package serve
import (
"context"
"fmt"
"github.com/google/uuid"
"github.com/loveuer/nf"
"github.com/loveuer/nf/nft/log"
"net/http"
"uauth/internal/tool"
)
func authenticateUser(username, password string) (bool, error) {
// 这里你应该实现真实的用户认证逻辑
// 为了简化，我们这里直接硬编码一个用户名和密码
if username == "user" && password == "pass" {
return true, nil
}
return false, fmt.Errorf("invalid username or password")
}
// 处理登录请求
func handleLogin(c *nf.Ctx) error {
username := c.FormValue("username")
password := c.FormValue("password")
// 认证用户
ok, err := authenticateUser(username, password)
if err != nil || !ok {
return c.Status(http.StatusUnauthorized).SendString("Unauthorized")
}
// 用户认证成功，重定向到授权页面
http.Redirect(c.Writer, c.Request, "/authorize?client_id=12345&response_type=code&redirect_uri=http%3A%2F%2Flocalhost%3A8080%2Fcallback&scope=read%20write", http.StatusFound)
return nil
}
// 处理授权请求
func handleAuthorize(c *nf.Ctx) error {
// 解析查询参数
clientID := c.Query("client_id")
responseType := c.Query("response_type")
redirectURI := c.Query("redirect_uri")
scope := c.Query("scope")
// 检查客户端 ID 和其他参数
// 在实际应用中，你需要检查这些参数是否合法
if clientID != "12345" || responseType != "code" || redirectURI != "http://localhost:8080/callback" {
return c.Status(http.StatusBadRequest).SendString("Invalid request")
}
// 显示授权页面给用户
_, err := c.Write([]byte(`
Authorization
Do you want to authorize this application?
`))
return err
}
// 处理用户的授权批准
func handleApprove(c *nf.Ctx) error {
// 获取表单数据
clientID := c.FormValue("client_id")
redirectURI := c.FormValue("redirect_uri")
scope := c.FormValue("scope")
// 生成授权码
authorizationCode := uuid.New().String()[:8]
log.Info("[D] client_id = %s, scope = %s, auth_code = %s", clientID, scope, authorizationCode)
// 重定向到回调 URL 并附带授权码
http.Redirect(c.Writer, c.Request, redirectURI+"?code="+authorizationCode, http.StatusFound)
return nil
}
// 令牌请求的处理
func handleToken(c *nf.Ctx) error {
// 获取请求参数
grantType := c.FormValue("grant_type")
code := c.FormValue("code")
redirectURI := c.FormValue("redirect_uri")
// 简单验证
if grantType != "authorization_code" {
return c.Status(http.StatusBadRequest).SendString("Unsupported grant type")
}
mu.Lock()
defer mu.Unlock()
// 验证授权码是否有效
accessToken, ok := authCodes[code]
if !ok {
return c.Status(http.StatusBadRequest).SendString("Invalid authorization code")
}
// 生成访问令牌
token := generateAccessToken()
// 返回访问令牌
return c.JSON(map[string]string{
"access_token": token,
"token_type": "bearer",
"expires_in": "3600", // 访问令牌有效期（秒）
})
// 清除已使用的授权码
delete(authCodes, code)
}
func Run(ctx context.Context, prefix string, address string) error {
app := nf.New()
api := app.Group(prefix)
// 设置路由
api.Get("/login", handleLogin)
api.Get("/authorize", handleAuthorize)
api.Post("/approve", handleApprove)
api.Post("/token", handleToken)
// 启动 HTTP 服务器
log.Info("Starting server on: %s", address)
go func() {
<-ctx.Done()
_ = app.Shutdown(tool.Timeout(2))
}()
return app.Run(address)
}