Merge branch 'master' of https://github.com/yumoqing/appPublic

http_client.py

@@ -0,0 +1,120 @@
+import requests
+
+class NeedLogin(Exception):
+	pass
+
+class InsufficientPrivilege(Exception):
+	pass
+
+class HTTPError(Exception):
+	def __init__(self,resp_code):
+		self.resp_code = resp_code
+		Exception.__init__(self)
+
+	def __expr__(self):
+		return f'Exception:return code={self.resp_code}'
+
+	def __str__(self):
+		return f'Exception:return code={self.resp_code}'
+
+hostsessions = {}
+
+class HttpClient:
+	def __init__(self):
+		self.s = requests.Session()
+		
+	def url2domain(self,url):
+		parts = url.split('/')[:3]
+		pre = '/'.join(parts)
+		return pre
+
+	def _webcall(self,url,method="GET",
+					params={},
+					files={},
+					headers={},
+					stream=False):
+		domain = self.url2domain(url)
+		sessionid = hostsessions.get(domain,None)
+		if sessionid:
+			headers.update({'session':sessionid})
+		
+		if method in ['GET']:
+			req = requests.Request(method,url,
+					params=params,headers=headers)
+		else:
+			req = requests.Request(method,url,
+					data=params,files=files,headers=headers)
+		prepped = self.s.prepare_request(req)
+		resp = self.s.send(prepped)
+		if resp.status_code == 200:
+			h = resp.headers.get('Set-Cookie',None)
+			if h:
+				sessionid = h.split(';')[0]
+				hostsessions[domain] = sessionid
+
+		if resp.status_code == 401:
+			print('NeedLogin:',url)
+			raise NeedLogin
+
+		if resp.status_code == 403:
+			raise InsufficientPrivilege
+
+		if resp.status_code != 200:
+			print('Error', url, method, 
+					params, resp.status_code,
+					type(resp.status_code))
+			raise HTTPError(resp.status_code)
+		return resp
+
+	def webcall(self,url,method="GET",
+				params={},
+				files={},
+				headers={},
+				stream=False):
+		resp = self._webcall(url,method=method,
+				params=params,
+				files=files,
+				headers=headers,
+				stream=stream)
+		if stream:
+			return resp
+		try:
+			data = resp.json()
+			if type(data) != type({}):
+				return data
+			status = data.get('status',None)
+			if status is None:
+				return data
+			if status == 'OK':
+				return data['data']
+			return data
+		except:
+			return resp.text
+		
+	def __call__(self,url,method="GET",
+				params={},
+				headers={},
+				files={},
+				stream=False):
+		return self.webcall(url, method=method,
+						params=params, files=files, headers=headers)
+
+	def get(self, url, params={}, headers={}):
+		return self.__call__(url,method='GET',params=params,
+				headers=headers)
+	def post(self, url, params={}, headers={}, files={}):
+		return self.__call__(url,method='POST',params=params, files=files,
+				headers=headers)
+
+	def put(self, url, params={}, headers={}):
+		return self.__call__(url,method='PUT',params=params,
+				headers=headers)
+
+	def delete(self, url, params={}, headers={}):
+		return self.__call__(url,method='DELETE',params=params,
+				headers=headers)
+
+	def option(self, url, params={}, headers={}):
+		return self.__call__(url,method='OPTION',params=params,
+				headers=headers)
+