我正在尝试使用 facebook 身份验证创建一个登录页面，它工作正常，但下次我收到此消息时，该消息似乎来自他们这边，但即使几个月后它也不起作用。这里可能有什么问题？ Here 是错误的屏幕截图。
require('dotenv').config();
const express = require("express");
const bodyParser = require("body-parser");
const ejs = require("ejs");
const mongoose = require("mongoose");
const session = require('express-session');
const _ = require("lodash");
const passport = require("passport");
const passportLocalMongoose = require("passport-local-mongoose");
const GoogleStrategy = require('passport-google-oauth20').Strategy;
const FacebookStrategy = require('passport-facebook').Strategy;
const findOrCreate = require('mongoose-findorcreate');
const homeStartingContent = "Lacus vel facilisis volutpat est velit egestas dui id ornare. Semper auctor neque vitae tempus quam. Sit amet cursus sit amet dictum sit amet justo. Viverra tellus in hac habitasse. Imperdiet proin fermentum leo vel orci porta. Donec ultrices tincidunt arcu non sodales neque sodales ut. Mattis molestie a iaculis at erat pellentesque adipiscing. Magnis dis parturient montes nascetur ridiculus mus mauris vitae ultricies. Adipiscing elit ut aliquam purus sit amet luctus venenatis lectus. Ultrices vitae auctor eu augue ut lectus arcu bibendum at. Odio euismod lacinia at quis risus sed vulputate odio ut. Cursus mattis molestie a iaculis at erat pellentesque adipiscing.";
const aboutContent = "Hac habitasse platea dictumst vestibulum rhoncus est pellentesque. Dictumst vestibulum rhoncus est pellentesque elit ullamcorper. Non diam phasellus vestibulum lorem sed. Platea dictumst quisque sagittis purus sit. Egestas sed sed risus pretium quam vulputate dignissim suspendisse. Mauris in aliquam sem fringilla. Semper risus in hendrerit gravida rutrum quisque non tellus orci. Amet massa vitae tortor condimentum lacinia quis vel eros. Enim ut tellus elementum sagittis vitae. Mauris ultrices eros in cursus turpis massa tincidunt dui.";
const contactContent = "Scelerisque eleifend donec pretium vulputate sapien. Rhoncus urna neque viverra justo nec ultrices. Arcu dui vivamus arcu felis bibendum. Consectetur adipiscing elit duis tristique. Risus viverra adipiscing at in tellus integer feugiat. Sapien nec sagittis aliquam malesuada bibendum arcu vitae. Consequat interdum varius sit amet mattis. Iaculis nunc sed augue lacus. Interdum posuere lorem ipsum dolor sit amet consectetur adipiscing elit. Pulvinar elementum integer enim neque. Ultrices gravida dictum fusce ut placerat orci nulla. Mauris in aliquam sem fringilla ut morbi tincidunt. Tortor posuere ac ut consequat semper viverra nam libero.";
const app = express();
app.use(express.static(__dirname + "/public"));
app.set('view engine', 'ejs');
var profileName;
app.use(bodyParser.urlencoded({
extended: true
}));
app.use(session({
secret: "Our little secret.",
resave: false,
saveUninitialized: false
}));
app.use(passport.initialize());
app.use(passport.session());
mongoose.connect("mongodb+srv://paritosh_dalai:Jinu1606@cluster0.mjxiq.mongodb.net/blogDB", {
useNewUrlParser: true,
useUnifiedTopology: true,
useCreateIndex: true
});
const postSchema = {
title: String,
content: String,
name: String
};
const userSchema = new mongoose.Schema({
name: String,
email: String,
password: String,
googleId: String,
facebookId: String
});
userSchema.plugin(passportLocalMongoose);
userSchema.plugin(findOrCreate);
const User = new mongoose.model("User", userSchema);
const Post = mongoose.model("Post", postSchema);
passport.use(User.createStrategy());
passport.serializeUser(function(user, done) {
done(null, user.id);
});
passport.deserializeUser(function(id, done) {
User.findById(id, function(err, user) {
done(err, user);
});
});
passport.use(new GoogleStrategy({
clientID: "process.env.GOOGLE_CLIENT_ID",
clientSecret: "process.env.GOOGLE_CLIENT_SECRET",
