我正在我的 Web 应用程序中为已经登录的用户更改密码(因此这不是忘记密码选项)。我有一个 HTML 表单,然后是用于表单验证的外部 JS 文件,如果输入的数据通过验证,则通过 AJAX 将输入的值发送到 PHP 脚本,然后验证数据,如果一切正常,更新数据库中的密码。我现在遇到的问题是如何将用户 ID 从 $_SESSION 变量传递到 PHP 脚本,该脚本通过用户 ID 在用户数据库中找到该行并更改密码。我在互联网上搜索,我没有找到一个很好的答案来解决我的问题。我试图避免<input type="hidden" value="<?php echo $_SESSION["userid"]?>">
方法,因为它缺乏安全性。
这是我的脚本:
HTML
<?php
include_once "./includes/header.php";
?>
<!-- MAIN PAGE CONTENT -->
<main>
<div class="main-content">
<div class="page-title">
<h1>Change password</h1>
</div>
<div class="page-content">
<div class="page-subcontent-wrapper">
<div class="page-subcontent-section">
<form id="js-change-password-form" class="change-user-password-wrapper" method="POST" action="" autocomplete="off" accept-charset="UTF-8" novalidate>
<div class="change-user-password">
<div class="change-user-password-element">
<label for="js-change-password-input">New password:</label>
<div id="js-change-password-display" class="password-display hide-password"></div>
</div>
<div class="change-password-input-wrapper">
<input id="js-change-password-input" type="password">
<div id="js-change-password-message" class="validation-message-div"></div>
</div>
</div>
<div class="change-user-password">
<div class="change-user-password-element">
<label for="js-change-password-confirm-input">Confirm password:</label>
<div id="js-change-password-confirm-display" class="password-display hide-password"></div>
</div>
<div class="change-password-input-wrapper">
<input id="js-change-password-confirm-input" type="password">
<div id="js-change-password-confirm-message" class="validation-message-div"></div>
</div>
</div>
<div class="change-user-password-button">
<button id="js-change-password-button" type="submit">Submit</button>
</div>
</form>
<div class="change-user-password">
<div class="change-user-password-message-success">
</div>
</div>
</div>
</div>
</div>
</div>
<script src="./js/change_password.js">
</script>
</main>
<?php
include_once "./includes/footer.php";
?>
注意:header.php在session_start();
其顶部。
Javascript/JQuery
$(document).ready(function(){
// Password validators
$("#js-change-password-form").submit(function(e){
var changePasswordValue = $("#js-change-password-input").val();
var changePasswordValueLength = changePasswordValue.length;
var changePasswordConfirmValue = $("#js-change-password-confirm-input").val();
var userId = $("#js-user-id-input").val();
e.preventDefault();
if (changePasswordValueLength < 8) {
var errorMessage = "<div class='error-message error-pointer'><p>Password should have at least 8 characters.</p></div>";
$("#js-change-password-message").html(errorMessage);
$(".validation-message-div").css("display", "flex");
$("#js-change-password-input").css("border-color", "rgb(190,115,110)");
} else {
var errorMessage = "<div class='success-message'><p>Looking good!</p></div>";
$("#js-change-password-message").html(errorMessage);
$(".validation-message-div").css("display", "flex");
$("#js-change-password-input").css("border-color", "rgb(95,160,95)");
noErrorChangePassword = true;
}
if (changePasswordValueLength < 8) {
$("#js-change-password-confirm-message").css("display", "none");
$("#js-change-password-confirm-message").empty();
$("#js-change-password-confirm-input").css("border-color", "rgb(225,225,225)");
} else {
if (changePasswordConfirmValue != changePasswordValue) {
var errorMessage = "<div class='error-message error-pointer'><p>Password doesn't match.</p></div>";
$("#js-change-password-confirm-message").html(errorMessage);
$(".validation-message-div").css("display", "flex");
$("#js-change-password-confirm-input").css("border-color", "rgb(190,115,110)");
} else {
var errorMessage = "<div class='success-message'><p>Password match.</p></div>";
$("#js-change-password-confirm-message").html(errorMessage);
$(".validation-message-div").css("display", "flex");
$("#js-change-password-confirm-input").css("border-color", "rgb(95,160,95)");
noErrorChangePasswordConfirm = true;
}
}
if (noErrorChangePassword == true && noErrorChangePasswordConfirm == true) {
$("#js-change-password-form").find("input, select, button").prop("disabled", true);
setTimeout(function(){
$("#js-change-password-form").fadeOut(750);
setTimeout(function(){
$(".change-user-password-message-success").fadeIn(750);
setTimeout(function(){
window.location.replace('./profile.php');
}, 5000);
}, 750);
}, 500);
$.ajax({
url : "./includes/change_password.script.php",
method : "POST",
data : {
changePasswordValue : changePasswordValue,
changePasswordConfirmValue : changePasswordConfirmValue,
/* userId : userId, ? */
submit : 1
},
success : function(data) {
$(".change-user-password-message-success").html(data);
}
});
}
});
/* ---------------------------------------------------------
-------------------- PASSWORD DISPLAY ------------------
----------------------------------------------------- */
/* -------- Password Display Hidden -------- */
$("#js-change-password-display").click(function(){
var fieldType = $("#js-change-password-input").attr("type");
if (fieldType == "password") {
$("#js-change-password-input").attr("type", "text");
$("#js-change-password-display").removeClass("hide-password").addClass("show-password");
} else {
$("#js-change-password-input").attr("type", "password");
$("#js-change-password-display").removeClass("show-password").addClass("hide-password");
}
});
/* -------- Confirm Password Display Hidden -------- */
$("#js-change-password-confirm-display").click(function(){
var fieldType = $("#js-change-password-confirm-input").attr("type");
if (fieldType == "password") {
$("#js-change-password-confirm-input").attr("type", "text");
$("#js-change-password-confirm-display").removeClass("hide-password").addClass("show-password");
} else {
$("#js-change-password-confirm-input").attr("type", "password");
$("#js-change-password-confirm-display").removeClass("show-password").addClass("hide-password");
}
});
});
PHP
<?php
if (isset($_POST["submit"])) {
include_once "dbconn.script.php";
$user_id = /* ? */;
$changePasswordValue = $_POST["changePasswordValue"];
$changePasswordConfirmValue = $_POST["changePasswordConfirmValue"];
$changePasswordValueLength = strlen($changePasswordValue);
if ($changePasswordValueLength < 8) {
echo "<p>Password should have at least 8 characters.<p>";
} else {
if ($changePasswordConfirmValue != $changePasswordValue) {
echo "<p>Passwords you entered does not match.</p>";
} else {
$hashedChangePassword = password_hash(base64_encode(hash('sha384', $changePasswordValue, true)), PASSWORD_BCRYPT, ["cost" => 11]);
$sql = "UPDATE hgs_users SET user_pw = ? WHERE user_id = ?";
$stmt = mysqli_stmt_init($conn);
if (!mysqli_stmt_prepare($stmt, $sql)) {
echo "<p>SQL statement failed!</p>";
exit();
} else {
mysqli_stmt_bind_param($stmt, "ss", $hashedChangePassword, $user_id);
mysqli_stmt_execute($stmt);
mysqli_stmt_close($stmt);
echo "<p>Success!</p>";
}
}
}
mysqli_close($conn);
} else {
header("Location: ../index.php");
}
?>