refactor: code optimization

This commit is contained in:
meilin.huang
2025-04-23 20:36:32 +08:00
parent 798ab7d18b
commit 2170509d92
33 changed files with 445 additions and 380 deletions

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@@ -1,25 +1,72 @@
package cache
import (
"mayfly-go/pkg/utils/anyx"
"mayfly-go/pkg/utils/jsonx"
"time"
"github.com/may-fly/cast"
)
type Cache interface {
// 添加缓存,如果缓存则返回错误
Add(k string, v any) error
// Set 设置缓存值
// duration == -1 则为永久缓存
Set(key string, value any, duration time.Duration) error
// 如果不存在则添加缓存值,否则直接返回
AddIfAbsent(k string, v any)
// Set2Str 将value转为字符串后设置缓存值
Set2Str(key string, value any, duration time.Duration) error
// 如果存在则直接返回否则调用getValue回调函数获取值并添加该缓存值
// @return 缓存值
ComputeIfAbsent(k string, getValueFunc func(string) (any, error)) (any, error)
// 获取缓存值参数1为值参数2->是否存在该缓存
// Get 获取缓存值
Get(k string) (any, bool)
// 缓存数量
// GetJson 获取json缓存值并将其解析到指定的结构体指针
GetJson(k string, valPtr any) bool
// GetStr 获取字符串缓存值
GetStr(k string) (string, bool)
// GetInt 获取int缓存值
GetInt(k string) (int, bool)
// Delete 删除缓存
Delete(key string) error
// DeleteByKeyPrefix 根据key前缀删除缓存
DeleteByKeyPrefix(keyPrefix string) error
// Count 缓存数量
Count() int
// 删除缓存
Delete(k string)
// 清空所有缓存
// Clear 清空所有缓存
Clear()
}
type defaultCache struct {
c Cache // 具体的缓存实现, 用于实现一些接口的通用方法
}
func (dc *defaultCache) Set2Str(key string, value any, duration time.Duration) error {
return dc.c.Set(key, anyx.ToString(value), duration)
}
func (dc *defaultCache) GetStr(k string) (string, bool) {
if val, ok := dc.c.Get(k); ok {
return cast.ToString(val), true
}
return "", false
}
func (dc *defaultCache) GetInt(k string) (int, bool) {
if val, ok := dc.c.Get(k); ok {
return cast.ToInt(val), true
}
return 0, false
}
func (dc *defaultCache) GetJson(k string, valPtr any) bool {
if val, ok := dc.GetStr(k); ok {
jsonx.To(val, valPtr)
return true
}
return false
}

46
server/pkg/cache/global.go vendored Normal file
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@@ -0,0 +1,46 @@
package cache
import (
"mayfly-go/pkg/rediscli"
"time"
)
var c Cache = NewLocalCache()
// SetCache 设置全局缓存实现
func SetCache(cache Cache) {
c = cache
}
func GetStr(key string) string {
if val, ok := c.GetStr(key); ok {
return val
}
return ""
}
func GetInt(key string) int {
if val, ok := c.GetInt(key); ok {
return val
}
return 0
}
// Get 获取缓存值并使用json反序列化。返回是否获取成功。若不存在或者解析失败则返回false
func Get[T any](key string, valPtr T) bool {
return c.GetJson(key, valPtr)
}
// Set 设置缓存值
func Set(key string, value any, duration time.Duration) error {
return c.Set2Str(key, value, duration)
}
// 删除指定key
func Del(key string) {
c.Delete(key)
}
func UseRedisCache() bool {
return rediscli.GetCli() != nil
}

54
server/pkg/cache/local.go vendored Normal file
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@@ -0,0 +1,54 @@
package cache
import (
"strings"
"time"
"github.com/may-fly/cast"
)
type LocalCache struct {
defaultCache
tm *TimedCache
}
var _ (Cache) = (*LocalCache)(nil)
func NewLocalCache() *LocalCache {
lc := &LocalCache{
tm: NewTimedCache(time.Minute*time.Duration(5), 30*time.Second),
}
lc.c = lc
return lc
}
func (lc *LocalCache) Set(key string, value any, duration time.Duration) error {
return lc.tm.Add(key, value, duration)
}
func (lc *LocalCache) Get(k string) (any, bool) {
return lc.tm.Get(k)
}
func (lc *LocalCache) Delete(k string) error {
lc.tm.Delete(k)
return nil
}
func (lc *LocalCache) DeleteByKeyPrefix(keyPrefix string) error {
for key := range lc.tm.Items() {
if strings.HasPrefix(cast.ToString(key), keyPrefix) {
lc.tm.Delete(key)
}
}
return nil
}
func (lc *LocalCache) Count() int {
return lc.tm.Count()
}
func (lc *LocalCache) Clear() {
lc.tm.Clear()
}

