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Reptile.py
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Reptile.py
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#-* -coding:utf-8 -* -
#中文注释模板
import requests
from requests import Timeout
from http import cookiejar
from urllib import request, error
from urllib.parse import urlparse
from urllib.parse import quote
import string
from bs4 import BeautifulSoup
import shutil
import os
import re
from multiprocessing import Process, Queue
from copy import deepcopy
from time import sleep
from lxml import etree
import time
used_url_index = []
class Reptile:
def __init__(self,fr,headers=None,dir = r".\text"):
self.used_url = []
self.dir = dir
self.root = ""
self.datas = Queue()
self.num = 0
self.linkc = 0
self.loadpro = []
self.downpro = []
self.fr=None
if os.path.exists(self.dir) is False:
os.makedirs(self.dir)
if headers == None:
self.headers ={
'Connection':'close',
'Cache-Control': 'max-age=0',
'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8',
'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36',
'Accept-Encoding':'gzip, deflate',
'Accept-Language':'zh-CN,zh;q=0.9',
'If-None-Match':'90101f995236651aa74454922de2ad74',
'Referer':'http://m.xqishu.com', #'https://www.meitulu.com/',
'If-Modified-Since': 'Thu, 01 Jan 1970 00:00:00 GMT',
'Cookie':'UM_distinctid=16465f28788429-0fd68d048f20c2-454c092b-100200-16465f2878935c; CNZZDATA1776065=cnzz_eid%3D715763453-1530718604-null%26ntime%3D1530838479; Hm_lvt_5473ba66d3933b56f7003287f38c5db4=1530719294,1530762776,1530800508,1530842986; Hm_lpvt_5473ba66d3933b56f7003287f38c5db4=1530845949'
}
else:
self.headers = headers
pass
def craw(self,data):
totle = 0
for d in data:
if d[0] == 'url':
if d[2] not in self.used_url:
select = 0
size = 1000000
for i in range(0,self.loadpronum):
pro = self.loadpro[i]
if pro[1].qsize() <size:
select = i
size = pro[1].qsize()
self.loadpro[select][1].put(d[2])
print("准备缓存：url:%s,进程:%d"%(d[2],select))
self.used_url.append(d[2])
self.linkc += 1
for i in range(0,self.loadpronum):
totle += self.loadpro[i][1].qsize()
if totle==0:
return 0
return 1
pass
def download(self,url,rc = 5,data=None,proxies=None):
try:
rs = requests.request('GET', url, headers=self.headers,data=data)
content = rs.content
soup = BeautifulSoup(content,'lxml')
if soup.has_attr('href'):
if "该页未找到" in soup.title.string :
if rc>0:
print("找不到网页，重新下载页面:",url,rc)
soup = self.download(url, rc - 1)
else:
print("下载失败：次数用完")
soup = None
except Timeout as e:
print('Downloader download ConnectionError or Timeout:' + str(e))
soup = None
if rc > 0:
print("超时,重新下载页面:",url,rc)
soup = self.download(url, rc - 1)
except Exception as e:
print('Downloader download Exception:' + str(e))
soup = None
if rc > 0:
print("错误,重新下载页面:",url,rc)
soup = self.download(url, rc - 1)
return soup
pass
def loadMp(self,loadfile,id,rc=5):
print("缓存进程启动,id:%d"%id)
self.id = id
while True:
url = loadfile.get(True)
if url == "kill":
print("进程",id,"下载进程结束")
return 0
try:
print("缓存页面:",url,"队列长度:",loadfile.qsize())
s= time.time()
rs = requests.request('GET', url, headers=self.headers)
content = rs.content
soup = BeautifulSoup(content,'lxml')
if soup.has_attr('href'):
if "该页未找到" in soup.title.string :
if rc>0:
print("找不到网页，重新下载页面:",url,rc)
soup = self.download(url, rc - 1)
else:
print("下载失败：次数用完")
soup = None
except Timeout as e:
print('Downloader download ConnectionError or Timeout:' + str(e))
soup = None
if rc > 0:
print("超时,重新下载页面:",url,rc)
soup = self.download(url, rc - 1)
except Exception as e:
print('Downloader download Exception:' + str(e))
soup = None
if rc > 0:
print("错误,重新下载页面:",url,rc)
soup = self.download(url, rc - 1)
if soup:
data = self.fr(self,soup)
if data:
self.datas.put(data)
e= time.time()
print("缓存页面结束:",url,"耗时:%d S"%(e-s))
pass
def get(self,soup):
data = self.fr(self,soup)
return data
pass
def downloadMp(self,downfile,id):
print("下载进程启动,id:%d"%id)
self.id = id
while True:
down_file = downfile.get(True)
if down_file[0] == "kill":
print("进程",id,"下载进程结束")
return 0
try:
print("进程",id,"开始下载文件:",down_file[1],"url:",down_file[2])
s = time.time()
self.nowdown = down_file[1]
self.num = downfile.qsize()
url = quote(down_file[2],safe=string.printable)
if os.path.exists(down_file[1]):
print('本地已经存在该文件:',down_file[1])
continue
urllib.request.urlretrieve(url,down_file[1],self.callbackfunc)
e = time.time()
