246 lines
6.4 KiB
PHP
246 lines
6.4 KiB
PHP
<?php
|
|
const USER = 'admin';
|
|
const PASS = '123456';
|
|
|
|
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
|
|
$username = $_POST['username'] ?? '';
|
|
$password = $_POST['password'] ?? '';
|
|
$inputCaptcha = strtoupper($_POST['captcha'] ?? '');
|
|
$trueCaptcha = strtoupper($_POST['captcha_code'] ?? '');
|
|
|
|
$error = '';
|
|
if ($inputCaptcha !== $trueCaptcha) {
|
|
$error = '验证码错误';
|
|
} elseif ($username !== USER || $password !== PASS) {
|
|
$error = '账号或密码错误';
|
|
} else {
|
|
$error = '登录成功！';
|
|
}
|
|
}
|
|
|
|
function generateCaptcha() {
|
|
$chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ';
|
|
$captcha = substr(str_shuffle($chars), 0, 5);
|
|
|
|
$width = 120;
|
|
$height = 40;
|
|
$image = imagecreatetruecolor($width, $height);
|
|
|
|
$bgColor = imagecolorallocate($image, 255, 255, 255);
|
|
$textColor = imagecolorallocate($image, 0, 0, 0);
|
|
|
|
imagefilledrectangle($image, 0, 0, $width, $height, $bgColor);
|
|
imagestring($image, 5, 30, 12, $captcha, $textColor);
|
|
|
|
ob_start();
|
|
imagepng($image);
|
|
$imgData = ob_get_clean();
|
|
imagedestroy($image);
|
|
|
|
return [
|
|
'code' => $captcha,
|
|
'image' => 'data:image/png;base64,' . base64_encode($imgData)
|
|
];
|
|
}
|
|
|
|
$captchaData = generateCaptcha();
|
|
?>
|
|
|
|
|
|
<!DOCTYPE html>
|
|
<html lang="zh-CN">
|
|
<head>
|
|
<meta charset="UTF-8">
|
|
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
|
<title>系统登录 - 安全入口</title>
|
|
<style>
|
|
* {
|
|
margin: 0;
|
|
padding: 0;
|
|
box-sizing: border-box;
|
|
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
|
|
}
|
|
|
|
body {
|
|
min-height: 100vh;
|
|
display: flex;
|
|
justify-content: center;
|
|
align-items: center;
|
|
background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
|
|
}
|
|
|
|
.login-container {
|
|
background: rgba(255, 255, 255, 0.95);
|
|
padding: 2.5rem;
|
|
border-radius: 1rem;
|
|
box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
|
|
width: 100%;
|
|
max-width: 400px;
|
|
transform: translateY(-10%);
|
|
}
|
|
|
|
h2 {
|
|
text-align: center;
|
|
color: #2d3748;
|
|
margin-bottom: 1.8rem;
|
|
font-size: 1.8rem;
|
|
}
|
|
|
|
.form-group {
|
|
margin-bottom: 1.5rem;
|
|
}
|
|
|
|
label {
|
|
display: block;
|
|
margin-bottom: 0.5rem;
|
|
color: #4a5568;
|
|
font-weight: 600;
|
|
}
|
|
|
|
input {
|
|
width: 100%;
|
|
padding: 0.8rem;
|
|
border: 2px solid #e2e8f0;
|
|
border-radius: 0.5rem;
|
|
font-size: 1rem;
|
|
transition: border-color 0.3s ease;
|
|
}
|
|
|
|
input:focus {
|
|
outline: none;
|
|
border-color: #667eea;
|
|
box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
|
|
}
|
|
|
|
.captcha-group {
|
|
display: flex;
|
|
gap: 1rem;
|
|
align-items: center;
|
|
}
|
|
|
|
.captcha-img {
|
|
border-radius: 0.5rem;
|
|
border: 2px solid #e2e8f0;
|
|
cursor: pointer;
|
|
transition: transform 0.2s ease;
|
|
}
|
|
|
|
.captcha-img:hover {
|
|
transform: scale(1.05);
|
|
}
|
|
|
|
button {
|
|
width: 100%;
|
|
padding: 1rem;
|
|
background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
|
|
color: white;
|
|
border: none;
|
|
border-radius: 0.5rem;
|
|
font-size: 1rem;
|
|
font-weight: 600;
|
|
cursor: pointer;
|
|
transition: transform 0.2s ease, opacity 0.2s ease;
|
|
}
|
|
|
|
button:hover {
|
|
transform: translateY(-2px);
|
|
opacity: 0.9;
|
|
}
|
|
|
|
.error {
|
|
padding: 1rem;
|
|
margin-bottom: 1.5rem;
|
|
background: #fff5f5;
|
|
color: #c53030;
|
|
border: 2px solid #fed7d7;
|
|
border-radius: 0.5rem;
|
|
font-weight: 500;
|
|
display: flex;
|
|
align-items: center;
|
|
gap: 0.8rem;
|
|
}
|
|
|
|
.error::before {
|
|
content: '!';
|
|
display: flex;
|
|
align-items: center;
|
|
justify-content: center;
|
|
width: 1.5rem;
|
|
height: 1.5rem;
|
|
background: #c53030;
|
|
color: white;
|
|
border-radius: 50%;
|
|
font-weight: bold;
|
|
}
|
|
|
|
.success {
|
|
background: #f0fff4;
|
|
color: #2f855a;
|
|
border-color: #c6f6d5;
|
|
}
|
|
|
|
.success::before {
|
|
content: '✓';
|
|
background: #48bb78;
|
|
}
|
|
</style>
|
|
</head>
|
|
<body>
|
|
<div class="login-container">
|
|
<h2>系统安全登录</h2>
|
|
|
|
<?php if (!empty($error)): ?>
|
|
<div class="error <?= strpos($error, '成功') !== false ? 'success' : '' ?>">
|
|
<?= $error ?>
|
|
</div>
|
|
<?php endif; ?>
|
|
|
|
<form method="post">
|
|
<div class="form-group">
|
|
<label for="username">账号</label>
|
|
<input
|
|
type="text"
|
|
id="username"
|
|
name="username"
|
|
required
|
|
placeholder="请输入您的账号"
|
|
>
|
|
</div>
|
|
|
|
<div class="form-group">
|
|
<label for="password">密码</label>
|
|
<input
|
|
type="password"
|
|
id="password"
|
|
name="password"
|
|
required
|
|
placeholder="请输入您的密码"
|
|
>
|
|
</div>
|
|
|
|
<div class="form-group">
|
|
<label>验证码</label>
|
|
<div class="captcha-group">
|
|
<input
|
|
type="text"
|
|
name="captcha"
|
|
required
|
|
placeholder="输入右侧验证码"
|
|
style="flex: 1;"
|
|
>
|
|
<img
|
|
src="<?= $captchaData['image'] ?>"
|
|
class="captcha-img"
|
|
title="点击刷新验证码"
|
|
onclick="this.src='<?= $captchaData['image'] ?>?t='+Date.now()"
|
|
>
|
|
<input type="hidden" name="captcha_code" value="<?= $captchaData['code'] ?>">
|
|
</div>
|
|
</div>
|
|
|
|
<button type="submit">立即登录</button>
|
|
</form>
|
|
</div>
|
|
</body>
|
|
</html>
|