callbackURL: "http://localhost:3000/auth/google/blog",
userProfileURL: "https://www.googleapis.com/oauth2/v3/userinfo"
},
function(accessToken, refreshToken, profile, cb) {
profileName=profile.displayName;
User.findOrCreate({
googleId: profile.id,
name: profile.displayName
}, function(err, user) {
return cb(err, user);
});
}
));
passport.use(new FacebookStrategy({
clientID: "process.env.FACEBOOK_APP_ID",
clientSecret: "process.env.FACEBOOK_APP_SECRET",
callbackURL: "http://localhost:3000/auth/facebook/blog"
},
function(accessToken, refreshToken, profile, cb) {
profileName = profile.displayName;
User.findOrCreate({
facebookId: profile.id,
name: profile.displayName
}, function(err, user) {
return cb(err, user);
});
}
));
app.get("/auth/google",
passport.authenticate('google', {
scope: ["profile"]
})
);
app.get("/auth/google/blog",
passport.authenticate('google', {
failureRedirect: "/"
}),
function(req, res) {
res.redirect("/blog");
});
app.get('/auth/facebook',
passport.authenticate('facebook',{
scope:["profile"]
})
);
app.get('/auth/facebook/blog',
passport.authenticate('facebook', {
failureRedirect: '/'
}),
function(req, res) {
// Successful authentication, redirect home.
res.redirect('/blog');
});
app.get("/", function(req, res) {
res.render("home");
});
app.get("/blog", function(req, res) {
Post.find({}, function(err, posts) {
res.render("blog", {
startingContent: homeStartingContent,
posts: posts
});
});
});
app.get('/logout', function(req, res){
req.logout();
req.session.destroy();
res.redirect('/');
});
app.get("/compose", function(req, res) {
if (req.isAuthenticated()) {
res.render("compose");
} else {
res.redirect("/");
}
});
// app.get("/profile", function(req,res){
// if(req.isAuthenticated()){
// res.render("profile",{
// profileName: profileName
// });
// }else{
// res.redirect("/");
// }
// })
app.post("/compose", function(req, res) {
const post = new Post({
title: req.body.postTitle,
content: req.body.postBody,
name: profileName
});
post.save(function(err) {
if (!err) {
res.redirect("/blog");
}
});
});
app.get("/posts/:postId", function(req, res) {
const requestedPostId = req.params.postId;
Post.findOne({
_id: requestedPostId
}, function(err, post) {
res.render("post", {
title: post.title,
content: post.content,
name: post.name
});
});
});
app.get("/about", function(req, res) {
res.render("about", {
aboutContent: aboutContent
});
});
app.get("/contact", function(req, res) {
res.render("contact", {
contactContent: contactContent
});
});
app.listen(process.env.PORT || 3000, function() {
console.log("Server started on port 3000");
});
我的控制台或任何地方都没有出现任何错误。当我第一次进行身份验证时它工作得很好，但下次我尝试时它根本不起作用。
答案 0 :(得分：0)
转到管理 Facebook 应用程序的页面（您，管理员必须登录）：https://developers.facebook.com/apps/
将鼠标悬停在包含您的实时 Facebook 应用程序的块上，然后单击出现在右上角的向下箭头按钮。然后从菜单中选择创建测试应用程序。
创建 Facebook 测试应用
将使用生产应用设置的快照创建测试应用。在此之后，您可以独立编辑测试应用的设置，而不会影响您的生产应用。
请参阅此处的文档：https://developers.facebook.com/docs/apps/test-apps/
关于其余设置：
将您的应用程序保持在开发模式转到“设置”->“基本”（左侧菜单）并为应用程序域输入“localhost”，将您的站点 URL 更改为 localhost 版本（例如 http://localhost:3000/users/auth /脸书）
这是为了测试 localhost 上的 fb 登录
答案 1 :(得分：0)
尝试相应地比较和编辑您的代码，或者您可以将其复制到新的 app.js 中并尝试运行它，但请记住事先备份旧的 app.js 并将其保存在其他地方。而且您仍然需要在 facebook 开发人员中进行适当的设置才能使其运行。
//jshint esversion:6
require('dotenv').config()
const express = require("express");
const bodyParser = require("body-parser");
const ejs = require("ejs");
const mongoose = require("mongoose");
const session = require("express-session");
const passport = require("passport");
const passportLocalMongoose = require("passport-local-mongoose");
const GoogleStrategy = require('passport-google-oauth20').Strategy;
const findOrCreate = require('mongoose-findorcreate');
const FacebookStrategy = require("passport-facebook");
const app = express();
app.use(bodyParser.urlencoded({extended: true}));
