264 lines
7.2 KiB
Go
264 lines
7.2 KiB
Go
package oauth_api
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import (
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"encoding/json"
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"errors"
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"fmt"
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ginI18n "github.com/gin-contrib/i18n"
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"github.com/gin-gonic/gin"
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"github.com/yitter/idgenerator-go/idgen"
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"gorm.io/gorm"
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"net/http"
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"schisandra-cloud-album/common/enum"
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"schisandra-cloud-album/common/result"
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"schisandra-cloud-album/global"
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"schisandra-cloud-album/model"
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"strconv"
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)
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type GitHubUser struct {
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AvatarURL string `json:"avatar_url"`
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Bio interface{} `json:"bio"`
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Blog string `json:"blog"`
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Company interface{} `json:"company"`
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CreatedAt string `json:"created_at"`
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Email string `json:"email"`
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EventsURL string `json:"events_url"`
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Followers int `json:"followers"`
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FollowersURL string `json:"followers_url"`
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Following int `json:"following"`
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FollowingURL string `json:"following_url"`
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GistsURL string `json:"gists_url"`
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GravatarID string `json:"gravatar_id"`
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Hireable interface{} `json:"hireable"`
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HTMLURL string `json:"html_url"`
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ID int `json:"id"`
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Location interface{} `json:"location"`
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Login string `json:"login"`
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Name string `json:"name"`
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NodeID string `json:"node_id"`
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NotificationEmail interface{} `json:"notification_email"`
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OrganizationsURL string `json:"organizations_url"`
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PublicGists int `json:"public_gists"`
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PublicRepos int `json:"public_repos"`
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ReceivedEventsURL string `json:"received_events_url"`
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ReposURL string `json:"repos_url"`
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SiteAdmin bool `json:"site_admin"`
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StarredURL string `json:"starred_url"`
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SubscriptionsURL string `json:"subscriptions_url"`
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TwitterUsername interface{} `json:"twitter_username"`
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Type string `json:"type"`
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UpdatedAt string `json:"updated_at"`
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URL string `json:"url"`
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}
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// GetRedirectUrl 获取github登录url
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// @Summary 获取github登录url
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// @Description 获取github登录url
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// @Tags Github OAuth
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// @Produce json
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// @Success 200 {string} string "登录url"
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// @Router /api/oauth/github/get_url [get]
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func (OAuthAPI) GetRedirectUrl(c *gin.Context) {
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state := c.Query("state")
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clientId := global.CONFIG.OAuth.Github.ClientID
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redirectUrl := global.CONFIG.OAuth.Github.RedirectURI
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url := "https://github.com/login/oauth/authorize?client_id=" + clientId + "&redirect_uri=" + redirectUrl + "&state=" + state
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result.OkWithData(url, c)
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return
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}
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// GetTokenAuthUrl 通过code获取token认证url
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func GetTokenAuthUrl(code string) string {
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clientId := global.CONFIG.OAuth.Github.ClientID
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clientSecret := global.CONFIG.OAuth.Github.ClientSecret
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return fmt.Sprintf(
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"https://github.com/login/oauth/access_token?client_id=%s&client_secret=%s&code=%s",
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clientId, clientSecret, code,
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)
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}
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// GetToken 获取 token
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func GetToken(url string) (*Token, error) {
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// 形成请求
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var req *http.Request
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var err error
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if req, err = http.NewRequest(http.MethodGet, url, nil); err != nil {
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return nil, err
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}
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req.Header.Set("accept", "application/json")
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// 发送请求并获得响应
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var httpClient = http.Client{}
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var res *http.Response
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if res, err = httpClient.Do(req); err != nil {
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return nil, err
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}
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// 将响应体解析为 token，并返回
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var token Token
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if err = json.NewDecoder(res.Body).Decode(&token); err != nil {
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return nil, err
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}
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return &token, nil
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}
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// GetUserInfo 获取用户信息
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func GetUserInfo(token *Token) (map[string]interface{}, error) {
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// 形成请求
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var userInfoUrl = "https://api.github.com/user" // github用户信息获取接口
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var req *http.Request
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var err error
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if req, err = http.NewRequest(http.MethodGet, userInfoUrl, nil); err != nil {
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return nil, err
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}
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req.Header.Set("accept", "application/json")
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req.Header.Set("Authorization", fmt.Sprintf("token %s", token.AccessToken))
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// 发送请求并获取响应
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var client = http.Client{}
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var res *http.Response
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if res, err = client.Do(req); err != nil {
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return nil, err
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}
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// 将响应的数据写入 userInfo 中，并返回
