def fetch_content(request: werkzeug.Request,
response: werkzeug.Response) -> None:
url = request.args["url"]
proxy_query_header = make_request_headers(request.headers)
try:
proxy_response = requests.get(url,
headers=proxy_query_header,
timeout=TIMEOUT)
except requests.exceptions.SSLError:
# Invalid SSL Certificate
response.status = 526
except requests.exceptions.ConnectionError:
response.status = 523
except requests.exceptions.Timeout:
response.status = 524
except requests.exceptions.TooManyRedirects:
response.status = 520
else:
response.body = proxy_response.content
if proxy_response.status_code == 500:
response.status = 520
else:
copy_proxy_headers(proxy_response, response)
response.headers["Access-Control-Allow-Origin"] = get_access_url(
request.headers)
def _application(self, environ, start_response):
request = Request(environ)
self.logger.info(request.full_path)
status_code = 200
headers = {'Content-Type': 'application/json'}
content = ''
if request.path == '/': # 接管主页，因为所有请求需要token，主页转发不能正常工作
headers = {'Content-Type': 'text/html'}
content = '<h1><a href="https://github.com/xiyaoWong/iotbot-http-transfer">iotbot http tranfer</a><h1>'
elif request.path.strip('/') == 'favicon.ico':
status_code = 301
del headers['Content-Type']
headers['location'] = 'https://cdn.jsdelivr.net/gh/xiyaowong/FileHost/transfer.png'
elif request.path.strip('/') == 'genToken': # 处理token生成请求
key = request.args.get('key')
if key == self.key:
token = self._genarate_token('ok, it\' funny.')
content = json.dumps({'token': token})
else:
content = '{"Ret":1111, "Msg":"key错误"}'
else: # 处理其他请求
# 鉴权
token = request.args.get('token') or request.headers.get('Authorization')
if not self._check_token(token): # 大胆，狗贼
content = '{"Ret":2222, "Msg":"无效的token"}'
else:
try:
resp = requests.request(
request.method,
'{}{}?{}'.format(
'http://{}:{}'.format(self.iotbot_host, self.iotbot_port),
request.path,
request.query_string.decode()),
headers=request.headers,
data=request.data,
timeout=self.timeout
)
except requests.Timeout as e:
self.logger.warning(e)
content = '{"Ret":3333, "Msg":"请求响应超时"}'
except requests.ConnectionError as e:
self.logger.exception(e)
content = '{"Ret":4444, "Msg":"连接错误"}'
except Exception as e:
self.logger.exception(e)
content = '{"Ret":5555, "Msg":"请求响应失败"}'
else:
content = resp.content
status_code = resp.status_code
headers = resp.headers
response = Response(content)
response.status = HTTP_STATUS_CODES[status_code]
response.status_code = status_code
for header_name, header_value in headers.items():
response.headers[header_name] = header_value
return response(environ, start_response)