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feat: add oidc for google login

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This commit is contained in:
Lakhan Samani
2021-12-03 22:55:27 +05:30
parent a9cf301344
commit 6ca37a0d50
6 changed files with 96 additions and 39 deletions
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47
server/handlers/oauthCallback.go
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@@ -1,6 +1,7 @@
package handlers
import (
"context"
"encoding/json"
"fmt"
"io/ioutil"
@@ -15,36 +16,50 @@ import (
"github.com/authorizerdev/authorizer/server/oauth"
"github.com/authorizerdev/authorizer/server/session"
"github.com/authorizerdev/authorizer/server/utils"
"github.com/coreos/go-oidc/v3/oidc"
"github.com/gin-gonic/gin"
"golang.org/x/oauth2"
)
func processGoogleUserInfo(code string) (db.User, error) {
user := db.User{}
token, err := oauth.OAuthProvider.GoogleConfig.Exchange(oauth2.NoContext, code)
ctx := context.Background()
oauth2Token, err := oauth.OAuthProviders.GoogleConfig.Exchange(ctx, code)
if err != nil {
return user, fmt.Errorf("invalid google exchange code: %s", err.Error())
}
client := oauth.OAuthProvider.GoogleConfig.Client(oauth2.NoContext, token)
response, err := client.Get(constants.GoogleUserInfoURL)
if err != nil {
return user, err
verifier := oauth.OIDCProviders.GoogleOIDC.Verifier(&oidc.Config{ClientID: oauth.OAuthProviders.GoogleConfig.ClientID})
// Extract the ID Token from OAuth2 token.
rawIDToken, ok := oauth2Token.Extra("id_token").(string)
if !ok {
return user, fmt.Errorf("unable to extract id_token")
}
defer response.Body.Close()
body, err := ioutil.ReadAll(response.Body)
// Parse and verify ID Token payload.
idToken, err := verifier.Verify(ctx, rawIDToken)
if err != nil {
return user, fmt.Errorf("failed to read google response body: %s", err.Error())
return user, fmt.Errorf("unable to verify id_token:", err.Error())
}
userRawData := make(map[string]string)
json.Unmarshal(body, &userRawData)
// Extract custom claims
var claims struct {
Email string `json:"email"`
Picture string `json:"picture"`
GivenName string `json:"given_name"`
FamilyName string `json:"family_name"`
Verified bool `json:"email_verified"`
}
if err := idToken.Claims(&claims); err != nil {
return user, fmt.Errorf("unable to extract claims")
}
user = db.User{
FirstName: userRawData["given_name"],
LastName: userRawData["family_name"],
Image: userRawData["picture"],
Email: userRawData["email"],
FirstName: claims.GivenName,
LastName: claims.FamilyName,
Image: claims.Picture,
Email: claims.Email,
EmailVerifiedAt: time.Now().Unix(),
}
@@ -53,7 +68,7 @@ func processGoogleUserInfo(code string) (db.User, error) {
func processGithubUserInfo(code string) (db.User, error) {
user := db.User{}
token, err := oauth.OAuthProvider.GithubConfig.Exchange(oauth2.NoContext, code)
token, err := oauth.OAuthProviders.GithubConfig.Exchange(oauth2.NoContext, code)
if err != nil {
return user, fmt.Errorf("invalid github exchange code: %s", err.Error())
}
@@ -102,7 +117,7 @@ func processGithubUserInfo(code string) (db.User, error) {
func processFacebookUserInfo(code string) (db.User, error) {
user := db.User{}
token, err := oauth.OAuthProvider.FacebookConfig.Exchange(oauth2.NoContext, code)
token, err := oauth.OAuthProviders.FacebookConfig.Exchange(oauth2.NoContext, code)
if err != nil {
return user, fmt.Errorf("invalid facebook exchange code: %s", err.Error())
}