def get_items_and_pagination(self, response):
request_again = self.error_handler(response)
if request_again:
yield request_again
return
items_extractor = LinkExtractor(deny=[r'\/image\/', r'\/map'],
restrict_xpaths='.//div[@class="itemInfo"]/h2')
items_links = items_extractor.extract_links(response)
for link in items_links:
yield Request(url=link.url, callback=self.parse_item)
if response.xpath('.//a[@class="next"]').extract():
total_quantity = response.xpath(
'(.//div[@class="pageResults"]/span[@class="results"]'
'/text()[normalize-space()])[2]').re(r'\d+')
if total_quantity:
total_quantity = int(total_quantity[0])
pages = total_quantity/25
page_range = range(1, pages+2)
category = cond_set_value(response.xpath(
'.//input[@id="FrmWho"]/@value').extract())
quoted_category = quote_plus(category)
for page in page_range:
next_url = self.pagination_pattern.format(prase=quoted_category,
page=page)
yield Request(url=next_url, headers=self.pagination_headers,
dont_filter=True, method='POST',
callback=self.parse_pagination)
def get_companies_links(self, response):
companies_link_extractor = LinkExtractor(allow=r'\/company_\d{5,7}')
companies_links = companies_link_extractor.extract_links(response)
for link in companies_links:
yield Request(url=link.url,
callback=self.parse_item,
# cookies=None,
meta={'category': response.meta.get('category')})
def _extract_links(self, response, params):
""" parse links from response
@return hrefs
"""
params['allow_domains'] = tuple(self.allowed_domains)
link_extractor = LinkExtractor(**params)
return link_extractor.extract_links(response)
def parse(self, response):
le = LinkExtractor()
for link in le.extract_links(response):
url = urljoin(response.url, link.url)
yield scrapy.Request(url, self.parse_link, meta={
'splash': {
'args': {'har': 1, 'html': 0},
}
})
def get_categories(self, response):
# http://www.construction.co.uk/double-glazing-repairs/category_33.htm
link_extractor = LinkExtractor(allow=r'\/category_\d+')
links = link_extractor.extract_links(response)
for link in links:
category = link.text
yield Request(url=link.url,
callback=self.get_companies_links_by_letter,
meta={'category':category})
def get_companies_links_by_letter(self, response):
# http://www.construction.co.uk/heating-contractors-and-consultants/22_A.htm
letter_link_extractor = LinkExtractor(allow=r'\/\d+_[A-Z].htm')
links_by_letter = letter_link_extractor.extract_links(response)
if links_by_letter:
for link in links_by_letter:
yield Request(url=link.url,
callback=self.get_companies_links,
meta={'category': response.meta.get('category')})
else:
# there is no letters pagination at the page
for request in self.get_companies_links(response):
yield request
def parse_items_links(self, response):
categories_links_extractor = LinkExtractor(restrict_xpaths='.//div[@class="categoryListContainer"]')
cat_links = categories_links_extractor.extract_links(response)
for link in cat_links:
yield Request(url=link.url, callback=self.parse_items_links)
items_links_extractor = LinkExtractor(restrict_xpaths='.//div[@class="directory-listing"]/h3')
items_links = items_links_extractor.extract_links(response)
for link in items_links:
yield Request(url=link.url, callback=self.parse_item)
pagination_link = cond_set_value(response.xpath('.//a[@class="more"]/@href').extract())
if pagination_link:
full_pagination_link = urljoin(self.start_urls[0], pagination_link)
yield Request(url=full_pagination_link, callback=self.parse_items_links)
def parse_categories(self, response):
request_again = self.error_handler(response)
if request_again:
yield request_again
return
categories_extractor = LinkExtractor(
restrict_xpaths='.//ul[@class="popTermsList"]')
categories_links = categories_extractor.extract_links(response)
for link in categories_links:
yield Request(url=link.url, callback=self.get_items_and_pagination)
letters_extractor = LinkExtractor(
restrict_xpaths='.//div[@class="popTermsNavBar"]')
letters_links = letters_extractor.extract_links(response)
for link in letters_links:
yield Request(url=link.url, callback=self.parse_categories)
class tripadvisorSpider(CrawlSpider):
name = "istanbulrestorant"
DOWNLOAD_DELAY = 1
allowed_domains = ["tripadvisor.com.tr"]
start_urls = []
def my_range(start, end, step):
while start <= end:
yield start
start += step
for i in my_range(30, 10950, 30):
start_urls.append(
'http://www.tripadvisor.com.tr/Restaurants-g293974-oa' + str(i) +
'-Istanbul.html')
rules = [Rule(LinkExtractor(allow=['/Restaurant_Review.*']), 'parse_page')]
def parse_page(self, response):
item = items.IstanbulrestorantscrapItem()
item['isim'] = response.xpath(
'//*[@id="BREADCRUMBS"]/li[last()]/text()')[0].extract()
item['adres'] = response.xpath(
'//*[@id="ABOVE_THE_FOLD"]/div[1]/div[2]/div/div[2]/div/div[1]/div/address/span/span/span[1]/text()'
)[0].extract()
item['tel'] = response.xpath(
'//*[@id="ABOVE_THE_FOLD"]/div[1]/div[2]/div/div[2]/div/div[1]/div/div/div/div[1]/div/text()'
)[0].extract()
yield item
class NewyorkCrawlerSpider(CrawlSpider):
name = 'newyorkcrawler'
idx = 0
allowed_domains = ['www.nytimes.com']
start_urls = ['https://www.nytimes.com/section/world/europe']
rules = (Rule(LinkExtractor(allow=[r'\d{4}/\d{2}/\d{2}/[^/]+']),
callback="parse_item",
follow=True), )
def parse_item(self, response):
self.log("Scraping: " + response.url)
item = NytItem()
item['url'] = response.url
a = Article(response.url)
# According to the source, this doesn't download anything (i.e. opens a connection), if input_html is not None
a.download(input_html=response.text)
a.parse()
item['title'] = a.title
item['authors'] = a.authors
item['body'] = a.text
# TODO: add tags
f = open('articles/%d-%s' % (self.idx, a.title), 'w+', encoding='utf8')
f.writelines(a.authors)
f.write("\n" + response.url + "\n")
f.write(a.text)
f.close()
self.idx += 1
return item
class CsdnSpider(CrawlSpider):
name='csdn'
allowed_domains=['csdn.net']
start_urls=['http://blog.csdn.net/qq_35037977/article/list/1']
rules=[
Rule(LinkExtractor(allow=r'/qq_35037977/article/list/\d+',restrict_xpaths="//a[contains(., %s)]"%nextpage),follow=True),
