同步历史版本代码

internal/logic/common/getdownloadlinklogic.go

@@ -0,0 +1,71 @@
+package common
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/logger"
+)
+
+type GetDownloadLinkLogic struct {
+	logger.Logger
+	ctx    context.Context
+	svcCtx *svc.ServiceContext
+}
+
+// NewGetDownloadLinkLogic 获取下载链接
+func NewGetDownloadLinkLogic(ctx context.Context, svcCtx *svc.ServiceContext) *GetDownloadLinkLogic {
+	return &GetDownloadLinkLogic{
+		Logger: logger.WithContext(ctx),
+		ctx:    ctx,
+		svcCtx: svcCtx,
+	}
+}
+
+// GetDownloadLink 根据邀请码和平台动态生成下载链接
+// 生成的链接格式: https://{host}/v1/common/client/download/file/{platform}-{version}-ic_{invite_code}.{ext}
+// Nginx 会拦截此请求，将其映射到实际文件，并在 Content-Disposition 中设置带邀请码的文件名
+func (l *GetDownloadLinkLogic) GetDownloadLink(req *types.GetDownloadLinkRequest) (resp *types.GetDownloadLinkResponse, err error) {
+	// 1. 获取站点域名 (数据库配置通常会覆盖文件配置)
+	host := l.svcCtx.Config.Site.Host
+	if host == "" {
+		// 保底域名
+		host = "api.airoport.co"
+	}
+
+	// 2. 版本号 (后续可以从数据库或配置中读取)
+	version := "1.0.0"
+
+	// 3. 根据平台确定文件扩展名
+	var ext string
+	switch req.Platform {
+	case "windows":
+		ext = ".exe"
+	case "mac":
+		ext = ".dmg"
+	case "android":
+		ext = ".apk"
+	case "ios":
+		ext = ".ipa"
+	default:
+		ext = ".bin"
+	}
+
+	// 4. 构建文件名: Hi快VPN-平台-版本号[-ic_邀请码].扩展名
+	const AppNamePrefix = "Hi快VPN"
+	var filename string
+	if req.InviteCode != "" {
+		filename = fmt.Sprintf("%s-%s-%s-ic-%s%s", AppNamePrefix, req.Platform, version, req.InviteCode, ext)
+	} else {
+		filename = fmt.Sprintf("%s-%s-%s%s", AppNamePrefix, req.Platform, version, ext)
+	}
+
+	// 5. 构建完整 URL (Nginx 会拦截此路径进行虚拟更名处理)
+	url := fmt.Sprintf("https://%s/v1/common/client/download/file/%s", host, filename)
+
+	return &types.GetDownloadLinkResponse{
+		Url: url,
+	}, nil
+}