def item_completed(self, results, item, info):
if self.LOG_FAILED_RESULTS:
msg = '%s found errors proessing %s' % (self.__class__.__name__,
item)
for ok, value in results:
if not ok:
log.err(value, msg, spider=info.spider)
bookfile_paths_urls = [(x['path'], x['url']) for ok, x in results
if ok]
bookfile_path_url = list_first_item(bookfile_paths_urls)
if bookfile_path_url:
item['book_file'] = os.path.join(
os.path.abspath(self.bookfile_store), bookfile_path_url[0])
item['book_file_url'] = bookfile_path_url[1]
return item
else:
if self.item_download[item['original_url']]:
next = list_first_item(
self.item_download[item['original_url']])
self.item_download[item['original_url']] = self.item_download[
item['original_url']][1:]
return Request(next)
else:
return item
def parse_detail(self, response):
woaidu_item = WoaiduCrawlerItem()
response_selector = HtmlXPathSelector(response)
woaidu_item['book_name'] = list_first_item(
response_selector.select(
'//div[@class="zizida"][1]/text()').extract())
woaidu_item['author'] = [
list_first_item(
response_selector.select('//div[@class="xiaoxiao"][1]/text()').
extract())[5:].strip(),
]
woaidu_item['book_description'] = list_first_item(
response_selector.select(
'//div[@class="lili"][1]/text()').extract()).strip()
woaidu_item['book_covor_image_url'] = list_first_item(
response_selector.select(
'//div[@class="hong"][1]/img/@src').extract())
download = []
for i in response_selector.select(
'//div[contains(@class,"xiazai_xiao")]')[1:]:
download_item = {}
download_item['url'] = \
strip_null(deduplication(
[
list_first_item(i.select('./div')[0].select('./a/@href').extract()),
list_first_item(i.select('./div')[1].select('./a/@href').extract())
]
)
)
download_item['progress'] = list_first_item(
i.select('./div')[2].select('./text()').extract())
download_item['update_time'] = list_first_item(
i.select('./div')[3].select('./text()').extract())
download_item['source_site'] = [
list_first_item(i.select('./div')[4].select('./a/text()').extract()),
list_first_item(i.select('./div')[4].select('./a/@href').extract())
]\
download.append(download_item)
woaidu_item['book_download'] = download
woaidu_item['original_url'] = response.url
yield woaidu_item
def parse(self,response):
response_selector = HtmlXPathSelector(response)
next_link = list_first_item(response_selector.select(u'//div[@class="k2"]/div/a[text()="下一页"]/@href').extract())
if next_link:
next_link = clean_url(response.url,next_link,response.encoding)
#what does it mean yield
yield Request(url=next_link, callback=self.parse)
def parse(self,response):
response_selector = HtmlXPathSelector(response)
next_link = list_first_item(response_selector.select(u'//div[@class="k2"]/div/a[text()="下一页"]/@href').extract())
if next_link:
next_link = clean_url(response.url,next_link,response.encoding)
yield Request(url=next_link, callback=self.parse)
for detail_link in response_selector.select(u'//div[contains(@class,"sousuolist")]/a/@href').extract():
if detail_link:
detail_link = clean_url(response.url,detail_link,response.encoding)
yield Request(url=detail_link, callback=self.parse_detail)
def item_completed(self, results, item, info):
if self.LOG_FAILED_RESULTS:
msg = '%s found errors proessing %s' % (self.__class__.__name__, item)
for ok, value in results:
if not ok:
log.err(value, msg, spider=info.spider)
bookfile_paths_urls = [(x['path'],x['url']) for ok, x in results if ok]
bookfile_path_url = list_first_item(bookfile_paths_urls)
if bookfile_path_url:
item['book_file'] = os.path.join(os.path.abspath(self.bookfile_store),bookfile_path_url[0])
item['book_file_url'] = bookfile_path_url[1]
return item
else:
if self.item_download[item['original_url']]:
next = list_first_item(self.item_download[item['original_url']])
self.item_download[item['original_url']] = self.item_download[item['original_url']][1:]
return Request(next)
else:
return item
def item_completed(self, results, item, info):
if self.LOG_FAILED_RESULTS:
msg = '%s found errors proessing %s' % (self.__class__.__name__, item)
for ok, value in results:
if not ok:
log.err(value, msg, spider=info.spider)
image_paths = [x['path'] for ok, x in results if ok]
image_path = list_first_item(image_paths)
item['book_covor_image_path'] = os.path.join(os.path.abspath(self.images_store),image_path) if image_path else ""
return item
def get_media_requests(self, item, info):
"""
Only download once per book,so it pick out one from all of the download urls.