Rule(LinkExtractor(allow=r'/qq_35037977/article/details/\d+',restrict_css='.link_title'),callback='parse_csdn')
]
def parse_csdn(self,response):
l=ItemLoader(item=CsdnItem(),response=response)
l.add_css('title','#article_details .link_title a::text')
l.add_value('link',response.url)
l.add_css('posttime','.article_r .link_postdate::text')
l.add_css('views','.article_r .link_view::text')
yield l.load_item()
class MovieSpider(CrawlSpider):
name = "movie"
allowed_domains = ["douban.com"]
start_urls = ["http://movie.douban.com/tag/%s?type=S" % one_tag]
index = 0
rules = (
# 提取匹配 'http://movie.douban.com/tag/爱情' 的翻页
# Rule(LinkExtractor(allow=(('tag/%s.start=' % quote(one_tag.encode("utf-8"))), ))),
# 提取匹配 'subject/\d+' 的链接并使用spider的parse_item方法进行分析
Rule(LinkExtractor(allow=('subject/\d+', )), callback='parse_item'), )
def parse_item(self, response):
item = MovieItem()
item['title'] = response.xpath(
"//div[@id='content']/h1/span[1]/text()").extract()[0]
item['url'] = response.url
try:
item['desc'] = response.xpath(
"//div[@id='link-report']/span/text()").extract()[0].strip()
except:
item['desc'] = ''
try:
item['score'] = response.xpath(
"//strong[@class='ll rating_num']/text()").extract()[0]
except:
item['score'] = 0
item['image_urls'] = response.xpath(
"//div[@id='mainpic']/a[@class='nbgnbg']/img/@src").extract()
print item['title'], item['score'], item['url'], item['desc']
yield item
class ZZSpider(CrawlSpider):
name = "zz_gunter-spb"
allowed_domains = ["livejournal.com"]
start_urls = [
#"http://tanyant.livejournal.com/118267.html"
#"http://gunter-spb.livejournal.com/14196.html"
#"http://gunter-spb.livejournal.com/2387127.html"
#"http://gunter-spb.livejournal.com/610032.html"
"http://gunter-spb.livejournal.com/599654.html"
]
rules = (
Rule(
LinkExtractor(
#allow=('http://tanyant.livejournal.com/\d+\.html',),
deny=('tag', 'reply', 'thread', 'page'),
# xpath for snorapp, tanyant
# restrict_xpaths=('//a[@title="Previous"]')
restrict_xpaths=("//i[@class='b-controls-bg']/parent::a"),
),
callback='parse_page',
follow=True), )
def parse_page(self, response):
# use scrapy shell to find xpath
#from scrapy.shell import inspect_response
#inspect_response(response)
item = ScraperItem()
item['url'] = response.url
try:
item['title'] = response.xpath('//h1/text()').extract()[0]
except IndexError:
item['title'] = ""
try:
item['text'] = " ".join(
response.xpath('//article[2]/child::node()').extract())
except IndexError:
item['text'] = ''
try:
time = response.xpath("//time[1]/text()[3]").extract()[0]
date = response.xpath("//time[1]/a/text()").extract()
date.append(time)
item['date'] = date
except IndexError:
item['date'] = ''
try:
item['comment_count'] = response.xpath(
'//span[@class="js-amount"]/text()').extract()[0]
except IndexError:
item['comment_count'] = '0'
yield item
class Mess(CrawlSpider):
My_Tree.objects.all().delete()
name = 'mess'
allowed_domains = ["localhost"]
start_urls = [
start_url(),
]
rules = [
Rule(
LinkExtractor(restrict_xpaths=('//a[@class="next"]')),
callback='parse_item',
follow=True,
)
]
def parse_item(self, response):
hxs = response
item = MyScrapyItem()
item['name'] = hxs.xpath(
'//*[@id="content"]/a/button/text()').extract()
item['url'] = response.url
item['link'] = hxs.xpath('//a/@href').extract()
s = My_Tree(url=item['url'], link=item['link'], name=item['name'])
s.save()
print item
return item
class ExampleSpider(CrawlSpider):
name = 'pic'
allowed_domains = ['www.zhihu.com']
start_urls = ['https://www.zhihu.com/topic/19643259/hot']
#item = ZhihuItem()
rules = [
Rule(LinkExtractor(allow=['/question/.*','/people/.*']),
callback = 'parse_item',
follow = True)
]
def parse_item(self, response):
#print response.css('h1').extract()
image = ZhihuItem()
#head_url = re.sub(r'_l\.', '.', ''.join(response.css('.body .Avatar--l::attr(src)').extract()))
image['title'] = response.xpath("//img/@alt").extract()
#image['image_urls'] = arr
rel = response.xpath("//img/@srcset").extract()
#print 'adsfaksjdfawp9eifh', rel
#print 'asdkfaiehfkajsbdfj', rel[0]
for i in range(len(rel)):
rel[i] = re.sub(' 2x','',rel[i])
image['image_urls'] = rel
#rel[0] = re.sub(' 2x','',rel[0])
#image['image_urls'] = [rel[0]]
#print image['image_urls']
return image
class tiebaSpider(CrawlSpider):
name = "tieba"
allowed_domains = ["baidu.com"]
start_urls = ["http://tieba.baidu.com/p/5051125142"]
rules = [
Rule(LinkExtractor(allow=("/5051125142\?pn=(\d)")),
follow=True,
callback='parse_cont'),
]
def parse11(self, response):
pass
def parse_cont(self, response):
items = []
select = Selector(response)
text = select.css('div.l_post.j_l_post.l_post_bright')
# authors = select.css('div.d_author')
# contents = select.css('div.d_post_content_main')
for list in text:
item = BaiduttItem()
item['name'] = list.css('.d_author ul li.d_name a').xpath(
'text()').extract()
item['content'] = list.css('.d_post_content_main cc div').xpath(
'text()').extract()
items.append(item)
return items
def __init__(self, *args, **kwargs):
# run using: scrapy crawl xss_spider -a url='http://example.com'
super(XSSspider, self).__init__(*args, **kwargs)
self.start_urls = [kwargs.get('url')]
hostname = urlparse(self.start_urls[0]).hostname
# With subdomains
self.allowed_domains = [hostname] # adding [] around the value seems to allow it to crawl subdomain of value
self.delim = '1zqj'
# semi colon goes on end because sometimes it cuts stuff off like
# gruyere or the second cookie delim
self.test_str = '\'"(){}<x>:/'
# Login details
self.login_user = kwargs.get('user')
if self.login_user == 'None':
self.login_user = None
else:
# Don't hit links with 'logout' in them since self.login_user exists
self.rules = (Rule(LinkExtractor(deny=('logout')), callback='parse_resp', follow=True), )
if kwargs.get('pw') == 'None' and self.login_user is not None:
self.login_pass = raw_input("Please enter the password: ")
else:
self.login_pass = kwargs.get('pw')
# HTTP Basic Auth
self.basic_auth = kwargs.get('basic')
if self.basic_auth == 'true':
self.http_user = self.login_user
self.http_pass = self.login_pass
class MovieSpider(CrawlSpider):
