grafana/pkg/api/api_oauth_github.go
2014-09-22 11:39:40 +02:00

113 lines
2.6 KiB
Go

package api
import (
"encoding/json"
"net/http"
log "github.com/alecthomas/log4go"
"github.com/gin-gonic/gin"
"github.com/golang/oauth2"
"github.com/torkelo/grafana-pro/pkg/models"
"github.com/torkelo/grafana-pro/pkg/stores"
)
var (
githubOAuthConfig *oauth2.Config
githubRedirectUrl string = "http://localhost:3000/oauth2/github/callback"
githubAuthUrl string = "https://github.com/login/oauth/authorize"
githubTokenUrl string = "https://github.com/login/oauth/access_token"
)
func init() {
addRoutes(func(self *HttpServer) {
if !self.cfg.Http.GithubOAuth.Enabled {
return
}
self.router.GET("/oauth2/github", self.oauthGithub)
self.router.GET("/oauth2/github/callback", self.oauthGithubCallback)
options := &oauth2.Options{
ClientID: self.cfg.Http.GithubOAuth.ClientId,
ClientSecret: self.cfg.Http.GithubOAuth.ClientSecret,
RedirectURL: githubRedirectUrl,
Scopes: []string{"user:email"},
}
cfg, err := oauth2.NewConfig(options, githubAuthUrl, githubTokenUrl)
if err != nil {
log.Error("Failed to init github auth %v", err)
}
githubOAuthConfig = cfg
})
}
func (self *HttpServer) oauthGithub(c *gin.Context) {
url := githubOAuthConfig.AuthCodeURL("", "online", "auto")
c.Redirect(302, url)
}
type githubUserInfoDto struct {
Login string `json:"login"`
Name string `json:"name"`
Email string `json:"email"`
Company string `json:"company"`
}
func (self *HttpServer) oauthGithubCallback(c *gin.Context) {
code := c.Request.URL.Query()["code"][0]
log.Info("OAuth code: %v", code)
transport, err := githubOAuthConfig.NewTransportWithCode(code)
if err != nil {
c.String(500, "Failed to exchange oauth token: "+err.Error())
return
}
client := http.Client{Transport: transport}
resp, err := client.Get("https://api.github.com/user")
if err != nil {
c.String(500, err.Error())
return
}
var userInfo githubUserInfoDto
decoder := json.NewDecoder(resp.Body)
err = decoder.Decode(&userInfo)
if err != nil {
c.String(500, err.Error())
return
}
if len(userInfo.Email) < 5 {
c.String(500, "Invalid email")
return
}
// try find existing account
account, err := self.store.GetAccountByLogin(userInfo.Email)
// create account if missing
if err == stores.ErrAccountNotFound {
account = &models.Account{
Login: userInfo.Login,
Email: userInfo.Email,
Name: userInfo.Name,
Company: userInfo.Company,
}
if err = self.store.CreateAccount(account); err != nil {
log.Error("Failed to create account %v", err)
c.String(500, "Failed to create account")
return
}
}
// login
loginUserWithAccount(account, c)
c.Redirect(302, "/")
}