print("进程",id,"下载文件结束:",down_file[1],"url:",down_file[2],"耗时:%d S"%(e-s))
except Exception as e:
print("进程",id,"#download# :",str(e))
pass
def callbackfunc(self,blocknum, blocksize, totalsize):
percent = 100.0 * blocknum * blocksize / totalsize
if percent > 100:
percent = 100
print("下载进程：%d,下载%s：%.2f%%,等待队列:%d"% (self.id,self.nowdown,percent,self.num))
def saveMp(self,datas): #多进程下载
#q.full()
for d in datas:
if d[0] == 'down':
select = 0
size = 100000
for i in range(0,self.downpronum):
pro = self.downpro[i]
if pro[1].qsize() <size:
select = i
size = pro[1].qsize()
self.downpro[select][1].put(d)
pass
def run(self,root,host,linkc = 10,downcount =5,loadcount =5):
time_start=time.time()
self.nurl=root
self.root = host #root
self.num = 0
self.downpronum = downcount
self.loadpronum = loadcount
self.linkc = 0
#创建downcount个进程用于下载
self.downpro = []
for i in range(0,downcount):
downfile = Queue()
downprocess = Process(target=self.downloadMp, args=(downfile,i))
downprocess.start()
self.downpro.append([downprocess,downfile])
#创建loadcount个进程用于缓存网页
self.loadpro = []
for i in range(0,loadcount):
loadfile = Queue()
loadprocess = Process(target=self.loadMp, args=(loadfile,i))
loadprocess.start()
self.loadpro.append([loadprocess,loadfile])
#主循环
self.loadpro[0][1].put(root)
while self.linkc<=linkc:
print(self.linkc,"find file:",self.num)
data = self.datas.get(True)
print("获得数据大小:%d,剩余数据队列大小:%d"%(len(data),self.datas.qsize()))
self.saveMp(data)
if self.craw(data) == 0 :
break
for i in range(0,loadcount):
self.loadpro[i][1].put("kill")
self.loadpro[i][0].join()
for i in range(0,downcount):
self.downpro[i][1].put(["kill",0,0])
self.downpro[i][0].join()
time_end=time.time()
print("爬取结束,耗时:%d s"%(time_end-time_start))
print("爬取URL数目:%d,下载文件数目:%d"%(len(self.used_url),self.num))
print("分类数",len(used_url_index))
for uui in used_url_index:
print("main:",uui)
pass
def qs_dfr(self,soup):
txt = soup.find_all('a')
data= []
for tag in txt:
#if "/xiazai/" in self.nurl:
#print("tag:",tag)
try:
if tag.has_attr('href'):
href = tag['href']
if tag.string == "本地下载(TXT兼容性最好)":
print("get .txt",href)
#print(soup.prettify())
txtclass = soup.find_all('p',text=re.compile(r"分类："))[0]
classpath = self.dir+ os.path.sep+txtclass.string
if os.path.exists(classpath) is False:
os.makedirs(classpath)
print("创建分类",txtclass)
name = classpath+os.path.sep+href.split('/')[-1]
data.append(['down',name,href])
self.num+=1
else :
url = href
if 'http:' not in href:
url = self.root+url
url = url.replace("//", "/")
url = "http://"+url
data.append(['url',None,url,self.nurl])
if "index_" in url:
max = soup.find_all('a',id=re.compile(r"pt_mulu"))[0]
maxsize = int(max.string.split("/")[-1])+1
url = url.split("index_")[0]
if url not in used_url_index:
used_url_index.append(url)
print("maxsize:%d,in %s,used_url_index size:%d"%(maxsize,url,len(used_url_index)))
for i in range(2,maxsize):
sub_url = url+"index_%d.html"%i
#print("add url",sub_url)
data.append(['url',None,sub_url,self.nurl])
except Exception as e:
print("#dfr# :",str(e))
return data
#https://www.baidu.com/s?wd=hi
def baidu_dfr(self,soup):
txt = soup.find_all('a')
data= []
for tag in txt:
try:
if tag.has_attr('href'):
href = tag['href']
if tag.string == "本地下载(TXT兼容性最好)":
print("get .txt",href)
#print(soup.prettify())
txtclass = soup.find_all('p',text=re.compile(r"分类："))[0]
classpath = self.dir+ os.path.sep+txtclass.string
if os.path.exists(classpath) is False:
os.makedirs(classpath)
print("创建分类",txtclass)
name = classpath+os.path.sep+href.split('/')[-1]
data.append(['down',name,href])
self.num+=1
else :
url = href
if 'http:' not in href:
url = self.root+url
url = url.replace("//", "/")
url = "http://"+url
data.append(['url',None,url,self.nurl])
if "index_" in url:
max = soup.find_all('a',id=re.compile(r"pt_mulu"))[0]
maxsize = int(max.string.split("/")[-1])+1
url = url.split("index_")[0]
if url not in used_url_index:
used_url_index.append(url)
print("maxsize:%d,in %s,used_url_index size:%d"%(maxsize,url,len(used_url_index)))
for i in range(2,maxsize):
sub_url = url+"index_%d.html"%i
#print("add url",sub_url)
data.append(['url',None,sub_url,self.nurl])
except Exception as e:
print("#dfr# :",str(e))
return data
if __name__ == "__main__":
r = Reptile(fr =baidu_dfr,dir=r".\newtxt")
r.run(r"http://m.xqishu.com","m.xqishu.com",100000,downcount =5,loadcount =5)
#r.run(r"http://m.xqishu.com/",100000)