Python 爬虫插件

#coding:utf-8
import sys,urllib2,re,Queue
sys.path.append("..")

from lib.Http_Class import Http_Class
from BeautifulSoup import BeautifulSoup

####################################
#
#        Spider 爬虫模块
#
####################################

class Spider_module:
    def setW3AScan(self,w3ascan):
        self.w3ascan=w3ascan
        self.result_list={}
        self.q_list=Queue.Queue()
        self.tmp_list=Queue.Queue()

    def start(self,aa):
        url="http://lucifr.com/"
        print "[*] 爬虫目标:"+url
        self.result_list.update({url:0})
        try:
            while True:
                # 判断爬虫是否有爬过
                for url in self.result_list:
                    if self.result_list[url]==0:
                        self.q_list.put(url)
                        self.result_list[url]=1

                # 判断任务队列是否为空,如果是则直接退出
                # 否则处理任务
                if self.q_list.empty():
                    print "[*] 结束爬虫任务."
                    break
                else:
                    for tmp in range(self.q_list.qsize()):
                        spider_url=self.q_list.get()
                        obj=Http_Class()
                        try:
                            html=obj._do("get",spider_url)
                        except:
                            self.w3ascan.log_create("url: %s Field! " % spider_url,"Spider_module")
                            print "url: %s Field! " % spider_url
                            continue
                        soup=BeautifulSoup(html)
                        links=soup.findAll('a')
                        for link in links:
                            _url=link.get('href').encode('utf-8')
                            if re.match('^(javascript|:;|#|mailto)',_url) or _url is None or re.match('.(jpg|png|bmp|mp3|wma|wmv|gz|zip|rar|iso|pdf|txt|db)$',_url):
                                continue
                            if re.match('^(http|https)',_url):
                                if not re.match('^'+url,_url):
                                    continue
                                else:
                                    if self.result_list.has_key(url):
                                        continue
                                    else:
                                        rst=_url.encode('utf-8')
                                        print "[*][!] 发现新连接: "+rst
                                        self.result_list.update({rst:0})
                            else:
                                if self.result_list.has_key(url+_url):
                                    continue
                                else:
                                    rst=url+_url
                                    print "[*][!] 发现新连接: "+rst.encode('utf-8')
                                    self.result_list.update({rst.encode('utf-8'):0})

        except Exception,error:
            print "[*] 发生异常情况,捕获并写入日志。"
            self.w3ascan.log_create("Url: %s get Url Error! Source: %s" % (url,error),"Spider_module")

    def save(self):
        print "[*]保存爬虫结果"

def getPluginClass():
    return Spider_module

if __name__=="__main__":
    t=Spider_module()
    t.start("aaa")

 

posted @ 2014-04-29 13:49  墨迹哥's  阅读(679)  评论(0编辑  收藏  举报