Javascript FirstName LastName验证错误
我已经从wikihow＆amp;中复制了这个.js代码github用于验证注册表单上的用户输入。原始表单没有名字＆amp; 姓氏。所以我修改了它。但现在它只适用于第一个用户输入的空值。但对于其他人来说，它一直在显示
输入正确的密码后即可'密码必须包含至少一个数字，一个小写和一个 大写字母。请再试一次'
。对于其他错误输入，它会一直显示
'您的密码和确认不符。请再试一次'
我尝试添加if else条件但是在netbean IDE中显示错误。她是javacode：
function formhash(form, password) {
// Create a new element input, this will be our hashed password field.
var p = document.createElement("input");
// Add the new element to our form.
form.appendChild(p);
p.name = "p";
p.type = "hidden";
p.value = hex_sha512(password.value);
// Make sure the plaintext password doesn't get sent.
password.value = "";
// Finally submit the form.
form.submit();
}
function regformhash(form, uid, email, firstname, lastname, password, conf) {
// Check each field has a value
if (uid.value === '' || email.value === '' || firstname.value === '' || lastname.value === '' || password.value === '' || conf.value === '') {
alert('You must provide all the requested details. Please try again');
return false;
}
// Check the username
var re = /^\w+$/;
if (!re.test(form.username.value)) {
alert("Username must contain only letters, numbers and underscores. Please try again");
form.username.focus();
return false;
}
// Check the first name only letters
var res = /^[a-zA-Z]+$/;
if(!res.test(form.firstname.value)) {
alert("firstname must contain only letters. Please try again");
form.firstname.focus();
return false;
}
// Check the last name only letters
var ree = /^[a-zA-Z]+$/;
if(!ree.test(form.lastname.value)) {
alert("lastname must contain only letters. Please try again");
form.lastname.focus();
return false;
}
// Check that the password is sufficiently long (min 6 chars)
// The check is duplicated below, but this is included to give more
// specific guidance to the user
if (password.value.length < 6) {
alert('Passwords must be at least 6 characters long. Please try again');
form.password.focus();
return false;
}
// At least one number, one lowercase and one uppercase letter
// At least six characters
var rek = /(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{6,}/;
if (!rek.test(password.value)) {
alert('Passwords must contain at least one number, one lowercase and one uppercase letter. Please try again');
form.password.focus();
return false;
}
// Check password and confirmation are the same
if (password.value !== conf.value) {
alert('Your password and confirmation do not match. Please try again');
form.password.focus();
return false;
}
// Create a new element input, this will be our hashed password field.
var p = document.createElement("input");
// Add the new element to our form.
form.appendChild(p);
p.name = "p";
p.type = "hidden";
p.value = hex_sha512(password.value);
// Make sure the plaintext password doesn't get sent.
password.value = "";
conf.value = "";
// Finally submit the form.
form.submit();
return true;
}
HTML + PHP部分：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Secure Login: Registration Form</title>
<script type="text/JavaScript" src="js/sha512.js"></script>
<script type="text/JavaScript" src="js/forms.js"></script>
<link rel="stylesheet" href="styles/main.css" />
</head>
<body>
<!-- Registration form to be output if the POST variables are not
set or if the registration script caused an error. -->
<h1>Register with us</h1>
<?php
if (!empty($error_msg)) {
echo $error_msg;
}
?>
<ul>
<li>Usernames may contain only digits, upper and lower case letters and underscores</li>
<li>Emails must have a valid email format</li>
<li>Passwords must be at least 6 characters long</li>
<li>Passwords must contain
<ul>
<li>At least one upper case letter (A..Z)</li>
<li>At least one lower case letter (a..z)</li>
<li>At least one number (0..9)</li>
</ul>
</li>
<li>Your password and confirmation must match exactly</li>
</ul>
<form method="post" name="registration_form" action="<?php echo esc_url($_SERVER['PHP_SELF']); ?>">
Username: <input type='text' name='username' id='username' /><br>
Email: <input type="text" name="email" id="email" /><br>
First Name: <input type="text" name="firstname" id="firstname" /><br>
Last Name: <input type="text" name="lastname" id="lastname" /><br>
Password: <input type="password"
