go-bouquins/bouquins/github.go
2017-09-09 12:28:46 +02:00

90 lines
2.1 KiB
Go

package bouquins
import (
"encoding/json"
"fmt"
"log"
"net/http"
"golang.org/x/oauth2"
"golang.org/x/oauth2/github"
)
// GithubProvider implements OAuth2 client with github.com
type GithubProvider string
type githubEmail struct {
Email string `json:"email"`
Primary bool `json:"primary"`
Verified bool `json:"verified"`
Visibility string `json:"visibility"`
}
func init() {
Providers = append(Providers, GithubProvider("github"))
}
// Name returns name of provider
func (p GithubProvider) Name() string {
return string(p)
}
// Label returns label of provider
func (p GithubProvider) Label() string {
return "Github"
}
// Icon returns icon CSS class for provider
func (p GithubProvider) Icon() string {
return "githubicon"
}
func (p GithubProvider) Config(conf *BouquinsConf) *oauth2.Config {
// FIXME client ID and secret in conf file
return &oauth2.Config{
ClientID: "8b0aedf07828f06918a0",
ClientSecret: "eb26ec9c986fc28bd169bdddf169b794861e0d65",
Scopes: []string{"user:email"},
Endpoint: github.Endpoint,
}
}
// GetUser returns github primary email
func (p GithubProvider) GetUser(token *oauth2.Token) (string, error) {
apiReq, err := http.NewRequest("GET", "https://api.github.com/user/emails", nil)
apiReq.Header.Add("Accept", "application/vnd.github.v3+json")
apiReq.Header.Add("Authorization", "token "+token.AccessToken)
client := &http.Client{}
response, err := client.Do(apiReq)
defer response.Body.Close()
if err != nil {
log.Println("Auth error", err)
return "", fmt.Errorf("Authentification error")
}
dec := json.NewDecoder(response.Body)
var emails []githubEmail
err = dec.Decode(&emails)
if err != nil {
log.Println("Error reading github API response", err)
return "", fmt.Errorf("Error reading github API response")
}
var userEmail string
for _, email := range emails {
if email.Primary && email.Verified {
userEmail = email.Email
}
}
log.Println("User email:", userEmail)
return userEmail, nil
}
func findProvider(name string) OAuth2Provider {
for _, p := range Providers {
if p.Name() == name {
return p
}
}
return nil
}