go-bouquins/bouquins/github.go
2017-09-08 20:41:30 +02:00

70 lines
1.6 KiB
Go

package bouquins
import (
"encoding/json"
"fmt"
"log"
"net/http"
"golang.org/x/oauth2"
)
// 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)
}
// 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")
}
fmt.Printf("Content: %s\n", emails)
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
}