66
server/pkg/cache/redis.go vendored Normal file
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@@ -0,0 +1,66 @@
package cache
import (
"context"
"errors"
"mayfly-go/pkg/utils/anyx"
"time"
"github.com/redis/go-redis/v9"
)
type RedisCache struct {
defaultCache
redisCli *redis.Client
}
var _ (Cache) = (*RedisCache)(nil)
func NewRedisCache(rc *redis.Client) *RedisCache {
rcache := &RedisCache{
redisCli: rc,
}
rcache.c = rcache
return rcache
}
var _ (Cache) = (*RedisCache)(nil)
func (rc *RedisCache) Set(key string, value any, duration time.Duration) error {
if _, ok := value.(string); !ok {
return errors.New("redis cache set err -> value must be string")
}
return rc.redisCli.Set(context.Background(), key, anyx.ToString(value), duration).Err()
}
func (rc *RedisCache) Get(k string) (any, bool) {
if val, err := rc.redisCli.Get(context.Background(), k).Result(); err != nil {
return "", false
} else {
return val, true
}
}
func (rc *RedisCache) Delete(k string) error {
return rc.redisCli.Del(context.Background(), k).Err()
}
func (rc *RedisCache) DeleteByKeyPrefix(keyPrefix string) error {
res, err := rc.redisCli.Keys(context.TODO(), keyPrefix+"*").Result()
if err != nil {
return err
}
for _, key := range res {
Del(key)
}
return nil
}
func (rc *RedisCache) Count() int {
return int(rc.redisCli.DBSize(context.Background()).Val())
}
func (rc *RedisCache) Clear() {
rc.redisCli.FlushDB(context.Background())
}

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@@ -1,105 +0,0 @@
package cache
import (
"encoding/json"
"mayfly-go/pkg/logx"
"mayfly-go/pkg/rediscli"
"mayfly-go/pkg/utils/anyx"
"strings"
"time"
"github.com/may-fly/cast"
)
var tm *TimedCache
// 如果系统有设置redis信息则从redis获取否则本机内存获取
func GetStr(key string) string {
if !UseRedisCache() {
checkCache()
val, _ := tm.Get(key)
if val == nil {
return ""
}
return cast.ToString(val)
}
if res, err := rediscli.Get(key); err == nil {
return res
}
return ""
}
func GetInt(key string) int {
val := GetStr(key)
if val == "" {
return 0
}
return cast.ToInt(key)
}
// Get 获取缓存值并使用json反序列化。返回是否获取成功。若不存在或者解析失败则返回false
func Get[T any](key string, valPtr T) bool {
strVal := GetStr(key)
if strVal == "" {
return false
}
if err := json.Unmarshal([]byte(strVal), valPtr); err != nil {
logx.Errorf("json转换缓存中的值失败: %v", err)
return false
}
return true
}
// SetStr 如果系统有设置redis信息则使用redis存否则存于本机内存。duration == -1则为永久缓存
func SetStr(key, value string, duration time.Duration) error {
if !UseRedisCache() {
checkCache()
return tm.Add(key, value, duration)
}
return rediscli.Set(key, value, duration)
}
// Set 如果系统有设置redis信息则使用redis存否则存于本机内存。duration == -1则为永久缓存
func Set(key string, value any, duration time.Duration) error {
strVal := anyx.ToString(value)
if !UseRedisCache() {
checkCache()
return tm.Add(key, strVal, duration)
}
return rediscli.Set(key, strVal, duration)
}
// 删除指定key
func Del(key string) {
if !UseRedisCache() {
checkCache()
tm.Delete(key)
return
}
rediscli.Del(key)
}
// DelByKeyPrefix 根据key前缀删除满足前缀的所有缓存
func DelByKeyPrefix(keyPrefix string) error {
if !UseRedisCache() {
checkCache()
for key := range tm.Items() {
if strings.HasPrefix(cast.ToString(key), keyPrefix) {
tm.Delete(key)
}
}
return nil
}
return rediscli.DelByKeyPrefix(keyPrefix)
}
func UseRedisCache() bool {
return rediscli.GetCli() != nil
}
func checkCache() {
if tm == nil {
tm = NewTimedCache(time.Minute*time.Duration(5), 30*time.Second)
}
}

