458 lines
13 KiB
HTML
458 lines
13 KiB
HTML
<!DOCTYPE html>
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<html lang="zh">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>登录 - 局域网聊天室</title>
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<link rel="stylesheet" href="https://use.fontawesome.com/releases/v6.4.0/css/all.min.css">
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<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.7.2/font/bootstrap-icons.css">
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<style>
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:root {
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--primary-color: #667eea;
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--secondary-color: #764ba2;
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--background-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
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--success-color: #4ade80;
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--error-color: #ef4444;
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--text-dark: #1f2937;
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--text-light: #6b7280;
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--border-color: #e5e7eb;
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--shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
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}
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* {
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}
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body {
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font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
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background: var(--background-gradient);
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min-height: 100vh;
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display: flex;
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align-items: center;
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justify-content: center;
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padding: 20px;
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}
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.login-container {
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background: white;
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border-radius: 24px;
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box-shadow: var(--shadow);
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padding: 48px;
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width: 100%;
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max-width: 480px;
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position: relative;
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overflow: hidden;
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}
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.login-container::before {
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content: '';
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position: absolute;
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top: 0;
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left: 0;
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right: 0;
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height: 6px;
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background: var(--background-gradient);
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}
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.login-header {
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text-align: center;
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margin-bottom: 40px;
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}
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.login-header h1 {
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color: var(--text-dark);
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font-size: 2rem;
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font-weight: 700;
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margin-bottom: 8px;
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}
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.login-header p {
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color: var(--text-light);
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font-size: 1rem;
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line-height: 1.5;
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}
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.form-group {
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margin-bottom: 24px;
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}
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label {
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display: block;
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color: var(--text-dark);
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font-weight: 500;
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margin-bottom: 8px;
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font-size: 0.95rem;
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}
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.input-wrapper {
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position: relative;
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}
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input[type="text"] {
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width: 100%;
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padding: 16px 20px 16px 48px;
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border: 2px solid var(--border-color);
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border-radius: 12px;
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font-size: 1rem;
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transition: all 0.3s ease;
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background: #fafafa;
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color: var(--text-dark);
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}
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input[type="text"]:focus {
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outline: none;
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border-color: var(--primary-color);
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background: white;
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box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
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}
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.input-icon {
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position: absolute;
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left: 16px;
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top: 50%;
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transform: translateY(-50%);
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color: var(--text-light);
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font-size: 1.1rem;
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}
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.login-btn {
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width: 100%;
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padding: 16px;
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background: var(--background-gradient);
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color: white;
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border: none;
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border-radius: 12px;
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font-size: 1rem;
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font-weight: 600;
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cursor: pointer;
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transition: all 0.3s ease;
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position: relative;
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overflow: hidden;
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}
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.login-btn:hover {
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transform: translateY(-2px);
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box-shadow: 0 10px 20px rgba(102, 126, 234, 0.4);
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}
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.login-btn:active {
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transform: translateY(0);
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}
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.login-btn:disabled {
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opacity: 0.6;
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cursor: not-allowed;
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transform: none;
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}
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.loading-spinner {
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display: none;
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width: 20px;
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height: 20px;
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border: 2px solid rgba(255, 255, 255, 0.3);
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border-radius: 50%;
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border-top-color: white;
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animation: spin 1s ease-in-out infinite;
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margin-right: 8px;
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}
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@keyframes spin {
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to { transform: rotate(360deg); }
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}
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.error-message {
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background: #fef2f2;
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border: 1px solid #fecaca;
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color: var(--error-color);
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padding: 12px 16px;
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border-radius: 8px;
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margin-bottom: 24px;
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font-size: 0.9rem;
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display: none;
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}
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.back-link {
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text-align: center;
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margin-top: 32px;
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padding-top: 24px;
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border-top: 1px solid var(--border-color);
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}
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.back-link a {
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color: var(--primary-color);
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text-decoration: none;
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font-weight: 500;
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display: inline-flex;
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align-items: center;
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gap: 8px;
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transition: color 0.3s ease;
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}
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.back-link a:hover {
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color: var(--secondary-color);
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}
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.features {
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margin-top: 32px;
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padding-top: 24px;
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border-top: 1px solid var(--border-color);
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}
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.feature-list {
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display: grid;
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grid-template-columns: 1fr 1fr;
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gap: 16px;
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margin-top: 16px;
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}
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.feature-item {
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display: flex;
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align-items: center;
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gap: 8px;
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color: var(--text-light);
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font-size: 0.9rem;
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}
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.feature-item i {
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color: var(--success-color);
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font-size: 1rem;
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}
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/* 移动端优化 */
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@media (max-width: 480px) {
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.login-container {
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padding: 32px 24px;
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border-radius: 16px;
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}
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.login-header h1 {
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font-size: 1.75rem;
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}
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.feature-list {
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grid-template-columns: 1fr;
