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import asyncio, logging
url_map = []
def route(url, **kwargs):
def wrapper(func):
url_map.append((url, func, kwargs))
return func
return wrapper
@route('/hello')
async def hello(reader, writer):
await start_response(writer, status='200')
writer.write(b"hello\r\n")
return 'hello'
@route('/world')
async def world(reader, writer):
await start_response(writer, status='200')
writer.write(b"world\r\n")
return 'world'
async def start_response(writer,
content_type="text/html; charset=utf-8",
status="200",
headers=None):
writer.write(str.encode(f"HTTP/1.0 {status} NA\r\n"))
writer.write(b"Content-Type: ")
writer.write(str.encode(content_type))
if not headers:
writer.write(b"\r\n\r\n")
return
writer.write(b"\r\n")
if isinstance(headers, bytes) or isinstance(headers, str):
await writer.write(str.encode(headers))
else:
for k, v in headers.items():
writer.write(str.encode(k))
writer.write(b": ")
writer.write(str.encode(v))
writer.write(b"\r\n")
writer.write(b"\r\n")
async def handler(reader, writer):
# await start_response(writer, status='404')
await start_response(writer, status='200')
writer.write(b"hello\r\n")
async def handler_404(reader, writer):
await start_response(writer, status='404')
async def handle(reader, writer):
print(f'handle...')
print(url_map)
method = ''
path = ''
found = False
try:
data = await reader.readline()
method, path, proto = data.split()
print(data)
print(method)
print(path)
print(proto)
except Exception as e:
print(e)
print('method = ', method)
print('path = ', path)
pattern = None
handler_action = None
extra = {}
for url in url_map:
pattern = url[0]
handler_action = url[1]
if len(url) > 2:
extra = url[2]
print('pattern = ', str.encode(pattern))
print('path = ', path)
if path == str.encode(pattern):
found = True
break
if found:
await handler_action(reader, writer)
else:
await handler_404(reader, writer)
await writer.drain()
writer.close()
await writer.wait_closed()
def serve(loop, host, port):
loop.create_task(asyncio.start_server(handle, host, port))
loop.run_forever()
def run(host, port=8090):
loop = asyncio.get_event_loop()
serve(loop, host, port)
print('run ....')
loop.close()
asyncio.run(run('0.0.0.0'))
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