shared project

main.go

@@ -0,0 +1,60 @@
+package main
+
+
+import (
+	"github.com/gin-gonic/gin"
+	"golang.org/x/oauth2"
+	"fmt"
+	"net/http"
+	"golang.org/x/oauth2/facebook"
+	"golang.org/x/oauth2/google"
+)
+
+var config *oauth2.Config
+
+func getConfig(snsType SNSType) *oauth2.Config {
+
+	if snsType == FB_TYPE {
+		return  &oauth2.Config{
+			ClientID:FB_CLIENT_ID,
+			ClientSecret:FB_CLIENT_SECRET,
+			RedirectURL:REDIRECT_URL,
+			Scopes:[]string{"email","public_profile"},
+			Endpoint:facebook.Endpoint,
+		}
+	} else if snsType == GG_TYPE {
+
+		return  &oauth2.Config{
+			ClientID:GG_CLIENT_ID,
+			ClientSecret:GG_CLIENT_SECRET,
+			RedirectURL:REDIRECT_URL,
+			Scopes:[]string{"https://www.googleapis.com/auth/userinfo.email"},
+			Endpoint:google.Endpoint,
+		}
+	}
+
+	return nil
+}
+func Home(c *gin.Context)  {
+	config = getConfig(GG_TYPE)
+	codeUrl := config.AuthCodeURL("")
+	http.Redirect(c.Writer, c.Request, codeUrl,http.StatusTemporaryRedirect)
+
+}
+
+func SNSCallback(c *gin.Context)  {
+	c.Writer.Header().Set("Content-Type", "text/html; charset=utf-8")
+
+	code := c.Request.FormValue("code")
+
+	info := GetSNSInfo(config,code,GG_TYPE)
+	c.Writer.Write([]byte(fmt.Sprintf("Usern emailis %s and email is %s<br>", info.Name,  info.Email)))
+}
+func main() {
+	 r := gin.Default()
+
+	r.GET("/", Home)
+	r.GET("/SNSCallback", SNSCallback)
+
+	r.Run()
+}

oauth.go

@@ -0,0 +1,61 @@
+package main
+
+import (
+	"fmt"
+	"net/http"
+	"encoding/json"
+	"golang.org/x/oauth2"
+	"golang.org/x/net/context"
+	"log"
+	"io/ioutil"
+)
+
+type UserSNSInfo struct {
+	//Id string			`json:"id"`
+	Name string			`json:"name"`
+	Email string		`json:"email"`
+	AccessToken string
+}
+
+func GetAccessToken(config *oauth2.Config, code string) *oauth2.Token {
+
+	token, err := config.Exchange(context.Background(), code)
+
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	fmt.Println(token.AccessToken,"Expire :", token.Expiry, "type: ", token.TokenType)
+
+	return token
+}
+
+func GetSNSInfo(config *oauth2.Config, code string, snsType SNSType) UserSNSInfo {
+
+	var response *http.Response
+	var err error
+
+	accessToken := GetAccessToken(config, code)
+	if snsType == FB_TYPE {
+		response, err = http.Get("https://graph.facebook.com/me?fields=id,name,email&access_token=" + accessToken.AccessToken)
+	}else if snsType == GG_TYPE {
+		response, err = http.Get("https://www.googleapis.com/oauth2/v3/userinfo?access_token=" + accessToken.AccessToken)
+	}
+
+	if err != nil {
+		fmt.Println(err.Error())
+	}
+
+	data, err := ioutil.ReadAll(response.Body)
+
+	if err != nil {
+		fmt.Println(err.Error())
+	}
+	userinfo:=  UserSNSInfo{}
+	json.Unmarshal([]byte(data), &userinfo)
+	userinfo.AccessToken = accessToken.AccessToken
+
+	fmt.Printf("Username %s  and email is %s<br>", userinfo.Name, userinfo.Email)
+
+	return userinfo
+}

oauth_test.go

@@ -0,0 +1,35 @@
+package main
+
+import (
+	"net/http"
+	"testing"
+	"errors"
+	"golang.org/x/oauth2"
+	"golang.org/x/net/context"
+)
+
+type appOAuthTransfer1 struct {
+	rt func(req *http.Request) (resp *http.Response, err error)
+}
+
+func (t *appOAuthTransfer1) RoundTrip(req *http.Request) (resp *http.Response, err error) {
+	return t.rt(req)
+}
+
+func TestExchangeRequest(t *testing.T) {
+	tr := &appOAuthTransfer1{
+		rt: func(r *http.Request) (w *http.Response, err error) {
+			headerAuth := r.Header.Get("Authorization")
+			if headerAuth != "" {
+				t.Errorf("Unexpected authorization header, %v is found.", headerAuth)
+			}
+			return nil, errors.New("no response")
+		},
+	}
+
+	c := &http.Client{Transport: tr}
+
+	conf := getConfig(FB_TYPE)
+	ctx := context.WithValue(context.Background(), oauth2.HTTPClient, c)
+	conf.Exchange(ctx, "code")
+}

snsconst.go

@@ -0,0 +1,16 @@
+package main
+
+const FB_CLIENT_ID = "808542632617259"
+const FB_CLIENT_SECRET = "8982cf312e1f31ba42f4ce847564aeff"
+
+const GG_CLIENT_ID = "609607264245-qfq7odj24hi3minf4juhuje8445m2ro3.apps.googleusercontent.com"
+const GG_CLIENT_SECRET = "LUs0jpkLLhJtpKi5Zz5bDBo4"
+
+const REDIRECT_URL =  "http://localhost:8080/SNSCallback"
+
+type SNSType int
+
+const (
+	FB_TYPE SNSType = 1
+	GG_TYPE SNSType = 2
+)