init: 毛孩子计划 小程序 + Go 后端 + 内嵌后台
- pets-fe: 微信原生小程序(首页/计划/记录/报告/社区/引导), 服务端驱动、无假数据;弹层改用 scroll-view,打开时隐藏自定义 tabBar - pets-be: Gin + GORM(MySQL, sundynix_ 前缀) + MinIO,统一响应/分页, 微信 code2session 登录,provider-neutral AI(DeepSeek),go:embed React 后台 - 修复:分段选择类型不匹配(字符串 vs 数字)导致选不中 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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@@ -0,0 +1,74 @@
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package jwt
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import (
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"errors"
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"time"
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"github.com/golang-jwt/jwt/v5"
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)
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// Kind 区分令牌主体:小程序用户 / 后台管理员
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type Kind string
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const (
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KindUser Kind = "user"
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KindAdmin Kind = "admin"
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)
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// Claims 自定义声明,user 与 admin 复用同一结构,用 Kind 区分
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type Claims struct {
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ID uint `json:"id"`
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Kind Kind `json:"kind"`
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Name string `json:"name"`
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Role string `json:"role,omitempty"`
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jwt.RegisteredClaims
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}
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// Manager 签发/校验令牌
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type Manager struct {
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secret []byte
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expireHours int
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}
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func NewManager(secret string, expireHours int) *Manager {
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if expireHours <= 0 {
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expireHours = 168
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}
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return &Manager{secret: []byte(secret), expireHours: expireHours}
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}
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// Generate 签发令牌
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func (m *Manager) Generate(id uint, kind Kind, name, role string) (string, error) {
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now := time.Now()
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claims := Claims{
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ID: id,
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Kind: kind,
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Name: name,
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Role: role,
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RegisteredClaims: jwt.RegisteredClaims{
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IssuedAt: jwt.NewNumericDate(now),
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ExpiresAt: jwt.NewNumericDate(now.Add(time.Duration(m.expireHours) * time.Hour)),
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Issuer: "pets-be",
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},
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}
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token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
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return token.SignedString(m.secret)
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}
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// Parse 校验并解析令牌
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func (m *Manager) Parse(tokenStr string) (*Claims, error) {
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token, err := jwt.ParseWithClaims(tokenStr, &Claims{}, func(t *jwt.Token) (any, error) {
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if _, ok := t.Method.(*jwt.SigningMethodHMAC); !ok {
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return nil, errors.New("unexpected signing method")
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}
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return m.secret, nil
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})
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if err != nil {
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return nil, err
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}
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claims, ok := token.Claims.(*Claims)
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if !ok || !token.Valid {
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return nil, errors.New("invalid token")
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}
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return claims, nil
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}
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