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"""
简易 FastAPI 开发服务器，用于预览 HTML 文件
"""
import os
import argparse
from pathlib import Path
from fastapi import FastAPI, HTTPException, Query
from fastapi.responses import FileResponse, HTMLResponse
import uvicorn
app = FastAPI(title="HTML Preview Server")
# 全局变量存储根目录
ROOT_DIR = None
# 排除的目录
EXCLUDE_DIRS = {".venv", "node_modules", "__pycache__", ".git", ".pytest_cache"}
@app.get("/")
async def root(q: str = Query("", description="搜索文件")):
"""根路径显示可用文件列表，支持搜索过滤"""
if ROOT_DIR is None:
raise HTTPException(status_code=500, detail="Root directory not set")
html_files = []
for root, dirs, files in os.walk(ROOT_DIR):
# 过滤排除的目录
dirs[:] = [d for d in dirs if d not in EXCLUDE_DIRS]
for f in files:
if f.endswith(".html"):
full_path = os.path.join(root, f)
rel_path = os.path.relpath(full_path, ROOT_DIR)
# 搜索过滤
if q and q.lower() not in rel_path.lower():
continue
html_files.append(
f'<li><a href="/preview/{rel_path}">{rel_path}</a></li>'
)
html_content = f"""
<!DOCTYPE html>
<html>
<head>
<title>HTML Preview Server</title>
<style>
:root {{
--primary: #867cf0;
--secondary: #42b883;
--bg-1: #f7f8ff;
--bg-2: #ffffff;
--text-main: #1f2430;
--text-sub: #5c6273;
--line: rgba(134, 124, 240, 0.18);
}}
* {{ box-sizing: border-box; margin: 0; padding: 0; }}
body {{
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
background:
radial-gradient(1000px 520px at 8% 0%, rgba(134, 124, 240, 0.2) 0%, rgba(134, 124, 240, 0) 55%),
radial-gradient(860px 460px at 100% 100%, rgba(66, 184, 131, 0.17) 0%, rgba(66, 184, 131, 0) 60%),
linear-gradient(180deg, var(--bg-1) 0%, #f3f5fb 100%);
min-height: 100vh;
padding: 40px 20px;
color: var(--text-main);
}}
.container {{
max-width: 900px;
margin: 0 auto;
}}
.header {{
text-align: center;
color: #7f88f4;
margin-bottom: 40px;
}}
.header h1 {{
font-size: 2.5rem;
font-weight: 300;
margin-bottom: 8px;
text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}}
.header p {{
font-size: 0.95rem;
opacity: 0.85;
background: rgba(255,255,255,0.15);
display: inline-block;
padding: 6px 16px;
border-radius: 20px;
word-break: break-all;
max-width: 100%;
}}
.search-box {{
background: white;
border-radius: 16px;
padding: 8px;
box-shadow: 0 10px 40px rgba(0,0,0,0.15);
margin-bottom: 30px;
}}
.search-box form {{
display: flex;
align-items: center;
}}
.search-box input {{
flex: 1;
border: none;
outline: none;
padding: 16px 20px;
font-size: 1rem;
color: #333;
background: transparent;
}}
.search-box input::placeholder {{
color: #999;
}}
.search-box button {{
background: linear-gradient(135deg, var(--primary) 0%, #7f88f4 48%, var(--secondary) 100%);
color: white;
border: none;
padding: 14px 28px;
border-radius: 10px;
font-size: 0.95rem;
cursor: pointer;
transition: transform 0.2s, box-shadow 0.2s;
}}
.search-box button:hover {{
transform: translateY(-1px);
box-shadow: 0 4px 12px rgba(134, 124, 240, 0.35);
}}
.card {{
background: white;
border-radius: 16px;
box-shadow: 0 10px 40px rgba(0,0,0,0.15);
overflow: hidden;
}}
.card-header {{
padding: 20px 24px;
border-bottom: 1px solid #f0f0f0;
display: flex;
justify-content: space-between;
align-items: center;
}}
.card-header h2 {{
font-size: 1.1rem;
font-weight: 600;
color: #333;
}}
.count {{
background: linear-gradient(135deg, var(--primary) 0%, #7f88f4 48%, var(--secondary) 100%);
color: white;