name="password"
id="password"/><br>
Confirm password: <input type="password"
name="confirmpwd"
id="confirmpwd" /><br>
<input type="button"
value="Register"
onclick="return regformhash(this.form,
this.form.username,
this.form.email,
this.form.firstname,
this.form.lastname,
this.form.password,
this.form.confirmpwd);" />
</form>
<p>Return to the <a href="index.php">login page</a>.</p>
</body>
</html>
第二个PHP文件：
<?php
include_once '*****.php';
include_once '*****.php';
$error_msg = "";
if (isset($_POST['username'], $_POST['email'],$_POST['firstname'],$_POST['lastname'], $_POST['p'])) {
// Sanitize and validate the data passed in
$username = filter_input(INPUT_POST, 'username', FILTER_SANITIZE_STRING);
$firstname = filter_input(INPUT_POST, 'firstname', FILTER_SANITIZE_STRING);
$lastname = filter_input(INPUT_POST, 'lastname', FILTER_SANITIZE_STRING);
$email = filter_input(INPUT_POST, 'email', FILTER_SANITIZE_EMAIL);
$email = filter_var($email, FILTER_VALIDATE_EMAIL);
if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
// Not a valid email
$error_msg .= '<p class="error">The email address you entered is not valid</p>';
}
$password = filter_input(INPUT_POST, 'p', FILTER_SANITIZE_STRING);
if (strlen($password) != 128) {
// The hashed pwd should be 128 characters long.
// If it's not, something really odd has happened
$error_msg .= '<p class="error">Invalid password configuration.</p>';
}
// Checking first name & lastname string count
if (strlen($firstname) > 30) {
// If it's not, something really odd has happened
$error_msg .= '<p class="error">First Name should be within 30 Letters</p>';
}
if (strlen($lastname) > 30) {
// If it's not, something really odd has happened
$error_msg .= '<p class="error">Last Name should be within 30 Letters</p>';
}
// Username validity and password validity have been checked client side.
// This should should be adequate as nobody gains any advantage from
// breaking these rules.
//
$prep_stmt = "SELECT user_id FROM **** WHERE email = ? LIMIT 1";
$stmt = $mysqli->prepare($prep_stmt);
// check existing email
if ($stmt) {
$stmt->bind_param('s', $email);
$stmt->execute();
$stmt->store_result();
if ($stmt->num_rows == 1) {
// A user with this email address already exists
$error_msg .= '<p class="error">A user with this email address already exists.</p>';
$stmt->close();
}
} else {
$error_msg .= '<p class="error">Database error Line 39</p>';
$stmt->close();
}
// check existing username
$prep_stmt = "SELECT user_id FROM **** WHERE username = ? LIMIT 1";
$stmt = $mysqli->prepare($prep_stmt);
if ($stmt) {
$stmt->bind_param('s', $username);
$stmt->execute();
$stmt->store_result();
if ($stmt->num_rows == 1) {
// A user with this username already exists
$error_msg .= '<p class="error">A user with this username already exists</p>';
$stmt->close();
}
} else {
$error_msg .= '<p class="error">Database error line 55</p>';
$stmt->close();
}
// TODO:
// We'll also have to account for the situation where the user doesn't have
// rights to do registration, by checking what type of user is attempting to
// perform the operation.
if (empty($error_msg)) {
// Create hashed password using the password_hash function.
// This function salts it with a random salt and can be verified with
// the password_verify function.
$password = password_hash($password, PASSWORD_BCRYPT);
// Insert the new user into the database
if ($insert_stmt = $mysqli->prepare("INSERT INTO *** (username, email, firstname, lastname, password) VALUES (?, ?, ?, ?, ?)")) {
$insert_stmt->bind_param('sssss', $username, $email, $firstname, $lastname, $password);
// Execute the prepared query.
if (! $insert_stmt->execute()) {
header('Location: ../error.php?err=Registration failure: INSERT');
}
}
header('Location: ./register_success.php');
}
}
?>
更新：在Jsfiddle上，它的工作正常。但不是我的localhost：
这是截图：
这里的密码是好的Rubik123但名字姓不好。但它显示错误的错误类型。
即使添加正确的数据，它仍然显示错误。
解决方案：自己解决问题。因为它在JSfiddle上正常工作，所以感觉编码不是问题（也像其他成员建议的那样）。所以我清除了我的浏览器缓存＆amp;然后运行它。现在JS文件正常工作，因此表单。我不知道浏览器缓存cookie与此有直接关系。
1 个答案:
答案 0 :(得分：1)
这对我有用。 Abc123456。
function formhash(form, password) {
// Create a new element input, this will be our hashed password field.