name='vDown'
allowed_domains=['91porn.it']
searchText='我'
start_urls=['http://www.91porn.it/search?search_query='+urllib.quote(searchText)+'&search_type=videos']
rules=[
#Rule(LinkExtractor(allow=(r'http://movie.douban.com/top250\?start=\d+.*'))),
#Rule(LinkExtractor(allow=(r'class=\"well well-sm[\s\S]*?href=\"(\S+?)\"[\s\S]*?img[\s]src=\"(\S+?)\"')),callback='parse_item'),
#Rule(LinkExtractor(allow=(r'http://www.91porn.it/video/\d+"')),callback='parse_item')
Rule(LinkExtractor(allow=(r'/video/\d+/"')),callback='parse_item')
]
count=2
def parse_item(self,response):
item=MyItem()
item['url']=response.url
print(response.url)
videoPat=r'\<video[\s\S]*?poster=\"(\S+?)\"[\s\S]*\<source\s+src=\"(\S+?)\"';
m=re.match(videoPat,response.body)
print(m.groups())
#item['file_urls']=response.xpath("//img/@src").extract()
return item
class Image1Spider(CrawlSpider):
name = "image1"
allowed_domains = [
"developers.google.com",
"developer.chrome.com",
"developer.android.com",
"cloud.google.com",
"googledevelopers.blogspot.com",
#"appurify.com",
#"www.chromium.org",
#"www.firebase.com",
#"golang.org",
#"www.html5rocks.com",
#"www.stackdriver.com",
"www.dartlang.org",
"developer.nest.com",
"www.polymer-project.org",
]
start_urls = ('https://developers.google.com/', )
rules = [
Rule(LinkExtractor(allow=[r'.*']), callback='parse_item', follow=True)
]
def parse_item(self, response):
content = scrapy.Selector(response=response).xpath('//body')
for node in content:
item = GioItem()
item['url'] = response.url
item['image_urls'] = node.xpath('//img/@src').extract()
yield item
class tripadvisorSpider(CrawlSpider):
name = "karadenizOtel"
DOWNLOAD_DELAY = 1
allowed_domains = ["tripadvisor.com.tr"]
start_urls = []
def my_range(start, end, step):
while start <= end:
yield start
start += step
for i in my_range(0, 180, 30):
start_urls.append('http://www.tripadvisor.com.tr/Hotels-g673665-oa' +
str(i) + '-Turkish_Black_Sea_Coast-Hotels.html')
rules = [Rule(LinkExtractor(allow=['/Hotel_Review.*'], ), 'parse_page')]
def parse_page(self, response):
item = items.KaradenizotelscrapItem()
item['isim'] = response.xpath('//*[@id="HEADING"]/text()')[1].extract()
item['adres'] = response.xpath(
'//*[@id="HEADING_GROUP"]/div/div[3]/address/div[1]/span/span[1]/text()'
)[0].extract()
item['sehir'] = response.xpath(
'//*[@id="BREADCRUMBS"]/li[4]/a/span/text()')[0].extract()
item['ilce'] = response.xpath(
'//*[@id="BREADCRUMBS"]/li[5]/a/span/text()')[0].extract()
yield item
class PicSpider(CrawlSpider):
name = "first"
allowed_domains = ["www.reddit.com"]
start_urls = ['http://www.reddit.com/r/paypal/']
rules = [
Rule(LinkExtractor(allow=['/r/paypal/\?count=\d*&after=\w*']),
callback='parse_item',
follow=True)
]
# rules = [
# # Traverse the in the /r/pics subreddit. When you don't pass
# # callback then follow=True by default.
# # It's also important to NOT override the parse method
# # the parse method is used by the CrawlSpider continuously extract links
# Rule(LinkExtractor(
# allow=['/r/pics/\?count=\d*&after=\w*']),
# callback='parse_item',
# follow=True),
# ]
def parse_item(self, response):
selector_list = response.css('div.thing')
for selector in selector_list:
item = PicItem()
item['title'] = selector.xpath('div/p/a/text()').extract()
item['url'] = selector.xpath('a/@href').extract()
yield item
class DBMSpider(CrawlSpider):
# 爬虫名称，运行的时候用到
name = "doubanMovie"
# 允许的域名
allowed_domains = ["movie.douban.com"]
# 爬虫的种子地址，即第一个地址
start_urls = ["https://movie.douban.com"]
#该spider将从https://movie.douban.com的首页开始爬取，获取subject的链接后使用parse_item方法。
rules = (
# 这里会将符合r'/subject/\d+/'这个正则的地址的网页用parse_subject这个方法解析
Rule(LinkExtractor(allow=(r'/subject/\d+/', )),
callback='parse_subject',
follow=True), )
# 这里可以用xpath或者css选择器来获取内容，直接用chrome开发者工具就可以了
def parse_subject(self, response):
item = DoubanmovieItem()
# todo extract item content
item['movie_name'] = response.xpath(
'//*[@id="content"]/h1/span[1]').xpath(
'normalize-space(string(.))').extract()[0]
item['intro'] = response.xpath('//*[@id="link-report"]/span').xpath(
'normalize-space(string(.))').extract()[0]
item['actors'] = response.xpath(
'//*[@id="info"]/span[3]/span[2]').xpath(
'normalize-space(string(.))').extract()
item['date'] = response.xpath('//*[@id="info"]/span[11]').xpath(
'normalize-space(string(.))').extract()[0]
item['director'] = response.xpath(
'//*[@id="info"]/span[1]/span[2]/a').xpath(
'normalize-space(string(.))').extract()[0]
return item
class MySpider(CrawlSpider):
name = "Huntsman"
allowed_domains = ["essex.ac.uk"]
start_urls = ["https://www.essex.ac.uk/"]
rules = [
Rule(LinkExtractor(allow=('/www.essex.ac.uk/((?!:).)*$'), ),
callback="parse_item",
follow=True)
]
def parse_item(self, response):
item = BeastItem()
url = response.url
item["url"] = url
title = response.xpath("//title/text()")[0].extract()
item["title"] = title
description = response.xpath(
"//meta[@name='description']/@content").extract()
item["description"] = description
body = response.xpath('//body//text()').re(r'(\w[ ,\'\-\w]+\w)')
item["body"] = body
return item
class StackCrawlerSpider(CrawlSpider):
name = 'stack_crawler'
allowed_domains = ['stackoverflow.com']
# start_urls = ['http://www.stackoverflow.com/']
start_urls = ['http://stackoverflow.com/questions?pagesize=50&sort=newest']
# rules = (
# Rule(LinkExtractor(allow=r'Items/'), callback='parse_item', follow=True),
# )
rules = [
Rule(LinkExtractor(allow=r'questions\?page=[0-9]&sort=newest'),
callback='parse_item',
follow=True)
]
def parse_item(self, response):
# i = StackItem()
# #i['domain_id'] = response.xpath('//input[@id="sid"]/@value').extract()
# #i['name'] = response.xpath('//div[@id="name"]').extract()
# #i['description'] = response.xpath('//div[@id="description"]').extract()
# return i
questions = response.xpath('//div[@class="summary"]/h3')
for question in questions:
item = StackItem()
item['url'] = question.xpath(
'a[@class="question-hyperlink"]/@href').extract()[0]
item['title'] = question.xpath(
'a[@class="question-hyperlink"]/text()').extract()[0]
yield item
class BaiduSpider(CrawlSpider):
name = "baidu"
