重构优化

This commit is contained in:
starry
2025-06-11 11:58:57 +08:00
committed by GitHub
parent 86ca361057
commit a87f76dbd0
26 changed files with 5530 additions and 4569 deletions

195
src/config.go Normal file
View File

@@ -0,0 +1,195 @@
package main
import (
"fmt"
"os"
"strconv"
"strings"
"sync"
"github.com/pelletier/go-toml/v2"
)
// AppConfig 应用配置结构体
type AppConfig struct {
Server struct {
Host string `toml:"host"` // 监听地址
Port int `toml:"port"` // 监听端口
FileSize int64 `toml:"fileSize"` // 文件大小限制(字节)
} `toml:"server"`
RateLimit struct {
RequestLimit int `toml:"requestLimit"` // 每小时请求限制
PeriodHours float64 `toml:"periodHours"` // 限制周期(小时)
} `toml:"rateLimit"`
Security struct {
WhiteList []string `toml:"whiteList"` // 白名单IP/CIDR列表
BlackList []string `toml:"blackList"` // 黑名单IP/CIDR列表
} `toml:"security"`
Proxy struct {
WhiteList []string `toml:"whiteList"` // 代理白名单(仓库级别)
BlackList []string `toml:"blackList"` // 代理黑名单(仓库级别)
} `toml:"proxy"`
Download struct {
MaxImages int `toml:"maxImages"` // 单次下载最大镜像数量限制
} `toml:"download"`
}
var (
appConfig *AppConfig
appConfigLock sync.RWMutex
)
// DefaultConfig 返回默认配置
func DefaultConfig() *AppConfig {
return &AppConfig{
Server: struct {
Host string `toml:"host"`
Port int `toml:"port"`
FileSize int64 `toml:"fileSize"`
}{
Host: "0.0.0.0",
Port: 5000,
FileSize: 2 * 1024 * 1024 * 1024, // 2GB
},
RateLimit: struct {
RequestLimit int `toml:"requestLimit"`
PeriodHours float64 `toml:"periodHours"`
}{
RequestLimit: 20,
PeriodHours: 1.0,
},
Security: struct {
WhiteList []string `toml:"whiteList"`
BlackList []string `toml:"blackList"`
}{
WhiteList: []string{},
BlackList: []string{},
},
Proxy: struct {
WhiteList []string `toml:"whiteList"`
BlackList []string `toml:"blackList"`
}{
WhiteList: []string{},
BlackList: []string{},
},
Download: struct {
MaxImages int `toml:"maxImages"`
}{
MaxImages: 10, // 默认值最多同时下载10个镜像
},
}
}
// GetConfig 安全地获取配置副本
func GetConfig() *AppConfig {
appConfigLock.RLock()
defer appConfigLock.RUnlock()
if appConfig == nil {
return DefaultConfig()
}
// 返回配置的深拷贝
configCopy := *appConfig
configCopy.Security.WhiteList = append([]string(nil), appConfig.Security.WhiteList...)
configCopy.Security.BlackList = append([]string(nil), appConfig.Security.BlackList...)
configCopy.Proxy.WhiteList = append([]string(nil), appConfig.Proxy.WhiteList...)
configCopy.Proxy.BlackList = append([]string(nil), appConfig.Proxy.BlackList...)
return &configCopy
}
// setConfig 安全地设置配置
func setConfig(cfg *AppConfig) {
appConfigLock.Lock()
defer appConfigLock.Unlock()
appConfig = cfg
}
// LoadConfig 加载配置文件
func LoadConfig() error {
// 首先使用默认配置
cfg := DefaultConfig()
// 尝试加载TOML配置文件
if data, err := os.ReadFile("config.toml"); err == nil {
if err := toml.Unmarshal(data, cfg); err != nil {
return fmt.Errorf("解析配置文件失败: %v", err)
}
} else {
fmt.Println("未找到config.toml使用默认配置")
}
// 从环境变量覆盖配置
overrideFromEnv(cfg)
// 设置配置
setConfig(cfg)
fmt.Printf("配置加载成功: 监听 %s:%d, 文件大小限制 %d MB, 限流 %d请求/%g小时, 离线镜像并发数 %d\n",
cfg.Server.Host, cfg.Server.Port, cfg.Server.FileSize/(1024*1024),
cfg.RateLimit.RequestLimit, cfg.RateLimit.PeriodHours, cfg.Download.MaxImages)
return nil
}
// overrideFromEnv 从环境变量覆盖配置
func overrideFromEnv(cfg *AppConfig) {
// 服务器配置
if val := os.Getenv("SERVER_HOST"); val != "" {
cfg.Server.Host = val
}
if val := os.Getenv("SERVER_PORT"); val != "" {
if port, err := strconv.Atoi(val); err == nil && port > 0 {
cfg.Server.Port = port
}
}
if val := os.Getenv("MAX_FILE_SIZE"); val != "" {
if size, err := strconv.ParseInt(val, 10, 64); err == nil && size > 0 {
cfg.Server.FileSize = size
}
}
// 限流配置
if val := os.Getenv("RATE_LIMIT"); val != "" {
if limit, err := strconv.Atoi(val); err == nil && limit > 0 {
cfg.RateLimit.RequestLimit = limit
}
}
if val := os.Getenv("RATE_PERIOD_HOURS"); val != "" {
if period, err := strconv.ParseFloat(val, 64); err == nil && period > 0 {
cfg.RateLimit.PeriodHours = period
}
}
// IP限制配置
if val := os.Getenv("IP_WHITELIST"); val != "" {
cfg.Security.WhiteList = append(cfg.Security.WhiteList, strings.Split(val, ",")...)
}
if val := os.Getenv("IP_BLACKLIST"); val != "" {
cfg.Security.BlackList = append(cfg.Security.BlackList, strings.Split(val, ",")...)
}
// 下载限制配置
if val := os.Getenv("MAX_IMAGES"); val != "" {
if maxImages, err := strconv.Atoi(val); err == nil && maxImages > 0 {
cfg.Download.MaxImages = maxImages
}
}
}
// CreateDefaultConfigFile 创建默认配置文件
func CreateDefaultConfigFile() error {
cfg := DefaultConfig()
data, err := toml.Marshal(cfg)
if err != nil {
return fmt.Errorf("序列化默认配置失败: %v", err)
}
return os.WriteFile("config.toml", data, 0644)
}