Logan.Li
4ae318335c
基于 opsx-web-lite 框架（Go+Gin+Vue3+Element Plus）构建许可证管理服务器，
业务域参考 Licence 服务器 Web 版。
【后端 - 4层架构】
- 认证：单 Admin 表 + JWT（HS256）
- 核心授权域：Product / Customer / License / Activation
· License 生成/验证/激活/机器绑定/心跳/续期/吊销
· 客户端契约接口：/api/v1/license/{verify,activate,deactivate,heartbeat}
- 定价订单：Plan / Order / 支付网关配置
- 防重复购买：CustomerEntitlement + 幂等支付 webhook + 手动发放
- 分析审计：Dashboard 统计 / Analytics / AuditLog / Setting 管理
【前端】
- Dashboard（ECharts 图表）、产品、客户、License、计划、订单、权益、日志、设置
- 9 个完整 CRUD 业务页面 + 登录/布局
【部署】
- SQLite + 单二进制（//go:embed 嵌入前端）
- 开发：./run.sh start（前端5181/后端9001）
- 生产：./run.sh build && ./run.sh binary start
- 默认账号：admin/admin
Author: Logan.Li
90 lines
2.4 KiB
Go
90 lines
2.4 KiB
Go
package utils
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import (
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"crypto/rand"
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"encoding/hex"
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"fmt"
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"strings"
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"time"
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)
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// GenerateLicenseKey 生成 License 密钥（格式: LIC-YYYY-XXXX-XXXX-XXXX-XXXX） // Logan.Li
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func GenerateLicenseKey() string {
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bytes := make([]byte, 16)
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_, _ = rand.Read(bytes)
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year := time.Now().Year()
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part1 := hex.EncodeToString(bytes[0:4])
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part2 := hex.EncodeToString(bytes[4:8])
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part3 := hex.EncodeToString(bytes[8:12])
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part4 := hex.EncodeToString(bytes[12:16])
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return fmt.Sprintf("LIC-%d-%s-%s-%s-%s",
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year,
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strings.ToUpper(part1[:4]),
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strings.ToUpper(part2[:4]),
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strings.ToUpper(part3[:4]),
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strings.ToUpper(part4[:4]))
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}
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// GenerateOrderNo 生成唯一订单号（格式: ORD-YYYYMMDD-XXXXXXXX） // Logan.Li
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func GenerateOrderNo() string {
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bytes := make([]byte, 4)
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_, _ = rand.Read(bytes)
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return fmt.Sprintf("ORD-%s-%s", time.Now().Format("20060102"), strings.ToUpper(hex.EncodeToString(bytes)))
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}
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// CalculateDaysLeft 计算剩余天数（向下取整，最小为 0） // Logan.Li
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func CalculateDaysLeft(endDate time.Time) int {
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diff := endDate.Sub(time.Now())
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days := int(diff.Hours() / 24)
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if days < 0 {
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return 0
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}
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return days
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}
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// IsLicenseExpired 检查 License 是否过期 // Logan.Li
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func IsLicenseExpired(endDate time.Time) bool {
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return time.Now().After(endDate)
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}
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// IsExpiringSoon 检查 License 是否即将到期 // Logan.Li
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func IsExpiringSoon(endDate time.Time, warningDays int) bool {
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daysLeft := CalculateDaysLeft(endDate)
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return daysLeft > 0 && daysLeft <= warningDays
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}
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// ParseFeatures 解析产品功能列表 JSON 为字符串切片 // Logan.Li
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func ParseFeatures(featuresJSON string) []string {
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if featuresJSON == "" {
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return []string{}
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}
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trimmed := strings.Trim(featuresJSON, "[]")
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if trimmed == "" {
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return []string{}
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}
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// 简单解析：去引号后按逗号分割 // Logan.Li
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trimmed = strings.ReplaceAll(trimmed, `"`, "")
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parts := strings.Split(trimmed, ",")
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result := make([]string, 0, len(parts))
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for _, p := range parts {
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if s := strings.TrimSpace(p); s != "" {
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result = append(result, s)
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}
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}
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return result
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}
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// FormatFeatures 将功能列表格式化为 JSON 字符串 // Logan.Li
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func FormatFeatures(features []string) string {
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if len(features) == 0 {
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return "[]"
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}
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quoted := make([]string, len(features))
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for i, f := range features {
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quoted[i] = fmt.Sprintf(`"%s"`, f)
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}
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return fmt.Sprintf("[%s]", strings.Join(quoted, ","))
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}
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