allowed_domains = ["baidu.com"]
start_urls = ('http://shouji.baidu.com/software/?from=as', )
rules = [
Rule(LinkExtractor(allow=("http://shouji.baidu.com/soft/item", )),
callback='parse_app',
follow=True),
]
def parse_app(self, response):
apk = AppItem()
apk['url'] = response.url
apk['name'] = response.css('.app-name>span').extract()[0]
apk['rate'] = response.css(".star-percent").xpath(
"@style").extract()[0]
apk['size'] = response.css(".detail > span.size").xpath(
"text()").extract()[0]
apk['category'] = response.css(".nav").css("a")[1].xpath(
"text()").extract()[0]
apk['apk_url'] = response.css(".apk").xpath("@href").extract()[0]
apk['screenshots'] = response.css(".imagefix").xpath("@src").extract()
apk['download_num'] = response.css("span.download-num").xpath(
"text()").extract()[0]
yield apk
class LogoSpider(CrawlSpider):
name = 'logo'
allowed_domains = ['pcauto.com.cn']
start_urls = ['http://www.pcauto.com.cn/zt/chebiao/guochan/']
rules = (
Rule(LinkExtractor(allow=(r'http://www.pcauto.com.cn/zt/chebiao/.*?/$')), callback='parse_page'),
)
def parse_page(self, response):
# print(response.text)
sel = Selector(response)
# print(sel)
country = "".join(sel.xpath('//div[@class="th"]/span[@class="mark"]/a/text()').extract())
# carname = sel.xpath('//div[@class="dPic"]/i[@class="iPic"]/a/img/@alt').extract()
# imageurl = sel.xpath('//div[@class="dPic"]/i[@class="iPic"]/a/img/@src').extract()
# item=LogoItem(country=country, carname=carname, imageurl=imageurl)
# yield item
carnames = sel.xpath('//div[@class="dPic"]/i[@class="iPic"]/a/img/@alt').extract()
for carname in carnames:
imageurl= sel.xpath('//div[@class="dPic"]/i[@class="iPic"]/a/img[@alt="'+carname+'"]/@src').extract()
# print(country, carname, imageurl)
item = LogoItem(country=country, carname=carname, imageurl=imageurl)
yield item
class GlassdoorSpider(scrapy.Spider):
name = 'glassdoor'
allowed_domains = [
'glassdoor.com', 'www.glassdoor.com', 'www.glassdoor.com.au'
]
start_urls = ['https://www.glassdoor.com']
rules = [
Rule(LinkExtractor(allow=r'\/Reviews\/.*'),
callback='parse',
follow=True)
]
def start_requests(self):
urls = [
'https://www.glassdoor.com.au/Reviews/sydney-reviews-SRCH_IL.0,6_IM962.htm',
]
for url in urls:
yield scrapy.Request(url=url, callback=self.parse)
def parse(self, response):
for company in response.css('div.eiHdrModule'):
yield {
'name':
company.css("a.tightAll::text").extract_first().strip(),
'score': company.css("span.bigRating::text").extract_first(),
'reviews': company.css("span.num::text")[0].extract().strip(),
'salaries': company.css("span.num::text")[1].extract().strip(),
'interviews':
company.css("span.num::text")[2].extract().strip(),
}
for href in response.css('li.page a::attr(href)'):
yield response.follow(href, callback=self.parse)
class ImageSpider(CrawlSpider):
name = "picSpider"
start_urls = ["https://www.reddit.com/r/pics/"]
allowed_domains = [
#Domain allowed to scrape
"www.reddit.com"
]
rules = (
# Extract links matching 'below Regex'
# and follow links from them (No callback means follow=True by default).
Rule(LinkExtractor(allow=(".*\/r\/pics\/\?count=\d*&after=(\w*)", )),
callback='parse_next',
follow=True), )
def parse_next(self, response):
#Selecting list of elements and parsing one by one
selector_list = response.xpath("//div[contains(@class,'thing')]")
for selector in selector_list:
print(selector)
item = ItemStack.PicItem()
item['title'] = selector.xpath("div/p/a/text()").extract()
# item['link_url']=selector.xpath('p[contains(@class,\'title\')]/a/@href').extract()
item['image_urls'] = selector.xpath(
"a[contains(@class,'thumbnail')]/@href").extract()
yield item
class MoocSpider(CrawlSpider):
name = 'mooc'
allowed_domains = ['mooc.cn']
start_urls = []
for i in range(1, 37):
start_urls.append('http://www.mooc.cn/course/page/%d' % i)
rules = [Rule(LinkExtractor(allow=['/.*\.html']), 'parse_mooc')]
def parse_mooc(self, response):
mooc = MoocItem()
moocs = []
mooc['url'] = response.url
ch_name = response.xpath("//h1/text()").extract()
en_name = response.xpath(
"//div[@class='course_enname']/text()").extract()
university = response.xpath("//h2[1]/text()").extract()
time = response.xpath("//div[@class='coursetime']/text()").extract()
desc = response.xpath(
"//div[@class='content-entry clearfix']/p[1]/text()").extract()
mooc['ch_name'] = [m.encode('utf-8') for m in ch_name]
mooc['en_name'] = [m.encode('utf-8') for m in en_name]
mooc['university'] = [m.encode('utf-8') for m in university]
mooc['time'] = [m.encode('utf-8') for m in time]
mooc['desc'] = [m.encode('utf-8') for m in desc]
moocs.append(mooc)
return moocs
class Jeeran(CrawlSpider):
name = 'jeeran'
allowed_domains = ['yellowpages.com.eg']
start_urls = ['http://www.yellowpages.com.eg/en/category/pharmacies']
#depth_limit= 0
rules = (Rule(LinkExtractor(allow=('')), callback='parse_obj',
follow=True), )
class PitchforkSpider(CrawlSpider):
name = 'pitchfork'
allowed_domains = ['pitchfork.com']
start_urls = [
'https://pitchfork.com/reviews/albums/',
'https://pitchfork.com/reviews/albums/?page=2',
'https://pitchfork.com/reviews/albums/?page=3',
'https://pitchfork.com/reviews/albums/?page=4',
'https://pitchfork.com/reviews/albums/?page=5'
]
rules = [Rule(LinkExtractor(allow=''), callback='parse', follow=True)]
def parse(self, response):
artists = response.xpath('//ul/li[1]/text()').extract()
album = response.xpath('//h2/text()').extract()
urls = response.xpath('//div[@class = "review"]/a/@href').extract()
url = [BASE_URL + link for link in urls]
for link in url:
request = scrapy.Request(link,
callback=self.review_text,
dont_filter=True)
yield request
def review_text(self, response):
text = response.xpath('//p/text()').extract()
title = response.xpath('//h2/ul/li/a/text()').extract()
album = response.xpath('//h1/text()').extract()
yield ReviewItem(artists=title, album=album, text=text)
def __init__(self, seed_urls=None, save_html=1, use_splash=1, screenshot_dir='/memex-pinterest/ui/static/images/screenshots', op_time=10, **kwargs):
'''
Constructs spider instance from command=line or scrapyd daemon.