padding: 4px 14px;
border-radius: 20px;
font-size: 0.85rem;
font-weight: 500;
}}
.file-list {{
padding: 16px 24px 24px;
columns: 2;
column-gap: 16px;
}}
.file-list li {{
list-style: none;
margin-bottom: 10px;
break-inside: avoid;
}}
.file-list a {{
display: flex;
align-items: center;
padding: 12px 16px;
background: #f8f9fa;
border-radius: 10px;
color: #555;
text-decoration: none;
font-size: 0.9rem;
transition: all 0.2s;
border: 1px solid transparent;
}}
.file-list a:hover {{
background: linear-gradient(135deg, rgba(134,124,240,0.1) 0%, rgba(66,184,131,0.1) 100%);
border-color: rgba(134, 124, 240, 0.3);
color: var(--primary);
transform: translateX(4px);
}}
.file-icon {{
margin-right: 10px;
font-size: 1.1rem;
}}
.empty {{
text-align: center;
padding: 60px 20px;
color: #999;
}}
.empty-icon {{
font-size: 3rem;
margin-bottom: 16px;
}}
</style>
</head>
<body>
<div class="container">
<div class="header">
<h1>HTML Preview Server</h1>
<p>{ROOT_DIR}</p>
</div>
<div class="search-box">
<form method="get">
<input type="text" name="q" placeholder="搜索 HTML 文件..." value="{q}" autofocus>
<button type="submit">搜索</button>
</form>
</div>
<div class="card">
<div class="card-header">
<h2>可用文件</h2>
<span class="count">{len(html_files)} 个文件</span>
</div>
<ul class="file-list">
{"".join(html_files) if html_files else '<div class="empty"><div class="empty-icon">📭</div><p>没有找到 HTML 文件</p></div>'}
</ul>
</div>
</div>
</body>
</html>
"""
return HTMLResponse(content=html_content)
@app.get("/preview/{file_path:path}")
async def preview_html(file_path: str):
"""预览指定路径的 HTML 文件"""
if ROOT_DIR is None:
raise HTTPException(status_code=500, detail="Root directory not set")
file_full_path = os.path.join(ROOT_DIR, file_path)
# 检查是否在排除目录中
normalized_path = os.path.normpath(file_full_path)
for exclude_dir in EXCLUDE_DIRS:
if exclude_dir in normalized_path.split(os.sep):
raise HTTPException(status_code=403, detail="Access denied")
if not os.path.exists(file_full_path):
raise HTTPException(status_code=404, detail=f"File not found: {file_path}")
if not file_full_path.endswith(".html"):
raise HTTPException(status_code=400, detail="Only HTML files are supported")
return FileResponse(file_full_path)
@app.get("/static/{file_path:path}")
async def serve_static(file_path: str):
"""提供静态文件服务（CSS, JS, 图片等）"""
if ROOT_DIR is None:
raise HTTPException(status_code=500, detail="Root directory not set")
file_full_path = os.path.join(ROOT_DIR, file_path)
if not os.path.exists(file_full_path):
raise HTTPException(status_code=404, detail=f"File not found: {file_path}")
return FileResponse(file_full_path)
def main():
parser = argparse.ArgumentParser(description="HTML Preview Server")
parser.add_argument(
"-r",
"--root",
default=".",
help="Root directory to serve (default: current directory)",
)
parser.add_argument(
"-p",
"--port",
type=int,
default=8000,
help="Port to run the server on (default: 8000)",
)
parser.add_argument(
"--host", default="127.0.0.1", help="Host to bind to (default: 127.0.0.1)"
)
args = parser.parse_args()
global ROOT_DIR
ROOT_DIR = os.path.abspath(args.root)
if not os.path.isdir(ROOT_DIR):
print(f"Error: {ROOT_DIR} is not a directory")
return
print(f"Serving HTML files from: {ROOT_DIR}")
print(f"Access at: http://{args.host}:{args.port}")
uvicorn.run(app, host=args.host, port=args.port)
if __name__ == "__main__":
main()