fix: use raw base64 url decoding

app/package.json

@@ -1,29 +1,29 @@
 {
-	"name": "app",
-	"version": "1.0.0",
-	"description": "",
-	"main": "index.js",
-	"scripts": {
-		"build": "rm -rf build && NODE_ENV=production node ./esbuild.config.js",
-		"start": "NODE_ENV=development node ./esbuild.config.js"
-	},
-	"keywords": [],
-	"author": "Lakhan Samani",
-	"license": "ISC",
-	"dependencies": {
-		"@authorizerdev/authorizer-react": "^0.24.0-beta.1",
-		"@types/react": "^17.0.15",
-		"@types/react-dom": "^17.0.9",
-		"esbuild": "^0.12.17",
-		"react": "^17.0.2",
-		"react-dom": "^17.0.2",
-		"react-is": "^17.0.2",
-		"react-router-dom": "^5.2.0",
-		"typescript": "^4.3.5",
-		"styled-components": "^5.3.0"
-	},
-	"devDependencies": {
-		"@types/react-router-dom": "^5.1.8",
-		"@types/styled-components": "^5.1.11"
-	}
+  "name": "app",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "build": "rm -rf build && NODE_ENV=production node ./esbuild.config.js",
+    "start": "NODE_ENV=development node ./esbuild.config.js"
+  },
+  "keywords": [],
+  "author": "Lakhan Samani",
+  "license": "ISC",
+  "dependencies": {
+    "@authorizerdev/authorizer-react": "^0.24.0-beta.2",
+    "@types/react": "^17.0.15",
+    "@types/react-dom": "^17.0.9",
+    "esbuild": "^0.12.17",
+    "react": "^17.0.2",
+    "react-dom": "^17.0.2",
+    "react-is": "^17.0.2",
+    "react-router-dom": "^5.2.0",
+    "typescript": "^4.3.5",
+    "styled-components": "^5.3.0"
+  },
+  "devDependencies": {
+    "@types/react-router-dom": "^5.1.8",
+    "@types/styled-components": "^5.1.11"
+  }
 }

server/handlers/oauth_callback.go

@@ -2,6 +2,7 @@ package handlers
 
 import (
 	"context"
+	"encoding/base64"
 	"encoding/json"
 	"fmt"
 	"io/ioutil"
@@ -17,7 +18,6 @@ import (
 
 	"github.com/authorizerdev/authorizer/server/constants"
 	"github.com/authorizerdev/authorizer/server/cookie"
-	"github.com/authorizerdev/authorizer/server/crypto"
 	"github.com/authorizerdev/authorizer/server/db"
 	"github.com/authorizerdev/authorizer/server/db/models"
 	"github.com/authorizerdev/authorizer/server/memorystore"
@@ -456,12 +456,15 @@ func processLinkedInUserInfo(code string) (models.User, error) {
 
 func processAppleUserInfo(code string) (models.User, error) {
 	user := models.User{}
+	fmt.Println("=> code:", code)
 	oauth2Token, err := oauth.OAuthProviders.AppleConfig.Exchange(oauth2.NoContext, code)
 	if err != nil {
 		log.Debug("Failed to exchange code for token: ", err)
 		return user, fmt.Errorf("invalid apple exchange code: %s", err.Error())
 	}
 
+	fmt.Println("=> oauth2Token:", oauth2Token)
+
 	// Extract the ID Token from OAuth2 token.
 	rawIDToken, ok := oauth2Token.Extra("id_token").(string)
 	if !ok {
@@ -471,19 +474,23 @@ func processAppleUserInfo(code string) (models.User, error) {
 
 	tokenSplit := strings.Split(rawIDToken, ".")
 	claimsData := tokenSplit[1]
-	decodedClaimsData, err := crypto.DecryptB64(claimsData)
+	decodedClaimsData, err := base64.RawURLEncoding.DecodeString(claimsData)
 	if err != nil {
-		log.Debug("Failed to decrypt claims data: ", err)
+		log.Debugf("Failed to decrypt claims %s: %s", claimsData, err.Error())
 		return user, fmt.Errorf("failed to decrypt claims data: %s", err.Error())
 	}
 
+	fmt.Println("=> decodedClaimsData:", string(decodedClaimsData))
+
 	claims := make(map[string]interface{})
-	err = json.Unmarshal([]byte(decodedClaimsData), &claims)
+	err = json.Unmarshal(decodedClaimsData, &claims)
 	if err != nil {
 		log.Debug("Failed to unmarshal claims data: ", err)
 		return user, fmt.Errorf("failed to unmarshal claims data: %s", err.Error())
 	}
 
+	fmt.Println("=> claims:", claims)
+
 	if val, ok := claims["email"]; !ok {
 		log.Debug("Failed to extract email from claims.")
 		return user, fmt.Errorf("unable to extract email, please check the scopes enabled for your app. It needs `email`, `name` scopes")