:param seed_urls: Comma-separated list of URLs, if empty crawler will be following not crawled URLs from storage
:param save_html: boolean 0/1
:param use_splash: boolean 0/1
:param screenshot_dir: used only when use_splash=1
:param op_time: operating time in minutes, negative - don't use that constraint
:param kwargs:
:return:
'''
super(TopicalFinder, self).__init__(screenshot_dir=screenshot_dir, **kwargs)
self.screenshot_dir = screenshot_dir
log.msg("SCREENSHOT DIR IS SET TO: %s" % str(screenshot_dir), _level=log.DEBUG)
if seed_urls:
self.start_urls = [add_scheme_if_missing(url) for url in seed_urls.split(',')]
self.ranker = Ranker.load()
self.linkextractor = LinkExtractor()
self.save_html = bool(save_html)
self.use_splash = bool(use_splash)
self.operating_time = int(op_time) * 60
self.start_time = datetime.utcnow()
self.finishing = False
class tripadvisorSpider(CrawlSpider):
name = "ege"
DOWNLOAD_DELAY = 1
allowed_domains = ["tripadvisor.com.tr"]
start_urls = [
"http://www.tripadvisor.com.tr/Restaurants-g657096-Turkish_Aegean_Coast.html"
]
def my_range(start, end, step):
while start <= end:
yield start
start += step
#for i in my_range(30, 6900, 30):
#start_urls.append('http://www.tripadvisor.com.tr/Restaurants-g657096-oa'+str(i)+'-Turkish_Aegean_Coast.html')
rules = [Rule(LinkExtractor(allow=['/Restaurant_Review.*'],deny = 'http://www.tripadvisor.com.tr/Restaurants-g657096-Turkish_Aegean_Coast.html'), 'parse_page')]
def parse_page(self, response):
item = items.EgerestorantscrapItem()
item['isim'] = response.xpath('//*[@id="BREADCRUMBS"]/li[last()]/text()')[0].extract()
item['adres'] = response.xpath('//*[@id="ABOVE_THE_FOLD"]/div[1]/div[2]/div/div[2]/div/div[1]/div/address/span/span/span[1]/text()')[0].extract()
item['sehir'] = response.xpath('//*[@id="BREADCRUMBS"]/li[4]/a/span/text()')[0].extract()
item['tel'] = response.xpath('//*[@id="ABOVE_THE_FOLD"]/div[1]/div[2]/div/div[2]/div/div[1]/div/div/div/div[1]/div/text()')[0].extract()
item['ilce'] = response.xpath('//*[@id="BREADCRUMBS"]/li[5]/a/span/text()')[0].extract()
yield item
class cqrbSpider(CrawlSpider):
name = site_name
allowed_domains = [
"cqrbepaper.cqnews.net",
]
start_urls = url_list
rules = (
Rule(LinkExtractor(allow=('/cqrb/html/\d{4}-\d{2}/\d{2}/content.+$')), \
callback='parse_data', follow=True,),
)
def parse_data(self, response):
# get the publish time and store the fils by year/month
time = response.url.split('/')[5]
year = time[0:4]
month = time[5:7]
path = data_dir + '/' + year + '/' + month
if not os.path.exists(path):
os.makedirs(path)
# Get the title
title = response.xpath('//tr/td/strong/text()').extract()[1].strip().encode('utf-8')
# get the content
content_list = response.xpath('//*[@id="ozoom"]/founder-content//text()').extract()
content = "".join(content_list).strip().encode("utf-8")
# If the time or the content is empty,Means we get the wrong page
# Do not create the file
if title and content:
filename = path + '/' + title + '.txt'
with open(filename, 'wb') as f:
f.write(content)
class ProxySpider(CrawlSpider):
name = "proxy"
#allowed_domains = ['xici.net.co', 'youdaili.net']
start_urls = [
r"http://www.baidu.com/s?ie=utf-8&f=8&rsv_bp=1&rsv_idx=1&tn=baidu&wd=ip%20proxy",
r"http://www.baidu.com/s?ie=utf-8&f=8&rsv_bp=1&rsv_idx=1&tn=baidu&wd=ip%20proxy&pn=10",
r"http://www.baidu.com/s?ie=utf-8&f=8&rsv_bp=1&rsv_idx=1&tn=baidu&wd=ip%20proxy&pn=20",
r"http://www.baidu.com/s?ie=utf-8&f=8&rsv_bp=1&rsv_idx=1&tn=baidu&wd=ip%20proxy&pn=30",
r"http://www.baidu.com/s?ie=utf-8&f=8&rsv_bp=1&rsv_idx=1&tn=baidu&wd=ip%20proxy&pn=40",
r"http://www.baidu.com/s?ie=utf-8&f=8&rsv_bp=1&rsv_idx=1&tn=baidu&wd=ip%20proxy&pn=50",
r"http://www.baidu.com/s?ie=utf-8&f=8&rsv_bp=1&rsv_idx=1&tn=baidu&wd=ip%20proxy&pn=60",
r"http://www.gfsoso.net/?q=ip+proxy&t=1",
r"http://www.gfsoso.net/?q=ip+proxy&pn=10",
r"http://www.gfsoso.net/?q=ip+proxy&pn=20",
r"http://www.gfsoso.net/?q=ip+proxy&pn=30",
r"http://www.gfsoso.net/?q=ip+proxy&pn=40",
r"http://www.gfsoso.net/?q=ip+proxy&pn=50",
r"http://www.gfsoso.net/?q=ip+proxy&pn=60",
]
rules = (Rule(LinkExtractor(allow=(r'', )), callback='parse_item'), )
def parse_item(self, response):
soup = BeautifulSoup(response.body)
str_list = [tag.string or '' for tag in soup.find_all(True)]
body_str = ' '.join(str_list)
# items = [ GoproxyItem(ip=group[0], port=group[7], protocol='HTTP') for group in re.findall(REG_IP, body_str) ]
for group in re.findall(REG_IP, body_str):
proxy_item, created = ProxyItem.objects.update_or_create(
ip=group[0])
proxy_item.port = group[7]
proxy_item.save()
class QuotesSpider(scrapy.Spider):
name = "express" # name of spider to be called during execution
start_urls = ['http://indianexpress.com/section/india/']
rules = (Rule(LinkExtractor(
allow=(), restrict_css=('.yt-uix-button-content a ::attr(href)')),
callback="parse_page",
follow=True), )
def parse(self, response):
for quote in response.css(
'div.articles'
): # content taken from article(storyclass of manorama website
yield {
'Date': quote.css('div.date::text').extract_first(
), # date to be taken from section-teaserlist of website
'Headlines': quote.css('div.title a::text').extract_first(),
'link': quote.css('div.title a::attr(href)').extract()
}
NEXT_PAGE_SELECTOR = 'div.pagination a ::attr(href)'
next_page = response.css(NEXT_PAGE_SELECTOR).extract_first()
try:
next_page = response.css(
'div.pagination a::attr(href)').extract()[0]
yield scrapy.Request(response.urljoin(next_page),
callback=self.parse)
except IndexError:
pass
class BbcSpider(CrawlSpider):
name = "bbc"
#Crawler will no go beyond this domains
allowed_domains = ["bbc.com"]
#Where to start crawling
start_urls = ('http://www.bbc.com/', )
rules = (
# Change rule as per the requirements otherwise it will take hours
#Rule(LinkExtractor(allow=r'/news/[A-Za-z0-9]'), callback='parse_item', follow=True),
Rule(LinkExtractor(allow=r'/news/[a-z]'),
callback='parse_item',
follow=True), )
def parse_item(self, response):
hxs = HtmlXPathSelector(response)
item = CrawlerItem()
#Use xpath or class selector
#item['text'] = response.xpath('//*[@id="page"]/div[2]/div[2]/div/div[1]/div[1]/div[3]/p[1]//text()').extract()[0]
item['text'] = hxs.select(
'//p[@class="story-body__introduction"]/text()').extract()
item['author'] = "BBC News Media"
