此代碼用于驗證 Firebase 身份驗證。首先，它檢查 req.headers。然后從令牌中檢索 uid。收到decodedToken.uid后，代碼會與自己的MySQL資料庫進行核對，獲取用戶使用getID(uid)函式的id。如果 uid 不在資料庫中，它將使用函式創建一個新用戶makeNewUser()。執行時，代碼回傳“等待僅在異步函式和模塊的頂層主體中有效”的錯誤。我怎樣才能解決這個問題？我應該創建一個新檔案來處理這些東西，并且該代碼的回傳應該存盤在 res.locals 中嗎？這是代碼。
const admin = require('./config/firebaseAuth'); // import admin from firebase initializeApp
const getId = require('../utils/getUserID'); // module to get userId form MySQL database
const makeNewUser = require('../utils/makeNewUser'); // module to make a new user into MySQL database
class Middleware {
async decodeToken(req,res,next) {
// get authorization from the headers
const { authorization } = req.headers;
// check if the authorization headers are well configured
// this includes checking if headers.authorization exist
// then if the format in headers.authorization matches with the configured
if (!authorization) return res.status(403).json({
status: 'fail',
type: 'server/missing-authorization',
message: 'Missing req.headers.authorization on request to the server. This is need for authorization!'
})
else if (!authorization.startWith('Bearer')) return res.status(400).json({
status: 'fail',
type: 'server/missing-bearer',
message: 'Missing Bearer in req.headers.authorization on request to the server. This is needed to extract the token!'
})
else if (authorization.split(' ').length !== 2) return res.status(400).json({
status: 'fail',
type: 'server/bearer-unrecognized',
message: 'Bearer in req.headers.authorization is not well configured. This is need to extract the token!'
})
// after passing the authorization header checks, now checks the token
const token = authorization.split(' ')[1]; // req.headers = {"Bearer $.token"}
admin.auth().verifyIdToken(token)
.then((decodedToken) => {
const {uid, name} = decodedToken; // get uid and name from the token
try {
// !this produces an error: await is only valid in async functions and the top level bodies of modules
const result = await getId(uid); // getId to get the id of the user regarding the uid
// check if exist uid in the database
if (result.length < 1) {
// if not make a new user
const result = await makeNewUser(uid, name); // make new user from the given uid and name
const id = result.insertId; // get the id of the new user
req.user = {id: id, name: name}; // set id and name to req.user
return next();
}
const id = result[0].id; // getId to get the id of the user from the result query since uid exist
req.user = {id: id, name: name}; // set id and name to req.user
return next();
} catch (err) {
return res.status(500).json({
status: 'fail',
type: 'database/fail-to-query',
message: err.message
})
}
})
.catch((err) => {
/*
on err for firebase tokens, such as sent was FMC token instead of id token or token has expired and many others!
err response: after executing console.log(err)
{
errorInfo: {
code: 'auth/argument-error',
message: 'Decoding Firebase ID token failed. Make sure you passed the entire string JWT which represents an ID token. See https://firebase.google.com/docs/auth/admin/verify-id-tokens for details on how to retrieve an ID token.'
},
codePrefix: 'auth'
}
or
{
errorInfo: {
code: 'auth/id-token-expired',
message: 'Firebase ID token has expired. Get a fresh ID token from your client app and try again (auth/id-token-expired). See https://firebase.google.com/docs/auth/admin/verify-id-tokens for details on how to retrieve an ID token.'
},
codePrefix: 'auth'
}
*/
if (err.errorInfo.code === 'auth/internal-error') var statusCode = 500;
else var statusCode = 400;
return res.status(statusCode).json({status: "fail", type: err.errorInfo.code, message: err.errorInfo.message}); // return with status codes
})
}
}
module.exports = new Middleware();
注意：getId 和 makeNewUser 回傳一個承諾！
uj5u.com熱心網友回復：
用這個
const admin = require('./config/firebaseAuth'); // import admin from firebase initializeApp
const getId = require('../utils/getUserID'); // module to get userId form MySQL database
const makeNewUser = require('../utils/makeNewUser'); // module to make a new user into MySQL database
class Middleware {
async decodeToken(req,res,next) {
// get authorization from the headers
const { authorization } = req.headers;
// check if the authorization headers are well configured
// this includes checking if headers.authorization exist
// then if the format in headers.authorization matches with the configured
if (!authorization) return res.status(403).json({
status: 'fail',
type: 'server/missing-authorization',
message: 'Missing req.headers.authorization on request to the server. This is need for authorization!'
})
else if (!authorization.startWith('Bearer')) return res.status(400).json({
status: 'fail',
type: 'server/missing-bearer',
message: 'Missing Bearer in req.headers.authorization on request to the server. This is needed to extract the token!'
})
else if (authorization.split(' ').length !== 2) return res.status(400).json({
status: 'fail',
type: 'server/bearer-unrecognized',
message: 'Bearer in req.headers.authorization is not well configured. This is need to extract the token!'
})
// after passing the authorization header checks, now checks the token
const token = authorization.split(' ')[1]; // req.headers = {"Bearer $.token"}
admin.auth().verifyIdToken(token)
.then( async (decodedToken) => {
const {uid, name} = decodedToken; // get uid and name from the token
try {
// !this produces an error: await is only valid in async functions and the top level bodies of modules
const result = await getId(uid); // getId to get the id of the user regarding the uid
// check if exist uid in the database
if (result.length < 1) {
// if not make a new user
const result = await makeNewUser(uid, name); // make new user from the given uid and name
const id = result.insertId; // get the id of the new user
req.user = {id: id, name: name}; // set id and name to req.user
return next();
}
const id = result[0].id; // getId to get the id of the user from the result query since uid exist
req.user = {id: id, name: name}; // set id and name to req.user
return next();
} catch (err) {
return res.status(500).json({
status: 'fail',
type: 'database/fail-to-query',
message: err.message
})
}
})
.catch((err) => {
/*
on err for firebase tokens, such as sent was FMC token instead of id token or token has expired and many others!
err response: after executing console.log(err)
{
errorInfo: {
code: 'auth/argument-error',
message: 'Decoding Firebase ID token failed. Make sure you passed the entire string JWT which represents an ID token. See https://firebase.google.com/docs/auth/admin/verify-id-tokens for details on how to retrieve an ID token.'
},
codePrefix: 'auth'
}
or
{
errorInfo: {
code: 'auth/id-token-expired',
message: 'Firebase ID token has expired. Get a fresh ID token from your client app and try again (auth/id-token-expired). See https://firebase.google.com/docs/auth/admin/verify-id-tokens for details on how to retrieve an ID token.'
},
codePrefix: 'auth'
}
*/
if (err.errorInfo.code === 'auth/internal-error') var statusCode = 500;
else var statusCode = 400;
return res.status(statusCode).json({status: "fail", type: err.errorInfo.code, message: err.errorInfo.message}); // return with status codes
})
}
}
module.exports = new Middleware();
轉載請註明出處，本文鏈接：https://www.uj5u.com/houduan/475752.html
標籤：javascript 节点.js 火力基地 表示 异步等待