本文件說明如何使用 Firebase Admin SDK 透過程式管理多重驗證使用者。與單一因素使用者相比,管理多重驗證使用者時,您可以存取更多範圍的使用者屬性。
事前準備
安裝 Node.js Admin SDK。目前不支援其他 Admin SDK 語言。
取得使用者
您可以從 UserRecord
物件擷取使用者的多重要素相關資料,例如已註冊的第二因素清單。如要取得使用者記錄,請呼叫 getUser()
或 getUserByEmail()
。
以下範例顯示已註冊多重驗證的使用者:
// console.log(userRecord.toJSON());
{
uid: 'some-uid',
displayName: 'John Doe',
email: 'johndoe@gmail.com',
photoURL: 'http://www.example.com/12345678/photo.png',
emailVerified: true,
phoneNumber: '+11234567890',
// Set this user as admin.
customClaims: {admin: true},
// User with Google provider.
providerData: [{
uid: 'google-uid',
email: 'johndoe@gmail.com',
displayName: 'John Doe',
photoURL: 'http://www.example.com/12345678/photo.png',
providerId: 'google.com'
}],
multiFactor: {
enrolledFactors: [
// 2FA with SMS as 2nd factor.
{
uid: '53HG4HG45HG8G04GJ40J4G3J',
phoneNumber: '+16505551234',
displayName: 'Work phone',
enrollmentTime: 'Fri, 22 Sep 2017 01:49:58 GMT',
factorId: 'phone',
},
],
},
};
列出使用者
以下程式碼說明如何列出所有使用者,並檢查他們是否已註冊次要因素:
admin.auth().listUsers(1000, nextPageToken)
.then((listUsersResult) => {
listUsersResult.users.forEach((userRecord) => {
// Multi-factor enrolled users second factors can be retrieved via:
if (userRecord.multiFactor) {
userRecord.multiFactor.enrolledFactors.forEach((enrolledFactor) => {
console.log(userRecord.uid, enrolledFactor.toJSON());
});
}
});
})
.catch((error) => {
console.log('Error listing users:', error);
});
系統會以批次傳回使用者,並依照 uid
排序。每個結果批次都包含使用者清單,以及用於擷取下一批次的下一頁權杖。列出所有使用者後,系統不會傳回 pageToken
。
maxResult
欄位會指定批次大小上限。預設值和最大值為 1000。
建立使用者
呼叫 createUser()
即可建立新使用者。使用次要因素的新使用者必須擁有已驗證的電子郵件地址 (將 emailVerified
設為 true
),並使用支援的第一個因素登入。每位使用者最多可設定 5 個次要驗證因素。
以下範例說明如何使用 2 個次要因素建立新使用者:
admin.auth().createUser({
uid: '123456789',
email: 'user@example.com',
emailVerified: true,
password: 'password',
multiFactor: {
enrolledFactors: [
// When creating users with phone second factors, the uid and
// enrollmentTime should not be specified. These will be provisioned by
// the Auth server.
// Primary second factor.
{
phoneNumber: '+16505550001',
displayName: 'Corp phone',
factorId: 'phone',
},
// Backup second factor.
{
phoneNumber: '+16505550002',
displayName: 'Personal phone',
factorId: 'phone'
},
],
},
})
.then((userRecord) => {
console.log(userRecord.multiFactor.enrolledFactors);
})
.catch((error) => {
console.log(error);
});
更新使用者
如要更新現有使用者,請呼叫 updateUser()
:
admin.auth().updateUser(uid: '123456789', {
multiFactor: {
enrolledFactors: [
{
// uid will be auto-generated.
phoneNumber: '+16505550003',
displayName: 'Spouse\'s phone',
factorId: 'phone',
},
{
// uid can also be specified. This is useful if a new second factor is added and an
// existing enrolled second factor is kept unmodified.
uid: 'existing-enrolled-mfa-uid',
phoneNumber: '+16505550004',
displayName: 'Personal phone',
factorId: 'phone',
},
{
phoneNumber: '+16505550005',
displayName: 'Backup phone',
factorId: 'phone',
// Enrollment time can also be explicitly specified.
enrollmentTime: new Date().toUTCString(),
},
],
},
})
.then((userRecord) => {
console.log(userRecord.multiFactor.enrolledFactors);
})
.catch((error) => {
console.log(error);
});
新增次要因素
使用 enrolledFactors
清單呼叫 updateUser()
會清除使用者目前的所有次要因素。如要新增次要因素並保留現有因素,請先查詢使用者,然後將新因素新增至清單:
function enrollSecondFactor(userId, secondFactorPhoneNumber, secondFactorDisplayName) {
return admin.auth().getUser(userId)
.then((userRecord) => {
const updatedList = (userRecord.multiFactor &&
userRecord.multiFactor.toJSON().enrolledFactors) || [];
updatedList.push({
phoneNumber: secondFactorPhoneNumber,
displayName: secondFactorDisplayName,
factorId: 'phone',
});
return admin.auth().updateUser(userRecord.uid, {
multiFactor: {
enrolledFactors: updatedList,
},
});
})
.catch((error) => {
console.log(error);
});
}
移除次要驗證方式
如要完全取消使用者註冊多重驗證,請將 enrolledFactors
設為 null
或空陣列:
admin.auth().updateUser(uid: '123456789', {
multiFactor: {
enrolledFactors: null,
},
})
.then((userRecord) => {
console.log(userRecord.multiFactor);
})
.catch((error) => {
console.log(error);
});