app.set("view engine", "ejs");
app.use(express.static("public"));
app.use(session({
secret: "This is the secret key",
resave: false,
saveUninitialized: false
}));
app.use(passport.initialize());
app.use(passport.session());
mongoose.connect("mongodb://localhost:27017/userDB", {useNewUrlParser: true, useUnifiedTopology: true});
mongoose.set('useCreateIndex', true);
const userSchema = new mongoose.Schema({
email: String,
password: String,
googleId: String,
facebookId: String,
secret: String
});
userSchema.plugin(passportLocalMongoose);
userSchema.plugin(findOrCreate);
const User = new mongoose.model("User", userSchema);
passport.use(User.createStrategy());
passport.serializeUser(function(user, done) {
done(null, user.id);
});
passport.deserializeUser(function(id, done) {
User.findById(id, function(err, user) {
done(err, user);
});
});
passport.use(new GoogleStrategy({
clientID: process.env.CLIENT_ID,
clientSecret: process.env.CLIENT_SECRET,
callbackURL: "http://localhost:3000/auth/google/secrets"
},
function(accessToken, refreshToken, profile, cb) {
// console.log(profile);
User.findOrCreate({ googleId: profile.id }, function (err, user) {
return cb(err, user);
});
}
));
passport.use(new FacebookStrategy({
clientID: process.env.FACEBOOK_APP_ID,
clientSecret: process.env.FACEBOOK_APP_SECRET,
callbackURL: "http://localhost:3000/auth/facebook/secrets"
},
function(accessToken, refreshToken, profile, cb) {
// console.log(profile);
User.findOrCreate({ facebookId: profile.id }, function (err, user) {
return cb(err, user);
});
}
));
app.get("/", function(req, res) {
res.render("home");
});
app.get('/auth/google',
passport.authenticate('google', { scope: ['profile'] }));
app.get('/auth/google/secrets',
passport.authenticate('google', { failureRedirect: '/login' }),
function(req, res) {
// Successful authentication, redirect home.
res.redirect('/secrets');
});
app.get('/auth/facebook',
passport.authenticate('facebook', { scope: ['public_profile'] }));
app.get('/auth/facebook/secrets',
passport.authenticate('facebook', { failureRedirect: '/login' }),
function(req, res) {
// Successful authentication, redirect home.
res.redirect('/secrets');
});
app.get("/login", function(req, res) {
res.render("login");
});
app.get("/register", function(req, res) {
res.render("register");
});
app.get("/secrets", function(req, res) {
// if(req.isAuthenticated()) {
// res.render("secrets");
// } else {
// res.redirect("/login");
// }
User.find({"secret": {$ne: null}}, function(err, foundUsers) {
if(err) {
console.log(err);
} else {
if (foundUsers) {
res.render("secrets", {usersWithSecrets: foundUsers});
}
}
});
});
app.get("/submit", function(req, res) {
if(req.isAuthenticated()) {
res.render("submit");
} else {
res.redirect("/login");
}
});
app.post("/submit", function(req, res) {
const submittedSecret = req.body.secret;
console.log(req.user.id);
User.findById(req.user.id, function(err, foundUser) {
if(err) {
console.log(err);
} else {
if (foundUser) {
foundUser.secret = submittedSecret;
foundUser.save(function() {
res.redirect("/secrets");
});
}
}
});
});
app.get("/logout", function(req, res) {
req.logout();
res.redirect("/");
});
app.post("/register", function(req, res) {
User.register({username: req.body.username}, req.body.password, function(err, user) {
if(err) {
console.log(err);
res.redirect("/register");
} else {
passport.authenticate("local")(req, res, function() {
res.redirect("/secrets");
});
}
});
});
app.post("/login", function(req, res) {
const user = new User({
username: req.body.username,
password: req.body.password
});
req.login(user, function(err) {
if(err) {
console.log(err);
} else {
passport.authenticate("local")(req, res, function() {
res.redirect("/secrets");
});
}
});
});
app.listen(3000, function() {
console.log("Server is running on port 3000");
});