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get_index.py
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get_index.py
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from config import COOKIES
from urllib.parse import urlencode
from collections import defaultdict
import datetime
import requests
import json
import baidu_city_info
import os
import time
import random
headers = {
'Host': 'index.baidu.com',
'Connection': 'keep-alive',
'X-Requested-With': 'XMLHttpRequest',
'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36',
}
parentPath = os.path.abspath(os.path.dirname(os.getcwd()))
class BaiduIndex:
"""
百度搜索指数
"""
def __init__(self, keywords, start_date, end_date, type, idList):
self._keywords = keywords if isinstance(keywords, list) else keywords.split(',')
self.provinces = baidu_city_info.getProvinces()
self.citys = baidu_city_info.getAllCitys()
# self._startdate = datetime.datetime.strptime(start_date, '%Y-%m-%d')
# self._enddate = datetime.datetime.strptime(end_date, '%Y-%m-%d')
self._time_range_list = self.get_time_range_list(start_date, end_date)
# self._all_kind = ['all', 'pc', 'wise']
self._all_kind = ['all']
# self.result = {keyword: defaultdict(list) for keyword in self._keywords}
if type is None:
self.get_result()
elif type == 'province':
self.get_province_result(idList)
elif type == 'city':
self.get_city_result(idList)
print('数据抓取完成......在data文件夹中查看数据')
def get_result(self):
#按照全国省市遍历
for provinceId in self.provinces:
provinceName = self.provinces[provinceId];
for city in self.citys[provinceId]:
cityName = city['label'];
cityId = city['value'];
result = {keyword: defaultdict(list) for keyword in self._keywords}
self.grab_data(result, cityId, provinceName, cityName);
def get_province_result(self,provinces):
#按照需求省市遍历
for provinceId in provinces:
provinceName = self.provinces[provinceId];
for city in self.citys[provinceId]:
cityName = city['label'];
cityId = city['value'];
result = {keyword: defaultdict(list) for keyword in self._keywords}
self.grab_data(result, cityId, provinceName, cityName);
def get_city_result(self,citys):
#按照需求市遍历
for cityId in citys:
cityName, provinceName = baidu_city_info.getProvinceName4City(cityId,self.provinces,self.citys)
result = {keyword: defaultdict(list) for keyword in self._keywords}
self.grab_data(result, cityId, provinceName, cityName);
def grab_data(self,result,cityId,provinceName,cityName):
for start_date, end_date in self._time_range_list:
# 每次请求后随机休眠1-5秒(数值，精度)
sleepTime = random.uniform(1, 5)
encrypt_datas, uniqid = self.get_encrypt_datas(start_date, end_date, cityId)
key = self.get_key(uniqid)
for encrypt_data in encrypt_datas:
for kind in self._all_kind:
encrypt_data[kind]['data'] = self.decrypt_func(key, encrypt_data[kind]['data'])
self.format_data(result, encrypt_data)
time.sleep(round(sleepTime, 2));
# 生成数据文件
self.createFile(result, provinceName, cityName);
def createFile(self, result, provinceName, cityName):
for keyword in result:
path = parentPath + r'/data/' + keyword + '/' + provinceName + '/';
# 如果不存在则创建相应目录
if not os.path.exists(path):
os.makedirs(path)
#将数据写出
f = open(path + cityName + '.txt', 'w+')
for data in result[keyword]['all']:
f.write(data['date'] + " " + data['index'] + '\n');
f.close();
print("数据抓取成功===> "+keyword+"("+provinceName+'-'+cityName+')');
def get_encrypt_datas(self, start_date, end_date, area):
"""
:start_date; str, 2018-10-01
:end_date; str, 2018-10-01
"""
request_args = {
'word': ','.join(self._keywords),
'startDate': start_date,
'endDate': end_date,
'area': area,
}
url = 'http://index.baidu.com/api/SearchApi/index?' + urlencode(request_args)
html = self.http_get(url)
datas = json.loads(html)
uniqid = datas['data']['uniqid']
encrypt_datas = []
for single_data in datas['data']['userIndexes']:
encrypt_datas.append(single_data)
return (encrypt_datas, uniqid)
def get_key(self, uniqid):
"""
"""
url = 'http://index.baidu.com/Interface/api/ptbk?uniqid=%s' % uniqid
html = self.http_get(url)
datas = json.loads(html)
key = datas['data']
return key
def format_data(self, result, data):
"""
"""
keyword = data['word']
time_len = len(data['all']['data'])
start_date = data['all']['startDate']
cur_date = datetime.datetime.strptime(start_date, '%Y-%m-%d')
for i in range(time_len):
formated_data = {
'date': cur_date.strftime('%Y-%m-%d')
}
for kind in self._all_kind:
formated_data['index'] = data[kind]['data'][i]
result[keyword][kind].append(formated_data)
cur_date += datetime.timedelta(days=1)
@staticmethod
def http_get(url):
cookies = COOKIES[random.choice(list(COOKIES))]
headers['Cookie'] = cookies
response = requests.get(url, headers=headers)
if response.status_code == 200:
return response.text
else:
return None
@staticmethod
def get_time_range_list(startdate, enddate):
"""
max 6 months
"""
date_range_list = []
startdate = datetime.datetime.strptime(startdate, '%Y-%m-%d')
enddate = datetime.datetime.strptime(enddate, '%Y-%m-%d')
while 1:
tempdate = startdate + datetime.timedelta(days=300)
if tempdate > enddate:
all_days = (enddate-startdate).days
date_range_list.append((startdate, enddate))
return date_range_list
date_range_list.append((startdate, tempdate))
startdate = tempdate + datetime.timedelta(days=1)
@staticmethod
def decrypt_func(key, data):
"""
decrypt data
"""
a = key
i = data
n = {}
s = []
for o in range(len(a)//2):
n[a[o]] = a[len(a)//2 + o]
for r in range(len(data)):
s.append(n[i[r]])
return ''.join(s).split(',')
if __name__ == '__main__':
baidu_index = BaiduIndex(['张艺兴', '黄渤'], '2016-08-11', '2018-09-11')
for data in baidu_index('孙红雷', 'all'):
print(data)