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}
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}
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/* 动画效果 */
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.login-container {
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animation: slideUp 0.6s ease-out;
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}
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@keyframes slideUp {
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from {
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opacity: 0;
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transform: translateY(30px);
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}
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to {
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opacity: 1;
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transform: translateY(0);
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}
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}
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/* 输入框动画 */
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.input-wrapper {
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animation: fadeIn 0.8s ease-out 0.2s both;
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}
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.login-btn {
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animation: fadeIn 0.8s ease-out 0.4s both;
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}
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.back-link {
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animation: fadeIn 0.8s ease-out 0.6s both;
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}
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@keyframes fadeIn {
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from {
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opacity: 0;
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transform: translateY(20px);
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}
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to {
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opacity: 1;
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transform: translateY(0);
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}
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}
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</style>
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</head>
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<body>
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<div class="login-container">
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<div class="login-header">
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<h1><i class="bi bi-chat-dots-fill"></i> 局域网聊天室</h1>
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<p>请输入您的用户名开始聊天</p>
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</div>
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<form id="loginForm">
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<div class="error-message" id="errorMessage"></div>
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<div class="form-group">
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<label for="username">用户名</label>
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<div class="input-wrapper">
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<i class="bi bi-person-fill input-icon"></i>
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<input
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type="text"
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id="username"
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name="username"
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placeholder="请输入用户名（1-20个字符）"
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maxlength="20"
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required
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>
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</div>
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</div>
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<button type="submit" class="login-btn" id="loginBtn">
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<span class="loading-spinner" id="loadingSpinner"></span>
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<span id="btnText">进入聊天室</span>
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</button>
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</form>
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<div class="features">
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<div class="feature-list">
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<div class="feature-item">
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<i class="bi bi-shield-check"></i>
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<span>安全可靠</span>
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</div>
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<div class="feature-item">
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<i class="bi bi-lightning-fill"></i>
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<span>实时聊天</span>
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</div>
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<div class="feature-item">
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<i class="bi bi-file-earmark-arrow-up"></i>
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<span>文件传输</span>
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</div>
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<div class="feature-item">
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<i class="bi bi-people-fill"></i>
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<span>群聊私聊</span>
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</div>
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</div>
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</div>
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<div class="back-link">
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<a href="/">
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<i class="bi bi-arrow-left"></i>
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返回文件传输
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</a>
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</div>
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</div>
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<script>
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const loginForm = document.getElementById('loginForm');
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const usernameInput = document.getElementById('username');
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const loginBtn = document.getElementById('loginBtn');
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const loadingSpinner = document.getElementById('loadingSpinner');
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const btnText = document.getElementById('btnText');
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const errorMessage = document.getElementById('errorMessage');
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// 自动聚焦用户名输入框
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usernameInput.focus();
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// 表单提交处理
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loginForm.addEventListener('submit', async (e) => {
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e.preventDefault();
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const username = usernameInput.value.trim();
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if (!username) {
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showError('请输入用户名');
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return;
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}
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if (username.length > 20) {
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showError('用户名长度不能超过20个字符');
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return;
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}
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// 开始登录
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setLoading(true);
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hideError();
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try {
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const formData = new FormData();
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formData.append('username', username);
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const response = await fetch('/login', {
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method: 'POST',
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body: formData
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});
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const data = await response.json();
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if (response.ok) {
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// 登录成功，保存session并跳转
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localStorage.setItem('session_id', data.session_id);
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localStorage.setItem('username', data.username);
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// 跳转到聊天页面
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window.location.href = '/chat';
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} else {
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showError(data.detail || '登录失败');
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}
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} catch (error) {
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console.error('登录错误:', error);
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showError('网络错误，请稍后重试');
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} finally {
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setLoading(false);
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}
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});
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// 回车键提交
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usernameInput.addEventListener('keypress', (e) => {
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if (e.key === 'Enter') {
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loginForm.dispatchEvent(new Event('submit'));
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}
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});
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// 实时验证用户名长度
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usernameInput.addEventListener('input', (e) => {
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const value = e.target.value;
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if (value.length > 20) {
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showError('用户名长度不能超过20个字符');
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} else {
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hideError();
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}
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});
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function setLoading(loading) {
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loginBtn.disabled = loading;
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loadingSpinner.style.display = loading ? 'inline-block' : 'none';
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btnText.textContent = loading ? '登录中...' : '进入聊天室';
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}
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function showError(message) {
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errorMessage.textContent = message;
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errorMessage.style.display = 'block';
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usernameInput.focus();
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}
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function hideError() {
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errorMessage.style.display = 'none';
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}
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// 检查是否已经登录
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window.addEventListener('load', async () => {
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const sessionId = localStorage.getItem('session_id');
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const username = localStorage.getItem('username');
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if (sessionId && username) {
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try {
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const response = await fetch(`/check_session?session_id=${sessionId}`);
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const data = await response.json();
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if (data.valid) {
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// 会话有效，直接跳转到聊天页面
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window.location.href = '/chat';
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return;
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}
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} catch (error) {
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console.log('会话检查失败:', error);
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}
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// 清理无效的会话信息
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localStorage.removeItem('session_id');
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localStorage.removeItem('username');
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}
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});
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</script>
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</body>
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</html> |