Python Http请求json解析库
httpparser介绍
:1.解析字节类型的http与https请求数据
:2.支持已k-v形式修改请求数据
:3.支持重新编码请求数据
源码
import json __author = "-ling" def parser(request_data): # 获取请求的三个段: # 1.请求方法 URI协议 版本 # 2.请求头(Request Header) # 3.请求正文 index0 = request_data.find(b"\r\n\r\n") request_predata = request_data[0:index0] index1 = request_predata.find(b"\r\n") # 请求方法 URI协议 版本 request_first_data = request_predata[0:index1].decode("utf-8") request_first = {} count = 0 list = ["method", 'url', 'version'] for line in request_first_data.split(" "): if line != "": request_first[list[count]] = line count += 1 # print("解析请求方法 URI协议 版本:",request_first) # 请求头(Request Header) request_header_data = request_predata[index1:].decode("utf-8") request_headers = {} for line in request_header_data.split("\r\n"): if line != "": line = line.replace(" ","") restemp = line.split(":") if restemp[0] == "Host" and len(restemp) == 3: restemp[1] = restemp[1] + ":" +restemp[2] request_headers[restemp[0]] = restemp[1] # print("请求头(Request Header):",request_headers) # 请求正文 request_nextdata = request_data[index0:].decode("utf-8") request_content_temp = request_nextdata.replace("\r\n", "") request_content = None if request_content_temp != "": try: request_content = json.loads(request_content_temp) except: request_content = {'content':request_content_temp} # print("请求正文:",request_content) else: pass # print("无请求正文!") return request_first,request_headers,request_content,request_nextdata def update_first_data(request_first_data,field,data): request_first_data[field] = data def update_request_headers(request_headers,field,data): request_headers[field] = data def update_request_content(request_content,field,data): request_content[field] = data def encode(request_first_data,request_headers,request_content): request_data = b"" list = ["method", 'url', 'version'] for key in list: request_data += (request_first_data[key] + " ").encode("utf-8") request_data += "\r\n".encode("utf-8") for key in request_headers.keys(): request_data += (key + ":" + request_headers[key]).encode("utf-8") request_data += "\r\n".encode("utf-8") request_data += "\r\n".encode("utf-8") if request_content != None: request_data += json.dumps(request_content).encode("utf-8") # print("重新编码以后的数据:",request_data.decode("utf-8")) return request_data
如何使用
1.解析请求数据
request_first,request_headers,request_content,request_nextdata = httpparser.parser(request_data)
2.修改或者增加各个部分的字段使用
update_first_data :修改第一行字段数据
update_request_headers :修改请求头或者增加请求头字段
update_request_content :修改请求内容字段或者增加请求内容
3.再编码三个部分的数据
encode(request_first_data,request_headers,request_content)
示例(http返回数据如下):
b'HTTP/1.0 200 OK\r\nContent-Type: text/html; charset=utf-8\r\nContent-Length: 13\r\nServer: Werkzeug/1.0.1 Python/3.7.7\r\nDate: Thu, 15 Oct 2020 02:58:54 GMT\r\n\r\n<h1>foo!</h1>'
解析出来的数据:
注意:(parser传入字节类型数据)
解析数据: {'method': 'HTTP/1.0', 'url': '200', 'version': 'OK'} {'Content-Type': 'text/html;charset=utf-8', 'Content-Length': '13', 'Server': 'Werkzeug/1.0.1Python/3.7.7', 'Date': 'Thu,15Oct202002'} {'content': '<h1>foo!</h1>'}