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var userInfo = make(map[string]interface{})
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if err = json.NewDecoder(res.Body).Decode(&userInfo); err != nil {
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return nil, err
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}
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return userInfo, nil
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}
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// Callback 登录回调函数
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// @Summary 登录回调函数
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// @Description 登录回调函数
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// @Tags Github OAuth
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// @Produce json
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// @Param code query string true "code"
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// @Success 200 {string} string "登录成功"
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// @Router /api/oauth/github/callback [get]
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func (OAuthAPI) Callback(c *gin.Context) {
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var err error
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// 获取 code
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var code = c.Query("code")
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if code == "" {
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result.FailWithMessage(ginI18n.MustGetMessage(c, "ParamsError"), c)
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return
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}
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// 使用channel来接收异步操作的结果
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tokenChan := make(chan *Token)
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userInfoChan := make(chan map[string]interface{})
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errChan := make(chan error)
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// 异步获取token
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go func() {
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var tokenAuthUrl = GetTokenAuthUrl(code)
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token, err := GetToken(tokenAuthUrl)
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if err != nil {
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errChan <- err
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return
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}
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tokenChan <- token
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}()
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// 异步获取用户信息
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go func() {
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token := <-tokenChan
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if token == nil {
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return
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}
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userInfo, err := GetUserInfo(token)
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if err != nil {
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errChan <- err
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return
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}
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userInfoChan <- userInfo
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}()
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select {
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case err = <-errChan:
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global.LOG.Error(err)
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return
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case userInfo := <-userInfoChan:
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if userInfo == nil {
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global.LOG.Error(<-errChan)
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return
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}
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// 继续处理用户信息
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userInfoBytes, err := json.Marshal(<-userInfoChan)
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if err != nil {
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global.LOG.Error(err)
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return
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}
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var gitHubUser GitHubUser
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err = json.Unmarshal(userInfoBytes, &gitHubUser)
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if err != nil {
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global.LOG.Error(err)
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return
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}
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Id := strconv.Itoa(gitHubUser.ID)
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userSocial, err := userSocialService.QueryUserSocialByUUID(Id, enum.OAuthSourceGithub)
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if err != nil && errors.Is(err, gorm.ErrRecordNotFound) {
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db := global.DB
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tx := db.Begin() // 开始事务
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if tx.Error != nil {
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global.LOG.Error(tx.Error)
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return
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}
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defer func() {
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if r := recover(); r != nil {
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tx.Rollback()
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}
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}()
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// 第一次登录，创建用户
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uid := idgen.NextId()
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uidStr := strconv.FormatInt(uid, 10)
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user := model.ScaAuthUser{
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UID: &uidStr,
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Username: &gitHubUser.Login,
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Nickname: &gitHubUser.Name,
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Avatar: &gitHubUser.AvatarURL,
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Blog: &gitHubUser.Blog,
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Email: &gitHubUser.Email,
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}
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addUser, err := userService.AddUser(user)
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if err != nil {
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tx.Rollback()
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global.LOG.Error(err)
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return
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}
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github := enum.OAuthSourceGithub
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userSocial = model.ScaAuthUserSocial{
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UserID: &uidStr,
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UUID: &Id,
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Source: &github,
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}
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err = userSocialService.AddUserSocial(userSocial)
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if err != nil {
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tx.Rollback()
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global.LOG.Error(err)
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return
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}
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_, err = global.Casbin.AddRoleForUser(uidStr, enum.User)
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if err != nil {
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tx.Rollback()
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global.LOG.Error(err)
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return
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}
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if err := tx.Commit().Error; err != nil {
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tx.Rollback()
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global.LOG.Error(err)
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return
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}
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HandleLoginResponse(c, *addUser.UID)
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} else {
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HandleLoginResponse(c, *userSocial.UserID)
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}
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return
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}
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}
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