Class: Grabepg::GrabBase

Inherits:
Object
  • Object
show all
Defined in:
lib/grabepg/grab_base.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.get_proxy_list ⇒ Object

获取代理列表



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# File 'lib/grabepg/grab_base.rb', line 105

def self.get_proxy_list()
  list = gg('http://www.proxycn.cn/html_proxy/30fastproxy-1.html')
  if list.count ==0
    list = gg('http://www.proxycn.cn/html_proxy/http-1.html')
  end
  ips_ports = []
  regex_port = /(?<=<TD class="list">)[0-9]*?(?=<\/TD>)/
  regex_ip   = /(?<=a href\=whois.php\?whois\=)[0-9,.]*/
  list.each do |proxy_txt|
    port = proxy_txt[regex_port]
    ip = proxy_txt[regex_ip]
    if(ip != ""&& !port.to_s.eql?('3128'))
      port_ip = ip.to_s + ":" + port.to_s
      ips_ports << port_ip
    end
  end
  p "Count: #{ips_ports.count}"
  ips_ports
end

.get_proxylist_dianxin ⇒ Object 



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# File 'lib/grabepg/grab_base.rb', line 137

def self.get_proxylist_dianxin()
  list = gg("http://www.proxycn.cn/countryDX.php")
  if list.count ==0
    list = gg('http://www.proxycn.cn/html_proxy/http-1.html')
  end
  ips_ports = []
  regex_port = /(?<=<TD class="list">)[0-9]*?(?=<\/TD>)/
  regex_ip   = /(?<=a href\=whois.php\?whois\=)[0-9,.]*/
  list.each do |proxy_txt|
    port = proxy_txt[regex_port]
    ip = proxy_txt[regex_ip]
    if(ip != ""&& !port.to_s.eql?('3128'))
      port_ip = ip.to_s + ":" + port.to_s
      ips_ports << port_ip
    end
  end
  p "Count: #{ips_ports.count}"
  ips_ports
end

.get_topfast_list(use_time) ⇒ Object

获取指定访问速度的代理服务器 time为最慢速度的时间 int型 代表秒



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# File 'lib/grabepg/grab_base.rb', line 70

def self.get_topfast_list(use_time)
  fast_list = []
  time_use = 0
  ips_ports = get_proxy_list()
  ips_ports = get_proxylist_dianxin if ips_ports.size==0
  ips_ports.each do |ip_port|
    time_start = Time.now.to_i
    begin
      timeout(use_time) do
        doc = Nokogiri::HTML(open("http://www.baidu.com",:proxy=> "http://#{ip_port}"))
      end
      time_end = Time.now.to_i
      time_use = time_end - time_start
      p  "http://#{ip_port}   use_time:#{time_use}"
    rescue Exception =>e
      case e
        when Errno::ETIMEDOUT
          p "Use http://#{ip_port} timeout"
        when Timeout::Error
          p "Use http://#{ip_port} timeout"
        when Errno::ECONNREFUSED
          p "Use http://#{ip_port} Error connection"
        else
          p "Use http://#{ip_port} Error:#{e.to_s}"
      end
      time_use = -1
    end
    if(time_use > 0 &&time_use < 8)
      fast_list << ip_port
    end
  end
  fast_list
end

.gg(url) ⇒ Object 



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# File 'lib/grabepg/grab_base.rb', line 125

def self.gg(url)
  regex_list = /<TD class="list">.*<\/TD>/
  href =URI.parse(url)
  contxt = ""
  href.open{ |f|
    f.each_line {|line| contxt =contxt + line + "\n"}
  }
  list = contxt.scan(regex_list)
end

