✨ add jwt / complete the rotation verification

utils/cache.go

@@ -0,0 +1,67 @@
+package utils
+
+import (
+	"sync"
+	"time"
+)
+
+type cachedata = struct {
+	data     []byte
+	createAt time.Time
+}
+
+var mux sync.Mutex
+
+var cachemaps = make(map[string]*cachedata)
+
+// WriteCache .
+func WriteCache(key string, data []byte) {
+	mux.Lock()
+	defer mux.Unlock()
+	cachemaps[key] = &cachedata{
+		createAt: time.Now(),
+		data:     data,
+	}
+}
+
+// ReadCache .
+func ReadCache(key string) []byte {
+	mux.Lock()
+	defer mux.Unlock()
+	if cd, ok := cachemaps[key]; ok {
+		return cd.data
+	}
+
+	return []byte{}
+}
+
+// ClearCache .
+func ClearCache(key string) {
+	mux.Lock()
+	defer mux.Unlock()
+	delete(cachemaps, key)
+}
+
+// RunTimedTask .
+func RunTimedTask() {
+	ticker := time.NewTicker(time.Minute * 5)
+	go func() {
+		for range ticker.C {
+			checkCacheOvertimeFile()
+		}
+	}()
+}
+
+func checkCacheOvertimeFile() {
+	var keys = make([]string, 0)
+	for key, data := range cachemaps {
+		ex := time.Now().Unix() - data.createAt.Unix()
+		if ex > (60 * 30) {
+			keys = append(keys, key)
+		}
+	}
+
+	for _, key := range keys {
+		ClearCache(key)
+	}
+}

utils/genValidateCode.go

@@ -0,0 +1,20 @@
+package utils
+
+import (
+	"fmt"
+	"math/rand"
+	"strings"
+	"time"
+)
+
+func GenValidateCode(width int) string {
+	numeric := [10]byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
+	r := len(numeric)
+	rand.New(rand.NewSource(time.Now().UnixNano()))
+
+	var sb strings.Builder
+	for i := 0; i < width; i++ {
+		fmt.Fprintf(&sb, "%d", numeric[rand.Intn(r)])
+	}
+	return sb.String()
+}

utils/jwt.go

@@ -0,0 +1,49 @@
+package utils
+
+import (
+	"github.com/golang-jwt/jwt/v5"
+	"schisandra-cloud-album/global"
+	"time"
+)
+
+type JWTPayload struct {
+	UserID   int    `json:"user_id"`
+	Role     string `json:"role"`
+	Username string `json:"username"`
+}
+
+type JWTClaims struct {
+	JWTPayload
+	jwt.RegisteredClaims
+}
+
+var MySecret = []byte(global.CONFIG.JWT.Secret)
+
+// GenerateToken generates a JWT token with the given payload
+func GenerateToken(payload JWTPayload) (string, error) {
+	claims := JWTClaims{
+		JWTPayload: payload,
+		RegisteredClaims: jwt.RegisteredClaims{
+			ExpiresAt: jwt.NewNumericDate(time.Now().Add(time.Hour * 24)),
+			IssuedAt:  jwt.NewNumericDate(time.Now()),
+			NotBefore: jwt.NewNumericDate(time.Now()),
+		},
+	}
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
+	return token.SignedString(MySecret)
+}
+
+// ParseToken parses a JWT token and returns the payload
+func ParseToken(tokenString string) (*JWTPayload, error) {
+	token, err := jwt.ParseWithClaims(tokenString, &JWTClaims{}, func(token *jwt.Token) (interface{}, error) {
+		return MySecret, nil
+	})
+	if err != nil {
+		global.LOG.Error(err)
+		return nil, err
+	}
+	if claims, ok := token.Claims.(*JWTClaims); ok && token.Valid {
+		return &claims.JWTPayload, nil
+	}
+	return nil, err
+}