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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Date    : 2014-12-22 14:46:40
# @Author  : Your Name (you@example.org)
# @Link    : http://example.org
# @Version : $Id$

import os
import urllib.request
import re
import time

header={"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8",
        "Accept-Encoding": "gzip, deflate, sdch",
        "Cache-Control": "max-age=0",
        "Accept-Language": "zh-cn,zh;q=0.8;",
        "Connection": "keep-alive",
        "Host": "www.douban.com",
        "Referer": "http://www.douban.com",
        "User-Agent": "Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko)"
                      " Chrome/39.0.2171.95 Safari/537.36"
        }


def getHtml1(url):
    req = urllib.request.Request(url, headers = header)
    html = urllib.request.urlopen(req).read().decode('utf-8')
    return html


def getHtml(url):
    u = urllib.request.URLopener()
    u.addheaders = []
    u.addheader("User-Agent", "Mozilla/5.0 (Windows NT 6.3; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko)"
                              " Chrome/39.0.2171.95 Safari/537.36")
    u.addheader("Accept-Language", "zh-cn,zh;q=0.8;",)
    u.addheader("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8")
    f = u.open(url)
    content = f.read().decode('utf-8')
    f.close()
    return content


def getPicURL(html):
    #reg = r"http://img3.douban.com/view/photo/thumb/public/p\d+\.jpg"
    reg1 = r"http://www.douban.com/online/11865076/photo/\d+/\?sortby=time"
    picURLs = re.findall(reg1, html)
    return picURLs

def openPic(picURL):
    try:
        html = getHtml(picURL)
        reg = r'<img src="http://img\d{1}.douban.com/view/photo/photo/public/p\d{10}\.jpg"'
        picURL = re.findall(reg, html)
        #print(picURL)
        picURL_open = picURL[0].split('"')
    except:
        print("!!!!!!!!!!!!!!!!!!!!!WARING:AN ERROR HAPPENED while openPic!!!!!!!!!!!!!!!!!!!!!")
    return picURL_open[1]

def picDownload(picURLs, page_num):
    try:
        download_img = ''
        dirs = os.listdir("C:\\Users\\Lyle\\Desktop\\douPIC")
        for picURL in picURLs:
            picURL_new = openPic(picURL)
            if picURL_new[-15:] not in dirs:
                file_name = picURL_new[-15:]
                download_img = urllib.request.urlretrieve(picURL_new, "C:\\Users\\Lyle\\Desktop\\douPIC\\%s" % (file_name))
                dirs.append(file_name)
            else:
                file_name = "副本" + str(picURL_new[-15:])
                download_img = urllib.request.urlretrieve(picURL_new, "C:\\Users\\Lyle\\Desktop\\douPIC\\%s" % (file_name))
            time.sleep(1)
            print("第%d页 第%d张 ......%s......... downloaded" % (page_num+1, picURLs.index(picURL)+1, picURL_new[-15:]))
    except:
        print("!!!!!!!!!!!!!!!!!!!!!WARING:AN ERROR happened wile picDownload!!!!!!!!!!!!!!!!!!!!!")
    return download_img

if __name__ == '__main__':
    num = 0
    page_num = 0
    while True:
        html = getHtml(r'http://www.douban.com/online/11865076/album/137771083/?start=%d&sortby=time' % (num+page_num*90))
        picURLs = getPicURL(html)
        print("**************第%d页下载开始***************" % (page_num+1))
        picDownload(picURLs, page_num)
        print("**************第%d页下载完成***************" % (page_num+1))
        page_num += 1