Refactor packages to have more idiomatic code base

server/oauth2/google.go

@@ -1,74 +0,0 @@
-// Copyright 2017 Frédéric Guillot. All rights reserved.
-// Use of this source code is governed by the Apache 2.0
-// license that can be found in the LICENSE file.
-
-package oauth2
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-
-	"golang.org/x/oauth2"
-)
-
-type googleProfile struct {
-	Sub   string `json:"sub"`
-	Email string `json:"email"`
-}
-
-type googleProvider struct {
-	clientID     string
-	clientSecret string
-	redirectURL  string
-}
-
-func (g googleProvider) GetUserExtraKey() string {
-	return "google_id"
-}
-
-func (g googleProvider) GetRedirectURL(state string) string {
-	return g.config().AuthCodeURL(state)
-}
-
-func (g googleProvider) GetProfile(code string) (*Profile, error) {
-	conf := g.config()
-	ctx := context.Background()
-	token, err := conf.Exchange(ctx, code)
-	if err != nil {
-		return nil, err
-	}
-
-	client := conf.Client(ctx, token)
-	resp, err := client.Get("https://www.googleapis.com/oauth2/v3/userinfo")
-	if err != nil {
-		return nil, err
-	}
-	defer resp.Body.Close()
-
-	var user googleProfile
-	decoder := json.NewDecoder(resp.Body)
-	if err := decoder.Decode(&user); err != nil {
-		return nil, fmt.Errorf("unable to unserialize google profile: %v", err)
-	}
-
-	profile := &Profile{Key: g.GetUserExtraKey(), ID: user.Sub, Username: user.Email}
-	return profile, nil
-}
-
-func (g googleProvider) config() *oauth2.Config {
-	return &oauth2.Config{
-		RedirectURL:  g.redirectURL,
-		ClientID:     g.clientID,
-		ClientSecret: g.clientSecret,
-		Scopes:       []string{"email"},
-		Endpoint: oauth2.Endpoint{
-			AuthURL:  "https://accounts.google.com/o/oauth2/auth",
-			TokenURL: "https://accounts.google.com/o/oauth2/token",
-		},
-	}
-}
-
-func newGoogleProvider(clientID, clientSecret, redirectURL string) *googleProvider {
-	return &googleProvider{clientID: clientID, clientSecret: clientSecret, redirectURL: redirectURL}
-}