.proxy_list(path) ⇒ Object 



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# File 'lib/grabepg/grab_base.rb', line 33

def self.proxy_list(path)
  proxy_list = []
  crt_date = DateTime.now.strftime('%F')
  proxy_path = "%s/proxy/%s.txt" % [File.dirname(path),crt_date]
  p "Proxy_Path: #{proxy_path}"
  if File.exist?(proxy_path)
    file_proxy = File.open(proxy_path,"r")
    file_proxy.each_line {|line|
      proxy_list << line.chomp.to_s
    }
    p "Get Proxy_list:#{proxy_list}"
    file_proxy.flush
    file_proxy.close
  else
    proxy_list=GetProxyList.get_list(ENV["proxy_limit"].to_i,ENV["proxy_page"].to_i)
    dirpath = "#{File.dirname(path)}/proxy/"
    Dir.open(dirpath)  {|fna|
      fna.each do |fn|
        if(fn.to_s != ".." && fn.to_s != ".")
          File.delete("#{dirpath + fn.to_s}")
        end
      end
    }
    file_proxy = File.new(proxy_path,"a")
    proxy_list.each do |proxy|
      p "Proxy:#{proxy}"
      file_proxy.puts proxy
    end
    file_proxy.flush
    file_proxy.close
  end
  return proxy_list
end

Instance Method Details

#conversion_what_day(whatday) ⇒ Object 



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# File 'lib/grabepg/grab_base.rb', line 11

def conversion_what_day(whatday)
  ret = "星期"
  case whatday.to_i
    when 1
      ret += "一"
    when 2
      ret += "二"
    when 3
      ret += "三"
    when 4
      ret += "四"
    when 5
      ret += "五"
    when 6
      ret += "六"
    when 0
      ret += "日"
  end
  ret
end

#err_doc_proxy(proxy, proxylist, url = "", err = "") ⇒ Object 



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# File 'lib/grabepg/grab_base.rb', line 158

def err_doc_proxy(proxy,proxylist,url="",err="")
  if proxy.empty?||proxy.nil?
    proxylist.delete_at[@proxyindex]
  end


  unless @no_firest
    @no_firest = 0
  end

  @no_firest += 1
  p "*************************Proxy:#{proxy}, url:#{url} Error:#{err}"
  #proxylist.delete(proxy)    #删除出错的代理  但如果是此网页错误则会引起BUG待修复
  @proxyindex += 1
  @proxyindex=@proxyindex%@size
  doc=get_doc_with_proxy(proxylist,url) if @no_firest<4
  unless @no_firest<4
    @no_firest=0
    raise RuntimeError,"Error: #{err}"
  end
  doc
end

#get_doc_with_proxy(proxylist, url) ⇒ Object

使用代理获取url的html的doc值



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# File 'lib/grabepg/grab_base.rb', line 183

def get_doc_with_proxy(proxylist,url)
  unless proxylist.nil?||proxylist.empty?
    unless @proxyindex
      @proxyindex = 0
    end
    @size = proxylist.size
    @proxyindex=@proxyindex%proxylist.size
    if(proxylist[@proxyindex])
      proxy = proxylist[@proxyindex]
    else
      proxy = proxylist[@proxyindex+1]
    end
    begin
      ic = Iconv.new("UTF-8//IGNORE","GB2312")
      doc = Nokogiri::HTML(ic.iconv(open(url,:proxy=>"#{proxy}").read)) unless proxy.nil?||proxy.empty?
      if doc.nil?
      	p "DOC is nil"
        doc=err_doc_proxy(proxy,proxylist,url,"doc nil")
        @no_firest=0
      end
      @no_firest = 0
    rescue => err
      p "IN Rescue"
      doc=err_doc_proxy(proxy,proxylist,url,err.to_s)
      @no_firest=0
      p "Get DOC"
      @proxyindex += 1
      @proxyindex=@proxyindex%@size
      return doc
    end
    @proxyindex += 1
    @proxyindex=@proxyindex%@size
  else
    begin
      ic = Iconv.new("GB2312//IGNORE","GB2312")
      doc = Nokogiri::HTML(ic.iconv(open(url).read)) if proxy.nil?||proxy.empty?
    rescue => err
      p "Error : Proxy:#{proxy}, url:#{url}"
      raise RuntimeError,"Error: #{err.to_s} Method:get_doc_with_proxy"
    end
  end
  doc
end