#item['headline'] = response.xpath('//*[@id="page"]/div[2]/div[2]/div/div[1]/div[1]/h1//text()').extract()[0]
item['headline'] = hxs.select(
'//h1[@class="story-body__h1"]/text()').extract()
item['url'] = response.url
yield item
def parse(self, response):
print 'startPageSpider==========================>',response.url
# log.msg(format='%(iPid)s, %(url)s, %(project)s ', iPid = self.taskId, url = response.url, project=self.project)
listQuqueCount = self.redis.llen('scrapy:startPageSpider:listQuque:%s' % self.taskId)
if listQuqueCount == 1:
self._crawler.signals.send_catch_log('writeListQuque')
elif listQuqueCount == 0:
self._crawler.signals.send_catch_log('emptyListQuque')
print 'startPageSpider---------send_catch_log->emptyListQuque'
if response.url not in self.hasCrawlSet:
pattern = re.compile(r'%s' % self.project['szStartUrlReg'])
self.hasCrawlSet.add(response.url)
if pattern.match(response.url) and response.url not in self.hasInsertSet:
title = "|".join(response.xpath('/html/head/title/text()').extract())
insertSql = 'INSERT INTO project_start_page(iPid, szUrl, szTitle,dtLastScrapyTime) VALUES(%d, "%s", "%s", "%s")' % (self.taskId, response.url, title, time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time())))
self.dbUtils.insert(insertSql)
self.hasInsertSet.add(response.url)
self.redis.lpush('scrapy:startPageSpider:listQuque:%s' % self.taskId, response.url)
#self.redis.sadd('scrapy:startPageSpider:startPage:2', response.url)
log.msg(format='spider=startPageSpider iPid=%(i)s, title=%(t)s url=%(u)s', i = self.taskId, t=title, u=response.url)
_allow = ( _allow for _allow in self.project['szStartUrlReg'].split('~'))
self.linkExtractor = LinkExtractor(allow_domains=self.domain, allow=_allow)
links = [ link for link in self.linkExtractor.extract_links(response) if link.url not in self.hasCrawlSet ]
for link in links:
yield self.make_requests_from_url(link.url)
class solidotSpider(CrawlSpider):
name = site_name
allowed_domains = [
"solidot.org",
]
start_urls = url_list
rules = (
Rule(LinkExtractor(allow=('story\?sid=\d+$')), \
callback='parse_data', follow=True,),
)
def parse_data(self, response):
# get the publish time and store the fils by year/month
date_string = response.xpath('//div[@class="talk_time"]/text()')\
.extract()[2].split(' ')[2]
year = date_string[0:4]
month = date_string[5:7]
path = data_dir + '/' + year + '/' + month
if not os.path.exists(path):
os.makedirs(path)
# Get the title
title = response.xpath(
'//div[@class="bg_htit"]/h2/text()').extract()[0]
# get the content
content_list = response.xpath(
'//div[@class="p_mainnew"]/text()').extract()
content = "".join(content_list).strip().encode("utf-8")
# If the time or the content is empty,Means we get the wrong page
# Do not create the file
if title and content:
filename = path + '/' + title + '.txt'
with open(filename, 'wb') as f:
f.write(content)
class CountrySpider(CrawlSpider):
name = 'country'
allowed_domains = ['example.webscraping.com']
start_urls = ['http://example.webscraping.com/']
rules = (Rule(LinkExtractor(allow='/index/', deny='/user/'), follow=True),
Rule(LinkExtractor(allow='/view/', deny='/user/'),
callback='parse_item'))
def parse_item(self, response):
item = ExampleItem()
item['name'] = response.css(
'tr#places_country__row td.w2p_fw::text').extract()
item['population'] = response.css(
'tr#places_population__row td.w2p_fw::text').extract()
return item
class FollowAllSpider(Spider):
name = 'followall'
def __init__(self, **kw):
super(FollowAllSpider, self).__init__(**kw)
url = kw.get('url') or kw.get('domain') or 'http://scrapinghub.com/'
if not url.startswith('http://') and not url.startswith('https://'):
url = 'http://%s/' % url
self.url = url
self.allowed_domains = [re.sub(r'^www\.', '', urlparse(url).hostname)]
self.link_extractor = LinkExtractor()
self.cookies_seen = set()
def start_requests(self):
return [Request(self.url, callback=self.parse, dont_filter=True)]
def parse(self, response):
"""Parse a PageItem and all requests to follow
@url http://www.scrapinghub.com/
@returns items 1 1
@returns requests 1
@scrapes url title foo
"""
page = self._get_item(response)
r = [page]
r.extend(self._extract_requests(response))
return r
def _get_item(self, response):
item = Page(url=response.url, size=str(len(response.body)),
referer=response.request.headers.get('Referer'))
self._set_title(item, response)
self._set_new_cookies(item, response)
return item
def _extract_requests(self, response):
r = []
if isinstance(response, HtmlResponse):
links = self.link_extractor.extract_links(response)
r.extend(Request(x.url, callback=self.parse) for x in links)
return r
def _set_title(self, page, response):
if isinstance(response, HtmlResponse):
title = Selector(response).xpath("//title/text()").extract()
if title:
page['title'] = title[0]
def _set_new_cookies(self, page, response):
cookies = []
for cookie in [x.split(';', 1)[0] for x in response.headers.getlist('Set-Cookie')]:
if cookie not in self.cookies_seen:
self.cookies_seen.add(cookie)
cookies.append(cookie)
if cookies:
page['newcookies'] = cookies
def extract_links(self, response):
# The parent can do most of it for us
links = LinkExtractor.extract_links(self, response)
try:
good_links = [link for link in links if link.text.isdigit()]
except TypeError:
return None
return good_links
def __init__(self, **kw):
super(FollowAllSpider, self).__init__(**kw)
url = kw.get('url') or kw.get('domain') or 'http://scrapinghub.com/'
if not url.startswith('http://') and not url.startswith('https://'):
url = 'http://%s/' % url
self.url = url
self.allowed_domains = [re.sub(r'^www\.', '', urlparse(url).hostname)]
self.link_extractor = LinkExtractor()
self.cookies_seen = set()
def parse(self, response):
# set the allowed domains in link
ln_extractor = LinkExtractor(allow_domains=("news.sina.cn"),
allow = (".*vt=1.*"))
# get the links from the response
links = ln_extractor.extract_links(response)
urls = []
items = []
for i in links:
urls.append(i.url)
# all the not visited urls are put into container and queue.
if i.url not in self.g_container_urls:
self.g_queue_urls.put(i.url)
self.g_container_urls.add(i.url)
# make all the request in the queue
for j in range(self.g_queue_urls.qsize()):
tp_url = self.g_queue_urls.get()
items.append(self.make_requests_from_url(tp_url).