var p = document.createElement("input");
// Add the new element to our form.
form.appendChild(p);
p.name = "p";
p.type = "hidden";
p.value = hex_sha512(password.value);
// Make sure the plaintext password doesn't get sent.
password.value = "";
// Finally submit the form.
form.submit();
}
function regformhash(form, uid, email, firstname, lastname, password, conf) {
// Check each field has a value
if (uid.value === '' || email.value === '' || firstname.value === '' || lastname.value === '' || password.value === '' || conf.value === '') {
alert('You must provide all the requested details. Please try again');
return false;
}
// Check the username
var re = /^\w+$/;
if (!re.test(form.username.value)) {
alert("Username must contain only letters, numbers and underscores. Please try again");
form.username.focus();
return false;
}
// Check the first name only letters
var res = /^[a-zA-Z]+$/;
if(!res.test(form.firstname.value)) {
alert("firstname must contain only letters. Please try again");
form.firstname.focus();
return false;
}
// Check the last name only letters
var ree = /^[a-zA-Z]+$/;
if(!ree.test(form.lastname.value)) {
alert("lastname must contain only letters. Please try again");
form.lastname.focus();
return false;
}
// Check that the password is sufficiently long (min 6 chars)
// The check is duplicated below, but this is included to give more
// specific guidance to the user
if (password.value.length < 6) {
alert('Passwords must be at least 6 characters long. Please try again');
form.password.focus();
return false;
}
// At least one number, one lowercase and one uppercase letter
// At least six characters
var rek = /(?=.*\d)(?=.*[a-z])(?=.*[A-Z]).{6,}/;
if (!rek.test(password.value)) {
alert('Passwords must contain at least one number, one lowercase and one uppercase letter. Please try again');
form.password.focus();
return false;
}
// Check password and confirmation are the same
if (password.value !== conf.value) {
alert('Your password and confirmation do not match. Please try again');
form.password.focus();
return false;
}
// Create a new element input, this will be our hashed password field.
var p = document.createElement("input");
// Add the new element to our form.
form.appendChild(p);
p.name = "p";
p.type = "hidden";
p.value = password.value;
// Make sure the plaintext password doesn't get sent.
password.value = "";
conf.value = "";
// Finally submit the form.
form.submit();
return true;
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Secure Login: Registration Form</title>
<script type="text/JavaScript" src="js/sha512.js"></script>
<script type="text/JavaScript" src="js/forms.js"></script>
<link rel="stylesheet" href="styles/main.css" />
</head>
<body>
<!-- Registration form to be output if the POST variables are not
set or if the registration script caused an error. -->
<h1>Register with us</h1>
<?php
if (!empty($error_msg)) {
echo $error_msg;
}
?>
<ul>
<li>Usernames may contain only digits, upper and lower case letters and underscores</li>
<li>Emails must have a valid email format</li>
<li>Passwords must be at least 6 characters long</li>
<li>Passwords must contain
<ul>
<li>At least one upper case letter (A..Z)</li>
<li>At least one lower case letter (a..z)</li>
<li>At least one number (0..9)</li>
</ul>
</li>
<li>Your password and confirmation must match exactly</li>
</ul>
<form method="post" name="registration_form" action="<?php echo esc_url($_SERVER['PHP_SELF']); ?>">
Username: <input type='text' name='username' id='username' /><br>
Email: <input type="text" name="email" id="email" /><br>
First Name: <input type="text" name="firstname" id="firstname" /><br>
Last Name: <input type="text" name="lastname" id="lastname" /><br>
Password: <input type="password"
name="password"
id="password"/><br>
Confirm password: <input type="password"
name="confirmpwd"
id="confirmpwd" /><br>
<input type="button"
value="Register"
onclick="return regformhash(this.form,
this.form.username,
this.form.email,
this.form.firstname,
this.form.lastname,
this.form.password,
this.form.confirmpwd);" />
</form>
<p>Return to the <a href="index.php">login page</a>.</p>
</body>
</html>
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