"""
#XXX:To test specific url,you can use the following method:
#return Request("http://down.wmtxt.com/wmtxt/wmtxt/UploadFile/2010-6/%A1%B6%D3%F6%BC%FB%C4%E3%A1%B7.rar")
if item.get('book_download'):
downloadfile_urls = [i['url'] for i in item.get('book_download') if i['url']]
downloadfile_urls = list(set(itertools.chain(*downloadfile_urls)))
first_download_file = list_first_item(downloadfile_urls)
self.item_download[item['original_url']] = downloadfile_urls[1:]
if first_download_file:
return Request(first_download_file)
def parse_detail(self, response):
woaidu_item = WoaiduCrawlerItem()
response_selector = HtmlXPathSelector(response)
woaidu_item['book_name'] = list_first_item(response_selector.select('//div[@class="zizida"][1]/text()').extract())
woaidu_item['author'] = [list_first_item(response_selector.select('//div[@class="xiaoxiao"][1]/text()').extract())[5:].strip(),]
woaidu_item['book_description'] = list_first_item(response_selector.select('//div[@class="lili"][1]/text()').extract()).strip()
woaidu_item['book_covor_image_url'] = list_first_item(response_selector.select('//div[@class="hong"][1]/img/@src').extract())
download = []
for i in response_selector.select('//div[contains(@class,"xiazai_xiao")]')[1:]:
download_item = {}
download_item['url'] = \
strip_null( \
deduplication(\
[\
list_first_item(i.select('./div')[0].select('./a/@href').extract()),\
list_first_item(i.select('./div')[1].select('./a/@href').extract())\
]\
)\
)
download_item['progress'] = list_first_item(i.select('./div')[2].select('./text()').extract())
download_item['update_time'] = list_first_item(i.select('./div')[3].select('./text()').extract())
download_item['source_site'] = \
[\
list_first_item(i.select('./div')[4].select('./a/text()').extract()),\
list_first_item(i.select('./div')[4].select('./a/@href').extract())\
]\
download.append(download_item)
woaidu_item['book_download'] = download
woaidu_item['original_url'] = response.url
yield woaidu_item
def get_media_requests(self, item, info):
"""
Only download once per book,so it pick out one from all of the download urls.
"""
#XXX:To test specific url,you can use the following method:
#return Request("http://down.wmtxt.com/wmtxt/wmtxt/UploadFile/2010-6/%A1%B6%D3%F6%BC%FB%C4%E3%A1%B7.rar")
if item.get('book_download'):
downloadfile_urls = [
i['url'] for i in item.get('book_download') if i['url']
]
downloadfile_urls = list(set(itertools.chain(*downloadfile_urls)))
first_download_file = list_first_item(downloadfile_urls)
self.item_download[item['original_url']] = downloadfile_urls[1:]
if first_download_file:
return Request(first_download_file)
def stat_file(self, key, info):
"""
the stat is the file key dir,
the last_modified is the file that saved to the file key dir.
"""
keydir = os.path.join(self.basedir, *key.split('/'))
filenames = os.listdir(keydir)
if len(filenames) != 1:
shutil.rmtree(keydir, True)
return {}
else:
filename = list_first_item(filenames)
absolute_path = self._get_filesystem_path(key)
try:
last_modified = os.path.getmtime(absolute_path)
except Exception as e: # FIXME: catching everything!
return {}
with open(os.path.join(absolute_path, filename), 'rb') as file_content:
checksum = md5sum(file_content)
return {'last_modified': last_modified, 'checksum': checksum}
def stat_file(self, key, info):
"""
the stat is the file key dir,
the last_modified is the file that saved to the file key dir.
"""
keydir = os.path.join(self.basedir, *key.split('/'))
filenames = os.listdir(keydir)
if len(filenames) != 1:
shutil.rmtree(keydir,True)
return {}
else:
filename = list_first_item(filenames)
absolute_path = self._get_filesystem_path(key)
try:
last_modified = os.path.getmtime(absolute_path)
except: # FIXME: catching everything!
return {}
with open(os.path.join(absolute_path,filename), 'rb') as file_content:
checksum = md5sum(file_content)
return {'last_modified': last_modified, 'checksum': checksum}