replace(callback=self.parse_page))
items.append(self.make_requests_from_url(tp_url))
return items
class startPageSpider(Spider):
name = 'startPageSpider'
def __init__(self, taskId, *a, **kw):
"""Constructor"""
self.name +='_'+str(taskId)
super(startPageSpider, self).__init__(*a, **kw)
pool = redis.ConnectionPool(host='localhost', port=6379, db=0)
self.redis = redis.Redis(connection_pool=pool)
self.dbUtils = db.dbUtils()
self.taskId = int(taskId)
self.project = None
self.domain = None
self.hasCrawlSet = set()
self.hasInsertSet = set()
project = self.dbUtils.queryRow('SELECT * FROM project_setting WHERE iStatus=1 AND iPid=%d' % self.taskId)
if project :
self.project = project
self.start_urls = str(project['szStartUrl']).split('~')
self.domain = ".".join(urlparse(project['szDomain']).hostname.split(".")[-2:])
def parse(self, response):
print 'startPageSpider==========================>',response.url
# log.msg(format='%(iPid)s, %(url)s, %(project)s ', iPid = self.taskId, url = response.url, project=self.project)
listQuqueCount = self.redis.llen('scrapy:startPageSpider:listQuque:%s' % self.taskId)
if listQuqueCount == 1:
self._crawler.signals.send_catch_log('writeListQuque')
elif listQuqueCount == 0:
self._crawler.signals.send_catch_log('emptyListQuque')
print 'startPageSpider---------send_catch_log->emptyListQuque'
if response.url not in self.hasCrawlSet:
pattern = re.compile(r'%s' % self.project['szStartUrlReg'])
self.hasCrawlSet.add(response.url)
if pattern.match(response.url) and response.url not in self.hasInsertSet:
title = "|".join(response.xpath('/html/head/title/text()').extract())
insertSql = 'INSERT INTO project_start_page(iPid, szUrl, szTitle,dtLastScrapyTime) VALUES(%d, "%s", "%s", "%s")' % (self.taskId, response.url, title, time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time())))
self.dbUtils.insert(insertSql)
self.hasInsertSet.add(response.url)
self.redis.lpush('scrapy:startPageSpider:listQuque:%s' % self.taskId, response.url)
#self.redis.sadd('scrapy:startPageSpider:startPage:2', response.url)
log.msg(format='spider=startPageSpider iPid=%(i)s, title=%(t)s url=%(u)s', i = self.taskId, t=title, u=response.url)
_allow = ( _allow for _allow in self.project['szStartUrlReg'].split('~'))
self.linkExtractor = LinkExtractor(allow_domains=self.domain, allow=_allow)
links = [ link for link in self.linkExtractor.extract_links(response) if link.url not in self.hasCrawlSet ]
for link in links:
yield self.make_requests_from_url(link.url)
def parse(self, response):
#self.redis.sadd('scrapy:startPageSpider:startPage:3', response.url)
if response.url not in self.hasCrawlSet:
#self.redis.sadd('scrapy:startPageSpider:startPage:4', response.url)
self.hasCrawlSet.add(response.url)
_allow = ( _allow for _allow in self.project['szUrlReg'].split('~'))
self.linkExtractor = LinkExtractor(allow_domains=self.domain, allow=_allow)
links = [ link for link in self.linkExtractor.extract_links(response) if link.url not in self.hasInsertSet ]
#self.redis.hset('scrapy:startPageSpider:listPage:count', response.url, len(links))
for link in links:
if link.url in self.hasInsertSet : continue
insertSql = 'INSERT INTO project_list_page(iPid, szUrl, szTitle, szSourceUrl,dtLastScrapyTime) VALUES(%d, "%s", "%s", "%s", "%s")' % (self.taskId,link.url, link.text, response.url, time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time())))
self.dbUtils.insert(insertSql)
self.hasInsertSet.add(link.url)
log.msg(format='spider=listPageSpider iPid=%(i)s, title=%(t)s url=%(u)s', i = self.taskId, t=link.text, u=link.url)
def parse(self, response):
xlink = LinkExtractor()
itemre = re.compile(self.itemurl_re)
for link in xlink.extract_links(response):
if itemre.search(link.url):
yield Request(url=link.url, callback=self.parse_item)
def __init__(self):
LinkExtractor.__init__(self, restrict_xpaths='//div[@id="paging-bottom"]')
class listPageSpider(Spider):
name = 'listPageSpider'
def __init__(self, taskId, *a, **kw):
"""Constructor"""
self.name +='_'+str(taskId)
super(listPageSpider, self).__init__(*a, **kw)
pool = redis.ConnectionPool(host='localhost', port=6379, db=0)
self.redis = redis.Redis(connection_pool=pool)
self.dbUtils = db.dbUtils()
self.taskId = int(taskId)
self.domain = None
self.project = None
self.hasCrawlSet = set()
self.hasInsertSet = set()
self.isExit = 0
project = self.dbUtils.queryRow('SELECT * FROM project_setting WHERE iStatus=1 AND iPid=%d' % self.taskId)
if project :
self.project = project
self.domain = ".".join(urlparse(project['szDomain']).hostname.split(".")[-2:])
# self.start_urls = ['http://www.ty2016.com/cn/2.html', 'http://www.ty2016.com/cn/3.html', 'http://www.ty2016.com/cn/4.html']
def stopSpider(self):
self.isExit = 1
def getStartUrl(self):
url = self.redis.rpop('scrapy:startPageSpider:listQuque')
if not url:
self.getStartUrl()
return url
def start_requests(self):
# url = self.getStartUrl()
# print '=====================>',url
# yield self.make_requests_from_url(url)
while True :
#if self._crawler.engine is not None:
#if self._crawler.engine.paused: break
#if not self._crawler.engine.running: break
url = self.redis.rpop('scrapy:startPageSpider:listQuque:%s' % self.taskId)
#print 'listPageSpider==========================>',url
if url:
#self.redis.sadd('scrapy:startPageSpider:startPage:1', url)
yield self.make_requests_from_url(url)
#else:
#self._crawler.signals.send_catch_log('emptyListQuque')
#print 'listPageSpider---------send_catch_log->emptyListQuque'
def parse(self, response):
#self.redis.sadd('scrapy:startPageSpider:startPage:3', response.url)
if response.url not in self.hasCrawlSet:
#self.redis.sadd('scrapy:startPageSpider:startPage:4', response.url)
self.hasCrawlSet.add(response.url)
_allow = ( _allow for _allow in self.project['szUrlReg'].split('~'))
self.linkExtractor = LinkExtractor(allow_domains=self.domain, allow=_allow)
links = [ link for link in self.linkExtractor.extract_links(response) if link.url not in self.hasInsertSet ]
#self.redis.hset('scrapy:startPageSpider:listPage:count', response.url, len(links))
for link in links:
if link.url in self.hasInsertSet : continue
insertSql = 'INSERT INTO project_list_page(iPid, szUrl, szTitle, szSourceUrl,dtLastScrapyTime) VALUES(%d, "%s", "%s", "%s", "%s")' % (self.taskId,link.url, link.text, response.url, time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time.time())))
self.dbUtils.insert(insertSql)
self.hasInsertSet.add(link.url)
log.msg(format='spider=listPageSpider iPid=%(i)s, title=%(t)s url=%(u)s', i = self.taskId, t=link.text, u=link.url)
def parse_urls(self, response):
extractor = LinkExtractor(restrict_xpaths=('//table[contains(@class,ibm-data-table)]/tbody',))
links = extractor.extract_links(response)
for link in links:
url = link.url
yield Request(url, callback=self.parse_items)
class TopicalFinder(SplashSpiderBase):
name = 'topical_finder'
save_html = None
use_splash = None
def __init__(self, seed_urls=None, save_html=1, use_splash=1, screenshot_dir='/memex-pinterest/ui/static/images/screenshots', op_time=10, **kwargs):
'''
Constructs spider instance from command=line or scrapyd daemon.
