+	switch rv.Type().Kind() {
+	case reflect.Invalid,
+		reflect.Uintptr,
+		reflect.Chan,
+		reflect.Func,
+		reflect.UnsafePointer:
+	case reflect.Bool,
+		reflect.Int,
+		reflect.Int8,
+		reflect.Int16,
+		reflect.Int32,
+		reflect.Int64,
+		reflect.Uint,
+		reflect.Uint8,
+		reflect.Uint16,
+		reflect.Uint32,
+		reflect.Uint64,
+		reflect.Float32,
+		reflect.Float64,
+		reflect.Complex64,
+		reflect.Complex128,
+		reflect.Interface,
+		reflect.String:
+		w.AppendRow(table.Row{strings.TrimPrefix(prefix, "."), rv.Interface()})
+	case reflect.Array, reflect.Slice:
+		for i := 0; i < rv.Len(); i++ {
+			p := strings.Join([]string{prefix, fmt.Sprintf("[%d]", i)}, ".")
+			structPrinter(w, p, rv.Index(i).Interface())
+		}
+	case reflect.Map:
+		for _, k := range rv.MapKeys() {
+			structPrinter(w, fmt.Sprintf("%s.{%v}", prefix, k), rv.MapIndex(k).Interface())
+		}
+	case reflect.Pointer:
+		goto Start
+	case reflect.Struct:
+		for i := 0; i < rv.NumField(); i++ {
+			p := fmt.Sprintf("%s.%s", prefix, rv.Type().Field(i).Name)
+			field := rv.Field(i)
+
+			//log.Debug("TablePrinter: prefix: %s, field: %v", p, rv.Field(i))
+
+			if !field.CanInterface() {
+				return
+			}
+
+			structPrinter(w, p, field.Interface())
+		}
+	}
+}
+
+func TableMapPrinter(data []byte) {
+	m := make(map[string]any)
+	if err := json.Unmarshal(data, &m); err != nil {
+		log.Warn(err.Error())
+		return
+	}
+
+	t := table.NewWriter()
+	addRow(t, "", m)
+	fmt.Println(t.Render())
+}
+
+func addRow(w table.Writer, prefix string, m any) {
+	rv := reflect.ValueOf(m)
+	switch rv.Type().Kind() {
+	case reflect.Map:
+		for _, k := range rv.MapKeys() {
+			key := k.String()
+			if prefix != "" {
+				key = strings.Join([]string{prefix, k.String()}, ".")
+			}
+			addRow(w, key, rv.MapIndex(k).Interface())
+		}
+	case reflect.Slice, reflect.Array:
+		for i := 0; i < rv.Len(); i++ {
+			addRow(w, fmt.Sprintf("%s[%d]", prefix, i), rv.Index(i).Interface())
+		}
+	default:
+		w.AppendRow(table.Row{prefix, m})
+	}
+}

internal/tool/tools.go

@@ -0,0 +1,19 @@
+package tool
+
+import "cmp"
+
+func Min[T cmp.Ordered](a, b T) T {
+	if a <= b {
+		return a
+	}
+
+	return b
+}
+
+func Max[T cmp.Ordered](a, b T) T {
+	if a >= b {
+		return a
+	}
+
+	return b
+}