View File

@@ -12,10 +12,6 @@ import (
"encoding/hex"
"encoding/pem"
"errors"
"mayfly-go/pkg/cache"
"mayfly-go/pkg/logx"
"mayfly-go/pkg/model"
"os"
"golang.org/x/crypto/bcrypt"
)
@@ -106,119 +102,6 @@ func RsaDecrypt(privateKeyStr string, data []byte) ([]byte, error) {
return rsa.DecryptPKCS1v15(rand.Reader, priv, data)
}
// 使用系统默认的私钥解密
// @param base64 字符串是否使用base64编码
func DefaultRsaDecrypt(data string, useBase64 bool) (string, error) {
// 空字符串不解密
if data == "" {
return "", nil
}
if useBase64 {
if decodeBase64, err := base64.StdEncoding.DecodeString(data); err != nil {
return "", err
} else {
data = string(decodeBase64)
}
}
priKey, err := GetRsaPrivateKey()
if err != nil {
return "", err
}
val, err := RsaDecrypt(priKey, []byte(data))
if err != nil {
return "", err
}
return string(val), nil
}
const (
// 公钥文件路径
publicKeyFile = "./mayfly_rsa.pub"
// 私钥文件路径
privateKeyFile = "./mayfly_rsa"
publicKeyK = "mayfly:public-key"
privateKeyK = "mayfly:private-key"
)
// 获取系统的RSA公钥
func GetRsaPublicKey() (string, error) {
if cache.UseRedisCache() {
publicKey := cache.GetStr(publicKeyK)
if publicKey != "" {
return publicKey, nil
}
} else {
content, err := os.ReadFile(publicKeyFile)
if err != nil {
publicKey := cache.GetStr(publicKeyK)
if publicKey != "" {
return publicKey, nil
}
} else {
return string(content), nil
}
}
_, pubKey, err := GenerateAndSaveRSAKey()
return pubKey, err
}
// 获取系统私钥
func GetRsaPrivateKey() (string, error) {
if cache.UseRedisCache() {
priKey := cache.GetStr(privateKeyK)
if priKey != "" {
return priKey, nil
}
} else {
content, err := os.ReadFile(privateKeyFile)
if err != nil {
priKey := cache.GetStr(privateKeyK)
if priKey != "" {
return priKey, nil
}
} else {
return string(content), nil
}
}
priKey, _, err := GenerateAndSaveRSAKey()
return priKey, err
}
// 生成并保存rsa key优先保存于磁盘若磁盘保存失败则保存至缓存
//
// 依次返回 privateKey, publicKey, error
func GenerateAndSaveRSAKey() (string, string, error) {
privateKey, publicKey, err := GenerateRSAKey(1024)
if err != nil {
return "", "", err
}
// 如果使用了redis缓存则优先存入redis
if cache.UseRedisCache() {
logx.Debug("系统配置了redis, rsa存入redis")
cache.SetStr(privateKeyK, privateKey, -1)
cache.SetStr(publicKeyK, publicKey, -1)
return privateKey, publicKey, nil
}
err = os.WriteFile(privateKeyFile, []byte(privateKey), 0644)
if err != nil {
logx.ErrorTrace("RSA私钥写入磁盘文件失败, 使用缓存存储该私钥", err)
cache.SetStr(privateKeyK, privateKey, -1)
}
err = os.WriteFile(publicKeyFile, []byte(publicKey), 0644)
if err != nil {
logx.ErrorTrace("RSA公钥写入磁盘文件失败, 使用缓存存储该公钥", err)
cache.SetStr(publicKeyK, publicKey, -1)
}
return privateKey, publicKey, nil
}
// AesEncrypt 加密
func AesEncrypt(data []byte, key []byte) ([]byte, error) {
//创建加密实例
@@ -281,12 +164,6 @@ func AesDecryptBase64(data string, key []byte) ([]byte, error) {
return AesDecrypt(dataByte, key)
}
func AesDecryptByLa(data string, la *model.LoginAccount) (string, error) {
key := []byte(la.GetAesKey())
res, err := AesDecryptBase64(data, key)
return string(res), err
}
// pkcs7Padding 填充
func pkcs7Padding(data []byte, blockSize int) []byte {
//判断缺少几位长度。最少1最多 blockSize