6.3 KiB
6.3 KiB
id | challengeType | forumTopicId | title |
---|---|---|---|
58966a17f9fc0f352b528e6d | 2 | 301561 | 注册新用户 |
Description
现在我们需要为新用户添加注册帐号的功能,首先我们需要在主页的 res.render 接收的变量对象中添加 showRegistration: true
。此时刷新页面,你会看到页面上已经显示了我们在 index.pug 文件中定义的注册表单。这个表单设置了请求路径 /register,并将请求方法设置成 POST,所以我们需要在服务器接受 POST 请求,且在数据库中创建用户对象。
用户注册的逻辑如下:注册新用户 > 认证新用户 > 重定向到 /profile。
对于步骤一的注册新用户,详细逻辑如下:用 findOne 命令查询数据库 > 如果返回了用户对象,则表示用户存在,然后返回主页;如果用户未定义且没有报错,则会将包含用户名和密码的用户对象通过 insertOne
添加到数据库,只要没有报错则会继续下一步:认证新用户——我们已经在 /login 路由的 POST 请求中写好了这部分逻辑。
app.route('/register')
.post((req, res, next) => {
myDataBase.findOne({ username: req.body.username }, function(err, user) {
if (err) {
next(err);
} else if (user) {
res.redirect('/');
} else {
myDataBase.insertOne({
username: req.body.username,
password: req.body.password
},
(err, doc) => {
if (err) {
res.redirect('/');
} else {
// The inserted document is held within
// the ops property of the doc
next(null, doc.ops[0]);
}
}
)
}
})
},
passport.authenticate('local', { failureRedirect: '/' }),
(req, res, next) => {
res.redirect('/profile');
}
);
完成上述要求后,你可以在下方提交你的页面链接。如果你遇到了问题,可以参考 这里 的答案。
**注意:**接下来的挑战可能会在运行 picture-in-picture(画中画)模式的浏览器中出现问题。如果你使用的线上 IDE 提供在 IDE 内预览 app 的功能,请考虑打开新的标签页预览。
Instructions
Tests
tests:
- text: 注册路由和显示主页。
testString: "getUserInput => $.get(getUserInput('url')+ '/_api/server.js') .then(data => { assert.match(data, /showRegistration:( |)true/gi, 'You should be passing the variable showRegistration as true to your render function for the homepage'); assert.match(data, /register[^]*post[^]*findOne[^]*username:( |)req.body.username/gi, 'You should have a route accepted a post request on register that querys the db with findone and the query being username: req.body.username'); }, xhr => { throw new Error(xhr.statusText); })"
- text: 注册功能应可以正常运行。
testString: "async getUserInput => {
const url = getUserInput('url');
const user = `freeCodeCampTester${Date.now()}`;
const xhttp=new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
test(this);
} else {
throw new Error(`${this.status} ${this.statusText}`);
}
};
xhttp.open('POST', url+'/register', true);
xhttp.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
xhttp.send(`username=${user}&password=${user}`);
function test(xhttpRes) {
const data = xhttpRes.responseText;
assert.match(data, /Profile/gi, 'Register should work, and redirect successfully to the profile.');
}
}
"
- text: 登录功能应可以正常运行。
testString: "async getUserInput => {
const url = getUserInput('url');
const user = `freeCodeCampTester${Date.now()}`;
const xhttpReg = new XMLHttpRequest();
xhttpReg.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
login();
} else {
throw new Error(`${this.status} ${this.statusText}`);
}
};
xhttpReg.open('POST', url+'/register', true);
xhttpReg.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
xhttpReg.send(`username=${user}&password=${user}`);
function login() {
const xhttp=new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (this.readyState == 4 && this.status == 200) {
test(this);
} else {
throw new Error(`${this.status} ${this.statusText}`);
}
};
xhttp.open('POST', url+'/login', true);
xhttp.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
xhttp.send(`username=${user}&password=${user}`);
}
function test(xhttpRes) {
const data = xhttpRes.responseText;
assert.match(data, /Profile/gi, 'Login should work if previous test was done successfully and redirect successfully to the profile.');
assert.match(data, new RegExp(user, 'g'), 'The profile should properly display the welcome to the user logged in');
}
}
"
- text: 退出登录功能应可以正常运行。
testString: "getUserInput => $.ajax({url: getUserInput('url')+ '/logout', type: 'GET', xhrFields: { withCredentials: true }}) .then(data => { assert.match(data, /Home/gi, 'Logout should redirect to home'); }, xhr => { throw new Error(xhr.statusText); })"
- text: 退出登录后,profile 页面应无法访问。
testString: "getUserInput => $.ajax({url: getUserInput('url')+ '/profile', type: 'GET', crossDomain: true, xhrFields: { withCredentials: true }}) .then(data => { assert.match(data, /Home/gi, 'Profile should redirect to home when we are logged out now again'); }, xhr => { throw new Error(xhr.statusText); })"
Challenge Seed
Solution
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