#!/usr/bin/env python
# encoding: utf-8


"""
 *
 * ============================================================================
 * * 版权所有 蜘蛛出行 * *
 * 网站地址: http://www.zhizhuchuxing.com
 * ----------------------------------------------------------------------------
 * 这不是一个自由软件！您只能在不用于商业目的的前提下对程序代码进行修改和
 * 使用；不允许对程序代码以任何形式任何目的的再发布。
 * ============================================================================
 * Author By: 倪宗锋
 * FileName curl_interface.py
 * Create By 2017/12/12 13:53 $
 """
import json
import pycurl
from io import *
from urllib.parse import urlencode
import time
import logging
from django.conf import settings
import os


class CurlInterface:
    __body = ''  # 报文体
    __type = 1  # 报文数据类型 1:json 2:xml 3 发送原数据接收xml 4 发送原数据 接收json 5:都是原数据
    __response = ''  # 返回值
    __time_out = 200  # 超时时间
    __url = ''  # 接口地址
    __verb = 'get'  # 传值方式
    __curl_get_info = ''  # 校验概要
    __log_msg = ''  # 日志
    __curl = ''  # curl对象
    __total_time = 0 # 总耗时

    def __init__(self, body, type):
        """
        初始化curl类
        :param body: 报文体
        :param type: 报文数据类型 1:json 2:xml 3 发送原数据接收xml 4 发送原数据 接收json 5:都是原数据
        """
        self.__type = type
        self.__set_body(body)

    def __set_body(self, body):
        """
        设置报文体
        :param body:
        :return: array|string
        """
        if self.__type == 1:
            self.__body = json.dumps(body)
        elif self.__type == 2:
            self.__body = body
        elif self.__type == 3:
            self.__body = urlencode(body)
        elif self.__type == 4:
            self.__body = urlencode(body)
        else:
            self.__body = urlencode(body)

    def exec(self, url, verb):
        """
        curl执行
        :param url: 接口地址
        :param verb: post|get 传值方式
        :return:
        """
        try:
            self.__verb = verb
            self.__url = url
            self.__curl = pycurl.Curl()
            b = BytesIO()
            self.__curl.setopt(pycurl.WRITEFUNCTION, b.write)
            self.__curl.setopt(pycurl.URL, url)  # 路径
            self.__curl.setopt(pycurl.ENCODING, 'gzip,deflate')  # 编码格式
            self.__curl.setopt(pycurl.FOLLOWLOCATION, 1)
            # self.__curl.setopt(pycurl.VERBOSE, 1) # 打印调试信息
            # self.__curl.setopt(pycurl.HEADER, 1)#输出头部信息
            self.__curl.setopt(pycurl.FOLLOWLOCATION, 1)
            self.__curl.setopt(pycurl.MAXREDIRS, 5)  # 指定HTTP重定向的最大数
            self.__curl.setopt(pycurl.DNS_CACHE_TIMEOUT, 60 * 60 * 24)  # DNS解析缓存时间  不要调低 第一次可能时间很长 故需要长时间缓存dns解析
            if self.__verb == 'POST':
                self.__curl.setopt(pycurl.POST, 1)
                self.__curl.setopt(pycurl.POSTFIELDS, self.__body)
            else:
                self.__curl.setopt(pycurl.HTTPGET, 1)
            self.__curl.perform()
            self.__response = b.getvalue().decode("utf-8")
            self.__total_time = self.__curl.getinfo(pycurl.TOTAL_TIME)
            b.close()
            self.__curl.close()
            return self.__set_return()
        except BaseException as e:
            return {'code': 1, 'msg': '接口返回异常', 'data': ''}

    def __set_return(self):
        """
        设置返回值
        :return:
        """
        if self.__type == 1:  # 返回json
            result = json.loads(self.__response)
        elif self.__type == 2:  # 返回xml
            result = self.__response
        elif self.__type == 3:  # 返回xml
            result = self.__response
        elif self.__type == 4:  # 返回json数据
            result = json.loads(self.__response)
        else:  # 返回原数据
            result = self.__response
        res = result
        return res

    def __del__(self):
        """
        记录访问日志
        :return:
        """
        self.__log_msg = ''
        self.__log_msg += time.strftime('%Y-%m-%d %H:%I:%S', time.localtime(time.time())) + '\n'
        self.__log_msg += 'curl:' + self.__url + '  method:' + self.__verb + '\n'
        self.__log_msg += 'body:' + self.__body + '\n'
        self.__log_msg += 'response:' + self.__response + '\n\n'
        date = time.strftime('%Y-%m-%d', time.localtime(time.time()))
        log_file = settings.BASE_DIR + '/log/curl/' + date + '.log'  # 日志路径
        if os.path.exists(log_file) is False:  # 日志文件不存在则创建
            fobj = open(log_file, 'w')
            fobj.close()
        logging.basicConfig(filename=log_file, filemode='w', level=logging.INFO)
        logging.info(self.__log_msg)