:param seed_urls: Comma-separated list of URLs, if empty crawler will be following not crawled URLs from storage
:param save_html: boolean 0/1
:param use_splash: boolean 0/1
:param screenshot_dir: used only when use_splash=1
:param op_time: operating time in minutes, negative - don't use that constraint
:param kwargs:
:return:
'''
super(TopicalFinder, self).__init__(screenshot_dir=screenshot_dir, **kwargs)
self.screenshot_dir = screenshot_dir
log.msg("SCREENSHOT DIR IS SET TO: %s" % str(screenshot_dir), _level=log.DEBUG)
if seed_urls:
self.start_urls = [add_scheme_if_missing(url) for url in seed_urls.split(',')]
self.ranker = Ranker.load()
self.linkextractor = LinkExtractor()
self.save_html = bool(save_html)
self.use_splash = bool(use_splash)
self.operating_time = int(op_time) * 60
self.start_time = datetime.utcnow()
self.finishing = False
def start_requests(self):
for url in self.start_urls:
yield self.make_requests_from_url(url, is_seed=True)
def make_requests_from_url(self, url, is_seed=False):
if self.use_splash:
r = self._splash_request(url)
else:
r = super(TopicalFinder, self).make_requests_from_url(url)
r.meta['score'] = 0.0
r.meta['is_seed'] = False
if is_seed:
r.meta['is_seed'] = True
r.meta['score'] = 1.0 # setting maximum score value for seeds
log.msg("Making request to %s with meta: %s" % (r.url, str(r.meta)), _level=log.DEBUG)
return r
def set_crawler(self, crawler):
super(TopicalFinder, self).set_crawler(crawler)
self.crawler.signals.connect(self.spider_idle, signal=signals.spider_idle)
def spider_idle(self):
log.msg("Spider idle signal caught.", _level=log.DEBUG)
raise DontCloseSpider
def parse(self, response):
ld = self._load_webpage_item(response, is_seed=response.meta['is_seed'])
if self.use_splash:
self._process_splash_response(response, ld)
yield ld.load_item()
if self.finishing:
return
now = datetime.utcnow()
if self.operating_time > 0 and (now - self.start_time).total_seconds() > self.operating_time:
log.msg("Reached operating time constraint. Waiting for Scrapy queue to exhaust.")
self.finishing = True
self.crawler.stop()
return
if not isinstance(response, TextResponse):
return
body = response.body_as_unicode().strip().encode('utf8') or '<html/>'
score = self.ranker.score_html(body)
log.msg("TC: %s has score=%f" % (response.url, score), _level=log.DEBUG)
if score > 0.5:
#!for some reason this is returning the raw splash response JSON
#!and not the rendered HTML from splash
#log.msg(u"\n\n\n****---Response body:\n %s----***\n\n\n" % response.body_as_unicode(), _level=log.DEBUG)
#for link in self.linkextractor.extract_links(response):
#can something like the line below fix it? Seems like a hack...
for link in self.linkextractor.extract_links(response):
log.msg("****---LINK EXTRACED: %s----***" % str(link.url), _level=log.DEBUG)
if self.use_splash:
r = self._splash_request(url=link.url)
else:
r = Request(url=link.url)
external = is_external_url(response.url, link.url)
depth = response.meta.get('link_depth', 0)
r.meta.update({
'link': {
'url': link.url,
'text': link.text,
'fragment': link.fragment,
'nofollow': link.nofollow},
'link_depth': 0 if external else depth + 1,
'referrer_depth': depth,
'referrer_url': response.url,
})
url_parts = urlparse_cached(r)
path_parts = url_parts.path.split('/')
r.meta['score'] = 1.0 / len(path_parts)
r.meta['is_seed'] = False
yield r
def _load_webpage_item(self, response, is_seed):
depth = response.meta.get('link_depth', 0)
ld = WebpageItemLoader(response=response)
ld.add_value('url', response.url)
ld.add_value('host', get_domain(response.url))
ld.add_xpath('title', '//title/text()')
ld.add_value('depth', depth)
ld.add_value('total_depth', response.meta.get('depth'))
ld.add_value('crawled_at', datetime.utcnow())
ld.add_value('is_seed', is_seed)
ld.add_value('crawler_score', response.meta['score'])
if self.save_html:
ld.add_value('html', response.body_as_unicode())
if 'link' in response.meta:
link = response.meta['link']
ld.add_value('link_text', link['text'])
ld.add_value('link_url', link['url'])
ld.add_value('referrer_url', response.meta['referrer_url'])
ld.add_value('referrer_depth', response.meta['referrer_depth'])
return ld
def parse_categories(self, response):
l = LinkExtractor(restrict_xpaths='.//div[@class="categoryListContainer"]')
links = l.extract_links(response)
for link in links:
yield Request(url=link.url, callback=self.parse_items_links)
def parse_level3_contents(self, response):
baseurl = response.xpath('//base/@href').extract()[0]
le = LinkExtractor()
for link in le.extract_links(response):
if self.allowed_domains[0] in link.url:
yield Request(link.url, callback=self.final_contents)
def parse_urls(self, response):
extractor = LinkExtractor(restrict_xpaths=('//div[contains(@class, "news_type2")]/h2',))
links = extractor.extract_links(response)
for link in links:
url = link.url
yield Request(url, callback=self.parse_items)
